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CN-224232111-U - Rotating structure and electronic device

CN224232111UCN 224232111 UCN224232111 UCN 224232111UCN-224232111-U

Abstract

The embodiment of the utility model discloses a rotating structure and electronic equipment. The rotating structure comprises a frame, a cam shaft, a piezomagnetic component and a magnet, wherein the cam shaft is provided with an arc-shaped surface with curvature change and is movably connected with the frame, and the piezomagnetic component and the magnet are arranged inside the frame. When the rotating structure works, a magnetic field is formed by the magnet, the pressing magnetic component is extruded by the arc-shaped surface with curvature change, and the extruded pressing magnetic component deforms and further changes the state of the magnetic field. The camshaft rotating state is reflected by the magnetic field change, the change of the magnetic field state is realized by arranging the piezomagnetic assembly, the whole structure is simplified, the occupied space is reduced, the magnetic field is less influenced by the outside, and the camshaft rotating state control device has better stability and accuracy.

Inventors

  • TANG YOUZHI
  • NIU YANXING
  • WU JIAN

Assignees

  • 立讯智造(浙江)有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (17)

  1. 1. A rotary structure, characterized in that the rotary structure comprises: A frame (1); The cam shaft (2) is movably connected with the frame (1), the cam shaft (2) comprises a driving part (21) and a transmission part (22), the driving part (21) is connected with the transmission part (22), the driving part (21) extends into the frame (1), the transmission part (22) is positioned outside the frame (1), at least one protrusion is arranged on the side surface of the driving part (21) in the direction perpendicular to the axial direction, and the maximum diameter of the driving part (21) is smaller than the diameter of the transmission part (22); the piezomagnetic assembly (3) is arranged inside the frame (1), and the side surface of the driving part (21) is in contact extrusion with the piezomagnetic assembly (3) so that the piezomagnetic assembly (3) deforms; The magnet (4) is arranged inside the frame (1), the piezomagnetic assembly (3) is positioned in the magnetic field of the magnet (4), and the magnetic field changes through the deformation of the piezomagnetic assembly (3).
  2. 2. The rotating structure according to claim 1, characterized in that the piezomagnetic assembly (3) comprises a piezomagnetic block (31) and a rigid block (32), the piezomagnetic block (31) being fixed in the frame (1), the rigid block (32) being fixed at the side of the piezomagnetic block (31) facing the driving part (21).
  3. 3. The rotating structure according to claim 1, characterized in that it further comprises a magnetic sensor (5) arranged in the frame, the magnetic sensor (5) being located in the magnetic field of the magnet (4).
  4. 4. The rotating structure according to claim 1, characterized in that a magnet slot (114) is provided in the frame (1), and the magnet (4) is provided in the magnet slot (114).
  5. 5. The rotating structure according to claim 1, the rotary structure is characterized by further comprising: The piezoelectric assembly (82) is arranged in the frame (1), the piezoelectric assembly (82) is arranged opposite to the axial end part of the driving part (21), and the driving part (21) moves to press the piezoelectric assembly (82) to deform.
  6. 6. The rotary structure according to claim 5, wherein the piezoelectric assembly (82) includes a piezoelectric element (821) and a piezoelectric circuit board (822), the piezoelectric element (821) is electrically connected to the piezoelectric circuit board (822), the piezoelectric circuit board (822) is mounted in the frame (1), and the piezoelectric element (821) is disposed on a side of the piezoelectric circuit board (822) near an axial end portion of the driving portion (21).
  7. 7. The rotary structure according to claim 6, wherein an end face shape of the piezoelectric element (821) is a spherical surface protruding toward an axial end of the driving portion (21), the piezoelectric element (821) corresponding to an axial end position of the driving portion (21).
  8. 8. The rotary structure according to claim 5, further comprising a second elastic member (81), the second elastic member (81) being arranged between the piezoelectric assembly (82) and the driving portion (21), the second elastic member (81) being connected within the frame (1).
  9. 9. The rotary structure according to claim 8, wherein a pressing block (23) is protruded at one end of the driving portion (21) near the piezoelectric element (82), a deformation portion (811) protruded toward one side of the pressing block (23) is formed on the second elastic member (81), and the deformation portion (811) corresponds to the pressing block (23) in position.
  10. 10. The rotating structure according to claim 1, further comprising a first elastic member (93), wherein the first elastic member (93) connects the transmission portion (22) and the first frame (91), a through hole (912) is formed in the first frame (91), an inner diameter of the through hole (912) is the same as an outer diameter of the transmission portion (22), and the transmission portion (22) is movably disposed in the through hole (912) and extends to an outer side of the through hole (912).
  11. 11. The rotating structure according to claim 10, wherein a ring groove (221) is formed in a side surface of the transmission portion (22), the ring groove (221) is located on one side of the first frame (91) close to the driving portion (21), the first elastic member (93) includes an annular portion (931) and two connection portions (932), and the annular portion (931) is rotatably disposed in the ring groove (221).
  12. 12. The rotating structure according to claim 11, wherein two limiting brackets (911) are provided on the first frame (91), and the two connecting portions (932) are respectively connected to the two limiting brackets (911).
  13. 13. The rotary structure according to claim 8, wherein the frame (1) includes a first frame (11) and a second frame (12) which are disposed opposite to each other, the first frame (11) includes a housing (111) and an extension cylinder (112) which are communicated with each other internally, the extension cylinder (112) is disposed on a side of the housing (111) away from the second frame (12), a part of the transmission part (22) is rotatably disposed in the extension cylinder (112), the piezomagnetic assembly (3) is disposed in the housing (111), and the piezoelectric assembly (82) is disposed in the second frame (12).
  14. 14. The rotary structure according to claim 13, wherein a shaft hole (115) is formed in a side, connected to the extension tube (112), of the housing (111), the shaft hole (115) communicates the extension tube (112) with the housing (111), the driving portion (21) penetrates through the shaft hole (115), and an inner diameter of the shaft hole (115) is smaller than an outer diameter of the transmission portion (22) and larger than an outer diameter of the driving portion (21).
  15. 15. The rotating structure according to claim 13, wherein a magnet groove (114) is formed in the housing (111), an opening is formed in a side of the magnet groove (114) facing the second frame (12), a positioning portion (123) is arranged on a side of the second frame (12) facing the housing (111) in an extending manner, and the positioning portion (123) is arranged in the magnet groove (114) in an extending manner and is pressed above the magnet (4).
  16. 16. The rotary structure according to claim 14, wherein the housing (111) is provided with a through groove (113), the through groove (113) is communicated with the shaft hole (115) to form an open structure, the side surface of the extension cylinder (112) is provided with an opening (116), and the dimension of the opening (116) in the axial direction perpendicular to the extension cylinder (112) is smaller than the diameter of the extension cylinder (112).
  17. 17. An electronic device, the electronic device comprising: The machine frame comprises a first machine frame (91) and a second machine frame (92), wherein the first machine frame (91) is connected with the second machine frame (92), and the first machine frame (91) is provided with a through hole (912); The rotary structure according to any one of claims 1 to 16, which is mounted in a space formed by the first frame (91) and the second frame (92), the transmission portion (22) extending from the through hole (912) to the outside of the first frame (91); and the control structure is arranged in the second rack (92), and is electrically connected with the rotating structure.

Description

Rotating structure and electronic device Technical Field The utility model relates to the technical field of electronic equipment, in particular to a rotating structure and electronic equipment. Background The rotating structure is usually located at the side of the watch frame, and a part of the rotating structure extends to the outside of the frame, so that a user can perform functions such as time setting through pressing and rotating operations. In intelligent wrist-watch, revolution mechanic can also strengthen user experience, and the user of being convenient for carries out the fine operation, compares directly to operate on the small screen, uses revolution mechanic to realize more accurate control. In order to better perform timely and accurate feedback on the operation of a user, the existing rotating structure is generally designed by adopting a mechanical transmission principle, an electronic induction principle or a photoelectric induction principle. The rotating structures implemented using the above principles are generally complex and susceptible to environmental effects. For example, the mechanical transmission needs gear matching transmission, the capacitive element or the resistive element needed by the electronic sensing principle is easily affected by the environment, and the photoelectric sensing principle needs to ensure that the laser light path is not blocked. Therefore, the existing rotating structure often occupies a large space, and the adjusting precision is unstable. Disclosure of utility model In view of the above, the present utility model aims to provide a rotating structure and an electronic device, which simplify the structure, reduce the space occupation, and improve the stability and accuracy of adjustment. In a first aspect, an embodiment of the present utility model provides a rotating structure, including: A frame; The cam shaft is movably connected with the frame and comprises a driving part and a transmission part, the driving part is connected with the transmission part, the driving part extends into the frame, the transmission part is positioned outside the frame, at least one protrusion is arranged on the side surface of the driving part in the direction perpendicular to the axial direction, and the maximum diameter of the driving part is smaller than the diameter of the transmission part; The piezoelectric magnetic assembly is arranged in the frame, and the side surface of the driving part is in contact with the piezoelectric magnetic assembly to be extruded so that the piezoelectric magnetic assembly is deformed; The magnet is arranged inside the frame, the piezomagnetic assembly is positioned in the magnetic field of the magnet, and the magnetic field changes through the deformation of the piezomagnetic assembly. Optionally, the piezomagnetic assembly includes a piezomagnetic block and a rigid block, the piezomagnetic block is fixed in the frame, and the rigid block is fixed at one side of the piezomagnetic block facing the driving part. Optionally, the rotating structure further comprises a magnetic sensor disposed within the frame, the magnetic sensor being located within the magnetic field of the magnet. Optionally, a magnet groove is formed in the frame, and the magnet is arranged in the magnet groove. Optionally, the rotating structure further comprises: The piezoelectric assembly is arranged in the frame, the piezoelectric assembly and the axial end part of the driving part are arranged opposite to each other, and the driving part moves to press the piezoelectric assembly to deform. Optionally, the piezoelectric component includes a piezoelectric element and a piezoelectric circuit board, the piezoelectric element is electrically connected with the piezoelectric circuit board, the piezoelectric circuit board is installed in the frame, and the piezoelectric element is disposed on a side of the piezoelectric circuit board, which is close to an axial end portion of the driving portion. Optionally, the end surface of the piezoelectric element is a spherical surface protruding toward the axial end of the driving part, and the piezoelectric element corresponds to the axial end of the driving part. Optionally, the rotating structure further includes a second elastic member, where the second elastic member is disposed between the piezoelectric component and the driving portion, and the second elastic member is connected in the frame. Optionally, a pressing block is protruded at one end of the driving part, which is close to the piezoelectric component, and a deformation part protruded towards one side of the pressing block is formed on the second elastic piece, and the deformation part corresponds to the pressing block in position. Optionally, the rotating structure further includes a first elastic element, the first elastic element connects the transmission portion and the first frame, a through hole is formed in the first frame, the inner diameter of the throu