Indoor unit and air conditioner
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Solution Overview
Problem
Existing indoor units of air conditioners face challenges in accurately detecting biometric information due to the location of biometric sensing devices.
Innovation Solution
The indoor unit incorporates a biometric sensing device housed within the unit's housing, with a transmission signal passing through the housing wall to detect biometric information, and the detection range is positioned outside the movable range of the shutter to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the biometric sensing device is externally attached to the indoor unit, then the device can be easily installed and maintained, but the detection accuracy is reduced due to interference from movable parts like shutters
Solution Approach 1:
The biometric sensing device is nested inside the housing of the indoor unit, with the detection range positioned outside the movable range of the shutter. This nesting arrangement protects the sensing device from external interference while maintaining detection accuracy, as the transmission signal passes through the housing wall to detect biometric information without being blocked by the shutter's movement.
2Measurement precision
If the biometric sensing device is placed inside the housing, then detection accuracy is improved by isolating from movable parts, but the device complexity and installation difficulty increase
Solution Approach 1:
The housing serves multiple functions: it protects internal components, provides structural support, and acts as a transmission medium for the biometric sensing signal. By utilizing the existing housing structure for signal transmission rather than requiring a separate window or opening, the design simplifies manufacturing and installation while maintaining detection accuracy inside the housing.
3Ease of operation
If the shutter movable range overlaps with the biometric sensing detection range, then the shutter can effectively control air flow, but the biometric detection accuracy is compromised due to signal interference
Solution Approach 1:
The detection range of the biometric sensing device is positioned in a spatial dimension that is separate from the movable range of the shutter. By arranging the detection range outside the shutter's movement path while keeping the device inside the housing, the shutter can freely control air flow without interfering with biometric signal transmission through the housing wall.
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 configuration enhances biometric detection accuracy by isolating the sensing device from movable parts and allows for improved aesthetic integration of the sensing technology within the indoor unit.
Implementation Method 1
transmits a transmission signal that passes through a wall of the housing to detect the biometric information
Data Source
AI summary
An embodiment of an indoor unit of an air conditioner according to the present disclosure includes: a housing having an exhaust port formed thereon; a heat exchanger housed on an inside of the housing; a blower that is housed on the inside of the housing, and that blows air to the exhaust port, and a biometric sensing device that detects biometric information regarding a living body, where the living body is located inside of a detection range thereof. A shutter that opens and closes at least a portion of the exhaust port, is provided in the exhaust port. The biometric sensing device is accommodated on the inside of the housing. The detection range of the biometric sensing device is provided outside a movable range of the shutter.