Battery Housing Side Aprons for Vibration-Stable Hold-Down
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Solution Overview
Problem
Existing battery hold-down assemblies, particularly those located at the bottom of batteries, fail to provide a stable connection due to vibrations during vehicle operation, and traditional clamp-style connectors for terminals are not secure, leading to wear and performance issues.
Innovation Solution
A hold-down assembly with aprons positioned in the middle of the battery housing for enhanced stability and secure terminals with features like female-style, threaded, or keyed connections to prevent movement and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hold-down assemblies are placed at the bottom of the battery, then the battery can be mounted using clamps, but the connection becomes unstable during vehicle operation due to vibrations
Solution Approach 1:
The patent transitions from bottom-mounted hold-down assemblies to side-mounted aprons on the battery housing. This dimensional change in mounting location provides better lateral support and stability during vehicle operation while maintaining ease of installation through the apron structure
2Ease of operation
If clamp-style connectors are used for terminals, then connection is simple to install, but the connector rotates and slips causing wear and insecure connection
Solution Approach 1:
The patent employs asymmetric terminal designs including female-style terminals with threaded portions and keyed sections. These asymmetric features prevent rotational movement and slipping of connectors while maintaining secure electrical connections, addressing the reliability issues of symmetric clamp-style connectors
3Ease of manufacture
If traditional bottom aprons are used, then hold-down assembly can be attached, but housing protrudes excessively above mounting platform reducing stability
Solution Approach 1:
The patent relocates the apron from the bottom of the battery to the sides of the housing. This dimensional relocation reduces the height of housing protrusion above the mounting platform while providing effective lateral support for stable mounting
Data Source
AI summary
A housing for an electrical power storage device is described herein. The housing includes a compartment having a base, a first wall extending from the base, and a second wall extending from the base. The housing also includes a first apron portion and a second apron portion to be used as part of a hold-down assembly for holding down the housing. The first apron portion and the second apron portion are positioned on the first wall and the second wall, respectively, between 15% and 85% of a height of the first wail and second wall from the base to a top of the first wall and the second wall.