A battery limiting block for electric vehicles

By incorporating cushioning pads and an elevated waterproof structure at the corners and bottom of the battery box, the vibration problem of the electric vehicle battery box on bumpy roads is solved, and rainwater is prevented from entering, thus improving the safety of the battery box.

CN224582374UActive Publication Date: 2026-07-31GUANGDONG JUNQIANG MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JUNQIANG MOULD CO LTD
Filing Date
2025-09-12
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing electric vehicle battery boxes are susceptible to vibration on bumpy roads, which can affect the battery cells and connections. Furthermore, the sealed structure may allow rainwater to enter, posing a safety hazard.

Method used

Buffer structures are installed at the corners and bottom of the battery box, combined with elevated waterproof and drainage structures, to provide multi-dimensional cushioning and waterproof functions.

Benefits of technology

Reduce the impact of vibration on the battery cell and connections, prevent rainwater immersion, and improve safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application belongs to the technical field of electric vehicle accessories, specifically relating to an electric vehicle battery limiting block. Its features include: a main frame, a limiting border at the upper edge of the main frame defining a battery slot; corner buffers at the corners of the battery slot; and a raised waterproof structure at the bottom of the battery slot. The electric vehicle battery limiting block disclosed in this application can reduce the impact of vibration on the internal battery cells and their electrical connections, and prevent rainwater from soaking the internal battery cells or creating safety hazards.
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Description

Technical Field

[0001] This application belongs to the field of electric vehicle parts technology, specifically relating to an electric vehicle battery limiting block. Background Technology

[0002] The battery boxes in current electric vehicles generally lack cushioning capabilities. When driving on bumpy roads, vibrations from the road surface can affect the cells and connections inside the battery box. Furthermore, existing battery boxes typically use a sealed structure, allowing rainwater to seep in through the cover, potentially causing water damage to the cells or short circuits between the positive and negative terminals, creating safety hazards. Utility Model Content

[0003] In view of this, this application provides an electric vehicle battery limiting block to solve all or part of the technical problems described in the background section of this application.

[0004] The innovative ideas of this application are as follows: 1. By setting buffer structures at the corners and bottom of the battery box, a multi-dimensional buffering effect is formed to prevent the battery cells and internal connections from being affected by vibration. 2. By setting up elevated waterproof and drainage structures inside the battery compartment, rainwater entering the battery box will not soak into the battery cells and can be drained from the battery box in a timely manner.

[0005] The solution provided in this application to resolve its technical problem is as follows: An electric vehicle battery limiting block is characterized by: a main frame, a limiting frame provided on the upper edge of the main frame, and a battery slot defined within the limiting frame; corner buffers provided at the corners of the battery slot; and an elevated waterproof structure provided on the bottom of the battery slot.

[0006] Preferably, the bottom of the main frame is provided with several snap-fit ​​connectors.

[0007] Preferably, a drain outlet is provided on the bottom of the groove of the main frame corresponding to the clip head of the clip connector.

[0008] Preferably, the limiting frame protrudes inward at the corners to form corner buffers.

[0009] Preferably, the elevated waterproof structure includes at least two transverse elevated beams and at least two longitudinal elevated beams; the transverse and longitudinal elevated beams are arranged to intersect each other and define a number of water collection pools.

[0010] Preferably, the battery compartment is also provided with several limiting beams; the limiting beams extend from the corner buffer pack to the transverse overhead beam or the longitudinal overhead beam.

[0011] Preferably, the bottom of the battery compartment is provided with several bottom buffer packs.

[0012] Preferably, the bottom of the battery compartment is provided with several drainage holes.

[0013] Beneficial technical effects: The electric vehicle battery limiting block disclosed in this application, through the buffer pack structure set at the corners and bottom and the elevated waterproof structure set in the battery compartment, can reduce the impact of vibration on the internal battery cells and their electrical connections, and prevent rainwater from soaking the internal battery cells or causing safety hazards.

[0014] The technical solution and technical effects of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 : First-view structural diagram of the electric vehicle battery limiting block; Figure 2 Schematic diagram of the second-view structure of the electric vehicle battery limiting block; Icon description: 1-Main frame; 11-Limited border; 12-Battery slot; 13-Corner cushioning pack; 14- Elevated waterproof structure, 141- Horizontal elevated beam, 142- Longitudinal elevated beam, 143- Water collection tank; 15-Card connector; 16 - Drainage outlet; 17-Limiting beam; 18-Bottom buffer pack; 19-Drain hole. Detailed Implementation

[0016] Please see Figures 1-2 The electric vehicle battery limiting block disclosed in this application includes a main frame 1. A limiting frame 11 is provided on the upper edge of the main frame 1, and a battery slot 12 is defined within the limiting frame 11. Corner buffers 13 are provided at the corners of the battery slot 12, and several bottom buffers 18 are provided on the outside of the bottom of the battery slot 12. An elevated waterproof structure 14 is provided on the bottom of the battery slot 12.

[0017] The elevated waterproof structure 14 includes at least two transverse elevated beams 141 and at least two longitudinal elevated beams 142; the transverse elevated beams 141 and longitudinal elevated beams 142 are arranged to intersect each other and define a number of water collection pools 143. A number of drainage holes 19 are provided on the bottom of the battery tank 12.

[0018] Individual battery cells, such as lithium-ion or lead-acid battery packs, can be secured to the overhead beam by the battery compartment 12 and the corner buffer packs 13. When subjected to external vibrations, such as impacts, collisions, or road bumps, the corner buffer packs 13 and the bottom buffer packs 18 can provide cushioning through recoverable elastic deformation, preventing the internal cells and their electrical and mechanical connections from being affected by vibrations. Simultaneously, when external liquids, such as rainwater, seep into the battery compartment through the gap between the battery cover and the battery compartment, the accumulated water can be collected in the bottom water pool 143 and discharged from the battery compartment 12 through the drain hole 19.

[0019] To enhance the reliability of the fixed installation of the battery cells, several limiting beams 17 are also provided inside the battery compartment 12; the limiting beams 17 extend from the corner buffer packs 13 to the transverse overhead beams 141. The battery cells are confined within the battery compartment 12 by the limiting beams 17, the corner buffer packs 13, and the limiting frame 11.

[0020] To prevent the electric vehicle battery limiting block from sliding at the installation location of the electric vehicle, several snap-fit ​​connectors 15 are provided at the bottom of the main frame 1, and a drain outlet 16 is provided on the bottom of the groove of the main frame 1 corresponding to the snap-fit ​​head of the snap-fit ​​connector 15.

[0021] The technical solutions and effects of this application have been described in detail above with reference to the accompanying drawings and specific embodiments. It should be noted that those skilled in the art can develop other embodiments based on this. Any simple modifications and equivalent substitutions that do not depart from the innovative concept of this application are covered by this application and fall within the protection scope of this patent.

Claims

1. A battery limiting block for electric vehicles, characterized in that: Includes a main frame (1), and a limiting frame (11) is provided on the upper edge of the main frame (1), and a battery slot (12) is defined within the limiting frame (11). The corners of the battery compartment (12) are provided with corner buffer bags (13), and the bottom of the battery compartment (12) is provided with an elevated waterproof structure (14).

2. The electric vehicle battery limiting block according to claim 1, characterized in that: The bottom of the main frame (1) is provided with several snap-fit ​​connectors (15).

3. The electric vehicle battery limiting block according to claim 2, characterized in that: A drain outlet (16) is provided on the bottom of the groove of the main frame (1) corresponding to the clip head of the clip head (15).

4. The electric vehicle battery limiting block according to claim 1, characterized in that: The limiting frame (11) protrudes inward at the corner to form the corner buffer bag (13).

5. The electric vehicle battery limiting block according to claim 1, characterized in that: The elevated waterproof structure (14) includes at least two transverse elevated beams (141) and at least two longitudinal elevated beams (142). The transverse elevated beams (141) and longitudinal elevated beams (142) are intersected and define several water collection pools (143).

6. The electric vehicle battery limiting block according to claim 5, characterized in that: The battery compartment (12) is also provided with several limiting beams (17). The limiting beam (17) extends from the corner buffer bag (13) to the transverse overhead beam (141).

7. The electric vehicle battery limiting block according to claim 1, characterized in that: The bottom of the battery compartment (12) is provided with several bottom buffer packs (18).

8. The electric vehicle battery limiting block according to claim 1, characterized in that: The bottom of the battery compartment (12) is provided with several drainage holes (19).