Folding equipment

Abstract

The embodiment of the utility model provides folding equipment, and relates to the field of electronic equipment. The size of the electronic equipment is reduced. According to the specific scheme, the folding equipment comprises a first rotating shaft and a first flexible interconnection assembly, and when the folding equipment is in a flattened state, the vertical projection of a second section of the first flexible interconnection assembly on the folding equipment is located in the first rotating shaft; and the vertical projection is not vertical to the axis of the first rotating shaft. Therefore, the bending radius of the second section can be reduced when the second section is bent, and the space needed in the bending process of the second section is reduced. The space of the first rotating shaft for accommodating the second section is reduced, and the size of the folding equipment is reduced. In the folding process of the folding equipment, the movement allowance of the second section is small, friction to the second section in the folding process is small, and the service life of the folding equipment can be prolonged.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electronic devices, and in particular, to a foldable device. Background Art

[0002] Folding devices (such as folding mobile phones) are gradually becoming a development trend of future mobile electronic products. When the folding device is in the unfolded state, it can obtain a larger display area to improve the viewing effect. When the terminal device is in the folded state, it can obtain a smaller volume, which is convenient for users to carry. The folding device mainly includes a first body, a rotating shaft, and a second body arranged in sequence. The devices on the first body and the devices on the second body are interconnected through a flexible interconnection component. Reducing the space occupied by the flexible interconnection component is one of the means to reduce the volume of the folding device. Utility Model Content

[0003] The embodiments of the present application provide a method for reducing the volume of a foldable device.

[0004] In order to achieve the above-mentioned purpose, this application adopts the following technical solution.

[0005] In the first aspect, an embodiment of the present application provides a folding device. The folding device includes a first body, a first rotating shaft, a second body and a first flexible interconnection component. When the folding device is in a flattened state, the first body, the first rotating shaft and the second body are arranged in sequence. The first flexible interconnection component includes a first section, a second section and a third section connected in sequence, the first section is connected to the first body; the third section is connected to the second body. When the folding device is in a flattened state, the vertical projection of the second section on the folding device is located within the first rotating shaft; the vertical projection of the second section on the folding device is not perpendicular to the axis of the first rotating shaft. Therefore, compared with the vertical projection of the second section on the folding device being perpendicular to the axis of the first rotating shaft, the vertical projection of the second section on the folding device is not perpendicular to the axis of the first rotating shaft, which can reduce the bending radius of the second section when bending and reduce the space required for the second section during the bending process. The space of the first rotating shaft for accommodating the second section is reduced, thereby reducing the volume of the first rotating shaft and the volume of the folding device, which is conducive to improving the integration of the folding device. In addition, the bending radius of the second section is reduced. During the folding process of the folding device, the bending arc of the second section is smaller, the movement margin of the second section is smaller, and the friction of the second section during the folding process is smaller, which is beneficial to improve the life of the folding device.

[0006] In combination with the first aspect, in some achievable manners, the included angle between the vertical projection of the second section on the folding device and the axis of the first rotating shaft is 10° to 80°. Thus, during the folding process of the folding device, the bending arc of the second section is small, and the space required for the movement of the second section is small, which can reduce the space occupied by the first flexible interconnection component and save space in the folding device.

[0007] In combination with the first aspect, in some achievable ways, the folding device further includes: a first adhesive layer and a second adhesive layer. The first body is connected to the first section via the first adhesive layer; the second body is connected to the third section via the second adhesive layer. When the folding device is in a flattened state, a line between the first adhesive layer and the second adhesive layer is not perpendicular to the axis of the first rotating shaft. Thus, the first adhesive layer and the second adhesive layer jointly constrain an extension direction of the second section, so that the extension direction of the second section is not perpendicular to the axis of the first rotating shaft. Thus, the space occupied by the second section is reduced.

[0008] In combination with the first aspect, in some achievable methods, the folding device further includes: a first limiter and a second limiter. The first limiter is connected to the first body and is arranged with the first body to form a first channel, and the first section is arranged in the first channel; the second limiter is connected to the second body and is arranged with the second body to form a second channel, and the third section is arranged in the second channel. When the folding device is in a flattened state, the line between the first limiter and the second limiter is not perpendicular to the axis of the first rotating shaft. Thus, the first channel constrains the first section, and the second channel constrains the third section, thereby constraining the extension path of the second section located between the first section and the third section. The first limiter and the second limiter jointly limit the extension direction of the second section, so that the extension direction of the second section is not perpendicular to the axis of the first rotating shaft. Thereby, the bending radius of the second section when bending is reduced, saving space for the folding device.

[0009] In combination with the first aspect, in some achievable ways, the first position-limiting member includes a first abutting portion, a pressure plate, and a second abutting portion connected in sequence. The first abutting portion and the second abutting portion are both connected to the first body, and the first abutting portion and the second abutting portion abut against two sides of the first section respectively; the pressure plate, the first section, and the first body are stacked. Thus, the first abutting portion and the second abutting portion jointly constrain the first section, limiting the space in which the first section can move, and the pressure plate and the first body jointly constrain the movement space of the first section. Constrain the movable path of the first section.

[0010] In combination with the first aspect, in some achievable manners, the surface of the pressing plate facing the first section abuts against the first section. Thus, the pressing plate and the first body can constrain the first section and limit the relative movement of the first section between the pressing plate and the first body.

[0011] In combination with the first aspect, in some achievable manners, the first channel and the first section are in interference fit. Thus, the first section cannot move relative to the first limiter. The first limiter prevents the first section from moving relative to the first body, thereby preventing the first section from rubbing against the first body and affecting the life of the components on the first body.

[0012] In conjunction with the first aspect, in some achievable manners, the first body includes a middle frame, the middle frame is rotatably connected to the first rotating shaft, and the middle frame and the first position-limiting member are connected to form an integrally formed member. Thus, the first position-limiting member is integrated on the first middle plate, which can reduce the space occupied by the first body.

[0013] In combination with the first aspect, in some achievable ways, the folding device further comprises: a third body, a second flexible interconnection component and a second rotating shaft. The second body and the third body are both rotatably connected to the second rotating shaft, one end of the second flexible interconnection component is connected to the second body, and the other end is connected to the third body. When the folding device is in a flattened state, the first body, the first rotating shaft, the second body, the second rotating shaft and the third body are arranged in sequence. Because the first flexible interconnection component occupies a small space, the volume of the first rotating shaft can be reduced. The volume of the folding device with a three-fold structure including the first flexible interconnection component is also reduced accordingly.

[0014] In conjunction with the first aspect, in some achievable manners, the first flexible interconnect assembly includes a first board and a first signal line embedded in the first board; the first signal line includes an electrical transmission medium, so that electrical signals can be transmitted in the first flexible interconnect assembly.

[0015] In conjunction with the first aspect, in some achievable manners, the first flexible interconnect assembly includes a second board and a second signal line embedded in the second board; the second signal line includes an optical transmission medium, so that optical signals can be transmitted in the first flexible interconnect assembly.

[0016] In combination with the first aspect, in some achievable ways, the first flexible interconnection assembly further includes a first optical transceiver and a second optical transceiver. The first optical transceiver is connected to the first body, and the second optical transceiver is connected to the second body; one end of the second signal line is connected to the first optical transceiver, and the other end is connected to the second optical transceiver. Wherein, when the folding device is in a flattened state, the distance between one end of the second signal line and the first optical transceiver is a first distance; when the folding device is in a folded state, the distance between one end of the second signal line and the first optical transceiver is a second distance; the second distance is greater than the first distance. Thus, during the adjustment of the folding device from the unfolded state to the folded state, the distance between one end of the second signal line and the first optical transceiver is variable. The second signal line is provided with a margin for extension or contraction. The stress in the second signal line is released, and the service life of the second signal line is increased. In addition, the aforementioned margin for extension or contraction can reduce the friction between the second signal line and the device on the first body, and reduce the influence of the second signal line on the device on the first body.

[0017] In combination with the first aspect, in some achievable embodiments, the flexible interconnect assembly further includes: a connecting element, through which the first optical transceiver is connected to the first body. Wherein, when the folding device is in a flattened state, the distance between one end of the connecting element and the first optical transceiver is a third distance; when the folding device is in a folded state, the distance between one end of the connecting element and the first optical transceiver is a fourth distance; the fourth distance is greater than the third distance. Thus, the distance between one end of the connecting element and the first optical transceiver is adjustable, so that the distance between the connecting element and the second signal line is adjustable. During the folding process of the folding device, the distance between the second signal line and the first optical transceiver increases, so that the second signal line has a margin for extension or contraction. The stress in the second signal line is released, and the service life of the second signal line is increased.

[0018] In combination with the first aspect, in some achievable embodiments, the first flexible interconnect assembly further includes a coupling element, and one end of the second signal line is coupled to the first optical transceiver through the coupling element.

[0019] In combination with the first aspect, in some achievable manners, the folding device further includes: a display screen, and the first body and the second body are both connected to a backlight side of the display screen.

[0020] In the second aspect, the embodiment of the present application provides a folding device. The folding device includes a first body, a second body and a flexible interconnection component. The first body is slidably connected to the second body; when the folding device is in an unfolded state, the first body and the second body are arranged side by side along a first direction; when the folding device is in a folded state, the first body and the second body are stacked along the thickness direction of the folding device, and the second body covers the first sub-region of the first body. The flexible interconnection component includes a first sub-section, a second sub-section and a third sub-section connected in sequence, the first sub-section is connected to the first body; the third sub-section is connected to the second body; when the folding device is in an unfolded state, the vertical projection of the second sub-section on the folding device is located in the first sub-region, and the vertical projection of the second sub-section on the folding device is not parallel to the first direction. As a result, the bending radius of the second sub-section when bending can be reduced, and the space required during the bending process of the second sub-section can be reduced. Reducing the space used by the folding device to accommodate the second sub-section is conducive to improving the integration of the folding device. In addition, the bending radius of the second sub-part is reduced. During the folding process of the folding device, the bending arc of the second sub-part is smaller, the movement margin of the second sub-part is smaller, and the friction of the second sub-part during the folding process is smaller, which is beneficial to improve the life of the folding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1a It is a schematic diagram of the structure of the folding device when it is flattened.

[0022] Figure 1b It is a structural schematic diagram of the folding device in the folded state.

[0023] Figure 2 Schematic diagram of the exploded structure of the folding device.

[0024] Figure 3a This is a schematic structural diagram of the first flexible interconnection component when the folding device provided in an embodiment of the present application is in a folded state.

[0025] Figure 3b This is a schematic structural diagram of the first flexible interconnection component when the folding device provided in an embodiment of the present application is in an unfolded state.

[0026] Figure 4 This is a schematic diagram of the vertical projection of the second section and the bending state of the second section.

[0027] Figure 5a A schematic structural diagram of a first position-limiting member and a first main body provided in an embodiment of the present application.

[0028] Figure 5b A schematic structural diagram of another first position limiting member and a first main body provided in an embodiment of the present application.

[0029] Figure 5c A schematic structural diagram of another first position-limiting member and a first main body provided in an embodiment of the present application.

[0030] Figure 6a A schematic structural diagram of a first limit member and a second limit member provided in an embodiment of the present application.

[0031] Figure 6b A schematic structural diagram of the third limiting member and the first flexible interconnection assembly provided in an embodiment of the present application.

[0032] Figure 6c A schematic diagram of another first flexible interconnection assembly connection structure provided in an embodiment of the present application.

[0033] Figure 7 A schematic structural diagram of yet another first flexible interconnection component provided in an embodiment of the present application.

[0034] Figure 8a Another distribution relationship diagram of the first flexible interconnection component provided in an embodiment of the present application.

[0035] Figure 8b Another distribution relationship diagram of the first flexible interconnection component provided in an embodiment of the present application.

[0036] Figure 8c A further distribution relationship diagram of the first flexible interconnection component provided in an embodiment of the present application.

[0037] Fig. 9 It is a schematic structural diagram of a folding device including two first flexible interconnection components.

[0038] Fig.10 A schematic diagram of the internal structure of a first flexible interconnection component provided in an embodiment of the present application.

[0039] Fig.11a A schematic diagram of the connection structure of a first flexible interconnection component provided in an embodiment of the present application.

[0040] Fig.11b It is a structural schematic diagram of connecting one end of the second signal line to the first optical transceiver.

[0041] Fig.11c Schematic diagram of the coupling element.

[0042] Fig.11d A schematic diagram of a connection structure of another first flexible interconnection component provided in an embodiment of the present application.

[0043] Fig.11e A schematic diagram of the connection structure of another first flexible interconnection component provided in an embodiment of the present application.

[0044] Fig.11f A schematic diagram of the connection structure of another first flexible interconnection component provided in an embodiment of the present application.

[0045] Fig.12a A schematic diagram of the structure of another folding device in a flattened state provided in an embodiment of the present application.

[0046] Figure 12b for Fig.12a The structural schematic diagram of the folding device in the folded state is shown.

[0047] Fig.13 A schematic diagram of a connection structure between a first flexible interconnection component and a second flexible interconnection component provided in an embodiment of the present application.

[0048] Fig.14a A schematic structural diagram of a flattened state of another tri-fold folding device provided in an embodiment of the present application.

[0049] Fig.14b for Fig.14a The structural schematic diagram of the folding device in the folded state is shown.

[0050] Fig.15a A schematic structural diagram of a five-fold folding device in an unfolded state provided in an embodiment of the present application.

[0051] Fig.15b A schematic structural diagram of a folding state of a foldable device that is folded in half according to an embodiment of the present application.

[0052] Fig.16a A structural schematic diagram of another folding device in an unfolded state provided in an embodiment of the present application.

[0053] Fig.16b for Fig.16a The structural schematic diagram of the folding device in the folded state is shown.

[0054] In the figure: 001-folding device; 10-first main body; 20-second main body; 30-first rotating shaft; 110-first middle frame; 120-first back cover; 111-first frame; 112-first middle plate; 140-first printed circuit board; 210-second middle frame; 211-second frame; 212-second middle plate; 220-second back cover; 240-second printed circuit board; 50-first flexible interconnection component; 40-display screen; 31-first door panel; 32-second door panel; 33-axis body; 51-first section; 52-second section; 53-third section; 301-first channel; 303-first adhesive layer; 304-second adhesive layer; 135-protrusion; 310-first limiting member; 320-second limiting member; 311-first abutting portion; 312-second abutting portion; 313-pressing plate ;510-first plate;520-first signal line;530-second plate;540-second signal line;531-first optical transceiver;54-second optical transceiver;55-slider;552-coupling element;56a-connecting element;56b-connecting element;05-second flexible interconnection component;06-third main body;071-third rotating shaft;08-fourth main body;09-fifth main body;072-fourth rotating shaft;061-third flexible interconnection component;062-fourth flexible interconnection component;004-flexible interconnection component;041-first sub-section;042-second sub-section;043-third sub-section;002-first main body;003-second main body;551-limiting groove;021-first sub-region;022-second sub-region;330-third limiting member;03-second rotating shaft. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0056] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0057] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the components in the drawings.

[0058] The present application provides a foldable device, which may be, for example, a mobile phone, a tablet computer (pad), a personal digital assistant (PDA) or a television, etc. For the convenience of description, the following description takes the foldable device as a mobile phone as an example.

[0059] Figure 1a It is a schematic diagram of the structure of the folding device 001 in a flattened state. Figure 1b This is a schematic diagram of the structure of the folding device 001 in the folded state. Figure 1a and Figure 1b The foldable device 001 can be folded or unfolded, so as to change the size of the foldable device 001 according to actual needs and usage scenarios. For example, when you need to watch the screen, you can unfold the foldable device 001 to Figure 1a In the state shown, the display screen of the foldable device 001 is unfolded so that the screen can be better viewed. When you need to answer or make a call, you can fold the foldable device 001 to Figure 1b The state shown makes it easier for users to hold and improves the user experience.

[0060] It is understandable that the folding state of the folding device 001 is not limited to Figure 1b The folding device 001 can have multiple folding states, for example, Figure 1a The flattened state and Figure 1b The folding device 001 may also have multiple folding states.

[0061] like Figure 1a As shown, the folding device 001 includes a first body 10, a second body 20 and a first rotating shaft 30. The first body 10 and the second body 20 are both connected to the first rotating shaft 30. When the folding device 001 is in an unfolded state, the first body 10, the second body 20 and the first rotating shaft 30 are in a flattened state, and the first body 10, the second body 20 and the first rotating shaft 30 are arranged in sequence along the x direction.

[0062] For the convenience of description, the thickness direction of the folding device 001 is defined as the first direction, which is indicated by the z direction in the following text and drawings, and the axial extension direction of the first rotating shaft 30 is defined as the second direction, which is indicated by the y direction in the following text and drawings, wherein the x direction, the y direction and the z direction are perpendicular to each other.

[0063] It is understandable that the aforementioned perpendicularity can allow for assembly errors and manufacturing errors. For example, the perpendicularity between the x-direction and the z-direction is not limited to the angle between the x-direction and the z-direction being 90°. For example, the angle between the x-direction and the z-direction can be 85° to 95°. For example, it can be 85°, 87°, 88°, 89°, 90°, 91°, 92°, 93° or 95°.

[0064] Figure 2 is a schematic diagram of the exploded structure of the folding device 001. Figure 2 The first body 10 includes a first middle frame 110 , and the first middle frame 110 includes a first frame 111 and a first middle plate 112 . The first frame 111 is connected to the first rotating shaft 30 .

[0065] The first middle plate 112 is located in the area surrounded by the first frame 111 and is connected to the inner wall of the first frame 111. For example, the first frame 111 and the first middle plate 112 are connected as an integrally formed part. The folding device 001 may also include a first rear cover 120. The first rear cover 120 is connected to the first frame 111, and the first rear cover 120 and the first middle plate 112 are stacked along the z direction.

[0066] In some embodiments, there is a gap between the first rear cover 120 and the first middle plate 112, and the first rear cover 120, the first middle plate 112 and the first frame 111 together form a receiving space. The circuit board, battery and other components of the folding device 001 are received in the receiving space.

[0067] Exemplarily, the first body 10 may further include a first printed circuit board (PCB) 140. In some embodiments, the first printed circuit board 140 is located between the first back cover 120 and the first middle plate 112. In some embodiments, the first middle plate 112 is located between the first printed circuit board 140 and the first back cover 120.

[0068] It is understandable that the first middle frame 110, the first back cover 120 and the first printed circuit board 140 are only examples of some components on the first body 10. The first body 10 may also be provided with components such as a camera, an antenna or a sensor.

[0069] The second body 20 may include a second middle frame 210, and the second middle frame 210 may include a second frame 211 and a second middle plate 212. The second frame 211 is connected to the first rotating shaft 30. The second body 20 may also include a second printed circuit board 240. For the structural description of the second body 20, please refer to the description of the first body 10. The folding device 001 may also include a second back cover 220, and the second back cover 220 and the second middle frame 210 are stacked.

[0070] It is understandable that the devices contained in the aforementioned receiving space of the first body 10 and the devices contained in the receiving space of the second body 20 may not be completely the same. The shapes of the first middle plate 112 and the second middle plate 212 may be different. This embodiment of the application does not limit this.

[0071] In the embodiment of the present application, the folding device 001 further includes a first flexible interconnection component 50, one end of the first flexible interconnection component 50 is located on the first body 10, and the other end of the first flexible interconnection component 50 is located on the second body 20. The device on the first body 10 and the device on the second body 20 can communicate through the signal line formed on the first flexible interconnection component 50. For example, one end of the first flexible interconnection component 50 is connected to the first printed circuit board 140 for signal connection, and the other end of the first flexible interconnection component 50 is connected to the second printed circuit board 240 for signal connection.

[0072] In some embodiments, the first flexible interconnect component 50 is passed through the first rotating shaft 30, and the thickness of the first rotating shaft 30 along the z direction can be fully utilized to save the thickness of the folding device 001. In addition, during the folding or unfolding of the folding device 001, the first rotating shaft 30 can also constrain the movement space of the first flexible interconnect component 50 to avoid a large movement of the first flexible interconnect component 50 along the z direction.

[0073] The embodiment of the present application does not limit the structure of the first rotating shaft 30. For example, the first rotating shaft 30 includes a first door panel 31, a second door panel 32 and a shaft 33. When the folding device 001 is in a flattened state, the first door panel 31, the second door panel 32 and the shaft 33 are arranged along the x direction. The first door panel 31 and the shaft 33 are rotatably connected, for example, the first door panel 31 and the shaft 33 are rotatably connected through an arc groove and a slider. In an embodiment in which the first flexible interconnection component 50 is inserted through the first rotating shaft 30, the first flexible interconnection component 50 is inserted through the arc groove. Alternatively, the first door panel 31 and the shaft 33 are rotatably connected through a hinge. Similarly, the second door panel 32 and the shaft 33 are rotatably connected, for example, the second door panel 32 and the shaft 33 are rotatably connected through an arc groove and a slider; or, the second door panel 32 and the shaft 33 are rotatably connected through a hinge. The first frame 111 is connected to the first door panel 31, for example, by screwing or clamping. The second frame 211 is connected to the second door panel 32 , for example, by screwing or snapping.

[0074] In some embodiments, the folding device 001 may further include a display screen 40. The first body 10, the second body 20 and the first rotating shaft 30 jointly support the display screen 40. When the folding device 001 is in a folded state, the angle between the surface of the first body 10 facing the display screen 40 and the surface of the second body 20 facing the display screen 40 may be -10° to 10°, and the opening of the angle faces the display screen 40, for example, may be ±10°, ±9°, ±8°, ±7°, ±6°, ±5°, ±4°, ±3°, ±2°, ±1° or 0°. When the folding device 001 is in a flattened state, the angle between the surface of the first body 10 facing the display screen 40 and the surface of the second body 20 facing the display screen 40 can be 170° to 190°, and the opening of the angle faces the display screen 40, for example, can be 170°, 172°, 175°, 178°, 179°, 180°, 181°, 182°, 185°, 188° or 190°.

[0075] The embodiment of the present application does not limit the folding type of the folding device 001. In some embodiments, the folding device 001 is an inner folding structure, that is, when the folding device 001 is in the folded state, the display screen 40 is located between the first body 10 and the second body 20. In other embodiments, the folding device 001 is an outer folding structure, that is, when the folding device 001 is in the folded state, the first body 10 and the second body 20 are both located between the opposite ends of the display screen 40.

[0076] Exemplarily, the display screen 40 can be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, an active-matrix organic light emitting diode or an active-matrix organic light emitting diode (AMOLED) display screen, a flexible light-emitting diode (FLED) display screen, a MiniLED display screen, a MicroLED display screen, a Micro-OLED display screen, a quantum dot light emitting diode (QLED) display screen, etc.

[0077] Figure 3a This is a schematic structural diagram of the first flexible interconnection component 50 when the folding device 001 provided in an embodiment of the present application is in a folded state. Figure 3a The illustration is for illustrating the extension path of the first flexible interconnection component 50 , and does not limit the first flexible interconnection component 50 to be located on the surface of the folding device 001 .

[0078] Figure 3b This is a schematic diagram of the structure of the first flexible interconnection component 50 when the folding device 001 provided in the embodiment of the present application is in the unfolded state. Figure 3b , the first flexible interconnection component 50 includes a first segment 51, a second segment 52, and a third segment 53 connected in sequence. When the folding device 001 is in a flattened state, the vertical projection of the second segment 52 on the folding device 001 is located within the first rotating shaft 30. The vertical projection of the second segment 52 on the folding device 001 is not perpendicular to the axis (dashed line n) of the first rotating shaft 30. That is, the vertical projection of the second segment 52 on the folding device 001 is not perpendicular to the y direction. For example, when the folding device 001 is in a flattened state, the extension direction of the second segment 52 is not perpendicular to the y direction.

[0079] Figure 3b The middle dashed line n is the axis of the first rotating shaft 30, and the dashed line n is parallel to the y direction. The axis of the first rotating shaft 30 refers to the rotation axis of the first rotating shaft 30 and its extension line.

[0080] The vertical projection refers to the area enclosed by the projection of the outer contour of the second section 52 on the plane where the folding device 001 is located, along a direction perpendicular to the folding device 001 (ie, along the z direction). The rest of the description of the vertical projection in the text is similar.

[0081] When the folding device 001 is adjusted between the unfolded state and the folded state, the second section 52 is bent. The longer the vertical projection of the second section 52 on the folding device 001 is, the larger the bending radius of the second section 52 is.

[0082] Figure 4 Schematic diagram of the vertical projection of the second section 52 and the bending state of the second section 52. Figure 4 In FIG. 1( a ), the included angle between the vertical projection (area A) of the second section 52 on the folding device 001 and the axis of the first rotating shaft 30 is α. When the folding device is in the folded state, the bending height of the second section 52 is H1. Figure 4 In Figure (b), the included angle between the vertical projection (B area) of the second section 52 on the folding device and the axis of the first rotating shaft 30 is β. The aforementioned bending height refers to the maximum dimension of the second section 52 in the bending state along the thickness direction of the folding device. When the folding device is in the folded state, the bending height from the second section 52 to the first rotating shaft 30 is H2. Among them, β is greater than α, the length of the A area is greater than the length of the B area, and when the folding device is in the folded state, the second section 52 is bent and the bending height H2 is greater than the bending height H1.

[0083] Compared with the vertical projection of the second section 52 on the folding device 001 being perpendicular to the axis of the first rotating shaft 30, the vertical projection of the second section 52 on the folding device 001 is not perpendicular to the axis of the first rotating shaft 30, which can reduce the bending radius of the second section 52 when it is bent, and reduce the space required for the bending process of the second section 52. The space of the first rotating shaft 30 used to accommodate the second section 52 is reduced, thereby reducing the volume of the first rotating shaft 30, which is conducive to improving the integration of the folding device 001. In addition, the bending radius of the second section 52 is reduced when it is bent, and during the folding process of the folding device 001, the bending arc of the second section 52 is smaller, the movement margin of the second section 52 is smaller, and the friction of the second section 52 during the folding process is smaller, which is conducive to improving the life of the folding device 001.

[0084] Exemplarily, in some embodiments, the angle between the vertical projection of the second segment 52 on the folding device 001 and the axis of the first rotating shaft 30 is 10° to 80°. In this way, during the folding process of the folding device 001, the bending arc of the second segment 52 is small, and the space required for the movement of the second segment 52 is small, which can reduce the space occupied by the first flexible interconnection component 50 and save the space of the folding device 001. In some embodiments, the angle between the vertical projection of the second segment 52 on the folding device 001 and the axis of the first rotating shaft 30 is 30° to 70°. In this way, the area of ​​the vertical projection of the second segment 52 on the folding device 001 is small, the size of the second segment 52 in the y direction is small, and the bending arc of the second segment 52 is small. The second segment 52 in the z direction (such as Figure 3b The distance of movement of the second section 52 on the folding device 001 is small, and the space occupied by the first flexible interconnection component 50 is small. For example, the angle between the vertical projection of the second section 52 on the folding device 001 and the axis of the first rotating shaft 30 can be 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75° or 80°. In some embodiments of the present application, the angle between the vertical projection of the second section 52 on the folding device 001 and the axis of the first rotating shaft 30 can also be 5°, 3° or 85°, etc.

[0085] The embodiment of the present application does not limit the shape of the first flexible interconnection component 50. For example, the first flexible interconnection component 50 can be a strip-shaped structure. The first flexible interconnection component 50 can be a regular rectangular strip-shaped structure or an irregular strip-shaped structure. In addition, the widths of the first end 51, the second section 52, and the third section 53 can be the same or different, and the embodiment of the present application does not limit this.

[0086] The embodiment of the present application does not limit the connection method between the first body 10 and the first section 51. The first body 10 and the first section 51 can be connected by a glue layer or a stopper.

[0087] Please return Figure 3b In some embodiments of the present application, the folding device 001 further includes a first stopper 310 and a second stopper 320. The first stopper 310 is connected to the first body 10 and is arranged with the first body 10 to form a first channel 301 (such as Figure 5a As shown in FIG. 3 , the first section 51 is disposed in the first channel 301. The second stopper 320 is connected to the second body 20 and is surrounded by the second body 20 to form a second channel, and the third section 53 is disposed in the second channel.

[0088] When the folding device 001 is in the flattened state, the line between the first stopper 310 and the second stopper 320 is not perpendicular to the axis of the first rotating shaft 30. The first channel 301 constrains the first section 51, and the second channel constrains the third section 53, thereby constraining the extension path of the second section 52 between the first section 51 and the third section 53. The first stopper 310 and the second stopper 320 jointly limit the extension direction of the second section 52, so that the extension direction of the second section 52 is not perpendicular to the axis of the first rotating shaft 30.

[0089] The line between the first stopper 310 and the second stopper 320 may be a line between the geometric center of the first stopper 310 and the geometric center of the second stopper 320. Alternatively, the line between the end of the first stopper 310 away from the first body 10 and the end of the second stopper 320 away from the first body 10.

[0090] The present embodiment does not limit the structure of the first stopper 310. Figure 5a , Figure 5b and Figure 5c Description is given as an example.

[0091] Figure 5a This is a schematic diagram of the structure of a first stopper 310 and a first body 10 provided in an embodiment of the present application. Figure 5a The first position-limiting member 310 includes a first abutting portion 311, a pressure plate 313, and a second abutting portion 312 connected in sequence, and the first abutting portion 311 and the second abutting portion 312 abut against both sides of the first section 51, respectively. The first main body 10, the first abutting portion 311, the pressure plate 313, and the second abutting portion 312 are jointly arranged to form a first channel 301. The pressure plate 313, the first section 51, and the first main body 10 are stacked. In this way, the first abutting portion 311 and the second abutting portion 312 jointly constrain the first section 51, limiting the space in which the first section 51 can move, and the pressure plate 313 and the first main body 10 jointly constrain the movement space of the first section 51. Constrain the movable path of the first section 51.

[0092] The embodiments of the present application do not limit the shapes of the first abutting portion 311, the pressing plate 313, and the second abutting portion 312. For example, the first abutting portion 311 may be a square column, a round column, or an irregular shape. The second abutting portion 312 may have the same shape as the first abutting portion 311, or may be different. The pressing plate 313 may be, for example, a plate-like structure. For example, in some embodiments, the first abutting portion 311, the pressing plate 313, and the second abutting portion 312 may be connected as an integrally formed part.

[0093] In some embodiments of the present application, Figure 5a As shown, the distance between the pressing plate 313 and the first body 10 is greater than the thickness of the first section 51, so that the first section 51 can move between the pressing plate 313 and the first body 10. Figure 5a In the embodiment, the first section 51 can move along the extension direction of the first section 51 , and the first section 51 can move between the pressing plate 313 and the first body 10 , and the first section 51 has at least two movement directions.

[0094] Figure 5b A schematic structural diagram of another first position-limiting member 310 and a first body 10 provided in an embodiment of the present application. Figure 5b In the embodiment, the surface of the pressing plate 313 facing the first section 51 abuts against the first section 51. In this way, the pressing plate 313 and the first body 10 can constrain the first section 51 and limit the relative movement of the first section 51 between the pressing plate 313 and the first body 10. Figure 5b For the rest of the structure, see Figure 5a Description.

[0095] Figure 5c This is a schematic structural diagram of another first position-limiting member 310 and a first body 10 provided in an embodiment of the present application. Figure 5c In the embodiment, the first channel 301 and the first section 51 are interference fit. In this way, the first section 51 cannot move relative to the first stopper 310. The first stopper 310 prevents the first section 51 from moving relative to the first body 10, thereby preventing the first section 51 from rubbing against the first body 10 and affecting the life of the components on the first body 10.

[0096] The embodiment of the present application does not limit the implementation method of the interference fit between the first channel 301 and the first section 51. Exemplarily, the distance between the pressing plate 313 and the first body 10 is less than the thickness of the first section 51, so that the first channel 301 and the first section 51 are interference fit. For example, Figure 5c In the embodiment, the surface of the pressing plate 313 facing the first section 51 is a serrated surface, the serrated surface abuts against the first section 51 , and the serrated surface presses the first section 51 , thereby preventing the first section 51 from moving relative to the first body 10 .

[0097] In some embodiments of the present application, the distance between the second abutting portion 312 and the first abutting portion 311 is smaller than the width of the first section 51 , so that an interference fit between the first channel 301 and the first section 51 can also be achieved.

[0098] The embodiment of the present application does not limit the position of the first stopper 310 on the first body 10. In some embodiments, the first stopper 310 is disposed close to the first rotation axis 30, for example, the first stopper 310 is located at one end of the first body 10 close to the first rotation axis 30. In this way, the first stopper 310 is close to the second section 52, and the first stopper 310 can better constrain the extension path of the second section 52.

[0099] In the embodiment of the present application, the structure of the second limiting member 320 can be found in the aforementioned Figure 5a , Figure 5b as well as Figure 5c The structural description of any one of the first limiting members 310 will not be repeated here.

[0100] The embodiment of the present application does not limit the connection method between the first stopper 310 and the first body 10. For example, the first stopper 310 and the first body 10 are connected by clamping, screwing, welding or bonding. In some embodiments, the first stopper 310 can be connected to the first body 10 as an integral molded part. As mentioned above, the first body 10 can include a first middle plate 112 (such as Figure 6a In some embodiments, the first stopper 310 can be connected to the first middle plate 112 by snapping, screwing, welding, bonding or connecting to form an integral part. The connection method between the second stopper 320 and the second body 20 is similar, and will not be repeated here.

[0101] Figure 6a A schematic diagram of the structure of the first stopper 310 and the second stopper 320 provided in the embodiment of the present application. Figure 6a The first stopper 310 and the first middle plate 112 are connected as an integrally formed part. In other words, the first middle plate 112 is provided with a first channel 301. The first section 51 is passed through the first channel 301. In this way, the first stopper 310 is integrated on the first middle plate 112, so that the space occupied by the first body 10 can be reduced.

[0102] Similarly, the second stopper 320 and the second middle plate 212 are connected to form an integrally formed part. The second middle plate 212 is provided with a second channel. The third section 53 is arranged in the second channel. In this way, the space occupied by the second body 20 can be reduced.

[0103] In the embodiments of the present application, the number of the limiting members is not limited to two. In some embodiments, the folding device 001 may further include a third limiting member.

[0104] Figure 6b This is a schematic diagram of the structure of the third stopper 330 and the first flexible interconnection assembly 50 provided in the embodiment of the present application. Figure 6b The folding device 001 may further include a third stopper 330, which may be connected to the first section 51. The third stopper 330 may increase the connection position between the first flexible connection component 50 and the first body 10. The extension path of the first section 51 may be further restricted. Figure 5a , Figure 5b as well as Figure 5c The structure of any one of the first limiting members 310 is the same and will not be described in detail here.

[0105] In some embodiments, the third stopper 330 may be connected to the third section 53. Alternatively, in some embodiments, the third stopper 330 may be connected to the second section 52. By analogy, the folding device 001 may also include a fourth stopper, a fifth stopper, and the like, which will not be described in detail herein.

[0106] In other embodiments of the present application, the first body 10 may be connected to the first section 51 in other ways, not limited to the first limiter 310 . Similarly, the second body 20 and the third section 53 are not limited to being connected via the second limiter 320 .

[0107] Figure 6c This is a schematic diagram of another first flexible interconnection assembly 50 connection structure provided in an embodiment of the present application. Figure 6c , the first body 10 and the first section 51 are connected by the first adhesive layer 303. In this way, the first adhesive layer 303 relatively fixes the positions of the first section 51 and the first body 10, thereby constraining the position of the first section 51.

[0108] Similarly, the second body 20 and the third section 53 can also be connected by the second adhesive layer 304. The second adhesive layer 304 fixes the positions of the second body 20 and the third section 53 relatively, thereby constraining the position of the third section 53. When the folding device 001 is in the unfolded state, the line between the first adhesive layer 303 and the second adhesive layer 304 is not perpendicular to the axis of the first rotating shaft 30, and the first adhesive layer 303 and the second adhesive layer 304 jointly constrain the extension direction of the second section 52, so that the extension direction of the second section 52 is not perpendicular to the axis of the first rotating shaft 30. Thus, the space occupied by the second section 52 is reduced.

[0109] It can be understood that in other embodiments of the present application, the structure that constrains the extension direction of the second section 52 may be other structures.

[0110] Figure 7 This is a schematic diagram of the structure of another first flexible interconnection component 50 provided in an embodiment of the present application. Figure 7The line between the first stopper 310 and the second stopper 320 is perpendicular to the axis of the first shaft 30. The structure on the first shaft 30 can constrain the extension direction of the second section 52 so that the extension direction of the second section 52 is not perpendicular to the axis of the first shaft 30.

[0111] Figure 7 In the embodiment, the first rotating shaft 30 is provided with a limiting protrusion 135, the limiting protrusion 135 abuts against the second section 52, and the limiting protrusion 135 and the first limiting member 310 jointly restrict the extension path of the second section 52, so that the extension direction of the second section 52 is not perpendicular to the axis of the first rotating shaft 30. In some embodiments, the limiting protrusion 135 can be connected to the shaft body 33 (such as the first rotating shaft 30) of the first rotating shaft 30. Figure 2 In some embodiments, the limiting protrusion 135 can be connected to the shaft body 33 by other means such as clamping or welding.

[0112] In the embodiment of the present application, the extension paths of the first section 51 and the third section 53 are not limited. They can be set according to the distribution relationship of the components on the first body 10 and the second body 20. In addition, the extension direction of the first section 51, the extension direction of the third section 53, and the extension direction of the second section 52 can be the same or different, and the embodiment of the present application does not limit this. Figure 3b In the embodiment, the extension path of the first section 51 is a straight line, and the extension path of the first section 51 is not perpendicular to the axis of the first rotating shaft 30. The extension path of the third section 53 is a straight line, and the extension path of the third section 53 is not perpendicular to the axis of the first rotating shaft 30. The extension direction of the first section 51, the extension direction of the third section 53, and the extension direction of the second section 52 are the same.

[0113] Figure 8a Another distribution relationship diagram of the first flexible interconnection component 50 provided in the embodiment of the present application. Figure 8a The extension path of the first section 51 is a curve, and the extension path of the third section 53 is a curve.

[0114] Figure 8b This is another distribution relationship diagram of the first flexible interconnection component 50 provided in the embodiment of the present application. Figure 8b , the extending direction of the first section 51, the extending direction of the second section 52 and the extending direction of the third section 53 are all the same.

[0115] Figure 8c This is another distribution relationship diagram of the first flexible interconnection component 50 provided in the embodiment of the present application. Figure 8c The extension path of the first section 51 is a straight line, the extension path of the third section 53 is a straight line, the extension direction of the first section 51 is the same as the extension direction of the third section 53, and the extension direction of the first section 51 is different from the extension direction of the second section 52.

[0116] It is understood that in the embodiment of the present application, the extension path of the first flexible interconnection component 50 is not limited to Figure 8a , Figure 8b and Figure 3b The method shown can also be extended in other ways, which will not be listed here one by one.

[0117] In the embodiment of the present application, the interconnection component that interconnects the first body 10 and the second body 20 is not limited to one. In other words, the number of the first flexible interconnection components 50 can be one, two or more. In the embodiment where there are multiple first flexible interconnection components 50, the multiple first flexible interconnection components 50 are arranged at intervals along the axial direction (y direction) of the first rotating shaft 30.

[0118] Fig. 9 FIG. 5 is a schematic diagram of the structure of a folding device 001 including two first flexible interconnection components 50. Fig. 9 , the folding device 001 includes two first flexible interconnection components 50, and the two first flexible interconnection components 50 are connected to the first body 10 and the second body 20. The two first flexible interconnection components 50 can disperse the structure that interconnects the first body 10 and the second body 20. Compared with one first flexible interconnection component 50, providing two first flexible interconnection components 50 can reduce the width of each first flexible interconnection component 50.

[0119] Fig. 9 In the example, the structures of the two first flexible interconnection components 50 may be the same or different, and this embodiment of the present application does not limit this.

[0120] As mentioned above, the first body 10 and the second body 20 are connected by a signal through the first flexible interconnection component 50 to achieve signal transmission. The aforementioned signal connection can be an electrical connection or an optical communication connection. In other words, the first flexible interconnection component 50 can transmit an optical signal, or the first flexible interconnection component 50 can transmit an electrical signal.

[0121] Fig.10 This is a schematic diagram of the internal structure of the first flexible interconnection component 50 provided in the embodiment of the present application. Fig.10 The first flexible interconnection component 50 includes a first board 510 and a first signal line 520. The first signal line 520 is buried in the first board 510. The first signal line 520 includes an electrical transmission medium. The material of the first board 510 may include epoxy resin or glue. The electrical transmission medium may be, for example, a wiring layer. In this way, electrical signals may be transmitted in the first flexible interconnection component 50. For example, the first flexible interconnection component 50 may be regarded as a flexible printed circuit (FPC).

[0122] As described above, the first flexible interconnection component 50 includes a first section 51, a second section 52, and a third section 53 connected in sequence. Among them, the first board 510 is partially located in the first section 51, partially located in the second section 52, and partially located in the third section 53. Similarly, the first signal line 520 is partially located in the first section 51, partially located in the second section 52, and partially located in the third section 53. In other words, the first board 510 can be regarded as three sections connected in sequence, and the first signal line 520 can be regarded as three sections connected in sequence. The first section 51 includes a section of the first board 510 and a section of the first signal line 520, and the second section 52 and the third section 53 are the same.

[0123] In some embodiments of the present application, the first flexible interconnection component 50 includes a second plate body 530 and a second signal line 540. The second signal line 540 is buried in the second plate body 530. The second plate body 530 includes an optical transmission medium. In this way, an optical signal can be transmitted in the first flexible interconnection component 50. In addition, in the embodiment where the material of the first rotating shaft includes a metal material, the metal material has a small effect on the optical signal, which can reduce the effect on the loss of the optical signal, so that the transmission rate of the optical signal in the first flexible interconnection component 50 is guaranteed. Among them, the optical transmission medium can be an optical fiber. The first flexible interconnection component 50 can be regarded as a flexible optical fiber, an optical flexible printed circuit (OFPC), an optical cable, a flexible terahertz (THz) fiber, a THz cable, a THz FPC, a flexible optoelectronic composite cable, a flexible THz electrical composite cable, etc.

[0124] In the embodiment where the first flexible interconnect assembly 50 includes the second signal line 540 , the first flexible interconnect assembly 50 may further include an optical transceiver.

[0125] Fig.11a This is a schematic diagram of the connection structure of a first flexible interconnection component 50 provided in an embodiment of the present application. Fig.11a In some embodiments, the first flexible interconnect assembly 50 may further include a first optical transceiver 531 and a second optical transceiver 54. The first optical transceiver 531 is connected to the first body 10. The second optical transceiver 54 is connected to the second body 20. One end of the second signal line 540 is connected to the first optical transceiver 531, and the other end of the second signal line 540 is connected to the second optical transceiver 54.

[0126] When the folding device is in a flattened state, the distance between one end of the second signal line 540 and the first optical transceiver 531 is a first distance D1; when the folding device is in a folded state, the distance between one end of the second signal line 540 and the first optical transceiver 531 is a second distance D2; the second distance D2 is greater than the first distance D1. In this way, during the adjustment of the folding device 001 from the unfolded state to the folded state, the distance between one end of the second signal line 540 and the first optical transceiver 531 is variable. The second signal line 540 is provided with a margin for extension or contraction. The stress in the second signal line 540 is released, and the service life of the second signal line 540 is increased. In addition, the aforementioned margin for extension or contraction can reduce the friction between the second signal line 540 and the device on the first body 10, and reduce the influence of the second signal line 540 on the device on the first body 10.

[0127] The variable distance between one end of the second signal line 540 and the first optical transceiver 531 can be achieved in a variety of ways. In some embodiments, Fig.11a As shown, one end of the second signal line 540 and the first optical transceiver 531 are both slidably connected to the slider 55 .

[0128] For example, the first optical transceiver 531 and the first body 10 may be connected in a chip on board (COB) manner. Alternatively, the first optical transceiver 531 and the first body 10 may be connected in a bi-directional optical subassembly on board (BOB) manner.

[0129] Fig.11b FIG. 5 is a schematic diagram showing a structure in which one end of the second signal line 540 is connected to the first optical transceiver 531. Fig.11b The slider 55 is provided with a limit groove 551, and one end of the second signal line 540 is slidably connected to the limit groove 551, and the limit groove 551 can limit the sliding direction of one end of the second signal line 540. The setting of the slider 55 can make one end of the second signal line 540 and the first optical transceiver 531 approach or move away from each other, thereby adjusting the distance between one end of the second signal line 540 and the first optical transceiver 531.

[0130] In some embodiments of the present application, the first flexible interconnection component 50 may further include a coupling element 552 (eg, Fig.11c As shown in FIG. 5 , the second signal line 540 and the first optical transceiver 531 may be coupled via a coupling element 552. The coupling element 552 is connected to the second signal line 540 or the first optical transceiver 531. The coupling element 552 may couple the optical signal between the second signal line 540 and the first optical transceiver 531.

[0131] Fig.11c is a schematic diagram of the structure of the coupling element 552. Fig.11c The coupling element 552 is a coupling lens, which can couple optical signals so that the optical signals propagate between the second signal line 540 and the first optical transceiver 531. Exemplarily, the second signal line 540 is connected to the coupling element 552, and the coupling element 552 couples the signal of the second signal line 540 to the first optical transceiver 531. Conversely, the coupling element 552 couples the first optical transceiver 531 to the second signal line 540.

[0132] Fig.11d This is a schematic diagram of a connection structure of another first flexible interconnection component 50 provided in an embodiment of the present application. Fig.11d , Fig.11d In the embodiment, the distance between one end of the second signal line 540 and the second optical transceiver 54 is a first dimension E1; when the folding device is in the folded state, the distance between one end of the second signal line 540 and the second optical transceiver 54 is a second dimension E2. The second dimension E2 is greater than the first dimension E1. In this way, during the adjustment of the folding device 001 from the unfolded state to the folded state, the distance between one end of the second signal line 540 and the second optical transceiver 54 is adjustable, so that the second signal line 540 has a margin for extension or contraction. The stress in the second signal line 540 is released, and the service life of the second signal line 540 is increased.

[0133] The connection method between the second signal line 540 and the second optical transceiver 54 can be referred to the aforementioned description of the second signal line 540 and the first optical transceiver 531 , which will not be described again here. Fig.11d For the rest of the description, see Fig.11a , I will not go into details here.

[0134] In some other embodiments of the present application, the distance between the first optical transceiver 531 and the first body 10 is also adjustable.

[0135] Fig.11e This is a schematic diagram of the connection structure of another first flexible interconnection component 50 provided in an embodiment of the present application. Fig.11e The first flexible interconnection assembly 50 further includes a connecting element 56a. The first optical transceiver 531 is connected to the first body 10 through the connecting element 56a.

[0136] When the folding device is in the flattened state, the distance between one end of the connecting element 56a and the first optical transceiver 531 is a third distance D3, and when the folding device is in the folded state, the distance between one end of the connecting element 56a and the first optical transceiver 531 is a fourth distance D4. The fourth distance D4 is greater than the third distance D3.

[0137] The distance between one end of the connecting element 56a and the first optical transceiver 531 is adjustable, so that the distance between the connecting element 56a and the second signal line 540 is adjustable. During the folding process of the folding device, the distance between the second signal line 540 and the first optical transceiver 531 increases, so that the second signal line 540 has a margin for extension or contraction. The stress in the second signal line 540 is released, and the service life of the second signal line 540 is improved. In addition, since the distance between one end of the connecting element 56a and the first optical transceiver 531 is adjustable, the length of the second signal line 540 may not be adjustable. For example, when the folding device is in a flattened state and a folded state, the extension path of the second signal line 540 may not change. The distance between one end of the connecting element 56a and the first optical transceiver 531 is adjusted to compensate for the length requirement of the second signal line 540 when the folding device is in a folded state.

[0138] The embodiment of the present application does not limit the structure of the connecting element 56 a. For example, the connecting element 56 a may be an FPC.

[0139] In some embodiments, the distance between one end of the connecting element 56a and the first optical transceiver 531 is adjustable in a variety of ways. Exemplarily, the first optical transceiver 531 is slidably connected to the first body 10, so that the first optical transceiver 531 can move relative to the first body 10 to adjust the distance between the first optical transceiver 531 and one end of the connecting element 56a. For example, a limiting groove is provided on the first body 10, and the first optical transceiver 531 is located in the limiting groove and slidably connected to the limiting groove, so that the distance between one end of the connecting element 56a and the first optical transceiver 531 is adjustable.

[0140] Fig.11f This is a schematic diagram of the connection structure of another first flexible interconnection component 50 provided in an embodiment of the present application. Fig.11f , the first optical transceiver 531 can also be connected to the second body 20 through the connecting element 56b. When the folding device is in the flattened state, the distance between one end of the connecting element 56b and the second optical transceiver 54 is the third distance E3, and when the folding device is in the folded state, the distance between one end of the connecting element 56b and the second optical transceiver 54 is the fourth distance E4. The fourth distance E4 is greater than the third distance E3. For the connection relationship between the connecting element 56b and the second optical transceiver 54, please refer to the description of the connecting element 56a and the first optical transceiver 531, which will not be repeated here.

[0141] In the embodiment of the present application, the folding device 001 is not limited to a two-fold device. For example, the folding device 001 can be a three-fold, four-fold or more folding device.

[0142] Fig.12aThis is a schematic diagram of another folding device 001 in a flattened state provided in an embodiment of the present application. Fig.12a The folding device 001 further includes a second flexible interconnection component 05, a second rotation shaft 03 and a third body 06. The second body 20 and the third body 06 are both rotatably connected to the second rotation shaft 03. One end of the second flexible interconnection component 05 is connected to the second body 20, and the other end of the second flexible interconnection component 05 is connected to the third body 06. When the folding device 001 is in a flattened state, the first body 10, the first rotation shaft 30, the second body 20, the second rotation shaft 03 and the third body 06 are arranged in sequence.

[0143] Since the first flexible interconnection assembly 50 occupies a small space, the volume of the first rotating shaft 30 can be reduced, and the volume of the folding device 001 having a three-fold structure including the first flexible interconnection assembly 50 is also reduced accordingly.

[0144] In the embodiment of the present application, the structure of the second flexible interconnection component 05 can refer to the description of the first flexible interconnection component 50. The connection mode of the second flexible interconnection component 05 with the second body 20 and the third body 06 can refer to the description of the connection mode of the first flexible interconnection component 50 with the first body 10 and the second body 20. The structure of the second rotating shaft 03 can refer to the description of the structure of the first rotating shaft 30, which will not be repeated here.

[0145] The embodiment of the present application does not limit the folding method of the three-fold folding device 001.

[0146] Figure 12b for Fig.12a The folding device 001 is shown in the schematic diagram of the structure in the folded state. Figure 12b , the widths of the first body 10, the second body 20 and the third body 06 are slightly different. When the folding device 001 is in the folded state, the first body 10, the second body 20 and the third body 06 are stacked along the thickness direction of the folding device 001.

[0147] The embodiment of the present application does not limit the connection method of the first flexible interconnection component 50 and the second flexible interconnection component 05. For example, in some embodiments, the first flexible interconnection component 50 and the second flexible interconnection component 05 are both connected to the second printed circuit board 240 of the second body 20. The position where the first flexible interconnection component 50 and the second printed circuit board 240 are connected is spaced from the position where the second flexible interconnection component 05 and the second printed circuit board 240 are connected.

[0148] In some embodiments, the first flexible interconnect assembly 50 and the second flexible interconnect assembly 05 are located on the same side. In some embodiments, the first flexible interconnect assembly 50 and the second flexible interconnect assembly 05 are located on different sides.

[0149] Fig.13 A schematic diagram of a connection structure between a first flexible interconnection component 50 and a second flexible interconnection component 05 provided in an embodiment of the present application. Fig.13 In the embodiment, the first flexible interconnection component 50 and the second flexible interconnection component 05 are connected as an integrally formed part. Exemplarily, the first interconnection component 50 and the second flexible interconnection component 05 are both connected to the second printed circuit board 240. The first interconnection component 50 and the second flexible interconnection component 05 share the same connector connected to the second printed circuit board 240.

[0150] In some embodiments of the present application, the widths of the first body 10 , the second body 20 , and the third body 06 may be unequal.

[0151] Fig.14a This is a structural schematic diagram of another tri-fold folding device 001 in a flattened state provided in an embodiment of the present application. Fig.14a In the embodiment, the second body 20 has a wider width, and the widths of the first body 10 and the third body 06 are both smaller than the second body 20. Fig.14a For the rest of the structure, please refer to Fig.12a The description is not repeated here.

[0152] Fig.14b for Fig.14a The folding device 001 is shown in the schematic diagram of the structure in the folded state. Fig.14b When the folding device 001 is in a folded state, the first body 10 and the second body 20 are stacked along the thickness direction of the folding device 001, the third body 06 and the second body 20 are stacked along the thickness direction of the folding device 001, and the first body 10 and the third body 06 are arranged side by side.

[0153] Fig.15a This is a structural diagram of a folding device 001 in a five-fold state provided in an embodiment of the present application. Fig.15a The folding device 001 includes a first body 10, a first rotating shaft 30, a second body 20, a second rotating shaft 03, a third body 06, a third rotating shaft 071, a fourth body 08, a fourth rotating shaft 072 and a fifth body 09 which are arranged in sequence.

[0154] The fourth body 08 and the third body 06 are connected via a third flexible interconnection component 061. The fourth body 08 and the fifth body 09 are connected via a fourth flexible interconnection component 062.

[0155] The third flexible interconnection component 061 and the fourth flexible interconnection component 062 refer to the description of the first flexible interconnection component 50. The fourth body 08 and the fifth body 09 refer to the description of the first body 10. The third rotating shaft 071 and the fourth rotating shaft 072 refer to the description of the first rotating shaft 30, which will not be repeated here.

[0156] Fig.15b This is a structural diagram of a folding device 001 in a folded state provided in an embodiment of the present application. Fig.15b When the folding device 001 is in a folded state, the first body 10, the second body 20, the third body 06, the fourth body 08 and the fifth body 09 are stacked.

[0157] It can be understood that in the embodiments of the present application, the folding device 001 can be a four-fold, six-fold or more folding device, and the embodiments of the present application are not limited to this.

[0158] In addition, in the embodiment of the present application, when the folding device 001 is adjusted from the unfolded state to the folded state, it is not limited to being realized by rotation. In some embodiments, it can be realized by sliding.

[0159] Fig.16a This is a structural diagram of another folding device 001 in an unfolded state provided in an embodiment of the present application. Fig.16a The folding device 001 includes a first body 002 and a second body 003, and the first body 002 and the second body 003 are slidably connected to enable the first body 002 and the second body 003 to be adjusted between an unfolded state and a folded state. Fig.16a In the embodiment, the first body 002 includes a first sub-area 021 and a second sub-area 022. The first sub-area 021 and the second body 003 are slidably connected.

[0160] When the folding device 001 is in the unfolded state, the first body 002 and the second body 003 are arranged side by side along the first direction a. It can be understood that the direction a can be parallel to the direction in which the first body 002 and the second body 003 slide relative to each other, and the direction a can also be non-parallel to the direction in which the first body 002 and the second body 003 slide relative to each other, and the embodiment of the present application does not limit this.

[0161] Exemplarily, the folding device 001 further includes a flexible interconnection assembly 004, which includes a first sub-section 041, a second sub-section 042 and a third sub-section 043 connected in sequence. The first sub-section 041 is connected to the first body 002, and the third sub-section 043 is connected to the second body 003.

[0162] Fig.16b for Fig.16a The folding device 001 is shown in the schematic diagram of the structure in the folded state. Fig.16b When the folding device 001 is in the folded state, the first body 002 and the second body 003 are stacked along the thickness direction (z direction) of the folding device 001. And the second body 003 covers the first sub-region 021 of the first body 002.

[0163] The aforementioned “the second body 003 covers the first sub-region 021 of the first body 002” includes: the second body 003 covers one side of the first sub-region 021, and the second body 003 and the first sub-region 021 are stacked. Alternatively, the second body 003 covers two opposite sides of the first sub-region 021, and the first sub-region 021 extends into the second body 003.

[0164] When the folding device 001 is in the folded state, the vertical projection of the second sub-portion 042 on the folding device 001 is located in the first sub-region 021, and the vertical projection of the second sub-portion 042 on the folding device 001 is not parallel to the first direction a.

[0165] Compared with the case where the vertical projection of the second sub-section 042 on the folding device 001 is parallel to the first direction a, the vertical projection of the second sub-section 042 on the folding device 001 is not parallel to the first direction a, which can reduce the bending radius of the second sub-section 042 when it is bent, and reduce the space required for the second sub-section 042 during the bending process. Reducing the space of the folding device 001 for storing the second sub-section 042 is beneficial to improving the integration of the folding device 001. In addition, the bending radius of the second sub-section 042 is reduced when it is bent, and during the folding process of the folding device 001, the bending arc of the second sub-section 042 is smaller, the movement margin of the second sub-section 042 is smaller, and the friction of the second sub-section 042 during the folding process is smaller, which is beneficial to improving the life of the folding device 001.

[0166] For example, in some embodiments, the angle between the vertical projection of the second sub-portion 042 on the folding device 001 and the first direction a is 10° to 80°. For example, the angle may be 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80° or 85°, etc. In this way, during the folding process of the folding device 001, the bending arc of the second sub-portion 042 is small, and the space required for the movement of the second sub-portion 042 is small, which can reduce the space occupied by the flexible interconnection assembly 004 and save the space of the folding device 001.

[0167] In the embodiment of the present application, the structure of the flexible interconnection component 004 can refer to the description of the aforementioned first flexible interconnection component 50. The connection method between the flexible interconnection component 004 and the first body 002 and the second body 003 can refer to the description of the aforementioned first flexible interconnection component 50 and the first body 10 and the second body 20, which will not be repeated here.

[0168] The flexible interconnection component of the folding device 001 provided in the embodiment of the present application has a small bending radius, occupies a small space, and has a small volume of the folding device 001. The flexible interconnection component moves a small distance, which can reduce the friction on other components of the folding device 001 during the movement process and increase the life of the folding device 001.

[0169] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A folding device, characterized in that: The folding device comprises: A first body, a first rotating shaft, and a second body; when the folding device is in a flattened state, the first body, the first rotating shaft, and the second body are arranged in sequence; A first flexible interconnection component, the first flexible interconnection component includes a first section, a second section and a third section connected in sequence, the first section is connected to the first body; the third section is connected to the second body; when the folding device is in a flattened state, the vertical projection of the second section on the folding device is located within the first rotating shaft; the vertical projection of the second section on the folding device is not perpendicular to the axis of the first rotating shaft.

2. The folding device according to claim 1, characterized in that: The included angle between the vertical projection of the second section on the folding device and the axis of the first rotating shaft is 10° to 80°.

3. The folding device according to claim 1 or 2, characterized in that: The folding device further includes: a first adhesive layer and a second adhesive layer; the first body is connected to the first section via the first adhesive layer; the second body is connected to the third section via the second adhesive layer; When the folding device is in a flattened state, a line between the first adhesive layer and the second adhesive layer is not perpendicular to the axis of the first rotating shaft.

4. The folding device according to claim 1 or 2, characterized in that: The folding device further includes: a first limiting member and a second limiting member, the first limiting member is connected to the first body and is surrounded by the first body to form a first channel, the first section is passed through the first channel; the second limiting member is connected to the second body and is surrounded by the second body to form a second channel, the third section is passed through the second channel; When the folding device is in a flattened state, a line between the first limiting member and the second limiting member is not perpendicular to the axis of the first rotating shaft.

5. The folding device according to claim 4, characterized in that: The first limiting member includes a first abutting portion, a pressure plate, and a second abutting portion which are connected in sequence, the first abutting portion and the second abutting portion are both connected to the first main body, and the first abutting portion and the second abutting portion abut against two sides of the first section respectively; the pressure plate, the first section, and the first main body are stacked.

6. The folding device according to claim 5, characterized in that: A surface of the pressing plate facing the first section abuts against the first section.

7. The folding device according to claim 5 or 6, characterized in that: The first channel is interference fit with the first section.

8. The folding device according to any one of claims 4 to 7, characterized in that: The first main body includes a middle frame, the middle frame is rotatably connected to the first rotating shaft, and the middle frame and the first limiting member are connected to form an integrally formed member.

9. The folding device according to any one of claims 1 to 8, characterized in that: The folding device also includes: a third body, a second flexible interconnection component and a second rotating shaft, the second body and the third body are both rotatably connected to the second rotating shaft, one end of the second flexible interconnection component is connected to the second body, and the other end is connected to the third body; when the folding device is in a flattened state, the first body, the first rotating shaft, the second body, the second rotating shaft and the third body are arranged in sequence.

10. The folding device according to any one of claims 1 to 9, characterized in that: The first flexible interconnection assembly includes a first board body and a first signal line buried in the first board body; the first signal line includes an electrical transmission medium.

11. The folding device according to any one of claims 1 to 9, characterized in that: The first flexible interconnection assembly includes a second board body and a second signal line buried in the second board body; the second signal line includes an optical transmission medium.

12. The folding device according to claim 11, characterized in that The first flexible interconnection assembly further includes a first optical transceiver and a second optical transceiver, the first optical transceiver is connected to the first body, and the second optical transceiver is connected to the second body; one end of the second signal line is connected to the first optical transceiver, and the other end is connected to the second optical transceiver; Wherein, when the folding device is in a flattened state, the distance between one end of the second signal line and the first optical transceiver is a first distance; when the folding device is in a folded state, the distance between one end of the second signal line and the first optical transceiver is a second distance; the second distance is greater than the first distance.

13. The folding device according to claim 12, characterized in that: The flexible interconnect assembly further comprises: a connecting element, through which the first optical transceiver is connected to the first body; Wherein, when the folding device is in a flattened state, the distance between one end of the connecting element and the first optical transceiver is a third distance; when the folding device is in a folded state, the distance between one end of the connecting element and the first optical transceiver is a fourth distance; and the fourth distance is greater than the third distance.

14. The folding device according to claim 12 or 13, characterized in that: The first flexible interconnection assembly further includes a coupling element, and one end of the second signal line is coupled to the first optical transceiver through the coupling element.

15. The folding device according to any one of claims 1 to 14, characterized in that: The folding device further includes: a display screen, and the first body and the second body are both connected to the backlight side of the display screen.

16. The folding device according to claim 9, characterized in that The folding device includes a plurality of the first flexible interconnection components, the first section of each of the first flexible interconnection components is connected to the first body; and the third section of each of the second flexible interconnection components is connected to the second body.

17. A folding device, characterized in that: The folding device comprises: a first body and a second body, the first body being slidably connected to the second body; when the folding device is in an unfolded state, the first body and the second body are arranged side by side along a first direction; when the folding device is in a folded state, the first body and the second body are stacked along a thickness direction of the folding device, and the second body covers a first sub-region of the first body; and A flexible interconnection component, the flexible interconnection component includes a first sub-section, a second sub-section and a third sub-section connected in sequence, the first sub-section is connected to the first body; the third sub-section is connected to the second body; when the folding device is in an unfolded state, the vertical projection of the second sub-section on the folding device is located within the first sub-area, and the vertical projection of the second sub-section on the folding device is not parallel to the first direction.

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