Wall-Mounted AC Indoor Unit With Rotating Temperature Sensing
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Solution Overview
Problem
Conventional wall-mounted indoor units of air-conditioning apparatuses have limited temperature detection ranges, particularly failing to detect the temperature of the outer wall effectively, which affects comfort and energy efficiency, especially in seasons with significant temperature differences between indoor and outdoor environments.
Innovation Solution
The indoor unit is equipped with a temperature sensor that projects from the body and rotates to detect temperatures in all horizontal directions, enabling the detection of the outer wall temperature and improving thermal calculation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is disposed below the front surface of the body to detect the temperature of a target moving in a direction from a wall to the inside of the room, then the detection range is improved, but the temperature of the outer wall cannot be detected
Solution Approach 1:
The temperature sensor is made rotatable to dynamically change its detection direction. The sensor can rotate to face the outer wall for detecting wall temperature, then rotate to face the room interior for detecting moving targets, thus resolving the contradiction between detecting outer wall temperature and detecting targets in the room
Solution Approach 2:
The temperature sensor transitions from a fixed two-dimensional detection plane to a three-dimensional detection capability through rotation. This allows the sensor to access temperature data from different spatial positions including the outer wall and various locations within the room, expanding the detection range without compromising adaptability
2Device complexity
If the temperature sensor detects temperature only in a narrow range, then the device complexity is reduced, but comfort and energy saving performance are limited
Solution Approach 1:
A rotatable temperature sensor mechanism is implemented that can dynamically adjust its detection direction. This allows a single sensor to cover multiple detection zones (outer wall and various room directions) sequentially, achieving wide detection coverage without requiring multiple fixed sensors, thus maintaining device simplicity while improving comfort and energy efficiency
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 expands the temperature detection range, allowing for more accurate thermal calculations and enhanced comfort and energy efficiency by considering the outer wall temperature, even in extreme seasons.
Implementation Method 1
a temperature detector that detects a temperature based on heat radiation from a target
Data Source
AI summary
An indoor unit of an air-conditioning apparatus including a body placed on a wall surface of a room that is an air-conditioned space, the indoor unit including a temperature sensor disposed at a position projecting from the body, and including a temperature detector that detects a temperature based on heat radiation from a target and a motor that causes the temperature detector to rotate, the position being a place where the temperature sensor is capable of detecting a temperature in all the horizontal directions by rotating the temperature detector.