Novel voice coil motor housing

Abstract

A novel voice coil motor housing comprises a yoke and a lower cover. The yoke is composed of a rectangular top plate and four side plates. The rectangular top plate is provided with a first through hole. The four side plates are formed through integral extending of the rectangular top plate along the four sides and downwards bending. The middle part of the rectangular top plate is connected with aplurality of folding parts. Each folding part is formed through integral extending of the rectangular top plate correspondingly with the first through hole and downwards bending. Furthermore the folding parts are uniformly distributed along the circle center of the first through hole. A lower cover is assembled to a lower opening of the yoke. The lower cover comprises a flat cover body. The middle part of the flat cover body is provided with a second through hole which is coaxially arranged. The periphery of the upper surface of the lower cover is recessed, thereby forming a rectangular annular fixing trough. The yoke is inserted into the annular fixing trough through bottom of the four side plates. Furthermore the inside part of each side plate abuts against the sidewall of the annular fixing trough. Furthermore glue connection is utilized at the combining part between each side plate and the annular fixing trough.

Description

technical field [0001] The invention relates to a voice coil motor of a miniature camera, in particular to a novel voice coil motor shell. The miniature camera can be assembled and applied to thin electronic products such as mobile phones, tablet computers, and smart watches. Background technique [0002] In the current design of a voice coil motor (VCM) for a camera, its structure usually includes a carrier, which is positioned in a casing composed of a yoke and a lower cover of the motor. The carrier is provided with upper and lower through holes for assembling the lens of the camera; wherein, the outer periphery of the seat body is provided with a coil, and the yoke of the motor is provided with a magnet corresponding to the coil, so that when the coil is energized, the carrier can Electromagnetic induction produces vertical displacement, thereby realizing zooming and focusing of the camera; the upper or / and lower end faces of the carrier are also positioned with shrapne...

AI Technical Summary

Problems solved by technology

The problem existing in this prior art is that the combined part of the yoke 1 and the lower cover 2 is fixed by means of external four-sided sealing, and the reserved plastic area on the lower cover 2 is small, which will affect the subsequent molding process of the customer enterprise. The size of the gluing position during group assembly is easy to cause degumming, and it is also easy to cause glue overflow at the bottom of the shell, making the dispensing uneven, and adversely affecting the appearance of the voice coil motor product

[0004] In addition, with the vigorous development of smart phones and other markets, the demand for voice coil motors is increasing, and customers have higher and higher requirements for the characteristics of voice coil motors. In order to meet the development of thinner and lighter products, existing voice coil motors It is difficult to make its structure larger, so improving the characteristics of the motor and increasing the magnetic force of the motor without increasing the size of the product has always been a problem for the industry to seek breakthroughs

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