CN-121973589-A - Vehicle-mounted refrigerator refrigerating device of vehicle thermal management system, vehicle and control method

Abstract

The invention provides a vehicle-mounted refrigerator refrigerating device of a vehicle thermal management system, a vehicle and a control method, wherein the vehicle-mounted refrigerator refrigerating device comprises a first electronic throttle valve, a second electronic throttle valve, a refrigerator evaporator, a micro booster pump, a switching valve and a controller; the first electronic throttle valve and the second electronic throttle valve are connected in parallel between the outlet of the vehicle condenser and the inlet of the refrigerator evaporator, the outlet of the refrigerator evaporator is connected with the input end of the switching valve, the first output end of the switching valve is connected with the common air return pipeline, the second output end of the switching valve is connected with the supercharging air return pipeline, the micro booster pump is arranged on the supercharging air return pipeline, and the output ends of the common air return pipeline and the supercharging air return pipeline are connected into the low-pressure air return port of the vehicle compressor after being converged. The vehicle-mounted refrigerator refrigerating device of the vehicle thermal management system, the vehicle and the control method can achieve the comprehensive effects of energy conservation, noise reduction, weight reduction, cost reduction and reliability improvement while achieving the rapid cooling of the refrigerator.

Inventors

• Pi Wenchao

Assignees

• 皮文超

Dates

Publication Date

20260505

Application Date

20260108

Claims (8)

1. 1. The vehicle-mounted refrigerator refrigerating device of the vehicle thermal management system is characterized by comprising a first electronic throttle valve, a second electronic throttle valve, a refrigerator evaporator, a micro booster pump, a switching valve and a controller; the first electronic throttle valve and the second electronic throttle valve are connected in parallel between the outlet of the vehicle condenser and the inlet of the refrigerator evaporator; The outlet of the refrigerator evaporator is connected with the input end of the switching valve, the first output end of the switching valve is connected with a common air return pipeline, the second output end of the switching valve is connected with a supercharging air return pipeline, and the micro booster pump is arranged on the supercharging air return pipeline; the common air return pipeline is connected with the output end of the pressurizing air return pipeline and then connected with a low-pressure air return port of the vehicle compressor; The controller is electrically connected with the first electronic throttle valve, the second electronic throttle valve, the switching valve and the micro booster pump and is used for controlling the operation of each component according to the ambient temperature and the working state of the vehicle air conditioner.
2. 2. The vehicle-mounted refrigerator cooling device of the vehicle thermal management system according to claim 1, wherein: the flow caliber of the first electronic throttle valve is smaller than that of the second electronic throttle valve.
3. 3. The vehicle thermal management system of claim 1, wherein said micro booster pump is of a turbo-type structure.
4. 4. The vehicle-mounted refrigerator refrigerating device of the vehicle thermal management system according to claim 1, wherein the controller is configured to control the first electronic throttle valve to be opened and the switching valve to be communicated with the common air return pipeline when the ambient temperature is higher than 32 ℃ and the vehicle air conditioner is in an opened state, and control the switching valve to be switched to be communicated with the supercharging air return pipeline and control the micro booster pump to be started after the vehicle thermal management system is operated for 1 to 3 minutes.
5. 5. The on-vehicle refrigerator freezer of claim 1, wherein the controller is configured to control the first electronic throttle valve to open and the switching valve to remain in communication with the normal return air duct when the ambient temperature is between 20 ℃ and 32 ℃ and the vehicle air conditioner is in an on state.
6. 6. The apparatus of claim 1, wherein the controller is configured to control the second electronic throttle to open and the switching valve to communicate with the normal return air line when the vehicle air conditioner is in a closed state.
7. 7. A vehicle comprising the on-vehicle refrigerator cooling apparatus according to any one of claims 1 to 6.
8. 8. A method for controlling the on-vehicle refrigerator cooling apparatus of claim 1, comprising the steps of: S1, detecting the ambient temperature and the working state of a vehicle air conditioner; S2, when the ambient temperature is higher than 32 ℃ and the vehicle air conditioner is in an on state, executing a high Wen Suleng control flow, namely controlling the first electronic throttle valve to be opened and controlling the switching valve to be communicated with the common air return pipeline; And S3, after the operation is continued for 1 to 3 minutes, controlling the switching valve to be switched to be communicated with the pressurizing air return pipeline, and controlling the micro booster pump to be started.

Description

Vehicle-mounted refrigerator refrigerating device of vehicle thermal management system, vehicle and control method Technical Field The invention relates to the technical field of vehicle thermal management, in particular to a vehicle-mounted refrigerator refrigerating device of a vehicle thermal management system, a vehicle and a control method. Background As the demand for ride comfort and convenience in the automotive consumer market has increased, on-board refrigerators have become an increasingly configured choice for vehicles. The main current vehicle-mounted refrigerator adopts an independent refrigerating system, and has the defects of low refrigerating efficiency, low power, low refrigerating speed and difficulty in reaching preset temperature due to the fact that an independent compressor is limited by a vehicle-mounted space and power supply, high energy consumption of the whole vehicle, independent driving of the compressor and a cooling fan is needed by the independent refrigerating system, additional consumption of vehicle electric energy is achieved, new energy vehicle endurance or fuel vehicle economy is reduced, space occupation is large, the independent system comprises the compressor, the condenser, the fan and other parts, vehicle layout complexity is increased, driving or storage space is extruded, noise vibration is obvious, mechanical noise and vibration generated when the independent compressor works are directly transmitted to a carriage, driving comfort is affected, and comprehensive cost is high, and parts of the independent system are high in design, assembly and maintenance cost. In order to solve the problems, the prior art attempts to connect the vehicle-mounted refrigerator into the vehicle air conditioning system, but most of the prior art only adopts a simple parallel connection mode, and core problems such as refrigerant distribution rationality, system pressure balance, multi-working-condition adaptability and compressor protection are not fully considered, so that the scheme has insufficient practicability and is difficult to popularize in a large scale. Therefore, a technical scheme for solving the technical pain point and realizing efficient cooperation of the vehicle-mounted refrigerator and the original vehicle air conditioning system is needed. Disclosure of Invention The invention aims to solve the technical problems of the background art, provides a vehicle-mounted refrigerator refrigerating device of a vehicle thermal management system, a vehicle and a control method, and particularly relates to a technical scheme for carrying out integrated design and intelligent control on a vehicle-mounted refrigerator refrigerating function and an original vehicle air conditioner refrigerant circulating system. The invention provides a vehicle-mounted refrigerator refrigerating device of a vehicle thermal management system, which comprises a first electronic throttle valve, a second electronic throttle valve, a refrigerator evaporator, a micro booster pump, a switching valve and a controller, wherein the first electronic throttle valve is connected with the first electronic throttle valve; the first electronic throttle valve and the second electronic throttle valve are connected in parallel between the outlet of the vehicle condenser and the inlet of the refrigerator evaporator; The outlet of the refrigerator evaporator is connected with the input end of the switching valve, the first output end of the switching valve is connected with a common air return pipeline, the second output end of the switching valve is connected with a supercharging air return pipeline, and the micro booster pump is arranged on the supercharging air return pipeline; the common air return pipeline is connected with the output end of the pressurizing air return pipeline and then connected with a low-pressure air return port of the vehicle compressor; The controller is electrically connected with the first electronic throttle valve, the second electronic throttle valve, the switching valve and the micro booster pump and is used for controlling the operation of each component according to the ambient temperature and the working state of the vehicle air conditioner. Further, the flow aperture of the first electronic throttle valve is smaller than that of the second electronic throttle valve. Further, the micro booster pump is of a vortex type structure. Further, the controller is configured to control the first electronic throttle valve to be opened and the switching valve to be communicated with the common return air pipeline when the ambient temperature is higher than 32 ℃ and the vehicle air conditioner is in an opened state, and control the switching valve to be switched to be communicated with the supercharging return air pipeline and control the micro booster pump to be started after the micro booster pump continuously operates for 1 to 3 minutes. Further, the controller is configured to control the