Integrated seat and rearview mirror actuator

Abstract

The invention discloses an integrated seat and a rearview mirror actuator, and belongs to the technical field of vehicle structures.The integrated seat comprises a first containing groove and a second containing groove which are horizontally formed in one side of the integrated seat, the first containing groove and the second containing groove are arranged in a reverse included angle mode, and a first driving groove is formed in one end of the first containing groove; a second driving groove is formed in one end of the second containing groove, and the first driving groove and the second driving groove are located on the opposite sides of the integrated base. The rearview mirror actuator comprises the integrated base, a first transmission assembly and an upper shell, the first transmission assembly comprises an output piece which is located on the first transmission groove and fixedly connected with the upper shell, a driving rack is arranged in the upper shell, and a first gear matched with the driving rack is arranged on the sinking face. According to the scheme, the problems that a rearview mirror actuator is large in size and complex in structure are solved.

Description

Technical Field

[0001] The invention relates to a rearview mirror structure, and more particularly to an integrated seat and a rearview mirror actuator. Background Art

[0002] As an important part of the automobile safety system, the technology development of rearview mirrors has gone through an evolution process from mechanical to electric to intelligent. As a driving element, the rearview mirror actuator can control the movement of the rearview mirror. However, most of the current rearview mirror actuators have complex structures and high design costs. In the process of adjusting and folding the mirror, two separate actuators are required for control, so the size is large, which leads to certain restrictions on assembly and installation.

[0003] For example: Chinese patent announcement number CN217347648U, announcement date September 2, 2022, the name of the utility model is compact rearview mirror folder, including a gearbox; a motor, located on the input side of the gearbox, the drive shaft of the motor is connected to a drive gear; an output member, fixedly provided with an output shaft, the output shaft is located on the output side of the gearbox, the center line of the drive gear, the center line of the drive shaft of the motor and the center line of the output shaft all coincide; a fixed pin and a rotating gear are installed on the side of the output member away from the output shaft, the fixed pin is inserted in the middle of the rotating gear, and the rotating gear is connected to the driving gear by transmission; a gear ring is fixedly installed on the inner side of the gearbox, and the inner side of the gear ring is meshed with the rotating gear. The folder uses gear transmission throughout, and the drive gear, motor and output shaft are all arranged upright, which simplifies the structure, is more compact as a whole, requires less installation space, and has higher transmission efficiency and stability compared with worm gear transmission. This solution has certain limitations in reducing the installation space by arranging various shaft parts vertically. The overall volume is still large, and it can only realize vertical rotation and folding. For the adjustment of the front and rear mirrors, additional actuators are still required, or manual adjustment is used, which is difficult to meet user needs. Summary of the invention

[0004] The present invention overcomes the problems of large size and single folding form of existing rearview mirror actuators, and provides an integrated seat and a rearview mirror actuator, wherein the rearview mirror actuator integrated seat can integrate most of the transmission structure together, greatly reducing the size of the rearview mirror actuator. The rearview mirror actuator designed by this integrated seat also has the effect of horizontal folding, which greatly improves the visual adjustment effect of the rearview mirror and facilitates adjustment of the optimal observation effect.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: An integrated base includes a horizontally arranged first receiving groove and a second receiving groove provided on one side of the integrated base. The first receiving groove and the second receiving groove are arranged at an inverse included angle. One end of the first receiving groove is provided with a first driving groove, and one end of the second receiving groove is provided with a second driving groove. The first driving groove and the second driving groove are located on opposite sides of the integrated base. The first receiving groove and the second receiving groove are arranged at the horizontal position at the bottom of the integrated base for installing the driving motor structure. The reverse arrangement of the first receiving groove and the second receiving groove enables the output ends of the two groups of motors to be located on two opposite surfaces of the integrated base, so that the rearview mirror actuator has two different folding methods, and the layout space on both sides of the integrated base is utilized, greatly reducing the overall volume of the actuator. The included angle between one group of receiving grooves and the other group of receiving grooves can effectively reduce the layout space and further reduce the volume of the integrated base. The first driving groove and the second driving groove are used for arranging the transmission structure. In this solution, the distribution of each structure on the integrated base is optimized, greatly reducing the volume of the integrated base and the actuator after assembly.

[0006] Preferably, the side of the integrated base away from the first receiving groove and the second receiving groove is a sunken surface. The sunken surface is provided with a first heat dissipation hole and a second heat dissipation hole. The first heat dissipation hole and the second heat dissipation hole respectively correspond to and communicate with the first receiving groove and the second receiving groove. The sunken surface is the flat surface at the top of the integrated base for installing the PCB board structure. The sunken design can reduce the height dimension of the integration degree. The first heat dissipation hole and the second heat dissipation hole are designed corresponding to the first receiving groove and the second receiving groove respectively, which can play a heat dissipation effect on the driving motor.

[0007] Preferably, the first driving groove communicates with a first transmission groove, and the first transmission groove is located on the sunken surface; the second driving groove communicates with a second transmission groove, and the second transmission groove and the first driving groove are located on opposite sides of the integrated base. The first transmission groove is arranged on the top of the integrated base, which can connect the transmission relationship to the top of the integrated base and increase the folding methods of the actuator.

[0008] A rearview mirror actuator includes the above-mentioned rearview mirror actuator integrated seat, and also includes a first transmission assembly and an upper shell, wherein the first transmission assembly includes an output member located on a first transmission groove and fixedly connected to the upper shell, a driving rack is provided in the upper shell, and a first feedback gear matched with the driving rack is provided on the sunken surface. The first transmission assembly is arranged in the first transmission groove and the first driving groove, wherein in the first transmission groove, the output member of the first transmission assembly is fixedly connected to the upper shell, so that the first transmission assembly can cause the upper shell of the rearview mirror actuator to move, so that the rearview mirror actuator can realize horizontal rotation, and at the same time, the driving rack on the upper shell can drive the first feedback gear to rotate, and the rotation angle of the upper shell is detected by the rotation angle of the first feedback gear to ensure that the rotation angle of the rearview mirror actuator is appropriate.

[0009] Preferably, the rearview mirror further comprises a second transmission assembly, the second transmission assembly is connected to the rotating mechanism, the second transmission assembly is arranged at the second driving slot and the second transmission slot, and the rotating mechanism is connected to the second transmission assembly at the second transmission slot. The second transmission assembly is used to drive the rotating mechanism to rotate, so that the rearview mirror actuator can achieve a folding effect in the vertical direction.

[0010] Preferably, the rotating mechanism includes a main shaft, a transmission wheel and a timing gear arranged on the main shaft, the timing gear is embedded in the transmission wheel, and the timing gear and the transmission wheel form a circumferential fit through a conical tooth groove. The transmission wheel and the timing gear can both rotate around the main shaft, and the timing gear and the transmission wheel are nested together and can rotate synchronously, thereby realizing the folding of the rearview mirror actuator. In addition, the timing gear and the transmission wheel are axially matched through the conical tooth groove. When a manual folding method is adopted, the timing gear can be raised alone to achieve a folding effect.

[0011] Preferably, it also includes an intermediate housing embedded in the upper housing, one side of the timing gear is connected to the second feedback gear, the other side of the timing gear is provided with a limit block, the second feedback gear is provided on the sunken surface, and the intermediate housing is provided with a limit groove adapted to the limit block. The rotation of the timing gear will drive the second feedback gear to rotate, and the rotation of the second feedback gear will output a signal to the control circuit to ensure that the folding angle of the rearview mirror actuator is appropriate. The limit block on the other side of the timing gear and the limit groove on the intermediate housing can limit the rotation range of the timing gear to prevent the folding angle of the rearview mirror actuator from being too large.

[0012] Preferably, a PCB board is provided on the sinking surface, and the first feedback gear and the second feedback gear are arranged on the PCB board. The integrated circuit on the PCB board is designed such that the rotation angles of the first feedback gear and the second feedback gear can be input into the integrated circuit on the PCB board, so that the action angles of two different folding methods can be detected, ensuring that the folding angles are all within a suitable range.

[0013] Preferably, an elastic member is provided between the rotating mechanism and the upper housing. The timing gear of the rotating mechanism can disengage from the transmission wheel, and the elastic member can reset the timing gear.

[0014] Preferably, it includes a driving assembly, and the driving assembly includes a first driving device and a second driving device. The first driving device is arranged in the first receiving groove, and the first driving device is connected to the first transmission assembly; the second driving device is arranged in the second receiving groove, and the second driving device is connected to the second transmission assembly. Both the first driving device and the second driving device adopt motors. The first driving device is used to drive the first transmission assembly to act, achieving the rotational effect of the actuator in the horizontal direction, and the second driving device is used to drive the second transmission assembly, achieving the rotational effect of the actuator in the vertical direction, thereby realizing folding effects in multiple different ways.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The integrated seat of the rearview mirror actuator can integrate most of the transmission structures together, greatly reducing the volume of the rearview mirror actuator; (2) The rearview mirror actuator also has the effect of folding in the horizontal direction, greatly improving the visual adjustment effect of the rearview mirror and facilitating the adjustment of the best viewing effect; (3) It has a heat dissipation effect, is driven by a motor, has a feedback adjustment design, and is intelligently folded, making the folding angle of the rearview mirror more appropriate; (4) Further reducing the appearance size of the external rearview mirror and increasing the visible field of the external rearview mirror glass (the field of view of the frameless external rearview mirror is increased by 15% compared with the traditional external rearview mirror), achieving improvements in terms of safety / energy conservation / aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an isometric view of the top view of the integrated seat of the present invention.

[0017] Figure 2 It is a top view of the integrated seat of the present invention.

[0018] Figure 3 It is an isometric view of the side view of the integrated seat of the present invention.

[0019] Figure 4 It is an isometric view of the bottom view of the integrated seat of the present invention.

[0020] Figure 5 It is an exploded view of the rearview mirror actuator of the present invention.

[0021] Figure 6 Explosion schematic diagram of part of the structure on the integrated seat of the rearview mirror actuator of the present invention.

[0022] Figure 7 Explosion schematic diagram of the rotating mechanism and the integrated seat of the present invention in part.

[0023] Figure 8 Cross-sectional view of the rotating mechanism of the present invention.

[0024] Figure 9 Schematic diagram of the internal mating connection between the timing gear and the transmission wheel of the present invention.

[0025] Figure 10 Assembly schematic diagram of the rotating mechanism, the integrated seat and the intermediate housing of the present invention.

[0026] Figure 11 Explosion schematic diagram of the upper housing and the intermediate housing of the present invention.

[0027] Figure 12 Bottom view of the upper housing of the present invention.

[0028] Figure 13 Bottom view after the upper housing and the intermediate housing of the present invention are mated.

[0029] Figure 14 Top view of the lower housing of the present invention.

[0030] Figure 15 Assembly schematic diagram of the overall assembly of the rearview mirror actuator of the present invention.

[0031] In the figure: 1. Integrated seat, 2. First receiving groove, 3. Second receiving groove, 4. First driving groove, 5. Second driving groove, 6. Sinking surface, 7. First heat dissipation hole, 8. Second heat dissipation hole, 9. First transmission groove, 10. Second transmission groove, 11. Connecting groove, 12. Hollowed-out groove; 13. Upper housing, 14. Output member, 15. Driving rack, 16. First feedback gear, 17. Second feedback gear, 18. Rotating mechanism, 19. Main shaft, 20. Transmission wheel, 21. Timing gear, 22. Intermediate housing, 23. Limiting block, 24. Limiting groove, 25. PCB board, 26. Elastic member, 27. First driving device, 28. Second driving device, 29. Lower housing, 30. First worm, 31. First gear, 32. Second gear, 33. Third gear, 34. Second worm, 35. Through hole, 36. Fixing part, 37. Fixing groove, 38. Third worm, 39. Fourth gear, 40. Fourth worm, 41. Positioning part, 42. Notch, 43. Positioning post, 44. Positioning hole, 45. Connecting hole, 46. Connecting member, 47. Driving device groove body, 48. Rotating mechanism groove body, 49. Spring pin, 50. Positioning protrusion, 51. Positioning groove. Detailed implementation manners

[0032] The technical solutions of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings.

[0033] Embodiment 1: As Figures 1 to 4 shown, an integrated base. The integrated base 1 is a cuboid structure as a whole. The integrated base 1 includes a first receiving groove 2 and a second receiving groove 3. The first receiving groove 2 and the second receiving groove 3 are located at the horizontal position of the bottom of the integrated base. The first receiving groove 2 and the second receiving groove 3 are arranged at a certain angle in the length direction. Among them, the length direction of the first receiving groove 2 is parallel to the side wall of the integrated base 1, and the length direction of the second receiving groove 3 forms a certain angle with the side wall of the integrated base 1, that is, the first receiving groove 2 and the second receiving groove 3 will form a certain angle.

[0034] Specifically, the first receiving groove 2 and the second receiving groove 3 are used to install the drive motor structure. A first drive groove 4 is provided at one end of the first receiving groove 2 in the length direction. The first drive groove 4 and the first receiving groove 2 are communicating grooves, and the output end of the drive motor located in the first receiving groove 2 faces the first drive groove 4. The first drive groove 4 is used to install the transmission component. That is to say, the output end of the drive motor installed in the first receiving groove 2 can be in transmission connection with the transmission component in the first drive groove 4. A second drive groove 5 is provided at one end of the second receiving groove 3 in the length direction. The second drive groove 5 and the second receiving groove 3 are communicating grooves, and the output end of the drive motor located in the second receiving groove 3 faces the second drive groove 5. The first drive groove 5 is used to install the transmission component. That is to say, the output end of the drive motor installed in the second receiving groove 3 can be in transmission connection with the transmission component in the second drive groove 5. Among them, the first drive groove 4 and the second drive groove 5 are respectively located on two opposite side surfaces of the integrated base 1. Therefore, it can be understood that the arrangement methods of the first receiving groove 2 and the second receiving groove 3 are opposite. Since the output end of the drive motor is a transmission shaft structure, that is to say, the space occupied by the output end of the drive motor will be smaller than the space occupied by the drive motor itself as a whole. That is, the width dimensions of the first drive groove 4 and the second drive groove 5 will be respectively smaller than the width dimensions of the first receiving groove 2 and the second receiving groove 3.

[0035] In the design of this solution, the length direction of the first receiving groove 2 is arranged parallel to the side wall of the integrated base 1, so that there is more space left on the integrated base 1 at the position where the first receiving groove 2 is close to the first driving groove 4, and less space is left on the integrated base 1 at the position where the first receiving groove 2 is far from the first driving groove 4; Therefore, when arranging the second receiving groove 3, the side of the second receiving groove 3 away from the second driving groove 5 can be arranged on the side of the integrated base 1 with a larger space position, that is, the side of the first receiving groove 2 close to the first driving groove 4, and the second driving groove 5 is made to approach the side where the first driving groove 4 is located, forming an angular arrangement; At this time, due to the angular arrangement, the second driving groove 5 will be closer to the side wall position of the integrated base 1. At this time, the side of the second receiving groove 3 away from the first receiving groove 2 in the width direction penetrates the side wall of the integrated base 1, but the driving motor can still be well assembled and positioned inside the second receiving groove 3. Therefore, the arrangement of the first receiving groove 2 and the second receiving groove 3 achieves the effect of minimizing the volume of the integrated base as much as possible.

[0036] A sunken surface 6 is provided at the top position of the integrated base 1. The sunken surface 6 and the planes where the first receiving groove 2 and the second receiving groove 3 are located are on both sides of the integrated base 1. The sunken surface 6 is a plane formed by the sunken design of the top of the integrated base 1. That is to say, the position of the sunken surface 6 is slightly lower than the position of the upper surface (the highest plane) of the integrated base 1. The first heat dissipation holes 7 and the second heat dissipation holes 8 are provided on the sunken surface 6. The positions of the first heat dissipation holes 7 and the second heat dissipation holes 8 correspond to the positions of the first receiving groove 2 and the second receiving groove 3 respectively. The first heat dissipation holes 7 and the second heat dissipation holes 8 are rectangular holes and are respectively communicated with the first receiving groove 2 and the second receiving groove 3. The first heat dissipation holes 7 and the second heat dissipation holes 8 can dissipate heat for the driving motors in the first receiving groove 2 and the second receiving groove 3, ensuring that the motors can operate stably.

[0037] The first driving groove 4 penetrates through one side surface of the integrated base 1. The first driving groove 4 communicates with the first receiving groove 2 at the bottom position. The top position of the first driving groove 4 penetrates through the sunken surface 6 at the top of the integrated base 1 and forms the first transmission groove 9. The length direction of the first driving groove 4 is along the height direction of the integrated base 1, and the length direction of the first transmission groove 9 is along the width direction of the integrated base 1 (that is, the length direction of the first transmission groove 9 is perpendicular to the length directions of the first receiving groove 2 and the first driving groove 4 at the same time); the second driving groove 5 penetrates through one side surface of the integrated base 1, and a second transmission groove 10 is further provided on this side surface. The second transmission groove 10 and the second driving groove 5 are located on the same side surface of the integrated base 1. The second driving groove 5 and the first driving groove 4 are arranged diagonally. The length direction of the second driving groove 5 is along the length direction of the integrated base 1, and the direction of the second transmission groove 10 is along the width direction of the integrated base (that is, the length direction of the second transmission groove 10 is perpendicular to the length directions of the second receiving groove 3 and the second driving groove 5 at the same time). A set of transmission components are arranged in the first transmission groove 9 and the first driving groove 4, and a set of transmission components are arranged in the second transmission groove 10 and the second driving groove 5.

[0038] Four groups of connecting grooves 11 are further provided on the integrated base 1. The connecting grooves 11 are used to connect the structures at the bottom and top of the integrated base 1. Specifically, two of the connecting grooves 11 are located at the corner positions of the first heat dissipation holes 7. One connecting groove 11 penetrates from the bottom to the top of the integrated base 1 through the edge of the first transmission groove 9. The last group of connecting grooves 11 can be reasonably designed according to the actual position. In this embodiment, the last group of connecting grooves 11 is arranged on the side away from the first receiving groove 2 in the width direction of the second receiving groove 3.

[0039] The sizes of the first heat dissipation holes 7 and the second heat dissipation holes 8 are respectively smaller than the sizes of the first receiving groove 2 and the second receiving groove 3. Therefore, on the sunken surface 6, a hollowed-out groove 12 is further provided between the first heat dissipation holes 7 and the second heat dissipation holes 8. The hollowed-out groove 12 can reduce the weight of the integrated base 1 to a certain extent, and according to needs, the bottom of the hollowed-out groove 12 can be respectively communicated with the first receiving groove 2 and the second receiving groove 3 to improve the heat dissipation effect on the driving motor.

[0040] Embodiment 2: As Figures 5 to 15 shown, a rearview mirror actuator includes a rearview mirror actuator integrated base in Embodiment 1, and further includes a rotating mechanism 18, a first driving device 27, a second driving device 28, a first transmission component, a second transmission component, an upper housing 13, an intermediate housing 22, a lower housing 29 and other structures. Among them, the first transmission component is arranged in the first driving groove 4 and the first transmission groove 9. The first driving device 27 is arranged in the first receiving groove 2, and the first driving device 27 drives the first transmission component to move; the second transmission component is arranged in the second driving groove 5 and the second transmission groove 10. The second driving device 28 is arranged in the second receiving groove 3, and the second driving device 28 drives the second transmission component to move.

[0041] The first driving device 27 is a motor that can rotate forward and backward. The first driving device 27 is arranged in the first receiving groove 2, and the output end of the first driving device 27 faces the first driving groove 4. A first worm 30 is provided at the output end of the first driving device 27. The first worm 30 is located in the first driving groove 4 and is in transmission connection with the first transmission assembly. Specifically, the first transmission assembly includes a horizontally arranged first gear shaft. The first gear shaft is located in the first driving groove 4. The first gear shaft includes a first gear 31 and a second gear 32. The first gear 31 and the second gear 32 are of an integral structure and can perform synchronous movement. The diameter of the first gear 31 is larger than that of the second gear 32. Among them, the first gear 31 is meshed and connected with the first worm 30. The first transmission assembly further includes a horizontally arranged second gear shaft. The second gear shaft is located in the first transmission groove 9. The second gear shaft includes a third gear 33 and a second worm 34. The third gear 33 and the second worm 34 are of an integral structure and can achieve synchronous movement. The diameter of the third gear 33 is larger than that of the second worm 34. Among them, the third gear 33 is meshed and connected with the second gear 32. When the first driving device 27 is started, it drives the first worm 30 to rotate. The first worm 30 drives the first gear 31 to rotate. The first gear 31 and the second gear 32 rotate synchronously. Further, the second gear 32 drives the third gear 33 to rotate. The third gear 33 and the second worm 34 move synchronously.

[0042] An intermediate housing 22 and an upper housing 13 are arranged on the integrated base 1. Among them, the outer shape of the intermediate housing 22 is adapted to the upper surface of the integrated base 1. The intermediate housing 22 and the integrated base 1 are fixedly connected by screws. A through hole 35 is provided on the intermediate housing 22 corresponding to the first transmission groove 9 on the integrated base 1. The second worm 34 is located directly below the through hole 35. The first transmission assembly further includes an output member 14. The output member 14 is of a gear structure. The lower part of the output member 14 is an arc-shaped gear, and the upper part of the output member 14 is a rectangular fixing part 36. As Figure 11 and Figure 12 shown, the upper housing 13 is buckled above the intermediate housing 22 and is fixedly connected together by screws. A fixing groove 37 is provided inside the upper housing 13 at a position corresponding to the through hole 35. The fixing groove 37 is a rectangular groove structure. The fixing groove 37 is adapted to the fixing part 36 of the output member 14. And the output member 14 is fixed in the fixing groove 37 through the fixing part 36. Thus, when the second worm 34 rotates, it will drive the arc-shaped gear at the bottom of the output member 14 to rotate, and further drive the upper housing 13 to swing to a certain extent. Specifically, the swing amplitude of the upper housing 13 in this form is ±7° to ±8°. The swing direction of the upper housing 13 is along the left-right horizontal axis. That is to say, the rearview mirror actuator can be folded along the up-down direction of the whole vehicle.

[0043] It should be noted that a self-locking structure can be formed between the first worm 30 and the first gear 31, and a self-locking structure can also be formed between the second worm 34 and the output member 14. A positioning protrusion 50 is provided on the intermediate housing 22, and a positioning groove 51 is provided on the upper housing 13. The intermediate housing 22 and the upper housing 13 are matched and connected by the positioning protrusion 50 and the positioning groove 51, which can prevent the intermediate housing 22 and the upper housing 13 from being misaligned.

[0044] The second drive device 28 is a forward and reverse rotating motor. The second drive device 28 is arranged in the second receiving groove 3. The output end of the second drive device 28 faces the second driving groove 3. The output end of the second drive device 28 is provided with a third worm 38. The third worm 38 is located in the second driving groove 3 and is connected to the second transmission assembly. Specifically, the second transmission assembly includes a third gear shaft, and the third gear shaft includes a fourth gear 39 and a fourth worm 40. The fourth gear 39 and the fourth worm 40 are an integral structure and can move synchronously. The diameter of the fourth gear 39 is greater than the diameter of the fourth worm 40, wherein the fourth gear 40 is meshed with the third worm 38. When the second drive device 28 is started, it drives the third worm 38 to rotate, and the third worm 38 drives the fourth gear 39 to rotate. The fourth gear 39 and the fourth worm 40 rotate synchronously, and then the fourth worm 40 drives the rotating mechanism 18 to rotate.

[0045] Furthermore, the rotating mechanism 18 includes a main shaft 19, a timing gear 21 and a transmission wheel 20. The interior of the main shaft 19 is a cylindrical hollow structure, and three positioning parts 41 are provided at the bottom of the main shaft 19, such as Figure 8 and Figure 9 As shown, the upper part of the main shaft 19 is a cylinder, and the timing gear 21 and the transmission wheel 20 are sleeved on the main shaft 19. Specifically, the bottom of the transmission wheel 20 is a hole structure whose inner diameter is matched with the outer size of the main shaft 19, and the transmission wheel 20 and the main shaft 19 can rotate relative to each other. The inner diameter of the upper part of the transmission wheel 20 is larger than the outer size of the main shaft 19, and the inner diameter of the upper part of the rotating wheel 20 is matched with the outer diameter of the timing gear 21, so that the rotating wheel 20 and the timing gear 21 are nested together, and the inner diameter of the bottom of the timing gear 21 is matched with the outer diameter of the main shaft 19. The timing gear 21 can also rotate relative to the main shaft 19, and the outer diameter of the timing gear 21 is smaller than the outer diameter of the transmission wheel 20.

[0046] The outer diameter of the transmission wheel 20 is provided with a gear structure in the circumferential direction. The gear teeth on the outer diameter of the transmission wheel 20 mesh with the fourth worm 40 on the second transmission assembly. When the second drive device 28 is started, the fourth worm 40 rotates, thereby driving the transmission wheel 20 to rotate. It should be noted that a self-locking structure is formed between the third worm 38 and the fourth gear 39, and a self-locking structure is also formed between the fourth worm 40 and the driving wheel 20, that is, the transmission wheel 20 on the rotating mechanism 18 can only be driven to rotate by the fourth worm 40.

[0047] Furthermore, a circumferential fit is formed between the drive wheel 20 and the timing gear 21 and relative rotation can occur. Specifically, as Figure 9 shown, a tapered tooth structure is provided inside the drive wheel 20. The tapered teeth are arranged along the inner circumference of the drive wheel 20. A tapered tooth is also provided inside the timing gear 21 and is arranged along the inner circumference of the timing gear 21. The timing gear 21 and the drive wheel 20 are connected by the tapered teeth inside to form a circumferential fit. When the fourth worm 40 rotates to drive the drive wheel 20 to rotate, the drive wheel 20 will drive the timing gear 21 to rotate together. It should be noted that this rotation mode of the timing gear 21 is powered by the second driving device 28; additionally, when the rearview mirror actuator is manually folded, only the timing gear 21 is subjected to the rotational force. Since a self-locking structure is formed between the drive wheel 20 and the fourth worm 40, when the timing gear 21 rotates, the drive wheel 20 is locked and cannot rotate; and a circumferential fit is formed between the timing gear 21 and the drive wheel 20 through the tapered teeth. Therefore, when only the timing gear 21 is subjected to the rotational force, the bottom of the timing gear 21 will slide along the tapered surface of the tapered teeth. That is to say, when manually folding, the timing gear 21 will separate from the drive wheel 20, so that the timing gear 21 is lifted. The overall structure of the rearview mirror actuator does not need to be lifted, only the internal parts are lifted. The advantage is that no vertical force on the vehicle body is applied to the external skeleton of the rearview mirror actuator during this process. It should be noted that an elastic member 26 is also provided between the upper housing 13 and the main shaft 19. The elastic member 26 is a spring structure. One end of the spring abuts against the timing gear 21, and the other end abuts against the intermediate housing 22. After manually folding the rearview mirror actuator, the timing gear 21 is lifted, and through the action of the elastic member 26, the timing gear 21 can be reset.

[0048] A sunken surface 6 is provided on the upper surface of the integrated seat 1. The sunken surface 6 is a horizontal plane formed by the top of the integrated seat 1 sinking. A PCB board 25 is provided on the sunken surface 6. A notch 42 is provided on the PCB board 25 corresponding to the position of the first transmission groove 9 on the integrated seat 1 for exposing the second worm 34 and passing through the output member 14. At least two groups of positioning posts 43 are provided on the integrated seat 1, and positioning holes 44 adapted to the positioning posts 43 are provided on the PCB board 25, so that the PCB board 25 can be fixed on the integrated seat 1.

[0049] It should also be noted that four sets of connection holes 45 are provided on the PCB board 25. The positions of the connection holes 45 correspond to the positions of the four sets of connection slots 11 on the integrated base 1. Connection holes are also provided on the housings of the first driving device 27 and the second driving device 28. A connecting member 46 is provided on the first driving device 27, the second driving device 28, and the PCB board 25. One end of the connecting member 46 is inserted into the slot hole on the housing of the first driving device 27, and the other end of the connecting member 46 is connected to the connection hole 45 on the PCB board 25 through the connection slot 11 on the integrated base 1. Similarly, the second driving device 28 and the PCB board 25 also have the same setting; thus, the first driving device 27, the second driving device 28, the integrated base 1, and the PCB board 25 are fixed into an integral structure. The first heat dissipation holes 7 and the second heat dissipation holes 8 on the integrated base 1 can play a role in dissipating heat for the first driving device 27, the second driving device 28, and the PCB board 25.

[0050] A first feedback gear 16 is also provided on the PCB board 25. Among them, the first feedback gear 16 is arranged at the notch 42 position of the PCB board 25, and a rotational connection is formed between the first feedback gear 16 and the PCB board 25. A driving rack 15 is also provided outside the fixed slot 37. When the intermediate housing 22 and the upper housing 13 are assembled with the integrated base 1, the through hole 35 on the intermediate housing 22 can expose the driving rack 15 outside the fixed slot 37 and a part of the outer diameter of the first feedback gear 16, so that the first feedback gear 16 and the driving rack 15 are meshed and connected together. When the first driving device 27 is driven, the output member 14 of the first transmission assembly acts, causing the upper housing 13 to fold in the up and down direction of the whole vehicle (adjustment of the pitch angle). After the upper housing 13 rotates, the driving rack 15 on the upper housing 13 can drive the first feedback gear 16 to rotate slightly. After the first feedback gear 16 rotates, it will feedback the rotation signal to the PCB board 25, so that the rotation angle of the upper housing 13 can be detected, and the up and down folding of the rearview mirror actuator is at an appropriate angle.

[0051] A second feedback gear 17 is also provided on the PCB board 25. The second feedback gear 17 is arranged close to the rotation mechanism 18. In the rotation mechanism 18, a tooth structure is provided on the outer diameter circumference of the timing gear 21, so that the official gear 21 and the second feedback gear 17 are meshed and connected. When the second driving device 28 is started, it drives the fourth worm 40 to rotate, and then drives the transmission wheel 20 to rotate. The transmission wheel 20 drives the timing gear 21 to rotate, and then drives the second feedback gear 17 to rotate, so as to realize the axial rotation of the rearview mirror actuator in the vertical direction, that is, to realize the front and rear rotation adjustment of the rearview mirror. After the second feedback gear 17 rotates, it can feedback the signal to the PCB board 25, so as to detect the rotation angle of the rearview mirror actuator and ensure that the rotation angle of the rearview mirror actuator is within an appropriate range.

[0052] It should be noted that a limit block 232 is provided on the side of the timing gear 21 away from the first feedback gear. The limit block 23 is an arc-shaped block structure, and a limit groove 24 is provided on the middle housing 22 corresponding to the position of the timing gear 21. The limit groove 24 can limit the rotation range of the limit block 23, so that the timing gear 21 can rotate within a certain angular range.

[0053] The rearview mirror actuator further includes a lower housing 29. The lower housing 29, the middle housing 22 and the upper housing 13 are connected together by screws. A driving device groove 47 for accommodating the first driving device 27 and the second driving device 28 is provided inside the lower housing 28, and a rotating mechanism groove 48 for accommodating the rotating mechanism 16 is also provided. The lower housing 29 and the upper housing 13 are fixed on both sides by spring pins 49. On the one hand, the spring pins 49 can be used for the installation between the upper and lower housings. On the other hand, when the upper housing 13 is folded up and down, it can rotate around the axis of the spring pin 49.

Claims

1. An integrated base, characterized in that It includes a first accommodating groove and a second accommodating groove arranged horizontally on one side of the integrated seat, the first accommodating groove and the second accommodating groove are arranged at an opposite angle, a first driving groove is provided at one end of the first accommodating groove, and a second driving groove is provided at one end of the second accommodating groove, and the first driving groove and the second driving groove are located on opposite sides of the integrated seat.

2. An integrated base according to claim 1, characterized in that, The side of the integrated seat away from the first accommodating groove and the second accommodating groove is a sunken surface, and the sunken surface is provided with a first heat dissipation hole and a second heat dissipation hole, and the first heat dissipation hole and the second heat dissipation hole respectively correspond to and connect the first accommodating groove and the second accommodating groove.

3. The integrated base according to claim 2, characterized in that, The first driving groove is connected to the first transmission groove, and the first transmission groove is located on the sunken surface; the second driving groove is connected to the second transmission groove, and the second transmission groove and the first driving groove are located on opposite sides of the integrated seat.

4. A rearview mirror actuator, characterized in that, It includes an integrated seat as described in claim 3, and also includes a first transmission assembly and an upper shell, the first transmission assembly includes an output member located on the first transmission groove and fixedly connected to the upper shell, a drive rack is provided in the upper shell, and a first feedback gear cooperating with the drive rack is provided on the sunken surface.

5. The rearview mirror actuator according to claim 4, characterized in that, It also includes a second transmission assembly, the second transmission assembly is connected to the rotating mechanism, the second transmission assembly is arranged in the second drive groove and the second transmission groove, and the rotating mechanism is connected to the second transmission assembly in the second transmission groove.

6. The rearview mirror actuator according to claim 5, characterized in that, The rotating mechanism comprises a main shaft, a transmission wheel sleeved on the main shaft, and a timing gear. The timing gear is embedded in the transmission wheel. The timing gear and the transmission wheel form a circumferential fit through a conical tooth groove.

7. The rearview mirror actuator according to claim 6, characterized in that, It also includes an intermediate shell embedded in the upper shell, one side of the timing gear is transmission-connected to the second feedback gear, the other side of the timing gear is provided with a limit block, the second feedback gear is arranged on the sunken surface, and the intermediate shell is provided with a limit groove adapted to the limit block.

8. An actuator for a rearview mirror according to claim 7, characterized in that, A PCB board is disposed on the sunken surface, and the first feedback gear and the second feedback gear are disposed on the PCB board.

9. An automotive rearview mirror actuator according to any one of claims 5 to 8, characterized in that, An elastic member is provided between the rotating mechanism and the upper shell.

10. A rearview mirror actuator according to any one of claims 5 to 8, characterized in that, It includes a driving assembly, which includes a first driving device and a second driving device. The first driving device is arranged in the first accommodating groove and connected to the first transmission assembly; the second driving device is arranged in the second accommodating groove and connected to the second transmission assembly.

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