Electromagnetic switch valve structure with exhaust hole

Abstract

The utility model discloses an electromagnetic switch valve structure with an exhaust hole, which relates to the technical field of hydrogen fuel cell automobiles and comprises an outer cover and an exhaust component, secondary plastic coating is arranged on the inner side of the outer cover, an enameled wire is arranged on the inner side of the secondary plastic coating, a framework is arranged on the inner side of the enameled wire, and the exhaust component is arranged on the outer cover. The exhaust assembly used for exhaust treatment is arranged in the lower end of the outer cover and comprises a guide sleeve, an upper pouring opening, a connecting base and an exhaust hole, and the upper pouring opening is formed in the upper end of the interior of the guide sleeve. According to the electromagnetic switch valve structure with the exhaust hole, when the coil is powered on, the magnetic core assembly is driven by electromagnetic force to overcome spring force to be attracted upwards, gas at a port P is exhausted from the exhaust hole, when the coil is powered off, the magnetic core assembly returns downwards under the action of the spring force, and the port P is sealed by the rubber diaphragm; opening and closing of a gas circuit are controlled through power on and power off of the electromagnetic valve, so that gas in the valve cavity is effectively discharged, and the working stability and reliability of the electromagnetic valve are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cell vehicles, and specifically relates to an electromagnetic switch valve structure with an exhaust hole. Background Technique

[0002] As a clean energy technology, hydrogen fuel cells have received extensive attention. However, the electromagnetic valve plays a crucial role in the hydrogen fuel cell system and needs to meet requirements such as high sealing performance, fast response, and long service life. However, when the existing electromagnetic valve is closed, gas may accumulate in the valve cavity, resulting in pressure imbalance and affecting the normal operation of the electromagnetic valve.

[0003] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an electromagnetic switch valve structure with an exhaust hole is provided. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electromagnetic switch valve structure with an exhaust hole to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An electromagnetic switch valve structure with an exhaust hole, including an outer cover and an exhaust component. A secondary plastic coating is arranged inside the outer cover, and an enameled wire is arranged inside the secondary plastic coating. A skeleton is arranged inside the enameled wire. The exhaust component for exhaust treatment is arranged inside the lower end of the outer cover, and the exhaust component includes a guide sleeve, an upper inverted opening, a connecting seat, and an exhaust hole. An upper inverted opening is opened at the upper end inside the guide sleeve, and a connecting seat is connected to the lower end of the upper inverted opening. An exhaust hole is opened on the surface of the connecting seat.

[0006] Further, a base is connected to the outside of the lower end of the outer cover, and an O-ring seal is arranged at the left end of the base.

[0007] Further, a rubber diaphragm is arranged at the lower end of the guide sleeve, and a front yoke is arranged above the guide sleeve.

[0008] Further, a rubber gasket is arranged at the upper end of the front yoke, and the shape of the rubber gasket is circular.

[0009] Further, a spring is arranged inside the skeleton, and the center points of the spring and the rubber diaphragm are located in the same vertical plane.

[0010] Further, a magnetic core is arranged outside the spring, and a rear yoke is arranged above the magnetic core.

[0011] Further, a lower limit block is arranged on the inner wall of the skeleton, and a buffer component for buffering is arranged above the lower limit block.

[0012] Further, the buffer assembly includes an upper limit block and a buffer ring, and the buffer ring is installed at the lower end of the upper limit block.

[0013] The utility model provides an electromagnetic switch valve structure with an exhaust hole, having the following beneficial effects:

[0014] 1. In the utility model, the guide sleeve and the connecting seat are an integrated structure. The size of the exhaust port is φ0.5mm, and the distance from the center is 6.5mm. When the coil is energized, the magnetic core assembly is driven by the electromagnetic force to overcome the spring force and suck upward. The gas at port P is discharged from the exhaust port. When the coil is de-energized, the magnetic core assembly returns downward under the action of the spring force, and the rubber diaphragm seals port P. By controlling the energization and de-energization of the solenoid valve, the opening and closing of the gas path are controlled, so as to effectively discharge the gas in the valve cavity, improving the working stability and reliability of the solenoid valve.

[0015] 2. In the utility model, the rubber diaphragm ensures that while meeting the exhaust in the valve cavity, it does not affect the sealing performance of the base working cavity. The O-ring, rubber gasket, and rubber diaphragm are all made of hydrogen-resistant materials to adapt to the working environment of the hydrogen fuel cell. The enameled wire is wound and welded outside the skeleton and then obtained a threaded tube through secondary plastic coating. The design of the electromagnetic coil can provide sufficient driving force to ensure the rapid response of the magnetic core. The outer cover is outside the threaded tube to prevent water vapor and impurities from entering the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall sectional structure schematic diagram of an electromagnetic switch valve structure with an exhaust hole of the utility model;

[0017] Figure 2 is the sectional structure schematic diagram of the exhaust assembly of an electromagnetic switch valve structure with an exhaust hole of the utility model;

[0018] Figure 3 is the structure schematic diagram of the exhaust assembly of an electromagnetic switch valve structure with an exhaust hole of the utility model.

[0019] In the figure: 1. Outer cover; 2. Secondary plastic coating; 3. Enameled wire; 4. Skeleton; 5. Exhaust assembly; 501. Guide sleeve; 502. Upper inverted opening; 503. Connecting seat; 504. Exhaust hole; 6. Base; 7. O-ring; 8. Rubber diaphragm; 9. Front yoke; 10. Rubber gasket; 11. Spring; 12. Magnetic core; 13. Rear yoke; 14. Lower limit block; 15. Buffer assembly; 1501. Upper limit block; 1502. Buffer ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] As Figure 1 shown, a structure of an electromagnetic solenoid valve with exhaust holes includes an outer cover 1 and an exhaust assembly 5. A secondary plastic coating 2 is provided inside the outer cover 1. The outer cover 1 plays a role in preventing water vapor and impurities from entering the solenoid valve outside the threaded tube. And inside the secondary plastic coating 2, there is an enameled wire 3. After the enameled wire 3 is wound and welded outside the skeleton 4 and then through the secondary plastic coating 2, a threaded tube is obtained. The design of the electromagnetic coil can provide sufficient driving force to ensure the rapid response of the magnetic core 12. Inside the enameled wire 3, there is a skeleton 4. The outside of the lower end of the outer cover 1 is connected to a base 6. And at the left end of the base 6, there is an O-ring 7. At the lower end of the guide sleeve 501, there is a rubber diaphragm 8. The rubber diaphragm 8 ensures exhausting the valve cavity while not affecting the sealing performance of the working cavity of the base 6. And above the guide sleeve 501, there is a front yoke 9. At the upper end of the front yoke 9, there is a rubber gasket 10. The O-ring 7, the rubber gasket 10, and the rubber diaphragm 8 are all made of hydrogen-resistant materials to adapt to the working environment of the hydrogen fuel cell. And the shape of the rubber gasket 10 is circular. Inside the skeleton 4, there is a spring 11. And the center points of the spring 11 and the rubber diaphragm 8 are located in the same vertical plane. Outside the spring 11, there is a magnetic core 12. And above the magnetic core 12, there is a rear yoke 13. On the inner wall of the skeleton 4, there is a lower limit block 14. And above the lower limit block 14, there is a buffer assembly 15 for buffering. The buffer assembly 15 includes an upper limit block 1501 and a buffer ring 1502. And the lower end of the upper limit block 1501 is installed with the buffer ring 1502.

[0022] As Figure 2 and Figure 3 shown, the exhaust assembly 5 for exhaust treatment is arranged inside the lower end of the outer cover 1. And the exhaust assembly 5 includes a guide sleeve 501, an upper inverted port 502, a connecting seat 503, and an exhaust hole 504. An upper inverted port 502 is opened at the upper end inside the guide sleeve 501. The guide sleeve 501 and the connecting seat 503 are an integral structure. The size of the exhaust port 504 is φ0.5mm, and the distance from the center is 6.5mm. When the coil is energized, the magnetic core 12 assembly is driven by the electromagnetic force to overcome the force of the spring 11 and suck upward. The gas at the P port is discharged from the exhaust port. When the coil is de-energized, the magnetic core 12 assembly returns downward under the action of the spring 11 force. The rubber diaphragm 8 seals the P port. By controlling the on-off of the solenoid valve, the opening and closing of the gas path are controlled, so as to effectively discharge the gas in the valve cavity, improving the working stability and reliability of the solenoid valve. And the lower end of the upper inverted port 502 is connected to the connecting seat 503. The surface of the connecting seat 503 is provided with an exhaust hole 504.

[0023] In summary, for the structure of the electromagnetic solenoid valve with exhaust holes, first according to Figures 1 - 3In the structure shown, first, the enameled wire 3 is wound and welded onto the skeleton 4, and then the coil is secondarily coated with plastic 2 to obtain a solenoid. The rear yoke 13, O-ring seal 7, spring 11, magnetic core 12 assembly, guide sleeve 501, rubber gasket 10, and outer cover 1 are assembled. Finally, the assembled outer cover 1 and the base 6 are riveted and pressed tightly. The outer cover 1 plays a role in preventing moisture and impurities from entering the solenoid valve outside the threaded pipe. Among them, the O-ring seal 7, rubber gasket 10, and rubber diaphragm 8 are all made of hydrogen-resistant materials to adapt to the working environment of the hydrogen fuel cell. When in use, when the coil is energized, the magnetic core 12 assembly is driven by the electromagnetic force to overcome the force of the spring 11 and suck upward, and the gas at the P port is discharged from the exhaust port. When the coil is de-energized, the magnetic core 12 assembly returns downward under the action of the spring 11 force, and the rubber diaphragm 8 seals the P port. By controlling the energization and de-energization of the solenoid valve, the opening and closing of the gas path are controlled, thereby effectively discharging the gas in the valve cavity, improving the working stability and reliability of the solenoid valve. At this time, the rubber diaphragm 8 ensures that while satisfying the exhaust in the valve cavity, it does not affect the sealing performance of the working cavity of the base 6. The design of the electromagnetic coil can provide sufficient driving force to ensure the rapid response of the magnetic core 12.

[0024] The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A solenoid switch valve structure with an exhaust hole, comprising an outer cover (1) and an exhaust assembly (5), characterized in that: The inner side of the outer cover (1) is provided with a secondary plastic coating (2), and the inner side of the secondary plastic coating (2) is provided with an enameled wire (3), and the inner side of the enameled wire (3) is provided with a frame (4). The exhaust component (5) for exhaust treatment is arranged inside the lower end of the outer cover (1), and the exhaust component (5) comprises a guide sleeve (501), an upper pouring mouth (502), a connecting seat (503) and an exhaust hole (504). The upper end of the guide sleeve (501) is provided with an upper pouring mouth (502), and the lower end of the upper pouring mouth (502) is connected to the connecting seat (503), and the surface of the connecting seat (503) is provided with an exhaust hole (504).

2. The electromagnetic switch valve structure with exhaust hole according to claim 1, characterized in that: The outer side of the lower end of the outer cover (1) is connected to a base (6), and an O-type sealing ring (7) is provided at the left end of the base (6).

3. The electromagnetic switch valve structure with exhaust hole according to claim 1, characterized in that: A rubber diaphragm (8) is arranged at the lower end of the guide sleeve (501), and a front yoke iron (9) is arranged above the guide sleeve (501).

4. The electromagnetic switch valve structure with exhaust hole according to claim 3, characterized in that: A rubber sealing pad (10) is provided at the upper end of the front yoke (9), and the rubber sealing pad (10) is in the shape of a circular ring.

5. The electromagnetic switch valve structure with exhaust hole according to claim 1, characterized in that: A spring (11) is arranged inside the frame (4), and the center points of the spring (11) and the rubber diaphragm (8) are located on the same vertical plane.

6. The electromagnetic switch valve structure with exhaust hole according to claim 5, characterized in that: A magnetic core (12) is arranged outside the spring (11), and a back yoke iron (13) is arranged above the magnetic core (12).

7. The electromagnetic switch valve structure with exhaust hole according to claim 1, characterized in that: The inner wall of the frame (4) is provided with a lower limit block (14), and a buffer component (15) for buffering is provided above the lower limit block (14).

8. The electromagnetic switch valve structure with exhaust hole according to claim 7, characterized in that: The buffer assembly (15) comprises an upper limit block (1501) and a buffer ring (1502), and the buffer ring (1502) is installed at the lower end of the upper limit block (1501).

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