Actuator, vehicle door system and vehicle

Abstract

The invention discloses an actuator, a vehicle door system and a vehicle. The actuator comprises a driving assembly, a transmission assembly, a damping assembly and an execution assembly, the driving assembly comprises a driving shaft, the transmission assembly comprises a transmission shaft, the transmission shaft is in transmission connection with the driving shaft and is perpendicular to the driving shaft, and the damping assembly is arranged in the length direction of the driving shaft and is connected with the end, close to the driving shaft, of the transmission shaft; the execution assembly comprises a main shaft and a nut push pipe in threaded connection with the main shaft, the main shaft is in transmission connection with the transmission shaft and is parallel to the driving shaft, and rotating motion of the main shaft can be converted into linear reciprocating motion of the nut push pipe. In this way, the actuator has the advantages of being short in fixed length section, small in size and high in adaptability.

Description

Technical Field

[0001] The present application relates to the field of automobile accessories, and in particular to an actuator, a door system and a vehicle. Background Art

[0002] With the development of automobile intelligence and comfort, many cars are equipped with electric tailgate functions. Electric tailgates are generally opened and closed by electric struts. Current electric struts include electric struts with a linear layout, electric struts with an intersecting layout, and electric struts with a parallel layout. Electric struts with a parallel layout are widely used because they require a relatively small installation space. However, the existing electric struts with a parallel layout still have a relatively long fixed length section and a large volume, resulting in reduced adaptability. Summary of the invention

[0003] The present application provides an actuator, a door system and a vehicle, which can solve the technical problem in the prior art that the parallel-layout electric strut has a long fixed length section and a large volume, resulting in reduced adaptability.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an actuator, which includes: a driving assembly, including a driving shaft; a transmission assembly, including a transmission shaft, which is transmission-connected to the driving shaft and perpendicular to the driving shaft; a damping assembly, which is arranged along the length direction of the driving shaft and connected to one end of the transmission shaft close to the driving shaft; an execution assembly, including a main shaft and a nut push tube threadedly connected to the main shaft, which is transmission-connected to the transmission shaft and parallel to the driving shaft, wherein the rotational motion of the main shaft can be converted into a linear reciprocating motion of the nut push tube.

[0005] In some embodiments, the transmission assembly also includes a first bevel gear and a second bevel gear, the first bevel gear is arranged on the drive shaft, the second bevel gear is arranged on the transmission shaft, and the first bevel gear is meshed with the second bevel gear; the transmission assembly also includes a transmission wheel, the transmission wheel has a worm gear part, the transmission shaft has a worm gear part, and the worm gear part of the transmission shaft is meshed with the worm gear part of the transmission wheel; one end of the main shaft is passed through the transmission wheel and is connected to the transmission wheel, wherein the transmission wheel can drive the main shaft to rotate; the second bevel gear is located between the worm gear part and the damping assembly.

[0006] In some embodiments, a transmission ratio between the first bevel gear and the second bevel gear is 1:1.

[0007] In some embodiments, the transmission assembly further includes an adapter, which is disposed between the transmission wheel and the main shaft, wherein an outer wall of the adapter is spline-connected to the transmission wheel, and an inner wall of the adapter is spline-connected to one end of the main shaft.

[0008] In some embodiments, the adapter is a flexible adapter.

[0009] In some embodiments, the outer wall of the adapter has external splines, the inner wall of the adapter has internal splines, and the width of the external splines is greater than the width of the internal splines.

[0010] In some embodiments, the external splines are rectangular splines and the internal splines are triangular splines.

[0011] In some embodiments, the actuator further comprises a clearance elimination assembly, wherein the clearance elimination assembly is disposed at an end of the transmission shaft away from the damping assembly, and the clearance elimination assembly is used to automatically eliminate the meshing clearance between the worm portion and the worm wheel portion.

[0012] In some embodiments, the actuator further includes a first bearing, wherein the first bearing is sleeved on the transmission shaft and located between the worm portion and the second bevel gear.

[0013] In some embodiments, the actuator also includes a second bearing, which is sleeved on the main shaft and located between the transmission wheel and the nut push tube; the actuator also includes a third bearing, which is sleeved on one end of the transmission wheel and is farther away from the second bearing relative to the worm gear part.

[0014] In some embodiments, the actuator further includes a housing assembly, the housing assembly is provided with a receiving cavity, and a partial structure of the actuator assembly, the driving assembly, the transmission assembly and the damping assembly are arranged in the receiving cavity.

[0015] In some embodiments, the actuator also includes a first ball and socket connection member and a second ball and socket connection member, the first ball and socket connection member is arranged along the length direction of the main shaft and is spaced opposite to an end of the main shaft close to the transmission shaft, the second ball and socket connection member is arranged along the length direction of the main shaft and is fixedly connected to an end of the nut push tube away from the transmission shaft, and the partial structure of the first ball and socket connection member close to the main shaft is fixed in the housing assembly.

[0016] In some embodiments, the actuator also includes a guide tube, at least part of the structure of the nut push tube is located in the guide tube, the guide tube is used to guide the linear reciprocating motion of the nut push tube, and one end of the guide tube close to the transmission shaft is fixed in the housing assembly.

[0017] In some embodiments, in the length direction of the main axis, the distance between the guide tube and the center axis of the ball socket of the first ball socket connector is greater than or equal to 50 mm and less than or equal to 60 mm.

[0018] In some embodiments, in the length direction of the transmission shaft, the distance between the central axis of the active shaft and the central axis of the drive shaft is greater than or equal to 35 mm and less than or equal to 45 mm.

[0019] Another technical solution adopted by the present application is: to provide a vehicle door system, the vehicle door system comprising any one of the actuators described above:.

[0020] Another technical solution adopted by the present application is: providing a vehicle, the vehicle comprising the door system described above.

[0021] The beneficial effects of the present application are as follows: Different from the prior art, the actuator provided by the present application includes: a driving assembly including a driving shaft; a transmission assembly including a transmission shaft, the transmission shaft is connected to the driving shaft in a transmission manner and the transmission shaft is perpendicular to the driving shaft; a damping assembly arranged along the length direction of the driving shaft and connected to one end of the transmission shaft close to the driving shaft; an execution assembly including a main shaft and a nut push tube threaded with the main shaft, the main shaft is connected to the transmission shaft in a transmission manner and the main shaft is parallel to the driving shaft, wherein the rotational motion of the main shaft can be converted into the linear reciprocating motion of the nut push tube. In the technical solution of the present application, the main shaft is parallel to the driving shaft, so that the overall height of the actuator is reduced; further, the transmission shaft is perpendicular to the driving shaft, the damping assembly is arranged along the length direction of the driving shaft and connected to one end of the transmission shaft close to the driving shaft, so that the fixed length section of the actuator becomes shorter. In this way, the actuator has the advantages of short fixed length section, small volume and high adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic diagram of the structure of an actuator provided in some embodiments of the present application;

[0024] Figure 2 yes Figure 1 A cross-sectional view of the actuator at AA;

[0025] Figure 3is an exploded schematic diagram of an actuator provided in some embodiments of the present application;

[0026] Figure 4 is an exploded schematic diagram of an actuator provided in some other embodiments of the present application;

[0027] Figure 5 is a schematic diagram of the structure of a housing assembly provided in some embodiments of the present application;

[0028] Figure 6 is an exploded schematic diagram of a housing assembly provided in some embodiments of the present application;

[0029] Figure 7 is a schematic structural diagram of a first housing provided in some embodiments of the present application;

[0030] Figure 8 is a schematic structural diagram of a second housing provided in some embodiments of the present application;

[0031] Fig. 9 is a schematic diagram of the structure of the adapter provided in some embodiments of the present application;

[0032] Fig.10 is a schematic diagram of the structure of a gap elimination assembly provided in some embodiments of the present application;

[0033] Fig.11 is an exploded schematic diagram of a gap elimination assembly provided in some embodiments of the present application;

[0034] Fig.12 is a schematic diagram of the structure of a door system provided by some embodiments of the present application;

[0035] Fig.13 It is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.

[0036] Description of reference numerals: 100-actuator, 110-driving assembly, 111-driving shaft, 120-transmission assembly, 121-transmission shaft, 1211-worm part, 122-first bevel gear, 123-second bevel gear, 124-transmission wheel, 1241-worm wheel part, 125-adapter, 1251-external spline, 1252-internal spline, 126-first bearing, 127-third bearing, 130-damping assembly , 140-actuator assembly, 141-spindle, 1411-screw part, 142-nut push tube, 1421-nut part, 143-second bearing, 150-gap elimination assembly, 151-mounting seat, 1511-accommodating hole, 1512-supporting hole, 1513-elastic block, 152-second coil spring, 160-first coil spring, 170-housing assembly, 171-accommodating chamber, 1711-transmission chamber, 1711a-first accommodating cavity, 1711b-second accommodating cavity, 1711c-rib, 1712-driving cavity, 1713-first clamping hole, 1714-second clamping hole, 1715-limiting hole, 172-first shell, 1721-first groove, 1722-second groove, 1723-fifth groove, 1724-sixth groove, 173-second shell, 1731-third groove, 1732-fourth groove, 1733-the seventh groove, 1734-the eighth groove, 174-the first retaining frame, 1751-the sealing strip, 1752-the sealing groove, 1761-the positioning pin, 1762-the positioning hole, 1771-the first supporting block, 1772-the second supporting block, 181-the first ball and socket connecting piece, 182-the second ball and socket connecting piece, 183-the second retaining frame, 190-the guide tube, 1000-the door system, 10000-the vehicle. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0038] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] The actuator provided by the present application includes: a driving assembly including a driving shaft; a transmission assembly including a transmission shaft, the transmission shaft is connected to the driving shaft in a transmission manner and the transmission shaft is perpendicular to the driving shaft; a damping assembly is arranged along the length direction of the driving shaft and connected to one end of the transmission shaft close to the driving shaft; an execution assembly includes a main shaft and a nut push tube threaded with the main shaft, the main shaft is connected to the transmission shaft in a transmission manner and the main shaft is parallel to the driving shaft, wherein the rotational motion of the main shaft can be converted into the linear reciprocating motion of the nut push tube. In the technical solution of the present application, the main shaft is parallel to the driving shaft, so that the overall height of the actuator is reduced; further, the transmission shaft is perpendicular to the driving shaft, the damping assembly is arranged along the length direction of the driving shaft and connected to one end of the transmission shaft close to the driving shaft, so that the fixed length section of the actuator becomes shorter. In this way, the actuator has the advantages of short fixed length, small volume and high adaptability.

[0041] Please refer to Figure 1-Figure 4 , Figure 1 is a schematic diagram of the structure of an actuator provided in some embodiments of the present application, Figure 2 yes Figure 1 The cross-sectional view of the actuator at AA, Figure 3 is an exploded schematic diagram of an actuator provided in some embodiments of the present application, Figure 4 1 is a schematic diagram of an actuator provided in some other embodiments of the present application. The actuator 100 provided in the present application may include but is not limited to a drive assembly 110, a transmission assembly 120, a damping assembly 130 and an actuator 140. The drive assembly 110 is used to provide a driving torque. The transmission assembly 120 is used to transmit the driving torque output by the drive assembly 110 to the actuator 140. The actuator 140 is used to convert the driving torque output by the drive assembly 110 into a thrust or a pull force to drive the external connection structure to perform a specific action. The damping assembly 130 is used to provide braking damping to the drive assembly 110, the transmission assembly 120 or the actuator 140 so that the actuator 140 can maintain a specific stroke or action. In this embodiment, the external connection structure is the tailgate of the vehicle, and the actuator 140 can open the tailgate relative to the vehicle body when pushing the tailgate, and can close the tailgate relative to the vehicle body when pulling the tailgate. The damping assembly 130 can keep the tailgate suspended, thereby ensuring the safety of use and avoiding the occurrence of safety accidents caused by the accidental fall of the tailgate.

[0042] Further, the driving assembly 110 may include but is not limited to the driving shaft 111. The transmission assembly 120 may include but is not limited to the transmission shaft 121. The transmission shaft 121 is in transmission connection with the driving shaft 111 and the transmission shaft 121 is perpendicular to the driving shaft 111. The damping assembly 130 is arranged along the length direction of the driving shaft 111 and is connected to one end of the transmission shaft 121 close to the driving shaft 111 to provide braking damping to the transmission shaft 121. The actuator assembly 140 may include but is not limited to the main shaft 141 and the nut push tube 142 screwed to the main shaft 141. The main shaft 141 has a screw portion 1411, and the nut push tube 142 has a nut portion 1421, and the nut portion 1421 is screwed to the screw portion 1411, so that the nut push tube 142 is screwed to the main shaft 141. The main shaft 141 is in transmission connection with the transmission shaft 121 and the main shaft 141 is parallel to the driving shaft 111. The driving torque of the driving shaft 111 is transmitted to the main shaft 141 through the transmission shaft 121, so that the main shaft 141 rotates, and then the nut push tube 142 screwed to the main shaft 141 performs linear reciprocating motion. That is, the rotational motion of the main shaft 141 can be converted into the linear reciprocating motion of the nut push tube 142. The length direction of the driving shaft 111 refers to the axial direction of the driving shaft 111.

[0043] It can be understood that the parallel arrangement of the main shaft 141 and the drive shaft 111 can make the overall length of the actuator 100 shorter than that of the main shaft 141 and the drive shaft 111 arranged in the same straight line; the parallel arrangement of the main shaft 141 and the drive shaft 111 can make the overall height of the actuator 100 lower than that of the main shaft 141 and the drive shaft 111 arranged intersectingly; therefore, the parallel arrangement of the actuator 100 provided in the present application has better spatial arrangement performance than that of the linear arrangement of the actuator or the intersecting arrangement of the actuator, and can be adapted to more vehicle models. Among them, the overall height of the actuator 100 refers to Figure 1 The length of the space occupied by the actuator 100 in the Z-axis direction (excluding the lead wires of the driving component 110).

[0044] Specifically, in the length direction of the transmission shaft 121, the distance between the central axis of the main shaft 141 and the central axis of the drive shaft 111 is greater than or equal to 35 mm and less than or equal to 45 mm. Specifically, the distance between the central axis of the main shaft 141 and the central axis of the drive shaft 111 can be 35 mm, 35.6 mm, 36.8 mm, 37.2 mm, 37.9 mm, 38.6 mm, 39 mm, 39.8 mm, 40.5 mm, 41.1 mm, 41.8 mm, 42.7 mm, 43.5 mm, 44.3 mm and 45 mm. In this embodiment, the distance between the central axis of the main shaft 141 and the central axis of the drive shaft 111 is 42.21 mm. Among them, the length direction of the transmission shaft 121 refers to the axial direction of the transmission shaft 121.

[0045] It can be understood that the transmission shaft 121 is perpendicular to the drive shaft 111, so that the damping assembly 130 can be arranged along the length direction of the drive shaft 111 and connected to the end of the transmission shaft 121 close to the drive shaft 111. By connecting the damping assembly 130 to the end of the transmission shaft 121 close to the drive shaft 111, the fixed length section of the actuator 100 along the length direction of the main shaft 141 is shorter than the fixed length section of the damping assembly connected to the main shaft, so that when the overall length of the actuator 100 remains unchanged, the nut push tube 142 can be designed with a larger stroke, and then when the installation space is fixed, the actuator 100 can make the vehicle tailgate have a larger opening angle range to adapt to the needs of different usage scenarios or different vehicle models. Among them, the length direction of the main shaft 141 refers to the axial direction of the main shaft 141. The fixed length section refers to the length direction of the main shaft 141 ( Figure 1 In the Y-axis direction), the distance between the position of the nut push tube 142 when it is in a fully retracted state and the center axis of the ball socket of the first ball socket connector 181 can be replaced by the distance between the guide tube 190 and the center axis of the ball socket of the first ball socket connector 181 in the present application.

[0046] Optionally, the driving assembly 110 may be an electric motor. In this embodiment, the driving shaft 111 is an output shaft of the motor.

[0047] Optionally, the damping assembly 130 may be a mechanical friction damper, wherein the damping assembly 130 may be adapted and adjusted according to the braking damping required by the actuator 100 .

[0048] Further, the transmission assembly 120 also includes a first bevel gear 122, a second bevel gear 123 and a transmission wheel 124. The first bevel gear 122 is arranged on the drive shaft 111, and the second bevel gear 123 is arranged on the transmission shaft 121. The first bevel gear 122 is meshed with the second bevel gear 123, so that the transmission shaft 121 is transmission-connected with the drive shaft 111 and the transmission shaft 121 is perpendicular to the drive shaft 111. The transmission wheel 124 is transmission-connected with the transmission shaft 121. One end of the main shaft 141 is penetrated by the transmission wheel 124 and is transmission-connected with the transmission wheel 124, so that the transmission wheel 124 can drive the main shaft 141 to rotate. Specifically, the transmission wheel 124 has a worm gear part 1241, and the transmission shaft 121 has a worm part 1211, and the worm gear part 1241 is meshed with the worm part 1211 to realize the transmission connection between the transmission wheel 124 and the transmission shaft 121. The second bevel gear 123 is located between the worm portion 1241 and the damping assembly 130 .

[0049] In this embodiment, due to the reverse self-locking function of the worm wheel part 1241 and the worm part 1211, the damping assembly 130 can achieve the required braking damping inside the actuator 100 with fewer friction plates, thereby making the volume of the damping assembly 130 smaller.

[0050] Furthermore, since there are fewer friction plates in the damping assembly 130, the resistance torque applied by the damping assembly 130 to the transmission shaft 121 is smaller. Therefore, the transmission ratio of the first bevel gear 122 to the second bevel gear 123 can be 1:1, so as to reduce the space occupied by the bevel gear transmission, improve the transmission efficiency, reduce energy loss, and thus more efficiently and stably transmit the driving force from the drive shaft 111 to the transmission shaft 121.

[0051] Further, the actuator 100 also includes a first bearing 126, a second bearing 143 and a third bearing 127. The first bearing 126 is sleeved on the transmission shaft 121 and is located between the worm part 1211 and the second bevel gear 123 to provide radial support for the transmission shaft 121, ensuring that the transmission shaft 121 does not have excessive radial deviation when rotating, and reducing the friction and wear of the transmission shaft 121 during the rotation process. The second bearing 143 is sleeved on the main shaft 141 and is located between the transmission wheel 124 and the nut push tube 142 to provide radial support for the main shaft 141. The third bearing 127 is sleeved on one end of the transmission wheel 124 and is further away from the second bearing 143 relative to the worm wheel part 1241 to provide additional radial support for the transmission wheel 124 to ensure the stability of the transmission wheel 124 during the transmission process.

[0052] Furthermore, the actuator 100 also includes a housing assembly 170, a first ball-and-socket connector 181 and a second ball-and-socket connector 182. The housing assembly 170 is provided with a housing chamber 171. Part of the structure of the actuator assembly 140, the drive assembly 110, the transmission assembly 120 and the damping assembly 130 are arranged in the housing chamber 171. The first ball-and-socket connector 181 is arranged along the length direction of the main shaft 141 and is spaced opposite to one end of the main shaft 141 close to the transmission shaft 121. The second ball-and-socket connector 182 is arranged along the length direction of the main shaft 141 and is fixedly connected to one end of the nut push tube 142 away from the transmission shaft 121 (that is, one end of the nut push tube 142 away from the first ball-and-socket connector 181). Part of the structure of the first ball-and-socket connector 181 close to the main shaft 141 is fixed in the housing assembly 170. Among them, one of the first ball socket connector 181 and the second ball socket connector 182 is used to connect with the door ball, and the other of the first ball socket connector 181 and the second ball socket connector 182 is used to connect with the vehicle body ball.

[0053] Furthermore, the actuator 100 further includes a guide tube 190. At least part of the structure of the nut push tube 142 is located in the guide tube 190. The guide tube 190 is used to guide the linear reciprocating motion of the nut push tube 142. One end of the guide tube 190 close to the transmission shaft 121 is fixed in the housing assembly 170.

[0054] Further, in the length direction of the main shaft 141, the distance between the guide tube 190 and the ball socket center axis of the first ball socket connector 181 is greater than or equal to 50 mm and less than or equal to 60 mm. Specifically, the distance between the guide tube 190 and the ball socket center axis of the first ball socket connector 181 can be 50 mm, 51 mm, 52 mm, 53 mm, 54 mm, 55 mm, 56 mm, 57 mm, 58 mm, 59 mm and 60 mm. In this embodiment, the distance between the guide tube 190 and the ball socket center axis of the first ball socket connector 181 is 53.7 mm.

[0055] Please refer to Figure 1-Figure 4 and Fig. 9 , Fig. 9 1 is a schematic diagram of the structure of the adapter provided in some embodiments of the present application. The transmission assembly 120 also includes an adapter 125. The adapter 125 is arranged between the transmission wheel 124 and the main shaft 141 to protect the main shaft 141. The outer wall of the adapter 125 is spline-connected to the transmission wheel 124. The inner wall of the adapter 125 is spline-connected to one end of the main shaft 141. Specifically, the outer wall of the adapter 125 has an outer spline 1251, and the inner wall of the adapter 125 has an inner spline 1252. The width of the outer spline 1251 is greater than the width of the inner spline 1252.

[0056] Optionally, the outer spline 1251 may be a rectangular spline to better withstand torque and more effectively transmit the torque of the transmission wheel 124 to the adapter 125, and then transmit the torque to the main shaft 141 through the adapter 125. The inner spline 1252 may be a triangular spline to ensure that during the torque transmission process, the connection between the adapter 125 and the main shaft 141 is more stable and reduce the offset or shaking during the torque transmission process.

[0057] In this embodiment, the adapter 125 is a flexible adapter 125 to better adapt to the transmission wheels 124 and the main shaft 141 of different shapes and sizes. At the same time, it can also absorb shock and vibration to reduce the vibration and noise of the actuator 100 and improve the stability and reliability of the actuator 100.

[0058] Please refer to Figure 1-Figure 8 , Figure 5 is a schematic diagram of the structure of a housing assembly provided in some embodiments of the present application, Figure 6 is an exploded schematic diagram of a housing assembly provided in some embodiments of the present application, Figure 7 is a schematic diagram of the structure of the first housing provided in some embodiments of the present application, Figure 81 is a schematic diagram of the structure of the second housing provided in some embodiments of the present application. The housing assembly 170 may include but is not limited to a housing chamber 171, a first housing 172, and a second housing 173. The housing chamber 171 may include but is not limited to a transmission chamber 1711 and a drive chamber 1712. The drive chamber 1712 is in communication with the transmission chamber 1711. The transmission assembly 120 is accommodated in the transmission chamber 1711. The drive assembly 110 is accommodated in the drive chamber 1712. The first housing 172 has a first groove 1721 and a second groove 1722. The first groove 1721 is in communication with the second groove 1722. The second housing 173 has a third groove 1731 and a fourth groove 1732. The third groove 1731 is in communication with the fourth groove 1732. The second housing 173 is fixed to the first housing 172 so that the first groove 1721 is opposite to the third groove 1731, and the second groove 1722 is opposite to the fourth groove 1732. The first groove 1721 and the third groove 1731 define the transmission chamber 1711. The second groove 1722 and the fourth groove 1732 define the driving cavity 1712 .

[0059] It can be understood that the first groove 1721 in the first shell 172 and the third groove 1731 in the second shell 173 form a transmission cavity 1711 for accommodating the transmission assembly 120, and the second groove 1722 in the first shell 172 and the fourth groove 1732 in the second shell 173 form a drive cavity 1712 for accommodating the drive assembly 110, so that the transmission assembly 120 and the drive assembly 110 are first placed in one of the first shell 172 and the second shell 173, and then the other of the first shell 172 and the second shell 173 is covered, and the installation of the transmission assembly 120 and the drive assembly 110 can be completed, and the disassembly process is the opposite. In this way, the housing assembly 170 facilitates the disassembly and assembly of the drive assembly 110 and the transmission assembly 120, thereby improving production efficiency and facilitating maintenance.

[0060] Further, the housing assembly 170 further includes a first clamping hole 1713 and a second clamping hole 1714. The first clamping hole 1713 is located at one side of the transmission cavity 1711 and communicates with the transmission cavity 1711. The fixed end of the first ball-and-socket connector 181 (i.e., the end of the first ball-and-socket connector 181 close to the main shaft 141) is clamped in the first clamping hole 1713. The second clamping hole 1714 is located at the other side of the transmission cavity 1711 and communicates with the transmission cavity 1711. The fixed end of the guide tube 190 (i.e., the end of the guide tube 190 close to the first ball-and-socket connector 181) is clamped in the second clamping hole 1714.

[0061] The first clamping hole 1713 and the second clamping hole 1714 are located on the same central axis. The transmission cavity 1711 is located between the first clamping hole 1713 and the second clamping hole 1714. In this way, the guide tube 190, the nut push tube 142, the main shaft 141, the second bearing 143, the third bearing 127 and the first ball socket connector 181 and other related parts can be more accurately positioned, making it easier for production and maintenance personnel to install, disassemble and repair related parts.

[0062] Furthermore, the housing assembly 170 further includes a first retainer 174, a second retainer 183 and a first coil spring 160. The first retainer 174 is formed on the first housing 172 and the second housing 173 around the second clamping hole 1714. A spiral groove is provided on the outer circumference of the first retainer 174. The second ball and socket connector 182 is penetrated through the second retainer 183. A spiral groove is provided on the outer circumference of the second retainer 183. One end of the first coil spring 160 is fixed to the spiral groove of the first retainer 174, and the other end of the first coil spring 160 is fixed to the spiral groove of the second retainer 183. The restoring force of the first coil spring 160 makes the second retainer 183 fixed to the second ball and socket connector 182.

[0063] In this embodiment, the length direction of the driving cavity 1712 is parallel to the length direction of the guide tube 190 to adapt to the actuator with a parallel layout.

[0064] In some other embodiments, the length direction of the driving cavity 1712 intersects with the length direction of the guide tube 190 to adapt to an actuator with an intersecting layout.

[0065] The length direction of the driving cavity 1712 refers to the axial direction of the driving cavity 1712. The length direction of the guide tube 190 refers to the axial direction of the guide tube 190.

[0066] Further, the first housing 172 further includes a fifth groove 1723 and a sixth groove 1724. The fifth groove 1723 is located on one side of the first groove 1721 and communicates with the first groove 1721. The sixth groove 1724 is located on the other side of the first groove 1721 and communicates with the first groove 1721. The second housing 173 further includes a seventh groove 1733 and an eighth groove 1734. The seventh groove 1733 is located on one side of the third groove 1731 and communicates with the third groove 1731. The eighth groove 1734 is located on the other side of the third groove 1731 and communicates with the third groove 1731. The fifth groove 1723 is opposite to the seventh groove 1733 and defines the first clamping hole 1713 together. The sixth groove 1724 is opposite to the eighth groove 1734 and defines the second clamping hole 1714 together.

[0067] Further, one of the second groove 1722 and the fourth groove 1732 is provided with a sealing strip 1751. The other of the second groove 1722 and the fourth groove 1732 is provided with a sealing groove 1752. The sealing strip 1751 is disposed in the sealing groove 1752 to improve the sealing performance of the driving chamber 1712.

[0068] In this embodiment, the fourth groove 1732 is provided with a sealing groove 1752, and the second groove 1722 is provided with a sealing strip 1751. When the first shell 172 and the second shell 173 are covered, the sealing strip 1751 of the second groove 1722 is embedded in the sealing groove 1752 of the fourth groove 1732 to improve the sealing performance of the driving chamber 1712.

[0069] Further, one of the first groove 1721 and the third groove 1731 is provided with a plurality of positioning pins 1761. The other of the first groove 1721 and the third groove 1731 is provided with a plurality of positioning holes 1762. One of the second groove 1722 and the fourth groove 1732 is provided with a plurality of positioning pins 1761. The other of the second groove 1722 and the fourth groove 1732 is provided with a plurality of positioning holes 1762. Among them, the positioning pins 1761 are inserted into the positioning holes 1762. In this way, the assembly efficiency of the housing assembly 170 can be improved, the production cost can be reduced, and later maintenance and replacement can be facilitated. In this embodiment, the first groove 1721 is provided with a plurality of positioning holes 1762, the third groove 1731 is provided with a plurality of positioning pins 1761, and the fourth groove 1732 is provided with a plurality of positioning pins 1761. The second groove 1722 is provided with a plurality of positioning holes 1762.

[0070] Please refer to Figure 1-Figure 11 , Fig.10 is a schematic diagram of the structure of a gap elimination component provided in some embodiments of the present application, Fig.11 1 is a schematic diagram of an exploded view of a clearance elimination assembly provided in some embodiments of the present application. The actuator 100 further includes a clearance elimination assembly 150. The clearance elimination assembly 150 is disposed at one end of the transmission shaft 121 away from the damping assembly 130 (i.e., one end of the transmission shaft 121 is passed through the clearance elimination assembly 150). The clearance elimination assembly 150 is used to automatically eliminate the meshing clearance between the worm portion 1241 and the worm wheel portion 1211, so that the meshing clearance between the worm wheel portion 1241 and the worm portion 1211 always maintains a suitable size, thereby improving transmission efficiency and reducing noise.

[0071] Further, the transmission chamber 1711 is provided with a first accommodating chamber 1711a. The clearance elimination assembly 150 is accommodated in the first accommodating chamber 1711a. The transmission chamber 1711 is also provided with a second accommodating chamber 1711b. The second accommodating chamber 1711b is spaced and opposite to the first accommodating chamber 1711a. The first bearing 126 is accommodated in the second accommodating chamber 1711b. The other end of the transmission shaft 121 is passed through the first bearing 126.

[0072] Furthermore, the side walls of the first accommodating cavity 1711a and the second accommodating cavity 1711b are both provided with ribs 1711c. The gap elimination component 150 abuts against the ribs 1711c of the first accommodating cavity 1711a, and the ribs 1711c have installation and sliding guide functions for the gap elimination component 150. The first bearing 126 abuts against the ribs 1711c of the second accommodating cavity 1711b, and the ribs 1711c have installation and sliding guide functions for the first bearing 126.

[0073] Furthermore, the housing assembly 170 further includes a first support block 1771 and a second support block 1772. The first support block 1771 is spaced apart from the second support block 1772. The first support block 1771 supports and limits the gap elimination assembly 150. The second support block 1772 supports and limits the first bearing 126.

[0074] Further, the gap elimination component 150 may include but is not limited to a mounting seat 151 and a plurality of second coil springs 152. The end surface of the mounting seat 151 has a plurality of accommodating holes 1511. The second coil spring 152 is disposed in the accommodating hole 1511. The side surface of the mounting seat 151 has a supporting hole 1512. One end of the transmission shaft 121 is passed through the supporting hole 1512. The second coil spring 152 is pre-pressed between the bottom wall of the first accommodating cavity 1711a and the bottom wall of the accommodating hole 1511. In this way, the second coil spring 152 can apply continuous pressure to the worm portion 1211, so that the meshing clearance between the worm wheel portion 1241 and the worm portion 1211 is maintained within a suitable range, thereby avoiding excessive meshing clearance due to wear or improper installation, which in turn leads to reduced transmission efficiency and noise.

[0075] In this embodiment, the bottom wall of the first accommodating cavity 1711a is further provided with a plurality of limiting holes 1715. The second coil spring 152 is pre-compressed between the limiting holes 1715 and the accommodating hole 1511.

[0076] Further, the mounting seat 151 is provided with an elastic block 1513 on the side away from the transmission shaft 121. One end of the elastic block 1513 is fixed to the mounting seat 151. The other end of the elastic block 1513 is a free end. The elastic block 1513 can abut against the side wall of the first accommodating cavity 1711a through elastic deformation, so that the gap elimination component 150 can still be securely fixed to the first accommodating cavity 1711a during the process of adjusting the meshing gap.

[0077] The actuator 100 provided in the present application includes: a driving component 110, including a driving shaft 111; a transmission component 120, including a transmission shaft 121, which is transmission-connected to the driving shaft 111 and perpendicular to the driving shaft 111; a damping component 130, which is arranged along the length direction of the driving shaft 111 and connected to one end of the transmission shaft 121 close to the driving shaft 111; an actuator component 140, including a main shaft 141 and a nut push tube 142 threadedly connected to the main shaft 141, which is transmission-connected to the transmission shaft 121 and parallel to the driving shaft 111, wherein the rotational motion of the main shaft 141 can be converted into a linear reciprocating motion of the nut push tube 142. In the technical solution of the present application, the main shaft 141 is parallel to the driving shaft 111, so that the overall height of the actuator 100 is reduced; further, the transmission shaft 121 is perpendicular to the driving shaft 111, and the damping assembly 130 is arranged along the length direction of the driving shaft 111 and connected to the end of the transmission shaft 121 close to the driving shaft 111, so that the fixed length section of the actuator 100 is shortened. In this way, the actuator 100 has the advantages of short fixed length, small volume and high adaptability.

[0078] See also Fig.12 , Fig.12 1 is a schematic diagram of a vehicle door system provided in some embodiments of the present application. The vehicle door system 1000 may include but is not limited to an actuator 100 .

[0079] See also Fig.13 , Fig.13 1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application. The vehicle 10000 may include but is not limited to a door system 1000.

[0080] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An actuator, characterized in that: include: a drive assembly, including a drive shaft; A transmission assembly, comprising a transmission shaft, the transmission shaft being in transmission connection with the drive shaft and the transmission shaft being perpendicular to the drive shaft; A damping assembly, arranged along the length direction of the driving shaft and connected to an end of the transmission shaft close to the driving shaft; The actuator assembly includes a main shaft and a nut push tube threadedly connected to the main shaft, wherein the main shaft is in driving connection with the transmission shaft and the main shaft is parallel to the drive shaft, wherein the rotational motion of the main shaft can be converted into the linear reciprocating motion of the nut push tube.

2. The actuator according to claim 1, characterized in that The transmission assembly further includes a first bevel gear and a second bevel gear, the first bevel gear is arranged on the driving shaft, the second bevel gear is arranged on the transmission shaft, and the first bevel gear is meshed with the second bevel gear; The transmission assembly further comprises a transmission wheel, the transmission wheel having a worm gear portion, the transmission shaft having a worm gear portion, the worm gear portion of the transmission shaft meshing with the worm gear portion of the transmission wheel; One end of the main shaft is passed through the transmission wheel and is in transmission connection with the transmission wheel, wherein the transmission wheel can drive the main shaft to rotate; The second bevel gear is located between the worm portion and the damping assembly.

3. The actuator according to claim 2, characterized in that The transmission ratio between the first bevel gear and the second bevel gear is 1:

1.

4. The actuator according to claim 2, characterized in that: The transmission assembly also includes an adapter, which is arranged between the transmission wheel and the main shaft, the outer wall of the adapter is spline-connected to the transmission wheel, and the inner wall of the adapter is spline-connected to one end of the main shaft.

5. The actuator according to claim 4, characterized in that The adapter is a flexible adapter.

6. The actuator according to claim 4, characterized in that The outer wall of the adapter has external splines, and the inner wall of the adapter has internal splines, and the width of the external splines is greater than the width of the internal splines.

7. The actuator according to claim 6, characterized in that The external spline is a rectangular spline, and the internal spline is a triangular spline.

8. The actuator according to claim 2, characterized in that The actuator further comprises a clearance elimination component, which is arranged at one end of the transmission shaft away from the damping component, and is used for automatically eliminating the meshing clearance between the worm part and the worm wheel part.

9. The actuator according to claim 2, characterized in that: The actuator further includes a first bearing, which is sleeved on the transmission shaft and located between the worm portion and the second bevel gear.

10. The actuator according to claim 2, characterized in that The actuator further comprises a second bearing, which is sleeved on the main shaft and located between the transmission wheel and the nut push tube; The actuator further includes a third bearing, which is sleeved on one end of the transmission wheel and is further away from the second bearing than the worm gear portion.

11. The actuator according to claim 1, characterized in that The actuator further comprises a housing component, wherein the housing component is provided with a containing cavity, and a part of the structure of the actuator component, the driving component, the transmission component and the damping component are arranged in the containing cavity.

12. The actuator according to claim 11, characterized in that The actuator also includes a first ball and socket connection member and a second ball and socket connection member, the first ball and socket connection member is arranged along the length direction of the main shaft and is spaced opposite to one end of the main shaft close to the transmission shaft, the second ball and socket connection member is arranged along the length direction of the main shaft and is fixedly connected to one end of the nut push tube away from the transmission shaft, and the partial structure of the first ball and socket connection member close to the main shaft is fixed in the housing assembly.

13. The actuator according to claim 12, characterized in that The actuator also includes a guide tube, in which at least part of the structure of the nut push tube is located. The guide tube is used to guide the linear reciprocating motion of the nut push tube, and one end of the guide tube close to the transmission shaft is fixed in the housing assembly.

14. The actuator according to claim 13, characterized in that In the length direction of the main axis, the distance between the guide tube and the center axis of the ball socket of the first ball socket connector is greater than or equal to 50 mm and less than or equal to 60 mm.

15. The actuator according to claim 1, characterized in that In the length direction of the transmission shaft, the distance between the central axis of the main shaft and the central axis of the driving shaft is greater than or equal to 35 mm and less than or equal to 45 mm.

16. A vehicle door system, characterized in that: Comprising an actuator as claimed in any one of claims 1-15.

17. A vehicle, characterized in that: Comprising the vehicle door system as claimed in claim 16.

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