Vibration Motor Elastic Support and T-Shaped Limit Block Design
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Solution Overview
Problem
Vibration motors in electronic devices face issues where excessive driving force leads to collisions between the vibrating component and the housing, causing loss of function and noise, and over-torque causes deformation and disconnection of limit blocks.
Innovation Solution
A vibration motor design featuring a T-shaped limit block with a large contact area and a corner missing part to prevent wrong assembly, along with an elastic support system to absorb impacts and prevent deformation, ensuring proper alignment and secure welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the driving force of the vibration motor is increased to ensure enough driving capability, then the motor performance is improved, but the vibrating component collides with the housing causing loss of function and noise
Solution Approach 1:
The patent introduces an elastic supporting part between the vibrating component and the housing that acts as a cushioning element. This elastic part absorbs the impact energy when the vibrating component moves, preventing direct collision with the housing and thereby maintaining motor reliability even when driving force is high.
2Power
If the driving force of the vibration motor is increased to ensure enough driving capability, then the motor performance is improved, but noise is generated due to collision
Solution Approach 1:
The elastic supporting part serves as a cushioning element that absorbs impact energy and reduces vibration transmission to the housing. By cushioning the vibrating component's movement, it prevents direct collision with the housing, thereby reducing noise generation while maintaining high driving force capability.
3Reliability
If a limit block is used to prevent collision, then the housing protection is improved, but the limit block disconnects due to excessive torque
Solution Approach 1:
The elastic supporting part acts as an intermediary element between the vibrating component and the housing. Instead of using a rigid limit block that directly contacts the housing and承受s excessive torque, the elastic supporting part mediates the interaction by providing flexible support and absorbing impact forces, thereby protecting the housing without subjecting any single component to excessive stress.
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 effectively prevents collisions between the vibrating component and the housing, reduces the risk of housing deformation and limit block disconnection, and ensures proper assembly, maintaining motor functionality and reducing noise.
Implementation Method 1
The vibration motor is a component which uses the generation principle of electromagnetic force to convert electric energy into mechanical energy
Implementation Method 2
the elastic support part suspends and supports the vibrating component in the accommodation space
Data Source
AI summary
An embodiment of the present invention provides a vibration motor. The vibration motor includes a vibrating component movable along a vibration direction; a fixation component including a housing with an accommodation space; an elastic support part suspending the vibrating component in the accommodation space; and a number of limit blocks fixedly connected with the housing. Each of the limit blocks includes a first horizontal part and a second horizontal part. The second horizontal part extends from the first horizontal part towards the housing along the vibration direction. The vibration motor provided by the present invention can effectively solve the problem that the vibration motor loses function because of the collision between the vibrating component and the housing