Modular Electronic Device Bayonet Coupling and Terminal Layout
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Solution Overview
Problem
Existing modular electronic devices face challenges in reliably attaching and detaching modules without increasing size, preventing short-circuiting, and managing heat dissipation, which can lead to performance restrictions and increased operation time due to concentrated heat sources.
Innovation Solution
An electronic device design featuring a camera module with a second connection terminal portion that fits onto a first connection terminal portion, including power source, ground, and communication terminals, where the ground terminals are positioned closer to the power source terminals than the communication terminals, and a locking mechanism with claw portions for secure attachment and detachment, along with a heat transfer member for efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electromagnetic attachment mechanism is used to attach and detach modules, then usability is improved and fixing is secured, but weight of each accessory module increases due to electromagnet
Solution Approach 1:
The patent replaces the electromagnetic attachment mechanism with a mechanical bayonet-style coupling system consisting of a male screw portion and a female screw portion. This mechanical system achieves reliable attachment and detachment without requiring electromagnets, thereby reducing the weight of accessory modules while maintaining ease of operation.
2Volume of stationary object
If no physical holder is provided for module attachment, then device size is reduced, but modules may fall off during dropping
Solution Approach 1:
The patent employs a bayonet-style coupling mechanism where the male screw portion rotates and engages with the female screw portion to form an interlocked connection. This curved, rotational engagement provides mechanical strength and reliability to prevent modules from detaching during dropping, while maintaining a compact device size without requiring additional physical holders.
3Adaptability or versatility
If modules are assembled in modular fashion, then desired functions are realized, but heat sources become concentrated and temperature increases
Solution Approach 1:
The patent divides the electronic device into separate modular components that can be independently attached and detached. By segmenting the device into a main body and interchangeable modules (such as camera modules, flash modules, or lens modules), heat-generating components are distributed across separate modules rather than concentrated in one location, enabling better thermal management while maintaining functional versatility.
4Reliability
If movable mount portion operation members are added for attachment, then reliable securing is achieved, but device size increases due to screw movement
Solution Approach 1:
The patent integrates the attachment and detachment functions directly into the bayonet-style coupling mechanism itself, eliminating the need for separate movable mount portion operation members. The male and female screw portions are designed to engage and lock together through a simple rotational motion, combining multiple functions (attachment, securing, and positioning) into a single integrated mechanism that does not increase device size.
Data Source
AI summary
The electronic device can be used with a power source module attached to a device main body. The device main body and the power source module are electrically connected to each other by the respective connector portions. The device main body includes a connection terminal portion with a concave shape, and the power source module has a connection terminal portion with a convex shape that is fit to the connection terminal portion of the device main body. A power source terminal group is provided in a first surface, and a ground terminal group and a communication terminal group for communication with the device main body are provided in a second surface on a side opposite to the first surface, from among connection surfaces of the connection terminal portion. The ground terminal group is arranged at a position closer to the power source terminal group than to the communication terminal group.