Compressor shell with liquid storage function

Abstract

The invention discloses a compressor shell with a liquid storage function, and belongs to the technical field of whole vehicle thermal management systems, the compressor shell comprises a compressor suction cavity, a compressor exhaust cavity and a compressor cylinder body, and a liquid storage tank and / or a refrigerant channel are / is integrally formed on the compressor cylinder body; compared with a traditional compressor and pipeline scheme, the scheme has the main advantages that the pipelines are directly and integrally integrated in the shell in the compressor shell in a casting design or machining mode and the like, the space of the compressor shell can be greatly utilized for reducing weight and cost, due to pipeline integration, the pipeline path is shortened, and the cost is reduced. The flow resistance and the leakage rate of air conditioner refrigerants are reduced, system energy consumption is reduced, due to the fact that the compressor shell is integrally designed, the liquid storage function can be designed in the compressor shell, and the number of parts is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle thermal management systems, and in particular relates to a compressor housing with a liquid storage function. Background Art

[0002] With the development of electric and hybrid vehicles, the thermal management system of the whole vehicle has been developing in the direction of integration, but the connection between heat exchangers and compressors is still mainly based on air conditioning pipes. Automobile air conditioning pipes are responsible for transporting refrigerant and circulating it between various components to achieve the functions of cooling and heating. The pipeline forms a closed channel, connecting the compressor, condenser, expansion valve, evaporator and other components. The refrigerant flows along the pipeline under the action of pressure, changes state in different components, and completes heat exchange.

[0003] The existing air conditioning system is designed to connect the pipe from the compressor outlet to the condenser, and then from the condenser through the liquid receiver, the expansion valve connects the pipe to the evaporator. The compressor housing is connected to the outside of the connecting pipe for installation, which occupies a large space and requires a lot of manpower for tightening and installation operations, resulting in high labor costs.

[0004] To this end, the present invention proposes a compressor housing with a liquid storage function. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing air conditioning system is designed to connect the pipeline from the compressor outlet to the condenser, and then from the condenser through the liquid storage device, the expansion valve connects the pipeline to the evaporator. The compressor housing is connected and installed outside the connecting pipeline, which occupies a large space and requires a large amount of manpower for tightening and installation operations, resulting in high labor costs. A compressor housing with a liquid storage function is proposed.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solution: a compressor housing with a liquid storage function, comprising a compressor suction chamber, a compressor exhaust chamber and a compressor cylinder body, and a liquid storage tank and / or a refrigerant channel are integrally formed on the compressor cylinder body.

[0007] As a further description of the above technical solution: The compressor housing also includes a chiller and a water-cooled condenser. The compressor suction chamber is connected to the chiller, and the compressor exhaust chamber is connected to the water-cooled condenser. The chiller and the water-cooled condenser are arranged on both sides of the compressor housing and are welded or detachably sealed to the compressor.

[0008] As a further description of the above technical solution: A top cover is fixed on the top of the compressor cylinder body, a refrigerant interface connected to the liquid storage tank line is arranged on the top of the top cover, a sealing cover is threadedly connected to the refrigerant interface, and a controller is fixed on the top of the top cover.

[0009] As a further description of the above technical solution: The liquid storage tank adopts a drying bottle or a gas-liquid separator.

[0010] As a further description of the above technical solution: An expansion valve is provided on the top of the top cover or on the compressor housing to throttle and reduce the pressure of the refrigerant, so that the refrigerant is converted from a high-temperature and high-pressure liquid to a low-temperature and low-pressure liquid.

[0011] As a further description of the above technical solution: A temperature sensor is provided on the top of the top cover or on the compressor housing to detect the temperature of the air-conditioning system and provide temperature data to the control system to achieve precise adjustment of the cooling effect.

[0012] As a further description of the above technical solution: A pressure sensor is provided on the top of the top cover or on the compressor housing to measure the pressure of the refrigerant in the air conditioning pipeline to ensure that the refrigerant operates within a safe pressure range.

[0013] As a further description of the above technical solution: A refrigerant leakage sensor is installed on the top or shell of the compressor to monitor whether there is refrigerant leakage in real time. Once a leakage is detected, an alarm signal will be issued in time.

[0014] As a further description of the above technical solution: A liquid storage channel is arranged inside the liquid storage tank, and the refrigerant channel is connected to the liquid storage tank.

[0015] As a further description of the above technical solution: At least two shock-absorbing pads are installed at the bottom of the compressor.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Compared with the traditional compressor and pipeline solutions, the main advantage of this solution is that the pipeline is directly integrated into the compressor casing through casting design or machining, which can greatly utilize the space of the compressor casing to reduce weight and cost.

[0017] 2. The expansion valve, stop valve and sensor originally installed in the air conditioning pipeline can also be installed through the reserved interface.

[0018] 3. Due to pipeline integration, the pipeline path is shortened, the flow resistance and leakage of air-conditioning refrigerant are reduced, and the system energy consumption is reduced.

[0019] 4. Due to the integrated design of the compressor housing, the liquid storage function can be designed into the compressor housing, reducing the number of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a compressor housing with a liquid storage function proposed by the present invention.

[0021] Figure 2 This is a cross-sectional schematic diagram of a compressor housing with a liquid storage function proposed by the present invention.

[0022] Legend: 1. Chiller; 2. Compressor suction chamber; 3. Compressor exhaust chamber; 4. Water-cooled condenser; 5. Top cover; 6. Controller; 7. Temperature sensor; 8. Expansion valve; 9. Pressure sensor; 10. Shock absorber pad; 11. Refrigerant interface; 12. Liquid storage tank; 13. Refrigerant channel; 14. Liquid storage channel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-2 The present invention provides a technical solution: a compressor housing with a liquid storage function, comprising a compressor suction chamber 2, a compressor exhaust chamber 3 and a compressor cylinder body, a liquid storage tank 12 and / or a refrigerant channel 13 are integrally formed on the compressor cylinder body, a top cover 5 is fixed on the top of the compressor cylinder body, a refrigerant interface 11 connected to the liquid storage tank 12 is provided on the top of the top cover 5, a sealing cover is threadedly connected to the refrigerant interface 11, a liquid storage channel 14 is provided inside the liquid storage tank 12, one end of the refrigerant channel 13 is connected to the liquid storage tank 12, and the other end is connected to the water-cooled condenser 4, the refrigerant channel 13 is used for the connection between the chiller 1 and the water-cooled condenser 4, it is worth noting that the refrigerant channel 13 and the liquid storage channel 14 can be machined.

[0025] In a specific embodiment of the present invention, Figure 1 and Figure 2As shown, the compressor housing also includes chiller 1 and water-cooled condenser 4, the compressor suction chamber 2 is connected to chiller 1, the compressor exhaust chamber 3 is connected to the water-cooled condenser 4, and chiller 1 and water-cooled condenser 4 are arranged on both sides of the compressor housing, and are welded or detachably sealed to the compressor. chiller 1 and water-cooled condenser 4 are arranged on both sides of the compressor, and are welded or detachably sealed to the compressor; specifically, the exhaust hole of chiller 1 is connected to the intake hole of the compressor suction chamber 2 by welding or detachably sealed; the air inlet of the water-cooled condenser 4 is connected to the exhaust hole of the compressor exhaust chamber 3 by welding or detachably sealed.

[0026] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, a controller 6 is fixed on the top of the top cover 5 .

[0027] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the liquid storage tank 12 adopts a drying bottle or a gas-liquid separator. The drying bottle mainly has the functions of drying, filtering, storing liquid and delivering the bottom liquid refrigerant to the evaporator. It can absorb the moisture in the refrigerant to prevent the water from freezing and blocking the pipeline; filter impurities and protect system components; store a certain amount of refrigerant to adjust the buffer; and deliver the bottom liquid refrigerant to the evaporator to ensure refrigeration; the role of the gas-liquid separator is to achieve gas-liquid separation and a certain amount of liquid storage. It can effectively separate the gaseous and liquid components in the refrigerant, prevent the liquid refrigerant from entering the compressor and causing damage, and store liquid refrigerant at the same time to balance the flow and pressure fluctuations of the refrigerant in the system; generally, there is only one drying bottle or one gas-liquid separator in a system.

[0028] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, an expansion valve 8 is provided on the top of the top cover 5 or the compressor housing, which is used to throttle and reduce the pressure of the refrigerant, so that the refrigerant is converted from a high-temperature and high-pressure liquid to a low-temperature and low-pressure liquid, creating conditions for heat absorption and refrigeration in the evaporator. The expansion valve 8 adopts a thermal expansion valve or an electronic expansion valve. The thermal expansion valve relies on a temperature sensing package to sense temperature changes and adjusts the valve opening by internal pressure. The electronic expansion valve collects parameters such as temperature and pressure through sensors, and the valve opening is accurately controlled by the control system. The specific connection is: usually one end is connected to the pipeline at the outlet of the water-cooled condenser 4, and the other end is connected to the pipeline at the inlet of chiller 1.

[0029] In a specific embodiment of the present invention, Figure 1 and Figure 2As shown, a temperature sensor 7 is provided on the top of the top cover 5 or the compressor housing to detect the temperature of the air conditioning system and provide temperature data to the control system to achieve accurate adjustment of the cooling effect. The temperature sensor 7 is generally installed at important pressure monitoring points such as the compressor inlet and outlet, the condenser inlet and outlet, etc., by using components such as thermistors and thermocouples, whose resistance value or potential difference changes with temperature.

[0030] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, a pressure sensor 9 is provided on the top of the top cover 5 or the compressor housing, which is used to measure the pressure of the refrigerant in the air conditioning pipeline to ensure that the refrigerant operates within a safe pressure range. The pressure acts on the elastic element inside the sensor to deform it, and the pressure change is converted into an electrical signal output through a corresponding conversion mechanism. It is generally installed at important pressure monitoring points such as the compressor inlet and outlet, and the condenser inlet and outlet.

[0031] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, a refrigerant leakage sensor is installed on the top of the compressor or on the compressor housing to monitor whether there is refrigerant leakage in real time. Once a leakage is detected, an alarm signal is issued in time. It works based on the detection of refrigerant molecules, the perception of pressure changes, or other physical or chemical properties related to refrigerant leakage. It is usually installed in places where refrigerant leakage is prone to occur, such as pipeline interfaces, near valves, etc.

[0032] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, at least two shock-absorbing pads 10 are installed at the bottom of the compressor to reduce vibration of the compressor and effectively reduce noise.

[0033] It is also worth mentioning that the compressor is equipped with a stop valve, which is mainly used to cut off or connect the flow of refrigerant in the air conditioning pipeline, and plays an important role in the installation, repair and maintenance of the system. It is generally installed at the branch of the pipeline, the position that needs to be cut off, or the key control node.

[0034] Compared with traditional compressor and pipeline solutions, the main advantage of this solution is that the pipeline is directly integrated into the compressor casing through casting design or machining, which can greatly utilize the space of the compressor casing to reduce weight and cost.

[0035] The expansion valve, stop valve and sensor originally installed in the air conditioning pipeline can also be installed through the reserved interface.

[0036] Due to pipeline integration, the pipeline path is shortened, the flow resistance and leakage of air-conditioning refrigerant are reduced, and the system energy consumption is reduced.

[0037] Due to the integrated design of the compressor housing, the liquid storage function can be designed into the compressor housing, reducing the number of parts.

[0038] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compressor housing with a liquid storage function, comprising a compressor suction chamber (2), a compressor exhaust chamber (3) and a compressor cylinder, characterized in that: A liquid storage tank (12) and / or a refrigerant channel (13) are integrally formed on the compressor cylinder body.

2. A compressor housing with liquid storage function according to claim 1, characterized in that: The compressor housing further comprises a chiller (1) and a water-cooled condenser (4); the compressor suction chamber (2) is connected to the chiller (1), and the compressor exhaust chamber (3) is connected to the water-cooled condenser (4); the chiller (1) and the water-cooled condenser (4) are arranged on both sides of the compressor housing and are welded or detachably sealed to the compressor.

3. A compressor housing with liquid storage function according to claim 1, characterized in that: A top cover (5) is fixed on the top of the compressor cylinder body, a refrigerant interface (11) connected to a liquid storage tank (12) is provided on the top of the top cover (5), a sealing cover is threadedly connected to the refrigerant interface (11), and a controller (6) is fixed on the top of the top cover (5).

4. A compressor housing with liquid storage function according to claim 1, characterized in that: The liquid storage tank (12) is a drying bottle or a gas-liquid separator.

5. The compressor housing with liquid storage function according to claim 3, characterized in that: An expansion valve (8) is provided on the top of the top cover (5) or on the compressor housing, and is used to throttle and reduce the pressure of the refrigerant, so that the refrigerant is converted from a high-temperature and high-pressure liquid to a low-temperature and low-pressure liquid.

6. The compressor housing with liquid storage function according to claim 3, characterized in that: A temperature sensor (7) is provided on the top of the top cover (5) or on the compressor housing, and is used to detect the temperature of the air conditioning system and provide temperature data to the control system, so as to achieve accurate adjustment of the refrigeration effect.

7. A compressor housing with liquid storage function according to claim 3, characterized in that: A pressure sensor (9) is provided on the top of the top cover (5) or on the compressor housing, and is used to measure the pressure of the refrigerant in the air-conditioning pipeline to ensure that the refrigerant operates within a safe pressure range.

8. The compressor housing with liquid storage function according to claim 1, characterized in that: A refrigerant leakage sensor is provided on the top or shell of the compressor to monitor in real time whether there is refrigerant leakage. Once a leakage is detected, an alarm signal is issued in time.

9. The compressor housing with liquid storage function according to claim 1, characterized in that: A liquid storage channel (14) is provided inside the liquid storage tank (12), and the refrigerant channel (13) is connected to the liquid storage tank (12).

10. The compressor housing with liquid storage function according to claim 1, characterized in that: At least two shock-absorbing pads (10) are installed at the bottom of the compressor.

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