CN216044291U

CN216044291U - Compressor lower shell assembly and compressor

Info

Publication number: CN216044291U
Application number: CN202121651678.8U
Authority: CN
Inventors: 谢国强
Original assignee: Changshu Qiangsheng Punching Co ltd
Current assignee: Changshu Qiangsheng Punching Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-03-15
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a compressor lower shell assembly and a compressor, which comprise a compressor lower shell and a lower shell base, wherein the bottom of the compressor lower shell is provided with an arc convex surface, the top surface of the lower shell base is provided with an arc concave surface, the arc concave surface is provided with a plurality of elastic devices which are uniformly distributed along the circumferential direction, when the compressor lower shell and the lower shell base are assembled, the elastic devices are pressed tightly, and meanwhile, the compressor lower shell is stably contacted with the lower shell base. The utility model reduces the vibration amplitude of the lower shell in the running process of the compressor by designing the lower shell of the compressor with the arc convex surface, adapts to the lower shell of the compressor by designing the lower shell base with the arc concave surface, and simultaneously absorbs aftershock by being provided with the uniformly distributed elastic devices at the arc concave surface, thereby achieving the effects of shock absorption and noise reduction.

Description

Compressor lower shell assembly and compressor

Technical Field

The present disclosure relates to a compressor housing assembly, and more particularly, to a compressor lower housing assembly and a compressor.

Background

A compressor (compressor) is a driven fluid machine that raises low-pressure gas into high-pressure gas, and is a heart of a refrigeration system. The refrigeration cycle comprises a gas suction pipe, a motor, a piston, an exhaust pipe, a compression pipe, a condensation pipe, an expansion pipe, an evaporation pipe, a heat exchange pipe and a heat exchange pipe.

The compressor is generally composed of an upper casing assembly, a lower casing assembly and a compressor, and various kinds of noise are generated during the operation thereof, and the prior art reduces the noise by improving the casing assembly of the compressor, and some techniques improve the stability thereof by designing the upper and lower casing assemblies to be tapered or arc-shaped so that the vibration amplitudes of the upper and lower casings are reduced during the operation thereof, thereby reducing the noise of the compressor, and some techniques reduce the noise by designing a noise reduction structure at the upper casing assembly.

Can reduce the holistic noise of compressor to a certain extent through above technique, after compressor and casing whole assembly accomplish, need install refrigerating system with it in, at this moment, the compressor still has vibration and noise of a certain extent, can bring noise pollution for the environment promptly, also can harm the life of compressor.

Thus, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lower shell assembly of a compressor and the compressor, which are used for solving the problems.

The utility model adopts a technical scheme that: there is provided a compressor lower housing assembly, including: casing and lower casing base under the compressor, casing comprises casing upper segment and casing hypomere down under the compressor, the casing hypomere has the circular arc convex surface down, casing base comprises step and base under by the base, the base upper step have with the circular arc concave surface of circular arc convex surface looks adaptation, ensure both stationary contact, make the compressor settle stably the circular arc concave surface of base upper step is provided with a plurality of along circumferencial direction evenly distributed's resilient means, works as during casing and casing base assembly under the compressor, resilient means is compressed tightly, simultaneously, casing and casing base stationary contact down promote casing stability by resilient means and circular arc surface design under the compressor, further absorb the aftershock, realize vibration/noise reduction.

Furthermore, the upper section of the lower shell is designed to be a cylinder or a cone, so that the stability is good, and the noise vibration is reduced.

Furthermore, the elastic device is a spring piece, the upper step of the base is provided with a plurality of accommodating cavities for accommodating the spring piece, when the lower shell of the compressor is assembled with the lower shell base, two ends of the spring piece abut against the inner wall of the accommodating cavity to provide better elastic support, and when the lower shell of the compressor is separated from the lower shell base, the middle section of the spring piece protrudes outwards from the opening of the accommodating cavity.

Further, from one side far away from the lower section of the lower shell to one side close to the lower section of the lower shell, the accommodating cavity is in a convergent state, when the lower shell of the compressor is separated from the base of the lower shell, the spring piece rebounds and is clamped at the opening of the accommodating cavity, and the spring piece is restrained by the shape of the accommodating cavity, so that the spring piece is prevented from falling off.

Furthermore, the number of the elastic devices is four or eight, the central angle formed by the two oppositely arranged elastic devices and the circle center of the arc convex surface is alpha, wherein alpha is more than or equal to 100 degrees and less than or equal to 120 degrees.

Furthermore, a buffer layer is further arranged on the arc concave surface of the step on the base.

Furthermore, the center of the arc concave surface of the upper step of the base is also provided with a central elastic device, and the central elastic device is in a cross shape or a circular shape in overlooking angle.

The utility model adopts a technical scheme that: provided is a compressor including: the compressor lower shell assembly is described above.

The lower shell assembly of the compressor and the compressor have the advantages that:

1. the casing reduces the vibration amplitude of casing under the compressor operation in-process through the compressor that the design has the circular arc convex surface, casing under the casing base comes the adaptation compressor through the design has the circular arc concave surface, and the resilient means who is furnished with the equipartition in circular arc concave surface department absorbs the aftershock simultaneously, reaches vibration/noise reduction's effect.

Drawings

FIG. 1 is a sectional view of a lower shell assembly of a compressor in accordance with a first embodiment of the present invention, shown disassembled;

FIG. 2 is an assembled cross-sectional view of the lower shell assembly of the compressor in accordance with the first embodiment of the present invention;

FIG. 3 is a top plan view of the base of the lower shell assembly of the compressor in accordance with the first embodiment of the present invention;

FIG. 4 is a detail view of portion A of the base of the lower shell assembly of the compressor in accordance with the first embodiment of the present invention;

FIG. 5 is a top plan view of the base of the lower shell assembly of the compressor in accordance with the second embodiment of the present invention;

the parts in the drawings are numbered as follows: 1. compressor lower casing, 2, lower casing base, 11, lower casing upper segment, 12, lower casing lower segment, 121, circular arc convex surface, 21, base upper step, 22, base lower step, 23, resilient means, 24, central resilient means, 211, circular arc concave surface, 212, holding chamber, 213, buffer layer.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "horizontal", "vertical", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention, and do not indicate or imply that the referenced components or elements must have particular orientations, be constructed and operated in particular orientations, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 4, a first embodiment of the present invention provides a lower shell assembly of a compressor, which is suitable for reducing vibration and noise of the compressor.

This casing assembly under compressor includes: casing 1 and lower casing base 2 under the compressor, casing 1 is used for the compressor with the compressor on casing (not shown) cooperation holding compressor under the compressor, casing base 2 is used for placing the compressor and cooperates casing 1 to realize vibration/noise reduction under the compressor.

The lower shell 1 of the compressor is composed of an upper shell section 11 and a lower shell section 12, wherein the upper shell section 11 is designed as a cylinder, the lower shell section 12 is provided with a circular arc convex surface 121, the arc convex surface is downward, the stability of the lower shell of the compressor is improved by utilizing the characteristic of high stability of the arc structure, thereby reducing the vibration amplitude of the lower shell in the running process of the compressor, thereby reducing the vibration noise of the compressor, the lower shell base 2 is composed of a base upper step 21 and a base lower step 22, the base upper step 21 is provided with a circular arc concave surface 211 matched with the circular arc convex surface 121, the arc concave surface 211 of the upper step 21 of the base is provided with a plurality of elastic devices 23 which are evenly distributed along the circumferential direction, when the lower shell 1 and the base 2 of the lower shell of the compressor are assembled, the elastic devices 23 are pressed tightly, meanwhile, the arc convex surface 121 of the lower case lower section 12 contacts the arc concave surface 211 of the base upper step 21.

Specifically, the lower casing upper section 11 and the lower casing lower section 12 are integrally formed, the base upper step 21 and the base lower step 22 are integrally formed, and the base lower step 22 is further provided with a plurality of mounting points (not shown) uniformly distributed along the circumferential direction for being assembled in the refrigeration system.

Specifically, a buffer layer 213 is further disposed on the arc concave 211 of the upper step 21 of the base, and the buffer layer 213 is attached to the arc concave 211 and reserves an active space of the elastic device 23.

The elastic device 23 is a spring piece, the upper step 21 of the base is provided with a plurality of accommodating cavities 212 for accommodating the spring piece, when the lower shell 1 of the compressor is arranged on the lower shell base 2, the spring piece is compressed until the arc concave surface 211 contacts with the buffer layer 213, at the moment, two ends of the spring piece abut against the inner wall of the accommodating cavity 212 to limit the further compression, when the lower shell 1 of the compressor is separated from the lower shell base 2, the spring piece rebounds, and the middle section of the spring piece protrudes outwards from the opening of the accommodating cavity 212.

Specifically, from one side of keeping away from lower casing hypomere 12 to one side of being close to lower casing hypomere 12, holding chamber 212 is the convergence state, and the spring has sufficient pressurized extension space when both guaranteeing casing 1 under the compressor and casing base 2 assembly, and the spring leaf resilience and card can not deviate from in the opening part of holding chamber 212 when guaranteeing casing 1 under the compressor and casing base 2 separation again.

Specifically, eight spring leaves are arranged at the arc concave surface 211, the spring leaves are rectangular at the overlooking angle, the distance between every two spring leaves is 45 degrees, and a central angle formed by the two spring leaves which are oppositely arranged at the side-looking angle and the circle center of the arc convex surface 121 is alpha, in the embodiment, the central angle alpha is 115 degrees, when the central angle alpha is increased and is especially larger than 120 degrees, the pressure difference born by the two ends of the spring leaves is increased, the spring leaves are easy to deform, when the central angle alpha is reduced and is especially smaller than 100 degrees, the capability of the spring leaves for absorbing aftershock is reduced, the shock absorption efficiency is reduced, and therefore, the central angle alpha is preferably between 100 degrees and 120 degrees.

A first embodiment of the present invention provides a compressor, which includes the compressor lower shell assembly described above.

Referring to fig. 5, a second embodiment of the present invention provides a lower shell assembly of a compressor, which is simply modified in two ways:

the upper section 11 of the lower shell is designed to be conical (not shown), the cross-sectional area of the upper section 11 of the lower shell is gradually reduced in the direction from top to bottom, and the cross-sectional area is matched with the arc convex surface 121 of the lower section 12 of the lower shell, so that the structural stability is further improved, and the vibration amplitude of the lower shell in the operation process of the compressor is further reduced.

The center elastic device 24 is arranged at the right center of the arc concave surface 211 of the upper step 21 of the base, and the center elastic device 24 is circular at the overlooking angle, so that the center force is supplemented for the whole elastic structure, and the damping effect is improved.

The rest is the same as the first embodiment.

1. the vibration amplitude of the lower shell in the running process of the compressor is reduced by designing the lower shell of the compressor with the arc convex surface, the lower shell base with the arc concave surface is designed to be matched with the lower shell of the compressor, and meanwhile, the uniformly distributed elastic devices are arranged at the arc concave surface to absorb aftershocks, so that the effects of shock absorption and noise reduction are achieved;

2. the elastic device is accommodated by the accommodating cavity designed in a convergence state, so that the elastic device can be stably compressed in an assembly state, and can be kept not to fall off in a separation state, and the stability of a damping structure is guaranteed;

3. by limiting the range of the central angle alpha, the structure can be simplified to the maximum extent, the damping efficiency of the structure can be improved, and the service life of the elastic device can be prolonged.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A compressor lower housing assembly, comprising: casing and lower casing base under the compressor, the casing comprises casing upper segment and casing hypomere down under the compressor, the casing hypomere has the circular arc convex surface down, casing base comprises step and base under by the base, the step has the circular arc concave surface with circular arc convex surface looks adaptation on the base the circular arc concave surface of step is provided with a plurality of along circumferencial direction evenly distributed's resilient means on the base, works as when casing and casing base assemble under the compressor, resilient means is compressed tightly, simultaneously, casing and casing base steady contact down under the compressor.

2. The compressor lower shell assembly of claim 1, wherein the lower shell upper section is of cylindrical design or of conical design.

3. The compressor lower shell assembly according to claim 1, wherein the resilient means is a spring plate, the upper step of the base is provided with a plurality of receiving cavities for receiving the spring plate, when the compressor lower shell and the lower shell base are assembled, two ends of the spring plate abut against inner walls of the receiving cavities, and when the compressor lower shell and the lower shell base are separated, a middle section of the spring plate protrudes outward from an opening of the receiving cavity.

4. The compressor lower shell assembly of claim 3, wherein the receiving cavity converges from a side distal to the lower shell lower section to a side proximal to the lower shell lower section, and the spring plate rebounds and snaps over an opening of the receiving cavity when the compressor lower shell and lower shell base are separated.

5. The compressor lower shell assembly according to claim 1, wherein the number of the elastic means is four or eight, and a central angle α formed by two of the elastic means oppositely disposed and a center of the circular arc convex surface is 100 ° ≦ α ≦ 120 °.

6. The compressor lower shell assembly of claim 1, wherein a buffer layer is further disposed on the arc concave surface of the step on the base.

7. The compressor lower shell assembly according to claim 1, wherein a central elastic device is further disposed at the center of the arc concave surface of the base upper step, and the central elastic device is cross-shaped or circular in a top view.

8. A compressor, comprising: the compressor comprises a compressor body, an upper compressor shell assembly and a lower compressor shell assembly, wherein the compressor body is arranged in a space where the upper compressor shell assembly and the lower compressor shell assembly are assembled.