Battery Pack Temperature Control Vertical Stacking
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Solution Overview
Problem
Conventional battery pack temperature control structures for electric vehicles increase the overall longitudinal and lateral dimensions due to the placement of air intake ducts and temperature control units, which interferes with the heavy-current disconnecting switch, leading to inefficient space utilization.
Innovation Solution
The battery pack temperature control structure positions the heavy-current disconnecting switch above and the temperature control unit below it, with the unit duct overlapping the switch in the vertical direction, allowing for efficient space usage by avoiding the need for increased case size in the longitudinal and width directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the air intake duct is attached to the battery pack case in a position forward of the heavy-current disconnecting switch, then the temperature control function is provided, but the overall longitudinal dimension of the battery pack case is increased
Solution Approach 1:
The patent transitions from a conventional horizontal arrangement to a vertical arrangement where the temperature control unit is positioned below the heavy-current disconnecting switch. The unit duct extends upward to overlap with the disconnecting switch in the vertical direction, utilizing the vertical dimension to resolve the spatial conflict and maintain compact longitudinal dimensions while providing effective temperature control.
2Temperature
If the temperature control unit is accommodated within the battery pack case, then the temperature control function is integrated, but the overall lateral dimension or longitudinal dimension has to be extended to avoid interference with the heavy-current disconnecting switch
Solution Approach 1:
The patent employs vertical stacking to accommodate both the heavy-current disconnecting switch and the temperature control unit within the same horizontal footprint. By positioning the temperature control unit below the disconnecting switch and allowing the unit duct to overlap vertically, the design integrates the temperature control function without increasing the lateral dimensions of the battery pack case.
3Quantity of substance
If the heavy-current disconnecting switch and temperature control unit are arranged side by side in the inner space, then both components are provided, but the space efficiency is reduced due to increased case size
Solution Approach 1:
The patent implements a nested arrangement where the unit duct of the temperature control unit is positioned to overlap with the heavy-current disconnecting switch in the vertical direction. This nesting approach allows both components to coexist within the same vertical space, maximizing space efficiency and minimizing the overall case volume while accommodating all necessary components.
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 configuration enhances space efficiency within the battery pack case, maintaining compact dimensions while providing effective temperature control for the battery modules, thus preventing interference and ensuring optimal performance.
Implementation Method 1
a unit case (31) accommodating a blower fan (32), the unit duct (35) being connected to the unit case (31) and having a blowout port (35a) opened towards the battery module (2) for producing a temperature controlled air to the battery module (2)
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The purpose of the present invention is to suppress an increase in size of a battery pack case in the vehicle longitudinal direction as well as in the vehicle width direction, even if a heavy-current disconnecting switch and a temperature control unit are mounted within the battery pack case. This invention comprises: a battery module (2) mounted in an inner space of the battery pack case (1); an SD switch (4) that disconnects, by a manual operation, a battery high-power circuit in the battery module (2); and a temperature control unit (3) mounted in the inner space of the battery pack case (1) which produces a temperature-controlled air to be blown to the battery module (2). The SD switch (4) is disposed in an upper space position within the inner space of the battery pack case (1). The temperature control unit (3) is disposed in a space position lower than the heavy-current disconnecting switch and in a position overlapping with the heavy-current disconnecting switch in the vehicle vertical direction.