Pivot device and electronic device using same

Abstract

A pivot device comprises a base, two first supports, two fixing seats, two rotating shafts, two torsion generating pieces, two second supports and two supporting plates. The base is provided with two opposite first arc-shaped sliding connection parts. Each first support is provided with a second arc-shaped sliding connection part and a first pivoting part, and the first arc-shaped sliding connection part is connected with the second arc-shaped sliding connection part in a sliding mode. Each fixing seat comprises a pivoting piece, a positioning piece, a second pivoting part, a first linear sliding part and a third arc-shaped sliding part, the first pivoting part and the second pivoting part are pivoted through the pivoting piece, and the positioning piece positions the pivoting piece. The two rotating shafts are pivoted to the base. The two torsion generating pieces are arranged on the two rotating shafts. Each second support is provided with a connecting part, a second linear sliding connection part and a guide rod part, the connecting part is fixedly connected to the rotating shaft in a sleeving mode, and the first linear sliding connection part is slidably connected with the second linear sliding connection part. Each supporting plate is provided with a fourth arc-shaped sliding connection part and a sliding rail part, the third arc-shaped sliding connection part is slidably connected with the fourth arc-shaped sliding connection part, and the guide rod part is slidably connected to the sliding rail part. The pivot device is simple in structure, convenient to assemble and capable of reducing cost and assembly tolerance.

Description

Technical Field

[0001] The utility model relates to a hinge device and an electronic device using the same, in particular to a hinge device applicable to a flexible display component and an electronic device using the same. Background Art

[0002] An existing electronic device includes a hinge mechanism, two plates and a flexible display component. The hinge mechanism is connected between the two plates so that the two plates can be relatively expanded and retracted. The flexible display component is arranged on the hinge mechanism and the two plates, and thus will be correspondingly expanded and retracted as the two plates are relatively expanded and retracted. When the two plates are relatively expanded to a relative angle of 180 degrees, the two side portions of the flexible display component are respectively flat and fixed to the two plates, while the middle portion of the flexible display component is flat but not fixed to the hinge mechanism. As the two plates are retracted to a smaller relative angle, the hinge mechanism can provide an avoidance function and give up a larger space as the relative angle between the two plates becomes smaller, so that the middle portion of the flexible display component can bend normally without being compressed by the hinge mechanism. However, the hinge mechanism of such existing electronic devices is usually more complex in structure and less convenient to assemble. Utility Model Content

[0003] The purpose of the utility model is to provide a hub and an electronic device using the hub, which has a simpler structure and is more convenient to assemble.

[0004] To achieve the above-mentioned purpose, the utility model proposes a hinge device, including a base, two first brackets, two fixed seats, a fixed frame, two rotating shafts, two torque generating members, a co-moving member, two second brackets and two support plates. The base has two opposite first side surfaces, each of which is provided with a first arc-shaped sliding portion. Each first bracket is provided with a second arc-shaped sliding portion and a first pivoting portion, and the second arc-shaped sliding portion is slidably connected to the corresponding first arc-shaped sliding portion. Each fixed seat includes a body, a pivoting member and a positioning member, the body is provided with a second pivoting portion, a first linear sliding portion and a third arc-shaped sliding portion, the second pivoting portion is pivotally connected to the corresponding first pivoting portion through a pivoting member, and the positioning member positions the pivoting member on the body. The fixed frame is arranged on the second side surface of the base, and the second side surface is adjacent to the two first side surfaces. The two rotating shafts are parallel to each other and are pivotally arranged on the fixed frame. The two torque generating members are respectively arranged on the two rotating shafts. The co-moving member is arranged between the two rotating shafts, so that the two rotating shafts can rotate simultaneously in opposite directions. Each second bracket is provided with a connecting portion, a second linear sliding portion and a guide rod portion, the connecting portion is fixedly sleeved on the corresponding rotating shaft, and the second linear sliding portion is slidably connected to the corresponding first linear sliding portion. Each support plate is provided with a fourth arc-shaped sliding portion and a slide rail portion, the fourth arc-shaped sliding portion is slidably connected to the corresponding third arc-shaped sliding portion, and the guide rod portion is slidably connected to the slide rail portion.

[0005] In one embodiment of the utility model, the base includes a base body and a cover body. The base body is provided with two arc-shaped grooves, and the cover body is provided with two arc-shaped protrusions. The two arc-shaped grooves and the two arc-shaped protrusions form two first arc-shaped sliding parts when the cover body is covered on the base body.

[0006] In one embodiment of the utility model, the first arc sliding portion and the second arc sliding portion are both arc-shaped and the center of curvature is located at a first virtual axis, and the first virtual axis is located outside the base and parallel to the base. Each first bracket is rotatably mounted on the base and rotates around the corresponding first virtual axis.

[0007] In one embodiment of the utility model, each pivot member includes a shaft and a through-hole connected to one end of the shaft. The positioning member includes a screw and a screw hole provided in the body. The first pivot member and the second pivot member are pivotally connected to the shaft. The screw passes through the through-hole and is screwed to the screw hole to position the pivot member on the body.

[0008] In one embodiment of the utility model, each pivot member includes a shaft, a head connected to one end of the shaft, and a concave ring portion provided on the circumference of the other end of the shaft. The positioning member includes a snap-fit ​​piece. The first pivoting portion and the second pivoting portion are pivotally connected to the shaft. The snap-fit ​​piece is snapped to the concave ring portion to position the pivot member on the body.

[0009] In one embodiment of the utility model, one end of the third arc-shaped sliding part close to the base is a first open end, and the other end of the third arc-shaped sliding part is a first closed end. The fourth arc-shaped sliding part slides into the third arc-shaped sliding part through the first open end. One end of the slide rail part close to the second bracket is a second open end, and the other end of the slide rail part is a second closed end. The guide rod part slides into the slide rail part through the second open end.

[0010] In one embodiment of the utility model, the third arc sliding portion and the fourth arc sliding portion are both arc-shaped and the center of curvature is located at the second virtual axis, the second virtual axis is located outside the fixing seat and parallel to the fixing seat. Each support plate is rotatably mounted on the fixing seat and rotates around the corresponding second virtual axis.

[0011] In one embodiment of the utility model, each torque generating member includes a first concave cam, a second concave cam and a spring, the second concave cam is located between the first concave cam and the spring, the first concave cam is fixedly sleeved on the corresponding rotating shaft, and the second concave cam is slidably sleeved on the corresponding rotating shaft.

[0012] In one embodiment of the utility model, the moving member includes two gears. Each gear is fixedly sleeved on a corresponding rotating shaft. The two gears mesh with each other.

[0013] The utility model also proposes an electronic device, including a hinge mechanism, two plates and a flexible display component. The hinge mechanism includes the hinge device as described above. The two plates are respectively fixedly connected to two fixing seats of the hinge device. The flexible display component is arranged on the hinge mechanism and the two plates, and abuts against two supporting plates of the hinge device.

[0014] In summary, according to the embodiment of the hinge device of the utility model and the electronic device using the same, the first bracket and the fixed seat are pivotally connected and positioned by the pivot member and the positioning member, and the assembly structure is simple. The flat plate portion, the fourth arc-shaped sliding portion and the slide rail portion of the support plate are integrally formed parts, which can reduce the number of components, reduce costs and reduce assembly tolerance problems. In addition, the base may include a base body and a cover body. When assembling, the second arc-shaped sliding portions of the two first brackets are first placed in the two arc-shaped grooves of the base body respectively, and then the cover body is covered on the base body to complete the assembly, which is convenient to assemble.

[0015] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below with reference to the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of an electronic device according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 A partially exploded view of the electronic device shown.

[0018] Figure 3 for Figure 2 A partial exploded view of the hinge mechanism and two plates of the electronic device shown.

[0019] Figure 4 for Figure 3 A partially exploded view of the hinge mechanism of the electronic device shown.

[0020] Figure 5 It is a three-dimensional diagram of a hinge device according to an embodiment of the present invention.

[0021] Figure 6 for Figure 5 Partial exploded view of the hub shown.

[0022] Figure 7 and Figure 8 for Figure 6 Exploded views of the base and the first bracket at different viewing angles.

[0023] Fig. 9 for Figure 6 A cross-sectional view of the base is shown.

[0024] Fig.10 for Figure 6 An exploded view of the fixing frame, the rotating shaft, the torque generating member, the co-moving member and the second bracket is shown.

[0025] Fig.11 for Figure 6 The exploded view and assembly view of the fixing base and the support plate are shown.

[0026] Fig.12 for Figure 6 The connection diagram of each module is shown.

[0027] Fig.13 for Fig.12 Schematic diagram of the positioning of each module after connection.

[0028] Fig.14 This is a partial exploded view of a hinge device according to another embodiment of the present invention.

[0029] Fig.15 for Figure 1 The illustrated electronic device is a partial cross-sectional view of two plates with a relative angle of 180 degrees.

[0030] Fig.16 for Figure 1 The partial cross-sectional view of the electronic device is shown in which the two plates are at a relative angle of 90 degrees.

[0031] Fig.17 for Figure 1 The partial cross-sectional view of the electronic device is shown in which the relative angle between the two plates is 0 degrees. DETAILED DESCRIPTION

[0032] In the following embodiments, the same or similar reference numerals represent the same or similar components. In addition, the directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the drawings, and therefore, the directional terms used are for illustration, not for limiting the present invention.

[0033] Please also refer to Figures 1 to 3 , Figure 1 This is a three-dimensional diagram of an electronic device according to an embodiment of the present invention. Figure 2 for Figure 1 A partially exploded view of the electronic device shown, Figure 3 for Figure 2A partial exploded view of the hinge mechanism 100 and two plates 200 of the electronic device shown. The electronic device includes a hinge mechanism 100, two plates 200 and a flexible display member 300. The hinge mechanism 100 is connected between the two plates 200 so that the two plates 200 can be relatively expanded and retracted. The flexible display member 300 is disposed on the hinge mechanism 100 and the two plates 200, and thus will be expanded and retracted correspondingly with the relative expansion and retraction of the two plates 200. When the two plates 200 are relatively expanded to a relative angle of 180 degrees, the two side portions of the flexible display member 300 are respectively flat and fixed to the two plates 200, while the middle portion of the flexible display member 300 is flat but not fixed to the hinge mechanism 100. As the two plates 200 are folded to a smaller relative angle, the hinge mechanism 100 can provide an avoidance function and leave a larger space as the relative angle between the two plates 200 decreases, so that the middle part of the flexible display element 300 can bend normally without being compressed by the hinge mechanism 100. More specific description will be given later.

[0034] Please refer to Figure 4 , Figure 4 for Figure 3 A partial exploded view of a hinge mechanism 100 of an electronic device shown. The hinge mechanism 100 includes three hinges 1, a spine shield 2, and two support plates 3; but not limited thereto, for example, the number of hinges 1 and support plates 3 can be adjusted as needed. The hinge 1 is fixedly connected to the inner side of the spine shield 2. The spine shield 2 can prevent foreign matter from entering to protect the hinge 1, and when the two plates 200 are relatively folded, the outer side of the spine shield 2 can also provide an aesthetic appearance. The support plates 3 are fixedly connected to the hinge 1. Each hinge 1 has two support plates 90, and the support plates 90 of these hinges 1 can be connected together accordingly. As shown Figure 2 As shown, when the two plates 200 are relatively unfolded to 180 degrees, the support plate 90 and the support plate 3 form a planar support plate to support the planar middle portion of the flexible display member 300. As the two plates 200 are relatively folded to a smaller relative angle, the support plate 90 rotates to form a teardrop-shaped space with the support plate 3 to accommodate the curved middle portion of the flexible display member 300, that is, the hinge device 1 can provide the avoidance function required by the hinge mechanism 100, so that the middle portion of the flexible display member 300 can bend normally without being compressed by the hinge mechanism 100. A more specific description will be given later.

[0035] Please also refer to Figure 5 and Figure 6 , Figure 5 This is a three-dimensional diagram of a hub device 1 according to an embodiment of the present invention. Figure 6 for Figure 5The partially exploded view of the hub device 1 is shown. The hub device 1 includes a base 10, two first brackets 20, two fixed bases 30, a fixed frame 40, two rotating shafts 50, two torque generating members 60, a synchronous member 70, two second brackets 80 and two support plates 90. The base 10, the two first brackets 20 and the two fixed bases 30 form an opening and closing module, which is responsible for the relative expansion and folding positions of the two plate bodies 200 of the electronic device. The fixed frame 40, the two rotating shafts 50, the two torque generating members 60, the synchronous member 70 and the two second brackets 80 form a torque synchronous module, which is responsible for torque generation and synchronous movement. The two support plates 90 are responsible for providing support for the flexible display member 300 when the two plate bodies 200 are relatively expanded to 180 degrees, and providing a avoidance position for the flexible display member 300 when the two plate bodies 200 are relatively folded to a small relative angle.

[0036] A method of assembling the hinge 1 will be described below.

[0037] In the first step, the base 10 and the two first brackets 20 are assembled to form a first module. Figures 7 to 9 , Figure 7 and Figure 8 for Figure 6 The exploded view of the base 10 and the first bracket 20 at different viewing angles is shown. Fig. 9 for Figure 6 The sectional view of the base 10 is shown in FIG. The base 10 has two opposite first side surfaces 10a and two opposite second side surfaces 10b, and each second side surface 10b is adjacent to the two first side surfaces 10a. The base 10 includes a base body 11 and a cover body 12. The base body 11 is provided with two arc-shaped grooves 111, and the cover body 12 is provided with two arc-shaped protrusions 121. When the cover body 12 is covered on the base body 11, the two arc-shaped grooves 111 and the two arc-shaped protrusions 121 respectively form two first arc-shaped sliding parts 13 (such as Fig. 9 As shown). Each first bracket 20 is provided with a second arc-shaped sliding portion 21 and a first pivoting portion 22, and the second arc-shaped sliding portion 21 is slidably connected to the corresponding first arc-shaped sliding portion 13; thereby, the two first brackets 20 are rotatably mounted on the two opposite first side surfaces 10a of the base 10. In the present utility model, when assembling, the second arc-shaped sliding portions 21 of the two first brackets 20 are firstly placed into the two arc-shaped grooves 111 of the base 11, and then the cover 12 is covered on the base 11 to complete the assembly, which is convenient for assembly.

[0038] In this embodiment, the base 10 further includes a screw 14. The base 11 further includes a through hole 112, and the cover 12 further includes a screw hole 122. The screw 14 passes through the through hole 112 and is screwed into the screw hole 122 to fix the cover 12 on the base 11. However, the present invention is not limited thereto, and for example, the base 11 and the cover 12 may be redesigned to include buckle parts respectively, and when the cover 12 is covered on the base 11, the buckle parts are buckled with each other to fix the cover 12 on the base 11.

[0039] In this embodiment, the first arc-shaped sliding portion 13 and the second arc-shaped sliding portion 21 are both arc-shaped and the center of curvature is located at the first virtual axis, and the first virtual axis is located outside the base 10 and parallel to the base 10. Each first bracket 20 is rotatably mounted on the corresponding first side surface 10a of the base 10 and rotates around the corresponding first virtual axis.

[0040] In the second step, the fixing frame 40, the two rotating shafts 50, the two torque generating members 60, the synchronous member 70 and the two second brackets 80 are assembled to form a second module (ie, a torque synchronous module). Fig.10 , Fig.10 for Figure 6 The exploded view of the fixed frame 40, the rotating shaft 50, the torque generating member 60, the co-moving member 70 and the second bracket 80 is shown. The two rotating shafts 50 are parallel to each other and are pivoted on the fixed frame 40. The two torque generating members 60 are respectively arranged on the two rotating shafts 50. The co-moving member 70 is arranged between the two rotating shafts 50 so that the two rotating shafts 50 can rotate simultaneously in opposite directions. Each second bracket 80 is provided with a connecting portion 81, a second linear sliding portion 82 and a guide rod portion 83, and the connecting portion 81 is fixedly sleeved on the corresponding rotating shaft 50.

[0041] In this embodiment, the fixing frame 40 includes a first fixing frame 41, a second fixing frame 42, a third fixing frame 43 and a buckle piece 44. Two rotating shafts 50 are pivotally arranged on the first fixing frame 41, the second fixing frame 42 and the third fixing frame 43. Each torque generating member 60 is arranged on the corresponding rotating shaft 50 and is located between the second fixing frame 42 and the third fixing frame 43. Each torque generating member 60 includes a first concave cam 61, a second concave cam 62 and a spring 63, and the second concave cam 62 is located between the first concave cam 61 and the spring 63. The first concave cam 61 is fixedly sleeved on the corresponding rotating shaft 50. In this embodiment, the fixed sleeve function is realized by sleeve-fitting the non-circular hole of the first concave cam 61 on the non-circular shaft portion corresponding to the non-circular hole on the rotating shaft 50, so that the first concave cam 61 rotates together with the rotating shaft 50. The second concave cam 62 is slidably sleeved on the corresponding rotating shaft 50. In this embodiment, the circular hole of the second concave cam 62 is sleeved on the circular shaft portion corresponding to the circular hole on the rotating shaft 50 to achieve the sliding sleeve function, so that the second concave cam 62 can slide along the rotating shaft 50. In addition, the two second concave cams 62 of the two torque generating members 60 can be connected to each other.

[0042] In this embodiment, the co-moving member 70 includes two gears 71. Each gear 71 is fixedly sleeved on the corresponding rotating shaft 50. The two gears 71 mesh with each other. In addition, the co-moving member 70 may also include an even number of idler gears 72, which mesh with each other in sequence and then mesh between the two gears 71, that is, the two gears 71 mesh with each other through the idler gears 72. The two rotating shafts 50 can rotate simultaneously in opposite directions through the co-moving member 70, and since each second bracket 80 is fixedly sleeved on the corresponding rotating shaft 50 through the connecting portion 81, the two second brackets 80 will rotate together with the rotating shaft 50 and can also rotate simultaneously in opposite directions.

[0043] In this embodiment, one end of each rotating shaft 50 has a concave ring portion 51, which passes through the third fixing frame 43 and is locked with the locking piece 44. In this way, the second fixing frame 42 abuts against the gear 71 fixedly sleeved on the rotating shaft 50, and the third fixing frame 43 abuts against the concave ring portion 51 locked on the rotating shaft 50, so that the distance between the second fixing frame 42 and the third fixing frame 43 is fixed. Therefore, when the rotating shaft 50 rotates, it drives the first concave cam 61 fixedly sleeved thereon to rotate, and the rotating first concave cam 61 pushes the second concave cam 62 to slide along the rotating shaft 50 and compresses the spring 63 to generate torque, and this torque is transmitted to the second bracket 80 fixedly sleeved on the rotating shaft 50.

[0044] In the third step, the two fixing bases 30 and the two supporting plates 90 are assembled to form a third module. Fig.11 , Fig.11 for Figure 6 The exploded view and the assembled view of the fixing seat 30 and the support plate 90 are shown. Figure 6 As shown, the main body 31, the pivot member 32 and the positioning member 33 are included. Fig.11 The second pivoting portion 34, the first linear sliding portion 35 and the third arcuate sliding portion 36 are shown; wherein, the end of the third arcuate sliding portion 36 close to the base 10 is a first open end 361, and the other end of the third arcuate sliding portion 36 is a first closed end 362. Each support plate 90 includes a flat plate portion 91, a fourth arcuate sliding portion 92 and a slide rail portion 93 arranged below the flat plate portion 91; wherein, the end of the slide rail portion 93 close to the second bracket 80 is a second open end 931, and the other end of the slide rail portion 93 is a second closed end 932. The fourth arcuate sliding portion 92 of the support plate 90 slides into the third arcuate sliding portion 36 through the first open end 361 of the third arcuate sliding portion 36, and then the fourth arcuate sliding portion 92 of the support plate 90 is slidably connected to the third arcuate sliding portion 36 of the fixing seat 30. In the present invention, the flat plate portion 91 , the fourth arc-shaped sliding portion 92 and the sliding rail portion 93 of the support plate 90 are integrally formed, which can reduce the number of components, lower costs and reduce assembly tolerance issues.

[0045] In this embodiment, the third arc-shaped sliding portion 36 and the fourth arc-shaped sliding portion 92 are both arc-shaped and the center of curvature is located at the second virtual axis, and the second virtual axis is located outside the fixed seat 30 and parallel to the fixed seat 30. Each support plate 90 is rotatably mounted on the fixed seat 30 and rotates around the corresponding second virtual axis. In addition, the third arc-shaped sliding portion 36 is an arc-shaped concave track, and the fourth arc-shaped sliding portion 92 is an arc-shaped convex track corresponding to the aforementioned arc-shaped concave track; but it is not limited to this, for example, the third arc-shaped sliding portion 36 and the fourth arc-shaped sliding portion 92 can be respectively changed to a corresponding arc-shaped convex track and an arc-shaped concave track.

[0046] The last step is to assemble the modules assembled in the first three steps. Fig.12 and Fig.13 , Fig.12 for Figure 6 The connection diagram of each module is shown in the figure. Fig.13 for Fig.12 The schematic diagram of the positioning of each module after connection is shown. First, the first module (i.e., the assembled base 10 and the first bracket 20) and the second module (i.e., the torque synchronization module) are assembled. In this embodiment, the base 10 is as shown in FIG. Figure 7 As shown in FIG. 1 , two pivot holes 113 are provided on the second side surface 10b, and one end of each rotating shaft 50 is pivotally connected to the corresponding pivot hole 113, so that the torque synchronization module is disposed on the second side surface 10b of the base 10, that is, the fixing frame 40 in the torque synchronization module is disposed on the second side surface 10b of the base 10, and the assembly of the first module and the second module is completed (as shown in FIG. Fig.12 In addition, the base 10 is as shown Figure 7 As shown in FIG. 1 , two first limiting portions 114 are further provided on the second side surface 10 b. Fig.10 As shown, a second limiting portion 84 is further provided, and each second limiting portion 84 cooperates with the corresponding first limiting portion 114 to control the maximum rotation stroke of the corresponding second bracket 80 .

[0047] Next, the assembled first module and the second module are further assembled with the third module (i.e., the assembled fixing seat 30 and the support plate 90). The second linear sliding portion 82 of each second bracket 80 is slidably connected to the first linear sliding portion 35 of the corresponding fixing seat 30, and at the same time, the guide rod portion 83 of each second bracket 80 slides into the slide rail portion 93 through the second open end 931 of the slide rail portion 93 of the corresponding support plate 90, and then the guide rod portion 83 of the second bracket 80 is slidably connected to the slide rail portion 93 of the support plate 90. At this time, the first pivoting portion 22 of each first bracket 20 is aligned with the second pivoting portion 34 of the corresponding fixing seat 30 (such as Fig.13 Then, the second pivoting portion 34 is pivotally connected to the corresponding first pivoting portion 22 through the pivoting member 32, and the positioning member 33 positions the pivoting member 32 on the body 31 (as shown in the upper left). Fig.13The first bracket 20 and the fixing seat 30 are not separated, and the assembly of the entire hinge device 1 is completed. In the utility model, the first bracket 20 and the fixing seat 30 are pivotally connected and positioned by the pivoting member 32 and the positioning member 33, and the assembly structure is simple.

[0048] In the present embodiment, the first linear sliding portion 35 is a linear concave rail, and the second linear sliding portion 82 is a linear convex rail corresponding to the aforementioned linear concave rail; but not limited thereto, for example, the first linear sliding portion 35 and the second linear sliding portion 82 can be respectively changed to a corresponding linear convex rail and a linear concave rail. In the present embodiment, each pivot member 32 includes a shaft portion 321 and a through-hole portion 322 connected to one end of the shaft portion 321. The positioning member 33 includes a screw 331 and a screw hole 332 provided on the body 31. The first pivoting portion 22 and the second pivoting portion 34 are pivotally connected to the shaft portion 321. The screw 331 passes through the through-hole portion 322 and is screwed to the screw hole 332 to position the pivot member 32 on the body 31.

[0049] Please refer to Fig.14 , Fig.14 This is a partial exploded view of a hinge device according to another embodiment of the present invention. Fig.13 Compared with the hub shown in the figure, the difference between the two embodiments is Fig.14 The pivot member 32' and the positioning member 33' of the fixing seat of the hub device are shown. Each pivot member 32' includes a shaft portion 321', a head portion 322' connected to one end of the shaft portion 321', and a concave ring portion 323' provided on the circumference of the other end of the shaft portion 321'. The positioning member 33' includes a snap-on piece 331'. The first pivot portion 22 and the second pivot portion 34 are pivotally connected to the shaft portion 321'. The snap-on piece 331' is snapped on the concave ring portion 323' to position the pivot member 32' on the body 31.

[0050] Please also refer to Figures 15 to 17 , Figures 15 to 17 They are Figure 1 The two plates 200 of the electronic device are shown in partial cross-sectional views at relative angles of 180 degrees, 90 degrees and 0 degrees. For the sake of clarity, the two plates 200 of the electronic device and the back shield 2 and other components are omitted in the figure, and the left half is a cross-sectional view and the right half is a side view. The two plates 200 of the electronic device are respectively fixedly connected to the two fixing seats 30 of the hub 1, so the relative expansion and contraction positions of the fixing seats 30 in the figure are the relative expansion and contraction positions of the two plates 200.

[0051] like Fig.15As shown, when the relative angle between the two plates 200 of the electronic device is 180 degrees, the guide rod portion 83 of the second bracket 80 is located at the second closed end 932 of the slide rail portion 93 of the support plate 90, so that the support plate 90 rotates around the curvature center of the fourth arc-shaped sliding portion 92 (located at the second virtual axis) to the same horizontal state as the two plates 200 and can support the middle portion of the flexible display element 300 in a planar shape. Fig.16 As shown, when the relative angle between the two plates 200 of the electronic device is 90 degrees, the guide rod portion 83 of the second bracket 80 is located in the middle of the slide rail portion 93 of the support plate 90, so that the support plate 90 rotates around the curvature center of the fourth arc-shaped sliding portion 92 and begins to tilt outward to make room. Fig.17 As shown, when the relative angle between the two plates 200 of the electronic device is 0 degrees, the guide rod portion 83 of the second bracket 80 is close to the second open end 931 of the slide rail portion 93 of the support plate 90, so that the support plate 90 rotates around the center of curvature of the fourth arc-shaped sliding portion 92 to tilt outward to the maximum and leave a larger space to form a teardrop-shaped space, so that the curved middle portion of the flexible display component 300 can bend normally without being compressed.

[0052] In the present invention, the track shape design of the slide rail portion 93 is used to control the tilt degree of the support plate 90 at each relative angle between the two plate bodies 200. In addition, the second closed end 932 of the slide rail portion 93 and the first closed end 362 of the third arc-shaped sliding portion 36 are designed to control the maximum rotation stroke of the support plate 90 and prevent the support plate 90 from detaching from the fixing seat 30.

[0053] In summary, according to the embodiment of the hinge device of the utility model and the electronic device using the same, the first bracket and the fixed seat are pivotally connected and positioned by the pivot member and the positioning member, and the assembly structure is simple. The flat plate portion, the fourth arc-shaped sliding portion and the slide rail portion of the support plate are integrally formed parts, which can reduce the number of components, reduce costs and reduce assembly tolerance problems. In addition, the base may include a base body and a cover body. When assembling, the second arc-shaped sliding portions of the two first brackets are first placed in the two arc-shaped grooves of the base body respectively, and then the cover body is covered on the base body to complete the assembly, which is convenient to assemble.

[0054] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the claims.

Claims

1. A hub, characterized in that include: The base has two opposite first side surfaces, each of the first side surfaces is provided with a first arc-shaped sliding portion; Two first brackets, each of the first brackets is provided with a second arc-shaped sliding portion and a first pivoting portion, and the second arc-shaped sliding portion is slidably connected to the corresponding first arc-shaped sliding portion; Two fixing seats, each of which comprises a body, a pivoting member and a positioning member, the body is provided with a second pivoting portion, a first linear sliding portion and a third arc-shaped sliding portion, the second pivoting portion is pivotally connected to the corresponding first pivoting portion through the pivoting member, and the positioning member positions the pivoting member on the body; A fixing frame, disposed on a second side surface of the base, wherein the second side surface is adjacent to between the two first side surfaces; Two rotating shafts, parallel to each other and pivotally mounted on the fixing frame; Two torque generating members are respectively arranged on the two rotating shafts; A synchronous moving member is disposed between the two rotating shafts, so that the two rotating shafts can rotate simultaneously in opposite directions; Two second brackets, each of the second brackets is provided with a connecting portion, a second linear sliding portion and a guide rod portion, the connecting portion is fixedly sleeved on the corresponding rotating shaft, and the second linear sliding portion is slidably connected to the corresponding first linear sliding portion; and Two support plates, each of which is provided with a fourth arc-shaped sliding portion and a sliding rail portion, the fourth arc-shaped sliding portion is slidably connected to the corresponding third arc-shaped sliding portion, and the guide rod portion is slidably connected to the sliding rail portion.

2. The hinge device according to claim 1, characterized in that: The base includes a base body and a cover body, the base body is provided with two arc-shaped grooves, the cover body is provided with two arc-shaped protrusions, and the two arc-shaped grooves and the two arc-shaped protrusions form two first arc-shaped sliding parts when the cover body is covered on the base body.

3. The hinge device according to claim 1, characterized in that: The first arc sliding portion and the second arc sliding portion are both arc-shaped and the center of curvature is located on a first virtual axis. The first virtual axis is located outside the base and parallel to the base. Each of the first brackets is rotatably mounted on the base and rotates around the corresponding first virtual axis.

4. The hinge device according to claim 1, characterized in that: Each of the pivotal members includes a shaft and a through-hole portion connected to one end of the shaft, the positioning member includes a screw and a screw hole provided on the main body, the first pivotal member and the second pivotal member are pivotally connected to the shaft, the screw passes through the through-hole portion and is screwed to the screw hole to position the pivotal member on the main body.

5. The hinge device according to claim 1, characterized in that: Each of the pivotal members includes a shaft, a head connected to one end of the shaft, and a concave ring portion arranged on the circumference of the other end of the shaft. The positioning member includes a snap-on piece. The first pivotal portion and the second pivotal portion are pivotally connected to the shaft. The snap-on piece is snapped into the concave ring portion to position the pivotal member on the main body.

6. The hinge device according to claim 1, characterized in that: One end of the third arcuate sliding portion close to the base is a first open end, and the other end of the third arcuate sliding portion is a first closed end, and the fourth arcuate sliding portion slides into the third arcuate sliding portion through the first open end; one end of the slide rail portion close to the second bracket is a second open end, and the other end of the slide rail portion is a second closed end, and the guide rod portion slides into the slide rail portion through the second open end.

7. The hinge device according to claim 1, characterized in that: The third arc-shaped sliding portion and the fourth arc-shaped sliding portion are both arc-shaped and the center of curvature is located on the second virtual axis. The second virtual axis is located outside the fixed seat and parallel to the fixed seat. Each support plate is rotatably mounted on the fixed seat and rotates around the corresponding second virtual axis.

8. The hinge device according to claim 1, characterized in that: Each of the torque generating members includes a first concave cam, a second concave cam and a spring, wherein the second concave cam is located between the first concave cam and the spring, the first concave cam is fixedly sleeved on the corresponding rotating shaft, and the second concave cam is slidably sleeved on the corresponding rotating shaft.

9. The hinge device according to claim 1, characterized in that: The co-moving member includes two gears, each of which is fixedly sleeved on the corresponding rotating shaft, and the two gears are meshed with each other.

10. An electronic device, characterized in that include: A hinge mechanism, comprising a hinge device as claimed in any one of claims 1 to 9; Two plates are respectively fixedly connected to the two fixing seats of the hub; as well as The flexible display component is arranged on the hinge mechanism and the two plates, and abuts against the two supporting plates of the hinge mechanism.

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