CN213228278U

CN213228278U - Driving device and vehicle skylight

Info

Publication number: CN213228278U
Application number: CN202020794501.2U
Authority: CN
Inventors: 古雄亮; 欧阳帆; 邝伟耀
Original assignee: Johnson Electric International AG
Current assignee: Johnson Electric International AG; Johnson Electric Guangdong Co Ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-05-18
Anticipated expiration: 2030-05-13
Also published as: WO2021227780A1

Abstract

The utility model provides a drive arrangement and vehicle skylight. Drive arrangement includes the motor and with the gear box that the motor is connected, the gear box includes the casing, arrange in drive mechanism in the casing and independent shaping and assemble extremely the apron of casing, drive mechanism includes output, output at least part outstanding in the top surface of apron, be formed with on the apron with output relatively arranged's barricade, the barricade with output interval is so that the cable makes with output transmission meshes. The utility model also provides a vehicle skylight. The utility model discloses an apron and casing are mutually independent part, can be according to the apron of the nimble adaptation of different customers' demand, then with standardized casing assembly together can, and need not design and/or change whole gear box waste time and energy.

Description

Driving device and vehicle skylight

Technical Field

The utility model relates to a motor drive technical field, concretely relates to drive arrangement and vehicle skylight.

Background

The common vehicle skylight mainly drives a cable through a driving device so as to control the opening and closing of the skylight. The drive means typically comprise an electric motor and a gearbox connected to an output shaft of the motor. The gear box comprises a box body and an output gear protruding out of the box body, wherein a retaining wall is integrally formed on the box body and used for guiding the inhaul cable to be meshed with the output gear, and therefore the skylight is driven to open and close under the driving of the output gear. However, in the case of the retaining wall design integrally formed on the housing, once the retaining wall of the existing gear housing is not matched with the adaptive mounting structure of the vehicle sunroof of the entire vehicle manufacturer, the entire gear housing has to be replaced, so that the entire housing needs to be redesigned and the mold opening, which results in an extended development period and increased cost.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a driving device and a vehicle sunroof that can solve the above problems.

Therefore, the utility model provides a drive arrangement, thereby it is used for driving the cable translation control vehicle skylight, drive arrangement include the motor and with the gear box that the motor is connected, the gear box include the casing, arrange in drive mechanism in the casing and independent shaping and assemble extremely the apron of casing, drive mechanism includes the output, the output at least part salient in the top surface of apron, be formed with on the apron with the barricade of output mutual disposition, the barricade with the output interval is in order to be suitable for arranging thereby the cable make the cable with output transmission meshing.

In some embodiments, the housing further includes a receiving cavity for receiving the transmission mechanism, and the cover plate covers an opening of the receiving cavity.

In some embodiments, the driving device further comprises a spacer fixedly arranged between the output member and the retaining wall, so that the cable is in direct contact with the spacer, and the wear resistance of the spacer is higher than that of the cover plate.

In some embodiments, the spacer includes a sheet-shaped body and a side wall extending substantially perpendicularly from a side surface of the sheet-shaped body, the cover plate includes a recess recessed from a top surface thereof for receiving the sheet-shaped body of the spacer, the output member penetrates the recess and a center of the sheet-shaped body, and the side wall of the spacer is attached to a surface of the retaining wall opposite to the output member.

In some embodiments, the side wall of the spacer includes a strip-shaped body and a fastening portion extending from a side surface of the strip-shaped body at an angle, the strip-shaped body is attached to a surface of the retaining wall opposite to the output member, and the fastening portion is fastened to the outer wall of the retaining wall.

In some embodiments, a surface of the retaining wall opposite the output member includes a protrudingly formed abutment portion.

In some embodiments, the surface of the retaining wall opposite to the output member includes a protruding abutting portion, and the side wall of the spacer includes a middle section, wherein the middle section is correspondingly attached to the abutting portion.

In some embodiments, the surface of the retaining wall opposite to the output member includes a protruding abutting portion and two spacing portions respectively located at two sides of the abutting portion, the sidewall of the spacing member includes a middle section and two spacing sections respectively located at two ends of the middle section, wherein the middle section is correspondingly attached to the abutting portion, and the two spacing sections are correspondingly attached to the two spacing portions respectively.

In some embodiments, a length of the intermediate section of the spacer in the cable direction is no less than a linear length of an engagement surface of the cable with the output and/or no greater than a diameter of the output. In some embodiments, a linear length of the sidewall of the spacer in the cable direction is not less than a diameter of the output and/or not greater than a length of the sheet body in the cable direction.

In some embodiments, the cover plate and the housing are connected by ultrasonic welding or fasteners or laser welding or heat melting or snapping or a combination of two or more of them.

In some embodiments, two retaining walls are formed on the cover plate, and the two retaining walls are opposite to the output piece and are arranged at intervals.

In some embodiments, the drive mechanism is integrally formed in an overmolded manner.

The utility model also provides a vehicle skylight, which comprises a guy cable, a skylight and the driving device; the driving device controls the opening and/or closing of the skylight through the inhaul cable.

The cover plate and the shell of the utility model are mutually independent parts, namely, the cover plate and the shell are respectively formed and then assembled and connected. Therefore, if the skylight adaptive installation structures of customers are different, the design of the cover plate only needs to be changed according to actual conditions. The utility model discloses a drive arrangement can be according to the apron of the nimble adaptation of different customers' demand selection, then with standardized casing assembly together can, and need not design and/or change whole gear box waste time and energy.

Drawings

Fig. 1 is a perspective view of a drive device according to a first embodiment of the present invention.

Fig. 2 is an exploded view of the drive device shown in fig. 1.

Fig. 3a is a top view of the drive device shown in fig. 1.

Fig. 3b is a top view of the spacer of the driving device shown in fig. 1.

Fig. 3c is a perspective view of a spacer of a driving device according to a second embodiment of the present invention.

Fig. 4 is an exploded view of a transmission structure of a drive device according to a third embodiment of the present invention.

Fig. 5 is another exploded view of the transmission structure of the driving apparatus according to the third embodiment of the present invention.

Fig. 6 is an exploded view of a drive device according to a fourth embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, so that the technical solutions and the advantages thereof will be more clearly understood. It is to be understood that the drawings are provided for purposes of illustration and description only and are not intended as a definition of the limits of the invention, but the dimensions shown in the drawings are for convenience and are not to be taken as limiting the scale.

Referring to fig. 1 to 2, a driving apparatus for a sunroof for a vehicle according to a first embodiment of the present invention includes a motor 10 and a gear case 20 connected to the motor 10. A worm 12 is connected to an output shaft 11 of the motor 10 in a rotationally fixed manner. The gearbox 20 comprises a housing 30, a gear mechanism 40 arranged in the housing 30, and a cover plate 50 mounted to the housing 30, wherein the gear mechanism 40 comprises a worm wheel 41 engaging with the worm 12, and an output element connected in a rotationally fixed manner in the center of the worm wheel 41. The output member includes an output gear 42, and the output gear 42 partially protrudes from the top surface of the cover plate 50. It will be appreciated that in other embodiments, the drive device may employ other transmission mechanisms, as long as it can transmit the torque of the motor 10 to the output gear 42, and preferably has a speed reduction function.

Specifically, the housing 30 has a substantially rectangular parallelepiped shape, and includes a first receiving cavity 31 laterally recessed from one side surface thereof, and a second receiving cavity 32 axially recessed from a top surface thereof. The first receiving cavity 31 and the second receiving cavity 32 are communicated through a lateral through hole 33, wherein the axis of the first receiving cavity 31 is perpendicular to the axis of the second receiving cavity 32. The worm 12 is accommodated in the first accommodating cavity 31, the worm wheel 41 is accommodated in the second accommodating cavity 32, and the worm 12 and the worm wheel 41 are engaged with each other at the through hole 33. The center of the second receiving cavity 32 extends vertically to form a fixed shaft 320. The transmission mechanism 40 is rotatably sleeved on the fixed shaft 320.

The cover plate 50 has a circular shape, and a first through hole 51 is formed at the center thereof. The cover plate 50 covers the opening of the second receiving cavity 32, and the output gear 42 passes through the first through hole 51 to partially protrude from the top surface of the cover plate 50.

The cover plate 50 may be fixedly connected to the housing 30 by means of fasteners. As shown in the drawings, the cover plate 50 of the present embodiment is symmetrically formed with a plurality of lugs 52 on the circumferential side, and correspondingly, the top surface of the housing 30 is correspondingly recessed to form mounting slots 34 for receiving the lugs 52, and screws 520 extend through the lugs 52 and are connected with the threads in the mounting slots 34.

Preferably, an annular groove 43 is formed between the worm gear 41 and the output gear 42, and a wave washer 44 is disposed in the annular groove 43 for damping shock and vibration between the transmission mechanism 40 and the cover plate 50. In this embodiment, the wave washer 44 includes a plurality of axially protruding peak portions 440 and axially recessed valley portions 441, and the peak portions 440 and the valley portions 441 are curved and alternately arranged in the circumferential direction. It will be appreciated that in other embodiments, the wave washer may take other configurations.

Referring to fig. 1 to 3a, a retaining wall 53 is formed on the cover plate 50 to be opposite to and spaced apart from the output gear 42. The retaining wall 53 is preferably integrally formed with the cover plate 50. Preferably, the cover plate 50 is formed with two retaining walls 53, and the two retaining walls 53 are respectively disposed at opposite sides of the output gear 42 and are symmetrical with respect to the output gear 42. Each retaining wall 53 is spaced apart from a corresponding side of the output gear 42 to form a receiving passage 530 for receiving a cable (not shown) for controlling opening and closing of the sunroof, wherein the cable has teeth formed thereon. When installed, the cable is disposed between the retaining wall 53 and the output gear 42 and is engaged with the output gear 42. Thus, when the motor 10 is operated, the output gear 42 rotates to drive the pulling cable to translate, thereby controlling the opening and closing of the vehicle skylight.

The cover 50 and the housing 30 in this embodiment are separate components, i.e., the cover 50 and the housing 30 are separately molded and then assembled. Therefore, if the skylight fitting installation structure of the customer is different, the design of the cover plate 50 only needs to be changed according to actual conditions. The utility model discloses a drive arrangement can be according to the apron of the nimble adaptation of different customers' demand selection, then with standardized casing 30 assembly together can, and need not design and/or change whole gear box waste time and energy. During assembly, the transmission mechanism 40 is sleeved on the fixed shaft 320 from top to bottom, then the first through hole 51 of the cover plate 50 is aligned with the output gear 42 to cover the opening of the second accommodating cavity 32 from top to bottom, and then the cover plate 50 and the shell 30 are fixedly connected.

Referring also to fig. 2-3 b, the cover plate 50 preferably includes a recess 54 recessed from its top surface. The driving device further includes a spacer 60, and the spacer 60 includes a sheet-shaped body 61 and two side walls 62 vertically extending from both sides of the sheet-shaped body 61, respectively. The sheet body 61 is accommodated in the groove 54. The side walls 62 are fixedly connected with the corresponding retaining walls 53. The wear resistance of the material of the spacer 60 is higher than that of the material of the cover plate 50 and thus higher than that of the retaining wall 53. For example, the spacer 60 may be an iron sheet. The cover plate 50 and the retaining wall 53 may be integrally made of plastic. After the cover plate 50 of the present embodiment is assembled, the life span of the gear case 20 is extended because the cable is in direct contact with the spacer 60 having higher wear resistance, not in direct contact with the cover plate 50 and the retaining wall 53. In addition, the design of the groove 54 enables the sheet-shaped body 61 of the spacer 60 not to protrude out of the cover plate, the appearance is better, and the sheet-shaped body 61 is well fixed and limited.

In this embodiment, the recess 54 is generally square and is located in the center of the cover plate 50. The first through hole 51 is formed at the center of the groove 54. The sheet-like body 61 of the spacer 60 has a square shape as a whole corresponding to the groove 54, and a second through hole 63 corresponding to the first through hole 51 is formed at the center. The retaining walls 53 are disposed adjacent the respective recess edges 540. Correspondingly, the side walls 62 of the spacer 60 are fixedly connected with the corresponding retaining walls 53. Preferably, the linear length a of the side wall 62 of the spacer 60 in the cable direction is not smaller than the diameter D of the output gear 42, and more preferably, not larger than the length B of the sheet-like body 61 of the spacer 60 in the cable direction, thereby ensuring the translational stability of the cable while avoiding unnecessary restraint of the cable by the spacer 60.

Preferably, the surface of the retaining wall 53 opposite to the output gear 42 includes an abutting portion 531 formed by protruding from the center thereof, and two spacing portions 532 respectively located at two sides of the abutting portion 531, wherein the spacing portions 532 are flush with the corresponding groove edges 540, and the abutting portion 531 is closer to the output gear 42 relative to the corresponding side wall of the groove 54. Correspondingly, the sidewall 62 of the spacer 60 includes a middle section 620 and two spacing sections 621 respectively located at two ends of the middle section 620, wherein the middle section 620 is correspondingly attached to the abutting portion 531, and the two spacing sections 621 are respectively and correspondingly attached to the two spacing portions 532 one by one, so as to effectively prevent the spacer 60 from moving during the cable translation process. When the cable is installed, the cable is arranged between the output gear 42 and the middle section 620, so that one side of the cable is meshed with the output gear 42, and the other side of the cable is abutted against the middle section 620. Thus, the cable can be engaged with the output gear 42 more stably, and the translation process is stable. Preferably, the length C of the intermediate section 620 in the cable direction is not less than the linear length of the engagement surface of the cable with the output gear 42, and more preferably, not more than the diameter D of the output gear 42, so that a balance can be achieved between the translational stability and the translational smoothness of the cable. In the present embodiment, the length direction of the abutting portion 531 in the cable direction intersects with the axis of the output shaft 11 of the motor 10, and accordingly, the length directions of the groove 54 and the intermediate section 620 in the cable direction also intersect with the axis of the output shaft 11 of the motor 10.

It should be noted that the aforementioned linear length is opposite to the curved length, for example, the linear length a is opposite to the length of the sidewall 62 of the spacer 60 extending along the surface of one of the spacing sections 621, the middle section 620 and the other spacing section 621; while the linear length of the meshing surface of the output gear 42 is opposite to the arc length of the peripheral side surface of the gear, in fact, it can be understood as the chord length of the corresponding arc of the meshing surface of the output gear 42.

In the present embodiment, the transmission mechanism 40 is integrally formed by over-molding (overmold).

Of course, it is understood that in other embodiments, the transmission mechanism 40 may be assembled in other manners, specifically referring to the embodiment corresponding to fig. 4 and 5, which will be described later.

It will also be appreciated that in other embodiments, the spacer may also be configured and/or configured to cooperate with the cover plate, for example, in some embodiments, the cover plate 50 may not define the recess 54. The spacer may also be configured to engage the retaining wall in other configurations and/or configurations, as shown in fig. 3 c.

Fig. 3c shows a perspective view of the spacer 160 of the drive device of the second embodiment of the present invention. The spacer 160 includes a substantially square plate-shaped body 161 and two sidewalls 162 extending perpendicularly from two opposite sides of the plate-shaped body 161. The sheet-like body 161 is also formed with a perforation 163 at its center. The sidewall 162 of the spacer 160 includes a strip-shaped main body 164 and two first fastening portions 165 extending from two opposite ends of the strip-shaped main body 164 along the length direction thereof, and the two first fastening portions 165 are disposed at an angle to the strip-shaped main body 164. Preferably, the sidewall 162 of the spacer 160 further includes a second engaging portion 166 extending from one side of the strip-shaped body 164 along the length direction thereof, and the second engaging portion 166 is disposed at an angle to the strip-shaped body 164. Corresponding to the spacer 160 in the present embodiment, the surface of the retaining wall (not shown) facing the output gear is also adapted, and may be, for example, only planar. When the gear box is installed, the sheet-shaped body 161 of the spacer 160 is accommodated in the corresponding groove, the strip-shaped main body 164 of the spacer 160 is attached to the planar surface of the retaining wall facing the output gear, and the first fastening portion 165 and the second fastening portion 166 are fastened to corresponding portions of the outer wall of the retaining wall.

Fig. 4 and 5 show exploded views of a transmission mechanism 40 of a drive device according to a third embodiment of the present invention.

In fig. 4 and 5, the output gear 42 is a single body member including a cylindrical body 420 having a through hole 424, a plurality of teeth 421 formed at a circumferential side of one end of the cylindrical body 420, and an annular flange 422 extending radially outward from an end surface of the other end of the cylindrical body 420. A plurality of catching grooves 423 are formed at an axial bottom end of the annular flange 422.

The worm wheel 41 includes a worm wheel body 410 having a central bore 414, and a snap ring 411 formed integrally with the worm wheel body 410. The axial top end of the worm wheel body 410 in the snap ring 411 is formed with a plurality of protrusions 412 for being in one-to-one clamping fit with the plurality of clamping grooves 423 on the annular flange 422 in the axial direction, so that when the worm wheel 41 rotates, the output gear 42 also rotates. The snap ring 411 includes a connection ring 413 extending upward in the axial direction from the axial top end of the output gear 42, and an inner annular edge 415 extending inward in the radial direction from the top end of the connection ring 413. The snap ring 411 and the axial top end of the worm gear 41 form an annular cavity 416 for receiving the annular flange 422 of the output gear 42. When the transmission mechanism 40 is assembled into the housing 30, the fixing shaft 320 is inserted through the center hole 414 of the worm wheel 41 and the through hole 424 of the output gear 42 in this order.

By arranging the annular flange 422 of the output gear 42 in the annular cavity 416 of the worm wheel 41, not only the connection strength of the two can be further improved, and further the transmission stability of the two can be improved, but also the worm wheel 41 can be positioned, so that it is possible to maintain a certain gap between the two axial ends of the worm wheel 41 and the cover plate 50 and the housing 30, and further the rotation resistance of the worm wheel 41 is reduced, and simultaneously the vibration and noise of the whole driving device are reduced. It will be appreciated that in other embodiments, the worm gear 41 and the output gear 42 may be arranged in other ways to prevent twisting.

Referring to fig. 6, a driving device according to a fourth embodiment of the present invention is similar to the driving device according to the first embodiment, and the same parts are not repeated herein, and the main differences from the driving device according to the first embodiment are: the cover plate 150 in this embodiment is fixedly connected to the housing 130 by ultrasonic welding.

Specifically, the housing 130 further includes an annular support surface 35 recessed in the axial direction from the top surface thereof, and the inside of the support surface 35 is adjacent to the second housing chamber 32. The circumferential side of the cover plate 150 is no longer formed with the lugs 52, but is directly supported on the support surface 35 via its bottom surface, and the support surface 35 and the bottom surface periphery of the corresponding cover plate 150 are fused together by means of ultrasonic welding to fixedly connect the cover plate 150 and the housing 130.

It is understood that in other embodiments, the cover plate and the housing may be connected by other methods, such as laser welding, heat fusing, or snapping, and may also be connected by a combination of two or more of the aforementioned ultrasonic welding, fastening, laser welding, heat fusing, and snapping.

As in the first embodiment, the transmission mechanism 140 in this embodiment is also integrally formed by over-molding (overmold). The worm wheel 141 (for example, made of plastic material) of the transmission mechanism 140 is coated on a part of the surface (for example, the annular flange 422) of the output gear 142 by an overmolding method, so that the worm wheel 141 and the gear 142 are integrally formed and cannot be detached.

In addition, the utility model also provides a vehicle skylight, including cable, skylight, the drive arrangement as before; the driving device controls the opening and/or closing of the skylight through the inhaul cable.

The above description is only a preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above listed embodiments, any person skilled in the art can obviously obtain simple changes or equivalent substitutions of the technical solutions within the technical scope of the present invention.

Claims

1. A driving device is used for driving a cable to move, and comprises a motor and a gear box connected with the motor, and is characterized in that the gear box comprises a shell, a transmission mechanism arranged in the shell, and a cover plate which is separately molded and assembled to the shell, the transmission mechanism comprises an output part, the output part at least partially protrudes out of the top surface of the cover plate, a retaining wall which is opposite to the output part is formed on the cover plate, and the retaining wall is spaced from the output part and is suitable for arranging the cable so that the cable is in transmission engagement with the output part.

2. The driving apparatus as claimed in claim 1, wherein the housing further comprises a receiving cavity for receiving the transmission mechanism, and the cover plate covers an opening of the receiving cavity.

3. The drive device according to claim 1, further comprising a spacer fixedly disposed between the output member and the retaining wall such that the cable is in direct contact with the spacer, and the wear resistance of the spacer is higher than the wear resistance of the cover plate and/or the retaining wall.

4. The driving apparatus as claimed in claim 3, wherein the spacer includes a plate-shaped body and a side wall extending from the plate-shaped body, the cover plate includes a recess recessed from a top surface thereof for receiving the plate-shaped body of the spacer, the output member penetrates the recess and the center of the plate-shaped body, and the side wall of the spacer is attached to a surface of the retaining wall opposite to the output member.

5. The driving device as claimed in claim 4, wherein the side wall of the spacer includes a strip-shaped body and a fastening portion extending from a side surface of the strip-shaped body at an angle, the strip-shaped body is attached to a surface of the retaining wall opposite to the output member, and the fastening portion is fastened to an outer wall of the retaining wall.

6. The drive of claim 1, wherein a surface of the retaining wall opposite the output member includes a protrudingly formed abutment.

7. The driving device as claimed in claim 3, wherein the surface of the retaining wall opposite to the output member includes a protruding abutting portion, the spacer includes a sheet-shaped body and a side wall extending from the sheet-shaped body, the side wall of the spacer includes a middle section, and the middle section is correspondingly fitted on the abutting portion.

8. The driving device as claimed in claim 7, wherein the surface of the retaining wall opposite to the output member further comprises two spacing portions respectively located at two sides of the abutting portion, and the sidewall of the spacer further comprises two spacing segments respectively located at two ends of the middle segment, wherein the two spacing segments and the two spacing portions are respectively correspondingly attached.

9. The drive device according to claim 7, wherein a length of the intermediate section of the spacer in the cable direction is not less than a linear length of an engagement surface of the cable with the output member and/or not more than a diameter of the output member; the linear length of the side wall of the spacer in the cable direction is not less than the diameter of the output member and/or not more than the length of the sheet-like body in the cable direction.

10. The driving device as claimed in claim 1, wherein the cover plate and the housing are connected by ultrasonic welding or fasteners or laser welding or heat fusion or snap or a combination of two or more of them.

11. The drive of claim 1, wherein said cover plate has two said walls spaced from and opposite said output member, and said drive mechanism is integrally formed by over-molding.

12. A vehicle sunroof, characterized by comprising a cable, a sunroof, a drive device according to any one of claims 1 to 11; the driving device controls the opening and/or closing of the skylight through the inhaul cable.