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CN-224200471-U - Ball head transmission type electric side door opening driving device structure

CN224200471UCN 224200471 UCN224200471 UCN 224200471UCN-224200471-U

Abstract

The utility model belongs to the technical field of vehicle side-opening drivers, and particularly relates to a ball-head transmission type electric side-opening driving device structure. The automobile door lock is characterized in that the push rod assembly is provided with a ball socket which is matched with the joint ball of the screw rod assembly, a spring which is used for eliminating the fit clearance between the joint ball and the ball socket is arranged, the ball socket can hold the joint ball tightly and continuously provide damping force through the spring, further, the stability of connection between the driver push rod assembly and the screw rod nut in the automobile door side opening process is greatly improved, the screw rod nut is provided with a guide structure which is matched with the guide shell, the telescopic action of the push rod assembly relative to the automobile door can be ensured to be stably carried out through the matching of a plurality of guide surfaces of the outer wall of the screw rod nut and the inner wall of the guide shell, and the reasonable arrangement of the driving assembly, the transmission assembly, the shell assembly, the automobile door installation assembly and the execution assembly is compact in overall structure, stable and reliable, the shaking condition when the automobile door hovers can be effectively avoided, the user experience is improved, and the automobile door lock is easy to popularize.

Inventors

  • CHEN NING
  • SU JIN
  • ZHAO MING

Assignees

  • 湖北中航精机科技有限公司武汉中航精冲技术分公司

Dates

Publication Date
20260505
Application Date
20250331

Claims (8)

  1. 1. A ball head transmission type electric side door opening driving device structure is characterized by comprising a driving assembly (100), a transmission assembly (200), a shell assembly (300), a door mounting assembly (400) and an executing assembly (500), wherein the shell assembly (300) comprises a guide shell (330), the guide shell (330) is fixedly connected with an automobile door through the door mounting assembly (400), the executing assembly (500) comprises a screw rod assembly (510) and a push rod assembly (520), the screw rod assembly (510) comprises a screw rod (513) which is rotatably arranged in an upper cavity of the guide shell (330), a screw rod nut (511) is arranged on the screw rod (513) through a thread connecting sleeve, a guide structure which is matched with the inner wall of the upper cavity of the guide shell (330) is arranged on the outer wall of the screw rod nut (511), a joint ball (512) is fixedly connected to the bottom of the screw rod nut (511), one end of the push rod assembly (520) comprises a push rod body (521) which is slidably arranged in a lower cavity of the guide shell (330), an automobile (522) which is connected with the joint ball (512), the other end of the push rod assembly extends out of the automobile door and is hinged with the door mounting bracket (530), the driving assembly (100) is connected with the screw rod (513) through the transmission assembly (200) to drive the screw rod (513) to rotate, and the screw rod nut (511) drives the push rod (521) to extend and retract relative to the vehicle door, so that the vehicle door can be opened and closed relative to the vehicle body electrically.
  2. 2. The structure of claim 1, wherein the ball socket (522) is wrapped outside the joint ball (512), a spring (523) is abutted between the joint ball (512) and the ball socket (522), and the spring (523) is installed in the ball socket (522) through a cover plate (524).
  3. 3. The ball head transmission type electric side door opening driving device structure according to claim 1, wherein the guiding structure comprises a first guiding surface (5111) positioned at the top of a screw nut (511), a second guiding surface (5112) and a third guiding surface (5113) which are respectively positioned at two sides of the screw nut (511), a fourth guiding surface (331) which is matched with the first guiding surface (5111) is arranged at the top of the upper cavity inner wall of the guiding shell (330), and a fifth guiding surface (332) and a sixth guiding surface (333) which are respectively matched with the second guiding surface (5112) and the third guiding surface (5113) are respectively arranged at two sides of the upper cavity inner wall of the guiding shell (330).
  4. 4. The structure of claim 1, wherein one end of the guide housing (330) is fixedly connected to the housing of the transmission assembly (200) through a first end housing (310), and the other end is fixedly connected to a third end housing (420) of the door mounting assembly (400) through a second end housing (410).
  5. 5. The structure of claim 4, wherein bearings (320) are mounted at both ends of the screw (513) in the first and second end housings (310, 410).
  6. 6. The structure of claim 1, wherein the driving assembly (100) comprises a driving motor, the driving assembly (200) comprises a driving gear box, an output end of the driving motor is connected with an input end of the driving gear box, and an output end of the driving gear box is connected with the screw rod (513).
  7. 7. The ball-joint transmission type electric side-opening driving device structure according to claim 4, wherein the third end housing (420) of the door mounting assembly (400) is fixedly connected with the automobile door through a door mounting bolt (430).
  8. 8. The structure of claim 1, wherein the end of the push rod (521) extending out of the door of the automobile is hinged to the body mounting bracket (530) by a hinge rivet (540).

Description

Ball head transmission type electric side door opening driving device structure Technical Field The utility model belongs to the technical field of vehicle side-opening drivers, and particularly relates to a ball-head transmission type electric side-opening driving device structure. Background At present, in the electric side door opening driver of mass production in the market, the push rod is one of the mainstream side door opening drivers, namely one end of the push rod is fixedly connected with the vehicle body, the other end of the push rod is hinged with the screw rod nut, the screw rod is rotationally arranged in the mechanism shell, screw transmission is realized through driving the screw rod, and the screw rod nut and the hinged push rod are driven to transversely displace to realize the opening and closing of the vehicle door. In the push rod type side door opening driver, a joint bearing structure is adopted when the push rod is connected with the screw rod nut to realize the swing of the push rod on the horizontal plane in the process of opening and closing the vehicle door and compensate the axial error of a hinge rotating shaft during the installation of the vehicle door. The prior art joint bearing structure is usually designed at one end of a push rod connected with a screw nut, a threaded hole is arranged in a corresponding installation groove of the screw nut, and the screw nut are connected through a bolt. However, as the joint bearing structure on the push rod is in small interference fit between the metal inner ball socket and the plastic rotating ball, the plastic rotating ball is worn when the electric side door driver works for a long time, so that the shaking condition occurs when the automobile door hovers, and the whole mechanism is arranged in the automobile door, the bolt connection structure on the screw rod nut is difficult to design and relax due to the limitation of space size, and the risk of falling out of the bolt is caused. Disclosure of utility model The utility model aims to solve the technical problem of providing the ball head transmission type electric side door opening driving device structure which is compact in structure and reliable in use, and can greatly improve the stability of transmission of a screw nut and a push rod of a driving device in the side door opening process of a vehicle, effectively avoid shaking conditions when a vehicle door hovers and improve user experience. The technical scheme adopted by the utility model for solving the technical problems is as follows: The bulb transmission type electric side door opening driving device mainly comprises a driving structure driving assembly 100, a transmission assembly 200, a shell assembly 300, a vehicle door mounting assembly 400 and an executing assembly 500; The shell assembly 300 comprises a guide shell 330, the guide shell 330 is fixedly connected with an automobile door through an automobile door mounting assembly 400, the execution assembly 500 comprises a screw rod assembly 510 and a push rod assembly 520, the screw rod assembly 510 comprises a screw rod 513 rotatably arranged in the upper cavity of the guide shell 330, a screw rod nut 511 is arranged on the screw rod 513 through a threaded connecting sleeve, a guide structure matched with the inner wall of the upper cavity of the guide shell 330 is arranged on the outer wall of the screw rod nut 511, a joint ball 512 is fixedly connected to the bottom of the screw rod nut 511, the push rod assembly 520 comprises a push rod 521 slidably arranged in the lower cavity of the guide shell 330, one end of the push rod 521 is provided with a ball socket 522 connected with the joint ball 512, the other end of the push rod 521 is hinged with an automobile body mounting bracket 530 after extending out of the automobile door, the automobile body mounting bracket 530 is fixedly mounted on the automobile body, and the drive assembly 100 is connected with the screw rod 513 through a transmission assembly 200 to drive the screw rod 513 to rotate, and the push rod 521 is driven to extend and retract relative to the automobile door through the screw rod nut 511 so as to realize relative electric opening and closing of the automobile body. Further, the ball socket 522 is covered on the outer side of the joint ball 512, and a spring 523 is abutted between the joint ball 512 and the ball socket 522, and the spring 523 is mounted in the ball socket 522 through a cover plate 524. Further, the guiding structure comprises a first guiding surface 5111 located at the top of the screw nut 511, a second guiding surface 5112 and a third guiding surface 5113 located at two sides of the screw nut 511, a fourth guiding surface 331 adapted to the first guiding surface 5111 is provided at the top of the inner wall of the upper cavity of the guiding housing 330, and a fifth guiding surface 332 and a sixth guiding surface 333 adapted to the second guiding surface 5112 and the thir