CN116857275A - Hinge mechanism and electronic device - Google Patents

Hinge mechanism and electronic device Download PDF

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Publication number
CN116857275A
CN116857275A CN202310878016.1A CN202310878016A CN116857275A CN 116857275 A CN116857275 A CN 116857275A CN 202310878016 A CN202310878016 A CN 202310878016A CN 116857275 A CN116857275 A CN 116857275A
Authority
CN
China
Prior art keywords
screw
assembly
swing arm
hinge mechanism
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310878016.1A
Other languages
Chinese (zh)
Inventor
刘毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN202310878016.1A priority Critical patent/CN116857275A/en
Publication of CN116857275A publication Critical patent/CN116857275A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F16C11/103—Arrangements for locking frictionally clamped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention provides a hinge mechanism and electronic equipment, wherein the hinge mechanism comprises a hinge bracket, a swing arm assembly, a rotating shaft assembly and a damping adjusting assembly, the swing arm assembly is rotationally connected with the hinge bracket through the rotating shaft assembly, and the damping adjusting assembly is arranged on the rotating shaft assembly; the damping adjusting assembly comprises a first transmission part, a positioning part, a screw rod and a first elastic part, wherein the first transmission part is connected with the swing arm assembly through a cam, the positioning part is arranged at one end of the rotating shaft assembly, the first elastic part is arranged between the positioning part and the first transmission part, the length of the first elastic part can be adjusted when the screw rod rotates, and when the length of the first elastic part changes, the rotation damping of the swing arm assembly changes.

Description

Hinge mechanism and electronic device
Technical Field
The invention belongs to the technical field of spindle hinges, and particularly relates to a hinge mechanism and electronic equipment.
Background
With rapid development of electronic technology, mobile terminal products such as mobile phones and the like are updated and iterated more frequently. The folding machine has two states of folding and unfolding, so that the display area of the folding machine can be correspondingly adjusted, different use requirements of users can be met, and the folding machine is popular with the users.
In the related art, two bodies of a folder are generally rotatably connected by a hinge mechanism so as to be switchable between a folded state and an unfolded state. The torque provided by the hinge mechanism can influence the opening and closing experience of the folding machine. However, current hinge mechanisms have only a fixed torque after production and assembly due to structural limitations and cannot be flexibly adjusted according to the user's needs or changes in environmental conditions.
Disclosure of Invention
The invention aims to provide a novel technical scheme of a hinge mechanism and electronic equipment, so as to solve the problem that the opening and closing torque of the hinge mechanism in the related art cannot be flexibly adjusted.
In order to solve the technical problems, the invention is realized as follows:
the embodiment of the invention provides a hinge mechanism which comprises a hinge bracket, a swing arm assembly, a rotating shaft assembly and a damping adjusting assembly, wherein the swing arm assembly is rotationally connected with the hinge bracket through the rotating shaft assembly, and the damping adjusting assembly is arranged on the rotating shaft assembly; the damping adjusting assembly comprises a first transmission part, a positioning part, a screw rod and a first elastic part, wherein the first transmission part is connected with the swing arm assembly through a cam, the positioning part is arranged at one end of the rotating shaft assembly, the first elastic part is arranged between the positioning part and the first transmission part, the length of the first elastic part can be adjusted when the screw rod rotates, and when the length of the first elastic part changes, the rotation damping of the swing arm assembly changes.
The embodiment of the invention also provides electronic equipment, which comprises a first main body, a second main body and the hinge mechanism, wherein the first main body and the second main body are rotationally connected through the hinge mechanism, so that the electronic equipment can be switched between a folded state and an unfolded state.
According to the invention, the damping adjusting assembly comprises the first transmission part, the positioning part, the screw rod and the first elastic part, the first transmission part is connected with the swing arm assembly through the cam, the positioning part is arranged at one end of the rotating shaft assembly, the first elastic part is arranged between the positioning part and the first transmission part, the length of the first elastic part can be adjusted when the screw rod rotates, and when the length of the first elastic part changes, the rotation damping of the swing arm assembly changes, so that the opening and closing torque of the electronic equipment in the folding or unfolding process can be adjusted, different opening and closing torque demands of users can be met, and the application range of the electronic equipment using the hinge mechanism is enlarged.
Additional aspects and advantages of the invention 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 invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of a hinge mechanism according to an embodiment of the present invention;
FIG. 2 is an exploded view of a hinge mechanism according to an embodiment of the present invention;
FIG. 3 is another schematic view of a hinge mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of another hinge mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic illustration of yet another hinge mechanism according to an embodiment of the present invention;
FIG. 6 is a partial schematic view of a hinge mechanism according to an embodiment of the present invention;
FIG. 7 is another partial schematic view of a hinge mechanism according to an embodiment of the present invention;
fig. 8 is a flow chart of torque adjustment for an electronic device according to an embodiment of the invention.
Reference numerals:
1. a hinge bracket; 2. a swing arm assembly; 21. a first gear; 3. a spindle assembly; 4. a damping adjustment assembly; 41. a first transmission member; 42. a positioning piece; 43. a screw; 44. a first elastic member; 45. a second transmission member; 46. a second elastic member; 5. a motor; 6. a second gear; 61. a first limiting member; 7. a second limiting piece; 8. and a third elastic member.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The features of the invention "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The hinge mechanism of the embodiment of the present invention is described below with reference to fig. 1 to 8.
According to some embodiments of the present invention, a hinge mechanism is provided that may be used in an electronic device, particularly a foldable electronic device. The electronic equipment comprises a first main body and a second main body, wherein a first screen is arranged on the first main body, a second screen is arranged on the second main body, and the first main body and the second main body are rotationally connected through the hinge mechanism, so that the electronic equipment can be switched between a folded state and an unfolded state, and the display area of the electronic equipment can be adjusted.
As shown in fig. 1 to 5, the hinge mechanism includes:
the device comprises a hinge bracket 1, a swing arm assembly 2, a rotating shaft assembly 3 and a damping adjusting assembly 4, wherein the swing arm assembly 2 is rotationally connected with the hinge bracket 1 through the rotating shaft assembly 3, and the damping adjusting assembly 4 is arranged on the rotating shaft assembly 3;
the damping adjusting assembly 4 comprises a first transmission member 41, a positioning member 42, a screw 43 and a first elastic member 44, wherein the first transmission member 41 is in cam connection with the swing arm assembly 2, the positioning member 42 is arranged at one end of the rotating shaft assembly 3, the first elastic member 44 is arranged between the positioning member 42 and the first transmission member 41, the length of the first elastic member 44 can be adjusted when the screw 43 rotates, and when the length of the first elastic member 44 changes, the rotation damping of the swing arm assembly 2 changes.
As shown in fig. 1, the hinge bracket 1 is used for connection with a frame body of an electronic device, for example, the hinge bracket 1 may be connected to a first body and a second body. The hinge bracket 1 is provided with a rotating shaft assembly 3, a swing arm assembly 2 and other structural members so that the electronic equipment can be switched between a folded state and an unfolded state under the drive of the hinge mechanism.
Specifically, as shown in fig. 1 and 2, the rotating shaft assembly 3 is rotatably connected to the hinge bracket 1, and the swing arm assembly 2 is rotatably connected to the hinge bracket 1 through the rotating shaft assembly 3, for example, the swing arm assembly 2 may be sleeved on the rotating shaft assembly 3, so that the swing arm assembly 2 is rotatably connected to the hinge bracket 1. And the swing arm assembly 2 is connected to the first body and/or the second body of the electronic device, so that the first body and the second body are also rotatably connected, and thus the electronic device can be switched between a folded state and an unfolded state, so that the display area of the electronic device can be adjusted.
The damping adjustment assembly 4 is disposed on the rotating shaft assembly 3, the damping adjustment assembly 4 is generally disposed at an end of the rotating shaft assembly 3, and the damping adjustment assembly 4 is used for providing friction force to the swing arm assembly 2, so that the electronic device can be folded and unfolded under a certain opening and closing torque.
As shown in fig. 1 to 5, the damping adjustment assembly 4 according to the embodiment of the present invention includes a first transmission member 41, a positioning member 42, a screw 43, and a first elastic member 44, and the rotation damping of the swing arm assembly 2 relative to the rotating shaft assembly 3 can be adjusted by using the cooperation between the first transmission member 41, the positioning member 42, the screw 43, and the first elastic member 44, so that the opening and closing torque in the folding or unfolding process of the electronic device can be adjusted.
Specifically, the first transmission member 41 is in cam connection with the swing arm assembly 2, so that transmission between the first transmission member 41 and the swing arm assembly 2 can be realized. For example, the side of the swing arm assembly 2 facing the first transmission member 41 has a first tooth, and the side of the first transmission member 41 facing the swing arm assembly 2 has a second tooth, and the first tooth is meshed with the second tooth. In the process of rotating the swing arm assembly 2, the swing arm assembly 2 can drive the first transmission piece 41 to axially move along the rotating shaft assembly 3 through meshing transmission between the first tooth and the second tooth so as to be far away from or close to the swing arm assembly 2. The first transmission member 41 may be a sliding cam, a sliding retainer ring, or the like.
As shown in fig. 1-5, the positioning member 42 is disposed at one end of the rotating shaft assembly 3, for example, the positioning member 42 may be disposed at an end of the rotating shaft assembly 3 away from the swing arm assembly 2, so that the positioning member 42 can form a positioning and a stop for other structures in the damping adjustment assembly 4, thereby improving the adjustment reliability of the damping adjustment assembly 4 and facilitating the assembly of other structures.
As shown in fig. 1 to 5, the first elastic member 44 is disposed between the positioning member 42 and the first transmission member 41, and when the screw 43 is rotated, the screw 43 can transmit force through the transmission member sleeved thereon, thereby compressing or stretching the first elastic member 44 and adjusting the length of the first elastic member 44. The screw 43 may be connected to the second gear 6 on the hinge mechanism, and the rotation of the swing arm assembly 2 may drive the second gear 6 to rotate, thereby driving the screw 43 to rotate. The first elastic member 44 may be a spring sleeved on the rotating shaft assembly 3.
When the length of the first elastic piece 44 changes, the friction force between the first elastic piece 44 and the screw 43 (the transmission piece sleeved on the first elastic piece) changes, so that the friction force between the screw 43 and the first transmission piece 41 also changes, and the friction force between the first transmission piece 41 and the swing arm assembly 2 also changes, so that the rotation damping of the swing arm assembly 2 changes, the opening and closing torque in the folding or unfolding process of the electronic equipment can be adjusted, the opening and closing torque requirements of different users can be met, and the application range of the electronic equipment using the hinge mechanism is enlarged.
When the damping adjustment assembly 4 is in the first adjustment state, the swing arm assembly 2 can drive the screw 43 to rotate along the first direction, the screw 43 can transfer force through the transmission member sleeved on the screw 43 and compress the first elastic member 44, so that the length of the first elastic member 44 is reduced, the friction between the first elastic member 44 and the screw 43 (the transmission member sleeved on the screw) is increased, the friction between the screw 43 and the first transmission member 41 is also increased, and the friction between the first transmission member 41 and the swing arm assembly 2 is also increased, so that the rotation damping of the swing arm assembly 2 is increased, namely the opening and closing torque is increased.
When the damping adjustment assembly 4 is in the second adjustment state, the swing arm assembly 2 can drive the screw 43 to rotate along the second direction, the screw 43 can transfer force through the transmission member sleeved on the screw 43 and stretch the first elastic member 44, so that the length of the first elastic member 44 is increased, the friction between the first elastic member 44 and the screw 43 (the transmission member sleeved on the screw) is reduced, the friction between the screw 43 and the first transmission member 41 is also reduced, and the friction between the first transmission member 41 and the swing arm assembly 2 is also reduced, so that the rotation damping of the swing arm assembly 2 is reduced, namely the opening and closing torque is reduced.
Wherein the first rotation direction and the second rotation direction of the screw 43 are opposite rotation directions, and the first rotation direction and the second rotation direction of the screw 43 can be adjusted by the forward rotation and the reverse rotation of the swing arm assembly 2.
Optionally, the damping adjustment assembly 4 further includes a second transmission member 45, where the second transmission member 45 is disposed between the positioning member 42 and the first transmission member 41, the second transmission member 45 abuts against the first elastic member 44, the second transmission member 45 is sleeved on the screw 43, and when the screw 43 rotates, the second transmission member 45 moves along an axial direction of the screw 43 to adjust a length of the first elastic member 44.
As shown in fig. 1-5, the damping adjustment assembly 4 according to the embodiment of the present invention may further include a second transmission member 45, where the second transmission member 45 is disposed between the positioning member 42 and the first transmission member 41, and the second transmission member 45 is used to adjust the length of the first elastic member 44 when the screw 43 rotates.
Optionally, the second transmission member 45 is sleeved on the screw 43, and a region where the second transmission member is connected to the screw 43 is in threaded engagement, so that the second transmission member and the screw 43 form a threaded transmission, and the second transmission member 45 abuts against the first elastic member 44. When the screw 43 rotates, the second transmission member 45 can move in the axial direction of the screw 43 to compress or stretch the first elastic member 44, thereby adjusting the length of the first elastic member 44. The second transmission member 45 may be a sliding cam, a sliding retainer ring, or the like.
For example, when the damping adjustment assembly 4 is in the first adjustment state, the swing arm assembly 2 can drive the screw 43 to rotate along the first direction, so that the second transmission member 45 sleeved on the screw 43 can axially approach the first elastic member 44 and compress the first elastic member 44, the length of the first elastic member 44 is reduced, so that the friction between the first elastic member 44 and the second transmission member 45 is increased, the friction between the second transmission member 45 and the screw 43 is increased, the friction between the screw 43 and the first transmission member 41 is also increased, and the friction between the first transmission member 41 and the swing arm assembly 2 is also increased, so that the rotation damping of the swing arm assembly 2 is increased, that is, the opening and closing torque is increased.
When the damping adjustment assembly 4 is in the second adjustment state, the swing arm assembly 2 can drive the screw 43 to rotate along the second direction, so that the second transmission piece 45 sleeved on the screw 43 can be axially far away from the first elastic piece 44 and stretch the first elastic piece 44, the length of the first elastic piece 44 is increased, the friction between the first elastic piece 44 and the second transmission piece 45 is reduced, the friction between the second transmission piece 45 and the screw 43 is reduced, the friction between the screw 43 and the first transmission piece 41 is also reduced, and the friction between the first transmission piece 41 and the swing arm assembly 2 is also reduced, so that the rotation damping of the swing arm assembly 2 is reduced, namely the opening and closing torque is reduced.
Optionally, the first elastic member 44 is disposed between the positioning member 42 and the second transmission member 45.
Fig. 1-3 show a schematic view of a hinge mechanism according to the present invention.
As shown in fig. 1-3, in the embodiment of the present invention, the first elastic member 44 may be disposed between the positioning member 42 and the second transmission member 45, that is, the first elastic member 44 is sandwiched between the positioning member 42 and the second transmission member 45, so that the length of the first elastic member 44 can be adjusted by using the axial movement of the second transmission member 45, thereby adjusting the magnitude of the friction force between the first elastic member 44 and the second transmission member 45, so that the friction force between the second transmission member 45 and the screw 43, the friction force between the screw 43 and the first transmission member 41, and the friction force between the first transmission member 41 and the swing arm assembly 2 also change correspondingly, thereby adjusting the rotation damping of the swing arm assembly 2 to realize the adjustment of the opening and closing torque.
Optionally, the damping adjustment assembly 4 further includes a second elastic member 46, the rotating shaft assembly 3 includes a first shaft body and a second shaft body that are disposed side by side, the first elastic member 44 is sleeved on the first shaft body, the second elastic member 46 and the screw 43 are both sleeved on the second shaft body, and the second elastic member 46 is located between the screw 43 and the positioning member 42.
As shown in fig. 1-3, the rotating shaft assembly 3 according to the embodiment of the present invention may include a first shaft body and a second shaft body disposed side by side, and the first shaft body and the second shaft body are rotatably connected to the hinge bracket 1. The first elastic member 44 is sleeved on the first shaft body, and the second elastic member 46 and the screw 43 are sleeved on the second shaft body, that is, the first elastic member 44 and the second elastic member 46 are respectively located on different shaft bodies. The first elastic member 44 may be a spring sleeved on the first shaft body, and the second elastic member 46 may be a spring sleeved on the second shaft body.
The second transmission member 45 is sleeved on the first shaft body and the second shaft body, and abuts against the first elastic member 44. The second transmission member 45, which is screwed with the screw 43 when the screw 43 rotates, is axially movable and adjusts the length of the first elastic member 44 provided on the first shaft body.
The second elastic member 46 is sandwiched between the screw 43 and the positioning member 42, and a friction force exists between the second elastic member 46 and the screw 43. When the hinge mechanism is in a normal open-close state, that is, the damping adjustment assembly 4 is in a non-adjustment state, the screw 43 cannot rotate, and the first transmission member 41 is driven by the swing arm assembly 2 to axially move, and compress or stretch the screw 43. In this process, the second elastic member 46 interposed between the screw 43 and the positioning member 42 can also prevent the screw 43 from moving between the first transmission member 41 and the positioning member 42 when the elastic force of the first elastic member 44 is too small.
Optionally, the length of the first elastic member 44 is greater than the length of the second elastic member 46.
As shown in fig. 1 to 5, the length of the first elastic member 44 is greater than the length of the second elastic member 46, that is, the length of the elastic member located on the first shaft body is greater than the length of the elastic member located on the second shaft body, so that the second transmission member 45 can be abutted against the first elastic member 44, and further, the length of the first elastic member 44 can be adjusted by the axial movement of the second transmission member 45, so that the rotation damping of the swing arm assembly 2 is adjusted, and the adjustment of the opening and closing torque is realized.
The second elastic member 46 disposed on the second shaft body has a smaller length, so that the space occupation of the second elastic member 46 on the second shaft body can be reduced, the second shaft body is convenient to be provided with other structures such as the screw 43, and the functions of the hinge mechanism are expanded.
In addition, the rotating shaft assembly 3 may further include a first shaft body, a second shaft body, a third shaft body, and a fourth shaft body disposed side by side, wherein the first shaft body and the fourth shaft body are disposed at both sides, and the second shaft body and the third shaft body are disposed in the middle. First elastic pieces 44 are sleeved on the first shaft body and the fourth shaft body, second elastic pieces 46 are sleeved on the second shaft body and the third shaft body, and the second transmission piece 45 is propped against the first elastic pieces 44 on the first shaft body and the fourth shaft body, so that the lengths of the two first elastic pieces 44 can be synchronously adjusted by utilizing the axial movement of the second transmission piece 45, and the rotation damping of the swing arm assembly 2 is adjusted, so that the adjustment of opening and closing torque is realized.
Optionally, the first elastic member 44 is disposed between the first transmission member 41 and the second transmission member 45.
Fig. 4 shows a schematic view of another hinge mechanism according to the invention.
As shown in fig. 4, in the embodiment of the present invention, the first elastic member 44 is disposed between the first transmission member 41 and the second transmission member 45, that is, the first elastic member 44 is sandwiched between the first transmission member 41 and the second transmission member 45, so that the length of the first elastic member 44 can be adjusted by using the axial movement of the second transmission member 45, thereby adjusting the magnitude of the friction force between the first elastic member 44 and the first transmission member 41, so that the friction force between the first transmission member 41 and the swing arm assembly 2 is correspondingly changed, and the rotation damping of the swing arm assembly 2 can be adjusted, so as to realize the adjustment of the opening and closing torque.
Optionally, the damping adjustment assembly 4 further includes a second elastic member 46, the rotating shaft assembly 3 includes a first shaft body and a second shaft body that are disposed side by side, the first elastic member 44 is sleeved on the first shaft body, the second elastic member 46 and the screw 43 are both sleeved on the second shaft body, and the second elastic member 46 is located between the screw 43 and the first transmission member 41.
As shown in fig. 4, the rotating shaft assembly 3 according to the embodiment of the present invention may include a first shaft body and a second shaft body disposed side by side, and the first shaft body and the second shaft body are rotatably connected to the hinge bracket 1. The first elastic member 44 is sleeved on the first shaft body, and the second elastic member 46 and the screw 43 are sleeved on the second shaft body, that is, the first elastic member 44 and the second elastic member 46 are respectively located on different shaft bodies.
The second transmission member 45 is sleeved on the first shaft body and the second shaft body, and abuts against the first elastic member 44. The second transmission member 45, which is screwed with the screw 43 when the screw 43 rotates, is axially movable and adjusts the length of the first elastic member 44 provided on the first shaft body.
The second elastic member 46 is sandwiched between the screw 43 and the first transmission member 41, and friction exists between the second elastic member 46 and the screw 43, and between the second elastic member 46 and the first transmission member 41. When the hinge mechanism is in a normal open-close state, that is, the damping adjustment assembly 4 is in a non-adjustment state, the screw 43 cannot rotate, the first transmission member 41 is driven by the swing arm assembly 2 to axially move, and the first elastic member 44 and the second elastic member 46 are compressed or stretched. In this process, the second elastic member 46 interposed between the screw 43 and the first transmission member 41 can also prevent the screw 43 from moving between the first transmission member 41 and the positioning member 42 even when the elastic force of the first elastic member 44 is too small.
In addition, a spring retainer may be disposed between the screw 43 and the second elastic member 46, and the spring retainer can compress the second elastic member 46 and facilitate the arrangement of the screw 43. When the rotating shaft assembly 3 comprises two side-by-side second shaft bodies, the two second shaft bodies are provided with the second elastic pieces 46, and two spring baffle rings, which are close to one side of the screw 43, of the second elastic pieces 46 can be integrated into a whole, so that the assembly efficiency of the hinge mechanism can be improved.
Optionally, the hinge mechanism further includes a motor 5, where the motor 5 is connected to the second shaft body, and the motor 5 is used to drive the screw 43 to rotate.
Fig. 5 shows a schematic view of yet another hinge mechanism according to the present invention.
As shown in fig. 5, the hinge mechanism according to the embodiment of the present invention may further include a motor 5, and the movement of the screw 43 can be controlled by using the motor 5. Specifically, the motor 5 is connected to the second shaft body so that the motor 5 can drive the second shaft body and the screw 43 provided thereon to rotate. When the motor 5 rotates forward or reversely, the screw 43 can correspondingly rotate, so that the second transmission member 45 in threaded connection with the screw 43 can move along the axial direction of the screw 43 to compress or stretch the first elastic member 44 and adjust the length of the first elastic member 44, thereby adjusting the rotation damping of the swing arm assembly 2 to realize the adjustment of the opening and closing torque.
The forward rotation and the reverse rotation of the motor 5 can be controlled by a volume key of the electronic equipment, and convenience of opening and closing torque adjustment in the folding or unfolding process of the electronic equipment is improved.
Optionally, the swing arm assembly 2 has a first gear 21, the hinge mechanism further includes a second gear 6, the first gear 21 is in driving connection with the second gear 6, the second gear 6 is disposed opposite to the screw 43, and when the swing arm assembly 2 rotates relative to the hinge bracket 1, the first gear 21 drives the second gear 6 to rotate;
the opposite ends of the second gear 6 and the screw 43 are respectively provided with a first limiting member 61 and a second limiting member 7, and when the first limiting member 61 and the second limiting member 7 are fixedly connected, the second gear 6 can drive the screw 43 to rotate.
As shown in fig. 2-5, the swing arm assembly 2 of the embodiment of the present invention has a first gear 21, and the hinge mechanism further includes a second gear 6, where the second gear 6 is disposed opposite the screw 43, for example, the second gear 6 may be disposed coaxially with the screw 43. And the first gear 21 is in transmission connection with the second gear 6, for example, the first gear 21 and the second gear 6 can be in meshing transmission, so that when the swing arm assembly 2 rotates relative to the hinge bracket 1, the first gear 21 on the swing arm assembly 2 can drive the second gear 6 to rotate.
As shown in fig. 6 and 7, in the embodiment of the present invention, the opposite ends of the second gear 6 and the screw 43 are respectively provided with a first limiting member 61 and a second limiting member 7, that is, the end of the second gear 6 near the screw 43 is provided with the first limiting member 61, and the end of the screw 43 near the second gear 6 is provided with the second limiting member 7, so that the rotation of the screw 43 can be controlled by using the cooperation of the first limiting member 61 and the second limiting member 7.
For example, the second gear 6 is connected to the screw 43 when the first stopper 61 and the second stopper 7 are fixedly connected. When the swing arm assembly 2 rotates relative to the hinge bracket 1, the first gear 21 on the swing arm assembly 2 can drive the second gear 6 to rotate, and the second gear 6 can drive the screw 43 to rotate, so that the second transmission piece 45 in threaded connection with the screw 43 can move along the axial direction of the screw 43 to compress or stretch the first elastic piece 44, and adjust the length of the first elastic piece 44, thereby adjusting the rotation damping of the swing arm assembly 2, and realizing the adjustment of the opening and closing torque.
And when the first and second stoppers 61 and 7 are disengaged (i.e., disconnected), the second gear 6 and the screw 43 are also disengaged. When the swing arm assembly 2 rotates relative to the hinge bracket 1, the first gear 21 on the swing arm assembly 2 can drive the second gear 6 to rotate, the second gear 6 can not drive the screw 43 to rotate, and at the moment, the hinge mechanism is in a normal open-close state, and the rotation damping of the swing arm assembly 2 can not be adjusted.
Alternatively, the first limiting member 61 and the second limiting member 7 are magnetic members, and the first limiting member 61 is an electromagnetic member, and the first limiting member 61 and the second limiting member 7 are attracted under the condition that the first limiting member 61 is electrified, so as to limit the relative rotation of the second gear 6 and the screw 43.
As shown in fig. 6 and 7, in the embodiment of the present invention, the first limiting member 61 and the second limiting member 7 are both magnetic members, and the first limiting member 61 is an electromagnetic member, so that the connection between the second gear 6 and the screw 43 can be controlled by using the power on and power off of the first limiting member 61.
Specifically, in the case where the first stopper 61 is energized, the first stopper 61 and the second stopper 7 are magnetically connected to connect the second gear 6 and the screw 43. At this time, when the swing arm assembly 2 rotates relative to the hinge bracket 1, the first gear 21 on the swing arm assembly 2 can drive the second gear 6 to rotate, and the second gear 6 can drive the screw 43 to rotate, so that the second transmission member 45 in threaded connection with the screw 43 can move along the axial direction of the screw 43, so as to compress or stretch the first elastic member 44, and adjust the length of the first elastic member 44, thereby adjusting the rotation damping of the swing arm assembly 2, and realizing the adjustment of the opening and closing torque.
And in the case of the first stopper 61 being de-energized, the first stopper 61 and the second stopper 7 are disconnected from the magnetic attraction so that the second gear 6 and the screw 43 are also disconnected. At this time, when the swing arm assembly 2 rotates relative to the hinge bracket 1, the first gear 21 on the swing arm assembly 2 can drive the second gear 6 to rotate, and the second gear 6 cannot drive the screw 43 to rotate, so that the hinge mechanism is in a normal open-close state.
In addition, the first limiting piece 61 may be provided as a magnetic groove, the second limiting piece 7 is a magnetic protrusion, and under the condition that the first limiting piece 61 is electrified, the magnetic attraction between the first limiting piece 61 and the second limiting piece 7 can drive the second limiting piece 7 to move into the first limiting piece 61, so that the reliability of connection between the first limiting piece 61 and the second limiting piece 7 is improved, and the reliability of connection between the second gear 6 and the screw 43 is also improved. Wherein, the second limiting piece 7 can be a cross magnetic protrusion, and the first limiting piece 61 is a bar magnetic groove which can be matched with the cross magnetic protrusion, so as to further improve the reliability of connection between the first limiting piece 61 and the second limiting piece 7, and further improve the reliability of connection and transmission between the second gear 6 and the screw 43.
In another embodiment, the first limiting member 61 and the second limiting member 7 may be magnetic members, and the second limiting member 7 may be an electromagnetic member, so that the connection between the second gear 6 and the screw 43 can be controlled by using the power on and power off of the second limiting member 7. The second limiter 7 may be electrically connected to the second shaft body by a conductive wire, and the second limiter 7 may be electrically connected to the second shaft body by a conductive wire.
Optionally, the first limiting member 61 is a limiting groove, the second limiting member 7 is a protruding slider, and the protruding slider and the limiting groove are in a clamped fit, so as to control the connection between the second gear 6 and the screw 43.
For example, the second limiting member 7 may be a cross-shaped sliding block, one end of the cross-shaped sliding block is connected to the screw 43, the other end of the cross-shaped sliding block faces the first limiting member 61, and the first limiting member 61 may be a bar-shaped groove matched with the cross-shaped sliding block, so that the reliability of connection between the first limiting member 61 and the second limiting member 7 can be further improved, and the reliability of connection and transmission between the second gear 6 and the screw 43 is further improved.
Specifically, the hinge mechanism further includes a third elastic member 8, and the third elastic member 8 is connected between the second stopper 7 and an end portion of the screw 43. When the second limiting piece 7 and the first limiting piece 61 form clamping fit, the second gear 6 is connected with the screw 43, and the third elastic piece 8 is in a stretching state; when the second limiting piece 7 is disconnected from the first limiting piece 61, the second gear 6 is disconnected from the screw 43, and at the moment, the third elastic piece 8 is elastically reset and can drive the second limiting piece 7 to be separated from the first limiting piece 61. The third elastic member 8 may be a spring sleeved on the screw 43.
The formation and disconnection of the snap fit between the second limiting member 7 and the first limiting member 61 can be controlled by a mechanical structure design.
Alternatively, there are two swing arm assemblies 2, each swing arm assembly 2 is meshed with one second gear 6, and two second gears 6 are meshed.
As shown in fig. 1 to 5, the embodiment of the present invention provides two swing arm assemblies 2, one swing arm assembly 2 is connected to a first body of the electronic device, and the other swing arm assembly 2 is connected to a second body of the electronic device. Each swing arm assembly 2 is meshed with one second gear 6, and the two second gears 6 are meshed, so that synchronous rotation of the first main body and the second main body can be achieved through rotation of the two swing arm assemblies 2, and reliable switching of the electronic equipment between the folded state and the unfolded state is achieved.
There is further provided, in accordance with some embodiments of the present invention, an electronic device including a first body, a second body, and the hinge mechanism described above, where the first body and the second body are rotatably connected by the hinge mechanism, so that the electronic device can be switched between a folded state and an unfolded state.
As shown in fig. 8, the electronic device including the hinge mechanism can enter a torque fixing state or a torque adjusting state under the control of the damping adjusting component 4, wherein the torque fixing state is a normal open-close state, and in the torque adjusting state, the length of the first elastic member 44 can be adjusted by rotating the screw 43 in the hinge mechanism, so that the open-close torque in the folding or unfolding process of the electronic device can be adjusted, and the functions of the electronic device are expanded.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A hinge mechanism, comprising:
the damping device comprises a hinge bracket, a swing arm assembly, a rotating shaft assembly and a damping adjusting assembly, wherein the swing arm assembly is rotationally connected with the hinge bracket through the rotating shaft assembly, and the damping adjusting assembly is arranged on the rotating shaft assembly;
the damping adjusting assembly comprises a first transmission part, a positioning part, a screw rod and a first elastic part, wherein the first transmission part is connected with the swing arm assembly through a cam, the positioning part is arranged at one end of the rotating shaft assembly, the first elastic part is arranged between the positioning part and the first transmission part, the length of the first elastic part can be adjusted when the screw rod rotates, and when the length of the first elastic part changes, the rotation damping of the swing arm assembly changes.
2. The hinge mechanism of claim 1, wherein the damping adjustment assembly further comprises a second transmission member disposed between the positioning member and the first transmission member, the second transmission member being in contact with the first elastic member, the second transmission member being disposed around the screw, and the second transmission member being movable in an axial direction of the screw to adjust a length of the first elastic member when the screw is rotated.
3. The hinge mechanism of claim 2, wherein the first resilient member is disposed between the positioning member and the second transmission member.
4. A hinge mechanism according to claim 3, wherein the damping adjustment assembly further comprises a second elastic member, the shaft assembly comprises a first shaft body and a second shaft body arranged side by side, the first elastic member is sleeved on the first shaft body, the second elastic member and the screw are sleeved on the second shaft body, and the second elastic member is located between the screw and the positioning member.
5. The hinge mechanism of claim 4, wherein the length of the first resilient member is greater than the length of the second resilient member.
6. The hinge mechanism of claim 2, wherein the first resilient member is disposed between the first transmission member and the second transmission member.
7. The hinge mechanism of claim 6, wherein the damping adjustment assembly further comprises a second elastic member, the shaft assembly comprises a first shaft body and a second shaft body arranged side by side, the first elastic member is sleeved on the first shaft body, the second elastic member and the screw are sleeved on the second shaft body, and the second elastic member is positioned between the screw and the first transmission member.
8. The hinge mechanism of claim 4 or 7, further comprising a motor coupled to the second shaft, the motor configured to drive the screw in rotation.
9. The hinge mechanism according to any one of claims 1 to 7, wherein the swing arm assembly has a first gear, the hinge mechanism further comprises a second gear, the first gear is in driving connection with the second gear, the second gear is disposed opposite to the screw, and when the swing arm assembly rotates relative to the hinge bracket, the first gear drives the second gear to rotate;
the end parts of the second gear, which are opposite to the screw rod, are respectively provided with a first limiting part and a second limiting part, and the second gear can drive the screw rod to rotate when the first limiting part is fixedly connected with the second limiting part.
10. The hinge mechanism of claim 9, wherein the first and second stop members are magnetic members and the first stop member is an electromagnetic member that engages when the first stop member is energized to limit relative rotation of the second gear and the screw.
11. The hinge mechanism of claim 9, wherein there are two swing arm assemblies, each of the swing arm assemblies being engaged with one of the second gears, the two second gears being engaged.
12. An electronic device, comprising:
a first body;
a second body; and
a hinge mechanism as claimed in any one of claims 1 to 11;
the first main body and the second main body are rotatably connected through the hinge mechanism, so that the electronic equipment can be switched between a folded state and an unfolded state.
CN202310878016.1A 2023-07-17 2023-07-17 Hinge mechanism and electronic device Pending CN116857275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310878016.1A CN116857275A (en) 2023-07-17 2023-07-17 Hinge mechanism and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310878016.1A CN116857275A (en) 2023-07-17 2023-07-17 Hinge mechanism and electronic device

Publications (1)

Publication Number Publication Date
CN116857275A true CN116857275A (en) 2023-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310878016.1A Pending CN116857275A (en) 2023-07-17 2023-07-17 Hinge mechanism and electronic device

Country Status (1)

Country Link
CN (1) CN116857275A (en)

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