CN210007737U

CN210007737U - Synchronizing mechanism, folding display device and communication equipment

Info

Publication number: CN210007737U
Application number: CN201920805596.0U
Authority: CN
Inventors: 陈小硕; 刘明生; 刘建军; 陈进; 刘昌白
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-01-31
Anticipated expiration: 2029-05-30

Abstract

synchronous mechanism, including , second folding plate, back cover, gear frame fixed on the back cover, fixing seat fixed on 0, second folding plate, slide block limited between the fixing seat and the folding plate and gear train limited on the gear frame, the gear train includes at least two 1 gear assemblies meshed with each other, every 2 gear assembly includes 3 gear, hinged end extended from the 4 gear and hinged with the slide block, and rotating shaft limited in the gear frame, the hinged end of two gear assemblies is hinged with slide block on and second folding plate respectively, when the and second folding plate are actuated, the gears of two gear assemblies meshed with each other and rotate to control the rotating speed of and second folding plate, this application also provides folding display device and communication equipment.

Description

Synchronizing mechanism, folding display device and communication equipment

Technical Field

The present application relates to the field of communications electronics, and more particularly, to synchronization mechanisms, foldable display devices, and communication devices.

Background

Although the folding screen can be bent, the folding screen still cannot be bent by 180 degrees, the bent part still needs to maintain fixed R angle, otherwise the screen is damaged.

No matter the folding screen is folded outwards or inwards, the problem to be solved is how to ensure that when the folding screen is bent, the bending mechanism is adapted to the R-angle radian required by the bending part of the screen, at the moment, the inner side of the bending part of the folding screen can shorten the slight distance, while the outer side of the folding screen can lengthen the slight distance, at the moment, the parts tightly attached to the folding screen must keep synchronous change, otherwise, the screen can be damaged by extrusion. And guarantee that there is support in the folding screen back, otherwise unsettled screen can cause the damage when the finger is pressed.

SUMMERY OF THE UTILITY MODEL

In view of this, it is desirable to provide kinds of synchronization mechanisms that allow two folding surfaces of the folding display device to be folded at a speed equal to relative to each other to protect a relatively fragile folding screen, a folding display device, and a communication apparatus.

In order to solve the above technical problem, the present application provides kinds of lazytongs, include , second folded sheet, back of the body lid, be fixed in carrier on the back of the body lid, be fixed in fixing base on 0, the second folded sheet, spacing in the fixing base with slider between the folded sheet and spacing in gear train on the carrier, the gear train includes two mutually engaged's 1 gear assembly at least, every 2 gear assembly include 3 gear, certainly gear extend and with the slider rotates articulated end and spacing in pivot in the carrier, the articulated end of two gear assemblies respectively with , the slider on the second folded sheet is articulated, when , second folded sheet actuate, the gear of two gear assemblies interlock rotates, the rotational speed of control , second folded sheet leads.

Preferably, the fixing seat includes a seat base fixed to the th or second folding plate, a position-limiting portion disposed on a side surface of the seat base , and a position-limiting groove located on a side surface of the seat base and below the position-limiting portion.

Preferably, the slider includes a slider main body, a stopper formed by extending laterally outward from a bottom surface of the slider main body, and a hinge portion disposed on the slider main body toward the gear assembly , and the stopper is retained in the retaining groove, that is, between the retaining portion and the or the second folding plate.

Preferably, the slider still includes and transversely runs through the mounting hole of slider main part, the damping piece is installed respectively to the both open ends of mounting hole, is equipped with the spring between two damping pieces, the side of spacing portion is equipped with two at least recesses, the damping piece with the recess cooperation corresponds the position when expanding and closed two states respectively.

Preferably, the number of the gear racks is two, each gear rack comprises a main body part fixed on the back cover and at least two th shaft holes sequentially and transversely penetrating through the main body part in the length direction of the main body part, and rotating shafts fixed with the th gears are arranged on pairs of th shaft holes corresponding to the two gear racks in a penetrating manner.

Preferably, the gear assembly further comprises two second gear assemblies engaged with each other and located between the two th gear assemblies, wherein each second gear assembly comprises two second gears located between the th gears and engaged with each other, and each second gear is engaged with the adjacent th gear.

Preferably, pairs of second shaft holes are formed in the gear frame between the shaft holes, and the second gear is limited between the second shaft holes through a second rotating shaft.

Preferably, the main body of the gear rack protrudes upwards at two ends in the transverse direction to form protruding parts, the th axle hole is opened on the protruding parts, the second axle hole is arranged on the main body, the th axle hole and the second axle hole are not on the same level, and the second axle hole is closer to the back cover.

Preferably, the gear rack further comprises a protection part formed by extending from the inner side of the main body part, the protection part comprises an th protection part located below the second shaft hole and a second protection part located below the shaft hole, and the th protection part and the second protection part of each gear rack respectively protect gears and second gears.

In order to solve the above technical problem, the present application provides folding display devices, which include the above-mentioned synchronization mechanism, a folding screen attached to the side of the folding plate departing from the back cover , and a folding path control mechanism.

To solve the above technical problem, the present application provides kinds of communication devices, including the aforementioned synchronization mechanism.

The synchronous mechanism controls the th and second folding plates to fold at the same speed, namely, synchronizes the running speeds of the th and second folding plates, thereby realizing the accurate folding and unfolding operation of the folding display device without generating the mechanism damage caused by the th and second folding plate running state being not .

Drawings

The drawings described herein are for providing an -step understanding of the present application and constitute a part of this application, , and the present application is illustrative of the exemplary embodiments and description thereof and is not to be construed as limiting the present application.

FIG. 1 is a perspective view of a foldable display device according to the present application;

FIG. 2 is a perspective view of a foldable display device according to the present application;

FIG. 3 is a perspective view of the foldable display device with the rear cover removed and a partially enlarged view thereof;

FIG. 4 is a perspective view of a rear cover of the foldable display device of the present application;

FIG. 5 is a perspective view of the folding path control mechanism of the present application;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a perspective view of a support base of the folding path control mechanism of the present application;

fig. 8 is a perspective view of the sliding seat of the folding path control mechanism of the present application;

FIG. 9 is a perspective view of the synchronization mechanism of the present application;

fig. 10 is a perspective view of a limit seat body of the synchronization mechanism of the present application;

FIG. 11 is a partially exploded perspective view of the synchronization mechanism of the present application;

fig. 12 is a perspective view of a fixed base of the synchronization mechanism of the present application;

fig. 13 is a perspective view of the folding display device of the present application in a closed state and a partially enlarged view thereof.

Detailed Description

For purposes of clarity, technical solutions and advantages of the present application, the present application will be described in detail and in full with reference to specific embodiments of the present application and accompanying drawings.

Referring to fig. 1 to 3, the foldable display device of the present application includes a foldable plate 10, a back cover 20, a folding path control mechanism 40 and a

synchronization mechanism

50, 60 respectively fixed between the foldable plate 10 and the back cover 20, and a foldable screen (not shown) is mounted on a side of the foldable plate 10 facing away from the back cover 20 .

The folding plate 10 comprises a th folding plate 11 and a second folding plate 12 matched with the th folding plate 11, the matched parts of the th folding plate 11 and the second folding plate 12 respectively comprise a notch (not numbered) and a

protruding sheet

112, 122, a plurality of

fixing holes

111, 121 are arranged on the transverse positions of the

protruding sheets

112, 122, the protruding sheet 112 of the th folding plate 11 is matched in the notch of the second folding plate 12, and the protruding sheet 122 of the second folding plate 12 is matched in the notch of the th folding plate 11.

As shown in fig. 4, the back cover 20 includes a back cover housing 21, a back cover cavity 22 opened in the back cover housing 21, and a fixing structure 23 disposed at the bottom of the back cover cavity 22. The back cover cavity 22 is in a circular arc structure.

As shown in fig. 5 to 8, the folding path control mechanism 40 includes a base 30, a sliding base 41 capable of rotating on the base 30, a rotating shaft 42 penetrating through the base 30, and gears 43 disposed at two ends of the rotating shaft 42 and respectively driving the sliding base 41.

The holder body 30 includes a fixed base 31 fixed in the back cover cavity 22, pairs of arc-shaped slots 32 opened on the surface of the fixed base 31 in a transverse direction , pairs of second arc-shaped slots 35 opened on the surface of the fixed base 31 in a second direction opposite to the direction , 5 separation walls 33 between and arc-shaped slots 32 and a second separation wall 37 between pairs of the second arc-shaped slots 35, the inner arcs of the , 32 and 35 simulate the folding trajectory that the folding display device should keep when folded or unfolded, the pairs of arc-shaped slots 32 form closed ends 321 and open ends at the transverse ends, the pairs of the second arc-shaped slots 35 form closed ends 351 and open ends 352 at the transverse ends, the closed ends 321 and the open ends 322 of the arc-shaped slots 32 are respectively the same as the closed ends 351 and the closed ends of the second arc-shaped slots 35, the open ends are located at the open ends 351 and 5834, the open ends of the second arc-shaped slots 32, the second separation walls 37 and 5834 are located at the open ends, 6 and .

The back cover 20 is formed by CNC machining of an aluminum alloy material, and the seat body 30 is made of a stainless steel material through a powder metallurgy process.

In a specific implementation, the holder body 30 may be combined with the back cover 20 to form , and made of materials, such as preferably unmodified materials, however, when stainless steel is used as the appearance material, surface treatment is not required, so that the solution of the present application selects a split design for the back cover 20 and the holder body 30, but the present application still covers a design structure.

The sliding seat 41 includes a base portion 412 fixed to the th or

second folding plate

11, 12, an arc convex surface 411 matched with the arc surface of the th or

second arc groove

32, 35, a meshing space 413 opened on the side surface of the sliding seat 41 , a plurality of tooth structures 414 arranged on the side of the arc convex surface 411 of the meshing space 413, and an arc convex hull 415 near the side of the base portion 412 , wherein the arc convex hull 415 is concentric with the arc convex surface 411.

In practical implementation, pairs of the two pairs of sliding seats 41 are installed in the arc-shaped slots 32, and pairs are installed in the second arc-shaped slots 35, the base portion 412 of the sliding seat 41 is partially fixed to the

protruding pieces

112, 122 of the or the

second folding plate

11, 12, that is, the sliding seat 41 fixed to the th folding plate 11 extends to the protruding piece 112 at the notch of the second folding plate 12, and the sliding seat 41 fixed to the second folding plate 12 extends to the protruding piece 122 at the notch of the th folding plate 11.

During assembly, the two rotating shafts 42 are respectively inserted into the

shaft holes

34, 37 of the th and second separating

walls

33, 35, and the gears 43 fixed at the two ends of the rotating shafts 42 are respectively engaged with the engaging spaces 413 of the two sliding seats 41 at the two sides of the th or second separating

walls

33, 35 and engaged with the tooth structures 414.

When the th

folding plate

11, 12 is folded or unfolded, the sliding seat 41 is driven to rotate around the th arc-

shaped groove

32, 35, and simultaneously, the two gears 43 at the two ends of the rotating shaft 42 are respectively engaged with the tooth structure 414 in the engaging space 413 to rotate, and the two pairs of sliding seats 41 fixed to the

th folding plate

11, 12 are respectively arranged at the two lateral sides of the seat body 30, and the rotation of the two pairs of sliding seats 41 relative to the th arc-

shaped groove

32, 35 is completely symmetric, so that the rotation tracks of the can be kept at the two sides of the

th folding plate

11, 12 when rotating, and the folding is carried out according to the radian required by the folding screen, thereby avoiding damaging the folding screen.

The folding path control mechanism 40 of the present application is provided with the corresponding and the second arc-

shaped grooves

32 and 35 of the th and the

second folding plates

10 and 12 respectively through the opposite two sides of the seat body 30, and then the th and the second arc-

shaped grooves

32 and 35 are assembled with the arc-shaped convex surface 411 and two pairs of sliding seats 41 fixed with the th and the

second folding plates

11 and 12 respectively, so that the folding plates 10 can rotate according to the given track through the matching of the arc-

shaped grooves

32 and 35 and the arc-shaped convex surface 411, thereby avoiding the damage to the folding screen.

As shown in fig. 3 and fig. 9 to fig. 12, the synchronizing mechanism includes a gear rack 50, a fixing base 61 fixed on the folding plate 10, a sliding block 62 limited between the fixing base 61 and the folding plate 10, damping blocks 63 installed on two lateral sides of the sliding block 62, and

gear sets

64 and 65 fixed on the gear rack 50.

The fixing base 61 includes a base 611 fixed on the th or the

second folding plate

11, 12, a limiting portion 613 disposed on the side surface of the base 611 , and a limiting groove 612 disposed on the side surface of the base 611 and below the limiting portion 613, wherein a plurality of grooves 614 are disposed on the outer side surface of the limiting portion 613.

The gear racks 50 are pairs, each gear rack 50 includes a main body 51, fixing lugs 52 formed by extending from the longitudinal outer side of the main body 51, an arc surface 53 disposed at the top end of the main body 51 and matching with the arc cavity of the back cover cavity 22, protrusions 54 formed by protruding from the lateral two ends of the main body 51, a protection part 56 formed by extending from the longitudinal inner side of the main body 51, pairs of second shaft holes 55 formed by penetrating the main body 51 in the longitudinal direction, and 0 pairs of 1 shaft holes 541 formed by penetrating the protrusions 54 in the longitudinal direction, the protrusions 54 may also be parts of the main body 51, the second shaft holes 55 and the shaft holes 541 are not on the same horizontal plane, the protection part 56 includes a protection part 561 located below the second shaft holes 55 and a second protection part 562 located below the shaft holes 541, and the protection part 562 only corresponds to second shaft holes 55 and third shaft holes .

The slider 62 includes a slider main body 621, a stopper 622 formed to extend laterally outward from a bottom surface of the slider main body 621, a mounting hole 623 formed in a lateral outer surface of the slider main body 621, and a hinge 624 formed in the slider main body 631 to face the

gear assembly

64, 65 .

The damping block 63 is installed in the installation hole 623, the damping block 63 includes an insertion portion 631 installed in the installation hole 623 and a damping portion 632 formed by protruding from the lateral outer side of the insertion portion 631, the installation hole 623 penetrates in the lateral direction, damping blocks 63 are installed on both lateral outer sides of the installation hole 623, elastic members (not shown) such as springs are arranged between the two damping blocks 63 to provide elastic force between the two damping blocks 63, the limiting block 622 of the slider 62 is limited in the limiting groove 612 of the fixing base 61, namely, is pressed and held in the limiting groove 612 by the limiting portion 613, the damping block 63 is matched with the groove 614 on the outer side surface of the limiting portion 613 of the fixing base 61 to provide interference force when the slider 62 moves.

The gear assembly comprises two gear assemblies 64 respectively hinged with the hinge parts 624 of the sliding blocks 62, and two second gear assembly assemblies 65 positioned between the two gear assemblies 64, the th gear assembly 64 comprises a 1 gear 642, a hinge end 643 extending from the outside of the th gear 642 and hinged with the hinge parts 624 through a rotating shaft, and a rotating shaft 641 fixed in the 5 th shaft hole 541 of the pair of fixed seats 61 with both ends respectively rotating, the second gear assembly 65 comprises a second gear 652 meshed with the th gear 642 and a second rotating shaft 651 fixed in the second shaft hole 55 with both ends respectively rotating, the

th gear

642, 652 of the gear assembly at least comprises four, a gear 642 hinged with the hinge parts 624 of the sliding blocks 61, a second gear 652 meshed with the th gear 642, another second gear 652 meshed with the second gear 652 and another gear 3637 hinged with the hinge parts 624 of the sliding blocks 3637 and hinged with another sliding block .

The four gears can be arranged to reduce the radius of each gear and the thickness of the synchronizing mechanism under the condition that the synchronizing mechanism is wider, and the gear assemblies can be arranged into six or eight gears to further reduce the thickness of the synchronizing mechanism by .

The gear rack 50 is fixed in the back cover cavity 22 of the back cover 20 by the fixing lug 52, the fixing seat 61 is fixed on the folding plate 10, the sliding block 62 is limited in the fixing seat 61 and can slide in the limiting groove 612 of the fixing seat 61, the gear assembly is fixed on the back cover 20 along with the gear rack 50 and is hinged with the sliding block 62 in rotation, when the and the

second folding plate

11, 12 are folded or unfolded, the gear assembly 64 is driven to rotate, the gear assembly 65 is matched with the gear assembly 64 to rotate, during rotation, the sliding block 62 slides relative to the fixing seat 61, the damping part 632 of the damping block 63 enters the second groove 614 from the th groove 614 on the limiting part 613, so that a strong retaining force is generated when the folding plate 10 starts to operate and finishes operating.

With continued reference to fig. 13, when the foldable display device is in the folded state, the two pairs of sliding bases 41 of the folding path control mechanism 40 slide out of the th and second arc-

shaped slots

32, 35 respectively in opposite directions until the gear 43 engages along the engaging space 413 of the sliding base 41 from the th end to the second end, the folding path control mechanism 40 controls the folding trajectory of the th and

second folding plates

11, 12 to conform to the folding performance of the foldable screen by the th and second arc-

shaped slots

32, 35 cooperating with the arc-shaped convex surface 411 of the sliding base 41, the

synchronization mechanism

50, 60 controls the th and

second folding plates

11, 12 to fold at the same speed, i.e., synchronizes the operating speeds of the th and

second folding plates

11, 12, thereby, the precise folding and unfolding operations of the foldable display device are achieved, and no mechanism damage caused by the th and

second folding plates

11, 12 operating states are not .

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

The synchronization mechanism is characterized by comprising a th folding plate, a second folding plate, a back cover, a gear carrier fixed on the back cover, a fixed seat fixed on the th folding plate and the second folding plate, a sliding block limited between the fixed seat and the folding plate, and a gear set limited on the gear carrier, wherein the gear set at least comprises two th gear assemblies meshed with each other, each th gear assembly comprises a th gear, a hinged end extending from the th gear and hinged with the sliding block in a rotating manner, and a rotating shaft limited in the gear carrier, the hinged ends of the two th gear assemblies are hinged with the sliding blocks on the th folding plate and the second folding plate respectively, and when the th folding plate and the second folding plate are actuated, the th gears of the two th gear assemblies are meshed with each other to rotate to control the rotating speeds of the th folding plate and the second folding plate.
2. The synchronizing mechanism according to claim 1, wherein the fixing seat includes a seat base fixed to the th or second folding plate, a position-limiting portion disposed on a side surface of the seat base , and a position-limiting groove disposed on a side surface of the seat base and below the position-limiting portion.
3. The synchronizing mechanism as claimed in claim 2, wherein the slider includes a slider body, a stopper formed to extend laterally outward from a bottom surface of the slider body, and a hinge portion provided on the slider body toward the gear assembly , wherein the stopper is retained in the retaining groove between the stopper and the or second folding plate.
4. The synchronous mechanism according to claim 3, wherein the slider further comprises a mounting hole transversely penetrating through the slider body, damping blocks are respectively mounted at two open ends of the mounting hole, a spring is arranged between the two damping blocks, at least two grooves are arranged on the side surface of the limiting portion, and the damping blocks and the grooves are matched to respectively correspond to the positions of the two states of unfolding and closing.
5. The synchronizing mechanism according to claim 3, wherein the number of the gear racks is two, each gear rack comprises a main body part fixed on the back cover, at least two th shaft holes formed transversely through the main body part in sequence in the length direction of the main body part, rotating shafts fixed with the th gear are arranged on pairs of shaft holes corresponding to the two gear racks in a penetrating manner.
6. The synchronizing mechanism according to claim 5, wherein the gear assembly further includes two second gear assemblies intermeshed and positioned between the two th gear assemblies, the second gear assemblies including two second gears intermeshed and positioned between the th gear and each intermeshed with an adjacent th gear.
7. The synchronizing mechanism according to claim 6, wherein the gear rack is provided with pairs of second shaft holes between the shaft holes, and the second gear is limited between the second shaft holes through a second rotating shaft.
8. The synchronizing mechanism according to claim 7, wherein the main body of the carrier has projections projecting upward from opposite lateral ends thereof, the th axial hole being formed in the projections, the second axial hole being formed in the main body, the th axial hole being different from the second axial hole in a level, the second axial hole being closer to the back cover.
9. The synchronizing mechanism according to claim 8, wherein the carriers further include a protector extending from an inner side of the body portion, the protector includes an -th protector located below the second shaft hole and a second protector located below the -th shaft hole, and the -th protector and the second protector of each carrier respectively protect -th -th gears and -th gears.
A foldable display device of , comprising a synchronizing mechanism as claimed in any of claims 1-9, a foldable screen attached to the side of said foldable plate facing away from said back cover , and a folding path control mechanism.
Communications equipment of the type 11, , comprising a synchronization mechanism of any of claims 1-9 through .