Noise reduction valve group structure of refrigeration compressor

Abstract

The utility model discloses a noise reduction valve group structure of a refrigeration compressor, which comprises a valve plate, an exhaust port is arranged on the valve plate, a limiter covering the exhaust port is connected onto the valve plate, an exhaust valve plate is arranged between the limiter and the valve plate, and damping noise reduction parts are arranged on one side of the valve plate and one side of the limiter close to the exhaust valve plate. The utility model provides a noise reduction valve group structure of a refrigeration compressor, which can reduce noise generated in the working process of a limiting valve plate while ensuring that the exhaust valve plate is limited, damping noise reduction parts are arranged on an exhaust port and a limiter, and the damping noise reduction parts can reduce the noise generated in the impact process of the exhaust valve plate, so that the noise reduction effect of the exhaust valve plate is improved, and the service life of the exhaust valve plate is prolonged. Meanwhile, the buffering effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a noise reduction valve group structure for a refrigeration compressor. Background Art

[0002] With the continuous improvement of refrigeration compressor technology, reducing the noise generated by refrigeration compressors is crucial in the refrigeration compressor industry. Among the many noise sources, the noise generated by the valve group has a great impact on the refrigeration compressor, so reducing the valve group noise is imminent.

[0003] For example, publication number "CN116104737A" discloses "valve plate assembly, pump body assembly and compressor", including a valve plate, provided with at least two exhaust holes; an exhaust valve sheet, which is attached to a side surface of the valve plate, with a first end fixed to the valve plate and a second end being a free end, wherein the first end and the second end are arranged relative to each other; the exhaust valve sheet covers all the exhaust holes, and the free end is away from or against the side surface of the valve plate, and can open or close all the exhaust holes; the exhaust holes are arranged in an array along the direction from the first end to the second end of the exhaust valve sheet. In actual applications, although the limiter can limit the lift of the exhaust valve sheet and can effectively prevent the exhaust valve sheet from breaking, the noise becomes louder when the exhaust valve sheet hits the limiter and hits the valve plate when resetting, which also leads to an increase in the overall noise of the refrigeration compressor. Summary of the invention

[0004] In view of the problem in the prior art mentioned in the background technology that the exhaust valve plate hits the limiter and causes excessive noise, the utility model provides a refrigeration compressor noise reduction valve group structure, which can reduce the noise generated by the limit valve plate during operation while ensuring the limitation of the exhaust valve plate.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions.

[0006] A refrigeration compressor noise reduction valve group structure includes a valve plate, an exhaust port is arranged on the valve plate, a stopper covering the exhaust port is connected to the valve plate, an exhaust valve sheet is arranged between the stopper and the valve plate, and a damping noise reduction member is arranged on the valve plate and the side of the stopper close to the exhaust valve sheet. In the present application, the noise generated by the exhaust valve sheet during operation is reduced by arranging damping noise reduction members on both sides of the exhaust valve sheet, wherein the structure in the present application is arranged between the compressor cylinder head and the crankcase, the stopper is arranged on the valve plate, and a gap is left between the stopper and the valve plate, so that the exhaust valve sheet located between the stopper and the valve plate can exhaust and control the movement stroke of the exhaust valve sheet to avoid excessive displacement of the exhaust valve sheet, wherein damping noise reduction members are arranged on the exhaust port and the stopper, and the damping noise reduction member can reduce the noise generated by the exhaust valve sheet during the impact process and achieve a buffering effect at the same time, wherein the damping noise reduction members arranged on the stopper and the exhaust port are arranged on the side close to the exhaust valve sheet.

[0007] Preferably, the damping noise reduction component includes a limit damping noise reduction sleeve detachably connected to the limiter, and a gap is left between the limit damping noise reduction sleeve and the exhaust port. A limit damping noise reduction sleeve is arranged on the limiter near the exhaust valve plate, wherein the detachable connection between the limit damping noise reduction sleeve and the limiter includes but is not limited to sleeve connection, clamping connection, and bolt connection, and the limit damping noise reduction sleeve and the limiter can also be integrally formed to improve the stability of the connection, and a gap is arranged between the limit damping noise reduction sleeve and the exhaust port to ensure the normal working state of the exhaust valve plate.

[0008] Preferably, the limiter includes a limit fixed end, the limit fixed end is connected to the valve plate, the limit fixed end is connected to a bending end, a gap is left between the bending end and the valve plate, and the limit damping noise reduction sleeve is connected to the bending end. The limiter is provided with a limit fixed end and a bending end, the limit fixed end and the bending end can be integrally formed or connected by a connecting piece, wherein the limit fixed end is fixedly connected to the valve plate, including but not limited to bolt connection, wherein a gap is left between the bending end and the valve plate to ensure the connection gap between the limit damping noise reduction sleeve and the working space of the exhaust valve plate.

[0009] Preferably, the valve plate includes an exhaust ring groove arranged on the peripheral side of the exhaust port, and the damping noise reduction component includes a noise reduction ring ring engaged with the exhaust ring groove. An exhaust ring groove is arranged on the valve plate around the exhaust port, and a noise reduction ring ring is arranged on the exhaust ring groove. The noise reduction ring ring is similar to a sealing ring structure. Since its material has certain compressibility and elasticity, it can buffer the impact force generated by the exhaust valve plate during the operation process, thereby reducing the noise generated during operation.

[0010] Preferably, the noise reduction annular ring protrudes from the valve plate surface toward the exhaust valve plate side. The noise reduction annular ring is arranged in the exhaust ring groove, and the upper surface of the noise reduction annular ring is higher than the surface of the valve plate, that is, the noise reduction annular ring protrudes toward the exhaust valve plate side, thereby ensuring that the exhaust valve plate can come into contact with the noise reduction annular ring during the falling process, thereby playing a role of noise reduction buffer.

[0011] Preferably, the exhaust valve sheet includes a covering portion arranged opposite to the exhaust port, the exhaust valve sheet includes a connecting portion connected to the covering portion, an exhaust groove is arranged on the valve plate opposite to the connecting portion, and the width of the exhaust groove is greater than the width of the connecting portion. The exhaust valve sheet is provided with a covering portion arranged opposite to the exhaust port, and the covering portion can completely cover the exhaust port after falling to ensure sealing, and the connecting portion is connected to the covering portion, and an exhaust groove is also arranged on the valve plate, and the exhaust groove is arranged below the connecting portion. When the exhaust valve sheet falls, the connecting portion fits with the exhaust groove, and the width of the exhaust groove is greater than the width of the connecting portion, so that after the exhaust valve sheet and the valve plate fit together, the connecting portion cannot completely cover the exhaust groove, so that the air between the connecting portion and the exhaust groove can be quickly discharged from both ends of the exhaust groove in the width direction, thereby realizing the rapid falling process of the exhaust valve sheet and ensuring the tightness of the fitting between the covering portion and the exhaust port.

[0012] Preferably, the exhaust groove includes a plurality of spacer single grooves, and a support surface is provided between each of the spacer single grooves. The exhaust groove includes a plurality of spacer single grooves, wherein the spacer single grooves include but are not limited to long strip groove structures, each of the spacer single grooves is arranged in a spaced relationship, and a support surface is provided between adjacent spacer single grooves, wherein the support surface is flush with the plane of the valve plate, and since a plurality of spacer single groove structures are provided, the close fit and adsorption between the exhaust valve sheet and the valve plate can be ensured, thereby improving the tightness of the connection between the covering portion and the exhaust port.

[0013] Preferably, the valve plate is provided with an air intake port, the side of the valve plate away from the limiter is connected with an air intake valve plate, the air intake valve plate is provided with an air intake inner plate, and the air intake inner plate covers the air intake port. The valve plate is provided with an air intake port, and the air intake valve plate is provided on the side away from the limiter, thereby reducing the difficulty of installation and avoiding installation interference between various components. The air intake valve plate is provided with an air intake inner plate, and the air intake inner plate can be moved relative to the air intake valve plate, thereby realizing the opening and closing effects of the air intake port.

[0014] Preferably, the air inlet is provided with an air inlet ring groove around the air inlet, wherein the air inlet ring groove can increase the fitting effect of the air inlet inner sheet during the falling back process and increase the tightness of the connection with the air inlet.

[0015] Preferably, the air intake inner plate is a reed-shaped structure, which can facilitate the deformation of the air intake inner plate and ensure the flexibility of the air intake inner plate.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) It can reduce the noise generated by the exhaust valve during operation and reduce the impact effect of the exhaust valve, thereby increasing the service life of the equipment;

[0018] (2) It can ensure the adhesion and adsorption effect between the exhaust valve plate and the exhaust port, and can accelerate the falling speed of the exhaust valve plate and improve the response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the first exploded view of the present invention.

[0020] Figure 2 This is the second exploded view of the present invention.

[0021] Figure 3 This is the third exploded view of the present invention.

[0022] Figure 4 This is an exploded view of Example 2.

[0023] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0024] Figure 6 This is an axonometric view of Example 2.

[0025] In the figure:

[0026] 1 valve plate, 11 exhaust groove, 12 spacing single body groove, 13 support surface;

[0027] 2 exhaust ports, 21 exhaust ring grooves;

[0028] 3 air intake port, 31 air intake ring groove;

[0029] 4 limiter, 41 limit fixing end, 42 bending end;

[0030] 5 exhaust valve plate, 51 covering portion, 52 connecting portion;

[0031] 6 damping noise reduction component, 61 limit damping noise reduction sleeve, 62 noise reduction annular ring;

[0032] 7 suction valve plate, 71 suction inner plate;

[0033] 8 crankcase, 81 valve plate gasket;

[0034] 9 compressor cylinder head, 91 cylinder head screws, 92 cylinder head gasket. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] Embodiment 1:

[0037] like Figure 1 , 2 As shown, a refrigeration compressor noise reduction valve group structure includes a valve plate 1, an exhaust port 2 is arranged on the valve plate 1, a limiter 4 covering the exhaust port 2 is connected to the valve plate 1, an exhaust valve plate 5 is arranged between the limiter 4 and the valve plate 1, a damping noise reduction component 6 is arranged on the valve plate 1 and the side of the limiter 4 close to the exhaust valve plate 5, the damping noise reduction component 6 includes a limiting damping noise reduction sleeve 61 detachably connected to the limiter 4, a gap is left between the limiting damping noise reduction sleeve 61 and the exhaust port 2, the valve plate 1 includes an exhaust ring groove 21 arranged on the peripheral side of the exhaust port 2, and the damping noise reduction component 6 includes a noise reduction annular ring 62 snap-fitted to the exhaust ring groove 21.

[0038] In the present application, the noise generated by the exhaust valve plate 5 during operation is reduced by providing damping noise reduction components 6 on both sides of the exhaust valve plate 5, wherein the structure in the present application is arranged between the compressor cylinder head 9 and the crankcase 8, the limiter 4 is arranged on the valve plate 1, and a gap is left between the limiter 4 and the valve plate 1, so that the exhaust valve plate 5 located between the limiter 4 and the valve plate 1 can be exhausted, and the movement stroke of the exhaust valve plate 5 is controlled to avoid excessive displacement of the exhaust valve plate 5, wherein damping noise reduction components 6 are provided on the exhaust port 2 and the limiter 4, and the damping noise reduction components 6 can reduce the noise generated by the exhaust valve plate 5 during the impact process and achieve a buffering effect at the same time, wherein the damping noise reduction components 6 arranged on the limiter 4 and the exhaust port 2 are both arranged near the exhaust valve plate 5. On the side, a limited position damping noise reduction sleeve 61 is arranged on the limiter 4 near the exhaust valve plate 5, wherein the detachable connection between the limited position damping noise reduction sleeve 61 and the limiter 4 includes but is not limited to sleeve connection, clamping connection, and bolt connection, and at the same time, the limited position damping noise reduction sleeve 61 and the limiter 4 can also be integrally formed to improve the stability of the connection, and a gap is arranged between the limited position damping noise reduction sleeve 61 and the exhaust port 2 to ensure the normal working state of the exhaust valve plate 5, and an exhaust ring groove 21 is arranged on the valve plate 1 around the exhaust port 2, and a noise reduction annular ring 62 is arranged on the exhaust ring groove 21. The noise reduction annular ring 62 is similar to a sealing ring structure, and because its material has certain compressibility and elasticity, it can buffer the impact force generated by the exhaust valve plate 5 during the action process, thereby reducing the noise generated during operation.

[0039] like Figure 2As shown, the limiter 4 includes a limited fixed end 41, the limited fixed end 41 is connected to the valve plate 1, the limited fixed end 41 is connected to a bent end 42, a gap is left between the bent end and the valve plate 1, and the limited damping noise reduction sleeve 61 is connected to the bent end. The limiter 4 is provided with a limited fixed end 41 and a bent end, the limited fixed end 41 and the bent end 42 can be integrally formed or connected by a connector, wherein the limited fixed end 41 is fixedly connected to the valve plate 1, including but not limited to bolt connection, wherein a gap is left between the bent end and the valve plate 1 to ensure the connection gap between the limited damping noise reduction sleeve 61 and the working space of the exhaust valve plate 5.

[0040] like Figure 2 As shown, the noise reduction annular ring 62 protrudes from the surface of the valve plate 1 toward the exhaust valve plate 5. The noise reduction annular ring 62 is arranged in the exhaust ring groove 21, and the upper surface of the noise reduction annular ring 62 is higher than the surface of the valve plate 1, that is, the noise reduction annular ring 62 protrudes toward the exhaust valve plate 5, thereby ensuring that the exhaust valve plate 5 can come into contact with the noise reduction annular ring 62 during the falling process, thereby playing a role of noise reduction buffer.

[0041] like Figure 2 , 3 As shown, an air intake port 3 is provided on the valve plate 1, and an air intake valve plate 7 is connected to the side of the valve plate 1 away from the limiter 4. An air intake inner plate 71 is provided on the air intake valve plate 7, and the air intake inner plate 71 covers the air intake port 3. An air intake ring groove 31 is provided around the air intake port 3, and the air intake inner plate 71 is a tongue-shaped structure.

[0042] An air intake port 3 is provided on the valve plate 1, and the air intake valve plate 7 is arranged on a side away from the limiter 4, thereby reducing the difficulty of installation and avoiding installation interference between the components. An air intake inner plate 71 is provided on the air intake valve plate 7, and the air intake inner plate 71 can be moved relative to the air intake valve plate 7 to achieve the opening and closing effect of the air intake port 3. An air intake ring groove 31 is provided around the air intake port 3, wherein the air intake ring groove 31 can increase the fitting effect of the air intake inner plate 71 during the falling back process, and increase the tightness of the connection with the air intake port 3. The tongue-shaped structure can facilitate the deformation of the air intake inner plate 71, thereby ensuring the flexibility of the air intake inner plate 71.

[0043] The assembly and working process of the noise reduction valve group structure of the refrigeration compressor in this embodiment are as follows: In this embodiment, it includes a crankcase 8 and a compressor cylinder rod, the crankshaft is connected to the compressor cylinder head 9 by a cylinder head screw 91, and the compressor cylinder head 9 is connected to a cylinder head gasket 92 on the side close to the crankcase 8, and a valve plate gasket 81 is also connected to the crankcase 8, wherein the noise reduction valve group structure in this application is arranged between the cylinder head gasket 92 and the valve plate gasket 81, the main body is a valve plate 1, the valve plate 1 is formed by steel, an exhaust port 2 and an air inlet are arranged on the valve plate 1, the exhaust port 2 is a circular structure, and the air inlet is a curved waist-shaped hole structure, a limiter 4 is connected to the side of the valve plate 1 close to the compressor cylinder head 9, the limiter 4 and the valve plate 1 are connected by rivets, the limiter 4 includes a limit fixed end 41 and a bending section, and there is an L between the limit fixed end 41 and the bending end. shaped angle, and the rivet is connected to the limit fixing end 41, wherein an exhaust valve plate 5 is arranged between the limiter 4 and the valve plate 1, wherein the shape of the exhaust valve plate 5 is similar to that of the limiter 4, and also presents an L-shaped structure, and a fiber damping noise reduction sleeve is arranged on the side of the limiter 4 close to the exhaust valve plate 5, which is connected to the bent end of the limiter 4 by means of a sleeve engagement, and a certain gap is left between the limit damping noise reduction sleeve 61 and the valve plate 1, so as to provide a deformation space, and an exhaust ring groove 21 is arranged in the circumferential direction of the exhaust port 2, wherein a noise reduction annular ring 62 is connected to the exhaust ring groove 21, wherein the noise reduction annular ring 62 protrudes from the upper surface of the valve plate 1, and an intake ring groove 31 is also arranged in the circumferential direction of the intake port 3, and during operation, the exhaust valve plate 5 impacts and abuts against the limit damping noise reduction sleeve 61 and the noise reduction annular ring 62 during the up and down movement, thereby effectively reducing the generated noise.

[0044] Embodiment 2:

[0045] like Figure 4 , 5 As shown in FIG. 6 , what is different from Example 1 is that in this embodiment, the exhaust valve plate 5 includes a covering portion 51 arranged opposite to the exhaust port 2, the exhaust valve plate 5 includes a connecting portion 52 connected to the covering portion 51, and an exhaust groove 11 is arranged on the valve plate 1 opposite to the connecting portion 52. The width of the exhaust groove 11 is greater than that of the connecting portion 52, and the exhaust groove 11 includes a plurality of spaced monomer grooves 12, and a supporting surface 13 is arranged between each of the spaced monomer grooves 12.

[0046] The exhaust valve sheet 5 is provided with a covering portion 51 facing the exhaust port 2. After the covering portion 51 falls, it can completely cover the exhaust port 2 to ensure sealing. The covering portion 51 is connected to the connecting portion 52. The valve plate 1 is also provided with an exhaust groove 11. The exhaust groove 11 is arranged below the connecting portion 52. When the exhaust valve sheet 5 falls, the connecting portion 52 fits with the exhaust groove 11, and the width of the exhaust groove 11 is greater than the width of the connecting portion 52. After the exhaust valve sheet 5 is fitted with the valve plate 1, the connecting portion 52 cannot completely cover the exhaust groove 11, so that the air between the connecting portion 52 and the exhaust groove 11 can be quickly discharged from both ends of the exhaust groove 11 in the width direction. Rapid discharge, thereby realizing the rapid falling process of the exhaust valve plate 5, ensuring the tightness of the fit between the covering portion 51 and the exhaust port 2, the exhaust groove 11 includes a plurality of spacer single grooves 12, wherein the spacer single grooves 12 include but are not limited to long strip-shaped groove structures, each spacer single groove 12 is arranged separately, and a supporting surface 13 is provided between adjacent spacer single grooves 12, wherein the supporting surface 13 is flush with the plane of the valve plate 1. Since a plurality of spacer single grooves 12 structures are provided, the close fit and adsorption between the exhaust valve plate 5 and the valve plate 1 can be ensured, thereby improving the tightness of the connection between the covering portion 51 and the exhaust port 2.

[0047] In addition to the above-mentioned distinguishing technical features, this embodiment also includes the following technical features that are the same as those in Embodiment 1: a valve plate 1 is provided with an exhaust port 2, a limiter 4 covering the exhaust port 2 is connected to the valve plate 1, an exhaust valve sheet 5 is provided between the limiter 4 and the valve plate 1, a damping noise reduction component 6 is provided on the valve plate 1 and the side of the limiter 4 close to the exhaust valve sheet 5, the damping noise reduction component 6 includes a limit damping noise reduction sleeve 61 detachably connected to the limiter 4, a gap is left between the limit damping noise reduction sleeve 61 and the exhaust port 2, the valve plate 1 includes an exhaust ring groove 21 arranged on the peripheral side of the exhaust port 2, and the damping noise reduction component 6 includes a noise reduction annular ring 62 snap-fitted to the exhaust ring groove 21. The limiter 4 includes a limit fixed end 41, which is connected to the valve plate 1, and a bent end 42 is connected to the limit fixed end 41, a gap is left between the bent end and the valve plate 1, and a limit damping noise reduction sleeve 61 is connected to the bent end. The noise reduction annular ring 62 protrudes from the surface of the valve plate 1 toward the exhaust valve plate 5. The valve plate 1 is provided with an air intake port 3, and an air intake valve plate 7 is connected to the side of the valve plate 1 away from the limiter 4. The air intake inner plate 71 is provided on the air intake valve plate 7, and the air intake inner plate 71 covers the air intake port 3. An air intake ring groove 31 is provided around the air intake port 3, and the air intake inner plate 71 is a tongue-shaped structure.

[0048] Thereby, the following effects can be achieved in this embodiment: damping noise reduction components 6 are provided on both sides of the exhaust valve plate 5 to reduce the noise generated by the exhaust valve plate 5 during operation, wherein the structure in the present application is arranged between the compressor cylinder head 9 and the crankcase 8, the limiter 4 is arranged on the valve plate 1, and a gap is left between the limiter 4 and the valve plate 1, so that the exhaust valve plate 5 located between the limiter 4 and the valve plate 1 can perform exhaust movement, and the movement stroke of the exhaust valve plate 5 is controlled to avoid excessive displacement of the exhaust valve plate 5, wherein damping noise reduction components 6 are provided on the exhaust port 2 and the limiter 4, and the damping noise reduction components 6 can reduce the noise generated by the exhaust valve plate 5 during the impact process and achieve a buffering effect at the same time, wherein the damping noise reduction components 6 arranged on the limiter 4 and the exhaust port 2 are both arranged near the exhaust On one side of the air valve plate 5, a limited position damping noise reduction sleeve 61 is arranged on the limiter 4 near the exhaust valve plate 5, wherein the detachable connection between the limited position damping noise reduction sleeve 61 and the limiter 4 includes but is not limited to sleeve connection, clamping connection, and bolt connection, and at the same time, the limited position damping noise reduction sleeve 61 and the limiter 4 can also be integrally formed to improve the stability of the connection, and a gap is arranged between the limited position damping noise reduction sleeve 61 and the exhaust port 2 to ensure the normal working state of the exhaust valve plate 5, and an exhaust ring groove 21 is arranged on the valve plate 1 around the exhaust port 2, and a noise reduction annular ring 62 is arranged on the exhaust ring groove 21. The noise reduction annular ring 62 is similar to a sealing ring structure. Since its material has certain compressibility and elasticity, it can buffer the impact force generated by the exhaust valve plate 5 during the action process, thereby reducing the noise generated during operation.

[0049] This embodiment can reduce the noise generated by the exhaust valve plate 5 during operation, reduce the impact effect of the exhaust valve plate 5, thereby increasing the service life of the equipment, while also ensuring the adhesion and adsorption effect between the exhaust valve plate 5 and the exhaust port 2, and can accelerate the falling speed of the exhaust valve plate 5 and improve the response speed.

Claims

1. A refrigeration compressor noise reduction valve group structure, characterized in that: It includes a valve plate, which is provided with an exhaust port, a limiter covering the exhaust port is connected to the valve plate, an exhaust valve sheet is provided between the limiter and the valve plate, and damping noise reduction components are provided on the valve plate and the side of the limiter close to the exhaust valve sheet.

2. According to the refrigeration compressor noise reduction valve group structure described in claim 1, it is characterized in that: The damping noise reduction component includes a position-limiting damping noise reduction sleeve detachably connected to the position limiter, and a gap is left between the position-limiting damping noise reduction sleeve and the exhaust port.

3. According to the refrigeration compressor noise reduction valve group structure described in claim 2, it is characterized in that: The limiter includes a limit fixed end, the limit fixed end is connected to the valve plate, a bent end is connected to the limit fixed end, a gap is left between the bent end and the valve plate, and the limit damping noise reduction sleeve is connected to the bent end.

4. According to the refrigeration compressor noise reduction valve group structure described in claim 1, it is characterized in that: The valve plate includes an exhaust ring groove arranged on the peripheral side of the exhaust port, and the damping noise reduction component includes a noise reduction annular ring snap-fitted and connected to the exhaust ring groove.

5. A refrigeration compressor noise reduction valve group structure according to claim 4, characterized in that: The noise reduction annular ring protrudes from the valve plate surface toward one side of the exhaust valve plate.

6. A refrigeration compressor noise reduction valve group structure according to any one of claims 1 to 5, characterized in that: The exhaust valve sheet includes a covering portion arranged opposite to the exhaust port, the exhaust valve sheet includes a connecting portion connected to the covering portion, an exhaust groove is arranged on the valve plate opposite to the connecting portion, and the width of the exhaust groove is greater than the width of the connecting portion.

7. A refrigeration compressor noise reduction valve group structure according to claim 6, characterized in that: The exhaust groove includes a plurality of spaced-apart single grooves, and a supporting surface is arranged between each of the spaced-apart single grooves.

8. A refrigeration compressor noise reduction valve group structure according to any one of claims 1 to 5, characterized in that: The valve plate is provided with an air intake port, a side of the valve plate away from the limiter is connected with an air intake valve sheet, an air intake inner sheet is provided on the air intake valve sheet, and the air intake inner sheet covers the air intake port.

9. A refrigeration compressor noise reduction valve group structure according to claim 8, characterized in that: An air suction ring groove is arranged around the air suction port.

10. A refrigeration compressor noise reduction valve group structure according to claim 8, characterized in that: The air suction inner sheet is a tongue-reed structure.

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