Brushless DC Vibration Motor

Abstract

The invention relates to an electric-brush-free DC vibration motor which is characterized in that the vibrator on the rotor is fixed between the bracket and the permanent magnet so that the upper and lower surfaces of the vibrator are firmly fixed.The weight of the vibrator can be increased corresponding to the area of the upper end of the permanent magnet, so that it is advantageous to increase the amount of vibration, and the upper and lower ends of the bearing coupling portion are provided with a card holder for preventing the bearing from being disengaged.

Description

technical field [0001] The invention belongs to the field of vibration motors, and relates to brushless direct current (Brushless Direct Current: BLDC) vibration motors for small electronic instruments such as mobile phones, portable game machines, earphones, and wearable devices. Background technique [0002] In order to facilitate the use of consumers, the smartphone market continues to load various functions necessary for daily life. It is necessary to install hardware in a limited space, and it is necessary to miniaturize the hardware. Vibration motors play the role of transmitting signals on mobile communication terminals such as mobile phones and timers, and are widely used in fields that require vibration, such as: in order to achieve the simulation effect of games, they are used in game consoles; It is used as a reminder function on electronic instruments. The above-mentioned electronic products focus on miniaturization, so the vibration motors used in the above-ment...

AI Technical Summary

Problems solved by technology

The high-speed rotating vibrator 20 will generate extremely strong centrifugal force. During long-term use, it can withstand the centrifugal force and maintain a stable bonding state. It needs sufficient bonding force. When the electronic product with the vibration motor 10 falls Affect the phenomenon that the vibrator 20 may be easily detached from the bracket 16

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