Protective sheet for reducing noise of compressor pump body and pump assembly

Abstract

The utility model relates to the technical field of compressors, in particular to a protective piece for reducing noise of a pump body of a compressor and a pump assembly, the protective piece comprises a first fixed end, a first connecting end and a first movable end, the first connecting end is connected between the first fixed end and the first movable end, and the first movable end is connected between the first fixed end and the first movable end. A mounting part for mounting the protective sheet is formed on the first fixed end, and a counter bore is formed in the first movable end; compared with the prior art, the counter bore is formed in the first movable end of the protection piece, the contact area when the valve piece flaps the protection piece can be reduced, then noise is lowered, compared with a traditional through hole arrangement mode, the counter bore structure can form buffer airflow and lower the flapping speed when the valve piece makes contact with the protection piece, and therefore the effect of further lowering noise is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a protective sheet and a pump component for reducing the noise of a compressor pump body. Background Art

[0002] Usually, a compressor is composed of a pump assembly, a motor assembly, a housing assembly, a filter bottle and other components. The pump assembly at least includes an upper support assembly, a cylinder, a lower support assembly, a rolling piston, a crankshaft and blades. The operating principle of the pump is that the crankshaft rotates, driving the rolling piston to make eccentric motion in the cylinder, sucking in low-temperature and low-pressure refrigerant gas, compressing it into high-temperature and high-pressure gas, and then pushing open the valve plate that is close to the exhaust port of the upper or lower support of the pump, and then discharging it in a cycle.

[0003] In order to prevent the valve plate from rising too much due to the impact of high-pressure gas, which would affect the service life of the valve plate, a guard plate is fixed on the upper part of the valve plate on the support to limit the lift and protect the valve plate, thereby increasing the service life of the valve plate.

[0004] When the compressor is running, there will be a slapping sound when the valve plate opens and closes, and the slapping sound is the main noise source of the compressor. In order to alleviate the noise problem, the prior art adopts a method of setting a through hole on the guard plate to reduce the slapping area to achieve the purpose of noise reduction. However, due to the fast slapping speed of the valve plate and the guard plate, there is still a certain amount of noise, and the method of setting a through hole cannot further reduce the noise. Utility Model Content

[0005] In response to the noise problem caused by the slapping sound of the valve plate and the guard plate, the utility model provides a guard plate and a pump assembly for reducing the noise of the compressor pump body. By setting a countersunk hole on the first movable end of the guard plate, the contact area when the valve plate hits the guard plate can be reduced, thereby reducing the noise. In addition, a buffer airflow can be formed when the valve plate and the guard plate contact, reducing the slapping speed, thereby achieving the effect of further reducing the noise.

[0006] In order to solve the above technical problems, the specific solutions provided by the utility model are as follows:

[0007] A protective plate for reducing the noise of a compressor pump body, the protective plate comprising a first fixed end, a first connecting end and a first movable end, the first connecting end being connected between the first fixed end and the first movable end, a mounting portion for mounting the protective plate being formed on the first fixed end, and a countersunk hole being provided on the first movable end.

[0008] In some embodiments, the number of the countersunk hole is one, and the countersunk hole is a circular hole. The circular hole structure is convenient for processing the guard plate and can also achieve a good effect of reducing the beating speed.

[0009] In some embodiments, there are multiple countersunk holes, which are distributed in an array. When the valve plate contacts the guard plate, a relatively uniform buffer airflow can be achieved to achieve the effect of reducing the flapping speed.

[0010] In some embodiments, a recessed portion is formed at the edge of the first connecting end to reduce material usage while also achieving a connecting effect.

[0011] In some embodiments, the first fixed end is a straight structure, and the first movable end is an upwardly raised structure. The first movable end adopts an upwardly raised structure to limit the lift of the valve plate, protect the valve plate, and increase the service life of the valve plate.

[0012] The present application also provides a pump assembly, comprising a support, a valve plate and any of the above-mentioned protective plates;

[0013] The support comprises a shaft sleeve and a panel integrally formed in the outer circumferential direction of one end of the shaft sleeve, the panel is provided with a mounting groove on one end surface facing the shaft sleeve, and an exhaust port is provided in the mounting groove;

[0014] The valve sheet is located in the mounting groove, and the valve sheet covers the exhaust port;

[0015] The protective sheet is installed in the installation groove through the installation portion, and the protective sheet covers the valve sheet, thereby protecting the valve sheet and reducing noise.

[0016] In some embodiments, the mounting portion is a through-hole structure, and a locking member for locking with the mounting portion is disposed in the mounting groove to achieve a stable mounting effect on the guard plate.

[0017] In some embodiments, the valve plate includes a second fixed end, a second connecting end, and a second movable end, wherein the second connecting end is connected between the second fixed end and the second movable end;

[0018] The second fixed end is connected to the first fixed end, the second movable end covers the exhaust port, the first movable end is located above the second movable end, the second movable end floats up and down under the influence of the airflow at the exhaust port, and the first movable end is used to limit the upward lift of the second movable end to play a protective role.

[0019] In some embodiments, there is a gap between the first movable end and the second movable end to form a buffer airflow, thereby reducing the flapping speed and achieving the purpose of reducing noise.

[0020] In some embodiments, the panel is provided with mounting holes for alignment installation, which facilitates the alignment assembly of the pump assembly and improves assembly efficiency and assembly accuracy.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a guard plate and a pump assembly for reducing the noise of a compressor pump body. By setting a countersunk hole on the first movable end of the guard plate, the contact area when the valve plate hits the guard plate can be reduced, thereby reducing the noise. Moreover, compared with the traditional method of setting a through hole, the countersunk hole structure can form a buffer airflow when the valve plate contacts the guard plate, reduce the beating speed, and thus achieve the effect of further reducing the noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the guard plate provided in the first embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the guard plate provided in the second embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the pump assembly provided in the third embodiment of the present utility model;

[0025] Figure 4 A cross-sectional view of a pump assembly provided in Embodiment 3 of the present utility model;

[0026] Figure 5 This is an assembly diagram of the guard plate and the valve plate provided in the third embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the valve plate provided in the third embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the support provided in the third embodiment of the present utility model;

[0029] 1-guard; 11-first fixed end; 12-first connecting end; 13-first movable end; 14-mounting portion; 15-counter hole; 16-recessed portion;

[0030] 2-support; 21-shaft sleeve; 22-panel; 23-mounting slot; 24-exhaust port; 25-mounting hole;

[0031] 3-valve plate; 31-second fixed end; 32-second connecting end; 33-second movable end; 4-locking member. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] For example, a protective plate for reducing the noise of a compressor pump body, the protective plate includes a first fixed end, a first connecting end and a first movable end, the first connecting end is connected between the first fixed end and the first movable end, a mounting portion for installing the protective plate is formed on the first fixed end, and a countersunk hole is provided on the first movable end.

[0035] The present embodiment provides a guard plate and a pump assembly for reducing the noise of a compressor pump body. By setting a countersunk hole on the first movable end of the guard plate, the contact area when the valve plate hits the guard plate can be reduced, thereby reducing the noise. Moreover, compared with the traditional method of setting a through hole, the countersunk hole structure can form a buffer airflow when the valve plate contacts the guard plate, reduce the beating speed, and thus achieve the effect of further reducing the noise.

[0036] Embodiment 1:

[0037] refer to Figure 1 This example provides a protective plate for reducing the noise of the compressor pump body. The protective plate 1 is used in the compressor to limit the lift and protect the valve plate. When the compressor is working, the gas lifts the valve plate under high temperature and high pressure and exhales through the exhaust port 24. In order to avoid excessive lifting of the valve plate, resulting in damage or reducing the service life, the protective plate 1 is set above the valve plate to limit the lift of the valve plate.

[0038] The guard plate 1 provided in this example includes a first fixed end 11, a first connecting end 12 and a first movable end 13. The first connecting end 12 is connected between the first fixed end 11 and the first movable end 13. For example, the first fixed end 11 and the first movable end 13 extend in opposite directions respectively. The first connecting end 12 is used to connect the first fixed end 11 and the first movable end 13.

[0039] A mounting portion 14 for mounting the guard plate 1 is formed on the first fixed end 11, and a countersunk hole 15 is provided on the first movable end 13. When the guard plate 1 is assembled to the pump assembly, it is mounted and fixed through the mounting portion 14. For example, the mounting portion 14 can be a through-hole structure for locking and mounting using a rivet or other structure, or a structure that can be clamped and mounted using a buckle or other structure. In this example, there is no specific limitation on the structure of the mounting portion 14, and it can be adjusted according to actual installation requirements.

[0040] A countersunk hole 15 is provided on the first movable end 13. It is known that the first fixed end 11 is used for fixed installation of the guard plate 1, so the first movable end 13 can float up and down when being hit by the valve plate. During assembly, the end face of the first movable end 13 with the countersunk hole 15 is facing the valve plate to reduce the hitting area between the valve plate and the guard plate 1, thereby achieving the purpose of reducing noise. Moreover, since the countersunk hole 15 is provided on the first movable end 13 instead of the through-hole structure in the prior art, a buffer airflow is formed when the valve plate contacts the guard plate 1 during the process of the valve plate hitting the guard plate 1. The buffer airflow can reduce the hitting speed of the valve plate, thereby achieving the effect of further reducing noise.

[0041] In one example, the number of the countersunk hole 15 is one, and the countersunk hole 15 is a circular hole. The circular hole structure is convenient for processing the guard plate 1, and can also achieve a better effect of reducing the flapping speed.

[0042] In specific applications, the position size of the circular countersunk hole 15 on the valve plate is larger than the size of the countersunk hole 15, that is, in a static state, the position of the countersunk hole 15 on the valve plate can completely cover the opening of the countersunk hole 15. Therefore, when the compressor is running, the airflow between the valve plate and the countersunk hole 15 will be blocked by the countersunk hole 15 during the process of the valve plate beating the guard plate 1, thereby forming a buffer airflow. The buffer airflow acts on the valve plate and reduces the beating speed of the valve plate. Compared with the traditional through-hole structure design, the countersunk hole 15 structure can further reduce the noise.

[0043] Of course, in this example, there is no specific restriction on the shape of the countersunk hole 15, and it can also be a square hole or an elliptical hole, etc., which can be adjusted according to actual needs.

[0044] Embodiment 2:

[0045] refer to Figure 2 In this example, there are multiple countersunk holes 15, which are distributed in an array. When the valve plate contacts the guard plate 1, a relatively uniform buffer airflow can be achieved to achieve the effect of reducing the flapping speed.

[0046] For example, the number of the countersunk holes 15 is 13, and the 13 countersunk holes 15 are arranged in five rows at the first movable end 13, and the countersunk holes 15 are square holes. In a static state, the positions of the corresponding countersunk holes 15 on the valve plate can completely cover the openings of the 13 countersunk holes 15. In this example, a plurality of square countersunk holes 15 are arranged in an array. During the process of the valve plate beating the guard plate 1, the airflow will be blocked by the plurality of countersunk holes 15, so that the buffer airflow formed between the valve plate and the guard plate 1 is relatively uniform, thereby achieving the effect of reducing the beating speed, thereby further reducing the noise during the operation of the compressor.

[0047] In some examples, a recessed portion 16 is formed at the edge of the first connecting end 12 . The provision of the recessed portion 16 can reduce material usage while also achieving a connection effect.

[0048] For example, the first connecting end 12 is located between the first movable end 13 and the first fixed end 11, and the edge of the first connecting end 12 is recessed inward on the same side relative to the first movable end 13 and the first fixed end 11, thereby maintaining the connection relationship between the first connecting end 12 and the first movable end 13 and the first fixed end 11, while also being able to achieve the purpose of reducing material usage and saving the manufacturing cost of the guard plate 1.

[0049] In some examples, the first fixed end 11 is a straight structure, and the first movable end 13 is an upwardly raised structure. The first fixed end 11 is a straight structure, which is convenient for installing the protective plate 1 through the mounting portion 14 on the first fixed end 11. The first movable end 13 adopts an upwardly raised structure, which is used to limit the lift of the valve plate, protect the valve plate, and increase the service life of the valve plate.

[0050] Embodiment three:

[0051] refer to Figure 3-Figure 7 The present application also provides a pump assembly, which includes a support 2, a valve plate 3 and a guard plate 1 in any of the above embodiments.

[0052] Among them, the support 2 includes a sleeve 21 and a panel 22 integrally formed in the outer circumferential direction of one end of the sleeve 21. The panel 22 is provided with a mounting groove 23 on one end surface facing the sleeve 21. An exhaust port 24 is provided in the mounting groove 23. The exhaust port 24 is used to discharge the pressure generated by the compressed refrigerant during the operation of the compressor.

[0053] The valve plate 3 is located in the mounting groove 23 , and the valve plate 3 covers the exhaust port 24 . The change of the exhaust volume of the exhaust port 24 can make the valve plate 3 float up and down.

[0054] The protective plate 1 is installed in the installation groove 23 through the installation portion 14, and the protective plate 1 covers the valve plate 3, thereby protecting the valve plate 3 and reducing noise.

[0055] When the valve plate 3 floats up and down due to the change in the exhaust volume of the exhaust port 24, it will have a flapping effect on the guard plate 1 located above it. During the flapping process, the airflow will be blocked by the countersunk hole 15 on the guard plate 1, so that a buffer airflow is formed between the valve plate 3 and the guard plate 1. The buffer airflow can reduce the flapping speed, so as to further reduce the operating noise of the compressor.

[0056] In some examples, the mounting portion 14 is a through hole structure, and a locking member 4 for cooperating and locking with the mounting portion 14 is provided in the mounting groove 23. For example, the locking member 4 is a rivet, and a through hole for the rivet to pass through is provided at a position corresponding to the mounting portion 14 in the mounting groove 23. The rivet is passed through the through hole to be locked and connected with the mounting portion 14, thereby achieving a stable installation effect of the guard plate 1.

[0057] In some examples, the valve plate 3 includes a second fixed end 31, a second connecting end 32 and a second movable end 33, and the second connecting end 32 is connected between the second fixed end 31 and the second movable end 33. It can be understood that the protective plate 1 covers the valve plate 3, the first fixed end 11 on the protective plate 1 is correspondingly located above the second fixed end 31 on the valve plate 3, the first connecting end 12 on the protective plate 1 is correspondingly located above the second connecting end 32 on the valve plate 3, and the first movable end 13 on the protective plate 1 is correspondingly located above the second movable end 33 on the valve plate 3.

[0058] The second fixed end 31 is connected to the first fixed end 11 to stably install the valve plate 3. The second movable end 33 covers the exhaust port 24. The second movable end 33 can float up and down due to changes in the exhaust volume of the exhaust port 24. The first movable end 13 is located above the second movable end 33. When the second movable end 33 floats up and down due to the influence of the airflow of the exhaust port 24, the second movable end 33 will hit the first movable end 13. The first movable end 13 is used to limit the upward lift of the second movable end 33 to play a protective role.

[0059] In some examples, there is a gap between the first movable end 13 and the second movable end 33. The setting of the gap can achieve the effect of forming a buffer airflow, and the buffer airflow is used to reduce the flapping speed, thereby achieving the purpose of reducing noise.

[0060] In some examples, mounting holes 25 for alignment installation are provided on the panel 22. For example, the pump assembly also includes a silencer cover, etc. The silencer cover is aligned with the mounting holes 25 on the panel 22 to improve the assembly efficiency and assembly accuracy of the pump assembly.

[0061] In summary, the utility model provides a guard plate and pump assembly for reducing the noise of a compressor pump body. By setting a countersunk hole on the first movable end of the guard plate, the contact area of ​​the valve plate 3 when it hits the guard plate can be reduced, thereby reducing the noise. Moreover, compared with the traditional method of setting a through hole, the countersunk hole structure can form a buffer airflow when the valve plate 3 contacts the guard plate, reduce the beating speed, and thus achieve the effect of further reducing the noise.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0064] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A guard plate for reducing the noise of a compressor pump body, characterized in that: The guard plate (1) comprises a first fixed end (11), a first connecting end (12) and a first movable end (13); the first connecting end (12) is connected between the first fixed end (11) and the first movable end (13); a mounting portion (14) for mounting the guard plate (1) is formed on the first fixed end (11); and a countersunk hole (15) is provided on the first movable end (13); The number of the countersunk holes (15) is multiple, and the multiple countersunk holes (15) are distributed in an array.

2. The protective sheet for reducing compressor pump noise according to claim 1, characterized in that: The number of the countersunk hole (15) is one, and the countersunk hole (15) is a circular hole.

3. The protective sheet for reducing compressor pump noise according to claim 1, characterized in that: A recessed portion (16) is formed at the edge of the first connecting end (12).

4. The protective sheet for reducing compressor pump noise according to claim 1, characterized in that: The first fixed end (11) is a straight structure, and the first movable end (13) is an upwardly raised structure.

5. A pump assembly, characterized in that: It comprises a support (2), a valve plate (3) and a guard plate (1) according to any one of claims 1 to 4; The support (2) comprises a shaft sleeve (21) and a panel (22) integrally formed in the outer circumferential direction of one end of the shaft sleeve (21); the panel (22) is provided with a mounting groove (23) on one end surface facing the shaft sleeve (21); and an exhaust port (24) is provided in the mounting groove (23); The valve plate (3) is located in the mounting groove (23), and the valve plate (3) covers the exhaust port (24); The protective sheet (1) is installed in the installation groove (23) through the installation portion (14), and the protective sheet (1) covers the valve sheet (3).

6. The pump assembly according to claim 5, characterized in that: The mounting portion (14) is a through-hole structure, and a locking member (4) for cooperating and locking with the mounting portion (14) is arranged in the mounting groove (23).

7. The pump assembly according to claim 5, characterized in that: The valve plate (3) comprises a second fixed end (31), a second connecting end (32) and a second movable end (33), wherein the second connecting end (32) is connected between the second fixed end (31) and the second movable end (33); The second fixed end (31) is connected to the first fixed end (11), the second movable end (33) covers the exhaust port (24), and the first movable end (13) is located above the second movable end (33).

8. The pump assembly according to claim 7, characterized in that: There is a gap between the first movable end (13) and the second movable end (33).

9. The pump assembly according to claim 5, characterized in that: The panel (22) is provided with mounting holes (25) for alignment mounting.

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