Stick-Type Vibrating Driver with Track PCB
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Solution Overview
Problem
Conventional vibrating drivers are bulky, heavy, and inefficient in transmitting vibration energy, especially when attached to long or curved surfaces, and require multiple units for large objects, with weak bonding forces.
Innovation Solution
A stick-type vibrating driver utilizing a track-type voice PCB with a multi-layer structure and a movable coil plate, featuring a magnetic circuit with spaced magnetic bodies and metal suspensions to enable vertical vibration and adjustable length, allowing attachment to various shapes and surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional cone-type vibrating driver with circular magnet and voice coil is used, then the structure is simple to manufacture, but the device becomes bulky and heavy, and vibration transmission efficiency decreases
Solution Approach 1:
The patent divides the conventional circular voice coil structure into segmented track-type PCB coils arranged in a linear configuration. This segmentation allows the magnetic field and coil structure to be distributed along a line rather than concentrated in a circle, reducing overall device weight while maintaining effective vibration transmission through the linear arrangement of multiple smaller magnetic interactions.
Solution Approach 2:
The patent transitions from a two-dimensional circular voice coil arrangement to a three-dimensional linear track structure with PCB coils stacked and arranged along a longitudinal axis. This dimensional change enables more efficient space utilization and reduces the radial footprint, allowing for lighter construction while maintaining or improving vibration transmission efficiency through the extended linear magnetic circuit.
2Loss of energy
If a large-sized unit of vibrating driver is used, then the magnetic body must be large and circular to maintain structure, but this increases weight and reduces vibration transmission effectiveness
Solution Approach 1:
The patent segments the large circular magnetic body into multiple smaller linear magnetic bodies arranged along a track. Each smaller magnetic body interacts with corresponding PCB coils to produce vibration, distributing the total magnetic force across multiple points rather than requiring one large circular magnet. This segmentation reduces the weight of each individual magnetic component while maintaining overall vibration transmission effectiveness through cumulative effect.
Solution Approach 2:
The patent employs composite construction combining PCB (printed circuit board) material for the coil structure with traditional magnetic materials arranged in a linear configuration. This composite approach allows the magnetic circuit to achieve the required strength and vibration transmission capability with reduced material quantity compared to a solid circular magnetic body, thereby reducing weight while maintaining effectiveness.
3Reliability
If conventional vibrating drivers are used on curved surfaces, then bonding force becomes weak or bonding fails completely
Solution Approach 1:
The patent designs the linear track-type vibrating driver with flexible mounting capabilities that can adapt to curved surfaces. The linear configuration allows the driver to conform to surface curvature better than rigid circular structures, and the distributed mounting points along the linear track enable flexible bonding arrangements that maintain adequate bonding force on curved substrates through adaptive positioning.
Solution Approach 2:
By transitioning from a planar circular design to a three-dimensional linear track structure, the patent enables the vibrating driver to wrap around or conform to curved surfaces more effectively. The linear arrangement can be bent or angled to match surface geometry, providing multiple bonding interfaces along the length of the track that collectively maintain reliable attachment on curved surfaces where a single-plane circular driver would fail.
4Area of stationary object
If multiple vibrating drivers are used for large objects, then coverage is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent combines multiple coil-magnetic body interactions into a single integrated linear track structure. Instead of using separate circular vibrating drivers spaced across a surface, the linear track consolidates multiple vibration sources into one continuous structure that can cover larger areas while functioning as a unified device, thereby reducing the number of separate units required and simplifying installation.
Solution Approach 2:
The linear track-type vibrating driver is designed as a universal structure that can serve multiple functions: it provides vibration transmission, can be configured in different lengths to cover various areas, and can be mounted on different surface geometries. This multi-functionality allows a single driver type to replace multiple specialized drivers, reducing overall system complexity while maintaining adequate coverage area.
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 solution results in a slim, lightweight vibrating driver that can be easily adjusted in length and attached to curved surfaces, offering a wide range of applications and improved vibration transmission efficiency.
Implementation Method 1
a magnetic circuit part formed inside the outer body and including one pair of magnetic bodies spaced apart with a movable coil plate therebetween; a vibrating part formed inside the outer body and including at least the one pair of magnetic bodies configured to vertically vibrate according to driving of the magnetic circuit part
Data Source
AI summary
The present invention relates to a stick-type vibrating driver and, more specifically, to a stick-type vibrating driver implemented so as to enable vibration to be transmitted, by using a planar movable coil plate and a stick-shaped magnet, to an object to be vibrated. The stick-type vibrating driver according to the present invention can comprise: an outer body formed in a stick shape; a magnetic circuit part formed inside the outer body, and having a pair of magnetic bodies spaced apart with the movable coil plate therebetween; a vibrating part formed inside the outer body, and vertically vibrating according to the driving of the magnetic circuit part in a state in which the upper and lower ends of the movable coil plate are fixed; and upper and lower metal suspensions respectively connected between the outer body and the vibrating part.