Electric Control Box Cavity Segmentation for Sealed Heat Dissipation
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Solution Overview
Problem
The existing air conditioning systems face challenges in maintaining the air tightness of electric control boxes while effectively dissipating heat, leading to potential damage from impurities like water and dust entering through heat dissipation holes, which can harm electronic components.
Innovation Solution
The proposed solution involves an electric control box design with a mounting cavity divided into two sections by a mounting plate, featuring first and second air vents that allow airflow to drive air from one cavity to the other, where a heat dissipation member is thermally connected to electronic elements and cooled by a cooling fan, enhancing heat dissipation without compromising air tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat dissipation hole is defined in the box body to cool down the electric control box, then heat dissipation is improved, but air tightness is reduced and impurities can enter the mounting cavity
Solution Approach 1:
The mounting cavity is divided into a first cavity and a second cavity by the mounting plate. The first cavity houses the heat dissipation member while the second cavity contains the electronic components. This segmentation allows the heat dissipation system to be isolated from the electronic components, enabling heat dissipation without compromising the sealed environment of the electronic components.
Solution Approach 2:
The mounting plate acts as an intermediary structure between the heat dissipation system and the electronic components. It physically separates the first cavity (heat dissipation zone) from the second cavity (electronic components zone), allowing heat to be dissipated through the heat dissipation member while preventing impurities from reaching the electronic components.
2Temperature
If a heat dissipation hole is defined in the box body, then heat dissipation is improved, but electronic components may be damaged by entering impurities
Solution Approach 1:
The mounting cavity is segmented into two separate cavities: the first cavity for heat dissipation and the second cavity for electronic components. This physical separation ensures that impurities entering through heat dissipation structures cannot reach the electronic components, eliminating the harmful effect while maintaining effective heat dissipation.
Solution Approach 2:
The mounting plate serves as a protective intermediary barrier between the heat dissipation system and the electronic components. It allows the heat dissipation function to operate independently while shielding the electronic components from impurities that may enter the first cavity.
3Reliability
If air tightness is maintained in the control box, then protection from impurities is improved, but heat dissipation becomes insufficient
Solution Approach 1:
The control box interior is segmented into a sealed second cavity for electronic components and a first cavity for heat dissipation. This allows the second cavity to maintain air tightness for protection, while the first cavity can facilitate heat dissipation through controlled airflow or heat exchange structures.
Solution Approach 2:
The mounting plate acts as an intermediary that enables the coexistence of air tightness and heat dissipation. It separates the sealed environment from the heat dissipation system, allowing the electronic components to remain protected while the heat dissipation member effectively manages thermal energy.
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 effectively cools the electric control box by utilizing airflow to dissipate heat while preventing impurities from entering, thus protecting electronic components and maintaining the box's air tightness.
Implementation Method 1
a cooling fan, configured to supply air to drive air in the first cavity to flow into the second cavity through the first air vent
Implementation Method 2
a heat dissipation member, at least partially received in the first cavity; an electronic element, received in the second cavity and thermal-conductively connected to the heat dissipation member
Data Source
AI summary
The electric control box includes a box body, a mounting plate, a radiator, an electronic component and a cooling fan; the box body is provided with a mounting chamber, the mounting plate is arranged in the mounting chamber and the mounting chamber forms a first chamber and a second chamber which are located at two sides of the mounting plate, the mounting plate is provided with a first ventilation opening and a second ventilation opening which are spaced apart, the first ventilation opening and the second ventilation opening enables communication between the first chamber and the second chamber; the radiator is at least partially arranged in the first chamber; the electronic component is arranged in the second chamber and is in heat conducting connection with the radiator; and the cooling fan is used for supplying air.