Electromagnetic valve group module for hydrogen energy bicycle

Abstract

The utility model discloses an electromagnetic valve group module for a hydrogen energy bicycle. The electromagnetic valve group module comprises a confluence plate, a pressure detection device and two two-position three-way electromagnetic valves, the two-position three-way electromagnetic valve comprises an electromagnetic component, an iron core component and a valve body component; the iron core part comprises a static iron core, a movable iron core spring and a movable iron core; the valve body part is provided with an electromagnetic valve exhaust channel, an electromagnetic valve air outlet channel and an electromagnetic valve air inlet channel; a connecting channel is arranged in the valve body part; the confluence plate is provided with a confluence plate air inlet channel, a pressure detection channel, a confluence plate air outlet channel and a confluence plate exhaust channel. And the two two-position three-way electromagnetic valves are an electromagnetic valve A and an electromagnetic valve B respectively. The electromagnetic valve group module for the hydrogen energy bicycle has a specific structure and can respond according to the air pressure; and when the gas pressure of the fuel cell stack exceeds a set threshold value, the valve port is automatically opened to exhaust gas, so that the gas pressure in the hydrogen fuel cell is kept stable, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a solenoid valve group module for a hydrogen energy bicycle. Background Art

[0002] Solenoid valve is an industrial device controlled by electromagnetics. It is an automation basic component used to control fluids. It is a control component used to control actuators, not limited to hydraulic and pneumatic forms. It is used to adjust the direction, flow, speed and other parameters of the medium in industrial control systems. Its working principle is to control the mechanical movement of the valve core by controlling the current on and off of the electromagnet, thereby closing and starting different vents to achieve the purpose of controlling the fluid entering or exiting the mechanical component.

[0003] Hydrogen-powered bicycles use hydrogen as energy, generate electricity through the electrochemical reaction of fuel cells, have built-in hydrogen storage devices, and adopt hydrogen replacement or hydrogen filling methods. They are a safe and environmentally friendly means of travel. However, during the use of hydrogen fuel cells, the internal air pressure is high, which poses certain safety hazards. How to improve safety is an important issue facing the promotion of hydrogen energy power technology. Utility Model Content

[0004] The present application provides a solenoid valve group module for a hydrogen-powered bicycle. The solenoid valve group module for a hydrogen-powered bicycle of the present application has a specific structure and can react according to the size of the air pressure; when used in a hydrogen fuel cell, when the air pressure of the fuel cell stack exceeds a set threshold, the valve port is automatically opened to exhaust air, so that the air pressure in the hydrogen fuel cell remains stable, thereby improving safety.

[0005] The technical solution of this application is:

[0006] The solenoid valve group module for hydrogen energy bicycle comprises a manifold, a pressure detection device and two two-position three-way solenoid valves; the two two-position three-way solenoid valves are respectively arranged at the left and right ends of the upper surface of the manifold; the pressure detection device is arranged on the manifold and located between the two two-position three-way solenoid valves; the two-position three-way solenoid valve comprises an electromagnetic component, an iron core component and a valve body component; the iron core component comprises a static iron core, a moving iron core spring and a moving iron core arranged in sequence; the static iron core is fixed inside the electromagnetic component; the moving iron core is provided with a The valve plug head; the valve body component is provided with an electromagnetic valve exhaust channel, an electromagnetic valve outlet channel and an electromagnetic valve inlet channel in sequence; a sealing plug is provided on the side of the electromagnetic valve inlet channel away from the moving iron core, a tightening spring is provided between the sealing plug and the valve body component, and a connecting rod is provided between the sealing plug and the moving iron core, so that the sealing plug can move with the moving iron core; a connecting channel is provided inside the valve body component; when the power is off, the moving iron core moves away from the static iron core under the action of the spring force of the moving iron core spring, the valve plug head abuts against one end of the electromagnetic valve exhaust channel, and the sealing plug is compressed The tensioning spring is away from the electromagnetic valve outlet channel, so that the electromagnetic valve inlet channel and the electromagnetic valve outlet channel are connected; when the power is turned on, the moving iron core is away from the exhaust channel under the action of the electromagnetic force, and the sealing plug closes the electromagnetic valve outlet channel under the action of the spring force of the tensioning spring, so that the electromagnetic valve inlet channel, the connecting channel and the electromagnetic valve exhaust channel are connected; the manifold is provided with a manifold inlet channel, a pressure detection channel, a manifold outlet channel and a manifold exhaust channel; the two two-position three-way solenoid valves are respectively an A solenoid valve and a B solenoid valve; the manifold inlet One end of the air channel is connected to the outside world, and the other end is connected to the solenoid valve air inlet channel of the A solenoid valve; one end of the pressure detection channel is connected to the solenoid valve air outlet channel of the A solenoid valve, and the other end is connected to the solenoid valve exhaust channel of the B solenoid valve, and the middle part of the pressure detection channel is connected to the pressure detection device; one end of the manifold air outlet channel is connected to the solenoid valve air inlet channel of the B solenoid valve, and the other end is connected to the outside world; one end of the manifold exhaust channel is connected to the solenoid valve exhaust channel of the A solenoid valve, and the other end is connected to the outside world.

[0007] Compared with the prior art, the solenoid valve group module for hydrogen energy bicycle of the present application has a specific structure, and when working, it can keep the air pressure in the hydrogen fuel cell stable and has good safety. Specifically, when installed on the hydrogen fuel cell, the manifold air inlet channel is connected to the hydrogen fuel cell, and the airflow inside the hydrogen fuel cell enters the A solenoid valve through the manifold air inlet channel, and then enters the pressure detection channel inside the manifold from the solenoid valve outlet channel of the A solenoid valve, and the pressure detection device can detect the air pressure in the channel in real time; when the air pressure in the channel exceeds the set threshold, the A solenoid valve is energized, so that the airflow in the manifold air inlet channel cannot enter the pressure detection channel, but is discharged to the outside from the solenoid valve exhaust channel of the A solenoid valve; After a set period of time (10 seconds is acceptable), the built-in controller controls the A solenoid valve to cut off the power. At this time, the following two situations will occur: ① The air pressure in the pressure detection channel is greater than the air pressure inside the hydrogen fuel cell, and the airflow in the pressure detection channel will flow back to the inside of the hydrogen fuel cell. As the airflow retained in the pressure detection channel flows back, the pressure detection device detects that the air pressure drops below the threshold and keeps the A solenoid valve in the power-off state; ② The air pressure in the pressure detection channel is lower than the air pressure inside the hydrogen fuel cell (that is, the air pressure inside the hydrogen fuel cell is still too high), the A solenoid valve is energized, and after a set period of time (10 seconds) the built-in controller controls the A solenoid valve to cut off the power; repeat the above operations to keep the air pressure in the hydrogen fuel cell stable.

[0008] As an optimization, in the aforementioned solenoid valve group module for hydrogen-powered bicycles, an overflow channel is provided inside the manifold, one end of the overflow channel is located on the pressure detection channel and close to the manifold air inlet channel, and the other end is connected to the outside world; an overflow valve is provided on the overflow channel. With this structure, an overflow channel is provided on the pressure detection channel, so that when the air pressure of the airflow entering the pressure detection channel is too high, the overflow valve automatically opens, and the airflow is discharged to the outside world through the overflow valve, thereby preventing the pressure detection device from being damaged by excessive air pressure.

[0009] As an optimization, in the aforementioned solenoid valve group module for hydrogen-powered bicycles, the overflow channel and the outside are connected at the place where the overflow channel is connected, and the exhaust channel of the manifold is connected at the outside. With this structure, a silencer is set at the place where the airflow is discharged to the outside to perform a silencer treatment, thereby reducing noise pollution.

[0010] As an optimization, in the aforementioned solenoid valve group module for hydrogen energy bicycle, connectors are provided at the connection points between the intake channel of the manifold and the outside world, and the connection points between the exhaust channel of the manifold and the outside world. With this structure, the provision of connectors makes it easier to connect the solenoid valve group module for hydrogen energy bicycle with external equipment.

[0011] As an optimization, in the aforementioned solenoid valve assembly module for hydrogen-powered bicycles, the fitting point between one end of the solenoid valve exhaust channel and the valve plug is conical. With this structure, the solenoid valve exhaust channel and the valve plug are in line contact, which reduces the machining accuracy requirements of the valve plug contact surface while ensuring the sealing performance.

[0012] As an optimization, in the aforementioned solenoid valve group module for hydrogen energy bicycle, the valve plug is fixed to the moving iron core by a pressure ring. With this structure, the valve plug is fixed by a pressure ring, which ensures the firmness of the valve plug and is more convenient to install.

[0013] As an optimization, in the aforementioned solenoid valve group module for hydrogen energy bicycles, a sealing gasket is provided at the connection between the valve body component and the manifold. With this structure, the sealing gasket can play a role in strengthening the sealing of the connection between the valve body component and the manifold; at the same time, the sealing gasket can be replaced, and if damaged, it can be replaced separately, which is convenient and efficient.

[0014] As an optimization, in the aforementioned solenoid valve group module for hydrogen energy bicycle, the pressure detection device is a pressure sensor. Using a pressure sensor as a pressure detection device has low cost, small space occupation, and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the solenoid valve module for the hydrogen energy bicycle of this application. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the solenoid valve module for the hydrogen energy bicycle of this application. Figure 2 ;

[0017] Figure 3 yes Figure 2 A front view of

[0018] Figure 4 yes Figure 3 AA cross-sectional view (solenoid valve power-off state);

[0019] Figure 5 yes Figure 3 Middle BB section view (solenoid valve de-energized state);

[0020] Figure 6 yes Figure 3 Cross-sectional view in the middle AA direction (solenoid valve energized state);

[0021] Figure 7 yes Figure 3 Cross-sectional view in the middle BB direction (solenoid valve energized state);

[0022] Figure 8 yes Figure 6Schematic diagram of some structures in ;

[0023] Fig. 9 yes Figure 1 Left view of

[0024] Fig.10 yes Fig. 9 Middle CC section;

[0025] Fig.11 yes Fig. 9 Cross-section along DD direction.

[0026] The markings in the accompanying drawings are: 1-manifold, 11-manifold air inlet channel, 12-pressure detection channel, 13-manifold air outlet channel, 14-manifold exhaust channel, 15-overflow channel; 2-pressure detection device; 3-two-position three-way solenoid valve, 301-A solenoid valve, 302-B solenoid valve, 31-electromagnetic component, 32-iron core component, 321-static iron core, 322-moving iron core spring, 323-moving iron core, 33-valve body component, 331-solenoid valve exhaust channel, 332-solenoid valve air outlet channel, 333-solenoid valve air inlet channel, 334-connecting channel, 34-valve plug, 35-sealing plug, 36-connecting rod, 37-tightening spring; 4-overflow valve; 5-muffler; 6-connecting head; 7-pressure ring; 8-sealing gasket. DETAILED DESCRIPTION

[0027] The present application is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present application.

[0028] Example (see Figures 1 to 11 ):

[0029] A solenoid valve group module for a hydrogen energy bicycle comprises a manifold 1, a pressure detection device 2 and two two-position three-way solenoid valves 3; the two two-position three-way solenoid valves 3 are respectively arranged at the left and right ends of the upper surface of the manifold 1; the pressure detection device 2 is arranged on the manifold 1 and is located between the two two-position three-way solenoid valves 3; the two-position three-way solenoid valve 3 comprises an electromagnetic component 31, an iron core component 32 and a valve body component 33; the iron core component 32 comprises a static iron core 321, a moving iron core spring 322 and a moving iron core 323 which are arranged in sequence; the static iron core 321 is fixed inside the electromagnetic component 31; a valve plug 34 is provided on the side of the moving iron core 323 away from the static iron core 321; the valve body The component 33 is provided with an electromagnetic valve exhaust channel 331, an electromagnetic valve outlet channel 332 and an electromagnetic valve inlet channel 333 in sequence; a sealing plug 35 is provided on the side of the electromagnetic valve inlet channel 333 away from the moving iron core 323, a tightening spring 37 is provided between the sealing plug 35 and the valve body component 33, and a connecting rod 36 is provided between the sealing plug 35 and the moving iron core 323, so that the sealing plug 35 can move with the moving iron core 323; a connecting channel 334 is provided inside the valve body component 33; when the power is off, the moving iron core 323 is away from the static iron core 321 under the action of the spring force of the moving iron core spring 322, and the valve plug head 34 abuts against one end of the electromagnetic valve exhaust channel 331, and the sealing plug 3 The compression spring 37 is moved away from the electromagnetic valve outlet channel 332, so that the electromagnetic valve inlet channel 333 is connected with the electromagnetic valve outlet channel 332; when the power is turned on, the moving iron core 323 is moved away from the exhaust channel 331 under the action of the electromagnetic force, and the sealing plug 35 closes the electromagnetic valve outlet channel 332 under the action of the spring force of the compression spring 37, so that the electromagnetic valve inlet channel 333, the connecting channel 334 and the electromagnetic valve exhaust channel 331 are connected; the manifold 1 is provided with a manifold inlet channel 11, a pressure detection channel 12, a manifold outlet channel 13 and a manifold exhaust channel 14; the two two-position three-way solenoid valves 3 are respectively an A solenoid valve 301 and a B solenoid valve 302; One end of the busbar air inlet channel 11 is connected to the outside world, and the other end is connected to the solenoid valve air inlet channel 333 of the A solenoid valve 301; one end of the pressure detection channel 12 is connected to the solenoid valve air outlet channel 332 of the A solenoid valve 301, and the other end is connected to the solenoid valve exhaust channel 331 of the B solenoid valve 302, and the middle part of the pressure detection channel 12 is connected to the pressure detection device 2; one end of the busbar air outlet channel 13 is connected to the solenoid valve air inlet channel 333 of the B solenoid valve 302, and the other end is connected to the outside world; one end of the busbar exhaust channel 14 is connected to the solenoid valve exhaust channel 331 of the A solenoid valve 301, and the other end is connected to the outside world.

[0030] In this embodiment, an overflow channel 15 is provided inside the manifold 1, one end of the overflow channel 15 is located on the pressure detection channel 12 and close to the manifold air inlet channel 11, and the other end is connected to the outside; an overflow valve 4 is provided on the overflow channel 15. The overflow channel 15 is provided on the pressure detection channel 12, so that when the air pressure of the airflow entering the pressure detection channel 12 is too high, the overflow valve 15 automatically opens, and the airflow is discharged to the outside through the overflow valve 15, thereby preventing the pressure detection device 2 from being damaged by excessive air pressure.

[0031] In this embodiment, the overflow channel 15 and the place where the manifold exhaust channel 14 are connected to the outside are both provided with a muffler 5. The muffler 5 is provided where the airflow is discharged to the outside to perform muffler processing, thereby reducing noise pollution.

[0032] In this embodiment, the junction between the intake channel 11 and the outside and the outlet channel 13 of the manifold are provided with connectors 6. The connectors 6 make it easier to connect the solenoid valve module for hydrogen-powered bicycles with external equipment.

[0033] In this embodiment, the matching part of one end of the electromagnetic valve exhaust channel 331 and the valve plug head 34 is tapered. The electromagnetic valve exhaust channel 331 and the valve plug head 34 are in line contact, which reduces the machining accuracy requirement of the contact surface of the valve plug head 34 while ensuring the sealing performance.

[0034] In this embodiment, the valve plug head 34 is fixed to the moving iron core 323 by means of a pressure ring 7. The valve plug head 323 is fixed by means of a pressure ring 7, which ensures the firmness of the valve plug head 323 and is convenient for installation.

[0035] In this embodiment, a sealing gasket 8 is provided at the connection between the valve body component 33 and the manifold 1. The sealing gasket 8 can enhance the sealing performance of the connection between the valve body component 33 and the manifold 1; and the sealing gasket 8 can be replaced. If it is damaged, it can be replaced separately, which is convenient and efficient.

[0036] In this embodiment, the pressure detection device 2 is a pressure sensor. Using a pressure sensor as a pressure detection device has low cost, occupies less space, and is easy to assemble.

[0037] When the solenoid valve group module for hydrogen energy bicycle of this embodiment is installed on the hydrogen fuel cell for use, the connector 6 on the manifold air inlet channel 11 is connected to the hydrogen fuel cell; the airflow inside the hydrogen fuel cell enters the A solenoid valve 301 through the manifold air inlet channel 11, and then enters the pressure detection channel 12 inside the manifold 1 from the solenoid valve outlet channel 332 of the A solenoid valve 301, and the pressure detection device 2 can detect the air pressure in the channel in real time; when the air pressure in the channel exceeds the set threshold value, the A solenoid valve 301 and the B solenoid valve 302 are both energized, so that the airflow in the manifold air inlet channel 11 cannot enter the pressure detection channel 12, but is discharged to the outside from the solenoid valve exhaust channel 331 of the A solenoid valve 301; the built-in controller is set After a period of time (10 seconds), the A solenoid valve 301 is controlled to be powered off. At this time, the following two situations will occur: ① The air pressure in the pressure detection channel 12 is greater than the air pressure inside the hydrogen fuel cell, and the airflow in the pressure detection channel 12 will flow back to the inside of the hydrogen fuel cell. As the airflow retained in the pressure detection channel 12 flows back, the pressure detection device 2 detects that the air pressure drops below the threshold value, and keeps the A solenoid valve 301 powered off; ② The air pressure in the pressure detection channel 12 is lower than the air pressure inside the hydrogen fuel cell (that is, the air pressure inside the hydrogen fuel cell is still too high), the A solenoid valve 301 is energized, and the built-in controller controls the A solenoid valve 301 to be powered off after a set period of time (10 seconds); repeat the above process to keep the air pressure in the hydrogen fuel cell stable.

[0038] When the solenoid valve group module for the hydrogen energy bicycle of this embodiment is used, the connector 6 on the manifold outlet channel 13 can be connected to an external device; when the A solenoid valve 301 is powered off and the B solenoid valve 302 is powered on, the excess airflow inside the hydrogen fuel cell can be transmitted to the external device for reasonable use.

[0039] The above general description of the utility model involved in this application and the description of its specific implementation method should not be understood as limiting the technical solution of the utility model. Based on the disclosure of this application, those skilled in the art can add, reduce or combine the disclosed technical features in the above general description or / and the specific implementation method (including examples) without violating the constituent elements of the utility model involved, to form other technical solutions within the scope of protection of this application.

Claims

1. A solenoid valve module for a hydrogen energy bicycle, characterized in that: It comprises a manifold (1), a pressure detection device (2) and two two-position three-way solenoid valves (3); the two two-position three-way solenoid valves (3) are respectively arranged at the left and right ends of the upper surface of the manifold (1); the pressure detection device (2) is arranged on the manifold (1) and is located between the two two-position three-way solenoid valves (3); The two-position three-way solenoid valve (3) comprises an electromagnetic component (31), an iron core component (32) and a valve body component (33); the iron core component (32) comprises a static iron core (321), a moving iron core spring (322) and a moving iron core (323) which are arranged in sequence; the static iron core (321) is fixed inside the electromagnetic component (31); a valve plug (34) is arranged on a side of the moving iron core (323) away from the static iron core (321); and the valve body component (33) is provided with a solenoid valve exhaust channel (331) in sequence. , a solenoid valve air outlet channel (332) and a solenoid valve air inlet channel (333); a sealing plug (35) is provided on the side of the solenoid valve air inlet channel (333) away from the moving iron core (323); a tightening spring (37) is provided between the sealing plug (35) and the valve body component (33); a connecting rod (36) is provided between the sealing plug (35) and the moving iron core (323), so that the sealing plug (35) can move with the moving iron core (323); a connecting channel (334) is provided inside the valve body component (33); When the power is off, the moving iron core (323) moves away from the static iron core (321) under the action of the spring force of the moving iron core spring (322), the valve plug head (34) abuts against one end of the electromagnetic valve exhaust channel (331), and the sealing plug (35) compresses the pressing spring (37) away from the electromagnetic valve outlet channel (332), so that the electromagnetic valve inlet channel (333) and the electromagnetic valve outlet channel (332) are connected; when the power is on, the moving iron core (323) moves away from the exhaust channel (331) under the action of the electromagnetic force, and the sealing plug (35) closes the electromagnetic valve outlet channel (332) under the action of the spring force of the pressing spring (37), so that the electromagnetic valve inlet channel (333), the connecting channel (334) and the electromagnetic valve exhaust channel (331) are connected; The manifold (1) is provided with a manifold air inlet channel (11), a pressure detection channel (12), a manifold air outlet channel (13) and a manifold air exhaust channel (14); the two two-position three-way solenoid valves (3) are respectively an A solenoid valve (301) and a B solenoid valve (302); one end of the manifold air inlet channel (11) is connected to the outside, and the other end is connected to the solenoid valve air inlet channel (333) of the A solenoid valve (301); one end of the pressure detection channel (12) is connected to the solenoid valve of the A solenoid valve (301); The valve outlet channel (332) is connected, and the other end is connected to the solenoid valve exhaust channel (331) of the B solenoid valve (302); the middle part of the pressure detection channel (12) is connected to the pressure detection device (2); one end of the manifold outlet channel (13) is connected to the solenoid valve inlet channel (333) of the B solenoid valve (302), and the other end is connected to the outside world; one end of the manifold exhaust channel (14) is connected to the solenoid valve exhaust channel (331) of the A solenoid valve (301), and the other end is connected to the outside world.

2. The solenoid valve assembly module for a hydrogen-powered bicycle according to claim 1 is characterized in that: An overflow channel (15) is provided inside the manifold (1), one end of the overflow channel (15) is located on the pressure detection channel (12) and close to the manifold air inlet channel (11), and the other end is connected to the outside; an overflow valve (4) is provided on the overflow channel (15).

3. The solenoid valve assembly module for a hydrogen-powered bicycle according to claim 2 is characterized in that: A silencer sheet (5) is provided at the place where the overflow channel (15) is connected to the outside world, and at the place where the collector plate exhaust channel (14) is connected to the outside world.

4. The solenoid valve assembly module for a hydrogen-powered bicycle according to claim 3 is characterized in that: Connectors (6) are provided at the connection point between the gas inlet channel (11) of the baffle plate and the outside world, and at the connection point between the gas outlet channel (13) of the baffle plate and the outside world.

5. The solenoid valve assembly module for a hydrogen-powered bicycle according to claim 4, characterized in that: The fitting portion between one end of the electromagnetic valve exhaust passage (331) and the valve plug head (34) is in a cone shape.

6. The solenoid valve assembly module for a hydrogen-powered bicycle according to claim 5, characterized in that: The valve plug head (34) is fixed on the moving iron core (323) via a pressure ring (7).

7. The solenoid valve assembly module for a hydrogen-powered bicycle according to any one of claims 1 to 6, characterized in that: A sealing gasket (8) is provided at the connection between the valve body component (33) and the manifold (1).

8. The solenoid valve assembly module for a hydrogen-powered bicycle according to claim 7, characterized in that: The pressure detection device (2) is a pressure sensor.

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