High-pressure rotating shaft seal of automobile air conditioner compressor

Abstract

The utility model relates to a high-pressure rotating shaft seal of an automobile air conditioner compressor, which is characterized in that a sealing unit design is optimized, a clutch assembly, a sealing cover and a sealing component are tightly combined to form a compact structure, and the size and the weight are effectively reduced. Through the combination of the sealing cylinder, the moving ring seat, the static sealing seat, the spring and the rubber sealing ring, the sealing performance is remarkably improved, refrigerant leakage is prevented, and stable operation of the compressor under high pressure is ensured. The bolts and the threaded holes are adopted, installation and maintenance are simplified, interchangeability and adaptability are improved, the service life is prolonged, and meanwhile maintenance cost is reduced. According to the design, the durability of the compressor is improved, the application range of a product is widened, and an efficient and reliable sealing solution is provided for an automobile air conditioning system.

Description

Technical Field

[0001] The utility model relates to automobile manufacturing and parts, in particular to a high-pressure rotary shaft seal for an automobile air-conditioning compressor. Background Art

[0002] The automotive air conditioning compressor is the core component of the automotive air conditioning system. It is responsible for driving the refrigeration cycle and compressing the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure state to achieve heat transfer and refrigeration effect. In the automotive air conditioning compressor, the high-pressure rotary shaft seal is a key component, which ensures the sealing isolation of the compressor assembly and the compressor body, preventing refrigerant leakage and impurities from entering the compressor assembly. Utility Model Content

[0003] The utility model designs a new type of high-pressure rotary shaft seal for automobile air-conditioning compressors, which improves the sealing performance and durability by optimizing the structure of the sealing unit. The utility model aims to bring revolutionary improvements to the reliability and maintainability of automobile air-conditioning systems, reduce environmental pollution, reduce maintenance costs, and ensure that drivers have a more comfortable and environmentally friendly driving experience.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A high-pressure rotary shaft seal for an automobile air-conditioning compressor, comprising a compressor characterized in that it comprises a sealing unit;

[0005] The compressor includes a clutch assembly, the clutch assembly is fixedly connected to a cover, the cover is provided with a through hole, the through hole is located at the center of the cover, the through hole passes through the cover, the output shaft of the clutch assembly passes through the through hole and is connected to a device inside the compressor body, and the cover is fixedly connected to the compressor body;

[0006] The sealing unit includes a sealing cylinder and a dynamic ring seat. The sealing cylinder is fixedly connected to the sealing cover, the sealing cylinder is tightly attached to the end of the compressor body, the sealing cylinder has a cavity inside, a static sealing seat is fixedly installed on the inner arm of the sealing cylinder, an elastic groove is provided in the static sealing seat, a spring is installed in the elastic groove, the dynamic ring seat is fixedly connected to the output shaft of the clutch assembly, a sealing groove is formed in the gap between the dynamic ring seat and the static sealing seat, and a rubber sealing ring is installed in the sealing groove.

[0007] Preferably, the sealing cover is provided with a connecting ring, the connecting ring is located at the center, and the connecting ring is provided with a threaded hole.

[0008] Preferably, the sealing cylinder is provided with a threaded through hole, the threaded through hole is parallel to the threaded hole, and the sealing cylinder and the sealing cover are fixedly connected by a bolt passing through the through hole and threadedly cooperating with the threaded hole.

[0009] Preferably, one end of the spring is in close contact with the connecting ring, and the other end of the spring is in close contact with the moving ring seat.

[0010] Preferably, the sealing cylinder is provided with a threaded through hole, the static sealing seat is provided with a threaded hole, and the fixed connection between the sealing cylinder and the static sealing seat is achieved by bolts passing through the through hole and threadedly cooperating with the threaded hole.

[0011] Preferably, the clutch assembly is fixedly installed with a mounting ear, the cover is provided with a first connecting seat and a second connecting seat, the mounting ear, the first connecting seat and the second connecting seat are all provided with through holes, and the fixed connection between the clutch assembly and the cover is achieved by bolts passing through the mounting ear, the through holes of the first connecting seat and cooperating with nut threads.

[0012] Preferably, the compressor body is fixedly mounted with a mounting seat, the mounting seat is provided with a threaded hole, and the fixed connection between the cover and the compressor body is achieved by bolts passing through the second connecting seat and threadedly cooperating with the mounting seat.

[0013] The beneficial effects of the utility model are:

[0014] 1. The clutch assembly, cover and sealing unit are closely combined to form a compact structure, which is beneficial to reduce the volume and weight of the entire compressor while improving the stability and durability of the structure.

[0015] 2. The combination of sealing cylinder, dynamic ring seat, static sealing seat, spring and rubber sealing ring can effectively prevent refrigerant leakage, ensure that the compressor can continue to work stably under high pressure, and maintain the integrity and efficiency of the refrigeration system.

[0016] 3. The fixing method of bolts and threaded holes simplifies the installation and maintenance process, making the replacement or repair of the shaft seal more convenient and quick, and reducing maintenance costs.

[0017] 4. The connecting ring design on the sealing cover and the parallel threaded through holes on the sealing cylinder improve the interchangeability and adaptability between components, can adapt to compressors of different models, and enhance the application scope of the product.

[0018] 5. The application of the spring provides uniform pressure between the dynamic ring seat and the static seal seat, ensuring the long-term effectiveness of the seal ring and extending the service life of the shaft seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a new type of high-pressure rotary shaft seal structure of an automobile air-conditioning compressor of the utility model;

[0020] Figure 2 This is a cross-sectional schematic diagram of a novel high-pressure rotary shaft seal unit of an automobile air-conditioning compressor of the utility model;

[0021] In the figure: 1. compressor; 101. clutch assembly; 102. cover; 103. compressor body; 104. connecting ring; 2. sealing unit; 201. sealing cylinder; 202. dynamic ring seat; 203. elastic groove; 204. spring; 205. sealing groove; 206. rubber sealing ring; 207. mounting ear; 208. first connecting seat; 209. second connecting seat; 210. mounting seat. DETAILED DESCRIPTION

[0022] A high-pressure rotary shaft seal for an automobile air-conditioning compressor comprises a compressor 1, characterized in that it comprises a sealing unit 2;

[0023] The compressor 1 includes a clutch assembly 101, which is fixedly connected to a cover 102. The cover 102 is provided with a through hole, which is located at the center of the cover 102 and penetrates the cover 102. The cover 102 is provided with a connecting ring 104, which is located at the center and has a threaded hole. The output shaft of the clutch assembly 101 passes through the through hole and is connected to the internal device of the compressor 1, and the cover 102 is fixedly connected to the compressor 1 body; the clutch assembly 101 is fixedly installed with a mounting ear 207, and the cover 102 is provided with a first connecting seat 208 and a second connecting seat 209, and the mounting ear 207, the first connecting seat 208, and the second connecting seat 209 are all provided with through holes, and the fixed connection between the clutch assembly 101 and the cover 102 is completed by bolts passing through the through holes of the mounting ear 207 and the first connecting seat 208 and matching with the nut thread. The compressor 1 body is fixedly mounted with a mounting seat 210 , and the mounting seat 210 is provided with a threaded hole. The fixed connection between the cover 102 and the compressor 1 body is achieved by bolts passing through the second connecting seat 209 and threadedly engaging with the mounting seat 210 .

[0024] The sealing unit 2 includes a sealing cylinder 201 and a dynamic ring seat 202. The sealing cylinder 201 is fixedly connected to the sealing cover 102. The sealing cylinder 201 is close to the end of the compressor 1 body. The sealing cylinder 201 is a cavity. The inner arm of the sealing cylinder 201 is fixedly installed with a static sealing seat. The static sealing seat is provided with an elastic groove 203. A spring 204 is installed in the elastic groove 203. One end of the spring 204 is close to the connecting ring 104, and the other end of the spring 204 is close to the dynamic ring seat 202. The dynamic ring seat 202 is fixedly connected to the output shaft of the clutch assembly 101. The gap between the dynamic ring seat 202 and the static sealing seat forms a sealing groove 205. The sealing groove 205 is installed with a rubber sealing ring 206. The sealing cylinder 201 is provided with a threaded through hole, and the threaded through hole is parallel to the threaded hole. The fixed connection between the sealing cylinder 201 and the sealing cover 102 is completed by bolts passing through the through hole and threadedly matching with the threaded hole. The sealing cylinder 201 is provided with a threaded through hole, and the static sealing seat is provided with a threaded hole. The fixed connection between the sealing cylinder 201 and the static sealing seat is completed by bolts passing through the through hole and threadedly cooperating with the threaded hole.

Claims

1. A high-pressure rotary shaft seal for an automobile air-conditioning compressor, comprising a compressor (1) characterized in that: comprising a sealing unit (2); The compressor (1) comprises a clutch assembly (101), wherein the clutch assembly (101) is fixedly connected to a cover (102), the cover (102) is provided with a through hole, the through hole is located at the center of the cover (102), the through hole passes through the cover (102), the output shaft of the clutch assembly (101) passes through the through hole and is connected to a device inside the compressor (1), and the cover (102) is fixedly connected to the compressor (1); The sealing unit (2) comprises a sealing cylinder (201) and a dynamic ring seat (202); the sealing cylinder (201) is fixedly connected to the sealing cover (102); the sealing cylinder (201) is in close contact with the end of the compressor (1); the sealing cylinder (201) is a cavity; a static sealing seat is fixedly installed on the inner arm of the sealing cylinder (201); an elastic groove (203) is provided in the static sealing seat; a spring (204) is installed in the elastic groove (203); the dynamic ring seat (202) is fixedly connected to the output shaft of the clutch assembly (101); a sealing groove (205) is formed in the gap between the dynamic ring seat (202) and the static sealing seat; a rubber sealing ring (206) is installed in the sealing groove (205).

2. The high-pressure rotary shaft seal for an automobile air-conditioning compressor according to claim 1, characterized in that: The sealing cover (102) is provided with a connecting ring (104), the connecting ring (104) is located at the center, and the connecting ring (104) is provided with a threaded hole.

3. The high-pressure rotary shaft seal for an automobile air-conditioning compressor according to claim 1, characterized in that: The sealing cylinder (201) is provided with a threaded through hole, and the threaded through hole is parallel to the threaded hole. The sealing cylinder (201) and the sealing cover (102) are fixedly connected by bolts passing through the through hole and threadedly engaging with the threaded hole.

4. The high-pressure rotary shaft seal for an automobile air-conditioning compressor according to claim 1, characterized in that: One end of the spring (204) is in close contact with the connecting ring (104), and the other end of the spring (204) is in close contact with the moving ring seat (202).

5. The high-pressure rotary shaft seal for an automobile air-conditioning compressor according to claim 1, characterized in that: The sealing cylinder (201) is provided with a threaded through hole, and the static sealing seat is provided with a threaded hole. The fixed connection between the sealing cylinder (201) and the static sealing seat is achieved by passing a bolt through the through hole and threadedly cooperating with the threaded hole.

6. The high-pressure rotary shaft seal for an automobile air-conditioning compressor according to claim 1, characterized in that: The clutch assembly (101) is fixedly mounted with a mounting ear (207), and the cover (102) is provided with a first connecting seat (208) and a second connecting seat (209). The mounting ear (207), the first connecting seat (208), and the second connecting seat (209) are all provided with through holes. The fixed connection between the clutch assembly (101) and the cover (102) is achieved by bolts passing through the through holes of the mounting ear (207) and the first connecting seat (208) and cooperating with nut threads.

7. The high-pressure rotary shaft seal for an automobile air-conditioning compressor according to claim 1, characterized in that The compressor (1) body is fixedly mounted with a mounting seat (210), and the mounting seat (210) is provided with a threaded hole. The fixed connection between the cover (102) and the compressor (1) body is achieved by bolts passing through the second connecting seat (209) and threadedly cooperating with the mounting seat (210).

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