Battery swapping battery cooling system

Abstract

The utility model relates to the field of new energy automobile battery replacement cooling, concretely relates to a battery replacement battery cooling system, including vehicle control unit VCU, water pump and battery package, vehicle control unit VCU and water pump signal connection are set up with the cooling pipeline in the battery package, the water inlet of water pump and the cooling pipeline in the battery package is connected through the water inlet pipe, still include the gas drive cooling system, condenser and expansion water tank, one end of expansion water tank and the water outlet of cooling pipeline are connected through the water outlet pipe, the other end is connected through the circulating water pipe and water pump, and the condenser is installed on the circulating water pipe between expansion water tank and water pump, and the gas drive cooling system is connected with the cooling pipeline of battery package, and vehicle control unit VCU and gas drive cooling system signal connection control gas drive cooling system, have solved the low heat exchange efficiency or the higher cost of overall space occupation of the battery cooling at present stage, hindered the development of battery replacement technology, cannot satisfy the problem of the requirement of driver.

Description

Technical Field

[0001] This utility model relates to the field of battery swapping cooling for new energy vehicles, specifically to a battery swapping cooling system. Background Technology

[0002] With the government's support and promotion of new energy vehicles, pure electric vehicles are gaining increasing popularity. Battery-swapping vehicles, with their advantages of short charging times, high charging efficiency, and rapid energy consumption, are attracting even more attention. However, due to the significant heat generated by the battery during operation and the stringent requirements for battery operating temperatures, a battery cooling system is necessary. Currently, there are two battery cooling solutions for battery-swapping vehicles: 1. Indirectly cooling the battery through a cooling plate in contact with it; 2. Integrating the entire cooling system with the battery, replacing the entire system simultaneously when replacing the battery. Both of these solutions suffer from drawbacks such as low heat exchange efficiency or large overall space requirements and high costs, hindering the development of battery-swapping technology and failing to meet drivers' requirements.

[0003] At present, a battery cooling system for battery swapping is proposed to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a battery cooling system for battery swapping to solve the problems of low heat exchange efficiency or large overall space occupation and high cost in current battery cooling, which hinder the development of battery swapping technology and cannot meet the requirements of drivers.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A battery cooling system for battery swapping includes a vehicle control unit (VCU), a water pump, and a battery pack. The VCU and the water pump are signal-connected. The battery pack contains cooling pipes. The water pump and the inlet of the cooling pipes in the battery pack are connected via an inlet pipe. The system also includes an air-driven cooling system, a condenser, and an expansion tank. One end of the expansion tank is connected to the outlet of the cooling pipes via an outlet pipe, and the other end is connected to the water pump via a circulating water pipe. The condenser is installed on the circulating water pipe between the expansion tank and the water pump. The air-driven cooling system is connected to the cooling pipes of the battery pack. The VCU is signal-connected to the air-driven cooling system and controls it.

[0007] Further specifying, the water outlet pipe is equipped with a one-way valve and a flow sensor. The flow sensor is installed on the water outlet pipe between the one-way valve and the expansion tank, and the flow sensor is signal-connected to the vehicle control unit (VCU).

[0008] Further specified, a three-way check valve is provided at the inlet of the cooling pipeline, the inlet pipe of the water pump is connected to port A of the three-way check valve, and the outlet of the three-way check valve is connected to the cooling pipeline.

[0009] Further specifying, the air-driven cooling system includes an air reservoir and an electronically controlled intake valve. The air reservoir and the electronically controlled intake valve are connected through a first air pipe. The electronically controlled intake valve and the B port of the three-way check valve are connected through a second air pipe. The electronically controlled intake valve is signal-connected to the vehicle control unit (VCU).

[0010] The advantages of this utility model over the current technology are as follows:

[0011] 1. Equipped with a flow sensor, when the flow sensor detects no coolant in the pipeline, it sends feedback to the vehicle control unit (VCU). The VCU then controls the electronically controlled intake valve to close the air valve, at which point the battery replacement begins. This reduces costs and achieves the goal of efficient, clean, and convenient car battery replacement.

[0012] 1. Equipped with an air-driven cooling system, which can blow out the coolant from the battery pack cooling pipes. The coolant then enters the expansion tank through the outlet pipe, thus quickly clearing the coolant from the cooling pipes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the system structure of this utility model;

[0014] The markings in the diagram correspond to: 1-Vehicle Control Unit (VCU), 2-Water Pump, 3-Battery Pack, 31-Cooling Pipe, 4-Three-Way Check Valve, 5-Water Inlet Pipe, 6-Condenser, 7-Expansion Tank, 8-Air Reservoir, 81-Electrically Controlled Air Inlet Valve, 82-First Air Pipe, 83-Second Air Pipe, 9-Water Outlet Pipe, 10-Circulating Water Pipe, 11-Water Outlet Check Valve, 12-Flow Sensor. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0016] like Figure 1As shown, a battery cooling system for battery swapping includes a vehicle control unit (VCU1), a water pump 2, and a battery pack 3. The VCU1 and water pump 2 are signal-connected. A cooling pipe 31 is installed inside the battery pack 3. A three-way check valve 4 is installed at the inlet of the cooling pipe 31 and connected to its output port. The water pump 2 and the A port of the three-way check valve 4 are connected through an inlet pipe 5. The system also includes an air-driven cooling system, a condenser 6, and an expansion tank 7. The air-driven cooling system includes an air reservoir 8 and an electronically controlled air intake valve 81. The air reservoir 8 and the electronically controlled air intake valve 81 are connected through a first air pipe 82. The electronically controlled air intake valve 81 and the three-way check valve 81 are connected through a first air pipe 82. The B port of valve 4 is connected through the second air pipe 83. The electronically controlled intake valve 81 is connected to the vehicle control unit VCU1 via signal. One end of the expansion tank 7 is connected to the outlet of the cooling pipe 31 via the outlet pipe 9, and the other end is connected to the water pump 2 via the circulating water pipe 10. The condenser 6 is installed on the circulating water pipe 10 between the expansion tank 7 and the water pump 2. The outlet pipe 9 is equipped with an outlet check valve 11 and a flow sensor 12. The flow sensor 12 is installed on the outlet pipe 9 between the outlet check valve 11 and the expansion tank 7. The flow sensor 12 is connected to the vehicle control unit VCU1 via signal and is used to detect whether there is coolant in the cooling pipe 31.

[0017] During normal operation, the vehicle control unit (VCU1) controls the water pump 2 to operate. Coolant enters the cooling pipe 31 of the battery pack 3 through the inlet pipe 5 and the A port of the three-way check valve 4. The coolant circulates within the cooling pipe 31, carrying away heat. It then passes through the outlet check valve 11 and flow sensor 12 on the outlet pipe 9 into the expansion tank 7 for depressurization. The coolant then flows from the expansion tank 7 through the circulation pipe 10 into the condenser 6 for cooling. The operation of the water pump 2 then repeats the cooling process within the battery pack 3, achieving battery cooling. When a battery swap is required, the vehicle control unit (VCU1) controls the water pump 2 to stop operating, the coolant circulation stops, and the vehicle control unit (VCU1) controls the electronically controlled intake valve 81 to open the air valve, allowing compressed air to flow from the air reservoir. 8. Coolant enters the cooling pipe 31 of battery pack 3 through the electronically controlled intake valve 81 and the B port of the three-way check valve 4, blowing out the coolant in the cooling pipe 31. The coolant enters the expansion tank 7 for depressurization through the outlet check valve 11 and flow sensor 12 on the outlet pipe 9. When the flow sensor 12 detects that there is no coolant in the outlet pipe 9, it sends feedback to the vehicle control unit VCU1. The vehicle control unit VCU1 controls the electronically controlled intake valve 81 to close the valve. At this time, there is no coolant in the battery. The three-way check valve 4 and the outlet check valve 11 can be disconnected. When no coolant flows out of the battery pack 3, the battery pack 3 can be replaced. After the battery pack 3 is replaced, the vehicle control unit VCU1 is manually controlled to turn on the water pump 2 again, and the coolant starts to circulate and begin normal cooling.

[0018] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The above provides a detailed description of a battery cooling system for battery swapping provided by this utility model. The specific embodiments are only used to help understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the scope of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A battery replacement battery cooling system, comprising a vehicle control unit VCU (1), a water pump (2) and a battery pack (3), the vehicle control unit VCU (1) and the water pump (2) are signal connected, the battery pack (3) is provided with a cooling pipeline (31) inside, the water pump (2) and the water inlet of the cooling pipeline (31) inside the battery pack (3) are connected through a water inlet pipe (5), characterized in that: It also includes an air-driven cooling system, a condenser (6) and an expansion tank (7). One end of the expansion tank (7) is connected to the outlet of the cooling pipe (31) through an outlet pipe (9), and the other end is connected to the water pump (2) through a circulating water pipe (10). The condenser (6) is installed on the circulating water pipe (10) between the expansion tank (7) and the water pump (2). The air-driven cooling system is connected to the cooling pipe (31) of the battery pack (3). The vehicle control unit (VCU) (1) is connected to the air-driven cooling system and controls the air-driven cooling system. ​ 2. The battery swapping and cooling system according to claim 1, wherein: The outlet pipe (9) is equipped with an outlet check valve (11) and a flow sensor (12). The flow sensor (12) is installed on the outlet pipe (9) between the outlet check valve (11) and the expansion tank (7). The flow sensor (12) is connected to the vehicle control unit (VCU) (1).

3. The battery swapping and cooling system of claim 1, wherein: A three-way check valve (4) is provided at the inlet of the cooling pipe (31). The inlet pipe (5) of the water pump (2) is connected to the A port of the three-way check valve (4). The outlet of the three-way check valve (4) is connected to the cooling pipe (31).

4. The battery swapping and cooling system of claim 3, wherein: The air-driven cooling system includes an air reservoir (8) and an electronically controlled intake valve (81). The air reservoir (8) and the electronically controlled intake valve (81) are connected through a first air pipe (82). The electronically controlled intake valve (81) and the B port of the three-way check valve (4) are connected through a second air pipe (83). The electronically controlled intake valve (81) is signal-connected to the vehicle control unit (VCU) (1).

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