Electric Control Box Coolant Pipe for High-Temperature AC Operation
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Solution Overview
Problem
Air conditioners face poor heat dissipation in electric control boxes at high temperatures, affecting their service life and reliability, and variable frequency air conditioners cannot operate at high frequencies, failing to meet user requirements.
Innovation Solution
Incorporating a heat dissipation coolant pipe in the electric control box to remove heat efficiently, allowing variable frequency air conditioners to operate at high frequencies and power levels even at high temperatures, and implementing a control method to manage electronic expansion valves and compressor frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If air cooling is applied to dissipate heat from the electric control box, then the structure is simple, but the heat dissipation effect is poor at high temperatures
Solution Approach 1:
The patent introduces a heat dissipation coolant pipe as an intermediary substance (coolant) to transfer heat from the electric control box to the condenser. The coolant circulates through the pipe, absorbing heat from electronic components and releasing it at the condenser, thereby solving the poor heat dissipation effect of air cooling while maintaining structural simplicity.
Solution Approach 2:
The patent employs a liquid coolant circulation system (hydraulic principle) to achieve heat dissipation. The coolant flows through the heat dissipation coolant pipe via pump-driven circulation, enabling efficient heat transfer from the electric control box to the condenser, overcoming the limitations of air cooling at high temperatures.
2Power
If variable frequency air conditioner operates at high frequencies, then power output increases, but heat generated by electric control box increases
Solution Approach 1:
The heat dissipation coolant pipe acts as an intermediary heat transfer system between the electric control box and the condenser. When the air conditioner operates at high frequencies and generates excessive heat, the coolant circulates through the pipe, continuously removing heat from electronic components and transferring it to the condenser, thereby enabling sustained high-power operation without overheating.
Solution Approach 2:
The heat dissipation coolant pipe is pre-installed within the electric control box, with the coolant circulation system ready in advance. When high-frequency operation is required, the system can immediately begin active heat dissipation without delay, preventing temperature rise and allowing the variable frequency air conditioner to reach high operating frequencies and output high power under high temperature conditions.
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
Improves the reliability and service life of air conditioners by effectively dissipating heat and enabling high operating frequencies and power output under high temperatures, meeting user demands.
Implementation Method 1
a heat dissipation coolant pipe arranged in an electric control box... the heat dissipation coolant pipe is configured to dissipate heat from the electric control box
Implementation Method 2
the outdoor condenser is communicated with a first end of the heat dissipation coolant pipe via the first electronic expansion valve, the indoor evaporator is communicated with a second end of the heat dissipation coolant pipe
Data Source
AI summary
A control method and device and an air conditioner are provided. The air conditioner has an outdoor condenser, an indoor evaporator, a first electronic expansion valve, a throttle valve, and a heat dissipation coolant pipe arranged in an electric control box. By utilizing the control method and device, the air conditioner uses the heat dissipation coolant pipe to dissipate heat from the electric control box of the air conditioner. The heat generated by the electric control box can thus be timely removed. The temperature of the elements of the air conditioner can be lowered and the reliability and service life of the air conditioner can be improved.