Modular Hillock for Flexible PCB Mounting on Backplanes
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Solution Overview
Problem
Existing backplanes have poor generality and high production costs due to the fixed positions of hillocks, which require multiple molds for different-sized PCBs and component configurations, limiting adaptability and increasing manufacturing expenses.
Innovation Solution
Designing hillocks as independent components with PCB mounting holes and fixed structures, such as threaded holes or rivets, that can be easily arranged and removed on the backplane, allowing for flexible placement and use of a single backplane design to accommodate various PCB sizes and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If hillocks are integrally stamped on the backplane, then the backplane structure is simple, but the generality is poor and production cost is high
Solution Approach 1:
The backplane is divided into two independent parts: the base backplane and the hillock component. The hillock is separated from the backplane and can be independently manufactured and positioned, allowing flexible arrangement on the backplane surface while maintaining structural simplicity of each component.
Solution Approach 2:
The hillock position on the backplane becomes dynamic rather than fixed. The hillock can be arranged at different positions and orientations on the backplane surface according to different PCB requirements, enabling the same backplane to adapt to various configurations.
2Ease of manufacture
If hillocks are integrally stamped on the backplane, then manufacturing is simple, but multiple molds are required for different PCB sizes
Solution Approach 1:
By separating the hillock from the backplane, each component can be manufactured independently using standard processes. The hillock can be produced in batches as a separate component, and the backplane can be manufactured once as a universal base, eliminating the need for multiple specialized molds.
Solution Approach 2:
A single backplane design with standardized mounting features can support multiple PCB sizes and configurations by simply repositioning the hillock components. This universal backplane design replaces the need for multiple specialized molds for different PCB variants.
3Manufacturing precision
If hillocks are fixed on the backplane, then positioning is precise, but adaptability to different PCB configurations is limited
Solution Approach 1:
The hillock position is made adjustable rather than fixed during manufacturing. The hillock can be precisely positioned and fixed at different locations on the backplane depending on the specific PCB configuration requirements, combining precision with flexibility.
Solution Approach 2:
The position parameters of the hillock on the backplane can be changed according to different PCB configurations. By varying the location and arrangement parameters of the hillock while keeping the backplane design constant, adaptability to different PCB sizes and layouts is achieved.
Data Source
AI summary
The present invention discloses a hillock for fixing PCB on backplane, a backplane and a backlight module. A hillock is used for fixing PCB on backplane; the hillock is provided with a PCB mounting hole for fixing the PCB; the bottom of the hillock is provided with a fixed structure for arranging the hillock on the backplane. In the present invention, because each hillock on the backplane is designed into an independent part, and the hillock is fixed on the backplane by a fixed structure at the bottom of the hillock, hillocks of corresponding positions and corresponding number are arranged on the backplane in accordance with different requirement, such as PCBs of different size, and requirements of components of different number. Thus, there is no need for production of backplanes of various specifications to adapt for the requirements of various PCBs and the like and components of different number, and only a kind of backplane is required to be produced. The production cost of backplanes is saved, and the generality of backplanes is improved.