Integrated electromagnetic air pump valve with PCB (printed circuit board)

Abstract

The utility model belongs to the technical field of electromagnetic air pump valves, and discloses an integrated electromagnetic air pump valve with a PCB (printed circuit board), which comprises the PCB and an electromagnetic valve, the electromagnetic valve comprises a first support, a first valve body and a first coil assembly matched with the first valve body, the first valve body is arranged on the first support, and the second valve body is arranged on the second support. The first coil assembly comprises a first coil body and a first coil framework, the first coil body is arranged on the periphery of the first coil framework in a winding mode, and the PCB is arranged on the side portion of the first support. Therefore, the size of the PCB is not limited by the installation space of the electromagnetic valves, a plurality of independent electromagnetic valves can be installed on the PCB, other electronic components which work in a matched mode can be integrated on the PCB, other circuit boards do not need to be externally connected, cost is lower, and assembling is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic air pump valves, and particularly relates to an integrated electromagnetic air pump valve with a PCB board. Background Technique

[0002] The electromagnetic air pump valve is a basic automation component for controlling fluids, belonging to an actuator, not limited to hydraulic and pneumatic applications. It is used in industrial control systems to adjust the direction, flow rate, speed and other parameters of the medium. The air pump valve can cooperate with different circuits to achieve the expected control, and both the control accuracy and flexibility can be guaranteed. The electromagnetic air pump valve is applied in the movement mechanisms of many health care massage devices (such as massage chairs).

[0003] After retrieval, the Chinese utility model patent (authorization publication number: CN217842886U) discloses a solder-free wire type electromagnetic air pump valve with a PCB board. Its structure includes a valve body, an electromagnetic coil assembly arranged in cooperation with the valve body, and a mounting bracket. The valve body is arranged at the upper end of the mounting bracket. The electromagnetic coil assembly includes a coil body and a coil skeleton. The coil skeleton is fixedly connected to the mounting bracket. The coil body is wound around the outside of the coil skeleton. A PCB board is arranged at the bottom of the mounting bracket. Conductive pins are arranged at the bottom of the coil skeleton. The lead wire of the coil body is electrically connected to the conductive pins, and the conductive pins are welded to the PCB board. A socket is integrated on the PCB board.

[0004] The advantages of the above solder-free wire type electromagnetic air pump valve with a PCB board are that by arranging the PCB board at the bottom of the mounting bracket, the lead wire of the coil body is electrically connected to the PCB board through the conductive pins, and a socket is integrated on the PCB board. It is not only convenient to use without the need to externally connect a PCB board, but also convenient and fast to assemble. No matter how many electromagnetic coil assemblies the air pump valve integrates, the same socket can be shared, effectively reducing the number of required accessories.

[0005] However, the above solder-free wire type electromagnetic air pump valve with a PCB board also has the following defects: The PCB board is arranged at the bottom of the solenoid valve. Limited by the overall installation space of the solenoid valve, the size of the PCB needs to match the bottom space of the solenoid valve, resulting in a small size of the PCB, which leads to fewer electronic components that can be integrated on the PCB. An external circuit board is still needed, making the assembly inconvenient and increasing the cost. Therefore, it is urgent to improve this defect. Content of the Utility Model

[0006] The purpose of the utility model is to solve the above problems. The utility model provides an integrated electromagnetic air pump valve with a PCB board, which has the advantages that the horizontally installed solenoid valve is more stable and multiple solenoid valves can be installed on the same PCB board at the same time.

[0007] To achieve the above object, the present utility model provides the following technical solutions: It includes a PCB board and a solenoid valve. The solenoid valve includes a first bracket, a first valve body, and a first coil assembly arranged in cooperation with the first valve body. The first valve body is arranged on the first bracket. The first coil assembly includes a first coil body and a first coil skeleton. The first coil body is wound around the outer periphery of the first coil skeleton. The PCB board is arranged on the side of the first bracket, so that the solenoid valve is horizontally installed on the PCB board. A first conductive pin is arranged at the side end of the first coil skeleton. The lead wire of the first coil body is electrically connected to the first conductive pin, and the first conductive pin is welded to the PCB board.

[0008] Preferably, the first valve body includes a first valve cavity, a working port, an air inlet, and a valve port. The working port is communicated with the first valve cavity. The air inlet is communicated with the first valve cavity through the valve port. A first static iron core is fixedly installed in the first valve cavity. A first moving iron core is movably arranged in the first valve cavity and is in cooperation with the first static iron core. A first spring is arranged in the first valve cavity and abuts against the first moving iron core. The first spring always makes the first moving iron core have a tendency to seal the valve port. A first exhaust port is arranged in the first static iron core;

[0009] When the first coil assembly is powered off, the first moving iron core is in sealing cooperation with the valve port, the air inlet and the working port are blocked, and the working port and the first exhaust port are communicated;

[0010] When the first coil assembly is powered on, the first moving iron core is disengaged from the sealing cooperation with the valve port, and the air inlet and the working port are communicated.

[0011] Preferably, a connection port communicated with the air inlet is arranged on the first valve body.

[0012] Preferably, the solenoid valve further includes a second bracket, a second valve body, and a second coil assembly arranged in cooperation with the second valve body. The second valve body is arranged on the second bracket. The second coil assembly includes a second coil body and a second coil skeleton. The second coil body is wound around the outer periphery of the second coil skeleton. The second valve body has a second valve cavity. The PCB board is arranged on the side of the second bracket. A second conductive pin is arranged at the side end of the second coil skeleton. The lead wire of the second coil body is electrically connected to the second conductive pin, and the second conductive pin is welded to the PCB board.

[0013] Preferably, the first exhaust port is communicated with the second valve cavity. A second static iron core is arranged in the second valve cavity. A second moving iron core is movably arranged in the second valve cavity and is matched with the second static iron core. A second spring which abuts against and cooperates with the second moving iron core is arranged in the second valve cavity. The second spring always makes the second moving iron core have a tendency to seal the first exhaust port. A second exhaust port is arranged in the second static iron core.

[0014] When the second coil assembly is powered off, the first exhaust port and the second valve cavity are blocked.

[0015] When the second coil assembly is powered on, the first exhaust port is communicated with the second valve cavity.

[0016] Preferably, a first spring cavity for installing the first spring is arranged in the first moving iron core, and a second spring cavity for installing the second spring is arranged in the second moving iron core.

[0017] Preferably, a first plug which is hermetically matched with the valve port is arranged on the first moving iron core.

[0018] Preferably, a second plug which is hermetically matched with the first exhaust port is arranged on the second moving iron core.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] An integrated electromagnetic air pump valve with a PCB board provided by the present utility model horizontally installs the solenoid valve on the PCB board. Therefore, the size of the PCB board is not limited by the installation space of the solenoid valve, so that not only multiple independent solenoid valves can be installed on the PCB board, but other electronic components that cooperate with each other can also be integrated. Therefore, there is no need to externally connect other circuit boards, resulting in lower costs and more convenient assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a top-view structural schematic diagram of the present utility model;

[0023] Figure 3 is Figure 2 a cross-sectional structural schematic diagram of A-A in

[0024] Figure 4 a cross-sectional structural schematic diagram of the first valve body of the present utility model;

[0025] Figure 5 is a three-dimensional structural schematic diagram of the first valve body and the first coil assembly of the present utility model;

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the second coil assembly of the present utility model.

[0027] Description of the drawings: 1. PCB board; 20. First bracket; 21. First valve body; 210. Valve port; 211. Working port; 212. Air inlet; 213. First valve cavity; 214. Connection port; 22. First moving iron core; 221. First spring cavity; 23. First plug; 24. First spring; 25. First coil assembly; 251. First coil body; 252. First coil skeleton; 26. First static iron core; 261. First exhaust port; 27. First conductive pin; 30. Second bracket; 31. Second valve body; 310. Second valve cavity; 32. Second moving iron core; 321. Second spring cavity; 33. Second plug; 34. Second spring; 35. Second coil assembly; 351. Second coil body; 352. Second coil skeleton; 36. Second static iron core; 361. Second exhaust port; 37. Second conductive pin. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0029] As Figures 1 - 6 shown, an integrated electromagnetic air pump valve with a PCB board includes a PCB board 1 and a solenoid valve. The solenoid valve includes a first bracket 20, a first valve body 21, and a first coil assembly 25 arranged in cooperation with the first valve body 21. The first valve body 21 is arranged on the first bracket 20. The first coil assembly 25 includes a first coil body 251 and a first coil skeleton 252. The first coil body 251 is wound around the outer periphery of the first coil skeleton 252. The PCB board 1 is arranged on the side of the first bracket 20, so that the solenoid valve is horizontally installed on the PCB board 1. A first conductive pin 27 is arranged at the side end of the first coil skeleton 252. The lead of the first coil body 251 is electrically connected to the first conductive pin 27, and the first conductive pin 27 is welded to the PCB board 1. By horizontally installing the solenoid valve on the PCB board 1, and any number of solenoid valves can be installed on the PCB board 1, and at least one solenoid valve is installed. In addition to installing the solenoid valve, the PCB board 1 can also integrate other electronically controlled components that cooperate with each other, such as switches, sockets, or capacitors and other electronically controlled components that cooperate with each other. Different electronically controlled components can be installed according to the needs of customers, so as to meet the needs of different customers. And the air pump valve can also be directly installed without the need for lugs on the PCB board.

[0030] The first valve body 21 includes a first valve cavity 213, a working port 211, an air inlet 212 and a valve port 210. The working port 211 is communicated with the first valve cavity 213, the air inlet 212 is communicated with the first valve cavity 213 through the valve port 210. The working port 211 is used for externally connecting pneumatic components or units such as air bags that need to be inflated and deflated to operate. A first static iron core 26 is fixedly installed in the first valve cavity 213. The first static iron core 26 is located at the bottom of the first valve cavity 213. A first moving iron core 22 is movably arranged in the first valve cavity 213. A first spring 24 that abuts against the first moving iron core 22 is arranged in the first valve cavity 213. In this embodiment, the first spring 24 abuts between the first moving iron core 22 and the first static iron core 26. In the present application, the first moving iron core 22 is located above the first static iron core 26. The first spring 24 makes the first moving iron core 22 always have a tendency to seal the valve port 210. A first plug 23 that is sealingly matched with the valve port 210 is arranged on the first moving iron core 22. A first exhaust port 261 is arranged in the first static iron core 26. The first valve cavity 213 is connected to the outside of the first valve cavity 213 through the first exhaust port 261. When the first coil assembly 25 is powered off, the first plug 23 is sealingly matched with the valve port 210, and the air inlet 212 and the working port 211 are blocked, and the working port 211 is communicated with the first exhaust port 261;

[0031] When the first coil assembly 25 is powered on, the first plug 23 is disengaged from the sealing fit with the valve port 210, and the air inlet 212 is communicated with the working port 211;

[0032] A connection port 214 communicated with the air inlet 212 is arranged on the first valve body 21. When multiple solenoid valves are installed on the PCB board 1, the connection port 214 is connected to the air inlet 212 of another adjacent first valve body 21, and the air inlet 212 of the solenoid valve at the first position is connected to an air pump. A sealing block can be installed at the connection port 214 of the solenoid valve at the last position, so as to prevent air leakage of the solenoid valve at the last position.

[0033] The solenoid valve further includes a second valve body 31. The second valve body 31 is sealingly matched with the first exhaust port 261, and a second coil assembly 35 is arranged in cooperation with the second valve body 31. A second support 30 is installed outside the second valve body 31. The side end of the second support 30 is fixedly installed on the PCB board 1. The second valve body 31 realizes the function of maintaining pressure on the first valve body 21. The second coil assembly 35 includes a second coil body 351 and a second coil skeleton 352. The second coil body 351 is wound around the outer periphery of the second coil skeleton 352. The second valve body 31 has a second valve cavity 310. The PCB board 1 is arranged on the side of the second support 30. A second conductive pin 37 is arranged at the side end of the second coil skeleton 352. The lead wire of the second coil body 351 is electrically connected to the second conductive pin 37, and the second conductive pin 37 is welded to the PCB board 1.

[0034] The second valve body 31 includes a second valve cavity 310. A second static iron core 36 is fixedly installed in the second valve cavity 310. The second static iron core 36 is located at the bottom of the second valve cavity 310. A second moving iron core 32 is movably arranged in the second valve cavity 310. A second spring 34 which abuts against the second moving iron core 32 is arranged in the second valve cavity 310. In this embodiment, the second spring 34 abuts between the second static iron core 36 and the second moving iron core 32. In this application, the second moving iron core 32 is located between the first static iron core 26 and the second static iron core 36. The second spring 34 makes the second moving iron core 32 always have a tendency to seal the first exhaust port 261. A second plug 33 which is in sealing cooperation with the first exhaust port 261 is arranged on the second moving iron core 32. A second exhaust port 361 is arranged in the second static iron core 36. The second valve cavity 310 is connected to the atmosphere through the second exhaust port 361. When the second coil assembly 35 is powered off, the first exhaust port 261 is blocked from the second valve cavity 310. When the second coil assembly 35 is powered on, the first exhaust port 261 is connected to the second valve cavity 310.

[0035] The first exhaust port 261 is connected to the second valve cavity 310. A seal is arranged between the second valve cavity 310 and the first static iron core 26. The seal can prevent gas from being discharged from the first exhaust port 261 to the atmosphere, and the seal is an O-ring or a sealing ring or other seals that can achieve a sealing effect.

[0036] A plurality of installation positions for installing solenoid valves, the second valve body 31 and the second bracket 30 are arranged on the PCB board 1. A plurality of installation holes for inserting the first conductive pins 27 and the second conductive pins 37 are also arranged on the PCB board 1. And the PCB board 1 can install the required number of solenoid valves and the second valve body 31 according to customer requirements.

[0037] A first spring cavity 221 for installing the first spring 24 is provided in the first moving iron core 22. A second spring cavity 321 for installing the second spring 34 is provided in the second moving iron core 32, so as to more conveniently position and install the first spring 24 and the second spring 34.

[0038] As can be seen from the above, by arranging the first conductive pins 27 at the side end of the first coil bobbin 252 and the second conductive pins 37 at the side end of the second coil bobbin 352, and inserting the first conductive pins 27 and the second conductive pins 37 into the PCB board 1, and then welding the conductive pins to the PCB board 1, so as to be horizontally installed and fixed. And the side ends of the first bracket 20 and the second bracket 30 are fixedly installed on the PCB board 1, further improving the stability of the installation of the first valve body 21 and the second valve body 31 on the PCB board 1. Since the horizontal installation has a lower center of gravity than the vertical installation, and the double fixation of the conductive pins and the brackets makes the valve body more firmly installed on the PCB board 1.

[0039] In the initial state: Since the first spring 24 always has a tendency to push the first moving iron core 22 to move away from the first static iron core 26, the first plug 23 on the first moving iron core 22 is in sealing fit with the valve port 210. The second spring 34 always has a tendency to push the second moving iron core 32 to move away from the second static iron core 36, so the second plug 33 on the second moving iron core 32 is in sealing fit with the first exhaust port 261.

[0040] When it is necessary to inflate the external execution unit, at this time the first coil assembly 25 is powered on, so that the first static iron core 26 obtains magnetic force, providing a magnetic force for the first moving iron core 22 to overcome the elastic force of the first spring 24, and then driving the first moving iron core 22 to move towards the side close to the first static iron core 26, and then making the first plug 23 disengage from the sealing fit with the valve port 210, and then making the air inlet 212 communicate with the working port 211. At this time, the external execution unit can be inflated. And during the inflation process, the second coil assembly 35 is always in a power-off state, so that the second plug 33 is always in sealing fit with the first exhaust port 261. In addition, when the inflation process is over, since the second coil assembly 35 is not powered on, the second plug 33 is always in sealing fit with the first exhaust port 261, so the first valve cavity 213 and the external execution unit can be in a pressure-holding state.

[0041] When it is necessary to exhaust the external execution unit, at this time the second coil assembly 35 is started, so that the second static iron core 36 obtains magnetic force, providing a magnetic force for the second moving iron core 32 to overcome the elastic force of the second spring 34, and then driving the second moving iron core 32 to move towards the side close to the second static iron core 36, and then making the second plug 33 disengage from the sealing fit with the first exhaust port 261, and then making the first valve cavity 213 communicate with the second valve cavity 310 through the first exhaust port 261. Therefore, the gas in the external execution unit and the first valve cavity 213 is discharged to the atmosphere through the first exhaust port 261, the second valve cavity 310 and the second exhaust port 361, thus realizing the exhaust function.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated electromagnetic air pump valve with a PCB board, comprising a PCB board (1) and a solenoid valve, the solenoid valve comprising a first bracket (20), a first valve body (21), and a first coil assembly (25) arranged in cooperation with the first valve body (21), the first valve body (21) being arranged on the first bracket (20), the first coil assembly (25) comprising a first coil body (251) and a first coil skeleton (252), the first coil body (251) being wound around the outer periphery of the first coil skeleton (252), and characterized in that: The PCB board (1) is arranged on the side of the first bracket (20), so that the solenoid valve is horizontally mounted on the PCB board (1); a first conductive pin (27) is provided at the side end of the first coil skeleton (252); a lead of the first coil body (251) is electrically connected to the first conductive pin (27); and the first conductive pin (27) is welded to the PCB board (1).

2. The integrated electromagnetic air pump valve with a PCB board according to claim 1, characterized in that: The first valve body (21) includes a first valve cavity (213), a working port (211), an air inlet (212) and a valve port (210), wherein the working port (211) is in communication with the first valve cavity (213), and the air inlet (212) is in communication with the first valve cavity (213) through the valve port (210), a first static iron core (26) is fixedly installed in the first valve cavity (213), a first movable iron core (22) is movably provided in the first valve cavity (213) to cooperate with the first static iron core (26), a first spring (24) is provided in the first valve cavity (213) to abut against the first movable iron core (22), the first spring (24) enables the first movable iron core (22) to always have a tendency to seal the valve port (210), and a first exhaust port (261) is provided in the first static iron core (26); When the first coil assembly (25) is powered off, the first moving iron core (22) is sealed and matched with the valve port (210), the air inlet (212) and the working port (211) are blocked, and the working port (211) and the first exhaust port (261) are connected; When the first coil assembly (25) is energized, the first moving iron core (22) and the valve port (210) are released from sealing engagement, and the air inlet (212) is communicated with the working port (211).

3. The integrated electromagnetic air pump valve with a PCB board according to claim 2, characterized in that: The first valve body (21) is provided with a connecting port (214) communicating with the air inlet (212).

4. The integrated electromagnetic air pump valve with a PCB board according to claim 2, characterized in that: The solenoid valve further comprises a second bracket (30), a second valve body (31) and a second coil assembly (35) arranged in cooperation with the second valve body (31); the second valve body (31) is arranged on the second bracket (30); the second coil assembly (35) comprises a second coil body (351) and a second coil skeleton (352); the second coil body (351) is wound around the outer periphery of the second coil skeleton (352); the second valve body (31) has a second valve cavity (310); the PCB board (1) is arranged on the side of the second bracket (30); a second conductive pin (37) is provided at the side end of the second coil skeleton (352); a lead of the second coil body (351) is electrically connected to the second conductive pin (37); and the second conductive pin (37) is welded to the PCB board (1).

5. The integrated electromagnetic air pump valve with a PCB board according to claim 4, characterized in that: The first exhaust port (261) is communicated with the second valve cavity (310), the second valve cavity (310) is provided with a second static iron core (36), a second movable iron core (32) is movably provided in the second valve cavity (310) and cooperates with the second static iron core (36), a second spring (34) is provided in the second valve cavity (310) and cooperates with the second movable iron core (32), the second spring (34) enables the second movable iron core (32) to always have a tendency to seal the first exhaust port (261), and the second exhaust port (361) is provided in the second static iron core (36); When the second coil assembly (35) is powered off, the first exhaust port (261) and the second valve cavity (310) are blocked; When the second coil assembly (35) is energized, the first exhaust port (261) is in communication with the second valve chamber (310).

6. The integrated electromagnetic air pump valve with a PCB board according to claim 5, characterized in that: The first moving iron core (22) has a first spring cavity (221) for installing the first spring (24), and the second moving iron core (32) has a second spring cavity (321) for installing the second spring (34).

7. The integrated electromagnetic air pump valve with a PCB board according to claim 2, characterized in that: The first moving iron core (22) is provided with a first plug (23) that seals with the valve port (210).

8. The integrated electromagnetic air pump valve with a PCB board according to claim 5, characterized in that: The second moving iron core (32) is provided with a second plug (33) that seals with the first exhaust port (261).

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