CN212003929U

CN212003929U - Folding mechanism and electronic device

Info

Publication number: CN212003929U
Application number: CN202020529708.7U
Authority: CN
Inventors: 李明阳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-24
Anticipated expiration: 2030-04-10

Abstract

The utility model provides a folding mechanism, which comprises an accommodating frame, at least one pair of rotating combinations arranged on the accommodating frame, and a gear combination positioned between the at least one pair of rotating combinations, and at least one electronic device arranged on the accommodating frame, at least one rotating assembly comprises a supporting frame and a rotating frame rotationally connected to the supporting frame, and a connecting rod arranged between the supporting frame and the rotating frame, one end of the connecting rod is movably connected with the rotating frame, the other end of the connecting rod is provided with a driving gear meshed with the gear combination, one end of the connecting rod provided with the driving gear is rotatably connected with the supporting frame, at least one rotating frame rotates relative to the corresponding supporting frame, so as to drive the corresponding connecting rod to rotate, so that the driving gear of the connecting rod rotates, the driving gear drives the gear combination to rotate to realize the synchronous rotation of at least one pair of rotating frames which rotate and combine, and the outer surface of the containing frame is provided with a through hole corresponding to the electronic device. The utility model also provides an be equipped with folding mechanism's electron device.

Description

Folding mechanism and electronic device

Technical Field

The utility model relates to a folding screen field of buckling especially relates to a folding mechanism that can buckle flexible screen and be equipped with folding mechanism's electron device.

Background

The flexible display screen is widely favored by consumers due to the advantages of being foldable, curved, flexible and stretchable. The existing flexible display screen is generally supported on a shell of a terminal such as a mobile phone through a folding mechanism, and the folding mechanism can support and bend the flexible display screen; when the folding mechanism is in a flat state, the terminal is similar to a flat plate, and when the folding mechanism is in a bent state, the terminal is similar to a small-gear mobile phone. However, the existing folding mechanism can only realize bending and unfolding of the flexible display screen, and has a single function, so how to add some new functions to the folding mechanism to improve user experience is a key for improving product competitiveness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic device who promotes user and use experience reaches electronic device's folding mechanism.

In order to solve the technical problem, the utility model provides a folding mechanism, folding mechanism includes the holding frame, locates at least a pair of rotation combination of holding frame, be located at least a pair of rotate the gear combination between the rotation combination, and locate an at least electron device of holding frame, at least one rotate the combination include the carriage, rotate connect in rotating turret on the carriage, and set up in the carriage with connecting rod between the rotating turret, the one end swing joint of connecting rod is in the rotating turret, the other end of connecting rod is provided with the meshing in the drive gear of gear combination, the connecting rod have drive gear one end rotate connect in the carriage, at least one rotating turret rotates for the carriage that corresponds to drive corresponding connecting rod rotates the messenger the drive gear of connecting rod rotates, drive gear drives the gear combination rotates the synchronous rotation that realizes the rotating turret of at least a pair of rotation combination And the outer surface of the accommodating frame is provided with a through hole corresponding to the electronic device.

The utility model also provides an electronic device, it includes casing, flexible screen to and folding mechanism, the casing includes first framework and second framework, folding mechanism connect in first framework with between the second framework, flexible screen locates the casing reaches on the folding mechanism, folding mechanism is used for first framework with the folding or the exhibition of flat of second framework.

The rotating frame of each rotating combination of the folding mechanism of the electronic device is rotatably connected with the supporting frame, and the connecting rod of each rotating combination is arranged between the supporting frame and the rotating frame; one end of the connecting rod is movably connected to the rotating frame, a driving gear at the other end of the connecting rod is meshed with the gear combination, and one end of the connecting rod with the driving gear is rotationally connected with the supporting frame, when at least one rotating frame rotates relative to the corresponding supporting frame, at least one rotating frame can drive the corresponding connecting rod to rotate so as to enable the driving gear on the connecting rod to rotate, the driving gear drives the gear combination to rotate so as to realize synchronous rotation of the rotating frames of each pair of rotating combinations, thereby enabling the first frame body and the second frame body to realize synchronous relative rotation or opposite rotation in a linkage mode of the folding mechanism, so as to complete the bending or flattening of the flexible screen, facilitate the bending or flattening of the electronic device, and have convenient use, and the folding mechanism has simple structure, convenient assembly and disassembly and saves assembly and disassembly time so as to reduce the production cost. Additionally, still be equipped with an at least electron device on the holding frame, at least one the device can realize from function, consequently, the utility model provides a folding mechanism can not only make things convenient for bending or the exhibition flat of electron device, can also realize the function of an at least electron device to folding mechanism's new function has been increased, electronic device's user experience can be promoted.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the electronic device in fig. 1.

Fig. 3 is an exploded view of the folding mechanism and housing of fig. 2.

Fig. 4 is an exploded perspective view of the folding mechanism of fig. 3.

Fig. 5 is an exploded isometric view of another perspective of the folding mechanism of fig. 4.

Fig. 6 is an exploded perspective view of the rotating body of the folding mechanism of fig. 4, which includes a pair of rotating assemblies and gear assemblies.

Fig. 7 is an exploded perspective view of one of the rotation assemblies of fig. 6.

Fig. 8 is an exploded perspective view of the alternative rotation assembly of fig. 6.

Fig. 9 is a partially assembled schematic view of the electronic device of fig. 2.

Fig. 10 is a further assembled schematic view of the electronic device of fig. 9.

Fig. 11 is a cross-sectional view of the electronic device of fig. 1 taken along line XI-XI.

Fig. 12 is a cross-sectional view of the electronic device of fig. 1 taken along line XII-XII.

Fig. 13 is a cross-sectional view of the electronic device of fig. 1 taken along line XIII-XIII.

Fig. 14 is a schematic folded state diagram of the electronic device in fig. 1.

Fig. 15 is a cross-sectional view of the electronic device of fig. 14 taken along the line XV-XV.

Fig. 16 is a cross-sectional view of the electronic device of fig. 14 taken along line XVI-XVI.

Fig. 17 is a cross-sectional view of the electronic device of fig. 14 taken along line XVII-XVII.

Fig. 18 is a schematic view of an electronic device according to an embodiment of the present invention in a folded state.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Referring to fig. 1 to 5, fig. 1 is a schematic perspective view of an electronic device 100 according to an embodiment of the present invention; FIG. 2 is an exploded perspective view of the electronic device 100 of FIG. 1; FIG. 3 is an exploded view of the folding mechanism 40 and housing 20 of FIG. 2; FIG. 4 is an exploded perspective view of the folding mechanism 40 of FIG. 3; fig. 5 is an exploded perspective view of the folding mechanism 40 of fig. 4 from another perspective. The utility model discloses an electronic device 100 in one of them embodiment includes casing 20, flexible screen 30 to and folding mechanism 40, casing 20 includes first framework 21 and second framework 23, flexible screen 30 set up in casing 20 reaches on the folding mechanism 40, folding mechanism 40 is used for first framework 21 with folding or the exhibition flat of second framework 23. The flexible screen 30 includes a bendable region 31 corresponding to the folding mechanism 40, and two non-bendable regions 33 connected to opposite sides of the bendable region 31. The folding mechanism 40 is supported on the back surface of the bendable region 31 of the flexible panel 30, and the first frame 21 and the second frame 23 are supported on the two non-bendable regions 33 of the flexible panel 30, respectively. The folding mechanism 40 includes an accommodating frame 41, at least one rotating body disposed on the accommodating frame 41, and at least one electronic device disposed on the accommodating frame 41. At least one of the rotating bodies includes at least one pair of rotating assemblies 42 disposed on the accommodating frame 41, and a gear assembly 46 disposed between the at least one pair of rotating assemblies 42; at least one of the rotating assemblies 42 comprises a supporting frame 43, a rotating frame 44 rotatably connected to the supporting frame 43, and a connecting rod 45 arranged between the supporting frame 43 and the rotating frame 44; one end of the connecting rod 45 is movably connected to the rotating frame 44, the other end of the connecting rod 45 is provided with a driving gear 451 meshed with the gear assembly 46, one end of the connecting rod 45 with the driving gear 451 is rotatably connected to the supporting frame 43, at least one rotating frame 44 rotates relative to the corresponding supporting frame 43 to drive the corresponding connecting rod 45 to rotate so as to drive the driving gear 451 of the connecting rod 45 to rotate, the driving gear 451 drives the gear assembly 46 to rotate to realize the synchronous rotation of the rotating frames 44 of at least one pair of rotating assemblies 42, and the outer surface of the accommodating frame 41 is provided with a through hole corresponding to the electronic device.

Specifically, the supporting frames 43 of the at least one pair of rotating assemblies 42 are fixed in the accommodating frame 41 at intervals, and one ends of the rotating frames 44 of the at least one pair of rotating assemblies 42, which are far away from the supporting frames 43, are fixed on the first frame body 21 and the second frame body 23, respectively. Each rotating frame 44 rotates relative to the corresponding supporting frame 43, and can drive the corresponding connecting rod 45 to rotate so as to rotate the driving gear 451 of the connecting rod 45, and the driving gear 451 drives the gear assembly 46 to rotate so as to realize synchronous rotation of the rotating frames 44 of the rotating assemblies 42, so that the first frame body 21 and the second frame body 23 rotate synchronously or reversely, that is, the first frame body 21 and the second frame body 23 are bent or flattened synchronously in a linkage manner of the folding mechanism 40.

In this embodiment, the electronic device 100 is a mobile phone. It is to be appreciated that in other embodiments, the electronic device 100 may be, but is not limited to, a radiotelephone, a pager, a Web browser, a notepad, a calendar, and/or a PDA for a Global Positioning System (GPS) receiver; two mutually spaced rotating bodies are arranged in the accommodating frame 41, and each rotating body comprises a pair of rotating assemblies 42 and the gear assembly 46 positioned between the pair of rotating assemblies 42; the electronic device may be but does not include a speaker, a charging interface, a USB interface, or the like; the accommodating frame 41 is provided with two spaced rotating assemblies 42.

The rotating frame 44 of each rotating assembly 42 of the folding mechanism 40 of the electronic device 100 of the present invention is rotatably connected to the supporting frame 43, and the connecting rod 45 of each rotating assembly 42 is disposed between the supporting frame 43 and the rotating frame 44; one end of the connecting rod 45 is movably connected to the rotating frame 44, the driving gear 450 at the other end of the connecting rod 45 is meshed with the gear assembly 46, one end of the connecting rod 45 having the driving gear 450 is rotatably connected to the supporting frame 43, when at least one rotating frame 44 rotates relative to the corresponding supporting frame 43, at least one rotating frame 44 can drive the corresponding connecting rod 45 to rotate so as to enable the driving gear 450 on the connecting rod 45 to rotate, the driving gear 450 drives the gear assembly 46 to rotate so as to achieve synchronous rotation of the rotating frames 44 of each pair of rotating assemblies 42, so that the first frame body 21 and the second frame body 23 can synchronously rotate or reversely rotate in a linkage manner of the folding mechanism 40, so as to complete bending or flattening of the flexible screen 30, so as to facilitate bending or flattening of the electronic device 100, and the folding mechanism 40 has a simple structure, the assembly and disassembly are convenient, the assembly and disassembly time is saved, and the production cost is reduced. Additionally, still be equipped with an at least electron device, at least one on the holding frame 41 electricity the device can realize from the function, consequently, the utility model provides a folding mechanism 40 can not only make things convenient for bending or the exhibition flat of electron device 100, can also realize an at least electron device's function to increased folding mechanism 40's new function, can promote electron device 100's user experience.

The rotating shaft between the rotating frame 44 and the supporting frame 43 of each rotating assembly 42 of the folding mechanism 40 is a virtual shaft, and the axis of the virtual shaft is located outside the rotating assembly 42; specifically, the axial line of the rotating shaft between the rotating frame 44 and the supporting frame 43 of each rotating assembly 42 of the folding mechanism 40 is located on the neutral layer of the flexible screen 30 of the electronic device 100, so that the bending resistance of the flexible screen 30 can be improved, and the flexible screen 30 can be ensured not to be damaged to the maximum extent.

The neutral layer is that the outer layer of the flexible screen 30 is stretched, the inner layer of the flexible screen 30 is extruded, a transition layer which is not stretched and not extruded is arranged on the section of the transition layer, the stress of the transition layer is little, and the transition layer is the neutral layer. The utility model provides an axial lead of 42 axis of rotation combination all is located when electronic device 100 bends or exhibition flat on the neutral layer to can guarantee that flexible screen 30 at utmost is not impaired. The utility model provides a openly indicate the face court the face of the play plain noodles of flexible screen 30, the back indicates the face of the back court the face of the play plain noodles of flexible screen 30.

As shown in fig. 4 and 5, the accommodating frame 41 is a hollow bar-shaped frame, and the accommodating frame 41 includes a rectangular base plate 411, two arc-shaped side plates 413 located at two opposite sides of the base plate 411, and end plates 415 located at two opposite ends of the base plate 411; the base plate 411, the two side plates 413 and the two end plates 415 together form an installation space 416, and the support frames 43 and the gear assemblies 46 of the two rotating bodies are accommodated in the installation space 416. Two opposite ends of the inner surfaces of the two side plates 413 are respectively provided with a connecting block 412 protruding into the mounting space 416, and each connecting block 412 is provided with a connecting hole 4120.

In this embodiment, the accommodating frame 41 is provided with a first electronic device 51 and a second electronic device 53 electrically connected to a main board of the electronic device 100, specifically, the first electronic device 51 is a speaker, the second electronic device 53 is a charging interface, and the speaker and the charging interface are respectively located at two opposite ends of the accommodating frame 41. The through hole comprises a plurality of sound outlet holes 417 arranged on the outer surface of the accommodating frame 41 and a plurality of jacks 418 arranged on the outer surface of the accommodating frame 41; a plurality of sound outlet holes 417 are communicated with the installation space 416 and correspond to the loudspeaker, and sound generated by the loudspeaker during working is transmitted out of the sound outlet holes 417; the plurality of jacks 418 are communicated with the installation space 416 and correspond to the charging interfaces, and external charging plugs penetrate through the jacks 418 to be plugged into the charging interfaces.

An installation groove 410 is formed on the inner surface of the accommodating frame 41 corresponding to the sound outlet 417, and the installation groove 410 is used for positioning the speaker; preferably, a sealing layer 511 is disposed in the mounting groove 410, and the speaker is disposed on an inner surface of the accommodating frame 41 corresponding to the sealing layer 511.

In other embodiments, only a speaker electrically connected to the main board of the electronic device 100 is disposed in the accommodating frame 41, the speaker is connected to the inner surface of the accommodating frame 41 by gluing, clamping, or screwing, the speaker corresponds to the sound outlet 417, and the sound generated by the speaker is transmitted out from the sound outlet 417.

In other embodiments, only one charging interface electrically connected to the main board of the electronic device 100 is disposed in the receiving frame 41, the charging interface is connected to the inner surface of the receiving frame 41 by gluing, clamping, or screwing, the charging interface corresponds to the plug hole 418, and an external charging plug passes through the plug hole 418 and is plugged into the charging interface.

In other embodiments, at least one USB interface electrically connected to the electronic device 100 is disposed in the accommodating frame 41, the at least one USB interface is accommodated in the accommodating frame 41, and a through hole corresponding to the at least one USB interface is disposed on an outer surface of the accommodating frame 41; the USB plug passes through the through hole and is plugged in the USB interface.

In other embodiments, two of the speaker, the charging interface and the USB interface are disposed on the accommodating frame 41; or the accommodating frame 41 is provided with a loudspeaker, a charging interface and a USB interface.

In other embodiments, various key switches may be further disposed on the accommodating frame 41, and a pressing portion of each key switch is exposed out of an outer surface of the accommodating frame 41.

As shown in fig. 2 and 3, the first frame body 21 is provided with a first receiving groove 211 at a side adjacent to the second frame body 23, the second frame body 23 is provided with a second receiving groove 231 at a side adjacent to the first frame body 21, when the first frame body 21 and the second frame body 23 of the electronic device 100 are in a flat state, a receiving space enclosed by the first receiving groove 211 and the second receiving groove 231 is received in the receiving space, and the receiving frame 41 of the folding mechanism 40 is received in the receiving space. A first accommodating groove 212 is formed in one side of the front surface of the first frame 21, which is adjacent to the first accommodating groove 211; a second receiving groove 232 is formed on a side of the front surface of the second frame 23 adjacent to the second receiving groove 231. The first frame 21 is provided with two spaced connection spaces 213 with a T-shaped cross section on the bottom surface of the first accommodating groove 212, each connection space 213 is communicated with the first accommodating groove 211, each connection space 213 comprises a rectangular accommodating groove 214 and a positioning groove 216 arranged on the bottom surface of the first frame 21 on the accommodating groove 214; each connecting space 213 is used for mounting a rotating frame 44, and a plurality of locking holes 215 are formed in the bottom surface of the accommodating groove 214; the second frame 23 has two spaced connection spaces 233 with a T-shaped cross section on the bottom surface of the second accommodating groove 232, the connection spaces 233 are communicated with the second accommodating groove 231, each connection space 233 includes a rectangular accommodating groove 234 and a positioning groove 236 disposed on the bottom surface of the accommodating groove 234 of the second frame 23. The connecting space 233 is used for mounting another rotating frame 44, and specifically, a plurality of locking holes 235 are formed in the bottom surface of the connecting space 233.

In this embodiment, a first notch 217 is formed in a side surface of the first frame 21 facing the second frame 23, a second notch 237 is formed in a side surface of the second frame 23 facing the first frame 21, and when the housing 20 is in a flat state, a space where the first notch 217 and the second notch 237 are matched is communicated with the through hole of the accommodating frame 41. Therefore, when the first frame body 21 and the second frame body 23 are in the flat state, the sound generated by the speaker in the accommodating frame 41 during operation can be transmitted out through the through hole and the space formed by the first notch 217 and the second notch 237.

In other embodiments, the first frame 21 has a first through hole penetrating through the first receiving slot 211, and when the housing 20 is in the flat state, the first through hole is connected to the sound outlet 417; the sound generated by the speaker in the accommodating frame 41 during operation can be transmitted out through the through hole and the first through hole.

In other embodiments, the second frame 23 is provided with a second through hole penetrating through the second receiving slot 231, and when the housing 20 is in the flat state, the second through hole is communicated with the sound outlet 417; the sound generated by the speaker in the accommodating frame 41 during operation can be transmitted out through the through hole and the second through hole.

Referring to fig. 6 to 7, fig. 6 is an exploded perspective view of the rotating body of the folding mechanism 40 in fig. 4; the rotating body comprises a pair of rotating assemblies 42 and a gear assembly 46; fig. 7 is an exploded perspective view of one of the rotation assemblies 42 of fig. 6. The supporting frame 43 includes a front surface 430 and a back surface, and the back surface can be attached to the inner surface of the accommodating frame 41. A plurality of shaft holes 431 are formed in one end face of the supporting frame 43, and the shaft holes 431 are used for connecting the gear combination 46; in this embodiment, each supporting frame 43 has four shaft holes 431 formed on an end surface facing the other supporting frame 43. The back surface is provided with a connecting port 433 corresponding to the connecting block 412 on the accommodating frame 41, and the connecting block 412 can be accommodated in the connecting port 433. The front surface of the supporting frame 43 is provided with a through hole 434 corresponding to the connecting hole 4120, and the through hole 434 is a countersunk hole so as to receive the head of the locking member. The middle part of the front 430 of the supporting frame 43 is provided with a receiving opening 436, the receiving opening 436 is far away from the connecting opening 433, and the receiving opening 436 penetrates through the back of the supporting frame 43. The supporting frame 43 is provided with a positioning rod 432 at a side of the receiving opening 436 away from the through hole 434, two opposite ends of the positioning rod 432 are respectively connected to two opposite inner walls of the receiving opening 436, and the positioning rod 432 is adjacent to the front surface 430 of the supporting frame 43, i.e. the front surface of the positioning rod 432 is separated from the front surface 430 of the supporting frame 43 by a distance. A pair of circular arc-shaped rotating ribs 438 are convexly arranged on two opposite inner walls of the accommodating opening 436 of the supporting frame 43 towards the accommodating opening 436, and the axial line of the rotating ribs 438 is overlapped with the axial line of a rotating shaft between the rotating frame 44 of the rotating assembly 42 and the supporting frame 43. Opposite ends of each rotating rib 438 extend to the front face 430 of the support frame 43.

The rotating frame 44 comprises a rotating block 445, a mounting frame 447 and a connecting plate 448 connected between the rotating block 445 and the mounting frame 447, wherein a reinforcing plate is added on the connecting plate 448 to increase the connection strength between the rotating block 445 and the mounting frame 447. The rotating block 445 is a semi-cylindrical rotating block, that is, the cross section of the rotating block 445 is circular arc, and the rotating block 445 includes a front face 4450 of a rectangular shape and a back face of a circular arc shape. The rotating block 445 is rotatably received in the receiving opening 436 of the support frame 43. A pair of arc-shaped grooves 4452 are formed on two opposite side surfaces of the rotating block 445, the pair of arc-shaped grooves 4452 correspond to the pair of rotating ribs 438 in the accommodating opening 436 of the supporting frame 43, and the axial line of the arc-shaped groove 4452 is overlapped with the axial line of the rotating shaft between the rotating frame 44 and the corresponding supporting frame 43. Opposite ends of each arcuate slot 4452 extend through the front face 4450 of the block 445. The mounting frame 447 includes a rectangular connecting plate 4471, and a positioning portion 4470 provided to protrude from the rear surface of the connecting plate 4471. The positioning part 4470 includes two extending plates 4473 arranged on the back surface of the connecting plate 4471 at intervals, and an end plate 4474 connected to one end of the two extending plates 4473 far away from the rotating block 445, and a receiving space is defined between the two extending plates 4473 and the end plate 4474, and the receiving space is used for receiving one end of the connecting rod 45. The extending plates 4473 extend along a direction perpendicular to the axial line of the arc-shaped slots 4452, a pair of link slots 4476 are formed in the two extending plates 4473, and each link slot 4476 extends obliquely. Specifically, each link groove 4476 extends obliquely on the corresponding extension plate 4473 from the end adjacent to the end plate 4474 and near the connection plate 4471 in the extending direction of the extension plate 4473. The rotary block 445 is located at an end of the connecting plate 4471 on a side away from the end plate 4474, that is, the rotary block 445 is connected to an end of the connecting plate 4471 on a side away from the end plate 4474 through the connecting plate 448. The front surface of the connecting plate 4471 is provided with a plurality of mounting holes 4478 at two sides of the positioning part 4470, and the mounting holes 4478 are countersunk through holes.

The link 45 includes a link bar 451, a connecting shaft 452 provided at one end of the link bar 451, and a driving gear 450 provided at the other end of the link bar 451. The connecting bar 451 includes a straight bar portion and an arc bar portion, the connecting shaft 452 is fixed to an end of the straight bar portion away from the arc bar portion, and the driving gear 450 is disposed at an end of the arc bar portion away from the connecting shaft 452. The axis of the connecting shaft 452 is parallel to the axis of the driving gear 450. The middle of the driving gear 450 is provided with a shaft hole 456 along the axial direction. The driving gear 450 includes a gear body and a plurality of teeth protruding on the outer circumferential surface of the gear body, and the extending direction of each tooth is parallel to the axial direction of the connecting shaft 452. In this embodiment, the teeth of the driving gear 450 are not axially circumferentially arrayed in a complete circle on the outer circumferential surface of the wheel body, and a plurality of teeth of the driving gear 450 are axially circumferentially arrayed in an arc shape on the outer circumferential surface of the wheel body facing away from the connecting shaft 452. Specifically, the drive gear 450 includes five teeth. In other embodiments, the teeth of the driving gear 450 may be disposed around the wheel body.

As shown in fig. 6, the gear assembly 46 includes a pair of transmission gears 460 and a plurality of rotating shafts 461. The pair of transmission gears 460 are engaged with each other and can be engaged with the driving gears 450 of the connecting rods 45 of the pair of rotating assemblies 42 respectively. A through hole 464 is axially formed in the middle of each transmission gear 460, and a rotating shaft 461 is fixed in the through hole 464. A shaft 461 is also secured within the shaft aperture 456 of each drive gear 450. In the present invention, the transmission gear 460 and the driving gear 450 are straight gears.

As shown in fig. 2 to 8, when assembling the folding mechanism 40, each rotating body is assembled, specifically, the rotating frame 44 is rotatably connected to the supporting frame 43, that is, the rotating block 445 of the rotating frame 44 is inserted into the receiving opening 436 of the supporting frame 43, and the pair of rotating ribs 438 are slidably received in the pair of arc-shaped grooves 4452 of the rotating block 445. At this time, the rotating frame 44 is rotatably coupled to the supporting frame 43. The end of the connecting rod 45 with the connecting shaft 452 is accommodated between the two extending plates 4473, so that the two opposite ends of the connecting shaft 452 are movably inserted into the two connecting rod grooves 4476, respectively. Then the gear combination 46 is arranged between the pair of rotating combinations 42; specifically, the gear assembly 46 is placed between the pair of rotating assemblies 42, such that the rotating shafts 461 of the pair of transmission gears 460 directly face the two shaft holes 431 in the middle of each rotating assembly 42, and the opposite ends of the rotating shafts 461 are respectively and rotatably inserted into the corresponding shaft holes 431; and the rotating shafts 461 on the driving gears 450 on the two connecting rods 45 are opposite to the two shaft holes 431 on the outer side of each rotating assembly 42, so that the opposite ends of the rotating shaft 46 on each driving gear 450 are respectively and rotatably inserted into the corresponding shaft holes 431. At this time, the rotating block 445 and the driving gear 450 of the connecting rod 45 on the same rotating group 42 are located on the same side of the rotating frame 44, and the pair of transmission gears 460 are engaged with each other and respectively engaged with the pair of transmission gears 460 to form a linkage mechanism. Then, each pair of rotating assemblies 42 is placed in the accommodating frame 41, the connecting blocks 412 are respectively inserted into the connecting ports 433 of the corresponding rotating assemblies 42, and a plurality of locking members are provided to respectively penetrate through the through holes 434 of the corresponding supporting frames 43 and are locked in the corresponding connecting holes 4120, so that the pair of rotating assemblies 42 are fixed in the accommodating frame 41.

The assembled supporting frame 43 and the rotating frame 44 of each rotating body are connected through the arc-shaped grooves 4452 and the rotating ribs 438 which are matched with each other to realize mutual rotation, the arc-shaped grooves 4452 are arranged on the rotating frame 44, and the rotating ribs 438 are arranged on the supporting frame 43. The rotating shaft between the rotating frame 44 and the supporting frame 43 is a virtual shaft, the axis of the virtual shaft is located outside the rotating assembly 42, and the axis of the virtual shaft coincides with the axis of the arc-shaped groove 4452.

In other embodiments, the arc-shaped groove may be opened on the supporting frame 43, and the rotating rib may be disposed on the rotating frame 44, specifically, the arc-shaped groove is opened on the inner wall of the receiving opening 436 of the supporting frame 43, the rotating rib is protruded on the rotating block 445, and the rotating rib is slidably received in the arc-shaped groove, so that the rotating frame 44 and the supporting frame 43 are rotatably connected.

As shown in fig. 2 and 9, the electronic device 100 further includes two cover plates 60 attached to the front surfaces of the first frame 21 and the second frame 23, respectively, and a support sheet 70 attached to the back surface of the flexible screen 30. Each cover plate 60 is provided with a plurality of receiving slots 62, and each receiving slot 62 corresponds to a reinforcing plate on the connecting plate 448 of the rotating frame 44. The support sheet 70 is a flexible support sheet, and the support sheet 70 may be a thin metal sheet such as a copper foil, a liquid metal sheet, a memory alloy sheet, a plastic sheet, or a sheet made of other suitable materials. In this embodiment, the support plate 70 is a thin steel plate.

Referring to fig. 2, 7 to 13, fig. 9 is a partially assembled schematic view of the electronic device 100 in fig. 2; FIG. 10 is a further assembled schematic view of the electronic device 100 of FIG. 9; FIG. 11 is a cross-sectional view of the electronic device 100 of FIG. 1 taken along line XI-XI; FIG. 12 is a cross-sectional view of the electronic device 100 of FIG. 1 taken along line XII-XII; fig. 13 is a cross-sectional view of the electronic device 100 of fig. 1 taken along line XIII-XIII. When the electronic device 100 is assembled, the first frame body 21 is flush with the second frame body 23, so that the first accommodating groove 211 of the first frame body 21 and the second accommodating groove 231 of the second frame body 23 enclose an accommodating space; placing the accommodating frame 41 of the folding mechanism 40 in the accommodating space, so that the mounting frame 447 of each rotating assembly 42 is respectively placed in the connecting space 213 corresponding to the first frame 21 and the connecting space 233 corresponding to the second frame 23; specifically, the positioning portion 4470 of one of the mounting frames 447 of each rotation assembly 42 is engaged into the corresponding positioning groove 216, and the connecting plate 4471 is received in the receiving groove 214; the positioning portion 4470 of the other mounting frame 447 is engaged into the corresponding positioning slot 236, and the connecting plate 4471 is received in the receiving slot 234. A plurality of locking pieces are respectively passed through the mounting holes 4478 on the connecting plate 4471 and locked in the corresponding locking holes 215 and 235. At this time, the first frame 21 and the second frame 23 are in a flat state, and each rotating rack 44 is positioned on the corresponding positioning rod 432, that is, the positioning rod 432 is supported on the back surface of the connecting plate 448 of the rotating rack 44; the first notch 217 of the first frame 21 and the second notch 237 of the second frame 23 are combined to form a plurality of circular spaces, and the circular spaces are communicated with the sound outlet 417 of the accommodating frame 41. Then, the first electronic device 51 and the second electronic device 53 are respectively and fixedly connected to the inner surface of the accommodating frame 41, so that the first electronic device 51 and the second electronic device 53 respectively face the sound outlet 417 and the jack 418, and the first electronic device 51 and the second electronic device 53 are both electrically connected to the main board of the electronic device 100. The two cover plates 60 are respectively attached to the front surfaces of the first frame 21 and the second frame 23, the reinforcing plate on the connecting plate 448 of each rotating assembly 42 is received in the corresponding receiving groove 62, and the heads of the locking members on the electronic device 100 are received in the corresponding countersunk holes, so that the front surfaces of the two cover plates 60 are located on the same plane, which is beneficial to reducing the overall thickness of the electronic device 100. The front surface of the supporting sheet 70 is attached to the back surface of the flexible screen 30, and then the back surface of the supporting sheet 70 is attached to the front surface of the cover plate 60, that is, the electronic device 100 is assembled.

Referring to fig. 14 to 17, fig. 14 is a schematic folded state diagram of the electronic device 100 in fig. 1; FIG. 15 is a cross-sectional view of the electronic device 100 of FIG. 14 taken along line XV-XV; FIG. 16 is a cross-sectional view of electronic device 100 of FIG. 14 taken along line XVI-XVI; FIG. 17 is a cross-sectional view of electronic device 100 of FIG. 14 taken along line XVII-XVII; fig. 18 is a schematic diagram of the electronic device 100 according to an embodiment of the present invention in a folded state. When the electronic device 100 needs to be bent, a force F1 for bending at least one of the first housing 21 and the second housing 23 of the electronic device 100 is applied, and the first housing 21 and the second housing 23 which are fixedly connected to each other can be rotated in a direction to approach each other as shown in fig. 16 by applying a force F1 for bending the second housing 23. Specifically, the rotating frame 44 fixed on the second frame 23 rotates clockwise in the direction of the first frame 21, the rotating block 445 rotates clockwise in the receiving opening 436 of the corresponding supporting frame 43, that is, the rotating rib 438 slides in the corresponding arc-shaped groove 4452, so that the connecting shaft 452 of the connecting rod 45 connected to the rotating frame 44 slides along the connecting rod groove 4476 toward the end adjacent to the receiving frame 41, and the connecting shaft 452 rotates in the connecting rod groove 4476, so that the driving gear 450 of the connecting rod 45 rotates clockwise, the driving gear 450 drives the corresponding transmission gear 460 to rotate counterclockwise, the transmission gear 460 drives the corresponding other transmission gear 460 to rotate clockwise, the other transmission gear 460 drives the driving gear 450 of the other connecting rod 45 to rotate counterclockwise, the connecting shaft 452 of the other connecting rod 45 slidably abuts against the inner wall of the corresponding connecting rod groove 4476, and the connecting shaft 452 of the other connecting rod 45 rotates in the connecting rod groove 4476, so that the first frame body 21 rotates towards the second frame body 23, and the first frame body 21 and the second frame body 23 are adjacent to each other, that is, the folding mechanism 40 completes the bending of the electronic device in a linkage manner. At this time, the sound outlet 417 and the insertion hole 418 of the accommodating frame 41 are exposed, the sound outlet facilitates the sound emitted by the speaker to be transmitted, and the insertion hole 418 facilitates the insertion of an external plug.

When the electronic device 100 is bent, a bending force may be applied to the first housing 21, and the first housing 21 and the second housing 23 fixedly connected thereto may be rotated in directions adjacent to each other. Specifically, the rotating frame 44 fixed on the first frame 21 rotates counterclockwise in the direction of the second frame 23, the rotating block 445 rotates counterclockwise in the receiving opening 436 of the corresponding supporting frame 43, that is, the rotating rib 438 slides in the corresponding arc-shaped groove 4452 to drive the rotating frame 44 to rotate counterclockwise, so that the connecting shaft 452 of the connecting rod 45 connected to the rotating frame 44 slides along the connecting rod groove 4476 toward the end adjacent to the receiving frame 41, and the connecting shaft 452 rotates in the connecting rod groove 4476, so that the driving gear 450 of the connecting rod 45 rotates counterclockwise, the driving gear 450 drives the corresponding transmission gear 460 to rotate clockwise, the transmission gear 460 drives the other transmission gear 460 to rotate counterclockwise, the other transmission gear 460 drives the driving gear 450 of the other connecting rod 45 to rotate clockwise, so that the connecting shaft 452 of the other connecting rod 45 slidably abuts against the inner wall of the corresponding connecting rod groove 4476, and the connecting shaft 452 of the other connecting rod 45 rotates in the connecting rod groove 4476, so that the second frame 23 rotates towards the first frame 21, and the first frame 21 and the second frame 23 are adjacent to each other, that is, the folding mechanism 40 completes the bending of the electronic device in a linkage manner.

When the electronic device 100 is bent, a force for bending the first frame 21 and the second frame 23 may be applied together to rotate the rotating frames 44 connected to the first frame 21 and the second frame 23 in directions adjacent to each other; one of the rotating frames 44 rotates clockwise, the other rotating frame 44 rotates counterclockwise, the driving gear 450 of the connecting rod 45 on the rotating frame 44 rotating clockwise rotates clockwise, the driving gear 450 of the connecting rod 45 on the rotating frame 44 rotating counterclockwise rotates counterclockwise, and the connecting shaft 452 on each connecting rod 45 slides towards the accommodating frame 41 in the corresponding connecting rod groove 4476 and rotates in the connecting rod groove 4476; the clockwise driving gear 450 drives the corresponding transmission gear 460 to rotate counterclockwise, and the counterclockwise driving gear 450 drives the corresponding transmission gear 460 to rotate clockwise, so that the first frame 21 and the second frame 23 are adjacent to each other, thereby completing the bending of the electronic device.

When the electronic device 100 needs to be flattened, the external charging plug 500 (as shown in fig. 18) inserted into the insertion hole 418 of the accommodating frame 41 is firstly removed, a flattening force F2 (as shown in fig. 16) is applied to at least one of the first frame body 21 and the second frame body 23 of the electronic device 100, and a flattening force F2 is applied to the second frame body 23, so that the rotating frames 44 connected to the first frame body 21 and the second frame body 23 can rotate in the directions away from each other. Specifically, the rotating block 445 fixed on the second frame 23 rotates counterclockwise in the receiving opening 436 of the corresponding supporting frame 43, that is, the rotating rib 438 slides in the corresponding arc-shaped groove 4452 to drive the rotating frame 44 to rotate counterclockwise, so that the connecting shaft 452 of the connecting rod 45 connected to the rotating frame 44 slides along the connecting rod groove 4476 toward the end away from the receiving frame 41, and the connecting shaft 452 rotates counterclockwise in the connecting rod groove 4476, so that the driving gear 450 of the connecting rod 45 rotates counterclockwise, the driving gear 450 drives the corresponding transmission gear 460 to rotate clockwise, the transmission gear 460 drives the corresponding other transmission gear 460 to rotate counterclockwise, the other transmission gear 460 drives the driving gear 450 of the other connecting rod 45 to rotate clockwise, so that the other connecting rod 45 rotates clockwise, the connecting shaft 452 of the other connecting rod 45 slidably pushes against the inner wall of the corresponding connecting rod groove 4476, and the other connecting shaft 452 of the connecting rod 45 rotates in the connecting rod groove 4476, so that the first frame body 21 rotates in a direction away from the second frame body 23, and the first frame body 21 and the second frame body 23 are further away from each other, that is, the folding mechanism 40 completes flattening of the electronic device in a linkage manner. At this time, the first notch 217 of the first housing 21 and the second notch 237 of the second housing 23 are combined into a plurality of circular spaces, and the circular spaces are communicated with the sound outlet 417 of the accommodating frame 41.

When the electronic device 100 is flattened, a flattening force may be applied to the first housing 21, and the rotating frame 44 fixedly connected to the first housing 21 and the second housing 23 may be rotated in a direction away from each other. Specifically, the rotating block 445 fixed on the first frame 21 rotates clockwise in the receiving opening 436 of the corresponding supporting frame 43, that is, the rotating rib 438 slides in the corresponding arc-shaped groove 4452 to drive the rotating frame 44 to rotate clockwise, so that the connecting shaft 452 of the connecting rod 45 connected to the rotating frame 44 slides along the connecting rod groove 4476 toward the end away from the receiving frame 41, and the connecting shaft 452 rotates clockwise in the connecting rod groove 4476, so that the driving gear 450 of the connecting rod 45 rotates clockwise, the driving gear 450 drives the corresponding transmission gear 460 to rotate counterclockwise, the transmission gear 460 drives another transmission gear 460 to rotate clockwise, the another transmission gear 460 drives the driving gear 450 of another connecting rod 45 to rotate counterclockwise, so that the another connecting rod 45 rotates counterclockwise, and the connecting shaft 452 of the another connecting rod 45 slidably pushes against the inner wall of the corresponding connecting rod groove 4476, and the other connecting shaft 452 of the connecting rod 45 rotates in the connecting rod groove 4476, so that the second frame 23 rotates in a direction away from the first frame 21, and the first frame 21 and the second frame 23 are further away from each other, that is, the folding mechanism 40 completes the flattening of the electronic device in a linkage manner.

When the electronic device 100 is bent, the first frame 21 and the second frame 23 may be simultaneously applied with a force for flattening, and the rotating frames 445 connected to the first frame 21 and the second frame 23 may be rotated in directions away from each other; one of the rotating frames 44 rotates clockwise, the other rotating frame 44 rotates counterclockwise, the driving gear 450 of the connecting rod 45 on the rotating frame 44 rotating clockwise rotates clockwise, the driving gear 450 of the connecting rod 45 on the rotating frame 44 rotating counterclockwise rotates counterclockwise, the connecting shaft 452 on each connecting rod 45 slides towards one end far away from the accommodating frame 41 in the corresponding connecting rod groove 4476 and rotates in the connecting rod groove 4476; the clockwise driving gear 450 drives the corresponding transmission gear 460 to rotate counterclockwise, and the counterclockwise driving gear 450 drives the corresponding transmission gear 460 to rotate clockwise, so that the first frame 21 and the second frame 23 are away from each other, and the electronic device is flattened.

In any of the bent states of the folding mechanism 40 from the unfolded state to the completely bent state, since there are frictional damping forces between each of the driving gears 450 and the corresponding transmission gear 460, and between the two transmission gears 460, the folding mechanism 40 can be positioned in any of the bent states described above without the application of external force.

The utility model discloses owing to adopt the mode linkage of straight-teeth gear meshing, compare in the mode that adopts the linkage of helical gear meshing, do not need very high manufacturing accuracy, but reduction in production cost promotes production efficiency effectively.

The above is an implementation manner of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principles of the embodiments of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A folding mechanism is characterized in that the folding mechanism comprises a containing frame, at least one pair of rotating combinations arranged on the containing frame, at least one pair of gear combinations positioned between the at least one pair of rotating combinations, and at least one electronic device arranged on the containing frame, wherein at least one pair of rotating combinations comprises a supporting frame, a rotating frame rotationally connected on the supporting frame, and a connecting rod arranged between the supporting frame and the rotating frame, one end of the connecting rod is movably connected on the rotating frame, the other end of the connecting rod is provided with a driving gear meshed with the gear combinations, one end of the connecting rod provided with the driving gear is rotationally connected on the supporting frame, the at least one rotating frame rotates relative to the corresponding supporting frame to drive the corresponding connecting rod to rotate so as to enable the driving gear of the connecting rod to rotate, the driving gear drives the gear combinations to rotate to realize the synchronous rotation of the rotating frames of the at least one pair of, the outer surface of the accommodating frame is provided with a through hole corresponding to the electronic device.

2. The folding mechanism of claim 1, wherein at least one of the electronic devices is a speaker, the speaker is accommodated in the accommodating frame, the through hole is a sound outlet hole formed on an outer surface of the accommodating frame, the sound outlet hole corresponds to the speaker, and a sound generated by the speaker is emitted from the sound outlet hole.

3. The folding mechanism of claim 2, wherein an installation groove is formed on the inner surface of the accommodating frame corresponding to the sound outlet hole, a sealing layer is disposed in the installation groove, and the speaker is disposed on the inner surface of the accommodating frame corresponding to the sealing layer.

4. The folding mechanism of claim 1, wherein at least one of the electronic devices is a charging interface, the charging interface is accommodated in the accommodating frame, the through hole is a jack disposed on an outer surface of the accommodating frame, and the jack corresponds to the charging interface.

5. The folding mechanism as claimed in claim 1, wherein at least one of the electronic devices is a USB port, the USB port is accommodated in the accommodating frame, and the through hole is disposed on an outer surface of the accommodating frame corresponding to the USB port.

6. The folding mechanism of claim 1, wherein the receiving frame is provided with one of a speaker, a charging interface and a USB interface; the accommodating frame is provided with two of a loudspeaker, a charging interface and a USB interface; or the accommodating frame is provided with a loudspeaker, a charging interface and a USB interface.

7. The folding mechanism as claimed in claim 1, wherein an end of the link rod away from the driving gear is connected to the rotating frame through a connecting shaft and a link rod groove, and the connecting shaft is slidably and rotatably connected to the link rod groove.

8. The folding mechanism of claim 7, wherein the rotating frame includes a mounting frame, the mounting frame is provided with two extending plates spaced from each other, the two extending plates are provided with a pair of connecting rod grooves, the connecting shaft is fixed at one end of the connecting rod away from the driving gear, one end of the connecting rod, which is fixed with the connecting shaft, is located between the two extending plates, and two opposite ends of the connecting shaft are respectively inserted into the two connecting rod grooves.

9. The folding mechanism of claim 8, wherein the rotating frame further comprises a rotating block disposed on the mounting frame, the rotating block and the connecting rod are located on the same side of the mounting frame, the supporting frame is provided with an accommodating opening, and the rotating block is rotatably connected to the accommodating opening.

10. The folding mechanism according to claim 9, wherein the rotating block is connected with the supporting frame by a circular arc-shaped sliding slot and a circular arc-shaped sliding rail in a matching manner, a rotating shaft between the rotating block and the supporting frame is a virtual shaft, and the virtual shaft, a shaft axis of the sliding slot and a shaft axis of the sliding rail are collinear.

11. An electronic device, comprising a housing, a flexible screen, and the folding mechanism according to any one of claims 1 to 10, wherein the housing comprises a first frame and a second frame, the folding mechanism is connected between the first frame and the second frame, the flexible screen is disposed on the housing and the folding mechanism, and the folding mechanism is used for folding or unfolding the first frame and the second frame.

12. The electronic device according to claim 11, wherein the first frame body is provided with a first receiving groove at a side adjacent to a second frame body, the second frame body is provided with a second receiving groove at a side adjacent to the first frame body, when the first frame body and the second frame body are unfolded, the first receiving groove and the second receiving groove enclose a receiving space, and the receiving frame of the folding mechanism is received in the receiving space.

13. The electronic device of claim 12, wherein the first frame has a first through hole penetrating through the first receiving slot, and when the housing is in a flat state, the first through hole is communicated with the sound outlet hole of the receiving frame; or the second frame body is provided with a second through hole penetrating through the second containing groove, and when the shell is in a flattened state, the second through hole is communicated with the sound outlet hole of the containing frame; or a first notch is formed in the side face, facing the second frame body, of the first frame body, a second notch is formed in the side face, facing the first frame body, of the second frame body, and when the shell is in a flat state, the space, matched with the second notch, of the first notch is communicated with the through hole of the containing frame.

14. The electronic device of claim 12, wherein the housing further comprises two cover plates covering the first frame and the second frame, and when the first frame and the second frame are flat, the front surfaces of the two cover plates are coplanar; the rotating shafts of the pair of rotating combinations of the folding mechanism are virtual shafts, and the axis line of each virtual shaft is positioned on the neutral layer of the flexible screen.