Transmission mechanism, hinge structure and electronic equipment

Abstract

This application provides a transmission mechanism, a hinge structure, and an electronic device. The transmission mechanism includes a transmission component and a speed regulation component. The transmission component includes a first transmission member, a second transmission member, and an output member. The speed regulation component includes a controller. The first transmission member includes a first sun gear and a transmission shaft. The second transmission member includes a first gear ring, which surrounds the first sun gear and is coaxially arranged with the first sun gear. The output member includes a first planetary gear and an output shaft. The first planetary gear meshes with the first sun gear and the first gear ring, respectively. The output shaft is coaxially arranged with the first sun gear. One end of the output shaft is connected to the first planetary gear, and the other end is the output end. A controller is sleeved on the outside of the first gear ring, and the controller sleeved on the outside of the first gear ring serves as the first controller. The first controller is connected to the first gear ring. In the locked state, the first controller fixes the first gear ring. In the unlocked state, the first controller releases the first gear ring.

Description

Technical Field

[0001] This application relates to the field of transmission technology, and in particular to a transmission mechanism, hinge structure and electronic equipment. Background Technology

[0002] In electronic devices such as mobile phones, foldable screen terminals, and laptops, two parts that can be opened and closed relative to each other (such as the host and the screen, or the main screen and the secondary screen) are usually connected and rotated through a transmission mechanism.

[0003] The transmission mechanism in existing electronic devices can only achieve a single speed output, which makes it impossible to flexibly adapt the opening and closing speeds of the two parts of the device to the usage scenario. This makes it difficult to meet the different needs of different users for opening and closing efficiency and limits the user experience of the device. Utility Model Content

[0004] This application provides a transmission mechanism, a hinge structure, and an electronic device.

[0005] A first aspect of this application provides a transmission mechanism, the transmission mechanism including a transmission component and a speed regulating component; the transmission component includes a first transmission element, a second transmission element and an output element; the speed regulating component includes a controller; The first transmission component includes a first sun gear and a transmission shaft; the first sun gear is disposed at the end of the transmission shaft, and the transmission shaft is used to drive the first sun gear to rotate; The second transmission component includes a first gear ring, which surrounds the first sun gear and is coaxially arranged with the first sun gear; The output component includes a first planetary gear and an output shaft; the first planetary gear is located between the first sun gear and the first gear ring, and meshes with the first sun gear and the first gear ring respectively; the output shaft is coaxially arranged with the first sun gear; one end of the output shaft is connected to the first planetary gear, and the other end is the output end; The controller includes a locked state and an unlocked state; a controller is sleeved on the outside of the first toothed ring, and the controller sleeved on the outside of the first toothed ring is used as a first controller; the first controller is connected to the first toothed ring; in the locked state, the first controller fixes the first toothed ring; in the unlocked state, the first controller releases the first toothed ring.

[0006] In some embodiments, the first transmission member further includes a second sun gear located on the side of the first sun gear away from the output shaft; the second sun gear is coaxially arranged with the first sun gear and connected to the first sun gear through the transmission shaft; The second transmission component further includes a second gear ring and a second planetary gear. The second planetary gear is located between the second sun gear and the second gear ring, and meshes with the second sun gear and the second gear ring respectively. The second planetary gear can rotate around the second sun gear and drive the first gear ring to rotate. The controller is sleeved on the outside of the second toothed ring, and the controller sleeved on the outside of the second toothed ring serves as the second controller; the second controller is connected to the second toothed ring; in the locked state, the second controller fixes the second toothed ring; in the unlocked state, the second controller releases the second toothed ring.

[0007] In some embodiments, the transmission mechanism further includes a first housing, which is fixedly disposed; the first gear ring and the second gear ring are disposed within the first housing; In the locked state, the first controller fixes the first gear ring to the first housing; in the unlocked state, the first controller releases the fixation between the first gear ring and the first housing. In the locked state, the second controller fixes the second gear ring to the first housing; in the unlocked state, the second controller releases the fixation between the second gear ring and the first housing.

[0008] In some embodiments, the second transmission member further includes a first rotating part, the first rotating part being coaxially disposed with the first gear ring, and the side of the first rotating part facing the first gear ring being connected to the first gear ring through a first connecting part; The side of the first rotating part facing the first gear ring is also connected to the second planetary gear. The second planetary gear drives the first rotating part to rotate, and the first rotating part drives the first gear ring to rotate through the first connecting part.

[0009] In some embodiments, the first transmission member further includes a second rotating part; the second rotating part is coaxially disposed with the first sun gear and connected to the first sun gear through the transmission shaft; The second transmission component further includes a third rotating part, which is coaxially arranged with the first gear ring. The third rotating part is rotatable and drives the first gear ring to rotate. A controller is sleeved on the outer side of the third rotating part, and the controller sleeved on the outer side of the third rotating part is used as the third controller; in the locked state, the third controller fixes the second rotating part and the third rotating part together; in the unlocked state, the third controller releases the fixation between the second rotating part and the third rotating part.

[0010] In some embodiments, the transmission mechanism further includes a second housing, the second rotating part is disposed inside the second housing and is fixedly connected to the second housing, the second rotating part is rotatable and drives the second housing to rotate synchronously; The third rotating part is disposed inside the second housing. In the locked state, the third controller fixes the third rotating part to the second housing; in the unlocked state, the third controller releases the fixation between the third rotating part and the second housing.

[0011] In some embodiments, the transmission mechanism further includes a motor and an input shaft, the input shaft being used to drive the first sun gear to rotate; A controller is sleeved on the outside of the input shaft, and the controller sleeved on the outside of the input shaft is used as a fourth controller; in the locked state, the fourth controller fixes the input shaft to the first sun gear; in the unlocked state, the fourth controller releases the fixed connection between the input shaft and the first sun gear.

[0012] In some embodiments, the first transmission member further includes a second rotating portion located on the side of the second sun gear away from the first sun gear; the second rotating portion is coaxially arranged with the first sun gear and connected to the first sun gear through the transmission shaft; The end face of the second rotating part away from the first sun gear is recessed inward to form a recessed part, the input shaft extends into the recessed part, and the input shaft is coaxially arranged with the second rotating part; In the locked state, the fourth controller fixes the input shaft to the second rotating part; in the unlocked state, the fourth controller releases the fixed connection between the input shaft and the second rotating part.

[0013] In some embodiments, the controller includes a clutch and an actuator; the clutch includes a plurality of clutch plates; in the locked state, the actuator presses the plurality of clutch plates against the controller; in the unlocked state, the actuator releases the plurality of clutch plates.

[0014] In some embodiments, the actuator includes a baffle, a pressure block, an elastic element, and a clamping part; the baffle is provided with an electromagnet, and the pressure block is provided with a permanent magnet; When the electromagnet of the baffle is not energized, the edge of the elastic element presses against the pressing part, and the pressing part presses against the plurality of clutch plates, so that the controller is in the locked state; When the electromagnet of the baffle is energized, the baffle applies a repulsive force to the pressure block, the pressure block presses against the center of the elastic member, causing the edge of the elastic member to move away from the pressing part, thus putting the controller in the unlocked state.

[0015] A second aspect of this application provides a hinge structure comprising two sets of the aforementioned transmission mechanisms; the two sets of transmission mechanisms are arranged side by side, and each set of transmission mechanisms has a lever at the output end of its output shaft; the hinge structure can adjust the rotational speed of the lever by adjusting the rotational speed of the output shaft of each set of transmission mechanisms.

[0016] A third aspect of this application provides an electronic device comprising a first main body, a second main body, and a hinge structure as described above; one lever of the hinge structure is connected to the first main body, and the other lever is connected to the second main body. A lever connected to the first main body can drive the first main body to rotate around the hinge structure, and a lever connected to the second main body can drive the second main body to rotate around the hinge structure.

[0017] The transmission mechanism provided in this application embodiment can achieve rapid switching between a fixed transmission ratio and a variable transmission ratio by controlling the state of the first gear ring through a first controller, so that the output shaft has different speeds to meet the user's needs for different speed adjustments.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0020] Figure 1 An exploded view of a hinge structure provided in an embodiment of this application; Figure 2 A cross-sectional view of a transmission mechanism provided in an embodiment of this application; Figure 3 A schematic diagram of the structure of the first transmission component of a transmission mechanism provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the second transmission component of a transmission mechanism provided in an embodiment of this application; Figure 5 and Figure 6 A schematic diagram of the clutch structure of a transmission mechanism provided in an embodiment of this application; Figure 7A schematic diagram of the structure of the baffle of the transmission mechanism provided in an embodiment of this application; Figure 8 and Figure 9 This is a schematic diagram of the actuator of a transmission mechanism provided in an embodiment of this application.

[0021] Figure label: Transmission assembly 10; First transmission component 11; First sun gear 111; Transmission shaft 112; Second sun gear 113; Second rotating part 114; Recessed part 1141; Second transmission component 12; First gear ring 121; Second gear ring 122; Second planetary gear 123; First rotating part 124; First connecting part 125; Third rotating part 126; Second connecting part 127; Output component 13; First planetary gear 131; Output shaft 132; Mounting part 1321; Speed ​​adjustment assembly 20; First controller 21; Second controller 22; Third controller 23; Fourth controller 24; Clutch 201; Clutch plate 2011; Actuator 202; Baffle 2021; Pressure block 2022; Elastic element 2023; Pressing part 2024; Electromagnet 2025; Permanent magnet 2026; First housing 31; Second housing 32; Motor 41; Input shaft 42; Reducer 43; Lever 50. Detailed Implementation

[0022] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0023] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0024] The transmission mechanism, hinge structure, and electronic device of the present application embodiments are described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementation methods can complement or combine with each other.

[0025] This application provides a transmission mechanism, such as... Figure 1 and Figure 2As shown, the transmission mechanism includes a transmission component 10 and a speed regulating component 20.

[0026] The transmission assembly 10 includes a first transmission component 11, a second transmission component 12, and an output component 13, and the speed regulation assembly 20 includes a controller.

[0027] like Figure 1 and Figure 3 As shown, the first transmission component 11 includes a first sun gear 111 and a transmission shaft 112. The first sun gear 111 is located at the end of the transmission shaft 112, and the transmission shaft 112 is used to drive the first sun gear 111 to rotate.

[0028] like Figure 1 and Figure 4 As shown, the second transmission component 12 includes a first gear ring 121, which surrounds the first sun gear 111 and is coaxially arranged with the first sun gear 111.

[0029] like Figure 1 and Figure 2 As shown, the output component 13 includes a first planetary gear 131 and an output shaft 132. The first planetary gear 131 is located between the first sun gear 111 and the first ring gear 121, and meshes with both the first sun gear 111 and the first ring gear 121. The output shaft 132 is coaxially arranged with the first sun gear 111. One end of the output shaft 132 is connected to the first planetary gear 131, and the other end is the output end.

[0030] like Figure 1 and Figure 2 As shown, the controller includes a locked state and an unlocked state. A controller is sleeved on the outer side of the first toothed ring 121, and the controller sleeved on the outer side of the first toothed ring 121 serves as the first controller 21. The first controller 21 is connected to the first toothed ring 121. In the locked state, the first controller 21 fixes the first toothed ring 121; in the unlocked state, the first controller 21 releases the first toothed ring 121.

[0031] In the transmission mechanism provided in this application embodiment, the transmission shaft 112 of the first transmission member 11 serves as the power input end, and the first sun gear 111 at its end rotates synchronously with the transmission shaft 112. The first sun gear 111 meshes with the first planet gear 131. The rotation of the first sun gear 111 drives the first planet gear 131 to rotate around the first sun gear 111. The first planet gear 131 drives the output shaft 132 to rotate, thereby realizing power output.

[0032] The first controller 21 switches between locked and unlocked states to change the transmission ratio of the output shaft 132. In the locked state, the first controller 21 limits the first gear ring 121 to ensure that the first gear ring 121 remains stationary during power transmission. After receiving external driving force, the transmission shaft 112 drives the coaxial first sun gear 111 to rotate at a constant speed. Since the first planet gear 131 meshes with both the first sun gear 111 and the first gear ring 121, the first planet gear 131 rotates on its own axis while revolving around the first sun gear 111. The revolution of the first planet gear 131 is converted into rotational power at the output end through the output shaft 132, thereby achieving a stable single speed output and giving the output shaft 132 a first speed.

[0033] When the first controller 21 is in the unlocked state, the first gear ring 121 is no longer restricted and can rotate freely around its own axis. At this time, during power transmission, the first gear ring 121 participates in the motion, and the transmission ratio changes with the rotational speed of the first gear ring 121.

[0034] The transmission mechanism provided in this application embodiment can achieve rapid switching between fixed transmission ratio and variable transmission ratio by controlling the state of the first gear ring 121 through the first controller, so that the output shaft 132 has different speeds to meet the user's needs for different speed adjustment.

[0035] In one embodiment, the transmission mechanism further includes a first housing 31 and a second housing 32. The first housing 31 is fixedly disposed, and the second housing 32 is rotatable in the circumferential direction.

[0036] In one embodiment, such as Figure 1 As shown, the controller includes a clutch 201 and an actuator 202. Figure 1 , Figure 5 and Figure 6 As shown, the clutch 201 includes multiple clutch plates 2011. In the locked state, the actuator 202 presses the multiple clutch plates 2011 together. In the unlocked state, the actuator 202 releases the multiple clutch plates 2011.

[0037] Taking the first controller 21 as an example, the clutch 201 of the first controller 21 includes clutch plates 2011a and 2011b arranged alternately. The inner ring of the clutch plate 2011a is provided with a protruding structure, and the outer ring of the clutch plate 2011b is provided with a protruding structure.

[0038] The outer ring of the first gear ring 121 has a groove structure, and the inner surface of the first housing 31 has a groove structure. Clutch plates 2011a and 2011b are both sleeved on the outer side of the first gear ring 121 and located between the first gear ring 121 and the first housing 31. The protrusion structure of the inner ring of clutch plate 2011a is engaged in the groove structure on the outer side of the first gear ring 121, and the protrusion structure of the outer ring of clutch plate 2011b is engaged in the groove structure on the inner surface of the first housing 31.

[0039] When the actuator 202 presses the multiple clutch plates 2011 together, friction exists between clutch plates 2011a and 2011b, preventing the first gear ring 121 from rotating the clutch plate 2011a, thus achieving a fixed connection between the first gear ring 121 and the first housing 31. When the actuator 202 releases the multiple clutch plates 2011, the friction between adjacent clutch plates 2011 decreases, allowing the first gear ring 121 to rotate the clutch plate 2011a within the first housing 31.

[0040] Furthermore, such as Figures 7 to 9 As shown, the actuator 202 includes a baffle 2021, a pressure block 2022, an elastic element 2023, and a pressing part 2024. The baffle 2021 is equipped with an electromagnet 2025, and the pressure block 2022 is equipped with a permanent magnet 2026.

[0041] When the electromagnet 2025 of the baffle 2021 is not energized, the edge of the elastic element 2023 presses against the pressing part 2024, and the pressing part 2024 presses against multiple clutch plates 2011, so that the controller is in a locked state.

[0042] When the electromagnet 2025 of the baffle 2021 is energized, the baffle 2021 applies a repulsive force to the pressure block 2022, causing the pressure block 2022 to press against the center of the elastic element 2023, thus moving the edge of the elastic element 2023 away from the pressing part 2024 and putting the controller in the unlocked state. The speed adjustment of the output shaft of the transmission mechanism can be achieved by switching the electromagnet of the baffle 2021 on and off.

[0043] Specifically, the elastic element 2023 is a disc-shaped spring, and the pressing part 2024 includes a hook 2024a and a hook frame 2024b. The hook frame 2024b is annular. When the controller is in the locked state, the edge of the disc-shaped spring abuts against the hook frame 2024b. When the baffle 2021 applies a repulsive force to the pressing block 2022, the middle part of the disc-shaped spring moves toward the hook frame 2024b, causing the edge of the disc-shaped spring to lift up and move away from the hook frame 2024b. At this time, the edge of the disc-shaped spring no longer applies pressure to the hook frame 2024b, and the controller is in the unlocked state.

[0044] This application may include four controllers, which are designated as the first to the fourth controllers respectively. The structure and control method of each controller are similar to those described above, and therefore will not be repeated here.

[0045] In one embodiment, such as Figure 1 As shown, the output shaft 132 includes two opposing ends, one of which is the output end, and the other end is provided with a mounting portion 1321. The mounting portion 1321 is located inside the first housing 31, and the output end extends out of the first housing 31. The end face of the mounting portion 1321 away from the output end is provided with a mounting hole. The first planetary gear 131 is mounted to the mounting hole by means of bolts or other connecting structures.

[0046] exist Figure 1 In the illustrated embodiment, the output component 13 includes three first planetary gears 131, which are mounted at intervals on the end face of the mounting portion 1321 away from the output end. When the first sun gear 111 rotates and drives the three first planetary gears 131 to revolve around the first sun gear 111, the three first planetary gears 131 drive the mounting portion 1321 to rotate, thereby driving the output shaft 132 to rotate, thus realizing the power transmission from the first sun gear 111 to the output shaft 132.

[0047] In one embodiment, such as Figure 1 and Figure 2 As shown, the first transmission component 11 also includes a second sun gear 113 located on the side of the first sun gear 111 away from the output shaft 132. The second sun gear 113 is coaxially arranged with the first sun gear 111 and is connected to the first sun gear 111 through the transmission shaft 112.

[0048] The second transmission component 12 also includes a second gear ring 122 and a second planetary gear 123. The second planetary gear 123 is located between the second sun gear 113 and the second gear ring 122, and meshes with both the second sun gear 113 and the second gear ring 122. The second planetary gear 123 can rotate around the second sun gear 113 and drive the first gear ring 121 to rotate.

[0049] A controller is fitted around the outer side of the second gear ring 122, and this controller serves as the second controller 22. The second controller 22 is connected to the second gear ring 122. In the locked state, the second controller 22 fixes the second gear ring 122; in the unlocked state, the second controller 22 releases the second gear ring 122.

[0050] In this embodiment, the drive shaft 112 is the power input end. When the drive shaft 112 rotates, it can drive the first sun gear 111 and the second sun gear 113, which are coaxially arranged, to rotate synchronously.

[0051] When the first controller 21 locks the first gear ring 121 and the second controller 22 unlocks the second gear ring 122, the rotational speed of the first planetary gear 131 revolving around the first sun gear 111 is determined by the gear ratio between the first sun gear 111 and the first gear ring 121 because the first gear ring 121 is fixed. At this time, the second sun gear 113 drives the second planetary gear 123 to rotate freely around the second gear ring 122, and the output shaft 132 revolves with the first planetary gear 131 to output power at the first rotational speed.

[0052] When the first controller 21 unlocks the first gear ring 121 and the second controller 22 locks the second gear ring 122, the second planetary gear 123, due to the fixation of the second gear ring 122, revolves around the second sun gear 113 and drives the first gear ring 121 to rotate synchronously. At this time, the first planetary gear 131 is simultaneously driven by the first sun gear 111 and the first gear ring 121. Its revolution speed is jointly determined by the rotation speed of the first sun gear 111 and the rotation speed of the first gear ring 121 (the revolution speed of the second sun gear 113). The output shaft 132 outputs power at the second rotation speed along with the first planetary gear 131.

[0053] In one embodiment, such as Figure 1 and Figure 2 As shown, the second gear ring 122 is disposed inside the first housing 31. The clutch 201 of the first controller 22 is sleeved on the outside of the second gear ring 122.

[0054] When the second controller 22 is in the locked state, the actuator 202 of the second controller 22 presses the clutch 201, so that the second gear ring 122 is fixedly connected to the first housing 31; when the second controller 22 is in the unlocked state, the second controller 22 releases the fixed connection between the second gear ring 122 and the first housing 31.

[0055] In one embodiment, such as Figure 1 and Figure 2 As shown, the second transmission component 12 also includes a first rotating part 124, which is coaxially arranged with the first gear ring 121, and the side of the first rotating part 124 facing the first gear ring 121 is connected to the first gear ring 121 through a first connecting part 125.

[0056] The side of the first rotating part 124 facing the first gear ring 121 is also connected to the second planetary gear 123. The second planetary gear 123 drives the first rotating part 124 to rotate, and the first rotating part 124 drives the first gear ring 121 to rotate through the first connecting part 125.

[0057] exist Figure 1In the embodiment shown, the second transmission component 12 includes three second planetary gears 123. The first rotating part 124 has three spaced mounting holes on its side facing the first gear ring 121. The three second planetary gears 123 are respectively mounted to the mounting holes of the first rotating part 124 by bolts or other connection structures.

[0058] The second gear ring 122 is located between the first rotating part 124 and the first gear ring 121, and surrounds the outside of the first connecting part 125. The diameter of the circumscribed circle formed by the three second planetary gears 123 is larger than the diameter of the first connecting part 125, so that the second planetary gears 123 and the second gear ring 122 can mesh.

[0059] The first connecting portion 125 includes a plurality of sub-connecting portions 1251 spaced apart circumferentially along the second transmission member 12. One end of each sub-connecting portion 1251 is connected to the side of the first rotating portion 124 facing the first gear ring 121, and the other end is connected to the end face of the first gear ring 121 facing the first rotating portion 124. The spaced arrangement of the sub-connecting portions 1251 facilitates the installation of the first planetary gear 131 and the second planetary gear 123.

[0060] In one embodiment, such as Figure 1 and Figure 2 As shown, the first transmission member 11 also includes a second rotating part 114 located on the side of the second sun gear 113 away from the first sun gear 111. The second rotating part 114 is coaxially arranged with the first sun gear 111 and is connected to the first sun gear 111 through a transmission shaft 112.

[0061] The second transmission component 12 also includes a third rotating part 126, which is coaxially arranged with the first gear ring 121. The third rotating part 126 can rotate and drive the first gear ring 121 to rotate.

[0062] A controller is sleeved on the outside of the third rotating part 126, and the controller sleeved on the outside of the third rotating part 126 is used as the third controller 23. In the locked state, the third controller 23 fixes the second rotating part 114 and the third rotating part 126 in a fixed connection; in the unlocked state, the third controller 23 releases the fixed connection between the second rotating part 114 and the third rotating part 126.

[0063] In this embodiment, when the first controller 21 locks the first gear ring 121 and the third controller 23 disconnects the connection between the second rotating part 114 and the third rotating part 126, the first planetary gear 131 revolves around the first sun gear 111 at a speed determined by the ratio of the number of teeth of the first sun gear 111 to the number of teeth of the first gear ring 121 because the first gear ring 121 is fixed. At this time, the second sun gear 113 drives the second planetary gear 123 to rotate freely around the second gear ring 122, and the output shaft 132 revolves with the first planetary gear 131 to output power at a first speed.

[0064] When the first controller 21 unlocks the first gear ring 121 and the third controller 23 rigidly connects the second rotating part 114 and the third rotating part 126, the power of the second rotating part 114 is transmitted to the third rotating part 126, thereby driving the first gear ring 121 to rotate synchronously at the same speed as the second rotating part 114. At this time, the first planetary gear 131 is simultaneously driven by the first sun gear 111 and driven by the first gear ring 121. Its revolution speed is determined by the speed of the first sun gear 111 and the speed of the first gear ring 121 (the speed of the second rotating part 114). The output shaft 132 outputs power at the third speed along with the first planetary gear 131.

[0065] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the second transmission component 12 also includes a second connecting portion 127, one end of which is connected to the first rotating portion 124, and the other end is connected to the third rotating portion 126. When the third rotating portion 126 rotates, power is transmitted sequentially through the second connecting portion 127, the first rotating portion 124, and the first connecting portion 125 to the first gear ring 121, thereby driving the first gear ring 121 to rotate.

[0066] In one embodiment, such as Figure 1 and Figure 2 As shown, the second rotating part 114 and the third rotating part 126 are both disposed inside the second housing 32. The outer surface of the second rotating part 114 is provided with a protrusion, and the inner surface of the second housing 32 is provided with a groove. The protrusion on the outer surface of the second rotating part 114 and the groove on the surface of the second housing are fitted together to form a fixed connection. The second rotating part 114 can rotate and drive the second housing 32 to rotate synchronously.

[0067] The clutch of the third controller 23 is sleeved on the outside of the third rotating part 126 and located between the third rotating part 126 and the second housing 32. In the locked state, the actuator of the third controller 23 presses the clutch to fix the third rotating part 126 and the second housing 32; in the unlocked state, the actuator releases the clutch to release the fixed connection between the third rotating part 126 and the second housing 32.

[0068] When assembling the transmission components, first install one end of the second transmission member 12, which has a first gear ring 121 and a first rotating part 124, into the first housing 31, and then install one end of the second transmission member 12, which has a third rotating part 126, into the second housing 32. Since the second transmission member 12 has through holes that sequentially pass through the third rotating part 126, the first connecting part 125, the first rotating part 124, and the second connecting part 127 along the axial direction, the end of the first transmission member 11, which has a first sun gear 111, can be inserted into the first housing 31 through these through holes until the second rotating part 114 of the first transmission member 11 abuts against the third transmission part 126 of the second transmission member 12, thus finally achieving the installation of the first transmission member 11 and the second transmission member 12 within the housing.

[0069] The first controller 21 is located at the end of the first housing 31 away from the second housing 32. The first controller includes a baffle 2021a, which is sleeved on the output shaft 132. The second controller 22 is located at the end of the first housing 31 facing the second housing 32, and the third controller 23 is located at the section of the second housing 32 facing the first housing 31. The pressure blocks of the second controller 22 and the third controller 23 are arranged opposite to each other. Therefore, only a baffle 2021b needs to be set between the pressure blocks of the second controller 22 and the third controller 23 to achieve control of the second controller 22 and the third controller 23.

[0070] In one embodiment, such as Figure 1 and Figure 2 As shown, the transmission mechanism also includes a motor 41 and an input shaft 42, which can be used to drive the first sun gear 111 to rotate.

[0071] A controller is sleeved on the outside of the input shaft 42, which serves as the fourth controller 24. In the locked state, the fourth controller 24 fixes the input shaft 42 to the first sun gear 111; in the unlocked state, the fourth controller 24 releases the fixation between the input shaft 42 and the first sun gear 111.

[0072] When the fourth controller 24 is in the locked state, the input shaft 42 is rigidly connected to the first sun gear 111. The motor 41 drives the input shaft 42 to rotate, and the power is directly transmitted to the first sun gear 111 through the input shaft 42, driving the output shaft 132 to rotate, realizing the electric control mode. When the fourth controller 24 is in the unlocked state, the connection between the input shaft 42 and the first sun gear 111 is released, and the motor 41 and the input shaft 42 no longer participate in power transmission. At this time, external forces (such as the thrust of the user manually opening and closing the electronic device) drive the first sun gear 111 to rotate, causing the transmission mechanism to switch to manual control mode.

[0073] Specifically, the end face of the second rotating part 114 away from the first sun gear 111 is recessed inward to form a recessed part 1141, the input shaft 42 extends into the recessed part 1141, and the input shaft 42 is coaxially arranged with the second rotating part 114.

[0074] The clutch plate of the fourth controller 24 is sleeved on the input shaft 42 and located between the input shaft 42 and the inner surface of the recess 1141. In the locked state, the actuator of the fourth controller 24 engages the clutch, fixing the input shaft 42 to the second rotating part 114 via the clutch. In the unlocked state, the clutch is released, thereby disengaging the fixed connection between the input shaft 42 and the second rotating part 114. At this time, the second rotating part 114 can be rotated manually by rotating the second housing 32, which in turn drives the first sun gear 111 to rotate via the second rotating part 114 and the transmission shaft 112.

[0075] like Figure 1 As shown, the fourth controller 24 is located at the end of the second housing 32 away from the first housing 31, and the baffle 2021c of the fourth controller 24 is sleeved on the outside of the input shaft 42.

[0076] In one embodiment, the transmission mechanism further includes a reducer 43, which connects the motor 41 to the input shaft 42. The reducer can convert the high-speed, low-torque output of the motor into low-speed, high-torque power, thereby improving the power adaptability of the transmission mechanism.

[0077] As described above, the output shaft speed can be adjusted and the manual / electric mode can be adjusted by controlling the controller.

[0078] When the first controller 21 is de-energized and the second controller 22 and the third controller 23 are energized, the first gear ring 121 is fixedly connected to the first housing 31, and the output shaft 132 has a first rotational speed.

[0079] When the second controller 21 is de-energized and the first controller 21 and the third controller 23 are energized, the second gear ring 122 is fixedly connected to the first housing 31, and the first gear ring 121 can rotate. At this time, the output shaft 132 has a second rotational speed.

[0080] When the third controller 23 is de-energized and the first controller 21 and the second controller 22 are energized, the third rotating part 126 is fixedly connected to the second housing 32. The third rotating part 126 and the second rotating part 114 rotate at the same speed, that is, the first sun gear 111 and the first gear ring 121 rotate at the same speed. At this time, the output shaft 132 has a third rotation speed.

[0081] When the fourth controller 24 is de-energized, the input shaft 42 is fixedly connected to the second rotating part 114, and the transmission mechanism is in electric mode; when the fourth controller 24 is energized, the input shaft 42 is disconnected from the second rotating part 114, and the transmission mechanism switches to manual mode.

[0082] This application also provides a hinge structure, such as... Figure 1 As shown, the hinge structure includes two sets of the aforementioned transmission mechanisms. The two sets of transmission mechanisms are arranged side by side, and each set of transmission mechanisms has a lever 50 at the output end of its output shaft 132. The hinge structure can adjust the rotational speed of the lever 50 by adjusting the rotational speed of the output shaft 132 of each set of transmission mechanisms.

[0083] exist Figure 1 In the embodiment shown, the baffles 2021a, 2021b and 2021c of the two sets of transmission mechanisms are connected as one unit to realize the parallel connection of the two sets of transmission mechanisms.

[0084] This application also provides an electronic device, which includes a first main body, a second main body, and the aforementioned hinge structure. One lever 50a of the hinge structure is connected to the first main body, and the other lever 50b is connected to the second main body. The lever 50a connected to the first main body can drive the first main body to rotate around the hinge structure, and the lever 50b connected to the second main body can drive the second main body to rotate around the hinge structure.

[0085] The first main body of the electronic device (such as the host or main screen) is rigidly connected to a set of levers 50a of the transmission mechanism in the hinge structure, and the second main body (such as the screen or secondary screen) is rigidly connected to another set of levers 50b of the transmission mechanism. The power transmission between the hinge structure and the main body is realized through the two sets of levers, which can present different rotation speeds according to the needs and adapt to different opening and closing angles and movement trajectories.

[0086] This application does not specifically limit the application to electronic devices, which can be any product or component with display function, such as laptops, tablets, wearable display devices, mobile phones, e-books, electronic price tags, digital photo frames, and advertising light boxes.

[0087] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A transmission mechanism, characterized by, The transmission mechanism includes a transmission component and a speed regulation component; the transmission component includes a first transmission element, a second transmission element, and an output element; the speed regulation component includes a controller. The first transmission component includes a first sun gear and a transmission shaft; the first sun gear is disposed at the end of the transmission shaft, and the transmission shaft is used to drive the first sun gear to rotate; The second transmission component includes a first gear ring, which surrounds the first sun gear and is coaxially arranged with the first sun gear; The output component includes a first planetary gear and an output shaft; the first planetary gear is located between the first sun gear and the first gear ring, and meshes with the first sun gear and the first gear ring respectively; the output shaft is coaxially arranged with the first sun gear; one end of the output shaft is connected to the first planetary gear, and the other end is the output end; The controller includes a locked state and an unlocked state; a controller is sleeved on the outside of the first toothed ring, and the controller sleeved on the outside of the first toothed ring is used as a first controller; the first controller is connected to the first toothed ring; in the locked state, the first controller fixes the first toothed ring; in the unlocked state, the first controller releases the first toothed ring.

2. The transmission mechanism of claim 1, wherein The first transmission component further includes a second sun gear located on the side of the first sun gear away from the output shaft; the second sun gear is coaxially arranged with the first sun gear and connected to the first sun gear through the transmission shaft; The second transmission component further includes a second gear ring and a second planetary gear. The second planetary gear is located between the second sun gear and the second gear ring, and meshes with the second sun gear and the second gear ring respectively. The second planetary gear can rotate around the second sun gear and drive the first gear ring to rotate. The controller is sleeved on the outside of the second toothed ring, and the controller sleeved on the outside of the second toothed ring serves as the second controller; the second controller is connected to the second toothed ring; in the locked state, the second controller fixes the second toothed ring; in the unlocked state, the second controller releases the second toothed ring.

3. The transmission mechanism of claim 2, wherein The transmission mechanism further includes a first housing, which is fixedly disposed; the first gear ring and the second gear ring are disposed inside the first housing; In the locked state, the first controller fixes the first gear ring to the first housing; in the unlocked state, the first controller releases the fixation between the first gear ring and the first housing. In the locked state, the second controller fixes the second gear ring to the first housing; in the unlocked state, the second controller releases the fixation between the second gear ring and the first housing.

4. The transmission mechanism of claim 2, wherein The second transmission component further includes a first rotating part, which is coaxially arranged with the first gear ring, and the side of the first rotating part facing the first gear ring is connected to the first gear ring through a first connecting part; The side of the first rotating part facing the first gear ring is also connected to the second planetary gear. The second planetary gear drives the first rotating part to rotate, and the first rotating part drives the first gear ring to rotate through the first connecting part.

5. The transmission mechanism of claim 1, wherein The first transmission component further includes a second rotating part; the second rotating part is coaxially arranged with the first sun gear and connected to the first sun gear through the transmission shaft; The second transmission component further includes a third rotating part, which is coaxially arranged with the first gear ring. The third rotating part is rotatable and drives the first gear ring to rotate. A controller is sleeved on the outer side of the third rotating part, and the controller sleeved on the outer side of the third rotating part is used as the third controller; in the locked state, the third controller fixes the second rotating part and the third rotating part together; in the unlocked state, the third controller releases the fixation between the second rotating part and the third rotating part.

6. The transmission mechanism of claim 5, wherein The transmission mechanism further includes a second housing, the second rotating part is disposed inside the second housing and is fixedly connected to the second housing, the second rotating part can rotate and drive the second housing to rotate synchronously; The third rotating part is disposed inside the second housing. In the locked state, the third controller fixes the third rotating part to the second housing; in the unlocked state, the third controller releases the fixation between the third rotating part and the second housing.

7. The transmission mechanism according to claim 1, characterized in that, The transmission mechanism also includes a motor and an input shaft, the input shaft being used to drive the first sun gear to rotate; The controller is sleeved on the outside of the input shaft, and the controller sleeved on the outside of the input shaft is used as the fourth controller. In the locked state, the fourth controller fixes the input shaft to the first sun gear; in the unlocked state, the fourth controller releases the fixed connection between the input shaft and the first sun gear.

8. The transmission mechanism according to claim 7, characterized in that, The first transmission component further includes a second rotating part; the second rotating part is coaxially arranged with the first sun gear and connected to the first sun gear through the transmission shaft; The end face of the second rotating part away from the first sun gear is recessed inward to form a recessed part, the input shaft extends into the recessed part, and the input shaft is coaxially arranged with the second rotating part; In the locked state, the fourth controller fixes the input shaft to the second rotating part; in the unlocked state, the fourth controller releases the fixed connection between the input shaft and the second rotating part.

9. The transmission mechanism according to claim 1, characterized in that, The controller includes a clutch and an actuator; the clutch includes multiple clutch plates; in the locked state, the actuator presses the multiple clutch plates together; in the unlocked state, the actuator releases the multiple clutch plates.

10. The transmission mechanism according to claim 9, characterized in that, The actuator includes a baffle, a pressure block, an elastic element, and a clamping part; the baffle is equipped with an electromagnet, and the pressure block is equipped with a permanent magnet; When the electromagnet of the baffle is not energized, the edge of the elastic element presses against the pressing part, and the pressing part presses against the plurality of clutch plates, so that the controller is in the locked state; When the electromagnet of the baffle is energized, the baffle applies a repulsive force to the pressure block, the pressure block presses against the center of the elastic member, causing the edge of the elastic member to move away from the pressing part, thus putting the controller in the unlocked state.

11. A hinge structure, characterized in that, The hinge structure includes two sets of transmission mechanisms as described in any one of claims 1 to 10; the two sets of transmission mechanisms are arranged side by side, and each set of transmission mechanisms has a lever at the output end of its output shaft. The hinge structure can adjust the rotational speed of the lever by adjusting the rotational speed of the output shaft of each set of transmission mechanisms.

12. An electronic device, characterized in that, The electronic device includes a first main body, a second main body, and a hinge structure as described in claim 11; one lever of the hinge structure is connected to the first main body, and the other lever is connected to the second main body. A lever connected to the first main body can drive the first main body to rotate around the hinge structure, and a lever connected to the second main body can drive the second main body to rotate around the hinge structure.

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