电池托盘、电池包和车辆
By designing an independent heat exchange channel in the battery tray that connects to the heat exchange plate, the problem of low space utilization in the battery pack is solved, achieving efficient heat exchange and improved safety performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAOMI EV TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the heat exchange system inside the battery pack requires the arrangement of connecting pipes, which occupies space and results in low space utilization, affecting battery energy density and safety performance.
Two independent heat exchange channels are formed by crossbeams and connected to the heat exchange plate through heat exchange inlet, outlet and docking interface. The heat exchange medium is circulated by the battery tray itself to avoid heat exchange and thermal runaway.
It improves the space utilization and safety performance of the battery pack, ensures the effective utilization of the heat exchange medium, prevents the effects of thermal runaway, and enhances the battery energy density and heat exchange efficiency.
Smart Images

Figure CN224520105U_ABST
Abstract
Claims
1. A battery tray, characterized by, The battery tray includes a crossbeam, which forms two independent sets of heat exchange channels. The crossbeam is provided with a heat exchange inlet, a heat exchange outlet, a first pair of interfaces, and a second pair of interfaces. Each set of heat exchange channels is connected to its corresponding heat exchange inlet, heat exchange outlet, first pair of interfaces, and second pair of interfaces. The heat exchange inlet is connected to the liquid inlet of the heat exchange plate via the heat exchange channels and the first pair of interfaces. The heat exchange outlet is connected to the liquid outlet of the heat exchange plate via the heat exchange channels and the second pair of interfaces.
2. The battery tray of claim 1, wherein, The heat exchange channel includes an inlet channel and an outlet channel. The inlet channel is connected to the heat exchange inlet and the first pair of interfaces. The liquid outlet channel is connected to the liquid inlet channel, the second pair of interfaces, and the heat exchange outlet, or... The liquid outlet channel is connected to the second pair of interfaces and the heat exchange outlet. The crossbeam includes a partition plate that divides the heat exchange channel into the liquid inlet channel and the liquid outlet channel, which are isolated from each other.
3. The battery tray of claim 1 or 2, wherein, The crossbeam also includes a heat insulation body, which is disposed between the two sets of heat exchange channels.
4. The battery tray of claim 1, wherein, The crossbeam includes a beam body and a baffle plate. The beam body forms a hollow space, and the baffle plate is arranged in the hollow space and divides the hollow space into a first space and a second space, respectively forming the heat exchange channel. The first space and the second space, on the side away from the baffle, are respectively provided with the heat exchange inlet, the heat exchange outlet, the first pair of interfaces, and the second pair of interfaces, and the first space and the second space are connected to their respective heat exchange inlets, heat exchange outlets, first pair of interfaces, and second pair of interfaces.
5. The battery tray of claim 4, wherein, The baffle is equipped with a heat insulation material.
6. The battery tray of claim 3, wherein, The crossbeam includes a first beam and a second beam, which are arranged at intervals and each has the heat exchange channel. The first beam and the second beam are provided with the heat exchange inlet, the heat exchange outlet, the first pair of interfaces and the second pair of interfaces on opposite sides of each other. The heat insulation body is arranged between the first beam and the second beam and is bonded to the first beam and the second beam.
7. The battery tray of claim 2, wherein, The first pair of interfaces and the second pair of interfaces are each configured in multiple and equal quantities. The first pair of interfaces and the second pair of interfaces are arranged in a column corresponding to each other. The first pair of interfaces and the second pair of interfaces located in the same column are used to communicate with the liquid inlet and liquid outlet of the same heat exchange plate.
8. The battery tray of claim 7, wherein, The liquid inlet channel includes multiple interconnected liquid inlet branch channels, each of the liquid inlet branch channels corresponding to multiple first pair interfaces, and the multiple first pair interfaces are arranged at intervals along the extension direction of the liquid inlet branch channel; and / or, The liquid outlet channel includes multiple interconnected liquid outlet branch channels, each of the liquid outlet branch channels is connected to multiple second pairs of interfaces, and the multiple second pairs of interfaces are arranged at intervals along the extension direction of the liquid outlet branch channel.
9. A battery pack, characterized by, The battery pack includes multiple battery cells and multiple heat exchange plates, with at least one battery cell arranged between any two adjacent heat exchange plates. The battery pack also includes a battery tray according to any one of claims 1-8. The battery cells and heat exchange plates are arranged on both sides of the crossbeam. The liquid inlet and liquid outlet of the heat exchange plate are connected to the heat exchange channel through a first pair of interfaces and a second pair of interfaces, respectively.
10. The battery pack of claim 9, wherein, The heat exchange plates are arranged perpendicular to the crossbeam, and multiple heat exchange plates are arranged at intervals along the extension direction of the crossbeam.
11. The battery pack of claim 9, wherein, The battery pack includes an inlet pipe and an outlet pipe. The battery tray includes a tray body with a through hole. The two opposite ends of the crossbeam are sealed to the tray body. The inlet pipe and the outlet pipe extend into the enclosed space formed by the tray body through corresponding through holes to connect to the heat exchange inlet and the heat exchange outlet, respectively.
12. A vehicle characterized by comprising: The vehicle includes the battery pack according to any one of claims 9-11.