Hinge structure and electronic equipment

Abstract

The invention relates to the technical field of communication equipment, and discloses a hinge structure and electronic equipment, and the hinge structure comprises a pair of seat bodies, a pair of opening and closing pieces, at least two connecting arms and a matching piece. The pair of opening and closing pieces are hinged through the connecting shaft to form a scissor fork structure, the scissor fork structure and the hinge shaft are arranged, the pair of seat bodies are hinged and connected, the scissor fork structure is matched with the motion trail limiting structures on the seat bodies, the scissor fork structure can correspondingly expand and expand the motion radius between the seat bodies when the seat bodies rotate relatively, and the external structure of the connecting seat bodies is effectively reduced. The collision risk of a screen and the like is avoided. Meanwhile, as the connecting part on the seat body and the matching piece on the hinge shaft rotate relatively, and when the first contact part and the third contact part arranged on the opposite end surfaces of the connecting part and the matching piece are in contact, the rotating resistance between the seat bodies is increased, so that the collision risk of the electronic equipment is reduced by adjusting the contact position of the seat bodies; the accuracy of manual angle adjustment of the user is improved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, and in particular to a hinge structure and electronic equipment. Background Art

[0002] In the field of communication equipment, screens are widely used in electronic devices, and foldable and unfoldable display screens or touch screens are a current development direction of electronic devices.

[0003] Nowadays, foldable electronic devices are usually connected by hinge structures. However, in actual use, on the one hand, the rotation resistance of the hinge parts is relatively uniform during the rotation process, and the rotation angle needs to be adjusted by the user's hand. The user needs to manually adjust repeatedly to turn to the commonly used target angle, which has a poor user experience. On the other hand, at the end of the movement when the two screens of the foldable electronic device are closed, the merging speed is easily increased due to inertia, which increases the risk of the two screens bumping into each other. Summary of the invention

[0004] In view of this, the present invention provides a hinge structure and an electronic device to solve the problems of poor user experience and high risk of screen bumps in the prior art folding screen.

[0005] In the first aspect, the present invention provides a hinge structure, comprising: a pair of seat bodies, one end of the pair of seat bodies close to each other is respectively hinged with a hinge shaft, and a connected accommodating cavity is formed between the pair of seat bodies, and at least one side wall of the pair of seat bodies located in the accommodating cavity is respectively provided with a motion trajectory limiting structure; a pair of opening and closing members, which are cross-arranged and hinged through a connecting shaft, and the pair of opening and closing members both extend into the accommodating cavity, the first ends of the pair of opening and closing members are respectively circumferentially limited and sleeved with the pair of hinge shafts, and the second ends of the pair of opening and closing members are respectively fixed with movable members, and at least one end of the movable member is movably arranged on the corresponding In the motion trajectory limiting structure; there are at least two connecting arms, each of which has a connecting portion at one end and a through hole at the other end, and a first contact portion and a second contact portion arranged around the through hole on one end face, the connecting portion is limitedly arranged on the seat body, and the through hole is rotatably sleeved on the hinge shaft; a matching piece is circumferentially limitedly sleeved on the hinge shaft and is arranged one-to-one with the connecting arms, and a third contact portion and a fourth contact portion are provided on a side of the matching piece facing the connecting arm, and when the first contact portion contacts the third contact portion, the rotational resistance between a pair of the seat bodies increases.

[0006] Beneficial effects:

[0007] A pair of opening and closing parts are hinged through a connecting shaft to form a scissors-type structure. The scissors-type structure and the hinge shaft are provided to hinge-connect a pair of seat bodies. In conjunction with the motion trajectory limiting structure on the seat bodies, the scissors-type structure can be unfolded accordingly when relative rotation occurs between the seat bodies, thereby expanding the motion radius between the seat bodies and effectively reducing the risk of collision with external structures connected to the seat bodies, such as screens.

[0008] At the same time, due to the connecting part on the seat body and the matching part on the hinge shaft, the two are driven to rotate relative to each other synchronously during the relative rotation between the seat bodies. The first contact part and the second contact part, the third contact part and the fourth contact part are respectively arranged on their opposite end faces, and when the first contact part contacts the third contact part, the rotation resistance between a pair of seat bodies is increased.

[0009] In this way, the contact range of the first contact portion and the third contact portion can be set as needed, and the movement resistance of the connecting arm and the matching piece can be selectively adjusted in different rotation angle ranges, so that the corresponding rotation resistance at different relative angles between the seat bodies can be changed as needed. When the first contact portion and the third contact portion are set to contact when the seat body is rotated to a position close to the merged position, the movement speed of the external structure of the connecting seat body, such as the screen, at the end of the movement can be reduced accordingly, thereby reducing the risk of collision. When the first contact portion and the third contact portion are set to contact when the seat body is rotated to other target angles, it is convenient for users to manually and accurately adjust the angle, thereby improving user experience.

[0010] In an optional embodiment, the pair of seat bodies have a fully closed state in which they fit together, and a fully expanded state in which the angle between them is a right angle, and the pair of seat bodies are suitable for relative rotation under the action of external force, and for switching between the fully closed state and the fully expanded state; before the pair of seat bodies rotate relative to each other to enter the fully closed state and the fully expanded state, the first contact portion and the third contact portion contact each other.

[0011] In an optional embodiment, two first contact portions and two second contact portions are arranged on the connecting arm around the through hole, the first contact portions and the second contact portions are alternately arranged in the circumferential direction of the through hole, and the two first contact portions are centrally symmetrical; and / or, two third contact portions and two fourth contact portions are correspondingly arranged on a side of the mating piece facing the connecting arm, the third contact portions and the fourth contact portions are correspondingly alternately arranged along the circumferential direction of the hinge axis, and the two third contact portions are centrally symmetrical.

[0012] In an optional embodiment, on the end surface of the connecting arm opposite to the matching piece, the first contact portion and the third contact portion protrude from the end surface.

[0013] In an optional embodiment, a transition connection surface is provided at a connection point between the first contact portion and the second contact portion, and at a connection point between the third contact portion and the fourth contact portion.

[0014] In an optional embodiment, the outer side wall of the hinge shaft includes an arc surface and a non-circular surface, the non-circular surface is connected to the arc surface and extends along the axial direction of the hinge shaft, and the non-circular surface is arranged inside the space enclosed by the circumscribed circular surface corresponding to the arc surface.

[0015] In an optional embodiment, the mating piece includes an annular body and an axial hole provided in the annular body, the axial hole matches the shape of the hinge shaft, and the mating piece is circumferentially limitedly sleeved with the hinge shaft through the axial hole.

[0016] In an optional embodiment, the hinge structure also includes: an auxiliary adjustment unit, which is arranged on a pair of the hinge shafts, including an auxiliary adjustment part and an elastic part, the elastic part is arranged between the combination of the connecting arm and the mating part and the auxiliary adjustment part, and the auxiliary adjustment part is movably limited to the hinge shaft and is suitable for axial movement under external force.

[0017] In an optional embodiment, a plurality of the elastic members are respectively disposed on a pair of the hinge shafts, and adjacent elastic members are interlocked with each other to form an elastic cavity together.

[0018] In an optional embodiment, each of the opening and closing parts includes an opening and closing body and the first end and the second end arranged at both ends of the opening and closing body, the first end is axially provided with a sleeve hole matching the shape of the hinge shaft, the first end is circumferentially limitedly sleeved on the hinge shaft through the sleeve hole, the second end is provided with a movable part, and at least one end of the movable part extends into the motion trajectory limiting structure.

[0019] In an optional embodiment, the motion trajectory limiting structure is bent and includes a first hole segment and a second hole segment that is arranged at an angle to and connected to the first hole segment.

[0020] In an optional embodiment, each of the seat bodies includes a first split body and a second split body, the first split body and the second split body are arranged opposite to each other and fixedly connected by seat body fasteners, the accommodating cavity is formed between the first split body and the second split body, and the motion trajectory limiting structure is respectively arranged on the opposite side walls of the first split body and the second split body.

[0021] In an optional embodiment, the first split body is provided with a locking portion, and the second split body is provided with a locking matching portion, and the locking matching portion and the locking portion are detachably locked and limited.

[0022] In an optional embodiment, a limiting hole is further provided on the seat body, and the connecting portion of the connecting arm is fixedly connected to the limiting hole from the outside of the seat body.

[0023] In an optional embodiment, each of the seat bodies further includes at least one extension portion, which is arranged on the outer wall and / or edge of the seat body and extends toward the circumference of the seat body, and has a fixing hole arranged thereon, which is suitable for connecting to an external structure.

[0024] In an optional implementation, a positioning hole is further provided on the extension portion.

[0025] In a second aspect, the present invention provides an electronic device, comprising: a first body; a second body; and the above-mentioned hinge structure, wherein a pair of bases of the hinge structure are respectively connected to the first body and the second body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of a three-dimensional structure of a hinge structure according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the hinge structure shown in another angle;

[0029] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the hinge structure shown in FIG. 1 when the base bodies are rotated to another angle;

[0030] Figure 4 for Figure 1 An exploded view of the hinge structure shown;

[0031] Figure 5 is a schematic diagram of the three-dimensional structure of an electronic device according to an embodiment of the present invention;

[0032] Figure 6 for Figure 5 A schematic diagram of a partial structure of the electronic device shown when the first body and the second body are rotated to close;

[0033] Figure 7 for Figure 5A partial enlarged schematic diagram of the hinge structure in the electronic device shown

[0034] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure of the connecting arm in the hinge structure shown;

[0035] Fig. 9 for Figure 1 A schematic diagram of the three-dimensional structure of the matching parts in the hinge structure shown;

[0036] Fig.10 for Figure 1 A schematic diagram of the three-dimensional structure of the first split body in the hinge structure shown;

[0037] Fig.11 for Figure 1 A schematic diagram of the three-dimensional structure of the opening and closing parts and the connecting shaft in the hinge structure shown;

[0038] Fig.12 for Figure 1 A schematic diagram of the three-dimensional structure of the hinge axis in the hinge structure shown;

[0039] Description of reference numerals:

[0040] 1. seat body; 101. accommodating cavity; 102. motion trajectory limiting structure; 103. first sub-body; 104. engaging portion; 105. second sub-body; 106. engaging portion; 107. seat body fastener; 108. limiting hole; 109. extension portion; 110. fixing hole; 111. positioning hole; 112. support ear; 2. hinge axis; 201. arc surface; 202. non-circular surface; 3. connecting axis; 4. opening and closing member; 401. first end; 402, second end; 403, movable part; 404, opening and closing body; 405, sleeve hole; 5, connecting arm; 501, connecting part; 502, first contact part; 503, second contact part; 6, matching part; 601, third contact part; 602, fourth contact part; 603, annular body; 604, axial hole; 7, auxiliary adjustment part; 8, elastic part; 9, gasket; 10, transition connection surface; 11, first body; 12, second body. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0042] In the field of communication equipment, screens are widely used in electronic devices, and foldable and unfoldable display screens or touch screens are a current development direction of electronic devices.

[0043] Nowadays, foldable electronic devices are usually connected by hinge structures. However, in actual use, on the one hand, the rotation resistance of the hinge parts is relatively uniform during the rotation process, and the rotation angle needs to be adjusted by the user's hand. The user needs to manually adjust repeatedly to turn to the commonly used target angle, which has a poor user experience. On the other hand, at the end of the movement when the two screens of the foldable electronic device are closed, the merging speed is easily increased due to inertia, which increases the risk of the two screens bumping into each other.

[0044] In view of this, the present invention provides a hinge structure and an electronic device. By setting multiple contact parts with different friction forces in the hinge structure, when the internal structure of the hinge structure rotates relatively, the friction forces at different angle positions are different, so that the user can set the contact parts with larger friction forces at the commonly used target angles and the end angles of the closing movement of two screens with the hinge structure, so that the user can accurately rotate to the required angle, and cooperate with the hinge structure whose main body is a scissors-shaped structure to further reduce the risk of screen collision, so as to solve the problem of poor user experience and high risk of screen collision of folding screens in the prior art.

[0045] The present application scheme is described in detail below with reference to the accompanying drawings. Figure 1-Figure 12 In a first aspect, the present invention provides a hinge structure, comprising: a pair of base bodies 1, a pair of opening and closing members 4, at least two connecting arms 5 and correspondingly arranged matching members 6.

[0046] A pair of seat bodies 1 are respectively configured as a first seat unit and a second seat unit. Preferably, the two seat bodies 1 are configured in the same shape and size to facilitate manufacturing and reduce costs. It is understandable that the two seat bodies 1 may also have different shapes and sizes. In this embodiment, the two seat bodies 1 are respectively hinged with hinge shafts 2 at one end close to each other, and a connected accommodating cavity 101 is formed between the two seat bodies 1. At least one side wall of the pair of seat bodies 1 located in the accommodating cavity 101 is respectively provided with a motion track limiting structure 102. Preferably, the motion track limiting structures 102 on the two seat bodies 1 are symmetrically arranged.

[0047] Preferably, the articulated shaft 2 is arranged as a straight shaft, and the part thereof which penetrates into the accommodating cavity 101 is provided with an annular protrusion to limit the seat body 1 and prevent the articulated shaft 2 from escaping from the seat body 1. The motion trajectory limiting structure 102 only needs to satisfy the guiding effect, and specifically can be in the form of a groove, a hole or a guide rail.

[0048] A pair of opening and closing members 4 are arranged crosswise and hinged by the connecting shaft 3. Preferably, the two opening and closing members 4 are arranged in the same shape and size. More preferably, the hinged position of the connecting shaft 3 corresponds to the same on the two opening and closing members 4. Such an arrangement is convenient for manufacturing and reduces costs. At the same time, it is convenient for the seat body 1 arranged in the same shape to achieve the same stroke movement relative to the connecting shaft 3, avoiding the occurrence of problems such as limit jamming due to stroke difference or misalignment when the seat is combined.

[0049] In addition, both opening and closing members 4 extend into the accommodating cavity 101, and the first ends 401 of the two opening and closing members 4 are respectively corresponding to the pair of hinge shafts 2 in a circumferential limited sleeve, and the second ends 402 of the pair of opening and closing members 4 are respectively fixed with movable members 403, and at least one end of the movable member 403 is movably arranged in the corresponding motion track limiting structure 102; specifically, the first end 401 is sleeved on the hinge shaft 2 and can move along the axial direction of the hinge shaft 2, and the second end 402 is fixedly connected or integrally formed with the movable member 403. As a convertible embodiment, the first end 401 and the hinge shaft 2 can be fixedly connected or integrally formed.

[0050] At least one pair of connecting arms 5, each connecting arm 5 is provided with a connecting portion 501 at one end, a through hole at the other end, and a first contact portion 502 and a second contact portion 503 arranged around the through hole on one end surface of the end, the connecting portion 501 is limitedly arranged on the seat body 1, and the through hole is rotatably sleeved on the hinge shaft 2. In this embodiment, the connecting portion 501 is detachably limitedly connected to the seat body 1. As a convertible embodiment, the connecting portion 501 is fixedly connected to the seat body 1, or it can be integrally formed. In addition, a single, two or more connecting arms 5 can be arranged on a single seat body 1, and two are arranged in this embodiment.

[0051] The fitting 6 is circumferentially limited on the hinge shaft 2 and is arranged one-to-one with the connecting arm 5. A third contact portion 601 and a fourth contact portion 602 are provided on one side of the fitting 6 facing the connecting arm 5. When the first contact portion 502 contacts the third contact portion 601, the rotational resistance between a pair of seat bodies 1 increases.

[0052] Preferably, along the end of the trajectory of the two seats 1 moving toward each other, the first contact portion 502 comes into contact with the third contact portion 601 .

[0053] A pair of opening and closing parts 4 are hinged through a connecting shaft 3 to form a scissors-type structure. A scissors-type structure and a hinge shaft 2 are provided to hingely connect a pair of seat bodies 1. In conjunction with a motion trajectory limiting structure 102 on the seat bodies 1, the scissors-type structure can be unfolded accordingly when relative rotation occurs between the seat bodies 1, thereby expanding the motion radius between the seat bodies 1 and effectively reducing the risk of collision with external structures connected to the seat bodies 1, such as a screen.

[0054] At the same time, due to the connecting part 501 on the seat body 1 and the matching part 6 on the hinge shaft 2, the two are driven to rotate relative to each other synchronously during the relative rotation between the seat bodies 1. The first contact part 502 and the second contact part 503, the third contact part 601 and the fourth contact part 602 are respectively arranged on their opposite end faces, and when the first contact part 502 contacts the third contact part 601, the rotation resistance between a pair of seat bodies 1 is increased.

[0055] In this way, the contact range of the first contact portion 502 and the third contact portion 601 can be set as needed, and the movement resistance of the connecting arm 5 and the matching member 6 can be selectively adjusted in different rotation angle ranges, so that the corresponding rotation resistance at different relative angles between the base body 1 can be changed as needed. When the first contact portion 502 and the third contact portion 601 are set to contact when the base body 1 is rotated to a position close to the merged position, the movement speed of the external structure of the connecting base body 1, such as the screen, at the end of the movement can be reduced accordingly, thereby reducing the risk of collision. When the first contact portion 502 and the third contact portion 601 are set to contact when the base body 1 is rotated to other target angles, the resistance can be increased at the target angle, thereby facilitating the user to manually and accurately adjust the angle, thereby improving the user experience.

[0056] In this embodiment, a pair of seat bodies 1 has a fully closed state and a fully opened state.

[0057] In the fully closed state, the two seats 1 rotate relative to each other until they fit together, i.e., they are in the merged position. In the fully expanded state, the angle between the two seats 1 is a flat angle. When subjected to external force, the pair of seats 1 can rotate relative to each other and switch between the fully closed state and the fully expanded state.

[0058] Before the pair of seat bodies 1 rotate relative to each other to enter the fully closed state and the fully extended state, the first contact portion 502 contacts the third contact portion 601. Further, when the pair of seat bodies rotate relative to each other to approach the fully closed state and the fully extended state, the first contact portion 502 contacts the third contact portion 601. As a convertible embodiment, in the fully extended state, the angle between the two seat bodies 1 can be set to be greater than or less than 180 degrees.

[0059] This arrangement is simple to assemble, and during a relative rotation of 180 degrees, there are at least two damping positions, corresponding to a fully closed state and a fully extended state, respectively, so that the two base bodies 1 have strong damping when they are close to a fully closed state and a fully extended state, thereby preventing collision between the two screens on which the base bodies 1 are respectively installed.

[0060] In this embodiment, two first contact portions 502 and two second contact portions 503 are arranged around the through hole on the connecting arm 5, the first contact portions 502 and the second contact portions 503 are alternately arranged along the circumferential direction of the through hole, and the two first contact portions 502 are centrally symmetrical; two third contact portions 601 and two fourth contact portions 602 are correspondingly arranged on the side of the mating piece 6 facing the connecting arm 5, the third contact portions 601 and the fourth contact portions 602 are correspondingly alternately arranged along the circumferential direction of the hinge shaft 2, and the two third contact portions 601 are centrally symmetrical.

[0061] In this way, the two first contact portions 502 are arranged to be centrally symmetrical, and the two third contact portions 601 are arranged to be centrally symmetrical, so that the first contact portion 502 and the third contact portion 601 begin to contact when they rotate coaxially relative to each other by nearly 180 degrees, and are in full contact when they reach 180 degrees, thereby meeting the need for enhanced damping when the seat body 1 is close to a fully closed state and a fully expanded state.

[0062] It can be understood that the number of the first contact portion 502 and the second contact portion 503 on the connecting arm 5 and the relative angle between them around the through hole can also be set accordingly as needed. The number of the first contact portion 502 and the second contact portion 503 on the connecting arm 5, and the number of the third contact portion 601 and the fourth contact portion 602 on the matching member 6 can be greater than two, and the circumferential relative angle between the same contact portions can be greater than or less than 180 degrees.

[0063] On the end surface of the connecting arm 5 opposite to the matching piece 6, the first contact portion 502 and the third contact portion 601 protrude from the end surface. In this way, when the first contact portion 502 and the third contact portion 601 come into contact, the contact stress between the two increases, and the corresponding friction resistance increases, which correspondingly increases the rotation resistance between the two base bodies 1 along the hinge axis 2. The user can set the rotation resistance of the two base bodies 1 at different angles according to the relative positions of the first contact portion 502 and the third contact portion 601.

[0064] As a convertible embodiment, the first contact portion 502 and the third contact portion 601 may not be provided in a convex shape, but may be provided with a friction coefficient greater than that of the adjacent circumferential end faces thereof, which may be achieved by replacing them with a high friction coefficient material or changing the surface to a rougher shape.

[0065] In addition, a transition connection surface 10 is provided at the connection between the first contact portion 502 and the second contact portion 503, and at the connection between the third contact portion 601 and the fourth contact portion 602. Specifically, the transition connection surface 10 is an inclined plane or an inclined transition arc surface, which facilitates the effective transition when the connecting arm 5 and the mating piece 6 rotate relative to the end surface, and avoids a sudden change in the end surface height, which affects the smoothness of the rotation.

[0066] It can be understood that when the first contact portion 502 and the third contact portion 601 adjust the rotation resistance by changing their own friction coefficients, the transition connection surface 10 may not be provided, or may be provided as a region where the friction coefficient changes gradually.

[0067] The outer side wall of the hinge shaft 2 includes an arc surface 201 and a non-circular surface 202, the non-circular surface 202 is connected to the arc surface 201 and extends along the axial direction of the hinge shaft 2, and the non-circular surface 202 is arranged inside the space enclosed by the circumscribed circumferential surface corresponding to the arc surface 201. The circumscribed circumferential surface is specifically arranged in a cylindrical shape, and each arc surface 201 is arranged on the same circumscribed circumferential surface. Specifically, in this embodiment, the outer edge of the cross section of the hinge shaft 2 is arranged in a runway shape, including two arc edges corresponding to the arc surfaces 201 and two straight edges corresponding to the non-circular surfaces 202, the two arc edges are arranged on the same circumference, the two straight edges are parallel to each other, and are staggered with the two arc edges. In addition, the number of the arc surfaces 201 and the non-circular surfaces 202 arranged along the circumferential direction can be adjusted as needed. Preferably, the arc surfaces 201 and the non-circular surfaces 202 are staggered to ensure the connection stability of the connecting part 501 installed thereon. The non-circular surface 202 may be a flat surface, a curved surface, a bent surface, etc.

[0068] As a convertible implementation, the hinge shaft 2 may also be provided in a cylindrical shape, and the connection portion 501 that needs to be limited along the circumferential direction is provided on the hinge shaft 2 by welding or integral molding.

[0069] The fitting 6 includes an annular body 603 and an axial hole 604 arranged in the annular body 603. The axial hole 604 matches the shape of the hinge shaft 2. Specifically, in this embodiment, it is arranged in a waist-shaped hole shape. The fitting 6 is circumferentially limitedly sleeved with the hinge shaft 2 through the axial hole 604.

[0070] By setting the hinge shaft 2 to be non-cylindrical, the arc surface 201 thereon can meet the required rotatable effect when the connecting arm 5 and other structures with circular holes are sleeved on the hinge shaft 2. At the same time, the non-circular surface 202 and the matching part 6 and other structures with non-circular holes can achieve the required circumferential limiting effect when they are sleeved on the hinge shaft 2.

[0071] Since the connecting arm 5 and the matching piece 6 have different limiting relationships with the hinge shaft 2, when the hinge shaft 2 rotates, the connecting arm 5 and the matching piece 6 move relative to each other, so that a larger friction resistance is generated when the first contact portion 502 contacts the third contact portion 601, and the rotation resistance between the seat body 1 is correspondingly increased.

[0072] The hinge structure also includes an auxiliary adjustment unit, which is arranged on a pair of hinge shafts 2, including an auxiliary adjustment part 7 and an elastic part 8. The elastic part 8 is arranged between the combination of the connecting arm 5 and the matching part 6 and the auxiliary adjustment part 7. The auxiliary adjustment part 7 is adjacent to the end of the hinge shaft 2. In this embodiment, two auxiliary adjustment units are arranged on a single hinge shaft 2.

[0073] The auxiliary adjustment member 7 is movable and limited with the hinge shaft 2, and is suitable for axial movement under external force. In this embodiment, the auxiliary adjustment member 7 is threadedly matched with the hinge shaft 2, and a circular threaded hole is provided inside the auxiliary adjustment member 7. The user can adjust the position of the auxiliary adjustment member 7 on the hinge shaft 2 by screwing, and further adjust the preload force between the connecting arm 5 and the matching member 6, so as to achieve damping adjustment of the two seat bodies 1 throughout the movement.

[0074] In this embodiment, a plurality of elastic members 8 are respectively arranged on a pair of hinge shafts 2, and the elastic members 8 are arranged in a bowl-shaped elastic material, such as silicone or rubber, and adjacent elastic members 8 are mutually buckled along the mouth of the bowl, and together form a closed elastic cavity, and the elastic force is increased by air pressure. At the same time, the elastic members arranged in this way are light in weight, and the number of elastic members 8 can be adjusted accordingly according to the need of elastic force, reducing the difficulty of adjustment. As a convertible embodiment, the elastic member 8 can also be a spring or other structure.

[0075] In addition, each opening and closing member 4 includes an opening and closing body 404 and a first end 401 and a second end 402 provided at both ends of the opening and closing body 404. The first end 401 is provided with a sleeve hole 405 matching the shape of the hinge shaft 2 in the axial direction. In this embodiment, the sleeve hole 405 is a waist-shaped hole. The first end 401 is sleeved on the hinge shaft 2 through the sleeve hole 405 in a circumferentially limited sleeve. The second end 402 is provided with a movable member 403. In this embodiment, the movable member 403 is provided in the form of a shaft member and fixedly connected to the second end 402. It can also be integrally formed. Both ends of the movable member 403 extend into the motion trajectory limiting structure 102. It can be understood that when only a single motion trajectory limiting structure 102 is provided on the seat body 1, only one end of the movable member 403 extends into the motion trajectory limiting structure 102.

[0076] Preferably, the through hole of the motion trajectory limiting structure 102 is bent and includes a first hole segment and a second hole segment that is arranged at an angle and connected to the first hole segment. The angle between the two can be adjusted according to the specific size of the opening and closing member 4 and other structures.

[0077] By setting up the motion trajectory limiting structure 102, when the two base bodies 1 are driven by external force to rotate relative to each other, the relative positions of a pair of hinge shafts 2 connected to the base bodies 1 change, and the first end 401 of the opening and closing member 4 is circumferentially limited to the hinge shaft 2 and then moves accordingly. The second end 402 of the opening and closing member 4 provided with the movable part 403 is also driven by the opening and closing body 404 and the motion trajectory limiting structure 102 to move in a directional manner along the motion trajectory limiting structure 102.

[0078] During such movement, the connection shaft 3 and the base body 1 gradually increase or decrease, and the relative movement radius between the pair of base bodies 1 gradually increases when the base bodies 1 are relatively unfolded to the extreme position or relatively merged to the extreme position, which not only avoids the base bodies 1 from colliding during rotation, but also reduces the distance between the two screens installed with the base bodies 1 when unfolded.

[0079] Further explanation with diagrams: Fig.10 In the embodiment, the base body 1 may be provided with an external structure, such as an external screen connected to the plane where the extension 109 of the base body 1 is located. Fig.11 The angle between the two opening and closing parts 4 is set as the hinge opening and closing angle. Since the motion trajectory limiting structure 102 is bent, when the two opening and closing parts 4 rotate relative to each other and the hinge opening and closing angle changes, the external structure will independently rotate itself during the change of the hinge opening and closing angle, so that the angle between the two opening and closing parts 4 does not need to be opened to 180 degrees to achieve a 180-degree rotation between the two bases 1 and the screens thereon.

[0080] Furthermore, when a pair of seat bodies 1 change from a fully extended state to a fully closed state, the movable part 403 is arranged in the first hole segment, and the seat body 1 and the external structure arranged thereon, such as the external screen, rotate relatively slowly, and the main rotation is concentrated on the change of the opening and closing angle of the hinge. When the seat body 1 is close to the fully closed state, the movable part 403 moves to the second hole segment, and the seat body 1 and the external structure arranged thereon rotate independently and faster to achieve closure.

[0081] This arrangement allows the base 1 and the external structure thereon to rotate independently during the rotation process, concentrating on a nearly fully closed state, further preventing the external structure on the base 1, such as the screen, from being bumped and damaged during the rotation process.

[0082] In this embodiment, each seat body 1 includes a first sub-body 103 and a second sub-body 105, which are arranged opposite to each other and fixedly connected by a seat body fastener 107. The seat body fastener 107 can be a screw or a pin. The first sub-body 103 and the second sub-body 105 are provided with corresponding mounting holes. A receiving cavity 101 is formed between the first sub-body 103 and the second sub-body 105, and the motion trajectory limiting structure 102 is respectively provided on the opposite side walls of the first sub-body 103 and the second sub-body 105. By providing the seat body 1 with two sub-body structures connected by fasteners, on the one hand, each sub-body structure is simple and uses less materials, which can reduce the manufacturing difficulty of the seat body 1 itself, and on the other hand, it is convenient to process the mounting matching holes on each sub-body and the internal structure on one side of the receiving cavity 101.

[0083] As an alternative implementation, the motion trajectory limiting structure 102 may be disposed on only one side of the side wall.

[0084] In addition, the first body 103 is provided with a snap-fitting portion 104, which is provided in a groove shape, and the second body 105 is provided with a snap-fitting portion 106, which is provided in a block shape, and the snap-fitting portion 106 is detachably snap-fitted with the snap-fitting portion 104 to limit the position. This arrangement realizes the pre-positioning of the first body 103 and the second body 105, which is convenient for the alignment and installation of the seat fastener 107. As a convertible embodiment, the first body 103 can also be provided with the snap-fitting portion 106, and the second body 105 can also be provided with the snap-fitting portion 104. As another convertible embodiment, the snap-fitting portion 104 and the snap-fitting portion 106 can also be provided in other matching forms such as a shaft and a hole.

[0085] In addition, the hinge structure also includes a plurality of gaskets 9, which are arranged on the hinge shaft 2 and are suitable for separating adjacent structures on the hinge shaft 2, such as between the auxiliary adjustment part 7 and the elastic part 8, between the elastic part 8 and the matching part 6, and between the connecting arm 5 and the first end 401 of the opening and closing part 4.

[0086] In this embodiment, the seat body 1 is further provided with a limiting hole 108, which is arranged on both the first sub-body 103 and the second sub-body 105. The limiting hole 108 is arranged to avoid the structures such as the motion trajectory limiting structure 102 and the seat body fastener 107. The limiting hole 108 is arranged in a non-circular hole, specifically in the form of a square hole, etc. The connecting portion 501 of the connecting arm 5 matches the shape of the limiting hole 108 and is suitable for being detachably limited and connected in the limiting hole 108 from the outside of the seat body 1. The setting of the limiting hole 108 can accommodate the connecting portion 501 of the limiting connecting arm 5, so that the seat body 1 and the connecting arm 5 are connected as one body. When the two seat bodies 1 rotate relative to each other, the connecting arm 5 rotates relative to the hinge shaft 2 between the seat bodies, and then the corresponding contact portions on the two structures can have contact friction. Furthermore, the separate setting of the seat body 1 and the connecting arm 5 facilitates the separate processing and manufacturing of the connecting arm 5, reducing the processing difficulty.

[0087] As a convertible implementation, the limiting hole 108 may not be provided, and the seat body 1 and the connecting arm 5 are integrally formed.

[0088] Each seat body 1 further includes at least one extension portion 109, and the specific number can be set accordingly as needed, and can be one, two or more. In the present embodiment, each seat body 1 is provided with three extension portions 109 with different extension directions. The extension portion 109 is preferably in a sheet shape, and is arranged at the edge of the seat body 1, or can be directly arranged on the outer wall of the seat body 1. The extension portion 109 extends toward the peripheral side of the seat body 1, and a fixing hole 110 is arranged on it. The seat body 1 can be connected to the external structure through the fixing hole 110 on the extension portion 109 in conjunction with an external fastener, such as a screw.

[0089] Preferably, a positioning hole 111 is further provided on the extension portion 109 , and the positioning hole 111 is adjacent to the fixing hole 110 , so as to facilitate pre-positioning of the fixing hole 110 in coordination with the external structure.

[0090] In a second aspect, this embodiment further provides an electronic device, which may be a mobile phone, a tablet or a laptop computer, etc., comprising: a first body 11 and a second body 12, and the above-mentioned hinge structure. The first body 11 and the second body 12 are specifically screens or other components. Preferably, the rotation range of the first body 11 and the second body 12 is within the range of 0 to 180 degrees, and may also be less than or greater than the range.

[0091] The pair of seats 1 of the hinge structure are respectively connected with the first body 11 and the second body 12. In this embodiment, the specific form of the connection is screw connection, which is convenient for installation, positioning and disassembly, and can also be other forms such as clamping, bonding or welding.

[0092] In this embodiment, a lug 112 is formed on the seat body 1 at a location for mounting the hinge shaft 2, the hinge shaft 2 of the hinge structure is hinged in a mounting hole on the lug 112, the opening and closing body 404 is hinged by a connecting shaft 3, and the connecting shaft 3 is located on a side of the seat body 1 away from the lug 112. Preferably, the lug 112 is arranged adjacent to the extension 109 and the first body 11 and the second body 12, so as to reduce the risk of interference between the first body 11 and the second body 12 and different components in the hinge structure during rotation.

[0093] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A hinge structure, characterized in that: include: A pair of seat bodies (1), wherein one end of the pair of seat bodies (1) close to each other is respectively hinged with a hinge shaft (2), and a communicating accommodation cavity (101) is formed between the pair of seat bodies (1), and at least one side wall of the pair of seat bodies (1) located in the accommodation cavity (101) is respectively provided with a motion track limiting structure (102); A pair of opening and closing members (4) are cross-arranged and hinged via a connecting shaft (3), the pair of opening and closing members (4) both extend into the accommodating cavity (101), the first ends (401) of the pair of opening and closing members (4) are respectively sleeved with the pair of hinge shafts (2) in a circumferential limiting manner, the second ends (402) of the pair of opening and closing members (4) are respectively fixedly provided with movable members (403), and at least one end of the movable member (403) is movably arranged in the corresponding motion trajectory limiting structure (102); at least two connecting arms (5), each of the connecting arms (5) having a connecting portion (501) at one end and a through hole at the other end and a first contact portion (502) and a second contact portion (503) arranged around the through hole on one end surface of the end, the connecting portion (501) being limitedly arranged on the seat body (1), and the through hole being rotatably sleeved on the hinge shaft (2); The matching piece (6) is arranged on the hinge shaft (2) along a circumferential limiting sleeve and is arranged one-to-one with the connecting arm (5). The matching piece (6) is provided with a third contact portion (601) and a fourth contact portion (602) on a side facing the connecting arm (5). When the first contact portion (502) contacts the third contact portion (601), the rotational resistance between the pair of seat bodies (1) increases.

2. The hinge structure according to claim 1, characterized in that: The pair of seat bodies (1) have a fully closed state in which they fit each other, and a fully expanded state in which the angle between them is a flat angle, and the pair of seat bodies (1) are suitable for relatively rotating under the action of an external force and switching between the fully closed state and the fully expanded state; Before the pair of seat bodies (1) rotate relative to each other to enter the fully closed state and the fully opened state, the first contact portion (502) and the third contact portion (601) are in contact with each other.

3. The hinge structure according to claim 2, characterized in that: The connecting arm (5) is provided with two first contact portions (502) and two second contact portions (503) around the through hole, the first contact portions (502) and the second contact portions (503) are alternately arranged along the circumferential direction of the through hole, and the two first contact portions (502) are centrally symmetrical; and / or, Two third contact portions (601) and two fourth contact portions (602) are correspondingly arranged on a side surface of the matching piece (6) facing the connecting arm (5); the third contact portions (601) and the fourth contact portions (602) are correspondingly arranged alternately along the circumferential direction of the hinge shaft (2); and the two third contact portions (601) are centrally symmetrical.

4. The hinge structure according to claim 1, characterized in that: On the end surface of the connecting arm (5) opposite to the matching piece (6), the first contact portion (502) and the third contact portion (601) protrude from the end surface.

5. The hinge structure according to claim 4, characterized in that: A transition connection surface (10) is provided at the connection point between the first contact portion (502) and the second contact portion (503), and at the connection point between the third contact portion (601) and the fourth contact portion (602).

6. The hinge structure according to claim 1, characterized in that: The outer side wall of the hinge shaft (2) comprises an arc surface (201) and a non-circular surface (202); the non-circular surface (202) is connected to the arc surface (201) and extends along the axial direction of the hinge shaft (2); the non-circular surface (202) is arranged inside a space enclosed by a circumscribed circular surface corresponding to the arc surface (201).

7. The hinge structure according to claim 6, characterized in that: The matching piece (6) comprises an annular body (603) and an axial hole (604) provided in the annular body (603); the axial hole (604) matches the shape of the hinge shaft (2); the matching piece (6) is sleeved with the hinge shaft (2) in a circumferentially limited manner through the axial hole (604).

8. The hinge structure according to any one of claims 1 to 7, characterized in that: Also includes: The auxiliary adjustment unit is arranged on a pair of the hinge shafts (2), and comprises an auxiliary adjustment member (7) and an elastic member (8). The elastic member (8) is arranged between the combination of the connecting arm (5) and the matching member (6) and the auxiliary adjustment member (7). The auxiliary adjustment member (7) and the hinge shaft (2) are movable and limited, and are suitable for axial movement under external force.

9. The hinge structure according to claim 8, characterized in that: A plurality of the elastic members (8) are respectively disposed on a pair of the hinge shafts (2), and adjacent elastic members (8) are interlocked to form an elastic cavity.

10. The hinge structure according to claim 6, characterized in that: Each of the opening and closing members (4) comprises an opening and closing body (404) and the first end (401) and the second end (402) arranged at both ends of the opening and closing body (404); the first end (401) is axially provided with a sleeve hole (405) matching the shape of the hinge shaft (2); the first end (401) is sleeved on the hinge shaft (2) along a circumferential limit direction through the sleeve hole (405); the second end (402) is provided with a movable member (403); at least one end of the movable member (403) extends into the motion trajectory limiting structure (102).

11. The hinge structure according to claim 10, characterized in that: The motion track limiting structure (102) is arranged in a bent manner, and comprises a first hole segment and a second hole segment arranged at an angle to and connected to the first hole segment.

12. The hinge structure according to claim 10 or 11, characterized in that: Each of the seat bodies (1) comprises a first sub-body (103) and a second sub-body (105); the first sub-body (103) and the second sub-body (105) are arranged opposite to each other and fixedly connected by a seat body fastener (107); the accommodating cavity (101) is formed between the first sub-body (103) and the second sub-body (105); and the motion trajectory limiting structure (102) is respectively arranged on the opposite side walls of the first sub-body (103) and the second sub-body (105).

13. The hinge structure according to claim 12, characterized in that: The first split body (103) is provided with a snap-fitting portion (104), and the second split body (105) is provided with a snap-fitting portion (106), and the snap-fitting portion (106) and the snap-fitting portion (104) are snap-fitted and limited in position in a detachable manner.

14. The hinge structure according to claim 12, characterized in that: The seat body (1) is also provided with a limiting hole (108), and the connecting portion (501) of the connecting arm (5) is fixedly connected to the limiting hole (108) from the outside of the seat body (1).

15. The hinge structure according to claim 12, characterized in that: Each of the base bodies (1) further comprises at least one extension portion (109), wherein the extension portion (109) is arranged on the outer wall and / or edge of the base body (1) and extends toward the circumference of the base body (1), and a fixing hole (110) is arranged thereon, and the fixing hole (110) is suitable for connecting an external structure.

16. The hinge structure according to claim 15, characterized in that: The extension portion (109) is also provided with a positioning hole (111).

17. An electronic device, characterized in that: include: First subject (11); Second subject (12); The hinge structure according to any one of claims 1 to 16, wherein a pair of base bodies (1) of the hinge structure are respectively connected to the first body (11) and the second body (12).

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