Battery Pack Temperature Measuring Apparatus Using Wiring Board
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Solution Overview
Problem
The existing temperature measurement systems for electric vehicle battery packs face issues with messy wiring, short-circuit risks, and high manufacturing costs due to single-core wire connections, which complicate the monitoring of current and temperature parameters.
Innovation Solution
A temperature measuring apparatus comprising a heat transfer element, a temperature measuring device, and a wiring board, where the heat transfer element is in conductive contact with the object to be measured, and the temperature measuring device is connected to the wiring board via SMT soldering, using a heat conductive silicon gel pad for efficient heat transfer and insulation, reducing assembly complexity and improving signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-core wire connection is used to transmit current and temperature signals, then the wiring is simple, but the wiring becomes messy and occupies narrow mounting space
Solution Approach 1:
The patent divides the single-core wire connection into separate signal transmission paths by introducing a wiring board with multiple independent signal lines. This segmentation allows current signals and temperature signals to be transmitted through dedicated traces on the wiring board, eliminating the need for bundled single-core wires and reducing wiring chaos while optimizing space utilization.
2Device complexity
If a single-core wire connection is used, then the connection is simple, but the wire is easily worn causing short-circuit issues
Solution Approach 1:
The patent replaces the mechanical wire connection system with a printed circuit board trace system. Instead of using physical wires that can be worn and damaged, the connection is established through conductive traces printed on the wiring board, which are inherently more durable and resistant to wear. This substitution eliminates the short-circuit issues associated with worn wires while maintaining connection simplicity.
3Reliability
If a single-core wire is used to connect with a temperature measuring device, then the connection is established, but the means for stable connection is complex and incurs higher manufacturing cost
Solution Approach 1:
The patent creates a universal connection platform by integrating the temperature measuring device directly onto the wiring board through standardized mounting structures. The wiring board serves multiple functions: signal transmission, device mounting, and mechanical support. This universal approach eliminates the need for complex specialized connection mechanisms, simplifying both assembly and manufacturing while ensuring stable connections.
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 assembly, enhances safety, and reduces manufacturing costs by using a heat conductive silicon gel pad for efficient heat transfer and insulation, while improving signal transmission and layout organization within the battery pack.
Implementation Method 1
a heat transfer element, a temperature measuring device, and a wiring board. The heat transfer element is arranged for being in heat conductive contact with an object to be measured. The temperature measuring device is provided in contact with the heat transfer element
Data Source
AI summary
The present disclosure discloses a temperature measuring apparatus, an electrical assembly, and a battery pack. The temperature measuring apparatus comprises a heat transfer element, a temperature measuring device, and a wiring board. The heat transfer element is arranged for being in heat conductive contact with an object to be measured. The temperature measuring device is provided in contact with the heat transfer element and arranged to be spaced from the object to be measured. The temperature measuring device is arranged for detecting a temperature of the object to be measured and may output a temperature signal. The wiring board is electrically connected with the temperature measuring device to receive and transmit the temperature signal outputted by the temperature measuring device. The present disclosure only requires a heat conductive contact between the heat transfer element and the temperature measuring device of the temperature measuring apparatus, thereby facilitating assembly. Compared with insulated isolation with the object to be measured by glue-filling after the single-core wire is connected with the temperature measuring device, the temperature measuring apparatus of the present disclosure greatly reduces the assembly procedures.