• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a thermostatic single-control cartridge equipped with ceramic discs (1) with a control member (9a) for a flow rate and a temperature of a mixed fluid displacing a thermostatic element (8) by regulating the temperature of the fluid mitigated between extreme positions of adjustment, an overtravel spring (10) being interposed between a regulating slide (7) and the thermostatic element (8) being compressed by an overtravel between the extreme positions of adjustment. Retractable locking means (11, 12) temporarily block (1) the adjustment of the temperature of the mixed fluid in an intermediate position of the control member (9a) between the extreme adjustment positions allowing, in this intermediate position, to reduce overtravel by half compared to existing systems in the state of the art.
    公开号:FR3044782A1
    申请号:FR1502536
    申请日:2015-12-07
    公开日:2017-06-09
    发明作者:Jean Chamot
    申请人:Jean Chamot；
    IPC主号:
    专利说明:

    Single-control thermostatic cartridge and mixing valve with such a cartridge
    The present invention relates to a ceramic disk thermostatic cartridge having a small footprint for use in a thermostatic mixing valve.
    Such cartridges can equip mainly thermostatic faucets for showers, bathtubs, sinks, sinks.
    Mechanical ceramic cartridges or thermostatic valves are known from the state of the art.
    Document FR-A-2 841 348 describes a thermostatic cartridge of the type comprising a body inside which are arranged a mixed fluid chamber, a disk fixed relative to said body and a disk movable relative to the fixed disk. The fixed disk is provided with several inlet and outlet passages respectively of cold fluid and hot fluid and the mobile disk is provided with passages adapted to communicate the inlet and outlet passages of the fixed disk.
    This document provides a solution to effectively stabilize the temperature of the output fluid, that is to say the fluid that has been mixed inside the cartridge and hereinafter referred to as mixed fluid. However, the pressure and / or the temperature of at least one of the inlet fluids, namely mainly cold water or hot water, can vary significantly and / or abruptly. Therefore, cartridges of this type equipped with a thermostatic element have been proposed for regulating the temperature of the output fluid. For this purpose, the cartridge comprises thermostatic control means comprising a regulating slide disposed in the mixed fluid chamber, a thermostatic element located at least partly inside the mixed fluid chamber to which is mechanically connected the slide of control and a control member of the flow rate and the mixed fluid temperature. This control member is adapted both to drive in rotation and in translation the mobile disk relative to the fixed disk and to adjust the correct position of the thermostatic element inside the mixed fluid chamber.
    The body of the thermostatic element has a thermostatic element containing a predetermined amount of expandable wax. The wax expands by increasing its volume when it passes from the solid state to the liquid state under the influence of an increase of temperature. It shrinks under the influence of a drop in temperature.
    It is necessary to put a return spring on the piston of the thermostatic element to ensure a controlled return thereof when going down in temperature.
    In all thermostatic cartridge constructions controlled by a wax expansion element, the thermostatic element controls a hot fluid / cool fluid mixing slide to obtain a mixed fluid exiting at the desired temperature set by a control knob external to the cartridge. .
    This control handle cooperates with a control member carried by the cartridge for transmitting the actuation of the control lever inside the cartridge. This control member is adjustably associated with the piston of the thermostatic element disposed between the control member and the latter. The controller opens the mixed fluid outlet of the cartridge between open positions corresponding to a minimum cold temperature and a maximum hot temperature.
    When using it can be abruptly passed during the settings with the joystick from one temperature to another. For example, it is possible to go from a minimum cold temperature to a maximum hot temperature. This causes the drawer to open wide on the hot fluid side without any problem for the thermostatic element.
    On the other hand, during a passage from the maximum hot temperature to a minimum cold temperature, this causes the cold fluid drawer to open wide and will cause the expansion piston of the thermostatic element to retract. This retraction is not immediate: it depends on the reaction time of the thermostatic element. It is necessary to take into account the retraction delay of the piston of the thermostatic element to provide an overtravel spring, which must accept the stroke of a maximum temperature at a minimum temperature of the thermostatic element, hereinafter referred to as C1.
    Thus, this overtravel spring is interposed between the regulating slide and the thermostatic element within the mixed fluid chamber and which is the hottest maximum temperature at the coldest minimum temperature.
    This overtravel spring makes it possible to prevent the blocking of the piston in dilation with the consequence of a risk of breakage or of "shifting" of the thermostatic element.
    This overtravel is very penalizing in the construction of the cartridge because it lengthens the total length of it. It is customary to provide an overtravel spring having an overtravel of about 4 mm minimum, which implies a spring length of 12 to 15 mm, which increases the size of the cartridge.
    However, there is a strong demand to make interchangeable a thermostatic single-control cartridge having an expandable element with small-sized ceramic mechanical cartridges according to current standards, for example a cartridge having an outer diameter of 40 mm, a height of 43 mm or a cartridge having an outer diameter of 35 mm and a height of 41 mm.
    The problem underlying the present invention is to design a thermostatic single-lever cartridge for a mixing valve from a cold fluid and a hot fluid for an effective adjustment of the temperature and mixed fluid flow while having dimensions the more reduced to match existing standards. For this purpose, there is provided according to the invention a thermostatic cartridge of the type comprising a body inside which are formed a mixed fluid chamber, a disk fixed relative to said body and a movable disk relative to the fixed disk, the fixed disk being provided with at least two inlet passages and at least two outlet passages respectively of cold fluid and hot fluid and the movable disk being provided with passages adapted to communicate the inlet and outlet passages of the disk fixed, thermostatic control means comprising a regulating slide disposed in the mixed fluid chamber, a thermostatic element located at least partly inside the mitigated fluid chamber to which is mechanically connected the regulating slide and a control member; control of the flow rate and the mixed fluid temperature adapted to both rotate and translate the moving disk relative to to the fixed disk and to adjust the position of the piston of the thermostatic element inside the chamber of the mixing chamber, the control member regulating a flow rate and a temperature of the fluid mixed between corresponding corresponding extreme positions respectively at a minimum cold temperature and at a maximum warm temperature of the mixed fluid. An overtravel spring is interposed between the regulating slide and the thermostatic element being placed inside the slide to immobilize it in the control phase ranging from a minimum cold temperature to a maximum hot temperature with a load of approximately twice the load of the control spring provided to accept the overtravel required in the sudden changes in temperature, characterized in that the retractable locking means temporarily block the temperature adjustment of the fluid mixed in an intermediate position of the organ control between said two extreme adjustment positions allowing in this intermediate position to reduce the over-ride by half compared to the total overtravel required.
    The value of the necessary overtravel C1 is divided by two with the invention by two successive steps.
    There are retractable locking means which temporarily block the temperature adjustment of the fluid mixed in an intermediate position of the control member between said two extreme adjustment positions The compression of the overtravel spring from its maximum warm position to the intermediate position accepts overtravel at most equal to about half of the stroke C1 is 2mm instead of 4mm.
    It is therefore possible to provide a decreased length of spring sufficient to ensure an overtravel lower than the required overtravel of a spring in the state of the art and therefore a smaller footprint in length. This is achieved because the cartridge according to the present invention makes it possible to halve the overtravel thanks to the retractable lock in the intermediate position.
    There may exist according to the state of the art retractable stop temporarily preventing a cold temperature adjustment to the hot temperature at an intermediate temperature so-called comfort temperature. This stop is retractable to adjust to the maximum hot temperature. It is inoperative in the direction of maximum hot temperature at minimum cold temperature and therefore unidirectional.
    Such an abutment does not resemble the retractable locking means according to the invention, since in the invention the retractable abutment acts in both directions. In the direction of minimum temperature to maximum temperature by blocking at a comfort temperature as in existing faucets and in the direction of a maximum temperature variation at a minimum cold temperature. It is therefore bidirectional unlike that of existing faucets.
    It is however possible to retain a stop of the state of the art for a cartridge according to the present invention, this stop having a completely different role than the retractable locking means and does not interfere with that existing on the thermostatic valves of the market .
    Optionally, the invention further comprises at least any of the following features: - the body comprises a cap housing a control nut in which is inserted a set screw provided with an external thread engaged with a thread inside the control nut, the adjusting screw being supported on one side against a piston connecting it to the thermostatic element, a maneuvering square intended to be secured to a control lever acting as a control member driving the adjusting screw in translation in the body of the other side of the piston of the thermostatic element. - The retractable locking means are in the form of a spring inserted into a housing arranged in the control nut and a ball, the ball being vis-à-vis an inner wall of the cover being recalled by the spring protruding from the control nut to enter a groove carried internally by the cover in the intermediate position of the control member. the overtravel spring is housed radially inside a hub of the regulation slide. the mobile disc comprises at least one cold fluid passage adapted to put in communication the inlet passage (s) and the cold fluid outlet passage (s) of the fixed disk and at least one hot fluid passage adapted to put in communication the inlet passage (s) and the hot fluid outlet passage (s) of the fixed disk. the fixed disk comprises, for the same cold or hot fluid, several inlet passages separated from one another and / or a plurality of separate outlet passages from each other, the inlet passages and the outlet passages for the fluids cold and hot being distributed on the fixed disc alternately on a ring of the same diameter. - On the fixed disc, the inlet and outlet passages are each two in cold or hot fluid. at least the majority of the inlet and outlet passages have fluid passages in the form of split crowns on the fixed disk and concentric with respect to the center of the disc, advantageously of bean-shaped shape, two in number on the mobile disk. - The cartridge has at least two flat seals conforming to the contours of the openings to be sealed based on metal and rubber molded.
    According to another object of the invention, there is provided a thermostatic mixing valve equipped with such a cartridge, characterized in that it comprises a control knob of the flow rate and the temperature of the fluid mixed, integral with the control member of the cartridge. Other features, objects and advantages of the present invention will appear on reading the detailed description which follows and with reference to the appended drawings given as non-limiting examples and in which: FIG. 1 is a diagrammatic representation of a longitudinal sectional view, in a first plane, of an embodiment of a thermostatic cartridge according to the invention, an external control lever being associated with the cartridge, the cartridge being represented tap open in large, - the FIG. 2 is a schematic representation of a longitudinal sectional view, along a second plane, of the embodiment of a thermostatic cartridge shown in FIG. 1, with the locking means in the intermediate position between a cold mixed-fluid position and a fluid position at the temperature being visible at this position. It should be noted that other retractable stop means can be implemented, by external action placed on the control lever of the temperature and the flow, - Figure 3 is a schematic representation of a top view of an embodiment of a fixed disk forming part of the cartridge according to the present invention; - FIG. 4 is a schematic representation of a top view of an embodiment of a mobile disk forming part of the cartridge according to the present invention; FIG. 5 is a schematic representation of a longitudinal sectional view of a thermostatic element forming part of the cartridge according to the present invention; FIG. 6 illustrates a curve representing the piston stroke of the element; thermostatic according to the temperature of the mixed fluid leaving a cartridge according to the present invention. FIGS. 7 to 9 schematically represent different positions of flow rate of the mobile disk on the fixed disk in intermediate temperature position.
    Referring to all the figures and more particularly to Figures 1 and 2, the present invention relates to a thermostatic single-control cartridge 1 of the type comprising a body 2 inside which are formed a chamber 3 of mixed fluid, a fixed disc 4 relative to said body 2 and a movable disk 5 relative to the fixed disc 4. The mixed fluid is most frequently water whose temperature can be adjustable via a thermostatic element 8 and elements associated therewith.
    The fixed disk 4 is provided with at least two cold inlet passages 20a and at least two outlet passages 19s and two hot inlet passages 22a and at least two outlet passages 21s.
    The mobile disc 5 is provided with passages 23, 24 adapted to put in communication the cold side inlet inlet passages 20a and 19s outlet and hot inlet side 22a and outlet 21s of the fixed disk 4. This will be better seen with reference to FIGS. and 4.
    The cartridge 1 comprises thermostatic control means 6 comprising a regulating slide 7 disposed in the chamber 3 of mixed fluid. A thermostatic element 8 is located at least partly inside the chamber 3 of mixed fluid to which thermostatic element 8 is connected via the overtravel spring which immobilizes the regulation spool 7. A control spring 39 of the spool 7 recalls the piston of the thermostatic element. It has a load value that is approximately half the load of the overtravel spring which immobilizes the slide in the regulation position.
    The settings of the flow rate and the temperature of the mixed fluid leaving the cartridge 1 are carried out by a control member 9a adapted both to drive the mobile disc 5 in rotation and in translation with respect to the fixed disc 4 and to adjust as a function of the desired temperature the piston of the thermostatic element 8 inside the chamber 3 of mixed fluid. The control member 9a can close the flow of the cartridge.
    In this case, no fluid leaves the cartridge 1, the control member 9a also makes it possible to adjust the temperature of the mixed fluid leaving the cartridge 1 by rotation.
    Thus, the control member can place the cartridge 1 between extreme temperature setting positions corresponding, on the one hand, to a mixed fluid leaving the cartridge 1 at a minimum cold temperature and, on the other hand, to a mixed fluid leaving the cartridge 1 at a maximum hot temperature. Between these two positions, there may be intermediate opening positions with a mixed fluid more or less hot leaving the cartridge 1.
    Thus, as in all thermostatic cartridge constructions controlled by a wax expansion element, the wax being housed in the thermostatic element 8 as will be detailed below with reference to FIG. 5, the thermostatic element 8 controls a piston of control 16 for mixing hot fluid / cold fluid to obtain the mixed fluid leaving the desired temperature set by the control member 9a. This control member 9a is intended to be secured to an operating lever 9 outside the cartridge 1 and operable by the hand of a user.
    Thanks to the wax contained in the thermostatic element 8, if a cold fluid cutoff occurs and a hot fluid supply continues, the thermostatic element 8 will expand and cause the closure of the hot fluid, which constitutes the safety scald.
    A regulating spring 39 recalls the piston of the thermostatic element when it is in phase temperature regulation of the mixed output fluid. It is necessary to provide an overtravel spring 10 which immobilizes the slide in the temperature control phase of the mixed fluid. .
    The overtravel spring 10 is calibrated in load at a value approximately twice the value of the control spring 39. The control spring 39 acts only in the temperature control phase of the mixed fluid.
    The overtravel spring 10 acts only in the following cases: - in case of safety against burning when it is in use of cold water cut with hot water remaining fed. Overtravel is always less than 2 mm in this case and therefore less than that which falls within the scope of the present invention. - in the event of a closed tap remaining at a temperature of 15 ° C but placed in an ambient temperature of 30 ° C or more. Overtravel is always less than 2 mm in this case and therefore less than that which falls within the scope of the present invention. - During rapid movements of the control lever 9 by the operator where two cases can occur: - Rapid movement of the cold temperature control knob to comfortable temperature (38 or 40 ° C): the drawer opens in large the hot fluid and the piston expands to this comfort temperature through the retractable stop 12. The same applies to the comfort temperature at the maximum hot temperature.
    In both cases the drawer opens the arrival of hot fluid. The piston of the thermostatic element will move with a certain delay without affecting the locking of the piston of the thermostatic element which can expand without being stressed. - Rapid displacement of the position of maximum hot temperature to the minimum cold temperature. In this case the drawer opens the passage of cold water and the element retracts with a certain delay. The overtravel spring must accept the stroke C1 and which has the value of the piston position difference from the maximum hot temperature to the minimum cold position as shown in Figure 5. It is in this operating situation that represents the overtravel maximum subject to the present invention, temporarily blocking the displacement of the maximum temperature adjustment to the intermediate temperature and which has the effect of dividing by two the value of this overtravel through the retractable stop 12. This is the the most penalizing function condition for the overtravel spring.
    It is the same for the transition from the intermediate temperature position to the minimum cold position which represents the other half of the C1 overtravel.
    The maximum overtravel required occurs when the temperature is adjusted to lower temperatures. The retractable locking means 11, 12 are therefore operative during the passage of a very hot mixed fluid temperature, for example at the extreme temperature at a minimum cold temperature to an intermediate position corresponding to a moderately hot temperature, for example a so-called comfort temperature. The invention mainly consists in using an overtravel spring 10 having a stroke that is less than half the value of the stroke C1 required in existing standard thermostatic cartridges. In the case represented in FIG. 6, this illustrates an overtravel taken into account in the construction of the cartridge according to the invention which would be 2 mm instead of 4 mm in an existing construction.
    An overtravel of 2 mm represents a length in place of the spring of 6 mm whereas in a construction according to the state of the art a necessary overtravel would be 4 mm which represents a length in place of 12 mm or a gain of space of the 6 mm cartridge to fully report on the size of the cartridge corresponding to the invention compared to an existing cartridge according to the state of the art. This is obtained by the retractable locking means 11, 12 allowing a temporary stop of limited duration, the adjustment of the intermediate temperature to catch the stroke of overtravel spring 10.
    A gain of 6 mm over the total length of the cartridge 1 is therefore possible by reducing the length of the overtravel spring 10. The value of the overtravel of 2 mm in the case described is sufficient because the temperature adjustment, preferably by displacement of a control lever, is done in two stages by the retractable locking means 11, 12, forming then retractable stop.
    These retractable locking means 11, 12 are effective in passing to an intermediate position of temperature control, preferably the comfort temperature between 38 and 40 ° C, as will be described later. This allows the thermostatic element 8 to stabilize at the comfort temperature or the full cold temperature in order to make up the overtravel of the overtravel spring 10.
    It is advantageous for the intermediate position to be at a substantially average temperature between the two extreme adjustment positions, with an intermediate temperature being approximately in the middle of the extreme position temperatures. Thus, half of the overtravel can be canceled on reaching and then stopping at the intermediate position, which subtracts it from the total overtravel.
    For example, for a 4mm overtravel, which is an overtravel frequently reached for an overtravel spring 10 of a thermostatic cartridge 1, by choosing a judicious intermediate position, it is possible to recover 2 mm overtravel. An overtravel spring 10 which should have a theoretical overtravel of 4mm can therefore be designed to tolerate only 2mm overtravel, resulting in a reduction in its length to reduce the overall height of the cartridge 1.
    The body 2 may comprise a cover 17 housing a control nut 13 in which is inserted a set screw 14 provided with an external thread engaged with an internal thread of the control nut 13. The adjusting screw 14 may be resting against one side against the piston 16 connecting it to the thermostatic element 8. On the other side, a maneuvering square 9a intended to be secured to a control lever 9 acting as a control member may cause the adjustment screw 14 to transform the rotational movement of the operating lever in vertical translation in the body 2 to adjust the temperature.
    In a preferred embodiment of the present invention not shown in the figures, the control member, advantageously in the form of a square maneuver, can be pivotally mounted about an axis passing through the control nut and s' extending perpendicular to a longitudinal axis of the control member. The control nut 13 is rotatable in the cover 17. The operating square 9a acting as a control member is connected with the control nut 13 in rotation and drives a carriage located between the control nut 13 and the movable disk 5. The carriage 29 moves radially and in rotation for driving the movable disk 5.
    In a preferred embodiment, the retractable locking means 11, 12 are in the form of a spring 11 introduced into a housing formed in the control nut 13 and a ball 12. The ball 12 can be screwed to an internal wall of the cover 17 being biased by the spring 11 projecting from the control nut 13 to penetrate into a groove carried internally by the cover 17 in the intermediate position of the control member 9a. Other systems can be put into practice for controlling the erasure of the retractable stop outside the handle.
    In a preferred practical case, the cold temperature extreme position of a mixed fluid leaving the cartridge 1 may be about 15 ° C. The extreme position of hot temperature can be 50 ° C and the intermediate temperature substantially median at these two temperatures cold and hot can be a comfort temperature between 38 or 40 ° C higher than 23 to 25 ° with respect to extreme cold temperature and 10 to 12 ° C below the hot temperature. This is not limiting. The invention also relates to a thermostatic mixing valve equipped with such a cartridge. The mixing valve comprises a control lever 9 flow and mixed temperature of the fluid. This control lever 9, visible in FIG. 2, is integral with the control member 9a of the cartridge 1.
    In a method of opening a thermostatic mixing valve comprising a cartridge 1 according to the present invention as well as adjusting the temperature of the mixed fluid leaving the cartridge 1, this temperature can be set between an extreme cold temperature and a maximum hot temperature Extreme standardized in France 50 ° C to avoid burns including children. The valve opening and the temperature adjustment of the mixed fluid leaving the cartridge 1 is done by the action of the hand of a user on the control lever 9 transmitting this action to the control member 9a carried by the cartridge 1 .
    According to the invention, when the control lever 9 is actuated between extreme hot and cold temperatures, while reducing the temperature, the control lever 9 is temporarily blocked at the intermediate value and exerts a resistance against its actuation. desired by the user, this resistance being perceptible by the user, this during the transition to the intermediate position of the control lever 9 corresponding to a mixed fluid temperature between the two extreme temperatures.
    This blocking occurs during a temperature descent adjustment of a hot temperature, for example the maximum hot temperature 50 ° C, to an intermediate temperature, for example the comfort temperature to 40 ° C.
    This blocking or this resistance can nevertheless be overcome by the user who then exerts a slightly stronger pressure on the control lever 9. It may also be possible to provide an unlocking means other than a pressure on the control lever 9 The important thing is that a sufficiently long stop, for example of the order of one second, is obtained at this intermediate position so that the overtravel of the overtravel spring 10 is sufficient to accept the 2mm overgram that there is between the maximum warm temperature and the intermediate or comfort temperature
    This blocking or resistance may be as small as possible compatible with the response time of the thermostatic element. The use of a thermostatic element with a very short response time can be envisaged in this case, for example a last generation element with a mixture of wax and film copper powder or expanded graphite to improve the thermal conductivity of the thermostatic mixture, therefore the reaction time of the thermostatic element and to reduce the stopping time at the intermediate temperature.
    Then, for the lowering of the temperature of the intermediate temperature, for example a comfort temperature of 38 or 40 ° C, to a minimum cold temperature, for example 23 or 25 ° C, it is carried out an unlocking of the retractable locking means 11 , 12 by the user. This can be done just by performing a new operation of the control lever 9 with, if necessary, starting from this new operation, the imposition of a higher force of actuation on the control lever 9.
    Alternatively, it can be used a means for retracting the locking means 11, 12 independent of the control lever 9, for example a user-activated push button when it wants to resume the operation of the control lever 9 .
    To the position of maximum hot temperature, it can be provided a fixed stop to provide child safety anti-burn that no longer allows an actuation of the control lever 9 in the direction of a temperature increase of the mixed fluid coming out of the cartridge 1. However, this fixed stop has a function other than the blocking means 11, 12 according to the present invention.
    According to one embodiment of the invention, in a first step, from the maximum hot temperature to the intermediate temperature, advantageously the comfort temperature between 38 and 40 ° C, it is observed a stop of about one second at this temperature of comfort, stopping which is caused by the retractable locking means 11, 12. The stopping time depends on the release force of the retractable stop system by action on the control lever 9.
    In a second step of the intermediate position, advantageously from the comfort temperature to the full cold temperature, after forcing or retraction of the locking means 11, 12, an overtravel of 2 mm is made sufficient to accept the stroke of the piston of the thermostatic element between these two temperatures.
    In fact, the displacement of the control lever 9 is in a discontinuous manner from the maximum hot temperature to the full cold temperature with a brief stop of the order of one second at an intermediate temperature, preferably the comfort temperature. from 38 to 40 ° C, and then from the intermediate temperature to the cold full temperature.
    Additional features of the present invention will now be detailed.
    As can be seen in FIGS. 1 and 2, the overtravel spring 10 can be housed radially inside a hub 18 forming part of the regulating slide 7.
    As can be seen in FIGS. 3 and 4, the mobile disc 5 may comprise at least one hot fluid passage 24 adapted to put in communication the inlet passage (s) and the hot fluid outlet passage (s) of the fixed disc. 4 and at least one cold fluid passage 23 adapted to put in communication the inlet passage or passages and the hot fluid outlet passages of the fixed disk 4.
    With reference to FIG. 3, the fixed disc 4 comprises, for the same cold or hot fluid, two inlet passages 20a and 22a separated from each other and two outlet passages 19s and 21s separated from one another. The inlet passages 20a and 22a and the outlet passages 19s and 21s for the same cold or hot fluid can be distributed on the fixed disk 4 alternately, advantageously in the form of a portion of concentric rings in the center of the cartridge.
    Still facing FIG. 3, on the fixed disk 4, the inlet passages 20a and 22a and the outlet passages 19s and 21s are each two in number per cold or hot fluid.
    These fluid passages are sized to have the largest and most uniform fluid flow section in all temperature control positions.
    There can therefore be 2x4 openings in the fixed disk 4 of a cartridge according to the present invention instead of 2 x5 openings in a fixed disk as realized in the state of the art.
    The cartridge 1 may have at least two flat seals of metal-based and overmolded rubber form. These seals replace conventional rubber seals. This further reduces the diameter of the cartridge to reach for example 40mm.
    Figure 5 shows a longitudinal sectional view of a thermostatic element 8 forming part of the cartridge according to the present invention. In this figure, it can be seen the thermosensitive portion 25a or thermostatic portion formed of a reservoir containing a mixture of wax and copper powder or graphite.
    The thermosensitive part 25a is closed inside the thermostatic element 8 by a deformable membrane 27 transmitting the expansion or retraction of the wax to the piston 16. The piston 16 projects from the thermostatic element 8 while being partially inserted in a guide 26 extending the thermosensitive portion 25 to the piston 16. A shoulder 28 of a cup of the thermosensitive portion 25a is crimped on the guide 26 to achieve the sealing of the wax mixture 25 by means of a rubber membrane 27 .
    FIG. 6 shows a curve representing the stroke of the piston of the thermostatic element as a function of the temperature of the mixed fluid leaving a cartridge according to the present invention. In this figure, the minimum cold temperature of mixed fluid is 15 ° C and corresponds to a piston stroke of about less than 2 mm, with respect to the comfort temperature, for example of the order of 40 ° C.
    The temperature range of comfort ranging from 35 ° C to 45 ° C corresponds to a stroke range of the rod from -0.8 mm to +0.8 mm with a rectilinear increase of the stroke with respect to the temperature in the form of a straight line having a steeper slope of increase of travel for the comfort temperature zone than the slope in the preceding zone between 15 ° C to 35 ° C. The slope in the comfort zone may be 0.15 millimeters per degree Celsius or 0.15mm / ° C in this zone. From the comfort zone, this increase slope of the race remains the same until a maximum hot temperature of about 50 ° C, preferably 53 ° C for which a stroke of 2 mm is reached. Then, from 53 ° C to higher temperatures, for example up to 70 ° C, the increase slope of the stroke weakens to about 0.05mm / ° C for a liquid phase of the wax. The use of a thermostatic element with a fast reaction time can promote the monitoring of the speed / displacement curve of the rod with an overtravel of less than 2 mm in the example presented.
    The speed / displacement characteristics can be verified by a laboratory instrumentation of the cartridge, equipped with displacement sensors and measuring the reaction time of the thermostatic element.
    The spring force of the retractable stop is then adjusted according to the results of the instrumentation in the laboratory.
    This construction described in the invention makes it possible not to alter the reliability of the thermostatic element regardless of the conditions of use because this thermostatic element is never subjected to a blocking expansion with the risk of bursting or shearing of the thermostatic element possible.
    The present invention makes it possible to obtain a particularly effective and resistant thermostatic bath mixer tap. It also removes the non-return valves from conventional bathroom and shower thermostatic mixers as well as the entire flow control valve part required with current technology.
    A reduction in weight and bulk can be achieved for a valve using a cartridge according to the present invention, since the volume of the valve body decreases significantly compared to the known technology of the state of the art.
    The drive system in rotation and translation in the upper part of the cartridge is not detailed because known in the state of the art.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    Claims: 1 Thermostatic cartridge (1) of the type comprising a body (2) inside which are formed a chamber (3) of mixed fluid, a fixed disk (4) with respect to said body (2) and a mobile disk ( 5) relative to the fixed disk (4), the fixed disk (4) being provided with at least two cold inlet passages (20a) and at least two outlet passages (19s) of the cold fluid and two passages of inlet (22a) of the hot fluid and at least two outlet passages (21s) and the movable disk (5) being provided with passages (23, 24) adapted to put in communication the inlet passages (20a and 22a) and outlet (19s and 21s) of the fixed disk (4), thermostatic control means (6) comprising a regulation slide (7) arranged in the chamber (3) of mixed fluid, a thermostatic element (8) located at less partially within the chamber (3) of mixed fluid to which is mechanically connected a regulating slide (7) and a control member control (9a) of a flow rate and a mixed fluid temperature adapted to both rotate and translate the movable disk (5) relative to the fixed disk (4) and to adjust the position of the element thermostatic valve (8) inside the chamber (3) of mixed fluid, the control member (9a) regulating the temperature of the fluid mixed between extreme positions of adjustment respectively corresponding to a minimum cold temperature and a maximum temperature heat of the mixed fluid, an overtravel spring (10) placed inside the drawer to immobilize it in a control phase from a minimum temperature to a maximum temperature with a load of about twice the load of d a control spring (39) and provided to accept an overtravel value necessary in the sudden changes in temperature, characterized in that retractable locking means (11, 12) block tempo (1) adjusting the temperature of the fluid in an intermediate position of the control member (9a) between said two extreme adjustment positions, in this intermediate position to reduce the overtravel by half compared to the overtravel value; necessary.
    [0002]
    Cartridge according to claim 1, wherein the body (2) comprises a cover (17) housing a control nut (13) into which is inserted a temperature adjusting screw (14) provided with an external thread engaged with an internal thread of the control nut (13), the adjusting screw (14) resting on one side against a piston (16) connecting it to the thermostatic element (8), a maneuvering square (9a ) intended to be secured to a control lever (9) serving as a control member driving the adjusting screw (14) in translation in the body (2) on the other side of the piston (16) of the element thermostatic.
    [3" id="c-fr-0003]
    3- cartridge (1) according to claim 2, wherein the retractable locking means (11, 12) are in the form of a spring (11) introduced into a housing arranged in the control nut (13) and a ball (12), the ball (12) being vis-à-vis an inner wall of the cover (17) being biased by the spring (11) projecting from the control nut (13) for penetrate into a groove carried internally by the cover (17) in the intermediate position of the control member (9a).
    [4" id="c-fr-0004]
    4- cartridge (1) according to any one of the preceding claims, wherein the overtravel spring (10) is housed radially inside a hub of the regulating slide (7).
    [5" id="c-fr-0005]
    5. Cartridge (1) according to any one of the preceding claims, wherein the movable disk (5) comprises at least one cold fluid passage (23) adapted to put in communication the two inlet passages (20a) and the two cold fluid outlet passages (19s) of the fixed disk (4) and at least one hot fluid passage (24) adapted to place two inlet passages (22a) in communication with the two outlet passages (21s) of hot fluid of the fixed disc (4).
    [0006]
    6. Cartridge (1) according to claim 5, wherein the fixed disk (4) comprises, for the same cold or hot fluid, two inlet passages (20a and 22a) separated from one another, two passages of the output (19s and 21s) separated from each other, the inlet passages (20a and 22a) and the outlet passages (19s and 21s) for the cold and hot fluids being distributed on the fixed disk (4). ) alternately.
    [7" id="c-fr-0007]
    7. Cartridge (1) according to claim 6, wherein, on the fixed disc (4), the inlet passages (20a and 22a) and outlet (19s and 21s) are each two in number per cold fluid or hot.
    [8" id="c-fr-0008]
    8- Cartridge (1) according to any one of claims 5 to 7, wherein at least the portion of the inlet passages (20a and 22a) and outlet (19s and 21s) has alternating shapes of concentric rings relative to in the center of the fixed disk (4).
    [9" id="c-fr-0009]
    9. Cartridge (1) according to any one of the preceding claims, which has at least two flat seals conforming to the inlet or outlet orifices of hot and cold fluids based on metal and rubber molded.
    [10" id="c-fr-0010]
    10- Thermostatic mixing valve equipped with a cartridge (1) according to any one of the preceding claims, characterized in that it comprises a control lever (9) of the flow rate and the temperature of the mixed fluid, integral with the control member (9a) of the cartridge (1).
    类似技术:
    公开号 | 公开日 | 专利标题
    WO2017097757A1|2017-06-15|Thermostatic single-control cartridge and mixer tap provided with such a cartridge
    EP1634519B1|2009-06-03|Pressure cooker with optimised pressure release
    EP1535553B1|2007-01-24|Pressure cooker with unique actuation device for the decompression and the locking/unlocking
    FR2673992A1|1992-09-18|THERMOSTATICALLY CONTROLLED MIXING TAP AND CARTRIDGE THEREOF.
    EP1844686B1|2010-11-10|Pressure-cooking device with controlled decompression
    WO2017021386A1|2017-02-09|Mixing unit and mixer tap including such a mixing unit
    EP1376292B1|2005-12-28|Single-lever thermostatic cartridge with ceramic discs
    EP1241385B1|2006-03-08|Quarter-turn thermostatic cartridge with concentric motion, with ceramic discs, and mixing tap using such a cartridge
    FR2876433A1|2006-04-14|CARTRIDGE FOR A MIXER FAUCET, FAUCET COMPRISING SUCH A CARTRIDGE AND THERMOSTATIC ASSEMBLY FOR EQUIPPING SUCH A CARTRIDGE
    FR3011646A1|2015-04-10|THERMOSTATIC CARTRIDGE MONOCOMMANDE
    WO2015086749A1|2015-06-18|Thermostatic single-control cartridge
    WO2017137368A1|2017-08-17|Assembly for manufacturing a cartridge for regulating the mixture of cold and hot fluids
    WO2009003994A1|2009-01-08|Shutoff valve integrated into a pressure regulator
    EP1844685B1|2009-09-02|Pressure-cooking device with adjustable set-point and controlled decompression
    FR3071329B1|2019-09-27|CARTRIDGE FOR A MIXER FAUCET
    FR2722244A1|1996-01-12|Temperature controlling three=way valve for heat engine
    WO2021123021A1|2021-06-24|Device for controlling the flow of a fluid
    FR3050510A1|2017-10-27|MIXING UNIT AND MIXER TAP COMPRISING SUCH A MIXING UNIT
    EP3477415B1|2021-04-07|Thermostatic valve
    EP3851719A1|2021-07-21|Cartridge shaped mechanism with timed automatic closure for mixer tap and mixer tap including it
    EP3488311B1|2021-06-02|Mixing unit and mixer tap comprising such a mixing unit
    WO2019228981A1|2019-12-05|Thermostatic cartridge, and mixer tap comprising such a thermostatic cartridge
    WO2019228973A1|2019-12-05|Thermostatic cartridge
    WO2012101049A1|2012-08-02|Water economizing mixer tap
    FR2901004A1|2007-11-16|Rotating adjustment unit control valve for heat engine cooling system, has spiral spring mounted on outlet wheel and with outer and inner buckles subjected to wheel and plastic lower flange, respectively
    同族专利:
    公开号 | 公开日
    WO2017097757A1|2017-06-15|
    GB2560460B|2021-12-15|
    GB2560460A|2018-09-12|
    CN108604101A|2018-09-28|
    DE112016005598T5|2018-09-13|
    US20180364745A1|2018-12-20|
    FR3044782B1|2018-01-12|
    GB201807569D0|2018-06-20|
    CN108604101B|2020-07-28|
    US11175684B2|2021-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2841348A1|2002-06-21|2003-12-26|Vernet Sa|MONO-CONTROLLED THERMOSTATIC CARTRIDGE WITH CERAMIC DISKS|
    DE102005001303A1|2005-01-04|2006-07-13|Hansgrohe Ag|Sanitary distribution valve for switching between water outlets has at least one inlet and two outlets, adjustable control device and adjustment limitation|
    US2079165A|1931-05-08|1937-05-04|Bailey Meter Co|Control system|
    US3067581A|1943-11-04|1962-12-11|Reggio Ferdinando Carlo|Fuel supply system|
    US2943480A|1956-02-22|1960-07-05|Philips Corp|Arrangement for checking the zero constancy of wheatstone impedance measuring bridges|
    US3409039A|1963-04-22|1968-11-05|Murphy Ind Inc G W|Valve member having conically tapered seating surface|
    US3248056A|1963-10-18|1966-04-26|Dole Valve Co|Resiliently seated fluid control valve|
    US4257553A|1978-03-20|1981-03-24|Robertshaw Controls Company|Valve construction and method of making the same|
    EP0010350B1|1978-09-22|1982-01-06|Western Thomson Controls Ltd|Thermostatically controlled valve, method of making same and apparatus for performing the method|
    US4630770A|1985-10-25|1986-12-23|Robertshaw Controls Company|Valve construction and method of making the same|
    US4691861A|1985-10-25|1987-09-08|Robertshaw Controls Company|Valve construction and method of making the same|
    US4763834A|1987-06-25|1988-08-16|Standard-Thomson Corporation|Valve seat structure for automotive thermostatic fluid control valve device|
    JPH0439474A|1990-06-04|1992-02-10|Mitsubishi Electric Corp|Proportional flow control valve|
    TW226429B|1992-07-20|1994-07-11|Toto Ltd|
    US5253617A|1992-09-03|1993-10-19|Capsonic Group Inc.|Reed valve assembly for an intake manifold and method of assembly|
    DE69426027T2|1994-12-09|2001-05-17|Nippon Thermostat Kk|Thermally controlled valve|
    DE19508921A1|1995-03-11|1996-09-12|Mann & Hummel Filter|Plastic housing|
    DE29504952U1|1995-03-23|1996-07-25|Behr Thomson Dehnstoffregler|Valve plate for a thermostatic valve|
    AUPN704895A0|1995-12-11|1996-01-11|Pizzey, Harley A.|Shut-off device|
    DE19716307A1|1997-04-18|1998-10-22|Grohe Armaturen Friedrich|Thermostatically regulated mixing valve|
    JP3218460B2|1998-04-01|2001-10-15|日本サーモスタット株式会社|Bottom bypass structure of thermostat device|
    IT247305Y1|1999-01-15|2002-07-09|Nuova Galatron S R L|ECONOMIZER DEVICE FOR EFREDDA HOT WATER MIXING VALVES.|
    JP4262346B2|1999-01-27|2009-05-13|本田技研工業株式会社|thermostat|
    DE10032354B4|2000-07-04|2011-02-17|Behr Thermot-Tronik Gmbh|Thermostatic valve with electrically heated working element|
    FR2822216B1|2001-03-15|2003-06-20|Vernet Sa|THERMOSTATIC QUARTER CARTRIDGE WITH CONCENTRIC CONTROLS, CERAMIC DISCS, AND MIXER TAP PROVIDED WITH SUCH A CARTRIDGE|
    DE102004002995B4|2004-01-16|2006-07-06|Itw Automotive Products Gmbh & Co. Kg|Thermostatic valve assembly|
    FR2870611B1|2004-05-18|2006-08-25|Vernet Sa Sa|THERMOSTATIC CARTRIDGE FOR CONTROLLING HOT AND COLD FLUIDS AND MIXER FAUCET WITH SUCH A CARTRIDGE|
    FR2876433B1|2004-10-08|2008-04-25|Vernet Sa Sa|CARTRIDGE FOR A MIXER FAUCET, FAUCET COMPRISING SUCH A CARTRIDGE AND THERMOSTATIC ASSEMBLY FOR EQUIPPING SUCH A CARTRIDGE|
    JP4817440B2|2006-06-12|2011-11-16|内山工業株式会社|Thermostat mounting structure|
    FR2904707B1|2006-08-03|2008-12-19|Vernet Sa|THERMOSTATIC CARTRIDGE HAVING CONCENTRIC TEMPERATURE AND FLOW CONTROLS, AND MIXER VALVE EQUIPPED WITH SUCH A CARTRIDGE|
    US20090025809A1|2006-11-15|2009-01-29|Tae Gon Oh|Rotatable faucet with water temperature retaining feature|
    FR2914977B1|2007-04-10|2012-06-22|Vernet|THERMOSTATIC REGULATION ASSEMBLY FOR A FLUID FLOW, AND METHOD FOR MANUFACTURING SUCH ASSEMBLY|
    US9950288B2|2007-10-09|2018-04-24|Cummins Filtration Ip, Inc.|Dripless filter assembly and method for servicing a filtration apparatus with the same|
    CA2727077C|2008-06-25|2013-10-01|Masco Corporation Of Indiana|Centerset faucet with mountable spout|
    IT1391860B1|2008-09-10|2012-01-27|Studio Tec Sviluppo Richerche|PERFECT THERMOSTATIC MIXER|
    DE102008056245A1|2008-11-06|2010-05-20|Itw Automotive Products Gmbh|thermostatic valve|
    US8028936B2|2009-02-17|2011-10-04|Mcdermott Peter|Spray nozzle|
    FR2943148B1|2009-03-11|2011-03-04|Vernet|HEAT CARTRIDGE FOR A THERMOSTATIC ELEMENT AND CORRESPONDING MANUFACTURING METHOD THEREFOR, AND THERMOSTATIC VALVE COMPRISING SUCH A CARTRIDGE.|
    US8250782B2|2009-03-26|2012-08-28|Reebok International Limited|Valve for regulating pressure in a fluid system|
    US20100294707A1|2009-05-21|2010-11-25|Cummins Filtration Ip Inc.|Multi-stage filter cartridge with snap fit filters|
    FR2957395B1|2010-03-11|2013-03-22|Vernet|THERMOSTATIC SLEEVE VALVE|
    JP5392499B2|2010-03-16|2014-01-22|Ｓｍｃ株式会社|Valve structure of fluid pressure equipment|
    WO2011160792A2|2010-06-25|2011-12-29|Schaeffler Technologies Gmbh & Co. Kg|Selectable valve assembly for a vehicle transmission|
    CN201763433U|2010-07-12|2011-03-16|浙江吉利汽车研究院有限公司|Automobile thermostat|
    EP2600046B1|2010-07-27|2021-06-09|Fuji Bellows Co., Ltd|Thermostat device|
    DE102010033564A1|2010-07-27|2012-02-02|Behr Thermot-Tronik Gmbh|thermostat application|
    JP5789094B2|2010-11-08|2015-10-07|日本サーモスタット株式会社|Cooling device for internal combustion engine|
    IT1403610B1|2010-12-22|2013-10-31|Ruga|THERMOSTATIC MIXING VALVE WITH INCORPORATED FLOW DIVERTER|
    CZ27324U1|2010-12-23|2014-09-15|Kirpart Otomotiv Parcalari Sanayi Ve Ticaret A.S.|Thermostat assembly for internal combustion engines|
    JP5912523B2|2011-12-28|2016-04-27|日本サーモスタット株式会社|Fluid control valve|
    JP5023249B1|2012-04-05|2012-09-12|幸雄 大西|Thermo element and thermostat|
    ITMI20121633A1|2012-10-01|2014-04-02|Controlling Saving Energy Italia S R L|THERMOSTAT|
    FR3003046B1|2013-03-07|2015-04-03|Vernet|THERMOSTATIC CARTRIDGE REGULATING HOT AND COLD FLUID TO MELANGER|
    US10544873B2|2013-03-14|2020-01-28|Kohler Mira Limited|Thermostatic valve|
    WO2014193346A1|2013-05-29|2014-12-04|International Engine Intellectual Property Company, Llc|Thermostat|
    FR3015061A1|2013-12-12|2015-06-19|Vernet|THERMOSTATIC CARTRIDGE MONOCOMMANDE|
    FR3016198B1|2014-01-09|2016-01-15|Vernet|THERMOSTATIC VALVE|
    EP3265886A1|2015-03-06|2018-01-10|Huber Cisal Industrie S.p.A.|Mixing valve assembly, tap and plant provided with said valve assembly|
    US10176709B2|2015-04-30|2019-01-08|Honeywell International Inc.|Optical gas meter disconnect|
    FR3039876B1|2015-08-03|2018-03-09|Vernet|MIXING UNIT AND MIXER TAP COMPRISING SUCH A MIXING UNIT|KR102327122B1|2016-12-12|2021-11-16|브이엠알 프로덕츠 엘엘씨|carburetor cartridge|
    FR3071329B1|2017-09-19|2019-09-27|Vernet|CARTRIDGE FOR A MIXER FAUCET|
    FR3094441B1|2019-03-25|2021-04-09|Vernet|Thermostatic cartridge|
    FR3094808B1|2019-04-08|2021-06-25|Vernet|Thermostatic cartridge|
    法律状态:
    2016-12-06| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-09| PLSC| Publication of the preliminary search report|Effective date: 20170609 |
    2017-11-23| PLFP| Fee payment|Year of fee payment: 3 |
    2018-10-19| TP| Transmission of property|Owner name: VERNET, FR Effective date: 20180917 |
    2019-11-20| PLFP| Fee payment|Year of fee payment: 5 |
    2020-11-18| PLFP| Fee payment|Year of fee payment: 6 |
    2021-11-18| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1502536A|FR3044782B1|2015-12-07|2015-12-07|THERMOSTATIC MONOCOMMANDE CARTRIDGE AND MIXER FAUCET WITH SUCH A CARTRIDGE|
    FR1502536|2015-12-07|FR1502536A| FR3044782B1|2015-12-07|2015-12-07|THERMOSTATIC MONOCOMMANDE CARTRIDGE AND MIXER FAUCET WITH SUCH A CARTRIDGE|
    PCT/EP2016/079878| WO2017097757A1|2015-12-07|2016-12-06|Thermostatic single-control cartridge and mixer tap provided with such a cartridge|
    CN201680070145.6A| CN108604101B|2015-12-07|2016-12-06|Thermostatic single-control valve core and mixing faucet with same|
    GB1807569.7A| GB2560460B|2015-12-07|2016-12-06|Thermostatic single-control cartridge and mixer tap provided with such a cartridge|
    DE112016005598.6T| DE112016005598T5|2015-12-07|2016-12-06|UNIQUE THERMOSTATIC CARTRIDGE AND MIXER BATTERY, EQUIPPED WITH A SINGLE CARTRIDGE|
    US15/781,816| US11175684B2|2015-12-07|2016-12-06|Thermostatic single-control cartridge and mixer tap provided with such a cartridge|
    [返回顶部]