Folding device, rearview device and vehicle

Abstract

The application relates to a folding device, a rearview device and a vehicle. The folding device is connected to a vehicle body and comprises a housing, a folding column penetrating through the housing and connected to the vehicle body, a folding driving assembly arranged in the housing and capable of driving the housing to rotate around a first axis between a folding position and an unfolding position, in the folding position, the housing is close to the vehicle body, in the unfolding position, the housing is transverse to the vehicle body, the first axis is an axis of the folding column, a mounting plate located at one end of the housing, a turnover assembly connecting the mounting plate to the housing, the turnover assembly comprising a turnover column penetrating through the mounting plate and extending into the housing, the turnover column is arranged in a spaced mode with the folding column, the turnover assembly and the mounting plate are relatively rotatable, and a turnover driving assembly at least partially located in the housing and capable of driving the mounting plate to rotate around a second axis relative to the housing, the second axis has an included angle with the first axis. The bearing structures of the folding function and the turnover function are different components, which are not easy to be damaged, have high strength and high precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rearview mirror, in particular to a folding device, a rearview device and a vehicle. BACKGROUND

[0002] As an important part of the automobile safety system, the rearview mirror has experienced the evolution process from mechanical type to electric type and then to intelligent type. The rearview mirror is folded and the mirror surface is adjusted through a shaft body, which is easy to be damaged and affect the transmission accuracy. SUMMARY

[0003] The present application provides a folding device, a rearview device and a vehicle to solve the problem that the common shaft body of the existing folding device is easy to be damaged and affect the transmission accuracy.

[0004] A folding device capable of being connected to a vehicle body, comprising: a housing; a folding column body penetrating the housing and connected to the vehicle body; a folding driving assembly arranged in the housing, the folding driving assembly being capable of driving the housing to rotate around a first axis between a folded position and an unfolded position relative to the vehicle body, in the folded position, the housing is close to the vehicle body, in the unfolded position, the housing is transverse to the vehicle body, the first axis being an axis of the folding column body; a mounting plate located at one end of the housing, and an included angle being present between the first axis and the mounting plate; a turnover assembly connecting the mounting plate to the housing, the turnover assembly comprising a turnover column body penetrating the mounting plate and extending into the housing, the turnover column body being arranged in space from the folding column body, the turnover assembly and the mounting plate being capable of relative rotation; and a turnover driving assembly, at least part of the structure of which is located in the housing, the turnover driving assembly being capable of driving the mounting plate to rotate around a second axis relative to the housing, an included angle being present between the second axis and the first axis.

[0005] In the folding device, the folding driving assembly is capable of driving the housing to rotate around the first axis, the first axis being the axis of the folding column body, so that the folding column body is a bearing column body for folding function. The turnover driving assembly is capable of driving the mounting plate to rotate around the second axis relative to the housing, and the turnover assembly connects the mounting plate to the housing, so that the mounting plate will not fall off relative to the housing, i.e. the turnover assembly is a bearing structure for turnover function. The bearing structures for folding function and turnover function are different parts, which are not easy to be damaged, have better strength and higher accuracy.

[0006] In one of the embodiments, the mounting plate and the turnover assembly are provided with mutually matched turnover structures, the turnover assembly comprises a turnover column body, the turnover structures comprise a turnover groove and a turnover platform, one of the turnover groove and the turnover platform is located at the mounting plate, and the other is located at the end of the turnover column body away from the housing.

[0007] In one of the embodiments, one of the turnover slot and the turnover platform is arranged on the side of the mounting plate away from the shell, and the other of the turnover slot and the turnover platform is arranged on the end of the turnover column away from the shell;

[0008] Alternatively, one of the turnover slot and the turnover platform is arranged on the side of the mounting plate close to the shell, and the other of the turnover slot and the turnover platform is arranged between the shell and the mounting plate and connected with the turnover column.

[0009] In one of the embodiments, the turnover slot comprises an arc-shaped slot, the turnover platform comprises an arc-shaped platform matched with the arc-shaped slot, and the second axis is located on the axis of the arc-shaped slot.

[0010] In one of the embodiments, the folding driving assembly comprises a first actuator and a first worm and a folding transmission gear engaged with each other, the folding transmission gear is fixed on the outer periphery of the folding column, and the first actuator can drive the first worm to rotate relative to the folding transmission gear.

[0011] In one of the embodiments, the folding driving assembly further comprises a first process transmission gear engaged with the output end of the first actuator and the first worm respectively.

[0012] In one of the embodiments, the first process transmission gear is a two-stage gear structure or a worm structure.

[0013] In one of the embodiments, a first folding detection gear coaxial with the folding transmission gear and a second folding detection gear fixed in the shell and engaged with the first folding detection gear are further included, and the second folding detection gear is provided with a folding potentiometer.

[0014] In one of the embodiments, a first protrusion and a first groove matched with each other are arranged between the first folding detection gear and the folding transmission gear, and the assembly surface between the first protrusion and the first groove comprises an inclined surface.

[0015] In one of the embodiments, a mounting shaft fixed on the outer periphery of the folding column is further included, the folding transmission gear is sleeved on the outer periphery of the mounting shaft, at least part of the structure of the mounting shaft is located on the side of the folding transmission gear away from the first folding detection gear, a second protrusion and a second groove matched with each other are arranged between the mounting shaft and the first folding detection gear, and the assembly surface between the second protrusion and the second groove comprises a straight surface.

[0016] In one of the embodiments, the turnover driving assembly comprises a second actuator and a second worm and a turnover transmission gear engaged with each other, the second actuator and the second worm are located in the housing, the turnover transmission gear is fixed to the mounting plate and penetrates the housing, the second actuator can drive the second worm to rotate relative to the turnover transmission gear.

[0017] In one of the embodiments, the turnover driving assembly further comprises a second process transmission gear engaged with the output end of the second actuator and the second worm respectively.

[0018] In one of the embodiments, the second process transmission gear is a two-stage gear structure or a worm structure.

[0019] In one of the embodiments, it further comprises a first turnover detection gear rotating synchronously with the turnover transmission gear, and a second turnover detection gear fixed in the housing and engaged with the first turnover detection gear, the second turnover detection gear is provided with a turnover potentiometer.

[0020] A rearview device comprising the folding device and a reflecting element, the reflecting element is mounted to the mounting plate, in the folding position, the reflecting element is at least partially shielded by the vehicle body, in the unfolding position, the reflecting element is exposed.

[0021] A vehicle comprising the rearview device and a vehicle body, the rearview device is mounted to the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0023] Figure 1 A three-dimensional schematic view of the folding device provided for an embodiment;

[0024] Figure 2 A three-dimensional schematic view of the folding device provided for an embodiment; Figure 1 A three-dimensional schematic view of the folding device provided for an embodiment;

[0025] Figure 3 A three-dimensional schematic view of the folding device provided for an embodiment; Figure 1 An exploded view of the folding device provided for an embodiment;

[0026] Figure 4a A three-dimensional schematic view of the folding device provided for an embodiment; Figure 1 A three-dimensional schematic view of the folding device provided for an embodiment, in which the housing and the mounting plate are removed;

[0027] Figure 4b FIG. 4 shows a three-dimensional schematic view of the folding device of FIG. 1 in another embodiment, with the housing and mounting plate removed; Figure 1

[0028] Figure 4c FIG. 5 shows a three-dimensional schematic view of the folding device of FIG. 1 in yet another embodiment, with the housing and mounting plate removed; Figure 1

[0029] Figure 5 FIG. 6 shows a three-dimensional schematic view of the structure of FIG. 1 from another perspective; Figure 4a

[0030] Figure 6 FIG. 7 shows a three-dimensional schematic view of the structure of FIG. 1 with some of the parts removed; Figure 4a

[0031] Figure 7 FIG. 8 shows an exploded view of the structure of FIG. 1 ; Figure 6

[0032] Figure 8 FIG. 9 shows an exploded view of the folding drive gear, the first folding detection gear, and the assembly shaft;

[0033] Figure 9 FIG. 10 shows a three-dimensional view of the first folding detection gear;

[0034] Figure 10a FIG. 11 shows a three-dimensional schematic view of the folding device of FIG. 1, with the first housing and other parts of the structure removed; Figure 1

[0035] Figure 10b FIG. 12 shows a three-dimensional schematic view of the folding device of FIG. 1 in another embodiment, with the first housing and mounting plate removed; Figure 1

[0036] Figure 11 FIG. 13 shows an exploded view of the structure of FIG. 1. Figure 10a DETAILED DESCRIPTION

[0037] For the purpose of promoting an understanding of the disclosure, the application will now be described in greater detail with reference to the figures. The preferred embodiments of the application are illustrated in the figures. However, the application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0038] ​​​​​​​​It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for the purpose of description only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] The folding device of the present application can be applied to vehicles such as cars, trucks, trailers, engineering vehicles, trains, subways, motorcycles, electric vehicles, bicycles, etc., and can also be used in other fields, including but not limited to ships, automated production lines, machine tools, security monitoring, wheelchairs, toys and models, etc., all within the scope of protection of the present application. The folding device 1 of the present application is applied to vehicles as an example.

[0041] Reference Figure 1 And Figure 2 In an embodiment, the vehicle includes a vehicle body, a folding device 1, and a reflective element, which can be a rearview mirror. It can be understood that as long as the structure has the function of reflecting light, it is within the scope of the reflective element of the present application. The reflective element is directly mounted on the folding device 1, or indirectly mounted on the folding device 1 through other structural members. The folding device 1 is directly mounted on the vehicle body, or indirectly mounted on the vehicle body through other structural members. The folding device 1 can rotate relative to the vehicle body to have a folded position and an unfolded position. In the folded position, the reflective element is close to the vehicle body, and at least part of the reflective surface of the reflective element is covered by the vehicle body. In the unfolded state, the reflective element is transverse to the vehicle body and is completely exposed. Taking a car as an example, in the locked state, the reflective element of the car, i.e. the rearview mirror, is close to the vehicle body, and the reflective surface of the rearview mirror faces the vehicle body and is blocked by the vehicle body, so the user cannot view the state around the vehicle through the rearview mirror. In the unlocked state, such as the vehicle starting or running state, the reflective element of the car, i.e. the rearview mirror, is transverse to the vehicle body, i.e. completely exposed, and the reflective surface of the rearview mirror is substantially perpendicular to the vehicle body, such as the included angle between the vehicle body can be 60°~120°, the user can view the state around the vehicle through the rearview mirror.

[0042] The "close to" described in the present application can be understood as that the reflective surface of the reflective element in the folded state faces the vehicle body and is at least partially blocked by the vehicle body, and can be understood as being relatively close to the vehicle body and being substantially parallel to the vehicle body, for example, the included angle is -60°~60°. The "transverse" described in the present application can be understood as that the reflective surface of the reflective element in the unfolded state is transverse to the vehicle body, is completely exposed, and the reflective surface is substantially perpendicular to the vehicle body, for example, the included angle between the reflective surface and the vehicle body can be 60°~120°.

[0043] Reference Figures 1 to 4a In an embodiment, the folding device 1 comprises a housing 10, a folding column 20 and a mounting plate 30. The housing 10 comprises a first shell 11 and a second shell 12 which are fixedly connected and form a containing space, and at least part of the structure of the folding device 1 is located in the containing space of the housing 10. The size between the mutually facing surfaces of the first shell 11 and the second shell 12 defines the thickness of the housing 10. The folding column 20 extends along the thickness direction of the housing 10 and penetrates the housing 10. The folding column 20 is connected to the vehicle body and is fixedly arranged relative to the vehicle body. Here, the "connection" can be direct connection, that is, the folding column 20 and the vehicle body are in direct contact and fixedly mounted, or indirect connection, that is, the folding column 20 does not contact the vehicle body, but is fixedly mounted on the vehicle body through other structural members. At least part of the structure of the mounting plate 30 is a groove structure, and at least part of the structure of the second shell 12 is accommodated into the mounting plate 30, that is, the mounting plate 30 is connected to one end of the housing 10 in the thickness direction. The folding column 20 has a central axis, that is, a first axis 21, and the parts of the folding device 1 other than the folding column 20 and the elements fixed on the folding column 20 can rotate around the first axis 21, so that the folding device 1 has a folded state and an unfolded state. In the folded position, the housing 10 is close to the vehicle body, and in the unfolded position, the housing 10 is transverse to the vehicle body. Here, the "close to" and the "transverse" can be explained by the aforementioned "close to" and "transverse".

[0044] In an embodiment, the first shell 11 is a plate structure, and the second shell 12 is a groove structure, and the two are fixedly connected through a pin or a buckle. It can be understood that, in order to match the assembly of the internal structural members, the first shell 11 and the second shell 12 can be adaptively modified, such as being provided with holes, protrusions, grooves or other structures, which are all within the protection scope of the present application. In another embodiment, the first shell 11 can also be a groove structure, and the second shell 12 is a plate structure, which is not limited here.

[0045] Reference Figures 1 to 4aIn an embodiment, the folding device 1 comprises a folding driving assembly 50 and a flipping driving assembly 60. The folding driving assembly 50 is arranged in the housing 10 and is capable of driving the housing 10 to rotate around the first axis 21 relative to the vehicle body between the folded position and the unfolded position. The flipping driving assembly 60 is at least partially arranged in the housing 10 and is capable of driving the mounting plate 30 to rotate around the second axis 321 relative to the housing 10. Since the reflective element is directly or indirectly mounted on the side of the mounting plate 30, the reflective element is approximately parallel to the first axis 21 and approximately parallel to the second axis 321, when the mounting plate 30 rotates around the second axis 321 relative to the housing 10, the reflective element rotates synchronously, so that the user can adjust the angle of the reflective element in order to observe the road conditions above or below the rear of the vehicle.

[0046] It can be understood that there is an included angle between the second axis 321 and the first axis 21, such as 30°-90°, and preferably the included angle is 90°. When the included angle between the second axis 321 and the first axis 21 is 90°, they are perpendicular, that is, the second axis 321 is perpendicular to the thickness direction of the housing 10.

[0047] The folding device 1 comprises a flipping assembly 40, which movably connects the mounting plate 30 to the housing 10, so that the mounting plate 30 does not separate from the housing 10. The flipping assembly 40 comprises a flipping column 41 and a flipping base 42, the flipping column 41 penetrates the mounting plate 30 and extends into the housing 10, and the flipping column 41 and the folding column 20 are arranged in a spaced manner, and the extending directions of the two are approximately the same, that is, both approximately extend along the thickness direction of the housing 10. It can be understood that the extending directions of the flipping column 41 and the folding column 20 are approximately the same, that is, there can be an included angle, such as 0°-30°, and the extending directions of the two are approximately the same as the thickness of the housing 10, or there can be an included angle, such as 0°-30°, between the extending directions of the two and the thickness direction of the housing 10. In other embodiments, the included angle between the extending directions of the flipping column 41 and the folding column 20 can be greater than 30°, and the included angle between the extending directions of the two and the thickness of the housing can also be greater than 30°. The flipping base 42 cooperates with the mounting plate 30 in shape, and when the flipping driving assembly 60 drives the mounting plate 30 to rotate around the second axis 321 relative to the housing 10, the flipping base 42 and the mounting plate 30 do not interfere with each other.

[0048] The folding driving assembly 50 can rotate the housing 10 around the first axis 21 which is the axis of the folding column 20, and the folding column 20 is the bearing column of the folding function. The flipping driving assembly 60 can flip the mounting plate 30 around the second axis 321 relative to the housing 10, and the flipping assembly 40 connects the mounting plate 30 to the housing 10 so that the mounting plate 30 will not fall off relative to the housing 10, that is, the flipping assembly 40 is the bearing structure of the flipping function. The bearing structures of the folding function and the flipping function are different parts, which are not easy to damage, have good strength, and high precision.

[0049] With reference to Figure 4a , Figure 5 and Figure 6 , in an embodiment, the folding driving assembly 50 comprises a first actuator 51, a first process transmission gear 52, a first worm 53 and a folding transmission gear 54 which are engaged with each other. The output end of the first actuator 51 drives the first process transmission gear 52 to rotate, the first process transmission gear 52 is engaged with the end gear of the first worm 53, thereby driving the end gear of the first worm 53 to rotate, so that the first worm 53 rotates synchronously. Since the first worm 53 is engaged with the folding transmission gear 54, and the folding transmission gear 54 is fixed to the folding column 20 which is fixedly installed on the vehicle body, when the first worm 53 rotates, the folding transmission gear 54 does not rotate with it, thereby making the first worm 53 rotate around the folding transmission gear 54. Since the first worm is indirectly fixedly connected with the housing 10, the housing 10 and the structural members which are directly or indirectly fixedly installed on the housing 10 rotate together around the folding transmission gear 54 along with the first worm 53.

[0050] In an embodiment, the first actuator 51 can be a micro motor or a driving motor, which has a main part and an output end extending out of the main part. The main part performs corresponding actions after receiving instructions, controls the output end to rotate forward, reverse or stop, thereby controlling the first worm 53 to rotate clockwise, counterclockwise or stop around the folding transmission gear 54, and further making the folding device 1 fold, unfold or fix at a folding state, an unfolding state or a position between the two states.

[0051] In an embodiment, the housing 10 has a length direction and a width direction. The length direction of the housing 10 is substantially perpendicular to the vehicle body in the unfolded state, and the folding column 20 and the flipping column 41 are arranged in the length direction. The width direction of the housing 10 is perpendicular to the length direction of the housing 10 and perpendicular to the thickness direction of the housing 10. The output end of the first actuator 51 extends along the length direction of the housing 10, the axis of the first process transmission gear 52 is arranged along the width direction of the housing 10, and the first worm 53 extends along the width direction of the housing 10.

[0052] With reference to Figure 4aIn an embodiment, the first process transmission gear 52 is a single gear structure, and meshes with the output end of the first actuator 51 and the end gear of the first worm 53, so that the first actuator 51 can drive the first worm 53 to rotate through the first process transmission gear 52.

[0053] Referring to Figure 4b In an embodiment, the first process transmission gear 52 is a two-stage gear structure, and the two gears are coaxially arranged with different gear pitches, which can increase the transmission ratio and in turn increase the transmission speed, i.e. at the same rotational speed of the output end of the first actuator 51, the rotational speed of the first worm 53 can be increased through the two-stage gear structure.

[0054] Referring to Figure 4c In an embodiment, the first process transmission gear 52 is a worm structure, and does not coincide with the output end of the first actuator 51 in the width direction of the housing 10, i.e. the two are arranged side by side in the width direction of the housing 10, and no space for accommodating the first process transmission gear 52 is reserved between the first actuator 51 and the folding column 20, thereby saving space in the length direction of the housing 10 and reducing the size of the housing 10 in the length direction.

[0055] Referring to Figures 5 to 7 In an embodiment, the folding device 1 further comprises a first folding detection gear 55, a second folding detection gear 57, and a folding potentiometer 58. The first folding detection gear 55 is fixedly installed on the outer periphery of the folding column 20 and is arranged in the thickness direction of the housing 10 with the folding transmission gear 54, and the first folding detection gear 55 and the folding transmission gear 54 are coaxially arranged. The second folding detection gear 57 meshes with the first folding detection gear 55, and the folding potentiometer 58 is installed on the second folding detection gear 57 and is electrically connected to a circuit board (not shown) of the folding device 1, which is fixedly installed in the housing 10. When the first actuator 51 drives the first process transmission gear 52 to rotate, the first process transmission gear 52 drives the first worm 53 to rotate, and the first worm 53 drives the housing 10 and other structural members fixedly installed in the housing 10 to rotate around the folding transmission gear 54. Since the second folding detection gear 57 rotates synchronously with the housing 10, and the first folding detection gear 55 is fixedly installed on the folding column 20 and meshes with the second folding detection gear 57, the second folding detection gear 57 rotates around the first folding detection gear 55, and the folding potentiometer 58 rotates synchronously with the second folding detection gear 57. The folding potentiometer 58 can record the rotation angle of the housing 10 around the first axis 21 and transmit data to the circuit board, so as to record the commonly used position of the housing 10 and intelligently control the folding device 1 to fold or unfold to the habitual position of the user.

[0056] Referring to Figures 7 to 9In an embodiment, the folding device 1 comprises an assembly shaft 56 sleeved on the outer periphery of the folding column 20. The outer periphery of the folding column 20 is provided with a protruding rib portion, and the inner surface of the assembly shaft 56 can be matched with the protruding rib portion of the outer periphery of the folding column 20, so as to hinder the rotation of the assembly shaft 56 relative to the folding column 20, i.e. neither the assembly shaft 56 nor the folding column 20 can rotate around the first axis 21. The folding transmission gear 54 is sleeved on the outer periphery of the assembly shaft 56, and the end portion of the assembly shaft 56 protrudes out of the folding transmission gear 54. The first folding detection gear 55 is located at the end of the folding transmission gear 54 away from the assembly shaft 56, and the first folding detection gear 55 cannot rotate around the first axis 21 relative to the assembly shaft 56, while between the first folding detection gear 55 and the folding transmission gear 54, there is a relative rotation in the presence of a large torsional force.

[0057] In an embodiment, the side of the first folding detection gear 55 facing the folding transmission gear 54 is provided with a first protrusion 551, and the side of the folding transmission gear 54 facing the first folding detection gear 55 is provided with a first recess 541, the first protrusion 551 and the first recess 541 are matched with each other, the first protrusion 551 is assembled into the first recess 541, and the rotation of the folding transmission gear 54 around the first axis 21 relative to the first folding detection gear 55 is hindered. In another embodiment, a recess can also be provided on the first folding detection gear 55, and a protrusion is provided on the folding transmission gear 54, and the matching of the two can also be achieved. It can be understood that, in the absence of human force applied to the shell 10, i.e. in the normal electrically intelligent control condition, the folding transmission gear 54 and the first folding detection gear 55 are both stationary relative to the folding column 20, i.e. neither of them rotates relative to the folding column 20, and there is no relative rotation between them.

[0058] In an embodiment, the inner surface of the first folding detection gear 55 is provided with a second protrusion 552 protruding inwardly, and the outer surface of the assembly shaft 56 is provided with a second recess 561 recessed, the second protrusion 552 is assembled into the second recess 561, and the assembly surface between the second protrusion 552 and the second recess 561 is a straight surface, for example, the second protrusion has a first side surface 5521 which is a straight surface, i.e. the first side surface 5521 is substantially perpendicular to the adjacent surface, and the second recess 561 has a second side surface 5611 which is a straight surface, i.e. the second side surface 5611 is substantially perpendicular to the groove bottom surface of the second recess 561. It can be understood that the error angle is also within the range of substantially perpendicular, and the error angle range can be 0°-30°. In the normal electric intelligent control condition, the assembly shaft 56 and the first folding detection gear 55 are both stationary relative to the folding column 20, i.e. both of them will not rotate relative to the folding column 20, and no relative rotation will occur between them. Even if a larger force is artificially applied, since the assembly surface between the second protrusion 552 and the second recess 561 is a straight surface, the second protrusion 552 will not be separated from the second recess 561. In another embodiment, the inner surface of the first folding detection gear 55 can also be provided with a recess, and the outer surface of the assembly shaft 56 is provided with a protrusion, as long as the assembly surface between the protrusion and the recess is a straight surface, the same axial locking effect can be achieved, i.e. no mutual axial rotation occurs.

[0059] In another embodiment, the included angle between the second side surface 5611 and the groove bottom of the second recess 561 can be less than 90°, such as 80°, 70° or 60°, etc., and correspondingly, on the second protrusion 552, the included angle between the first side surface 5521 and the adjacent surface can be less than 90°, such as 80°, 70° or 60°, etc. It can be understood that the second recess 561 and the second protrusion 552 cooperate with each other, i.e. the included angle between the second side surface 5611 and the groove bottom of the second recess 561 is substantially equal to the included angle between the first side surface 5521 and the adjacent surface. In this embodiment, the second recess 561 is an inner undercut groove, which can better prevent the second protrusion 552 from separating from the second recess 561, i.e. has a better axial locking effect.

[0060] In an embodiment, the assembly surface between the first protrusion 551 and the first recess 541 in the mutual cooperation between the first folding detection gear 55 and the folding transmission gear 54 comprises an inclined surface. The first protrusion 551 has a third side surface 5511, on the first protrusion 551, the included angle between the third side surface 5511 and the adjacent surface is greater than 90°. The first recess 541 has a fourth side surface 5411, the included angle between the fourth side surface 5411 and the bottom of the first recess 541 is greater than 90°. In the absence of external force applied to the shell 10 by human, i.e. in the normal electrically controlled case, the folding transmission gear 54 and the first folding detection gear 55 are both stationary relative to the folding column 20, i.e. neither of them rotates relative to the folding column 20, and no relative rotation occurs between them. When there is no electric control, the first worm 53 is in a stationary state, i.e. no axial rotation occurs, nor rotation around the folding transmission gear 54. At this time, if an external force is applied to the shell 10 by human, the shell 10 and the parts fixed in the shell 10 including the first worm 53 are all subjected to the external force, then the first worm 53 transmits the external force to the folding transmission gear 54, and the folding transmission gear 54 transmits the external force to the first folding detection gear 55, i.e. the external force is borne between the third side surface 5511 and the fourth side surface 5411. Since the third side surface 5511 and the fourth side surface 5411 are inclined surfaces, as the external force increases to a certain threshold, the third side surface 5511 and the fourth side surface 5411 slide relative to each other, the first folding detection gear 55 is lifted up, the folding transmission gear 54 rotates around the first axis 21, until the third side surface 5511 and the fourth side surface 5411 are completely separated, the first protrusion 551 and the first recess 541 are separated, and as the folding transmission gear 54 further rotates, the first protrusion 551 falls into the adjacent first recess 541, and further sliding between the inclined surfaces occurs, until the first protrusion 551 and the adjacent first recess 541 are separated. When the external force greater than the threshold exists, the first protrusion 551 and the first recess 541 repeat the process of separation, sliding between the inclined surfaces, cooperation and separation, until the external force disappears.

[0061] It can be understood that the assembly surface between the first protrusion 551 and the first recess 541 comprises a flat surface, and under the action of an external force reaching a threshold, the first protrusion 551 and the first recess 541 can slide relative to each other and be separated. However, the assembly surface between the second protrusion 552 and the second recess 561 comprises a straight surface or the second recess 561 is an inner buckle groove, so even if the applied external force reaches a threshold that can make the first protrusion 551 and the first recess 541 slide relative to each other and be separated, the external force will not make the second protrusion 552 and the second recess 561 slide relative to each other or even be separated.

[0062] Reference Figure 10a and Figure 11In one embodiment, at least part of the structure of the turnover driving assembly 60 is located in the housing 10, and the turnover driving assembly 60 is capable of driving the mounting plate 30 to rotate about the second axis 321 relative to the housing 10. The second axis 321 and the first axis 21 form an angle, and preferably, the two are substantially perpendicular.

[0063] The turnover driving assembly 60 comprises a second actuator 61, a second process transmission gear 62, a second worm 63 and a turnover transmission gear 32 that are in mesh with each other. The output end of the second actuator 61 drives the second process transmission gear 62 to rotate, the second process transmission gear 62 is in mesh with the end gear of the second worm 63, thereby driving the end gear of the second worm 63 to rotate, so that the second worm 63 rotates synchronously. Since the second worm 63 is in mesh with the turnover transmission gear 32, and the turnover transmission gear 32 is fixed to the mounting plate 30, when the second worm 63 rotates, the turnover transmission gear 54 is driven to rotate, thereby causing the mounting plate 30 to rotate about the second axis 321 relative to the housing 10, and the second axis 321 is the axis of the turnover transmission gear 32. Since the reflective element is directly or indirectly fixed to the mounting plate 30, i.e., the reflective element rotates synchronously with the mounting plate 30.

[0064] In one embodiment, the second actuator 61 can be a micro motor or a driving motor, which has a main body part and an output end extending from the main body. After receiving an instruction, the main body part performs corresponding actions, and controls the output end to rotate forward, reverse or stop, thereby controlling the second worm 63 to rotate forward, reverse or stop, and further controlling the turnover transmission gear 32 to rotate forward, reverse or stop about the second axis 321, and further causing the reflective element to turn over, so that the user can observe the situation above or below the rear of the vehicle body. In the unfolded state, the folded state and any state between the two, the second actuator 61 can drive the mounting plate 30 to turn over about the second axis 321. It can be understood that the first actuator 51 and the second actuator 61 can work synchronously, i.e., the folding device 1 can simultaneously perform the folding and turnover functions.

[0065] In one embodiment, the mounting plate 30 is an integrally formed structure, i.e., the turnover transmission gear 32 and other structures of the mounting plate 30 are integrally formed. The second housing 12 is provided with an opening, so that the turnover transmission gear 32 can extend into the second housing 12, thereby being in mesh with the second worm 63.

[0066] Reference Figure 10a In one embodiment, the second process transmission gear 62 is a single gear structure, which is in mesh with the output end of the second actuator 61 and the end gear of the second worm 63, respectively, so that the second actuator 61 can drive the second worm 63 to rotate through the second process transmission gear 62.

[0067] Reference Figure 10bIn an embodiment, the second process transmission gear 62 is a two-stage gear structure, two gears are coaxially arranged, and the gear spacing is different, which can increase the transmission ratio and in turn increase the transmission speed, i.e. at the same rotation speed of the output end of the second actuator 61, the rotation speed of the second worm 63 can be increased through the two-stage gear structure.

[0068] Referring to Figure 4c In an embodiment, the second process transmission gear 62 is a worm structure, and is arranged in the width direction of the housing 10 and does not coincide with the output end of the second actuator 61, i.e. the two are arranged side by side in the width direction of the housing 10, and no space for accommodating the second process transmission gear 62 is reserved between the second actuator 61 and the folding column 20, thereby saving the space in the length direction of the housing 10 and reducing the size of the housing 10 in the length direction.

[0069] Referring to Figure 2 And Figure 11 In an embodiment, the turning column 41 extends into the housing 10 and is fixed in the housing 10, such as a clamping groove is arranged on the outer periphery of the turning column 41 and is fixed by a clamping ring arranged in the housing 10, so that the turning assembly 40 is fixed to the housing 10 and moves synchronously with the housing 10 or is stationary, i.e. when the mounting plate 30 is turned relative to the housing 10, it is simultaneously turned relative to the turning assembly 40. A turning structure is arranged between the mounting plate 30 and the turning assembly 40, the turning structure includes a turning groove 31 and a turning table 42, one of the mounting plate 30 and the turning assembly 40 is provided with the turning groove 31, and the other is provided with the turning table 42, so that when the mounting plate 30 is turned relative to the turning assembly 40, the turning groove 31 and the turning table 42 cooperate with each other and do not interfere with each other.

[0070] In an embodiment, the turning structure is located on the side of the mounting plate 30 away from the housing 10, the side of the mounting plate 30 away from the housing 10 is provided with one of the turning groove 31 and the turning table 42, and the end of the turning column 41 away from the housing 10 is provided with the other of the turning groove 31 and the turning table 42, so that the turning structure can prevent the mounting plate from being separated from the housing 10. It can be understood that the turning column 41 passes through the hole of the mounting plate 30, and space needs to be reserved for the turning of the mounting plate 30 to prevent interference between the mounting plate 30 and the turning column 41 during turning.

[0071] In another embodiment, the turning structure is located between the mounting plate 30 and the housing 10, one of the turning groove 31 and the turning platform 42 is located on the side of the mounting plate 30 close to the housing 10, and the other one of the turning groove 31 and the turning platform 42 is located between the housing 10 and the mounting plate 30 and is connected with the turning column 41. In this structure, the turning column 41 needs to pass through the mounting plate 30 and extend to the side of the mounting plate 30 away from the housing 10, and the anti-falling structure is arranged on the part of the turning column 41 exposed to the mounting plate 30 to prevent the mounting plate 30 from falling off the housing 10. It can be understood that the hole through which the turning column 41 passes the mounting plate 30 needs to reserve space for the turning of the mounting plate 30 to prevent the mounting plate 30 from interfering with the turning column 41 during turning.

[0072] In an embodiment, the turning groove 31 is an arc-shaped groove, and the turning platform 42 is an arc-shaped platform, the radius of the arc-shaped groove and the arc-shaped platform is substantially equal to the radius of the turning transmission gear 32, so that the axis of the arc-shaped groove and the arc-shaped platform is substantially coincident with the second axis 321, thereby cooperating with the turning of the mounting plate 30 relative to the housing 10 without interference.

[0073] In other embodiments, the turning platform 42 can also have other shapes, such as several rod-shaped structures independent of each other and fixed to the turning column 41, and capable of supporting the mounting plate 30. That is, as long as it can support or connect the mounting plate 30, and the turning platform 42 will not interfere with the mounting plate 30 during the rotation of the mounting plate 30.

[0074] In an embodiment, the first turning detection gear 33 is further arranged on the mounting plate 30, and the first turning detection gear 33 rotates synchronously with the turning transmission gear 32. The folding device 1 further comprises a second turning detection gear 64 and a turning potentiometer 65. The first turning detection gear 33 passes through the second housing 12 into the housing 10 and engages with the second turning detection gear 64. The turning potentiometer 65 is mounted on the second turning detection gear 64 and is electrically connected to the circuit board (not shown) of the folding device 1, which is fixed in the housing 10. When the second actuator 61 drives the second process transmission gear 62 to rotate, the second process transmission gear 62 drives the second worm 63 to rotate, and the second worm 63 drives the turning transmission gear 32 to rotate around the second axis 321, so that the mounting plate 30 rotates synchronously, and the first turning detection gear 33 rotates synchronously, driving the second turning detection gear 64 to rotate, and the turning potentiometer 65 rotates synchronously with the second turning detection gear 64. The turning potentiometer 65 can record the rotation angle of the mounting plate 30 around the second axis 321 and transmit data to the circuit board, so as to record the commonly used position of the mounting plate 30, thereby intelligently controlling the light reflecting element to rotate to the habitual position of the user around the second axis 321.

[0075] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, it is to be understood that the application embraces all such possible combinations.

[0076] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A folding device capable of being attached to a vehicle body, characterized by comprising: The utility model relates to a folding device for vehicle, comprising: a housing; a folding column penetrating through the housing and connected to the vehicle body; a folding driving assembly arranged in the housing, the folding driving assembly being capable of driving the housing to rotate around a first axis between a folding position and an unfolding position relative to the vehicle body, in the folding position, the housing is close to the vehicle body, in the unfolding position, the housing is transverse to the vehicle body, the first axis being an axis of the folding column; a mounting plate located at one end of the housing, and an included angle being present between the first axis and the mounting plate; a turnover assembly connecting the mounting plate to the housing, the turnover assembly comprising a turnover column penetrating through the mounting plate and extending into the housing, the turnover column being spaced apart from the folding column, an included angle between the extension direction of the turnover column and the folding column being 0-30 degrees, the turnover assembly and the mounting plate being capable of relative rotation, the hole through which the turnover column penetrates through the mounting plate reserving space for the rotation of the mounting plate, wherein the mounting plate and the turnover assembly are provided with mutually matched turnover structures, one of the turnover structures being located at the mounting plate, the other being located at the end of the turnover column away from the housing, the turnover slot comprising an arc-shaped slot, the turnover platform comprising an arc-shaped platform matched with the arc-shaped slot; and a turnover driving assembly, at least part of the structure of which being located in the housing, the turnover driving assembly comprising a second actuator and a second worm and a turnover transmission gear intermeshing with each other, the second actuator and the second worm being located in the housing, the turnover transmission gear being fixed to the mounting plate and penetrating through the housing, the second actuator being capable of driving the second worm to rotate, thereby driving the turnover transmission gear to rotate, so that the mounting plate rotates around a second axis relative to the housing, an included angle being present between the second axis and the first axis, and the second axis being located on the axis of the arc-shaped slot.

2. The folding device of claim 1, wherein One of the turnover slot and the turnover platform is located at the side of the mounting plate away from the housing, the other being located at the end of the turnover column away from the housing; alternatively, one of the turnover slot and the turnover platform is located at the side of the mounting plate close to the housing, the other being located between the housing and the mounting plate and connected to the turnover column.

3. The folding device of claim 1, wherein The folding driving assembly comprises a first actuator and a first worm and a folding transmission gear intermeshing with each other, the folding transmission gear being fixed to the outer periphery of the folding column, the first actuator being capable of driving the first worm to rotate relative to the folding transmission gear.

4. The folding device of claim 3, wherein The folding driving assembly further comprises a first process transmission gear, the first process transmission gear being engaged with the output end of the first actuator and the first worm respectively.

5. The folding device of claim 4, wherein The first process transmission gear is a two-stage gear structure or a worm structure.

6. The folding device of claim 3, wherein The first folding detection gear coaxially arranged with the folding transmission gear, and the second folding detection gear fixed in the shell and engaged with the first folding detection gear, the second folding detection gear being provided with a folding potentiometer.

7. The folding device of claim 6, wherein The first protrusion and the first groove are provided between the first folding detection gear and the folding transmission gear, and the assembly surface between the first protrusion and the first groove comprises an inclined surface.

8. The folding apparatus of claim 6, wherein The assembly shaft fixed to the outer periphery of the folding column, the folding transmission gear being sleeved on the outer periphery of the assembly shaft, and at least part of the structure of the assembly shaft being located on the side of the folding transmission gear away from the first folding detection gear, the second protrusion and the second groove being provided between the assembly shaft and the first folding detection gear, and the assembly surface between the second protrusion and the second groove comprising a straight surface.

9. The folding apparatus of claim 1, wherein, The flip drive assembly further comprises a second process transmission gear engaged with the output end of the second actuator and the second worm.

10. The folding device of claim 9, wherein The second process transmission gear is a two-stage gear structure or a worm structure.

11. The folding apparatus of claim 9, wherein The first flip detection gear rotating synchronously with the flip transmission gear, and the second flip detection gear fixed in the shell and engaged with the first flip detection gear, the second flip detection gear being provided with a flip potentiometer.

12. A rearview device, characterized in that The folding device and the reflective element are provided, the reflective element being mounted on the mounting plate, in the folded position, the reflective element being at least partially shielded by the vehicle body, and in the unfolded position, the reflective element being exposed.

13. A vehicle characterized by comprising: The rearview device and the vehicle body are provided, the rearview device being mounted on the vehicle body. The rearview device and the vehicle body are provided, the rearview device being mounted on the vehicle body.

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