Substrate OIS magnetomotive mechanism and camera module employing same

Abstract

The invention belongs to the technical field of imaging equipment, and discloses a substrate OIS magnetic motion mechanism and a camera module adopting the same. The substrate OIS magnetic motion mechanism is arranged in the camera module to provide motion compensation for a sensor, and the substrate OIS magnetic motion mechanism comprises an OIS base; the OIS base is movably connected with the camera module, and the sensor is arranged on the OIS base; a plurality of coils are arranged on the OIS base, and OIS magnets corresponding to the coils are fixed in the camera. In order to solve the problem that the height of an existing motor is too high, the OIS magnet is installed on the bottommost bottom cover, the magnet and the coil can present ideal shapes in the plane direction, meanwhile, the effect of reducing the overall height is achieved, the height of the magnet can be greatly reduced, and therefore the height of the motor is reduced.

Description

technical field [0001] The invention belongs to the technical field of image equipment, and in particular relates to a substrate OIS magnetic mechanism and a camera module adopting the structure. Background technique [0002] VCM motor is a device that converts electrical energy into mechanical energy, and realizes linear and limited swing angle motion. A device that uses the interaction between the magnetic field from the permanent magnet steel and the magnetic poles in the magnetic field generated by the energized coil conductor to produce regular motion. Because the voice coil motor is a non-commutating power device, its positioning accuracy depends entirely on the feedback and control system, and has nothing to do with the voice coil motor itself. The emergence of the VCM motor has transformed the smartphone camera from fixed focus to automatic focus, and at the same time endowed small or miniature cameras with an anti-shake function. Its biggest role is that the camera...

AI Technical Summary

Problems solved by technology

Although both closed-loop motors and OIS motors have received great attention and popularity, OIS motors have resource constraints, lack of technology, complex manufacturing processes, difficult production, low yield, high cost and price, and lagging focus speed in terms of mass production and sales. , high power consumption and other issues

Among them, the main factor causing this problem is that most of the existing OIS motors adopt the lens anti-shake design, and this structure will inevitably lead to a separate electromagnetic anti-shake component that will occupy a large amount of internal space, and the complex structural design and motion control It is bound to bring greater obstacles to the assembly and manufacturing process, resulting in a lower yield rate and higher manufacturing costs

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