Elastic Operation Member Prevents Accidental Battery Detachment
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Solution Overview
Problem
The existing detachable battery mounting structure for electronic devices can inadvertently release the locking mechanism when a force is applied in the opposite direction to the intended locking direction, leading to unintended battery detachment.
Innovation Solution
The housing of the electronic device incorporates an elastic operation member with a plate-like main body, an operation protrusion, a projection, and protruded portions that engage with recessed portions on the battery, and includes stoppers to restrict movement, allowing the operation member to move between locking and release positions only when a perpendicular force is applied, preventing accidental locking release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple locking button structure is used, then ease of operation is improved, but reliability deteriorates because locking may be released unintentionally when force is applied in the opposite direction
Solution Approach 1:
The operation member is made from an elastic body, transforming it from a static rigid component to a dynamic flexible one. This allows the member to deform elastically when force is applied perpendicular to the moving direction, enabling the projection to move over the stopper and preventing unintended locking release while maintaining simple operation
Solution Approach 2:
The patent changes the physical state parameter of the operation member from rigid to elastic. By using an elastic body, the member can temporarily change its shape when subjected to perpendicular force, allowing the projection to clear the stopper and return to its original position, thus preventing accidental locking release
2Manufacturing precision
If the operation member is made rigid, then manufacturing precision is improved, but reliability deteriorates because the member cannot absorb perpendicular forces without moving in the wrong direction
Solution Approach 1:
The operation member transitions from a rigid material state to an elastic material state. This parameter change allows the member to maintain precise engagement features while gaining the ability to deform temporarily under perpendicular force, preventing unintended movement in the locking direction
Solution Approach 2:
The operation member becomes dynamically flexible rather than statically rigid. The elastic body can adapt its shape when force is applied perpendicular to the moving direction, allowing the projection to move over the stopper and return, thus maintaining reliability while preserving manufacturing precision of engagement features
3Reliability
If stoppers are added to restrict movement, then reliability is improved, but device complexity increases
Solution Approach 1:
The stopper function is merged with the holder structure rather than being a separate independent component. The holder accommodates the operation member and includes the stopper as an integrated feature, reducing overall device complexity while maintaining the reliability benefit of restricted movement
Solution Approach 2:
The projection of the operation member acts as an intermediary between the stopper and the locking mechanism. When force is applied perpendicular to the moving direction, the projection moves over the stopper, mediating the interaction and preventing unintended locking release without requiring complex additional mechanisms
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
This configuration ensures that the battery locking is suppressed even when forces are applied unintentionally, maintaining secure engagement between the operation member and battery, thereby preventing unintended detachment.
Implementation Method 1
The operation member is made from an elastic body to be movable between the first position and the second position, in a case where the operation member is present at a position either the first position or the second position, when a force is applied to the operation protrusion in a direction perpendicular to the predetermined direction, the main body is bent in the perpendicular direction and the projection moves over the stopper
Data Source
AI summary
A holder includes stoppers that restrict movement of an operation member in a predetermined direction by an amount exceeding a predetermined amount by abutting against a projection of the operation member when the operation member is moved in the predetermined direction. The operation member is made from an elastic body to be movable between the first position and the second position, in a case where the operation member is present at a position either the first position or the second position, when a force is applied to the operation protrusion in a direction perpendicular to the predetermined direction, the main body is bent in the perpendicular direction and the projection moves over the stopper.