Indoor unit
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Solution Overview
Problem
The existing air-conditioning indoor units have a short distance between the air-sending opening of the fan and the heat exchanger, resulting in reduced heat-exchange efficiency as the air blown by the fan strikes the heat exchanger without proper rectification.
Innovation Solution
The indoor unit incorporates a fan plate with a guide portion that extends upward from the fan connection portion, increasing the distance between the air-sending opening and the heat exchanger, allowing the air flow to be rectified before reaching the heat exchanger, thereby improving heat-exchange efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between the air-sending opening and the heat exchanger is reduced, then the device size is minimized, but the heat-exchange efficiency deteriorates due to unrectified air flow striking the heat exchanger
Solution Approach 1:
The patent introduces a guide portion as an intermediary structure between the air-sending opening and the heat exchanger. This guide portion extends upward from the fan connection portion and directs the air flow from the air-sending opening toward the heat exchanger, allowing the air flow to be rectified before reaching the heat exchanger surface, thereby improving heat-exchange efficiency without significantly increasing device size
Solution Approach 2:
The guide portion utilizes the vertical dimension by extending upward from the fan connection portion. This vertical extension allows the air flow to travel a longer path in the vertical direction before reaching the heat exchanger, enabling flow rectification while maintaining a compact horizontal footprint of the device
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 design enhances the heat-exchange efficiency of the heat exchanger by ensuring that the air flow is rectified before striking the heat exchanger, leading to improved cooling and heating performance.
Implementation Method 1
the guide portion extends upward from the fan connection portion. Therefore, the air-sending opening of the air-sending device and the heat exchanger are far apart from each other, and the flow of the air that is sent from the air-sending device is rectified before the air reaches the heat exchanger
Data Source
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AI summary
An indoor unit includes a housing forming an outer portion, and having an air inlet into which air is sucked and an air outlet from which air is blown out, the air inlet being formed in a lower portion of the housing, the air outlet being formed in an upper portion of the housing; an air-sending device provided at an inside lower portion of the housing, and sending the air sucked in from the air inlet from an air-sending opening to an inside upper portion of the housing, the air-sending opening being formed in an upper portion of the air-sending device; a heat exchanger provided at the inside upper portion of the housing, and causing heat to be exchanged between air sent from the air-sending device and a heat medium; and a fan plate separating the inside lower portion and the inside upper portion of the housing from each other. The fan plate includes a fan connection portion surrounding the air-sending opening of the air-sending device, and a guide portion extending upward from the fan connection portion and guiding the air sent from the air-sending device toward the heat exchanger.