CN117145341A - Car door driving device and car thereof - Google Patents

Abstract

The invention relates to the technical field of automobile accessories and discloses a vehicle door driving device and an automobile thereof, wherein a shell assembly comprises a main shell and a transmission shell, the main shell comprises a first sealing element, the main shell is provided with a first transmission connecting port, a second transmission connecting port, a sound insulation sealing cavity and a transmission channel, the sound insulation sealing cavity and the transmission channel are isolated from each other, a driving element stretches into the sound insulation sealing cavity through the first transmission connecting port, the driving element is in sealing fit with the first transmission connecting port, a worm wheel and a worm are positioned in the sound insulation sealing cavity, the worm is respectively connected with the driving element and the worm wheel in a transmission way, one end of a transmission rod stretches into the sound insulation sealing cavity and is fixed to the main shell, the transmission rod is in sealing fit with the second transmission connecting port through the first sealing element, the transmission rod stretches into the transmission shell through the second transmission connecting port, and a transmission seat is positioned in the transmission shell and is in transmission connection with the transmission rod, and a supporting rod stretches into the transmission shell through the transmission channel and is in transmission connection with the transmission seat. The vehicle door driving device and the vehicle thereof prevent noise from overflowing and improve the waterproof sealing effect.

Description

Car door driving device and car thereof

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a vehicle door driving device and an automobile with the same.

Background

The electric opening system of the side door of the car comprises: the door opening actuator, the electric door-locking device, the radar, the ECU and other parts can be combined to realize the electric or remote control opening of the automobile door, and the door opening and closing operation can be completed without manual push and pull, so that the door opening and closing device is one of automobile configuration functions. The existing car door is hinged with the car body, the car body is driven to rotate relative to the car door through the car door driving device, and the existing car door driving device has some unresolved defects. If not waterproof, dustproof, there is the noise big to and the easy risk of inefficacy of operation under abominable operating mode, and have stability poor.

Disclosure of Invention

Aims at solving at least one of the technical problems existing in the prior art. The invention provides a vehicle door driving device and a vehicle with the same, which can effectively isolate the motion noise of a transmission assembly and effectively improve the silencing effect. Meanwhile, the waterproof and dustproof requirements are effectively met. The transmission rod and the transmission seat are arranged in the transmission shell, so that the transmission rod and the transmission seat can be effectively protected, and meanwhile, the silencing effect is improved. Meanwhile, the invention has the advantages of less parts of the whole structure, simple process and reliable performance, thereby reducing the production cost.

In order to achieve the above object, the present invention provides a door driving device including a driving member, a transmission assembly, a housing assembly, and a support rod for connection with a vehicle body;

The transmission assembly comprises a worm extending along a first direction, a transmission rod extending along a second direction, a worm wheel and a transmission seat, wherein the worm wheel is fixed on the transmission rod;

the shell assembly comprises a main shell and a transmission shell used for being connected with the main shell, the main shell comprises a first sealing element, the main shell is provided with a first transmission connecting port, a second transmission connecting port, a sound insulation sealing cavity and a transmission channel, the sound insulation sealing cavity and the transmission channel are isolated from each other, the first transmission connecting port and the second transmission connecting port are respectively communicated with the sound insulation sealing cavity, a driving element stretches into the sound insulation sealing cavity through the first transmission connecting port, the driving element is in sealing fit with the first transmission connecting port, a worm wheel and a worm are located in the sound insulation sealing cavity, the worm is respectively connected with the driving element and the worm wheel in a transmission mode, one end of a transmission rod stretches into the sound insulation sealing cavity and is fixed to the main shell, the other end of the transmission rod is in sealing fit with the second transmission connecting port through the first sealing element, the other end of the transmission rod stretches into the transmission shell, the transmission seat is located in the transmission housing and is in transmission connection with the transmission rod, and the support rod stretches into the transmission seat through the transmission channel and is in transmission connection with the transmission seat.

As the preferred scheme, the driving piece includes drive casing, drive body and drive seat, the drive seat is equipped with along the drive passageway of first direction extension, drive passageway pass through first transmission connector with sealed chamber intercommunication gives sound insulation, the drive casing is equipped with the drive chamber, the drive chamber with drive passageway intercommunication, the drive body install in the drive chamber with in the drive passageway, the drive body with worm drive is connected, the both ends of drive seat respectively with drive casing and main casing sealing connection.

As the preferred scheme, the drive seat is equipped with and connects the guiding gutter, and encircles last seal forming groove and the lower seal forming groove that drive seat edge set up, go up seal forming groove with lower seal forming groove is located respectively the both ends of drive seat, connect the guiding gutter be located the lateral surface of drive seat, connect the both ends of guiding gutter respectively with go up seal forming groove with lower seal forming groove intercommunication, the drive piece includes the drive seal piece, the drive seal piece include the shape with go up seal forming groove corresponds the upper seal portion that sets up, shape with lower seal forming groove corresponds the lower seal portion that sets up and shape with connect seal portion that the guiding gutter corresponds the setting, upper seal portion install in go up seal forming groove and respectively with the upper end sealing fit of drive seat, lower seal portion install in lower seal forming groove and respectively with the lower extreme of drive seat with first connector sealing fit, the both ends of connection seal portion respectively with upper seal portion and lower seal portion are connected.

As a preferable scheme, the driving seat is provided with an anti-falling positioning groove, the driving sealing piece comprises an anti-falling positioning part which is correspondingly arranged with the anti-falling positioning groove in shape, and the anti-falling positioning part is arranged in the anti-falling positioning groove;

the anti-falling positioning groove is positioned at the upper end of the driving seat and is communicated with the upper sealing forming groove, and the anti-falling positioning part is connected with the upper sealing part; and/or the number of the groups of groups,

the anti-falling positioning groove is positioned at the lower end of the driving seat and is communicated with the lower sealing forming groove, and the anti-falling positioning part is connected with the lower sealing part.

As the preferred scheme, the driving piece includes socket cover, circuit board and is used for with the electric connection bolt that the circuit board electricity is connected, the socket cover is equipped with the opening orientation the spacing chamber of socket and a plurality of socket hole of drive seat, the socket cover is equipped with the orientation the convex reference column of main casing, one side of drive seat outwards extends and forms electric connecting portion, be equipped with in the electric connecting portion with the electric connecting chamber of drive passageway intercommunication, electric connecting chamber is equipped with first electric connector, one side of main casing outwards extends and forms the location portion, the location portion is equipped with first locating hole and second locating hole, the reference column peg graft in first locating hole, the lower extreme of socket cover with the second locating hole is connected, electric connecting portion with the location portion install in the spacing intracavity of socket, the electric connection bolt install in the electric connecting chamber and stretch out through first connector outside the socket hole, the circuit board install in the drive passageway and be fixed in the drive seat.

As the preferred scheme, the drive seat includes spacing post, spacing post connect in drive channel inner wall, the lower extreme of spacing post is equipped with first spacing face, the upper end of location portion is equipped with the spacing face of second, the upper end of circuit board with first spacing face is connected fixedly, the lower extreme of circuit board with the spacing face butt of second.

As the preferred scheme, the driving piece including install in the second sealing member in the spacing chamber of socket, the socket lid is equipped with second seal groove and socket lid shaping interface, the second seal groove includes sealed ring channel and connection constant head tank, the seal ring groove is located in the spacing intracavity of socket and encircle the marginal setting in the spacing chamber of socket, the connection constant head tank is located the socket lid is dorsad the spacing chamber of socket one side, the socket lid shaping interface is located the opposite sides of connection constant head tank, the opposite sides of connection constant head tank pass through the socket lid shaping interface and seal ring groove intercommunication, the second sealing member include shape with the shape of seal ring groove correspond the second sealing ring and the shape with the connection constant head tank corresponds the connection constant head tank that sets up, the opposite sides of connection constant head tank pass through respectively the socket lid shaping interface is connected with the second sealing ring, the second sealing ring install in the sealing ring groove, the connection constant head tank, the socket lid pass through the second sealing member respectively with constant head tank and electric connection sealing connection.

As the preferred scheme, the main casing be equipped with the relative third transmission connector that sets up of second transmission connector, the casing subassembly includes shock attenuation sealing member, shock attenuation sealing member include sealed lid, install in the sealed locating cover and the buffer ring of third transmission connector, the periphery of sealed locating cover encircle and be provided with the buffering constant head tank, the buffer ring install in the buffering constant head tank and with the sealed cooperation of third transmission connector butt, sealed locating cover is equipped with the installation through-hole, the one end rotation of transfer line connect in the installation through-hole, the one end that sealed locating cover deviates from the transfer line is equipped with the block groove, sealed lid install in the block groove and seal the installation through-hole.

As the preferred scheme, the transmission seat includes metal reinforcement and plastic sheath, the metal reinforcement includes along the metal connecting piece of first direction extension and along the transmission section of thick bamboo of second direction extension, the transmission section of thick bamboo is equipped with along the transmission hole of second direction intercommunication, the both ends of metal connecting piece respectively with the transmission section of thick bamboo with the bracing piece transmission is connected, the plastic sheath cladding in the surface of metal reinforcement and extend to in the transmission hole and form plastic screw thread transmission face, the screw thread transmission face with the transfer line transmission is connected.

As the preferable scheme, the clearance has between the outline of plastic sheath with the inner wall of transmission casing, the outline orientation of plastic sheath the transmission casing protrusion forms spacing muscle, spacing muscle with transmission casing butt, the plastic sheath is equipped with the spacing groove, the transmission casing orientation the plastic sheath protrusion forms spacing lug, spacing lug install in the spacing groove.

An automobile comprises an automobile body, an automobile door hinged to the automobile body and an automobile door driving device, wherein one end of a supporting rod is connected with the automobile body, and a driving piece, a transmission assembly and a shell assembly are respectively connected in the automobile door.

Compared with the prior art, the vehicle door driving device and the vehicle thereof have the beneficial effects that: the driving piece, the transmission assembly and the supporting rod are arranged in the shell assembly to form the whole body of the vehicle door driving device, and at least one part of the supporting rod extends out of the shell assembly and is used for being connected with the vehicle body so as to fix the vehicle door driving device on the vehicle body. Wherein, drive assembly includes worm, worm wheel, transfer line and drive seat, worm wheel fixed connection is in the one end of transfer line, and worm wheel drive are connected, transfer line and drive seat screw drive connection, and the one end that the automobile body was kept away from with the bracing piece is connected, and the driving piece is connected with worm drive, through driving piece drive worm rotation, the worm passes through the worm wheel drive transfer line transmission, and then the drive seat removes along the extending direction of transfer line, and the drive seat drives the bracing piece transmission, and then makes the relative automobile body of door rotate in order to realize the door action of opening and shutting. The transmission assembly is simple and reliable in structure, the speed ratio and the lead of the transmission rod can be optimized, and the static torque of the motor is improved. Compared with a gear box mechanism, the motor speed reducing device can more effectively meet passive force requirements, and therefore a better silencing effect is achieved by reducing the motor speed. The shell assembly comprises a main shell and a transmission shell, wherein the main shell is provided with a first transmission connecting port, a second transmission connecting port, a sound insulation sealing cavity and a transmission channel, the sound insulation sealing cavity and the transmission channel are isolated from each other, the first transmission connecting port and the second transmission connecting port are respectively communicated with the sound insulation sealing cavity, as worm gears and worm transmission become main noise sources, the worm gears and the worm are arranged in the sound insulation sealing cavity, a driving piece extends into the sound insulation sealing cavity through the first transmission connecting port to be connected with the worm transmission, and the driving piece is in sealing fit with the first transmission connecting port so as to realize the sealing of the first transmission connecting port. At least one part of the transmission rod is positioned in the sound insulation sealing cavity, the other part of the transmission rod extends out to the transmission shell through the second transmission connecting port, the transmission rod is in sealing connection with the second transmission connecting port through the first sealing piece, and then a highly sealed sound insulation space is formed in the sound insulation sealing cavity, so that the purpose of effectively isolating the motion noise of the transmission assembly, particularly the transmission noise of the worm wheel and the worm, and the mute effect is effectively improved. Meanwhile, the waterproof and dustproof requirements are effectively met. The transmission rod and the transmission seat are arranged in the transmission shell, so that the transmission rod and the transmission seat can be effectively protected, and meanwhile, the silencing effect is improved. Meanwhile, the invention has the advantages of less parts of the whole structure, simple process and reliable performance, thereby reducing the production cost.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present invention.

Fig. 2 is a schematic view showing an internal cross-sectional structure of a door driving device according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a transmission assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a main housing according to an embodiment of the present invention.

Fig. 5 is a schematic view of another angle of the main housing according to the embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of a main housing according to an embodiment of the present invention.

Fig. 7 is a schematic view of the structure of the driving seal according to the embodiment of the present invention.

Fig. 8 is a schematic structural view of the upper end of the driving seat according to an embodiment of the present invention.

Fig. 9 is a schematic view of the structure of the lower end of the driving seat according to the embodiment of the invention.

Fig. 10 is a schematic view of a structure of a socket cover facing a driving seat according to an embodiment of the present invention.

Fig. 11 is a schematic view of a structure of a side of the socket cover facing away from the driving socket according to an embodiment of the present invention.

Fig. 12 is a schematic view of the structure of a second seal member according to the embodiment of the present invention.

Fig. 13 is a schematic structural view of a seal positioning cover according to an embodiment of the present invention.

FIG. 14 is a schematic view of a plastic wrap according to an embodiment of the present invention.

Fig. 15 is a schematic structural view of a metal stiffener according to an embodiment of the present invention.

FIG. 16 is a cross-sectional view showing the internal structure of the plastic wrap and the transmission housing according to the embodiment of the present invention.

In the figure:

10. a driving member; 11. a drive housing; 12. a drive chamber; 13. a driving body; 14. a driving seat; 15. a drive channel; 16. connecting the diversion trench; 17. an upper seal forming groove; 18. a lower seal forming groove; 19. driving the seal; 20. an upper sealing part; 21. a lower sealing part; 22. a connection sealing part; 23. an anti-falling positioning groove; 24. an anti-falling positioning part; 25. a limit column; 26. a first limiting surface; 27. a socket cover; 28. a socket limiting cavity; 29. a plurality of socket holes; 30. positioning columns; 31. a circuit board; 32. an electrical connection pin; 33. an electrical connection; 34. an electrical connection cavity; 35. a first electrical connection port; 36. a second seal; 37. a second seal ring; 38. a connection positioning part; 39. a second seal groove; 40. sealing the annular groove; 41. connecting the positioning groove; 42. a seat cover forming interface;

50. a support rod; 51. limit protection pins;

60. a transmission assembly; 61. a worm; 62. a transmission rod; 63. a worm wheel; 64. a transmission seat; 65. a metal reinforcement; 66. a transmission cylinder; 67. a metal connector; 68. a plastic wrap; 69. a plastic thread transmission surface; 70. a metal reinforcement; 71. a limit rib; 72. a limit groove; 73. a limit bump; 74. a shock absorption plastic part;

80. A housing assembly; 81. a main housing; 82. a sound-insulating sealed cavity; 83. a first transmission connection port; 84. a second transmission connection port; 85. a third transmission connection port; 86. a first seal; 87. a shock absorbing seal; 88. sealing cover; 89. sealing and positioning the cover; 90. a buffer positioning groove; 91. mounting through holes; 92. a buffer ring; 93. a cap groove; 94. a transmission channel; 95. a transmission housing; 96. a positioning part; 97. the second limiting surface; 98. a first positioning hole; 99. and a second positioning hole.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present invention are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in the present invention in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; the mechanical connection can be realized, and the welding connection can be realized; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 15, a door driving device according to a preferred embodiment of the present invention includes a driving member 10, a transmission assembly 60, a housing assembly 80, and a support rod 50 for connection with a vehicle body;

the transmission assembly 60 includes a worm 61 extending in a first direction and a transmission rod 62 extending in a second direction, a worm wheel 63, and a transmission seat 64, the worm wheel 63 being fixed to the transmission rod 62;

the housing assembly 80 comprises a main housing 81 and a transmission housing 95 used for being connected with the main housing 81, the main housing 81 comprises a first sealing member 86, the main housing 81 is provided with a first transmission connecting port 83, a second transmission connecting port 84, a sound insulation sealing cavity 82 and a transmission channel 94 which are isolated from each other, the first transmission connecting port 83 and the second transmission connecting port 84 are respectively communicated with the sound insulation sealing cavity 82, a driving member 10 stretches into the sound insulation sealing cavity 82 through the first transmission connecting port 83, the driving member 10 is in sealing fit with the first transmission connecting port 83, a worm wheel 63 and a worm 61 are positioned in the sound insulation sealing cavity 82, the worm 61 is respectively in transmission connection with the driving member 10 and the worm wheel 63, one end of the transmission rod 62 stretches into the sound insulation sealing cavity 82 and is fixed to the main housing 81, the other end of the transmission rod 62 stretches into the transmission housing 95 through the first sealing member 86 and the second transmission connecting port 84, the transmission seat 64 is positioned in the transmission housing 95 and is in transmission connection with the transmission rod 62 through the transmission channel 94, and the supporting rod 50 stretches into the transmission housing 95 and is in transmission connection with the transmission seat 64.

An automobile comprises a vehicle body, a vehicle door hinged to the vehicle body and a vehicle door driving device, wherein one end of a supporting rod 50 is connected with the vehicle body, and a driving piece 10, a transmission assembly 60 and a shell assembly 80 are respectively connected in the vehicle door.

In the door driving device and the automobile thereof, the driving piece 10, the transmission assembly 60 and the supporting rod 50 are arranged in the shell assembly 80 to form the whole body of the door driving device, and at least one part of the supporting rod 50 extends out of the shell assembly 80 for being connected with the automobile body so as to fix the door driving device on the automobile body. The transmission assembly 60 comprises a worm 61, a worm wheel 63, a transmission rod 62 and a transmission seat 64, the worm wheel 63 is fixedly connected to one end of the transmission rod 62, the worm 61 is in transmission connection with the worm wheel 63, the transmission rod 62 is in threaded transmission connection with the transmission seat 64, the transmission seat 64 is connected with one end, far away from a vehicle body, of the support rod 50, the driving piece 10 is in transmission connection with the worm 61, the worm 61 is driven to rotate through the driving piece 10, the worm 61 drives the transmission rod 62 to transmit through the worm wheel 63, the transmission seat 64 moves along the extending direction of the transmission rod 62, the transmission seat 64 drives the support rod 50 to transmit, and then the vehicle door rotates relative to the vehicle body to realize opening and closing actions of the vehicle door. The transmission assembly 60 is simple and reliable in structure, and can optimize the speed ratio and the lead of the transmission rod 62 and improve the static torque of the motor. Compared with a gear box mechanism, the motor speed reducing device can more effectively meet passive force requirements, and therefore a better silencing effect is achieved by reducing the motor speed. The housing assembly 80 includes a main housing 81 and a transmission housing 95, the main housing 81 is provided with a first transmission connection port 83, a second transmission connection port 84, and a sound insulation sealing cavity 82 and a transmission channel 94 which are isolated from each other, the first transmission connection port 83 and the second transmission connection port 84 are respectively communicated with the sound insulation sealing cavity 82, because the worm wheel 63 and the worm 61 are transmitted to become a main noise source, the worm wheel 63 and the worm 61 are installed in the sound insulation sealing cavity 82, the driving member 10 extends into the sound insulation sealing cavity 82 through the first transmission connection port 83 to be in transmission connection with the worm 61, and the driving member 10 is in sealing fit with the first transmission connection port 83 so as to realize the sealing of the first transmission connection port 83. At least one part of the transmission rod 62 is positioned in the sound insulation sealing cavity 82, the other part of the transmission rod 62 extends out to the transmission shell 95 through the second transmission connecting port 84, and the transmission rod 62 is in sealing connection with the second transmission connecting port 84 through the first sealing piece 86, so that a highly sealed sound insulation space is formed in the sound insulation sealing cavity 82, the purpose of effectively isolating the motion noise of the transmission assembly 60, particularly the transmission noise of the worm wheel 63 and the worm 61, and the silencing effect is effectively improved. Meanwhile, the waterproof and dustproof requirements are effectively met. The transmission rod 62 and the transmission seat 64 are arranged in the transmission shell 95, so that the transmission rod 62 and the transmission seat 64 can be effectively protected, and meanwhile, the silencing effect is improved. Meanwhile, the invention has the advantages of less parts of the whole structure, simple process and reliable performance, thereby reducing the production cost.

As one embodiment, as shown in fig. 2 to 3, the transmission rod 62 is a screw rod, the purchase cost is low, the transmission rod 62 is in threaded connection with the transmission seat 64, the assembly is simple, and the assembly efficiency is improved.

As one example, the driving body 13 is in transmission connection with the worm 61 through a spline, and the reliability of the transmission connection of the driving body 13 with the worm 61 is improved through the spline.

As one embodiment, the spline rubber sleeve is arranged inside the spline, the driving body 13 and the worm 61 are respectively in butt joint with the spline through the spline rubber sleeve, gaps between connecting positions of parts are eliminated through the spline rubber sleeve, shaking abnormal sound of the parts is avoided, noise in the operation process is eliminated, and the silencing effect is improved.

Further, as shown in fig. 1 to 3, the driving member 10 includes a driving housing 11, a driving body 13 and a driving seat 14, the driving seat 14 is provided with a driving channel 15 extending along a first direction, the driving channel 15 is communicated with a sound insulation sealing cavity 82 through a first transmission connection port 83, the driving housing 11 is provided with a driving cavity 12, the driving cavity 12 is communicated with the driving channel 15, the driving body 13 is installed in the driving cavity 12 and the driving channel 15, the driving body 13 is in transmission connection with the worm 61, and two ends of the driving seat 14 are respectively in sealing connection with the driving housing 11 and the main housing 81. The driving body 13 is installed in the driving shell 11 and the driving seat 14, and extends into the sound-proof sealing cavity 82 through the driving channel 15 to be in transmission connection with the worm 61, and two ends of the driving seat 14 are respectively in sealing connection with the driving shell 11 and the first transmission connection port 83 so as to further improve the sealing performance of the sound-proof sealing cavity 82.

As an embodiment, as shown in fig. 8 to 9, the upper end of the driving seat 14 protrudes upward to form a guiding portion, the guiding portion is mounted inside the driving housing 11, the outer periphery of the guiding portion is attached to the inner wall of the driving housing 11, and by setting the guiding portion, the mounting accuracy of the driving housing 11 is improved and the assembly efficiency is improved.

Further, as shown in fig. 7 to 9, the driving seat 14 is provided with a connecting guide groove 16, an upper sealing forming groove 17 and a lower sealing forming groove 18 which are arranged around the edge of the driving seat 14, the upper sealing forming groove 17 and the lower sealing forming groove 18 are respectively positioned at two ends of the driving seat 14, the connecting guide groove 16 is positioned at the outer side surface of the driving seat 14, two ends of the connecting guide groove 16 are respectively communicated with the upper sealing forming groove 17 and the lower sealing forming groove 18, the driving member 10 comprises a driving sealing member 19, the driving sealing member 19 comprises an upper sealing part 20 which is correspondingly arranged in shape with the upper sealing forming groove 17, a lower sealing part 21 which is correspondingly arranged in shape with the lower sealing forming groove 18, and a connecting sealing part 22 which is correspondingly arranged in shape with the connecting guide groove 16, the upper sealing part 20 is arranged on the upper sealing forming groove 17 and is respectively in sealing fit with the upper ends of the driving housing 11 and the driving seat 14, the lower sealing part 21 is respectively in sealing fit with the lower ends of the driving seat 14 and the first transmission 83, and the two ends of the connecting sealing part 22 are respectively connected with the upper sealing part 20 and the lower sealing part 21. The upper sealing forming groove 17 is connected with the lower sealing forming groove 18 through the connecting diversion groove 16 to form a forming groove body of the driving sealing piece 19, when the driving sealing piece 19 is manufactured, the sealing material in the upper sealing forming groove 17 is added into the forming groove body through the sealing material in a liquid form, flows into the lower sealing forming groove 18 along the connecting diversion groove 16, and is cooled to obtain the driving sealing piece 19 which is integrally formed, and the processing technology is simple. Wherein, the driving sealing member 19 comprises an upper sealing portion 20 and a lower sealing portion 21 which are connected through a connecting sealing portion 22 to form an integrated structure, so that the installation of the driving sealing member 19 is avoided, the assembly steps are reduced, and the assembly efficiency is improved. The driving seal 19 includes an upper seal portion 20 provided in a shape corresponding to the upper seal forming groove 17, a lower seal portion 21 provided in a shape corresponding to the lower seal forming groove 18, and a connection seal portion 22 provided in a shape corresponding to the connection guide groove 16. The driving sealing piece 19 is formed on the basis of the upper sealing forming groove 17, the lower sealing forming groove 18 and the connecting guide groove 16, so that the connection precision of the driving sealing piece 19 and the upper sealing forming groove 17, the lower sealing forming groove 18 and the connecting guide groove 16 is improved, the assembly difficulty caused by deformation after the driving sealing piece 19 is formed is reduced, and the assembly yield is improved. Wherein, connect guiding gutter 16 for the water conservancy diversion effect during processing, form the location effect after the shaping of drive sealing member 19, avoid the drive sealing member 19 to remove, simultaneously, connect sealing portion 20 and lower sealing portion 21 respectively through the connection sealing portion 22 that connects guiding gutter 16 formation, promote the whole structural stability of drive sealing member 19. The upper sealing part 20 is in butt sealing fit with the driving shell 11, the lower sealing part 21 is in butt sealing fit with the main shell 81 through the first transmission connecting port 83, the connection tightness between the driving seat 14 and the main shell 81 is improved, and meanwhile, the driving sealing piece 19 also has a buffering and damping effect.

Further, as shown in fig. 7 to 9, the driving seat 14 is provided with an anti-falling positioning groove 23, and the driving seal 19 includes an anti-falling positioning portion 9624 corresponding to the anti-falling positioning groove 23 in shape, and the anti-falling positioning portion 9624 is mounted on the anti-falling positioning groove 23;

the anti-falling positioning groove 23 is positioned at the upper end of the driving seat 14 and is communicated with the upper sealing forming groove 17, and the anti-falling positioning part 9624 is connected with the upper sealing part 20; and/or the number of the groups of groups,

the drop-preventing positioning groove 23 is located at the lower end of the driving seat 14 and is communicated with the lower seal forming groove 18, and the drop-preventing positioning portion 9624 is connected with the lower seal portion 21. The setting of anticreep location portion 9624 increases the area of contact of drive sealing element 19 and drive seat 14, prevents that drive sealing element 19 from taking off, further promotes packaging efficiency.

As one example, the driving seal 19 is made of a flexible sealing material.

Further, as shown in fig. 4 to 6 and 10 to 12, the driving member 10 includes a socket cover 27, a circuit board 31 and an electrical connection pin 32 for electrically connecting with the circuit board 31, the socket cover 27 is provided with a socket spacing cavity 28 and a plurality of socket holes 29 which are opened toward the driving seat 14, the socket cover 27 is provided with a positioning post 30 protruding toward the main housing 81, one side of the driving seat 14 extends outwards to form an electrical connection part 33, an electrical connection cavity 34 communicating with the driving channel 15 is provided in the electrical connection part 33, the electrical connection cavity 34 is provided with a first electrical connection port 35, one side of the main housing 81 extends outwards to form a positioning part 96, the positioning part 96 is provided with a first positioning hole 98 and a second positioning hole 99, the positioning post 30 is inserted into the first positioning hole 98, the lower end of the socket cover 27 is connected with the second positioning hole 99, the electrical connection part 33 and the positioning part 96 are mounted in the socket spacing cavity 28, the electrical connection pin 32 is mounted in the electrical connection cavity 34 and extends out of the socket hole 29 through the first connection port, and the circuit board 31 is mounted in the driving channel 15 and fixed to the driving seat 14. The positioning posts 30 are inserted into the first positioning holes 98 and connected with the lower ends of the insertion covers through the second positioning holes 99, so that the positioning of the socket covers 27 is realized, and the assembly alignment of a plurality of electric bolts and a plurality of socket holes 29 is avoided because the electric bolts are generally multiple, the assembly efficiency of the socket covers 27 with the main shell 81 and the driving seat 14 is further improved, and the assembly yield of the electric connecting bolts 32 is also improved. Meanwhile, since the positioning portion 96 and the electrical connection portion 33 are respectively inserted into the socket limiting cavity 28 to achieve connection through the socket cover 27, connection reliability of the driving seat 14 and the main housing 81 in the height direction and stability of the assembled structure are improved.

As one example, the plug cap is screwed to the main housing 81 through the second positioning hole 99.

As one embodiment, the outer peripheral surfaces of the positioning portion 96 and the electrical connection portion 33 respectively abut against the inner wall of the socket limiting cavity 28, so as to improve the connection reliability of the socket cover 27, the driving seat 14 and the main housing 81.

As one embodiment, the plugging cover is respectively clamped with the driving seat 14 and the main housing 81, so that the assembly operation is simplified, and the assembly efficiency is improved.

Further, as shown in fig. 4 to 9, the driving seat 14 includes a limiting post 25, the limiting post 25 is connected to the inner wall of the driving channel 15, a first limiting surface 26 is disposed at the lower end of the limiting post 25, a second limiting surface 97 is disposed at the upper end of the positioning portion 96, the upper end of the circuit board 31 is fixedly connected to the first limiting surface 26, the lower end of the circuit board 31 is abutted to the second limiting surface 97, and the limitation of the circuit board 31 in the height direction is achieved through the first limiting surface 26 and the second limiting surface 97, and meanwhile, the circuit board 31 is abutted to the second limiting surface 97, so that the installation stability of the circuit board 31 is improved.

As one example, the circuit board 31 is connected to the limit post 25 by a screw.

Further, as shown in fig. 10 to 12, the driving member 10 includes a second sealing member 36 mounted in the socket spacing cavity 28, the socket cover 27 is provided with a second sealing groove 39 and a socket cover forming interface 42, the second sealing groove 39 includes a sealing annular groove 40 and a connection positioning groove 41, the sealing annular groove 40 is disposed in the socket spacing cavity 28 and surrounds the edge of the socket spacing cavity 28, the connection positioning groove 41 is located at one side of the socket cover 27 facing away from the socket spacing cavity 28, the socket cover forming interface 42 is located at two opposite sides of the connection positioning groove 41, two opposite sides of the connection positioning groove 41 are communicated with the sealing ring groove 40 through the socket cover forming interface 42, the second sealing member 36 includes a second sealing ring 37 with a shape corresponding to the sealing ring groove 40 and a connection positioning portion 9638 with a shape corresponding to the connection positioning groove 41, two opposite sides of the connection positioning portion 9638 are respectively connected with the second sealing ring 37 through the socket cover forming interface 42, the second sealing ring 37 is mounted in the sealing ring groove 40, the connection positioning portion 9638 is mounted in the connection positioning groove 41, and the socket cover 27 is respectively connected with the positioning portion 96 and the electrical connection portion 33 through the second sealing member 36. When the second sealing piece 36 is formed, the sealing material in the sealing ring groove 40 flows into the connecting positioning groove 41 through the seat cover forming opening, solids are formed after the sealing material is cooled, the connecting positioning part 9638 is formed in the connecting positioning groove 41, the second sealing ring 37 is formed in the second sealing ring 37, the connecting positioning part 9638 is connected with the second sealing ring 37 through the seat cover forming opening to form the integrally formed second sealing piece 36, the seat cover forming opening realizes the connecting diversion effect before the second sealing piece 36 is formed, the second sealing piece 36 is limited in the height direction after the second sealing piece 36 is formed, meanwhile, the second sealing ring 37 and the connecting positioning part 9638 are integrally formed and are respectively positioned on two opposite surfaces of the seat cover 27, so that the second sealing ring 37 is connected to the seat cover 27, the falling loss is avoided, meanwhile, the second sealing piece 36 is directly formed on the seat cover 27, the assembly step is reduced, the assembly efficiency is improved, the connection difficulty of the second sealing piece 39 and the second sealing piece 36 is improved, the assembly yield is improved due to the fact that the second sealing piece 36 is deformed after the second sealing piece 36 is formed.

Further, as shown in fig. 3 and 13, the main housing 81 is provided with a third transmission connection port 85 opposite to the second transmission connection port 84, the housing assembly 80 includes a shock absorbing sealing member 87, the shock absorbing sealing member 87 includes a sealing cover 88, a sealing positioning cover 89 mounted on the third transmission connection port 85, and a buffer ring 92, the outer periphery of the sealing positioning cover 89 is provided with a buffer positioning groove 90 in a surrounding manner, the buffer ring 92 is mounted on the buffer positioning groove 90 and is in butt sealing fit with the third transmission connection port 85, and radial shock absorbing effect of the sealing positioning cover 89 is improved through the arrangement of the buffer ring 92. The sealed locating cover 89 is equipped with the installation through-hole 91, and the one end rotation of transfer line 62 is connected in the installation through-hole 91, has realized the location installation of transfer line 62 on main casing 81, and the one end that sealed locating cover 89 deviates from transfer line 62 is equipped with the block groove 93, and sealed cover 88 is installed in block groove 93 and sealed installation through-hole 91, realizes the sealed of sealed locating cover 89, prevents the noise in the sealed chamber 82 of giving sound insulation excessive.

As one example, the shock absorbing seal 87 includes a lock nut that fits within the cap groove 93 and is threadably coupled to the end of the drive rod 62. The lock nut is greater than the installation through hole 91 in the diameter, and lock nut passes through sealed lid 88 and seals in the lid groove 93, and lock nut's setting avoids rocking and the drunkenness of transfer line 62 in the use, promotes transmission assembly 60 steady operation, promotes silence effect.

As one embodiment, the supporting rod 50 is provided with a limit protection pin 51 for preventing the transmission seat 64 from directly colliding with the main housing 81, the limit protection pin 51 is located between the transmission seat 64 and the main housing 81, the main housing 81 is internally provided with a metal reinforcing member 70 arranged at a position corresponding to the limit protection pin 51, when the limit protection pin 51 collides with the main housing 81, the metal reinforcing member 70 directly or indirectly collides with the metal reinforcing member 70, the metal reinforcing member 70 has high hardness, the impact bearing strength of the main housing 81 is improved, and further the main housing 81 is prevented from being damaged due to the collision.

Further, as shown in fig. 14 to 15, the transmission seat 64 includes a metal reinforcement 65 and a plastic sheath 68, the metal reinforcement 65 includes a metal connection member 67 extending along a first direction and a transmission tube 66 extending along a second direction, the transmission tube 66 is provided with a transmission hole communicating along the second direction, two ends of the metal connection member 67 are respectively in transmission connection with the transmission tube 66 and the support rod 50, the plastic sheath 68 is coated on an outer surface of the metal reinforcement 65 and extends into the transmission hole to form a plastic thread transmission surface 69, and the thread transmission surface is in transmission connection with the transmission rod 62. The plastic thread transmission surface 69 is in transmission connection with the metal transmission rod 62, so that transmission noise can be reduced. Wherein, the metalwork is connected with the bracing piece 50, promotes joint strength. The metal reinforcement 65 is disposed in the plastic sheath 68 to enhance the impact strength of the transmission seat 64.

Further, as shown in fig. 16, a gap is formed between the outer contour of the plastic wrap 68 and the inner wall of the transmission housing 95, so that the contact area between the plastic wrap 68 and the transmission housing 95 is reduced, and the impact abnormal sound between the contact surfaces is reduced. The outer contour of plastic sheath 68 protrudes towards drive casing 95 to form spacing muscle 71, spacing muscle 71 and drive casing 95 butt, on the basis of reducing the contact surface between plastic sheath 68 and the drive casing 95, through spacing muscle 71 and drive casing 95 butt, make spacing muscle 71 and drive casing 95 pass through the point or the line contact, it is spacing to realize the global to be connected between plastic sheath 68 and the drive casing 95, avoid taking place to rock the abnormal sound that produces in the transmission process, further promote silence effect. The plastic wrap 68 is provided with the spacing groove 72, and the transmission casing 95 forms spacing lug 73 towards plastic wrap 68 protrusion, spacing lug 73 install in spacing groove 72, and spacing groove 72 extends along the extending direction of transfer line 62, and the outer peripheral face of spacing lug 73 supports with the inner wall of spacing groove 72 and pastes, has realized avoiding plastic wrap 68 and transmission casing 95 to shift in the direction of height, has promoted silence effect and has also guaranteed the transmission stability of plastic wrap 68 simultaneously. The plastic sheath 68 is provided with a sheath positioning hole, the interior of the sheath positioning hole is provided with a damping plastic part 74 perpendicular to the extending direction of the transmission rod 62, the damping plastic part 74 is abutted with the inner wall of the transmission shell 95, the damping plastic part 74 and the inner wall of the transmission shell 95 are in a micro interference state, the plastic sheath 68 and the transmission shell 95 slide in the micro interference state, noise generated by the plastic sheath 68 and the transmission shell 95 is avoided, and the damping plastic part 74 absorbs vibration of the plastic sheath 68 in the transmission process, so that transmission noise is reduced.

In summary, the embodiment of the invention provides a door driving device and an automobile thereof, wherein a driving member 10, a transmission assembly 60 and a supporting rod 50 are installed in a housing assembly 80 to form the whole of the door driving device, and at least one part of the supporting rod 50 extends out of the housing assembly 80 for being connected with a vehicle body so as to fix the door driving device on the vehicle body. The transmission assembly 60 comprises a worm 61, a worm wheel 63, a transmission rod 62 and a transmission seat 64, the worm wheel 63 is fixedly connected to one end of the transmission rod 62, the worm 61 is in transmission connection with the worm wheel 63, the transmission rod 62 is in threaded transmission connection with the transmission seat 64, the transmission seat 64 is connected with one end, far away from a vehicle body, of the support rod 50, the driving piece 10 is in transmission connection with the worm 61, the worm 61 is driven to rotate through the driving piece 10, the worm 61 drives the transmission rod 62 to transmit through the worm wheel 63, the transmission seat 64 moves along the extending direction of the transmission rod 62, the transmission seat 64 drives the support rod 50 to transmit, and then the vehicle door rotates relative to the vehicle body to realize opening and closing actions of the vehicle door. The transmission assembly 60 is simple and reliable in structure, and can optimize the speed ratio and the lead of the transmission rod 62 and improve the static torque of the motor. Compared with a gear box mechanism, the motor speed reducing device can more effectively meet passive force requirements, and therefore a better silencing effect is achieved by reducing the motor speed. The housing assembly 80 includes a main housing 81 and a transmission housing 95, the main housing 81 is provided with a first transmission connection port 83, a second transmission connection port 84, and a sound insulation sealing cavity 82 and a transmission channel 94 which are isolated from each other, the first transmission connection port 83 and the second transmission connection port 84 are respectively communicated with the sound insulation sealing cavity 82, because the worm wheel 63 and the worm 61 are transmitted to become a main noise source, the worm wheel 63 and the worm 61 are installed in the sound insulation sealing cavity 82, the driving member 10 extends into the sound insulation sealing cavity 82 through the first transmission connection port 83 to be in transmission connection with the worm 61, and the driving member 10 is in sealing fit with the first transmission connection port 83 so as to realize the sealing of the first transmission connection port 83. At least one part of the transmission rod 62 is positioned in the sound insulation sealing cavity 82, the other part of the transmission rod 62 extends out to the transmission shell 95 through the second transmission connecting port 84, and the transmission rod 62 is in sealing connection with the second transmission connecting port 84 through the first sealing piece 86, so that a highly sealed sound insulation space is formed in the sound insulation sealing cavity 82, the purpose of effectively isolating the motion noise of the transmission assembly 60, particularly the transmission noise of the worm wheel 63 and the worm 61, and the silencing effect is effectively improved. Meanwhile, the waterproof and dustproof requirements are effectively met. The transmission rod 62 and the transmission seat 64 are arranged in the transmission shell 95, so that the transmission rod 62 and the transmission seat 64 can be effectively protected, and meanwhile, the silencing effect is improved. Meanwhile, the invention has the advantages of less parts of the whole structure, simple process and reliable performance, thereby reducing the production cost.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims (11)

1. A vehicle door drive device, characterized in that: comprises a driving piece, a transmission component, a shell component and a supporting rod used for being connected with a vehicle body;

the transmission assembly comprises a worm extending along a first direction, a transmission rod extending along a second direction, a worm wheel and a transmission seat, wherein the worm wheel is fixed on the transmission rod;

the shell assembly comprises a main shell and a transmission shell used for being connected with the main shell, the main shell comprises a first sealing element, the main shell is provided with a first transmission connecting port, a second transmission connecting port, a sound insulation sealing cavity and a transmission channel, the sound insulation sealing cavity and the transmission channel are isolated from each other, the first transmission connecting port and the second transmission connecting port are respectively communicated with the sound insulation sealing cavity, a driving element stretches into the sound insulation sealing cavity through the first transmission connecting port, the driving element is in sealing fit with the first transmission connecting port, a worm wheel and a worm are located in the sound insulation sealing cavity, the worm is respectively connected with the driving element and the worm wheel in a transmission mode, one end of a transmission rod stretches into the sound insulation sealing cavity and is fixed to the main shell, the other end of the transmission rod is in sealing fit with the second transmission connecting port through the first sealing element, the other end of the transmission rod stretches into the transmission shell, the transmission seat is located in the transmission housing and is in transmission connection with the transmission rod, and the support rod stretches into the transmission seat through the transmission channel and is in transmission connection with the transmission seat.

2. The door driving device according to claim 1, wherein: the driving piece comprises a driving shell, a driving body and a driving seat, wherein the driving seat is provided with a driving channel extending along a first direction, the driving channel is communicated with the sound insulation sealing cavity through a first transmission connecting port, the driving shell is provided with a driving cavity, the driving cavity is communicated with the driving channel, the driving body is installed in the driving cavity and the driving channel, the driving body is connected with the worm in a transmission manner, and two ends of the driving seat are respectively connected with the driving shell and the main shell in a sealing manner.

3. The door driving device according to claim 2, characterized in that: the driving seat is provided with a connecting diversion trench and an upper sealing forming trench and a lower sealing forming trench which are arranged around the edge of the driving seat, the upper sealing forming trench and the lower sealing forming trench are respectively positioned at two ends of the driving seat, the connecting diversion trench is positioned at the outer side surface of the driving seat, two ends of the connecting diversion trench are respectively communicated with the upper sealing forming trench and the lower sealing forming trench, the driving piece comprises a driving sealing piece, the driving sealing piece comprises an upper sealing part, a lower sealing part and a connecting sealing part, the upper sealing part is correspondingly arranged on the upper sealing forming trench, the lower sealing part is correspondingly arranged on the lower sealing forming trench, the connecting sealing part is correspondingly arranged on the connecting diversion trench, the upper sealing part is arranged on the upper sealing forming trench and is respectively in sealing fit with the upper end of the driving housing and the upper end of the driving seat, the lower sealing part is respectively in sealing fit with the lower end of the driving seat and the first transmission connecting port, and the two ends of the connecting sealing part are respectively connected with the upper sealing part and the lower sealing part.

4. A door drive apparatus according to claim 3, wherein: the driving seat is provided with an anti-falling positioning groove, the driving sealing piece comprises an anti-falling positioning part which is correspondingly arranged with the anti-falling positioning groove in shape, and the anti-falling positioning part is arranged in the anti-falling positioning groove;

the anti-falling positioning groove is positioned at the upper end of the driving seat and is communicated with the upper sealing forming groove, and the anti-falling positioning part is connected with the upper sealing part; and/or the number of the groups of groups,

the anti-falling positioning groove is positioned at the lower end of the driving seat and is communicated with the lower sealing forming groove, and the anti-falling positioning part is connected with the lower sealing part.

5. The door driving device according to claim 2, characterized in that: the driving piece comprises a socket cover, a circuit board and an electric connection bolt used for being electrically connected with the circuit board, wherein the socket cover is provided with a socket limiting cavity and a plurality of socket holes, the opening of the socket limiting cavity faces the driving seat, the socket cover is provided with a positioning column protruding towards the main shell, one side of the driving seat outwards extends to form an electric connection part, an electric connection cavity communicated with the driving channel is arranged in the electric connection part, the electric connection cavity is provided with a first electric connection port, one side of the main shell outwards extends to form a positioning part, the positioning part is provided with a first positioning hole and a second positioning hole, the positioning column is inserted into the first positioning hole, the lower end of the socket cover is connected with the second positioning hole, the electric connection part is installed in the socket limiting cavity, and the electric connection bolt is installed in the electric connection cavity and extends out of the socket holes through the first electric connection port.

6. The door drive device according to claim 5, wherein: the driving seat comprises a limiting column, the limiting column is connected to the inner wall of the driving channel, a first limiting surface is arranged at the lower end of the limiting column, a second limiting surface is arranged at the upper end of the positioning part, the upper end of the circuit board is fixedly connected with the first limiting surface, and the lower end of the circuit board is in butt joint with the second limiting surface.

7. The door drive device according to claim 5, wherein: the driving piece is including installing in the second sealing member in the spacing chamber of socket, the socket lid is equipped with second seal groove and socket lid shaping interface, the second seal groove includes sealed ring channel and connection constant head tank, the sealing ring groove is located in the spacing intracavity of socket and encircle the marginal setting in the spacing chamber of socket, the connection constant head tank is located the socket lid is dorsad the spacing chamber of socket one side, the shaping interface of socket lid is located the relative both sides of connection constant head tank, the relative both sides of connection constant head tank pass through the socket lid shaping interface and sealing ring groove intercommunication, the second sealing member include the shape with the shape of the second sealing ring that the sealing ring groove corresponds the setting with the connection constant head tank corresponds the connection constant head tank that sets up, the relative both sides of connection constant head tank pass through respectively socket lid shaping interface and second sealing ring connection, the second sealing ring install in the sealing ring groove, the connection constant head tank install in the socket lid pass through the second sealing member respectively with constant head tank and electric connection portion sealing connection.

8. The door driving device according to claim 1, wherein: the main casing is equipped with the relative third transmission connector that sets up of second transmission connector, the casing subassembly includes shock attenuation sealing member, shock attenuation sealing member include sealed lid, install in the sealed locating cover and the buffer circle of third transmission connector, the periphery of sealed locating cover encircle and be provided with the buffering constant head tank, the buffer circle install in the buffering constant head tank and with the sealed cooperation of third transmission connector butt, sealed locating cover is equipped with the installation through-hole, the one end rotation of transfer line connect in the installation through-hole, sealed locating cover deviate from the one end of transfer line is equipped with the block groove, sealed install in the block groove is sealed the installation through-hole.

9. The door driving device according to claim 1, wherein: the transmission seat comprises a metal reinforcing part and a plastic sheath, the metal reinforcing part comprises a metal connecting part extending along a first direction and a transmission barrel extending along a second direction, the transmission barrel is provided with a transmission hole communicated along the second direction, two ends of the metal connecting part are respectively connected with the transmission barrel and the support rod in a transmission manner, and the plastic sheath is coated on the outer surface of the metal reinforcing part and extends into the transmission hole to form a plastic thread transmission surface which is in transmission connection with the transmission rod.

10. The door driving device according to claim 9, wherein: the plastic rubber sleeve is provided with a limiting groove, the transmission shell protrudes towards the plastic rubber sleeve to form a limiting lug, and the limiting lug is mounted in the limiting groove.

11. An automobile, characterized in that: the vehicle door driving device comprises a vehicle body, a vehicle door hinged to the vehicle body and the vehicle door driving device according to any one of claims 1-10, wherein one end of the supporting rod is connected with the vehicle body, and the driving piece, the transmission assembly and the shell assembly are respectively connected in the vehicle door.