Shaft end fixing piece, shaft sleeve assembly, actuator for vehicle, rearview mirror and vehicle

Abstract

The invention provides a shaft end fixing piece, a shaft sleeve assembly, an actuator used for a vehicle, a rearview mirror and the vehicle, and the shaft end fixing piece is a deformable elastic component, deforms when the shaft end of a rotating shaft is installed on an installation base so as to facilitate installation, and restores to the original shape after the installation process is finished so as to limit the shaft end.

Description

[0001] The present application claims priority to Chinese Utility Model 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 the present application. TECHNICAL FIELD

[0002] The present disclosure relates to the field of automotive technology, in particular, to a shaft end fixing member, a shaft sleeve assembly, an actuator for a vehicle, a rearview mirror and a vehicle. BACKGROUND

[0003] A vehicle rearview mirror is generally fixedly installed on both sides of the vehicle body, and its angle adjustment mainly relies on manual operation or electric adjustment. With the development of the automotive industry and the advancement of technology, higher requirements are placed on the functionality and flexibility of the rearview mirror. Drivers have different needs for the field of view of the rearview mirror 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, all of which affect the effective use of the rearview mirror. In addition, in bad weather or special road conditions, a 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, there is also the problem of complicated assembly and insufficient stability of the actuator in the rearview mirror. SUMMARY

[0006] The purpose of the present disclosure is to provide a shaft end fixing member, a shaft sleeve assembly, an actuator for a vehicle, a rearview mirror and a vehicle to solve the problems mentioned in the background or other similar problems.

[0007] The first aspect of the present disclosure provides a shaft end fixing member for fixing a rotating shaft in a mounting seat, the shaft end fixing member being a deformable elastic member that deforms to facilitate installation when the shaft end of the rotating shaft is installed in the mounting seat, and returns to its original shape to limit the shaft end after the installation process is completed.

[0008] According to an embodiment of the present disclosure, the mounting seat has a receiving cavity, the shaft end fixing member is a curved structure arranged around the receiving cavity, and the elastic member has two free ends that allow it to expand.

[0009] According to an embodiment of the present disclosure, the receiving cavity is located on the inside of the elastic member, and the elastic member can expand to allow the shaft end to pass when the shaft end extends into the receiving cavity, and return to its original shape to limit the shaft end from leaving the receiving cavity after the shaft end enters the receiving cavity.

[0010] According to an embodiment of the present disclosure, the elastic component is a U-shaped component.

[0011] A second aspect of the present disclosure also provides a shaft sleeve assembly, which comprises the shaft end fixing member according to the first aspect of the present disclosure and the mounting seat.

[0012] According to an embodiment of the present disclosure, one end of the mounting seat is provided with a seating portion, which comprises a receiving groove in communication with the receiving cavity of the mounting seat, and the elastic component is inserted into the receiving groove.

[0013] According to an embodiment of the present disclosure, the shaft end has a pressing boss protrudingly arranged on the outer sidewall of the shaft end, which is used to press the elastic component to expand when the shaft end extends into the receiving cavity of the mounting seat.

[0014] According to an embodiment of the present disclosure, the shaft end further has a shaft core, and the pressing boss is arranged on both sides of the shaft core in a direction perpendicular to the shaft axis of the shaft end.

[0015] According to an embodiment of the present disclosure, the pressing boss has a pressing slope for pressing the elastic component.

[0016] According to an embodiment of the present disclosure, the cross section of the pressing boss has a first side, a second side, a third side and a fourth side, the first side is located on the side of the shaft core, the second side is parallel to the first side and away from the side of the shaft core, the third side is a bevel close to the mounting seat, and the fourth side is a bevel away from the mounting seat; the second side extends along the axis direction of the shaft end to form a prism surface of the pressing boss, the third side extends along the axis direction of the shaft end to form a first side surface of the pressing boss, the fourth side extends along the axis direction of the shaft end to form a second side surface of the pressing boss, the included angle between the first side surface and the prism surface is greater than the included angle between the second side surface and the prism surface, and the first side surface is the pressing slope.

[0017] A third aspect of the present disclosure also provides an actuator for a vehicle, which comprises the shaft sleeve assembly according to the second aspect of the present disclosure and a shaft end.

[0018] According to an embodiment of the present disclosure, the shaft end is arranged along a second center line and 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 shell of the rearview mirror to rotate around the second center line.

[0019] According to an embodiment of the present disclosure, the actuator further comprises a housing for mounting the sub-shaft assembly, and the housing is connected to the housing of the rearview mirror through the mounting base.

[0020] According to an embodiment of the present disclosure, one end of the housing has a mounting hole arranged along the second center line, and the shaft end of the rotating shaft passes through the mounting hole along the second center line, and the mounting hole corresponds to and communicates with the accommodating cavity along the second center line.

[0021] According to an embodiment of the present disclosure, the swing arm further comprises an engaging portion integrally formed with the shaft end, and the connecting portion between the engaging portion and the shaft end has a flange structure arranged around the outer periphery of the shaft end; and the housing has a positioning clamping groove, and the flange structure is rotatably embedded in the positioning clamping groove.

[0022] According to an embodiment of the present disclosure, the actuator further comprises a main shaft assembly and a first driving assembly, and the main shaft assembly and the first driving assembly cooperate to drive the housing of the rearview mirror to rotate around a first center line, and the first center line and the second center line are not parallel to each other.

[0023] The fourth aspect of the present disclosure also provides a rearview mirror, comprising: a housing; and an actuator for a vehicle provided in the housing according to the third aspect of the present disclosure.

[0024] The fifth aspect of the present disclosure provides a vehicle comprising the rearview mirror provided in the fourth aspect of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure taken in conjunction with the accompanying drawings. It is to be understood that the drawings are to be used in conjunction with the description. It is to be understood that the drawings are to be used in conjunction with the description. Obviously, many modifications and changes can be made to the embodiments of the present disclosure described in the description without departing from the spirit and scope of the present disclosure. In the drawings:

[0026] Figure 1 A cross-sectional view of a rearview mirror according to an embodiment of the present disclosure is schematically shown.

[0027] Figure 2 A partial perspective view of a rearview mirror according to an embodiment of the present disclosure is schematically shown.

[0028] Figure 3 A partial cross-sectional view of a rearview mirror according to an embodiment of the present disclosure is schematically shown.

[0029] Figure 4 A perspective view of a main shaft assembly and a first driving assembly of a rearview mirror according to an embodiment of the present disclosure is schematically shown.

[0030] Figure 5(a) schematically illustrates a perspective view of a sub-shaft assembly and a second drive assembly of a rearview mirror according to an embodiment of the present disclosure.

[0031] Figure 5(b) schematically illustrates a perspective view of a sub-shaft assembly and a second drive assembly of another rearview mirror according to an embodiment of the present disclosure.

[0032] Figure 6 Figure 6(a) schematically illustrates a perspective view of a drive ring, a sliding ring and a main shaft of a rearview mirror according to an embodiment of the present disclosure.

[0033] Figure 7 Figure 6(b) schematically illustrates a perspective view of a first gear and a second gear of a rearview mirror according to an embodiment of the present disclosure.

[0034] Figure 8 Figure 7(a) schematically illustrates a partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure.

[0035] Figure 9 Figure 8(a) schematically illustrates a perspective view of a mounting seat according to an embodiment of the present disclosure.

[0036] Figure 10 Figure 9(a) schematically illustrates a partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure.

[0037] Figure 11 Figure 10(a) is an enlarged view of a partial cross-sectional view of a rearview mirror. Figure 9

[0038] Figure 11(a) schematically illustrates a partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure. Figure 12

[0039] Figure 12(a) schematically illustrates an assembly view of a rearview mirror housing and an elastic component according to an embodiment of the present disclosure. Figure 13

[0040] Figure 13(a) schematically illustrates a schematic view of an elastic component according to an embodiment of the present disclosure. Figure 14

[0041] Figure 14(a) schematically illustrates a partial cross-sectional view of a rearview mirror according to another embodiment of the present disclosure. Figure 15

[0042] Figure 15(a) schematically illustrates a structural schematic view of a sliding ring and a drive ring of a first rotary support in an engaged state according to an embodiment of the present disclosure. Figure 16

[0043] Figure 16(a) schematically illustrates a structural schematic view of a sliding ring and a drive ring of a first rotary support in a disengaged state according to an embodiment of the present disclosure. Figure 17

[0044] ​Figure 18 A structural schematic diagram of the first gear and the second gear in a meshing state according to an embodiment of the present disclosure is schematically shown.

[0045] Figure 19 A structural schematic diagram of the first gear and the second gear in a disengaging state according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0046] To make the above objectives, features and advantages of the disclosure more apparent, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present 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 to one of ordinary skill in the art 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.

[0047] The terms used herein are merely used 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.

[0048] All terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of the specification, and should not be interpreted in an idealized or overly formal manner.

[0049] In the case of using expressions similar to "at least one of A, B, and C, etc.", it should be generally interpreted as including at least one of the items enumerated, but not limited to the items enumerated (e.g., including at least one of A, B, and C, etc. should be interpreted to include A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B, and C together, etc.). The terms "first", "second", etc. are used only for the purpose of description, and cannot be construed as indicating or implying relative importance or implying the number of the technical features indicated. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0050] An actuator according to an embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.

[0051] As Figures 1-19As shown, the actuator 100 of this embodiment can be disposed within the housing 800 of a vehicle's rearview mirror. The housing of the rearview mirror may include an upper housing (not shown) and a lower housing. A lens of the rearview mirror can be mounted on the upper housing. The lens may or may not be part of the rearview mirror of this embodiment. The lower housing is detachably connected to the upper housing. The actuator 100 can be mounted on the lower housing. Further, the actuator housing 700 includes at least an upper housing 701 and a lower housing 702. Specifically, the actuator housing 700 can be mounted on the rearview mirror housing 800. The housing 800 may have a longitudinal centerline and a transverse centerline. The longitudinal centerline can serve as the rotation center of the rearview mirror in the horizontal direction (referred to as the in & out direction), and the transverse centerline can serve as the rotation center of the rearview mirror in the vertical direction (referred to as the up & down direction). For ease of distinction, the rotation of the rearview mirror in the vertical direction around the transverse centerline can be referred to as oscillation.

[0052] like Figure 3 As shown, actuator 100 defines a longitudinal centerline X1 and a lateral centerline X2 that are identical to the rearview mirror housing. The longitudinal centerline X1 can serve as the rotation center of the rearview mirror in the horizontal direction (referred to as the in & out direction), and the lateral centerline X2 can serve as the rotation center (also referred to as the swing center) of the rearview mirror in the vertical direction (referred to as the up & down direction). For ease of description, the longitudinal centerline X1 can also be referred to as the first centerline, and the lateral centerline X2 can also be referred to as the second centerline.

[0053] The actuator 100 includes a main shaft assembly 200, a secondary shaft assembly 300, a first drive assembly 400, and a second drive assembly 500. The first drive assembly 400 and the second drive assembly 500 are independent of each other. The first drive assembly 400 cooperates with the main shaft assembly 200 to drive the rearview mirror housing to rotate about a first centerline X1. The second drive assembly 500 cooperates with the secondary shaft assembly 300 to drive the rearview mirror housing to rotate about a second centerline X2. It can be seen that the first centerline X1 and the second centerline X2 are not parallel. In some embodiments, the first centerline X1 and the second centerline X2 are perpendicular to each other.

[0054] The main spindle assembly 200 is disposed along the first center line X1, meaning that the axis of the main spindle assembly 200 can coincide with the first center line X1. The secondary spindle assembly 300 can be disposed along the third center line X3. In some embodiments, the first center line X1 and the third center line X3 can be parallel to each other.

[0055] In embodiments of the present disclosure, the main shaft assembly 200 is in driving 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 rotation of the housing 800 around the first center line X1.

[0056] The main shaft assembly 200 at least includes a main shaft 201 and a first rotation support 210. The first center line X1 can be regarded as the central 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 the support and fixation of the main shaft 201.

[0057] As shown in Figure 2 , Figure 3 , Figure 4 The first rotation support 210 is sleeved outside the main shaft 201 and is in driving connection with the first driving assembly 400, and is configured to support the rotation movement of the housing 800 around the longitudinal center line X1 (i.e. the rotation movement in the in&out direction). The first rotation support 210 can be kept circumferentially stationary 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 around the longitudinal center line X1.

[0058] As shown in Figure 2 , Figure 3 , FIGS. 5(a) and 5(b), the secondary shaft assembly 300 includes a secondary 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 central axis of the secondary shaft 301.

[0059] The second rotation support 310 is sleeved outside the secondary shaft 301 and is in driving connection with the second driving assembly 500, and is configured to support the rotation movement of the housing 800 around the second center line X2 (i.e. the swing movement in the up&down direction).

[0060] As shown in FIGS. 5(a) and 5(b), the swing arm 320 includes an engaging portion 3201 and a pivot portion 3202. Optionally, the engaging portion 3201 and the pivot portion 3202 can be integrally formed. The engaging portion 3201 of the swing arm 320 is in engaging transmission with the second rotation support 310, and the pivot 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, thereby driving the housing 800 of the rearview mirror to rotate around the second center line X2 through the housing 700 of the actuator.

[0061] In the exemplary embodiment, in order to stabilize the positioning of the swing arm 320, the joint between the engaging portion 3201 and the pivot portion 3202 can be provided with a flange structure (not shown in the figure) around the outer periphery of the pivot portion 3202, and correspondingly, the housing can be provided with a positioning clamping groove, and the flange structure can be rotatably embedded in the positioning clamping groove to position the swing arm 320 without additional connecting members and allow it to rotate in the positioning clamping groove to achieve the function. In other embodiments, the joint between the engaging portion 3201 and the pivot portion 3202 can also be provided with a recess structure around the outer periphery of the pivot portion 3202, and correspondingly, the housing can be provided with a positioning protrusion to cooperate with the recess structure to achieve positioning. Referring to FIGS. 5(a) and Figure 8 The joint between the engaging portion 3201 and the pivot portion 3202 can also be provided with a recess structure 3203 spaced around the outer periphery of the pivot portion 3202. Correspondingly, the housing can be provided with a plurality of positioning protrusions 7022, and the number of positioning protrusions 7022 matches the number of recess structures 3203, and the shape of the positioning protrusions 7022 matches the shape of the recess structures 3203.

[0062] Further, each positioning protrusion 7022 can be embedded in a recess structure 3203, and the positioning protrusion 7022 can be limitedly rotated relative to the recess structure 3203 around the axis direction of the pivot portion 3202, for example, the positioning protrusion slides along the bottom surface of the recess structure in the recess structure and does not exceed the edge of the recess structure, that is, the rotation angle of the positioning protrusion 7022 is limited. At the same time, the connecting part between the recess structures is tightly matched with the housing, which improves the stability of the actuator structure. As shown in FIGS. 5(a) and Figure 2 , Figure 4 The first driving assembly 400 is arranged in the housing 700 and can be connected with the shell 800, and the first rotation support 210 is engaged with the output end of the first driving assembly 400 to support the first driving assembly 400 together with the shell 800 to rotate around the longitudinal center line X1. Specifically, when the output torque of the first driving assembly 400 is started, since the first rotation 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 engaged with the first rotation support 210 will rotate around the first rotation support 210 and simultaneously rotate together with the shell 800, thereby realizing the rotation of the rearview mirror around the longitudinal center line X1. This adjustment of the rearview mirror can be referred to as electric adjustment in the in&out direction.

[0063] As shown in FIGS. 6(a) and Figure 2As shown in Figures 5(a) and 5(b), the second drive assembly 500 is disposed within the housing 700 and can be connected to the outer casing 800. The second rotary support 310 engages with the output end of the second drive assembly 500 at one location and with the swing arm 320 at the other. Thus, the torque from the second drive assembly 500 is transmitted to the swing arm 320 via the second rotary support 310, causing the outer casing 800 to swing around the second centerline X2. Specifically, when the second drive assembly 500 outputs torque, since the second rotary support 310 can rotate relative to the secondary shaft 301 around the third centerline X3, the second rotary support 310 will rotate around the third centerline X3 due to the torque, and the swing arm 320, which engages with the second rotary support 310, will rotate around the transverse centerline X2 as the second rotary support 310 rotates. Furthermore, the swing arm 320 can swing along with the housing 800 around the second centerline X2, thereby achieving the rotation of the rearview mirror around the second centerline X2. That is, the sub-shaft assembly 300 can utilize the torque output by the second drive assembly 500 to perform rotational motion around the third centerline X3 and swinging motion around the second centerline X2, thereby driving the housing 800 to rotate around the second centerline X2. This adjustment of the rearview mirror can be referred to as electric adjustment in the up and down directions.

[0064] In this embodiment, the first drive assembly 400 and the second drive assembly 500 are housed in the same housing, and the first rotary support 210 for supporting rotational motion and the second rotary support 310 for supporting oscillating motion are respectively sleeved on two parallel main shafts. Because a dual-motor, dual-axis drive is used to control the rotation of the actuator 100 in both in-and-out and up-and-down directions, the movements in the two directions are relatively independent and less prone to interference. This simplifies the rearview mirror design, achieves compact structural integration, improves the operational stability of the actuator 100, and facilitates manufacturing and maintenance.

[0065] like Figure 6 As shown, in some embodiments, the first rotary support 210 includes a sliding ring 211 and a drive ring 212 that abut against each other along a first centerline X1 and are detachably abutting each other in the circumferential direction. The sliding ring 211 is slidable along the first centerline X1 and is prevented from rotating relative to the main shaft 201 about the first centerline X1. The drive ring 212 engages with the output end of the first drive assembly 400. The drive ring 212 responds to different torques received from the first drive assembly 400 and selectively remains fixed or rotatable relative to the sliding ring 211 in the circumferential direction.

[0066] The rearview mirror in this embodiment has both electric adjustment function in the in and out directions and manual adjustment function in the in and out directions.

[0067] When electric adjustment is needed, the first driving assembly 400 is activated, and the first driving assembly 400 outputs a torque (referred to as first electric torque), which is small and insufficient to drive the driving ring 212 out of abutment with the sliding ring 211 in the circumferential direction, i.e., at this time, the driving ring 212 is fixed and cannot rotate relative to the sliding ring 211 in the circumferential direction, thus, 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 electric rotation of the rearview mirror around the first center line X1, thereby achieving electric adjustment of the rearview mirror in the in&out direction.

[0068] When manual adjustment is needed, the hand applies a rotating pushing force (referred to as first manual torque) to the housing 800, which is transmitted to the driving ring 212 via the first driving assembly 400 connected with the housing 800, and the first manual torque is large enough to drive the driving ring 212 out of abutment with the sliding ring 211 in the circumferential direction, i.e., at this time, the driving ring 212 can rotate relative to the sliding ring 211 in the circumferential direction, thus, the housing 800, the first driving assembly 400 and the driving ring 212 rotate together around the main shaft 201, thereby achieving manual rotation of the rearview mirror around the first center line X1, thereby achieving manual adjustment of the rearview mirror in the in&out direction.

[0069] As shown in Figure 16 and Figure 17 In a feasible 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 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 and cannot rotate relative to the sliding ring 211 in the circumferential direction, and when the first protrusion 2121 and the second protrusion 2111 are out of 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 abutment in the circumferential direction.

[0070] As shown in Figure 6 , Figure 16 and Figure 17As shown, 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. 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.

[0071] Further, at least one of the first protrusions 2121 and the second protrusions 2111 is provided with an inclined side surface for guiding the first protrusions 2121 to disengage from the top of the second protrusions 2111 in the circumferential direction, and at least one of the first protrusions 2121 and the second protrusions 2111 is provided with a horizontal end surface allowing the first protrusions 2121 to rotate relative to the second protrusions 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 slide 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.

[0072] The inclined side surface is inclined at an angle relative to the longitudinal center line X1, and the angle is greater than 0 and less than 90°, and the horizontal end surface can be perpendicular to the first center line X1.

[0073] As an example, each first protrusion 2121 has two opposite side surfaces in the circumferential direction which are inclined side surfaces 2122, and each first protrusion 2121 has an end surface facing the sliding ring 211 which is a horizontal end surface 2123; each second protrusion 2111 has two opposite side surfaces in the circumferential direction which are inclined side surfaces 2112, and each second protrusion 2111 has an end surface facing the sliding ring 211 which is a horizontal end surface 2113.

[0074] 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.

[0075] 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 selectively preventing the sliding ring 211 from rotating around the longitudinal center line X1 relative to the main shaft 201 based on different torques output by the first driving assembly 400, and allowing the sliding ring 211 to slide along the longitudinal center line X1 relative to the main shaft 201.

[0076] 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.

[0077] 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.

[0078] As shown in FIGS. 5(a), 5(b) and Figure 7 As shown in FIGS. 5(a), 5(b) and

[0079] The rearview mirror in the 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.

[0080] 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 out of abutment with 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 thus the swing arm 320 engaged with the first gear 311 can drive the housing 800 to swing 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.

[0081] 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 through the swing arm 320 connected with the housing 800, and the second manual torque is large and sufficient to drive the first gear 311 out of abutment with 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 thus 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.

[0082] As shown in Figure 7 , Figure 18 and Figure 19 , in a 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 in abutment and can be disengaged. 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 realized to be in abutment and disengaged in the circumferential direction.

[0083] As shown in Figure 7 , Figure 18 and Figure 19As shown, 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 recesses 3121 arranged at intervals around the third center line X3, when the plurality of third protrusions 3111 and the plurality of recesses 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 recesses 3121 are disengaged, the first gear 311 can rotate relative to the second gear 312.

[0084] As shown in Figure 7 , Figure 18 and Figure 19 , further, at least one of the third protrusions 3111 and the recesses 3121 is provided with an inclined side surface for guiding the third protrusions 3111 to disengage from the top of the recesses 3121 in the circumferential direction, and at least one of the third protrusions 3111 and the recesses 3121 is provided with a horizontal end surface allowing the third protrusions 3111 to rotate relative to the recesses 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 with the first gear 311 has a curvature, and the side surface of the third protrusions 3111 and the recesses 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 recesses 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 protrusions 3111 disengage from the recesses 3121 and contact the upper end surface of the second gear 312), and can continue to rotate along the horizontal end surface until the third protrusions 3111 fall into the second recesses 3121 again.

[0085] 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.

[0086] As shown in Figure 7 , Figure 18 and Figure 19 , exemplarily, 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 recess 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.

[0087] In the examples shown in Figures 5(a) and 5(b), the first gear 311 is a spur gear and the rocker arm 320 is a face gear. The teeth of the meshing part 3201 are arranged in a fan shape and evenly distributed on the arc end of the rocker 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 rocker arm 320 around the second center line X2.

[0088] The structural configuration of the embodiments of this disclosure ensures that when the first gear 311 is driven by the second manual torque, it can still maintain engagement with the rocker arm 320 after being lifted (i.e. disengaged from the groove).

[0089] Optionally, the housing 700 of the actuator 100 is connected to the housing 800 of the rearview mirror via a mounting base 600.

[0090] The first end of the housing 700 and the first end of the mounting base 600 (e.g.) 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 hollow mounting shaft hole 601 to facilitate the assembly of the actuator 100. Furthermore, the housing 700 and the mounting base 600 can be rotatably connected by a semi-hollow bushing structure D to facilitate the opening and closing of the housing and the mounting base 600.

[0091] Optional, such as Figure 9 As shown, the mounting shaft hole 601 includes an upper portion 611 and a lower portion 612. The upper portion 611 and the lower portion 612 are offset in the axial direction of the mounting shaft hole to facilitate the assembly of the actuator 100 housing 700.

[0092] At the second end of the mounting base 600 (e.g.) Figure 8 Since the length of the mounting base 600 is longer than the length of the lower housing 702 of the actuator, the second end of the housing 700 can be completely located within the second end of the mounting base 600, and the second end of the housing 700 is spaced apart from the second end of the mounting base 600. This space defines a receiving cavity on the mounting base 600. The housing 700 has a mounting hole, for example, defined by the upper housing 701 and the lower housing 702 of the actuator, the shape of which mates with the pivot portion 3202 of the swing arm 320. This allows the pivot portion 3202 of the swing arm to pass through the housing 700 along its axial direction and be detachably mounted in the receiving cavity, wherein the axis of the pivot portion 3202 of the swing arm 320 coincides with the second center line X2. That is, the pivot portion 3202 can pass through the mounting hole along the second center line X2, and the mounting hole corresponds to and communicates with the receiving cavity along the second center line X2.

[0093] In some embodiments, such asFigure 8 , Figures 10-11 As shown in FIG. 6, the second end of the mounting base 600 is further provided with an elastic component 602 (i.e. shaft end fixing member), which can be pre-assembled to the second end of the mounting base 600. The elastic component 602 is used to deform when the swing arm 320 (i.e. rotating shaft) is installed in the accommodating cavity to facilitate installation, and restore to its original shape after the installation process is completed to limit the rotating shaft part 3202 (i.e. shaft end). For example, the elastic component 602 has deformability, so it can selectively stop or allow the rotating shaft part 3202 to pass through to enable it to be placed in the accommodating cavity. Specifically, during the installation of the rotating shaft part 3202 of the swing arm 320 in the accommodating cavity, the rotating shaft part 3202 comes into contact with the elastic component 602. Since the rotating shaft part 3202 is rigid, it can push the elastic component 602 to deform as the contact time continues, so as to allow the rotating shaft part 3202 to completely enter the accommodating cavity. When the rotating shaft part 3202 is completely installed in the accommodating cavity, the elastic component 602 is no longer pressed by the rotating shaft part 3202, and it restores to its original shape. At this time, the elastic component 602 can stop the rotating shaft part 3202 from leaving the accommodating cavity.

[0094] According to an embodiment of the present disclosure, the elastic component 602 is a curved structure arranged around the accommodating cavity. Further, the elastic component 602 has two free ends that allow it to expand. Thus, when the rotating shaft part 3202 is installed in the accommodating cavity, the free ends of the elastic component 602 can expand to allow the rotating shaft part 3202 to pass through.

[0095] In an embodiment of the present disclosure, the accommodating cavity is located inside the elastic component 602, which can expand when the rotating shaft part 3202 extends into the accommodating cavity to allow the rotating shaft part 3202 to pass through, and restore to its original shape after the rotating shaft part 3202 enters the accommodating cavity to limit the rotating shaft part 3202 from leaving the accommodating cavity.

[0096] It can be understood that the cooperation of the elastic component 602 and the mounting base in the embodiment of the present disclosure can not only be used to fix the rotating shaft part 3202 of the swing arm 320, but also can be used as an independent shaft sleeve assembly to fix the rotating shaft.

[0097] In view of this, the embodiment of the present disclosure further provides a shaft sleeve assembly, which comprises a shaft end fixing member (i.e. elastic component 602) and a mounting base as in the embodiment of the present disclosure. Through the cooperation of the shaft end fixing member and the mounting base, the installation and limiting of the rotating shaft can be achieved without the need for additional assembly tools, so as to complete the quick assembly and prevent the rotating shaft from falling off, thereby reducing the assembly difficulty and improving the assembly efficiency.

[0098] Reference Figure 9As shown, the second end of the mounting base 600 can be provided with a seating portion 6001 for seating the elastic member 602. It can be appreciated that the shape of the seating portion 6001 can match the shape of the elastic member 602.

[0099] The seating portion 6001 can be provided with a receiving groove 6002 in communication with the receiving cavity. The elastic member 602 can be inserted into the receiving groove 6002.

[0100] Optionally, as shown in FIG. 5(a) and FIG. 5(b), Figure 8 , Figures 10-11 As shown, the elastic member 602 can be a few-shaped and fitted to the end face of the second end of the mounting base 600. The shaft portion 3202 has extrusion protrusions 32021 on both sides perpendicular to the second center line X2. The shaft portion 3202 (i.e. the shaft end) can also have a shaft core 32022. The extrusion protrusions 32021 are protrudingly arranged on the outer side wall of the shaft end, and are used to extrude the elastic member 602 to expand when the shaft portion 3202 is inserted into the receiving cavity. It can be seen that the extrusion protrusions 32021 are arranged on both sides of the shaft core 32022 in a direction perpendicular to the axis of the shaft portion 3202.

[0101] The extrusion protrusions 32021 have an extrusion slope for extruding the elastic member 602. The cross section of the extrusion protrusions 32021 has a first side, a second side, a third side and a fourth side. The first side is located on the side of the shaft core 32022, the second side is parallel to the first side and away from the side of the shaft core 32022, the third side is a bevel close to the mounting base 600, and the fourth side is a bevel away from the mounting base 600. The second side extends along the axis direction of the shaft end to form a protrusion surface of the extrusion protrusions, the third side extends along the axis direction of the shaft end to form a first side surface of the extrusion protrusions, and the fourth side extends along the axis direction of the shaft end to form a second side surface of the extrusion protrusions. The included angle between the first side surface and the protrusion surface is greater than the included angle between the second side surface and the protrusion surface, and the first side surface is the extrusion slope. It can be appreciated that the axis direction of the shaft core coincides with the axis direction of the shaft end.

[0102] In some embodiments, the extrusion boss 32021 can be a frustum 32021, and the cross-section of the frustum 32021 in the direction perpendicular to the axis of the pivot portion 3202 is trapezoidal. In some embodiments, the trapezoid 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 pivot portion 3202, the second side is parallel to the first side and away from the side of the pivot 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. Accordingly, in the direction extending along the axis of the pivot portion 3202, the frustum 32021 has a frustum surface corresponding to the second side, a first side surface corresponding to the third side, and a second side surface corresponding to the fourth side. During the installation of the pivot portion into the receiving cavity, the first side surface pushes the Z-shaped elastic member 602 to open it until the frustum surface abuts against the Z-shaped elastic member 602. As installation proceeds, the surface of the frustum 32021 slides over the zigzag elastic member 602 in the direction of movement toward the mounting base 600 until it is fully inserted into the receiving cavity. At this time, the second side is restricted by the zigzag elastic member 602, and the pivot portion 3202 is stopped to prevent it from dislodging from the receiving cavity.

[0103] Optionally, the length of the third side can be longer than the length of the fourth side. This facilitates the installation of the pivot 3202 and enhances the stopping effect of the elastic member 602 on the pivot 3202.

[0104] Optional, such as Figure 12 and Figure 13 As shown, the actuator 100 housing 700 has a mounting portion 7021. Correspondingly, the rearview mirror housing has a limiting portion 801. The mounting portion 7021 can be fitted onto the limiting portion 801. The limiting portion 801 and the mounting portion 7021 have a gap G in the radial direction. A deformable seal 900 can be provided radially inside the limiting portion 801 and abuts against the mounting portion 7021 circumferentially. That is, the deformable seal 900 is placed in the gap G. The gap G is used to accommodate the deformable seal 900. This further enhances the stability of the actuator 100 and reduces rearview mirror noise.

[0105] Optional, such as Figure 14 The seal 900 can be an annular component with a very small gap Q between its two ends, for example, the gap Q between the two ends of the annular component can be 0 to 3 mm. Further, the seal 900 can be C-shaped, with a gap of 0 to 3 mm between the two ends of the C-shape. The seal 900 can be made of a self-lubricating material to reduce friction with the limiting part 801 and the mounting part 7021.

[0106] Furthermore, such as Figure 14As 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 installation of the limiting part 801 of the rearview mirror shell.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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 motors, improving the stability of the actuator 100.

[0111] As shown in Figure 4 In one 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 gear 412 engaged with the first worm 411, and a second worm 413 coaxially fixedly connected to the first worm gear 412, a second worm gear 414 engaged with the second worm 413, and a third worm 415 coaxially connected to the second worm gear, and the third worm 415 is engaged with the first rotating support 210.

[0112] As shown in Figures 5(a)-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.

[0113] 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.

[0114] Continue to refer to Figure 3 In some embodiments, the countershaft assembly 300 further includes a spring element 302, which is disposed radially inside the second rotary support 310 and abuts against the second rotary support 310 along the third center line X3. Specifically, the spring element 302 abuts against the first gear 311 so that a spring force can be applied to the first gear 311 and the second gear 312. When the first gear 311 and the second gear 312 disengage, the first gear 311 needs to overcome the spring force of the spring element 302.

[0115] For example, elastic element 202 and elastic element 302 can both be cylindrical springs.

[0116] A second aspect of this disclosure provides a vehicle that includes a rearview mirror as described in the first aspect.

[0117] 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.

[0118] 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 end fixing for securing a rotating shaft within a mounting, characterised in that, The shaft end fixing component is a deformable elastic component that deforms when the shaft end of the rotating shaft is installed on the mounting base to facilitate installation, and returns to its original shape after the installation process is completed to limit the shaft end.

2. The shaft end fixing member according to claim 1, characterized in that, The mounting base has a receiving cavity, the shaft end retainer is a curved structure arranged around the receiving cavity, and the elastic member has two free ends that allow it to expand.

3. The shaft end fixing member according to claim 2, characterized in that, The receiving cavity is located inside the elastic member. The elastic member can expand when the shaft end extends into the receiving cavity to allow the shaft end to pass through, and return to its original shape after the shaft end enters the receiving cavity to prevent the shaft end from leaving the receiving cavity.

4. The shaft end fixing member according to claim 2, characterized in that, The elastic component is shaped like a "Z".

5. A bushing assembly, characterized in that, It includes the shaft end fixing member and the mounting base as described in any one of claims 1 to 4.

6. The bushing assembly according to claim 5, characterized in that, One end of the mounting base is provided with a placement part, the placement part includes a receiving groove, the receiving groove is connected to the receiving cavity of the mounting base, and the elastic member is inserted into the receiving groove.

7. The bushing assembly according to claim 5, characterized in that, The shaft end has a pressing boss that protrudes from the outer side wall of the shaft end. The pressing boss is used to press the elastic member to expand it when the shaft end extends into the receiving cavity of the mounting seat.

8. The bushing assembly according to claim 7, characterized in that, The shaft end also has a shaft core, and the extrusion bosses are disposed on both sides of the shaft core in a direction perpendicular to the shaft end axis.

9. The bushing assembly according to claim 8, characterized in that, The extrusion boss has an extrusion ramp for extruding the elastic member.

10. The bushing assembly according to claim 9, characterized in that, The cross-section of the extrusion boss has a first side, a second side, a third side and a fourth side. The first side is located on the side of the shaft core. The second side is parallel to the first side and away from the side of the shaft core. The third side is an inclined side close to the mounting base. The fourth side is an inclined side away from the mounting base. The second side extends along the axial direction of the shaft end to form the frustum surface of the extrusion boss, the third side extends along the axial direction of the shaft end to form the first side surface of the extrusion boss, and the fourth side extends along the axial direction of the shaft end to form the second side surface of the extrusion boss. The angle between the first side surface and the boss surface is greater than the angle between the second side surface and the boss surface, wherein the first side surface is the extrusion slope.

11. An actuator for a vehicle, characterized in that, It includes the bushing assembly and the shaft end as described in any one of claims 5 to 10.

12. The actuator according to claim 11, characterized in that, The shaft end is positioned along the second centerline and is part of the swing arm, which is located 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.

13. The actuator according to claim 12, characterized in that, The actuator also includes at least a housing for mounting the secondary shaft assembly, the housing being connected to the rearview mirror housing via the mounting base.

14. The actuator according to claim 13, characterized in that, One end of the housing has a mounting hole along the second center line, the shaft end of the rotating shaft passes through the mounting hole along the second center line, and the mounting hole corresponds to and communicates with the receiving cavity of the mounting base along the second center line.

15. The actuator according to claim 13, characterized in that, The swing arm also includes an engagement part, which is integrally formed with the shaft end. The connection between the engagement part and the shaft end has a flange structure arranged around the outer periphery of the shaft end. The housing has a positioning groove, and the flange structure is rotatably embedded in the positioning groove.

16. The actuator according to claim 11, characterized in that, The actuator further includes a spindle assembly and a first drive assembly, which cooperate to drive the housing of the rearview mirror to rotate around a first center line, wherein the first center line and the second center line are not parallel to each other.

17. A rearview mirror, characterized in that, include: shell; as well as The actuator for a vehicle according to any one of claims 11 to 16, which is disposed within the housing.

18. A vehicle, characterized in that, Includes the rearview mirror as described in claim 17.

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