Exhaust valve plate structure and compressor

Abstract

The utility model discloses an exhaust valve plate structure which comprises a valve plate body, a reed group which is integrally arranged with the valve plate body and corresponds to each air suction hole on a compressor is arranged in the valve plate body, and the reed group comprises two groups of reed pieces which are parallel to each other and are symmetrical about the central line of the reed group. A gap is formed between the reed set and the valve block body in a matched mode, vent grooves located in the outer sides of the cantilever parts of the two reed pieces are symmetrically formed in the valve block body, and arc-shaped notches corresponding to the adjacent vent grooves are formed in the cantilever parts of the two reed pieces respectively. The exhaust device is simple in structure, stress generated when the exhaust device swings can be reduced, the situation of breakage of the exhaust device is reduced, the use stability of the exhaust device is improved, production and machining can be facilitated, the production cost is effectively reduced, and the exhaust efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically to an exhaust valve plate structure and a compressor. Background Technology

[0002] The main components of a refrigerator compressor are the suction and discharge valves. Their operation involves opening and closing these valves to deliver refrigerant to the refrigeration system. During opening and closing, the valve springs are subjected to alternating forces, requiring high fatigue resistance and mechanical strength. Conventional valve springs are circular, and these suction valves offer high reliability. Under the same conditions, the area of ​​the valve spring is directly proportional to the mass flow rate; the higher the mass flow rate, the higher the compressor efficiency. This places new demands on the valve structure and its stability. Utility Model Content

[0003] The purpose of this invention is to propose an exhaust valve plate structure and a compressor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model employs the following technical means:

[0005] An exhaust valve structure includes a valve body. The valve body has a reed assembly integrally formed with the valve body and corresponding to each intake port on the compressor. The reed assembly includes two sets of parallel reed members symmetrical about the center line of the reed assembly. A gap is provided between the reed assembly and the valve body. The valve body has symmetrically formed ventilation grooves located outside the cantilever portions of the two reed members. The cantilever portions of the two reed members each have an arc-shaped notch corresponding to the adjacent ventilation groove.

[0006] Furthermore, the tongue spring includes a tail end, a cantilever part, and a tongue part, which are fixed together in sequence. The tail end is a centrally symmetrical rectangular structure. One side of the cantilever part is straight, and the other side is a concave arc that narrows and then expands. The tongue part is a circular structure, and the two sides of the cantilever part are tangent to the tongue part.

[0007] Furthermore, the two tongue springs are not connected, and the minimum gap between the two tongue springs is greater than the gap between the tongue spring assembly and the valve plate body. The gap includes a first gap and a second gap. The first gap is the gap section of the vent groove near the tail end of the tongue spring, and the second gap is the gap section of the vent groove near the tongue. The width of the second gap is 0.8 mm, the width of the first gap is 1.0 mm, and the minimum gap between the two tongue springs is 1.1 mm.

[0008] Furthermore, the valve body is composed of a first part, a second part, and a third part connected in sequence. The first part is a right trapezoid, the second part is a rectangle, and the third part is a right trapezoid. The vertical lines of the first part and the third part are on the same straight line, and the height of the first part is greater than that of the third part. In this embodiment, the lower base and upper base of the first part and the second part are equal, and they differ only in height. This makes one side of the valve body converge from both ends to the middle. However, the length of the lower base of the first part and the third part is less than the length of the second part. The connection between the first part, the third part, and the second part is set with an arc shape. Mounting holes are provided at both ends of the side of the first part and the third part away from the second part.

[0009] Secondly, this application provides a compressor, including the exhaust valve plate structure described above.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention has a simple structure, which can reduce the stress when the device swings, reduce the occurrence of device breakage, improve the stability of the device, facilitate production and processing, effectively reduce production costs, and ensure exhaust efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0013] Figure 2 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0014] Figure 3 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0015] Figure 4 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0016] Figure 5 This is a schematic diagram of the product structure in an embodiment of this utility model. Detailed Implementation

[0017] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. The following embodiments and drawings are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. The drawings only schematically show the parts related to the technical solution of this application, and do not represent their actual structure as a product.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0019] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0023] In this embodiment, an exhaust valve plate structure includes a valve plate body 100. The valve plate body 100 contains a reed assembly 200 integrally formed with the valve plate body 100 and corresponding to each intake port on the compressor. The reed assembly 200 includes two parallel and symmetrical reed members 210 about the centerline of the reed assembly 200. A gap 400 is provided between the reed assembly 200 and the valve plate body 100. Ventilation grooves 300 are symmetrically formed on the valve plate body 100, located outside the cantilever portions 212 of the two reed members 210. The cantilever portions 212 of the two reed members 210 are respectively provided with arc-shaped notches 220 corresponding to adjacent ventilation grooves 300. By providing two sets of reed members 210, the stress during device oscillation can be reduced, the likelihood of device breakage can be decreased, and the stability of device operation can be improved.

[0024] In one or more possible embodiments of this utility model, to facilitate further explanation of the shape and structural relationship between the tongue spring 210 and the valve plate body 100, the tongue spring 210 disclosed in this embodiment includes a tail end 211, a cantilever portion 212, and a tongue portion 213. The tail end 211, the cantilever portion 212, and the tongue portion 213 are sequentially and integrally fixed. The tail end 211 has a centrally symmetrical rectangular structure. One side of the cantilever portion 212 is straight, and the other side is a concave arc that narrows and then expands. The tongue portion 213 has a circular structure, and the two sides of the cantilever portion 212 are tangent to the tongue portion 213. As can be seen from the accompanying drawings, the connection between the tail end 211 and the valve plate body 100 is made of arc, which improves the stability of the tongue spring 210 structure and prevents the root of the tongue spring 210 from tearing when it is frequently opened.

[0025] In one or more possible embodiments of this utility model, the two reeds 210 are not connected, and the minimum gap between the two reeds 210 is greater than the gap 400 between the reed assembly 200 and the valve body 100. The gap 400 includes a first gap 410 and a second gap 420. The first gap 410 is a gap section of the venting groove 300 near the tail end 211 of the reed 210, and the second gap 420 is a gap section of the venting groove 300 near the tongue portion 213. The width of the second gap 420 is 0.8 mm, the width of the first gap 410 is 1.0 mm, and the minimum gap between the two reeds 210 is 1.1 mm.

[0026] In one or more possible embodiments of this utility model, to describe the shape of the valve plate body 100, the valve plate body 100 is composed of a first part 110, a second part 120, and a third part 130 connected in sequence. The first part 110 is a right trapezoid, the second part 120 is a rectangle, and the third part 130 is a right trapezoid. The vertical lines of the first part 110 and the third part 130 are on the same straight line, and the height of the first part 110 is greater than that of the third part 130. In this embodiment, the lower base and upper base of the first part 110 and the second part 120 are correspondingly equal, and the two differ only in height. Similarly, this causes one side of the valve body 100 to converge from both ends toward the middle, but the bottom lengths of the first part 110 and the third part 130 are both less than the length of the second part 120. The first part 110, the third part 130 and the second part 120 are all connected in an arc shape. The first part 110 and the third part 130 away from the second part 120 are provided with mounting holes 140 at both ends. Through the above design of the shape and structure of the valve body 100, it is easy to manufacture and process, effectively reducing production costs, ensuring exhaust efficiency, improving refrigeration effect, and reducing compressor energy consumption.

[0027] Secondly, this application provides a compressor, including the exhaust valve plate structure described above.

[0028] The specific embodiments disclosed in this utility model fall within the protection scope of the claims of this utility model and are specific subordinate implementations of the feature parts of this utility model. The protection content of the specific embodiments is merely an explanation of the protection scope of the claims of this utility model. The protection scope of this utility model is not limited to the protection content of the specific embodiments, and the protection content of the specific embodiments should not be construed as a limitation on the protection scope of the claims of this utility model.

Claims

1. An exhaust valve plate structure, comprising a valve plate body (100), characterized in that: The valve body (100) is provided with a reed assembly (200) that is integrally formed with the valve body (100) and corresponds to each suction port on the compressor. The reed assembly (200) includes two sets of parallel reed members (210) that are symmetrical about the center line of the reed assembly (200). A gap (400) is provided between the reed assembly (200) and the valve body (100). The valve body (100) is symmetrically provided with ventilation grooves (300) located outside the cantilever portion (212) of the two reed members (210). The cantilever portion (212) of the two reed members (210) is provided with an arc-shaped notch (220) corresponding to the adjacent ventilation groove (300).

2. The exhaust valve plate structure according to claim 1, characterized in that: The tongue spring component (210) includes a tail end (211), a cantilever (212), and a tongue (213). The tail end (211), the cantilever (212), and the tongue (213) are fixed together in sequence. The tail end (211) is a rectangular structure with central symmetry. One side of the cantilever (212) is straight, and the other side is a concave arc that narrows and then expands. The tongue (213) is a circular structure. The two sides of the cantilever (212) are tangent to the tongue (213).

3. The exhaust valve plate structure according to claim 1, characterized in that: The two reeds (210) are not connected, and the minimum gap between the two reeds (210) is greater than the gap (400) between the reed assembly (200) and the valve body (100).

4. The exhaust valve plate structure according to claim 3, characterized in that: The gap (400) includes a first gap (410) and a second gap (420). The first gap (410) is a gap section of the venting groove (300) near the tail end (211) of the tongue member (210). The second gap (420) is a gap section of the venting groove (300) near the tongue part (213). The width of the second gap (420) is 0.8 mm, the width of the first gap (410) is 1.0 mm, and the minimum gap between the two tongue members (210) is 1.1 mm.

5. The exhaust valve plate structure according to claim 1, characterized in that: The valve body (100) is composed of a first part (110), a second part (120), and a third part (130) connected in sequence. The first part (110) is a right trapezoid, the second part (120) is a rectangle, and the third part (130) is a right trapezoid. The vertical lines of the first part (110) and the third part (130) are on the same straight line, and the height of the first part (110) is greater than that of the third part (130).

6. The exhaust valve plate structure according to claim 5, characterized in that: The bottom and top of the first part (110) and the second part (120) are equal. One side of the valve body (100) converges from both ends to the middle. However, the length of the bottom of the first part (110) and the third part (130) is less than the length of the second part (120). The first part (110) and the third part (130) are connected to the second part (120) in an arc shape. The first part (110) and the third part (130) are provided with mounting holes (140) at both ends of the side of the first part (110) and the third part (130) away from the second part (120).

7. A compressor, characterized in that: Including the exhaust valve plate structure as described in any one of claims 1-6.

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