Cylinder valve sensor mounting structure and cylinder valve

Abstract

The utility model relates to the technical field of valve structures, in particular to a cylinder valve sensor mounting structure and a cylinder valve, which comprise a temperature sensing element, a first sealing element, a first crimping element, a connector, a second sealing element and a second crimping element. The temperature sensing element is hermetically connected with the valve body connecting hole through a first sealing piece; the temperature sensing element is crimped at one end of the valve body connecting hole through the first crimping piece; the connector is connected with the temperature sensing element; the connector is hermetically connected with the valve body connecting hole through a second sealing piece; and the connector is crimped at the other end of the valve body connecting hole through the second crimping piece. Reliable sealing is achieved through the first sealing piece and the second sealing piece, external impurities are prevented from entering the valve body connecting hole, and the protection performance is improved; the temperature sensing element and the connector are installed through the first crimping part and the second crimping part, the assembling process is convenient and fast, and maintenance and replacement after the temperature sensor breaks down are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve structure technical field especially relates to a bottle valve sensor mounting structure and bottle valve. BACKGROUND

[0002] Fuel cell can convert chemical energy into electric energy directly, has energy conversion efficiency high, pollutes little, fuel source is wide, noise is low, reliability is high and is convenient for maintenance and so on. Fuel cell vehicle-mounted hydrogen storage system usually comprises hydrogenation mouth, high pressure gas cylinder, bottle mouth valve, pressure reducing valve, safety valve, blowdown valve, pressure sensor and pipeline joint etc. Bottle mouth combination valve is the core part of vehicle-mounted hydrogen supply system, and its reliability, sealing, durability plays a vital role to the stable operation of vehicle. Because the molecular weight of hydrogen is minimum, it is the gas that is most likely to leak, therefore needs to strictly control the excess of bottle valve assembly process.

[0003] The bottle valve in the prior art is provided with a temperature sensor, and has the following defects:

[0004] 1) The thermal resistor and the shell are filled with rubber, the thermal conductivity of rubber is poor, which is not conducive to heat conduction, and affects the test accuracy and response time of the temperature sensor;

[0005] 2) The thermal resistor temperature sensing element is exposed to the working medium and directly contacts with the working medium, and has poor pollution resistance;

[0006] 3) Low assembly efficiency and poor maintainability: after the sensor shell and the thermal resistor are assembled into the valve body, the thermal resistor extension lead needs to be crimped or welded with the external connector, which affects the installation efficiency, and the crimping or welding process is easy to produce excess into the bottle valve, which is not conducive to the control of the excess; at the same time, the maintainability is poor, when the temperature sensor fails, the entire sensor module needs to be replaced. UTILITY MODEL CONTENTS

[0007] The utility model provides a bottle valve sensor mounting structure and bottle valve to solve the defects of low assembly efficiency and poor maintainability of the temperature sensor of the bottle valve in the prior art.

[0008] The utility model provides a bottle valve sensor mounting structure, which comprises:

[0009] A temperature sensing element;

[0010] A first sealing element, the temperature sensing element is sealingly connected with the valve body connecting hole through the first sealing element;

[0011] A first crimping element, the temperature sensing element is crimped at one end of the valve body connecting hole through the first crimping element;

[0012] A connector connected with the temperature sensing element;

[0013] A second sealing member, the connector being sealingly connected with the valve body connecting hole through the second sealing member;

[0014] A second pressure connecting member, the connector being pressure connected at the other end of the valve body connecting hole through the second pressure connecting member.

[0015] According to the bottle valve sensor mounting structure provided by the utility model, the first sealing member comprises: a sealing ring, an outer wall of the temperature sensing element is provided with a mounting groove, and the sealing ring is arranged in the mounting groove and sealingly connected with the valve body connecting hole.

[0016] According to the bottle valve sensor mounting structure provided by the utility model, the first sealing member further comprises: a check ring, the check ring is arranged in the mounting groove and in contact with the valve body connecting hole.

[0017] According to the bottle valve sensor mounting structure provided by the utility model, further comprising: a shell, the temperature sensing element is fixed in the shell through epoxy glue.

[0018] According to the bottle valve sensor mounting structure provided by the utility model, the first pressure connecting member comprises: a compression nut, an outer wall of the shell is provided with a stepped groove, and the compression nut is arranged in the stepped groove and used for compressing and fixing the shell in the valve body connecting hole.

[0019] According to the bottle valve sensor mounting structure provided by the utility model, the second sealing member comprises: a waterproof sealing plug, the waterproof sealing plug is arranged on the outer side of the connector and sealingly connected with the valve body connecting hole.

[0020] According to the bottle valve sensor mounting structure provided by the utility model, the second pressure connecting member comprises: a compression nut, an outer wall of the shell is provided with a stepped groove, and the compression nut is arranged in the stepped groove and used for compressing and fixing the shell in the valve body connecting hole.

[0021] According to the bottle valve sensor mounting structure provided by the utility model, further comprising: a connector assembly, one end of the connector assembly is connected with the temperature sensing element, and the other end of the connector assembly is connected with the connector.

[0022] According to the bottle valve sensor mounting structure provided by the utility model, the connector assembly comprises:

[0023] A first connector, the first connector being arranged on the temperature sensing element;

[0024] A second connector, the second connector being arranged on the connector and being capable of being plug-connected with the first connector.

[0025] The utility model further provides a bottle valve, comprising: the bottle valve sensor mounting structure provided by the utility model.

[0026] The utility model provides a bottle valve sensor mounting structure, it includes: temperature sensing element, first sealing piece, first pressure joint, connector, second sealing piece and second pressure joint. Temperature sensing element is connected hole sealing connection with valve body through first sealing piece, temperature sensing element is pressure joint in one end of valve body connecting hole through first pressure joint, connector is connected with temperature sensing element, connector is connected hole sealing connection with valve body through second sealing piece, connector is pressure joint in the other end of valve body connecting hole through second pressure joint. The utility model provides a bottle valve sensor mounting structure, realizes reliable sealing through first sealing piece and second sealing piece, prevents the impurity of outside from entering valve body connecting hole, improves the protection performance, temperature sensing element and connector are installed through first pressure joint and second pressure joint, and the assembly process is convenient and fast, avoids welding or pressure joint wire again in the installation process, can avoid welding or pressure joint wire in the bottle valve assembly process, thereby avoids the generation of redundant material, and also convenient for the maintenance and replacement after temperature sensor failure.

[0027] Further, the utility model provides a bottle valve, because it includes bottle valve sensor mounting structure in the foregoing embodiment of the utility model, therefore, has same advantage as above. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the utility model or prior art, below will to the drawing needed to be used in the embodiment or prior art description a simple introduction, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0029] Fig. 1 It is the structure schematic view of bottle valve sensor mounting structure provided in one embodiment of the utility model.

[0030] Fig. 2 It is the structure schematic view of temperature sensing element assembly provided in one embodiment of the utility model.

[0031] Fig. 3 It is the structure schematic view of connector assembly provided in one embodiment of the utility model.

[0032] Reference signs:

[0033] 100: temperature sensing element assembly;101: temperature sensing element;102: epoxy glue;103: shell;104: sealing ring;105: baffle ring;106: first connector;200: compression nut;300: connector assembly;400: valve body;500: connector assembly;501: connector;502: waterproof sealing plug;503: compression nut;504: second connector. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be clearly and completely described below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] In the description of the present embodiment, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present embodiment and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present embodiment.

[0036] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present embodiment, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0037] In the present embodiment, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For the person skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0038] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature can be "below", "under" and "under" the second feature, which can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] The application is described below in combination with Figs. 1-3 The utility model discloses a bottle valve sensor mounting structure. The bottle valve sensor mounting structure includes: temperature sensing element 101, first sealing piece, first pressure joint, connector 501, second sealing piece and second pressure joint.

[0040] Among them, temperature sensing element 101 is sealedly connected with valve body connecting hole through first sealing piece, temperature sensing element 101 is pressed in one end of valve body connecting hole through first pressure joint, connector 501 is connected with temperature sensing element 101, connector 501 is sealedly connected with valve body connecting hole through second sealing piece, connector 501 is pressed in the other end of valve body connecting hole through second pressure joint.

[0041] Specifically, temperature sensing element 101 can adopt thermistor, it is temperature sensing element 101 of temperature sensor, can detect bottle valve temperature. Temperature sensing element 101 of temperature sensor is installed at the connecting hole of bottle valve valve body 400, and a through hole (i.e. valve body connecting hole) is set up in the inside of valve body 400, and the inside of gas cylinder is communicated with the outside of gas cylinder. Temperature sensing element 101 is connected with connector 501, and temperature sensing element 101 is at least partially exposed to the outside of one end of valve body connecting hole, and connector 501 is at least partially exposed to the outside of the other end of valve body connecting hole.

[0042] The function of the first sealing piece is to ensure the sealed connection of the temperature sensing element 101 and the valve body connecting hole, and the function of the second sealing piece is to ensure the sealed connection of the connector 501 and the valve body connecting hole. The reliable sealing is realized by the first sealing piece and the second sealing piece, which prevents foreign matters from entering the valve body connecting hole and improves the protection performance.

[0043] The function of the first pressure joint is to press the temperature sensing element 101 tightly in the valve body connecting hole after the temperature sensing element 101 is inserted into the valve body connecting hole, and the function of the second pressure joint is to press the connector 501 tightly in the valve body connecting hole after the connector 501 is inserted into the valve body connecting hole.

[0044] The above assembly process is as follows:

[0045] The connector 501 penetrates into the valve body connecting hole, the temperature sensing element 101 is connected with the connector 501 through the connector assembly 300 from the other end, then the temperature sensing element 101 is pressed and fixed on the valve body through the first pressing member, and finally the connector 501 is pressed on the valve body 400 through the second pressing member. The assembling process is convenient and fast, welding or pressing of the wire in the installation process can be avoided, welding or pressing of the wire in the bottle valve assembling process can be avoided, thereby avoiding generation of the excess, and maintenance and replacement after failure of the temperature sensor are facilitated.

[0046] When the temperature sensor fails, the temperature sensing element 101 and the connector 501 can be quickly separated by removing the pressing member and the connector assembly 300, so that replacement and maintenance are facilitated.

[0047] The bottle valve sensor mounting structure provided by the utility model, through the first sealing member and the second sealing member, reliable sealing is realized, foreign matters are prevented from entering the valve body connecting hole, and the protection performance is improved; the temperature sensing element 101 and the connector 501 are installed through the first pressing member and the second pressing member, the assembling process is convenient and fast, welding or pressing of the wire in the installation process can be avoided, welding or pressing of the wire in the bottle valve assembling process can be avoided, thereby avoiding generation of the excess, and maintenance and replacement after failure of the temperature sensor are facilitated.

[0048] In one of the embodiments of the utility model, the first sealing member comprises a sealing ring 104, the outer wall of the temperature sensing element 101 is provided with a mounting groove, the sealing ring 104 is arranged in the mounting groove and is sealingly connected with the valve body connecting hole. The first sealing member further comprises a check ring 105, the check ring 105 is arranged in the mounting groove and is in contact with the valve body connecting hole. Specifically, during the process of arranging the temperature sensing element 101 in the valve body connecting hole, the check ring 105 provides axial limiting for the temperature sensing element 101, and the sealing ring 104 relies on its elasticity and compression deformation to achieve the sealing effect under the extrusion of the valve body connecting hole.

[0049] In one of the embodiments of the utility model, the bottle valve sensor mounting structure further comprises: a shell 103, the temperature sensing element 101 is fixedly sealed in the shell 103 through epoxy glue 102. In this embodiment, the temperature sensing element 101 is fixedly sealed in the shell 103 through epoxy glue 102, instead of the rubber filling of the thermal resistor and the shell 103 in the prior art, on the one hand, the epoxy glue 102 has good heat conduction performance, improves the sensor test precision and reduces the response time, on the other hand, the temperature sensing element 101 does not directly contact with hydrogen, so it is not easy to be polluted by impurities and has long service life.

[0050] In one of the embodiments of the utility model, the first pressure joint comprises: a compression nut 200, the outer wall of the shell 103 is provided with a stepped groove, the compression nut 200 is arranged in the stepped groove and compresses and fixes the shell 103 in the valve body connecting hole. In this embodiment, the compression nut 200 is sleeved on the stepped groove of the shell 103, and the shell 103 and the temperature sensing element 101 are compressed and fixed in the valve body connecting hole through the compression nut 200.

[0051] In one of the embodiments of the utility model, the second sealing member comprises: a waterproof sealing plug 502, the waterproof sealing plug 502 is sleeved on the outer side of the connector 501 and is sealingly connected with the valve body connecting hole. In this embodiment, the waterproof sealing plug 502 can effectively prevent liquid from entering the valve body connecting hole.

[0052] In one of the embodiments of the utility model, the second pressure joint comprises: a compression screw sleeve 503, the compression screw sleeve 503 is sleeved on the outer side of the connector 501 and compresses the second sealing member in the valve body connecting hole. In this embodiment, the compression screw sleeve 503 is sleeved on the outer side of the connector 501 and is located on the outer side of the waterproof sealing plug 502 in the axial direction, and the waterproof sealing plug 502 is compressed in the valve body connecting hole through the compression screw sleeve 503, so that the sealing effect is guaranteed.

[0053] In one of the embodiments of the utility model, the bottle valve sensor mounting structure further comprises: a connector assembly 300, one end of the connector assembly 300 is connected with the temperature sensing element 101, and the other end of the connector assembly 300 is connected with the connector 501. Specifically, the connector assembly 300 comprises: a first connector 106 and a second connector 504. The first connector 106 is arranged on the temperature sensing element 101; the second connector 504 is arranged on the connector 501 and can be plugged with the first connector 106. Preferably, the first connector 106 is a female connector, the second connector 504 is a male connector, and the two can be plugged.

[0054] As Fig. 2 and Fig. 3As shown, the shell 103, the temperature sensing element 101, the sealing ring 104, the blocking ring 105, the first connector 106 and the like constitute the temperature sensing element assembly 100; the connector 501, the compression sleeve 503, the waterproof sealing plug 502, the second connector 504, the wire and the like constitute the connector assembly 500.

[0055] The utility model discloses still provide a kind of bottle valve.The bottle valve includes: bottle valve sensor mounting structure in the utility model embodiment.

[0056] The utility model provides a kind of bottle valve, because it includes bottle valve sensor mounting structure in the above embodiment of the utility model, therefore, have same advantage as above.

[0057] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment. Those skilled in the art can understand and implement without creative labor.

[0058] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A bottle valve sensor mounting structure characterized by, The temperature sensing element (101) is sealed and connected with the valve body connecting hole through a first sealing element. The temperature sensing element (101) is crimped at one end of the valve body connecting hole through a first crimping element. A connector (501) is connected with the temperature sensing element (101). The connector (501) is sealed and connected with the valve body connecting hole through a second sealing element. The connector (501) is crimped at the other end of the valve body connecting hole through a second crimping element. The first sealing element comprises a sealing ring (104), an outer wall of the temperature sensing element (101) is provided with a mounting groove, and the sealing ring (104) is arranged in the mounting groove and sealed and connected with the valve body connecting hole. The first sealing element further comprises a check ring (105), which is arranged in the mounting groove and in contact with the valve body connecting hole.

2. The bottle valve sensor mounting structure according to claim 1, characterized by Further comprising:

3. The bottle valve sensor mounting structure according to claim 2, characterized by A shell (103), and the temperature sensing element (101) is glued and sealed in the shell (103).

4. The bottle valve sensor mounting structure according to claim 1, characterized by The first crimping element comprises a compression nut (200), an outer wall of the shell (103) is provided with a stepped groove, and the compression nut (200) is arranged in the stepped groove and tightly fixes the shell (103) in the valve body connecting hole. The second sealing element comprises a waterproof sealing plug (502), which is sleeved on the outer side of the connector (501) and sealed and connected with the valve body connecting hole.

5. The bottle valve sensor mounting structure according to claim 4, characterized by The second crimping element comprises a compression screw (503), which is sleeved on the outer side of the connector (501) and tightly compresses the second sealing element in the valve body connecting hole.

6. The bottle valve sensor mounting structure of claim 1, wherein Further comprising:

7. The bottle valve sensor mounting structure of claim 1, wherein A plug-in assembly (300), one end of the plug-in assembly (300) is connected with the temperature sensing element (101), and the other end of the plug-in assembly (300) is connected with the connector (501).

8. The bottle valve sensor mounting structure according to any one of claims 1 to 7, characterized by The plug-in assembly (300) comprises: A first plug-in element (106) arranged on the temperature sensing element (101); 9. The bottle valve sensor mounting structure of claim 8, wherein, A second plug-in element (504) arranged on the connector (501) and capable of plug-in cooperation with the first plug-in element (106). The bottle valve sensor mounting structure of any one of claims 1 to 9. ​ 10. A bottle valve characterized by, ​ ​

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