CN-121993399-A - Scroll compressor, air conditioner and vehicle

CN121993399ACN 121993399 ACN121993399 ACN 121993399ACN-121993399-A

Abstract

The invention discloses a scroll compressor, an air conditioner and a vehicle, wherein the scroll compressor comprises a compression part and a shell, the compression part is provided with an exhaust port, an exhaust cavity is defined between the shell and the compression part, the exhaust port is communicated with the exhaust cavity, the exhaust cavity is communicated with an oil separation cavity through an exhaust hole, the exhaust cavity comprises a plurality of expansion cavities communicated through a contraction part, the expansion cavities are sequentially arranged in the direction from the exhaust port to the exhaust hole, the exhaust port and the exhaust hole are respectively communicated with the corresponding expansion cavities, and the maximum cross-sectional area of the contraction part is smaller than the minimum cross-sectional area of the expansion cavities. Therefore, the exhaust cavity comprises a plurality of expansion cavities which are sequentially arranged in the direction from the exhaust port to the air outlet, and the expansion cavities are communicated through the contraction part, so that the refrigerant can be contracted and expanded for a plurality of times in the process of flowing through the exhaust cavity, the effect of reducing the exhaust pressure pulsation of the scroll compressor is improved, and the noise of the scroll compressor is reduced.

Inventors

WU HUALONG
WU JIAHUI
HAO WEI
Zong Kairong

Assignees

安徽威灵汽车部件有限公司
安庆威灵汽车部件有限公司
广东威灵汽车部件有限公司

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (14)

1.A scroll-type compressor, which comprises a housing, characterized by comprising the following steps: A compression member provided with an exhaust port; The shell is arranged on one side of the compression part and is communicated with the exhaust cavity, the shell is also provided with an oil separation cavity, the exhaust cavity is provided with an air outlet, and the air outlet is used for communicating the oil separation cavity with the exhaust cavity; The exhaust cavity comprises a plurality of expansion cavities, the expansion cavities are sequentially arranged in the direction from the exhaust port to the air outlet, every two expansion cavities which are adjacently arranged are communicated through a contraction part, and the exhaust port and the air outlet are respectively communicated with the corresponding expansion cavities; the maximum cross-sectional area of the constriction is less than the minimum cross-sectional area of the expansion chamber.
2. The scroll compressor of claim 1, wherein two opposed chamber walls of the discharge chamber are each formed with a spacing projection, the spacing projections disposed opposite each other extending in a direction toward each other and being spaced apart to define the constriction.
3. The scroll compressor of claim 1, wherein the plurality of expansion chambers includes a first expansion chamber, an intermediate expansion chamber, and a second expansion chamber, the exhaust port is in communication with the first expansion chamber, the exhaust port is in communication with the second expansion chamber, and the first expansion chamber and the second expansion chamber are each in communication with the respective intermediate expansion chamber through the constriction.
4. A scroll compressor as claimed in claim 3, wherein the intermediate expansion chamber is plural and the volumes of the plural intermediate expansion chambers are different.
5. A scroll compressor as recited in claim 3, wherein the volume of the first expansion chamber is maximized.
6. The scroll compressor of claim 1, wherein the minimum cross-sectional area S1 of the constriction and the minimum cross-sectional area S2 of the discharge port satisfy the relationship 0.6≤S1/S2≤2.5.
7. The scroll compressor of claim 6, wherein the minimum cross-sectional area S1 of the constriction and the minimum cross-sectional area S2 of the discharge port satisfy the relationship 0.8≤S1/S2≤1.5.
8. The scroll compressor of any one of claims 1-7, wherein a maximum cross-sectional area of the gas outlet aperture is less than a minimum cross-sectional area of the oil separation chamber.
9. The scroll compressor of claim 8, wherein the housing is further formed with an oil storage chamber in communication with the oil separation chamber, a buffer chamber is formed in the expansion chamber in communication with the discharge port among the plurality of expansion chambers, and at least a portion of a side plate of the housing defining the buffer chamber protrudes from an inner wall of the oil storage chamber in a direction toward an inside of the oil storage chamber.
10. The scroll compressor of claim 9, wherein at least a portion of the buffer chamber is located above the gas outlet in a height direction.
11. The scroll compressor of claim 9, wherein the volume V1 of the discharge chamber and the volume V2 of the oil storage chamber satisfy the relationship V1/V2≥2.
12. The scroll compressor of claim 11, wherein the volume V1 of the discharge chamber and the volume V2 of the oil storage chamber satisfy the relationship 3≤V1/V2≤4.5.
13. An air conditioner, characterized in that it comprises a scroll compressor according to any one of claims 1-12.
14. A vehicle comprising a scroll compressor according to any one of claims 1-12 or an air conditioner according to claim 13.

Description

Scroll compressor, air conditioner and vehicle Technical Field The invention relates to the technical field of scroll compressors, in particular to a scroll compressor, an air conditioner and a vehicle. Background The vortex compressor has the characteristics of high efficiency, stable operation and the like, is widely applied to various air conditioning and heat pump systems, and is a preferable scheme particularly in the air conditioning system of a new energy automobile. In the related art, in the exhaust process of the scroll compressor, the contraction and diffusion effects of the refrigerant are limited, so that the exhaust pressure pulsation of the scroll compressor is large, the noise of the scroll compressor is large, and the hearing of a user is influenced. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a scroll compressor in which exhaust pressure pulsation can be effectively reduced, thereby reducing noise of the scroll compressor. A scroll compressor comprises a compression part, a shell, an oil separation cavity, an air outlet hole and a plurality of expansion cavities, wherein the compression part is provided with the air outlet, the shell is arranged on one side of the compression part and is communicated with the air outlet cavity, the air outlet is further provided with the oil separation cavity, the air outlet hole is used for communicating the oil separation cavity with the air outlet cavity, the expansion cavities are sequentially arranged in the direction from the air outlet to the air outlet hole, each two adjacent expansion cavities are communicated through a contraction part, the air outlet and the air outlet hole are respectively communicated with the corresponding expansion cavity, and the maximum cross-sectional area of the contraction part is smaller than the minimum cross-sectional area of the expansion cavity. According to the scroll compressor provided by the embodiment of the invention, the exhaust cavity comprises the plurality of expansion cavities which are sequentially arranged in the direction from the exhaust port to the air outlet, and the expansion cavities are communicated through the contraction part, so that the refrigerant can be contracted and expanded for a plurality of times in the process of flowing through the exhaust cavity, the times of contraction and expansion in the flowing process of the refrigerant are increased, the effect of reducing the exhaust pressure pulsation of the scroll compressor is improved, and the noise of the scroll compressor is reduced. According to some embodiments of the invention, two opposite cavity walls of the exhaust cavity are respectively formed with limiting protrusions, and the limiting protrusions arranged oppositely extend towards each other and are arranged at intervals to define the constriction. According to some embodiments of the invention, the plurality of expansion chambers includes a first expansion chamber, an intermediate expansion chamber, and a second expansion chamber, the exhaust port is in communication with the first expansion chamber, the exhaust port is in communication with the second expansion chamber, and the first expansion chamber and the second expansion chamber are each in communication with the respective intermediate expansion chamber through the constriction. According to some embodiments of the invention, the intermediate expansion lumen is a plurality and the volumes of the plurality of intermediate expansion lumens are different. According to some embodiments of the invention, the volume of the first expansion chamber is maximized. According to some embodiments of the invention, the minimum cross-sectional area S1 of the constriction and the minimum cross-sectional area S2 of the vent satisfy the relationship 0.6≤S1/S2≤2.5. According to some embodiments of the invention, the minimum cross-sectional area S1 of the constriction and the minimum cross-sectional area S2 of the vent satisfy the relationship 0.8≤S1/S2≤1.5. According to some embodiments of the invention, the maximum cross-sectional area of the gas outlet aperture is smaller than the minimum cross-sectional area of the oil separation chamber. According to some embodiments of the invention, the housing further forms an oil storage chamber communicating with the oil separation chamber, a buffer chamber is formed in the expansion chamber communicating with the exhaust port among the plurality of expansion chambers, and at least part of a side plate defining the buffer chamber protrudes from an inner wall of the oil storage chamber in a direction toward an inside of the oil storage chamber. According to some embodiments of the invention, at least part of the buffer chamber is located above the gas outlet hole in the height direction. According to some embodiments of the invention, the volume V1 of the exhaust cavity