CN218862859U

CN218862859U - Compressor and air conditioning unit

Info

Publication number: CN218862859U
Application number: CN202223425858.1U
Authority: CN
Inventors: 武晓昆; 唐晗; 韩熙杰; 龙忠铿
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-14
Anticipated expiration: 2032-12-20

Abstract

The utility model provides a compressor and air conditioning unit. The compressor comprises a suction end cover, the motor is arranged in the suction end cover, and an air inlet is formed in the suction end cover; the supporting piece is arranged on the air suction end cover and is positioned between the air inlet and the rotating shaft; the supporting bearing is arranged on the supporting piece, and the part, far away from the compression assembly, of the rotating shaft is arranged on the supporting bearing. The utility model provides a compressor and air conditioning unit sets up support piece between air inlet and pivot to form the discharge orifice on support piece, can realize the support of countershaft promptly, alleviate compressor operation in-process pivot and produce vibration or displacement, also can avoid support piece to shelter from the air intake and influence the air input of compressor, reduce the obstructed phenomenon of refrigerant circulation of compressor, further improve the work efficiency of compressor.

Description

Compressor and air conditioning unit

Technical Field

The utility model relates to a compression equipment technical field, especially a compressor and air conditioning unit.

Background

In a refrigeration system, a compressor is used for sucking a gaseous refrigerant from an outlet of an evaporator, compressing the gaseous refrigerant to change the gaseous refrigerant into a liquid refrigerant, and conveying the liquid refrigerant to a condenser. Various types of compressors, including positive displacement screw compressors, may be used in such refrigeration systems.

The working principle of the screw compressor is as follows: a motor and a pair of compressor rotors are arranged in the semi-closed compressor. The motor rotor is arranged on the driving rotor of the compressor to form a coaxial direct-drive structure. When the compressor works, low-temperature refrigerant from the evaporator enters the compressor from the air suction port, passes through the motor, and enters the compression cavity after cooling the motor.

The pivot of current compressor can extend to air inlet department to set up screw rod support frame, bearing support isotructure in air inlet department, can cause the occupation space to the air inlet more, reduce the air input of compressor, cause the problem that compressor work efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem of low working efficiency caused by low air inflow of the compressor, the compressor and the air conditioning unit are provided, wherein an overflowing hole is formed in a supporting piece to ensure the air inflow.

A compressor including a motor and a compression assembly connected to a shaft of the motor, comprising:

the motor is arranged in the air suction end cover, and an air inlet is formed in the air suction end cover;

the supporting piece is arranged on the air suction end cover and is positioned between the air inlet and the rotating shaft;

the supporting bearing is arranged on the supporting piece, and the part of the rotating shaft, which is far away from the compression assembly, is arranged on the supporting bearing;

an overflow hole is formed in the support member, and the air inlet is communicated with the compression assembly through the overflow hole.

The support piece comprises at least two support ribs, one end of each support rib is arranged on the air suction end cover, the other end of each support rib is connected with the support bearing, and the support bearing is adjacent to the support bearing.

The cross section of the supporting rib is triangular, and the vertex angle of the triangle faces to the axis of the rotating shaft.

The apex angle W of the triangle is in the range of 15 ° to 90 °.

The number range of the support ribs is 3-10, and all the support ribs are annularly distributed by taking the axis of the rotating shaft as the axis.

On the plane where the supporting bearing is located, the ratio of the sum of the projection areas of all the supporting ribs to the projection area of the air suction end cover is smaller than or equal to 0.4.

The motor comprises a stator, the stator surrounds the outer side of the supporting bearing, the longitudinal section of the supporting rib is arc-shaped, and the arc-shaped opening faces the stator.

An air inlet flow channel is arranged in the air suction end cover, one end of the air inlet flow channel is communicated with the air inlet, and the other end of the air inlet flow channel is communicated with the compression assembly.

The compression assembly includes intermeshing male and female rotors, the male rotor being connected to the shaft.

An air conditioning unit comprises the compressor.

The utility model provides a compressor and air conditioning unit sets up support piece between air inlet and pivot to form the discharge orifice on support piece, can realize the support of countershaft promptly, alleviate compressor operation in-process pivot and produce vibration or displacement, also can avoid support piece to shelter from the air intake and influence the air input of compressor, reduce the obstructed phenomenon of refrigerant circulation of compressor, further improve the work efficiency of compressor.

Drawings

Fig. 1 is a sectional view of a compressor according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a support member provided in an embodiment of the present invention;

in the figure:

1. a motor; 2. a compression assembly; 11. a rotating shaft; 3. a suction end cap; 31. an air inlet; 4. a support member; 41. an overflowing hole; 5. a support bearing; 42. supporting ribs; 12. and a stator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The compressor shown in fig. 1 and 2 comprises a motor 1 and a compression assembly 2, wherein the compression assembly 2 is connected to a rotating shaft 11 of the motor 1, and comprises: the motor 1 is arranged in the air suction end cover 3, and an air inlet 31 is formed in the air suction end cover 3; the supporting piece 4 is arranged on the suction end cover 3, and the supporting piece 4 is positioned between the air inlet 31 and the rotating shaft 11; the supporting bearing 5 is arranged on the supporting piece 4, and the part of the rotating shaft 11 far away from the compression assembly 2 is arranged on the supporting bearing 5; the support 4 is formed with an overflowing hole through which the intake port 31 communicates with the compressing assembly 2. Set up support piece 4 between air inlet 31 and pivot 11, and form discharge orifice 41 on support piece 4, can realize the support of counter shaft 11 promptly, be equivalent to increase the strong point of counter shaft 11 in the position department of keeping away from compression assembly 2, alleviate compressor operation in-process pivot 11 and produce vibration or displacement, increase the firm effect of pivot 11, also can avoid support piece 4 to shelter from the air intake and influence the air input of compressor, reduce the obstructed phenomenon of refrigerant circulation of compressor, further improve the work efficiency of compressor.

In one embodiment, the supporting member 4 includes at least two supporting ribs 42, one end of each supporting rib 42 is disposed on the suction end cap 3, the other end of each supporting rib 42 is connected to the supporting bearing 5, and the overflowing hole 41 is formed between two adjacent supporting ribs 42. The support of the support bearing 5 is realized by the support rib 42, and meanwhile, the support rib 42 can reduce the occupation of the flow area as much as possible, thereby ensuring the air inflow of the compressor and the compression effect of the compressor.

Preferably, the support ribs 42 are streamlined to minimize the effect of fluid obstruction, thereby increasing the amount of intake air to the compressor.

Optionally, the cross section of the support rib 42 is triangular, and the vertex angle of the triangle faces the axis of the rotating shaft 11. Fluid can shunt in the apex angle department of triangle-shaped when supporting rib 42 to smooth and easy hypotenuse that flows through triangle-shaped finally passes through supporting rib 42, and the pressure loss of effectual reduction fluid guarantees the work efficiency of compressor.

The apex angle W of the triangle is in the range of 15 ° to 90 °. Wherein the smaller the angle of the apex angle of the triangle, the smaller the pressure loss of the fluid is caused, but the smaller the structural strength of the support rib 42 is, the lower the supporting effect on the support bearing 5 becomes, and the compressor reliability also becomes, and the larger the angle of the apex angle of the triangle is, the larger the pressure loss of the fluid is caused, but the larger the structural strength of the support rib 42 is, the stronger the supporting effect on the support bearing 5 becomes.

The number of the support ribs 42 ranges from 3 to 10, and all the support ribs 42 are annularly distributed by taking the axis of the rotating shaft 11 as the axis. The quantity of brace rod 42 is injectd according to actual need, need set up three at least to the realization is to the three point support of support bearing 5, avoids support bearing 5 to produce the displacement, can flow equalize the fluid that all brace rods 42 evenly distributed got into air inlet 31 in addition, can improve the even degree of heat dissipation of motor 1, also can improve the effect of breathing in of compression subassembly 2, further improves the work efficiency of compressor.

On the plane where the support bearing 5 is located, the ratio of the sum of the projection areas of all the support ribs 42 to the projection area of the suction end cover 3 is less than or equal to 0.4. So that the support ribs 42 minimize the blocking effect generated when the fluid circulates, while ensuring the supporting effect on the support bearing 5.

The motor 1 comprises a stator 12, the stator 12 surrounds the outer side of the support bearing 5, the longitudinal section of the support rib 42 is arc-shaped, and the opening of the arc faces the stator 12. Also be greater than the axial dimension of the rotor of motor 1 for the axial dimension of stator 12, guarantee the reliability of rotor work, because the size overlength of stator 12, it can encircle in support bearing 5's the outside, in order to avoid brace 42 and stator 12 to produce the structure and interfere, sets up the longitudinal section of brace 42 into the arc, utilizes the arc to dodge stator 12, can also realize the joint support to support bearing 5 simultaneously.

Be provided with the inlet flow way in the end cover 3 of breathing in, the one end of inlet flow way with air inlet 31 intercommunication, the other end with compression assembly 2 intercommunication. The fluid (refrigerant and lubricating oil) flowing through the air inlet channel can cool the motor 1 (particularly the stator 12 of the motor 1), and can supply air to the compression assembly 2, so that the compression efficiency of the compression assembly 2 is ensured.

As an embodiment, the compression assembly 2 includes a male rotor and a female rotor engaged with each other, and the male rotor is connected to the rotating shaft 11. Compression of the fluid is achieved by intermeshing of male and female rotors.

An air conditioning unit comprises the compressor.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A compressor, comprising a motor (1) and a compression assembly (2), the compression assembly (2) being connected to a rotating shaft (11) of the motor (1), characterized in that: the method comprises the following steps:

the motor (1) is arranged in the air suction end cover (3), and an air inlet (31) is formed in the air suction end cover (3);

the support piece (4), the support piece (4) is arranged on the air suction end cover (3), and the support piece (4) is positioned between the air inlet (31) and the rotating shaft (11);

the supporting bearing (5), the supporting bearing (5) is arranged on the supporting piece (4), and the part of the rotating shaft (11) far away from the compression assembly (2) is arranged on the supporting bearing (5);

an overflowing hole (41) is formed in the support (4), and the air inlet (31) is communicated with the compression assembly (2) through the overflowing hole (41).

2. The compressor of claim 1, wherein: the support piece (4) comprises at least two support ribs (42), one end of each support rib (42) is arranged on the air suction end cover (3), the other end of each support rib is connected with the support bearing (5), and the flow passing holes (41) are formed between the two adjacent support ribs (42).

3. The compressor of claim 2, wherein: the cross section of the support rib (42) is triangular, and the vertex angle of the triangle faces to the axis of the rotating shaft (11).

4. A compressor according to claim 3, wherein: the apex angle W of the triangle is in the range of 15 ° to 90 °.

5. The compressor of claim 2, wherein: the number range of the support ribs (42) is 3-10, and all the support ribs (42) are annularly distributed by taking the axis of the rotating shaft (11) as an axis.

6. The compressor of claim 2, wherein: on the plane where the support bearing (5) is located, the ratio of the sum of the projection areas of all the support ribs (42) to the projection area of the suction end cover (3) is less than or equal to 0.4.

7. The compressor of claim 2, wherein: the motor (1) comprises a stator (12), the stator (12) surrounds the outer side of the supporting bearing (5), the longitudinal section of the supporting rib (42) is arc-shaped, and the arc-shaped opening faces the stator (12).

8. The compressor of claim 1, wherein: an air inlet flow channel is arranged in the air suction end cover (3), one end of the air inlet flow channel is communicated with the air inlet (31), and the other end of the air inlet flow channel is communicated with the compression assembly (2).

9. The compressor of claim 1, wherein: the compression assembly (2) comprises a male rotor and a female rotor in mesh with each other, the male rotor being connected to the rotary shaft (11).

10. An air conditioning unit, its characterized in that: comprising a compressor according to any one of claims 1 to 9.