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CN-224218461-U - Motor, anti-shake motion assembly, camera module and electronic equipment

CN224218461UCN 224218461 UCN224218461 UCN 224218461UCN-224218461-U

Abstract

The application provides a motor, an anti-shake motion assembly, a camera shooting module and electronic equipment, wherein the motor comprises a first rolling element, a first supporting element and a second supporting element, the first rolling element is arranged between the first supporting element and the second supporting element and is respectively contacted with the first supporting element and the second supporting element, contact surfaces on the two supporting elements are respectively a first contact surface and a second contact surface, the flatness of the first contact surface and/or the second contact surface is less than or equal to 0.015mm, the roughness is less than or equal to 0.013 mu m, and the Vickers hardness of corresponding materials is greater than or equal to 250HV. The motor, the anti-shake motion assembly, the camera module and the electronic equipment provided by the application can reduce the friction force between the rolling piece and the supporting piece and improve the reliability of the structure.

Inventors

  • QIN SHIXIN
  • WANG WEI
  • ZHENG KE

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20250418

Claims (15)

  1. 1. A motor, comprising: a first support (211) and a second support (221), wherein the first support (211) is opposite to the second support (221), and the second support (221) can move relatively relative to the first support (211); the first rolling element (231), first rolling element (231) set up in between first support piece (211) and second support piece (221), and respectively with first support piece (211) and second support piece (221) contact, first support piece (211) include first contact surface, first rolling element (231) bear on the first contact surface, second support piece (221) include the second contact surface, second support piece (221) bear on first rolling element (231) through the second contact surface, first contact surface with the second contact surface sets up relatively, first contact surface and/or the second contact surface's flatness is less than or equal to 0.015mm, first contact surface and/or second contact surface roughness is less than or equal to 0.013 mu m, first contact surface and/or second contact surface's material hardness is greater than or equal to 250HV.
  2. 2. The motor of claim 1, wherein the elastic modulus of the material of the first contact surface and/or the second contact surface is greater than or equal to 205GPa.
  3. 3. The motor according to claim 1 or 2, characterized in that the first support (211) comprises a first groove (2111), the first groove (2111) comprising a first bottom wall (2111A) and a first side wall (2111B), the first side wall (2111B) being looped around the periphery of the first bottom wall (2111A), the first contact surface being located on the first bottom wall (2111A); The first support (211) further comprises a third contact surface on the first side wall (2111B), the flatness of the third contact surface being less than or equal to 0.015mm, the roughness of the third contact surface being less than or equal to 0.013 μm, the vickers hardness of the material of the third contact surface being greater than or equal to 250HV.
  4. 4. A motor according to claim 3, wherein the elastic modulus of the material of the third contact surface is greater than or equal to 205GPa.
  5. 5. The motor according to claim 1 or 2, wherein the second support (221) comprises a second groove (2211), the second groove (2211) comprising a second bottom wall (2211A) and a second side wall (2211B), the second side wall (2211B) being looped around the periphery of the second bottom wall (2211A), the second contact surface being located on the second bottom wall (2211A); The second support (221) further comprises a fourth contact surface on the second side wall (2211B), the fourth contact surface having a flatness of less than or equal to 0.015mm, a roughness of less than or equal to 0.013 μm, and a material of the fourth contact surface having a vickers hardness of greater than or equal to 250HV.
  6. 6. The motor of claim 5, wherein the material of the fourth contact surface has an elastic modulus of greater than or equal to 205GPa.
  7. 7. The motor according to claim 1 or 2, characterized in that it comprises a stator assembly comprising the first support (211) and a first injection-molded part (212), the first support (211) being embedded in the first injection-molded part (212).
  8. 8. The motor according to claim 7, characterized in that it comprises a mover assembly comprising a first movable assembly (53, 82), said first movable assembly (53, 82) being translatable or rotatable with respect to said stator assembly, said first movable assembly (53, 82) comprising said second support (221) and a second injection molding (222), said second support (221) being embedded in said second injection molding (222).
  9. 9. The motor according to claim 8, wherein the second support (221) includes a first support portion (2212), a second support portion (2213), and a first connection portion (2214), the first connection portion (2214) is disposed between the first support portion (2212) and the second support portion (2213), and the first support portion (2212) and the second support portion (2213) are located on different faces, the second contact face being located on the first support portion (2212); the rotor assembly further comprises a second movable assembly (83), the second movable assembly (83) can rotate relative to the first movable assembly (82), the second movable assembly (83) comprises a third support (241), and the third support (241) is opposite to the second support (2213); The motor further comprises a second rolling element (232), wherein the second rolling element (232) is arranged between the second supporting part (2213) and the third supporting element (241) and is respectively contacted with the second supporting part (2213) and the third supporting element (241).
  10. 10. The motor according to claim 9, wherein the second support (2213) comprises a fifth contact surface on which the second rolling element (232) is carried; -the third support (241) comprises a sixth contact surface, through which the third support (241) is carried on the second rolling member (232); The flatness of the fifth contact surface and/or the sixth contact surface is less than or equal to 0.015mm, the roughness of the fifth contact surface and/or the sixth contact surface is less than or equal to 0.013 μm, and the vickers hardness of the material of the fifth contact surface and/or the sixth contact surface is greater than or equal to 250HV.
  11. 11. The motor of claim 10, wherein the modulus of elasticity of the material of the fifth contact surface and/or the sixth contact surface is greater than or equal to 205GPa.
  12. 12. The motor according to any one of claims 9 to 11, characterized in that the material of the first support (211), the second support (221) and the third support (241) is any one of 316 stainless steel, 430 stainless steel.
  13. 13. An anti-shake exercise assembly comprising a motor as claimed in any one of claims 1 to 12.
  14. 14. A camera module comprising the anti-shake motion assembly of claim 13.
  15. 15. An electronic device comprising the camera module of claim 14.

Description

Motor, anti-shake motion assembly, camera module and electronic equipment Technical Field The application relates to the technical field of electronic equipment, in particular to a motor, an anti-shake motion assembly, a camera module and electronic equipment. Background Optical anti-shake (optical image stabilization, OIS) functions are a common means for improving the quality of photographing, and when optical anti-shake is performed, the optical element is usually driven by a driving device such as a motor to perform translation or rotation so as to perform shake compensation. Early cameras mainly used reed suspension system to hang, and when rotor subassembly and stator subassembly took place relative motion, mainly by reed and suspension line as drive structure. With the development of the camera industry, the bottom surface of the image sensor is bigger and bigger, the lens is heavier and heavier, the reliability problem exists in the suspension reed system, and the ball and sliding shaft motor are becoming mainstream gradually. The ball and the sliding shaft motor are connected with the rotor assembly and the stator assembly through the ball or the sliding shaft, friction force is generated between the ball or the sliding shaft and the contact surface in the movement process, if the friction force is too large, the driving force demand is increased, and the high-precision control of the camera motor control algorithm is not facilitated. For example, abrupt friction is likely to occur when the balls or the slide shaft roll to the edge position of the receiving groove, resulting in an increase in friction. In addition, when the camera module collides, the ball or the sliding shaft can easily smash the supporting surface of the camera module out of the pit. Disclosure of utility model The application provides a motor, an anti-shake motion assembly, a camera module and electronic equipment, which can reduce friction force between a rolling piece and a supporting structure and improve structural reliability. In a first aspect, a first supporting piece is provided and is a metal piece, a second supporting piece is a metal piece and is arranged opposite to the first supporting piece, the second supporting piece can move relatively to the first supporting piece, a first rolling piece is arranged between the first supporting piece and the second supporting piece and is respectively contacted with the first supporting piece and the second supporting piece, the first supporting piece comprises a first contact surface, the first rolling piece is borne on the first contact surface, the second supporting piece comprises a second contact surface, the second supporting piece is borne on the first rolling piece through the second contact surface, the first contact surface is arranged opposite to the second contact surface, the flatness of the first contact surface and/or the second contact surface is smaller than or equal to 0.015mm, the first contact surface and/or the second contact surface is/are smaller than or equal to 0.013, and the roughness of the first contact surface and/or the second contact surface is smaller than or equal to 250 mu m or equal to the hardness of a first material. In the embodiment provided by the application, the first rolling element is supported between the first supporting element and the second supporting element, the flatness of the first contact surface and/or the second contact surface is less than or equal to 0.015mm, and the roughness is less than or equal to 0.013 mu m, so that the friction force between the first rolling element and the first supporting element and/or the second supporting element can be reduced, the driving force required in the process of relative movement between the first supporting element and the second supporting element can be reduced, the problem that the friction force is suddenly changed after the first rolling element slides to the edge position can be relieved, and the driving precision of a motor can be improved. The Vickers hardness of the material of the first contact surface and/or the second contact surface is greater than or equal to 250HV, so that the structural reliability of the motor can be improved, and the first rolling element can smash the first supporting element and/or the second supporting element out of the pit or the scratch when the motor falls or collides, thereby influencing the fluency of the motor during subsequent movement. With reference to the first aspect, in certain implementations of the first aspect, an elastic modulus of a material of the first contact surface and/or the second contact surface is greater than or equal to 205GPa. In the embodiment provided by the application, the elastic modulus of the material of the first contact surface and/or the second contact surface is greater than or equal to 205GPa, so that the structural reliability of the motor can be further improved. With reference to the first aspect, in