CN212305396U

CN212305396U - Hinge length adjusting device of folding screen terminal and folding screen terminal

Info

Publication number: CN212305396U
Application number: CN202021478482.9U
Authority: CN
Inventors: 许超
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-01-05
Anticipated expiration: 2030-07-23

Abstract

The application provides a hinge length adjusting device of a folding screen terminal and the folding screen terminal, wherein the hinge length adjusting device is arranged between a screen fixing plate and a hinge side plate of the folding screen terminal, and the adjusting device comprises a follower, a pushed piece and a transmission piece; the follower is arranged on a middle plate, the middle plate can rotate relative to the hinge side plate, the follower is provided with a pushing part, and the middle plate drives the follower to move so as to drive the pushing part to move towards or away from the pushed piece; the pushed part comprises a pushed part, and the pushed part corresponds to the pushing part and drives the pushed part to move by the movement of the follower; the input end of the transmission part is in transmission connection with the pushed part, the output end of the transmission part is connected with the screen fixing plate, and the transmission part is moved and transmitted to the transmission part through the pushed part, so that the hinge side plate is driven to move towards or away from the screen fixing plate.

Description

Hinge length adjusting device of folding screen terminal and folding screen terminal

Technical Field

The application relates to a folding screen terminal technology, in particular to a hinge length adjusting device of a folding screen terminal and the folding screen terminal.

Background

Almost all large mobile phone manufacturers are vigorously researching and developing folding smart phones since the release of the three-star second-generation folding mobile phones and the folding mobile phones of Mate X, wherein the folding mobile phone has the highest difficulty and the highest technical content and belongs to the folding hinge mechanism.

When the folding mobile phone is unfolded and folded, the length requirement of the mobile phone screen is always kept unchanged, and the mobile phone screen cannot be drawn or pressed, which is determined by the characteristics of the screen. The folding hinge is arranged below the screen of the mobile phone, the length of the folding hinge is shorter than that of the folding hinge in the unfolding state (for the mobile phone with the outer folding screen), otherwise, the problem that the hinge mechanism pulls the screen occurs.

Therefore, in the process of rotating the folding hinge, a mechanism for continuously and stably ensuring the length synchronous change of the folding hinge is a difficult point of folding mobile phone design, and although the mechanism is generally realized through a multi-link mechanism in the prior art, the existing multi-link mechanism has complicated parts, and after the mechanism is worn for a long time, the problem of unsmooth follow-up is easily caused due to the poor matching between parts.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem of length compensation of a hinge of a folding screen terminal in the prior art, the application provides a hinge length adjusting device of the folding screen terminal and the folding screen terminal, wherein the hinge length adjusting device can continuously and stably compensate the length change of the hinge.

In a first aspect, the present application provides a hinge length adjusting device of a folding screen terminal, disposed between a screen fixing plate and a hinge side plate of the folding screen terminal, the adjusting device including a follower, a pushed piece, and a transmission piece; the follower is arranged on a middle plate, the middle plate can rotate relative to the hinge side plate, the follower is provided with a pushing part, and the middle plate drives the follower to move so as to drive the pushing part to move towards or away from the pushed piece; the pushed part comprises a pushed part, and the pushed part corresponds to the pushing part and drives the pushed part to move by the movement of the follower; the input end of the transmission part is in transmission connection with the pushed part, the output end of the transmission part is connected with the screen fixing plate, and the transmission part is moved and transmitted to the transmission part through the pushed part, so that the hinge side plate is driven to move towards or away from the screen fixing plate.

According to an embodiment of the present application, the angular movement of the follower drives the pushed element to move in the axial direction of the angular movement.

According to an embodiment of the application, the follower comprises a guide groove and an arc-shaped plate which slides in the guide groove at an inner corner, and the pushing portion of the arc-shaped plate is a chamfered edge corresponding to one side of the pushed portion, so that the pushed portion is pushed.

According to an embodiment of the application, the pushed part of the pushed part extends into the guide groove, and the pushed part is pushed by the pushing part to slide in the guide groove.

According to an embodiment of the application, the pushed member includes a pushed plate and an engaging plate connected to each other, the open end of the pushed plate is the pushed portion, and the engaging plate includes an engaging portion corresponding to the transmission member, so as to engage and transmit with the transmission member.

According to an embodiment of the application, the input end of the transmission member comprises a rack-and-pinion cooperating transmission mechanism, and/or the output end of the transmission member comprises a screw transmission mechanism.

According to an embodiment of the application, the driving medium includes gear, shaft spare and lead screw, the gear is fixed in shaft spare one end, the lead screw cisoid set up in the shaft spare other end.

According to an embodiment of the application, the axial direction of the transmission member is perpendicular to the moving direction of the pushed member.

According to an embodiment of the application, the folding screen terminal comprises two groups of adjusting devices which are respectively arranged between the screen fixing plate and the hinge side plate on two sides of the folding screen terminal.

In a second aspect, the present application provides a folding screen terminal including the hinge length adjustment apparatus of the folding screen terminal as described above.

According to an embodiment of the application, the screen fixing plate comprises a screen fixing plate, a flexible screen and a hinge assembly, wherein two ends of the flexible screen are respectively fixed on two screen fixing plates at two ends, and the hinge assembly comprises two hinge side plates at two ends and a plurality of middle plates at the middle part.

According to an embodiment of the application, the hinge assembly further comprises a synchronizing assembly, wherein two ends of the synchronizing assembly are respectively fixed on the two screen fixing plates so as to synchronize the two screen fixing plates to move in a rotating angle relative to the hinge assembly.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

for the not good problem of stability that the hinge length compensation mechanism who solves prior art folding screen terminal exists, mainly be in this application embodiment, utilize the rotary motion between hinge intermediate lamella and the sideboard to convert into length compensation's power, the relative screen fixed plate of sideboard is driven to the rethread promotion driving medium and is removed to adjust distance between the two, so realize screen position compensation adjustment at the hinge both ends. The adjusting device may mainly comprise a follower for acquiring the angular movement, a pushed member for transmitting the action of the follower to the transmission member, and a transmission member for finally converting the rotational movement into a change in the distance between the edge plate and the screen fixing plate. The hinge length compensation can be completed by only three main parts, and the number of matched parts is less.

In the process of rotating the folding hinge, the driving part is used for realizing continuous and stable movement adjustment, so that the mechanism for ensuring the synchronous change of the length of the folding hinge is smaller in movement clearance and fewer in parts compared with a multi-connecting-rod compensation mechanism.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a hinge length adjusting device of a folding screen terminal according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an exploded view of a hinge length adjustment device of a folding screen terminal according to an embodiment of the present disclosure.

Fig. 4 is a schematic exploded structural diagram of a folding screen terminal according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a screen fixing plate according to an embodiment of the present application.

Description of reference numerals:

a screen fixing plate 1; a chute 11; a screw hole 12; a track groove 13; a hinge side plate 2; an adjusting device 3; a follower 31; a pushing portion 311; a guide groove 312; an arc-shaped plate 313; an arcuate plate 314; a pushed piece 32; a pushed portion 321; a pushed plate 322; an engaging plate 323; the engaging portion 324; a transmission member 33; a gear 331; the shaft member 332; a lead screw 333; a first intermediate plate 41; a second partition plate 42; a second partition plate 43; a fourth partition plate 44; a fifth intermediate plate 45; the synchronization component 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For the not good problem of stability that the hinge length compensation mechanism who solves prior art folding screen terminal exists, mainly be in this application embodiment, utilize the rotary motion between hinge intermediate lamella and the sideboard to convert into length compensation's power, the relative screen fixed plate of sideboard is driven to the rethread promotion driving medium and is removed to adjust distance between the two, so realize screen position compensation adjustment at the hinge both ends. The adjusting device may mainly comprise a follower for acquiring the angular movement, a pushed member for transmitting the action of the follower to the transmission member, and a transmission member for finally converting the rotational movement into a change in the distance between the edge plate and the screen fixing plate. The hinge length compensation can be completed by only three main components, and the number of components matched in a transmission way is less.

The following description of specific embodiments of the present application is provided for illustration in the accompanying drawings:

fig. 1 is a schematic structural diagram of a hinge length adjusting device of a folding screen terminal according to an embodiment of the present disclosure, fig. 2 is an enlarged structural diagram of a point a in fig. 1, and fig. 3 is a schematic structural diagram of an exploded component of the hinge length adjusting device of the folding screen terminal according to an embodiment of the present disclosure.

The embodiment of the application provides a hinge length adjusting device at a folding screen terminal, which is arranged between a screen fixing plate 1 and a hinge side plate 2 at the folding screen terminal, and the adjusting device 3 mainly comprises a follower 31, a pushed piece 32 and a transmission piece 33.

The follower 31 is selectively disposed on one of the middle plates, the middle plate can rotate relative to the hinge side plate 2, the follower 31 has a pushing portion 311, and the middle plate drives the follower 31 to move, so as to drive the pushing portion 311 to move towards or away from the pushed piece 32. The pushed part 32 comprises a pushed part 321, and the pushed part 321 corresponds to the pushing part 311, so that the follower 31 moves to drive the pushed part 32 to move. The input end of the transmission member 33 is connected to the pushed member 32 in a transmission manner, the output end of the transmission member 33 is connected to the screen fixing plate 1, and the pushed member 32 moves and transmits to the transmission member 33, so that the hinge side plate 2 is driven to move towards or away from the screen fixing plate 1. Therefore, the hinge side plates 2 at the two ends of the screen synchronously move inwards or outwards, so that the dynamic compensation of the screen fixed on the hinge side plates in the length direction is realized, and the problem of stress concentration is avoided.

In the embodiment, in the rotating process of the folding hinge, the driving part is used for realizing continuous and stable movement adjustment, so that the mechanism for ensuring the synchronous change of the length of the folding hinge is smaller in movement clearance and fewer in parts compared with a multi-connecting-rod compensation mechanism.

Referring to fig. 3, according to the embodiment of the present application, the pushed element 32 is moved in the direction of the rotation axis X of the angular movement in the direction of the angular movement R of the follower 31. The conversion of a primary motion mode is realized to convert the rotary motion into the linear motion, so that the subsequent transmission parts can be converted and utilized.

In this embodiment, the length of the compliantly adaptable hinge assembly in the folded and unfolded states can be varied in length by selecting the ratio of the input to output of the transmission 33.

According to the embodiment of the present application, the follower 31 mainly includes a guide groove 312 and an arc plate 313 sliding in the guide groove 312 at an inner corner, and the pushing portion 311 of the arc plate 313 is a chamfered edge corresponding to one side of the pushed portion 321, so as to push the pushed portion 321. It is understood that the guide slot 312 may be formed between two arcuate plates 314. The guide limiting mechanism of the hinge can be realized, and the output of compensation power can also be realized.

The combination of the follower 31 and the two curved plates 314 may be in the form of a mechanism for limiting the angular movement between two generally intermediate plates, with the difference that the push portion 311 is formed by a chamfer so that the pushed portion 321 of the pushed member 32 extends into engagement. It will be understood by those skilled in the art that the chamfered edge of the pushing portion 311 and the chamfered edge of the pushed portion 321 are matched with each other, and both may be chamfered at an angle of 45 degrees, so as to achieve a better push-fit manner.

According to the embodiment of the present application, the pushed portion 321 of the pushed member 32 extends into the guide groove 312, and the pushed portion 321 is pushed by the pushing portion 311 to slide in the guide groove 312. The pushed part 32 can also realize the sliding limit by the guide groove 312.

According to the embodiment of the present application, the pushed member 32 includes a pushed plate 322 and an engaging plate 323, the pushed plate 322 has an open end as the pushed portion 321, and the engaging plate 323 includes an engaging portion 324 corresponding to the transmission member 33, so as to engage with the transmission member 33 for transmission.

According to the embodiment of the present application, the input end of the transmission member 33 includes a rack-and-pinion-matched transmission mechanism, and/or the output end of the transmission member 33 includes a screw transmission mechanism. According to the embodiment of the present application, the transmission member 33 includes a gear 331, a shaft 332 and a screw 333, the gear 331 is fixed at one end of the shaft 332, and the screw 333 is disposed at the other end of the shaft 332 in a forward direction. The direction of the rotation axis Y of the transmission member 33 is perpendicular to the moving direction X of the pushed member 32. The input end is selected to be in meshing transmission with the pushed part 32 through a gear structure, the gear structure and the pushed part 32 can have a first transmission ratio, and the first transmission ratio can be selected to be a transmission ratio of 1 to 1. And the output end is selected as a screw 333 and a screw hole 12 (see fig. 5) correspondingly engaged on the screen fixing plate 1, and a second transmission ratio between the ball-type screw 333 and the screw hole 12 is smaller than the first transmission ratio.

In an alternative embodiment, the threads on the lead screw 333 may also be selected in a non-equidistant arrangement, such as a gradual increase in pitch from the open end to the geared end, to accommodate different offset distance requirements of the hinge assembly from the initial stage to the final folding stage. That is, it is possible to realize a stepwise increase in the moving speed ratio of the hinge side plate 2 in the Y direction. This embodiment is optionally implemented according to the structural requirements of the hinge assembly, such as 3 to 1. To better accommodate situations where the hinge assembly rotation is not the same as the screen length compensation displacement requirements.

A pair of lugs 21 may be disposed on the hinge side plate 2 to rotatably fix the driving member 33, and the shaft member 332 may be selectively inserted into the corresponding insertion holes disposed on the lugs 21 to achieve the assembling fixation.

According to the embodiment of the application, the folding screen terminal comprises two groups of adjusting devices 3 which are respectively arranged between the screen fixing plate 1 and the hinge side plate 2 on two sides of the folding screen terminal.

Fig. 4 is an exploded structural schematic view of a folding screen terminal according to an embodiment of the present disclosure, and fig. 5 is a structural schematic view of a screen fixing plate according to an embodiment of the present disclosure.

The embodiment of the application also provides a folding screen terminal, mainly includes screen fixed plate 1, flexible screen and hinge subassembly, two at both ends are fixed in respectively at flexible screen both ends screen fixed plate 1, the hinge subassembly includes two hinge sideboard 2 at both ends and a plurality of intermediate lamella at middle part. The hinge assembly is characterized by further comprising a synchronizing assembly 5, wherein two ends of the synchronizing assembly are respectively fixed on the two screen fixing plates 1, so that the two screen fixing plates 1 can synchronously move relative to the hinge assembly in a rotating angle mode.

In the embodiment of the present application, the foldable hinge assembly mainly includes a first middle plate 41, a second middle plate 42, a second middle plate 43, a fourth middle plate 44, a fifth middle plate 45, two left and right hinge side plates 2, a screen fixing plate 1, an adjusting device 3, a synchronizing assembly 5, and other components.

The flexible screen can be a flexible foldable screen and is arranged on the outermost side of the terminal, and when the whole terminal is folded, the screen is still arranged on the outermost side (not shown in the attached drawings).

The screen fixing plate 1 is arranged at the bottom of the flexible screen and fixedly connected with the flexible screen, relative movement cannot occur, and the screen fixing plate 1 is used for supporting the screen and simultaneously driving the screen to move together.

The first middle plate 41, the second middle plate 42, the second middle plate 43, the fourth middle plate 44, the fifth middle plate 45, the left hinge side plate 2, the right hinge side plate 2 and the screen fixing plate 1 are all placed below a mobile phone screen and are located on the same plane, a supporting effect can be achieved on the screen, and the screen is prevented from being sunken when a finger presses the screen.

The left hinge side plate and the right hinge side plate 2 are slidably inserted into the sliding groove 11 of the screen fixing plate 1 through the outer side plate to be matched, so that the limiting sliding between the two can be realized.

The gears of the synchronous component 5 can mainly comprise transverse plates which can extend into the corresponding track grooves 13 of the screen fixing plate 1, when the screen and the screen fixing plate are folded together, the transverse plates are driven, and the transverse plates are provided with gear sets to rotate, so that the left side and the right side can be synchronously folded and rotated; since the specific structure of the synchronization module 5 is clearly shown in the drawings, it is obvious for those skilled in the art to understand and reproduce the structure and function thereof, and not the technical modification point of the present application, and therefore, the detailed description is omitted here.

An arc-shaped shell can be arranged between every two adjacent middle plates, the adjacent middle plates are provided with corresponding track grooves, and the motion tracks of the folding hinges are controlled by matching the arc-shaped shells and the track grooves; the middle plate and the screen side plate 2 are matched with the track groove through the wedge-shaped arc shell, so that the motion tracks of the side plates at two sides are ensured.

The wedge-shaped arc shells of the wedge arc plate and the middle plate are simultaneously arranged in the arc track groove of the left screen side plate 2 and are in surface contact with each other, the other side of the wedge arc plate is provided with a rack feature, the rack is meshed with a gear arranged on the left side plate, the other end of the gear shaft is provided with a ball screw, and the ball screw is matched with a corresponding screw groove in the screen supporting plate; when moving to fold condition by the expansion state, relative motion takes place for left screen sideboard 2 and intermediate lamella, the convex track inslot of the convex casing of wedge of intermediate lamella left side moves, wedge circular arc board receives the convex casing of wedge at axial promotion this moment, just along axial motion, drive the rack motion of opposite side simultaneously, rack drive installs the gear shaft motion in left screen sideboard 2, the gear shaft just drives ball and rotates, ball changes and drives the screen fixed plate and move to folding mechanism center.

Because the ball screw mechanism has motion reversibility, the length of the screen can still be reversely compensated when the ball screw mechanism moves from a folding state to an unfolding state, and the description is omitted; on the other hand, the elastic reset function of the screen can be utilized to realize reset, and when the folded state moves to the unfolded state, the elasticity of the screen can push the screen fixing plate to move outwards, so that compensation is realized.

Of course, it is also possible to alternatively provide a reverse adjustment device to compensate for the movement of the screen from the folded state to the unfolded state.

The proposal only introduces the motion principle and the realization scheme of the folding structure at one side, and the other part is symmetrical to the part in structure and has the same principle, so the description is omitted.

The patent of the utility model provides a synchronous outer folding scheme based on ball motion process compensating mechanism, folding orbit mechanism mainly realizes through slide wedge circular arc orbit groove, and synchronizing mechanism mainly realizes through gear engagement, and compensating mechanism mainly realizes through ball, can enough satisfy the basic function of folding hinge, can guarantee the length synchro variation of continuous stable assurance folding hinge simultaneously.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hinge length adjusting device of a folding screen terminal is arranged between a screen fixing plate (1) and a hinge side plate (2) of the folding screen terminal, and is characterized in that the adjusting device (3) comprises a follower (31), a pushed piece (32) and a transmission piece (33);

the follower (31) is arranged on a middle plate of the hinge, the middle plate can rotate relative to the hinge side plate (2), the follower (31) is provided with a pushing part (311), and the middle plate drives the follower (31) to move so as to drive the pushing part (311) to move towards or away from the pushed piece (32);

the pushed piece (32) comprises a pushed part (321), and the pushed part (321) corresponds to the pushing part (311) and drives the pushed piece (32) to move by the movement of the follower (31);

the input end of the transmission piece (33) is in transmission connection with the pushed piece (32), the output end of the transmission piece (33) is connected with the screen fixing plate (1), and the transmission piece (32) moves to the transmission piece (33) through transmission, so that the hinge side plate (2) is driven to move towards or away from the screen fixing plate (1).

2. The hinge length adjusting apparatus of a folding screen terminal according to claim 1, wherein the angular movement of the follower (31) moves the pushed member (32) in a direction of a rotation axis of the angular movement.

3. The hinge length adjusting apparatus of a folding screen terminal according to claim 1, wherein the follower (31) comprises a guide groove (312) and an arc plate (313) which is slid at a corner in the guide groove (312), and the pushing portion (311) of the arc plate (313) is a chamfered edge corresponding to a side of the pushed portion (321) to push the pushed portion (321).

4. The hinge length adjusting apparatus of a folding screen terminal according to claim 3, wherein the pushed portion (321) of the pushed member (32) is extended into the guide groove (312), and the pushed portion (321) is pushed by the pushing portion (311) to slide in the guide groove (312).

5. The hinge length adjusting apparatus of a folding screen terminal according to claim 1, wherein said pushed member (32) comprises a pushed plate (322) and an engaging plate (323) connected, said pushed plate (322) having an open end as said pushed portion (321), said engaging plate (323) comprising an engaging portion (324) corresponding to said transmission member (33) to be engaged with said transmission member (33) for transmission.

6. Hinge length adjustment device of a folding screen terminal according to claim 1, characterized in that the input end of the transmission member (33) comprises a rack and pinion co-operating transmission mechanism and/or the output end of the transmission member (33) comprises a ball screw transmission mechanism.

7. The hinge length adjusting apparatus of a folding screen terminal according to claim 6, wherein the transmission member (33) comprises a gear (331), a shaft member (332), and a lead screw (333), the gear (331) is fixed to one end of the shaft member (332), and the lead screw (333) is forwardly disposed at the other end of the shaft member (332).

8. The hinge length adjusting apparatus of a folding screen terminal according to claim 6, wherein the direction of the axis (Y) of the transmission member (33) and the moving direction of the pushed member (32) are perpendicular to each other.

9. The hinge length adjusting device of a folding screen terminal according to any one of claims 1 to 8, comprising two sets of the adjusting devices (3) respectively disposed between the screen fixing plate (1) and the hinge side plate (2) at both sides of the folding screen terminal.

10. A folding screen terminal, characterized by comprising a hinge length adjusting device (3) of the folding screen terminal according to any one of claims 1 to 9.

11. A folding screen terminal according to claim 10, comprising a screen fixing plate (1), a flexible screen fixed at both ends to two of the screen fixing plates (1) at both ends, respectively, and a hinge assembly including two hinge side plates (2) at both ends and a plurality of middle plates at a middle portion.

12. The folding screen terminal of claim 11, further comprising a synchronizing assembly (5), wherein both ends of the synchronizing assembly (5) are respectively fixed to the two screen fixing plates (1) to synchronize the angular movement of the two screen fixing plates (1) with respect to the hinge assembly.