Single-shaft motor and camera module

Abstract

The invention discloses a single-shaft motor. The single-shaft motor comprises a mounting seat, a carrier and at least one driving assembly, the mounting base comprises a first side wall and a second side wall which are arranged at intervals, the carrier comprises a bearing plate and a driving block arranged on one side face in a protruding mode, and first and second rotating shafts are arranged at the two ends of the bearing plate and pivoted to the first and second side walls respectively; each driving assembly comprises two fixing pieces and a shape memory alloy (SMA) driving piece, the SMA driving pieces are hung on the driving blocks, included angles are formed between the two ends of the SMA driving pieces and the hanging points, when the SMA driving pieces are heated to shrink, the included angles between the two ends of the SMA driving pieces and the hanging points are changed, and force can be applied to the driving blocks to drive the carrier to rotate around the first rotating shaft and the second rotating shaft. According to the single-shaft motor, jumping or shaking in the rotating process is reduced through the rotating shaft, the carrier rotates stably, the adjusting precision is improved, the carrier has a large rotating angle, and therefore the single-shaft motor can be used for achieving the scanning function or the anti-shaking compensation function, and the application range is wider. The invention further discloses a camera module.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a single-axis motor with a larger adjustment angle and a camera module. Background technique [0002] Nowadays, users have higher and higher requirements for shooting electronic devices (such as mobile phones, tablet computers, etc.). Therefore, the functions of camera modules configured on electronic devices are becoming more and more diverse, such as panoramic shooting, wide-angle shooting, telephoto shooting Shoot and so on. [0003] The current method of shooting a panorama is generally that the user holds the electronic device and rotates it in a horizontal or vertical position. The camera records the image and combines it with software to obtain a panoramic photo. Since the user will inevitably shake when rotating the electronic device, the rotation speed is also The time is fast and the time is slow, so the final composite photo may be misaligned or stretched, whi...

AI Technical Summary

Problems solved by technology

Since the periscope camera module folds the optical path, the requirements for optical image stabilization (OIS: Optical image stabilization) are higher. At present, the common way is to drive the prism assembly to rotate through an electromagnetic drive device or an electro-deformation drive device. Realize optical anti-shake, but all have the disadvantages of small anti-shake angle and poor anti-shake effect

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