WO2023093226A1 - 折叠机构及终端设备 - Google Patents

折叠机构及终端设备 Download PDF

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Publication number
WO2023093226A1
WO2023093226A1 PCT/CN2022/118815 CN2022118815W WO2023093226A1 WO 2023093226 A1 WO2023093226 A1 WO 2023093226A1 CN 2022118815 W CN2022118815 W CN 2022118815W WO 2023093226 A1 WO2023093226 A1 WO 2023093226A1
Authority
WO
WIPO (PCT)
Prior art keywords
swing arm
rotating
fixing plate
folding mechanism
mechanism according
Prior art date
Application number
PCT/CN2022/118815
Other languages
English (en)
French (fr)
Inventor
张伟
封蕾
姚文星
魏亚蒙
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 EP22844419.6A priority Critical patent/EP4215767A4/en
Publication of WO2023093226A1 publication Critical patent/WO2023093226A1/zh

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • 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
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the technical field of terminals, in particular to a folding mechanism and a terminal device.
  • the foldable mobile phone includes a shell, a folding mechanism and a flexible screen.
  • the folding mechanism includes a rotating arm, a lifting door and a spring. The surface is kept flat, so that the flexible screen can be supported by the lifting door panel and the rotating arm; during the folding process of the foldable mobile phone, the rotating arm compresses the spring, and the spring drives the lifting door panel fixed to it to descend, thereby avoiding the flexible screen when it is folded. rounded corners.
  • the spring and the rotating arm are mainly used in the related art to lower the lifting door panel, but the spring still needs to occupy a certain space when it is compressed to the maximum compression amount, and the axial direction of the spring is the same as the thickness direction of the foldable mobile phone. Therefore, this This will cause the folding mechanism to occupy a larger space in the thickness direction of the foldable mobile phone.
  • the present application provides a folding mechanism and a terminal device, which can reduce the occupied space of the folding mechanism in the thickness direction of the foldable mobile phone.
  • the application provides a folding mechanism, including: a base; a support body, the support body is connected to the base, the support body can move toward or away from the base, and the support body is provided with a first slot and a second slot corresponding to the position;
  • the first pendulum arm, the first swing arm includes a first rotating part and a first rotating body fixed on the first rotating part, the first rotating part is rotatably connected to the base, and part of the first rotating body extends into the first In the slot, the first rotating body is configured to provide a force for the supporting body during the rotating process, so that the supporting body moves toward or away from the base;
  • the second swing arm, the second swing arm includes a second rotating part and is fixed on the first The second rotating body on the two rotating parts, the second rotating part is rotatably connected to the base, part of the second rotating body extends into the second groove, and the second rotating body is configured to, during the rotation, Provides a force to the support to move the support toward or away from the base.
  • the first swing arm and the second swing arm can be folded or unfolded, and during the unfolding process of the first swing arm and the second swing arm, the first swing arm and the second swing arm can provide force for the supporting body , so that the support moves away from the base, that is, the support can rise.
  • the support body together with the first swing arm and the second swing arm, can provide support for the flexible screen.
  • the first swing arm and the second swing arm can provide force for the support body, so that the support body moves toward the base, that is to say, the support body can descend to avoid The rounded corners produced when the flexible screen is bent.
  • the folding mechanism of the present application does not need to use a spring, and there is no need to reserve the space required for the spring to be compressed to the limit. That is to say, the embodiment of the present application can save space in the thickness direction of the folding mechanism, thereby further reducing The thickness of the end device.
  • the first rotating body can provide the support body with a vertical edge.
  • the limit in the thickness direction of the device limits the displacement of the support body in the thickness direction, thereby reducing the damage to the flexible screen or other components of the terminal device caused by the large displacement of the support body.
  • the support body includes a first fixed plate and a second fixed plate oppositely arranged, and a third fixed plate connected between the first fixed plate and the second fixed plate, and the third fixed plate connects the first
  • the space between the fixing plate and the second fixing plate is divided into a first groove and a second groove.
  • the supporting body can be integrally formed or welded with the first fixing plate, the second fixing plate and the third fixing plate.
  • the structure of the support body is relatively simple.
  • the second fixing plate is closer to the base than the first fixing plate, the second fixing plate is closer to the base than the first fixing plate, and the size of the second fixing plate along the first direction greater than the dimension of the first fixing plate along the first direction, the first direction being the arrangement direction of the first swing arm and the second swing arm.
  • the first fixing plate can provide enough space for the rotation of the first rotating body, preventing the first fixing plate from interfering with the first swing arm.
  • the first fixing plate has a first surface facing the second fixing plate;
  • the first rotating body includes a first action surface, and when the first swing arm and the second swing arm are in a flattened state, the first rotating body An active surface abuts against the first surface. In this way, in the process of unfolding the first swing arm and the second swing arm and when the first swing arm and the second swing arm are in a flattened state, the first acting surface can always provide acting force for the first surface.
  • the second fixed plate has a second surface facing the first fixed plate;
  • the first rotating body further includes a second active surface connected to the first active surface, and the first swing arm and the second swing During the folding process of the arm, the second active surface interacts with the second surface.
  • the second acting surface can provide an acting force for the second surface, so that the supporting body moves toward the base.
  • the first active surface includes a first plane.
  • the first acting surface needs to continuously provide an acting force for the first surface, and when the first acting surface When a plane is included, the plane can provide a force for the first surface, so that the first rotating body can provide relatively stable support for the supporting body.
  • the second action surface includes a second plane
  • the second plane is connected to the first action surface, and when the first swing arm and the second swing arm are in a folded state, the second plane abuts against the second surface catch. In this way, when the first swing arm and the second swing arm are in the folded state, the second plane can provide force to the second surface, so that the first rotating body can provide relatively stable support for the supporting body.
  • the second acting surface further includes a first arc surface connected to the second plane and protruding outward.
  • the first arcuate surface interacts with the second surface, thereby reducing the bumps caused by the uneven surface during the movement of the support body, that is, That is, it can make the support body move smoothly.
  • the second acting surface further includes a third plane connected to the first arc surface, and the third plane is also used when the first swing arm and the second swing arm are in a flattened state, A portion abuts against the second surface. In this way, the third plane can provide stable support for the supporting body.
  • the first acting surface and the second acting surface are connected to form a second arc surface, and when the first swing arm and the second swing arm are folded, the second arc surface interacts with the second surface; During the unfolding process of the first swing arm and the second swing arm, the second arcuate surface interacts with the first surface. In this way, in the process of unfolding the first swing arm and the second swing arm, the second arcuate surface always interacts with the first surface; in the process of folding the first swing arm and the second swing arm, the second arcuate surface also always interact with the second surface.
  • the arc surface has the characteristic of smooth surface, therefore, it can make the movement of the supporting body more stable.
  • the first rotating body includes a connecting piece and a fixing piece fixed on the connecting piece, at least part of the fixing piece extends into the first groove, and the fixing piece is used for supporting The body provides a force toward or away from the base.
  • the fixing member can always provide an active force for the support body, so that the support body moves away from or toward the base.
  • the connecting part is located on a side of the support body, and the fixing part is disposed toward the side, where the side is a surface adjacent to the side where the first swing arm is located.
  • the fixing piece can extend into the first slot from the side.
  • the first side surface of the first rotating part is provided with a first cutout, a part of the first rotating body extends into the first cutout, and the first side surface is between the first swing arm and the second When the two swing arms are in a flattened state, the surfaces of the first rotating part and the second rotating part are opposite. In this way, the lateral dimension of the first swing arm can be reduced. Since the transverse direction of the first swing arm is the same as the width direction of the terminal device, the size of the folding assembly along the width direction of the terminal device can be further reduced. In addition, the dimension of the first rotating body in the width direction of the terminal device can be increased, thereby improving the strength of the first rotating body.
  • the first cutout has two opposite side walls, and the first rotating body is fixed on the two side walls.
  • the fixing structure of the first rotating body on the first rotating part is relatively simple.
  • the first fixing plate includes a fixing body and a protrusion fixed on one side of the fixing body, and a part of the protrusion extends into the first cutout.
  • the size of the support body along the width direction of the terminal device can be further increased, and the size of the entire folding mechanism along the width direction of the terminal device can be reduced.
  • the support body is provided with the first groove and the second groove, the above-mentioned structure can improve the strength of the support body to a certain extent, and reduce the problem of the first groove and the second groove caused by the small size of the support body along the width direction of the terminal equipment.
  • the thickness of the third connecting plate between them is relatively small, which leads to the occurrence of cracks in the supporting body when stressed.
  • a first through hole is provided on the second side surface of the first rotating part, the second side surface is adjacent to the first side surface, and the first cutout communicates with the first through hole; the first rotating part
  • the body also has a connection surface facing the first through hole, and the projection of the connection surface on the side wall is in contact with or has a gap between the projected edges of the first through hole on the side wall.
  • the projection of the connection surface on the side wall is the same as the projection of the first through hole on the side wall.
  • the edges are in contact or have gaps, which can make the assembly more convenient.
  • the size of the first rotating body along the width direction of the terminal device can be further increased, so the strength of the first rotating body can be improved.
  • first rotating bodies and multiple first slots there are at least two first rotating bodies in one-to-one correspondence with the two first slots; and/or, the first There are multiple second rotating bodies and multiple second slots, and there are at least two second rotating bodies in one-to-one correspondence with the two second slots.
  • first rotating bodies can provide a more stable force for the supporting body, thereby making the movement of the supporting body more stable.
  • the plurality of second rotating bodies can also provide a more stable force for the supporting body, thereby making the movement of the supporting body more stable.
  • the folding mechanism further includes a third swing arm, the third swing arm is slidably connected to the base along an arc surface, the third swing arm is arranged along the second direction with the first swing arm, and The third swing arm is connected to the first swing arm, so that the third swing arm moves relative to the base in a synchronous manner with the first swing arm; and/or, the folding mechanism further includes a fourth swing arm, and the fourth swing arm can move along the The arc surface is slidably connected to the base; the fourth swing arm and the second swing arm are arranged along the second direction, and the fourth swing arm is connected with the second swing arm so that the fourth swing arm is synchronized with the second swing arm
  • the ground way moves relative to the base; the second direction is perpendicular to the moving direction of the supporting body and the first direction.
  • the first swing arm and the third swing arm, as well as the second swing arm and the fourth swing arm can jointly provide support for the flexible screen, thereby increasing the supporting area of the folding mechanism for the flexible screen, thereby further improving the flexibility of the flexible screen. Support strength.
  • the flexible screen can always maintain a relatively high performance when the terminal device is folded or unfolded. High flatness, which can improve the service life of the flexible screen.
  • the surface of the third swing arm facing the first swing arm is provided with a first sliding slot;
  • the first swing arm also includes a third rotating portion fixed on the first rotating portion and rotatably
  • the first connecting shaft is connected to the third rotating part in a manner, and a part of the first connecting shaft extends into the first slide groove. In this way, when the first swing arm rotates around the first rotating shaft, the third rotating part can drive the third swing arm through the first connecting shaft, so that the third swing arm always rotates synchronously with the first swing arm.
  • the surface of the fourth swing arm facing the second swing arm is provided with a second sliding groove;
  • the second swing arm also includes a fourth rotating portion fixed on the second rotating portion and rotatably The second connection shaft connected to the fourth rotating part in a manner, and a part of the second connection shaft extends into the second slide groove.
  • the second swing arm can be connected to the base through a second rotating shaft (another rotating shaft parallel to the first rotating shaft).
  • the fourth rotating part can be driven by the second connecting shaft.
  • the fourth swing arm so that the fourth swing arm always keeps rotating synchronously with the second swing arm.
  • the first swing arm and the second swing arm are symmetrical to the center plane of the support body, and the center plane is a plane located at the geometric center of the support body and perpendicular to the first direction. In this way, the supporting points provided by the first swing arm and the second swing arm correspond to each other, thereby further improving the movement stability of the support body.
  • the present application provides a terminal device, including any one of the above-mentioned folding mechanisms.
  • the terminal device can realize all the effects of the above-mentioned folding mechanism.
  • Figure 1a is a schematic structural diagram of a foldable mobile phone in a half-folded state provided by an embodiment of the present application
  • Fig. 1b is a schematic structural diagram of a foldable mobile phone in a flattened state provided by the embodiment of the present application;
  • Fig. 2 is a schematic diagram of the assembly structure of the housing and the folding mechanism provided by the embodiment of the present application;
  • Fig. 3 is a schematic structural diagram of the folding mechanism provided by the embodiment of the present application.
  • Fig. 4 is a schematic diagram of a disassembled structure of the folding mechanism shown in Fig. 3;
  • Fig. 5 is a partial structural schematic diagram of the base in the folding mechanism shown in Fig. 3;
  • Fig. 6a is a schematic perspective view of the first rotating shaft in the folding mechanism shown in Fig. 3;
  • Fig. 6b is a side view of the first rotating shaft shown in Fig. 6a;
  • Fig. 7 is a schematic diagram of the disassembled structure of the support body and the base in the folding mechanism shown in Fig. 3;
  • Fig. 8 is a schematic diagram of the assembly structure of the support body and the torsion swing arm in the folding mechanism shown in Fig. 3;
  • Fig. 9 is a schematic perspective view of the three-dimensional structure of the torsion swing arm in the folding mechanism shown in Fig. 3;
  • Fig. 10a is a sectional view of the torsion swing arm shown in Fig. 9 along the BB direction;
  • Fig. 10b is a partially enlarged schematic diagram of the position C of the torsion swing arm shown in Fig. 10a;
  • Fig. 11a is a cross-sectional view along AA direction of the folding mechanism shown in Fig. 3;
  • Fig. 11b is a partially enlarged schematic diagram at D in the sectional view shown in Fig. 11a;
  • Fig. 11c is a structural schematic diagram of the folding mechanism shown in Fig. 3 when the folding angle is 100°;
  • Fig. 11d is a partially enlarged schematic diagram at H in the structural schematic diagram shown in Fig. 11c;
  • Fig. 11e is a structural schematic diagram of the folding mechanism shown in Fig. 3 in a folded state
  • Fig. 11f is a partially enlarged schematic diagram of I in the structural schematic diagram shown in Fig. 11e;
  • Fig. 12 is another structural schematic diagram of the folding mechanism shown in Fig. 3 in a folded state
  • Fig. 13 is a partially enlarged schematic diagram of a torsion swing arm in another embodiment of the present application.
  • Fig. 14a is another embodiment of the present application, a structural schematic diagram of the folding mechanism in a flattened state
  • Fig. 14b is another embodiment of the present application, a structural schematic diagram of the folding structure when the folding angle is 100°;
  • Fig. 15a is a structural schematic diagram of a folding mechanism in another embodiment of the present application.
  • Fig. 15b is a partially enlarged schematic diagram of the folding mechanism shown in Fig. 15a;
  • Fig. 16 is a schematic structural view of a support body in yet another embodiment
  • Fig. 17 is a schematic structural diagram of a torsion swing arm in another embodiment
  • Fig. 18 is a structural schematic view of a folded structure in a flattened state in another embodiment.
  • Icons 10-housing; 11-through slot; 20-folding mechanism; 21-base; 211-bottom plate; Bottom wall of card slot; 212-mounting seat; 213-blocking part; 214-positioning part; 22-main swing arm; 221-arm plate; 222-first clamping part; Part; 223-second clamping part; 2231-chute; 23-synchronization mechanism; 231-gear; 232-first rotating shaft; 2321-rotating shaft cutout; 233-second rotating shaft; Plate; 2411-fixed body; 2412-protrusion; 2413-lower surface; 242-lower fixed plate; 2421-upper surface; 243-vertical fixed plate; 2431-positioning hole; Cavity; 246-groove; 25-torsion swing arm; 251-first rotating part; 2511-first through hole; 2512-rotating part cutout; 2513-first side surface; 2514-second side surface; Wall; 252-rotating body; 2521-first action surface; 2522-second action surface; 25
  • first and second in the description and claims of the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order of objects.
  • first target object, the second target object, etc. are used to distinguish different target objects, rather than describing a specific order of the target objects.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner.
  • multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.
  • An embodiment of the present application provides a folding mechanism, which can be applied to a foldable mobile phone.
  • the folding mechanism can also be applied to terminal devices with a folding function such as foldable tablet computers, foldable game consoles, and foldable personal digital assistants (Personal digital assistant, PDA).
  • PDA Personal digital assistant
  • the foldable mobile phone can be folded along its center.
  • the foldable mobile phone is in the folded state, that is, the folding angle of the foldable mobile phone is 0, the size of the foldable mobile phone can be reduced;
  • the foldable mobile phone is in the unfolded state, that is, the folding angle of the foldable mobile phone is 180°, and the flexible screen 30 is in the state of the largest display area, at this time the user can operate on the flexible screen 30 .
  • the folding angle refers to the angle between the left and right parts of the foldable mobile phone.
  • three directions can be defined, namely the longitudinal direction E (the second direction) of the foldable mobile phone, and the width direction F (the second direction) of the foldable mobile phone.
  • the foldable mobile phone includes a housing 10, a folding mechanism 20 and a flexible screen 30 (not shown in Figure 2), one side surface of the housing 10 is provided with a through groove 11, and the folding mechanism 20 is connected to the through groove within 11.
  • the flexible screen 30 is fixed on one side surface of the casing 10 where the through groove 11 is provided.
  • the folding mechanism 20 includes: a base 21 , two main swing arms 22 , a synchronization mechanism 23 , a support body 24 and two torsion swing arms 25 .
  • the two folding mechanisms 20 are respectively provided at two ends of the casing 10 .
  • the number of folding mechanisms 20 may be one, three or more. When the number of folding mechanisms 20 is one, one folding mechanism 20 may be arranged in the middle of the base 21 along the length direction E ; When there are multiple folding mechanisms 20, the multiple folding mechanisms 20 can be evenly distributed along the length direction E.
  • the base 21 includes a bottom plate 211 , a mounting base 212 , a blocking portion 213 and a positioning portion 214 .
  • the bottom plate 211 is fixed in the through slot 11 of the casing 10 .
  • the bottom plate 211 has a receiving groove 2111 , and the bottom wall 2113 of the receiving groove 2111 is a plane.
  • the mounting seat 212 is fixed in the receiving groove 2111 .
  • a side of the mounting base 212 away from the bottom plate 211 is provided with a bottom plate locking groove 2112 .
  • a blocking portion 213 is provided on two opposite side walls 2114 of the bottom plate slot 2112 , there is a gap between the two blocking portions 213 , and there is also a gap between the bottom wall 2115 of the slot and the blocking portion 213 .
  • the surface of the blocking portion 213 facing the bottom wall 2115 of the slot is an arc surface.
  • the number of bottom plate slots 2112 can be two, and the two bottom plate slots 2112 are arranged in a staggered manner on the base 21 .
  • the positioning portion 214 is fixed on the bottom wall 2113 of the base 21 , and the projection shape of the positioning portion 214 on the bottom wall 2113 may be circular. In other embodiments of the present application, the projection of the positioning portion 214 on the bottom wall 2113 may also be in the shape of a square or a rectangle.
  • the number of positioning parts 214 may be one. In other embodiments of the present application, the number of positioning parts 214 may also be multiple. When there are multiple positioning portions 214, the multiple positioning portions 214 may be arranged in a straight line, in a triangle, or in a rectangle.
  • two main swing arms 22 are arranged side by side along the width direction F, and both main swing arms 22 are connected to the base 21 in a rotatable manner.
  • the main swing arm 22 includes an arm plate 221 , a first clamping portion 222 and a second clamping portion 223 , and both the first clamping portion 222 and the second clamping portion 223 are fixed on the arm plate 221 toward the base. 21 side.
  • the surface of the first clamping portion 222 facing the base 21 is an arc surface, and the two end faces of the first clamping portion 222 extend inwardly with a clamping portion clamping groove 2221 , and the first clamping portion A protruding portion 2223 is formed on the 222, and the protruding portion 2223 can be accommodated in the slot 2112 of the bottom plate.
  • the surface of the protruding portion 2223 facing the arm plate 221 is an arc surface.
  • the blocking portion 213 of the base 21 can be accommodated in the locking slot 2221 , and the surface of the protruding portion 2223 facing the arm plate 221 abuts against the surface of the blocking portion 213 facing the bottom wall 2115 of the slot.
  • the main swing arm 22 can be connected to the base 21 through the protruding part 2223 . Since the surface of the blocking portion 213 facing the bottom wall 2115 of the card slot and the surface of the protruding part 2223 facing the arm plate 221 are arc-shaped, the main swing arm 22 will move along the blocking portion 213 when the foldable mobile phone is folded or unfolded. arc surface movement.
  • one end of the second clamping portion 223 is extended inwardly with a chute 2231 that penetrates to the other end.
  • both ends are semicircles, and the semicircles at both ends are adjacent to the two opposite sides of the rectangle.
  • the synchronization mechanism 23 includes four gears 231, two first rotating shafts 232 and two second rotating shafts 233, the four gears 231 are arranged in sequence along the width direction F of the foldable mobile phone, and the four gears 231 Every adjacent two gears 231 are in mesh with each other.
  • the two gears 231 in the middle may be slightly lower than the two gears 231 in the edge.
  • the dimensions of the four gears 231 are all the same, so that when the foldable mobile phone is folded or unfolded, the four gears 231 can always keep rotating synchronously during the rotation process.
  • the two first rotating shafts 232 are parallel to each other and are both rotatably connected to the base 21 .
  • the two gears 231 on the edge are fixed on the two first rotating shafts 232 respectively. , that is, one gear 231 of the two gears 231 located on the edge is fixed on a first rotating shaft 232 , and the other gear 231 is fixed on the other first rotating shaft 232 .
  • the number of shaft cutouts 2321 may be two, and the two shaft cutouts 2321 are uniformly arranged along the circumference of the first shaft 232 . In other embodiments of the present application, the number of shaft cutouts 2321 may be one, or three.
  • first rotating shafts 232 in each folding mechanism 20 can be fixed to each other.
  • multiple first rotating shafts 232 can be used as an integrated structure, so that the synchronization mechanisms 23 of each folding mechanism 20 can be rotated synchronously as much as possible, thereby increasing the stability of the folding process of the foldable mobile phone.
  • the two second rotating shafts 233 are both rotatably connected to the base 21 , as shown in FIG. 4 , among the four gears 231 , the two middle gears 231 are respectively fixed on the two second rotating shafts 233 . That is, one gear 231 of the two middle gears 231 is fixed on a second rotating shaft 233 , and the other gear 231 is fixed on the other second rotating shaft 233 .
  • the length of the second shaft 233 is smaller than the length of the first shaft 232 .
  • the supporting body 24 is connected to the base 21 .
  • the supporting body 24 includes an upper fixing plate 241 , a lower fixing plate 242 and a vertical fixing plate 243 .
  • the upper fixed plate 241 and the lower fixed plate 242 are parallel to each other, the vertical fixed plate 243 is fixed between the upper fixed plate 241 and the lower fixed plate 242, and the vertical fixed plate 243 is perpendicular to the upper fixed plate 241 and the lower fixed plate 242.
  • the support body 24 can be formed by welding the upper fixing plate 241, the lower fixing plate 242 and the vertical fixing plate 243, and the vertical fixing plate 243 can connect the upper fixing plate 241 and the lower fixing plate 242 The space between them is divided into two grooves 246; the support body 24 can also be made by casting, and then the grooves 246 are respectively processed on two opposite sides of the support body 24 (as shown in FIG. 7 ).
  • the surface shape of the upper fixing plate 241 may be in the shape of a “cross”.
  • the upper fixing plate 241 includes a fixing body 2411 and two protrusions 2412 respectively located on both sides of the fixing body 2411 .
  • the outer shape of the lower fixing plate 242 may be a cuboid, and the lower fixing plate 242 is closer to the base 21 than the upper fixing plate 241 .
  • the dimension of the lower fixing plate 242 along the width direction F may be larger than the dimension of the length direction E.
  • the size of the lower fixing plate 242 along the length direction E can be smaller than that of the upper fixing plate 241 along the length direction E. In this way, the weight of the lower fixing plate 242 can be reduced, thereby reducing the weight of the foldable mobile phone.
  • the size of the vertical fixing plate 243 along the longitudinal direction E of the foldable mobile phone can be less than or equal to the size of the upper fixing plate 241 along the longitudinal direction E of the foldable mobile phone, so that the upper fixing plate 241 and the lower fixing plate 242 are satisfied.
  • the weight of the vertical fixing plate 243 can also be reduced as much as possible.
  • the lower fixing plate 242 is provided with a positioning hole 2431, and the positioning part 214 of the base 21 can be located in the positioning hole 2431. In this way, after the support body 24 is connected to the base 21, it can move along the thickness direction of the foldable mobile phone. Gswipe.
  • the positioning part 214 can provide lateral positioning for the support body 24, so as to reduce excessive lateral displacement of the support body 24 during the folding or unfolding process of the foldable mobile phone.
  • the positioning hole 2431 is adapted to the positioning portion 214, that is, the shape of the positioning hole 2431 can be the same as the cross-sectional shape of the positioning portion 214.
  • the cross-sectional shape of the positioning portion 214 is circular
  • the positioning hole 2431 is also a circular hole.
  • the matching relationship between the positioning portion 214 and the positioning hole 2431 may be a clearance fit.
  • the cross-sectional shape of the positioning portion 214 is a plane shape taken along a cross-sectional plane perpendicular to the thickness direction G of the foldable mobile phone.
  • the number of positioning holes 2431 is the same as the number of positioning portions 214 , and the installation positions correspond to each other.
  • the number of positioning holes 2431 is also one. Since the size of the lower fixing plate 242 in the longitudinal direction E of the foldable mobile phone is relatively small in the embodiment of the present application, only one set of positioning holes is provided.
  • the lateral positioning function of the support body 24 can be realized by using the portion 214 and the positioning hole 2431 .
  • the number of the positioning portion 214 and the positioning hole 2431 can be multiple, and the plurality of positioning holes 2431 can also be arranged in a triangular, rectangular, etc. shape, which can further improve the alignment of the positioning portion 214.
  • the role of the lateral positioning of the support body 24 is the same as the number of positioning portions 214 , and the installation positions correspond to each other.
  • the number of positioning holes 2431 is also one. Since the size of the lower fixing plate 242 in the longitudinal direction E of the foldable mobile phone is relatively small in the embodiment of the present application, only
  • two torsion swing arms 25 are arranged along the width direction F of the foldable mobile phone.
  • the torsion swing arm 25 includes a first rotating part 251, a rotating body 252, a second rotating part 253, a connecting plate 254 and a connecting shaft 255, wherein the connecting plate 254 is fixed on the first rotating part 251 and the second rotating part 253. Between the parts 253 , the rotating body 252 is fixed on the first rotating part 251 . As shown in FIG. 3 , the first rotating part 251 is fixed on the first rotating shaft 232 , and the second rotating part 253 is connected to the main swing arm 22 through a connecting shaft 255 (not shown in FIG. 3 ).
  • the first rotating part 251 is fixed on the part of the first rotating shaft 232 having the shaft cutout 2321 .
  • a first through hole 2511 is formed on the end surface of the first rotating portion 251 , and the first through hole 2511 is loosely fitted with the first rotating shaft 232 shown in FIG. 4 .
  • the shaft cutout 2321 can be set inwardly from the side of the first shaft 232 towards the support body 24. Since the first shaft 232 and the support body 24 are usually arranged along the width direction F of the terminal device, this solution can reduce the size of the first shaft. 232 along the width direction F of the terminal device, thereby reducing the width of the terminal device.
  • the first rotating shaft 232 since the first rotating shaft 232 is rotatably connected to the base 21, when the foldable mobile phone is folded or unfolded, the first rotating shaft 232 can rotate around its own axis, and the torsion swing arm 25 It can rotate along with the first rotating shaft 232 . Since the two gears 231 on the edge of the synchronous mechanism 23 are respectively fixed on the two first rotating shafts 232, and the four gears 231 all rotate synchronously, so the two first rotating shafts 232 also rotate synchronously, and are respectively fixed on the two first rotating shafts 232. Two torsion swing arms 25 on a rotating shaft 232 also rotate synchronously.
  • the first side surface 2513 of the first rotating portion 251 is provided with a rotating portion cutout 2512 extending inward, and the rotating portion cutout 2512 communicates with the first through hole 2511 .
  • a second through hole 2531 is formed through the second side surface 2514 of the second rotating portion 253 , and the second through hole 2531 may be a circular hole. As shown in FIG. 3 , the second rotating portion 253 is farther away from the base 21 than the first rotating portion 251 .
  • the connecting plate 254 , the first rotating part 251 , the second rotating part 253 and the rotating body 252 can be integrally formed or separately formed.
  • the entire torsion swing arm 25 can be produced by casting.
  • the first rotating part 251, the second rotating part 253, the connecting plate 254 and the rotating body 252 can be made respectively, and the four parts are welded into Torque swing arm 25.
  • one end of the connecting shaft 255 is rotatably connected to the second rotating part 253 , and the other end is slidably connected to the slide groove 2231 of the second clamping part 223 of the main swing arm 22 .
  • the connecting shaft 255 is located at the far end of the chute 2231 away from the center of the base 21; during the folding process of the foldable mobile phone, the torsion swing arm 25 rotates around the first rotating shaft 232, and the main swing arm 22 moves along the arc surface of the blocking portion 213, therefore, the actual movement of the main swing arm 22 is swinging.
  • the right main swing arm 22 also slides to the right during the counterclockwise rotation.
  • the distance between the far end of the chute 2231 on the main swing arm 22 and the first rotating shaft 232 increases gradually, while the distance between the connecting shaft 255 and the first rotating shaft 232 remains constant. Therefore, as shown in FIG.
  • the connecting shaft 255 slides along the sliding slot 2231 of the second clamping portion 223 .
  • there are always two supporting parts one supporting part is provided by the mounting seat 212 as shown in Figure 4, and the other supporting part is provided by the connecting shaft 255, therefore, the mounting seat 212
  • the connecting shaft 255 can provide stable support for the main swing arm 22, thereby improving the stability of the main swing arm 22 during movement.
  • the rotating body 252 is a long strip structure, and the two end surfaces of the rotating body 252 are respectively fixed on the two side walls 2515 of the notch 2512 of the rotating part.
  • the transverse dimension of the torsion swing arm 25 can be reduced, thereby saving the space occupied by the folding mechanism 20 in the width direction F of the foldable mobile phone.
  • the rotating bodies 252 of the two torsion swing arms 25 have a symmetrical structure with respect to the center of the base 21 .
  • the side of the rotating body 252 includes a first acting surface 2521, a second acting surface 2522, a third connecting surface 2524 and a first connecting surface 2523 which are sequentially connected to each other, and the first acting surface 2521 and the third connecting surface 2524 connections.
  • the first action surface 2521 abuts against the upper fixing plate 241 of the supporting body 24 .
  • the second action surface 2522 includes a first plane 2525, an arc surface 2526 and a second plane 2527 connected in sequence, the first plane 2525 and the second plane 2527 are both tangent to the arc surface 2526, the first The plane 2525 is connected to the first action surface 2521 , and the second plane 2527 is connected to the third connection surface 2524 .
  • part of the rotating body 252 protrudes into the slot 246 , and when the foldable mobile phone is in a flattened state, the first active surface 2521 abuts against the lower surface 2413 of the upper fixing plate 241 .
  • the rotating body 252 can provide the supporting body 24 with an active force away from the base 21, so that the upper surface of the upper fixed plate 241 and the upper surface of the torsion swing arm 25 are located on the same plane, and together they are the flexible screen 30 (not shown in FIG. 11 a ). ) to provide support.
  • the first action surface 2521 can be a plane, so that when the foldable mobile phone is in the flattened state, the cooperation between the first action surface 2521 and the upper fixing plate 241 is the cooperation between planes .
  • the first acting surface 2521 can provide stable support for the upper fixing plate 241 .
  • Figure 11c is a schematic diagram of the structure of the folding mechanism 20 when the foldable mobile phone is folded to 100°.
  • the rotation shaft 232 rotates. Therefore, the rotation center of the torsion swing arm 25 is the axis of the first rotation shaft 232 , and the rotation center of the rotating body 252 is also the axis of the first rotation shaft 232 .
  • the arc surface 2526 gradually contacts the lower fixing plate 242; the foldable mobile phone continues to fold, the rotating body 252 continues to rotate, and the right side
  • the arc surface 2526 of the rotator 252 will rotate downward to the right, and the arc surface 2526 is always in a tangent state with the upper surface 2421 of the lower fixing plate 242, and provides the lower fixing plate 242 with an active force to move toward the base 21.
  • the fixing plate 242 can then move toward the base 21 under the action of the acting force, that is, move toward a direction away from the flexible screen 30 (not shown in FIG. 11d ).
  • the rotating body 252 continues to rotate until the foldable mobile phone is in the folded state. As shown in Figure 11e and Figure 11f, when the foldable mobile phone is folded to the folded state, the first plane 2525 of the rotating body 252 is still in contact with the lower fixing plate 242, thereby continuing to provide the supporting body 24 with a force towards the base 21 .
  • the interaction between the rotating body 252 and the lower fixing plate 242 is a plane-to-plane effect, so the rotating body 252 can pass through the first plane 2525 for the lower
  • the fixing plate 242 provides a stable force and makes the support body 24 hover to this position, so that the support body 24 avoids the bending area of the flexible screen 30 (not shown in FIGS. 11 e and 11 f ). Since the folding mechanism 20 of the embodiment of the present application does not need to use a spring, there is no need to reserve the space required for the spring to be compressed to the limit. space, thereby further reducing the thickness of the foldable phone.
  • the rotating body 252 on the right side rotates clockwise with the first rotating shaft 232. 2413 contact, the rotating body 252 continues to rotate, then the rotating body 252 can provide the active force away from the base 21 for the upper fixing plate 241, when the foldable mobile phone is in the flat state, the upper fixing plate 241 can Move until its upper surface is flush with the upper surface of the torsion swing arm 25 .
  • the third connecting surface 2524 of the rotating body 252 is a surface facing the first rotating shaft 232.
  • the torsion swing arm 25 is fixed on the first rotating shaft 232, the third connecting surface 2524 and the first rotating shaft 232 are in contact with each other. , or have a gap, in this way, the interference between parts can be avoided, and it is also convenient to assemble the torsion swing arm 25 and the first rotating shaft 232 .
  • the difference from the embodiment shown in FIG. 10 a lies in the structure of the rotating body 252 .
  • the rotating body 252 includes a third connection surface 2524, a first connection surface 2523, a first action surface 2521 and a second connection surface 2528 connected in sequence, and the third connection surface 2524 and the second connection surface 2528 connections.
  • the first action surface 2521 is an arc surface.
  • the rotating body 252 rotates with the first rotating shaft 232, and the rotating body 252 moves until the first action surface 2521 abuts against the upper surface 2421 of the lower fixing plate 242;
  • the rotating body 252 continues to rotate, it can provide the lower fixing plate 242 with an active force toward the base 21, and the lower fixing plate 242 moves toward the base 21 under the action of the acting force until the foldable mobile phone is in the folded state, and the rotating body 252 stops moving.
  • the lower fixed plate 242 also stops moving, and the rotating body 252 can continue to provide force for the lower fixed plate 242, so that the lower fixed plate 242 hovers at this position, thereby avoiding the bending of the flexible screen 30 (not shown in FIG. 14 a ). folding area.
  • the difference from the embodiment shown in FIG. 3 lies in the structure of the upper fixing plate 241 of the support body 24, the number of the first rotating part 251 and the rotating body 252 in the torsion swing arm 25, and The structure of the connecting plate 254 .
  • the upper fixing plate 241 is a strip-shaped structure
  • the upper fixing plate 241 may include a fixing body 2411 and four protrusions 2412 located on the side of the fixing body 2411
  • the fixing body 2411 is single
  • the two protrusions 2412 are arranged along the side of the fixing body 2411 .
  • the number of protrusions 2412 on one side of the fixing body 2411 may be three or more.
  • the number of first rotating parts 251 and rotating bodies 252 in the torsion swing arm 25 is the same as the number of raised parts 2412 arranged on one side of the upper fixing plate 241 , both of which are two.
  • the two first rotating parts 251 and the rotating body 252 are arranged in a row along the length direction E.
  • the connecting plate 254 has a large connecting area, and connects the two first rotating parts 251 and the second rotating parts 253 .
  • the difference from the embodiment shown in FIG. 11 a lies in the structures of the first rotating portion 251 and the rotating body 252 on the support body 24 and the torsion swing arm 25 .
  • the support body 24 includes an upper fixing plate 241, a lower fixing plate 242, a vertical fixing plate 243 and two side fixing plates 244, the upper fixing plate 241 and the lower fixing plate 242 are parallel to each other, vertical
  • the fixing plate 243 is fixed between the upper fixing plate 241 and the lower fixing plate 242
  • the vertical fixing plates 243 are perpendicular to the upper fixing plate 241 and the lower fixing plate 242 .
  • the lower fixing plate 242 is closer to the base 21 than the upper fixing plate 241 .
  • the two side fixing plates 244 are respectively fixed on both sides of the upper fixing plate 241 and the lower fixing plate 242, and each side fixing plate 244 can form an accommodating cavity 245 with the upper fixing plate 241 and the lower fixing plate 242 with sides closed and open at both ends. , therefore, two accommodating cavities 245 are formed on the supporting body 24 .
  • the first rotating part 251 has a first side surface 2513 away from the second rotating part 253, the first side surface 2513 is a plane, and the rotating body 252 is fixed on the first side surface 2513 of the first rotating part 251 .
  • the rotating body 252 includes a connecting piece 2529 and a fixing column 2530 , wherein the connecting piece 2529 is fixed on the first side surface 2513 , and the fixing column 2530 is fixed on the surface of the connecting piece 2529 facing the supporting body 24 .
  • the connector 2529 can be a strip-shaped plate-like structure. As shown in FIG. 18 , the length direction of the connecting piece 2529 extends toward the direction of the support body 24 .
  • one end of the fixing column 2530 is fixed on the connecting piece 2529 .
  • the other end of the fixing column 2530 extends into the receiving cavity 245 of the support body 24 , and when the foldable mobile phone is in a flattened state, the fixing column 2530 abuts against the lower surface 2413 of the upper fixing plate 241 , In this way, the fixing column 2530 can provide the supporting body 24 with a force away from the base 21 , so that the supporting body 24 provides support for the flexible screen 30 (not shown in FIG. 17 ).
  • the rotating body 252 rotates along with the first rotating shaft 232, and when the rotating body 252 moves until its surface abuts against the upper surface 2421 of the lower fixing plate 242, the rotating body 252 continues to rotate, then
  • the lower fixing plate 242 can be provided with an acting force toward the base 21 , and the lower fixing plate 242 moves toward the base 21 under the action of the acting force.
  • the rotating body 252 stops moving, and the lower fixing plate 242 also stops moving.
  • the rotating body 252 can continue to provide force for the lower fixing plate 242, so that the lower fixing plate 242 hovers at this position, thereby avoiding The bending area of the flexible screen 30 . Since the folding mechanism 20 of the embodiment of the present application does not need to use a spring, there is no need to reserve the space required for the spring to be compressed to the limit. space, thereby further reducing the thickness of the foldable phone.

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Abstract

一种折叠机构(20)及终端设备，涉及终端技术领域。折叠机构(20)包括：底座(21)、支撑体(24)、第一摆臂和第二摆臂(25)；支撑体(24)连接在底座(21)上，支撑体(24)可朝向或远离底座(21)运动，支撑体(24)上设有位置对应的第一槽和第二槽(246)；第一摆臂(25)包括第一转动部(251)以及固定于第一转动部(251)上的第一转动体(252)，第一转动体(252)的部分伸入至第一槽(246)内，第一转动体(252)配置为在转动的过程中，为支撑体(24)提供作用力，以使支撑体(24)朝向或远离底座(21)运动；第二摆臂(25)包括第二转动部(251)以及固定于第二转动部(251)上的第二转动体(252)，第二转动体(252)的部分伸入至第二槽(246)内，第二转动体(252)配置为在转动的过程中，为支撑体(24)提供作用力，以使支撑体(24)朝向或远离底座(21)运动，从而能够减少折叠机构（20）在可折叠手机的厚度方向上的占用空间。

Description

折叠机构及终端设备
本申请要求于2021年11月29日提交中国专利局、申请号为202111434016.X、申请名称为“折叠机构及终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端技术领域，尤其涉及一种折叠机构及终端设备。
背景技术
随着科技的进步，以及大屏幕智能终端时代的来临，为了解决平板电脑体积大、不方便携带，以及手机屏幕小的问题，可折叠手机应运而生。
可折叠手机包括壳体、折叠机构和柔性屏，折叠机构包括旋转臂、升降门板和弹簧，当可折叠手机处于展平态时，升降门板的上表面在旋转臂的作用下与旋转臂的上表面保持平齐，这样可由升降门板和旋转臂共同对柔性屏进行支撑；在可折叠手机折叠的过程中，旋转臂压缩弹簧，弹簧带动与其固定的升降门板下降，从而避让柔性屏在折叠时产生的圆角。
由于相关技术中主要采用弹簧和旋转臂实现升降门板的下降，但是弹簧在压缩至最大压缩量时，依然需要占用一定的空间，而弹簧的轴向与可折叠手机的厚度方向相同，因此，这将导致折叠机构在可折叠手机的厚度方向上占用较大的空间。
发明内容
为了解决上述技术问题，本申请提供一种折叠机构及终端设备，能够减少折叠机构在可折叠手机的厚度方向上的占用空间。
本申请提供一种折叠机构，包括：底座；支撑体，支撑体连接在底座上，支撑体可朝向或远离底座运动，支撑体上设有位置对应的第一槽和第二槽；第一摆臂，第一摆臂包括第一转动部以及固定于第一转动部上的第一转动体，第一转动部以可转动地方式连接在底座上，第一转动体的部分伸入至第一槽内，第一转动体配置为在转动的过程中，为支撑体提供作用力，以使支撑体朝向或远离底座运动；第二摆臂，第二摆臂包括第二转动部以及固定于第二转动部上的第二转动体，第二转动部以可转动地方式连接在底座上，第二转动体的部分伸入至第二槽内，第二转动体配置为在转动的过程中，为支撑体提供作用力，以使支撑体朝向或远离底座运动。
在本申请中，第一摆臂和第二摆臂可以折叠或展开，在第一摆臂与第二摆臂展开的过程中，第一摆臂和第二摆臂能够为支撑体提供作用力，从而使得支撑体远离底座运动，也就是说，支撑体能够上升。折叠机构应用于终端设备时，支撑体能够与第一摆臂和第二摆臂共同为柔性屏提供支撑。在第一摆臂与第二摆臂折叠的过程中，第一摆臂和第二摆臂能够为支撑体提供作用力，使得支撑体朝向底座运动，也就是说，支 撑体能够下降，从而避让柔性屏弯折时产生的圆角。可见本申请的折叠机构，并不需要使用弹簧，也就不需要预留弹簧在压缩至极限时所需要的空间，也就是说，本申请实施例能够节省折叠机构厚度方向上的空间，从而进一步降低终端设备的厚度。
此外，由于第一转动体的部分伸入至第一槽内，因此，不论第一摆臂与第二摆臂处于展平态，还是折叠态，第一转动体均可以为支撑体提供沿终端设备厚度方向的限位，从而限制了支撑体沿厚度方向的位移，进而减少因支撑体产生较大位移而导致柔性屏或终端设备的其他部件损坏的情况。
在一些可能实现的方式中，支撑体包括相对设置的第一固定板和第二固定板以及连接在第一固定板和第二固定板之间的第三固定板，第三固定板将第一固定板与第二固定板之间的空间分隔为第一槽和第二槽。支撑体可采用一体成型结构或用第一固定板、第二固定板以及第三固定板焊接而成。该支撑体结构较为简单。
在一些可能实现的方式中，第二固定板相比第一固定板更加靠近底座，第二固定板相比所述第一固定板更加靠近所述底座，第二固定板沿第一方向的尺寸大于第一固定板沿第一方向的尺寸，第一方向为第一摆臂与第二摆臂的排列方向。这样，在第一摆臂与第二摆臂折叠的过程中，第一固定板能够为第一转动体的转动提供足够的空间，防止第一固定板与第一摆臂干涉。
在一些可能实现的方式中，第一固定板具有朝向第二固定板的第一表面；第一转动体包括第一作用面，在第一摆臂与第二摆臂处于展平态时，第一作用面与第一表面相抵接。这样，在第一摆臂与第二摆臂展开的过程以及在第一摆臂与第二摆臂处于展平态中，第一作用面始终能够为第一表面提供作用力。
在一些可能实现的方式中，第二固定板具有朝向第一固定板的第二表面；第一转动体还包括与第一作用面连接的第二作用面，在第一摆臂与第二摆臂折叠的过程中，第二作用面与第二表面相作用。这样，在第一摆臂与第二摆臂折叠的过程中，第二作用面能够为第二表面提供作用力，以使支撑体朝向底座运动。
在一些可能实现的方式中，第一作用面包括第一平面。在第一摆臂和第二摆臂展开的过程中以及第一摆臂和第二摆臂处于展平态时，第一作用面需要持续为第一表面提供作用力，而当第一作用面包括平面时，便可由该平面为第一表面提供作用力，从而使得第一转动体能够为支撑体提供较为稳定的支撑。
在一些可能实现的方式中，第二作用面包括第二平面，第二平面与第一作用面连接，在第一摆臂与第二摆臂处于折叠态时，第二平面与第二表面相抵接。这样，在第一摆臂与第二摆臂处于折叠态时，便可由第二平面为第二表面提供作用力，从而使得第一转动体能够为支撑体提供较为稳定的支撑。
在一些可能实现的方式中，第二作用面还包括与第二平面连接、且朝外凸出的第一弧面。在第一摆臂与第二摆臂折叠的过程中，第一弧面与第二表面相互作用，由此 可减少因凹凸不平的面导致支撑体在运动的过程中产生颠簸的情况，也就是说，能够使支撑体运动平稳。
在一些可能实现的方式中，第二作用面还包括与第一弧面连接的第三平面，第三平面还用于在第一摆臂与第二摆臂处于展平态时，第三平面的部分与第二表面相抵接。这样，第三平面能够为支撑体提供稳定的支撑。
在一些可能实现的方式中，第一作用面和第二作用面连接形成第二弧面，在第一摆臂与第二摆臂折叠的过程中，第二弧面与第二表面相作用；在第一摆臂与第二摆臂展开的过程中，第二弧面与第一表面相作用。这样，在第一摆臂与第二摆臂展开的过程中，第二弧面始终与第一表面相作用；在第一摆臂和第二摆臂折叠的过程中，第二弧面也始终与第二表面相作用。而弧面具有表面圆滑的特点，因此，能够使得支撑体运动更为平稳。
在一些可能实现的方式中，第一转动体包括连接件以及固定于连接件上的固定件，固定件的至少部分伸入至第一槽内，固定件用于在转动的过程中，为支撑体提供朝向或远离底座的作用力。这样，在第一摆臂与第二摆臂展开或折叠的过程中，固定件始终能够为支撑体提供作用力，以使支撑体远离或朝向底座运动。
在一些可能实现的方式中，连接件位于支撑体的侧面，固定件朝向侧面设置，侧面为与第一摆臂所在的一侧相邻的表面。当连接件位于侧面时，固定件可从侧面伸入至第一槽内。
在一些可能实现的方式中，第一转动部的第一侧表面设有第一切口，第一转动体的部分伸入至第一切口，第一侧表面为在第一摆臂和第二摆臂处于展平态时，第一转动部与第二转动部相对的表面。这样，能够减少第一摆臂的横向尺寸，由于第一摆臂的横向与终端设备的宽度方向相同，由此，可进一步减少折叠组件沿终端设备的宽度方向的尺寸。此外，可增加第一转动体沿终端设备的宽度方向的尺寸，从而提高第一转动体的强度。
在一些可能实现的方式中，第一切口具有相对的两个侧壁，第一转动体固定于两个侧壁上。第一转动体在第一转动部上的固定结构较为简单。
在一些可能实现的方式中，第一固定板包括固定本体以及固定于固定本体一侧的凸起部，凸起部的部分伸入至第一切口。这样，能够进一步增加支撑体沿终端设备宽度方向的尺寸，且能够减小整个折叠机构沿终端设备宽度方向的尺寸。由于支撑体上设置第一槽和第二槽，因此，上述结构可在一定程度上提高支撑体的强度，减少因支撑体沿终端设备宽度方向的尺寸较小，导致第一槽和第二槽之间的第三连接板的厚度较小，从而导致支撑体在受力时出现裂纹的情况。
在一些可能实现的方式中，在第一转动部的第二侧表面设置有第一通孔，第二侧表面与第一侧表面邻接，第一切口与第一通孔连通；第一转动体还具有朝向第一通孔的连接面，连接面在侧壁的投影，与第一通孔在侧壁的投影边缘之间相接触或具有间 隙。当折叠机构应用于终端设备时，折叠机构还包括第一转轴，第一转轴以可转动地方式连接在底座上，第一摆臂固定在第一转轴上。由于在组装终端设备时，可先制作第一摆臂，接着将第一摆臂和第一转轴进行组装，因此，连接面在侧壁的投影部分，与第一通孔在侧壁的投影的边缘之间相接触或具有间隙，能够使得装配较为方便。此外，还能够进一步增加第一转动体沿终端设备宽度方向的尺寸，因此能够提高第一转动体的强度。
在一些可能实现的方式中，第一转动体的数量为多个，第一槽的数量为多个，至少存在两个第一转动体与两个第一槽一一对应；和/或，第二转动体的数量为多个，第二槽的数量为多个，至少存在两个第二转动体与两个第二槽一一对应。这样，多个第一转动体能够为支撑体提供更为稳定的作用力，从而使得支撑体的运动更为平稳。多个第二转动体也能够为支撑体提供更为稳定的作用力，从而使得支撑体的运动更为平稳。
在一些可能实现的方式中，折叠机构还包括第三摆臂，第三摆臂以可沿弧面滑动地方式连接在底座上，第三摆臂与第一摆臂沿第二方向排列，且第三摆臂与第一摆臂连接，以使第三摆臂以与第一摆臂同步地方式相对底座运动；和/或，折叠机构还包括第四摆臂，第四摆臂以可沿弧面滑动地方式连接在底座上；第四摆臂与第二摆臂沿第二方向排列，且第四摆臂与第二摆臂连接，以使第四摆臂以与第二摆臂同步地方式相对底座运动；第二方向与支撑体的运动方向和第一方向均垂直。这样，第一摆臂和第三摆臂、以及第二摆臂和第四摆臂能够共同为柔性屏提供支撑，由此可增加折叠机构对柔性屏的支撑面积，从而进一步提高对柔性屏的支撑强度。此外，由于第一摆臂与第三摆臂始终保持同步运动，第二摆臂与第四摆臂始终保持同步运动，因此，在终端设备折叠或展开的过程中，能够始终保持柔性屏具有较高的平整度，从而能够提高柔性屏的使用寿命。
在一些可能实现的方式中，第三摆臂朝向第一摆臂的表面上设有第一滑槽；第一摆臂还包括固定于第一转动部上的第三转动部以及以可转动地方式连接在第三转动部上的第一连接轴，第一连接轴的部分伸入至第一滑槽内。这样，在第一摆臂绕第一转轴转动的过程中，第三转动部能够通过第一连接轴带动第三摆臂，使得第三摆臂始终与第一摆臂保持同步转动。
在一些可能实现的方式中，第四摆臂朝向第二摆臂的表面上设有第二滑槽；第二摆臂还包括固定于第二转动部上的第四转动部以及以可转动地方式连接在第四转动部上的第二连接轴，第二连接轴的部分伸入至第二滑槽内。第二摆臂可通过第二转轴(与第一转轴平行的另一转轴)连接在底座上，在第二摆臂绕第二转轴转动的过程中，第四转动部能够通过第二连接轴带动第四摆臂，使得第四摆臂始终与第二摆臂保持同步转动。
在一些可能实现的方式中，第一摆臂与第二摆臂相对支撑体的中心平面对称，中心平面为位于支撑体的几何中心、且与第一方向相垂直的平面。这样，第一摆臂和第二摆臂为支撑体提供的支撑点相对应，由此可进一步提高支撑体的运动稳定性。
本申请提供一种终端设备，包括上述任一项的折叠机构。终端设备能够实现上述折叠机构的所有效果。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1a为本申请实施例提供的一种可折叠手机在半折叠状态下的结构示意图；
图1b为本申请实施例提供的一种可折叠手机在展平态时的结构示意图；
图2为本申请实施例提供的壳体和折叠机构的组装结构示意图；
图3为本申请实施例提供的折叠机构的结构示意图；
图4为图3所示折叠机构的拆解结构示意图；
图5为图3所示的折叠机构中的底座的局部结构示意图；
图6a为图3所示的折叠机构中的第一转轴的立体结构示意图；
图6b为图6a所示的第一转轴的侧向视图；
图7为图3所示的折叠机构中的支撑体和底座的拆解结构示意图；
图8为图3所示的折叠机构中的支撑体和扭力摆臂的组装结构示意图；
图9为图3所示的折叠机构中的扭力摆臂的立体结构示意图；
图10a为图9所示的扭力摆臂沿BB方向的剖视图；
图10b为图10a所示的扭力摆臂的C处的局部放大示意图；
图11a为图3所示的折叠机构沿AA方向的剖视图；
图11b为图11a所示剖视图中D处的局部放大示意图；
图11c为图3所示的折叠机构在折叠角度为100°时的结构示意图；
图11d为图11c所示结构示意图中H处的局部放大示意图；
图11e为图3所示的折叠机构在折叠态时的结构示意图；
图11f为图11e所示结构示意图中I处的局部放大示意图；
图12为图3所示的折叠机构在折叠态时的另一结构示意图；
图13为本申请的另一种实施例中，扭力摆臂的局部放大示意图；
图14a为本申请的另一种实施例中，折叠机构在展平态时的结构示意图；
图14b为本申请的另一种实施例中，折叠结构的折叠角度为100°时的结构示意图；
图15a为本申请的又一种实施例中，折叠机构的结构示意图；
图15b为图15a所示折叠机构的局部放大示意图；
图16为再一种实施例中，支撑体的结构示意图；
图17为再一种实施例中，扭力摆臂的结构示意图；
图18为再一种实施例中，折叠结构展平态时的结构示意图。
图标：10-壳体；11-通槽；20-折叠机构；21-底座；211-底板；2111-容纳槽；2112-底板卡槽；2113-底壁；2114-卡槽侧壁；2115-卡槽底壁；212-安装座；213-阻挡部；214-定位部；22-主摆臂；221-臂板；222-第一卡装部；2221-卡装部卡槽；2223-突出部位；223-第二卡装部；2231-滑槽；23-同步机构；231-齿轮；232-第一转轴；2321-转轴切口；233-第二转轴；24-支撑体；241-上固定板；2411-固定本体；2412-凸起部；2413-下表面；242-下固定板；2421-上表面；243-竖向固定板；2431-定位孔；244-侧固定板；245-容纳腔；246-槽；25-扭力摆臂；251-第一转动部；2511-第一通孔；2512-转动部切口；2513-第一侧表面；2514-第二侧表面；2515-切口侧壁；252-转动体；2521-第一作用面；2522-第二作用面；2523-第一连接面；2524-第三连接面；2525-第一平面；2526-圆弧面；2527-第二平面；2528-第二连接面；2529-连接件；2530-固定柱；253-第二转动部；2531-第二通孔；254-连接板；255-连接轴；30-柔性屏；E-长度方向；F-宽度方向；G-厚度方向。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
本申请实施例的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一目标对象和第二目标对象等是用于区别不同的目标对象，而不是用于描述目标对象的特定顺序。
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
在本申请实施例的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个处理单元是指两个或两个以上的处理单元；多个系统是指两个或两个以上的系统。
本申请实施例提供一种折叠机构，该折叠机构可应用于可折叠手机。折叠机构还可应用于可折叠平板电脑、可折叠游戏机、可折叠个人数字助理(pErsonal diGital assistant，PDA)等具有折叠功能的终端设备。本申请实施例对上述终端设备的具体形式不作限定。
如图1a和图1b所示，可折叠手机可沿其中心进行折叠，当可折叠手机处于折叠态时，即，可折叠手机的折叠角度为0，可以减小可折叠手机的尺寸；当可折叠手机处于展平态时，即，可折叠手机的折叠角度为180°，柔性屏30处于最大显示面积的 状态，此时用户可以在柔性屏30上进行操作。需要说明的是，折叠角度指的是可折叠手机的左右两部分之间的夹角。
为了便于对本申请实施例的技术方案进行清楚的描述，如图2所示，可定义三个方向，分别为可折叠手机的长度方向E(第二方向)，可折叠手机的宽度方向F(第一方向)和可折叠手机的厚度方向G。
此外，在本申请实施例中，“上”、“下”、“左”和“右”指的是可折叠手机处于展平态，当用户双手握持可折叠手机且柔性屏30朝向用户时，以用户手部作为参照而确定的方位。
如图2所示，可折叠手机包括壳体10、折叠机构20和柔性屏30(图2中未示出)，壳体10的一侧表面设有通槽11，折叠机构20连接于通槽11内。柔性屏30固定在壳体10上设有通槽11的一侧表面。
如图3所示，折叠机构20包括：底座21、两个主摆臂22、同步机构23、支撑体24以及两个扭力摆臂25。在本实施例中，如图2所示，折叠机构20的数量可以为两个，且两个折叠机构20分别设于壳体10的两端。
在本申请的其他实施例中，折叠机构20的数量可以为一个、三个或者更多个，当折叠机构20的数量为一个时，一个折叠机构20可设置于底座21沿长度方向E的中部；当折叠机构20的数量为多个时，多个折叠机构20可沿长度方向E均布。
如图4所示，底座21包括底板211、安装座212、阻挡部213和定位部214。
如图2所示，底板211固定于壳体10的通槽11内。如图4所示，底板211具有容纳槽2111，容纳槽2111的底壁2113为平面。
如图4所示，安装座212固定在容纳槽2111内。如图5所示，安装座212背离底板211的一面设有底板卡槽2112。底板卡槽2112的相对的两个卡槽侧壁2114上均设有一个阻挡部213，两个阻挡部213之间具有间隙，卡槽底壁2115与阻挡部213之间也具有间隙。阻挡部213朝向卡槽底壁2115的表面为圆弧面。底板卡槽2112的数量可以为两个，且两个底板卡槽2112在底座21上错开排列。
如图5所示，定位部214固定于底座21的底壁2113上，定位部214在底壁2113上的投影形状可为圆形。在本申请的其他实施例中，定位部214在底壁2113上的投影也可以为正方形或长方形等形状。
如图5所示，在本实施例中，定位部214的数量可以为一个。在本申请的其他实施例中，定位部214的数量也可以为多个。当定位部214的数量为多个时，多个定位部214可沿直线、呈三角形、或呈矩形等排列设置。
如图2所示，两个主摆臂22沿宽度方向F并排相邻设置，两个主摆臂22均以可转动地方式连接在底座21上。
如图4所示，主摆臂22包括臂板221、第一卡装部222和第二卡装部223，第一卡装部222和第二卡装部223均固定在臂板221朝向底座21的一面。
如图4所示，第一卡装部222朝向底座21的表面为圆弧面，第一卡装部222的两个端面朝内延伸设置有卡装部卡槽2221，第一卡装部222上形成有突出部位2223， 突出部位2223可容纳于底板卡槽2112内，突出部位2223朝向臂板221的表面为圆弧面。底座21的阻挡部213可容纳于卡装部卡槽2221内，且突出部位2223朝向臂板221的表面与阻挡部213朝向卡槽底壁2115的表面相抵接。这样，主摆臂22可通过突出部位2223连接在底座21上。由于阻挡部213朝向卡槽底壁2115的表面和突出部位2223朝向臂板221的表面均为圆弧面，因此，在可折叠手机折叠或展开的过程中，主摆臂22将沿阻挡部213的圆弧面运动。
如图4所示，在第二卡装部223的一端面朝内延伸设置有贯穿至另一端面的滑槽2231，滑槽2231的形状为跑道形，具体地，滑槽2231的中部为矩形、两端为半圆形，且两端的半圆形均与矩形相对的两边邻接。
如图4所示，同步机构23包括四个齿轮231、两个第一转轴232和两个第二转轴233，四个齿轮231沿可折叠手机的宽度方向F依次排列设置，且四个齿轮231中每相邻的两个齿轮231均相互啮合。四个齿轮231中位于中间的两个齿轮231可略低于位于边缘的两个齿轮231。四个齿轮231的外形尺寸均相同，这样，在可折叠手机进行折叠或展开的过程中，四个齿轮231在转动的过程中，能够始终保持同步转动。
如图4所示，两个第一转轴232相互平行，且均以可转动地方式连接在底座21上，四个齿轮231中位于边缘的两个齿轮231分别固定在两个第一转轴232上，即，位于边缘的两个齿轮231中的一个齿轮231固定在一个第一转轴232上、另一个齿轮231固定在另一个第一转轴232上。
如图6a所示，第一转轴232的一端面朝内延伸设置有转轴切口2321，转轴切口2321沿可折叠手机的长度方向E的尺寸小于第一转轴232的长度，且齿轮231在第一转轴232上的投影与转轴切口2321无重叠。如图6b所示，在本申请实施例中，转轴切口2321的数量可以为两个，两个转轴切口2321沿第一转轴232的周向均匀设置。在本申请其他实施例中，转轴切口2321的数量可以为一个，或者三个。
需要说明的是，当折叠机构20的数量为多个时，各折叠机构20中的第一转轴232均可相互固定。具体地，可将多个第一转轴232作为一体式的结构，这样，能够尽可能使得各折叠机构20的同步机构23同步转动，从而增加可折叠手机折叠过程的稳定性。
两个第二转轴233均以可转动地方式连接在底座21上，如图4所示，四个齿轮231中，位于中间的两个齿轮231分别固定在两个第二转轴233上。即，位于中间的两个齿轮231中的一个齿轮231固定在一个第二转轴233上，另一个齿轮231固定在另一个第二转轴233上。第二转轴233的长度小于第一转轴232的长度。
如图3所示，支撑体24连接在底座21上。如图7所示，支撑体24包括上固定板241、下固定板242和竖向固定板243。上固定板241和下固定板242相互平行，竖向固定板243固定在上固定板241和下固定板242之间，且竖向固定板243与上固定板241和下固定板242均垂直。
需要说明的是，本实施例中，支撑体24可以采用上固定板241、下固定板242和竖向固定板243焊接而成，竖向固定板243可将上固定板241和下固定板242之间的 空间分隔为两个槽246；也可以采用铸造的方法制作支撑体24，接着，在支撑体24的两个相对的侧面分别加工槽246(如图7所示)。
如图8所示，上固定板241的板面形状可呈“十”字形，具体地，上固定板241包括固定本体2411以及分别位于固定本体2411两侧的两个凸起部2412。
如图7所示，下固定板242的外形形状可为长方体，下固定板242相比上固定板241更加靠近底座21。下固定板242沿宽度方向F的尺寸可大于长度方向E的尺寸。由于下固定板242更加靠近底座21，不与柔性屏30接触或连接，无需对柔性屏30提供支撑，因此，下固定板242沿长度方向E的尺寸可小于上固定板241沿长度方向E的尺寸，这样，能够减轻下固定板242的重量，从而减少可折叠手机的重量。
如图7所示，竖向固定板243沿可折叠手机长度方向E的尺寸可小于或等于上固定板241沿可折叠手机长度方向E的尺寸，这样在满足上固定板241与下固定板242之间的连接强度的基础上，还能够尽可能减少竖向固定板243的重量。
如图7所示，下固定板242上设有定位孔2431，底座21的定位部214可位于定位孔2431内，这样，支撑体24连接在底座21上后，可沿可折叠手机的厚度方向G滑动。当可折叠手机折叠或展开时，定位部214能够为支撑体24提供横向定位，减少在可折叠手机折叠或展开的过程中，支撑体24产生过大的横向位移的情况。
如图7所示，定位孔2431与定位部214相适配，即，定位孔2431的形状可与定位部214的截面形状相同，示例性的，当定位部214的截面形状为圆形时，定位孔2431也为圆形孔。此外，定位部214与定位孔2431之间的配合关系可为间隙配合。需要说明的是，定位部214的截面形状为沿与可折叠手机的厚度方向G相垂直的剖切面截取的平面的形状。
如图7所示，定位孔2431的数量与定位部214的数量相同，且设置位置一一对应。当定位部214的数量为一个时，定位孔2431的数量为也为一个，由于在本申请实施例中下固定板242在可折叠手机长度方向E的尺寸较小，因此，仅设置一组定位部214和定位孔2431，即可实现支撑体24的横向定位的功能。在本申请的其他实施例中，定位部214和定位孔2431的数量均可为多个，且多个定位孔2431也可呈三角形、矩形等形状排列设置，这样能够进一步提高对定位部214对支撑体24的横向定位的作用。
如图3所示，两个扭力摆臂25沿可折叠手机宽度方向F排列设置。
如图9所示，扭力摆臂25包括第一转动部251、转动体252、第二转动部253、连接板254和连接轴255，其中连接板254固定在第一转动部251和第二转动部253之间，转动体252固定在第一转动部251上。如图3所示，第一转动部251固定在第一转轴232上，第二转动部253通过连接轴255(图3中未示出)与主摆臂22连接。
第一转动部251固定在第一转轴232上具有转轴切口2321的部位。如图9所示，在第一转动部251的端面设置有贯穿的第一通孔2511，第一通孔2511与图4所示的第一转轴232间隙配合。转轴切口2321可从第一转轴232朝向支撑体24的一侧朝内设置，由于第一转轴232和支撑体24通常沿终端设备的宽度方向F排列设置，因此，该方案能够减小第一转轴232沿终端设备的宽度方向F的尺寸，从而减小终端设备的 宽度。
如图11c所示，由于第一转轴232以可转动地方式连接在底座21上，因此，在可折叠手机折叠或展开的过程中，第一转轴232可绕自身轴线进行转动，扭力摆臂25可随着第一转轴232转动。由于同步机构23中位于边缘的两个齿轮231分别固定在两个第一转轴232上，而四个齿轮231均同步转动，因此两个第一转轴232也同步转动，则分别固定于两个第一转轴232上的两个扭力摆臂25也同步转动。
如图9和图10a所示，第一转动部251的第一侧表面2513朝内延伸设置有转动部切口2512，转动部切口2512与第一通孔2511连通。
如图9所示，第二转动部253的第二侧表面2514上贯穿设置有第二通孔2531，第二通孔2531可以为圆形孔。如图3所示，第二转动部253相比第一转动部251更加远离底座21。
如图9所示，连接板254的两端分别与第一转动部251和第二转动部253固定。连接板254、第一转动部251、第二转动部253和转动体252可采用一体成型方式，或分体成型方式。当采用一体成型方式时，整个扭力摆臂25可采用铸造的方法进行制作。当采用分体成型的方式时，在制作扭力摆臂25时，可分别将第一转动部251、第二转动部253、连接板254以及转动体252制作好，并将该四个部件焊接为扭力摆臂25。
如图4所示，连接轴255的一端以可转动地方式连接在第二转动部253上，另一端以可滑动地方式连接在主摆臂22的第二卡装部223的滑槽2231内。当可折叠手机处于展平态时，连接轴255位于滑槽2231内远离底座21中心的远端位置；在可折叠手机折叠的过程中，扭力摆臂25绕第一转轴232转动，主摆臂22沿阻挡部213的圆弧面运动，因此，主摆臂22的实际运动为摆动，示例性的，右侧的主摆臂22在逆时针转动的过程中，还向右侧滑动。主摆臂22上的滑槽2231远端与第一转轴232之间的距离逐渐增加，而连接轴255与第一转轴232之间的距离始终不变，因此，如图12所示，在扭力摆臂25和主摆臂22运动的过程中，连接轴255沿第二卡装部223的滑槽2231内滑动。在主摆臂22运动的过程中，始终存在两个支撑部位，一个支撑部位为如图4所示的安装座212所提供的，另一个支撑部位为连接轴255提供的，因此，安装座212和连接轴255可为主摆臂22提供稳定的支撑，从而提高主摆臂22运动过程中的稳定性。
如图9所示，转动体252为长条状结构，且转动体252的两个端面分别固定在转动部切口2512的两个切口侧壁2515。由此，可减少扭力摆臂25的横向尺寸，从而节省折叠机构20在可折叠手机宽度方向F上的占用空间。如图11a所示，两个扭力摆臂25的转动体252以底座21的中心呈对称结构。
如图10b所示，转动体252的侧面包括依次相互连接的第一作用面2521、第二作用面2522、第三连接面2524和第一连接面2523，第一作用面2521与第三连接面2524连接。如图11a所示，当可折叠手机处于展平态时，第一作用面2521与支撑体24的上固定板241相抵接。
如图10b所示，第二作用面2522包括依次连接的第一平面2525、圆弧面2526和 第二平面2527，第一平面2525和第二平面2527均与圆弧面2526相切，第一平面2525与第一作用面2521连接，第二平面2527与第三连接面2524连接。
如图11a所示，转动体252的部分伸入至槽246内，当可折叠手机处于展平态时，第一作用面2521与上固定板241的下表面2413相抵接。这样，转动体252能够为支撑体24提供背离底座21的作用力，使上固定板241的上表面与扭力摆臂25的上表面位于同一平面，共同为柔性屏30(图11a中未示出)提供支撑。如图11b所示，第一作用面2521可以为平面，这样，当可折叠手机处于展平态时，第一作用面2521与上固定板241之间的配合，为平面与平面之间的配合。由此，能够使得第一作用面2521为上固定板241提供稳定的支撑。
图11c为可折叠手机折叠至100°时，折叠机构20的结构示意图，如图11c所示，在可折叠手机折叠的过程中，第一转轴232绕自身轴线转动，扭力摆臂25随第一转轴232转动，因此，扭力摆臂25的转动中心为第一转轴232的轴线，转动体252的转动中心也为第一转轴232的轴线。在转动体252绕第一转轴232的轴线转动的过程中，如图11d所示，圆弧面2526逐渐与下固定板242相接触；可折叠手机继续折叠，转动体252继续转动，右侧的转动体252的圆弧面2526将朝右下方转动，圆弧面2526与下固定板242的上表面2421始终处于相切的状态，并为下固定板242提供朝向底座21运动的作用力，下固定板242即可在该作用力的作用下朝向底座21运动，即，朝向背离柔性屏30(图11d中未示出)的方向运动。
转动体252继续转动，直到可折叠手机处于折叠态。如图11e和图11f所示，当可折叠手机折叠至折叠态时，转动体252的第一平面2525仍然与下固定板242相抵接，从而继续为支撑体24提供朝向底座21方向的作用力。由于第一平面2525和下固定板242的上表面2421均为平面，因此转动体252与下固定板242之间的作用为平面与平面的作用，因此转动体252能够通过第一平面2525为下固定板242提供稳定的作用力，并使支撑体24悬停至该位置处，从而使支撑体24避让柔性屏30(图11e和图11f中未示出)的弯折区域。由于本申请实施例的折叠机构20，并不需要使用弹簧，也就不需要预留弹簧在压缩至极限时所需要的空间，也就是说，本申请实施例能够节省可折叠手机厚度方向G上的空间，从而进一步降低可折叠手机的厚度。
在可折叠手机展开的过程中，如图11c所示，右侧的转动体252随着第一转轴232顺时针旋转，当转动体252转动至第一作用面2521与上固定板241的下表面2413相接触，转动体252继续转动，则转动体252可为上固定板241提供远离底座21的作用力，当可折叠手机处于展平态时，上固定板241可在转动体252的作用下运动至其上表面与扭力摆臂25的上表面齐平。
如图11a所示，转动体252的第三连接面2524为朝向第一转轴232的表面，当扭力摆臂25固定于第一转轴232上时，第三连接面2524与第一转轴232相互接触，或者具有间隙，这样，能够避免零部件之间的干涉，也便于对扭力摆臂25和第一转轴232进行组装。
在本申请的另一实施例中，与图10a所示实施例的区别在于转动体252的结构。具体地，如图13所示，转动体252包括依次连接的第三连接面2524、第一连接面2523、 第一作用面2521和第二连接面2528，第三连接面2524与第二连接面2528连接。第一作用面2521为圆弧面。
如图14a所示，当可折叠手机处于展平态时，第一作用面2521与上固定板241的下表面2413相抵接。在对可折叠手机进行折叠的过程中，如图14b所示，转动体252随着第一转轴232转动，转动体252运动至第一作用面2521与下固定板242的上表面2421相抵接；转动体252继续转动，则可为下固定板242提供朝向底座21的作用力，下固定板242在该作用力的作用下朝向底座21运动，直到可折叠手机处于折叠态，转动体252停止运动，下固定板242也停止运动，转动体252可持续为下固定板242提供作用力，使得下固定板242悬停在该位置处，从而避让柔性屏30(图14a中未示出)的弯折区域。
在本申请的另一实施例中，与图3所示实施例的区别在于支撑体24的上固定板241的结构、扭力摆臂25中的第一转动部251和转动体252的数量，以及连接板254的结构。
具体地，如图15a和图15b所示，上固定板241为长条状结构，上固定板241可包括固定本体2411以及位于固定本体2411侧部的四个凸起部2412，固定本体2411单侧的凸起部2412的数量均为两个，且两个凸起部2412沿固定本体2411的侧部排列设置。在其他实施例中，固定本体2411单侧的凸起部2412的数量还可以为三个或更多个。
与之对应的，参照图15a，在本实施例中，扭力摆臂25中的第一转动部251和转动体252的数量与上固定板241的单侧所排列的凸起部2412的数量相同，均为两个。具体地，两个第一转动部251和转动体252均沿长度方向E排列设置。连接板254具有较大的连接面积，将两个第一转动部251和第二转动部253进行连接。
在本实施例中，如图15a所示，由于支撑体24的长度更长一些，因此，支撑体24与柔性屏30(图15a中未示出)之间的接触面积更大，也就能够为柔性屏30提供更为稳定的支撑。
在本申请的又一实施例中，与图11a所示实施例的区别在于支撑体24和扭力摆臂25上第一转动部251和转动体252的结构。具体地，如图16所示，支撑体24包括上固定板241、下固定板242、竖向固定板243和两个侧固定板244，上固定板241和下固定板242相互平行，竖向固定板243固定在上固定板241和下固定板242之间，且竖向固定板243均与上固定板241和下固定板242垂直。下固定板242相比上固定板241更加靠近底座21。两个侧固定板244分别固定在上固定板241和下固定板242的两侧，每个侧固定板244可与上固定板241和下固定板242形成侧部封闭两端开口的容纳腔245，因此，支撑体24上共形成有两个容纳腔245。
如图17所示，第一转动部251具有背离第二转动部253的第一侧表面2513，第一侧表面2513为平面，转动体252固定在第一转动部251的第一侧表面2513上。
如图17所示，转动体252包括连接件2529和固定柱2530，其中连接件2529固定在第一侧表面2513，固定柱2530固定在连接件2529朝向支撑体24的表面上。连 接件2529可为长条状的板状结构。如图18所示，连接件2529的长度方向朝向支撑体24的方向延伸。
如图17所示，固定柱2530的一端固定在连接件2529上。如图18所示，固定柱2530的另一端伸入至支撑体24的容纳腔245内，且当可折叠手机处于展平态时，固定柱2530与上固定板241的下表面2413相抵接，这样，固定柱2530能够为支撑体24提供远离底座21的作用力，从而使支撑体24为柔性屏30(图17中未示出)提供支撑。在对可折叠手机进行折叠的过程中，转动体252随着第一转轴232转动，当转动体252运动至其表面与下固定板242的上表面2421相抵接时，转动体252继续转动，则可为下固定板242提供朝向底座21的作用力，下固定板242在该作用力的作用下朝向底座21运动。直到可折叠手机处于折叠态，转动体252停止运动，下固定板242也停止运动，转动体252可持续为下固定板242提供作用力，使得下固定板242悬停在该位置处，从而避让柔性屏30的弯折区域。由于本申请实施例的折叠机构20，并不需要使用弹簧，也就不需要预留弹簧在压缩至极限时所需要的空间，也就是说，本申请实施例能够节省可折叠手机厚度方向G上的空间，从而进一步降低可折叠手机的厚度。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (22)

  1. 一种折叠机构，其特征在于，包括：
    底座；
    支撑体，所述支撑体连接在所述底座上，设有位置对应的第一槽和第二槽，所述支撑体可朝向或远离所述底座运动；
    第一摆臂，所述第一摆臂包括第一转动部以及固定于所述第一转动部上的第一转动体，所述第一转动部以可转动地方式连接在所述底座上，所述第一转动体的部分伸入至所述第一槽内，所述第一转动体配置为在转动的过程中，为所述支撑体提供作用力，以使所述支撑体朝向或远离所述底座运动；
    第二摆臂，所述第二摆臂包括第二转动部以及固定于所述第二转动部上的第二转动体，所述第二转动部以可转动地方式连接在所述底座上，所述第二转动体的部分伸入至所述第二槽内，所述第二转动体配置为在转动的过程中，为所述支撑体提供作用力，以使所述支撑体朝向或远离所述底座运动。
  2. 根据权利要求1所述的折叠机构，其特征在于，所述支撑体包括相对设置的第一固定板和第二固定板以及连接在所述第一固定板和所述第二固定板之间的第三固定板，所述第三固定板将第一固定板与所述第二固定板之间的空间分隔为所述第一槽和所述第二槽。
  3. 根据权利要求2所述的折叠机构，其特征在于，所述第二固定板相比所述第一固定板更加靠近所述底座，所述第二固定板沿第一方向的尺寸大于所述第一固定板沿所述第一方向的尺寸，所述第一方向为所述第一摆臂与所述第二摆臂的排列方向。
  4. 根据权利要求2或3所述的折叠机构，其特征在于，所述第一固定板具有朝向所述第二固定板的第一表面；
    所述第一转动体包括第一作用面，在所述第一摆臂与所述第二摆臂处于展平态时，所述第一作用面与所述第一表面相抵接。
  5. 根据权利要求4所述的折叠机构，其特征在于，所述第二固定板具有朝向所述第一固定板的第二表面；
    所述第一转动体还包括与所述第一作用面连接的第二作用面，在所述第一摆臂与所述第二摆臂折叠的过程中，所述第二作用面与所述第二表面相作用。
  6. 根据权利要求4或5所述的折叠机构，其特征在于，所述第一作用面包括第一平面。
  7. 根据权利要求5所述的折叠机构，其特征在于，所述第二作用面包括第二平面，所述第二平面与所述第一作用面连接，在所述第一摆臂与所述第二摆臂处于折叠态时，所述第二平面与所述第二表面相抵接。
  8. 根据权利要求7所述的折叠机构，其特征在于，所述第二作用面还包括与所述第二平面连接、且朝外凸出的第一弧面。
  9. 根据权利要求8所述的折叠机构，其特征在于，所述第二作用面还包括与所述第 一弧面连接的第三平面，所述第三平面还用于在所述第一摆臂与所述第二摆臂处于展平态时，所述第三平面的部分与所述第二表面相抵接。
  10. 根据权利要求5所述的折叠机构，其特征在于，所述第一作用面和所述第二作用面连接形成第二弧面，在所述第一摆臂与所述第二摆臂折叠的过程中，所述第二弧面与所述第二表面相作用；在所述第一摆臂与所述第二摆臂展开的过程中，所述第二弧面与所述第一表面相作用。
  11. 根据权利要求3所述的折叠机构，其特征在于，所述第一转动体包括连接件以及固定于所述连接件上的固定件，所述固定件的至少部分伸入至所述第一槽内，所述固定件用于在转动的过程中，为所述支撑体提供朝向或远离所述底座的作用力。
  12. 根据权利要求11所述的折叠机构，其特征在于，所述连接件位于所述支撑体的侧面，所述固定件朝向所述侧面设置，所述侧面为与所述第一摆臂所在的一侧相邻的表面。
  13. 根据权利要求2-12任一项所述的折叠机构，其特征在于，所述第一转动部的第一侧表面设有第一切口，所述第一转动体的部分伸入至所述第一切口，所述第一侧表面为在所述第一摆臂和所述第二摆臂处于展平态时，所述第一转动部与所述第二转动部相对的表面。
  14. 根据权利要求13所述的折叠机构，其特征在于，所述第一切口具有相对的两个侧壁，所述第一转动体固定于所述两个侧壁上。
  15. 根据权利要求13或14所述的折叠机构，其特征在于，所述第一固定板包括固定本体以及固定于所述固定本体一侧的凸起部，所述凸起部的部分伸入至所述第一切口。
  16. 根据权利要求14所述的折叠机构，其特征在于，在所述第一转动部的第二侧表面设置有第一通孔，所述第二侧表面与所述第一侧表面邻接，所述第一切口与所述第一通孔连通；
    所述第一转动体还具有朝向所述第一通孔的连接面，所述连接面在所述侧壁的投影，与所述第一通孔在所述侧壁的投影边缘之间相接触或具有间隙。
  17. 根据权利要求1-16任一项所述的折叠机构，其特征在于，所述第一转动体的数量为多个，所述第一槽的数量为多个，至少存在两个所述第一转动体与两个所述第一槽一一对应；
    和/或，所述第二转动体的数量为多个，所述第二槽的数量为多个，至少存在两个所述第二转动体与两个所述第二槽一一对应。
  18. 根据权利要求3所述的折叠机构，其特征在于，所述折叠机构还包括第三摆臂，所述第三摆臂以可沿弧面滑动地方式连接在所述底座上，所述第三摆臂与所述第一摆臂沿第二方向排列，且所述第三摆臂与所述第一摆臂连接，以使所述第三摆臂以与所述第一摆臂同步地方式相对所述底座运动；
    和/或，所述折叠机构还包括第四摆臂，所述第四摆臂以可沿弧面滑动地方式连接在所述底座上；所述第四摆臂与所述第二摆臂沿所述第二方向排列，且所述第四摆臂与所述 第二摆臂连接，以使所述第四摆臂以与所述第二摆臂同步地方式相对所述底座运动；
    所述第二方向与所述支撑体的运动方向和所述第一方向均垂直。
  19. 根据权利要求18所述的折叠机构，其特征在于，所述第三摆臂朝向所述第一摆臂的表面上设有第一滑槽；
    所述第一摆臂还包括固定于所述第一转动部上的第三转动部以及以可转动地方式连接在所述第三转动部上的第一连接轴，所述第一连接轴的部分伸入至所述第一滑槽内。
  20. 根据权利要求18或19所述的折叠机构，其特征在于，所述第四摆臂朝向所述第二摆臂的表面上设有第二滑槽；
    所述第二摆臂还包括固定于所述第二转动部上的第四转动部以及以可转动地方式连接在所述第四转动部上的第二连接轴，所述第二连接轴的部分伸入至所述第二滑槽内。
  21. 根据权利要求3、11或12任一项所述的折叠机构，其特征在于，所述第一摆臂与所述第二摆臂相对所述支撑体的中心平面对称，所述中心平面为位于所述支撑体的几何中心、且与所述第一方向相垂直的平面。
  22. 一种终端设备，其特征在于，所述终端设备包括权利要求1-21任一项所述的折叠机构。
PCT/CN2022/118815 2021-11-29 2022-09-14 折叠机构及终端设备 WO2023093226A1 (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115013421B (zh) * 2021-11-29 2023-04-14 荣耀终端有限公司 折叠机构及终端设备
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
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
CN116658513B (zh) * 2022-11-30 2024-04-23 荣耀终端有限公司 折叠组件、折叠装置及终端设备
CN117847076A (zh) * 2023-03-22 2024-04-09 荣耀终端有限公司 转轴机构及终端设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190174645A1 (en) * 2017-12-04 2019-06-06 Lg Display Co., Ltd. Foldable display apparatus
US10480225B1 (en) * 2018-12-25 2019-11-19 Fositek Corporation Hinge mechanism and flexible electronic device having the same
CN213270695U (zh) * 2020-05-12 2021-05-25 杭州安费诺飞凤通信部品有限公司 一种应用于内折柔性屏终端的运动机构
CN112901649A (zh) * 2021-03-09 2021-06-04 东莞市环力智能科技有限公司 一种三段式内折叠铰链
CN115013421A (zh) * 2021-11-29 2022-09-06 荣耀终端有限公司 折叠机构及终端设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205750631U (zh) * 2016-01-19 2016-11-30 杭州安费诺飞凤通信部品有限公司 柔性屏支撑铰链、柔性屏装置及移动终端
TWM551804U (zh) * 2017-06-08 2017-11-11 First Dome Corp 鉸鏈及具有該鉸鏈的折疊式電子裝置
CN108922408B (zh) * 2018-09-19 2024-02-27 云谷（固安）科技有限公司 一种可折叠支撑装置及可折叠柔性显示装置
CN111629087A (zh) * 2019-02-28 2020-09-04 Oppo广东移动通信有限公司 折叠式移动终端
US11337321B2 (en) * 2019-02-28 2022-05-17 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Foldable terminal
CN111698355B (zh) * 2019-03-15 2021-07-09 华为技术有限公司 一种转轴机构及移动终端
CN112153178A (zh) * 2019-06-27 2020-12-29 华为技术有限公司 一种转轴机构及可折叠移动终端
CN115665293A (zh) * 2020-04-15 2023-01-31 华为技术有限公司 折叠装置及电子设备
CN111885235B (zh) * 2020-07-25 2022-01-11 Oppo广东移动通信有限公司 可折叠壳体组件及可折叠电子设备
CN213028129U (zh) * 2020-08-06 2021-04-20 比亚迪股份有限公司 一种折叠机构及柔性屏移动终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190174645A1 (en) * 2017-12-04 2019-06-06 Lg Display Co., Ltd. Foldable display apparatus
US10480225B1 (en) * 2018-12-25 2019-11-19 Fositek Corporation Hinge mechanism and flexible electronic device having the same
CN213270695U (zh) * 2020-05-12 2021-05-25 杭州安费诺飞凤通信部品有限公司 一种应用于内折柔性屏终端的运动机构
CN112901649A (zh) * 2021-03-09 2021-06-04 东莞市环力智能科技有限公司 一种三段式内折叠铰链
CN115013421A (zh) * 2021-11-29 2022-09-06 荣耀终端有限公司 折叠机构及终端设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4215767A4

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