Cam-Lock Housing Assembly for User-Replaceable Battery Access
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Solution Overview
Problem
Traditional electronic devices lack the ability for user-replaceable internal elements, particularly batteries, which complicates maintenance and operation.
Innovation Solution
An electronic device design featuring a first and second structure connected by a fixing assembly with cams and an adjustment element, allowing easy separation and reconnection through a rotating mechanism that disengages engaging parts, facilitating the replacement of internal components like batteries without affecting the device's appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If traditional electronic devices use built-in non-replaceable batteries, then device structure is simple and manufacturing is easy, but user replacement and maintenance become difficult
Solution Approach 1:
The device is divided into separable modules: a first structure (housing) and a second structure (component carrier) that can be independently removed and replaced. This segmentation allows the battery and other internal components to be housed in a removable second structure, enabling easy user replacement while maintaining a simple overall device design.
Solution Approach 2:
The fixing assembly incorporates a dynamic cam mechanism with rotatable adjustment elements that transition between locked and unlocked states. This dynamic mechanism provides a simple yet effective means of securing and releasing the second structure from the first structure, enabling easy maintenance without complex tools or procedures.
2Ease of operation
If a removable connection mechanism is added to enable component replacement, then ease of repair improves, but device complexity increases
Solution Approach 1:
The cam mechanism utilizes curved cam surfaces that convert rotational motion of the adjustment element into linear displacement for locking and unlocking. This curved surface design provides smooth, controlled engagement and disengagement of the engaging parts, enabling easy component replacement without requiring complex mechanical systems.
Solution Approach 2:
The fixing assembly is designed to be user-operable without requiring external tools or assistance. The adjustment element can be directly manipulated by the user to rotate the cam mechanism, which automatically engages or disengages the engaging parts, providing a self-service replacement system that simplifies operation.
3Reliability
If engaging parts are designed for secure connection, then connection reliability improves, but ease of separation deteriorates
Solution Approach 1:
The cam mechanism provides a dynamic locking system that transitions between a locked state (when adjustment elements are in the first position) and an unlocked state (when adjustment elements are rotated to the second position). In the locked state, the cam surfaces provide secure engagement with high connection reliability. When rotated, the cam surfaces automatically disengage, enabling easy separation without compromising either reliability or ease of operation.
Solution Approach 2:
The cam mechanism is designed to automatically prepare for separation by using the rotation of adjustment elements to pre-load and then release the engaging parts. As the adjustment elements rotate, the cam surfaces progressively disengage the engaging parts, preventing sudden movement or damage during separation while maintaining secure connection during normal use.
Data Source
AI summary
An electronic device includes a first structure, a second structure and a fixing assembly. The fixing assembly is disposed on the first structure and includes a first cam, a second cam and an adjustment element. The first end of the adjustment element is exposed to the outside of a first housing, and the second end of the adjustment element passes through the first cam and the second cam. When the first structure is connected to the second structure, a first engaging part of the second structure engages with a second engaging part of the second cam to assume a first state. The adjustment element rotates and drives the first cam to rotate relative to the second cam, thereby pushing the second cam away from the first cam to release an engaging relationship between the second engaging part and the first engaging part, and assume the second state.