Insert Molded Lens Driving Apparatus Solderable Connections
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Solution Overview
Problem
Existing lens driving apparatuses face reliability issues due to connections breaking under intensive operation, leading to interruptions in the electric circuit and loss of control in driving the lens, primarily because components are secured with adhesives rather than robust connections.
Innovation Solution
The introduction of an insert molded lens driving apparatus with solderable structures, featuring a lens holder with protruding winding posts and metallic insert members that allow for secure electrical connections between components, eliminating the need for adhesives and enhancing mechanical functionality and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If components are connected with adhesives, then assembly is simple and device complexity is reduced, but connection reliability deteriorates under intensive operation
Solution Approach 1:
The patent replaces adhesive bonding (chemical connection) with mechanical insertion and soldering (physical connection). The insert members are mechanically inserted into the lens holder and base, then soldered to create robust electrical and mechanical connections, eliminating the unreliability of adhesive bonds under intensive operation.
Solution Approach 2:
The patent employs composite construction by integrating metallic insert members into the plastic lens holder and base components. This combination of materials (metal inserts in plastic housings) provides both the structural integrity of metal and the assembly advantages of plastic molding, while enabling reliable solderable connections.
2Ease of manufacture
If adhesive connections are used, then manufacturing process is simple, but electrical connection stability deteriorates
Solution Approach 1:
The patent replaces adhesive bonding with a two-step process: mechanical insertion of metal insert members followed by soldering. This substitution provides stable electrical connections while maintaining manufacturing efficiency through automated insertion and soldering processes.
Solution Approach 2:
The insert members serve as intermediary elements between the lens holder, coil, and base. These metal inserts provide dedicated solderable surfaces that facilitate reliable electrical connections without requiring direct soldering between plastic components and circuit elements.
3Reliability
If solderable insert members are added, then connection reliability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent merges the functions of structural support and electrical connection into the insert members. These components simultaneously provide mechanical anchoring for the coil and solderable surfaces for electrical connections, eliminating the need for separate adhesive bonding and electrical connection processes.
Solution Approach 2:
The insert members perform multiple functions: they provide mechanical support for the coil, create solderable connection points, establish electrical pathways, and serve as structural reinforcements. This multi-functionality reduces the need for additional specialized components.
4Productivity
If adhesive bonding is used, then assembly speed is fast, but operational durability deteriorates
Solution Approach 1:
The insert members are pre-installed into the lens holder and base during the molding process or as a preliminary assembly step. This preliminary action creates prepared receptacles that receive the coil and enable subsequent soldering, maintaining assembly speed while ensuring durability.
Solution Approach 2:
The patent replaces adhesive bonding with mechanical insertion followed by soldering. The mechanical insertion maintains fast assembly speed, while the subsequent soldering provides operational durability that adhesives cannot achieve under intensive operation.
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 solderable connections provide a stable and reliable electric conductive path, improving the mechanical functionality and reliability of the lens driving apparatus by ensuring consistent operation and preventing circuit interruptions.
Implementation Method 1
the electromagnetic induction generated when an electric current is supplied to the coil 12 will cause the lens holder 11 to move substantially in the Z axis direction
Data Source
AI summary
The invention provides an insert molded lens driving apparatus including a driving coil having two ends, wherein the lens holder includes multiple insert members for electrical connection partially embedded into the lens holder and spaced apart from each other. Each of the insert members electrically coupled to the driving coil and having a first connecting end extending along a first direction and a second connecting end extending along a second direction, which.