Hinge device and intelligent terminal

Abstract

The application provides a hinge device and a smart terminal. The hinge device comprises a rotating shaft assembly and a supporting plate assembly. The rotating shaft assembly comprises a main body and at least two rotating shafts, and the rotating shafts are arranged to rotate relative to the main body. The supporting plate assembly comprises a first supporting plate, and the first supporting plate comprises a supporting surface for carrying a flexible display screen. At least one of the first supporting plate and the rotating shafts is connected and moves relative to the rotating shafts to face the supporting surface or deviate from the supporting surface with the rotation of the rotating shafts, and the moving track of the first supporting plate is between the two rotating shafts. In the process of gradually folding from the unfolded state, the first supporting plate moves relative to the rotating shafts to deviate from the supporting surface with the rotation of the rotating shafts, so as to avoid the flexible display screen and provide an expansion space, the bent part of the flexible display screen can be freely expanded after folding, the bent part is prevented from being squeezed, the crease is not easily formed on the flexible display screen, and the service life of the flexible display screen is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a hinge device and a smart terminal. BACKGROUND

[0002] The smart terminal with foldable screen includes a hinge and a flexible display screen, the flexible display screen is arranged on the hinge, and the two opposite folding parts of the flexible display screen are hinged by the hinge to facilitate the flattening or folding of the flexible display screen.

[0003] In the process of conceiving and implementing the present application, the inventors have found that in the foldable smart terminal, the hinge includes a rotating shaft and a floating plate, in the process of gradually flattening the flexible display screen from closing, the rotating shaft rotates and abuts against the floating plate towards the flexible display screen to support the display screen by the floating plate. However, in the process of gradually closing the flexible display screen from flattening, the flexible display screen is pressed at the folding position, thereby causing the flexible display screen to easily form a deep crease.

[0004] The foregoing narrative is to provide general background information and does not necessarily constitute the prior art. SUMMARY

[0005] To solve the above technical problems, the present application provides a hinge device and a smart terminal to solve the problem that the smart terminal is easy to form a deep crease on the flexible display screen after being folded inward.

[0006] To solve the above technical problems, the present application provides a hinge device, which includes a rotating shaft assembly and a supporting plate assembly, the rotating shaft assembly includes a main body and at least two rotating shafts, the rotating shafts are arranged to rotate relative to the main body; the supporting plate assembly includes a first supporting plate, the first supporting plate includes a supporting surface for bearing the flexible display screen; at least one of the first supporting plate and the rotating shafts is connected and moves relative to the rotating shaft towards the side facing the supporting surface or the side away from the supporting surface with the rotation of the rotating shaft, and the moving track of the first supporting plate is located between the two rotating shafts.

[0007] Optionally, when the rotating shafts rotate towards each other, the rotating shafts drive the first supporting plate to move in the direction away from the supporting surface.

[0008] Optionally, when the rotating shafts rotate away from each other, the rotating shafts drive the first supporting plate to move in the direction facing the supporting surface.

[0009] Optionally, the rotating shaft assembly further includes a first driving member, the first driving member and at least one of the rotating shafts are correspondingly arranged and used to drive the first supporting plate to move synchronously when the rotating shaft rotates.

[0010] Optionally, the first driving member comprises at least one gear, an axis of the gear is parallel to an axis of the rotating shaft, and the gear is engaged with the first supporting plate.

[0011] Optionally, the supporting plate assembly further comprises at least one second driving member, the second driving member is engaged with the gear.

[0012] Optionally, the second driving member comprises at least one rack, an extending direction of the rack is perpendicular to the first supporting plate, and the rack is engaged with the gear.

[0013] Optionally, the first driving member is arranged on at least two rotating shafts, and the second driving member is arranged correspondingly to the first driving member.

[0014] Optionally, the hinge device further comprises a stretching mechanism, the stretching mechanism is configured to apply a pulling force to the first supporting plate when the rotating shafts rotate towards each other, and a direction of the pulling force is away from the bearing surface.

[0015] Optionally, the stretching mechanism comprises an elastic stretching member, the elastic stretching member is arranged on at least one of the rotating shafts, and an end of the elastic stretching member is connected to the first supporting plate; when the rotating shafts rotate towards each other, the elastic stretching member is stretched.

[0016] Optionally, the elastic stretching member comprises a torsion spring, the torsion spring is arranged on at least one of the rotating shafts, and the torsion spring has a hook portion, the hook portion is connected to the first supporting plate.

[0017] Optionally, a side of the first supporting plate away from the bearing surface is provided with a limiting member, a limiting passage is formed between the limiting member and the first supporting plate, the hook portion is arranged in the limiting passage, and an end of the hook portion abuts against the first supporting plate.

[0018] Optionally, the supporting plate assembly further comprises a second supporting plate and a third supporting plate, the second supporting plate and the third supporting plate are respectively connected to one of the rotating shafts, the second supporting plate comprises a first abutting surface for abutting against the flexible display screen, and the third supporting plate comprises a second abutting surface for abutting against the flexible display screen.

[0019] Optionally, when the hinge device is in an unfolded state, the bearing surface, the first abutting surface and the second abutting surface are flush.

[0020] Optionally, when the hinge device is in a folded state, the first abutting surface and the second abutting surface each have an included angle with the bearing surface.

[0021] Optionally, the stretching mechanism comprises a first connecting member, an elastic member and a second connecting member, the first connecting member is arranged on a side of the first supporting plate away from the bearing surface, the first connecting member is movably connected with the main body, and the first connecting member is movable relative to the main body towards a direction facing the first supporting plate or a direction away from the first supporting plate; the elastic member is arranged between the main body and the first connecting member; one end of the second connecting member in the extending direction is connected with the first supporting plate, and the other end is connected with the first connecting member.

[0022] Optionally, the second supporting plate and the third supporting plate are movably connected with the rotating shaft through swing arms, and when the rotating shaft rotates towards each other, the swing arms abut against the main body in a direction away from the bearing surface.

[0023] The application further provides a smart terminal comprising the hinge device.

[0024] As described above, the hinge device and the smart terminal provided by the application comprise a rotating shaft assembly and a supporting plate assembly, the rotating shaft assembly comprises a main body and at least two rotating shafts, and the rotating shafts are movably arranged relative to the main body; the supporting plate assembly comprises a first supporting plate, and the first supporting plate comprises a bearing surface for bearing a flexible display screen; at least one of the first supporting plate and the rotating shafts is connected and movable relative to the rotating shafts towards a side facing the bearing surface or a side away from the bearing surface with the rotation of the rotating shafts, and the moving track of the first supporting plate is located between the two rotating shafts. Through the above technical solution, in the process of gradually folding from the unfolded state, the first supporting plate moves relative to the rotating shafts towards a side away from the bearing surface with the rotation of the rotating shafts, i.e. the first supporting plate moves away from the flexible display screen to avoid the flexible display screen, so that the bending part of the flexible display screen can freely stretch after folding, the bending part is avoided from being squeezed, and the creases are avoided from being formed on the flexible display screen, thereby prolonging the service life of the flexible display screen. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the application and, together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the following embodiment description will be briefly introduced. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0026] Figure 1 is a structural schematic diagram of a smart terminal provided by an embodiment of the application in an unfolded state;

[0027] Figure 2 is a structural schematic diagram of a hinge device provided by an embodiment of the application;

[0028] Figure 3 is a structural schematic diagram of a smart terminal after folding according to an embodiment of the present application;

[0029] Figure 4 is a sectional view of the smart terminal when unfolded according to an embodiment of the present application;

[0030] Figure 5 is a sectional view of the smart terminal after folding according to an embodiment of the present application;

[0031] Figure 6 is a structural schematic diagram of a hinge device according to an embodiment of the present application;

[0032] Figure 7 is a sectional view of the hinge device when unfolded according to an embodiment of the present application;

[0033] Figure 8 is a structural schematic diagram of a first supporting plate and a limiting member in the hinge device according to an embodiment of the present application;

[0034] Figure 9 is a sectional view of the hinge device when unfolded according to an embodiment of the present application;

[0035] Figure 10 is a sectional view of the hinge device when folded according to an embodiment of the present application;

[0036] Figure 11 is a hardware structural schematic diagram of a mobile terminal according to an embodiment of the present application.

[0037] In the drawings:

[0038] 10, hinge device; 110, rotating shaft assembly; 111, main body; 112, rotating shaft; 113, gear;

[0039] 120, supporting plate assembly; 121, first supporting plate; 1211, bearing surface; 1212, gear rack; 122, limiting member; 1221, limiting channel; 1222, connecting column; 1223, limiting column; 123, second supporting plate; 1231, first adhering surface; 124, third supporting plate; 1241, second adhering surface; 130, torsion spring; 131, hook portion;

[0040] 141, connecting plate; 142, spring; 143, bolt; 150, swing arm;

[0041] 20, flexible display screen;

[0042] 300 - mobile terminal; 301 - radio frequency unit; 302 - WiFi module; 303 - audio output unit; 304 - A / V input unit; 3041 - graphic processor; 3042 - microphone; 305 - sensor; 306 - display unit; 3061 - display panel; 307 - user input unit; 3071 - touch panel; 3072 - other input device; 308 - interface unit; 309 - memory; 310 - processor; 311 - power supply.

[0043] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in conjunction with the drawings. The above-described drawings have shown the explicit embodiments of the present application, and will be described in more detail hereinafter. These drawings and the written description are not intended to limit the scope of the present application in any way, but to explain the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] The exemplary embodiments will be described in detail with reference to the drawings. In the following description, the same drawing reference numerals are used to denote elements in different drawings. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0045] It should be noted that, in this document, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element. Optionally, components, features, elements with the same name in different embodiments can have the same meaning or different meanings, and the specific meaning thereof should be determined in the light of its explanation in the specific embodiment or further in conjunction with the context in the specific embodiment.

[0046] It should be understood that, although the terms first, second, third, etc. can be employed in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to differentiate one piece of information from another. For example, a first information can also be termed a second information, similarly, a second information can also be termed a first information without departing from the scope of this disclosure. Depending on the context, the word "if' as used herein can be interpreted to mean "when" or "upon" or "in response to the determination" or "in response to the detection". Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", as used herein, specify the presence of stated features, steps, operations, elements, components, items, and / or groups but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, items, and / or groups thereof. The term "or", "and / or", "at least one of", and the like as used herein can be interpreted to be inclusive, or to mean any one or any combination of the listed items. For example, the phrase "at least one of A, B, and C" can mean "A, B, C, A and B, A and C, B and C, or A and B and C". Similarly, the phrase "A, B, or C" or "A, B, and / or C" can mean "A, B, C, A and B, A and C, B and C, or A and B and C". Exceptions to this definition can occur only when a combination of elements, functions, steps or actions are in some way inherently mutually exclusive.

[0047] Depending on the context, the word "if' as used herein can be interpreted to mean "when" or "upon" or "in response to the determination" or "in response to the detection". Similarly, depending on the context, the phrase "if determined" or "if detected (a stated condition or event)" can be interpreted to mean "when determined" or "in response to the determination" or "when detected (a stated condition or event)" or "in response to the detection (a stated condition or event)".

[0048] In the following description, the suffixes "module", "part", or "unit" used for components are merely intended for facilitating explanation of the application, and have no specific meaning by themselves. Thus, "module", "part", or "unit" can be used interchangeably.

[0049] As described in the background section, the foldable intelligent terminal in the related art is prone to form a deep crease on the flexible display screen after folding inward. The inventor has found that the reason for this problem is that the middle floating plate cannot move away from the flexible display screen during the process of gradually folding from flat, and the flexible display screen is squeezed at the folding position, thereby causing the flexible display screen to be prone to form a deep crease.

[0050] In view of the above technical problems, the hinge device and the intelligent terminal are provided, the first supporting plate is connected with the rotating shaft, and the first supporting plate moves away from the bearing surface with the rotating shaft in the process of gradually folding the flexible display screen, so that the flexible display screen is not pressed at the folding position, and the deep creases are avoided.

[0051] The principles and characteristics of the embodiments of the present application are described below in combination with the drawings, and it should be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the scope of the present application.

[0052] Please refer to Figure 1 , the intelligent terminal provided by the embodiments of the present application includes a flexible display screen 20 and a hinge device 10, the flexible display screen 20 can be bent under the action of external force, and the hinge device 10 is used to bear the flexible display screen 20.

[0053] Please refer to Figure 2 , the hinge device 10 includes a rotating shaft assembly 110 and a supporting plate assembly 120, the rotating shaft assembly 110 includes a main body 111 and at least two rotating shafts 112, and the rotating shaft 112 is arranged to rotate relative to the main body 111, so that the two rotating shafts 112 can rotate relative to the main body 111 with the axis of the rotating shaft as the center.

[0054] The supporting plate assembly 120 includes a first supporting plate 121, the first supporting plate 121 includes a bearing surface 1211 for bearing the flexible display screen 20, and the first supporting plate 121 is connected with at least one of the rotating shafts 112. Optionally, the first supporting plate 121 can be connected with one of the two rotating shafts 112, or the first supporting plate 121 can be connected with both of the two rotating shafts 112, the first supporting plate 121 moves relative to the rotating shaft 112 to the side facing the bearing surface 1211 or the side away from the bearing surface 1211 with the rotation of the rotating shaft 112, and the moving track of the first supporting plate 121 is located between the two rotating shafts 112.

[0055] Optionally, the hinge device 10 has an unfolded state (see Figure 1 ) and a folded state (see Figure 3 ), in the process of gradually folding from the unfolded state, the first supporting plate 121 moves away from the bearing surface 1211 with the rotation of the rotating shaft 112. That is, the first supporting plate 121 moves away from the flexible display screen 20 to avoid the flexible display screen 20, so that the bending part of the flexible display screen 20 can freely stretch after folding, the bending part is avoided to be pressed, the creases are avoided to be formed on the flexible display screen 20, and the service life of the flexible display screen 20 is prolonged.

[0056] Optionally, in the process of gradually unfolding from the folded state, the first supporting plate 121 moves relative to the rotating shaft 112 towards the side of the bearing surface 1211, i.e. the first supporting plate 121 moves towards the flexible display 20, to support the flexible display 20 after the flexible display 20 is unfolded.

[0057] With reference to the foregoing Figure 2 Optionally, the supporting plate assembly 120 can further include a second supporting plate 123 and a third supporting plate 124, the second supporting plate 123 and the third supporting plate 124 are respectively connected with one of the two rotating shafts 112, i.e. the second supporting plate 123 is connected with one of the two rotating shafts 112, and the third supporting plate 124 is connected with the other of the two rotating shafts 112. The second supporting plate 123 has a first abutting surface 1231 for abutting with the flexible display 20, and the third supporting plate 124 has a second abutting surface 1241 for abutting with the flexible display 20.

[0058] Optionally, when the hinge device 10 is in the unfolded state, the bearing surface 1211, the first abutting surface 1231 and the second abutting surface 1241 are flush to support the unfolded flexible display 20. Optionally, when the hinge device 10 is in the folded state, the first abutting surface 1231 and the second abutting surface 1241 each have an angle with the bearing surface 1211 to fold the flexible display 20.

[0059] Optionally, when the two rotating shafts 112 rotate simultaneously, the rotating shaft 112 can drive the first supporting plate 121 to move in the following manner: when the two rotating shafts 112 rotate towards each other, the rotating shaft 112 drives the first supporting plate 121 to move away from the bearing surface 1211; when the two rotating shafts 112 rotate away from each other, the rotating shaft 112 drives the first supporting plate 121 to move towards the bearing surface 1211. Optionally, when one of the two rotating shafts 112 rotates while the other does not, the rotating shaft 112 can drive the first supporting plate 121 to move in the following manner: when one of the two rotating shafts 112 rotates towards the other side of the other rotating shaft 112 away from the bearing surface 1211, the rotating shaft 112 drives the first supporting plate 121 to move away from the bearing surface 1211; when one of the two rotating shafts 112 rotates towards the other side of the other rotating shaft 112 towards the bearing surface 1211, the rotating shaft 112 drives the first supporting plate 121 to move towards the bearing surface 1211.

[0060] In some embodiments, the first supporting plate 121 and the rotating shaft 112 can be connected in the following manner: the circumferential side wall of the rotating shaft 112 can be provided with at least one gear tooth, and the at least one gear tooth can be arranged along the circumference of the rotating shaft 112. The first supporting plate 121 can have a preset thickness, and the first supporting plate 121 can be located between two rotating shafts 112. The side of the first supporting plate 121 facing the rotating shaft 112 can be provided with at least one matching tooth, and the at least one matching tooth can be arranged along a direction perpendicular to the bearing surface 1211. The gear tooth and the matching tooth can be engaged to drive the first supporting plate 121 to move when the rotating shaft 112 rotates.

[0061] In some embodiments, the first supporting plate 121 and the rotating shaft 112 can be connected in the following manner: the rotating shaft assembly 110 can further include at least one first driving member, and the first driving member and the at least one rotating shaft 112 can be correspondingly arranged. The first driving member can be used to drive the first supporting plate 121 to move synchronously when the rotating shaft 112 rotates.

[0062] Please refer to Figure 4 and Figure 5 In some implementations, the first driving member can include a gear 113, and the axis of the gear 113 can be parallel to the axis of the rotating shaft 112. The gear 113 can rotate with the rotating shaft 112. For example, the axis of the gear 113 and the axis of the rotating shaft 112 can be arranged in the same line. The rotating shaft 112 can pass through the gear 113, and the gear 113 can rotate with the rotating shaft 112. Alternatively, the circumferential side wall of the rotating shaft 112 can be provided with a plurality of transmission teeth, and the gear 113 and the transmission teeth can be engaged to enable the gear 113 to rotate with the rotating shaft 112. Optionally, the gear 113 can be further engaged with the first supporting plate 121 to drive the first supporting plate 121 to move towards or away from the bearing surface 1211.

[0063] In some embodiments, the gear 113 can be directly engaged with the first supporting plate 121. Optionally, the first supporting plate 121 can have a preset thickness, and the first supporting plate 121 can be located between two rotating shafts 112. The side of the first supporting plate 121 facing the rotating shaft 112 can be provided with a plurality of connecting teeth, and the plurality of connecting teeth can be arranged along a direction perpendicular to the bearing surface 1211. The gear 113 and the connecting teeth can be engaged.

[0064] In some embodiments, the gear 113 can be indirectly engaged with the first supporting plate 121. Optionally, the supporting plate assembly 120 can further include at least one second driving member, and the second driving member can be connected with the first supporting plate 121. The second driving member can include a rack 1212 or a worm, and the extension direction of the rack 1212 or the worm can be perpendicular to the bearing surface 1211. The gear 113 and the rack 1212 or the worm can be engaged.

[0065] Optionally, in the implementation where the second driving member comprises the rack 1212, the gear 113 can specifically be a cylindrical gear 113. Optionally, in the implementation where the second driving member comprises a worm, the gear 113 can specifically be a worm wheel. Optionally, the second driving member can be integrally arranged with the first supporting plate 121, so that the first supporting plate 121 and the second driving member do not need to be assembled, which simplifies the assembly structure of the hinge device 10, and the first supporting plate 121 and the second driving member are not prone to separation, so that the structure of the whole formed by the first supporting plate 121 and the second driving member is more stable.

[0066] Optionally, the first driving member can be arranged on each of the at least two rotating shafts 112, and the second driving member is arranged in one-to-one correspondence with the first driving member, so that the two rotating shafts 112 can drive the first supporting plate 121 to move, so that the first supporting plate 121 can be driven to move when only one rotating shaft 112 is rotated or when the two rotating shafts 112 are simultaneously rotated.

[0067] In some implementations, the side of the first supporting plate 121 away from the bearing surface 1211 can be provided with a lead screw, and the axis of the lead screw is perpendicular to the bearing surface 1211; the first driving member can comprise a first bevel gear 113 and a second bevel gear 113, the axis of the first bevel gear 113 can be collinear with the axis of the rotating shaft 112, and the rotating shaft 112 is arranged through the first bevel gear 113; the center of the second bevel gear 113 is provided with a threaded hole, the axis of the threaded hole is collinear with the axis of the lead screw, the lead screw is arranged through the threaded hole and is threadedly connected with the second bevel gear 113; the second bevel gear 113 is engaged with the first bevel gear 113.

[0068] Optionally, the rotating shaft 112 drives the first bevel gear 113 to rotate, the second bevel gear 113 is engaged with the first bevel gear 113, so that the second bevel gear 113 rotates with the first bevel gear 113, and the rotation axis of the second bevel gear 113 is perpendicular to the rotation axis of the first bevel gear 113; since the second bevel gear 113 is threadedly connected with the lead screw, when the second bevel gear 113 rotates, the lead screw is driven to move in a direction perpendicular to the bearing surface 1211.

[0069] In some embodiments, the hinge device can further comprise a stretching mechanism configured to apply a pulling force to the first supporting plate 121 when the rotating shafts 112 rotate towards each other, the direction of the pulling force being away from the bearing surface 1211, so that the rotating shafts 112 and the first supporting plate 121 are tightly fitted, and the first supporting plate 121 is not prone to shaking.

[0070] In some embodiments, the stretching mechanism can include an elastic stretching member arranged on at least one of the two rotating shafts 112, including that the elastic stretching member is arranged on one of the two rotating shafts 112, or arranged on both of the two rotating shafts 112. The elastic stretching member has an end connected to the first supporting plate 121, and when the two rotating shafts 112 rotate towards each other, the elastic stretching member is stretched to pull the first supporting plate 121 to move away from the bearing surface 1211. During the movement of the first supporting plate 121 away from the bearing surface 1211, the elastic stretching member is stretched and always pulls the first supporting plate 121 tightly, so that the rotating shaft 112 and the first supporting plate 121 are tightly fitted, and the first supporting plate 121 is not easy to shake.

[0071] Optionally, when the two rotating shafts 112 rotate away from each other, the elastic stretching member is pressed against the first supporting plate 121 under the action of its own elasticity, so that the rotating shaft 112 and the first supporting plate 121 can still be tightly fitted, and the first supporting plate 121 is not easy to shake. Optionally, when the two rotating shafts 112 rotate towards each other, the elastic stretching member is stretched to further pull the first supporting plate 121 to move away from the bearing surface 1211, so that the movement of the first supporting plate 121 is more smooth.

[0072] Optionally, referring to Figure 6 and Figure 7 , the elastic stretching member can include a torsion spring 130 arranged on at least one of the two rotating shafts 112, and the torsion spring 130 has a hook portion 131 connected to the first supporting plate 121, and the torsion spring 130 pulls the first supporting plate 121 through the hook portion 131.

[0073] Optionally, the side of the first supporting plate 121 away from the bearing surface 1211 can be provided with a limiting member 122, and a limiting passage 1221 is formed between the limiting member 122 and the first supporting plate 121. The extending direction of the limiting passage 1221 is parallel to the bearing surface 1211 and perpendicular to the axis of the rotating shaft 112, the hook portion 131 is arranged in the limiting passage 1221, and the end of the hook portion 131 abuts against the first supporting plate 121.

[0074] Referring to Figure 8 , in some implementations, the limiting member 122 can include a connecting column 1222 and a limiting column 1223. The axis of the connecting column 1222 is perpendicular to the bearing surface 1211, and the axis of the limiting column 1223 is parallel to the axis of the rotating shaft 112. One end of the connecting column 1222 is connected to the side of the first supporting plate 121 away from the bearing surface 1211, and the other end of the connecting column 1222 is connected to one end of the limiting column 1223. The connecting column 1222, the limiting column 1223 and the first supporting plate 121 surround to form the limiting passage 1221.

[0075] Optionally, the limiting member 122 can include a limiting block, a side of the limiting block facing the first supporting plate 121 is provided with a gap, an axis of the gap is parallel to the bearing surface 1211 and perpendicular to an axis of the rotating shaft 112, and the gap and the first supporting plate 121 form a limiting passage 1221.

[0076] In some embodiments, the elastic stretching member can include an elastic rope, one end of the elastic rope is fixed to the rotating shaft 112, the elastic rope is wound around the rotating shaft 112, and the other end of the elastic rope is connected to a side of the first supporting plate 121 away from the bearing surface 1211. When the two rotating shafts 112 rotate towards each other, the elastic rope is stretched to pull the first supporting plate 121 to move away from the bearing surface 1211.

[0077] Please refer to Figure 9 and Figure 10 In some embodiments, the stretching mechanism can include a first connecting member, an elastic member and a second connecting member. The first connecting member can include a connecting plate 141, the connecting plate 141 can be parallel to the first supporting plate 121, the connecting plate 141 is arranged on a side of the first supporting plate 121 away from the bearing surface 1211, the connecting plate 141 is movably connected to the main body 111, and the connecting plate 141 can move relative to the main body 111 in a direction perpendicular to the bearing surface 1211.

[0078] Optionally, the elastic member can include a spring 142, an extension direction of the spring 142 can be perpendicular to the bearing surface 1211, and the spring 142 is arranged between the main body 111 and the first connecting member.

[0079] Optionally, the second connecting member can be in a columnar shape. Optionally, the second connecting member can include a bolt 143, the bolt 143 is arranged in the connecting plate 141 in a direction from the connecting plate 141 to the first supporting plate 121, the connecting plate 141 abuts against a head of the bolt 143, and an end of the bolt 143 away from the head is connected to the first supporting plate 121. The first supporting plate 121 can be provided with a threaded connection hole, an axis of the threaded connection hole is perpendicular to the bearing surface 1211, optionally, the threaded connection hole can be a through hole or a blind hole, and the end of the bolt 143 away from the head is arranged in the threaded connection hole, so that the bolt 143 is threadedly connected to the first supporting plate 121.

[0080] Optionally, the second supporting plate 123 and the third supporting plate 124 can be movably connected to the rotating shaft 112 through a swing arm 150, and the swing arm 150 is arranged to rotate relative to the rotating shaft 112.

[0081] In the process of gradually folding the hinge device from the unfolded state, when the rotating shaft 112 rotates towards each other, the swing arm 150 abuts against the main body 111 in a direction away from the bearing surface 1211, so that the main body 111 moves in a direction away from the first supporting plate 121, the spring 142 is pressed, and abuts against the connecting plate 141 in a direction away from the first supporting plate 121, the connecting plate 141 pushes the bolt 143 and the first supporting plate 121 to move in a direction away from the bearing surface 1211 synchronously, so that the rotating shaft 112 and the first supporting plate 121 can be tightly fitted, and the first supporting plate 121 is not easy to shake.

[0082] When the hinge device is in the unfolded state, the abutting force of the swing arm 150 against the main body 111 is released, and under the action of the spring 142, the main body 111 moves towards the bearing surface 1211 to drive the connecting plate 141, the bolt 143 and the first supporting plate 121 to move upwards synchronously as a whole.

[0083] Alternatively, the intelligent terminal provided by the embodiments of the present application can be implemented in various forms. For example, the intelligent terminal described in the present application can include mobile terminals such as mobile phones, tablet computers, notebook computers, palmtop computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bands, pedometers, and fixed terminals such as digital TVs and desktop computers.

[0084] In the subsequent description, a mobile terminal will be taken as an example for illustration, and those skilled in the art will understand that, in addition to elements specially used for mobile purposes, the configuration according to the embodiments of the present application can also be applied to terminals of a fixed type.

[0085] Please refer to Figure 11 , which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 300 can include an RF (Radio Frequency, radio frequency) unit 301, a WiFi module 302, an audio output unit 303, an A / V (Audio / Video, audio / video) input unit 304, a sensor 305, a display unit 306, a user input unit 307, an interface unit 308, a memory 309, a processor 310, and a power supply 311, and the like. Those skilled in the art can understand that, Figure 11 The mobile terminal structure shown in the figure does not constitute a limitation on the mobile terminal, and the mobile terminal can include more or fewer components than those shown in the figure, or combine certain components, or different component arrangements.

[0086] The following will be described in combination with Figure 11 The various components of the mobile terminal 300 will be specifically introduced as follows:

[0087] The radio frequency unit 301 can be used for receiving and transmitting signals in the process of transmitting or receiving information or a call. Specifically, after receiving downlink information from a base station, the radio frequency unit 301 provides the processor 310 with the received information. In addition, the radio frequency unit 301 transmits uplink data to the base station. Generally, the radio frequency unit 301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 301 can communicate with a network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G, and the like.

[0088] The WiFi belongs to a short-range wireless transmission technology. The WiFi module 302 can help the user to send and receive e-mails, browse web pages, and access streaming media, and the like. The WiFi module 302 provides the user with wireless broadband Internet access. Although the WiFi module 302 is shown, it is understood that the WiFi module 302 does not belong to the essential components of the mobile terminal 300, and can be omitted without changing the essence of the application. Figure 11 The WiFi module 302 is shown, but it is understood that it does not belong to the essential components of the mobile terminal 300, and can be omitted without changing the essence of the application.

[0089] The audio output unit 303 can convert audio data, which is received by the radio frequency unit 301 or the WiFi module 302 or stored in the memory 309, into an audio signal and output the audio signal as sound when the mobile terminal 300 is in a call signal reception mode, a call mode, a record mode, a voice recognition mode, a broadcast reception mode, and the like. In addition, the audio output unit 303 can provide audio output related to a particular function performed by the mobile terminal 300 (e.g., a call signal reception sound, a message reception sound, and the like). The audio output unit 303 can include a speaker, a buzzer, and the like.

[0090] The A / V input unit 304 is configured to receive audio or video signals. The A / V input unit 304 can include a graphics processor (GPU) 3041 and a microphone 3042. The graphics processor 3041 processes image data of a still picture or a video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. Processed image frames can be displayed on the display unit 306. Processed image frames can be stored in the memory 309 (or other storage medium) or transmitted via the radio frequency unit 301 or the WiFi module 302. The microphone 3042 can receive sound (audio data) via the microphone 3042 in a telephone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. Processed audio (voice) data can be converted into a format transmittable to a mobile communication base station via the radio frequency unit 301 in the case of the telephone call mode. The microphone 3042 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.

[0091] The mobile terminal 300 also includes at least one sensor 305, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor to adjust the brightness of the display panel 3061 according to the brightness of ambient light, and a proximity sensor to turn off the display panel 3061 and / or the backlight when the mobile terminal 300 is moved to the ear. As one of the motion sensors, an accelerometer sensor can detect the magnitude and direction of acceleration in each direction (generally, three axes), and can detect the magnitude and direction of gravity when at rest, and can be used for applications that recognize the posture of the mobile terminal (e.g., switching between landscape and portrait modes, related games, magnetometer posture calibration), vibration recognition related functions (e.g., pedometer, tapping), and the like. As for other sensors that can be configured in the mobile terminal, a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like are not described herein.

[0092] The display unit 306 is configured to display information input by a user or information provided to the user. The display unit 306 can include a display panel 3061, which can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Optionally, the display unit 306 can be a flexible display screen.

[0093] The user input unit 307 can be used to receive input numerals or character information, and to generate key signal inputs related to user settings of the mobile terminal 300 and control of functions. Optionally, the user input unit 307 can include a touch panel 3071 and other input devices 3072. The touch panel 3071, also called a touch screen, can collect touch operations of a user on or proximity thereto (e.g., operations by the user using a finger, a touch pen, or any suitable object or accessory on or in proximity to the touch panel 3071), and can drive a corresponding connection device according to a pre-set program. The touch panel 3071 can include a touch detecting device and a touch controller. The touch detecting device can detect a user's touch position and detect a signal resulting from a touch operation, and can transmit the signal to the touch controller. The touch controller can receive touch information from the touch detecting device, convert it into touch coordinates, and transmit the touch coordinates to the processor 310, and can receive commands from the processor 310 and execute them. In addition, the touch panel 3071 can be implemented in various types such as a resistive type, a capacitive type, an infrared type, a surface acoustic wave type, and the like. In addition to the touch panel 3071, the user input unit 307 can include other input devices 3072. The other input devices 3072 can include, for example, one or more of a physical keyboard, a function key (e.g., a volume control key, a switch key, etc.), a track ball, a mouse, a joystick, and the like, without being limited thereto.

[0094] Optionally, the touch panel 3071 can cover the display panel 3061, and when the touch panel 3071 detects a touch operation on or in proximity thereto, can transmit the same to the processor 310 to determine a type of the touch event, and the processor 310 can then provide a corresponding visual output on the display panel 3061 according to the type of the touch event. Although in the above description, the touch panel 3071 and the display panel 3061 are implemented as two separate components to perform input and output functions of the mobile terminal 300, in some embodiments, the touch panel 3071 and the display panel 3061 can be integrated to perform input and output functions of the mobile terminal 300, without being limited thereto. Figure 11

[0095] The interface unit 308 serves as an interface through which at least one external device can be connected with the mobile terminal 300. For example, the external device can include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input / output (I / O) port, a video I / O port, an earphone port, or the like. The interface unit 308 can be used as a path through which input data can be input to the mobile terminal 300 or through which the mobile terminal 300 can output data to an external device.​

[0096] The memory 309 can be used to store software programs and various data. The memory 309 can mainly include a program storage area and a data storage area, and the program storage area can store an operating system, application programs required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), and the like. In addition, the memory 309 can include a high-speed random access memory, and can also include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device.

[0097] The processor 310 is the control center of the mobile terminal 300, connects all parts of the mobile terminal 300 through various interfaces and lines, executes various functions of the mobile terminal 300 and processes data by running or executing software programs and / or modules stored in the memory 309 and calling data stored in the memory 309, and thus monitors the mobile terminal 300 as a whole. The processor 310 can include one or more processing units; preferably, the processor 310 can integrate an application processor and a modem processor, and optionally, the application processor mainly processes an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 310.

[0098] The mobile terminal 300 can also include a power supply 311 (such as a battery) for supplying power to various components, and preferably, the power supply 311 can be logically connected to the processor 310 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system.

[0099] Although Figure 11 Figure 11 The mobile terminal 300 can also include a Bluetooth module and the like, which are not shown here.

[0100] The units / modules in the terminal of the embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0101] In the present application, for the same or similar term concept, technical solution and / or application scenario description, generally only the first occurrence is described in detail, and for the sake of brevity, the repeated description is generally not repeated, and for the understanding of the technical solutions of the present application, the same or similar term concept, technical solution and / or application scenario description which is not described in detail can refer to the related description of the previous.

[0102] In the present application, the description of each embodiment has its own emphasis, and the part not described or recorded in a certain embodiment can be referred to the related description of other embodiments.

[0103] Any combination of the technical features of the technical solutions of the present application can be combined. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist, they should be considered as the range disclosed in the present application.

[0104] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A hinge device, characterized by The hinge device comprises: a hinge assembly and a supporting plate assembly, the hinge assembly comprises a main body and at least two hinge shafts, the hinge shafts are rotationally arranged relative to the main body; the supporting plate assembly comprises a first supporting plate, the first supporting plate comprises a supporting surface for supporting a flexible display screen; at least one of the first supporting plate and the hinge shafts is connected and moves relative to the hinge shafts to a side facing the supporting surface or a side away from the supporting surface when the hinge shafts rotate, and the moving track of the first supporting plate is between the two hinge shafts; the hinge device further comprises a stretching mechanism, the stretching mechanism is configured to apply a pulling force to the first supporting plate when the hinge shafts rotate towards each other, and the pulling force is away from the supporting surface; the stretching mechanism comprises an elastic stretching member, the elastic stretching member comprises a torsion spring, the torsion spring is arranged in at least one of the hinge shafts, the torsion spring has a hook portion, and the hook portion is connected to the first supporting plate; a limiting member is arranged on the side of the first supporting plate away from the supporting surface, the limiting member comprises a connecting column and a limiting column, the axis of the connecting column is perpendicular to the supporting surface, the axis of the limiting column is parallel to the axis of the hinge shaft, one end of the connecting column is connected to the side of the first supporting plate away from the supporting surface, the other end of the connecting column is connected to one end of the limiting column, the connecting column, the limiting column and the first supporting plate form a limiting channel, the hook portion is arranged in the limiting channel, and the end of the hook portion abuts against the first supporting plate; or the stretching mechanism comprises a first connecting member, an elastic member and a second connecting member, the first connecting member is arranged on the side of the first supporting plate away from the supporting surface, the first connecting member is movably connected to the main body, and the first connecting member can move relative to the main body to a direction facing the first supporting plate or away from the first supporting plate; the elastic member is arranged between the main body and the first connecting member; one end of the second connecting member is connected to the first supporting plate, and the other end of the second connecting member is connected to the first connecting member. when the hinge shafts rotate towards each other, the hinge shafts drive the first supporting plate to move away from the supporting surface; and / or 2. The hinge device of claim 1, wherein when the hinge shafts rotate away from each other, the hinge shafts drive the first supporting plate to move towards the supporting surface. the hinge assembly further comprises a first driving member, the first driving member is arranged corresponding to at least one of the hinge shafts, and is used to drive the first supporting plate to move synchronously when the hinge shaft rotates.

3. The hinge device of claim 1, wherein the first driving member comprises at least one gear, the axis of the gear is parallel to the axis of the hinge shaft, and the gear is meshingly arranged with the first supporting plate; the supporting plate assembly further comprises at least one second driving member, the second driving member is meshingly arranged with the gear; 4. The hinge device of claim 3, wherein and / or the second driving member comprises at least one rack, the extending direction of the rack is perpendicular to the first supporting plate, and the rack is meshingly arranged with the gear; at least two of the hinge shafts are provided with the first driving member, and the second driving member is arranged corresponding to the first driving member. ​ 5. The hinge device according to any one of claims 1 to 4, characterized in that, The supporting plate assembly further comprises a second supporting plate and a third supporting plate, the second supporting plate and the third supporting plate are connected with one of the at least two rotating shafts respectively, the second supporting plate comprises a first adhering surface for adhering with the flexible display screen, and the third supporting plate comprises a second adhering surface for adhering with the flexible display screen. When the hinge device is in the unfolded state, the bearing surface, the first adhering surface and the second adhering surface are flush; and / or when the hinge device is in the folded state, the first adhering surface and the second adhering surface each have an included angle with the bearing surface.

6. A smart terminal, characterized by, The flexible display screen and the hinge device according to any one of claims 1 to 5. The flexible display screen and the hinge device according to any one of claims 1 to 5.

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