Liquid Crystal Indicator Assembly via Peripheral Wall Insertion
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Solution Overview
Problem
Conventional assembly structures for display devices on vehicles struggle to easily arrange and detach liquid crystal indicators to the center of speedometers and similar instruments, making it difficult to perform attachment and detachment work while preventing damage.
Innovation Solution
An assembly structure with a ring-like peripheral wall featuring an indicator insertion opening, guide devices, and fixing devices allows for easy insertion and secure fixation of the liquid crystal indicator between the movement and dial, enabling smooth attachment and detachment, and ensuring the pointer can be arranged on the front surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the liquid crystal indicator is inserted from the front surface side of the case, then the attachment/detachment work can be easily performed, but it is difficult to arrange the liquid crystal indicator on the center side of the speedometer
Solution Approach 1:
The patent changes the insertion direction from the front surface (2D plane insertion) to the lateral direction (3D spatial insertion through the peripheral wall). By forming the indicator insertion opening in the peripheral wall, the liquid crystal indicator can be inserted from the side, allowing it to be positioned on the center side of the speedometer while maintaining easy attachment and detachment operations.
2Shape
If the liquid crystal indicator is arranged on the center side of the speedometer, then the display layout is improved, but the attachment/detachment work becomes difficult
Solution Approach 1:
The patent segments the case structure by forming a dedicated indicator insertion opening in the peripheral wall, separate from the front surface assembly. This segmentation allows the liquid crystal indicator to be independently accessed and installed from the side, facilitating both center positioning and easy attachment/detachment operations without interfering with the front surface components.
3Shape
If the pointer detouring portion is extended to detour around the liquid crystal indicator, then the pointer can be arranged on the front surface, but the structure becomes more complex
Solution Approach 1:
The patent introduces a flexible pointer detouring portion that can dynamically adapt its path around the liquid crystal indicator. This dynamic design allows the pointer to be arranged on the front surface while accommodating the presence of the liquid crystal indicator through a detouring path, rather than requiring a rigid complex structure.
Data Source
AI summary
An assembly structure of a display device according to the present invention is a structure in which a liquid crystal indicator is assembled to a meter body including a case having a ring-like peripheral wall, a dial arranged on a front surface side of the case, a pointer that moves on the dial, and a movement that is provided in the case and drives the pointer. In the peripheral wall of the case, an indicator insertion opening is formed, through which it is possible to insert and detach the liquid crystal indicator into and from between the movement and the dial.