Unlock instant, AI-driven research and patent intelligence for your innovation.

Closed-loop control structure of camera driving motor

A driving motor and closed-loop control technology, applied in the field of optical focusing systems, can solve the problems of long camera focusing time, reduced user experience, and the motor does not monitor movement conditions, so as to shorten the focusing time, improve the user experience, and improve the focusing speed. Effect

Inactive Publication Date: 2017-07-18
北京美拓斯电子有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing camera drive motor generally adopts an open-loop control structure. The motor itself has no ability to monitor the movement and needs to control the displacement through the input current. The monitoring system is an external chip, which makes the camera focus for a long time and reduces the user experience.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Closed-loop control structure of camera driving motor
  • Closed-loop control structure of camera driving motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see figure 1 with 2 As shown, a closed-loop control structure of a camera driving motor includes a housing, an elastic sheet, a carrier 5, a coil 6 wound on the carrier, a first magnetic block 7 disposed inside the housing, and a fixedly disposed inside the housing. The Hall control module 8 and the second magnet 9 arranged on the carrier corresponding to the position of the Hall control module,

[0020] The carrier is suspended in the housing and connected to the housing through the elastic sheet,

[0021] When the coil is energized, the first magnetic block cooperates with the coil to generate a force to move the coil along the focusing axis.

[0022] In this embodiment, the housing includes a magnetic shield 1 and a base 2, and the magnetic shield is covered on the base to form a hollow cavity.

[0023] The elastic sheet includes an upper elastic sheet 3 and a lower elastic sheet 4, and two ends of the carrier are respectively connected to the upper elastic sheet ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a closed-loop control structure of a camera driving motor. The closed-loop control structure includes a housing, an elastic sheet, a carrier, a coil winding on the carrier, a first magnet arranged on the inner side of the housing, a Hall control module fixedly arranged on the inner side of the housing and a second magnet corresponding to the position of the Hall control module and arranged on the carrier. The carrier is arranged in the housing in a suspending manner and is connected with the housing through the elastic sheet. When the coil is electrified, the first magnet fits with the coil so as to generate a force enabling the coil to move in the direction of a focusing axis. The invention reduces focusing time, improves focusing speed and improves user experience.

Description

technical field [0001] The invention relates to an optical focusing system, in particular to a closed-loop control structure of a camera driving motor. Background technique [0002] With the development of wireless communication technology, mobile phones have gradually become an indispensable part of people's lives. Moreover, more and more functions are integrated into the mobile phone, such as camera function, video function, MP3 function and so on. With the higher and higher pixels of mobile phone cameras, mobile phone cameras have gradually become the mainstream. In order for the mobile phone camera to work normally, the mobile phone camera drive motor is essential. [0003] The existing camera drive motor generally adopts an open-loop control structure. The motor itself does not have the ability to monitor the movement, and needs to control the displacement through the input current. The monitoring system is an external chip, which makes the camera focus time long and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G03B13/34
CPCG03B13/34
Inventor 王辉罗俊
Owner 北京美拓斯电子有限公司