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Voice coil motor, camera module having same and portable electronic device having same
Voice coil motor, camera module having same and portable electronic device having same
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机译:音圈马达,具有该音圈马达的相机模块以及具有该音圈马达的便携式电子设备
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摘要
An exemplary voice coil motor includes a fixed body, a movable barrel, a number of upper rollers, and a number of lower rollers. The fixed body includes a first receiving cavity, a number of upper recesses, and a number of lower recesses. The upper recesses and lower recesses are respectively arranged at opposite ends of the fixed body, and communicate with the first receiving cavity. The movable barrel is movably received in the first receiving cavity. The upper rollers are engagingly received in the corresponding upper recesses, and engage with the movable barrel for applying first friction forces to the movable barrel. The lower rollers are engagingly received in the lower recesses, and engage with the movable barrel for applying second friction forces to the movable barrel.
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