Board Installation Member Eliminates Chassis for Compact Circuit Board Mounting
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Solution Overview
Problem
Conventional receiving apparatuses with circuit boards installed on metal chassis face challenges in size reduction and cost optimization due to the necessity of a chassis for fixing the circuit boards, which complicates the installation and fabrication process.
Innovation Solution
A receiving apparatus and board installation member that allow for the installation of a circuit board on another without a chassis, utilizing a board installation member with a plate portion and leg portions that protrude perpendicularly to securely and electrically connect the boards, facilitating easy installation and eliminating the need for a chassis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a chassis is used to install the circuit board, then the circuit board is securely fixed and supported, but the size of the receiving apparatus increases and the fabrication process becomes complicated
Solution Approach 1:
The invention extracts and eliminates the chassis from the system by directly mounting the circuit board onto the main board. The circuit board is secured using mounting holes and fasteners that penetrate through the circuit board and engage with the main board, removing the intermediate chassis structure entirely while maintaining secure fixation.
Solution Approach 2:
The invention merges the functions of the chassis (support and fixation) directly into the main board structure. The main board is designed with integrated mounting holes and reinforcement structures that combine the support function previously provided by the chassis with the fixation function, eliminating the need for a separate chassis component.
2Strength
If a chassis is used to install the circuit board, then the circuit board is supported structurally, but the fabrication process becomes complicated and costs increase
Solution Approach 1:
The invention removes the chassis from the fabrication process entirely. The circuit board is mounted directly to the main board using pre-drilled mounting holes and simple fasteners, eliminating the complex multi-step process of chassis fabrication, circuit board mounting to chassis, and chassis assembly to main board that characterized the conventional approach.
Solution Approach 2:
The invention incorporates mounting holes and reinforcement structures into the main board during its initial fabrication process. This preliminary action ensures that the structural support and fixation capabilities are built into the main board itself, eliminating the need for separate chassis fabrication and assembly operations.
3Reliability
If input terminals and connecting terminals are disposed outside the chassis, then electrical connections are established, but the apparatus size increases and installation becomes more difficult
Solution Approach 1:
The invention merges the electrical connection function with the mechanical mounting structure. The same holes used for mechanical fixation also serve as pathways for electrical connections, with terminals positioned at the edges of the circuit board that align with corresponding connectors on the main board, eliminating the need for separate external terminal housings.
Data Source
AI summary
A receiving apparatus according to the present invention comprises: a first board including a mount surface whose outer edge is substantially quadrilateral; and a board installation member including a plate portion that has an installation surface whose outer edge is substantially quadrilateral, the first board is installed on the installation surface (called a front surface) side and the surface (called a rear surface) of the rear side of the installation surface is installed on a given second board, the apparatus applies a predetermined processing to a received broadcast signal using a circuit disposed on the first board, and the board installation member includes a connecting terminal to electrically connect the first board with the second board and a leg portion used for the installation on the second board, the connecting terminal protrudes from the plate portion in the direction substantially perpendicular to the plate portion on the front surface side and on the rear surface side, and comes into contact with the first board on the front surface side and comes into contact with the second board on the rear surface side, and the leg portion protrudes from the plate portion in the direction substantially perpendicular to the plate portion on the rear surface side.