Clutch mechanism and enclasping mechanism of vehicle-mounted display turnover driving device

Abstract

The utility model discloses a clutch mechanism and an enclasping mechanism of a turnover driving device of a vehicle-mounted display. The clutch mechanism is connected with two rotating parts of which the axes are overlapped; the utility model relates to a clutch which comprises a C-shaped piece capable of elastically deforming, the two rotating pieces are connected in an inner and outer sleeved mode, the C-shaped piece is arranged between the inner and outer sleeved mode of the two rotating pieces, the C-shaped piece is tightly connected outside one rotating piece in a sleeved mode, the C-shaped piece is tightly connected inside the other rotating piece in a sleeved mode, and friction torque is formed between the C-shaped piece and the two rotating pieces. When the torque borne by the rotating piece is larger than the friction torque, the clutch mechanism is in a clutch state, and when the torque borne by the rotating piece is smaller than the friction torque, the clutch mechanism is in a clutch state. The clutch mechanism has the advantages that friction torques are formed between the C-shaped piece and the two rotating pieces, power is transmitted through the two friction torques, the clutch mechanism is in a clutch state when the torque borne by the rotating pieces is larger than the friction torques, the clutch mechanism is in a clutch state when the torque borne by the rotating pieces is smaller than the friction torques, clutch accuracy can be improved, and fixed torque output is achieved.

Description

Technical Field

[0001] This utility model relates to components of vehicle-mounted displays, and more particularly to the clutch mechanism and clamping mechanism of a vehicle-mounted display flip drive device. Background Technology

[0002] The Chinese Patent Database discloses utility model CN220910287U, a vehicle-mounted display driving device with a clamping brake. The device comprises a housing assembly, on which a first motor and an output shaft are mounted. The output shaft is rotatably connected to the housing assembly and has a coaxial gear. Several gear shafts are rotatably connected within the housing assembly, each bearing a transmission gear. These transmission gears are sequentially connected and transmit the output power of the first motor to the output shaft. One gear shaft has a tolerance ring fitted on it, and two transmission gears are connected to it. These two transmission gears are respectively connected to transmission gears on the other gear shafts or the coaxial gear on the output shaft. One transmission gear on this gear shaft is fitted onto the tolerance ring, while the other transmission gear is fixedly connected to the gear shaft. The tolerance ring provides a damping torque between the transmission gear and the output shaft. When the relative torque between the gear shaft and the transmission gear exceeds the damping torque, relative rotation occurs between the gear shaft and the transmission gear. The housing assembly also includes a clamping brake device for clamping the output shaft. The tolerance ring creates a damping torque between the transmission gear and the output shaft. This damping torque controls the clutch, but the clutch structure has low control accuracy and requires further improvement. Utility Model Content

[0003] This utility model provides a clutch mechanism and a clamping mechanism for a vehicle display flip drive device, which overcomes the shortcomings of the clutch mechanism and clamping mechanism in the prior art.

[0004] One of the technical solutions adopted by this utility model to solve its technical problem is: a clutch mechanism of a vehicle display flip drive device, which connects two rotating parts with coincident axes; it includes a C-shaped part that can be elastically deformed, the two rotating parts are connected by inner and outer sleeves, the C-shaped part is disposed between the inner and outer sleeves of the two rotating parts, the C-shaped part is tightly fitted outside one rotating part and tightly fitted inside the other rotating part, and frictional torque is formed between the C-shaped part and the two rotating parts, and power is transmitted through the frictional torque. When the torque on the rotating part is greater than the frictional torque, the clutch mechanism is in the disengaged state, and when it is less than the frictional torque, it is in the engaged state.

[0005] In one embodiment: the central angle of the C-shaped component is greater than 300 degrees and less than 360 degrees; the C-shaped component has a wavy structure area, which has a wavy structure with concave and convex intervals in the thickness direction, and the interval arrangement direction is parallel to the sleeve axis; the C-shaped component has multiple circumferentially spaced wavy structure areas.

[0006] In one embodiment: the wave-shaped structure has an inner wall protrusion, an inner wall concave portion, an outer wall protrusion, and an outer wall concave portion. The inner wall protrusion and the outer wall concave portion correspond to each other internally and externally, and the inner wall concave portion and the outer wall protrusion correspond to each other internally and externally. The inner wall protrusion, the outer wall concave portion, the outer wall protrusion, and the inner wall concave portion are all strip-shaped structures and are perpendicularly connected to the axis.

[0007] In one embodiment: both the inner wall recess and the outer wall recess have an inwardly concave arc surface structure.

[0008] In one embodiment: the two rotating parts are a power shaft and a transmission shaft, respectively. The output shaft has a supply slot at its end, and the end of the transmission shaft is inserted into the supply slot to form an inner and outer sleeve connection.

[0009] In one embodiment: the two rotating parts are a drive shaft and a gear, the gear has an inner hole, and the drive shaft passes through the inner hole of the gear to form an inner and outer coupling.

[0010] The second technical solution adopted by this utility model to solve its technical problem is: a clamping mechanism of the vehicle display flipping drive device, which connects the mounting component and the rotating component that can be rotatably connected to the mounting component; it includes a C-shaped component that can be elastically deformed, the mounting component is provided with a connecting hole for the rotating component to pass through, the C-shaped component is tightly fitted outside the rotating component and the C-shaped component is tightly fitted inside the connecting hole, and a frictional torque is formed between the C-shaped component, the rotating component, and the connecting hole, and the rotating component is clamped by the frictional torque.

[0011] In one embodiment: the central angle of the C-shaped component is greater than 300 degrees and less than 360 degrees; the C-shaped component has a wavy structure area, which has a wavy structure with concave and convex intervals in the thickness direction, and the interval arrangement direction is parallel to the sleeve axis; the C-shaped component has multiple circumferentially spaced wavy structure areas.

[0012] In one embodiment: the wave-shaped structure has an inner wall protrusion, an inner wall concave portion, an outer wall protrusion, and an outer wall concave portion. The inner wall protrusion and the outer wall concave portion correspond to each other internally and externally, and the inner wall concave portion and the outer wall protrusion correspond to each other internally and externally. The inner wall protrusion, the outer wall concave portion, the outer wall protrusion, and the inner wall concave portion are all strip-shaped structures and are perpendicularly connected to the axis.

[0013] In one embodiment: the mounting component includes a mounting surface and a fixing sleeve fixed to the mounting surface. The mounting surface is provided with a mounting hole, and the fixing sleeve is provided with the aforementioned connecting hole. The mounting hole and the connecting hole are arranged coaxially, and the rotating component also passes through the mounting hole.

[0014] The third technical solution adopted by this utility model to solve its technical problem is: a clamping mechanism of a vehicle display flipping drive device, which connects a mounting component and a rotating component that can be rotatably connected to the mounting component; it includes a C-shaped component that can be elastically deformed, the C-shaped component is fixed to the mounting component, a clamping groove is formed in the C-shaped component, and protrusions are provided at both ends of the C-shaped component towards the groove of the clamping groove; the outer end of the rotating component passes through the mounting component and extends into the clamping groove, and the C-shaped component tightly clamps the outer end of the rotating component, and resistance is generated by the clamping of the C-shaped component and the rotating component.

[0015] Compared with the prior art, this technical solution has the following advantages:

[0016] Frictional torques are generated between the C-shaped component and the two rotating components. Power is transmitted through the two frictional torques. When the torque on the rotating component is greater than the frictional torque, the clutch mechanism is in the disengaged state; when it is less, it is in the engaged state. This can improve clutch accuracy and achieve constant torque output.

[0017] Frictional torques are generated between the C-shaped component and the two rotating components. The rotating components are held together by the two frictional torques, and the holding force can be accurately controlled. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a three-dimensional exploded view of the clutch mechanism in Specific Implementation Example 1.

[0020] Figure 2 This is a cross-sectional schematic diagram of the clutch mechanism in Specific Implementation Embodiment 1.

[0021] Figure 3 This is a three-dimensional exploded view of the drive device of the clutch mechanism in the first embodiment.

[0022] Figure 4 This is a three-dimensional exploded view of the clutch mechanism in Embodiment 2 of the specific implementation method.

[0023] Figure 5 This is a cross-sectional schematic diagram of the clutch mechanism in Embodiment 2 of the specific implementation method.

[0024] Figure 6 This is a three-dimensional schematic diagram of the C-shaped component in Embodiment 2 of the specific implementation method.

[0025] Figure 7 This is a three-dimensional exploded view of the drive device of the clutch mechanism in Embodiment 2.

[0026] Figure 8 This is a three-dimensional exploded view of the drive device of the clamping mechanism in Application Embodiment 3.

[0027] Figure 9This is a three-dimensional schematic diagram of the drive device for the clutch mechanism in Application Embodiment 2.

[0028] Figure 10 This is a three-dimensional exploded view of the drive device of the clutch mechanism in Embodiment 2. Detailed Implementation

[0029] Example 1

[0030] Please refer to Figures 1 to 3 The clutch mechanism of the vehicle display flip drive device connects two rotating parts with their axes of rotation being the axis of rotation of the rotating parts. The clutch mechanism includes a C-shaped part 1 that can be elastically deformed. The two rotating parts are connected by an inner and outer sleeve. The C-shaped part 1 is located between the inner and outer sleeves of the two rotating parts. The C-shaped part 1 is tightly fitted outside the first rotating part and tightly fitted inside the second rotating part. Frictional torque is formed between the C-shaped part 1 and the two rotating parts. Power is transmitted through the frictional torque. When the torque on the rotating part is greater than the frictional torque, the clutch mechanism is in the disengaged state. In the disengaged state, if the C-shaped part and the first rotating part can rotate relative to each other, or / and the C-shaped part and the second rotating part can rotate relative to each other, and if the torque is less than the frictional torque, the clutch mechanism is in the engaged state. In this embodiment, the two rotating parts are a drive shaft and a gear, respectively. The drive shaft is a power output shaft 21, which is connected to a flipping device to flip the display. The gear is a first gear 22, which has an inner hole 221. The output shaft 21 passes through the inner hole 221 to form an inner and outer sleeve connection. A frictional torque is formed between the C-shaped inner wall of the C-shaped part 1 and the output shaft 21, and a frictional torque is formed between the C-shaped outer wall of the C-shaped part 1 and the inner wall of the inner hole 221.

[0031] The central angle of the C-shaped component 1 is greater than 300 degrees and less than 360 degrees, such as 350-360 degrees, which makes the C-shaped component elastic, allowing it to be tightly fitted outside the first rotating component and tightly installed inside the second rotating component. The C-shaped component 1 has a wavy structure with alternating concave and convex shapes in the thickness direction, so that both the inner and outer walls of the C-shaped component form wavy structures with alternating concave and convex shapes. The direction of the alternation is parallel to the connecting axis. The wavy structure has an inner wall protrusion, an inner wall concave portion, an outer wall protrusion 11, and an outer wall concave portion 12. The inner wall protrusion and the outer wall concave portion correspond to each other inside and outside, and the inner wall concave portion and the outer wall protrusion correspond to each other inside and outside. The inner wall protrusion, the outer wall concave portion, the outer wall protrusion, and the inner wall concave portion are all strip-shaped structures and are perpendicular to the connecting axis. The inner wall concave portion and the outer wall concave portion are all concave arc surface structures. The inner wall protrusion and the outer wall of the first rotating component are in close contact to generate frictional torque. The outer wall protrusion and the inner wall of the second rotating component are in close contact to generate frictional torque. If a C-shaped component is used, elastic deformation can be achieved by changing the size of the C-shaped opening. If a wave-shaped structure is used, elastic deformation can be achieved by changing the radial (thickness direction) size of the concave and convex parts. The dual elastic deformation can improve the elastic deformation capability, improve the accuracy of frictional torque control, improve the clutch accuracy, and achieve a constant torque (such as controlling the clutch torque size by setting a predetermined frictional torque size through the structure).

[0032] The drive device for the clutch mechanism in Application Embodiment 1 includes a mounting component 301, a motor 302 mounted on the mounting component 301, and a transmission mechanism 303 installed within the mounting component 301. The output shaft 21 is rotatably connected to the mounting component 301, and the power shaft of the motor 302 extends into the mounting component 301. The transmission mechanism 303 drives the power shaft of the motor 302 and the first gear 22. If necessary, a geared motor can be used instead of the motor, in which case the transmission mechanism can be omitted, and the power shaft of the geared motor directly drives the first gear 22.

[0033] Example 2

[0034] Please refer to Figures 4 to 7 The difference between this embodiment and Embodiment 1 is that the transmission shaft of this clutch mechanism is an intermediate shaft 23, and the gear of the clutch mechanism is a second gear 24. The second gear 24 has a second inner hole, and the intermediate shaft 23 passes through the second inner hole to form an inner and outer sleeve connection. A frictional torque is formed between the C-shaped inner wall of the C-shaped member 1 and the intermediate shaft 23, and a frictional torque is formed between the C-shaped outer wall of the C-shaped member 1 and the inner wall of the second inner hole. The C-shaped member 1 has multiple circumferentially spaced wavy structural regions, and each wavy structural region has a concave-convex wavy structure in the thickness direction.

[0035] The difference between the drive device of the clutch mechanism in Application Embodiment Two and the drive device in Application Embodiment One is that a transmission gear 231 is fixed on the intermediate shaft 23 to connect to the transmission mechanism 303, and the second gear 24 meshes with the first gear 22 of the output shaft 21 (the first gear 22 is fixed on the output shaft 21). If necessary, a geared motor can be used instead of the motor, in which case the transmission mechanism can be omitted, and the power shaft of the geared motor is directly connected to the second gear 24.

[0036] Example 3

[0037] Please refer to Figure 8 The clamping mechanism of the vehicle display flip-up drive device connects the mounting component 301 and a rotating component rotatably connected to the mounting component 301. The clamping mechanism includes a second C-shaped member 41 that can elastically deform. The mounting component 301 has a connecting hole 42 through which the rotating component passes. The second C-shaped member 41 is tightly fitted outside the rotating component and inside the connecting hole 42. Frictional torque is formed between the second C-shaped member 41, the rotating component, and the connecting hole 42, thereby clamping the rotating component. In this embodiment, the rotating component is a power output shaft 21, which is rotatably connected to the mounting component 301. The mounting component 301, power output shaft 21, motor, and reduction mechanism are as described in Embodiment 1.

[0038] The central angle of the second C-shaped component 41 is greater than 300 degrees and less than 360 degrees, such as 350-360 degrees, giving the second C-shaped component 41 elasticity, allowing it to tightly fit around the output shaft 21 and be tightly installed inside the connecting hole 42. The second C-shaped component 41 has multiple circumferentially spaced wavy structural regions. These wavy structural regions have a concave-convex wavy structure in the thickness direction, forming a concave-convex wavy structure on both the inner and outer walls of the C-shape. This concave arrangement is parallel to the axis of connection. The wavy structure has inner wall protrusions, inner wall recesses, outer wall protrusions, and outer wall recesses. The inner wall protrusions and outer wall recesses correspond internally and externally, as do the inner wall recesses and outer wall protrusions. All the inner wall protrusions, outer wall recesses, and outer wall protrusions are strip-shaped structures and perpendicular to the axis of connection. Both the inner wall recesses and outer wall recesses have an inwardly concave arc surface structure. The inner wall protrusion and the outer wall of the output shaft 21 are in close contact to generate frictional torque. The outer wall protrusion and the inner wall of the connecting hole 42 are in close contact to generate frictional torque. If a second C-shaped part 41 is provided, elastic deformation can be achieved by changing the size of the opening of the second C-shaped part 41. If a wave-shaped structure is provided, elastic deformation can be achieved by changing the radial size of the concave and convex parts. The dual elastic deformation can improve the elastic deformation capability, improve the accuracy of frictional torque control, and accurately control the clamping force.

[0039] The mounting component 301 includes a mounting surface 304 and a fixing sleeve 43 fixedly attached to the mounting surface. The mounting surface has a mounting hole, and the fixing sleeve 43 has the aforementioned connecting hole 42. The mounting hole and the connecting hole are arranged coaxially, and the output shaft 21 also passes through the mounting hole. The fixing sleeve 43 extends outward around its circumference to form a fixing plate 431, which is fixedly attached to the mounting surface. The fixing plate has two protruding lugs 432. The fixing plate is placed on the mounting surface 304, and a fastener, such as a screw, passes through the lugs and locks onto the protrusion.

[0040] Example 4

[0041] Please refer to Figure 9 and Figure 10The difference between this embodiment and Embodiment 3 is that it includes a third C-shaped member 51 capable of elastic deformation. This C-shaped member 51 is fixed to the mounting surface 304 of the mounting component. A clamping groove 52 is formed within the third C-shaped member 51, and protrusions 53 protrude from both ends of the third C-shaped member 51 into the clamping groove 52. The outer end of the power output shaft 21 of the rotating component passes through the mounting component and extends into the clamping groove, with the third C-shaped member 51 tightly clamping the outer end of the output shaft 21. Resistance is generated through the clamping of the third C-shaped member 51 and the output shaft 21. The groove wall of the clamping groove 52 includes an arc-shaped surface with a central angle greater than 180 degrees, such as 300-350 degrees. The protrusions 53 on both sides of the opening are respectively connected to the two ends of the arc-shaped surface. The inner wall of the protrusion is a smooth curved surface that smoothly transitions to the arc-shaped surface. Specifically, the two sides of the protrusion 53 are arc surfaces, and the top surface of the protrusion is similar to a plane. The outer peripheral wall of the third C-shaped member 51 is recessed with a positioning groove. The positioning groove and the C-shaped opening of the third C-shaped member 51 are arranged opposite to each other. The mounting surface 304 is fixed with a positioning post, which is adapted to connect to the positioning groove 52. The third C-shaped member 51 is provided with two protruding lugs, which are respectively arranged on both sides of the positioning groove. A fixing member, such as a screw, passes through the lugs and is locked to the mounting surface 304.

[0042] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A clutch mechanism for a vehicle-mounted display flip-up drive device, which connects two rotating parts with coincident axes; characterized in that: It includes a C-shaped member that can elastically deform. The two rotating members are connected by an inner and outer sleeve. The C-shaped member is located between the inner and outer sleeves of the two rotating members. The C-shaped member is tightly fitted outside one rotating member and tightly fitted inside the other rotating member. Frictional torque is formed between the C-shaped member and the two rotating members. Power is transmitted through the frictional torque. When the torque on the rotating member is greater than the frictional torque, the clutch mechanism is in the disengaged state. When it is less than the frictional torque, the clutch mechanism is in the engaged state.

2. The clutch mechanism of the vehicle-mounted display flip-up drive device according to claim 1, characterized in that: The central angle of the C-shaped component is greater than 300 degrees and less than 360 degrees; the C-shaped component has a wavy structure area, which has a wavy structure with concave and convex intervals in the thickness direction, and the interval arrangement direction is parallel to the sleeve axis; the C-shaped component has multiple circumferentially spaced wavy structure areas.

3. The clutch mechanism of the vehicle-mounted display flip-up drive device according to claim 2, characterized in that: The wave-shaped structure has an inner wall protrusion, an inner wall concave portion, an outer wall protrusion, and an outer wall concave portion. The inner wall protrusion and the outer wall concave portion correspond to each other internally and externally, and the inner wall concave portion and the outer wall protrusion correspond to each other internally and externally. The inner wall protrusion, the outer wall concave portion, the outer wall protrusion, and the inner wall concave portion are all strip-shaped structures and are perpendicularly connected to the axis.

4. The clutch mechanism of the vehicle-mounted display flip-up drive device according to claim 3, characterized in that: Both the inner and outer wall recesses have an inwardly concave arc surface structure.

5. The clutch mechanism of the vehicle-mounted display flip-up drive device according to any one of claims 1 to 4, characterized in that: The two rotating parts are a power shaft and a transmission shaft, respectively. The output shaft has a supply slot at its end, and the end of the transmission shaft is inserted into the supply slot to form an inner and outer coupling.

6. The clutch mechanism of the vehicle-mounted display flip-up drive device according to any one of claims 1 to 4, characterized in that: The two rotating parts are a drive shaft and a gear, respectively. The gear has an inner hole, and the drive shaft passes through the inner hole of the gear to form an inner and outer coupling.

7. A clamping mechanism for a vehicle-mounted display tilting drive device, comprising a mounting component and a rotating component rotatably connected to the mounting component; characterized in that: It includes a C-shaped member that can elastically deform. The mounting component has a connecting hole through which the rotating member passes. The C-shaped member is tightly fitted outside the rotating member and inside the connecting hole. Frictional torque is formed between the C-shaped member, the rotating member, and the connecting hole, and the rotating member is held tightly by the frictional torque.

8. The clamping mechanism of the vehicle-mounted display flipping drive device according to claim 7, characterized in that: The central angle of the C-shaped component is greater than 300 degrees and less than 360 degrees; the C-shaped component has a wavy structure area, which has a wavy structure with concave and convex intervals in the thickness direction, and the interval arrangement direction is parallel to the sleeve axis; the C-shaped component has multiple circumferentially spaced wavy structure areas.

9. The clamping mechanism of the vehicle-mounted display flipping drive device according to claim 8, characterized in that: The wave-shaped structure has an inner wall protrusion, an inner wall concave portion, an outer wall protrusion, and an outer wall concave portion. The inner wall protrusion and the outer wall concave portion correspond to each other internally and externally, and the inner wall concave portion and the outer wall protrusion correspond to each other internally and externally. The inner wall protrusion, the outer wall concave portion, the outer wall protrusion, and the inner wall concave portion are all strip-shaped structures and are perpendicularly connected to the axis.

10. The clamping mechanism of the vehicle-mounted display flipping drive device according to claim 7, characterized in that: The mounting component includes a mounting surface and a fixing sleeve fixed to the mounting surface. The mounting surface has a mounting hole, and the fixing sleeve has the aforementioned connecting hole. The mounting hole and the connecting hole are arranged coaxially, and the rotating component also passes through the mounting hole.

11. A clamping mechanism for a vehicle-mounted display tilting drive device, comprising a mounting component and a rotating component rotatably connected to the mounting component; characterized in that: It includes a C-shaped member that can be elastically deformed, which is fixed to the mounting component. A clamping groove is formed in the C-shaped member, and protrusions are provided at both ends of the C-shaped member toward the clamping groove. The outer end of the rotating member passes through the mounting component and extends into the clamping groove, and the C-shaped member tightly hugs the outer end of the rotating member. Resistance is generated by the clamping of the C-shaped member and the rotating member.

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