Vehicle-mounted display overturning driving device and transmission device thereof

Abstract

The invention discloses a vehicle-mounted displayer overturning driving device and a transmission device thereof. The transmission device comprises an output shaft, a transmission shaft, a clutch mechanism and a holding mechanism. The axis of the transmission shaft is coaxial with that of the output shaft; the clutch mechanism comprises a clutch piece, the clutch piece is connected with the output shaft and the transmission shaft in a sleeved mode, power is transmitted through friction torque of the clutch piece, the output shaft and the transmission shaft, if the torque borne by the output shaft is larger than the friction torque, the clutch mechanism is in an off state, and if the torque borne by the output shaft is smaller than the friction torque, the clutch mechanism is in an on state. If the torque borne by the transmission shaft is smaller than the resistance of the enclasping mechanism, the enclasping mechanism enclasps the transmission shaft, and if the torque borne by the transmission shaft is larger than the resistance, the transmission shaft rotates. The clutch device has the advantages that the clutch function can be achieved, fixed-torque output of the output shaft is achieved, free shaking of the transmission shaft is avoided, free shaking of the output shaft is avoided, and shaking of a displayer is avoided.

Description

Technical Field

[0001] The invention relates to components of a vehicle-mounted display, in particular to a vehicle-mounted display flip driving device and a transmission device thereof. Background Art

[0002] The driving device of the flip car display (such as LCD screen) is equipped with a gear reduction mechanism. Since there is a gap in the gear transmission of the gear reduction mechanism, the display may shake during the driving of the car. In this case: 1. The shaking will affect the user's viewing; 2. Since the reduction gear is small in size, the reduction gear is easily damaged when the display is subjected to external force.

[0003] In view of this deficiency, some people have designed a dual-motor deceleration solution, such as CN 220910287 U, in which a flipping reduction motor drives the display to flip, and after the display is flipped into place, the clamping reduction motor drives the mechanism to clamp the output shaft, providing a small clamping force to avoid shaking. It has the following deficiencies: 1. It is large in size and high in cost; 2. The output shaft needs to be equipped with a clutch to protect the flipping reduction motor. After the flipping is in place, the clamping reduction motor is started to work to generate a clamping force. To push the display, the output torque and the clamping torque must be overcome at the same time. However, overcoming these two torques at the same time cannot meet the standard requirements of China's 5KG and Europe's 3.5KG torques acting on the tail end of the display that the display must rotate in the direction of the force; 3. The clamping force generated by the clamping reduction motor is small, which can only solve the requirement that the LCD screen does not shake when watching, but the display will still shake due to insufficient clamping force in poor road conditions. Summary of the invention

[0004] The present invention provides a vehicle-mounted display flip driving device and a transmission device thereof, which overcome the shortcomings of the vehicle-mounted display flip driving device in the background art.

[0005] One of the technical solutions adopted by the present invention to solve the technical problem is: a transmission device of a vehicle-mounted display flip driving device comprises:

[0006] Output shaft (2);

[0007] A transmission shaft (3), the axis of which is coaxial with the axis of the output shaft (2);

[0008] A clutch mechanism (4) comprising a clutch member, the clutch member and the output shaft (2) and the transmission shaft (3) are all sleeve-connected, and power is transmitted through the friction torque between the clutch member and the output shaft (2) and the transmission shaft (3); if the torque on the output shaft (2) is greater than the friction torque, the clutch mechanism (4) is in a clutch state, and if it is less than the friction torque, it is in a clutch state; and

[0009] The clamping mechanism (5) is connected to the transmission shaft (3) and when the torque applied to the transmission shaft (3) is less than the resistance of the clamping mechanism (5), the clamping mechanism (5) clamps the transmission shaft (3); when the torque applied to the transmission shaft (3) is greater than the resistance of the clamping mechanism (5), the transmission shaft (3) rotates.

[0010] In one embodiment, the transmission shaft (3) and the output shaft (2) are sleeve-connected, and the clutch member comprises a first C-shaped member (41) capable of elastic deformation, and the first C-shaped member (41) is arranged between the sleeves of the transmission shaft (3) and the output shaft (2).

[0011] In one embodiment, the inner end of the output shaft (2) is provided with a supply slot (21), the inner end of the transmission shaft (3) is inserted into the supply slot (21) to form a sleeve connection, the clutch member is sleeved in the supply slot (21) and sleeved outside the inner end of the transmission shaft (3); the central angle of the first C-shaped member (41) is greater than 270 degrees and less than 360 degrees.

[0012] In one embodiment, the first end of the first C-shaped member (41) abuts against the bottom of the slot (21); the transmission shaft (3) is provided with a first boss (31); a first gear (61) is fixedly provided outside the transmission shaft (3); and the axial ends of the first gear (61) are respectively positioned by the end surface of the output shaft (2) and the first boss (31).

[0013] In one embodiment: the first C-shaped member (41) has a wavy structural area, and the wavy structural area is a wavy structure with concave and convex spaced arrangements in the thickness direction, and the spacing arrangement direction is parallel to the sleeve axis.

[0014] In one embodiment: the first C-shaped member (41) has a C-shaped outer wall and a C-shaped inner wall, and both the C-shaped outer wall and the C-shaped inner wall are provided with convex strips arranged at intervals, and the spacing arrangement direction is parallel to the sleeve axis.

[0015] In one embodiment: further comprising:

[0016] The mounting component (1) is provided, the output shaft (2) and the transmission shaft (3) are both rotatably connected to the mounting component (1), the outer ends of the output shaft (2) and the transmission shaft (3) are both extended outside the mounting component (1), and the clamping mechanism (5) is installed on the mounting component (1) and connected to the outer end of the transmission shaft (3).

[0017] In one embodiment, the clamping mechanism (5) comprises a clamping seat, the clamping seat is provided with a clamping groove (51) extending therethrough, the clamping groove (51) is provided with an opening extending therethrough inside and outside, and both sides of the opening are provided with convex portions (511) protruding into the clamping groove (51), the outer end of the transmission shaft (3) extends into the clamping groove (51) and the clamping seat clamps the outer end of the transmission shaft (3), and resistance is generated by the clamping seat and the outer end of the transmission shaft (3).

[0018] In one embodiment, the wall of the clamping groove (51) includes an arcuate surface with a central angle greater than 180, and the convex portions (511) on both sides of the opening are respectively connected to the two ends of the arcuate surface.

[0019] In one embodiment: a positioning groove (52) is recessed on the outer wall of the clamping seat, the positioning groove (52) and the opening are arranged back to back, the mounting component (1) is fixed with a positioning column (11), and the positioning column (11) is adapted to connect with the positioning groove (52); the clamping seat is convexly provided with two lugs (53), the clamping mechanism (5) is arranged on the outer wall of the mounting component (1), and a fixing piece is also provided which passes through the lugs (53) and is locked to the mounting component (1).

[0020] In one embodiment, the clamping mechanism (5) comprises a second C-shaped member (54) that can be elastically deformed, the mounting component (1) has a connecting hole (12) for the transmission shaft (3) to pass through, the second C-shaped member (54) is arranged between the transmission shaft (3) and the connecting hole (12), and the friction torque between the second C-shaped member (54) and the transmission shaft (3) and the connecting hole (12) constitutes resistance.

[0021] In one embodiment: further comprising:

[0022] The transmission mechanism (6) is installed in the mounting component (1) and is transmission-connected to the transmission shaft (3).

[0023] In one embodiment, the transmission shaft (3) and the output shaft (2) are sleeve-connected, and the clutch member comprises an elastically deformable circular ring member, which is arranged between the sleeves of the transmission shaft (3) and the output shaft (2).

[0024] The second technical solution adopted by the present invention to solve the technical problem is: the transmission device of the vehicle-mounted display flip driving device includes:

[0025] Output shaft (2);

[0026] A gear, which is sleeved on the outside of the output shaft (2);

[0027] A clutch mechanism (4) comprising a clutch member, the clutch member being sleeved between the gear and the output shaft (2), and transmitting power through the friction torque between the clutch member, the output shaft (2) and the gear, and the clutch mechanism (4) being in a disengaged state when the torque applied to the output shaft (2) is greater than the friction torque, and in a engaged state when the torque applied to the output shaft (2) is less than the friction torque; and

[0028] The clamping mechanism (5) is connected to the output shaft (2) and when the torque applied to the output shaft (2) is less than the resistance of the clamping mechanism (5), the clamping mechanism (5) clamps the output shaft (2); when the torque applied to the output shaft (2) is greater than the resistance of the clamping mechanism (5), the output shaft (2) rotates.

[0029] The third technical solution adopted by the present invention to solve its technical problem is: a vehicle-mounted display flipping driving device, which includes the transmission device of the vehicle-mounted display flipping driving device and a motor (7), the motor (7) is installed on the mounting component (1) and the transmission mechanism (6) connects the motor (7) and the transmission shaft (3).

[0030] The fourth technical solution adopted by the present invention to solve its technical problem is: a vehicle-mounted display flipping driving device, which includes the transmission device of the vehicle-mounted display flipping driving device and a reduction motor (7'), the reduction motor (7') is installed on the installation component (1), and the reduction motor (7') is transmission-connected to a first gear (61) fixedly arranged on the transmission shaft (3).

[0031] Compared with the background technology, this technical solution has the following advantages:

[0032] The transmission shaft axis and the output shaft axis are coaxial, and the clutch member of the clutch mechanism and the output shaft and the transmission shaft are all sleeve-connected. The clutch is controlled by comparing the friction torque between the clutch member and the output shaft and the transmission shaft and the torque applied to the output shaft, so that the clutch function can be realized, and the output shaft can output a fixed torque. The clutch is mechanically realized with high reliability, small size and low cost. The transmission shaft axis and the output shaft axis are coaxial, and the clamping mechanism is used to prevent the transmission shaft from shaking freely, thereby preventing the output shaft from shaking freely and the display from shaking. The clutch is mechanically realized with high reliability, small size and low cost. The clutch mechanism and the clamping mechanism are separately arranged, and the torques of the two are separately adjustable to meet the standard requirements of China's 5KG and Europe's 3.5KG torques acting on the tail end of the display that the display needs to rotate in the direction of the force, and can be applied under special conditions.

[0033] The gear sleeve is connected to the outside of the output shaft, and the clutch sleeve is arranged between the gear and the output shaft. The power is transmitted through the friction torque of the clutch, the output shaft and the gear. The clutch is controlled by comparing the torque on the output shaft is greater than the friction torque, so that the clutch function can be realized, and the output shaft can output a fixed torque. The clutch is realized mechanically with high reliability, small size and low cost. The clamping mechanism is used to prevent the output shaft from shaking freely and the display from shaking. The clutch is realized mechanically with high reliability, small size and low cost. The clutch mechanism and the clamping mechanism are separately arranged, and the torques of the two are separately adjustable to meet the standard requirements that the display must rotate in the direction of force when the torque of China 5KG and Europe 3.5KG acts on the tail end of the display, and can be used under special conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Figure 1 It is a three-dimensional schematic diagram of a driving device according to a first embodiment of a specific implementation method.

[0036] Figure 2 It is a three-dimensional partial exploded schematic diagram of a driving device according to a first embodiment of a specific implementation method.

[0037] Figure 3 It is a three-dimensional exploded schematic diagram of a driving device according to a first embodiment of a specific implementation method.

[0038] Figure 4It is a side view schematic diagram of a driving device according to a first embodiment of a specific implementation method.

[0039] Figure 5 yes Figure 4 AA cross-section diagram of .

[0040] Figure 6 It is a three-dimensional schematic diagram of the first C-shaped member of the first specific implementation example.

[0041] Figure 7 It is a three-dimensional schematic diagram of a holding seat according to a first embodiment of a specific implementation method.

[0042] Figure 8 It is a three-dimensional schematic diagram of a driving device according to a second specific implementation example.

[0043] Fig. 9 It is a three-dimensional partial exploded schematic diagram of a driving device according to a second specific implementation example.

[0044] Fig.10 It is one of the three-dimensional exploded schematic diagrams of the driving device of the second specific implementation example.

[0045] Fig.11 This is the second 3D exploded schematic diagram of the driving device of the second specific implementation example.

[0046] Fig.12 It is a side view schematic diagram of a driving device of a second specific implementation example.

[0047] Fig.13 yes Fig.12 Schematic diagram of the BB cross section.

[0048] Fig.14 It is a three-dimensional schematic diagram of a driving device according to a third specific implementation example.

[0049] Fig.15 It is a three-dimensional partial exploded schematic diagram of a driving device according to a third specific implementation example.

[0050] Fig.16 It is a three-dimensional schematic diagram of a driving device according to a fourth embodiment of a specific implementation method.

[0051] Fig.17 It is a three-dimensional partial exploded schematic diagram of a driving device according to a fourth embodiment of the specific implementation method.

[0052] Fig.18 It is a three-dimensional partial exploded schematic diagram of a driving device according to a fifth specific implementation example. DETAILED DESCRIPTION

[0053] Embodiment 1

[0054] Please refer to Figures 1 to 7The vehicle display flipping driving device is connected to the vehicle display flipping mechanism to drive the vehicle display to flip, and includes a transmission device and a motor 7.

[0055] The transmission device comprises a mounting component 1, an output shaft 2, a transmission shaft 3, a clutch mechanism 4, a clamping mechanism 5 and a transmission mechanism 6. The output shaft 2 and the transmission shaft 3 are both rotatably connected to the mounting component 1, the axis of the transmission shaft 3 is coaxial with the axis of the output shaft 2, and the outer ends of the output shaft 2 and the transmission shaft 3 extend out of the mounting component 1. The clutch mechanism 4 comprises a clutch member, the clutch member and the output shaft 2 and the transmission shaft 3 are all sleeve-connected, and the clutch mechanism 4 is in a disengaged state when the friction torque generated by the sleeve connection between the clutch member and the output shaft 2 and the transmission shaft 3 is greater than the friction torque, and the C-shaped member and the transmission shaft can rotate relative to each other in the disengaged state, and the C-shaped member and the transmission shaft can rotate relative to each other in the disengaged state when the C-shaped member and the output shaft can rotate relative to each other, and the C-shaped member and the transmission ... The clamping mechanism 5 is installed in the mounting component 1 and connected to the outer end of the transmission shaft 3. If the torque on the transmission shaft 3 is less than the resistance of the clamping mechanism 5, the clamping mechanism 5 clamps the transmission shaft 3. If it is greater than the resistance, the transmission shaft 3 rotates. The clamping mechanism 5 prevents the transmission shaft 3 from shaking freely, thereby preventing the output shaft 2 from shaking freely. The transmission mechanism 6 is installed in the mounting component 1 and is connected to the transmission shaft 3. The motor 7 is installed in the mounting component 1 and the transmission mechanism 6 connects the motor 7 and the transmission shaft 3, so that the motor 7 drives the transmission shaft 3 to rotate through the transmission mechanism 6, and the transmission shaft 3 drives the output shaft 2 to rotate through the clutch mechanism 4, and the output shaft 2 drives the flip mechanism.

[0056] The mounting component 1 is a shell structure, which includes a bottom shell 14 and a cover plate 15. The rear side wall of the bottom shell 14 is concave to form a notch, and a sealing plate 151 is fixed to the rear side of the cover plate 15. The cover plate 15 is fixedly connected to the bottom shell 14 and the sealing plate 151 seals the notch. The cover plate 15 and the bottom wall of the bottom shell 14 are both provided with mounting holes, and the axes of the mounting holes of the cover plate 15 and the bottom shell 14 are coaxially arranged.

[0057] The outer end of the output shaft 2 is connected to a flipping mechanism to drive the vehicle-mounted display to flip. Its specific structure is set to a rectangular structure or a circular structure with a key, etc. The output shaft 2 is mounted in the mounting hole of the cover plate 15 through the first bearing 22. The transmission shaft 3 is mounted in the mounting hole of the bottom shell 14 through the second bearing 33. The first gear 61 is fixed to the outside of the transmission shaft 3.

[0058] The transmission shaft 3 and the output shaft 2 are sleeved and connected, and the specific structure is as follows: the inner end of the output shaft 2 is provided with a supply slot 21, and the inner end of the transmission shaft 3 is inserted into the supply slot 21 to form a sleeve connection. The clutch member includes a first C-shaped member 41 that can be elastically deformed, and the first C-shaped member 41 is provided between the sleeve connection of the transmission shaft 3 and the output shaft 2. In the specific structure: the first C-shaped member 41 is sleeved in the supply slot 21, and the C-shaped outer wall and the inner wall of the supply slot 21 are frictionally matched, and the first C-shaped member 41 is sleeved on the outside of the inner end of the transmission shaft 3, and the C-shaped inner wall and the outer wall of the transmission shaft 3 are frictionally matched; the central angle of the first C-shaped member 41 is greater than 270 degrees and less than 360 degrees, such as 350-360 degrees, so that the C-shaped member has elasticity, can be tightly sleeved on the outside of the transmission shaft 3, and can be tightly installed in the supply slot 21. The first C-shaped member 41 has a wavy structure area, which is a wavy structure with concave and convex arranged at intervals in the thickness direction, so that the inner and outer walls of the C-shaped member both form a wavy structure 42 with concave and convex arranged at intervals, and the spacing arrangement direction is parallel to the sleeve axis. The wavy structure 42 includes inner wall protrusions, inner wall recesses, outer wall protrusions, and outer wall recesses. The inner wall protrusions and the outer wall recesses correspond to each other inside and outside, and the inner wall recesses and the outer wall protrusions correspond to each other inside and outside. The inner wall protrusions (outer wall recesses) and the outer wall protrusions (inner wall recesses) are arranged into a strip structure along the vertical sleeve axis. The inner wall protrusions and the outer wall of the transmission shaft 3 are in close contact to generate a friction torque, and the outer wall protrusions and the inner wall of the slot 21 of the output shaft 2 are in close contact to generate a friction torque. If a C-shaped member is provided, elastic deformation can be achieved by changing the size of the C-shaped member opening. If a wavy structure is provided, elastic deformation can be achieved by radial size deformation of the concave and convex. Double elastic deformation can improve the elastic deformation capacity and improve the accuracy of friction torque control.

[0059] In a specific implementation, the wavy structure can cover the entire first C-shaped member, or the first C-shaped member 41 shown in the figure is provided with a plurality of wavy structure areas arranged circumferentially at intervals, such as 3-5, and the wavy structure area is provided with three recesses, and the recess is such as a groove with a smooth transition, specifically such as an arc-shaped structure.

[0060] The clamping mechanism 5 includes a clamping seat, which is provided with a clamping groove 51 extending therethrough, and the clamping groove 51 is provided with an opening 512 extending therethrough inside and outside so that the clamping seat can be elastically deformed, and convex portions 511 are provided on both sides of the opening 512 toward the clamping groove 51, and the outer end of the transmission shaft 3 extends into the clamping groove 51 and the clamping groove 51 tightly clamps the outer end of the transmission shaft 3, and resistance is generated by the friction torque between the clamping seat and the outer end of the transmission shaft 3, such as the friction torque between the convex portion and the transmission shaft, and the friction torque between at least part of the wall of the clamping groove and the transmission shaft. When the clamping is large, the LCD screen will not shake and no abnormal noise will be generated even in poor road conditions. The wall of the clamping groove 51 includes an arcuate surface with a central angle greater than 180, such as 270 degrees to 350 degrees, specifically 300-350 degrees. The convex parts 511 on both sides of the opening are respectively connected to the two ends of the arcuate surface. The inner wall of the convex part is a smooth curved surface and smoothly transitions to connect the arcuate surface. Specifically, the two side surfaces of the convex part 511 are arcuate surfaces, and the top surface of the convex part is similar to a plane. The outer peripheral wall of the clamping seat is concavely set with a positioning groove 52. The positioning groove 52 and the opening are arranged back to back. The back of the bottom wall of the bottom shell 14 of the mounting component 1 is fixed with a positioning column 11, and the positioning column 11 is adapted to connect the positioning groove 52; the clamping seat is convexly provided with two lugs 53, and the two lugs 53 are respectively arranged on both sides of the positioning groove 52. The clamping seat is arranged on the back of the bottom wall of the bottom shell 14, and a fixing part is also provided to pass through the lug 53 and be locked to the mounting component 1, such as a screw; the clamping seat is fixed with double lugs and positioning grooves to improve the fixing and rotation limiting effects.

[0061] The output shaft 2 is in a stepped structure with a small outside and a large inside. The supply slot 21 is recessed in the large diameter section, and the small diameter section is provided with the above-mentioned rectangular structure or circular structure with a key, etc.; the mounting hole of the cover plate 15 is in a stepped hole with a small outside and a large inside. The small diameter section passes through the small diameter hole, and the first bearing 22 is connected between the large diameter section and the large diameter hole. A positioning groove is recessed on the outer periphery of the large diameter section, and a clamp is provided to be clamped in the positioning groove. The first bearing 22 is axially positioned by the stepped surface formed by the stepped hole and the clamp, thereby improving assembly convenience and assembly accuracy.

[0062] The transmission shaft 3 is also provided with a first boss 31 and a second boss 32; the first end of the first C-shaped member 41 is against the bottom of the slot 21, and the axial ends of the first gear 61 are respectively positioned by the end surface of the output shaft 2 and the first boss 31, thereby improving the convenience and accuracy of assembly. The mounting hole of the bottom shell 14 is a stepped hole, and the second bearing 33 is connected between the large diameter hole and the transmission shaft 3, and the second bearing 33 is axially positioned by the second boss 32 and the stepped surface formed by the stepped hole, thereby improving the convenience and accuracy of assembly.

[0063] The motor 7 is installed outside the sealing plate 151 of the cover plate 15 and the power shaft passes through the sealing plate 151 and extends into the housing. The transmission mechanism 6 is arranged in the housing and connects the power shaft of the motor 7 and the transmission shaft 3. The transmission mechanism 6 includes a primary transmission mechanism and a multi-stage speed change mechanism. The primary transmission mechanism adopts a worm gear mechanism and includes a worm 68 arranged on the power shaft of the motor 7 and a turbine 67 engaged with the worm 68. Through the above layout, the driving device has a compact structure and is easy to install and connect the flip mechanism. If the multi-stage speed change mechanism is used for deceleration, the multi-stage deceleration mechanism includes six gears 61-66 (including the above-mentioned first gear 61), the second gear 62 and the third gear 63 are coaxially fixed and connected to the bottom wall of the bottom shell 14 and the cover plate 15 through the first rotating shaft, the first gear 61 and the second gear 62 of the transmission shaft 3 are meshed, the fourth gear 64 and the fifth gear 65 are coaxially fixed and connected to the bottom wall of the bottom shell 14 and the cover plate 15 through the second rotating shaft, the third gear 63 and the fourth gear 64 are meshed, the sixth gear 66 and the turbine 67 are coaxially fixed and connected to the bottom wall of the bottom shell 14 and the cover plate 15 through the third rotating shaft, the fifth gear 65 and the sixth gear 66 are meshed, the transmission shaft, the first rotating shaft, the second rotating shaft and the third rotating shaft are arranged in sequence (such as from front to back), so that the drive device has a compact structure.

[0064] Embodiment 2

[0065] Please refer to Figure 8-Figure 13 The motor is a reduction motor 7', and the power output shaft of the reduction motor 7' is provided with a seventh gear 69, and the seventh gear 69 is meshedly connected to the first gear 61, thereby saving the transmission mechanism of the first embodiment.

[0066] Embodiment 3

[0067] Please refer to Figure 14-15 , it is different from the first embodiment in that: the clamping mechanism 5 includes a second C-shaped member 54 that can be elastically deformed, the mounting component 1 has a connecting hole 12 for the transmission shaft 3 to pass through, the second C-shaped member 54 is arranged between the transmission shaft 3 and the connecting hole 12, the second C-shaped member 54 is tightly sleeved on the outer end of the transmission shaft 3 to generate a friction torque, the connecting hole 12 is tightly sleeved outside the second C-shaped member 54 to generate a friction torque, and the friction torque constitutes a resistance, the connecting hole 12 and the mounting hole of the bottom shell 14 are coaxially arranged, and the structure of the second C-shaped member 54 is the same as the structure of the first C-shaped member. In the specific structure, a fixing sleeve 13 is fixed on the back of the bottom shell 14 of the mounting component 1, and the connecting hole 12 is formed inside the fixing sleeve 13. The bottom periphery of the fixing sleeve 13 extends outward to form a mounting plate, the mounting plate is provided with the above-mentioned positioning groove and lug, the bottom shell is also provided with the above-mentioned positioning column, and the fixing structure of the mounting plate and the bottom shell is the same as the fixing structure of the above-mentioned clamping seat and the bottom shell.

[0068] Embodiment 4

[0069] Please refer to Figure 16-Figure 17, it is different from the second embodiment in that: the clamping mechanism 5 includes a second C-shaped member 54 that can be elastically deformed, the mounting component 1 has a connecting hole 12 for the transmission shaft 3 to pass through, the second C-shaped member 54 is arranged between the transmission shaft 3 and the connecting hole 12, the second C-shaped member 54 is tightly sleeved on the outer end of the transmission shaft 3 to generate a friction torque, the connecting hole 12 is tightly sleeved outside the second C-shaped member 54 to generate a friction torque, and the friction torque constitutes a resistance, the connecting hole 12 and the mounting hole of the bottom shell 14 are coaxially arranged, and the structure of the second C-shaped member 54 is the same as that of the first C-shaped member. In the specific structure, a fixed sleeve 13 is fixedly provided on the back of the bottom shell 14 of the mounting component 1, and the connecting hole 12 is formed inside the fixed sleeve 13.

[0070] Embodiment 5

[0071] Please refer to Fig.18 , it is different from the second embodiment in that: the output shaft 2 is connected with a first gear 61, the clutch mechanism 4 is arranged between the output shaft 2 and the first gear 61, the clutch structure is the same as the clutch structure of the first embodiment, the difference is that the first C-shaped member of the clutch mechanism 4 in this embodiment is tightly sleeved outside the output shaft 2, the first C-shaped member 41 is tightly sleeved in the inner hole of the first gear 61, and the inner hole peripheral wall of the first gear 61 extends to form an elongated sleeve to extend the axial length of the inner hole and increase the matching axial distance of the first C-shaped member; the structure of the first C-shaped member 41 is as described in the first embodiment, and the first C-shaped member 41 in the figure covers the entire C-shaped member. The clamping mechanism 5 is connected to the output shaft 2 and the output shaft 2 is subjected to a torque less than the clamping mechanism 5 resistance, then the clamping mechanism 5 clamps the output shaft 2, and if it is greater than the output shaft 2, the output shaft 2 rotates. The clamping mechanism 5 is the same as the clamping mechanism of the first embodiment, the only difference is that the clamping mechanism is connected to the output shaft, and the first embodiment is connected to the transmission shaft.

[0072] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. The transmission device of the vehicle-mounted display flip driving device is characterized by: include: Output shaft (2); A transmission shaft (3), the axis of which is coaxial with the axis of the output shaft (2); A clutch mechanism (4) comprising a clutch member, the clutch member and the output shaft (2) and the transmission shaft (3) are all sleeve-connected, and power is transmitted through the friction torque between the clutch member and the output shaft (2) and the transmission shaft (3); if the torque on the output shaft (2) is greater than the friction torque, the clutch mechanism (4) is in a clutch state, and if it is less than the friction torque, it is in a clutch state; and The clamping mechanism (5) is connected to the transmission shaft (3) and when the torque applied to the transmission shaft (3) is less than the resistance of the clamping mechanism (5), the clamping mechanism (5) clamps the transmission shaft (3); when the torque applied to the transmission shaft (3) is greater than the resistance of the clamping mechanism (5), the transmission shaft (3) rotates.

2. The transmission device of the vehicle-mounted display flip driving device according to claim 1, characterized in that: The transmission shaft (3) and the output shaft (2) are sleeve-connected, and the clutch component comprises a first C-shaped component (41) capable of elastic deformation. The first C-shaped component (41) is arranged between the sleeves of the transmission shaft (3) and the output shaft (2).

3. The transmission device of the vehicle-mounted display flip driving device according to claim 2, characterized in that: The inner end of the output shaft (2) is provided with a supply slot (21), the inner end of the transmission shaft (3) is inserted into the supply slot (21) to form a sleeve connection, and the clutch is sleeved in the supply slot (21) and sleeved outside the inner end of the transmission shaft (3); the central angle of the first C-shaped member (41) is greater than 270 degrees and less than 360 degrees.

4. The transmission device of the vehicle-mounted display flip driving device according to claim 3 is characterized in that: The first end of the first C-shaped member (41) abuts against the bottom of the slot supplying slot (21); the transmission shaft (3) is provided with a first boss (31); a first gear (61) is fixedly provided outside the transmission shaft (3); and the axial ends of the first gear (61) are respectively positioned by the end surface of the output shaft (2) and the first boss (31).

5. The transmission device of the vehicle-mounted display flipping driving device according to claim 2, characterized in that: The first C-shaped member (41) has a wavy structural area, and the wavy structural area is a wavy structure with concave and convex spaced apart arrangements in the thickness direction, and the spaced arrangement direction is parallel to the sleeve axis.

6. The transmission device of the vehicle-mounted display flipping driving device according to claim 2, characterized in that: The first C-shaped member (41) has a C-shaped outer wall and a C-shaped inner wall. Both the C-shaped outer wall and the C-shaped inner wall are provided with convex strips arranged at intervals, and the direction of the intervals is parallel to the sleeve axis.

7. The transmission device of the vehicle-mounted display flip driving device according to claim 1, characterized in that: Also includes: The mounting component (1) is provided, the output shaft (2) and the transmission shaft (3) are both rotatably connected to the mounting component (1), the outer ends of the output shaft (2) and the transmission shaft (3) are both extended outside the mounting component (1), and the clamping mechanism (5) is installed on the mounting component (1) and connected to the outer end of the transmission shaft (3).

8. The transmission device of the vehicle-mounted display flipping driving device according to claim 7, characterized in that: The clamping mechanism (5) comprises a clamping seat, the clamping seat is provided with a clamping groove (51) extending therethrough, the clamping groove (51) is provided with an opening extending therethrough inside and outside, and convex portions (511) are provided on both sides of the opening toward the inside of the clamping groove (51), the outer end of the transmission shaft (3) extends into the clamping groove (51) and the clamping seat clamps the outer end of the transmission shaft (3), and resistance is generated by the clamping seat and the outer end of the transmission shaft (3).

9. The transmission device of the vehicle-mounted display flipping driving device according to claim 8, characterized in that: The groove wall of the clamping groove (51) comprises an arcuate surface with a central angle greater than 180, and the convex portions (511) on both sides of the opening are respectively connected to the two ends of the arcuate surface.

10. The transmission device of the vehicle-mounted display flipping driving device according to claim 7, characterized in that: The outer wall of the clamping seat is concavely provided with a positioning groove (52), the positioning groove (52) and the opening are arranged back to back, the mounting component (1) is fixed with a positioning column (11), and the positioning column (11) is adapted to be connected to the positioning groove (52); the clamping seat is convexly provided with two lugs (53), the clamping mechanism (5) is arranged on the outer wall of the mounting component (1), and a fixing piece is also provided which passes through the lugs (53) and is locked to the mounting component (1).

11. The transmission device of the vehicle-mounted display flipping driving device according to claim 7, characterized in that: The clamping mechanism (5) comprises a second C-shaped member (54) capable of elastic deformation, the mounting component (1) having a connecting hole (12) for the transmission shaft (3) to pass through, the second C-shaped member (54) being arranged between the transmission shaft (3) and the connecting hole (12), and the friction torque between the second C-shaped member (54), the transmission shaft (3) and the connecting hole (12) forming a resistance.

12. The transmission device of the vehicle-mounted display flipping driving device according to claim 7, characterized in that: Also includes: The transmission mechanism (6) is installed in the mounting component (1) and is transmission-connected to the transmission shaft (3).

13. The transmission device of the vehicle-mounted display flip driving device according to claim 1, characterized in that: The transmission shaft (3) and the output shaft (2) are sleeve-connected, and the clutch member comprises an elastically deformable circular ring member, which is arranged between the sleeves of the transmission shaft (3) and the output shaft (2).

14. The transmission device of the vehicle-mounted display flip driving device is characterized by: include: Output shaft (2); A gear, which is sleeved on the outside of the output shaft (2); A clutch mechanism (4) comprising a clutch member, the clutch member being sleeved between the gear and the output shaft (2), and transmitting power through the friction torque between the clutch member, the output shaft (2) and the gear, and the clutch mechanism (4) being in a disengaged state when the torque applied to the output shaft (2) is greater than the friction torque, and in a engaged state when the torque applied to the output shaft (2) is less than the friction torque; and The clamping mechanism (5) is connected to the output shaft (2) and when the torque applied to the output shaft (2) is less than the resistance of the clamping mechanism (5), the clamping mechanism (5) clamps the output shaft (2); when the torque applied to the output shaft (2) is greater than the resistance of the clamping mechanism (5), the output shaft (2) rotates.

15. The vehicle-mounted display flip driving device is characterized by: It comprises a transmission device and a motor (7) of the vehicle-mounted display flipping drive device according to claim 12, wherein the motor (7) is mounted on the mounting component (1) and the transmission mechanism (6) connects the motor (7) and the transmission shaft (3).

16. The vehicle-mounted display flip driving device is characterized by: It comprises a transmission device and a reduction motor (7') of the vehicle-mounted display flipping drive device according to claim 7. The reduction motor (7') is mounted on the mounting component (1), and the reduction motor (7') is transmission-connected to a first gear (61) fixed on the transmission shaft (3).

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