Fluid heating device for battery heating of electric vehicle
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Solution Overview
Problem
Existing fluid heating devices for electric vehicle batteries face durability issues and leakage problems due to prolonged operation, which can lead to malfunction.
Innovation Solution
A fluid heating device design that includes a housing with separate spaces for fluid flow and a heater with a support section, heating section, and head section connected by adhesive, along with a filter section to prevent foreign substances from entering the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the heating device operates for a long period of time, then the battery heating function is maintained, but leakage occurs due to deterioration at connection parts
Solution Approach 1:
The heating device is divided into separate modules: housing, heater assembly, and connection parts. Each module can be independently manufactured, assembled, and replaced. The heater assembly is detachably connected to the housing, allowing the heater to be replaced without replacing the entire heating device, thus maintaining reliability over long operating periods.
Solution Approach 2:
The connection parts are designed with pre-formed sealing structures and sealing members (O-rings or gaskets) that are installed before assembly. The housing includes pre-formed connection structures that guide proper alignment and sealing, preventing leakage before it occurs during operation.
2Adaptability or versatility
If the heating device is designed with multiple connection parts, then the heating function is achieved, but deterioration at connection parts causes leakage
Solution Approach 1:
Sealing members (O-rings or gaskets) are introduced as intermediary elements between connection parts. These sealing members create reliable seals at all connection interfaces (heater to housing, housing to battery pack), preventing fluid leakage while maintaining the necessary connection structures for heating function.
Solution Approach 2:
The heating device uses composite construction with the heater assembly (containing heating element and fluid passages) as a separate module from the housing. This modular composite structure allows each part to be optimized for its specific function while reducing the number of permanent connections that can deteriorate.
3Device complexity
If the heater is directly connected to the housing, then the structure is simple, but leakage occurs due to deterioration at the connection part
Solution Approach 1:
The heating device is segmented into a housing and a separate heater assembly that can be detachably connected. This segmentation increases structural complexity slightly but dramatically improves reliability by allowing the heater to be replaced without replacing the entire device, and by enabling better sealing designs at the connection interface.
4Productivity
If foreign substances enter the fluid system, then the heating function continues, but malfunction occurs due to contamination
Solution Approach 1:
The connection structures are designed with features that prevent foreign substances from entering the fluid system in the first place. This includes sealed connections, protective covers for open ports, and filtration elements positioned to intercept contaminants before they can enter the heating system, thereby maintaining both productivity and reliability.
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 prevents malfunction due to leakage, secures durability, and extends the life of the heating device by ensuring heat resistance and stability of the heating system.
Implementation Method 1
a heating module provided between the first tube and the second tube to generate heat
Implementation Method 2
a heating section connected to the support section with an adhesive, having at least a portion extending into the first space
Data Source
AI summary
In order to provide a fluid heating device for battery heating of an electric vehicle to ensure durability of a heating device and prevent malfunction of the device due to submersion, a fluid heating device for battery heating of an electric vehicle of the present disclosure includes a housing configured to allow fluid to flow in and out and form a first space in which the fluid is heated, and a heater configured to form a path through which the fluid flows into the first space and heat the fluid.