WO2022257582A1 - 一种可折叠电子设备 - Google Patents

一种可折叠电子设备 Download PDF

Info

Publication number
WO2022257582A1
WO2022257582A1 PCT/CN2022/085483 CN2022085483W WO2022257582A1 WO 2022257582 A1 WO2022257582 A1 WO 2022257582A1 CN 2022085483 W CN2022085483 W CN 2022085483W WO 2022257582 A1 WO2022257582 A1 WO 2022257582A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
flexible circuit
shaft
housing
annular
Prior art date
Application number
PCT/CN2022/085483
Other languages
English (en)
French (fr)
Inventor
王海洋
刘旭良
侯壮
贾王欢
马春军
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2022257582A1 publication Critical patent/WO2022257582A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack

Definitions

  • the embodiments of the present application relate to the technical field of terminals, and in particular, to a foldable electronic device.
  • a foldable electronic device with a flexible screen can provide a larger display area when unfolded, and has a compact overall structure and is easy to store after being folded.
  • the foldable electronic device includes a rotating shaft mechanism and housings respectively arranged on both sides of the rotating shaft mechanism.
  • the two housings can be rotated relative to the rotating shaft mechanism so that the two housings can be unfolded or folded relative to each other.
  • Printed circuit boards or other devices are arranged in the two housings.
  • the devices in the two housings can be electrically connected through the shaft-through flexible circuit board.
  • the shaft-through flexible circuit board passes through the shaft mechanism, and the two ends of the shaft-through flexible circuit board Penetrate into the two shells respectively and connect to corresponding devices.
  • the casing of the existing foldable electronic equipment is prone to dust or water ingress at the position where the flexible circuit board passes through the shaft, resulting in failure of the components in the casing.
  • the embodiment of the present application provides a foldable electronic device, which solves the problem that the casing of the existing foldable electronic device is prone to dust or water ingress at the position where the flexible circuit board passes through the shaft, which causes failure of components in the casing.
  • an embodiment of the present application provides a foldable electronic device, including: a rotating shaft mechanism, a first housing, a second housing, a shaft-through flexible circuit board, a first switching circuit board, and a first annular sealing assembly.
  • the first casing and the second casing are respectively rotatably connected to two sides of the rotating shaft mechanism, so that the first casing and the second casing can be relatively unfolded or relatively folded.
  • the first housing has a first via hole.
  • the first switching circuit board is disposed on the first casing.
  • the middle part of the shaft-through flexible circuit board straddles the shaft mechanism, the first end of the shaft-through flexible circuit board penetrates through the first via hole and is electrically connected with the first transfer circuit board, and the second end of the shaft-through flexible circuit board extends to the second housing.
  • the first annular sealing assembly is arranged around the joint of the through-shaft flexible circuit board and the first transition circuit board, and is used for sealing the gap between the first end of the through-shaft flexible circuit board and the first via hole.
  • the foldable electronic device uses a combination of a shaft-through flexible circuit board and a first transfer circuit board to connect devices respectively located in the first housing and the second housing, and the shaft-through flexible circuit board straddles the rotating shaft
  • the first transfer circuit board is arranged in the first housing, and the first end of the through-shaft flexible circuit board is electrically connected to the first transfer circuit board after passing through the first through hole of the first housing.
  • the first annular sealing assembly is arranged around the connection between the through-shaft flexible circuit board and the first transfer circuit board, the first annular sealing assembly forms a complete sealing path to the first end of the through-shaft flexible circuit board, and can seal the first housing
  • the X and Y directions of the first via hole are dustproof and waterproof, so that the inside of the first housing is isolated from the outside world.
  • the first end of the through-axis flexible circuit board can reach IPX7 and above Dust and water resistance.
  • the through-shaft flexible circuit board can be reliably fixed on the first housing.
  • the first end of the through-shaft flexible circuit board is electrically connected to the first transfer circuit board through the first connector, and the first annular seal assembly surrounds the first A connector set.
  • the first connector By arranging the first connector between the shaft-through flexible circuit board and the first transition circuit board, a certain distance is formed between the shaft-through flexible circuit board and the first transition circuit board in the thickness direction to place the first annular seal assembly, A complete sealed and waterproof path to the first end of the through-shaft flexible circuit board is formed at the first through hole of the first housing, and the electrical connection between the through-shaft flexible circuit board and the first transition circuit board is realized.
  • the same side of the first annular seal component is attached to the first end and the first housing, the first annular sealing assembly is compact in structure and easy to assemble, the first annular sealing assembly forms a complete sealing path for the first end of the flexible circuit board through the shaft, so that the first housing inside and outside isolation.
  • the first annular seal assembly includes an annular sealant and an annular rigid plate, and the annular rigid plate is attached by the annular sealant.
  • the first end of the flexible circuit board and the first casing are passed through the shaft.
  • the ring-shaped rigid board is fixed on the first end of the through-shaft flexible circuit board and the first housing by using ring-shaped sealant.
  • the annular sealant and the annular rigid plate form a complete sealing path to the first end of the through-shaft flexible circuit board, and external dust or water cannot enter the interior of the first housing through the first through hole of the first housing, so that the first Devices inside the housing are effectively protected.
  • the use of a rigid ring-shaped rigid plate can reduce the pushing effect on the first ring-shaped sealing assembly due to excessive deformation of the shaft-through flexible circuit board to a certain extent, and improve the sealing effect of the first ring-shaped sealing assembly.
  • the annular sealant has an integrated layered structure, for example, adhesive backing, and this assembly method is easy to operate.
  • the ring sealant includes a first ring sealant and a second ring sealant, and the second ring sealant is located on the first ring sealant. Radially outside of the shaft, the first end of the through-axis flexible circuit board and the inner ring area of the annular rigid plate are bonded by the first annular glue, and the first shell and the outer ring area of the annular rigid plate are bonded by the second annular glue. This method can reduce the colloidal material consumption, and the dimensional tolerance is easy to control.
  • the first end of the through-axis flexible circuit board is set as a planar extension
  • the plane extension part is electrically connected with the first switching circuit board.
  • the first end of the through-shaft flexible circuit board penetrates through the first through hole of the first housing and is connected to the first transfer circuit board in the form of a planar extension, so that the through-axis flexible circuit board and the first transfer circuit can be realized electrical connections to the board.
  • the first end of the through-shaft flexible circuit board is set as a bending portion, The bent portion is electrically connected to the first switching circuit board.
  • the first via hole is set at the position of the first housing close to the rotating shaft mechanism, the first end of the through-axis flexible circuit board and the first transfer circuit board are arranged closer to the rotating shaft mechanism, so that the first housing is in the X direction Larger spaces can be formed to accommodate more devices on the first housing.
  • the end of the bent portion is supported on the first housing, and the other end of the bent portion is supported by a support assembly on the first shell. Two supporting positions are provided for the bending part on one plane, so as to realize reliable support of the bending part.
  • the bending portion includes a first plane portion, a transition connection portion, and a second plane portion connected in sequence, and the first The plane part and the second plane part are arranged at intervals, the first plane part extends into the first via hole, and the end of the second plane part away from the transition connection part is used as the end of the bending part and is supported on the first housing, and the second The plane portion is electrically connected to the first switching circuit board.
  • the support assembly includes a first pad and a second pad, the first pad and the second pad are respectively located on both sides of the first plane part, and the two sides of the first pad are respectively connected to the second plane part and the first plane part, and the two sides of the second gasket are respectively connected to the first plane part and the first shell.
  • the first plane part is supported on the first shell through the second spacer, and the second plane part is supported on the first plane part through the first spacer, so as to support the part of the bent part away from its end.
  • the bending portion includes a first plane portion, a transition connection portion, and a second plane portion connected in sequence, and the first The plane part and the second plane part are arranged at intervals, the first plane part extends into the first via hole, and the end of the second plane part away from the transition connection part is used as the end of the bending part and is supported on the first housing, and the second The plane portion is electrically connected to the first switching circuit board.
  • the support assembly includes a first gasket, two sides of the first gasket are respectively connected to the second plane part and the first plane part, and the side of the first plane part facing away from the first gasket is connected to the first shell. In this way, the part of the bending part away from the rotating shaft mechanism can be supported, and the protection of the flexible circuit board passing through the shaft can be formed.
  • the through-shaft flexible circuit board is a completely flexible circuit board, and the through-shaft flexible circuit board A first rigid piece is provided on a side of the first end of the circuit board facing away from the first annular sealing component.
  • the structural strength of the first end of the shaft-through flexible circuit board is increased by the first rigid sheet, which facilitates the connection and cooperation between the first end of the shaft-through flexible circuit board and the first transfer circuit board, and also facilitates the first connection of the shaft-through flexible circuit board.
  • the end and the inner ring area of the annular rigid plate are reliably bonded by the annular sealant, so as to improve the effective sealing of the through-shaft flexible circuit board at the first through hole of the first housing.
  • the through-shaft flexible circuit board is a rigid-flex circuit board, and the through-shaft flexible circuit board
  • the circuit board includes a connected first flexible circuit board and a first rigid circuit board.
  • the first flexible circuit board straddles the shaft mechanism.
  • the circuit board is electrically connected.
  • the first rigid circuit board of the rigid-flex circuit board meets the structural strength requirements, and there is no need to install rigid sheets to improve the structural strength, which can simplify assembly operations and improve production efficiency.
  • the first switch circuit board is a fully flexible circuit board
  • the first A second rigid plate is provided on the side of an adapter circuit board facing away from the first annular sealing assembly. The structural strength of the part of the first transfer circuit board is increased by the second rigid sheet, which facilitates the connection and cooperation between the first end of the through-shaft flexible circuit board and the first transfer circuit board.
  • the first transfer circuit board is a rigid-flex circuit board
  • the first An adapter circuit board includes a connected second flexible circuit board and a second rigid circuit board, and the second rigid circuit board is electrically connected with the first end of the through-shaft flexible circuit board.
  • the second rigid circuit board of the first transfer circuit board satisfies the structural strength requirement, and no rigid sheet is required to improve the structural strength, which simplifies the assembly operation and improves the production efficiency.
  • the first switch circuit board is provided with a second connector, It is used for connecting with predetermined components in the first housing. This facilitates the connection between the first interposer circuit board and predetermined components.
  • the first housing includes a first middle frame, and the first The hole is set on the first middle frame, and the first switching circuit board is set on the first middle frame. More components are arranged in the first middle frame, the rear side of the first middle frame is used for setting the back case, and the front side of the first middle frame is used for setting the flexible screen.
  • the first middle frame has a first accommodating groove communicating with the first through hole, and the first annular sealing component is accommodated in the first accommodating groove. Arranging the first connector and the first annular sealing assembly in the first receiving groove of the first middle frame can reduce the thickness dimension of the first housing.
  • the foldable electronic device further includes a second transfer circuit board and Second ring seal assembly.
  • the second casing has a second through hole, the second transfer circuit board is arranged in the second case, the second end of the through-shaft flexible circuit board is passed through the second through hole and is electrically connected with the second transfer circuit board .
  • the second annular sealing assembly is arranged around the joint of the through-shaft flexible circuit board and the second transition circuit board, and is used for sealing the gap between the second end of the through-shaft flexible circuit board and the second via hole.
  • a complete sealing path is formed around the second end of the through-shaft flexible circuit board to effectively seal the gap between the second end of the through-shaft flexible circuit board and the second through hole of the second housing.
  • the same side of the second annular seal component is attached to the second end of the through-shaft flexible circuit board and the The second housing, the second annular sealing assembly has a compact structure and is easy to assemble.
  • the second annular sealing assembly forms a complete sealing path to the second end of the penetrating flexible circuit board to isolate the inside of the second housing from the outside.
  • FIG. 1 is a three-dimensional assembly diagram of a foldable electronic device provided by an embodiment of the present application
  • Fig. 2 is a three-dimensional sectional view along line A-A in Fig. 1;
  • FIG. 3 is an exploded perspective view of the foldable electronic device of FIG. 1;
  • FIG. 4 is a schematic diagram of the assembly of the foldable electronic device in FIG. 3 after the first casing, the second casing, and the through-shaft flexible circuit board are installed on the shaft mechanism;
  • FIG. 5 is an assembly diagram of the foldable electronic device in FIG. 4 after assembling the first annular sealing assembly and the second annular sealing assembly;
  • Fig. 6 is a further perspective exploded view of the foldable electronic device in Fig. 3, the first housing, the second housing and the rotating shaft mechanism are not shown;
  • Fig. 7 is a partial cross-sectional view of a foldable electronic device provided by another embodiment of the present application.
  • Fig. 8 is a partial sectional view along line A-A in Fig. 1;
  • Fig. 9 is a cross-sectional view along line B-B in Fig. 1 .
  • the foldable electronic device provided in the following embodiments of the present application may be a mobile phone, a palmtop computer, a notebook computer, or a tablet computer.
  • FIG. 1 is a three-dimensional assembly view of a foldable electronic device provided by an embodiment of the present application
  • FIG. 2 is a three-dimensional cross-sectional view along line A-A in FIG. 1
  • the foldable electronic device provided by the embodiment of the present application includes a hinge mechanism 10 , a first housing 20 , a second housing 30 and a flexible screen (not shown).
  • the rotating shaft mechanism 10 , the first housing 20 and the second housing 30 shown in FIG. 1 are all simplified.
  • the first housing 20 and the second housing 30 are respectively rotatably connected to two sides of the rotating shaft mechanism 10 so that the first housing 20 and the second housing 30 can be unfolded or folded relative to each other.
  • the rotation axes of the first housing 20 and the second housing 30 are arranged in parallel and at intervals.
  • the flexible screen is disposed on the first casing 20 and the second casing 30 .
  • the first casing 20 and the second casing 30 are unfolded on both sides of the hinge mechanism 10, and the flexible screen is in the unfolded state.
  • the first casing 20 and the second casing 30 rotate relative to the shaft mechanism 10, so that the angle between the first casing 20 and the second casing 30 Less than 180° and greater than 0°.
  • the first casing 20 and the second casing 30 are stacked opposite to each other, and the flexible screen follows the bending of the first casing 20 and the second casing 30 .
  • the flexible screen can be folded inwardly or outwardly. Inwardly folding means that the flexible screen is located between the first housing 20 and the second housing 30 after folding. Outwardly folding means that the flexible screen is packaged after folding. Covering the outside of the first casing 20 and the second casing 30 .
  • the foldable electronic device can also use multiple hinge mechanisms 10 and more than two shells to form a more foldable structure.
  • Different components are provided in the housing of the foldable electronic device, such as printed circuit boards, processors, memory, camera components, etc., and these components can be respectively installed in the first housing 20 or the second housing 30 .
  • components such as a first printed circuit board, a processor, and a memory are arranged in the first casing 20
  • components such as a second printed circuit board and a camera assembly are arranged in the second casing 30 .
  • a shaft-through flexible circuit board 40 can be arranged on the shaft mechanism 10, and the shaft-through flexible circuit board 40 is straddled on the shaft mechanism 10, and the two ends of the shaft-through flexible circuit board 40 are respectively connected.
  • the electrical connection of devices in different housings can be realized.
  • the through-shaft flexible circuit board 40 between the first housing 20 and the second housing 30 needs to be provided with a certain redundant length, for example, some areas of the through-shaft flexible circuit board 40 can be set to meander or bend In order to meet the deformation requirements of the axial flexible circuit board 40 during the folding or unfolding of the two housings.
  • a part of the shaft-through flexible circuit board 40 should be installed on the housing or the rotating shaft mechanism 10 to avoid excessive deformation of the shaft-through flexible circuit board 40 during the opening and closing of the two housings.
  • the gap between the flexible circuit board 40 and the through hole of the housing enters the interior of the housing, which will cause failure of the components in the housing.
  • a foldable electronic device which includes a rotating shaft mechanism, a first case, a second case and a shaft-through flexible circuit
  • the board, the first shell and the second shell are respectively rotatably connected to both sides of the rotating shaft mechanism, and the middle part of the penetrating flexible circuit board straddles the rotating shaft mechanism.
  • the X direction refers to the left and right direction of the foldable electronic device after unfolding
  • the Y direction refers to the axis direction of the rotating shaft mechanism
  • the X direction and the Y direction are perpendicular to each other.
  • a printed circuit board is arranged inside the first housing, and one end of the flexible circuit board through the shaft is electrically connected to the printed circuit board.
  • the first housing has a through hole near the rotating shaft mechanism. One end of the through-shaft flexible circuit board passes through the through hole of the first housing. Adhesive extending along the Y direction is pasted on the first housing near the via hole for fixing the through-shaft flexible circuit board, which can play a dustproof and waterproof effect to a certain extent.
  • a fixed steel sheet extending along the Y direction is provided at the through hole of the first casing, the fixed steel sheet has a first end and a second end distributed along the X direction, and the first end is fixed on the first casing , on the bottom side of the second end of the fixed steel sheet, stick foam extending along the Y direction and press the foam on the shaft-through flexible circuit board, so that the back glue and foam are located on the opposite sides of the shaft-through flexible circuit board. side, so that the printed circuit board is supported on the upper side of the fixed steel sheet.
  • the above-mentioned foldable electronic device can realize the dustproof and waterproof effect of the axial flexible circuit board in the X direction by setting the back glue, the fixed steel sheet and the foam on the axial flexible circuit board, but it cannot prevent the dust and water ingress in the Y direction.
  • the reason is that both the back glue and the foam extend along the Y direction, and there is a gap between the two ends of the back glue and foam in the Y direction and the inner wall of the through hole of the first shell, and a complete sealing path cannot be realized, and probably only Meet the waterproof requirements of IPX3 level.
  • the IPX3 waterproof rating can prevent the sprayed water from intruding, rainproof or prevent the water sprayed from the direction with an angle of less than 60 degrees from the vertical from invading the electrical appliances and causing damage.
  • FIG. 3 is a three-dimensional exploded view of the foldable electronic device in Fig. 1;
  • Fig. 4 is a schematic diagram of the assembly of the foldable electronic device in Fig. 3 after the first housing, the second housing and the through-shaft flexible circuit board are installed on the shaft mechanism;
  • FIG. 5 is an assembly diagram of the foldable electronic device in FIG. 4 after assembling the first annular sealing assembly and the second annular sealing assembly.
  • the rotating shaft mechanism 10 , the first housing 20 and the second housing 30 shown in FIGS. 3 to 5 are all simplified.
  • the embodiment of the present application provides a foldable electronic device, referring to Figures 3 to 5, the foldable electronic device includes: a rotating shaft The mechanism 10 , the first housing 20 , the second housing 30 , the through-shaft flexible circuit board 40 , the first transfer circuit board 50 and the first annular sealing assembly 60 .
  • the first housing 20 and the second housing 30 are respectively rotatably connected to two sides of the rotating shaft mechanism 10 so that the first housing 20 and the second housing 30 can be unfolded or folded relative to each other.
  • the first housing 20 has a first via hole 211 .
  • the first switching circuit board 50 is disposed on the first casing 20 .
  • the middle part 40a of the shaft-through flexible circuit board 40 straddles the shaft mechanism 10, and the first end 40b of the shaft-through flexible circuit board 40 penetrates through the first via hole 211 and is electrically connected with the first transfer circuit board 50.
  • the second end 40c of the flexible circuit board 40 extends to the second housing 30 .
  • the first annular sealing assembly 60 is disposed around the joint 71a between the through-shaft flexible circuit board 40 and the first transfer circuit board 50, for sealing the first end 40b of the through-shaft flexible circuit board 40 and the first via hole 211. gap.
  • the ring in the first ring seal assembly 60 refers to a closed ring area, such as a circular ring, an elliptical ring, a square shape, and the like.
  • the first annular sealing component 60 realizes the sealing function, and its shape can be set according to the shape of the hole.
  • the first through hole 211 of the first casing 20 is roughly rectangular, and the first annular sealing component 60 may be configured in a square frame shape adapted to the first through hole 211 to achieve effective sealing.
  • the foldable electronic device provided by the embodiment of the present application adopts the combination of the through-axis flexible circuit board 40 and the first transfer circuit board 50 to connect the devices respectively located in the first housing 20 and the second housing 30, and the through-axis flexible circuit board
  • the board 40 straddles the rotating shaft mechanism 10, and the first transfer circuit board 50 is arranged on the first housing 20, and the first end 40b of the through-axis flexible circuit board 40 passes through the first through hole 211 of the first housing 20 and connects with the The first switching circuit board 50 is electrically connected.
  • the first annular sealing assembly 60 is disposed around the joint 71a between the through-shaft flexible circuit board 40 and the first transfer circuit board 50, and the first annular sealing assembly 60 forms a complete sealing path to the first end 40b of the through-shaft flexible circuit board 40 , dustproof and waterproof can be realized in the X direction and Y direction at the first through hole 211 of the first housing 20, so that the inside of the first housing 20 is isolated from the outside world, and in the case of limited space, the flexible circuit through the shaft
  • the first end 40b of the board 40 can achieve IPX7 and above dust and water resistance.
  • the through-shaft flexible circuit board 40 can be reliably fixed on the first housing 20 .
  • the IPX7 waterproof level can prevent water immersion when immersed in water, and can prevent 30 minutes of immersion in water as deep as 1 meter.
  • the first housing 20 is provided with a first printed circuit board (not shown), the first printed circuit board is provided with devices such as a processor and a memory, and the second housing 30 is provided with a second printed circuit board.
  • the circuit board (not shown in the figure), and the second printed circuit board are provided with components such as camera components.
  • the through-axis flexible circuit board 40 and the first transfer circuit board 50 are combined to connect devices located in different housings, the first end 40b of the through-axis flexible circuit board 40 is connected to one end of the first transfer circuit board 50, the first The other end of the adapter circuit board 50 is connected to the first printed circuit board, and the second end 40c of the through-shaft flexible circuit board 40 is connected to the second printed circuit board, so that the electrical connection of the devices in the two housings can be realized .
  • the first intermediary circuit board 50 is used as the first printed circuit board; or, part of the lines passing through the first end 40 b of the flexible circuit board 40 is directly connected to the components of the first housing 20 . All of these ways can realize the electrical connection of the devices located in the first housing 20 and the second housing 30 respectively.
  • the rotating shaft mechanism 10 When setting up the rotating shaft mechanism, referring to FIG. 2 and FIG. 3 , the rotating shaft mechanism 10 includes a main shaft 11 , a first baffle 12 and a second baffle 13 rotatably connected to both sides of the main shaft 11 .
  • the main shaft 11 includes a connected main outer shaft 111 and a main inner shaft 112, and the middle part 40a of the flexible circuit board 40 passes through between the main outer shaft 111 and the main inner shaft 112, or the middle part 40a of the flexible circuit board 40 straddles the surface of the main inner shaft 112 .
  • a first accommodating space 121 is formed between the first baffle 12 and the first housing 20 for accommodating a part of the through-shaft flexible circuit board 40 located on one side of the main shaft 11 .
  • a second accommodating space 131 is formed between the second baffle plate 13 and the second housing 30 for accommodating a part of the through-shaft flexible circuit board 40 located on the other side of the main shaft 11 .
  • the flexible screen adopts internal folding
  • the two ends of the flexible screen are respectively fixed on the first shell 20 and the second shell 30, and the middle part of the flexible screen corresponds to the first baffle 12, the main inner shaft 112 and the second baffle 13 set up.
  • the main inner shaft 112 , the first baffle 12 and the second baffle 13 jointly support the middle of the flexible screen.
  • the first end 40 b of the through-shaft flexible circuit board 40 is arranged around the first connector 71 through the electrical connection between the first connector 71 and the first interposer circuit board 50 .
  • the first connector 71 By arranging the first connector 71 between the through-axis flexible circuit board 40 and the first transfer circuit board 50, a certain distance is formed between the through-axis flexible circuit board 40 and the first transfer circuit board 50 in the thickness direction, so as to place the first An annular sealing assembly 60 forms a complete sealed and waterproof path to the first end 40b of the through-shaft flexible circuit board 40 at the first through hole 211 of the first housing 20, and realizes the through-shaft flexible circuit board 40 and the first transition Electrical connection of the circuit board 50 .
  • the first connector 71 includes a receptacle 711 and a plug 712 that can be plugged into each other. After the receptacle 711 and the plug 712 are connected, the two can be fixed and signal transmission can be realized.
  • a socket 711 is provided on the first end 40 b of the through-axis flexible circuit board 40
  • a plug 712 is provided on the first switching circuit board 50 .
  • the first switching circuit boards 50 are electrically connected.
  • the installation positions of the socket and the plug can be interchanged without affecting the detachable connection between the through-shaft flexible circuit board and the first transition circuit board.
  • FIG. 6 is a further three-dimensional exploded view of the foldable electronic device in FIG. 3 .
  • the same side of the first annular seal assembly 60 is attached to the first end 40 b of the through-shaft flexible circuit board 40 and the first housing 20 , the first annular seal assembly 60 Compact in structure and easy to assemble, the first annular sealing assembly 60 forms a complete sealing path to the first end 40b of the penetrating flexible circuit board 40 to isolate the inside of the first casing 20 from the outside.
  • the first annular seal assembly 60 When setting the first annular seal assembly 60, referring to Fig. 2 and Fig. 6, the first annular seal assembly 60 includes an annular sealant 61 and an annular rigid plate 62, and the annular rigid plate 62 is attached to the shaft-through flexible circuit through the annular sealant 61 The first end 40b of the plate 40 and the first housing 20 .
  • the rings in the ring sealant 61 and the ring rigid plate 62 can be understood with reference to the rings in the first ring seal assembly 60 .
  • the ring-shaped rigid board 62 is fixed on the first end 40 b of the through-shaft flexible circuit board 40 and the first housing 20 by using the ring-shaped sealant 61 .
  • the annular sealant 61 and the annular rigid plate 62 form a complete sealing path to the first end 40b of the flexible circuit board 40 through the shaft.
  • the dust or water cannot continue to enter the first casing 20 through the first through hole 211 of the first casing 20, so that the devices in the first casing 20 are effectively protected.
  • the flexible through-shaft flexible circuit board 40 will be deformed to form a pushing effect on the first annular seal assembly 60, and it is possible that the annular sealant 61 Pushing away from the first housing 20 will cause dustproof and waterproof failure.
  • Adopting the annular rigid plate 62 with a certain rigidity can reduce to a certain extent the pushing effect on the first annular sealing assembly 60 due to excessive deformation of the shaft-through flexible circuit board 40 and improve the sealing effect of the first annular sealing assembly 60 .
  • the annular rigid plate 62 can be made of steel sheet or other materials with certain rigidity.
  • the first implementation of the annular sealant is: referring to FIG. 2 , the annular sealant 61 has an integrated layered structure, such as adhesive backing.
  • This assembly method is easy to operate. Exemplarily, during assembly, the adhesive is first fixed on the annular rigid plate 62, and then the side of the annular rigid plate 62 provided with the adhesive is pasted on the first end 40b of the through-shaft flexible circuit board 40 and the first shell body 20 , so that the gap between the first through hole 211 of the first housing 20 and the through-shaft flexible circuit board 40 is sealed.
  • the ring sealant includes a first ring sealant and a second ring sealant
  • the second ring sealant is located radially outside the first ring sealant, and passes through the first end of the flexible circuit board and the ring sealant.
  • the inner ring area of the rigid plate is bonded by the first annular glue
  • the first shell and the outer ring area of the annular rigid plate are bonded by the second annular glue.
  • the first annular glue and the second annular glue can use the same or different glues, this way can reduce the glue material consumption, and the dimensional tolerance is easy to control.
  • the first annular glue is dispensing glue
  • the second annular glue is back glue
  • the inner ring area and the outer ring area of the annular rigid plate are respectively provided with dispensing glue and back glue
  • the annular The rigid board is pasted on the first end of the through-shaft flexible circuit board and the surface of the first housing through different glues.
  • both the first annular adhesive and the second annular adhesive can use back adhesive, and the two annular adhesives can be separated by a certain distance to reduce the amount of adhesive used.
  • the first implementation of connecting the through-shaft flexible circuit board and the first transfer circuit board is: referring to FIG.
  • the switching circuit board 50 is electrically connected.
  • the first end 40b of the shaft-through flexible circuit board 40 penetrates the first through hole 211 of the first housing 20 and is connected to the first transfer circuit board 50 in the form of a planar extension 41, so that the shaft-through flexible circuit board can be realized. 40 and the electrical connection of the first switching circuit board 50.
  • the second way to connect the through-shaft flexible circuit board and the first transfer circuit board is: referring to Fig. 2, Fig. 8 and Fig. 9, the first end 40b of the through-shaft flexible circuit board 40 is set The folding portion 42 is electrically connected to the first switching circuit board 50 .
  • the first end 40b of the through-shaft flexible circuit board 40 passes through the first through hole 211 of the first housing 20 and then bends toward the shaft mechanism 10 . position, the position of the first end 40b of the through-axis flexible circuit board 40 and the first transfer circuit board 50 are set closer to the rotating shaft mechanism 10, so that the first housing 20 can form a larger space 22 in the X direction, so that in the second A housing 20 accommodates more devices. In this way, the electrical connection between the through-shaft flexible circuit board 40 and the first transfer circuit board 50 can be realized.
  • the bending part 42 can be bent and extended toward the rotating shaft mechanism 10 (that is, the X direction), and a belt-shaped through-axis flexible circuit board 40 is selected, and one end of the through-axis flexible circuit board 40 is bent by 180° to form a bend.
  • the bent portion 42, the through-shaft flexible circuit board 40 with the bent portion 42 is easy to form.
  • the bent portion can also be bent and extended toward the Y direction or other directions, and an L-shaped or other specific shaped through-axis flexible circuit board is used to form the bent portion by bending.
  • the end 42 a of the bent portion 42 is supported on the first shell 20 , and the bent portion The other end of 42 is supported on the first housing 20 through the support assembly 43 .
  • the end 42a of the bent portion 42 is the end of the bent portion 42 in the extending direction.
  • the end 42 a of the bending portion 42 is a part close to the rotating shaft mechanism 10 .
  • the bending part 42 When setting the bending part, referring to Fig. 8, the bending part 42 includes a first plane part 421, a transition connecting part 422 and a second plane part 423 connected in sequence, and the first plane part 421 and the second plane part 423 are arranged at intervals , the first plane part 421 is extended into the first via hole 211, and the end of the second plane part 423 away from the transition connection part 422 is used as the end 42a of the bent part 42 and supported on the first housing 20.
  • the second plane part 423 It is electrically connected with the first switching circuit board 50 .
  • the length of the second planar portion 423 is greater than the length of the first planar portion 421 in the X direction.
  • the first planar portion 421 and the second planar portion 423 may be parallel to each other, and a partial area of the first end 40 b of the through-axis flexible circuit board 40 and the first interposer circuit board 50 are also arranged in parallel to each other. Setting the second plane portion 423 parallel to the plane where the first casing 20 is located facilitates arranging the first interposer circuit board 50 , the first connector 71 and the first annular sealing assembly 60 in a limited space.
  • the support assembly 43 includes a first gasket 431 and a second gasket 432, and the first gasket 431 and the second gasket 432 are respectively Located on both sides of the first planar portion 421, both sides of the first gasket 431 are respectively connected to the second planar portion 423 and the first planar portion 421, and both sides of the second gasket 432 are respectively connected to the first planar portion 421 and the first planar portion 421.
  • the first casing 20 is referring to Fig. 6 and Fig. 8
  • the support assembly 43 includes a first gasket 431 and a second gasket 432, and the first gasket 431 and the second gasket 432 are respectively Located on both sides of the first planar portion 421, both sides of the first gasket 431 are respectively connected to the second planar portion 423 and the first planar portion 421, and both sides of the second gasket 432 are respectively connected to the first planar portion 421 and the first planar portion 421.
  • the first plane part 421 is supported on the first housing 20 through the second gasket 432, and the second plane part 423 is supported on the first plane part 421 through the first gasket 431, so that the bending part 42 can be far away from its end. 42a for support.
  • the two sides of the gasket can be connected to the adjacent structure by bonding, for example, the two sides of the first gasket 431 are respectively connected to the first planar part 421 and the second planar part 423 through the back glue, and the second mat Two sides of the sheet 432 are respectively connected to the first shell 20 and the first planar portion 421 through adhesive backing.
  • the first plane portion 421 and the second plane portion 423 are arranged parallel to each other.
  • the first via hole 211 of the first housing 20 is elongated.
  • the second gasket 432 is configured as a long strip.
  • the first spacer 431 and the second spacer 432 are respectively arranged on both sides of the first plane part 421 along the width direction of the through-shaft flexible circuit board 40, so that one end of the bending part 42 can be supported by using fewer spacers.
  • the first spacer 431 and the second spacer 432 can also be set in other shapes.
  • the material of the gasket can be set as required.
  • the first spacer 431 is foam
  • the second spacer 432 is a rigid sheet.
  • the second spacer 432 with rigidity can support the first plane part 421 to a certain height
  • the first spacer with elasticity 431 can support one end of the second planar portion 423 , so that the second planar portion 423 is supported on the first casing 20 in a manner parallel to the first casing 20 .
  • the elastic first gasket 431 is connected between the first planar portion 421 and the second planar portion 423 to form protection for the through-shaft flexible circuit board 40 and reduce abrasion caused by the rigid gasket.
  • the second implementation of connecting the bending part and the support assembly is: the support assembly includes a first gasket, and the two sides of the first gasket are respectively connected to the second plane part and the first plane part, and the first plane part faces away from the first plane part.
  • One side of a spacer is connected to the first casing. In this way, the part of the bending part away from the rotating shaft mechanism can be supported, and the protection of the flexible circuit board passing through the shaft can be formed.
  • Adhesive adhesive can be used to connect the first plane part and the first shell.
  • the first implementation of the shaft-through flexible circuit board is as follows: Referring to Fig. 6 and Fig. 8, the shaft-through flexible circuit board 40 is a complete flexible circuit board, and the first end 40b of the shaft-through flexible circuit board 40 faces away from the first annular seal assembly One side of 60 is provided with a first rigid piece 44 .
  • the structural strength of the first end 40b of the shaft-through flexible circuit board 40 is increased by the first rigid sheet 44, which facilitates the connection and cooperation between the first end 40b of the shaft-through flexible circuit board 40 and the first transfer circuit board 50, and also facilitates the shaft-through
  • the first end 40b of the flexible circuit board 40 and the inner ring area of the annular rigid plate 62 are reliably bonded by the annular sealant 61, and the flexible circuit board 40 is lifted to the first through hole 211 of the first housing 20
  • the effective sealing of the first housing 20 and the second housing 30 reduces the excessive deformation of the axial flexible circuit board 40 during the folding or unfolding movement of the first housing 20 and the second housing 30, so that the first end 40b of the axial flexible circuit board 40 separates from the annular rigid plate 62 happensing.
  • the first rigid piece 44 can be mounted on the first end 40b of the through-shaft flexible circuit board 40 by adhesive or other methods.
  • the bent portion 42 when the first end 40b of the through-shaft flexible circuit board 40 is a bent portion 42, the bent portion 42 includes a first planar portion 421, a transition connecting portion 422 and a second planar portion that are sequentially connected. 423, the bending portion 42 having the first plane portion 421, the transition connecting portion 422 and the second plane portion 423 can be formed by bending the through-axis flexible circuit board 40 by 180°, and the first rigid sheet 44 is arranged on the second plane The portion 423 faces one side of the first planar portion 421 .
  • the first spacer 431 in the support assembly 43 is sandwiched between the first rigid piece 44 and the first planar portion 421, thereby supporting the first end 40b of the through-axis flexible circuit board 40 at the second on a casing 20 .
  • the first rigid piece 44 is arranged at the first end 40b of the through-shaft flexible circuit board 40 facing away from the first One side of the circuit board 50 is transferred, and the first end 40 b of the through-shaft flexible circuit board 40 is inserted into the first through hole 211 of the first casing 20 .
  • Both sides of the first rigid sheet 44 can be respectively fixed on the first casing 20 and the first interposer circuit board 50 by adhesive.
  • the second implementation of the shaft-through flexible circuit board is: the shaft-through flexible circuit board is a rigid-flex circuit board, and the shaft-through flexible circuit board includes a first flexible circuit board and a first rigid circuit board that are connected, and the first flexible circuit board
  • the first rigid circuit board is used as the first end of the through-axis flexible circuit board and is electrically connected with the first transfer circuit board across the rotating shaft mechanism.
  • the first rigid circuit board of the rigid-flex circuit board meets the structural strength requirements, and there is no need to install rigid sheets to improve the structural strength, which can simplify assembly operations and improve production efficiency.
  • the first connector is provided, the first connector is provided on the first rigid circuit board for electrical connection with the first switching circuit board.
  • the bent part when the first end of the through-shaft flexible circuit board is a bent part, the bent part includes a first plane part, a transition connection part and a second plane part connected in sequence, and the first plane part and the transition connection part are arranged It is a part of the first flexible circuit board, the second planar part is set as the first rigid circuit board, and the first rigid circuit board is bent to a predetermined position to be electrically connected with the first switching circuit board.
  • the first spacer in the support assembly is interposed between the first rigid circuit board and the first plane part, and supports the first end of the through-shaft flexible circuit board on the first housing.
  • the rigid first rigid circuit board is directly inserted into the first through hole of the first housing, and then electrically connected to the first transfer circuit board. connect.
  • the first rigid circuit board is supported on the first housing.
  • the first implementation of the first transfer circuit board is as follows: referring to FIG. 6 and FIG. 8 , the first transfer circuit board 50 is a fully flexible circuit board, and the first transfer circuit board 50 faces away from the first annular seal assembly 60 A second rigid piece 51 is provided on one side. The local structural strength of the first switchover circuit board 50 is increased by the second rigid piece 51 , which facilitates the connection and cooperation between the first end 40 b of the through-shaft flexible circuit board 40 and the first switchover circuit board 50 .
  • the second implementation of the first switch circuit board is: the first switch circuit board is a rigid-flex circuit board, the first switch circuit board includes a second flexible circuit board and a second rigid circuit board connected, the second The rigid circuit board is electrically connected to the first end of the through-shaft flexible circuit board.
  • the second rigid circuit board of the first transfer circuit board satisfies the structural strength requirement, and no rigid sheet is required to improve the structural strength, which simplifies the assembly operation and improves the production efficiency.
  • the first switching circuit board 50 is provided with a second connector 72 for connecting with the first housing 20 within the predetermined device connection.
  • the structure and connection relationship of the second connector 72 can refer to the situation of the first connector 71 .
  • the predetermined device may be a printed circuit board or other device.
  • a first printed circuit board (not shown in the figure) is disposed in the first housing 20 , and the first transfer circuit board 50 and the first printed circuit board are connected through the second connector 72 .
  • the first connector 71 is disposed on the first end 50 a of the first interposer circuit board 50
  • the second connector 72 is disposed on the second end 50 b of the first interposer circuit board 50 .
  • the orientation of the first end 50a and the second end 50b of the first switching circuit board 50 can be set according to requirements. For example, in the embodiment shown in FIG. The ends 50b are on the same plane and the directions of the two are perpendicular to each other; for another example, in the embodiment shown in FIG. of the same orientation.
  • the foldable electronic device further includes a second transfer circuit board 80 and a second ring-shaped sealing component 90 .
  • the second casing 30 has a second through hole 311, the second switching circuit board 80 is arranged on the second casing 30, the second end 40c of the through-shaft flexible circuit board 40 is passed through the second through hole 311 and connected to the second The switching circuit board 80 is electrically connected.
  • the second annular sealing assembly 90 is arranged around the joint 73a between the through-shaft flexible circuit board 40 and the second transfer circuit board 80, and is used to seal the gap between the second end 40c of the through-shaft flexible circuit board 40 and the second via hole 311. gap.
  • a complete sealing path is formed around the second end 40c of the through-shaft flexible circuit board 40 to effectively seal the gap between the second end 40c of the through-shaft flexible circuit board 40 and the second through hole 311 of the second housing 30 .
  • the assembly relationship of the second end 40c of the through-shaft flexible circuit board 40 , the second housing 30 , the second transition circuit board 80 and the second annular seal assembly 90 can refer to the relevant structure of the second end 40b of the through-shaft flexible circuit board 40 connection status.
  • the through-shaft flexible circuit board 40 can be electrically connected to the second adapter circuit board 80 through the third connector 73 .
  • the second end 40c of the through-axis flexible circuit board 40 can be in the form of a planar extension or a bent portion with reference to the first end 40b.
  • the second annular seal assembly 90 When the second annular seal assembly 90 is provided, the same side of the second annular seal assembly 90 is attached to the second end 40c of the through-shaft flexible circuit board 40 and the second housing 30, and the second annular seal assembly 90 has a compact structure, Moreover, it is easy to assemble, and the second annular sealing assembly 90 forms a complete sealing path to the second end 40c of the penetrating flexible circuit board 40, so as to isolate the inside of the second housing 30 from the outside.
  • the first casing 20 When setting up the first casing, referring to FIG. 2 and FIG. 3 , the first casing 20 includes a first middle frame 21, a first through hole 211 is set in the first middle frame 21, and a first switching circuit board 50 is set in the first middle frame 21.
  • a middle box 21 More components are arranged in the first middle frame 21, the rear side 21a of the first middle frame 21 is used for setting a back case (not shown in the figure), and the front side 21b of the first middle frame 21 is used for setting a flexible screen.
  • the first middle frame 21 has a first accommodating groove 212 communicating with the first through hole 211 , and the first annular sealing assembly 60 is accommodated in the first accommodating groove 212 .
  • the first transfer circuit board 50 and the through-shaft flexible circuit board 40 are connected through the first connector 71 , and the first connector 71 and the first annular seal assembly 60 are arranged in the first receiving groove 212 of the first middle frame 21 In this way, the thickness of the first shell 20 can be reduced, so that the structure occupies less space.
  • the second casing 30 When setting the second casing, referring to Fig. 2 and Fig. 3, the second casing 30 includes the second middle frame 31, the second via hole 311 is set on the second middle frame 31, and the second switching circuit board 80 is set on the second middle frame 31. Second middle box 31.
  • the second middle frame 31 has a second accommodating groove 312 communicating with the second through hole 311 , and the second annular sealing assembly 90 is accommodated in the second accommodating groove 312 , so that the thickness of the second casing 30 can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Telephone Set Structure (AREA)

Abstract

本申请实施例提供了一种可折叠电子设备。采用穿轴柔性电路板(40)和第一转接电路板(50)结合去连接分别位于第一壳体(20)和第二壳体(30)内的器件，穿轴柔性电路板(40)横跨于转轴机构(10)，在第一壳体(20)设置第一转接电路板(50)，穿轴柔性电路板(40)的第一端穿过第一壳体(20)的第一过孔(211)后与第一转接电路板(50)电性连接。将第一环形密封组件(60)围绕穿轴柔性电路板(40)与第一转接电路板(50)的连接处(71a)设置，第一环形密封组件(60)形成对穿轴柔性电路板(40)第一端(40b)的完整密封路径，可对第一壳体(20)的第一过孔(211)处X方向和Y方向实现防尘防水，使第一壳体(20)内部和外界之间隔离，在有限空间的情况下，使穿轴柔性电路板(40)的第一端(40b)处达到IPX7及以上防尘防水能力。在第一壳体(20)和第二壳体(30)开合过程中，穿轴柔性电路板(40)能保持可靠固定在第一壳体(20)。

Description

一种可折叠电子设备
本申请要求于2021年06月08日提交国家知识产权局、申请号为202110640575.X、申请名称为“一种可折叠电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及终端技术领域，尤其涉及一种可折叠电子设备。
背景技术
具有柔性屏的可折叠电子设备，在展开时可提供较大的显示面积，而在折叠后整体结构紧凑而易于收纳。可折叠电子设备包括转轴机构和分别设于转轴机构两侧的壳体，两个壳体可以相对转轴机构转动以使两个壳体相对展开或折叠。两个壳体内设置印制电路板或其它器件，两个壳体内的器件可通过穿轴柔性电路板实现电性连接，穿轴柔性电路板穿过转轴机构，且穿轴柔性电路板的两端分别穿入两个壳体并连接至相应的器件。现有可折叠电子设备中的壳体在穿轴柔性电路板穿过的位置容易进尘或进水，造成壳体内器件的失效。
发明内容
本申请实施例提供一种可折叠电子设备，解决了现有可折叠电子设备中的壳体在穿轴柔性电路板穿过的位置容易进尘或进水而造成壳体内器件失效的问题。
为达到上述目的，本申请实施例采用如下技术方案：
第一方面，本申请实施例提供一种可折叠电子设备，包括：转轴机构、第一壳体、第二壳体、穿轴柔性电路板、第一转接电路板和第一环形密封组件。第一壳体和第二壳体分别转动连接于转轴机构的两侧，以使第一壳体和第二壳体能够相对展开或相对折叠。第一壳体具有第一过孔。第一转接电路板设于第一壳体。穿轴柔性电路板的中部横跨于转轴机构，穿轴柔性电路板的第一端穿设于第一过孔并与第一转接电路板电性连接，穿轴柔性电路板的第二端延伸至第二壳体。第一环形密封组件围绕穿轴柔性电路板与第一转接电路板的连接处设置，用于密封穿轴柔性电路板的第一端和第一过孔之间的间隙。
本申请实施例提供的可折叠电子设备，采用穿轴柔性电路板和第一转接电路板结合去连接分别位于第一壳体和第二壳体内的器件，穿轴柔性电路板横跨于转轴机构，在第一壳体设置第一转接电路板，穿轴柔性电路板的第一端穿过第一壳体的第一过孔后与第一转接电路板电性连接。将第一环形密封组件围绕穿轴柔性电路板与第一转接电路板的连接处设置，第一环形密封组件形成对穿轴柔性电路板第一端的完整密封路径，可对第一壳体的第一过孔处X方向和Y方向实现防尘防水，使第一壳体内部和外界之间隔离，在有限空间的情况下，使穿轴柔性电路板的第一端处达到IPX7及以上防尘防水能力。在第一壳体和第二壳体开合过程中，穿轴柔性电路板能保持可靠固定在第一壳体。
结合第一方面，在第一方面的第一种可能的实现方式中，穿轴柔性电路板的第一端通过第一连接器和第一转接电路板电连接，第一环形密封组件环绕第一连接器设置。通过在穿轴柔性电路板和第一转接电路板之间设置第一连接器，使穿轴柔性电路板和第一转接电路板在厚度方向形成一定间距，以放置第一环形密封组件，在第一壳体的第一过孔处形成对穿轴柔性电路板第一端的完整密封防水路径，并实现穿轴柔性电路板和第一转接电路板的电连接。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，第一环形密封组件的同一侧贴设于穿轴柔性电路板的第一端和第一壳体，该第一环形密封组件结构紧凑，而且容易装配，第一环形密封组件形成对穿轴柔性电路板第一端的完整密封路径，使第一壳体内部和外界之间隔离。
结合第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，第一环形密封组件包括环形密封胶和环形刚性板，环形刚性板通过环形密封胶贴设于穿轴柔性电路板的第一端和第一壳体。采用环形密封胶将环形刚性板固定在穿轴柔性电路板的第一端和第一壳体上。环形密封胶和环形刚性板形成对穿轴柔性电路板的第一端的完整密封路径，外部的尘或水不能通过第一壳体的第一过孔进入到第一壳体内部，使第一壳体内的器件得到有效保护。采用具有一定的刚性的环形刚性板，可在一定程度上降低因为穿轴柔性电路板变形过大而对第一环形密封组件的推顶作用，提升第一环形密封组件的密封效果。
结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，环形密封胶为一体层状结构，比如采用背胶，这种装配方式操作方便。
结合第一方面的第三种可能的实现方式，在第一方面的第五种可能的实现方式中，环形密封胶包括第一环形胶和第二环形胶，第二环形胶位于第一环形胶的径向外部，穿轴柔性电路板的第一端和环形刚性板的内环区域通过第一环形胶粘接，第一壳体和环形刚性板的外环区域通过第二环形胶粘接。这种方式可降低胶体用料，尺寸公差容易控制。
结合第一方面至第一方面的第五种可能的实现方式中任一项，在第一方面的第六种可能的实现方式中，穿轴柔性电路板的第一端设置为平面延伸部，平面延伸部和第一转接电路板电性连接。穿轴柔性电路板的第一端穿入第一壳体的第一过孔后以平面延伸部的方式与第一转接电路板连接，这样能实现穿轴柔性电路板和第一转接电路板的电性连接。
结合第一方面至第一方面的第五种可能的实现方式中任一项，在第一方面的第七种可能的实现方式中，穿轴柔性电路板的第一端设置为弯折部，弯折部和第一转接电路板电性连接。当第一过孔设置在第一壳体靠近转轴机构的位置时，穿轴柔性电路板的第一端和第一转接电路板的位置更靠近转轴机构设置，这样第一壳体在X方向可形成更大空间，以在第一壳体上容置更多的器件。
结合第一方面的第七种可能的实现方式，在第一方面的第八种可能的实现方式中，弯折部的末端支撑在第一壳体上，弯折部的另一端通过支撑组件支撑在第一壳体上。在一个平面上对弯折部提供两个支撑位置，实现弯折部的可靠支撑。
结合第一方面的第八种可能的实现方式，在第一方面的第九种可能的实现方式中， 弯折部包括依次连接的第一平面部、过渡连接部和第二平面部，第一平面部和第二平面部相间隔设置，第一平面部伸入第一过孔设置，第二平面部远离过渡连接部的一端作为弯折部的末端并支撑在第一壳体上，第二平面部和第一转接电路板电性连接。支撑组件包括第一垫片和第二垫片，第一垫片和第二垫片分别位于第一平面部的两侧，第一垫片的两侧分别连接于第二平面部和第一平面部，第二垫片的两侧分别连接于第一平面部和第一壳体。第一平面部通过第二垫片支撑在第一壳体上，第二平面部通过第一垫片支撑在第一平面部上，这样能对弯折部远离其末端的部分进行支撑。
结合第一方面的第八种可能的实现方式，在第一方面的第十种可能的实现方式中，弯折部包括依次连接的第一平面部、过渡连接部和第二平面部，第一平面部和第二平面部相间隔设置，第一平面部伸入第一过孔设置，第二平面部远离过渡连接部的一端作为弯折部的末端并支撑在第一壳体上，第二平面部和第一转接电路板电性连接。支撑组件包括第一垫片，第一垫片的两侧分别连接于第二平面部和第一平面部，第一平面部背对第一垫片的一侧连接于第一壳体上。这样能实现对弯折部远离转轴机构的部分进行支撑，并形成对穿轴柔性电路板的保护。
结合第一方面至第一方面的第十种可能的实现方式中任一项，在第一方面的第十一种可能的实现方式中，穿轴柔性电路板为完全柔性电路板，穿轴柔性电路板的第一端背向第一环形密封组件的一侧设有第一刚性片。通过第一刚性片来增加穿轴柔性电路板第一端的结构强度，便于穿轴柔性电路板的第一端与第一转接电路板的连接配合，也便于穿轴柔性电路板的第一端和环形刚性板的内环区域之间通过环形密封胶可靠粘接，提升对穿轴柔性电路板在第一壳体的第一过孔处的有效密封。
结合第一方面至第一方面的第十种可能的实现方式中任一项，在第一方面的第十二种可能的实现方式中，穿轴柔性电路板为刚柔电路板，穿轴柔性电路板包括相连接的第一柔性电路板和第一刚性电路板，第一柔性电路板横跨于转轴机构，第一刚性电路板作为穿轴柔性电路板的第一端并与第一转接电路板电性连接。刚柔电路板的第一刚性电路板即满足结构强度需求，无需设置刚性片以提高结构强度，可简化装配操作，提高生产效率。
结合第一方面至第一方面的第十二种可能的实现方式中任一项，在第一方面的第十三种可能的实现方式中，第一转接电路板为完全柔性电路板，第一转接电路板背向第一环形密封组件的一侧设有第二刚性片。通过第二刚性片来增加第一转接电路板局部的结构强度，便于穿轴柔性电路板的第一端与第一转接电路板的连接配合。
结合第一方面至第一方面的第十二种可能的实现方式中任一项，在第一方面的第十四种可能的实现方式中，第一转接电路板为刚柔电路板，第一转接电路板包括相连接的第二柔性电路板和第二刚性电路板，第二刚性电路板与穿轴柔性电路板的第一端电性连接。第一转接电路板的第二刚性电路板即满足结构强度需求，无需设置刚性片以提高结构强度，可简化装配操作，提高生产效率。
结合第一方面至第一方面的第十四种可能的实现方式中任一项，在第一方面的第十五种可能的实现方式中，第一转接电路板设有第二连接器，用于和第一壳体内的预定器件连接。这样便于第一转接电路板和预定器件的连接。
结合第一方面至第一方面的第十五种可能的实现方式中任一项，在第一方面的第 十六种可能的实现方式中，第一壳体包括第一中框，第一过孔设于第一中框，第一转接电路板设于第一中框。第一中框内会布置较多的元器件，第一中框的后侧用于设置背壳，第一中框的前侧用于设置柔性屏。第一中框具有与第一过孔连通的第一容纳槽，第一环形密封组件容置于第一容纳槽内。将第一连接器和第一环形密封组件布置在第一中框的第一容纳槽内，可降低第一壳体的厚度尺寸。
结合第一方面至第一方面的第十六种可能的实现方式中任一项，在第一方面的第十七种可能的实现方式中，可折叠电子设备还包括第二转接电路板和第二环形密封组件。第二壳体具有第二过孔，第二转接电路板设于第二壳体，穿轴柔性电路板的第二端穿设于第二过孔并与第二转接电路板电性连接。第二环形密封组件围绕穿轴柔性电路板与第二转接电路板的连接处设置，用于密封穿轴柔性电路板的第二端和第二过孔之间的间隙。在穿轴柔性电路板的第二端周围形成完整密封路径，对穿轴柔性电路板的第二端和第二壳体的第二过孔之间的间隙实现有效密封。
结合第一方面的第十七种可能的实现方式，在第一方面的第十八种可能的实现方式中，第二环形密封组件的同一侧贴设于穿轴柔性电路板的第二端和第二壳体，该第二环形密封组件结构紧凑，而且容易装配，第二环形密封组件形成对穿轴柔性电路板第二端的完整密封路径，使第二壳体内部和外界之间隔离。
附图说明
图1为本申请实施例提供的可折叠电子设备的立体装配图；
图2为图1中沿A-A线的立体剖视图；
图3为图1的可折叠电子设备的立体分解图；
图4为图3的可折叠电子设备在第一壳体、第二壳体和穿轴柔性电路板安装于转轴机构后的装配示意图；
图5为图4的可折叠电子设备在装配第一环形密封组件和第二环形密封组件后的装配示意图；
图6为图3的可折叠电子设备的进一步立体分解图，第一壳体、第二壳体和转轴机构未示；
图7为本申请另一实施例提供的可折叠电子设备的局部剖视图；
图8为图1中沿A-A线的局部剖视图；
图9为图1中沿B-B线的剖视图。
具体实施方式
本申请以下各个实施例提供的可折叠电子设备可以是手机、掌上电脑、笔记本电脑或平板电脑等。
图1为本申请实施例提供的可折叠电子设备的立体装配图，图2为图1中沿A-A线的立体剖视图。参阅图1，本申请实施例提供的可折叠电子设备包括转轴机构10、第一壳体20、第二壳体30和柔性屏(图未示)。在图1中所展示的转轴机构10、第一壳体20、第二壳体30均做了简化处理。第一壳体20和第二壳体30分别转动连接于转轴机构10的两侧，以使第一壳体20和第二壳体30能够相对展开或相对折叠。第一壳体20和第二壳体30两者的转动轴线平行间隔设置。柔性屏设于第一壳体20和第二壳体30上。在可折叠电子设备处于展开状态时，第一壳体20、第二壳体30分列在 转轴机构10的两侧展开，此时柔性屏处于展开状态。在对可折叠电子设备进行折叠时，在外力的作用下，第一壳体20与第二壳体30相对转轴机构10转动，使得第一壳体20与第二壳体30之间的夹角小于180°且大于0°。在完全折叠后，第一壳体20与第二壳体30相对层叠，而柔性屏跟随第一壳体20及第二壳体30折弯。其中，柔性屏可采用内折叠或外折叠的方式，内折叠方式是指在折叠后柔性屏位于第一壳体20和第二壳体30之间，外折叠方式是指在折叠后柔性屏包覆于第一壳体20和第二壳体30以外。可折叠电子设备除了采用一个转轴机构10和两个壳体形成两层折叠结构，还可以采用多个转轴机构10和两个以上的壳体形成更多层的折叠结构。
在可折叠电子设备的壳体内会设置不同的器件，比如印制电路板、处理器、存储器、摄像头组件等等，这些器件可以分别安装在第一壳体20或第二壳体30。示例性的，将第一印制电路板、处理器和存储器等器件设置在第一壳体20，第二印制电路板和摄像头组件等器件设置在第二壳体30。为了实现不同壳体内的器件电性连接，可以在转轴机构10上设置穿轴柔性电路板40，将穿轴柔性电路板40横跨于转轴机构10，穿轴柔性电路板40的两端分别连接至不同壳体的器件，即可实现不同壳体内器件的电性连接。
结合图2，第一壳体20和第二壳体30之间的穿轴柔性电路板40需要设置一定的冗余长度，比如穿轴柔性电路板40的部分区域可设置为蜿蜒或弯折的形式，才能满足两个壳体相折叠或展开过程中穿轴柔性电路板40的变形需求。穿轴柔性电路板40的局部要安装在壳体或转轴机构10上，以免在两个壳体开合过程中穿轴柔性电路板40产生的变形过大。可运动的第一壳体20(或第二壳体30)和转轴机构10之间存在一定的间隙，外部的尘或水容易由壳体和转轴机构10之间的间隙进入，再由穿轴柔性电路板40和壳体过孔之间的间隙进入壳体内部，这样会造成壳体内器件的失效。
为了降低壳体在穿轴柔性电路板穿过的位置进尘进水，提出一种可折叠电子设备，该可折叠电子设备包括转轴机构、第一壳体、第二壳体和穿轴柔性电路板，第一壳体和第二壳体分别转动连接于转轴机构的两侧，穿轴柔性电路板的中部横跨于转轴机构。对于可折叠电子设备，X方向是指可折叠电子设备在展开后的左右方向，Y方向是指转轴机构的轴线方向，X方向和Y方向相互垂直。示例性的，第一壳体内设有印制电路板，穿轴柔性电路板一端和印制电路板之间电性连接。第一壳体在靠近转轴机构处具有过孔。穿轴柔性电路板的一端穿过第一壳体的过孔。在第一壳体靠近过孔处贴设沿Y方向延伸的背胶，用于固定穿轴柔性电路板，可在一定程度上起到防尘防水的效果。在第一壳体的过孔处设置沿Y方向延伸的固定钢片，固定钢片具有沿X方向分布的第一端部和第二端部，将第一端部固定在第一壳体上，在固定钢片的第二端部的底侧贴设沿Y方向延伸的泡棉并将泡棉压在穿轴柔性电路板上，使得背胶和泡棉位于穿轴柔性电路板的相对两侧，使印制电路板支撑在固定钢片的上侧。
上述可折叠电子设备通过在穿轴柔性电路板上设置背胶、固定钢片和泡棉，可实现穿轴柔性电路板在X方向的防尘防水作用，但是无法防止Y方向的进尘进水，原因是背胶和泡棉均沿Y方向延伸，在背胶和泡棉在Y方向上的两端和第一壳体过孔内壁之间存在间隙，实现不了完整的密封路径，大概只能达到IPX3等级的防水要求。IPX3防水等级可以防止喷洒的水浸入，防雨或防止与垂直的夹角小于60度的方向所喷洒的 水侵入电器而造成损坏。
图3为图1的可折叠电子设备的立体分解图；图4为图3的可折叠电子设备在第一壳体、第二壳体和穿轴柔性电路板安装于转轴机构后的装配示意图；图5为图4的可折叠电子设备在装配第一环形密封组件和第二环形密封组件后的装配示意图。图3至图5中所展示的转轴机构10、第一壳体20、第二壳体30均做了简化处理。
为了使壳体在穿轴柔性电路板穿过的位置有更好的防尘防水效果，本申请实施例提供一种可折叠电子设备，参阅图3至图5，该可折叠电子设备包括：转轴机构10、第一壳体20、第二壳体30、穿轴柔性电路板40、第一转接电路板50和第一环形密封组件60。第一壳体20和第二壳体30分别转动连接于转轴机构10的两侧，以使第一壳体20和第二壳体30能够相对展开或相对折叠。结合图2，第一壳体20具有第一过孔211。第一转接电路板50设于第一壳体20。穿轴柔性电路板40的中部40a横跨于转轴机构10，穿轴柔性电路板40的第一端40b穿设于第一过孔211并与第一转接电路板50电性连接，穿轴柔性电路板40的第二端40c延伸至第二壳体30。第一环形密封组件60围绕穿轴柔性电路板40与第一转接电路板50的连接处71a设置，用于密封穿轴柔性电路板40的第一端40b和第一过孔211之间的间隙。
其中，第一环形密封组件60中的环形是指闭环区域，比如圆环形、椭圆环形、方框形等等。第一环形密封组件60实现密封功能，其形状可依据孔的形状去设置。示例性的，第一壳体20的第一过孔211大致呈矩形，第一环形密封组件60可以设置为与第一过孔211适配的方框形，以实现有效密封。
本申请实施例提供的可折叠电子设备，采用穿轴柔性电路板40和第一转接电路板50结合去连接分别位于第一壳体20和第二壳体30内的器件，穿轴柔性电路板40横跨于转轴机构10，在第一壳体20设置第一转接电路板50，穿轴柔性电路板40的第一端40b穿过第一壳体20的第一过孔211后与第一转接电路板50电性连接。将第一环形密封组件60围绕穿轴柔性电路板40与第一转接电路板50的连接处71a设置，第一环形密封组件60形成对穿轴柔性电路板40第一端40b的完整密封路径，可对第一壳体20的第一过孔211处X方向和Y方向实现防尘防水，使第一壳体20内部和外界之间隔离，在有限空间的情况下，使穿轴柔性电路板40的第一端40b处达到IPX7及以上防尘防水能力。在第一壳体20和第二壳体30开合过程中，穿轴柔性电路板40能保持可靠固定在第一壳体20。
其中，IPX7防水等级可以防止浸水时水的浸入，在深达1米的水中防30分钟的浸泡影响。
示例性的，第一壳体20设有第一印制电路板(图未示)，第一印制电路板上设有处理器和存储器等器件，第二壳体30设有第二印制电路板(图未示)，第二印制电路板上设有摄像头组件等器件。采用穿轴柔性电路板40和第一转接电路板50结合去连接位于不同壳体的器件，穿轴柔性电路板40的第一端40b与第一转接电路板50的一端连接，第一转接电路板50的另一端与第一印制电路板连接，穿轴柔性电路板40的第二端40c与第二印制电路板连接，这样就能实现两个壳体内器件的电性连接。或者，第一转接电路板50就作为第一印制电路板；又或者，穿轴柔性电路板40的第一端40b部分线路直接连接至第一壳体20的器件。这些方式均能实现分别位于第一壳体20和 第二壳体30内器件的电性连接。
在设置转轴机构时，参阅图2、图3，转轴机构10包括主轴11、分别转动连接于主轴11两侧的第一挡板12和第二挡板13。主轴11包括相连接的主外轴111和主内轴112，穿轴柔性电路板40的中部40a穿设于主外轴111和主内轴112之间，或者穿轴柔性电路板40的中部40a跨设于主内轴112的表面。第一挡板12和第一壳体20之间形成第一容纳空间121，用于容纳位于主轴11其中一侧的穿轴柔性电路板40一部分。第二挡板13和第二壳体30之间形成第二容纳空间131，用于容纳位于主轴11另外一侧的穿轴柔性电路板40一部分。当柔性屏采用内折叠时，柔性屏的两端分别固定在第一壳体20和第二壳体30，柔性屏的中部与第一挡板12、主内轴112和第二挡板13对应设置。在第一壳体20和第二壳体30展开时，主内轴112、第一挡板12和第二挡板13共同对柔性屏的中部起到支撑作用。
在一些实施例中，参阅图3至图5，为了便于穿轴柔性电路板40、第一转接电路板50和第一环形密封组件60的装配，穿轴柔性电路板40的第一端40b通过第一连接器71和第一转接电路板50电连接，第一环形密封组件60环绕第一连接器71设置。通过在穿轴柔性电路板40和第一转接电路板50之间设置第一连接器71，使穿轴柔性电路板40和第一转接电路板50在厚度方向形成一定间距，以放置第一环形密封组件60，在第一壳体20的第一过孔211处形成对穿轴柔性电路板40第一端40b的完整密封防水路径，并实现穿轴柔性电路板40和第一转接电路板50的电连接。
其中，参阅图3，第一连接器71包括能相互插接的插座711和插头712，插座711和插头712连接后能实现两者固定和信号传输。示例性的，穿轴柔性电路板40的第一端40b设有插座711，第一转接电路板50设有插头712。在装配时，结合图4、图5，先将第一环形密封组件60贴设在穿轴柔性电路板40的第一端40b和第一壳体20表面，以密封第一壳体20的第一过孔211和穿轴柔性电路板40之间的间隙；再将第一转接电路板50的插头712插接在穿轴柔性电路板40的插座711上，实现穿轴柔性电路板40和第一转接电路板50之间电性连接。在其它实施例中，插座和插头的安装位置可互换，不影响穿轴柔性电路板和第一转接电路板的可拆卸连接。
图6为图3的可折叠电子设备的进一步立体分解图。在一些实施例中，参阅图2、图6，第一环形密封组件60的同一侧贴设于穿轴柔性电路板40的第一端40b和第一壳体20，该第一环形密封组件60结构紧凑，而且容易装配，第一环形密封组件60形成对穿轴柔性电路板40第一端40b的完整密封路径，使第一壳体20内部和外界之间隔离。
在设置第一环形密封组件60时，参阅图2、图6，第一环形密封组件60包括环形密封胶61和环形刚性板62，环形刚性板62通过环形密封胶61贴设于穿轴柔性电路板40的第一端40b和第一壳体20。环形密封胶61和环形刚性板62中的环形可参考第一环形密封组件60中的环形去理解。采用环形密封胶61将环形刚性板62固定在穿轴柔性电路板40的第一端40b和第一壳体20上。虽然外部的尘或水可以从第一壳体20和转轴机构10的间隙进入，但是环形密封胶61和环形刚性板62形成对穿轴柔性电路板40的第一端40b的完整密封路径，外部的尘或水不能继续通过第一壳体20的第一过孔211进入到第一壳体20内部，从而使第一壳体20内的器件得到有效保护。
在第一壳体20和第二壳体30相折叠或展开的过程中，柔性的穿轴柔性电路板40会变形以对第一环形密封组件60形成推顶作用，有可能将环形密封胶61推离第一壳体20，这样会造成防尘防水的失效。采用具有一定的刚性的环形刚性板62，可以在一定程度上降低因为穿轴柔性电路板40变形过大而对第一环形密封组件60的推顶作用，提升第一环形密封组件60的密封效果。环形刚性板62可以是钢片或其它具有一定刚性的材料制作。
在设置环形密封胶时可采用不同的实现方式。第一种环形密封胶的实现方式是：参阅图2，环形密封胶61为一体层状结构，比如采用背胶，这种装配方式操作方便。示例性的，在装配时，先将背胶固定在环形刚性板62上，再将环形刚性板62设有背胶的一侧贴设在穿轴柔性电路板40第一端40b和第一壳体20上，使得在第一壳体20的第一过孔211和穿轴柔性电路板40之间的间隙得到密封。
第二种环形密封胶的实现方式是：环形密封胶包括第一环形胶和第二环形胶，第二环形胶位于第一环形胶的径向外部，穿轴柔性电路板的第一端和环形刚性板的内环区域通过第一环形胶粘接，第一壳体和环形刚性板的外环区域通过第二环形胶粘接。第一环形胶和第二环形胶可采用相同或不同的胶体，这种方式可降低胶体用料，尺寸公差容易控制。示例性的，在采用不同的胶体时，第一环形胶为点胶，第二环形胶为背胶，在环形刚性板的内环区域和外环区域分别设置点胶和背胶，再将环形刚性板通过不同胶体贴设于穿轴柔性电路板的第一端和第一壳体的表面。此外，第一环形胶和第二环形胶还可以均采用背胶，两个环形胶之间可间隔一定距离，降低胶体用料。
在连接穿轴柔性电路板和第一转接电路板时，依据穿轴柔性电路板的端部朝向可采用不同的实现方式。第一种连接穿轴柔性电路板和第一转接电路板的实现方式是：参阅图7，穿轴柔性电路板40的第一端40b设置为平面延伸部41，平面延伸部41和第一转接电路板50电性连接。穿轴柔性电路板40的第一端40b穿入第一壳体20的第一过孔211后以平面延伸部41的方式与第一转接电路板50连接，这样能实现穿轴柔性电路板40和第一转接电路板50的电性连接。
第二种连接穿轴柔性电路板和第一转接电路板的实现方式是：参阅图2、图8、图9，穿轴柔性电路板40的第一端40b设置为弯折部42，弯折部42和第一转接电路板50电性连接。穿轴柔性电路板40的第一端40b穿入第一壳体20的第一过孔211后朝向转轴机构10弯折，当第一过孔211设置在第一壳体20靠近转轴机构10的位置时，穿轴柔性电路板40的第一端40b和第一转接电路板50的位置更靠近转轴机构10设置，这样第一壳体20在X方向可形成更大空间22，以在第一壳体20上容置更多的器件。这种方式能实现穿轴柔性电路板40和第一转接电路板50的电性连接。
示例性的，弯折部42可朝向转轴机构10(即X方向)弯折延伸，选用呈带状的穿轴柔性电路板40，并在穿轴柔性电路板40的一端弯折180°形成弯折部42，该具有弯折部42的穿轴柔性电路板40容易成型。此外，弯折部还可以朝向Y方向或其它方向弯折延伸，要采用具有L型或其它特定形状的穿轴柔性电路板并通过弯折形成弯折部。
在一些实施例中，参阅图2、图8，为了将弯折部42可靠地支撑在第一壳体20上，将弯折部42的末端42a支撑在第一壳体20上，弯折部42的另一端通过支撑组件 43支撑在第一壳体20上。弯折部42的末端42a就是弯折部42在延伸方向的末端。在图2所示的实施例中，弯折部42的末端42a是靠近转轴机构10的部分。在弯折部42的末端42a支撑在第一壳体20上后，弯折部42的另一端借助支撑组件43支撑在第一壳体20上，这样在一个平面上对弯折部42提供两个支撑位置，实现弯折部42的可靠支撑，降低在第一壳体20和第二壳体30相折叠或展开时穿轴柔性电路板40变形过大而脱离第一环形密封组件60的情况。
在设置弯折部时，参阅图8，弯折部42包括依次连接的第一平面部421、过渡连接部422和第二平面部423，第一平面部421和第二平面部423相间隔设置，第一平面部421伸入第一过孔211设置，第二平面部423远离过渡连接部422的一端作为弯折部42的末端42a并支撑在第一壳体20上，第二平面部423和第一转接电路板50电性连接。在X方向上第二平面部423的长度大于第一平面部421的长度。第一平面部421和第二平面部423可相互平行，穿轴柔性电路板40的第一端40b部分区域和第一转接电路板50也相互平行设置。将第二平面部423和第一壳体20所在平面平行设置，便于在有限空间布置第一转接电路板50、第一连接器71和第一环形密封组件60。
在连接弯折部和支撑组件时有不同的实现方式。第一种连接弯折部和支撑组件的实现方式是：参阅图6、图8，支撑组件43包括第一垫片431和第二垫片432，第一垫片431和第二垫片432分别位于第一平面部421的两侧，第一垫片431的两侧分别连接于第二平面部423和第一平面部421，第二垫片432的两侧分别连接于第一平面部421和第一壳体20。第一平面部421通过第二垫片432支撑在第一壳体20上，第二平面部423通过第一垫片431支撑在第一平面部421上，这样能对弯折部42远离其末端42a的部分进行支撑。其中，垫片的两侧可通过粘接的方式连接至相邻结构上，比如第一垫片431的两侧分别通过背胶和第一平面部421、第二平面部423连接，第二垫片432的两侧分别通过背胶连接至第一壳体20和第一平面部421上。
示例性的，第一平面部421和第二平面部423相互平行设置，结合图3，第一壳体20的第一过孔211呈长条形，结合图6，第一垫片431和第二垫片432设置为长条形。第一垫片431和第二垫片432沿穿轴柔性电路板40的宽度方向分别设在第一平面部421的两侧，采用较少的垫片就能对弯折部42的一端进行支撑。此外，第一垫片431和第二垫片432还可以设置为其它形状。
垫片的材质可按需设置。示例性的，第一垫片431为泡棉，第二垫片432为刚性片，采用具有刚性的第二垫片432可将第一平面部421支撑起一定高度，具有弹性的第一垫片431可支撑起第二平面部423的一端，使得第二平面部423以平行于第一壳体20的方式支撑在第一壳体20上。将具有弹性的第一垫片431连接在第一平面部421和第二平面部423之间，形成对穿轴柔性电路板40的保护，降低刚性垫片带来的磨损。
第二种连接弯折部和支撑组件的实现方式是：支撑组件包括第一垫片，第一垫片的两侧分别连接于第二平面部和第一平面部，第一平面部背对第一垫片的一侧连接于第一壳体上。这样能实现对弯折部远离转轴机构的部分进行支撑，并形成对穿轴柔性电路板的保护。第一平面部和第一壳体之间可采用背胶连接。
在设置穿轴柔性电路板时有不同的实现方式。第一种穿轴柔性电路板的实现方式是：参阅图6、图8，穿轴柔性电路板40为完全柔性电路板，穿轴柔性电路板40的第 一端40b背向第一环形密封组件60的一侧设有第一刚性片44。通过第一刚性片44来增加穿轴柔性电路板40第一端40b的结构强度，便于穿轴柔性电路板40的第一端40b与第一转接电路板50的连接配合，也便于穿轴柔性电路板40的第一端40b和环形刚性板62的内环区域之间通过环形密封胶61可靠粘接，提升对穿轴柔性电路板40在第一壳体20的第一过孔211处的有效密封，降低在第一壳体20和第二壳体30折叠或展开运动过程中穿轴柔性电路板40变形过大而使穿轴柔性电路板40第一端40b分离环形刚性板62的情况。第一刚性片44可采用背胶或其它方式安装在穿轴柔性电路板40的第一端40b上。
示例性的，参阅图8，在穿轴柔性电路板40的第一端40b为弯折部42时，弯折部42包括依次连接的第一平面部421、过渡连接部422和第二平面部423，通过对穿轴柔性电路板40弯折180°即可形成具有第一平面部421、过渡连接部422和第二平面部423的弯折部42，第一刚性片44设置在第二平面部423面向第一平面部421的一侧。在设置支撑组件43时，支撑组件43中的第一垫片431夹设在第一刚性片44和第一平面部421之间，从而将穿轴柔性电路板40的第一端40b支撑在第一壳体20上。
示例性的，参阅图7，在穿轴柔性电路板40的第一端40b为平面延伸部41时，将第一刚性片44设置在穿轴柔性电路板40的第一端40b背对第一转接电路板50的一侧，并将穿轴柔性电路板40的第一端40b插入第一壳体20的第一过孔211即可。第一刚性片44的两侧可通过背胶分别固定在第一壳体20和第一转接电路板50上。
第二种穿轴柔性电路板的实现方式是：穿轴柔性电路板为刚柔电路板，穿轴柔性电路板包括相连接的第一柔性电路板和第一刚性电路板，第一柔性电路板横跨于转轴机构，第一刚性电路板作为穿轴柔性电路板的第一端并与第一转接电路板电性连接。刚柔电路板的第一刚性电路板即满足结构强度需求，无需设置刚性片以提高结构强度，可简化装配操作，提高生产效率。在设置第一连接器时，第一连接器设于第一刚性电路板上，用于与第一转接电路板电连接。
示例性的，在穿轴柔性电路板的第一端为弯折部时，弯折部包括依次连接的第一平面部、过渡连接部和第二平面部，第一平面部和过渡连接部设为第一柔性电路板的一部分，第二平面部设为第一刚性电路板，将第一刚性电路板弯折至预定位置跟第一转接电路板电性连接。在设置支撑组件时，支撑组件中的第一垫片夹设在第一刚性电路板和第一平面部之间，将穿轴柔性电路板的第一端支撑在第一壳体上。
示例性的，在穿轴柔性电路板的第一端为平面延伸部时，直接将刚性的第一刚性电路板插入第一壳体的第一过孔，再跟第一转接电路板电性连接。第一刚性电路板支撑在第一壳体上。
在设置第一转接电路板时有不同的实现方式。第一种第一转接电路板的实现方式是：参阅图6、图8，第一转接电路板50为完全柔性电路板，第一转接电路板50背向第一环形密封组件60的一侧设有第二刚性片51。通过第二刚性片51来增加第一转接电路板50局部的结构强度，便于穿轴柔性电路板40的第一端40b与第一转接电路板50的连接配合。
第二种第一转接电路板的实现方式是：第一转接电路板为刚柔电路板，第一转接 电路板包括相连接的第二柔性电路板和第二刚性电路板，第二刚性电路板与穿轴柔性电路板的第一端电性连接。第一转接电路板的第二刚性电路板即满足结构强度需求，无需设置刚性片以提高结构强度，可简化装配操作，提高生产效率。
在一些实施例中，为了便于第一转接电路板50和预定器件的连接，参阅图1、图3，第一转接电路板50设有第二连接器72，用于和第一壳体20内的预定器件连接。其中，第二连接器72的结构和连接关系可参考第一连接器71的情况。预定器件可以是印制电路板或其它器件。示例性的，第一壳体20内设置有第一印制电路板(图未示)，第一转接电路板50和第一印制电路板通过第二连接器72连接。第一连接器71设于第一转接电路板50的第一端50a，而第二连接器72设于第一转接电路板50的第二端50b。第一转接电路板50的第一端50a和第二端50b朝向可依据需求设置，比如，在图3所示的实施例中，第一转接电路板50的第一端50a和第二端50b在同一平面上且两者的朝向相互垂直；又比如，在图7所示的实施例中，第一转接电路板50弯折180°设置以使第一端50a和第二端50b的朝向相同。
在一些实施例中，为了实现第二壳体过孔处的有效密封，参阅图2，可折叠电子设备还包括第二转接电路板80和第二环形密封组件90。第二壳体30具有第二过孔311，第二转接电路板80设于第二壳体30，穿轴柔性电路板40的第二端40c穿设于第二过孔311并与第二转接电路板80电性连接。第二环形密封组件90围绕穿轴柔性电路板40与第二转接电路板80的连接处73a设置，用于密封穿轴柔性电路板40的第二端40c和第二过孔311之间的间隙。在穿轴柔性电路板40的第二端40c周围形成完整密封路径，对穿轴柔性电路板40的第二端40c和第二壳体30的第二过孔311之间的间隙实现有效密封。
穿轴柔性电路板40的第二端40c、第二壳体30、第二转接电路板80和第二环形密封组件90的装配关系可参考穿轴柔性电路板40的第二端40b相关结构的连接情况。穿轴柔性电路板40与第二转接电路板80之间可通过第三连接器73实现电连接。此外，穿轴柔性电路板40的第二端40c可参考第一端40b采用平面延伸部或弯折部的形式。
在设置第二环形密封组件90时，第二环形密封组件90的同一侧贴设于穿轴柔性电路板40的第二端40c和第二壳体30，该第二环形密封组件90结构紧凑，而且容易装配，第二环形密封组件90形成对穿轴柔性电路板40第二端40c的完整密封路径，使第二壳体30内部和外界之间隔离。
在设置第一壳体时，参阅图2、图3，第一壳体20包括第一中框21，第一过孔211设于第一中框21，第一转接电路板50设于第一中框21。第一中框21内会布置较多的元器件，第一中框21的后侧21a用于设置背壳(图未示)，第一中框21的前侧21b用于设置柔性屏。第一中框21具有与第一过孔211连通的第一容纳槽212，第一环形密封组件60容置于第一容纳槽212内。第一转接电路板50和穿轴柔性电路板40之间通过第一连接器71连接，将第一连接器71和第一环形密封组件60布置在第一中框21的第一容纳槽212内，这样可降低第一壳体20的厚度尺寸，使结构占用空间较小。
在设置第二壳体时，参阅图2、图3，第二壳体30包括第二中框31，第二过孔311设于第二中框31，第二转接电路板80设于第二中框31。第二中框31具有与第二过孔311连通的第二容纳槽312，第二环形密封组件90容置于第二容纳槽312内，这样可 降低第二壳体30的厚度尺寸。
最后应说明的是：以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，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 (14)

  1. 一种可折叠电子设备，其特征在于，包括：转轴机构、第一壳体、第二壳体、穿轴柔性电路板、第一转接电路板和第一环形密封组件；
    所述第一壳体和所述第二壳体分别转动连接于所述转轴机构的两侧，以使所述第一壳体和所述第二壳体能够相对展开或相对折叠；所述第一壳体具有第一过孔；
    所述第一转接电路板设于所述第一壳体；
    所述穿轴柔性电路板的中部横跨于所述转轴机构，所述穿轴柔性电路板的第一端穿设于所述第一过孔并与所述第一转接电路板电性连接，所述穿轴柔性电路板的第二端延伸至所述第二壳体；
    所述第一环形密封组件围绕所述穿轴柔性电路板与所述第一转接电路板的连接处设置，用于密封所述穿轴柔性电路板的第一端和所述第一过孔之间的间隙。
  2. 根据权利要求1所述的可折叠电子设备，其特征在于，所述穿轴柔性电路板的第一端通过第一连接器和所述第一转接电路板电连接，所述第一环形密封组件环绕所述第一连接器设置。
  3. 根据权利要求1或2所述的可折叠电子设备，其特征在于，所述第一环形密封组件的同一侧贴设于所述穿轴柔性电路板的第一端和所述第一壳体。
  4. 根据权利要求3所述的可折叠电子设备，其特征在于，所述第一环形密封组件包括环形密封胶和环形刚性板，所述环形刚性板通过所述环形密封胶贴设于所述穿轴柔性电路板的第一端和所述第一壳体。
  5. 根据权利要求4所述的可折叠电子设备，其特征在于，所述环形密封胶为一体层状结构；
    或，所述环形密封胶包括第一环形胶和第二环形胶，所述第二环形胶位于所述第一环形胶的径向外部，所述穿轴柔性电路板的第一端和所述环形刚性板的内环区域通过所述第一环形胶粘接，所述第一壳体和所述环形刚性板的外环区域通过所述第二环形胶粘接。
  6. 根据权利要求1至5任一项所述的可折叠电子设备，其特征在于，所述穿轴柔性电路板的第一端设置为弯折部，所述弯折部和所述第一转接电路板电性连接；
    或，所述穿轴柔性电路板的第一端设置为平面延伸部，所述平面延伸部和所述第一转接电路板电性连接。
  7. 根据权利要求6所述的可折叠电子设备，其特征在于，当所述穿轴柔性电路板的第一端为所述弯折部时，所述弯折部的末端支撑在所述第一壳体上，所述弯折部的另一端通过支撑组件支撑在所述第一壳体上。
  8. 根据权利要求7所述的可折叠电子设备，其特征在于，所述弯折部包括依次连接的第一平面部、过渡连接部和第二平面部，所述第一平面部和所述第二平面部相间隔设置，所述第一平面部伸入所述第一过孔设置，所述第二平面部远离所述过渡连接部的一端作为所述弯折部的末端并支撑在所述第一壳体上，所述第二平面部和所述第一转接电路板电性连接；
    所述支撑组件包括第一垫片和第二垫片，所述第一垫片和所述第二垫片分别位于 所述第一平面部的两侧，所述第一垫片的两侧分别连接于所述第二平面部和所述第一平面部，所述第二垫片的两侧分别连接于所述第一平面部和所述第一壳体；
    或，所述支撑组件包括第一垫片，所述第一垫片的两侧分别连接于所述第二平面部和所述第一平面部，所述第一平面部背对所述第一垫片的一侧连接于所述第一壳体上。
  9. 根据权利要求1至8任一项所述的可折叠电子设备，其特征在于，所述穿轴柔性电路板为完全柔性电路板，所述穿轴柔性电路板的第一端背向所述第一环形密封组件的一侧设有第一刚性片；
    或，所述穿轴柔性电路板为刚柔电路板，所述穿轴柔性电路板包括相连接的第一柔性电路板和第一刚性电路板，所述第一柔性电路板横跨于所述转轴机构，所述第一刚性电路板作为所述穿轴柔性电路板的第一端并与所述第一转接电路板电性连接。
  10. 根据权利要求1至9任一项所述的可折叠电子设备，其特征在于，所述第一转接电路板为完全柔性电路板，所述第一转接电路板背向所述第一环形密封组件的一侧设有第二刚性片；
    或，所述第一转接电路板为刚柔电路板，所述第一转接电路板包括相连接的第二柔性电路板和第二刚性电路板，所述第二刚性电路板与所述穿轴柔性电路板的第一端电性连接。
  11. 根据权利要求1至10任一项所述的可折叠电子设备，其特征在于，所述第一转接电路板设有第二连接器，用于和所述第一壳体内的预定器件连接。
  12. 根据权利要求1至11任一项所述的可折叠电子设备，其特征在于，所述第一壳体包括第一中框，所述第一过孔设于所述第一中框，所述第一转接电路板设于所述第一中框；所述第一中框具有与所述第一过孔连通的第一容纳槽，所述第一环形密封组件容置于所述第一容纳槽内。
  13. 根据权利要求1至12任一项所述的可折叠电子设备，其特征在于，所述可折叠电子设备还包括第二转接电路板和第二环形密封组件；
    所述第二壳体具有第二过孔，所述第二转接电路板设于所述第二壳体，所述穿轴柔性电路板的第二端穿设于所述第二过孔并与所述第二转接电路板电性连接；
    所述第二环形密封组件围绕所述穿轴柔性电路板与所述第二转接电路板的连接处设置，用于密封所述穿轴柔性电路板的第二端和所述第二过孔之间的间隙。
  14. 根据权利要求13所述的可折叠电子设备，其特征在于，所述第二环形密封组件的同一侧贴设于所述穿轴柔性电路板的第二端和所述第二壳体。
PCT/CN2022/085483 2021-06-08 2022-04-07 一种可折叠电子设备 WO2022257582A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110640575.X 2021-06-08
CN202110640575.XA CN115460842A (zh) 2021-06-08 2021-06-08 一种可折叠电子设备

Publications (1)

Publication Number Publication Date
WO2022257582A1 true WO2022257582A1 (zh) 2022-12-15

Family

ID=84295010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/085483 WO2022257582A1 (zh) 2021-06-08 2022-04-07 一种可折叠电子设备

Country Status (2)

Country Link
CN (1) CN115460842A (zh)
WO (1) WO2022257582A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002124779A (ja) * 2000-10-13 2002-04-26 Sanyo Electric Co Ltd 携帯型電子機器
US20150173245A1 (en) * 2013-12-18 2015-06-18 Samsung Electronics Co., Ltd. Electronic device having a circuit board in contact with a case
US20170290184A1 (en) * 2016-04-01 2017-10-05 Samsung Electronics Co., Ltd. Printed circuit board and electronic device including the same
CN207116746U (zh) * 2017-06-16 2018-03-16 凡甲电子(苏州)有限公司 柔性电路板连接器
CN110582804A (zh) * 2017-05-02 2019-12-17 三星电子株式会社 包括柔性显示器的电子装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002124779A (ja) * 2000-10-13 2002-04-26 Sanyo Electric Co Ltd 携帯型電子機器
US20150173245A1 (en) * 2013-12-18 2015-06-18 Samsung Electronics Co., Ltd. Electronic device having a circuit board in contact with a case
US20170290184A1 (en) * 2016-04-01 2017-10-05 Samsung Electronics Co., Ltd. Printed circuit board and electronic device including the same
CN110582804A (zh) * 2017-05-02 2019-12-17 三星电子株式会社 包括柔性显示器的电子装置
CN207116746U (zh) * 2017-06-16 2018-03-16 凡甲电子(苏州)有限公司 柔性电路板连接器

Also Published As

Publication number Publication date
CN115460842A (zh) 2022-12-09

Similar Documents

Publication Publication Date Title
JP4557181B2 (ja) 電子制御装置
JP6434656B2 (ja) 電子装置
US10045447B1 (en) Circuit board architecture for an electronic device
WO2023015957A1 (zh) 一种支撑装置和可折叠的电子设备
CN107613069A (zh) 壳体组件、侧键模组及移动终端
WO2019052332A1 (zh) 显示屏组件及移动终端
WO2021185237A1 (zh) 电路板组件和电子设备
WO2017201755A1 (zh) 指纹模组及电子设备
JP5654379B2 (ja) 電気配線を備えた電子機器
WO2022257582A1 (zh) 一种可折叠电子设备
WO2019062753A1 (zh) 显示装置、其制造方法及其接地装置
JP5506467B2 (ja) 電子機器
CN102510697B (zh) 一种电子产品外接线防水结构及其装配方法
EP3285117B1 (en) Circuit board assembly and terminal
CN217217080U (zh) 电子组件及电子设备
CN215813896U (zh) 一种交互平板
CN116456591A (zh) 电子设备
JP4985552B2 (ja) 防水窓構造、及び電子機器
JP2013115615A (ja) 電子機器
CN103338283B (zh) 一种手机摄像头芯片装配结构
CN219980857U (zh) 可折叠设备
JP7307838B1 (ja) 電子機器
CN209859121U (zh) 显示装置
CN217486622U (zh) 电子设备及电子系统
CN102004374A (zh) 电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22819187

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22819187

Country of ref document: EP

Kind code of ref document: A1