Detachable Battery Wrapping With Slit And Bonding
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Solution Overview
Problem
Existing detachable battery structures for portable electronic devices, such as cameras, face challenges in safely removing non-rigid battery packs without causing damage, as they often result in bending stress during detachment.
Innovation Solution
A detachable battery structure featuring a wrapping material with a slit and a housing bonded to the wrapping in a specific area, allowing the battery to be removed without bending stress by pulling up a picking portion, which is designed to minimize the bonded area and facilitate easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is completely bonded to the housing for secure attachment, then the reliability of battery attachment is improved, but the ease of operation for battery removal deteriorates
Solution Approach 1:
The bonding between housing and wrapping is divided into two distinct regions: a first bonding region with strong adhesive force for secure attachment, and a second bonding region with weak adhesive force for easy removal. This segmentation allows the battery to be firmly held during use while enabling simple detachment when needed.
Solution Approach 2:
Different adhesive properties are applied to different regions of the wrapping. The first region (opposite the slit) has strong bonding characteristics while the second region (near the slit) has weak bonding characteristics. This local differentiation enables both secure attachment and easy removal operations.
2Reliability
If the battery is completely bonded to the housing for secure attachment, then the reliability of battery attachment is improved, but the battery may be damaged during removal
Solution Approach 1:
The bonding area is segmented into strong and weak bonding regions, allowing the battery to be securely attached during use while enabling damage-free removal by peeling from the weak bonding region first.
Solution Approach 2:
The slit is pre-formed in the wrapping at a location that corresponds to the weak bonding region. This preliminary structural preparation allows the peeling process to start from the correct location, preventing bending stress and damage to the battery during removal.
3Ease of operation
If the wrapping is made thin for flexibility, then the ease of operation for battery removal is improved, but the wrapping strength deteriorates
Solution Approach 1:
The wrapping exhibits different thickness characteristics at different locations: it is thinner at the slit formation position to facilitate easy tearing and removal, while maintaining sufficient thickness in other areas to provide adequate structural strength and protection for the battery.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the safe and efficient removal of the battery from the housing without causing damage, reducing the risk of bending stress and allowing for easy replacement of the battery pack.
Implementation Method 1
the housing is bonded to the wrapping in a part of area
Data Source
AI summary
A detachable structure of a battery to be attached to a case includes a wrapping of the battery and a housing of the case. The wrapping wraps the battery and comprises a slit. The housing houses the battery wrapped in the wrapping. The housing is bonded to the wrapping in a part of area.