Electric component box and indoor unit of air conditioner
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Solution Overview
Problem
Conventional electric component boxes for air conditioners require high material and labor costs due to complex wiring and large space requirements, with noise interference from power supplies causing erroneous operations.
Innovation Solution
The electric component box integrates terminal blocks directly onto the control board, reducing the need for external wiring and minimizing space, while positioning communication and power terminals away from the power supply to prevent noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal blocks are screwed to the casing of the electric component box, then reliable electrical connection is achieved, but material cost and assembly labor time increase
Solution Approach 1:
The terminal block is merged with the control board by providing it directly on the control board rather than as a separate component screwed to the casing. This integration eliminates the need for separate assembly steps while maintaining reliable electrical connections between the terminal block and control board components.
2Reliability
If terminal blocks are screwed to the casing of the electric component box, then reliable electrical connection is achieved, but the space required in the electric component box increases
Solution Approach 1:
The terminal block is integrated directly onto the control board, utilizing the control board's existing space and structure. This eliminates the need for separate mounting space in the electric component box casing, thereby reducing the overall space requirement while maintaining reliable electrical connections.
3Ease of manufacture
If terminal blocks are integrated onto the control board, then material cost and assembly time are reduced, but wiring complexity may increase
Solution Approach 1:
The terminal block is provided directly on the control board as an integrated component. This integration simplifies the overall wiring arrangement by reducing the number of separate components and connection points that need to be managed, thereby reducing wiring complexity despite the closer proximity of electrical components.
Data Source
AI summary
An electric component box that accommodates therein an electric component, which includes: a control board that controls an air conditioner indoor unit; a power supply and indoor-outdoor wiring terminal block that is provided on the control board and is connected to a communication wire wired from the air conditioner indoor unit to an air conditioner outdoor unit and is connected to a power wire that supplies power; and a communication-wire terminal block that is provided on the control board and is connected to a communication wire for an external input.