WO2022143795A1 - 折叠机构及折叠式电子设备 - Google Patents

折叠机构及折叠式电子设备 Download PDF

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Publication number
WO2022143795A1
WO2022143795A1 PCT/CN2021/142603 CN2021142603W WO2022143795A1 WO 2022143795 A1 WO2022143795 A1 WO 2022143795A1 CN 2021142603 W CN2021142603 W CN 2021142603W WO 2022143795 A1 WO2022143795 A1 WO 2022143795A1
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WO
WIPO (PCT)
Prior art keywords
gear
rotating shaft
elastic
engaging
folding
Prior art date
Application number
PCT/CN2021/142603
Other languages
English (en)
French (fr)
Inventor
于水通
祁兴亮
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2023538997A priority Critical patent/JP2024505347A/ja
Priority to EP21914527.3A priority patent/EP4274200A4/en
Priority to KR1020237024925A priority patent/KR20230119011A/ko
Publication of WO2022143795A1 publication Critical patent/WO2022143795A1/zh
Priority to US18/326,324 priority patent/US20230304530A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • 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

Definitions

  • the present application relates to the technical field of communication devices, and in particular, to a folding mechanism and a folding electronic device.
  • Folding electronic devices often have folding problems during the folding process. For example, when a foldable electronic device is folded inwardly, because the bending radius at the hinge is small, it is easy to cause the flexible screen to be excessively squeezed and creased or broken. When a foldable electronic device is folded out, because the bending radius at the hinge is too large, it is easy to cause the flexible screen to be excessively pulled and deformed, and even cause the flexible screen to break. It can be seen that the current foldable electronic device has the problem that the flexible screen is easily damaged during the folding process, which eventually leads to a short service life of the flexible screen.
  • the invention discloses a folding mechanism to solve the problem that the flexible screen is easily damaged during the folding process of the folding electronic device, resulting in a short service life of the flexible screen.
  • the present invention adopts the following technical solutions:
  • an embodiment of the present application discloses a folding mechanism, which is applied to a foldable electronic device, and includes a first rotating shaft, a second rotating shaft, a first gear, a second gear, a first connecting portion, a second connecting portion, and a first Elastomeric connectors, where:
  • the first connecting portion is connected with the first rotating shaft
  • the second connecting portion is connected with the second rotating shaft
  • both the first rotating shaft and the second rotating shaft are rotatably connected with the first elastic connecting piece
  • the first gear is mounted on the first rotating shaft
  • the second gear is mounted on the second rotating shaft
  • the first gear has a first a distal edge and a first proximal edge
  • the second gear has a second distal edge and a second proximal edge
  • the first elastic link can be engaged with the first gear and the second gear
  • the folding mechanism has a first state and a second state in which the first distal edge is engaged with the second distal edge, and a second state in which the first distal edge is engaged with the second distal edge. In the second state, the first proximal edge is engaged with the second proximal edge.
  • an embodiment of the present application discloses a foldable electronic device, including a flexible screen, a first casing, a second casing, and the above-mentioned folding mechanism, wherein:
  • the first shell is connected with the first connecting part and can rotate with the first connecting part
  • the second shell is connected with the second connecting part and can be rotated with the second connecting part turn
  • the flexible screen includes a first area, a second area and a connecting area, the first area is connected with the second area through the connecting area, the first area is connected with the first casing, and the second region is connected to the second housing;
  • the first casing When the first casing is rotated relative to the second casing to a folded state of the electronic device, and the flexible screen is located between the first casing and the second casing,
  • the first distal edge is engaged with the second distal edge; when the first housing is rotated relative to the second housing to the folded state of the electronic device, and the first region and all When the second regions are located on opposite sides of the first housing and the second housing, respectively, the first proximal edge is engaged with the second proximal edge.
  • the folding mechanism and the folding electronic device disclosed in the embodiments of the present application improve the structure of the electronic device in the related art, by installing the first gear and the second gear on the first rotating shaft and the second rotating shaft respectively, and connecting the first gear and the second gear
  • a rotating shaft and a second rotating shaft are rotatably connected by the first elastic connecting piece, and under the tension and compression of the first elastic connecting piece, the axial distance between the first rotating shaft and the second rotating shaft changes, when the folding mechanism is in the first state
  • the first distal edge is engaged with the second distal edge, the center distance becomes larger, and the folding radius becomes larger, so as to ensure that the foldable electronic device can avoid creases and damages caused by excessive extrusion of the foldable electronic device.
  • Inward folding can be achieved; when the folding mechanism is in the second state, the first proximal end edge is engaged with the second proximal end edge, the axis distance becomes smaller, and the bending radius becomes smaller, thereby ensuring that the foldable electronic device can avoid being damaged.
  • the outer fold is achieved when excessive pulling or tearing occurs. It can be seen that the folding electronic device disclosed in the embodiment of the present application can solve the problem that the screen of the folding electronic device is easily damaged during the folding process by adjusting the axial distance between the first rotating shaft and the second rotating shaft, resulting in a longer service life of the flexible screen. short question.
  • FIG. 1 is a schematic structural diagram of a partial structure of an electronic device disclosed in an embodiment of the application when it is folded inward;
  • FIG. 2 and FIG. 3 are respectively schematic structural diagrams of different parts of the electronic device disclosed in the embodiments of the application;
  • FIG. 4 is a schematic structural diagram of a first engaging mechanism of an electronic device disclosed in an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of a second engaging mechanism of an electronic device disclosed in an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a second elastic connector of an electronic device disclosed in an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a first elastic mechanism or a second elastic mechanism of an electronic device disclosed in an embodiment of the present application.
  • FIG. 8 is a partial structural schematic diagram of an electronic device disclosed in an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a partial structure of an electronic device disclosed in an embodiment of the application when it is folded inward;
  • FIG. 10 is a schematic structural diagram of a part of the structure of the electronic device disclosed in the embodiment of the application when it is folded out;
  • FIG. 11 is a schematic structural diagram of a part of the structure of the electronic device disclosed in the embodiment of the application when it is folded out.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • an embodiment of the present application discloses a folding mechanism, which is applied to a foldable electronic device.
  • the disclosed folding mechanism includes a first rotating shaft 100 , a second rotating shaft 200 , a first gear 300 , and a second gear 400 , the first connecting part 500 , the second connecting part 600 and the first elastic connecting piece 700 .
  • the first elastic connecting member 700 is the installation base of the first rotating shaft 100 and the second rotating shaft 200. Both the first rotating shaft 100 and the second rotating shaft 200 are rotatably connected with the first elastic connecting member 700, and the first elastic connecting member 700 can be a rubber cylinder
  • the embodiment of the present application does not limit the specific type of the first elastic connector 700 .
  • Both the first rotating shaft 100 and the second rotating shaft 200 can rotate around their own axes. Specifically, the user can manually control the first rotating shaft 100 and the second rotating shaft 200 to rotate in the direction required by the user, thereby opening or folding. electronic equipment.
  • the first gear 300 is mounted on the first rotating shaft 100 , and the first gear 300 rotates following the rotation of the first rotating shaft 100 .
  • the second gear 400 is mounted on the second rotating shaft 200 , and the second gear 400 rotates following the rotation of the second rotating shaft 200 .
  • the first gear 300 and the first rotating shaft 100 may be an integral structural member
  • the second gear 400 and the second rotating shaft 200 may be an integral structural member.
  • the first gear 300 can be fixed on the first rotating shaft 100 by a key connection
  • the second gear 400 can be fixed on the second rotating shaft 200 by a key connection.
  • the embodiments of the present application do not limit the specific assembling manners between the first gear 300 and the first rotating shaft 100 and the second gear 400 and the second rotating shaft 200 .
  • the first gear 300 is meshed with the second gear 400 , so as to ensure that the first rotating shaft 100 and the second rotating shaft 200 rotate synchronously.
  • the first gear 300 has a first distal edge and a first proximal edge
  • the second gear 400 has a second distal edge and a second proximal edge.
  • the rotation center is the farthest
  • the first proximal edge is the closest to the rotation center of the first gear 300.
  • the second distal edge of the second gear 400 is the farthest from the rotation center of the second gear 400.
  • the two proximal edges are closest to the center of rotation of the second gear 400 .
  • the first connecting portion 500 is connected to the first rotating shaft 100
  • the second connecting portion 600 is connected to the second rotating shaft 200
  • the first connecting part 500 can rotate with the first rotating shaft 100
  • the second connecting part 600 can rotate with the second rotating shaft 200
  • the user can manually rotate the first connecting part 500 and the second connecting part 600, so as to realize the rotation of the first rotating shaft 100 and the second rotating shaft 200 relative to the first elastic connecting member 700, thereby realizing the first The meshing of the gear 300 and the second gear 400 rotates.
  • the folding mechanism has a first state and a second state.
  • the first state the first distal edge is engaged with the second distal edge, the center distance between the first rotating shaft 100 and the second rotating shaft 200 is increased, and the first elastic The connecting member 700 is stretched, and the bending radius becomes larger.
  • the foldable electronic device is finally in a folded state (first folded state).
  • the foldable electronic device can be folded inward in this case, so that the folding electronic device can be prevented from being folded or damaged by excessive extrusion; in the case of the second state, the first proximal end edge and the second proximal end The edges are engaged, the center distance between the first rotating shaft 100 and the second rotating shaft 200 is reduced, the first elastic connecting member 700 is squeezed, and the bending radius is reduced. The foldable electronic device is finally placed in the folded state (the second folded state). In this process, since the bending radius is reduced, the foldable electronic device can be prevented from being pulled or torn excessively.
  • the foldable electronic device has an unfolded state, when the unfolded state is bent in the first direction, the outward folding can be realized, and when the unfolded state is bent in the second direction, the inward folding can be realized.
  • the first direction is opposite to the second direction.
  • the first elastic connecting member 700 can be extended or shortened as the first gear 300 and the second gear 400 mesh and rotate. Specifically, when the first gear 300 and the second gear 400 rotate and mesh with the first rotating shaft 100 and the second rotating shaft 200 , the first gear 300 and the second gear 400 can be changed according to the change of the axial distance between the first gear 300 and the second gear 400 .
  • the distance between the first rotating shaft 100 and the second rotating shaft 200 further drives the first elastic connecting member 700 to extend or shorten, that is to say, the first elastic connecting member 700 adapts to the first gear 300 and the second gear through its own elastic deformation.
  • the change of the axial distance between the two gears 400 during the meshing process ensures normal rotation and meshing.
  • the foldable electronic device disclosed in the embodiment of the present application improves the structure of the electronic device in the related art, by installing the first gear 300 and the second gear 400 on the first rotating shaft 100 and the second rotating shaft 200 respectively, and connecting the The first rotating shaft 100 and the second rotating shaft 200 are rotatably connected by the first elastic connecting member 700, and under the tension and compression of the first elastic connecting member 700, the axial distance between the first rotating shaft 100 and the second rotating shaft 200 changes,
  • the folding mechanism is in the first state, the first distal edge is engaged with the second distal edge, the axial center distance becomes larger, and the folding radius becomes larger, so as to ensure that the foldable electronic device can be prevented from being excessively squeezed.
  • inward folding can be achieved; when the folding mechanism is in the second state, the first proximal edge is engaged with the second proximal edge, the axial distance becomes smaller, and the bending radius becomes smaller, thereby ensuring folding
  • the electronic device can be folded out without being excessively pulled or broken. It can be seen that the folding electronic device disclosed in the embodiment of the present application can solve the problem that the screen of the folding electronic device is easily damaged during the folding process by adjusting the axial distance between the first rotating shaft 100 and the second rotating shaft 200, resulting in the use of flexible screens. short life issues.
  • the first rotating shaft 100 is slidably sleeved with the first engaging mechanism 110 , the surface of the first engaging mechanism 110 facing the first gear 300 is provided with the first engaging teeth 111 , and the first gear 300 is facing the first gear 300 .
  • the end surface of the engaging mechanism 110 is provided with the second engaging teeth 310 , and the first connecting portion 500 has a first limiting surface 510 facing the first gear 300 .
  • one end of the first elastic mechanism 800 can be positioned on the first limiting surface 510, the other end is positioned on the first engaging mechanism 110, a first elastic mechanism 800 in a pre-pressed state is arranged between the first engaging mechanism 110 and the first limiting surface 510, and the first engaging teeth 111 engage with the second
  • the teeth 310 are elastically engaged, and the first gear 300 is in contact with the first elastic connecting member 700; the first elastic mechanism 800 between the first engaging mechanism 110 and the first limiting surface 510 can push the first engaging mechanism 110 to make the second engaging
  • the teeth 310 and the first engaging teeth 111 can maintain the meshing state, which facilitates the hovering of the first connecting portion 500, and finally realizes the hovering of the foldable electronic device at any angle during the folding or unfolding process.
  • the second rotating shaft 200 is slidably sleeved with the second engaging mechanism 210 , the end surface of the second gear 400 facing the second engaging tooth 310 is provided with a third engaging tooth 410 , and the second engaging mechanism 210 facing the end surface of the second gear 400 A fourth engaging tooth 311 is provided, and the second connecting portion 600 has a second limiting surface 610 facing the second gear 400.
  • one end of the second elastic mechanism 900 can be positioned on the second limiting surface 610, and the other end can be positioned on the second limiting surface 610.
  • a second elastic mechanism 900 in a pre-pressed state is arranged between the second occlusal mechanism 210 and the second limiting surface 610 , the third occlusal teeth 410 and the fourth occlusal teeth 311 are elastically engaged,
  • the second gear 400 is in contact with the first elastic connecting member 700 .
  • the second elastic mechanism 900 between the second engaging mechanism 210 and the second limiting surface 610 can push the second engaging mechanism 210 so that the fourth engaging teeth 311 and the third engaging teeth 410 can maintain the engaged state, which is beneficial to the second engaging mechanism.
  • the hovering of the connecting portion 600 finally realizes the hovering of the foldable electronic device at any angle during the folding or unfolding process.
  • the first elastic mechanism 800 maintains the elastic engagement of the first engagement teeth 111 and the second engagement teeth 310
  • the second elastic mechanism 900 maintains the elastic engagement of the third engagement teeth 410 and the fourth engagement teeth 311
  • the elastic mechanism 800 and the second elastic mechanism 900 can keep the first gear 300 and the second gear 400 in any meshing position, so as to ensure that the folding mechanism can hover freely.
  • Such a structure is beneficial to enable the user to produce a relatively obvious mechanical operation feeling when manually controlling the folding or unfolding, thereby improving the user's mechanical operation feeling.
  • one of the first engaging mechanism 110 and the second engaging mechanism 210 may be provided with a sleeve 120, and the other may be provided with a sliding rod 220, and the sliding rod 220 is slidably matched with the sleeve 120, during this process , since the first engaging mechanism 110 and the second engaging mechanism 210 are slidably sleeved on the first rotating shaft 100 and the second rotating shaft 200, respectively, they can rotate relative to the first rotating shaft 100 and the second rotating shaft 200 respectively, and the sliding rod 220 is sleeved inside the sleeve 120, so that the first engaging mechanism 110 and the second engaging mechanism 210 do not rotate around the axes of the first rotating shaft 100 and the second rotating shaft 200, but can reciprocate along the extending direction of the sliding rod 220.
  • the axial distance between the first rotating shaft 100 and the second rotating shaft 200 changes.
  • the axial distance between the first rotating shaft 100 and the second rotating shaft 200 increases or decreases, and at the same time, the distance between the first engaging mechanism 110 and the second engaging mechanism 210 increases or decreases.
  • Distance, as the sliding rod 220 and the sleeve 120 slide away from or approach, the folding radius of the folding electronic device increases or decreases, which makes the folding electronic device more smooth during the folding process, and also makes the first rotating shaft during the rotation process.
  • the distance between the 100 and the second rotating shaft 200 changes more accurately, which can improve the stability of folding deformation.
  • the sliding fit direction between the sliding rod 220 and the sleeve 120 may be perpendicular to the axial direction of the first rotating shaft 100 or the second rotating shaft 200 .
  • the first elastic mechanism 800 may be disposed between one of the sleeve 120 and the sliding rod 220 and the first limiting surface 510 , that is, one end of the first elastic mechanism 800 and the sleeve
  • the 120 is matched with one end of the sliding rod 220
  • the other end is matched with the first limiting surface 510 .
  • the second elastic mechanism 900 may be disposed between the other one of the sleeve 120 and the sliding rod 220 and the second limiting surface 610 , that is, one end of the second elastic mechanism 900 is connected to the other one of the sleeve 120 and the sliding rod 220 .
  • the other end is matched with the second limiting surface 610 .
  • the sleeve 120 and the sliding rod 220 can be installed in two ways on the first engaging mechanism 110 and the second engaging mechanism 210.
  • the first engaging mechanism 110 is provided with the sleeve 120
  • the second engaging mechanism 210 is provided with a sliding mechanism.
  • the first elastic mechanism 800 is provided between the sleeve 120 and the first limiting surface 510, and the second elastic mechanism 900 is provided between the sliding rod 220 and the second limiting surface 610;
  • the mechanism 110 is provided with the sliding rod 220, and the second engaging mechanism 210 is provided with the sleeve 120
  • the first elastic mechanism 800 is provided between the sliding rod 220 and the first limiting surface 510
  • the second elastic mechanism 900 is provided with the sleeve between the barrel 120 and the second limiting surface 610 .
  • the sleeve 120 and the sliding rod 220 can be used to assist in the installation of the first elastic mechanism 800 and the second elastic mechanism 900 , so as to realize the positioning of the first elastic mechanism 800 and the second elastic mechanism 900 .
  • a screw hole may be provided on the first limiting surface 510 in contact with the first rotating shaft 100 , a thread is provided on the outer surface of the first rotating shaft 100 in contact with the first limiting surface 510 , and the first rotating shaft The 100 is connected with the first connection part 500 through screw fitting.
  • a screw hole is provided in the contact portion of the second limiting surface 610 and the second rotating shaft 200, a thread is provided on the contact outer surface of the second rotating shaft 200 and the second limiting surface 610, and the second rotating shaft 200 and The second limiting surface 610 can be connected by screw fitting.
  • the first rotating shaft 100 and the first connecting portion 500 and the second rotating shaft 200 and the second connecting portion 600 may also be assembled by means of bonding, welding, riveting, or the like.
  • the first elastic mechanism 800 can be sleeved on the first rotating shaft 100 .
  • the second elastic mechanism 900 can also be sleeved on the second rotating shaft 200 .
  • the first elastic mechanism 800 and the second elastic mechanism 900 may be springs or other components capable of elastic deformation (such as elastic blocks or elastic sheets), and the embodiments of the present application do not limit the specific structure.
  • both the first elastic mechanism 800 and the second elastic mechanism 900 may be coil expansion springs.
  • the deformation of the first elastic mechanism 800 is changed by the change of the engagement state of the first engaging teeth 111 and the second engaging teeth 310, and the first elastic mechanism 800 is deformed.
  • the retention of the first rotating shaft 100 makes the suspension and damping of the first rotating shaft 100 synchronously, the second elastic mechanism 900 and the first elastic mechanism 800 expand and contract synchronously, and the second elastic mechanism 900 is always connected with the second engaging mechanism 210 and the second limiting surface 610
  • the deformation of the second elastic mechanism 900 is changed through the change of the engagement state of the third engagement teeth 410 and the fourth engagement teeth 311, and the retention of the deformation of the second elastic mechanism 900 makes the second shaft 200 hover and damp,
  • the synchronous hovering and damping of the first rotating shaft 100 and the second rotating shaft 200 prevent the user from damaging the foldable electronic device due to excessive force or sudden withdrawal.
  • first elastic mechanism 800 can be fixed on the first limiting surface 510
  • the other end can be fixed on the first engaging mechanism 110
  • one end of the second elastic mechanism 900 can be fixed on the second limiting surface 610 , the other end is fixed on the second engaging mechanism 210 . Therefore, in an optional solution, the first elastic mechanism 800 can be sleeved on the first rotating shaft 100 , or the second elastic mechanism 900 can be sleeved on the second rotating shaft 200 .
  • the first elastic mechanism 800 , the first engaging mechanism 110 and the first limiting surface 510 are all disposed on the first rotating shaft 100
  • the second elastic mechanism 900 , the second engaging mechanism 210 and the second limiting surface 610 are all arranged on the second rotating shaft 200, which facilitates the assembly of the staff and reduces labor costs; and neither the first limiting surface 510 nor the second limiting surface 610 is directly connected to other devices, so there is no
  • the first limiting surface 510 and the second limiting surface 610 are not fixed to other devices in an unstable situation, thereby prolonging the service life of the foldable electronic device.
  • the folding mechanism may further include a second elastic connector 1000.
  • the material and manufacturing process of the second elastic connector 1000 and the first elastic connector 700 may be the same, and thus can be used in the production process. Reduce models and increase production efficiency.
  • the first rotating shaft 100 and the second rotating shaft 200 are both rotatably matched with the second elastic connecting member 1000 , the first gear 300 and the first elastic mechanism 800 are arranged between the first elastic connecting member 700 and the second elastic connecting member 1000 , the second elastic connecting member 1000 is
  • the gear 400 and the second elastic mechanism 900 are disposed between the first elastic connecting member 700 and the second elastic connecting member 1000 , that is, the first gear 300 is located on the side of the first elastic connecting member 700 facing the first elastic mechanism 800 , the first elastic mechanism 800 is located on the side of the second elastic connecting piece 1000 facing the first gear 300; the second gear 400 is located on the side of the first elastic connecting piece 700 facing the first elastic mechanism 800, and the second elastic mechanism 900 is located on the side of the first elastic connecting piece 700 facing the first elastic mechanism 800
  • both the first elastic connecting member 700 and the second elastic connecting member 1000 can adapt to changes in the distance between the first rotating shaft 100 and the second rotating shaft 200 through deformation, and the first elastic connecting member 700 and the second elastic connecting member 700
  • the connecting pieces 1000 are arranged at intervals, so that the balance of the support can be improved.
  • the first elastic connecting member 700 and the second elastic connecting member 1000 are arranged at intervals, which is more conducive to maintaining the relative angle between the first rotating shaft 100 and the second rotating shaft 200 .
  • the first rotating shaft 100 and the second rotating shaft 200 are arranged in parallel. In this case, the included angle between the first rotating shaft 100 and the second rotating shaft 200 is zero.
  • the first elastic connecting member 700 and the second elastic connecting member 1000 are respectively disposed at both ends of the first rotating shaft 100 and the second rotating shaft 200.
  • both ends of the foldable electronic device along the folding direction are provided with elastic connectors, during the folding process of the foldable electronic device, the two ends of the foldable electronic device are folded to the same degree, which avoids the folding process of the foldable electronic device. , the folding degree of the two ends is different, which leads to the breakage of the foldable electronic device.
  • the first connecting portion 500 may be fixedly connected with the first rotating shaft 100 , and the first connecting portion 500 may be provided with a first gap 530 .
  • the first rotating shaft 100 can be fixed on the edge of the length of the first connecting part 500
  • the diameter of the first rotating shaft 100 can be smaller than the thickness of the first connecting part 500
  • the first gap 530 can be opened in the first connecting part 500
  • the two ends of the first shaft 100 are respectively connected to the opposite edges of the first notch 530, and the two edges of the first notch 530 can be drilled to fix the first shaft 100 on the first notch. 530 in the holes on both edges.
  • the first rotating shaft 100 and the first notch 530 form a first accommodating space, and a part of the first gear 300 is located in the first accommodating space.
  • This structure enables the first connecting portion 500 to sacrifice a part of its own structure to form at least a part of the space for accommodating the first gear 300 , so that the structure of the folding mechanism is more compact and occupies less space.
  • the second connecting portion 600 may be fixedly connected with the second rotating shaft 200 , and the second connecting portion 600 may be provided with a second gap 630 .
  • the second rotating shaft 200 can be fixed on the edge of the length of the second connecting part 600, and the diameter of the second rotating shaft 200 can be smaller than the thickness of the second connecting part 600, and the second gap 630 can be opened in the second connecting part 600, the two ends of the second shaft 200 are respectively connected to the two opposite edges of the second notch 630, and holes can be drilled on the two edges of the second notch 630, so as to fix the second shaft 200 on the second notch 630. In the holes on both edges of the notch 630.
  • the second shaft 200 and the second notch 630 form a second accommodating space, and the part of the second gear 400 is located in the second accommodating space.
  • Such a structure enables the second connecting portion 600 to sacrifice a part of its own structure to form at least a part of the space for accommodating the second gear 400 , so that the structure of the folding mechanism is more compact and occupies less space.
  • first gear 300 and the second gear 400 can be placed in the space opposite to the first accommodating space and the second accommodating space, thereby reducing the need for other spaces inside the foldable electronic device It is also beneficial to reduce the size of the whole machine and reduce the material loss under the premise that all the functions of the foldable electronic device can be realized.
  • the first gear 300 can be a first convex gear
  • the second gear 400 can be a second convex gear
  • the first convex gear and the second convex gear are not circular gears
  • the first convex gear and the second convex gear During the meshing process of the convex gears, the distance between the rotation centers of the two changes, the first elastic connecting member 700 is stretched or compressed at the same time, and the axial distance between the first rotating shaft 100 and the second rotating shaft 200 also increases. increase or decrease, and then the bending radius of the foldable electronic device also increases or decreases.
  • the first gear 300 can also be a first eccentric gear
  • the second gear 400 can also be a second eccentric gear.
  • the eccentric gear is still a circular gear, but the rotation center of the eccentric gear is not the geometric center of the circular gear. Since the eccentric gear is still a circular gear, it has the advantage of being simple to manufacture.
  • the embodiments of the present application disclose a foldable electronic device, which may include a flexible screen 1100, a first casing, a second casing, and the above-mentioned folding mechanism.
  • the flexible screen 1100 can be an LED (Light-Emitting Diode, light-emitting diode) flexible display, which has the advantages of strong flexibility, high resolution, and low power consumption.
  • the installation process is simple, and can be installed by magnet adsorption, pasting, etc. , simplifies the installation and disassembly process, and also facilitates maintenance, which greatly reduces installation and maintenance costs.
  • the first housing and the second housing may be metal housings or non-metallic housings, and the embodiments of the present application do not limit the specific materials of the first housing and the second housing.
  • the first connecting part 500 is connected with the first casing
  • the second connecting part 600 is connected with the second casing.
  • the first casing and the second casing can be connected with the first connecting part 500 together with the second casing.
  • the relative rotation between the two connecting parts 600 drives the folding or unfolding of the flexible screen 1100 of the foldable electronic device.
  • the screen 1100 includes a first area, a second area and a connecting area.
  • the first area is connected to the second area through the connecting area, the first area is connected to the first casing, and the second area is connected to the second casing.
  • the first area is connected to the second casing.
  • a region and a second region can be attached to the surfaces of the first shell and the second shell by means of sticking.
  • the area of the area and the area of the second area are the same, which can play a role of supporting the flexible screen 1100 .
  • the flexible screen 1100 When the first casing is rotated relative to the second casing to the folded state of the foldable electronic device, and the flexible screen 1100 is located between the first casing and the second casing, the first distal edge and the second distal The end edges are meshed. Specifically, when the user does not use the foldable electronic device, the flexible screen 1100 meshes with the first gear 300 and the second gear 400 on the first rotating shaft 100 and the second rotating shaft 200.
  • a distal edge is engaged with the second distal edge of the second gear 400, the first elastic connecting member 700 and the second elastic connecting member 1000 are stretched, and the first elastic mechanism 800 and the second elastic mechanism 900 push the first engagement respectively
  • the mechanism 110 and the second engaging mechanism 210 realize hovering and damping when the foldable electronic device rotates, the axial distance between the first rotating shaft 100 and the second rotating shaft 200 is increased, and the bending radius at the first connecting piece and the second connecting piece is Increase the size so that the flexible screen 1100 of the foldable electronic device is located between the first casing and the second casing, which can avoid direct contact between the flexible screen 1100 and the external environment, damage or friction of the flexible screen 1100, thereby prolonging the use of the flexible screen 1100 life;
  • the first casing When the first casing is rotated relative to the second casing to the folded state of the foldable electronic device, and the first area and the second area are respectively located on opposite sides of the first casing and the second casing, the first A proximal edge is engaged with the second proximal edge.
  • the flexible screen 1100 meshes with the first gear 300 and the second gear 400 on the first rotating shaft 100 and the second rotating shaft 200, and the first The first proximal edge of a gear 300 meshes with the second proximal edge of the second gear 400, the first elastic connecting member 700 and the second elastic connecting member 1000 are compressed, and the first elastic mechanism 800 and the second elastic mechanism 900 are respectively Pushing the first engaging mechanism 110 and the second engaging mechanism 210 realizes hovering and damping when the folding electronic device rotates, and the axial distance between the first rotating shaft 100 and the second rotating shaft 200 is reduced, so that the flexible screen 1100 of the folding electronic device is The first area and the second area are respectively located on the opposite sides of the first shell and the second shell.
  • Foldable electronic device is a gear 300 and the second gear 400 on the first rotating shaft 100 and the second rotating shaft 200, and the first The first proximal edge of a gear 300 meshes with the second proximal edge of the second gear 400, the first elastic connecting member 700 and the second elastic connecting member 1000 are
  • the first connecting part 500 may be a first connecting piece fixedly connected with the first casing
  • the second connecting part 600 may be a second connecting piece fixedly connected with the second casing.
  • the first connecting piece and the first shell and the second connecting piece and the second shell may be connected by means of pasting, welding, rivets, or the like.
  • the materials of the first connecting piece and the second connecting piece may be sheet metal materials, and the embodiments of the present application do not limit the specific materials of the first connecting piece and the second connecting piece.
  • the foldable electronic device may also include a driving mechanism.
  • the driving mechanism is connected with the first rotating shaft 100 or the second rotating shaft 200, and then drives the first rotating shaft 100 or the second rotating shaft 200 to rotate, thereby realizing the unfolding or folding of the folding mechanism.
  • the mechanical driving method is mainly reflected in the user Easier when working with foldable electronics.
  • the foldable electronic devices disclosed in the embodiments of the present application may be mobile phones, tablet computers, e-book readers, game consoles, wearable devices, etc.
  • the embodiments of the present application do not limit the specific types of the foldable electronic devices.

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Abstract

本申请公开一种折叠机构，其中：第一连接部与第一转轴相连，第二连接部与第二转轴相连，第一转轴和第二转轴均与第一弹性连接件转动相连，第一齿轮安装在第一转轴上，第二齿轮安装在第二转轴上，第一齿轮与第二齿轮啮合，第一齿轮具有第一远端边缘和第一近端边缘，第二齿轮具有第二远端边缘和第二近端边缘，第一弹性连接件可随第一齿轮和第二齿轮的啮合转动而伸长或缩短，折叠机构具有第一状态和第二状态，在第一状态，第一远端边缘与第二远端边缘啮合，在第二状态，第一近端边缘与第二近端边缘啮合。本申请还公开一种折叠式电子设备。

Description

折叠机构及折叠式电子设备
交叉引用
本发明要求在2020年12月30日提交中国专利局、申请号为202011616737.8、发明名称为“折叠机构及折叠式电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请涉及通信设备技术领域，尤其涉及一种折叠机构及折叠式电子设备。
背景技术
随着技术的发展，电子设备的发展也越来越快速，同时，用户对电子设备的要求也越来越高。目前柔性屏幕也广泛地应用于电子设备，进而形成折叠式的电子设备。
折叠式的电子设备在折叠的过程中经常会出现折叠问题。例如，折叠式的电子设备在内折时因为铰链处的折弯半径较小，较容易导致柔性屏幕被过度挤压而出现折痕或折损。折叠式的电子设备在外折时因为铰链处的折弯半径过大，较容易导致柔性屏幕被过度拉扯变形，甚至会导致柔性屏幕发生破裂。可见，目前的折叠式的电子设备在折叠的过程中存在较容易损坏柔性屏幕的问题，最终导致柔性屏幕的使用寿命较短。
发明内容
本发明公开了一种折叠机构，以解决折叠式电子设备在折叠过程中存在较容易损坏柔性屏幕，导致柔性屏幕使用寿命较短的问题。
为了解决上述问题，本发明采用下述技术方案：
第一方面，本申请实施例公开一种折叠机构，应用于折叠式电子设备，包括第一转轴、第二转轴、第一齿轮、第二齿轮、第一连接部、第二连接部和第一弹性连接件，其中：
所述第一连接部与所述第一转轴相连，所述第二连接部与所述第二转轴相连，所述第一转轴和所述第二转轴均与所述第一弹性连接件转动相连，所述第一齿轮安装在所述第一转轴上，所述第二齿轮安装在所述第二转轴上，所述第一齿轮与所述第二齿轮啮合，所述第一齿轮具有第一远端边缘和第一近端边缘，所述第二齿轮具有第二远端边缘和第二近端边缘，所述第一弹性连接件可随所述第一齿轮和所述第二齿轮的啮合转动而伸长或缩短，所述折叠机构具有第一状态和第二状态，在所述第一状态的情况下，所述第一远端边缘与所述第二远端边缘啮合，在所述第二状态的情况下，所述第一近端边缘与所述第二近端边缘啮合。
第二方面，本申请实施例公开一种折叠式电子设备，包括柔性屏、第一壳体、第二壳体和上文所述的折叠机构，其中：
所述第一壳体与所述第一连接部相连，且可随所述第一连接部转动，所述第二壳体与所述第二连接部相连，且可随所述第二连接部转动；
所述柔性屏包括第一区域、第二区域和衔接区域，所述第一区域通过所述衔接区域与所述第二区域相连，所述第一区域与所述第一壳体相连，所述第二区域与所述第二壳体相连；
在所述第一壳体相对于所述第二壳体转动至所述电子设备的折叠状态，且所述柔性屏位于所述第一壳体与所述第二壳体之间的情况下，所述第一远端边缘与所述第二远端边缘啮合；在所述第一壳体相对于所述第二壳体转动至所述电子设备的折叠状态，且所述第一区域和所述第二区域分别位于所述第一壳体和所述第二壳体相背的两侧的情况下，所述第一近端边缘与所述第二近端边缘啮合。
本发明采用的技术方案能够达到以下有益效果：
本申请实施例公开的折叠机构及折叠式电子设备通过对相关技术中的电 子设备的结构进行改进，通过将第一齿轮和第二齿轮分别安装在第一转轴和第二转轴上，并将第一转轴和第二转轴通过第一弹性连接件转动相连，并且在第一弹性连接件的拉伸和压缩下，第一转轴和第二转轴的轴心距发生变化，当折叠机构在第一状态下，第一远端边缘与第二远端边缘啮合，轴心距变大，折叠半径变大，从而确保折叠式电子设备能够在避免折叠式电子设备被过度挤压出现折痕和损坏的情况下可实现内折；当折叠机构在第二状态下，第一近端边缘与第二近端边缘啮合，轴心距变小，折弯半径变小，从而确保折叠式电子设备能够在避免被过度拉扯或拉破的情况下实现外折。可见，本申请实施例公开的折叠式电子设备，通过调节第一转轴和第二转轴的轴心距，即可解决折叠式电子设备在折叠过程中存在较容易损坏屏幕，导致柔性屏幕使用寿命较短的问题。
附图说明
图1为本申请实施例公开的电子设备的部分结构在内折时的结构示意图；
图2和图3分别为本申请实施例公开的电子设备的不同部位的结构示意图；
图4为本申请实施例公开的电子设备的第一咬合机构的结构示意图；
图5为本申请实施例公开的电子设备的第二咬合机构的结构示意图；
图6为本申请实施例公开的电子设备的第二弹性连接件的结构示意图；
图7为本申请实施例公开的电子设备的第一弹性机构或第二弹性机构的结构示意图；
图8为本申请实施例公开的电子设备的部分结构示意图；
图9为本申请实施例公开的电子设备的部分结构在内折时的结构示意图；
图10为本申请实施例公开的电子设备的部分结构在外折时的结构示意图；
图11为本申请实施例公开的电子设备的部分结构在外折时的结构示意图。
附图标记说明：
100-第一转轴、110-第一咬合机构、111-第一咬合齿、120-套筒、
200-第二转轴、210-第二咬合机构、220-滑杆、
300-第一齿轮、310-第二咬合齿、311-第四咬合齿、
400-第二齿轮、410-第三咬合齿、
500-第一连接部、510-第一限位面、530-第一豁口、
600-第二连接部、610-第二限位面、630-第二豁口、
700-第一弹性连接件、
800-第一弹性机构、
900-第二弹性机构、
1000-第二弹性连接件、
1100-柔性屏。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的电子设备进行详细地说明。
如图1至图11所示，本申请实施例公开一种折叠机构，应用于折叠式电子设备，所公开的折叠机构包括第一转轴100、第二转轴200、第一齿轮300、第二齿轮400、第一连接部500、第二连接部600和第一弹性连接件700。
第一弹性连接件700为第一转轴100和第二转轴200的安装基础，第一转轴100和第二转轴200均与第一弹性连接件700转动相连，第一弹性连接件700可以为橡胶筒件、硅胶套件等，本申请实施例不限制第一弹性连接件700的具体种类。
第一转轴100和第二转轴200均可以绕着自身轴线转动，具体的，用户可以通过手动操控，进而让第一转轴100和第二转轴200按照用户所需的方向转动，从而打开或者折叠折叠式电子设备。
第一齿轮300安装在第一转轴100上，在第一转轴100转动的过程中，第一齿轮300会跟随转动。第二齿轮400安装在第二转轴200上，在第二转轴200转动的过程中，第二齿轮400会跟随转动。具体的，第一齿轮300与第一转轴100可以为一体式结构件，第二齿轮400与第二转轴200可以为一体式结构件。当然，第一齿轮300可以通过键连接的方式固定在第一转轴100上，第二齿轮400可以通过键连接的方式固定在第二转轴200上。本申请实施例不限制第一齿轮300与第一转轴100以及第二齿轮400与第二转轴200之间的具体装配方式。
第一齿轮300与第二齿轮400啮合，从而能够确保第一转轴100与第二转轴200同步转动。第一齿轮300具有第一远端边缘和第一近端边缘，第二齿轮400具有第二远端边缘和第二近端边缘，第一齿轮300的第一远端边缘距离第一齿轮300的转动中心最远，第一近端边缘距离第一齿轮300的转动中心最近，同理，第二齿轮400的第二远端边缘距离第二齿轮400的转动中心最远，第二齿轮400的第二近端边缘距离第二齿轮400的转动中心最近。
第一连接部500与第一转轴100相连，第二连接部600与第二转轴200相连。第一连接部500可随第一转轴100转动，第二连接部600可随第二转 轴200转动。一种可行的操作方式中，用户可以手动转动第一连接部500和第二连接部600，从而实现第一转轴100与第二转轴200相对于第一弹性连接件700的转动，进而实现第一齿轮300和第二齿轮400的啮合转动。
折叠机构具有第一状态和第二状态，在第一状态的情况下，第一远端边缘与第二远端边缘啮合，第一转轴100和第二转轴200的轴心距增加，第一弹性连接件700被拉伸，折弯半径变大，随着第一转轴100和第二转轴200之间轴心距的增加，折叠式电子设备最后处于折叠状态(第一折叠状态)。折叠式电子设备可在此种情况下可实现内折，从而可以避免折叠式电子设备被过度挤压出现折痕或损坏；在第二状态的情况下，第一近端边缘与第二近端边缘啮合，第一转轴100和第二转轴200的轴心距减小，第一弹性连接件700被挤压，折弯半径变小，折叠式电子设备在此种情况下可实现外折，从而使得折叠式电子设备最后处于折叠状态(第二折叠状态)，此过程，由于折弯半径变小，从而可以避免折叠式电子设备被过度拉扯或拉破。
折叠式电子设备具有展开状态，在展开状态向第一方向折弯时，可以实现外折，在展开状态向第二方向折弯时，可以实现内折。第一方向与第二方向相反。
第一弹性连接件700可随第一齿轮300和第二齿轮400的啮合转动而伸长或缩短。具体的，第一齿轮300和第二齿轮400在第一转轴100和第二转轴200旋转带动啮合时，可随着第一齿轮300与第二齿轮400之间轴心距的变化，来改变第一转轴100和第二转轴200之间的距离，进而带动第一弹性连接件700伸长或者缩短，也就是说，第一弹性连接件700通过自身的弹性变形，来适应第一齿轮300和第二齿轮400啮合过程中两者的轴心距的变化，确保转动及啮合的正常进行。
本申请实施例公开的折叠式电子设备通过对相关技术中的电子设备的结构进行改进，通过将第一齿轮300和第二齿轮400分别安装在第一转轴100和第二转轴200上，并将第一转轴100和第二转轴200通过第一弹性连接件 700转动相连，并且在第一弹性连接件700的拉伸和压缩下，第一转轴100和第二转轴200的轴心距发生变化，当折叠机构在第一状态下，第一远端边缘与第二远端边缘啮合，轴心距变大，折叠半径变大，从而确保折叠式电子设备能够在避免折叠式电子设备被过度挤压出现折痕和损坏的情况下可实现内折；当折叠机构在第二状态下，第一近端边缘与第二近端边缘啮合，轴心距变小，折弯半径变小，从而确保折叠式电子设备能够在避免被过度拉扯或拉破的情况下实现外折。可见，本申请实施例公开的折叠式电子设备，通过调节第一转轴100和第二转轴200的轴心距，即可解决折叠式电子设备在折叠过程中存在较容易损坏屏幕，导致柔性屏幕使用寿命较短的问题。
在本申请实施例中，第一转轴100可以滑动地套设有第一咬合机构110，第一咬合机构110朝向第一齿轮300的表面设置有第一咬合齿111，第一齿轮300朝向第一咬合机构110的端面设置有第二咬合齿310，第一连接部500具有朝向第一齿轮300的第一限位面510，具体的，第一弹性机构800的一端可以定位于第一限位面510上，另一端定位于第一咬合机构110上，第一咬合机构110与第一限位面510之间设置有成预压状态的第一弹性机构800，第一咬合齿111与第二咬合齿310弹性啮合，第一齿轮300与第一弹性连接件700接触；第一咬合机构110和第一限位面510之间的第一弹性机构800可以推动第一咬合机构110，使得第二咬合齿310与第一咬合齿111能够维持啮合状态，进而有利于第一连接部500的悬停，最终实现折叠式电子设备在折叠或展开过程中任意角度的悬停。
第二转轴200可以滑动地套设有第二咬合机构210，第二齿轮400朝向第二咬合齿310的端面设置有第三咬合齿410，第二咬合机构210朝向所述第二齿轮400的端面设置有第四咬合齿311，第二连接部600具有朝向第二齿轮400的第二限位面610，具体的，第二弹性机构900的一端可以定位于第二限位面610上，另一端定位于第二咬合机构210上，第二咬合机构210与第二限位面610之间设置有成预压状态的第二弹性机构900，第三咬合齿 410和第四咬合齿311弹性啮合，第二齿轮400与第一弹性连接件700接触。第二咬合机构210和第二限位面610之间的第二弹性机构900可以推动第二咬合机构210，使得第四咬合齿311与第三咬合齿410能够维持啮合状态，进而有利于第二连接部600的悬停，最终实现折叠式电子设备在折叠或展开过程中任意角度的悬停。
在此种情况下，第一弹性机构800维持第一咬合齿111与第二咬合齿310弹性啮合，同时，第二弹性机构900维持第三咬合齿410和第四咬合齿311弹性啮合，第一弹性机构800和第二弹性机构900能够使得第一齿轮300和第二齿轮400保持在任意啮合位置，从而能够确保折叠机构可以随意悬停。此种结构有利于使得用户在手动操控折叠或展开时，能够产生较为明显的机械操作感，进而能够提升用户的机械操控感受。
一种可选的方案，第一咬合机构110和第二咬合机构210中一者可以设置有套筒120，另一者设置有滑杆220，滑杆220与套筒120滑动配合，在此过程中，由于第一咬合机构110和第二咬合机构210分别滑动地套设在第一转轴100与第二转轴200上，进而能够分别相对于第一转轴100和第二转轴200转动，而滑杆220套设在套筒120内部，使得第一咬合机构110和第二咬合机构210不会绕第一转轴100和第二转轴200的轴心转动，但可以沿着滑杆220的延伸方向往复运动，在滑动的同时，第一转轴100与第二转轴200之间的轴心距发生变化。在此种情况下，折叠式电子设备在折叠过程中，第一转轴100与第二转轴200的轴心距增大或减小，同时，第一咬合机构110与第二咬合机构210之间的距离，随着滑杆220与套筒120的滑动远离或靠近，折叠式电子设备的折叠半径增大或减小，使得折叠式电子设备在折叠过程中更加流畅，也使得转动过程中第一转轴100与第二转轴200之间的距离变化较为精确，进而能够提高折叠变形的稳定性。滑杆220与套筒120之间的滑动配合方向可以与第一转轴100或第二转轴200的轴线方向相垂直。
在进一步的技术方案中，第一弹性机构800可以设于套筒120和滑杆220 中的一者与第一限位面510之间，也就是说，第一弹性机构800的一端与套筒120和滑杆220的一者配合，另一端与第一限位面510配合。第二弹性机构900可以设于套筒120和滑杆220中的另一者与第二限位面610之间，也就是说，第二弹性机构900的一端与套筒120和滑杆220的另一者配合，另一端与第二限位面610配合。
具体的，套筒120和滑杆220在第一咬合机构110和第二咬合机构210上可以有两种安装情况，在第一咬合机构110设置有套筒120，第二咬合机构210设置有滑杆220的情况下，第一弹性机构800设与套筒120与第一限位面510之间，第二弹性机构900设与滑杆220与第二限位面610之间；在第一咬合机构110设置有滑杆220，第二咬合机构210设置有套筒120的情况下，第一弹性机构800设与滑杆220与第一限位面510之间，第二弹性机构900设与套筒120与第二限位面610之间。在此种情况下，套筒120和滑杆220可以用于辅助安装第一弹性机构800和第二弹性机构900，进而实现第一弹性机构800及第二弹性机构900的定位。
一种可选的方案中，可以在第一限位面510上与第一转轴100接触部分设有螺孔，第一转轴100与第一限位面510接触外表面设有螺纹，第一转轴100通过螺纹配合实现与第一连接部500之间的连接。一种可选的方案中，在第二限位面610与第二转轴200接触部分设有螺孔，第二转轴200与第二限位面610接触外表面设有螺纹，第二转轴200与第二限位面610可以通过螺纹配合实现连接。当然，第一转轴100与第一连接部500以及第二转轴200与第二连接部600之间还可以通过粘接、焊接、铆接等方式实现装配。
为了使得第一弹性机构800和第二弹性机构900的弹性形变更加规范，一种可选的方案中，第一弹性机构800可以套设在第一转轴100上。同理，第二弹性机构900也可以套设在第二转轴200上。第一弹性机构800和第二弹性机构900可以为弹簧或者其他能够发生弹性形变的部件(例如弹性块或弹性片)，本申请实施例不限制第一弹性机构800和第二弹性机构900的具体 结构。
一种可选的方案中，第一弹性机构800与第二弹性机构900均可以为螺旋伸缩弹簧。
在此种情况下，用户在折叠该折叠式电子设备时，通过第一咬合齿111与第二咬合齿310的咬合状态的变化，来改变第一弹性机构800的形变，第一弹性机构800形变的保持使得第一转轴100的悬停与阻尼，同步的，第二弹性机构900与第一弹性机构800同步伸缩，且第二弹性机构900始终与第二咬合机构210和第二限位面610紧密相连，通过第三咬合齿410和第四咬合齿311的咬合状态的变化，来改变第二弹性机构900的形变，第二弹性机构900形变的保持使得第二转轴200的悬停与阻尼，最终第一转轴100第二转轴200同步的悬停和阻尼，避免了用户因用力过大或突然撤去而损坏折叠式电子设备。
如上文所述，第一弹性机构800的一端可以固定在第一限位面510上，另一端固定在第一咬合机构110上，第二弹性机构900的一端可以固定在第二限位面610上，另一端固定在第二咬合机构210上。因此，一种可选地的方案，第一弹性机构800可以套设在第一转轴100上，或，第二弹性机构900可以套设在第二转轴200上。在此种情况下，第一弹性机构800、第一咬合机构110和第一限位面510均设置在第一转轴100上，第二弹性机构900、第二咬合机构210和第二限位面610均设置在第二转轴200上，此种设置方便工作人员的组装，降低劳动成本；而且第一限位面510和第二限位面610均没有直接与其他器件固定连接，于是也不存在第一限位面510和第二限位面610与其他器件固定不稳定的情况，从而延长折叠式电子设备的使用寿命。
在另一种可选的技术方案中，折叠机构还可以包括第二弹性连接件1000，第二弹性连接件1000与第一弹性连接件700材质与制造工艺可以一样，进而能够在生产过程中可以减少模型，提高生产效率。第一转轴100和第二转轴200均与第二弹性连接件1000转动配合，第一齿轮300和第一弹性机构800 设置于第一弹性连接件700与第二弹性连接件1000之间，第二齿轮400和第二弹性机构900设置于第一弹性连接件700与第二弹性连接件1000之间，也就是说，第一齿轮300位于第一弹性连接件700朝向第一弹性机构800的一侧，第一弹性机构800位于第二弹性连接件1000朝向第一齿轮300的一侧；第二齿轮400位于第一弹性连接件700朝向第一弹性机构800的一侧，第二弹性机构900位于第二弹性连接件1000朝向第二齿轮400的一侧。在此种情况下，第一弹性连接件700和第二弹性连接件1000均能够通过形变来适应第一转轴100与第二转轴200之间的距离变化，第一弹性连接件700和第二弹性连接件1000间隔设置，从而能够提高支撑的均衡性。与此同时，第一弹性连接件700和第二弹性连接件1000间隔设置，更有利于保持第一转轴100和第二转轴200之间相对夹角的保持。在通常情况下，第一转轴100和第二转轴200平行设置，在此种情况下，第一转轴100与第二转轴200之间的夹角为零。
一种可选的方案中，第一弹性连接件700和第二弹性连接件1000分别设于第一转轴100和第二转轴200的两端，用户对折叠式电子设备施加作用力进行折叠时，由于折叠式电子设备沿着折叠方向的两端都设置有弹性连接件，使得折叠式电子设备在折叠过程中，折叠式电子设备两端折叠的程度一样，避免了折叠式电子设备在折叠过程中，两端折叠程度的不同而导致折叠式电子设备出现折损的情况。
在本申请实施例中，第一连接部500可以和第一转轴100固定相连，第一连接部500可以开设有第一豁口530。具体的，第一转轴100可以固定在第一连接部500的长度的边缘上，第一转轴100的直径可以比第一连接部500的厚度小，第一豁口530可以开设在第一连接部500的长度的边缘，第一转轴100的两端分别连接在第一豁口530的相对的两个边缘，可以在第一豁口530的两个边缘钻孔，进而将第一转轴100固定在第一豁口530的两个边缘的孔里。第一转轴100与第一豁口530形成第一容纳空间，第一齿轮300的 部分位于第一容纳空间内。此种结构能够使得第一连接部500牺牲掉自身的一部分结构来形成用于容纳第一齿轮300的至少部分的空间，使得折叠机构的结构更加紧凑，占用空间较小。
第二连接部600可以和第二转轴200固定相连，第二连接部600可以开设有第二豁口630。具体的，第二转轴200可以固定在第二连接部600的长度的边缘上，并且第二转轴200的直径可以比第二连接部600的厚度小，第二豁口630可以开设在第二连接部600的长度的边缘，第二转轴200的两端分别连接在第二豁口630的相对的两个边缘，可以在第二豁口630的两个边缘钻孔，进而将第二转轴200固定在第二豁口630的两个边缘的孔里。第二转轴200与第二豁口630形成第二容纳空间，第二齿轮400的部位位于第二容纳空间内。此种结构能够使得第二连接部600牺牲掉自身的一部分结构来形成用于容纳第二齿轮400的至少部分的空间，使得折叠机构的结构更加紧凑，占用空间较小。
在这种情况下，第一容纳空间与第二容纳空间相对的空间，可以将第一齿轮300和第二齿轮400的至少部分放置在此空间内，从而可以减少对折叠式电子设备内部其他空间的占用，也有利于在能够实现折叠式电子设备所有功能的前提下，缩小整机大小，材料损耗少。
在本申请实施例中，第一齿轮300可以为第一凸齿轮，第二齿轮400可以为第二凸齿轮，第一凸齿轮和第二凸齿轮不是圆形齿轮，第一凸齿轮和第二凸齿轮在啮合过程中，两者的转动中心的距离发生变化，在变化的同时第一弹性连接件700被拉伸或压缩，第一转轴100和第二转轴200的轴心距也随着增大或减小，进而折叠式电子设备的折弯半径也随着变大或变小。
当然，第一齿轮300也可以为第一偏心齿轮，第二齿轮400也可以为第二偏心齿轮。相比于凸齿轮，偏心齿轮仍然为圆形齿轮，只不过，偏心齿轮的转动中心不是圆形齿轮的几何中心，偏心齿轮由于仍为圆形齿轮，因此具有制造简单的优势。
基于本申请实施例公开的折叠机构，本申请实施例公开了一种折叠式电子设备，可以包括柔性屏1100、第一壳体、第二壳体和上文所述的折叠机构。
柔性屏1100可以为LED(Light-Emitting Diode，发光二极管)柔性显示屏，本身具有柔韧性强，分辨率高和低功耗等优点，另外在安装过程简单，可以通过磁铁吸附、粘贴等方法安装，将安装、拆卸流程简单化，同时也便于维修，极大的降低了安装与维修成本。
第一壳体和第二壳体可以为金属壳体，也可以为非金属壳体，本申请实施例不限制第一壳体和第二壳体的具体材质。第一连接部500与第一壳体相连，第二连接部600与第二壳体相连，在折叠机构折叠的过程中，第一壳体和第二壳体能够随第一连接部500与第二连接部600之间的相对转动，而相对转动，进而带动折叠式电子设备的柔性屏1100的折叠或展开。
如上文所述，第一壳体与第一连接部500相连，且可随第一连接部500转动，第二壳体与第二连接部600相连，且可随第二连接部600转动，柔性屏1100包括第一区域、第二区域和衔接区域，第一区域通过衔接区域与第二区域相连，第一区域与第一壳体相连，第二区域与第二壳体相连，具体的，第一区域和第二区域可以通过粘贴的方式连接在第一壳体和第二壳体表面，第一壳体和第二壳体与第一区域和第二区域粘贴的表面的面积，与第一区域和第二区域的面积等大，可以起到支撑柔性屏1100的作用。
在第一壳体相对于第二壳体转动至折叠式电子设备的折叠状态，且柔性屏1100位于第一壳体与第二壳体之间的情况下，第一远端边缘与第二远端边缘啮合，具体的，在用户不使用折叠式电子设备时，柔性屏1100随着第一转轴100和第二转轴200上第一齿轮300和第二齿轮400的啮合，第一齿轮300的第一远端边缘和第二齿轮400的第二远端边缘啮合，第一弹性连接件700和第二弹性连接件1000被拉伸，第一弹性机构800和第二弹性机构900分别推动第一咬合机构110和第二咬合机构210实现折叠式电子设备转动时的悬停和阻尼，第一转轴100和第二转轴200的轴心距增加，第一连接片和第二 连接片处的折弯半径增大，使得折叠式电子设备的柔性屏1100位于第一壳体与第二壳体之间，可以避免柔性屏1100与外接环境直接接触，损坏或者摩擦柔性屏1100，从而延长柔性屏1100的使用寿命；
在第一壳体相对于第二壳体转动至折叠式电子设备的折叠状态，且第一区域和第二区域分别位于第一壳体和第二壳体相背的两侧的情况下，第一近端边缘与第二近端边缘啮合，具体的，在用户使用电子设备时，柔性屏1100随着第一转轴100和第二转轴200上第一齿轮300和第二齿轮400的啮合，第一齿轮300的第一近端边缘和第二齿轮400的第二近端边缘啮合，第一弹性连接件700和第二弹性连接件1000被压缩，第一弹性机构800和第二弹性机构900分别推动第一咬合机构110和第二咬合机构210实现折叠式电子设备转动时的悬停和阻尼，第一转轴100和第二转轴200的轴心距减小，使得折叠式电子设备的柔性屏1100的第一区域和第二区域分别位于第一壳体和第二壳体相背的两侧，当然，可以根据用户的需求，旋转合适的折叠程度，使得用户能够根据自己的喜好更加舒适的使用折叠式电子设备。
在进一步的技术方案中，第一连接部500可以为与第一壳体固定相连的第一连接片，第二连接部600可以为与第二壳体固定相连的第二连接片。一种可选的方案，第一连接片与第一壳体以及第二连接片与第二壳体之间可以通过粘贴、焊接、铆钉等方式连接起来。第一连接片和第二连接片的材料可以为片状金属材料，本申请实施例不限制第一连接片和第二连接片的具体材料。
上文所述的折叠式电子设备的折叠与展开可以通过手动操作实现。当然，折叠式电子设备还可以包括驱动机构。驱动机构与第一转轴100或第二转轴200相连，进而驱动第一转轴100或第二转轴200转动，从而实现折叠机构的展开或折叠，机械驱动的方式相比于手动驱动，主要体现在用户在使用折叠式电子设备时会更加轻松。
本申请实施例公开的折叠式电子设备可以是手机、平板电脑、电子书阅 读器、游戏机、可穿戴设备等，本申请实施例不限制折叠式电子设备的具体种类。
本申请上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (10)

  1. 一种折叠机构，应用于折叠式电子设备，其中，包括第一转轴、第二转轴、第一齿轮、第二齿轮、第一连接部、第二连接部和第一弹性连接件，其中：
    所述第一连接部与所述第一转轴相连，所述第二连接部与所述第二转轴相连，所述第一转轴和所述第二转轴均与所述第一弹性连接件转动相连，所述第一齿轮安装在所述第一转轴上，所述第二齿轮安装在所述第二转轴上，所述第一齿轮与所述第二齿轮啮合，所述第一齿轮具有第一远端边缘和第一近端边缘，所述第二齿轮具有第二远端边缘和第二近端边缘，所述第一弹性连接件可随所述第一齿轮和所述第二齿轮的啮合转动而伸长或缩短，所述折叠机构具有第一状态和第二状态，在所述第一状态的情况下，所述第一远端边缘与所述第二远端边缘啮合，在所述第二状态的情况下，所述第一近端边缘与所述第二近端边缘啮合。
  2. 根据权利要求1所述的折叠机构，其中，所述第一转轴滑动地套设有第一咬合机构，所述第一咬合机构朝向所述第一齿轮的表面设置有第一咬合齿，所述第一齿轮朝向所述第一咬合机构的端面设置有第二咬合齿，所述第一连接部具有朝向所述第一齿轮的第一限位面，所述第一咬合机构与所述第一限位面之间设置有成预压状态的第一弹性机构，所述第一咬合齿与所述第二咬合齿弹性啮合，所述第一齿轮与所述第一弹性连接件接触；和/或，
    所述第二转轴滑动地套设有第二咬合机构，所述第二齿轮朝向所述第二咬合齿的端面设置有第三咬合齿，所述第二咬合机构朝向所述第二齿轮的端面设置有第四咬合齿，所述第二连接部具有朝向所述第二齿轮的第二限位面，所述第二咬合机构与所述第二限位面之间设置有成预压状态的第二弹性机构，所述第三咬合齿和所述第四咬合齿弹性啮合，所述第二齿轮与所述第一弹性连接件接触。
  3. 根据权利要求2所述的折叠机构，其中，所述第一咬合机构和所述第二咬合机构中一者设置有套筒，另一者设置有滑杆，所述滑杆与所述套筒滑 动配合。
  4. 根据权利要求3所述的折叠机构，其中，在所述第一咬合机构设置有所述套筒，所述第二咬合机构设置有所述滑杆的情况下，所述第一弹性机构设与所述套筒与所述第一限位面之间，所述第二弹性机构设与所述滑杆与所述第二限位面之间；
    在所述第一咬合机构设置有所述滑杆，所述第二咬合机构设置有所述套筒的情况下，所述第一弹性机构设与所述滑杆与所述第一限位面之间，所述第二弹性机构设与所述套筒与所述第二限位面之间。
  5. 根据权利要求2所述的折叠机构，其中，所述第一弹性机构套设在所述第一转轴上，或，所述第二弹性机构套设在所述第二转轴上。
  6. 根据权利要求2所述的折叠机构，其中，所述折叠机构还包括第二弹性连接件，所述第一转轴和所述第二转轴均与所述第二弹性连接件转动配合，所述第一齿轮和所述第一弹性机构设置于所述第一弹性连接件与所述第二弹性连接件之间，所述第二齿轮和所述第二弹性机构设置于所述第一弹性连接件与所述第二弹性连接件之间。
  7. 根据权利要求1所述的折叠机构，其中，所述第一连接部和所述第一转轴固定相连，所述第一连接部开设有第一豁口，所述第一转轴的两端分别连接在所述第一豁口的相对的两个边缘，且所述第一转轴与所述第一豁口形成第一容纳空间，所述第一齿轮的部分位于所述第一容纳空间内；和/或，
    所述第二连接部和所述第二转轴固定相连，所述第二连接部开设有第二豁口，所述第二转轴的两端分别连接在所述第二豁口的相对的两个边缘，且所述第二转轴与所述第二豁口形成第二容纳空间，所述第二齿轮的部位位于所述第二容纳空间内。
  8. 根据权利要求1所述的折叠机构，其中，所述第一齿轮为第一凸齿轮，所述第二齿轮为第二凸齿轮；或者，所述第一齿轮为第一偏心齿轮，所述第二齿轮为第二偏心齿轮。
  9. 一种折叠式电子设备，其中，包括柔性屏、第一壳体、第二壳体和权利要求1-8中任一项所述的折叠机构，其中：
    所述第一壳体与所述第一连接部相连，且可随所述第一连接部转动，所述第二壳体与所述第二连接部相连，且可随所述第二连接部转动；
    所述柔性屏包括第一区域、第二区域和衔接区域，所述第一区域通过所述衔接区域与所述第二区域相连，所述第一区域与所述第一壳体相连，所述第二区域与所述第二壳体相连；
    在所述第一壳体相对于所述第二壳体转动至所述电子设备的折叠状态，且所述柔性屏位于所述第一壳体与所述第二壳体之间的情况下，所述第一远端边缘与所述第二远端边缘啮合；在所述第一壳体相对于所述第二壳体转动至所述电子设备的折叠状态，且所述第一区域和所述第二区域分别位于所述第一壳体和所述第二壳体相背的两侧的情况下，所述第一近端边缘与所述第二近端边缘啮合。
  10. 根据权利要求9所述的电子设备，其中，所述第一连接部为与所述第一壳体固定相连的第一连接片，所述第二连接部为与所述第二壳体固定相连的第二连接片。
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