WO2023071978A1 - 一种转轴机构及电子设备 - Google Patents

一种转轴机构及电子设备 Download PDF

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Publication number
WO2023071978A1
WO2023071978A1 PCT/CN2022/127007 CN2022127007W WO2023071978A1 WO 2023071978 A1 WO2023071978 A1 WO 2023071978A1 CN 2022127007 W CN2022127007 W CN 2022127007W WO 2023071978 A1 WO2023071978 A1 WO 2023071978A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
connecting rod
support plate
cam structure
rotating shaft
Prior art date
Application number
PCT/CN2022/127007
Other languages
English (en)
French (fr)
Inventor
詹强
邹亚科
花蕾蕾
Original Assignee
华为技术有限公司
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 filed Critical 华为技术有限公司
Priority to KR1020247011864A priority Critical patent/KR20240053073A/ko
Publication of WO2023071978A1 publication Critical patent/WO2023071978A1/zh

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    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • 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
    • 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

Definitions

  • the present application relates to the technical field of electronic equipment, in particular to a rotating shaft mechanism and electronic equipment.
  • the flexible display is a key component in a foldable electronic device, it has the feature of continuous foldability. Usually, in order to avoid the flexible display being pulled or squeezed during the folding process of the foldable electronic device, it is necessary to make the force on the flexible display relatively uniform throughout the process of folding along with the electronic device.
  • the present application provides a rotating shaft mechanism and electronic equipment, so as to reduce the risk of damage to the flexible display screen of the electronic equipment, prolong its service life, and improve the reliability of the electronic equipment.
  • the present application provides a shaft mechanism
  • the shaft mechanism may include a spindle module
  • the spindle module may include a base
  • the base may serve as a supporting structure for the entire spindle module.
  • the spindle module may further include a first support plate, a second support plate, a first gear connecting rod and a second gear connecting rod, wherein the first support plate and the second support plate are located on opposite sides of the base, And both the first support plate and the second support plate are rotatably connected with the base.
  • the first gear connecting rod and the second gear connecting rod are rotatably connected to the end of the base, and the first gear connecting rod and the first supporting plate are located on the same side of the base, and the second gear connecting rod and the second supporting plate are located on the same side of the base. same side of the seat.
  • One end of the first gear connecting rod facing the second gear connecting rod has a coaxially arranged first gear and a first cam structure, and one end of the second gear connecting rod facing the first gear connecting rod has a coaxially arranged second gear , the first gear and the second gear can be meshed to realize the transmission connection between the two.
  • a first track groove can also be set on the first supporting plate, and a first guide part can be set on the first gear connecting rod, and the first guide part can be inserted into the first track groove and can be inserted along the first track groove.
  • Track slot slides.
  • the second support plate can be provided with a second track groove
  • the second gear connecting rod can be provided with a second guide part
  • the second guide part can be inserted in the second track groove, and can move along the second track groove. slide.
  • the spindle module can also include a conjoined cam, the conjoined cam is provided with a second cam structure and a fourth cam structure, the third cam structure is opposite to the first cam structure, and the fourth cam structure is opposite to the second cam structure.
  • the cam structures are relatively arranged.
  • the elastic structural member can be located on the side of the first cam structure and the second cam structure away from the integrated cam, and the elastic force accumulated by the elastic structural member can press the first cam structure and the second cam structure to the integrated cam, Therefore, the first cam structure and the third cam structure, and the second cam structure and the fourth cam structure are closely matched.
  • the first cam structure and the third cam structure, the second cam structure and the fourth cam structure can cooperate with each other in the process of the first gear connecting rod and the second gear connecting rod rotating relative to the base, so that The rotating position generates a corresponding damping force, thereby providing the user with an obvious rotating feel, so as to improve the user experience.
  • the damping force generated at different rotation positions can also make the first gear connecting rod and the second gear connecting rod stop moving without the action of external force, so that the first support plate and the second support plate hover at The corresponding rotation position, when applied to electronic equipment, can meet the user's individual requirements for use.
  • the rotating shaft mechanism provided in the present application, when the first support plate rotates relative to the base, the first guide part can slide along the first track groove, thereby driving the first gear connecting rod to rotate around the base. And because the first gear connecting rod and the second gear connecting rod are connected through the transmission of the first gear and the second gear, then the second gear connecting rod can rotate synchronously to the first gear connecting rod.
  • the two track grooves slide so as to drive the second support plate to rotate relative to the base. In this way, the synchronous rotation of the first support plate and the second support plate can be realized.
  • the first support plate When the shaft mechanism is applied to electronic equipment, the first support plate can be fixedly connected with one housing of the electronic equipment, and the second support plate can be fixedly connected with the other housing of the electronic equipment, then the first support plate and the second
  • the synchronous rotation of the support plate can realize the synchronous rotation of the two casings of the electronic device, so that the force on the flexible display screens fixed on the two casings can be relatively uniform, which can prevent the flexible display screen from being damaged. Pulling or squeezing is beneficial to reduce the risk of damage to the flexible display, thereby improving the structural reliability of the flexible display.
  • the spindle module may further include a first gear shaft and a second gear shaft.
  • the first gear shaft passes through the first gear, the first cam structure and the third cam structure, and the first gear connecting rod is rotatably connected to the first gear shaft.
  • the second gear shaft passes through the second gear, the second cam structure and the fourth cam structure, and the second gear connecting rod is rotatably connected to the second gear shaft.
  • the first gear connecting rod and the second gear connecting rod can rotate around the corresponding gear shaft, thereby improving the reliability of the rotation of the first gear connecting rod and the second gear connecting rod, so as to help improve the stability of the movement of the entire spindle module .
  • the spindle module may also include a conjoined snap ring.
  • the end of the first gear shaft away from the first gear connecting rod can be threadedly coupled with the conjoined snap ring.
  • the end of the second gear shaft away from the second gear connecting rod can be threadedly coupled with the connecting snap ring.
  • the elastic structural member can be located between the joint snap ring and the first gear and the second gear, and the elastic structural member can also elastically contact the joint snap ring and the first gear and the second gear respectively, so that The elastic structural member can press the first cam structure and the second cam structure to the connected cam.
  • the tightness of cooperation between the first cam structure and the third cam structure, and between the second cam structure and the fourth cam structure has an important influence on the damping force generated between the matching cam structures.
  • the tightness of the fit can be adjusted by the pressing force of the elastic structural member on the first cam structure and the second cam structure pressing against the integrated cam.
  • the adjustment of the deformation of the elastic structural member can be realized by adjusting the degree of tightening between the first gear shaft and the second gear shaft and the joint snap ring, so as to realize the adjustment of the elastic structural member to the first cam structure and the cam structure.
  • the second cam structure presses the adjustment of the pressing force of the connected cam.
  • the elastic structural member when the elastic structural member is specifically provided, it may be, but not limited to, a spring. There may be multiple elastic structural members, wherein at least one elastic structural member may be sleeved on the first gear shaft, and the elastic force generated by the at least one elastic structural member may be applied to the first gear. At least one elastic structural member can be sheathed on the second gear shaft, and the elastic force generated by the at least one elastic structural member can be applied to the second gear.
  • the aforementioned conjoined snap ring, elastic structural member, first gear shaft, and second gear shaft can all be installed on the base.
  • the base can also be provided with an accommodating groove. Then structures such as the integral snap ring, the elastic structural member, the first gear shaft and the second gear shaft can be accommodated in the accommodating groove.
  • the integrated snap ring can also abut against the groove wall of the accommodating groove, so that the integrated snap ring can be reliably connected with the base.
  • the base can be provided with a first slide groove and a second slide groove, and at the same time, the first support plate A first sliding arm is provided on a side surface facing the base, and a second sliding arm is provided on a side surface of the second support plate facing the base.
  • the first sliding arm can be accommodated in the first sliding slot, and the first sliding arm can slide toward or away from the second support plate along the first sliding slot.
  • the second sliding arm can be accommodated in the second sliding slot, and the second sliding arm can slide toward or away from the second support plate along the second sliding slot.
  • both the first support plate and the second support plate can be rotatably connected by means of a virtual axis in which the sliding arm and the chute are matched, which can make the structure of the main shaft module more compact, thereby facilitating the realization of the main shaft module.
  • Miniaturized design so that the spindle module occupies less space in the rotating shaft mechanism, so that more functional modules can be arranged in the rotating shaft mechanism.
  • the first chute and the second chute can be arranged alternately in the direction along the first support plate and the second support plate, so that the spindle module structure is more compact.
  • the first chute and the second chute may also be arranged opposite to each other.
  • the main shaft module may further include driven gears, the number of driven gears is even, and the even number of driven gears is located between the first gear and the second gear, so that the first The gear and the second gear are connected through the even number of driven gears, so as to improve the stability of the transmission of the first gear and the second gear, thereby improving the stability of the movement of the main shaft module.
  • the main shaft module can also include an intermediate gear shaft, the above-mentioned driven gear can be sleeved on the intermediate gear shaft, and the driven gear can be rotatably connected with the intermediate gear shaft, so that the reliability of the driven gear's rotation can be improved.
  • the base may also be provided with a gear box to which the respective driven gears may be mounted.
  • the gearbox can store the lubricating oil added to the driven gears, so as to reduce the wear of the contact surfaces of the driven gears in each transmission connection.
  • a first installation hole and a second installation hole may also be provided on the base, and the opening directions of the first installation hole and the second installation hole may be the same as the extension direction of the rotating shaft mechanism.
  • the first gear of the first gear connecting rod can be installed in the first installation hole, and the second gear of the second gear connecting rod can be installed in the second installation hole. Since the first gear and the second gear can be connected through the driven gear, in this application, the first installation hole and the second installation hole can be communicated with the gear box.
  • the lubricating oil stored in the gearbox can be used for the lubrication of the first gear and the second gear, so as to help reduce the wear of the contact surfaces between the driven gear and the first gear and the driven gear and the second gear, Therefore, the structural reliability of each gear is improved.
  • the rotating shaft mechanism may include a plurality of the above-mentioned spindle modules, which may be specifically set according to the extension length of the rotating shaft mechanism.
  • the rotating shaft mechanism may further include a cover plate, which may be located between two adjacent spindle modules.
  • the cover may include a first sub-cover and a second sub-cover, wherein the first sub-cover and the second sub-cover are rotatably connected to the base.
  • the first sub-cover can be located on the same side of the base as the first support plate, and the first sub-cover can be fixedly connected to the first support plate; the second sub-cover can be located on the same side of the base as the second support plate, And the second sub-cover is fixedly connected with the second support plate.
  • the first sub-cover and the first supporting plate can be connected to form a flat and continuous supporting surface
  • the second sub-cover and the second supporting plate can be connected to form a flat and continuous supporting surface, so that the rotating shaft mechanism can be applied to When using electronic equipment, it can realize stable support for the flexible display screen of the electronic equipment.
  • the present application also provides an electronic device, which includes a first casing, a second casing, a flexible display screen, and the rotating shaft mechanism of the first aspect.
  • the first housing and the second housing are respectively arranged on opposite sides of the rotating shaft mechanism, and the first supporting plate is fixedly connected with the first housing, and the second supporting plate is fixedly connected with the second housing; the flexible display screen continuously covers The first casing, the second casing and the rotating shaft mechanism, and the flexible display screen is fixedly connected with the first casing and the second casing.
  • the synchronous rotation of the two housings of the electronic equipment can be realized, so that the two housings fixed on the two housings can rotate synchronously.
  • the force of the flexible display screen is relatively uniform, which can prevent the flexible display screen from being pulled or squeezed, so as to help reduce the risk of damage to the flexible display screen, thereby improving the structural reliability of the flexible display screen.
  • an end of the first housing facing the second housing is provided with a first slot
  • an end of the second housing facing the first housing is provided with a second slot.
  • the first slot and the second slot can be combined to form an accommodating portion, and the rotating shaft mechanism can be hidden in the accommodating portion.
  • the electronic equipment can have an appearance effect of an integrated design, so as to improve its aesthetic appearance.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an electronic device provided by another embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of an electronic device provided by another embodiment of the present application.
  • FIG. 4 is a schematic diagram of an exploded structure of an electronic device provided by an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a spindle module provided by an embodiment of the present application.
  • Fig. 6 is the A direction view of the spindle module shown in Fig. 5;
  • Fig. 7 is a schematic diagram of the exploded structure of the spindle module shown in Fig. 6;
  • Fig. 8 is a schematic structural diagram of a base provided by an embodiment of the present application.
  • Fig. 9a is a schematic structural diagram of a spindle module provided by another embodiment of the present application.
  • Fig. 9b is a schematic structural diagram of a spindle module provided by another embodiment of the present application.
  • Fig. 10 is a schematic diagram of the transmission mode of the first gear connecting rod and the second gear connecting rod provided by an embodiment of the present application;
  • Fig. 11 is a sectional view at B-B of the spindle module shown in Fig. 6;
  • Fig. 12 is a schematic diagram of cooperation between the first cam structure, the second cam structure and the conjoined cam provided by an embodiment of the present application;
  • Fig. 13 is a schematic structural diagram of a rotating shaft mechanism provided by another embodiment of the present application.
  • 3 - second shell 3a - first face; 3b - second face; 301 - second slot.
  • the hinge mechanism can be applied to, but not limited to, foldable electronic devices such as mobile phones, personal digital assistants (PDAs), notebook computers, and tablet computers.
  • PDAs personal digital assistants
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • the electronic device may also include a first housing 2 , a second housing 3 and a flexible display screen (not shown in FIG. 1 ).
  • the first housing 2 and the second housing 3 are located on both sides of the rotating shaft mechanism 1 and can rotate around the rotating shaft mechanism 1 .
  • the electronic device When the electronic device is in use, it can be closed and unfolded according to different usage scenarios.
  • FIG. 1 the electronic device is in the closed state
  • FIG. 1 shows the relative positional relationship between the rotating shaft mechanism 1 and the two housings when the electronic device is in the closed state.
  • the surface of the rotating shaft mechanism 1 , the first surface 2 a of the first casing 2 and the first surface 3 a of the second casing 3 can collectively serve as the appearance surface of the electronic device.
  • the first surface 2a of the first housing 2 refers to the surface of the first housing 2 away from the flexible display screen
  • the first surface 3a of the second housing 3 refers to the surface of the second housing 3 away from the flexible display screen. surface.
  • FIG. 2 shows a schematic structural diagram of the electronic device when it is in an unfolded state. It is worth mentioning that FIG. 2 shows the structures of the second surface 2 b of the first housing 2 and the second surface 3 b of the second housing 3 .
  • the second surface 2b of the first housing 2 refers to the surface of the first housing 2 for supporting the flexible display
  • the second surface 3b of the second housing 3 refers to the surface of the second housing 3 for supporting The surface of the flexible display.
  • the flexible display screen can continuously cover the second surface 2b of the first casing 2, the second surface 3b of the second casing 3, and the shaft mechanism 1, and the flexible display screen can be connected with the second surface 2b of the first casing 2 and the second surface 3b of the second casing 3.
  • the second surface 3b of the second housing 3 is fixedly connected, and the connection method may be but not limited to bonding. In this way, when the electronic device is in the unfolded state as shown in FIG. 2 , the first casing 2 and the second casing 3 can support the flexible display screen.
  • FIG. 3 shows a schematic structural view of the electronic device in an intermediate state from an unfolded state to a closed state, or from a closed state to an unfolded state.
  • the angle between the second surface 2b of the first housing 2 and the second surface 3b of the second housing 3 is greater than 0° and less than 180°, for example, it can be 150°. °.
  • the flexible display screen can be folded along with the first casing 2 and the second casing 3 .
  • the process of the electronic device from the unfolded state shown in FIG. 2 to the closed state shown in FIG. 1 , or from the closed state shown in FIG. 1 to the unfolded state shown in FIG. 2 is the first housing 2 and the process of the second casing 3 rotating around the rotating shaft mechanism 1.
  • the hinge mechanism 1 can be set corresponding to the foldable part of the flexible display screen, so it can control the foldable part of the flexible display screen in the unfolded state shown in FIG. 2 .
  • the support and the accommodation of the foldable part of the flexible display in the closed state shown in FIG. 1 all play an important role.
  • the reliable structure of the rotating shaft mechanism 1 can play an important role in realizing the stability of the movement process of the electronic device.
  • references to "one embodiment” or “some embodiments” or the like in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application.
  • appearances of the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in other embodiments,” etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean “one or more but not all embodiments” unless specifically stated otherwise.
  • the terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless specifically stated otherwise.
  • FIG. 4 is a schematic exploded structure diagram of the electronic device shown in FIG. 2 . It can be seen from FIG. 4 that the first housing 2 and the second housing 3 are located on opposite sides of the rotating shaft mechanism 1 .
  • the rotating shaft mechanism 1 provided by the embodiment of the present application may include a main shaft module 101, wherein the number of the main shaft modules 101 may be one or more, which may be specifically determined according to the configuration of the rotating shaft mechanism 1. Set the length in the extension direction.
  • the extension direction of the rotating shaft mechanism 1 is the same as the axial direction of the rotating shaft around which the first housing 2 and the second housing 3 rotate around the rotating shaft mechanism 1 .
  • the rotating shaft mechanism 1 includes two main shaft modules 101 , and the two main shaft modules 101 may be arranged symmetrically along the extending direction of the rotating shaft mechanism 1 .
  • FIG. 5 is a schematic structural diagram of a spindle module 101 according to an embodiment of the present application.
  • the spindle module 101 may include a first support plate 1011 and a second support plate 1012 .
  • the first support plate 1011 can be fixedly connected with the first housing 2 of the electronic device shown in FIG. 4
  • the second support plate 1012 can be fixedly connected with the second housing 3 .
  • the first casing 2 and the second casing 3 relative to the rotating shaft mechanism 1 , they can drive the supporting plates on the corresponding sides to rotate.
  • a first slot 201 may be provided at the end of the first housing 2 facing the second housing 3 , and at the end of the second housing 3 toward The end of the first housing 2 is provided with a second slot 301 . Then the first support plate 1011 can be located in the first slot 201 and fixedly connected with the slot wall of the first slot 201 . The second support plate 1012 can be located in the second slot 301 and fixedly connected with the slot wall of the second slot 301 .
  • the first slot 201 and the second slot 301 are arranged in opposition so that between the first shell 2 and the second shell 3 Form a receptacle. It can be seen from FIG. 2 that when the electronic device is in an unfolded state, the entire rotating shaft mechanism 1 can be hidden in the accommodating portion.
  • the first support plate 1011 and the second support plate 1012 can support the flexible display screen.
  • FIG. 5 shows the structure of the spindle module 101 when the electronic device is in the unfolded state.
  • the first support plate 1011 and the second support plate 1012 are relatively close together, and the gap between the two support plates is small, so as to form a flat and continuous support surface through connection, so that the flexible display screen can be stably supported. effect. It can prevent the flexible display screen from collapsing at the rotating shaft mechanism 1, so as to reduce the deformation of the flexible display screen and improve its structural reliability.
  • FIG. 6 is an A-direction view of the spindle module 101 shown in FIG. 5 .
  • the spindle module 101 may further include a base 1013 , which may serve as a supporting structure for the entire spindle module 101 .
  • the first support plate 1011 and the second support plate 1012 mentioned above can be located on both sides of the base 1013, and are respectively connected to the base 1013 in rotation.
  • FIG. 7, which is the spindle mold shown in FIG. Schematic diagram of the exploded structure of Group 101.
  • the base 1013 may be provided with a first sliding slot 10131 and a second sliding slot 10132, wherein the first sliding slot 10131 and the second sliding slot 10132 may be circular arc slots.
  • first sliding groove 10131 and the second sliding groove 10132 may be oppositely arranged.
  • first chute 10131 and the second chute 10132 are arranged alternately, which can effectively reduce the size of the base 1013 along the direction from the first support plate 1011 to the second support plate 1012, so as to facilitate the realization of the rotating shaft mechanism 1 miniaturization design.
  • the first sliding arm 10111 may be provided on the side surface of the first support plate 1011 facing the base 1013 , and the side surface of the second support plate 1012 facing the base 1013 may be provided with There is a second sliding arm 10121.
  • the first sliding arm 10111 can be accommodated in the first sliding slot 10131 , and the first sliding arm 10111 can slide along the first sliding slot 10131 toward or away from the second support plate 1012 .
  • the second sliding arm 10121 can be accommodated in the second sliding slot 10132 , and the second sliding arm 10121 can slide along the first sliding slot 10131 toward or away from the first support plate 1011 .
  • first support plate 1011 and the second support plate 1012 are rotationally connected to the base 1013 by means of a virtual axis matched with a sliding arm and a slide groove, which can effectively improve the structural compactness of the rotating shaft mechanism 1 .
  • a first avoidance opening 10112 is opened on the first support plate 1011
  • a second escape opening 10122 is opened on the second support plate 1012 .
  • the first avoidance opening 10112 can provide an avoidance space for the sliding of the second sliding arm 10121
  • the second escape opening 10122 can provide an avoidance space for the sliding of the first sliding arm 10111, thereby avoiding the first supporting plate 1011 and the second supporting plate.
  • Mutual interference of the motion of the plate 1012 .
  • the first sliding arm 10111 is accommodated in the second escape opening 10122, and the second sliding arm 10121 is accommodated in the first escape opening 10112, so that the first The support plate 1011 and the second support plate 1012 can form a continuous and flat support surface for supporting the flexible display screen.
  • the spindle module 101 may further include a first gear connecting rod 1014 and a second gear connecting rod 1015 , and one end of the first gear connecting rod 1014 facing the second gear connecting rod 1015 is provided with a second gear connecting rod 1015 .
  • a gear 10141, the end of the second gear connecting rod 1015 facing the first gear connecting rod 1014 is provided with a second gear 10151, the first gear 10141 and the second gear 10151 are in transmission connection.
  • FIG. 8 is a schematic structural diagram of the base 1013 provided by the present application.
  • a first installation hole 10133 and a second installation hole 10134 are provided at the end of the base 1013 , and the opening direction of the first installation hole 10133 and the second installation hole 10134 may be the same as the extension direction of the rotating shaft mechanism 1 .
  • both the first installation hole 10133 and the second installation hole 10134 are opened in a direction away from the first sliding slot 10131 and the second sliding slot 10132 .
  • the first gear 10141 can be installed in the first installation hole 10133
  • the second gear 10151 can be installed in the second installation hole 10134 .
  • first gear 10141 can rotate in the first mounting hole 10133
  • second gear 10151 can rotate in the second mounting hole 10134, thereby realizing the connection between the first gear connecting rod 1014 and the second gear connecting rod 1015 and the base 1013. Turn to connect.
  • the first support plate 1011 is also provided with a first track groove 10113
  • the second support plate 1012 is also provided with a second track groove 10123
  • the opening direction of the first track groove 10113 is the same as the opening direction of the second track groove 10113.
  • the opening direction of the first mounting hole 10133 is the same
  • the opening direction of the second track groove 10123 is the same as that of the second mounting hole 10134 .
  • the end of the first gear connecting rod 1014 facing away from the second gear connecting rod 1015 is provided with a first guiding portion 10142 , the first guiding portion 10142 is inserted into the first track groove 10113 and can slide along the first track groove 10113 .
  • the end of the second gear connecting rod 1015 facing away from the first gear connecting rod 1014 is provided with a second guiding portion 10152 , the second guiding portion 10152 is inserted in the second track groove 10123 and can slide along the second track groove 10123 .
  • first track groove 10113 and the second track groove 10123 are not limited, and they can be strip-shaped grooves as an example, as long as the first support plate 1011 and the second support plate 1011 can be connected.
  • first support plate 1011 can drive the first guide part 10142 to slide along the first track groove 10113 according to the set track
  • the second support plate 1012 can drive the second guide part 10152 to slide along the second track groove. 10123 Just slide according to the set track.
  • this application does not limit the specific structural forms of the first guide part 10142 and the second guide part 10152.
  • the first guide part 10142 and the second guide part 10152 can be pin shafts, and one end of the pin shaft is fixed On the gear connecting rod, the other end is passed through the corresponding track groove.
  • fasteners such as nuts can be provided at the end of the pin shaft passing through the track groove and away from the gear connecting rod.
  • FIG. 9a shows the relative positional relationship of the first support plate 1011 , the second support plate 1012 , the first gear link 1014 and the second gear link 1015 in the unfolded state.
  • FIG. 9b shows the relative position relationship of the first support plate 1011, the second support plate 1012, the first gear connecting rod 1014 and the second gear connecting rod 1015 in the intermediate state.
  • the first support plate 1011 rotates relative to the base 1013 in a direction away from the second support plate 1012, which can drive the first gear connecting rod 1014 relative to the base
  • the base 1013 rotates in the same direction, so that the second gear connecting rod 1015 rotates relative to the base 1013 in a direction opposite to that of the first gear connecting rod 1014 .
  • the rotation of the second gear link 1015 can drive the second support plate 1012 to rotate relative to the base 1013 in a direction away from the first support plate 1011, thereby realizing the synchronous rotation of the first support plate 1011 and the second support plate 1012, and the second support plate
  • the rotation direction of the plate 1012 is opposite to the rotation direction of the first support plate 1011 . It can be seen from Fig. 9a and Fig. 9b that in the process from the expanded state to the closed state, a containment space can be formed between the first support plate 1011, the second support plate 1012 and the base 1013, which can be used to accommodate The foldable part of the flexible display, which reduces the pressure on the flexible display to reduce the risk of damage to the flexible display.
  • the first support plate 1011 can be fixedly connected to the first casing 2 of the electronic device, and the second support plate 1012 can be fixedly connected to the second casing 3 of the electronic device, the above-mentioned solution provided by this application is adopted , the synchronous rotation of the first casing 2 and the second casing 3 can be realized. It can be understood that the synchronous rotation of the first housing 2 and the second housing 3 can drive the synchronous movement of the part of the flexible display screen fixed with the first housing 2 and the second housing 3, which can effectively The uniformity of force applied to various parts of the flexible display is improved, thereby preventing the flexible display from being pulled or squeezed, so as to improve the structural reliability of the flexible display.
  • the spindle module 101 can also include a first gear shaft 1016 and a second gear shaft 1017, wherein the first gear 10141 is sleeved on the first gear shaft 1016, and the first gear 10141 can be connected with the first gear Shaft 1016 is rotationally connected.
  • the second gear 10151 is sheathed on the second gear shaft 1017 , and the second gear 10151 is rotatably connected to the second gear shaft 1017 . This can effectively improve the stability of the movement of the first gear connecting rod 1014 and the second gear connecting rod 1015 .
  • FIG. 10 is a schematic diagram of a transmission mode of the first gear connecting rod 1014 and the second gear connecting rod 1015 provided by an embodiment of the present application.
  • a driven gear 1018 may also be provided between the first gear 10141 and the second gear 10151, the number of the driven gears 1018 may be an even number, and the first gear 10141 and the second gear 10151 Through the transmission connection of the driven gear 1018, the rotation stability of the first gear connecting rod 1014 and the second gear connecting rod 1015 is improved.
  • FIG. 11 is a cross-sectional view at B-B of the main shaft module 101 shown in FIG. 6 .
  • first support plate 1011 when the first support plate 1011 rotates relative to the base 1013 , it can drive the first gear connecting rod 1014 to rotate relative to the base 1013 .
  • the first gear 10141 rotates with the first gear connecting rod 1014, drives the driven gear 1018 to rotate, and transmits the rotational force to the second gear 10151, so that the second gear connecting rod 1015 is connected to the first gear relative to the base 1013.
  • Rod 1014 rotates in the opposite direction.
  • the rotation of the second gear link 1015 drives the second support plate 1012 to rotate relative to the base 1013, and the rotation direction of the second support plate 1012 is opposite to the rotation direction of the first support plate 1011, thereby realizing the first support plate 1011 and the second support plate Synchronous rotation of the plates 1012.
  • the base 1013 may also be provided with a gear box 10135 , and the driven gear 1018 may be installed in the gear box 10135 .
  • the first mounting hole 10133 and the second mounting hole 10134 communicate with the gear box 10135 so as to facilitate the transmission connection between the first gear 10141 , the second gear 10151 and the driven gear 1018 .
  • the gear box 10135 By setting the gear box 10135 and installing the driven gear 1018 in the gear box 10135, it is convenient to realize the storage of lubricating oil, so that each adjacent driven gear 1018, the driven gear 1018 and the first gear 10141 and the driven gear 10141 can be realized.
  • the main shaft module 101 may also include an intermediate gear shaft 1019, each driven gear 1018 may be sleeved on one intermediate gear shaft 1019, and the driven gear 1018 It can be rotatably connected with the intermediate gear shaft 1019.
  • the base 1013 can also be provided with a mounting groove 10136, and the mounting groove 10136 can be located between the first sliding groove 10131 (the second sliding groove 10132) and the first mounting hole 10133 Between (the second installation hole 10134 ), the first gear shaft 1016 , the second gear shaft 1017 and the intermediate gear shaft 1019 can be installed in the installation groove 10136 , so that the structure of the spindle module 101 is more compact.
  • the main shaft module 101 may further include a conjoined snap ring 1020 , the first gear shaft 1016 , the second gear shaft 1017 , and the intermediate gear shaft 1019 are away from the first gear connecting rod 1014 and the second gear connecting rod 1015 .
  • connection between the first gear shaft 1016, the second gear shaft 1017 and the intermediate gear shaft 1019 and the conjoined snap ring 1020 can be carried out through a screw connection, that is, the conjoined snap ring 1020 corresponds to the first gear shaft 1016,
  • the positions of the second gear shaft 1017 and the intermediate gear shaft 1019 are respectively provided with threaded holes, and at the same time, the ends of the first gear shaft 1016, the second gear shaft 1017 and the intermediate gear shaft 1019 are provided with external threads, thereby facilitating the realization of the first gear.
  • the connection between the shaft 1016 , the second gear shaft 1017 and the intermediate gear shaft 1019 and the conjoined snap ring 1020 .
  • the integrated snap ring 1020 can also be installed in the installation groove 10136, and the integrated snap ring 1020 can be away from the first installation hole 10133 of the installation groove 10136 (the second The groove walls of the mounting hole 10134) abut against each other.
  • the integrated snap ring 1020 and the groove wall of the installation groove 10136 can be bonded or fastened. Fix it by locking it.
  • the unfolding or closing process of the electronic device applied with the rotating shaft mechanism 1 provided in the present application is usually realized by applying a rotational force to the first casing 2 and/or the second casing 3 .
  • the spindle module 101 provided in this application can also generate a certain damping force.
  • the first gear connecting rod 1014 can also be provided with a first cam structure 10143, and the first cam structure 10143 is coaxially arranged with the first gear 10141.
  • the first cam structure 10143 is arranged on Outside the base 1013.
  • the second gear link 1015 can also be provided with a second cam structure 10153 coaxially arranged with the second gear 10151 , and the second cam structure 10153 is arranged outside the base 1013 .
  • the first cam structure 10143 and the first gear 10141 can be integrally formed, and the second cam structure 10153 and the second gear 10151 can be integrally formed, so that the first gear connecting rod 1014 and the first gear connecting rod 1014 can be improved. Structural reliability of the second gear link 1015.
  • the spindle module 101 may further include a conjoined cam 1021 , and the conjoined cam 1021 may include a third cam structure 10211 and a fourth cam structure 10212 .
  • the third cam structure 10211 can be arranged opposite to the first cam structure 10143, and the third cam structure 10211 can be sleeved on the first gear shaft 1016.
  • the first gear shaft 1016 can be threaded on the first gear 10141,
  • the fourth cam structure 10212 can be arranged opposite to the second cam structure 10153, and the fourth cam structure 10212 can be sleeved on the second gear shaft 1017, at this time the second gear shaft 1017 It can pass through the second gear 10151 , the second cam structure 10153 and the fourth cam structure 10212 at the same time.
  • the cam structure includes a plurality of protrusions and depressions.
  • the electronic device can be kept at the corresponding rotation position without external force when it is closed or unfolded to a certain angle; When it reaches a larger angle (for example, greater than or equal to 150°), it can continue to expand to the flattened state without external force; Continue to move in the closing direction until it is completely closed. In this way, the user's individual requirements can be met.
  • a larger angle for example, greater than or equal to 150°
  • FIG. 12 shows the cooperation relationship between the first cam structure 10143 , the second cam structure 10153 and the conjoined cam 1021 provided by an embodiment of the present application.
  • the spindle module 101 may further include an elastic structural member 1022 , which may be used to press the first cam structure 10143 and the second cam structure 10153 toward the integrated cam 1021 .
  • the elastic structural member 1022 can be located between the conjoined snap ring 1020 and the first gear 10141 and the second gear 10151, and the elastic structural member 1022 is connected to the conjoined snap ring 1020 and the first gear 10141 and the second gear respectively.
  • the specific arrangement form of the elastic structural member 1022 is not limited, it can be a spring as an example, there can be multiple elastic structural members 1022, and at least one elastic structural member 1022 can be sleeved on the first gear shaft 1016 , at least one elastic structural member 1022 can be sleeved on the second gear shaft 1017 .
  • an elastic structural member 1022 can also be sleeved on the intermediate gear shaft 1019, so as to provide sufficient compression between the first cam structure 10143, the second cam structure 10153 and the connected cam 1021 force.
  • a nut or the like can also be provided on the side of the conjoined cam 1021 away from the base 1013.
  • the fastener can be arranged on the first gear shaft 1016 and the second gear shaft 1017, and be locked with the first gear shaft 1016 and the second gear shaft 1017, so that the conjoined cam 1021 is limited to the first gear shaft 1016 and second gear shaft 1017 .
  • the elastic structural member 1022 can be realized by adjusting the degree of tightening between the first gear shaft 1016, the second gear shaft 1017 and the intermediate gear shaft 1019 and the conjoined snap ring 1020.
  • the adjustment of the deformation amount so as to realize the adjustment of the pressing force between the first cam structure 10143, the second cam structure 10153 and the conjoined cam 1021, so as to achieve the purpose of adjusting the damping force during the rotation of the main shaft module 101 .
  • the modules used to realize synchronous rotation in the main shaft module 101 and the modules providing damping force can be integrated into one, which can effectively simplify the structure of the main shaft module 101, and
  • the structure of the spindle module 101 can be made more compact. Therefore, it is beneficial to reduce the space occupied by the spindle module 101 in the rotating shaft mechanism 1, so that more functional modules can be arranged in the rotating shaft mechanism 1, so as to facilitate the realization of the multifunctional design of the electronic equipment using the rotating shaft mechanism 1 .
  • the rotating shaft mechanism 1 when the rotating shaft mechanism 1 has a plurality of spindle modules 101 , the plurality of spindle modules 101 can be arranged at intervals. In order to reduce the gap between two adjacent spindle modules 101 , the rotating shaft mechanism 1 can form a relatively complete supporting surface.
  • FIG. 13 is a schematic structural diagram of a rotating shaft mechanism 1 provided by an embodiment of the present application.
  • the rotating shaft mechanism 1 provided in the present application may further include a cover plate, which may be arranged between two adjacent spindle modules 101 , and the cover plate includes a first sub-cover plate 1023 and a second sub-cover plate 1024 .
  • the first sub-cover 1023 is rotatably connected to the base 1013, and the first sub-cover 1023 is fixedly connected to the first support plate 1011, so as to form a continuous connection between the first sub-cover 1023 and the first support plate 1011. And flat support surface.
  • the second sub-cover 1024 is rotatably connected to the base 1013, and the second sub-cover 1024 is fixedly connected to the second support plate 1012, so as to be connected between the second sub-cover 1024 and the second support plate 1012 Form a continuous and flat support surface.
  • first support plate 1011 rotates relative to the base 1013, it can drive the first sub-cover 1023 to rotate synchronously, and when the second support plate 1012 rotates relative to the base 1013, it can drive the second sub-cover 1024 synchronous rotation.
  • the electrical connection of the components between the two housings can be realized through cables passing through the rotating shaft mechanism 1 .
  • the cables used to connect the devices of the two housings can pass through the shaft mechanism 1 in the area covered by the cover plate, so as to avoid interference between the cables and the spindle module 101 , the cables can also be hidden in the area covered by the cover plate, so as to improve the aesthetic appearance of the rotating shaft mechanism 1 .
  • the rotating shaft mechanism 1 may further include a decorative cover 1025 in addition to the above structure.
  • the decorative cover 1025 has an accommodating groove 10251.
  • the connection method can be, but not limited to, fastened connection by screws or bolts.
  • the surface of the decorative cover 1025 can be used as the appearance surface of the rotating shaft mechanism 1 to help improve the appearance of the electronic device.

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Abstract

本申请提供了一种转轴机构及电子设备。转轴机构(1)包括主轴模组(101)，主轴模组(101)包括基座(1013)、第一支撑板(1011)、第二支撑板(1012)、第一齿轮连杆(1014)、第二齿轮连杆(1015)、弹性结构件(1022)和连体凸轮(1021)。第一支撑板(1011)和第二支撑板(1012)与基座(1013)转动连接。第一齿轮连杆(1014)和第二齿轮连杆(1015)与基座(1013)的端部转动连接，第一齿轮连杆(1014)和第二齿轮连杆(1015)通过相啮合的齿轮传动连接。另外，第一齿轮连杆(1014)的背离第二齿轮连杆(1015)的一端与第一支撑板(1011)滑动连接。第二齿轮连杆(1015)的背离第一齿轮连杆(1014)的一端与第二支撑板(1012)滑动连接。第一齿轮连杆(1014)和第二齿轮连杆(1015)可分别设置有凸轮结构，弹性结构件(1022)可将两个齿轮连接杆的凸轮结构压向连体凸轮(1021)。采用本申请的方案，可实现第一支撑板和第二支撑板的同步转动，从而可降低柔性显示屏损坏的风险。

Description

一种转轴机构及电子设备
相关申请的交叉引用
本申请要求在2021年10月29日提交中国专利局、申请号为202111269091.5、申请名称为“一种转轴机构及电子设备”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
本申请涉及电子设备技术领域，尤其涉及一种转轴机构及电子设备。
背景技术
随着柔性显示屏技术的逐渐成熟，推动电子设备的显示方式发生了非常大的变化，可折叠柔性屏手机、可折叠柔性屏平板电脑，以及具有可折叠柔性屏的可穿戴电子设备等是未来智能电子设备的一大重要演进方向。
由于柔性显示屏是可折叠电子设备中的关键部件，其具有连续可折叠的特征。通常情况下，在可折叠电子设备折叠的过程中，为避免使柔性显示屏受到拉扯或者挤压，就需要使柔性显示屏在随电子设备折叠的过程中，各处所受到的力较为均匀。
因此，如何使可折叠电子设备在折叠的过程中，能够避免对柔性显示屏造成拉扯或者挤压，以降低柔性显示屏损坏的风险，已成为了本领域技术人员亟待解决的一大难题。
发明内容
本申请提供了一种转轴机构及电子设备，以降低电子设备的柔性显示屏损坏的风险，延长其使用寿命，从而提高电子设备的可靠性。
第一方面，本申请提供了一种转轴机构，该转轴机构可以包括主轴模组，该主轴模组可以包括基座，该基座可作为整个主轴模组的支撑结构。另外，主轴模组还可以包括第一支撑板、第二支撑板、第一齿轮连杆和第二齿轮连杆，其中，第一支撑板和第二支撑板位于基座的相对的两侧，并且第一支撑板和第二支撑板均与基座转动连接。第一齿轮连杆和第二齿轮连杆与基座的端部转动连接，且第一齿轮连杆与第一支撑板位于基座的同侧，第二齿轮连杆与第二支撑板位于基座的同侧。第一齿轮连杆的朝向第二齿轮连杆的一端具有同轴设置的第一齿轮和第一凸轮结构，第二齿轮连杆的朝向第一齿轮连杆的一端具有同轴设置的第二齿轮，第一齿轮和第二齿轮可以相啮合，以实现二者的传动连接。另外，在第一支撑板上还可以设置有第一轨迹槽，而第一齿轮连杆可以设置有第一导向部，该第一导向部可以插设于第一轨迹槽，且可沿第一轨迹槽滑动。相类似的，第二支撑板上可以设置有第二轨迹槽，第二齿轮连杆可以设置有第二导向部，该第二导向部插设于第二轨迹槽，且可沿第二轨迹槽滑动。
在本申请中，主轴模组还可以包括连体凸轮，该连体凸轮设置有第二凸轮结构和第四凸轮结构，第三凸轮结构与第一凸轮结构相对设置，第四凸轮结构与第二凸轮结构相对设置。另外，弹性结构件可位于第一凸轮结构和第二凸轮结构的背离连体凸轮的一侧，且弹 性结构件积蓄的弹性力可将第一凸轮结构和第二凸轮结构压向连体凸轮，从而使第一凸轮结构与第三凸轮结构，第二凸轮结构与第四凸轮结构紧密配合。这样，可在第一齿轮连杆和第二齿轮连杆相对基座转动的过程中，使第一凸轮结构和第三凸轮结构，第二凸轮结构和第四凸轮结构相互配合，以在不同的转动位产生相应的阻尼力，从而为用户提供明显的转动手感，以提升用户体验。另外，在不同的转动位产生的阻尼力还可以使第一齿轮连杆和第二齿轮连杆悬停在没有外力的作用下停止运动，从而使第一支撑板和第二支撑板悬停在对应的转动位，其在应用于电子设备时，可满足用户的个性化的使用要求。
采用本申请提供的转轴机构，在第一支撑板相对基座转动时，可使第一导向部沿着第一轨迹槽滑动，从而带动第一齿轮连杆绕基座转动。又因为第一齿轮连杆和第二齿轮连杆通过第一齿轮和第二齿轮传动连接，则第二齿轮连杆可对第一齿轮连杆同步转动，此时，第二导向部可沿第二轨迹槽滑动，从而可带动第二支撑板相对基座转动。这样，可实现第一支撑板和第二支撑板的同步转动。在将该转轴机构应用于电子设备时，第一支撑板可与电子设备的一个壳体固定连接，第二支撑板可与电子设备的另一个壳体固定连接，则第一支撑板和第二支撑板的同步转动，可实现电子设备的两个壳体的同步转动，从而可使固定在两个壳体上的柔性显示屏的各处的受力较为均匀，其可避免柔性显示屏收到拉扯或者挤压，以有利于降低柔性显示屏损坏的风险，从而提高柔性显示屏的结构可靠性。
在本申请一个可能的实现方式中，主轴模组还可以包括第一齿轮轴和第二齿轮轴。其中，第一齿轮轴穿设于第一齿轮、第一凸轮结构和第三凸轮结构，并且第一齿轮连杆可与该第一齿轮轴转动连接。相类似的，第二齿轮轴穿设于第二齿轮、第二凸轮结构和第四凸轮结构，并且第二齿轮连杆可与该第二齿轮轴转动连接。第一齿轮连杆和第二齿轮连杆可绕对应的齿轮轴转动，从而可提高第一齿轮连杆和第二齿轮连杆转动的可靠性，以有利于提高整个主轴模组运动的稳定性。
另外，主轴模组还可以包括连体卡环。其中，第一齿轮轴背离第一齿轮连杆的端部可与连体卡环螺纹联接。第二齿轮轴的背离第二齿轮连杆的端部可与连体卡环螺纹联接。这时，弹性结构件可位于连体卡环与第一齿轮和第二齿轮之间，并且弹性结构件还可以分别与连体卡环，以及第一齿轮和第二齿轮弹性抵接，从而使弹性结构件能够将第一凸轮结构和第二凸轮结构压向连体凸轮。
可以理解的是，第一凸轮结构与第三凸轮结构，第二凸轮结构与第四凸轮结构配合的紧密性，对于相配的凸轮结构之间产生的阻尼力有着重要的影响。而该配合的紧密程度，可通过弹性结构件对于第一凸轮结构和第二凸轮结构压向连体凸轮的压紧力进行调节。又因为，第二齿轮轴的背离第二齿轮连杆的端部可与连体卡环螺纹联接，第二齿轮轴的背离第二齿轮连杆的端部可与连体卡环螺纹联接，因此可通过对第一齿轮轴和第二齿轮轴与连体卡环之间的旋紧程度的调整，来实现对弹性结构件的形变量的调节，从而实现对弹性结构件对于第一凸轮结构和第二凸轮结构压向连体凸轮的压紧力的调节。
在本申请中，在具体设置弹性结构件时，其可以但不限于为弹簧。该弹性结构件可为多个，其中，至少一个弹性结构件可套设于第一齿轮轴，该至少一个弹性结构件产生的弹性作用力可施加于第一齿轮。至少一个弹性结构件可套设于第二齿轮轴，该至少一个弹性结构件产生的弹性作用力可施加于第二齿轮。
上述连体卡环、弹性结构件、第一齿轮轴和第二齿轮轴等结构均可安装于基座，在本申请一个可能的实现方式中，基座还可以设置有容置槽。则连体卡环、弹性结构件、第一 齿轮轴和第二齿轮轴等结构均可容置于该容置槽。另外，连体卡环还可与容置槽的槽壁相抵接，以使连体卡环与基座可靠的连接。
为了实现第一支撑板和第二支撑板与基座的转动连接，在本申请一个可能的实现方式中，可使基座设置有第一滑槽和第二滑槽，同时在第一支撑板朝向基座的一侧表面设置有第一滑臂，第二支撑板的朝向基座的一侧表面设置有第二滑臂。其中，第一滑臂可容置于第一滑槽，且第一滑臂可沿第一滑槽向靠近或者背离第二支撑板的方向滑动。第二滑臂可容置于第二滑槽，且第二滑臂可沿第二滑槽向靠近或者背离第二支撑板的方向滑动。这样，第一支撑板和第二支撑板均可通过滑臂与滑槽相配合的虚拟轴的方式来实现转动连接，其可使主轴模组的结构较为紧凑，从而有利于实现主轴模组的小型化设计，以使主轴模组在转轴机构中占用的空间较小，以便于在转轴机构中设置更多的功能模块。
另外，在具体设置第一滑槽和第二滑槽时，可以在沿第一支撑板和第二支撑板的方向上，使第一滑槽和第二滑槽交错设置，以使主轴模组的结构更为紧凑。在本申请另外一些可能的实现方式中，第一滑槽和第二滑槽还可以相对设置。
在本申请一个可能的实现方式中，主轴模组还可以包括从动齿轮，该从动齿轮为偶数个，且该偶数个从动齿轮位于第一齿轮和第二齿轮之间，从而使第一齿轮和第二齿轮通过该偶数个从动齿轮传动连接，以提高第一齿轮和第二齿轮传动的稳定性，从而有利于提高主轴模组运动的稳定性。
主轴模组还可以包括中间齿轮轴，上述从动齿轮可套设于该中间齿轮轴，并且从动齿轮可与中间齿轮轴转动连接，从而可提高从动齿轮转动的可靠性。
在本申请中，基座还可以设置有齿轮箱，各个从动齿轮可安装于该齿轮箱。该齿轮箱可对于为从动齿轮添加的润滑油进行储存，以有利于减小各个传动连接的从动齿轮的接触面的磨损。
另外，基座上还可以设置有第一安装孔和第二安装孔，第一安装孔和所述第二安装孔的开口方向可与转轴机构的延伸方向相同。第一齿轮连杆的第一齿轮可安装于第一安装孔，第二齿轮连杆的第二齿轮可安装于第二安装孔。由于第一齿轮和第二齿轮可通过从动齿轮传动连接，则在本申请中，可使第一安装孔和第二安装孔与齿轮箱相连通。这样，可使齿轮箱内储存的润滑油用于供第一齿轮和第二齿轮润滑使用，以有利于减小从动齿轮与第一齿轮以及从动齿轮与第二齿轮的接触面的磨损，从而提高各个齿轮的结构可靠性。
在本申请中，转轴机构中可以包括多个上述的主轴模组，其具体可根据转轴机构的延伸长度进行设置。另外，当转轴机构包括多个主轴模组时，该多个主轴模组可间隔设置。为了减小各个主轴模组之间的缝隙，转轴机构还可以包括盖板，该盖板可位于相邻的两个主轴模组之间。该盖板可以包括第一子盖板和第二子盖板，其中，第一子盖板和第二子盖板与基座转动连接。第一子盖板可与第一支撑板位于基座的同侧，且第一子盖板与第一支撑板固定连接；第二子盖板可与第二支撑板位于基座的同侧，且第二子盖板与第二支撑板固定连接。这样可使第一子盖板与第一支撑板连接成平整且连续的支撑面，第二子盖板与第二支撑板连接形成平整且连续的支撑面，从而可在将该转轴机构应用于电子设备时，可实现对电子设备的柔性显示屏的稳定支撑。
第二方面，本申请还提供了一种电子设备，该电子设备包括第一壳体、第二壳体、柔性显示屏以及第一方面的转轴机构。其中，第一壳体和第二壳体分设于转轴机构的相对两侧，且第一支撑板与第一壳体固定连接，第二支撑板与第二壳体固定连接；柔性显示屏连 续覆盖于第一壳体、第二壳体和转轴机构，且柔性显示屏与第一壳体和第二壳体固定连接。
在本申请的电子设备中，由于转轴机构的第一支撑板和第二支撑板可同步转动，这样可实现电子设备的两个壳体的同步转动，从而可使固定在两个壳体上的柔性显示屏的各处的受力较为均匀，其可避免柔性显示屏收到拉扯或者挤压，以有利于降低柔性显示屏损坏的风险，从而提高柔性显示屏的结构可靠性。
在本申请一个可能的实现方式中，第一壳体的朝向第二壳体的端部设置有第一开槽，第二壳体的朝向第一壳体的端部设置有第二开槽。这样，在第一支撑板与第一壳体固定连接时，可使第一支撑板位于第一开槽，且第一支撑板与第一开槽的槽壁固定连接。而第二支撑板可位于第二开槽，且第二支撑板与第二开槽的槽壁固定连接。
另外，当电子设备处于展开状态时，第一开槽和第二开槽可相对合，以形成一个容置部，转轴机构可隐藏于该容置部内。这样，可使电子设备具有一体化设计的外观效果，以提高其外观美观性。
附图说明
图1为本申请一实施例提供的电子设备的结构示意图；
图2为本申请另一实施例提供的电子设备的结构示意图；
图3为本申请另一实施例提供的电子设备的结构示意图；
图4为本申请一实施例提供的电子设备的爆炸结构示意图；
图5为本申请一实施例提供的主轴模组的结构示意图；
图6为图5中所示的主轴模组的A向视图；
图7为图6所示的主轴模组的爆炸结构示意图；
图8为本申请一实施例提供的基座的结构示意图；
图9a为本申请另一实施例提供的主轴模组的结构示意图；
图9b为本申请另一实施例提供的主轴模组的结构示意图；
图10为本申请一实施例提供的第一齿轮连杆和第二齿轮连杆的传动方式示意图；
图11为图6中所示的主轴模组的B-B处的剖面图；
图12为本申请一实施例提供的第一凸轮结构、第二凸轮结构与连体凸轮的配合示意图；
图13为本申请另一实施例提供的转轴机构的结构示意图。
附图标记：
1-转轴机构；101-主轴模组；1011-第一支撑板；10111-第一滑臂；10112-第一避让口；
10113-第一轨迹槽；1012-第二支撑板；10121-第二滑臂；10122-第二避让口；
10123-第二轨迹槽；1013-基座；10131-第一滑槽；10132-第二滑槽；10133-第一安装孔；
10134-第二安装孔；10135-齿轮箱；10136-安装槽；
1014-第一齿轮连杆；10141-第一齿轮；10142-第一导向部；10143-第一凸轮结构；
1015-第二齿轮连杆；10151-第二齿轮；10152-第二导向部；10153-第二凸轮结构；
1016-第一齿轮轴；1017-第二齿轮轴；1018-从动齿轮；1019-中间齿轮轴；
1020-连体卡环；1021-连体凸轮；10211-第三凸轮结构；10212-第四凸轮结构；
1022-弹性结构件；1023-第一子盖板；1024-第二子盖板；1025-装饰盖；10251-容置槽；
2-第一壳体；2a-第一面；2b-第二面；201-第一开槽；
3-第二壳体；3a-第一面；3b-第二面；301-第二开槽。
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。该转轴机构可以但不限于应用于手机、掌上电脑(personal digital assistant，PDA)、笔记本电脑或平板电脑等可折叠的电子设备。在将本申请实施例提供的转轴机构应用于电子设备时，可参照图1，图1为本申请一实施例提供的电子设备的结构示意图。该电子设备除了包括转轴机构1外，还可以包括第一壳体2、第二壳体3及柔性显示屏(图1中未示出)。其中，第一壳体2和第二壳体3位于转轴机构1的两侧，且可绕转轴机构1转动。该电子设备在使用时，可根据不同的使用场景进行闭合及展开。在图1所示的实施例中，电子设备处于闭合状态，且图1展示了转轴机构1在电子设备处于闭合状态时与两个壳体之间的相对位置关系。此时，转轴机构1的表面、第一壳体2的第一面2a和第二壳体3的第一面3a可共同作为电子设备的外观面。其中，第一壳体2的第一面2a是指第一壳体2的背离柔性显示屏的表面，第二壳体3的第一面3a是指第二壳体3的背离柔性显示屏的表面。
另外，可参照图2，图2展示了电子设备处于展开状态时的结构示意图。值得一提的是，在图2中示出了第一壳体2的第二面2b和第二壳体3的第二面3b侧的结构。其中，第一壳体2的第二面2b是指第一壳体2的用于支撑柔性显示屏的表面，第二壳体3的第二面3b是指第二壳体3的用于支撑柔性显示屏的表面。柔性显示屏可连续覆盖于第一壳体2的第二面2b、第二壳体3的第二面3b以及转轴机构1，且柔性显示屏可与第一壳体2的第二面2b以及第二壳体3的第二面3b固定连接，其连接方式可以但不限于粘接。这样，在电子设备处于如图2所示的展开状态时，第一壳体2和第二壳体3可对柔性显示屏起到支撑的作用。
参照图3，图3展示了电子设备处于由展开状态到闭合状态，或者由闭合状态到展开状态的中间状态的结构示意图。在图3所示的状态下，第一壳体2的第二面2b和第二壳体3的第二面3b之间的夹角为大于0°且小于180°，示例性的可为150°。在第一壳体2和第二壳体3由图2所示的展开状态到图1所示的闭合状态，或者由图1所示的闭合状态到图2所示的展开状态的相对转动的过程中，柔性显示屏可随第一壳体2和第二壳体3进行折叠。
可以理解的是，该电子设备由图2所示的展开状态到图1所示的闭合状态，或者由图1所示的闭合状态到图2所示的展开状态的过程即为第一壳体2以及第二壳体3绕转轴机构1转动的过程。转轴机构1作为可折叠的电子设备中的一个关键性的功能部件，其可对应柔性显示屏的可折叠部分设置，故其在图2所示的展开状态下对于柔性显示屏的该可折叠部分的支撑，以及在图1所示的闭合状态下对于柔性显示屏的该可折叠部分的容纳均起着重要的作用。另外，转轴机构1的可靠的结构对于实现电子设备的运动过程的稳定性可起到重要的作用。为方便理解本申请实施例提供的转轴机构1，下面结合附图对其具体结构进行详细的说明。
以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本申 请的限制。如在本申请的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
参照图4，图4为图2中所示的电子设备的爆炸结构示意图。由图4可以看出，第一壳体2和第二壳体3位于转轴机构1的相对的两侧。可一并参照图2和图4，本申请实施例提供的转轴机构1可以包括主轴模组101，其中，主轴模组101的数量可为一个或者多个，其具体可根据转轴机构1在其延伸方向上的长度进行设置。在本申请中，转轴机构1的延伸方向与第一壳体2和第二壳体3绕转轴机构1转动的转轴的轴向相同。在图2和图4所示的实施例中，转轴机构1包括两个主轴模组101，该两个主轴模组101可以沿转轴机构1的延伸方向对称设置。
针对每个主轴模组101，在具体设置时，可参照图5，图5为本申请一个实施例的主轴模组101的结构示意图。在该实施例中，主轴模组101可以包括第一支撑板1011和第二支撑板1012。其中，第一支撑板1011可与上述图4中所示的电子设备的第一壳体2固定连接，第二支撑板1012可与第二壳体3固定连接。以在第一壳体2和第二壳体3相对转轴机构1转动的过程中，能够带动对应侧的支撑板转动。
可一并参照图4和图5，在本申请实施例中，可在第一壳体2的朝向第二壳体3的端部设置有第一开槽201，在第二壳体3的朝向第一壳体2的端部设置有第二开槽301。则第一支撑板1011可位于第一开槽201，且与该第一开槽201的槽壁固定连接。第二支撑板1012可位于第二开槽301，且与该第二开槽301的槽壁固定连接。
另外，可一并参照图2和图4，在电子设备处于展开状态时，第一开槽201和第二开槽301相对合设置，以在第一壳体2和第二壳体3之间形成一个容置部。由图2可以看出，在电子设备处于展开状态时，转轴机构1整体可隐藏于该容置部内。
在本申请中，第一支撑板1011和第二支撑板1012可对柔性显示屏起到支撑的作用，可继续参照图5，图5中展示了电子设备处于展开状态时主轴模组101的结构。此时，第一支撑板1011和第二支撑板1012相对合，两个支撑板之间的缝隙较小，以连接形成一平整且连续的支撑面，从而可对柔性显示屏起到平稳支撑的作用。其可避免柔性显示屏在转轴机构1处塌陷，以减小柔性显示屏的形变，提高其结构可靠性。
参照图6，图6为图5中所示的主轴模组101的A向视图。在本申请中，主轴模组101还可以包括基座1013，该基座1013可作为整个主轴模组101的支撑结构。前述的第一支撑板1011和第二支撑板1012可位于基座1013的两侧，且分别与基座1013转动连接，具体实施时，可以参照图7，图7为图6所示的主轴模组101的爆炸结构示意图。基座1013可设置有第一滑槽10131和第二滑槽10132，其中，第一滑槽10131和第二滑槽10132可为圆弧槽。另外，在沿第一支撑板1011到第二支撑板1012的方向，第一滑槽10131和第二滑槽10132可相对设置。或者，第一滑槽10131和第二滑槽10132交错设置，这样可有 效的减小基座1013在沿第一支撑板1011到第二支撑板1012的方向上的尺寸，以有利于实现转轴机构1的小型化设计。
可继续参照图7，在本申请中，第一支撑板1011的朝向基座1013的一侧表面可设置有第一滑臂10111，第二支撑板1012的朝向基座1013的一侧表面可设置有第二滑臂10121。其中，第一滑臂10111可容置于第一滑槽10131，且第一滑臂10111可沿第一滑槽10131向靠近或者背离第二支撑板1012的方向滑动。第二滑臂10121可容置于第二滑槽10132，且第二滑臂10121可沿第一滑槽10131向靠近或者背离第一支撑板1011的方向滑动。在本申请中，第一支撑板1011和第二支撑板1012与基座1013分别通过滑臂和滑槽相配合的虚拟轴的方式实现转动连接，其可有效的提高转轴机构1的结构紧凑性。
另外，可一并参照图5和图7，在本申请中，第一支撑板1011上开设有第一避让口10112，第二支撑板1012上开设有第二避让口10122。这样，第一避让口10112可为第二滑臂10121的滑动提供避让空间，第二避让口10122可为第一滑臂10111的滑动提供避让空间，从而可避免第一支撑板1011和第二支撑板1012的运动的相互干涉。另外，可继续参照图5，在转轴机构1处于展开状态时，第一滑臂10111容置于第二避让口10122，第二滑臂10121容置于第一避让口10112，从而可使第一支撑板1011和第二支撑板1012能够形成用于支撑柔性显示屏的连续且平整的支撑面。
可继续参照图7，在本申请中，主轴模组101还可以包括第一齿轮连杆1014和第二齿轮连杆1015，第一齿轮连杆1014朝向第二齿轮连杆1015的一端设置有第一齿轮10141，第二齿轮连杆1015的朝向第一齿轮连杆1014的一端设置有第二齿轮10151，第一齿轮10141和第二齿轮10151可传动连接。
另外，参照图8，图8为本申请提供的基座1013的结构示意图。在基座1013的端部设置有第一安装孔10133和第二安装孔10134，该第一安装孔10133和第二安装孔10134的开口方向可与转轴机构1的延伸方向相同。在图8所示的实施例中，第一安装孔10133和第二安装孔10134均朝向背离第一滑槽10131和第二滑槽10132的方向开设。可一并参照图7和图8，在本申请中，第一齿轮10141可安装于第一安装孔10133，第二齿轮10151可安装于第二安装孔10134。另外，第一齿轮10141可在第一安装孔10133内转动，第二齿轮10151可在第二安装孔10134内转动，从而实现第一齿轮连杆1014和第二齿轮连杆1015与基座1013的转动连接。
可一并参照图6和图7，第一支撑板1011还设置有第一轨迹槽10113，第二支撑板1012还设置有第二轨迹槽10123，其中，第一轨迹槽10113的开口方向与第一安装孔10133的开口方向相同，第二轨迹槽10123的开口方向与第二安装孔10134的开口方向相同。第一齿轮连杆1014的背离第二齿轮连杆1015的端部设置有第一导向部10142，该第一导向部10142插设于第一轨迹槽10113，且可沿第一轨迹槽10113滑动。第二齿轮连杆1015的背离第一齿轮连杆1014的端部设置有第二导向部10152，该第二导向部10152插设于第二轨迹槽10123，且可沿第二轨迹槽10123滑动。
可以理解的是，在本申请中，不对第一轨迹槽10113和第二轨迹槽10123的具体形状进行限定，其示例性的可为条形槽，只要可以在第一支撑板1011和第二支撑板1012运动的过程中，能够使第一支撑板1011带动第一导向部10142沿第一轨迹槽10113按设定的轨迹滑动，使第二支撑板1012带动第二导向部10152沿第二轨迹槽10123按设定的轨迹滑动即可。另外，在本申请不对第一导向部10142和第二导向部10152的具体结构形式进行 限定，示例性的，第一导向部10142和第二导向部10152可为销轴，该销轴的一端固定于齿轮连杆，另一端穿设于对应的轨迹槽内。为避免销轴从对应的轨迹槽内脱落，可一并参照图6和图7，在销轴的穿设于轨迹槽，且背离齿轮连杆的端部可设置有螺母等紧固件。
由上述实施例的介绍可以知道，第一齿轮连杆1014与第二齿轮连杆1015通过第一齿轮10141和第二齿轮10151传动连接，又第一齿轮连杆1014与第一支撑板1011通过第一导向部10142和第一轨迹槽10113滑动连接，第二齿轮连杆1015与第二支撑板1012通过第二导向部10152和第二轨迹槽10123滑动连接。可一并参照图9a和图9b，图9a展示了在展开状态下，第一支撑板1011、第二支撑板1012、第一齿轮连杆1014和第二齿轮连杆1015的相对位置关系。图9b展示了在中间状态时，第一支撑板1011、第二支撑板1012、第一齿轮连杆1014和第二齿轮连杆1015的相对位置关系。在由图9a所示的展开状态到图9b所示的中间的过程中，第一支撑板1011相对基座1013向背离第二支撑板1012的方向转动，可带动第一齿轮连杆1014相对基座1013同向转动，从而使第二齿轮连杆1015相对基座1013朝与第一齿轮连杆1014相反的方向转动。第二齿轮连杆1015转动可带动第二支撑板1012相对基座1013向背离第一支撑板1011的方向转动，从而实现第一支撑板1011和第二支撑板1012的同步转动，且第二支撑板1012的转动方向与第一支撑板1011的转动方向相反。由图9a和图9b可以看出，在由展开状态到闭合状态的过程中，第一支撑板1011、第二支撑板1012和基座1013之间可形成一容屏空间，其可用于容置柔性显示屏的可折叠部分，从而可减小对柔性显示屏的挤压，以降低柔性显示屏损坏的风险。
值得一提的是，由于第一支撑板1011可与电子设备的第一壳体2固定连接，第二支撑板1012可以电子设备的第二壳体3固定连接，因此采用本申请提供的上述方案，可实现第一壳体2与第二壳体3的同步转动。可以理解的是，第一壳体2和第二壳体3的同步转动，可带动柔性显示屏的与第一壳体2和第二壳体3相固定的部分的同步运动，其可有效的提高柔性显示屏各处受力的均匀性，从而可避免柔性显示屏受到拉扯或者挤压，以提高柔性显示屏的结构可靠性。
可继续参照图7，主轴模组101还可以包括第一齿轮轴1016和第二齿轮轴1017，其中，第一齿轮10141套设于第一齿轮轴1016，且第一齿轮10141可与第一齿轮轴1016转动连接。第二齿轮10151套设于第二齿轮轴1017，且第二齿轮10151可与第二齿轮轴1017转动连接。这样可有效的提高第一齿轮连杆1014和第二齿轮连杆1015运动的稳定性。
参照图10，图10为本申请一实施例提供的第一齿轮连杆1014和第二齿轮连杆1015的传动方式示意图。在本申请该实施例中，第一齿轮10141和第二齿轮10151之间还可以设置有从动齿轮1018，该从动齿轮1018的数量可为偶数个，且第一齿轮10141和第二齿轮10151通过从动齿轮1018传动连接，从而提高第一齿轮连杆1014和第二齿轮连杆1015转动的稳定性。
可参照图11，图11为图6中所示的主轴模组101的B-B处的剖面图。在本申请该实施例中，在第一支撑板1011相对基座1013转动的过程中，可带动第一齿轮连杆1014相对基座1013转动。第一齿轮10141随第一齿轮连杆1014转动，带动从动齿轮1018转动，并将该转动力传递至第二齿轮10151，从而使第二齿轮连杆1015相对基座1013朝与第一齿轮连杆1014相反的方向转动。第二齿轮连杆1015转动带动第二支撑板1012相对基座1013转动，且第二支撑板1012的转动方向与第一支撑板1011的转动方向相反，从而实现第一支撑板1011和第二支撑板1012的同步转动。
可一并参照图8和图11，在本申请中，基座1013还可以设置有齿轮箱10135，从动齿轮1018可安装于该齿轮箱10135内。可以理解的是，上述第一安装孔10133和第二安装孔10134与该齿轮箱10135相连通，以便于实现第一齿轮10141、第二齿轮10151与从动齿轮1018的传动连接。通过设置齿轮箱10135，并将从动齿轮1018安装于齿轮箱10135内，可便于实现润滑油的储存，从而可实现各相邻的从动齿轮1018，从动齿轮1018与第一齿轮10141以及从动齿轮1018与第二齿轮10151的接触面之间的润滑，以降低各个从动齿轮1018、第一齿轮10141和第二齿轮10151磨损的风险，从而提高主轴模组101的结构的可靠性。
另外，在本申请中，可一并参照图7和图11，主轴模组101还可以包括中间齿轮轴1019，每个从动齿轮1018可套设于一个中间齿轮轴1019，且从动齿轮1018可与中间齿轮轴1019转动连接。可一并参照图7和图8，在本申请中，基座1013还可以设置有安装槽10136，该安装槽10136可位于第一滑槽10131(第二滑槽10132)与第一安装孔10133(第二安装孔10134)之间，第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019可安装于该安装槽10136内，以使主轴模组101的结构较为紧凑。
可继续参照图7，主轴模组101还可以包括连体卡环1020，第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019的背离第一齿轮连杆1014和第二齿轮连杆1015的端部可通过连体卡环1020连接。其中，第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019与连体卡环1020之间可以通过螺纹联接的方式进行连接，即在连体卡环1020上对应第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019的位置分别设置有螺纹孔，同时在第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019的端部设置有外螺纹，从而便于实现第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019与连体卡环1020的连接。可一并参照图6和图7，在本申请中，连体卡环1020也可以安装于安装槽10136内，且连体卡环1020可与安装槽10136的背离第一安装孔10133(第二安装孔10134)的槽壁相抵接。另外，在本申请一个可能的实施例中，为提高连体卡环1020与基座1013之间连接的可靠性，可将连体卡环1020与安装槽10136的槽壁通过粘接或者紧固件锁紧等方式进行固定。
由于应用有本申请提供的转轴机构1的电子设备的展开或者闭合的过程，通常是通过对第一壳体2和/或第二壳体3施加转动力来实现的。为了能够在第一壳体2和第二壳体3相对基座1013转动的过程中，使用户对电子设备的展开或闭合过程有较为明显的感受。本申请提供的主轴模组101还可以产生一定的阻尼力。具体实施时，可继续参照图7，第一齿轮连杆1014还可以设置有第一凸轮结构10143，该第一凸轮结构10143与第一齿轮10141同轴设置，另外，第一凸轮结构10143设置于基座1013之外。相类似的，第二齿轮连杆1015还可以设置有第二凸轮结构10153，该第二凸轮结构10153与第二齿轮10151同轴设置，且第二凸轮结构10153设置于基座1013之外。在本申请中，可使第一凸轮结构10143与第一齿轮10141为一体成型结构，使第二凸轮结构10153与第二齿轮10151为一体成型结构，从而可有利于提高第一齿轮连杆1014和第二齿轮连杆1015的结构可靠性。
另外，主轴模组101还可以包括连体凸轮1021，该连体凸轮1021可以包括第三凸轮结构10211和第四凸轮结构10212。其中，第三凸轮结构10211可与第一凸轮结构10143相对设置，且第三凸轮结构10211可套设于第一齿轮轴1016，此时第一齿轮轴1016可同时穿设于第一齿轮10141、第一凸轮结构10143和第三凸轮结构10211；第四凸轮结构10212可与第二凸轮结构10153相对设置，且第四凸轮结构10212可套设于第二齿轮轴1017，此 时第二齿轮轴1017可同时穿设于第二齿轮10151、第二凸轮结构10153和第四凸轮结构10212。值得一提的是，在本申请中，凸轮结构包括多个凸起部和凹陷部，当两个相对设置的凸轮结构中的一个凸轮结构的凸起部位于另一个凸轮结构的凹陷部内时，则两个凸轮结构相啮合，以阻碍两个凸轮结构之间的相对转动，从而形成阻尼力。而当两个相对设置的凸轮结构中的一个凸轮结构的凸起部与另一个凸轮结构的凸起部相接触时，则两个凸轮结构相抵接。
由此可见，两个相对设置的凸轮结构在相对转动的过程中，当其转动到设定的转动位，使两个凸轮结构相啮合时，可形成对应的阻尼力。从而可为用户在转动电子设备的过程中提供较为明显的感受，并且还可以避免电子设备的误开合，以提升用户体验。另外，通过对凸轮结构的凸起部和凹陷部的间距进行合理的设计，可使电子设备在闭合或者展开到一定角度时，能够在没有外力的作用下保持在对应的转动位；或者在展开到较大角度(例如大于等于150°)时，能够在没有外力作用下继续展开到展平状态；又或者，在闭合到较小角度(例如小于等于30°)时，能够在没有外力作用下继续向闭合的方向运动，直到完全闭合。从而可满足用户个性化的使用要求。
参照图12，图12展示了本申请一实施例提供的第一凸轮结构10143、第二凸轮结构10153与连体凸轮1021之间的配合关系。在本申请中，主轴模组101还可以包括弹性结构件1022，该弹性结构件1022可用于将第一凸轮结构10143和第二凸轮结构10153压向连体凸轮1021。具体实施时，弹性结构件1022可位于连体卡环1020与第一齿轮10141和第二齿轮10151之间，且该弹性结构件1022分别与连体卡环1020以及第一齿轮10141和第二齿轮10151弹性抵接，从而使该弹性结构件1022可积蓄沿连体卡环1020到第一齿轮10141和第二齿轮10151方向的弹性压紧力，以将第一凸轮结构10143以及第二凸轮结构10153压向连体凸轮1021。
在本申请中，不对弹性结构件1022的具体设置形式进行限定，其示例性的可为弹簧，弹性结构件1022可为多个，并且至少一个弹性结构件1022可套设于第一齿轮轴1016，至少一个弹性结构件1022可套设于第二齿轮轴1017。在本申请一些实施例中，在中间齿轮轴1019上也可以套设有弹性结构件1022，从而可为第一凸轮结构10143、第二凸轮结构10153与连体凸轮1021之间提供足够的压紧力。
可继续参照图12，在本申请中，为避免连体凸轮1021从第一齿轮轴1016以及第二齿轮轴1017上脱落，还可以在连体凸轮1021的背离基座1013的一侧设置螺母等紧固件，该紧固件可设置于第一齿轮轴1016和第二齿轮轴1017，并与第一齿轮轴1016和第二齿轮轴1017相锁紧，从而将连体凸轮1021限位于第一齿轮轴1016和第二齿轮轴1017。
由前述实施例的介绍可以知道，第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019均可与连体卡环1020螺纹联接。基于此，在本申请中，可通过对第一齿轮轴1016、第二齿轮轴1017以及中间齿轮轴1019与连体卡环1020之间的旋紧程度的调整，来实现对弹性结构件1022的形变量的调节，从而实现对第一凸轮结构10143、第二凸轮结构10153与连体凸轮1021之间的压紧力的调节，以达到对主轴模组101转动过程中的阻尼力进行调节的目的。
采用本申请提供的转轴机构1，在其主轴模组101中用于实现同步转动的模组，以及提供阻尼力的模组可集成为一个，其可有效的简化主轴模组101的结构，且可使主轴模组101的结构较为紧凑。从而有利于减小主轴模组101在转轴机构1中占用的空间，以便于 在转轴机构1中设置更多的功能模块，以有利于实现应用有该转轴机构1的电子设备实现功能多样化设计。
在本申请中，当转轴机构1具有多个主轴模组101时，该多个主轴模组101可间隔设置。为了减小相邻的两个主轴模组101之间的缝隙，以使转轴机构1能够形成较为完整的支撑面。可参照图13，图13为本申请一实施例提供的转轴机构1的结构示意图。本申请提供的转轴机构1还可以包括盖板，该盖板可设置于相邻的两个主轴模组101之间，且盖板包括第一子盖板1023和第二子盖板1024。其中，第一子盖板1023与基座1013转动连接，且第一子盖板1023与第一支撑板1011固定连接，以在第一子盖板1023与第一支撑板1011之间连接形成连续且平整的支撑面。相类似的，第二子盖板1024与基座1013转动连接，且第二子盖板1024与第二支撑板1012固定连接，以在第二子盖板1024与第二支撑板1012之间连接形成连续且平整的支撑面。这样，在第一支撑板1011相对基座1013转动的过程中，可带动第一子盖板1023同步转动，且第二支撑板1012相对基座1013转动的过程中，可带动第二子盖板1024同步转动。
另外，可以理解的是，由于电子设备的两个壳体内可以设置有电路板或者传感器等器件，而两个壳体之间的器件的电连接，可通过穿过转轴机构1的线缆来实现。在本申请该实施例中，这些用于连接两个壳体的器件的线缆可由盖板覆盖的区间穿过转轴机构1，从而可在避免线缆与主轴模组101之间的干涉的同时，还可以将线缆隐藏于盖板覆盖的区间，以提高转轴机构1的外观美观性。
在将本申请提供的转轴机构1应用于电子设备时，可以继续参照图4，转轴机构1除了可包括上述的结构外，还可以包括装饰盖1025。该装饰盖1025具有容置槽10251，在本申请中，由于基座1013可作为转轴机构1的支撑部件，则基座1013可容置于容置槽10251，且基座1013与容置槽10251固定连接，其连接方式可以但不限于为通过螺钉或者螺栓等紧固联接。另外，可参照图1，在电子设备处于闭合状态时，该装饰盖1025的表面可作为转轴机构1的外观面，以有利于提高电子设备的外观美观性。
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，其特征在于，包括主轴模组，所述主轴模组包括基座、第一支撑板、第二支撑板、第一齿轮连杆、第二齿轮连杆、弹性结构件和连体凸轮，其中：
    所述第一支撑板和所述第二支撑板位于所述基座的相对的两侧，且所述第一支撑板和所述第二支撑板与所述基座转动连接；所述第一支撑板设置有第一轨迹槽，所述第二支撑板设置有第二轨迹槽；
    所述第一齿轮连杆和所述第二齿轮连杆与所述基座的端部转动连接，所述第一齿轮连杆的朝向所述第二齿轮连杆的一端具有同轴设置的第一齿轮和第一凸轮结构，所述第一齿轮连杆的背离所述第二齿轮连杆的一端设置有第一导向部；所述第二齿轮连杆的朝向所述第一齿轮连杆的一端具有同轴设置的第二齿轮和第二凸轮结构，所述第二齿轮连杆的背离所述第一齿轮连杆的一端设置有第二导向部；
    所述第一齿轮和所述第二齿轮传动连接；所述第一导向部插设于所述第一轨迹槽，且可沿所述第一轨迹槽滑动；所述第二导向部插设于所述第二轨迹槽，且可沿所述第二轨迹槽滑动；
    所述连体凸轮设置有第三凸轮结构和第四凸轮结构，所述第三凸轮结构与所述第一凸轮结构相对设置；所述第四凸轮结构与所述第二凸轮结构相对设置；
    所述弹性结构件位于所述第一凸轮结构和所述第二凸轮结构的背离所述连体凸轮的一侧，且所述弹性结构件将所述第一凸轮结构和所述第二凸轮结构压向所述连体凸轮。
  2. 如权利要求1所述的转轴机构，其特征在于，所述主轴模组还包括第一齿轮轴和第二齿轮轴，所述第一齿轮轴穿设于所述第一齿轮、所述第一凸轮结构和所述第三凸轮结构，且所述第一齿轮连杆与所述第一齿轮轴转动连接；所述第二齿轮轴穿设于所述第二齿轮、所述第二凸轮结构和所述第四凸轮结构，且所述第二齿轮连杆与所述第二齿轮轴转动连接。
  3. 如权利要求2所述的转轴机构，其特征在于，所述主轴模组还包括连体卡环，所述第一齿轮轴背离所述第一齿轮连杆的端部与所述连体卡环螺纹联接；所述第二齿轮轴的背离所述第二齿轮连杆的端部与所述连体卡环螺纹联接；
    所述弹性结构件位于所述连体卡环与所述第一齿轮和所述第二齿轮之间，且所述弹性结构件分别与所述连体卡环，以及所述第一齿轮和所述第二齿轮弹性抵接。
  4. 如权利要求3所述的转轴机构，其特征在于，所述弹性结构件为多个，至少一个所述弹性结构件套设于所述第一齿轮轴，至少一个所述弹性结构件套设于所述第二齿轮轴。
  5. 如权利要求3或4所述的转轴机构，其特征在于，所述基座还设置有容置槽，所述连体卡环、所述弹性结构件、所述第一齿轮轴和所述第二齿轮轴容置于所述容置槽，所述连体卡环与所述容置槽的槽壁相抵接。
  6. 如权利要求1～5任一项所述的转轴机构，其特征在于，所述基座设置有第一滑槽和第二滑槽，所述第一支撑板的朝向所述基座的一侧设置有第一滑臂，所述第二支撑板的朝向所述基座的一侧设置有第二滑臂；
    所述第一滑臂容置于所述第一滑槽，且所述第一滑臂可沿所述第一滑槽向靠近或者背离所述第二支撑板的方向滑动；所述第二滑臂容置于所述第二滑槽，且所述第二滑臂可沿所述第二滑槽向靠近或者背离所述第一支撑板的方向滑动。
  7. 如权利要求6所述的转轴机构，其特征在于，在沿所述第一支撑板到所述第二支撑 板的方向上，所述第一滑槽与所述第二滑槽交错设置。
  8. 如权利要求1～7任一项所述的转轴机构，其特征在于，所述主轴模组还包括从动齿轮，所述从动齿轮为偶数个，所述从动齿轮位于所述第一齿轮和所述第二齿轮之间，所述第一齿轮和所述第二齿轮通过所述从动齿轮传动连接。
  9. 如权利要求8所述的转轴机构，其特征在于，所述主轴模组还包括中间齿轮轴，所述从动齿轮套设于所述中间齿轮轴，且所述从动齿轮与所述中间齿轮轴转动连接。
  10. 如权利要求8或9所述的转轴机构，其特征在于，所述基座还设置有齿轮箱，所述从动齿轮安装于所述齿轮箱。
  11. 如权利要求10所述的转轴机构，其特征在于，所述基座设置有第一安装孔和第二安装孔，所述第一安装孔和所述第二安装孔的开口方向与所述转轴机构的延伸方向相同；所述第一齿轮安装于所述第一安装孔，所述第二齿轮安装于所述第二安装孔，且所述第一安装孔和所述第二安装孔与所述齿轮箱相连通。
  12. 如权利要求1～11任一项所述的转轴机构，其特征在于，所述转轴机构包括多个所述主轴模组，多个所述主轴模组间隔设置；
    所述转轴机构还包括盖板，所述盖板位于相邻的两个所述主轴模组之间；所述盖板包括第一子盖板和第二子盖板，所述第一子盖板和所述第二子盖板与所述基座转动连接，且所述第一子盖板与所述第一支撑板固定连接，所述第二子盖板与所述第二支撑板固定连接。
  13. 一种电子设备，其特征在于，包括第一壳体、第二壳体、柔性显示屏以及如权利要求1～12任一项所述的转轴机构，其中：
    所述第一壳体和所述第二壳体分设于所述转轴机构的相对两侧，且所述第一支撑板与所述第一壳体固定连接，所述第二支撑板与所述第二壳体固定连接；
    所述柔性显示屏连续覆盖于所述第一壳体、所述第二壳体和所述转轴机构，且所述柔性屏与所述第一壳体和所述第二壳体固定连接。
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