High-sealing and high-performance automobile air conditioner liquid accumulator

By introducing an H-type filter and sealing structure into the automotive air conditioning receiver, the problem of insufficient filtration area was solved, achieving efficient filtration and improved sealing, thus extending service life.

CN223976255UActive Publication Date: 2026-03-06ZHEJIANG JIAXIN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The limited filtration area of ​​existing automotive air conditioning receivers results in low filtration efficiency and short service life.

Method used

An H-type filter is adopted, including an H-shaped filter cover and a desiccant, which increases the refrigerant and filtration area. The filter is sealed with the liquid delivery pipe through the through holes of the H-shaped filter cover, and the sealing performance is improved by combining the lower sealing gasket and the T-shaped sealing gasket, so as to ensure effective filtration and liquid storage capacity of gaseous refrigerant.

Benefits of technology

It improves filtration efficiency, extends service life, ensures sealing, prevents refrigerant leakage, and enhances overall performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN223976255U_ABST
Patent Text Reader

Abstract

The utility model provides a high-sealing high-performance automobile air conditioner liquid accumulator which comprises a tank body, a liquid conveying pipe is fixedly installed in the tank body through an upper end cover, an H-shaped filter is fixedly installed outside the liquid conveying pipe in a sleeved mode, and the H-shaped filter is located in the tank body. The upper end cover is fixedly mounted at the top end of the tank body; through the arrangement of the H-shaped filter, after a gas refrigerant enters the tank body through the refrigerant inlet and the liquid inlet, the contact area between the gas refrigerant and the refrigerant can be increased, the filtering efficiency is improved, meanwhile, the slag storage capacity is high, and the service life is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning liquid receivers, and in particular to a high-sealing, high-performance automotive air conditioning liquid receiver. Background Technology

[0002] The automotive air conditioning receiver-drier, also known as a liquid receiver-drier, is an important component installed in the air conditioning evaporator and compressor suction pipe. Its main functions include storage, gas-liquid separation, filtration, noise reduction, and refrigerant buffering. Specifically, it stores high-pressure liquid refrigerant from the condenser and supplies it to the expansion valve and evaporator as needed to compensate for minor leaks in the refrigeration system. Simultaneously, it adsorbs moisture in the system and filters out impurities or dirt to ensure the system's normal operation.

[0003] However, existing automotive air conditioning receivers have a cylindrical structure, which limits the filtration area during the filtration process. This not only affects filtration efficiency but also results in a smaller filtration surface and a shorter service life.

[0004] Therefore, it is essential to invent a high-sealing, high-performance automotive air conditioning receiver. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-sealing and high-performance automotive air conditioning liquid reservoir, including a tank body. An infusion pipe is fixedly installed inside the tank body through an upper end cover, and an H-type filter is fixedly installed outside the infusion pipe. The H-type filter is located inside the tank body; the upper end cover is fixedly installed at the top of the tank body.

[0006] Preferably, the H-type filter includes an H-shaped filter cover, a desiccant, and a through hole, wherein the H-shaped filter cover is filled with a desiccant, and a through hole is provided through the center of the H-shaped filter cover; the H-shaped filter cover is sealed and fixed to the infusion tube through the through hole, and the bottom end of the infusion tube is located below the inside of the H-shaped filter cover.

[0007] Preferably, a lower sealing gasket is provided between the bottom of the H-shaped filter cover and the bottom surface inside the tank, and the height of the H-shaped filter cover plus the height of the lower sealing gasket is the same as the height of the internal cavity of the tank.

[0008] Preferably, the top of the tank is provided with an integrated connection port, and the connection port is threadedly fixed to the upper end cap; the diameter of the connection port is smaller than the diameter of the tank, and the inner diameter of the connection port is smaller than the inner diameter of the tank.

[0009] Preferably, the top surface of the connection port is provided with an annular groove, and a T-shaped sealing gasket is fixedly installed in the annular groove.

[0010] Preferably, the upper part of the upper end cover is provided with a refrigerant outlet, a refrigerant inlet, a fusible plug and an observation window, and the refrigerant outlet is connected to the top of the infusion tube, and the observation window is coaxial with the infusion tube; the refrigerant inlet is connected to the inside of the tank through the upper end cover.

[0011] Preferably, a connecting ring is coaxially fixedly installed inside the upper end cover, and a liquid inlet is opened inside the upper end cover, which is located in the connecting ring; the diameter of the connecting ring is smaller than the inner diameter of the upper end cover, and the inner diameter of the connecting ring is larger than the diameter of the liquid delivery tube; the liquid inlet is connected to the refrigerant inlet; the connecting ring is threadedly fixedly connected to the inner side of the connecting port.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes an H-type filter. After the gaseous refrigerant enters the tank through the refrigerant inlet and liquid inlet, the H-type filter increases the contact area with the refrigerant, improving filtration efficiency. It also has a high slag storage capacity, extending its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the full cross-sectional structure of the tank body of this utility model.

[0016] Figure 3 This is an exploded structural diagram of the present invention.

[0017] Figure 4 This is a partially enlarged structural diagram of point A of this utility model.

[0018] In the picture:

[0019] 1. Tank body, 2. Top cover, 3. H-shaped filter cover, 4. Desiccant, 5. Through hole, 6. Lower sealing gasket, 7. Infusion pipe, 8. Connection port, 9. T-shaped sealing gasket, 10. Refrigerant outlet, 11. Refrigerant inlet, 12. Fusible plug, 13. Observation window, 14. Connecting ring, 15. Liquid inlet, 16. Circular groove. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Example:

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides a high-sealing, high-performance automotive air conditioning refrigerant receiver, including a tank body 1. A delivery pipe 7 is fixedly installed inside the tank body 1 via an upper end cover 2, so that the refrigerant filtered inside the tank body 1 can be discharged through the refrigerant outlet 10 via the delivery pipe 7. An H-type filter is fixedly installed on the outside of the delivery pipe 7. The H-type filter is designed to increase the contact area with the gaseous refrigerant, thereby improving the filtration performance and anti-clogging ability. The H-type filter is located inside the tank body 1. The upper end cover 2 is fixedly installed on the top of the tank body 1 by welding.

[0025] In this embodiment, the H-type filter includes an H-shaped filter cover 3, a desiccant 4, and a through hole 5. The H-shaped filter cover 3 is filled with a desiccant 4 to intercept impurities in the gaseous refrigerant entering the tank 1 and to adsorb moisture in the gaseous refrigerant. The H-shaped filter cover 3 has a through hole 5 at its center. The H-shaped filter cover 3 is sealed and fixed to the infusion pipe 7 through the through hole 5, and the bottom end of the infusion pipe 7 is located below the inside of the H-shaped filter cover 3. The upper cavity of the H-shaped filter cover 3 increases the contact area with the gaseous refrigerant and prolongs the filtration time, while the lower cavity does not encroach on the internal volume of the tank 1, thus not affecting the liquid storage capacity of the tank 1.

[0026] In this embodiment, a lower sealing gasket 6 is provided between the bottom of the H-shaped filter cover 3 and the bottom surface inside the tank 1. The lower sealing gasket 6 prevents unfiltered gaseous refrigerant from directly entering the infusion pipe 7. The height of the H-shaped filter cover 3 plus the height of the lower sealing gasket 6 is the same as the height of the internal cavity of the tank 1, so as to improve the overall filtration area and service life.

[0027] In this embodiment, the top of the tank body 1 is provided with an integral connection port 8. The connection port 8 is provided so that the tank body 1 and the upper end cover 2 can be positioned and welded, and the sealing between the tank body 1 and the upper end cover 2 can be improved. The connection port 8 is threadedly fixed to the upper end cover 2. The diameter of the connection port 8 is smaller than the diameter of the tank body 1, and the inner diameter of the connection port 8 is smaller than the inner diameter of the tank body 1.

[0028] In this embodiment, an annular groove 16 is provided on the top surface of the connection port 8. The annular groove 16 is provided to ensure the stability of the T-shaped sealing gasket 9. The T-shaped sealing gasket 9 is fixedly installed in the annular groove 16 to ensure the sealing between the connection port 8 and the upper end cover 2.

[0029] In this embodiment, a refrigerant outlet 10, a refrigerant inlet 11, a fusible plug 12, and an observation window 13 are respectively provided on the upper part of the outer side of the upper end cover 2. The refrigerant outlet 10 is connected to the top of the infusion pipe 7, and the observation window 13 is coaxial with the infusion pipe 7. The refrigerant inlet 11 is connected to the inside of the tank body 1 through the upper end cover 2.

[0030] In this embodiment, a connecting ring 14 is coaxially fixedly installed inside the upper end cover 2, and a liquid inlet 15 is opened inside the upper end cover 2, which is located in the connecting ring 14; the diameter of the connecting ring 14 is smaller than the inner diameter of the upper end cover 2, and the inner diameter of the connecting ring 14 is larger than the diameter of the liquid delivery pipe 7; the liquid inlet 15 is connected to the refrigerant inlet 11; the connecting ring 14 is threadedly fixedly connected to the inner side of the connecting port 8. Through the arrangement between the upper end cover 2 and the connecting ring 14 and the connecting port 8, even if the weld between the upper end cover 2 and the tank body 1 breaks, the sealing between the upper end cover 2 and the tank body 1 can still be guaranteed, preventing refrigerant leakage, thereby making the whole system safer and more reliable.

[0031] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high seal high performance automotive air conditioning accumulator characterized by: The utility model provides a kind of infusion bottle, including tank (1), the infusion tube (7) is fixedly installed in tank (1) inside by upper end cap (2), and infusion tube (7) is fixedly installed with H type filter outside, and the H type filter is in tank (1) inside;The upper end cap (2) is fixedly installed at the top of tank (1).

2. The high seal high performance automotive air conditioning accumulator of claim 1, wherein: The H type filter includes H cylinder filter cover (3), desiccant (4) and through-hole (5), and H cylinder filter cover (3) is filled with desiccant (4) inside, and through-hole (5) is provided at the center of the H cylinder filter cover (3); The H cylinder filter cover (3) is sealed and fixed on infusion tube (7) by through-hole (5), and the bottom end of infusion tube (7) is below the H cylinder filter cover (3) inside.

3. The high seal high performance automotive air conditioning accumulator of claim 2, wherein: The bottom of the H cylinder filter cover (3) is provided with a lower sealing pad (6) between the bottom surface inside the tank (1).

4. The high seal high performance automotive air conditioning reservoir of claim 1 wherein: The top of the tank (1) is provided with an integrated connecting port (8), and the connecting port (8) is threadedly connected with the upper end cap (2).

5. The high seal high performance automotive air conditioning reservoir of claim 4 wherein: The top of the connecting port (8) is provided with a ring groove (16), and a T-shaped sealing pad (9) is fixedly installed in the ring groove (16).

6. The high seal high performance automotive air conditioning reservoir of claim 1 wherein: The upper end cap (2) is provided with a refrigerant outlet (10), a refrigerant inlet (11), a fusible plug (12) and an observation window (13) above the outside, and the refrigerant outlet (10) is communicated with the top of the infusion tube (7); The refrigerant inlet (11) is communicated with the inside of the tank (1) through the upper end cap (2).

7. The high seal high performance automotive air conditioning accumulator of claim 6 wherein: The inside of the upper end cap (2) is coaxially fixedly installed with a connecting ring (14), and the inside of the upper end cap (2) is provided with a liquid inlet (15), which is in the connecting ring (14); The liquid inlet (15) is communicated with the refrigerant inlet (11); The connecting ring (14) is threadedly connected with the inner side of the connecting port (8).