Display Assembly Flexible Isolation Pad to Prevent Condensate Damage
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Solution Overview
Problem
The display assembly of window air conditioners is prone to malfunction due to condensate formation on the face frame entering the display box, which can cause issues with the electric control board.
Innovation Solution
A flexible isolation pad is placed between the base plate and the electric control board to prevent condensate from entering the display box, forming a two-layer isolation protection and ensuring the control key can interact effectively with the key switch without being affected by the pad's flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the control key is passed through the key via hole and key mounting hole to control the key switch, then the ease of operation is improved, but the reliability deteriorates due to condensate entering the display box
Solution Approach 1:
A flexible isolation pad is introduced as an intermediary component between the control key and the key switch. The pad extends through the key via hole and key mounting hole, allowing the control key to press through it while isolating the key switch from direct exposure to cold air and condensate. This mediator enables the control function while protecting the electrical component from harmful environmental factors.
Solution Approach 2:
The flexible isolation pad is made of elastomeric material that can be elastically deformed. When the control key is pressed, the pad deforms to transmit the pressing force to the key switch, then returns to its original shape. This flexible film structure allows mechanical operation while providing thermal and moisture isolation, preventing condensate from reaching the key switch.
2Reliability
If the flexible isolation pad is provided between the base plate and the electric control board, then the reliability is improved by preventing condensate formation, but the device complexity increases
Solution Approach 1:
The flexible isolation pad serves multiple functions simultaneously: it provides thermal insulation to prevent condensate formation on the electric control board, acts as a mechanical transmitter for the control key operation, and provides moisture barrier protection. By combining these functions into a single component, the design adds minimal complexity while achieving comprehensive protection and operational functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively prevents condensate from forming on the electronic control board, enhancing the reliability of the display assembly and window air conditioner by improving protection against failures and maintaining user comfort through reduced operational difficulty.
Implementation Method 1
a flexible isolation pad provided in the display box, the flexible isolation pad being located between the base plate and the electric control board, and configured to isolate the base plate from the electric control board
Implementation Method 2
a control key movably provided in the key via hole, the control key being configured to abut against the flexible isolation pad, and configured to interact with the electric control board through the flexible isolation pad
Data Source
AI summary
A display assembly includes a display box including a base plate having a display portion and a key via hole, an electric control board provided in the display box, and a flexible isolation pad provided in the display box. The flexible isolation pad is located between the base plate and the electric control board, and is configured to isolate the base plate from the electric control board. The display assembly further includes a control key movably provided in the key via hole. The control key is configured to abut against the flexible isolation pad, and to interact with the electric control board through the flexible isolation pad.