Air Conditioner Indoor Unit Control Box with Invertible Wiring Ports
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Solution Overview
Problem
Existing air conditioning device indoor units do not effectively allow for the individual leading of strong and weak electricity wiring into a control box when the control box is inverted, potentially causing noise interference and complicating wiring connections.
Innovation Solution
The indoor unit design includes a casing with a control box that can be inverted, featuring separate leading ports on adjacent side surfaces to accommodate strong and weak electricity wiring, along with guide paths and engagement portions to facilitate easy wiring and support, ensuring individual entry of wiring types into the control box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the control box is inverted between first aspect and second aspect, then the inspection port can direct inside or outside the casing for flexible access, but separate leading ports for strong and weak electricity wiring cannot be individually provided in both aspects
Solution Approach 1:
The control box is divided into multiple side surfaces (first, second, third, and fourth side surfaces), with leading ports for strong electricity wiring and weak electricity wiring separately provided on different side surfaces. This segmentation allows independent wiring access from different directions, resolving the contradiction by enabling separate wiring paths while maintaining orientation flexibility.
Solution Approach 2:
Leading ports are distributed across multiple dimensional surfaces of the control box rather than concentrated on a single surface. By utilizing the three-dimensional structure of the control box and placing ports on adjacent side surfaces, the design enables wiring access from multiple spatial dimensions, allowing the control box to be inverted while maintaining proper wiring connections.
2Device complexity
If strong electricity wiring and weak electricity wiring are led into the control box from one place, then the leading port structure is simplified, but noise interference occurs between strong and weak electricity wiring
Solution Approach 1:
The leading ports are segmented into separate openings for strong electricity wiring and weak electricity wiring on adjacent side surfaces of the control box. This physical separation prevents electromagnetic noise interference between the two types of wiring while maintaining a relatively simple overall structure through the modular placement of ports.
Solution Approach 2:
The control box structure itself acts as an intermediary barrier between strong and weak electricity wiring. By positioning leading ports on adjacent side surfaces and using the control box housing as a shield, the design prevents direct electromagnetic coupling between the two wiring types while maintaining structural simplicity.
3Adaptability or versatility
If the control box is inverted in second aspect, then the flow port can be formed in the side surface for back surface suction, but the wiring connection becomes complicated due to lack of separate leading ports
Solution Approach 1:
The control box incorporates multiple side surfaces with dedicated leading ports for strong and weak electricity wiring. This segmentation allows the control box to be inverted for second aspect (back surface suction) operation while maintaining simple wiring connections, as the ports are positioned on adjacent surfaces to facilitate proper wiring routing in either orientation.
Solution Approach 2:
The control box is designed with universal wiring capability that functions in both first aspect (lower surface suction) and second aspect (back surface suction) configurations. By providing leading ports on multiple adjacent side surfaces, the design enables the same control box structure to support wiring connections regardless of which suction aspect is being used, eliminating the need for different wiring configurations.
Data Source
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AI summary
Provided is an indoor unit that can individually lead different types of external wiring into a control box, even when the control box is inverted in a casing. The indoor unit can select a first aspect in which a flow port of air is formed in a bottom surface of a casing (11), and a second aspect in which a flow port is formed in one side surface of the casing (11). The control box (40) includes a first side surface (41) in which an inspection port (48) is formed, and is disposed in the casing (11) in a state where the inspection port (48) is directed to an inside of the casing (11) in the first aspect, and in a state where the inspection port (48) is directed to an outside of the casing (11) in the second aspect, in second and third side surfaces (42, 43) adjacent to the first side surface (41) of the control box (40), first leading ports (61, 62) configured to lead external wiring (k, j) into the control box (40) are formed, and in another surface (20) of the casing (11), an opening (33) opposed to the inspection port (48), and second leading ports (35A, 35B) configured to lead the external wiring (k, j) into the casing (11) on both side portions of the opening (33) in the second aspect are formed.