Electromagnetic valve using exhaust gas for heat dissipation

Abstract

The utility model discloses a kind of electromagnetic valve of exhaust heat dissipation, including wire package assembly and valve body, the wire package assembly includes shell, static core, moving core and moving core reset spring, the wire package assembly energization and power-off respectively correspond the up-down movement of moving core;The valve body is equipped with air inlet, working port and exhaust port;Valve port is equipped in the valve body, and the valve port is communicated with air inlet;The working port is communicated with the inner cavity of valve body;The wire package assembly is equipped with exhaust heat dissipation channel, and the exhaust heat dissipation channel is communicated with exhaust port;When moving core moves up, it can block exhaust heat dissipation channel, and when moving down, it can block valve port.The utility model changes the exhaust trend of electromagnetic valve, makes exhaust channel flow through wire package assembly, utilizes the gas flow of exhaust time to take away the heat of electromagnetic valve, reaches the purpose of heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, specifically to a solenoid valve that utilizes exhaust heat dissipation. Background Technology

[0002] Miniature solenoid valves used for pneumatic control have a compact structure. During operation, the heat generated by the coil is difficult to dissipate quickly. Prolonged operation can cause the solenoid valve temperature to rise, which not only reduces the conductivity of the solenoid coil and affects the response speed, but may also accelerate the aging of the seals and damage the internal electronic components, thereby affecting the working stability and service life of the solenoid valve. Utility Model Content

[0003] The purpose of this invention is to provide a solenoid valve that utilizes exhaust heat dissipation to solve the heat dissipation problem of solenoid valves.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a solenoid valve utilizing exhaust heat dissipation, comprising a coil assembly and a valve body. The coil assembly includes a housing, a stationary iron core, a moving iron core, and a moving iron core return spring. The energization and de-energization of the coil assembly correspond to the up-and-down movement of the moving iron core, respectively. The valve body is provided with an air inlet, a working port, and an exhaust port. The valve body is provided with a valve port, which communicates with the air inlet. The working port communicates with the internal cavity of the valve body. The coil assembly is provided with an exhaust heat dissipation channel, which communicates with the exhaust port. When the moving iron core moves upward, it can block the exhaust heat dissipation channel; when it moves downward, it can block the valve port.

[0005] Preferably, the exhaust heat dissipation channel includes a static iron core exhaust hole vertically disposed in the static iron core and at least one housing exhaust channel vertically disposed in the housing, wherein the static iron core exhaust hole and the housing exhaust channel are connected; the side wall of the valve body is provided with a valve body exhaust channel, one end of the valve body exhaust channel is connected to a corresponding housing exhaust channel, and the other end is connected to an exhaust port.

[0006] Preferably, the number of exhaust channels in the housing is two, arranged diagonally along the housing.

[0007] Preferably, of the two housing exhaust channels, one housing exhaust channel corresponds to the valve body exhaust channel, and the other housing exhaust channel corresponds to the positioning plug provided on the valve body.

[0008] Preferably, a top cover is fixedly provided on the top of the housing, and the static iron core exhaust hole and the housing exhaust channel are respectively connected to the inner cavity of the top cover.

[0009] Preferably, the upper and lower end faces of the moving iron core are respectively provided with rubber pads.

[0010] Compared with the prior art, the advantages of this utility model are as follows: This utility model changes the exhaust direction of the solenoid valve, so that the exhaust channel flows through the coil assembly, and the gas flow during exhaust carries away the heat of the solenoid valve, thereby achieving the purpose of heat dissipation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is an exploded view of the present invention.

[0013] Figure 3 This is a schematic diagram of the internal structure of the cable package component in this utility model.

[0014] Figure 4 This is a cross-sectional schematic diagram of the moving iron core in this utility model.

[0015] Figure 5 This is a cross-sectional schematic diagram of the valve body in this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments will provide a more detailed description of this utility model.

[0017] Example: Refer to Figure 1-5 A solenoid valve that utilizes exhaust heat dissipation includes a coil assembly 1 and a valve body 2 fixed to each other. The coil assembly 1 includes a housing 3 and a coil 5, a stationary iron core 6, and a moving iron core 7 disposed within the housing. A moving iron core return spring 8 is fitted onto the lower part of the moving iron core 7. The lower end of the moving iron core return spring 8 abuts against the flange surface at the bottom of the moving iron core, and the upper end abuts against the coil assembly. When the solenoid valve is energized, the moving iron core 7 moves upward against the moving iron core return spring. When the coil is de-energized, the moving iron core 7 moves downward under the action of the moving iron core return spring 8.

[0018] The bottom of the inner cavity of the valve body 2 is provided with a valve port 9 corresponding to the moving iron core. The side is provided with an air inlet 10, a working port 11 and an exhaust port 12 from bottom to top. The air inlet 10 is connected to the valve port 9, and the working port 11 is connected to the inner cavity of the valve body.

[0019] In this embodiment, a static iron core vent 13 is vertically penetrating through the middle of the static iron core 6, and this static iron core vent 13 corresponds to the moving iron core. Vertically penetrating shell exhaust channels 14 are provided on opposite diagonal sides of the shell 3. Furthermore, a top cover 4 is provided on the top of the shell. The inner cavity formed by the shell 3 and the top cover 4 communicates with the static iron core vent 13 and the shell exhaust channels 14, respectively. Therefore, the static iron core vent 13, the inner cavity formed by the shell and the top cover, and the shell exhaust channels 14 constitute an exhaust and heat dissipation channel.

[0020] Correspondingly, the valve body 2 has a valve body exhaust channel 15 at the position corresponding to one of the housing exhaust channels, and the valve body exhaust channel 15 is connected to the exhaust port 12; the valve body 2 has a positioning plug 16 at the position corresponding to the other housing exhaust channel, which can seal the end of the housing exhaust channel on the one hand, and provide positioning during installation to facilitate assembly.

[0021] In this embodiment, the moving iron core 7 is also provided with a through hole in the middle. A rubber column 17 is installed in the hole. The sides of the rubber column 17 near both ends are provided with limiting protrusions to facilitate fixation after assembly. This forms rubber pads at the upper and lower ends of the moving iron core 7 to ensure the sealing performance when the moving iron core 7 is engaged with the valve port and the exhaust port of the stationary iron core.

[0022] In the above structure, sealing gaskets are provided between the valve body and the housing, and between the housing and the top cover, to ensure overall sealing.

[0023] In this embodiment, when the solenoid valve is energized, the moving iron core 7 moves upward under the electromagnetic attraction of the stationary iron core 6, overcoming the elastic force of the moving iron core return spring 8, and blocks the exhaust port 13 of the stationary iron core. At this time, the valve port 9 is in the open state, and the gas entering through the inlet 10 enters the valve body cavity through the valve port 9 and then exits from the working port 11. That is, the inlet 10 and the working port 11 are connected for air intake. When the power is off, the moving iron core 7 moves downward under the action of the moving iron core return spring 8, blocking the valve port 9 and opening the exhaust heat dissipation channel. At this time, the working port 11 and the exhaust port 12 are connected for exhaust. The gas enters the valve body exhaust channel 15 through the working port 11, the valve body cavity, the periphery of the moving iron core, the stationary iron core exhaust port 13, and the housing exhaust channel 14, and finally exits from the exhaust port 12. The exhaust heat dissipation channel flows upward through the center of the coil assembly and then back from the side, thereby carrying away heat and achieving heat dissipation.

[0024] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A solenoid valve for heat dissipation using exhaust, comprising a coil assembly and a valve body, wherein the coil assembly includes a housing, a stationary iron core, a moving iron core, and a return spring for the moving iron core, and the energization and de-energization of the coil assembly correspond to the up-and-down movement of the moving iron core, respectively; the valve body is provided with an air inlet, a working port, and an exhaust port; characterized in that, The valve body is provided with a valve port, which is connected to the air inlet; the working port is connected to the inner cavity of the valve body; the coil assembly is provided with an exhaust heat dissipation channel, which is connected to the exhaust port. When the moving iron core moves upward, it can block the exhaust and heat dissipation channel; when it moves downward, it can block the valve port.

2. The solenoid valve for heat dissipation using exhaust gas according to claim 1, characterized in that, The exhaust and heat dissipation channel includes a static iron core exhaust hole vertically disposed in the static iron core and at least one housing exhaust channel vertically disposed in the housing, wherein the static iron core exhaust hole and the housing exhaust channel are connected; the side wall of the valve body is provided with a valve body exhaust channel, one end of which is connected to a corresponding housing exhaust channel and the other end is connected to an exhaust port.

3. A solenoid valve for heat dissipation using exhaust gas according to claim 2, characterized in that, The housing has two exhaust channels, arranged diagonally along the housing.

4. A solenoid valve for heat dissipation using exhaust gas according to claim 3, characterized in that, Of the two housing exhaust channels, one housing exhaust channel corresponds to the valve body exhaust channel, and the other housing exhaust channel corresponds to the positioning plug provided on the valve body.

5. A solenoid valve for heat dissipation using exhaust gas according to claim 2, characterized in that, The top of the housing is fixedly provided with a top cover, and the static iron core exhaust hole and the housing exhaust channel are respectively connected to the inner cavity of the top cover.

6. A solenoid valve for heat dissipation using exhaust gas according to claim 1, characterized in that, The upper and lower end faces of the moving iron core are respectively provided with rubber pads.

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