CN207115888U - Fold mechanism and terminal - Google Patents

Abstract

The utility model provides a folding mechanism, comprising a first support body, a second support body and a bending part, the bending part is connected between the first support body and the second support body, and the bending part includes a flexible The supporting plate and n connecting rods arranged side by side, the outer surface of the flexible supporting plate is used to carry the flexible screen, the first surfaces of the n connecting rods jointly form a bearing surface for carrying the flexible supporting plate, and the n connecting rods The first surface of the first surface is sequentially fixed on the inner surface of the flexible support plate, and there is a gap between any two adjacent connecting rods among the n connecting rods, and the gap gradually decreases from the width of the connecting rod to the direction of the flexible support plate Small, the length of the flexible support plate remains unchanged during the bending process. When the bending part is bent, the bending of the flexible support plate drives n connecting rods closer to each other, and the gap between any two connecting rods is reduced, so that the bending on the bearing surface The length after folding is equal to the length when the load-bearing surface is flattened. The utility model also provides a terminal.

Description

Folding mechanism and terminal

technical field

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

Background technique

In order to improve the operating performance and viewing performance, some existing mobile phones or notebook computers adopt full-screen settings, such as notebook computers, which include two parts of the main body connected by convex columns to realize folding and opening, and the screens are also respectively arranged on the two parts of the main body for For operation and display, although a full-screen setting is adopted, the screen is divided into two parts due to the connection method of the convex post, which cannot achieve the display performance of a large screen.

Utility model content

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

A folding mechanism according to the present invention is applied to a terminal with a flexible screen, the folding mechanism includes a first support body, a second support body and a bending part, and the bending part is connected to 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 includes a flexible support plate and n connecting rods arranged side by side, the outer surface of the flexible supporting plate is used to carry the flexible screen, and the first surfaces of the n connecting rods are jointly formed to carry the flexible screen. The bearing surface of the support plate, and the first surfaces of the n connecting rods are sequentially fixed on the inner surface of the flexible supporting plate, and a gap is provided between any two adjacent connecting rods in the n connecting rods , and the width of the gap gradually decreases from the connecting rod to the direction of the flexible support plate,

The length of the flexible supporting plate remains unchanged during the bending process. When the bending part is bent, the flexible supporting plate is bent to drive the n connecting rods to move closer to each other, and the gap between any two connecting rods is reduced. Such that the length of the bearing surface after being bent is equal to the length of the bearing surface when it is flattened, wherein, n is a natural number greater than or equal to 1.

The present invention provides a terminal, which includes a folding mechanism and a flexible screen, the flexible screen is fixed on the first support body and the second support body, and the flexible support plate supports the bending area of the flexible screen .

The folding mechanism of the present invention fixedly connects several connecting rods through the flexible support plate whose length is constant during the bending process. After the bending part is bent, the gap between every two connecting rods becomes smaller. The length of the bearing surface formed by the connecting rod is the same as the length of the bearing surface when the bending part is flattened, so that the bending area of the flexible screen fixed to the folding mechanism is not pulled by the bending part of the folding mechanism when it is bent. Stretching, that is, it will not be stretched by external force to avoid damage to the flexible screen.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a schematic structural diagram of the folding mechanism provided by the present invention.

FIG. 2 is a structural schematic view of the folding mechanism shown in FIG. 1 from a side view.

FIG. 3 is a schematic cross-sectional view of an embodiment of the folding mechanism shown in FIG. 2 with a limiting portion.

FIG. 4 is a schematic diagram of a bending state of the folding mechanism shown in FIG. 3 .

Fig. 5 is a top view of the folding mechanism shown in Fig. 1 , without the flexible support plate.

FIG. 6 is a partially enlarged view of the folding mechanism shown in FIG. 5 .

FIG. 7 is a structural schematic view of the folding mechanism shown in FIG. 2 from a side view with a positioning member.

FIG. 8 is a partially enlarged view of the folding mechanism shown in FIG. 7 .

FIG. 9 is a schematic side view of the folding state of the folding mechanism shown in FIG. 7 .

FIG. 10 is a partially enlarged view of the folding mechanism shown in FIG. 9 .

FIG. 11 is a schematic diagram of a terminal structure of the present invention.

specific embodiment

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

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 e-reader, a remote controller, a personal computer (Personal Computer, PC), a notebook computer, a vehicle-mounted device, an Internet TV, a wearable device, and the like. In this embodiment, a tablet computer is taken as an example for description.

Please refer to FIG. 1 and FIG. 2 together. The folding mechanism includes a first support body 11 , a second support body 12 and a bending portion 15 . 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 .

Please refer to FIG. 3 together. The bending portion 15 includes a flexible support plate 17 and n connecting rods 16 arranged side by side. The outer surface 171 of the flexible support plate 17 is used to carry the flexible screen. The first surfaces 161 of the connecting rods 16 jointly form a bearing surface 160 for carrying the flexible support plate 17, and the first surfaces 161 of the n connecting rods 16 are sequentially fixed on the inner surface 172 of the flexible support plate 17, A gap S is provided between any two adjacent connecting rods 16 in the n connecting rods 16, and the width of the gap S gradually decreases from the connecting rod 16 to the direction of the flexible support plate 17, wherein , n is a natural number greater than or equal to 1.

The length of the flexible support plate 17 remains unchanged during the bending process. When the bending portion 15 is bent, the bending of the flexible support plate 17 drives the n connecting rods 16 to move relatively. The gap S between them is reduced, 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 flexible support plate 17 is a plate made of flexible stainless steel, carbon fiber composite material, or Kevlar. In this embodiment, the flexible support plate 17 is a plate body made of flexible stainless steel, and its opposite sides are respectively connected with the first support plate 11 and the second support plate 12 . In this embodiment, both ends of the flexible support plate 17 are connected to the first support plate 11 and the second support plate 12 in a stacked manner, and the large connection area can ensure the support stability of the flexible support plate 17 . When the bending portion 15 is bent, the n connecting rods 16 will not be separated and can be bent in an arc shape. The outer surface 171 of the flexible support plate 17 is fixedly connected to the first surface 161 of each of the connecting rods 16, so that the first surfaces 161 of any two adjacent connecting rods 16 are movably connected, and the bearing The surface 160 is jointly constituted by the first surfaces 161 of the n connecting rods 16 , and is located between the first support plate 11 and the second support plate 12 . The flexible support plate 17 in this embodiment is fixed to each connecting rod 16 by welding. Of course, no matter whether the flexible support plate 17 is provided, every two first surfaces 161 can be connected by a flexible body (such as rubber, cloth, etc.), or connected by a hinge.

The folding mechanism fixedly connects several connecting rods 16 through the flexible support plate 17 whose length is constant during the bending process, and the gap between every two connecting rods 16 becomes smaller after the bending part 15 is bent. The length of the bearing surface 160 formed by several connecting rods 16 is the same as the length of the bearing surface 160 when the bending part 15 is flattened, so that the bending area of the flexible screen fixed to the folding mechanism is not affected by the folding mechanism when it is bent. Stretched by the bending part, that is, it will not be stretched by external force, so as to avoid damage to the flexible screen.

Please refer to FIG. 2 , in this embodiment, each of the connecting rods 16 includes the first surface 161 and a second surface 162 opposite to the first surface 161, and the first support body 11 faces the second support body. The width of the first surface 161 is greater than the width of the second surface 162 in the direction along which 12 extends. In this embodiment, n connecting rods 16 are set independently. The width of the gap S gradually decreases from the second surface 162 to the first surface 161. In this embodiment, the gap S is roughly V-shaped, and the gap S also separates every two first surfaces. 161. Specifically, the connecting rod 16 is a long rod body, and its cross section is roughly trapezoidal. The second surface 162 is the upper base of the trapezoid, and the first surface 161 is the lower base of the trapezoid. Each connecting rod 16 includes two opposite sides 163 connecting the first surface 161 and the second surface 162 . The connecting rods 16 are arranged side by side and connected in sequence, the sides of two adjacent connecting rods 16 face each other, and the gap S is located between the sides of two adjacent connecting rods 16 . Referring to the bending state of FIG. 4 , when the flexible support plate 17 is bent, no extension in the bending direction occurs when the flexible support plate 17 is bent, and the side of the connecting rod 16 provided with the first surface 161 follows The movement of the bending track of the mobile flexible support plate 17 will not be elongated, and the gap S between the two connecting rods 16 provides a moving space and becomes smaller. Connect until the bend is complete. The plurality of first surfaces 1631 are successively approached by the connecting rod 16 to the bearing surface connected to form an arc. When the folding mechanism is unfolded, the connecting rod 16 is fully unfolded, and the plurality of first surfaces 161 are coplanar to form the plane bearing surface. In other embodiments, the n connecting rods 16 may be integrated, and the first surfaces 161 of the connecting rods 16 are movably connected, and the gap S does not pass through two adjacent first surfaces.

Please refer to FIG. 3 and FIG. 4 , on the basis of the above-mentioned embodiment, a limiting portion 18 is connected between any two adjacent connecting rods 16 , and the limiting portion 18 is used to limit the bending portion 15 Bend direction. In this embodiment, the limiting portion 18 includes a limiting protrusion 181 and a limiting groove 182 . One side 163 of each connecting rod 16 except one connecting rod 16 connected to the first support body 11 among the n connecting rods 16 is provided with the limiting groove 182 , and the limiting groove 182 The slot 182 is recessed into the connecting rod 16 . The other side 163 of each connecting rod 16 except one connecting rod 16 connected to the second support body 12 among the n connecting rods 16 is provided with a limiting protrusion 181 , and the n connecting rods 16 The limiting protrusions 181 of the rod 16 extend in the same direction. Every two adjacent connecting rods 16 in the n connecting rods 16 are plugged into the limiting groove 182 through the limiting protrusion 166, and are used to limit the bending of the bending part 15 during the bending process of the bending part 15. The bending direction is such that the bending portion 15 can only be bent toward the carrying surface 150 to prevent reverse bending.

Specifically, the limiting slot 182 includes a slot bottom wall 183 and a slot side wall 184 , and the slot side wall 184 is located on a side of the limiting slot 182 close to the first surface 161 . Starting with the connecting rod 16 mounted on the first carrier 11, the first connecting rod 16 is provided with the limiting protrusion 181, and the second connecting rod 16 adjacent to the first connecting rod 16 is connected On the rod 16 facing the limiting protrusion 181 is a limiting groove 182, the first connecting rod 16 is connected to the second connecting rod 16, the limiting protrusion 181 is inserted into the limiting groove 182, and the A certain moving space is reserved between the position-limiting protrusion 181 and the groove bottom wall 183 of the position-limiting groove 182, and the position-limiting protrusion 181 is opposed to the side wall 184 of the groove. The two connecting rods 16 are close to each other, and the limiting protrusion 181 moves into the limiting groove 182 along the groove side wall 184 . If the bending direction of the bending portion 15 is toward the flexible connecting surface 151 , the groove sidewall 184 restricts the position-limiting protrusion 181 from sliding out of the position-limiting groove, thereby limiting the bending of the bending portion 15 .

Please refer to Fig. 5 and Fig. 6, on the basis of the above embodiment, the folding mechanism further includes a positioning member 19 bent along with the bending portion, each of the connecting rods 16 is connected to the first surface 161 and the end surfaces 164 of the two side surfaces 163 , each end surface 164 of the connecting rod 16 is protrudingly provided with a boss 168 . The locator sleeve 19 is arranged on the boss 168 of the n connecting rods 16, and the bending angle of the bending part 15 is positioned by the locator 19 itself and the friction between the locator and the boss 168. .

Please refer to Fig. 7 and Fig. 8 together. Specifically, there are two positioning members 19, one of the positioning members 19 is connected to an end face 164 facing n connecting rods 16 in the same direction; the other is connected to n connecting rods 16 The other end face 164 is also facing.

The positioning member 19 includes n−1 positioning bodies 191 . In order to illustrate the relationship between the limiting body and the protrusions more clearly, the protrusions of the n connecting rods 16 are divided into a first protrusion 168 a , a second protrusion 168 b and a third protrusion 168 c arranged in sequence. One ends of any two adjacent positioning bodies 191 are sleeved on the second protrusion 168b at the same time, and the other ends of the two positioning bodies 191 are respectively sleeved on the first protrusion 168a and the third protrusion. on 168c. The connection relationship between n protrusions and n-1 positioning bodies 191 can be deduced by analogy.

As shown in Fig. 9 and Fig. 10, in this embodiment, the positioning body 191 is provided with an arc-shaped chute 192, and the positioning body 191 is sleeved on the boss 168 through the two ends of the chute 192; When the bending portion 15 is bent, the two protrusions 168 in the same positioning body 191 slide relative to each other in the slide groove 192 of the positioning body. Specifically, the positioning body 191 is roughly arc-shaped, and the slide groove 192 includes a first end 193 and a second end 194 opposite to the first end 193, and the 192 and the second end 194 are arc-shaped. At the two end positions, the two protrusions 168 in the same positioning body 191 are located at the first end 193 and the second end 194 respectively. When the flexible supporting plate 17 is bent, the connecting rod 16 is pulled with a pulling force opposite to the bending direction, and the side of the connecting rod 16 provided with the first surface 161 moves in the direction of the pulling force, and the two connecting rods 16 move in the direction of the pulling force. The arc-shaped moving tracks are relatively close together, and the two bosses 168 are opposite in the chute 192 of the positioning body, and the same boss 168 is covered with two positioning bodies 191, the friction force between the two positioning bodies 191 and the positioning The frictional force between the body 191 and the boss 168 can define the rotational position of the connecting rod 16 , and further define the bending angle of the bending portion 15 , so that the first supporting body 11 and the second supporting body 12 are positioned at an angle. In other embodiments, the positioning body 191 may be a strip-shaped piece, and two ends of each positioning body 191 are provided with a through groove, and the positioning body 191 is sleeved on the protrusion 168 through the through groove.

In this embodiment, as shown in FIG. 1 and FIG. 6 , the free end of each boss 168 is provided with a protective plate 169 , and the protective plates 169 of the bosses 168 of n connecting rods 16 are staggered forward and backward along the axial direction. set up. The protective plate 169 is a rectangular plate, whose shape and area are approximately the same as the shape and size of the end surface of the connecting body 16, and is used to cover the end of the connecting rod. The protection plates 169 on the n protrusions 168 are located on the same plane at odd positions, and on the same plane at even positions, and the two planes are parallel.

In this embodiment, the first support body 11 and the second support body 12 are rectangular hollow shells, and may also be plate bodies, which are determined according to design requirements. The first support body 11 and the second support body 12. The interior can be used to accommodate power supply, circuit board light components. In this embodiment, the first support body 11 or the second support body 12 is provided with a power supply; the second support body 12 or the first support body 11 is provided with a circuit board connected to the power supply. The power supply and the circuit board are electrically connected with the flexible screen using the folding mechanism. The outermost two of the n connecting rods 16 of the bending part 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 method can be welding or embedding. . The first supporting body 11 and the second supporting body 12 may be supported by materials such as plastics and metals. 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 can form a plane and have the same orientation. The flexible The outer surface 171 of the support plate 17 faces the same direction as the first surface 111 and the second surface 121 , and jointly supports the flexible screen.

Please refer to FIG. 11 , the embodiment of the present invention also provides a terminal 100, which includes the folding mechanism 50 and the flexible screen 60, the flexible screen 60 is fixed on the first surface 111 of the first support body 11 and and On the second surface 121 of the second support body 12 , the flexible support plate 17 supports the bending area of the flexible screen 60 . The flexible screen 60 is electrically connected to the circuit board.

When the terminal is bent, the first support body 11 and the second support body 13 are folded relative to each other, which drives the flexible support plate 17 to bend, and squeezes several connecting rods 16 in the bending direction. S provides moving space and becomes smaller, and n connecting rods 16 move closer to each other at the same time, until several first surfaces 161 form an arc-shaped bearing surface; because the size of the bearing surface 160 after bending is compared with the size in the flattened state During the bending process, the bending portion 15 does not cause the first supporting body 11 and the second supporting body 12 to generate pulling force to stretch the flexible screen 60, so as to avoid damage to the flexible screen 60 and ensure the display function.

The above description is a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered Be the protection scope of the present invention.

Claims (10)

1. A folding mechanism, characterized in that, the folding mechanism comprises a first support body, a second support body and a bending portion, and the bending portion is connected between the first support body and the second support body , so as to realize the folding of the first supporting body relative to the second supporting body; The bending part includes a flexible support plate and n connecting rods arranged side by side, the outer surface of the flexible supporting plate is used to carry the flexible screen, and the first surfaces of the n connecting rods are jointly formed to carry the flexible screen. The bearing surface of the support plate, and the first surfaces of the n connecting rods are sequentially fixed on the surface of the flexible supporting plate, and a gap is provided between any two adjacent connecting rods in the n connecting rods, And the width of the gap gradually decreases from the connecting rod to the direction of the flexible support plate, The length of the flexible supporting plate remains unchanged during the bending process. When the bending part is bent, the flexible supporting plate is bent to drive the n connecting rods to move closer to each other, and the gap between any two connecting rods is reduced. Such that the length of the bearing surface after being bent is equal to the length of the bearing surface when it is flattened, wherein, n is a natural number greater than or equal to 1. 2 . The folding mechanism according to claim 1 , wherein any two adjacent connecting rods are movably connected by a limiting part, and the limiting part is used to limit the bending direction of the bending part. 3. The folding mechanism according to claim 2, wherein the limiting portion comprises a limiting protrusion and a limiting groove, and each of the connecting rods comprises a connecting rod connecting the first surface and the second surface. two opposite sides, The limit groove is provided on one side of each of the n connecting rods except one connecting rod connected to the first support body, The limiting protrusion is provided on the other side of each of the connecting rods except for one connecting rod connected to the second support body among the n connecting rods; Any two adjacent connecting rods among the n connecting rods are inserted into the limiting slots through the limiting protrusions, and the limiting protrusions of the n connecting rods extend in the same direction. 4. The folding mechanism according to claim 3, characterized in that, the folding mechanism further comprises a positioning member bent along with the bending portion, and each of the connecting rods comprises a connecting rod connecting the first surface and the second surface. The end surface of the surface, each end surface of the connecting rod is provided with a boss; The positioning piece is sleeved on the bosses of the n connecting rods, and the bending angle of the bending part is positioned by the positioning piece itself and the friction force between the positioning piece and the bosses. 5. The folding mechanism according to claim 4, wherein the positioning member comprises n-1 positioning bodies; the protrusions of the n connecting rods comprise first protrusions, second protrusions and One end of any two adjacent positioning bodies of the third protrusion is simultaneously sleeved on the second protrusion, and the other ends of the two positioning bodies are respectively sleeved on the first protrusion and the third protrusion. superior. 6. The folding mechanism according to claim 5, wherein the positioning body is provided with an arc-shaped chute, and the positioning body is sleeved on the boss through the two ends of the chute; When the bending part is bent, the two protrusions in the same positioning body slide in the slide groove of the positioning body. 7. The folding mechanism according to claim 4, characterized in that, the positioning body is a strip-shaped piece, and the two ends of each positioning body are provided with through grooves, and the positioning body is sleeved on the said through groove. on the boss. 8 . The folding mechanism according to claim 4 , wherein a protective plate is provided on the free end of each protruding post, and the protective plates of the protruding posts of the n connecting rods are staggered forward and backward along the axial direction. 9. The folding mechanism according to claim 1, wherein a power supply is provided in the first support body or the second support body; Circuit board for power connections. 10. A terminal, characterized by comprising the folding mechanism according to any one of claims 1-9 and a flexible screen, the flexible screen is fixed on the first support body and the second support body, so The flexible support plate supports the flexible screen; the first support body or the second support body is provided with a power supply; the second support body or the first support body is provided with a circuit board connected to the power supply , the flexible screen is electrically connected to the circuit board.