WO2024198059A1 - 转轴机构及折叠显示装置 - Google Patents

转轴机构及折叠显示装置 Download PDF

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Publication number
WO2024198059A1
WO2024198059A1 PCT/CN2023/094518 CN2023094518W WO2024198059A1 WO 2024198059 A1 WO2024198059 A1 WO 2024198059A1 CN 2023094518 W CN2023094518 W CN 2023094518W WO 2024198059 A1 WO2024198059 A1 WO 2024198059A1
Authority
WO
WIPO (PCT)
Prior art keywords
cam
sliding guide
rotating shaft
synchronous slider
shaft mechanism
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2023/094518
Other languages
English (en)
French (fr)
Inventor
郑秉文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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 Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to KR1020237041233A priority Critical patent/KR20240146537A/ko
Priority to US18/275,057 priority patent/US12487639B2/en
Publication of WO2024198059A1 publication Critical patent/WO2024198059A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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 OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • 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
    • 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
    • H04M1/0235—Slidable or telescopic telephones, i.e. with a relative translation movement of the body parts; Telephones using a combination of translation and other relative motions of the body parts
    • H04M1/0237—Sliding mechanism with one degree of freedom

Definitions

  • the present invention relates to the technical field of display panel design and manufacturing, and in particular to a hinge mechanism and a folding display device.
  • foldable terminal products are gradually being launched by major terminal manufacturers because they can be bent to a certain extent, and the size and shape of the product can be changed or reduced during the bending process, thereby effectively reducing the size of the product and making it more convenient to carry or use.
  • foldable terminal products are often achieved through a bendable shaft.
  • the existing shafts are basically composed of a track realization mechanism, a synchronization mechanism, and a torque realization mechanism that are independently or in combination. As a result, the existing shaft mechanism has more shaft parts, a larger weight, and a complex assembly process.
  • the rotation effect is not ideal, which is not conducive to the simplification of the display panel structure and the requirements for thin and light settings.
  • the hinge mechanism in the folding device prepared in the prior art has a complex structure and the rotation effect of the hinge structure is not ideal, which is not conducive to further improving the comprehensive performance of the folding display device.
  • embodiments of the present invention provide a hinge mechanism and a folding display device, which can effectively improve the problem that the internal rotating mechanism structure of the folding display device prepared in the prior art is relatively complex and the rotating effect is not ideal.
  • an embodiment of the present invention provides a rotating shaft mechanism, comprising:
  • a support frame wherein a receiving cavity is provided in the support frame
  • a synchronous slider slidably disposed in the accommodating cavity
  • the fixing plate being rotatably connected to the synchronous slider;
  • a cam assembly wherein the cam assembly is correspondingly arranged on the support frame and the synchronous slider;
  • the fixing plate when the fixing plate rotates, the fixing plate provides a driving force to the synchronous slider, so that the synchronous slider slides in the accommodating cavity along a direction parallel to the axis of the support frame, and drives the cam assembly on the synchronous slider to slide on the cam assembly on the support frame;
  • the cam assembly includes a first cam and a second cam
  • the first cam is correspondingly arranged on the inner wall of the accommodating cavity and is arranged toward one side of the synchronous slider
  • the second cam is arranged on the synchronous slider and is arranged toward the inner wall of one side of the accommodating cavity
  • the climbing angles at the raised parts of the first cam and the second cam are set to 35° ⁇ 75°.
  • the outer contour surface of the first cam contacts the outer contour surface of the second cam, and when the rotating shaft mechanism rotates, the second cam slides on the outer contour surface of the first cam.
  • a second aspect of the embodiments of the present invention further provides a rotating shaft mechanism, comprising:
  • a support frame wherein a receiving cavity is provided in the support frame
  • a synchronous slider slidably disposed in the accommodating cavity
  • the fixing plate being rotatably connected to the synchronous slider;
  • a cam assembly wherein the cam assembly is correspondingly arranged on the support frame and the synchronous slider;
  • the fixed plate When the fixed plate rotates, the fixed plate provides a driving force to the synchronous slider, so that the synchronous slider slides in the accommodating cavity along a direction parallel to the axis of the support frame, and drives the cam assembly on the synchronous slider to slide on the cam assembly on the support frame.
  • the cam assembly includes at least one first cam and at least one second cam;
  • the first cam is correspondingly arranged on the inner side wall of the accommodating cavity and is arranged toward one side of the synchronous slider
  • the second cam is arranged on the synchronous slider and corresponds to the first cam
  • the second cam further comprises a protruding portion, an alignment portion and an alignment hole
  • the protrusion is arranged on the alignment portion, and the alignment hole is arranged on a side wall of the alignment portion.
  • the convex portion of the first cam contacts the convex portion of the second cam and forms a contact area
  • an area of the contact region corresponding to the first moment is different from an area of the contact region corresponding to the second moment.
  • the synchronous slider further includes an elastic member, the outer contour surface of the first cam contacts the outer contour surface of the second cam, and when the shaft mechanism rotates, the second cam slides on the outer contour surface of the first cam.
  • the synchronous slider is further provided with a mounting groove, and a connecting member is provided in the mounting groove;
  • the second cam is correspondingly arranged in the connecting member, and the protruding portion of the second cam faces the first cam.
  • the synchronous slider further includes an elastic member, which is disposed on the connecting member and is used to provide a restoring elastic force to the second cam.
  • the synchronous slider further includes at least one notch, and the notch is arranged corresponding to the first cam.
  • At least one sliding guide groove is further provided on the synchronous slider, and the sliding guide groove includes a first sliding guide groove and a second sliding guide groove, and at least one sliding guide rail is further provided on the fixing plate;
  • the sliding guide rail is rotatably arranged in the sliding guide groove, and during the rotation process, the sliding guide rail is used to provide driving force to the synchronous sliding block.
  • the central axis of the first sliding guide groove and the extension direction of the central axis of the synchronous slider have a first angle
  • the central axis of the second sliding guide groove and the extension direction of the central axis of the synchronous slider have a second angle
  • first angle and the second angle are both set to 40°-50°.
  • the sliding guide groove further includes a first opening portion, a second opening portion and a third opening portion
  • the first opening is arranged at a side edge close to the synchronous slider, and the second opening is arranged between the first opening and the third opening.
  • the opening widths corresponding to the first opening portion and the third opening portion are greater than the opening width of the second opening portion.
  • the sliding guide rail on the fixing plate is arranged from the side edge of the fixing plate to the central axis corresponding to the width direction of the fixing plate.
  • the sliding guide groove and the sliding guide rail are both spirally arranged, and the sliding guide rail is slidably arranged in the sliding guide groove.
  • the rotating shaft mechanism rotates, the sliding guide rail slides in the sliding guide groove and drives the synchronous slider to move along the axis of the support frame.
  • the helical angle of the sliding guide rail is set to 30°-60°.
  • one end of the sliding guide rail away from the edge of the synchronous slider is located in the third opening portion of the sliding guide groove, and the second cam is located on the side wall of the protruding portion of the first cam.
  • a foldable display device comprising:
  • the second middle frame being arranged on one side of the first middle frame
  • the hinge mechanism provided in the embodiment of the present application is arranged between the first middle frame and the second middle frame, and the first middle frame and the second middle frame are connected by the hinge mechanism;
  • a flexible display panel wherein the flexible display panel covers the first middle frame, the second middle frame and the hinge mechanism.
  • the hinge mechanism includes a first hinge mechanism and a second hinge mechanism, the first hinge mechanism is connected to the side edges of the first middle frame and the second middle frame on the same side, and the second hinge mechanism is connected to the opposite side edges of the first middle frame and the second middle frame on the same side;
  • the folding display device further includes a support plate, which is disposed between the first rotating shaft mechanism and the second rotating shaft mechanism, and the flexible display panel is disposed on the support plate.
  • the hinge mechanism includes a support frame, a synchronous slider, a fixed plate and a cam assembly.
  • a receiving groove is provided in the support frame
  • the synchronous slider is provided in the receiving groove
  • a sliding guide groove is provided on the synchronous slider.
  • the fixed plate is correspondingly provided in the sliding guide groove and is rotatably connected with the synchronous slider.
  • the movement of the synchronous slider is limited by the two corresponding cam assemblies, thereby realizing the bending of the display panel.
  • the structure of the hinge mechanism is effectively simplified, and the bending effect and comprehensive performance of the folding device are improved.
  • FIG1 is a schematic structural diagram of a foldable display device provided in an embodiment of the present application.
  • FIG2 is a schematic top view of a foldable display device provided in an embodiment of the present application.
  • FIG3 is a side view of a foldable display device provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of the structure of the support frame provided in an embodiment of the present application.
  • FIG5 is a schematic top view of the synchronization slider provided in an embodiment of the present application.
  • FIG6 is a front view of a synchronization slider provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of the cooperation between the first cam and the second cam provided in an embodiment of the present application.
  • FIG8 is a side view of the second cam provided in an embodiment of the present application.
  • FIG9 is a schematic diagram of the structure of a fixing plate provided in an embodiment of the present application.
  • FIG10A is another schematic diagram of the structure of a fixing plate provided in an embodiment of the present application.
  • FIG10B is another schematic diagram of the structure of a fixing plate provided in an embodiment of the present application.
  • FIG11 is a partial assembly diagram of a rotating shaft mechanism provided in an embodiment of the present application.
  • FIG12 is a side view of the synchronization slider provided in an embodiment of the present application.
  • FIG13 is a schematic diagram of an explosion effect of the foldable display device provided in an embodiment of the present application.
  • FIG14 is a schematic structural diagram of the rotating shaft mechanism provided in an embodiment of the present application at 0°;
  • FIG15 is a schematic structural diagram of the rotating shaft mechanism provided in an embodiment of the present application at 90°;
  • FIG16 is a schematic structural diagram of the rotating shaft mechanism provided in an embodiment of the present application at a corresponding position between 0° and 90°;
  • FIG17 is a first structural schematic diagram of the foldable display device provided in an embodiment of the present application.
  • FIG. 18 is a second structural schematic diagram of the foldable display device provided in an embodiment of the present application.
  • a foldable display panel usually achieves a bending effect of the device through a hinge mechanism, but the structure of the hinge mechanism designed in the prior art and the movement relationship between them are relatively complex, resulting in an unsatisfactory bending effect, which is not conducive to further improving the comprehensive performance of the foldable display panel and the device.
  • the embodiments of the present application provide a hinge mechanism and a folding display device to effectively improve the structural complexity and bending effect of the existing hinge mechanism and folding display panel, thereby effectively improving the overall performance of the device.
  • FIG1 is a schematic diagram of the structure of a foldable display device provided in an embodiment of the present application.
  • the foldable display device includes a support frame 100 , a synchronous slider 101 , a cam assembly 102 and a fixing plate 103 .
  • a receiving cavity is provided in the support frame 100 , and the synchronous slider 101 is provided in the receiving cavity.
  • the synchronous slider 101 can move in the receiving cavity.
  • the fixing piece 103 is arranged on the synchronous slider 101, and when setting, the fixing piece 103 is rotationally connected with the synchronous slider 101, that is, the fixing piece 103 can rotate relative to the synchronous slider 101.
  • a corresponding sliding guide groove is arranged on the upper surface of the synchronous slider 101, and when the folding display device is folded, the fixing piece 103 rotates in the sliding guide groove, thereby realizing the folding or bending of the display device.
  • a cam assembly 102 is further provided in the rotating shaft mechanism.
  • the cam assembly 102 is respectively provided on the support frame 100 and the synchronous slider 101.
  • it is provided on the inner wall of the accommodating cavity of the support frame 100, or on two opposite inner walls.
  • the cam assembly 102 is also provided on the synchronous slider 101 at the position corresponding to the support frame 100.
  • FIG. 2 is a schematic top view of a folding display device provided in an embodiment of the present application
  • FIG. 3 is a side view of a folding display device provided in an embodiment of the present application.
  • the fixing sheet 103 can be provided in two pieces, such as a first fixing sheet 103a and a second fixing sheet 103b.
  • the first fixing plate 103a and the second fixing plate 103b are both arranged on the synchronous slider 101, and when arranged, the first fixing plate 103a and the second fixing plate 103b are respectively arranged on both sides of the central axis OO' of the support frame 100, and there is a certain gap between the first fixing plate 103a and the second fixing plate 103b, so as to prevent the first fixing plate 103a and the second fixing plate 103b from interfering with each other during the rotation process and ensure that the two different fixing plates can rotate normally.
  • FIG. 4 is a schematic diagram of the structure of the support frame 100 provided in the embodiment of the present application.
  • the support frame 100 when the above-mentioned support frame 100 is set, the support frame 100 also includes a accommodating cavity 1002, and the accommodating cavity 1002 can be set in the middle of the support frame 100, such as digging a groove on the main body of the support frame 100, and forming an accommodating cavity 1002 with a certain depth and length.
  • the support frame 100 has a first side wall 1001 and a second side wall 1003.
  • the first side wall 1001 and the second side wall 1003 have the same height and thickness, so as to ensure that the support frame 100 has good symmetry and the comprehensive performance of the folding device.
  • the support frame 100 further includes at least one stopper 100a, which is disposed on the first side wall 1001, or the stopper 100a is disposed on the second side wall 1003. Since the synchronization slider 101 is disposed in the accommodating cavity 1002, when the synchronization slider 101 slides in the accommodating cavity 1002, the stopper 100a can limit the synchronization slider 101, thereby preventing the synchronization slider 101 from sliding out of the accommodating cavity 1002, which would cause the folding display panel to fail to work properly.
  • the block 100a is set at a position close to the cam assembly 102, so as to achieve a better blocking effect.
  • the cam assembly when the cam assembly 102 is provided, the cam assembly may include a first cam 1021 and a second cam 1022.
  • the first cam 1021 and the second cam 1022 may be provided in plurality.
  • two first cams 1021 and two second cams 1022 are provided as an example for explanation.
  • the first cam 1021 is arranged on the inner side wall of the accommodating cavity 1002 of the support frame 100.
  • the first cam 1021 is respectively arranged on the first side wall 1001 and the second side wall 1003, and the first cam is arranged toward the side of the synchronous slider.
  • the first cam 1021 on the first side wall 1001 and the first cam 1021 on the second side wall 1003 can be arranged in a staggered manner, as shown in the arrangement position in FIG. 4 for details.
  • a plurality of the first cams 1021 may be arranged at intervals on the first side wall 1001 and the second side wall 1003.
  • the first cam 1021 may act on the synchronization slider 101, thereby providing resistance to the synchronization slider 101 and controlling the unfolding or closing of the folding display device.
  • a side retaining wall 100c is also provided on the support frame 100.
  • the side retaining wall 100c is provided on one side of the accommodating cavity 1002.
  • the side retaining wall 100c is provided at one end of the support frame 100 and is provided on the first side wall 1001 and the second side wall 1003.
  • the side retaining wall 100c is provided so that the end of the support frame is flush with other mechanisms.
  • Figure 5 is a schematic top view of the synchronous slider provided in the embodiment of the present application
  • Figure 6 is a front view of the synchronous slider provided in the embodiment of the present application.
  • the sliding guide groove 104 is described by taking the first sliding guide groove 104a and the second sliding guide groove 104b as examples. Among them, the shape and structure of the first sliding guide groove 104a can be set to be the same as the second sliding guide groove 104b.
  • the sliding guide grooves 104 can be directly provided on the synchronous slider 101.
  • the sliding guide grooves 104 have a certain depth on the synchronous slider 101, and no through hole is formed on the thickness of the synchronous slider.
  • the first sliding guide groove 104a and the second sliding guide groove 104b are centrally symmetrically provided with respect to a point on the central axis H3 of the synchronous slider 101.
  • the first sliding guide groove 104a and the second sliding guide groove 104b are both inclined with respect to the central axis H3 of the synchronous slider 101, such as the first sliding guide groove 104a and the second sliding guide groove 104b are both at a certain angle with respect to the central axis H3 of the synchronous slider 101, and the angle is non-right angle.
  • the sliding guide groove may include a first opening portion 1041, a second opening portion 1042 and a third opening portion 1043.
  • the first opening portion 1041 and the third opening portion 1043 are respectively openings on both sides of the sliding guide groove
  • the second opening portion 1042 is provided between the first opening portion 1041 and the third opening portion 1043
  • the second opening portion 1042 is the main sliding part of the sliding guide groove, wherein the opening width corresponding to the first opening portion 1041 and the third opening portion 1043 is greater than the opening width corresponding to the second opening portion 1042.
  • the fixed plate slides in the sliding guide groove, it mainly slides back and forth in the guide groove parts corresponding to the first opening portion 1041, the second opening portion 1042 and the third opening portion 1043. Since the above-mentioned sliding guide grooves are all inclined relative to the central axis H3 of the synchronous slider 101, during the sliding process, the fixed plate will provide a force along the axial direction to the synchronous slider 101. Under the action of the force driving force F1, the synchronous slider 101 will move back and forth in the F1 direction, thereby realizing the folding function.
  • the caliber of the opening corresponding to the first opening portion 1041 and the third opening portion 1043 may be larger than the caliber of the second opening portion 1042.
  • the sliding guide groove is set as a spiral structure. See Figure 6 for details.
  • the second sliding guide groove 104b is set from the first opening portion 1041 at the bottom to the third opening portion 1043 at the top, and the spiral rises. That is, the central axis H2 corresponding to the second sliding guide groove 104b is an arc, and the arc is concave downward.
  • the size of the spiral angle corresponding to the sliding guide groove of the spiral structure is set to 30° ⁇ 60°.
  • the spiral angle of the sliding guide groove is set to 45°, 55°, or set according to demand.
  • the first sliding guide groove 104a is close to the side of the central axis H3 of the synchronous slider 101, and the central axis H1 of the first sliding guide groove 104a and the central axis H3 of the synchronous slider have a first angle ⁇ 1.
  • the second sliding guide groove 104b is close to the side of the central axis H3 of the synchronous slider 101, and the axis H2 of the second sliding guide groove 104b and the central axis H3 of the synchronous slider have a second angle ⁇ 2.
  • the first angle ⁇ 1 and the second angle ⁇ 2 are set to the same size.
  • the first angle ⁇ 1 and the second angle ⁇ 2 can be set to between 40° and 50°, such as the first angle ⁇ 1 and the second angle ⁇ 2 are both set to 45°.
  • the size of the first angle ⁇ 1 and the second angle ⁇ 2 the helicity of the helical angle of the sliding guide groove is changed, thereby providing different sliding forces to the synchronous slider 101 and achieving different folding effects of the folding device.
  • an extended line of the central axis H1 of the first sliding guide groove 104a and the central axis H2 of the second sliding guide groove 104b also have an angle, such as defined as a third angle.
  • the magnitude of the third angle is twice the corresponding angle value of the first angle ⁇ 1 or the second angle ⁇ 2.
  • the third angle is set to parameter values such as 80°, 100°, etc., to achieve different relative positional relationships between the two sliding guide grooves and ensure that the folding device has a better folding effect.
  • the synchronous slider 101 when the synchronous slider 101 is provided, the synchronous slider 101 further includes at least one notch 104e.
  • the notch 104e is correspondingly provided at the position of the first cam 1021. Since the first cam 1021 is provided in two numbers, the notch 104e is correspondingly provided as two notches, and the two different notches 104e are respectively provided on both sides of the synchronous slider 101.
  • the opening width of the notch 104e is greater than the height of the first cam 1021, wherein, with the direction parallel to the top of the first cam, such as the horizontal direction, as a reference, the opening depth of the notch 104e is the lateral width, and the height of the first cam is the height of its protrusion in the horizontal direction. Since the synchronous slider needs to reciprocate in the support frame 100 during the rotation of the rotating shaft, the notch 104e is provided to provide an avoidance space for the cam assembly, and ensure that the cam assembly moves normally in the notch 104e.
  • FIG12 is a side view of the synchronous slider provided in the embodiment of the present application.
  • a mounting groove 104d is further provided at the bottom of the synchronous slider 101.
  • the mounting groove 104d can be provided at a position corresponding to the notch 104e, and the mounting groove 104d is provided toward the outside of the notch.
  • a mounting groove 104d is provided at each notch 104e.
  • a connecting member is also provided in the mounting groove 104d, and the connecting member is fixedly provided on the synchronous slider 101 and is used to fix other components.
  • the connecting member is described by taking the fixing pin 104f as an example.
  • the installation direction of the fixing pin 104f is the same as the direction of the mounting groove 104d.
  • the length of the fixing pin 104f is greater than the length of the installation slot 104d, and extends out of the installation slot 104d by a certain length, thereby ensuring the fixing effect of the fixing pin 104f.
  • the cam assembly 102 further includes a second cam 1022.
  • the second cam 1022 is correspondingly arranged at the first cam 1021, such as the second cam is arranged on the synchronous slider and is arranged toward the inner side wall of one side of the accommodating cavity.
  • an elastic member 666 is also provided on the fixing pin 104f.
  • the elastic member 666 is described by taking a spring as an example, or other elastic members with certain restoring properties are selected.
  • the elastic member 666 is provided between the second cam 1022 and the synchronous slider 101.
  • the second cam 1022 is inserted into the fixing pin 104f in the installation slot 104d for fixing, and the elastic member 666 is compressed.
  • the first cam 1021 is in contact with the second cam 1022. Since the elastic member 666 provides elasticity to the second cam 1022, and the first cam 1021 provides a pressure in the opposite direction to the second cam 1022, the first cam 1021 and the second cam 1022 cooperate with each other.
  • the second cam 1022 reciprocates on the first cam 1021 at the same time.
  • Figure 7 is a schematic diagram of the cooperation between the first cam and the second cam provided in the embodiment of the present application
  • Figure 8 is a side view of the second cam provided in the embodiment of the present application.
  • the first cam 1021 and the second cam 1022 are a set of cams, so the structure of the first cam 1021 is the same as the structure of the outer contour surface of the second cam 1022, and the first cam 1021 and the second cam 1022 are meshed and slide relative to each other. See Figure 7 for details.
  • the structure of the second cam 1022 can be referred to for setting, and no further details are given here.
  • the second cam 1022 when the second cam 1022 is set, the second cam 1022 includes a protruding portion 102b, an alignment portion 102c and an alignment hole 102a.
  • the protruding portion 102b is set on the alignment portion 102c
  • the alignment hole 102a is set on the alignment portion 102c, such as being set on a side wall of the alignment portion 102c.
  • the protruding portion 102b is the main contact surface of the cam during the relative sliding process.
  • the alignment portion 102c is installed in the installation groove 104d of the synchronous slider 101, and the alignment hole 102a is aligned with the fixing pin 104f, and the second cam 1022 is sleeved on the fixing pin 104f, thereby realizing the installation and fixation of the second cam 1022.
  • the corresponding climbing angle at the raised portion 102b of the second cam 1022 is set to be between 35° and 75°, wherein the climbing angle is the acute angle formed between the plane L1 where the alignment portion 102c is located and the contour surface L2 where the raised portion 102b is located.
  • the climbing angle is set to 45°, 60°, or is set according to the size of the cam, which will not be repeated here.
  • the protrusions of different cams contact each other.
  • the outer contour surface of the protrusion of the first cam 1021 contacts the outer contour surface of the protrusion of the second cam 1022, and forms a contact area 1099.
  • the position of the contact area 1099 changes, so that the second cam 1022 slides on the outer contour surface of the first cam 1021.
  • the contact area between the outer contour surface of the second cam 1022 and the outer contour surface of the first cam 1021 will change.
  • the contact area 1099 between the first cam and the second cam is A1
  • the contact area 1099 between the first cam and the second cam is A2.
  • the contact area A1 is different from the contact area A2. If the contact area A1 ⁇ A2, then at the first moment, the elastic force of the spring is less than the elastic force at the second moment.
  • the contact area 1099 is in contact with the side wall, and at the second moment t2, the contact area 1099 moves to the top area of the two cams to contact.
  • the second cam completely compresses the elastic member 666, thereby generating a larger elastic force.
  • FIG. 11 is a partial assembly diagram of the rotating shaft mechanism provided in the embodiment of the present application.
  • the synchronous slider 101 is assembled in the support frame 100, and the first cam 1021 is in contact with the second cam 1022.
  • the synchronous slider 101 when the above-mentioned synchronous slider 101 is set, the synchronous slider 101 also includes a transition slope 777, and the transition slope 777 is correspondingly arranged between the first opening portion 1041 and the third opening portion 1043 of each sliding guide groove, and the extension direction of the transition slope 777 is in the same direction as the central axis of the synchronous slider.
  • the surfaces of the synchronous sliders corresponding to the two sides of the transition slope 777 have different heights.
  • the second cam 1022 will move from the side wall of the first cam 1021 to the step surface of the raised portion.
  • the second cam 1022 will move relative to the first cam 1021 in the horizontal direction, and the elastic member 666 in the fixing pin 104f will be compressed.
  • the elastic force generated by the elastic member 666 will prevent the further movement of the synchronous slider 101, thereby limiting the movement of the synchronous slider.
  • the second cam contacts different parts of the first cam, and the elastic member has different elastic forces, thereby realizing the automatic closing function.
  • a restoring elastic force is provided to the second cam by a spring to ensure the rotation effect of the rotating shaft mechanism.
  • the cam overlap corresponding to the contact area 1099 between the first cam 1021 and the second cam 1022 is set to 0.15mm-0.6mm, wherein the cam overlap is the length of the part where the outer contour surfaces of the first cam and the second cam fit each other.
  • the cam overlap between the first cam and the second cam is set to 0.3mm, 0.4mm or 0.5mm, so as to adjust the overlap according to different products and ensure the relative motion effect between the cam assemblies. In order to improve the rotation effect of the shaft mechanism in the embodiment of the present application.
  • Figure 9 is a schematic diagram of the structure of the fixing plate provided in the embodiment of the present application
  • Figure 10A is another schematic diagram of the structure of the fixing plate provided in the embodiment of the present application
  • Figure 10B is another schematic diagram of the structure of the fixing plate provided in the embodiment of the present application.
  • Figure 9 is a schematic diagram of the back of the fixing plate
  • Figure 10A is a side view of the fixing plate
  • Figure 10B is a schematic diagram of the front structure of the fixing plate.
  • the fixing plate 103 further includes at least one sliding guide rail 1031 and a screw hole 105 disposed on the surface of the fixing plate 103. Specifically, when the sliding guide rail 1031 is disposed, the sliding guide rail 1031 is disposed along the side edge of one side of the fixing plate 103 and spirally extends toward the middle of the fixing plate.
  • one end of the sliding guide rail 1031 is arranged at a corresponding position on the side of the fixing plate 103, and the other end of the sliding guide rail 1031 is arranged at a corresponding position in the middle of the bottom of the fixing plate 103 and fixed on the fixing plate 103.
  • the sliding guide rail 1031 is set as a spiral guide rail.
  • the sliding guide rail 1031 on the fixed sheet 103 is engaged in the corresponding sliding guide groove 104, and moves in the sliding guide groove 104 during the rotation of the rotating shaft.
  • the sliding guide rail 1031 since the sliding guide rail 1031 is matched with the sliding guide groove 104, the sliding guide rail 1031 also includes a locking groove 1032.
  • the sliding guide groove 104 is matched with the sliding guide rail 1031, and the side of the sliding guide groove 104 corresponds to the locking groove 1032 of the sliding guide rail 1031, thereby preventing the sliding guide rail 1031 from shaking during the sliding process and the problem of unsatisfactory rotation effect.
  • the sliding guide rail 1031 is set as a spiral guide rail.
  • the structure and specific parameters of the spiral guide rail can be set in combination with the structure of the sliding guide groove provided in the embodiment of the present application, and will not be described in detail here.
  • the two can be well matched and the sliding effect during the sliding process is guaranteed.
  • the sliding guide rail 1031 is correspondingly arranged in the sliding guide groove 104.
  • the fixing plate 103 will drive the corresponding sliding guide rail 1031 to move.
  • the sliding guide rail 1031 spirally moves in the sliding guide groove 104.
  • the sliding guide rail provides a driving force to the synchronous slider, so that the synchronous slider moves in the accommodating cavity along a direction parallel to the axis of the support frame, and drives the cam assembly on the synchronous slider to slide on the cam assembly on the support frame.
  • the sliding guide rail 1031 spirally moves along the sliding guide groove 104, thereby providing a lateral thrust to the synchronous slider 101, and the direction of the lateral thrust is parallel to the axis of the support frame.
  • the second cam will move on the first cam at the same time, thereby applying forces in different directions to the synchronous slider 101 and controlling the rotation effect of the rotating shaft mechanism.
  • FIG. 13 is a schematic diagram of the explosion effect of the folding display device provided in the embodiment of the present application.
  • the support frame 100, the synchronous slider 101, and the fixing plate 103 are sequentially installed at corresponding positions, and at the same time, the cam assembly 102 provided in the embodiment of the present application and the elastic member 666 corresponding to the synchronous slider 101 are installed and fixed.
  • the sliding guide rail on the fixing plate 103 and the sliding guide groove on the synchronous slider 101 are installed correspondingly, and finally the folding display device in the embodiment of the present application is formed.
  • the display panel is set on the rotating shaft mechanism, such as on the fixing plate 103.
  • the fixing plate 103 rotates relatively, the display panel is bent accordingly, thereby achieving the bending and folding effect of the display panel.
  • Figure 14 is a schematic diagram of the structure corresponding to the rotating shaft mechanism provided in the embodiment of the present application at 0°
  • Figure 15 is a schematic diagram of the structure corresponding to the rotating shaft mechanism provided in the embodiment of the present application at 90°
  • Figure 16 is a schematic diagram of the structure corresponding to the rotating shaft mechanism provided in the embodiment of the present application at corresponding positions between 0° and 90°.
  • the fixing plate 103 is in a horizontal state
  • the corresponding display panel can be in a horizontally unfolded state, and at the same time, combined with the relationship between the first cam 1021 and the second cam 1022 in FIG. 7 and the installation structure in FIG. 1, as the shaft mechanism rotates, the length of the sliding guide rail that penetrates into the sliding guide groove will increase.
  • one end of the sliding guide rail is still located at the third opening 1043, and only part of the sliding guide rail is located in the sliding guide groove.
  • the first cam 1021 is in contact with the second cam 1022, and the spring in the synchronous slider 101 is not compressed or is slightly compressed.
  • the second cam 1022 is located in the first area D1 of the first cam, and at this time, the second cam is located on the side wall of the raised portion of the first cam.
  • the fixing plate 103 rotates, the second cam 1022 will slide from the first area D1 to the second area D2 and then to the third area D3.
  • the sliding guide rail on the fixed plate 103 will rotate in the sliding guide groove in the synchronous slider.
  • the fixed plate 103 will apply an upward or downward driving force to the synchronous slider 101, and this force will cause the synchronous slider 101 to move along its axial direction.
  • the second cam slides from the first area D1 to the second area D2.
  • the angle of the fixed plate 103 relative to the surface of the synchronous slider also increases. Specifically, the angle increases from 0° to 90 degrees.
  • the second cam will continue to slide from the second area D2 to the third area D3.
  • the fixed plate shown in Figure 15 will form a 90° angle relative to the surface of the synchronous slider, or even a larger angle.
  • the second cam slides to the top surface of the first cam.
  • the contact area and contact position between the first cam 1021 and the second cam 1022 will change, and different contact positions and contact areas will bear different forces.
  • the first cam 1021 will also apply a lateral resistance to the synchronous slider 101, thereby compressing the spring in the synchronous slider 101.
  • the elastic force will prevent the movement of the synchronous slider 101.
  • the shaft mechanism realizes the functions of rotation and automatic closing.
  • the sliding track slides in the sliding guide groove, and at the same time, during the rotation of the shaft mechanism, the cam assembly further acts on the movement of each component, thereby improving the rotation effect of the shaft mechanism in the embodiment of the present application. Furthermore, in the embodiment of the present application, the combined action of the above-mentioned synchronous slider and the cam assembly effectively improves the comprehensive performance of the folding display device.
  • a folding display device is also provided in the embodiment of the present application.
  • Figure 17 is a first structural schematic diagram of the folding display device provided in the embodiment of the present application
  • Figure 18 is a second structural schematic diagram of the folding display device provided in the embodiment of the present application.
  • the folding display device when the folding display device is set, it includes a first middle frame 997, a second middle frame 998, a hinge mechanism 99, a support plate 994, and a flexible display panel 999.
  • the first middle frame 997 is arranged on one side of the second middle frame 998
  • the hinge mechanism 99 is arranged between the first middle frame 997 and the second middle frame 998
  • the first middle frame 997 is connected to the second middle frame 998 through the hinge mechanism 99, so that when the folding device is folded, the first middle frame 997 rotates relative to the second middle frame 998.
  • the rotating shaft mechanism 99 may include a first rotating shaft mechanism 995 and a second rotating shaft mechanism 996, wherein the first rotating shaft mechanism 995 is arranged relative to the second rotating shaft mechanism 996, such as being arranged at two opposite sides.
  • the first rotating shaft mechanism 995 is connected to the side a corresponding to the first middle frame 997 and the second middle frame 998
  • the second rotating shaft mechanism 996 is connected to the side b of the other side corresponding to the first middle frame 997 and the second middle frame 998.
  • the folding display device also includes a support plate 994 and a flexible display panel 999.
  • the support plate 994 is disposed between the first rotating shaft mechanism 995 and the second rotating shaft mechanism 996.
  • the two sides of the support plate 994 are connected to the fixed sheet 103 of the rotating shaft mechanism, and when the fixed sheet 103 is turned over, the support plate 994 is driven to rotate.
  • the support plate 994 can fill the suspended area between the first rotating shaft mechanism 995 and the second rotating shaft mechanism 996 on the one hand, and on the other hand, it can also play a supporting role.
  • the flexible display panel 999 is arranged on the support plate 994, and the flexible display panel 999 covers the first middle frame 997, the second middle frame 998, the hinge mechanism 99 and the support plate 994.
  • the first middle frame 997 rotates toward one side of the second middle frame 998 through the hinge mechanism 99, and drives the flexible display panel to bend, and finally realizes the folding and unfolding of the flexible display panel 999.
  • the foldable display device may be any foldable or touch-operated product or component such as a mobile phone, a computer, an electronic paper, a display, a laptop computer, a digital photo frame, etc., and its specific type is not specifically limited.

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Abstract

一种转轴机构及折叠显示装置。转轴机构包括支撑架（100）、同步滑块（101）、固定片（103）以及凸轮组件（102）。滑动导轨（1031）与同步滑块（101）转动连接，固定片（103）转动时，滑动导轨（1031）向同步滑块（101）提供驱动力，使同步滑块（101）在容纳腔内沿着与支撑架（100）的轴线相平行的方向运动，并带动凸轮组件（102）相对滑动，实现装置的弯折。简化转轴的结构，并提高弯折效果。

Description

转轴机构及折叠显示装置 技术领域
本发明涉及显示面板的设计及制造技术领域，尤其涉及一种转轴机构及折叠显示装置。
 背景技术
随着显示面板制备技术的发展，人们对显示面板及显示装置的显示效果以及综合性能均提出了更高的要求。
折叠终端产品作为高端显示产品，由于其可在一定的程度上进行弯折，且在弯折的过程中可将产品的尺寸形状进行改变或者缩小，进而有效的降低了产品的尺寸，更加方便认识携带或者使用，而逐渐被各终端大厂推出。为了实现装置的弯折功能，折叠终端产品往往通过可弯折转轴实现，现有的转轴基本上都是由轨道实现机构、同步机构以及扭力实现机构独立或者搭配设置所组成，进而导致现有转轴机构中的转轴零部件较多，重量较大，且组装工艺复杂，转动效果不理想，不利于显示面板结构的简化以及轻薄化设置的要求。
因此需要对现有技术中的问题提出解决方法。
 发明概述
综上所述，现有技术中制备的折叠装置内的转轴机构，结构较复杂，同时转轴结构转动效果不理想，不利于折叠显示装置综合性能的进一步提高。
为解决上述问题，本发明实施例提供一种转轴机构及折叠显示装置，以有效的改善现有技术中制备形成的折叠显示装置内部转动机构结构较复杂，且转动效果不理想的问题。
为解决上述技术问题，本发明实施例提供一种转轴机构，包括：
支撑架，所述支撑架内设置有一容纳腔；
同步滑块，可滑动的设置在所述容纳腔内；
固定片，所述固定片与所述同步滑块转动连接；以及，
凸轮组件，所述凸轮组件对应设置在所述支撑架以及所述同步滑块上；
其中，当所述固定片转动时，所述固定片向所述同步滑块提供驱动力，使得所述同步滑块在所述容纳腔内沿着与所述支撑架的轴线相平行的方向滑动，并带动所述同步滑块上的所述凸轮组件在所述支撑架上的所述凸轮组件上滑动；
其中，所述凸轮组件包括第一凸轮以及第二凸轮，所述第一凸轮对应设置在所述容纳腔的内侧壁上，并朝向所述同步滑块一侧设置，所述第二凸轮设置在所述同步滑块上，并朝向所述容纳腔一侧的所述内侧壁设置，且所述第一凸轮以及所述第二凸轮的凸起部处的爬坡角设置为35°~75°。
根据本发明一实施例，所述第一凸轮的外轮廓面与所述第二凸轮的外轮廓面相接触，且当所述转轴机构转动时，所述第二凸轮在所述第一凸轮的外轮廓面上滑动。
本发明实施例的第二方面，还提供一种转轴机构，包括：
支撑架，所述支撑架内设置有一容纳腔；
同步滑块，可滑动的设置在所述容纳腔内；
固定片，所述固定片与所述同步滑块转动连接；以及，
凸轮组件，所述凸轮组件对应设置在所述支撑架以及所述同步滑块上；
其中，当所述固定片转动时，所述固定片向所述同步滑块提供驱动力，使得所述同步滑块在所述容纳腔内沿着与所述支撑架的轴线相平行的方向滑动，并带动所述同步滑块上的所述凸轮组件在所述支撑架上的所述凸轮组件上滑动。
根据本发明一实施例，所述凸轮组件包括至少一第一凸轮以及至少一第二凸轮；
其中，所述第一凸轮对应设置在所述容纳腔的内侧壁上，并朝向所述同步滑块一侧设置，所述第二凸轮设置在所述同步滑块上，并与所述第一凸轮对应。
根据本发明一实施例，所述第二凸轮还包括凸起部、对位部以及对位孔；
其中，所述凸起部设置在所述对位部上，且所述对位孔设置在所述对位部的一侧壁上。
根据本发明一实施例，所述第一凸轮的凸起部与所述第二凸轮的凸起部相接触并形成一接触区域；
其中，所述转轴机构从第一时刻转动到第二时刻过程中，所述第一时刻对应的所述接触区域的面积，与所述第二时刻对应的所述接触区域的面积不同。
根据本发明一实施例，所述同步滑块还包括弹性件，所述第一凸轮的外轮廓面与所述第二凸轮的外轮廓面相接触，且当所述转轴机构转动时，所述第二凸轮在所述第一凸轮的外轮廓面上滑动。
根据本发明一实施例，所述同步滑块上还设置有一安装槽，在所述安装槽内设置有一连接件；
其中，所述第二凸轮对应设置在所述连接件内，所述第二凸轮的凸起部朝向所述第一凸轮。
根据本发明一实施例，所述同步滑块还包括弹性件，所述弹性件设置于所述连接件上，并用以向所述第二凸轮提供一恢复弹力。
根据本发明一实施例，所述同步滑块还包括至少一缺口，所述缺口对应所述第一凸轮设置。
根据本发明一实施例，所述同步滑块上还设置有至少一滑动导槽，所述滑动导槽包括第一滑动导槽以及第二滑动导槽，所述固定片上还设置有至少一滑动导轨；
其中，所述滑动导轨可转动的设置于所述滑动导槽内，且在转动过程中，所述滑动导轨用以向所述同步滑块提供驱动力。
根据本发明一实施例，所述第一滑动导槽的中轴线与所述同步滑块的中轴线的延伸方向具有第一夹角，所述第二滑动导槽的中轴线与所述同步滑块的中轴线的延伸方向具有第二夹角；
其中，所述第一夹角以及所述第二夹角均设置为40°-50°。
根据本发明一实施例，所述滑动导槽还包括第一开口部、第二开口部以及第三开口部；
所述第一开口部设置在靠近所述同步滑块的一侧边缘，所述第二开口部设置在所述第一开口部与所述第三开口部之间。
根据本发明一实施例，所述第一开口部以及所述第三开口部对应的开口宽度，大于所述第二开口部的开口宽度。
根据本发明一实施例，所述固定片上的滑动导轨从所述固定片的侧边至所述固定片宽度方向对应的中轴线处设置。
根据本发明一实施例，所述滑动导槽以及所述滑动导轨均螺旋设置，且所述滑动导轨滑动设置于所述滑动导槽内，当所述转轴机构转动时，所述滑动导轨在所述滑动导槽内滑动，并驱使所述同步滑块沿着所述支撑架的轴线运动。
根据本发明一实施例，所述滑动导轨的螺旋角度设置为30°-60°。
根据本发明一实施例，所述转轴机构展平状态时，所述滑动导轨远离所述同步滑块边缘的一端位于所述滑动导槽的第三开口部内，且所述第二凸轮位于所述第一凸轮的凸起部的侧壁上。
根据本发明实施例的第三方面，还提供一种折叠显示装置，包括：
第一中框；
第二中框，所述第二中框设置在所述第一中框的一侧；
本申请实施例中提供的转轴机构，所述转轴机构设置在所述第一中框与所述第二中框之间，且所述第一中框与所述第二中框通过所述转轴机构连接；以及，
柔性显示面板，所述柔性显示面板覆盖在所述第一中框、所述第二中框以及所述转轴机构上。
根据本发明一实施例，所述转轴机构包括第一转轴机构和第二转轴机构，所述第一转轴机构与同侧的所述第一中框和所述第二中框的侧边连接，所述第二转轴机构与同侧的所述第一中框和所述第二中框的相对所述侧边连接；
所述折叠显示装置还包括支撑板，所述支撑板设置在所述第一转轴机构与所述第二转轴机构之间，且所述柔性显示面板设置在所述支撑板上。
有益效果
综上所述，本发明实施例的有益效果为：
本发明实施例的有益效果：相比现有技术，本申请实施例提供一种转轴机构及折叠显示装置。该转轴机构包括支撑架、同步滑块、固定片以及凸轮组件。其中，支撑架内设置有一容纳槽，同步滑块设置在该容纳槽内，且同步滑块上设置有滑动导槽，固定片对应设置在滑动导槽内，并与同步滑块转动连接，当固定片相对同步滑块转动时，同步滑块在容纳腔内沿着支撑架的轴线方向运动，且同步滑块上的凸轮组件在支撑架上的凸轮组件上滑动，通过两对应的凸轮组件对同步滑块的运动进行限定，从而实现对显示面板的弯折。本申请实施例中，通过设置同步滑块以及对应的凸轮组件，从而有效的简化转轴机构的结构，并提高折叠装置的弯折效果以及综合性能。
 附图说明
图1为本申请实施例中提供的折叠显示装置的结构示意图；
图2为本申请实施例中提供的折叠显示装置的俯视示意图；
图3为本申请实施例提供的折叠显示装置的侧视图；
图4为本申请实施例中提供的该支撑架的结构示意图；
图5为本申请实施例中提供的该同步滑块的俯视示意图；
图6为本申请实施例中提供的同步滑块的正视图；
图7为本申请实施例提供的该第一凸轮与第二凸轮配合示意视图；
图8为本申请实施例提供的该第二凸轮的侧视图；
图9为本申请实施例提供的固定片的结构示意图；
图10A为本申请实施例提供的固定片的另一结构示意图；
图10B为本申请实施例提供的固定片的又一结构示意图；
图11为本申请实施例中提供的转轴机构的部分装配示意图；
图12为本申请实施例中提供的该同步滑块的侧视图；
图13为本申请实施例提供的该折叠显示装置的爆炸效果示意图；
图14为本申请实施例中提供的该转轴机构在0°时候对应的结构示意图；
图15为本申请实施例中提供的该转轴机构在90°时对应的结构示意图；
图16为本申请实施例中提供的该转轴机构在0°-90°之间对应位置处对应的结构示意图；
图17为本申请实施例中提供的该折叠显示装置的第一结构示意图；
图18为本申请实施例中提供的该折叠显示装置的第二结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本揭示可用以实施的特定实施例。
随着显示面板制备技术的不断发展，人们对显示面板及显示装置的性能以及显示效果均提出了更高的要求。
折叠显示面板通常通过转轴机构以实现装置的弯折效果，但是现有技术中设计的转轴机构的结构以及相互之间的运动关系较复杂，弯折效果不理想，不利于折叠显示面板及装置综合性能的进一步提高。
本申请实施例提供一种转轴机构及折叠显示装置，以有效的改善现有的转轴机构及折叠显示面板的结构复杂性以及弯折效果，进而有效的提高装置的综合性能。
如图1所示，图1为本申请实施例中提供的折叠显示装置的结构示意图。该折叠显示装置包括支撑架100、同步滑块101、凸轮组件102以及固定片103。
具体的，该支撑架100内设置有一容纳腔，该同步滑块101设置在该容纳腔内，当折叠显示装置发生折叠或者弯曲时，该同步滑块101可在该容纳腔内运动。
进一步的，该固定片103设置在该同步滑块101上，在进行设置时，该固定片103与该同步滑块101转动连接，即固定片103可相对该同步滑块101转动。可选的，在进行设置时，在该同步滑块101的上表面上设置有对应的滑动导槽，当折叠显示装置发生折叠时，固定片103在该滑动导槽内转动，进而实现显示装置的折叠或者弯曲。
本申请实施例中，该转轴机构内还设置有凸轮组件102。其中，该凸轮组件102分别对应设置在支撑架100以及同步滑块101上。如设置在该支撑架100的容纳腔的内侧壁上，如分别设置在相对的两内侧壁上。同时，在与该支撑架100对应位置处，该同步滑块101上也设置有该凸轮组件102。当折叠装置内的同步滑块101在该固定片103的带动作用下沿着支撑架100的轴线运动时，该同步滑块101上的凸轮组件102可在支撑架100上的凸轮组件102上滑动，并通过该凸轮组件102对同步滑块101的滑动进行限定，从而保证该折叠显示装置的折叠以及弯曲效果。
进一步的，如图2所示以及图3，图2为本申请实施例中提供的折叠显示装置的俯视示意图，图3为本申请实施例提供的折叠显示装置的侧视图。结合图1中的结构。本申请实施例中，在设置上述固定片103时，该固定片103可设置为两个，如第一固定片103a以及第二固定片103b。
详见图3，本申请实施例中，该第一固定片103a与第二固定片103b均设置在同步滑块101上，且在设置时，该第一固定片103a与第二固定片103b分别设置在该支撑架100的中轴线OO’的两侧，且第一固定片103a与第二固定片103b之间具有一定的间隙，从而防止第一固定片103a与第二固定片103b在转动过程中出现干涉的问题，并保证两不同的固定片能正常转动。
如图4所示，图4为本申请实施例中提供的该支撑架100的结构示意图。本申请实施例中，在设置上述支撑架100时，该支撑架100还包括一容纳腔1002，该容纳腔1002可设置在支撑架100的中部，如在该支撑架100的主体部位上进行挖槽，并形成具有一定深度以及长度的容纳腔1002。在该容纳腔1002的两侧，该支撑架100具有第一侧壁1001以及第二侧壁1003。其中，该第一侧壁1001与第二侧壁1003具有相同的高度以及厚度，从而保证该支撑架100具有较好的对称性，并保证折叠装置的综合性能。
进一步的，该支撑架100还包括至少一挡块100a，该挡块100a设置在第一侧壁1001上，或者将挡块100a设置在第二侧壁1003上。由于同步滑块101设置在容纳腔1002内，当该同步滑块101在容纳腔1002内滑动时，该挡块100a可对同步滑块101进行限定，进而防止同步滑块101从容纳腔1002内滑出，而导致折叠显示面板无法正常工作。
同时，在设置上述挡块100a时，为了保证该挡块100a的阻挡效果，本申请实施例中，该挡块100a设置在靠近凸轮组件102附近位置处，从而起到较好的阻挡效果。
进一步的，本申请实施例中在设置上述凸轮组件102时，该凸轮组件可包括第一凸轮1021以及第二凸轮1022。其中，该第一凸轮1021以及第二凸轮1022均可设置多个，以下实施例中，该第一凸轮1021以及第二凸轮1022均设置两个为例进行说明。
具体的，该第一凸轮1021设置在该支撑架100的容纳腔1002的内侧壁上。如第一凸轮1021分别设置在第一侧壁1001以及第二侧壁1003上，第一凸轮朝向同步滑块一侧设置。其中，在设置时，第一侧壁1001上的第一凸轮1021与第二侧壁1003上的第一凸轮1021可错位设置，详见图4中的排布位置。
同时，在该第一侧壁1001以及第二侧壁1003上，还可间隔的设置多个上述第一凸轮1021。本申请实施例中，当该同步滑块101在容纳腔1002内滑动时，该第一凸轮1021可对同步滑块101进行作用，进而向同步滑块101提供阻力，并控制折叠显示装置的展开或者闭合。
进一步的，该支撑架100上还设置有一侧位挡墙100c。该侧位挡墙100c设置在该容纳腔1002的一侧。如侧位挡墙100c设置在支撑架100的一侧端部，并设置在第一侧壁1001与第二侧壁1003上，本申请实施例中，通过设置侧位挡墙100c，从而使该支撑架的端部与其他机构相平齐。
如图5所示以及图6所示，图5为本申请实施例中提供的该同步滑块的俯视示意图，图6为本申请实施例中提供的同步滑块的正视图。结合图1-图4中的部件结构图，本申请实施例中，在设置同步滑块101时，该同步滑块101上设置有至少一滑动导槽104。以下实施例中，该滑动导槽104以第一滑动导槽104a以及第二滑动导槽104b为例进行说明。其中，该第一滑动导槽104a的形状与结构与第二滑动导槽104b可设置为相同。
具体的，在设置上述两滑动导槽104时，该滑动导槽104可直接设置在同步滑块101上，可选的，该滑动导槽104在该同步滑块101上具有一定的深度，且未在该同步滑块的厚度上形成通孔。
同时，在设置上述第一滑动导槽104a与第二滑动导槽104b时，该第一滑动导槽104a与第二滑动导槽104b相对该同步滑块101的中轴线H3上的一点呈中心对称设置。可选的，在设置第一滑动导槽104a与第二滑动导槽104b时，第一滑动导槽104a以及第二滑动导槽104均相对该同步滑块101的中轴线H3倾斜设置，如第一滑动导槽104a与第二滑动导槽104b均与同步滑块101的中轴线H3成一定角度，且该角度为非直角。
进一步的，在设置上述滑动导槽104时，该滑动导槽可包括第一开口部1041、第二开口部1042以及第三开口部1043。其中，该第一开口部1041以及第三开口部1043分别为该滑动导槽的两侧开口，该第二开口部1042设置在第一开口部1041与第三开口部1043之间，且该第二开口部1042为该滑动导槽的主要滑动部位，其中，该第一开口部1041与第三开口部1043对应的开口宽度，大于第二开口部1042对应的开口宽度。
当固定片在该滑动导槽内滑动时，其主要在上述第一开口部1041、第二开口部1042以及第三开口部1043对应的导槽部位来回进行滑动，由于上述滑动导槽均相对同步滑块101的中轴线H3倾斜设置，因此，其在滑动过程中，固定片会向该同步滑块101提供一沿着轴向方向的力，在该力驱动力F1的作用下，同步滑块101会在F1方向上来回运动，进而实现折叠功能。
进一步的，为了便于安装并提高固定片的滑动效果，本申请实施例中，该第一开口部1041以及第三开口部1043对应的开口的口径可大于第二开口部1042的口径。同时，在该第二开口部1042内，该滑动导槽设置为螺旋结构。详见图6，在设置该螺旋结构时，以第二滑动导槽104b为例，该第二滑动导槽104b从底部的第一开口部1041到顶部的第三开口部1043，螺旋上升设置。即该第二滑动导槽104b对应的中轴线H2为一弧线，且该弧线向下凹陷。从而形成上述螺旋结构。本申请实施例中，该螺旋结构的滑动导槽对应的螺旋角的大小设置为30°~60°。可选的，该滑动导槽的螺旋角度设置为45°、55°，或者根据需求进行设定。从而实现在滑动的过程中，向同步滑块施加驱动力。
具体的，第一滑动导槽104a靠近同步滑块101的中轴线H3的一侧，该第一滑动导槽104a的中轴线H1与同步滑块的中轴线H3之间具有第一夹角α1，同理，第二滑动导槽104b靠近同步滑块101的中轴线H3的一侧，该第二滑动导槽104b的轴线H2与同步滑块的中轴线H3之间具有第二夹角α2。本申请实施例中，该第一夹角α1与第二夹角α2设置为相同的大小。可选的，该第一夹角α1与第二夹角α2可均设置为40°~50°之间，如第一夹角α1与第二夹角α2均设置为45°，通过调控第一夹角α1与第二夹角α2的大小，以改变滑动导槽螺旋角的螺旋度，从而向同步滑块101提供不同的滑动力，并实现折叠装置的不同折叠效果。
进一步的，本申请实施例中，该第一滑动导槽104a的中轴线H1的延长线与该第二滑动导槽104b的中轴线H2也存在一夹角，如定义为第三夹角。具体的，该第三夹角的大小为上述第一夹角α1或第二夹角α2对应角度值的两倍。可选的，第三夹角设置为80°、100°等参数值，以实现两滑动导槽的不同相对位置关系，并保证折叠装置具有较好的折叠效果。
详见图5，本申请实施例中，在设置上述同步滑块101时，该同步滑块101还包括至少一缺口104e。其中，该缺口104e对应设置在第一凸轮1021位置处。由于第一凸轮1021设置为两个，因此，该缺口104e对应设置为两个缺口，两不同的缺口104e分别设置在同步滑块101的两侧。
本申请实施例中，该缺口104e的开口宽度大于该第一凸轮1021的高度，其中，以第一凸轮顶部朝向相平行的方向，如水平方向为参考，该缺口104e的开口深度为横向的宽度，该第一凸轮的高度为水平方向上其突出的高度。由于转动转轴在转动过程中，同步滑块需要在支撑架100内往复运动，通过设置上述缺口104e，为凸轮组件提供避让空间，并保证该凸轮组件在缺口104e中正常运动。
图12为本申请实施例中提供的该同步滑块的侧视图。本申请实施例中，在该同步滑块101的底部，还设置有一安装槽104d。其中，该安装槽104d可设置在缺口104e对应位置处，且该安装槽104d均朝向缺口的外侧设置。在每个缺口104e处均设置一安装槽104d。
同时，在该安装槽104d内，还设置有一连接件，该连接件固定设置在同步滑块101上，并用以对其他部件进行固定。以下实施例中，该连接件以固定销104f为例进行说明。本申请实施例中，该固定销104f的安装方向与安装槽104d的朝向相同。通过设置该固定销104f，并在该固定销104f上设置弹性件666。通过弹性件666施加一定的弹力，并控制不同部件之间的相对运动关系，保证折叠显示装置的弯折效果。
本申请实施例中，在设置上述固定销104f时，该固定销104f的长度大于该安装槽104d的长度，并伸出至安装槽104d之外一定的长度，从而保证该固定销104f的固定效果。
结合图1中的结构，本申请实施例中，在该安装槽104d对应位置处，该凸轮组件102还包括第二凸轮1022。其中，该第二凸轮1022对应设置在该第一凸轮1021处，如该第二凸轮设置在同步滑块上，并朝向容纳腔一侧的内侧壁设置。
进一步的，在进行安装过程中，在固定销104f上，还设置有弹性件666。以下实施例中，该弹性件666以弹簧为例进行说明，或者选用其他具有一定恢复性能的弹性件。其中，该弹性件666设置在第二凸轮1022与同步滑块101之间。
在安装时，将第二凸轮1022插入到安装槽104d内的固定销104f中以进行固定，并对弹性件666压缩。同时使第一凸轮1021与第二凸轮1022相抵接。由于该弹性件666会对第二凸轮1022提供弹性，而该第一凸轮1021会同时向第二凸轮1022提供一相反方向的压力，从而使得该第一凸轮1021与第二凸轮1022相互配合。当同步滑块101往复运动时，该第二凸轮1022同时在第一凸轮1021上往复运动。
具体的，如图7以及图8所示，图7为本申请实施例提供的该第一凸轮与第二凸轮配合示意视图，图8为本申请实施例提供的该第二凸轮的侧视图。本申请实施例中，在进行设置时，该第一凸轮1021与第二凸轮1022为一组凸轮，因此，第一凸轮1021的结构与该第二凸轮1022的外轮廓面的结构相同，该第一凸轮1021与第二凸轮1022相啮合，并相对滑动。详见图7，在设置第一凸轮1021时，可参考该第二凸轮1022的结构进行设置，这里不再赘述。
本申请实施例中，在设置该第二凸轮1022时，该第二凸轮1022包括凸起部102b、对位部102c以及对位孔102a。凸起部102b设置在对位部102c上，且该对位孔102a设置在对位部102c上，如设置在对位部102c的一侧壁上。其中，该凸起部102b为该凸轮在相对滑动过程中的主要接触面。在进行安装时，将该对位部102c安装到同步滑块101的安装槽104d内，并使该对位孔102a与固定销104f对齐，并将该第二凸轮1022套设在该固定销104f上，从而实现该第二凸轮1022的安装及固定。
具体的，为了保证本申请实施例中的凸起部件的运动效果，本申请实施例中，该第二凸轮1022的凸起部102b处对应的爬坡角设置为35°-75°之间，其中，该爬坡角为对位部102c所在的平面L1与凸起部102b处所在的轮廓面L2之间所形成的锐角。可选的，该爬坡角设置为45°、60°，或者根据凸轮的大小进行设定，这里不再赘述。
结合图1，当第一凸轮1021与第二凸轮1022相接处时，不同的凸轮的凸起部对应接触。具体的，第一凸轮1021的凸起部处的外轮廓面与第二凸轮1022的凸起部处的外轮廓面相接触，并形成一接触区域1099。随着面板的弯折，该接触区域1099的位置会发生变化，从而实现该第二凸轮1022在第一凸轮1021的外轮廓面上滑动。
其中，在第二凸轮1022滑动的过程中，第二凸轮1022的外轮廓面与第一凸轮1021的外轮廓面之间的接触面积会发生改变。如当该第一固定片103a与第二固定片103b转动时，在第一时刻t1，该第一凸轮与第二凸轮之间的接触区域1099的接触面积为A1，转动到第二时刻t2时，该第一凸轮与第二凸轮之间的接触区域1099的接触面积为A2。该接触面积A1与接触面积A2不同。若接触面积A1＜A2，则第一时刻时，该弹簧的弹力小于第二时刻时的弹力。如在第一时刻t1时接触区域1099为侧壁的接触，在第二时刻t2下接触区域1099移动到两凸轮的顶部区域相接触。此时，在第二时刻下第二凸轮将弹性件666全部压缩，从而产生较大的弹力。
如图11，图11为本申请实施例中提供的转轴机构的部分装配示意图。此时，该同步滑块101装配在该支撑架100内，且第一凸轮1021与第二凸轮1022相触接。本申请实施例中，在设置上述同步滑块101时，该同步滑块101还包括一过渡斜面777，该过渡斜面777对应设置在每个滑动导槽的第一开口部1041与第三开口部1043之间，且该过渡斜面777的延伸方向与同步滑块的中轴线同向。且该过渡斜面777两侧对应的同步滑块的表面具有不同的高度。从而在转动过程中，为滑动轨道以及固定片提供避让空间，进而提高其转动效果及可靠性。
随着第一固定片与第二固定片的相对转动，如从0°转动到90°的过程中，该第二凸轮1022会从第一凸轮1021的侧壁运动到凸起部的台阶面上，此时，由于第一凸轮的凸起部朝向同步滑块设置，因此，第二凸轮1022在水平方向上会相对该第一凸轮1021运动，并使得固定销104f内的弹性件666被压缩，该弹性件666所产生的弹力会对阻止同步滑块101的进一步运动，从而对该同步滑块的运动进行限定，随着该凸轮组件持续的相对运动，第二凸轮与第一凸轮的不同部位进行接触，并使得弹性件具有不同的弹力，从而实现自动闭合功能。本申请实施例中，通过弹簧向第二凸轮提供恢复弹力，以保证该转轴机构的转动效果。
本申请实施例中，在进一步转动与弯折过程中，由于在该第一凸轮一侧还设置有挡块100a，当第二凸轮1022越过该第一凸轮1021的凸起部的台阶面后，其会被该挡块100a阻挡，此时无法继续发生转动，并最终完成该转轴机构的转动。
进一步的，为了保证上述第一凸轮1021与第二凸轮1022之间的接触效果，并保证该转轴机构的转动效果，详见图7，本申请实施例中，该凸轮组件102中，第一凸轮1021与第二凸轮1022之间的接触区域1099对应的凸轮重合量设置为0.15mm-0.6mm，其中，该凸轮重合量为第一凸轮与第二凸轮的外轮廓面相互贴合部位的长度。可选的，该第一凸轮与第二凸轮之间的凸轮重合量设置为0.3mm、0.4mm或者0.5mm，从而根据不同的产品对上述重合量进行调节，并保证上述凸轮组件之间的相对运动效果。以达到提高本申请实施例中的转轴机构的转动效果。
进一步的，如图9所示，图9为本申请实施例提供的固定片的结构示意图，图10A为本申请实施例提供的固定片的另一结构示意图，图10B为本申请实施例提供的固定片的又一结构示意图。其中，图9中为该固定片的背部示意图，图10A为该固定片的侧视图，图10B为该固定片的正面结构示意图。
结合图1-图8中的各部件的结构，本申请实施例中，该固定片103还包括至少一滑动导轨1031，以及设置在该固定片103表面上的螺丝孔105。具体的，在设置上述滑动导轨1031时，该滑动导轨1031沿着固定片103的一侧的侧边设置，并向固定片的中部螺旋延伸。
具体的，该滑动导轨1031的一端设置在固定片103的侧边对应位置处，同时，该滑动导轨1031的另一端设置在固定片103底部的中部对应位置，并固定在该固定片103上。在进行设置时，该滑动导轨1031设置为螺旋导轨。
进一步的，结合图6中的同步滑块的结构示意图，在进行装配时，该固定片103上的滑动导轨1031卡合在对应的滑动导槽104内，并在转轴转动的过程中，在该滑动导槽104内运动。本申请实施例中，由于该滑动导轨1031与该滑动导槽104相配合，因此，滑动导轨1031还包括卡合凹槽1032，当进行配合时，该滑动导槽104与滑动导轨1031配合，且滑动导槽104的侧边与滑动导轨1031的卡合凹槽1032对应，从而防止滑动导轨1031在滑动的过程中出现晃动以及转动效果不理想的问题。
本申请实施例中，由于该滑动导槽104与滑动导轨1031对应，因此，该滑动导轨1031设置为螺旋导轨，具体的，该螺旋导轨的结构以及具体参数可结合本申请实施例中提供的滑动导槽的结构进行设置，这里不再详细赘述。从而使两者能较好的匹配，并保证滑动过程中的滑动效果。
结合图1以及图11中的装配结构，本申请实施例中，该滑动导轨1031对应设置在该滑动导槽104内，当第一固定片与第二固定片相对该同步滑块101转动时，该固定片103会带动对应的滑动导轨1031运动，此时，滑动导轨1031在该滑动导槽104内螺旋运动。当相对运动时，滑动导轨向同步滑块提供驱动力，使得同步滑块在容纳腔内沿着与支撑架的轴线相平行的方向运动，并带动同步滑块上的凸轮组件在支撑架上的所述凸轮组件上滑动。具体的，滑动导轨1031沿着该滑动导槽104螺旋运动，从而为同步滑块101提供侧向的推力，该侧向的推力的方向与该支撑架的轴线相平行。同时，在该滑动导轨1031螺旋运动过程中，该第二凸轮会同时在第一凸轮上运动，进而对同步滑块101施加不同方向上的作用力，并控制该转轴机构的转动效果。
如图13，图13为本申请实施例提供的该折叠显示装置的爆炸效果示意图。结合本申请中的转轴机构的其他各部件的结构图，本申请实施例中，在对各部件进行装备时，依次将支撑架100、同步滑块101、固定片103安装在对应位置处，同时，将本申请实施例中提供的凸轮组件102，以及与该同步滑块101对应的弹性件666进行安装并固定。并将固定片103上的滑动导轨与同步滑块101上的滑动导槽进行对应安装，最终形成本申请实施例中的折叠显示装置。同时，在进行装配过程中，该显示面板设置在转轴机构上，如设置在固定片103上，当该固定片103相对转动的过程中，该显示面板随之发生弯折，从而实现显示面板的弯曲折叠效果。
进一步的，如图14-图15所示，图14为本申请实施例中提供的该转轴机构在0°时候对应的结构示意图，图15为本申请实施例中提供的该转轴机构在90°时对应的结构示意图，图16为本申请实施例中提供的该转轴机构在0°~90°之间对应位置处对应的结构示意图。
结合上述对转动过程的描述，本申请实施例中，详见图14，在0°时，该固定片103处于水平状态，此时，对应的显示面板可为水平展开状态，同时，结合图7中第一凸轮1021与第二凸轮1022配合的关系以及图1中的安装结构，随着转轴机构的转动，滑动导轨深入到滑动导槽内的长度会增加。在0°时滑动导轨的一端还位于第三开口部1043处，仅部分滑动导轨位于滑动导槽内。此时，第一凸轮1021与第二凸轮1022相接触，该同步滑块101内的弹簧未被压缩，或者被轻微压缩。且该第二凸轮1022位于第一凸轮的第一区域D1内，此时，第二凸轮位于第一凸轮的凸起部的侧壁上处。随着固定片103的转动，第二凸轮1022会从第一区域D1，滑动到第二区域D2并滑动到第三区域D3。该固定片103上的滑动导轨会在同步滑块内的滑动导槽内转动，同时，在转动的过程中，固定片103会对同步滑块101施加一个向上或者向下的驱动力，该力会使得同步滑块101沿着其轴线方向进行运动。
详见图16，随着转动的继续，该第二凸轮从第一区域D1滑动到第二区域D2内，此时，固定片103相对同步滑块表面的角度也随之增加，具体的，该角度从0°增加到90度。随着进一步转动，该第二凸轮会继续从第二区域D2向第三区域D3滑动，当滑动到第三区域D3内时，会形成图15中所示的固定片相对该同步滑块的表面呈90°夹角，甚至更大的夹角。对应的，此时，该第二凸轮滑动到第一凸轮的顶面上。当继续转动该转轴机构，由于在同步滑块两端设置有限位件，该转轴机构转动到最大位置处并停止。当该转轴机构回复时，该第二凸轮从第三区域D3回复到第一区域D1内，动作状态变反向状态，这里不再赘述。
本申请实施例中，在同步滑块101运动过程中，该第一凸轮1021与第二凸轮1022之间的接触面积以及接触位置均会改变，且不同的接触位置以及接触面积其所承受到的力也不同，同时，该第一凸轮1021还会对同步滑块101施加一个横向的阻力，进而对同步滑块101内的弹簧进行压缩，此时，该弹力会对同步滑块101的运动进行阻止，随着弹力的变化以及转轴的转动，该转轴机构实现转动以及自动闭合的功能，当上述动作多次重复时，该同步滑块可在支撑架内来回滑动，并实现转轴机构的转动与折叠。
本申请实施例中，通过该滑动轨道在滑动导槽内滑动，同时，在转轴机构转动的过程中，该凸轮组件还会进一步的各部件的运动进行作用，进而提高本申请实施例中的转轴机构的转动效果。进一步的，本申请实施例中，通过上述同步滑块以及凸轮组件的共同作用，从而有效的提高该折叠显示装置的综合性能。
进一步的，本申请实施例中还提供一种折叠显示装置。如图17-图18所示，图17为本申请实施例中提供的该折叠显示装置的第一结构示意图，图18为本申请实施例中提供的该折叠显示装置的第二结构示意图。结合上述转轴机构，本申请实施例中，在设置该折叠显示装置时，其包括第一中框997、第二中框998、转轴机构99、支撑板994以及柔性显示面板999。
具体的，该第一中框997设置在第二中框998的一侧，该转轴机构99设置在第一中框997与第二中框998之间，且第一中框997通过该转轴机构99与第二中框998相连接，从而实现当折叠装置在折叠时，第一中框997相对该第二中框998转动。
进一步的，该转轴机构99可包括第一转轴机构995和第二转轴机构996，第一转轴机构995相对该第二转轴机构996设置，如对应设置在相对的两侧边处。具体的，该第一转轴机构995与第一中框997和第二中框998对应的a侧边相连接，第二转轴机构996与第一中框997和第二中框998对应的另一侧的b侧边相连接。
详见图17及图18，该折叠显示装置还包括支撑板994以及柔性显示面板999。该支撑板994设置在第一转轴机构995与第二转轴机构996之间。该支撑板994的两侧对应的与转轴机构的固定片103连接，当固定片103翻转时，带动该支撑板994转动。本申请实施例中，该支撑板994一方面能将第一转轴机构995与第二转轴机构996之间的悬空区域填平，另一方面，还能起到支撑作用。
同时，该柔性显示面板999设置在该支撑板994上，且该柔性显示面板999覆盖第一中框997、第二中框998、转轴机构99以及支撑板994。当折叠显示装置折叠时，第一中框997通过转轴机构99向第二中框998的一侧转动，并带动柔性显示面板弯曲，最终实现该柔性显示面板999的折叠与展开。
进一步的，该折叠显示装置可为手机、电脑、电子纸、显示器、笔记本电脑、数码相框等任何可折叠或者触控操作的产品或部件，其具体类型不做具体限制。
综上所述，以上对本发明实施例所提供的一种转轴机构以及折叠显示装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想；虽然本发明以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为基准。

Claims (20)

  1. 一种转轴机构，包括：
    支撑架，所述支撑架内设置有一容纳腔；
    同步滑块，可滑动的设置在所述容纳腔内；
    固定片，所述固定片与所述同步滑块转动连接；以及，
    凸轮组件，所述凸轮组件对应设置在所述支撑架以及所述同步滑块上；
    其中，当所述固定片转动时，所述固定片向所述同步滑块提供驱动力，使得所述同步滑块在所述容纳腔内沿着与所述支撑架的轴线相平行的方向滑动，并带动所述同步滑块上的所述凸轮组件在所述支撑架上的所述凸轮组件上滑动；
    其中，所述凸轮组件包括第一凸轮以及第二凸轮，所述第一凸轮对应设置在所述容纳腔的内侧壁上，并朝向所述同步滑块一侧设置，所述第二凸轮设置在所述同步滑块上，并朝向所述容纳腔一侧的所述内侧壁设置，且所述第一凸轮以及所述第二凸轮的凸起部处的爬坡角设置为35°~75°。
  2. 根据权利要求1所述的转轴机构，其中所述第一凸轮的外轮廓面与所述第二凸轮的外轮廓面相接触，且当所述转轴机构转动时，所述第二凸轮在所述第一凸轮的外轮廓面上滑动。
  3. 一种转轴机构，包括：
    支撑架，所述支撑架内设置有一容纳腔；
    同步滑块，可滑动的设置在所述容纳腔内；
    固定片，所述固定片与所述同步滑块转动连接；以及，
    凸轮组件，所述凸轮组件对应设置在所述支撑架以及所述同步滑块上；
    其中，当所述固定片转动时，所述固定片向所述同步滑块提供驱动力，使得所述同步滑块在所述容纳腔内沿着与所述支撑架的轴线相平行的方向滑动，并带动所述同步滑块上的所述凸轮组件在所述支撑架上的所述凸轮组件上滑动。
  4. 根据权利要求3所述的转轴机构，其中所述凸轮组件包括至少一第一凸轮以及至少一第二凸轮；
    其中，所述第一凸轮对应设置在所述容纳腔的内侧壁上，并朝向所述同步滑块一侧设置，所述第二凸轮设置在所述同步滑块上，并朝向所述容纳腔一侧的所述内侧壁设置。
  5. 根据权利要求4所述的转轴机构，其中所述第二凸轮还包括凸起部、对位部以及对位孔；
    其中，所述凸起部设置在所述对位部上，且所述对位孔设置在所述对位部的一侧壁上。
  6. 根据权利要求5所述的转轴机构，其中所述第一凸轮的凸起部与所述第二凸轮的凸起部相接触并形成一接触区域；
    其中，所述转轴机构从第一时刻转动到第二时刻过程中，所述第一时刻对应的所述接触区域的面积，与所述第二时刻对应的所述接触区域的面积不同。
  7. 根据权利要求4所述的转轴机构，其中所述第一凸轮的外轮廓面与所述第二凸轮的外轮廓面相接触，且当所述转轴机构转动时，所述第二凸轮在所述第一凸轮的外轮廓面上滑动。
  8. 根据权利要求4所述的转轴机构，其中所述同步滑块上还设置有一安装槽，在所述安装槽内设置有一连接件；
    其中，所述第二凸轮对应设置在所述连接件内，所述第二凸轮的凸起部朝向所述第一凸轮。
  9. 根据权利要求8所述的转轴机构，其中所述同步滑块还包括弹性件，所述弹性件设置于所述连接件上，并用以向所述第二凸轮提供一恢复弹力。
  10. 根据权利要求4所述的转轴机构，其中所述同步滑块还包括至少一缺口，所述第一凸轮对应设置在所述缺口内，且与所述第一凸轮顶部朝向相平行的方向上，所述缺口的宽度大于的第一凸轮的高度。
  11. 根据权利要求3所述的转轴机构，其中所述同步滑块上还设置有至少一滑动导槽，所述滑动导槽包括第一滑动导槽以及第二滑动导槽，所述固定片上还设置有至少一滑动导轨；
    其中，所述滑动导轨可转动的设置于所述滑动导槽内，且在转动过程中，所述滑动导轨用以向所述同步滑块提供驱动力。
  12. 根据权利要求11所述的转轴机构，其中所述第一滑动导槽的中轴线与所述同步滑块的中轴线的延伸方向具有第一夹角，所述第二滑动导槽的中轴线与所述同步滑块的中轴线的延伸方向具有第二夹角；
    其中，所述第一夹角以及所述第二夹角均设置为40°~50°。
  13. 根据权利要求11所述的转轴机构，其中所述滑动导槽还包括第一开口部、第二开口部以及第三开口部；
    所述第一开口部设置在靠近所述同步滑块的一侧边缘，所述第二开口部设置在所述第一开口部与所述第三开口部之间。
  14. 根据权利要求13所述的转轴机构，其中所述第一开口部以及所述第三开口部对应的开口宽度，大于所述第二开口部的开口宽度。
  15. 根据权利要求3所述的转轴机构，其中所述固定片上的滑动导轨从所述固定片的侧边至所述固定片宽度方向对应的中轴线处设置。
  16. 根据权利要求11所述的转轴机构，其中所述滑动导槽以及所述滑动导轨均螺旋设置，且所述滑动导轨滑动设置于所述滑动导槽内，当所述转轴机构转动时，所述滑动导轨在所述滑动导槽内滑动，并驱使所述同步滑块沿着所述支撑架的轴线运动。
  17. 根据权利要求16所述的转轴机构，其中所述滑动导轨的螺旋角度设置为30°~60°。
  18. 根据权利要求13所述的转轴机构，其中所述转轴机构展平状态时，所述滑动导轨远离所述同步滑块边缘的一端位于所述滑动导槽的第三开口部内，且所述第二凸轮位于所述第一凸轮的凸起部的侧壁上。
  19. 一种折叠显示装置，包括：
    第一中框；
    第二中框，所述第二中框设置在所述第一中框的一侧；
    转轴机构，所述转轴机构设置在所述第一中框与所述第二中框之间，且所述第一中框与所述第二中框通过所述转轴机构连接，所述转轴机构包括：
    支撑架，所述支撑架内设置有一容纳腔；
    同步滑块，可滑动的设置在所述容纳腔内；
    固定片，所述固定片与所述同步滑块转动连接；
    凸轮组件，所述凸轮组件对应设置在所述支撑架以及所述同步滑块上；
    当所述固定片转动时，所述固定片向所述同步滑块提供驱动力，使得所述同步滑块在所述容纳腔内沿着与所述支撑架的轴线相平行的方向滑动，并带动所述同步滑块上的所述凸轮组件在所述支撑架上的所述凸轮组件上滑动；以及，
    柔性显示面板，所述柔性显示面板覆盖在所述第一中框、所述第二中框以及所述转轴机构上。
  20. 根据权利要求19中所述的折叠显示装置，其中所述转轴机构包括第一转轴机构和第二转轴机构，所述第一转轴机构与同侧的所述第一中框和所述第二中框的侧边连接，所述第二转轴机构与同侧的所述第一中框和所述第二中框的相对所述侧边连接；
    所述折叠显示装置还包括支撑板，所述支撑板设置在所述第一转轴机构与所述第二转轴机构之间，且所述柔性显示面板设置在所述支撑板上。
PCT/CN2023/094518 2023-03-28 2023-05-16 转轴机构及折叠显示装置 Ceased WO2024198059A1 (zh)

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