Air conditioner and electrical heating control method therefor and control device thereof
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Solution Overview
Problem
Existing air conditioner systems face safety hazards due to high temperatures caused by electric heating modules, which can lead to component failure or accidents, especially when the indoor fan fails to start or is not detected correctly, preventing the electric heating module from functioning as needed.
Innovation Solution
An electric heating control method and device that includes an auxiliary fan positioned close to the electric heating unit, which is activated when the electric heating start condition is met, ensuring heat dissipation through the air outlet and allowing the electric heating unit to operate safely even if the indoor fan is not running or its state is undetected, by controlling the operation of both the electric heating unit and auxiliary fan through an electric heating control circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the electric heating module is controlled to work only when the indoor fan is operating, then heat dissipation safety is improved, but the reliability of auxiliary heating function deteriorates when the indoor fan fails to start or is not detected correctly
Solution Approach 1:
The patent introduces an auxiliary fan as an intermediary component to handle heat dissipation specifically for the electric heating module. This auxiliary fan operates independently from the indoor fan, serving as a dedicated mediator for heating-related heat dissipation. When the indoor fan fails or is not detected, the auxiliary fan ensures continuous safe operation of the electric heating module by maintaining proper airflow and heat dissipation, thus resolving the contradiction between safety and reliability.
Solution Approach 2:
The patent segments the heat dissipation function by separating it into two independent systems: the indoor fan for general air circulation and the auxiliary fan for heating-specific heat dissipation. This segmentation allows the electric heating module to have its own dedicated heat dissipation pathway that does not depend on the indoor fan's operation status, thereby ensuring auxiliary heating reliability while maintaining safety.
2Volume of moving object
If the electric heating module is installed inside the indoor unit, then space utilization is improved, but the temperature inside the indoor unit is elevated causing safety hazards and potential component damage
Solution Approach 1:
The auxiliary fan acts as an intermediary heat dissipation device that directly serves the electric heating module within the indoor unit. It creates a localized airflow path that efficiently removes heat from the heating module without significantly elevating the overall indoor unit temperature, thus enabling safe installation of the heating module inside the compact indoor unit space.
Solution Approach 2:
The patent applies local quality by creating a localized heat dissipation zone around the electric heating module using the auxiliary fan. This localized airflow focuses cooling effort where it is most needed (at the heating module) rather than uniformly cooling the entire indoor unit, effectively managing high temperature hazards while maintaining efficient space utilization.
3Object-affected harmful factors
If the indoor fan operation is strictly monitored before allowing electric heating operation, then heat dissipation safety is improved, but the ease of operation deteriorates when control logic errors or detection failures occur
Solution Approach 1:
The auxiliary fan serves as an intermediary that decouples the electric heating module's operation from the indoor fan's operation status. By providing an independent heat dissipation pathway, the auxiliary fan removes the strict dependency on indoor fan operation detection, allowing the heating module to start automatically based on heating demands without being blocked by control logic errors or detection failures in the indoor fan system.
Solution Approach 2:
The auxiliary fan is pre-configured and ready to operate specifically for heating mode heat dissipation. This preliminary preparation of a dedicated heat dissipation system eliminates the need for complex real-time monitoring and decision-making regarding indoor fan status, enabling straightforward automatic startup of the electric heating module when heating conditions are met.
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
The solution ensures a safe and normal start of the electric heating unit, meeting the demand for auxiliary heating by effectively dissipating heat produced, thereby reducing the risk of high-temperature operations and ensuring the electric heating unit can operate regardless of the indoor fan's status, thus enhancing safety and reliability.
Implementation Method 1
turning on the electric heating unit and the auxiliary fan when and electric heating start condition is satisfied, heat produced by the electric heating unit is dissipated from an air outlet of the indoor unit during the operation of the auxiliary fan
Implementation Method 2
The electric heating module includes an electric heating unit and an electric heating control circuit
Data Source
AI summary
The invention discloses an air conditioner and an electric heating control method and a control device thereof. An electric heating module and an indoor fan are arranged in an indoor unit of the air conditioner, the electric heating module comprises an electric heating unit and an electric heating control circuit, and an auxiliary fan is further arranged in the indoor unit; the electric heating control method comprises the following steps that when an electric heating starting condition is met, and the electric heating unit and the auxiliary fan are operated; after the auxiliary fan operates, heat generated by the electric heating unit is blown out from an air outlet of the indoor unit. According to the electric heating control method, the normal start of electric heating can be ensured to the maximum degree, and the requirement for auxiliary heating by electric heating is met.