High-pressure liquid storage tank of vehicle-mounted air conditioner
By designing a vehicle air conditioning high-pressure reservoir that is easy to disassemble, the problems of cumbersome disassembly and high maintenance costs in the existing technology are solved. It enables convenient repair and replacement when there is partial damage, reduces maintenance costs and improves connection reliability.
Patent Information
- Application Number
- CN202520398423.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-07
AI Technical Summary
When existing vehicle air conditioning high-pressure coolant tanks malfunction or require desiccant replacement, disassembly and repair are cumbersome, resulting in high repair costs and the inconvenience of replacing only partially damaged parts when the entire system needs to be replaced.
A vehicle-mounted air conditioning high-pressure liquid storage tank, comprising a first tank and a second tank, is designed. It can be easily disassembled through a connecting mechanism and a limiting mechanism, allowing for the replacement of partial components and avoiding the need for complete replacement.
It enables convenient maintenance and replacement operations, reduces maintenance costs, and improves connection reliability and sealing performance.
Smart Images

Figure CN223939697U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of liquid storage tank technology, specifically relating to a high-pressure liquid storage tank for vehicle air conditioning. Background Technology
[0002] The vehicle air conditioning system is used to regulate the temperature, humidity, and air quality inside the vehicle to ensure driving comfort. It consists of: a compressor to compress the refrigerant and circulate it in the system; a condenser to dissipate heat and cool the high-temperature, high-pressure gaseous refrigerant into a liquid state; a receiver-drier to store the refrigerant, filter impurities, and absorb moisture; an expansion valve to regulate the refrigerant flow and reduce its pressure and temperature; an evaporator to absorb heat from the vehicle interior, causing the refrigerant to evaporate and lower the interior temperature; and a blower to blow cool air into the vehicle.
[0003] The high-pressure liquid receiver tank of the vehicle air conditioner is an important component of the automotive air conditioning system. It is mainly used to store refrigerant and plays a role in gas-liquid separation, filtering impurities, and buffering pressure fluctuations.
[0004] When a fault occurs inside the reservoir or the desiccant needs to be replaced, the entire reservoir needs to be removed from the vehicle for repair or replacement and then reinstalled. This process is cumbersome, time-consuming, and labor-intensive. If a one-piece reservoir is partially damaged, the entire reservoir often needs to be replaced, increasing maintenance costs. To address this, we have designed a vehicle air conditioning high-pressure reservoir to provide an alternative technical solution to the above-mentioned problems. Utility Model Content
[0005] The purpose of this utility model is to provide a high-pressure liquid storage tank for vehicle air conditioning, so as to solve the problems in the use of the existing technology mentioned in the background.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a vehicle air conditioning high-pressure liquid storage tank, comprising a liquid storage tank body, the liquid storage tank body comprising a first tank body and a second tank body, the second tank body being located at the bottom of the first tank body, a refrigerant charging pipe being provided at one end of the top of the first tank body, a gas inlet pipe being provided at the other end of the top of the first tank body, a gas outlet pipe being provided at the top of the first tank body, and a connecting mechanism for connecting the first tank body and the second tank body being provided at the top of the second tank body.
[0007] Preferably, a circular filter screen is provided at the top and bottom of the second tank body, and a desiccant is provided between the two circular filter screens and inside the second tank body. A vertical connecting pipe is provided on the outer side of the bottom of the gas outlet pipe, and the vertical connecting pipe is fixedly connected to the circular filter screen and the desiccant.
[0008] Preferably, the connecting mechanism includes a circular connecting ring, a circular connecting ring fixed to the top of the second tank, a circular rotating ring provided at the top of the circular connecting ring, an external thread provided on the outer side of the first tank, an internal thread adapted to the external thread provided inside the circular rotating ring, and a limiting mechanism for restricting the rotation of the circular rotating ring provided on the outer side of the first tank.
[0009] Preferably, a T-shaped rotating ring is fixed to the bottom of the circular rotating ring, and a T-shaped rotating groove is provided inside the circular connecting ring. The T-shaped rotating ring is located inside the T-shaped rotating groove and is rotatably connected to the circular connecting ring through the T-shaped rotating groove.
[0010] Preferably, a plurality of vertical sliders are fixed on the outer side of the first tank body, and a vertical groove is provided inside the circular connecting ring. The first tank body and the circular connecting ring are slidably connected by the cooperation of the vertical sliders and the vertical groove.
[0011] Preferably, the circular connecting ring has an embedded groove inside that is adapted to the first tank body, and the embedded groove also has a circular sealing ring inside to improve the sealing performance.
[0012] Preferably, the limiting mechanism includes a circular support ring, which is fixed to the outside of the first tank body. A circular lifting ring is provided at the bottom of the circular support ring. Multiple vertical rigid springs are evenly distributed between the circular support ring and the circular lifting ring. Multiple vertical limiting posts are evenly distributed and fixed at the bottom of the circular lifting ring.
[0013] Preferably, the circular lifting ring has a circular through groove inside, and the circular lifting ring is slidably connected to the first tank body through the circular through groove.
[0014] Preferably, the circular rotating ring has a circular limiting groove inside, and the vertical limiting post is located inside the circular limiting groove and is in clearance fit with the circular rotating ring through the circular limiting groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] Through a series of designs, this utility model allows for easy disassembly of the first and second tanks, facilitating maintenance and desiccant replacement within both tanks. In case of partial damage, only the corresponding parts need to be replaced, eliminating the need for complete replacement and reducing maintenance costs. The limiting mechanism effectively prevents the circular rotating ring from rotating, thus facilitating the detachment of the first and second tanks and improving the reliability of the connection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the first tank of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the second tank of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the circular lifting ring and the vertical limiting column of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the circular connecting ring and the circular rotating ring of this utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the circular sealing ring and the T-shaped rotating ring of this utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the circular rotating ring and the vertical limiting post of this utility model.
[0024] In the diagram: 1. First tank; 2. Second tank; 3. Refrigerant charging pipe; 4. Gas inlet pipe; 5. Gas outlet pipe; 6. Circular connecting ring; 7. Circular rotating ring; 8. Circular filter screen; 9. Desiccant; 10. Vertical connecting pipe; 11. Circular lifting ring; 12. Circular support ring; 13. Circular sealing ring; 14. T-shaped rotating ring; 15. Vertical rigid spring; 16. Vertical limiting post. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1-7 A vehicle-mounted air conditioning high-pressure liquid storage tank includes a liquid storage tank body, which includes a first tank body 1 and a second tank body 2. The second tank body 2 is located at the bottom of the first tank body 1. A refrigerant charging pipe 3 is provided at one end of the top of the first tank body 1, a gas inlet pipe 4 is provided at the other end of the top of the first tank body 1, a gas outlet pipe 5 is provided at the top of the first tank body 1, and a connecting mechanism for connecting the first tank body 1 and the second tank body 2 is provided at the top of the second tank body 2.
[0027] The top and bottom of the second tank 2 are equipped with circular filter screens 8. A desiccant 9 is placed between the two circular filter screens 8 and inside the second tank 2. A vertical connecting pipe 10 is provided on the outside of the bottom of the gas outlet pipe 5. The vertical connecting pipe 10 is fixedly connected to the circular filter screens 8 and to the desiccant 9. The circular filter screens 8 and the desiccant 9 are used to filter the gas and prevent particles in the gas from affecting the operation of the vehicle air conditioner.
[0028] The connecting mechanism includes a circular connecting ring 6. The top of the second tank 2 is fixed with a circular connecting ring 6. A circular rotating ring 7 is provided on the top of the circular connecting ring 6. The outer side of the first tank 1 is provided with an external thread. The inner side of the circular rotating ring 7 is provided with an internal thread that matches the external thread. The outer side of the first tank 1 is also provided with a limiting mechanism for restricting the rotation of the circular rotating ring 7. Through the provision of the internal and external threads, the circular rotating ring 7 can be threadedly connected to the outer side of the first tank 1.
[0029] A T-shaped rotating ring 14 is fixed to the bottom of the circular rotating ring 7. A T-shaped rotating groove is opened inside the circular connecting ring 6. The T-shaped rotating ring 14 is located inside the T-shaped rotating groove and is rotatably connected to the circular connecting ring 6 through the T-shaped rotating groove, so that the circular rotating ring 7 can rotate on the top of the circular connecting ring 6.
[0030] Multiple vertical sliders are fixed on the outside of the first tank 1, and a vertical groove is provided inside the circular connecting ring 6. The first tank 1 and the circular connecting ring 6 are slidably connected by the cooperation of the vertical sliders and the vertical groove. By setting the vertical sliders and the vertical groove, the circular connecting ring 6 can slide on the outside of the first tank 1, thereby guiding the second tank 2 to move toward the first tank 1.
[0031] The circular connecting ring 6 has an embedded groove that fits the first tank 1 inside. The embedded groove also has a circular sealing ring 13 for improving the sealing performance. The circular sealing ring 13 improves the sealing performance between the circular connecting ring 6 and the first tank 1, preventing gas leakage between the circular connecting ring 6 and the first tank 1.
[0032] Here, when the second tank 2 needs to be connected to the first tank 1, the circular connecting ring 6 can move toward the first tank 1. By rotating the circular rotating ring 7, the T-shaped rotating ring 14 can rotate inside the circular connecting ring 6. The rotation of the circular rotating ring 7, through the setting of internal and external threads, allows the circular connecting ring 6 to slide on the outside of the second tank 2. When the first tank 1 enters the interior of the circular connecting ring 6, the setting of the circular sealing ring 13 can improve the sealing performance between the first tank 1 and the second tank 2, preventing air leakage between the first tank 1 and the second tank 2.
[0033] The limiting mechanism includes a circular support ring 12, which is fixed to the outside of the first tank body 1. A circular lifting ring 11 is provided at the bottom of the circular support ring 12. Multiple vertical rigid springs 15 are evenly distributed between the circular support ring 12 and the circular lifting ring 11. Multiple vertical limiting posts 16 are evenly distributed and fixed at the bottom of the circular lifting ring 11.
[0034] The circular lifting ring 11 has a circular through groove inside. The circular lifting ring 11 is slidably connected to the first tank 1 through the circular through groove. The circular through groove allows the circular lifting ring 11 to be slidably connected to the outside of the first tank 1. The sliding of the circular lifting ring 11 causes the vertical rigid spring 15 to be compressed by force.
[0035] The circular rotating ring 7 has a circular limiting groove inside. The vertical limiting post 16 is located inside the circular limiting groove and is in clearance fit with the circular rotating ring 7 through the circular limiting groove. By setting the circular limiting groove, the rotation of the circular rotating ring 7 outside the first tank body 1 can be restricted, thereby locking the rotation of the circular rotating ring 7 to prevent the circular rotating ring 7 from rotating during normal operation.
[0036] Here, when it is necessary to connect the second tank 2 to the first tank 1, the circular lifting ring 11 is first pushed upward. The pushing of the circular lifting ring 11 causes the vertical rigid spring 15 to contract under force, allowing the vertical limiting post 16 to slide inside the circular rotating ring 7. When the vertical limiting post 16 can move out of the interior of the circular rotating ring 7, the vertical limiting post 16 releases its restriction on the circular rotating ring 7, allowing the circular rotating ring 7 to rotate. Similarly, when it is necessary to disassemble the second tank 2, the circular lifting ring 11 is pushed upward so that the circular rotating ring 7 can rotate.
[0037] Through a series of designs, the first tank 1 and the second tank 2 can be easily disassembled, facilitating the maintenance and replacement of the desiccant 9 inside the first tank 1 and the second tank 2. When there is partial damage, only the corresponding parts need to be replaced, without replacing the whole tank, which reduces maintenance costs. The limiting mechanism can effectively prevent the circular rotating ring 7 from rotating, thereby facilitating the detachment of the first tank 1 and the second tank 2 and improving the reliability of the connection.
[0038] Working principle: When the second tank 2 needs to be connected to the first tank 1, the circular lifting ring 11 is first pushed upward. The pushing of the circular lifting ring 11 causes the vertical rigid spring 15 to contract under force, allowing the vertical limiting post 16 to slide inside the circular rotating ring 7. When the vertical limiting post 16 can move out of the interior of the circular rotating ring 7, the vertical limiting post 16 releases its restriction on the circular rotating ring 7, allowing the circular rotating ring 7 to rotate. Similarly, when the second tank 2 needs to be disassembled, the circular lifting ring 11 is pushed upward so that the circular rotating ring 7 can rotate.
[0039] When the second tank 2 needs to be connected to the first tank 1, the circular connecting ring 6 can move toward the first tank 1. By rotating the circular rotating ring 7, the T-shaped rotating ring 14 can rotate inside the circular connecting ring 6. The rotation of the circular rotating ring 7, through the setting of internal and external threads, allows the circular connecting ring 6 to slide on the outside of the second tank 2. When the first tank 1 enters the interior of the circular connecting ring 6, the setting of the circular sealing ring 13 can improve the sealing performance between the first tank 1 and the second tank 2, preventing air leakage between the first tank 1 and the second tank 2.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-pressure liquid storage tank for vehicle air conditioning, characterized in that: The system includes a liquid storage tank body, which includes a first tank body (1) and a second tank body (2). The second tank body (2) is located at the bottom of the first tank body (1). A refrigerant charging pipe (3) is provided at one end of the top of the first tank body (1). A gas inlet pipe (4) is provided at the other end of the top of the first tank body (1). A gas outlet pipe (5) is provided at the top of the first tank body (1). A connecting mechanism for connecting the first tank body (1) and the second tank body (2) is provided at the top of the second tank body (2).
2. The vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 1, characterized in that: The top and bottom of the second tank (2) are provided with circular filter screens (8), and a desiccant (9) is provided between the two circular filter screens (8) and inside the second tank (2). A vertical connecting pipe (10) is provided on the outside of the bottom of the gas outlet pipe (5). The vertical connecting pipe (10) is fixedly connected to the circular filter screen (8) and to the desiccant (9).
3. The vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 1, characterized in that: The connecting mechanism includes a circular connecting ring (6), the top of the second tank (2) is fixed with a circular connecting ring (6), the top of the circular connecting ring (6) is provided with a circular rotating ring (7), the outer side of the first tank (1) is provided with an external thread, the inner side of the circular rotating ring (7) is provided with an internal thread adapted to the external thread, and the outer side of the first tank (1) is also provided with a limiting mechanism for restricting the rotation of the circular rotating ring (7).
4. A vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 3, characterized in that: The bottom of the circular rotating ring (7) is fixed with a T-shaped rotating ring (14), and the inside of the circular connecting ring (6) is provided with a T-shaped rotating groove. The T-shaped rotating ring (14) is located inside the T-shaped rotating groove and is rotatably connected to the circular connecting ring (6) through the T-shaped rotating groove.
5. A vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 3, characterized in that: Multiple vertical sliders are fixed on the outside of the first tank (1), and a vertical groove is provided inside the circular connecting ring (6). The first tank (1) and the circular connecting ring (6) are slidably connected by the cooperation of the vertical sliders and the vertical groove.
6. A vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 3, characterized in that: The circular connecting ring (6) has an embedded groove inside that is adapted to the first tank body (1), and the embedded groove also has a circular sealing ring (13) for improving sealing performance.
7. A vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 3, characterized in that: The limiting mechanism includes a circular support ring (12), which is fixed to the outside of the first tank (1). A circular lifting ring (11) is provided at the bottom of the circular support ring (12). A plurality of vertical rigid springs (15) are evenly distributed between the circular support ring (12) and the circular lifting ring (11). A plurality of vertical limiting posts (16) are evenly distributed and fixed at the bottom of the circular lifting ring (11).
8. A vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 7, characterized in that: The circular lifting ring (11) has a circular through groove inside, and the circular lifting ring (11) is slidably connected to the first tank (1) through the circular through groove.
9. A vehicle-mounted air conditioning high-pressure liquid storage tank according to claim 7, characterized in that: The circular rotating ring (7) has a circular limiting groove inside, and the vertical limiting post (16) is located inside the circular limiting groove and is in clearance fit with the circular rotating ring (7) through the circular limiting groove.