CN217842891U - A single solenoid valve - Google Patents

Abstract

The utility model discloses a single electric control solenoid valve, which comprises a valve body connected in sequence, a pilot valve assembly and a junction box assembly, the junction box assembly includes a junction box connected to the pilot valve assembly, and a circuit board arranged in the junction box , the junction box is also provided with an elastic member electrically connected to the circuit board, the pilot valve assembly is provided with pins, and the pins are electrically connected with the coil assembly of the pilot valve assembly, and the junction box is provided with jacks corresponding to the pins; The hole is inserted into the junction box and abuts against the elastic member. By arranging springs in the junction box and using the compressibility of the springs, when the pins are inserted into the junction box, the pins and the springs are matched, so that the pins and the circuit board form a flexible electrical connection, which is not only simple in structure and easy to assemble, but also This flexible contact method also enables the pins and the circuit board to maintain a good contact state, which is not easy to cause open circuit or poor contact, and ensures that the solenoid valve can work normally.

Description

A single solenoid valve

technical field

The utility model relates to the technical field of solenoid valves, in particular to a single electric control solenoid valve.

Background technique

Solenoid valve is an automatic basic component used to control fluid. It is widely used in industrial control systems. It belongs to control components and is not limited to hydraulic and pneumatic. The solenoid valve cooperates with the circuit to control the direction, flow, speed and other parameters of the medium. The solenoid valve mainly includes a valve body, a pilot valve assembly used to control the movement of the valve stem in the valve body, and a junction box assembly used to control the power on and off of the coil assembly in the pilot valve assembly. At present, the coil assembly is generally welded to the circuit board in the junction box assembly through pins, so as to form an electrical connection. This welding connection method is not only inconvenient to assemble, but also prone to false welding due to pin processing tolerances and other reasons, resulting in open circuit or poor contact, causing line failure, and causing the solenoid valve to fail to work normally.

Utility model content

The purpose of this utility model is to provide a single solenoid valve with simple and reasonable structure, convenient assembly, and it is not easy to cause circuit breakage or poor contact during operation, so as to ensure the normal operation of the solenoid valve. .

In order to achieve the above object, the utility model adopts the following technical solutions.

A single solenoid valve, comprising a valve body connected in sequence, a pilot valve assembly, and a junction box assembly, the junction box assembly includes a junction box connected to the pilot valve assembly, and a circuit set in the junction box Board, the junction box is also provided with an elastic member electrically connected to the circuit board, the pilot valve assembly is provided with pins, the pins are electrically connected to the coil assembly of the pilot valve assembly, and the junction box is set There are sockets corresponding to the pins; the pins are inserted into the junction box through the sockets and abut against the elastic member.

Further, the elastic member is set as a spring, and a spring accommodating cavity connected with the socket is set in the junction box, and the spring is set in the spring accommodating cavity; one end of the spring is connected to the spring accommodating cavity. The circuit board is abutted to form an electrical connection, and the other end of the spring is abutted to the pin to form an electrical connection.

Further, a limiting step is provided at the end of the spring installation chamber far away from the circuit board, and when the pin is pulled out from the socket, the spring abuts against the limiting step and the circuit board. between.

Further, the junction box includes a box body and a box cover, the circuit board is fixedly arranged between the box body and the box cover, and a sleeve part adapted to the spring is arranged in the box body, The spring accommodating cavity is formed in the sleeve portion.

Further, the circuit board is abutted between the sleeve part and the box cover.

Further, the pin has a step and a tip, the tip is inserted into the spring, and the step is against the spring.

Further, the insertion end of the socket is provided with a guide inclined surface matched with the pin.

Further, a sealing ring is provided on the outer edge of the insertion hole, and the sealing ring is arranged between the junction box and the pilot valve assembly.

Further, the pilot valve assembly is fixedly connected with the valve body through a pilot seat.

The beneficial effects of the utility model are: the utility model provides a single electric control solenoid valve, by setting a spring in the junction box, using the compressibility of the spring, when the pin is inserted into the junction box, the pin and the spring are offset and matched , so that the pins and the circuit board form a flexible electrical connection. Not only is the structure simple and easy to assemble, but this flexible contact method also enables the pins and the circuit board to maintain a good contact state, which is not easy to cause open circuit or poor contact, ensuring that the solenoid valve able to work.

Description of drawings

Fig. 1 is a schematic diagram of the overall assembly structure of the utility model.

Fig. 2 is a schematic diagram of the overall structure of the utility model partially in a disassembled state.

Fig. 3 is a schematic diagram of the overall structure of the utility model in a partially sectioned state.

Fig. 4 is a cross-sectional view at A-A in Fig. 3 .

In Fig. 1-4: 1. valve body; 2. pilot valve assembly; 21. pin; 211. step; 212. tip; 3. junction box assembly; 31. junction box; 311. jack; 312. spring Accommodating cavity; 313, box body; 314, box cover; 315, sleeve part; 316, limit step; 317, guiding slope; 32, circuit board; 321, conductive pin; 33, socket; 34, spring; 4. Pilot seat; 5. Screw; 6. Patch cord; 7. Sealing ring.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1-4, a single solenoid valve includes a valve body 1, a pilot valve assembly 2 and a junction box assembly 3 connected in series through screws 5, wherein the pilot valve assembly 2 connects with the pilot seat 4 The valve body 1 is fixedly connected. The junction box assembly 3 includes a junction box 31 connected to the pilot valve assembly 2, a circuit board 32 arranged in the junction box 31, a socket 33 is provided on the junction box 31, and the external patch cord 6 passes through the socket 33 and the circuit board 32. The conductive pin 321 is inserted.

The junction box 31 is also provided with an elastic member electrically connected to the circuit board 32, the pilot valve assembly 2 is provided with a pin 21, and the pin 21 is electrically connected with the coil assembly of the pilot valve assembly 2, and the number of the pin 21 and the elastic member are respectively set The junction box 31 is provided with jacks 311 corresponding to the pins 21 one by one; the pins 21 are inserted into the junction box 31 through the jacks 311 and abut against corresponding elastic members.

Preferably, in this embodiment, the elastic member is set as a spring 34, and the junction box 31 is provided with a spring accommodating cavity 312 connected with the socket 311, and the spring 34 is set in the spring accommodating cavity 312, specifically, in order to prevent The spring 34 shakes/deforms undesirably, and the spring accommodation chamber 312 is adapted to the spring 34, that is, the diameter of the spring accommodation chamber 312 is adapted to the diameter of the spring 34, and the length of the spring accommodation chamber 312 is compatible with the spring 34. suitable for the length.

One end of the spring 34 is in contact with the circuit board 32 to form an electrical connection, and the other end of the spring 34 is in contact with the pin 21 to form an electrical connection, so that the circuit board 32 and the coil assembly form a closed circuit.

Preferably, in order to make the spring 34 more tightly contact with the socket, preferably, the pin 21 has a step portion 211 and a tip portion 212 , the tip portion 212 is inserted into the spring 34 , and the step portion 211 abuts against the spring 34 .

The utility model provides a single electric control solenoid valve. By setting a spring 34 in the junction box 31 and using the compressibility of the spring 34, when the pin 21 is inserted into the junction box 31, the pin 21 and the spring 34 are matched. Therefore, the pin 21 and the circuit board 32 form a flexible electrical connection, which is not only simple in structure and convenient to assemble, but also enables the pin 21 and the circuit board 32 to maintain a good contact state, which is not easy to cause open circuit or poor contact, ensuring Solenoid valve can work normally.

Preferably, for the convenience of processing and installation, in this embodiment, the junction box 31 includes a box body 313 and a box cover 314, the circuit board 32 is fixedly arranged between the box body 313 and the box cover 314, and the box body 313 is provided with a spring 34 is adapted to the sleeve portion 315, and a spring accommodating cavity 312 is formed in the sleeve portion 315.

Preferably, in this embodiment, the circuit board 32 is abutted between the sleeve portion 315 and the box cover 314 to effectively improve the position of the circuit board 32 .

Preferably, a limiting step 316 is provided at the end of the spring accommodating chamber 312 away from the circuit board 32 , and when the pin 21 is pulled out from the socket 311 , the spring 34 abuts between the limiting step 316 and the circuit board 32 . By setting the limit step 316, when the junction box assembly 3 is not connected to the pilot valve assembly 2, that is, when the pin 21 is not inserted into the junction box 31, the spring 34 is set between the limit step 316 and the circuit board 32 at this time. During this time, the positional degree of the spring 34 can be ensured.

Preferably, the insertion end of the insertion hole 311 is provided with a guide slope 317 matched with the pin 21 , and the guide function of the guide slope 317 facilitates the insertion of the pin 21 into the insertion hole 311 .

Preferably, in order to improve the sealing performance, a sealing ring 7 is provided on the outer edge of the insertion hole 311 , and the sealing ring 7 is arranged between the junction box 31 and the pilot valve assembly 2 .

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (9)

1. A single electrically controlled solenoid valve, comprising a valve body, a pilot valve assembly and a junction box assembly connected in sequence, the junction box assembly comprising a junction box connected to the pilot valve assembly, arranged in the junction box The circuit board is characterized in that: the junction box is also provided with an elastic member electrically connected to the circuit board, and the pilot valve assembly is provided with pins, and the pins are electrically connected to the coil assembly of the pilot valve assembly , the junction box is provided with sockets corresponding to the pins; the pins are inserted into the junction box through the sockets and abut against the elastic member. 2. A single solenoid valve according to claim 1, characterized in that: the elastic member is set as a spring, and the junction box is provided with a spring accommodating cavity that communicates with the jack, and the The spring is arranged in the spring accommodating cavity; one end of the spring abuts against the circuit board to form an electrical connection, and the other end of the spring abuts to the pin to form an electrical connection. 3. A single solenoid valve according to claim 2, characterized in that: the end of the spring installation cavity away from the circuit board is provided with a limit step, when the pin is pulled out from the socket When, the spring is abutted between the limiting step and the circuit board. 4. A single solenoid valve according to claim 2 or 3, characterized in that: the junction box includes a box body and a box cover, and the circuit board is fixedly arranged on the box body and the box cover In between, a sleeve part adapted to the spring is arranged in the box, and the spring accommodating cavity is formed in the sleeve part. 5 . The single solenoid valve according to claim 4 , wherein the circuit board is abutted between the sleeve portion and the box cover. 6 . 6. A single solenoid valve according to claim 2, characterized in that: the pin has a step and a tip, the tip is inserted into the spring, and the step and the spring offset. 7. A single solenoid valve according to claim 1, characterized in that: the insertion end of the socket is provided with a guide inclined surface matched with the pin. 8. A single solenoid valve according to claim 1, characterized in that: the outer edge of the socket is provided with a sealing ring, and the sealing ring is arranged between the junction box and the pilot valve assembly . 9. The single solenoid valve according to claim 1, wherein the pilot valve assembly is fixedly connected to the valve body through a pilot seat.

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