Three-axis OIS closed-loop motor and control method thereof
A motor and closed-loop technology, applied in the field of three-axis OIS closed-loop motor and its control, and lens drive device, can solve the problems of small electromagnetic thrust and long stabilization time of the voice coil motor, and achieve short stabilization time, fast speed and high focusing accuracy Effect
Pending Publication Date: 2021-09-17
辽宁中蓝光电科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a compact and reliable three-axis OIS closed-loop motor and its control method, as a high-end novel camera auto-focus device, used to solve the problem of traditional voice coil motors with small electromagnetic thrust and stable time Long question, it can push the large gravity lens module, has anti-shake function, position recognition function, and realizes the two-way conduction function of the sky surface and the bottom surface of the camera at the same time
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[0035] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0036] Such as Figure 1-Figure 9 As shown, a three-axis OIS closed-loop motor mainly includes a housing 1 , a base 10 , a carrier 6 , a control unit, an upper reed 7 and a bottom cover 2 .
[0037] Wherein, the base 10 has a built-in metal strip group I, and its upper surface has two C-shaped retaining walls 1001 arranged diagonally and two limiting bosses 1002 arranged in a cross shape with the two C-shaped retaining walls 1001 . One end of each metal strip I of the metal strip group I leads out from the bottom surface of the base 10 to form a PIN pin 3 for connecting and conducting with an external device, and the other end of a part of the metal strip I extends to a C-shaped retaining wall 1001 to be set in advance The other end of the remaining metal strip I extends to the pre-set top pad structure I of the C-shaped retaining wall 1001.
[0038]The carrier 6 i...
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The invention relates to a three-axis OIS closed-loop motor and a control method thereof, and the technical key points are that the three-axis OIS closed-loop motor comprises a housing; a base; a carrier; a control unit; and an upper reed. The control unit comprises four groups of clamping jaws and four groups of memory metal wires which are in one-to-one correspondence. As a high-end novel automatic focusing device for the camera, the three-axis OIS closed-loop motor is used for solving the problems that a traditional voice coil motor is small in electromagnetic thrust and long in stabilization time, can push a large-gravity lens module, has an anti-shaking function and a position recognition function, and meanwhile, achieves a two-way conduction function of the top face and the bottom face of the camera.
Description
technical field [0001] The invention relates to the technical field of voice coil motors, in particular to a three-axis OIS closed-loop motor and its control method, which is suitable for use as a lens in a mobile device that enables a lens module to automatically focus along the direction of the optical axis and move perpendicular to the direction of the optical axis drive unit. Background technique [0002] The traditional voice coil motor uses an electromagnetic scheme to drive the lens module, which mainly includes a base, a housing, a carrier, a coil, a magnet, a reed, etc. When the coil is powered on, it cooperates with the magnet to drive the carrier between the housing and the base. Move linearly along the optical axis in the formed space to adjust the focus of the lens module on the carrier. However, the thrust of this electromagnetic drive structure on the lens module is limited, it cannot push the high-gravity lens, and it takes a long time to stabilize, and it c...
Claims
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IPC IPC(8): H02K41/035H02K5/00H02K5/24H02K5/10H02P25/034G02B7/09G02B27/64G03B5/00G03B13/36
CPCH02K41/0356H02K5/00H02K5/24H02K5/10H02P25/034G02B7/09G03B5/00G03B13/36G02B27/646
Inventor 陈佳鑫高明
Owner 辽宁中蓝光电科技有限公司