Shafting supporting device, actuator for vehicle, rearview mirror and vehicle

Abstract

The invention provides a shafting supporting device, an actuator for a vehicle, a rearview mirror and the vehicle, the shafting supporting device comprises a rotating shaft, a mounting seat and a shell, one end of the shell is provided with a mounting hole formed along a second center line, the rotating shaft penetrates through the mounting hole along the second center line, and the mounting seat is arranged on the mounting hole. And the connecting rod is detachably connected with one end of the mounting seat.

Description

[0001] This application claims priority to Chinese Patent Application No. 202520623073.X, filed on April 3, 2025, and incorporates by reference the entire disclosure of the aforementioned patent application as part of this application. TECHNICAL FIELD

[0002] The present disclosure relates to the field of automotive technology, in particular, to an actuator, a rearview mirror and a vehicle. BACKGROUND

[0003] The vehicle rearview mirror is generally fixedly installed on both sides of the vehicle body, and the angle adjustment mainly relies on manual operation or electric adjustment. With the development of the automotive industry and the progress of technology, higher requirements are put forward for the functionality and flexibility of the rearview mirror. The driver's needs for the rearview mirror field of view are different under different driving conditions (such as urban road driving, highway cruising, night driving, etc.), and the body size and sitting posture of each driver also differ, which all affect the effective use of the rearview mirror. In addition, in bad weather or special road conditions, the fixed viewing angle may not meet the requirements of safe driving.

[0004] In order to meet the requirements of safe driving, rearview mirrors that can be adjusted in front and back rotation and left and right rotation have appeared on the market, but they have the problem of unstable operation.

[0005] On the other hand, how to conveniently and stably assemble and maintain the actuator is also a problem to be solved. SUMMARY

[0006] The purpose of the present disclosure is to provide a shafting support device for an actuator, a rearview mirror and a vehicle of a vehicle to solve the problems mentioned in the background or other similar problems.

[0007] The first aspect of the present disclosure provides a shafting support device, comprising a rotating shaft, a mounting seat and a housing, wherein one end of the housing has a mounting hole arranged along a second center line, the rotating shaft passes through the mounting hole along the second center line, and the other end of the mounting seat is detachably connected with the rotating shaft.

[0008] According to the embodiment of the present disclosure, the other end of the mounting seat has a guide sleeve arranged along the second center line, the guide sleeve comprises an upper half sleeve body and a lower half sleeve body, wherein the upper half sleeve body and the lower half sleeve body are misaligned in the axial direction of the guide sleeve; the other end of the housing has a guide shaft arranged along the second center line, and the guide shaft is inserted into the guide sleeve from between the upper half sleeve body and the lower half sleeve body.

[0009] The second aspect of the present disclosure provides an actuator for a vehicle, which comprises the shafting support device provided by the first aspect of the present disclosure.

[0010] According to an embodiment of the present disclosure, the rotation shaft is arranged along a second center line, the rotation shaft is part of a swing arm, the swing arm is arranged in a sub-shaft assembly, and the actuator further comprises a second driving assembly, wherein the sub-shaft assembly cooperates with the second driving assembly to drive the housing of the rearview mirror to rotate around the second center line.

[0011] According to an embodiment of the present disclosure, the actuator further comprises a main shaft assembly and a first driving assembly, the main shaft assembly is in transmission connection with the first driving assembly, the main shaft assembly is used to convert the rotation movement of the first driving assembly itself into the rotation movement of the housing of the actuator driven by the first driving assembly to rotate around the first center line, and the first center line and the second center line are not parallel to each other.

[0012] According to an embodiment of the present disclosure, the sub-shaft assembly further comprises: a sub-shaft; and a second rotation support, which is sleeved outside the sub-shaft and is in transmission connection with the second driving assembly, the second rotation support is used to perform rotation movement around a third center line by using the torque output by the second driving assembly, the third center line is not parallel to the second center line; and the swing arm further comprises an engaging portion, the engaging portion is in transmission connection with the second rotation support, and the engaging portion performs swing movement around the second center line by using the torque output by the second rotation support to drive the housing to perform rotation movement around the second center line.

[0013] According to an embodiment of the present disclosure, the sub-shaft assembly further comprises: a gap elimination element, which is sleeved outside the sub-shaft and is in abutment with the second rotation support in the axial direction of the sub-shaft, wherein the gap elimination element comprises a first guide inclined surface matched with the housing and a second guide inclined surface matched with the swing arm, the first guide inclined surface and the second guide inclined surface are used to guide the swing arm to move towards the direction close to the third center line when the second rotation support is pressed, so as to eliminate the gap between the engaging portion and the second rotation support.

[0014] According to an embodiment of the present disclosure, the gap-eliminating element further comprises a first limiting end face and a second limiting end face, and the housing further comprises a first positioning platform comprising a first positioning slope and a first supporting end face, the first positioning slope being configured to cooperate with the first guiding slope, and the first supporting end face being configured to cooperate with the first limiting end face; the swing arm further comprises a first positioning protrusion, the first positioning protrusion having a sliding slope configured to cooperate with a second guiding slope and a positioning end face configured to cooperate with the second limiting end face, wherein the first guiding slope is in abutment with the first positioning slope, the first supporting end face and the first limiting end face have a first gap in the axial direction of the secondary shaft, and the second guiding slope is in abutment with the sliding slope, and the second limiting end face and the positioning end face have a second gap in the axial direction of the secondary shaft.

[0015] According to an embodiment of the present disclosure, the housing further comprises a second positioning platform, and the rotating shaft further comprises a second positioning protrusion, the first positioning protrusion and the second positioning protrusion having a gap portion therebetween, and the second positioning platform is configured to be inserted into the gap portion in a direction parallel to the second center line.

[0016] According to an embodiment of the present disclosure, the second rotating support comprises a first gear and a second gear which are in abutment with each other along the longitudinal center line and are disengageably in abutment with each other in the circumferential direction, the swing arm is engaged with the first gear, and the output end of the second driving assembly is engaged with the second gear, wherein the gap-eliminating element further comprises an embedding portion, the embedding portion having an embedding surface which is at least partially in abutment with the inner wall of the second gear.

[0017] According to an embodiment of the present disclosure, the rotating shaft and the engaging portion are in an integral structure.

[0018] The third aspect of the present disclosure further provides a rearview mirror, comprising: a housing; and an actuator provided in the housing and according to the second aspect of the present disclosure.

[0019] The fourth aspect of the present disclosure provides a vehicle, comprising the rearview mirror provided in the third aspect of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and other objects, features and advantages of the present disclosure will become more apparent from the following description when taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A cross-sectional view of a rearview mirror according to an embodiment of the present disclosure is schematically shown.

[0022] Figure 2 A partial perspective view of a rearview mirror according to an embodiment of the present disclosure is shown schematically.

[0023] Figure 3 A partial cross-sectional view of a rearview mirror according to an embodiment of the present disclosure is shown schematically.

[0024] Figure 4 A perspective view of the main shaft assembly and the first drive assembly of a rearview mirror according to an embodiment of the present disclosure is shown schematically.

[0025] Figure 5(a) schematically illustrates a perspective view of the sub-shaft assembly and the second drive assembly of a rearview mirror according to an embodiment of the present disclosure.

[0026] Figure 5(b) schematically illustrates a perspective view of the sub-shaft assembly and the second drive assembly of another rearview mirror according to an embodiment of the present disclosure.

[0027] Figure 6 A perspective view of the drive ring, sliding ring, and main shaft of a rearview mirror according to an embodiment of the present disclosure is shown schematically.

[0028] Figure 7 A perspective view of the first and second gears of a rearview mirror according to an embodiment of the present disclosure is shown schematically.

[0029] Figure 8 A partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure is shown schematically.

[0030] Figure 9 A perspective view of a mounting base according to an embodiment of the present disclosure is shown schematically.

[0031] Figure 10 A partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure is shown schematically.

[0032] Figure 11 yes Figure 9 Enlarged view of a partial cross-sectional view of the center rearview mirror.

[0033] Figure 12 A partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure is shown schematically.

[0034] Figure 13 An assembly diagram of a rearview mirror housing and an elastic component according to an embodiment of the present disclosure is shown schematically.

[0035] Figure 14 A schematic diagram of an elastic member according to an embodiment of the present disclosure is shown.

[0036] Figure 15A partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure is schematically shown.

[0037] Figure 16 A structure schematic view of a sliding ring and a driving ring of a first rotary support in an engaged state according to an embodiment of the present disclosure is schematically shown.

[0038] Figure 17 A structure schematic view of a sliding ring and a driving ring of a first rotary support in a disengaged state according to an embodiment of the present disclosure is schematically shown.

[0039] Figure 18 A structure schematic view of a first gear and a second gear in an engaged state according to an embodiment of the present disclosure is schematically shown.

[0040] Figure 19 A structure schematic view of a first gear and a second gear in a disengaged state according to an embodiment of the present disclosure is schematically shown.

[0041] Figure 20 A perspective structure view of a gap eliminating element according to an embodiment of the present disclosure is schematically shown.

[0042] Figure 21 A perspective structure view of a swing arm according to an embodiment of the present disclosure is schematically shown.

[0043] Figure 22 A partial perspective structure view of a lower housing according to an embodiment of the present disclosure is schematically shown.

[0044] Figure 23 A partial cross-sectional view of an actuator according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0045] In order to make the above objectives, features and advantages of the disclosure more clear and comprehensible, detailed descriptions of specific embodiments of the present disclosure will be given below with reference to the accompanying drawings. However, it should be understood that the description is only exemplary and is not intended to limit the scope of the disclosure. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent that one or more embodiments can be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present disclosure.

[0046] The terms used herein are only intended to describe specific embodiments and are not intended to limit the present disclosure. The terms "include", "comprise" and the like used herein indicate the presence of the described features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0047] All terms used herein, including technical and scientific terms, have the meanings commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the use of any terms herein should not be interpreted as limiting unless otherwise indicated. The use of the singular is only intended to convey a particular embodiment and not to exclude the plural unless otherwise indicated.

[0048] In the case where expressions such as "at least one of A, B and C, etc." are used, it is generally construed that the meaning is understood by one of ordinary skill in the art as it is commonly used (for example, "having at least one of A, B and C" should include only A, only B, only C, both A and B, both A and C, both B and C, and / or both A, B and C, etc.). The terms "first", "second", etc. are used only for the purpose of description and should not be construed as indicating or implying relative importance or implying the number of technical features indicated. Thus, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0049] The actuator according to embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0050] As shown in Figures 1 to 23 , the actuator 100 according to embodiments of the present disclosure can be disposed in a housing 800 of a rearview mirror of a vehicle. The housing of the rearview mirror can include an upper housing (not shown in the drawings) on which a mirror lens of the rearview mirror can be mounted, which can or can not be part of the rearview mirror according to embodiments of the present disclosure, and a lower housing which is detachably connected to the upper housing. The actuator 100 can be mounted on the lower housing. Further, the housing 700 of the actuator can include at least an upper housing 701 and a lower housing 702. Specifically, the housing 700 of the actuator 100 can be mounted on the housing 800 of the rearview mirror, and the housing 800 can have a longitudinal center line and a transverse center line, the longitudinal center line can be the center of rotation of the rearview mirror in the horizontal direction (which can be referred to as the in&out direction), and the transverse center line can be the center of rotation of the rearview mirror in the vertical direction (which can be referred to as the up&down direction). For the sake of convenience, the rotation of the rearview mirror in the vertical direction about the transverse center line can be referred to as swinging.

[0051] As shown in Figure 3 , the actuator 100 defines the same longitudinal center line X1 and transverse center line X2 as the housing of the rearview mirror. The longitudinal center line X1 can be the center of rotation of the rearview mirror in the horizontal direction (which can be referred to as the in&out direction), and the transverse center line X2 can be the center of rotation of the rearview mirror in the vertical direction (which can be referred to as the up&down direction). For the sake of convenience, the longitudinal center line X1 can also be referred to as the first center line, and the transverse center line X2 can also be referred to as the second center line.

[0052] The actuator 100 comprises a main shaft assembly 200, a sub-shaft assembly 300, a first driving assembly 400 and a second driving assembly 500. The first driving assembly 400 and the second driving assembly 500 are independent of each other. The first driving assembly 400 cooperates with the main shaft assembly 200 to drive the housing of the rearview mirror to rotate about the first center line X1. The second driving assembly 500 cooperates with the sub-shaft assembly 300 to drive the housing of the rearview mirror to rotate about the second center line X2. It can be seen that the first center line X1 and the second center line X2 are not parallel to each other. In some embodiments, the first center line X1 and the second center line X2 are perpendicular to each other.

[0053] The main shaft assembly 200 is arranged along the first center line X1, that is, the center axis of the main shaft assembly 200 can coincide with the first center line X1. The sub-shaft assembly 300 can be arranged along the third center line X3, and in some embodiments, the first center line X1 and the third center line X3 can be parallel to each other.

[0054] In embodiments of the present disclosure, the main shaft assembly 200 is in transmission connection with the first driving assembly 400 and is configured to convert the rotation movement of the first driving assembly 400 itself into the rotation movement of the first driving assembly 400 driving the housing 800 to rotate about the first center line X1.

[0055] The main shaft assembly 200 at least comprises a main shaft 201 and a first rotation support 210. The first center line X1 can be regarded as the center axis of the main shaft 201, and the main shaft 201 can be fixed on a base which can be fixedly connected with a cantilever fixed on the housing of the vehicle, thereby achieving support and fixation of the main shaft 201.

[0056] As shown in Figure 2 , Figure 3 , Figure 4 , the first rotation support 210 is sleeved on the main shaft 201 and is in transmission connection with the first driving assembly 400, and is used to support the rotation movement of the housing of the rearview mirror about the longitudinal center line X1 (i.e. the rotation movement in the in&out direction). The first rotation support 210 can keep circumferential static relative to the main shaft 201 without rotating relative to the main shaft 201, in which case the first rotation support 210 and the main shaft 201 can be regarded as an integral structure which cannot rotate about the longitudinal center line X1.

[0057] As shown in Figure 2 , Figure 3 , Fig. 5(a) and Fig. 5(b), the sub-shaft assembly 300 comprises a sub-shaft 301 arranged along a third center line, a second rotation support 310 and a swing arm 320. The third center line X3 can be regarded as the center axis of the sub-shaft 301.

[0058] The second rotating support 310 is sleeved on the secondary shaft 301 and is in transmission connection with the second driving assembly 500, and is used for supporting the rotation of the housing of the rearview mirror around the second center line X2 (i.e. the swing movement in the up&down direction).

[0059] As shown in FIG. 5(a) and FIG. 5(b), the swing arm 320 includes an engaging portion 3201 and a rotating shaft portion 3202 (i.e. a rotating shaft). The rotating shaft portion 3202 is in an integral structure with the engaging portion 3201. The engaging portion 3201 of the swing arm 320 is in transmission connection with the second rotating support 310, and the rotating shaft portion 3202 of the swing arm 320 is arranged along the second center line X2 and is connected with the housing 700 of the actuator, so as to drive the housing 800 of the rearview mirror to rotate around the second center line X2 through the housing 700 of the actuator.

[0060] As shown in FIG. 5(a) and FIG. 5(b), the swing arm 320 includes an engaging portion 3201 and a rotating shaft portion 3202 (i.e. a rotating shaft). The rotating shaft portion 3202 is in an integral structure with the engaging portion 3201. The engaging portion 3201 of the swing arm 320 is in transmission connection with the second rotating support 310, and the rotating shaft portion 3202 of the swing arm 320 is arranged along the second center line X2 and is connected with the housing 700 of the actuator, so as to drive the housing 800 of the rearview mirror to rotate around the second center line X2 through the housing 700 of the actuator. Figure 2 Figure 4 The first driving assembly 400 is arranged in the housing 700 and can be connected with the housing 800. The first rotating support 210 is in engagement with the output end of the first driving assembly 400, so as to support the rotation of the first driving assembly 400 together with the housing 800 around the longitudinal center line X1. Specifically, when the output torque of the first driving assembly 400 is started, since the first rotating support 210 is kept circumferentially stationary relative to the main shaft 201 and does not rotate relative to the main shaft 201, the first driving assembly 400 in engagement with the first rotating support 210 will rotate around the first rotating support 210 and simultaneously rotate with the housing 800, so as to realize the rotation of the rearview mirror around the longitudinal center line X1. This adjustment of the rearview mirror can be referred to as the electric adjustment in the in&out direction.

[0061] As shown in FIG. 5(a) and FIG. 5(b), the swing arm 320 includes an engaging portion 3201 and a rotating shaft portion 3202 (i.e. a rotating shaft). The rotating shaft portion 3202 is in an integral structure with the engaging portion 3201. The engaging portion 3201 of the swing arm 320 is in transmission connection with the second rotating support 310, and the rotating shaft portion 3202 of the swing arm 320 is arranged along the second center line X2 and is connected with the housing 700 of the actuator, so as to drive the housing 800 of the rearview mirror to rotate around the second center line X2 through the housing 700 of the actuator. Figure 2 ​As shown in FIG. 5(a) and FIG. 5(b), the second driving assembly 500 is arranged in the housing 700 and can be connected with the housing 800. The second rotating support 310 is engaged with the output end of the second driving assembly 500 at one end and engaged with the swing arm 320 at the other end. Thus, the torque from the second driving assembly 500 is transmitted to the swing arm 320 through the second rotating support 310, and the housing 800 is swung around the second center line X2 by the swing arm 320. Specifically, when the second driving assembly 500 outputs torque, the second rotating support 310 rotates around the third center line X3 due to the torque, and the swing arm 320 engaged with the second rotating support 310 rotates around the second center line X2 due to the rotation of the second rotating support 310. Further, the swing arm 320 swings the housing 800 around the second center line X2, thereby realizing the rotation of the housing 800 around the second center line X2. That is, the second driving assembly 500 outputs torque to drive the second rotating support 310 to rotate around the third center line X3 and drive the swing arm 320 to swing around the second center line X2, thereby driving the housing 800 to rotate around the second center line X2. In other words, the second rotating support 310 arranged around the secondary shaft 301 is in transmission connection with the second driving assembly 500, and the second rotating support 310 is used to rotate around the third center line X3 by the torque output by the second driving assembly 500. The engaging part 3201 of the swing arm is in transmission connection with the second rotating support 310, and the engaging part 3201 swings around the second center line X2 by the torque output by the second rotating support 310, thereby driving the housing 800 to rotate around the second center line X2. This adjustment of the rearview mirror can be referred to as electric adjustment in the up&down direction.

[0062] The embodiments of the present application arrange the first driving assembly 400 and the second driving assembly 500 in the same housing, and the first rotating support 210 for supporting the rotation and the second rotating support 310 for supporting the swing are arranged around two parallel primary shafts, respectively. Since the double-motor and double-shaft driving are adopted, the rotation of the actuator 100 in the in&out and up&down directions is controlled, respectively, and the movements in the two directions are relatively independent and not easy to interfere with each other, thereby simplifying the design of the rearview mirror, closely integrating the structure, improving the stability of the operation of the actuator 100, and being easy to process and maintain.

[0063] As Figure 6As shown, in some embodiments, the first rotary support 210 comprises a sliding ring 211 and a driving ring 212 abutting against each other along the first center line X1 and disengageably abutting against each other in the circumferential direction, the sliding ring 211 being slidable along the first center line X1 and being prevented from rotating relative to the spindle 201 about the first center line X1, the driving ring 212 being engaged with the output end of the first driving assembly 400. The driving ring 212 selectively remains fixed relative to the sliding ring 211 or is rotatable relative to the sliding ring 211 in the circumferential direction in response to different torques received from the first driving assembly 400.

[0064] The rearview mirror in the present embodiment not only has the electric adjustment function in the in&out direction, but also has the manual adjustment function in the in&out direction.

[0065] When the electric adjustment is needed, the first driving assembly 400 is started, and the first driving assembly 400 outputs a torque (referred to as a first electric torque), which is small and insufficient to drive the driving ring 212 to disengage from the abutment of the sliding ring 211 in the circumferential direction, i.e., at this time, the driving ring 212 remains fixed relative to the sliding ring 211 in the circumferential direction and cannot rotate, and therefore, the first driving assembly 400 engaged with the driving ring 212 rotates around the driving ring 212 and simultaneously rotates with the housing 800, thereby achieving the electric rotation of the rearview mirror about the longitudinal center line X1, and thus achieving the electric adjustment of the rearview mirror in the in&out direction.

[0066] When the manual adjustment is needed, the hand applies a rotating pushing force (referred to as a first manual torque) to the housing 800, and the first manual torque is transmitted to the driving ring 212 via the first driving assembly 400 connected with the housing 800, the first manual torque being large enough to drive the driving ring 212 to disengage from the abutment of the sliding ring 211 in the circumferential direction, i.e., at this time, the driving ring 212 is rotatable relative to the sliding ring 211 in the circumferential direction, and therefore, the housing 800, the first driving assembly 400 and the driving ring 212 rotate together around the spindle 201, thereby achieving the manual rotation of the rearview mirror about the first center line X1, and thus achieving the manual adjustment of the rearview mirror in the in&out direction.

[0067] As Figure 16 and Figure 17As shown in the figure, in one possible technical solution, the driving ring 212 has at least one first protrusion 2121 protruding towards the sliding ring 211 along the first center line X1, and the sliding ring 211 has at least one second protrusion 2111 protruding towards the driving ring 212 along the first center line X1, and the first protrusion 2121 and the second protrusion 2111 are in releasable abutment in the circumferential direction. When the first protrusion 2121 and the second protrusion 2111 are in abutment in the circumferential direction, the driving ring 212 is fixed relative to the sliding ring 211 and cannot rotate, and when the first protrusion 2121 and the second protrusion 2111 are in abutment in the circumferential direction. The driving ring 212 can rotate relative to the sliding ring 211. Thus, by providing the first protrusion 2121 and the second protrusion 2111, the driving ring 212 and the sliding ring 211 are in releasable abutment in the circumferential direction.

[0068] As shown in the figure, Figure 6 , Figure 16 and Figure 17 , for example, the driving ring 212 has a plurality of first protrusions 2121 arranged at intervals around the longitudinal center line X1, and the sliding ring 211 has a plurality of second protrusions 2111 arranged at intervals around the longitudinal center line X1, and when the plurality of first protrusions 2121 and the plurality of second protrusions 2111 are engaged, the driving ring 212 and the sliding ring 211 are relatively fixed in the circumferential direction, and when the plurality of first protrusions 2121 and the plurality of second protrusions 2111 are disengaged, the driving ring 212 can rotate relative to the sliding ring 211.

[0069] Further, at least one of the first protrusion 2121 and the second protrusion 2111 is provided with an inclined side surface for guiding the first protrusion 2121 to disengage from the abutment of the second protrusion 2111 in the circumferential direction, and at least one of the first protrusion 2121 and the second protrusion 2111 is provided with a horizontal end surface allowing the first protrusion 2121 to rotate relative to the second protrusion 2111. Thus, when the driving ring 212 is driven by the second predetermined torque, the first protrusion 2121 located between two second protrusions 2111 can be guided by the inclined side surface to contact one of the second protrusions 2111 through the horizontal end surface (i.e. the second protrusion 2111 is lifted by the first protrusion 2121 and contacts the upper end surface of the first protrusion 2121), and can continue to rotate along the horizontal end surface until the first protrusion 2121 falls into the second protrusion 2111 and the third second protrusion 2111.

[0070] Wherein the inclined side surface is inclined at an angle relative to the longitudinal center line X1, the angle is greater than 0 and less than 90°, and the horizontal end surface can be perpendicular to the first center line X1.

[0071] Exemplarily, each first boss 2121 has two opposite sides in the circumferential direction being inclined sides 2122, and each first boss 2121 has an end face facing the sliding ring 211 being a horizontal end face 2123; each second boss 2111 has two opposite sides in the circumferential direction being inclined sides 2112, and each second boss 2111 has an end face facing the sliding ring 211 being a horizontal end face 2113.

[0072] Optionally, the outer side wall of the driving ring 212 is provided with a first tooth portion 2124, and the output end of the first driving assembly 400 is engaged with the first tooth portion 2124. Each tooth of the first tooth portion 2124 is an inclined tooth inclined relative to the longitudinal center line X1.

[0073] Optionally, the outer side of the main shaft 201 is provided with at least one sliding guide protrusion 2011. The sliding guide protrusion 2011 extends along the first center line X1. At least the inner side of the sliding ring 211 is provided with a sliding guide groove 2013 matched with the plurality of sliding guide protrusions 2011, so as to at least facilitate the positioning and limiting of the sliding ring 211 on the main shaft 201, and allow the sliding ring 211 to be stationary in the circumferential direction and slide in the longitudinal direction relative to the main shaft 201, thereby realizing selective prevention of the rotation of the sliding ring 211 relative to the main shaft 201 about the longitudinal center line X1 and allowing the sliding ring 211 to slide along the longitudinal center line X1 relative to the main shaft 201 based on different torques output by the first driving assembly 400.

[0074] Optionally, the sliding guide protrusion 2011 can be narrowed in the direction extending along the first center line X1. Since the sliding guide protrusion 2011 is narrowed in the direction extending along the first center line X1, the driving ring 212 and the sliding ring 211 can be gaplessly matched with the sliding guide protrusion 2011, thereby enhancing stability.

[0075] Optionally, the outer side of the main shaft 201 can be provided with a plurality of sliding guide protrusions 2011, and the plurality of sliding guide protrusions 2011 are arranged at intervals around the central axis of the main shaft; at least the inner side of the sliding ring 211 is provided with a plurality of sliding guide grooves 2013 matched with the plurality of sliding guide protrusions 2011. The number of sliding guide protrusions 2011 is the same as the number of sliding guide grooves 2013, so as to enhance the positioning and limiting of the sliding ring 211 on the main shaft 201.

[0076] As shown in FIGS. 5(a), 5(b) and Figure 7As shown, in some embodiments, the second rotating support 220 comprises a first gear 311 and a second gear 312 abutting against each other along the longitudinal center line X1 and disengageably abutting against each other in the circumferential direction, the swing arm 320 is engaged with the first gear 311, and the output end of the second driving assembly 500 is engaged with the second gear 312. The first gear 311 selectively remains fixed relative to the second gear 312 in the circumferential direction or is rotatable relative to the second gear 312 in response to a torque received from the second driving assembly 500 via the second gear 312 or a torque received from the swing arm 320.

[0077] The rearview mirror in this embodiment not only has the electric adjustment function in the up&down direction, but also has the manual adjustment function in the up&down direction.

[0078] When electric adjustment is needed, the second driving assembly 500 is started, and the second driving assembly 500 outputs a torque (referred to as a second electric torque), which is small and insufficient to drive the second gear 312 to disengage from the abutment of the first gear 311 in the circumferential direction, i.e., at this time, the first gear 311 and the second gear 312 are relatively fixed in the circumferential direction and can rotate as a whole around the third center line X3, and therefore, the swing arm 320 engaged with the first gear 311 will swing the housing 800 together around the second center line X2 through the rotating shaft part 3202, thereby realizing electric swinging of the rearview mirror around the second center line X2, and thus realizing electric adjustment of the rearview mirror in the up&down direction.

[0079] When manual adjustment is needed, a hand applies a swinging pushing force (referred to as a second manual torque) to the housing 800, which is transmitted to the first gear 311 via the swing arm 320 connected with the housing 800, and the second manual torque is large enough to drive the first gear 311 to disengage from the abutment of the second gear 312 in the circumferential direction, i.e., at this time, the first gear 311 can rotate relative to the second gear 312 in the circumferential direction, thereby allowing the swing arm 320 engaged therewith to swing, and therefore, the housing 800 and the swing arm 320 swing together around the second center line X2, thereby realizing manual swinging of the rearview mirror around the second center line X2, and thus realizing manual adjustment of the rearview mirror in the up&down direction.

[0080] As Figure 7 , Figure 18 and Figure 19As shown in the figure, in one possible technical solution, the first gear 311 has at least one third protrusion 3111 protruding towards the second gear 312 along the third center line X3, and the second gear 312 has at least one groove 3121 arranged along the third center line X3 and matched with the third protrusion. In the circumferential direction, the third protrusion 3111 and the groove 3121 are disengageably in abutment. Specifically, when the third protrusion 3111 and the groove 3121 are in abutment in the circumferential direction, the first gear 311 is fixed relative to the second gear 312 in the circumferential direction and can rotate with the second gear 312, and when the third protrusion 3111 and the groove 3121 are disengaged in the circumferential direction, the first gear 311 can rotate relative to the second gear 312. Thus, by arranging the third protrusion 3111 and the groove 3121, the first gear 311 and the second gear 312 are disengageably in abutment in the circumferential direction.

[0081] As shown in the figure, Figure 7 , Figure 18 and Figure 19 exemplarily, the first gear 311 has a plurality of third protrusions 3111 arranged at intervals around the third center line X3, and the second gear 312 has a plurality of grooves 3121 arranged at intervals around the third center line X3, when the plurality of third protrusions 3111 and the plurality of grooves 3121 are engaged, the first gear 311 and the second gear 312 are relatively fixed in the circumferential direction, and when the plurality of third protrusions 3111 and the plurality of grooves 3121 are disengaged, the first gear 311 can rotate relative to the second gear 312.

[0082] As shown in the figure, Figure 7 , Figure 18 and Figure 19As shown, further, at least one of the third protrusion 3111 and the groove 3121 is provided with an inclined side surface for guiding the third protrusion 3111 to disengage from the top of the groove 3121 in the circumferential direction, and at least one of the third protrusion 3111 and the groove 3121 is provided with a horizontal end surface allowing the third protrusion 3111 to rotate relative to the groove 3121. Thus, when the swing arm 320 is driven by the second manual torque, due to the fact that the contact surface of the swing arm 320 and the first gear 311 has a curvature, and the side surface of the third protrusion 3111 and the groove 3121 in the circumferential direction is inclined, the force F1 (in the circumferential direction) applied by the swing arm 320 to the second rotating support 310 can be decomposed into a first pressure F2 and a second pressure F3 perpendicular to each other, wherein the first pressure F2 is consistent with the inclination angle of the inclined side surface, or can be decomposed into a component force consistent with the inclination angle of the inclined side surface, to drive the first gear 311 to slide in the direction of disengaging from the groove of the second gear 312 under the guidance of the inclined side surface, until the horizontal end surface of the second gear 312 is contacted (i.e. the third protrusion 3111 disengages from the groove 3121 and contacts the upper end surface of the second gear 312), and can continue to rotate along the horizontal end surface until the third protrusion 3111 falls into the second groove 3121 again.

[0083] Wherein the inclined side surface is inclined to the first center line X1 by an angle greater than 0 and less than 90°, and the horizontal end surface can be perpendicular to the first center line X1.

[0084] As shown in Figure 7 , Figure 18 and Figure 19 illustrated, each third protrusion 3111 has two opposite side surfaces in the circumferential direction which are inclined side surfaces 3112, and the end surface of each third protrusion 3111 facing the second gear 312 is a horizontal end surface 3113; each groove 3121 has two opposite side surfaces in the circumferential direction which are inclined side surfaces 3122, and the end surface of the second gear 312 facing the first gear 311 is a horizontal end surface 3123.

[0085] In the examples shown in FIG. 5(a) and FIG. 5(b), the first gear 311 is a straight gear, and the swing arm 320 is a face gear, and the teeth of the meshing part 3201 are uniformly distributed in a fan-shaped arrangement on the arc-shaped end of the swing arm 320, thereby realizing the conversion of the rotational motion of the first gear 311 around the third center line X3 into the swing motion of the swing arm 320 around the second center line X2.

[0086] The structural arrangement of the embodiments of the present disclosure can ensure that the first gear 311 can still be in engagement with the swing arm 320 after being lifted (i.e. disengaged from the groove) when the first gear 311 is driven by the second manual torque.

[0087] Optionally, the auxiliary shaft assembly further comprises a gap elimination element 930, which is sleeved on the outside of the auxiliary shaft 301 and abuts against the second rotating support 310 in the axial direction of the auxiliary shaft 301. It can be understood that the axial direction of the auxiliary shaft 301 coincides with the direction of the third center line X3.

[0088] Reference Figures 20 to 23 As shown in the drawings, the gap elimination element 930 comprises a first guide inclined surface 9301, a second guide inclined surface 9302, a first limiting end surface 9303 and a second limiting end surface 9304. Specifically, the gap elimination element comprises the first guide inclined surface 9301 matched with the housing and the second guide inclined surface 9302 matched with the swing arm 320, and the first guide inclined surface 9301 and the second guide inclined surface 9302 are used to guide the swing arm 320 to move in the direction close to the third center line X3 when the second rotating support 310 is pressed, so as to eliminate the gap between the engaging part 3201 and the second rotating support 310.

[0089] The gap elimination element 930 further comprises the first limiting end surface 9303 and the second limiting end surface 9304.

[0090] In the embodiments of the present disclosure, the lower housing 702 further comprises a first positioning table 7201 and a second positioning table 7202, which are used to realize the connection with the gap elimination element 930 and the swing arm 320 respectively.

[0091] Specifically, the first positioning table 7201 comprises a first positioning inclined surface 72011 and a first supporting end surface 72012, the first positioning inclined surface 72011 is used to match with the first guide inclined surface 9301, and the first supporting end surface 72012 is used to match with the first limiting end surface 9303 to support the gap elimination element 930. The pivot part 3202 of the swing arm 320 can be snap-fitted with the second positioning table 7202 to realize the positioning of the swing arm 320. For example, the pivot part 3202 of the swing arm 320 can further comprise a first positioning protrusion 3203 and a second positioning protrusion 3204, and a gap part exists between the first positioning protrusion 3203 and the second positioning protrusion 3204, which is used to snap-fit with the second positioning table 7202. That is, the second positioning table 7202 is inserted into the gap part in the direction parallel to the second center line X2.

[0092] Further, the first positioning protrusion 3203 of the swing arm 320 has a sliding inclined surface 32031 matched with the second guide inclined surface 9302 and a positioning end surface 32032 matched with the second limiting end surface 9304. Optionally, the sliding inclined surface 32031 and the positioning end surface 32032 can be a cylindrical surface or a part of a cylindrical surface.

[0093] The first guide slope 9301 is in contact with the first positioning slope 72011, the first supporting end surface 72012 and the first limiting end surface 9303 have a first gap in the axial direction of the secondary shaft 301; and the second guide slope 9302 is in contact with the sliding slope 32031, and the second limiting end surface 9304 and the positioning end surface 32032 have a second gap in the axial direction of the secondary shaft.

[0094] In some embodiments, the secondary shaft assembly 300 further comprises a resilient member 302, which is arranged on the radially inner side of the second rotating support 310 and abuts against the second rotating support 310 along the third center line X3. Specifically, the resilient member 302 abuts against the first gear 311, so that the resilient member can apply a resilient force on the first gear 311 and the second gear 312. Thus, the second rotating support is pressed by the resilient member 302, and when the first gear 311 and the second gear 312 are disengaged, the first gear 311 needs to overcome the resilient force of the resilient member 302.

[0095] When the second rotating support 310 is pressed, the first guide slope 9301 can move along the first positioning slope 72011 of the lower housing 702, and the second guide slope 9302 can move along the sliding slope 32031 of the swing arm 320, while the swing arm 320 can move in the radial direction of the secondary shaft 301. Under the action of the resilient member 302, the second rotating support 310 can always maintain a pressed state, and the use of the gap elimination element 930 can eliminate the gear backlash between the engaging part 3201 and the second rotating support 310, so that the engaging part 3201 and the second rotating support 310 can always be in contact, thereby reducing the shaking of the lens holder.

[0096] In some embodiments, the first positioning protrusion 3203 and the second positioning protrusion 3204 are connected by a positioning end surface 3205, and the positioning end surface 3205 has a gap with the second positioning platform 7202 in the direction perpendicular to the axial direction of the secondary shaft 301, so as to allow the swing arm 320 to approach the second rotating support 310 when the second rotating support 310 is pressed.

[0097] Optionally, the second guide slope 9302 and the second limiting end surface 9304 are cylindrical surfaces, and the sliding slope 32031 and the positioning end surface 32032 are cylindrical surfaces matched with the second guide slope 9302 and the second limiting end surface 9304, respectively, so as to facilitate the integral molding during the machining of the swing arm rotating shaft part and reduce the friction during the relative movement between the swing arm 320 and the gap elimination element 930.

[0098] Optionally, the gap-eliminating element 930 further includes a fitting portion 9305, which has a fitting surface 93051 that at least partially abuts against the inner wall of the second gear 312. In other words, the gap-eliminating element can be partially embedded into the second gear 312 through the fitting portion, thereby achieving positioning of the gap-eliminating element 930 on the second rotary support 310 and making the structural layout more compact.

[0099] Optionally, the housing 700 of the actuator 100 is connected to the housing 800 of the rearview mirror via a mounting base 600.

[0100] The first end of the housing 700 (i.e., the other end of the housing) and the first end of the mounting base 600 (i.e., the other end of the mounting base, such as...) Figure 8 The right end of the connector is rotatable. For example, as... Figure 8 and Figure 9 As shown, the right end of the mounting base 600 has a hollowed-out mounting shaft hole 601 to facilitate the assembly of the actuator 100. Furthermore, a semi-hollowed-out bushing structure D can be used to achieve a rotatable connection between the housing 700 and the mounting base 600, facilitating the opening and closing of the housing and the mounting base 600. Optionally, as... Figure 9 As shown, the mounting shaft hole 601 (i.e., guide sleeve 601) includes an upper part 611 and a lower part 612. The upper part 611 (i.e., upper sleeve 611) and the lower part 612 (i.e., lower sleeve 612) are offset in the axial direction of the mounting shaft hole to facilitate the assembly of the actuator 100 housing 700.

[0101] That is, the first end of the mounting base 600 has a guide sleeve 601 disposed along the second center line X2. The guide sleeve 601 includes an upper half-sleeve 611 and a lower half-sleeve 612, wherein the upper half-sleeve 611 and the lower half-sleeve 612 are misaligned in the axial direction of the guide sleeve 601. The other end of the housing 700 has a guide shaft 7022 disposed along the second center line X2. The guide shaft 7022 is inserted into the guide sleeve 601 between the upper half-sleeve 611 and the lower half-sleeve 612.

[0102] During assembly, the guide shaft 7022 is inserted into the upper half-sleeve 611 from above the lower half-sleeve 612, meaning that the two axial parts of the guide shaft 7022 are located in the lower half-sleeve 612 and the upper half-sleeve 611, respectively. Because the upper half-sleeve 611 and the lower half-sleeve 612 are staggered, with the upper half-sleeve 611 open upwards and the lower half-sleeve 612 open downwards, the guide shaft is easily inserted.

[0103] At the second end of the mounting base 600 (i.e., one end of the mounting base 600, such as...) Figure 8The second end of the housing 700 can be fully located within the second end of the mount 600, and the second end of the housing 700 (i.e. one end of the housing 700) can be spaced apart from the second end of the mount 600 due to the length of the mount 600 being longer than the length of the lower housing 702 of the actuator. The spacing between the second end of the housing 700 and the second end of the mount 600 defines a receiving cavity in the mount 600. The housing 700 has a mounting hole, which can be defined by the upper housing 701 and the lower housing 702 of the actuator, and the mounting hole is shaped to cooperate with the pivot portion 3202 of the swing arm 320. The pivot portion 3202 of the swing arm 320 can be inserted through the housing 700 along the axis of the pivot portion 3202 and detachably mounted in the receiving cavity. In other words, one end of the housing 700 has a mounting hole defined along the second centre line X2, and the pivot portion 3202 is inserted through the mounting hole along the second centre line X2 and detachably connected to one end of the mount 600. It can be appreciated that the mount 600, the housing 700 and the pivot portion 3202 can collectively form a shafting support device. In other embodiments, the pivot portion 3202 can be replaced by a separate pivot shaft, and the mount and the housing can collectively form a shafting support device with the separate pivot shaft. The housing and the mount of the shafting support device can be flexibly docked when assembled, and can support tool-free quick insertion of the pivot shaft, which greatly improves the assembly efficiency. The detachable connection of the device also facilitates replacement and maintenance of the components.

[0104] In some embodiments, as shown in FIGS. 5(a) and 5(b), Figure 8 , Figures 10 to 11 The second end of the mount 600 can further be provided with an elastic member 602, which can be pre-assembled to the second end of the mount 600. The elastic member 602 is used to deform to facilitate installation of the swing arm 320 in the receiving cavity and to restore to its original shape to limit the pivot portion 3202 after the installation process is completed. For example, the elastic member 602 has deformability, so that it can selectively stop or allow the pivot portion 3202 to pass through and be placed in the receiving cavity. Specifically, during installation of the pivot portion 3202 of the swing arm 320 in the receiving cavity, the pivot portion 3202 comes into contact with the elastic member 602. Since the pivot portion 3202 is rigid, it can push the elastic member 602 to deform to allow the pivot portion 3202 to fully enter the receiving cavity as the contact time continues. When the pivot portion 3202 is fully installed in the receiving cavity, the elastic member 602 is no longer pressed by the pivot portion 3202 and restores to its original shape. At this time, the elastic member 602 can stop the pivot portion 3202 from leaving the receiving cavity.

[0105] Optionally, as shown in FIGS. 5(a), 5(b), Figure 8 , Figures 10 to 11As shown, the elastic component 602 can be a U-shaped component and is fitted to the end surface of the second end of the mounting base 600. The shaft portion 3202 has a prismatic surface 32021 on both sides perpendicular to the second center line X2. The prismatic surface 32021 has a trapezoidal cross section perpendicular to the axis of the shaft portion 3202. In some embodiments, the trapezoidal cross section has a first side, a second side, a third side and a fourth side, wherein the first side is located on the side of the shaft portion 3202, the second side is parallel to the first side and away from the side of the shaft portion 3202, the third side is an inclined side close to the mounting base 600, and the fourth side is an inclined side away from the mounting base 600. Correspondingly, in the direction along the axis of the shaft portion 3202, the prismatic surface 32021 has a prismatic surface corresponding to the second side, a first side corresponding to the third side and a second side corresponding to the fourth side. During the process of installing the shaft portion into the accommodating cavity, the first side pushes the U-shaped elastic component 602 to open until the prismatic surface abuts against the U-shaped elastic component 602. As the installation proceeds, the prismatic surface 32021 slides through the U-shaped elastic component 602 in the direction towards the mounting base 600 until the shaft portion 3202 is completely installed into the accommodating cavity. At this time, the second side is limited by the U-shaped elastic component 602, and the shaft portion 3202 is stopped from being separated from the accommodating cavity.

[0106] Optionally, the length of the third side can be longer than the length of the fourth side. In this way, the installation of the shaft portion 3202 can be facilitated and the stopping of the shaft portion 3202 by the elastic component 602 can be enhanced.

[0107] Optionally, as shown in Figure 12 and Figure 13 , the housing 700 of the actuator 100 has a mounting portion 7021. Correspondingly, the housing of the rearview mirror has a limiting portion 801. The mounting portion 7021 can be fitted with the limiting portion 801. The limiting portion 801 and the mounting portion 7021 have a gap G in the radial direction. A deformable sealing member 900 can be arranged on the radially inner side of the limiting portion 801 and abuts against the mounting portion 7021 along the circumferential direction of the mounting portion 7021. That is, the deformable sealing member 900 is arranged in the gap G. The gap G is used to accommodate the deformable sealing member 900. In this way, the stability of the actuator 100 can be further enhanced and the abnormal sound of the rearview mirror can be reduced.

[0108] Optionally, as shown in Figure 14 , the sealing member 900 can be an annular component, and the annular component has a very small gap Q between the two ends, for example, the gap Q between the two ends of the annular component can be 0-3 mm. Further, the sealing member 900 can be C-shaped, and the gap between the two ends of the C-shaped component can be 0-3 mm. The sealing member 900 can be made of self-lubricating material to reduce the friction between the limiting portion 801 and the mounting portion 7021.

[0109] Further, as shown inFigure 14 As shown, at least one group of small grooves A can be formed on the outer surface of the sealing member 900 to form a groove group, and the groove group is formed by two small grooves A with a small interval, and a deformation part 901 is defined between the two small grooves A. Due to the presence of the deformation part 901, the mounting part 7021 of the actuator 100 can be expanded to facilitate installation during the process of being mounted to the limiting part 801 of the rearview mirror housing.

[0110] Optionally, a plurality of groove groups can be formed on the outer surface of the sealing member 900, and the distance between every two groove groups is greater than the distance between the two small grooves A of a groove group. In this way, the surface of the sealing member can have a plurality of deformation parts 901 to further enhance the convenience of installation of the mounting part 7021.

[0111] In embodiments of the present disclosure, as shown in Figure 2 and Figure 15 The actuator 100 further includes an intermediate housing 703. The intermediate housing 703 can be used to support and position the first drive assembly 400 and the second drive assembly 500.

[0112] In some embodiments, the first drive assembly 400 includes a first motor 401 and a first transmission assembly 402, and the first motor 401 is connected to the first rotating support 210 through the first transmission assembly 402; the second drive assembly 500 includes a second motor 501 and a second transmission assembly 502, and the second motor 501 is connected to the second rotating support 310 through the second transmission assembly 502.

[0113] The intermediate housing 703 is provided with limiting parts for accommodating the first motor 401 and the second motor 501 respectively. The intermediate housing 703 is also provided with a plug-in part 713 for accommodating a buffer 720. The buffer 720 can be plugged into the plug-in part 713 and abut against the first motor 401 and / or the second motor 501, so that axial vibration from the first motor 401 and / or the second motor 501 can be absorbed during operation of the motor, improving the stability of the actuator 100.

[0114] As shown in Figure 4 In a possible technical solution, the first transmission assembly 402 includes a first worm 411 coaxially fixedly connected to the motor shaft of the first motor 401, a first worm wheel 412 engaged with the first worm 411, and a second worm 413 coaxially fixedly connected to the first worm wheel 412, a second worm wheel 414 engaged with the second worm 413, and a third worm 415 coaxially connected to the second worm wheel, and the third worm 415 is engaged with the first rotating support 210.

[0115] As shown in Figures 5(a) to 5(b)As shown, in one feasible technical solution, the second transmission assembly 502 includes a fourth worm 511 coaxially fixedly connected to the motor shaft of the second motor 501, a third worm wheel 512 meshing with the fourth worm 511, a fifth worm 513 coaxially fixedly connected to the third worm wheel 512, a fourth worm wheel 514 meshing with the fifth worm 513, and a sixth worm 515 coaxially fixedly connected to the fourth worm wheel 514. The sixth worm 515 meshes with the second rotary support 310.

[0116] like Figure 3 As shown, in some embodiments, the spindle assembly 200 further includes a spring element 202, which is located radially inside the first rotary support 210 and abuts against the first rotary support 210 along the first centerline X1. Specifically, the spring element 202 abuts against the sliding ring 211 so that a spring force can be applied to the sliding ring 211 and the drive ring 212. When the sliding ring and the drive ring disengage, the sliding ring 211 needs to overcome the spring force of the spring element 202.

[0117] For example, elastic element 202 and elastic element 302 can both be cylindrical springs.

[0118] A second aspect of this disclosure provides a vehicle that includes a rearview mirror as described in the first aspect.

[0119] Since the structure, working principle and beneficial effects of the rearview mirror have been described in the embodiments of the first aspect, the content of which is incorporated herein by reference, the description is omitted here.

[0120] The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of this disclosure. It should be understood that the above descriptions are merely specific embodiments of this disclosure and are not intended to limit the scope of protection of this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A shaft support device, characterized in that, The device includes a rotating shaft, a mounting base, and a housing, wherein one end of the housing has a mounting hole disposed along a second center line, the rotating shaft passes through the mounting hole along the second center line, and is detachably connected to one end of the mounting base.

2. The shaft support device according to claim 1, characterized in that, The other end of the mounting base has a guide sleeve arranged along the second center line. The guide sleeve includes an upper half and a lower half, wherein the upper half and the lower half are misaligned in the axial direction of the guide sleeve. The other end of the housing has a guide shaft arranged along the second center line, and the guide shaft is inserted into the guide sleeve from between the upper half and the lower half.

3. An actuator for a vehicle, characterized in that, It includes the shaft support device as described in claim 1 or 2.

4. The actuator according to claim 3, characterized in that, The rotating shaft is arranged along the second center line, and the rotating shaft is part of the swing arm, which is disposed on the secondary shaft assembly. The actuator further includes a second drive assembly, wherein the sub-shaft assembly cooperates with the second drive assembly to drive the housing of the rearview mirror to rotate about a second center line.

5. The actuator as claimed in claim 3, characterized in that, The actuator further includes a spindle assembly and a first drive assembly. The spindle assembly is drively connected to the first drive assembly. The spindle assembly is used to convert the rotational motion of the first drive assembly itself into rotational motion in which the first drive assembly drives the actuator housing to rotate around a first center line. The first center line and the second center line are not parallel to each other.

6. The actuator as claimed in claim 4, characterized in that, The secondary shaft assembly also includes: Secondary shaft; The second rotary support is sleeved on the outer side of the secondary shaft and is connected to the second drive assembly for transmission. The second rotary support is used to rotate around the third center line using the torque output by the second drive assembly. The third center line is not parallel to the second center line. The swing arm also includes a meshing part, which meshes with the second rotary support for transmission. The meshing part uses the torque output by the second rotary support to swing around the second center line, thereby driving the outer shell to rotate around the second center line.

7. The actuator as claimed in claim 6, characterized in that, The secondary shaft assembly also includes: A gap-eliminating element is sleeved on the outside of the secondary shaft and abuts against the second rotary support in the axial direction of the secondary shaft. The gap elimination element includes a first guide ramp that mates with the housing and a second guide ramp that mates with the swing arm. The first guide ramp and the second guide ramp are used to guide the swing arm to move toward the third center line when the second rotary support is compressed, so as to eliminate the gap between the engagement part and the second rotary support.

8. The actuator as claimed in claim 7, characterized in that, The gap elimination element further includes a first limiting end face and a second limiting end face, and the housing further includes: The first positioning platform includes a first positioning inclined surface and a first supporting end surface. The first positioning inclined surface is used to cooperate with the first guiding inclined surface, and the first supporting end surface is used to cooperate with the first limiting end surface. The swing arm further includes a first positioning protrusion, which has a sliding inclined surface that mates with the second guide inclined surface and a positioning end surface that mates with the second limiting end surface. Wherein, the first guide slope is in contact with the first positioning slope, and the first support end face and the first limiting end face have a first gap in the axial direction of the secondary shaft; and the second guide slope is in contact with the sliding slope, and the second limiting end face and the positioning end face have a second gap in the axial direction of the secondary shaft.

9. The actuator as claimed in claim 8, characterized in that, The housing further includes a second positioning platform, and the rotating shaft further includes a second positioning protrusion. There is a gap between the first positioning protrusion and the second positioning protrusion, and the second positioning platform is inserted into the gap in a direction parallel to the second center line.

10. The actuator as claimed in claim 7, characterized in that, The second rotary support includes a first gear and a second gear that abut against each other along the longitudinal centerline and are detachable from each other in the circumferential direction. The swing arm meshes with the first gear, and the output end of the second drive assembly meshes with the second gear. The gap elimination element further includes a fitting portion with a fitting surface that is at least partially in contact with the inner wall of the second gear.

11. The actuator as claimed in claim 6, characterized in that, The rotating shaft and the meshing part are an integral structure.

12. A rearview mirror, characterized in that, include: shell; as well as The actuator according to any one of claims 3 to 11 is disposed within the housing.

13. A vehicle, characterized in that, Includes the rearview mirror as described in claim 12.

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