KR20220038036A - Structure of arm and Structure of Hinge including the same and electronic device including the same - Google Patents

Abstract

The present invention discloses an electronic device including a hinge structure. The hinge structure includes an arm structure. The arm structure includes: an arm body; a first cam which is disposed on one side of the arm body, which includes a first hole in which at least a part of a rotation axis used for a folding operation of the foldable electronic device is inserted, and in which mountains and valleys are formed around a peripheral portion of the first hole; a second cam which is disposed on the same axis as one side of the arm body side by side, which is spaced apart from the first cam, which includes a second hole in which at least a part of the rotation axis is inserted, and in which mountains and valleys are formed around a peripheral portion of the second hole; and a connection unit disposed on another side of the arm body and fastened to a rotation unit used for rotation of the foldable electronic device.

Description

{Structure of arm and Structure of Hinge including the same and electronic device including the same}

Various embodiments of the present disclosure relate to an electronic device including an arm structure and a hinge structure.

A portable electronic device such as a smartphone may provide various functions, such as a call, video playback, and Internet search, based on various types of applications. A user may wish to use the above-described various functions through a wider screen. However, as the screen becomes larger, portability may deteriorate. Accordingly, a foldable portable electronic device capable of increasing portability by utilizing a foldable structure has been developed.

The foldable electronic device may be arranged such that adjacent housings and a hinge structure are connected, and the hinge structure rotates while supporting the housings while the housings rotate at a predetermined angle.

The foldable electronic device may include a display at least partially foldable. The display is formed to have a thickness less than a specified thickness to be foldable, and thus, the strength of the display may be weakened and a dent phenomenon may occur due to external pressure or impact. To solve this, a display with increased rigidity or reaction force (eg, increased thickness of the display) can be applied. When the thickness of the display increases, the repulsive force in the folded state (eg, the restoring force generated to return to the unfolded state) increases, so that a defect (eg, the phenomenon of not being completely folded) may occur in the folding operation of the display.

According to various embodiments of the present disclosure, an arm capable of providing a detent load (or a hinge force, or a force for maintaining a specific state of the electronic device) of a specified size so that the folding operation or the folded state of the foldable electronic device is stably maintained An object of the present invention is to provide a structure, a hinge structure, and an electronic device including the same.

Various embodiments provide an arm structure and a hinge structure capable of providing a detent load of a specified size without increasing the size (eg, thickness) of the electronic device or reducing the increase in size (eg, thickness) of the electronic device, and an electronic device including the same is in providing.

An electronic device (or a portable electronic device, a portable communication device, a foldable electronic device, or a foldable electronic device having a communication function) according to various embodiments of the present disclosure includes a first housing 110 and a second housing 120 . A housing, hinge structures 200a and 200b accommodated in the housing and connected to the first housing and the second housing, and a flexible display 160 disposed over the first housing, the hinge structure and the second housing Including, the hinge structure (200a), the first axis of rotation (231) rotating about the first axis (11), the second axis of rotation (232) rotating about the second axis (12), the second A first arm part 221 including a first cam structure 221_4a and a second cam structure 221_4b connected to a first rotation shaft, a third cam structure 222_4a and a fourth cam structure connected to the second rotation shaft ( 222_4b), a first rotating part 211 connected to the first arm and rotating about a third axis 13, a fourth shaft 14 connected to the second arm and connected to the second arm A first cam member 241a including a second rotating part 212 rotating based on ), a second cam member 241b including a third cam 241b_1a meshing with the second cam structure and a fourth cam 241b_1b meshing with the fourth cam structure, the second cam member 241b being connected to the first rotation shaft and the A first elastic body 242a providing an elastic force to the first cam, a second elastic body 242b connected to the second rotation shaft and providing an elastic force to the second cam, is connected to the first rotation shaft and is connected to the third cam It may include a third elastic body 242c providing an elastic force, and a second elastic body 242c connected to the second rotation shaft and providing an elastic force to the fourth cam.

The hinge structure used in the foldable electronic device according to various embodiments includes a first rotating part 211 that is connected to a first housing of the foldable electronic device and rotates within a predetermined angle range, and is connected to a second housing of the foldable electronic device. and a first arm part ( 221), the second arm portion 222 including a third cam structure (222_4a) and a fourth cam structure (222_4b) which is connected to the second rotation unit and spaced apart from each other by a predetermined interval, and rotates around the first shaft 11 At least a portion of the first and second cam structures are inserted into the first and second rotating shafts 231 and 12 to rotate around the rotating, and at least in the third and fourth cam structures. A second rotation shaft 232 partially inserted into and rotated, a first cam 241a_1a inserted into the first rotation shaft and engaged with the first cam structure, and a second cam 241a_1b engaged with the third cam structure. a first cam member 241a including; a third cam 241b_1a inserted into the second rotation shaft and engaged with the second cam structure; and a fourth cam 241b_1b engaged with the fourth cam structure. 2 cam member 241b, a first elastic body 242a connected to the first rotation shaft and providing an elastic force to the first cam, a second elastic body connected to the second rotation shaft and providing an elastic force to the second cam ( 242b), a third elastic body 242c connected to the first rotation shaft and providing an elastic force to the third cam, and a second elastic body 242c connected to the second rotation shaft and providing an elastic force to the fourth cam. and the first rotating part may rotate based on the third axis 13 , and the second rotating part may be rotated based on the fourth axis 14 .

The arm structure used in the foldable electronic device according to various embodiments includes an arm body, a first hole disposed on one side of the arm body and into which at least a portion of a rotation shaft used for a folding operation of the foldable electronic device is inserted, a first cam having mountains and troughs formed in the periphery of the first hole, a second hole disposed in parallel on the same axis as one side of the arm body, spaced apart from the first cam, and into which at least a portion of the rotation shaft is inserted; A second cam having mountains and valleys formed in the periphery of the second hole, and a connector disposed on the other side of the arm body and coupled to a rotating part used for rotation of the foldable electronic device may be included.

*10 The arm structure and the hinge structure and the electronic device including the same according to various embodiments provide a detent load of a specified size without increasing the size (eg, thickness) of the electronic device or while reducing the increase in size (eg, thickness) of the electronic device By doing so, it is supported to more firmly perform a folded state or a folding operation of the foldable electronic device.

In addition, the arm structure and the hinge structure according to the embodiment, and the electronic device including the same, resist the display repulsion force in the folded state by using the increased detent load even when the display rigidity, reaction force, or thickness is increased. can stably support the folded state of Accordingly, the hinge structure and the electronic device according to the embodiment may provide an opportunity to apply a display having strong resistance to dents or wrinkles caused by external pressure or impact to the electronic device.

In addition, the arm structure and the hinge structure and the electronic device including the same according to the embodiment may provide an opportunity to apply a flexible display of various materials or various shapes to a foldable electronic device according to an increase in a detent load.

In addition, various objects and effects provided by the arm structure and the hinge structure according to various embodiments and an electronic device including the same may be referred to according to the embodiments of the detailed description.

1A is an exploded perspective view of an electronic device according to various embodiments of the present disclosure;
1B is a diagram illustrating an example of a rear surface of an electronic device according to various embodiments of the present disclosure;
1C is a diagram illustrating an example of a folded state of an electronic device according to various embodiments of the present disclosure;
FIG. 2 is a diagram illustrating an example of a front surface and a rear surface of a hinge structure of an electronic device related to a plurality of detent structures according to various embodiments of the present disclosure;
3 is a view illustrating a surface in a first direction of an exploded perspective view of a hinge structure according to various embodiments of the present disclosure;
4 is a view showing a surface in a second direction of an exploded perspective view of a hinge structure according to various embodiments of the present disclosure;
5 is a view showing an example of a rotating part according to an embodiment.
6 is a view showing an example of a fixing bracket according to an embodiment.
7 is a view showing an example of an arm part according to an embodiment.
8 is a diagram illustrating an example of a second rotation shaft according to an embodiment.
9 is a diagram illustrating an example of a stopper configuration according to various embodiments of the present disclosure;
10 is a view showing an example of a center bracket according to various embodiments.
11 is a view showing an example of a shaft bracket according to various embodiments.
12 is a view illustrating an example of a cam member according to various embodiments of the present disclosure;
13 is a view showing an example of support rings according to various embodiments.
14 is a view for explaining a first state of some components of an electronic device according to various embodiments of the present disclosure;
15 is a view for explaining a first angular state of a partial structure of an electronic device according to various embodiments of the present disclosure;
16 is a view for explaining a second angular state of a first hinge structure according to various embodiments of the present disclosure;
17 is a view for explaining a second state of some structures of an electronic device according to various embodiments of the present disclosure;
18 is a view showing an example of another form of a third hinge structure according to various embodiments of the present disclosure;
19 is a perspective view in the first direction of an example of a coupling state of a third cam member, a fifth cam structure, and a sixth cam structure according to various embodiments of the present disclosure;
20 is a perspective view in the second direction of an example of a coupled state of a third cam member, a fifth cam structure, and a sixth cam structure according to various embodiments of the present disclosure;
21 is a view illustrating a coupling state of a fifth cam structure and a sixth cam structure, and a first rotation shaft and a second rotation shaft according to various embodiments of the present disclosure;
22 is a view illustrating an example of a fourth hinge structure according to various embodiments of the present disclosure;
23 is a view showing in more detail a fourth cam member and a fifth cam member shown in FIG. 22 according to various embodiments of the present disclosure;
24 is a view for explaining cam operation timings of a fourth cam member and a fifth cam member according to various embodiments of the present disclosure;
25 is a diagram illustrating an example of a fifth hinge structure according to various embodiments of the present disclosure;
26 is a view illustrating an example of a sixth hinge structure according to various embodiments of the present disclosure;
27A is a diagram illustrating another example of a cam shape according to various embodiments of the present disclosure;
27B is a diagram illustrating an example of a contact state between a cam and some mountains of a cam structure according to various embodiments of the present disclosure;

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. However, this is not intended to limit the technology described in this document to specific embodiments, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments of this document are included. . In connection with the description of the drawings, like reference numerals may be used for like components.

In this document, expressions such as "have", "may have", "includes", or "may include" indicate the presence of a corresponding characteristic (eg, a numerical value, function, operation, or component such as a part). and does not exclude the presence of additional features.

In this document, expressions such as “A or B”, “at least one of A or/and B”, or “one or more of A or/and B” may include all possible combinations of the items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" means (1) includes at least one A, (2) includes at least one B; Or (3) it may refer to all cases including both at least one A and at least one B.

Expressions such as "first", "second", "first", or "second" used in this document may modify various elements, regardless of order and/or importance, and may modify one element to another. It is used only to distinguish it from the components, and does not limit the components. For example, the first user equipment and the second user equipment may represent different user equipment regardless of order or importance. For example, without departing from the scope of the rights described in this document, a first component may be referred to as a second component, and similarly, the second component may also be renamed as a first component.

A component (eg, a first component) is "coupled with/to (operatively or communicatively)" to another component (eg, a second component) When referring to "connected to", it will be understood that the certain element may be directly connected to the other element or may be connected through another element (eg, a third element). On the other hand, when it is said that a component (eg, a first component) is "directly connected" or "directly connected" to another component (eg, a second component), the component and the It may be understood that other components (eg, a third component) do not exist between other components.

The expression "configured to (or configured to)" as used in this document, depending on the context, for example, "suitable for", "having the capacity to" It can be used interchangeably with "," "designed to", "adapted to", "made to", or "capable of". The term “configured (or configured to)” may not necessarily mean only “specifically designed to” in hardware. Instead, in some circumstances, the expression “a device configured to” may mean that the device is “capable of” with other devices or parts. For example, the phrase "a processor configured (or configured to perform) A, B, and C" refers to a dedicated processor (eg, an embedded processor) for performing the corresponding operations, or by executing one or more software programs stored in a memory device. , may mean a generic-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

Terms used in this document are only used to describe specific embodiments, and may not be intended to limit the scope of other embodiments. The singular expression may include the plural expression unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meanings as commonly understood by one of ordinary skill in the art described in this document. Among the terms used in this document, terms defined in a general dictionary may be interpreted with the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in this document, ideal or excessively formal meanings is not interpreted as In some cases, even terms defined in this document cannot be construed to exclude embodiments of this document.

An electronic device according to various embodiments of the present document may include, for example, a smartphone, a tablet personal computer, a mobile phone, a video phone, an e-book reader, desktop personal computer, laptop personal computer, netbook computer, workstation, server, personal digital assistant, PMP (portable multimedia player), MP3 player, mobile medical It may include at least one of a device, a camera, and a wearable device. According to various embodiments, the wearable device is an accessory type (eg, a watch, a ring, a bracelet, an anklet, a necklace, glasses, contact lenses, or a head-mounted-device (HMD)), a fabric or an integrated clothing ( It may include at least one of: electronic clothing), body attachable (eg skin pad or tattoo), or bioimplantable (eg implantable circuit).

Hereinafter, an electronic device according to various embodiments will be described with reference to the accompanying drawings. In this document, the term user may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) using the electronic device.

1A is an exploded perspective view of an electronic device according to various embodiments of the present disclosure, FIG. 1B is a diagram illustrating an example of a rear surface of an electronic device according to various embodiments, and FIG. 1C is a folding view of the electronic device according to various embodiments of the present disclosure; It is a diagram showing an example of the state.

1A to 1C , an electronic device 100 (or a foldable electronic device, or a flexible display device, or a flexible & foldable electronic device) according to an exemplary embodiment includes a housing 101 (eg, a first housing). (110, second housing 120)), hinge housing 150, hinge structure 200 (eg, first hinge structure 200a, second hinge structure 200b) and the hinge structure 200 may include a display 160 (or a flexible display, a display module) that is at least partially disposed in a front direction (eg, a z-axis direction) of the . Additionally, generally, the electronic device 100 includes a first cover 119 and a second housing 120 that cover at least a portion of a rear surface (eg, a surface facing the -z-axis direction) of the first housing 110 . A second cover 129 covering at least a portion of a rear surface (eg, a surface facing in the -z-axis direction) may be further included. Alternatively, the first cover 119 may form a rear surface integrally with the first housing 110 , and the second cover 129 may form a rear surface integrally with the second housing 120 . there is.

The housing 101 may be configured as at least one pair that can rotate about a certain axis. For example, the housing 101 may include a first housing 110 and a second housing 120 . The first housing 110 may be arranged continuously with the second housing 120 according to the arrangement form (eg, when the central portion 163 of the display 160 is flattened or the housing 101 is in an unfolded state) when), the second housing 120 and may be arranged in parallel. Alternatively, when the center 163 of the display 160 is folded, one surface of the first housing 110 may be disposed to face the one surface of the second housing 120 .

The first housing 110 may be, for example, at least partly made of a metal material, or at least partly made of a non-metallic material. The first housing 110 may be formed of a material having a certain size of rigidity to support at least a portion of the display 160 . An area of the display 160 (eg, at least a portion of the first portion 161 of the display 160 and at least a portion of one side of the central portion 163) may be disposed on at least a portion of the front surface of the first housing 110 . . At least a portion of the first housing 110 may be adhered to the first portion 161 of the display 160 . Alternatively, at least a portion of the front edge of the first housing 110 may be adhered to the edge of the first portion 161 of the display 160 . Alternatively, at least a portion of the front surface (eg, a surface in the z-axis direction) of the first housing 110 may be adhered to at least a portion of the first portion 161 of the display 160 . In this regard, an adhesive layer may be disposed on at least a portion between the first housing 110 and the first portion 161 of the display 160 . At least a portion of the inside of the first housing 110 is provided in a hollow shape or is provided in a hollow shape while being coupled to the first cover 119 , and an electronic element (eg, a printed circuit) required for driving the electronic device 100 . A substrate, at least one processor mounted on the printed circuit board, at least one memory, and elements such as a battery) may be disposed.

According to various embodiments, the edge end of the first housing 110 (eg, the edge edge of the other three places except for the edge facing the second housing 120 in the unfolded state of the electronic device 100) is the display ( 160) It may protrude by a specified height from the bottom surface of the center of the housing so as to surround at least one edge. Alternatively, sidewalls at least partially facing the edge of the display 160 may be disposed on at least one of the edge ends of the first housing 110 . The sidewalls formed on at least a portion of the edge of the first housing 110 may be formed to have a specified height at the edges of the other three places except for the edge facing the second housing 120 . An edge portion of the first housing 110 facing the second housing 120 may include a recessed portion at least a portion of which has a predetermined curvature so that at least a portion of the hinge housing 150 may be disposed. For example, in the first housing 110 at an edge portion facing the second housing 120 , the first step portion 111 and the hinge in which a portion of the first hinge structure 200a located in the hinge housing 150 is located. The housing 150 may include a second step portion 112 in which a portion of the second hinge structure 200b is disposed.

According to various embodiments, the second housing 120 is disposed in parallel with the first housing 110 or at least one surface of the first housing 110 (eg, the display 160 is disposed on one side) according to the arrangement. surface) and may be disposed to face. For example, the second housing 120 may be made of the same material as the first housing 110 . As the second housing 120 is disposed in a shape symmetrical to the left and right or up and down with the first housing 110 , at least a portion of the remaining one area of the display 160 in the area disposed in the first housing 110 on the front side. (eg, at least a portion of the second portion 162 of the display 160 and at least a portion of the other side of the central portion 163). At least a portion of the second housing 120 may be adhered to the second portion 162 of the display 160 . Alternatively, the front edge of the second housing 120 may be adhered to the edge of the second portion 162 of the display 160 . Alternatively, one side of the lower front side of the second housing 120 may be adhered to one side of the second part 162 of the display 160 . In this regard, an adhesive layer may be disposed on at least a portion between the second housing 120 and the second portion 162 of the display 160 . At least a portion of the inside of the second housing 120 is provided in a hollow shape similar to the first housing 110 , or is provided in a hollow shape while being coupled to the second cover 129 , which is necessary for driving the electronic device 100 . An electronic element may be disposed. According to various embodiments, the camera 190 may be disposed on the rear surface of the second housing 120 , and in relation to the arrangement of the camera 190 , the camera 190 may be disposed on the second cover 129 . A hole may be formed.

According to various embodiments, the edge end of the second housing 120 (eg, the edge end of the other three places except for the edge facing the first housing 110 ) is the second housing 120 to surround the other edge of the display 160 . It may protrude by a specified height from the bottom surface of the center of the housing 120 . Alternatively, sidewalls at least partially facing the edge of the display 160 may be disposed on at least one portion of the edge end of the second housing 120 , similar to the sidewalls formed in the first housing 120 . The sidewalls formed on at least a portion of the edge of the second housing 120 may be formed to have a specified height at the edges of the other three places except for the edge facing the first housing 110 .

According to various embodiments, at least a portion of the second housing 120 facing the first housing 110 may include a recessed portion having a predetermined curvature so that the hinge housing 150 can be disposed. . For example, the second housing 120 includes a third step portion 121 and a third step portion 121 in which a portion of the hinge housing 150 on which the first hinge structure 200a is mounted is disposed on an edge portion facing the first housing 110 . The second hinge structure 200b may include a fourth step portion 122 in which a portion of the hinge housing 150 is mounted.

According to various embodiments, the electronic device 100 may include at least one sensor disposed on one side inside the first housing 110 or the second housing 120 . The sensor may include, for example, at least one of a proximity sensor, an illumination sensor, an iris sensor, an image sensor (or a camera), and a fingerprint sensor.

According to various embodiments, the hinge housing 150 is covered by one side of the first housing 110 and the second housing 120 according to the folded or unfolded state of the electronic device 100 (eg, the housing 101 ). ) in an unfolded state), and exposed to the outside (eg, a folded state of the housing 101 ). For example, when the first housing 110 and the second housing 120 are arranged side by side, the hinge housing 150 may be covered by the first housing 110 and the second housing 120 . When one surface of the first housing 110 and one surface of the second housing 120 are disposed to face each other, the hinge housing 150 is formed on one edge of the first housing 110 and the second housing 120 (eg: At least a portion of the first housing 110 and the second housing 120 (edges facing each other) in the unfolded state may be exposed to the outside. In the hinge housing 150 , at least a portion of the interior thereof is empty, and sidewalls may be disposed such that at least a portion of both edges (eg, edges in the x-axis and -x-axis directions) are closed. At least one boss fastened to the first hinge structure 200a and the second hinge structure 200b may be disposed on at least a portion of the inner surface of the hinge housing 150 .

According to various embodiments, at least a portion of the display 160 may have flexibility. According to an embodiment, the display 160 includes a first part 161 or a first region disposed on the first housing 110 , and a second part 162 disposed on the second housing 120 , or a second region and a central region 163 or a central region adjacent to the first housing 110 and the second housing 120 in an unfolded state of the electronic device 100 and corresponding to a position of the hinge structure 200 can do. According to various embodiments, the entire display 160 may have flexibility. Alternatively, at least a portion of the central portion 163 of the display 160 may have flexibility. The central portion 163 of the display 160 may be disposed so that the first housing 110 and the second housing 120 are not adhered to each other. For example, the central portion 163 of the display 160 may be spaced apart from the front surface (eg, a surface in the z-axis direction) of the hinge structure 200 during the folding operation of the electronic device 100 . The first portion 161 of the display 160 is adhered to at least a portion of the first housing 110 , and the second portion 162 of the display 160 is adhered to at least a portion of the second housing 120 . can be In this regard, adhesive layers may be respectively disposed on at least a partial area between the display 160 and the first housing 110 and at least a partial area between the display 160 and the second housing 120 . The display 160 may include various layers. For example, the display 160 has an external protective layer (or glass layer or polymer layer) having a certain amount of transparency and having a specified size or more, a display panel layer disposed under the external protective layer to display a screen, and a display panel layer lower than the display panel layer. and a first backside layer disposed thereon. The first back layer may include a shock absorption layer (or embossing) and a heat dissipation layer (or a metal sheet layer). Additionally or alternatively, the first back layer may further include an electromagnetic induction panel (eg, a digitizer). According to various embodiments, the display 160 may further include a second back layer disposed under the first back layer. The second back layer may include at least one metal layer (or metal sheet), at least a portion of which is made of a metal material. A designated pattern (eg, a lattice pattern, a slit pattern) may be included so that at least a portion of the second back layer may be bent. Alternatively, at least a portion of the second back layer may be formed of another bendable material (eg, a polymer material, rubber material, or leather material).

According to various embodiments, at least one hinge structure 200 may be disposed with respect to the x-axis direction. For example, the Korean paper structure 200 may include a first hinge structure 200a and a second hinge structure 200b. The hinge structure 200 includes a first portion 200_1 disposed inside the hinge housing 150 and a periphery that is disposed above the hinge housing 150 or does not overlap the hinge housing 150 on the z-axis basis. A second portion 200_2 corresponding to a structure (eg, a structure coupled to the first housing 110 and the second housing 120 ) may be included. At least a portion of the first hinge structure 200a among the first portions of the hinge structure 200 is a first inner side of the hinge housing 150 (eg, a region biased in the x-axis direction within the hinge housing 150 ) can be placed in At least a portion of the second hinge structure 200b among the first portions of the hinge structure 200 is a second inner side of the hinge housing 150 (eg, a region biased in the -x-axis direction within the hinge housing 150 ) ) can be placed in At least a portion of the second portion of the hinge structure 200 may rotate in response to the rotational operation of the first housing 110 and the second housing 120 . At least one of the first hinge structure 200a and the second hinge structure 200b according to an embodiment may include a plurality of detent structures.

FIG. 2 is a view showing an example of a front surface and a rear surface of a hinge structure of an electronic device related to a plurality of detent structures according to various embodiments, and FIG. 3 is an exploded perspective view of a hinge structure according to various embodiments of the first direction It is a view showing a surface, and FIG. 4 is a view showing a surface in the second direction of an exploded perspective view of a hinge structure according to various embodiments of the present disclosure.

1 to 4 , the electronic device 100 according to an embodiment may include a plurality of hinge structures 200 , and the first hinge structure 200a and the second hinge structure 200b are the same. It can have a structure and form. In the following description, the first hinge structure 200a will be described as the basis. 1 shows a structure in which the first hinge structure 200a and the second hinge structure 200b are disposed in the hinge housing 150, the present invention is not limited thereto, and three or more hinge structures are provided in the hinge housing ( 150) may be installed.

According to various embodiments, the first hinge structure 200a includes rotating parts 211 and 212 , a fixing bracket 213 , arm parts 221 , 222 , and idle gears 233 , 234 ) and a multi-detent structure 240 .

According to various embodiments, the rotating parts 211 and 212 may form a driving trajectory of the display 160 . The rotating parts 211 and 212 may include a first rotating part 211 coupled to one side of the fixing bracket 213 and a second rotating part 212 coupled to the other side of the fixing bracket 213 . The first rotating part 211 may rotate (eg, clockwise or counterclockwise with respect to the x-axis) within a first angle range while being coupled to one side of the fixing bracket 213 . The second rotating part 212 may rotate (eg, counterclockwise or clockwise with respect to the x-axis) within a second angle range while being coupled to one side of the fixing bracket 213 . The first angle range and the second angle range may have the same size and opposite directions. When the electronic device 100 is in the unfolded state, the -y-axis direction edge of the first rotating part 211 may be disposed adjacent to the y-axis direction edge of the second rotating part 212 . When the electronic device 100 is in a folded state, an upper surface of the first rotating part 211 (eg, a surface facing the z-axis direction) and an upper surface of the second rotating part 212 (eg, a surface facing the z-axis direction) ) may be arranged to face each other. The first rotating part 211 rotates within a certain angle range (eg, within 0 degrees to 100 degrees or 0 degrees to 95 degrees) about a third axis (13 in FIG. 14 ) (or an imaginary axis). can do. The second rotation unit 212 is located within a certain angle range (eg, within 0 degrees to -100 degrees or 0 degrees to -95 degrees) about a fourth axis (14 in FIG. 14 ) (or a virtual axis). can rotate. The third axis 13 and the fourth axis 14 may be spaced apart from each other by a predetermined interval. The third axis 13 and the fourth axis 14 may be located above the first axis 11 and the second axis 12 with respect to the z axis.

According to various embodiments, at least a portion of the fixing bracket 213 may be disposed and fixed to an inner empty space of the hinge housing 150 . In this regard, at least a portion of the fixing bracket 213 may have a size corresponding to the empty space inside the hinge housing 150 . In addition, at least a portion of the fixing bracket 213 may have a shape corresponding to the empty space inside the hinge housing 150 , for example, a semi-cylindrical shape. The fixing bracket 213 may include at least one hole into which at least one boss formed in the hinge housing 150 may be inserted. One side of the first rotating part 211 may be disposed on one side of the fixing bracket 213 to be rotatable within a predetermined angle range, and the other side of the fixing bracket 213 is one side of the second rotating part 212 . It may be arranged to be rotatable within this predetermined angular range. A part of the multi-detent structure 240 (eg, one side of the first rotational shaft 231 and one side of the second rotational shaft 232) on one side of the front side (the end of the -x-axis direction) of the fixing bracket 213 and Some of the idle gears 233 , 234 may be disposed. According to various embodiments, the first hinge structure 200a is disposed in the rear direction of the fixing bracket 213 (eg, the -z-axis direction), and the rear surface of the fixing bracket 213 (eg, the z-axis in the -z axis). It may further include a bracket cover 214 that is fastened to the surface that is visible when facing).

According to various embodiments, the arm parts (or arm structures) 221 and 222 perform a sliding operation on one side of the rotating parts 211 and 212 in response to the rotation of the rotating parts 211 and 212 of the electronic device 100 . While rotating with respect to rotational axes (eg, the first rotational shaft 11 and the second rotational shaft 22), a detent operation may be implemented while being engaged with the cam members 241a and 241b. For example, the arm parts (221, 222) is connected to one side of the rotating parts (211, 212) through the fastening parts (251, 252), according to the rotation of the rotating parts (211, 212) at least a portion of the side of the rotating parts (211, 212) The arm parts 221 and 222 are, for example, a first arm part 221 and a second rotation part ( It may include a second arm part 222 connected to 212 through a second coupling part 252. The first arm part 221 may include cam members 241a included in the multi-detent structure 240 . , 241b) and includes a first cam structure 221_4a and a second cam structure 221_4b, and the second arm 222 includes cam members 241a and 241b included in the multi-detent structure 240 . ) may include a third cam structure 222_4a and a fourth cam structure 222_4b coupled to the first cam structure 221_4a and a second cam structure 221_4a coupled to the cam members 241a and 241b. 221_4b may implement a cam-type detent during folding and unfolding (or folding and unfolding) operations of the electronic device 100. The first arm part 221 and the second arm part 222 are cam members. A hinge force (or a sense of detent) of the electronic device 100 may be provided by using the cam structures 221_4a, 221_4b, 222_4a, and 222_4b engaged with the 241a and 241b. ) is a more rigid and stable hinge based on the multi-detent structure 240 . While providing a force (or a sense of detent), it is possible to support improved abrasion resistance and a softer hinge force (or sense of detent) through the multi-detent structure 240 .

According to various embodiments, the multi-detent structure 240 includes a first rotation shaft 231 , a second rotation shaft 232 , a rotation shaft support member 235 , a stopper 236 , a first cam member 241a , and a second rotation shaft 232 . 2 cam member 241b, center bar 243c, center bracket 243a, shaft bracket 243b, support rings 292_1 and 292_2 (support ring), a plurality of fixing clips 291_1, 291_2, 291_3, 291_4 ), and may include a plurality of elastic bodies 242a, 242b, 242c, and 242d.

According to various embodiments, the first rotation shaft 231 and the second rotation shaft 232 may provide a cam-type hinge force (or a sense of detent). The first rotation shaft 231 and the second rotation shaft 232 may be formed to have a length longer than a distance between the cam structures formed in the arm parts 221 and 222 . The first rotation shaft 231 and the second rotation shaft 232 may be disposed to be spaced apart from each other, and may be disposed in parallel in the x-axis direction. Shaft gears 232_1 and 232_1 are respectively formed on the first rotation shaft 231 and the second rotation shaft 232 , and the respective shaft gears 232_1 and 232_1 are different idle gears (eg, first idle gears). (233), the second idle gear (234) may be arranged to mesh. Accordingly, the arm parts 221 and 222 of the hinge structure 200 may rotate at the same point in time and at the same angle to the force generated while the first and second rotation units 211 and 212 rotate. The first rotation shaft 231 may rotate about the first shaft 11 , and the second rotation shaft 232 may rotate about the second shaft 12 .

According to various embodiments, the first rotation shaft 231 has one side of the rotation shaft support member 235, one side of the stopper 236, one side of the center bracket 243a, one side of the shaft bracket 243b, and a first support ring. (292_1), the first fixing clip 291_1 may be inserted. The first rotation shaft 231 has a first cam 241a_1a formed on the first cam member 241a, a third cam 241b_1a formed on the second cam member 241b, and a first cam of the first arm part 221 . The structure 221_4a, the second cam structure 221_4b, the first elastic body 242a, and the third elastic body 242c may be inserted. A first shaft gear 231_2 may be formed on the first rotation shaft 231 , and at least a portion of the first shaft gear 231_2 may be disposed to mesh with the first idle gear 233 . One end (eg, an end in the x-axis direction) of the first rotation shaft 231 may be disposed on one side (eg, an end in the -x-axis direction) of the fixing bracket 213 .

According to various embodiments, the second rotation shaft 232 includes the other side of the rotation shaft support member 235 , the other side of the stopper 236 , the other side of the center bracket 243a , the other side of the shaft bracket 243b , and a second support ring. (292_2), the second fixing clip 291_2 may be inserted. The second rotation shaft 232 has a second cam 241a_1b formed on the first cam member 241a, a fourth cam 241b_1b formed on the second cam member 241b, and a third cam of the second arm part 222 . The structure 222_4a, the fourth cam structure 222_4b, the second elastic body 242b, and the fourth elastic body 242d may be inserted. A second shaft gear 232_2 may be formed on the second rotation shaft 232 , and at least a portion of the second shaft gear 232_2 may be disposed to mesh with the second idle gear 234 . One end (eg, an end in the x-axis direction) of the second rotation shaft 232 may be disposed on one side (eg, an end in the -x-axis direction) of the fixing bracket 213 .

According to various embodiments, the rotation shaft support member 235 includes a first ring 235_1 coupled to the first rotation shaft 231 , a second ring 235_2 connected to the second rotation shaft 232 , and the first ring A ring body 235_3 facing one side of the idle gears 233 and 234 while connecting the 235_1 and the second ring 235_2 may be included. The ring body 235_3 has a first hole 235_3a into which one side of the first idle gear 233 can be inserted and a second hole 235_3b into which one side of the second idle gear 234 can be inserted. may include The rotation shaft support member 235 may be disposed between the stopper 236 and the shaft gears 231_2 and 232_2 formed on the rotation shafts 231 and 232 . The rotation shaft support member 235 may be disposed to surround at least a portion of the idle gears 233 and 234 , and guide the idle gears 233 and 234 not to deviate from a designated position.

According to various embodiments, the center bar 243c is provided in a bar shape having an x-axis direction longer than a y-axis direction, and is disposed between the first rotational shaft 231 and the second rotational shaft 232 , and the first A space between the rotation shaft 231 and the second rotation shaft 232 may be covered. The center bar 243c may include at least one protrusion formed in the -z-axis direction. The at least one protrusion may be engaged with a hole formed in the center bracket 243a and a hole formed in the shaft bracket 243b. The center bar 243c may move in the z-axis or -z-axis direction according to the rotation of the first arm part 221 and the second arm part 222 . For example, the center bar 243c moves in the z-axis direction to support the display 160 when the electronic device 100 is in an unfolded state, and is subjected to a drop impact or an external action force when the electronic device 100 is in a folded state. The display 160 may be moved downward by a certain distance in the -z-axis direction to secure a distance from the display 160 so that the display 160 is not damaged.

According to various embodiments, the shaft bracket 243b may be disposed between the support rings 292_1 and 292_2 and the first elastic body 242a and the second elastic body 242b. The shaft bracket 243b includes ring-shaped blades that can be inserted into the first and second rotation shafts 231 and 232 , and may include a body supporting the blades. The shaft bracket 243b may be coupled to a protrusion formed on the center bar 243c. The shaft bracket 243b may guide the first rotation shaft 231 and the second rotation shaft 232 to maintain a predetermined distance while rotating.

According to various embodiments, the plurality of fixing clips 291_1, 291_2, 291_3, and 291_4 are first fixing clips 291_1 coupled to one side (eg, the end in the -x-axis direction) of the first rotation shaft 231 . , a second fixing clip 291_2 coupled to one side (eg, the end of the -x-axis direction) of the second rotation shaft 232, one side of the first fastening part 251 (the end of the -x-axis direction) coupled to The third fixing clip 291_3 may include a fourth fixing clip 291_4 coupled to one side (the end of the -x-axis direction) of the second fastening part 252 . The first fixing clip 291_1 is configured to be inserted into the first rotation shaft 231 (eg, a first support ring 292_1, one side of the shaft bracket 243b, a first elastic body 242a, a first cam 241a_1a) , at least one of one side of the center bracket 243a, the third elastic body 242c, the third cam 241b_1a, one side of the stopper 236, and one side of the rotation shaft support member 235) is one side (-x-axis direction) It can play a role in fixing it so that it does not come off. The second fixing clip 291_2 is configured to be inserted into the second rotation shaft 232 (eg, the second support ring 292_2, the other side of the shaft bracket 243b, the second elastic body 242b, the second cam 241a_1b) , at least one of the other side of the center bracket 243a, the fourth elastic body 242d, the fourth cam 241b_1b, the other side of the stopper 236, and the other side of the rotation shaft support member 235) is on one side (-x-axis direction) It can play a role of fixing it so that it does not come off. The third fixing clip 291_3 is inserted through the first arm part 221 and the first rotation part 211 while the first arm part 221 slides along the side surface of the first rotation part 211 for the first fastening. It may serve to prevent the part 251 from being separated from the first arm part 221 or the first rotation part 211 . The fourth fixing clip 291_4 is a second fastening part disposed to pass through the second arm part 222 and the second rotation part 212 while the second arm part 222 slides along the side surface of the second rotation part 212 . 252 may serve to prevent separation from the second arm part 222 and the second rotation part 212 .

According to various embodiments, the plurality of elastic bodies 242a, 242b, 242c, and 242d are, for example, a first disposed between one side of the shaft bracket 243b and the first cam 241a_1a of the first cam member 241a. An elastic body 242a, a second elastic body 242b disposed between the other side of the shaft bracket 243b and the second cam 241a_1b of the first cam member 241a, one side of the center bracket 243a, and the second cam member 241b ) of the third elastic body 242c disposed between the third cam 241b_1a, the fourth elastic body 242d disposed between the other side of the center bracket 243a and the fourth cam 241b_1b of the second cam member 241b. may include The plurality of elastic bodies 242a, 242b, 242c, and 242d may provide elastic force required for the cam operation of the first cam member 241a and the second cam member 241b, respectively. According to an embodiment, in order to provide the same hinge force (or sense of detent) during the rotational operation of the electronic device 100 , the first elastic body 242a and the second elastic body 242b (or the third elastic body 242c) The fourth elastic body 242d) may have the same characteristics. For example, the plurality of elastic bodies 242a, 242b, 242c, and 242d may have a spring structure having the same or similar length, thickness, and diameter. Alternatively, according to various embodiments, the plurality of elastic bodies 242a, 242b, 242c, and 242d have different lengths, thicknesses and diameters (eg, the first elastic body 242a and the second elastic body 242b) are the same or similar to each other. Having one length, a first thickness, and a first diameter, the third elastic body 242c and the fourth elastic body 242d have the same or similar second length (eg, a second length different from the first length), a second thickness ( For example, it may have a second diameter different from the first thickness) and a second diameter (eg, a second diameter different from the second diameter).

As described above, the hinge structures 200a and 200b according to an embodiment are coupled to the hinge housing 150 and the housings 110 and 120 and a rotating part involved in the folding or unfolding operation of the display 160 placed on the upper side. A gear structure ( For example, it may include a shaft gear of the first rotation shaft 231 , a shaft gear of the second rotation shaft 232 , and idle gears 233 and 234 ).

Based on this, the hinge structures 200a and 200b rotate based on an imaginary axis (or the third axis 13 and the fourth axis 14 ) formed above the surfaces of the rotating parts 211 and 212 . Thus, the display 160 can be folded or unfolded, and an improved sense of detent is provided based on a plurality of cam structures, and a gear structure (eg, a shaft gear on the first rotation shaft 231 , a second rotation shaft 232 ) Simultaneous hinge operation of the housings 110 and 120 is supported based on the shaft gear and idle gears 233 and 234) in . In addition, the hinge structures 200a and 200b are not only in the unfolded state or the folded state of the housings 110 and 120, but also have a predetermined angle, for example, 30 degrees to 60 degrees (for example, the front surface of the first housing 110 and the second A temporary fixing state including a partially folded state between the front surfaces of the housing 120 may be supported.

In order to increase the detent load in the hinge structure according to an embodiment, it is necessary to increase the elastic force acting on the cam operation. , it is necessary to increase the wire diameter of the spring, but the effect of increasing the load by expanding the free field and reducing the number of windings is subtle. On the other hand, the inner diameter of the spring can be reduced or the outer diameter of the spring can be increased to increase the spring load. In the case of the inner diameter reduction, the diameters of the rotary shafts 231 and 232 must be reduced, so that the concentricity of the rotary shafts 231 and 232 is reduced and parts Warpage may occur during the manufacturing process. In addition, when the outer diameter is increased, there is a condition (eg, increase in the thickness of the hinge structure and increase the thickness of the electronic device 100 according to the increase in the thickness of the hinge structure) that interference of spring-related peripheral components occurs or an additional space is required to exclude component interference. can In addition, in the case of an increase in the elastic force of the limited spring, the load may be concentrated on the cam part, and wear may be deteriorated. In this regard, the hinge structures 200a and 200b of the electronic device 100 according to various embodiments have a plurality of elastic bodies in a state in which the plurality of cam members 241a and 241b and the arm parts 221 and 222 are fastened. While increasing the maximum load and constant load acting on the cam operation by the elements 242a, 242b, 242c, 242d, to reduce the increase in space (eg, reduce or prevent increase in the thickness of the hinge structure), wear performance (eg, as the cam structure and the number of cams increase, the loss load decreases with the number, for example, a four cam structure provides 1/4 loss load). According to various embodiments, the first elastic body 242a and the third elastic body 242c may have the same length, and the second elastic body 242b and the fourth elastic body 242b may have the same length. According to various embodiments, in a state in which the first elastic body 242a and the third elastic body 242c have different lengths and the second elastic body 242b and the fourth elastic body 242b have different lengths, the The sum of the lengths of the first elastic body 242a and the third elastic body 242c may be equal to the sum of the lengths of the second elastic body 242b and the fourth elastic body 242b.

5 is a view showing an example of a rotating part according to an embodiment. Prior to the description, the rotating part shown in FIG. 5 exemplifies the second rotating part in FIGS. 3 and 4 above. The second rotation unit 212 may have the same size, shape, and material, except for a structure symmetrical to the left and right with respect to the first rotation unit 211 and the first axis 11 (or the second axis 12 ). In the following description, the structure of the rotating unit will be described with reference to the second rotating unit 212 .

Referring to FIG. 5 , the second rotating part 212 according to an embodiment includes a bracket body 212_1 and a slide hole 212_2 formed at one end (eg, an end in the -x-axis direction) of the bracket body 212_1 . ), the rail 212_3 formed on the other end (eg, the end in the -y-axis direction) of the bracket body 212_1, and the second housing (eg, the second housing 120 in FIG. 1 ). It may include a housing coupling hole (212_4). The first rotating part 211 described above with reference to FIG. 3 or 4 may include a bracket body, a slide hole, a rail, and a housing coupling hole, similarly to the second rotating part 212 .

According to various embodiments, in the bracket body 212_1, the x-axis is relatively longer than the y-axis, and at least a portion of a surface facing the z-axis is formed to be flat, and at least a portion of a surface facing the -z-axis is also entirely flat. can be formed. Based on the drawing, the slide hole 212_2 is formed at the right end (eg, the end of the -x-axis direction) of the bracket body 212_1 to face downward (eg, the -z-axis direction), and the bracket body At one end (eg, the end in the -y-axis direction) of the 212_1, the rail 212_3 may be disposed to face the lower surface (eg, the surface in the -z-axis direction). At least one housing coupling hole 212_4 used for coupling the second housing 120 may be disposed in the bracket body 212_1 . Although the illustrated drawing shows a form in which three housing coupling holes 212_4 are disposed, the present invention is not limited thereto. For example, two or more housing coupling holes 212_4 may be formed, and two or more housing coupling holes 212_4 may be disposed to be spaced apart from the bracket body 212_1. According to various embodiments, at least one bracket coupling hole 212_5 may be disposed in the bracket body 212_1. The bracket coupling hole 212_5 is engaged with the coupling protrusion formed on the fixing bracket 213 when the electronic device 100 is in the unfolded state, and is separated from the coupling protrusion of the fixing bracket 213 when the electronic device 100 is in the folded state. can The number of the bracket coupling holes 212_5 may correspond to the number of coupling protrusions of the fixing bracket 213 .

According to various embodiments, the slide hole 212_2 may be disposed at the other end (eg, the -x-axis direction end) of the bracket body 212_1 while being disposed under the bracket body 212_1. The slide hole 212_2 may be formed to have a length in a first direction (eg, a y-axis direction) longer than a length in a third direction (eg, an x-axis direction). Accordingly, the second fastening part 252 inserted into the slide hole 212_2 may move in any one of a first direction (eg, a y-axis direction) and a second direction (eg, a -y-axis direction) within the slide hole 212_2. It can slide in one direction. The slide hole 212_2 may be disposed to face a surface of the second arm part 221 in the fourth direction (eg, a surface disposed in the -x-axis direction). At least a partial area of the slide hole 212_2 may be aligned with the connection hole of the second arm part 222 . Accordingly, at least a portion of the second coupling part 252 may be disposed inside the slide hole 212_2 and the connection hole.

According to various embodiments, the rail 212_3 may be disposed at an end of the bracket body 212_1 in the second direction (eg, an end in the -y-axis direction), and may be disposed under the bracket body 212_1. The rail 212_3 may have an arc shape of a predetermined angle. The rail 212_3 is inserted into a rail groove (or a rail-type hole) disposed on the fixing bracket 213 and can rotate within a specified rotation range along the rail groove. According to an embodiment, the rotation range of the rail 212_3 may be included within an angle of an arc forming the shape of the rail 212_3. For example, the rotation range of the rail 212_3 may be at least a partial range within a range of -10 degrees to 100 degrees (eg, a range of 0 degrees to 95 degrees). The rail 212_3 may rotate between the -z axis and the z axis based on the fourth axis 14 formed by the rail groove of the fixing bracket 213 .

The housing coupling hole 212_4 is formed on one side (eg, one edge toward the y-axis direction) of the bracket body 212_1, and a surface in the first direction (eg, a surface in the y-axis direction) and a surface in the second direction ( For example, it may be formed to penetrate through the -y-axis direction. Although the illustrated drawings illustrate that three housing coupling holes 212_4 are formed in the bracket body 212_1, the present invention is not limited thereto.

6 is a view showing an example of a fixing bracket according to an embodiment.

Referring to FIG. 6 , at least a portion of the shape of the lower surface (eg, the surface in the -z-axis direction) of the fixing bracket 213 may include a curved surface. For example, the lower surface of the fixing bracket 213 may be formed to correspond to the inner shape of the hinge housing (eg, the hinge housing 150 of FIG. 1 ). At least a portion of an upper surface (eg, a surface in the z-axis direction) of the fixing bracket 213 is provided in a flat shape, and rotation brackets (eg, rotation brackets 211 and 212 of FIG. 1 ) may be coupled to each other. Rail grooves 213a and 213b (or rail holes) may be formed so that the rail grooves 213a and 213b are formed. According to one embodiment, at least a portion of the z-axis cross-section (eg, the cross-section cut from the z-axis to the -z-axis) of the fixing bracket 213 is provided in an arc shape, and the rail of the first rotating part 211 is the first It may include a first rail groove 213a inserted in the second direction (eg, -y-axis direction) in the direction (eg, the y-axis direction).

3 and 6, according to one embodiment, the fixing bracket 213 is provided in an arc shape at least a portion of the z-axis cross-section (eg, the cross-section cut in the z-axis -z-axis direction), the second The rail 212_3 of the rotating part 212 may include a second rail groove 213b inserted in the first direction (eg, the y-axis direction) in the second direction (eg, the -y-axis direction). The first rail groove 213a is disposed to be biased in the -y-axis direction compared to the second rail groove 213b, and the second rail groove 213b is disposed to be biased in the y-axis direction compared to the first rail groove 213a. can be The first rail groove 213a may rotate with respect to the third axis 13 , and the second rail groove 213b may rotate with respect to the fourth axis 14 . The third axis 13 and the fourth axis 14 are formed on the upper side (air) than the upper surface (eg, the z-axis direction) of the fixing bracket 213, and are disposed to be biased in the -y-axis direction. The third shaft 13 and the fourth shaft 14 may be formed to be spaced apart from each other by the first rail groove 213a and the second rail groove 213b disposed to be biased in the y-axis direction. According to an embodiment, the fixing bracket 213 is formed on a side portion disposed in a third direction (eg, the x-axis direction) and includes a first groove 213_2a and a second end in which one end of the first rotation shaft 231 is disposed. A second groove 213_2b in which one end of the rotation shaft 232 is disposed may be included.

According to various embodiments, the fixing bracket 213 may include a first fixing hole 213_1a and a second fixing hole 213_1b used to fix the fixing bracket 213 to the hinge housing 150 . . The electronic device 100 may fix the fixing bracket 213 to the hinge housing 150 using a coupling member (eg, a coupling member such as a screw). According to an embodiment, the first fixing hole 213_1a and the second fixing hole 213_1b are the upper portions of the fixing bracket 213 to more firmly and stably fix the fixing bracket 213 to the hinge housing 150 . It may be disposed symmetrically in a diagonal direction from a plane (eg, a plane in the z-axis direction).

According to various embodiments, the fixing bracket 213 may include at least one bracket protrusion 213_3 inserted into the bracket coupling hole 212_5 formed in the first rotating part 211 . In addition, a bracket coupling hole may be formed in the second rotating part 212 in the same manner as in the first rotating part 211 , and the fixing bracket 213 is a bracket coupling hole of the first rotating part 211 based on the -x axis. The bracket projections of the same shape may be included at positions symmetrical to the bracket projections 213_3 inserted into the 212_5. According to an embodiment, a plurality of bracket protrusions 213_3 may be disposed on the surface of the fixing bracket 213 in the z-axis direction. For example, the plurality of bracket projections 213_3 may be disposed at each corner of the surface of the fixing bracket 213 in the z-axis direction.

7 is a diagram illustrating an example of an arm unit according to an embodiment. Prior to the description, the arm shown in FIG. 7 is a view showing the second arm with reference to FIG. 3 . The second arm part 222 has a shape similar to that of the first arm part 221 (eg, a shape symmetrical with respect to the x-axis) and may be formed of the same size and material. In the following description, the second arm part among the first arm part and the second arm part of FIG. 3 will be described as a reference.

3 and 7 , the second arm part 222 according to an embodiment is fastened to the second rotating part 212 through a second fastening part (eg, the second fastening part 252 of FIG. 3 ), and , when performing a hinge operation, it may rotate in conjunction with the second rotating part 212 . According to an embodiment, the second arm part 222 may include a basic body 222_1 , a connection part 222_2 , a third cam structure 222_4a , and a fourth cam structure 222_4b .

According to various embodiments, at least a portion of an upper surface (eg, a surface disposed to face the z-axis) of the basic body 222_1 may be formed to be flat. A connection part 222_2 may be disposed on at least a portion of a lower surface (eg, a -z-axis direction) of an upper edge (eg, an end in the y-axis direction) of the basic body 222_1 . The connection part 222_2 may be formed in a ring shape or a pipe shape having a predetermined thickness. For example, the connection part 222_2 may include a hole 222_21 opened in a third direction (eg, an x-axis direction) (or a -x-axis direction). At least a portion of the second fastening part 252 may be disposed in the hole 222_21 of the connecting part 222_2 . In this regard, the size of the hole 222_21 of the connection part 222_2 may have a size similar to the diameter of the second coupling part 252 . A third cam structure 222_4a and a fourth cam structure 222_4b are disposed on a lower surface (eg, a surface in the -z axis direction) of the lower edge (eg, the end in the -y-axis direction) of the basic body 222_1 can be The third cam structure 222_4a and the fourth cam structure 222_4b are disposed at an edge of the basic body 222_1 in the -y-axis direction, and the connection part 222_2 is connected to the basic body 222_1 in the y-axis direction. It can be placed on the edge.

According to various embodiments, the third cam structure 222_4a has a first fastening hole 222_4a1 having a uniform diameter from the x-axis to the -x-axis direction, and a first holding part 222_4a2 supporting the center bar 243c. ), a step 222_4a3 at least partially engaged with the center bracket 243a, and a first cam protrusion 222_4a4 for a cam operation.

According to various embodiments, at least a portion of the second rotation shaft 232 may be inserted into the first fastening hole 222_4a1. The first fastening hole 222_4a1 may be formed in the same or similar shape to a cross-section of one side of the second rotation shaft 232 (eg, a cross-section cut from the z-axis to the -z-axis direction). For example, at least a partial cross-section of the first fastening hole 222_4a1 (eg, a cross section of the first fastening hole 222_4a1 when the third cam structure 222_4a is cut in the z-axis to -z-axis direction) includes a straight line can do. The first fastening hole 222_4a1 may be disposed on the same axis (eg, the second axis 12 ) as the second fastening hole 222_4b1 of the fourth cam structure 222_4b.

According to various embodiments, the first mounting part 222_4a2 may protrude by a predetermined length in the -y-axis direction from one side of the peripheral portion forming the first fastening hole 222_4a1. At least a portion of the z-axis cross-section of the first mounting portion 222_4a2 may include a triangle. According to various embodiments, the size of the z-axis cross-section of the first mounting part 222_4a2 may have a shape that gradually decreases from the y-axis to the -y-axis. The upper surface (eg, the surface facing the z-axis direction) of the first mounting part 222_4a2 may be located lower than the upper surface (eg, the surface facing the z-axis direction) of the basic body 222_1 based on the z-axis. . According to an embodiment, the first mounting part 222_4a2 has an upper side (eg, a point in the z-axis direction) and a lower side (eg, one in the -z-axis direction) of the peripheral portion forming the first fastening hole 222_4a1. point) and protruding in the -y-axis direction from a side portion (eg, a point in the -y-axis direction) of the peripheral portion of the first fastening hole 222_4a1. The first mounting portion 222_4a2 may be integrated with a peripheral portion forming the first fastening hole 222_4a1. In this regard, the first mounting portion 222_4a2 may be formed of the same material as the peripheral portion of the first fastening hole 222_4a1 or the basic body 222_1 .

According to various embodiments, the step 222_4a3 is provided for easy assembly with the center bracket 243a, and may guide the center bracket 243a not to be separated until the rotation shaft is assembled. The step 222_4a3 may be formed to further protrude by a predetermined height in the x-axis direction from a side of the first fastening hole 222_4a1 in the x-axis direction. The step 222_4a3 may be disposed to surround the first fastening hole 222_4a1. In this regard, at least one of the outer circumferential surface and the inner circumferential surface of the step 222_4a3 may be circular or oval. According to various embodiments, the inner circumferential surface of the stepped 222_4a3 may have a shape corresponding to the shape of the first fastening hole 222_4a1 (eg, at least a portion of the z-axis cross-section includes a straight line). At least a portion of the step 222_4a3 may be at least partially disposed on a ring-shaped ring provided on the center bracket 243a.

According to various embodiments, the first cam protrusion 222_4a4 protrudes by a predetermined height in the -x-axis direction from the side facing the -x-axis direction among the peripheral portions of the first fastening hole 222_4a1. can be formed differently. For example, the z-axis cross-section of the first cam protrusion 222_4a4 (eg, the cross-section cut from the z-axis to the -z-axis direction) is circular or at least a portion includes a straight line, and the remaining portion includes a curve (at least some include D-cut shapes). The first cam protrusion 222_4a4 may have an uneven shape in the -x-axis direction. At least a portion of the first cam protrusion 222_4a4 having the -x-axis direction uneven shape may include a curved section. The heights of the uneven mountains may be the same in the -x-axis direction, and the depths of the uneven valleys may be the same in the x-axis direction. The central portions of the uneven mountains and valleys may include a flat region of a predetermined length.

According to various embodiments, the fourth cam structure 242_4b has a second fastening hole 222_4b1 having a uniform diameter from the x-axis to the -x-axis direction, and a second holding part 222_4b2 supporting the center bar 243c. ), a protrusion 222_4b3 at least partially engaged with the stopper 236 , and a second cam protrusion 222_4b4 for a cam operation. The fourth cam structure 222_4b may be disposed on one side of the basic body 222_1 while being spaced apart from the third cam structure 222_4a by a predetermined interval. The separation distance between the third cam structure 222_4a and the fourth cam structure 222_4b includes elastic bodies, a cam member, and a center bracket 243a disposed between the third cam structure 222_4a and the fourth cam structure 222_4b. It may vary depending on the size or shape of at least one of them.

According to various embodiments, at least a portion of the second rotation shaft 232 may be inserted into the second fastening hole 222_4b1. The second fastening hole 222_4b1 may be formed in the same or similar shape to a cross-section of one side of the second rotation shaft 232 (eg, a cross-section cut from the z-axis to the -z-axis). Accordingly, at least a partial cross section of the second fastening hole 222_4b1 (eg, a cross section cut from the z-axis to the -z-axis direction) may have the same shape as the first fastening hole 222_4a1 . The second fastening hole 222_4b1 may be disposed on the same axis (eg, the second axis 12 ) as the first fastening hole 222_4a1 of the fourth cam structure 242_4b.

According to various embodiments, the second mounting part 222_4b2 may be provided in the same or similar shape as the first mounting part 222_4a2. For example, the second mounting portion 222_4b2 is formed between an upper side (eg, a point in the z-axis direction) and a lower side (eg, a point in the -z-axis direction) of the periphery of the second fastening hole 222_4b1. , may be disposed to protrude in the -y-axis direction. According to an embodiment, similar to the first mounting part 222_4a2, the second mounting part 222_4b2 may have a shape in which the size of the protruding width gradually decreases from the z-axis to the -z-axis direction.

According to various embodiments of the present disclosure, the protrusion 222_4b3 may have a predetermined thickness and protrude by a predetermined length in the -x-axis direction on one surface of the periphery of the second fastening hole 222_4b1 in the -x-axis direction. According to an embodiment, the protrusion height of the protrusion 222_4b3 may have a height corresponding to the shape of one side of the stopper 236 . The thickness of the protrusion 222_4b3 may be the same as the width of the periphery of the second fastening hole 222_4b1 , and may have an area smaller than the width of the periphery of the second fastening hole 222_4b1 . The protrusion 222_4b3 may define a limit angle at which the second arm 222 rotates within a specified angle range (eg, within a range of 0 degrees to 100 degrees or 0 degrees to -100 degrees).

According to various embodiments, the second cam protrusion 222_4b4 may have the same or similar shape as the first cam protrusion 222_4a4. According to an embodiment, the second cam protrusion 222_4b4 may include irregularities protruding in the x-axis direction on one surface of the second fastening hole 222_4b1 that faces the x-axis direction. The second cam protrusion 222_4b4 may include at least one mountain and valley. A central portion of a mountain or a valley of the second cam protrusion 222_4b4 may be formed to be flat. The size of the central region of the mountain or valley of the second cam projection 222_4b4 (eg, the size of the flat region) may be the same as the size of the central region of the mountain or valley of the first cam projection 222_4a4. . According to various embodiments, the size of the central region of the mountain or valley of the second cam projection 222_4b4 (eg, the size of the flat region) is the first to provide the hinge force (or sense of detent) more smoothly. The size of the central region of the mountain or valley of the cam protrusion 222_4a4 may be formed differently.

According to various embodiments, the directions of the protrusions (or irregularities or mountains and valleys) of the third cam structure 222_4a and the fourth cam structure 222_4b may be different directions (eg, the -x-axis direction). Alternatively, directions of the protrusions of the third cam structure 222_4a and the fourth cam structure 222_4b may be different from each other. For example, the protrusion direction of the third cam structure 222_4a may be the -x-axis direction, and the protrusion direction of the fourth cam structure 222_4b may be the x-axis direction. According to the arrangement direction of the cam structures 222_4a and 222_4b, the direction of the cams (eg, 241a_1b, 241b_1b) may also be arranged to engage the cam structures 222_4a and 222_4b.

According to various embodiments, the second arm part 222 having the above-described structure may rotate based on the second rotation shaft 232 . One side of the first cam member 241a (eg, the second cam 241a_1b) is engaged with the third cam structure 222_4a, and one side of the second cam member 241b (eg, the fourth cam 241b_1b)) In a state in which the second elastic body 242b provides an elastic force to the second cam 241a_1b and the third cam structure 222_4a in a state in which it is disposed to be engaged with the fourth cam structure 222_4b, the fourth elastic body 242d An elastic force may be provided to the fourth cam 241b_1b and the fourth cam structure 222_4b. The third cam structure 222_4a and the fourth cam structure 222_4b may perform cam operations simultaneously or in multiple stages. According to an embodiment, the electronic device 100 divides and provides a cam structure necessary for a cam operation into the third cam structure 222_4a and the fourth cam structure 222_4b, thereby increasing the size of the elastic bodies (eg, increasing the diameter of the elastic body). ) or thickness (eg, the width of a line forming the elastic body), high elastic force can be provided without increasing the thickness of the electronic device 100 . In addition, the electronic device 100 may provide a stronger and improved (or greater) hinge force (or a sense of detent or pressure) through a high elastic force, so that a tension or stiffness or reaction force is increased (eg, a thickness is increased). Even when the increased display is used, the folded or unfolded state of the electronic device 100 may be stably provided. The electronic device 100 may more stably provide various mounting angles by using an arm including a plurality of cam structures.

On the other hand, the second arm portion 222 including the above-described third cam structure 222_4a and the fourth cam structure 222_4b has a first cam structure ( 221_4a) and the second cam structure 221_4b may have the same or similar configuration and shape to that of the first arm 221 .

8 is a view showing an example of a second rotation shaft according to an embodiment. Prior to description, the second rotation shaft shown in FIG. 8 may have the same shape and material as the first rotation shaft.

Referring to FIGS. 3 and 8 , according to one embodiment, the second rotation shaft 232 includes a pillar portion 232_1 , a shaft gear 232_2 (eg, the second shaft gear 232_2 in FIG. 3 ), and a ring mounted. It may include a groove 232_3 and a plate mounting groove 232_4. The second rotation shaft 232 has a predetermined angular range (eg, an angular range between 0 degrees and 100 degrees or 0 degrees and -100 degrees) according to the rotation of the second arm 222 with respect to the second axis 12 . can be rotated with

According to various embodiments, one end (eg, the end in the x-axis direction) of the pillar part 232_1 is fastened to one side of the fixing bracket 213 , and the other end (eg, the end in the -x-axis direction) is fixed. It can be fastened with a clip (eg 291_2). The pillar part 232_1 may have a bar shape in which the x-axis direction is relatively longer than the y-axis direction. At least a portion of the z-axis cross-section (eg, a cross-section cut from the z-axis to the -z-axis) of the pillar part 232_1 may include a curve, and the remaining part may include a straight line. For example, at least a portion of one surface in the z-axis direction and at least a portion of one surface in the -z-axis direction of the pillar part 232_1 have a cross-section (eg, a cross-section cut from the z-axis to the -z-axis direction) in a straight line, , at least a portion of one surface in the y-axis direction and at least a portion of one surface in the -y-axis direction may be formed in a curved shape. Accordingly, at least a portion of the upper portion of the pillar portion 232_1 in the z-axis direction or the -z-axis direction may form a flat surface, and at least a portion of the side surface in the y-axis direction or the -y-axis direction may form a curved surface. The total length of the pillar part 232_1 may vary according to the components inserted into the second rotation shaft 232 . For example, in the pillar part 232_1 , one side of the rotation shaft support member 235 , one side of the stopper 236 , the first fastening hole 222_4a1 of the third cam structure 222_4a , and the fourth cam structure 222_4b 2 fastening holes 222-_4b1, second cam 241a_1b, fourth cam 241b_1b, second elastic body 242b, fourth elastic body 242d, one side of center bracket 243a, shaft bracket 243b One side of the support rings (292_1, 292_2), the fixing clip may be coupled.

According to various embodiments, the shaft gear 232_2 may be disposed to be biased toward an end of the column part 232_1 in the x-axis direction. The shaft gear 232_2 has a cross section larger than a z-axis cross-section (eg, a cross-section cut in the z-axis to -z-axis direction) of the pillar part 232_1 , and a gear may be formed on an outer peripheral surface of the shaft gear 232_2 . The shaft gear 232_2 may be disposed to mesh with an idle gear (eg, 234 ). The shaft gear 232_2 may be disposed between the end of the column part 232_1 in the x-axis direction and the plate mounting groove 232_4 .

According to various embodiments, the plate mounting groove 232_4 may be formed on one side of an upper surface (eg, at least a portion of a surface facing the z-axis direction) of the pillar part 232_1 . At least a portion of the rotation shaft support member 235 may be mounted in the plate mounting groove 232_4 . The plate mounting groove 232_4 may be engraved on one surface of the upper surface of the pillar part 232_1 to be lower than the periphery. The plate mounting groove 232_4 may be disposed such that the rotation shaft support member 235 surrounds the idle gear 234 and the shaft gear 232_2 .

According to various embodiments, the ring mounting groove 232_3 may be disposed to be biased in the -x-axis direction of the pillar part 232_1 . For example, the ring mounting groove 232_3 is formed at a position spaced apart from the end of the column part 232_1 in the -x-axis direction by a predetermined distance in the x-axis direction and has a lower height than the periphery, and the circumference of the column part 232_1 may be formed throughout. Accordingly, the ring mounting groove 232_3 may be provided in the shape of an engraved band of the pillar portion 232_1 . For example, the fixing clip (eg, 292_2) may be inserted into the ring mounting groove 232_3.

Meanwhile, although the second rotation shaft 232 has been described in the above description, the first rotation shaft 231 may also have the same configuration and material as the second rotation shaft 232 . For example, the first rotation shaft 231 includes a pillar portion, a shaft gear, a ring mounting groove, and a plate mounting groove, and the second shaft 11 is spaced apart from the second shaft 12 by a predetermined distance. It may rotate in a direction opposite to the rotation shaft 232 .

9 is a diagram illustrating an example of a stopper configuration according to various embodiments of the present disclosure;

Referring to FIG. 9 , according to an embodiment, the stopper 236 prevents the first arm 221 and the second arm 222 from being rotated by more than a specified angle or when a pressure outside the specified angular range is applied. , can support that pressure. The stopper 236 includes a stopper body 236_1 , a first shaft insertion hole 236a into which at least a portion of the first rotation shaft 231 is inserted, and a second shaft insertion hole into which at least a portion of the second rotation shaft 232 is inserted. (236b).

According to various embodiments, the stopper body 236_1 is formed to protrude more in the fourth direction (eg, -x-axis direction) than the surfaces of the first shaft insertion hole 236a and the second shaft insertion hole 236b. can be The stopper body 236_1 limits the rotation range of the first arm part 221 while the first arm part 221 rotates, and increases the rotation range of the second arm part 222 while the second arm part 222 rotates. It can be arranged to limit.

According to various embodiments of the present disclosure, the stopper 236 includes a first periphery 236a1 forming the first shaft insertion hole 236a and a first step 236a2 limiting the rotation range of the first arm 221 . may include The first hole peripheral portion 236a1 may have a band shape in which the first shaft insertion hole 236a1 is formed in the center thereof. The first step 236a2 may be formed to further protrude from the -x-axis direction surface of the first hole peripheral portion 236a1 in the -x-axis direction. The first step 236a2 may be disposed to cover, for example, a predetermined surface (eg, half) of the first hole peripheral portion 236a1 . The size of the first step 236a2 formed on the first hole peripheral portion 236a1 may vary greatly depending on the rotation design range of the first arm portion 221 . For example, when the rotation range of the first arm part 221 is designed to be relatively larger, the surface on which the first step 236a2 is disposed on the first hole peripheral part 236a1 is designed to be smaller, and on the contrary, the first arm part When the rotation range of 221 is designed to be relatively smaller, the surface on which the first step 236a2 is disposed on the periphery of the first hole 236a1 may be designed to be larger.

According to various embodiments, the stopper 236 is a second step 236b2 for limiting the rotation range of the second hole peripheral portion 236b1 forming the second shaft insertion hole 236b and the second arm portion 222 . may include The second hole peripheral portion 236b1 may be disposed symmetrically with the first hole peripheral portion 236a1 in the y-axis direction with respect to an axis (or an imaginary axis) transverse to the x and -x axes of the stopper body 236_1. can The second shaft insertion hole 236b, the second hole peripheral portion 236b1 and the second stepped portion 236b2 are formed in the first shaft insertion hole 236a, the first hole peripheral portion 236a1, and the first stepped portion. It may have the same or similar form as (236a2). The second step 236b2 may limit the rotation range of the second arm 222 .

According to various embodiments, a portion of the first hole peripheral portion 236a1 and the second hole peripheral portion 236b1 is larger in the z-axis direction than an upper surface (eg, a surface in the z-axis direction) of the stopper body 236_1. It may be arranged to protrude. Accordingly, at least a portion of the first rotation shaft 231 and the second rotation shaft 232 inserted into the first shaft insertion hole 236a and the second shaft insertion hole 236b is a stopper body ( 236_1) may be disposed above.

10 is a view showing an example of a center bracket according to various embodiments.

3 and 10 , the center bracket 243a according to an embodiment supports the center bar 243c and is involved in the z-axis movement of the center bar 243c (eg, the movement of the center bar 243c). to guide the range). The center bracket 243a may include a center body 243a3 , a first bracket wing part 243a1 , and a second bracket wing part 243a2 .

According to various embodiments, the center body 243a3 has a predetermined thickness in the z-axis direction and an elongated shape in the x-axis direction as the x-axis or -x-axis direction is relatively larger than the y-axis direction. can The center body 243a3 has a bottom surface (eg, a surface in the -z-axis direction) to correspond to an adjacent elastic body (eg, the third elastic body 242c and the fourth elastic body 242d) and the first cam member 241a. ), the upper surface (eg, the surface in the z-axis direction) may be formed narrower, the edge may have a certain inclination angle, and may have a curved shape from the bottom to the upper surface. The center body 243a3 is opened in the z-axis direction and has a center coupling hole 243a3_1 coupled to a boss formed in the center bar 243c, and the center coupling hole 243a3_1, which is opened in the same direction and formed on one side of the hinge housing. It may include a housing coupling hole 243a3_2 coupled to the boss. The center coupling hole 243a3_1 and the housing coupling hole 243a3_2 may be disposed to be spaced apart from each other by a predetermined distance.

According to various embodiments, the first bracket wing portion 243a1 may be formed to protrude from the central region of the center body 243a3 in the y-axis direction. The first bracket wing portion 243a1 may include a first bracket wing 243a1_1 and a first bracket hole 243a1_2 . The first bracket wing 243a1_1 may have a circular band shape such that a first bracket hole 243a1_2 is formed in the center thereof. The first bracket wing 243a1_1 may have a step formed around the first bracket hole 243a1_2. A portion of the cam structures (eg, the stepped 222_4a3 ) formed in the first arm 221 may be disposed on the step formed around the first bracket hole 243a1_2 . The first bracket hole 243a1_2 may be opened in a direction perpendicular to an opening direction of the center coupling hole 243a3_1 or the housing coupling hole 243a3_2 . The size of the first bracket hole 243a1_2 may be the same as or similar to the thickness of the first rotation shaft 231 . Alternatively, the shape (eg, circular) of the first bracket hole 243a1_2 is different from the shape of the first rotation shaft 231 (eg, a closed curve including some curves and some straight lines), and the diameter of the first bracket hole 243a1_2 may have a larger diameter than the diameter of the first rotation shaft 231 .

According to various embodiments, the second bracket wing portion 243a2 may be formed to protrude from the central region of the center body 243a3 in the -y-axis direction opposite to the first bracket wing portion 243a1. . The second bracket wing portion 243a2 may include a second bracket wing 243a2_1 and a second bracket hole 243a2_2 . The second bracket wing 243a2_1 may have a circular band shape such that a second bracket hole 243a2_2 is formed in the center thereof. The second bracket wing 243a2_1 is similar to the first bracket wing 243a1_1, a step is formed on one side (eg, the inner peripheral portion where the second bracket hole 243a2_2 is formed), and the second arm part ( Some of the cam structures (eg, the stepped 222_4a3) formed on the 222 may be disposed. The second bracket hole 243a2_2 may be opened in the same direction as the first bracket hole 243a1_2 . The second bracket hole 243a2_2 may be formed in the same manner as the first bracket hole 243a1_2, and a z-axis cross-section (eg, a cross-section cut from the z-axis to the -z-axis direction) and a portion of the second rotation shaft 232 . can be formed differently. A second rotation shaft 232 is inserted inside the second bracket hole 243a2_2 , and the second rotation shaft 232 may rotate within the second bracket hole 243a2_2 .

11 is a view showing an example of a shaft bracket according to various embodiments.

3 and 11 , the shaft bracket 243b according to an embodiment is coupled to the first rotation shaft 231 and the second rotation shaft 232 , and the first rotation shaft 231 and the second rotation shaft 232 are combined. ) can play a role in fixing The shaft bracket 243b includes holes into which the first rotation shaft 231 and the second rotation shaft 232 are respectively inserted, and supports the elastic body (eg, the first elastic body 242a and the second elastic body 242b). can play a role The shaft bracket 243b may include a shaft bracket body 243b3, a first shaft blade 243b1, and a second shaft blade 243b2.

According to various embodiments, the shaft bracket body 243b3 may be formed so that the length of the x-axis and the y-axis is longer than the length of the z-axis. For example, the overall shape of the shaft bracket body 243b3 may have a rectangular shape having a certain thickness. The side portions (eg, the y-axis edge and the -y-axis edge) of the shaft bracket body 243b3 may have a shape in which the size of the entire surface is gradually reduced from the bottom to the top surface. Alternatively, at least a portion of the side of the shaft bracket body 243b3 has a cross-section (eg, a cross-section cut from the z-axis to the -z-axis) inward (eg, from the y-axis to the -y-axis direction or from the -y-axis to the y-axis direction). It may have a curved curved shape. One side of the first elastic body 242a and the second elastic body 242b may be disposed adjacent to the side of the shaft bracket body 243b_3. One edge (eg, -x-axis edge) of the shaft bracket body 243b3 may include protrusions 243b3_1 and 243b3_2 that protrude in the -x-axis direction and are spaced apart from each other at regular intervals on the y-axis. A locking part protruding in the -z-axis direction from the end of the center bar 243c may be fastened to the valley 243b3_3 between the protrusions 243b3_1 and 243b3_2 spaced apart from each other. A coupling hole 243b3_4 coupled to a boss formed in the hinge housing 150 may be disposed inside the shaft bracket body 243b3. The coupling hole 243b3_4 may be disposed to be opened in the z-axis direction, for example.

According to various embodiments, the first shaft wing 243b1 extends to one side of the shaft bracket body 243b3 (eg, one side of the y-axis edge among the -x-axis edges), and the first rotation shaft 231 is located at the center The first shaft insertion hole 243b1_1 to be inserted may have a ring shape. The first axis insertion hole 243b1_1 may be formed in a direction (eg, an x-axis or -x-axis direction) perpendicular to a direction in which the coupling hole 243b3_4 is opened. The size of the first shaft insertion hole 243b1_1 may be similar to or larger than the circumference of the first rotation shaft 231 .

According to various embodiments, the second axial blade 243b2 may be disposed symmetrically with the first axial blade 243b1 with respect to the x-axis. For example, the second shaft wing 243b2 extends to one side of the shaft bracket body 243b3 (eg, one side of the -y-axis edge among the -x-axis edges), and the second rotation shaft 232 is inserted into the center of the second shaft wing 243b3. The shaft insertion hole 243b2_1 may have a ring shape formed therein. The second shaft insertion hole 243b2_1 may be opened in the same direction as the first shaft insertion hole 243b1_1 . The size of the second shaft insertion hole 243b2_1 may be similar to or larger than the circumference of the second rotation shaft 232 . The first axial wing 243b1 and the second axial wing 243b2 may be arranged in parallel on the y-axis.

12 is a view illustrating an example of a cam member according to various embodiments of the present disclosure; Prior to the description, the cam member shown in FIG. 12 is a first cam member 241a disposed between the shaft bracket 243b and the center bracket 243a or a second cam member 241a disposed between the center bracket 243a and the stopper 236 . It may be at least one of the cam members 241b. In the following description, the first cam member 241a will be described as a reference.

3 and 12 , the first cam member 241a includes a cam body 241a_1, a first cam 241a_1a, a second cam 241a_1b, a first cam hole 241a_2a, and a second cam hole ( 241a_2b) may be included. A first cam 241a_1a and a second cam 241a_1b may be disposed at both edges of the cam body 241_1. The cam body 241a_1 may be disposed between the center body 243a3 of the center bracket 243a and the shaft bracket body 243b_3 of the shaft bracket 243b.

According to various embodiments, the first cam 241a_1a may have peaks and valleys disposed in the x-axis direction, and a first cam hole 241a_2a may be formed in the center to allow the first rotation shaft 231 to pass therethrough. The first cam 241a_1a may be disposed to be engaged with the first cam structure 221_4a of the first arm 221 . One side of the first elastic body 242a may be in contact with the surface of the first cam 241a_1a in the -x-axis direction.

According to various embodiments, the second cam 241a_1b may be disposed in the same direction as the first cam 241a_1a, and may be disposed to be spaced apart from the first cam 241a_1a by the y-axis length of the cam body 241_1. there is. The second cam 241a_1b is disposed to be engaged with the third cam structure 222_4a of the second arm part 222, and the second elastic body 242b is in contact with the surface of the second cam 241a_1b in the -x-axis direction. can be A second cam hole 241a_2b may be formed in the center of the second cam 241a_1b so that the second rotation shaft 232 can be inserted.

According to various embodiments, the first cam member 241a includes a first cam structure 221_4a and a second cam structure ( 222_4a) retracts in the -x-axis direction and then rotates further, the first cam member 241a is the first cam structure 221_4a of the first arm part 221 and the second arm part 222 and the second The cam structure 221_4b is disposed so that the peaks and valleys are engaged, and in this process, the first elastic body 242a and the second elastic body 242b move in the x-axis direction due to the elasticity, thereby returning to the original position.

According to various embodiments, as mentioned above, the cam member shown in FIG. 12 may be the second cam member 241b. In this case, the first cam 241a_1a of the first cam member 241a is disposed to be engaged with the first cam structure 221_4a of the first arm 221 , and the second cam (241a_1a) of the first cam member 241a While 241a_1b is disposed to engage with the third cam structure 222_4a of the second arm portion 222 , the third cam 241b_1a of the second cam member 241b engages the second cam structure of the first arm portion 221 . The fourth cam 241b_1b of the second cam member 241b may be disposed to engage with the 221_4b , and may be disposed to mesh with the fourth cam structure 222_4b of the second arm part 222 . In relation to the cam operation of the second cam member 241b, the third elastic body 242c and the fourth elastic body 242d may provide an elastic force to the second cam member 241b.

As described above, the cam structures and the cams engaged with the cam structures according to an embodiment of the present invention have two cam structures formed on the first arm 221 and two cam structures formed on the second arm 222 . By being disposed to engage with the two cam members 241a and 241b at the same time, it is possible to provide a stronger and stronger sense of detent. Alternatively, the cam structures and the cams engaged with the cam structures according to various embodiments of the present invention are stronger and stronger based on a stronger elastic force based on the four elastic bodies 242a, 242b, 242c, 242d. can provide a sense. In this process, a plurality of cam structures and cams are provided, thereby providing a higher hinge force (or detent capability (or stronger detent capability)) without increasing thickness or size, while providing improved wear resistance to the cam operation process. can provide

13 is a view illustrating an example of support rings according to various embodiments.

Referring to FIG. 13 , the support rings 292_1 and 292_2 according to an embodiment include a first support ring 292_1 coupled to the first rotation shaft 231 and a second support ring coupled to the second rotation shaft 232 ( 292_2) may be included.

According to various embodiments, the first support ring 292_1 includes a first ring hole 292_1b into which the first rotation shaft 231 is inserted, and a first ring body 292_1a forming the first ring hole 292_1b. may include The first ring body 292_1a may have a first ring hole 292_1b disposed at a center thereof and may have a ring shape as a whole. The first ring body 292_1a may include a first support protrusion 292_1c protruding in the -y-axis direction from one side of the outer circumferential surface. The first support protrusion 292_1c may have a shape (eg, a triangular shape) that decreases in width as it moves away from the first ring body 292_1a. At least a portion of the upper surface (surface facing the z-axis) of the first support protrusion 292_1c is formed to be flat, and at least a portion of the lower cross-section (eg, a cross-section cut from the z-axis to the -z-axis direction) includes a curve. can The first support protrusion 292_1c may support one side of the center bar 243c while the first arm part 221 and the second arm part 222 are disposed in parallel on the y-axis. The first ring hole 292_1b may have the same or similar cross-section to the z-axis cross-section of the first rotation shaft 231 (eg, a cross-section cut from the z-axis to the -z-axis direction). For example, in the first ring hole 292_1b, at least a portion of the z-axis section (eg, a section cut in the z-axis to -z-axis direction) may include a straight section, and the remaining section may include a circular section. Alternatively, the first ring hole 292_1b may have a shape in which a z-axis cross-section (eg, a cross-section cut from the z-axis to the -z-axis direction) is alternately arranged with a straight section and a circular section. Accordingly, when the first rotation shaft 231 rotates in one direction, the first support ring 292_1 may rotate in the same direction as the first rotation shaft 231 .

According to various embodiments, the second support ring 292_2 includes a second ring hole 292_2b into which the second rotation shaft 232 is inserted, and a second ring body 292_2a forming the second ring hole 292_2b. may include A second support protrusion 292_2c may be disposed on one side of the second ring body 292_2a. The second ring hole 292_2b may have the same or similar shape as the first ring hole 292_1b. Alternatively, the second ring hole 292_2b may be provided in the same or similar shape to the z-axis cross-section of the second rotation shaft 232 (eg, a cross-section cut from the z-axis to the -z-axis direction). The second ring body 292_2a may have the same or similar shape as the first ring body 292_1a. The second support protrusion 292_2c may be disposed to protrude in the y-axis direction from one side of the second ring body 292_2a. The shape of the second support protrusion 292_2c is similar to the first support protrusion 292_1c, and the size of at least a portion of the cross-section (eg, a cross-section cut from the z-axis to the -z-axis direction) is gradually reduced (eg, a triangular shape) can be provided as In a state in which the first arm part 221 and the second arm part 222 are parallel to the y-axis (eg, the display of the electronic device is unfolded), the protrusion tip of the second support protrusion 292_2c is connected to the first support protrusion ( 292_1c) may be disposed to face the protrusion. Accordingly, when the electronic device is in an unfolded state, the second support protrusion 292_2c may support one side of the center bar 243c similarly to the first support protrusion 292_1c.

14 is a view for explaining a first state of some components of an electronic device according to various embodiments of the present disclosure;

1, 3, and 14 , some components of the electronic device 100 include a first hinge structure 200a and a display 160 , and the first hinge structure 200a and the display 160 . may have a first state (eg, an expanded state). Prior to description, the diagram shown in FIG. 14 may correspond to the shape of the second hinge structure 200b and the display 160 depending on the viewing angle.

*127According to various embodiments, the first hinge structure 200a may include a first rotation part 211 , a second rotation part 212 , a fixing bracket 213 , a first arm part 221 , and a second arm part 222 . , the first rotation shaft 231 and the second rotation shaft 232 , the idle gears 233 and 234 , the first cam member 241a , the second cam member 241b , the first elastic body 242a , the second It may include an elastic body 242b, a third elastic body 242c, a fourth elastic body 242d, a center bracket 243a, and a shaft bracket 243b. The first rotating part 211 may be connected to the first arm part 221 through the first coupling part 251 . The second rotating part 212 may be connected to the second arm part 222 through the second fastening part 252 .

According to various embodiments, while the first rotating part 211 and the second rotating part 212 maintain the unfolded state, the display 160 may maintain the unfolded state. The first arm 221 may rotate within a specified angular range with respect to the first rotational shaft 231 (eg, within a range of 0 degrees to 100 degrees or 0 degrees to 95 degrees). The second arm 222 may rotate within a specified angular range with respect to the second rotation shaft 232 . The first rotating unit 211 may rotate with respect to the third axis 13 within a similar or identical angular range to that of the first arm unit 221 . The second rotating unit 212 may rotate with respect to the fourth axis 14 within a similar or the same angular range as the second arm unit 222 . The third axis 13 may be formed to be higher in the display 160 direction (eg, the z-axis direction) than the first rotation axis 231 . The fourth axis 14 may be formed to be higher in the display 160 direction (eg, the z-axis direction) than the second rotation axis 232 . The interval between the third shaft 13 and the fourth shaft 14 may be shorter than the interval between the first rotation shaft 231 and the second rotation shaft 232 . According to various embodiments, the third axis 13 and the fourth axis 14 may be formed side by side on a horizontal axis (eg, a y axis). According to an embodiment, the third axis 13 and the fourth axis 14 are formed on the same layer as the display 160 , or above the display 160 (eg, above the display 160 ). ) can be formed. For example, the third axis 13 and the fourth axis 14 may be virtual axes.

According to various embodiments, while the first rotating unit 211 and the second rotating unit 212 maintain the unfolded state, the first bracket body 211_1 of the first rotating unit 211 and the second rotating unit 212 are The two bracket bodies 212_1 may be arranged side by side. According to one embodiment, based on the illustrated drawing, the upper surface of the first bracket body 211_1 and the upper surface of the second bracket body 212_1 may be arranged to face the same upper side (eg, in the z-axis direction). there is. According to one embodiment, while the first rotating part 211 and the second rotating part 212 maintain the unfolded state, the first arm part 221 and the second arm part 222 are also arranged side by side, and accordingly, The first basic body 221_1 of the first arm 221 and the second basic body 222_1 of the second arm 222 may be disposed to face the same direction (eg, the z-axis direction based on the illustrated drawing). there is. Accordingly, the first bracket body 211_1, the second bracket body 212_1, the first basic body 221_1, and the second basic body 222_1 are all arranged side by side with respect to the horizontal axis, as shown in the drawing All of them may be arranged to face the same upward direction. The first bracket body 211_1 , the second bracket body 212_1 , the first basic body 221_1 , and the second basic body 222_1 may support the rear surface of the display 160 without a difference in height.

According to various embodiments, a gap between the hinge structures 200a and 200b and a predetermined gap may be formed in the central portion where the display 160 is bent. An adhesive layer may be disposed between a peripheral area (eg, the first portion 161 or the second portion 162 ) other than the central portion 163 of the display 160 and the hinge structures 200a and 200b.

According to various embodiments, in the first state (eg, the display 160 is unfolded), the peaks and valleys of the first cam 241a_1a of the first cam member 241a are the peaks and valleys of the first cam structure 221_4a. are respectively disposed to engage the peaks, and the peaks and valleys of the second cam 241a_1b of the first cam member 241a are respectively arranged to engage the valleys and peaks of the third cam structure 222_4a, respectively, and the second cam member 241b ), the peaks and valleys of the third cam 241b_1a are disposed to mesh with the valleys and valleys of the second cam structure 221_4b, respectively, and the peaks and valleys of the fourth cam 241b_1b of the second cam member 241b are the fourth The cam structure may be disposed to be engaged with the valleys and mountains of the cam structure 222_4b, respectively.

15 is a view for explaining a first angular state of a partial structure of an electronic device according to various embodiments of the present disclosure;

1, 3, and 15 , the first hinge structure 200a (or the second hinge structure 200b) is in a first angular state (eg, the first rotating part 211 and the second rotating part 212 ). The upper surface (plane in the z-axis direction) of the horizontal axis (y-axis) and an angle formed by 30 degrees) may include. As described above, the first hinge structure 200a includes a first rotating part 211 , a second rotating part 212 , a fixing bracket 213 , a first arm part 221 , a second arm part 222 , and a first Cam member 241a, second cam member 241b, first elastic body 242a, second elastic body 242b, third elastic body 242c, fourth elastic body 242d, first rotation shaft 231, first It may include two rotating shafts 232 , a center bracket 243a and a shaft bracket 243b . The first rotating part 211 may be connected to the first arm part 221 through the first coupling part 251 . The second rotating part 212 may be connected to the second arm part 222 through the second fastening part 252 .

According to various embodiments, the first housing (eg, the first housing 110 of FIG. 1 ) to which the first rotating part 211 is fixed by the action of external pressure or the second housing to which the second rotating part 212 is fixed ( Example: Based on the drawing in which the second housing 120 of FIG. 1) is shown, a certain angle (eg, 5 degrees, 10 degrees) in the direction of a vertical axis (eg, z-axis) from a point on a horizontal axis (eg, y-axis) , can be rotated by a certain unit angle, such as 15 degrees). For example, the first rotation unit 211 connected to the first housing 110 may have a first angle in a vertical axis (eg, z-axis) direction at a point on a horizontal axis (eg, y-axis) with respect to the third axis 13 . It can be rotated by (eg 30 degrees). When the first rotating part 211 rotates by the first angle by the external pressure, the corresponding pressure may be transmitted to the first arm part 221 through the first coupling part 251 . Accordingly, the first arm 221 may rotate by a first angle in a vertical axis (eg, z-axis) direction on a horizontal axis (eg, y-axis) with respect to the first rotational axis 231 . In this operation, the first cam structure 221_4a and the second cam structure 221_4b may rotate according to the rotation operation of the first arm part 221 . The first rotation shaft 231 inserted into the first cam structure 221_4a and the second cam structure 221_4b rotates by the force transmitted according to the rotation of the first cam structure 221_4a and the second cam structure 221_4b, and , while the first rotation shaft 231 rotates, the first shaft gear (eg, 231_2 of FIG. 3 ) of the first rotation shaft 231 may rotate. As the first shaft gear rotates, the first idle gear 233 and the second idle gear 234 geared to the first shaft gear rotate, and as a result, the second shaft geared to the second idle gear 234 . As the gear 232_2 rotates, the second rotation shaft 232 may rotate. As the second rotation shaft 232 rotates, the third cam structure 222_4a and the fourth cam structure 242_4b rotate, and as the third cam structure 222_4a and the fourth cam structure 222_4b rotate, the second arm part 222 rotates, and according to the rotation of the second arm part 222 , the second rotation part 212 connected through the second fastening part 252 may rotate. In the above description, the operation of simultaneously rotating the second rotating unit 212 while being applied to the external pressure to the first rotating unit 211 has been described, but the present invention is not limited thereto. For example, when an external pressure is applied to the second rotating unit 212, the second arm unit 222 connected through the second fastening unit 252 rotates, and the second rotating shaft 232 connected to the second arm unit 222, The second idle gear 234 connected to the second rotation shaft 232 , the first idle gear 233 connected to the second idle gear 234 , the first rotation shaft 231 connected to the first idle gear 233 , the first A first arm 221 having a first cam structure 221_4a and a second cam structure 221_4b connected to one rotation shaft 231 , and a first connected through the first arm unit 221 and the first coupling unit 251 . The rotating part 211 may rotate. Alternatively, when pressure is applied from the outside at the same time to the first rotating unit 211 and the second rotating unit 212 , the first arm unit 221 and the second arm unit 222 may rotate at a predetermined angle at the same time.

As described above, the first hinge structure 200a may have a structure in which the first rotation unit 211 and the second rotation unit 212 simultaneously rotate according to an externally applied pressure (or force). Accordingly, even if external pressure is generated in the second housing 120 to which the second rotation unit 212 is connected or is simultaneously generated in the first housing 110 and the second housing 120 , the first rotation unit 211 and the second rotation unit 211 . The two rotating parts 212 may rotate simultaneously. As the electronic device 100 according to an embodiment rotates simultaneously, twisting of the first housing 110 and the second housing 120 may be suppressed, and a stable hinge operation may be performed.

According to one embodiment, the axes 13 and 14 of the first rotating part 211 and the second rotating part 212 are the first and second rotating shafts 231 and 231 of the first arm part 221 and the second arm part 222 . By being disposed between the rotation shafts 232 , the rotation amount of the first rotation part 211 and the rotation amount of the first arm part 221 may be different for each rotation timing. Accordingly, the upper surface of the first bracket body 211_1 of the first rotating part 211 is rotated more with respect to the vertical axis (eg, the z-axis) than the upper surface of the basic body 221_1 of the first arm part 221 . can have status. As the first rotation part 211 and the first arm part 221 are connected through the first coupling part 251 , while the first rotation part 211 rotates, the first coupling part 251 is the first rotation part It may be slid by a predetermined distance along the first slide hole 211_2 of the 211 . Similarly, the upper surface of the second bracket body 212_1 may have a more rotated state with respect to a vertical axis (eg, z-axis) than the second basic body 222_1 . In addition, as the second rotating part 212 and the second arm part 222 are connected through the second fastening part 252 , while the second rotating part 212 rotates, the second fastening part 252 is connected to the second It may slide by a predetermined distance along the second slide hole 212_2 of the rotating part 212 .

As described above, in a state in which the display 160 of the electronic device 100 is folded at a specific angle (eg, the angle between the upper surface of the display 160 and the horizontal axis is 30 degrees or -30 degrees), the first arm part ( 221) As the first cam structure 221_4a rotates, among the slopes between the peaks and valleys of the first cam structure 221_4a, the slope closer to the mountain side is toward the mountain side among the slopes between the mountain and the valley of the first cam 241a_1a of the first cam member 241a. Among the slopes between the mountains and the valleys of the second cam structure 221_4b, the slopes closer to the mountain side are in contact with the close slopes, and the slopes between the mountains and the valleys of the third cam 241b_1a of the second cam member 241b Among the parts, it may have a state in contact with a slope close to the mountain side. Similarly, as the second arm portion 222 rotates, among the slopes between the peaks and valleys of the third cam structure 222_4a, the slopes closer to the mountain side are the peaks of the second cams 241a_1b of the first cam member 241a. Among the slopes between the valleys, the slopes close to the mountain side are in contact with the slopes close to the mountain side, and among the slopes between the mountains and the valleys of the fourth cam structure 222_4b, the slopes close to the mountain side are the fourth cams ( 241b_1b), among the slopes between the mountains and valleys, may have a contact state with the slopes close to the mountain side.

16 is a view for explaining a second angular state of a first hinge structure according to various embodiments of the present disclosure;

1, 3, and 16 , the first hinge structure 200a may include a second angular state. The first hinge structure 200a may include, for example, a first rotation part 211 , a second rotation part 212 , a fixing bracket 213 , a first arm part 221 , a second arm part 222 , and a gear structure 230 . , first cam member 241a, second cam member 241b, first elastic body 242a, second elastic body 242b, third elastic body 242c, fourth elastic body 242d, first rotation shaft 231 ), a second rotation shaft 232 , a center bracket 243a and a shaft bracket 243b may be included. The first rotating part 211 is connected to the first arm part 221 through the first coupling part 251 , and the second rotating part 212 is connected to the second arm part 222 through the second coupling part 252 . can be connected

According to various embodiments, the first housing (eg, the first housing 110 of FIG. 1 ) or the second housing (eg, the second housing 120 of FIG. 1 ) is illustrated by an external pressure (or force) acting It can be rotated by a second angle (eg, 60 degrees) in the vertical axis (eg, z-axis) direction from one point of the horizontal axis (eg, the y-axis) based on the illustrated drawing. For example, when an external pressure or force is transmitted to the first housing 110 or the second housing 120 , the first rotating part 211 or the second rotating part 212 is the third shaft 13 or the fourth shaft Based on (14), the horizontal axis (eg, the y-axis) may be rotated by a second angle (eg, 60 degrees) in the vertical axis (eg, the z-axis) direction at one point. In the process of performing the above-described operation, the applied force is applied through the first arm part 221 or the second arm part 222 , the first rotation shaft 231 and the second rotation shaft 232 , and the idle gears 233 and 234 . As they are transmitted to each other, the first rotating unit 211 , the second rotating unit 212 , the first arm unit 221 , and the second arm unit 222 may rotate at the same time.

According to various embodiments of the present disclosure, as the first rotating part 211 and the second rotating part 212 rotate at a second angle, the first coupling part 251 and the second coupling part 252 are connected to the first slide hole 211_2 ) and a slide operation within the second slide hole 212_2, but may be positioned closer to a vertical axis (eg, z-axis) than a state rotated at the first angle. In the above-described operation process, the first rail 211_3 of the first rotating part 211 rotates in the left outward direction from the center of the fixing bracket 213 based on the illustrated drawings, and the second rotating part 212 is rotated in the left outward direction. of the second rail 212_3 may rotate from the center of the fixing bracket 213 to the right outward direction. As the rotating axes of the first rotating part 211 and the first arm 221 are different from each other and the rotating axes of the second rotating part 212 and the second arm 222 are different from each other, the first bracket body 211_1 ), the distance between the upper surface of the second bracket body 212_1 is greater than the distance between the upper surface of the first basic body 221_1 and the upper surface of the second basic body 222_1 on a vertical axis (eg, z axis) may be placed closer to the

As described above, in a state in which the display 160 of the electronic device 100 is folded at a specific angle (eg, the angle between the upper surface of the display 160 and the horizontal axis is 60 degrees or -60 degrees), the first arm part ( 221) with rotation, at least a portion of the mountain of the first cam structure 221_4a is in contact with at least a portion of the mountain of the first cam 241a_1a of the first cam member 241a, and the second cam structure ( At least a portion of the mountain of 221_4b may be in contact with the mountain of the third cam 241b_1a of the second cam member 241b. Similarly, as the second arm portion 222 rotates, at least a portion of the mountain of the third cam structure 222_4a is in contact with the mountain of the second cam 241a_1b of the first cam member 241a, and the fourth At least a portion of the mountain of the cam structure 222_4b may be in contact with the mountain of the fourth cam 241b_1b of the second cam member 241b.

In the above description, in the first angular state, the inclined portion adjacent to the mountain of the cam structure is described as being in contact with the inclined portion adjacent to the hill of the cam, and in the second angular state, at least a portion of the mountain of the cam structure is formed by the cam It has been described as having a state in contact with the acid of, but is not limited thereto. For example, in the electronic device 100, in more various angular states (eg, the angle between the upper surface of one side of the display and the horizontal axis is free-stop due to friction between the cam structure and the cam, or various angles, for example, in units of 1 degree or units of 5 degrees) or 15 degrees, 30 degrees, 45 degrees, 60 degrees, etc.), and for each angular state, the contact portion between the slope between the mountain and the valley of the cam structure and the slope between the mountain and the valley of the cam may be different. Alternatively, the size of a contact area between the mountain of the cam structure and the mountain of the cam may be different for each angular state.

17 is a view for explaining a second state of some structures of an electronic device according to various embodiments of the present disclosure;

1, 3, and 17 , the electronic device 100 may include a first hinge structure 200a and a display 160 . The second state of the first hinge structure 200a may include a folded state. The first hinge structure 200a may include, for example, a fixing bracket 213 , a first rotation part 211 , a second rotation part 212 , a first arm part 221 , a second arm part 222 , and a first fastening part ( 251 , the second coupling part 252 , the first rotation shaft 231 , the second rotation shaft 232 , the shaft gears of the first rotation shaft 231 and the second rotation shaft 232 , and the idle gears 233 . , 234), first cam member 241a, second cam member 241b, first elastic body 242a, second elastic body 242b, third elastic body 242c, fourth elastic body 242d, center bracket (243a) and may include a shaft bracket (243b).

According to an embodiment, the first rotating part 211 and the second rotating part 212 may be disposed to face each other. Based on the illustrated drawing, as the edge ends of the first housing 110 and the second housing 120 (eg, the end in the z-axis direction in reference to FIG. 17) are disposed adjacent to each other, in the illustrated drawing, the The first rotation unit 211 is disposed parallel to a vertical axis (eg, the z-axis), or the first rotation unit 211 rotates based on the third axis 13, and rotates based on a vertical axis (eg, the z-axis) , it may be disposed to be more inclined by an angle specified in the -y-axis direction. According to various embodiments, the second rotating unit 212 is disposed parallel to a vertical axis (eg, z-axis) similarly to the first rotating unit 211 or rotates based on the fourth axis 14, but a vertical axis (eg, a vertical axis) : The z-axis) may be further inclined by a specified angle in the y-axis direction. The third shaft 13 may be, for example, a central axis of rotation of the first rail 211_3 , and the fourth shaft 14 may be a central axis of rotation of the second rail 212_3 . The first arm 221 is rotated based on the first rotation shaft 231 to be arranged in parallel with the first rotation part 211 , and the second arm part 222 is rotated based on the second rotation shaft 232 to provide a second It may be arranged in parallel with the rotating part 212 . Accordingly, in the display 160 , the central portion 163 may be bent into a “U” shape, and the remaining area may maintain a flat state.

According to various embodiments, while the first rotating part 211 and the first arm part 221 are vertically (or inclined by a specified angle in the -y-axis direction based on a vertical axis (eg, z-axis)), the second The upper surface of the first bracket body 211_1 of the first rotation unit 211 and the upper surface of the basic body 221_1 of the first arm 221 may be arranged side by side without a difference in height. Due to the difference in length between the first rotating part 211 and the first arm part 221 , the first fastening part 251 is located below the first slide hole 211_2 of the first rotating part 211 (eg, as shown in FIG. 17 ). , the edge in the -z-axis direction). According to various embodiments, when the electronic device 100 is in an unfolded state, the first fastening part 251 may be located at an upper edge of the first slide hole 211_2 of the first rotating part 211 . Similarly, when the electronic device 100 is in a folded state, the second fastening part 252 may be located at a lower edge of the second slide hole 212_2 .

According to various embodiments, in a state in which the display 160 of the electronic device 100 is folded (eg, a state in which the center of the display 160 is deformed into a U shape), according to the rotation of the first arm 221 , the first The peaks and valleys of the cam structure 221_4a have a state in which they are engaged with the valleys and valleys of the first cam 241a_1a of the first cam member 241a, and the peaks and valleys of the second cam structure 221_4b are the second cams. The member 241b may have a state in which it is disposed to engage the valleys and mountains of the third cam 241b_1a. Similarly, as the second arm portion 222 rotates, the peaks and valleys of the third cam structure 222_4a are arranged to engage the valleys and valleys of the second cam 241a_1b of the first cam member 241a, and The peaks and valleys of the four cam structure 222_4b may be arranged to engage the valleys and valleys of the fourth cam 241b_1b of the second cam member 241b.

The electronic device 100 according to the above-described various embodiments may implement a plurality of cam structures without increasing the thickness of the hinge structure to increase the detent load of the hinge. The electronic device 100 uses the increased detent load of the hinge structure, even if the reaction force (or the repulsive force, or the force to unfold the display in the folded state) of the display 160 (or the flexible display) is increased at room temperature or low temperature In the environment of the terminal, it is possible to improve a phenomenon in a folded state or an unfolded state of the terminal (eg, a phenomenon in which the ends of the housings 110 and 120 are opened in the folded state). The electronic device 100 may allow an increase in the reaction force of the display 160 through the improved detent load, thereby increasing the rigidity of the display 160 (eg, manufacturing the display 160 thicker than before, and applicable), thus reducing the occurrence of cracks or damage to the surface of the portion (eg, the central portion 163 of the display 160 ) on which the load according to the folding is concentrated in the folded state.

18 is a view showing an example of another form of a third hinge structure according to various embodiments, and FIG. 19 is a view showing a coupling state of a third cam member, a fifth cam structure, and a sixth cam structure according to various embodiments; 20 is a perspective view in the second direction of an example of a coupling state of the third cam member, the fifth cam structure, and the sixth cam structure according to various embodiments of the present disclosure. 21 is a view illustrating a coupling state of a fifth cam structure and a sixth cam structure, and a first rotation shaft and a second rotation shaft according to various embodiments of the present disclosure; Prior to description, the third hinge structure may be disposed to replace at least one of the first hinge structure 200a and the second hinge structure 200b described above with reference to FIG. 1 . Alternatively, the first hinge structure 200a and the second hinge structure 200b may be additionally disposed in an electronic device. For example, referring to FIG. 1 , a third hinge structure 200c may be further disposed between the first hinge structure 200a and the second hinge structure 200b .

1, 3, and 18 to 21 , the third hinge structure 200c according to an embodiment includes rotating parts 211 and 212, a fixing bracket 213, arm parts 221 and 222, The first rotation shaft 231 , the second rotation shaft 232 , the first cam member 241a , the second cam member 241b , the third cam member 241c , the first elastic body 242a , the second elastic body 242b ), a third elastic body 242c, a fourth elastic body 242d, a fifth cam structure 221_4c, a sixth cam structure 222_4c, a center bracket 243a, and a shaft bracket 243b. Additionally, the third hinge structure 200c includes the stopper 236, the rotation shaft support member 235, the idle gears 233 and 234, the arm parts 221 and 222 and the rotation parts 211 and 212, which were described with reference to FIG. 3 above. ) connecting parts (eg, 251 and 252 of FIG. 3 ) may be included. In addition, fixing clips are respectively inserted into the -x-axis direction end of the first rotational shaft 231 and the -x-axis direction end of the second rotational shaft 232, so that the shaft bracket 243b is connected to the first rotational shaft 231 and It may be fixed so as not to be separated from the -x-axis direction of the second rotation shaft 232 .

According to various embodiments, in the third hinge structure 200c, except for the fifth cam structure 221_4c, the sixth cam structure 222_4c, and the third cam member 241c, the remaining components are described in FIG. 3 . The configuration may be the same as or similar to the corresponding configurations. Accordingly, in the following description, the third hinge structure 200c will be described based on the third cam member 241c, the fifth cam structure 221_4c, and the sixth cam structure 222_4c.

According to various embodiments, the third cam member 241c may include a cam body 241c_1 , a fifth cam 241c_1a , and a sixth cam 241c_1b . The third cam member 241c may have the same shape and size as the first cam member 241a or the second cam member 241b described above, except for the arrangement direction. The fifth cam 241c_1a and the sixth cam 241c_1b may have the same or similar structures as the first cam 241a_1a and the second cam 241a_1b described with reference to FIG. 12 . For example, in the fifth cam 241c_1a and the sixth cam 241c_1b, a hole into which the first rotation shaft 231 and the second rotation shaft 232 are inserted is formed in the center, and protrusions including mountains and valleys in the -x-axis direction structure may be included. The peaks and valleys of the fifth cam 241c_1a may be disposed to engage the peaks and valleys of the fifth cam structure 221_4c facing each other. Similarly, the peaks and valleys of the sixth cam 241c_1b may be arranged to engage the peaks and valleys of the facing sixth cam structure 222_4c. The holes formed in the center of the fifth cam 241c_1a and the sixth cam 241c_1b are provided in a circular shape, so that the arranged state can be maintained regardless of the rotation of the first rotation shaft 231 and the second rotation shaft 232 . .

According to various embodiments, the fifth cam structure 221_4c may be disposed between the shaft bracket 243b and the fifth cam 241c_1a. The fifth cam structure 221_4c includes a first cam structure body 221_4c2 and a third cam hole 221_4c1 formed in the center of the first cam structure body 221_4c2 and into which the first rotation shaft 231 can be inserted. , a first support part 221_4c3 disposed on one side of the first cam structure body 221_4c2 may be included. The first cam structure body 221_4c2 may have a ring shape having a predetermined thickness as a whole. Mountains and valleys are continuously disposed on one surface of the first cam structure body 221_4c2 in the x-axis direction, and the one surface in the -x-axis direction may include at least a partially flat surface. The size of the z-axis cross-section (eg, the cross-section cut from the z-axis to the -z-axis direction) of the first cam structure body 221_4c2 is the z-axis cross-section (eg, from the z-axis to the -z-axis direction) of the third cam 241b_1a. It can be formed similar to the size of the cross section cut by The third cam hole 221_4c1 may be formed to be the same as or similar to at least a portion of a z-axis cross-section (eg, a cross-section cut from the z-axis to the -z-axis direction) of the first rotation shaft 231 . For example, the third cam hole 221_4c1 may include sections corresponding to a curved section and a straight section of the first rotation shaft 231 . Accordingly, when the first rotation shaft 231 rotates, the fifth cam structure 221_4c may rotate in response to the rotation of the first rotation shaft 231 . The fifth cam structure 221_4c is based on the elastic force applied from the first elastic body 242a and the fifth cam 241c_1a while the first rotation shaft 231 rotates while engaged with the fifth cam 241c_1a. to perform a detent operation. For example, the first elastic body 242a exerts an elastic force in the -x-axis direction, and the elastic force may be used to press the coupled state of the fifth cam 241c_1a and the fifth cam structure 221_4c. In this operation, when the rotation of the first rotation shaft 231 occurs, the fifth cam structure 221_4c rotates according to the rotation of the first rotation shaft 231 , and the peaks and valleys of the fifth cam structure 221_4c are the fifth The detent operation may be performed while shifting the mountains and valleys of the cam 241c_1a. The first support part 221_4c3 protrudes in the -y-axis direction from one side of the first cam structure body 221_4c2, and as it moves away from the first cam structure body 221_4c2, the cross-section (eg, in the z-axis direction in the -z-axis direction) It may have a shape (eg, a triangular cross-section or a cross-sectional shape of a cone) that gradually decreases in size. At least a portion of the z-axis upper surface of the first support part 221_4c3 may be formed to be flat. The first support part 221_4c3 may support, for example, the center bar 243c described with reference to FIG. 3 . When the fifth cam structure 221_4c is applied, the support rings described above with reference to FIG. 3 may be omitted.

According to various embodiments, the sixth cam structure 222_4c has a fourth cam hole into which the second cam structure body 222_4c2 and the second rotation shaft 232 can be inserted, similarly to the fifth cam structure 221_4c. It may include a 222_4c1 and a second support 222_4c3. The second cam structure body 222_4c2 has the same or similar configuration to the first cam structure body 221_4c2 of the above-described fifth cam structure 221_4c, and the fourth cam hole 222_4c1 has the third cam hole 221_4c1. , and the second support part 222_4c3 may have a configuration corresponding to the first support part 221_4c3 described above. The above-described sixth cam structure 222_4c may rotate in response to the rotation of the second rotation shaft 232 .

According to various embodiments, the third hinge structure 200c of the above-described structure corresponds to the rotation of at least one of the first rotation part 211 and the second rotation part 212, and the peaks and valleys of the fifth cam 241c_1a are formed. It is possible to provide a hinge force (or a sense of detent) due to elasticity by the first elastic body 242a while rotating to engage or misalign with the peaks and valleys of the fifth cam structure 221_4c. In addition, the third hinge structure 200c corresponds to the rotation of at least one of the first rotation part 211 and the second rotation part 212 , so that the peaks and valleys of the sixth cam 241c_1b are formed in the sixth cam structure 222_4c. It is possible to provide a sense of detent due to elasticity by the second elastic body 242b while rotating to engage or misalign with the mountains and valleys. Additionally, in the third hinge structure 200c, the first cam structure 221_4a disposed on the first arm part 221 is disposed to engage the first cam 241a_1a of the first cam member 241a. , a cam operation is performed according to the rotation of the first rotation shaft 231 , and the second cam structure 221_4b disposed on the first arm part 221 is disposed to mesh with the third cam 241b_1a of the second cam member 241b In this state, the cam operation is performed according to the rotation of the first rotating shaft 231 . In addition, in the third hinge structure 200c, the third cam structure 2224a disposed on the second arm part 222 is disposed to engage the second cam 241a_1b of the first cam member 241a, A cam operation is performed according to the rotation of the second rotation shaft 232 , and the fourth cam structure 222_4b disposed on the second arm part 222 is disposed to engage the fourth cam 241b_1b of the second cam member 241b. In this state, a cam operation may be performed according to the rotation of the second rotation shaft 232 . As described above, in the third hinge structure 200c according to an embodiment, a plurality of cams (eg, six) disposed on three cam members engage the cam structures, while providing a more robust detent operation, By distributing the pressure, it is possible to reduce wear of the respective cams and cam structures.

22 is a view showing an example of a fourth hinge structure according to various embodiments, and FIG. 23 is a view showing in more detail the fourth cam member and the fifth cam member shown in FIG. 22 according to various embodiments. 24 is a view for explaining cam operation timings of a fourth cam member and a fifth cam member according to various embodiments of the present disclosure;

1, 3, 22 and 23 , according to an exemplary embodiment, the fourth hinge structure 200d includes a first rotation part 211 , a second rotation part 212 , a first arm part 221 , The second arm 222, the fourth cam member 241d, the fifth cam member 241e, the center bracket 243a, the shaft bracket 243b, the first rotation shaft 231, the second rotation shaft 232, the second It may include a first elastic body 242a, a second elastic body 242b, a third elastic body 242c, and a fourth elastic body 242d. In the above-described structure, except for the fourth cam member 241d and the fifth cam member 241e, the remaining components may be the same or similar to those described above with reference to FIG. 3 .

According to various embodiments, the fourth cam member 241d may include a cam body 241d_1 , a seventh cam 241d_1a , and an eighth cam 241d_1b . In the seventh cam 241d_1a, for example, three peaks and three valleys may be alternately arranged with each other, and in the same manner, in the eighth cam 241d_1b, three peaks and three valleys may be alternately arranged with each other. there is. A cam hole into which the first rotation shaft 231 can be inserted is formed in the center of the seventh cam 241d_1a, and a cam hole into which the second rotation shaft 232 can be inserted can also be formed in the center of the eighth cam. . The slopes forming the mountains of the seventh cam 241d_1a and the eighth cam 241d_1b may form a first angle A1 with respect to a horizontal axis (eg, a y-axis), and the height of the mountain is a first height H1 ) can have According to various embodiments, the flat width of the valleys (or the flat width of the mountains) of the seventh cam 241d_1a and the eighth cam 241d_1b may have the first width B1 .

According to various embodiments, the fifth cam member 241e may include a cam body 241e_1 , a ninth cam 241e_1a , and a tenth cam 241e_1b . In the ninth cam 241e_1a, for example, three peaks and three valleys may be alternately arranged, and in the same manner, in the tenth cam 241e_1b, three peaks and three valleys may be alternately arranged. there is. A cam hole into which the first rotation shaft 231 can be inserted is formed in the center of the ninth cam 241e_1a, and a cam hole into which the second rotation shaft 232 can be inserted is also formed in the center of the tenth cam 241e_1b. can be The slopes forming the mountains of the ninth cam 241e_1a and the tenth cam 241e_1b may form a second angle A2 with respect to a horizontal axis (eg, a y-axis), and the height of the mountain is a second height H2 ) can have According to various embodiments, the flat width of the valleys (or the flat width of the mountains) of the ninth cam 241e_1a and the tenth cam 241e_1b may have the second width B2 . According to an embodiment, at least one of the first height H1 and the second height H2, the first angle A1 and the second angle A2, and the first area B1 and the second area B2. One can be designed differently. For example, the first height H1 and the second height H2 are different, and the first angle A1 and the second angle A2 and the first area B1 and the second area B2 are the same. can be designed Alternatively, the first angle A1 (eg, 45 degrees) and the second angle A2 (eg, 55 degrees) are designed differently, and the first height H1 and the second height H2 and the first area ( B1) and the second area B2 may be designed to be the same.

Referring to FIG. 24 , in the fourth hinge structure 200d having the above-described structure, the fourth cam member 241d and the fifth cam member 241e are formed differently, so that the first rotating part 211 and the second rotating part ( 212) is rotated, when the fourth cam member 241d and the cam structures reach the top (eg, a peak point) or the size of the contact area of the mountains (eg, when the mountain and the acid are in contact or the fourth cam member 241d) The size of the surface where the mountain of the cam structure and the mountain of the cam structure are in contact) may be different from each other when the fifth cam member 241e and the cam structures reach the top or the size of the contact area of the mountains. For example, the slopes of the mountains formed on the fourth cam member 241d are relatively earlier than the fifth cam member 241e. cam structures), and then the slopes of the mountain of the fifth cam member 241e are in contact with the slopes of the mountains of the other cam structures of the first arm part 221 and the second arm part 222 . can be contacted. When the beginnings of the peak points of the fourth cam member 241d and the fifth cam member 241e are the same, and the flat areas of the mountains of the fourth cam member 241d and the fifth cam member 241e are the same, the peak points The formed sections may be the same. When the first rotating part 211 and the second rotating part 212 continue to rotate, the peak point departure of the fifth cam member 241e starts first, and then the peak point departure of the fourth cam member 241d starts. can

According to various embodiments, the fourth cam member 241d configures the angle A1 of the seventh cam 241d_1a and the eighth cam 241d_1b at 45 degrees, and the height of the seventh cam 241d_1a and the eighth cam 241d_1b H1 is composed of 0.8 mm, the angle A2 of the ninth cam 241e_1a and the tenth cam 241e_1b of the fifth cam member 241e is 55 degrees, and the ninth cam 241e_1a and the tenth cam 241e_1b The height H2 of can be configured as 0.8mm. The height H1 of the seventh cam 241d_1a and the eighth cam 241d_1b and the height H2 of the ninth cam 241e_1a and the tenth cam 241e_1b are the same, and the heights of the seventh cam 241d_1a and the eighth cam 241d_1b are the same. Because the angle A1 and the angle A2 of the ninth cam 241e_1a and the tenth cam 241e_1b are different, the plane length B1 of the seventh cam 241d_1a and the eighth cam 241d_1b and the ninth cam 241e_1a and the tenth cam The plane length B2 of (241e_1b) may have a length difference. At the starting point of the cam operation of the electronic device 100 , the cam operation of the fourth cam member 241d and the fifth cam member 241e is started due to the difference in the plane lengths of the respective cams 241d_1a, 241d_1b, 241e_1a, and 241e_1b. difference may occur. Accordingly, after the springs of the ninth cam 241e_1a and the tenth cam 241e_1b are out of the maximum compression state, the springs of the seventh cam 241d_1a and the eighth cam 241d_1b are out of the maximum compression state after a while. And since the heights H1 and H2 are the same at the cam operation completion points of the fourth cam member 241d and the fifth cam member 241e, the seventh cam 241d_1a, the eighth cam 241d_1b, and the ninth cam 241e_1a) and the spring of the tenth cam 241e_1b is operated in the same compressed state. Through the operation of this process, the hinge force (or detent load) is increased, but the load at the starting point of operation is dispersed to realize a smooth feeling of operation.”

As described above, in the fourth hinge structure 200d according to an embodiment, the peak points of the cam operations that occur while the first rotation part 211 and the second rotation part 212 are rotated are different from each other. A hinge force (or sense of detent) may be provided.

25 is a diagram illustrating an example of a fifth hinge structure according to various embodiments of the present disclosure;

Referring to FIGS. 3, 4 and 25 , the fifth hinge structure 200e includes rotating parts 211 and 212 , a fixing bracket 213 , arm parts 221 and 222 , and idle gears 233 and 234 . , a first rotation shaft 231, a second rotation shaft 232, a rotation shaft support member 235a, an integrated cam member 2500, a center bracket 243a, a shaft bracket 243b, a plurality of elastic bodies 242a, 242b, 242c, 242d). In addition, as described above with reference to FIG. 3, the fifth hinge structure 200e includes fastening parts connecting the arm parts 221 and 222 and the rotating parts 211 and 212, the fastening parts and the first rotation shaft ( 231 ) and a plurality of fixing clips for fixing the second rotation shaft 232 may be further included. In the above-described structure, except for the integrated cam member 2500, the remaining components may be the same or similar to those described with reference to FIGS. 3 and 4 above.

According to various embodiments, the integrated cam member 2500 includes a first cam 241a_1a disposed to engage with a first cam structure 221_4a formed in the first arm part 221 , and a first cam 241a_1a disposed in the second arm part 222 . 3 A second cam 241a_1b disposed to mesh with the cam structure 222_4a , a third cam 241b_1a disposed to mesh with the second cam structure 221_4b formed on the first arm part 221 , and a second arm part 222 . ) formed in the fourth cam structure 222_4b), the fourth cam 241b_1b, the first cam 241a_1a, the second cam 241a_1b, the third cam 241b_1a and the fourth cam 241b_1b arranged to engage Bridges 2500a and 2500b for connecting may be further included. The above-described integrated cam member 2500 includes the first cam member 241a and the second cam member 241b described with reference to FIG. 3, one side of the first cam member 241a, and the second cam member 241b. It may be described as a structure further including bridges 2500a and 2500b connecting one side of the . The bridges 2500a and 2500b include a first portion 2500b connecting one side of the first cam 241a_1a and one side of the third cam 241b_1a, one side of the second cam 241a_1b, and the fourth cam 241b_1b A second portion 2500a connecting one side may be included. A hole may be formed in the center of the bridges 2500a and 2500b so that the center bracket 243a can be exposed to the outside. The hole formed in the center bracket 243a and the boss disposed in the hinge housing 150 may be coupled through the hole formed in the center of the bridges 2500a and 2500b.

According to various embodiments, in the fifth hinge structure 200e having the above-described structure, the four cams 241a_1b, 241a_1a, 241b_1b, and 241b_1a include the bridges 2500a and 2500b (or the first part 2500a of the bridge and the second part 2500a). portion 2500b and the cam bodies), so that the first rotation shaft 231 and the second rotation shaft 232 may be more firmly fixed while rotating. Accordingly, the cam structures 221_4a , 221_4b , 222_4a , and 222_4b disposed on the first arm part 221 and the second arm part 222 are twisted (with each cam and each cam) through the more firmly fixed integrated cam member 2500 . It is possible to more stably perform the cam operation without distortion) occurring due to the cam operations between the cam structures being different for each position. For example, in the electronic device 100 described above, the detent load can be increased only by increasing the spring without increasing the number of cam parts, which can reduce the number of parts, reduce the number of cam-related management items, and reduce the cost of the cam-related parts. .

26 is a view illustrating an example of a sixth hinge structure according to various embodiments of the present disclosure;

25 and 26 , the sixth hinge structure 200f includes rotating parts 211 and 212 , a fixing bracket 213 , arm parts 221 and 222 , a first rotating shaft 2310 , and a second rotating shaft ( 2320), the rotation shaft support member 235b, the integrated cam member 2500, the center bracket 243a, the shaft bracket 243b, and a plurality of elastic bodies 242a, 242b, 242c, and 242d may be included. In addition, as described above with reference to FIG. 25, the sixth hinge structure 200f includes fastening parts connecting the arm parts 221 and 222 and the rotating parts 211 and 212, the fastening parts and the first rotation shaft ( A plurality of fixing clips for fixing the 2310 and the second rotation shaft 2320 may be further included. Compared to the fifth hinge structure 200e of FIG. 25 , the sixth hinge structure 200f may have the same or similar shape except for the gear structure. For example, in the sixth hinge structure 200f, the idle gears 233 and 234 and the shaft gear disposed in the fifth hinge structure 200e may be removed. According to various embodiments, in the sixth hinge structure 200f, the first rotation shaft 2310 and the second rotation shaft 2320 may have a shape in which the shaft gear 232_2 described with reference to FIG. 8 is removed. The rotation shaft support member 235b may serve to support the first rotation shaft 2310 and the second rotation shaft 2320 not to be separated from the fixing bracket 213 .

According to various embodiments, even if the sixth hinge structure 200f of the above-described structure does not employ a separate gear structure (eg, idle gears and a gear unit disposed on the rotation shaft), the electronic device 100 can be stably folded or An unfolded state can be provided. For example, the sixth hinge structure 200f has the integrated cam member 2500 even when the first rotating part 211 and the first arm part 221 and the second rotating part 212 and the second arm part 222 rotate separately. ) based on no distortion (eg, distortion between the first rotating part 211 and the first arm part 221 and the second rotating part 212 and the second arm part 222), stable folding, a specified angle, An unfolded state can be provided. When the cam in contact with the arm to be rotated moves, all the cams are moved to the rear, and accordingly, the cam in contact with the fixed arm is also moved backwards without being distorted.

27A is a view showing another example of a cam shape according to various embodiments, and FIG. 27B is a view showing an example of a contact state between a cam and some mountains of a cam structure according to various embodiments. Prior to description, the cam 2400a according to an exemplary embodiment may be applied to at least one of the cams and the cam structures described with reference to FIGS. 2 to 26 .

Referring to FIG. 27A , the cam 2400a (or cam structure) according to an embodiment may include a cam support B0, a plurality of mountains M1, M2, M3, and a plurality of valleys V1 and V2. there is. In the illustrated drawing, a cam 2400a including three peaks M1, M2, M3 and three valleys V1 and V2 (a bone covered by the first mountain M1 is not shown) is presented, but the present invention This is not limited thereto. For example, the cam 2400a may have a structure including two or more cams and valleys. The plurality of valleys M1 , M2 , and M3 may all have the same structure. Alternatively, at least one mountain among the plurality of valleys M1 , M2 , and M3 may have a different shape from other mountains. For example, at least one mountain may have a structure in which a predetermined inclination angle (inclination angle greater than 0 degrees, for example, about 5 degrees) is formed in the second part P2 corresponding to the center of the mountain as shown, and at least one of the other mountains The mountain may have a structure in which a central portion of the mountain is flat.

According to an embodiment, at least one of the plurality of valleys M1, M2, and M3, for example, a first mountain M1, is a first portion P1 having a first inclination angle as1 as shown. , a second portion P2 having a second inclination angle as2 and a third portion P3 having a third inclination angle as3 may be included. One side (eg, -y-axis end) of the first portion P1 is connected to one side (eg, y-axis end) of the first valley V1, and the other side (eg, y-axis end) of the first part P1 ) may be arranged to be connected to one side (eg, the -y-axis end) of the second part P2. The first portion P1 may be formed of, for example, a ridge line having a first inclination angle as1 with respect to the y-axis. The first inclination angle as1 may include an acute angle smaller than 90 in the y-axis direction from the -y-axis with respect to the x-axis.

The second part P2 has one side (eg, -y-axis end) connected to the other side (eg, y-axis end) of the first part P1, and the other side (eg, y-axis end) of the second part P2. ) may be arranged to connect with one side (eg, the -y-axis end) of the third part P3 . The second part P2 may be disposed to protrude more along the x-axis than the first part P1 and the third part P3 . A boundary area between the first portion P1 and the second portion P2 may be rounded with a designated first curvature R1 . The second portion P2 may have a second inclination angle as2 with respect to the y-axis. The second inclination angle as2 includes an acute angle smaller than 90 in the y-axis direction from the -y-axis with respect to the x-axis, and the absolute value of the second inclination angle as2 is greater than the absolute value of the first inclination angle as1. can be small

The third part P3 has one side (eg, -y-axis end) connected to the other side (eg, y-axis end) of the second part P2, and the other side (eg, y-axis end) of the third part P3. ) may be arranged to connect with one side (eg, the -y-axis end) of the second valley V2. The third portion P3 may be formed to have a predetermined inclination in the y-axis from the second portion P2 . A boundary area between the second portion P2 and the third portion P3 may be rounded with a second designated curvature R2 . The second curvature R2 may have a smaller value than the first curvature R1 (eg, the first curvature R1 is gentler than the second curvature R2 ). The third portion P3 may have a third inclination angle as3 with respect to the -y axis. The third inclination angle as3 includes an acute angle smaller than 90 in the -y-axis direction from the y-axis with respect to the x-axis, and the absolute value of the third inclination angle as3 is greater than the absolute value of the second inclination angle as2. can be large According to various embodiments, the absolute value of the third inclination angle as3 may be the same as or greater than the absolute value of the first inclination angle as1.

Referring to FIG. 27B , the cam shape described with reference to FIG. 27A may be applied to at least one cam or at least one cam structure described with reference to FIGS. 2 to 26 . For example, in the illustrated drawing, the protrusion of the cam 2400a may be disposed to protrude from the x-axis to the -x-axis direction, and the protrusion of the cam structure 2400b may be disposed to protrude from the -x-axis to the x-axis direction. Alternatively, the uneven portion of the cam 2400a and the uneven portion of the cam structure 2400b may be disposed to face each other. At least a portion of the second portion 2400a_P2 of the cam 2400a and at least a portion of the second portion 2400b_P2 of the cam structure 2400b are, as shown, an electronic device (eg, the electronic device 100 of FIG. 2 ). may be in contact with each other during the free-stop section (a section in which the cam 2400a and the cam structure 2400b are mounted in a designated angular range by friction). According to an embodiment, when the electronic device has the free-stop state described with reference to FIG. 15 or FIG. 16 , the display (the display 160 of FIG. 1 or FIG. 2 ) exerts a repulsive force to be restored to the unfolded state (the state of FIG. 14 ). can perform

According to one embodiment, the cam 2400a is pushed in the y-axis direction by the restoring force of the display (eg, the repulsive force of the display acts in the counterclockwise direction), and the cam structure 2400b is formed by the restoring force of the display. -A push in the y-axis direction may occur (eg, the repulsive force of the display acts in the clockwise direction). In this process, since the second part 2400a_P2 of the cam 2400a and the second part 2400b_P2 of the cam structure 2400b are in contact with the second inclination angle as2 described above, the cam 2400a of the present description And the cam structure 2400b offsets at least a part of the repulsive force (or restoring force) generated in the unfolding direction of the display, so that the free-stop push (eg, the first housing (eg, FIG. 1 or 2) and the second housing (eg, change in the angle between the second housing 120 of FIG. 1 or 2) may be suppressed. According to various embodiments of the present disclosure, as shown in FIG. 15 or FIG. 16 above, the electronic device may have a mounted state (or a free-stop state) of a specific angle. In this case, in the electronic device, as illustrated, the cam 2400a and the cam structure 2400b are arranged to engage, so that the repulsive force or restoring force of the display may cancel the force acting in the unfolded state as shown in FIG. 14 . In FIG. 27B , both the cam 2400a and the cam structure 2400b exemplify a structure in which the summit portion of the mountain has the second inclination angle as2, but the present invention is not limited thereto. For example, the second portion P2 having the second inclination angle as2 may be formed in only one of the cam 2400a and the cam structure 2400b.

Meanwhile, the unfolding direction rotation has been described with reference to the direction in which the cam 2400a rotates from the -y-axis (or left) to the y-axis (or right) in FIG. 27B, but the present invention is not limited thereto. For example, a direction in which the cam 2400a rotates from a y-axis to a -y-axis direction according to a design style of the electronic device may be a direction in which the display operates from a folded state to an unfolded state.

According to the various embodiments described above, the electronic device (or a portable electronic device, a portable communication device, a foldable electronic device, or a foldable electronic device having a communication function) according to an embodiment includes the first housing 110 and the second housing 120 . A housing comprising: a hinge structure (200a, 200b) accommodated in the housing and connected to the first housing and the second housing, and the first housing, the hinge structure (or a hinge part, a hinge unit, a hinge module; hinge device) and the flexible display 160 disposed over the second housing. The hinge structure 200a includes a first rotating shaft 231 rotating about a first axis 11 , a second rotating shaft 232 rotating about a second axis 12 , and connected to the first rotating shaft. a first arm portion 221 including a first cam structure 221_4a and a second cam structure 221_4b, and a third cam structure 222_4a and a fourth cam structure 222_4b connected to the second rotation shaft. a second arm part 222 that is connected to the first arm part and rotates about a third axis 13 , a first rotation part 211 connected to the second arm part and rotates about a fourth axis 14 . A first cam member 241a including a second rotating part 212 to, a first cam 241a_1a meshing with the first cam structure, and a second cam 241a_1b meshing with the third cam structure; A second cam member 241b including a third cam 241b_1a meshing with the second cam structure and a fourth cam 241b_1b meshing with the fourth cam structure, the second cam member 241b being connected to the first rotation shaft and connected to the first cam A first elastic body 242a providing an elastic force, a second elastic body 242b connected to the second rotation shaft and providing an elastic force to the second cam, is connected to the first rotation shaft and providing an elastic force to the third cam A third elastic body 242c and a second elastic body 242c connected to the second rotation shaft and providing an elastic force to the fourth cam may be included.

According to various embodiments of the present disclosure, the electronic device includes a first sliding hole 211_2 formed in the first rotating part, a first fastening part 251 for fastening the first arm part, and a second sliding hole formed in the second rotating part ( 212_2) and a second coupling part 252 coupling the second arm part, wherein the first coupling part slides in the first sliding hole according to the rotation of the first arm part, and the second The second coupling part may slide in the second sliding hole in response to the rotation of the arm part.

According to various embodiments, the third elastic body is disposed between the first cam structure and the second cam structure, and the fourth elastic body is disposed between the third cam structure and the fourth cam structure, and the third elastic body is disposed between the third cam structure and the fourth cam structure. The first elastic body, the first cam, the first cam structure, the third elastic body, the third cam, and the second cam structure are inserted into the first rotation shaft in this order, and the second elastic body, the second elastic body, and the second cam structure are inserted into the second rotation shaft. The second cam, the third cam structure, the fourth elastic body, the fourth cam, and the fourth cam structure may be inserted in this order.

According to various embodiments, cross-sections of the hole of the first cam, the hole of the second cam, the hole of the third cam, and the hole of the fourth cam are formed in a circular shape, and the hole of the first cam structure, the hole of the second cam, At least some sections of the cross-sections of the two-cam structure hole, the third cam structure hole, and the fourth cam structure hole may include a straight section.

According to various embodiments of the present disclosure, the electronic device is inserted into the first and second rotation shafts and is disposed between a shaft bracket for supporting the first and second elastic bodies and the hinge structure and the display, and the hinge The hinge structure may further include at least one of a center bar supporting the display while vertically moving in a direction toward or opposite to the display in the hinge structure according to a hinge operation of the structure.

According to various embodiments, the separation distance between the first axis and the second axis is shorter than the separation distance between the third axis and the fourth axis.

According to various embodiments, the third axis and the fourth axis are positioned below the first axis and the second axis in an upward direction toward the display in the hinge structure.

According to various embodiments, the first rotating unit includes a first rail rotating along the third axis, the second rotating unit includes a second rail rotating along the fourth axis, and the electronic device includes the first rail rotating along the fourth axis. It may further include at least one of a fixing bracket having a first guide groove corresponding to the first rail and a second guide groove corresponding to the second rail, and a bracket cover covering one surface of the fixing bracket.

According to various embodiments of the present disclosure, in the electronic device, a fifth cam structure 221_4c fastened to the first rotation shaft, a sixth cam structure 222_4c fastened to the second rotation shaft, and the fifth cam structure are engaged with the a third cam member 241c including a fifth cam 241c_1a receiving an elastic force by the first elastic body and a sixth cam 241c_b1 engaged with the sixth cam structure and receiving elastic force by the second elastic body; may include more.

According to various embodiments, the fifth cam structure and the sixth cam structure may be respectively coupled to the first rotation shaft and the second rotation shaft in a separated state.

According to various embodiments, at least a portion of a cross section of the hole of the fifth cam structure and at least a portion of a cross section of the hole of the sixth cam structure include a straight section.

According to various embodiments, the fifth cam structure and the sixth cam structure may rotate according to the rotation of the first arm part and the second arm part.

According to various embodiments, the first elastic body may be disposed between the fifth cam structure and the first cam structure, and the second elastic body may be disposed between the sixth cam structure and the third cam structure.

According to various embodiments, a first angle of the mountain formed on the first cam and a second angle of the mountain formed on the third cam may be different from each other.

According to various embodiments, the angle of the mountain formed on the first cam is the same as the angle of the mountain formed on the second cam, and the angle of the mountain formed on the third cam is the same as the angle of the mountain formed on the fourth cam. can be formed.

According to various embodiments, the first width of the valley formed in the first cam and the second width of the valley formed in the third cam are different from each other, or the first width of the peak formed in the first cam The height and the second height of the mountain formed on the third cam may be different from each other.

According to various embodiments, the electronic device may further include a bridge connecting the first cam member and the second cam member.

According to various embodiments of the present disclosure, the bridge may further include a first portion connecting the first cam and the third cam and a second portion connecting the second cam and the fourth cam.

According to the above-described various embodiments, the hinge structure used in the foldable electronic device according to an embodiment includes the first rotating part 211 connected to the first housing of the foldable electronic device and rotating within a predetermined angle range, the foldable electronic device. a second rotating part 212 connected to the second housing of The first arm part 221 including, the second arm part 222 including the third cam structure 222_4a and the fourth cam structure 222_4b which are connected to the second rotation part and spaced apart from each other by a predetermined distance, the first shaft 11 ), at least a portion of which is inserted into the first cam structure and the second cam structure to rotate about a first rotation shaft 231 and a second shaft 12, the third cam structure and the At least a portion of the fourth cam structure is inserted into the second rotating shaft 232 to rotate, the first cam 241a_1a is inserted into the first rotating shaft and engaged with the first cam structure, and the third cam structure is engaged with the second rotation shaft 232 . A first cam member 241a including two cams 241a_1b, a third cam 241b_1a inserted into the second rotation shaft and engaged with the second cam structure, and a fourth cam engaged with the fourth cam structure ( a second cam member 241b including 241b_1b), a first elastic body 242a connected to the first rotation shaft and providing an elastic force to the first cam, and an elastic force connected to the second rotation shaft and applied to the second cam A second elastic body 242b provided, a third elastic body 242c connected to the first rotation shaft and providing an elastic force to the third cam, a second elastic body connected to the second rotation shaft and providing an elastic force to the fourth cam It includes an elastic body 242c, the first rotating part may rotate based on the third axis 13 , and the second rotating part may rotate based on the fourth axis 14 .

According to the various embodiments described above, the arm structure used in the foldable electronic device according to an embodiment includes an arm body, a first arm body disposed on one side of the arm body, and into which at least a portion of a rotation shaft used for a folding operation of the foldable electronic device is inserted. A first cam including a hole and having mountains and valleys formed in the periphery of the first hole, a second cam disposed in parallel with one side of the arm body, spaced apart from the first cam, and into which at least a portion of the rotation shaft is inserted A second cam including a hole and having mountains and valleys formed around the second hole, and a connection part disposed on the other side of the arm body and coupled to a rotation part used for rotation of the foldable electronic device.

According to various embodiments, at least one of the first cam or the second cam includes at least one mountain and a valley, and the mountain includes a first portion having a first inclination angle, a second inclination angle different from the first inclination angle and greater than 0 degrees. It characterized in that it includes a second part having a second inclination angle, and a third part having a third inclination angle.

According to various embodiments, an absolute value of the first inclination angle of the first portion is greater than an absolute value of the second inclination angle of the second portion.

According to various embodiments, a first curvature of a boundary region between the first portion and the second portion may be smaller than a second curvature of a boundary region between the second portion and the third portion.

According to various embodiments, the absolute value of the third inclination angle is equal to or greater than the absolute value of the first inclination angle.

Each of the components (eg, a module or a program) according to various embodiments may be composed of a singular or a plurality of entities, and some sub-components of the aforementioned sub-components may be omitted, or other sub-components may be various It may be further included in the embodiment. Alternatively or additionally, some components (eg, a module or a program) may be integrated into a single entity to perform the same or similar functions performed by each corresponding component prior to integration. According to various embodiments, operations performed by a module, program, or other component may be sequentially, parallelly, repetitively or heuristically executed, or at least some operations may be executed in a different order, omitted, or other operations may be added. can

Claims (20)

A foldable electronic device comprising:
a housing comprising a first housing portion 110 and a second housing portion 120;
Hinge structures 200a and 200b connected to the first housing part and the second housing part, the hinge structure 200a,
a first rotating shaft 231 rotating about the first shaft 11;
a second rotation shaft 232 rotating about the second shaft 12;
a first cam (221_4a) inserted into the first rotation shaft and including a plurality of mountains and valleys and rotated clockwise while the foldable electronic device is folded;
a second cam (222_4a) inserted into the second rotation shaft and including a plurality of mountains and valleys and rotated counterclockwise while the foldable electronic device is folded;
a third cam (241a_1a) engaged with the first cam and including a plurality of mountains and valleys; and
a fourth cam (241a_1b) engaged with the second cam and comprising a plurality of mountains and valleys; and
a flexible display (160) disposed on the first housing portion, the hinge structure, and the second housing portion;
While the foldable electronic device is folded at an angle, at least a portion of a first mountain of the plurality of mountains of the first cam and at least a portion of a second mountain of a plurality of mountains of the third cam are in contact with each other, and the first mountain comprises: The foldable electronic device characterized in that it is formed in a shape in which the inclination increases in the clockwise direction.
According to claim 1,
The second mountain of the third cam is formed in a shape in which an inclination decreases in the clockwise direction while the foldable electronic device is folded at a predetermined angle.
According to claim 1,
While the foldable electronic device is folded at a predetermined angle, a third mountain among the plurality of mountains of the second cam and a fourth mountain among the plurality of mountains of the fourth cam are in contact with each other, and the third mountain is inclined toward the counterclockwise direction. A foldable electronic device formed in an increasing shape.
The method of claim 1,
and the fourth mountain of the fourth cam is formed to have a decreasing inclination toward the counterclockwise direction while the foldable electronic device is folded at a predetermined angle.
According to claim 1,
a first arm portion 221 in which the first cam is disposed and a portion of the first rotation shaft is inserted;
The foldable electronic device of claim 1, further comprising a second arm portion (222) in which the first cam is disposed and a portion of the second rotation shaft is inserted.
6. The method of claim 5,
a first rotating member 211 connected to the first arm; and
and a second rotating member 212 connected to the second arm,
The foldable electronic device of claim 1, wherein the first rotation member is configured to rotate about a third axis (13), and the second rotation member is configured to rotate based on a fourth axis (14).
7. The method of claim 6,
and a distance between the third axis and the fourth axis is longer than a distance between the first axis and the second axis.
7. The method of claim 6,
a first coupling part coupling the first arm part and the first rotation member;
It further includes; a second fastening part for fastening the second arm and the second rotation member
the first rotating member engages with the first housing portion;
the second rotation member engages the second housing portion;
During the folding operation of the first housing part and the second housing part from folding or unfolding, the first fastening part slides along a hole formed on one side of the first rotating member, and the second fastening part is the second fastening part A foldable electronic device that slides along a hole formed on one side of the rotating member.
According to claim 1,
a first arm portion including the first cam and a fifth cam connected to the first rotation shaft and positioned parallel to the first cam;
a second arm portion including the second cam and a sixth cam connected to the second rotation shaft and positioned parallel to the second cam;
a seventh cam engaged with the fifth cam; and
and an eighth cam engaged with the sixth cam.
10. The method of claim 9,
the fifth cam rotates clockwise while the first cam rotates clockwise;
and the sixth cam rotates counterclockwise while the second cam rotates counterclockwise.
10. The method of claim 9,
A fifth mountain among a plurality of mountains formed on the fifth cam is formed to increase in inclination in the clockwise direction.
10. The method of claim 9,
The foldable electronic device of claim 1, wherein a sixth mountain among the plurality of mountains formed on the sixth cam is formed to have an inclination increasing in the counterclockwise direction.
10. The method of claim 9,
The foldable electronic device of claim 1, wherein a slope of a seventh mountain among a plurality of mountains formed on the seventh cam decreases in the clockwise direction.
11. The method of claim 10,
The foldable electronic device of claim 1, wherein an inclination of an eighth mountain among a plurality of mountains formed on the eighth cam is formed to decrease in the counterclockwise direction.
10. The method of claim 9,
The foldable electronic device further comprising a; cam body connecting the seventh cam and the eighth cam.
According to claim 1,
The foldable electronic device further comprising a cam body connecting the third cam and the fourth cam.
According to claim 1,
with the housing at least partially collapsed, the display is at least partially collapsed to an unfolded state, wherein a restoring force is formed;
and the restoring force is applied to the hinge structure so that the first cam rotates clockwise and the second cam rotates counterclockwise.
According to claim 1,
The acid of the first cam is
Based on the clockwise direction,
a first portion extending to one end of the valley of the first cam and having a first inclination angle;
a second portion connected to the first portion and having a second inclination angle and corresponding to the central portion of the mountain of the first cam;
and a third portion connected to the second portion and having a third inclination angle.
19. The method of claim 18,
The absolute value of the second inclination angle is smaller than the absolute value of the first inclination angle;
The absolute value of the second inclination angle is smaller than the absolute value of the third inclination angle,
An absolute value of the third inclination angle is equal to or greater than an absolute value of the first inclination angle.
19. The method of claim 18,
a first elastic body that exerts an elastic force so that the first cam and the second cam come into contact with each other;
and a second elastic body that exerts an elastic force so that the third cam and the fourth cam come into contact with each other.

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