Double-end scroll compressor

Abstract

The utility model relates to the technical field of air compression, in particular to a double-end scroll compressor. In order to solve the problem that an existing compressor is large in occupied space, the double-end scroll compressor comprises a first scroll assembly, a second scroll assembly and a driving motor, and the first scroll assembly and the second scroll assembly are oppositely arranged at the two ends of the driving motor and connected with a driving main shaft of the driving motor; a first exhaust through hole and a first air inlet through hole are formed in a first static scroll plate in the first scroll assembly, a second exhaust through hole and a second air inlet through hole are formed in a second static scroll plate in the second scroll assembly, and the first exhaust through hole and the second exhaust through hole are communicated with a high-pressure exhaust port through a high-pressure exhaust pipe. The first air inlet through hole and the second air inlet through hole are communicated with a low-pressure air inlet through a low-pressure air inlet pipe. The double-end scroll compressor disclosed by the utility model is small in occupied space and high in compression efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of air compression, in particular to a double-headed scroll compressor. Background Art

[0002] With the development of automobile technology, people's requirements for car air conditioners are getting higher and higher. Car air conditioners usually use compressors for cooling. However, due to the relatively small space in the car, the large-displacement compressors take up a lot of space, making layout difficult and even unable to meet user needs. Utility Model Content

[0003] In order to solve the problem that existing compressors occupy a large space, the utility model proposes a double-headed scroll compressor, which includes a first scroll assembly, a second scroll assembly and a drive motor, the first scroll assembly and the second scroll assembly are arranged opposite to each other at both ends of the drive motor and are connected to the drive main shaft of the drive motor; the first static scroll disk in the first scroll assembly is provided with a first exhaust through hole and a first air intake through hole, and the second static scroll disk in the second scroll assembly is provided with a second exhaust through hole and a second air intake through hole, and the first exhaust through hole and the second exhaust through hole are connected to the high-pressure exhaust port through a high-pressure exhaust pipe, and the first air intake through hole and the second air intake through hole are connected to the low-pressure air intake port through a low-pressure intake pipe. The first scroll assembly and the second scroll assembly in the double-headed scroll compressor of the utility model work simultaneously under the drive of the driving motor, which can effectively improve the air compression efficiency; the air intake holes and the exhaust holes on the two scroll assemblies in the double-headed scroll compressor of the utility model are both arranged on the static scroll disk, and the exhaust holes are connected with the high-pressure exhaust port through the high-pressure exhaust pipe, and the air intake holes are connected with the low-pressure air inlet port through the low-pressure intake pipe, that is, the high-pressure exhaust pipe and the low-pressure intake pipe are separately arranged outside the body of the double-headed scroll compressor of the utility model, which can reduce the volume of the double-headed scroll compressor of the utility model, and can also reduce the space occupied by the double-headed scroll compressor of the utility model when it is arranged in a car, effectively solving the problem of large space occupied by existing compressors.

[0004] Preferably, the first scroll assembly is provided with a first end cover, which is integrally formed with the first fixed scroll; and the second scroll assembly is provided with a second end cover, which is integrally formed with the second fixed scroll. Thus, the fixed scroll and the corresponding end cover in the scroll assembly are integrally formed, which not only reduces the volume of the double-headed scroll compressor body of the present invention, further reducing the space required for installation of the double-headed scroll compressor, but also eliminates the need for separate production and processing of the fixed scroll and end covers, effectively reducing the production cost of the double-headed scroll compressor of the present invention.

[0005] Preferably, in the first scroll assembly, the first movable scroll is connected to the first eccentric pin on the driving main shaft via a first eccentric wheel; in the second scroll assembly, the second movable scroll is connected to the second eccentric pin on the driving main shaft via a second eccentric wheel. In this way, in the double-headed scroll compressor of the present invention, the movable scroll in the scroll assembly is connected to the eccentric pin installed on the driving main shaft via the eccentric wheel, which can not only improve the compression efficiency of the scroll assembly by utilizing the eccentric wheel, but also reduce the vibration and noise of the scroll assembly, thereby improving the compression efficiency of the double-headed scroll compressor of the present invention, reducing the vibration and noise of the double-headed scroll compressor of the present invention, and improving the working stability and comfort of the double-headed scroll compressor of the present invention.

[0006] Preferably, a first bearing and a second bearing are provided at both ends of the drive main shaft, and the outer edge of the first bearing seat in the first bearing is sandwiched between the drive housing of the drive motor and the first end cover and connected to the drive housing and the first end cover, and the outer edge of the second bearing seat in the second bearing is sandwiched between the drive housing and the second end cover and connected to the drive housing and the second end cover. In this way, the outer edges of the bearing seats of the bearings provided at both ends of the drive main shaft are sandwiched between the drive housing and the end cover of the drive motor, which not only facilitates the fixing of the bearings, but also allows the outer edges of the bearing seats to cooperate with the drive housing and the end cover to form the outer shell of the main body of the double-headed scroll compressor of the present invention, further reducing the volume of the main body of the double-headed scroll compressor of the present invention. Furthermore, a first mounting through hole is provided on the outer edge of the first bearing seat, and the central axis of the first mounting through hole is parallel to the central axis of the drive main shaft; a second mounting through hole is provided on the outer edge of the second bearing seat, and the central axis of the second mounting through hole is parallel to the central axis of the drive main shaft. In this way, when assembling the double-headed scroll compressor of the present invention, the end cover, the outer edge of the bearing seat and the drive housing can be directly assembled together using bolts. The assembly is simple and convenient, which can further reduce the production cost of the double-headed scroll compressor of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic structural diagram of the double-headed scroll compressor of the utility model;

[0008] Figure 2 for Figure 1 AA cross-sectional structure diagram in. DETAILED DESCRIPTION

[0009] Next, combine Figure 1 and 2 , the double-headed scroll compressor of the utility model is described in detail.

[0010] like Figure 1 and 2As shown, the double-headed scroll compressor of the present invention includes a first scroll assembly 1, a second scroll assembly 2 and a drive motor 3, and the first scroll assembly 1 and the second scroll assembly 2 are arranged opposite to each other at the two ends of the drive motor 3 and are connected to the drive main shaft 31 of the drive motor 3; the first static scroll disk 11 in the first scroll assembly 1 is provided with a first exhaust through hole 111 and a first air intake through hole (not shown in the figure), and the second static scroll disk 21 in the second scroll assembly 2 is provided with a second exhaust through hole 211 and a second air intake through hole 212, and the first exhaust through hole 111 and the second exhaust through hole are connected to the high-pressure exhaust port (not shown in the figure) through the high-pressure exhaust pipe 41, and the first air intake through hole and the second air intake through hole 212 are connected to the low-pressure air intake port (not shown in the figure) through the low-pressure air intake pipe 42. The first scroll assembly 1 and the second scroll assembly 2 in the double-headed scroll compressor of the present invention work simultaneously under the drive of the drive motor 3, which can effectively improve the air compression efficiency; the air intake holes and the exhaust holes on the two scroll assemblies in the double-headed scroll compressor of the present invention are both arranged on the fixed scroll plate, and the exhaust hole is connected to the high-pressure exhaust port through the high-pressure exhaust pipe, and the air intake hole is connected to the low-pressure intake port through the low-pressure intake pipe, that is, the high-pressure exhaust pipe and the low-pressure intake pipe are arranged separately outside the body of the double-headed scroll compressor of the present invention, which can reduce the volume of the double-headed scroll compressor of the present invention and the space occupied by the double-headed scroll compressor of the present invention when it is arranged in a car, effectively solving the problem of large space occupation of existing compressors. Preferably, a first end cover is provided in the first scroll assembly 1, and the first end cover and the first fixed scroll plate 11 are an integral structure; a second end cover is provided in the second scroll assembly 2, and the second end cover and the second fixed scroll plate 21 are an integral structure. In this way, the fixed scroll and the corresponding end cover in the scroll assembly are an integrated structure, which can not only reduce the volume of the double-headed scroll compressor body of the utility model, further reducing the space required for installation of the double-headed scroll compressor of the utility model, but also eliminate the need for separate production and processing of the fixed scroll and the end cover, which can effectively reduce the production cost of the double-headed scroll compressor of the utility model. Preferably, in the first scroll assembly 1, the first orbiting scroll 12 is connected to the first eccentric pin 311 mounted on the drive main shaft 31 via the first eccentric wheel 13; in the second scroll assembly 2, the second orbiting scroll 22 is connected to the second eccentric pin 312 mounted on the drive main shaft 31 via the second eccentric wheel 23. In this way, in the double-headed scroll compressor of the present invention, the movable scroll plate in the scroll assembly is connected to the eccentric pin installed on the driving main shaft 31 through the eccentric wheel. The eccentric wheel can be used to improve the compression efficiency of the scroll assembly and reduce the vibration and noise of the scroll assembly, thereby improving the compression efficiency of the double-headed scroll compressor of the present invention, reducing the vibration and noise of the double-headed scroll compressor of the present invention, and improving the working stability and comfort of the double-headed scroll compressor of the present invention.

[0011] like Figure 2As shown, in the double-headed scroll compressor of the present invention, a first bearing (not shown in the figure) and a second bearing (not shown in the figure) are provided at both ends of the driving main shaft 31, and the outer edge (not shown in the figure) of the first bearing seat 511 in the first bearing is sandwiched between the driving housing 32 of the driving motor 3 and the first end cover and is connected to the driving housing 32 and the first end cover, and the outer edge (not shown in the figure) of the second bearing seat 521 in the second bearing is sandwiched between the driving housing 32 and the second end cover and is connected to the driving housing 32 and the second end cover. In this way, in the bearings provided at both ends of the driving main shaft 31, the outer edges of the bearing seats are both sandwiched between the driving housing 32 of the driving motor and the end cover, which not only facilitates the fixing of the bearings, but also allows the outer edge of the bearing seat to cooperate with the driving housing 32 and the end cover to form the outer shell of the main body of the double-headed scroll compressor of the present invention, further reducing the volume of the main body of the double-headed scroll compressor of the present invention. Preferably, a first mounting hole (not shown) is provided on the outer edge of the first bearing seat 511, and the central axis of the first mounting hole is parallel to the central axis of the drive spindle 31. A second mounting hole (not shown) is provided on the outer edge of the second bearing seat 521, and the central axis of the second mounting hole is parallel to the central axis of the drive spindle 31. In this way, when assembling the double-headed scroll compressor of the present invention, the end cover, the outer edge of the bearing seat, and the drive housing 32 can be directly assembled together using bolts, which is simple and convenient, and can further reduce the production cost of the double-headed scroll compressor of the present invention.

Claims

1. A double-headed scroll compressor, characterized in that: The double-headed scroll compressor includes a first scroll assembly, a second scroll assembly and a drive motor, the first scroll assembly and the second scroll assembly are arranged opposite to each other at both ends of the drive motor and are connected to the drive main shaft of the drive motor; the first static scroll disk in the first scroll assembly is provided with a first exhaust through hole and a first air intake through hole, and the second static scroll disk in the second scroll assembly is provided with a second exhaust through hole and a second air intake through hole, and the first exhaust through hole and the second exhaust through hole are connected to the high-pressure exhaust port through a high-pressure exhaust pipe, and the first air intake through hole and the second air intake through hole are connected to the low-pressure air intake port through a low-pressure intake pipe.

2. The double-headed scroll compressor according to claim 1, characterized in that: The first scroll assembly is provided with a first end cover, and the first end cover and the first fixed scroll plate are an integral structure; the second scroll assembly is provided with a second end cover, and the second end cover and the second fixed scroll plate are an integral structure.

3. The double-headed scroll compressor according to claim 1 or 2, characterized in that: In the first scroll assembly, the first movable scroll is connected to a first eccentric pin mounted on the driving main shaft via a first eccentric wheel; in the second scroll assembly, the second movable scroll is connected to a second eccentric pin mounted on the driving main shaft via a second eccentric wheel.

4. The double-headed scroll compressor according to claim 2, characterized in that: A first bearing and a second bearing are provided at both ends of the driving main shaft, and an outer edge of the first bearing seat in the first bearing is sandwiched between the driving housing of the driving motor and the first end cover and connected to the driving housing and the first end cover, and an outer edge of the second bearing seat in the second bearing is sandwiched between the driving housing and the second end cover and connected to the driving housing and the second end cover.

5. The double-headed scroll compressor according to claim 4, characterized in that: A first mounting through hole is provided on the outer edge of the first bearing seat, and the central axis of the first mounting through hole is parallel to the central axis of the driving spindle; a second mounting through hole is provided on the outer edge of the second bearing seat, and the central axis of the second mounting through hole is parallel to the central axis of the driving spindle.

Images