CN115695609A - Hinge assembly and electronic device - Google Patents

Hinge assembly and electronic device Download PDF

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Publication number
CN115695609A
CN115695609A CN202211350836.5A CN202211350836A CN115695609A CN 115695609 A CN115695609 A CN 115695609A CN 202211350836 A CN202211350836 A CN 202211350836A CN 115695609 A CN115695609 A CN 115695609A
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CN
China
Prior art keywords
gear
overlapped
rotating direction
gap
switched
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Application number
CN202211350836.5A
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Chinese (zh)
Inventor
李进
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN202211350836.5A priority Critical patent/CN115695609A/en
Publication of CN115695609A publication Critical patent/CN115695609A/en
Priority to PCT/CN2023/126736 priority patent/WO2024093779A1/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Gear Transmission (AREA)

Abstract

The application discloses hinge subassembly and electronic equipment, above-mentioned hinge subassembly includes: the first gear set and the second gear set are correspondingly configured, the first gear is a driving wheel, the second gear is a driven wheel, the first gear and the adjacent gear are overlapped in the rotating direction of the first gear, a first gap is reserved between the third gear and the adjacent gear in the rotating direction of the first gear, the second gear is switched to the driving wheel from the driven wheel, the first gear is switched to the driven wheel from the driving wheel, a second gap is reserved between the second gear and the adjacent gear in the rotating direction of the second gear, and the fourth gear and the adjacent gear are overlapped in the rotating direction of the second gear, so that the problem that the first rotating shaft and the second rotating shaft are not synchronous in rotation is avoided.

Description

Hinge assembly and electronic device
Technical Field
The application belongs to the technical field of electronics, concretely relates to hinge subassembly and electronic equipment.
Background
As various advanced technologies are applied to electronic devices, the updating speed of the electronic devices is faster and faster, and the requirements of users for the electronic devices are higher and higher. Taking the flexible screen as an example, the foldable electronic device is developed rapidly, and thus the electronic device has a larger display area and better portability. However, during the use of the folding electronic device, problems such as torque abnormality, jamming, and positional deviation of the center frame are likely to occur.
Disclosure of Invention
The application aims at providing a hinge assembly and an electronic device, and the problems that a folding electronic device is abnormal in torque, unsmooth in clamping, staggered in a middle frame and the like easily in the using process can be solved.
In order to solve the technical problem, the present application is implemented as follows:
an embodiment of the present application provides a hinge assembly, including: the first rotating shaft, the second rotating shaft and the gear synchronizing mechanism;
the first rotating shaft and the second rotating shaft are connected through a gear synchronizing mechanism, and the gear synchronizing mechanism comprises a first gear set and a second gear set which are coaxially arranged;
the first gear set comprises a first gear and a second gear, the second gear set comprises a third gear and a fourth gear, the first gear and the third gear are coaxially arranged on the first rotating shaft, and the second gear and the fourth gear are coaxially arranged on the second rotating shaft;
when the first gear is a driving gear, the second gear is a driven gear, and the first gear and the adjacent gear are overlapped in the rotating direction of the first gear, a first gap is reserved between the third gear and the adjacent gear in the rotating direction of the first gear;
when the second gear is switched from the driven wheel to the driving wheel and the first gear is switched from the driving wheel to the driven wheel, a second gap is left between the second gear and the adjacent gear in the rotating direction of the second gear, and the fourth gear and the adjacent gear are overlapped in the rotating direction of the second gear.
In addition, an embodiment of the present application further provides an electronic device, including: the hinge assembly is described above.
In the embodiment of the application, compared with a single gear set, a first gear set and a second gear set are provided, and the gears of the first gear set and the second gear set are configured correspondingly, when the first gear is a driving gear, the second gear is a driven gear, and the first gear and the gear adjacent to the first gear are overlapped in the rotation direction of the first gear, a first gap is left between the third gear and the gear adjacent to the third gear in the rotation direction of the first gear, when the second gear is switched from the driven gear to the driving gear, and the first gear is switched from the driving gear to the driven gear, a second gap is left between the second gear and the gear adjacent to the second gear in the rotation direction of the second gear, and the fourth gear and the gear adjacent to the fourth gear are overlapped in the rotation direction of the second gear, that is, although the driving gear is switched to the driven gear, the gear included in one of the first gear set and the second gear set can be overlapped all the time in the rotation direction, thereby avoiding the problem that the rotation of the first rotating shaft and the second rotating shaft are not synchronized.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a hinge assembly according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a gear synchronizing mechanism according to an embodiment of the present application;
FIG. 3 is one of the schematic structural views of the gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 4 is a second schematic structural view of the gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 5 is a third schematic structural view of the gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 6 is a fourth schematic structural view of the gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 7 is a fifth structural schematic view of a gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 8 is a sixth schematic structural view of a gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 9 is a seventh schematic structural view of the gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 10 is an eighth schematic structural view of the gear synchronizing mechanism during deployment according to an embodiment of the present application;
FIG. 11 is one of the schematic structural diagrams of the gear synchronizing mechanism during closing according to an embodiment of the present application;
FIG. 12 is a second schematic structural view of the gear synchronizing mechanism during closing according to the embodiment of the present application;
FIG. 13 is a third schematic structural view of the gear synchronizing mechanism according to the embodiment of the present application during closing;
FIG. 14 is a fourth illustration of a gear synchronizing mechanism according to an embodiment of the present application in a closed configuration;
FIG. 15 is a fifth structural schematic view of a gear synchronizing mechanism in a closing process according to an embodiment of the present application;
FIG. 16 is a sixth schematic structural view of a gear synchronizing mechanism according to an embodiment of the present application during closure;
FIG. 17 is a seventh structural schematic diagram of a gear synchronizing mechanism in a closing process according to an embodiment of the present application;
fig. 18 is an eighth structural diagram of the gear synchronizing mechanism in a closing process according to the embodiment of the present application.
Reference numerals:
1. a first gear; 2. a second gear; 3. a third gear; 4. a fourth gear; 5. a fifth gear; 6. a sixth gear; 7. a seventh gear; 8. an eighth gear; 9. a first rotating shaft; 10. a second rotating shaft; 11. a first mounting shaft; 12. a second mounting shaft;
100. a first gap; 200. a second gap; 300. a third gap; 400. a fourth gap.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the present application, it is to be understood that the features of the terms "first", "second" may explicitly or implicitly include one or more of the features.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
In order to ensure the smooth movement of the gears, the non-meshing side of the gears is designed with a clearance (the clearance cannot be cancelled). When a user holds the left and right parts of the folding electronic equipment to be unfolded or closed, the speeds for rotating the left and right parts are different, so that the rotating speeds for driving the left and right gears are different, and when the rotating speed of the left gear is greater than that of the right gear, the left gear is a driving wheel, and the right gear is a driven wheel; when the rotating speed of the right gear is greater than that of the left gear, the right gear is a driving wheel, and the left gear is a driven wheel. Because the speed of the user for unfolding or closing the left and right parts of the folding electronic equipment is random, the situation that the speed of the left gear is higher than that of the right gear, the speed of the right gear is higher than that of the left gear (or the speed of the right gear is higher than that of the left gear is changed into the speed of the left gear is higher than that of the right gear) occurs, and the driving wheel is switched from the left gear to the right gear (or from the right gear to the left gear); in the process of switching the driving wheels, the gears need to rotate by a certain angle, and transmission can be started after the gear clearance is eliminated. In the process of eliminating the clearance, the left gear and the right gear are disconnected and cannot be synchronized, so that the rotation angles of the left side and the right side of the hinge are not synchronized, and the problems of abnormal torque, blockage, dislocation of the middle frame and the like are caused.
In order to solve the above-mentioned problems, as shown in fig. 1 to 18, a hinge assembly of an embodiment of the present application includes: a first shaft 9, a second shaft 10 and a gear synchronisation mechanism.
The first rotating shaft 9 and the second rotating shaft 10 are connected through a gear synchronization mechanism, and the gear synchronization mechanism comprises a first gear set and a second gear set which are coaxially arranged.
Specifically, a part of the first gear set is disposed on the first rotating shaft 9, another part of the first gear set is disposed on the second rotating shaft 10, and similarly, a part of the second gear set is disposed on the first rotating shaft 9, and another part of the second gear set is disposed on the second rotating shaft 10.
For example, the first gear set includes a first gear 1 and a second gear 2, the second gear set includes a third gear 3 and a fourth gear 4, the first gear 1 and the third gear 3 are coaxially disposed on a first rotating shaft 9, and the second gear 2 and the fourth gear 4 are coaxially disposed on a second rotating shaft 10.
When the first gear 1 is a driving gear, the second gear 2 is a driven gear, and the first gear 1 and the adjacent gear overlap each other in the rotation direction of the first gear 1, a first gap 100 is left between the third gear 3 and the adjacent gear in the rotation direction of the first gear 1.
That is, in the case where the first gear 1 and the second gear 2 overlap in the rotation direction of the first gear 1, a first gap 100 is left between the third gear 3 and the fourth gear 4 in the rotation direction of the first gear 1.
In the case where the second gear 2 is switched from the driven gear to the driving gear and the first gear 1 is switched from the driving gear to the driven gear, a second gap 200 is left between the second gear 2 and the gear adjacent thereto in the rotational direction of the second gear 2, and the fourth gear 4 and the gear adjacent thereto are overlapped in the rotational direction of the second gear 2.
In other words, the second gear 2 and the first gear 1 leave the second gap 200 therebetween in the rotational direction of the second gear 2, and the fourth gear 4 and the third gear 3 overlap in the rotational direction of the second gear 2.
In the embodiment of the present application, compared to a single gear set, a first gear set and a second gear set are provided, and the gears of the first gear set and the second gear set are configured accordingly, when the first gear 1 is a driving gear, the second gear 2 is a driven gear, and the first gear 1 and the gear adjacent to the first gear 1 are overlapped in the rotation direction of the first gear 1, a first gap 100 is left between the third gear 3 and the gear adjacent to the third gear in the rotation direction of the first gear 1, when the second gear 2 is switched from the driven gear to the driving gear, and the first gear 1 is switched from the driving gear to the driven gear, a second gap 200 is left between the second gear 2 and the gear adjacent to the second gear in the rotation direction of the second gear 2, and the fourth gear 4 and the gear adjacent to the driven gear are overlapped in the rotation direction of the second gear 2, that is, although the driving gear is switched to the driven gear, the gear included in one of the first gear set and the second gear set can always rotate in the rotation direction, thereby avoiding the problem that the first rotating shaft 9 and the second rotating shaft 10 are overlapped asynchronously.
In an alternative embodiment, in order to improve the smoothness of the transmission, the gear synchronizing mechanism further comprises a first transmission gear set and a second transmission gear set.
The first gear 1 and the second gear 2 are in transmission connection through a first transmission gear set, and the third gear 3 and the fourth gear 4 are in transmission connection through a second transmission gear set.
Under the condition that the first gear 1 is a driving wheel, the second gear 2 is a driven wheel, and the first gear 1 and the first transmission gear set are overlapped in the rotating direction of the first gear, a first gap 100 is left between the third gear 3 and the second transmission gear set in the rotating direction of the first gear 1.
Under the condition that the second gear 2 is switched to the driving wheel from the driven wheel and the first gear 1 is switched to the driven wheel from the driving wheel, a second gap is reserved between the second gear 2 and the first transmission gear set in the rotating direction of the second gear 2, and the fourth gear 4 and the second transmission gear set are in lap joint in the rotating direction of the second gear 2.
In the embodiment of the present application, the first transmission gear set may include a plurality of gears, the number of the gears is an even number, for example, the first transmission gear set includes two gears or four gears. The second transmission gear set may include a plurality of gears, the number of the gears being an even number, for example, the second transmission gear set includes two gears or four gears.
The number of gears included in the first transmission gear set is the same as that of the gears included in the second transmission gear set.
In an alternative embodiment, as shown in fig. 1 and 2, the first gear set further comprises a fifth gear 5 and a sixth gear 6, the first gear 1 is in mesh with the fifth gear 5, the fifth gear 5 is in mesh with the sixth gear 6, and the sixth gear 6 is in mesh with the second gear 2.
The second gear set also comprises a seventh gear 7 and an eighth gear 8, the third gear 3 is meshed with the seventh gear 7, the seventh gear 7 is meshed with the eighth gear 8, and the eighth gear 8 is meshed with the fourth gear 4.
It should be noted that the first gear 1 is meshed with the fifth gear 5, the fifth gear 5 is meshed with the sixth gear 6, and the sixth gear 6 is meshed with the second gear 2, so that the transmission smoothness of the first gear set can be improved, similarly, the third gear 3 is meshed with the seventh gear 7, the seventh gear 7 is meshed with the eighth gear 8, and the eighth gear 8 is meshed with the fourth gear 4, so that the transmission smoothness of the second gear set can be improved.
In an alternative embodiment, in the case where the first gear 1 is a driving gear, the second gear 2 is a driven gear, and the first gear 1 and the fifth gear 5 overlap in the rotation direction of the first gear 1, a first gap 100 is left between the third gear 3 and the seventh gear 7 in the rotation direction of the first gear 1.
In the case where the second gear 2 is switched from the driven gear to the driving gear and the first gear 1 is switched from the driving gear to the driven gear, a second gap 200 is left between the second gear 2 and the sixth gear 6 in the rotation direction of the second gear 2, and the fourth gear 4 and the eighth gear 8 overlap in the rotation direction of the second gear 2.
Specifically, when the first gear 1 is a driving gear, the second gear 2 is a driven gear, and the first gear 1 and the fifth gear 5 overlap each other in the rotation direction of the first gear 1, the fifth gear 5, the sixth gear 6, and the second gear 2 overlap each other, a first gap 100 is left between the third gear 3 and the seventh gear 7 in the rotation direction of the first gear 1, and the seventh gear 7, the eighth gear 8, and the fourth gear 4 overlap each other.
Under the condition that the second gear 2 is switched from the driven wheel to the driving wheel and the first gear 1 is switched from the driving wheel to the driven wheel, a second gap 200 is reserved between the second gear 2 and the sixth gear 6 in the rotating direction of the second gear 2, the first gear 1, the fifth gear 5 and the sixth gear 6 are mutually overlapped, the fourth gear 4 and the eighth gear 8 are mutually overlapped in the rotating direction of the second gear 2, and the third gear 3, the seventh gear 7 and the eighth gear 8 are mutually overlapped.
In an alternative embodiment, as shown in fig. 3 to 10, in the process of unfolding the hinge assembly, in the case that the first gear 1 is a driving gear and the second gear 2 is a driven gear, one side of the first gear 1 facing the rotation direction of the first gear 1 overlaps with the fifth gear 5, so that the first gear 1 and the fifth gear 5 overlap in the rotation direction of the first gear 1, and the fifth gear 5, the sixth gear 6 and the second gear 2 overlap with each other; a first gap 100 is left between the third gear 3 and the seventh gear 7 in the rotation direction of the first gear 1, and the seventh gear 7, the eighth gear 8 and the fourth gear 4 are mutually overlapped.
Under the condition that the second gear 2 is switched from a driven wheel to a driving wheel and the first gear 1 is switched from the driving wheel to the driven wheel, the first gear 1, the fifth gear 5 and the sixth gear 6 are mutually overlapped, and a second gap 200 is reserved between the second gear 2 and the sixth gear 6 in the rotating direction of the second gear 2; one side of the fourth gear 4 facing the rotation direction of the second gear 2 is overlapped with the eighth gear 8, so that the fourth gear 4 and the eighth gear 8 are overlapped in the rotation direction of the second gear 2, and the third gear 3, the seventh gear 7 and the eighth gear 8 are overlapped with each other.
Under the condition that the second gear 2 is a driving gear and the first gear 1 is a driven gear, one side of the second gear 2, which faces the rotating direction of the second gear 2, is lapped with the sixth gear 6, so that the second gear 2 and the sixth gear 6 are lapped in the rotating direction of the second gear 2, and the first gear 1, the fifth gear 5 and the sixth gear 6 are lapped with each other; the fourth gear 4 and the eighth gear 8 leave a third gap 300 in the rotational direction of the second gear 2, and the third gear 3, the seventh gear 7, and the eighth gear 8 overlap each other.
Under the condition that the second gear 2 is switched from the driving wheel to the driven wheel and the first gear 1 is switched from the driven wheel to the driving wheel, a fourth gap 400 is reserved between the first gear 1 and the fifth gear 5 in the rotating direction of the first gear 1, and the fifth gear 5, the sixth gear 6 and the second gear 2 are mutually overlapped; one side of the third gear 3 facing to the rotating direction of the first gear 1 is overlapped with the seventh gear 7, so that the third gear 3 is overlapped with the seventh gear 7 in the rotating direction of the first gear 1, and the seventh gear 7, the eighth gear 8 and the fourth gear 4 are overlapped with each other.
In an alternative embodiment, as shown in fig. 11 to 18, in the process of closing the hinge assembly, in the case that the first gear 1 is a driving gear and the second gear 2 is a driven gear, one side of the first gear 1 facing the rotation direction of the first gear 1 overlaps with the fifth gear 5, so that the first gear 1 and the fifth gear 5 overlap in the rotation direction of the first gear 1, and the fifth gear 5, the sixth gear 6 and the second gear 2 overlap with each other; a first gap 100 is left between the third gear 3 and the seventh gear 7 in the rotation direction of the first gear 1, and the seventh gear 7, the eighth gear 8 and the fourth gear 4 are mutually overlapped.
Under the condition that the second gear 2 is switched from the driven wheel to the driving wheel and the first gear 1 is switched from the driving wheel to the driven wheel, the first gear 1, the fifth gear 5 and the sixth gear 6 are mutually overlapped, and a second gap 200 is reserved between the second gear 2 and the sixth gear 6 in the rotating direction of the second gear 2; one side of the fourth gear 4 facing the rotation direction of the second gear 2 is overlapped with the eighth gear 8, so that the fourth gear 4 and the eighth gear 8 are overlapped in the rotation direction of the second gear 2, and the third gear 3, the seventh gear 7 and the eighth gear 8 are overlapped with each other.
Under the condition that the second gear 2 is a driving gear and the first gear 1 is a driven gear, one side of the second gear 2 facing the rotating direction of the second gear 2 is lapped with the sixth gear 6, so that the second gear 2 and the sixth gear 6 are lapped in the rotating direction of the second gear 2, and the first gear 1, the fifth gear 5 and the sixth gear 6 are lapped with each other; the fourth gear 4 and the eighth gear 8 leave a third gap 300 in the rotational direction of the second gear 2, and the third gear 3, the seventh gear 7, and the eighth gear 8 overlap each other.
Under the condition that the second gear 2 is switched from the driving wheel to the driven wheel and the first gear 1 is switched from the driven wheel to the driving wheel, a fourth gap 400 is left between the first gear 1 and the fifth gear 5 in the rotating direction of the first gear 1, and the fifth gear 5, the sixth gear 6 and the second gear 2 are mutually overlapped; one side of the third gear 3 facing the rotating direction of the first gear 1 is overlapped with the seventh gear 7, so that the third gear 3 and the seventh gear 7 are overlapped in the rotating direction of the first gear 1, and the seventh gear 7, the eighth gear 8 and the fourth gear 4 are overlapped with each other.
In an alternative embodiment, as shown in fig. 1 and 2, the first gear set is disposed adjacent to the second gear set with a fifth gap (not shown) therebetween.
It should be noted that the first gear 1 is disposed adjacent to the third gear 3, the fifth gear 5 is disposed adjacent to the seventh gear 7, the sixth gear 6 is disposed adjacent to the eighth gear 8, and the second gear 2 is disposed adjacent to the fourth gear 4.
The fifth gap exists between the first gear 1 and the third gear 3, which can prevent the first gear 1 and the third gear 3 from generating friction when rotating, the fifth gap exists between the fifth gear 5 and the seventh gear 7, which can prevent the fifth gear 5 and the seventh gear 7 from generating friction when rotating, the fifth gap exists between the sixth gear 6 and the eighth gear 8, which can prevent the sixth gear 6 and the eighth gear 8 from generating friction when rotating, and the fifth gap exists between the second gear 2 and the fourth gear 4, which can prevent the second gear 2 and the fourth gear 4 from generating friction when rotating.
In an alternative embodiment, the hinge assembly further includes a first mounting shaft 11 and a second mounting shaft 12, the fifth gear 5 and the seventh gear 7 are sleeved on the first mounting shaft 11, and the sixth gear 6 and the eighth gear 8 are sleeved on the second mounting shaft 12.
The fifth gear 5 and the seventh gear 7 are fixedly mounted on the first mounting shaft 11, and the sixth gear 6 and the eighth gear 8 are fixedly mounted on the second mounting shaft 12.
For example, the fifth gear 5 and the seventh gear 7 are fixedly attached to the first mounting shaft 11 by welding or bonding, and the sixth gear 6 and the eighth gear 8 are fixedly attached to the second mounting shaft 12 by welding or bonding.
In an alternative embodiment, the first gear 1 and the third gear 3 are both fixedly connected to the first rotating shaft 9, and the second gear 2 and the fourth gear 4 are both fixedly connected to the second rotating shaft 10.
For example, the first gear 1 and the third gear 3 are fixedly attached to the first rotating shaft 9 by welding or bonding, and the second gear 2 and the fourth gear 4 are fixedly attached to the second rotating shaft 10 by welding or bonding.
In addition, as shown in fig. 1, an embodiment of the present application further provides an electronic device, including: the hinge assembly is described above.
Specifically, the electronic device further includes a base, a first housing seat, a second housing seat, a first screen support plate, a second screen support plate, and a third screen support plate.
The first shell seat is rotatably arranged on the first screen supporting plate, the first shell seat and the first screen supporting plate are arranged on the first side of the base portion, the second shell seat is rotatably arranged on the second screen supporting plate, the second shell seat and the second screen supporting plate are arranged on the second side of the base portion, the first side and the second side are arranged in a back-to-back mode, and the third screen supporting plate is movably connected with the base portion in the self supporting direction.
In addition, the electronic equipment further comprises a swing arm assembly, wherein the swing arm assembly comprises a first swing arm, a second swing arm, a third swing arm and a fourth swing arm, the first swing arm and the third swing arm are arranged on the same side of the first shell seat, and the second swing arm and the fourth swing arm are arranged on the same side of the second shell seat; the first end of the first swing arm is rotatably connected with the base, the second end of the first swing arm is rotatably connected with the first shell seat, the first end of the third swing arm is rotatably connected with the base, the second end of the third swing arm is in sliding fit with the first shell seat, the second end of the third swing arm can relatively slide and is in rotating fit with the first screen supporting plate, and the rotating axis of the first end of the first swing arm and the rotating axis of the first end of the third swing arm are distributed at intervals; the first end of the second swing arm is rotatably connected with the base, the second end of the second swing arm is rotatably connected with the second shell seat, the first end of the fourth swing arm is rotatably connected with the base, the second end of the fourth swing arm is in sliding fit with the second shell seat, the second end of the fourth swing arm and the second screen support plate can slide relatively and are in rotating fit, and the rotating axis of the first end of the second swing arm and the rotating axis of the first end of the fourth swing arm are distributed at intervals.
The first rotating shaft 9 and the second rotating shaft 10 are rotatably mounted on the base, the third swing arm is in limit fit with the first rotating shaft 9 in the rotating direction of the first swing arm, the fourth swing arm is in limit fit with the second rotating shaft 10 in the rotating direction, the first rotating shaft 9 and the second rotating shaft 10 are connected through a gear synchronizing mechanism, and the first shell seat and the second shell seat rotate synchronously through the gear synchronizing mechanism.
Since the electronic device includes the hinge assembly as described above, and the specific structure of the hinge assembly refers to the above-mentioned embodiment, the electronic device shown in this embodiment includes all technical solutions of the above-mentioned embodiment, and therefore at least has all the beneficial effects obtained by all the technical solutions, and details are not repeated herein.
The electronic device disclosed in the embodiment of the application can be a mobile phone, a computer, an electronic book reader, a wearable device and the like, and the embodiment of the application does not limit the specific type of the electronic device.
In the description of the present specification, reference to the description of the term "alternative implementation" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A hinge assembly, comprising: the first rotating shaft, the second rotating shaft and the gear synchronizing mechanism;
the first rotating shaft and the second rotating shaft are connected through a gear synchronizing mechanism, and the gear synchronizing mechanism comprises a first gear set and a second gear set which are coaxially arranged;
the first gear set comprises a first gear and a second gear, the second gear set comprises a third gear and a fourth gear, the first gear and the third gear are coaxially arranged on the first rotating shaft, and the second gear and the fourth gear are coaxially arranged on the second rotating shaft;
under the condition that the first gear is a driving gear, the second gear is a driven gear, and the first gear and the adjacent gear are overlapped in the rotating direction of the first gear, a first gap is reserved between the third gear and the adjacent gear in the rotating direction of the first gear;
when the second gear is switched from the driven wheel to the driving wheel and the first gear is switched from the driving wheel to the driven wheel, a second gap is left between the second gear and the adjacent gear in the rotating direction of the second gear, and the fourth gear and the adjacent gear are overlapped in the rotating direction of the second gear.
2. The hinge assembly of claim 1, wherein the gear synchronization mechanism further comprises a first drive gear set and a second drive gear set;
the first gear and the second gear are in transmission connection through the first transmission gear set, and the third gear and the fourth gear are in transmission connection through the second transmission gear set;
when the first gear is a driving gear, the second gear is a driven gear, and the first gear and the first transmission gear set are overlapped in the rotating direction of the first gear, a first gap is reserved between the third gear and the second transmission gear set in the rotating direction of the first gear;
under the condition that the second gear is switched to the driving wheel from the driven wheel and the first gear is switched to the driven wheel from the driving wheel, a second gap is reserved between the second gear and the first transmission gear set in the rotating direction of the second gear, and the fourth gear is lapped with the second transmission gear set in the rotating direction of the second gear.
3. The hinge assembly of claim 1, wherein the first gear set further comprises a fifth gear and a sixth gear, the first gear and the fifth gear are in meshed connection, the fifth gear and the sixth gear are in meshed connection, and the sixth gear and the second gear are in meshed connection;
the second gear set further comprises a seventh gear and an eighth gear, the third gear is in meshed connection with the seventh gear, the seventh gear is in meshed connection with the eighth gear, and the eighth gear is in meshed connection with the fourth gear.
4. The hinge assembly of claim 3, wherein, in a case where the first gear is a driving gear, the second gear is a driven gear, and the first gear and the fifth gear overlap in a rotational direction of the first gear, a first gap is left between the third gear and the seventh gear in the rotational direction of the first gear;
under the condition that the second gear is switched from a driven wheel to a driving wheel and the first gear is switched from the driving wheel to the driven wheel, a second gap is reserved between the second gear and the sixth gear in the rotating direction of the second gear, and the fourth gear and the eighth gear are in lap joint in the rotating direction of the second gear.
5. The hinge assembly as claimed in claim 3, wherein the hinge assembly overlaps the fifth gear at a side thereof facing a rotational direction of the first gear such that the first gear and the fifth gear overlap in the rotational direction of the first gear and the fifth gear, the sixth gear and the second gear overlap each other in a process of being unfolded, and in a case where the first gear is a driving gear and the second gear is a driven gear; a first gap is reserved between the third gear and the seventh gear in the rotating direction of the first gear, and the seventh gear, the eighth gear and the fourth gear are mutually overlapped;
under the condition that the second gear is switched from a driven wheel to a driving wheel and the first gear is switched from the driving wheel to the driven wheel, the first gear, the fifth gear and the sixth gear are mutually overlapped, and a second gap is reserved between the second gear and the sixth gear in the rotating direction of the second gear; one side of the fourth gear, which faces the rotating direction of the second gear, is overlapped with the eighth gear, so that the fourth gear and the eighth gear are overlapped in the rotating direction of the second gear, and the third gear, the seventh gear and the eighth gear are overlapped with each other;
under the condition that the second gear is a driving gear and the first gear is a driven gear, one side of the second gear, which faces the rotation direction of the second gear, is overlapped with the sixth gear, so that the second gear and the sixth gear are overlapped in the rotation direction of the second gear, and the first gear, the fifth gear and the sixth gear are overlapped with each other; a third gap is reserved between the fourth gear and the eighth gear in the rotating direction of the second gear, and the third gear, the seventh gear and the eighth gear are mutually overlapped;
when the second gear is switched from a driving wheel to a driven wheel, and the first gear is switched from the driven wheel to the driving wheel, a fourth gap is left between the first gear and the fifth gear in the rotation direction of the first gear, and the fifth gear, the sixth gear and the second gear are mutually overlapped; one side of the third gear facing to the rotating direction of the first gear is overlapped with the seventh gear, so that the third gear is overlapped with the seventh gear in the rotating direction of the first gear, and the seventh gear, the eighth gear and the fourth gear are overlapped with each other.
6. The hinge assembly of claim 3, wherein the hinge assembly overlaps the fifth gear on a side of the first gear facing a rotational direction of the first gear such that the first gear and the fifth gear overlap in the rotational direction of the first gear and the fifth gear, the sixth gear, and the second gear overlap each other during closing and in a case where the first gear is a driving gear and the second gear is a driven gear; a first gap is reserved between the third gear and the seventh gear in the rotating direction of the first gear, and the seventh gear, the eighth gear and the fourth gear are mutually overlapped;
under the condition that the second gear is switched from a driven wheel to a driving wheel and the first gear is switched from the driving wheel to the driven wheel, the first gear, the fifth gear and the sixth gear are mutually overlapped, and a second gap is reserved between the second gear and the sixth gear in the rotating direction of the second gear; one side of the fourth gear, which faces the rotating direction of the second gear, is overlapped with the eighth gear, so that the fourth gear and the eighth gear are overlapped in the rotating direction of the second gear, and the third gear, the seventh gear and the eighth gear are overlapped with each other;
under the condition that the second gear is a driving gear and the first gear is a driven gear, one side of the second gear, which faces the rotation direction of the second gear, is overlapped with the sixth gear, so that the second gear and the sixth gear are overlapped in the rotation direction of the second gear, and the first gear, the fifth gear and the sixth gear are overlapped with each other; a third gap is reserved between the fourth gear and the eighth gear in the rotation direction of the second gear, and the third gear, the seventh gear and the eighth gear are mutually overlapped;
under the condition that the second gear is switched from a driving wheel to a driven wheel and the first gear is switched from the driven wheel to the driving wheel, a fourth gap is reserved between the first gear and the fifth gear in the rotating direction of the first gear, and the fifth gear, the sixth gear and the second gear are mutually overlapped; one side of the third gear facing to the rotating direction of the first gear is overlapped with the seventh gear, so that the third gear is overlapped with the seventh gear in the rotating direction of the first gear, and the seventh gear, the eighth gear and the fourth gear are overlapped with each other.
7. The hinge assembly of claim 1, wherein the first gear set is disposed proximate to the second gear set with a fifth gap remaining between the first gear set and the second gear set.
8. The hinge assembly of claim 3, further comprising a first mounting shaft and a second mounting shaft, wherein the fifth gear and the seventh gear are sleeved on the first mounting shaft, and wherein the sixth gear and the eighth gear are sleeved on the second mounting shaft.
9. The hinge assembly of claim 1, wherein the first gear and the third gear are each fixedly connected to the first shaft, and the second gear and the fourth gear are each fixedly connected to the second shaft.
10. An electronic device, comprising: a hinge assembly as claimed in any one of claims 1 to 9.
CN202211350836.5A 2022-10-31 2022-10-31 Hinge assembly and electronic device Pending CN115695609A (en)

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PCT/CN2023/126736 WO2024093779A1 (en) 2022-10-31 2023-10-26 Hinge assembly and electronic device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024093779A1 (en) * 2022-10-31 2024-05-10 维沃移动通信有限公司 Hinge assembly and electronic device

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TWM531996U (en) * 2016-02-05 2016-11-11 First Dome Corp Rotatable coupling device for flexible display screen
US9927845B1 (en) * 2016-11-04 2018-03-27 Lenovo (Singapore) Pte. Ltd. Hinge assembly
CN112696422B (en) * 2019-10-22 2022-04-22 华为终端有限公司 Rotating shaft mechanism of electronic equipment and electronic equipment
CN114810800A (en) * 2021-01-29 2022-07-29 三星电子株式会社 Hinge structure and electronic device including the same
CN115695609A (en) * 2022-10-31 2023-02-03 维沃移动通信有限公司 Hinge assembly and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024093779A1 (en) * 2022-10-31 2024-05-10 维沃移动通信有限公司 Hinge assembly and electronic device

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