Linear Vibrating Motor Transverse Cross Elastic Support
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Solution Overview
Problem
Conventional linear vibrating motors have limited mass block size due to large elastic support members, leading to increased resonant frequency and reduced low-frequency performance.
Innovation Solution
The design features elastic support members with a transverse cross structure, where two elastic arms with a wider vertical width and narrower transverse width are used, reducing vibration space usage and allowing for a larger mass block, while maintaining or improving elastic restoring force and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional elastic support members (elastic sheets or springs) are used, then the welding firmness and vibration stability are guaranteed, but the vibration space is increased, limiting the mass block size and reducing low-frequency performance
Solution Approach 1:
The elastic support member transitions from a planar structure to a three-dimensional transverse cross structure. The two elastic arms extend in the transverse direction and combine at their ends to form a cross configuration, utilizing spatial dimensions to reduce the projection area in the vibration direction while maintaining structural integrity and elastic restoring force capability
Solution Approach 2:
The elastic support member is divided into two separate elastic arms that are combined at their ends. Each arm can be independently designed and manufactured, and the segmentation allows the structure to achieve both compactness in the vibration direction and sufficient elastic performance through the combined configuration
2Volume of moving object
If the elastic support member uses a transverse cross structure, then the vibration space is reduced and mass block size can be increased, but the structural complexity increases
Solution Approach 1:
The two elastic arms are combined at their ends through welding or other connection methods to form an integrated transverse cross structure. This merging creates a unified component that functions as a single elastic support member, reducing the number of separate parts while achieving the desired compact geometry
Solution Approach 2:
The elastic arms are designed with specific dimensional parameters, where the width in the vertical direction is greater than the width in the transverse direction. This parameter optimization allows the structure to maintain sufficient elastic restoring force while minimizing the space occupied in the vibration direction
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 design enhances low-frequency performance, increases the mass block size, improves vibration stability and balance, and extends the service life of the motor by reducing polarization and noise.
Implementation Method 1
elastic support members, which are located at two ends of the vibrator and configured to support the vibrator and to provide elastic restoring forces
Data Source
AI summary
The present application discloses a linear vibrating motor and relates to the technical field of micro-motors. The linear vibrating motor comprises a housing, a stator and a vibrator, and further comprises elastic support members, which are located at two ends of the vibrator and configured to support the vibrator and to provide elastic restoring forces, wherein the elastic support member comprises two elastic arms; connecting portions are disposed at two ends of the same side of each elastic arm respectively; the connecting portions at one ends of the two elastic arms are combined together; the two elastic arms extend toward the respective connecting portions respectively in a transverse direction to form a transverse cross structure; and the two connecting portions at the other ends of the two elastic arms are in combination with the vibrator and the housing respectively.