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CN-121989769-A - Seat rotation driving device

CN121989769ACN 121989769 ACN121989769 ACN 121989769ACN-121989769-A

Abstract

The invention relates to the technical field of seat accessories, and discloses a seat rotation driving device which comprises a supporting seat, a rotation assembly, a gap eliminating assembly and a sliding coating, wherein the supporting seat is provided with a containing groove and a through hole, the rotation assembly comprises a movable disc, a driving turntable and a fixed disc which are arranged in the containing groove, the movable disc is rotatably connected with the fixed disc through the driving turntable, the fixed disc is fixed in the containing groove, the gap eliminating assembly comprises a first elastic structure and a second elastic structure, the first elastic structure is arranged between the movable disc and the containing groove and is configured to enable the movable disc to be kept in abutting connection with the side wall and/or the bottom wall of the containing groove when the seat is empty, the second elastic structure is arranged between the fixed disc and the movable disc and is configured to enable the movable disc to be kept in abutting connection with the fixed disc when the seat is empty and loaded, and can be compressed by the driven disc when the seat is loaded, and the sliding coating is arranged on the first elastic structure and/or the second elastic structure. The invention has the advantages of compact structure, stable operation, small abrasion and good compatibility.

Inventors

  • XU RAN

Assignees

  • 上海继峰座椅有限公司

Dates

Publication Date
20260508
Application Date
20260130

Claims (10)

  1. 1. A seat rotation driving device, characterized by comprising: A support base (100) having a receiving groove (110) recessed in an axial direction thereof, and a through hole (120) penetrating a bottom of the receiving groove (110); The rotating assembly comprises a movable disc (200), a driving turntable (300) and a fixed disc (400) which are coaxially arranged in the accommodating groove (110), wherein the movable disc (200) is rotatably connected with the fixed disc (400) through the driving turntable (300), the driving turntable (300) is configured to drive the movable disc (200) to rotate or lock relative to the fixed disc (400), and the fixed disc (400) is fixed in the accommodating groove (110); The clearance elimination assembly comprises a first elastic structure (500) and a second elastic structure (600), wherein the first elastic structure (500) is circumferentially arranged between the movable disc (200) and the accommodating groove (110) along the movable disc (200) and is configured to enable the movable disc (200) to be kept in abutting contact with the side wall and/or the bottom wall of the accommodating groove (110) when the seat is empty, the second elastic structure (600) is circumferentially arranged between the fixed disc (400) and the movable disc (200) along the movable disc (200) and is configured to enable the movable disc (200) to be kept in abutting contact with the fixed disc (400) when the seat is empty and is loaded, and is capable of being compressed by the movable disc (200) when the seat is loaded, and a sliding coating is arranged on the first elastic structure (500) and/or the second elastic structure (600).
  2. 2. The seat rotation driving device according to claim 1, wherein the first elastic structures (500) are arranged continuously or intermittently along the circumference of the movable disk (200), and when the first elastic structures (500) are arranged intermittently, the first elastic structures (500) are provided in plurality, and the plurality of first elastic structures (500) are uniformly distributed along the circumference of the movable disk (200).
  3. 3. The seat rotation driving device according to claim 1, wherein the first elastic structure (500) includes a first contact portion (510) and a second contact portion (520) fixedly connected, the first contact portion (510) is located between a surface of the movable plate (200) facing the accommodating groove (110) and a bottom wall of the accommodating groove (110), and the second contact portion (520) is located between a side wall of the movable plate (200) and a side wall of the accommodating groove (110).
  4. 4. A seat rotation driving device according to claim 3, wherein the first elastic structure (500) further comprises a third contact portion (530), the third contact portion (530) is fixedly connected with the first contact portion (510) or the second contact portion (520), and is matched with the first contact portion (510) and the second contact portion (520) to form a clamping groove (540), and the first elastic structure (500) can be detachably clamped on the movable disc (200) through the clamping groove (540).
  5. 5. A seat rotation driving device according to claim 1, wherein a plurality of the second elastic structures (600) are provided, the plurality of the second elastic structures (600) are uniformly distributed along the circumferential direction of the movable plate (200), a plurality of gaps are formed, and at least one of the gaps is used for passing a locking bolt (810).
  6. 6. The seat rotation driving device according to claim 5, wherein a plurality of the second elastic structures (600) are distributed in groups, a first gap (610) is formed between adjacent groups, and a second gap (620) is formed between two of the second elastic structures (600) in each group, wherein the second gap (620) is used for the locking bolt (810) to pass through.
  7. 7. A seat rotation driving device according to claim 6, characterized in that the first gap (610) corresponds to a central angle of 30 ° -45 ° and/or the second gap (620) corresponds to a central angle of 6 ° -15 °.
  8. 8. The seat rotation driving device according to claim 5, comprising at least one locking hole (700) and a latch locking mechanism (800), wherein the locking hole (700) is formed in the gap and penetrates through the fixed disc (400) in the axial direction, the latch locking mechanism (800) comprises a locking latch (810) and a latch driver (820), the locking latch (810) is inserted into the movable disc (200) in a lifting manner through the locking hole (700), the latch driver (820) is detachably arranged on one side, away from the movable disc (200), of the fixed disc (400), and an output end of the latch driver (820) is connected with the locking latch (810).
  9. 9. The seat rotation driving device according to claim 1, wherein the second elastic structure (600) comprises a first friction portion (601), a second friction portion (602) and a third friction portion (603) which are sequentially connected along the radial direction of the movable disk (200), the second friction portion (602) is higher than the first friction portion (601) and the third friction portion (603) along the axial direction of the movable disk (200), when the seat is empty, only the second friction portion (602) is in contact with the movable disk (200), and when the seat is loaded, the second friction portion (602) is pressed down to be flush with the first friction portion (601) and the third friction portion (603).
  10. 10. The seat rotation driving device according to claim 1, wherein the movable disk (200) is provided with a first mounting portion (220) protruding towards the direction away from the fixed disk (400), a first connecting portion (210) is arranged on the first mounting portion (220) in a penetrating manner, one end of the first connecting portion (210) penetrates through the through hole (120) to be used for being connected with a seat, a second mounting portion (410) protruding towards the direction away from the movable disk (200) is arranged on the fixed disk (400), a second connecting portion (420) is arranged on the second mounting portion (410) in a penetrating manner, and the second connecting portion (420) is used for being connected with a bearing body.

Description

Seat rotation driving device Technical Field The invention relates to the technical field of seat accessories, in particular to a seat rotation driving device. Background With the increase of the requirements of consumers on the flexibility of cabins and the rapid development of automatic driving technology, the electric rotary seat is increasingly widely applied in the field of automobiles. At present, the electric rotary seat mainly comprises a seat body and an electric rotary table for driving the seat body to rotate. The existing electric turntable is mostly dependent on mechanical structures such as bolts, clutch gears or toothed plates and the like to realize locking of rotation angles. However, the structure has the defects that firstly, the overall axial size is large, compact layout of the space in a vehicle is not facilitated, secondly, axial or radial shaking is easy to occur between the fixed disc and the movable disc due to the influence of assembly tolerance, riding comfort and structural stability are influenced, moreover, in the long-term use process, the friction balls can form indentations on the contact surface of the fixed disc and the movable disc, so that the rotating smoothness is reduced, the maintenance frequency and the cost are increased, in addition, the existing electric turntable generally only supports a single locking mode, the function requirements under different scenes are difficult to adapt, and the system compatibility is poor. Disclosure of Invention Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the rotary driving device of the seat, which has the advantages of compact structure, stable operation, small abrasion and good compatibility. The technical scheme adopted for solving the technical problem of the invention is to provide a seat rotation driving device, which comprises: the support seat is provided with an accommodating groove which is axially recessed along the support seat and a through hole which penetrates through the bottom of the accommodating groove; The rotating assembly comprises a movable disc, a driving turntable and a fixed disc, wherein the movable disc, the driving turntable and the fixed disc are coaxially arranged in the accommodating groove, the movable disc is rotatably connected with the fixed disc through the driving turntable, the driving turntable is configured to drive the movable disc to rotate or lock relative to the fixed disc, and the fixed disc is fixed in the accommodating groove; The clearance elimination assembly comprises a first elastic structure and a second elastic structure, wherein the first elastic structure is arranged between the movable disc and the accommodating groove along the circumferential direction of the movable disc and is configured to enable the movable disc to be kept in abutting contact with the side wall and/or the bottom wall of the accommodating groove when the seat is empty, the second elastic structure is arranged between the fixed disc and the movable disc along the circumferential direction of the movable disc and is configured to enable the movable disc to be kept in abutting contact with the fixed disc when the seat is empty and loaded and can be compressed by the movable disc when the seat is loaded, and a sliding coating is arranged on the first elastic structure and/or the second elastic structure. In the above-mentioned seat rotation driving device, the first elastic structure is arranged continuously or intermittently along the circumference of the movable disk, and when the first elastic structure is arranged intermittently, the first elastic structure is provided with a plurality of first elastic structures, and the plurality of first elastic structures are uniformly distributed along the circumference of the movable disk. In the above-mentioned seat rotation driving device, the first elastic structure includes a first contact portion and a second contact portion that are fixedly connected, the first contact portion is located between a surface of the movable disk facing the accommodating groove and a bottom wall of the accommodating groove, and the second contact portion is located between a side wall of the movable disk and a side wall of the accommodating groove. In the above-mentioned seat rotation driving device, the first elastic structure further includes a third contact portion, where the third contact portion is fixedly connected with the first contact portion or the second contact portion, and cooperates with the first contact portion and the second contact portion to form a clamping slot, and the first elastic structure can be detachably clamped on the movable disc through the clamping slot. In the above-mentioned seat rotation driving device, the second elastic structure is provided with a plurality of second elastic structures, the second elastic structures are uniformly distributed along the circumferential direction of th