CN214955728U - Bending mechanism, bendable shell and electronic equipment - Google Patents

Abstract

The embodiment of the utility model provides a mechanism of buckling, shell and electronic equipment of can buckling relates to the product technical field that can buckle for when solving when electronic equipment receives the impact, make the impact force that is used in on the display screen effectively reduce, and, when electronic equipment buckles, can not produce the problem of "bead" in electronic equipment's the outward appearance. The bending mechanism comprises: first fixed plate, second fixed plate and coupling assembling. Wherein, coupling assembling includes relative first end and the second end that sets up, and first end is connected with first fixed plate, and the second end is connected with the second fixed plate, and coupling assembling can buckle to make the contained angle between second fixed plate and the first fixed plate adjustable. The coupling assembling includes: the soft rubber layer is formed by injection molding and wraps the rigid core layer.

Description

Bending mechanism, bendable shell and electronic equipment

Technical Field

The utility model relates to a product technical field that can buckle especially relates to a mechanism of buckling, shell and electronic equipment can buckle.

Background

As display technologies have been developed, the forms of display screens have become diversified, and flexible display screens such as folding screens and scroll screens have come to be in sight of people. Electronic devices carrying flexible display screens combine a compact design of the appearance with a large screen development of the display screen, for example, foldable electronic devices that can be unfolded to obtain a screen that is about twice as large as non-foldable electronic devices of the same size. Common foldable electronic devices typically comprise two-part housings, and the two-part housings are connected by a hinge system. The rotating shaft system can comprise a metal rotating shaft, and the outer part of the metal rotating shaft is covered by a hard glue package, so that the functions of shielding and preventing dust from entering are achieved. However, when the foldable electronic device is impacted by an external force, such as a drop impact, the hard glue on the outside is brittle and easily broken, resulting in a hinge system that is easily broken.

In order to solve this problem, the prior art uses soft glue instead of the hard glue. Fig. 1 is a diagram of a whole foldable electronic device 1 in the prior art, where the foldable electronic device E1 includes: a front frame 101, a middle frame 102, a folding screen 103, a rotating shaft system 104 and a coating mechanism 105. The shaft system 104 includes a plurality of shafts 104a and two rotating plates 104b connected to each other.

The wrapping mechanism 105 is a soft plastic wrapping sheet, and the soft plastic wrapping sheet is arranged on one side of the rotating shaft system 104 far away from the folding screen 103 and covers the rotating shaft system 104, so that external force impact is relieved, and the rotating shaft system 104 is better protected.

However, when the external force applied to the foldable electronic device 1 is too large, the hinge system 104 may contact the foldable screen 103, and the impact force applied to the hinge system 104 is transmitted to the foldable screen 103, so that the foldable screen 103 is also impacted, and if serious, the foldable screen 103 cannot be displayed normally.

In addition, since the deformation amount of one surface of the folding screen 103 close to the rotating shaft system 104 and the deformation amount of the other surface far from the rotating shaft system 104 are different in the folding process (one surface is squeezed and the other surface is stretched), the rotating shaft system 104 can be configured to adapt the deformation amounts of the two surfaces by changing the state of the rotating shaft system 104. When the foldable electronic device 1 is in a folded state, the rotating shaft is configured in a folded state, and the wrapping mechanism 105 can be attached to the surface of the rotating shaft system 104 by the tensile tension of the wrapping mechanism; when the foldable electronic device 1 is in the unfolded state, the hinge system 104 is configured in the unfolded state, and the covering mechanism 105 cannot completely fit with the surface of the hinge system 104 due to the influence of the stretching deformation, and may even generate a "rib" on the appearance of the foldable electronic device 1, thereby affecting the user experience.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a mechanism of buckling, shell and electronic equipment can buckle for when solving when electronic equipment receives the impact, make the impact force that is used in on the display screen effectively reduce, and, when electronic equipment buckles, electronic equipment can not produce the problem of "bead" in appearance.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

in a first aspect, a bending mechanism is provided, which includes: first fixed plate, second fixed plate and coupling assembling. Wherein, coupling assembling includes relative first end and the second end that sets up, and first end is connected with first fixed plate, and the second end is connected with the second fixed plate, and coupling assembling can buckle to make the contained angle between second fixed plate and the first fixed plate adjustable. The connecting assembly comprises a rigid core layer and a soft rubber layer, wherein the soft rubber layer is formed by injection molding and wraps the rigid core layer.

In some embodiments, the rigid core layer comprises a plurality of rigid strips arranged in series along a first direction, the first direction being a direction in which the first end points towards the second end.

In some embodiments, the plurality of rigid strips includes a plurality of first rigid strips and a plurality of second rigid strips arranged alternately, each first rigid strip includes a first side surface and a second side surface, the first side surface is provided with a first groove, the second side surface is provided with a second groove, and the first side surface and the second side surface are two opposite side surfaces along the first direction. Each second rigid strip comprises a first stretching-in part and a second stretching-in part, the first stretching-in part stretches into a first groove of one first rigid strip adjacent to the second rigid strip, and the second stretching-in part stretches into a second groove of the other first rigid strip adjacent to the second rigid strip.

In some embodiments, the cross-section of the first rigid strip is an axisymmetric pattern, the axis of symmetry being parallel to the second direction; and/or the cross section of the second rigid strip is in an axisymmetric pattern, and the symmetry axis is parallel to a second direction, wherein the second direction is perpendicular to the first direction;

in some embodiments, two surfaces of the first rigid strip opposite to each other in the thickness direction of the connecting member are convex arc surfaces.

In some embodiments, the first groove is a through groove; and/or the second groove is a through groove.

In some embodiments, among the plurality of first rigid strips and the plurality of second rigid strips which are alternately arranged, the rigid strips located at the head and/or the tail are the second rigid strips; the plurality of rigid strips further includes a third rigid strip having a third groove, and the second rigid strip at the leading or trailing position is located in the third groove.

In some embodiments, the first retaining plate and the second retaining plate each have a plurality of threaded holes.

In a second aspect, a bendable housing is provided, the bendable housing comprising: the first shell, the second shell and the bending mechanism of any of the above embodiments. A first fixing plate in the bending mechanism is fixed on the first shell, and a second fixing plate in the bending mechanism is fixed on the second shell.

In a third aspect, an electronic device is provided, which includes a display screen and the bendable casing of the second aspect, wherein the display screen is fixed on the bendable casing.

In the bending mechanism provided by the first aspect, the rigid core layer of the connecting assembly has higher strength, so that sufficient strength support can be provided for the connecting assembly, and the soft rubber layer is made of a soft material; meanwhile, the soft adhesive layer is formed on the outer surface of the rigid core layer through injection molding, and the rigid core layer is tightly wrapped, namely the connecting assembly is also provided with soft adhesive on one side close to the display screen, so that the impact of external force on the display screen can be effectively reduced. In addition, compared with a coated soft film, the injection-molded soft film layer is more attached to the structure of the rigid core layer, and even if the electronic equipment is in a folded state, the injection-molded soft film layer cannot be separated from the rigid core layer to form 'ribs' on the appearance surface of the electronic equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a block diagram of a folding electronic device in the prior art.

Fig. 2 is a block diagram of an electronic device according to some embodiments of the present invention.

Fig. 3 is a schematic view of a bending mechanism of an electronic device in a flattened state according to some embodiments of the present invention.

Fig. 4 is a schematic view of a bending mechanism of an electronic device in a bending state according to some embodiments of the present invention.

Fig. 5 is a cross-sectional view of a first rigid strip and a second rigid strip in a bending mechanism of an electronic device according to some embodiments of the present invention.

Fig. 6 is a schematic diagram of a first rigid strip and a second rigid strip in a bending mechanism of an electronic device according to some embodiments of the present invention.

Fig. 7 is a cross-sectional view of a third rigid strip in a bending mechanism of an electronic device according to some embodiments of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

Unless the context requires otherwise, throughout the description and the claims, the term "comprise" and its other forms, such as the third person's singular form "comprising" and the present participle form "comprising" are to be interpreted in an open, inclusive sense, i.e. as "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless otherwise specified.

"at least one of A, B and C" has the same meaning as "A, B or at least one of C," each including the following combination of A, B and C: a alone, B alone, C alone, a and B in combination, a and C in combination, B and C in combination, and A, B and C in combination.

"A and/or B" includes the following three combinations: a alone, B alone, and a combination of A and B.

"plurality" means at least two.

The use of "adapted to" or "configured to" herein is meant to be an open and inclusive language that does not exclude devices adapted to or configured to perform additional tasks or steps.

Example embodiments are described herein with reference to cross-sectional and/or plan views as idealized example figures. In the drawings, the thickness of layers and regions are exaggerated for clarity. Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

The embodiment of the utility model provides an electronic equipment can be any products that have the display function such as cell-phone, panel computer, TV set, display, notebook computer, digital photo holder frame, navigator, intelligent wrist-watch. The electronic device is capable of being folded (e.g., collapsed), and may be, for example, a foldable cell phone, a foldable tablet computer, or the like.

Fig. 2 illustrates an electronic device E2 provided by some embodiments of the present invention. Wherein, electronic equipment E2 includes: shell H and display screen D can buckle, and wherein, display screen D fixes on shell H can buckle. Further, the electronic device E2 may also include electronic components, a power supply system, and the like.

The bendable housing H is configured to fix the display screen D, including: a first housing 100 and a second housing 200, and a bending mechanism 300. The first casing 100 and the second casing 200 are located on two opposite sides of the bending mechanism 300 and connected by the bending mechanism 300. For example, when the electronic device E2 is in the flat state shown in fig. 2, the bending mechanism 300 of the bendable housing H is in the flat state, and the first casing 100 and the second casing 200 may be in the same plane; if the electronic device E2 is in the bent state, the bending mechanism 300 of the bendable casing H is in the bent state, for example, the bendable casing H can be bent inward along the NN direction shown in fig. 2, so that the second casing 200 is turned upward, and after the second casing 200 is turned, the display screen D can be sandwiched between the first casing 100 and the second casing 200; alternatively, the foldable housing H may be folded outward along the WW direction shown in fig. 2, so that the second casing 200 is turned downward, and after the second casing 200 is turned, the display screen D may sandwich the first casing 100 and the second casing 200.

The display D is configured to display a screen, and the display D may be fixed to the bendable housing H by an adhesive or the like. Illustratively, the display screen D may be a flexible display screen, and if the bendable housing H is in the flattened state shown in fig. 2, the display screen D is also in the flattened state shown in fig. 2; if the bendable shell H is bent, the display screen D can be bent along with the bendable shell H. As a further example, the display D in the electronic device E2 may also be a rigid display. For example, when the display screen D is a rigid display screen, the display screen D may be fixed on one of the shells (the first shell 100 or the second shell 200) of the bendable shell H, and when the bendable shell H is in a flat state, the display screen does not overlap with the bendable part of the bending mechanism 300 in the thickness direction, so as to prevent the bending performance of the bending mechanism 300 from being affected.

Next, the structure of the bending mechanism 300 in the bendable housing H will be described in detail.

Referring to fig. 2, the bending mechanism 300 is configured to connect the first casing 100 and the second casing 200 and provide support between the first casing 100 and the second casing 200 during bending of the electronic device E2. Fig. 3 and 4 show the bending mechanism 300 of the electronic device E2 of the above embodiment, wherein the bending mechanism 300 shown in fig. 3 is in a flattened state, and (b) in fig. 3 is a cross-sectional view of the bending mechanism 300 taken along a section line a-a in fig. 3 (a); fig. 4 shows the bending mechanism 300 in a bent state when the electronic device E2 is bent in the NN direction or the WW direction.

Referring to fig. 2 and 3, the bending mechanism 300 includes: a first fixing plate 310, a second fixing plate 320, and a connecting assembly 330. The first fixing plate 310 of the bending mechanism 300 is fixed on the first housing 100, and the second fixing plate 320 of the bending mechanism 300 is fixed on the second housing 200. For example, the first fixing plate 310 may be fixedly coupled to the first housing 100 by screws. For example, the first fixing plate 310 has at least one (e.g., a plurality of) first threaded holes 311 thereon, and the first housing 100 has at least one (e.g., a plurality of) second threaded holes thereon, and the first fixing plate 310 can be fixedly coupled to the first housing 100 by screws threadedly coupled to both the first threaded holes 311 and the corresponding second threaded holes. Similarly, the connection manner of the second fixing plate 320 and the second housing 200 can refer to the connection manner of the first fixing plate 310 and the first housing 100, and the description thereof is omitted.

The first and second fixing plates 310 and 320 may be rigid plates, for example, metal plates, such as stainless steel plates, etc.; but also hard plastics such as thermosetting plastics and the like.

The connecting assembly 330 is configured to connect the first fixing plate 310 and the second fixing plate 320, wherein the connecting assembly 330 includes a first end 330a and a second end 330b which are oppositely disposed, the first end 330a is connected with the first fixing plate 310, the second end 330b is connected with the second fixing plate 320, and the connecting assembly 330 is bendable such that an included angle between the second fixing plate 320 and the first fixing plate 310 is adjustable.

The connecting assembly 330 is a main component of the bending mechanism 300, and the connecting assembly 330 has flexibility, and the connecting assembly 330 can be bent along an axis between the first end portion 330a and the second end portion 330b to generate bending deformation, for example, the connecting assembly 330 can be bent along an OO axis shown in (a) in fig. 3, and after bending, can assume a bending state shown in fig. 4. After the connecting assembly 330 is fixed to the first fixing plate 310 and the second fixing plate 320, the connecting assembly 330 can drive the first fixing plate 310 and the second fixing plate 320 fixed thereto to move relatively around the axis, so as to change the spatial position orientation of the first fixing plate 310 and the second fixing plate 320, and thus the included angle between the first fixing plate 310 and the second fixing plate 320 is adjustable. The included angle between the first fixing plate 310 and the second fixing plate 320 is an included angle formed by normal lines of respective planes of the first fixing plate 310 and the second fixing plate 320. When the bending mechanism 300 is in the flat state, an included angle between the first fixing plate 310 and the second fixing plate 320 is 0 °, and when the bending mechanism 300 is in the bending state, for example, the bending mechanism 300 bends along the NN direction, the included angle between the first fixing plate 310 and the second fixing plate 320 may be 0 ° to 180 °, and at this time, the bendable housing H drives the display screen D to bend along the NN direction; for another example, the bending mechanism 300 bends along the WW direction, and an included angle between the first fixing plate 310 and the second fixing plate 320 may be 0 ° to 180 °, at this time, the bendable housing H drives the display screen D to bend along the WW direction.

For example, when the first fixing plate 310 and the second fixing plate 320 are made of hard plastic, the first end 330a and the second end 330b of the connecting assembly 330 may be connected to the first fixing plate 310 and the second fixing plate 320 by gluing, for example, using glue; further exemplarily, when the first fixing plate 310 and the second fixing plate 320 are made of metal, the first end 330a and the second end 330b of the connecting assembly 330 may be connected to the first fixing plate 310 and the second fixing plate 320, respectively, by mold-open injection.

The connecting assembly 330 comprises a rigid core layer 331 and a soft rubber layer 332, wherein the soft rubber layer 332 is formed by injection molding of soft rubber and wraps the rigid core layer 331. The rigid core layer 331 may be made of a high-strength and high-hardness material, wherein the high-strength and high-hardness material means that the member produced by using the material has high strength and high hardness, i.e., does not deform under an external force, and the rigid core layer 331 may be made of a metal, such as stainless steel, cast iron, or the like. The rigid core 331 may be a mechanical structure having a complex shape, and illustratively, the rigid core 331 may be interconnected links, such as a chain. The soft adhesive layer 332 may play a certain role in buffering and protecting the rigid core layer 331. The soft rubber material used in the soft rubber layer 332 needs to meet the requirement of the connection assembly 330 on the stretching rate of the soft rubber material when being bent, and meanwhile, the selected soft rubber material also needs to have good deformation recovery capability, and exemplarily, the soft rubber material may be soft polyvinyl chloride (PVC), soft silica gel, or a thermoplastic elastomer (TPE), such as thermoplastic polyurethane elastomer rubber (TPU).

The rigid core layer 331 of the connecting assembly 330 has high strength, which can provide sufficient strength support for the connecting assembly 330, and meanwhile, the soft adhesive layer 332 is made of soft rubber, and the soft rubber has soft characteristics relative to the hard rubber, so that when the connecting assembly 330 is impacted by external force, the rigid impact generated by the rigid core layer 331 can be buffered and absorbed through the elastic deformation of the soft adhesive layer 332, thereby providing strong impact resistance for the connecting assembly 330; meanwhile, the soft adhesive layer 332 is formed on the outer surface of the rigid core layer 331 through injection molding, the rigid core layer 331 is tightly wrapped, and soft adhesive is arranged on one side close to the display screen D, so that the impact of external force on the display screen D can be effectively reduced. In addition, compared with a coated soft film, the injection molded soft film layer 332 is more attached to the structure of the rigid core layer 331, and even when the electronic device E2 is in a folded state, the injection molded soft film layer is not peeled off from the rigid core layer 331 to form a 'rib' on the appearance surface of the electronic device E2, thereby affecting the use feeling of a user.

In some embodiments, the rigid core 331 of the connection assembly 330 includes: a plurality of rigid bars arranged in sequence along a first direction, wherein the first direction is a direction in which the first end 330a of the connecting member 330 points to the second end 330b of the connecting member 330. In the following description, unless the mechanism described is specifically indicated to be in a bent state, the "first direction" and "second direction" used herein are described based on the mechanism being in a flattened state.

The rigid strip refers to a rigid member extending along a certain direction, the size of the rigid strip in the extending direction is larger than the sizes of the other two directions orthogonal to the extending direction, wherein the rigid member refers to a member which does not deform with naked eyes when being acted by external force. The cross section of the rigid strip can be any geometric figure, and the geometric figure can comprise a straight edge and a curved edge, for example, the cross section of the rigid strip is rectangular, circular and the like. The arrangement of the plurality of rigid strips in the first direction may be equally spaced, see for example fig. 3, or unequally spaced.

When the rigid core 331 of the connecting member 330 is formed by a plurality of rigid strips arranged along the first direction, the bending of the connecting member 330 can be accomplished by changing the position of each rigid strip and then by the deformation of the soft rubber layer 332. Since the plurality of rigid strips of the rigid core layer 331 do not deform themselves during the bending process of the connecting assembly 330, but only change the positions of the rigid strips, for example, rotate in a plane perpendicular to the extending direction of the rigid strips, the rigid core layer 331 is not easy to fail after being bent for many times, which is beneficial to improving the service life of the bending mechanism 300.

In some embodiments, the plurality of rigid strips constituting the rigid core layer 331 of the connecting assembly 330 includes a plurality of first rigid strips 331a and a plurality of second rigid strips 331b arranged alternately, wherein each of the first rigid strips 331a includes a first side surface provided with a first groove and a second side surface provided with a second groove, wherein the first side surface and the second side surface are two opposite side surfaces along the first direction.

The first and second rigid strips 331a and 331b have different cross-sectional shapes, and the first and second rigid strips 331a and 331b are alternately arranged in the first direction. The cross-sectional shape of the first groove on the first side of the first rigid strip 331a may be different from or the same as the cross-sectional shape of the second groove on the second side, and for example, when the cross-sectional shape of the first groove is the same as the cross-sectional shape of the second groove, the cross-section of the first rigid strip 331a may have an axisymmetric pattern.

Each second rigid strip 331b includes a first protruding portion and a second protruding portion, wherein the first protruding portion protrudes into the first recess of one first rigid strip adjacent to the second rigid strip, and the second protruding portion protrudes into the second recess of the other first rigid strip adjacent to the second rigid strip.

Illustratively, when the first rigid strips 331a and the second rigid strips 331b are alternately arranged along the first direction, the position of the first rigid strip in the first direction is referred to as a leading bit, and the position of the last rigid strip in the first direction is referred to as a trailing bit. When the second rigid strips 331b are located at positions other than the leading and trailing positions, each second rigid strip 331b is sandwiched between two first rigid strips 331a, i.e., each second rigid strip 331b is adjacent to the second groove of one first rigid strip 331a and the first groove of the other first rigid strip 331a, respectively. The first protruding portion of second rigid strip 331b is adjacent to the first indentation of first rigid strip 331a adjacent thereto, and the second protruding portion of second rigid strip 331b is adjacent to the second indentation of first rigid strip 331a adjacent thereto. The volume of the first protruding portion may be smaller than the receiving volume formed by the first recess, so that at least a portion of the first protruding portion may be received in one of the first recesses, and similarly, the volume of the second protruding portion may be smaller than the receiving volume formed by the second recess, so that at least a portion of the second protruding portion may be received in one of the second recesses. In addition, the cross-sectional shapes of the first and second extending portions may be the same or different, for example, when the cross-sectional shapes of the first and second extending portions are the same, the cross-section of the second rigid strip may be an axisymmetric pattern.

Fig. 5 shows a cross-sectional view of a first rigid strip 331a and a second rigid strip 331b in some embodiments of the invention, wherein (a) in fig. 5 is a cross-section of the first rigid strip 331a and (b) in fig. 5 is a cross-section of the second rigid strip 331b, both cross-sections being axisymmetric, the axes of symmetry of which are shown by dashed lines in the figure. The cross-section of the first rigid strip 331a is a geometric figure consisting of curved and straight sides, and the cross-section of the second rigid strip 331b is rectangular. Taking the second groove of the first rigid strip 331a as an example, the second protruding portions formed on the surfaces d, e, and f of the second rigid strip 331b can be received in the second grooves formed on the surfaces a, b, and c of the first rigid strip 331a, and similarly, the first protruding portion of the second rigid strip 331b can protrude into the first groove. When the connecting member 330 is bent, the first rigid strip 331a and the second rigid strip 331b of the rigid core 331 can rotate in a plane perpendicular to the respective extending directions to adapt to the bent shape of the connecting member 330. However, due to the size of the first and second grooves and the first and second protruding portions, a spacing function is generated between the first and second grooves and the first and second protruding portions, for example, referring to fig. 5 and 6, when the first and second rigid strips 331a and 331b rotate to a certain angle, an edge formed by intersecting surfaces d and e of the second rigid strip 331b is caught on a surface c of the first rigid strip 331a, and an edge formed by intersecting surfaces a and b of the first rigid strip 331a is caught on a surface f of the second rigid strip 331 b. Thus, the rotation of the first and second rigid bars 331a and 331b is limited to a certain range, and when the rotation exceeds the certain range, the first and second rigid bars 331a and 331b cannot rotate continuously, so that the connecting component 330 cannot bend continuously, and the bending of the bending mechanism 300 is limited to a fixed angle range.

For example, when the bending mechanism 300 bends, for example, the bending mechanism 300 bends along the NN direction shown in fig. 2, when the bending mechanism is bent to a fixed angle, due to the limiting function between the first rigid strip 331a and the second rigid strip 331b in the connecting component 330, the bending mechanism 300 cannot be bent continuously even if the force is continuously applied to the NN direction. At this time, the bend of the bending mechanism 300 is fixed at this angle, which is referred to as a "support angle". The "support angle" refers to an included angle between the first fixing plate 310 and the second fixing plate 320 when the bending mechanism 300 cannot be bent continuously in a bending direction.

Since the bending mechanism 300 can be bent in different directions, for example, the bending mechanism 300 can be bent in the NN direction and the WW direction shown in fig. 2, when the bending mechanism 300 cannot be bent further in one direction, it can also be bent further in the other direction, but the bending in the other direction can also be affected by the limiting effect of the plurality of rigid strips in the rigid core layer 331, so that the bending of the bending mechanism 300 in the other direction is also limited within a fixed range. Therefore, when the bending mechanism 300 bends along different directions, it can correspond to a "support angle" respectively.

Illustratively, the "support angle" at which the bending mechanism 300 bends in different directions is the same. For example, referring to fig. 2 and 3, when the first rigid strip 331a and the second rigid strip 331b in the rigid core layer 331 are both axisymmetric patterns, the bending angle of the bending mechanism 300 in the NN direction is the same as the "support angle" of the bending in the WW direction.

When the included angle between the first fixing plate 310 and the second fixing plate 320 of the bending mechanism 300 is fixed at the supporting angle, the spatial states of the first casing 100 and the second casing 200 connected to the first fixing plate 310 and the second fixing plate 320 are also fixed, so that the electronic device E2 has "self-supporting" performance.

In some embodiments, two surfaces of the first rigid strip 331a opposite to each other in the thickness direction of the connecting member 330 are convex arc surfaces. Illustratively, referring to fig. 5 (a), the g, h surfaces of the first rigid strip 331a are each protruded to both surfaces in the thickness direction of the connecting member 330. When the connecting assembly 330 is in a bent state, the convex arc surface of the first rigid strip 331a can better conform to the radian of the soft rubber during bending, as shown in fig. 4. The convex arc surface can alleviate stress concentration between the edge of the first rigid strip 331a and the soft rubber layer 332 in the connecting assembly 330, and particularly, when the connecting assembly 330 is in a bent state, one stretched surface may be cut by the edge of the first rigid strip 331a, so that the soft rubber layer 332 is damaged.

In some embodiments, the first groove of first rigid strip 331a is a through-slot and/or the second groove of first rigid strip 331a is a through-slot.

When the length of the first groove of the first rigid strip 331a in the extending direction of the first rigid strip 331a is the same as the length of the first rigid strip 331a in the extending direction, that is, the first groove communicates with two surfaces of the first rigid strip 331a opposite to each other in the extending direction, such first groove is called a through groove; when the length of the first groove of the first rigid strip 331a in the extending direction of the first rigid strip 331a is smaller than the length of the first rigid strip 331a in the extending direction, that is, the first groove does not communicate with the two surfaces of the first rigid strip 331a opposite to each other in the extending direction, such first groove is called a blind groove. The first grooves of the first rigid strips 331a can be either through grooves or blind grooves.

Similarly, the second groove of the first rigid strip 331a may be a through groove or a blind groove.

When the plurality of rigid strips of the rigid core layer 331 of the connecting assembly 330 are dislocated in the extending direction thereof, the blind grooves easily block the rotation of the rigid strips, thereby causing a jamming phenomenon.

In some embodiments, in the alternating arrangement of the first and second rigid strips, when the first and/or last rigid strip is the second rigid strip, the rigid core layer 331 may further include a third rigid strip 331c, the third rigid strip 331c having a third groove, and the first or last rigid strip being located in the third groove. As shown in fig. 3 (b) and 7, the third rigid strip 331c includes a surface m, which may be parallel to two surfaces of the connecting assembly 330 opposite to each other in the first direction, so that the difficulty of injection molding the soft adhesive layer 332 is reduced.

In addition, since the plurality of rigid strips of the rigid core layer 331 rotate in a plane perpendicular to the extending direction of the rigid strips during the bending process of the connecting assembly 330, the positions of the plurality of rigid strips are not fixed, which requires a certain displacement space for the plurality of rigid strips in the soft rubber layer 332. Therefore, the soft adhesive layer 332 cannot be directly injection-molded on the outer surface of the rigid core layer 331, and the direct injection molding may affect the smoothness of the movement between the rigid strips. For example, the injection molding of the soft glue layer 332 may be completed by trimming a mold, for example, during the injection molding, a temporary mechanism is added in the mold, and after the injection molding is completed, the temporary mechanism is taken out, so that an accommodating space with a volume larger than that of the plurality of rigid strips is manufactured in the soft glue layer 332.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A bending mechanism, comprising:

a first fixing plate and a second fixing plate;

the connecting assembly comprises a first end and a second end which are oppositely arranged, the first end is connected with the first fixing plate, the second end is connected with the second fixing plate, and the connecting assembly can be bent, so that an included angle between the second fixing plate and the first fixing plate can be adjusted;

wherein, the coupling assembling includes: the soft rubber layer is formed by injection molding and wraps the rigid core layer.

2. The bending mechanism according to claim 1,

the rigid core layer includes: the rigid bars are sequentially arranged along a first direction, and the first direction is a direction in which the first end part points to the second end part.

3. The bending mechanism according to claim 2,

the plurality of rigid strips comprises: a plurality of first rigid strips and a plurality of second rigid strips which are alternately arranged;

each first rigid strip comprises a first side face and a second side face, a first groove is formed in the first side face, a second groove is formed in the second side face, and the first side face and the second side face are two opposite side faces in the first direction;

every second rigidity strip includes first portion and the second portion of stretching into, first portion of stretching into stretch into with one that the second rigidity strip is adjacent in the first recess of first rigidity strip, the second stretch into the portion with another that the second rigidity strip is adjacent in the second recess of first rigidity strip.

4. The bending mechanism according to claim 3,

the cross section of the first rigid strip is an axisymmetric figure, and the symmetry axis is parallel to the second direction;

and/or the presence of a gas in the gas,

the cross section of the second rigid strip is an axisymmetric figure, and the symmetry axis is parallel to the second direction;

wherein the second direction is perpendicular to the first direction.

5. The bending mechanism according to claim 3,

the first rigid strip is along two surfaces opposite to each other in the thickness direction of the connecting component are convex arc surfaces.

6. The bending mechanism according to claim 3,

the first groove is a through groove;

and/or;

the second groove is a through groove.

7. The bending mechanism according to claim 3,

in the plurality of first rigid strips and the plurality of second rigid strips which are alternately arranged, the rigid strips positioned at the head and/or the tail are the second rigid strips;

the plurality of rigid strips further comprises: a third rigid strip having a third groove, the second rigid strip at the leading or trailing position being located in the third groove.

8. The bending mechanism according to claim 1,

the first and second fixing plates each have a plurality of threaded holes.

9. A bendable housing, comprising:

a first housing and a second housing;

the bending mechanism of any one of claims 1 to 8; and a first fixing plate in the bending mechanism is fixed on the first shell, and a second fixing plate in the bending mechanism is fixed on the second shell.

10. An electronic device, comprising:

the bendable housing of claim 9;

the display screen is fixed on the bendable shell.

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