Valve plate fixing mechanism and compressor

Abstract

The utility model provides a valve plate fixing mechanism and a compressor, and relates to the technical field of compressors. The valve plate fixing mechanism comprises a middle plate, a rivet and two valve plate assemblies, the two valve plate assemblies are oppositely arranged on the two sides of the middle plate, the rivet is used for penetrating through the middle plate and the two valve plate assemblies at the same time so that the two valve plate assemblies can be fixed to the middle plate, and the good fixing effect on the two valve plate assemblies can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a valve plate fixing mechanism and a compressor. Background Art

[0002] The compressor is a fluid machine that boosts low-pressure gas to high-pressure gas and is the heart of the refrigeration system. It sucks low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it through the motor, and discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] In the existing rotor compressor, a valve plate assembly is installed on the cylinder or bearing of the compressor. Once two valve plate assemblies need to be installed on the compressor, the original fixing method of installing one valve plate assembly is not sufficient to stably install the two valve plate assemblies, and the fixing effect is poor. Utility Model Content

[0004] The purpose of the present application includes, for example, providing a valve plate fixing mechanism that can achieve a better fixing effect on two valve plate assemblies.

[0005] The purpose of the present application also includes providing a compressor that can achieve a better fixing effect on two valve plate assemblies.

[0006] This application can be implemented as follows:

[0007] The present application provides a valve plate fixing mechanism, which includes an intermediate plate, a rivet and two valve plate assemblies, wherein the two valve plate assemblies are relatively arranged on both sides of the intermediate plate, and the rivet is used to simultaneously pass through the intermediate plate and the two valve plate assemblies to fix the two valve plate assemblies to the intermediate plate.

[0008] Optionally, the valve plate assembly includes a valve plate and a limit plate, the valve plate is in contact with the middle plate, the limit plate is arranged on the side of the valve plate facing away from the middle plate, and the rivet passes through the middle plate, the valve plate and the limit plate at the same time to fix the valve plate and the limit plate to the middle plate.

[0009] Optionally, the rivet includes a main body, a head and a tail, the head, the main body and the tail are connected in sequence, and the diameters of the head and the tail are both larger than the diameter of the main body.

[0010] Optionally, the valve plate assembly has a fixed end and an air outlet end opposite to each other, and the rivet passes through the middle plate and the two valve plate assemblies at the same time at a position close to the fixed end.

[0011] Optionally, receiving grooves are provided on both sides of the middle plate, and the two valve plate assemblies are respectively arranged in the two receiving grooves.

[0012] Optionally, the depth of the accommodating groove is 2.4-2.9 mm.

[0013] Optionally, the thickness of the intermediate plate is 10-13.5 mm.

[0014] Optionally, the length of the rivet is 12-16.5 mm.

[0015] Optionally, the rivet is a solid rivet, a hollow rivet, a countersunk rivet or a blind rivet.

[0016] The present application also provides a compressor, comprising the valve plate fixing mechanism.

[0017] The beneficial effects of the valve plate fixing mechanism and the compressor of the present application include, for example: in order to achieve a better fixing effect on the two valve plate assemblies, a valve plate fixing mechanism is designed, which includes an intermediate plate, rivets and two valve plate assemblies, and the two valve plate assemblies are relatively arranged on both sides of the intermediate plate. When fixing the two valve plate assemblies, the rivets are passed through the intermediate plate and the two valve plate assemblies at the same time, thereby fixing the two valve plate assemblies to the intermediate plate, which achieves a better fixing effect on the two valve plate assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a partial cross-sectional view of the valve plate fixing mechanism in the embodiment of the present application.

[0020] Icon: 1-middle plate; 11-receiving groove; 2-rivet; 21-main body; 22-head; 23-tail; 3-valve plate assembly; 31-valve plate; 32-limiting plate; 33-fixed end; 34-air outlet end. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0026] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0027] The inventor of the present application discovered that in the existing rotor compressor, a valve plate assembly is installed on the cylinder or bearing of the compressor. However, when two valve plate assemblies need to be installed on the compressor, the original fixing method of installing one valve plate assembly is not sufficient to stably install the two valve plate assemblies, and the fixing effect of installing two valve plate assemblies is poor. The embodiments of the present application provide a valve plate fixing mechanism that can at least solve the above-mentioned technical problems.

[0028] Please refer to Figure 1 The valve plate fixing mechanism provided in the embodiment of the present application includes an intermediate plate 1, a rivet 2 and two valve plate assemblies 3. The two valve plate assemblies 3 are arranged on both sides of the intermediate plate 1 opposite to each other. The rivet 2 is used to pass through the intermediate plate 1 and the two valve plate assemblies 3 at the same time to fix the two valve plate assemblies 3 to the intermediate plate 1.

[0029] It should be pointed out that through holes are provided on the middle plate 1 and the two valve plate assemblies 3, the center lines of the through holes on the middle plate 1 and the through holes on the two valve plate assemblies 3 coincide, and the rivets 2 pass through the through holes on the middle plate 1 and the through holes on the two valve plate assemblies 3 at the same time.

[0030] When fixing the two valve plate assemblies 3 , the rivets 2 are passed through the through holes of the middle plate 1 and the through holes on the two valve plate assemblies 3 at the same time, so that the two valve plate assemblies 3 are riveted and fixed to the middle plate 1 , which has a better fixing effect on the two valve plate assemblies 3 .

[0031] In this embodiment, the valve plate assembly 3 includes a valve plate 31 and a limit plate 32. The valve plate 31 is in contact with the middle plate 1. The limit plate 32 is arranged on the side of the valve plate 31 facing away from the middle plate 1. The rivet 2 passes through the middle plate 1, the valve plate 31 and the limit plate 32 at the same time to fix the valve plate 31 and the limit plate 32 to the middle plate 1.

[0032] It should be pointed out that both the valve plate 31 and the limit plate 32 are provided with through holes, the center lines of the through holes on the middle plate 1, the through holes on the valve plate 31, and the through holes on the limit plates 32 coincide, and the rivet 2 passes through the through holes on the middle plate 1, the through holes on the two valve plates 31, and the through holes on the two limit plates 32 at the same time.

[0033] When fixing the two valve plate assemblies 3, the rivets 2 are simultaneously passed through the through holes on the middle plate 1, the through holes on the two valve plates 31, and the through holes on the two limit plates 32, so that the two valve plates 31 and the two limit plates 32 are riveted and fixed to the middle plate 1, which has a better fixing effect on the two valve plates 31 and the two limit plates 32.

[0034] In this embodiment, the rivet 2 includes a main body 21, a head 22 and a tail 23, which are connected in sequence. The diameters of the head 22 and the tail 23 are both larger than the diameter of the main body 21.

[0035] It should be noted that, in this embodiment, the cross-sectional shapes of the main body 21, the head 22 and the tail 23 along the length direction perpendicular to the rivet 2 are all circular as an example. The main body 21 is simultaneously penetrated through the through hole on the middle plate 1, the through holes on the two valve plates 31 and the through holes on the two limit plates 32. The head 22 and the tail 23 extend to the outside of the corresponding limit plates 32 respectively. Since the diameters of the head 22 and the tail 23 are both larger than the diameter of the main body 21, the head 22 can press the valve plate 31 and the limit plate 32 on one side of the middle plate 1 onto the middle plate 1, and the tail 23 can press the valve plate 31 and the limit plate 32 on the other side of the middle plate 1 onto the middle plate 1, thereby achieving a better fixing effect on the two valve plates 31 and the two limit plates 32.

[0036] In other embodiments, the cross-sectional shape of the head 22 and the tail 23 perpendicular to the length direction of the rivet 2 can be rectangular or irregular, as long as the head 22 and the tail 23 can respectively press the valve plate 31 and the limit plate 32 on both sides of the middle plate 1 onto the middle plate 1.

[0037] There are two ways to install the rivet 2. One of the ways is to install the rivet 2 from top to bottom. The head 22 of the rivet 2 first fixes the valve plate 31 and the limit plate 32 on the upper side of the middle plate 1. After the tail 23 of the rivet 2 passes through the limit plate 32 on the lower side of the middle plate 1, a force is applied to deform the tail 23 of the rivet 2 and fix the valve plate 31 and the limit plate 32 on the lower side of the middle plate 1, so that one rivet 2 can simultaneously rivet two sets of valve plates 31 and limit plates. The role of 32; another installation method is to penetrate the rivet 2 from bottom to top, the head 22 of the rivet 2 first fixes the valve plate 31 and the limit plate 32 on the lower side of the middle plate 1, and then the tail 23 of the rivet 2 passes through the limit plate 32 on the upper side of the middle plate 1. After that, a force is applied to deform the tail 23 of the rivet 2 and fix the valve plate 31 and the limit plate 32 on the upper side of the middle plate 1. It can also achieve the role of one rivet 2 in riveting two groups of valve plates 31 and limit plates 32 at the same time.

[0038] By simultaneously riveting two groups of valve plates 31 and limiting plates 32 with one rivet 2 , the number of rivets 2 can be saved, thereby reducing the number of riveting processes.

[0039] In this embodiment, the valve plate assembly 3 has an opposite fixed end 33 and an air outlet end 34 , and the rivet 2 passes through the middle plate 1 and the two valve plate assemblies 3 at the same time at a position close to the fixed end 33 .

[0040] At a position near the fixed end 33, the valve plate 31 and the limit plate 32 are in contact with each other; at a position near the air outlet end 34, there is a gap between the valve plate 31 and the limit plate 32; the rivet 2 passes through the through hole on the middle plate 1, the through holes on the two valve plates 31, and the through holes on the two limit plates 32 at a position near the fixed end 33, making it easier for the valve plate 31 to deform toward the limit plate 32, thereby facilitating the discharge of gas in the compressor through the valve plate 31.

[0041] In this embodiment, receiving grooves 11 are provided on both sides of the middle plate 1 , and the two valve plate assemblies 3 are respectively disposed in the two receiving grooves 11 .

[0042] The two groups of valve plates 31 and limit plates 32 are respectively arranged in the two receiving grooves 11, the valve plate 31 is in contact with the inner bottom wall of the receiving groove 11, the limit plate 32 is arranged on the side of the valve plate 31 away from the middle plate 1, and the sum of the thicknesses of the valve plate 31 and the limit plate 32 is less than the depth of the receiving groove 11, which can prevent the valve plate 31 and the limit plate 32 from detaching from the middle plate 1 during the riveting process to a certain extent.

[0043] In this embodiment, the depth H1 of the receiving groove 11 is 2.4-2.9 mm.

[0044] Exemplarily, the depth H1 of the receiving groove 11 is 2.4 mm, 2.7 mm or 2.9 mm. It can be understood that the depth H1 of the receiving groove 11 can be selected within the above range according to actual working conditions.

[0045] In this embodiment, the thickness H2 of the middle plate 1 is 10-13.5 mm.

[0046] Exemplarily, the thickness H2 of the middle plate 1 is 10 mm, 12 mm or 13.5 mm. It can be understood that the thickness H2 of the middle plate 1 can be selected within the above range according to actual working conditions.

[0047] In this embodiment, the length H3 of the rivet 2 is 12-16.5 mm.

[0048] It should be noted that the length H3 of the rivet 2 is the overall length of the rivet 2 after riveting, that is, the overall length of the head 22, the main body 21 and the tail 23. Exemplarily, the length H3 of the rivet 2 is 12 mm, 14 mm or 16.5 mm. It is understandable that the length H3 of the rivet 2 can be selected within the above range according to actual working conditions.

[0049] In this embodiment, the rivet 2 is a solid rivet, a hollow rivet, a countersunk rivet or a blind rivet.

[0050] For example, when the rivet 2 is a solid rivet, the head 22 of the solid rivet is struck, and as the external force acts, the head 22 of the solid rivet and part of the rivet body undergo plastic deformation, gradually thicken and form a swage, and the valve plate 31 and the limit plate 32 are pressed more tightly against the middle plate 1. When the rivet 2 is a blind rivet, pulling the core rod inside the blind rivet will cause the rivet tubular body to expand radially, thereby squeezing the surrounding material to form a strong clamping force, and a swage is also formed at the other end of the blind rivet, ensuring that the valve plate 31 and the limit plate 32 are pressed more tightly against the middle plate 1.

[0051] In other embodiments, the rivet 2 may also be a flat head rivet, an R-type rivet, a round head rivet, etc.

[0052] The embodiment of the present application further provides a compressor, comprising the above-mentioned valve plate fixing mechanism. The technical effect achieved by the compressor is substantially the same as the technical effect achieved by the above-mentioned valve plate fixing mechanism, and will not be described in detail here.

[0053] In summary, the embodiment of the present application provides a valve plate fixing mechanism and a compressor. When fixing the two valve plate assemblies 3, the rivet 2 is simultaneously passed through the through holes on the middle plate 1, the through holes on the two valve plates 31, and the through holes on the two limit plates 32, so that the main body 21 of the rivet 2 is simultaneously penetrated through the through holes on the middle plate 1, the through holes on the two valve plates 31, and the through holes on the two limit plates 32, the head 22 and the tail 23 respectively extend to the outside of the corresponding limit plates 32, and the head 22 and the tail 23 respectively press the valve plates 31 and the limit plates 32 on both sides of the middle plate 1 onto the middle plate 1, thereby riveting and fixing the two valve plates 31 and the two limit plates 32 to the middle plate 1, which has a better fixing effect on the two valve plates 31 and the two limit plates 32.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A valve plate fixing mechanism, characterized in that: It comprises an intermediate plate (1), a rivet (2) and two valve plate assemblies (3), wherein the two valve plate assemblies (3) are arranged oppositely on two sides of the intermediate plate (1), and the rivet (2) is used to simultaneously pass through the intermediate plate (1) and the two valve plate assemblies (3) so as to fix the two valve plate assemblies (3) to the intermediate plate (1).

2. The valve plate fixing mechanism according to claim 1, characterized in that: The valve plate assembly (3) comprises a valve plate (31) and a limiting plate (32); the valve plate (31) is fitted with the middle plate (1); the limiting plate (32) is arranged on a side of the valve plate (31) facing away from the middle plate (1); and the rivet (2) passes through the middle plate (1), the valve plate (31) and the limiting plate (32) at the same time to fix the valve plate (31) and the limiting plate (32) to the middle plate (1).

3. The valve plate fixing mechanism according to claim 1, characterized in that: The rivet (2) comprises a main body (21), a head (22) and a tail (23); the head (22), the main body (21) and the tail (23) are connected in sequence; and the diameters of the head (22) and the tail (23) are both larger than the diameter of the main body (21).

4. The valve plate fixing mechanism according to claim 1, characterized in that: The valve plate assembly (3) has an opposite fixed end (33) and an air outlet end (34), and the rivet (2) simultaneously passes through the middle plate (1) and the two valve plate assemblies (3) at a position close to the fixed end (33).

5. The valve plate fixing mechanism according to claim 1, characterized in that: Both sides of the middle plate (1) are provided with receiving grooves (11), and the two valve plate assemblies (3) are respectively arranged in the two receiving grooves (11).

6. The valve plate fixing mechanism according to claim 5, characterized in that: The depth of the containing groove (11) is 2.4-2.9 mm.

7. The valve plate fixing mechanism according to claim 1, characterized in that: The thickness of the intermediate plate (1) is 10-13.5 mm.

8. The valve plate fixing mechanism according to claim 1, characterized in that: The length of the rivet (2) is 12-16.5 mm.

9. The valve plate fixing mechanism according to claim 1, characterized in that: The rivet (2) is a solid rivet, a hollow rivet, a countersunk rivet or a blind rivet.

10. A compressor, characterized in that: It comprises the valve plate fixing mechanism as described in any one of claims 1 to 9.

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