• 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:
    This cartridge (1) comprises a base (4) including first (10) and second (20) separate base portions and axially fixedly superposed on each other, each of the first and second base portions having first (10A, 20A) and second (10B, 20B) opposing axial faces such that the second face of the first base portion and the first face of the second base portion are axially applied against each other; another forming an interface (I) sealing junction between the first and second base portions. The cartridge also includes a thermostatic element (40) and a fluid mixture temperature control spool (30), which is connected to the body (41) of the thermostatic element to be displaced along the axis ( XX) of the base within the first base portion so as to inversely vary the respective flow sections of a first passage (F3) for the first fluid and a second passage ( C3) for the second fluid. This second passage is fed by an inlet orifice (14) of the first base portion, via a channel (C4) for distributing the second fluid around the spool, this distribution channel being formed at the tight junction interface. between the first and second base portions.
    公开号:FR3038742A1
    申请号:FR1556441
    申请日:2015-07-07
    公开日:2017-01-13
    发明作者:Frederic Jager
    申请人:Vernet SA；
    IPC主号:
    专利说明:

    THERMOSTATIC CARTRIDGE FOR CONTROLLING HOT AND COLD FLUIDS
    The present invention relates to a thermostatic cartridge for regulating hot and cold fluids to be mixed, in particular hot and cold water within a sanitary installation.
    In this type of cartridge, the thermostatic regulation is obtained by means of an expandable thermostatic element along an axis, comprising, on the one hand, a piston that is normally fixed with respect to a hollow base of the cartridge and, on the other hand, a body integral with a regulation slide. This spool is axially displaceable inside the base of the cartridge so as to inversely vary the flow sections of the two fluids, known as "hot fluid" and "cold fluid", supplying the fluid. base by a first of its axial sides, in order to mix these fluids in variable proportions to obtain, downstream of the drawer, a mixture, called "mixed fluid" or "mixed fluid", which flows along a part thermosensitive element of the thermostatic element and which leaves the base by its second axial side. By modifying the position of the piston relative to the base, generally by means of an ad hoc adjustment mechanism, the thermostatic control temperature is set, that is to say the balancing temperature around which is regulated. the temperature of the mixed fluid. This type of cartridge advantageously incorporates cold and hot fluid flow control disks sent to the spool, these disks being arranged vertically above the first axial side of the base and being fed with cold and hot fluids via channels. circulation extending from the second side to the first axial side of the base. It is even possible to have only one lever to control both these flow control discs and the aforementioned mechanism of temperature control: in this case, the thermostatic cartridge is qualified as a single control. WO-A-96/26475 provides an example thereof.
    In practice, the movements of the slide between two extreme positions, respectively for which the flow of hot fluid is completely closed and the flow of cold fluid is completely closed, are of the order of a millimeter or less, within the cartridges. of standard dimensions. As a result, the maximum flow rates of hot fluid and cold fluid, which can be admitted into the base of these cartridges, are limited. This limitation of the flows of hot fluid and cold fluid is accentuated by the fact that the arrival of these fluids at the regulating slide is concentrated on respective limited portions of the outer periphery of the slide: indeed, the hot fluids and cold are respectively brought to the drawer having to cross a portion of the base of the cartridge, while taking into account the environment, more or less constrained, in which the base is to install. To circumvent this difficulty, it is known, for example from WO-A-96/26475 mentioned above, to dig, inside the base of the cartridge, peripheral grooves of fluid distribution around the drawer, the arrivals of hot fluid and cold fluid respectively opening into these grooves. However, in practice, this solution tends to reduce the diameter of the internal free volume of the base, in favor of its thickness for digging the aforementioned grooves, which limits in particular the outer diameter of the drawer and therefore limits the maximum flow rates of fluid can be regulated by this drawer. In addition, this solution is expensive to implement because the manufacture of the base is complex: in the case where the base is made by plastic molding, the molding core is necessarily large in diameter to accommodate the presence of retractable pins which are necessary to mold the aforesaid grooves, as well as their junction with the arrivals of hot fluid and cold fluid.
    More recently, WO-A-2014/135614 proposed to distribute the hot and cold fluids around the drawer not by two grooves delimited only by the base, but by, at the same time, a first distribution channel, the farthest axially of the outlet orifice, which is partially delimited by a dedicated portion of the spool, and a second distribution channel, the axially closest to the outlet orifice, which is partially delimited by a fixed insert in the orifice outlet of the base, in particular the part against which the return spring is associated with the thermostatic element. The molding constraints of the base are reduced, allowing to avoid undercuts for the molding of these distribution channels of hot and cold fluids: it is thus possible to make the base in the form of a one-piece piece which is removed axially without using retractable pins in the molding core. This solution makes it possible to flow larger flows through the base to the drawer, but, as regards the second distribution channel mentioned above, this solution remains constrained, particularly in terms of dimensioning and therefore of section. passage of the fluid, by the aforementioned insert, in particular by the radial thickness of this piece.
    The object of the present invention is to provide a cartridge of the type mentioned above, the base remains simple and economical to manufacture, while allowing to promote the flow of high fluid flow rates. For this purpose, the subject of the invention is a thermostatic cartridge for regulating hot and cold fluids to be mixed, comprising: a base, which defines an axis and which includes first and second base portions that are distinct and axially superimposed; fixed on each other, each of the first and second base portions having opposite first and second axial faces so that the second face of the first base portion and the first face of the second base portion are applied axially against each other by forming a sealing junction interface between the first and second base portions, which first base portion defines a first inlet for a first one of the cold and hot fluids, and that a second inlet for the second fluid, the first and second inlet ports opening distinctly on the first face of the first part of e mbase, and which second base portion defines an outlet for a mixture of cold and hot fluids; a thermostatic element, which comprises a piston, connected to the base, and a body, containing a thermally expandable material and disposed in the outlet orifice, the piston and the body being movable relative to each other substantially along the axis under the effect of the expansion of the thermosettable material; and a mixing temperature control spool, which has first and second opposite axial faces, respectively turned towards the first face of the first base portion and towards the second face of the second base portion, and is connected to the body of the thermostatic element to be displaced substantially axially within the first base portion so as to inversely vary the respective flow sections of a first passage for the first fluid and a second passage for the second fluid, which first passage is defined axially between the first face of the spool and the first base portion and is fed by the first orifice, and which second passage is defined axially between the second face of the slide and the second base portion and is powered by the second port via a distribution channel of the second fluid around the drawer, this distribution channel ion of the second fluid being formed at the sealed interface between the first and second base portions.
    One of the ideas underlying the invention is to leave the traditional design of the monobloc base, recognized for its intrinsic sealing, in favor of a realization of the base in two separate parts, which are superimposed axially on the one on the other and which are fixed permanently to one another at a sealed junction interface, formed by axial application against each other of their respective outer face turned towards each other. 'other. The hot and cold fluids to be regulated by the cartridge according to the invention enter through a first of these two base portions in order to reach the regulating slide, downstream of which the mixture of fluids is discharged via an outlet orifice delimited by the second base part. According to the invention, the incoming fluid, whose passage to the outlet orifice is controlled in opening-closing by the face of the spool facing the second base portion, is distributed around the spool by a distribution channel formed at the junction interface between the first and second base portions: in this way, this distribution channel may have a much larger fluid passage section than if the base was made in one piece. In particular, this distribution channel may be radially very wide, especially in the direction away from the central axis of the cartridge, without worrying about the molding and demolding constraints of the first base portion, it being understood that, after sealing the two base portions to one another, this distribution channel is closed axially by the second base portion. In the continuation of the foregoing considerations, it is understood that the fluid inlet orifice, supplying this distribution channel, can also be provided with a large radial dimension and / or a position greatly offset radially, thereby increasing the cross section. fluid passage in this inlet port.
    According to additional advantageous features of the cartridge according to the invention, taken separately or in any technically possible combination: the distribution channel of the second fluid is delimited, at the same time, by the first face of the second base portion and recessed in the second face of the first base portion; - The distribution channel of the second fluid extends around the axis, 360 ° and thus distributes the second fluid all around the drawer; a first circulation channel of the first fluid from the second face of the second base portion to the first face of the first base portion is delimited by, successively, the second base portion and the first base portion; base and passes through the sealed junction interface between the first and second base portions, and a second flow channel of the second fluid from the second face of the second base portion to the first face of the first portion the base plate is also delimited by, successively, the second base portion and the first base portion and passes through the sealed junction interface between the first and second base portions; the second inlet orifice opens mainly, or even exclusively, axially into the distribution channel of the second fluid; the first base portion internally has a substantially cylindrical surface, which is centered on the axis and which extends axially from the second face of the first base portion to the first face of the first base portion, delimiting successively the distribution channel of the second fluid and the second inlet port; the second inlet orifice includes a connection portion between its outlet on the first face of the first base portion and the distribution channel of the second fluid, this connecting portion of the second inlet orifice being further radially spaced from the axis that said outlet; the first base portion internally has a deflection surface of the flow of the second fluid between said outlet and said connection portion; the second face of the first base portion and the first face of the second base portion are, at least for their respective part in contact with each other, substantially planar and extend substantially perpendicularly to the axis; the first face of the second base portion includes an axial bearing seat of the second face of the spool, the second passage being delimited axially between this seat and the second face of the spool; the seat is axially projecting relative to the remainder of the first face of the second base portion; - The first and second base portion are made of plastic material and are welded to one another at their sealed junction interface, in particular by laser welding. The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings, in which: FIG. 1 is an exploded perspective view of a thermostatic cartridge conforming to FIG. the invention; FIG. 2 is a view similar to FIG. 1, showing, at another angle of observation, a base of the cartridge; - Figure 3 is a partial longitudinal section of the cartridge of Figure 1 in the assembled state; and FIGS. 4 and 5 are sections respectively along line IV-IV of FIG. 3 and line V-V of FIG. 4.
    In Figures 1 to 5 is shown a thermostatic cartridge 1 which is arranged around and along a central axis X-X. This cartridge is adapted to equip a mixing valve hot water and cold water, not shown as such in the figures, or, more generally, to equip a sanitary installation.
    For convenience, the following description is oriented relative to the axis XX, considering that the terms "upper", "top" and the like correspond to an axial direction facing the upper part of Figures 3 and 5, while the terms "lower", "low" and the like correspond to an axial direction of opposite direction.
    The thermostatic cartridge 1 comprises an upper housing 2 and a lower base 4, which, in the assembled state of the cartridge, are fixedly joined to one another. The base 4 has a generally cylindrical outer shape, centered on the X-X axis and circular base. As can be seen clearly in FIGS. 1 to 3 and 5, the base 4 comprises mainly two distinct parts which are arranged one above the other along the axis XX, namely an upper part 10 and a lower part 20. Each of these base portions 10 and 20 has an upper outer face 10A, 20A and, axially opposite the latter, a lower outer face 10B, 20B. In the assembled state of the cartridge 1 and thus in the assembled state of the base 4, the base portions 10 and 20 are axially superimposed in a fixed manner on one another, the lower face 10B of the upper part 10 covering the upper face 20A of the lower part 20, being in direct contact with the latter. Thus, as clearly visible in FIGS. 3 and 5, the lower face 10B of the upper part 10 and the upper face 20A of the lower part 20 are applied axially against each other, forming an interface I between the base portions 10 and 20. The interface junction I extends transversely to the axis XX. In the exemplary embodiment considered in the figures, this interface I extends essentially perpendicular to the axis XX, the respective parts, in contact with one another, of the lower face 10B of the part d base 10 and the upper face 20A of the base portion 20 being flat and extending perpendicular to the axis XX.
    As will be explained in more detail below, since the hot and cold water circulate through the base, between the lower face 20B of the lower part 20 and the upper face 10A of the upper part. , the junction interface I is provided in the sealing direction in the sense that the material contact areas between the lower face 10B of the base portion 10 and the upper face 20A of the base portion 20 are sealed, prohibiting the fluid passage through these contact areas. Preferably, for reasons of space in the direction of the axis XX, the sealing of the junction interface I is not made by seals or gaskets, which would be reported axially between the base portions 10 and 20, but this sealing is achieved by a material connection between the base portions 10 and 20. In practice, such a material connection between the base portions 10 and 20 is achieved by the glue or, preferably, by welding the base portions 10 and 20 to one another: thus, according to a preferred embodiment, the base portions 10 and 20 are made of plastic material and are welded to their sealing junction interface, in particular laser welded, the plastics material of one of these base portions 10 and 20 being transparent while the plastic material of the other is opaque to the wavelength of the weld laser age used. Of course, various techniques, other than laser welding, can be envisaged for, at their junction I interface, directly bonding to each other the plastics constituting the base portions 10 and 20, respectively.
    As clearly visible in FIGS. 1, 2, 4 and 5, the upper base portion 10 delimits, over its entire axial dimension, a cold water circulation channel 11 and a hot water circulation channel 12, each these channels connecting one to the other the upper faces 10A and lower 10B of the base portion 10, opening on these upper and lower faces. Similarly, as clearly visible in FIGS. 1, 2 and 5, the bottom base portion 20 delimits, over its entire axial dimension, a cold water circulation channel 21 and a hot water circulation channel 22, each of these channels connecting one to the other the upper faces 20A and lower 20B of the base portion 20, opening freely on these upper and lower faces. As shown in FIG. 5, in the assembled state of the base 4, the cold water circulation channels 11 and 21 are connected directly to each other, through the junction interface I, opening the one in the other at this interface I. It is the same for the hot water circulation channels 12 and 22. In other words, in the assembled state of the base 4, a channel cold water circulation between the lower face 20B of the base portion 20 and the upper face 10A of the base portion 10 is formed jointly by the channels 11 and 21, being delimited by, successively, the parts of 20 and 10 and passing through the interface junction I. Similarly, a hot water circulation channel between the faces 20B and 10A is formed jointly by the channels 12 and 22, being delimited by, successively, the base portions 20 and 10 and crossing the junction interface I.
    As clearly visible in FIG. 2, the upper base portion 10 also delimits an internal free volume V10 which is traversed by the axis X-X, being substantially centered on this axis. On either side and distinctly from this internal volume V10, the base portion 10 further delimits a cold water inlet port 13 and a hot water inlet port 14, which their upper end, each open on the upper face 10A of the base portion 10 while at their lower end, these inlet ports 13 and 14 open into the internal volume V10, the lower end of the orifice 14 is located axially lower than that of the inlet 13, as shown in Figures 3 and 5. The circulation channels 11 and 12 and the inlet ports 13 and 14 are angularly and radially positioned by relative to the XX axis so as not to communicate directly with each other.
    The lower base portion 20 delimits, for its part, a mixing outlet orifice 23, which is substantially centered on the axis XX and which connects the upper and lower faces 20A of the part 20A to the other. base 20, opening on these upper and lower faces. As clearly visible in FIGS. 2 and 5, the circulation channels 21 and 22 and the outlet orifice 23 are positioned angularly and radially with respect to the X-X axis, so as not to communicate directly with each other.
    The internal volume V10 of the base portion 10 opens, downwards, on the lower face 10B of the base portion 10 so that, in the assembled state of the base 4, this internal volume V10 is connected. directly to the outlet orifice 23 of the base portion 20 through the junction interface I, this volume V10 and this outlet orifice 23 opening directly into each other centrally on the axis XX.
    In use, the circulation channels 11 and 21 on the one hand and the circulation channels 12 and 22 on the other hand are designed to be fed respectively with cold water and hot water, from the lower face 20B of the base portion. 20, as indicated by the arrows F1 and C1 in Figure 5. And, after leaving the base 4 by the upper face 10A of its upper base portion 10 and have circulated inside the housing 2 as evoked a little more in detail subsequently, this cold water and hot water are returned from the inside of the housing 2 to the upper face 10A of the base portion 10 so as respectively to feed the inlet ports 13 and 14, as indicated by the arrows F2 and C2 in FIGS. 3 and 5. This cold water and this hot water, flowing downwards respectively into the inlet orifices 13 and 14, then feed the internal volume V10 of the part of base 10, in which they are mixed in the form of a mixed water which, as indicated by arrows M in FIGS. 3 and 5, pass from the internal volume V10 to the outlet orifice 23 through the junction interface I. The mixture cold water and hot water then leaves the base 4, being discharged down the outlet orifice 23.
    Advantageously, in particular to favor the flows of cold water and hot water circulating respectively in the inlet orifices 13 and 14, these inlet orifices 13 and 14 each extend about 180 ° around the axis XX, being diametrically opposed to each other, as clearly visible in FIG.
    As seen in Figures 2, 3 and 5, the internal volume V10 of the base portion 10 is stepped in the direction of the X-X axis, being further extended radially in its lower part than in its upper part. More specifically, in its upper part, the internal volume V10 is delimited by a cylindrical surface 15, which is centered on the axis XX, which is circularly based, and which extends axially downwards from the outer periphery of the lower surface of a wall 16 belonging to the upper part of the base portion 10, this wall 16 axially closing up the internal volume V10. This cylindrical surface extends over 360 ° about the axis XX, being interrupted, around this axis, by the lower outlet of the cold water inlet orifice 13, as shown in the left part of FIG. Figure 3, as well as in the right part of Figure 5.
    In its lower part, the internal volume V10 is delimited by a cylindrical surface 17, which is centered on the axis XX, which has a circular base, and which has a diameter strictly greater than that of the cylindrical surface 15. In the embodiment considered in the figures, the cylindrical surfaces 15 and 17 are connected to one another by a stepped wall 18 which, in its peripheral portion connected to the cylindrical surface 17, is advantageously hollowed upwards. In the direction of the X-X axis, the cylindrical surface 17 extends downwardly to the lower face 10B of the base portion 10, on which this cylindrical surface 17 opens. Around the axis XX, the cylindrical surface 17 extends over 360 °, and this, advantageously, without being interrupted by the hot water inlet orifice 14 at the outlet of the latter in the internal volume V10 : in fact, this inlet 14 opens mainly, or, as here, exclusively axially in the lower part of the internal volume V10, the cylindrical surface 17 extending axially upwards to delimit the wall of the orifice d 14, the farthest radially from the axis XX, as clearly visible in Figures 2 and 3.
    Before describing the other components of the cartridge 1, it will be noted that the staggered shape of the internal volume V10 of the base portion 10 allows this base portion 10 to be easily obtained by molding plastic material, in particular material injected plastic. Indeed, during the manufacture of this base portion 10 by molding, a molding core can be advantageously provided to occupy the internal volume V10 so that, without using a retractable molding pin, the demolding of the part of base 10 consists of a relative translation, downwards, of the core, this demolding being particularly easy in the absence of any undercut.
    Moreover, as can be clearly seen in FIGS. 3 and 5, the diameter of the cylindrical surface 17 is strictly greater than the diameter of the outlet orifice 23, in particular the outlet of the latter on the upper face 20A of the part of FIG. base 20. It is therefore understood that, in the assembled state of the base 4, the lower end of the cylindrical surface 17 is connected to the outlet orifice 23 by a solid part of the upper surface 20A of the part d base 20.
    The cartridge 1 also comprises a drawer 30 which, as clearly visible in FIGS. 3 to 5, has a globally tubular shape, with a circular base and centered on an axis which, in the assembled state of the cartridge, is aligned with the axis XX. This drawer 30 has an upper outer face 30A and a lower outer face 30B, as well as a lateral outer face 30C, which connects the upper and lower faces 30A and 30B to each other. This side face 30C is substantially cylindrical, being centered on the axis XX and having a circular base, its diameter being substantially equal to that of the cylindrical surface 15 of the base portion 10. Inside this face 30C is hollowed out a peripheral groove inside which is received a seal 31.
    The spool 30 is mounted on the base 4, more precisely inside the internal volume V10 of the base portion 10, movably along the axis XX between two extreme positions, namely: an extreme high position , in which the upper face 30A of the slide 30 is in abutment against a seat 19, which is secured to the base portion 10 and the outside of which is fed by the cold water leaving the inlet orifice 13, being noted that, in the embodiment considered here, this seat 19 is delimited by the lower surface of the upper wall 16 of the base portion 10, being provided in axial projection downwards from the rest of this surface lower; and an extreme low position, in which the lower face 30B of the slide 30 is in abutment against a seat 24, which is integral with the base portion 20 and whose outside is fed by the hot water coming out of the 14, being noted that, in the embodiment considered here, this seat 24 is delimited by the upper face 20A of base portion 20, being provided in axial projection upwards from the rest of this upper side 20A.
    The total axial dimension of the slide 30, separating one from the other its opposite faces 30A and 30B, is smaller than the axial distance separating the seats 19 and 24 from one another. Also, when the slide 30 is in its extreme low position, the drawer closes an inlet of hot water inside the seat 24, while opening at most a cold water passage F3, which is delimited axially between the upper face 30A of the drawer 30 and the seat 19. Conversely, when the drawer is in its extreme high position, the drawer closes a cold water intake inside the seat 19, while opening at most a passage of hot water C3 which is delimited axially between the lower face 30B of the slide 30 and the seat 24. Of course, depending on the position of the slide 30 along the axis XX between its extreme high and low positions, the respective flow sections of the cold water passage F3 and the C3 varian hot water passage t in the opposite way, which means that the amounts of cold water and hot water admitted inside the seats 19 and 24 are controlled, in respective inverse proportions, by the slide 30 according to its axial position. In Figures 3 and 5, the drawer 30 occupies an axial position intermediate between its extreme high and low positions.
    Advantageously, the seats 19 and 24 have respective substantially equal diameters, which limits the pressure differentials between the upper 30A and lower 30B faces of the slide 30.
    To ensure the guiding of the movable assembly of the spool 30 in the internal volume V10 of the base portion 10, the lateral face 30C of the spool is received in a substantially adjusted manner inside the cylindrical surface 15, with radial interposition of the joint sealing 31.
    It will be noted that for the cold water admitted inside the seat 19 to join and mix with the hot water admitted inside the seat 24, then forming the aforementioned mixture of cold water and water. hot water flowing downstream of the spool 30 to the outlet orifice 23, the spool 30 delimits internally one or more flow passages 32 connecting to each other its upper faces 30A and lower 30B . This or these flow passages 32, which are visible in Figures 4 and 5, are not limiting of the present invention and will not be described here further.
    Below the sliding and sealed bearing area of the spool 30 against the cylindrical surface 15 of the base portion 10, the hot water from the inlet 14 feeds the seat 24 via a C4 channel. distribution of hot water around the spool 30. This hot water distribution channel C4 is formed at the junction interface I between the base portions 10 and 20: in the embodiment considered in the figures, the distribution channel C4 is delimited, downwards, by the upper face 20A of the base portion 20, more precisely by the solid part of this face 20A extending, radially to the axis XX, from the end bottom of the cylindrical surface 17 to the seat 24, while, upwards, the distribution channel C4 is delimited in the lower face 10B of the base portion 10, more precisely by the cylindrical surface 17 and by the shouldered wall 18. Thus, the circulating hot water lant in the inlet port 14 flows into the distribution channel C4, being distributed all around the spool 30 as the cylindrical surface 17 extends 360 ° about the axis XX so as to distribute feeding the hot water passage C3 over the entire outer periphery of the drawer. Insofar as the diameter of the cylindrical surface 17 can be dimensioned to a large value, without being constrained by manufacturing difficulties of the base 4 if it had been made in one piece, it is understood that the section passage of hot water in the distribution channel C4 may be particularly important, thus promoting the flow of a high flow of hot water through the base 4.
    In the continuation of the foregoing considerations, because the hot water inlet orifice 14 opens mainly, or even exclusively axially in the distribution channel C4, being delimited by the cylindrical surface 17 with a large diameter, one Advantageously, this inlet orifice 14 also has a large passage section for the hot water. In particular, as in the exemplary embodiment considered in the figures, the inlet orifice 14 may advantageously have its major part 14.1, connecting its upper outlet to the distribution channel C4, more radially spaced from the axis XX than its upper outlet, the radial position of the latter being constrained by the presence of sealing elements on the upper face 10A of the base portion 10 and / or by the specific connection of this upper face 10A to the interior fittings of the 2. In this case, as an advantageous option, the base portion 10 internally has a surface 14.2 deflection of the flow of hot water between the upper outlet of the inlet 14 and the major part 14.1 of this inlet 14.
    According to an advantageous optional arrangement, which is implemented in the exemplary embodiment considered in the figures, a cold water distribution channel F4 around the drawer 30 may be provided above the sliding support zone and 30 as opposed to the cylindrical surface 15 of the base portion 10. As is clearly visible in FIGS. 3 and 5, this distribution channel F4 is delimited jointly by the upper part of the cylindrical surface 15 and by the upper part of the the lateral face 30C of the slide 30, this upper part of the lateral face 30C being advantageously hollowed as explained in FR-A-2 983 985 to which the reader can refer for more details.
    To drive the slide 30 in displacement and thus to control its axial position, the thermostatic cartridge 1 also comprises a thermostatic element 40 whose body 41, which is centered on the axis XX in the assembled state of the cartridge, is fixedly secured to the drawer 30. This body contains a thermally expandable material which, under the action of the heat of the mixture of hot water and cold water, flowing downstream of the drawer 30 along this body 41, expands and causes the relative displacement, in translation along the axis XX, of a piston 42 of the thermostatic element 40, this piston 42 also being substantially centered on the axis XX in the assembled state of the cartridge.
    The end portion of the piston 42, opposite the body 41, in other words the upper end portion of the piston 42 is, in turn, connected to the base 4 by a mechanical assembly 50, which is housed inside the housing 2 and which, in a manner known per se, is able to adjust the axial altitude of the piston 42 relative to the base 4, independently of the relative position of the body 41: this amounts to saying that this mechanical assembly 50 is designed to control the temperature of the mixture of cold water and hot water leaving the base 4, by adjusting the thermostatic equilibration temperature around which is regulated the temperature of the mixture. Insofar as the embodiment of the mechanical assembly 50 is not limiting to the present invention, this mechanical assembly 50 is not shown in detail in the figures and will not be described here further, however noted that, in the exemplary embodiment considered in the figures, this mechanical assembly 50 is advantageously adapted to also control the flow rate of the mixture of cold water and hot water leaving the base 4, by adjustment, typically by means of of ceramic discs, the communication of the cold water circulation channel 11 with the cold water inlet port 13 and the communication of the hot water circulation channel 12 with the orifice Hot water inlet 14. As a preferential and as is the case in the embodiment considered in the figures, the mechanical assembly 50 includes a single handle 51 allowing the user to control the flow and temperature of the mixture. In this regard, the reader can refer, for example, to the prior art document WO-A-2010/072966.
    The cartridge 1 further comprises a compression spring 60 which, for reasons of visibility, is shown only in FIG. 5, and this only schematically. This spring 60 acts on the slide 30 in opposition to the deployment of the piston 42 relative to the body 41 of the thermostatic element 40, being axially interposed between the slide and the base 4, more precisely between this slide and a part 70 attached to the base portion 20, across the bottom outlet of the outlet 23.
    Of course, the invention is not limited to the embodiment described so far and shown in the figures, various variants and options that can be envisaged. As examples: - rather than being projecting from the upper face 20A of the base portion 20, the seat 19 may be provided substantially flush with the remainder of this upper face 20A; in this case, the lower part of the spool 30 is extended by an ad hoc wall, for example of frustoconical shape diverging downwards, whose lower end can cooperate with the seat for the purpose of opening and closing the passage of hot water C3; and / or rather than extending 360 ° around the X-axis, the hot water distribution channel C4 may have a smaller circumferential extent, to the detriment of a distribution of hot water. around the drawer 30.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    1. Thermostatic cartridge (1) for regulating fluids cold and hot to mix, comprising: - a base (4), which defines an axis (XX) and which includes first (10) and second (20) parts of separate base and axially superimposed in a fixed manner on each other, each of the first and second base portions having first (10A, 20A) and second (10B, 20B) opposite axial faces so that the second face ( 10B) of the first base portion (10) and the first face (20A) of the second base portion (20) are axially applied against each other by forming an interface (I) for sealing connection between the first and second base portions, which first base portion (10) delimits a first inlet port (13) for a first cold and hot fluid, and a second inlet port (14) for the second fluid, the first and second inlet openings opening distinctly on the first face (10A) of the first base portion (10), and which second base portion (20) defines an outlet (23) for a mixture of cold and hot fluids; --a thermostatic element (40), which comprises a piston (42), connected to the base (4), and a body (41), containing a heat-expandable material and disposed in the outlet orifice (23), the piston and the body being movable relative to each other substantially along the axis (XX) under the effect of the expansion of the thermally expandable material; and a spool (30) for regulating the temperature of the mixture, which has first (30A) and second (30B) opposite axial faces, respectively turned towards the first face (10A) of the first base portion (10) and to the second face (20B) of the second base portion (20), and which is bonded to the body (41) of the thermostatic element (40) to be displaced substantially along the axis (XX) to the interior of the first base portion (10) so as to inversely vary the respective flow sections of a first passage (F3) for the first fluid and a second passage (C3) for the second fluid , which first passage (F3) is delimited axially between the first face (30A) of the spool (30) and the first base portion (10) and is fed by the first orifice (13), and which second passage (C3) is delimited axially between the second face (30B) of the spool (30) and the second base portion (20) and is fed by the second orifice (14) via a channel (C4) for distributing the second fluid around the spool, this second fluid distribution channel (C4) being formed at the interface (I) between the first and second watertight joints base parts.
    [2" id="c-fr-0002]
    2. - Cartridge according to claim 1, characterized in that the distribution channel of the second fluid (C4) is delimited, at the same time, by the first face (20A) of the second base portion (20) and recessed in the second face (10B) of the first base portion (10).
    [3" id="c-fr-0003]
    3. - Cartridge according to one of claims 1 or 2, characterized in that the distribution channel of the second fluid (C4) extends around the axis (XX), 360 ° and thus distributes the second fluid around the drawer (30).
    [4" id="c-fr-0004]
    4. - Cartridge according to any one of the preceding claims, characterized in that a first channel (11, 21) for circulation of the first fluid from the second face (20B) of the second base portion (20) until at the first face (10A) of the first base portion (10) is delimited by, successively, the second base portion and the first base portion and passes through the interface (I) sealing junction between the first and second base portions, and in that a second channel (12, 22) for circulating the second fluid from the second face of the second base portion to the first face of the first base portion is also delimited by, successively, the second base portion and the first base portion and passes through the sealed junction interface between the first and second base portions.
    [5" id="c-fr-0005]
    5. - Cartridge according to any one of the preceding claims, characterized in that the second inlet (14) opens mainly, or exclusively, axially in the distribution channel of the second fluid (C4).
    [6" id="c-fr-0006]
    6. - Cartridge according to any one of the preceding claims, characterized in that the first base portion (10) has a substantially cylindrical inner surface (17), which is centered on the axis (XX) and which s' extends axially from the second face (10B) of the first base portion (10) to the first face (10A) of the first base portion, successively delimiting the second fluid distribution channel (C4) and the second inlet port (14).
    [7" id="c-fr-0007]
    7. - cartridge according to any one of the preceding claims, characterized in that the second inlet (14) includes a portion (14.1) of connection between its outlet on the first face (10A) of the first part of base (10) and the distribution channel of the second fluid (C4), this connecting portion (14.1) of the second inlet orifice (14) being further spaced radially from the axis (XX) than said outlet.
    [8" id="c-fr-0008]
    8. - Cartridge according to claim 7, characterized in that the first base portion (10) internally has a surface (14.2) for deflecting the flow of the second fluid between said outlet and said connecting portion (14.1).
    [9" id="c-fr-0009]
    9. - cartridge according to any one of the preceding claims, characterized in that the second face (10B) of the first base portion (10) and the first face (20A) of the second base portion (20). are, at least for their respective part in contact with each other, substantially planar and extend substantially perpendicular to the axis (XX).
    [10" id="c-fr-0010]
    10. - cartridge according to any one of the preceding claims, characterized in that the first face (20A) of the second base portion (20) includes a seat (24) of axial support of the second face (30B) the drawer (30), the second passage (C3) being defined axially between the seat and the second side of the drawer.
    [11" id="c-fr-0011]
    11. - Cartridge according to claim 10, characterized in that the seat (24) is axially projecting relative to the remainder of the first face (20A) of the second base portion (20).
    [12" id="c-fr-0012]
    12. - Cartridge according to any one of the preceding claims, characterized in that the first (10) and second (20) base portion are made of plastic material and are welded to each other at their interface. sealed junction (I), in particular by laser welding.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE112016003071T5|2018-03-22|
    GB201721822D0|2018-02-07|
    US10642290B2|2020-05-05|
    GB2557036A|2018-06-13|
    CN107850906A|2018-03-27|
    FR3038742B1|2018-08-17|
    WO2017005860A1|2017-01-12|
    GB2557036B|2021-06-16|
    CN107850906B|2020-09-08|
    US20180196450A1|2018-07-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2821411A1|2001-02-23|2002-08-30|Vernet Sa|THERMOSTATIC CARTRIDGE WITH CERAMIC DISCS, OF THE QUARTER LATCH TYPE WITH CONCENTRIC CONTROLS, AND MIXER TAP PROVIDED WITH SUCH A CARTRIDGE|
    FR3003046A1|2013-03-07|2014-09-12|Vernet|THERMOSTATIC CARTRIDGE REGULATING HOT AND COLD FLUID TO MELANGER|
    HU217195B|1995-02-24|1999-12-28|KEROX-MULTIPOLÁR Termelő és Kereskedelmi Kft.|Bibcock of temperature control with thermostat|
    US5931374A|1995-06-27|1999-08-03|Masco Corporation|Flow control ports for a thermostatic mixing faucet|
    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|
    FR2940397B1|2008-12-22|2014-06-20|Vernet|SINGLE CONTROL THERMOSTATIC CARTRIDGE AND MIXER VALVE COMPRISING SUCH A CARTRIDGE|
    FR2983525B1|2011-12-02|2013-12-20|Peugeot Citroen Automobiles Sa|KIT INCLUDING A THERMOSTATIC VALVE DEFLECTOR IN A WATER OUTLET BOX|
    FR2983985B1|2011-12-07|2014-12-05|Vernet|THERMOSTATIC CARTRIDGE FOR CONTROLLING HOT AND COLD FLUIDS|
    FR2987095B1|2012-02-22|2014-03-28|Vernet|THERMOSTATIC SLEEVE VALVE|
    CN204164426U|2014-08-15|2015-02-18|珠海市舒丽玛温控卫浴设备有限公司|A kind of single-handle double-control thermostatic valve|FR3072190A1|2017-10-09|2019-04-12|Vernet|ASSEMBLY FOR A THERMOSTATIC CARTRIDGE REGULATING COLD AND HOT FLUIDS TO MIX, AND CORRESPONDING CARTRIDGE|
    FR3094441B1|2019-03-25|2021-04-09|Vernet|Thermostatic cartridge|
    FR3094808B1|2019-04-08|2021-06-25|Vernet|Thermostatic cartridge|
    法律状态:
    2016-07-15| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-13| PLSC| Publication of the preliminary search report|Effective date: 20170113 |
    2017-08-25| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-19| GC| Lien (pledge) constituted|Effective date: 20171212 |
    2018-06-21| PLFP| Fee payment|Year of fee payment: 4 |
    2019-06-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-12-27| GC| Lien (pledge) constituted|Effective date: 20191114 |
    2020-06-17| PLFP| Fee payment|Year of fee payment: 6 |
    2021-06-11| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556441A|FR3038742B1|2015-07-07|2015-07-07|THERMOSTATIC CARTRIDGE FOR CONTROLLING HOT AND COLD FLUIDS|
    FR1556441|2015-07-07|FR1556441A| FR3038742B1|2015-07-07|2015-07-07|THERMOSTATIC CARTRIDGE FOR CONTROLLING HOT AND COLD FLUIDS|
    CN201680040044.4A| CN107850906B|2015-07-07|2016-07-07|Thermostatic valve body for controlling mixing of hot and cold fluids|
    DE112016003071.1T| DE112016003071T5|2015-07-07|2016-07-07|THERMOSTATIC CARTRIDGE FOR CONTROLLING HOT AND COLD FLUIDS TO BE MIXED|
    US15/741,709| US10642290B2|2015-07-07|2016-07-07|Thermostatic cartridge for controlling hot and cold fluids to be mixed|
    PCT/EP2016/066152| WO2017005860A1|2015-07-07|2016-07-07|Thermostatic cartridge for controlling hot and cold fluids to be mixed|
    GB1721822.3A| GB2557036B|2015-07-07|2016-07-07|Thermostatic cartridge for controlling hot and cold fluids to be mixed|
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