CN110770814A

CN110770814A - Folding mechanism and terminal

Info

Publication number: CN110770814A
Application number: CN201780092147.XA
Authority: CN
Inventors: 张强
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2017-08-03
Filing date: 2017-08-03
Publication date: 2020-02-07
Anticipated expiration: 2037-08-03
Also published as: CN110770814B; WO2019024046A1

Abstract

A folding mechanism and a terminal comprising the folding mechanism are provided, the folding mechanism is applied to the terminal with a flexible screen and comprises a first support body (11), a second support body (12) and a bending part (15), and the bending part (15) is connected between the first support body (11) and the second support body (12) so as to realize the turnover of the first support body (11) relative to the second support body (12); the bending part (15) comprises a positioning rotating part (17) and a hinged rotating part (16) connected between the first supporting body (11) and the second supporting body (12), the hinged rotating part (16) comprises a plurality of hinged rods (163), the outer side faces of the hinged rods (163) jointly form a bearing face (160) opposite to the bending direction, the hinged rods (163) are connected to the positioning rotating part (17) side by side in sequence, the length of the positioning rotating part (17) in the bending process is unchanged, and the hinged rotating part (16) bends along with the positioning rotating part (17), so that the length of the bent bearing face (160) is equal to the length of the bearing face (160) in the flattening process.

Description

Folding mechanism and terminal

Technical Field

The invention relates to the technical field of terminal equipment, in particular to a folding mechanism and a terminal.

Background

In order to improve the operation performance and the viewing performance of the existing part of mobile phones or notebook computers, full screen setting is adopted, for example, the notebook computer comprises two parts of main bodies which are connected in a rotating shaft mode to realize folding and unfolding, and screens are also respectively arranged on the two parts of main bodies for operation and display.

Disclosure of Invention

The embodiment of the invention provides a folding mechanism capable of realizing screen bending and a terminal.

The folding mechanism is applied to a terminal with a flexible screen, and comprises a first support body, a second support body and a bending part, wherein the bending part is connected between the first support body and the second support body so as to realize the folding of the first support body relative to the second support body;

the bending part comprises a positioning rotating part and a hinged rotating part connected between the first supporting body and the second supporting body, the hinged rotating part comprises a plurality of hinged rods, the outer side surfaces of the hinged rods jointly form a bearing surface for bearing the flexible screen, the hinged rods are sequentially connected with the positioning rotating part side by side,

the length of the positioning rotating piece in the bending process is unchanged, and the hinged rotating piece bends along with the positioning rotating piece, so that the length of the bent bearing surface is equal to the length of the bearing surface when the bearing surface is unfolded.

The terminal comprises the folding mechanism and the flexible screen, wherein the flexible screen is fixed on the first supporting body and the second supporting body, and the bearing surface faces to the bending area of the flexible screen.

According to the folding mechanism, the positioning rotating piece with the unchanged length is used for driving the hinged rotating piece to bend, so that the length of the bearing surface for bearing the flexible screen after the hinged rotating piece is bent is equal to the length of the bearing surface when the hinged rotating piece is unfolded, the bending area of the flexible screen fixed on the folding mechanism is not stretched by the bending part of the folding mechanism during bending, namely, the flexible screen is not stretched by external force, and the flexible screen is prevented from being damaged.

Drawings

In order to more clearly illustrate the technical solutions in 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 only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a side view of a folding mechanism provided by the present invention.

Fig. 2 is a schematic top view of a folding mechanism according to an embodiment of the invention.

Fig. 3 is a side schematic view of the folding mechanism shown in fig. 2.

Fig. 4 is a partially enlarged view of the folding mechanism shown in fig. 3.

Fig. 5 is a schematic cross-sectional view of the folding mechanism shown in fig. 3.

Fig. 6 is a partially enlarged view of the folding mechanism of fig. 5.

Fig. 7 is a schematic view of the positioning rotating member of the bending portion of the folding mechanism shown in fig. 2.

Fig. 8 is an enlarged view of a portion of the folding mechanism shown in fig. 3.

Fig. 9 is a side view of the folding mechanism shown in fig. 3 in a folded state.

Fig. 10 is a cross-sectional view of the folding mechanism shown in fig. 3 in a folded state.

Fig. 11 is a schematic view of a terminal of the present invention, wherein the terminal includes the folding mechanism shown in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The embodiment of the invention provides a folding mechanism and a terminal with the same. The folding mechanism supports the flexible screen of the terminal. The terminal can be a tablet Computer, a mobile phone, a flexible display, an electronic reader, a remote controller, a Personal Computer (PC), a notebook Computer, a vehicle-mounted device, a network television, a wearable device, and the like. In the embodiment, a tablet computer is taken as an example for description.

Referring to fig. 1, the folding mechanism includes a first supporting body 11, a second supporting body 12 and a bending portion 15. The bending portion 15 is connected between the first supporting body 11 and the second supporting body 12, so as to turn the first supporting body 11 over relative to the second supporting body 12. The bending portion 15 includes a positioning rotation member 17 and a hinge rotation member 16 connected between the first supporting body 11 and the second supporting body 12.

The hinged rotating member 16 comprises a plurality of hinged rods 163, the outer side surfaces of the hinged rods 163 jointly form a bearing surface 160 for bearing the flexible screen, and the hinged rods 163 are sequentially connected to the positioning rotating member 17 side by side. As shown in fig. 2, a gap is provided between any two of the hinge levers 163 of the plurality of hinge levers 163. The length of the positioning rotation member 17 is not changed during the bending process, the gap is reduced along with the bending of the positioning rotation member 17 by the hinge rotation member 16, and the total length of the bearing surface 160 is not changed, so that the length of the bent bearing surface 160 is equal to the length of the bearing surface 160 during flattening.

Folding mechanism through unchangeable location rotation piece 17 of length drives when buckling articulated rotation piece 16 is buckled and is made individual articulated pole 163 draw close each other, makes loading end 160 buckle and not tensile, so that the length of loading end 160 after articulated rotation piece 16 buckles equals the length of loading end 160 when articulated rotation piece 16 is opened flat, and then makes the flexible screen that is fixed in this folding mechanism buckle regional not stretched by folding mechanism's kink when buckling, can not receive external force stretching promptly, avoids damaging the flexible screen.

In the embodiment of the present invention, the bearing surface 160 is formed by a plurality of outer side surfaces sequentially arranged along a first direction, the first direction is a direction in which the hinge rotating member 16 extends from the second supporting body 12 to the first supporting body 11, and the bearing surface 160 is connected between the second supporting body 12 and the first supporting body 11.

In this embodiment, the hinge rod 163 is a long rod body, which includes the outer side surface, i.e. the surface opposite to the bending direction and the inner side surface 1632 opposite to the outer side surface, and the width of the outer side surface is smaller than the width of the inner side surface, so that the cross section of the hinge rod 163 is substantially isosceles trapezoid, the outer side surface is the upper bottom edge of the trapezoid, and the inner side surface 1632 is the lower bottom edge of the trapezoid. The hinge rods 163 are arranged side by side, and the gap is formed between two adjacent hinge rods. When the bearing surface 160 is bent into an arc shape, the inner side surfaces of the plurality of bearing surfaces are mutually connected to form an arc-shaped connecting surface, and the length of the connecting surface in the bent state is smaller than that in the flattened state.

Referring to fig. 2 and 3, in the embodiment of the present invention, a linkage portion is connected between any two of the hinge rods 163, and the linkage portion is configured to implement a relative movement between the two hinge rods 163, where the movement includes a rotation and a sliding.

Specifically, referring to fig. 4, 5 and 6, a gap S is formed between any two of the hinge rods 163. Each hinge rod 163 includes the outer side surface 1631 and the inner side surface 1632 opposite to the outer side surface 1631, and the width of the gap S gradually decreases from the inner side surface 1632 to the bearing surface 160. In this embodiment, the plurality of hinge levers 163 are independently provided. The gaps S are also spaced every two outer side faces 1631. In other embodiments, the plurality of hinge arms 163 may be integral and may be movably connected by the outer side surfaces 1631, such that the gap S does not extend through both outer side surfaces. When the hinge rotating member 16 is bent, the plurality of hinge rods 163 move closer to each other, and the gap S is reduced. The outer side surfaces 1631 are sequentially adjacent to and connected with the hinge rod 163 to form an arc-shaped bearing surface. When the folding mechanism is unfolded, the hinged rotation member 16 is fully unfolded and the plurality of outer side surfaces 1631 are coplanar to form a planar bearing surface 160, as shown in fig. 9.

In this embodiment, the width of the outer side surface 1631 is smaller than the width of the inner side surface 1632, so that the cross section of the hinge rod 163 is substantially isosceles trapezoid, the outer side surface 1631 is the upper bottom edge of the trapezoid, and the inner side surface 1632 is the lower bottom edge of the trapezoid. Each hinge rod 163 includes two opposing side surfaces 1633 connecting the lateral side surface 1631 and the medial side surface 1632. The plurality of hinged rods 163 are arranged side by side and are sequentially and movably connected, and the gap S is formed between the side surfaces of two adjacent hinged rods 163. The inner side surfaces 1632 are coplanar to form a connecting surface 161, when the bearing surface 160 is bent to be arc-shaped, the inner side surfaces are mutually connected to form the arc-shaped connecting surface 161, and the length of the connecting surface 161 in the bent state is smaller than that in the flattened state. As shown in fig. 9.

Referring to fig. 5, fig. 6 and fig. 8, in the present embodiment, each of the linkage portions includes a hinge block 167, a hinge seat 168 and a positioning pin 166, a sliding slot 165 is disposed on the hinge block 167, the positioning pin 166 passes through the sliding slot 165 to connect the hinge block 167 to the hinge seat 168 and can rotate in the sliding slot 165, and a gap S between each two hinge rods 163 is reduced, so that the hinge block 167 and the hinge seat 168 move relatively to drive the positioning pin 166 to slide in the sliding slot 165. In this embodiment, the positioning pins 166 connecting all the linkage portions of the hinge lever 163 slide in the same direction, so as to ensure that the bearing surface 160 is not stretched when the hinge rotating members 16 are bent. Of course, the sliding direction of the positioning pin 166 may be different according to the force applied during bending.

The sliding slot 165 includes a first end 1651 and a second end 1652 opposite to the first end 1651, when the bending portion 15 is in a flattened state, the positioning pin 166 is located at the first end 1651, when the bending portion 15 is bent, the plurality of hinge rods 163 approach each other, and the positioning pin 166 slides in the sliding slot 165 to the second end 1652. During the bending of the hinge rotating member 16, the positioning pin 166 slides in the sliding slot 165, and the sliding slot 165 rotates relative to the positioning pin 166, so that each hinge rod 163 can generate a rotational displacement to bend the whole hinge rotating member 16, as shown in fig. 10.

In the present embodiment, as shown in fig. 6, a side surface 1633 of each of the hinge rods 163 except for one hinge rod 163 connected to the first support body 11 is provided with the hinge block 167 in a protruding manner, and the hinge block 167 is located in the middle of the side surface 1633 of the hinge rod 163 and extends along the axial direction of the hinge rod 163, where the axial direction refers to the extending direction of the hinge rod. The hinge blocks 167 of the plurality of hinge rods 163 are oriented in the same direction, and the slide groove 165 penetrates the hinge rods 163 in the axial direction of the hinge rods 163.

Each of the hinge rods 163 except for one hinge rod 163 connected to the second support 12 is provided with a hinge seat 168, the hinge seat 168 of each linkage portion a is disposed opposite to the hinge block 167, the hinge seat 168 includes two seat bodies 1681 arranged at intervals, the hinge block 167 is located between the two seat bodies 1681, and the hinge seat 168 is provided with a mounting hole 169 for fixing the positioning pin 166 along the axial direction of the hinge rod 163. The seats 1681 are located at two ends of one side 1633 of the hinge rod 163. It is understood that the hinge block 167 and the hinge seat 168 may be connected to the hinge rod 163 by welding or the like.

Specifically, when any two adjacent hinge levers 163 are connected by the linking portion, starting with the hinge lever 163 mounted on the second support body 12 as the first, the first hinge lever 163 is provided with the hinge block 167, and the positioning pin 166 is fixed to the hinge seat 168 of the second hinge lever 163 adjacent to the first hinge lever 163 through the sliding groove 165 of the hinge block 167. The second of the detent pins 166 passes through the sliding groove 165 of the second hinge lever 163 and is fixed to the hinge base 168 of the third hinge lever 163 adjacent to the second hinge lever 163, and so on until the last two hinge levers 163 are connected by the detent pin 166, and one side 1633 of the last hinge lever 163 is fixedly connected to the side of the first support rod 11.

It can be understood that the side 1633 of the hinge rod 163 connected to the first support 11 is provided with the hinge block 167, the side 1633 of the hinge rod 163 is connected to the first support 11 and the hinge block seat 168 is connected to the first support 11, specifically, the hinge block 168 is partially embedded in the first support 11, so as to enhance the connection stability of the hinge rotating component 16 and the first support. The other side 1633 of the hinge rod 163 connected to the second supporting body 12 is provided with the hinge seat 168, the other side of the hinge rod 163 is connected to the second supporting body 12, and the hinge seat of the other side is inserted into the second supporting body 12; thereby enhancing the stability of the connection of the hinge-rotating member 16 to the second supporting body 12.

As shown in fig. 3, in the present embodiment, each of the hinge rods 163 is connected to the positioning rotating member 17 by a pin 170, and the pin 170 does not intersect with the bearing surface 160. In this embodiment, the hinge rod 163 includes end surfaces connecting the outer side surface 1631 and the inner side surface 1632 and two side surfaces 1633. The number of the positioning rotation pieces 17 is two, one end face 1633 of the plurality of hinge rods 163 facing the same direction is connected with one positioning rotation piece 17 through a pin, and the other end face 1633 of the plurality of hinge rods 163 facing the same direction is connected with the other positioning rotation piece 17 through a pin. And the positioning rotation component 17 is fixedly connected to a position of the end surface of each hinge rod 163, which is close to the outer side surface 1631, so as to ensure that the control bearing surface 160 is not stretched when the hinge rods 163 rotate. Of course, the positioning rotation member 17 may be one, and is embedded in the middle of the plurality of hinge rods 163, and the position of the linkage portion is correspondingly adjusted at this time, as long as the positioning rotation member 17 can limit the displacement of the hinge rods 163.

Referring to fig. 7, in this embodiment, the positioning rotating member 17 includes n connecting plates 171, each connecting plate 171 is a strip-shaped sheet, the n connecting plates 171 are rotatably connected in a chain manner, a rotating position B is formed at a joint of any two connecting plates 171, a fixing position C is arranged at a free end of each connecting plate 171 at two ends of the chain, and the rotating position B and the two fixing positions C are both connected with the pin 170 connected with the hinge rod 163

Specifically, in the first direction, one end of the first connecting piece 171 is rotatably connected to one end of the second connecting piece 171, and the other end of the second connecting piece 171 is connected to one end of the third connecting piece 171 until being connected to one end of the last connecting piece 171. In this embodiment, the rotation position B of every two connecting pieces 171 is fixedly connected to one hinge rod 163, and the fixing positions C of the connecting pieces 171 at both ends of the chain are fixed to the first supporting body 11 and the second supporting body 12. When the positioning rotation member 17 is bent by an external force, the plurality of connecting pieces 171 rotate to make the positioning rotation member 17 form an arc shape, but the connecting pieces 171 do not deform, so that the plurality of hinge rods 163 are pulled to move to be close to each other when the positioning rotation member 17 is bent, the gap S becomes small, the positioning pin 166 slides in the sliding groove 165, and the plurality of outer side surfaces 1631 are close to and connected to form the arc-shaped bearing surface 160.

Referring to fig. 2 again, in the embodiment, the first supporting body 11 and the second supporting body 12 are rectangular hollow shells, or may be plate bodies, and the interiors of the first supporting body 11 and the second supporting body 12 may be used for accommodating a power supply and a circuit board lamp device. In this embodiment, a power supply is provided in the first support 11 or the second support 12; a circuit board connected with a power supply is arranged in the second support body 12 or the first support body 11. The power supply and the circuit board are electrically connected with the flexible screen using the folding mechanism. The hinge rods at two ends of the hinge rotating part 16 of the bending part 15 are respectively connected to one side of the first supporting body 11 and one side of the second supporting body 12, and the fixing manner may be welding or embedding. The first support 11 and the second support 12 may be made of plastic, metal, or other materials. The first supporting body 11 includes a first surface 111, the second supporting body 12 includes a second surface 121, it should be noted that the first surface 111 and the second surface 121 may form a plane and have the same orientation, and the bearing surface 160 of the hinge rotating member 16 and the first surface 111 and the second surface 121 have the same orientation to support the flexible screen together. The folding mechanism further includes a flexible supporting plate (not shown), the flexible supporting plate is fixed on the first surface 111 of the first supporting body 11 and the second surface 121 of the second supporting body 12, faces upward and is stacked on the bearing surface 160, and the flexible supporting plate is made of flexible steel, and is used for supporting a flexible screen using the folding mechanism when the folding mechanism is unfolded.

Referring to fig. 11, an embodiment of the present invention further provides a terminal 100, which includes the folding mechanism 50 and a flexible screen 60, wherein the flexible screen 60 is disposed on the first surface 111 of the first supporting body 11 and the second surface 121 of the second supporting body 12, and is bent by a bending portion. The bearing surface 160 faces the flexible screen 60 and bears on a portion of the flexible screen 60.

When the terminal is bent, the first supporting body 11 and the second supporting body 12 are turned over relatively to drive the hinged rotating piece 16 and the positioning rotating piece 17 to be bent, the connecting pieces 171 are rotated mutually under the condition that the connecting length is not changed to enable the positioning rotating piece 17 to form an arc shape, the positioning rotating piece 17 is fixedly connected with the hinged rods, so that the hinged rods 163 are pulled to rotate relative to the positioning pins 166, meanwhile, the positioning pins 166 generate displacement to slide along the sliding grooves 165 to enable the hinged rods 163 to be drawn close to each other, and gaps S between the hinged rods 163 are reduced until the outer side faces 1631 form the arc-shaped bearing face 160; since the size of the bent bearing surface 160 is smaller than that of the flat state, the bending portion 15 does not generate a pulling force on the first supporting body and the second supporting body to stretch the flexible screen 60 during the bending process, thereby preventing the flexible screen from being damaged and ensuring the display function.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

A folding mechanism is characterized by comprising a first support body, a second support body and a bent part, wherein the bent part is connected between the first support body and the second support body so as to realize the turnover of the first support body relative to the second support body;

the bending part comprises a positioning rotating part and a hinged rotating part connected between the first supporting body and the second supporting body, the hinged rotating part comprises a plurality of hinged rods, the outer side surfaces of the hinged rods jointly form a bearing surface opposite to the bending direction, the hinged rods are sequentially connected with the positioning rotating part side by side,

the length of the positioning rotating piece in the bending process is unchanged, and the hinged rotating piece bends along with the positioning rotating piece, so that the length of the bent bearing surface is equal to the length of the bearing surface when the bearing surface is unfolded.
The folding mechanism of claim 1 wherein a gap is provided between any two of said plurality of hinge bars, each of said hinge bars including an inner side surface opposite said outer side surface, said gap having a width that gradually decreases from said inner side surface toward said outer side surface,

the hinged rotating piece is bent along with the positioning rotating piece, and the gap between every two hinged rods is reduced, so that the bent length of the bearing surface is equal to the flat length of the bearing surface.
The folding mechanism of claim 2 wherein a linkage is connected between any two of said links, said linkage being configured to effect relative movement between the two links.
The folding mechanism according to claim 3, wherein the linkage portion includes a hinge block, a hinge seat and a positioning pin, the hinge block is provided with a sliding slot, the positioning pin passes through the sliding slot to connect the hinge block to the hinge seat and can rotate in the sliding slot, and a gap between every two hinge rods is reduced, so that the hinge block and the hinge seat move relatively to drive the positioning pin to slide in the sliding slot.
The folding mechanism of claim 4, wherein the sliding direction of the positioning pins connecting all the linkage portions of the hinge levers is the same.
The folding mechanism of claim 4, wherein each of said plurality of hinge rods except for one of said hinge rods connected to said first support body is provided with said hinge block protruding therefrom, the hinge blocks of the plurality of hinge rods are oriented in the same direction, and said slide groove penetrates through said hinge blocks in the axial direction of said hinge rods.
The folding mechanism of claim 6, wherein each of said hinge rods except for one of said hinge rods connected to said second support body is provided with a hinge seat, said hinge seat comprises two spaced seat bodies, said hinge block is located between said two seat bodies, and said seat bodies are provided with mounting holes for disposing said positioning pins along the axial direction of said hinge rod.
The folding mechanism of claim 7 wherein each of said hinge rods includes two opposing sides connecting said outer side and said inner side; the hinged block is arranged on one side face, and the hinged seat is arranged on the other side face.
The folding mechanism of claim 8 wherein said hinge block is provided on a side of a hinge rod connected to said first support, said side of said hinge rod being connected to said first support and said side of said hinge rod being connected to said first support.
The folding mechanism of claim 8, wherein the other side of the hinge rod connected to the second support body is provided with the hinge seat, the other side of the hinge rod is connected to the second support body, and the hinge seat of the other side is connected to the second support body.
The folding mechanism of any of claims 1-10, wherein each of said plurality of hinge levers is connected to said positioning rotator by a pin.
The folding mechanism of claim 11, wherein said positioning rotating member includes n connecting pieces, said n connecting pieces are rotatably connected in a chain manner, the joint of any two connecting pieces forms a rotating position, the free ends of the connecting pieces at both ends of said positioning rotating member are provided with fixing positions, and said rotating position and fixing positions are connected with said pin connected with said hinge rod.
The folding mechanism of any of claims 1-10 further comprising a flexible support panel secured to said first support and said second support and overlying said load-bearing surface.
The folding mechanism of any of claims 1-10, wherein a power source is disposed within said first support or said second support; and a circuit board connected with the power supply is arranged in the second support body or the first support body.
A terminal, comprising the folding mechanism and a flexible screen according to any of claims 1 to 13, wherein the flexible screen is disposed on the first supporting body and the second supporting body, and is bent by a bending portion.
The terminal of claim 15, wherein a power source is disposed within the first support or the second support; and a circuit board connected with the power supply is arranged in the second support body or the first support body, and the flexible screen is electrically connected with the circuit board.