R290 refrigerant integrated system of new energy electric vehicle

Abstract

The utility model relates to the technical field of automobile refrigeration, and belongs to a new energy electric vehicle R290 refrigerant integrated system which comprises an installation support, a flow channel plate, a compressor, a battery cooler chiller, a water cooling condenser LCC, an electronic expansion valve, an intermediate heat exchanger, a liquid storage tank ADCU and a PT sensor. The compressor is arranged in front of the runner plate, the battery cooler chiller, the water-cooled condenser LCC, the electronic expansion valve, the intermediate heat exchanger and the liquid storage tank ADCU are all connected with the runner plate, various runners are arranged in the runner plate, the runners comprise a shared runner, an air supply heating runner and a regenerative refrigeration runner, the shared runner is arranged at the lower part of the runner plate, and the air supply heating runner is arranged at the lower part of the runner plate. The air supply heating runner and the heat regeneration refrigerating runner are formed in the left side and the right side of the runner plate correspondingly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile refrigeration technology belongs to a new energy electric vehicle R290 refrigerant integrated system. BACKGROUND

[0002] Integrated lightweight design becomes the mainstream development direction in the field of new energy vehicles, and integrated modules bring integrated design into the field of new design modes, but at present, integrated modularization is mainly concentrated in R134a and R1234yf refrigerant systems, and in the R290 refrigerant thermal management system, especially in the connection with the compressor, at present, pipeline connection is mainly used.

[0003] R290 refrigerant is a natural environment-friendly refrigerant with excellent refrigeration and heating performance. However, R290 is a refrigerant with flammable characteristics, so solving the safety problem caused by the flammability of R290 becomes a key problem in the promotion of new energy vehicles.

[0004] To solve the above problems, the application provides an integrated module design scheme, which integrates R290 system and cancels pipeline connection, so as to reduce the risk of R290 refrigerant leakage; after compactification / modularization, the system can also be isolated alone, thereby reducing the safety risk. UTILITY MODEL CONTENT

[0005] In view of the above technical problems, the utility model provides a new energy electric vehicle R290 refrigerant integrated system.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] The application provides a new energy electric vehicle R290 refrigerant integrated system, which comprises a mounting bracket, a flow channel plate, a compressor, a battery chiller, a water-cooled condenser LCC, an electronic expansion valve, an intermediate heat exchanger, a liquid storage tank ADCU and a PT sensor, the flow channel plate and the compressor are fixedly connected to the mounting bracket, the compressor is arranged in front of the flow channel plate, the battery chiller, the water-cooled condenser LCC, the electronic expansion valve, the intermediate heat exchanger and the liquid storage tank ADCU are connected with the flow channel plate, a plurality of flow channels are arranged in the flow channel plate, the flow channels comprise a shared flow channel, a gas supplementing and heating flow channel and a heat recovery refrigeration flow channel, the shared flow channel is arranged in the lower part of the flow channel plate, and the gas supplementing and heating flow channel and the heat recovery refrigeration flow channel are arranged on the left and right sides of the flow channel plate respectively.

[0008] As preferred, the electronic expansion valve includes a large-diameter electronic expansion valve ERV and a small-diameter electronic expansion valve EXV, the large-diameter electronic expansion valve ERV is arranged on the top of the flow channel plate, the output end of the large-diameter electronic expansion valve ERV is connected to the air supplement heating flow channel, the small-diameter electronic expansion valve EXV is arranged on the right side of the flow channel plate, and the output end of the small-diameter electronic expansion valve EXV is connected to the common flow channel.

[0009] As preferred, the PT sensor includes a high-pressure PT sensor and a low-pressure PT sensor, the high-pressure PT sensor is arranged on the left side of the flow channel plate, the sensing end of the high-pressure PT sensor is connected to the port of the air supplement heating flow channel, and the low-pressure PT sensor is arranged on the back of the flow channel plate, and the sensing end of the low-pressure PT sensor is connected to the port of the common flow channel.

[0010] As preferred, the battery chiller is connected to the back of the flow channel plate, the input end of the battery chiller is connected to the common flow channel in a through manner, and the output end of the battery chiller is connected to the heat recovery refrigeration flow channel in a through manner.

[0011] As preferred, the water-cooled condenser LCC is connected to the back of the flow channel plate, one end of the battery chiller is connected to the common flow channel in a through manner, and the other end of the battery chiller is connected to the air supplement heating flow channel in a through manner.

[0012] As preferred, the intermediate heat exchanger is connected to the back of the flow channel plate, and both ends of the intermediate heat exchanger are connected to the common flow channel in a through manner.

[0013] As preferred, the liquid storage tank ADCU is connected to the back of the flow channel plate, and both ends of the intermediate heat exchanger are connected to the common flow channel in a through manner.

[0014] Compared with the prior art, the utility model provides a new energy electric vehicle R290 refrigerant integrated system, which has the following beneficial effects:

[0015] The clamping mechanism can adjust the size of the clamping caliber, thereby facilitating clamping of extruded plate samples of different sizes, greatly improving the flexibility of the detection device, and facilitating detection.

[0016] The utility model discloses all flow channels are arranged in the flow channel board, take the flow channel board as the carrier, all parts are arranged on the flow channel board, then the flow channel board and compressor hard connection (non pipeline), integrally place on the mounting support, increase the integration of R290 refrigerant system. The overall structure is compact, the flow channel board is lightweight, the refrigerant side omits the air conditioning pipeline, reduces the risk of R290 refrigerant leakage from the pipeline, after canceling the pipeline, the filling amount of R290 refrigerant in the system can also be reduced, and the safety risk of the whole system is reduced.

[0017] The features and advantages of the utility model will be described in detail in combination with the drawings through embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic diagram of the utility model;

[0019] Figure 2 It is rear view of the utility model;

[0020] Figure 3 It is internal structure schematic diagram of the utility model;

[0021] In the drawing: 1, mounting support;2, flow channel board;3, compressor;4, battery chiller;5, water-cooled condenser LCC;6, electronic expansion valve;7, intermediate heat exchanger;8, liquid storage tank ADCU;9, PT sensor;21, flow channel;211, common flow channel;212, air supplementing and heating flow channel;213, heat recovery refrigeration flow channel;61, large-diameter electronic expansion valve EXV;62, small-diameter electronic expansion valve EXV;91, high-pressure PT sensor;92, low-pressure PT sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, below through the drawing and embodiment, the utility model is further described in detail. But should understand, the specific embodiment described here is only used to explain the utility model, and is not used to limit the scope of the utility model. In addition, in the following description, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] Reference Figures 1-3The utility model provides a new energy electric vehicle R290 refrigerant integrated system, including mounting support 1, flow channel board 2, compressor 3, battery cooler chiller 4, water -cooled condenser LCC 5, electronic expansion valve 6, intermediate heat exchanger 7, liquid storage tank ADCU 8 and PT sensor 9, flow channel board 2 and compressor 3 are all fixedly connected on mounting support 1, the compressor 3 is set in flow channel board 2 front, battery cooler chiller 4, water -cooled condenser LCC 5, electronic expansion valve 6, intermediate heat exchanger 7 and liquid storage tank ADCU 8 all are connected with flow channel board 2, be equipped with multiple flow channel 21 in flow channel board 2, flow channel 21 includes common flow channel 211, air supplement heating flow channel 212 and regenerative refrigeration flow channel 213, common flow channel 211 is set up in flow channel board 2 lower part, air supplement heating flow channel 212 and regenerative refrigeration flow channel 213 are set up in flow channel board 2 left and right two sides respectively.

[0024] Refer to Figures 2-3 Specifically, the electronic expansion valve 6 includes a large-diameter electronic expansion valve ERV61 and a small-diameter electronic expansion valve EXV62, the large-diameter electronic expansion valve ERV61 is arranged on the top of the flow channel board 2, the output end of the large-diameter electronic expansion valve ERV61 is connected to the air supplement heating flow channel 212, the small-diameter electronic expansion valve EXV62 is arranged on the right side of the flow channel board 2, and the output end of the small-diameter electronic expansion valve EXV62 is connected to the common flow channel 211. In the heating mode, the large-diameter electronic expansion valve ERV61 is opened, the high-temperature and high-pressure gas in the exhaust port of the compressor 3 passes through the large-diameter electronic expansion valve ERV61 to enter the bypass branch, and after being mixed with the refrigerant in the outlet of the battery cooler chiller 4, the high-temperature and high-pressure gas enters the intermediate heat exchanger 7 for heat exchange and then enters the suction port of the compressor 3. The small-diameter electronic expansion valve EXV62 throttles the high-temperature and high-pressure liquid refrigerant from the water-cooled condenser LCC 5 and the liquid storage tank ADCU 8, so that the refrigerant becomes a low-temperature and low-pressure gas-liquid two-phase state and enters the battery cooler chiller 4 for evaporation heat exchange.

[0025] Refer to Figures 2-3 Specifically, the PT sensor 9 includes a high-pressure PT sensor 91 and a low-pressure PT sensor 92, the high-pressure PT sensor 91 is arranged on the left side of the flow channel board 2, the sensing end of the high-pressure PT sensor 91 is connected to the port of the air supplement heating flow channel 212, the low-pressure PT sensor 92 is arranged on the back of the flow channel board 2, and the sensing end of the low-pressure PT sensor 92 is connected to the port of the common flow channel 211. The high-pressure PT sensor 91 detects the pressure and temperature of the refrigerant in the exhaust port of the compressor, and the low-pressure PT sensor 92 detects the pressure and temperature of the refrigerant in the suction port of the compressor.

[0026] Refer to Figures 2-3Specifically, the battery chiller 4 is connected to the back of the flow channel plate 2, the input end of the battery chiller 4 is connected to the common flow channel 211 in a through manner, and the output end of the battery chiller 4 is connected to the heat recovery refrigeration flow channel 213 in a through manner.

[0027] Referring to Figures 1-3 Specifically, the water-cooled condenser LCC 5 is connected to the back of the flow channel plate 2, one end of the battery chiller 4 is connected to the common flow channel 211 in a through manner, and the other end of the battery chiller 4 is connected to the air supplement heating flow channel 212 in a through manner.

[0028] Referring to Figures 2-3 Specifically, the intermediate heat exchanger 7 is connected to the back of the flow channel plate 2, and both ends of the intermediate heat exchanger 7 are connected to the common flow channel 211 in a through manner.

[0029] Referring to Figures 2-3 Specifically, the liquid storage tank ADCU 8 is connected to the back of the flow channel plate 2, and both ends of the intermediate heat exchanger 7 are connected to the common flow channel 211 in a through manner.

[0030] The use principle of the embodiment of the utility model: divided into two modes: air supplement heating and heat recovery refrigeration.

[0031] Mode one: air supplement heating; when the heating mode is opened, the refrigerant is compressed into a high-temperature and high-pressure gas by the compressor 3, then enters the water-cooled condenser LCC 5 from the main road, is condensed and releases heat into a high-temperature and high-pressure liquid in the water-cooled condenser LCC 5 and enters the liquid storage tank ADCU 8, then enters the intermediate heat exchanger 7, and becomes a low-temperature and low-pressure gas-liquid two-phase state after throttling through the small-diameter electronic expansion valve EXV 62 and enters the battery chiller 4, absorbs heat and evaporates into a low-temperature and low-pressure gas in the battery chiller 4 and passes through the intermediate heat exchanger 7 again, and exchanges heat with the high-temperature and high-pressure liquid in the intermediate heat exchanger 7 and returns to the suction port of the compressor 3; in the heating mode, the large-diameter electronic expansion valve EREV 61 is opened, a part of the high-temperature and high-pressure gaseous refrigerant at the compressor exhaust port enters the intermediate heat exchanger 7 after passing through the large-diameter electronic expansion valve EREV 61, and the low-temperature and low-pressure gaseous refrigerant from the battery chiller 4, and exchanges heat with the high-temperature and high-pressure liquid in the intermediate heat exchanger 7 and returns to the compressor 3. The high-temperature and high-pressure gaseous refrigerant in the branch and the low-temperature and low-pressure gaseous refrigerant from the battery chiller 4 are combined, which can improve the refrigerant grade and thus improve the low-temperature heating effect.

[0032] Mode two: heat recovery refrigeration; the refrigerant is compressed into a high-temperature and high-pressure gas by the compressor 3, then enters the water-cooled condenser LCC5 from the main road, is condensed and heat dissipated into a high-temperature and high-pressure liquid in the water-cooled condenser LCC5 and enters the liquid storage tank ADCU8, then enters the intermediate heat exchanger 7, is throttled into a low-temperature and low-pressure gas-liquid two-phase state by the small-bore electronic expansion valve EXV62, enters the battery chiller 4, is evaporated into a low-temperature and low-pressure gas in the battery chiller 4, and again passes through the intermediate heat exchanger 7, and the high-temperature and high-pressure liquid in the intermediate heat exchanger 7 is heat-exchanged to return to the suction port of the compressor. In the refrigeration mode, the low-temperature and low-pressure gas refrigerant and the high-temperature and high-pressure liquid refrigerant are heat-exchanged in the intermediate heat exchanger 7, which reduces the pressure of the refrigerant before entering the small-bore electronic expansion valve EXV62, thereby increasing the heat exchange capacity of the battery chiller 4 and achieving the effect of increasing the refrigeration effect.

[0033] In summary, the R290 refrigerant system integrated module is modularized in the flow channel plate to realize the entire system running channel. The entire system has no pipe, and the pipe is not used to connect between the compressor and the flow channel plate. The risk of R290 leakage in the pipe is reduced, and after the pipe is cancelled, the charging amount of R290 refrigerant in the system can also be reduced, and the safety risk of the entire system is reduced.

[0034] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement or improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A new energy electric vehicle R290 refrigerant integrated system, comprising a mounting bracket (1), a flow channel plate (2), a compressor (3), a battery chiller (4), a water-cooled condenser (LCC) (5), an electronic expansion valve (6), an intermediate heat exchanger (7), a liquid storage tank (ADCU) (8) and a PT sensor (9), characterized in that: The flow channel plate (2) and the compressor (3) are fixedly connected to the mounting bracket (1), the compressor (3) is arranged in front of the flow channel plate (2), the battery chiller (4), the water-cooled condenser LCC (5), the electronic expansion valve (6), the intermediate heat exchanger (7) and the liquid storage tank ADCU (8) are connected with the flow channel plate (2), a plurality of flow channels (21) are arranged in the flow channel plate (2), the flow channels (21) include a common flow channel (211), a gas supplementing and heating flow channel (212) and a heat recovery refrigeration flow channel (213), the common flow channel (211) is arranged at the lower part of the flow channel plate (2), and the gas supplementing and heating flow channel (212) and the heat recovery refrigeration flow channel (213) are arranged at the left and right sides of the flow channel plate (2). ​ 2. A new energy electric vehicle R290 refrigerant integrated system according to claim 1, characterized in that: The electronic expansion valve (6) includes a large-diameter electronic expansion valve ERV (61) and a small-diameter electronic expansion valve EXV (62), the large-diameter electronic expansion valve ERV (61) is arranged at the top of the flow channel plate (2), the output end of the large-diameter electronic expansion valve ERV (61) is connected to the gas supplementing and heating flow channel (212), and the small-diameter electronic expansion valve EXV (62) is arranged at the right side of the flow channel plate (2); the output end of the small-diameter electronic expansion valve EXV (62) is connected to the common flow channel (211).

3. A new energy electric vehicle R290 refrigerant integrated system according to claim 1, characterized in that: The PT sensor (9) includes a high-pressure PT sensor (91) and a low-pressure PT sensor (92), the high-pressure PT sensor (91) is arranged at the left side of the flow channel plate (2), the sensing end of the high-pressure PT sensor (91) is connected to the port of the gas supplementing and heating flow channel (212), the low-pressure PT sensor (92) is arranged at the back of the flow channel plate (2), and the sensing end of the low-pressure PT sensor (92) is connected to the port of the common flow channel (211).

4. A new energy electric vehicle R290 refrigerant integrated system according to claim 1, characterized in that: The battery chiller (4) is connected to the back of the flow channel plate (2), the input end of the battery chiller (4) is connected to the common flow channel (211) in a penetrating mode, and the output end of the battery chiller (4) is connected to the heat recovery refrigeration flow channel (213) in a penetrating mode.

5. A new energy electric vehicle R290 refrigerant integrated system according to claim 1, characterized in that: The water-cooled condenser LCC (5) is connected to the back of the flow channel plate (2), one end of the battery chiller (4) is connected to the common flow channel (211) in a penetrating mode, and the other end of the battery chiller (4) is connected to the gas supplementing and heating flow channel (212) in a penetrating mode.

6. A new energy electric vehicle R290 refrigerant integrated system according to claim 1, characterized in that: The intermediate heat exchanger (7) is connected to the back of the flow channel plate (2), and the two ends of the intermediate heat exchanger (7) are connected to the common flow channel (211) in a penetrating mode.

7. A new energy electric vehicle R290 refrigerant integrated system according to claim 1, characterized in that: The liquid storage tank ADCU (8) is connected to the back of the flow channel plate (2), and the two ends of the intermediate heat exchanger (7) are connected to the common flow channel (211) in a penetrating mode.

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