Hybrid Railway Power Box Cooling via Sealed Conduit
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Solution Overview
Problem
The existing power supply boxes for hybrid power rail vehicles face issues with uneven temperature distribution and heat generation during frequent charging and discharging, leading to reduced battery performance and safety risks due to inadequate cooling, especially in adverse weather conditions where water and debris can enter through traditional forced air cooling systems.
Innovation Solution
A closed power supply box design incorporating a blowing pipe for cooling gas intake and a discharging pipe for heat exhaust, utilizing the vehicle's air-conditioning system to facilitate effective cooling while preventing external contaminants, ensuring safe operation and improved protection levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If forced air cooling with intake grille is used, then cooling effect is achieved, but water and debris can enter the power supply box
Solution Approach 1:
The patent introduces a heat exchanger as an intermediary device between the external environment and the power supply box. The heat exchanger dissipates heat from the power supply box through its external surface without requiring direct openings in the box body, thus achieving cooling while preventing water and debris ingress through the sealed box structure
Solution Approach 2:
The patent replaces the mechanical forced air cooling system (with fans and intake grilles) with a passive heat exchanger system that relies on thermal conduction and convection through the heat exchanger surfaces, eliminating the need for mechanical components that create vulnerability to environmental contaminants
2Productivity
If power supply box is mounted on top of vehicle body, then integrated optimization of power performances is achieved, but protection level is reduced due to exposure to elements
Solution Approach 1:
The patent employs a sealed box body structure that acts as a protective shell, enclosing the power supply components and isolating them from the external environment. This sealed enclosure maintains the top-mounted configuration for power optimization while providing comprehensive protection against water, debris, and other environmental factors
Solution Approach 2:
The heat exchanger serves as a mediator that enables thermal interaction with the external environment without requiring physical openings in the sealed box body, thus maintaining both the protective enclosure and the cooling function simultaneously
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 provides reliable cooling for the power supply box, preventing faults and ensuring safe operation by utilizing the air-conditioning system's cooling gas to maintain optimal temperatures and exclude impurities, thus enhancing the protection and performance of the power supply box.
Implementation Method 1
a blowing pipe fixedly arranged on one side outside the box body, wherein, the blowing pipe is provided with an inlet for inflow of a cooling gas... a discharging pipe fixedly arranged on other side outside the box body, wherein, the discharging pipe is provided with an outlet for outflow of the gas having absorbed heat
Implementation Method 2
the discharging pipe is provided with an outlet for outflow of the gas having absorbed heat
Data Source
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AI summary
The present invention provides a hybrid power rail vehicle power supply box and a hybrid power rail vehicle. The hybrid power rail vehicle power supply box includes: a closed box body (10) with a power pack accommodated within the box body (10); a blowing pipe (2) fixedly arranged on one side outside the box body (10), wherein the blowing pipe (2) is provided with an inlet (21) for inflow of a cooling gas and at least one blowing branch pipe (22), and the blowing pipe (2) is communicated with the box body (10) via the blowing branch pipe (22); a discharging pipe (3) fixedly arranged on other side outside the box body (10), wherein, the discharging pipe (3) is provided with an outlet for outflow of the gas having absorbed heat and at least one discharging branch pipe (32), and the blowing pipe (3) is communicated with the box body (10) via the discharging branch pipe (32) at the side facing away from the blowing branch pipe (22). The hybrid power rail vehicle power supply box can utilize the cooling gas in the air conditioning system to effectively cool the power supply box, thus protecting the power pack inside thereof, satisfying outside mounting requirements of the vehicle, and effectively improving the protection level of the power supply box.