Elastic Rubber Sensor Mount for Battery Temperature Monitoring
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Solution Overview
Problem
Existing devices for attaching and positioning temperature sensors on battery cells are complex, require additional sealing, and lack direct contact, leading to reduced measurement accuracy and increased inertia in dynamic temperature monitoring.
Innovation Solution
A device using an elastic rubber element to securely fasten and position the temperature sensor on the battery cell surface, ensuring full-surface contact and eliminating the need for additional attachment methods, with the rubber element designed to compensate for tolerances and shield the sensor from environmental influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex clip structure with sealing members is used to attach the temperature sensor, then the sensor can be securely fastened, but the device complexity increases and additional sealing components are required
Solution Approach 1:
The patent uses an elastic rubber element with a specific geometric design that flexes and deforms to create a secure attachment. The rubber element's elasticity allows it to clamp the sensor against the battery surface without requiring complex mechanical clips or additional sealing members, thus reducing device complexity while maintaining secure fastening.
Solution Approach 2:
The rubber element's elastic properties allow it to change shape and adapt to tolerance variations in the battery surface and sensor mounting hole. This parameter change (elastic deformation) enables a simple single-component design to achieve reliable attachment that would otherwise require complex multi-component structures.
2Ease of manufacture
If the temperature sensor is not in direct contact with the measurement surface, then the mounting is simpler, but the measurement accuracy decreases and inertia increases
Solution Approach 1:
The elastic rubber element acts as a flexible mounting structure that forces the temperature sensor into direct contact with the battery measurement surface. The rubber's elasticity ensures consistent pressure and full-surface contact, achieving high measurement accuracy while the sensor remains integrated within the simple rubber housing.
Solution Approach 2:
The rubber element's curved, elastic structure allows it to conform to the measurement surface and push the sensor into full contact. This curved flexible design achieves direct sensor-to-surface contact without requiring complex rigid mounting mechanisms.
3Reliability
If additional attachment methods like gluing are used, then the sensor can be securely fixed, but the device complexity and manufacturing steps increase
Solution Approach 1:
The elastic rubber element is designed to automatically secure the temperature sensor through its own elastic deformation when installed. The rubber's geometric design creates inherent clamping force that fixes the sensor without requiring external attachment methods like gluing, clips, or additional fasteners, thus simplifying manufacturing while ensuring reliable fixation.
4Ease of manufacture
If the rubber element does not compensate for tolerances, then the manufacturing is simpler, but the measurement accuracy decreases due to air gaps
Solution Approach 1:
The elastic rubber element changes its physical parameters (shape, volume, pressure) through elastic deformation to compensate for manufacturing tolerances in the battery surface and sensor mounting hole. This allows the sensor to maintain full-surface contact despite tolerance variations, achieving high measurement accuracy without requiring precision manufacturing.
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 solution provides high measurement accuracy and fast response times with minimal measurement errors, as the sensor is securely pressed against the battery cell surface, maintaining direct contact and reducing environmental interference.
Implementation Method 1
the rubber element 3 is made of an elastic material and has a geometric design which allows it to be inserted into the holding element 2 in an uncompressed state and to expand in all radial directions when compressed
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The device (1) has a holding element (2), in which a rubber element (3) is arranged. The rubber element has a cylindrical shape in sections and has a recess, in which a sensing portion (4.1) of the temperature sensor (4) is received. The sensing portion of the temperature sensor is introduced normal to longitudinal axis of the rubber element. The sensing portion is pressed against the surface of the battery cell and is held in position by the rubber element. The temperature sensor is attached detachably in the rubber element.