Battery Housing Feed-Through for Fluid Temperature Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery housing assemblies for vehicle traction batteries that are temperature-controlled by fluid face complexity and high costs due to the need for finely machined surfaces and threaded screw connections, making installation and production challenging, especially when using metal materials, and are unsuitable for plastic or composite materials.
Innovation Solution
A battery housing assembly with through-openings for feeding inlet and outlet tubes, eliminating the need for connection flanges and threaded screw connections, using closure elements to seal and mount the tubes externally, allowing for simplified installation and compensation of material tolerances, and using a heat exchanger element for efficient temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection flanges with finely machined surfaces and threaded screw connections are used to install the heat transmission device, then the sealing and connection reliability is improved, but the manufacturing complexity and production costs increase significantly
Solution Approach 1:
The patent integrates the sealing function directly into the heat transmission device's inlet and outlet connections by providing sealing surfaces that mate with corresponding surfaces on the battery housing. This merging of sealing and connection functions eliminates the need for separate connection flanges and threaded screw connections, thereby maintaining sealing reliability while significantly reducing manufacturing complexity
Solution Approach 2:
The invention extracts and removes the complex connection flange structure with finely machined surfaces and threaded screw connections from the battery housing. Instead, it uses simple through-openings with integrated sealing surfaces on the heat transmission device, eliminating the disturbing complex connection mechanism while preserving the essential sealing function
2Strength
If threaded screw connections are used for connecting the heat transmission device and temperature-control circuit, then the connection strength is improved, but the installation workload and production costs increase
Solution Approach 1:
The patent combines the connection and sealing functions into a single integrated structure where the heat transmission device directly mates with the battery housing through through-openings using sealing surfaces. This eliminates the need for separate threaded screw connections, maintaining connection strength while dramatically reducing installation workload
Solution Approach 2:
Instead of creating strong connections through threaded screw mechanisms that require complex assembly, the invention inverts the approach by using simple through-openings with integrated sealing surfaces that provide both connection and sealing in a single, straightforward installation step
3Adaptability or versatility
If connection flanges are provided on the battery housing for heat transmission device installation, then the adaptability and serviceability are improved, but the production complexity and costs increase
Solution Approach 1:
The patent merges the adaptation and serviceability functions into the basic through-opening structure with sealing surfaces. The heat transmission device can be installed and serviced by simply removing and reinstalling the device through the through-openings, maintaining adaptability while eliminating production complexity associated with connection flanges
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 simplifies the assembly and installation of the heat transmission device, reduces costs, and provides a compact, stable, and environmentally protected battery housing assembly with improved reliability and reduced risk of leaks, suitable for various materials including plastics and composite materials.
Implementation Method 1
a heat transmission device having an inlet tube, an outlet tube and a heat exchanger element arranged fluidically therebetween, the fluid being able to flow through the heat transmission device from the inlet tube via the heat exchanger element to the outlet tube
Data Source
AI summary
A battery housing arrangement, in particular a battery housing assembly of a vehicle traction battery which can be temperature-controlled by a fluid, comprises a battery housing which encloses an interior space for receiving battery cells, and a heat transmission device which has an inlet tube, an outlet tube and a heat exchanger element arranged fluidically therebetween. The fluid is able to flow through the heat transmission device from the inlet tube via the heat exchanger element to the outlet tube. The heat exchanger element can be accommodated in the battery housing. The battery housing has at least one through-opening for feeding through the inlet tube and the outlet tube, and the battery housing has at least one closure element which is inserted into the at least one through-opening and forms a closure between the inlet tube and/or the outlet tube and the at least one through-opening.