Thin linear vibration motor slides into smartphones
Vibration motors in commercially available smartphones and smart watches are typically an eccentric motor which is used to create a simple pattern of vibration to notify users of an incoming message. These motors are equipped with functions to control vibrations to make users feel as if they were pressing a button. They are also designed to vibrate in synchronisation with games or activity on screen for immersive experiences.
Nidec has developed the Slider linear vibration motor, based on its magnetic circuit design technology. It has 42 per cent less volume that the company’s previous vibration motors and – at 2.0mm – is believed to be the thinnest available. Using it will result in more compact and thinner devices, said Nidec.
The slider measures 8.0 x 15 x 2.0mm and has a rated voltage of 2.0Vrms. Resonant frequency is 190 to 240Hz, with a rise time of 30ms. The Slider’s rated current is 220mArms (maximum) and resistance is 9.2Ohm. The Slider motor’s power consumption is just 440mW.
Nidec was established in Kyoto, Japan in 1973. In 1979, Nidec became the first company in the world to successfully commercialise a direct drive spindle motor for HDDs (hard disk drives) based on a brushless DC motor.
Today, the company manufactures a comprehensive range of motors, drives, generators and related products for a diverse range of applications including computers, smartphones, home appliances, automobiles, manufacturing plants and robots.
