WO2021036287A1

WO2021036287A1 - Automobile side door electric opening and closing device and automobile with the device

Info

Publication number: WO2021036287A1
Application number: PCT/CN2020/085453
Authority: WO
Inventors: 杨来福; 叶长山; 邹书洋; 何佩磊
Original assignee: 昆山睿唯景汽车科技有限公司
Priority date: 2019-08-28
Filing date: 2020-04-18
Publication date: 2021-03-04
Also published as: CN210798622U; AU2020101050A4

Abstract

Provided are an automobile side door electric opening and closing device and an automobile, the opening and closing device comprises a gear box (1), a lead screw (2), a nut (3) and a driving unit (4), the driving unit (4) is connected with the gear box (1), the periphery of the lead screw (2) is sleeved with the nut (3), one end of the lead screw (2) is fixedly connected with a vehicle body, the other end of the lead screw (2) penetrates through the gear box (1), and the nut (3) on the periphery of the lead screw (2) is located in the gear box (1); a gear transmission mechanism is arranged in the gear box (1), the driving unit (4) is connected with the nut (3) through the gear transmission mechanism; the gear box (1) and the driving unit (4) are both installed in a vehicle door; the driving unit (4) drives the nut (3) to rotate through the gear transmission mechanism so as to drive the lead screw (2) to do front-back reciprocating motion, and electric opening or closing of the automobile side door is achieved.

Description

Electric opening and closing device for side door of automobile and automobile with the same

Technical field

The utility model belongs to the key technical field of automobile side doors, and particularly relates to an electric opening and closing device for automobile side doors.

Background technique

With the continuous development and progress of the automobile industry, the utilization rate and demand of automobiles continue to increase. Therefore, the convenience and safety of automobiles are more and more concerned by everyone. Most of the traditional car side doors can only be opened and closed manually, which is less convenient to use. Most of the mechanisms that can realize the automatic opening and closing of the side door are relatively complicated in structure, occupy a large space, and need to make major changes to the original car side door, which makes the versatility low and restricts the development of the automatic door of the car.

Utility model content

The main technical problem solved by the utility model is to provide an automobile side door electric opening and closing device and an automobile with the device, which realizes electric opening and closing of the automobile side door, and can realize hovering at any position of the side door, and has a compact structure and a relatively high Small size.

In order to solve the above technical problems, a technical solution adopted by the present utility model is:

An electric opening and closing device for a side door of an automobile, comprising a gear box, a screw rod, a nut, and a driving unit, the driving unit is connected to the gear box, the nut is sleeved on the outer circumference of the screw rod, and one end of the screw rod is fixedly connected to the vehicle body , The other end penetrates the gear box and makes the nut on the outer periphery of the gear box located in the gear box; the gear box is provided with a gear gear transmission mechanism, and the drive unit is connected to the nut through the gear transmission mechanism; the gear box and the drive unit They are all installed in the side door, and the driving unit drives the nut to rotate through a gear transmission mechanism to drive the screw rod to reciprocate back and forth, thereby pushing the side door to open or close relative to the vehicle body.

Further, the gear transmission mechanism includes a gear, the gear has a central hole, the gear is sleeved on the outer circumference of the nut and an engagement structure is provided between the nut, and the gear drives the nut to rotate to drive the screw rod Moving forward and backward, the occlusal structure enables the screw rod to swing in a circumferential direction when moving forward and backward.

It can be further stated that the occlusal structure is specifically: one of the gear and the nut is provided with a protrusion, the other is provided with a groove, the end of the protrusion is located in the groove, and the When the gear rotates, the groove is clamped by the protrusion to drive the nut to rotate.

Furthermore, it is also possible that the engagement structure includes an elastic body, the elastic body is arranged between the gear and the nut, and the gear drives the nut to rotate through the elastic body.

Furthermore, it is also possible that the biting structure includes a plurality of springs, and the plurality of springs are evenly arranged along the circumferential direction of the central hole of the gear and arranged between the gear and the nut.

Furthermore, the driving gear is a spur gear, a worm gear or a helical gear.

Furthermore, the driving unit includes a driving motor.

Furthermore, a clutch is provided between the drive unit and the gear box.

Furthermore, the nut is a ball nut or a cylindrical nut.

The utility model also provides an automobile, which includes the electric opening and closing device for the side door of the automobile as described above.

The beneficial effects of the utility model:

The driving unit of the utility model drives the nut to rotate through a gear transmission mechanism to drive the screw rod to reciprocate back and forth, replacing the traditional stopper, and realize the electric opening or closing of the side door of the automobile; the biting structure enables the screw rod to move forward and backward. The utility model has a compact overall structure and a small space occupation, and is suitable for most automobiles.

Description of the drawings

Figure 1 is the first structural diagram of the utility model (worm gear/helical gear worm drive);

Figure 2 is the second structural diagram of the utility model (worm gear/helical gear worm drive);

Figure 3 is a combined diagram of the screw, nut and worm gear of the utility model (worm gear/helical gear worm drive);

Figure 4 is an enlarged view of A1 in Figure 3 (worm gear/helical gear worm drive);

Figure 5 is an exploded view of the screw, nut and worm gear of the utility model (worm gear/helical gear worm drive);

Figure 6 is a cross-sectional view of the combination of the screw, ball nut and worm gear of the utility model (worm gear/helical gear worm drive);

Figure 7 is a cross-sectional view of the combination of screw, cylindrical nut and worm gear of the utility model (worm gear/helical gear worm drive)

Figure 8 is the third structural diagram of the utility model (worm gear/helical gear worm transmission, the drive unit is connected with a clutch);

Figure 9 is the fourth structural diagram of the utility model (gear drive mechanism);

Figure 10 is the fifth structural diagram of the utility model (gear drive mechanism);

Figure 11 is a combined drawing of the screw rod, nut and spur gear of the utility model (gear drive mechanism);

Figure 12 is an enlarged view of A2 in Figure 11 (gear drive mechanism);

Figure 13 is an exploded view of the screw rod, nut and spur gear of the utility model (gear drive mechanism);

Figure 14 is a cross-sectional view of the combination of the screw rod, the ball nut and the spur gear of the utility model (gear transmission mechanism);

Figure 15 is a cross-sectional view of the combination of the screw rod, cylindrical nut and spur gear of the utility model (gear drive);

Figure 16 is the sixth structural diagram of the utility model (gear transmission mechanism, the drive unit is connected with a clutch);

Figure 17 is the seventh structural diagram of the utility model (gear transmission mechanism, the drive unit is connected with a clutch);

The parts in the drawings are marked as follows:

Gear box 1, screw 2, buffer block 21, nut 3, drive unit 4, bracket 5, mounting plate 6, worm gear 7, worm 8, groove 9, protrusion 10, drive gear 11, spur gear 12, clutch 15 , The driving part 151, the driven part 152, the driving shaft 153 and the gap 16.

detailed description

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the scope of protection of the utility model. .

Embodiment 1: An electric opening and closing device for a side door of an automobile, as shown in Figures 1 to 6, includes a gear box 1, a screw rod 2, a nut 3, and a drive unit 4. The drive unit is connected to the gear box, and the nut sleeve Set on the outer circumference of the screw rod, one end of the screw rod is fixedly connected to the vehicle body through the bracket 5, and the other end penetrates the gear box and the nut on the outer circumference is located in the gear box; the gear box is provided with a gear transmission mechanism, so The drive unit is connected to the nut through a gear transmission mechanism; the gear box and the drive unit are both installed in the side door through the mounting plate 6, and the drive unit drives the nut to rotate through the gear transmission mechanism to drive the screw rod Reciprocating back and forth to push the side door to open or close relative to the vehicle body.

The driving unit includes a driving motor.

The driving motor is connected with a planetary gear box.

The gear transmission mechanism includes a worm wheel 7 and a worm 8, the worm is connected to the output shaft of the drive motor, the worm wheel has a central hole, and the nut is arranged in the central hole of the worm wheel and is arranged between the worm wheel There is an occlusal structure, the worm wheel drives the nut to rotate to drive the screw rod to move forward and backward, and the occlusal structure enables the screw rod to swing circumferentially when it moves back and forth.

The occlusal structure is specifically: the nut is a ball nut, the spherical surface of the ball nut is provided with a groove 9 along the moving direction of the screw, and the inner wall of the central hole of the worm wheel is provided with a protrusion extending toward the center 10. The protrusion engages with the groove, and the end of the protrusion is located in the groove. When the worm wheel rotates, the groove is clamped by the protrusion to drive the nut to rotate.

Embodiment 2: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 1. The difference is that: the occlusal structure is specifically that the nut is a ball nut, and the spherical surface of the ball nut is provided with a convex As a result, the inner wall of the central hole of the worm wheel is provided with a groove along the moving direction of the screw, the protrusion is engaged with the groove, the end of the protrusion is located in the groove, and the worm wheel passes through when it rotates. The protrusion catches the groove and drives the nut to rotate.

Embodiment 3: An electric opening and closing device for a side door of an automobile, as shown in FIG. 7, is basically the same in structure as Embodiment 1, except that: the occlusal structure is specifically that the nut is a cylindrical nut, and the cylindrical nut The surface of the nut is provided with a groove along the moving direction of the screw, the inner wall of the central hole of the worm wheel is provided with a protrusion extending toward the center, the protrusion is engaged with the groove, and the end of the protrusion is located at In the groove, there is a gap 16 between the protrusion and the bottom surface of the groove.

Embodiment 4: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 1. The difference is that: the occlusal structure is specifically that the nut is a cylindrical nut, and the surface of the cylindrical nut is provided with a convex As a result, the inner wall of the central hole of the worm wheel is provided with a groove along the moving direction of the screw, the protrusion is engaged with the groove, the end of the protrusion is located in the groove, and the protrusion is in contact with the groove. There is a gap between the bottom surfaces of the grooves.

Embodiment 5: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 1. The difference is that: the occlusal structure includes an elastic body, the elastic body is arranged between the worm wheel and the nut, and the worm wheel passes through The elastic body drives the nut to rotate; the elastic body can be a silicone body or a rubber body, but is not limited to this.

Example 6: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Example 1. The difference is that: the occlusal structure includes a plurality of springs, which are evenly arranged along the circumferential direction of the inner wall of the central hole of the worm wheel and are arranged at Between the worm gear and the nut.

The two ends of the spring are respectively fixedly connected with the worm wheel and the nut.

In Embodiment 1 to Embodiment 6, a gear set is also provided between the worm wheel and the worm.

The worm gear described in Example 1 to Example 6 can be replaced with a helical gear.

Embodiment 7: An electric opening and closing device for a side door of an automobile, as shown in Figures 9-14, includes a gear box 1, a screw rod 2, a nut 3, and a drive unit 4. The drive unit is connected to the gear box, and the nut sleeve Set on the outer circumference of the screw rod, one end of the screw rod is fixedly connected to the vehicle body through the bracket 5, and the other end penetrates the gear box and the nut on the outer circumference is located in the gear box; the gear box is provided with a gear transmission mechanism, so The drive unit is connected to the nut through a gear transmission mechanism; the gear box and the drive unit are both installed in the side door through the mounting plate 6, and the drive unit drives the nut to rotate through the gear transmission mechanism to drive the screw rod Reciprocating back and forth to push the side door to open or close relative to the vehicle body.

The driving unit includes a driving motor.

The driving motor is connected with a planetary gear box.

The gear transmission mechanism includes a drive gear 11 and a spur gear 12, the drive gear is connected to the output shaft of the drive motor, the spur gear has a center hole, and the nut is arranged in the center hole of the spur gear and is connected to the spur gear. An engaging structure is provided between the gears, the spur gear drives the nut to rotate to drive the screw rod to move forward and backward, and the engaging structure enables the screw rod to swing circumferentially when it moves back and forth.

The occlusal structure is specifically: the nut is a ball nut, the spherical surface of the ball nut is provided with a groove 9 along the moving direction of the screw, and the inner wall of the central hole of the spur gear is provided with a convex extending toward the center. From 10, the protrusion engages with the groove, the end of the protrusion is located in the groove, and when the spur gear rotates, the groove is clamped by the protrusion to drive the nut to rotate.

Embodiment 8: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 7. The difference is that: the occlusal structure is specifically that the nut is a ball nut, and the spherical surface of the ball nut is provided with a convex As a result, the inner wall of the central hole of the spur gear is provided with a groove along the moving direction of the screw, the protrusion is engaged with the groove, the end of the protrusion is located in the groove, and the spur gear rotates When the groove is clamped by the protrusion, the nut is driven to rotate.

Embodiment 9: An electric opening and closing device for a side door of an automobile, as shown in FIG. 15, has basically the same structure as Embodiment 7, except that: the biting structure is specifically that the nut is a cylindrical nut, and the cylindrical nut is The surface of the nut is provided with a groove along the moving direction of the screw rod, and the inner wall of the central hole of the spur gear is provided with a protrusion extending toward the center. The protrusion engages with the groove, and the end of the protrusion Located in the groove, there is a gap between the protrusion and the bottom surface of the groove.

Embodiment 10: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 7. The difference is that: the occlusal structure is specifically that the nut is a cylindrical nut, and the surface of the cylindrical nut is provided with a convex As a result, the inner wall of the central hole of the spur gear is provided with a groove along the moving direction of the screw, the protrusion is engaged with the groove, the end of the protrusion is located in the groove, and the protrusion and There is a gap between the bottom surfaces of the grooves.

Embodiment 11: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 7. The difference is that the snap-in structure includes an elastic body, and the elastic body is arranged between the spur gear and the nut. The gear drives the nut to rotate through an elastic body; the elastic body may be a silicone body or a rubber body, but is not limited to this.

Embodiment 12: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 7. The difference is that the snapping structure includes a plurality of springs. The springs are evenly arranged and arranged along the circumferential direction of the inner wall of the central hole of the spur gear. Between the spur gear and the nut.

The two ends of the spring are respectively fixedly connected with the spur gear and the nut.

A gear set is also provided between the driving gear and the spur gear in Embodiment 7-12.

Embodiment 13: An electric opening and closing device for a side door of an automobile, as shown in FIG. 8, is basically the same in structure as Embodiment 1, except that a clutch 15 is provided between the drive motor and the gear box, and the clutch includes The driving part 151 and the driven part 152 are connected with a driving shaft 153, the output shaft of the driving motor is connected with the driving part of the clutch, and the driving shaft of the clutch is connected with a worm.

Embodiment 14: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 2, except that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a worm.

Embodiment 15: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 3. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a worm.

Embodiment 16: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 4. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a worm.

Embodiment 17: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 5. The difference is that a clutch 15 is provided between the driving motor and the gear box. The clutch includes a driving part 151 and a driven part. A drive shaft 153 is connected to the driven part, the output shaft of the drive motor is connected to the driving part of the clutch, and the drive shaft of the clutch is connected to a worm.

Embodiment 18: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 6, except that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a worm.

The worm gear described in Example 13 to Example 18 can be replaced with a helical gear.

Embodiment 19: An electric opening and closing device for a side door of an automobile, as shown in Figures 16-17, is basically the same in structure as Embodiment 7, except that a clutch is provided between the drive motor and the gear box, and the The clutch includes a driving part and a driven part, the driven part is connected with a driving shaft, the output shaft of the driving motor is connected with the driving part of the clutch, and the driving shaft of the clutch is connected with a driving gear.

Embodiment 20: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 8. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a drive gear.

Embodiment 21: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 9. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a drive gear.

Embodiment 22: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 10. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a drive gear.

Embodiment 23: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 11. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a drive gear.

Embodiment 24: An electric opening and closing device for a side door of an automobile. The structure is basically the same as that of Embodiment 12. The difference is that a clutch is provided between the driving motor and the gear box, and the clutch includes a driving part and a driven part. The driven part is connected with a drive shaft, the output shaft of the drive motor is connected with the driving part of the clutch, and the drive shaft of the clutch is connected with a drive gear.

In Example 1 to Example 24, the free end of the screw rod is provided with a buffer block (21) that prevents the screw rod from leaving the gear box.

The model of the driving motor in Example 1 to Example 24 is a brushless hollow cup.

In Example 1 to Example 24, the lead of the screw rod is 25-30 mm.

Embodiment 25: The utility model also proposes an automobile, which includes the side door electric opening and closing device of the automobile as described in the above embodiment 1 to embodiment 24. The specific structure of the side door electric opening and closing device of the automobile can refer to the above implementation For example, since the vehicle adopts all the technical solutions of the above-mentioned embodiments, it at least includes all the beneficial effects brought about by the above-mentioned embodiments, and will not be repeated here.

The above are only the embodiments of the present utility model, and do not therefore limit the scope of the present utility model. Any equivalent structural transformation made using the content of the utility model description and drawings, or directly or indirectly applied to other related technical fields , The same reason is included in the scope of patent protection of this utility model.

Claims

An electric opening and closing device for a side door of an automobile, characterized in that it comprises a gear box (1), a screw rod (2), a nut (3) and a drive unit (4), the drive unit is connected to the gear box, and the nut is sleeved On the outer circumference of the screw rod, one end of the screw rod is fixedly connected to the vehicle body, and the other end penetrates the gear box and the nut on the outer circumference is located in the gear box; the gear box is provided with a gear transmission mechanism, and the drive unit passes through the gear The transmission mechanism is connected with the nut; the gear box and the drive unit are both installed in the side door, and the drive unit drives the nut to rotate through the gear transmission mechanism to drive the screw rod to reciprocate back and forth, thereby pushing the The side door opens or closes relative to the vehicle body.
The automobile side door electric opening and closing device according to claim 1, wherein the gear transmission mechanism includes a gear, the gear has a central hole, and the gear is sleeved on the outer circumference of the nut and is arranged between the nut There is an occluding structure, the gear drives the nut to rotate to drive the screw rod to move back and forth, and the occluding structure enables the screw to swing circumferentially when it moves back and forth.
The automobile side door electric opening and closing device according to claim 2, wherein the occlusal structure is specifically: one of the gear and the nut is provided with a protrusion, and the other is provided with a groove, so The end of the protrusion is located in the groove, and when the gear rotates, the groove is clamped by the protrusion to drive the nut to rotate.
The electric opening and closing device for automobile side doors according to claim 2, characterized in that the snap structure comprises an elastic body, the elastic body is arranged between the gear and the nut, and the gear drives the nut to rotate through the elastic body.
The electric opening and closing device for side doors of an automobile according to claim 2, characterized in that the engaging structure includes a plurality of springs, and the plurality of springs are evenly arranged along the inner wall of the gear center hole and arranged between the gear and the nut.
The electric opening and closing device for a side door of an automobile according to claim 2, wherein the gear is a spur gear, a worm gear or a helical gear.
The electric opening and closing device for the side door of an automobile according to claim 1, wherein the driving unit includes a driving motor.
The electric opening and closing device for the side door of an automobile according to claim 1, characterized in that: a clutch (15) is provided between the drive unit and the gear box.
The electric opening and closing device for the side door of an automobile according to claim 1, wherein the nut is a ball nut or a cylindrical nut.
An automobile, characterized by comprising the electric opening and closing device for the side door of the automobile according to any one of claims 1-9.