Box structure, battery pack and vehicle

By setting up a partition beam and integrating a current collection cavity inside the battery pack housing, the problem of low space utilization was solved, achieving high energy density and compact layout of the battery pack, simplifying the manufacturing process and reducing costs.

CN224520104UActive Publication Date: 2026-07-17XIAOMI EV TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAOMI EV TECH CO LTD
Filing Date
2025-06-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The space utilization rate inside the existing battery pack is not high, which affects the energy density of the entire pack.

Method used

A partition beam is installed inside the housing to divide the housing into first and second housing cavities. A current collector is integrated in the partition beam and connected to the cold plate through the total inlet and total outlet to achieve heat dissipation or heating of individual cells. This eliminates the need for separate current collector components and improves space utilization.

Benefits of technology

By integrating the current collector, the space utilization of the housing is improved, the manufacturing process is simplified, the cost is reduced, and the compact arrangement and independent thermal management of individual cells are achieved, thereby increasing the energy density of the battery pack.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224520104U_ABST
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Abstract

This disclosure relates to a housing structure, a battery pack, and a vehicle. The housing structure includes: a housing having a cavity for accommodating individual batteries; a partition beam disposed in the housing and dividing the cavity into a first cavity and a second cavity, the partition beam including a main beam and a current collector beam connected together, the current collector beam having a current collector cavity and a total inlet and a total outlet communicating with the current collector cavity; and a cold plate communicating with the current collector cavity, wherein at least one cold plate is disposed in both the first cavity and the second cavity. This housing structure has high space utilization and is suitable for improving the energy density of the battery pack.
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