EP-4738546-A1 - THERMAL MANAGEMENT SYSTEM

Abstract

A thermal management system according to an embodiment of the present invention includes a battery pack in which batteries are built, a circuit part mounted on the battery pack and configured to perform a control on the battery pack, and a thermoelectric element electrically connected to the circuit part and configured to perform cooling and heating for the battery pack between the battery pack and the circuit part.

Inventors

• JEONG, DOO HO

Assignees

• LG Energy Solution, Ltd.

Dates

Publication Date

20260506

Application Date

20240730

Claims (13)

1. A thermal management system comprising: a battery pack in which batteries are built; a circuit part mounted on the battery pack and configured to perform a control on the battery pack; and a thermoelectric element electrically connected to the circuit part and configured to perform cooling and heating for the battery pack between the battery pack and the circuit part.
2. The thermal management system of claim 1, wherein the thermoelectric element is a Peltier element.
3. The thermal management system of claim 1, further comprising a heatsink connected to the thermoelectric element between the circuit part and the battery pack.
4. The thermal management system of claim 3, wherein the heatsink comprises: a first heatsink disposed between the circuit part and the thermoelectric element; and a second heatsink disposed between the thermoelectric element and the battery pack.
5. The thermal management system of claim 4, wherein the thermoelectric element has one surface that is in contact with a bottom surface of the first heatsink and the other surface that is in contact with a top surface of the second heatsink.
6. The thermal management system of claim 4, wherein the thermoelectric element is configured to cool the battery pack through the second heatsink according to a first control of the circuit part.
7. The thermal management system of claim 6, wherein the thermoelectric element is configured to heat the battery pack through the second heatsink according to a second control of the circuit part, wherein the second control has a current direction opposite to that of the first control.
8. The thermal management system of claim 4, wherein the first heatsink is provided to allow a refrigerant to flow.
9. The thermal management system of claim 8, wherein the first heatsink comprises: an inlet through which the refrigerant is introduced; and an outlet through which the refrigerant is discharged.
10. The thermal management system of claim 8, wherein the circuit part is configured to allow the refrigerant to flow to the first heatsink when a temperature of the first heatsink is equal to or greater than a predetermined temperature.
11. The thermal management system of claim 8, wherein the circuit part is configured to stop the control on the thermoelectric element when a temperature of the first heatsink is equal to or greater than a predetermined temperature.
12. The thermal management system of claim 4, further comprising a thermal conductive member which extends from the second heatsink to a space between the batteries inside the battery pack to cool and heat the batteries.
13. The thermal management system of claim 12, wherein the second heatsink and the thermal conductive member are integrated with each other.

Description

TECHNICAL FIELD CROSS-REFERENCE TO RELATED APPLICATION The present application claims the benefit of the priority of Korean Patent Application No. 10-2023-0101857, filed on August 3, 2023, which is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present invention relates to a thermal management system. BACKGROUND ART Research and development on power generation based on Eco-friendly energy sources are being conducted to solve the problem of environmental pollution and energy source problems caused by the depletion of the petroleum resources. Particularly, research on secondary batteries is actively conducted, and research is being conducted on various aspects of secondary batteries, such as materials, structures, processes, and stability. A plurality of secondary batteries may be installed and managed into a module or pack unit and undergo repeated charging and discharging processes. It is necessary to appropriately control heat generation in a module or pack during the charging and discharging process to ensure stability. According to the related art, cooling has been performed using a fan, cooling water, or a natural cooling manner. In this case, a separate structure has to be installed, and there is a problem of difficulty in performing adaptively and rapidly cooling and heating. DISCLOSURE OF THE INVENTION TECHNICAL PROBLEM An object of the present invention for solving the above problems is to provide a thermal management system that is capable of performing adaptively and quickly performing cooling and heating. TECHNICAL SOLUTION A thermal management system according to an embodiment of the present invention includes a battery pack in which batteries are built, a circuit part mounted on the battery pack and configured to perform a control on the battery pack, and a thermoelectric element electrically connected to the circuit part and configured to perform cooling and heating for the battery pack between the battery pack and the circuit part. ADVANTAGEOUS EFFECTS According to the preferred embodiment of the present invention, adaptive and rapid cooling and heating may be performed. According to the preferred embodiment of the present invention, the battery pack may operate within the optimal temperature range to improving the durability and stability. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual view of a thermal management system according to an embodiment of the present invention.FIG. 2 is a conceptual view of a thermal management system according to another embodiment of the present invention.FIG. 3 is a conceptual view of a thermal management system according to further another embodiment of the present invention. MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily carry out the present invention. However, the present invention may be implemented in several different forms and is not limited or restricted by the following examples. In order to clearly explain the present invention, detailed descriptions of portions that are irrelevant to the description or related known technologies that may unnecessarily obscure the gist of the present invention have been omitted, and in the present specification, reference symbols are added to components in each drawing. In this case, the same or similar reference numerals are assigned to the same or similar elements throughout the specification. Also, terms or words used in this specification and claims should not be restrictively interpreted as ordinary meanings or dictionary-based meanings, but should be interpreted as meanings and concepts conforming to the scope of the present invention on the basis of the principle that an inventor may properly define the concept of a term to describe and explain his or her invention in the best ways. FIG. 1 is a conceptual view of a thermal management system according to an embodiment of the present invention. A thermal management system 1 may include a battery pack 10. The battery pack 10 may have built-in batteries. The thermal management system 1 may include a circuit part 20. The circuit part 20 may be mounted on the battery pack 10. The circuit part 20 may be configured to perform a control for the battery pack 10. For example, the circuit part 20 may perform a management control for the battery pack 10 and also perform a control for the cooling and heating of the battery pack 10. The thermal management system 1 may include a thermoelectric element 30. The thermoelectric element 30 may be electrically connected to the circuit part 20. The thermoelectric device 30 may perform the cooling and heating for the battery pack 10 between the battery pack 10 and the circuit part 20. The thermoelectric element 30 may be a Peltier element. The thermal management system 1 may include a heatsink 40. The heatsink 40 may be connecte