换热装置、电池包及载具
By designing independent first and second flow channels to cover the high-temperature areas in the middle and at both ends of the battery, the problem of uneven heat dissipation in long strip batteries is solved, achieving more efficient battery temperature management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing heat exchange plates are not very effective at cooling long strip batteries, especially in the high-temperature areas at both ends of the battery, which result in uneven temperature distribution.
A heat exchange device was designed, including a plate, a first flow channel and a second flow channel. The first flow channel covers the middle area of the battery, and the second flow channel covers the high-temperature areas at both ends of the battery. The two flow channels are connected in parallel between the liquid inlet and the liquid return outlet and flow independently to improve heat dissipation efficiency.
This achieves a more uniform temperature distribution on the battery surface, avoiding insufficient heat dissipation at both ends of the battery and excessive heat dissipation in the middle, thus improving the battery's heat dissipation efficiency and safety.
Smart Images
Figure CN224519952U_ABST
Abstract
Claims
1. A heat exchange device, characterized by, For heat exchange with battery (2), including plate (1), said plate (1) comprising: The heat exchange area (101) includes a first area (1011) and a second area (1012). There are two second areas (1012) and they are distributed on both sides of the first area (1011). The first area (1011) and the two second areas (1012) are used to jointly cover the heat exchange surface (201) of the battery (2). The first flow channel (102) passes through the first region (1011); The second flow channel (103) includes a second sub-flow channel (1031) passing through the second region (1012). Each second region (1012) is provided with a corresponding second sub-flow channel (1031). The second sub-flow channels (1031) of the second flow channel (103) are connected in series or in parallel. The inlet (104) and the outlet (105) are connected in parallel between the inlet (104) and the outlet (105), and the first flow channel (102) and the second flow channel (103) are connected in parallel between the inlet (104) and the outlet (105).
2. The heat exchange device according to claim 1, wherein The first flow channel (102) includes: The first liquid inlet channel (1022) is connected to the liquid inlet (104); The first return flow channel (1023) is connected to the return port (105), and the first return flow channel (1023) and the first inlet flow channel (1022) are distributed on opposite sides of the heat exchange area (101); The first sub-channel (1021) is connected between the first inlet channel (1022) and the first return channel (1023) and passes through the first region (1011).
3. The heat exchange device according to claim 2, wherein The path of the first sub-channel (1021) is S-shaped; And / or, the number of heat exchange regions (101) is at least two, and each heat exchange region (1011) has a corresponding first sub-flow channel (1021) in its first region (1011), and the first sub-flow channels (1021) of at least two heat exchange regions (101) are connected in parallel or in series between the first liquid inlet channel (1022) and the first liquid return channel (1023); And / or, the heat exchange area (101) is used to arrange a plurality of said batteries (2) arranged sequentially along the direction from the first liquid inlet channel (1022) to the first liquid return channel (1023), the path of the first sub-channel (1021) passing through each of said batteries (2) in the heat exchange area (101).
4. Heat exchange device according to any of claims 1-3, characterized in that The second flow channel (103) also includes: The second liquid inlet channel (1032) is connected to the liquid inlet (104); The second return flow channel (1033) is connected to the return port (105), and the second inlet flow channel (1032) and the second return flow channel (1033) are distributed on opposite sides of the heat exchange area (101); The second sub-channel (1031) of the second flow channel (103) is connected in series or in parallel between the second inlet flow channel (1032) and the second return flow channel (1033).
5. The heat exchange device according to claim 4, wherein The number of heat exchange zones (101) is at least two, and the second region (1012) of each heat exchange zone (101) is provided with a corresponding second sub-flow channel (1031). The second sub-flow channels (1031) of at least two heat exchange zones (101) are connected in parallel or in series between the second liquid inlet channel (1032) and the second liquid return channel (1033). And / or, the heat exchange region (101) is used to arrange a plurality of said batteries (2) arranged sequentially along the direction from the second liquid inlet channel (1032) to the second liquid return channel (1033), and the path of the second sub-channel (1031) passes through each of said batteries (2) in the heat exchange region (101).
6. The heat exchange device according to any one of claims 1 to 3, wherein The plate (1) includes: The flow channel plate (106) is provided with a first groove (1061) and a second groove (1062); A sealing plate (107) is connected to the flow channel plate (106) and closes the first groove (1061) and the second groove (1062) so that one of the first groove (1061) and the second groove (1062) forms the first flow channel (102) and the other forms the second flow channel (103).
7. The heat exchange device according to claim 6, wherein The first groove (1061) and the second groove (1062) intersect, and at the intersection, the first groove (1061) includes a first groove segment (1061a) and a second groove segment (1061b) distributed on both sides of the second groove (1062). The sealing plate (107) is provided with a first through hole (1071) communicating with the first groove segment (1061a) and a second through hole (1072) communicating with the second groove segment (1061b). The heat exchange device (100) further includes a connecting member (108) that connects the first through hole (1071) and the second through hole (1072).
8. The heat exchange device according to claim 7, wherein The connecting member (108) is a cover plate, which is sealed over the sealing plate (107), and the first through hole (1071) and the second through hole (1072) are both located inside the cover plate; Alternatively, the connecting element (108) is a connecting pipe, and the two ends of the connecting pipe are respectively connected to the first through hole (1071) and the second through hole (1072).
9. A battery pack, characterized by, Includes a battery (2) and a heat exchange device (100) as described in any one of claims 1-8; The battery (2) has corresponding terminals (202) at both ends, the portion between the two ends of the battery (2) is in contact with the first region (1011), and the portions at both ends of the battery (2) are in contact with the two second regions (1012) respectively.
10. A carrier, characterized by It includes the heat exchange device (100) as described in any one of claims 1-8 or the battery pack as described in claim 9.