Lens driving device, base and circuit board thereof
A technology of lens driving device and circuit board, which is applied in the fields of lens driving device, base and circuit board, can solve the problems of easy to find misalignment, difficult processing, waste of man-hours, etc., and achieve the effects of stable shape, convenient processing, and stable magnetic field
Pending Publication Date: 2022-05-20
HENAN HAOZE ELECTRONICS
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Problems solved by technology
However, misalignment of the multilayer coil is easy to be found during use, and it is not easy to align the multilayer coil along the axial direction during the manufacturing process of the multilayer metal sheet, which is difficult to process and wastes man-hours
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[0038] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but only to illustrate the essence of the technical solutions of the present invention.
[0039] In the following description, for the purposes of explaining the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of these specific details. In other instances, well-known devices, structures and techniques associated with the present application may not have been shown or described in detail in order to avoid unnecessarily...
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The invention discloses a lens driving device, a base and a circuit board. The circuit board comprises a bottom plate, a plurality of first positioning pieces, multiple layers of metal sheets and multiple layers of coils, the bottom plate is provided with a center hole, the first positioning pieces are connected to the top face of the bottom plate, the multiple layers of metal sheets are sequentially stacked on the top face of the bottom plate in the axis direction of the center hole, and the multiple layers of coils are installed on the multiple layers of metal sheets respectively. Each layer of coil comprises a plurality of coils, each layer of coil is installed on the corresponding layer of metal sheet, every two adjacent layers of coils are electrically connected in the axis direction, and each coil is arranged around at least one first positioning piece. In the manufacturing process of the circuit board, in the process of sequentially connecting and stacking the multiple layers of metal sheets to the top surface of the bottom plate, the multiple coils can be annularly sleeved on the corresponding first positioning pieces firstly, so that the metal sheets are smoothly stacked to the top surface of the base, and the multiple first positioning pieces provide a positioning effect for the multiple layers of metal sheets; therefore, the shapes of the plurality of coils can be kept stable so as to accurately control the movement displacement of the lens.
Description
technical field [0001] The invention relates to the field of optical driving, in particular to a lens driving device, a base and a circuit board. Background technique [0002] With the development of technology, many electronic devices now have the function of taking photos or recording videos. The use of these electronic devices is becoming more and more common, and they are developing towards the direction of convenience and thinner design, so as to provide users with more choices. [0003] In practice, in order to adapt to a variety of scenes to take pictures, the lens needs to be continuously adjusted. In the prior art, a lens driving device is generally used to drive the lens to move in a three-dimensional direction, that is, along the direction of the optical axis and two mutually perpendicular to the optical axis. direction. Specifically, the lens driving device includes a housing, a frame, a carrier, an upper reed, a lower reed and a base, wherein the housing and t...
Claims
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IPC IPC(8): G02B7/10G02B7/105G03B13/34H02K33/18
CPCG02B7/10G02B7/105G03B13/34H02K33/18
Inventor 彭坤林聪刘富泉吕新科其他发明人请求不公开姓名
Owner HENAN HAOZE ELECTRONICS