CN220118760U

CN220118760U - Valve body of electromagnetic valve and electromagnetic valve

Info

Publication number: CN220118760U
Application number: CN202321511799.1U
Authority: CN
Inventors: 张永涛; 何泽淼; 何永水
Original assignee: Zhejiang Hengsen Industry Group Co ltd
Current assignee: Zhejiang Hengsen Industry Group Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-12-01
Anticipated expiration: 2033-06-13

Abstract

The utility model relates to a valve body of an electromagnetic valve and the electromagnetic valve. The valve body includes: a fluid inlet; a fluid outlet; a valve chamber comprising a first portion, a second portion, and a valve port disposed between the first portion and the second portion, the fluid inlet being fluidly connected to the fluid outlet via the valve port; a second opening in communication with a second portion of the valve chamber such that the valve port is accessible from outside the valve body; a valve cover is fixedly mounted to the valve body to close the second opening.

Description

Valve body of electromagnetic valve and electromagnetic valve

Technical Field

The utility model relates to a valve body of an electromagnetic valve and the electromagnetic valve.

Background

As is well known, solenoid valves are commonly used in fluoride liquid lines, suction lines, and hot vapor lines, and can be widely used in refrigeration, freezing, and air conditioning apparatuses.

The valve body of the solenoid valve is generally manufactured by forging forming or paraffin casting forming, however, both forging forming and paraffin casting forming involve relatively complicated processes, and loose holes are easily formed in the valve body of the solenoid valve manufactured, resulting in the valve body of the solenoid valve possibly having problems in use.

Disclosure of Invention

In order to overcome the above problems, the present utility model provides a valve body of a solenoid valve, the valve body comprising: a fluid inlet; a fluid outlet; a valve chamber comprising a first portion, a second portion, and a valve port disposed between the first portion and the second portion, the fluid inlet being fluidly connected to the fluid outlet via the valve port; a second opening in communication with a second portion of the valve chamber such that the valve port is accessible from outside the valve body; a valve cover is fixedly mounted to the valve body to close the second opening.

Advantageously, the fluid inlet has a first section and a second section, the first section being closer to the interior of the valve body than the second section, the first section being smaller in size than the second section such that a first step is formed between the first section and the second section, the central axis of the second section being collinear with the lateral axis of the valve body, the central axis of the first section being located above the central axis of the second section relative to the longitudinal axis of the valve body.

Advantageously, a blocking portion is also included, which is arranged between the first part of the valve chamber and the fluid outlet, such that the first part of the valve chamber is not in direct communication with the fluid outlet.

Advantageously, the valve cover is welded to the second opening.

Advantageously, the central axis of the fluid outlet is collinear with the lateral axis of the valve body.

Advantageously, the second opening has a first section and a second section, the first section having a smaller size than the second section such that a second step is formed between the first section and the second section.

Advantageously, the valve cover is fixedly mounted to said second step.

Advantageously, the valve body further comprises a first opening towards the upstream side of the valve port, such that the valve port is accessible from the outside of the valve body.

The utility model also provides an electromagnetic valve, comprising: a valve body as described above; a piston assembly movably disposed within a first portion of the valve cavity of the valve body, movable between a valve open position and a valve closed position; the driving assembly comprises a fixed iron core, a movable iron core and a valve core, and the movable iron core and the valve core are fixedly arranged together; the coil is sleeved outside the driving assembly, and when the coil is electrified, the movable iron core moves along the axial direction, so that the valve core is driven to move along the axial direction from the valve closing position to the valve opening position, and the axial direction is consistent with the longitudinal axis of the valve body.

Advantageously, the drive assembly includes a return spring disposed between the fixed and movable cores, the return spring configured to bias the valve spool toward a closed position of the valve spool.

Advantageously, the coil comprises: a body; an outer cover secured to the body, the wire passing through the outer cover into the outer cover and electrically connected to the pin passing through the body into the outer cover.

Advantageously, the coil further comprises: an interface for receiving the drive assembly such that a portion of the drive assembly is inserted into the coil; the clamp spring is sleeved outside the interface by the body of the abutting coil; and the cover plate is fixed to the body of the coil and seals the clamp spring, so that the clamp spring is clamped between the cover plates of the body of the coil.

Drawings

The above and other features and advantages of exemplary embodiments of the present utility model will become more apparent from the following detailed description in conjunction with the accompanying drawings, which are provided for illustrative purposes only and do not limit the scope of the present utility model in any way, wherein:

fig. 1 shows a cross-section of a valve body according to the utility model, showing two connection pipes mounted to the valve body.

Fig. 2 shows a cross-sectional view of the solenoid valve according to the utility model, showing a closed valve state.

Fig. 3 shows a cross-sectional view of the solenoid valve according to the utility model, showing an open valve state.

Fig. 4 shows a cross-sectional view of the piston assembly of the solenoid valve according to the utility model.

Fig. 5 shows a cross-sectional view of the drive assembly of the solenoid valve according to the utility model.

Fig. 6 shows a cross-sectional view of a coil of a solenoid valve according to the present utility model.

Fig. 7 shows a perspective view of the coil of the solenoid valve according to the present utility model.

Fig. 8 shows another perspective view of the coil of the solenoid valve according to the utility model.

Fig. 9 shows a partial cross-sectional view of a solenoid valve according to the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the specific embodiments of the present disclosure. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Possible implementations within the scope of the present disclosure may have fewer components, have other components not shown in the drawings, different components, differently arranged components, differently connected components, etc., than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Where the number of components is not specified, the number of components may be one or more; likewise, the terms "a," "an," "the," and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "mounted," "configured," "connected," or "connected" and the like are not limited to physical or mechanical mounting, configuration, connection, but may include electrical mounting, configuration, connection, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships when the apparatus is in use or positional relationships shown in the drawings, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.

Fig. 1 shows a cross-sectional view of a valve body according to the present utility model, showing two fittings mounted to the valve body, as will be appreciated by those skilled in the art, for a fluid inlet and a fluid outlet, respectively, as described below.

The valve body 1 comprises a fluid inlet 11 for connection to the first adapter tube 2 for inflow of fluid, as shown in fig. 2. The valve body 1 further comprises a fluid outlet 12, as shown in fig. 1, which fluid outlet 12 is adapted to be connected to the second nozzle 3 for outflow of fluid. The fluid outlet 12 and the fluid inlet 11 are arranged along the transverse axis T of the valve body, preferably such that the first adapter tube 2 and the second adapter tube 3 are parallel and in line with each other. The valve chamber 13 comprises a first portion 131, a second portion 133 and a valve port 132 arranged between the first portion and the second portion, the first portion and the second portion being arranged along a longitudinal axis L of the valve body, said fluid inlet being in fluid connection with said fluid outlet via said valve port. The second opening 14 communicates with a second portion 133 of the valve chamber such that the valve port is accessible from outside the valve body. The first portion 131 of the valve chamber 13 is for receiving a piston assembly, described below, and has a first opening 134 that opens to the outside for the piston assembly to pass through, a valve port 132 is located inside the valve body, the valve port 132 cooperates with the piston assembly such that when the piston assembly blocks the valve port 132, the solenoid valve is in a closed state, and when the piston assembly does not block the valve port 132, the solenoid valve is in an open state. The valve chamber 13 is in fluid communication with the fluid inlet 11. The valve body 1 further comprises a second opening 14, arranged opposite the first opening 134 along the longitudinal axis of the valve body, and opening to the outside, bringing the valve port into fluid communication with the fluid outlet. A valve cover 15 is fixedly mounted to the valve body to close the second opening 14, preferably the valve cover 15 is welded to the valve body.

The fluid inlet 11 has a first section 111 and a second section 112, the first section 111 being closer to the valve body interior 112 than the second section, the first section 111 being smaller in size than the second section 112 such that a first step 113 is formed between the first section 111 and the second section 112. The central axis L2 of the second section 112 is collinear with the lateral axis of the valve body, and the first and second sections are non-concentric such that the central axis L1 of the first section is above the central axis of the second section along the longitudinal axis L of the valve body. The first adapter tube 2 is connected to the second section 112.

The central axis of the fluid outlet 12 is also collinear with the lateral axis of the valve body such that the central axis of the second section, the central axis of the fluid outlet 12, and the lateral axis of the valve body are collinear.

The blocking portion 16 is arranged between the first portion 131 of the valve chamber 13 and the fluid outlet 12 such that the first portion 131 of the valve chamber 13 is not in direct communication with the fluid outlet 12.

Similarly, the second opening 14 has a first section and a second section, the first section having a smaller size than the second section, a second step between the first section and the second section, the first section and the second section being concentrically disposed. The valve cover 15 is fixedly mounted to the second step.

The electromagnetic valve of the utility model comprises the valve body, the piston assembly 4, the driving assembly 5 and the coil 5. The construction of the piston assembly 4 and the drive assembly 5 is conventional and well known to those skilled in the art and, therefore, will not be described in detail herein but will be described only briefly.

As shown in fig. 4, the piston assembly 4 includes a main body 41 in which a guide sleeve 42 is located for receiving the spool of the drive assembly and for mounting the spool and guide sleeve together so that when the spool moves, the piston assembly is moved together. The gasket 44 is provided outside the body, and in the closed state, the gasket 44 is sealed against the side wall of the valve port, and the gland 45 is provided outside the gasket 44, pressing the gasket 44 against the body. A pilot seal 43 is provided under the guide bush 42 as shown in fig. 4. It will be appreciated by those skilled in the art that the piston assembly is not an emphasis of the present utility model, that its structure is merely exemplary, and that any suitable structure of piston assembly is contemplated.

As shown in fig. 5, the drive assembly 5 includes a sleeve 51, a portion of a fixed iron core 52 and a movable iron core 53 provided in the sleeve 51, and a spool 54 mounted to the movable iron core so as to be movable together with the movable iron core. The spool 54 may be mounted to the plunger in a suitable manner so long as the spool and plunger are capable of moving together. The sleeve 51 is adapted to be inserted into the coil and when the coil is energized, the plunger moves toward the stator core, thereby driving the valve spool and thus the piston assembly from the closed position (shown in fig. 2) toward the open position (shown in fig. 3). A return spring 55 is disposed between the fixed core 52 and the movable core 53 and is configured to bias the spool toward the closed position of the spool 54. That is, in the closed valve position, the return spring provides a biasing force such that the valve spool 54, in turn, causes the piston assembly to block the valve port, and when the coil is energized, the plunger moves toward the fixed plunger against the biasing force of the return spring such that the valve spool moves from the closed valve position to the open valve position, and when the coil is de-energized, the valve spool returns from the open valve position to the closed valve position under the influence of the return spring. A cap 56 is mounted to the sleeve for receiving the body of the piston assembly. A sealing ring 57 is provided on the cover 56 to seal the connection of the cover and the coil when the drive assembly is mounted to the coil. The magnet separating ring 58 is disposed in the stator core. It will be appreciated by those skilled in the art that this drive assembly is not an emphasis of the present utility model, that its structure is merely exemplary, and that any suitable structure of drive assembly is contemplated.

As shown in fig. 6 to 9, the coil 6 comprises a body 61 and an outer cover 62 fixed to the body, preferably welded to the body, for example ultrasonic welded. The wire 621 passes through the cover and is electrically connected to the pin passing through the body into the cover.

The coil 6 further comprises an interface 63 for receiving a drive assembly such that a portion of the drive assembly is inserted into the coil. The body of the abutment coil is sleeved outside the interface, the cover plate 65, the body fixed to the coil (for example by hot melt) and the snap spring is closed such that it is clamped between the cover plates 65 of the body of the coil. Via the snap spring 64, the actuating assembly and the coil can be firmly mounted together when they are mounted together.

Most of the structure of the coil, except for the arrangement and location of the snap springs, is well known to those skilled in the art, and therefore, the present utility model will not be repeated for other structures of the coil.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A valve body for a solenoid valve, the valve body comprising:

a fluid inlet;

a fluid outlet;

a valve chamber comprising a first portion, a second portion, and a valve port disposed between the first portion and the second portion, the fluid inlet being fluidly connected to the fluid outlet via the valve port;

a second opening in communication with a second portion of the valve chamber such that the valve port is accessible from outside the valve body;

a valve cover is fixedly mounted to the valve body to close the second opening.

2. The valve body of claim 1, wherein the fluid inlet has a first section and a second section, the first section being closer to the interior of the valve body than the second section, the first section being smaller in size than the second section such that a first step is formed between the first section and the second section, a central axis of the second section being collinear with a lateral axis of the valve body, the central axis of the first section being above a central axis of the second section relative to a longitudinal axis of the valve body.

3. The valve body of claim 1, further comprising a blocking portion disposed between the first portion of the valve cavity and the fluid outlet such that the first portion of the valve cavity is not in direct communication with the fluid outlet.

4. The valve body of claim 1, wherein the bonnet is welded to the second opening.

5. The valve body of claim 1, wherein the central axis of the fluid outlet is collinear with the lateral axis of the valve body.

6. The valve body of claim 1, wherein the second opening has a first section and a second section, the first section having a size that is smaller than a size of the second section such that a second step is formed between the first section and the second section.

7. The valve body of claim 6, wherein the bonnet is fixedly mounted to the second step.

8. The valve body of any one of claims 1-7, further comprising a first opening toward an upstream side of the valve port such that the valve port is accessible from an exterior of the valve body.

9. A solenoid valve, comprising:

a valve body as claimed in any one of claims 1 to 8;

a piston assembly movably disposed within a first portion of the valve cavity of the valve body, movable between a valve open position and a valve closed position;

the driving assembly comprises a fixed iron core, a movable iron core and a valve core, and the movable iron core and the valve core are fixedly arranged together;

the coil is sleeved outside the driving assembly, and when the coil is electrified, the movable iron core moves along the axial direction, so that the valve core is driven to move along the axial direction from the valve closing position to the valve opening position, and the axial direction is consistent with the longitudinal axis of the valve body.

10. The solenoid valve of claim 9, wherein the drive assembly includes a return spring disposed between the fixed core and the movable core, the return spring configured to bias the valve spool toward a closed position of the valve spool.

11. The solenoid valve of claim 9 wherein said coil comprises:

a body;

an outer cover secured to the body, the wire passing through the outer cover into the outer cover and electrically connected to the pin passing through the body into the outer cover.

12. The solenoid valve of claim 9 wherein said coil further comprises:

an interface for receiving the drive assembly such that a portion of the drive assembly is inserted into the coil;

the clamp spring is sleeved outside the interface by the body of the abutting coil;

and the cover plate is fixed to the body of the coil and seals the clamp spring, so that the clamp spring is clamped between the cover plates of the body of the coil.