Temperature regulation and control device of lithium ion battery

Abstract

The utility model provides a temperature regulation and control device of a lithium ion battery, which comprises a cover plate, a support plate is arranged on the cover plate, an air guide flow channel is arranged on the support plate, and an inlet and an outlet are arranged at two ends of the air guide flow channel; a partition plate is arranged on the air guide flow channel, and a temperature sensing patch is arranged on the partition plate; and an air guide hole is formed in one side of the air guide flow channel. The temperature regulation and control device of the lithium ion battery is excellent in heat dissipation effect, temperature control precision, maintenance convenience, safety protection, applicability and the like, and provides powerful guarantee for safe and efficient operation of the lithium ion battery.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion batteries, and in particular to a temperature control device for lithium-ion batteries. Background Technology

[0002] Lithium-ion batteries generate a significant amount of heat during operation, primarily from electrochemical processes and Joule heating caused by electron movement within the battery. If this heat cannot be dissipated promptly, the temperature will rise sharply, leading to performance degradation, shortened lifespan, and even thermal runaway and other safety issues. Therefore, effective heat dissipation and temperature control are essential for battery performance.

[0003] Currently, thermal management technologies for lithium-ion batteries mainly include air cooling, liquid cooling, and phase change material cooling. However, these technologies have certain limitations in practical applications. For example, while air cooling is simple and easy to implement, its heat dissipation efficiency is relatively low; while liquid cooling has high heat dissipation efficiency, its system structure is complex and there are safety risks such as coolant leakage. Therefore, it is necessary to develop a temperature control device that is both efficient and safe to meet the thermal management requirements of lithium-ion batteries. Utility Model Content

[0004] The purpose of this invention is to provide a temperature control device for lithium-ion batteries, which performs excellently in terms of heat dissipation, temperature control accuracy, ease of maintenance, safety protection, and applicability, providing a strong guarantee for the safe and efficient operation of lithium-ion batteries.

[0005] To achieve the above objectives, this utility model provides a temperature control device for a lithium-ion battery, including a cover plate, a support plate on the cover plate, an airflow channel on the support plate, and an inlet and an outlet at both ends of the airflow channel.

[0006] A baffle is provided on the airflow channel, and a temperature sensing patch is provided on the baffle; an airflow hole is provided on one side of the airflow channel.

[0007] Preferably, the airflow channel is provided on one or both sides of the support plate, and at least one airflow channel is provided.

[0008] Preferably, an air inlet and an air outlet are respectively provided on both sides of the cover plate, with the air inlet located on the inlet side of the airflow channel and the air outlet located on the outlet side of the airflow channel.

[0009] Preferably, a first fan is provided in both the air inlet and the air outlet.

[0010] Preferably, the cover plate is provided with an opening at the center, a second fan is provided in the opening, and a semiconductor cooling chip is provided on one side of the cover plate located on one side of the support plate.

[0011] Preferably, a guide rail is provided on the inner side of the cover plate, and guide bars are provided on both sides of the support plate, with the guide bars located inside the guide rail.

[0012] Preferably, one end of the support plate is provided with a wiring port.

[0013] Preferably, a temperature display is provided at one end of the support plate, and a transparent window is provided on the top of the cover plate, with the temperature display located on one side of the transparent window.

[0014] Preferably, a filter screen is provided inside the air guide hole.

[0015] Therefore, the present invention employs the above-mentioned temperature control device for lithium-ion batteries, and the technical effects are as follows:

[0016] By incorporating airflow channels, a first fan, and a second fan, the airflow speed inside the lithium-ion battery is increased, effectively removing the heat dissipated by the battery. This design achieves a significant air-cooling effect when the battery pack is discharged at 1C or 2C.

[0017] When the battery temperature rises sharply, such as at a 3C discharge rate, although the effect of air cooling may be limited, the device can still reduce the battery temperature as much as possible by increasing air circulation and use a semiconductor cooling chip for secondary cooling, thereby effectively avoiding safety issues caused by battery overheating.

[0018] Temperature sensor patches monitor battery temperature in real time and transmit the data to a temperature display, allowing staff to intuitively understand the temperature changes inside the battery.

[0019] When the temperature exceeds the set threshold, the thermoelectric cooler automatically starts to perform a two-stage cooling operation to ensure that the battery always operates within a safe temperature range. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a temperature control device for a lithium-ion battery according to the present invention;

[0021] Figure 2 This is a partial schematic diagram of a temperature control device for a lithium-ion battery according to the present invention;

[0022] Figure 3 This is a schematic diagram of the support plate;

[0023] Figure 4 This is a schematic diagram of the cover plate.

[0024] 1. Cover plate; 2. Support plate; 3. Airflow channel; 4. Inlet; 5. Outlet; 6. Partition; 7. Temperature sensor patch; 8. Air vent; 9. Air inlet; 10. Air outlet; 11. First fan; 12. Opening; 13. Second fan; 14. Semiconductor cooling chip; 15. Guide rail; 16. Guide bar; 17. Wiring port; 18. Temperature display. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0026] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, a temperature control device for a lithium-ion battery includes a cover plate 1. Multiple cover plates 1 can be arranged to form a box for placing lithium-ion batteries.

[0029] A support plate 2 is mounted on the cover plate 1, and an airflow channel 3 is mounted on the support plate 2 to increase air circulation within the lithium-ion battery. A separator 6 is mounted on the airflow channel 3, and a temperature sensing patch 7 is mounted on the separator 6 for real-time temperature monitoring. A temperature display 18 is also mounted at one end of the support plate 2, and a transparent window is mounted on the cover plate 1, with the temperature display 18 located to one side of the transparent window. The temperature sensing patch 7 transmits the monitored temperature to the temperature display 18, allowing observation of temperature changes inside the lithium-ion battery through the transparent window. The transparent window is movably connected to the cover plate 1, facilitating the removal of the support plate 2.

[0030] The airflow channel 3 has an inlet 4 and an outlet 5 at both ends. The cover plate 1 has an air inlet 9 and an air outlet 10 on both sides, respectively. The air inlet 9 is located on the side of the inlet 4 of the airflow channel 3, and the air outlet 10 is located on the side of the outlet 5 of the airflow channel 3. The air inlet 9 and the air outlet 10 can increase the air circulation in the airflow channel 3 and remove the heat dissipated by the lithium-ion battery.

[0031] An air duct 8 is provided on one side of the airflow channel 3. A certain distance is provided between the support plate 2 and the cover plate 1. The air duct 8 increases the air exchange and circulation on both sides of the support plate 2. The airflow channel 3 is provided on one or both sides of the support plate 2. At least one airflow channel 3 is provided so that air can circulate on both sides of the support plate 2.

[0032] Both the air inlet 9 and the air outlet 10 are equipped with a first fan 11, which increases the speed of air circulation and removes more heat.

[0033] An opening 12 is provided at the center of the cover plate 1, and a second fan 13 is provided inside the opening 12. The second fan 13 works in conjunction with the first fan 11 to cool down the lithium-ion battery, forming a first-level cooling operation.

[0034] A semiconductor cooling chip 14 is also provided on one side of the cover plate 1. The semiconductor cooling chip 14 is located on one side of the support plate 2. When the temperature displayed on the temperature display 18 exceeds the set threshold, the semiconductor cooling chip 14 starts to cool and implements a two-stage cooling operation.

[0035] The inner side of the cover plate 1 is provided with a guide rail 15, and the two sides of the support plate 2 are provided with guide bars 16. The guide bars 16 are located inside the guide rail 15, so that the support plate 2 can be easily disassembled when maintenance or replacement is required.

[0036] One end of the support plate 2 is provided with a wiring port 17, through which power is supplied to the entire device.

[0037] A filter screen is installed inside the air vent 8 to prevent dust or other impurities from entering the battery.

[0038] Therefore, the temperature control device for lithium-ion batteries described above exhibits excellent performance in terms of heat dissipation, temperature control accuracy, ease of maintenance, safety protection, and applicability, providing a strong guarantee for the safe and efficient operation of lithium-ion batteries.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A temperature regulating device for a lithium-ion battery, the device comprising: a housing; a temperature sensor; a temperature control unit; a heating element; and a cooling element. Including the cover plate, which is provided with a support plate, the support plate is provided with a gas guide channel, both ends of the gas guide channel are provided with an inlet and an outlet; The gas guide channel is provided with a partition, and the partition is provided with a temperature sensing patch; One side of the gas guide channel is provided with a gas guide hole.

2. The temperature regulating device of claim 1, wherein the temperature regulating device is configured to be placed in a space between a battery and a battery management system of a lithium-ion battery. The gas guide channel is arranged on one side or both sides of the support plate, and at least one gas guide channel is arranged.

3. The temperature regulating device of claim 1, wherein the temperature regulating device is a lithium-ion battery temperature regulating device. Both sides of the cover plate are provided with an air inlet and an air outlet, respectively, the air inlet is located on one side of the inlet of the gas guide channel, and the air outlet is located on one side of the outlet of the gas guide channel.

4. The temperature regulating device of claim 3, wherein the temperature regulating device is configured to be placed on a top surface of the lithium-ion battery. The first fan is arranged in the air inlet and the air outlet.

5. The temperature regulating device of claim 1, wherein the temperature regulating device is a lithium-ion battery. The center of the cover plate is also provided with an opening, and the second fan is arranged in the opening.

6. The temperature regulating device of claim 1, wherein the temperature regulating device is a lithium-ion battery. One side of the cover plate is also provided with a semiconductor refrigeration sheet located on one side of the support plate.

7. The temperature regulating device of claim 1, wherein the temperature regulating device is a lithium-ion battery. The inner side of the cover plate is provided with a guide rail, and the both sides of the support plate are provided with guide strips located in the guide rail.

8. The temperature regulating device of claim 1, wherein the temperature regulating device is a lithium-ion battery. One end of the support plate is provided with a wiring port.

9. The temperature regulating device of claim 1, wherein, One end of the support plate is also provided with a temperature display, and the cover plate is provided with a transparent window, and the temperature display is located on one side of the transparent window. The filter screen is arranged in the gas guide hole.

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