Air valve and electronic equipment

Abstract

The utility model relates to an air valve and electronic equipment. The air valve comprises a shell, an electromagnetic assembly, a movable part, a conductive part and an electric connector. The shell is provided with an air outlet hole, the electromagnetic assembly comprises a core body and a coil, the core body and the shell are buckled to form a containing cavity, the core body comprises an air inlet hole and an installation cavity which are arranged at intervals, the air inlet hole and the air outlet hole are arranged at intervals, and the coil is wound around the installation cavity. The movable part is located in the containing cavity and located between the air outlet hole and the air inlet hole. The electric connector is located outside the shell, the conductive part is electrically connected with the coil and the electric connector, the electric connector is used for supplying power to the coil, and the conductive part passes through a gap between the shell and the core body. The electromagnetic assembly is used for driving the movable part to approach and block the air inlet when the coil is powered on, and the air inlet is disconnected from the air outlet. When the coil is powered off, the movable part is away from the air inlet which is communicated with the air outlet. The coil of the air valve and the circuit board are simple in connection and convenient to assemble.

Description

Technical Field

[0001] This application relates to the field of air valve technology, and more particularly to an air valve and electronic device. Background Technology

[0002] As living standards improve, people are paying more and more attention to their health. Blood pressure is one of the key indicators of health, and people demand convenient ways to measure it, which has continuously driven the development of portable electronic blood pressure monitors. The valve is a key component in electronic blood pressure monitors, controlling the opening and closing of the air passage and affecting inflation and deflation. Currently, the connection between the coil and circuit board of the existing valve is difficult, hindering assembly. Utility Model Content

[0003] This application provides an air valve and an electronic device. In this embodiment, the connection between the air valve's coil and the circuit board is simple, facilitating the assembly of the air valve.

[0004] In a first aspect, embodiments of this application provide an air valve. The air valve includes a housing, an electromagnetic component, a movable member, a conductive member, and an electrical connector; the housing has an air outlet; the electromagnetic component includes a core and a coil, the core being fastened to the housing to form a receiving cavity, the core including an air inlet and a mounting cavity spaced apart, the air inlet and the air outlet being spaced apart, and the coil being wound around the mounting cavity; the movable member is located in the receiving cavity and between the air outlet and the air inlet; the electrical connector is located outside the housing, the conductive member electrically connects the coil and the electrical connector, the electrical connector is used to supply power to the coil, and the conductive member passes through the gap between the housing and the core; the electromagnetic component is used to drive the movable member to approach and block the air inlet when the coil is energized, disconnecting the air inlet from the air outlet; when the coil is de-energized, the movable member moves away from the air inlet, and the air inlet and the air outlet are connected.

[0005] This application embodiment makes full use of the gap between the housing and the core, allowing the conductive element to pass through the gap between the housing and the core, thereby realizing the electrical connection between the coil and the electrical connector, so that the electrical connector can supply power to the coil. This eliminates the need to set through holes in the housing or core for the conductive element to pass through, resulting in a simple structure, which helps to reduce the difficulty of connecting the coil and the electrical connector and facilitates assembly.

[0006] In one possible implementation, the core includes a connecting portion, a first core, and a second core. The connecting portion engages with the housing to form the receiving cavity. Both the first core and the second core protrude from the surface of the connecting portion and are located within the receiving cavity. The first core surrounds the second core and together with the second core forms the mounting cavity. The air inlet penetrates the connecting portion and the second core. The conductive element sequentially passes through the gap between the first side of the first core and the housing, the gap between the second side of the first core and the housing, and the gap between the connecting portion and the housing. The first side is the side of the first core away from the connecting portion, and the second side is the side of the first core away from the second core. In this embodiment, the conductive element sequentially passes through the gap between the first side of the first core and the housing, the gap between the second side of the first core and the housing, and the gap between the connecting portion and the housing. This fully utilizes the gap between the housing and the core, and the conductive element extends along a predetermined path, simplifying the installation of the conductive element and facilitating the automation of valve manufacturing.

[0007] In one possible implementation, the first side has a first notch through which the conductive element passes. By housing a portion of the conductive element within the first notch, the space on the first core is fully utilized, avoiding the increase in valve size in the second direction (the arrangement direction of the core and the moving parts) due to the conductive element. This facilitates valve miniaturization and improves valve sealing. Furthermore, the first notch can limit the conductive element's extension path within the valve, contributing to the valve's structural stability.

[0008] In one possible implementation, the air valve includes a first adhesive located in the third gap, the first adhesive covering the conductive element. The connection between the housing and the core can be fixedly connected by the first adhesive, simplifying the connection method. Understandably, after the coil is installed into the mounting cavity, one end of the conductive element is connected to the coil, and the conductive element extends to the outside of the housing along the first side, the second side of the first core, and the edge area of ​​the connection (the central area of ​​the connection is covered by the core, and the edge area of ​​the connection surrounds the central area but is not covered by the core). Adhesive is applied to the edge area of ​​the connection to form the first adhesive, which covers the conductive element, and the housing is then fastened to the connection.

[0009] In one possible implementation, the core includes a support portion that protrudes from the surface of the connecting portion and surrounds the first core. The support portion abuts against the housing, and the first adhesive is located between the first core and the support portion. By providing the support portion, the adhesive can be confined between the first core and the support portion during dispensing and cured to form the first adhesive, preventing the adhesive from flowing before curing and affecting the assembly yield of the housing and the connecting portion.

[0010] In one possible implementation, the support portion has a second notch through which the conductive element passes. By accommodating a portion of the conductive element within the second notch, the space on the support portion is fully utilized, avoiding the increase in the valve's size in the second direction due to the conductive element, thus facilitating valve miniaturization. Furthermore, the second notch can limit the conductive element, restricting its extension path within the valve, which is beneficial for the valve's structural stability.

[0011] In one possible implementation, a first groove is provided on the second side, through which the conductive element passes, and / or, a second groove is provided on the side of the housing facing the second side, through which the conductive element passes. By housing a portion of the conductive element within the first groove, the space on the first core is fully utilized, avoiding the increase in the size of the valve in the first direction (the first direction is perpendicular to the second direction) due to the placement of the conductive element, which is beneficial for the miniaturization of the valve. Furthermore, the first groove can limit the conductive element, restricting its extension path within the valve, which is beneficial for the structural stability of the valve. Similarly, by housing a portion of the conductive element within the second groove, the space on the housing is fully utilized, avoiding the increase in the size of the valve in the first direction due to the placement of the conductive element, which is beneficial for the miniaturization of the valve. Furthermore, the second groove can limit the conductive element, restricting its extension path within the valve, which is beneficial for the structural stability of the valve.

[0012] In one possible implementation, the air valve includes a second colloid located between the conductive element and the core, and / or between the conductive element and the housing. By providing the second colloid, the conductive element is fixed inside the air valve, and the conductive element extends along a predetermined path, which improves the stability of the air valve's internal structure.

[0013] In one possible implementation, when the coil is de-energized, the movable component moves away from the air inlet under the action of the gas. The gas leaks out from the air inlet, and the impact of the gas automatically opens the movable component, moving it away from the air inlet and connecting it to the air outlet for venting. This eliminates the need for other structural components to move the movable component away from the air inlet, resulting in a simple structure and facilitating the miniaturization of the gas valve.

[0014] In one possible implementation, the movable component includes a fixedly connected partition and a seal. At least a portion of the seal is located on the side of the partition facing the air inlet. When the seal is correspondingly positioned to the air inlet, the air valve satisfies the following relationship: (BA)÷2-(FE)÷2>0, where B is the effective sealing dimension of the seal, A is the diameter of the air inlet, F is the inner diameter of the housing, and E is the outer diameter of the partition. This embodiment, by setting (BA)÷2-(FE)÷2>0, ensures that even if the seal and the air inlet are misaligned in the first direction, the seal can still block the air inlet, thus guaranteeing the normal function of the air valve.

[0015] In one possible implementation, the movable component includes a fixedly connected partition and a seal, at least a portion of which is located on the side of the partition facing the air inlet. The core has a recess located between the air inlet and the air outlet. When the coil is energized, the sealing portion of the seal is located within the recess to block the air inlet, thus disconnecting the air inlet from the recess. When the coil is de-energized, the sealing portion moves away from the air inlet, and the recess communicates with the air inlet. The air valve satisfies the following relationship: (CD)÷2-(FE)÷2>0, where C is the maximum outer diameter of the sealing portion, D is the inner diameter of the recess, F is the inner diameter of the housing, and E is the outer diameter of the partition. In this embodiment of the application, by setting (CD)÷2-(FE)÷2>0, even if the seal moves out of the recess and offsets along the first direction or the seal does not move out of the recess but offsets along the first direction, it can be ensured that after the coil is energized, the seal can block the air inlet hole, and the moving part will not be stuck by the surface of the second core away from the connecting part, nor by the inner wall of the recess, which is beneficial to ensuring the normal function of the air valve.

[0016] In one possible implementation, the air valve includes a magnetically responsive elastomer located between the movable member and the core. When the coil is energized, the magnetically responsive elastomer generates a magnetic force and deforms. When the coil is de-energized, the magnetically responsive elastomer returns to its original deformation and drives the movable member away from the air inlet. By incorporating the magnetically responsive elastomer, the driving force for the movable member to move away from the air inlet is improved.

[0017] In one possible implementation, the magnetically responsive elastomer has a third notch through which the conductive element passes. By housing a portion of the conductive element within the third notch, the space on the magnetically responsive elastomer is fully utilized, avoiding the increase in the valve's size in the second direction due to the conductive element, thus facilitating valve miniaturization. Furthermore, the third notch can limit the conductive element's extension path within the valve, contributing to its structural stability. Moreover, the third notch prevents compression of the conductive element during deformation of the magnetically responsive elastomer.

[0018] Secondly, this application provides an electronic device including an airbag and an air valve as described in any of the foregoing embodiments, wherein the airbag is connected to the air valve. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0020] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0021] Figure 2 yes Figure 1 A schematic diagram of one possible structure of the air valve shown;

[0022] Figure 3 yes Figure 2 The diagram shows the exploded structure of the air valve.

[0023] Figure 4 yes Figure 2 A diagram showing a cross-sectional view of the air valve at point AA;

[0024] Figure 5 yes Figure 2 A partial structural diagram of the air valve shown.

[0025] Figure 6 This is a schematic diagram of the air valve in the air-blocking state;

[0026] Figure 7 yes Figure 2 The diagram shows the structure of the core.

[0027] Figure 8 yes Figure 1 Another schematic diagram of the air valve shown;

[0028] Figure 9 yes Figure 1 Another schematic diagram of the air valve shown;

[0029] Figure 10 yes Figure 2Another diagram showing the cross-sectional view of the air valve at point AA;

[0030] Figure 11 yes Figure 1 The diagram shows another structural schematic of the air valve. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be understood that the terms "first," "second," etc., used in this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0033] In the description of this application, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, a mating connection, or an integral connection; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of an electronic device 100. The electronic device 100 can be an electronic blood pressure monitor, or other devices requiring an air valve, such as smartwatches or smart bracelets. The embodiments described in this application are not limited to any particular type. The electronic device 100 may include an air valve 10 and an air bag 20. Exemplarily, the air inlet 123 of the air valve 10 (see...) Figure 2 It can communicate with the air vent of the airbag 20, and the air outlet 111 of the air valve 10 (see...) Figure 2 It can connect to the external environment.

[0036] In some embodiments, the electronic device 100 may further include an air pump 30, a microcontroller 40, and a differential pressure gauge 50. The air pump 30, differential pressure gauge 50, and valve 10 may be mounted on a bracket and are all connected to the airbag 20. In other embodiments, the air pump 30, differential pressure gauge 50, and valve 10 may not be mounted on a bracket. The microcontroller 40 can control the air pump 30 to inflate the airbag 20. When the air pump 30 is operating, the microcontroller 40 controls the valve 10 to close, and the air pump 30 inflates the airbag 20. The microcontroller 40 can control the differential pressure gauge 50 to sense the internal pressure of the airbag 20. After the airbag 20 is inflated, it compresses the blood vessels to achieve blood pressure measurement. After the blood pressure measurement is completed, the microcontroller 40 controls the air pump 30 to stop inflating the airbag 20, and the microcontroller 40 controls the valve 10 to open, thus deflating the airbag 20. The gas venting path within the airbag 20 is as follows: the gas within the airbag 20 passes sequentially through the air vent of the airbag 20, the air inlet 123 of the air valve 10, and the air outlet 111 of the air valve 10 to the external environment. It is understood that the positions of the air valve 10, airbag 20, air pump 30, microcontroller unit 40, and differential pressure gauge 50 are merely schematic representations and can be configured as needed; this embodiment does not limit these configurations.

[0037] Figure 1 The electronic device 100 in this application is only schematic; its size, shape, structure, etc., can be customized as needed. This application does not limit the specific structure of the electronic device 100.

[0038] like Figure 2 , Figure 3 and Figure 4 As shown, Figure 2 yes Figure 1 A schematic diagram of one structure of the air valve 10 is shown. Figure 3 yes Figure 2 The exploded view of the air valve 10 shown is shown below. Figure 4 yes Figure 2 A diagram showing a cross-sectional view of the air valve 10 at point AA. Figure 4 The air valve 10 shown is in the air-venting state, and gas can flow from the air inlet to the air outlet.

[0039] The air valve 10 may include a housing 11, an electromagnetic component 17, a movable component 14, a conductive component 15, and an electrical connector 16. The electromagnetic component 17 may include a core 12 and a coil 13. In this embodiment, the arrangement direction of the core 12 and the movable component 14 is defined as the second direction A2, and the first direction A1 is perpendicular to the second direction A2.

[0040] The housing 11 may be provided with an air vent 111. The housing 11 may be made of plastic, metal, or other materials. When the housing 11 is made of plastic, it is lightweight and low-cost. When the housing 11 is made of metal, it has high structural strength. When the housing 11 is made of metal, it may be made of a non-magnetic metal. The housing 11 may be fastened to the core 12 to form a receiving cavity 112. The core 12 may include spaced-apart air inlets 123 and mounting cavities 1223. For example, the core 12 may include a connecting portion 121, a main body portion 122, and air inlets 123. The connecting portion 121 is fastened to the housing 11 to form the receiving cavity 112. The connecting portion 121 may be a plate-like structure. The connecting portion 121 actually acts as part of the housing of the air valve 10. By fastening the connecting portion 121 to the housing 11, a receiving space for other components can be formed, simplifying the device and simplifying the structure, which is conducive to reducing the volume of the air valve 10 and realizing the miniaturization of the air valve 10.

[0041] In some embodiments, the air valve 10 may include a first colloid 18. The connection portion 121 between the housing 11 and the core 12 can be fixedly connected by the first colloid 18. In other embodiments, the housing 11 and the connection portion 121 can also be fixedly connected by ultrasonic welding or laser welding.

[0042] The main body 122 protrudes from the surface 1211 of the connecting part 121 and is located in the receiving cavity 112. The air inlet 123 passes through the connecting part 121 and the main body 122, and the air inlet 123 and the air outlet 111 are spaced apart. The air inlet 123 and the air outlet 111 can be arranged correspondingly along the second direction A2, or they can be arranged at different positions.

[0043] In some embodiments, the main body 122 includes a first core 1221 and a second core 1222 spaced apart. The first core 1221 surrounds the second core 1222 and together with the second core 1222 forms a mounting cavity 1223. An air inlet 123 penetrates the second core 1222. A connecting portion 121 connects the first core 1221 and the second core 1222. The connecting portion 121, the first core 1221, and the second core 1222 can be an integrally formed structure or a separate structure assembled and fixed to form the core 12.

[0044] See Figure 4 The first core 1221 may include a first side 1224 and a second side 1225. The first side 1224 is the side of the first core 1221 away from the connecting portion 121, and the second side 1225 is the side of the first core 1221 away from the second core 1222.

[0045] In some embodiments, the core 12 includes a support portion 124, which protrudes from the surface 1211 of the connecting portion 121 and surrounds the first core 1221. The support portion 124 is spaced apart from the first core 1221 and abuts against the housing 11. A first adhesive 18 is located between the first core 1221 and the support portion 124. Understandably, by providing the support portion 124, during dispensing, the adhesive can be confined between the first core 1221 and the support portion 124 and cured to form the first adhesive 18, preventing the adhesive from flowing before curing and affecting the assembly yield of the housing 11 and the connecting portion 121.

[0046] In some embodiments, the core 12 can be made of a high-permeability material such as iron, ferrite or steel. This application embodiment does not limit the material of the core 12 and can set it as needed.

[0047] The coil 13 can be wound around the mounting cavity 1223 of the main body 122. Understandably, the coil 13 is located within the receiving cavity 112. The coil 13 can be made of copper or other conductive materials. Exemplarily, when the coil 13 is energized, it can generate a magnetic field, magnetizing the core 12; that is, the coil 13 can cause the core 12 to generate magnetic force. The coil 13 being located in the mounting cavity 1223 achieves a single component enclosing the coil 13, eliminating the need for the core 12 to cooperate with other components to form a mounting slot for the coil 13. This facilitates the installation of the coil 13, reduces the assembly difficulty of the air valve 10, and effectively saves space, contributing to the miniaturization of the air valve 10.

[0048] The movable member 14 is located in the receiving cavity 112 and between the air outlet 111 and the air inlet 123. The movable member 14 can move between the air outlet 111 and the air inlet 123 to make the air outlet 111 and the air inlet 123 connected or disconnected.

[0049] See Figure 4 and Figure 5 , Figure 5 yes Figure 2 The diagram shows a partial structural schematic of the air valve 10. To clearly illustrate the electrical connection between the conductive element 15 and the electrical connector 16, Figure 5 The housing 11 is not shown. An electrical connector 16 is located outside the housing 11. The electrical connector 16 can be a flexible circuit board, etc. The electrical connector 16 can be fixed to the outside of the housing 11 by means of adhesive, soldering, or snap-fit. For example, the electrical connector 16 can be fixed to the outer wall of the housing 11 by a third adhesive 161.

[0050] The conductive element 15 electrically connects the coil 13 to the electrical connector 16, which supplies power to the coil 13. The conductive element 15 passes through the gap 113 between the housing 11 and the core 12. The conductive element 15 can be made of the same material as the coil 13; that is, the conductive element 15 can be a portion extending from the winding of the coil 13, or it can be other conductive structural components. Understandably, the coil 13 is inside the housing 11, the electrical connector 16 is outside the housing 11, a portion of the conductive element 15 is located inside the housing 11, and a portion of the conductive element 15 is located outside the housing 11. The conductive element 15 electrically connects the coil 13 to the electrical connector 16 through the gap 113 between the housing 11 and the core 12. There can be two conductive elements 15: one conductive element 15 electrically connects to one terminal of the coil 13, and the other conductive element 15 electrically connects to the other terminal of the coil 13. This application embodiment does not limit the number of conductive elements 15.

[0051] For example, the conductive element 15 passes sequentially through the gap between the first side 1224 and the housing 11, the gap between the second side 1225 and the housing 11, and the gap between the connecting portion 121 and the housing 11. For distinction, the gap between the first side 1224 and the housing 11 is referred to as the first gap 1131, the gap between the second side 1225 and the housing 11 is referred to as the second gap 1132, and the gap between the connecting portion 121 and the housing 11 is referred to as the third gap 1133. It can be understood that the gap 113 includes the first gap 1131, the second gap 1132, and the third gap 1133.

[0052] See Figure 4 The first adhesive 18 can be located in the third gap 1133, and the first adhesive 18 covers the conductive element 15. Understandably, after the coil 13 is installed into the mounting cavity 1223, one end of the conductive element 15 is connected to the coil 13, and the conductive element 15 extends to the outside of the housing 11 along the first side 1224, the second side 1225 of the first core 1221 and the edge area of ​​the connecting part 121 (the central area of ​​the connecting part 121 is covered by the main body 122, and the edge area of ​​the connecting part 121 surrounds the central area and is not covered by the main body 122). The first adhesive 18 is formed by applying adhesive to the edge area of ​​the connecting part 121, and the housing 11 is fastened to the connecting part 121.

[0053] See Figure 6 , Figure 6 This is a schematic diagram of the air valve 10 in an air-blocking state. The air valve 10 being in an air-blocking state can be understood as gas being unable to flow from the inlet 123 to the outlet 111. The electromagnetic component 17, when the coil 13 is energized, drives the movable part 14 to approach and block the inlet 123 under magnetic force. That is, the movable part 14 moves downwards along the second direction A2, disconnecting the inlet 123 from the outlet 111. Gas cannot flow through the inlet 123 to the outlet 111; in other words, the movable part 14 is attracted down by the magnetic force. (See reference...) Figure 4 When the coil 13 is de-energized, the magnetic field generated by the coil 13 disappears, and the movable part 14 moves away from the air inlet 123. That is, the movable part 14 moves upward along the second direction A2, and the air inlet 123 is connected to the air outlet 111, so that the gas can flow from the air inlet 123 to the air outlet 111.

[0054] This embodiment of the application fully utilizes the gap 113 between the housing 11 and the core 12, allowing the conductive element 15 to pass through the gap 113, thus achieving an electrical connection between the coil 13 and the electrical connector 16. This enables the electrical connector 16 to supply power to the coil 13. This eliminates the need for through holes in the housing 11 or core 12 for the conductive element 15 to pass through, resulting in a simpler structure. It also reduces the difficulty of connecting the coil 13 to the electrical connector 16 and facilitates assembly. The conductive element 15 passes sequentially through the first gap 1131, the second gap 1132, and the third gap 1133, fully utilizing the internal space of the valve 10. The rational design of the conductive element 15's path contributes to the compactness and miniaturization of the valve 10 structure.

[0055] See Figure 1 and Figure 4 In some embodiments, when the coil 13 is de-energized, the movable part 14 can move away from the air inlet 123 under the action of the gas. When the gas in the airbag 20 is released, the gas in the airbag 20 passes through the air hole of the airbag 20, the air inlet 123 of the air valve 10, and the air outlet 111 of the air valve 10 to the external environment in sequence. That is, the gas is released from the air inlet 123. The impact of the gas can automatically open the movable part 14, so that the movable part 14 moves away from the air inlet 123, realizing the connection between the air inlet 123 and the air outlet 111, realizing the release of gas. It is not necessary to use other structural components to move the movable part 14 away from the air inlet 123. The structure is simple and conducive to the miniaturization of the air valve 10.

[0056] See Figure 2 and Figure 3 A dustproof component 114 can be installed at the air outlet 111. The dustproof component 114 can be fixed to the air outlet 111 by means of adhesive, welding, or snap-fit, and / or, the dustproof component 114 can be fixed to the air inlet 123 by means of adhesive, welding, or snap-fit. For example, the dustproof component 114 can be fixed to the air outlet 111 by a fourth adhesive 115. The dustproof component 114 can be embedded inside the housing 11, which is beneficial for the miniaturization of the air valve 10. When the air valve 10 is miniaturized, it becomes more sensitive to particulate matter. The dustproof component 114 can prevent external particles from entering the interior of the air valve 10, thus avoiding affecting the normal function of the air valve 10.

[0057] Understandably, the dustproof component 114 can be a mesh with micropores to block particulate matter without affecting the passage of gas through the dustproof component 114, thus avoiding affecting the flow of gas.

[0058] See Figure 4 and Figure 6 The movable component 14 may include a fixedly connected partition 141 and a sealing component 142. The partition 141 may be a circular thin plate, and the partition 141 may be made of a soft magnetic material capable of conducting magnetism. The partition 141 may be attracted by the magnetic force of the electromagnetic component 17. The partition 141 may also be square or other shapes. The embodiments of this application do not limit the shape, size, etc. of the partition 141.

[0059] At least a portion of the seal 142 is located on the side of the partition 141 facing the air inlet 123. The seal 142 is correspondingly disposed with respect to the air inlet 123. For example, the sealing portion 1421 of the seal 142 is correspondingly disposed with respect to the air inlet 123. The corresponding disposal of the seal 142 with respect to the air inlet 123 can be understood as the centerline of the seal 142 coinciding with the centerline of the air inlet 123 and extending along the second direction A2. The partition 141 may have mounting holes, and a portion of the seal 142 is located in the mounting holes and fixedly connected to the partition 141. Alternatively, the partition 141 may not have mounting holes, and the seal 142 may be fixed to the surface of the partition 141 by means of adhesive or the like. The seal 142 may be made of an elastic material, such as silicone, and the seal 142 may be compressed to block the air inlet 123. When the partition 141 is attracted by the magnetic force of the electromagnetic component 17, it can drive the seal 142 to move, and the seal 142 blocks the air inlet 123.

[0060] See Figure 4 and Figure 6 In some embodiments, the core 12 is provided with a recess 1226, for example, the second core 1222 is provided with a recess 1226, and the recess 1226 can be located between the air inlet 123 and the air outlet 111. When the coil 13 is energized, the sealing part 1421 is located in the recess 1226 to block the air inlet 123, and the air inlet 123 is disconnected from the recess 1226. When the coil 13 is de-energized, the sealing part 1421 moves away from the air inlet 123, and the recess 1226 communicates with the air inlet 123. The sealing part 1421 can be located in the recess 1226, which is beneficial to reduce the size of the air valve 10 in the second direction A2 and realize the miniaturization of the air valve 10. In addition, the recess 1226 can limit the sealing member 142, preventing the moving member 14 from moving in the first direction A1 during the movement along the second direction A2, which would result in poor stability of the air valve 10 structure and failure to effectively block the air inlet 123.

[0061] See Figure 5 , Figure 6 and Figure 7 , Figure 7 yes Figure 2The diagram shows the structure of the core 12. A first notch 1227 may be provided on the first side 1224 of the first core 1221, through which the conductive element 15 passes. By accommodating a portion of the conductive element 15 within the first notch 1227, the space on the first core 1221 is fully utilized, avoiding any increase in the size of the valve 10 in the second direction A2 due to the conductive element 15. This facilitates the miniaturization of the valve 10 and improves its sealing performance. Furthermore, the first notch 1227 can limit the conductive element 15, restricting its extension path within the valve 10, which is beneficial to the structural stability of the valve 10.

[0062] Understandably, when the conductive element 15 passes through the first notch 1227, the conductive element 15 can be flush with the surface 1228 of the first side 1224, or the conductive element 15 can be completely contained within the first notch 1227. Furthermore, in the second direction A2, the conductive element 15 and the surface 1228 of the first side 1224 are spaced apart to prevent the partition 141 from squeezing the conductive element 15 and causing damage when it moves downwards along the second direction A2. Alternatively, the conductive element 15 can protrude from the first notch 1227. In other embodiments, the first core 1221 may not have the first notch 1227.

[0063] See Figure 5 , Figure 6 and Figure 7 The support portion 124 is provided with a second notch 1241 through which the conductive element 15 passes. By accommodating a portion of the conductive element 15 within the second notch 1241, the space on the support portion 124 is fully utilized, avoiding the increase in the size of the air valve 10 in the second direction A2 due to the placement of the conductive element 15, which is beneficial for the miniaturization of the air valve 10. In addition, the second notch 1241 can limit the conductive element 15, restricting its extension path within the air valve 10, which is beneficial for the structural stability of the air valve 10.

[0064] Understandably, when the conductive element 15 is located in the second notch 1241, the conductive element 15 can be flush with the surface 1242 of the support portion 124, or the conductive element 15 can be completely contained within the second notch 1241, and in the second direction A2, the conductive element 15 is spaced apart from the surface 1242 of the first side 1224, or the conductive element 15 protrudes from the second notch 1241. In other embodiments, the support portion 124 may not have the second notch 1241.

[0065] See Figure 5The first notch 1227 and the second notch 1241 are correspondingly provided to narrow the extension path of the conductive element 15 and reduce the length of the conductive element 15. The corresponding arrangement of the first notch 1227 and the second notch 1241 can be understood as follows: taking a circular shape for the connecting part 121, the first core 1221, the second core 1222, and the supporting part 124, the first notch 1227 and the second notch 1241 are arranged radially. The connecting part 121, the first core 1221, the second core 1222, and the supporting part 124 can also be square or other shapes; this embodiment does not limit this.

[0066] See Figure 5 and Figure 6 The conductive element 15 may include a first segment 151, a second segment 152, a third segment 153, and a fourth segment 154 connected in sequence. The first segment 151 is located at the first notch 1227, the second segment 152 is located at the second gap 1132, a portion of the third segment 153 is covered by the first colloid 18, another portion of the third segment 153 is located at the second notch 1241, and the fourth segment 154 is located outside the housing 11 and is electrically connected to the electrical connector 16. The fourth segment 154 may be covered by the third colloid 161.

[0067] like Figure 8 As shown, Figure 8 yes Figure 1 Another schematic diagram of the air valve 10 shown. Figure 8 The air valve shown is Figure 4 The main difference of the air valve shown is that Figure 8 The air valve 10 is provided with a first groove 12291. In some embodiments, the first groove 12291 is provided on the second side 1225 of the first core 1221, and the conductive element 15 passes through the first groove 12291. By accommodating a portion of the conductive element 15 within the first groove 12291, the space on the first core 1221 is fully utilized, and the placement of the conductive element 15 avoids increasing the size of the air valve 10 in the first direction A1, which is beneficial to the miniaturization of the air valve 10. In addition, the first groove 12291 can limit the conductive element 15, restricting the extension path of the conductive element 15 within the air valve 10, which is beneficial to the structural stability of the air valve 10.

[0068] like Figure 9 As shown, Figure 9 yes Figure 1 Another schematic diagram of the air valve 10 shown. Figure 9 The air valve shown is Figure 4 The main difference of the air valve shown is that Figure 9 The air valve 10 is provided with a second groove 12292. In some embodiments, the housing 11 is provided with a second groove 12292 on the side facing the second side 1225, and the conductive element 15 passes through the second groove 12292.

[0069] By housing a portion of the conductive element 15 within the second groove 12292, the space on the housing 11 is fully utilized, avoiding any increase in the size of the valve 10 in the first direction A1 due to the placement of the conductive element 15, which is beneficial for the miniaturization of the valve 10. Furthermore, the second groove 12292 can limit the conductive element 15, restricting its extension path within the valve 10, which is beneficial for the structural stability of the valve 10.

[0070] In other embodiments, a first groove 12291 may be provided on the core 122 and a second groove 12292 may be provided on the housing 11. The conductive element 15 may be located in both the first groove 12291 and the second groove 12292. The portion of the conductive element 15 protruding from the first groove 12291 is located in the second groove 12292.

[0071] See Figure 8 and Figure 9 The air valve 10 may include a second colloid 19, which is located between the conductive element 15 and the core 12 and / or between the conductive element 15 and the housing 11. By providing the second colloid 19, the conductive element 15 is fixed to the air valve 10, and the conductive element 15 extends along a preset path, which is beneficial to the stability of the internal structure of the air valve 10.

[0072] like Figure 10 As shown, Figure 10 yes Figure 2 Another illustration of the cross-sectional view of the air valve 10 at point AA. Figure 10 and Figure 4 It's the same structural diagram, just for clearer illustration. Figure 10 The dimensions in the middle.

[0073] In some embodiments, when the seal 142 is correspondingly arranged with the air inlet 123, the air valve 10 satisfies the following relationship: (BA)÷2-(FE)÷2>0, where B is the effective sealing dimension of the seal 142, A is the diameter of the air inlet 123, F is the inner diameter of the housing 11, and E is the outer diameter of the partition 141. Wherein, (BA)÷2 is the effective sealing width of one side of the seal 142.

[0074] Without a reset component and when the coil 13 is not energized, the movable component 14 can move flexibly between the housing 11 and the core 12. Or, due to other circumstances, the movable component 14 may move flexibly between the housing 11 and the core 12. The movable component 14 may move left and right along the first direction A1, causing the position of the seal 142 and the air inlet 123 to shift. As a result, when the coil 13 is energized, during the movement of the seal 142 along the second direction A2, the seal 142 and the air inlet 123 are misaligned and cannot block the air inlet 123.

[0075] In this embodiment, by setting (BA)÷2-(FE)÷2>0, even if the seal 142 and the air inlet 123 are misaligned in the first direction, it can still ensure that the seal 142 blocks the air inlet 123, which is beneficial to ensuring the normal function of the air valve 10. When the coil 13 is not energized, the movable part 14 moves to the left along the first direction A1. After the coil 13 is energized, the right side of the seal 142 can still overlap the right edge of the air inlet 123 and block the air inlet 123. Alternatively, when the coil 13 is not energized, the movable part 14 moves to the right along the first direction A1. After the coil 13 is energized, the left side of the seal 142 can still overlap the left edge of the air inlet 123 and block the air inlet 123.

[0076] In some embodiments, the air valve 10 satisfies the following relationship: (CD)÷2-(FE)÷2>0, where C is the maximum outer diameter of the sealing portion 1421, D is the inner diameter of the recess 1226, F is the inner diameter of the housing 11, and E is the outer diameter of the partition 141. It is understood that the maximum outer diameter C of the sealing portion 1421 and the effective sealing dimension B of the seal 142 may or may not be equal.

[0077] Without a reset component, when the coil 13 is not energized, the movable part 14 can move freely between the housing 11 and the core 12. Alternatively, due to other circumstances, the movable part 14 may move flexibly between the housing 11 and the core 12. The movable part 14 may move up and down along the second direction A2, causing the seal 142 to move out of the recess 1226. The movable part 14 may also move left and right along the first direction A1, causing a positional shift between the seal 142 and the air inlet 123. When the seal 142 moves out of the recess 1226 and shifts left and right, and the coil 13 is energized, the seal 142 moves along the second direction A2. The seal 142 may be blocked by the edge of the recess 1226, meaning the movable part 14 is stuck by the surface of the second core 1222 away from the connecting part 121. The seal 142 cannot enter the recess 1226 along the second direction A2 to block the air inlet 123. Alternatively, the movable part 14 may move up and down along the second direction A2. When the seal 142 does not move out of the recess 1226 and shifts left and right, the seal 142 contacts the inner wall of the recess 1226, resulting in friction between the seal 142 and the recess 1226, causing the movable part 14 to be stuck by the inner wall of the recess 1226.

[0078] In this embodiment of the application, by setting (CD)÷2-(FE)÷2>0, even if the seal 142 moves out of the recess 1226 and shifts left and right, or if the seal 142 does not move out of the recess 1226 and shifts left and right, it can still ensure that after the coil 13 is energized, the seal 142 can block the air inlet 123, and the movable part 14 will not be stuck by the surface of the second core 1222 away from the connecting part 121, nor by the inner wall of the recess 1226, which is beneficial to ensuring the normal function of the air valve 10. When coil 13 is not energized, movable part 14 moves upward along the second direction A2 and to the left along the first direction A1. The projection of sealing part 1421 of sealing part 142 onto the plane of the bottom wall of recess 1226 is located within recess 1226. When coil 13 is energized, sealing part 142 will not be stuck by the surface of second core 1222 away from connecting part 121, nor by the inner wall of recess 1226. Sealing part 142 can block air inlet 123, or When the coil 13 is not energized, the movable part 14 moves upward along the second direction A2 and moves to the right along the first direction A1. The projection of the sealing part 1421 of the sealing part 142 onto the plane of the bottom wall of the recess 1226 is located inside the recess 1226. When the coil 13 is energized, the sealing part 142 will not be stuck by the surface of the second core 1222 away from the connecting part 121, nor by the inner wall of the recess 1226. The sealing part 142 can block the air inlet 123.

[0079] Understandably, (BA)÷2-(FE)÷2>0 and (CD)÷2-(FE)÷2>0 also apply. Figure 8 and Figure 9 The air valve shown.

[0080] See Figure 11 , Figure 11 yes Figure 1 Another structural schematic diagram of the air valve 10 shown. Figure 11 The air valve 10 shown is Figure 4 The difference of the air valve 10 shown is that Figure 11 The air valve 10 shown is equipped with a magnetically responsive elastomer 60. The air valve 10 may be equipped with a reset member. When the coil 13 is de-energized, the reset member is used to drive the movable member 14 to move away from the air inlet 123, which is connected to the air outlet 111. The reset member is used to increase the driving force of the movable member 14 away from the air inlet 123.

[0081] For example, the reset element can be a magnetically responsive elastomer 60, which can include an elastic matrix and soft magnetic particles. The elastic matrix can be a polymer, such as silicone rubber, and the soft magnetic particles can be ferrite, etc., distributed in the elastic matrix. After being magnetized by a magnetic field, the soft magnetic particles can attract each other, compressing the elastic matrix and causing deformation. When an external magnetic field (such as the magnetic field generated after coil 13 is energized) magnetizes the soft magnetic particles, the particles attract each other, compressing the elastic matrix. This can also be understood as the magnetically responsive elastomer 60 being compressed under the action of the magnetic field. Understandably, when a magnetic field is generated, the magnetically responsive elastomer 60 deforms and its size decreases; after the magnetic field disappears, the magnetically responsive elastomer 60 recovers its deformation and its size increases. Understandably, the magnetically responsive elastomer 60 does not require other forces to compress it; it deforms upon being subjected to magnetic force.

[0082] The magnetically responsive elastomer 60 can be located between the movable member 14 and the core 12. The magnetically responsive elastomer 60 can be fixed to the movable member 14 and in contact with the core 12, serving to support the movable member 14; alternatively, the magnetically responsive elastomer 60 can be fixed to the core 12 and in contact with the movable member 14, serving to support the movable member 14; or one side of the magnetically responsive elastomer 60 can be fixed to the movable member 14, and the other side can be fixed to the core 12. The fixing position of the magnetically responsive elastomer in this embodiment is flexible, and the fixing method is simple.

[0083] For example, when the coil 13 is energized, the coil 13 generates a magnetic field, which enables the core 12 and the magnetically responsive elastomer 60 (there can be two magnetically responsive elastomers 60, one located between the first core 1221 and the movable member 14, and the other located between the second core 1222 and the movable member 14) to generate magnetic force. The magnetically responsive elastomer is deformed and compressed. Under the magnetic force of the core 12 and the magnetically responsive elastomer 60, the movable member 14 approaches and blocks the air inlet 123. That is, the movable member 14 moves downward along the second direction A2, and the air inlet 123 is disconnected from the air outlet 111. Gas cannot pass through the air inlet 123, that is, the movable member 14 is magnetically attracted down. When coil 13 is de-energized, the magnetic field generated by coil 13 disappears, the magnetically responsive elastomer 60 recovers its deformation and its size increases. During the process of the magnetically responsive elastomer recovering its deformation, the movable member 14 is subjected to an upward force from the magnetically responsive elastomer, and the magnetically responsive elastomer 60 drives the movable member 14 to move upward along the second direction A2. The movable member 14 moves away from the air inlet 123. The air inlet 123 is connected to the air outlet 111, and gas can flow from the air inlet 123 to the air outlet 111. The magnetically responsive elastomer is used to support the movable member 14, so that the movable member 14 remains in a state away from the air inlet 123.

[0084] In some embodiments, the magnetically responsive elastomer 60 is provided with a third notch 61 through which the conductive element 15 passes. By accommodating a portion of the conductive element 15 within the third notch 61, the space on the magnetically responsive elastomer 60 is fully utilized, preventing the placement of the conductive element 15 from increasing the size of the air valve 10 in the second direction A2, which is beneficial for the miniaturization of the air valve 10. Furthermore, the third notch 61 can limit the conductive element 15, restricting its extension path within the air valve 10, which is beneficial for the structural stability of the air valve 10. Moreover, by providing the third notch 61, it is possible to prevent the conductive element 15 from being squeezed during the deformation of the magnetically responsive elastomer 60.

[0085] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A gas valve, characterized in that, Includes housing, electromagnetic components, moving parts, conductive parts, and electrical connectors; The housing is provided with an air vent; The electromagnetic component includes a core and a coil. The core is fastened to the housing to form a receiving cavity. The core includes an air inlet and an installation cavity that are spaced apart. The air inlet and the air outlet are spaced apart. The coil is wound around the installation cavity. The movable part is located in the receiving cavity and between the air outlet and the air inlet; The electrical connector is located outside the housing, the conductive element electrically connects the coil and the electrical connector, the electrical connector is used to supply power to the coil, and the conductive element passes through the gap between the housing and the core. The electromagnetic component is used to drive the movable part to approach and block the air inlet when the coil is energized, thus disconnecting the air inlet from the air outlet; when the coil is de-energized, the movable part moves away from the air inlet, thus connecting the air inlet with the air outlet.

2. The air valve as described in claim 1, characterized in that, The core includes a connecting part, a first core, and a second core. The connecting part is fastened to the housing to form the receiving cavity. The first core and the second core both protrude from the surface of the connecting part and are located in the receiving cavity. The first core surrounds the second core and together with the second core form the mounting cavity. The air inlet penetrates the connecting part and the second core. The conductive element passes sequentially through the gap between the first side of the first core and the housing, the gap between the second side of the first core and the housing, and the gap between the connecting part and the housing. The first side is the side of the first core away from the connecting part, and the second side is the side of the first core away from the second core.

3. The air valve as described in claim 2, characterized in that, The first side has a first notch, and the conductive element passes through the first notch.

4. The air valve as described in claim 2 or 3, characterized in that, The air valve includes a first colloid located in the third gap, and the first colloid covers the conductive element.

5. The air valve as described in claim 4, characterized in that, The core includes a support portion that protrudes from the surface of the connecting portion and surrounds the first core. The support portion abuts against the housing, and the first colloid is located between the first core and the support portion.

6. The air valve as described in claim 5, characterized in that, The support portion has a second notch, through which the conductive element passes.

7. The air valve as described in claim 2, characterized in that, The second side is provided with a first groove, through which the conductive element passes, and / or the housing is provided with a second groove on the side facing the second side, through which the conductive element passes.

8. The air valve as described in claim 1, characterized in that, The air valve includes a second colloid, which is located between the conductive element and the core and / or between the conductive element and the housing.

9. The air valve as described in claim 1, characterized in that, When the coil is de-energized, the movable part moves away from the air inlet under the action of the gas.

10. The air valve as claimed in claim 1, characterized in that, The movable component includes a fixedly connected partition and a seal. At least a portion of the seal is located on the side of the partition facing the air inlet. When the seal is correspondingly arranged with the air inlet, the air valve satisfies the following relationship: (BA)÷2-(FE)÷2>0, B is the effective sealing dimension of the seal, A is the diameter of the air inlet, F is the inner diameter of the housing, and E is the outer diameter of the partition.

11. The air valve as claimed in claim 1, characterized in that, The movable component includes a fixedly connected partition and a seal. At least a portion of the seal is located on the side of the partition facing the air inlet. The core has a recess located between the air inlet and the air outlet. When the coil is energized, the sealing portion of the seal is located within the recess to block the air inlet, thus disconnecting the air inlet from the recess. When the coil is de-energized, the sealing portion moves away from the air inlet, and the recess communicates with the air inlet. The air valve satisfies the following relationship: (CD)÷2-(FE)÷2>0, C is the maximum outer diameter of the sealing part, D is the inner diameter of the recess, F is the inner diameter of the housing, and E is the outer diameter of the partition.

12. The air valve as claimed in claim 1, characterized in that, The air valve includes a magnetically responsive elastomer located between the movable member and the core. When the coil is energized, the magnetically responsive elastomer generates a magnetic force and deforms. When the coil is de-energized, the magnetically responsive elastomer recovers its deformation and drives the movable member away from the air inlet.

13. The air valve as described in claim 12, characterized in that, The magnetically responsive elastomer has a third notch, through which the conductive element passes.

14. An electronic device, characterized in that, It includes an airbag and an air valve as described in any one of claims 1-13, wherein the airbag is in communication with the air valve.

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