Voice Coil Motor Base With Molded Metal Circuit Assembly
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Solution Overview
Problem
The production of bases with electronic components and voice coil motors is hindered by complex processes, low production efficiency, and high costs due to the high cost of flexible printed circuit boards (FPCs) and intricate assembly steps.
Innovation Solution
The use of a metallic circuit with branch circuits connected to an electronic component, where the first plastic part integrates and limits the branch circuits, and a second plastic part wraps the metallic circuit, eliminating the need for FPCs and simplifying the assembly process through injection molding and Surface Mount Technology (SMT) welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If FPC is used to connect electronic components in the base, then electrical connection is achieved, but production cost increases and assembly complexity increases
Solution Approach 1:
The patent extracts and removes the FPC component from the base structure, replacing it with a metallic circuit board that integrates the electrical connection function directly into the base body, thereby eliminating the need for separate FPC production and assembly
Solution Approach 2:
The patent merges the FPC functionality into the metallic circuit board that is integrated with the base structure, combining multiple components (base, circuit board, electronic components) into a unified structure that reduces assembly steps
2Productivity
If FPC with Hall element is used in the base, then electronic component connection is achieved, but assembly steps increase and work efficiency decreases
Solution Approach 1:
The patent combines the base structure, metallic circuit board, and electronic components into an integrated assembly where the circuit board is directly mounted on the base and electronic components are welded directly to it, eliminating separate assembly steps for FPC installation
Solution Approach 2:
The electronic components are welded directly onto the metallic circuit board during the base manufacturing process itself, performing the connection action in advance during base production rather than as a separate subsequent assembly step
Data Source
AI summary
Disclosed in the present application are a base with an electronic element and a voice coil motor. The base with an electronic element comprises an electronic element, a metal circuit, a first plastic member, and a second plastic member. The metal circuit is connected to the electronic element and comprises a plurality of branches, a first end of the plurality of branches being connected on a one-to-one basis with pins of the electronic element; the first plastic member is positioned at the connecting position of the metal circuit and the electronic element, and is configured to integrally connect all of the branches of the metal circuit, and limit each branch of the metal circuit; and the second plastic member covers the metal circuit, a second end of the branches of the metal circuit furthest from the electronic element extending out from the second plastic member.