Battery device and electric device

By setting overflow holes on the bottom plate of the housing, structural adhesive flows between the bottom plate and the bottom protective plate, solving the problems of bottom protective plate deformation and abnormal noise, achieving a more stable connection, and improving the structural strength and performance of the battery device.

CN224520038UActive Publication Date: 2026-07-17CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The suspension of the middle area of ​​the bottom protective plate of the battery device causes deformation and abnormal noise. In the existing technology, the connection between the bottom protective plate and the housing is not stable enough, which easily leads to out-of-range contour and vibration noise.

Method used

An overflow hole is provided on the bottom plate of the enclosure. The structural adhesive flows into the space between the bottom plate and the bottom protective plate through the overflow hole, thereby fixing the battery module and the bottom protective plate and preventing the bottom protective plate from sagging and vibrating in the middle.

Benefits of technology

It effectively prevents deformation and abnormal noise of the bottom guard plate, improves the connection strength and stability between the bottom guard plate and the box body, and reduces the need for a buffer structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224520038U_ABST
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Abstract

The application discloses a battery device and a power utilization device, and relates to the technical field of batteries, wherein the battery device comprises a box body, a battery module and a bottom protection plate, the box body is provided with a mounting space, the bottom plate of the box body is provided with a glue overflow hole communicating with the mounting space; the battery module is arranged in the mounting space and is bonded to the bottom plate; the bottom protection plate is located below the bottom plate; wherein the battery module is fixed in the mounting space by structural glue in the mounting space, the glue overflow hole is arranged to allow the structural glue in the mounting space to pass through, and part of the structural glue is injected between the bottom plate and the bottom protection plate to bond the bottom protection plate and the bottom plate. The technical scheme of the application can avoid the problems of out-of-tolerance profile of the bottom protection plate and abnormal sound.
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Claims

1. A battery device, characterized by, include: The box body has an installation space, and the bottom plate of the box body has an overflow hole that communicates with the installation space; A battery module, wherein the battery module is disposed in the mounting space and is adhered to the base plate; as well as A bottom protective plate, which is located below the bottom plate; The battery module is fixed in the mounting space by structural adhesive in the mounting space. The overflow hole is set to allow the structural adhesive in the mounting space to pass through, so that part of the structural adhesive is injected between the bottom plate and the bottom cover plate to bond the bottom cover plate and the bottom plate.

2. The battery device of claim 1, wherein The bottom protective plate has an injection groove on the side facing the bottom plate. The injection groove is opposite to the overflow hole, and the cross-sectional area of ​​the injection groove is larger than the area of ​​the overflow hole.

3. The battery device of claim 2, wherein The bottom protective plate includes: The plate body is disposed opposite to the base plate; and An adhesive container is fixed to the side of the plate facing the base plate and has the adhesive injection groove formed thereon.

4. The battery device of claim 3, wherein The adhesive-containing component abuts against the base plate; And / or, the adhesive container has an overflow port on one side wall near the base plate that communicates with the adhesive injection groove.

5. The battery device of claim 3, wherein The surface of the plate is provided with a limiting groove, and the adhesive-containing component is disposed in the limiting groove.

6. The battery device of claim 5, wherein The cross-sectional area of ​​the limiting groove increases along the direction from the bottom of the groove to the opening of the groove.

7. The battery device of claim 2, wherein The bottom protective plate has a recessed glue injection groove on the side facing the bottom plate.

8. The battery device as defined in any one of claims 1 to 7, characterized by The diameter of the overflow hole is set to 5mm to 15mm.

9. The battery device as defined in any one of claims 1 to 7, characterized by The bottom protective plate has a connection hole on its edge area. The battery device also includes a locking accessory, which passes through the connection hole and is connected to the housing.

10. An electrical device, characterized by Includes the battery device as described in any one of claims 1 to 9.