CN-122000529-A - Cooling module and battery pack including the same

Abstract

The present invention relates to a cooling module including a supply current collecting block connected to an inlet pipe through which cooling water is introduced and distributing the cooling water, a collection current collecting block connected to a discharge pipe through which the cooling water is discharged, collecting the cooling water, and delivering the cooling water to the discharge pipe, a plurality of first passages including a portion connected to the supply current collecting block, a return current collecting block connected to the plurality of first passages and changing a flow direction of the cooling water delivered from the plurality of first passages, and a bypass passage connecting the return current collecting block and the collection current collecting block, the bypass passage bypassing the first passages, receiving the cooling water from the supply current collecting block, and delivering the cooling water to the return current collecting block through a shorter passage than the first passages, and a battery pack including the cooling module.

Inventors

• Jin Guimo
• Pu Zhongkui
• JIN SHIYUAN
• Gao Qiandai

Assignees

• 现代自动车株式会社
• 起亚株式会社

Dates

Publication Date

20260508

Application Date

20250812

Priority Date

20241105

Claims (19)

1. 1. A cooling module, comprising: A supply collecting block connected to an inlet pipe into which cooling water is introduced and distributing the cooling water; A collecting and collecting block connected to a discharge pipe discharging the cooling water, the collecting and collecting block collecting the cooling water and delivering the cooling water to the discharge pipe; A plurality of first channels including a portion connected to the supply header block and extending in one direction, the plurality of first channels being spaced apart from each other; A return current collecting block connected to the plurality of first passages and changing a flow direction of the cooling water supplied from the plurality of first passages; A plurality of second channels connecting the return manifold block and the collection manifold block, and A bypass passage bypassing the plurality of first passages, receiving the cooling water from the supply header block, and delivering the cooling water to the return header block through a shorter path than the plurality of first passages.
2. 2. The cooling module of claim 1, wherein the bypass channel is disposed between the plurality of first channels in a direction intersecting the one direction and extends from the supply header block to the return header block in the one direction.
3. 3. The cooling module of claim 1, wherein the bypass channel is spaced apart from the plurality of first channels in a direction intersecting the one direction.
4. 4. The cooling module of claim 1, wherein each first channel comprises: A first region connected to the supply collector block and extending in the one direction, and A second region located downstream of the first region with respect to a flow direction of the cooling water and extending in an opposite direction opposite to the one direction.
5. 5. The cooling module of claim 4, wherein the first channel further comprises a third region downstream of the second region with respect to a flow direction of cooling water and extending in the one direction, the third region being connected to the return current collector block.
6. 6. The cooling module of claim 5, wherein the first channel further comprises: A first connection region connecting the first region and the second region and extending in a direction intersecting the one direction, and And a second connection region connecting the second region and the third region and extending in a direction intersecting the one direction.
7. 7. The cooling module of claim 1, wherein the plurality of first channels comprises: first-first channel, and A first-second channel provided outside the first-first channel in a direction intersecting the one direction and spaced apart from the first-first channel, Wherein the flow rate of the cooling water distributed from the supply header block to the first-second channels is greater than the flow rate of the cooling water distributed from the supply header block to the first-first channels.
8. 8. The cooling module of claim 7, further comprising: at least one first distribution connection pipe connecting the supply header and the first-first channels, and At least one second distribution connection pipe connecting the supply header and the first-second channels, Wherein the number of the at least one second distribution connection pipe is greater than the number of the at least one first distribution connection pipe.
9. 9. The cooling module of claim 7, further comprising: A first distribution connection pipe connecting the supply header and the first-first channels, and A second distribution connection pipe connecting the supply header and the first-second channels, Wherein the cross-sectional area of the second distribution connection pipe is greater than the cross-sectional area of the first distribution connection pipe.
10. 10. The cooling module according to claim 7, Wherein each of the first-first channel and the first-second channel includes a first region connected to the supply collector block and extending in the one direction, The cooling module further includes: A first distribution connection pipe connecting the supply header and the first-first channels, and A second distribution connection pipe connecting the supply header and the first-second channels, Wherein the first distribution connection pipe and the second distribution connection pipe are connected to positions offset from the center portion of the first region of the first-first passage and the center portion of the first region of the first-second passage in a direction intersecting the one direction.
11. 11. The cooling module of claim 10, wherein, The first distribution connection pipe is connected to the first-first passage at a position inside the central portion of the first region of the first-first passage in a direction intersecting the one direction, The second distribution connection pipe is connected to the first-second passage at a position outside a center portion of the first region of the first-second passage in a direction intersecting the one direction.
12. 12. The cooling module of claim 7, wherein the supply header block is connected to a bypass channel at a location inboard of the plurality of first channels in a direction intersecting the one direction.
13. 13. The cooling module of claim 1, wherein the return manifold block is connected to the bypass channel at a location inboard of the plurality of first channels in a direction intersecting the one direction.
14. 14. The cooling module of claim 1, wherein each second channel is disposed outside of the plurality of first channels in a direction intersecting the one direction.
15. 15. The cooling module of claim 1, wherein the return manifold block is connected to the plurality of second channels at a location outboard of the plurality of first channels in a direction intersecting the one direction.
16. 16. The cooling module of claim 1, wherein the first plurality of channels, the second plurality of channels, and the bypass channel are formed from extruded material.
17. 17. A battery pack, comprising: a battery cell stack including battery cells stacked in one direction and extending in a direction intersecting the one direction, and A substrate supporting the battery cell stack, the substrate including a cooling module therein, Wherein the cooling module comprises: A supply collecting block connected to an inlet pipe into which cooling water is introduced and distributing the cooling water; A collecting and collecting block connected to a discharge pipe discharging the cooling water, the collecting and collecting block collecting the cooling water and delivering the cooling water to the discharge pipe; A plurality of first channels including a portion connected to the supply header block and extending in one direction, the plurality of first channels being spaced apart from each other; a return current collecting block connected to the plurality of first passages and changing a flow direction of cooling water supplied from the plurality of first passages; A plurality of second channels connecting the return manifold block and the collection manifold block, and A bypass passage bypassing the plurality of first passages, receiving the cooling water from the supply header block, and delivering the cooling water to the return header block through a shorter path than the plurality of first passages.
18. 18. The battery pack according to claim 17, wherein the bypass channel is provided between the plurality of first channels in a direction intersecting the one direction and extends from the supply current collecting block to the return current collecting block in the one direction.
19. 19. The battery pack of claim 17, wherein the bypass channel is spaced apart from the plurality of first channels in a direction intersecting the one direction.

Description

Cooling module and battery pack including the same Cross Reference to Related Applications The present application claims the benefit of priority from korean patent application No. 10-2024-0155657, filed by the korean intellectual property agency, at 11/5/2024, which is incorporated herein by reference in its entirety. Technical Field The present invention relates to a cooling module and a battery pack including the same. Background In recent years, with the increasing awareness of the crisis of the exhaustion of environment and petroleum resources, research and development of electric vehicles as environmentally friendly vehicles have been paid attention to. An electric vehicle is a vehicle driven by electricity and may include a battery pack. The battery pack may include a substrate for supporting a battery module or a battery cell stack including a plurality of battery cells formed therein. For the performance of the battery cell, it is necessary to maintain a predetermined temperature, and the structure for this purpose may be classified into an air-cooled type in which the temperature of the battery cell is adjusted by circulating air, a direct-cooled type in which the temperature of the battery cell is adjusted using a refrigerant, and a water-cooled type in which the temperature of the battery module is adjusted using water. Among the water-cooled methods, there is a method of cooling battery cells using cooling water. With respect to a structure for forming a cooling water passage through which cooling water flows, a method of forming the cooling water passage by press forming has a problem of relatively weak rigidity and a problem caused by brazing, and thus there is an increasing need to solve these problems. Further, in the water-cooled type, there is a problem in that the cooling performance of the battery cells is lowered due to the occurrence of a temperature difference according to the positions of the battery cells in the width direction, and thus it is increasingly necessary to solve the problem. Disclosure of Invention The present invention has been made to solve the above-mentioned problems occurring in the prior art, while fully maintaining the advantages achieved by the prior art. An aspect of the present invention provides a cooling module for preventing a cooling performance of a battery cell from being lowered by reducing a temperature difference according to a position of the battery cell in a width direction, and a battery pack including the cooling module. Another aspect of the present invention provides a cooling module configured to be manufactured using an extrusion (extrusion) mold instead of a press forming (press forming) mold, and a battery pack including the cooling module. The technical problems to be solved by the present invention are not limited to the above-described problems, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art to which the present invention pertains from the following description. According to one aspect of the present invention, a cooling module includes a supply header (supply manifold block) connected to an inlet pipe into which cooling water is introduced and distributing the cooling water, a collection header (collection manifold block) connected to a discharge pipe from which the cooling water is discharged, collecting the cooling water, and delivering the cooling water to the discharge pipe, a plurality of first passages including portions connected to the supply header and extending in one direction, the plurality of first passages being spaced apart from each other, a return header (return manifold block) connected to the plurality of first passages and changing a flow direction of the cooling water delivered from the plurality of first passages, and a bypass passage connecting the return header and the collection header, the bypass passage bypassing the plurality of first passages, receiving the cooling water from the supply header, and delivering the cooling water to the return header through a passage shorter than the plurality of first passages. The bypass passage may be disposed between the plurality of first passages in a direction intersecting one direction, and may extend from the supply header block to the return header block in one direction. The bypass passage may be spaced apart from the plurality of first passages in a direction intersecting one direction. Each of the first passages may include a first region connected to the supply collector block and extending in one direction, and a second region downstream of the first region with respect to a flow direction of the cooling water and extending in an opposite direction opposite to the one direction. The first passage may further include a third region located downstream of the second region with respect to a flow direction of the cooling water and connected to the return current collector block, the third region extendin