Smart Key Battery Retention via Elastic Resilient Mechanism
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Solution Overview
Problem
Existing smart key battery securing structures face challenges with deformation, assembly issues due to battery size mismatch, and free movement, especially when battery sizes differ from the securing structure.
Innovation Solution
A smart key design featuring a base part, first and second terminal parts for electrical connection, a separation prevention part to prevent battery dislodgment, and a pressure applying part with a resilient component providing elastic restoring force for secure battery retention, allowing for various battery sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hard contact rib or interference-fit coupling structure is used to secure the battery, then the battery can be retained in the smart key, but the terminal can easily deform and the assembly becomes difficult when battery sizes vary
Solution Approach 1:
The patent changes the securing mechanism from a rigid hard contact rib to a flexible resilient part that can elastically deform. The resilient part is pressed against the battery side surface, using elastic deformation to provide securing force while adapting to different battery sizes and shapes, thereby facilitating easier assembly without compromising retention reliability
Solution Approach 2:
The patent employs a resilient part that functions as a flexible element to secure the battery. This flexible component can deform elastically to accommodate variations in battery dimensions while maintaining secure contact, replacing the rigid interference-fit structure and enabling smoother assembly for diverse battery sizes
2Ease of operation
If the battery size is large compared to the securing structure, then the battery cannot be inserted into the securing structure, but reducing the securing structure size causes the battery to become loose and move freely
Solution Approach 1:
The patent introduces a dynamic securing mechanism where the resilient part can elastically deform to adapt to different battery sizes. When a large battery is inserted, the resilient part compresses to accommodate it; when a small battery is used, the resilient part expands to maintain secure contact, thereby maintaining both ease of insertion and position stability across varying battery dimensions
Solution Approach 2:
The resilient part changes its physical state through elastic deformation to match different battery sizes. By adjusting its compression level, the same securing structure can securely hold both large and small batteries without preventing insertion or allowing free movement, resolving the contradiction between insertion ease and position stability
3Reliability
If a rigid securing structure is used, then the battery can be held firmly, but the terminal deforms easily and assembly is difficult when battery sizes vary
Solution Approach 1:
The patent replaces the rigid securing structure with a resilient part that uses elastic deformation to secure the battery. This flexible component absorbs mechanical stress through deformation rather than transmitting it to the terminal, thereby maintaining reliable battery securing while preventing terminal deformation and improving durability
Solution Approach 2:
The resilient part acts as a cushioning element between the securing structure and the battery. It absorbs and distributes mechanical forces through elastic deformation, preventing concentrated stresses that would cause terminal deformation, thus protecting the terminal while maintaining secure battery retention
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
Enables smooth battery assembly and secure retention without terminal or battery damage, preventing free movement by applying appropriate elastic force, suitable for diverse battery sizes and shapes.
Implementation Method 1
a pressure applying part which is connected to the second terminal part so as to enable contact with the battery and which maintains contact between the battery and the separation prevention part by means of an elastic restoring force
Data Source
AI summary
A smart key for a vehicle includes: a base part; a first terminal part coupled to the base part and which makes contact with a first electrode of a battery so as to be electrically connected to the battery; a second terminal part disposed facing the first terminal part to form an insertion part where the battery is inserted and which makes contact with a second electrode of the battery to be electrically connected to the battery; a separation prevention part which extends from the second terminal to the base part and which abuts the side surface of the battery to prevent the battery from separating from the insertion part; and a pressure applying part which is connected to the second terminal part so as to enable contact with the battery and which maintains contact between the battery and the separation prevention part by an elastic restoring force.