Linear Compressor PCB Orientation for Vibration Resistance
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Solution Overview
Problem
The existing linear compressor designs face issues with vibration resistance due to the perpendicular installation of electronic components on printed circuit boards, which can lead to stress on connection lead lines, compromising the reliability of the device.
Innovation Solution
The linear compressor is designed with a printed circuit board installed in a direction substantially perpendicular to the reciprocating direction of the mover, ensuring that connection lead lines are parallel to the excitation force, thereby enhancing vibration resistance and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the printed circuit board is installed parallel to the reciprocating direction of the mover, then the space utilization is improved, but the vibration resistance of circuit elements deteriorates
Solution Approach 1:
The patent inverts the conventional installation orientation of the printed circuit board. Instead of installing it parallel to the reciprocating direction (conventional approach), it is installed perpendicular to the reciprocating direction. This inversion changes the orientation of connection lead lines from perpendicular to the board (parallel to excitation force), thereby improving vibration resistance while maintaining space efficiency.
2Ease of manufacture
If electronic components are attached through connection lead lines extending perpendicular to the printed circuit board, then the electrical connection is simplified, but the stress on connection lead lines increases due to pendulum-like swinging
Solution Approach 1:
The patent inverts the conventional orientation relationship between the printed circuit board and connection lead lines. By rotating the board 90 degrees relative to the reciprocating direction, the connection lead lines that previously extended perpendicular to the board now extend parallel to the excitation force direction, eliminating the pendulum swinging effect and reducing stress on the lead lines.
Data Source
AI summary
Provided is a compressor in which vibration resistance against an excitation force due to drive of a linear motor is improved. A linear compressor 1 includes: a mover 101 and a stator 102 which relatively move in a first direction and a second direction that is an opposite direction to the first direction; and an inverter portion 300 which includes a printed circuit board 305 and circuit elements 302 and 304 connected to the printed circuit board 305 through connection lead lines 306 extending from the printed circuit board 305, wherein the printed circuit board 305 is installed in a direction substantially perpendicular to the first direction.