• 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:
    Valve comprising a withdrawal circuit (3) comprising a first end (13) upstream and a second end (23) downstream, the circuit (3) withdrawal comprising a member (4) for regulating the flow and / or the pressure of the fluid withdrawn, the valve (1) comprising a movable organ (5) for manual control of the regulating member (4), the valve (1) comprising a device (9) for detecting the position of the organ (5). control device electrically powered by a power supply source (7), the detection device (9) comprising a single mobile discrete magnetic element (12) integral with the control member (5) and a first sensor ( 15) and a second sensor (16) fixedly mounted on the valve body, the first sensor (15) being a magnetic sensor electrically powered by the power source (7), the second sensor (16) being configured to form with the control member (5) a switch interrupting the power supply of the first sensor (15) by the source (7) of power supply when the control member (5) is in at least a first determined position and allowing the power supply of the first sensor (15) by the source ( 7) power supply when the control member (12) is in at least a second predetermined position
    公开号:FR3034837A1
    申请号:FR1552954
    申请日:2015-04-07
    公开日:2016-10-14
    发明作者:Christophe Roland Rezel；Nouredine Kissi
    申请人:Air Liquide SA；LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a valve for a fluid reservoir under pressure and a bottle comprising such a valve. The invention more particularly relates to a valve for a fluid reservoir under pressure comprising a body housing a withdrawal circuit comprising an upstream first end intended to communicate a fluid storage volume under pressure and a second downstream end intended to be connected to an organ. user drawn gas, the withdrawal circuit comprising a flow control member and / or the pressure of the fluid drawn between the upstream and downstream ends, the valve comprising a body e manual control of the regulating member, the organ control member being movably mounted relative to the valve body and cooperating with the regulating member to control the flow rate and / or the fluid pressure admitted to flow from the upstream end to the downstream end according to the position of the valve member. control with respect to the body, the valve comprising a device for detecting the position of the electric powered control member Typically, the valve comprises a power source connected to said detection device. The invention relates in particular to an electrical or electronic system for detecting the position of a movable valve selector provided with a switch making it possible to allow or interrupt the power supply of at least a portion of the detection device by the power source according to the position the position of the control member. The switch can be used to allow or interrupt the power supply of other electrical components of the tap or connected to the tap. US3839662 discloses a position detection device comprising a plurality of fixed discrete sensors cooperating with a plurality of mobile discrete elements (see also WO201216420A or WO2014053371A). These known devices however have drawbacks among which: a complex or expensive structure, measurement inaccuracy for example between two referenced positions, excessive energy consumption, a reaction time too low ... An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
    [0002] To this end, the valve according to the invention, furthermore in accordance with the generic definition given in the preamble above, is essentially characterized in that the detection device comprises a single discrete mobile magnetic element integral with the control member and a first sensor and a second sensor mounted fixed on the body of the valve, the first sensor being a magnetic sensor electrically powered by the power source, the second sensor being configured to form with the device controlling a switch interrupting the power supply of the first sensor by the power source when the controller is in at least a first predetermined position and allowing the power supply of the first sensor by the power source when the control member is in at least a second determined position. This structure makes it possible in particular to guarantee both a low power consumption, a reduced reaction time and a high detection accuracy. Furthermore, embodiments of the invention may include one or more of the following features: the magnetic element comprises a permanent magnet generating a magnetic field, the first sensor being a magnetic field magnetic sensor for determining the position of the control member from a measured value of said magnetic field, the first sensor is a magnetic measuring sensor of at least one of: the angle of the magnetic field, the intensity of the field magnetic field, the orientation of the magnetic field, the second sensor is a magnetic sensor, the second sensor comprises or consists of a magnetic-actuated electric switch, the valve comprises an electronic device for acquiring storage and data processing, in particular an integrated circuit and / or microprocessor and in that the detection device is connected to said electronic device and in that the electronic member is configured to control the power supply or interruption of the power supply of the first sensor by the power source 3034837 3 according to a signal delivered by the second sensor and / or a state of switching of the second sensor, the first sensor is a magnetic sensor for measuring the magnetic field angle of the magnetic element and converting the measured angle value into an electrical signal of a given intensity, for example an electrical voltage. said electrical signal being transmitted to the electronic data storage and processing means and in that the control member (5) is movable in a plurality of determined second distinct positions in which the values of the magnetic field angle of the magnetic element measured are distinct and are converted into electrical signals of respective distinct intensities, The control ring is rotatably mounted about an axis of rotation on the body of the valve, the magnetic element comprises a bipolar magnet, that is to say comprising a north pole and a south pole, the axis passing through the two poles of the magnetic element not being parallel to the axis of rotation of the control member, - the control member is movable between a first so-called "closing" position in which the organ The control unit has the regulator in a closed configuration of the first draw-off circuit and a plurality of second so-called "open" positions in which the control member has the regulator in respective configurations. opening of the first withdrawal circuit to allow fluid to flow from the upstream end to the downstream end with a flow rate and / or a determined pressure, when the control member is in its first closed position, the magnetic stem of the magnetic element element activating the second sensor to trigger the interruption of the power supply of the first sensor by the power supply source, when the control member is at least one of the second positions of opening, the magnetic field of the magnetic element element not activating the second sensor and allowing power supply of the first sensor by the power supply 3034837 4 - the valve comprises an electronic data indicating device (s) relative to the fluid content in a bottle connected to the faucet, the electronic indication device comprising a storage and data processing member and at least one data display connected to the acquisition member storing and processing of data, the position sensor being connected to the data acquisition and data acquisition member for transmitting last a signal representative of the flow rate and / or the fluid pressure imposed by the regulating member, the storage acquisition and data processing member being configured, in response to the reception of this flow signal and / or imposed pressure, to control the display on the display of information relative to the flow rate and / or the fluid pressure imposed by the regulator and / or the operating mode of the valve, - the first sensor is configured to perform periodic measurements with a controlled variable frequency, in particular a first high frequency in a time interval following a detection of a passage of the control member from the first position to a second position and a second reduced frequency lower than the first frequency after a determined time interval and / or when the pressure measured by a pressure sensor in the bottle detects a lower pressure higher than a determined threshold, that is to say that the measurement of the first sensor can be clocked differently according to the time and / or the situation: a fast response time at the opening of the tap, then less often (see very infrequently) when the measured pressure indicates an empty bottle for example, the device for detecting the position of the control member comprises a single mobile detectable element constituted by the magnetic element and two detection elements constituted by the first and second sensors, the first and second sensors are disposed adjacently and offset in a direction transverse to the axis of rotation of the control member and / or offset in a direction parallel to the axis of rotation. rotation of the control member and / or shifted at an angle of rotation relative to the axis of rotation, the axis passing through the two poles of the magnetic element is perpendicular to the axis of rotation. the axis of rotation of the control member; the valve comprises a pressure sensor intended to measure the pressure within the storage volume of a bottle of fluid connected to the valve, the pressure sensor being connected to the organ; for storing and processing data for transmitting a signal representative of the measured fluid pressure to the latter, the storage and data processing member being configured in response to the reception of this signal. pressure, to calculate and display on the display information of autonomy or remaining fluid content, - the storage acquisition and data processing device is configured to automatically calculate and display an update of the autonomy or fluid content information at the reception of a signal from the position sensor indicating a flow rate change and / or the fluid pressure imposed by the regulating member via the control member The invention may also relate to any alternative device or method comprising any combination of the above or below features. The invention also relates to a bottle of pressurized fluid comprising a valve according to any one of the above characteristics or hereinafter. Other features and advantages will appear on reading the description below, with reference to the figures in which: - Figure 1 shows a side view, schematic and partial, illustrating a valve mounted on a pressurized gas cylinder according to a possible embodiment of the invention, - Figure 2 illustrates, schematically and partially, the structure and operation of a portion of the valve of Figure 1, in particular a position detection device of 3 illustrates schematically and partially an example of a measurement curve of a sensor of the detection device of FIG. 2 as a function of the position of the selector, FIGS. vertical sectional views, diagrammatic and partial, of a detail of a valve respectively illustrating two positions of a movable control member (selector) provided with a detection device According to a first exemplary embodiment, FIG. 6 represents a vertical sectional view similar to that of FIG. 4 illustrating a second exemplary embodiment. FIG. 7 represents a schematic and partial side view illustrating an example. possible magnet of the detection device according to the invention, - Figure 8 illustrates, schematically and partially, the structure and operation of a portion of the valve of Figure 1. The valve illustrated in Figures 1 and 8 including typically comprises a body housing a withdrawal circuit 3 comprising an upstream first end 13 for communicating a pressurized fluid storage volume (the inside of the bottle 2) and a second downstream end 23 intended to be connected to an organ user of the gas withdrawn (for example oxygen for a patient, a ventilator, a mask or any other device).
    [0003] The withdrawal circuit 3 comprises a member 4 for regulating the flow rate and / or the pressure of the fluid withdrawn between the upstream and downstream ends 13. This regulating member 4 can comprise a flow and / or pressure regulator comprising, for example, a valve, a system of calibrated orifices or any other suitable device.
    [0004] The valve 1 comprises a member 5 for manual control of the regulating member 4, that is to say a selector operable at least manually. Conventionally, the control member 4 is mounted movably relative to the body of the valve 1, for example in rotation, and cooperates with the regulating member 4 to control the flow rate and / or the fluid pressure admitted to circulate 25 end 13 upstream to the downstream end 23 according to the position of the control member 5 relative to the body. That is to say that the position of the selector 5 modifies (mechanically and / or electrically and / or pneumatically and / or hydraulically) the regulation of the flow rate or of the gas pressure in the circuit imposed by the regulating member 4 .
    [0005] The valve 1 further comprises an electrical device 9 for detecting the position of the control member. For this purpose, the valve 1 comprises a supply source 7 connected to said detection device 9 (and possibly other electrical components). The power source 7 comprising for example an electric battery. According to an advantageous characteristic, the detection device 9 comprises a single movable discrete magnetic element 12 integral with the control member 5 as well as a first sensor 15 and a second sensor 16 fixedly mounted on the body of the valve 1. The first The sensor 15 is preferably a magnetic sensor electrically powered by the supply source 7 or any other equivalent sensor. The second sensor 16 is itself configured structurally and / or functionally to form with the control member 5 a switch. This switch is configured to interrupt the power supply of the first sensor 15 by the power source 7 when the control member 5 is in at least a first predetermined position and allow the power supply of the first sensor 15 by the source 7 power supply when the control member 12 is in at least a second predetermined position. The second sensor 16 is preferably a magnetic sensor. For example, the second sensor 16 comprises or consists of a magnetic actuated electrical switch. For example, the first sensor 15 is a magnetic switch ("Reed Switch"), a flexible blade switch ("ILS") or bimetallic switch or any other suitable sensor. For example, this first sensor 15 is a sensor of the AC011520 type from CELDUC. For example, the switch (via the second sensor 16) interrupts the power supply of the first sensor 15 when the control member 5 is in a closed position of the tap circuit (no flow downstream) and allows the contrary the power supply when the control member 5 is in a circuit open position (gas withdrawal and non-zero flow downstream). This simple and inexpensive structure allows a fast reaction time of the selector position detection 5 and furthermore makes it possible to reduce and control the electrical consumption of the detection device and more generally of the valve. For this purpose the switch and / or the first sensor can control the supply or activation of other electrical components of the valve according to the detected position of the control member 5.
    [0006] Preferably, the magnetic element 12 carried by the control member 5 comprises or consists of a permanent magnet generating a magnetic field. The first sensor 15 is in turn a magnetic magnetic field measuring sensor for determining the position of the control member from a measured value of said magnetic field. The first sensor 15 is for example a magnetic sensor measuring at least one of: the angle of the magnetic field, the intensity of the magnetic field, the orientation of the magnetic field. That is to say that the first sensor 15 detects the precise position of the control member 5 while the second sensor 16 constitutes a switch that controls the supply or not of the first sensor (and possibly other electrical devices) ). That is to say, the power consumption of the device is reduced (first sensor put to sleep or off and other organs) in certain situations including: tap closed, 15 empty bottle, ... The tap 1 includes preferably an electronic storage acquisition and data processing element 17, in particular an integrated circuit and / or a microprocessor. The detection device 9 is connected to said electronic member or integrated therewith. The electronic member 17 may be configured to control the power supply or the interruption of the power supply of the first sensor 15 by the power supply source 7 as a function of a signal delivered by the second sensor 16 and / or a switching state of the second sensor 16. The first sensor 15 is preferably a magnetic sensor 25 for measuring the magnetic field angle of the magnetic element 12 and converting the measured angle value into a signal by electrical example of determined intensity. For example, this signal may include an electrical voltage. The electrical signal can be transmitted to the electronic storage acquisition and data processing member.
    [0007] Thus, the control member 5 can be movable in a plurality of determined second distinct positions in which the values of the magnetic field angle of the measured magnetic element 12 are distinct and are converted into electrical signals of natures or of respective respective intensities 3034837 9. This makes it possible to measure and determine one position among others with a simple structure, few parts and reduced power consumption. FIG. 12 illustrates, for example, a representative signal (abscissa representing for example a voltage value V in Volt) as a function of 5 positions (twelve positions P on the ordinate). The control member 5 is for example rotatably mounted about an axis A of rotation on the valve body. That is to say that the control member is for example a rotary selector. Of course, this structure can be used to detect a position of a movable selector in translation or moving according to other simple or complex movements. For example, the magnetic element 12 comprises or consists of a bipolar magnet that is to say comprising a north pole (N) and a south pole (S), cf. FIG. 7. Preferably, the axis passing through the two poles and perpendicular to the two poles of the magnetic element 12 is not parallel to the axis of rotation of the control element 5. Figures 4 to 6 illustrate two non-limiting examples of integration of such a magnet 12 in a rotary selector. The magnet 12 can be fixed on the selector 12 in a cavity remote from the axis A of rotation. FIG. 4 illustrates the magnet 12 in an adjacent position (opposite) of the second sensor 16 and in a first position 20 relative to the first sensor 15. The position of FIG. 4 can correspond, for example, to a closed position of the valve (selector 5 ) in the closed position of the circuit. In the position of FIG. 5, the selector 5 has been rotated about its axis A (for example 180 degrees), the magnet 12 is in a position relatively more distant from the second sensor 16 and in a second position relative to the first sensor 25 15. In the embodiment of Figures 4 and 5 the magnet 12 and the two sensors 15, 16 are respectively located respectively in separate parallel planes. For example, on the one hand the magnet 12 and on the other hand the two sensors 15, 16 are for example located respectively in two planes perpendicular to the axis A of rotation (for example vertical planes 30 when the tap is in vertical position). For example, the magnet 12 moves in a plane perpendicular to the axis A of rotation and does not contain the sensor (s) 15, 16. The sensor (s) 15, 3034837 10 16 and the magnet 12 may be located at the same distance from the axis A of rotation (or a different distance). In the variant of Figure 6 the magnet 12 may have a different orientation relative to the axis A of rotation. In addition, the one or more sensors 15, 16 may be placed around the magnet (concentrically with respect to the axis A of rotation). That is to say that the magnet 12 moves in a plane perpendicular to the axis A of rotation and can contain the sensor or sensors 15, 16. The sensor or sensors 15, 16 and the magnet 12 can be located at different distances from the axis A of rotation.
    [0008] A multitude of relative positions of the magnet 12 and the sensors are of course possible. For example, the control member 5 is movable between a first so-called "closing" position in which the control member 5 has the regulating member 4 in a closure configuration of the first withdrawal circuit 3 and a plurality second positions called "opening" in which the control member 5 has the regulating member 4 in respective opening configurations of the first withdrawal circuit 3 to allow fluid to flow from the upstream end 13 to the downstream end 23 with respective determined flow rates (or respective pressures).
    [0009] When the control member is in its first closed position, the magnetic field of the magnetic element element 12 activates the second sensor 16 to preferably trigger the interruption of the power supply of the first sensor 15 by the source. 7 power supply. When the control member 5 is at least one of the second open positions 25 (for example one of the selected non-zero flow rates), the magnetic field of the magnetic element element 12 does not activate the second sensor 16 and allows power supply of the first sensor 15 by the power source 7. As illustrated in FIG. 1, the valve 1 can comprise an electronic device 6 for indicating data (s) relative to the fluid content in a bottle connected to the tap 1 such as an intelligent electronic manometer (cf. for example FR2868160A1 or FR2915798A1).
    [0010] The electronic indication device 6 comprises, for example, a data storage and data acquisition member 17 and at least one data display 8 connected to the data acquisition and data acquisition member 17. The position sensor 9 can be connected to the storage acquisition and data processing member 17 in order to transmit to the latter a signal representative of the flow rate and / or the fluid pressure imposed by the regulation member 4. In addition, the storage acquisition and data processing member 7 may be configured, in response to the reception of this flow rate and / or imposed pressure signal, to control the display on the display 8 of FIG. relative flow information and / or the fluid pressure imposed by the regulating member 4 and / or the mode of use of the valve. Similarly, the storage acquisition and data processing unit 17 can be configured to calculate a quantity of remaining gas (autonomy in volume or in duration of use) from this measurement and / or a measurement of pressure within the bottle).
    [0011] The position sensor device of the selector and in particular the switch formed by the second sensor 16 can also selectively control the power supply of the display or adapt its display according to the detected position of the selector 5. Likewise, following the detected position of the selector 5 all or part of the operation of the interface members (display 8, sensors ...) can be modified. Likewise, when the pressure measured within the bottle 2 and / or when the remaining range is below a threshold (empty bottle), the measurement frequency of the sensor (s) or display can be modified automatically. . In particular, the sampling frequency of the first 15 and / or the second sensor 16 can be decreased when the pressure is low (empty or almost empty bottle).
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. A valve for a pressurized fluid reservoir comprising a body housing a withdrawal circuit (3) comprising an upstream first end (13) for communicating a pressurized fluid storage volume and a downstream second end (23) for connection to a user organ of the withdrawn gas, the withdrawal circuit (3) comprising a member (4) for regulating the flow rate and / or the pressure of the fluid withdrawn between the upstream (13) and downstream (23) ends, the valve (1) ) comprising a member (5) for manual control of the regulating member (4), the control member (5) being mounted movably relative to the valve body (1) and cooperating with the regulating member (4) to control the flow rate and / or the fluid pressure admitted to flow from the upstream end (13) to the downstream end (23) according to the position of the control member (5) relative to the body, the valve ( 1) comprising a device (9) for detecting the position of the org an electrically powered control ring (5), the valve (1) comprising a power supply source (7) connected to said detection device (9), characterized in that the detection device (9) comprises a single element (12) ) discrete mobile magnetic integral with the control member (5) and a first sensor (15) and a second sensor (16) fixedly mounted on the valve body, the first sensor (15) being an electrically powered magnetic sensor by the supply source (7), the second sensor (16) being configured to form with the control member (5) a switch interrupting the power supply of the first sensor (15) by the source (7) of power supply when the control member (5) is in at least a first predetermined position and allowing the power supply of the first sensor (15) by the power source (7) when the control member (12) is in at least a second positi we determined.
    [0002]
    2. Tap according to claim 1, characterized in that the element (12) comprises magnetic permanent magnet generating a magnetic field and in that the first sensor (15) is a magnetic sensor 3034837 13 for measuring the magnetic field to determine the position of the control member (5) from a measured value of said magnetic field.
    [0003]
    3. Tap according to claim 1 or 2, characterized in that the first sensor (15) is a magnetic sensor measuring at least one of: the angle of the magnetic field, the intensity of the magnetic field, the orientation of the magnetic field.
    [0004]
    4. Tap according to any one of claims 1 to 3, characterized in that the second sensor (16) is a magnetic sensor.
    [0005]
    5. Valve according to any one of claims 1 to 4, characterized in that the second sensor (16) comprises or consists of a magnetic actuation switch.
    [0006]
    6. Valve according to any one of claims 1 to 5, characterized in that the valve (1) comprises a member (17) electronic storage acquisition and data processing, including an integrated circuit and / or microprocessor and in that the detection device (9) is connected to said electronic member (17) and in that the electronic member (17) is configured to control the power supply or the interruption of the power supply of the first sensor (15) by the source (7) of power supply as a function of a signal delivered by the second sensor (16) and / or a switching state of the second sensor (16).
    [0007]
    Valve according to claims 6 and 3, characterized in that the first sensor (15) is a magnetic sensor for measuring the angle of the magnetic field of the magnetic element (12) and converting the measured angle value into an electrical signal of a given intensity, for example an electrical voltage, said electrical signal being transmitted to the electronic data acquisition and data acquisition device (17) and in that the control element (5) is movable in a plurality of determined second distinct positions in which the values of the magnetic field angle of the measured magnetic element (12) are distinct and are converted into electrical signals of respective distinct intensities.
    [0008]
    8. Tap according to any one of claims 1 to 7, characterized in that the control member (5) is rotatably mounted about an axis (A) of rotation on the valve body (1) 3034837 14
    [0009]
    9. Tap according to claim 8, characterized in that the element (12) comprises a magnetic magnet bipolar that is to say comprising a north pole (N) and a south pole (S) and that the The axis passing through the two poles of the magnetic element (12) is not parallel to the axis of rotation of the control member (5).
    [0010]
    10. Tap according to any one of claims 1 to 9, characterized in that the control member (5) is movable between a first "closure" position in which the control member (5) has the control member (4) in a closure configuration of the first withdrawal circuit (3) and a plurality of second so-called "opening" positions in which the control member (5) disposes the member (4) of regulating in respective opening configurations of the first withdrawal circuit (3) to allow fluid to flow from the upstream end (13) to the downstream end (23) with a flow rate and / or a predetermined pressure and when the control member (5) is in its first closed position, the magnetic field of the magnetic element element (12) activates the second sensor (16) to trigger the interruption of the power supply of the first sensor (15) by the source (7) of food and in that when the control member (5) is at least one of the second open positions, the magnetic field of the magnetic element element (12) does not activate the second sensor ( 16) and allows power supply of the first sensor (15) by the source (7) of power supply.
    [0011]
    11. Valve according to any one of claims 1 to 10, characterized in that the valve (1) comprises a device (6) electronic data indication (s) relative (s) fluid content in a bottle connected to the valve (1), the electronic indication device (6) comprising a data storage and data acquisition member (17) and at least one data display (8) connected to the member (17) storage acquisition and data processing, and in that the position sensor (9) is connected to the data storage and processing acquisition means (17) for transmitting a representative signal to the latter the flow rate and / or the fluid pressure imposed by the regulating member (4), the storage acquisition and data processing member (7) being configured, in response to the reception of this signal. flow rate and / or imposed pressure, to control the display on the display (8) of an informatio relative flow rate and / or fluid pressure imposed by the regulating member (4) and / or the operating mode of the valve.
    [0012]
    12. Bottle of fluid under pressure characterized in that it comprises a valve according to any one of claims 1 to 11.
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    公开号 | 公开日
    EP3280948B1|2019-02-20|
    US20180119887A1|2018-05-03|
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    WO2016162625A1|2016-10-13|
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    法律状态:
    2016-04-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-10-14| PLSC| Search report ready|Effective date: 20161014 |
    2017-04-19| PLFP| Fee payment|Year of fee payment: 3 |
    2018-04-20| PLFP| Fee payment|Year of fee payment: 4 |
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    申请号 | 申请日 | 专利标题
    FR1552954A|FR3034837B1|2015-04-07|2015-04-07|PRESSURE FLUID VALVE AND TANK|FR1552954A| FR3034837B1|2015-04-07|2015-04-07|PRESSURE FLUID VALVE AND TANK|
    PCT/FR2016/050771| WO2016162625A1|2015-04-07|2016-04-05|Valve and pressurized fluid tank|
    US15/564,811| US20180119887A1|2015-04-07|2016-04-05|Valve and pressurized fluid tank|
    EP16720881.8A| EP3280948B1|2015-04-07|2016-04-05|Valve and pressurized fluid tank|
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