Novel efficient thermal management system integrated structure
By adopting the design of the water jacket structure and isolation component to split the cavity in the thermal management system, the problems of large volume, heavy weight and noise pollution of the integrated module are solved, and more efficient thermal management and cost optimization are achieved.
Patent Information
- Application Number
- CN202422003629.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing thermal management system integration module has a large overall volume and heavier weight, severe compressor noise pollution, and high production costs.
It adopts a water jacket structure, built-in compressor and heat exchanger, and divides the water jacket into multiple cavity through isolation parts, uses a refrigerant runner for heat exchange, and integrates a shock absorber pad and a controller to reduce noise and weight and optimize the refrigerant circuit.
大幅降低压缩机噪音,减少系统体积和重量,降低冷媒充注量,降低生产成本,降低冷媒易燃风险,提高换热效率和压缩机功率。
Smart Images
Figure CN223072270U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle thermal management systems, and particularly relates to a novel and efficient integrated structure of a thermal management system. Background Art
[0002] With the popularization of electric vehicles and hybrid vehicles, the vehicle thermal management system is developing towards the direction of integration. Currently, the integrated module mainly integrates the refrigerant and water channels with related components. The main integrated components include valve parts, water coolers, and refrigerating machines, etc. Compared with the previous decentralized layout scheme, this integrated improvement greatly simplifies the previous structural design. However, the above scheme still faces many problems, and the most important one is that the overall volume is relatively large and the weight is relatively heavy.
[0003] Especially for the system that needs to set up a secondary loop, the amount of refrigerant filled is still large. And currently, the noise of the compressor is relatively large. Especially at its high rotational speed, the noise of the compressor will cause noise pollution, so it is criticized by people. If only relying on the conventional compressor body structure for optimization, it is still very difficult to greatly reduce the noise, and the existing technology has reached the limit. At the same time, the production cost of the integrated module is relatively high, especially various refrigerant flow channel plates and pipelines, etc.
[0004] Therefore, the utility model proposes a novel and efficient integrated structure of a thermal management system. Content of the Utility Model
[0005] The purpose of the utility model is to provide a novel and efficient integrated structure of a thermal management system to solve the problems that the overall volume of the current integrated module of the thermal management system is relatively large and the weight is relatively heavy, and the noise of the compressor will cause noise pollution.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A novel and efficient integrated structure of a thermal management system, including a water jacket and a top cover installed on the top of the water jacket. A compressor is arranged inside the water jacket. The compressor has a compressor suction chamber, a compressor discharge chamber, and a compressor cylinder block. The compressor suction chamber is connected to a heat exchanger, and the compressor discharge chamber is connected to a water-cooled condenser.
[0007] A controller, an expansion valve, a pressure sensor, and a temperature sensor are installed on the top of the top cover. At least one shock pad is installed on the inner bottom wall of the water jacket. The bottom of the compressor is in contact with the top of the shock pad.
[0008] As a further description of the above technical scheme:
[0009] A first inlet and a first outlet are arranged on one side of the water jacket close to the heat exchanger. A second inlet and a second outlet are arranged on one side of the water jacket close to the water-cooled condenser.
[0010] As a further description of the above technical solution:
[0011] A first isolation member is vertically arranged inside the water jacket. The first isolation member is in sealed contact with the compressor, dividing the interior of the water jacket into a first water jacket cavity and a second water jacket cavity.
[0012] As a further description of the above technical solution:
[0013] A second isolation member is horizontally arranged inside the water jacket. The second isolation member includes a first partition cavity wall and a second partition cavity wall. The first partition cavity wall divides the first water jacket cavity into an upper and a lower first cavity and a second cavity, and the second partition cavity wall divides the second water jacket cavity into an upper and a lower third cavity and a fourth cavity. The first inlet corresponds to the first cavity, the first outlet corresponds to the second cavity, the second inlet corresponds to the third cavity, and the second outlet corresponds to the fourth cavity.
[0014] As a further description of the above technical solution:
[0015] The first isolation member has a U-shaped structure. A U-shaped groove is formed on the U-shaped inner wall of the first isolation member, and a U-shaped gasket is arranged in the U-shaped groove.
[0016] As a further description of the above technical solution:
[0017] A circulation hole is formed on the first isolation member. The first water jacket cavity and the second water jacket cavity are connected through the circulation hole.
[0018] As a further description of the above technical solution:
[0019] A liquid storage tank and a refrigerant channel are installed on the compressor cylinder block. The liquid storage tank is located inside the water jacket.
[0020] As a further description of the above technical solution:
[0021] A refrigerant interface is arranged on the top of the top cover. The refrigerant interface is connected to the liquid storage tank.
[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:
[0023] 1. The present utility model can significantly reduce the noise of the heat system compressor at high speeds.
[0024] 2. The present utility model further improves the integration degree, reduces the volume of the integrated module, and simultaneously reduces the weight and cost.
[0025] 3. The present utility model isolates the refrigerant circuit and further reduces the risk and potential hazards caused by the flammability of the refrigerant.
[0026] 4. The utility model uses the heat exchange medium in the water jacket and the secondary circuit to wrap all the refrigerant-side components such as the compressor and the heat exchanger, realizing the secondary isolation of the refrigerant. At the same time, it makes full use of the surface area of the heat exchanger to reduce the heat leakage of the compressor and the heat exchanger to the environment. Description of the Drawings
[0027] Figure 1 It is a schematic three-dimensional structure diagram of a new type of high-efficiency heat management system integration structure.
[0028] Figure 2 It is a schematic structure diagram of the water jacket and the first isolation member in a new type of high-efficiency heat management system integration structure.
[0029] Figure 3 It is a schematic structure diagram of the U-shaped groove of the first isolation member in a new type of high-efficiency heat management system integration structure.
[0030] Figure 4 It is a schematic structure diagram of the first isolation member and the second isolation member in a new type of high-efficiency heat management system integration structure.
[0031] Figure 5 It is a top view of a new type of high-efficiency heat management system integration structure.
[0032] Figure 6 It is Figure 5 a sectional view taken along the A-A direction in
[0033] Figure 7 It is Figure 5 a sectional view taken along the B-B direction in
[0034] Legend:
[0035] 1. Water jacket; 101. First inlet; 102. First outlet; 103. Second inlet; 104. Second outlet; 105. First water jacket cavity; 106. Second water jacket cavity; 2. Top cover; 3. First isolation member; 301. U-shaped groove; 302. U-shaped gasket; 4. Second isolation member; 401. First partition cavity wall; 402. Second partition cavity wall; 5. Lift adjustment component; 6. Heat exchanger; 7. Compressor suction cavity; 8. Compressor discharge cavity; 9. Water-cooled condenser; 10. Controller; 11. Expansion valve; 12. Pressure sensor; 13. Temperature sensor; 14. Refrigerant interface; 15. Liquid storage tank. Detailed Embodiment
[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.
[0037] Please refer to Figures 1-7 , the present utility model provides a technical solution: a novel and efficient thermal management system integration structure, including a water jacket 1 and a top cover 2 installed on the top of the water jacket 1. A compressor is arranged inside the water jacket 1. The compressor has a compressor suction chamber 7, a compressor discharge chamber 8 and a compressor cylinder block. The compressor suction chamber 7 is connected to a heat exchanger 6, and the compressor discharge chamber 8 is connected to a water-cooled condenser 9. Specifically, the compressor suction chamber 7 and the heat exchanger 6, and the compressor discharge chamber 8 and the water-cooled condenser 9 are connected by means of threads or welding, etc., so a refrigerant circulation channel can be formed inside. It is also worth noting that the heat exchanger 6 and the water-cooled condenser 8 are not limited to being placed at both ends, sides or upper / lower surfaces of the compressor, and can be specifically set according to requirements. It is also worth noting that on this basis, the present utility model can be extended to a multi-heat exchanger solution.
[0038] In the specific implementation manner of the present utility model, as Figure 1 , as Figure 6 and Figure 7 shown, a first inlet 101 and a first outlet 102 are arranged on one side of the water jacket 1 close to the heat exchanger 6, and a second inlet 103 and a second outlet 104 are arranged on one side of the water jacket 1 close to the water-cooled condenser 9.
[0039] In the specific implementation manner of the present utility model, as Figure 6 and Figure 7 shown, a first partition 3 is vertically arranged inside the water jacket 1. The first partition 3 is in sealed contact with the compressor to divide the inside of the water jacket 1 into a first water jacket cavity 105 and a second water jacket cavity 106. Specifically, the compressor and the water jacket 1 can be sealed by means of rubber, etc. After sealing, the first water jacket cavity 105 and the second water jacket cavity 106 are formed with the first partition 3. The heat exchange medium of the secondary cooling circuit can flow in the water jacket cavity. The heat exchange medium in the first water jacket cavity 105 can fully exchange heat with the heat exchanger 6 and the compressor suction chamber 7, and the heat exchange medium in the second water jacket cavity 106 can fully exchange heat with the water jacket 1 and the compressor discharge chamber 8.
[0040] In the specific implementation manner of the present utility model, as Figure 6 and Figure 7As shown in the figure, a second partition member 4 is horizontally disposed inside the water jacket 1. The second partition member 4 includes a first partition cavity wall 401 and a second partition cavity wall 402. The first partition cavity wall 401 divides the first water jacket cavity 105 into upper and lower first cavities and second cavities. The second partition cavity wall 402 divides the second water jacket cavity 106 into upper and lower third cavities and fourth cavities. The first inlet 101 corresponds to the first cavity, the first outlet 102 corresponds to the second cavity, the second inlet 103 corresponds to the third cavity, and the second outlet 104 corresponds to the fourth cavity. Specifically, the low-temperature coolant enters the first cavity from the first inlet 101, then enters the input end of the heat exchanger 6, flows through the heat exchanger 6, flows out from the output end of the heat exchanger 6 to the second cavity, and finally flows out from the first outlet 102 to achieve heat exchange; the high-temperature coolant enters the third cavity from the second inlet 103, then enters the input end of the water-cooled condenser 9, flows through the water-cooled condenser 9, flows out from the output end of the water-cooled condenser 9 to the fourth cavity, and finally flows out from the second outlet 104 to achieve heat exchange, which can realize that the heat channel and the cold channel are not connected to each other.
[0041] Since the heat exchange medium in the first water jacket cavity 105 wraps the heat exchanger 6, it can fully exchange heat with the low-temperature refrigerant in the heat exchanger 6, thereby reducing the temperature of the heat exchange medium in the first water jacket cavity 105; the first partition cavity wall 401 is provided in the first water jacket cavity 105, making the heat exchange medium flowing through the heat exchanger 6 more uniform, and further improving the heat exchange efficiency.
[0042] Since the heat exchange medium in the second water jacket cavity 106 wraps the water-cooled condenser 9, it can fully exchange heat with the high-temperature refrigerant in the water-cooled condenser 9; an isolation device can be provided in the second water jacket cavity 106 to make the heat exchange medium flowing through the water-cooled condenser 9 more uniform, and further improve the heat exchange efficiency.
[0043] In the specific embodiment of the present invention, as Figure 4 shown, the first partition member 3 has a U-shaped structure. A U-shaped groove 301 is formed on the U-shaped inner wall of the first partition member 3, and a U-shaped gasket 302 is provided in the U-shaped groove 301 to achieve sealing.
[0044] In the specific embodiment of the present invention, a circulation hole (not shown in the figure) is formed on the first partition member 3. The first water jacket cavity 105 and the second water jacket cavity 106 are connected through the circulation hole. The number of circulation holes is one, two, three, four, etc. The circulation hole is a channel for the heat exchange medium of the secondary loop for heat exchange. In this way, there will be a mixing phenomenon between a part of the low-temperature coolant on the left half and the high-temperature coolant on the right half. In this solution, the low-temperature coolant can be heated by the high-temperature coolant at low temperature to increase the compressor speed, thereby improving the heating ability by increasing the compressor motor power.
[0045] In the specific embodiments of the present utility model, as Figure 6 and Figure 7 shown, a liquid storage tank 15 and a refrigerant passage are installed on the compressor cylinder block, and the liquid storage tank 15 is located inside the water jacket 1.
[0046] In the specific embodiments of the present utility model, as Figure 1 shown, a refrigerant interface 14 is provided at the top of the top cover 2, and the refrigerant interface 14 is connected to the liquid storage tank 15.
[0047] In the specific embodiments of the present utility model, as Figure 1 shown, a controller 10, an expansion valve 11, a pressure sensor 12, and a temperature sensor 13 are installed at the top of the top cover 2, and the controller 10 facilitates the control of the module.
[0048] In the specific embodiments of the present utility model, as Figure 1 shown, at least one shock pad 5 is installed on the inner bottom wall of the water jacket 1, and the bottom of the compressor is in contact with the top of the shock pad 5. It should be noted that the shock pad 5 is a single-stage or two-stage shock absorber, which can greatly reduce the vibration transmitted from the compressor to the outside. The vibration isolation scheme can be adjusted according to the NVH requirements of the scheme. Preferably, four shock pads 5 are provided and evenly distributed at the bottom of the compressor.
[0049] Working principle: The water-cooled condenser 9, the compressor exhaust cavity 7, the compressor suction cavity 8, and the heat exchanger 6 are the devices for realizing the refrigerant refrigeration and heating cycle. According to the reverse Carnot cycle principle, the refrigerant in the water-cooled condenser 9 is at a relatively high temperature, and the refrigerant in the heat exchanger 6 is at a relatively low temperature. The low-temperature refrigerant flowing through the heat exchanger 6 can cool the heat exchange medium in the first water jacket cavity 105, and the high-temperature refrigerant of the water-cooled condenser is used to heat the heat exchange medium in the second water jacket cavity 106.
[0050] Since the water-cooled condenser 9, the heat exchanger 6 and the compressor are integrated, and at the same time the liquid storage, the refrigerant passage, each valve and the sensor are integrated with the compressor, the number of parts is reduced and the assembly workload is reduced; thus the overall cost of the machine is reduced; since all the refrigerant circuit components are directly installed on the compressor cylinder block and the refrigerant circuit is integrated with the compressor cylinder block, the internal volume of the relevant refrigerant circuit system is greatly reduced, thereby reducing the refrigerant charge of the system;
[0051] The main body or all of the compressor and its associated components are wrapped by the heat exchange medium water circuit, which greatly reduces the noise of the compressor vibration transmitted to the outside; at the same time, through single-stage or two-stage shock absorption, the vibration transmitted from the compressor body to the outside is greatly reduced;
[0052] In the present utility model, a cooling and heat exchange water medium and a water jacket are added between the refrigerant circuit and the air for further isolation, reducing the risk of leakage of some flammable and explosive refrigerants;
[0053] In the present utility model, the outer shell surfaces of each heat exchanger and the compressor have become available heat exchange surface areas, increasing the heat exchange performance while reducing the heat leakage of the environment.
[0054] Since the low-temperature heat exchange medium cooled in the first water jacket cavity 105 can lead to the vehicle battery and the passenger compartment, thereby cooling the battery and the passenger compartment, or leading to the motor to absorb heat from the environment, and then improving the refrigerant temperature in the water-cooled condenser 9 according to the reverse Carnot cycle principle; since the high-temperature heat exchange medium heated in the second water jacket cavity 106 can lead to the vehicle battery and the passenger compartment, thereby heating the battery and the passenger compartment, or leading to the environment for heat release, and then reducing the refrigerant temperature in the heat exchanger 6 according to the reverse Carnot cycle principle; if a part of the low-temperature heat exchange medium in the first water jacket cavity 105 is communicated with the high-temperature heat exchange medium heated in the second water jacket cavity 106, the heat exchange medium in the second water jacket cavity 106 can be used to heat the heat exchange medium in the first water jacket cavity 105, thereby increasing the low-pressure pressure during the operation of the compressor. Since the low-pressure pressure of the compressor is increased, the rotational speed of the compressor can be increased, thereby increasing the operating power of the compressor. At ultra-low temperatures, the operating power of the compressor can be directly used to heat the battery and the passenger compartment, reducing the use of external heating devices such as PTC. Since the controller 10 can be installed on the top cover 2 and connected to the plates on the first water jacket cavity 105 or the second water jacket cavity 106, the higher-temperature energy in the controller can be taken away by using the heat exchange medium in the cavity, thereby providing thermal protection for the controller. In the present utility model, by independently arranging single, double, three or four cavities for each heat exchanger in the water jacket 1, using the connection between the coolant medium channels and the heat exchangers, and independent operation and other solutions, the heat exchange of the coolant medium can be used to increase the working temperature range and heating capacity of the compressor at low temperatures, or to achieve the functions of independent heating / cooling / independent operation of multiple heat exchangers.
[0055] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.
Claims
1. A novel and efficient integrated structure of a thermal management system, comprising a water jacket (1) and a top cover (2) installed on the top of the water jacket (1), characterized in that: Inside the water jacket (1), a compressor is provided. The compressor has a compressor suction chamber (7), a compressor discharge chamber (8), and a compressor cylinder block. The compressor suction chamber (7) is connected to a heat exchanger (6), and the compressor discharge chamber (8) is connected to a water-cooled condenser (9). On the top of the top cover (2), a controller (10), an expansion valve (11), a pressure sensor (12), and a temperature sensor (13) are installed. On the inner bottom wall of the water jacket (1), at least one shock pad (5) is installed, and the bottom of the compressor is in contact with the top of the shock pad (5).
2. A novel and efficient thermal management system integration structure according to claim 1, characterized in that, On one side of the water jacket (1) close to the heat exchanger (6), a first inlet (101) and a first outlet (102) are provided. On one side of the water jacket (1) close to the water-cooled condenser (9), a second inlet (103) and a second outlet (104) are provided.
3. A novel and efficient integrated thermal management system structure according to claim 2, characterized in that, Inside the water jacket (1), a first partition (3) is vertically provided. The first partition (3) is in sealed contact with the compressor and divides the interior of the water jacket (1) into a first water jacket cavity (105) and a second water jacket cavity (106).
4. A novel and efficient integrated structure of a thermal management system according to claim 3, characterized in that, Inside the water jacket (1), a second partition (4) is horizontally provided. The second partition (4) includes a first partition cavity wall (401) and a second partition cavity wall (402). The first partition cavity wall (401) divides the first water jacket cavity (105) into an upper and a lower first cavity and second cavity. The second partition cavity wall (402) divides the second water jacket cavity (106) into an upper and a lower third cavity and fourth cavity. The first inlet (101) corresponds to the first cavity, the first outlet (102) corresponds to the second cavity, the second inlet (103) corresponds to the third cavity, and the second outlet (104) corresponds to the fourth cavity.
5. A novel and efficient integrated thermal management system structure according to claim 4, characterized in that, The first partition (3) is in a U-shaped structure. A U-shaped groove (301) is formed on the U-shaped inner wall of the first partition (3), and a U-shaped gasket (302) is arranged in the U-shaped groove (301).
6. A novel and efficient thermal management system integration structure according to claim 4, characterized in that, A circulation hole is formed on the first partition (3), and the first water jacket cavity (105) and the second water jacket cavity (106) are communicated through the circulation hole.
7. A novel and efficient thermal management system integration structure according to claim 6, characterized in that A liquid storage tank (15) and a refrigerant channel are installed on the compressor cylinder block, and the liquid storage tank (15) is located inside the water jacket (1).
8. A novel and efficient integrated structure of a thermal management system according to claim 7, characterized in that, A refrigerant interface (14) is provided on the top of the top cover (2), and the refrigerant interface (14) is connected to the liquid storage tank (15).