Vehicle door driving mechanism

Abstract

The utility model discloses a car door driving mechanism which comprises an installation frame, a motor and a shell are arranged at the two ends of the installation frame respectively, a power gear and a driven gear are arranged in the installation frame, the power gear is arranged on an output shaft of the motor in a sleeved mode, the driven gear is meshed with the driven gear, and a containing groove is formed in the shell. According to the automobile door driving mechanism, a gear box is removed, the driving assembly is directly driven to work through the power gear and the driven gear, the overall structure of the automobile door driving mechanism is simplified, the structure is simple and compact, and the automobile door driving mechanism is convenient to use and high in practicability. And the device is easy to assemble, small in occupied space and suitable for installation positions with narrow spaces such as automobile doors.

Description

Technical Field

[0001] The utility model relates to a vehicle door driving technology, in particular to a vehicle 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 current market can be opened and closed electrically, and the door drive mechanism that realizes the above-mentioned electric door opening and closing function generally adopts the following structure: including a motor, a gear box, a transmission gear and a limit arm, wherein the limit arm can move back and forth and position under the coordinated action of the motor, the gear box and the transmission gear to realize the opening or closing action of the car door; however, the gear box as a transmission unit has a complex structure and occupies a large space, resulting in a large installation space required for the entire drive mechanism, which is difficult to adapt to the increasingly compact installation space in the car door. Utility Model Content

[0004] In order to solve the defects of the prior art mentioned above, the utility model provides a door drive mechanism which has a simple and compact structure, is easy to assemble, occupies a small space, and is suitable for installation in narrow spaces such as automobile doors.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a vehicle door drive mechanism, including a mounting frame, a motor and a housing are respectively provided at both ends of the mounting frame, a power gear and a driven gear are provided in the mounting frame, the power gear is sleeved on the motor output shaft, the power gear is meshed with the driven gear, a receiving groove is provided in the housing, a driving component connected to the driven gear is provided in the receiving groove, the driving component drives the connecting plate to move, and the connecting plate is fixed to the vehicle body.

[0006] Preferably, the motor and the housing are both arranged on the same side of the mounting frame.

[0007] Preferably, a reduction gear is provided between the power gear and the driven gear, and the reduction gear is arranged in the mounting frame and meshes with both the power gear and the driven gear.

[0008] Preferably, the number of teeth on the power gear is smaller than the number of teeth on the reduction gear, and the number of teeth on the reduction gear is smaller than the number of teeth on the driven gear.

[0009] Preferably, the power gear, driven gear and reduction gear are all helical gears.

[0010] Preferably, the driving assembly includes a screw sleeve and a ejector rod. The screw sleeve is coaxially disposed through the center of the driven gear. The part of the ejector rod extending into the receiving groove is provided with an external thread. The ejector rod passes through the screw sleeve and is in threaded cooperation with the screw sleeve through the external thread. The end of the ejector rod extending out of the receiving groove is hinged to the connecting plate.

[0011] Preferably, a waterproof sleeve is sleeved on the end of the ejector rod extending out of the receiving groove, and the end of the waterproof sleeve is fixedly sealed with the mounting bracket.

[0012] Preferably, a limiting plate is provided at the end of the ejector rod extending into the receiving groove. The side wall of the limiting plate is attached to the groove wall of the receiving groove, and the limiting plate is in sliding cooperation with the receiving groove.

[0013] Preferably, the driving assembly includes a push rod, a lead screw and a slider. Chute are provided on both sides of the receiving groove. Both sides of the slider are slidably engaged in the chute. The top of the slider is sleeved on the lead screw and is in threaded cooperation with the lead screw. The lead screw is coaxially and fixedly arranged with the center of the driven gear. The bottom of the slider is hinged to the push rod, and one end of the push rod relative to the slider is hinged to the connecting plate.

[0014] Preferably, a plurality of fixing bolts are provided on the mounting bracket, and the fixing bolts are used to fix the mounting bracket to the vehicle door.

[0015] In summary, the present utility model has achieved the following technical effects:

[0016] The door driving mechanism of the present utility model removes the gearbox and directly drives the driving assembly to work through the driving gear and the driven gear, simplifies the overall structure of the door driving mechanism, has a simple and compact structure, is easy to assemble, and occupies a small space, and is suitable for installation positions with small spaces such as automobile doors. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the first embodiment of the door driving mechanism of the present utility model;

[0018] Figure 2 is an internal structural schematic diagram of the first embodiment of the door driving mechanism of the present utility model;

[0019] Figure 3 is a cross-sectional view of the first embodiment of the door driving mechanism of the present utility model;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the second embodiment of the door driving mechanism of the present utility model;

[0021] Figure 5 is an internal structural schematic diagram of the second embodiment of the door driving mechanism of the present utility model;

[0022] Figure 6It is a cross-sectional view of the second embodiment of the door driving mechanism of the present utility model;

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Mounting bracket; 2. Motor; 3. Housing; 4. Fixing bolt; 5. Connecting plate; 6. Driving gear; 7. Reduction gear; 8. Driven gear; 9. Push rod; 10. Screw sleeve; 11. Waterproof sleeve; 12. Limiting plate; 13. Lead screw; 14. Slide block; 15. Chute; 16. Push bar. Detailed implementation manners

[0024] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This specific embodiment is only an interpretation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the Patent Law.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly defined and limited, the terms "mount", "connect", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] 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.

[0030] Embodiment 1:

[0031] like Figures 1-3 As shown, a door drive mechanism includes a mounting frame 1, with a motor 2 and a housing 3 at both ends of the mounting frame 1 respectively, a power gear 6 and a driven gear 8 are arranged inside the mounting frame 1, the power gear 6 is sleeved on the output shaft of the motor 2, the power gear 6 is meshed with the driven gear 8, a receiving groove is arranged in the housing 3, a driving component connected to the driven gear 8 is arranged in the receiving groove, the driving component drives the connecting plate 5 to move, and the connecting plate 5 is fixed to the vehicle body.

[0032] The motor 2 and the housing 3 are both arranged on the same side of the mounting frame 1; the arrangement on the same side can further shorten the length of the entire driving mechanism and save space.

[0033] A reduction gear 7 is provided between the power gear 6 and the driven gear 8. The reduction gear 7 is arranged in the mounting frame 1 and meshes with both the power gear 6 and the driven gear 8. The number of teeth of the power gear 6 is smaller than that of the reduction gear 7, and the number of teeth of the reduction gear 7 is smaller than that of the driven gear 8. The power gear 6, the driven gear 8 and the reduction gear 7 are all helical gears. By adding the reduction gear 7 and increasing the number of teeth of the power gear 6, the driven gear 8 and the reduction gear 7 in sequence, the deceleration function of the gearbox can be realized.

[0034] The driving assembly includes a screw sleeve 10 and a push rod 9. The screw sleeve 10 is coaxially penetrated through the center of the driven gear 8. The part of the push rod 9 extending into the receiving groove is provided with an external thread. The push rod 9 passes through the screw sleeve 10 and is threadedly matched with the screw sleeve 10 through the external thread. The end of the push rod 9 extending out of the receiving groove is hinged to the connecting plate 5.

[0035] The end of the push rod 9 extending out of the receiving groove is covered with a waterproof cover 11, and the end of the waterproof cover 11 is fixedly sealed with the mounting frame 1; the waterproof cover 11 is provided to prevent rainwater, dust and impurities from entering the mounting frame 1 and the housing 3.

[0036] A limit plate 12 is provided at the end of the push rod 9 extending into the receiving groove, and the side wall of the limit plate 12 is in contact with the wall of the receiving groove, and the limit plate 12 slides with the receiving groove; the setting of the limit plate 12 can play a guiding role to prevent the push rod 9 from tilting and being unable to retract.

[0037] A plurality of fixing bolts 4 are provided on the mounting bracket 1, and the fixing bolts 4 are used to fix the mounting bracket 1 to the vehicle door.

[0038] Embodiment 2:

[0039] Compared with Embodiment 1, the difference of this embodiment is that, as Figures 4-6 shown, the driving assembly includes a push rod 16, a lead screw 13 and a slider 14. Chute 15 is provided on both sides of the accommodating groove. Both sides of the slider 14 are slidably engaged in the chute 15. The top of the slider 14 is sleeved on the lead screw 13 and is in threaded cooperation with the lead screw 13. The lead screw 13 is fixedly arranged coaxially with the center of the driven gear 8. The bottom of the slider 14 is hinged to the push rod 16, and one end of the push rod 16 relative to the slider 14 is hinged to the connecting plate 5.

[0040] For the door driving mechanism of the present utility model, the gearbox is removed, and the driving assembly is directly driven to work by the driving gear 6 and the driven gear 8, which simplifies the overall structure of the door driving mechanism, has a simple and compact structure, is easy to assemble, and occupies less space, and is suitable for installation positions with small spaces such as automobile doors.

[0041] The above description is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model are all within the scope of the technical solution of the present utility model.

Claims

1. A door drive mechanism, characterized in that: It includes a mounting frame, with a motor and a shell at both ends of the mounting frame respectively, a power gear and a driven gear are arranged inside the mounting frame, the power gear is sleeved on the motor output shaft, the power gear is meshed with the driven gear, a receiving groove is arranged inside the shell, a driving component connected to the driven gear is arranged in the receiving groove, the driving component drives the connecting plate to move, and the connecting plate is fixed to the vehicle body.

2. A vehicle door driving mechanism according to claim 1, characterized in that: The motor and the housing are both arranged on the same side of the mounting frame.

3. A vehicle door driving mechanism according to claim 1, characterized in that: A reduction gear is arranged between the power gear and the driven gear. The reduction gear is arranged in the mounting frame and meshes with both the power gear and the driven gear.

4. A vehicle door driving mechanism according to claim 3, characterized in that: The number of teeth of the power gear is smaller than the number of teeth of the reduction gear, and the number of teeth of the reduction gear is smaller than the number of teeth of the driven gear.

5. A vehicle door driving mechanism according to claim 3, characterized in that: The power gear, driven gear and reduction gear are all helical gears.

6. A vehicle door driving mechanism according to claim 1, characterized in that: The driving assembly includes a screw sleeve and a push rod. The screw sleeve is coaxially inserted into the center of the driven gear. The part of the push rod extending into the accommodating groove is provided with an external thread. The push rod passes through the screw sleeve and cooperates with the screw sleeve thread through the external thread. The end of the push rod extending out of the accommodating groove is hinged to the connecting plate.

7. A vehicle door driving mechanism according to claim 6, characterized in that: The end of the push rod extending out of the accommodating groove is sleeved with a waterproof sleeve, and the end of the waterproof sleeve is fixedly sealed with the mounting frame.

8. A vehicle door driving mechanism according to claim 6, characterized in that: A limiting plate is arranged at the end of the push rod extending into the receiving groove, the side wall of the limiting plate is in contact with the groove wall of the receiving groove, and the limiting plate is in sliding cooperation with the receiving groove.

9. The vehicle door driving mechanism according to claim 1, characterized in that: The driving assembly includes a push rod, a lead screw and a slider. Slide grooves are provided on both sides of the accommodating groove. Both sides of the slider are slidably fitted in the slide grooves. The top of the slider is sleeved on the lead screw and cooperates with the lead screw thread. The lead screw is coaxially fixed with the center of the driven gear. The bottom of the slider is hinged to the push rod, and the push rod is hinged to the connecting plate relative to one end of the slider.

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

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