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CN-224224871-U - Refrigerating system and vehicle

CN224224871UCN 224224871 UCN224224871 UCN 224224871UCN-224224871-U

Abstract

The utility model provides a refrigerating system and a vehicle, and relates to the technical field of automobile thermal management. The refrigerating system comprises a condenser, a compressor, a heat exchanger and a plurality of evaporators which are arranged in parallel, wherein an air outlet of the compressor is communicated with a liquid inlet of the condenser, a liquid outlet of the condenser is communicated with a liquid inlet of a high-pressure end of the heat exchanger, a low-pressure end of the heat exchanger is communicated with the plurality of evaporators, and an air return outlet of the high-pressure end of the heat exchanger is communicated with an air inlet of the compressor. According to the utility model, a single compressor is used for providing refrigeration sources for different evaporator systems at the same time, such as a vehicle-mounted air conditioner, battery thermal management and a vehicle-mounted refrigerator, so that the separation mode of the traditional three independent systems is broken, the integration of system components can be realized, the refrigeration requirement of a single system or multiple systems is met, the refrigeration utilization rate of the whole vehicle is improved, the repeated arrangement of the number of compressors and the whole vehicle components is effectively reduced, and the weight, the volume and the purchasing cost of the system are reduced.

Inventors

  • HUANG SHENGKAI
  • WU DI
  • LUO WEIXING
  • MA HAO
  • CHEN XINJIE
  • FENG YUNFENG
  • TONG LIXIAN
  • SHU XINJIAN

Assignees

  • 极光湾(宁波)智能科技有限公司
  • 极光湾科技有限公司

Dates

Publication Date
20260512
Application Date
20250801

Claims (10)

  1. 1. The utility model provides a refrigerating system, its characterized in that includes condenser (1), compressor (2), heat exchanger (3) and a plurality of parallelly connected evaporimeter that sets up, the gas outlet of compressor (2) with the inlet intercommunication of condenser (1), the liquid outlet of condenser (1) with the high-pressure side inlet intercommunication of heat exchanger (3), the low-pressure side of heat exchanger (3) communicates with a plurality of the evaporimeter, the high-pressure side return air export of heat exchanger (3) with the air inlet intercommunication of compressor (2).
  2. 2. A refrigeration system according to claim 1, wherein the plurality of evaporators comprises a battery pack cooling plate (6) located in a battery branch, a refrigerator evaporator (11) located in a refrigerator branch and an air-conditioning evaporator located in an air-conditioning branch, the battery branch, the refrigerator branch and the air-conditioning branch being connected in parallel and then connected to the low-pressure side of the heat exchanger (3).
  3. 3. A refrigeration system according to claim 2, wherein the battery branch further comprises a first expansion valve (5) and a second expansion valve (7), the first expansion valve (5) being located at an inlet end of the battery pack cooling plate (6), the second expansion valve (7) being located at an outlet end of the battery pack cooling plate (6).
  4. 4. The refrigeration system according to claim 2, wherein the refrigerator branch further comprises a first stop valve (8), the first stop valve (8) is located at a liquid inlet of the refrigerator evaporator (11), and the first stop valve (8) is used for controlling on-off of the refrigerator branch.
  5. 5. The refrigeration system according to claim 4, characterized in that the refrigerator branch further comprises a third expansion valve (9), the third expansion valve (9) being connected in series between the first shut-off valve (8) and the refrigerator evaporator (11), the third expansion valve (9) being adapted to throttle the refrigerant coming from the condenser (1) from a high-pressure liquid state to a low-pressure liquid state.
  6. 6. A refrigeration system according to claim 2, wherein the refrigerator branch further comprises a refrigerator (10), the refrigerator evaporator (11) being in communication with a refrigerator (12) through the refrigerator (10).
  7. 7. A refrigeration system according to claim 2, characterized in that the air conditioning branch comprises a first air conditioning branch comprising a front passenger compartment air conditioning evaporator (15) and a second shut-off valve (13) and a fourth expansion valve (14) in series with the front passenger compartment air conditioning evaporator (15).
  8. 8. A refrigeration system according to claim 2, characterized in that the air conditioning branch comprises a second air conditioning branch comprising a rear passenger compartment air conditioning evaporator (18) and a third shut-off valve (16) and a fifth expansion valve (17) in series with the rear passenger compartment air conditioning evaporator (18).
  9. 9. A refrigeration system according to any of claims 1 to 8, further comprising a low pressure switch (4), the low pressure switch (4) being connected in series between the heat exchanger (3) and the evaporator.
  10. 10. A vehicle comprising a refrigeration system according to any one of claims 1 to 9.

Description

Refrigerating system and vehicle Technical Field The utility model relates to the technical field of automobile thermal management, in particular to a refrigerating system and a vehicle. Background The new energy automobile thermal management system is one of key subsystems for ensuring safe and efficient operation of an electric automobile (EV), a plug-in hybrid electric vehicle (PHEV) and a range-extended power automobile, and has the main function of ensuring that a battery, an electric drive system and a passenger cabin can keep an optimal working state in various environments by controlling temperature. Along with the improvement of the heat management requirements of new energy automobiles, the traditional refrigeration architecture gradually exposes the following remarkable defects that the current vehicle-mounted air conditioner, battery cooling and vehicle-mounted refrigerator respectively and independently operate, are respectively provided with a special compressor or refrigeration equipment, and are repeatedly built in a mode, so that chassis space is wasted, equipment redundancy is caused, and the average utilization rate of the resources such as the compressor is low. Disclosure of utility model The utility model solves the problem of improving the refrigeration utilization rate of the whole vehicle. In order to solve the above problems, the present utility model provides a refrigeration system and a vehicle. In a first aspect, the present utility model provides a refrigeration system, including a condenser, a compressor, a heat exchanger, and a plurality of evaporators arranged in parallel, wherein an air outlet of the compressor is communicated with a liquid inlet of the condenser, a liquid outlet of the condenser is communicated with a liquid inlet of a high-pressure end of the heat exchanger, a low-pressure end of the heat exchanger is communicated with the plurality of evaporators, and a return air outlet of the high-pressure end of the heat exchanger is communicated with an air inlet of the compressor. Optionally, the plurality of evaporators include a battery pack cooling plate located in a battery branch, a refrigerator evaporator located in a refrigerator branch and an air conditioner evaporator located in an air conditioner branch, and the battery branch, the refrigerator branch and the air conditioner branch are connected in parallel and then communicated with the low-pressure end of the heat exchanger. Optionally, the battery branch further includes a first expansion valve and a second expansion valve, the first expansion valve is located at an inlet end of the battery pack cooling plate, and the second expansion valve is located at an outlet end of the battery pack cooling plate. Optionally, the refrigerator branch further comprises a first stop valve, the first stop valve is located at a liquid inlet of the refrigerator evaporator, and the first stop valve is used for controlling on-off of the refrigerator branch. Optionally, the refrigerator branch further comprises a third expansion valve, the third expansion valve is connected in series between the first stop valve and the refrigerator evaporator, and the third expansion valve is used for throttling the refrigerant from the condenser from a high-pressure liquid state to a low-pressure liquid state. Optionally, the refrigerator branch further comprises a refrigerator, and the refrigerator evaporator is communicated with the refrigerator through the refrigerator. Optionally, the air conditioning branch comprises a first air conditioning branch, and the first air conditioning branch comprises a front passenger cabin air conditioning evaporator, and a second stop valve and a fourth expansion valve which are connected in series with the front passenger cabin air conditioning evaporator. Optionally, the air conditioning branch comprises a second air conditioning branch, and the second air conditioning branch comprises a rear passenger cabin air conditioning evaporator, and a third stop valve and a fifth expansion valve which are connected in series with the rear passenger cabin air conditioning evaporator. Optionally, the refrigeration system further comprises a low pressure switch connected in series between the heat exchanger and the evaporator. In a second aspect, the present utility model provides a vehicle comprising a refrigeration system as described in the first aspect. The refrigeration system has the beneficial effects that a single compressor provides refrigeration sources for different evaporator systems at the same time, such as a vehicle-mounted air conditioner, battery thermal management and a vehicle-mounted refrigerator, so that the separation mode of the traditional three independent systems is broken, the integration of system components can be realized, the refrigeration requirement of a single system or multiple systems is met, the refrigeration utilization rate of the whole vehicle is improved, the repeated arr