WO2021077829A1 - 电子设备的转轴机构及电子设备 - Google Patents

电子设备的转轴机构及电子设备 Download PDF

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Publication number
WO2021077829A1
WO2021077829A1 PCT/CN2020/103967 CN2020103967W WO2021077829A1 WO 2021077829 A1 WO2021077829 A1 WO 2021077829A1 CN 2020103967 W CN2020103967 W CN 2020103967W WO 2021077829 A1 WO2021077829 A1 WO 2021077829A1
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WO
WIPO (PCT)
Prior art keywords
gear
rotating shaft
shaft
connecting portion
rotating
Prior art date
Application number
PCT/CN2020/103967
Other languages
English (en)
French (fr)
Inventor
罗洋
Original Assignee
华为技术有限公司
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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
Publication of WO2021077829A1 publication Critical patent/WO2021077829A1/zh

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    • 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
    • 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
    • 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
    • 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
    • H04M1/0249—Details of the mechanical connection between the housing parts or relating to the method of assembly
    • 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 technical field of electronic products, and in particular to a shaft mechanism of an electronic device and an electronic device.
  • the screen part and the host part are generally connected by a hinge mechanism, and the two rotate relative to each other to achieve the purpose of folding at any angle.
  • the rotating shaft mechanism used to realize the folding function mostly adopts a matching structure of double rotating shafts, and the appearance of the two shafts is seriously homogenized, and it is impossible to differentiate products.
  • some adopt multi-axis linkage but this kind of matching form has too many parts, and the cost is high.
  • the embodiments of the present application provide a rotating shaft mechanism of an electronic device and an electronic device. During the overturning process of the electronic device, the matching stability of the rotating shaft mechanism is better and the service life is increased.
  • a shaft mechanism of an electronic device including:
  • a first gear set the first gear set includes a first gear and a second gear that are meshed, the first gear and the second gear are respectively connected to the rotating shaft, and the first gear drives and the first gear
  • the rotating shaft connected with the gear rotates around the rotating shaft connected with the second gear to form a transmission group;
  • a second gear set, the second gear set includes a third gear and a fourth gear that are engaged, and the third gear and the fourth gear are respectively connected to the rotating shaft;
  • the third gear and the fourth gear mesh and rotate; and/or, the second gear set drives another transmission set to move.
  • the first gear set mentioned above realizes the rotation of the two gears in the transmission set to convert externally applied force into rotation between the rotating shafts, and the second gear set transmits the rotating force in the transmission set to the adjacent rotating shafts.
  • the matched gear set can move, so as to realize the transmission of rotating force, and drive each rotating shaft to rotate in different forms.
  • the coordination stability is good, and the stable performance of the folding of the electronic product is ensured.
  • the first gear set and the second gear set are arranged in a staggered manner;
  • the third gear is coaxial with one of the second gears, and the index circle of the third gear and the second gear coaxial with the third gear are different;
  • the fourth gear is coaxial with the other second gear, and the index circle of the fourth gear is different from the second gear coaxial with the fourth gear.
  • the third gear and the fourth gear can be meshed without meshing between the adjacent first gear sets, so as to realize the transmission of force between the transmission sets.
  • the first gear and the second gear have the same number of teeth and the same indexing circle
  • the third gear and the fourth gear have the same number of teeth and the same indexing circle
  • the index circle of the third gear is larger than the index circle of the first gear.
  • the other when one of the main unit or the display screen is driven to rotate during the folding of the electronic product, the other can also be rotated by a corresponding angle under the action of the rotating shaft mechanism.
  • the first gear is rotatably connected with the rotating shaft, and the second gear is fixedly connected with the rotating shaft;
  • the third gear and the fourth gear are respectively rotatably connected with the rotating shaft.
  • one of the rotating shafts in the transmission group can rotate around the other rotating shaft, and the meshing of the third gear and the fourth gear is used for the transmission of force between the transmission groups, which improves the stability of cooperation.
  • the rotating shaft mechanism further includes a first connecting member, and the first connecting member is fixedly connected to the rotating shaft connected to the meshing third gear and the fourth gear;
  • the first connecting member is used to transmit the movement of the first gear set to the second gear set.
  • the rotating shaft mechanism further includes a second connecting member, and in the transmission group, the second connecting member connects two adjacent rotating shafts;
  • the second connecting member is fixedly connected to one of the rotating shafts, and is rotatably connected to the other rotating shaft.
  • the second connecting member further includes a first sleeve and a second sleeve
  • the inner wall of the first sleeve is rotatably connected with the rotating shaft, the outer wall of the first sleeve is fixedly connected with the third gear, and the outer wall of the first sleeve is fixedly connected with the second connecting member ;
  • the inner wall of the second sleeve is rotatably connected with the rotating shaft, the outer wall of the second sleeve is fixedly connected with the fourth gear, and the outer wall of the second sleeve is fixedly connected with the second connecting member .
  • the rotating shaft mechanism further includes a torsion part
  • the torsion part is used to connect the two rotating shafts in the same transmission group, one end of the torsion part is fixedly connected with the rotating shaft provided with the first gear, and the other end is connected with the second gear provided
  • the rotating shaft is connected in rotation.
  • the rotating shaft includes a first rotating shaft, a second rotating shaft, and a third rotating shaft, and the third rotating shaft is located between the first rotating shaft and the second rotating shaft;
  • the third rotating shaft includes a plurality of third rotating shafts, and the plurality of third rotating shafts are sequentially arranged between the first rotating shaft and the second rotating shaft.
  • the rotating shaft mechanism further includes a first connecting portion and a second connecting portion
  • the number of rotation shafts is an odd number
  • the first connecting portion is fixedly connected to the first gear set
  • the second connecting portion is fixedly connected to the second gear set, so that the first connecting portion and the first gear set are fixedly connected to each other.
  • the rotation direction of the second connecting part is opposite.
  • the rotating shaft mechanism further includes a first connecting portion and a second connecting portion
  • the number of the rotating shafts is an even number, and the first connecting portion and the second connecting portion are both fixedly connected to the first gear set, so that the first connecting portion and the second connecting portion rotate in opposite directions .
  • the rotating shaft mechanism further includes a fifth gear, and the fifth gear is disposed at an end of the second gear set.
  • the fifth gear is used to transmit force between adjacent shafts at the same position.
  • the number of the rotating shafts is 4, and the angle between the first connecting portion and the axis of the first rotating shaft and the axis of the third rotating shaft is Is m, and the angle between the second connecting portion and the line between the axis of the second rotating shaft and the axis of the third rotating shaft is t;
  • the angle between the line between the axis of the first rotating shaft and the axis of the third rotating shaft and the line between the axis of the adjacent third rotating shaft is n, and the axis of the second rotating shaft
  • the angle between the line between the axis and the axis of the third rotating shaft and the line between the axis of the adjacent third rotating shaft is f;
  • the gear ratio of the first gear to the second gear in the transmission set is n:m
  • the third gear and the fourth gear have the same number of teeth
  • the first rotating shaft, the second rotating shaft and the third rotating shaft rotate to be on the same plane.
  • an electronic device including a first part and a second part, the first part and the second part are connected by a shaft mechanism, and the shaft mechanism is the shaft mechanism described above.
  • the rotating shaft mechanism provided by the present application includes: a rotating shaft; a first gear set, the first gear set includes a first gear and a second gear that are meshed, the first gear and the second gear are respectively connected to the rotating shaft, and the first gear drives and the second gear A gear-connected rotating shaft rotates around a rotating shaft connected with a second gear to form a transmission group; a second gear set, the second gear set includes a third gear and a fourth gear meshed, the third gear and the fourth gear are respectively connected to the rotating shaft Driven by the first gear set, the third gear and the fourth gear mesh and rotate; and/or, the second gear set drives another transmission set to move.
  • the present application also provides an electronic device, which includes a first part and a second part, and the rotation between the first part and the second part is connected by a rotating shaft mechanism, and the rotating shaft mechanism is the above-mentioned rotating shaft mechanism.
  • the electronic device has the same advantages as the rotating shaft mechanism, and will not be repeated here.
  • FIG. 1 is a schematic structural diagram of an electronic device in an opened state of 120 degrees according to an embodiment of the application
  • FIG. 2 is a schematic structural diagram of an electronic device in a 180-degree opened state according to an embodiment of the application
  • FIG. 3 is a schematic structural diagram of an electronic device in a 270-degree open state according to an embodiment of the application
  • FIG. 4 is a schematic structural diagram of an electronic device in a 360-degree state provided by an embodiment of the application
  • FIG. 5 is a schematic structural diagram of an electronic device in a closed state according to an embodiment of the application.
  • Fig. 6 is a schematic structural diagram of a shaft assembly provided by an embodiment of the application.
  • FIG. 7 is an exploded view of a shaft assembly provided by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a shaft mechanism provided by an embodiment of the application.
  • Figure 9 is a partial enlarged view of part A in Figure 8.
  • Fig. 10 is an exploded view of a shaft mechanism provided by an embodiment of the application.
  • FIG. 11 is a schematic diagram of the structure of a rotating shaft provided by an embodiment of the application.
  • Figure 12 is an exploded view of the torsion part in Figure 10;
  • Figure 13 is an exploded view of the driving part in Figure 10;
  • Figure 14 is an exploded view of a part of the first connector in Figure 10;
  • Figure 15 is an exploded view of a part of the second connector in Figure 10;
  • Figure 16 is an exploded view of the first gear set in Figure 10;
  • Figure 17 is a partial exploded view of the second gear set in Figure 10;
  • 18 is a simple schematic diagram of the gear assembly with the first connecting portion and the second connecting portion rotating in opposite directions when there are three rotating shafts;
  • 19 is a simple schematic diagram of the gear assembly with the first connecting portion and the second connecting portion rotating in opposite directions when there are four rotating shafts;
  • FIG. 20 is a positional relationship diagram of the first gear set in the closed state of the electronic device according to the embodiment of the application.
  • FIG. 21 is a diagram of the positional relationship of the gear assembly in the closed state of the electronic device provided by the embodiment of the application.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the application in a 120-degree open state
  • FIG. 2 is a schematic diagram of an electronic device provided in an embodiment of the application in a 180-degree open state Schematic diagram of the structure
  • FIG. 3 is a schematic diagram of the structure of an electronic device in an open state of 270 degrees according to an embodiment of the application
  • FIG. 4 is a schematic diagram of the structure of an electronic device in an opened state of 360 degrees according to an embodiment of the application
  • 5 is a schematic structural diagram of an electronic device in a closed state according to an embodiment of the application.
  • the electronic device includes a first part 2 and a second part 3, and a rotating shaft assembly 1 is rotatably connected between the first part 2 and the second part 3.
  • the electronic device may be a foldable mobile phone, tablet, notebook computer, etc.
  • the first part 2 and the second part 3 may be a host and a display screen, such as a foldable notebook, or may be a display screen and a display screen, such as a foldable smart phone or tablet.
  • the rotating shaft assembly 1 may be a double rotating shaft or a multi-axis linkage structure to achieve the folding between the host and the display screen, or the folding between the display screens.
  • the dual-axis mechanism in the prior art realizes the folding of the electronic device
  • the two rotating shafts can only rotate relative to each other but cannot move relative to each other, and the electronic device cannot be maintained at a fixed folding angle, which causes inconvenience in use.
  • the multi-axis linkage commonly used nowadays can maintain the electronic equipment at the required folding angle, in order to achieve this effect, its multi-axis linkage mechanism uses more parts, complex assembly, and higher requirements for assembly. , Resulting in an increase in cost.
  • an embodiment of the present application provides a rotating shaft mechanism of an electronic device.
  • the rotating shaft mechanism includes at least one set of rotating shaft mechanisms. 11. To connect the host and the display screen to realize the folding between the host and the display screen.
  • the rotating shaft mechanism 11 includes a plurality of rotating shafts 111, and the first gear set 116 includes a first gear 116a and a second gear that are engaged.
  • the gear set 117, the second gear set 117 includes a meshed third gear 117a and a fourth gear 117b, the third gear 117a and the fourth gear 117b are respectively connected to the rotating shaft 111; driven by the first gear set 116, the third gear The gear 117a and the fourth gear 117b mesh and rotate; and/or, the second gear set 117 drives the other transmission set 119 to move.
  • the two rotating shafts 111 are meshed and connected by the first gear 116a and the second gear 116b in the first gear group 116, which is specifically expressed as: when the main unit and the display screen are folded, external rotational force is applied to the main unit
  • the rotating force is transmitted to one of the transmission groups 119, so that the rotating shaft 111 generates a rotating force that rotates with the display screen or the host.
  • a certain displacement occurs when the rotating shaft 111 rotates.
  • the relative movement between the two rotating shafts 111 is restricted, so that the meshing of the two gears can pass the rotation in the transmission group 119.
  • the power-moving rotating shaft 111 rotates around another rotating shaft 111 to form the main source of the folding angle when the electronic product is folded.
  • the adjacent rotation shaft 111 transmits the rotational force of the previous transmission group 119 to the adjacent next transmission through the engagement of the third gear 117a and the fourth gear 117b in the second gear group 117 provided.
  • Group 119, the meshing of the first gear 116a and the second gear 116b in the previous transmission group 119 makes one of the rotating shafts 111 rotate around the other rotating shaft 111, that is, in addition to relative rotation between the two rotating shafts 111, there is also It can move relatively, and the relative movement of the two rotating shafts 11 can realize the folding of the first part 2 and the second part 3 of the electronic device.
  • a third gear 117a and a fourth gear 117b are provided on the adjacent shaft 111 in the previous transmission group 119 and the adjacent next transmission group 119, respectively.
  • One of the gears in the second gear set 117 is located in the previous transmission set 119, and the other gear is located in the adjacent next transmission set 119.
  • the third gear 117a will generate a corresponding rotational force with the action of the previous transmission set 119.
  • the third gear 117a and the fourth gear 117b are meshed, thereby transmitting the rotational force of the previous transmission group 119 to the next transmission group 119, so that the first gear 116a and the second gear 116b in the next transmission group 119 are meshed
  • the rotation principle of the rotating shaft mechanism 11 can be obtained by analogy.
  • the rotation of the two rotating shafts 111 in the transmission group 119 is realized through the above-mentioned first gear set 116, and the second gear group 117 realizes the transmission of the rotational force between the transmission groups 119, so as to pass through the first gear set 116 and the second gear.
  • the linkage of the group 117 realizes the rotation of the shaft mechanism 11, the structure is simple, the coordination stability is good, and the stable performance of the folding of the electronic product is ensured.
  • the first gear set 116 and the second gear set 117 are arranged alternately; the third gear 117a is coaxial with a second gear 116b, and the third gear 117a is coaxial with the second gear set 117a.
  • the index circle of the gear 116b is different; the fourth gear 117b is coaxial with the other second gear 116b, and the index circle of the fourth gear 117b is different from the second gear 116b coaxial with it.
  • the second gear set 117 is used to transmit the force of the previous transmission set 119 to the next transmission set 119, so that the next transmission set 119
  • the first gear set 116 is meshed.
  • the first gear set 116 in the adjacent transmission group 119 has no meshing, which requires the index circle of the third gear 117a and the second gear 116b in the same rotating shaft in one transmission group 119
  • the fourth gear 117b in the same rotating shaft 111 in the next transmission group 119 is different and the index circle of the second gear 116b in the transmission group 119 is different, and the third gear 117a and the fourth gear 117b can be meshed.
  • the third gear 117a and the fourth gear 117b can be meshed.
  • the first gear set needs to be rotated.
  • the gears in 116 and the second gear set 117 are specifically limited. That is, the number of teeth of the first gear 116a and the second gear 116b are the same, and the indexing circle is the same, the number of teeth of the third gear 117a and the fourth gear 117b are the same, and the indexing circle is the same; the indexing circle of the third gear 117a is larger than that of the first gear 117a Index circle of gear 116a.
  • the connected third gear 117a meshes with the fourth gear 117b of the third shaft 111, and the rotation of the fourth gear 117b when meshing drives the host or display screen connected to it to rotate accordingly, thereby realizing the folding of the electronic product.
  • the first two rotating shafts 111 are connected by the first gear set 116 to form a first transmission group 119a, and the last two rotating shafts 111
  • Another first gear set 116 is connected to form a second transmission set 119b, and the first transmission set 119a and the second transmission set 119b are connected through a second gear set 117.
  • an external rotating force is applied to the first transmission group 119a, after the rotating shaft 111 of the first gear 116a receives the force, the rotating shaft 111 has a tendency to move with the external applied force, resulting in displacement, due to the first gear 116a and the second gear 116a and the second gear 116a.
  • the meshing of the gear 116b causes the shaft 111 of the first gear 116a to rotate around the other shaft 111.
  • the shaft 111 of the second gear 116b is driven by the second gear 116b to rotate around the axis of the shaft 111.
  • the coaxially connected third gear 117a meshes with the fourth gear 117b in the second transmission group 119b.
  • the fourth gear 117b is coaxial with the second gear 116b in the second transmission group 119b.
  • the coaxial second gear 116b meshes with the first gear 116a, thereby driving the rotating shaft 111 on which the first gear 116a is arranged to rotate relative to the other rotating shaft 111, and driving the host or display connected to the second transmission group 119b
  • the screen rotates accordingly, thereby realizing the folding of the electronic product.
  • the first gear 116a is rotatably connected with the rotating shaft 111
  • the second gear 116b is fixedly connected with the rotating shaft 111
  • the third gear 117a and the fourth gear 117b are respectively Connected with the rotating shaft 111 in rotation.
  • one of the rotating shafts 111 in the transmission group 119 rotates around the other rotating shaft 111
  • the meshing of the third gear 117a and the fourth gear 117b is used to transmit the force of the transmission group 119 Go to the next transmission group 119 or gear group to improve the stability of coordination.
  • the square hole and the round hole realize a fixed connection and a rotating connection.
  • the shaft mechanism 11 further includes a first connecting member 112,
  • the member 112 is fixedly connected to the rotating shaft 111 connected with the meshing third gear 117a and the fourth gear 117b; the first connecting member 112 is used to transmit the movement of the first gear set 116 to the second gear set 117.
  • the second connecting piece 113 in the transmission assembly 119, the second connecting piece 113 connects two adjacent rotating shafts 111; the second connecting piece 113 is fixedly connected to one rotating shaft 111 and is rotatably connected to the other rotating shaft 111.
  • the second connecting member 113 is used for When the meshing state of the first gear 116a and the second gear 116b is restricted, one of the first gear 116a and the second gear 116b can rotate around the other, so that one rotating shaft 111 in the same transmission group 119 can rotate around the other rotating shaft 111 Rotation.
  • the first connecting piece 112 is used to transmit the force in the previous transmission group 119 to drive the third gear.
  • the gear 117a meshes with the fourth gear 117b, and through the meshing movement of the two gears, the force is transmitted to the other transmission group 119, which drives one rotation shaft 111 in the transmission group 119 to rotate around the other rotation shaft 111.
  • the meshing directions of the first gear set 116 and the second gear set 117 are all the same, so that the linkage between the gear sets can be folded in a manner such that the electronic product is folded.
  • the folding stability is better and will not be restricted by the influence of the rotating shaft.
  • the second connecting member 113 also includes a first sleeve 113a and a second set
  • the inner wall of the first sleeve 113a is rotatably connected with the shaft 111, the outer wall of the first sleeve 113a is fixedly connected with the third gear 117a, and the outer wall of the first sleeve 113a is fixedly connected with the second connecting member 113;
  • second The inner wall of the sleeve 113b is rotatably connected with the rotating shaft 111, the outer wall of the second sleeve 113b is fixedly connected with the fourth gear 117b, and the outer wall of the second sleeve 113b is fixedly connected with the second connecting member 113.
  • the first gear set 116 and the second gear set 117 are cooperating with the first connecting piece 112 and the second connecting piece 113 to drive
  • the other connected display screen or host also rotates, and the display screen and the host move at the same time to save effort and time spent when folding the same angle.
  • the structural cooperation between the first gear set 116, the second gear set 117, the first connecting member 112 and the second connecting member 113 will be further described below:
  • the rotating shaft 111 includes a first rotating shaft 111a, a second rotating shaft 111c, and a third rotating shaft 111b, and the third rotating shaft 111b is located between the first rotating shaft 111a and the second rotating shaft 111a.
  • the third rotating shaft 111b includes a plurality of third rotating shafts 111b arranged in sequence between the first rotating shaft 111b and the second rotating shaft 111c.
  • the first gear set 116 connects the first rotating shaft 111a with the third rotating shaft 111b
  • the second gear set 117 connects the second rotating shaft 111c with the third rotating shaft 111b.
  • the first gear 116a is rotatably connected to the first shaft 111a
  • the second gear 116b is fixedly connected to the third shaft 111b
  • the third gear 117a is rotatably connected to the third shaft 111b that is the same as the second gear 116b
  • the fourth gear 117b It is rotatably connected to the second rotating shaft 111c.
  • the rotating force When a rotating force is applied to one of the host or the display screen, the rotating force forms the rotating force on the first rotating shaft 111a or the second rotating shaft 111b and the driving force of the first gear set 116. At the same time, the rotating force passes through the first gear set 116. 116 transmits the rotational force to the second gear set 117, and under the meshing action of the second gear set 117, the rotational force is transmitted to the host or the display screen where no rotational force is applied. So that when a force is applied to either the host computer and the display screen, both the host computer and the display screen can be rotated at the same time to change the folding angle, which can save the applied force and fold to the required speed faster Angle.
  • the first connecting portion 142 and the second connecting portion 143 are respectively connected to the first rotating shaft 111a and the second rotating shaft 111c while the first connecting portion 142 and the second connecting portion 143 are respectively rotatingly connected to the first rotating shaft 111a and the second rotating shaft 111c.
  • the connecting portion 142 and the second connecting portion 143 are also fixedly connected to a gear located in the first rotating shaft 111a and the second rotating shaft 111c.
  • the two outermost rotating shafts 111 ie, the first rotating shaft 111a and the second rotating shaft 111c
  • the two outermost rotating shafts 111 can simultaneously change the angle of rotation relative to the third rotating shaft 111b, thereby realizing electronic Folding of the device.
  • the rotating shaft mechanism 11 can change the angle between the display screen and the host to achieve a folding effect. Therefore, during the folding process, the first rotating shaft 111a and the second rotating shaft 111c respectively connected to the display screen and the host need to rotate around the third rotating shaft 111b.
  • the first gear set 116 provided between the first shaft 111a and the third shaft 111b, and the second shaft 111c and the third shaft 111b needs to arrange the first gear 116a and the second gear 116b in the adjacent transmission set 119 The order is reversed. Between the adjacent transmission groups 119, the two second gears 116b are opposite or the two first gears 116a are opposite.
  • the third rotating shaft 111b in the above embodiments may include one or more.
  • the third rotating shafts 111b are arranged in order. Distributed between the first rotating shaft 111a and the second rotating shaft 111c.
  • the first connecting portion 142 is fixedly connected to the first gear set 116
  • the second connecting portion 142 is fixedly connected to the first gear set 116.
  • first connecting portion 142 and the second connecting portion 143 rotate in opposite directions when the part 143 is fixedly connected to the second gear set 117, or when the first connecting portion 142 and the second connecting portion 143 are fixedly connected to the first gear set 116, respectively ,
  • the first connecting portion 142 and the second connecting portion 143 rotate in the same direction.
  • the display screen or the host connected to the first rotating shaft 111a rotates clockwise or counterclockwise, it only needs to pass through the first gear set 116 and The meshing and transmission of the second gear set 117 can realize that the display screen or the host connected to the second rotating shaft 111c can move in the same direction or in the opposite direction.
  • the display screen and the host can respectively move in the same direction or in the opposite direction to meet the folding needs of different users under different conditions.
  • the display screen and the host can be designed to rotate in the same direction.
  • the folding of the electronic device can also be achieved.
  • the folding angle of the electronic device is required to be large, it is even necessary to achieve a 0-360 degree folding, and the display screen and the host need to be designed to rotate in the opposite direction to meet different usage requirements.
  • the third rotating shaft 111b is two for specific description (as shown in FIG. 9 and FIG. 10):
  • the rotating shaft 111 includes a first rotating shaft 111a, a second rotating shaft 111c, and a third rotating shaft 111b.
  • the first gear 116a in a transmission group 119 is rotatably connected to the first rotating shaft 111a, and the second gear 116b is fixedly connected to the adjacent third rotating shaft 111b.
  • the third gear 117a is fixedly connected to the third shaft 111b
  • the fourth gear 117b is fixedly connected to the other third shaft 111b
  • the second gear 116b in the next transmission group 119 is fixedly connected to the fourth gear 117b.
  • first gear set 116 and the second gear set 117 are arranged in a staggered manner.
  • the first gear set 116 is located at the same position on the shaft 111 to form a wave-shaped arrangement.
  • the first gear 116a in the adjacent transmission set 119 The arrangement sequence is opposite to that of the second gear 116b (that is, the two adjacent rotating shafts 111 in the adjacent transmission group 119 are both the first gear 116a or the second gear 116b). Since the index circles of the two gear sets are different, there is a gap between the two first gear sets 116, so as to ensure that the force transmission path during meshing is alternately combined between the first gear set 116 and the second gear set 117 And formed (see below for details).
  • the transmission path of the force between the gears and the specific cooperation relationship of each part are as follows: the second connecting member 113 is fixedly connected to the rotating shaft 111 provided with the first gear 116a, and is rotatably connected with the rotating shaft 111 provided with the second gear 116b to During the folding process, when a rotating force is applied to the first gear 116a in the first rotating shaft 111a, the first gear 116a meshes with the second gear 116b, so that the first rotating shaft 111a rotates around the third rotating shaft 111b, and at the same time Since the first gear 116a is rotatably connected with the first shaft 111a, and the first connecting portion 142 is rotatably connected with the first shaft 111a, the rotation of the first shaft 111a around the second shaft 111c will not cause the first shaft 111a to rotate, and the first shaft 111a The two connecting members 113 are fixedly connected to the first rotating shaft 111a.
  • the second connecting member 113 When the first rotating shaft 111a rotates around the third rotating shaft 111b, the second connecting member 113 will move with the first rotating shaft 111a.
  • the first gear 116a meshes with the second gear 116b the second gear 116b is fixedly connected to the third rotating shaft 111b, and the third rotating shaft 111b will rotate in the meshing direction following the meshing of the second gear 116b, and the second connecting The member 113 is rotatably connected with the third rotating shaft 111b, so that the stability of the meshing between the first gear 116a and the second gear 116b can be ensured through the second connecting member 113, so as to avoid position shift when the first rotating shaft 111a rotates around the third rotating shaft 111b .
  • first sleeve 113a matched with the second connecting member 113 is at least partially connected to the third gear 117a, so that when the first rotating shaft 111a rotates around the third rotating shaft 111b, the third gear 117a meshes with the fourth gear 117b.
  • the inner walls of the first sleeve 113a and the second sleeve 113b are respectively rotatably connected with the rotating shaft 111, the outer wall is fixedly connected with the second connecting member 113, and the first sleeve 113a and the second sleeve 113b extend to be arranged on the third gear 117a or the fourth gear 117b and the shaft 111 are matched with the clearance, so that the outer walls of the first sleeve 113a and the second sleeve 113b are fixedly connected with the third gear 117a and the fourth gear 117b, and the first sleeve 113a and the second sleeve 113a
  • the inner wall of the second sleeve 113b is rotatably connected with the third rotating shaft 111b.
  • the fourth gear 117b and the first connecting member 112 on the third rotating shaft 111b are provided with a second sleeve 113b, when the fourth gear 117b rotates, the second sleeve 113b rotates to drive the second connecting member 113 rotates, so that the second connecting member 113 drives the second rotating shaft 111c fixedly connected to it to move.
  • the first gear 116a and the second gear 116b in the next transmission group 119 mesh, so that the second rotating shaft 111c rotates around the adjacent first gear.
  • the three rotating shaft 111b rotates.
  • the second connecting member 113 connected to the first rotating shaft 111a or the second rotating shaft 111c is driven to rotate through this structural cooperation, the second connecting member 113 on the other rotating shaft 111 can be realized at the same time through the linkage of the gear set. Movement to achieve simultaneous folding.
  • the first connecting piece 112 is connected to the two adjacent rotating shafts 111 in the adjacent transmission group 119, that is, the second connecting piece.
  • One end of 113 is fixedly connected with the third rotating shaft 111b in the previous transmission group 119, and the other end is fixedly connected with the third rotating shaft 111b in the adjacent next transmission group 119, and the two third rotating shafts 111b are respectively connected to the third gear in rotation 117a and the fourth gear 117b.
  • the rotation directions of the display screen and the host connected at both ends may be the same or different.
  • the first connecting part 142 at one end is fixedly connected with the outermost gear on the first gear set 116
  • the second connecting part 143 at the other end is fixedly connected with the outermost gear on the second gear set 117. That's it.
  • the purpose of folding at a certain angle can also be achieved, which will not be described in detail here.
  • the present application focuses on the detailed description of the display screen and the host in the opposite direction of rotation.
  • the gears of the two outermost first gear sets 116 are respectively fixedly connected to the first connecting portion 142 and the second connecting portion 143 to pass through the
  • the linkage of a gear set 116 and a second gear set 117 realizes the simultaneous approach or distance between the display screen and the host.
  • the first gear 116a and the second gear 116b have the same number of teeth and the same index circle, and the third gear 117a and the fourth gear 117b have the same number of teeth.
  • the index circle is the same; the index circle of the third gear 117a is larger than the index circle of the first gear 116a.
  • the first connecting portion 142 and the second connecting portion 143 are parallel to each other, and the first connecting portion 142 and The angle between the axis of the first rotating shaft 111a and the axis of the third rotating shaft 111b is m, the second connecting portion 143 and the axis of the second rotating shaft 111c and the axis of the third rotating shaft 111b
  • the angle of the connection line is t; the angle between the line between the axis of the first rotating shaft 111a and the axis of the third rotating shaft 111b and the line between the axis of the adjacent third rotating shaft 111b is n, the second The angle between the line between the axis of the rotating shaft 111c and the axis of the third rotating shaft 111b and the line between the axis of the adjacent third rotating shaft 111b is f; the number of teeth of the first gear 116a and
  • the matching form of the gear assembly on the rotating shaft 111 is the same as the matching form when the even number is the same.
  • FIG. 18 it is a simple schematic diagram of the gear assembly matching. The connection and cooperation of specific components are the same as the even-numbered ones, and will not be repeated here.
  • the rotating shaft mechanism 11 when the number of the third rotating shaft 111b is an even number, the rotating shaft mechanism 11 further includes a fifth gear 118.
  • the fifth gear 118 is arranged at the end of the second gear set 117 along the axial direction of the rotating shaft 111. , The fifth gear 118 is used to transmit force between adjacent shafts at the same position; the index circle of the fifth gear 118 is different from the first gear 116a and the second gear 116b.
  • the shaft mechanism 11 also includes a torsion portion 113a; the torsion portion 113a is used to connect two shafts 111 in the same transmission group 119, one end of the torsion portion 113a is fixedly connected to the shaft 111 provided with the first gear 116a, and the other end is connected to the device
  • the rotating shaft 111 with the second gear 116b is rotatably connected.
  • the torsion portion 114 includes a cell sleeve 114a and a cell body 114b; the cell sleeve 114a has a first hole 114c and a second hole 114d, the cell body 114b fits in the second hole 114d of the cell sleeve 114a, and the cell body 114b and the second hole 114d rotate Connected, the cell body 114b is rotatably connected with the rotating shaft 111, and the first hole 114c is fixedly connected with the rotating shaft 111.
  • the effect of rotation coordination is improved, and the torsion force is enhanced.
  • the second hole 114d is provided with a third hole 114e penetrating the side wall of the second hole 114d.
  • the driving part 115 includes a bracket sleeve 115a fixedly connected with the first connecting member 142 or the second connecting member 143.
  • the bracket sleeve 115a is provided with a fourth hole 115c.
  • the hole 115c is fitted with a support sleeve 115b, which is rotatably connected with the fourth hole 115c, and the support sleeve 115b is fixedly connected with the first shaft 111a or the second shaft 111c along the axis direction of the fourth hole 115c , A fifth hole 115d penetrating the side wall of the fourth hole 115c is provided.
  • the rotational connection and the fixed connection described between the above components can be realized in a variety of ways.
  • the cross-section of the mating part when the two are mated is a circular structure
  • the cross section of the mating part is a circular structure.
  • One of the cross-sections of the mating part during mating is a circular structure, and the other is a square structure. It can also be other matching forms that can realize the rotational connection and the fixed connection, which will not be repeated here.
  • the present application provides a specific implementation manner.
  • the electronic device shown in FIGS. 6 and 7 constitutes a rotating shaft assembly 1, and the host and the display screen are connected through a fixed connecting portion 14.
  • the rotating shaft mechanism 11 is composed of two groups, which respectively connect the host and the display screen.
  • the two sets of rotating shaft mechanisms 11 are connected by a connecting mechanism 12.
  • the connecting mechanism 12 includes a decorative tube 121, a decorative cover 13, and the like.
  • a decorative tube 121 is provided between the rotating shafts 111 in the two sets of rotating shaft mechanisms 11, and the other end of the rotating shaft 111 that is not connected to the decorative tube 121 is provided with a decorative cover 13.
  • the outer wall of the device is flush.
  • the decorative cover 13 enables the electronic device to be folded to different angles, as seen from the outside, a smooth transition between the host computer and the display screen can be folded.
  • connection between the decorative tube 121 and the rotating shaft 111 further includes a support sleeve 122 and a sleeve 124, the sleeve 124 is sleeved with the support sleeve 122, and the two sleeves are matched Part of the support rod 123 is fixedly connected to limit the relative displacement between the sleeve 124 and the support sleeve 122. Then the other end of the support sleeve 122 is connected to the decorative tube 121, and the other end of the sleeve 124 is connected to the rotating shaft 111, thereby realizing the connection between the two.
  • the rotating shaft 111 and the decorative tube 121 and the decorative cover 13 may be fixedly connected, or may be detachably connected, which is not specifically limited here.
  • the above-mentioned detachable connection form of the support sleeve 122 and the sleeve 124 belongs to the conventional technical means in the field, and the specific matching structure and assembly combination form are not repeated here.
  • the fixed connecting portion 14 includes a supporting frame 141, a first connecting portion 142 and a second connecting portion 143.
  • the rotating shaft mechanism 11 includes a rotating shaft 111.
  • a plurality of rotating shafts 111 are sequentially arranged in a direction perpendicular to the axis of the rotating shaft 111.
  • Two rotating shafts 111 located on the outer side are respectively connected to the first connecting portion 142 and the second connecting portion 143 to pass through the rotating shaft.
  • the mechanism 11 connects the host and the display screen.
  • the supporting frame 141 is connected through a fixing bracket 144, and the other end of the supporting frame 141 is respectively fixedly connected to the host and the display screen.
  • the support frame 141, the first connecting portion 142, and the second connecting portion 143 are fixedly connected to transmit force to the shaft mechanism 11 to provide force for the shaft mechanism 11 to move.
  • each of the first connecting portion 142 and the second connecting portion 143 includes a plurality of different connecting positions for different rotating shafts 111, including, the first connecting portion 142 is fixedly connected to one of the host or the display screen, and the second connecting portion 142 is fixedly connected to one of the host or the display screen.
  • the connecting portion 143 is fixedly connected to the other of the host or the display screen.
  • first connecting portion 142 and the second connecting portion 143 are connected to the first rotating shaft 111a and the second rotating shaft 111c, respectively, including: the first connecting portion 142 is rotatably connected to the first rotating shaft 111a, and the first connecting portion 142 is connected to the first rotating shaft 111a.
  • a rotating shaft 111a is fixedly connected to the upper gear; the second connecting portion 143 is rotatably connected to the second rotating shaft 111a, and the second connecting portion 143 is fixedly connected to the gear located on the second rotating shaft 111a.

Abstract

一种电子设备的转轴机构（11）及电子设备，转轴机构（11）包括：转轴（111），转轴（111）包括第一转轴（111a）、第二转轴（111c）和第三转轴（111b），第三转轴（111b）位于第一转轴（111a）、和第二转轴（111c）之间；齿轮组件，齿轮组件连接第一转轴（111a）、第二转轴（111c）和第三转轴（111b）；齿轮组件至少包括：第一齿轮组（116），第一齿轮组（116）包括啮合的第一齿轮（116a）和第二齿轮（116b），第一齿轮（116a）和第二齿轮（116b）分别连接两个相邻的转轴（111），并形成传动组；第二齿轮组（117），第二齿轮组（117）包括啮合的第三齿轮（117a）和第四齿轮（117b），第三齿轮（117a）和第四齿轮（117b）分别连接相邻传动组（119）的相邻转轴（111）。在电子设备翻转过程中，转轴机构（11）配合的稳定性较好，提高使用寿命。

Description

电子设备的转轴机构及电子设备
本申请要求于2019年10月22日提交中国专利局、申请号为201911007625.X、发明创造名称为“电子设备的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
本申请涉及电子产品技术领域，尤其涉及一种电子设备的转轴机构及电子设备。
背景技术
目前，折叠手机、折叠平板、折叠电脑等电子设备中，为了能够使其具有折叠效果，一般通过转轴机构连接屏幕部分和主机部分，两者相对的转动以达到折叠任意角度的目的。
而现有技术中，用于实现折叠功能的转轴轴机构多采用双转轴的配合结构，双轴形态外观同质化严重，无法差异化产品。有些为了提高折叠时转动的效果和稳定性，采用多轴联动，而此种配合形态的零件数目太多，造价高昂。
申请内容
有鉴于此，本申请实施例提供了一种电子设备的转轴机构及电子设备，在电子设备翻转过程中，转轴机构配合的稳定性较好，提高使用寿命。
第一方面，提供了一种电子设备的转轴机构，包括：
转轴；
第一齿轮组，所述第一齿轮组包括啮合的第一齿轮和第二齿轮，所述第 一齿轮和所述第二齿轮分别连接所述转轴，所述第一齿轮驱动与所述第一齿轮连接的所述转轴绕与所述第二齿轮连接的所述转轴转动，以形成传动组；
第二齿轮组，所述第二齿轮组包括啮合的第三齿轮和第四齿轮，所述第三齿轮和所述第四齿轮分别连接所述转轴；
在所述第一齿轮组的带动下，所述第三齿轮和所述第四齿轮啮合转动；和/或，所述第二齿轮组驱动另一所述传动组运动。
通过上述中第一齿轮组实现传动组内的两个齿轮的转动，以将外部施加的力转化为转轴之间的转动，第二齿轮组以将传动组中转动的力传递至相邻的转轴，使其上配合的齿轮组运动，从而实现传转动的力的传递，带动各转轴以不同的形式转动，通过第一齿轮组和第二齿轮组的联动，实现转轴机构的转动，结构简单，配合稳定性较好，保证电子产品折叠的稳定性能。
在一种可能的实现方式中，相邻的所述第一齿轮组之间无啮合。
保证只在传动组内实现一个转轴绕另一个转轴的转动，以通过此种转动形式产生折叠时夹角改变的效果，需要保证相邻的第一齿轮组之间无啮合关系，避免影响折叠效果。
在一种可能的实现方式中，沿所述转轴的轴向，所述第一齿轮组和所述第二齿轮组交错排布；
所述第三齿轮与一个所述第二齿轮同轴，所述第三齿轮和与其同轴的所述第二齿轮的分度圆不同；
所述第四齿轮与另一个所述第二齿轮同轴，所述第四齿轮和与其同轴的所述第二齿轮的分度圆不同。
通过此种配合结构以在相邻第一齿轮组间无啮合的情况下，第三齿轮和第四齿轮能够产生啮合，以实现传动组间力的传递。
在一种可能的实现方式中，所述第一齿轮和所述第二齿轮的齿数相同，且分度圆相同，所述第三齿轮和所述第四齿轮的齿数相同，且分度圆相同；
所述第三齿轮的分度圆大于所述第一齿轮的分度圆。
以使在电子产品的折叠中，驱动主机或显示屏中的一者转动时，另一者也能够在转轴机构的作用下转动相应的角度。
在一种可能的实现方式中，所述第一齿轮与所述转轴转动连接，所述第二齿轮与所述转轴固定连接；
所述第三齿轮和所述第四齿轮分别与所述转轴转动连接。
以实现第一齿轮与第二齿轮的啮合使传动组内其中一个转轴绕另一个转轴转动，第三齿轮和第四齿轮的啮合用于传动组间力的传递，提高配合的稳定性。
在一种可能的实现方式中，所述转轴机构还包括第一连接件，所述第一连接件与啮合的所述第三齿轮和所述第四齿轮连接的所述转轴固定连接；
所述第一连接件用于将所述第一齿轮组的运动传递至所述第二齿轮组。
在一种可能的实现方式中，所述转轴机构还包括第二连接件，在所述传动组中，所述第二连接件将相邻两个所述转轴连接；
所述第二连接件与一个所述转轴固定连接，与另一个所述转轴转动连接。
用于限制第一齿轮和第二齿轮啮合状态下，第一齿轮和第二齿轮中的一者能够绕另一者转动，从而实现同一传动组中的一个转轴绕另一个转轴的转动。
在一种可能的实现方式中，所述第二连接件还包括第一套筒和第二套筒；
所述第一套筒的内壁与所述转轴转动连接，所述第一套筒的外壁与所述第三齿轮固定连接，且所述第一套筒的外壁与所述第二连接件固定连接；
所述第二套筒的内壁与所述转轴转动连接，所述第二套筒的外壁与所述第四齿轮固定连接，且所述第二套筒的外壁与所述第二连接件固定连接。
在一种可能的实现方式中，所述转轴机构还包括扭力部；
所述扭力部用于连接同一传动组中的两个所述转轴，所述扭力部的一端与设有所述第一齿轮的所述转轴固定连接，另一端与设有所述第二齿轮的所述转轴转动连接。
通过扭力部的设置，在各转轴转动时，提供摩擦扭力，以提高折叠时稳定性，确保电子设备开合效果。
在一种可能的实现方式中，所述转轴包括第一转轴、第二转轴和第三转轴，所述第三转轴位于所述第一转轴和所述第二转轴之间；
所述第三转轴包括多个，多个所述第三转轴顺序排布于所述第一转轴和所述第二转轴之间。
在一种可能的实现方式中，所述转轴机构还包括第一连接部和第二连接部；
所述转轴个数为奇数，所述第一连接部与所述第一齿轮组固定连接，所述第二连接部与所述第二齿轮组固定连接，以使所述第一连接部和所述第二连接部转动方向相反。
在一种可能的实现方式中，所述转轴机构还包括第一连接部和第二连接部；
所述转轴个数为偶数，所述第一连接部和所述第二连接部均与所述第一齿轮组固定连接，以使所述第一连接部和所述第二连接部转动方向相反。
在一种可能的实现方式中，所述转轴机构还包括第五齿轮，所述第五齿轮设置于所述第二齿轮组的端部。
第五齿轮用于将同一位置相邻轴之间力的传递。
在一种可能的实现方式中，所述转轴个数为4个，所述第一连接部和所述第一转轴的轴心与所述第三转轴的轴心之间的连线的夹角为m，所述第二连接部和所述第二转轴的轴心与所述第三转轴的轴心之间的连线的夹角为t；
所述第一转轴的轴心与所述第三转轴的轴心之间的连线与相邻所述第三转轴轴心之间的连线的夹角为n，所述第二转轴的轴心与所述第三转轴的轴心之间的连线与相邻所述第三转轴轴心之间的连线的夹角为f；
所述第一齿轮和所述第二齿轮的齿数相同，且分度圆相同，所述第三齿轮和所述第四齿轮的齿数相同，且分度圆相同时，m＝t，n＝f，且m与n之和为 90度。
在一种可能的实现方式中，所述传动组中所述第一齿轮与所述第二齿轮的齿数比为n：m，且所述第三齿轮与所述第四齿轮的齿数相同时，所述第一转轴、所述第二转轴和所述第三转轴转动至处于同一平面。
第二方面，提供了一种电子设备，包括第一部分和第二部分，所述第一部分和所述第二部分之间通过转轴机构连接，所述转轴机构为上述中所述的转轴机构。
本申请的有益效果为：
本申请提供的转轴机构，包括：转轴；第一齿轮组，第一齿轮组包括啮合的第一齿轮和第二齿轮，第一齿轮和所述第二齿轮分别连接转轴，第一齿轮驱动与第一齿轮连接的转轴绕与第二齿轮连接的转轴转动，以形成传动组；第二齿轮组，第二齿轮组包括啮合的第三齿轮和第四齿轮，第三齿轮和第四齿轮分别连接转轴；在第一齿轮组的带动下，第三齿轮和第四齿轮啮合转动；和/或，第二齿轮组驱动另一传动组运动。利用本申请提供的转轴机构，在电子设备翻转过程中，转轴机构配合的稳定性较好，减少零部件的配合使用，提高使用寿命。
本申请还提供一种电子设备，包括第一部分和第二部分，所述第一部分和所述第二部分之间转动通过转轴机构连接，所述转轴机构为上述中所述的转轴机构。
该电子设备与转轴机构所具有的优势相同，在此不再赘述。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下， 还可以根据这些附图获得其它的附图。
图1为本申请实施例提供的一种电子设备在打开120度状态的结构示意图；
图2为本申请实施例提供的一种电子设备在打开180度状态的结构示意图；
图3为本申请实施例提供的一种电子设备在打开270度状态的结构示意图；
图4为本申请实施例提供的一种电子设备在打开360度状态的结构示意图；
图5为本申请实施例提供的一种电子设备在闭合状态的结构示意图；
图6为本申请实施例提供的转轴组件结构示意图；
图7为本申请实施例提供的转轴组件爆炸图；
图8为本申请实施例提供的转轴机构结构示意图；
图9为图8中A部分局部放大图；
图10为本申请实施例提供的转轴机构爆炸图；
图11为本申请实施例提供的转轴结构示意图；
图12为图10中扭力部部分爆炸图；
图13为图10中驱动部部分爆炸图；
图14为图10中第一连接件部分爆炸图；
图15为图10中第二连接件部分爆炸图；
图16为图10中第一齿轮组部分爆炸图；
图17为图10中第二齿轮组部分爆炸图；
图18为三个转轴时第一连接部与第二连接部反向转动的齿轮组件配合简单示意图；
图19为四个转轴时第一连接部与第二连接部反向转动的齿轮组件配合简单示意图；
图20为本申请实施例提供的电子设备在闭合状态下第一齿轮组位置关系图；
图21为本申请实施例提供的电子设备在闭合状态下齿轮组件位置关系图。
附图标记：
1-转轴组件；
11-转轴机构；
111-转轴；
111a-第一转轴；
111b-第三转轴；
111c-第二转轴；
112-第一连接件；
113-第二连接件；
113a-第一套筒；
113b-第二套筒；
114-扭力部；
114a-胞套；
114b-胞体；
114c-第一孔；
114d-第二孔；
114e-第三孔；
115-驱动部；
115a-承架套；
115b-承架套体；
115c-第四孔；
115d-第五孔；
116-第一齿轮组；
116a-第一齿轮；
116b-第二齿轮；
117-第二齿轮组；
117a-第三齿轮；
117b-第四齿轮；
118-第五齿轮；
119-传动组；
119a-第一传动组；
119b-第二传动组；
12-连接机构；
121-装饰管；
122-支撑套；
123-支撑杆；
124-套管；
13-装饰盖；
14-固定连接部；
141-承架；
142-第一连接部；
143-第二连接部；
144-固定支架；
2-第一部分；
3-第二部分。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
具体实施方式
为了更好的理解本申请的技术方案，下面结合附图对本申请实施例进行详细描述。
应当明确，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
需要注意的是，本申请实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本申请实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
参照图1至图5，其中，图1为本申请一实施例提供的电子设备在打开120度状态的结构示意图；图2为本申请一实施例提供的一种电子设备在打开180度状态的结构示意图；图3为本申请一实施例提供的一种电子设备在打开270度状态的结构示意图；图4为本申请一实施例提供的一种电子设备在打开360度状态的结构示意图；图5为本申请一实施例提供的一种电子设备在闭合状态的结构示意图。
本申请一实施例提供了一种电子设备，如图1-5所示，该电子设备包括第一部分2和第二部分3，第一部分2和第二部分3之间转动连接转轴组件1。该电子设备可以为可折叠式的手机、平板、笔记本电脑等。其中，第一部分2和第二部分3可以分别为主机和显示屏，如折叠式的笔记本；或者可以为显示屏和显示屏，如可折叠式的智能手机或平板。为了实现电子设备的折叠，转轴组件1可以为双转轴或多轴联动的结构配合形式，以达到主机与显示屏之间的折叠，或显示屏之间的折叠。
现有技术中的双转轴机构在实现电子设备的折叠时，两个转轴之间只可相对转动却无法相对移动，无法使电子设备保持在固定的折叠角度，造成使用上的不便。而现在普遍采用的多轴联动，虽然能够使电子设备维持在所需的折叠角度，但为了达到此效果，其多轴联动机构所使用的零部件较多，装配复杂，对装配的要求较高，从而造成了成本的提升。
有鉴于此，以下以主机和显示屏之间能够折叠的电子设备为例，如图8所示，本申请一实施例提供了一种电子设备的转轴机构，该转轴机构包括至少一组转轴机构11，以将主机与显示屏之间连接，实现主机与显示屏之间的折叠。
为了能够达到主机与显示屏之间的折叠需求，如图10、图16和图17所示，转轴机构11包括多个转轴111，第一齿轮组116包括啮合的第一齿轮116a和第二齿轮116b，第一齿轮116a和第二齿轮116b分别连接转轴111，第一齿轮116a驱动与第一齿轮116a连接的转轴111绕与第二齿轮116b连接的转轴111转动，以形成传动组119；第二齿轮组117，第二齿轮组117包括啮合的第三齿轮117a和第四齿轮117b，所述第三齿轮117a和第四齿轮117b分别连接转轴111；在第一齿轮组116的带动下，第三齿轮117a和第四齿轮117b啮合转动；和/或，第二齿轮组117驱动另一所传动组119运动。
在同一传动组119中，两个转轴111通过第一齿轮组116中第一齿轮116a与第二齿轮116b的啮合连接，具体表现为，在折叠主机与显示屏时，外部的转动力施加于主机和显示屏中的至少一者，该转动力传递至其中一个传动组119中时，转动力传递至连接的其中一个转轴111，使该转轴111产生随显示屏或主机一起转动的转动力，该转轴111转动时产生一定的位移。与此同时，由于两个转轴111中第一齿轮116a和第二齿轮116b的啮合，限制了两个转轴111之间的相对运动，从而通过两个齿轮的啮合以在该传动组119中通过转动力运动的转轴111绕另一个转轴111转动，以形成电子产品折叠时的产生折叠角度的主要来源。
在相邻传动组119中，相邻的转轴111通过设置的第二齿轮组117中第三齿轮117a与第四齿轮117b的啮合实现将上一传动组119的转动力传递至相邻下一传动组119，在上一传动组119中第一齿轮116a和第二齿轮116b的啮合，使其中一个转轴111绕另一个转轴111转动，即两转轴111之间除相对转动外，二者之间还能够相对移动，两转轴11的相对移动能够实现电子设备的第一部分2和第二部分3的折叠。
为了将此种转动形式的转动力传递至下一传动组119中，上一传动组119与相邻下一传动组119中相邻的转轴111分别设置第三齿轮117a和第四齿轮117b，由于第二齿轮组117中的其中一个齿轮位于上一传动组119，另一个齿轮位于相邻的下一传动组119，第三齿轮117a会随上一传动组119的动作产生相应的转动力，随着第三齿轮117a和第四齿轮117b的啮合，从而将上一传动组119的转动力传递至下一传动组119，以使下一传动组119中的第一齿轮116a和第二齿轮116b啮合时，使其中一个转轴111绕另一个转轴111转动。当在转轴机构11中存在多个传动组119时，以此类推即可得出转轴机构11的转动原理。
因此，通过上述中第一齿轮组116实现传动组119内的两个转轴111的转动，第二齿轮组117实现传动组119间的转动力的传递，以通过第一齿轮组116和第二齿轮组117的联动，实现转轴机构11的转动，结构简单，配合稳定性较好，保证电子产品折叠的稳定性能。
作为本申请的一种具体实施方式，如图8和图9所示，相邻的第一齿轮组116之间无啮合。由于第一齿轮组116用于传动组119内的连接，第二齿轮组117用于传动组119间的连接，当转轴机构11中具有多个传动组119时，为了保证只在传动组119内实现一个转轴111绕另一个转轴111的转动，以通过此种转动形式产生折叠时夹角改变的效果，需要保证相邻的第一齿轮组116之间无啮合关系，即动力无法在相邻第一齿轮组116之间直接传递，只能通过第二齿轮组117传递相邻两第一齿轮组116之间的运动。
具体的，沿转轴111的轴向，第一齿轮组116和第二齿轮组117组交错排布；第三齿轮117a与一个第二齿轮116b同轴，第三齿轮117a和与其同轴的第二齿轮116b的分度圆不同；第四齿轮117b与另一个第二齿轮116b同轴，第四齿轮117b和与其同轴的第二齿轮116b的分度圆不同。为了实现上述中第一齿轮组116用于实现传动组119内的传动，第二齿轮组117用于将上一传动组119的力传递至下一传动组119，以使下一传动组119的第一齿轮组116啮合。而为了达到此种齿轮联动的效果，相邻传动组119中的第一齿轮组116无啮合，这需要在一个传动组119中同一转轴中的第三齿轮117a与第二齿轮116b的分度圆不同，且相邻的下一传动组119同一转轴111中的第四齿轮117b与该传动组119中的第二齿轮116b的分度圆不同，第三齿轮117a和第四齿轮117b才能实现啮合，以进行传动组119间力的传递。
在电子产品的折叠中，需要在驱动主机或显示屏中的一者转动时，另一者也能够在转轴机构11的作用下转动相应的角度，为了达到此种效果，需要对第一齿轮组116和第二齿轮组117中的齿轮做具体限定。即第一齿轮116a和第二齿轮116b的齿数相同，且分度圆相同，第三齿轮117a和第四齿轮117b的齿数相同，且分度圆相同；第三齿轮117a的分度圆大于第一齿轮116a的分度圆。
在一种具体实施例中，当转轴111个数为3个时，如图18所示，其中相邻的两个转轴111通过第一齿轮组116连接形成传动组119，第三个转轴111与传动组119中相邻的转轴111通过第二齿轮组117连接，第二齿轮116b和第三齿轮117a均连接于同一转轴111。在外部施加转动力至传动组119时，设置第一齿轮116a的转轴111接收到该力后，该转轴111产生随外部施加力运动的趋向，产生位移，由于第一齿轮116a和第二齿轮116b的啮合，使设置第一齿轮116a的转轴111绕另一转轴111转动，在此转动过程中，设置第二齿轮116b的转轴111在第二齿轮116b的带动下绕转轴111的轴线自身转动，转动过程中带动连接的第三齿轮117a与第三个转轴111的第四齿轮117b啮合，第四齿轮117b啮合 时的转动带动与其连接的主机或显示屏随之转动，从而实现电子产品的折叠。
当转轴111个数为4个时，如图8和图19所示，在四个转轴111中，前两个转轴111通过第一齿轮组116连接形成第一传动组119a，后两个转轴111通过另一第一齿轮组116连接形成第二传动组119b，第一传动组119a和第二传动组119b之间通过第二齿轮组117连接。在外部施加转动力至第一传动组119a时，设置第一齿轮116a的转轴111接收到该力后，该转轴111产生随外部施加力运动的趋向，产生位移，由于第一齿轮116a和第二齿轮116b的啮合，使设置第一齿轮116a的转轴111绕另一转轴111转动，在此转动过程中，设置第二齿轮116b的转轴111在第二齿轮116b的带动下绕转轴111的轴线自身转动，转动过程中带动同轴连接的第三齿轮117a与第二传动组119b中的第四齿轮117b啮合，第四齿轮117b与第二传动组119b中的第二齿轮116b同轴，在第四齿轮117b的作用下，与其同轴的第二齿轮116b与第一齿轮116a啮合，从而带动设置第一齿轮116a的转轴111相对另一转轴111转动，带动与该第二传动组119b连接的主机或显示屏随之转动，从而实现电子产品的折叠。
本申请还提供了一种具体实施方式，如图18和图19所示，第一齿轮116a与转轴111转动连接，第二齿轮116b与转轴111固定连接；第三齿轮117a和第四齿轮117b分别与转轴111转动连接。以实现第一齿轮116a与第二齿轮116b的啮合使传动组119内其中一个转轴111绕另一个转轴111转动，第三齿轮117a和第四齿轮117b的啮合用于将传动组119力的传递传递至下一传动组119或齿轮组，提高配合的稳定性。
具体的，方孔和圆孔实现固定连接和转动连接。
在一种可能的设计中，如图8和图9所示，为了保证将第一齿轮组116的啮合力传递至第二齿轮组117，转轴机构11还包括第一连接件112，第一连接件112与啮合的第三齿轮117a和第四齿轮117b连接的转轴111固定连接；第一连接件112用于将第一齿轮组116的运动传递至第二齿轮组117。第二连接件113，在传动组119中，第二连接件113将相邻两个转轴111连接；第二连接件113与 一个转轴111固定连接，与另一个转轴111转动连接。
在转轴111的转动过程中，由于传动组119中的两个转轴111之间通过第二连接件113连接，在第一齿轮116a和第二齿轮116b啮合转动时，该第二连接件113用于限制第一齿轮116a和第二齿轮116b啮合状态下，第一齿轮116a和第二齿轮116b中的一者能够绕另一者转动，从而实现同一传动组119中的一个转轴111绕另一个转轴111的转动。
另外，由于啮合的第三齿轮117a和第四齿轮117b连接的转轴111之间通过第一连接件112连接，该第一连接件112用于将上一传动组119中的力传递以驱动第三齿轮117a和第四齿轮117b啮合，通过两个齿轮的啮合运动，以将力传递至另一传动组119中，带动本传动组119中的一个转轴111绕另一个转轴111转动。
更为具体的，在转轴机构11中，通过使第一齿轮组116和第二齿轮组117的啮合方向均相同的形式，使齿轮组之间的联动以使电子产品折叠的方式，能够使其折叠的稳定性更好，不会受到转轴的影响而受到制约。为了能够使在第一齿轮组116啮合时，位于同一第三转轴111b中的第二齿轮116b与第三齿轮117a的转动方向相反，第二连接件113还包括第一套筒113a和第二套筒113b；第一套筒113a的内壁与转轴111转动连接，第一套筒113a的外壁与第三齿轮117a固定连接，且第一套筒113a的外壁与第二连接件113固定连接；第二套筒113b的内壁与转轴111转动连接，第二套筒113b的外壁与第四齿轮117b固定连接，且第二套筒113b的外壁与第二连接件113固定连接。
为了能够更稳定的实现在对显示屏或主机中的任一者施加转动力时，通过第一齿轮组116和第二齿轮组117与第一连接件112、第二连接件113的共同配合带动连接的另一者显示屏或主机也随之转动，通过显示屏和主机的同时运动以节约用力和节约折叠同样夹角时所花费的时间。下面对第一齿轮组116、第二齿轮组117、第一连接件112和第二连接件113间的结构配合做进一步的说明：
在一种可能的设计中，如图9和图11所示，转轴111包括第一转轴111a、第二转轴111c和第三转轴111b，所述第三转轴111b位于第一转轴111a和第二转轴111c之间；第三转轴111b包括多个，多个第三转轴111b顺序排布于第一转轴111b和第二转轴111c之间。
在第一转轴111a、第二转轴111c和第三转轴111b之间，第一齿轮组116将第一转轴111a和第三转轴111b连接，第二齿轮组117将第二转轴111c和第三转轴111b连接，且第一齿轮116a转动连接于第一转轴111a，第二齿轮116b固定连接于第三转轴111b，第三齿轮117a转动连接于与第二齿轮116b相同的第三转轴111b，第四齿轮117b转动连接于第二转轴111c。在对主机或显示屏之中的一者施加转动力时，该转动力形成位于第一转轴111a或第二转轴111b的转动力和第一齿轮组116的驱动力，同时，通过第一齿轮组116将该转动力传递至第二齿轮组117，在第二齿轮组117的啮合作用下，将该转动力传动至未施加转动力的主机或显示屏。以使在对主机和显示屏的任一者施加作用力时，主机和显示屏都能够同时转动，以改变折叠夹角，以此能够节省施加的作用力，即可较快速的折叠至所需的角度。
并且，为了使推动主机或显示屏转动时，齿轮组能够接收到该力，第一连接部142和第二连接部143在分别与第一转轴111a和第二转轴111c转动连接的同时，第一连接部142和第二连接部143还与位于第一转轴111a和第二转轴111c中的某个齿轮固定连接，对于其固定连接的齿轮，根据齿轮组件113的啮合形式和转轴111数量以及折叠方向的不同均会产生适应性的调整(详见下述实施例)。
其中，如图8所示，在多转轴111状态下，最外侧的两个转轴111(即第一转轴111a和第二转轴111c)能够同时改变相对第三转轴111b的转动夹角，从而实现电子设备的折叠。
另外，由于位于最外侧的第一转轴111a和第二转轴111c分别连接显示屏或主机，转轴机构11是能够改变显示屏和主机之间的夹角，以达到折叠效果。 所以说，在折叠过程中，分别与显示屏和主机连接的第一转轴111a和第二转轴111c均需要绕第三转轴111b转动。而第一转轴111a与第三转轴111b、第二转轴111c与第三转轴111b之间设置的第一齿轮组116，需要使相邻传动组119中的第一齿轮116a和第二齿轮116b排布顺序相反。而在相邻传动组119之间，两个第二齿轮116b相对或者两个第一齿轮116a相对。
根据不同电子设备、不同用户的使用需求，上述各实施例中的第三转轴111b，可以包括1个，也可以包括多个，当包括多个第三转轴111b时，各第三转轴111b顺序排布于第一转轴111a和第二转轴111c之间。具体的，当转轴111个数为奇数(即第三转轴111b的个数为奇数)时，如图18和图19所示，第一连接部142与第一齿轮组116固定连接，第二连接部143与第二齿轮组117固定连接时，第一连接部142和第二连接部143转动方向相反，或者，第一连接部142和第二连接部143分别与第一齿轮组116固定连接时，第一连接部142和第二连接部143转动方向相同。
当转轴111个数为偶数(即第三转轴111b的个数为偶数)时，如图19所示，第一连接部142和第二连接部143分别与所第一齿轮组116固定连接时，第一连接部142和第二连接部143转动方向相反，或者，第一连接部142与第一齿轮组116固定连接，第二连接部143与第二齿轮组117固定连接时，第一连接部142和第二连接部143转动方向相同。
上述中对于转轴111的设置，无论转轴111的个数为奇数还是偶数时，在使与第一转轴111a连接的显示屏或主机沿顺时针或逆时针转动时，只要通过第一齿轮组116和第二齿轮组117的啮合与传递能够实现与第二转轴111c连接的显示屏或主机沿相同的方向或相反的方向运动皆可。而显示屏和主机分别能够沿相同方向或相反方向的运动，是为了满足不同的条件下、不同用户的折叠需求。对于电子设备所需折叠的角度较小的情况下，可以将显示屏和主机设计为同向的转动，只要保证其中一个的转动角度大于另一个的转动角度，同样可以实现电子设备的折叠。当对电子设备折叠的角度要求较大时，甚至 需要实现0到360度的折叠，需要将显示屏和主机设计为反向的转动，以满足不同的使用需求。
在一具体实施例中，当转轴111的个数为偶数时，以第三转轴111b为2个时做具体说明(如图9、图10所示)：
转轴111包括第一转轴111a、第二转轴111c和第三转轴111b，一个传动组119中的第一齿轮116a转动连接于第一转轴111a，第二齿轮116b固定连接于相邻的第三转轴111b，第三齿轮117a固定连接于该第三转轴111b，第四齿轮117b固定连接于另一第三转轴111b，下一传动组119中的第二齿轮116b固定连接于固定有第四齿轮117b的第三转轴111b，第一齿轮116a转动连接于第二转轴111c。并且，第一齿轮组116和第二齿轮组117交错排布，第一齿轮组116所在转轴111的位置相同，以形成波浪形的排布结构，相邻的传动组119中的第一齿轮116a和第二齿轮116b的排布顺序相反(即相邻传动组119中相邻的两个转轴111之间同为第一齿轮116a或同为第二齿轮116b)。由于两个齿轮组的分度圆不同，以使两个第一齿轮组116之间具有间隙，从而保证啮合时力的传递路径为从第一齿轮组116和第二齿轮组117之间交替组合而形成(详见下述)。
其中，各齿轮间力的传递路径及各部分具体配合关系如下：通过第二连接件113与设有第一齿轮116a的转轴111固定连接，与设有第二齿轮116b的转轴111转动连接，以使在折叠的过程中，当对第一转轴111a中的第一齿轮116a施加转动力时，第一齿轮116a与第二齿轮116b啮合，使第一转轴111a绕第三转轴111b转动，与此同时，由于第一齿轮116a与第一转轴111a转动连接，第一连接部142与第一转轴111a转动连接，第一转轴111a绕第二转轴111c的转动不会使第一转轴111a自身转动，而第二连接件113与第一转轴111a固定连接，在第一转轴111a绕第三转轴111b转动时，第二连接件113会随着第一转轴111a移动。而在第一齿轮116a与第二齿轮116b啮合时，第二齿轮116b与第三转轴111b固定连接，第三转轴111b会随着第二齿轮116b的啮合，沿啮合方向随之转动，第二连接件113与第三转轴111b转动连接，以通过第二连接件113能够 保证第一齿轮116a与第二齿轮116b啮合的稳定性，避免在第一转轴111a绕第三转轴111b转动时发生位置偏移。
并且，与第二连接件113配合的第一套筒113a至少部分连接第三齿轮117a，以使第一转轴111a绕第三转轴111b转动时，第三齿轮117a与第四齿轮117b产生啮合。
该第一套筒113a和第二套筒113b内壁分别与转轴111转动连接，外壁与第二连接件113固定连接，且该第一套筒113a和第二套筒113b延伸至布置于第三齿轮117a或第四齿轮117b与转轴111的配合间隙，以使该第一套筒113a和第二套筒113b外壁分别与第三齿轮117a和第四齿轮117b固定连接，该第一套筒113a和第二套筒113b内壁与第三转轴111b转动连接。通过此种结构的配合，以通过第二连接件113和第一连接件112在第一转轴111a绕第三转轴111b转动时，第一套筒113a和第二套筒113b的转动方向与该连接的转轴111的转动方向相反，第一套筒113a和第二套筒113b的转动带动第三齿轮117a与第四齿轮117b啮合，以使啮合方向与第一齿轮组116的啮合方向相同。
由于第四齿轮117b与该第三转轴111b上的第一连接件112设有第二套筒113b，在第四齿轮117b转动时，该第二套筒113b转动，以带动该第第二连接件113转动，从而第二连接件113带动与其固定连接的第二转轴111c运动，下一组传动组119中的第一齿轮116a和第二齿轮116b啮合，以使第二转轴111c绕相邻的第三转轴111b转动。从而通过此种结构配合实现在驱动第一转轴111a或第二转轴111c上连接的第二连接件113转动时，通过齿轮组的联动，即可实现另一个转轴111上的第二连接件113同时运动，从而实现同时进行折叠。
另外，如图14所示，为了使第三转轴111b之间齿轮啮合的稳定性，通过第一连接件112与将相邻传动组119中相邻的两个转轴111连接，即第二连接件113的一端与上一传动组119中的第三转轴111b固定连接，另一端与相邻下一传动组119中的第三转轴111b固定连接，两个第三转轴111b中分别转动连接第三齿轮117a和第四齿轮117b。
在采用上实施例实现电子设备的折叠中，两端连接的显示屏和主机两者转动方向可以相同，也可以不同。在转动方向相同时，只要使一端的第一连接部142与第一齿轮组116上最外侧的齿轮固定连接，另一端的第二连接部143与第二齿轮组117上最外侧的齿轮固定连接即可。为了达到折叠效果，只要适当调整各转轴111上的齿轮齿数，同样能够达到折叠一定角度的目的，在此不做具体说明。为了满足现有的电子设备能够实现0到360度自由翻转的目的，本申请重点以显示屏和主机两者的转动方向相反做详细描述。
为了保证显示屏和主机的转动方向不同，以实现0到360度自由折叠，最外侧的两个第一齿轮组116的齿轮分别固定连接第一连接部142和第二连接部143，以通过第一齿轮组116和第二齿轮组117的联动实现显示屏和主机之间同时靠近或远离。
其中，为了实现显示屏和主机之间反向能够转动的角度相同，第一齿轮116a和第二齿轮116b的齿数相同，且分度圆相同，第三齿轮117a和第四齿轮117b的齿数相同，且分度圆相同；第三齿轮117a的分度圆大于第一齿轮116a的分度圆。
在主机与显示屏折叠0度或360时，如图20和图21所示，以四转轴111为例，第一连接部142和所述第二连接部143相互平行，第一连接部142和第一转轴111a的轴心与第三转轴111b的轴心之间的连线的夹角为m，第二连接部143和第二转轴111c的轴心与第三转轴111b的轴心之间的连线的夹角为t；第一转轴111a的轴心与第三转轴111b的轴心之间的连线与相邻第三转轴111b轴心之间的连线的夹角为n，第二转轴111c的轴心与第三转轴111b的轴心之间的连线与相邻第三转轴111b轴心之间的连线的夹角为f；第一齿轮116a和第二齿轮116b的齿数相同，且分度圆相同，第三齿轮117a和第四齿轮117b的齿数相同，且分度圆相同时，m＝t，n＝f，且m与n之和为90度。传动组119中第一齿轮116a与所述第二齿轮116b的齿数比为n：m，且第三齿轮117a与第四齿轮117b的齿数相同时，第一转轴111a、第二转轴111c和第三转轴111b转动至处于同一平 面。在折叠的电子产品中，m与n可调。
在一具体实施例中，第三转轴111b为奇数个时，位于转轴111上的齿轮组件的配合形式与偶数个时的配合形式相同，如图18所示，为齿轮组件配合的简单示意图，其具体部件的连接与配合与偶数个的原理相同，在此不做赘述。
在上述具体实施例中，当第三转轴111b的个数为偶数个时，转轴机构11还包括第五齿轮118，第五齿轮118设置于第二齿轮组117的端部，沿转轴111轴向，第五齿轮118用于将同一位置相邻轴之间力的传递；第五齿轮118的分度圆与第一齿轮116a和第二齿轮116b均不同。
并且，转轴机构11还包括扭力部113a；扭力部113a用于连接同一传动组119中的两个转轴111，扭力部113a的一端与设有第一齿轮116a的转轴111固定连接，另一端与设有第二齿轮116b的转轴111转动连接。通过扭力部113a的设置，在各转轴111转动时，提供摩擦扭力，以提高折叠时稳定性，确保电子设备开合效果。
其中，扭力部114包括胞套114a和胞体114b；胞套114a具有第一孔114c和第二孔114d，胞体114b套合于胞套114a的第二孔114d内，胞体114b与第二孔114d转动连接，胞体114b与转轴111转动连接，第一孔114c与转轴111固定连接。通过胞套114a与胞体114b的组合形式，提高了转动配合的效果，增强了扭力。为了进一步保证扭力部114的效果以及齿轮组件工作时适应各转轴111之间的相对位移，在第二孔114d上开有贯穿第二孔114d侧壁的第三孔114e。
另外，为了保证第一连接件142、第二连接件143与第一转轴111a和第二转轴111c转动连接的稳定性，且在第一转轴111a和第二转轴111c绕第三转轴111b转动时，产生一定的扭力，以达到较好的开合效果。如图13所示，设有驱动部115，该驱动部115包括固定连接有第一连接件142或第二连接件143的承架套115a，承架套115a开有第四孔115c，第四孔115c内配合有承架套体115b，该承架套体115b与第四孔115c转动连接，承架套体115b与第一转轴111a 或第二转轴111c固定连接，沿第四孔115c轴线方向，设有贯穿第四孔115c侧壁的第五孔115d。
在上述各部件之间所描述的转动连接和固定连接，具有多种的实现方式，如在转动连接时，两者的配合时配合部分的横截面均为圆形结构，在固定连接时，两者配合时的配合部分的横截面一者为圆形结构，另一者为方形结构。也可以为其他能够实现转动连接与固定连接的配合形式，在此不再赘述。
本申请提供一种具体实施方式，如图6和图7所示的电子设备，组成转轴组件1，通过固定连接部14将主机和显示屏之间连接。
本申请一实施例提供的电子设备中，转轴机构11为两组，分别将主机与显示屏连接。为了避免在折叠位置处有人手或某些物品的干扰，影响折叠效果以及外观的完整性，两组转轴机构11通过连接机构12连接。该连接机构12包括装饰管121、装饰盖13等。其中，如图6所示，两组转轴机构11中的转轴111之间设置装饰管121，未与装饰管121连接的另一端转轴111设有装饰盖13，该装饰盖13的侧端面与电子设备的外侧壁平齐。该装饰盖13能够使电子设备在折叠至不同角度时，从外部看，主机与显示屏的折叠处能够平滑过渡。
更为具体的，如图7所示，装饰管121和转轴111之间的连接，还包括支撑套122和套管124，该套管124与支撑套122套接，且两者套接配合的部分通过支撑杆123固定连接，以限制套管124与支撑套122之间的相对位移。然后支撑套122的另一端连接装饰管121，套管124的另一端连接转轴111，从而实现两者之间的连接。在此需要强调的是，转轴111与装饰管121、装饰盖13可以固定连接，也可以为可拆卸连接，在此不做具体限定。其中，上述支撑套122和套管124的可拆卸连接的形式，属于本领域常规的技术手段，其具体的配合结构及装配组合形式在此不再赘述。
其中，如图7所示，转轴机构11在分别与主机和显示屏连接时，通过固定连接部14实现转轴机构11、主机和显示屏之间的连接。其中，固定连接部14包括承架141、第一连接部142和第二连接部143。具体的，转轴机构11包括转 轴111，多个转轴111沿垂直于转轴111轴线的方向顺序排布，位于外侧的两个转轴111分别连接第一连接部142和第二连接部143，以通过转轴机构11将主机和显示屏连接。为了保证转轴机构11转动时能够更好的带动主机或显示屏的动作以实现翻转，由于与转轴111连接的装饰管121会随着转轴111的运动而运动，将位于外侧的两个装饰管121通过固定支架144连接承架141，承架141的另一端分别固定连接主机和显示屏。在手动推动主机或显示屏翻转时，通过承架141、第一连接部142和第二连接部143的固定连接，将力传递至转轴机构11，以提供转轴机构11运动的力。
在一具体实施例中，如图7所示，位于最外侧的两组第一转轴111a和两个第二转轴111c之间分别通过装饰管121固定连接，承架141的一端固定连接在装饰管121上，另一端固定连接主机或显示屏。另外，第一连接部142和第二连接部143均包括多个，分别用于不同转轴111的不同连接位置，包括，第一连接部142和主机或显示屏中的一者固定连接，第二连接部143和主机或显示屏的另一者固定连接。其中，第一连接部142和第二连接部143分别与第一转轴111a和第二转轴111c的连接，包括，第一连接部142与第一转轴111a转动连接，第一连接部142与位于第一转轴111a和上的齿轮固定连接；第二连接部143与第二转轴111a转动连接，第二连接部143与位于第二转轴111a和上的齿轮固定连接。
但是其需要指出的是，本专利申请文件的一部分包含受著作权保护的内容。除了对专利局的专利文件或记录的专利文档内容制作副本以外，著作权人保留著作权。

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  1. 一种电子设备的转轴机构，其特征在于，包括：
    转轴；
    第一齿轮组，所述第一齿轮组包括啮合的第一齿轮和第二齿轮，所述第一齿轮和所述第二齿轮分别连接所述转轴，所述第一齿轮驱动与所述第一齿轮连接的所述转轴绕与所述第二齿轮连接的所述转轴转动，以形成传动组；
    第二齿轮组，所述第二齿轮组包括啮合的第三齿轮和第四齿轮，所述第三齿轮和所述第四齿轮分别连接所述转轴；
    在所述第一齿轮组的带动下，所述第三齿轮和所述第四齿轮啮合转动；和/或，所述第二齿轮组驱动另一所述传动组运动。
  2. 根据权利要求1所述的转轴机构，其特征在于，相邻的所述第一齿轮组之间无啮合。
  3. 根据权利要求2所述的转轴机构，其特征在于，沿所述转轴的轴向，所述第一齿轮组和所述第二齿轮组交错排布；
    所述第三齿轮与一个所述第二齿轮同轴，所述第三齿轮和与其同轴的所述第二齿轮的分度圆不同；
    所述第四齿轮与另一个所述第二齿轮同轴，所述第四齿轮和与其同轴的所述第二齿轮的分度圆不同。
  4. 根据权利要求3所述的转轴机构，其特征在于，所述第一齿轮和所述第二齿轮的齿数相同，且分度圆相同，所述第三齿轮和所述第四齿轮的齿数相同，且分度圆相同；
    所述第三齿轮的分度圆大于所述第一齿轮的分度圆。
  5. 根据权利要求3所述的转轴机构，其特征在于，所述第一齿轮与所述转轴转动连接，所述第二齿轮与所述转轴固定连接；
    所述第三齿轮和所述第四齿轮分别与所述转轴转动连接。
  6. 根据权利要求1-5中任一项所述的转轴机构，其特征在于，所述转轴机构还包括第一连接件，所述第一连接件与啮合的所述第三齿轮和所述第四齿轮连接的所述转轴固定连接；
    所述第一连接件用于将所述第一齿轮组的运动传递至所述第二齿轮组。
  7. 根据权利要求6所述的转轴机构，其特征在于，所述转轴机构还包括第二连接件，在所述传动组中，所述第二连接件将相邻两个所述转轴连接；
    所述第二连接件与一个所述转轴固定连接，与另一个所述转轴转动连接。
  8. 根据权利要求7所述的转轴机构，其特征在于，所述第二连接件还包括第一套筒和第二套筒；
    所述第一套筒的内壁与所述转轴转动连接，所述第一套筒的外壁与所述第三齿轮固定连接，且所述第一套筒的外壁与所述第二连接件固定连接；
    所述第二套筒的内壁与所述转轴转动连接，所述第二套筒的外壁与所述第四齿轮固定连接，且所述第二套筒的外壁与所述第二连接件固定连接。
  9. 根据权利要求1-5中任一项所述的转轴机构，其特征在于，所述转轴机构还包括扭力部；
    所述扭力部用于连接同一传动组中的两个所述转轴，所述扭力部的一端与设有所述第一齿轮的所述转轴固定连接，另一端与设有所述第二齿轮的所述转轴转动连接。
  10. 根据权利要求1-5中任一项所述的转轴机构，其特征在于，所述转轴包括第一转轴、第二转轴和第三转轴，所述第三转轴位于所述第一转轴和所述第二转轴之间；
    所述第三转轴包括多个，多个所述第三转轴顺序排布于所述第一转轴和所述第二转轴之间。
  11. 根据权利要求10所述的转轴机构，其特征在于，所述转轴机构还包括第一连接部和第二连接部；
    所述转轴个数为奇数，所述第一连接部与所述第一齿轮组固定连接，所 述第二连接部与所述第二齿轮组固定连接，以使所述第一连接部和所述第二连接部转动方向相反。
  12. 根据权利要求10所述的转轴机构，其特征在于，所述转轴机构还包括第一连接部和第二连接部；
    所述转轴个数为偶数，所述第一连接部和所述第二连接部均与所述第一齿轮组固定连接，以使所述第一连接部和所述第二连接部转动方向相反。
  13. 根据权利要求12所述的转轴机构，其特征在于，所述转轴机构还包括第五齿轮，所述第五齿轮设置于所述第二齿轮组的端部。
  14. 根据权利要求12所述的转轴机构，其特征在于，所述转轴个数为4个，所述第一连接部和所述第一转轴的轴心与所述第三转轴的轴心之间的连线的夹角为m，所述第二连接部和所述第二转轴的轴心与所述第三转轴的轴心之间的连线的夹角为t；
    所述第一转轴的轴心与所述第三转轴的轴心之间的连线与相邻所述第三转轴轴心之间的连线的夹角为n，所述第二转轴的轴心与所述第三转轴的轴心之间的连线与相邻所述第三转轴轴心之间的连线的夹角为f；
    所述第一齿轮和所述第二齿轮的齿数相同，且分度圆相同，所述第三齿轮和所述第四齿轮的齿数相同，且分度圆相同时，m＝t，n＝f，且m与n之和为90度。
  15. 根据权利要求14所述的转轴机构，其特征在于，所述传动组中所述第一齿轮与所述第二齿轮的齿数比为n：m，且所述第三齿轮与所述第四齿轮的齿数相同时，所述第一转轴、所述第二转轴和所述第三转轴转动至处于同一平面。
  16. 一种电子设备，包括第一部分和第二部分，所述第一部分和所述第二部分之间通过转轴机构连接，其特征在于，所述转轴机构为权利要求1-15中任一项所述的转轴机构。
PCT/CN2020/103967 2019-10-22 2020-07-24 电子设备的转轴机构及电子设备 WO2021077829A1 (zh)

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