WO2020259646A1 - 一种转轴机构及可折叠移动终端 - Google Patents

一种转轴机构及可折叠移动终端 Download PDF

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Publication number
WO2020259646A1
WO2020259646A1 PCT/CN2020/098340 CN2020098340W WO2020259646A1 WO 2020259646 A1 WO2020259646 A1 WO 2020259646A1 CN 2020098340 W CN2020098340 W CN 2020098340W WO 2020259646 A1 WO2020259646 A1 WO 2020259646A1
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WO
WIPO (PCT)
Prior art keywords
swing arm
arm
synchronization
assembly
main shaft
Prior art date
Application number
PCT/CN2020/098340
Other languages
English (en)
French (fr)
Inventor
长井贤次
小荒田新一
邹亚科
甲斐知明
Original Assignee
华为技术有限公司
思拓富天线公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司, 思拓富天线公司 filed Critical 华为技术有限公司
Priority to KR1020217039285A priority Critical patent/KR102611811B1/ko
Priority to JP2021573772A priority patent/JP7365570B2/ja
Priority to EP20831549.9A priority patent/EP3955555B1/en
Publication of WO2020259646A1 publication Critical patent/WO2020259646A1/zh
Priority to US17/561,403 priority patent/US20220116489A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • This application relates to the field of terminal technology, and in particular to a hinge mechanism and a foldable mobile terminal.
  • Foldable flexible screen mobile phones are an important evolution direction for future mobile phone differentiation. Since the display screen of the foldable flexible screen mobile phone has the characteristics of flexible switching of the display mode according to different usage scenarios, it will surely become the main direction of the next generation mobile phone development of mainstream equipment manufacturers. In the future, foldable flexible screen mobile phones will surely become a major selling point of terminal products.
  • the flexible screen and the folding hinge are the key to the technology of the foldable flexible screen mobile phone.
  • the flexible screen is a relatively fragile component. If the pressure or tension on the flexible screen is uneven during the folding process, it is likely to cause deformation and damage. At this time, it is not only necessary that the folding shaft can complete a 180° rotation in the ultra-thin accommodation space, but also to match the characteristics of the flexible screen to make the force of the flexible screen uniform.
  • the embodiments of the present application provide a hinge mechanism and a foldable mobile terminal, so that the force of the flexible screen is uniform and the service life of the flexible screen is extended.
  • a hinge mechanism which can be applied to a foldable mobile terminal and is used as a folding mechanism of the mobile terminal, wherein the hinge mechanism is fixedly connected to two housings of the mobile terminal, When the terminal is folded, the two shells can rotate around the rotating shaft mechanism to achieve folding.
  • the rotating shaft mechanism mainly includes three parts: a main shaft assembly, a swing arm assembly, and a synchronization assembly; among them, the main shaft assembly functions as a rotating shaft; the swing arm assembly includes at least one swing arm group, wherein each swing arm group includes a corresponding set on the main shaft The swing arms on both sides of the assembly are rotatably connected with the spindle assembly.
  • the swing arms on both sides of the spindle assembly rotate on different axes and are parallel to the extension direction of the spindle assembly;
  • the synchronization assembly is arranged corresponding to the swing arm assembly, It includes synchronization arms respectively arranged on both sides of the main shaft assembly, and the two synchronization arms are connected by gears; each synchronization arm is slidably connected with the swing arm on the same side and can rotate with the swing arm on the corresponding side. Because the synchronization arms on both sides of the main shaft assembly are connected with gears, the rotation of the synchronization arm on one side will drive the synchronization arm on the other side to rotate at the same time; and because the synchronization arm on the same side is slidingly connected with the swing arm.
  • the swing arm and the synchronization arm are arranged in a one-to-one correspondence, or the two ends of the swing arm are each provided with one synchronization arm;
  • the synchronous arm is provided with a strip hole, and the extending direction of the strip hole is the same as that of the synchronous arm.
  • the swing arm is provided with a sliding part that can slide along the strip hole.
  • the sliding part when the sliding part is specifically arranged, it may be a fixed connecting rod arranged on the swing arm. In this way, when the swing arm rotates, the sliding part slides along the strip hole, and at the same time drives the synchronous arm on the same side to rotate.
  • an elastic component is further provided between the swing arm and the synchronization arm to form an opening and closing torsion force between the two.
  • the synchronization arm is provided with a plurality of limiting grooves facing the side wall of the swing arm; the elastic component is arranged between the swing arm and the synchronization arm on the same side, and includes two abutting parts, namely the ball and the elastic structural member, Wherein, one end of the elastic structural member is in contact with the swing arm, and the other end is in contact with the ball.
  • the ball can roll along the side wall of the synchronous arm close to the swing arm.
  • the ball can roll along the sidewall of the synchronization arm under the action of elastic force and synchronize with Friction is generated between the side walls of the arms, so that a damping force is formed between the swing arm and the synchronization arm, which is beneficial to improve the user experience.
  • the side wall of the synchronous arm close to the swing arm has a plurality of limit grooves, the ball will fall into the limit groove under the action of the elastic structure during the rolling process, so that the hovering experience can be realized.
  • the swing arm When the swing arm is specifically connected with the elastic component, the swing arm can be provided with an accommodation groove for accommodating the elastic structure member, so that the elastic structure member can be accommodated in the accommodation groove and resist the groove bottom of the accommodation groove Pick up.
  • the elastic structural member can be, but not limited to, a spring.
  • a limit pillar can be provided in the accommodating groove , So that the spring is sleeved on the limit pillar.
  • the springs are multiple springs arranged side by side, the end of the multiple springs close to the synchronization arm is connected by a U-shaped connector. At this time, the ball is connected to the U-shaped The end surfaces of the connecting piece abut against and move along the end surface of the U-shaped connecting piece, so that the friction between the elastic structure and the ball can be reduced, and the ball can move more flexibly.
  • the spindle assembly is provided with a swing arm installation groove, the groove wall of the swing arm installation groove is provided with a protrusion, and the protrusion has an arc supporting surface; the end where the swing arm is connected to the spindle assembly A supporting shaft is provided, and the supporting shaft is in contact with the circular arc supporting surface and can rotate along the circular arc supporting surface.
  • the pivotal connection between the swing arm and the main shaft assembly is realized.
  • the swing arm can also be connected to the main shaft assembly by means of articulation or pivot mounting.
  • the rotating shaft mechanism further includes baffles respectively arranged on both sides of the main shaft assembly, and at the same time, a V-shaped hole is opened in the synchronization arm;
  • the board includes a board body and a connecting part connected to the board body.
  • the extension direction of the board body is parallel to the extension direction of the spindle assembly, and the extension direction of the connecting part is perpendicular to the extension direction of the board body; the end of the connecting part away from the board body is rotated
  • the pin is connected to the swing arm in rotation, and the end of the connecting part close to the plate is connected to the swing arm through the drive pin; the swing arm rotates to move the drive pin along the V-shaped hole to drive the connecting part to rotate around the rotating pin, so that the plate
  • the body is raised or lowered accordingly, so that the main shaft assembly and the plates on both sides can form an accommodation space for accommodating the flexible screen during the folding process of the foldable mobile terminal, and the surface of the accommodation space is relatively flat and can be reduced. Damage to the flexible screen.
  • a foldable mobile terminal in a second aspect, includes any one of the possible hinge mechanisms in the first aspect, two housings, and a flexible screen fixed to the two housings, wherein two The shells are separately arranged on both sides of the rotating shaft mechanism, and each shell is fixedly connected with the swing arm on the same side.
  • the housing on one side rotates to drive the swing arm to rotate around the main shaft assembly
  • the synchronous arm on the same side rotates accordingly, which will drive the synchronous arm and swing arm on the other side to rotate, thereby achieving foldability
  • the synchronous movement of the casings on both sides of the mobile terminal makes the two sides of the flexible screen move synchronously, and the force of the flexible screen is relatively uniform.
  • the swing arms on both sides of the main shaft assembly rotate around different axes, such a design can form an accommodating space that can accommodate the flexible screen during the rotation, which can reduce the probability of damage to the flexible screen.
  • a bracket can be set between the shell and the swing arm, and the bracket can be fixed on the swing arm, and then the shell and the bracket are fixed, so as to realize the connection between the shell and the swing arm. connection.
  • the mobile terminal further includes an appearance protector, which is arranged on the folded outer side of the mobile terminal and fixed to the brackets on both sides of the main shaft assembly through an elastic mechanism.
  • the appearance protector and the two shells are attached to the hinge mechanism, so as to protect the hinge mechanism and make the appearance of the foldable mobile terminal simple and beautiful.
  • FIG. 1 is a schematic diagram of an exploded structure of a foldable mobile terminal provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of a foldable mobile terminal provided by an embodiment of the application when the unfolding angle is 180°;
  • FIG. 3 is a schematic structural diagram of a foldable mobile terminal provided by an embodiment of the application when the unfolding angle is 90°;
  • FIG. 4 is a schematic structural diagram of a foldable mobile terminal provided by another embodiment of the application when the unfolding angle is 90°;
  • FIG. 5 is a schematic diagram of a state when the foldable mobile terminal provided by an embodiment of the application is folded
  • FIG. 6 is a schematic diagram of an exploded structure of a shaft mechanism provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of the state when the hinge mechanism provided by the embodiment of the application is folded.
  • FIG. 8 is a schematic diagram of an exploded structure of the connection between the swing arm and the spindle assembly provided by an embodiment of the application;
  • FIG. 9 is a schematic structural diagram of the connection between the swing arm and the spindle assembly provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of the connection between the synchronization arm and the main shaft assembly according to an embodiment of the application.
  • FIG. 11 is a schematic diagram of the structure of the elastic component, the swing arm and the synchronization arm provided by an embodiment of the application;
  • FIG. 12 is a schematic diagram of a partial structure of the elastic assembly and the synchronization arm provided by an embodiment of the application;
  • Figure 13 is a side view of the shaft mechanism in a folded state provided by an embodiment of the application.
  • 15 is a schematic diagram of an exploded structure of a shaft mechanism provided by another embodiment of the application.
  • the hinge mechanism can be applied to mobile terminals, especially mobile terminals with foldable screens, such as mobile phones and PDAs (Personal Digital Assistant, handheld computers). , Laptop or tablet, etc.
  • the mobile terminals applied in the embodiments of the present application all include the structure shown in FIG. 1: a left housing 20, a rotating shaft mechanism 10, a right housing 30 and a flexible screen 40. When the mobile terminal is in use, it can be folded and unfolded according to different usage scenarios.
  • Figure 2 shows the state when the left and right housings of the mobile terminal are at an angle of 180°
  • Figures 3 and 4 show when the left housing 20 and the right housing 30 of the mobile terminal are folded at an angle of 90°
  • FIG. 5 shows the state when the left housing 20 and the right housing 30 of the mobile terminal are folded to an angle of 0°.
  • the unfolding and folding process of the mobile terminal is the left housing 20 and the right housing 30 around the rotating shaft mechanism 10 The process of turning.
  • the rotating shaft mechanism 10 mainly includes a spindle assembly 11, a swing arm assembly and a synchronization assembly.
  • the main shaft assembly 11 is a support, which at the same time functions as a shaft;
  • the swing arm assembly is rotatably connected with the main shaft assembly 11, and the swing arm assembly is connected with the housing of the foldable mobile terminal, which can be used as the active shaft of the shaft mechanism 10.
  • the rotating part drives the synchronization assembly to rotate.
  • the spindle assembly 11 can adopt different structures.
  • the overall structure of the spindle assembly 11 provided by the embodiment of the present application may be a semi-cylindrical shape.
  • the shape of the above-mentioned spindle assembly 11 is only a specific example, and the spindle assembly 11 provided in the embodiment of the present application may also adopt other structural forms.
  • the extension direction of the spindle assembly 11 is defined. As shown in FIG. 6, the extension direction of the spindle assembly 11 refers to the axis around which the left housing 20 and the right housing 30 in FIG. 1 rotate. Direction.
  • the spindle assembly 11 when the spindle assembly 11 supports the swing arm assembly, the spindle assembly 11 is provided with a structure corresponding to the swing arm assembly. To facilitate the understanding of the internal structure of the spindle assembly 11, the structure of the spindle assembly 11 will be described below in conjunction with the swing arm assembly.
  • the swing arm assembly when the swing arm assembly is specifically set, the swing arm assembly includes a swing arm group, which is used to connect the left housing 20 and the right housing 30.
  • the number of swing arm groups can be determined according to needs, such as one for each end of the spindle assembly 11, or two at each end of the spindle assembly 11 as shown in 6 and FIG. 7, or More can be set according to specific needs.
  • each swing arm group includes swing arms correspondingly arranged on both sides of the main shaft assembly 11.
  • the two swing arms are respectively named the left swing arm 12a and the right swing arm.
  • the arms 12b wherein the left swing arm 12a and the right swing arm 12b are respectively used for fixed connection with the left housing 20 and the right housing 30 of the mobile terminal shown in FIG. 1. 1 and 6 together, the left swing arm 12a is fixedly connected to the left housing 20, and the right swing arm 12b is fixedly connected to the right housing 30.
  • the fixed connection is implemented, but not limited to bolts or screws, etc.
  • the firmware is fixedly connected; at this time, the left swing arm 12a and the right swing arm 12b move synchronously with the left housing 20 and the right housing 30, respectively.
  • the left swing arm 12a and the right swing arm 12b are specifically arranged, the left swing arm 12a and the right swing arm 12b are arranged on both sides of the main shaft assembly 11. More specifically: the left swing arm 12a and the right swing arm 12b can be arranged along the main shaft assembly
  • the extension direction of 11 is listed on its two sides.
  • the left swing arm 12a and the right swing arm 12b the connection with the main shaft assembly 11, the housing and other possible structures is the same. Therefore, the following The left swing arm 12a will be described as an example.
  • the left swing arm 12 a and the spindle assembly 11 are rotationally connected. And the axis around which the left swing arm 12a rotates is different from the axis around which the right swing arm 12b rotates, but the axis around which the left swing arm 12a rotates and the axis around which the corresponding right swing arm 12b rotates are parallel to the spindle assembly. 11, so that the left swing arm 12a and the right swing arm 12b form a drop-shaped accommodating space 22 (refer to Fig. 13) that can accommodate the flexible screen 40 shown in FIG. 1 during the rotation.
  • the main shaft assembly 11 is provided with a swing arm installation groove 111, the wall of the swing arm installation groove 111 is provided with a protrusion 111a, and the protrusion 111a has an arc supporting surface 112a; the left swing arm 12a is provided at one end connected to the main shaft assembly 11 There is a supporting shaft 121 which is in contact with the circular arc supporting surface 112a and can rotate along the circular arc supporting surface 112a. In this way, the rotation connection between the left swing arm 12a and the main shaft assembly 11 is realized. It should be understood that the arrangement of the connection structure between the left swing arm 12a and the main shaft assembly 11 is only an example, and the connection between the swing arm assembly and the main shaft assembly 11 can also be achieved by means such as articulation.
  • the connection between the right swing arm 12b and the main shaft assembly 11 is the same as that of the left swing arm 12a, so it will not be described in detail here.
  • the swing arm mounting grooves 111 on the spindle assembly 11 corresponding to the two swing arms can be arranged oppositely, or as shown in FIG. Wrong setting, as long as the left swing arm 12a and the right swing arm 12b can be rotated around different axes respectively.
  • the synchronization assembly and the swing arm assembly can be arranged correspondingly, and the synchronization assembly includes synchronization arms respectively provided on both sides of the main shaft assembly 11.
  • the corresponding setting here can be that one swing arm group is provided with a set of synchronization arms, or it can mean that a swing arm group is provided with two sets of synchronization arms, and the two sets of synchronization arms are respectively set on the swing arm along the extension direction of the main shaft assembly.
  • Two ends, and the two sets of synchronous arms set at both ends of the swing arm can be the same or different.
  • one set of synchronous arms as shown in Figure 10 is set at one end of the swing arm, and one set is set at the other end
  • two synchronous arms are connected with gears; each synchronous arm is slidably connected with the swing arm on the same side, and can rotate with the swing arm on the corresponding side.
  • the synchronization arm provided on the same side as the left swing arm 12a is referred to as the left synchronization arm 13a
  • the synchronization arm provided on the same side as the right swing arm 12b is referred to as the right synchronization arm 13b.
  • the connection with the main shaft assembly 11, the swing arm on the same side and other possible structures is the same. Therefore, the following only takes the left synchronization arm 13a as an example. Description.
  • the axis of rotation of the left synchronization arm 13a around the main shaft assembly 11 can be set as required.
  • the axis around which the left synchronization arm 13a rotates and the axis around which the left swing arm 12a rotates coincide, which can help simplify the structure of the rotating mechanism 10 shown in FIG.
  • the axis around which the left synchronization arm 13a rotates can also be arranged in other ways, as long as it can effectively avoid the flexible screen 40 shown in FIG. 1 so that the flexible screen 40 can be accommodated in the left swing
  • the accommodating space 22 (refer to FIG. 13) formed by the rotation of the arm 12a and the right swing arm 12b can accommodate the flexible screen.
  • the connection between the right synchronization arm 13b and the main shaft assembly 11 is the same as that of the left synchronization arm 12a, so it will not be described in detail here. Since the synchronous arm is slidably connected with the swing arm on the same side, and the synchronous arm can rotate with the swing arm, it can be understood that when the synchronous arm rotates, the swing arm can also rotate with the synchronous arm.
  • the left swing arm 12a as the active rotating part as an example, when the left swing arm 12a rotates relative to the main shaft assembly 11, the left synchronization arm 13a rotates accordingly, and the left synchronization arm 13a and the right synchronization arm 13b are connected by gears, so The rotation of the left synchronization arm 13a will drive the rotation of the right synchronization arm 13b and the right swing arm 12b.
  • the left housing 20 and the right housing 30 of the foldable mobile terminal including the shaft mechanism 10 can be moved synchronously, so that The two sides of the flexible screen 40 move synchronously, and the force of the flexible screen 40 is relatively uniform.
  • the left synchronization arm 13a may be provided with a strip hole 131, and the extension direction of the strip hole 131 is the same as that of the left synchronization arm 13a.
  • the left swing arm 12a is provided with a sliding portion 122 that can slide along the strip hole 131.
  • the sliding portion 122 when the sliding portion 122 is specifically arranged, it can be, but is not limited to, a fixed connecting rod arranged on the left swing arm 12a.
  • connection mode of the left swing arm 12a and the left sync arm 13a is the same as the connection mode of the right swing arm 12b and the right sync arm 13b, in the following embodiments, the left swing arm 12a and the left sync arm 13a are taken as examples.
  • the connection method is explained. 11, when the left swing arm 12a and the left synchronization arm 13a are specifically connected, an elastic component is also provided between the left swing arm 12a and the left synchronization arm 13a. At this time, the left synchronization arm 13a faces the left swing arm 12a.
  • the side wall is provided with a plurality of limiting grooves (not shown in the figure);
  • the elastic assembly is arranged between the left swing arm 12a and the left synchronization arm 13a, and includes abutting balls 141 and an elastic structure 142, wherein the elastic structure One end of the piece 142 abuts the left swing arm 12a, and the other end abuts the ball 141, which can roll along the side wall of the left synchronization arm 13a close to the left swing arm 12a.
  • the left swing arm 12a rotates around the main shaft assembly 11, and the left synchronization arm 13a rotates accordingly.
  • the ball 141 can be moved by the elastic force of the elastic structure 142.
  • the left swing arm 12a when the left swing arm 12a is specifically connected with the elastic component, referring to FIGS. 8 and 9 together, the left swing arm 12a can be provided with an accommodation groove 123 for accommodating the elastic structure 142. In this way, the elastic structure The member 142 can be accommodated in the accommodating groove 123 and abut against the groove bottom of the accommodating 123.
  • the elastic structural member 142 can be, but not limited to, a spring.
  • the elastic structural member 142 is a spring, in order to limit the position of the spring so as not to bend during movement, A limit post (not shown in the figure) is arranged in the accommodating groove, so that the spring is sleeved on the limit post.
  • a limit post (not shown in the figure) is arranged in the accommodating groove, so that the spring is sleeved on the limit post.
  • the end of the multiple springs close to the left synchronization arm 13a is connected by a U-shaped connector 143
  • the ball 141 abuts against the end surface of the U-shaped connecting piece 143, and moves along the end surface of the U-shaped connecting piece 143, so that the friction between the elastic structure 142 and the ball 141 can be reduced, and the ball 141 can move More flexible.
  • FIGS. 2 to 5 In order to better explain the folding process of the foldable mobile terminal including the swing arm assembly, you can refer to FIGS. 2 to 5 at the same time.
  • FIG. 2 between the left housing 20 and the right housing 30 of the mobile terminal The included angle is 180°, referring to Fig. 11, at this time, the ball 141 falls in the corresponding limit groove.
  • the corresponding rotation position of the left swing arm 12a can be achieved by dropping the ball 141 into the corresponding limit grooves. Hovering, for example, referring to FIGS. 3, 4, and 11 together, the angle between the left housing 20 and the right housing 30 of the mobile terminal can be maintained at 90° through reasonable settings. 11, in the embodiment of the present application, when the ball 141 moves between two adjacent limit grooves, it will generate a constant friction force between the ball 141 and the left synchronization arm 13a, so as to achieve There is constant damping between the left swing arm 12a and the left synchronization arm 13a, which can make the hand feel constant.
  • the ball 141 enters the limit groove corresponding to 0° under the action of the elastic structural member 142 to realize the automatic closing of the mobile terminal; referring to Figures 10 and 11, when the user unfolds the mobile terminal, only need to manually make the two shells With a relatively large included angle (for example, 150°) between the bodies, the ball 141 can enter the limit groove corresponding to 180° under the action of the elastic structure 142 to realize the automatic deployment of the mobile terminal. It can be seen that the use of the hinge mechanism 10 as shown in FIG. 6 can realize the self-opening and closing of the foldable mobile terminal, thereby improving the user experience.
  • the rotating shaft mechanism 10 further includes left baffle plates 15a and 15a and The right baffle 15b, and the left baffle 15a is connected with the left swing arm 12a, and the right baffle 15b is connected with the right swing arm 12b; since the left baffle 15a and the right baffle 15b are arranged in the same manner, the left baffle 15a is used here as The structure and its connection with the swing arm will be explained.
  • the left baffle 15a mainly includes a plate body 151, and a connecting portion 152 connected to the plate body 151, wherein the extending direction of the plate body 151 is parallel to the extending direction of the spindle assembly 11, and the extending direction of the connecting portion 152 is the same as that of the plate body.
  • the extension direction of the 151 is vertical, and there may be two connecting portions 152, which are respectively provided at the two ends of the board 151 in the extension direction; with reference to FIGS.
  • the end of the connecting portion 152 away from the board 151 may be but not limited to Through the rotation pin 16 and the left swing arm 12a, the end of the connecting portion 152 close to the plate 151 can be but not limited to be connected with the left swing arm 12a through the drive pin 17, at the same time, the structure of the synchronization arm provided corresponding to the swing arm Referring to Figure 14, a V-shaped hole 24 is opened on the left synchronization wall 13c in Figure 14; in this way, when the left swing arm 12a rotates, the drive pin 17 can be moved along the V-shaped hole 24 to drive the connecting portion 152 to The rotating pin 16 is rotated as the center of rotation, so that the plate 151 is raised or lowered accordingly, so that the spindle assembly 11 and the plates 151 on both sides can be accommodated during the folding process of the foldable mobile terminal.
  • the accommodation space 22 of the flexible screen 40 is shown, and the surface of the accommodation space 22 is relatively flat, which can reduce the damage to the flexible screen 40.
  • the left synchronizing arm 13c and the right synchronizing arm 13d at one end can be provided with a V-shaped hole 24, and the other end Referring to Fig. 10, the left synchronization arm 13a and the right synchronization arm 13b are not provided with V-shaped holes. In this way, a plurality of limit grooves can be opened on the side of the left and right synchronization arms 13a and 13b close to the swing arm as shown in Figure 10; and the left and right synchronization arms 13c and 13d as shown in Figure 14 are close to the swing arm.
  • the mobile terminal includes a hinge mechanism 10, a left housing 20 and a right housing 30, and a flexible screen connected to the left housing 20 and the right housing 30. 40.
  • the flexible screen 40 can be connected to the left housing 20 and the right housing 30 through adhesive glue, but is not limited to. 1 and 6 together, the left housing 20 and the right housing 30 are separately provided on both sides of the shaft mechanism 10, and the left housing 20 is fixedly connected to the left swing arm 12a on the left, and the right housing 30 It is fixedly connected with the right swing arm 12b on the right side, and the specific fixing method may be but not limited to being connected by fasteners such as bolts or screws.
  • the left housing 20 rotates to drive the left swing arm 12a to rotate around the main shaft assembly 11
  • the left synchronization arm 13a rotates accordingly, which will drive the right synchronization arm 13b and the right swing arm 12b to rotate, thereby realizing
  • the left housing 20 and the right housing 30 of the folding mobile terminal move synchronously to make the two sides of the flexible screen 40 move synchronously, and the force of the flexible screen 40 is relatively uniform.
  • the left swing arm 12a and the right swing arm 12b on both sides of the main shaft assembly 11 rotate around different axes, such a design can form an accommodation space 22 that can accommodate the flexible screen 40 during the rotation, which can reduce the flexible screen. 40 probability of being damaged.
  • a left support 18a can be provided between the left housing 20 and the left swing arm 12a, so that the left support 18a can be passed through first Fasteners such as bolts or screws are fixed on the left swing arm 12a, and then the left housing 20 and the left bracket 18a are fixed by the fasteners, thereby realizing the connection between the left housing 20 and the left swing arm 12a.
  • first Fasteners such as bolts or screws are fixed on the left swing arm 12a
  • the left housing 20 and the left bracket 18a are fixed by the fasteners, thereby realizing the connection between the left housing 20 and the left swing arm 12a.
  • the foregoing embodiment only provides an example of the connection between the left housing 20 and the left swing arm 12a, and the left housing 20 and the left swing arm 12a may also be connected in other ways.
  • the connection between the right housing 30 and the right swing arm 12b through the right bracket 18b is the same as that of the left side, which will not be repeated here.
  • the present application defines the side of the foldable mobile terminal provided with the flexible screen 40 as the folded inner side of the mobile terminal, and the side opposite to it is defined as the mobile terminal The outside of the fold.
  • the mobile terminal is specifically set up, referring to FIGS. 6 and 15 at the same time, it also includes an appearance protector 19 arranged on the outer side of the fold, and the appearance protector 19 is fixed to the brackets on both sides of the spindle assembly 11 by an elastic mechanism 21, wherein,
  • the elastic mechanism 21 can be, but is not limited to, a spring.
  • the appearance protector 19 and the bracket When specifically connecting the appearance protector 19 and the bracket, the appearance protector 19 and the bracket can be respectively provided with mounting holes 23, and at the same time, hooks are provided at both ends of the elastic mechanism 21, so that the hooks are respectively hung on the corresponding
  • the connection of the appearance protector 19 and the bracket can be realized in the mounting hole 23. 4 and 5, in the folding process of the foldable mobile terminal, the appearance protector 19 and the two shells are attached to the hinge mechanism 10, so as to prevent the hinge mechanism 10 from being exposed to the outside of the mobile terminal. , While protecting the shaft mechanism 10, the foldable mobile terminal has a simple and beautiful appearance.

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Abstract

本申请实施例提供了一种转轴机构及可折叠移动终端，通过在转轴机构的主轴组件两侧设置摆臂组件以及同步组件，以在摆臂绕主轴组件转动时，同侧的同步臂随之转动，从而会带动另一侧的同步臂以及摆臂转动，进而可实现包含有该主轴组件的可折叠移动终端两侧的壳体同步运动，以使柔性屏的两侧同步运动，柔性屏的受力较为均匀；并且，由于主轴组件两侧的摆臂绕不同的轴线转动，这样的设计可使其在转动的过程中形成可以容纳柔性屏的容纳空间，以减小对柔性屏的损坏。

Description

一种转轴机构及可折叠移动终端
相关申请的交叉引用
本申请要求在2019年06月27日提交中国专利局、申请号为201910569376.7、申请名称为“一种转轴机构及可折叠移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及到终端技术领域，尤其涉及到一种转轴机构及可折叠移动终端。
背景技术
随着柔性显示屏技术的逐渐成熟，促使终端设备的显示方式发生了非常大的变化，可折叠柔性屏手机就是未来手机差异化的一大重要演进方向。由于可折叠柔性屏手机的显示屏具有可根据不同的使用场景进行显示模式的灵活切换的特点，其必将成为主流设备厂商下代手机开发的主方向。未来，可折叠柔性屏手机必将成为终端产品的一大卖点。
由于柔性屏幕和折叠转轴是可折叠柔性屏手机技术的关键。而柔性屏幕是比较脆弱的部件，如果在折叠过程中，柔性屏幕各处所受压力或拉力不均匀，很可能会导致其发生变形而被破坏。这时，不仅需要折叠转轴能够在超薄的容纳空间内完成180°旋转，还要为了配合柔性屏幕的特性，使柔性屏幕的受力均匀。
发明内容
本申请实施例提供了一种转轴机构及可折叠移动终端，以使柔性屏的受力均匀，延长其使用寿命。
第一方面，提供了一种转轴机构，该转轴机构可应用于可折叠的移动终端，并且作为移动终端的折叠机构，其中，该转轴机构分别与移动终端的两个壳体固定连接，在移动终端折叠时，两个壳体可绕该转轴机构转动以实现折叠。该转轴机构主要包括三部分：主轴组件、摆臂组件和同步组件；其中，主轴组件具有转轴的作用；摆臂组件，包括至少一个摆臂组，其中，每个摆臂组包括对应设置在主轴组件的两侧的摆臂，摆臂与主轴组件转动连接，主轴组件两侧的摆臂转动所绕的轴线不同，且分别平行于主轴组件的延伸方向；同步组件，与摆臂组件对应设置，包括分别设置在主轴组件的两侧的同步臂，两个同步臂齿轮连接；每个同步臂与同侧的摆臂滑动连接，并可随对应侧的摆臂转动。因为主轴组件两侧的同步臂齿轮连接，因此，一侧的同步臂转动，会带动另一侧的同步臂同时转动；又因为，同侧的同步臂与摆臂滑动连接。这样，当一侧的摆臂相对主轴组件转动时，同侧的同步臂随之转动，从而会带动另一侧的同步臂以及摆臂转动，进而可实现包含有该主轴组件的可折叠移动终端两侧的壳体同步运动，以使柔性屏的两侧同步运动，柔性屏的受力较为均匀。并且，由于主轴组件两侧的摆臂绕不同的轴线转动，这样的设计可使其在转动的过程中形成可以容纳柔性屏的容纳空间，以减小对柔性屏的损坏。
在具体设置摆臂及同步臂的转动轴线时，同侧设置的摆臂和同步臂转动所绕的轴线重 合。从而有利于简化转动机构的结构。
在一个具体实施方式中，沿所述主轴组件的延伸方向，所述摆臂与所述同步臂一一对应设置，或，所述摆臂的两个端部各设置一个所述同步臂；在摆臂与同侧的同步臂滑动连接时，同步臂开设有条形孔，条形孔的延伸方向与同步臂的延伸方向相同，摆臂设置有可沿条形孔滑动的滑动部。其中，该滑动部在具体设置时，可以为设置于摆臂的固定连接杆。这样，当摆臂转动时，滑动部沿条形孔滑动，同时带动同侧的同步臂转动。
在一个具体实施方式中，摆臂和同步臂之间还设置有弹性组件，以在二者间形成开合的扭力。此时，同步臂朝向摆臂的侧壁设置有多个限位凹槽；弹性组件设置于同侧的摆臂与同步臂之间，包括相抵接的两部分，分别为滚珠和弹性结构件，其中，弹性结构件的一端与摆臂相抵接，另一端与滚珠相抵接，滚珠可沿同步臂靠近摆臂的侧壁滚动。当包含有该转轴机构的可折叠移动终端的折叠状态改变时，摆臂绕主轴组件转动，同步臂随之转动，同时滚珠在弹性力的作用下可沿同步臂的侧壁滚动，并与同步臂的侧壁之间产生摩擦，从而使摆臂和同步臂之间形成阻尼力，有利于提升用户使用体验。同时，由于同步臂靠近摆臂的侧壁上具有多个限位凹槽，这样滚珠在滚动的过程中会在弹性结构件的作用下落入限位凹槽，从而可实现悬停体验。
在摆臂与弹性组件具体连接时，可使摆臂设置有用于容置弹性结构件的容置槽，这样，弹性结构件可容置于该容置槽，并与容置槽的槽底相抵接。
其中，弹性结构件可以但不限于为弹簧，当弹性结构件为弹簧时，为了实现对弹簧的限位，以使其在运动过程中不发生弯折，可以在容置槽中设置限位支柱，从而使弹簧套设于限位支柱。并且，弹簧可以为一条，也可以为并排设置的多条，当弹簧为并排设置的多条时，多条弹簧靠近同步臂的一端通过U型连接件相连接，此时，滚珠与该U型连接件的端面相抵接，并沿U型连接件的端面运动，这样可减小弹性结构件与滚珠之间的摩擦，使滚珠的运动更加灵活。
在具体实现摆臂与主轴组件的连接时，主轴组件设置有摆臂安装槽，摆臂安装槽的槽壁上设置有凸起，凸起具有圆弧支撑面；摆臂与主轴组件连接的一端设置有支撑轴，支撑轴与圆弧支撑面接触，且可沿圆弧支撑面转动。从而实现摆臂与主轴组件的转动连接。除此之外，摆臂还可通过铰接或者枢装等方式实现与主轴组件的转动连接。
为了形成具有平整表面的用于容纳柔性屏的容纳空间，在一个可能的实施方式中，转轴机构还包括分别设置在主轴组件的两侧的挡板，同时在同步臂开设有V形孔；挡板，包括板体，以及与板体连接的连接部，板体的延伸方向平行于主轴组件的延伸方向，连接部的延伸方向与板体的延伸方向垂直；连接部远离板体的一端通过转动销轴与摆臂转动连接，连接部靠近板体的一端通过驱动销轴与摆臂连接；摆臂转动使驱动销轴沿V形孔运动，以驱动连接部绕转动销轴转动，从而使板体随之提升或降落，进而使主轴组件和两侧的板体在可折叠移动终端折叠的过程中可形成容置柔性屏的容纳空间，并且该容置容纳空间的表面较为平整，可减小对柔性屏的损坏。
第二方面，提供了一种可折叠移动终端，该移动终端包括上述第一方面中任意一种可能的转轴机构，两个壳体，以及固定于两个壳体的柔性屏，其中，两个壳体分设于转轴机构的两侧，且每个壳体与位于同一侧的摆臂固定连接。该移动终端在使用时，一侧的壳体转动带动摆臂绕主轴组件转动时，同侧的同步臂随之转动，从而会带动另一侧的同步臂以及摆臂转动，进而可实现可折叠移动终端两侧壳体的同步运动，以使柔性屏的两侧同步运 动，柔性屏的受力较为均匀。并且，由于主轴组件两侧的摆臂绕不同的轴线转动，这样的设计可使其在转动的过程中形成可以容纳柔性屏的容纳空间，可降低柔性屏被损坏的概率。
在具体实现壳体与摆臂的连接时，可以在壳体与摆臂之间设置支架，并将支架固定在摆臂上，然后再将壳体与支架固定，从而实现壳体与摆臂的连接。
在一个可能的实现方式中，该移动终端还包括外观保护件，该外观保护件设置于移动终端的折叠外侧，并通过弹力机构固定于主轴组件两侧的支架上。在可折叠移动终端折叠的过程中，外观保护件以及两个壳体均与转轴机构相贴合，从而在达到对转轴机构的保护的同时，使可折叠移动终端的外观简洁、美观。
附图说明
图1为本申请实施例提供的可折叠移动终端的分解结构示意图；
图2为本申请实施例提供的可折叠移动终端展开角度为180°时的结构示意图；
图3为本申请实施例提供的可折叠移动终端展开角度为90°时的结构示意图；
图4为本申请另一实施例提供的可折叠移动终端展开角度为90°时的结构示意图；
图5为本申请实施例提供的可折叠移动终端折叠时的状态示意图；
图6为本申请实施例提供的转轴机构的分解结构示意图；
图7为本申请实施例提供的转轴机构折叠时的状态示意图；
图8为本申请实施例提供的摆臂与主轴组件连接的分解结构示意图；
图9为本申请实施例提供的摆臂与主轴组件连接的结构示意图；
图10为本申请实施例提供的同步臂与主轴组件连接的结构示意图；
图11为本申请实施例提供的弹性组件与摆臂及同步臂配合的结构示意图；
图12为本申请实施例提供的弹性组件与同步臂配合的局部结构示意图；
图13为本申请实施例提供的折叠状态下转轴机构的侧视图；
图14为本申请另一实施例提供的折叠中间状态下转轴机构的侧视图；
图15为本申请另一实施例提供的转轴机构的分解结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
为了方便理解本申请实施例提供的转轴机构，下面首先说明一下其应用场景，该转轴机构可应用于移动终端，尤其为屏幕可折叠的移动终端，如手机、PDA(Personal Digital Assistant，掌上电脑)、笔记本电脑或平板电脑等。本申请实施例所应用的移动终端均包含如图1中所示的结构：左壳体20、转轴机构10、右壳体30及柔性屏40。移动终端在使用时，可根据不同的使用情景进行折叠及展开。图2展示了移动终端的左壳体与右壳体的夹角为180°时的状态，图3和图4展示了移动终端的左壳体20与右壳体30折叠为夹角90°时的状态，图5展示了移动终端的左壳体20与右壳体30折叠为夹角0°时的状态，移动终端展开和折叠过程即为左壳体20以及右壳体30绕转轴机构10转动的过程。为方便理解本申请实施例提供的转轴机构10，下面结合附图对其结构进行详细的说明。
首先参照图1和图6，本申请实施例提供的转轴机构10主要包括主轴组件11、摆臂组 件和同步组件。其中，主轴组件11为一个支撑件，其同时起到转轴的作用；摆臂组件与主轴组件11转动连接，摆臂组件与可折叠移动终端的壳体连接，其可作为该转轴机构10的主动转动部分来带动同步组件转动。下面结合附图对该转轴机构10的各组成部分进行详细说明。
在具体设置主轴组件11时，该主轴组件11可以采用不同的结构。参照图6，本申请实施例提供的主轴组件11的整体结构可以为一个半圆柱形。但应当理解的是，上述主轴组件11的形状仅仅为一个具体的示例，本申请实施例提供的主轴组件11还可以采用其它的结构形式。为了方便描述，定义了主轴组件11的延伸方向，如图6中所示，该主轴组件11的延伸方向指的是图1中的左壳体20及右壳体30在转动时所绕的轴线的方向。此外，在主轴组件11支撑摆臂组件时，该主轴组件11上设置了与摆臂组件对应的结构。为方便理解该主轴组件11的内部结构，下面结合摆臂组件一起说明一下主轴组件11的结构。
参照图1，在具体设置摆臂组件时，摆臂组件，包括摆臂组，摆臂组用于连接左壳体20和右壳体30。其中，摆臂组的个数可以根据需要而定，如主轴组件11的每个端部各设置一个，或者如6和图7所示，在主轴组件11的每个端部设置两个，也可以根据具体需要设置更多个。
在具体设置摆臂组时，参照图6，每个摆臂组包括对应设置在主轴组件11的两侧的摆臂，为了方便描述，将两个摆臂分别命名为左摆臂12a及右摆臂12b，其中左摆臂12a及右摆臂12b分别用于与图1中所示的移动终端的左壳体20和右壳体30固定连接。一并参考图1和图6，左摆臂12a与左壳体20固定连接，右摆臂12b与右壳体30固定连接，在具体实现固定连接时，可以但不限于采用螺栓或者螺钉等紧固件进行固定连接；此时，左摆臂12a与右摆臂12b分别与左壳体20及右壳体30同步运动。在具体设置左摆臂12a和右摆臂12b时，左摆臂12a及右摆臂12b设置在了主轴组件11的两侧，更具体的：左摆臂12a及右摆臂12b可沿主轴组件11的延伸方向分列在其两侧，对于左摆臂12a及右摆臂12b来说其与主轴组件11、壳体以及其它可能的结构之间的连接方式相同，因此，下述以其中的左摆臂12a为例进行说明。
继续参照图6，在左摆臂12a具体与主轴组件11连接时，左摆臂12a与主轴组件11之间转动连接。并且左摆臂12a转动时所绕的轴线与右摆臂12b转动所绕的轴线不同，但是左摆臂12a转动所绕的轴线及对应的右摆臂12b转动所绕的轴线均平行于主轴组件11的延伸方向，以使左摆臂12a和右摆臂12b在转动的过程中形成可以容纳如图1所示的柔性屏40的水滴状的容纳空间22(参照图13)。
参照图8，给出了左摆臂12a与主轴组件11转动连接的一种具体的结构。其中，主轴组件11设置有摆臂安装槽111，摆臂安装槽111的槽壁上设置有凸起111a，凸起111a具有圆弧支撑面112a；左摆臂12a与主轴组件11连接的一端设置有支撑轴121，支撑轴121与圆弧支撑面112a接触，且可沿圆弧支撑面112a转动。从而实现左摆臂12a与主轴组件11的转动连接。应当理解的是，该左摆臂12a与主轴组件11连接结构的设置只是一种示例，还可以采用铰接等方式来实现摆臂组件与主轴组件11的连接。
继续参照图8，在具体设置右摆臂12b时，该右摆臂12b与主轴组件11的连接方式与左摆臂12a相同，因此在此不再详细赘述。但是左摆臂12a和右摆臂12b在分别与主轴组件11连接时，主轴组件11上的与两个摆臂相对应的摆臂安装槽111可以相对设置，也可以如图9所示，相错设置，只要能够实现左摆臂12a和右摆臂12b分别绕不同的轴线转动 即可。
参照图10，在具体设置同步组件时，同步组件与摆臂组件可以对应设置，同步组件包括分别设置在主轴组件11两侧的同步臂。此处的对应设置可以是一个摆臂组对应设置一组同步臂，也可以是指一个摆臂组对应设置两组同步臂，该两组同步臂沿主轴组件的延伸方向分别设置于摆臂的两个端部，并且设置于摆臂两端的两组同步臂可以相同，也可以不同，例如，在摆臂的一个端部设置一组如图10所示的同步臂，在另一端设置一组如图14所示的同步臂。其中，两个同步臂齿轮连接；每个同步臂与同侧的摆臂滑动连接，并可随对应侧的摆臂转动。同样的，为了方便描述，将与左摆臂12a同侧设置的同步臂称为左同步臂13a，将与右摆臂12b同侧设置的同步臂称为右同步臂13b。对于左同步臂13a及右同步臂13b来说其与主轴组件11、同侧的摆臂以及其它可能的结构之间的连接方式相同，因此，下述仅以其中的左同步臂13a为例进行说明。
继续参照图10，在具体设置左同步臂13a时，左同步臂13a绕主轴组件11转动的轴线可根据需要进行设置。在图10所示的实施例中，左同步臂13a转动所绕的轴线和左摆臂12a转动所绕的轴线重合，这样可有利于简化如图6所示的转动机构10的结构。可以理解的是，左同步臂13a转动所绕的轴线还可以为其它的设置方式，只要使其能够有效的避开图1中所示的柔性屏40，使柔性屏40可以容置于左摆臂12a和右摆臂12b转动形成的可以容纳柔性屏的容纳空间22(参照图13)即可。
继续参照图10，在具体设置右同步臂13b时，该右同步臂13b与主轴组件11的连接方式与左同步臂12a相同，因此在此不再详细赘述。由于同步臂与同侧的摆臂滑动连接，且同步臂可随摆臂转动，可以理解的是，当同步臂转动时，摆臂也可以随同步臂转动。这样，以左摆臂12a作为主动转动部为例，当左摆臂12a相对主轴组件11转动时，左同步臂13a随之转动，又左同步臂13a与右同步臂13b之间齿轮连接，因此左同步臂13a转动会带动右同步臂13b以及右摆臂12b转动，结合图1，进而可实现包含有转轴机构10的可折叠移动终端的左壳体20和右壳体30同步运动，以使柔性屏40的两侧同步运动，柔性屏40的受力较为均匀。
继续参照图10，具体将左摆臂12a与左同步臂13a滑动连接时，可以在左同步臂13a开设有条形孔131，条形孔131的延伸方向与左同步臂13a的延伸方向相同，同时，一并参照图11，左摆臂12a设置有可沿条形孔131滑动的滑动部122。其中，参照图11和图13，该滑动部122在具体设置时，可以但不限于为设置于左摆臂12a的固定连接杆。这样，当左摆臂12a转动时，滑动部122沿条形孔131滑动，同时带动左同步臂13a转动。可以理解的是，右摆臂12b与右同步臂13b的滑动连接方式与左摆臂12a与左同步臂12b的滑动连接方式相同，此处不再赘述。
由于左摆臂12a和左同步臂13a的连接方式，与右摆臂12b和右同步臂13b的连接方式相同，在以下实施例中均以左摆臂12a和左同步臂13a为例对其具体连接方式进行说明。参照图11，在具体实现左摆臂12a和左同步臂13a的连接时，左摆臂12a和左同步臂13a之间还设置有弹性组件，此时，左同步臂13a朝向左摆臂12a的侧壁设置有多个限位凹槽(图中未示出)；弹性组件设置于左摆臂12a与左同步臂13a之间，包括相抵接的滚珠141和弹性结构件142，其中，弹性结构件142的一端与左摆臂12a相抵接，另一端与滚珠141相抵接，滚珠141可沿左同步臂13a靠近左摆臂12a的侧壁滚动。当包含有该转轴机构的可折叠移动终端的折叠状态改变时，左摆臂12a绕主轴组件11转动，左同步臂13a随之转 动，同时滚珠141在弹性结构件142的弹性力的作用下可沿左同步臂13a的侧壁滚动，并与左同步臂13a的侧壁之间产生摩擦，从而使左摆臂12a和左同步臂13a之间形成阻尼力，有利于优化用户使用手感，提升用户使用体验。同时，由于左同步臂13a靠近左摆臂12a的侧壁上具有多个限位凹槽，这样滚珠141在滚动的过程中会在弹性结构件142的作用下落入限位凹槽，从而可实现悬停体验。
参照图11，在左摆臂12a与弹性组件具体连接时，一并参照图8和图9，可使左摆臂12a设置有用于容置弹性结构件142的容置槽123，这样，弹性结构件142可容置于该容置槽123，并与容置123的槽底相抵接。
其中，结合图11和图12，弹性结构件142可以但不限于为弹簧，当弹性结构件142为弹簧时，为了实现对弹簧的限位，以使其在运动过程中不发生弯折，可以在容置槽中设置限位支柱(图中未示出)，从而使弹簧套设于限位支柱。并且，弹簧可以为一条，也可以如图12所示，为并排设置的多条，当弹簧为并排设置的多条时，多条弹簧靠近左同步臂13a的一端通过U型连接件143相连接，此时，滚珠141与该U型连接件143的端面相抵接，并沿U型连接件143的端面运动，这样可减小弹性结构件142与滚珠141之间的摩擦，使滚珠141的运动更加灵活。
为了对包含有该摆臂组件的可折叠移动终端的折叠过程做更好的说明，可以同时参照图2至图5，在图2中，移动终端的左壳体20和右壳体30之间的夹角为180°，参照图11，此时，滚珠141落在对应的限位凹槽中。参照图2、图5和图11，当需要将移动终端的左壳体20和右壳体30之间的夹角从180°变为0°时，左摆臂12a绕主轴组件11转动，左同步臂13a随之转动，同时，右同步臂13b、右摆臂12b与左同步臂13a、左摆臂12a相向运动，滚珠141沿左同步臂13a的侧壁滚动。参照图5和图11，当滚珠141落入左壳体20和右壳体30之间的夹角为0°时对应的限位凹槽中时，限位凹槽的槽壁阻止滚珠141继续在左同步臂13a上运动，从而使左摆臂12a停止转动，进而使移动终端的左壳体20和右壳体30悬停于0°夹角的状态。
参照图11，由于左同步臂13a靠近左摆臂12a的侧壁具有多个限位凹槽，这样可通过使滚珠141落入对应的限位凹槽中来实现左摆臂12a对应转动位的悬停，例如，一并参照图3、图4和图11，可通过合理设置使移动终端的左壳体20和右壳体30之间的夹角维持在90°。并且，继续参照图11，在本申请实施方式中，当滚珠141在相邻两个限位凹槽之间运动时，会使其与左同步臂13a之间产生恒定的摩擦力，从而可实现左摆臂12a与左同步臂13a之间具有恒定的阻尼，此时可使手感恒定。另外，值得一提的是，参照图2、图5和图11，当左同步臂13a只在与移动终端的左壳体20和右壳体30之间的夹角为0°和180°相对应的位置设置有限位凹槽时，结合图11和图13，用户在折叠该移动终端时，只需手动使两个壳体之间具有较小的夹角(例如30°)，就可以使滚珠141在弹性结构件142的作用下进入0°对应的限位凹槽，以实现移动终端的自动闭合；参照图10和图11，用户在展开该移动终端时，只需手动使两个壳体之间具有较大的夹角(例如150°)，就可以使滚珠141在弹性结构件142的作用下进入180°对应的限位凹槽，以实现移动终端的自动展开。由此可见，采用如图6所示的转轴机构10，可以实现可折叠移动终端的自开合，从而有利于提升用户体验。
为了形成具有平整表面的用于容纳图1中的柔性屏40的容纳空间22(参照图13)，参照图6，转轴机构10还包括分别设置在主轴组件11的两侧的左挡板15a和右挡板15b， 并且左挡板15a与左摆臂12a连接，右挡板15b与右摆臂12b连接；由于左挡板15a和右挡板15b的设置方式相同，此处以左挡板15a为例对其结构，以及其与摆臂的连接进行说明。参照图6，左挡板15a主要包括板体151，以及与板体151连接的连接部152，其中板体151的延伸方向平行于主轴组件11的延伸方向，连接部152的延伸方向与板体151的延伸方向垂直，连接部152可以为两个，且分别设置于板体151延伸方向上的两个端部；结合图7和图13，连接部152远离板体151的一端可以但不限于通过转动销轴16与左摆臂12a转动连接，连接部152靠近板体151的一端可以但不限于通过驱动销轴17与左摆臂12a连接，同时，与摆臂对应设置的同步臂的结构可参照图14，在图14中左同步壁13c上开设有V形孔24；这样，在左摆臂12a转动时，可使驱动销轴17沿V形孔24运动，以驱动连接部152以转动销轴16为转动中心进行转动，从而使板体151随之提升或降落，进而使主轴组件11和两侧的板体151在可折叠移动终端的折叠过程中可形成容置如图1中所示的柔性屏40的容纳空间22，并且该容纳空间22的表面较为平整，可减小对柔性屏40的损坏。
值得一提的是，当一个摆臂的两端各设置一个同步臂时，可以参照图14将其中一个端部的左同步臂13c以及右同步臂13d开设有V形孔24，而另一个端部参照图10，将左同步臂13a和右同步臂13b不开设V形孔。这样，可使如图10中的左同步臂13a和右同步臂13b靠近摆臂的一侧开设多个限位凹槽；而如图14中的左同步臂13c以及右同步臂13d靠近摆臂的一侧不开设限位凹槽，从而只在图10中所示的左同步臂13a和右同步臂13b与对应侧的摆臂之间设置弹性组件，而在图14中所示的左同步臂13c以及右同步臂13d与对应侧的摆臂之间不设置弹性组件。可以理解的是，上述实施方式只是同步臂设置的一种示例，还可以在摆臂两端的同步臂上均设置限位凹槽，并且在摆臂与同步臂之间均设置弹性组件，从而增加摆臂与同步臂之间的阻尼作用。
第二方面，提供了一种可折叠移动终端，参照图1，该移动终端包括转轴机构10，左壳体20和右壳体30，以及与左壳体20和右壳体30连接的柔性屏40，柔性屏40可以但不限于通过粘接胶与左壳体20和右壳体30连接。其中，一并参照图1和图6，左壳体20和右壳体30分设于转轴机构10的两侧，且左壳体20与位于左侧的左摆臂12a固定连接，右壳体30与位于右侧的右摆臂12b固定连接，其具体固定方式可以但不限于为通过螺栓或者螺钉等紧固件进行连接。该移动终端在使用时，左壳体20转动带动左摆臂12a绕主轴组件11转动时，左同步臂13a随之转动，从而会带动右同步臂13b以及右摆臂12b转动，进而可实现可折叠移动终端的左壳体20和右壳体30的同步运动，以使柔性屏40的两侧同步运动，柔性屏40的受力较为均匀。并且，由于主轴组件11两侧的左摆臂12a和右摆臂12b绕不同的轴线转动，这样的设计可使其在转动的过程中形成可以容纳柔性屏40的容纳空间22，可降低柔性屏40被损坏的概率。
继续参照图1和图6，在具体实现左壳体20与左摆臂12a的连接时，可以在左壳体20与左摆臂12a之间设置左支架18a，这样可以先将左支架18a通过螺栓或者螺钉等紧固件固定在左摆臂12a上，然后再将左壳体20与左支架18a通过紧固件进行固定，从而实现左壳体20与左摆臂12a的连接。可以理解的是，上述实施例只给出了左壳体20与左摆臂12a连接的一种示例，左壳体20与左摆臂12a还可以通过其它的方式进行连接。并且，右壳体30通过右支架18b与右摆臂12b的连接方式与左侧相同，此处不再赘述。
参照图1，为了便于对可折叠移动终端的结构进行说明，本申请将可折叠移动终端设 置有柔性屏40的一侧定义为移动终端的折叠内侧，而将与其相对的一侧定义为移动终端的折叠外侧。该移动终端在具体设置时，同时参照图6和图15，还包括设置于折叠外侧的外观保护件19，该外观保护件19通过弹力机构21固定于主轴组件11两侧的支架上，其中，弹力机构21可以但不限于为弹簧。在具体将外观保护件19与支架连接时，可以分别在该外观保护件19和支架上对应设置安装孔23，同时将弹力机构21的两端设置挂钩，这样通过将挂钩分别挂设于对应的安装孔23中即可实现外观保护件19与支架的连接。结合图4和图5，在该可折叠移动终端折叠的过程中，外观保护件19以及两个壳体均与转轴机构10相贴合，从而可在避免转轴机构10裸露在移动终端的折叠外侧，达到对转轴机构10的保护的同时，使可折叠移动终端的外观简洁、美观。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (13)

  1. 一种转轴机构，应用于可折叠移动终端，其特征在于，所述转轴机构包括：
    主轴组件；
    摆臂组件，包括至少一个摆臂组，其中，每个所述摆臂组包括对应设置在所述主轴组件的两侧的摆臂，所述摆臂与所述主轴组件转动连接，所述主轴组件两侧的所述摆臂转动所绕的轴线不同，且分别平行于所述主轴组件的延伸方向；
    同步组件，与所述摆臂组件对应设置，包括分别设置在所述主轴组件的两侧的同步臂，两个所述同步臂齿轮连接；每个所述同步臂与同侧的所述摆臂滑动连接，并可随对应侧的所述摆臂转动。
  2. 根据权利要求1所述的转轴机构，其特征在于，同侧设置的所述摆臂和所述同步臂转动所绕的轴线重合。
  3. 根据权利要求1所述的转轴机构，其特征在于，沿所述主轴组件的延伸方向，所述摆臂与所述同步臂一一对应设置，或，所述摆臂的两个端部各设置一个所述同步臂；
    所述同步臂开设有条形孔，所述条形孔的延伸方向与所述同步臂的延伸方向相同，所述摆臂设置有可沿所述条形孔滑动的滑动部。
  4. 根据权利要求3所述的转轴机构，其特征在于，所述滑动部为设置于所述摆臂的固定连接杆。
  5. 根据权利要求1所述的转轴机构，其特征在于，所述主轴组件设置有摆臂安装槽，所述摆臂安装槽的槽壁上设置有凸起，所述凸起具有圆弧支撑面；
    所述摆臂与所述主轴组件连接的一端设置有支撑轴，所述支撑轴与所述圆弧支撑面接触，且可沿所述圆弧支撑面转动。
  6. 根据权利要求1所述的转轴机构，其特征在于，所述转轴机构还包括分别设置在所述主轴组件的两侧的挡板，所述同步臂还开设有V形孔；
    所述挡板，包括板体，以及与所述板体连接的连接部，所述挡板的延伸方向平行于所述主轴组件的延伸方向，所述连接部的延伸方向与所述板体的延伸方向垂直；所述连接部远离所述板体的一端通过转动销轴与所述摆臂转动连接，所述连接部靠近所述板体的一端通过驱动销轴与所述摆臂连接；所述摆臂转动使所述驱动销轴沿所述V形孔运动，以驱动所述连接部绕所述转动销轴转动，使所述主轴组件和两侧的所述板体形成容置柔性屏的容纳空间。
  7. 根据权利要求1～6任一项所述的转轴机构，其特征在于，所述同步臂朝向所述摆臂的侧壁设置有多个限位凹槽；
    所述转轴机构还包括弹性组件，所述弹性组件设置于同侧的所述摆臂与所述同步臂之间，包括相抵接的滚珠和弹性结构件，所述弹性结构件的一端与所述摆臂相抵接，另一端与所述滚珠相抵接，所述滚珠可沿所述同步臂靠近所述摆臂的侧壁滚动。
  8. 根据权利要求7所述的转轴机构，其特征在于，所述摆臂设置有用于容置所述弹性结构件的容置槽，所述弹性结构件容置于所述容置槽，并与所述容置槽的槽底相抵接。
  9. 根据权利要求8所述的转轴机构，其特征在于，所述弹性结构件包括并排设置的多条弹簧，所述多条弹簧靠近所述同步臂的一端相连接。
  10. 根据权利要求9所述的转轴机构，其特征在于，所述容置槽中设置有限位支柱， 所述多条弹簧套设于所述限位支柱；
    所述多条弹簧靠近所述同步臂的一端通过U型连接件相连接，所述滚珠与所述U型连接件的端面相抵接。
  11. 一种可折叠移动终端，其特征在于，包括如权利要求1～10任一项所述的转轴机构，两个壳体，以及固定于所述两个壳体上的柔性屏，其中，所述两个壳体分设于所述转轴机构的两侧，且每个壳体与位于同一侧的所述摆臂固定连接。
  12. 根据权利要求11所述的移动终端，其特征在于，还包括分别设置于所述主轴组件两侧的支架，所述支架用于连接对应侧的所述摆臂和所述壳体。
  13. 根据权利要求12所述的移动终端，其特征在于，还包括外观保护件，所述外观保护件设置于所述移动终端的折叠外侧，且通过弹力机构分别与所述主轴组件的两侧的所述支架连接。
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