Battery Cooling Apparatus with Fan and Circulation Passage
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Solution Overview
Problem
Existing battery cooling apparatuses face high manufacturing costs due to the use of refrigeration cycle equipment and inadequate heat dissipation, leading to noise, dust ingress, and dew condensation issues when using non-circulation methods.
Innovation Solution
A battery cooling apparatus with a fan device and circulation passage that blows air to cool battery cells, allowing air to circulate and exchange heat within the case while also introducing fresh air from outside and exhausting heated air, utilizing the entire case surface for heat dissipation without refrigeration cycle equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If refrigeration cycle equipment is used to cool battery cells, then cooling effectiveness is improved, but manufacturing cost increases
Solution Approach 1:
The invention extracts and eliminates the refrigeration cycle equipment from the cooling system, replacing it with a simpler air circulation system using a fan and heat dissipation fins, thereby reducing manufacturing cost while maintaining cooling effectiveness
Solution Approach 2:
The invention replaces expensive refrigeration cycle equipment with inexpensive components such as a fan, heat dissipation fins, and air circulation passages, achieving cost-effective cooling without complex machinery
2Temperature
If refrigeration cycle equipment with coolant passages is installed in the case, then cooling performance is improved, but device complexity increases
Solution Approach 1:
The invention removes the complex refrigeration cycle equipment and coolant passages from the case, replacing them with a simple air circulation system that uses a fan and open air passages, significantly reducing structural complexity
Solution Approach 2:
The invention replaces the mechanical refrigeration cycle system with a simpler aerodynamic system using air flow generated by a fan, eliminating the need for compressors, condensers, and coolant circulation mechanisms
3Ease of manufacture
If non-circulation cooling method with open air passages is used, then manufacturing cost is reduced, but noise propagation increases
Solution Approach 1:
The invention segments the case into multiple functional regions including separate air intake passages, air outlet passages, and fan housing, allowing noise generated by the fan to be contained within specific zones and directed away from the external environment
Solution Approach 2:
The fan is nested within a dedicated fan housing that is integrated into the case structure, creating a nested configuration where the fan is enclosed within the case, thereby containing noise internally while maintaining air circulation functionality
4Ease of manufacture
If non-circulation cooling method with open air passages is used, then manufacturing cost is reduced, but dust ingress increases
Solution Approach 1:
The invention segments the air intake and air outlet functions into separate dedicated passages, allowing for selective placement of dust prevention measures at intake points while maintaining overall system simplicity and cost-effectiveness
Solution Approach 2:
The air intake and outlet passages are nested within the case structure, creating a controlled air flow path that prevents uncontrolled dust ingress while maintaining the simplicity of an open air circulation system
5Ease of manufacture
If non-circulation cooling method with open air passages is used, then manufacturing cost is reduced, but dew condensation increases
Solution Approach 1:
The invention segments the thermal management system into distinct heating and cooling zones with separate air flow paths, allowing for targeted temperature control that prevents dew condensation in susceptible areas while maintaining overall system simplicity
Solution Approach 2:
The invention incorporates preliminary heating elements or insulation measures in areas prone to dew condensation, preventing condensation formation before it occurs by maintaining temperatures above the dew point in critical zones
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 solution provides noiseless and efficient cooling of battery cells, reducing manufacturing costs and preventing dust and dew issues, while effectively dissipating heat without the need for complex refrigeration systems.
Implementation Method 1
a fan device disposed in the case for blowing air to cool the battery cells
Implementation Method 2
the air blown from the fan device being sucked into the fan device after having circulated through the circulation passage and having exchanged heat with the battery cells
Implementation Method 3
having exchanged heat with the battery cells
Implementation Method 4
a discharge passage making communication between inside and outside of the case to allow part of the air circulating through the circulation passage to leak to outside the case through the discharge passage
Data Source
AI summary
A battery cooling apparatus includes a case for housing battery cells and a fan device disposed in the case for blowing air through a circulation passage to cool the battery cells. The case includes a discharge passage which makes communication between inside and outside of the case to allow part of the air circulating through the circulation passage to leak to outside the case. The fan device includes a first inflow passage and a second inflow passage. The first inflow passage, which is part of the circulation passage, is provided to allow the air having cooled the battery cells to be sucked into the fan device. The second inflow passage makes communication between the outside of the case and the fan device to allow air outside the case to be sucked into the circulation passage by suction force of the fan device.