Hydrogen electromagnetic valve sealing structure and electromagnetic valve

Abstract

The utility model discloses a hydrogen solenoid valve sealing structure and a solenoid valve, the hydrogen solenoid valve sealing structure realizes indirect connection between a valve core and a sealing element through a sealing part made of an elastic material, effectively avoids direct compression of the end part of the valve core on the sealing element, reduces excessive deformation of the sealing element, and improves the sealing performance of the sealing element. Therefore, the service life of the sealing element is obviously prolonged; the sealing part is embedded in the embedding groove in the end part of the valve core, so that not only is accurate positioning and mounting realized, but also a deformation space is provided for the sealing part, and the moderate compression amount of the O-shaped sealing ring is ensured; after the sealing element is subjected to heat treatment, the hardness, the wear resistance and the corrosion resistance of the sealing element are enhanced, the service life of the electromagnetic valve is further prolonged, and the stable sealing performance is maintained.

Description

Technical Field

[0001] The utility model belongs to the technical field of solenoid valves, and in particular relates to a hydrogen solenoid valve sealing structure and a solenoid valve. Background Art

[0002] The hydrogen solenoid valve is a key component in hydrogen fuel cell systems, primarily responsible for controlling the hydrogen supply, including on / off flow and regulating the flow rate. Its sealing mechanism relies on direct contact between the seal and the valve core. When pressurized, the end of the valve core compresses the seal to achieve a seal. However, under high pressure, the small contact surface of the valve core can lead to excessive deformation of the seal, resulting in reduced sealing performance or even failure, impacting the stability and reliability of the hydrogen supply system. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a hydrogen solenoid valve sealing structure, comprising a valve core and a sealing member, wherein a sealing portion is provided at the end of the valve core, and the valve core is sealed and connected to the sealing member through the sealing portion.

[0004] Furthermore, the sealing portion is embedded in the end portion of the valve core.

[0005] Furthermore, the valve core is provided with an embedding groove adapted to the sealing portion.

[0006] Furthermore, the sealing portion is an O-ring.

[0007] Furthermore, the sealing member is a heat-treated sealing member.

[0008] A solenoid valve comprises a front bell, a magnetic isolation sleeve, a rear bell, an armature and a hydrogen solenoid valve sealing structure, wherein the valve core is connected to the rear bell, and the sealing member is connected to the armature.

[0009] The beneficial effects of the present invention are as follows: the hydrogen solenoid valve sealing structure realizes an indirect connection between the valve core and the seal by adopting a sealing part made of elastic material, effectively avoiding direct pressure of the valve core end on the seal, reducing excessive deformation of the seal, and thus significantly improving the service life of the seal; the sealing part is embedded in the embedding groove at the end of the valve core, which not only realizes precise positioning and installation, but also provides deformation space for the sealing part, ensuring that the compression amount of the O-ring is moderate; after the seal is heat treated, its hardness, wear resistance and corrosion resistance are enhanced, further extending the service life of the solenoid valve and maintaining stable sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A three-dimensional diagram of an existing product;

[0011] Figure 2This is the main view of the existing product;

[0012] Figure 3 for Figure 2 Schematic diagram of the cross section in the AA direction;

[0013] Figure 4 A perspective view of the present invention;

[0014] Figure 5 It is the front view of the present invention;

[0015] Figure 6 for Figure 5 Schematic diagram of the cross section in the BB direction

[0016] Figure 7 for Figure 6 Enlarged view of part C in the middle.

[0017] The meaning of the numbers in the figure are: 1-valve core; 2-seal; 3-sealing part; 4-embedded groove; 5-front socket; 6-magnetic isolation sleeve; 7-tail socket; 8-armature. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-7 The utility model provides the following technical solutions: a hydrogen solenoid valve sealing structure, including a valve core 1 and a sealing member 2, wherein a sealing portion 3 is provided at the end of the valve core 1, and the valve core 1 is sealed and connected to the sealing member 2 through the sealing portion 3; the sealing portion 3 is made of a deformable elastic material.

[0020] With the above structure, when the valve core 1 moves toward the seal 2, the valve core 1 is indirectly connected to the seal 2 through the sealing part 3, avoiding direct pressure of the end of the valve core 1 on the seal 2, avoiding excessive deformation of the seal 2, and thus improving the service life of the seal 2.

[0021] In this embodiment, the sealing portion 3 is embedded in the end of the valve core 1; the valve core 1 is provided with an embedding groove 4 adapted to the sealing portion 3; and the sealing portion 3 is an O-ring.

[0022] With the above structure, the embedding groove 4 is used to position and install the sealing part 3, and can also provide a certain deformation space when the sealing part 3 is deformed, so that the O-ring has a certain compression amount.

[0023] In this embodiment, the sealing member 2 is a sealing member 2 that has been heat-treated.

[0024] With the above structure, the seal 2 is heat-treated to enhance its hardness, wear resistance and corrosion resistance, thereby extending the service life of the solenoid valve and maintaining stable sealing performance.

[0025] A solenoid valve comprises a front bell 5, a magnetic isolation sleeve 6, a rear bell 7, an armature 8 and a hydrogen solenoid valve sealing structure, wherein the valve core 1 is connected to the rear bell 7, and the sealing member 2 is connected to the armature 8.

[0026] The solenoid valve with the solenoid valve sealing structure has a longer service life and maintains stable sealing performance.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen solenoid valve sealing structure, comprising a valve core and a sealing member, characterized in that: A sealing portion is provided at the end of the valve core, and the valve core is sealedly connected to the sealing member via the sealing portion.

2. A hydrogen solenoid valve sealing structure according to claim 1, characterized in that: The sealing portion is embedded in the end portion of the valve core.

3. The hydrogen solenoid valve sealing structure according to claim 1, characterized in that: The valve core is provided with an embedding groove matched with the sealing portion.

4. A hydrogen solenoid valve sealing structure according to claim 3, characterized in that: The sealing portion is an O-ring.

5. The hydrogen solenoid valve sealing structure according to claim 1, characterized in that: The sealing element is a heat-treated sealing element.

6. A solenoid valve, characterized in that: It comprises a front bell, a magnetic isolation sleeve, a tail bell, an armature and a hydrogen solenoid valve sealing structure according to any one of claims 1 to 5, the valve core is connected to the tail bell, and the sealing component is connected to the armature.

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