Thermistor Holder Locking Structure for Stable Battery Cell Sensing
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Solution Overview
Problem
Existing conductive modules face challenges in simplifying the installation of thermistors while maintaining stable temperature measurement results for battery cells, as the thermistors need to be kept in contact with the surface of the battery cells to ensure accurate temperature readings.
Innovation Solution
A conductive module and temperature measuring device that includes a bus bar, wiring component, and thermistor housed within a housing member, featuring a thermistor holder with locking mechanisms to securely attach the thermistor to the battery module, ensuring consistent contact with the battery cell surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a thermistor is installed in a battery module to detect surface temperature, then temperature measurement function is achieved, but installation complexity increases and measurement stability becomes difficult to ensure
Solution Approach 1:
The patent combines the thermistor holder with the bus bar housing tool into an integrated assembly. The thermistor holder is positioned within the bus bar housing tool structure, allowing both the electrical connection component (bus bar) and temperature sensing component (thermistor) to be installed simultaneously as a single unit, thereby simplifying installation while ensuring measurement stability
Solution Approach 2:
The thermistor is pre-mounted on the thermistor holder before final assembly into the battery module. The thermistor holder includes pre-formed locking structures and positioning features that ensure proper alignment and contact with the battery cell surface before installation, eliminating the need for complex post-installation adjustments
2Reliability
If a thermistor holder with locking mechanisms is used to secure the thermistor, then temperature measurement stability is improved, but device complexity increases
Solution Approach 1:
The bus bar housing tool structure serves multiple functions: it houses the bus bar for electrical connection, provides mounting structure for the thermistor holder, and includes integrated locking features. This multi-functional design achieves reliable thermistor securing without adding separate dedicated components, thereby maintaining measurement stability while controlling device complexity
Solution Approach 2:
The thermistor holder is nested within the bus bar housing tool structure. The locking portions of the thermistor holder engage with corresponding features in the bus bar housing tool, creating a compact integrated assembly where the thermistor securing mechanism is contained within the existing electrical connection structure, avoiding additional external components
Data Source
AI summary
A thermistor holder includes: a base portion disposed to face a restraint member; and thermistor holding bodies. A thermistor holding body includes: an insertion hole formed in the base portion and into which a thermistor is to be inserted; a thermistor housing portion that cylindrically protrudes from a peripheral edge portion of the insertion hole and that is to be inserted into a locking hole of the restraint member; a first locking portion that protrudes from the peripheral edge portion of the insertion hole in each of cutouts and that locks a claw portion inserted into the locking hole to a peripheral edge portion of the locking hole and holds the claw portion to the restraint member; and a pair of second locking portions that protrude from the peripheral edge portion of the insertion hole in a direction opposite to the thermistor housing portion and lock the thermistor.