End cover vibration reduction assembly, compressor and air conditioner

Abstract

The present disclosure provides an end cover vibration damping assembly, a compressor and an air conditioner, wherein the end cover vibration damping assembly comprises: an end cover and an end cover vibration damper, wherein the end cover vibration damper comprises a volume cavity and a damping component opened inside the end cover, wherein the damping component is arranged in the volume cavity and can collide and / or rub with the inner wall of the volume cavity; the end cover vibration damper also comprises a partition, wherein the partition is arranged in the volume cavity to divide the volume cavity into cavities with smaller volumes, and each of the cavities is provided with at least one damping component. According to the present disclosure, the vibration energy generated by the compressor through the shell during operation can be converted into friction energy and absorbed by the expansion and / or friction between the damping component inside the end cover and the volume cavity, thereby effectively reducing the vibration of the compressor; collisions or movements of different sizes and directions can be generated through a plurality of vibration damping units, thereby improving the vibration damping effect on the compressor.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and in particular to an end cover vibration reduction assembly, a compressor and an air conditioner. Background Art

[0002] The noise reduction structure of the air-conditioning compressor in the prior art includes a method of setting a support seat in the center of the compressor base plate and three support plates on the periphery to achieve vibration absorption and vibration reduction, but this structure is only applicable to integrated compressors and is not applicable to compressors with detachable rear covers and base plates. At the same time, if the three support rods are too high, the compressor will shake violently and aggravate the vibration of the compressor. The vehicle-mounted compressor is subject to installation space limitations, and this structure is too large and is also not applicable.

[0003] The compressor and its vibration reduction structure in the prior art also include providing an elastic vibration reduction pad between the outer periphery of the fixed scroll of the scroll compressor and the shell, thereby reducing the vibration transmission of the fixed scroll to the shell by isolating the transmission path, but this solution does not solve the problem of compressor bracket and internal vibration.

[0004] Since the compressor in the prior art has vibrations during operation and the existing vibration reduction structure has poor vibration reduction effect, the present invention studies and designs an end cover vibration reduction assembly, a compressor and an air conditioner.

[0005] Public Content

[0006] Therefore, the technical problem to be solved by the present disclosure is to overcome the defects of vibration in the compressor during operation in the prior art and poor vibration reduction effect of the existing vibration reduction structure, thereby providing an end cover vibration reduction assembly, a compressor and an air conditioner.

[0007] In order to solve the above problems, the present disclosure provides an end cover vibration reduction assembly, which includes:

[0008] An end cover and an end cover damper, wherein the end cover damper comprises a volume cavity opened inside the end cover and a damping component, wherein the damping component is arranged in the volume cavity and can collide and / or rub against the inner wall of the volume cavity; the end cover damper also comprises a partition, wherein the partition is arranged in the volume cavity to divide the volume cavity into cavities with smaller volumes, and each of the cavities is provided with at least one damping component.

[0009] In some embodiments, there are at least two damping components, and collision and / or friction can occur between the at least two damping components; and / or the damping component is a granular structure.

[0010] In some embodiments, the volume chamber is an annular structure.

[0011] In some embodiments, the volume of the cavity can be changed by changing the number and / or position of the partitions.

[0012] In some embodiments, the partition is a plate-like structure; and / or, there are at least two partitions, which are arranged at intervals along the circumferential direction of the volume cavity.

[0013] In some embodiments, the end cover includes a radial outer wall and a radial inner wall, the volume cavity is formed between the radial outer wall and the radial inner wall, and one end of the partition is connected to the radial inner wall and the other end is connected to the radial outer wall.

[0014] In some embodiments, the end cover includes a partition support seat, the partition support seat is located at the central axis of the end cover, and the radial outer periphery of the partition support seat is formed as the radial inner wall.

[0015] In some embodiments, a first baffle supporting groove is provided on the radial inner wall, and one end of the partition portion can be inserted into the first baffle supporting groove; and / or,

[0016] A second partition support groove is provided on the radial outer wall, and the other end of the partition portion can be inserted into the second partition support groove.

[0017] In some embodiments, the number of the partitions is n, and n satisfies 2<n<6; and / or the thickness of the partitions in the circumferential direction of the volume cavity is a, and a satisfies 1mm<a<3mm.

[0018] In some embodiments, the end cover mass M and the end cover damper mass m satisfy:

[0019] Its value satisfies 0.10<μ<0.12;

[0020] The natural frequency ω of the end cap M The natural frequency ω of the end cover vibration damper m satisfy:

[0021]

[0022] The mass m and stiffness k of the end cover shock absorber m The damping component can be adjusted by at least one of the material, particle size, shape and filling rate of the damping component, and the vibration reduction frequency can be adjusted by changing at least one parameter;

[0023]

[0024] The damping ratio ζ of the rear end cover and the shock absorber meets the following requirements:

[0025] The value satisfies 0.16<ζ<0.18, where c M is the equivalent damping of the end cover, c m is the equivalent damping of the end cover shock absorber.

[0026] In some embodiments, the end cover and the end cover damper satisfy:

[0027] H>h;

[0028] D>d;

[0029] h>s;

[0030] Wherein H is the height of the end cover in the axial direction of the end cover;

[0031] h is the depth of the volume cavity in the axial direction of the end cover;

[0032] s is the height of the partition in the axial direction of the end cover;

[0033] D is the inner diameter of the radial outer wall of the end cover;

[0034] d is the outer diameter of the end cover damper.

[0035] In some embodiments, the rear end cover is provided with a mounting hole, and the end cover vibration reduction assembly further comprises a threaded fastener, which can be inserted into the mounting hole to fix the end cover to the housing of the compressor; and the threaded fastener and the mounting hole satisfy: R>r;

[0036] Wherein R is the radius of the mounting hole; r is the radius of the threaded fastener.

[0037] In some embodiments, the end cover vibration reduction assembly further includes an end cover cover plate, which is fixedly connected to the end cover, and the volume cavity is sealed by the end cover cover plate.

[0038] In some embodiments, a protruding structure is further provided on the partition; and / or, there are at least two partitions, which are evenly distributed at equal angles along the circumferential direction of the volume cavity.

[0039] The present disclosure further provides a compressor, comprising the end cover vibration damping assembly as described in any of the preceding items, and further comprising a shell, the end cover being fixedly connected to the shell.

[0040] The present disclosure also provides an air conditioner, which includes the air conditioner outdoor unit described in any of the preceding items.

[0041] The end cover vibration reduction assembly, compressor and air conditioner provided by the present disclosure have the following beneficial effects:

[0042] 1. The present invention provides a volume cavity inside the end cover and arranges a damping component in the volume cavity, so that the vibration energy generated by the compressor through the shell during operation can be converted into friction energy and absorbed by the expansion and / or friction between the damping component inside the end cover and the volume cavity, thereby effectively reducing the vibration of the compressor (especially the vibration transmitted through the shell) and reducing noise; the vibration reduction structure of the present invention is located inside the compressor, which effectively solves the problem of poor shaking and vibration reduction effect caused by the existing support structure arranged outside the compressor, and does not cause excessive volume due to the addition of external structure; and the vibration reduction structure of the present invention can solve the vibration transmitted to the shell by structures other than the stator (such as structures such as brackets), and can effectively improve the vibration reduction capacity compared with the prior art; and the present invention also divides the volume cavity into smaller cavities by a partition arranged in the volume cavity, and vibration reduction can be formed in each small cavity, thereby forming a plurality of vibration reduction units with different vibration frequencies, and collisions or movements of different sizes and directions can be generated by the plurality of vibration reduction units, which can further improve the vibration reduction effect and vibration reduction capacity of the compressor;

[0043] 2. The present disclosure also provides at least two damping components (preferably damping particles) that can form collision and friction between the damping components, which together with the expansion and friction generated by the inner wall of the volume chamber, can quickly consume the kinetic energy of the damping particles, further consume and absorb the vibration energy of the compressor, enhance the ability to reduce the vibration of the entire machine, and improve the noise of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a longitudinal cross-sectional view of an end cover vibration reduction assembly of a compressor disclosed herein and the compressor;

[0045] Figure 2a is a longitudinal cross-sectional view of the end cap vibration reduction assembly of the present disclosure;

[0046] Figure 2b yes Figure 2a A schematic diagram of the structure in the A direction;

[0047] Figure 3a It is a design model diagram of the end cover vibration reduction assembly (collision between particles and volume cavity) disclosed in the present invention;

[0048] Figure 3b is a design model diagram of the end cover vibration reduction assembly (particle-particle collision) disclosed in the present invention;

[0049] Figure 4a is a collision model diagram of the end cover vibration reduction assembly (curved volume cavity) disclosed in the present invention;

[0050] Figure 4b is a collision model diagram of the end cover vibration reduction assembly (planar volume cavity) of the present disclosure;

[0051] Figure 5a is an alternative embodiment along Figure 2a A schematic diagram of the structure in the A direction;

[0052] Figure 5b yes Figure 5a A partial enlarged view of part B.

[0053] The reference numerals are:

[0054] 1. Front end cover; 2. Stationary scroll; 3. Orbital scroll; 4. Bracket; 5. Crankshaft; 6. Casing; 7. End cover damper; 8. End cover; 81. Radial inner wall; 811. First partition support groove; 82. Radial outer wall; 821. Second partition support groove; 9. End cover cover plate; 61. Mounting hole; 71. Threaded fastener; 72. Damping component; 73. Partition support seat; 74. Partition; 75. Protruding structure; 76. Volume chamber. DETAILED DESCRIPTION

[0055] like Figure 1-5b As shown, the present disclosure provides an end cover vibration reduction assembly, which includes:

[0056] An end cover 8 and an end cover damper 7, wherein the end cover damper 7 comprises a volume chamber 76 and a damping component 72 opened inside the end cover 8, wherein the damping component 72 is arranged in the volume chamber 76 and can collide and / or rub against the inner wall of the volume chamber 76 during operation; the end cover damper 7 also comprises a partition 74, wherein the partition 74 is arranged in the volume chamber 76 to divide the volume chamber 76 into cavities with smaller volumes, and each of the cavities is provided with at least one damping component 72.

[0057] The present invention opens a volume cavity 76 inside the end cover and sets a damping component 72 in the volume cavity 76, so that the vibration energy generated by the compressor through the shell during operation can be converted into friction energy and consumed by the expansion and / or friction between the damping component 72 inside the end cover and the volume cavity 76, thereby effectively reducing the vibration of the compressor (especially the vibration transmitted through the shell) and reducing noise; the vibration reduction structure of the present application is located inside the compressor, which effectively solves the problem of shaking and poor vibration reduction effect caused by setting a supporting structure outside the compressor, and will not cause excessive volume due to the addition of external structure; and the vibration reduction structure of the present application can solve the vibration transmitted to the shell generated by structures other than the stator (such as brackets and other structures), and can effectively improve the vibration reduction ability compared with the prior art. The present disclosure can also divide the volume cavity into smaller cavities by setting a partition in the volume cavity, and vibration reduction can be formed in each small cavity, thereby forming a plurality of vibration reduction units with different vibration frequencies, which can achieve wide-band vibration reduction and thus improve the vibration reduction effect; through the plurality of vibration reduction units, collisions or movements of different sizes and directions can be generated, and ultimately the vibration reduction effect on the compressor can be further improved, thereby improving the vibration reduction capacity.

[0058] In some embodiments, there are at least two damping components 72, and collision and / or friction can occur between at least two damping components 72; and / or, the damping component 72 is a particle structure. The present disclosure also provides at least two damping components (preferably damping particles) that can form collisions and frictions between the damping components, and together with the expansion and friction generated by the inner wall of the volume chamber, quickly consume the kinetic energy of the damping particles, further consume and absorb the vibration energy of the compressor, enhance the ability to reduce the vibration of the whole machine, and improve the noise of the whole machine. The present disclosure can increase the surface contact area through the particle structure, thereby more effectively converting the energy of vibration into friction energy or collision energy, and absorbing the energy.

[0059] In some embodiments, the volume of the cavity can be changed by changing the number and / or position of the partitions 74. The change can be made before the compressor is assembled or during operation by disassembling (clamping) the partitions. The frequency of the end cover damper can be adjusted according to the operating natural frequency of different compressors to match them, so as to achieve the best vibration reduction effect on the compressor housing.

[0060] The present invention provides a rear cover damper and a compressor thereof. The damper is designed on the rear cover, a variable volume chamber (volume chamber) is designed through an adjustable partition (partition), and particle damping is filled in the chamber. The kinetic energy of the damping particles is consumed through collision and impact between the particle damping particles, and converted into elastic collision energy consumption and friction energy consumption, thereby consuming the vibration energy of the compressor and realizing the vibration reduction function; after the vibration of the compressor is reduced, the excitation of the mounting structure is reduced, thereby reducing the radiation noise and self-excited noise, and significantly improving the vibration and noise level of the entire compressor.

[0061] In some embodiments, the volume chamber 76 is an annular structure, preferably a circular ring. Combined with the shape characteristics of the rear end cover 8, the variable volume chamber 76 is designed as an annular structure, which can increase the collision friction between particles and between particles and the inner wall of the shock absorber, so as to improve the energy consumption efficiency of particle collision damping; Figure 4a-4b It can be seen that the number and probability of effective collisions of the circular structure are much greater than those of the planar container, and the more effective collisions there are, the more energy is consumed.

[0062] The end cover shock absorber 7 is designed with at least one variable volume cavity 76. In order to ensure the sealing effect of the shock absorber, the cavity of the end cover 8 is used as the end cover shock absorber 7. The opening of the end cover shock absorber 7 is connected to the shell 6 by the end cover cover plate 9 through the fastening screws (threaded fasteners 71) of the rear end cover; each variable volume cavity 76 is separated by an adjustable partition (i.e., the partition part 74), and the partition part 74 is limited by the partition support seat 73 and the first and second partition support grooves, and is axially fixed by the end cover cover plate 9.

[0063] The variable volume cavity 76 is filled with damping particles (damping component 72) of variable material, particle size and shape. When the vibration of the compressor is transmitted to the shell 6 and the front cover 1 and the end cover 8, it causes collision and impact between the damping particles. The kinetic energy of the damping particles is consumed through collision and friction, and converted into elastic collision energy and friction energy (the damping particles are preferably elastic structures, which absorb vibration energy through elastic energy), thereby consuming the vibration energy of the compressor and realizing the vibration reduction function. When the vibration of the compressor is reduced, the excitation of the mounting structure is reduced, thereby reducing the radiation noise and self-excited noise, thereby achieving the purpose of noise reduction.

[0064] In some embodiments, the partition 74 is a plate-like structure; and / or, there are at least two partitions 74, which are arranged at intervals along the circumferential direction of the volume chamber 76. This is a preferred structural form of the partition of the present disclosure. Multiple partitions can further increase the number of small cavities, and can form more vibration reduction units with different vibration frequencies. Through multiple vibration reduction units, collisions or movements of different sizes and directions can be generated, which can ultimately further improve the vibration reduction effect on the compressor and improve the vibration reduction capacity.

[0065] In some embodiments, in order to facilitate the control of vibration reduction frequency and installation, the partitions are distributed at equal angles along the circumference of the end cover.

[0066] As an alternative embodiment, as shown in FIG5 , in some embodiments, a protrusion structure 75 is further provided on the partition 74. The protrusion structures are designed on both end surfaces of the partition, which can effectively increase the collision efficiency between the damping particles and the partition. At the same time, in order to ensure the strength of the partition, the non-protrusion area accounts for 30% to 40% of the end surface area of ​​the partition.

[0067] In some embodiments, the end cover 8 includes a radial inner wall 81 and a radial outer wall 82, the volume cavity 76 is formed between the radial inner wall 81 and the radial outer wall 82, and one end of the partition 74 is connected to the radial inner wall 81, and the other end is connected to the radial outer wall 82. This is a preferred structural form of the end cover disclosed in the present invention, and the volume cavity can be effectively formed by the radial outer wall and the radial inner wall, and the two ends of the partition can be effectively fixed respectively.

[0068] In some embodiments, the end cover 8 includes a partition support seat 73, the partition support seat 73 is located at the central axis of the end cover 8, and the radial periphery of the partition support seat 73 is formed as the radial inner wall 81. The present disclosure can effectively support the radial inner end of the partition through the structure of the partition support seat.

[0069] In some embodiments, a first baffle supporting groove 811 is provided on the radial inner wall 81, and one end of the partition 74 can be inserted into the first baffle supporting groove 811; and / or,

[0070] The radial outer wall 82 is provided with a second partition support groove 821 , so that the other end of the partition portion 74 can be inserted into the second partition support groove 821 .

[0071] The present invention can effectively fix the radial inner side of the partition (partition) through the first partition support groove on the radial inner wall to form a plug-in fit, and can effectively fix the radial outer side of the partition (partition) through the second partition support groove on the radial outer wall to form a plug-in fit.

[0072] In some embodiments, the number of the partitions 74 is n, and n satisfies 2<n<6; and / or, the thickness of the partition 74 in the circumferential direction of the volume cavity 76 is a, and a satisfies 1mm<a<3mm. The end cover damper 7 disclosed herein adopts a variable volume cavity 76 design. When the particle material is constant, the chamber volume can be adjusted by changing the number n of adjustable partitions (partitions 74) to achieve rapid adjustment of the damper frequency. The value of n should satisfy 2<n<6; the thickness a of the adjustable plate should satisfy 1mm<a<3mm.

[0073] In some embodiments, the mass M of the end cover 8 and the mass m of the end cover damper 7 satisfy:

[0074] Its value satisfies 0.10<μ<0.12;

[0075] The natural frequency ω of the end cap 8 M and the natural frequency ω of the end cover damper 7 m satisfy:

[0076]

[0077] The mass m and stiffness k of the end cover damper 7 m The damping frequency can be adjusted by adjusting at least one of the material, particle size, shape and filling rate of the damping component, and by changing at least one parameter;

[0078]

[0079] The damping ratio ζ of the rear end cover and the shock absorber meets the following requirements:

[0080] The value satisfies 0.16<ζ<0.18, where c M is the equivalent damping of the end cover, c m is the equivalent damping of the end cover shock absorber.

[0081] The present disclosure adopts the above unique design to set the ratio μ between the mass M of the end cover 8 and the mass m of the end cover damper 7 within the range of 0.10<μ<0.12 to ensure that the mass requirement is met, and the damping ratio ζ is set to meet 0.16<ζ<0.18 to ensure that the damping ratio requirement is met, and the natural frequency ω of the end cover 8 is M and the natural frequency ω of the end cover damper 7 m Satisfaction relationship The end cover and the end cover vibration damper can simultaneously meet the requirements of mass relationship, damping ratio relationship and frequency relationship, and finally achieve the effect of optimizing the vibration reduction of the shell and the end cover and realizing the effect of optimal tuning.

[0082] like Figure 3a-3b Wherein M: rear end cover mass

[0083] m: mass of particle A

[0084] n: mass of particle B

[0085] k1: Spring stiffness (particle collides with container)

[0086] k2: Spring stiffness (particle-particle collision)

[0087] c1: equivalent damping (collision between particles and container)

[0088] c2: equivalent damping (particle-particle collision)

[0089] In some embodiments, the end cover 8 and the end cover damper 7 satisfy the following conditions:

[0090] H>h;

[0091] D>d;

[0092] h>s;

[0093] Wherein H is the height of the end cover 8 in the axial direction of the end cover;

[0094] h is the depth of the volume cavity 76 in the axial direction of the end cover;

[0095] s is the height of the partition 74 in the axial direction of the end cover;

[0096] D is the inner diameter of the radial outer wall of the end cover 8;

[0097] d is the outer diameter of the volume cavity 76 .

[0098] The present disclosure ensures that H>h can ensure that the volume cavity is within the axial dimension of the end cover and the internal damping component does not leak, D>d can ensure that the outer diameter of the volume cavity is smaller than the inner diameter of the radial outer wall of the end cover, effectively ensuring that the volume cavity is within the radial dimension of the end cover, h>s can ensure that the partition is completely assembled into the volume cavity, so that it can effectively separate the damping component in the volume cavity and cause collision and friction between the damping component and the partition; and the selection of the above dimensions can effectively ensure that the end cover damper 7 does not interfere with the end cover 8 and the shell 6 during installation and vibration reduction.

[0099] In some embodiments, the rear end cover is provided with a mounting hole 61, and the end cover vibration reduction assembly further includes a threaded fastener 71, and the threaded fastener 71 can be inserted into the mounting hole 61 to fix the end cover 8 to the housing of the compressor; and the threaded fastener 71 and the mounting hole 61 satisfy: R>r;

[0100] Wherein R is the radius of the mounting hole 61 ; r is the radius of the threaded fastener 71 .

[0101] The present disclosure sets the above-mentioned size range R>r, thereby ensuring that the threaded fastener can be inserted into the mounting hole, achieving effective thread matching, and fixing the end cover on the housing.

[0102] In some embodiments, the end cover vibration damping assembly further includes an end cover cover plate 9, which is fixedly connected to the end cover 8, and the volume cavity 76 is sealed by the end cover cover plate 9. The present disclosure also provides an end cover cover plate, which can be fixedly connected to the end cover and can also effectively seal the volume cavity to prevent leakage of damping particles.

[0103] The present disclosure further provides a compressor, which includes the end cover vibration damping assembly as described in any of the preceding items, and also includes a shell 6 , and the end cover 8 is fixedly connected to the shell 6 .

[0104] The present invention discloses a rear cover damper and a compressor thereof, comprising a front cover 1, a fixed scroll 2, a movable scroll 3, a bracket 4, a crankshaft 5, a shell 6, an end cover 8 and other structures. The movable scroll 3 is supported on the bracket 4, and the movable scroll 3 moves in a circular motion under the drive of the compressor main shaft. During the motion, the movable scroll 3 meshes with the fixed scroll 2 and forms a plurality of closed compression chambers of different sizes with constantly changing volumes. During the compression process, the front cover 1, the shell 6 and the end cover 8 (i.e., the rear cover) are overturned and rubbed due to gas force, rotational inertia force, etc., causing vibration of the front cover 1, the shell 6 and the end cover 8 (i.e., the rear cover). The end cover 8 is designed with an end cover damper 7, and the end cover damper 7 is covered with an end cover cover plate 9, which is connected to the shell 6 through a fastening screw (i.e., a threaded fastener 71) in the mounting hole 61 of the rear cover.

[0105] The present disclosure also provides an air conditioner, which includes the aforementioned compressor.

[0106] The above is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure. The above is only a preferred implementation of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present disclosure, and these improvements and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. An end cover vibration reduction assembly, characterized in that: include: An end cover (8) and an end cover damper (7), wherein the end cover damper (7) comprises a volume chamber (76) opened inside the end cover (8) and a damping component (72), wherein the damping component (72) is arranged in the volume chamber (76) and can collide and / or rub against an inner wall of the volume chamber (76); The end cover damper (7) further comprises a partition (74), wherein the partition (74) is arranged in the volume cavity (76) to divide the volume cavity (76) into cavities with smaller volumes, and at least one damping component (72) is arranged in each of the cavities; The end cover (8) comprises a radial inner wall (81) and a radial outer wall (82), the volume cavity (76) is formed between the radial inner wall (81) and the radial outer wall (82), and one end of the partition (74) is connected to the radial inner wall (81) and the other end is connected to the radial outer wall (82); The end cover (8) comprises a partition support seat (73), the partition support seat (73) is located at the central axis of the end cover (8), and the radial outer periphery of the partition support seat (73) is formed as the radial inner wall (81); The radial inner wall (81) is provided with a first partition support groove (811), so that one end of the partition portion (74) can be inserted into the first partition support groove (811); and / or, A second partition support groove (821) is provided on the radial outer wall (82), so that the other end of the partition portion (74) can be inserted into the second partition support groove (821); The mass M of the end cover (8) and the mass m of the end cover damper (7) satisfy: Its value satisfies 0.10<μ<0.12; The natural frequency ω of the end cap (8) M and the natural frequency ω of the end cover damper (7) m satisfy: The mass m and stiffness k of the end cover vibration damper (7) m The damping frequency can be adjusted by adjusting at least one of the material, particle size, shape and filling rate of the damping component, and by changing at least one parameter; The damping ratio ζ of the rear end cover and the shock absorber meets the following requirements: The value satisfies 0.16<ζ<0.18, where c M is the equivalent damping of the end cover, c m is the equivalent damping of the end cover shock absorber.

2. The end cover vibration reduction assembly according to claim 1, characterized in that: There are at least two damping components (72), and collision and / or friction can occur between the at least two damping components (72); and / or the damping components (72) are of a granular structure.

3. The end cover vibration reduction assembly according to claim 1, characterized in that: The volume chamber (76) is an annular structure.

4. The end cover vibration reduction assembly according to claim 1, characterized in that: The volume of the cavity can be varied by changing the number and / or position of the partitions (74).

5. The end cover vibration reduction assembly according to claim 1, characterized in that: The partition (74) is a plate-shaped structure; and / or, there are at least two partitions (74) arranged at intervals along the circumferential direction of the volume chamber (76).

6. The end cover vibration reduction assembly according to claim 4, characterized in that: The number of the partitions (74) is n, and n satisfies 2<n<6; and / or the thickness of the partitions (74) in the circumferential direction of the volume cavity (76) is a, and a satisfies 1 mm<a<3 mm.

7. The end cover vibration reduction assembly according to claim 1, characterized in that: The conditions between the end cover (8) and the end cover damper (7) are as follows: H>h; D>d; h>s; Wherein H is the height of the end cover (8) in the axial direction of the end cover; h is the depth of the volume cavity (76) in the axial direction of the end cover; s is the height of the partition (74) in the axial direction of the end cover; D is the inner diameter of the radial outer wall of the end cover (8); d is the outer diameter of the volume chamber (76).

8. The end cover vibration reduction assembly according to claim 1, characterized in that: The end cover is provided with a mounting hole (61), and the end cover vibration reduction assembly further comprises a threaded fastener (71), wherein the threaded fastener (71) can be inserted into the mounting hole (61) to fix the end cover (8) to the housing of the compressor; and the threaded fastener (71) and the mounting hole (61) satisfy the following relationship: R>r; Wherein R is the radius of the mounting hole (61); r is the radius of the threaded fastener (71).

9. The end cover vibration reduction assembly according to any one of claims 1 to 8, characterized in that: The end cover vibration reduction assembly further comprises an end cover cover plate (9), the end cover cover plate (9) being fixedly connected to the end cover (8), and the volume cavity (76) is sealed by the end cover cover plate (9).

10. The end cover vibration reduction assembly according to claim 1, characterized in that: The partition (74) is also provided with a protruding structure (75); and / or, there are at least two partitions (74), which are evenly distributed at equal angles along the circumferential direction of the volume cavity (76).

11. A compressor, characterized in that: The end cover vibration damping assembly comprises the end cover according to any one of claims 1 to 10, further comprising a shell (6), the end cover (8) being fixedly connected to the shell (6).

12. An air conditioner, characterized in that: Comprising the compressor as claimed in claim 11.

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