WO2019024046A1

WO2019024046A1 - Folding mechanism and terminal

Info

Publication number: WO2019024046A1
Application number: PCT/CN2017/095828
Authority: WO
Inventors: 张强
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2017-08-03
Filing date: 2017-08-03
Publication date: 2019-02-07
Also published as: CN110770814A; CN110770814B

Abstract

Provided are a folding mechanism and a terminal comprising the folding mechanism. The folding mechanism is applied to a terminal provided with a flexible screen, and the folding mechanism comprises a first support body (11), a second support body (12) and a bending portion (15), wherein the bending portion (15) is connected between the first support body (11) and the second support body (12) to realize the folding of the first support body (11) relative to the second support body (12); the bending portion (15) comprises a positioning rotation member (17) and a hinge rotation member (16) connected between first support body (11) and the second support body (12); the hinge rotation member (16) comprises multiple hinge rods (163); outer side faces of the multiple hinge rods (163) together form a bearing surface (160) in a direction opposite to the direction of bending; the multiple hinge rods (163) are successively connected to the positioning rotation member (17) side by side; in the bending process, the length of the positioning rotation member (17) remains unchanged; and the hinge rotation member (16) is bent with the positioning rotation member (17), so that the length of the bearing surface (160) after being bent is equal to the length of the bearing surface (160) after being unbent.

Description

Folding mechanism and terminal

Technical field

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

Background technique

In order to improve the operation performance and viewing performance, some existing mobile phones or notebook computers adopt full-screen settings, such as a notebook computer, including a two-part main body rotating shaft connection for folding and opening, and the screens are also respectively arranged on two parts for operation. And display, although the full screen setting is adopted, the display performance of the large screen cannot be achieved due to the hinge connection method which divides the screen into two parts.

Summary of the invention

Embodiments of the present invention provide a folding mechanism and a terminal that can realize screen bending.

The folding mechanism of the present invention is applied to a terminal having a flexible screen, the folding mechanism includes a first support body, a second support body and a bent portion, and the bent portion is connected to the first support body and the first Between the two supports, to achieve the folding of the first support relative to the second support;

The bent portion includes a positioning rotating member and a hinged rotating member connected between the first supporting body and the second supporting body, the hinge rotating member includes a plurality of hinged rods, and outer sides of the plurality of hinged rods Forming a bearing surface for carrying the flexible screen, the plurality of hinge rods are connected side by side to the positioning rotating member,

The length of the positioning rotating member is constant during the bending process, and the hinge rotating member is bent along with the positioning rotating member, so that the length after the bending of the bearing surface is equal to the length when the bearing surface is flattened.

The terminal of the present invention includes the folding mechanism and the flexible screen. The flexible screen is fixed on the first support body and the second support body, and the bearing surface is bent toward the flexible screen. region.

The folding mechanism of the present invention drives the hinged rotating member to bend by a positioning rotating member with a constant length when bending, so that the length of the bearing surface of the flexible screen after the bending of the hinged rotating member is equal to that of the hinged rotating member The length of the bearing surface is usually changed, so that the bending area of the flexible screen fixed to the folding mechanism when being bent is not stretched by the bending portion of the folding mechanism, that is, it 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 to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

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

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

Figure 3 is a side elevational view of the folding mechanism of Figure 2.

Figure 4 is a partial enlarged view of the folding mechanism shown in Figure 3.

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

Figure 6 is a partial enlarged view of the folding mechanism of Figure 5.

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

Figure 8 is a partial enlarged view of the folding mechanism shown in Figure 3.

Figure 9 is a side elevational view showing the folding mechanism of Figure 3 in a folded state.

Fig. 10 is a schematic cross-sectional view showing the folding mechanism of Fig. 3 in a bent state.

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

Detailed ways

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

Embodiments of the present invention provide a folding mechanism and a terminal having the folding mechanism. The folding mechanism supports a flexible screen of the terminal. The terminal may be a tablet computer, a mobile phone, a flexible display, an electronic reader, a remote controller, a personal computer (PC), a notebook computer, an in-vehicle device, a network television, a wearable device, or the like. In this embodiment, a tablet computer is taken as an example for description.

Referring to FIG. 1 together, the folding mechanism includes a first support body 11 , a second support body 12 , and a bent portion 15 . The bent portion 15 is connected between the first support body 11 and the second support body 12 to fold the first support body 11 relative to the second support body 12 . The bent portion 15 includes a positioning rotating member 17 and a hinge rotating member 16 connected between the first supporting body 11 and the second supporting body 12.

The hinge rotating member 16 includes a plurality of hinge rods 163, and outer sides of the plurality of hinge rods 163 Together, a bearing surface 160 for carrying the flexible screen is formed, and the plurality of hinged rods 163 are connected side by side to the positioning rotating member 17 in sequence. As shown in FIG. 2, a gap is provided between any two of the plurality of hinge rods 163. The length of the positioning rotating member 17 is constant during the bending process, and the hinge rotating member 16 is bent along with the positioning rotating member 17, the gap is reduced, and the total length of the bearing surface 160 is constant, so that The length of the bearing surface 160 after bending is equal to the length of the bearing surface 160 when it is flattened.

The folding mechanism drives the hinge rotating member 16 to bend by the positioning rotating member 17 with the same length when bending, so that the hinge rods 163 are close to each other, so that the bearing surface 160 is bent and not stretched, so that the hinge is hinged. The length of the bearing surface 160 after the bending of the rotating member 16 is equal to the length of the bearing surface 160 when the hinged rotating member 16 is flattened, so that the bending portion of the flexible screen fixed to the folding mechanism is not folded by the folding mechanism. The bent portion is stretched, that is, it is not stretched by an external force to avoid damage to the flexible screen.

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

In this embodiment, the hinge rod 163 is an elongated rod body, and includes the outer side surface, that is, a surface opposite to the bending direction and an inner side surface 1632 disposed opposite to the outer side surface, the inner side surface and the outer side direction, the outer side The width of the side surface is smaller than the width of the inner side surface such that the hinge rod 163 has a substantially trapezoidal trapezoidal cross section, the outer side surface is a trapezoidal upper bottom edge, and the inner side surface 1632 is a trapezoidal lower bottom edge. A plurality of the hinge rods 163 are arranged side by side, and the gap is between two adjacent hinge rods. When the bearing surface 160 is bent in an arc shape, the plurality of inner side surfaces are connected to each other to form an arc-shaped connecting surface, and the length of the connecting surface in the bent state is smaller than the length in the flattened state.

Referring to FIG. 2 and FIG. 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 used to achieve relative movement between the two hinge rods 163. Movement includes turning and sliding.

Specifically, referring to FIG. 4, FIG. 5 and FIG. 6, a gap S is disposed between any two of the plurality of hinge rods 163. Each of the hinge rods 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 is gradually decreased from the inner side surface 1632 toward the bearing surface 160. In this embodiment, the plurality of hinge levers 163 are independently provided. The gap S is also spaced every two outer side faces 1631. In other embodiments, the plurality of articulated rods 163 may be integral and movably connectable through the outer side 1631, then the gap S does not extend through the two outer sides. When the hinge rotating member 16 is bent, the plurality of hinge levers 163 move toward each other, The gap S is reduced. The plurality of outer side surfaces 1631 are sequentially connected to the hinged rod 163 to form an arcuate bearing surface. When the folding mechanism is flattened, the hinged rotating member 16 is fully deployed, and the plurality of outer side surfaces 1631 are coplanar to form a planar bearing surface 160, as shown in FIG.

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 hinge rod 163 has a substantially trapezoidal trapezoidal cross section, the outer side surface 1631 is a trapezoidal upper bottom side, and the inner side surface 1632 is a trapezoidal shape. The bottom edge. Each of the articulated rods 163 includes two opposing sides 1633 that connect the outer side 1631 and the inner side 1632. A plurality of the hinge rods 163 are arranged side by side and movably connected in sequence, and the gap S is between the sides of two adjacent hinge rods 163. A plurality of the inner side surfaces 1632 are coplanar to form a connecting surface 161. When the bearing surface 160 is bent in an arc shape, the plurality of inner side surfaces are connected to each other to form an arc-shaped connecting surface 161, and in a bent state. The length of the connecting face 161 is smaller than the length in the flattened state. As shown in Figure 9.

Referring to FIG. 5, FIG. 6 and FIG. 8, in this embodiment, each of the linkages includes a hinge block 167, a hinge seat 168 and a positioning pin 166. The hinge block 167 is provided with a sliding slot 165. The positioning pin 166 passes through the sliding slot 165 to connect the hinge block 167 to the hinge seat 168 and is rotatable within the sliding slot 165, and the gap S between each of the two hinge rods 163 is reduced to The hinge block 167 is moved relative to the hinge seat 168 to drive the positioning pin 166 to slide in the sliding slot 165. In this embodiment, the sliding directions of the positioning pins 166 connecting all the linking portions of the hinge rod 163 are the same, thereby ensuring that the bearing surfaces 160 are not stretched when the plurality of hinged rotating members 16 are bent. Of course, depending on the force at the time of bending, the sliding direction of the positioning pin 166 may also be different.

The sliding slot 165 includes a first end 1651 and a second end 1652 opposite to the first end 1651. When the bent portion 15 is flattened, the positioning pin 166 is located at the first end 1651 when the bent portion 15 is bent. Folding, the plurality of hinged rods 163 are close to each other, and the positioning pin 166 slides in the sliding groove 165 to the second end 1652. During the bending process of the hinged rotating member 16, while the positioning pin 166 slides in the sliding slot 165, the sliding slot 165 is also rotated relative to the positioning pin 166, so that each of the hinged rods 163 can generate a rotational displacement, so that the entire hinged rotating member 16 bending, can refer to Figure 10.

As shown in FIG. 6, in the embodiment, one side surface 1633 of each of the hinge rods 163 except the hinge rod 163 connected to the first support body 163 is convexly disposed. The hinge block 167 is located in the middle of the side 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 sliding grooves 165 are penetrated in the axial direction of the hinge rod 163. The articulated rod 163 is described.

Each of the hinge rods 163 except the hinge rod 163 connected to the second support body 163 is provided with a hinge seat 168, and the hinge seat 168 of each linkage portion A is The hinge block 167 is oppositely disposed, the hinge seat 168 includes two spaced apart seating bodies 1681, the hinge block 167 is located between the two seat bodies 1681, and the hinged seat 168 is hinged along the hinge A mounting hole 169 for fixing the positioning pin 166 is provided in the axial direction of the rod 163. The seat body 1681 is located at both ends of a side surface 1633 of the hinge rod 163. It can be 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 rods 163 are connected through the linkage portion, the hinge rod 163 mounted on the second support body 12 is first started, and the first hinge rod 163 is provided with the hinge Block 167, the positioning pin 166 is fixed through the sliding groove 165 of the hinge block 167 to the hinge seat 168 of the second hinge rod 163 adjacent to the first hinge rod 163. The second positioning pin 166 passes through the sliding groove 165 of the second hinge rod 163 and is fixed to the hinge seat 168 of the third hinge rod 163 adjacent to the second hinge rod 163, and so on until the end. Two hinge rods 163 are connected by a positioning pin 166, and one side 1633 of the last hinge rod 163 is fixedly coupled to the side of the first support rod 11.

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

As shown in FIG. 3, in the present embodiment, each of the plurality of hinge rods 163 is connected to the positioning rotating member 17 by a pin 170, and the pin 170 does not intersect the bearing surface 160. In this embodiment, the hinge rod 163 includes an end surface connecting the outer side surface 1631 and the inner side surface 1632 and the two side surfaces 1633. The positioning rotating member 17 is two, and the one end surface 1633 of the plurality of hinge rods 163 is connected with a positioning rotating member 17 through a pin, and the other end surface 1633 of the plurality of hinge rods 163 facing the same direction is rotated. The piece 17 is connected by a pin. And the stated The position rotating member 17 is fixedly coupled to the end surface of each of the hinge rods 163 near the outer side surface 1631, thereby ensuring that the bearing surface 160 is not stretched when the hinge rod 163 is rotated. Of course, the positioning rotating member 17 can also be one, embedded in the middle of the plurality of hinged rods 163. At this time, the position of the corresponding adjusting portion can be adjusted as long as the displacement of the positioning rotating member 17 to the hinged rod 163 can be defined. .

As shown in FIG. 7, in the embodiment, the positioning rotating member 17 includes n connecting pieces 171, each connecting piece 171 is a strip-shaped piece, and the n connecting pieces 171 are connected by a chain, and any two connections are connected. The joint of the piece 171 forms a rotation position B, and the free end of the connection piece 171 at both ends of the chain is provided with a fixed position C, and the rotation position B and the two fixed positions C are connected to a joint with the hinge rod 163. Pin 170

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 it is connected to one end of the last connecting piece 171. In the present embodiment, the rotational position B of each of the two connecting pieces 171 is fixedly connected to one of the hinge rods 163, and the fixing position C of the connecting piece 171 at both ends of the chain is fixed to the first support body 11 and the second support body 12. When the positioning rotating member 17 is bent by an external force, the plurality of connecting pieces 171 rotate with each other to form the positioning rotating member 17 to be curved, but the connecting piece 171 itself is not deformed, and when the positioning rotating member 17 is bent, The plurality of hinge rods 163 are moved to move closer to each other, the gap S becomes smaller, the positioning pin 166 slides in the sliding groove 165, and the plurality of outer side surfaces 1631 are adjacent to the connecting bearing surface 160 which is formed into an arc shape.

Referring to FIG. 2 again, in the embodiment, the first support body 11 and the second support body 12 are rectangular hollow shells, which may also be a plate body. The first support body 11 is determined according to design requirements. The inside of the second support body 12 can be used to house a power source and a circuit board lamp device. In this embodiment, a power source is disposed in the first support body 11 or the second support body 12; a circuit board connected to the power source is disposed in the second support body 12 or the first support body 11. The power source and circuit board are electrically connected to a flexible screen using the folding mechanism. The hinge rods at the opposite ends of the hinged rotating member 16 of the bent portion 15 are respectively connected to one side of the first support body 11 and one side of the second support body 12, and the fixing manner may be welding or embedding. The first support body 11 and the second support body 12 may be supported by a material such as plastic or metal. The first support body 11 includes a first surface 111, and the second support plate 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 face the same, the hinge The bearing surface 160 of the rotating member 16 faces the same as the first surface 111 and the second surface 121 to jointly support the flexible screen. The folding mechanism further includes a flexible support plate (not shown), the flexible support The plate is fixed on the first surface 111 of the first support body 11 and the second surface 121 of the second support body 12 upwards and laminated on the bearing surface 160, the flexible support plate is a flexible steel support, A flexible screen for supporting the folding mechanism when the folding mechanism is flattened.

Referring to FIG. 11 , an embodiment of the present invention further provides a terminal 100 including the folding mechanism 50 and a flexible screen 60. 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 support body 12 is bent by a bent portion. The bearing surface 160 faces the flexible screen 60 and is carried on a portion of the flexible screen 60.

When the terminal is bent, the first support body 11 and the second support body 12 are folded over, and the hinge rotating member 16 and the positioning rotating member 17 are bent, and the plurality of connecting pieces 171 are not connected at the length. In the case of mutual rotation, the positioning rotating member 17 is curved, and the positioning rotating member 17 is fixedly connected with the hinge rod, thereby pulling the plurality of hinge rods 163 to rotate relative to the positioning pin 166, and the positioning pin 166 is displaced along the sliding. The slot 165 slides to close the plurality of hinge rods 163, and the gap S between the plurality of hinge rods 163 is reduced until the plurality of outer side surfaces 1631 form an arcuate bearing surface 160; since the bearing surface 160 is bent after the size is compared In the flattening state, the size is reduced. In the bending process, the bending portion 15 does not cause the first supporting body and the second supporting body to pull the tensile force to stretch the flexible screen 60, thereby avoiding damage to the flexible screen and ensuring the display function.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A folding mechanism, comprising: a first supporting body, a second supporting body and a bending portion, wherein the bending portion is connected between the first supporting body and the second supporting body, Folding the first support body relative to the second support body;

The bent portion includes a positioning rotating member and a hinged rotating member connected between the first supporting body and the second supporting body, the hinge rotating member includes a plurality of hinged rods, and outer sides of the plurality of hinged rods Forming a bearing surface opposite to the bending direction, the plurality of hinge rods being connected side by side to the positioning rotating member

The length of the positioning rotating member is constant during the bending process, and the hinge rotating member is bent along with the positioning rotating member, so that the length after the bending of the bearing surface is equal to the length when the bearing surface is flattened. .
The folding mechanism according to claim 1, wherein a gap is provided between any two of said plurality of hinged rods, and each of said hinge rods includes an inner side opposite said outer side. The width of the gap is gradually decreased from the inner side toward the outer side direction,

During the bending of the positioning rotating member, the gap between each two hinge rods is reduced, so that the length of the bearing surface after bending is equal to the length when the bearing surface is flattened.
The folding mechanism according to claim 2, wherein a joint portion is coupled between any two of said hinge rods, and said linkage portion is for effecting relative movement between the two hinge rods.
The folding mechanism according to claim 3, wherein the linkage portion comprises a hinge block, a hinge seat and a positioning pin, the hinge block is provided with a sliding slot, and the positioning pin passes through the sliding slot to connect the hinge block Attached to the hinge seat and rotatable within the chute, the gap between each of the two hinge rods is reduced to move the hinge block relative to the hinge seat, thereby driving the positioning pin Sliding in the chute.
The folding mechanism according to claim 4, wherein the locating pins of all of the interlocking portions that connect the hinge bars are in the same sliding direction.
The folding mechanism according to claim 4, wherein said hinge joint is protruded from each of said plurality of hinge rods except a hinge rod connected to said first support body The hinge blocks of the plurality of articulated rods face the same, and the chute extends through the hinge block along the axial direction of the hinge rod.
A folding mechanism according to claim 6 wherein one of said plurality of hinged rods is removed Each of the hinge rods other than the hinge rod connected to the second support body is provided with a hinge seat, the hinge seat includes two spaced seats, and the hinge block is located at the two seats And a mounting hole for arranging the positioning pin is provided on the seat body along an axial direction of the hinge rod.
A folding mechanism according to claim 7, wherein each of said hinge levers includes two opposite sides connecting said outer side and said inner side; said hinge block is provided on one side, said hinge seat being provided on On the other side.
The folding mechanism according to claim 8, wherein a side of the hinge rod connected to the first support body is provided with the hinge block, and a side surface of the hinge rod is connected to the first support body and the side surface is A hinge block is coupled to the first support.
A folding mechanism according to claim 8, wherein the other side of the hinge rod connected to the second support body is provided with the hinge seat, and 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.
A folding mechanism according to any one of claims 1 to 10, wherein each of said plurality of hinged levers is coupled to said positioning rotary member by a pin.
The folding mechanism according to claim 11, wherein said positioning rotating member comprises n connecting pieces, said n connecting pieces are connected in a chain type, and a joint of any two connecting pieces forms a rotating position. The free ends of the connecting pieces at both ends of the positioning rotating member are provided with fixed positions, and the rotating position and the fixed position are connected with a pin connected to the hinge rod.
The folding mechanism according to any one of claims 1 to 10, wherein the folding mechanism further comprises a flexible support plate fixed to the first support body and the second support body and laminated On the bearing surface.
The folding mechanism according to any one of claims 1 to 10, wherein a power source is disposed in the first support body or the second support body; and the second support body or the first support body is provided with The circuit board to which the power source is connected.
A terminal characterized by comprising the folding mechanism and the flexible screen according to any one of claims 1 to 13, wherein the flexible screen is disposed on the first support body and the second support body, and is bent The department achieves bending.
The terminal according to claim 15, wherein a power source is disposed in the first support body or the second support body; and the second support body or the first support body is connected to the power source. a circuit board, the flexible screen being electrically connected to the circuit board.