CN111277690B - A 360° hinge and mobile terminal - Google Patents

The invention discloses a 360-degree hinge and a mobile terminal, which comprises a hinge mechanism, wherein the hinge mechanism comprises eight horizontally arranged outer steel bars, four synchronous folding mechanisms used for realizing smooth and synchronous rotation of a terminal shell at 0-360 degrees and supporting a flexible screen in a constant length way by matching with a first back adhesive plate are arranged on the inner sides of the eight outer steel bars, a damping mechanism is provided with a guide mechanism used for carrying out folding distance compensation on a back adhesive bottom plate of the hinge mechanism and providing a hinge rotation damping effect when the hinge rotates, and the guide mechanism is provided with a connecting end used for connecting the terminal shell.

360-Degree hinge and mobile terminal

Technical Field

The invention relates to the field of electronic equipment, in particular to a 360-degree hinge and a mobile terminal.

Background

Flexible screens are an emerging screen. For an external flexible screen mobile terminal in which a flexible screen is provided outside the mobile terminal, it is necessary to cope with a length change generated by closing and opening of a hinge. For the middle part of the hinge, some hinges adopt a structure of a plurality of supporting bodies to realize the support and shape change when bending and flattening.

However, the conventional flexible screen folding terminal is generally of a single inward folding type or outward folding type, the folding range is limited, meanwhile, the folding hinge actuating members used by the folding terminal are more and complex, a great amount of labor cost and time cost are required to be input in the design process and the manufacturing process of various actuating mechanisms, in addition, the conventional hinge is relatively low in stability due to poor linkage in the rotating process of the conventional hinge due to the complex actuating mechanism, the flexible screen used by the conventional flexible screen folding terminal is relatively easy to damage, the service life of the terminal is virtually reduced, and the conventional folding hinge is relatively poor in adaptability to different types of mobile terminals, so that the use of the terminal hinge is greatly limited.

Disclosure of Invention

The invention aims to provide a 360-degree hinge and a mobile terminal, which are used for solving the problems that in the rotating process of the traditional hinge provided in the background technology, due to the fact that an action mechanism is complex, the linkage is poor, the stability is low, a flexible screen used in a matching manner is easy to damage, the service life of the terminal is prolonged in an intangible way, and the adaptability of the traditional stacked hinge to different types of mobile terminals is poor.

In order to achieve the purpose, the invention provides the technical scheme that the 360-degree hinge comprises a hinge mechanism, wherein the hinge mechanism comprises eight horizontally arranged outer steel bars, four synchronous folding mechanisms for realizing 0-360-degree smooth synchronous rotation of a terminal shell and constant-length support of a flexible screen by matching with a first back glue plate are arranged on the inner sides of the eight outer steel bars, and a synchronous tooth buckle group for rotating and matching with a plurality of rotating shafts of the synchronous folding mechanisms is arranged in the synchronous folding mechanism, so that mechanical feedback is provided when the hinge rotates smoothly, and the synchronous tooth buckle group corresponding to the damping mechanism is driven to rotate synchronously;

The damping mechanism is provided with a guide mechanism for compensating the folding distance of the back adhesive bottom plate of the hinge mechanism and providing the hinge rotation damping function when the hinge rotates, and the guide mechanism is provided with a connecting end for connecting the terminal shell;

the hinge mechanism further comprises a left finger rail and a right finger rail which are positioned on two sides of the top of the synchronous folding mechanism and are matched with the damping mechanism and the first back glue plate to lock the folding of the terminal shell.

As a preferred technical scheme of the invention, the synchronous folding mechanism comprises two groups of shafts I, two groups of shafts II, two groups of shafts III and two groups of shafts IV which form eight rotating shafts, each group of shafts I, shaft II, shaft III and shaft IV are symmetrically arranged and are respectively arranged opposite to the positions of eight externally-covered steel bars, two ends of each shaft I, shaft II, shaft III and shaft IV are sleeved with gear buckles which are mutually meshed and realize synchronous rotation, the eight rotating shafts are connected in a chained mode through a linking buckle sleeved in the middle of each shaft, a left fixing buckle and a right fixing buckle are respectively sleeved between the linking buckles on the two shafts I in a staggered mode, two left gear fixing buckles which are meshed and connected with two corresponding gear buckles on the shaft I are arranged on two sides of each left fixing buckle, two right gear fixing buckles which are meshed and connected with two corresponding gear buckles on the shaft I are arranged on two sides of each right fixing buckle, and the gear buckles are mutually meshed with the left gear fixing buckles and the right gear buckles, so that a synchronous gear buckle group which ensures smooth rotation of the hinge is formed.

As a preferable technical scheme of the invention, support columns for connecting devices are sleeved between the rotating shafts which are opposite in position in a plurality of adjacent synchronous folding mechanisms, wherein the rotating shafts of the two synchronous folding mechanisms positioned at the two ends of the outer wrapping steel bar are sleeved with the connecting shafts at the ends of the outer wrapping steel bar through the sleeved support columns.

As a preferable technical scheme of the invention, the damping mechanism is provided with four damping mechanisms, the damping mechanism comprises a fixed seat which is clamped and fixed with a corresponding gear fixing buckle and a corresponding fixing buckle, one side of the fixed seat is provided with a guide bulge, the guide bulge is in sliding connection with a guide chute arranged on the surface of the sliding block, the guide bulge is in sliding fit with the guide chute to form the guide mechanism, two pressure springs positioned on two sides of the guide mechanism are arranged between the fixed seat and the sliding block, and two ends of the pressure springs are respectively sleeved with positioning pins arranged on the sides of the fixed seat and the sliding block.

As a preferred technical scheme of the invention, one end of a left gear fixing buckle and one end of a left gear fixing buckle of two synchronous folding mechanisms positioned at the end of a hinge are connected with a fixing seat fixedly arranged on a left gum bottom plate in a clamping manner, the right gear fixing buckle and the right fixing buckle of the two synchronous folding mechanisms are connected with the fixing seat fixedly arranged on a right gum bottom plate in a clamping manner, one end of the left gear fixing buckle and one end of the left fixing buckle of the left two synchronous folding mechanisms are connected with a fixing plate fixedly arranged on the left gum bottom plate in a clamping manner, the right gear fixing buckle and the right fixing buckle of the two synchronous folding mechanisms are connected with a fixing plate fixedly arranged on the right gum bottom plate in a clamping manner, one side of a left finger rail is connected with one end of the left gear fixing buckle and one end of the left fixing buckle in a clamping manner, one side of the right finger rail is connected with one end of the right gear fixing buckle and the fixing plate in a clamping manner, the tooth mouth on the other side of the left finger rail is connected with the tooth mouth on the other side of the left finger rail in a clamping manner, the tooth mouth is correspondingly arranged on the two sides of a first gum plate, and the bottom of the first gum rail is further provided with a steel bar and the second finger is arranged between the first back and the second finger folding mechanism is further arranged on the back and the second finger folding mechanism.

As a preferable technical scheme of the invention, in the rotation process of the hinge mechanism, the sliding displacement generated by the left finger rail, the right finger rail and the first back glue plate is equal to the sliding displacement generated by the guide bulge in the guide chute.

A mobile terminal comprises any one of the 360-degree hinges, and further comprises a first shell and a second shell which are respectively positioned on two sides of the hinge mechanism and form a terminal shell, wherein the back parts of the first shell and the second shell are respectively and fixedly provided with a first backboard and a second backboard, and the first backboard and the second backboard are fixedly connected with corresponding sliding blocks forming the connecting ends of the guide mechanism.

As a preferable technical scheme of the invention, the top parts of the first backboard and the second backboard are provided with a first supporting plate and a second supporting plate which are arranged in a flush way and used for supporting and installing the flexible screen, and the first supporting plate and the second supporting plate are respectively fixedly connected with the first shell and the second shell.

Compared with the prior art, the invention has the beneficial effects that:

1) The synchronous folding mechanism is formed by the plurality of same structures, the structure of the internal action mechanism of the hinge is simplified, the complexity of the hinge is simplified, the synchronous tooth buckle groups meshed with each other in the hinge are matched with the link buckles, so that the plurality of rotating shafts drive the outer wrapping steel bars to synchronously rotate, meanwhile, smooth and stable support in the 0-360-degree rotation process is realized for the flexible screen by matching the back glue plate and the finger track, the stability of the hinge mechanism is improved, the synchronous tooth buckle groups formed by meshing the gear fixed buckle gear buckles can be improved, the smoothness in the rotation process of the hinge can be improved, better mechanical feedback sense is provided, the quality sense of the hinge and the mobile terminal is improved, the rotating stroke input by the hinge is shortened to 1/2 of the output rotating stroke under the action of the synchronous tooth buckle groups, the actual input rotating stroke is equivalently shortened, and the user experience of the hinge is improved;

2) Through the gum bottom plate that sets up for the hinge is in 0-360 and 360-0 rotatory in-process, the hinge is to the support of screen remain constant length all the time, and through the slider direction slip of damping mechanism, realize the sliding distance compensation of finger guide rail tooth mouth and first gum plate tooth mouth, avoid finger guide rail and first gum plate to cause the damage to the flexible screen, the elasticity of pressure spring produces reverse damping in the rotation of hinge in damping mechanism, and the terminal left and right sides produces equal damping, experience effect is better, and the existence of this damping effect, make the hinge possess certain locking effect;

3) The hinge is reasonable in structure and wide in applicable scene, when the screen is turned over to be in a 0-degree state, the screen can be bent to the back of the terminal, the screen is prevented from being scratched, when the screen is turned over to be in a 180-degree state, the unfolded flexible screen can obtain 2 times of large screen experience, when the screen is turned over to be in a 360-degree state, portable mobile display experience can be obtained, and the R-angle display area of the flexible screen can give people the experience of a waterfall screen.

4) This kind of 360 folding hinge, because simple structure, manufacturing cost is lower, and life is longer simultaneously, and the adaptation that then can be better multiple mobile terminal (cell-phone, notebook computer and panel computer etc.) or have other terminals of folding demonstration demand, the suitability is better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is one of the inner side structural schematic views of the present invention;

FIG. 3 is a second schematic view of the inner side structure of the present invention;

FIG. 4 is a schematic view of a hinge mechanism according to the present invention;

FIG. 5 is a schematic view of a hinge mechanism of the present invention;

FIG. 6 is a schematic folding view of the hinge mechanism of the present invention;

FIG. 7 is a schematic diagram illustrating the disassembly of the synchronous folding mechanism of the present invention;

FIG. 8 is a schematic diagram illustrating the damping mechanism of the present invention;

FIG. 9 is a schematic view of the present invention at a 180 fold;

FIG. 10 is a schematic view of the present invention at a 0 fold;

fig. 11 is a schematic view of the present invention in a 360 fold.

1, A hinge mechanism; 11, an outer steel bar, 12, a support column, 13, a left back glue bottom plate, 14, a right back glue bottom plate, 15, a left finger rail, 16, a right finger rail, 17, a first back glue plate, 18, a second back glue plate, 19, a fixing plate, 1a, a synchronous folding mechanism, 1a1, a first shaft, 1a2, a second shaft, 1a3, a third shaft, 1a4, a fourth shaft, 1a5, a linking buckle, 1a6, a gear buckle, 1a7, a left gear fixing buckle, 1a8, a left fixing buckle, 1a9, a right gear fixing buckle, 1a10, a right fixing buckle, 1b, a damping mechanism, 1b1, a fixing seat, 1b11, a guide protrusion, 1b2, a sliding block, 1b21, a guide chute, 1b3, a pressure spring, 2, a first shell, 21, a first back plate, 22, a first support plate, 3, a second shell, 31, a second back plate, 32 and a second support plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-11, the invention provides a 360 ° hinge, which comprises a hinge mechanism 1, wherein the hinge mechanism 1 comprises eight horizontally arranged outer steel bars 11, four synchronous folding mechanisms 1a for realizing smooth synchronous rotation of 0-360 ° of a terminal shell and constant length support of a flexible screen by matching with a first back glue plate 17 are arranged on the inner sides of the eight outer steel bars 11, and a synchronous tooth buckle group for rotating and matching a plurality of rotating shafts of the synchronous folding mechanisms 1a is arranged in the synchronous folding mechanisms 1a, so that mechanical feedback is provided when the hinge rotates smoothly, and synchronous rotation of a corresponding damping mechanism 1b is driven;

the damping mechanism 1b is provided with a guide mechanism for compensating the folding distance of the back adhesive bottom plate of the hinge mechanism 1 and providing the hinge rotation damping function when the hinge rotates, and the guide mechanism is provided with a connecting end for connecting the terminal shell;

the hinge mechanism 1 further comprises a left finger rail 15 and a right finger rail 16 which are positioned on two sides of the top of the synchronous folding mechanism 1a and are matched with the damping mechanism 1b and the first back glue plate 17 to lock the folding of the terminal shell.

In the embodiment, the synchronous folding mechanism 1a comprises two groups of shafts 1a1, two groups of shafts 1a2, two groups of shafts three 1a3 and two groups of shafts four 1a4 which form eight rotating shafts, each group of shafts 1a1, shafts 2, shafts three 1a3 and shafts four 1a4 are symmetrically arranged and are respectively opposite to the eight outer wrapping steel bars 11, two ends of each shaft 1a1, shaft 2, shaft three 1a3 and shaft four 1a4 are sleeved with a gear buckle 1a6 which is meshed with each other and realizes synchronous rotation, and the eight rotating shafts are connected in a chain manner through a link buckle 1a5 sleeved at the middle part of each shaft, the left fixing buckles 1a8 and the right fixing buckles 1a10 are respectively sleeved between the connecting buckles 1a5 on the two shafts 1a1 in a staggered manner, two left gear fixing buckles 1a7 which are in meshed connection with the two gear buckles 1a6 on the corresponding shaft 1a1 are arranged on two sides of the left fixing buckles 1a8, two right gear fixing buckles 1a9 which are in meshed connection with the two gear buckles 1a6 on the corresponding shaft 1a1 are arranged on two sides of the right fixing buckles 1a10, and the gear buckles 1a6 are meshed with the left gear fixing buckles 1a7 and the right gear fixing buckles 1a9 to form a synchronous gear buckle group which ensures smooth rotation of the hinge.

Specifically, when the mobile terminal is folded at 0-360 degrees, the first shell 2 is pulled clockwise, the second shell 3 is pulled anticlockwise, acting force is exerted on the left gear fixing buckle 1a7 and the left fixing buckle 1a8, the same left gear fixing buckle 1a7 and the left fixing buckle 1a8 can drive the shaft 1a1 to rotate, and the shaft 1a1, the shaft 2, the shaft three 1a3 and the shaft four 1a4 are connected through the gear buckle 1a6 and the link buckle 1a5, so that the rotation stroke input by a hinge is shortened to 1/2 of the output rotation stroke under the action of the synchronous gear buckle group, at the moment, the right gear fixing buckle 1a9 and the right fixing buckle 1a10 synchronously rotate anticlockwise along with the rotation, and then the synchronous rotation of the terminal shell is realized under the action of the synchronous folding mechanism 1 a;

When the mobile terminal is folded at 360-0 degrees, the synchronous rotation of the terminal shell is also realized under the action of the synchronous folding mechanism 1a by pulling the first shell 2 anticlockwise and pulling the second shell 3 clockwise.

Further, support columns 12 for connection between devices are sleeved between the rotating shafts of the plurality of adjacent synchronous folding mechanisms 1a, wherein the two synchronous folding mechanisms 1a positioned at two ends of the outer wrapping steel bar 11 are sleeved with the connecting shafts at the ends of the outer wrapping steel bar 11 through the sleeved support columns 12, so that the rotating shafts of the plurality of synchronous folding mechanisms 1a can synchronously rotate when rotating, and simultaneously drive the corresponding outer wrapping steel bar 11 to synchronously rotate around respective axes.

In this embodiment, the damping mechanism 1b is provided with four, the damping mechanism 1b includes a fixing seat 1b1 that is fastened and fixed with a corresponding gear fixing buckle and a corresponding fixing buckle, one side of the fixing seat 1b1 is provided with a guiding protrusion 1b11, the guiding protrusion 1b11 is slidably connected with a guiding chute 1b21 provided on the surface of the sliding block 1b2, the guiding protrusion 1b11 is slidably matched with the guiding chute 1b21 to form a guiding mechanism, two compression springs 1b3 located at two sides of the guiding mechanism are further provided between the fixing seat 1b1 and the sliding block 1b2, and two ends of the compression springs 1b3 are respectively sleeved with positioning pins provided on the sides of the fixing seat 1b1 and the sliding block 1b 2.

Specifically, when the mobile terminal rotates for 0-360 degrees and 360-0 degrees, in order to ensure that the flexible screen is always supported by a constant length in the rotation process, the sliding blocks 1b2 positioned in the first shell 2 and the second shell 3 slide on the fixed seats 1b1 in the respective shells, and the distance compensation is performed on the rotation of the back adhesive bottom plate, meanwhile, the tooth openings of the left finger rail 15 and the right finger rail 16 and the tooth opening of the first back adhesive plate 17 can slide in a matched manner, and the sliding between the tooth openings can absorb delta L generated by the hinge under the constraint of the constant length. The mathematical principle of this process is shown in fig. 9, 10 and 11, wherein when the hinge is at an angle of 0 ° (fig. 10), l=2l1+l2-2Δl, Δl=b-A, and when the hinge is at an angle of 360 ° (fig. 11), l=2l1+l2+2Δl, Δl=A-C;

In the process of hinge rotation, the sliding block 1b2 slides on the fixed seat 1b1 to generate displacement difference, and the deltaL transmitted by finger track sliding is compensated under the constraint of constant length of the hinge. The elastic force of the compression spring 1b3 generates reverse damping in the rotation of the hinge, and the existence of the damping enables the hinge to have a certain locking effect and simultaneously locks the sliding block 1b 2.

In this embodiment, one end of the left gear fixing buckle 1a7 and one end of the left fixing buckle 1a8 of the two synchronous folding mechanisms 1a located at the hinge end are connected with the fixing seat 1b1 fixedly installed on the left back glue bottom plate 13 in a clamping manner, the right gear fixing buckle 1a9 and the right fixing buckle 1a10 of the two synchronous folding mechanisms 1a are connected with the fixing seat 1b1 fixedly installed on the right back glue bottom plate 14 in a clamping manner, one end of the left gear fixing buckle 1a7 and one end of the left fixing buckle 1a8 of the remaining two synchronous folding mechanisms 1a are connected with the fixing plate 19 fixedly installed on the left back glue bottom plate 13 in a clamping manner, the right gear fixing buckle 1a9 and the right fixing buckle 1a10 of the two synchronous folding mechanisms 1a are connected with the fixing plate 19 fixedly installed on the right back glue bottom plate 14 in a clamping manner, one side of the left finger rail 15 is connected with one end of the left gear fixing buckle 1a7 and one end of the left fixing buckle 1a8 and the corresponding fixing plate 19 in a clamping manner, one side of the right finger rail 16 is connected with one side of the right gear fixing buckle 1a9 and one side of the other side of the corresponding fixing plate 19, one side of the finger rail 16 is further meshed with the two finger rails 17 and the other side of the finger joint 17 is arranged between the two finger joints 17 and the corresponding finger joint opening of the first finger joint plate 17 and the finger joint opening is arranged between the two finger joint plates 17 and the corresponding finger joint opening of the two finger joint plates 1 and the first finger joint plate 17 and the two finger joint opening is arranged.

Specifically, when the mobile terminal rotates by 0-360 degrees and 360-0 degrees, the rotating gear fixing buckle and the rotating gear fixing buckle can drive the fixing seat 1b1 and the fixing plate 19 to synchronously rotate, and the left back glue bottom plate 13 and the right back glue bottom plate 14 slide on the back plate under the driving action of the fixing seat 1b1, so that the distance compensation is performed on the rotation of the finger rail and the back glue plate.

Further, in the rotation process of the hinge mechanism 1, the sliding displacement generated by the left finger rail 15 and the right finger rail 16 and the first back glue plate 17 is equal to the sliding displacement generated by the guide protrusion 1b11 in the guide chute 1b21, so that the stable smooth support of the flexible screen is ensured when the mobile terminal rotates within the range of 0-360 degrees.

The mobile terminal comprises any one of the 360-degree hinges, and further comprises a first shell 2 and a second shell 3 which are respectively positioned on two sides of the hinge mechanism 1 and form a terminal shell, wherein the back parts of the first shell 2 and the second shell 3 are respectively fixedly provided with a first backboard 21 and a second backboard 31, the first backboard 21 and the second backboard 31 are fixedly connected with a corresponding sliding block 1b2 forming a connecting end of the guide mechanism, so that the 360-degree hinge can be adapted to a better mobile terminal.

Further, the top of the first backboard 21 and the second backboard 31 is provided with a first supporting plate 22 and a second supporting plate 32 which are arranged flush with the first back adhesive plate 17 and used for supporting and installing the flexible screen, the first supporting plate 22 and the second supporting plate 32 are respectively fixedly connected with the first shell 2 and the second shell 3, and the flexible screen can be stably supported and installed by utilizing the first backboard 21 and the second backboard 31 to be matched with the first back adhesive plate 17.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, connected internally of two elements or the interaction relationship of two elements, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances unless explicitly defined otherwise.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.