Linear Vibrator Terminal Connections Through First Cover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional linear vibrators face challenges in securely fixing the electric wire connection to an outside circuit substrate, leading to instability and potential damage from external shocks.
Innovation Solution
A linear vibrator design featuring a stator with a circuit substrate and a coil block, a first cover with an opening to expose the connection terminal, and a second cover forming a cylindrical shape, allowing direct mounting to an outside circuit substrate, with metal covers to protect against shocks and dummy solder membranes for enhanced bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric wire is used to connect the linear vibrator to the outside circuit substrate, then the connection can be established, but the fixing is not secure and vulnerable to external shocks
Solution Approach 1:
The patent merges the connection terminal with the circuit substrate by forming the connection terminal directly on the circuit substrate and exposing it through the cover, eliminating the need for separate electric wires. This integration strengthens the connection by combining multiple functions (electrical connection and mechanical bonding) into a single unified structure.
Solution Approach 2:
The patent introduces a metal cover with an opening as an intermediary structure that serves dual purposes: it protects the internal components while simultaneously providing a mounting surface for direct bonding to the outside circuit substrate. The cover acts as a mediator that enables secure mechanical attachment while maintaining electrical connectivity.
2Ease of operation
If the circuit substrate is protruded outside the case for connection, then electrical connection is enabled, but the structure becomes vulnerable to shock and destruction
Solution Approach 1:
The patent performs preliminary protection by enclosing the circuit substrate and magnet within a metal cover before assembly. The cover is pre-formed with an opening that exposes only the necessary connection terminal, thereby protecting vulnerable components from shock while maintaining ease of connection through the exposed terminal.
Solution Approach 2:
The patent employs a metal cover that acts as a protective shell, enclosing the fragile internal components (circuit substrate and magnet) while providing a robust external interface. The cover shell protects against mechanical shock while allowing electrical connection through its integrated opening design.
3Strength
If metal cover is used to protect against shock, then protection against external shocks is improved, but the connection terminal access may be compromised
Solution Approach 1:
The patent applies local quality by creating a specific opening in the metal cover at the location where terminal access is needed. The cover maintains its protective metal construction throughout, but locally provides an opening that exposes the connection terminal, thereby combining shock resistance with terminal accessibility in different locations of the same component.
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 enables secure direct mounting of the linear vibrator to an outside circuit substrate, providing protection against external shocks and improving bonding strength, thus enhancing stability and reliability.
Implementation Method 1
The linear vibrator moves the magnet using a magnetic force generated by the coil and a magnetic force generated by the magnet, to generate vibration.
Implementation Method 2
an elastic member coupled to the yoke and the second cover to vertically vibrate the magnet relative to the coil block
Data Source
AI summary
Disclosed is a linear vibrator, the linear vibrator including: a stator including a circuit substrate formed at a bottom surface with a connection terminal and a coil block arranged at an upper surface opposite to the bottom surface and electrically connected to the connection terminal; a first cover arranged at the bottom surface of the circuit substrate and formed with an opening for exposing the connection terminal; a second cover coupled to the first cover in a bottom-opened cylindrical shape; and a vibrator including a magnet arranged inside the coil block, a yoke in which the magnet is mounted, and an elastic member coupled to the yoke and the second cover to vertically vibrate the magnet relative to the coil block.