WO2023020053A1 - 转动机构和可折叠终端 - Google Patents

转动机构和可折叠终端 Download PDF

Info

Publication number
WO2023020053A1
WO2023020053A1 PCT/CN2022/093920 CN2022093920W WO2023020053A1 WO 2023020053 A1 WO2023020053 A1 WO 2023020053A1 CN 2022093920 W CN2022093920 W CN 2022093920W WO 2023020053 A1 WO2023020053 A1 WO 2023020053A1
Authority
WO
WIPO (PCT)
Prior art keywords
support plate
fixed base
swing arm
rotating shaft
rotating
Prior art date
Application number
PCT/CN2022/093920
Other languages
English (en)
French (fr)
Other versions
WO2023020053A9 (zh
Inventor
封蕾
魏亚蒙
张伟
袁雷波
Original Assignee
荣耀终端有限公司
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 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to US18/004,000 priority Critical patent/US20240098164A1/en
Priority to EP22826584.9A priority patent/EP4184023A4/en
Publication of WO2023020053A1 publication Critical patent/WO2023020053A1/zh
Publication of WO2023020053A9 publication Critical patent/WO2023020053A9/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0235—Slidable or telescopic telephones, i.e. with a relative translation movement of the body parts; Telephones using a combination of translation and other relative motions of the body parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D1/00—Pinless hinges; Substitutes for hinges
    • E05D1/04—Pinless hinges; Substitutes for hinges with guide members shaped as circular arcs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present application relates to the field of foldable terminals, in particular to a rotating mechanism and a foldable terminal.
  • Foldable terminals are favored by users because of their large screens and easy portability.
  • foldable terminals often use a rotating mechanism to realize folding and unfolding.
  • the existing rotation mechanism is often thick, which is not conducive to realizing the light and thin design of the foldable terminal.
  • the present application provides a rotating mechanism and a foldable terminal.
  • the thickness of the rotating mechanism is relatively small, which is beneficial to reducing the volume of the foldable terminal and realizing the light and thin design of the foldable terminal.
  • the present application provides a rotating mechanism, which includes a fixed base, a first swing arm, a second swing arm, a first limiter and a second limiter.
  • the fixed base is provided with a first chute and a second chute.
  • the openings of the first chute and the second chute are located on the top surface of the fixed base.
  • Both the first chute and the second chute are recessed from the top to the bottom of the fixed base.
  • both the first chute and the second chute are arc-shaped grooves.
  • the first swing arm includes a first rotating shaft part, the first rotating shaft part is installed in the first slide slot, and can rotate relative to the fixed base.
  • the first rotating shaft part is located at one end of the first swing arm.
  • the first rotating shaft part is in the shape of an arc-shaped plate, and fits with the first sliding slot.
  • the first shaft part protrudes away from the top surface of the first swing part.
  • the first rotating shaft part is provided with a first slide hole, and the first sliding hole penetrates the first rotating shaft part along the thickness direction of the first rotating shaft part.
  • the first sliding hole is an arc-shaped hole.
  • the second swing arm includes a second shaft part, and the second shaft part is installed in the second slide slot and can rotate relative to the fixed base.
  • the second rotating shaft part is located at one end of the second swing arm.
  • the second rotating shaft part is in the shape of an arc-shaped plate, and fits with the second chute.
  • the second shaft part protrudes away from the top surface of the second swing part.
  • the second rotating shaft part is provided with a second slide hole, and the second sliding hole penetrates the second rotating shaft part along the thickness direction of the second rotating shaft part.
  • the second sliding hole is an arc-shaped hole.
  • the first shaft part rotates counterclockwise relative to the fixed base
  • the second shaft part rotates clockwise relative to the fixed base.
  • the first swing arm and the second swing arm rotate relative to the fixed base to relatively folded.
  • the first shaft part rotates clockwise relative to the fixed base
  • the second shaft part rotates counterclockwise relative to the fixed base.
  • the first swing arm and the second swing arm rotate relative to the fixed base to expand .
  • the first limiting member passes through the first sliding hole and is fixedly connected to the fixed base.
  • the first limiting member slides relative to the first rotating shaft part along the first sliding hole.
  • the first rotating shaft part when the first rotating shaft part rotates relative to the fixed base, the first rotating shaft part also slides relative to the first limiting member along the first sliding hole, so as to realize the sliding of the first limiting member relative to the first rotating shaft part along the first sliding hole .
  • the second limiting member passes through the second sliding hole and is fixedly connected to the fixed base.
  • the second limiting member slides relative to the second rotating shaft part along the second sliding hole.
  • the second rotating shaft part when the second rotating shaft part rotates relative to the fixed base, the second rotating shaft part also slides along the second sliding hole relative to the second limiting part, so as to realize the sliding of the second limiting part relative to the second rotating shaft part along the second sliding hole .
  • the width direction of the rotating mechanism is defined as the X-axis direction
  • the length direction of the rotating mechanism is the Y-axis direction
  • the thickness direction of the rotating mechanism is the Z-axis direction
  • the X-axis direction, Y The axis direction and the Z axis direction are perpendicular to each other.
  • the rotation of the rotating mechanism can be realized only by using the fixed base, the first swing arm and the second swing arm.
  • the structure of the rotating mechanism shown in this application is simple, which is beneficial to reduce the cost of the rotating mechanism.
  • the first swing arm and the second swing arm respectively slide with the first chute and the second chute of the fixed base, that is, the single-layer chute can realize the rotation of the rotating mechanism.
  • Rotation is conducive to reducing the thickness of the fixed base, the first swing arm and the second swing arm.
  • the rotation mechanism shown in this application can reduce the thickness of at least one layer of structural parts (about 0.6mm), which is conducive to realizing the lightness and thinness of the rotation mechanism design.
  • the rotation track of the first swing arm and the second swing arm relative to the fixed base can be limited, preventing the first swing arm and the second swing arm from The misalignment along the Y-axis direction and the Z-axis direction with the fixed base helps to improve the rotation stability of the rotating mechanism.
  • the fixed base is provided with a first fixing hole and a second fixing hole, the opening of the first fixing hole is located at the bottom wall of the first chute, and the opening of the second fixing hole is located at the groove of the second chute. bottom wall.
  • the first limiting part includes a first fixing part, a first sliding part and a first limiting part connected in sequence, the first fixing part is located in the first fixing hole, and is fixedly connected with the hole wall of the first fixing hole, so as to realize the first A fixed connection between the limiting part and the fixed base.
  • the first sliding part is located in the first sliding hole.
  • the first limiting portion is exposed relative to the top surface of the first rotating shaft portion.
  • the bottom surface of the first limiting part is clamped on the top surface of the first rotating shaft part, so as to limit the first rotating shaft part in the Z-axis direction, so that there will be no friction along the Z-axis direction between the first swing arm and the fixed base.
  • the misalignment is beneficial to improve the assembly stability between the first swing arm and the fixed base.
  • the first sliding part slides relative to the first rotating shaft part in the first sliding hole, so as to limit the first rotating shaft part in the Y-axis direction, so that the first swing arm and the fixed base There will be no misalignment along the Y-axis direction between the seats, thereby limiting the rotation track of the first rotating shaft portion relative to the fixed base.
  • the second limiting part includes a second fixing part, a second sliding part and a second limiting part connected in sequence, the second fixing part is located in the second fixing hole, and is fixedly connected with the hole wall of the second fixing hole, so as to realize the first
  • the two limiters are fixedly connected to the fixed base.
  • the second sliding part is located in the second sliding hole.
  • the second limiting portion is exposed relative to the top surface of the second rotating shaft portion.
  • the bottom surface of the second limiting part is clamped on the top surface of the second rotating shaft part to limit the second rotating shaft part in the Z-axis direction, so that there will be no friction along the Z-axis direction between the second swing arm and the fixed base.
  • the misalignment is beneficial to improve the assembly stability between the second swing arm and the fixed base.
  • the second sliding part slides relative to the second rotating shaft part in the second sliding hole, so as to limit the second rotating shaft part in the Y-axis direction, so that the second swing arm and the fixed base There will be no misalignment along the Y-axis direction between the seats, thereby limiting the rotation track of the second rotating shaft portion relative to the fixed base.
  • the rotating mechanism further includes a transmission member, the transmission member is connected between the first swing arm and the second swing arm, so that when the first swing arm rotates relative to the fixed base, it drives the second swing arm relative to the fixed base.
  • the fixed base rotates, or, when the second swing arm rotates relative to the fixed base, it drives the first swing arm to rotate relative to the fixed base, so as to realize the synchronous rotation of the first swing arm and the second swing arm relative to the fixed base.
  • the transmission member may be a gear or other components capable of realizing rotation.
  • the first swing arm further includes a first swing portion, which is fixedly connected to the first rotating shaft portion and protrudes relative to the first slide slot.
  • first swinging part rotates relative to the fixed base, it drives the first rotating shaft part to rotate relative to the fixed base in the first chute, so as to realize the rotation of the first swing arm relative to the fixed base.
  • first swing part is fixedly connected to one end of the first rotating shaft part. The first shaft part protrudes away from the top surface of the first swing part.
  • the top surface of the first limiting member is located between the top surface of the first swing part and the top surface of the first rotating shaft part. That is, the top surface of the first limiting part does not protrude relative to the top surface of the first swinging part, so that the first limiting part reuses the space in the Z-axis direction with the first rotating shaft part and the fixed base, so as to reduce the The size of the rotating mechanism in the Z-axis direction is helpful to realize the light and thin design of the rotating mechanism.
  • the second swing arm further includes a second swing portion, which is fixedly connected to the second rotating shaft portion and protrudes relative to the second slide slot.
  • the second swinging part rotates relative to the fixed base, it drives the second rotating shaft part to rotate relative to the fixed base in the second chute, so as to realize the rotation of the second swing arm relative to the fixed base.
  • the second swing part is fixedly connected to one end of the second shaft part. The first shaft part protrudes away from the top surface of the second swing part.
  • the top surface of the second limiting member is located between the top surface of the second swing part and the top surface of the second rotating shaft part. That is, the top surface of the second limiting part does not protrude relative to the top surface of the second swing part, so that the second limiting part reuses the space in the Z-axis direction with the second rotating shaft part and the fixed base, so as to reduce the The size of the rotating mechanism in the Z-axis direction is helpful to realize the light and thin design of the rotating mechanism.
  • the rotation mechanism further includes a first support plate and a second support plate.
  • the first support plate is fixedly connected to the first swing part.
  • the first supporting plate is fixedly connected to the top surface of the first swinging part.
  • the second supporting plate is fixedly connected to the second swinging part.
  • the second supporting plate is fixedly connected to the top surface of the second swinging part.
  • the top surface of the first support plate and the top surface of the second support plate form a support surface for supporting the foldable part of the display screen to ensure a good display of the display screen .
  • the first support plate, the second support plate and the fixed base enclose to form an avoidance space, which is used to avoid the foldable part of the display screen and prevent the display screen from bending at a large angle. Folding to avoid creases and other undesirable phenomena on the display screen will help prolong the service life of the display screen.
  • the first supporting plate is provided with a first avoidance hole, and the first avoiding hole penetrates the first supporting plate along the thickness direction of the first supporting plate, and is used to avoid the first stopper, so that the first supporting plate When rotating relative to the fixed base, interference between the first support plate and the first limiting member is avoided to ensure smooth rotation of the rotating mechanism.
  • the projection of the first escape hole on the first swing arm covers the first sliding hole, and covers the projection of the first limiting member on the first swing arm.
  • projections described in this application are all orthographic projections.
  • the following description of projection can be understood in the same way.
  • the second support plate is provided with a second avoidance hole, and the second avoidance hole runs through the second support plate along the thickness direction of the second support plate, and is used to avoid the second limiter, so that when the second support plate rotates relative to the fixed base , to avoid interference between the second support plate and the second limiting member, and ensure smooth rotation of the rotating mechanism.
  • the projection of the first escape hole on the first swing arm covers the second sliding hole, and covers the projection of the second limiting member on the first swing arm.
  • the first rotating shaft part and the second rotating shaft part are arranged overlappingly.
  • the first rotating shaft part and the second rotating shaft part are partially or completely overlappingly arranged, which can reduce the size of the rotating mechanism along the X-axis direction and help realize the miniaturization design of the rotating mechanism .
  • the rotating mechanism when the rotating mechanism is in a flattened state, along the X-axis direction, the first rotating shaft part and the second rotating shaft part are arranged at intervals.
  • the first rotating shaft part and the second rotating shaft part are arranged overlappingly.
  • the first rotating shaft part and the second rotating shaft part are partially or completely overlappingly arranged, which can reduce the size of the rotating mechanism along the Y-axis direction and help realize the miniaturization design of the rotating mechanism .
  • the first rotating shaft part and the second rotating shaft part are arranged at intervals.
  • the first support plate is provided with a first protrusion and a first notch.
  • the first protrusion is connected to the surface of the first support plate facing the second support plate.
  • the first protrusion extends from the surface of the first support plate towards the second support plate toward the direction of the second support plate.
  • the projection of the first protrusion on the first swing arm is located on the first rotating shaft.
  • the opening of the first notch is located on the surface of the first support plate facing the second support plate.
  • the first notch is recessed from the surface of the first support plate toward the second support plate in a direction away from the second support plate.
  • the projection of the first notch on the second swing arm is located at the second rotating shaft.
  • the second support plate is provided with a second protrusion and a second notch.
  • the second protrusion is connected to the surface of the second support plate facing the first support plate. Wherein, the second protrusion extends from the surface of the second support plate towards the first support plate toward the direction of the first support plate.
  • the projection of the second protrusion on the second swing arm is located at the second rotating shaft. Wherein, the second protrusion fits into the first notch.
  • the opening of the second notch is located on the surface of the second support plate facing the first support plate.
  • the second notch is recessed from the surface of the second support plate towards the first support plate in a direction away from the first support plate.
  • the projection of the second notch on the first swing arm is located on the first rotating shaft. Wherein, the second notch fits with the first protrusion.
  • the first protrusion engages with the second notch
  • the second protrusion engages with the first notch, so that when the first support plate and the second support plate rotate relative to the fixed base, , to avoid interference between the first support plate and the second support plate and the fixed base, and ensure smooth rotation of the rotating mechanism.
  • the engagement between the protrusion and the notch means that the protrusion is located in the notch, and the peripheral surface of the protrusion abuts against the groove side wall of the notch.
  • the first avoidance hole may also pass through the surface of the first protrusion facing the second support plate, and the second avoidance hole may also pass through the surface of the second protrusion facing the first support plate.
  • the rotation mechanism further includes a first auxiliary part and a second auxiliary part.
  • the first auxiliary part is located on a side of the first rotating shaft part away from the groove bottom wall of the first sliding groove. That is, the first rotating shaft portion is located between the first auxiliary member and the groove bottom wall of the first sliding groove.
  • the first auxiliary part is fixedly connected to the fixed base.
  • the first auxiliary member is fixedly connected to the groove side wall of the first sliding groove.
  • the first auxiliary part is provided with a first limiting hole communicating with the first sliding groove.
  • the first limiting member is also passed through the first limiting hole.
  • the first limiting member may be fixedly connected to the first auxiliary member. Wherein, the first limiting member can be fixedly connected to the hole wall of the first limiting hole.
  • the second auxiliary part is located on a side of the second rotating shaft away from the groove bottom wall of the second sliding groove. That is, the second rotating shaft portion is located between the second auxiliary member and the groove bottom wall of the second sliding groove.
  • the second auxiliary part is fixedly connected to the fixed base.
  • the second auxiliary member is fixedly connected to the groove side wall of the second sliding groove.
  • the second auxiliary part is provided with a second limiting hole communicating with the second slide groove, and the second limiting part is also passed through the second installation hole.
  • the second limiting member can be fixedly connected to the second auxiliary member.
  • the second limiting member can be fixedly connected to the hole wall of the second limiting hole.
  • the contact area between the first limiting part and the second limiting part and the rest of the rotating mechanism is increased, and the first limiting part and the second limiting part are improved.
  • the position-limiting effect of the two position-limiting parts further improves the assembly stability between the various parts of the rotating mechanism.
  • the fixing base, the first auxiliary body and the second auxiliary body can be integrally formed.
  • the top surface of the first auxiliary member is located between the top surface of the first swing part and the top surface of the first rotating shaft part. That is, the top surface of the first auxiliary part does not protrude relative to the top surface of the first swing part, so that the first auxiliary part reuses the space of the fixed base and the first swing arm along the Z-axis direction, and the rotation can be reduced.
  • the size of the mechanism in the Z-axis direction is helpful to realize the light and thin design of the rotating mechanism.
  • the top surface of the second auxiliary part is located between the top surface of the second swing part and the top surface of the second shaft part. That is, the top surface of the second auxiliary part does not protrude relative to the top surface of the second swing part, so that the second auxiliary part reuses the space of the fixed base and the second swing arm along the Z-axis direction, and the rotation can be reduced.
  • the size of the mechanism in the Z-axis direction is helpful to realize the light and thin design of the rotating mechanism.
  • the rotating mechanism includes two rotating assemblies, the two rotating assemblies are arranged at intervals along the Y-axis direction, and each rotating assembly includes a fixed base, a first swing arm, a second swing arm, a first stop piece and the second limiting piece.
  • the rotating mechanism has a plane of symmetry, and the two rotating assemblies are mirror-symmetrical about the plane of symmetry.
  • the rotating assembly has a central axis, and the rotating assembly is symmetrical about the central axis.
  • the present application provides a foldable terminal, including a first housing, a second housing, and any one of the above-mentioned rotating mechanisms.
  • the first housing is fixedly connected to the first swing arm.
  • the first casing is fixedly connected to the first swing part.
  • the second housing is fixedly connected to the second swing arm.
  • the second casing is fixedly connected to the second swing part.
  • the first casing drives the first swing arm to rotate relative to the fixed base
  • the second casing drives the second swing arm to rotate relative to the fixed base
  • the foldable terminal shown in this application adopts the above-mentioned rotating mechanism, and the thickness of the above-mentioned rotating mechanism is small, which is conducive to reducing the volume of the foldable terminal and realizing the light and thin design of the foldable terminal.
  • the foldable terminal further includes a display screen
  • the display screen includes a first display part, a second display part and a foldable part
  • the foldable part is connected between the first display part and the second display part
  • the first display part The display part is installed on the first casing
  • the second display part is installed on the second casing
  • the foldable part is arranged opposite to the rotating mechanism.
  • the bent foldable part When the foldable terminal is in the folded state, the bent foldable part is located in the avoidance space enclosed by the first support plate, the second support plate and the fixed base, so that the foldable part does not bend at a large angle, Avoiding bad phenomena such as creases on the display screen will help prolong the service life of the display screen.
  • FIG. 1 is a schematic structural diagram of a foldable terminal provided in an embodiment of the present application in a first state
  • FIG. 2 is a schematic structural diagram of the foldable terminal shown in FIG. 1 in a second state
  • FIG. 3 is a schematic structural diagram of the foldable terminal shown in FIG. 1 in a third state
  • FIG. 4 is a schematic diagram of an exploded structure of the foldable terminal shown in FIG. 3;
  • FIG. 5 is a structural schematic diagram of a first housing and a second housing of the foldable device in the foldable terminal shown in FIG. 4;
  • FIG. 6 is a structural schematic diagram of a rotating mechanism of the foldable device in the foldable terminal shown in FIG. 4;
  • Fig. 7 is a schematic diagram of an exploded structure of the rotating mechanism shown in Fig. 6;
  • Fig. 8 is a structural schematic diagram of the rotating assembly in the rotating mechanism shown in Fig. 7;
  • Fig. 9 is a schematic diagram of an exploded structure of the rotating assembly shown in Fig. 8.
  • Fig. 10 is a schematic structural view of the fixed base in the rotating assembly shown in Fig. 9;
  • Fig. 11 is a structural schematic diagram of the first swing arm and the second swing arm in the rotating assembly shown in Fig. 9;
  • Fig. 12 is a schematic cross-sectional structure diagram of the rotating assembly shown in Fig. 8 cut along A-A;
  • Fig. 13 is a schematic structural view of the first support plate in the rotating assembly shown in Fig. 6;
  • Fig. 14 is a schematic structural view of the second support plate in the rotating assembly shown in Fig. 6;
  • Fig. 15 is a schematic cross-sectional structure diagram of the rotating mechanism shown in Fig. 6 cut along B-B;
  • Fig. 16 is a schematic structural view of the rotating mechanism shown in Fig. 6 in a second state
  • Fig. 17 is a schematic structural view of the rotating mechanism shown in Fig. 6 in a third state
  • Fig. 18 is a schematic plan view of the rotating mechanism shown in Fig. 6;
  • FIG. 19 is a schematic diagram of a partial exploded structure of the foldable device in the foldable terminal shown in FIG. 4;
  • FIG. 20 is a schematic diagram of a partial structure of the foldable terminal shown in FIG. 1;
  • Fig. 21 is a schematic structural diagram of a rotating assembly of a rotating mechanism in a second foldable terminal provided in an embodiment of the present application;
  • Fig. 22 is a schematic structural view of the fixed base in the rotating assembly shown in Fig. 21;
  • Fig. 23 is a schematic cross-sectional view of the rotating assembly shown in Fig. 21 taken along D-D.
  • Figure 1 is a schematic structural diagram of a foldable terminal 1000 provided in an embodiment of the present application in the first state
  • Figure 2 is a schematic view of the foldable terminal 1000 shown in Figure 1 in the second state
  • FIG. 3 is a schematic structural diagram of the foldable terminal 1000 shown in FIG. 1 in a third state.
  • the width direction of the foldable terminal 1000 shown in FIG. the Y-axis direction and the Z-axis direction are perpendicular to each other.
  • the foldable terminal 1000 may be a foldable electronic product such as a mobile phone, a tablet computer, a personal computer, a multimedia player, an e-book reader, a notebook computer, a vehicle-mounted device, or a wearable device.
  • the foldable terminal 1000 is a foldable mobile phone. That is, the foldable terminal 1000 is a mobile phone that can be switched between a folded state and an unfolded state.
  • the foldable terminal 1000 can be folded or unfolded along the X-axis direction as an example for illustration.
  • the foldable terminal 1000 shown in FIG. 1 is in a folded state
  • the foldable terminal 1000 shown in FIG. 2 and FIG. 3 are both in an unfolded state.
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 2 is 90 degrees
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 3 is 180 degrees, that is, the foldable terminal 1000 shown in FIG. 3 is in a flattened state .
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 2 is 90 degrees means that ⁇ may be 90 degrees or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees or 100 degrees.
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 3 is 180 degrees means that ⁇ can be 180 degrees or about 180 degrees, such as 170 degrees, 175 degrees, 185 degrees and 190 degrees.
  • the angles described in the following examples can be understood in the same way.
  • the foldable terminal 1000 shown in the embodiment of the present application is a terminal that can be folded once.
  • the foldable terminal 1000 may also be a terminal that can be folded multiple times (more than twice).
  • the foldable terminal 1000 may include a plurality of parts, two adjacent parts can be folded relatively close to the foldable terminal 1000 in the folded state, and two adjacent parts can be unfolded relatively apart until the foldable terminal 1000 is in the unfolded state.
  • FIG. 4 is a schematic diagram of an exploded structure of the foldable terminal 1000 shown in FIG. 3 .
  • the foldable terminal 1000 includes a foldable device 100 and a display screen 200 , and the display screen 200 is installed on the foldable device 100 .
  • the display screen 200 includes a display surface 201 facing away from the foldable device 100 , and the display surface 201 is used for displaying information such as text, images or videos.
  • the display screen 200 includes a first display part 210 , a second display part 220 and a foldable part 230 , and the foldable part 230 is connected between the first display part 210 and the second display part 220 .
  • the foldable portion 230 can be bent along the X-axis direction.
  • the foldable terminal 1000 when the foldable terminal 1000 is in a folded state, the first display portion 210 and the second display portion 220 are disposed opposite to each other, and the foldable portion 230 is bent. At this time, the display screen 200 is in a folded state, and the exposed area of the display screen 200 is relatively small, which can greatly reduce the probability of the display screen 200 being damaged, and realize effective protection of the display screen 200 .
  • the foldable terminal 1000 is in an unfolded state, the first display portion 210 and the second display portion 220 are relatively unfolded, and the foldable portion 230 is bent. At this time, the angle between the first display part 210 and the second display part 220 is ⁇ . As shown in FIG.
  • the foldable terminal 1000 is in an unfolded state, the first display portion 210 and the second display portion 220 are relatively unfolded, and the foldable portion 230 is flattened without bending.
  • the included angles between the first display part 210, the second display part 220 and the foldable part 230 are all ⁇ , and the display screen 200 has a large display area, which realizes the large-screen display of the foldable terminal 1000 and improves the user experience. experience.
  • the foldable device 100 includes a first housing 110, a second housing 120, and a rotating mechanism 130.
  • the rotating mechanism 130 is connected between the first housing 110 and the second housing 120 to realize the first housing The rotation connection between the body 110 and the second housing 120.
  • the first housing 110 carries the first display part 210
  • the second housing 120 carries the second display part 220 .
  • the first display part 210 is installed on the first housing 210
  • the second display part 220 is installed on the second housing 120 .
  • the rotating mechanism 130 is disposed opposite to the foldable portion 230 .
  • the first housing 110 and the second housing 120 can be relatively rotated by the rotating mechanism 130 , so that the foldable device 100 can switch between the folded state and the unfolded state.
  • the first housing 110 and the second housing 120 can be rotated relative to each other so that the foldable device 100 is in a folded state, as shown in FIG. 1 .
  • the first housing 110 and the second housing 120 can also be rotated relative to each other so that the foldable device 100 is in an unfolded state, as shown in FIGS. 2 and 3 .
  • the foldable terminal 1000 shown in FIG. 2 is in an unfolded state, and the angle between the first housing 110 and the second housing 120 is ⁇ .
  • the foldable terminal 1000 shown in FIG. 3 is in a flattened state, and the angle between the first housing 110 and the second housing 120 is ⁇ .
  • FIG. 5 is a schematic structural diagram of the first housing 110 and the second housing 120 of the foldable device 100 in the foldable terminal 1000 shown in FIG. 4 .
  • the first housing 110 is provided with a first receiving groove 1101 , and the first receiving groove 1101 is located on a side of the first housing 110 facing the second housing 120 .
  • the opening of the first receiving groove 1101 is located on the top surface of the first casing 110 .
  • the first receiving groove 1101 is recessed from the top to the bottom of the first casing 110 , and penetrates through the side of the first casing 110 facing the second casing 120 .
  • the first step 1102 protrudes from the bottom wall of the first receiving groove 1101 , and the stepped surface of the first step 1102 is located between the top surface of the first casing 110 and the bottom wall of the first receiving groove 1101 .
  • the second housing 120 has the same structure as the first housing 110 , and is mirror-symmetrical with respect to the rotating mechanism 130 .
  • the second housing 120 is provided with a second receiving groove 1201 , and the second receiving groove 1201 is located on a side of the second housing 120 facing the first housing 110 .
  • the opening of the second receiving groove 1201 is located on the top surface of the second casing 120 .
  • the second receiving groove 1201 is recessed from the top to the bottom of the second housing 120 , and penetrates through the side of the second housing 120 facing the first housing 110 .
  • the second step 1202 protrudes from the bottom wall of the second receiving groove 1201 , and the stepped surface of the second step 1202 is located between the top surface of the second housing 120 and the bottom wall of the second receiving groove 1201 .
  • the first receiving groove 1101 and the second receiving groove 1201 enclose A receiving space (not shown in the figure) is formed, and the rotating mechanism 130 is accommodated in the receiving space.
  • the orientation words such as “top”, “bottom”, “left”, “right”, “front” and “back” are mainly based on the foldable terminal 1000.
  • “top” is towards the positive direction of the Z-axis
  • “bottom” is towards the negative direction of the Z-axis
  • “left” is towards the negative direction of the X-axis
  • “positive” is towards the positive direction of the Y-axis.
  • the negative direction of the Y axis is “front”, which does not form a limitation on the orientation of the foldable terminal 1000 in actual application scenarios.
  • FIG. 6 is a schematic structural diagram of the rotating mechanism 130 of the foldable device 100 in the foldable terminal 1000 shown in FIG. 4
  • FIG. 7 is a schematic exploded structural diagram of the rotating mechanism 130 shown in FIG. 6 .
  • the width direction of the rotating mechanism 130 shown in FIG. 6 is the X-axis direction
  • the length direction of the rotating mechanism 130 is the Y-axis direction
  • the thickness direction of the rotating mechanism 130 is the Z-axis direction.
  • the rotating mechanism 130 has a symmetrical plane O, and the rotating mechanism 130 is mirror-symmetrical about the symmetrical plane O.
  • the rotating mechanism 130 includes a rotating assembly 10, a first supporting plate 20 and a second supporting plate 30, and the rotating assembly 10 is connected between the first supporting plate 20 and the second supporting plate 30 to realize the first supporting plate 20 and the second supporting plate Rotational connection between plates 30. That is, the first supporting plate 20 and the second supporting plate 30 are rotatably connected through the rotating mechanism 130 .
  • the two rotating assemblies 10 are respectively a first rotating assembly 10a and a second rotating assembly 10b, and the first rotating assembly 10a and the second rotating assembly 10b are both connected to the first support plate 20 and the second Between the support plates 30.
  • the first rotating assembly 10a and the second rotating assembly 10b are arranged at intervals along the Y-axis direction.
  • the first rotating assembly 10a is located on the side of the second rotating assembly 10b facing the negative direction of the Y-axis.
  • FIG. 8 is a schematic structural view of the rotating assembly 10 in the rotating mechanism 130 shown in FIG. 7
  • FIG. 9 is a schematic exploded structural view of the rotating assembly 10 shown in FIG. 8
  • the rotating assembly 10 shown in FIG. 8 is the first rotating assembly 10 a shown in FIG. 7
  • the embodiment of the present application uses the first rotating assembly 10 a as an example to describe the structure of the rotating assembly 10 in detail.
  • the rotating assembly 10 has a central axis C, and the rotating assembly 10 is symmetrical about the central axis C.
  • the rotating assembly 10 includes a fixed base 11 , a first swing arm 12 , a second swing arm 13 , a first limiter 14 and a second limiter 15 .
  • the fixed base 11 is provided with a first sliding slot 111 and a second sliding slot 112 .
  • the first swing arm 12 includes a first shaft portion 121 , and the first shaft portion 121 is provided with a first sliding hole 122 .
  • the first rotating shaft portion 121 is installed on the first sliding slot 111 and can rotate relative to the fixed base 11 .
  • the second swing arm 13 includes a second shaft portion 131 , and the second shaft portion 131 defines a second sliding hole 132 .
  • the second rotating shaft portion 131 is installed on the second sliding slot 112 and can rotate relative to the fixed base 11 .
  • the first limiting member 14 passes through the first sliding hole 122 and is fixedly connected to the fixing base 11 .
  • the second limiting member 15 passes through the second sliding hole 132 and is fixedly connected to the fixing base 11 .
  • the rotation directions of the first rotating shaft portion 121 and the second rotating shaft portion 131 relative to the fixed base 11 are opposite.
  • the first shaft part 121 rotates counterclockwise (the direction ⁇ 1 in the figure) relative to the fixed base 11
  • the second shaft part 131 rotates clockwise (the direction ⁇ 2 in the figure) relative to the fixed base 11 .
  • the first swing arm 12 and the second swing arm 13 are rotated relative to the fixed base 11 to be relatively folded.
  • the first shaft portion 121 rotates clockwise relative to the fixed base 11
  • the second shaft portion 122 rotates counterclockwise relative to the fixed base 11 .
  • the first swing arm 12 and the second swing arm 13 rotate relative to the fixed base 11 to be relatively spread out.
  • FIG. 10 is a schematic structural view of the fixed base 11 in the rotating assembly 10 shown in FIG. 9 .
  • the fixed base 11 is centrosymmetric about the central axis C. As shown in FIG.
  • the fixed base 11 includes a top surface 113 , a bottom surface 114 , a left side 115 , a right side 116 , a front side 117 and a rear side 118 .
  • the top surface 113 and the bottom surface 114 of the fixing base 11 are opposite to each other.
  • Both the left side 115 and the right side 116 of the fixed base 11 are connected between the top surface 113 and the bottom surface 114 of the fixed base 11 .
  • the front side 117 and the rear side 118 of the fixed base 11 are opposite to each other.
  • the top surface 113 and the bottom surface 114 of the fixed base 11 are parallel to the X-Y plane
  • the left side 115 and the right side 116 of the fixed base 11 are both arc surfaces
  • the front side 117 and The rear sides 118 are all parallel to the X-Z plane.
  • the first sliding slot 111 and the second sliding slot 112 are symmetrical about the central axis C. Openings of the first sliding slot 111 and the second sliding slot 112 are located on the top surface 113 of the fixing base 11 . Both the first slide slot 111 and the second slide slot 112 are recessed from the top surface 113 to the bottom surface 114 of the fixed base 11 . Wherein, the first sliding groove 111 is close to the right side 116 of the fixed base 11 and also penetrates through the front side 117 of the fixed base 11 . The second slide slot 112 is close to the left side 115 of the fixed base 11 and also runs through the rear side 118 of the fixed base 11 .
  • first slide slots 111 and the second slide slots 112 are arranged at intervals.
  • first slide slots 111 and the second slide slots 112 are arranged at intervals.
  • both the first chute 111 and the second chute 112 are arc-shaped chute.
  • the first chute 111 and the second chute 112 can also be partially or completely overlapped, so as to reduce the size of the fixed base 11 along the X-axis direction .
  • the first sliding groove 111 and the second sliding groove 112 may also be partially or completely overlappingly arranged to reduce the size of the fixed base along the Y-axis direction.
  • the overlapping arrangement refers to the overlap of projections.
  • the partial overlapping arrangement of the first chute 111 and the second chute 112 means that the first chute 111 and the second chute 112 The projections on the X-Z axis plane partially overlap.
  • the overlapping arrangement mentioned later can be understood in the same way.
  • the fixing base 11 is further provided with an escape groove 119 , a first fixing hole 11 a and a second fixing hole 11 b.
  • the escape groove 119 is symmetrical about the central axis C.
  • An opening of the escape groove 119 is located on the top surface 113 of the fixing base 11 .
  • the escape groove 119 is recessed from the top surface 113 to the bottom surface 114 of the fixed base 11 , and runs through the groove sidewall of the first sliding groove 111 and the groove sidewall of the second sliding groove 112 .
  • the escape groove 119 also runs through the front side 117 and the rear side 118 of the fixed base 11 .
  • the escape groove 119 is an arc-shaped sliding groove.
  • the escape groove 119 may also be a square chute or a chute of other shapes.
  • the first fixing hole 11a and the second fixing hole 11b are center-symmetric about the central axis C. As shown in FIG.
  • the opening of the first fixing hole 11 a is located at the bottom wall of the first sliding groove 111 .
  • the first fixing hole 11 a is recessed from the groove bottom wall of the first sliding groove 111 toward the right side 116 of the fixing base 11 , and penetrates through the right side 116 of the fixing base 11 .
  • the opening of the second fixing hole 11 b is located at the bottom wall of the second sliding groove 112 .
  • the second fixing hole 11 b is recessed from the groove bottom wall of the second sliding groove 112 toward the left side 115 of the fixing base 11 , and penetrates through the left side 115 of the fixing base 11 .
  • both the first fixing hole 11a and the second fixing hole 11b are circular holes.
  • the first fixing hole 11 a and the second fixing hole 11 b may also be square holes or other shaped holes.
  • FIG. 11 is a schematic structural diagram of the first swing arm 12 and the second swing arm 13 in the rotating assembly 10 shown in FIG. 9 .
  • the first swing arm 12 further includes a first swing portion 123 , and the first swing portion 123 is fixedly connected to the first rotating shaft portion 121 .
  • the first shaft portion 121 is located at one end of the first swing arm 12 , and the first swing portion 123 is fixedly connected to one end of the first shaft portion 121 .
  • the first rotating shaft part 121 is in the shape of an arcuate plate, and the first swinging part 123 is in the shape of a planar plate. Wherein, the first rotating shaft portion 121 protrudes away from the top surface of the first swing portion 123 , and fits with the first slide groove 111 .
  • the matching between the first shaft part 121 and the first chute 111 means that the arc radius of the bottom surface of the first shaft part 121 is the same as the arc radius of the first chute 111, so that the first shaft part 121 can slide in the first sliding groove 111 to realize the relative rotation between the first shaft part 121 and the fixed base 11 .
  • the adaptation mentioned later can be understood in the same way.
  • the first sliding hole 122 is disposed in the middle of the first shaft portion 121 . Specifically, the opening of the first sliding hole 122 is located on the top surface of the first rotating shaft portion 121 .
  • the first sliding hole 122 is recessed from the top to the bottom of the first shaft portion 121 and penetrates through the bottom of the first shaft portion 121 . In other words, the first sliding hole 122 penetrates through the first shaft portion 121 along the thickness direction of the first shaft portion 121 .
  • the first sliding hole 122 is an arc-shaped hole, and the radius of the arc of the first sliding hole 122 is the same as that of the first rotating shaft portion 121 .
  • the structure of the second swing arm 13 is the same as that of the first swing arm 12 .
  • the second swing arm 13 further includes a second swing portion 133 , and the second swing portion 133 is fixedly connected to the second shaft portion 131 .
  • the second shaft part 131 is located at one end of the second swing arm 13 , and the second swing part 133 is fixedly connected to one end of the second shaft part 131 .
  • the second rotating shaft part 131 is in the shape of an arcuate plate, and the second swinging part 133 is in the shape of a planar plate.
  • the second shaft portion 131 protrudes away from the top surface of the second swing portion 133 .
  • the second rotating shaft portion 131 is adapted to the second sliding slot 112 .
  • the second sliding hole 132 is disposed in the middle of the second shaft portion 131 . Specifically, the opening of the second sliding hole 132 is located on the top surface of the second rotating shaft portion 131 .
  • the second sliding hole 132 is recessed from the top surface to the bottom surface of the second shaft portion 131 , and penetrates through the bottom surface of the second shaft portion 131 . In other words, the second sliding hole 132 penetrates through the second shaft portion 131 along the thickness direction of the second shaft portion 131 .
  • the second sliding hole 132 is an arc-shaped hole, and the radius of the arc of the second sliding hole 132 is the same as that of the second rotating shaft portion 131 .
  • FIG. 12 is a schematic cross-sectional view of the rotating assembly 10 shown in FIG. 8 along A-A.
  • cut along A-A refers to cut along the plane where the A-A line is located, and the same understanding will be given to the description of the drawings below.
  • Both the first swing arm 12 and the second swing arm 13 are mounted on the fixed base 11 and are symmetrical about the central axis C.
  • the first rotating shaft portion 121 is installed on the first sliding slot 111 , and the first swinging portion 123 protrudes relative to the first sliding slot 111 .
  • the first swinging portion 123 protrudes relative to the right side 116 of the fixed base 11 .
  • the second rotating shaft portion 131 is mounted on the second sliding slot 112 , and the second swinging portion 133 protrudes relative to the second sliding slot 112 . Wherein, the second swinging portion 133 protrudes relative to the left side 115 of the fixed base 11 .
  • the second swinging part 133 rotates relative to the fixed base 11 , it drives the second rotating shaft part 131 to rotate relative to the fixed base 11 in the second chute 112 to realize the rotation of the second swing arm 13 relative to the fixed base 11 .
  • the included angle between the first swing portion 123 and the second swing portion 133 is ⁇ .
  • the first shaft portion 121 and the second shaft portion 131 are arranged overlappingly.
  • the first rotating shaft portion 121 and the second rotating shaft portion 131 are partially overlapped to reduce the size of the rotating assembly 10 along the X-axis direction, thereby reducing the rotation mechanism 130 along the X-axis direction.
  • the size is helpful to realize the miniaturization design of the rotating mechanism 130 .
  • the first rotating shaft portion 121 and the second rotating shaft portion 131 are arranged at intervals.
  • the first rotating shaft portion 121 and the second rotating shaft portion 131 may also be arranged in an overlapping manner, or the first rotating shaft portion 121 and the second rotating shaft portion 131 may also be arranged at intervals.
  • the first rotating shaft portion 121 and the second rotating shaft portion 131 may also be partially or completely overlappingly arranged to reduce the size of the rotating assembly 10 along the Y-axis direction, thereby reducing the size of the rotating mechanism.
  • the dimension of 130 along the Y-axis direction is helpful to realize the miniaturization design of the rotating mechanism 130 .
  • the first limiting member 14 slides relative to the first shaft portion 121 along the first sliding hole 122 .
  • the first rotating shaft part 121 rotates relative to the fixed base 11
  • the first rotating shaft part 121 also slides relative to the first stopper 14 along the first slide hole 122, so that the first stopper 14 moves along the first slide hole.
  • 122 slides relative to the first shaft portion 121 .
  • the top surface of the first limiting member 14 is located between the top surface of the first swing portion 123 and the top surface of the first shaft portion 121 .
  • the top surface of the first limiting member 14 does not protrude relative to the top surface of the first swinging portion 123, so that the first limiting member 14, the first rotating shaft portion 121 and the fixed base 11 share the direction of the Z-axis. space, so as to reduce the size of the rotating assembly 10 along the Z-axis direction, thereby reducing the thickness of the rotating mechanism 130, which is helpful to realize the ultra-thin design of the rotating mechanism 130, and then realize the ultra-thin design of the foldable terminal 1000.
  • part of the first limiting member 14 is located in the first fixing hole 11a, part of the first limiting member 14 is located in the first sliding hole 122, and part of the first limiting member 14 is opposite to the top surface of the first shaft portion 121 exposed.
  • the first limiting member 14 includes a first fixing portion 141 , a first sliding portion 142 and a first limiting portion 143 connected in sequence.
  • the first fixing part 141 , the first sliding part 142 and the first limiting part 143 can be integrally formed.
  • the first fixing portion 141 is located in the first fixing hole 11 a and is fixedly connected to the wall of the first fixing hole 11 a to realize the fixed connection between the first limiting member 14 and the fixing base 11 .
  • the first sliding portion 142 is located in the first sliding hole 122 .
  • the first limiting portion 143 is exposed relative to the top surface of the first shaft portion 121 .
  • the bottom surface of the first limiting part 143 is clamped on the top surface of the first rotating shaft part 121 to limit the first rotating shaft part 121 in the Z-axis direction, so that there is no edge between the first swing arm 12 and the fixed base 11.
  • the misalignment in the Z-axis direction is beneficial to improve the assembly stability between the first swing arm 12 and the fixed base 11 .
  • the first sliding part 142 slides relative to the first rotating shaft part 121 in the first slide hole 122, so as to limit the first rotating shaft part 121 in the Y-axis direction, so that the first rotating shaft part 142 There will be no misalignment along the Y-axis between the swing arm 12 and the fixed base 11 , thereby limiting the rotation track of the first rotating shaft portion 121 relative to the fixed base 11 .
  • the first limiting member 14 may also include an auxiliary limiting part (not shown in the figure), the auxiliary limiting part is connected to the end of the first fixing part 141 away from the first sliding part 142, and the auxiliary limiting part The right side 116 relative to the fixed base 11 is exposed. The top surface of the auxiliary limiting portion is clamped on the right side 116 of the fixed base 11 to limit the fixed base 11 in the Z-axis direction and improve the assembly stability between the fixed base 11 and the first swing arm 12 .
  • the first fixing portion 141 may be located in the first fixing hole 11a, but not fixedly connected with the hole wall of the first fixing hole 11a.
  • the structure of the second limiting member 15 is the same as that of the first limiting member 14 .
  • the second limiting member 15 is symmetrical to the first limiting member 14 about the central axis C.
  • the second limiting member 15 slides relative to the second shaft portion 131 along the second sliding hole 132 .
  • the second rotating shaft portion 131 rotates relative to the fixed base 11
  • the second rotating shaft portion 131 also slides relative to the second limiting member 15, so that the second limiting member 15 moves relative to the second rotating shaft in the second sliding hole 132.
  • Section 131 slides.
  • the top surface of the second limiting member 14 is located between the top surface of the second swing portion 133 and the top surface of the second shaft portion 131 .
  • the top surface of the second limiting member 14 does not protrude relative to the top surface of the second swinging portion 133, so that the second limiting member 15, the second rotating shaft portion 131 and the fixed base 11 share the direction of the Z-axis. space, so as to reduce the size of the rotating assembly 10 along the Z-axis direction, thereby reducing the thickness of the rotating mechanism 130, which is helpful to realize the ultra-thin design of the rotating mechanism 130, and then realize the ultra-thin design of the foldable terminal 1000.
  • part of the second limiting member 15 is located in the second fixing hole 11 b, part of the second limiting member 15 is located in the second sliding hole 132 , and part of the second limiting member 15 is opposite to the top surface of the second shaft portion 131 exposed.
  • the second limiting member 15 includes a second fixing portion, a second sliding portion, and a second limiting portion (not shown) connected in sequence.
  • the second fixing part, the second sliding part and the second limiting part can be integrally formed.
  • the second fixing part is located in the second fixing hole 11 b, and is fixedly connected with the hole wall of the second fixing hole 11 b, so as to realize the fixed connection between the second limiting member 15 and the fixing base 11 .
  • the second sliding part is located in the second sliding hole 132 .
  • the second limiting portion is exposed relative to the top surface of the second shaft portion 131 .
  • the bottom surface of the second limiting portion is clamped on the top surface of the second rotating shaft portion 131 to limit the second rotating shaft portion 131 in the Z-axis direction, so that there will be no vertical movement between the second swing arm 13 and the fixed base 11 .
  • the misalignment in the axial direction is beneficial to improve the assembly stability between the second swing arm 13 and the fixed base 11 .
  • the second sliding part slides relative to the second rotating shaft part 131 in the second sliding hole 132, so as to limit the second rotating shaft part 131 in the Y-axis direction, so that the second rotating shaft part 131 There will be no misalignment along the Y-axis direction between the swing arm 15 and the fixed base 11 , thereby limiting the rotation track of the second rotating shaft portion 131 relative to the fixed base 11 .
  • the rotating assembly 10 may also include a transmission member (not shown in the figure), the transmission member is connected between the first swing arm 12 and the second swing arm 13, so as to fix the base 11 relatively on the first swing arm 12 While rotating, the second swing arm 13 is driven to rotate relative to the fixed base 11, or, while the second swing arm 13 is rotated relative to the fixed base 11, the first swing arm 12 is driven to rotate relative to the fixed base 11, so as to realize the second The first swing arm 12 and the second swing arm 13 rotate synchronously relative to the fixed base 11 .
  • the transmission member may be a gear or other components capable of transmission.
  • the rotation of the rotating mechanism 130 can be realized only by using the fixed base 11, the first swing arm 12 and the second swing arm 13.
  • the structure of the rotating mechanism 130 shown in this embodiment is simple and has It is beneficial to reduce the cost of the rotating mechanism 130 .
  • the first swing arm 12 and the second swing arm 13 respectively slide with the first chute 111 and the second chute 112 of the fixed base 11, that is, a single-layer chute is adopted.
  • the rotation of the rotating assembly 10 can be realized, which is conducive to reducing the thickness of the fixed base 11, the first swing arm 12 and the second swing arm 13.
  • the rotating assembly 10 shown in this embodiment can at least reduce the thickness of one layer of structural members (approximately 0.6 mm), it is beneficial to realize the light and thin design of the rotating assembly 10 , and further facilitates the realization of the light and thin design of the rotating mechanism 130 .
  • the rotation tracks of the first swing arm 12 and the second swing arm 13 relative to the fixed base 11 can be limited, preventing the first swing
  • the misalignment between the arm 12 and the second swing arm 13 and the fixed base 11 along the Y-axis direction and the Z-axis direction helps to improve the rotation stability of the rotating assembly 10 .
  • FIG. 13 is a schematic structural view of the first support plate 20 in the rotating assembly 10 shown in FIG. 6 .
  • the first supporting plate 20 is mirror-symmetrical about the plane of symmetry O. As shown in FIG.
  • the first supporting board 20 is roughly in the shape of a long strip.
  • the first support plate 20 is a steel sheet made of steel.
  • the first support plate 20 includes a left side (not marked) facing the second support plate 30 and a right side (not marked) facing away from the second support plate 30 .
  • the left side and the right side of the first support plate 20 are arranged opposite to each other.
  • the first support plate 20 is provided with a first protrusion 21 and a first notch 22 .
  • the first protrusion 21 is connected to the left side of the first support plate 20 .
  • the first protrusion 21 extends from the left side of the first support plate 20 away from the right side.
  • the first protrusion 21 also includes a left side (not marked) facing the second support plate 30 .
  • first protrusions 21 there are two first protrusions 21 , and the two first protrusions 21 are arranged at intervals along the Y-axis direction.
  • the two first protrusions 21 are respectively a first front protrusion 21a and a first rear protrusion 21b, and the first front protrusion 21a and the first rear protrusion 21b are mirror-symmetrical about the symmetry plane O.
  • the first front protrusion 21 a and the first rear protrusion 21 b may not be mirror-symmetrical about the symmetry plane O.
  • the opening of the first notch 22 is located on the left side of the first support plate 20 .
  • the first notch 22 is recessed from the left side to the right side of the first support plate 20 .
  • the first notch 22 also runs through the top surface and the bottom surface of the first support plate 20 (not shown). That is, the first notch 22 also penetrates the first support plate 20 along the thickness direction of the first support plate 20 .
  • the two first notches 22 are respectively a first front notch 22a and a first rear notch 22b, and the first front notch 22a and the first rear notch 22b are mirror-symmetrical about the symmetry plane O.
  • the first front notch 22a is closer to the first front protrusion 21a than the first rear notch 22b, and is spaced apart from the first front protrusion 21a.
  • the first rear notch 22b is closer to the first rear protrusion 21b than the first front notch 22a, and is spaced apart from the first rear protrusion 21b.
  • the first front protrusion 21 a and the first rear protrusion 21 b may not be mirror-symmetrical about the symmetry plane O.
  • the first support plate 20 is further provided with a first escape hole 23 , and the opening of the first escape hole 23 is located on the bottom surface of the first support plate 20 .
  • the first escape hole 23 is recessed from the bottom to the top of the first support plate 20 and penetrates through the top of the first support plate 20 . That is, the first escape hole 23 penetrates through the first support plate 20 along the thickness direction of the first support plate 20 . Wherein, the first escape hole 23 also runs through the left side of the first protrusion 21 .
  • there are two first escape holes 23 and the two first escape holes 23 are arranged at intervals along the Y-axis direction.
  • the two first escape holes 23 are respectively a first front escape hole 23a and a first rear escape hole 23b, and the first front escape hole 23a and the first rear escape hole 23b are mirror-symmetrical about the symmetry plane O.
  • the first front escape hole 23a also penetrates the left side of the first front protrusion 21a
  • the first rear escape hole 23b also penetrates the left side of the first rear protrusion 21b.
  • the first front escape hole 23 a and the first rear escape hole 23 b may not be mirror-symmetrical about the symmetry plane O.
  • FIG. 14 is a schematic structural view of the second support plate 30 in the rotating assembly 10 shown in FIG. 6 .
  • the second supporting board 30 cooperates with the first supporting board 20 .
  • the second support plate 30 is mirror-symmetrical about the plane of symmetry O.
  • the second supporting board 30 is in the shape of a strip.
  • the second support plate 30 is a steel sheet made of steel.
  • the second support plate 30 includes a right side (not marked) facing the first support plate 20 and a left side (not marked) facing away from the first support plate 20 .
  • the second support plate 30 has a second protrusion 31 and a second notch 32 .
  • the second protrusion 31 is connected to the right side of the second support plate 30 .
  • the second protrusion 31 extends from the right side of the second support plate 30 away from the left side.
  • the second protrusion 31 also includes a right side (not marked) facing the first support plate 20 . Wherein, the second protrusion 31 fits with the first notch 22 (as shown in FIG. 13 ). It should be noted that the matching between the protrusion and the notch means that the shape and size of the protrusion are the same as the shape and size of the notch. The matching between the protrusion and the notch mentioned later can be understood in the same way.
  • the two second protrusions 31 there are two second protrusions 31 , and the two second protrusions 31 are arranged at intervals along the Y-axis direction.
  • the two second protrusions 31 are respectively a second front protrusion 31a and a second rear protrusion 31b, and the second front protrusion 31a and the second rear protrusion 31b are mirror-symmetrical about the symmetry plane O.
  • the second front protrusion 31 a and the second rear protrusion 31 b may not be mirror-symmetrical about the symmetry plane O.
  • the opening of the second notch 32 is located on the right side of the second support plate 30 .
  • the second notch 32 is recessed from the right side to the left side of the second support plate 30 .
  • the second notch 32 also runs through the top surface and the bottom surface of the second support plate 30 (not shown). That is, the second notch 32 also penetrates the second support plate 30 along the thickness direction of the second support plate 30 . Wherein, the second notch 32 fits with the first protrusion 21 (as shown in FIG. 13 ).
  • the two second notches 32 there are two second notches 32 , and the two second notches 32 are respectively located on opposite sides of the two second protrusions 31 and arranged at intervals along the Y-axis direction.
  • the two second notches 32 are respectively a second front notch 32a and a second rear notch 32b, and the second front notch 32a and the second rear notch 32b are mirror-symmetrical about the symmetry plane O.
  • the second front notch 32a is located on a side of the second front protrusion 31a facing the second rear protrusion 31b, and is spaced apart from the second front protrusion 31a.
  • the second rear notch 32b is located on a side of the second rear protrusion 31b facing the second front protrusion 31a, and is spaced apart from the second rear protrusion 31b.
  • the first front protrusion 21 a and the first rear protrusion 21 b may not be mirror-symmetrical about the symmetry plane O.
  • the second support plate 30 is further provided with a second escape hole 33 , and the opening of the second avoidance hole 33 is located on the bottom surface of the second support plate 30 .
  • the second escape hole 33 is recessed from the bottom to the top of the second support plate 30 and penetrates through the top of the second support plate 30 . That is, the second escape hole 33 penetrates through the second support plate 30 along the thickness direction of the second support plate 30 .
  • the second escape hole 33 also runs through the right side of the second protrusion 31 .
  • there are two second escape holes 33 and the two second escape holes 33 are arranged at intervals along the Y-axis direction.
  • the two second relief holes 33 are respectively a second front relief hole 33a and a second rear relief hole 33b, and the second front relief hole 33a and the second rear relief hole 33b are mirror-symmetrical about the symmetry plane O.
  • the second front escape hole 33a also penetrates the right side of the second front protrusion 31a
  • the second rear escape hole 33b also penetrates the right side of the second rear protrusion 31b.
  • the second front escape hole 33 a and the second rear escape hole 33 b may not be mirror-symmetrical with respect to the symmetry plane O.
  • two rotating assemblies 10 are connected between the first support plate 20 and the second support plate 30 to realize the rotational connection between the first support plate 20 and the second support plate 30 .
  • the first rotating assembly 10 a is connected to one end of the first supporting plate 20 and the second supporting plate 30
  • the second rotating assembly 10 a is connected to the other end of the first supporting plate 20 and the second supporting plate 30 .
  • the first rotating assembly 10a and the second rotating assembly 10b are mirror-symmetrical about the symmetry plane O. It should be noted that the structure of the second rotating assembly 10b is mirror-symmetrical to that of the first rotating assembly 10a.
  • first rotating assembly 10a and the second rotating assembly 10 b may not be mirror-symmetrical about the symmetry plane O as well.
  • FIG. 15 is a schematic cross-sectional view of the rotating mechanism 130 shown in FIG. 6 along B-B.
  • the first support plate 20 is fixedly connected to the first swing portion 123 of the first swing arm 12
  • the second support plate 30 is fixedly connected to the second swing portion 133 of the second swing arm 13
  • the first support plate 20 is fixedly connected to the top surface of the first swing part 123
  • the second support plate 30 is fixedly connected to the top surface of the second swing part 133
  • the bottom surface of the first support plate 20 is in contact with the top surface of the first swing portion 123
  • the bottom surface of the second support plate 30 is in contact with the top surface of the second swing portion 133
  • the first swing part 123 and the first support plate 20 can be fixedly connected by welding, riveting or dispensing
  • the first swing part 123 and the second support plate 30 can be connected by welding, riveting or Fixed connection is achieved by dispensing glue.
  • Fig. 16 is a structural schematic diagram of the rotating mechanism 300 shown in Fig. 6 in the second state
  • Fig. 17 is a structural schematic diagram of the rotating mechanism 300 shown in Fig. 6 in the third state .
  • first swing arm 12 and the second swing arm 13 When the first swing arm 12 and the second swing arm 13 rotate relative to the fixed base 11, they respectively drive the first support plate 20 and the second support plate 30 to rotate relative to the fixed base 11, so that the first support plate 20 and the second support plate 30 are relatively rotated, and then the rotating mechanism 130 is switched between the folded state and the unfolded state.
  • the first swing arm 12 and the second swing arm 13 can be rotated relative to each other, and drive the first support plate 20 and the second support plate 30 to rotate relative to each other to fold, so that the rotating mechanism 300 is in a folded state, as shown in the figure 17.
  • the first swing arm 12 and the second swing arm 13 can also rotate relatively to expand relatively, and drive the first support plate 20 and the second support plate 30 to rotate relatively to expand relatively, so that the rotating mechanism 300 is in an unfolded state, as shown in Figure 6 and Figure 16 shows.
  • the rotation mechanism 300 shown in FIG. 6 is in a flattened state, the angle between the first swing part 123 and the second swing part 133 is ⁇ , and the angle between the first support plate 20 and the second support plate 30 is The angle is ⁇ .
  • the rotating mechanism 300 shown in FIG. 16 is in an unfolded state.
  • the rotating mechanism 300 shown in FIG. 16 is a structural schematic diagram of the rotating mechanism in the foldable terminal 1000 shown in FIG. 2 .
  • the angle between the first swinging part 123 and the second swinging part 133 is ⁇ , and the angle between the first support plate 20 and the second support plate 30 is ⁇ .
  • the rotating mechanism 300 shown in FIG. 17 is in a folded state.
  • FIG. 17 is a structural schematic diagram of the rotating mechanism in the foldable terminal 1000 shown in FIG. 1 .
  • the angle between the first swinging part 123 and the second swinging part 133 is 0 degree, and the angle between the first support plate 20 and the second support plate 30 is 0 degree.
  • the first support plate 20 , the second support plate 30 and the fixed base 11 enclose to form an escape space 1302 .
  • FIG. 18 is a schematic plan view of the rotating mechanism 130 shown in FIG. 6 .
  • the projection of the first protrusion 21 of the first support plate 20 on the first swing arm 12 is located at the first rotating shaft portion 121, so as to prevent the first support plate 20 from contacting the fixed base 11 when the first support plate 20 rotates relative to the fixed base 11.
  • the interference between the bases 11 improves the smoothness of rotation of the rotation mechanism 130 .
  • the projection of the first front protrusion 21a on the first swing arm 12 of the first rotating assembly 10a is located at the first shaft portion 121 of the first rotating assembly 10a
  • the first rear protrusion 21b is located at the first rotating shaft portion 121 of the second rotating assembly 10b.
  • the projection on the first swing arm 12 is located on the first rotating shaft part 121 of the second rotating assembly 10b.
  • the projection of the first notch 22 of the first support plate 20 on the second swing arm 13 is located at the second shaft portion 131 .
  • the projection of the first front notch 22a on the second swing arm 13 of the first rotating assembly 10a is located at the second shaft part 131 of the second rotating assembly 10a, and the first rear notch 22b is at the second rotating arm 131 of the second rotating assembly 10b.
  • the projection on the swing arm 13 is located at the second shaft portion 131 .
  • the first escape hole 23 of the first support plate 20 is used for avoiding the first limiting member 14 of the rotating assembly 10 .
  • the projection of the first escape hole 23 on the first swing arm 12 covers the first slide hole 123 and covers the projection of the first limiting member 14 on the first swing arm 12 , so that the first support plate 20 is opposite
  • the first front escape hole 23a is used for avoiding the first limiting member 14 of the first rotating assembly 10a
  • the first rear avoiding hole 23b is used for avoiding the first limiting member 14 of the second rotating assembly 10b.
  • the projection of the second protrusion 31 of the second support plate 30 on the second swing arm 13 is located at the second shaft portion 131, so as to prevent the second support plate 30 from contacting the second support plate 30 when the second support plate 30 rotates relative to the fixed base 11. Interference occurs between the two limiting members 15 to improve the smoothness of rotation of the rotation mechanism 130 .
  • the projection of the second front protrusion 31a on the second swing arm 13 of the first rotating assembly 10a is located on the second shaft portion 131 of the first rotating assembly 10a, and the second rear protrusion 31b is located on the second rotating assembly 10b.
  • the projection on the second swing arm 13 is located at the second shaft part 131 of the second rotating assembly 10b.
  • the projection of the second notch 32 of the second support plate 30 on the first swing arm 12 is located at the first shaft portion 121 .
  • the projection of the second front notch 32a on the first swing arm 12 of the first rotating assembly 10a is located at the first rotating shaft portion 121 of the first rotating assembly 10a
  • the second rear notch 32b is at the first swing arm 12 of the second rotating assembly 10b.
  • the projection on the swing arm 12 is located at the first rotating shaft portion 121 of the second rotating assembly 10b.
  • the second escape hole 33 of the second support plate 30 is used for avoiding the second limiting member 15 of the rotating assembly 10 .
  • the projection of the second avoidance hole 33 on the second swing arm 13 covers the second sliding hole 122 and covers the projection of the second limiter 15 on the second swing arm 13 , so that the second support plate 30 is opposite When the fixed base 11 rotates, it prevents the interference between the second support plate 30 and the second limiting member 15 to ensure smooth rotation of the rotating mechanism 130 .
  • the second front escape hole 33a is used for avoiding the second limiting member 15 of the first rotating assembly 10a
  • the second rear avoiding hole 33b is used for avoiding the second limiting member 15 of the second rotating assembly 10b.
  • the first support plate 20 and the second support plate 30 cooperate with each other.
  • the top surface 2001 of the first support plate 20 and the top surface of the second support plate 3001 form a support surface 1303 .
  • the two first protrusions 21 of the first support plate 20 are respectively engaged with the two second notches 32 of the second support plate 30, and the two second protrusions 31 of the second support plate 30 are respectively engaged with the second notches 32 of the second support plate 30.
  • the two first notches 22 of a support plate 20 are engaged, so that when the first support plate 20 and the second support plate 30 rotate relative to the fixed base 11, the first support plate 20 and the second support plate 30 are prevented from being connected with the fixed base 11.
  • the interference between the bases 11 ensures smooth rotation of the rotating mechanism 130 .
  • the first front protrusion 21a is engaged with the second front notch 32a
  • the first rear protrusion 21b is engaged with the second rear notch 32b
  • the second front protrusion 31a is engaged with the first front notch 22a
  • the second rear protrusion 31b engages with the first rear notch 22b.
  • the engagement between the protrusion and the notch described in the embodiment of the present application means that the protrusion is accommodated in the notch, and the side of the protrusion is against the side wall of the notch.
  • FIG. 19 is a partial exploded structural diagram of the foldable device 100 in the foldable terminal 1000 shown in FIG. 4 .
  • the first supporting plate 20 of the rotating mechanism 130 is not installed on the first casing 110 .
  • the rotating mechanism 130 is installed in the receiving space 1301 .
  • the partial rotation mechanism 130 is installed in the first receiving groove 1101 of the first casing 110
  • the partial rotation mechanism 130 is installed in the second receiving groove 1201 of the second casing 120 .
  • the first swing arm 12 is fixedly connected to the first casing 110
  • the second swing arm 13 is fixedly connected to the second casing 120 .
  • the first swing part 123 of the first swing arm 12 is fixedly connected to the first casing 110
  • the second swing part 133 of the second swing arm 13 is fixedly connected to the second casing 120 .
  • the first housing 110 and the second housing 120 are relatively folded or unfolded
  • the first housing 110 drives the first swing arm 12 to rotate relative to the fixed base 11
  • the second housing 120 drives the second swing arm 13 to rotate relative to the fixed base.
  • Seat 11 rotates.
  • the bottom surface of the first swinging portion 123 is in contact with the step surface of the first step 1102
  • the bottom surface of the second swinging portion 133 is in contact with the step surface of the second step 1202 (as shown in FIG. 5 ).
  • the first swing arm 12 may be fixedly connected to the first housing 110 by means of screws or bolts
  • the second swing arm 13 may be fixedly connected to the second housing 120 by means of screws or bolts.
  • the support surface 1303 formed by the first support plate 20 and the second support plate 30 can support the foldable portion 230 of the display screen 200 to ensure a good display of the display screen 230 .
  • the top surface of the first support plate 20 is flush with the top surface of the first shell 110
  • the top surface of the second support plate 30 is flush with the top surface of the second shell 120, so that the first support plate 20 and the top surface of the second shell 120 are flush with each other.
  • the second support plate 30 can support the display screen 200 together with the first housing 110 and the second housing 120 , so that the foldable device 100 in a flattened state can effectively support the display screen 200 .
  • FIG. 20 is a schematic diagram of a partial structure of the foldable terminal 1000 shown in FIG. 1 .
  • the foldable terminal 1000 shown in FIG. 20 only shows the rotating mechanism 130 and the display screen 200 .
  • the foldable portion 230 of the display screen 200 is located inside the rotating mechanism 130 .
  • the foldable part 230 is located in the escape space 1302 .
  • the partially foldable part 230 is located between the first support plate 20 and the second support plate 30, and is spaced apart from the first support plate 20 and the second support plate 30, and the partially foldable portion 230 is located in the avoidance of the fixed base 11.
  • the rotating mechanism 130 can avoid the R angle formed when the foldable part 230 is bent, so that the foldable part 230 will not be bent at a large angle, avoiding defects such as creases on the display screen 200, and helping to extend the display time. The service life of the screen 200.
  • FIG. 21 is a schematic structural diagram of the rotating assembly 10 of the rotating mechanism in the second type of foldable terminal provided by the embodiment of the present application.
  • the rotating assembly 10 has a central axis C, and the rotating assembly 10 is symmetrical about the central axis C.
  • the rotating assembly 10 includes a fixed base 11 , a first swing arm 12 , a second swing arm 13 , a first limiter 14 and a second limiter 15 .
  • the fixed base 11 is provided with a first sliding slot 111 and a second sliding slot 112 .
  • the first swing arm 12 includes a first shaft portion 121 , and the first shaft portion 121 is provided with a first sliding hole 122 .
  • the first rotating shaft portion 121 is installed on the first sliding slot 111 and can rotate relative to the fixed base 11 .
  • the second swing arm 13 includes a second shaft portion 131 , and the second shaft portion 131 defines a second sliding hole 132 .
  • the second rotating shaft portion 131 is installed on the second sliding slot 112 and can rotate relative to the fixed base 11 .
  • the first limiting member 14 passes through the first sliding hole 122 and is fixedly connected to the fixing base 11 .
  • the second limiting member 15 passes through the second sliding hole 132 and is fixedly connected to the fixing base 11 .
  • the rotation directions of the first rotating shaft portion 121 and the second rotating shaft portion 131 relative to the fixed base 11 are opposite.
  • the first shaft part 121 rotates counterclockwise (the direction ⁇ 1 in the figure) relative to the fixed base 11
  • the second shaft part 131 rotates clockwise (the direction ⁇ 2 in the figure) relative to the fixed base 11 .
  • the first swing arm 12 and the second swing arm 13 are rotated relative to the fixed base 11 to be relatively folded.
  • the first shaft portion 121 rotates clockwise relative to the fixed base 11
  • the second shaft portion 122 rotates counterclockwise relative to the fixed base 11 .
  • the first swing arm 12 and the second swing arm 13 rotate relative to the fixed base 11 to be relatively spread out.
  • FIG. 22 is a schematic diagram of the assembly structure of the fixed base 11 , the first auxiliary part 16 and the second auxiliary part 17 in the rotating assembly 10 shown in FIG. 21 .
  • the rotating assembly 10 also includes a first auxiliary part 16 and a second auxiliary part 17, the first auxiliary part 16 and the second auxiliary part 17.
  • the second auxiliary components 17 are all fixedly connected to the fixing base 11 .
  • the first auxiliary part 16 and the second auxiliary part 17 are symmetrical about the central axis C.
  • the fixed base 11 , the first auxiliary part 16 and the second auxiliary part 17 can be integrally formed.
  • the first auxiliary member 16 is fixedly connected to the groove side wall of the first sliding groove 111 , and is spaced apart from the groove bottom wall of the first sliding groove 111 .
  • the first auxiliary member 16 extends from the side wall of the first sliding slot 111 to the front side 117 of the fixing base 11 .
  • the top surface (not marked) of the first auxiliary part 16 is flush with the top surface 113 of the fixed base 11, and the front side (not marked) of the first auxiliary part 16 is flush with the front side 117 of the fixed base 11 flat.
  • the left side (not shown) of the first auxiliary member 16 is an arc surface.
  • the left side of the first auxiliary member 16 is connected to the groove side wall of the escape groove 119 and is on the same arc surface as the groove side wall of the escape groove 119 . That is, the left side surface of the first auxiliary member 16 and the groove side wall of the escape groove 119 respectively belong to two parts of the same arc surface.
  • the first auxiliary part 16 is further provided with a first limiting hole 161 , and the opening of the first limiting hole 161 is located on the top surface of the first auxiliary part 16 .
  • the first limiting hole 161 is recessed from the top to the bottom (not shown) of the first auxiliary member 16 , and penetrates through the bottom of the first auxiliary member 16 to communicate with the first sliding groove 111 .
  • the top surface of the first auxiliary member 16 may also be located between the top surface 113 and the bottom surface 114 of the fixing base 11 .
  • the top surface of the first auxiliary member 16 does not protrude relative to the top surface 113 of the fixed base 11, it is helpful to reduce the size of the rotating assembly 10 along the Z-axis direction, and is conducive to realizing a thinner design of the rotating assembly 10 .
  • the second auxiliary part 17 is fixedly connected to the groove side wall of the second sliding groove 112 , and is spaced apart from the groove bottom wall of the second sliding groove 112 .
  • the second auxiliary member 17 extends from the side wall of the second sliding slot 112 to the rear side 118 of the fixing base 11 .
  • the top surface (not marked) of the second auxiliary part 17 is flush with the top surface 113 of the fixed base 11, and the rear side (not marked) of the second auxiliary part 17 is flush with the rear side 118 of the fixed base 11 flat.
  • the right side (not shown) of the second auxiliary member 17 is an arc surface.
  • the right side of the second auxiliary part 17 is connected to the groove side wall of the escape groove 119 and is on the same arc surface as the groove side wall of the escape groove 119 . That is, the right side of the second auxiliary member 17 and the groove sidewall of the escape groove 119 respectively belong to two parts of the same arc surface.
  • the second auxiliary part 17 is further provided with a second limiting hole 171 , and the opening of the second limiting hole 171 is located on the top surface of the second auxiliary part 17 .
  • the second limiting hole 171 is recessed from the top to the bottom (not shown) of the second auxiliary member 17 , and penetrates through the bottom of the second auxiliary member 17 to communicate with the second sliding groove 112 .
  • the top surface of the second auxiliary member 17 may also be located between the top surface 113 and the bottom surface 114 of the fixing base 11 .
  • the top surface of the second auxiliary member 17 does not protrude relative to the top surface 113 of the fixed base 11, it is helpful to reduce the size of the rotating assembly 10 along the Z-axis direction, and is conducive to realizing a thinner design of the rotating assembly 10 .
  • FIG. 23 is a schematic cross-sectional view of the rotating assembly 10 shown in FIG. 21 along D-D.
  • Both the first swing arm 12 and the second swing arm 13 are installed on the fixed base 11 and are symmetrical to the central axis C.
  • the first rotating shaft portion 121 is installed on the first sliding slot 111 , and the first swinging portion 123 protrudes relative to the first sliding slot 111 .
  • the first rotating shaft portion 121 is located between the first auxiliary member 16 and the groove bottom wall of the first sliding groove 11 . That is, the first auxiliary member 16 is located on a side of the first shaft portion 121 away from the bottom wall of the first sliding groove 111 .
  • the bottom surface of the first rotating shaft portion 121 is in contact with the bottom wall of the first slide groove 111 , and the top surface of the first rotating shaft portion 121 is in contact with the bottom surface of the first auxiliary member 16 .
  • the top surface of the first auxiliary part 16 is located between the top surface of the first swing part 123 and the top surface of the first shaft part 121 , that is, the top surface of the first auxiliary part 16 is not opposite to the top surface of the first swing part 123 .
  • the top surface protrudes, so that the first auxiliary member 16 can reuse the space in the Z-axis direction with the fixed base 11 and the first swing arm 12, so as to reduce the size of the rotating assembly 10 in the Z-axis direction and help to realize the rotation Thin and light design of the mechanism.
  • the second rotating shaft portion 131 is mounted on the second sliding slot 112 , and the second swinging portion 133 protrudes relative to the second sliding slot 112 .
  • the second rotating shaft portion 131 is located between the second auxiliary member 17 and the groove bottom wall of the second sliding groove 112 . That is, the second auxiliary member 17 is located on a side of the second shaft portion 131 away from the second slide slot 112 .
  • the bottom surface of the second rotating shaft portion 131 is in contact with the bottom wall of the second slide groove 112
  • the top surface of the second rotating shaft portion 131 is in contact with the bottom surface of the second auxiliary member 17 .
  • the top surface of the second auxiliary part 17 is located between the top surface of the second swing part 133 and the top surface of the second shaft part 131 , that is, the top surface of the second auxiliary part 17 is not opposite to the top surface of the second swing part 133 .
  • the top surface protrudes so that the second auxiliary part 17 reuses the space in the Z-axis direction with the fixed base 11 and the second swing arm 13, so as to reduce the size of the rotating assembly 10 in the Z-axis direction, which helps to realize Thin and light design of the rotating mechanism.
  • the first limiting member 14 is also passed through the first limiting hole 161 . Specifically, part of the first limiting member 14 is located in the first fixing hole (not shown), part of the first limiting member 14 is located in the first sliding hole 122, and part of the first limiting member 14 is located in the first limiting hole 161. Part of the first limiting member 14 is exposed relative to the top surface of the first auxiliary member 16 .
  • the first limiting member 14 includes a first fixing portion 141 , a first sliding portion 142 , a first auxiliary portion 144 and a first limiting portion 143 connected in sequence.
  • the first fixing part 141 , the first sliding part 142 , the first auxiliary part 144 and the first limiting part 143 can be integrally formed.
  • the first fixing portion 141 is located in the first fixing hole 11 a and is fixedly connected to the wall of the first fixing hole 11 a to realize the fixed connection between the first limiting member 14 and the fixing base 11 .
  • the first sliding portion 142 is located in the first sliding hole 122 .
  • the first auxiliary portion 144 is located in the first limiting hole 161 .
  • the first auxiliary part 144 can be fixedly connected to the hole wall of the first limiting hole 161 to realize the fixed connection between the first limiting part 14 and the first auxiliary part 16 .
  • the first limiting portion 143 is exposed relative to the top surface of the first auxiliary member 16 .
  • the bottom surface of the first limiting portion 143 is clamped on the top surface of the first auxiliary member 16 to limit the first rotating shaft portion 121 in the Z-axis direction and improve the assembly stability of the rotating assembly 10 .
  • the structure of the second limiting member 15 is the same as that of the first limiting member 14 .
  • the second limiting member 15 is also passed through the second limiting hole 171 , and is symmetrical with the first limiting member 14 about the central axis C. As shown in FIG. Specifically, part of the second limiting member 15 is located in the second fixing hole 11b, part of the second limiting member 15 is located in the second sliding hole 132, part of the second limiting member 15 is located in the second limiting hole 171, and part of the second limiting member 15 is located in the second limiting hole 171.
  • the position piece 15 is exposed relative to the top surface of the second auxiliary piece 17 .
  • the second limiting member 15 includes a second fixing part, a second sliding part, a second auxiliary part and a second limiting part (not shown in the figure) connected in sequence.
  • the second fixing part, the second sliding part, the second auxiliary part and the second limiting part can be integrally formed.
  • the second fixing part is located in the second fixing hole 11 b, and is fixedly connected with the hole wall of the second fixing hole 11 b, so as to realize the fixed connection between the second limiting member 15 and the fixing base 11 .
  • the first sliding portion 142 is located in the second sliding hole 132 .
  • the second auxiliary part is located in the second limiting hole 171 .
  • the second auxiliary part can be fixedly connected with the hole wall of the second limiting hole 171 , so as to realize the fixed connection between the second limiting part 15 and the second auxiliary part 17 .
  • the second limiting portion is exposed relative to the top surface of the second auxiliary member 17 .
  • the bottom surface of the second limiting part is clamped on the top surface of the second auxiliary part 17 to limit the second rotating shaft part 131 in the Z-axis direction and improve the assembly stability of the rotating assembly 10 .
  • the contact area between the first limiting member 14 and the second limiting member 15 and the rest of the rotating assembly 10 is increased, and the first auxiliary member 17 is improved.
  • the limiting effect of the limiting member 14 and the second limiting member 15 further improves the assembly stability between the components of the rotating assembly 10 .
  • the left side of the first auxiliary part 16 and the right side of the second auxiliary part 17 are in the same arc surface as the groove side wall of the escape groove 119, when the foldable terminal is in the folded state, the first auxiliary part 16 and the second auxiliary part 17 can avoid the R angle formed when the foldable part of the display screen is bent, reducing the influence of the rotating mechanism on the display screen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Telephone Set Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

本申请提供一种转动机构和可折叠终端。转动机构包括固定基座、第一摆臂、第二摆臂、第一限位件和第二限位件。固定基座设有第一滑槽和第二滑槽。第一摆臂的第一转轴部安装于第一滑槽，且可相对固定基座转动。第二摆臂的第二转轴部安装于第二滑槽，且可相对固定基座转动。其中，第一转轴部和第二转轴部相对固定基座转动的转动方向相反。第一限位件穿设于第一转轴部的第一滑孔，且固定连接于固定基座。第一转轴部相对固定基座转动时，第一限位件沿第一滑孔相对第一转轴部滑动。第二限位件穿设于第二转轴部的第二滑孔，且固定连接于固定基座，第二转轴部相对固定基座转动时，第二限位件沿第二滑孔相对第二转轴部滑动。

Description

转动机构和可折叠终端
本申请要求于2021年08月20日提交中国专利局、申请号为202110961388.1、申请名称为“转动机构和可折叠终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及可折叠终端领域，尤其涉及一种转动机构和可折叠终端。
背景技术
随着科技的进步，大屏智能终端时代来临，可折叠终端因其大屏和方便携带等优点而备受用户青睐。目前，可折叠终端往往采用转动机构来实现折叠和展开。然而，为了保证转动机构的转动可靠性，现有的转动机构往往厚度较大，不利于实现可折叠终端的轻薄化设计。
发明内容
本申请提供一种转动机构和可折叠终端，转动机构的厚度较小，有利于减小可折叠终端的体积，实现可折叠终端的轻薄化设计。
第一方面，本申请提供一种转动机构，包括固定基座、第一摆臂、第二摆臂、第一限位件和第二限位件。固定基座设有第一滑槽和第二滑槽。其中，第一滑槽和第二滑槽的开口均位于固定基座的顶面。第一滑槽和第二滑槽均自固定基座的顶面向底面的方向凹陷。示例性的，第一滑槽和第二滑槽均为圆弧形槽。
第一摆臂包括第一转轴部，第一转轴部安装于第一滑槽，且可相对固定基座转动。其中，第一转轴部位于第一摆臂的一端。第一转轴部呈圆弧形板状，且与第一滑槽相适配。第一转轴部朝远离第一摆动部的顶面的方向凸出。第一转轴部设有第一滑孔，第一滑孔沿第一转轴部的厚度方向贯穿第一转轴部。其中，第一滑孔为圆弧形孔。
第二摆臂包括第二转轴部，第二转轴部安装于第二滑槽，且可相对固定基座转动。其中，第二转轴部位于第二摆臂的一端。第二转轴部呈圆弧形板状，且与第二滑槽相适配。第二转轴部朝远离第二摆动部的顶面的方向凸出。第二转轴部设有第二滑孔，第二滑孔沿第二转轴部的厚度方向贯穿第二转轴部。其中，第二滑孔为圆弧形孔。
其中，第一转轴部和第二转轴部相对固定基座转动的转动方向相反。
示例性的，第一转轴部相对固定基座沿逆时针方向转动，第二转轴部相对固定基座沿顺时针方向转动，此时，第一摆臂和第二摆臂相对固定基座转动以相对折叠。或者，第一转轴部相对固定基座沿顺时针方向转动，第二转轴部相对固定基座沿逆时针方向转动，此时，第一摆臂和第二摆臂相对固定基座转动以相对展开。
第一限位件穿设于第一滑孔，且固定连接于固定基座。第一转轴部相对固定基座转动时，第一限位件沿第一滑孔相对第一转轴部滑动。
其中，第一转轴部相对固定基座转动时，第一转轴部也沿第一滑孔相对第一限位件滑 动，以实现第一限位件沿第一滑孔相对第一转轴部的滑动。
第二限位件穿设于第二滑孔，且固定连接于固定基座。第二转轴部相对固定基座转动时，第二限位件沿第二滑孔相对第二转轴部滑动。
其中，第二转轴部相对固定基座转动时，第二转轴部也相对第二限位件沿第二滑孔滑动，以实现第二限位件沿第二滑孔相对第二转轴部的滑动。
其中，为了便于描述，转动机构处于展平状态时，定义转动机构的宽度方向为X轴方向，转动机构的长度方向为Y轴方向，转动机构的厚度方向为Z轴方向，X轴方向、Y轴方向和Z轴方向两两相互垂直。
本申请所示转动机构中，仅利用固定基座、第一摆臂和第二摆臂即可实现转动机构的转动，本申请所示转动机构的结构简单，有利于减少转动机构的成本。而且，相比于现有的转动机构，第一摆臂和第二摆臂分别与固定基座的第一滑槽和第二滑槽实现滑动，即采用单层滑槽即可实现转动机构的转动，有利于减少固定基座、第一摆臂和第二摆臂的厚度，本申请所示转动机构至少可以减少一层结构件的厚度(约为0.6mm)，有利于实现转动机构的轻薄化设计。
此外，通过第一限位件和第二限位件与固定基座的配合，可限定第一摆臂和第二摆臂相对固定基座的转动轨迹，防止第一摆臂和第二摆臂与固定基座之间发生沿Y轴方向和Z轴方向的错位，有助于提高转动机构的转动稳定性。
一种实施方式中，固定基座设有第一固定孔和第二固定孔，第一固定孔的开口位于第一滑槽的槽底壁，第二固定孔的开口位于第二滑槽的槽底壁。
第一限位件包括依次连接的第一固定部、第一滑动部和第一限位部，第一固定部位于第一固定孔，且与第一固定孔的孔壁固定连接，以实现第一限位件与固定基座的固定连接。第一滑动部位于第一滑孔。第一限位部相对于第一转轴部的顶面露出。第一限位部的底面卡持于第一转轴部的顶面，以在Z轴方向限位第一转轴部，使得第一摆臂与固定基座之间不会发生沿Z轴方向上的错位，有利于提高第一摆臂与固定基座之间的装配稳定。
其中，第一转轴部相对固定基座转动时，第一滑动部在第一滑孔内相对第一转轴部滑动，以在Y轴方向限位第一转轴部，使得第一摆臂与固定基座之间不会发生沿Y轴方向上的错位，从而限制第一转轴部相对固定基座的转动轨迹。
第二限位件包括依次连接的第二固定部、第二滑动部和第二限位部，第二固定部位于第二固定孔，且与第二固定孔的孔壁固定连接，以实现第二限位件与固定基座的固定连接。第二滑动部位于第二滑孔。第二限位部相对于第二转轴部的顶面露出。第二限位部的底面卡持于第二转轴部的顶面，以在Z轴方向限位第二转轴部，使得第二摆臂与固定基座之间不会发生沿Z轴方向上的错位，有利于提高第二摆臂与固定基座之间的装配稳定。
其中，第二转轴部相对固定基座转动时，第二滑动部在第二滑孔内相对第二转轴部滑动，以在Y轴方向限位第二转轴部，使得第二摆臂与固定基座之间不会发生沿Y轴方向上的错位，从而限制第二转轴部相对固定基座的转动轨迹。
一种实施方式中，转动机构还包括传动件，所述传动件连接于第一摆臂和第二摆臂之间，以在第一摆臂相对固定基座转动时，带动第二摆臂相对固定基座转动，或者，在第二摆臂相对固定基座转动时，带动第一摆臂相对固定基座转动，以实现第一摆臂和第二摆臂 相对固定基座的同步转动。示例性的，传动件可为齿轮或其他可实现转动的部件。
一种实施方式中，第一摆臂还包括第一摆动部，第一摆动部与第一转轴部固定连接，且相对于第一滑槽伸出。第一摆动部相对固定基座转动时，带动第一转轴部在第一滑槽内相对固定基座转动，以实现第一摆臂相对固定基座的转动。其中，第一摆动部固定连接于第一转轴部的一端。第一转轴部朝背离第一摆动部的顶面的方向凸出。
第一限位件的顶面位于第一摆动部的顶面和第一转轴部的顶面之间。即，第一限位件的顶面不相对于第一摆动部的顶面凸出，以使第一限位件与第一转轴部和固定基座复用Z轴方向的空间，以减小转动机构在Z轴方向上的尺寸，有助于实现转动机构的轻薄化设计。
第二摆臂还包括第二摆动部，第二摆动部与第二转轴部固定连接，且相对于第二滑槽伸出。第二摆动部相对固定基座转动时，带动第二转轴部在第二滑槽内相对固定基座转动，以实现第二摆臂相对固定基座的转动。其中，第二摆动部固定连接于第二转轴部的一端。第一转轴部朝背离第二摆动部的顶面的方向凸出。
第二限位件的顶面位于第二摆动部的顶面和第二转轴部的顶面之间。即，第二限位件的顶面不相对于第二摆动部的顶面凸出，以使第二限位件与第二转轴部和固定基座复用Z轴方向的空间，以减小转动机构在Z轴方向上的尺寸，有助于实现转动机构的轻薄化设计。
一种实施方式中，转动机构还包括第一支撑板和第二支撑板。第一支撑板固定连接于第一摆动部。其中，第一支撑板固定连接于第一摆动部的顶面。第一摆动部相对固定基座转动时，带动第一支撑板相对固定基座转动。第二支撑板固定连接于第二摆动部。其中，第二支撑板固定连接于第二摆动部的顶面。第二摆动部相对固定基座转动时，带动第二支撑板相对固定基座转动。
其中，转动机构处于展开状态时，第一支撑板和第二支撑板相对展开。转动机构处于折叠状态时，第一支撑板和第二支撑板相对折叠。
一种实施方式中，转动机构处于展平状态时，第一支撑板的顶面和第二支撑板的顶面形成支撑面，用于支撑显示屏的可折叠部分，以保证显示屏的良好显示。
一种实施方式中，转动机构处于折叠状态时，第一支撑板、第二支撑板和固定基座围合形成避让空间，用于避让显示屏的可折叠部分，防止显示屏出现较大角度弯折，以避免显示屏产生折痕等不良现象，有助于延长显示屏的使用寿命。
一种实施方式中，第一支撑板设有第一避让孔，第一避让孔沿第一支撑板的厚度方向贯穿第一支撑板，用于避让第一限位件，以在第一支撑板相对固定基座转动时，避免第一支撑板与第一限位件之间发生干涉，保证转动机构的转动流畅性。
其中，第一避让孔在第一摆臂上的投影覆盖第一滑孔，且覆盖第一限位件在第一摆臂上的投影。
需要说明的是，本申请所描述的投影均为正投影。后文对投影的描述可做相同理解。
第二支撑板设有第二避让孔，第二避让孔沿第二支撑板的厚度方向贯穿第二支撑板，用于避让第二限位件，以在第二支撑板相对固定基座转动时，避免第二支撑板与第二限位件之间发生干涉，保证转动机构的转动流畅性。
其中，第一避让孔在第一摆臂上的投影覆盖第二滑孔，且覆盖第二限位件在第一摆臂上的投影。
一种实施方式中，转动机构处于展平状态时，沿X轴方向上，第一转轴部和第二转轴部重叠排布。其中，沿X轴方向上，第一转轴部和第二转轴部部分重叠排布或者全部重叠排布，可减小转动机构沿X轴方向上的尺寸，有助于实现转动机构的小型化设计。
另一种实施方式中，转动机构处于展平状态时，沿X轴方向上，第一转轴部和第二转轴部间隔排布。
一种实施方式中，沿Y轴方向上，第一转轴部和第二转轴部重叠排布。其中，沿Y轴方向上，第一转轴部和第二转轴部部分重叠排布或者全部重叠排布，可减小转动机构沿Y轴方向上的尺寸，有助于实现转动机构的小型化设计。
另一种实施方式中，沿Y轴方向上，第一转轴部和第二转轴部间隔排布。
一种实施方式中，第一支撑板设有第一凸起和第一缺口。第一凸起连接于第一支撑板朝向第二支撑板的表面。其中，第一凸起自第一支撑板朝向第二支撑板的表面朝第二支撑板的方向延伸。第一凸起在第一摆臂上的投影位于第一转轴部。第一缺口的开口位于第一支撑板朝向第二支撑板的表面。其中，第一缺口自第一支撑板朝向第二支撑板的表面朝背离第二支撑板的方向凹陷。第一缺口在第二摆臂上的投影位于第二转轴部。
第二支撑板设有第二凸起和第二缺口。第二凸起连接于第二支撑板朝向第一支撑板的表面。其中，第二凸起自第二支撑板朝向第一支撑板的表面朝第一支撑板的方向延伸。第二凸起在第二摆臂上的投影位于第二转轴部。其中，第二凸起与第一缺口相适配。
第二缺口的开口位于第二支撑板朝向第一支撑板的表面。其中，第二缺口自第二支撑板朝向第一支撑板的表面朝背离第一支撑板的方向凹陷。第二缺口在第一摆臂上的投影位于第一转轴部。其中，第二缺口与第一凸起相适配。
转动机构处于展平状态时，第一凸起与第二缺口相卡合，第二凸起与第一缺口相卡合，以在第一支撑板和第二支撑板与固定基座相对转动时，避免第一支撑板和第二支撑板与固定基座之间发生干涉，保证转动机构的转动流畅性。需要说明的是，凸起和缺口相卡合是指，凸起位于缺口内，且凸起的周面与缺口的槽侧壁抵接。
一种实施方式中，第一避让孔还可贯穿第一凸起朝向第二支撑板的表面，第二避让孔还可贯穿第二凸起朝向第一支撑板的表面。
一种实施方式中，转动机构还包括第一辅助件和第二辅助件。第一辅助件位于第一转轴部背离第一滑槽的槽底壁的一侧。即，第一转轴部位于第一辅助件和第一滑槽的槽底壁之间。第一辅助件固定连接于固定基座。示例性的，第一辅助件固定连接于第一滑槽的槽侧壁。第一辅助件设有与第一滑槽连通的第一限位孔。第一限位件还穿设于第一限位孔。示例性的，第一限位件可固定连接于第一辅助件。其中，第一限位件可固定连接于第一限位孔的孔壁。
第二辅助件位于第二转轴部远离第二滑槽的槽底壁的一侧。即，第二转轴部位于第二辅助件和第二滑槽的槽底壁之间。第二辅助件固定连接于固定基座。示例性的，第二辅助件固定连接于第二滑槽的槽侧壁。第二辅助件设有与第二滑槽连通的第二限位孔，第二限位件还穿设于第二安装孔。示例性的，第二限位件可固定连接于第二辅助件。其中，第二限位件可固定连接于第二限位孔的孔壁。
本实施方式中，通过增设第一辅助件和第二辅助件，增加了第一限位件和第二限位件 与转动机构其余部件之间的接触面积，提升了第一限位件和第二限位件的限位效果，进而提高了转动机构各个部件之间的装配稳定性。
一种实施方式中，固定基座、第一辅助体和第二辅助体可一体成型。
一种实施方式中，第一辅助件的顶面位于第一摆动部的顶面与第一转轴部的顶面之间。即，第一辅助件的顶面不相对于第一摆动部的顶面凸出，以使第一辅助件复用固定基座和第一摆臂沿Z轴方向上的空间，可减小转动机构在Z轴方向上的尺寸，有助于实现转动机构的轻薄化设计。
第二辅助件的顶面位于第二摆动部的顶面与第二转轴部的顶面之间。即，第二辅助件的顶面不相对于第二摆动部的顶面凸出，以使第二辅助件复用固定基座和第二摆臂沿Z轴方向上的空间，可减小转动机构在Z轴方向上的尺寸，有助于实现转动机构的轻薄化设计。
一种实施方式中，转动机构包括两个转动组件，两个转动组件沿Y轴方向间隔排布，每一转动组件均包括固定基座、第一摆臂、第二摆臂、第一限位件和第二限位件。
一种实施方式中，转动机构具有对称面，两个转动组件关于对称面镜像对称。
一种实施方式中，转动组件具有中心轴，转动组件关于中心轴中心对称。
第二方面，本申请提供一种可折叠终端，包括第一壳体、第二壳体和上述任一种转动机构。第一壳体固定连接于第一摆臂。其中，第一壳体固定连接于第一摆动部。第二壳体固定连接于第二摆臂。其中，第二壳体固定连接于第二摆动部。
其中，可折叠终端处于展开状态时，第一壳体和第二壳体相对展开，转动机构处于展开状态。可折叠终端处于折叠状态时，第一壳体和第二壳体相对折叠，转动机构处于折叠状态。
其中，第一壳体和第二壳体相对折叠或相对展开时，第一壳体带动第一摆臂相对固定基座转动，第二壳体带动第二摆臂相对固定基座转动。
本申请所示可折叠终端采用上述转动机构，上述转动机构的厚度较小，有利于减小可折叠终端的体积，实现可折叠终端的轻薄化设计。
一种实施方式中，可折叠终端还包括显示屏，显示屏包括第一显示部分、第二显示部分及可折叠部分，可折叠部分连接于第一显示部分和第二显示部分之间，第一显示部分安装于第一壳体，第二显示部分安装于第二壳体，可折叠部分与转动机构相对设置。
可折叠终端处于折叠状态时，发生弯折的可折叠部分位于第一支撑板、第二支撑板和固定基座围合形成的避让空间内，使得可折叠部分不会出现较大角度弯折，避免显示屏产生折痕等不良现象，有助于延长显示屏的使用寿命。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的一种可折叠终端在第一种状态下的结构示意图；
图2是图1所示的可折叠终端在第二种状态下的结构示意图；
图3是图1所示的可折叠终端在第三种状态下的结构示意图；
图4是图3所示可折叠终端的分解结构示意图；
图5是图4所示可折叠终端中可折叠装置的第一壳体和第二壳体的结构示意图；
图6是图4所示可折叠终端中可折叠装置的转动机构的结构示意图；
图7是图6所示转动机构的分解结构示意图；
图8是图7所示转动机构中转动组件的结构示意图；
图9是图8所示转动组件的分解结构示意图；
图10是图9所示转动组件中固定基座的结构示意图；
图11是图9所示转动组件中第一摆臂和第二摆臂的结构示意图；
图12是图8所示转动组件沿A-A处剖开的剖面结构示意图；
图13是图6所示转动组件中第一支撑板的结构示意图；
图14是图6所示转动组件中第二支撑板的结构示意图；
图15是图6所示转动机构沿B-B处剖开的剖面结构示意图；
图16是图6所示转动机构在第二种状态下的结构示意图；
图17是图6所示转动机构在第三种状态下的结构示意图；
图18是图6所示转动机构的平面结构示意图；
图19是图4所示可折叠终端中可折叠装置的局部分解结构示意图；
图20是图1所示可折叠终端的局部结构示意图；
图21是本申请实施例提供的第二种可折叠终端中转动机构的转动组件的结构示意图；
图22是图21所示转动组件中固定基座的结构示意图；
图23是图21所示转动组件沿D-D处剖开的剖面结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参阅图1至图3，图1是本申请实施例提供的一种可折叠终端1000在第一种状态下的结构示意图，图2是图1所示可折叠终端1000在第二种状态下的结构示意图，图3是图1所示可折叠终端1000在第三种状态下的结构示意图。
其中，为了便于描述，定义图3所示可折叠终端1000的宽度方向为X轴方向，可折叠终端1000的长度方向为Y轴方向，可折叠终端1000的厚度方向为Z轴方向，X轴方向、Y轴方向和Z轴方向两两相互垂直。
可折叠终端1000可以为手机、平板电脑、个人计算机、多媒体播放器、电子书阅读器、笔记本电脑、车载设备或可穿戴设备等可折叠的电子产品。本实施例中，可折叠终端1000为可折叠手机。即，可折叠终端1000为可以在折叠状态和展开状态之间切换的手机。本申请实施例中，以可折叠终端1000可沿X轴方向发生折叠或者展开为例进行说明。
其中，图1所示可折叠终端1000处于折叠状态，图2和图3所示可折叠终端1000均处于展开状态。示例性的，图2所示可折叠终端1000的展开角度α为90度，图3所示可折叠终端1000的展开角度β为180度，即，图3所示可折叠终端1000处于展平状态。
需要说明的是，本申请实施例举例说明的角度均允许存在少许偏差。例如，图2所示可折叠终端1000的展开角度α为90度是指，α可以为90度，也可以大约为90度，比如80度、85度、95度或100度等。再例如，图3所示可折叠终端1000的展开角度β为180 度是指，β可以为180度，也可以大约为180度，比如170度、175度、185度和190度等。后文中举例说明的角度可做相同理解。
应当理解的是，本申请实施例所示可折叠终端1000为可发生一次折叠的终端。在其他一些实施例中，可折叠终端1000也可以为可发生多次(两次以上)折叠的终端。此时，可折叠终端1000可以包括多个部分，相邻两个部分可相对靠近折叠至可折叠终端1000处于折叠状态，相邻两个部分可相对远离展开至可折叠终端1000处于展开状态。
请一并参阅图4，图4是图3所示可折叠终端1000的分解结构示意图。
可折叠终端1000包括可折叠装置100和显示屏200，显示屏200安装于可折叠装置100。显示屏200包括背离可折叠装置100的显示面201，显示面201用以显示文字、图像或视频等信息。本实施例中，显示屏200包括第一显示部分210、第二显示部分220和可折叠部分230，可折叠部分230连接于第一显示部分210和第二显示部分220之间。其中，可折叠部分230可沿X轴方向发生弯折。
如图1所示，可折叠终端1000处于折叠状态时，第一显示部分210和第二显示部分220相对设置，可折叠部分230发生弯折。此时，显示屏200处于折叠状态，显示屏200的外露面积比较少，可大大降低显示屏200被损坏的概率，实现对显示屏200的有效保护。如图2所示，可折叠终端1000处于展开状态，第一显示部分210和第二显示部分220相对展开，可折叠部分230发生弯折。此时，第一显示部分210和第二显示部分220之间的夹角为α。如图3所示，可折叠终端1000处于展开状态，第一显示部分210和第二显示部分220相对展开，可折叠部分230不发生弯折而展平。此时，第一显示部分210、第二显示部分220和可折叠部分230之间的夹角均为β，显示屏200具有大面积的显示区域，实现可折叠终端1000的大屏显示，提高用户的使用体验。
本实施例中，可折叠装置100包括第一壳体110、第二壳体120以及转动机构130，转动机构130连接于第一壳体110和第二壳体120之间，以实现第一壳体110和第二壳体120之间的转动连接。具体的，第一壳体110承载第一显示部分210，第二壳体120承载第二显示部分220。换言之，第一显示部分210安装于第一壳体210，第二显示部分220安装于第二壳体120。其中，转动机构130与可折叠部分230相对设置。
第一壳体110和第二壳体120可通过转动机构130相对转动，使得可折叠装置100在折叠状态和展开状态之间相互切换。具体的，第一壳体110和第二壳体120可相对转动至相对设置，以使可折叠装置100处于折叠状态，如图1所示。第一壳体110和第二壳体120也可相对转动至相对展开，以使可折叠装置100处于展开状态，如图2和图3所示。示例性的，图2所示可折叠终端1000处于展开状态，第一壳体110和第二壳体120之间的夹角为α。图3所示可折叠终端1000处于展平状态，第一壳体110和第二壳体120之间的夹角为β。
请一并参阅图5，图5是图4所示可折叠终端1000中可折叠装置100的第一壳体110和第二壳体120的结构示意图。
第一壳体110设有第一收容槽1101，第一收容槽1101位于第一壳体110朝向第二壳体120的一侧。第一收容槽1101的开口位于第一壳体110的顶面。第一收容槽1101自第一壳体110的顶面向底面的方向凹陷，且贯穿第一壳体110朝向第二壳体120的侧面。其中， 第一收容槽1101的槽底壁凸设有第一台阶1102，第一台阶1102的台阶面位于第一壳体110的顶面和第一收容槽1101的槽底壁之间。
第二壳体120和第一壳体110的结构相同，且相对于转动机构130镜像对称。第二壳体120设有第二收容槽1201，第二收容槽1201位于第二壳体120朝向第一壳体110的一侧。第二收容槽1201的开口位于第二壳体120的顶面。第二收容槽1201自第二壳体120的顶面向底面的方向凹陷，且贯穿第二壳体120朝向第一壳体110的侧面。其中，第二收容槽1201的槽底壁凸设有第二台阶1202，第二台阶1202的台阶面位于第二壳体120的顶面和第二收容槽1201的槽底壁之间。如图4所示，可折叠装置100处于展平状态时，即第一壳体110和第二壳体120之间的夹角为β时，第一收容槽1101和第二收容槽1201围合形成收容空间(图未标)，收容空间收容转动机构130。
需要说明的是，本申请实施例描述可折叠终端1000时所采用“顶”、“底”、“左”、“右”、“前”和“后”等方位用词主要依据可折叠终端1000于附图3中的展示方位进行阐述，以朝向Z轴正方向为“顶”，以朝向Z轴负方向为“底”，以朝向X轴负方向为“左”，以朝向Y轴正方向为“后”，以朝向Y轴负方向为“前”，其并不形成对可折叠终端1000于实际应用场景中的方位的限定。
请参阅图6和图7，图6是图4所示可折叠终端1000中可折叠装置100的转动机构130的结构示意图，图7是图6所示转动机构130的分解结构示意图。其中，图6所示转动机构130的宽度方向即为X轴方向，转动机构130的长度方向即为Y轴方向，转动机构130的厚度方向即为Z轴方向。
本实施例中，转动机构130具有对称面O，转动机构130关于对称面O镜像对称。转动机构130包括转动组件10、第一支撑板20和第二支撑板30，转动组件10连接于第一支撑板20和第二支撑板30之间，以实现第一支撑板20和第二支撑板30之间的转动连接。即，第一支撑板20和第二支撑板30通过转动机构130转动连接。
其中，转动组件10有两个，两个转动组件10分别为第一转动组件10a和第二转动组件10b，第一转动组件10a和第二转动组件10b均连接于第一支撑板20和第二支撑板30之间。第一转动组件10a和第二转动组件10b沿Y轴方向彼此间隔排布。其中，第一转动组件10a位于第二转动组件10b朝Y轴负方向的一侧。在其他一些实施例中，转动组件10也可以有一个或三个以上，本申请实施例对转动组件10的数量不作具体限定。
请参阅图8和图9，图8是图7所示转动机构130中转动组件10的结构示意图，图9是图8所示转动组件10的分解结构示意图。需要说明的是，图8所示转动组件10为图7所示第一转动组件10a，本申请实施例以第一转动组件10a为例对转动组件10的结构进行具体描述。
本实施例中，转动组件10具有中心轴C，转动组件10关于中心轴C中心对称。转动组件10包括固定基座11、第一摆臂12、第二摆臂13、第一限位件14和第二限位件15。固定基座11设有第一滑槽111和第二滑槽112。第一摆臂12包括第一转轴部121，第一转轴部121设有第一滑孔122。第一转轴部121安装于第一滑槽111，且可相对固定基座11转动。第二摆臂13包括第二转轴部131，第二转轴部131设有第二滑孔132。第二转轴部131安装于第二滑槽112，且可相对固定基座11转动。第一限位件14穿设于第一滑孔122， 且固定连接于固定基座11。第二限位件15穿设于第二滑孔132，且固定连接于固定基座11。
其中，第一转轴部121和第二转轴部131相对固定基座11转动的转动方向相反。示例性的，第一转轴部121相对固定基座11沿逆时针方向(图示ω1方向)转动，第二转轴部131相对固定基座11沿顺时针方向(图示ω2方向)转动。此时，第一摆臂12和第二摆臂13相对固定基座11转动以相对折叠。或者，第一转轴部121相对固定基座11沿顺时针方向转动，第二转轴部122相对固定基座11沿逆时针方向转动。此时，第一摆臂12和第二摆臂13相对固定基座11转动以相对展开。
请参阅图10，图10是图9所示转动组件10中固定基座11的结构示意图。
固定基座11关于中心轴C中心对称。固定基座11包括顶面113、底面114、左侧面115、右侧面116、前侧面117和后侧面118。固定基座11的顶面113和底面114相背设置。固定基座11的左侧面115和右侧面116均连接于固定基座11的顶面113和底面114之间。固定基座11的前侧面117和后侧面118相背设置。示例性的，固定基座11的顶面113和底面114均平行于X-Y平面，固定基座11的左侧面115和右侧面116均为圆弧面，固定基座11的前侧面117和后侧面118均平行于X-Z平面。
第一滑槽111和第二滑槽112关于中心轴C中心对称。第一滑槽111和第二滑槽112的开口均位于固定基座11的顶面113。第一滑槽111和第二滑槽112均自固定基座11的顶面113向底面114的方向的凹陷。其中，第一滑槽111靠近固定基座11的右侧面116，还贯穿固定基座11的前侧面117。第二滑槽112靠近固定基座11的左侧面115，还贯穿固定基座11的后侧面118。具体的，沿X轴方向上，第一滑槽111和第二滑槽112间隔排布。沿Y轴方向上，第一滑槽111和第二滑槽112间隔排布。示例性的，第一滑槽111和第二滑槽112均为圆弧形滑槽。
在其他一些实施例中，沿X轴方向上，第一滑槽111和第二滑槽112也可以部分重叠排布或全部重叠排布，以减小固定基座11沿X轴方向上的尺寸。或者，沿Y轴方向，第一滑槽111和第二滑槽112也可以部分重叠排布或者全部重叠排布，以减小固定基座沿Y轴方向上的尺寸。需要说明的是，重叠排布是指投影重叠，比如，沿X轴方向上，第一滑槽111和第二滑槽112部分重叠排布是指，第一滑槽111和第二滑槽112在X-Z轴平面上的投影部分重叠。后文中提及的重叠排布可做相同理解。
此外，固定基座11还设有避让槽119、第一固定孔11a和第二固定孔11b。避让槽119关于中心轴C中心对称。避让槽119的开口位于固定基座11的顶面113。避让槽119自固定基座11的顶面113向底面114的方向凹陷，且贯穿第一滑槽111的槽侧壁和第二滑槽112的槽侧壁。其中，避让槽119还贯穿固定基座11的前侧面117和后侧面118。示例性的，避让槽119为圆弧形滑槽。在其他一些实施例中，避让槽119也可以为方形滑槽或者其他形状的滑槽。
第一固定孔11a和第二固定孔11b关于中心轴C中心对称。第一固定孔11a的开口位于第一滑槽111的槽底壁。第一固定孔11a自第一滑槽111的槽底壁向固定基座11的右侧面116的方向凹陷，且贯穿固定基座11的右侧面116。第二固定孔11b的开口位于第二滑槽112的槽底壁。第二固定孔11b自第二滑槽112的槽底壁向固定基座11的左侧面115的方向凹陷，且贯穿固定基座11的左侧面115。示例性的，第一固定孔11a和第二固定孔11b 均为圆形孔。在其他一些实施例中，第一固定孔11a和第二固定孔11b也可以为方形孔或者其他异形孔。
请参阅图11，图11是图9所示转动组件10中第一摆臂12和第二摆臂13的结构示意图。
第一摆臂12还包括第一摆动部123，第一摆动部123与第一转轴部121固定连接。第一转轴部121位于第一摆臂12的一端，第一摆动部123固定连接于第一转轴部121的一端。第一转轴部121呈圆弧形板状，第一摆动部123呈平面板状。其中，第一转轴部121朝背离第一摆动部123的顶面的方向凸出，且与第一滑槽111相适配。
需要说明的是，第一转轴部121与第一滑槽111相适配是指，第一转轴部121的底面的圆弧半径与第一滑槽111的圆弧半径相同，使得第一转轴部121可在第一滑槽111内滑动，以实现第一转轴部121与固定基座11之间的相对转动。后文所提及的相适配可作相同理解。
第一滑孔122设于第一转轴部121的中部。具体的，第一滑孔122的开口位于第一转轴部121的顶面。第一滑孔122自第一转轴部121的顶面向底面的方向凹陷，且贯穿第一转轴部121的底面。换言之，第一滑孔122沿第一转轴部121的厚度方向贯穿第一转轴部121。示例性的，第一滑孔122为圆弧形孔，第一滑孔122的圆弧半径与第一转轴部121的圆弧半径相同。
本实施例中，第二摆臂13与第一摆臂12的结构相同。第二摆臂13还包括第二摆动部133，第二摆动部133与第二转轴部131固定连接。第二转轴部131位于第二摆臂13的一端，第二摆动部133固定连接于第二转轴部131的一端。第二转轴部131呈圆弧形板状，第二摆动部133呈平面板状。第二转轴部131朝背离第二摆动部133的顶面的方向凸出。其中，第二转轴部131与第二滑槽112相适配。
第二滑孔132设于第二转轴部131的中部。具体的，第二滑孔132的开口位于第二转轴部131的顶面。第二滑孔132自第二转轴部131的顶面向底面的方向凹陷，且贯穿第二转轴部131的底面。换言之，第二滑孔132沿第二转轴部131的厚度方向贯穿第二转轴部131。示例性的，第二滑孔132为圆弧形孔，第二滑孔132的圆弧半径与第二转轴部131的圆弧半径相同。
请参阅图8和图12，图12是图8所示转动组件10沿A-A处剖开的剖面结构示意图。本申请附图中，沿“A-A处剖开”是指沿A-A线所在的平面剖开，后文中对附图的说明做相同理解。
第一摆臂12和第二摆臂13均安装于固定基座11，且关于中心轴C中心对称。具体的，第一转轴部121安装于第一滑槽111，第一摆动部123相对于第一滑槽111伸出。其中，第一摆动部123相对于固定基座11的右侧面116伸出。第一摆动部123相对固定基座11转动时，带动第一转轴部121在第一滑槽111内相对固定基座11转动，以实现第一摆臂12相对固定基座11的转动。第二转轴部131安装于第二滑槽112，第二摆动部133相对于第二滑槽112伸出。其中，第二摆动部133相对于固定基座11的左侧面115伸出。第二摆动部133相对固定基座11转动时，带动第二转轴部131在第二滑槽112内相对固定基座11转动，以实现第二摆臂13相对固定基座11的转动。
此时，第一摆动部123和第二摆动部133之间的夹角为β。沿X轴方向上，第一转轴部121和第二转轴部131重叠排布。其中，沿X轴方向上，第一转轴部121和第二转轴部131部分重叠排布，以减小转动组件10沿X轴方向上的尺寸，进而减小转动机构130沿X轴方向上的尺寸，有助于实现转动机构130的小型化设计。沿Y轴方向上，第一转轴部121和第二转轴部131间隔排布。
在其他一些实施例中，沿X轴方向上，第一转轴部121和第二转轴部131也可以全部重叠排布，或者，第一转轴部121和第二转轴部131也可以间隔排布。或者，沿Y轴方向上，第一转轴部121和第二转轴部131也可以部分重叠排布或者全部重叠排布，以减小转动组件10沿Y轴方向上的尺寸，进而减小转动机构130沿Y轴方向上的尺寸，有助于实现转动机构130的小型化设计。
第一转轴部121相对固定基座11转动时，第一限位件14沿第一滑孔122相对第一转轴部121滑动。具体的，第一转轴部121相对固定基座11转动时，第一转轴部121也沿第一滑孔122相对第一限位件14滑动，以实现第一限位件14沿第一滑孔122相对第一转轴部121滑动。其中，第一限位件14的顶面位于第一摆动部123的顶面与第一转轴部121的顶面之间。即，第一限位件14的顶面不相对于第一摆动部123的顶面凸出，以使第一限位件14与第一转轴部121和固定基座11复用Z轴方向的空间，以减小转动组件10沿Z轴方向的尺寸，进而减小转动机构130的厚度，有助于实现转动机构130的超薄化设计，进而实现可折叠终端1000的超薄化设计。
本实施例中，部分第一限位件14位于第一固定孔11a，部分第一限位件14位于第一滑孔122，部分第一限位件14相对于第一转轴部121的顶面露出。具体的，第一限位件14包括依次连接的第一固定部141、第一滑动部142和第一限位部143。示例性的，第一固定部141、第一滑动部142和第一限位部143可一体成型。第一固定部141位于第一固定孔11a，且与第一固定孔11a的孔壁固定连接，以实现第一限位件14与固定基座11的固定连接。第一滑动部142位于第一滑孔122。第一限位部143相对于第一转轴部121的顶面露出。第一限位部143的底面卡持于第一转轴部121的顶面，以在Z轴方向限位第一转轴部121，使得第一摆臂12与固定基座11之间不会发生沿Z轴方向上的错位，有利于提高第一摆臂12和固定基座11之间的装配稳定性。其中，第一转轴部121相对固定基座11转动时，第一滑动部142在第一滑孔122内相对第一转轴部121滑动，以在Y轴方向限位第一转轴部121，使得第一摆臂12与固定基座11之间不会发生沿Y轴方向上的错位，从而限制第一转轴部121相对固定基座11的转动轨迹。
在其他一些实施例中，第一限位件14还可以包括辅助限位部(图未示)，辅助限位部连接于第一固定部141远离第一滑动部142的一端，辅助限位部相对于固定基座11的右侧面116露出。辅助限位部的顶面卡持于固定基座11的右侧面116，以在Z轴方向限位固定基座11，提高固定基座11与第一摆臂12之间的装配稳定性。此时，第一固定部141可位于第一固定孔11a，而不与第一固定孔11a的孔壁固定连接。
第二限位件15与第一限位件14的结构相同。第二限位件15与第一限位件14关于中心轴C中心对称。第二转轴部131相对固定基座11转动时，第二限位件15沿第二滑孔132相对第二转轴部131滑动。具体的，第二转轴部131相对固定基座11转动时，第二转轴部 131也相对第二限位件15滑动，以实现第二限位件15在第二滑孔132内相对第二转轴部131滑动。其中，第二限位件14的顶面位于第二摆动部133的顶面与第二转轴部131的顶面之间。即，第二限位件14的顶面不相对于第二摆动部133的顶面凸出，以使第二限位件15与第二转轴部131和固定基座11复用Z轴方向的空间，以减小转动组件10沿Z轴方向的尺寸，进而减小转动机构130的厚度，有助于实现转动机构130的超薄化设计，进而实现可折叠终端1000的超薄化设计。
本实施例中，部分第二限位件15位于第二固定孔11b，部分第二限位件15位于第二滑孔132，部分第二限位件15相对于第二转轴部131的顶面露出。具体的，第二限位件15包括依次连接的第二固定部、第二滑动部和第二限位部(图未示)。示例性的，第二固定部、第二滑动部和第二限位部可一体成型。第二固定部位于第二固定孔11b，且与第二固定孔11b的孔壁固定连接，以实现第二限位件15与固定基座11的固定连接。第二滑动部位于第二滑孔132。第二限位部相对于第二转轴部131的顶面露出。第二限位部的底面卡持于第二转轴部131的顶面，以在Z轴方向限位第二转轴部131，使得第二摆臂13与固定基座11之间不会发生沿Z轴方向上的错位，有利于提高第二摆臂13和固定基座11之间的装配稳定性。其中，第二转轴部131相对固定基座11转动时，第二滑动部在第二滑孔132内相对第二转轴部131滑动，以在Y轴方向限位第二转轴部131，使得第二摆臂15与固定基座11之间不会发生沿Y轴方向上的错位，从而限制第二转轴部131相对固定基座11的转动轨迹。
一种实施方式中，转动组件10还可以包括传动件(图未示)，传动件连接于第一摆臂12和第二摆臂13之间，以在第一摆臂12相对固定基座11转动的同时，带动第二摆臂13相对固定基座11转动，或者，在第二摆臂13相对固定基座11转动的同时，带动第一摆臂12相对固定基座11转动，以实现第一摆臂12和第二摆臂13相对固定基座11的同步转动。示例性的，传动件可为齿轮或其他可实现传动的部件。
本实施例所示转动组件10中，仅利用固定基座11、第一摆臂12和第二摆臂13即可实现转动机构130的转动，本实施例所示转动机构130的结构简单，有利于减少转动机构130的成本。而且，相比于现有的转动机构，第一摆臂12和第二摆臂13分别与固定基座11的第一滑槽111和第二滑槽112实现滑动，即采用单层滑槽即可实现转动组件10的转动，有利于减少固定基座11、第一摆臂12和第二摆臂13的厚度，本实施例所示转动组件10至少可以减少一层结构件的厚度(约为0.6mm)，有利于实现转动组件10的轻薄化设计，进而有利于实现转动机构130的轻薄化设计。
此外，通过第一限位件14和第二限位件15与固定基座11的配合，可限定第一摆臂12和第二摆臂13相对固定基座11的转动轨迹，防止第一摆臂12和第二摆臂13与固定基座11之间发生沿Y轴方向和Z轴方向的错位，有助于提高转动组件10的转动稳定性。
请参阅图6和图13，图13是图6所示转动组件10中第一支撑板20的结构示意图。
第一支撑板20关于对称面O镜像对称。第一支撑板20大致呈长条形板状。示例性的，第一支撑板20为采用钢材制成的钢片。具体的，第一支撑板20包括朝向第二支撑板30的左侧面(图未标)和背离第二支撑板30的右侧面(图未标)。第一支撑板20的左侧面和右侧面相背设置。第一支撑板20设有第一凸起21和第一缺口22。第一凸起21连接于第一支撑板20的左侧面。第一凸起21自第一支撑板20的左侧面向背离右侧面的方向延伸。此 外，第一凸起21还包括朝向第二支撑板30的左侧面(图未标)。
示例性的，第一凸起21有两个，两个第一凸起21沿Y轴方向间隔排布。其中，两个第一凸起21分别为第一前凸起21a和第一后凸起21b，第一前凸起21a和第一后凸起21b关于对称面O镜像对称。在其他一些实施例中，第一前凸起21a和第一后凸起21b也可以不关于对称面O镜像对称。
第一缺口22的开口位于第一支撑板20的左侧面。第一缺口22自第一支撑板20的左侧面向右侧面的方向凹陷。第一缺口22还贯穿第一支撑板20的顶面和底面(图未标)。即，第一缺口22还沿第一支撑板20的厚度方向贯穿第一支撑板20。示例性的，第一缺口22有两个，两个第一缺口22均位于第一前凸起21a和第一后凸起21b之间，且沿Y轴方向间隔排布。其中，两个第一缺口22分别为第一前缺口22a和第一后缺口22b，第一前缺口22a和第一后缺口22b关于对称面O镜像对称。此外，第一前缺口22a相比于第一后缺口22b靠近第一前凸起21a，且与第一前凸起21a间隔设置。第一后缺口22b相比于第一前缺口22a靠近第一后凸起21b，且与第一后凸起21b间隔设置。在其他一些实施例中，第一前凸起21a和第一后凸起21b也可以不关于对称面O镜像对称。
此外，第一支撑板20还设有第一避让孔23，第一避让孔23的开口位于第一支撑板20的底面。第一避让孔23自第一支撑板20的底面向顶面的方向凹陷，且贯穿第一支撑板20的顶面。即，第一避让孔23沿第一支撑板20的厚度方向贯穿第一支撑板20。其中，第一避让孔23还贯穿第一凸起21的左侧面。示例性的，第一避让孔23有两个，两个第一避让孔23沿Y轴方向间隔排布。其中，两个第一避让孔23分别为第一前避让孔23a和第一后避让孔23b，第一前避让孔23a和第一后避让孔23b关于对称面O镜像对称。此外，第一前避让孔23a还贯穿第一前凸起21a的左侧面，第一后避让孔23b还贯穿第一后凸起21b的左侧面。在其他一些实施例中，第一前避让孔23a和第一后避让孔23b也可以不关于对称面O镜像对称。
请参阅图6和图14，图14是图6所示转动组件10中第二支撑板30的结构示意图。
第二支撑板30与第一支撑板20相配合。第二支撑板30关于对称面O镜像对称。第二支撑板30呈长条形板状。示例性的，第二支撑板30为采用钢材制成的钢片。具体的，第二支撑板30包括朝向第一支撑板20的右侧面(图未标)和背离第一支撑板20左侧面(图未标)。第二支撑板30设有第二凸起31和第二缺口32。第二凸起31连接于第二支撑板30的右侧面。第二凸起31自第二支撑板30的右侧面向背离左侧面的方向延伸。此外，第二凸起31还包括朝向第一支撑板20的右侧面(图未标)。其中，第二凸起31与第一缺口22(如图13所示)相适配。需要说明的是，凸起与缺口相适配是指，凸起的形状和尺寸与缺口的形状和尺寸相同。后文所提及的凸起与缺口相适配可作相同理解。
示例性的，第二凸起31有两个，两个第二凸起31沿Y轴方向间隔排布。其中，两个第二凸起31分别为第二前凸起31a和第二后凸起31b，第二前凸起31a和第二后凸起31b关于对称面O镜像对称。在其他一些实施例中，第二前凸起31a和第二后凸起31b也可以不关于对称面O镜像对称。
第二缺口32的开口位于第二支撑板30的右侧面。第二缺口32自第二支撑板30的右侧面向左侧面的方向凹陷。第二缺口32还贯穿第二支撑板30的顶面和底面(图未标)。即， 第二缺口32还沿第二支撑板30的厚度方向贯穿第二支撑板30。其中，第二缺口32与第一凸起21(如图13所示)相适配。
示例性的，第二缺口32有两个，两个第二缺口32分别位于两个第二凸起31的相对两侧，且沿Y轴方向间隔排布。其中，两个第二缺口32分别为第二前缺口32a和第二后缺口32b，第二前缺口32a和第二后缺口32b关于对称面O镜像对称。此外，第二前缺口32a位于第二前凸起31a朝向第二后凸起31b的一侧，且与第二前凸起31a间隔设置。第二后缺口32b位于第二后凸起31b朝向第二前凸起31a的一侧，且与第二后凸起31b间隔设置。在其他一些实施例中，第一前凸起21a和第一后凸起21b也可以不关于对称面O镜像对称。
此外，第二支撑板30还设有第二避让孔33，第二避让孔33的开口位于第二支撑板30的底面。第二避让孔33自第二支撑板30的底面向顶面的方向凹陷，且贯穿第二支撑板30的顶面。即，第二避让孔33沿第二支撑板30的厚度方向贯穿第二支撑板30。其中，第二避让孔33还贯穿第二凸起31的右侧面。示例性的，第二避让孔33有两个，两个第二避让孔33沿Y轴方向间隔排布。其中，两个第二避让孔33分别为第二前避让孔33a和第二后避让孔33b，第二前避让孔33a和第二后避让孔33b关于对称面O镜像对称。此外，第二前避让孔33a还贯穿第二前凸起31a的右侧面，第二后避让孔33b还贯穿第二后凸起31b的右侧面。在其他一些实施例中，第二前避让孔33a和第二后避让孔33b也可以不关于对称面O镜像对称。
请参阅图6和图7，两个转动组件10连接于第一支撑板20和第二支撑板30之间，以实现第一支撑板20和第二支撑板30之间的转动连接。具体的，第一转动组件10a连接于第一支撑板20和第二支撑板30的一端，第二转动组件10a连接于第一支撑板20和第二支撑板30的另一端。其中，第一转动组件10a和第二转动组件10b关于对称面O镜像对称。需要说明的是，第二转动组件10b的结构与第一转动组件10a的结构镜像对称，关于第二转动组件10b的结构可参见上文中第一转动组件10a的描述，在此不再赘述。在其他一些实施例中，第一转动组件10a和第二转动组件10b也可以不关于对称面O镜像对称。
请一并参阅图15，图15是图6所示转动机构130沿B-B处剖开的剖面结构示意图。
第一支撑板20固定连接于第一摆臂12的第一摆动部123，第二支撑板30固定连接于第二摆臂13的第二摆动部133。具体的，第一支撑板20固定连接于第一摆动部123的顶面，第二支撑板30固定连接于第二摆动部133的顶面。其中，第一支撑板20的底面与第一摆动部123的顶面接触，第二支撑板30的底面与第二摆动部133的顶面接触。示例性的，第一摆动部123与第一支撑板20之间可通过焊接、铆接或者点胶的方式实现固定连接，第一摆动部123与第二支撑板30之间可通过焊接、铆接或者点胶的方式实现固定连接。
请参阅图6、图16和图17，图16是图6所示转动机构300在第二种状态下的结构示意图，图17是图6所示转动机构300在第三种状态下的结构示意图。
第一摆臂12和第二摆臂13相对固定基座11转动时，分别带动第一支撑板20和第二支撑板30相对固定基座11转动，使得第一支撑板20和第二支撑板30之间相对转动，进而转动机构130在折叠状态和展开状态之间相互切换。具体的，第一摆臂12和第二摆臂13可相对转动至相对设置，带动第一支撑板20和第二支撑板30相对转动至相对折叠，以使转动机构300处于折叠状态，如图17所示。第一摆臂12和第二摆臂13也可相对转动至 相对展开，带动第一支撑板20和第二支撑板30相对转动至相对展开，以使转动机构300处于展开状态，如图6和图16所示。
示例性的，图6所示转动机构300处于展平状态，第一摆动部123和第二摆动部133之间的夹角为β，第一支撑板20和第二支撑板30之间的夹角为β。图16所示转动机构300处于展开状态，图16所示转动机构300为图2所示可折叠终端1000中转动机构的结构示意图，第一摆动部123和第二摆动部133之间的夹角为α，第一支撑板20和第二支撑板30之间的夹角为α。图17所示转动机构300处于折叠状态，图17所示转动机构300为图1所示可折叠终端1000中转动机构的结构示意图，第一摆动部123和第二摆动部133之间的夹角为0度，第一支撑板20和第二支撑板30之间的夹角为0度。此时，第一支撑板20、第二支撑板30和固定基座11围合形成避让空间1302。
请一并参阅图18，图18是图6所示转动机构130的平面结构示意图。
第一支撑板20的第一凸起21在第一摆臂12上的投影位于第一转轴部121，以在第一支撑板20相对固定基座11转动时，防止第一支撑板20与固定基座11之间发生干涉，提高转动机构130的转动流畅性。具体的，第一前凸起21a在第一转动组件10a的第一摆臂12上的投影位于第一转动组件10a的第一转轴部121，第一后凸起21b在第二转动组件10b的第一摆臂12上的投影位于第二转动组件10b的第一转轴部121。需要说明的是，本申请实施例所描述的投影均为正投影。后文中的相关描述可做相同理解。
第一支撑板20的第一缺口22的投影在第二摆臂13上的投影位于第二转轴部131。具体的，第一前缺口22a在第一转动组件10a的第二摆臂13上的投影位于第二转动组件10a的第二转轴部131，第一后缺口22b在第二转动组件10b的第二摆臂13上的投影位于第二转轴部131。
此外，第一支撑板20的第一避让孔23用于避让转动组件10的第一限位件14。具体的，第一避让孔23在第一摆臂12上的投影覆盖第一滑孔123，且覆盖第一限位件14在第一摆臂12上的投影，以在第一支撑板20相对固定基座11转动时，防止第一支撑板20与第一限位件14之间发生干涉，保证转动机构130的转动流畅性。其中，第一前避让孔23a用于避让第一转动组件10a的第一限位件14，第一后避让孔23b用于避让第二转动组件10b的第一限位件14。
第二支撑板30的第二凸起31在第二摆臂13上的投影位于第二转轴部131，以在第二支撑板30相对固定基座11转动时，防止第二支撑板30与第二限位件15之间发生干涉，提高转动机构130的转动流畅性。具体的，第二前凸起31a在第一转动组件10a的第二摆臂13上的投影位于第一转动组件10a的第二转轴部131，第二后凸起31b在第二转动组件10b的第二摆臂13上的投影位于的第二转动组件10b的第二转轴部131。
第二支撑板30的第二缺口32的投影在第一摆臂12上的投影位于第一转轴部121。具体的，第二前缺口32a在第一转动组件10a的第一摆臂12上的投影位于第一转动组件10a的第一转轴部121，第二后缺口32b在第二转动组件10b的第一摆臂12上的投影位于第二转动组件10b的第一转轴部121。
此外，第二支撑板30的第二避让孔33用于避让转动组件10的第二限位件15。具体的，第二避让孔33在第二摆臂13上的投影覆盖第二滑孔122，且覆盖第二限位件15在第 二摆臂13上的投影，以在第二支撑板30相对固定基座11转动时，防止第二支撑板30与第二限位件15之间发生干涉，保证转动机构130的转动流畅性。其中，第二前避让孔33a用于避让第一转动组件10a的第二限位件15，第二后避让孔33b用于避让第二转动组件10b的第二限位件15。
本实施例中，转动机构130处于展平状态时，第一支撑板20与第二支撑板30相互配合。第一支撑板20的顶面2001和第二支撑板3001的顶面形成支撑面1303。具体的，第一支撑板20的两个第一凸起21分别与第二支撑板30的两个第二缺口32相卡合，第二支撑板30的两个第二凸起31分别与第一支撑板20的两个第一缺口22相卡合，以在第一支撑板20和第二支撑板30相对固定基座11转动时，避免第一支撑板20和第二支撑板30与固定基座11之间发生干涉，保证转动机构130的转动流畅性。其中，第一前凸起21a与第二前缺口32a相卡合，第一后凸起21b与第二后缺口32b相卡持，第二前凸起31a与第一前缺口22a相卡合，第二后凸起31b与第一后缺口22b相卡合。需要说明的是，本申请实施例所描述的凸起与缺口相卡合是指，凸起收容于缺口内，且凸起的侧面与缺口的侧壁相抵持。
请参阅图15和图19，图19是图4所示可折叠终端1000中可折叠装置100的局部分解结构示意图。其中，图19所示可折叠装置100中，转动机构130的第一支撑板20未安装于第一壳体110。
可折叠装置100处于展平状态时，转动机构130安装于收容空间1301。部分转动机构130安装于第一壳体110的第一收容槽1101，部分转动机构130安装于第二壳体120的第二收容槽1201。具体的，第一摆臂12固定连接于第一壳体110，第二摆臂13固定连接于第二壳体120。其中，第一摆臂12的第一摆动部123固定连接于第一壳体110，第二摆臂13的第二摆动部133固定连接于第二壳体120。第一壳体110和第二壳体120相对折叠或相对展开时，第一壳体110带动第一摆臂12相对固定基座11转动，第二壳体120带动第二摆臂13相对固定基座11转动。
此时，第一摆动部123的底面与第一台阶1102的台阶面接触，第二摆动部133的底面与第二台阶1202(如图5所示)的台阶面接触。示例性的，第一摆臂12可通过螺钉或者螺栓等方式与第一壳体110固定连接，第二摆臂13可通过螺钉或者螺栓等方式与第二壳体120固定连接。
此时，第一支撑板20和第二支撑板30形成的支撑面1303可支撑显示屏200的可折叠部分230，以保证显示屏230的良好显示。其中，第一支撑板20的顶面与第一壳体110的顶面齐平，第二支撑板30的顶面与第二壳体120的顶面齐平，以使第一支撑板20和第二支撑板30可与第一壳体110和第二壳体120共同支撑显示屏200，实现展平态的可折叠装置100对显示屏200的有效支撑。
请参阅图20，图20是图1所示可折叠终端1000的局部结构示意图。其中，图20所示可折叠终端1000仅示出了转动机构130和显示屏200。
可折叠终端1000处于折叠状态时，显示屏200的可折叠部分230位于转动机构130的内侧。具体的，可折叠部分230位于避让空间1302内。其中，部分可折叠部分230位于第一支撑板20和第二支撑板30之间，且与第一支撑板20和第二支撑板30间隔设置，部分 可折叠部分230位于固定基座11的避让槽119内。此时，转动机构130可避让可折叠部分230弯折时形成的R角，使得可折叠部分230不会出现较大角度弯折，避免显示屏200产生折痕等不良现场，有助于延长显示屏200的使用寿命。
请参阅图21，图21是本申请实施例提供的第二种可折叠终端中转动机构的转动组件10的结构示意图。
本实施例中，转动组件10具有中心轴C，转动组件10关于中心轴C中心对称。转动组件10包括固定基座11、第一摆臂12、第二摆臂13、第一限位件14和第二限位件15。固定基座11设有第一滑槽111和第二滑槽112。第一摆臂12包括第一转轴部121，第一转轴部121设有第一滑孔122。第一转轴部121安装于第一滑槽111，且可相对固定基座11转动。第二摆臂13包括第二转轴部131，第二转轴部131设有第二滑孔132。第二转轴部131安装于第二滑槽112，且可相对固定基座11转动。第一限位件14穿设于第一滑孔122，且固定连接于固定基座11。第二限位件15穿设于第二滑孔132，且固定连接于固定基座11。
其中，第一转轴部121和第二转轴部131相对固定基座11转动的转动方向相反。示例性的，第一转轴部121相对固定基座11沿逆时针方向(图示ω1方向)转动，第二转轴部131相对固定基座11沿顺时针方向(图示ω2方向)转动。此时，第一摆臂12和第二摆臂13相对固定基座11转动以相对折叠。或者，第一转轴部121相对固定基座11沿顺时针方向转动，第二转轴部122相对固定基座11沿逆时针方向转动。此时，第一摆臂12和第二摆臂13相对固定基座11转动以相对展开。
请参阅图22，图22是图21所示转动组件10中固定基座11、第一辅助件16和第二辅助件17的组装结构示意图。
本申请实施例所示转动组件10与上述第一种实施例所示转动组件10的不同之处在于，转动组件10还包括第一辅助件16和第二辅助件17，第一辅助件16和第二辅助件17均固接于固定基座11。其中，第一辅助件16和第二辅助件17关于中心轴C中心对称。示例性的，固定基座11、第一辅助件16和第二辅助件17可一体成型。
第一辅助件16固接于第一滑槽111的槽侧壁，且与第一滑槽111的槽底壁间隔设置。第一辅助件16自第一滑槽111的槽侧壁向固定基座11的前侧面117延伸。其中，第一辅助件16的顶面(图未标)与固定基座11的顶面113齐平，第一辅助件16的前侧面(图未标)与固定基座11的前侧面117齐平。此外，第一辅助件16的左侧面(图未标)为圆弧面。第一辅助件16的左侧面与避让槽119的槽侧壁连接，且与避让槽119的槽侧壁处于同一圆弧面。即，第一辅助件16的左侧面与避让槽119的槽侧壁分别属于同一圆弧面的两个部分。
第一辅助件16还设有第一限位孔161，第一限位孔161的开口位于第一辅助件16的顶面。第一限位孔161自第一辅助件16的顶面向底面(图未标)的方向凹陷，且贯穿第一辅助件16的底面，以与第一滑槽111连通。
在其他一些实施例中，第一辅助件16的顶面也可以位于固定基座11的顶面113与底面114之间。换言之，只要第一辅助件16的顶面不相对固定基座11的顶面113凸出即可，有助于减少转动组件10沿Z轴方向的尺寸，有利于实现转动组件10的轻薄化设计。
第二辅助件17固接于第二滑槽112的槽侧壁，且与第二滑槽112的槽底壁间隔设置。 第二辅助件17自第二滑槽112的槽侧壁向固定基座11的后侧面118延伸。其中，第二辅助件17的顶面(图未标)与固定基座11的顶面113齐平，第二辅助件17的后侧面(图未标)与固定基座11的后侧面118齐平。此外，第二辅助件17的右侧面(图未标)为圆弧面。第二辅助件17的右侧面与避让槽119的槽侧壁连接，且与避让槽119的槽侧壁处于同一圆弧面。即，第二辅助件17的右侧面与避让槽119的槽侧壁分别属于同一圆弧面的两个部分。
第二辅助件17还设有第二限位孔171，第二限位孔171的开口位于第二辅助件17的顶面。第二限位孔171自第二辅助件17的顶面向底面(图未标)的方向凹陷，且贯穿第二辅助件17的底面，以与第二滑槽112连通。
在其他一些实施例中，第二辅助件17的顶面也可以位于固定基座11的顶面113与底面114之间。换言之，只要第二辅助件17的顶面不相对固定基座11的顶面113凸出即可，有助于减少转动组件10沿Z轴方向的尺寸，有利于实现转动组件10的轻薄化设计。
请参阅图21和图23，图23是图21所示转动组件10沿D-D处剖开的剖面结构示意图。
第一摆臂12和第二摆臂13均安装于固定基座11，且相对于中心轴C中心对称。具体的，第一转轴部121安装于第一滑槽111，第一摆动部123相对于第一滑槽111伸出。其中，第一转轴部121位于第一辅助件16和第一滑槽11的槽底壁之间。即，第一辅助件16位于第一转轴部121背离第一滑槽111的槽底壁的一侧。此时，第一转轴部121的底面与第一滑槽111的槽底壁接触，第一转轴部121的顶面与第一辅助件16的底面接触。此外，第一辅助件16的顶面位于第一摆动部123的顶面与第一转轴部121的顶面之间，即，第一辅助件16的顶面不相对于第一摆动部123的顶面凸出，以使第一辅助件16与固定基座11和第一摆臂12复用Z轴方向上空间，以减小转动组件10在Z轴方向上的尺寸，有助于实现转动机构的轻薄化设计。
第二转轴部131安装于第二滑槽112，第二摆动部133相对于第二滑槽112伸出。其中，第二转轴部131位于第二辅助件17和第二滑槽112的槽底壁之间。即，第二辅助件17位于第二转轴部131背离第二滑槽112的一侧。此时，第二转轴部131的底面与第二滑槽112的槽底壁接触，第二转轴部131的顶面与第二辅助件17的底面接触。此外，第二辅助件17的顶面位于第二摆动部133的顶面与第二转轴部131的顶面之间，即，第二辅助件17的顶面不相对于第二摆动部133的顶面凸出，以使第二辅助件17与固定基座11和第二摆臂13复用Z轴方向上的空间，以减小转动组件10在Z轴方向上的尺寸，有助于实现转动机构的轻薄化设计。
第一限位件14还穿设于第一限位孔161。具体的，部分第一限位件14位于第一固定孔(图未标)，部分第一限位件14位于第一滑孔122，部分第一限位件14位于第一限位孔161，部分第一限位件14相对于第一辅助件16的顶面露出。本实施例中，第一限位件14包括依次连接的第一固定部141、第一滑动部142、第一辅助部144和第一限位部143。示例性的，第一固定部141、第一滑动部142、第一辅助部144和第一限位部143可一体成型。
第一固定部141位于第一固定孔11a，且与第一固定孔11a的孔壁固定连接，以实现第一限位件14与固定基座11的固定连接。第一滑动部142位于第一滑孔122。第一辅助部144位于第一限位孔161。示例性的，第一辅助部144可固定连接于第一限位孔161的孔壁， 以实现第一限位件14与第一辅助件16之间的固定连接。第一限位部143相对于第一辅助件16的顶面露出。第一限位部143的底面卡持于第一辅助件16的顶面，以在Z轴方向限位第一转轴部121，提高转动组件10的装配稳定性。
第二限位件15与第一限位件14的结构相同。第二限位件15还穿设于第二限位孔171，且与第一限位件14关于中心轴C中心对称。具体的，部分第二限位件15位于第二固定孔11b，部分第二限位件15位于第二滑孔132，部分第二限位件15位于第二限位孔171，部分第二限位件15相对于第二辅助件17的顶面露出。
本实施例中，第二限位件15包括依次连接的第二固定部、第二滑动部、第二辅助部和第二限位部(图未示)。示例性的，第二固定部、第二滑动部、第二辅助部和第二限位部可一体成型。第二固定部位于第二固定孔11b，且与第二固定孔11b的孔壁固定连接，以实现第二限位件15与固定基座11的固定连接。第一滑动部142位于第二滑孔132。第二辅助部位于第二限位孔171。示例性的，第二辅助部可与第二限位孔171的孔壁固定连接，以实现第二限位件15与第二辅助件17的固定连接。第二限位部相对于第二辅助件17的顶面露出。第二限位部的底面卡持于第二辅助件17的顶面，以在Z轴方向限位第二转轴部131，提高转动组件10的装配稳定性。
需要说明的是，本申请实施例所示可折叠终端的其他结构与上述实施例所示可折叠终端1000的其他结构大体相同，因此本申请实施例所示可折叠终端的其他结构可参见上述实施例所示可折叠终端1000的相关描述，在此不再赘述。
本实施例中，通过增设第一辅助件16和第二辅助件17，增加了第一限位件14和第二限位件15与转动组件10其余部件之间的接触面积，提升了第一限位件14和第二限位件15的限位效果，进而提高了转动组件10各个部件之间的装配稳定性。此外，由于第一辅助件16的左侧面和第二辅助件17的右侧面均与避让槽119的槽侧壁处于同一圆弧面，在可折叠终端处于折叠状态时，第一辅助件16和第二辅助件17可避让显示屏中可折叠部分弯折时形成的R角，减小转动机构对显示屏的影响。
以上，仅为本申请的部分实施例和实施方式，本申请的保护范围不局限于此，任何熟知本领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (12)

  1. 一种转动机构，其特征在于，包括固定基座、第一摆臂、第二摆臂、第一限位件和第二限位件，所述固定基座设有第一滑槽和第二滑槽；
    所述第一摆臂包括第一转轴部，所述第一转轴部安装于所述第一滑槽，且可相对所述固定基座转动，所述第一转轴部设有第一滑孔，所述第一滑孔沿所述第一转轴部的厚度方向贯穿所述第一转轴部；
    所述第二摆臂包括第二转轴部，所述第二转轴部安装于所述第二滑槽，且可相对所述固定基座转动，所述第二转轴部设有第二滑孔，所述第二滑孔沿所述第二转轴部的厚度方向贯穿所述第二转轴部，其中，所述第一转轴部和所述第二转轴部相对所述固定基座转动的转动方向相反；
    所述第一限位件穿设于所述第一滑孔，且固定连接于所述固定基座，所述第一转轴部相对所述固定基座转动时，所述第一限位件沿所述第一滑孔相对所述第一转轴部滑动；
    所述第二限位件穿设于所述第二滑孔，且固定连接于所述固定基座，所述第二转轴部相对所述固定基座转动时，所述第二限位件沿所述第二滑孔相对所述第二转轴部滑动。
  2. 根据权利要求1所述的转动机构，其特征在于，所述第一摆臂还包括与所述第一转轴部固定连接的第一摆动部，所述第一摆动部相对于所述第一滑槽伸出，所述第一限位件的顶面位于所述第一摆动部的顶面和所述第一转轴部的顶面之间；
    所述第二摆臂还包括与所述第二转轴部固定连接的第二摆动部，所述第二摆动部相对于所述第二滑槽伸出，所述第二限位件的顶面位于所述第二摆动部的顶面和所述第二转轴部的顶面之间。
  3. 根据权利要求2所述的转动机构，其特征在于，所述转动机构还包括第一支撑板和第二支撑板，所述第一支撑板固定连接于所述第一摆动部，所述第二支撑板固定连接于所述第二摆动部。
  4. 根据权利要求3所述的转动机构，其特征在于，所述转动机构处于展平状态时，所述第一支撑板的顶面和所述第二支撑板的顶面形成支撑面。
  5. 根据权利要求3或4所述的转动机构，其特征在于，所述转动机构处于折叠状态时，所述第一支撑板、所述第二支撑板和所述固定基座围合形成避让空间。
  6. 根据权利要求3至5中任一项所述的转动机构，其特征在于，所述第一支撑板设有第一避让孔，所述第一避让孔沿所述第一支撑板的厚度方向贯穿所述第一支撑板，用于避让所述第一限位件；
    所述第二支撑板设有第二避让孔，所述第二避让孔沿所述第二支撑板的厚度方向贯穿所述第二支撑板，用于避让所述第二限位件。
  7. 根据权利要求3至6中任一项所述的转动机构，其特征在于，所述转动机构处于展平状态时，沿X轴方向上，所述第一转轴部和所述第二转轴部重叠排布。
  8. 根据权利要求7所述的转动机构，其特征在于，所述第一支撑板设有第一凸起和第一缺口，所述第一凸起连接于所述第一支撑板朝向所述第二支撑板的表面，所述第一凸起在所述第一摆臂上的投影位于所述第一转轴部，所述第一缺口的开口位于所述第一支撑板朝向所述第二支撑板的表面，所述第一缺口的开口在所述第二摆臂上的投影位于所述第二转轴部；
    所述第二支撑板设有第二凸起和第二缺口，所述第二凸起连接于所述第二支撑板朝向所述第一支撑板的表面，所述第二凸起在所述第二摆臂上的投影位于所述第二转轴部，所述第二缺口的开口位于所述第二支撑板朝向所述第一支撑板的表面，所述第二缺口在所述第一摆臂上的投影位于所述第一转轴部；
    所述转动机构处于展平状态时，所述第一凸起与所述第二缺口相卡合，所述第二凸起与所述第一缺口相卡合。
  9. 根据权利要求1至8中任一项所述的转动机构，其特征在于，所述转动机构还包括第一辅助件和第二辅助件，所述第一辅助件位于所述第一转轴部背离所述第一滑槽的槽底壁的一侧，且固定连接于所述固定基座，所述第一辅助体设有与所述第一滑槽连通的第一限位孔，所述第一限位件还穿设于所述第一限位孔；
    所述第二辅助件位于所述第二转轴部背离所述第二滑槽的槽底壁的一侧，且固接于所述固定基座，所述第二辅助件设有与所述第二滑槽连通的第二限位孔，所述第二限位件还穿设于所述第二限位孔。
  10. 根据权利要求1至9中任一项所述的转动机构，其特征在于，所述转动机构包括两个转动组件，两个所述转动组件沿Y轴方向间隔排布，每一所述转动组件均包括所述固定基座、所述第一摆臂、所述第二摆臂、所述第一限位件和所述第二限位件。
  11. 一种可折叠终端，其特征在于，包括第一壳体、第二壳体和如权利要求1至10中任一项所述的转动机构，所述第一壳体固定连接于所述第一摆臂，所述第二壳体固定连接于所述第二摆臂。
  12. 根据权利要求11所述的可折叠终端，其特征在于，所述可折叠终端还包括显示屏，所述显示屏包括第一显示部分、第二显示部分及可折叠部分，所述可折叠部分连接于所述第一显示部分和所述第二显示部分之间，所述第一显示部分安装于所述第一壳体，所述第二显示部分安装于所述第二壳体，所述可折叠部分与所述转动机构相对设置。
PCT/CN2022/093920 2021-08-20 2022-05-19 转动机构和可折叠终端 WO2023020053A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US18/004,000 US20240098164A1 (en) 2021-08-20 2022-05-19 Rotation Mechanism and Foldable Terminal
EP22826584.9A EP4184023A4 (en) 2021-08-20 2022-05-19 ROTATION MECHANISM AND FOLDABLE TERMINAL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110961388.1A CN114500699B (zh) 2021-08-20 2021-08-20 转动机构和可折叠终端
CN202110961388.1 2021-08-20

Publications (2)

Publication Number Publication Date
WO2023020053A1 true WO2023020053A1 (zh) 2023-02-23
WO2023020053A9 WO2023020053A9 (zh) 2023-05-11

Family

ID=81491752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/093920 WO2023020053A1 (zh) 2021-08-20 2022-05-19 转动机构和可折叠终端

Country Status (4)

Country Link
US (1) US20240098164A1 (zh)
EP (1) EP4184023A4 (zh)
CN (1) CN114500699B (zh)
WO (1) WO2023020053A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114500699B (zh) * 2021-08-20 2023-03-07 荣耀终端有限公司 转动机构和可折叠终端
CN117780773A (zh) * 2022-09-27 2024-03-29 荣耀终端有限公司 一种转轴组件及终端设备
CN115653997A (zh) * 2022-10-24 2023-01-31 维沃移动通信有限公司 转轴机构和电子设备
CN116658512B (zh) * 2022-10-27 2024-03-29 荣耀终端有限公司 转动机构和可折叠电子设备
CN219087161U (zh) * 2022-11-15 2023-05-26 荣耀终端有限公司 一种转动机构及可折叠的电子设备
CN117119086B (zh) * 2023-01-18 2024-06-07 荣耀终端有限公司 可折叠机构和可折叠终端
CN116480680B (zh) * 2023-03-20 2024-04-16 荣耀终端有限公司 折叠机构及可折叠移动终端
CN117128235A (zh) * 2023-03-22 2023-11-28 荣耀终端有限公司 铰链组件及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451112A (zh) * 2018-11-30 2019-03-08 维沃移动通信有限公司 转动连接组件及折叠式移动终端
CN210867803U (zh) * 2020-02-11 2020-06-26 Oppo广东移动通信有限公司 转轴组件、可折叠壳体组件及可折叠电子设备
CN111614806A (zh) * 2020-04-15 2020-09-01 华为技术有限公司 折叠装置及电子设备
CN211423150U (zh) * 2020-01-13 2020-09-04 Oppo广东移动通信有限公司 转轴组件及电子设备
US20200383217A1 (en) * 2019-06-03 2020-12-03 Samsung Display Co., Ltd. Foldable display device
CN114500699A (zh) * 2021-08-20 2022-05-13 荣耀终端有限公司 转动机构和可折叠终端

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206112430U (zh) * 2016-11-01 2017-04-19 京东方科技集团股份有限公司 一种折叠式柔性屏的支撑装置和显示装置
CN106873717B (zh) * 2017-02-06 2019-11-26 武汉华星光电技术有限公司 柔性显示模组及具有该柔性显示模组的电子装置
CN206918043U (zh) * 2017-04-19 2018-01-23 广东欧珀移动通信有限公司 转轴组件及可折叠终端
WO2019173950A1 (zh) * 2018-03-12 2019-09-19 深圳市柔宇科技有限公司 铰链装置及柔性显示装置
CN208421695U (zh) * 2018-07-13 2019-01-22 Oppo广东移动通信有限公司 电子设备
CN111615277B (zh) * 2019-02-25 2021-11-05 Oppo广东移动通信有限公司 转动装置、壳体及电子装置
WO2020209697A1 (en) * 2019-04-12 2020-10-15 Samsung Electronics Co., Ltd. Foldable electronic device
CN113067924B (zh) * 2021-03-19 2023-05-23 维沃移动通信有限公司 折叠机构、支架结构和电子设备
CN113067925B (zh) * 2021-03-19 2023-12-01 维沃移动通信有限公司 折叠机构、支架结构和电子设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451112A (zh) * 2018-11-30 2019-03-08 维沃移动通信有限公司 转动连接组件及折叠式移动终端
US20200383217A1 (en) * 2019-06-03 2020-12-03 Samsung Display Co., Ltd. Foldable display device
CN211423150U (zh) * 2020-01-13 2020-09-04 Oppo广东移动通信有限公司 转轴组件及电子设备
CN210867803U (zh) * 2020-02-11 2020-06-26 Oppo广东移动通信有限公司 转轴组件、可折叠壳体组件及可折叠电子设备
CN111614806A (zh) * 2020-04-15 2020-09-01 华为技术有限公司 折叠装置及电子设备
CN114500699A (zh) * 2021-08-20 2022-05-13 荣耀终端有限公司 转动机构和可折叠终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4184023A4

Also Published As

Publication number Publication date
CN114500699B (zh) 2023-03-07
CN114500699A (zh) 2022-05-13
EP4184023A8 (en) 2023-07-26
US20240098164A1 (en) 2024-03-21
EP4184023A4 (en) 2024-03-13
WO2023020053A9 (zh) 2023-05-11
EP4184023A1 (en) 2023-05-24

Similar Documents

Publication Publication Date Title
WO2023020053A1 (zh) 转动机构和可折叠终端
US20240040723A1 (en) Foldable display device
WO2022194142A1 (zh) 折叠机构及电子设备
US20120149438A1 (en) Mobile phone of folding type and hinge device of the same
WO2022247565A1 (zh) 一种转动机构、支撑装置和电子设备
US7624477B2 (en) Rotation hinge
JP5944095B2 (ja) 開閉装置
JP2011119830A5 (zh)
WO2022057538A1 (zh) 转轴机构及可折叠电子设备
JP2011119830A (ja) 折畳み式携帯端末
JP2011119831A5 (zh)
JP2011119831A (ja) 折畳み式携帯端末
WO2023093226A1 (zh) 折叠机构及终端设备
WO2023093215A1 (zh) 转动机构和可折叠终端
WO2023109198A1 (zh) 转轴组件及电子设备
WO2021196916A1 (zh) 电子设备
EP4142267A1 (en) Support structure, screen assembly and electronic device
WO2022068390A1 (zh) 移动终端及其折叠壳体
JP2008079093A (ja) 電子機器
TWM575953U (zh) Bending mechanism and flexible screen display device
US20240129389A1 (en) Foldable Mechanism and Foldable Terminal
WO2023207802A1 (zh) 显示装置
US20230240029A1 (en) Foldable display device and supporting assembly thereof
US11960328B2 (en) Liquid crystal display panel and alignment method thereof
US10296048B1 (en) Portable electronic device with dual displays and a hinge structure

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 18004000

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2022826584

Country of ref document: EP

Effective date: 20221228

NENP Non-entry into the national phase

Ref country code: DE