Folding device and intelligent terminal

Abstract

The utility model provides a folding device and an intelligent terminal, the folding device comprises a frame assembly, the frame assembly comprises a base and a middle frame, and the middle frame supports a flexible display screen; the rotating assembly comprises a connecting seat and a gear arm, the connecting seat is connected with the middle frame, the gear arm and the connecting seat are slidably arranged, and the gear arm is rotatably arranged relative to the base so as to drive the connecting seat and the middle frame to rotate relative to the base; the tensioning assembly rotates relative to the connecting seat; the gear arm slides towards the tensioning assembly and pushes the tensioning assembly to rotate towards the middle frame so that the tensioning assembly can abut against the middle frame. And / or, the gear arm slides back to the tensioning assembly, and the tensioning assembly is configured to rotate back to the middle frame, so that the tensioning assembly is separated from the middle frame. According to the technical scheme, creases formed by repeated folding of the flexible screen are reduced, and therefore the flatness and the visual effect of the flexible display screen are kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent terminals, in particular to a folding device and an intelligent terminal. BACKGROUND

[0002] With the continuous updating of electronic products, more and more electronic products enter people's life, enriching people's life style, whether at work or entertainment, electronic operation mode gradually replaces traditional manual operation.

[0003] In the process of conceiving and implementing the present application, the applicant found that at least the following problems exist: in some schemes, the rotating assembly drives the middle frame and the flexible screen to fold, and the flexible screen has obvious folding marks due to repeated folding, which results in poor user experience.

[0004] The foregoing narrative is to provide general background information and does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0005] In view of the above technical problems, the present application provides a folding device and an intelligent terminal, which reduces the folding marks of the flexible screen caused by repeated folding, thereby maintaining the flatness and visual effect of the flexible display screen.

[0006] To solve the above technical problems, the present application provides a folding device, comprising:

[0007] A frame assembly comprising a base and a middle frame, the middle frame supporting a flexible display screen;

[0008] A rotating assembly comprising a connecting seat and a gear arm, the connecting seat being connected to the middle frame, the gear arm being slidingly arranged with the connecting seat, and the gear arm being rotatably arranged relative to the base to drive the connecting seat and the middle frame to rotate relative to the base;

[0009] A tensioning assembly, the tensioning assembly being rotatable relative to the connecting seat;

[0010] The gear arm slides towards the tensioning assembly and pushes the tensioning assembly to rotate towards the middle frame, so that the tensioning assembly abuts against the middle frame; and / or, the gear arm slides away from the tensioning assembly, and the tensioning assembly is configured to rotate away from the middle frame, so that the tensioning assembly and the middle frame are separated.

[0011] Optionally, when the tensioning assembly rotates towards the middle frame, the edge of the tensioning assembly protrudes from the connecting seat to abut against the end wall of the middle frame; when the tensioning assembly rotates away from the middle frame, the tensioning assembly is withdrawn into the connecting seat to separate from the end wall of the middle frame.

[0012] Optionally, the connecting seat has a sliding groove, the sliding groove being arranged to extend along a first direction, and at least part of the gear arm moves in the sliding groove; when the gear arm slides towards the tensioning assembly and is pressed against the tensioning member, the tensioning assembly rotates out of the sliding groove and is pressed against the middle frame.

[0013] Optionally, when the gear arm slides away from the tensioning assembly, the tensioning assembly is disengaged from the extrusion of the gear arm, rotates into the sliding groove and is disengaged from the middle frame.

[0014] Optionally, the tensioning assembly comprises a tensioning piece and a rotating piece.

[0015] The tensioning piece is connected to the rotating piece, and the tensioning piece rotates relative to the connecting seat through the rotating piece.

[0016] Optionally, the tensioning assembly further comprises a first elastic piece, the first elastic piece is installed in the rotating piece and abuts between the tensioning piece and the rotating piece; when the gear arm slides away from the tensioning piece, the first elastic piece provides elastic force for the tensioning piece to disengage the tensioning piece from the middle frame.

[0017] Optionally, the tensioning assembly further comprises a mounting piece, the rotating piece has a mounting cavity; the rotating piece is provided with a mounting hole, the mounting hole is in communication with the mounting cavity, and the mounting piece covers the mounting hole to fix the first elastic piece in the mounting cavity.

[0018] Optionally, the first elastic piece comprises a torsion spring.

[0019] Optionally, the tensioning piece comprises a protruding block structure.

[0020] Optionally, the mounting piece comprises a mounting block.

[0021] Optionally, the tensioning piece and the rotating piece comprise an integrally formed structure.

[0022] Optionally, the gear arm comprises an avoiding cavity, and an opening of the avoiding cavity faces the rotating piece.

[0023] Optionally, when the gear arm slides towards the tensioning piece, the rotating piece is accommodated in the avoiding cavity.

[0024] Optionally, the middle frame comprises at least two middle frames, and the at least two middle frames are located on opposite sides of the base.

[0025] The frame assembly further comprises a first supporting plate and a second supporting plate, the second supporting plate is arranged on the base, and the first supporting plate is arranged on the middle frame to support the flexible display screen.

[0026] The application further provides a smart terminal, comprising a flexible display screen and the folding device.

[0027] The folding device and the intelligent terminal provided by the application are as follows: the intelligent terminal comprises a flexible display screen and the folding device; the folding device comprises a shell, the shell comprises a frame assembly, the frame assembly comprises a base and a middle frame, the middle frame supports the flexible display screen; a rotating assembly, the rotating assembly comprises a connecting seat and a gear arm, the connecting seat is connected with the middle frame, the gear arm is slidingly arranged with the connecting seat, the gear arm is rotationally arranged relative to the base to drive the connecting seat and the middle frame to rotate relative to the base; a tensioning assembly, the tensioning assembly is rotationally arranged relative to the connecting seat; the gear arm slides towards the tensioning assembly and pushes the tensioning assembly to rotate towards the middle frame so that the tensioning assembly is pressed against the middle frame; or, the gear arm slides away from the tensioning assembly, and the tensioning assembly is configured to rotate away from the middle frame so that the tensioning assembly and the middle frame are separated.

[0028] Through the above arrangement, that is, through the design of the rotating assembly and the frame assembly, the flexible display screen can be unfolded or folded, and through the matching design between the tensioning assembly, the flexible display screen can be tensioned when unfolded, thereby reducing the creases of the flexible screen caused by repeated folding, so as to maintain the flatness and visual effect of the flexible display screen; in addition, when the gear arm presses the middle frame, the middle frame provides resistance for the movement of the gear arm, thereby increasing the hovering force in the movement process. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate an embodiment consistent with the present application and, together with the specification, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the following embodiment description will be briefly introduced. Obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0030] Figure 1 is a partial structure schematic diagram of the folding device in the unfolded state in the embodiment of the application;

[0031] Figure 2 is a partial structure schematic diagram of the folding device in the unfolded state in the embodiment of the application without the first supporting plate;

[0032] Figure 3 is a sectional view of the assembly of the tensioning assembly, the rotating assembly and the middle frame in the unfolded state of the folding device in the embodiment of the application;

[0033] Figure 4 is a sectional view of the assembly of the tensioning assembly and the rotating assembly in the unfolded state of the folding device in the embodiment of the application;

[0034] Figure 5 is a structure schematic diagram of the first perspective in the folded state of the folding device in the embodiment of the application;

[0035] Figure 6 Figure 8 is a structural schematic diagram of a second view of the folding device in a folded state according to an embodiment of the present application;

[0036] Figure 7 Figure 9 is a structural schematic diagram of a first view of the folding device in a half-folded state according to an embodiment of the present application;

[0037] Figure 8 Figure 10 is a structural schematic diagram of a second view of the folding device in a half-folded state according to an embodiment of the present application;

[0038] Figure 9 Figure 11 is a structural schematic diagram of a tensioning assembly in the folding device according to an embodiment of the present application;

[0039] Figure 10 Figure 12 is an exploded schematic diagram of the tensioning assembly in the folding device according to an embodiment of the present application;

[0040] Figure 11 Figure 13 is a hardware structural schematic diagram of an intelligent terminal for implementing various embodiments of the present application.

[0041] Label Explanation:

[0042] 100 - folding device; 110 - frame assembly; 111 - middle frame; 112 - base; 113 - first supporting plate; 120 - rotating assembly; 121 - connecting seat; 1211 - sliding groove; 122 - gear arm; 1221 - avoiding cavity; 123 - swing arm; 130 - tensioning assembly; 131 - first elastic member; 132 - tensioning member; 133 - rotating member; 1331 - mounting hole; 134 - mounting member; 140 - cam; 141 - first abutting surface; 142 - second abutting surface; 150 - second elastic member; 170 - supporting seat;

[0043] 200 - intelligent terminal; 201 - radio frequency unit; 202 - WiFi module; 203 - audio output unit; 204 - A / V input unit; 2041 - graphic processor; 2042 - microphone; 205 - sensor; 206 - display unit; 2061 - display panel; 207 - user input unit; 2071 - touch panel; 2072 - other input device; 208 - interface unit; 209 - memory; 210 - processor; 211 - power supply.

[0044] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. The above-described drawings have shown the specific embodiments of the present application, and more detailed descriptions will be given hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0045] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, like reference numerals refer to like elements, unless the context clearly dictates otherwise. The following description is not intended to represent all embodiments in accordance with the present application. Rather, they merely represent typical embodiments in accordance with a portion of the application, as detailed in the appended claims.

[0046] Alternatively, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or "includes a", does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. The terms "first", "second", and the like, do not denote any order, quantity, combination, or importance, but rather are used to identify one element from another, and the "and / or" includes combinations thereof.

[0047] It should be understood that the terms "inner", "outer", and the like, indicating the direction or positional relationship in the description of the present application, are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or member must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0048] In addition, the terms "connected", "connected" in the description of the present application are broad in the sense that, for example, they can be fixedly connected, or detachably connected, or integrally connected; they can be mechanically connected, or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be connected internally between two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In addition, the terms "first", "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0050] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0051] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the application.

[0052] In some schemes, the rotating assembly drives the middle frame and the flexible screen to bend to form a water drop state, and the flexible screen has obvious creases due to multiple folding, which results in poor user experience.

[0053] Therefore, the folding device and the intelligent terminal provided by the present application can realize the unfolding or folding of the flexible display screen through the design of the rotating assembly and the frame assembly. Through the matching design between the tension assembly, the flexible display screen can be tensioned when unfolded, thereby reducing the creases formed by repeated folding of the flexible screen, so as to maintain the flatness and visual effect of the flexible display screen. In addition, since the gear arm provides resistance to the movement of the middle frame when extruding the middle frame, the hovering force in the movement process is increased.

[0054] In order to facilitate understanding, the application scenarios applicable to the embodiments of the present application will be described first.

[0055] The folding device provided by the present application can be applied to an intelligent terminal, and the intelligent terminal can be various forms of intelligent terminals. For example, the intelligent terminal described in the present application can include intelligent terminals such as mobile phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and the like, as well as fixed terminals such as digital TVs, desktop computers, and the like.

[0056] In the subsequent description, the intelligent terminal will be taken as an example for description, and those skilled in the art will understand that the structure according to the embodiments of the present application can also be applied to fixed type terminals, except for elements specifically used for mobile purposes.

[0057] Based on the above intelligent terminal and the structure of the folding device in the intelligent terminal, various embodiments of the present application are proposed.

[0058] First embodiment

[0059] Figure 1 is a partial structure schematic diagram of the folding device in the unfolded state in the embodiment of the application, Figure 2 is a partial structure schematic diagram of the folding device in the unfolded state in the embodiment of the application, and the first supporting plate is removed, Figure 3 is a sectional view of the assembly of the tensioning assembly, the rotating assembly and the middle frame in the unfolded state of the folding device in the embodiment of the application, Figure 4 is a sectional view of the assembly of the tensioning assembly and the rotating assembly in the unfolded state of the folding device in the embodiment of the application.

[0060] As shown in Figures 1 to 4 , the embodiment of the application provides a folding device 100, which comprises:

[0061] a frame assembly 110 comprising a middle frame 111 and a base 112, the middle frame 111 supporting a flexible display screen;

[0062] a rotating assembly 120 comprising a connecting seat 121 and a gear arm 122, the connecting seat 121 being connected with the middle frame 111, the gear arm 122 being slidingly arranged with the connecting seat 121, and the gear arm 122 being rotationally arranged relative to the base 112 to drive the connecting seat 121 and the middle frame 111 to rotate relative to the base 112;

[0063] a tensioning assembly 130, the tensioning assembly 130 being rotationally arranged relative to the connecting seat 121;

[0064] the gear arm 122 slides towards the tensioning assembly 130 and drives the tensioning assembly 130 to rotate towards the middle frame 111 so that the tensioning assembly 130 is pressed against the middle frame 111; or the gear arm 122 slides away from the tensioning assembly 130, and the tensioning assembly 130 is configured to rotate away from the middle frame 111 so that the tensioning assembly 130 and the middle frame 111 are separated.

[0065] Through the above arrangement, i.e. through the design of the rotating assembly 120 and the frame assembly 110, the unfolding or folding of the flexible display screen can be realized, and through the matching design between the tensioning assembly 130, the flexible display screen can be tensioned when unfolded, thereby reducing the creases of the flexible screen caused by repeated folding, so as to maintain the flatness and visual effect of the flexible display screen. In addition, when the gear arm 122 presses the middle frame 111, the middle frame 111 provides resistance to the movement of the gear arm 122, thereby increasing the hovering force in the movement process.

[0066] Figure 5 is a structure schematic diagram of the first perspective in the folded state of the folding device in the embodiment of the application, Figure 6 is a structure schematic diagram of the second perspective in the folded state of the folding device in the embodiment of the application, Figure 7FIG. 1 is a structural schematic diagram of a first perspective view of a folding device in a half-folded state according to an embodiment of the present application. Figure 8 FIG. 2 is a structural schematic diagram of a second perspective view of the folding device in the half-folded state according to the embodiment of the present application.

[0067] As shown in Figures 1 to 8 The frame assembly 110 is configured to carry the flexible display screen, which can be bent under an external force.

[0068] Optionally, the frame assembly 110 can be unfolded to an unfolded state (also referred to as an expanded state), folded to a closed state (also referred to as a folded state), or in an intermediate state between the unfolded state and the closed state, i.e., a half-folded state. There are a plurality of continuous intermediate states between the unfolded state and the closed state, and the flexible display screen is unfolded and folded with the frame assembly 110.

[0069] Optionally, the flexible display screen can be bonded to the middle frame 111 by a glue layer. Optionally, the flexible display screen can be an outer folding screen or an inner folding screen, and the embodiments of the present application are not limited thereto.

[0070] Optionally, for ease of illustration, in the embodiments of the present application, the flexible display screen carried by the middle frame 111 can be an inner folding screen, which is folded inward during the opening and closing of the middle frame 111. Optionally, the flexible display screen can be an outer folding screen or an inner folding screen, and the embodiments of the present application are not limited thereto.

[0071] The structural design of the middle frame 111 in the embodiment matches the structure of the flexible display screen, so that the flexible display screen can avoid bulging when switching between the unfolded state and the closed state, thereby improving the display effect.

[0072] In some examples, the middle frame 111 can be a metal piece, and the material thereof can include one or more of copper, iron, aluminum, tin, and lead.

[0073] In other examples, the middle frame 111 can also be a plastic material. When injection molding, the molten plastic is injected into a plastic product mold under pressure, and then cooled and formed into the required plastic piece. The material of the middle frame 111 can be the same as or different from the material of the middle frame 111, and the embodiments of the present application are not limited thereto. The embodiments of the present application are not limited thereto.

[0074] Of course, for ease of illustration, in the embodiments of the present application, the flexible display screen carried by the frame assembly 110 can be an inner folding screen, which is folded inward during the opening and closing of the frame assembly 110.

[0075] In some embodiments, the flexible display screen is configured to display an image.

[0076] Optionally, the flexible display screen can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, or a quantum dot light-emitting diode (QLED) display screen.

[0077] Optionally, the frame assembly 110 can be unfolded to a flattened state (also known as the unfolded state) or folded to a closed state (also known as the folded state) under the drive of the rotating assembly 120. When in different states, the gear arm 122 is slidably disposed relative to the connecting seat 121, that is, there is a variable distance between it and the middle frame 111.

[0078] When the frame assembly 110 is in the unfolded state, the distance between the gear arm 122 and the middle frame 111 gradually decreases, and when the frame assembly 110 is in the folded state, the distance between the gear arm 122 and the middle frame 111 gradually increases.

[0079] Optionally, such as Figures 1 to 4 As shown, the frame assembly 110 has an unfolded state. During the process of gradually unfolding the frame assembly 110 from the folded state, the middle frame 111 gradually increases the angle between itself and the base 112 as the gear arm 122 rotates, so as to support the flexible display screen after the flexible display screen is flattened. The flexible display screen is in a flattened state and can display the entire screen, so that the smart terminal has a larger display area to improve the user's viewing experience.

[0080] Optionally, such as Figures 5 to 8 As shown, the frame assembly 110 has a folded state. During the process of gradually folding the frame assembly 110 from the unfolded state, the middle frame 111 gradually reduces the angle between itself and the base 112 as the gear arm 122 rotates, so that the flexible display screen can be folded and hidden, making it convenient for users to carry.

[0081] In some embodiments, the rotating assembly 120 further includes a rocker arm 123, which drives the connecting seat 121 and the gear arm 122 to rotate when rotating.

[0082] Optionally, the tensioning assembly 130 is arranged to press against the middle frame 111 to tension the flexible display screen on the middle frame 111, thereby reducing the creases of the flexible display screen.

[0083] Optionally, the frame assembly 110 has a switchable folded state and unfolded state; when the frame assembly 110 is switched from the folded state to the unfolded state, the gear arm 122 slides towards the tensioning assembly 130 to provide a pushing force for the tensioning assembly 130 to rotate towards the middle frame 111, protruding from the edge of the connecting seat 121 to press against the end wall of the middle frame 111; when the frame assembly 110 is switched from the unfolded state to the folded state, the gear arm 122 slides away from the tensioning assembly 130, and the tensioning assembly 130 is out of the pushing force provided by the gear arm 122, rotates away from the middle frame 111, and is withdrawn into the edge of the connecting seat 121 to be separated from the end wall of the middle frame 111.

[0084] As shown in Figures 1 to 8 Optionally, when the tensioning assembly 130 rotates towards the middle frame 111, it protrudes from the edge of the connecting seat 121 to press against the end wall of the middle frame 111; when the tensioning assembly 130 rotates away from the middle frame 111, it is withdrawn into the connecting seat 121 to be separated from the end wall of the middle frame 111.

[0085] Optionally, when the frame assembly 110 is switched from the folded state to the unfolded state, the gear arm 122 rotates while sliding on the connecting seat 121, gradually approaching the tensioning assembly 130 until contacting the tensioning assembly 130 and pushing the tensioning assembly 130 to rotate in the direction of the middle frame 111, i.e., counterclockwise, and the tensioning assembly 130 protrudes from the edge of the connecting seat 121 to press against the end wall of the middle frame 111 to provide an outward pushing force for the middle frame 111, thereby tensioning the flexible display screen to reduce the creases formed by repeated folding.

[0086] Optionally, when the frame assembly 110 is switched from the unfolded state to the folded state, the gear arm 122 rotates while sliding on the connecting seat 121, gradually moving away from the tensioning assembly 130, and the tensioning assembly 130 is out of the pressing of the gear arm 122 and rotates in the direction away from the middle frame 111, i.e., clockwise, and the tensioning assembly 130 is gradually withdrawn into the connecting seat 121 to avoid folding.

[0087] Optionally, the connecting seat 121 has a sliding groove 1211 extending along the first direction, and the gear arm 122 moves in the sliding groove 1211; optionally, when the gear arm 122 slides towards the tensioning member 132 and presses against the tensioning assembly 130, the tensioning assembly 130 rotates out of the sliding groove 1211 and is directed to press against the middle frame 111; optionally, when the gear arm 122 slides away from the tensioning assembly 130, the tensioning assembly 130 is released from the pressing of the gear arm 122, rotates into the sliding groove 1211, and is released from the middle frame 111.

[0088] Optionally, the tensioning assembly 130 includes the tensioning member 132. Optionally, the sliding groove 1211 is designed to facilitate the movement of the gear arm 122 in the sliding groove 1211, thereby satisfying the movement of the gear arm 122 relative to the connecting seat 121; optionally, the tensioning member 132 can be hidden in the sliding groove 1211 to improve the compactness of the overall structure.

[0089] Optionally, by the movement of the gear arm 122 in the sliding groove 1211, the state of the tensioning member 132 can be accurately controlled. When the gear arm 122 slides towards the tensioning member 132 and presses, the tensioning member 132 rotates and presses on the middle frame 111, enhancing the stability and reliability of the system.

[0090] As shown in Figure 5 , the first direction X is the width direction of the connecting seat 121 to satisfy the sliding of the gear arm 122 along the first direction on the connecting seat 121.

[0091] Figure 9 FIG. 2 is a structural schematic diagram of a tensioning assembly in a folding device in an embodiment of the present application, Figure 10 FIG. 3 is an exploded schematic diagram of a tensioning assembly in a folding device in an embodiment of the present application.

[0092] Optionally, as shown in Figures 1 to 10 , the tensioning assembly 130 further includes a rotating member 133; the tensioning member 132 is connected to the rotating member 133, and the tensioning member 132 rotates relative to the connecting seat 121 through the rotating member 133.

[0093] Optionally, by introducing the rotating member 133, the rotating member 133 provides an accurate rotation axis, making the movement of the tensioning member 132 smoother, reducing wear caused by friction and unnecessary stress, thereby prolonging the service life of the assembly; reducing the risk of accidental loosening or failure, and improving the reliability of the overall system.

[0094] In some embodiments, the tensioning member 132 and the rotating member 133 can be connected in a detachable or fixed connection manner. For example, a bolt, a buckle, or a hanging connection can be used, and the embodiments of the present application are not limited too much here.

[0095] As shown inFigures 1 to 10 As shown, optionally, the tensioning assembly 130 further includes a first elastic element 131, which is installed inside the rotating member 133 and abuts against the tensioning member 132 and the rotating member 133; optionally, when the gear arm 122 slides away from the tensioning member 132, the first elastic element 131 provides elastic force to the tensioning member 132 so that the tensioning member 132 and the middle frame 111 are disengaged.

[0096] Optionally, the first elastic element 131 is positioned in the tensioning assembly 130 so that the tensioning element 132 can be returned to its original position, thereby improving the smoothness of the entire structure throughout the process.

[0097] Optionally, when the frame assembly 110 switches from the folded state to the unfolded state, the gear arm 122 slides toward the tensioner 132 to provide thrust to the tensioner 132. During the continued unfolding process, the tensioner 132 squeezes the middle frame 111 and compresses the first elastic member 131. When rotated to the unfolded state, the compression of the first elastic member 131 is at its maximum.

[0098] Optionally, when the frame assembly 110 switches from the unfolded state to the folded state, the gear arm 122 slides away from the tensioner 132, and the tensioner 132 is released from the thrust provided by the gear arm 122. At this time, the first elastic member 131 provides elastic force to the tensioner 132. That is, under the elastic force of the first elastic member 131, the tensioner 132 rotates into the slide groove 1211.

[0099] Optionally, when the gear arm 122 slides away from the tensioner 132, the elastic force provided by the first elastic member 131 can automatically release the tensioner 132 from the middle frame 111. The use of the first elastic member 131 ensures that the movement of the tensioner 132 is smooth and gradual, avoiding sudden movement or impact, thereby reducing wear and potential damage to the components. Optionally, the continuous elastic force provided by the first elastic member 131 ensures that the tensioner 132 remains stable during disengagement and engagement, reducing accidental loosening due to vibration or external forces.

[0100] like Figures 1 to 10 As shown, optionally, the tensioning assembly 130 further includes a mounting member 134, and the rotating member 133 has a mounting cavity; the rotating member 133 has a mounting hole 1331, which communicates with the mounting cavity, and the mounting member 134 covers the mounting hole 1331 to fix the first elastic member 131 in the mounting cavity.

[0101] Optionally, the mounting component 134 ensures that the first elastic element 131 is securely fixed in the mounting cavity of the rotating element 133, preventing it from shifting or falling off during operation, thereby improving the reliability of the system.

[0102] Optionally, by designing the installation cavity and the installation hole 1331, the installation and fixation of the first elastic member 131 become more convenient, reducing the assembly time and complexity. At the same time, the elastic member can be replaced more easily during maintenance.

[0103] In some embodiments, the installation member 134 covers the installation hole 1331, providing physical protection for the first elastic member 131, preventing the influence of external environmental factors (such as dust, moisture, etc.) on the elastic member, thereby prolonging its service life.

[0104] Optionally, the first elastic member 131 is a torsion spring. Optionally, the torsion spring can provide a stable torsional moment, which is particularly effective for tensioning members 132 that require rotational motion. It can generate enough force in a limited space to achieve the tensioning or releasing function. The torsion spring usually has a compact structure, suitable for use in limited space. This makes the entire tensioning assembly 130 can be designed more compact and lightweight, suitable for small devices or space-limited applications.

[0105] Optionally, the tensioning member 132 is a protrusion structure. Optionally, the protrusion structure can provide concentrated and effective force transmission on the contact surface. This structure design can ensure that the tensioning member 132 can directly and effectively transmit force to the target assembly (such as the middle frame 111) during the tensioning or releasing process.

[0106] Optionally, the installation member 134 is a mounting block. Optionally, the mounting block provides a solid foundation for fixing other components (such as the torsion spring). This stability ensures that the components do not shift or loosen during operation, improving the overall reliability of the system.

[0107] Optionally, the tensioning member 132 and the rotating member 133 are integrally formed. Optionally, by setting the tensioning member 132 and the rotating member 133 as integrally formed, not only can the connection strength between the tensioning member 132 and the rotating member 133 be improved, but also the seamless connection of the tensioning member 132 and the rotating member 133 can be achieved, thereby reducing the risk of cracking at the connection position of the tensioning member 132 and the rotating member 133.

[0108] Optionally, the gear arm 122 has an avoidance cavity 1221, and the opening of the avoidance cavity 1221 faces the rotating member 133; when the gear arm 122 slides towards the tensioning member 132, the rotating member 133 is accommodated in the avoidance cavity 1221.

[0109] Optionally, by providing an avoidance cavity 1221 for the rotating member 133, mechanical interference that may occur during the sliding process of the gear arm 122 is avoided. This ensures that the components can operate smoothly, reducing the risk of jamming or wear.

[0110] Optionally, the design of the avoidance cavity 1221 allows the rotating member 133 to have a dedicated space for accommodation when the gear arm 122 slides, thereby optimizing the space utilization between components. The avoidance cavity 1221 allows the rotating member 133 to move freely when the gear arm 122 slides, providing a smoother motion path. This smoothness helps to reduce friction and noise during operation, improving the performance and user experience of the system.

[0111] Optionally, as shown in Figure 2 and Figure 6 , the folding device 100 further comprises a cam 140, a second elastic member 150, and a support seat 170 to meet the hovering process of the motion.

[0112] Optionally, the second elastic member 150 is installed between the cam 140 and the support seat 170, and the support seat 170 is arranged on the base 112; the cam 140 has a first abutting surface 141 and a second abutting surface 142, and the distance between the first abutting surface 141 and the end surface of the second elastic member 150 is greater than the distance between the second abutting surface 142 and the end surface of the second elastic member 150.

[0113] Optionally, as shown in Figures 1 to 4 , when the frame assembly 110 is switched from the folded state to the unfolded state, the gear arm 122 slides towards the tensioning member 132, and the gear arm 122 abuts against the first abutting surface 141 to make the cam 140 move in the second direction Y.

[0114] Optionally, as shown in Figure 5 and Figure 6 , when the frame assembly 110 is switched from the unfolded state to the folded state, the gear arm 122 slides away from the tensioning member 132, and the gear arm 122 abuts against the second abutting surface 142 to make the cam 140 move in the third direction Z, and optionally, the second direction and the third direction are opposite.

[0115] Optionally, the second elastic member 150 can be a compression spring, which can provide a stable axial force when compressed, which is very effective for the application of linear motion of the cam 140 in the second direction or the third direction.

[0116] Optionally, the middle frame 111 is at least two, and the at least two middle frames 111 are located on opposite sides of the base 112; the frame assembly 110 further comprises a first supporting plate 113 and a second supporting plate, and the second supporting plate is arranged on the base 112, and the first supporting plate 113 is arranged on the middle frame 111 to carry the flexible display screen. Optionally, the two first supporting plates 113 can be rotated relative to the second supporting plate to form an angle with the second supporting plate, or to be flat with the second supporting plate.

[0117] Optionally, the first supporting plate 113 is used to carry the flexible display screen. Optionally, the two first supporting plates 113 on both sides are at an angle of substantially 180° (a small deviation is also allowed, for example, 166°, 178° or 184°) when the second supporting plate is in the unfolded state. The two first supporting plates 113 on both sides can be relatively rotated (unfolded or folded) to the intermediate state, so that the smart terminal is in the intermediate state. Optionally, the two first supporting plates 113 on both sides can be relatively folded to the closed state, so that the smart terminal is in the closed state.

[0118] Optionally, the frame assembly 110 can be in any state between the unfolded state and the closed state. Therefore, the smart terminal can be switched between the unfolded state and the closed state through the deformation of the frame assembly 110.

[0119] Optionally, the first supporting plate 113 is used to carry the flexible display screen. Optionally, the two first supporting plates 113 on both sides are at an angle of substantially 180° (a small deviation is also allowed, for example, 166°, 178° or 184°) when the second supporting plate is in the unfolded state. The two first supporting plates 113 on both sides can be relatively rotated (unfolded or folded) to the intermediate state, so that the smart terminal is in the intermediate state. Optionally, the two first supporting plates 113 on both sides can be relatively folded to the closed state, so that the smart terminal is in the closed state.

[0120] The folding device provided by the embodiment of the present application comprises a shell, the shell comprises a frame assembly, including a base and a middle frame, the middle frame supports a flexible display screen; a rotating assembly, including a connecting seat and a gear arm, the connecting seat is connected with the middle frame, the gear arm is slidingly arranged with the connecting seat, the gear arm is rotationally arranged relative to the base to drive the connecting seat and the middle frame to rotate relative to the base; a tensioning assembly, including a tensioning piece, the tensioning piece is rotationally arranged relative to the connecting seat; the gear arm slides towards the tensioning piece and pushes the tensioning piece to rotate towards the middle frame, so that the tensioning piece is pressed against the middle frame; or, the gear arm slides away from the tensioning piece, and the tensioning piece is configured to rotate away from the middle frame, so that the tensioning piece and the middle frame are separated.

[0121] Through the design of the rotating assembly and the frame assembly, the unfolding or folding of the flexible display screen can be realized. Through the matching design between the tensioning piece and the flexible display screen, the flexible display screen can be tensioned when unfolded, thereby reducing the creases of the flexible screen caused by repeated folding, so as to maintain the flatness and visual effect of the flexible display screen. In addition, when the gear arm presses the middle frame, the middle frame provides resistance for the movement of the gear arm, thereby increasing the hovering force in the movement process.

[0122] Second embodiment

[0123] The smart terminal provided by the embodiment of the present application comprises a flexible display screen and the folding device 100 described above.

[0124] It should be noted that the flexible display screen can be, but is not limited to, a flexible touch screen, a flexible touch display screen, and various flexible components with corresponding functions.

[0125] It should be noted that the intelligent terminal provided by the embodiments of the present application can be implemented in various forms. For example, the intelligent terminal described in the present application can include intelligent terminals such as mobile phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs and desktop computers.

[0126] In some embodiments, the intelligent terminal can also include a plurality of modules (not shown in the figure), and the plurality of modules of the intelligent terminal can include, but are not limited to, a mainboard, a processor, a memory, a battery, a camera module, an earpiece module, a speaker module, a microphone module, an antenna module, a sensor module, and the like. The embodiments of the present application do not specifically limit the number, type, and position of the modules of the intelligent terminal.

[0127] The intelligent terminal provided by the embodiments of the present application can realize the unfolding or folding of the flexible display screen through the design of the rotating assembly and the frame assembly. Through the matching design between the flexible display screen and the tensioning member, the flexible display screen can be tensioned when unfolded, thereby reducing the creases formed by repeated folding of the flexible screen, and maintaining the flatness and visual effect of the flexible display screen. In addition, when the gear arm extrudes the middle frame, the middle frame provides resistance to the movement of the gear arm, thereby increasing the hovering force in the movement process.

[0128] Optionally, the intelligent terminal in the present application will be described in the subsequent description taking the intelligent terminal as an example. Those skilled in the art will understand that, in addition to elements specifically used for mobile purposes, the configuration according to the embodiments of the present application can also be applied to terminals of a fixed type.

[0129] Figure 11 is a schematic diagram of the hardware structure of an intelligent terminal for implementing various embodiments of the present application. Please refer to Figure 11 The intelligent terminal 200 can include an RF (Radio Frequency, radio frequency) unit 201, a WiFi module 202, an audio output unit 203, an A / V (Audio / Video, audio / video) input unit 204, a sensor 205, a display unit 206, a user input unit 207, an interface unit 208, a memory 209, a processor 210, and a power supply 211, and the like. Those skilled in the art can understand that Figure 11The structure of the intelligent terminal shown in the figure is not a limitation of the intelligent terminal, and the intelligent terminal can include more or fewer components than the figure, or combine certain components, or different component arrangements.

[0130] The following will be described in detail Figure 11 The specific introduction of each component of the intelligent terminal is as follows:

[0131] The radio frequency unit 201 can be used for receiving and sending signals in the process of information or communication. Specifically, after receiving the downlink information of the base station, the processor 210 processes it. In addition, the uplink data is sent to the base station. Usually, the radio frequency unit 201 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. In addition, the radio frequency unit 201 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G and 6G, etc.

[0132] WiFi belongs to short-range wireless transmission technology, and the intelligent terminal can help users send and receive emails, browse web pages and access streaming media through the WiFi module 202, which provides users with wireless broadband Internet access. Although Figure 11 The WiFi module 202 is shown, but it is understood that it does not belong to the essential structure of the intelligent terminal, and can be omitted without changing the essence of the utility model within the scope of need.

[0133] The audio output unit 203 can convert audio data, which is received by the radio frequency unit 201 or the WiFi module 202 or stored in the memory 209, into an audio signal and output the audio signal as sound when the smart terminal 200 is in a call signal reception mode, a speech mode, a recording mode, a voice recognition mode, a broadcast reception mode, and the like. Also, the audio output unit 203 can provide an audio output relating to a particular function performed by the smart terminal 200 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 203 can include a speaker, a buzzer, and the like.

[0134] The A / V input unit 204 receives audio or video signals. The A / V input unit 204 can include a graphic processing unit (GPU) 2041 and a microphone 2042. The graphic processing unit 2041 processes image data of a still picture or a video obtained by an image capture device (e.g., a camera) in a video call mode or an image call mode. Processed image frames can be displayed on the display unit 206. The image frames processed by the graphic processing unit 2041 can be stored in the memory 209 (or other storage medium) or transmitted via the radio frequency unit 201 or the WiFi module 202. The microphone 2042 receives a sound (audio data) via the microphone 2042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such a sound into audio data. Processed audio (voice) data can be converted into a format transmittable to a mobile communication base station via the radio frequency unit 201 in the case of the phone call mode. The microphone 2042 can implement various types of noise removal (or suppression) algorithms to remove (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.

[0135] The smart terminal 200 further includes at least one sensor 205, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 2061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 2061 and / or the backlight when the smart terminal 200 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), and can detect the magnitude and direction of gravity when at rest. The accelerometer sensor can be used for applications of recognizing the posture of the smart terminal 200 (e.g., switching between a landscape mode and a portrait mode, a relevant game, a magnetometer posture calibration), a vibration recognition-related function (e.g., a pedometer, a knock), and the like. The smart terminal 200 can further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecule sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and other sensors, which are not described herein.

[0136] The display unit 206 is configured to display information input by a user or information provided to the user. The display unit 206 can include a display panel 2061, which can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0137] The user input unit 207 can be configured to receive inputted digital or character information, and to generate key signal inputs related to user settings and function controls of the intelligent terminal. Optionally, the user input unit 207 can include a touch panel 2071 and other input devices 2072. The touch panel 2071, also referred to as a touch screen, can collect touch operations of a user thereon or adjacent thereto (such as operations of the user using a finger, a stylus, or any suitable object or accessory on or adjacent to the touch panel 2071), and drive corresponding connection devices according to a pre-set program. The touch panel 2071 can include two parts, a touch detection device and a touch controller. The touch detection device detects a touch position of a user and detects signals caused by a touch operation, and transmits the signals to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch coordinates, and sends the touch coordinates to the processor 210, and can receive commands from the processor 210 and execute the commands. In addition, the touch panel 2071 can be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave type. In addition to the touch panel 2071, the user input unit 207 can further include other input devices 2072. Optionally, the other input devices 2072 can include one or more of, but are not limited to, a physical keyboard, function keys (such as volume control keys, on / off keys, etc.), a trackball, a mouse, a joystick, and the like, without being limited in particular.

[0138] Optionally, the touch panel 2071 can cover the display panel 2061, and when the touch panel 2071 detects a touch operation thereon or adjacent thereto, transmits the touch operation to the processor 210 to determine a type of the touch event, and then the processor 210 provides corresponding visual output on the display panel 2061 according to the type of the touch event. Although in the above embodiment, the touch panel 2071 and the display panel 2061 are implemented as two independent components to realize the input and output functions of the intelligent terminal, in some embodiments, the touch panel 2071 and the display panel 2061 can be integrated to realize the input and output functions of the intelligent terminal, without being limited in particular. Figure 11

[0139] ​The interface unit 208 serves as an interface through which at least one external device can be connected to the intelligent terminal 200. For example, the external device can include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input / output (I / O) port, a video I / O port, an earphone port, and the like. The interface unit 208 can be used to receive input (e.g., data information, power, and the like) from an external device and transfer the received input to one or more elements within the intelligent terminal 200 or can be used to transfer data between the intelligent terminal 200 and an external device.

[0140] The memory 209 can be used to store software programs as well as various data. The memory 209 can include a program storage area and a data storage area, and the program storage area can store, for example, an operating system, application programs (e.g., a sound play function, an image play function, and the like) required for at least one function, and the like, and the data storage area can store, for example, data created according to the use of the mobile phone (e.g., audio data, a phonebook, and the like), and the like. In addition, the memory 209 can include a high-speed random access memory, and can further include a nonvolatile memory such as at least one of a magnetic disk storage device, a flash memory device, or other volatile solid state memory device.

[0141] The processor 210 is a control center of the intelligent terminal, which connects all parts of the intelligent terminal using various interfaces and lines, performs various functions of the intelligent terminal and processes data by running or executing software programs and / or modules stored in the memory 209 and calling data stored in the memory 209, and thus performs overall monitoring of the intelligent terminal. The processor 210 can include one or more processing units, and preferably, the processor 210 can integrate an application processor and a modem processor, and the modem processor can be used to mainly process wireless communication, and the application processor can be used to mainly process an operating system, a user interface, and an application program, and the like. It will be understood that the above-described modem processor can not be integrated into the processor 210.

[0142] The intelligent terminal 200 can further include a power supply 211 (e.g., a battery) for supplying power to each component, and preferably, the power supply 211 can be logically connected to the processor 210 through a power management system, and thus the power management system can perform functions of managing charging, discharging, and power consumption management.

[0143] Although Figure 11 The intelligent terminal 200 can further include a Bluetooth module, and the like, which are not shown.

[0144] It can be understood that the above scenarios are only as examples and do not constitute a limitation on the application scenarios of the technical solutions provided by the embodiments of the present application. The technical solutions provided by the present application can also be applied to other scenarios. For example, those skilled in the art can know that, as the system architecture evolves and new business scenarios emerge, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0145] The above sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0146] The units in the device of the embodiments of the present application can be combined, divided and deleted according to actual needs.

[0147] In the present application, for the same or similar term concept, technical solution and / or application scenario description, generally only the first time is described in detail, and for the sake of brevity, the repeated description is not repeated. When understanding the technical solutions of the present application, the same or similar term concept, technical solution and / or application scenario description which is not described in detail can be referred to the relevant description before.

[0148] In the present application, the description of each embodiment has its own emphasis, and the part not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.

[0149] The technical features of the technical solutions of the present application can be combined arbitrarily. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of these technical features does not exist contradictory, it should be considered as the scope of the present application.

[0150] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A folding device (100), characterized in that, The application relates to a frame assembly (110) comprising a base (112) and a middle frame (111) supporting a flexible display screen; a rotating assembly (120) comprising a connecting seat (121) connected to the middle frame (111) and a gear arm (122) slidingly arranged in the connecting seat (121) and rotatably arranged relative to the base (112); and a tensioning assembly (130) rotatable relative to the connecting seat (121). The gear arm (122) slides towards the tensioning assembly (130) and pushes the tensioning assembly (130) to rotate towards the middle frame (111) so that the tensioning assembly (130) is pressed against the middle frame (111); and / or the gear arm (122) slides away from the tensioning assembly (130), and the tensioning assembly (130) is configured to rotate away from the middle frame (111) so that the tensioning assembly (130) is separated from the middle frame (111). When the tensioning assembly (130) rotates towards the middle frame (111), the edge of the tensioning assembly (130) protrudes from the connecting seat (121) to press against the end wall of the middle frame (111); and / or when the tensioning assembly (130) rotates away from the middle frame (111), the tensioning assembly (130) is retracted into the connecting seat (121) to be separated from the end wall of the middle frame (111). The connecting seat (121) comprises a sliding groove (1211) extending in a first direction, and at least part of the gear arm (122) moves in the sliding groove (1211). When the gear arm (122) slides towards the tensioning assembly (130) and is pressed against the tensioning assembly (130), the tensioning assembly (130) rotates out of the sliding groove (1211) and is pressed against the middle frame (111); and / or when the gear arm (122) slides away from the tensioning assembly (130), the tensioning assembly (130) is separated from the pressing of the gear arm (122), rotates into the sliding groove (1211) and is separated from the middle frame (111). The tensioning assembly (130) comprises a tensioning member (132) and a rotating member (133).

2. The folding device (100) according to claim 1, characterized in that The tensioning member (132) is connected to the rotating member (133), and the tensioning member (132) rotates relative to the connecting seat (121) through the rotating member (133). The tensioning assembly (130) further comprises a first elastic member (131) installed in the rotating member (133) and abutting between the tensioning member (132) and the rotating member (133).

3. The folding device (100) according to claim 1, characterized in that When the gear arm (122) slides away from the tensioning member (132), the first elastic member (131) provides elastic force to the tensioning member (132) so that the tensioning member (132) is separated from the middle frame (111). ​ ​ 4. The folding device (100) according to any one of claims 1 to 3, characterized in that ​ ​ 5. The folding device (100) according to claim 4, characterized in that ​ ​ 6. The folding device (100) according to claim 5, characterized in that The tensioning assembly (130) further comprises a mounting member (134), and the rotating member (133) comprises a mounting cavity; The rotating member (133) is provided with a mounting hole (1331) in communication with the mounting cavity, and the mounting member (134) covers the mounting hole (1331) to fix the first elastic member (131) in the mounting cavity.

7. The folding device (100) according to claim 6, characterized in that At least one of the following is included: The first elastic member (131) is a torsion spring; The tensioning member (132) is a protruding block structure; The mounting member (134) is a mounting block; The tensioning member (132) and the rotating member (133) are integrally formed.

8. The folding device (100) according to any one of claims 5 to 7, characterized in that The gear arm (122) comprises an avoiding cavity (1221) with an opening facing the rotating member (133); When the gear arm (122) slides towards the tensioning member (132), the rotating member (133) is accommodated in the avoiding cavity (1221).

9. The folding device (100) according to any one of claims 1 to 3, characterized in that The middle frame (111) comprises at least two middle frames (111) located on opposite sides of the base (112); The frame assembly (110) further comprises a first supporting plate (113) and a second supporting plate, the second supporting plate is arranged on the base (112), and the first supporting plate (113) is arranged on the middle frame (111) to support the flexible display screen.

10. A smart terminal, characterized by A flexible display screen and a folding device (100) according to any one of claims 1 to 9.

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