Backpack Power-Off Reset Temperature Limiter with Integrated Clamping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing temperature controllers, such as bimetal-sheet overheating controllers, face issues with the bimetal sheet and power-receiving terminal falling off due to inadequate fixation, leading to complex structures that complicate assembly and increase the risk of overheating protection failure.
Innovation Solution
A backpack power-off reset temperature limiter with an insulating base, power-receiving elastic piece, and arch-shaped temperature sensing sheet, featuring injection molding connections, fixing and assembly clamping positions, anti-off clamping positions, and anti-collision guard plates to securely hold the temperature sensing sheet and prevent it from falling off or deforming excessively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the bimetal sheet and power-receiving terminal are designed to spring up instantly at the critical point, then the overheating protection response speed is improved, but the structure requires enough space which increases the device complexity
Solution Approach 1:
The patent integrates the power-receiving terminal and the bimetal sheet into a unified structure where the terminal serves dual purposes: as an electrical contact and as part of the thermal sensing mechanism. This merging eliminates the need for separate spring-up components, reducing structural complexity while maintaining fast response speed.
Solution Approach 2:
The power-receiving terminal is designed to perform multiple functions: it receives power, senses temperature through thermal conduction, and acts as the switching element itself. This multi-functionality reduces the number of components needed, simplifying the overall structure while preserving the instantaneous response capability.
2Reliability
If the bimetal sheet and power-receiving terminal are designed to spring up instantly, then the overheating protection effectiveness is improved, but the components are easy to fall off which worsens the reliability
Solution Approach 1:
By combining the power-receiving terminal and bimetal sheet into an integrated structure, the patent eliminates the problem of separate components falling off. The unified design ensures that the thermal sensing element and electrical contact remain permanently attached, maintaining both reliability and structural stability.
Solution Approach 2:
The bimetal sheet is nested within or integrated with the power-receiving terminal structure, creating a hierarchical arrangement where the thermal sensing element is contained within the electrical contact framework. This nesting ensures secure positioning while allowing the necessary spring-up motion for protection activation.
3Stability of the object's composition
If complex clamping structures are used to prevent the temperature piece from falling off, then the component fixation stability is improved, but the structure complexity increases and assembly becomes difficult
Solution Approach 1:
The patent eliminates complex clamping structures by merging the temperature-sensing function directly into the power-receiving terminal. The integrated design inherently prevents component separation without requiring additional clamping mechanisms, thus maintaining fixation stability while reducing structural complexity and simplifying assembly.
4Device complexity
If simple fixation structures are used for the temperature sensing sheet, then the device complexity is reduced and assembly is simplified, but the temperature sensing sheet is prone to displace or fall off which worsens the reliability
Solution Approach 1:
The patent merges the temperature sensing function with the power-receiving terminal structure, creating an integrated component that inherently prevents displacement. The unified design eliminates the need for separate fixation structures while ensuring the temperature sensing element remains securely positioned, thus achieving both simplicity 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 design ensures a stable, compact, and easily assembled temperature limiter that effectively prevents the temperature sensing sheet from displacing or falling off, while providing collision and electric-arc protection, enhancing the structural integrity and assembly efficiency.
Implementation Method 1
When the temperature reaches a critical point, the bimetal sheet springs up and deforms
Implementation Method 2
the bimetal sheet springs up and deforms, and the power-receiving terminal is driven to cut-off the circuit
Implementation Method 3
the first terminal and the second terminal are respectively connected to the two ends of the insulating base in an injection molding mode
Data Source
AI summary
The present invention relates to the technical field of temperature controllers, and more particularly, to a backpack power-off reset temperature limiter, which comprises an insulating base, a first terminal, a second terminal, a power-receiving elastic piece and an arch-shaped temperature sensing sheet. The power-receiving elastic piece is arranged on the upper end surface of the insulating base. One end of the power-receiving elastic piece is fixedly connected with the first terminal, and the other free end of the power-receiving elastic piece is electrically connected with the second terminal. The two ends of the power-receiving elastic piece are respectively provided with a fixing clamping position that is clamped with an end part of the temperature sensing sheet, and the two sides of the power-receiving elastic piece are respectively provided with an assembly clamping position that is matched with the temperature sensing sheet.