CN219432444U - Solenoid valve, refrigeration plant and car - Google Patents
Solenoid valve, refrigeration plant and car Download PDFInfo
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- CN219432444U CN219432444U CN202320520208.0U CN202320520208U CN219432444U CN 219432444 U CN219432444 U CN 219432444U CN 202320520208 U CN202320520208 U CN 202320520208U CN 219432444 U CN219432444 U CN 219432444U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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Abstract
The technical scheme of the utility model discloses an electromagnetic valve, refrigeration equipment and an automobile, wherein the electromagnetic valve comprises a valve body, a piston assembly and an elastic piece, and the valve body is provided with a valve cavity and a valve port communicated with the valve cavity; the piston assembly is arranged in the valve cavity and used for opening and closing the valve port, and comprises a first connecting section close to the valve port and a second connecting section far away from the valve port, and the outer diameter of the second connecting section is larger than that of the first connecting section; the elastic piece is provided with a first end and a second end which are opposite, the first end is sleeved on the periphery of the first connecting section, the second end is abutted to the edge of the valve port, and the periphery of the first end does not protrude out of the periphery of the second connecting section. According to the technical scheme, the first end of the elastic piece is sleeved on the periphery of the first connecting section, the periphery of the first end does not protrude out of the periphery of the second connecting section, interference between the elastic piece and the inner wall of the valve cavity is avoided, abrasion and blocking of the elastic piece are reduced, and accordingly reliability of electromagnetic valve action is improved.
Description
Technical Field
The utility model relates to the technical field of fluid control components, in particular to an electromagnetic valve, refrigeration equipment and an automobile.
Background
With the increasing use of automobiles, it has become a basic configuration of automobiles to have a temperature adjusting function to achieve a more comfortable driving environment. Electromagnetic valves are often arranged in pipelines of the refrigeration system so as to control on-off of media in the pipeline system.
However, in the related art, due to the limited volume of the valve cavity, the cooperation between the spring and the piston is unstable, when the electromagnetic valve is opened, the spring is displaced along with the opening of the piston, and due to the fact that the spring is not reasonably designed and is easy to interfere with the valve cavity to be worn, the spring is worn or deformed to cause the problem that the valve cannot be normally opened/closed, so that the reliability of the action of the electromagnetic valve is reduced.
Disclosure of Invention
The utility model mainly aims to provide a solenoid valve, which aims to improve the reliability of the solenoid valve.
The technical scheme of the utility model provides an electromagnetic valve, which comprises the following components:
the valve body is provided with a valve cavity and a valve port communicated with the valve cavity;
the piston assembly is arranged in the valve cavity and used for opening and closing the valve port, and comprises a first connecting section close to the valve port and a second connecting section far away from the valve port, and the outer diameter of the second connecting section is larger than that of the first connecting section;
the elastic piece is provided with a first end and a second end which are opposite, the first end is sleeved on the periphery of the first connecting section, the second end is abutted to the edge of the valve port, and the periphery of the first end does not protrude out of the periphery of the second connecting section.
In one embodiment, the first connecting section has an outer diameter D 1 The outer diameter of the second connecting section is D 2 The wire diameter of the elastic piece is D, and the D is 1 、D 2 And d satisfies: d (D) 1 +2.5d＜D 2 。
In an embodiment, the valve cavity comprises a containing cavity and a guiding cavity, the second connecting section is in sliding fit with the inner wall of the containing cavity, the guiding cavity is arranged close to the valve port, and the guiding cavity is arranged in a flaring mode in the direction close to the valve port.
In an embodiment, the guide cavity is in a straight line shape on a section cut by a plane along the axial direction of the valve body.
In one embodiment, a rounded transition is provided between the inner wall of the guide cavity and the inner wall of the receiving cavity; and/or the inner wall of the guide cavity and the end face of the free end are in rounded transition.
In an embodiment, the outer surface of the second connection section is in a clearance fit with the inner wall of the receiving chamber.
In one embodiment, the outer diameter of the elastic member gradually increases in a direction from the first end to the second end.
In one embodiment, when the valve port is open, a gap is provided between the elastic member and the inner wall of the accommodating chamber.
In one embodiment, the guide cavity is on a section cut by a plane along the axial direction of the valve body, and an included angle formed by two generatrix of the guide cavity is theta; when the valve port is opened, an included angle formed by two generatrix of the elastic piece on a section sectioned by a plane of the elastic piece along the axial direction of the elastic piece is alpha; when the valve port is closed, on the section of the elastic piece cut along the plane of the axial direction of the elastic piece, an included angle formed by two generatrix of the elastic piece is beta, alpha is smaller than theta, and beta is smaller than theta.
In an embodiment, the second connecting section has an abutment surface protruding from the first connecting section and facing the valve port, the first end abuts against the abutment surface, and the elastic member is in clearance fit with a side wall of the first connecting section.
The utility model also provides a refrigeration device comprising a solenoid valve comprising:
the valve body is provided with a valve cavity and a valve port communicated with the valve cavity;
the piston assembly is arranged in the valve cavity and used for opening and closing the valve port, and comprises a first connecting section close to the valve port and a second connecting section far away from the valve port, and the outer diameter of the second connecting section is larger than that of the first connecting section;
the elastic piece is provided with a first end and a second end which are opposite, the first end is sleeved on the periphery of the first connecting section, the second end is abutted to the edge of the valve port, and the periphery of the first end does not protrude out of the periphery of the second connecting section.
The utility model also provides an automobile, comprising refrigeration equipment, wherein the refrigeration equipment comprises an electromagnetic valve, and the electromagnetic valve comprises:
the valve body is provided with a valve cavity and a valve port communicated with the valve cavity;
the piston assembly is arranged in the valve cavity and used for opening and closing the valve port, and comprises a first connecting section close to the valve port and a second connecting section far away from the valve port, and the outer diameter of the second connecting section is larger than that of the first connecting section;
the elastic piece is provided with a first end and a second end which are opposite, the first end is sleeved on the periphery of the first connecting section, the second end is abutted to the edge of the valve port, and the periphery of the first end does not protrude out of the periphery of the second connecting section.
The electromagnetic valve provided by the technical scheme of the utility model comprises a valve body, a piston assembly and an elastic piece, wherein the piston assembly and the elastic piece are arranged in a valve cavity of the valve body, and the outer diameter of a second connecting section of the piston assembly is larger than that of a first connecting section. Through locating the periphery of first linkage segment with the first end cover of elastic component, the periphery of first end does not protrude in the periphery of second linkage segment, has avoided elastic component and valve pocket inner wall to take place to interfere, has reduced the problem of elastic component wearing and tearing and blocking to improve the reliability of solenoid valve action.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a solenoid valve;
FIG. 2 is a schematic structural view of a piston assembly;
FIG. 3 is a schematic view of the structure of the valve body;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic view of the structure of the elastic member with the valve port open;
FIG. 6 is a schematic view of the elastic member when the valve port is closed.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Electromagnetic valve | 110 | Valve cavity |
| 100 | Valve body | 120 | Valve port |
| 200 | Piston assembly | 111 | Accommodating chamber |
| 300 | Elastic piece | 112 | Guide cavity |
| 210 | First connecting section | 310 | First end |
| 220 | Second connecting section | 320 | Second end |
| 221 | Abutment surface |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a solenoid valve, refrigeration equipment comprising the solenoid valve and an automobile comprising the refrigeration equipment. The solenoid valve is applied to a refrigerating system, which may be a refrigerating system of an air conditioner, a refrigerator or other refrigerating and heating equipment, and can control a flow rate of a refrigerating medium in the refrigerating system.
Referring to fig. 1 and 2, the present utility model provides a solenoid valve 10, which includes a valve body 100, a piston assembly 200 and an elastic member 300, wherein the valve body 100 is provided with a valve cavity 110 and a valve port 120 communicated with the valve cavity 110; the piston assembly 200 is disposed in the valve chamber 110 for opening and closing the valve port 120, the piston assembly 200 includes a first connection section 210 adjacent to the valve port 120 and a second connection section 220 remote from the valve port 120, the second connection section 220 having an outer diameter greater than the first connection section 210; the elastic member 300 has a first end 310 and a second end 320 opposite to each other, the first end 310 is sleeved on the outer periphery of the first connecting section 210, the second end 320 abuts against the edge of the valve port 120, and the outer periphery of the first end 310 does not protrude from the outer periphery of the second connecting section 220.
Specifically, the valve body 100 has a valve cavity 110 and a valve port 120, the valve body 100 is provided with a medium inlet and a medium outlet, the medium inlet is communicated with the valve cavity 110, and the medium inlet is used for inflow of medium; a media outlet communicates with the valve port 120 for media outflow. The piston assembly 200 is provided in the valve chamber 110 and is movable in the axial direction of the valve body 100 to open and close the valve port 120. When the piston assembly 200 moves away from the valve port 120 in the axial direction of the valve body 100, the valve port 120 is opened, and medium flows into the valve cavity 110 from the medium inlet and flows out from the medium outlet through the valve port 120; when the piston assembly 200 moves toward the valve port 120 in the axial direction of the valve body 100, the valve port 120 is closed, thereby blocking medium from flowing out to the medium outlet through the valve port 120.
The valve body 100 includes a valve seat on which the valve port 120 is provided, and a valve cover provided on the valve seat and provided at an end opposite to the valve port 120, the valve seat and the valve cover together restricting the valve chamber 110. The valve seat and the valve cover can be integrally formed; the valve seat and the valve cover can be in threaded connection, for example, the outer wall of the valve cover is provided with external threads, the inner wall of the valve seat is provided with internal threads, and the valve cover is in threaded fit with the valve seat; the valve seat and the valve cover can be welded and fixedly connected in a welding mode. There is no limitation in this regard.
The portion of the piston assembly 200 disposed in the valve chamber 110 includes a first connection section 210 and a second connection section 220, the first connection section 210 is disposed between the second connection section 220 and the valve port 120 and is connected to the second connection section 220, and the outer diameter of the second connection section 220 is larger than the outer diameter of the first connection section 210.
The elastic member 300 is disposed in the valve cavity 110 and between the piston assembly 200 and an inner wall of the valve cavity 110. The elastic member 300 has a first end 310 and a second end 320 opposite to each other, wherein the first end 310 is far away from the valve port 120 and is sleeved on the periphery of the first connecting section 210; the second end 320 is proximate to the valve port 120 and abuts an edge of the valve port 120 to facilitate the opening or closing of the valve port 120 by the piston assembly 200. The first end 310 is sleeved on the outer periphery of the first connecting section 210, and the outer periphery of the first end 310 does not protrude from the outer periphery of the second connecting section 220. The outer periphery of the second connecting section 220 may protrude from the outer periphery of the first end 310 or may be flush with the outer periphery of the first end 310. In order to facilitate the movement of the piston assembly 200 in the valve cavity 110, a gap is formed between the piston assembly 200 and the inner wall of the valve cavity 110, that is, a gap is also formed between the elastic member 300 and the inner wall of the valve cavity 110, so that the problem that the valve cannot be normally opened and closed due to the interference between the elastic member 300 and the valve cavity 110 is avoided, and the reliability of the action of the electromagnetic valve 10 is further reduced.
In one embodiment, the first connection section 210 has an outer diameter D 1 The second connecting section 220 has an outer diameter D 2 The elastic member 300 has a wire diameter D, D 1 、D 2 And d satisfies: d (D) 1 +2.5d＜D 2 。
Referring to fig. 2, the first connecting section 210 is disposed between the second connecting section 220 and the valve port 120, and is connected to the second connecting section 220, and the outer diameter of the second connecting section 220 is larger than that of the first connecting section 210. The first and second connection sections 210 and 220 are substantially cylindrical, and the first connection section 210 has an outer diameter D 1 The second connecting section 220 has an outer diameter D 2 . The wire diameter of the elastic member 300 is the diameter of the wire from which the elastic member 300 is manufactured, and the wire diameter of the elastic member 300 is d. When D is 1 +2d＞D 2 In this case, it is explained that the outer circumference of the first end 310 of the elastic member 300 protrudes from the outer circumference of the second connecting section 220 of the piston assembly 200, and the elastic member 300 is easily interfered with the inner wall of the valve chamber 110 to be worn or deformed, so that the valve cannot be normally opened and closed. When D is 1 +2d＝D 2 When it is explained that the outer circumference of the first end 310 of the elastic member 300 is flush with the outer circumference of the second connecting section 220 of the piston assembly 200, the possibility of interference between the elastic member 300 and the inner wall of the valve chamber 110 is reduced. When D is 1 +2.5d＜D 2 In the above description, the outer circumference of the second connecting section 220 of the piston assembly 200 protrudes beyond the outer circumference of the first end 310 of the elastic member 300, and the elastic member 300 and the inner wall of the valve chamber 110 have a spacing of at least 0.25d, so that the elastic member 300 is prevented from being worn or deformed due to interference with the valve chamber 110, the wear and the clamping problems of the solenoid valve 10 are reduced,thereby improving the reliability of the operation of the solenoid valve 10.
In one embodiment, the valve chamber 110 includes a receiving chamber 111 and a guide chamber 112, the second connecting section 220 being slidably fitted to the receiving chamber 111, the guide chamber 112 being disposed adjacent the valve port 120, the guide chamber 112 being flared in a direction adjacent the valve port 120.
Referring to fig. 3 and 4, the valve chamber 110 includes a receiving chamber 111 and a guiding chamber 112, the second connecting section 220 is slidably fitted in the receiving chamber 111, and the second connecting section 220 slides in the receiving chamber 111 along the axial direction of the valve body 100. The guide chamber 112 is provided between the accommodation chamber 111 and the valve port 120, and communicates with the accommodation chamber 111 and the valve port 120. The guiding cavity 112 is arranged in a flaring manner in the direction from the accommodating cavity 111 to the valve port 120, plays a role in guiding in the process of assembling the electromagnetic valve 10, facilitates the second connecting section 220 to be installed in the accommodating cavity 111, reduces the assembling difficulty of the piston assembly 200, improves the process and improves the production efficiency. Meanwhile, in the process of opening and closing the valve, the elastic piece 300 can pass through the guide cavity 112 along with the movement of the piston assembly 200, the guide cavity 112 is in a flaring arrangement in the direction from the accommodating cavity 111 to the valve port 120, and the elastic piece 300 can be given a abdication effect, so that interference with the elastic piece 300 is avoided. The guide chamber 112 may have a linear shape or an arc shape in the axial direction of the valve body 100 on a cross section taken along a plane of the axial direction of the valve body 100, and the inner wall of the guide chamber 112 is not limited thereto.
In one embodiment, the guide chamber 112 is linear in the inner wall of the guide chamber 112 in a cross section taken along a plane in the axial direction of the valve body 100.
Referring to fig. 4, the guide chamber 112 is linear in a cross section taken along a plane of the axial direction of the valve body 100, and an inner wall of the guide chamber 112 is gradually increased in the direction from the accommodating chamber 111 to the guide chamber 112, and gradually increased from one end of the guide chamber 112 near the accommodating chamber 111 to the other end of the guide chamber 112 far from the accommodating chamber 111 in the direction from the accommodating chamber 111 to the guide chamber 112. The guide chamber 112 plays a role of guiding the assembly of the piston assembly 200 and avoiding interference of the elastic member 300 with the inner wall of the guide chamber 112.
In one embodiment, a rounded transition is provided between the inner wall of the guide chamber 112 and the inner wall of the receiving chamber 111; and/or a rounded transition between the inner wall of the guide cavity 112 and its free end face.
Referring to fig. 4, the rounded transition between the inner wall of the guiding cavity 112 and the inner wall of the accommodating cavity 111, and the rounded transition between the inner wall of the guiding cavity 112 and the free end face thereof, avoid the scratch at the connection between the piston assembly 200 and the inner wall of the guiding cavity 112 and the inner wall of the accommodating cavity 111 during the assembly of the electromagnetic valve 10, and damage the outer wall of the piston assembly 200. Moreover, the rounded transition between the inner wall of the guiding cavity 112 and the inner wall of the receiving cavity 111, and the rounded transition between the inner wall of the guiding cavity 112 and the free end face thereof, provide a further guiding function for the second connecting section 220 to be fitted into the receiving cavity 111. The rounded transition between the inner wall of the guide cavity 112 and the inner wall of the accommodating cavity 111, and the rounded transition between the inner wall of the guide cavity 112 and the free end face thereof, also avoid interference at the connection between the elastic piece 300 and the inner wall of the guide cavity 112 and the inner wall of the accommodating cavity 111, and reduce the abrasion and the clamping problem of the elastic piece 300. In an embodiment, the guide chamber 112 is linear in the axial direction of the valve body 100 in a cross section taken along a plane of the axial direction of the valve body 100, and an inner wall of the guide chamber 112 makes a rounded transition with an inner wall of the accommodation chamber 111. In another embodiment, the guide chamber 112 is linear in the axial direction of the valve body 100 in a cross section taken along a plane in the axial direction of the valve body 100, and the inner wall of the guide chamber 112 makes a rounded transition with the free end face thereof. In still another embodiment, the guide chamber 112 is linear in the axial direction of the valve body 100 in a cross section taken along a plane of the axial direction of the valve body 100, and the inner wall of the guide chamber 112 makes a rounded transition with the inner wall of the accommodation chamber 111, and the inner wall of the guide chamber 112 makes a rounded transition with the free end face thereof.
In one embodiment, the outer surface of the second connecting section 220 is in a clearance fit with the inner wall of the receiving chamber 111.
Referring to fig. 1, the second connecting section 220 is disposed in the accommodating cavity 111, and the second connecting section 220 is slidably matched with an inner wall of the accommodating cavity 111. The outer surface of the second connecting section 220 is in clearance fit with the inner wall of the accommodating cavity 111, a certain clearance is formed between the outer surface of the second connecting section 220 and the inner wall of the accommodating cavity 111, interference between the outer surface of the second connecting section 220 and the inner wall of the accommodating cavity 111 is avoided, the second connecting section 220 can freely move in the accommodating cavity 111, and the valve opening speed and the valve closing speed of the piston assembly 200 are increased. And friction between the outer surface of the second connecting section 220 and the inner wall of the receiving chamber 111 is reduced, abrasion of the outer surface of the second connecting section 220 is reduced, and the service life of the piston assembly 200 is prolonged. On the other hand, when the outer circumference of the first end 310 of the elastic member 300 is flush with the outer circumference of the second connecting section 220, the outer circumference of the first end 310 of the elastic member 300 is also in clearance fit with the inner wall of the accommodating chamber 111, so that the elastic member 300 is prevented from being worn or deformed due to interference with the valve chamber 110, and the reliability of the action of the electromagnetic valve 10 is improved.
In one embodiment, the outer diameter of the elastic member 300 gradually increases in a direction from the first end 310 to the second end 320.
Referring to fig. 1, 5 and 6, the first end 310 of the elastic member 300 is sleeved on the outer periphery of the first connecting section 210, and the second end 320 abuts against the edge of the valve port 120, so as to fix the position of the elastic member 300 in the valve cavity 110, and then the plurality of coils are formed from the first end 310 to the second end 320 in parallel to each other, so as to increase the matching length between the elastic member 300 and the piston assembly 200, thereby improving the connection stability between the elastic member 300 and the piston assembly 200 and the valve cavity 110, reducing the cause of poor opening and closing of the electromagnetic valve 10 due to unstable connection between the elastic member 300 and the piston assembly 200, and improving the reliability of the electromagnetic valve 10. In the direction from the first end 310 to the second end 320, the outer diameter of the elastic member 300 gradually increases, and it can be appreciated that the outer diameter of the first end 310 of the elastic member 300 is smaller than the outer diameter of the second end 320, so that the deformation of the elastic member 300 to displace due to the movement of the piston assembly 200 when closing or opening the valve can be reduced, and the friction generated between the elastic member 300 and the inner wall of the valve cavity 110 can be reduced, so that the influence of the elastic member 300 on the valve opening and closing of the electromagnetic valve 10 can be reduced, and the service life of the electromagnetic valve 10 can be prolonged.
The outer diameter of the elastic member 300 gradually increases in a direction from the first end 310 to the second end 320, and may be that the outer diameter of the elastic member 300 gradually increases from the first end 310 to the second end 320; the elastic member 300 may have any position between the first end 310 and the second end 320, P, and the outer diameter of the elastic member 300 may gradually increase from P to the second end 320; it is also possible that the outer diameter of the elastic member 300 is gradually increased from the first end 310 to the point P.
As the outer diameter of the portion of the elastic member 300 between the point P and the second end 320 gradually increases, the outer diameter of the remaining portion of the elastic member 300 (the portion between the first end 310 and the point P) is not changed. The remaining other portion of the elastic member 300 is composed of a plurality of coils which are equally disposed in outer diameters. By mutually tightening the plurality of coils, the structural strength of the portion along the axial direction of the elastic member 300 is improved, so that the coaxiality of the plurality of coils of the portion is enhanced, and the movable connection stability of the portion matching piston assembly 200 is improved. Similarly, as the outer diameter of the portion of the elastic member 300 from the first end 310 to the point P gradually increases, the outer diameter of the remaining portion of the elastic member 300 (the portion from the point P to the second end 320) is unchanged.
In one embodiment, when the valve port 120 is open, a gap is provided between the elastic member 300 and the inner wall of the receiving chamber 111.
Referring to fig. 1, an elastic member 300 is sleeved on the outer periphery of the piston assembly 200 and is connected to the piston assembly 200. When the valve port 120 is opened, the piston assembly 200 moves away from the valve port 120 in the axial direction of the valve body 100, and the elastic member 300 resumes elastic deformation and has a portion that enters the accommodation chamber 111 with the piston assembly 200. The gap is formed between the part of the elastic member 300 entering the accommodating chamber 111 and the inner wall of the accommodating chamber 111, so that the elastic member 300 is prevented from being worn or deformed due to interference with the inner wall of the accommodating chamber 111, and the reliability of the action of the electromagnetic valve 10 is improved. Meanwhile, the first end 310 of the elastic member 300 is prevented from being displaced from the piston assembly 200 due to interference between the elastic member 300 and the inner wall of the accommodating cavity 111, so that the stability of the fit between the elastic member 300 and the piston assembly 200 is improved.
In one embodiment, the guide cavity 112 forms an included angle θ with two generatrices of the guide cavity 112 on a section cut by a plane along the axial direction of the valve body 100; when the valve port 120 is opened, on a section of the elastic member 300 cut along a plane in the axial direction, an included angle formed by two generatrix lines of the elastic member 300 is α; when the valve port 120 is closed, on a cross section of the elastic member 300 along a plane of the axial direction, an included angle formed by two generatrix of the elastic member 300 is β, α is smaller than θ, and β is smaller than θ.
Referring to fig. 3, 5 and 6, the guide cavity 112 is flared in a direction approaching the valve port 120, and the guide cavity 112 is substantially truncated cone-shaped. The guide chamber 112 forms an included angle θ between two generatrices of the guide chamber 112 in a cross section taken along a plane of the axial direction of the valve body 100. The outer diameter of the elastic member 300 gradually increases in a direction from the first end 310 to the second end 320, and the elastic member 300 has a substantially truncated cone shape. When the valve port 120 is closed, the piston assembly 200 approaches the valve port 120, and the elastic member 300 is compressed in the axial direction of the valve body 100. At this time, on a section of the elastic member 300 cut along a plane of the axial direction thereof, an included angle formed by two generatrix lines of the elastic member 300 is β. Beta is smaller than theta, when the valve port 120 is closed, interference between the elastic member 300 and the guide chamber 112 can be avoided, and the reliability of the electromagnetic valve 10 is improved. When the valve port 120 is opened, the piston assembly 200 is away from the valve port 120, and the elastic member 300 is restored to elastic deformation in the axial direction of the valve body 100. At this time, on a section of the elastic member 300 cut along a plane of the axial direction thereof, an included angle formed by two generatrix lines of the elastic member 300 is α. Since the elastic member 300 has a substantially truncated cone shape, α is not equal to β. Alpha is smaller than theta, when the valve port 120 is opened, interference between the elastic member 300 and the guide chamber 112 can be avoided, and the reliability of the electromagnetic valve 10 can be improved. When α is less than θ and β is less than θ, it is indicated that the elastic member 300 does not interfere with the guide chamber 112 during both opening and closing of the valve.
In an embodiment, the second connecting section 220 has an abutment surface 221 protruding from the first connecting section 210 and facing the valve port 120, the first end 310 abuts against the abutment surface 221, and the elastic member 300 is in clearance fit with the sidewall of the first connecting section 210.
Referring to fig. 1 and 2, the first connecting section 210 is disposed between the second connecting section 220 and the valve port 120, and is connected to the second connecting section 220, and the outer diameter of the second connecting section 220 is larger than that of the first connecting section 210. The portion of the second connecting section 220 protruding from the first connecting section 210 includes a sidewall and an abutment surface 221, the abutment surface 221 is disposed between the sidewall of the second connecting section 220 and the sidewall of the first connecting section 210, and connects the sidewall of the second connecting section 220 and the sidewall of the first connecting section 210, and the abutment surface 221 faces the valve port 120. The first end 310 of the elastic member 300 abuts against the abutment surface 221, and the second end 320 abuts against the edge of the valve port 120, so as to limit the matching position of the elastic member 300 and the piston assembly 200, and improve the positioning capability of the elastic member 300 and the piston assembly 200. The elastic member 300 is sleeved on the outer periphery of the first connecting section 210 and is in clearance fit with the side wall of the first connecting section 210, so that interference between the elastic member 300 and the side wall of the first connecting section 210 is avoided, and the fit stability between the elastic member 300 and the piston assembly 200 is improved. At the same time, the displacement of the elastic member 300 along with the movement of the piston assembly 200 is avoided, so as to better fix the position of the elastic member 300 in the valve cavity 110.
The utility model also provides a refrigeration device, which comprises the electromagnetic valve 10, wherein the specific structure of the electromagnetic valve 10 refers to the embodiment, and as the refrigeration device adopts all the technical schemes of all the embodiments, at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The utility model also provides an automobile, which comprises the refrigeration equipment, and the specific structure of the refrigeration equipment refers to the embodiment, and because the automobile adopts all the technical schemes of all the embodiments, the automobile at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (12)
1. A solenoid valve, comprising:
the valve body is provided with a valve cavity and a valve port communicated with the valve cavity;
the piston assembly is arranged in the valve cavity and used for opening and closing the valve port, and comprises a first connecting section close to the valve port and a second connecting section far away from the valve port, and the outer diameter of the second connecting section is larger than that of the first connecting section;
the elastic piece is provided with a first end and a second end which are opposite, the first end is sleeved on the periphery of the first connecting section, the second end is abutted to the edge of the valve port, and the periphery of the first end does not protrude out of the periphery of the second connecting section.
2. The solenoid valve of claim 1 wherein said first connecting section has an outer diameter D 1 The outer diameter of the second connecting section is D 2 The wire diameter of the elastic piece is D, and the D is 1 、D 2 And d satisfies: d (D) 1 +2.5d＜D 2 。
3. The solenoid valve of claim 2, wherein the valve chamber includes a receiving chamber and a guide chamber, the second connecting section being slidably fitted to an inner wall of the receiving chamber, the guide chamber being disposed adjacent the valve port, the guide chamber being flared in a direction adjacent the valve port.
4. A solenoid valve according to claim 3 wherein said pilot chamber is rectilinear in cross-section taken along a plane in the axial direction of said valve body.
5. The solenoid valve of claim 4 wherein the radius transitions between the interior wall of the pilot chamber and the interior wall of the containment chamber; and/or the inner wall of the guide cavity and the end face of the free end are in rounded transition.
6. A solenoid valve according to claim 3 wherein the outer surface of said second connecting section is in clearance fit with the inner wall of said receiving chamber.
7. A solenoid valve according to claim 3 wherein said elastomeric member has an outer diameter that gradually increases in a direction from said first end to said second end.
8. The solenoid valve of claim 7, wherein a gap is provided between the resilient member and an inner wall of the receiving chamber when the valve port is open.
9. The electromagnetic valve according to claim 8, wherein the guide chamber has an included angle θ formed by two generatrix lines of the guide chamber in a cross section taken along a plane of the axial direction of the valve body; when the valve port is opened, an included angle formed by two generatrix of the elastic piece on a section sectioned by a plane of the elastic piece along the axial direction of the elastic piece is alpha; when the valve port is closed, on the section of the elastic piece cut along the plane of the axial direction of the elastic piece, an included angle formed by two generatrix of the elastic piece is beta, alpha is smaller than theta, and beta is smaller than theta.
10. The electromagnetic valve according to claim 7, wherein the second connecting section has an abutment surface protruding from the first connecting section and facing the valve port, the first end abutting the abutment surface, and the resilient member being in clearance fit with a sidewall of the first connecting section.
11. A refrigeration device comprising a solenoid valve according to any one of claims 1 to 10.
12. An automobile comprising the refrigeration apparatus of claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520208.0U CN219432444U (en) | 2023-03-16 | 2023-03-16 | Solenoid valve, refrigeration plant and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520208.0U CN219432444U (en) | 2023-03-16 | 2023-03-16 | Solenoid valve, refrigeration plant and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219432444U true CN219432444U (en) | 2023-07-28 |
Family
ID=87331022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320520208.0U Active CN219432444U (en) | 2023-03-16 | 2023-03-16 | Solenoid valve, refrigeration plant and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219432444U (en) |
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2023
- 2023-03-16 CN CN202320520208.0U patent/CN219432444U/en active Active
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