Flexible Circuit Board Routing Through Battery Compartment Hole
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Solution Overview
Problem
The existing assembly method for electronic apparatuses, such as mobile phones, where a Flexible Printed Circuit (FPC) is clamped between a battery and a front cover, results in a pressing force that deforms the front cover, reducing its strength and affecting the flatness and reliability of the LCD compartment.
Innovation Solution
The FPC is routed through a hole in the accommodating groove's bottom wall, allowing it to extend from the battery compartment side to the enclosure surface, avoiding direct pressure from the battery and maintaining the structural integrity of the front cover by positioning it between the battery and the enclosure rather than between the battery and the compartment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the FPC is clamped between the battery and the front cover to connect the LCD module, then the LCD module can be connected to the circuit board, but the pressing force deforms the front cover and reduces its strength
Solution Approach 1:
The patent introduces a battery compartment as an intermediary component between the battery and the front cover. The FPC is routed through a hole in the battery compartment rather than being directly clamped between the battery and front cover. This intermediary structure transfers and distributes the pressing force, preventing direct deformation of the front cover while maintaining reliable FPC connection.
2Ease of manufacture
If the FPC is clamped between the battery and the front cover, then the LCD module can be installed, but the front cover thickness must be decreased to accommodate the FPC hole, reducing structural strength
Solution Approach 1:
The patent segments the front cover structure by introducing a separate battery compartment component. The FPC hole is created in the battery compartment rather than directly in the front cover. This segmentation allows the front cover to maintain its original thickness and structural integrity, while the battery compartment handles the FPC routing and connection functions.
3Reliability
If the FPC is clamped between the battery and the front cover, then the LCD module can be connected, but the accommodating groove is pressed and deformed, affecting LCD compartment flatness
Solution Approach 1:
The battery compartment serves as an intermediary that isolates the accommodating groove from direct pressing forces. The FPC is routed through the battery compartment's hole and extends to the battery surface, eliminating direct contact between the FPC clamping force and the accommodating groove. This prevents deformation of the groove and maintains the flatness of the LCD compartment.
Data Source
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AI summary
The present invention provides an electronic apparatus. The electronic apparatus includes a main body, a display screen module, a battery, and an enclosure. The main body includes an accommodating groove, a battery compartment, and a circuit board. The main body includes a first surface and a second surface opposite to the first surface. The accommodating groove is located on the first surface, and the battery compartment is located on the second surface. The circuit board is adjacent to the battery compartment. A flexible circuit board is disposed on the display screen module. A hole is disposed in a groove bottom wall of the accommodating groove. The hole penetrates one end, at which the battery compartment is disposed, of the second surface. The battery is accommodated in the battery compartment. The enclosure covers the main body to enclose the battery compartment. The display screen module is accommodated in the accommodating groove. The flexible circuit board passes through the hole, winds from a side of the battery compartment to a surface, facing the enclosure, of the battery, and extends along the surface until connected to the circuit board.