Luxshare Precision Industry has been granted a patent for a voice coil motor that includes a housing assembly, a base assembly, a zoom lens holder, a first electromagnetic drive assembly, a focusing lens holder, and a second electromagnetic drive assembly. The motor allows for independent movement of the zoom lens holder and the focusing lens holder in a front-back direction. The electromagnetic drive assemblies consist of magnetic steel portions and coils, with alternating N and S poles. GlobalData’s report on Luxshare Precision Industry gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Luxshare Precision Industry, Data center cooling systems was a key innovation area identified from patents. Luxshare Precision Industry's grant share as of September 2023 was 64%. Grant share is based on the ratio of number of grants to total number of patents.
Voice coil motor with independent electromagnetic drive assemblies
A recently granted patent (Publication Number: US11774701B2) describes a voice coil motor with various components and features. The motor includes a housing assembly and a base assembly that form an accommodation space. Within this space, there is a zoom lens holder and a focusing lens holder, both of which can move along the front-back direction.
The motor also includes two independent electromagnetic drive assemblies. The first assembly consists of a first magnetic steel portion and a first coil, while the second assembly consists of a second magnetic steel portion and a second coil. These assemblies are configured to drive the zoom lens holder and the focusing lens holder, respectively.
The magnetic steel portions in each assembly have alternating N and S poles in the front-back direction.
Additionally, the motor incorporates rolling assemblies to facilitate the movement of the lens holders. There are two possible structures for these assemblies. In one structure, the zoom lens holder has a first groove, and either the base assembly or the housing assembly has a corresponding second groove. A rolling assembly is rollably disposed in the space formed by these grooves, allowing the zoom lens holder to move relative to the base or housing assembly. In the other structure, the focusing lens holder has a third groove, and either the base assembly or the housing assembly has a corresponding fourth groove. Another rolling assembly is rollably disposed in the space formed by these grooves, enabling the movement of the focusing lens holder.
The patent also mentions additional features such as a coil mounting plate, a plurality of rolling assemblies with specific ball configurations, a support frame with grooves, and ball holding mechanisms with arc grooves.
Furthermore, the motor includes an adsorption member embedded in the base assembly, which exhibits a magnetic attraction force with at least one of the electromagnetic drive assemblies.
Overall, this granted patent presents a voice coil motor design with various components and features that enable the movement of zoom and focusing lens holders along the front-back direction.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
