Automobile door driving mechanism

Abstract

The utility model discloses an automobile door driving mechanism which comprises an installation frame, a power assembly and an execution assembly, the installation frame is fixed in an automobile door, and the power assembly is installed on the installation frame and used for providing driving force. The execution assembly is arranged in the shell and connected with the power unit and the vehicle door. According to the automobile door driving mechanism, the overall structure of the automobile door driving mechanism is simplified, the lead screw drives the push rod to move to serve as an execution unit, and the synchronous belt, the first synchronous wheel and the second synchronous wheel serve as transmission units, so that the running stability and accuracy of the automobile door driving mechanism are guaranteed; the technical requirements of the whole vehicle door driving mechanism on the production process and assembly are reduced, so that the whole vehicle door driving mechanism is easier to produce, install and apply; and the installation layout mode of the vehicle door driving mechanism is optimized, the motor, the lead screw and the push rod are transversely and linearly arranged, the overall installation space of the vehicle door driving mechanism is effectively reduced, and installation of other devices is facilitated.

Description

Technical Field

[0001] The utility model relates to automobile driving technology, in particular to an automobile door driving mechanism. Background Art

[0002] With the development of automobile electrification and intelligence, the door system is gradually developing from manual door to automatic door system.

[0003] Most of the car doors on the existing market can be opened and closed electrically, and the door driving mechanism that realizes the above-mentioned electric door opening and closing function generally adopts the following structure: Most of the car doors on the existing market can be opened and closed electrically, and the door driving mechanism that realizes the above-mentioned electric door opening and closing function generally adopts the following structure: it includes a motor, a gear box, a transmission gear and a limit arm, wherein the gear box adopts a worm gear transmission or a helical gear transmission, and the limit arm can reciprocate and position under the coordinated action of the motor, gear box and transmission gear to realize the opening or closing action of the car door; however, using a worm gear or a helical gear as a transmission unit has a complex structure and is difficult to assemble, and has high design requirements for the worm gear or the helical gear. If the structure / size matching is slightly unsatisfactory, the stability and accuracy of the limit arm during movement will be unsatisfactory, and the operation reliability will be poor. Utility Model Content

[0004] In order to solve the above-mentioned defects of the prior art, the utility model provides a vehicle door driving mechanism, which has a simple structure, is easy to assemble, and has high operating stability.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solution: an automobile door driving mechanism, comprising a mounting frame fixed in the automobile door, and a housing is provided on the mounting frame;

[0006] A power assembly is mounted on the mounting frame and is used to provide driving force. The power assembly includes a motor and a gear box. The gear box is fixed to the motor. A first synchronous wheel, a second synchronous wheel and a synchronous belt are arranged in the gear box. The output shaft of the motor is coaxially driven with the first synchronous wheel. The synchronous belt passes around the first synchronous wheel and the second synchronous wheel.

[0007] An actuator component is arranged in the shell and connected to the power unit and the vehicle door. The actuator component includes a push rod, a screw rod, a slider and a nut. One end of the screw rod is coaxially arranged with the second synchronous wheel, and the other end of the screw rod is sleeved with a nut. The nut is threadedly matched with the screw rod. Both ends of the push rod are respectively provided with a hinged head and a connecting head. The hinged head is hinged to the top of the slider, and the connecting head is hinged to the vehicle body.

[0008] Preferably, a locking pin is passed through the connecting head, a fixing frame is sleeved on the locking pin, and the fixing frame is fixed to the vehicle body by fixing bolts.

[0009] Preferably, a damper is connected between the motor and the first synchronous wheel.

[0010] Preferably, a rubber plug is sleeved on one end of the screw rod facing the second synchronous wheel.

[0011] Preferably, a slider is fixed on the nut, the slider is matched with a guide groove, and the guide groove is arranged on the inner wall of the shell.

[0012] Preferably, the mounting frame is provided with a plurality of mounting bolts, and the mounting bolts are used to fix the mounting frame to the vehicle door.

[0013] In summary, the utility model has achieved the following technical effects:

[0014] 1. The automobile door drive mechanism of the utility model simplifies the overall structure of the door drive mechanism, adopts a screw rod to drive the push rod to move as an execution unit, and adopts a synchronous belt, a first synchronous wheel and a second synchronous wheel as a transmission unit, which not only ensures the stability and accuracy of the operation of the door drive mechanism, but also reduces the technical requirements of the entire door drive mechanism on the production process and assembly, making the door drive mechanism as a whole easier to produce, install and apply.

[0015] 2. The automobile door drive mechanism of the utility model optimizes the installation layout of the door drive mechanism, and the motor, screw rod and push rod are designed to be arranged in a horizontal linear manner, which effectively reduces the overall installation space of the door drive mechanism and is conducive to the installation of other devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the automobile door driving mechanism of the utility model;

[0017] Figure 2 It is a cross-sectional view of the automobile door driving mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the automobile door driving mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the automobile door driving mechanism of the utility model;

[0020] Figure 5 This is a structural schematic diagram of the damper of the automobile door drive mechanism of the utility model

[0021] Explanation of the reference numerals in the specification: 1. Motor; 2. Gearbox; 3. Mounting bracket; 4. Housing; 5. Mounting bolt; 6. Push rod; 7. Connector; 8. Screw rod; 9. Slider; 10. Guide groove; 11. Rubber plug; 12. First synchronous wheel; 13. Second synchronous wheel; 14. Synchronous belt; 15. Hinge joint; 16. Nut; 17. Damper. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] Embodiment 1:

[0029] like Figure 1 As shown in Figure 4, a vehicle door drive mechanism comprises a mounting frame 3, a power assembly and an actuator assembly. The mounting frame 3 is fixed in the vehicle door, and a housing 4 is provided on the mounting frame 3; the power assembly is mounted on the mounting frame 3 and is used to provide driving force. The power assembly comprises a motor 1 and a gear box 2. The gear box 2 is fixed to the motor 1. There are a first synchronous wheel 12, a second synchronous wheel 13 and a synchronous belt 14 in the gear box 2. The output shaft of the motor 1 is coaxially arranged with the first synchronous wheel 12, and the synchronous belt 14 passes around the first synchronous wheel 12 and the second synchronous wheel 13; the actuator assembly is arranged in the housing 4 and is connected to the power unit and the vehicle door. The actuator assembly comprises a push rod 6, a screw rod 8, a slider 9 and a nut 16. One end of the screw rod 8 is coaxially arranged with the second synchronous wheel 13, and the other end of the screw rod 8 is sleeved with a nut 16. The nut 16 is threadedly matched with the screw rod 8. Both ends of the push rod 6 are respectively provided with a hinged head 15 and a connector 7. The hinged head 15 is hinged to the top of the slider 9, and the connector 7 is hinged to the vehicle body.

[0030] The automobile door drive mechanism of the present embodiment simplifies the overall structure of the door drive mechanism, adopts the lead screw 8 to drive the push rod 6 to move as the execution unit, and adopts the synchronous belt 14, the first synchronous wheel 12 and the second synchronous wheel 13 as the transmission unit, which not only ensures the stability and accuracy of the operation of the door drive mechanism, but also reduces the technical requirements of the entire door drive mechanism on the production process and assembly, making the door drive mechanism as a whole easier to produce, install and use; and optimizes the installation layout of the door drive mechanism, and designs the motor 1, the lead screw 8 and the push rod 6 to be arranged in a horizontal linear manner, which effectively reduces the overall installation space of the door drive mechanism and is conducive to the installation of other components.

[0031] A locking pin is passed through the connector 7, a fixing frame is sleeved on the locking pin, and the fixing frame is fixed to the vehicle body by fixing bolts.

[0032] like Figure 5As shown, a damper 17 is connected between the motor 1 and the first synchronous wheel 12; wherein the damper 17 is optional, and the setting of the damper 17 can adjust the damping between the motor 1 and the first synchronous wheel 12, thereby ensuring that the door is effectively suspended.

[0033] A rubber plug 11 is sleeved on one end of the screw rod 8 facing the second synchronous wheel 13 ; the provision of the rubber plug 11 can prevent water and external dust from entering the area driven by the synchronous belt 14 from the screw rod 8 , thereby ensuring the normal use of the gear box 2 .

[0034] A slider 9 is fixed on the nut 16 . The slider 9 is matched with a guide groove 10 . The guide groove 10 is arranged on the inner wall of the housing 4 .

[0035] A plurality of mounting bolts 5 are provided on the mounting frame 3 , and the mounting bolts 5 are used to fix the mounting frame 3 to the vehicle door.

[0036] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A vehicle door driving mechanism, characterized in that: include A mounting frame, fixed in the door of the automobile, the mounting frame being provided with a housing; A power assembly is mounted on the mounting frame and is used to provide driving force. The power assembly includes a motor and a gear box. The gear box is fixed to the motor. A first synchronous wheel, a second synchronous wheel and a synchronous belt are arranged in the gear box. The output shaft of the motor is coaxially driven with the first synchronous wheel. The synchronous belt passes around the first synchronous wheel and the second synchronous wheel. An actuator component is arranged in the shell and connected to the power unit and the vehicle door. The actuator component includes a push rod, a screw rod, a slider and a nut. One end of the screw rod is coaxially arranged with the second synchronous wheel, and the other end of the screw rod is sleeved with a nut. The nut is threadedly matched with the screw rod. Both ends of the push rod are respectively provided with a hinged head and a connecting head. The hinged head is hinged to the top of the slider, and the connecting head is hinged to the vehicle body.

2. The automobile door driving mechanism according to claim 1, characterized in that: A locking pin is inserted through the connecting head, a fixing frame is sleeved on the locking pin, and the fixing frame is fixed to the vehicle body by fixing bolts.

3. The automobile door driving mechanism according to claim 1, characterized in that: A damper is connected between the motor and the first synchronous wheel.

4. The automobile door driving mechanism according to claim 1, characterized in that: A rubber plug is sleeved on one end of the screw rod facing the second synchronous wheel.

5. The automobile door driving mechanism according to claim 1, characterized in that: A slider is fixed on the nut, and the slider is matched with a guide groove, and the guide groove is arranged on the inner wall of the shell.

6. The automobile door driving mechanism according to claim 1, characterized in that: The mounting frame is provided with a plurality of mounting bolts, and the mounting bolts are used to fix the mounting frame to the vehicle door.

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