Vibration Motor Housing Layout for Thinner Foldable Terminals
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Solution Overview
Problem
The challenge is to reduce the thickness of terminal devices, such as foldable phones, without compromising the performance of the vibration motor, which is limited by its current thickness and mounting space requirements.
Innovation Solution
The solution involves using a middle frame to form a wall plate of the vibration motor's housing, reducing the mounting height of the vibration motor while maintaining the internal accommodation space, thus reducing the overall thickness of the terminal device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the thickness of the vibration motor is reduced to thin the terminal device, then the device thickness is reduced, but the vibration performance deteriorates
Solution Approach 1:
The patent changes the vibration direction from the thickness direction (vertical dimension) to a direction parallel to the thickness direction (horizontal dimension). This dimensional change allows the vibration motor to achieve its required vibration performance without increasing the device thickness, effectively resolving the contradiction between thinning the device and maintaining vibration performance.
2Length of stationary object
If the mounting height of the vibration motor is reduced, then the device thickness is reduced, but the internal accommodation space is insufficient
Solution Approach 1:
By changing the vibration direction to be parallel to the thickness direction rather than perpendicular to it, the patent enables the vibration motor to operate effectively in a reduced height configuration. This dimensional change allows the internal components to be arranged in a space-efficient manner, maintaining adequate accommodation space while reducing the mounting height.
3Length of stationary object
If the vibration motor is thinned, then the device thickness is reduced, but the structural stability deteriorates
Solution Approach 1:
The patent achieves structural stability in a thinned configuration by redirecting the vibration motion to a horizontal plane rather than the vertical thickness direction. This dimensional change allows the vibration motor components to maintain stable structural relationships without requiring increased thickness, as the vibrational forces are distributed differently through the structure.
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 allows for a reduction in the thickness of the terminal device while ensuring the performance of the vibration motor is maintained, thereby improving the device's hand feel, texture, and portability.
Implementation Method 1
an elastic assembly, configured to support the mass block in the housing, and allow the mass block to vibrate reciprocally in the housing
Implementation Method 2
a drive assembly, configured to drive the mass block to reciprocally vibrate on a plane parallel to a plane on which the opening is located
Data Source
Figure 1
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AI summary
This application relates to the field of terminal device technologies, and provides a vibration motor and a terminal device, to reduce a thickness of a terminal device without sacrificing performance of a vibration motor. The terminal device includes a first screen, a first middle frame, and a vibration motor. At least a part of the first screen is located on one side of the first middle frame and is stacked with the first middle frame. The vibration motor is located on a side that is of the first middle frame and that is away from the at least part of the first screen. The vibration motor includes a housing, one end of the housing is opened to form an opening, the opening faces the first middle frame, and an edge of the housing at the opening is fastened to the first middle frame. The terminal device provided in embodiments of this application is used in a communications system.