High-Speed Train Charger Cooling Box With Controlled Air Circulation
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Solution Overview
Problem
High-speed train chargers face increased temperature challenges due to reduced space and intensified components, leading to performance degradation of heating elements and environmental temperatures, which existing natural cooling methods cannot effectively address.
Innovation Solution
A cooling and heat radiating box with a controlled air circulation system, featuring separate air passage chambers, blower units, and strategically placed heat radiating fins, which utilize external cold air for thermal convection and conduction to manage temperature thresholds and enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If natural cooling is adopted, then the structure is simple, but the heat radiation requirement cannot be met
Solution Approach 1:
The cooling system is segmented into multiple independent components: a blower unit for forced air circulation, heat radiating fins for thermal dissipation, and temperature sensors for monitoring. This segmentation allows each component to perform its specific function efficiently while collectively meeting the heat radiation requirements that natural cooling cannot satisfy alone.
Solution Approach 2:
The system transitions from static natural cooling to dynamic forced cooling by introducing a blower that can actively circulate air through the housing and across the heat radiating fins. This dynamic adjustment enables the system to adapt to varying heat generation levels and maintain effective heat radiation under different operating conditions.
2Volume of moving object
If charger space is reduced and power is increased, then integration is improved, but temperature rise increases
Solution Approach 1:
Heat radiating fins are strategically positioned at specific locations within the compact housing where heat generation is most intense. The fins are locally enhanced with increased surface area and optimized geometry to maximize heat dissipation from critical elements while maintaining the overall compact form factor of the charger.
Solution Approach 2:
The heat radiating fins act as an intermediary between the internal heating elements and the external environment. These fins provide an extended thermal exchange surface that facilitates efficient heat transfer from the confined internal space to the surrounding air, effectively managing temperature rise in the compact charger design.
3Reliability
If forced cooling is implemented, then heat radiation capability is improved, but device complexity increases
Solution Approach 1:
The blower unit, heat radiating fins, and temperature sensors are merged into an integrated cooling system that works as a coordinated unit. The blower draws air through the housing, across the fins, and exhausts it, while sensors monitor temperatures and provide feedback. This merging reduces the need for separate independent systems and simplifies overall control.
Solution Approach 2:
The cooling system incorporates temperature sensors that automatically monitor the thermal state of the charger components and trigger the blower to activate or adjust its operation. This self-service mechanism eliminates the need for complex external control systems, as the charger itself regulates its cooling based on real-time temperature feedback.
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 effectively maintains optimal temperatures for both heating elements and the internal environment, ensuring reliable performance while reducing energy consumption through controlled ventilation and enhanced heat radiation efficiency.
Implementation Method 1
a first blower (4) and a second blower (15) are respectively mounted on the first ventilating path (9) and the second ventilating path (16), the first blower (4) is used for forcing air to circulate to achieve thermal convection with the first heat radiating fin (20) and the first fin group (2201, 2202)
Implementation Method 2
the first heat radiating fin (20) and the second heat radiating fin (22) are used for exchanging heat with the air in the first air passage chamber (1) through thermal convection and thermal conduction
Implementation Method 3
the first heat radiating fin (20) and the second heat radiating fin (22) are used for exchanging heat with the air in the first air passage chamber (1) through thermal convection and thermal conduction
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present application discloses a cooling and heat radiating box and heat radiating control method, the cooling and heat radiating box includes a first air passage chamber and an inner chamber surrounding the first air passage chamber; an air inlet, the first air passage chamber, a first blower chamber and an air outlet sequentially form a first ventilating path; the inner chamber includes an element region and a cavity region, and heating elements are disposed in the element region; a second blower is disposed in the inner chamber; a first heat radiating fin and a second heat radiating fin are disposed between the element region and the first air passage chamber; a first temperature sensor capable of detecting temperature of the heating elements and a second temperature sensor capable of detecting air temperature of the inner chamber are disposed in the inner chamber; the box is further provided with a control unit used for controlling the first blower and the second blower to be started or stopped by receiving temperature information acquired by the temperature sensors.