Handheld Microphone Battery Cover Structure for Secure Retention
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Solution Overview
Problem
Existing handheld microphones face issues with battery displacement during impact, power interruptions, and operational complexity due to limited space and structural constraints, making reliable battery retention and easy replacement challenging.
Innovation Solution
A microphone design featuring a base unit with a battery housing chamber, a cylindrical grip that covers the chamber, and a contact piece with protruding portions to secure the battery, ensuring stable contact and easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complicated structure or many components are adopted for securing the battery, then battery retention reliability improves, but device size increases
Solution Approach 1:
The contact piece integrates both the electrical contact function and the battery securing function into a single component. The protruding portion of the contact piece simultaneously makes electrical contact with the battery terminal and prevents battery displacement by engaging with the battery body, eliminating the need for separate securing components.
Solution Approach 2:
The contact piece serves multiple functions: it provides electrical contact for power supply, secures the battery in position through its protruding portion, and prevents battery displacement during impact. This multi-functional design achieves reliable battery retention without adding extra components that would increase device size.
2Ease of operation
If the outer diameter of the microphone is reduced for better portability, then ease of operation improves, but the space for battery securing components decreases
Solution Approach 1:
By combining the electrical contact function and battery securing function into the single contact piece, the design eliminates the need for additional securing components that would occupy valuable space within the compact battery housing chamber, enabling smaller device dimensions while maintaining secure battery retention.
3Ease of operation
If frequent battery replacement is allowed, then ease of operation improves, but the risk of component damage increases
Solution Approach 1:
The integrated contact piece design reduces the number of components that could potentially fail during battery replacement. With fewer separate securing components, there are fewer points of failure, and the simplified structure is more resistant to damage from frequent user handling and replacement operations.
Data Source
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AI summary
A handheld microphone 1 includes: a base unit 3 having a sound collection unit 2 attached to one end side, and includes a battery housing chamber 30; a grip 4 that is attached to the base unit 3, and covers the battery housing chamber 30 in an openable and closable manner; and a battery cover 5 that has a first surface to come into contact with the battery 10 housed in the battery housing chamber 30. The battery cover 5 has a protruding portion 52 provided on a second surface opposite to the first surface, and, in a state where the battery housing chamber 30 is closed by the grip 4, the protruding portion 52 is in contact with an inner peripheral surface of the grip 4.