CN218717517U

CN218717517U - Exhaust noise reduction rear cover of electric scroll compressor

Info

Publication number: CN218717517U
Application number: CN202223119072.7U
Authority: CN
Inventors: 叶瑞桃; 夏敏; 赵军华; 王晓飞
Original assignee: Chongqing Pacific Precision Technology Co ltd; Jiangsu Pacific Precision Forging Co Ltd
Current assignee: Chongqing Pacific Precision Technology Co ltd; Jiangsu Pacific Precision Forging Co Ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-24
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses an electric scroll compressor's exhaust back lid of making an uproar that falls, including hinged joint spare, back lid main part, gas outlet, interior seal chamber, connecting piece and back lid handle, the last back lid main part of installing of hinged joint spare, the gas outlet has been seted up in the back lid main part, be provided with the interior seal chamber in the back lid main part, the interior seal chamber comprises exhaust chamber and No. two exhaust chambers, just install the baffle between exhaust chamber and No. two exhaust chambers, exhaust passage has been seted up on the baffle, be provided with the exhaust hole in No. two exhaust chambers, be provided with the connecting piece in the exhaust chamber, lid handle after covering fixedly connected with in the main part. The utility model discloses under the prerequisite that does not influence electric scroll compressor performance, optimize the structural design in back lid exhaust chamber, through the exhaust ability of branch preface effectively reduce gas pressure fluctuation, subdue the air current pulsation, reduce the monomer noise, the scheme is simple, easy to carry out, can effectively improve the travelling comfort that electric scroll compressor used in whole car market.

Description

Exhaust noise reduction rear cover of electric scroll compressor

Technical Field

The utility model relates to an electronic scroll compressor's exhaust back lid technical field, concretely relates to electronic scroll compressor's exhaust back lid of making an uproar of falling.

Background

The electric scroll compressor is a positive displacement compressor, and is widely applied to the field of air-conditioning compressors for electric automobiles due to the characteristics of compact structure, small volume, light weight, high efficiency and the like. In recent years, with the rapid development of electric automobiles, the market noise standard of the whole automobile is becoming more and more strict, low noise is becoming one of important indexes for measuring the product quality of the electric automobiles, and as a core part of an air conditioner heat management system of the electric automobiles, the single noise level of an electric compressor plays a critical role in the noise level of the whole automobile, and increasingly becomes the most important factor influencing the comfort of the whole automobile.

The existing electric scroll compressor depends on a crescent closed volume cavity formed by meshing a movable scroll plate and a fixed scroll plate, air suction, compression and exhaust working processes are completed through continuous change of a cavity from large to small, high-temperature and high-pressure refrigerant gas flows out of an exhaust port of the fixed scroll plate and then enters an exhaust cavity of a rear cover, the exhaust cavity structure of the rear cover in the prior art generates large airflow pulsation noise, for example, an exhaust system for a scroll compressor disclosed by the application number of 201910708187.3 is small in pulse and buffer airflow due to a regular circular structure, and a smooth airflow conveying channel cannot slow down exhaust noise and affects comfort level.

Therefore, it is necessary to provide a back cover for an electric scroll compressor to reduce noise and exhaust air.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an exhaust of electronic scroll compressor falls back lid of making an uproar to the noise of lid is big after the exhaust of electronic scroll compressor in the solution technique, the not good problem of travelling comfort.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an exhaust of electronic scroll compressor falls back lid of making an uproar, covers main part, gas outlet, interior seal chamber, connecting piece and hou gai handle after including hinged joint spare, back lid main part, the gas outlet has been seted up in the back lid main part, be provided with interior seal chamber in the back lid main part, interior seal chamber comprises a chamber of exhausting and No. two exhaust chambers, just install the baffle between a chamber of exhausting and No. two exhaust chambers, exhaust passage has been seted up on the baffle, no. two exhaust intracavity are provided with the exhaust hole, be provided with the connecting piece in the chamber of exhausting, cover the handle after covering main part fixedly connected with after.

Preferably, a plurality of circular through holes are formed in the rear cover main body, the diameters of the circular through holes are the same, and the diameter of the through hole is matched with that of the universal bolt.

Preferably, the inner sealed cavity is approximately circular, and the area of the inner sealed cavity is approximately one half of the area of the rear cover main body.

Preferably, the volume in the first exhaust cavity is approximately twice of the volume in the second exhaust cavity, and the first exhaust cavity and the second exhaust cavity are communicated by an exhaust channel.

Preferably, the partition plate is fixedly connected with the inner sealing cavity, the height of the partition plate is the same as that of the inner sealing cavity, and the partition plate is fixedly connected with one end of the connecting piece.

Preferably, the exhaust hole is formed in one side close to the air outlet and is fixedly connected with the partition plate.

Preferably, the connecting piece is fixedly connected to the rear cover main body and arranged in the first exhaust cavity, and the mounting direction of the connecting piece is on the radial extension line of the air outlet.

Preferably, the rear cover handle and the rear cover main body are integrally formed, the size of the rear cover handle is similar to that of the hinge connector, and the rear cover handle is made of the same material as that of the hinge connector.

In the technical scheme, the utility model provides a technological effect and advantage:

1. on the premise of not influencing the performance of the electric scroll compressor, the structural design of the exhaust cavity of the rear cover is optimized, the gas pressure fluctuation can be effectively reduced through the sequential exhaust, the gas flow pulsation is reduced, the monomer noise is reduced, the scheme is simple and easy to implement, and the comfort of the electric scroll compressor in the whole vehicle market application can be effectively improved;

2. aiming at the problems of large exhaust pulsation and high monomer noise in the rear cover of the compressor, the structural design of the exhaust cavity of the rear cover is optimized, the gas pressure fluctuation can be effectively reduced through the sequential exhaust, the gas flow pulsation is reduced, the monomer noise is reduced, and the comfort of the whole vehicle is improved.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a partial front view of the rear cover body of the present invention;

fig. 3 is a schematic diagram of the structure of the internal airflow of the present invention.

Description of reference numerals:

1. a hinge connection; 2. a rear cover main body; 3. an air outlet; 4. an inner sealed cavity; 5. a first exhaust chamber; 6. A second exhaust cavity; 7. a partition plate; 8. an exhaust passage; 9. an exhaust hole; 10. a connecting member; 11. a rear cover handle.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a back lid of making an uproar falls in exhaust of electronic scroll compressor as shown in fig. 1-3, including hinged joint spare 1, back lid main part 2, gas outlet 3, interior seal chamber 4, connecting piece 10 and back lid handle 11, last back lid main part 2 of installing of hinged joint spare 1, gas outlet 3 has been seted up on the back lid main part 2, be provided with interior seal chamber 4 in the back lid main part 2, interior seal chamber 4 comprises exhaust chamber 5 and No. two exhaust chambers 6, and install baffle 7 between exhaust chamber 5 and No. two exhaust chambers 6, exhaust passage 8 has been seted up on the baffle 7, be provided with exhaust hole 9 in No. two exhaust chambers 6, be provided with connecting piece 10 in No. one exhaust chamber 5, back lid handle 11 after fixedly connected with on the back lid main part 2.

A plurality of circular through holes are formed in the rear cover main body 2, the diameters of the circular through holes are the same, the diameter of the through holes is matched with that of a universal bolt, the inner sealing cavity 4 is approximately circular, the area of the inner sealing cavity 4 is nearly one half of that of the rear cover main body 2, the volume of the first exhaust cavity 5 is nearly twice that of the second exhaust cavity 6, and the first exhaust cavity 5 is communicated with the second exhaust cavity 6 through an exhaust channel 8.

Baffle 7 and 4 fixed connection in sealed chamber, and the height of baffle 7 is the same with the height in sealed chamber 4, and baffle 7 and connecting piece 10 one end fixed connection, exhaust hole 9 is seted up in the one side that is close to gas outlet 3, and exhaust hole 9 and baffle 7 fixed connection, connecting piece 10 fixed connection is on back lid main part 2, and it sets up in exhaust chamber 5 No. one, and the installation direction of connecting piece 10 is on the radial extension line of gas outlet 3, back lid handle 11 and back lid main part 2 integrated into one piece, and the size of back lid handle 11 is similar with the size of hinge joint spare 1, and the material of back lid handle 11 is the same with the material of hinge joint spare 1.

The utility model discloses the theory of operation:

referring to the attached drawings 1-3 of the specification, when the utility model is used, firstly, a partition plate 7 is arranged in a first exhaust cavity 5 close to one side of an exhaust hole 9, so that the inner sealing cavity 4 is divided into the first exhaust cavity 5 and a second exhaust cavity 6, and two sides of the upper end surface of the partition plate 7 close to the outer edge of the inner sealing cavity 4 are respectively provided with an exhaust channel 8 for communicating the first exhaust cavity 5 with the second exhaust cavity 6;

high-temperature and high-pressure refrigerant gas is conveyed from an exhaust port of the fixed scroll and then preferentially enters the first exhaust cavity 5, turbulent airflow fills the first exhaust cavity 5 in advance under the partition action of the partition plate 7, the pressure fluctuation tends to be stable, airflow with relatively stable pressure relatively uniformly enters the second exhaust cavity 6 through an exhaust channel 8 on the upper end surface of the partition plate 7 and finally converges into an exhaust hole 9 to flow out of the air outlet 3;

referring to the attached drawings 1-3 of the specification, when the utility model is used, the gas pressure fluctuation can be effectively reduced through the exhaust in sequence, the gas flow pulsation is reduced, the monomer noise of the electric scroll compressor is reduced, and the comfort of the whole vehicle is improved.

Claims

1. The utility model provides an exhaust of electronic scroll compressor falls back lid of making an uproar, includes hinge joint spare (1), back lid main part (2), gas outlet (3), interior seal chamber (4), connecting piece (10) and back lid handle (11), its characterized in that: install back lid main part (2) on hinge joint spare (1), gas outlet (3) have been seted up on back lid main part (2), be provided with inside seal chamber (4) in back lid main part (2), inside seal chamber (4) comprise exhaust chamber (5) and No. two exhaust chambers (6), just install baffle (7) between exhaust chamber (5) and No. two exhaust chambers (6), exhaust passage (8) have been seted up on baffle (7), be provided with exhaust hole (9) in No. two exhaust chambers (6), be provided with connecting piece (10) in exhaust chamber (5), fixedly connected with back lid handle (11) on back lid main part (2).

2. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 1, wherein: a plurality of circular through holes are formed in the rear cover main body (2), the diameters of the circular through holes are the same, and the diameters of the through holes are matched with those of the universal bolts.

3. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 1, wherein: the inner sealing cavity (4) is approximately circular, and the area of the inner sealing cavity (4) is approximately one half of the area of the rear cover main body (2).

4. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 1, wherein: the volume of the first exhaust cavity (5) is nearly twice that of the second exhaust cavity (6), and the first exhaust cavity (5) is communicated with the second exhaust cavity (6) through an exhaust channel (8).

5. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 3, wherein: the partition plate (7) is fixedly connected with the inner sealing cavity (4), the height of the partition plate (7) is the same as that of the inner sealing cavity (4), and the partition plate (7) is fixedly connected with one end of the connecting piece (10).

6. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 5, wherein: the exhaust hole (9) is formed in one side close to the air outlet (3), and the exhaust hole (9) is fixedly connected with the partition plate (7).

7. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 4, wherein: the connecting piece (10) is fixedly connected to the rear cover main body (2) and arranged in the first exhaust cavity (5), and the mounting direction of the connecting piece (10) is on the radial extension line of the air outlet (3).

8. The exhaust and noise reduction rear cover of the electric scroll compressor as claimed in claim 1, wherein: the rear cover handle (11) and the rear cover main body (2) are integrally formed, the size of the rear cover handle (11) is similar to that of the hinge connecting piece (1), and the rear cover handle (11) is made of the same material as that of the hinge connecting piece (1).