WO2023225969A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2023225969A1
WO2023225969A1 PCT/CN2022/095390 CN2022095390W WO2023225969A1 WO 2023225969 A1 WO2023225969 A1 WO 2023225969A1 CN 2022095390 W CN2022095390 W CN 2022095390W WO 2023225969 A1 WO2023225969 A1 WO 2023225969A1
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WO
WIPO (PCT)
Prior art keywords
display screen
flexible display
housing
guide
support plate
Prior art date
Application number
PCT/CN2022/095390
Other languages
English (en)
French (fr)
Inventor
刘振华
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280004494.3A priority Critical patent/CN117461069A/zh
Priority to PCT/CN2022/095390 priority patent/WO2023225969A1/zh
Publication of WO2023225969A1 publication Critical patent/WO2023225969A1/zh

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details

Definitions

  • the present disclosure relates to the technical field of electronic products, and in particular, to an electronic device.
  • the present disclosure provides a retractable screen structure and electronic equipment to solve at least some of the problems in related technologies.
  • the present disclosure provides an electronic device to solve at least part of the problems in the related art.
  • An embodiment of the present disclosure provides an electronic device, including:
  • a housing including a first housing and a second housing, the first housing and the second housing being enclosed to form a receiving structure with an opening;
  • a slide rail mechanism is provided in the receiving structure and connected to the second housing, and the slide rail mechanism is slidably connected to the first housing along the first direction;
  • the rotating shaft assembly is located at one end of the second housing away from the first housing.
  • the rotating shaft assembly includes a track portion; the thickness of the track portion along a third direction perpendicular to the first direction is along the The first direction gradually decreases from an end close to the first housing to an end far away from the first housing;
  • a flexible display screen is wound around the track portion.
  • the first end of the flexible display screen is connected to the slide rail mechanism.
  • the second end of the flexible display screen is connected to the first housing and covers the Open your mouth.
  • the track portion includes a track surface
  • the flexible display screen is arranged around the track surface
  • the end surface of the track surface away from the first housing is an arc-shaped surface
  • the track part includes a track body and a runner, the track body is formed with a receiving cavity, and the runner is movably arranged in the receiving cavity;
  • the flexible display screen is wound around the track body and part of the runner, and the outer contour surface of the track body and part of the outer contour surface of the runner jointly form the track surface.
  • the track surface is an elliptical surface.
  • a telescopic screen structure is also included, and the telescopic screen structure includes the flexible display screen and a support assembly;
  • the flexible display screen is provided with a first magnetic component; the support component is supported below the flexible display screen, the support component includes a first support plate and a second support plate, and the second support plate is connected to the flexible display screen.
  • the flexible display screen is connected and slidingly connected with the first support plate; at least one of the first support plate and the second support plate is provided with a second magnetic component that magnetically cooperates with the first magnetic component.
  • the telescopic screen structure includes an unfolded state and a retracted state.
  • the second support plate moves away from or approaches the first support plate along an edge.
  • the direction of the first support plate slides, and the flexible display screen moves synchronously with the second support plate.
  • the second support plate is used to support the unfolded portion of the flexible display screen relative to the first support plate.
  • the first magnetic component includes:
  • a first metal piece connected to the side of the flexible display screen close to the support component
  • the second metal piece is connected to the first metal piece.
  • the flexible display screen includes a body part and a bending part connected to the body part; the first metal part is non-magnetic, and the first metal part is connected to the body and the side of the bent portion close to the support component; the second metal piece has magnetism and is connected to the portion of the first metal piece located in the area where the bent portion is located.
  • the first metal piece includes a mesh metal piece
  • the second metal piece includes a strip metal piece.
  • the first support plate includes a first main body part and a plurality of first guide parts disposed on sides of the first main body part, and the first guide parts are arranged along a first direction. Extendedly arranged, the plurality of first guide portions are spaced apart along a second direction perpendicular to the first direction;
  • the second support plate includes a second main body part and a plurality of second guide parts slidingly mated with the first guide part.
  • the plurality of second guide parts are provided on the side of the second main body part.
  • the second guide portion extends along the first direction, and the plurality of second guide portions are spaced apart along the second direction.
  • the second magnetic component includes at least one magnetic attraction piece, and at least one of the second main body part and the second guide part is provided with a groove part, and the magnetic attraction part The piece is arranged in the groove part.
  • the second main body part is provided with a first groove part, and the first groove part extends along the first direction;
  • At least one of the second guide portions is provided with a second groove portion, and the second groove portion extends along the second direction.
  • the second main body part is provided with at least two first groove parts spaced apart along the second direction;
  • At least one of the second guide portions is provided with at least two second groove portions spaced apart along the first direction;
  • the second main body portion is provided with at least two first groove portions spaced along the second direction, and at least one second guide portion is provided with at least two first groove portions spaced apart along the first direction. the second groove portion.
  • the first guide portion includes one of the guide grooves and the guide rails that are adapted to each other, and the second guide portion includes the other of the guide grooves and the guide rails that are adapted to each other.
  • the thickness of the track portion of the rotating shaft assembly along a third direction perpendicular to the first direction gradually decreases along the first direction from an end close to the first housing to an end far away from the first housing.
  • the flexible display screen is wound around the track portion.
  • the first end of the flexible display screen is connected to the slide rail mechanism.
  • the second end of the flexible display screen is connected to the first housing and covers the opening.
  • Figure 1 shows a schematic structural diagram of an electronic device in a retracted state according to an exemplary embodiment of the present disclosure
  • Figure 2 shows a schematic structural diagram of an electronic device in an unfolded state according to an exemplary embodiment of the present disclosure
  • Figure 3 is a partially enlarged schematic diagram of position A in Figure 2;
  • Figure 4 shows a schematic structural diagram of a telescopic screen structure according to an exemplary embodiment of the present disclosure
  • Figure 5 shows a partially enlarged schematic diagram of the retractable screen structure according to an exemplary embodiment of the present disclosure
  • Figures 6 and 7 are respectively schematic structural diagrams of the support assembly in an expanded state according to an exemplary embodiment of the present disclosure
  • Figure 8A is a cross-sectional view of plane A-A in Figure 7;
  • Figure 8B is an enlarged schematic view of position A in Figure 8A;
  • Figure 9 shows an exploded view of a telescopic screen structure according to an exemplary embodiment of the present disclosure
  • Figure 10 shows an exploded schematic view of the slide rail assembly of the slide rail mechanism according to an exemplary embodiment of the present disclosure
  • Figure 11 shows a schematic structural diagram of a slide rail mechanism according to an exemplary embodiment of the present disclosure
  • Figure 12 is a schematic structural diagram of the slide rail assembly of the slide rail mechanism according to an exemplary embodiment of the present disclosure
  • Figure 13 is a cross-sectional view along the X1-X1 direction of Figure 12;
  • Figure 14 is a partial enlarged schematic diagram of position A in Figure 13;
  • Figure 15 is a partial enlarged schematic view of B in Figure 13;
  • Figure 16 is a partial enlarged schematic view of C in Figure 13;
  • Figure 17 shows a schematic structural diagram of the elastic component of the slide rail mechanism according to an exemplary embodiment of the present disclosure
  • Figure 18 shows a schematic structural diagram of a telescopic screen structure according to an exemplary embodiment of the present disclosure
  • Figure 19 is a schematic structural diagram of the rotating shaft assembly of the telescopic screen structure according to an exemplary embodiment of the present disclosure
  • Figure 20 is an enlarged schematic diagram of position A in Figure 19;
  • Figure 21 is a schematic structural diagram of a rotating shaft assembly of a telescopic screen structure according to another exemplary embodiment of the present disclosure.
  • Figures 22 and 23 are respectively schematic diagrams of the electronic device according to an exemplary embodiment of the present disclosure when the flexible display screen is in the retracted state and the unfolded state;
  • Figure 24 shows comparison views of the electronic device according to an exemplary embodiment of the present disclosure when the flexible display screen is in the retracted state and the expanded state;
  • Figure 25 shows a three-dimensional schematic view of the driving mechanism of the electronic device according to an exemplary embodiment of the present disclosure
  • Figure 26 shows an exploded schematic diagram of a driving mechanism of an electronic device according to an exemplary embodiment of the present disclosure
  • Figure 27 shows an exploded schematic diagram of the first reduction gearbox of the driving mechanism of the electronic device according to an exemplary embodiment of the present disclosure
  • Figure 28 shows a schematic diagram of the installation position of the driving mechanism of the electronic device according to an exemplary embodiment of the present disclosure
  • Figure 29 shows a schematic structural diagram of the slide rail mechanism and part of the housing of the electronic device according to an exemplary embodiment of the present disclosure
  • Figure 30 is an enlarged schematic view of position A in Figure 29;
  • Figure 31 shows a schematic structural diagram of a bracket of a slide rail mechanism of an electronic device according to an exemplary embodiment of the present disclosure
  • Figure 32 is a partially enlarged schematic view of the rotating shaft assembly in Figure 22;
  • Figure 33 is a cross-sectional view of Figure 30;
  • Figure 34 shows a schematic structural diagram of a slide rail mechanism of an electronic device according to another exemplary embodiment of the present disclosure
  • Figure 35 shows a schematic structural diagram of a slide rail mechanism of an electronic device according to yet another exemplary embodiment of the present disclosure
  • Figure 36 shows a schematic assembly diagram of the housing and the flexible display screen of the electronic device according to an exemplary embodiment of the present disclosure
  • Figure 37 shows a top view of an electronic device in a retracted state according to an exemplary embodiment of the present disclosure
  • Figure 38 shows a top view of an electronic device in an unfolded state according to an exemplary embodiment of the present disclosure
  • Figure 39 shows a rear view of an electronic device in a retracted state according to an exemplary embodiment of the present disclosure
  • Figure 40 shows a back view of an electronic device in an unfolded state according to an exemplary embodiment of the present disclosure
  • Figure 41 shows a schematic structural diagram of a support assembly of an electronic device in a retracted state according to an exemplary embodiment of the present disclosure
  • Figures 42 and 43 are respectively schematic structural diagrams of a support assembly of an electronic device in an expanded state according to an exemplary embodiment of the present disclosure
  • Figure 44 is a cross-sectional view of plane A-A in Figure 43;
  • Figure 45 is an enlarged schematic view of position A in Figure 44;
  • Figure 46 shows an assembly diagram of a displacement sensor of an electronic device according to an exemplary embodiment of the present disclosure
  • Figure 47 shows a three-dimensional schematic view of a displacement sensor of an electronic device according to an exemplary embodiment of the present disclosure
  • Figure 48 is a cross-sectional view of the XX-XX plane in Figure 46;
  • Fig. 49 is a cross-sectional view taken along the EE-EE plane in Fig. 46.
  • an electronic device which may be a mobile phone, a mobile terminal, a tablet computer, a notebook computer, a terminal handheld device with a screen, a vehicle-mounted display device, etc.
  • the electronic device may include a telescopic screen structure, a housing, a slide rail mechanism, a rotating shaft assembly 12 and a driving mechanism 99 .
  • the retractable screen structure may include a support component 60 and a flexible display screen 90 .
  • the flexible display screen 90 is provided with a first magnetic component 40 .
  • the support assembly 60 is supported below the flexible display screen 90.
  • the support assembly 60 includes a first support plate 61 and a second support plate 62.
  • the second support plate 62 is connected to the flexible display screen 90 and is connected to the flexible display screen 90.
  • the first support plate 61 is slidingly connected.
  • At least one of the first support plate 61 and the second support plate 62 is provided with a second magnetic component 50 that magnetically cooperates with the first magnetic component 40 .
  • the telescopic screen structure includes an unfolded state and a retracted state.
  • the second support plate 62 moves away from the first support plate 61 .
  • the flexible display screen 90 moves synchronously with the second support plate 62, and the second support plate 62 is used to support the flexible display screen 90 relative to the first support plate 61.
  • the flexible display screen 90 is supported by the support assembly 60.
  • the telescopic screen structure switches between the unfolded state and the retracted state, the expanded portion of the flexible display screen 90 relative to the first support plate 61 is supported by the second support plate 62, and the flexible display screen 90 is supported by the second support plate 62.
  • the display screen 90 plays a comprehensive supporting role.
  • the supporting area should be maximized as much as possible.
  • the positions of the supporting points should be distributed as evenly as possible.
  • the flatness of the supporting component 60 can be controlled below 0.15, thereby ensuring that the telescopic screen In the unfolded state, the structure will not sink downward when the user's finger touches the screen and presses it, thus improving the user experience.
  • the magnetic cooperation between the first magnetic component 40 and the second magnetic component 50 allows the flexible display screen 90 to be flatly attached to the support component 60, reducing arching or empty positioning. question.
  • the first magnetic component 40 includes a first metal piece 41 and a second metal piece 42 .
  • the first metal piece 41 is connected to the side of the flexible display screen 90 close to the support assembly 60 .
  • the second metal part 42 is connected to the first metal part 41 . In this way, configuring the first magnetic component 40 as a double-layer metal structure can improve the magnetic attraction force of the first magnetic component 40 and the second magnetic component 50 .
  • the flexible display screen 90 includes a body part 903 and a bending part 904 connected to the body part 903 .
  • the first metal piece 41 is non-magnetic, and is connected to the body portion 903 and the side of the bending portion 904 close to the support assembly 60 . It can be understood that the first metal piece 41 covers the entire surface of the flexible display screen 90 to facilitate screen bending.
  • the second metal part 42 has magnetism and is connected to the part of the first metal part 41 located in the area where the bending part 904 is located. It can be understood that the second metal piece 42 covers the area where the bending portion 904 is located.
  • the first metal piece 41 can be attached to the side of the body portion 903 and the bending portion 904 close to the support assembly 60 by means of adhesive.
  • the second metal part 42 can be attached to the part of the first metal part 41 located in the area where the bending part 904 is located by adhesive.
  • the first metal piece 41 may include a mesh metal piece.
  • the second metal piece 42 may include a strip metal piece.
  • the metal parts may be steel sheets, that is, the first metal part 41 may include a grid steel sheet, and the second metal part 42 may include a strip steel sheet.
  • the structure, shape, and material of the first metal part 41 and the second metal part 42 can be adjusted according to actual conditions, and this disclosure does not limit this.
  • the magnetic cooperation between the first magnetic component 40 and the second magnetic component 50 can enable the flexible display screen 90 to be flatly attached to the support.
  • the thrust force pushing the flexible display screen 90 to move is greater than the shearing force of the magnetic attraction, so that the flexible display screen 90 can be smoothly attached to the support assembly 60, thus solving the problem of arching or empty position.
  • the first support plate 61 includes a first main body part 611 and a plurality of first guide parts disposed on the sides of the first main body part 611.
  • the first guide parts are arranged along the The first direction X is extended and arranged, and the plurality of first guide portions are arranged at intervals along the second direction Y perpendicular to the first direction X.
  • the second support plate 62 includes a second main body part 621 and a plurality of second guide parts slidingly mated with the first guide part.
  • the plurality of second guide parts are provided on the side of the second main body part 621. part, the second guide part extends along the first direction X, and the plurality of second guide parts are spaced apart along the second direction Y.
  • the first guide portion includes one of the guide grooves 612 and the guide rail bars 622 that are adapted to each other, and the second guide portion includes the other of the guide grooves 612 and the guide rail bars 622 that are adapted to each other.
  • the first guide part includes a guide groove 612
  • the second guide part includes a guide rail bar 622.
  • the second magnetic component 50 includes at least one magnetic piece 51 , the second main body part 621 and the second guide part At least one of them is provided with a groove part 52, and the magnetic attraction part 51 is disposed in the groove part 52, which can make the installation of the magnetic attraction part 51 more firm.
  • the magnetic piece 51 can be fixed in the groove portion 52 by dispensing glue to enhance the connection strength with the groove portion 52 .
  • the magnetic attraction member 51 can be a magnet, with the front and back sides being N/S poles.
  • the magnets can be designed in segments, and all the magnets can have N poles facing the flexible display screen 90 , or all the magnets can have S poles facing the flexible display screen 90 , or some of the magnets can have N poles facing the flexible display screen 90 , and other magnets can have S poles facing the flexible display screen 90 .
  • the magnets can also be arranged with N/S poles staggered toward the flexible display screen 90 . For example, the N pole of the first magnet faces the flexible display screen 90 , the S pole of the second magnet faces the flexible display screen 90 , the N pole of the third magnet faces the flexible display screen 90 , and so on. Combined in this way, the magnetic attraction will be greatly improved.
  • the second main body part 621 is provided with a first groove part (not shown), and the first groove part extends along the first direction X.
  • the second guide portion is provided with a second groove portion (not shown), and the second groove portion extends along the second direction Y.
  • the magnetic attraction piece 51 can be provided solely in the first groove portion.
  • the magnetic attraction member 51 may be provided alone in the second groove part.
  • the magnetic attraction member 51 may be provided both in the first groove part and in the second groove part.
  • the magnetic attraction piece 51 is disposed in both the first groove part and the second groove part.
  • the arrangement of the magnetic pieces 51 can be adjusted according to actual conditions, and this disclosure does not limit this.
  • the second main body part 621 may be separately provided with at least two first groove parts spaced apart along the second direction Y, and the magnetic attraction member 51 is provided in the first groove part.
  • at least one of the second guide parts may be provided with at least two second groove parts spaced apart along the first direction X, and the magnetic attraction member 51 is provided in the second groove part.
  • the second main body portion 621 is provided with at least two first groove portions spaced along the second direction Y, and at least one of the second guide portions is provided with a groove along the first direction Y.
  • the magnetic attraction member 51 adopts the arrangement method (3) above.
  • the arrangement of the magnetic pieces 51 can be adjusted according to actual conditions, and this disclosure does not limit this.
  • the slide rail mechanism includes a bracket 11 and a slide rail assembly 20.
  • the slide rail assembly 20 includes a fixed base 21 and a flexible display screen 90 for connecting the telescopic screen structure.
  • the sliding member 22 and the elastic component 23 are fixedly connected to the bracket 11 , and the sliding member 22 slides along the first direction X (the vertical direction shown in FIG. 11 ) and is disposed on the fixed base 21 .
  • One end 2301 is connected to the fixed base 21
  • the second end 2302 of the elastic component 23 is connected to the sliding member 22 .
  • the elastic component 23 is stretched or compressed under the driving of the sliding member 22 to deform, thereby generating a pre-tension force on the flexible display screen 90 . It can be understood that the sliding member 22 slides relative to the fixed base 21 in the direction of the arrow in FIG. 11 , and stretches the elastic component 23 so that the elastic component 23 generates a reverse pulling force.
  • the sliding member 22 moves along the first direction X relative to the fixed base 21, and can drive the flexible display screen 90 of the telescopic screen structure to move together, thereby realizing the expansion and retraction of the flexible display screen 90.
  • the sliding member 22 drives the elastic component 23 to move together, stretching the elastic component 23 and producing a pre-tension force on the flexible display screen 90, making the flexible display screen 90 smoother when unfolded and preventing the whole machine from sliding away from the screen. Problems such as bulging, bulging and distortion.
  • the slide rail assembly 20 further includes at least one guide rail 24 , which is provided on the fixed base 21 and extends along the first direction X.
  • the sliding member 22 is provided with The slide groove 220 corresponds to the guide rail 24, and the sliding member 22 is slidably disposed on the guide rail 24 through the slide groove 220.
  • the number of the guide rails 24 is four groups, which are symmetrically arranged on the fixed base 21 to make the sliding member 22 more stable when sliding. In other examples, the number of guide rails 24 may also be other, which is not limited by this disclosure.
  • the slide rail assembly 20 further includes at least one limiting stop 25 located at one end of the fixed base 21 away from the bracket 11 (the upper end in Figure 11),
  • the sliding member 22 is provided with a limiting portion 221 that abuts and cooperates with the limiting stopper 25 .
  • the limiting block 25 abuts and cooperates with the limiting portion 221 of the sliding member 22 to limit the starting position of the sliding member 22 and prevent the sliding member 22 from being separated from the guide rail 24 .
  • the limiting portion 221 can be understood as a groove.
  • There are two limiting blocks 25 which are symmetrically arranged on the fixed base 21 . 25 corresponding settings, this disclosure does not limit this.
  • the limit stop 25 is provided at the upper end of the fixed base 21, and the starting position of the sliding member 22 is located at the upper end of the fixed base 21.
  • the elastic component 23 exerts a force on the sliding member 22.
  • the elastic pre-tension force keeps the slider 22 in this starting position.
  • At least one side of the guide rail 24 is provided with a snap-fitting portion 241
  • the sliding member 22 is provided with a snap-fit fitting portion 241 .
  • the sliding member 22 engages with the engaging portion 241 of the guide rail 24 through the first buckling portion 222, so that the sliding member 22 can be more firmly connected to the guide rail 24, making the sliding member 22 more stable when sliding along the guide rail 24.
  • the engaging portion 241 may be an underhook structure formed by processing sheet metal parts to prevent the sliding member 22 from moving away from the guide rail 24 .
  • the clamping portions 241 are provided on both sides of the guide rail 24 , which is not limited in this disclosure.
  • the side of the sliding member 22 is provided with a second buckle portion 223 that engages with the side of the fixed base 21 .
  • the sliding part 22 engages with the side of the fixed base 21 through the second buckle part 223, making the connection between the sliding part 22 and the fixed base 21 more stable, preventing the sliding part 22 from detaching from the fixed base 21 when sliding, and improving the sliding part. 22Stability when sliding.
  • the slide rail assembly 20 further includes a plastic buckle 224 that covers and is buckled on the side of the fixed base 21 , and the second buckle portion 223 is buckled with the plastic buckle 224 .
  • the plastic buckle 224 can reduce the friction between the second buckle part 223 and the side of the fixed base 21, reduce wear and ensure smooth sliding.
  • the plastic buckle 224 can be made of POM (polyoxymethylene, polyformaldehyde resin) plastic, which is a self-lubricating plastic.
  • the sliding part 22 and the plastic buckle 224 can be combined as one part through a co-molding process (insert-molding).
  • the design gap between the plastic buckle 224 and the side of the fixed base 21 is 0.05, ensuring that there are only 22 sliding parts. It can slide along the extension direction of the guide rail 24, that is, the first direction X, thereby improving the structural stability.
  • the fixed base 21 is provided with a step portion 211 extending along the first direction X
  • the sliding member 22 is provided with a step portion 211 that abuts and matches.
  • the contact block 225 cooperates with the step portion 211 to further prevent the sliding member 22 from being separated from the fixed seat 21 when sliding.
  • the elastic component 23 includes a first rod 231 , a second rod 232 and an elastic member 233 .
  • the first rod 231 and the second rod 232 are plugged into each other and can slide with each other.
  • the elastic member 233 is connected between the first rod 231 and the second rod 232 .
  • the first rod 231 is connected to the fixed base 21
  • the second rod 232 is connected to the sliding member 22 .
  • the elastic member 233 can be a spring, a tension spring, etc., and has a pre-tension force during assembly to keep the sliding member 22 in the starting position. When the first rod 231 and the second rod 232 are pulled apart, the spring starts to work.
  • the second rod 232 is driven to slide relative to the first rod 231, thereby cooperating with the first rod 231 to stretch or compress the elastic member. 233, causing the elastic member 233 to deform to generate an elastic force on the sliding member 22.
  • both the first rod 231 and the second rod 232 are provided with slide grooves, and they are inserted into each other and can slide relative to each other.
  • the first end of the first rod 231 (the lower end shown in FIG. 17 ) is fixed to the fixed seat 21 through rivets, and the first end (the upper end shown in FIG. 17 ) of the second rod 232 is fixed to the sliding member 22 through rivets.
  • the second rod 232 is driven to slide relative to the first rod 231, thereby stretching the elastic member 233 in cooperation with the first rod 231, making the elastic member 233 elastic.
  • the deformation of the member 233 produces a reverse pulling force on the sliding member 22, ensuring that the flexible display screen is in a "tightened” state.
  • the number of elastic components 23 is multiple, including a first elastic component 23A, a second elastic component 23B, and a third elastic component 23C.
  • the second elastic component 23B and the third elastic component 23C are The elastic components 23C are symmetrically arranged on both sides of the first elastic component 23A.
  • the elastic member 233 of the first elastic component 23A extends along the first direction X, and the elastic members 233 of the second elastic component 23B and the third elastic component 23C are symmetrically disposed along the first direction X. And is arranged obliquely relative to the first direction X.
  • the second elastic component 23B and the third elastic component 23C are of the same design and are symmetrically arranged on both sides of the first elastic component 23A.
  • the initial compression amount of the elastic member of the first elastic component 23A may be slightly greater than the initial compression amount of the elastic members of the second elastic component 23B and the third elastic component 23C, thereby increasing a larger sliding stroke. Assuming that the total designed sliding stroke is 30.00mm, the first elastic component 23A can start working by sliding 19mm from the sliding member 22 .
  • the entire slide rail assembly 20 can be fixed on the bracket 11 by riveting.
  • One end of the bracket 11 may include a connecting plate 111, and the fixing base 21 may be a stamped metal plate and fixed on the connecting plate 111 through a riveting process.
  • the flexible display screen 90 is fixed on the sliding member 22 of the slide rail assembly 20 .
  • the bracket 11 can be made of aluminum alloy to improve the structural strength.
  • the sliding part 22 can be processed by SUS stainless steel plate and POM plastic plastic co-molding process.
  • the stainless steel plate can serve as the main body to provide strength support, and the chute can be formed by POM plastic injection molding, and can slide with the fixed seat 21 and the guide rail 24 to reduce friction.
  • the limiting block 25 can be made of plastic material, and can limit the starting position of the sliding member 22 and prevent the sliding member 22 from being separated from the guide rail 24 .
  • the guide rail 24 can be formed by stainless steel stamping process and fixed on the fixed base 21 through spot welding. It cooperates with the slide groove 220 on the sliding member 22 to form an underhook structure to prevent the sliding member 22 from moving away from the guide rail 24 when sliding.
  • the exposed surface of the sliding member 22 can be used as an adhesive area 226 to be adhered and fixed to the flexible display screen 90 .
  • an embodiment of the present disclosure provides a telescopic screen structure, including the slide rail mechanism and a flexible display screen 90 as described in the above embodiment.
  • the rotating shaft assembly 12 is disposed on the side of the bracket 11 away from the slide rail assembly 20, and the axial direction of the rotating shaft assembly 12 is perpendicular to the first direction X.
  • the first end of the flexible display screen 90 is connected to the sliding member 22 , and the second end of the flexible display screen 90 is wound around the rotating shaft assembly 12 .
  • the rotating shaft assembly 12 includes a rotating shaft support, a rotating shaft 122 and a rotating wheel.
  • the rotating shaft support is connected to the side of the bracket 11 away from the slide rail assembly 20 .
  • the rotating shaft support is provided with an axis hole, and the axis hole is The circumferential direction is perpendicular to the first direction X.
  • the rotating shaft 122 is passed through the shaft hole, and the rotating wheel is sleeved on the rotating shaft 122 .
  • the flexible display screen 90 is wound around the wheel, and when the flexible display screen 90 is unfolded or retracted, the wheel is driven to rotate.
  • the first end 901 of the flexible display screen 90 is connected to the sliding member 22 of the slide rail assembly 20, and the second end 902 of the flexible display screen 90 is wound around the wheel.
  • the flexible display screen 90 is made of a flexible OLED screen and an extremely thin layer of stainless steel mesh, and has great flexibility.
  • the flexible display screen 90 is wound around the wheel of the rotating shaft assembly 12.
  • the wheel is driven to rotate, that is, the wheel is passively rotated.
  • the wheel can function as a pulley to make the flexible display screen 90 rotate.
  • the display screen 90 can be expanded and retracted more smoothly, which effectively reduces friction and energy loss during the expansion or retraction process of the flexible display screen 90 , allowing the flexible display screen 90 to be expanded or retracted more smoothly.
  • the rotating shaft 122 is fixedly connected to the shaft hole, and the rotating wheel is rotationally connected to the rotating shaft 122 . It can be understood that the rotating shaft 122 is fixedly connected to the rotating shaft support, the rotating wheel can rotate relative to the rotating shaft 122, but the rotating shaft does not rotate relative to the rotating shaft support. When the flexible display screen 90 is unfolded or retracted, it only drives the wheels to rotate.
  • the rotating shaft support includes a plurality of sub-supports 121, which are spaced apart from the bracket 11 in a direction perpendicular to the first direction X.
  • the seat 121 is provided with a sub-shaft hole, and the sub-shaft holes of the plurality of sub-supports 121 are coaxially arranged to form the shaft hole.
  • the rotating shaft 122 is penetrated through the plurality of sub-shaft holes to connect with the plurality of sub-supports. 121 fixed connection.
  • the runner includes a plurality of sub-runners 123, and one sub-runner 123 is provided between two adjacent sub-supports 121.
  • the rotating shaft support is configured as a plurality of sub-supports 121
  • the runner is configured as a plurality of sub-runners 123
  • the sub-supports 121 and sub-runners 123 are alternately arranged, which can enhance the rotating performance of the runner while ensuring the rotation performance of the runner.
  • the strength of the bearing improves the overall structural strength.
  • each sub-support 121 of the rotating shaft support is fixedly connected to the bracket 11, or can be integrally formed with the bracket 11.
  • the size of each sub-support 121 can be different. For example, it can be divided into a small support and a large support.
  • each sub-runner 123 can also be different, for example, divided into a large runner and a small runner, which can be set according to actual needs, and this disclosure does not limit this.
  • the rotating shaft assembly 12 further includes a plurality of first bearings 124 sleeved on the rotating shaft 122 , and one first bearing 124 is provided on both sides of the sub-runner 123 .
  • the first bearing 124 includes a bearing inner ring and a bearing outer ring that is rotationally connected to the bearing inner ring.
  • the bearing inner ring is connected to the rotating shaft 122
  • the bearing outer ring is connected to the sub-runner 123 . It can be understood that the sub-runner 123 rotates relative to the rotating shaft 122 through the first bearing 124.
  • the first bearing 124 can reduce the friction loss caused by the rotation of the sub-runner 123.
  • the inner ring of the bearing and the rotating shaft 122 can be designed to have zero matching in the radial direction. Ensure that the inner ring of the bearing will not rotate with the rotation of the sub-runner 123.
  • the sub-runner 123 and the rotating shaft 122 can be designed to avoid in the radial direction to ensure that there is a gap between the sub-runner 123 and the rotating shaft 122 to achieve rotation.
  • the rotating shaft assembly 12 in order to prevent the inner ring of the bearing from rotating with the rotation of the sub-runner 123 , that is, to ensure that the inner ring of the bearing does not rotate relative to the rotating shaft 122 , the rotating shaft assembly 12 also includes a plurality of rings that are sleeved on the rotating shaft 122 . There are three bearing pads 125 , and one bearing pad 125 is provided on the side of each first bearing 124 . One end of the bearing washer 125 is in contact with the bearing inner ring, and the other end of the bearing washer 125 is in contact with the adjacent sub-support 121. In this way, the bearing inner ring and the adjacent bearing can be connected.
  • the sub-supports 121 are pressed against each other to prevent the inner ring of the bearing from rotating with the rotation of the sub-runner 123, ensuring that the inner ring of the bearing does not rotate relative to the rotating shaft 122. In this way, the rotation of the sub-runner 123 depends entirely on the outer ring of the bearing, and the friction loss is low.
  • the bearing pad 125 is made of copper or stainless steel, has a bowl-like cross-section, and has mechanical properties that can be slightly compressed in the thickness direction.
  • the bottom of the bowl-shaped structure The end of the bearing is in contact with the inner ring of the bearing, and the bowl end of the bowl-shaped structure is in contact with the adjacent sub-support 121 , thereby pressing the inner ring of the bearing and the adjacent sub-support 121 against each other.
  • the rotating shaft assembly 12 further includes two sets of first fasteners 126 , and one end of the rotating shaft 122 is fixedly connected to the rotating shaft support through one set of the first fasteners 126 . , the other end is fixedly connected to the rotating shaft support through another set of first fasteners 126 .
  • the first fastener 126 passes through the outermost sub-support 121 and is fixedly connected to the end of the rotating shaft 122, thereby fixing the rotating shaft 122 and the rotating shaft support.
  • a gasket 127 is provided between the first fastener 126 and the rotating shaft support.
  • the first fastener 126 can be a female screw.
  • a gasket 127 is provided between the first fastener 126 and the outermost sub-support 121 to make the connection between the rotating shaft 122 and the rotating shaft support more secure. Further, the gap between the sub-support 121 and the inner ring of the bearing can be set to zero or slight interference (depending on the material and part size), so that through the locking force of the sub-screws at both ends, the bearing washer 125 and There is a pressure on the inner ring of the bearing, and this pressure can ensure that the inner ring of the bearing will not rotate relative to the rotating shaft 122 .
  • the sub-runner 123 can be injection molded from engineering plastic POM, with a through hole in the middle and slots at both ends to place the first bearing 124, which is sleeved on the rotating shaft 122. After assembly, the first bearing 124 can be placed on the rotating shaft 122. Passive rotation.
  • the rotating shaft 122 can be a D-shaped shaft with a D-shaped cross-section. Its main function is to fix the bearing inner ring and prevent the bearing inner ring from rotating relative to the rotating shaft.
  • the rotating shaft 122 can be made of stainless steel and penetrated through a plurality of sub-supports 121 .
  • Threads 1220 may be provided at both ends of the rotating shaft 122 for fastening with the first fastener 126 and for fixing on the middle frame of the electronic device to fix the rotating shaft.
  • the first fastener 126 can be made of metal, such as a nut screw, and passes through the gasket 127 to be locked on the rotating shaft 122 to lock the rotating shaft 122 with the rotating shaft support.
  • the first bearing 124 can be made of stainless steel or ceramic, and is assembled on the sub-runner 123. A first bearing 124 is assembled at both ends of each runner 123, and a bearing gasket 125 is assembled.
  • the bearing spacer 125 can be made of metal.
  • the inner ring of the bearing is fixed to prevent the inner ring of the bearing from rotating together with the outer ring of the bearing, and has the function of grounding the first bearing and the bracket.
  • the rotating shaft 122 is rotatably connected to the shaft hole, and the rotating wheel is fixedly connected to the rotating shaft 122. It can be understood that the rotating shaft 122 is fixedly connected to the rotating wheel. The rotating wheel does not rotate relative to the rotating shaft 122. The rotating shaft 122 is rotatable relative to the rotating shaft support. When the flexible display screen 90 is unfolded or retracted, the rotating wheel and the rotating shaft 122 are driven to rotate together.
  • the rotating shaft support includes a plurality of sub-supports 121, which are spaced apart from the bracket 11 in a direction perpendicular to the first direction X.
  • the sub-supports 121 are provided with sub-axis holes, so The sub-shaft holes of the plurality of sub-supports 121 are coaxially arranged to form the shaft holes.
  • the rotating shaft 122 passes through the plurality of sub-shaft holes to be fixedly connected to the plurality of sub-supports 121 .
  • the runner includes a plurality of sub-runners 123, and one sub-runner 123 is provided between two adjacent sub-supports 121.
  • the rotating shaft support is configured as a plurality of sub-supports 121
  • the runner is configured as a plurality of sub-runners 123
  • the sub-supports 121 and sub-runners 123 are alternately arranged, which can enhance the rotating performance of the runner while ensuring the rotation performance of the runner.
  • the strength of the bearing improves the overall structural strength.
  • each sub-support 121 of the rotating shaft support is fixedly connected to the bracket 11, or can be integrally formed with the bracket 11.
  • the size of each sub-support 121 can be different. For example, it can be divided into a small support and a large support.
  • each sub-runner 123 can also be different, for example, divided into a large runner and a small runner, which can be set according to actual needs, and this disclosure does not limit this.
  • the rotating shaft assembly 12 further includes two second bearings 128 , respectively sleeved on both ends of the rotating shaft 122 , and the ends of the rotating shaft 122 are connected to the second bearings 128 through the second bearings 128 .
  • the above-mentioned rotating shaft support is rotationally connected.
  • the second bearing 128 includes a bearing inner ring and a bearing outer ring that is rotationally connected to the bearing inner ring.
  • the bearing inner ring is connected to the rotating shaft support, and the bearing outer ring is connected to the rotating shaft 122 .
  • the rotating shaft 122 rotates relative to the sub-support 121 of the rotating shaft support through the second bearing 128, and the second bearing 128 can reduce the friction loss caused by the rotation of the rotating shaft 122.
  • the sub-runner 123 and the rotating shaft 122 may be designed in a radial direction to ensure that the sub-runner 123 rotates as the rotating shaft 122 rotates.
  • the sub-support 121 of the rotating shaft support and the rotating shaft 122 may be designed to avoid in the radial direction to ensure that there is a gap between the sub-runner 123 and the rotating shaft 122 to achieve rotation.
  • only two second bearings 128 are needed to realize the rotation of the rotating shaft 122 relative to the rotating shaft support, which reduces the number of bearings and simplifies the model design.
  • the rotating shaft assembly 12 further includes two shaft covers 130 , one of which abuts against the adjacent inner ring of the rotating shaft 122 from one end of the shaft hole, and the other One of the shaft caps 130 is in contact with the adjacent inner ring of the rotating shaft 122 from the other end of the shaft hole.
  • the rotating shaft assembly 12 further includes a plurality of second fasteners 129 , and the second fasteners 129 pass through the sub-runner 123 and are fixedly connected to the rotating shaft 122 .
  • a sub-runner 123 can be fixedly connected to the rotating shaft 122 through a second fastener 129, or can be fixedly connected to the rotating shaft 122 through a plurality of second fasteners 129, and this disclosure is not limited.
  • an electronic device which may be a mobile phone, a mobile terminal, a tablet computer, a notebook computer, a terminal handheld device with a screen, a vehicle-mounted display device, etc.
  • the electronic device includes a housing, a telescopic screen structure as described in the above embodiment, and a driving mechanism 99.
  • the housing includes a first housing 91 and a second housing 92 slidably disposed on the first housing 91 along the first direction X.
  • the first housing 91 and the second housing 92 are enclosed A receiving structure 991 with an opening is formed.
  • the telescopic screen structure is provided in the receiving structure 991, the rotating shaft assembly 12 is located on one side close to the second housing 92, and the first end 901 of the flexible display screen 90 is located on a side close to the bottom of the housing. side, the second end 902 of the flexible display screen 90 is connected to the first housing 91 to cover the opening.
  • the driving mechanism 99 is disposed in the receiving structure 991.
  • the driving mechanism 99 is connected to the slide rail mechanism and is used to drive the slide rail mechanism to move along the first direction X.
  • the first housing 91 can be provided with a support plate 93
  • the second end of the flexible display screen 90 is connected to the support plate 93
  • the support plate 93 can support and protect the flexible display screen 90 .
  • the driving mechanism 99 includes a frame body 30 and a driving assembly and a transmission assembly installed on the frame body 30 .
  • the frame body 30 may be provided with a mounting part 302 for connecting to the middle frame of the electronic device.
  • the mounting part 302 is fixed on the middle frame through fasteners, so that the driving mechanism 99 is installed on the middle frame.
  • the number of driving mechanisms 99 can be set according to actual needs. In the example shown in FIG. 28 , the number of driving mechanisms 99 is two, which are symmetrically arranged on the first housing 91 and can be driven more stably.
  • the slide rail mechanism moves so that the force on both sides of the slide rail mechanism is even and the movement is more stable.
  • the driving assembly includes a driving member 31 and a reduction gearbox structure 32 connected to the driving member 31 .
  • the driving member 31 and the reduction gearbox structure 32 are both installed on the frame 30 .
  • the driving member 31 may be a driving motor or a driving motor.
  • the transmission assembly includes a first transmission member 14 and a second transmission member 15 movably connected to the first transmission member 14.
  • the first transmission member 14 is installed on the frame 30 and connected with the reduction box structure 32.
  • the second transmission member 15 is used for transmission connection with the flexible display screen of the telescopic screen structure.
  • the driving member 31 outputs a first torque to the reduction box structure 32, and the reduction box structure 32 converts the first torque into a second torque and outputs it to the first transmission member 14 to drive the first torque.
  • the transmission member 14 rotates, and the second transmission member 15 moves relative to the first transmission member 14 to drive the flexible display screen to move.
  • the first torque is smaller than the second torque.
  • the driving mechanism drives the slide rail mechanism to move along the first direction X, driving the second housing 92 , the slide rail assembly 20 , the first end of the flexible display screen 90 and The slider 22 moves along the first direction X relative to the first housing 91 to switch the flexible display screen 90 between a retracted state and an unfolded state.
  • the driving mechanism 99 converts the first torque output by the driving member into a second torque with a larger torque through the reduction box structure, and then transmits it to the first transmission member to rotate the first transmission member, thereby driving the flexible display screen to move.
  • the low torque of the driving member can be converted into high torque to drive the first transmission member to rotate, thereby better driving the flexible display screen to move.
  • the rotating shaft assembly 12 is provided at an end of the second housing 92 away from the first housing 91 .
  • the rotating shaft assembly 12 includes a track portion 120 .
  • the flexible display screen 90 is wound around the track portion 120 , a first end of the flexible display screen 90 is connected to the slide rail mechanism, and a second end of the flexible display screen 90 is connected to the first housing. 91 connects and covers the opening. It can be understood that the bending portion 904 of the flexible display screen 90 is arranged around the track portion 120 .
  • the thickness of the track portion 120 along the third direction Z is set to gradually decrease along the first direction X from the end close to the first housing 91 to the end far away from the first housing 91 , that is, the track portion 120
  • the thickness along the third direction Z gradually decreases from left to right in the examples of Figures 1 and 2, forming a cone-like structure.
  • the track portion 120 includes a track surface
  • the flexible display screen 90 is arranged around the track surface
  • the end surface of the track surface away from the first housing 91 is an arc-shaped surface.
  • the flexible display screen 90 can bend and move along the trajectory surface, so that the running trajectory of the end of the flexible display screen 90 is an elliptical motion trajectory, which can offset the arching problem of the screen caused by forces in different directions.
  • the track surface is elliptical.
  • the track surface can also be in other shapes.
  • the track surface can include a first track surface and a second track surface connected to both ends of the first track surface.
  • the first track surface can be in the form of an arc surface.
  • the second track surface may be a flat surface. One end of the second track surface is connected to the first track surface, and the other end extends toward the outside of the housing, forming an included angle with the first direction, so that the track portion 120 moves along the third direction.
  • the thickness in the direction Z gradually decreases along the first direction X from the end close to the first housing 91 to the end far away from the first housing 91 .
  • the track part 120 includes a track body 1201 and a runner 123.
  • the track body 1201 is formed with a receiving cavity, and the runner 123 is movably arranged in the receiving cavity.
  • the flexible display screen 90 is arranged around the track body 1201 and part of the runner 123.
  • the outer contour surface of the track body 1201 and part of the outer contour surface of the runner 123 jointly form the track surface. In this way, the outer contour surfaces of the track body 1201 and the wheel 123 cooperate to form an elliptical track surface of the track portion 120, which can solve the problem of arching at the bends when the screen moves.
  • the driving assembly may also include a control circuit board 312 connected to the driving member 31 for controlling the driving member 31 according to instructions.
  • the control circuit board 312 may be a flexible FPC circuit board.
  • the control circuit board 312 is connected to the terminal motherboard of the electronic device. When the flexible display screen needs to be unfolded, the terminal motherboard transmits the unfolding command to the control circuit board 312.
  • the control circuit board 312 controls the rotation of the drive motor, and the drive motor passes through the reduction box.
  • the structure 32 amplifies the torque of the drive motor and drives the second transmission member 15 to run linearly relative to the first transmission member 14.
  • the second transmission member 15 drives the flexible display screen to expand outward, thereby completing the unfolding action of the flexible display screen. .
  • a retracting command can be sent to the terminal mainboard by clicking on the display screen of the electronic device.
  • the terminal mainboard transmits the retracting command to the control circuit board 312, and the control circuit board 312 controls the rotation of the drive motor ( (opposite to the direction of stretching and rotation), the drive motor amplifies the torque of the drive motor through the reduction box structure 32, drives the second transmission member 15 to run linearly relative to the first transmission member 14, and the second transmission member 15 drives the flexible display screen to retract to the initial position.
  • control circuit board 312 is connected to the drive motor through welding, and the control circuit board 312 is connected to the terminal motherboard, or is connected to the motherboard terminal through the BTB connector to energize the drive motor, and the drive motor is controlled through the control signal. Turn.
  • the driving motor may be a DC stepper motor
  • the stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement.
  • the motor's speed and stopping position only depend on the frequency and number of pulses of the pulse signal, and are not affected by load changes.
  • the stepper driver receives a pulse signal, it drives the stepper motor according to the The set direction rotates at a fixed angle, and its rotation runs step by step at a fixed angle.
  • the angular displacement can be controlled by controlling the number of pulses to achieve accurate positioning.
  • the speed and acceleration of the motor rotation can be controlled by controlling the pulse frequency, thereby achieving the purpose of speed regulation and inputting the rotational torque.
  • the first transmission member 14 is a screw
  • the second transmission member 15 is a nut threaded with the screw. Both ends of the screw are connected to the frame 30 through bearings 141 .
  • the bracket 11 of the telescopic screen structure is provided with a transmission member 13 .
  • the screw is extended along the first direction X, and the nut is in contact with the transmission member 13 .
  • the driving motor drives the screw to rotate, driving the nut and the transmission member to move along the first direction X, thereby driving the slide rail mechanism to move along the first direction X.
  • the first transmission member and the second transmission member may also adopt structures such as gear racks and worm gears, which are not limited in this disclosure.
  • the driving mechanism 99 further includes a guide rod 33 provided on the frame 30 , and the guide rod 33 is arranged parallel to the screw.
  • the nut includes a first socket part 151 and a second socket part 152.
  • the first socket part 151 is threadedly connected to the screw, and the second socket part 152 is socketed to the guide rod 33.
  • the second transmission member 15 is also provided with a bump 153 for abutting with the transmission member 13 of the bracket 11 of the telescopic screen structure. It can be understood that the nut is threadedly connected to the lead screw through the first sleeve portion 151, and when the lead screw rotates, the nut moves linearly relative to the lead screw. During the movement, the second socket portion 152 moves along the guide rod 33 to guide the nut.
  • the driving member 31 includes an output shaft 311
  • the reduction gearbox structure 32 includes a first reduction gearbox and a second reduction gearbox.
  • the first reduction box includes a first gear 321
  • the second reduction box includes a second gear 322 and a third gear 323 (can be understood as screw teeth) that cooperates with the second gear 322.
  • the three gears 323 are connected to the first transmission member 14
  • the second gear 322 cooperates with the first gear 321
  • the first gear 321 is connected to the output shaft 311 .
  • the output shaft 311 outputs a first torque to the first gear 321, and the first torque is converted into a second torque through the second gear 322 and the third gear 323 and output to the first transmission member. 14.
  • the low torque output by the drive motor can be converted into high torque.
  • the reduction gearbox structure 32 further includes a reduction gearbox end cover 34 fixedly connected to one side of the frame 30 .
  • the side of the frame 30 is provided with a side frame 301 for fixed connection with the reduction gearbox end cover 34
  • the reduction gearbox end cover 34 is fixed to the side frame 301 .
  • the reduction box end cover 34 is fixed to the side frame 301 through a plurality of fasteners 342 (such as screws).
  • the first gear 321 and the second gear 322 are both connected to the reduction box end cover 34, and the third gear 323 is connected to the reduction box end cover 34 through the first transmission member 14.
  • the reduction box The end cover 34 serves to fix the first gear 321 , the second gear 322 , the third gear 323 and the first transmission member 14 .
  • the first reduction box includes a first bushing 324 fixed to the reduction box end cover 34 , and the first gear 321 is installed on the first bushing 324 .
  • the reduction box end cover 34 is provided with a first through hole 341
  • a first bushing 324 is fixed to the first through hole 341
  • the first gear 321 is a sun gear and is installed on the first bushing 324.
  • the second reduction gearbox includes a limiting column 35 fixed to the end cover 34 of the reduction gearbox.
  • the second gear 322 is installed on the limiting column 35.
  • the limiting column 35 limits the position of the second gear 322. and immobilization.
  • the first transmission member 14 is a screw
  • the end of the screw is connected to the reduction box end cover 34 through a bearing 141
  • the third gear 323 is connected to the screw.
  • the reduction box end cover 34 is also provided with a second through hole 343, a bearing 141 is installed in the second through hole 343, and one end of the screw is installed on the bearing 141 to be fixed on the frame 30.
  • the first reduction gearbox further includes: a fixed ring gear 36 , a driving tooth 37 , a planet gear carrier 38 and a planet gear 39 .
  • the fixed ring gear 36 is connected to the driving member 31 , and the output shaft 311 extends into the fixed ring gear 36 .
  • the driving teeth 37 are installed in the fixed ring gear 36 and fixed with the output shaft 311 .
  • the first reduction gearbox also includes a second bushing 371.
  • the driving teeth 37 are installed on the second bushing 371, which can protect and limit the driving teeth 37.
  • the planet carrier 38 is installed in the fixed ring gear 36 and cooperates with the first gear 321 .
  • the first reduction gearbox also includes a third bushing 381.
  • the planetary gear carrier 38 is installed on the third bushing 381, which can protect and limit the planetary gear carrier 38.
  • Planetary gears 39 are installed on the planetary gear carrier 38 and cooperate with the driving teeth 37;
  • the output shaft 311 outputs a first torque to the driving teeth 37 .
  • the first torque is decelerated by the driving teeth 37 , the planetary gear 39 , and the planetary gear carrier 38 and then transmitted to the first gear 321 .
  • Level one slowing effect The torque is then decelerated by the first gear 321 and then transferred to the second gear 322 to achieve a two-stage deceleration effect.
  • the torque is decelerated by the second gear 322 and then converted into a second torque and transmitted to the third gear 323 to achieve a three-level deceleration effect.
  • the third gear 323 then transmits the second torque to the first transmission member 14 to drive the first transmission member 14 to rotate.
  • a primary reduction gearbox is formed through the tooth cooperation of the driving teeth 37 , the driving teeth 37 and the planetary gears 39 .
  • the planet gear 39 can be used as a primary reduction gear
  • the first gear 321 can be used as a second reduction gear
  • the second gear 322 can be used as a third reduction gear
  • the third gear 323 can be used as a screw gear.
  • the first reduction gearbox is the core component of the driving mechanism. One end is installed and welded to the driving motor, and the other end is welded and fixed to the frame 30 .
  • the first reduction gearbox includes the output shaft 311 of the driving motor, the driving teeth 37 , the second bushing 371 , the planetary gear 39 , the planetary gear carrier 38 , the third bushing 381 , the fixed ring gear 36 , and the first gear 321 .
  • the output shaft 311, drive teeth 37, second bushing 371, planetary gear 39, planetary carrier 38, third bushing 381 and first gear 321 are all fixedly fitted on the fixed ring gear
  • the driving teeth 37 are fixed to the output shaft 311 of the driving motor, and the planet carrier 38 and the first gear 321 are cooperatively fixed.
  • the other end of the first gear 321 is fixed to the first bushing 324, and is fixed to the end of the reduction box through the first bushing 324.
  • the second gear 322 is fixed on the frame 30 and the reduction box end cover 34 through the limiting column 35 .
  • the third gear 323 is fixed on the first transmission member 14.
  • the first transmission member 14 is fixed on the frame 30 through the bearing 141, and the other end is also fixed on the reduction box end cover 34 through the bearing 141.
  • the end cover 34 of the reduction gearbox is fixed on the frame 30 through fasteners 342.
  • the first gear 321, the second gear 322 and the third gear 323 are matched through teeth to form a second and third stage reduction gearbox.
  • the torque output by the drive motor is decelerated through the first reduction box and the second reduction box, and a torque that is several times or dozens of times greater than the output torque is output to the screw, driving the screw to rotate.
  • the screw drives the nut to move.
  • the main function of the reduction gearbox structure is to convert the low torque output by the drive motor into high torque.
  • the frame body 30 can be manufactured using MIM (powder metallurgy), and the hole diameter and some dimensions need to be processed using a lathe or CNC machining center.
  • MIM powder metallurgy
  • the main function of the frame body 30 is to fix the reduction gearbox structure, screws, nuts, bearings, guide rods and other components. Therefore, the accuracy requirements of the frame body 30 are relatively high, and the flatness requirements are also relatively high.
  • the accuracy of the frame body 30 directly affects the stability of the entire driving mechanism.
  • the entire frame 30 can be fixed on the first housing 91 of the middle frame of the electronic device.
  • the nut can be made of MIM (powder metallurgy) and plastic two-color injection molding.
  • the plastic is engineering plastic (commonly used POM material), which has self-lubricating effect.
  • One side of the nut is fixed on the guide rod, and one end is fixed on the screw.
  • the screw guide groove needs to be designed at the end to facilitate the linear movement of the drive nut.
  • the nut is designed to connect and fix the bone position with the side sliding parts to promote the movement of the sliding parts.
  • the guide rod can be made of stainless steel, which requires relatively high surface roughness, and plays a guiding and fixing role in the nut.
  • the screw is generally made of high-strength tool steel and processed multiple times on a lathe or machining center.
  • Bearings are fixed at both ends of the screw, one end is fixed on the frame, and the other end is fixed on the end cover of the reduction box.
  • the drive motor drives the screw to rotate through the reduction box structure, and the screw drives the nut to move linearly. Therefore, the strength and accuracy of the screw directly affect the stability and smoothness of the nut pushing the sliding part.
  • the sliding member 22 is subject to the pre-tightening force of the elastic component at the starting position, and due to the existence of the limiting stop 25, remains in a static state.
  • the flexible display screen 90 is in a retracted state.
  • the driving mechanism is fixed on the middle frame (that is, the casing) of the whole machine as a power source.
  • the electronic device After the electronic device receives the instruction through the UI, it controls the driving mechanism to drive the slide rail mechanism to move in the first direction X (shown in Figure 23 is to the left (move), so that the entire slide rail mechanism slides out relative to the first housing 91 along the principle direction of the first housing 91 .
  • the first end of the flexible display screen 90 slides together with the sliding member 22 , and the wheel of the rotating shaft assembly is passively rotated by the force of the flexible display screen 90 .
  • the effect of the flexible display screen 90 gradually unfolding can be achieved, as shown in Figure 23.
  • the sliding member 22 can move from one end of the fixed base 21 to the other end under the pull of the flexible display screen, which can further lengthen the unfolded length of the flexible display screen 90 .
  • the elastic component is stretched by the sliding member 22 to generate an elastic pulling force on the sliding member 22 in the opposite direction to the sliding direction.
  • the flexible display screen 90 is always subject to this pulling force in the opposite direction, which is equivalent to pulling the flexible display screen 90 to the right. , making the stretched flexible display screen 90 smoother, ensuring that the curved trajectory of the flexible display screen 90 moves according to the design intention, and preventing problems such as screen bulging, bulging, and distortion that may visually cause the whole machine to slide open.
  • the sliding member 22 is pulled by the second end of the flexible display screen 90 and can move from one end of the fixed base 21 to the other end. Assuming that the sliding stroke of the slide rail mechanism relative to the first housing 91 is S, and the sliding stroke of the sliding member 22 is S, then the first end of the flexible display screen 90 moves a distance of 2S with the slide rail mechanism relative to the first housing 91 .
  • the drive motor starts to drive in reverse, retracting the slide rail mechanism and the flexible display screen.
  • the bracket and the fixed base move in reverse direction driven by the driving mechanism, the flexible display screen and the sliding part gradually retract under the elastic force of the elastic component, and the sliding part returns to the original position under the elastic force of the elastic component. to the starting position, thereby returning the flexible display to the retracted state. Therefore, the use of the slide rail mechanism of the present disclosure can smoothly and effectively ensure that the flexible display screen maintains the curved shape of the appearance during the sliding and retracting processes of the whole machine, and ensures the power caused by the friction force generated during the sliding and retracting processes of the screen.
  • the loss is at a low level, and the solution is operable and easy to implement, ensuring product reliability.
  • the housing includes a first housing 91 and a second housing 92 slidably disposed on the first housing 91 along the first direction X, so The first housing 91 and the second housing 92 are enclosed to form a receiving structure 991 with an opening.
  • the first housing 91 is provided with a first sliding part 911 arranged along the first direction X.
  • the first end 901 of the flexible display screen 90 is located on a side close to the bottom of the housing, and the second end 902 of the flexible display screen 90 is connected to the first housing 91 to cover the opening.
  • the opening is located at the top of the housing.
  • decorative pieces 94 may be provided on the outsides of the first housing 91 and the second housing 92 for protection and decoration.
  • the slide rail mechanism includes a bracket 11 connected to the first end 901 of the flexible display screen 90 .
  • the bracket 11 is provided with a second sliding part 912 that is adapted to the first sliding part 911 .
  • the first sliding part 911 is one of a sliding track and a sliding groove
  • the second sliding part 912 is the other of a sliding track and a sliding groove.
  • the sliding rail moves along the sliding groove, so that the sliding rail mechanism drives the flexible display screen 90 to slide along the first direction X relative to the first housing 91 to realize the deployment and expansion of the flexible display screen.
  • the first sliding part 911 is integrally formed with the first shell of the middle frame shell to facilitate production and processing. In the example shown in FIGS.
  • the first sliding part 911 is a sliding groove
  • the second sliding part 912 is a sliding track.
  • the first housing 91 is provided with the first housing 91 on both sides along the second direction (shown in the Y direction in FIG. 29 ) perpendicular to the first direction X (shown in the X direction in FIG. 29 ).
  • the second sliding parts 912 are provided on both sides of the bracket 11 along the second direction.
  • the sub-support 121 includes a first hoop base 1211 and a second hoop base 1212 spliced with the first hoop base 1211 .
  • a hoop seat 1211 and the second hoop seat 1212 are hooped on both sides of the rotating shaft 122 and connected to each other. Either one of the first hoop seat 1211 and the second hoop seat 1212 is fixed to the bracket 11 In the example shown in the figure, the second hoop base 1212 is fixedly connected to the bracket 11 .
  • the sub-support 121 adopts a detachable structural form in which the first hoop base 1211 and the second hoop base 1212 are spliced to each other, which is convenient for disassembly and installation.
  • the electronic device of the present disclosure can also include a main control board 59 and a support assembly 60.
  • the main control board 59 can be connected to the driving mechanism 99 and the flexible display 90 as the overall control end of the whole machine. Used to control the drive mechanism 99 and other components. Stacked functional components such as the battery, main control board 59, front camera, rear camera 97, earpiece 98, drive motor, drive circuit board, etc. are assembled on the first housing 91 of the middle frame assembly.
  • the first housing 91 can be used as a middle frame housing alone, and decorative pieces 94 can be provided on the outsides of both the first housing 91 and the second housing 92 for protection and decoration.
  • the support assembly 60 includes a first support plate 61 supported below the flexible display screen 90 and a second support plate 62 slidingly connected to the first support plate 61 .
  • the first support plate 61 is connected to the first shell.
  • the body 91 is connected, and the second support plate 62 is connected with the slide rail mechanism.
  • the second support plate 62 is connected to the slide rail assembly 20 .
  • the first support plate 61 can be fixed on the first housing 91 by adhesive, glue or screw connection
  • the second support plate 62 can be fixed on the slide by glue, glue or screw connection. on the slide rail assembly 20 of the rail mechanism.
  • the first end of the flexible display screen 90 can be fixed on the first support plate by gluing or dispensing glue to achieve a better fixing effect.
  • the slide rail mechanism moves relative to the first housing 91 along the first direction X, driving the second housing 92 , the first end of the flexible display screen 90 and the second support plate 62 to face each other.
  • the first housing 91 moves to switch the flexible display screen 90 between an unfolded state and a retracted state.
  • the second support plate 62 slides relative to the first support plate 61 to support the expanded portion of the flexible display screen 90 relative to the first housing 91 .
  • the flexible display screen 90 is supported by the support assembly 60 , and the movement of the slide rail mechanism drives the flexible display screen 90 to move, so as to realize the expansion and retraction of the flexible display screen 90 .
  • the movement of the slide rail mechanism drives the second support plate 62 to slide relative to the first support plate 61 to support the unfolded portion of the flexible display screen 90 relative to the first housing 91, thus providing a comprehensive support for the flexible display screen 90. This ensures that the flexible display screen 90 does not sink when the product is in an unfolded state.
  • the first support plate 61 includes a first main body part 611 and a plurality of guide grooves 612 provided on the side of the first main body part 611 .
  • a main body part 611 is connected to the first housing 91.
  • the plurality of guide grooves 612 are spaced apart along a second direction perpendicular to the first direction X.
  • the guide grooves 612 extend along the first direction X. set up.
  • the second support plate 62 includes a second main body part 621 and a plurality of guide rail bars 622 provided on the side of the second main body part 621.
  • the second main body part 621 is connected to the slide rail mechanism.
  • a plurality of guide rail bars 622 are arranged at intervals along the second direction.
  • the number of the guide rail bars 622 is the same as the guide groove 612 .
  • the guide rail bars 622 are slidably disposed in the guide groove 612 in one-to-one correspondence. It should be noted that in other examples, the positions of the guide grooves and the guide rail bars can be interchanged, that is, multiple guide rail bars are provided on the side of the first main body part 611, and multiple guide grooves are provided on the side of the second main body part 621. , the guide rail strips are still slidably disposed in the guide grooves in one-to-one correspondence, and the function of the second support plate 62 being slidably disposed relative to the first support plate 61 can also be achieved.
  • first support plate 61 and the second support plate 62 of the support assembly 60 are supported in a phase-sequential manner, similar to a comb or comb tooth structure.
  • second support plate 62 slides relative to the first support plate 61 , try to reduce the distance between the two support positions, so that the effect of supporting the flexible display screen 90 will be better.
  • limiting pieces 63 are provided on both sides of the opening of the guide groove 612 , and the limiting pieces 63 partially protrude from the side walls of the guide groove 612 .
  • the guide rail bar 622 includes a first part 6221 and a second part 6222 connected to the first part 6221. The surface of the first part 6221 is flush with the two limiting pieces 63.
  • the second part 6222 is slidably disposed in the guide groove 612 , and two ends of the second part 6222 are respectively located between the bottom wall of the guide groove 612 and the protruding part of the limiting piece 63 .
  • the limiting piece 63 can be fixed at the opening of the guide groove 612 by electric welding.
  • the limiting piece 63 partially protrudes from the side wall of the guide groove 612, which can limit the guide rail bar 622 in the guide groove 612, prevent the guide rail bar 622 from being separated from the guide groove 612, and improve the overall stability of the support assembly.
  • the guide groove 612 and the two limiting pieces 63 form a stepped groove.
  • the guide rail bar 622 has a stepped structure that matches the stepped groove. By adopting the stepped matching structure, the guide rail bar 622 can slide better in the guide groove 612 without breaking away from the guide groove 612 .
  • the electronic device of the present disclosure may also include a control mechanism.
  • the control mechanism includes a displacement sensor and a controller electrically connected to the displacement sensor.
  • the displacement sensor is used to measure The displacement change of the slide rail mechanism relative to the first housing 91 .
  • the controller is provided in the first housing 91 and is used to control the first stroke amount of the driving mechanism 99 to drive the slide rail mechanism to move along the first direction X according to the displacement change amount.
  • the driving mechanism 99 drives the slide rail mechanism to move along the first direction X, driving the bracket 11, the second housing 92, and the first end 901 of the flexible display screen 90 relative to the first housing. 91 moves along the first direction X to switch the flexible display screen 90 between the retracted state and the unfolded state.
  • the displacement sensor is used to measure the displacement change of the bracket 11 of the slide rail mechanism relative to the first housing 91
  • the driving mechanism 99 drives the bracket 11 of the slide rail mechanism to move along the first direction X.
  • driving the bracket 11, the second housing 92, and the first end 901 of the flexible display screen 90 to move along the first direction X relative to the first housing 91.
  • there are two driving mechanisms 99 which are symmetrically arranged on the first housing 91 .
  • the nuts of the two sets of driving mechanisms push the bracket to move outward or retract relative to the first housing, and a dual driving mechanism is used to ensure the balance of the pushing force.
  • the displacement change of the slide rail mechanism relative to the first housing 91 is measured by a displacement sensor, and the controller can determine the first stroke amount that the slide rail mechanism needs to move along the first direction X based on the displacement change. , and outputs a control signal to the driving mechanism.
  • the driving mechanism drives the slide rail mechanism to move along the first direction X according to the control signal, driving the flexible display screen 90 to move, thereby achieving the purpose of accurately controlling the movement stroke of the flexible display screen 90 .
  • the displacement sensor includes a Hall magnet 71 and a plurality of Hall sensors 72 electrically connected to the controller.
  • the Hall magnet 71 is provided on the slide rail mechanism and the third One of the housings 91 , the plurality of Hall sensors 72 are provided on the slide rail mechanism and the other of the first housing 91 .
  • the Hall magnet 71 is provided on the slide rail mechanism, and the plurality of Hall sensors 72 are provided on the first housing 91 .
  • the slide rail mechanism moves relative to the first housing 91 , and the plurality of Hall sensors 72 sense changes in the magnetic field of the Hall magnets 71 to obtain the position of the slide rail mechanism relative to the first housing 91 .
  • Displacement change is
  • the Hall magnet 71 is provided on the bracket 11 of the slide rail mechanism.
  • the Hall sensor 72 can be a Hall chip.
  • the control principle of the controller is to use the Hall chip to cooperate with the Hall magnet to fix the Hall magnet on the bracket 11 of the moving slide rail mechanism.
  • the Hall magnet generates When the magnetic field changes, the Hall chip senses magnetic fields of different strengths and generates changes in electrical signals and sends them to the controller.
  • the controller determines the displacement change of the bracket of the slide rail mechanism relative to the first housing based on the changes in the electrical signals, that is, the change in the slide rail mechanism.
  • the stroke amount that the bracket of the rail mechanism has moved relative to the first housing is calculated, and the first stroke amount that the bracket of the slide rail mechanism still needs to move relative to the first housing is calculated, thereby controlling the driving mechanism to drive the bracket to move the first stroke amount, This achieves the purpose of accurately controlling the movement of the flexible display screen.
  • the Hall magnet 71 is provided on the slide rail mechanism, and the plurality of Hall sensors 72 are provided at intervals along the first direction X.
  • the first housing 91 is described.
  • the Hall magnet 71 is installed on the bracket 11 of the slide rail mechanism.
  • the number of Hall sensors 72 is four, and the spacings of the four Hall sensors 72 along the first direction X (that is, indicated by the arrow direction in Figure 48) are respectively X1, Different spacings are also maintained between 71 and the four Hall sensors 72. This spacing needs to meet the sensing range of the Hall sensors.
  • the displacement change of the bracket relative to the first housing can be calculated more accurately, thereby achieving the purpose of accurately controlling the movement stroke of the flexible display screen.
  • the displacement sensor further includes a sensor circuit board 73 disposed on the first housing 91 , and the plurality of Hall sensors 72 are disposed on the sensor at intervals along the first direction X. Circuit Board 73.
  • the driving mechanism includes a driving circuit board 17 that is electrically connected to the sensor circuit board 73 .
  • the controller includes a control circuit board electrically connected to the drive circuit board 17 .
  • the sensor circuit board 73 can use an FPC flexible circuit board to reduce the occupied space.
  • the control circuit board is electrically connected to the sensor circuit board 73 and is used to receive data measured by the sensor circuit board 73 . It is electrically connected to the drive circuit board and used to send control signals to the drive circuit board.
  • the driving circuit board 17 is fixed on the first shell 91 of the middle frame housing, and the Hall chip can be attached to the sensor circuit board 73.
  • the sensor circuit board 73 is connected and fixed with the driving circuit board 17 using a connector.
  • the sensor circuit board 73 is fixed on the first housing 91, that is, the middle frame bracket.
  • the drive circuit board 17 is connected to the control circuit board through a flexible circuit board.
  • the Hall magnet 71 is fixed on the bracket 11 through adhesive.
  • the bracket 11 can be provided with a receiving groove 74 , and the Hall magnet 71 is embedded in the receiving groove 74 to ensure the stability of the Hall magnet 71 .
  • the driving mechanism drives the bracket 11 to move, the Hall magnet 71 also moves together, creating a changing distance from the Hall chip.
  • the bracket 11 of the slide rail mechanism is fixedly connected to the second transmission member 15 of the driving mechanism.
  • the driving mechanism drives the bracket 11 to slide
  • the distance relative to the Hall chip changes, and the Hall magnet provided on the bracket 11 of the slide rail mechanism also changes.
  • the distance changes with the movement of the bracket 11.
  • the N/S poles of the Hall magnet form a closed-loop magnetic field.
  • the Hall chip is within the range of this magnetic field, causing the Hall chip to generate a signal. This signal It can position the position signal that the slide rail mechanism is closed in place.
  • the Hall magnet moves outward with the side bracket, the magnetic field of the Hall magnet changes.
  • the Hall chip uses the change in the magnetic field to judge the distance the bracket is pushed out, and generates an electrical signal and transmits it to the controller (which can be understood as The terminal product CPU), the controller then sends a control signal to the drive circuit board based on this signal to drive the drive motor to rotate or stop, thereby controlling the movement stroke of the nut relative to the screw, thereby controlling the sliding stroke of the bracket, thereby achieving precise control of flexibility.
  • the controller is also electrically connected to the flexible display screen 90 and is further configured to determine the flexibility of the slide rail mechanism based on the first stroke amount of the slide rail mechanism moving along the first direction X.
  • the display screen 90 expands or retracts a second stroke amount, and controls the display size of the flexible display screen 90 according to the second stroke amount. It can be understood that the controller controls the flexible display according to the first stroke amount of the slide rail mechanism moving along the first direction X by receiving and sensing the signal change of the Hall chip, and according to the second stroke amount.
  • the display size of the flexible display screen 90 can be controlled to control the display changes of the flexible display screen 90, so that the screen can be displayed while sliding, and a screen display ratio can be controlled at any stroke to ensure the display performance of the screen.

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Abstract

一种电子设备。电子设备包括壳体,壳体包括第一壳体(91)和第二壳体(92),第一壳体(91)与第二壳体(92)围合形成具有开口的收容结构(991)。滑轨机构,设置于收容结构(991)内并与第二壳体(92)连接,滑轨机构沿第一方向与第一壳体(91)滑动连接。转轴组件(12),设于第二壳体(92)内远离第一壳体(91)的一端,转轴组件(12)包括轨迹部(120);轨迹部(120)沿与第一方向垂直的第三方向的厚度,沿第一方向自靠近第一壳体(91)的一端向远离第一壳体(91)的一端逐渐减小。柔性显示屏(90),绕设于轨迹部(120),柔性显示屏(90)的第一端与滑轨机构连接,柔性显示屏(90)的第二端与第一壳体(91)连接并覆盖开口。如此,柔性显示屏(90)运动时,可以使柔性显示屏(90)在靠近转轴组件(12)的位置能够始终与轨迹部(120)相贴合,从而能够实现比较平整的显示面,解决屏幕起拱的问题。

Description

电子设备 技术领域
本公开涉及电子产品技术领域,尤其涉及一种电子设备。
背景技术
随着屏幕技术不断进步,折叠柔性屏规模量产,全球0.01mm厚柔性显示屏问世,让终端产品形式越来越丰富,从智能穿戴到智能家居,再到智能手机终端,超薄柔性屏幕会让未来的产品设计多向性,折叠手机,环形手机,异曲面终端产品等等。同时,5G的到来,让所有的智能产品电连接,数据传输的加快,可以让智能终端产品的一些模块从智能终端产品中分离,也能实现功能,如拍照模块,BOX声学模块等。电池技术进一步发展,让终端产品体积更小,电池容量更高,终端产品设计形式更加灵活。
随着人们对柔性屏产品要求的提升,当处理不同的作业任务如看视频、打电话时,需要通过增大或缩小显示面积以提升产品体验度,目前主要包括两种屏幕扩展结构:折叠屏结构和伸缩屏结构。
发明内容
本公开提供一种伸缩屏结构及电子设备,以解决相关技术中的至少部分问题。
本公开提供一种电子设备,以解决相关技术中的至少部分问题。
本公开实施例提供一种电子设备,包括:
壳体,包括第一壳体和第二壳体,所述第一壳体与所述第二壳体围合形成具有开口的收容结构;
滑轨机构,设置于所述收容结构内并与所述第二壳体连接,所述滑轨机构沿第一方向与所述第一壳体滑动连接;
转轴组件,设于所述第二壳体内远离所述第一壳体的一端,所述转轴组件包括轨迹部;所述轨迹部沿与所述第一方向垂直的第三方向的厚度,沿所述第一方向自靠近所述第一壳体的一端向远离所述第一壳体的一端逐渐减小;
柔性显示屏,绕设于所述轨迹部,所述柔性显示屏的第一端与所述滑轨机构连接,所述柔性显示屏的第二端与所述第一壳体连接并覆盖所述开口。
在一些可选的实施方式中,所述轨迹部包括轨迹面,所述柔性显示屏绕设于所述轨迹面,所述轨迹面远离所述第一壳体的端面呈弧形面。
在一些可选的实施方式中,所述轨迹部包括轨迹本体和转轮,所述轨迹本体形成有收容腔,所述转轮活动设置于所述收容腔内;
所述柔性显示屏绕设于所述轨迹本体及部分所述转轮,所述轨迹本体 的外轮廓面和所述转轮的部分外轮廓面共同形成所述轨迹面。
在一些可选的实施方式中,所述轨迹面呈椭圆形面。
在一些可选的实施方式中,还包括伸缩屏结构,所述伸缩屏结构包括所述柔性显示屏和支撑组件;
其中,所述柔性显示屏设有第一磁性组件;所述支撑组件支撑于所述柔性显示屏下方,所述支撑组件包括第一支撑板和第二支撑板,所述第二支撑板与所述柔性显示屏连接,并与所述第一支撑板滑动连接;所述第一支撑板和所述第二支撑板中的至少一者设有与所述第一磁性组件磁吸配合的第二磁性组件;
所述伸缩屏结构包括展开状态和收回状态,所述伸缩屏结构在所述展开状态和所述收回状态之间切换时,所述第二支撑板相对于所述第一支撑板沿远离或靠近所述第一支撑板的方向滑动,所述柔性显示屏与所述第二支撑板同步运动,所述第二支撑板用于支撑所述柔性显示屏相对所述第一支撑板展开的部分。
在一些可选的实施方式中,所述第一磁性组件包括:
第一金属件,连接于所述柔性显示屏靠近所述支撑组件的一侧;
第二金属件,连接于所述第一金属件。
在一些可选的实施方式中,所述柔性显示屏包括本体部和与所述本体部连接的折弯部;所述第一金属件不具有磁性,所述第一金属件连接于所述本体部和所述折弯部靠近所述支撑组件的一侧;所述第二金属件具有磁性,连接于所述第一金属件位于所述折弯部所在区域内的部分。
在一些可选的实施方式中,所述第一金属件包括网格金属片;和/或
所述第二金属件包括条形金属片。
在一些可选的实施方式中,所述第一支撑板包括第一主体部和设置于所述第一主体部的侧部的多个第一导向部,所述第一导向部沿第一方向延伸设置,所述多个第一导向部沿与所述第一方向垂直的第二方向间隔设置;
所述第二支撑板包括第二主体部和与所述第一导向部滑动配合的多个第二导向部,所述多个第二导向部设置于所述第二主体部的侧部,所述第二导向部沿所述第一方向延伸设置,所述多个第二导向部沿所述第二方向间隔设置。
在一些可选的实施方式中,所述第二磁性组件包括至少一个磁吸件,所述第二主体部和所述第二导向部中的至少一者设有凹槽部,所述磁吸件设于所述凹槽部内。
在一些可选的实施方式中,所述第二主体部设有第一凹槽部,所述第一凹槽部沿所述第一方向延伸设置;和/或
至少一个所述第二导向部设有第二凹槽部,所述第二凹槽部沿所述第二方向延伸设置。
在一些可选的实施方式中,所述磁吸件为多个;
所述第二主体部设有沿所述第二方向间隔设置的至少两个所述第一凹槽部;或
至少一个所述第二导向部设有沿所述第一方向间隔设置的至少两个所述第二凹槽部;或
所述第二主体部设有沿所述第二方向间隔设置的至少两个所述第一凹槽部,至少一个所述第二导向部设有沿所述第一方向间隔设置的至少两个所述第二凹槽部。
在一些可选的实施方式中,所述第一导向部包括相互适配的导槽和导轨条中的一者,所述第二导向部包括相互适配的导槽和导轨条中的另一者。
本公开的电子设备,将转轴组件的轨迹部沿与第一方向垂直的第三方向的厚度,沿第一方向自靠近第一壳体的一端向远离第一壳体的一端逐渐减小。柔性显示屏绕设于轨迹部,柔性显示屏的第一端与滑轨机构连接,柔性显示屏的第二端与第一壳体连接并覆盖开口。如此,柔性显示屏运动时,可以使柔性显示屏在靠近转轴位组件的位置能够始终与轨迹部相贴合,从而能够实现比较平整的显示面,解决屏幕起拱的问题。
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和解释性的,并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明的实施例,并与说明书一起用于解释本发明的原理。
图1所示为本公开一示例性实施例的电子设备收回状态的结构示意图;
图2所示为本公开一示例性实施例的电子设备展开状态的结构示意图;
图3是图2中A处的局部放大示意图;
图4所示为本公开一示例性实施例的伸缩屏结构的结构示意图;
图5所示为本公开一示例性实施例的伸缩屏结构的局部放大示意图;
图6和图7所示分别为本公开一示例性实施例的支撑组件展开状态的结构示意图;
图8A是图7中A-A面的剖视图;
图8B是图8A中A处的放大示意图;
图9所示为本公开一示例性实施例的伸缩屏结构的爆炸图;
图10所示为本公开一示例性实施例的滑轨机构的滑轨组件的分解示意图;
图11所示为本公开一示例性实施例的滑轨机构的结构示意图;
图12所示为本公开一示例性实施例的滑轨机构的滑轨组件的结构示意图;
图13是图12沿X1-X1方向的剖视图;
图14是图13中A处的局部放大示意图;
图15是图13中B处的局部放大示意图;
图16是图13中C处的局部放大示意图;
图17所示为本公开一示例性实施例的滑轨机构的弹性组件的结构示 意图;
图18所示为本公开一示例性实施例的伸缩屏结构的结构示意图;
图19所示为本公开一示例性实施例的伸缩屏结构的转轴组件的结构示意图;
图20是图19中A处的放大示意图;
图21所示为本公开另一示例性实施例的伸缩屏结构的转轴组件的结构示意图;
图22和图23所示分别为本公开一示例性实施例的电子设备在柔性显示屏处于收回状态和展开状态时的示意图;
图24所示分别为本公开一示例性实施例的电子设备在柔性显示屏处于收回状态和展开状态时的对比图;
图25所示分别为本公开一示例性实施例的电子设备的驱动机构的立体示意图;
图26所示分别为本公开一示例性实施例的电子设备的驱动机构的爆炸示意图;
图27所示分别为本公开一示例性实施例的电子设备的驱动机构的第一减速箱的爆炸示意图;
图28所示分别为本公开一示例性实施例的电子设备的驱动机构的安装位置示意图;
图29所示分别为本公开一示例性实施例的电子设备的滑轨机构与部分壳体的结构示意图;
图30是图29中A处的放大示意图;
图31所示分别为本公开一示例性实施例的电子设备的滑轨机构的支架的结构示意图;
图32是图22中转轴组件部分的局部放大示意图;
图33是图30的剖视图;
图34所示分别为本公开另一示例性实施例的电子设备的滑轨机构的结构示意图;
图35所示分别为本公开又一示例性实施例的电子设备的滑轨机构的结构示意图;
图36所示分别为本公开一示例性实施例的电子设备的壳体与柔性显示屏的装配示意图;
图37所示分别为本公开一示例性实施例的电子设备的在收回状态的俯视图;
图38所示分别为本公开一示例性实施例的电子设备的在展开状态的俯视图;
图39所示分别为本公开一示例性实施例的电子设备的在收回状态的背视图;
图40所示分别为本公开一示例性实施例的电子设备的在展开状态的背视图;
图41所示分别为本公开一示例性实施例的电子设备的支撑组件在收回状态的结构示意图;
图42和图43所示分别为本公开一示例性实施例的电子设备的支撑组件在展开状态的结构示意图;
图44是图43中A-A面的剖视图;
图45是图44中A处的放大示意图;
图46所示分别为本公开一示例性实施例的电子设备的位移传感器的装配示意图;
图47所示分别为本公开一示例性实施例的电子设备的位移传感器的立体示意图;
图48是图46中XX-XX面的剖视图;
图49是图46中EE-EE面的剖视图。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本公开。除非另作定义,本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开说明书以及权利要求书中使用的“第一”“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”或者“一”等类似词语也不表示数量限制,而是表示存在至少一个。“多个”或者“若干”表示两个及两个以上。除非另行指出,“前部”、“后部”、“下部”和/或“上部”等类似词语只是为了便于说明,而并非限于一个位置或者一种空间定向。“包括”或者“包含”等类似词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同,并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而且可以包括电性的连接,不管是直接的还是间接的。
在本公开使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所 述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
下面结合附图,对本公开的电子设备进行详细说明,在不冲突的情况下,下述的实施例及实施方式中的特征可以相互组合。
参见图1至图7所示,本公开实施例提供一种电子设备,可以是手机、移动终端、平板电脑、笔记本电脑、带屏幕的终端手持设备、车载显示设备等。电子设备可以包括伸缩屏结构,壳体、滑轨机构、转轴组件12以及驱动机构99。其中,伸缩屏结构可以包括支撑组件60和柔性显示屏90。
其中,柔性显示屏90设有第一磁性组件40。支撑组件60支撑于所述柔性显示屏90下方,所述支撑组件60包括第一支撑板61和第二支撑板62,所述第二支撑板62与所述柔性显示屏90连接,并与所述第一支撑板61滑动连接。所述第一支撑板61和所述第二支撑板62中的至少一者设有与所述第一磁性组件40磁吸配合的第二磁性组件50。
所述伸缩屏结构包括展开状态和收回状态,所述伸缩屏结构在所述展开状态和所述收回状态之间切换时,所述第二支撑板62相对于所述第一支撑板61沿远离或靠近所述第一支撑板61的方向滑动,所述柔性显示屏90与所述第二支撑板62同步运动,所述第二支撑板62用于支撑所述柔性显示屏90相对所述第一支撑板61展开的部分。
如此设置,通过支撑组件60支撑柔性显示屏90,伸缩屏结构在展开状态和收回状态之间切换时,通过第二支撑板62支撑柔性显示屏90相对第一支撑板61展开的部分,对柔性显示屏90起到全面的支撑作用,将支撑的面积尽量加到最大,支撑点的位置分布尽量均匀,并且考虑零件制造的问题,支撑组件60的平面度可以控制在0.15以下,从而确保伸缩屏结构在展开状态下用户手指触摸屏幕按压时不会向下凹陷,提高用户体验。并且,柔性显示屏90运动过程中,通过第一磁性组件40和第二磁性组件50的磁吸配合,使得柔性显示屏90能够平整的贴附在支撑组件60上,减少起拱或虚位的问题。
在一些可选的实施方式中,所述第一磁性组件40包括第一金属件41和第二金属件42。第一金属件41连接于所述柔性显示屏90靠近所述支撑组件60的一侧。第二金属件42连接于所述第一金属件41。如此,将第一磁性组件40设置为双层金属结构,可以提高第一磁性组件40和第二磁性组件50的磁吸力。
在一些可选的实施方式中,所述柔性显示屏90包括本体部903和与所述本体部903连接的折弯部904。所述第一金属件41不具有磁性,所述第一金属件41连接于所述本体部903和所述折弯部904靠近所述支撑组件60的一侧。可以理解的,第一金属件41铺满整个柔性显示屏90的表面,便于屏幕折弯。所述第二金属件42具有磁性,连接于所述第一金属件41位于所述折弯部904所在区域内的部分。可以理解的,第二金属件42铺满折弯部904所在的区域。可选地,第一金属件41可以通过背胶方式贴附在 本体部903和折弯部904靠近所述支撑组件60的一侧。第二金属件42可以通过背胶方式贴附在第一金属件41位于折弯部904所在区域内的部分。可选地,所述第一金属件41可以包括网格金属片。所述第二金属件42可以包括条形金属片。在本实施例中,金属件可以采用钢片,也即第一金属件41可以包括网格钢片,第二金属件42可以包括条形钢片。当然,第一金属件41和第二金属件42的结构、形状、及材质可根据实际情况调整,本公开对此不作限制。
可以理解的,柔性显示屏90在向外展开运动或向内收回运动时,通过第一磁性组件40和第二磁性组件50的磁吸配合,可以使得柔性显示屏90能够平整的贴附在支撑组件60上,推动柔性显示屏90运动的推力大于磁吸的剪切力,这样柔性显示屏90运就能平整的贴附在支撑组件60上,从而解决起拱或虚位问题。
在一些可选的实施方式中,所述第一支撑板61包括第一主体部611和设置于所述第一主体部611的侧部的多个第一导向部,所述第一导向部沿第一方向X延伸设置,所述多个第一导向部沿与所述第一方向X垂直的第二方向Y间隔设置。所述第二支撑板62包括第二主体部621和与所述第一导向部滑动配合的多个第二导向部,所述多个第二导向部设置于所述第二主体部621的侧部,所述第二导向部沿所述第一方向X延伸设置,所述多个第二导向部沿所述第二方向Y间隔设置。
可选地,所述第一导向部包括相互适配的导槽612和导轨条622中的一者,所述第二导向部包括相互适配的导槽612和导轨条622中的另一者。在本实施例中,第一导向部包括导槽612,第二导向部包括导轨条622。可以理解的,支撑组件60的第一支撑板61和第二支撑板62采用相序间隔支撑的方式,类似梳头的梳子或是梳齿结构,第二支撑板62相对第一支撑板61滑动时,尽量把两个支撑位置的间距缩小,可以使支撑柔性显示屏90的效果会更好。
参见图6、图8A和图8B所示,在一些可选的实施方式中,所述第二磁性组件50包括至少一个磁吸件51,所述第二主体部621和所述第二导向部中的至少一者设有凹槽部52,所述磁吸件51设于所述凹槽部52内,可以使磁吸件51的安装更加牢固。可选地,磁吸件51可以通过点胶固定的方式固定在凹槽部52内,加强与凹槽部52之间的连接强度。进一步地,磁吸件51可以采用磁铁,正反面为N/S极。磁铁可以分段设计,磁铁可以是全部是N极朝向柔性显示屏90,或者全部是S极朝向柔性显示屏90,或者一部分磁铁是N极朝向柔性显示屏90,另一部分磁铁是S极朝向柔性显示屏90。磁铁也可以是N/S极交错设置朝向柔性显示屏90。例如第一个磁铁的N极朝向柔性显示屏90,第二个磁铁的S极朝向柔性显示屏90,第三个磁铁的N极朝向柔性显示屏90,依次类推。这样组合在一起,磁吸力会有比较大的提升。
在一些可选的实施方式中,所述第二主体部621设有第一凹槽部(未图示),所述第一凹槽部沿所述第一方向X延伸设置。所述第二导向部设 有第二凹槽部(未图示),所述第二凹槽部沿所述第二方向Y延伸设置。可以理解的,可以单独在第一凹槽部内可以设置磁吸件51。或者,可以单独在第二凹槽部内也可以设置磁吸件51。或者,可以在第一凹槽部内和第二凹槽部内均设置磁吸件51。在本实施例中,第一凹槽部内和第二凹槽部内均设置磁吸件51。当然,磁吸件51的设置方式可根据实际情况调整,本公开对此不作限制。
在一些可选的实施方式中,所述磁吸件51为多个。(1)所述第二主体部621可以单独设有沿所述第二方向Y间隔设置的至少两个所述第一凹槽部,第一凹槽部内设置磁吸件51。或,(2)至少一个所述第二导向部可以单独设有沿所述第一方向X间隔设置的至少两个所述第二凹槽部,第二凹槽部内设置磁吸件51。或,(3)所述第二主体部621设有沿所述第二方向Y间隔设置的至少两个所述第一凹槽部,并且至少一个所述第二导向部设有沿所述第一方向X间隔设置的至少两个所述第二凹槽部,第一凹槽部和第二凹槽部内均设置磁吸件51。在本实施例中,磁吸件51采用上述(3)的设置方式。当然,磁吸件51的设置方式可根据实际情况调整,本公开对此不作限制。
参见图9至图13所示,在一些可选的实施方式中,滑轨机构包括支架11和滑轨组件20,滑轨组件20包括固定座21、用于连接伸缩屏结构的柔性显示屏90的滑动件22、以及弹性组件23。所述固定座21与所述支架11固接,所述滑动件22沿第一方向X滑动(图11中所示为竖直方向)设置于所述固定座21,所述弹性组件23的第一端2301与所述固定座21连接,所述弹性组件23的第二端2302与所述滑动件22连接。所述滑动件22相对所述固定座21沿所述第一方向X滑动时,带动所述弹性组件23的第二端及柔性显示屏90一同移动。弹性组件23在滑动件22的带动下被拉伸或压缩而产生形变,从而对柔性显示屏90产生预拉力。可以理解的,滑动件22沿图11中箭头方向相对固定座21滑动,拉伸弹性组件23使弹性组件23产生反向拉力。
通过上述设置,滑动件22相对固定座21沿第一方向X移动,能够带动伸缩屏结构的柔性显示屏90一同移动,从而实现柔性显示屏90的展开与收回。滑动件22带动弹性组件23一同移动,对弹性组件23起到拉伸作用,能够对柔性显示屏90产生预拉力,使柔性显示屏90展开时更加平整,防止视觉上造成整机滑开是屏幕鼓包,鼓胀及扭曲等问题。
在一些可能的实施方式中,所述滑轨组件20还包括至少一个导轨24,所述导轨24设于所述固定座21并沿所述第一方向X延伸设置,所述滑动件22设有与导轨24对应的滑槽220,滑动件22通过滑槽220滑动设置于所述导轨24。在本实施例中,导轨24的数量为四组,对称设置于固定座21,使滑动件22滑动时更加稳固。在其他例子中,导轨24也可以是其他数量,本公开对此不作限制。
在一些可能的实施方式中,所述滑轨组件20还包括至少一个限位挡块25,设于所述固定座21远离所述支架11的一端(图11中所述为上端), 所述滑动件22设有与所述限位挡块25抵接配合的限位部221。限位挡块25与滑动件22的限位部221抵接配合,可以对滑动件22的起始位置限位,也可以防止滑动件22脱离导轨24。在本实施例中,限位部221可理解为是凹槽,限位挡块25的数量为两个,对称设置于固定座21,限位部221的数量为两个,与限位挡块25对应设置,本公开对此不作限制。在图11所示的例子中,限位挡块25设于固定座21的上端,滑动件22的起始位置位于固定座21的上端,弹性组件23在此状态下,对滑动件22施加有弹性预拉力,从而将滑动件22保持在该起始位置。
参见图12至图14所示,在一些可能的实施方式中,所述导轨24的至少一个侧部设有卡接部241,所述滑动件22设有与所述卡接部241卡接配合的第一卡扣部222。滑动件22通过第一卡扣部222与导轨24的卡接部241卡接配合,能够与导轨24连接的更牢固,使滑动件22沿导轨24滑动时更加稳固。可以理解的,卡接部241可以是由钣金件加工形成的倒勾结构,防止滑动件22脱离导轨24运动。在本实施例中,导轨24的两侧均设有所述卡接部241,本公开对此不作限制。
参见图15所示,在一些可能的实施方式中,所述滑动件22的侧部设有与所述固定座21的侧边卡接配合的第二卡扣部223。滑动件22通过第二卡扣部223与固定座21的侧边卡接配合,使滑动件22与固定座21之间的连接更稳固,防止滑动件22滑动时脱离固定座21,提高滑动件22滑动时的稳定性。进一步地,所述滑轨组件20还包括塑胶卡扣224,包覆并卡扣于所述固定座21的侧边,所述第二卡扣部223卡接于所述塑胶卡扣224。塑胶卡扣224可以减少第二卡扣部223与固定座21的侧边之间的摩擦力,减少磨损保证滑动顺畅。在本实施例中,塑胶卡扣224可以采用POM(Polyoxymethylene,聚甲醛树脂)塑胶,是一种自润滑的塑胶。滑动件22与塑胶卡扣224可以通过共模注塑工艺(insert-molding)结合在一起作为一个零件,塑胶卡扣224与固定座21的侧边之间的设计间隙为0.05,保证滑动件22只能沿导轨24的延伸方向也即第一方向X滑动,提高结构稳固性。
参见图16所示,在一些可能的实施方式中,所述固定座21设有沿所述第一方向X延伸的台阶部211,所述滑动件22设有与所述台阶部211抵接配合的抵接块225,通过抵接块225与台阶部211配合,可以进一步防止滑动件22滑动时脱离固定座21。
参见图17所示,在一些可能的实施方式中,所述弹性组件23包括第一杆件231、第二杆件232以及弹性件233,所述第一杆件231和所述第二杆件232相互插接并能够相互滑动,所述弹性件233连接于所述第一杆件231和所述第二杆件232之间。所述第一杆件231与所述固定座21连接,所述第二杆件232与所述滑动件22连接。弹性件233可以是弹簧、拉簧等,组装时有预拉力,可以将滑动件22保持在起始位置。当第一杆件231、第二杆件232拉开时候弹簧开始工作。当所述滑动件22相对所述固定座21滑动时,带动所述第二杆件232相对所述第一杆件231滑动,从而配合所 述第一杆件231拉伸或压缩所述弹性件233,使弹性件233发生形变从而对滑动件22产生弹性力。
进一步地,第一杆件231和第二杆件232均设有滑槽,两者相互插接并能相对滑动。第一杆件231的第一端(图17中所示为下端)通过铆钉与固定座21固定,第二杆件232的第一端(图17中所示为上端)通过铆钉与滑动件22固定,第一杆件231的第二端向外凸出形成有第一凸块234,第二杆件232的第二端向外凸出形成有第二凸块235,弹性件233的数量为多组,均匀布设于第一凸块234和第二凸块235之间,能够提供足够的弹性力。当所述滑动件22相对所述固定座21滑动时,带动所述第二杆件232相对所述第一杆件231滑动,从而配合所述第一杆件231拉伸弹性件233,使弹性件233发生形变从而对滑动件22产生反向拉力,保证柔性显示屏处于“拉紧”的状态。
在一些可能的实施方式中,所述弹性组件23的数量为多个,包括第一弹性组件23A、第二弹性组件23B以及第三弹性组件23C,所述第二弹性组件23B和所述第三弹性组件23C对称设置于所述第一弹性组件23A的两侧。所述第一弹性组件23A的弹性件233沿所述第一方向X延伸设置,所述第二弹性组件23B和所述第三弹性组件23C的弹性件233沿所述第一方向X对称设置,且相对所述第一方向X倾斜设置。
由于空间有限,单个导轨很难有这么大弹性行程。通过上述设置,三组弹性组件可以形成接力形式,提高弹性组件的滑动行程,其中所述第二弹性组件23B和所述第三弹性组件23C为相同设计,对称布局在第一弹性组件23A的两侧,第一弹性组件23A的弹性件的初始压缩量可以略大于第二弹性组件23B和第三弹性组件23C的弹性件的初始压缩量,从而提高更大的滑动行程。假设总设计滑动行程为30.00mm,第一弹性组件23A可以从滑动件22滑动19mm开始工作。
在一些可能的实施方式中,滑轨组件20整体可以通过铆接固定在支架11上。支架11的一端可以包括连接板111,固定座21可以采用冲压金属板,通过铆接工艺固定在连接板111上。柔性显示屏90固定在滑轨组件20的滑动件22上。支架11可以采用铝合金材质,提高结构强度。滑动件22可以采用SUS不锈钢板及POM塑料塑胶共模注塑工艺加工而成。不锈钢板可作为主体起到强度支撑作用,滑槽可通过POM塑料塑胶注塑形成,可以与固定座21及导轨24相互滑动,减少摩擦力。限位挡块25可采用塑胶材质,可以对滑动件22的起始位置限位,也可以防止滑动件22脱离导轨24。导轨24可采用不锈钢冲压工艺加工形成,通过点焊固定在固定座21上。与滑动件22上的滑槽220相互配合,形成倒勾结构,防止滑动件22滑动时脱离导轨24运动。滑动件22的外露表面可以作为粘胶区域226与柔性显示屏90粘贴固定。
参见图9和图18所示,本公开实施例提供一种伸缩屏结构,包括如上实施例所述的滑轨机构和柔性显示屏90。转轴组件12设于所述支架11远离所述滑轨组件20的一侧,所述转轴组件12的轴向与所述第一方向X相 垂直。所述柔性显示屏90的第一端与所述滑动件22连接,所述柔性显示屏90的第二端绕设于所述转轴组件12。
其中,所述转轴组件12包括转轴支座、转轴122以及转轮,所述转轴支座连接于所述支架11远离滑轨组件20的一侧,所述转轴支座设有轴孔,轴孔的周向与所述第一方向X垂直。所述转轴122穿设于所述轴孔,所述转轮套设于所述转轴122。所述柔性显示屏90绕设于所述转轮,所述柔性显示屏90展开或收回时,带动所述转轮转动。可以理解的,柔性显示屏90的第一端901与滑轨组件20的滑动件22连接,柔性显示屏90的第二端902绕设于所述转轮。在本实施例中,柔性显示屏90由柔性OLED屏幕与一层极薄的不锈钢网贴合而成,具有很大挠性。
通过上述设置,柔性显示屏90绕设于转轴组件12的转轮,柔性显示屏90展开或收回时,带动转轮转动,也即转轮被动转动,转轮可以起到滑轮的作用,使柔性显示屏90展开和收回更顺畅,有效的降低了柔性显示屏90展开或收回过程的摩擦力及能量损耗,使柔性显示屏90能够更顺滑地展开或收回。
在一些可能的实施方式中,所述转轴122与所述轴孔固定连接,所述转轮与所述转轴122转动连接。可以理解的,转轴122与转轴支座固定连接,转轮相对转轴122可转动,转轴相对转轴支座不转动。柔性显示屏90展开或收回时,只带动转轮转动。
参见图9和图19所示,在一些可能的实施方式中,所述转轴支座包括多个子支座121,沿与第一方向X垂直的方向间隔设置于所述支架11,所述子支座121设有子轴孔,所述多个子支座121的子轴孔同轴设置以形成所述轴孔,所述转轴122穿设于多个所述子轴孔,从而与多个子支座121固定连接。所述转轮包括多个子转轮123,相邻两个所述子支座121之间设有一个所述子转轮123。可以理解的,将转轴支座设置为多个子支座121,转轮设置为多个子转轮123,子支座121和子转轮123交替设置,在保证转轮的转动性能的同时,可以增强转轴支座的强度,提高整体结构强度。可以理解的,转轴支座的各子支座121均于支架11固定连接,也可以是与支架11一体成型加工。需要说明的是,各子支座121的大小可以不同,例如可以分为小支座和大支座,将位于两侧的子支座采用小支座,位于中间的子支座采用大支座。各子转轮123的大小也可以不同,例如分为大转轮和小转轮,可以根据实际需要设置,本公开对此不作限制。
在一些可能的实施方式中,转轴组件12还包括套接于所述转轴122的多个第一轴承124,所述子转轮123的两侧分别设有一个所述第一轴承124。所述第一轴承124包括轴承内圈和与所述轴承内圈转动连接的轴承外圈,所述轴承内圈与所述转轴122连接,所述轴承外圈与所述子转轮123连接。可以理解的,子转轮123通过第一轴承124相对转轴122转动,第一轴承124可以降低子转轮123旋转造成的摩擦损耗,轴承内圈与转轴122在径向可以是零配设计,以保证轴承内圈不会随子转轮123转动而转动。子转轮123与转轴122在径向可以是避让设计,以保证子转轮123与转轴 122之间具有间隙以实现转动。
参见图20所示,为了防止轴承内圈随子转轮123转动而转动,也即为了保证轴承内圈不与转轴122相对旋转,所述转轴组件12还包括套接于所述转轴122的多个轴承垫片125,每个所述第一轴承124的侧部均设有一个所述轴承垫片125。所述轴承垫片125的一端抵接于所述轴承内圈,所述轴承垫片125的另一端抵接于相邻的所述子支座121,如此,可以将轴承内圈与相邻的子支座121相互压紧,防止轴承内圈随子转轮123转动而转动,保证了轴承内圈不与转轴122相对旋转。如此,子转轮123的转动完全靠轴承外圈转动,摩擦损耗较低。
可选地,在一些可能的实施方式中,所述轴承垫片125由铜材或者不锈钢金属制作,截面呈类似碗状结构,具有厚度方向可轻微压缩的力学性能,所述碗状结构的底端抵接于所述轴承内圈,所述碗状结构的碗口端抵接于相邻的所述子支座121,从而将轴承内圈与相邻的子支座121相互压紧。
在一些可能的实施方式中,所述转轴组件12还包括两组第一紧固件126,所述转轴122的一端通过其中一组所述第一紧固件126与所述转轴支座固定连接,另一端通过另一组所述第一紧固件126与所述转轴支座固定连接。可以理解的,第一紧固件126穿过位于最外侧的子支座121与转轴122的端部固定连接,从而将转轴122与转轴支座固定。可选地,所述第一紧固件126与所述转轴支座之间还设有衬垫127。第一紧固件126可采用子母螺丝,第一紧固件126与位于最外侧的子支座121之间设置衬垫127,可以使转轴122与转轴支座之间连接的更牢固。进一步地,子支座121与轴承内圈之间的间隙可设置为零配或者轻微干涉(取决于材料及零件尺寸),这样通过两端的子母螺丝的锁紧力,使得轴承垫片125与轴承内圈存在一个压力,此压力可以保证轴承内圈不会相对转轴122转动。
在本实施例中,子转轮123可采用工程塑胶POM注塑成型,中间通孔,两头有槽可以放置第一轴承124,套设于转轴122,组装后通过第一轴承124可以在转轴122上被动转动。转轴122可采用D形轴,截面为D字型主要作用是固定轴承内圈,防止轴承内圈相对转轴转动。转轴122可采用不锈钢材质,穿设于多个子支座121。转轴122两端可设有螺牙1220,用于与第一紧固件126紧固连接,也便于固定在电子设备的中框上,从而将转轴固定。第一紧固件126可采用金属材质,例如子母螺丝,穿过衬垫127锁固在转轴122上,将转轴122与转轴支座锁紧。第一轴承124材质可采用不锈钢或者陶瓷,装配在子转轮123上,每个转轮123的两端分别装配一个第一轴承124,并装配轴承垫片125。轴承垫片125可采用金属材质。安装子转轮到转轴上时,每个转轮的两侧都放置一个轴承垫片,将转轴穿过轴承垫片的内孔,当转轴两端通过子母螺丝锁紧后,衬垫起到固定轴承内圈,防止轴承内圈跟随轴承外圈一起转动,并且具有将第一轴承与支架接地的作用。
参见图9和图21所示,在一些可能的实施方式中,所述转轴122与所 述轴孔转动连接,所述转轮与所述转轴122固定连接。可以理解的,转轴122与转轮固定连接,转轮相对转轴122不转动,转轴122相对转轴支座可转动,柔性显示屏90展开或收回时,带动转轮及转轴122一同转动。
在一些可能的实施方式中,所述转轴支座包括多个子支座121,沿与第一方向X垂直的方向间隔设置于所述支架11,所述子支座121设有子轴孔,所述多个子支座121的子轴孔同轴设置以形成所述轴孔,所述转轴122穿设于多个所述子轴孔,从而与多个子支座121固定连接。所述转轮包括多个子转轮123,相邻两个所述子支座121之间设有一个所述子转轮123。可以理解的,将转轴支座设置为多个子支座121,转轮设置为多个子转轮123,子支座121和子转轮123交替设置,在保证转轮的转动性能的同时,可以增强转轴支座的强度,提高整体结构强度。可以理解的,转轴支座的各子支座121均于支架11固定连接,也可以是与支架11一体成型加工。需要说明的是,各子支座121的大小可以不同,例如可以分为小支座和大支座,将位于两侧的子支座采用小支座,位于中间的子支座采用大支座。各子转轮123的大小也可以不同,例如分为大转轮和小转轮,可以根据实际需要设置,本公开对此不作限制。
在一些可能的实施方式中,所述转轴组件12还包括两个第二轴承128,分别套接于所述转轴122的两端,所述转轴122的端部通过所述第二轴承128与所述转轴支座转动连接。所述第二轴承128包括轴承内圈和与所述轴承内圈转动连接的轴承外圈,所述轴承内圈与所述转轴支座连接,所述轴承外圈与所述转轴122连接。可以理解的,转轴122通过第二轴承128相对转轴支座的子支座121转动,第二轴承128可以降低转轴122旋转造成的摩擦损耗。子转轮123与转轴122在径向可以是零配设计,以保证子转轮123随转轴122转动而转动。转轴支座的子支座121与转轴122在径向可以是避让设计,以保证子转轮123与转轴122之间具有间隙以实现转动。本实施例中,只需设置两个第二轴承128即可实现转轴122相对转轴支座转动,减少了轴承的数量,简化了模型设计。
在一些可能的实施方式中,所述转轴组件12还包括两个轴盖130,其中一个所述轴盖130自所述轴孔的一端处抵接于相邻的所述转轴122内圈,另一个所述轴盖130自所述轴孔的另一端处抵接于相邻的所述转轴122内圈,通过轴盖130压紧轴承内圈,可以在轴向对转轴122起到限位作用,防止转轴122沿轴向发生位移。
在一些可能的实施方式中,所述转轴组件12还包括多个第二紧固件129,所述第二紧固件129穿过所述子转轮123与所述转轴122固定连接。可以理解的,一个子转轮123可以通过一个第二紧固件129与转轴122固定连接,也可以通过多个第二紧固件129与转轴122固定连接,本公开对此不作限制。
参见图25至图28所示,本公开实施例提供一种电子设备,可以是手机、移动终端、平板电脑、笔记本电脑、带屏幕的终端手持设备、车载显示设备等。电子设备包括壳体、如上实施例所述的伸缩屏结构、以及驱动 机构99。
壳体包括第一壳体91和沿所述第一方向X滑动设置于所述第一壳体91的第二壳体92,所述第一壳体91与所述第二壳体92围合形成一具有开口的收容结构991。伸缩屏结构设置于所述收容结构991内,所述转轴组件12位于靠近所述第二壳体92的一侧,所述柔性显示屏90的第一端901位于靠近所述壳体底部的一侧,所述柔性显示屏90的第二端902与所述第一壳体91连接以覆盖所述开口。驱动机构99设置于所述收容结构991内,所述驱动机构99与所述滑轨机构连接,用于驱动所述滑轨机构沿所述第一方向X移动。可选地,第一壳体91可以设置支撑板93,柔性显示屏90的第二端连接于支撑板93,支撑板93可以对柔性显示屏90起到支撑保护作用。
驱动机构99,包括架体30以及安装于所述架体30的驱动组件和传动组件。架体30可以设有用于与电子设备的中框连接的安装件302,通过紧固件将安装件302固定在中框上,从而将驱动机构99安装在中框上。可选地,驱动机构99的数量可根据实际需要设置,在图28所示的例子中,驱动机构99的数量为两个,对称设置于所述第一壳体91上,可以更稳定地驱动滑轨机构移动,使滑轨机构两侧受力均匀,移动更稳定。
所述驱动组件包括驱动件31和与所述驱动件31连接的减速箱结构32,所述驱动件31和所述减速箱结构32均安装于所述架体30。可选地,驱动件31可以是驱动马达或驱动电机。
所述传动组件包括第一传动件14和与所述第一传动件14活动连接的第二传动件15,所述第一传动件14安装于所述架体30并与所述减速箱结构32连接,所述第二传动件15用于与伸缩屏结构的柔性显示屏传动连接。
所述驱动件31向所述减速箱结构32输出第一扭矩,所述减速箱结构32将所述第一扭矩转换为第二扭矩并输出至所述第一传动件14以驱动所述第一传动件14转动,所述第二传动件15相对所述第一传动件14移动从而带动所述柔性显示屏移动。其中,所述第一扭矩小于所述第二扭矩。可以理解的,所述驱动机构驱动所述滑轨机构沿所述第一方向X移动,带动所述第二壳体92、所述滑轨组件20、所述柔性显示屏90的第一端以及所述滑动件22相对所述第一壳体91沿所述第一方向X移动,以使所述柔性显示屏90在收回状态和展开状态之间切换。
通过上述设置,驱动机构99通过减速箱结构将驱动件输出的第一扭矩转换为扭矩更大的第二扭矩,再传递给第一传动件使第一传动件转动,从而带动柔性显示屏移动,可以把驱动件的低扭矩转换成高扭矩,驱动第一传动件转动,从而更好地带动柔性显示屏移动。
参见图1至图3所示,在一些可能的实施方式中,转轴组件12设于所述第二壳体92内远离所述第一壳体91的一端。所述转轴组件12包括轨迹部120。所述轨迹部120沿与所述第一方向X垂直的第三方向Z的厚度,沿所述第一方向X自靠近所述第一壳体91的一端向远离所述第一壳体91的一端逐渐减小。所述柔性显示屏90绕设于所述轨迹部120,所述柔性显 示屏90的第一端与所述滑轨机构连接,所述柔性显示屏90的第二端与所述第一壳体91连接并覆盖所述开口。可理解的,柔性显示屏90的折弯部904绕设于轨迹部120。
可以理解的,将轨迹部120沿第三方向Z的厚度,设置为沿第一方向X自靠近第一壳体91的一端向远离第一壳体91的一端逐渐减小,也即轨迹部120沿第三方向Z的厚度,在图1和图2的例子中自左至右逐渐减小,形成一个类似锥形的结构。如此,柔性显示屏90运动时,即使屏幕折弯时存在不同方向的力,在第一磁性组件40和第二磁性组件50的磁吸配合作用下,可以使柔性显示屏90在靠近转轴位组件12的位置能够始终与轨迹部120贴合,从而使柔性显示屏90能够与支撑组件60更好的贴合,能够实现比较平整的显示面,解决屏幕起拱的问题。
在一些可选的实施方式中,所述轨迹部120包括轨迹面,所述柔性显示屏90绕设于所述轨迹面,所述轨迹面远离所述第一壳体91的端面呈弧形面,柔性显示屏90可以沿着该轨迹面折弯运动,使得柔性显示屏90端部的运行轨迹呈椭圆形运动轨迹,可以抵消屏幕因不同方向的力带来的起拱问题。可选地,在本实施例中,所述轨迹面呈椭圆形。当然,在其他例子中,轨迹面也可以呈其他形状,例如轨迹面可以包括第一轨迹面和连接于第一轨迹面两端的第二轨迹面,第一轨迹面可以呈弧形面,可理解为是远离所述第一壳体91的端面。第二轨迹面可以是平面,第二轨迹面的一端与第一轨迹面连接,另一端朝向壳体外部的方向延伸,与第一方向之间形成有夹角,从而使轨迹部120沿第三方向Z的厚度,沿第一方向X自靠近第一壳体91的一端向远离第一壳体91的一端逐渐减小。
在一些可选的实施方式中,所述轨迹部120包括轨迹本体1201和转轮123,所述轨迹本体1201形成有收容腔,所述转轮123活动设置于所述收容腔内。所述柔性显示屏90绕设于所述轨迹本体1201及部分所述转轮123,所述轨迹本体1201的外轮廓面和所述转轮123的部分外轮廓面共同形成所述轨迹面。如此,通过轨迹本体1201和转轮123的外轮廓面配合,共同形成轨迹部120的呈椭圆形的轨迹面,可以解决屏幕移动时折弯处起拱的问题。
在一些可能的实施方式中,驱动组件还可以包括与驱动件31连接的控制电路板312,用于根据指令控制驱动件31。控制电路板312可以是柔性FPC电路板。控制电路板312和电子设备的终端主板导通,当柔性显示屏需要展开时,终端主板把伸开的命令传到控制电路板312上,控制电路板312控制驱动电机转动,驱动电机通过减速箱结构32把驱动电机的扭矩放大,驱动第二传动件15相对第一传动件14线性运行,由第二传动件15带动柔性显示屏向外伸开,这样就完成了柔性显示屏伸开的动作。当柔性显示屏需要缩回时,可以通过点击电子设备的显示屏幕发送缩回的命令给终端主板,终端主板把缩回的命令传到控制电路板312上,控制电路板312控制驱动电机转动(和伸开转动的方向相反),驱动电机通过减速箱结构32把驱动电机的扭矩放大,驱动第二传动件15相对第一传动件14线性运 行,由第二传动件15带动柔性显示屏缩回到初始位置。在本实施例中,控制电路板312通过焊接与驱动电机连接,控制电路板312与终端主板导通,或者通过BTB连接器和主板终端导通,以达到驱动电机通电,通过控制信号控制驱动电机转动。
在一些可能的实施方式中,驱动电机可采用的是直流步进电机,步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机。在非超载的情况下,电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数,而不受负载变化的影响,当步进驱动器接收到一个脉冲信号,它就驱动步进电机按设定的方向转动一个固定的角度,它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量,从而达到准确定位的目的。同时可以通过控制脉冲频率来控制电机转动的速度和加速度,从而达到调速的目的,输入转动的扭力。
所述第一传动件14为丝杠,所述第二传动件15为与所述丝杠螺纹配合的螺母,所述丝杠的两端通过轴承141与所述架体30连接。伸缩屏结构的支架11设有传动件13。所述丝杠沿所述第一方向X延伸设置,所述螺母与所述传动件13相抵接。所述驱动电机驱动所述丝杠转动,带动所述螺母和所述传动件沿所述第一方向X移动,从而带动所述滑轨机构沿所述第一方向X移动。需要说明的是,第一传动件和第二传动件也可以采用齿轮齿条、涡轮蜗杆等结构,本公开对此不作限制。
在一些可能的实施方式中,驱动机构99还包括设置于所述架体30的导向杆33,所述导向杆33与所述丝杠平行设置。所述螺母包括第一套接部151和第二套接部152,所述第一套接部151与所述丝杠螺纹连接,所述第二套接部152套接于所述导向杆33。所述第二传动件15还设有凸块153,用于与伸缩屏结构的支架11的传动件13相抵接。可以理解的,螺母通过第一套接部151与丝杠螺纹连接,当丝杠转动时,螺母相对丝杠线性移动。移动过程中,第二套接部152沿所述导向杆33移动,可以对螺母起到导向作用。
在一些可能的实施方式中,所述驱动件31包括输出轴311,所述减速箱结构32包括第一减速箱和第二减速箱。所述第一减速箱包括第一齿轮321,所述第二减速箱包括第二齿轮322和与所述第二齿轮322配合的第三齿轮323(可理解为是丝杠齿),所述第三齿轮323与所述第一传动件14连接,所述第二齿轮322与所述第一齿轮321配合,所述第一齿轮321与所述输出轴311连接。所述输出轴311向所述第一齿轮321输出第一扭矩,所述第一扭矩经所述第二齿轮322和所述第三齿轮323转换为第二扭矩并输出至所述第一传动件14。通过第一齿轮321、第二齿轮322以及第三齿轮323的齿配合,能够将驱动电机输出的低扭矩转为为高扭矩。
在一些可能的实施方式中,所述减速箱结构32还包括减速箱端盖34,固定连接于所述架体30的一侧。可选地,架体30的侧部设有用于与减速箱端盖34固定连接的侧边框301,减速箱端盖34固定在该侧边框301。减速箱端盖34通过多个紧固件342(例如螺丝)固定在该侧边框301。所述 第一齿轮321和所述第二齿轮322均与所述减速箱端盖34连接,所述第三齿轮323通过所述第一传动件14与所述减速箱端盖34连接,减速箱端盖34起到固定第一齿轮321、第二齿轮322、第三齿轮323以及第一传动件14的作用。
在一些可能的实施方式中,所述第一减速箱包括第一衬套324,固定于所述减速箱端盖34,所述第一齿轮321安装于所述第一衬套324。可选地,减速箱端盖34设有第一通孔341,第一衬套324固定于所述第一通孔341,第一齿轮321为太阳齿,安装于所述第一衬套324。所述第二减速箱包括固定于所述减速箱端盖34的限位柱35,所述第二齿轮322安装于所述限位柱35,限位柱35对第二齿轮322起到限位和固定作用。
在一些可能的实施方式中,所述第一传动件14为丝杠,所述丝杠的端部通过轴承141与所述减速箱端盖34连接,所述第三齿轮323与所述丝杠配合。可选地,减速箱端盖34还设有第二通孔343,该第二通孔343内安装有轴承141,丝杠的一端安装于该轴承141,从而固定在架体30上。
在一些可能的实施方式中,所述第一减速箱还包括:固齿圈36、驱动齿37、行星轮架38以及行星齿轮39。
固齿圈36与所述驱动件31连接,所述输出轴311伸入所述固齿圈36内。
驱动齿37安装于所述固齿圈36内,并与所述输出轴311固定。可选地,第一减速箱还包括第二衬套371,驱动齿37安装在第二衬套371,可以对驱动齿37起到保护及限位作用
行星轮架38安装于所述固齿圈36内,并与所述第一齿轮321配合固定。可选地,第一减速箱还包括第三衬套381,行星轮架38安装于第三衬套381,可以对行星轮架38起到保护及限位作用。
行星齿轮39安装于所述行星轮架38上,并与所述驱动齿37配合;
所述输出轴311向所述驱动齿37输出第一扭矩,所述第一扭矩经所述驱动齿37、所述行星齿轮39、所述行星轮架38减速后传递至第一齿轮321,达到一级减速效果。然后该扭矩再经第一齿轮321减速后传递至第二齿轮322,达到二级减速效果。然后该扭矩再经第二齿轮322减速后转为第二扭矩传递至第三齿轮323,达到三级减速效果。第三齿轮323再将第二扭矩传递至第一传动件14,驱动第一传动件14转动。
通过上述设置,通过驱动齿37、驱动齿37以及行星齿轮39的齿配合,构成了一级减速箱。通过第一齿轮321、第二齿轮322以及第三齿轮323的齿配合,构成了二三级减速箱。行星齿轮39可作为一级减速齿,第一齿轮321可作为第二减速齿,第二齿轮322可作为第三减速齿,第三齿轮323可作为丝杠齿轮。
可以理解的,第一减速箱是驱动机构的核心部件,一端和驱动电机安装焊接在一起,另一端通过焊接和架体30焊接固定在一起。第一减速箱包括驱动电机的输出轴311、驱动齿37、第二衬套371、行星齿轮39、行星轮架38、第三衬套381、固齿圈36、以及第一齿轮321。所有零部件均采 用齿轮配合固定,并且输出轴311、驱动齿37、第二衬套371、行星齿轮39、行星轮架38、第三衬套381以及第一齿轮321均固定配合在固齿圈内,驱动齿37和驱动电机的输出轴311固定,行星轮架38和第一齿轮321配合固定第一齿轮321另外一端固定在第一衬套324,通过第一衬套324固定在减速箱端盖34。第二齿轮322通过限位柱35固定在架体30和减速箱端盖34上。第三齿轮323固定在第一传动件14上,第一传动件14一端通过轴承141固定在架体30上,另外一端也通过轴承141固定在减速箱端盖34上。减速箱端盖34通过紧固件342固定在架体30上,第一齿轮321、第二齿轮322以及第三齿轮323三个齿轮通过齿配合,构成了二三级减速箱。驱动电机输出的扭矩通过第一减速箱和第二减速箱减速,输出一个大于输出扭矩数倍或几十倍的扭矩给到丝杠,带动丝杠转动。丝杠带动螺母运动。减速箱结构的主要作用是把驱动电机输出的低扭矩转换成高扭矩。
在一些可选地实施方式中,架体30可采用MIM(粉末冶金)制造,孔径及部分尺寸需要采用车床或CNC加工中心加工。架体30的主要作用是固定减速箱结构、丝杠、螺母、轴承、导向杆等部件。因此该架体30的精度要求比较高,平面度要求也较高,架体30精度直接影响整个驱动机构的稳定性。整个架体30可以固定在电子设备的中框的第一壳体91上
螺母可采用MIM(粉末冶金)和塑料双色注塑,塑料采用工程塑料(常用POM料),该料有自润滑作用,螺母一侧固定在导向杆上,一端固定在丝杠上,固定在丝杠端需要设计丝杠导槽,便于驱动螺母线性运动。该螺母根据推出组件的结构需求,设计出骨位和侧滑动件连接固定,推动滑动件活动。导向杆可采用不锈钢材质,对表面粗糙度要求比较高,对螺母起导向固定作用。丝杠一般采用强度较高的工具钢材,通过车床或加工中心多次加工制造。丝杠两端固定轴承,一端固定在架体,另一端固定在减速箱端盖上,驱动电机通过减速箱结构带动丝杠转动,丝杠带动螺母线性运动。因此丝杠的强度和精度,直接影响螺母推动滑动件的稳定性和顺畅性。
再次参见图22至图24所示,由于弹性组件的弹性件预紧的原因,滑动件22在起始位置受到弹性组件的预紧力,并由于限位挡块25的存在,保持静止状态处于起始位置,柔性显示屏90处于收回状态。
驱动机构作为动力源固定在整机中框(也即壳体)上,电子设备通过UI接收到指令后,控制驱动机构驱动滑轨机构沿第一方向X移动(图23中所示为向左移动),使滑轨机构整体相对第一壳体91沿原理第一壳体91的方向滑出。此过程中,柔性显示屏90的第一端连同滑动件22一起滑动,转轴组件的转轮受到柔性显示屏90的力而被动转动,由于柔性显示屏90的第二端与第一壳体91连接,因此随着滑轨机构的逐渐滑出,可以实现柔性显示屏90逐渐展开的效果,如图23所示。滑轨机构滑动过程中,滑动件22在柔性显示屏的拉动下能够从固定座21的一端移动到另一端,可以进一步加长柔性显示屏90的展开长度。并且,滑动过程中,弹性组件被滑动件22拉伸对滑动件22产生与滑动方向反向的弹性拉力,柔性显示屏90始终受到该反方向的拉力,相当于把柔性显示屏90向右拉,使伸开的柔性 显示屏90更加平整,保证了柔性显示屏90弯曲的轨迹按照设计意图运动,防止视觉上造成整机滑开是屏幕鼓包,鼓胀及扭曲等问题。
可以理解的,整个过程中,滑动件22受到柔性显示屏90的第二端的拉动,能够从固定座21的一端移动到另一端。假设滑轨机构相对第一壳体91滑出的行程为S,滑动件22滑动的行程为S,则柔性显示屏90的第一端随着滑轨机构相对第一壳体91运动了2S距离。
当整机接收到外部指令回缩时候。驱动电机开始反向驱动,将滑轨机构及柔性显示屏回缩收回。这个过程中,支架及固定座由在驱动机构的驱动下反向移动,柔性显示屏及滑动件在弹性组件的弹性力作用下逐渐收回,滑动件则在弹性组件的弹性作用力下回到起始位置,从而将柔性显示屏恢复到收回状态。因此,采用本公开的滑轨机构,能够平稳有效的保证柔性显示屏在整机滑开与回缩过程中保持外观的弯曲形态,并且保证屏幕滑开和回缩过程产生的摩擦力导致的功率损耗处于较低的水平,具有可操作性和容易实现的方案,确保产品可靠性。
参见图29至图33所示,在一些可选的实施方式中,壳体包括第一壳体91和沿第一方向X滑动设置于所述第一壳体91的第二壳体92,所述第一壳体91与所述第二壳体92围合形成一具有开口的收容结构991。第一壳体91设有沿所述第一方向X设置的第一滑动部911。柔性显示屏90的第一端901位于靠近所述壳体底部的一侧,所述柔性显示屏90的第二端902与所述第一壳体91连接以覆盖所述开口。在本实施例中,所述开口位于壳体的顶部。可选地,第一壳体91和第二壳体92的外侧可以设置装饰件94,起到保护和装饰作用。
滑轨机构包括与所述柔性显示屏90的第一端901连接的支架11,所述支架11设有与所述第一滑动部911相适配的第二滑动部912。其中,所述第一滑动部911为滑动轨道和滑动槽中的一者,所述第二滑动部912为滑动轨道和滑动槽中的另一者。所述滑动轨道沿所述滑动槽移动,以使所述滑轨机构带动所述柔性显示屏90相对所述第一壳体91沿所述第一方向X滑移动,实现柔性显示屏的展开与收回。可选地,第一滑动部911与中框壳体的第一壳体一体成型设置,便于生产加工。在图29至图31所示的例子中,所述第一滑动部911为滑动槽,所述第二滑动部912为滑动轨道。所述第一壳体91沿与所述第一方向X(如图29中X方向所示)垂直的第二方向(如图29中Y方向所示)的两侧均设有所述第一滑动部911。所述支架11沿所述第二方向的两侧均设有所述第二滑动部912,通过设置两组第一滑动部911和第二滑动部912,可以使滑轨机构相对第一壳体91移动时更稳定,提高整机的稳定性。
参见图34所示,在一些可选的实施方式中,所述子支座121包括第一抱箍座1211和与所述第一抱箍座1211拼接的第二抱箍座1212,所述第一抱箍座1211和所述第二抱箍座1212抱箍于所述转轴122的两侧并相互连接,第一抱箍座1211和第二抱箍座1212中的任意一者与支架11固接,图中所示例子中,第二抱箍座1212与支架11固接。子支座121采用第一抱 箍座1211和第二抱箍座1212相互拼接的可拆分的结构形式,便于拆卸及安装。
参见图35至图43所示,本公开的电子设备还可以包括主控板59和支撑组件60,主控板59可以与驱动机构99及柔性显示屏90连接,作为整机的总控制端,用于控制驱动机构99及其他部件。电池、主控板59、前摄像头、后摄像头97、听筒98、驱动电机、驱动电路板等堆叠功能器件装配到中框组件的第一壳体91上。第一壳体91可以单独作为中框壳体,第一壳体91和第二壳体92的外侧均可以设置装饰件94,起到保护和装饰作用。
支撑组件60包括支撑于所述柔性显示屏90下方的第一支撑板61和与所述第一支撑板61滑动连接的第二支撑板62,所述第一支撑板61与所述第一壳体91连接,所述第二支撑板62与所述滑轨机构连接。可选地,第二支撑板62与滑轨组件20连接。可选地,第一支撑板61可以通过粘胶或点胶或螺钉连接的方式固定在第一壳体91上,第二支撑板62可以通过粘胶或点胶或螺钉连接的方式固定在滑轨机构的滑轨组件20上。柔性显示屏90的第一端可以通过粘胶或点胶方式固定在第一支撑板上,起到更好的固定效果。
所述滑轨机构沿所述第一方向X相对所述第一壳体91移动,带动所述第二壳体92、所述柔性显示屏90的第一端以及所述第二支撑板62相对所述第一壳体91移动,以使所述柔性显示屏90在展开状态和收回状态之间切换。展开过程中,所述第二支撑板62相对所述第一支撑板61滑动,以支撑所述柔性显示屏90相对所述第一壳体91展开的部分。
通过上述设置,通过支撑组件60支撑柔性显示屏90,滑轨机构移动带动柔性显示屏90移动,以实现柔性显示屏90的展开与收回。展开过程中,滑轨机构移动带动第二支撑板62相对第一支撑板61滑动,以支撑柔性显示屏90相对第一壳体91展开的部分,对柔性显示屏90起到全面的支撑作用,从而确保产品在展开状态下使用柔性显示屏90不下陷。
参见图44所示,在一些可能的实施方式中,所述第一支撑板61包括第一主体部611和设置于所述第一主体部611的侧部的多个导槽612,所述第一主体部611与所述第一壳体91连接,所述多个导槽612沿与所述第一方向X垂直的第二方向间隔设置,所述导槽612沿所述第一方向X延伸设置。所述第二支撑板62包括第二主体部621和设置于所述第二主体部621的侧部的多个导轨条622,所述第二主体部621与所述滑轨机构连接,所述多个导轨条622沿与所述第二方向间隔设置,所述导轨条622的数量与所述导槽612相同,所述导轨条622一一对应地滑动设置于所述导槽612内。需要说明的是,在其他例子中,导槽和导轨条的位置可以互换,也即第一主体部611的侧部设置多个导轨条,第二主体部621的侧部设置多个导槽,所述导轨条仍然一一对应地滑动设置于所述导槽内,同样可以实现第二支撑板62相对所述第一支撑板61滑动设置的功能。
可以理解的,支撑组件60的第一支撑板61和第二支撑板62采用相序 间隔支撑的方式,类似梳头的梳子或是梳齿结构,第二支撑板62相对第一支撑板61滑动时,尽量把两个支撑位置的间距缩小,可以使支撑柔性显示屏90的效果会更好。
参见图45所示,在一些可能的实施方式中,所述导槽612的开口的两侧均设有限位片63,所述限位片63部分凸出于所述导槽612的侧壁。所述导轨条622包括第一部分6221和与所述第一部分6221连接的第二部分6222,所述第一部分6221的表面与两个所述限位片63齐平。所述第二部分6222滑动设置于所述导槽612,且所述第二部分6222的两端分别位于所述导槽612的底壁和所述限位片63的凸出部分之间。可选地,限位片63可通过电焊的方式固定在导槽612的开口处。限位片63部分凸出于导槽612的侧壁,可以将导轨条622限位在导槽612内,防止导轨条622脱离导槽612,提高支撑组件整体的稳定性。
可选地,所述导槽612和两个所述限位片63围合形成阶梯型槽。所述导轨条622呈与所述阶梯型槽相适配的阶梯型结构,采用阶梯型的配合结构,导轨条622可以更好地在导槽612内滑动,不会脱离导槽612。
参见图46所示,在一些可选的实施方式中,本公开的电子设备还可以包括控制机构,控制机构包括位移传感器和与所述位移传感器电连接的控制器,所述位移传感器用于测量所述滑轨机构相对所述第一壳体91的位移变化量。所述控制器设于所述第一壳体91,用于根据所述位移变化量控制所述驱动机构99驱动所述滑轨机构沿所述第一方向X移动的第一行程量。所述驱动机构99驱动所述滑轨机构沿所述第一方向X移动,带动所述支架11、第二壳体92、所述柔性显示屏90的第一端901相对所述第一壳体91沿所述第一方向X移动,以使所述柔性显示屏90在收回状态和展开状态之间切换。可以理解的,位移传感器用于测量所述滑轨机构的支架11相对所述第一壳体91的位移变化量,驱动机构99驱动所述滑轨机构的支架11沿所述第一方向X移动,带动所述支架11、第二壳体92、所述柔性显示屏90的第一端901相对所述第一壳体91沿所述第一方向X移动。在本实施中,所述驱动机构99的数量为两个,对称设置于所述第一壳体91上。通过两组驱动机构的螺母推动支架相对第一壳体向外运动或回缩运动,采用双驱动机构,确保推出力的平衡。
通过上述设置,通过位移传感器测量所述滑轨机构相对所述第一壳体91的位移变化量,控制器根据该位移变化量可以确定滑轨机构需要沿第一方向X移动的第一行程量,并向驱动机构输出控制信号,驱动机构根据该控制信号驱动滑轨机构沿第一方向X移动,带动柔性显示屏90移动,从而达到精准控制柔性显示屏90的移动行程的目的。
在一些可能的实施方式中,所述位移传感器包括霍尔磁铁71和与所述控制器电连接的多个霍尔传感器72,所述霍尔磁铁71设于所述滑轨机构和所述第一壳体91中的一者,所述多个霍尔传感器72设于所述滑轨机构和所述第一壳体91中的另一者。在图46所示的例子中,霍尔磁铁71设置于滑轨机构上,多个霍尔传感器72设置于第一壳体91。所述滑轨机构相 对所述第一壳体91移动,所述多个霍尔传感器72通过感应所述霍尔磁铁71的磁场变化以获得所述滑轨机构相对所述第一壳体91的位移变化量。可选地,霍尔磁铁71设置于滑轨机构的支架11上。
可以理解的,霍尔传感器72可以是霍尔芯片,控制器的控制原理是采用霍尔芯片与霍尔磁铁配合,把霍尔磁铁固定在运动的滑轨机构的支架11上,霍尔磁铁产生磁场变化,霍尔芯片在感应不同强度的磁场,产生电信号变化发送给控制器,控制器根据该电信号变化确定滑轨机构的支架相对所述第一壳体的位移变化量,也即滑轨机构的支架相对第一壳体已移动的行程量,再计算出滑轨机构的支架相对第一壳体还需要移动的第一行程量,从而控制驱动机构驱动支架移动该第一行程量,从而达到精准控制柔性显示屏的移动行程的目的。
参见图46至图49所示,在一些可能的实施方式中,所述霍尔磁铁71设置于所述滑轨机构,所述多个霍尔传感器72沿所述第一方向X间隔设置于所述第一壳体91。在本实施例中,霍尔磁铁71设置于滑轨机构的支架11。霍尔传感器72的数量为四个,四个霍尔传感器72的沿所述第一方向X(即图48中箭头方向所示)的间距分别是X1、X2、X3和X4,同时霍尔磁铁71与四个霍尔传感器72之间也分别保持不同的间距,这个间距需要满足霍尔传感器的感应范围。通过设置多个霍尔传感器共同感应霍尔磁铁的磁场变化,可以更精准地计算出支架相对第一壳体的位移变化量,从而达到精准控制柔性显示屏的移动行程的目的。
在一些可能的实施方式中,所述位移传感器还包括传感器电路板73,设置于所述第一壳体91,所述多个霍尔传感器72沿所述第一方向X间隔设置于所述传感器电路板73。所述驱动机构包括驱动电路板17,与所述传感器电路板73电连接。所述控制器包括控制电路板,与所述驱动电路板17电连接。可选地,传感器电路板73可以采用FPC柔性电路板,减少占用的空间。控制电路板与传感器电路板73电连接,用于接收传感器电路板73测量的数据。与驱动电路板电连接,用于向驱动电路板发送控制信号。
可以理解的,驱动电路板17固定在中框壳体的第一壳体91上,霍尔芯片可以贴设在传感器电路板73上,传感器电路板73采用连接器和驱动电路板17连接固定,传感器电路板73固定在第一壳体91,也即中框支架上。驱动电路板17通过柔性电路板和控制电路板连接。霍尔磁铁71通过粘胶固定在支架11上,支架11可以设置收容槽74,霍尔磁铁71嵌设在该收容槽74内,保证霍尔磁铁71的稳固性。当驱动机构驱动支架11运动时,霍尔磁铁71也跟着一同运动,与霍尔芯片产生了一个变化的距离。
滑轨机构的支架11与驱动机构的第二传动件15固定连接,当驱动机构驱动支架11滑动时,相对于霍尔芯片产生变化的距离,设置于滑轨机构的支架11的霍尔磁铁也随支架11运动而产生变化的距离,霍尔磁铁的N/S极形成一个闭环磁场,在滑轨机构闭合状态下,霍尔芯片在这个磁场范围内,使霍尔芯片产生一个信号,这个信号能够定位滑轨机构闭合到位的位置信号。当霍尔磁铁随侧支架外移的时候,霍尔磁铁的磁场发生变化,霍 尔芯片通过磁场变化来判断支架被推出的距离,会产生一个电信号并传输给到控制器(可理解为是终端产品CPU),控制器再根据该信号发送控制信号给驱动电路板,驱动所述驱动电机转动或停止,从而控制螺母相对螺杆移动的行程,就控制了支架滑动的行程,从而达到精准控制柔性显示屏的移动行程的目的。
在一些可能的实施方式中,所述控制器还与所述柔性显示屏90电连接,还用于根据所述滑轨机构沿所述第一方向X移动的第一行程量,判断所述柔性显示屏90展开或收回的第二行程量,并根据所述第二行程量控制所述柔性显示屏90的显示尺寸。可以理解的,控制器通过接收和感知霍尔芯片的信号变化,根据所述滑轨机构沿所述第一方向X移动的第一行程量,并根据所述第二行程量控制所述柔性显示屏90的显示尺寸,从而控制柔性显示屏90的显示变化,可以实现屏幕边滑动边显示的功效,并且可以控制任何行程的一个屏幕显示比例,保证屏幕的显示性能。
本领域技术人员在考虑说明书及实践这里公开的申请后,将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (13)

  1. 一种电子设备,其特征在于,包括:
    壳体,包括第一壳体和第二壳体,所述第一壳体与所述第二壳体围合形成具有开口的收容结构;
    滑轨机构,设置于所述收容结构内并与所述第二壳体连接,所述滑轨机构沿第一方向与所述第一壳体滑动连接;
    转轴组件,设于所述第二壳体内远离所述第一壳体的一端,所述转轴组件包括轨迹部;所述轨迹部沿与所述第一方向垂直的第三方向的厚度,沿所述第一方向自靠近所述第一壳体的一端向远离所述第一壳体的一端逐渐减小;
    柔性显示屏,绕设于所述轨迹部,所述柔性显示屏的第一端与所述滑轨机构连接,所述柔性显示屏的第二端与所述第一壳体连接并覆盖所述开口。
  2. 根据权利要求1所述的电子设备,其特征在于,所述轨迹部包括轨迹面,所述柔性显示屏绕设于所述轨迹面,所述轨迹面远离所述第一壳体的端面呈弧形面。
  3. 根据权利要求2所述的电子设备,其特征在于,所述轨迹部包括轨迹本体和转轮,所述轨迹本体形成有收容腔,所述转轮活动设置于所述收容腔内;
    所述柔性显示屏绕设于所述轨迹本体及部分所述转轮,所述轨迹本体的外轮廓面和所述转轮的部分外轮廓面共同形成所述轨迹面。
  4. 根据权利要求2所述的电子设备,其特征在于,所述轨迹面呈椭圆形面。
  5. 根据权利要求1所述的电子设备,其特征在于,还包括伸缩屏结构,所述伸缩屏结构包括所述柔性显示屏和支撑组件;
    其中,所述柔性显示屏设有第一磁性组件;所述支撑组件支撑于所述柔性显示屏下方,所述支撑组件包括第一支撑板和第二支撑板,所述第二支撑板与所述柔性显示屏连接,并与所述第一支撑板滑动连接;所述第一支撑板和所述第二支撑板中的至少一者设有与所述第一磁性组件磁吸配合的第二磁性组件;
    所述伸缩屏结构包括展开状态和收回状态,所述伸缩屏结构在所述展开状态和所述收回状态之间切换时,所述第二支撑板相对于所述第一支撑板沿远离或靠近所述第一支撑板的方向滑动,所述柔性显示屏与所述第二支撑板同步运动,所述第二支撑板用于支撑所述柔性显示屏相对所述第一支撑板展开的部分。
  6. 根据权利要求5所述的电子设备,其特征在于,所述第一磁性组件包括:
    第一金属件,连接于所述柔性显示屏靠近所述支撑组件的一侧;
    第二金属件,连接于所述第一金属件。
  7. 根据权利要求6所述的电子设备,其特征在于,所述柔性显示屏包括本体部和与所述本体部连接的折弯部;所述第一金属件不具有磁性,所述第一金属件连接于所述本体部和所述折弯部靠近所述支撑组件的一侧;所述第二金属件具有磁性,连接于所述第一金属件位于所述折弯部所在区域内的部分。
  8. 根据权利要求6或7所述的电子设备,其特征在于,所述第一金属件包括网格金属片;和/或
    所述第二金属件包括条形金属片。
  9. 根据权利要求6所述的电子设备,其特征在于,所述第一支撑板包括第一主体部和设置于所述第一主体部的侧部的多个第一导向部,所述第一导向部沿第一方向延伸设置,所述多个第一导向部沿与所述第一方向垂直的第二方向间隔设置;
    所述第二支撑板包括第二主体部和与所述第一导向部滑动配合的多个第二导向部,所述多个第二导向部设置于所述第二主体部的侧部,所述第二导向部沿所述第一方向延伸设置,所述多个第二导向部沿所述第二方向间隔设置。
  10. 根据权利要求9所述的电子设备,其特征在于,所述第二磁性组件包括至少一个磁吸件,所述第二主体部和所述第二导向部中的至少一者设有凹槽部,所述磁吸件设于所述凹槽部内。
  11. 根据权利要求10所述的电子设备,其特征在于,所述第二主体部设有第一凹槽部,所述第一凹槽部沿所述第一方向延伸设置;和/或
    至少一个所述第二导向部设有第二凹槽部,所述第二凹槽部沿所述第二方向延伸设置。
  12. 根据权利要求11所述的电子设备,其特征在于,所述磁吸件为多个;
    所述第二主体部设有沿所述第二方向间隔设置的至少两个所述第一凹槽部;或
    至少一个所述第二导向部设有沿所述第一方向间隔设置的至少两个所述第二凹槽部;或
    所述第二主体部设有沿所述第二方向间隔设置的至少两个所述第一凹槽部,至少一个所述第二导向部设有沿所述第一方向间隔设置的至少两个所述第二凹槽部。
  13. 根据权利要求9所述的电子设备,其特征在于,所述第一导向部包括相互适配的导槽和导轨条中的一者,所述第二导向部包括相互适配的导槽和导轨条中的另一者。
PCT/CN2022/095390 2022-05-26 2022-05-26 电子设备 WO2023225969A1 (zh)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
CN111768709A (zh) * 2020-07-15 2020-10-13 京东方科技集团股份有限公司 一种显示装置和电子设备
CN213368329U (zh) * 2020-11-02 2021-06-04 Oppo广东移动通信有限公司 支撑板、壳体组件和电子装置
WO2021167236A1 (ko) * 2020-02-20 2021-08-26 엘지전자 주식회사 이동 단말기
CN113766048A (zh) * 2020-06-05 2021-12-07 Oppo广东移动通信有限公司 电子装置

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Publication number Priority date Publication date Assignee Title
WO2021167236A1 (ko) * 2020-02-20 2021-08-26 엘지전자 주식회사 이동 단말기
CN113766048A (zh) * 2020-06-05 2021-12-07 Oppo广东移动通信有限公司 电子装置
CN111768709A (zh) * 2020-07-15 2020-10-13 京东方科技集团股份有限公司 一种显示装置和电子设备
CN213368329U (zh) * 2020-11-02 2021-06-04 Oppo广东移动通信有限公司 支撑板、壳体组件和电子装置

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