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WO-2026092365-A1 - DRIVING MODULE, OPTICAL ASSEMBLY, CAMERA MODULE AND ELECTRONIC DEVICE

WO2026092365A1WO 2026092365 A1WO2026092365 A1WO 2026092365A1WO-2026092365-A1

Abstract

The embodiments of the present application belong to the technical field of camera image stabilization. Provided are a driving module (101), an optical assembly (3), a camera module (100) and an electronic device (1000). The driving module (101) comprises a housing component (10), a moving component (30), a transmission board (50), a rolling component (80) and a driving component (70), wherein the moving component (30) is configured to carry an image sensing unit (103); the transmission board (50) comprises a first rigid board portion (51) and a flexible circuit board portion (53), which are fixed and electrically connected to each other, the first rigid board portion (51) being fixed to the inner wall of the housing component (10), the first rigid board portion (51) and the moving component (30) being stacked, the flexible circuit board portion (53) being arranged around the moving component (30) in the circumferential direction of the moving component (30), and the flexible circuit board portion (53) being electrically connected to the moving component (30); the driving component (70) is configured to drive the moving component (30) to perform an image stabilization motion; and in the direction in which the first rigid board portion (51) and the moving component (30) are stacked, the moving component (30) is in rolling contact with the housing component (10) by means of the rolling component (80), and the rolling component (80) is configured to support the moving component (30) in a first direction.

Inventors

  • DING, Zhaoyuan
  • WANG, PENG
  • LI, JIANLIN
  • LIU, BIN
  • ZHENG, Ke

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260507
Application Date
20251027
Priority Date
20241030

Claims (16)

  1. A drive module (101) is characterized in that the drive module (101) includes a housing component (10), a moving component (30), a transmission plate (50), a rolling component (80), and a drive component (70), wherein the transmission plate (50), the drive component (70), and the moving component (30) are all housed within the housing component (10); The moving part (30) is used to carry the image sensing unit (103); The transmission plate (50) includes a first rigid plate portion (51) and a flexible circuit board portion (53) that are fixed and electrically connected to each other. The first rigid plate portion (51) is fixed to the inner wall of the housing component (10). The first rigid plate portion (51) and the moving component (30) are stacked together along a first direction. The flexible circuit board portion (53) is arranged around the moving component (30) along a portion of the circumference of the moving component (30). The flexible circuit board portion (53) is electrically connected to the moving component (30). The driving component (70) is used to drive the moving component (30) to move relative to the housing component (10); The rolling member (80) is disposed in one of the moving member (30) and the housing member (10), and in the first direction, the moving member (30) and the housing member (10) are in rolling contact through the rolling member (80).
  2. According to claim 1, the drive module (101) is characterized in that the rolling component (80) includes a ball group (81), and the moving component (30) is provided with a receiving groove (331) on the side away from the first hard plate portion (51), and the receiving groove (331) contains the ball group (81).
  3. According to claim 2, the drive module (101) is characterized in that the moving component (30) includes a moving frame (31) and a guide bracket (33) mounted on the moving frame (31), wherein the moving frame (31) is located between the first rigid plate portion (51) and the guide bracket (33) in the first direction; The guide bracket (33) has the receiving groove (331) on the side opposite to the motion frame (31) in the first direction.
  4. According to claim 3, the drive module (101) is characterized in that one of the motion frame (31) and the housing component (10) includes a magnetic material, and the other of the motion frame (31) and the housing component (10) includes a magnetically conductive material, the magnetic material and the magnetically conductive material are magnetically attracted in the first direction, the guide bracket (33) is located between the magnetically conductive material and the magnetic material in the first direction, the rolling component (80) is in rolling contact with the guide bracket (33) in the first direction, and the rolling component (80) is in rolling contact with the housing component (10) in the first direction.
  5. According to claim 4, the drive module (101) is characterized in that the moving part (30) further includes a magnetic suction element (35); The motion frame (31) has an assembly groove (3155) on the side facing the guide bracket (33), and the magnetic suction member (35) is housed in the assembly groove (3155). The guide bracket (33) is located on the side of the motion frame (31) away from the first rigid plate portion (51) in the first direction and covers the mounting groove (3155), the magnetic suction member (35) includes the magnetic material, and the housing component (10) includes the magnetic conductive material.
  6. According to claim 5, the drive module (101) is characterized in that the housing component (10) includes a first cover (11), a second cover (12) and a magnetic conductor (15), the first cover (11) and the second cover (12) are used to form a receiving space, the moving component (30), at least part of the transmission plate (50), the drive component (70) and the magnetic conductor (15) are all received in the receiving space, the first rigid plate portion (51) is located between the first cover (11) and the moving frame (31) in the first direction, the first rigid plate portion (51) is fixed to the first cover (11), the magnetic conductor (15) is located between the guide bracket (33) and the second cover (12) in the first direction, the magnetic conductor (15) covers the receiving groove (331), and the magnetic conductor (15) includes the magnetic material.
  7. The drive module (101) according to any one of claims 2-6 is characterized in that the moving component (30) includes a first corner region (3151), a second corner region (3152), a third corner region (3153), and a fourth corner region (3154), wherein the first corner region (3151) and the second corner region (3152) are arranged along a second direction, the second corner region (3152) and the third corner region (3153) are arranged along a third direction, the first corner region (3151) and the third corner region (3153) are arranged along one diagonal of the moving component (30), and the second corner region (3152) and the fourth corner region (3154) are arranged along the other diagonal of the moving component (30); the second direction is perpendicular to the first direction, the second direction is perpendicular to the third direction, and the third direction is perpendicular to the first direction; The first corner region (3151), the second corner region (3152) and the third corner region (3153) are all formed with the receiving groove (331).
  8. The drive module (101) according to any one of claims 1-7 is characterized in that the moving part (30) is provided with a first electrical connection terminal (3135); The transmission plate (50) further includes a second rigid plate portion (55), which is fixed and electrically connected to the flexible circuit board portion (53) in the circumference of the moving component (30). The second rigid plate portion (55) is provided with a second electrical connection terminal (551), and the first electrical connection terminal (3135) is electrically connected to the second electrical connection terminal (551).
  9. According to claim 8, the drive module (101) is characterized in that the moving component (30) includes a top surface (311) and a side surface connected together, and the first rigid plate portion (51) and the top surface (311) are stacked together along the first direction; The first electrical connection terminal (3135) is disposed on the side surface, and the flexible circuit board portion (53) and the second rigid board portion (55) are disposed around the side surface. The thickness direction of the flexible circuit board portion (53) is perpendicular to the first direction.
  10. According to claim 9, the drive module (101) is characterized in that the transmission board (50) further includes a third rigid plate portion (57), and the side includes a first side (3131), a second side (3132), a third side (3133) and a fourth side (3134) connected together. The first side (3131) and the third side (3133) are disposed opposite each other in the second direction, the second side (3132) and the fourth side (3134) are disposed opposite each other in the third direction, the first side (3131) is provided with the first electrical connection terminal (3135), the third side (3133) is provided with the third electrical connection terminal (3136), the third rigid plate portion (57) is provided with the fourth electrical connection terminal (571), the second direction is perpendicular to the first direction, the second direction is perpendicular to the third direction, and the third direction is perpendicular to the first direction; The flexible circuit board portion (53) includes a first portion (531), a second portion (533), and a third portion (535) sequentially connected. At least one of the first portion (531) and the second portion (533) is fixed and electrically connected to the first rigid board portion (51). The first portion (531) is located between the inner wall of the housing component (10) and the second side surface (3132), and the second portion (533) is located between the inner wall of the housing component (10) and the first side surface (3131). The third part (535) is located between the inner wall of the housing component (10) and the third side surface (3133). The second rigid plate part (55) and the second part (533) are connected to the moving part (30) at one end circumferentially away from the first part (531). The third rigid plate part (57) and the third part (535) are connected to the moving part (30) at one end circumferentially away from the first part (531). The third electrical connection terminal (3136) is electrically connected to the fourth electrical connection terminal (571).
  11. The drive module (101) according to any one of claims 1-10 is characterized in that, The driving component (70) includes a first magnetic element (7111), a second magnetic element (7131), a first coil (7113), a second coil (7114), a third coil (7132), and a fourth coil (7134). The first magnetic element (7111) and the second magnetic element (7131) are disposed on the top surface (311) of the moving component (30). The first magnetic element (7111) is disposed along a second direction, and the second magnetic element (7131) is disposed along a third direction. The first coil (7113), the second coil (7114), the third coil (7132), and the fourth coil (7134) are all fixed to the side of the first rigid plate (51) facing the top surface (311). The first coil (7113) and the second coil (7114) are arranged along the second direction and are face-to-face with the first magnetic element (7111). The third coil (7132) and the fourth coil (7134) are arranged along the second direction and are face-to-face with the second magnetic element (7131). Any two of the first direction, the second direction, and the third direction are perpendicular to each other.
  12. According to claim 11, the drive module (101) is characterized in that the top surface (311) is further provided with a first mounting recess (3115) and a second mounting recess (3116); The first magnetic element (7111) is housed in the first mounting recess (3115); The second magnetic element (7131) is housed in the second mounting recess (3116).
  13. The driving module (101) according to any one of claims 1-12 is characterized in that the driving component (70) further includes a displacement sensor (73) and a driving chip (75), wherein the displacement sensor (73) is used to collect jitter data of the image sensing unit (103) and feed it back to the driving chip (75); The driving chip (75) is used to calculate the required compensation value based on the received jitter data, and control the direction and magnitude of the current in each of the first coil (7113), the second coil (7114), the third coil (7132), and the fourth coil (7134) according to the compensation value, so as to control the moving part (30) to drive the image sensing unit (103) to perform anti-shake movement.
  14. An optical component (3) is characterized in that the optical component (3) includes an image sensing unit (103) and a driving module (101) according to any one of claims 1-13, wherein the moving part (30) of the driving module (101) carries the image sensing unit (103).
  15. A camera module (100) is characterized in that the camera module (100) further includes a lens (2) and an optical component (3) according to claim 13, wherein the lens (2) component is located on the light-incident side of the image sensing unit (103).
  16. An electronic device (1000) is characterized in that the electronic device (1000) includes a device housing (200) and a camera module (100) according to claim 15, the camera module (100) being mounted on the device housing (200).

Description

Drive modules, optical components, camera modules and electronic devices This application claims priority to Chinese patent application filed on October 30, 2024, with application number 202411539359.6 and entitled "Drive Module, Optical Component, Camera Module and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of camera technology, and in particular to a driving module, optical component, camera module and electronic device. Background Technology When electronic devices with camera functions (such as mobile phones and tablets) take photos, slight shaking often results in blurry, ghosted, or indistinct images. For example, when a person holds an electronic device, there is unavoidable physiological shaking. These irregular, involuntary shaking or vibrations cause blurry images and a poor user experience. Image stabilization can be achieved by moving the image sensor unit, which can improve the quality of photos or videos to some extent. One image stabilization solution uses a multi-wire flexible metal cantilever to support the moving parts, including the image sensor, and transmit electrical signals. However, the flexible metal cantilever has high rigidity, making it difficult to apply sufficient thrust when the moving parts undergo large strokes and large angles. This results in insufficient response speed during large-stroke and large-angle image stabilization, affecting the stabilization effect. Summary of the Invention This application provides a drive module, optical components, camera module, and electronic device that can improve image stabilization. In a first aspect, this application provides a driving module, which includes a housing component, a moving component, a transmission plate, a rolling component, and a driving component. At least a portion of the transmission plate, the driving component, and the moving component are housed within the housing component. The moving component carries an image sensing unit. The transmission plate includes a first rigid plate portion and a flexible circuit board portion fixedly and electrically connected to each other. The first rigid plate portion is fixed to the inner wall of the housing component. The first rigid plate portion and the moving component are stacked along a first direction, and the flexible circuit board portion is arranged circumferentially around the moving component. The flexible circuit board portion is electrically connected to the moving component. The driving component drives the moving component to move relative to the housing component. The rolling component is disposed in one of the moving component and the housing component. In the first direction, the side of the moving component away from the first rigid plate portion makes rolling contact with the inner wall of the housing component facing the first rigid plate portion via the rolling component. The drive module provided in this application includes a transmission board comprising a first rigid board portion and a flexible circuit board portion connected together. Since the first rigid board portion uses a rigid circuit board, the rigid circuit board has higher structural strength and is less prone to deformation compared to the flexible circuit board. This can improve the support strength of the transmission board for the drive component, so that the position of the drive component on the transmission board does not change due to the pulling of the flexible circuit board portion, which is beneficial to improving the positional stability of the drive component on the transmission board. Furthermore, the flexible circuit board is electrically connected between the first rigid board and the moving component. External signals are transmitted to the moving component via the first rigid board and the flexible circuit board, and then from the moving component to the image sensing unit. Compared to a flexible metal cantilever, the flexible circuit board has lower stiffness, lighter weight, and greater strength, requiring less driving force. Additionally, the image sensing unit has a smaller mass than the lens, resulting in less driving force required for optical image stabilization compared to moving the lens. This improves the response speed of the optical components during long-stroke, wide-angle stabilization movements and enhances high-frequency stabilization performance. The flexible circuit board is also suitable for heavier moving components. Furthermore, this application utilizes a rolling component to support the moving component in the first direction while providing no support in the direction perpendicular to the first direction. This allows for rotation around the first direction and planar movement in the direction perpendicular to the first direction, meaning the drive module is a three-axis drive module. Compared to support solutions such as suspension cables in the optical a