Battery terminal nut spacer (battery slot spacer)

The battery terminal nut spacer addresses the challenges of screw length and nut accessibility in vehicle battery installations by securely engaging the screw and preventing slippage, enhancing safety and adaptability.

DE202026000251U1Active Publication Date: 2026-05-07FURGUTH WERNER
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
FURGUTH WERNER
Filing Date
2026-01-21
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing battery cable installation on vehicle batteries faces issues with insufficient screw length, difficult nut access, and the risk of short circuits due to metallic tools, leading to increased installation time and safety hazards.

Method used

A battery terminal nut spacer, designed to fit under the nut, raises it to the battery terminal, ensuring secure engagement and clamping, thereby reducing the gap required for screw engagement and preventing nut slippage.

Benefits of technology

Facilitates easier assembly, ensures secure nut positioning, reduces the risk of short circuits, and adapts to various nut shapes and thread sizes.

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Abstract

Battery terminal nut spacer (battery slot spacer) (1), for use with a rectangular (2) or hexagonal nut (10) in a motorcycle battery, scooter battery or similar vehicle battery (6), characterized in that the spacer (1) raises the nut (2, 10) to or near the underside of the battery terminal to facilitate the insertion of a battery terminal screw (5).
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Description

Technical field

[0001] The invention relates to the field of electrical connection technology, in particular the mechanical fastening of battery cables to motorcycle batteries, scooter batteries and similar vehicle batteries.

[0002] IPC classification: H01R 4 / 00 - Electrical connection devices with contact points made by screws, nuts or other mechanical means. State of the art

[0003] Problems often arise when installing battery cables on vehicle batteries (6) with rectangular (2) or hexagonal nuts (10): The screw length is insufficient to securely engage the screw (5) due to the thickness of the ring contact (4) or multiple stacked ring contacts. Furthermore, the nut is often difficult to access, necessitating the use of metallic tools such as screwdrivers. These can cause a short circuit if they come into contact with the battery terminal (3). Object of the invention

[0004] The object of the invention is to facilitate the assembly of the battery terminal screw, to minimize the risk of a short circuit and to ensure the safe positioning of the nut. Solution

[0005] This task is accomplished by a battery terminal nut washer or battery nut spacer (1) (hereinafter referred to as the washer), which is placed under the rectangular (2) or hexagonal nut (10). The washer raises the nut to or near the underside of the battery terminal (3), thereby reducing the gap required to securely engage the battery terminal screw.

[0006] The base (1) is geometrically designed to clamp easily into the battery terminal (3) and prevent the nut from slipping. To compensate for tolerances of the battery terminal, the clamping angle can be increased by integrated clamping surfaces (13). The flanks (8) of the base center the nut on the end faces (11), and a central through-hole (7) provides space for the screw (5).

[0007] The base (1) is preferably made of a dimensionally stable plastic, but can also be made of conductive materials such as steel, aluminum, or brass, provided they fulfill the geometric and electrochemical functions. A plastic material, in particular, allows for easier clamping to the inner walls of the battery terminal, thus ensuring stable positioning of the base during assembly. Example of implementation

[0008] The base is designed for standard battery terminal nuts (2) with M5 or M6 threads and dimensions of approximately 11 x 8 x 4 mm. Alternatively, versions for hexagonal nuts (10) are also available, which are adapted accordingly.

[0009] The base (1) can be manufactured as a 3D printed part and can be produced in various heights and geometries to accommodate different battery terminal shapes and screw lengths. For larger quantities, injection molding is particularly suitable. Advantages of the invention - Easier assembly due to improved accessibility of the nut - Secure positioning of the nut through clamping action and centering - Adaptable to different nut shapes and thread sizes - Flexible material selection depending on requirements, manufacturing process and costs - Prevention of short circuits through reduced need for metallic auxiliary materials Summary

[0010] The invention relates to electrical connection technology, in particular the mechanical fastening of battery cables to motorcycle batteries, scooter batteries, and similar vehicle batteries. Problems frequently arise during battery cable installation, such as insufficient screw length and difficult-to-access nuts, which increases installation time, necessitates the use of metallic aids, and can cause short circuits. The invention aims to facilitate the installation of the battery terminal screw, minimize short circuits, and ensure the secure positioning of the nut. The solution consists of a battery terminal nut spacer (battery slot spacer) that is placed under the nut to reduce the gap and securely engage the screw. The spacer clamps into the battery terminal and prevents the nut from slipping.Advantages of the invention include easier assembly, secure positioning of the nut, avoidance of short circuits, adaptability to different nut shapes and thread sizes, and flexible material selection. Explanation of the characters Image 1: Connected battery terminal Image 2: Battery nut spacer (battery slot spacer) Figure 3: Battery nut spacer and battery terminal nut Figure 4: Battery nut spacer (battery slot spacer) for hexagonal nut Figure 5: Battery nut spacer (battery slot spacer) with hexagonal nut Figure 6: Battery nut spacer (battery slot spacer) with clamping surfaces Figure 7: Battery nut spacer (battery slot spacer) with clamping surfaces and rectangular nut Names: 1 battery nut pad; 2 battery terminal nuts; 3 battery terminals; 4 ring contacts (shown without battery cables); 5 screws; 6 Vehicle battery (section); 7 through holes; 8th flank; 9 Battery nut pad; 10 Hex nuts; 11 Front surface; 12 key area; 13 clamping surface.

Claims

[1] Battery terminal nut spacer (battery slot spacer) (1), for use with a rectangular (2) or hexagonal nut (10) in a motorcycle battery, scooter battery or similar vehicle battery (6), characterized by , that the support (1) lifts the nut (2, 10) to or near the underside of the battery terminal to facilitate the insertion of a battery terminal screw (5). [2] Document according to claim 1, characterized by , that it creates a clamping effect in the battery terminal to prevent the nut from slipping during assembly. [3] Base according to claim 1, wherein at least one integrated elastic clamping surface (13) can enhance the clamping effect in the battery terminal base. [4] Document according to any of the preceding claims, characterized by , that the flanks (8) of the base center the nut on the end faces (11) or wrench faces (12). [5] Document according to any of the preceding claims, characterized bythat it has a central through hole (7) or a countersink that provides the necessary clearance for the battery terminal screw. [6] Document according to any of the preceding claims, characterized by that it is preferably designed for battery terminal nuts (2) with M5 or M6 threads and dimensions of approximately 11 x 8 x 4 mm. [7] Document according to any of the preceding claims, characterized by that it is also suitable for hexagonal nuts and is available in various geometries and heights. [8] Document according to any of the preceding claims, characterized by that it is made of any dimensionally stable material, preferably plastic, although conductive materials may also be used.