Locking assembly, rotating shaft mechanism and foldable electronic device
By using a locking component to connect the hinge in foldable electronic devices, the problem of hinge damage during drops is solved, the hinge is protected, and the mechanical reliability and service life of the device are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2022-10-31
- Publication Date
- 2026-07-21
AI Technical Summary
Foldable electronic devices are prone to damage to their hinges when dropped, leading to decreased mechanical reliability, especially since there is a lack of protection mechanisms when the electronic device is out of power or turned off.
A locking component is used to connect to the rotating shaft. Through the snap-fit mechanism of the first locking part and the second locking part, the rotating shaft is locked or unlocked when it reaches a preset speed, preventing the rotating shaft from folding or unfolding further and protecting the rotating shaft and the display screen.
It effectively reduces damage to the hinge during drops, improves the lifespan and mechanical reliability of foldable electronic devices, and ensures that the device can still be used normally after a drop.
Smart Images
Figure CN117948343B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of foldable devices, and more particularly to a locking component, a pivot mechanism, and a foldable electronic device. Background Technology
[0002] As users increasingly demand portability in electronic devices, foldable electronic devices have garnered significant attention. Examples include laptops and foldable phones. The mechanical reliability of foldable electronic devices has a substantial impact on their lifespan.
[0003] Figure 1a This is a schematic diagram of the structure of the foldable electronic device 001, where one end is just touching the ground. Figure 1b This is a structural diagram of the foldable electronic device 001 after landing. Figure 1a and Figure 1b As can be seen, after the foldable electronic device 001 lands, due to inertia, the hinge 002 rotates under the force of the ground, causing the foldable electronic device 001 to change from an unfolded state to a folded or semi-folded state. Subsequently, the hinge 002 is impacted by a secondary drop. The hinge 002 may be damaged or deformed, resulting in redundant screen 003 dimensions, or even black spots on the screen 003.
[0004] Reducing the damage to the hinge of foldable electronic devices after a drop is beneficial to improving the mechanical reliability of foldable electronic devices.
[0005] Currently, some foldable electronic devices control the movement of their hinges using accelerometers and solenoid valves. For example, the accelerometer determines whether the device is weightless; when the accelerometer detects weightlessness, the solenoid valve locks the hinge. However, when the electronic device is powered off or shut down, the accelerometer and solenoid valve cease operation, and this protection mechanism is lost. Summary of the Invention
[0006] This application provides a locking component, a pivot mechanism, and a foldable electronic device to improve the protection of the pivot from damage caused by a drop of the foldable electronic device.
[0007] To achieve the above objectives, this application adopts the following technical solution:
[0008] Firstly, a locking assembly is provided for connection to the pivot of a foldable electronic device. The assembly includes a rotating wheel, a first locking part, a locking disc, and a second locking part. The rotating wheel is connected to the pivot. The first locking part is connected to the outer peripheral wall of the rotating wheel. The locking disc is sleeved on the outside of the rotating wheel. The second locking part is connected to the inner peripheral wall of the locking disc. When the pivot reaches a preset rotational speed in the forward direction, the first locking part moves closer to the second locking part and engages with it. When the first locking part and the second locking part are engaged and the pivot rotates in the reverse direction, the first locking part and the second locking part separate. Therefore, when the foldable electronic device falls to the ground and tends to fold under the reaction force of the ground, the engagement of the first locking part and the second locking part prevents the pivot from continuing to rotate and prevents the foldable electronic device from folding further. This results in less damage to the pivot upon impact and reduced damage to the display screen, thus improving the lifespan of the foldable electronic device. When a foldable electronic device tends to unfold under the reaction force of the ground, the hinge rotates in the opposite direction due to inertia. The hinge is not locked, allowing the foldable electronic device to unfold to a larger angle, and resulting in less damage to the hinge upon a second impact. When the hinge is locked, rotating it in the opposite direction unlocks it. Therefore, the locking mechanism protects the hinge and display from damage after a fall.
[0009] In conjunction with the first aspect, in some feasible implementations, the rotating wheel includes: a disc and an elastic element, the disc being fixedly connected to the rotating shaft; one end of the first locking portion is rotatably connected to the disc, and the other end of the first locking portion is elastically connected to the disc via the elastic element. When the rotating shaft reaches a preset rotational speed in the forward direction, the first locking portion rotates relative to the disc, causing one end of the first locking portion to move closer to and engage with the second locking portion; when the first locking portion and the second locking portion are engaged and the rotating shaft rotates in the reverse direction, the elastic element separates the first locking portion from the second locking portion. Thus, the elastic element can move the first locking portion closer to or further away from the second locking portion, achieving separation and engagement of the first locking portion and the second locking portion.
[0010] In conjunction with the first aspect, in some feasible implementations, the rotating wheel further includes: a guide rod; an elastic element sleeved on the guide rod, the guide rod slidably connected to the first locking part, and one end of the guide rod connected to the wheel disk. When the rotating shaft reaches a preset rotational speed in the forward direction, the first locking part slides relative to the guide rod, causing one end of the first locking part to approach and engage with the second locking part; when the first locking part and the second locking part are engaged and the rotating shaft rotates in the reverse direction, the elastic element causes the first locking part to slide relative to the guide rod and disengage from the second locking part. Thus, the guide rod guides the first locking part, preventing the first locking part from deviating from its trajectory during movement and thus avoiding smooth engagement or disengagement with the second locking part.
[0011] In conjunction with the first aspect, in some feasible embodiments, the rotating wheel further includes: a guide rod and a limiting member, the limiting member being connected to the wheel disk; an elastic member being sleeved on the guide rod; the guide rod being slidably connected to the first locking part; the guide rod passing through the limiting member and being slidably connected to the limiting member; the opposite ends of the elastic member being elastically connected to the guide rod and the limiting member respectively; or, the opposite ends of the elastic member being elastically connected to the limiting member and the first locking part respectively. When the rotating shaft reaches a preset rotational speed in the forward direction, the first locking part and the guide rod slide together relative to the limiting member, causing one end of the first locking part to approach the second locking part and engage with the second locking part; when the first locking part and the second locking part are in an engaged state and the rotating shaft rotates in the reverse direction, the elastic member causes the first locking part and the guide rod to slide together relative to the limiting member and move away from the second locking part. Therefore, the limiting member can constrain the movement trajectory of the guide rod, so that the first locking part and the second locking part can be smoothly engaged or reset.
[0012] In conjunction with the first aspect, in some feasible implementations, the first locking part is fixedly connected to the rotating wheel; the rotating wheel is movably connected to the rotating shaft; when the rotating shaft reaches a preset speed in the forward direction, the axis of the rotating shaft deviates from the center of the rotating wheel, causing the first locking part to engage with the second locking part; when the first locking part and the second locking part are engaged and the rotating shaft rotates in the reverse direction, the axis of the rotating shaft coincides with the center of the rotating wheel, causing the first locking part to disengage from the second locking part. Thus, the rotating shaft is locked when its forward speed is too high, preventing the foldable electronic device from folding further, and minimizing damage to the rotating shaft after a fall.
[0013] In conjunction with the first aspect, in some feasible implementations, the rotating wheel includes a disc, a first limiting part, a second limiting part, and a positioning member. The disc is sleeved on the positioning member. The first and second limiting parts are spaced apart on the inner peripheral wall of the disc, and the first locking part is connected to the outer peripheral wall of the disc. The positioning member is used to connect with the rotating shaft, and the first or second limiting part abuts against the positioning member. When the first limiting part abuts against the positioning member, and the rotating shaft reaches a preset rotational speed in the forward direction, the axis of the rotating shaft deviates from the center of the rotating wheel. When the second limiting part abuts against the positioning member, and the rotating shaft rotates in the reverse direction, the axis of the rotating shaft coincides with the center of the rotating wheel. Thus, the interaction force between the first or second limiting part and the rotating shaft causes the rotating shaft and the disc to rotate synchronously. When this interaction force suddenly increases, the first and second locking parts engage and lock the rotating shaft.
[0014] In conjunction with the first aspect, in some feasible embodiments, the positioning element is an open-loop structure, with its opposite ends respectively used to abut against the first limiting portion or the second limiting portion. The open-loop structure can rotate synchronously with the rotating shaft, and is suitable for cylindrical rotating shafts, eliminating the need for additional machining of standard rotating shafts, thus offering wide applicability.
[0015] In conjunction with the first aspect, in some feasible embodiments, the rotating shaft includes a shaped section, the shaped section including a first abutting part and a second abutting part; the rotating wheel includes a disc, a first limiting part and a second limiting part, the first limiting part and the second limiting part being spaced apart on the inner peripheral wall of the disc, and the first locking part being connected to the outer peripheral wall of the disc;
[0016] The first abutting part abuts against the first limiting part of the rotating wheel, and the second abutting part abuts against the second limiting part of the rotating wheel. When the first limiting part abuts against the first abutting part, and the rotating shaft reaches a preset rotational speed in the forward direction, the axis of the rotating shaft deviates from the center of the rotating wheel. When the second limiting part abuts against the second abutting part, and the rotating shaft rotates in the reverse direction, the axis of the rotating shaft coincides with the center of the rotating wheel. Thus, the interaction between the first abutting part and the first limiting part can cause the irregular segment and the wheel to rotate synchronously or the irregular segment to be locked, thereby preventing the foldable electronic device from folding further.
[0017] Secondly, a pivot mechanism is provided, comprising: a pivot and any of the locking components provided in the second aspect, the pivot being connected to the rotating wheel. Clearly, this pivot mechanism has a self-locking function when the forward rotation speed is too high, which can prevent the foldable electronic device from folding further.
[0018] In conjunction with the second aspect, in some feasible implementations, the shaft mechanism further includes a drive shaft and a gear pair, the drive shaft being connected to the shaft via the gear pair. Thus, the torque of the shaft can be transmitted to the drive shaft via the gear pair, and the locking mechanism can simultaneously lock both the shaft and the drive shaft.
[0019] Thirdly, a foldable electronic device is provided, comprising: a first mid-frame, a second mid-frame, and any of the hinge mechanisms provided in the second aspect, wherein the first mid-frame and the second mid-frame are rotatably connected via the hinge mechanism. Thus, the foldable electronic device can be locked during rapid folding to prevent further folding, and the hinge mechanism self-locks upon impact with the ground, reducing damage to the hinge and display screen.
[0020] In conjunction with the third aspect, in some feasible methods, when the hinge rotates in the reverse direction, the angle between the plane containing the first middle frame and the plane containing the second middle frame increases, causing the foldable electronic device to unfold. Therefore, when the foldable electronic device is folded quickly, the hinge is locked to prevent further folding, reducing damage to the hinge. Attached Figure Description
[0021] Figure 1a This is a schematic diagram of a foldable electronic device where one end is just touching the ground.
[0022] Figure 1b This is a schematic diagram of a foldable electronic device that can be folded upon landing.
[0023] Figure 2a This is an exploded structural diagram of a foldable electronic device provided in an embodiment of this application.
[0024] Figure 2b This is a schematic diagram of the structure of a foldable electronic device provided in an embodiment of this application.
[0025] Figure 2c This is a schematic diagram of the structure of another foldable electronic device provided in an embodiment of this application.
[0026] Figure 3 This is a schematic diagram of the rotating shaft mechanism provided in an embodiment of this application.
[0027] Figure 4a This is a schematic diagram of a locking component provided in an embodiment of this application.
[0028] Figure 4b for Figure 4a A schematic diagram of the locking state of the locking component.
[0029] Figure 4c This is a schematic diagram of a foldable electronic device.
[0030] Figure 4d for Figure 4a A schematic diagram of the structure of the guide rod and the elastic element.
[0031] Figure 4e This is a schematic diagram of a connection between an elastic element and a wheel.
[0032] Figure 4f This is a schematic diagram of another connection between the elastic element and the wheel.
[0033] Figure 5a This is a schematic diagram of another locking component provided in an embodiment of this application.
[0034] Figure 5b for Figure 5a A schematic diagram of the locking component in the locked state.
[0035] Figure 5c This is a schematic diagram of the structure of a roulette wheel provided in an embodiment of this application.
[0036] Figure 5d This is a schematic diagram of a rotating shaft provided in an embodiment of this application.
[0037] Figure 6a This is a schematic diagram of another locking component provided in an embodiment of this application.
[0038] Figure 6b This is a schematic diagram of a positioning component and a rotating shaft.
[0039] Figure 6c for Figure 6a A schematic diagram of the locking state of the locking component.
[0040] In the diagram: 001-Foldable electronic device; 002-Hinge; 003-Screen; 01-Foldable electronic device; 11-Cover; 12-Display screen; 13-Middle frame assembly; 30-Hinge mechanism; 14-Back cover; 10-First middle frame; 20-Second middle frame; 100-Hinge; 101-Irregular section; 102-First abutment; 103-Second abutment; 104-Slide groove; 110-Drive shaft; 120-Gear pair; 130-Connecting rod; 200-Locking assembly; 210-Rotating wheel; 201-First limiting part; 202-Second limiting part; 211-Disc; 212-Elastic element; 213-Guide rod; 214-Limiting element; 215-Positioning element; 220-First locking part; 230-Locking disc; 240-Second locking part. Detailed Implementation
[0041] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.
[0042] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0043] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.
[0044] This application provides a foldable electronic device. This electronic device can be a foldable mobile phone, e-reader, remote control, laptop computer, personal digital assistant (PDA), in-vehicle device, smart TV, television set, etc. This application does not impose any special limitations on the form of the aforementioned foldable electronic device; the following description uses a foldable mobile phone as an example.
[0045] Figure 2a This is an exploded view of the foldable electronic device 01 provided in an embodiment of this application, as shown below. Figure 2a As shown, the foldable electronic device 01 includes a cover 11, a display screen 12, a mid-frame assembly 13, and a back cover 14. The back cover 14 and the display screen 12 are located on opposite sides of the mid-frame assembly 13, and the mid-frame assembly 13 and the display screen 12 are disposed inside the back cover 14. The cover 11 is disposed on the side of the display screen 12 away from the mid-frame assembly 13, and the display surface of the display screen 12 faces the cover 11.
[0046] The embodiments of this application do not limit the structure of the display screen 12, the cover 11 and the back shell 14, and can be set according to the purpose of the foldable electronic device 01.
[0047] Electronic components such as printed circuit boards (PCBs), batteries, and cameras in the foldable electronic device 01 can be mounted on the mid-frame assembly 13.
[0048] The middle frame assembly 13 includes a first middle frame 10, a second middle frame 20, and a pivot mechanism 30. The first middle frame 10 and the second middle frame 20 are rotatably connected by the pivot mechanism 30. Thus, the included angle between the first middle frame 10 and the second middle frame 20 can be increased or decreased under the action of the pivot mechanism 30.
[0049] The embodiments of this application do not limit the folding method of the foldable electronic device 01. For example, the foldable electronic device 01 can be folded inward or outward.
[0050] "Inward folding" means that when the foldable electronic device 01 is fully folded, the display screen 12 is located inside the foldable electronic device 01.
[0051] Outward folding refers to the fact that when the foldable electronic device 01 is fully folded, the display screen 12 is located on the outside of the foldable electronic device 01.
[0052] Figure 2b This is a schematic diagram of the structure of a foldable electronic device 01 provided in an embodiment of this application. Figure 2bIn the first rotation, the pivot mechanism 30 rotates in the forward direction A, reducing the angle between the first middle frame 10 and the second middle frame 20, causing the foldable electronic device 01 to fold. When the foldable electronic device 01 is fully folded, the display screen 12 is located inside the foldable electronic device 01, with both ends of the display screen 12 fitting together. When the pivot mechanism 30 rotates in the reverse direction B, the angle between the first middle frame 10 and the second middle frame 20 increases, causing the foldable electronic device 01 to unfold.
[0053] Figure 2c This is a schematic diagram of the structure of another foldable electronic device 01 provided in an embodiment of this application. Figure 2c In the first rotation, the pivot mechanism 30 rotates in the forward direction A, reducing the angle between the first middle frame 10 and the second middle frame 20, causing the foldable electronic device 01 to fold. When the foldable electronic device 01 is fully folded, the display screen 12 is located on the outside of the foldable electronic device 01, and the two ends of the back cover 14 are fitted together. When the pivot mechanism 30 rotates in the reverse direction B, the angle between the first middle frame 10 and the second middle frame 20 increases, causing the foldable electronic device 01 to unfold.
[0054] exist Figure 2b and Figure 2c In the example, forward A is clockwise and reverse B is counterclockwise. It is understood that in other embodiments of this application, forward A can be counterclockwise and reverse B can be clockwise, and this application does not impose any restrictions on this.
[0055] When the foldable electronic device 01 falls to the ground, the force exerted by the ground on it tends to move towards either a folded or unfolded state. When the foldable electronic device 01 tends to move towards a folded state, under inertia, the hinge mechanism 30 rotates in the positive direction A, reducing the angle between the first middle frame 10 and the second middle frame 20. This causes the hinge mechanism 30 to collide with the ground, potentially leading to damage or deformation of the hinge mechanism 30, which in turn can cause damage or deformation of the display screen 12, affecting its lifespan. The damage to the hinge mechanism 30 is greatest when the angle between the first middle frame 10 and the second middle frame 20 is relatively large.
[0056] The hinge mechanism 30 provided in this application embodiment prevents the foldable electronic device 01 from continuing to fold after it lands on one side, thereby mitigating the damage to the hinge mechanism 30 after the foldable electronic device 01 falls and reducing the impact of the fall on the display screen 12.
[0057] When the rotational speed along the positive direction A is large, the rotating shaft mechanism 30 provided in this application embodiment stops rotating, and the included angle between the first middle frame 10 and the second middle frame 20 no longer decreases.
[0058] Figure 3For a structural schematic diagram of the rotating shaft mechanism 30 provided in the embodiments of this application, please refer to [link / reference]. Figure 3 The rotating shaft mechanism 30 includes a rotating shaft 100 and a locking assembly 200. The rotating shaft 100 and the locking assembly 200 are connected. When the rotating shaft mechanism 30 rotates at a high speed along the positive direction A, the locking assembly 200 locks the rotating shaft 100, preventing it from rotating further. When the rotating shaft mechanism 30 rotates in the reverse direction B, the locking assembly 200 does not lock the rotating shaft 100. Since the foldable electronic device 01 unfolds after the rotating shaft mechanism 30 rotates in the reverse direction B, the damage to the rotating shaft 100 from a second impact with the unfolded electronic device 01 is minimal; therefore, it does not need to be locked.
[0059] Figure 3 In the process, the rotating shaft mechanism 30 also includes a drive shaft 110 and a gear pair 120, with the drive shaft 110 and the rotating shaft 100 connected by the gear pair 120.
[0060] Therefore, the locking component 200 connected to the rotating shaft 100 will transmit its effect on the rotating shaft 100 to the drive shaft 110 through the gear pair 120. The locking component 200 can simultaneously control the rotation of the rotating shaft 100 and the drive shaft 110.
[0061] exist Figure 3 In this embodiment, the rotating shaft 100 is the driven shaft. It is understood that in other embodiments, the rotating shaft 100 can be the driving shaft.
[0062] exist Figure 3 In the middle, the locking component 200 is connected to the rotating shaft 100. The locking component 200 and the rotating shaft 100 rotate in the same direction, and the locking component 200 and the rotating shaft 100 rotate in opposite directions.
[0063] It is understood that in other embodiments, the locking assembly 200 may be connected to the drive shaft 110. The direction of rotation of the shaft locked by the locking assembly 200 is selected based on the relationship between the angle change of the foldable electronic device 01 and the rotation direction of the drive shaft 110 or the pivot 100.
[0064] For example, when the locking component 200 is connected to the rotating shaft 100, the rotating shaft 100 rotates in the forward direction A, and the foldable electronic device 01 folds. After the rotating shaft 100 reaches a preset speed in the forward direction A, it can be locked by the locking component 200. When the foldable electronic device 01 folds, the drive shaft 110 rotates in the reverse direction B. If the locking component 200 is connected to the drive shaft 110, after the drive shaft 110 reaches a preset speed in the reverse direction B, the locking component 200 locks it.
[0065] exist Figure 3 In the process, the rotating shaft mechanism 30 also includes a connecting rod 130, and the drive shaft 110, locking assembly 200 and rotating shaft 100 are all rotatably connected to the connecting rod 130.
[0066] This application does not limit the number of locking components 200. For example, there can be multiple locking components 200, each connected to a different rotating shaft 100. The rotation of the locking rotating shaft 100 requires overcoming the torque of its rotation. Multiple locking components 200 can collectively overcome this torque, resulting in a smaller reaction force on each locking component 200, reduced strength requirements for each component, and decreased wear on the locking components 200.
[0067] Alternatively, the number of locking components 200 can be one, which can reduce the size of the rotating shaft mechanism 30.
[0068] Figure 4a This is a schematic diagram of the structure of a locking component 200 provided in an embodiment of this application. Figure 4a In the middle, the locking assembly 200 includes a rotating wheel 210, a first locking part 220, a locking disc 230, and a second locking part 240.
[0069] The rotating wheel 210 is connected to the rotating shaft 100, the first locking part 220 is connected to the outer peripheral wall of the rotating wheel 210, the locking disc 230 is sleeved on the outside of the rotating wheel 210, and the second locking part 240 is connected to the inner peripheral wall of the locking disc 230.
[0070] When the rotational speed of the shaft 100 along the positive direction A reaches the preset speed, the first locking part 220 moves close to the second locking part 240 and engages with the second locking part 240. When the first locking part 220 and the second locking part 240 are engaged and the shaft 100 rotates along the reverse direction B, the first locking part 220 and the second locking part 240 separate.
[0071] In this context, "positive direction A" refers to the foldable electronic device 01 folding after the pivot 100 rotates in that direction. "negative direction B" refers to the foldable electronic device 01 unfolding after the pivot 100 rotates in that direction.
[0072] For example, when the rotational speed of the shaft 100 along the positive direction A is less than the preset speed, the centrifugal force of the first locking part 220 is small, and the first locking part 220 and the second locking part 240 are in a separated state. As the rotational speed along the positive direction A increases, the centrifugal force of the first locking part 220 increases, causing the first locking part 220 to move closer to the second locking part 240 until the first locking part 220 and the second locking part 240 contact and engage, and the shaft 100 stops rotating under the action of the locking disc 230. When the shaft 100 rotates in the reverse direction B, the first locking part 220 and the second locking part 240 are in a separated state.
[0073] During normal use, when the shaft 100 rotates in the forward direction A, the first locking part 220 and the second locking part 240 are in a separated state, and the locking assembly 200 does not lock the shaft 100. When the foldable electronic device 01 falls to the ground and tends to fold under the reaction force of the ground, the rotational speed of the shaft 100 in the forward direction A increases to a preset speed under the action of inertia. The centrifugal force of the first locking part 220 connected to the rotating wheel 210 increases, causing the first locking part 220 to move closer to the second locking part 240 and engage with the second locking part 240, thus preventing the shaft 100 from continuing to rotate and preventing the foldable electronic device 01 from continuing to fold. When the shaft 100 hits the ground, the damage to the shaft 100 is relatively small, and the damage to the display screen 12 is reduced, which helps to improve the service life of the foldable electronic device 01.
[0074] When the foldable electronic device 01 tends to unfold under the reaction force of the ground, the rotating shaft 100 rotates to the preset speed along the opposite direction B under the action of inertia. The rotating shaft 100 is not locked, the foldable electronic device 01 unfolds at a larger angle, and the damage to the rotating shaft 100 is less after the rotating shaft 100 touches the ground a second time.
[0075] The embodiments of this application do not limit the magnitude of the preset rotation speed, which can be set according to requirements.
[0076] This application embodiment does not limit the number of the first locking part 220 and the second locking part 240. In some embodiments, there are multiple second locking parts 240, which are distributed at intervals along the inner peripheral wall of the locking disc 230. Thus, the first locking part 220 can engage with any one of the second locking parts 240 to restrain the rotation of the rotating shaft 100. When the rotating shaft 100 reaches a preset rotational speed in the positive direction, it can be locked quickly, reducing the locking time and increasing the response speed of the locking assembly 200.
[0077] The embodiments of this application do not limit the shape of the first locking part 220 and the second locking part 240. For example, the first locking part 220 and the second locking part 240 can be a tooth structure that can mesh with each other. When the first locking part 220 and the second locking part 240 are in a snap-fit state, a force along the positive direction A cannot separate them, while a force along the negative direction B can separate the first locking part 220 and the second locking part 240.
[0078] The shape of the locking disc 230 is not limited in this application embodiment. For example, the locking disc 230 can be a circular ring structure. Alternatively, the outer periphery of the locking disc 230 can be other irregular shapes.
[0079] Please refer to it again. Figure 3 This application does not limit the connection method between the locking disc 230 and the connecting rod 130. For example, the locking disc 230 and the connecting rod 130 can be fixedly connected, welded, or snap-fitted.
[0080] The shape of the rotating wheel 210 is not limited in this embodiment. For example, the rotating wheel 210 can be a circular ring structure, or, in order to reduce the mass of the rotating wheel 210, the rotating wheel 210 can be an irregular shape, as long as the rotating wheel 210 does not contact the second locking part 240 during normal rotation of the rotating shaft 100.
[0081] In the embodiments of this application, there are various ways to achieve the movement of the first locking part 220 close to the second locking part 240 and engage with the second locking part 240, as well as the separation of the first locking part 220 from the second locking part 240, and the embodiments of this application do not limit this.
[0082] For example, in some embodiments, the first locking part 220 is fixedly connected to the rotating wheel 210. When the rotational speed of the rotating shaft 100 along the positive direction A reaches a preset speed, the first locking part 220 and the rotating wheel 210 move away from the center of the rotating shaft 100, causing the first locking part 220 to move closer to the second locking part 240 and engage with the second locking part 240. Alternatively, in other embodiments, the first locking part 220 is movably connected to the rotating wheel 210. When the rotating shaft 100 rotates along the positive direction A, the first locking part 220 moves away from the rotating wheel 210 and closer to the second locking part 240 and engages with the second locking part 240.
[0083] The materials of the locking component 200 are not limited in this application embodiment. For example, in order to reduce the weight of the locking component 200 and at the same time increase the mechanical strength of the locking component 200 and reduce its wear, the material of the locking component 200 can be carbon fiber. It is understood that in other embodiments of this application, the locking component 200 can also be made of other materials.
[0084] The following describes various structures for the separation and engagement of the first locking part 220 and the second locking part 240 as examples.
[0085] Example 1
[0086] like Figure 4a As shown, the rotating wheel 210 includes a disc 211 and an elastic element 212. The disc 211 is used to be fixedly connected to the rotating shaft 100. One end of the first locking part 220 is rotatably connected to the disc 211, and the other end of the first locking part 220 is elastically connected to the disc 211 through the elastic element 212.
[0087] When the rotating shaft 100 reaches a preset rotational speed along the positive direction A, one end of the first locking part 220 rotates relative to the wheel 211, and the end of the first locking part 220 away from the wheel 211 moves closer to the second locking part 240 and engages with the second locking part 240. During this process, the elastic member 212 stores elastic potential energy that can cause the first locking part 220 to move away from the second locking part 240. When the first locking part 220 and the second locking part 240 are engaged and the rotating shaft 100 rotates along the negative direction B, the aforementioned elastic potential energy of the elastic member 212 causes the first locking part 220 to separate from the second locking part 240.
[0088] The aforementioned elastic connection includes the elastic element 212 being fixedly connected to the wheel 211, or the elastic element 212 being in contact with the wheel 211 but not connected, and the elastic element 212 being able to apply elastic force to the wheel 211.
[0089] The aforementioned elastic connection means that under the elastic force of the elastic member 212, the first locking part 220 can move closer to or further away from the wheel 211.
[0090] Figure 4a In this state, the first locking part 220 and the second locking part 240 are separated. In this state, the rotating shaft 100 will not be locked when rotating in the forward direction A or the reverse direction B, and the foldable electronic device 01 can be folded or unfolded.
[0091] Figure 4b for Figure 4a A schematic diagram of the locking component 200 in the locked state. Figure 4b In this state, the first locking part 220 and the second locking part 240 are in a separated state. In this state, the rotating shaft 100 is locked and cannot continue to rotate in the forward direction A, but can rotate in the reverse direction B.
[0092] Please see Figure 4b When the rotating shaft 100 rotates in the positive direction A, the wheel 211, the first locking part 220, and the elastic element 212 rotate synchronously. The first locking part 220 simultaneously bears the tension of the elastic element 212 and the centrifugal force exerted on it by the rotating shaft 100. When the rotational speed of the rotating shaft 100 in the positive direction A reaches the preset speed, the centrifugal force on the first locking part 220 increases. This centrifugal force is greater than the elastic force of the elastic element 212, causing the end of the first locking part 220 to move away from the wheel 211.
[0093] When the rotational speed of the shaft 100 along the positive direction A reaches the preset speed, the distance between the end of the first locking part 220 and the wheel 211 reaches the preset distance L1, so that the first locking part 220 and the second locking part 240 are engaged, the shaft 100 is locked, and the foldable electronic device 01 cannot continue to fold.
[0094] The aforementioned movement of the first locking part 220 toward the second locking part 240 means that the radius of movement of the first locking part 220 gradually increases, so that the distance between the movement trajectory of the first locking part 220 and the second locking part 240 is shortened until the first locking part 220 and the second locking part 240 are engaged.
[0095] The aforementioned preset rotational speed along the positive direction A can be set by detecting the rotational speed of the shaft 100 in free fall, thereby adjusting parameters such as the mass of the first locking part 220, the diameter of the wheel 211, and the elastic potential energy of the elastic element 212 so that the rotational speed of the shaft 100 along the positive direction A reaches the preset rotational speed and then the shaft 100 is locked.
[0096] Understandably, when the rotational speed of the hinge 100 along the positive direction A is less than the preset speed, the hinge 100 is not locked, and the foldable electronic device 01 can be folded normally. Therefore, when the user folds the foldable electronic device 01 normally, the probability of the hinge 100 being locked is small, and it does not affect normal use.
[0097] Figure 4b In the middle, the first locking part 220 and the second locking part 240 are engaged, and the elastic member 212 is stretched. When the locking assembly 200 is in the middle, Figure 4b In the indicated state, after the rotating shaft 100 rotates in the opposite direction B, the first locking part 220 separates from the second locking part 240. Under the elastic force of the elastic member 212, the first locking part 220 moves away from the second locking part 240, and the first locking part 220 returns to its original position. Figure 4a The state shown.
[0098] Therefore, the foldable electronic device 01 provided in this application embodiment will lock after rapid folding. After locking, the user unfolds the foldable electronic device 01 and rotates the pivot 100 in the opposite direction B, and the foldable electronic device 01 can be unlocked and continue to be used. This protects the pivot 100 from damage when the foldable electronic device 01 has a rapid folding tendency, and does not affect normal folding and unfolding.
[0099] When the locking component 200 is in Figure 4a In the state shown, the rotating shaft 100 can rotate either in the forward direction A or in the reverse direction B.
[0100] exist Figure 4a In this configuration, the engagement between the first locking part 220 and the second locking part 240 is directional. That is, the first locking part 220 can only engage with the second locking part 240 after rotating in the positive direction A, and the first locking part 220 will not engage with the second locking part 240 after rotating in the reverse direction B.
[0101] Figure 4c This is a schematic diagram of one state of the foldable electronic device 01, for example, when the foldable electronic device 01 is in... Figure 4cAfter falling in the posture shown, under the action of inertia, the pivot 100 rotates rapidly in the opposite direction B, the unfolding angle of the foldable electronic device 01 increases, and then it lands again. During the second landing, the pivot 100 is on the side of the foldable electronic device 01 away from the bottom surface. The pivot 100 does not directly contact the ground and is not easily damaged. Therefore, when the pivot 100 rotates rapidly in the opposite direction B, the locking component 200 does not need to lock it.
[0102] This application embodiment does not limit the shape of the wheel 211, in Figure 4a In this embodiment, the wheel 211 is roughly triangular; in other embodiments, the wheel 211 can be circular or other irregular shapes. As long as the movement trajectory of the wheel 211 does not coincide with the second locking part 240 during the rotation of the shaft 100, it is acceptable.
[0103] This application does not limit the connection method between the wheel 211 and the rotating shaft 100. For example, a non-circular hole is provided on the wheel 211, and the non-circular hole is engaged with the rotating shaft 100. Alternatively, the surface of the rotating shaft 100 is provided with meshing teeth, and the wheel 211 is connected to the meshing teeth, etc.
[0104] The embodiments of this application do not limit the structure of the elastic element 212. For example, the elastic element 212 can be a spring, an elastic rubber strip, or a rubber sleeve, etc.
[0105] The embodiments of this application do not limit the way the first locking part 220 is rotatably connected to the wheel 211. For example, the first locking part 220 is rotatably connected to the wheel 211 by a rotating pin, or the first locking part 220 is rotatably connected to the wheel 211 by a hinge.
[0106] Figure 4a In the locking assembly 200, a guide rod 213 is also included, and an elastic element 212 is sleeved on the guide rod 213. One end of the guide rod 213 is slidably connected to the first locking part 220, and the other end of the guide rod 213 is connected to the wheel 211. Thus, the guide rod 213 can constrain the compression or extension path of the elastic element 212. As the first locking part 220 moves closer to or away from the second locking part 240 under the action of the elastic element 212, the guide rod 213 guides the first locking part 220, preventing the first locking part 220 from deviating from its trajectory during movement and thus failing to smoothly engage or disengage from the second locking part 240.
[0107] When the rotating shaft 100 reaches a preset rotational speed along the forward direction A, the first locking part 220 rotates relative to the wheel 211, and the end of the first locking part 220 away from the wheel 211 slides relative to the guide rod 213. The first locking part 220 moves closer to the second locking part 240 and engages with the second locking part 240. Similarly, during this process, the elastic member 212 stores elastic potential energy that allows the first locking part 220 to move away from the second locking part 240. When the rotating shaft 100 rotates along the reverse direction B, the aforementioned elastic potential energy of the elastic member 212 causes the first locking part 220 to slide relative to the guide rod 213 and separate from the second locking part 240.
[0108] The connection between the guide rod 213 and the wheel 211 can be either a direct connection or an indirect connection.
[0109] Figure 4d for Figure 4a Please refer to the structural schematic diagrams of the guide rod 213 and the elastic element 212. Figure 4a and Figure 4d The locking assembly 200 also includes a limiting member 214. The limiting member 214 is connected to the wheel 211, and the guide rod 213 passes through the limiting member 214 and is slidably connected to the limiting member 214. The two opposite ends of the elastic member 212 are respectively connected to the guide rod 213 and the limiting member 214. Alternatively, the two opposite ends of the elastic member 212 are respectively connected to the limiting member 214 and the first locking part 220.
[0110] When the rotating shaft 100 reaches a preset speed along the forward direction A, the first locking part 220 rotates relative to the wheel 211. The end of the first locking part 220 away from the wheel 211 and the guide rod 213 slide relative to the limiting member 214. The first locking part 220 moves closer to the second locking part 240 and engages with the second locking part 240. Similarly, during this process, the elastic member 212 stores elastic potential energy that allows the first locking part 220 to move away from the second locking part 240. When the rotating shaft 100 rotates along the reverse direction B, the aforementioned elastic potential energy of the elastic member 212 causes the first locking part 220 and the guide rod 213 to slide relative to the limiting member 214, and the first locking part 220 separates from the second locking part 240.
[0111] Thus, the guide rod 213 moves synchronously with the first locking part 220. When the first locking part 220 moves closer to the second locking part 240, the guide rod 213 slides relative to the limiting member 214, and the elastic member 212 is stretched. The guide rod 213 and the first locking part 220 move away from the limiting member 214 together. When the first locking part 220 moves away from the second locking part 240, the elastic member 212 returns to its original position, and the guide rod 213 and the first locking part 220 move closer to the limiting member 214 together. The limiting member 214 can constrain the movement trajectory of the guide rod 213, so that the first locking part 220 and the second locking part 240 can smoothly engage or return to their original positions.
[0112] This application does not limit the connection method between the elastic element 212 and the guide rod 213. For example, a stop portion is provided at one end of the guide rod 213, and the two ends of the elastic element 212 are not directly connected to the guide rod 213. The stop portion can prevent the elastic element 212 from coming off the guide rod 213. Alternatively, one end of the elastic element 212 is directly connected to the guide rod 213, and the other end is a free end.
[0113] This application does not limit the sliding connection between the guide rod 213 and the first locking part 220. Please refer to [link / reference]. Figure 4a and Figure 4d A pin is provided at the end of the guide rod 213. The pin extends into the slide groove 104 located in the first locking part 220, and the pin is slidably connected to the slide groove 104.
[0114] exist Figure 4a In the middle, the slide groove 104 is a strip-shaped hole, and the extension direction of the slide groove 104 can be set according to the movement trajectory of the first locking part 220 approaching the second locking part 240.
[0115] In the embodiments of this application, the guide rod 213 and the limiting member 214 are not necessary. The connection between the elastic member 212 and the wheel 211 may not require the use of the guide rod 213 or the limiting member 214.
[0116] For example, Figure 4e This is a schematic diagram of one connection between the elastic element 212 and the wheel 211. Figure 4e In this configuration, the two opposite ends of the elastic element 212 are fixedly connected to the first locking part 220 and the wheel 211, respectively. Thus, under the combined action of the elastic element 212 and centrifugal force, the first locking part 220 can move closer to or further away from the second locking part 240, and... Figure 4e The intermediate connection method can reduce the weight and size of the locking assembly 200.
[0117] For example, Figure 4f This is another schematic diagram showing the connection between the elastic element 212 and the wheel 211. Figure 4f In this configuration, the elastic element 212 is connected to the wheel 211 via a guide rod 213. One end of the guide rod 213 is fixedly connected to the wheel 211, and the other end is slidably connected to the first locking part 220. This allows the first locking part 220 to move closer to or further away from the second locking part 240, and also helps to reduce the weight and size of the locking assembly 200.
[0118] Please refer to the following: Figure 4a and Figure 4f ,exist Figure 4a In this configuration, neither end of the guide rod 213 is directly connected to the wheel 211, and the entire guide rod 213 can move with the first locking part 220. Figure 4f In the middle, one end of the guide rod 213 is fixedly connected to the wheel 211, and the other end can be slidably connected to the first locking part 220.
[0119] In this embodiment, the shapes of the guide rod 213 and the limiting member 214 are not limited, and are set according to the movement trajectory of the first locking part 220.
[0120] Please refer to it again. Figure 4a The elastic element 212, guide rod 213, and limiting element 214 are all connected to the radial surface of the wheel 211. It is understood that in other embodiments, the elastic element 212, guide rod 213, and limiting element 214 may all be connected to the outer peripheral wall of the wheel 211.
[0121] It is understandable that the structure for realizing the first locking part 220 and the wheel 211 is not limited to... Figure 4a , Figure 4e as well as Figure 4f The example shown can be of other structures, and the embodiments of this application do not limit them.
[0122] Example 2
[0123] Figure 5a This is a schematic diagram of the structure of another locking component 200 provided in an embodiment of this application. Figure 5a In the example, the first locking part 220 is fixedly connected to the rotating wheel 210, which is movably connected to the rotating shaft 100. When the rotational speed of the rotating shaft 100 increases in the positive direction A, the axis of the rotating shaft 100 deviates from the center of the rotating wheel 210, causing the first locking part 220 to engage with the second locking part 240. When the rotating shaft 100 rotates in the reverse direction B, the axis of the rotating shaft 100 coincides with the center of the rotating wheel 210, causing the first locking part 220 to separate from the second locking part 240.
[0124] Figure 5a In the middle, the axis m of the rotating shaft 100 coincides with the center n of the rotating wheel 210, and the first locking part 220 and the second locking part 240 are in a separated state.
[0125] Figure 5b for Figure 5a A schematic diagram of the locking component 200 in the locked state. Figure 5b In the middle, the axis m of the rotating shaft 100 is offset from the center n of the rotating wheel 210, and the first locking part 220 and the second locking part 240 are engaged.
[0126] The shape of the roulette wheel 211 is not limited in this embodiment. It can be a regular structure, such as a circular ring or a triangular ring, or it can be an irregular structure.
[0127] The center n of the aforementioned rotating wheel 210 is the center of the trajectory of the rotating wheel 210.
[0128] The aforementioned coincidence of the axis m of the rotating shaft 100 with the center n of the rotating wheel 210 includes: the center n and the axis m being collinear, and the distance between the center n and the axis m being less than or equal to a preset distance L2, which is the distance between the center n and the axis m when the first locking part 220 and the second locking part 240 are engaged.
[0129] Figure 5b In the rotating wheel 210, there are a wheel 211, a first limiting part 201 and a second limiting part 202. The first limiting part 201 and the second limiting part 202 are distributed at intervals on the inner peripheral wall of the wheel 211. The wheel 211 is fixedly connected to the first locking part 220.
[0130] The rotating shaft 100 abuts against the first limiting part 201 or the second limiting part 202. In other words, the rotating shaft 100 does not abut against the first limiting part 201 and the second limiting part 202 at the same time.
[0131] When the rotating shaft 100 rotates in the positive direction A, the first limiting part 201 abuts against the rotating shaft 100, and the rotating shaft 100 transmits power to the wheel 211 and the first locking part 220 through the first limiting part 201. The axis m of the rotating shaft 100 coincides with the center n of the rotating wheel 210, and the first locking part 220, the rotating shaft 100, and the wheel 211 rotate synchronously. When the rotational speed of the rotating shaft 100 in the positive direction A suddenly increases, under the action of inertia, the wheel 211 and the first locking part 220 continue to move along the tangential direction of the rotating shaft 100, the first limiting part 201 separates from the rotating shaft 100, and the distance between the axis m of the rotating shaft 100 and the center n of the rotating wheel 210 increases.
[0132] If the rotational speed of the rotating shaft 100 along the positive direction A reaches the preset speed, the interaction force between the first limiting part 201 and the rotating shaft 100 is large, and the distance between the first limiting part 201 and the rotating shaft 100 increases until the distance between the axis m of the rotating shaft 100 and the center n of the rotating wheel 210 is L2, and the first locking part 220 and the second locking part 240 are engaged.
[0133] After the first limiting part 201 separates from the rotating shaft 100, the rotating shaft 100 and the wheel 211 will move relative to each other for a short period of time until the second limiting part 202 comes into contact with the rotating shaft 100. The second limiting part 202 exerts a force on the rotating shaft 100, thereby locking the rotating shaft 100.
[0134] like Figure 5bAs shown, when the first limiting part 201 separates from the rotating shaft 100, if the rotational speed of the rotating shaft 100 along the positive direction A is less than the preset speed, the inertia of the first limiting part 201 is insufficient to make the distance between the axis m of the rotating shaft 100 and the center n of the rotating wheel 210 L2. At this time, the first locking part 220 and the second locking part 240 are still in a separated state. After the rotating shaft 100 continues to rotate, the rotating shaft 100 will abut against the first limiting part 201 again, and the rotating shaft 100 and the wheel 211 will continue to move synchronously. Therefore, when the rotational speed of the rotating shaft 100 along the positive direction A does not reach the preset speed, the rotating shaft 100 will not be locked.
[0135] When the locking component 200 is in Figure 5b In the locked state shown, the rotating shaft 100 is rotated in the reverse direction B. The rotating shaft 100 acts on the wheel 211 through the second limiting part 202, causing the wheel 211 to rotate in the reverse direction B. The first locking part 220 and the second locking part 240 separate, and the locking assembly 200 is in the locked state. Figure 5a The state shown.
[0136] When the locking component 200 is in Figure 5a In the state shown, the rotating shaft 100 can rotate either in the forward direction A or in the reverse direction B.
[0137] The embodiments of this application do not limit the structure of the first locking part 220 and the second locking part 240.
[0138] For example, the first locking part 220 and the second locking part 240 are interlocking teeth, when the foldable electronic device 01 is in the position of... Figure 4c After falling in the posture shown, Figure 5a Under inertia, the first locking part 220 and the second locking part 240 of the locking assembly 200 shown engage, locking the rotating shaft 100. Similarly, rotating the rotating shaft 100 in the positive direction A can separate the first locking part 220 and the second locking part 240.
[0139] Alternatively, in some embodiments, the first locking part 220 and the second locking part 240 employ... Figure 4a The structure shown, when the foldable electronic device 01 is... Figure 4c After a fall in the indicated posture, if the pivot 100 rotates rapidly in the opposite direction B, the locking assembly 200 will not lock it. This application does not impose any limitations on this.
[0140] The embodiments of this application do not limit the structure of the wheel 211. The wheel 211 has an inner hole, and the first limiting part 201 and the second limiting part 202 are connected to the inner hole.
[0141] Figure 5c Please refer to the structural schematic diagram of a roulette wheel 211 provided in the embodiments of this application. Figure 5cThe outer contour of the wheel 211 is circular, and the inner hole is irregular in shape.
[0142] The embodiments of this application do not limit the outer contour of the wheel 211. For example, the outer contour can be circular, or, in order to reduce weight, the outer contour can be irregular.
[0143] The shape of the inner hole is not limited in this embodiment. For example, the inner hole can be a circular hole, a strip hole, or an irregularly shaped hole. The inner hole is adapted to the shape of the rotating shaft 100 so that the rotating shaft 100 can slide relative to the inner hole, and the angle of sliding of the rotating shaft 100 relative to the inner hole is less than 360°. In this way, the rotating shaft 100 can rotate synchronously with the wheel 211.
[0144] The embodiments of this application do not limit the shape of the first limiting part 201 and the second limiting part 202. For example, the first limiting part 201 and the second limiting part 202 are flanges, and the first limiting part 201 and the second limiting part 202 protrude from the wall of the inner hole.
[0145] The embodiments of this application do not limit the connection method between the wheel 211 and the first locking part 220. For example, the wheel 211 and the first locking part 220 are welded together, or the wheel 211 and the first locking part 220 are integrally formed.
[0146] As described above, the rotating shaft 100 abuts against the first limiting part 201 or the second limiting part 202. In the embodiments of this application, the manner in which the rotating shaft 100 abuts against the first limiting part 201 or the second limiting part 202 is not limited.
[0147] Figure 5d Please refer to the structural schematic diagram of a rotating shaft 100 provided in this application embodiment. Figure 5a and Figure 5d The rotating shaft 100 includes an irregular section 101, and the wheel 211 is fitted outside the irregular section 101.
[0148] Figure 5d In the middle, the irregular segment 101 is flat, and the two opposite sides of the flat segment are respectively used to abut against the first limiting part 201 or the second limiting part 202.
[0149] The irregular segment 101 includes a first abutting part 102 and a second abutting part 103. The first abutting part 102 is used to abut against the first limiting part 201, and the second limiting part 202 is used to abut against the second limiting part 202.
[0150] It is understood that the aforementioned irregular segment 101 can be formed by cutting the rotating shaft 100, or by forming a positioning part with the same outer contour as the irregular segment 101 on the rotating shaft 100. The choice can be made according to the size of the rotating shaft 100 and the size of the wheel 211.
[0151] exist Figure 5a In this embodiment, both the first limiting part 201 and the second limiting part 202 are arc-shaped protrusions. In other embodiments, they can be other shapes, and this application does not limit them.
[0152] In other embodiments of this application, the rotating shaft 100 may be cylindrical, and the axis m of the rotating shaft 100 may be offset from or coincide with the center n of the rotating wheel 210 through other means.
[0153] Figure 6a This is a schematic diagram of the structure of another locking component 200 provided in an embodiment of this application. Figure 6a In the middle, the rotating wheel 210 also includes a positioning element 215, and the remaining structures in the rotating wheel 210 are similar to those in the middle. Figure 5a The examples shown are the same, so they will not be repeated here.
[0154] The positioning member 215 is used to connect with the rotating shaft 100. The positioning member 215 and the rotating shaft 100 can rotate synchronously. The positioning member 215 can optionally abut against the first limiting part 201 or the second limiting part 202. For example, when the rotating shaft 100 rotates in the forward direction A, the positioning member 215 abuts against the first limiting part 201. When the rotating shaft 100 rotates in the reverse direction B, the limiting member 214 abuts against the second limiting part 202.
[0155] Therefore, the rotating shaft 100 can be cylindrical or other shapes, and no cutting is required for the rotating shaft 100. This locking assembly 200 is applicable to a wide variety of rotating shafts 100. It is understood that the rotating shaft 100 can also be other shapes.
[0156] This application does not limit the connection method between the positioning member 215 and the rotating shaft 100. For example, the positioning member 215 and the rotating shaft 100 can be snapped together, or the positioning member 215 and the rotating shaft 100 can be fixedly connected. Alternatively, in some embodiments, the positioning member 215 and the rotating shaft 100 are integrally formed.
[0157] The shape of the positioning element 215 is not limited in the embodiments of this application.
[0158] Understandable Figure 5a The irregular segment 101 can be regarded as the shape of the square positioning part 215 and the rotating shaft 100 integrally formed.
[0159] Figure 6b This is a schematic diagram of a structure of positioning component 215 and rotating shaft 100. Figure 6b In the middle, the positioning component 215 is an open-loop structure, which is sleeved on the outside of the rotating shaft 100 and snapped into the rotating shaft 100.
[0160] The aforementioned open-loop structure means that the beginning and end of the positioning element 215 are not connected along the circumference of the rotating shaft 100.
[0161] The two opposite ends of the open-loop structure are respectively used to abut against the first limiting part 201 or the second limiting part 202. For example, when the rotating shaft 100 rotates in the forward direction A, one end of the open-loop structure abuts against the first limiting part 201, and when the rotating shaft 100 rotates in the reverse direction B, the other end of the open-loop structure abuts against the second limiting part 202.
[0162] The embodiments of this application do not limit the arc length of the open-loop structure, which can be set according to requirements.
[0163] The positioning element 215 provided in this application embodiment is not limited to... Figure 6b The open-loop structure in the text can be other structures.
[0164] Figure 6c for Figure 6a Please refer to the structural diagram of the locking component 200 in the locked state. Figure 6c and Figure 6a When the locking component 200 is in Figure 6a In the state shown, the axis m of the rotating shaft 100 coincides with the center n of the rotating wheel 210, the first locking part 220 separates from the second locking part 240, and the rotating shaft 100 can rotate in the positive direction A or the direction B.
[0165] When the locking component 200 is in Figure 6c In the state shown, the axis m of the rotating shaft 100 is offset from the center n of the rotating wheel 210, and the distance between the axis m of the rotating shaft 100 and the center n of the rotating wheel 210 is L1. The first locking part 220 and the second locking part 240 are engaged, and the rotating shaft 100 cannot continue to rotate in the forward direction A. After the rotating shaft 100 rotates in the reverse direction B, the first locking part 220 and the second locking part 240 separate, specifically moving away from the center n. Figure 5a The locking component 200 shown will not be described in detail here.
[0166] Similarly, including Figure 6a After the foldable electronic device 01 of the locking assembly 200 shown falls, the locking assembly 200 can lock the pivot 100 so that it cannot continue to rotate in the forward direction A, protect the pivot 100, reduce damage to the pivot 100 and the display screen 12, and extend the service life of the foldable electronic device 01.
[0167] When the rotating shaft 100 rotates too fast in the forward direction, the locking component 200 provided in this application embodiment can activate a self-locking mechanism to prevent the rotating shaft 100 from continuing to rotate.
[0168] Obviously, when the foldable electronic device 01, including the aforementioned locking component 200, collides with the outside world with a large force (e.g., falls to the ground), and the posture at the time of the collision gives it the inertia to fold further, the locking component 200 activates the self-locking function to prevent the foldable electronic device 01 from continuing to fold. This can reduce the damage to the hinge 100 caused by the secondary collision, thereby improving the problem of damage to the display screen 12 caused by damage to the hinge 100 and extending the service life of the foldable electronic device 01.
[0169] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A locking component, characterized in that, The locking assembly is used for connection with the hinge of the foldable electronic device, and includes: A rotating wheel, which is used to connect to the rotating shaft; A first locking part is connected to the outer peripheral wall of the rotating wheel; Locking disc, the locking disc being sleeved around the rotating wheel; and The second locking part is connected to the inner peripheral wall of the locking disc; When the rotational speed of the shaft in the positive direction reaches the preset speed, the first locking part moves close to the second locking part and engages with the second locking part; When the first locking part and the second locking part are in a locked state and the rotating shaft rotates in the opposite direction, the first locking part and the second locking part separate.
2. The locking assembly according to claim 1, characterized in that, The rotating wheel includes a disc and an elastic element, the disc being fixedly connected to the rotating shaft; one end of the first locking part is rotatably connected to the disc, and the other end of the first locking part is elastically connected to the disc through the elastic element; When the rotating shaft reaches the preset speed in the positive direction, the first locking part rotates relative to the wheel, causing one end of the first locking part to move close to the second locking part and engage with the second locking part. When the first locking part and the second locking part are in a locked state and the rotating shaft rotates in the opposite direction, the elastic member causes the first locking part and the second locking part to separate.
3. The locking assembly according to claim 2, characterized in that, The rotating wheel further includes: a guide rod; the elastic element is sleeved on the guide rod, one end of the guide rod is slidably connected to the first locking part, and the other end of the guide rod is connected to the wheel disk; When the rotational speed of the shaft in the positive direction reaches the preset speed, the first locking part slides relative to the guide rod, causing one end of the first locking part to approach the second locking part and engage with the second locking part. When the first locking part and the second locking part are in a locked state and the rotating shaft rotates in the opposite direction, the elastic element causes the first locking part to slide relative to the guide rod and separate from the second locking part.
4. The locking assembly according to claim 2, characterized in that, The rotating wheel further includes: a guide rod and a limiting member, the limiting member being connected to the wheel disk, the elastic member being sleeved on the guide rod, and the guide rod being slidably connected to the first locking part; the guide rod passes through the limiting member and is slidably connected to the limiting member; The two opposite ends of the elastic element are elastically connected to the guide rod and the limiting element, respectively; or, the two opposite ends of the elastic element are elastically connected to the limiting element and the first locking part, respectively. When the rotational speed of the shaft in the positive direction reaches the preset speed, the first locking part and the guide rod slide together relative to the limiting member, so that one end of the first locking part approaches the second locking part and engages with the second locking part. When the first locking part and the second locking part are in a locked state and the rotating shaft rotates in the opposite direction, the elastic member causes the first locking part and the guide rod to slide relative to the limiting member and move away from the second locking part.
5. The locking assembly according to claim 1, characterized in that, The first locking part is fixedly connected to the rotating wheel; the rotating wheel is used to be movably connected to the rotating shaft; When the rotational speed of the shaft in the positive direction reaches the preset speed, the axis of the shaft deviates from the center of the rotating wheel, causing the first locking part to engage with the second locking part. When the first locking part and the second locking part are in a locked state and the rotating shaft rotates in the opposite direction, the axis of the rotating shaft coincides with the center of the rotating wheel, causing the first locking part and the second locking part to separate.
6. The locking assembly according to claim 5, characterized in that, The rotating wheel includes a wheel disk, a first limiting part, a second limiting part, and a positioning member. The wheel disk is sleeved on the positioning member. The first limiting part and the second limiting part are distributed at intervals on the inner peripheral wall of the wheel disk. The first locking part is connected to the outer peripheral wall of the wheel disk. The positioning member is used to connect with the rotating shaft, and the first limiting part or the second limiting part abuts against the positioning member; When the first limiting part abuts against the positioning member, and the rotational speed of the rotating shaft in the positive direction reaches the preset speed, the axis of the rotating shaft deviates from the center of the rotating wheel; When the second limiting part abuts against the positioning member and the rotating shaft rotates in the opposite direction, the axis of the rotating shaft coincides with the center of the rotating wheel.
7. The locking assembly according to claim 6, characterized in that, The positioning element is an open-loop structure, and the two opposite ends of the open-loop structure are respectively used to abut against the first limiting part or the second limiting part.
8. The locking assembly according to any one of claims 1-7, characterized in that, There are multiple second locking parts, which are distributed at intervals along the inner peripheral wall of the locking disc.
9. A rotating shaft mechanism, characterized in that, The rotating shaft mechanism includes: a rotating shaft and a locking component as described in any one of claims 1-8, wherein the rotating shaft is connected to the rotating wheel.
10. The rotating shaft mechanism according to claim 9, characterized in that, The rotating shaft mechanism further includes a drive shaft and a gear pair, wherein the drive shaft is connected to the rotating shaft via the gear pair.
11. A foldable electronic device, characterized in that, The foldable electronic device includes: a first middle frame, a second middle frame, and a pivot mechanism as described in claim 9 or 10, wherein the first middle frame and the second middle frame are rotatably connected via the pivot mechanism.
12. The foldable electronic device according to claim 11, characterized in that, When the pivot rotates in the opposite direction, the angle between the plane containing the first middle frame and the plane containing the second middle frame increases, causing the foldable electronic device to unfold.