Actuator Suspension Induction Soldering Resonance Control
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Solution Overview
Problem
Conventional pickup designs for accessing moving storage media face stability and resonance issues due to the accessibility requirements for soldering points, which compromise the mechanical stability and lead to resonance problems.
Innovation Solution
The use of induction soldering for connecting suspension wires to the actuator, with reinforcement elements and small openings for soldering paste introduction, enhances stability and reduces resonance by allowing a more secure and efficient soldering process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If soldering points are made accessible for conventional soldering, then ease of manufacture is improved, but mechanical stability deteriorates and resonance problems occur
Solution Approach 1:
The patent replaces conventional mechanical soldering (requiring physical access with soldering guns) with induction soldering, which uses electromagnetic induction to heat and solder components through non-contact energy transfer. This allows soldering points to be located in positions that would be mechanically inaccessible to conventional tools, thereby improving mechanical stability while maintaining ease of manufacture through the induction process.
Solution Approach 2:
The patent introduces induction heating as an intermediary mechanism between the soldering process and the actuator structure. Instead of requiring direct physical access to soldering points, the induction field acts as a mediator that can deliver soldering energy through or near the actuator structure, allowing stable construction while enabling the soldering process.
2Stability of the object's composition
If actuator structure is made stable with covered soldering points, then resonance problems are reduced, but ease of manufacture deteriorates
Solution Approach 1:
The patent replaces the mechanical constraint of requiring open access to soldering points with an electromagnetic field-based induction soldering system. This allows the actuator to have stable, covered construction with soldering points located in positions inaccessible to conventional tools, while the induction process can still effectively solder the components through non-contact energy transfer.
3Ease of manufacture
If conventional soldering is used with accessible soldering points, then ease of manufacture is improved, but service and maintenance needs increase
Solution Approach 1:
The patent replaces conventional mechanical soldering with induction soldering, creating more reliable solder joints that are less prone to failure. The induction process provides more uniform and controlled heating, resulting in higher quality solder connections that require less maintenance and repair, offsetting the increased manufacturing complexity through improved long-term 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
This approach results in a more stable actuator construction with reduced resonance issues, enabling effective access to storage media while minimizing maintenance and service needs.
Implementation Method 1
the soldering points are made by induction soldering
Data Source
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AI summary
A pickup (P) for accessing moving storage media (D) carrying substantially parallel information tracks (T) has a carrier (C), a movable actuator (A) with a lens (3), and suspension wires (4) joining the carrier (C) and the actuator (A). The actuator (A) is movable in at least a tracking direction (X) and a focus direction (y. The suspension wires (4) are soldered to the actuator (A) by soldering points (5). According to the invention, the soldering points (5) are made by induction soldering.