CN219827889U

CN219827889U - Electromagnetic bypass valve

Info

Publication number: CN219827889U
Application number: CN202320745158.6U
Authority: CN
Inventors: 汪国军; 唐艳荣; 虞文群; 徐志俊
Original assignee: Vitesco Automotive Wuhu Co Ltd
Current assignee: Vitesco Automotive Wuhu Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-10-13
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses an electromagnetic bypass valve, comprising: a valve body, the interior of which is provided with a cavity; the electromagnetic part is arranged in the cavity and is connected with a power supply; the stator is arranged in the cavity, and a groove is formed in the bottom of the stator; the driving part is at least partially arranged in the valve body, and the upper end of the driving part can extend into the groove; the magnetism isolating gasket is arranged on the groove or the driving part; when the electromagnetic part is electrified, the driving part and the stator are magnetized, so that the driving part moves towards the stator until the upper end of the driving part stretches into the groove, the driving part is contacted with the stator through the magnetism isolating gasket, and the electromagnetic bypass valve is in an open state; when the electromagnetic part is powered off, the stator is separated from the driving part, so that the electromagnetic bypass valve is in a closed state. According to the utility model, after the bypass valve is powered off, the bypass valve can be quickly closed, and the bypass valve is not influenced by slow demagnetization or residual magnetism of the magnetic conductive material.

Description

Electromagnetic bypass valve

Technical Field

The utility model relates to the field of pressure relief valves, in particular to an electromagnetic bypass valve.

Background

The existing electronic compressed gas bypass valve is internally provided with magnetically conductive soft magnetic materials, after the valve is electrified, an internal stator and an armature of the valve are magnetized to open the valve, and after the valve is powered off, the valve can be quickly demagnetized to close.

The valve is not closed after power failure, which may result in slow demagnetization of the magnetic conductive material in the valve or even considerable residual magnetism due to corrosion of external medium and other conditions for changing the characteristics of the magnetic conductive material.

Disclosure of Invention

The utility model aims to solve the problem that the valve cannot be closed due to slow demagnetization of a stator and even quite large residual magnetism of the existing bypass valve after power failure. The utility model provides an electromagnetic bypass valve, which can realize that the bypass valve can be quickly closed after the bypass valve is powered off and is not influenced by slow demagnetization or residual magnetism of a magnetic conductive material.

The applicant has found that the reason for the inability of the valve to close after de-energizing the valve is: the valve is conductive and can lead the stator and the armature to be magnetized, the stator and the armature are directly adsorbed together, and if demagnetization is slow or residual magnetism occurs, the stator and the armature cannot be separated, so that the valve cannot be closed.

To solve the above technical problem, an embodiment of the present utility model provides an electromagnetic bypass valve, including:

a valve body, the interior of which is provided with a cavity;

the electromagnetic part is arranged in the cavity and is connected with a power supply;

the stator is arranged in the cavity, and a groove is formed in the bottom of the stator;

the driving part is at least partially arranged in the valve body, and the upper end of the driving part can extend into the groove;

the magnetism isolating gasket is arranged on the groove or the driving part;

when the electromagnetic part is electrified, the driving part and the stator are magnetized, so that the driving part moves towards the stator until the upper end of the driving part stretches into the groove, the driving part is contacted with the stator through the magnetism isolating gasket, and the electromagnetic bypass valve is in an open state; when the electromagnetic part is powered off, the stator is separated from the driving part, so that the electromagnetic bypass valve is in a closed state.

Optionally, the driving part includes:

the driving shaft is partially arranged in the cavity, the lower end of the driving shaft extends out of the valve body, and the driving shaft is correspondingly arranged with the groove, so that the upper end of the driving shaft can extend into the groove;

the armature is provided with a through hole, the driving shaft penetrates through the through hole and is fixedly connected with the armature, and the electromagnetic part can magnetize the armature after being electrified so that the armature drives the driving shaft to move along the direction of the stator.

Optionally, the stator is further provided with a clamping groove communicated with the groove, the clamping groove is located on one side of the groove facing the armature, and when the armature is magnetized, the upper portion of the armature can move into the clamping groove.

Optionally, the magnetism isolating pad is arranged at the upper end of the armature and/or the upper end of the driving shaft and/or in the groove and/or the clamping groove.

Optionally, the valve further comprises a valve head, and one end of the driving shaft extending out of the valve body is connected with the valve head.

Optionally, the valve further comprises an elastic piece, wherein the elastic piece is arranged between the valve body and the valve head; when the electromagnetic part is powered off, the elastic piece pushes the valve head to separate the stator from the driving part.

Optionally, the device further comprises a first sliding bearing, wherein the first sliding bearing is arranged in the groove and is in sliding connection with the driving shaft.

Optionally, the method further comprises:

the bush is at least partially sleeved on the outer side of the armature, and is magnetically conducted with the electromagnetic part; a gap is formed between the armature and the bushing;

the second sliding bearing is arranged in the bushing and is positioned on one side of the armature away from the stator, and the driving shaft is in sliding connection with the second sliding shaft.

Optionally, the material of the magnetism isolating gasket is one of a non-magnetic metal piece and a non-metal non-magnetic material.

Optionally, a protective layer is injection molded on the outer side wall of the valve body.

The beneficial effects of the utility model are as follows: when the bypass valve is powered off, the bypass valve can be quickly closed, and is not influenced by slow demagnetization or residual magnetism of the magnetic conductive material.

Drawings

FIG. 1 shows a schematic diagram of a solenoid bypass valve according to an embodiment of the present utility model;

fig. 2 shows a second schematic structural diagram of the electromagnetic bypass valve according to the embodiment of the utility model.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model. Specifically, the "upper end" and "lower end" in the embodiments of the present utility model refer to the ends near the stator and far from the stator, respectively.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, the present utility model provides an electromagnetic bypass valve comprising: a valve body 1, the interior of which is provided with a cavity 11; an electromagnetic part 5 arranged in the cavity 11, the electromagnetic part 5 being connected with a power supply; the stator 4 is arranged in the cavity 11, and a groove 41 is formed in the bottom of the stator 4; a driving part 2 at least partially arranged in the valve body 1, wherein the upper end of the driving part 2 can extend into the groove 41; the magnetism isolating pad 3 is arranged in the groove 41 or the driving part 2;

when the electromagnetic portion 5 is energized, the driving portion 2 and the stator 4 are magnetized, so that the stator 4 and the driving portion 2 carry opposite-electrode magnetism, so that the driving portion 2 and the stator 4 attract each other to enable the driving portion 2 to move toward the stator 4 (shown in Y direction in fig. 1), until the upper end of the driving portion 2 stretches into the groove 41, the magnetism isolating pad 3 is disposed on the groove 41 or the driving portion 2, a certain gap can be formed between the driving portion 2 and the stator 4, so that the driving portion 2 and the stator 4 cannot be directly contacted, that is, the driving portion 2 and the stator 4 can carry magnetism to attract each other after being energized, so that the driving portion 2 moves toward the stator 4, when the upper end of the driving portion 2 stretches into the groove 41, the magnetism isolating pad 3 can separate the driving portion 2 from the stator 4 by a certain gap, and direct contact of the driving portion 2 with the stator 4 is avoided, when the electromagnetic portion 5 is deenergized, or when slow or residual magnetism appears, the driving portion 2 and the driving portion 4 are separated from the stator 4 by the magnetism, and the bypass valve can be easily separated, so that the bypass valve is in a closed state.

In one embodiment, the driving section 2 includes: a driving shaft 22 partially disposed in the cavity 11 and having a lower end protruding from the valve body 1; the armature 21 is provided with a through hole, the driving shaft 22 passes through the through hole and is fixedly connected with the armature 21, and the electromagnetic part 5 can magnetize the armature 21 after being electrified so that the armature 21 drives the driving shaft 22 to move towards the stator 4.

In this embodiment, the armature 21 is in interference fit with the driving shaft 22, and the electromagnetic portion 5 is energized to make the armature 21 magnetically drive the driving portion 2 to move together in the direction of the stator 4. The upper part of the driving shaft 22 passes through and extends out of the through hole of the armature 21, the groove 41 is formed corresponding to the structures of the armature 21 and the driving shaft 22, when the electromagnetic bypass valve is in an open state, the armature 21 and the upper part of the driving shaft 22 are spaced by the same gap with the groove 41, and meanwhile, a gap is formed between the side wall of the groove 41 and the armature 21, so that the armature 21 can be adsorbed on the side wall of the groove 41 when extending into the groove 41.

Referring to fig. 1 and 2, in one embodiment, the stator 4 is further provided with a clamping groove 42 in communication with the groove 41, the clamping groove 42 being located on a side of the groove 41 facing the armature 21, and an upper portion of the armature 21 being movable into the clamping groove 42 when the armature 21 is magnetized.

The magnetism isolating spacer 3 is provided in the upper end of the armature 21 and/or the upper end of the drive shaft 22 and/or the recess 41 and/or the catch groove 42. The magnetism isolating sheet 3 may be provided on the upper portion of the armature 21 or on the upper portion of the drive shaft 22, or may be provided in the groove 41 or the catch groove 42, and when the upper portion of the drive shaft 22 extends into the groove 41 or the upper portion of the armature 21 extends into the catch groove 42, the upper portion of the drive shaft 22 or the upper portion of the armature 21 abuts against the magnetism isolating sheet 3. Fig. 1 shows a schematic view in which the magnetism isolating spacer 3 is provided at the upper portion of the armature 21; a schematic view of the placement of the magnetically insulating spacer 3 in the recess 41 is shown in fig. 2.

In one embodiment, the electromagnetic valve further comprises a valve head 6, one end of the driving shaft 22 extending out of the valve body 1 is connected with the valve head 6, the valve head 6 is used for controlling the on-off of a pipeline, when the electromagnetic part 5 is electrified, the driving shaft 22 and the stator 4 are magnetized to attract each other, the driving part 2 moves towards the stator 4, and the electromagnetic bypass valve is opened to enable the pipeline to be conducted. When the electromagnet portion 5 is de-energized, the armature 21 loses magnetism with the stator 4, and the valve head 6 returns to a position where the pipe is closed, i.e., an initial position.

In one embodiment, the valve further comprises an elastic element, and the elastic element is arranged between the valve body 1 and the valve head 6; when the electromagnetic bypass valve is in the activated closed state, the elastic member urges the valve head 6 to separate the stator 4 from the driving portion 2. The elastic piece is used for pushing the armature 21 to separate from the stator 4 when the electromagnetic part 5 is powered off, the elastic piece is used for assisting the valve head 6 to quickly return to the initial position, the elastic piece can be a spring 7, the spring 7 is sleeved on the part of the driving shaft 22 extending out of the cavity 11, two ends of the elastic piece are respectively abutted against the bottom of the valve body 1 and the valve head 6, when the electromagnetic part 5 is powered on, the valve head 6 is driven by the driving shaft 22 to move towards the stator 4 and compress the spring 7, so that the spring 7 is in a compressed state, when the electromagnetic part 5 is powered off, the armature 21 and the stator 4 lose magnetism, and the spring 7 needs to restore to the initial state, so that the valve head 6 is driven to return to the initial position.

In one embodiment, the device further comprises a first sliding bearing 9, wherein the first sliding bearing 9 is arranged in the groove 41 and is in sliding connection with the driving shaft 22. A bushing 8 at least partially sleeved outside the armature 21, the bushing 8 being magnetically connected to the electromagnetic portion 5; a gap is formed between the armature 21 and the bushing 8; a second sliding bearing 10 is provided in the bushing 8 on the side remote from the stator 4, and a drive shaft 22 is slidably connected to the second sliding shaft.

In this embodiment, the driving shaft 22 is respectively sleeved on the first sliding bearing 9 and the second sliding bearing 10, and plays a role of guiding while supporting the driving shaft 22 to move toward the stator 4, so as to avoid the deviation of the driving shaft 22, and further guide the armature 21 connected with the driving shaft 22, and avoid the contact between the armature 21 and the side wall of the stator 4, thereby influencing the sliding.

The bush 8 is magnetically permeable to magnetically energize the armature 21, and the second slide bearing 10 is provided at the bottom of the bush 8, so that when the armature 21 loses magnetism and the valve head 6 returns to the initial position, the bottom of the armature 21 abuts against the second slide bearing 10.

In one embodiment, the magnetic isolation pad 3 is made of one of a non-magnetic metal piece and a non-metal non-magnetic material. Since the magnetic shielding gasket 3 does not have a magnetic conductive function while separating the driving portion 2 from the stator 4, the magnetic shielding gasket 3 may be made of a non-metallic non-magnetic conductive material such as rubber or plastic, or a non-magnetic conductive metal material such as copper or aluminum.

In one embodiment, the electromagnetic portion 5 is a coil (e.g., a copper coil) disposed within the cavity 11. The middle part of the coil is provided with a pore canal for the driving part to pass through so as to make the armature 21 have better magnetism.

In one embodiment, the outer side wall of the valve body 1 is injection molded with a protective layer. The protective layer is usually of plastic material for protecting the valve body 1 from rust and the influence of external environmental media.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims

1. An electromagnetic bypass valve, comprising:

a valve body, the interior of which is provided with a cavity;

an electromagnetic part arranged in the cavity, wherein the electromagnetic part is connected with a power supply;

the magnetism isolating gasket is arranged on the groove or the driving part;

when the electromagnetic part is electrified, the driving part and the stator are magnetized, so that the driving part moves towards the stator until the upper end of the driving part stretches into the groove, the driving part is in contact with the stator through the magnetism isolating gasket, and the electromagnetic bypass valve is in an open state; when the electromagnetic part is powered off, the stator is separated from the driving part, so that the electromagnetic bypass valve is in a closed state.

2. The electromagnetic bypass valve of claim 1, wherein the drive portion includes:

the driving shaft is partially arranged in the cavity, the lower end of the driving shaft extends out of the valve body, and the driving shaft is arranged corresponding to the groove, so that the upper end of the driving shaft can extend into the groove;

3. The electromagnetic bypass valve as recited in claim 2, wherein the stator is further provided with a catch in communication with the recess, the catch being located on a side of the recess facing the armature, the upper portion of the armature being movable into the catch when the armature is magnetized.

4. The electromagnetic bypass valve of claim 3, wherein the magnetic barrier gasket is disposed at an upper end of the armature and/or an upper end of the drive shaft and/or within the recess and/or within the detent.

5. The electromagnetic bypass valve of claim 2, further comprising a valve head, wherein an end of the drive shaft extending out of the valve body is connected to the valve head.

6. The electromagnetic bypass valve of claim 5, further comprising an elastic member disposed between the valve body and the valve head; when the electromagnetic portion is de-energized, the elastic member pushes the valve head to separate the stator from the driving portion.

7. The electromagnetic bypass valve of claim 2, further comprising a first slide bearing disposed within the recess and slidably coupled to the drive shaft.

8. The electromagnetic bypass valve of claim 2, further comprising:

9. The electromagnetic bypass valve of claim 1, wherein the magnetically isolated gasket is one of a non-magnetically conductive metallic member and a non-metallic non-magnetically conductive material.

10. The electromagnetic bypass valve of claim 1, wherein the valve body outer sidewall is injection molded with a protective layer.