Foldable electronic device including hinge structure

Abstract

A foldable electronic device according to various embodiments may comprise: a housing including a first housing, a second housing, and a hinge housing positioned at least partially between the first housing and the second housing; a flexible display at least partially accommodated in the first housing and the second housing; and a hinge module connected to the first housing and the second housing. The hinge module may comprise: a first shaft corresponding to a first rotation axis; a second shaft corresponding to a second rotation axis; and a first sink arm configured to rotate about the first rotation axis while the first housing rotates. The first sink arm may include a first through-hole penetrated by the first shaft, and a first spiral portion. The hinge module may comprise a second sink arm configured to rotate about the second rotation axis while the second housing rotates. The second sink arm may include a second through-hole penetrated by the second shaft, and a second spiral portion. The hinge module may include a sliding member configured to move in a direction parallel to the first rotation axis and the second rotation axis while at least one of the first housing and the second housing rotates. The sliding member may include a third through-hole penetrated by the first shaft, a fourth through-hole penetrated by the second shaft, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion. The folding portion of the flexible display may be at least partially positioned between the hinge housing and a virtual straight line connecting the upper end of the third spiral portion and the upper end of the fourth spiral portion of the sliding member in a state in which the housing is folded.

Description

Foldable electronic device including a hinge structure

[0001] The present disclosure relates to a foldable electronic device including a hinge structure.

[0002] Electronic devices are being developed in portable or wearable forms to enhance mobility and accessibility. These devices are becoming lighter and thinner for portability and evolving for ease of use.

[0003] For example, foldable electronic devices with flexible displays are gaining attention as electronic devices that satisfy consumer preferences because they offer relatively larger screens than typical bar-type electronic devices, but can be folded to reduce their size and improve portability.

[0004] These foldable electronic devices include a flexible display and a plurality of housings, wherein the plurality of housings and the flexible display are connected by a hinge assembly, and the housings can be rotated within a specified range according to a user's operation. By rotating the plurality of housings, the electronic device can be converted from a folded state to an unfolded state, or from an unfolded state to a folded state.

[0005] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0006] A foldable electronic device according to one embodiment of the present disclosure may include a housing including a first housing, a second housing, and a hinge housing at least partially positioned between the first housing and the second housing, a flexible display supported by the first housing and the second housing, and a hinge module rotatably connecting the first housing and the second housing. The hinge module may include a first shaft corresponding to a first rotation axis, a second shaft corresponding to a second rotation axis, and a first sync arm configured to rotate about the first rotation axis while the first housing rotates. The first sync arm may include a first through hole through which the first shaft passes and a first spiral portion extending from a surface on which the first through hole is formed. The hinge module may include a second sync arm configured to rotate about the second rotation axis while the second housing rotates. The second sink arm may include a second through hole through which the second shaft passes and a second spiral portion extending from a surface on which the second through hole is formed. The hinge module may include a sliding member configured to move in a direction parallel to the first rotation axis and the second rotation axis while at least one of the first housing or the second housing rotates. The sliding member may include a third through hole through which the first shaft passes, a fourth through hole through which the second shaft passes, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion. The folding portion of the flexible display may be at least partially positioned between an imaginary straight line connecting an upper end of the third spiral portion and an upper end of the fourth spiral portion of the sliding member and the hinge housing when the housing is folded.

[0007] A foldable electronic device according to one embodiment of the present disclosure may include a housing including a first housing, a second housing, and a hinge housing at least partially positioned between the first housing and the second housing, a flexible display at least partially accommodated in the first housing and the second housing, and a hinge module connected to the first housing and the second housing. The hinge module may include a first shaft corresponding to a first rotation axis, a second shaft corresponding to a second rotation axis, and a first sink arm configured to rotate about the first rotation axis while the first housing rotates. The first sink arm may include a first through hole through which the first shaft passes and a first spiral portion. A first cam portion may be formed on a surface of a portion of the first sink arm surrounding the first through hole that faces in a direction parallel to the first rotation axis. The hinge module may include a second sink arm configured to rotate about the second rotation axis while the second housing rotates. The second sink arm may include a second through hole through which the second shaft passes and a second spiral portion. A second cam portion may be formed on a surface of the portion of the second sink arm surrounding the second through hole, the surface facing in a direction parallel to the second rotational axis. The hinge module may include a cam member including a third cam portion corresponding to the first cam portion, a fourth cam portion corresponding to the second cam portion, and a connecting portion connecting the third cam portion and the fourth cam portion. A central portion of the connecting portion may be positioned between an imaginary straight line connecting the first shaft and the second shaft and the hinge housing. The hinge module may include a sliding member configured to move in a direction parallel to the first rotational axis and the second rotational axis while at least one of the first housing or the second housing rotates.The sliding member may include a third through hole through which the first shaft passes, a fourth through hole through which the second shaft passes, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion.

[0008] FIG. 1 is a side view illustrating an example of a first state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0009] FIG. 2 is a perspective view illustrating an example of a first state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0010] FIG. 3 is a side view illustrating an example of a second state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0011] FIG. 4 is a perspective view illustrating an example of a second state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0012] FIG. 5 is a side view illustrating an example of a third state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0013] FIG. 6 is a perspective view illustrating an example of a third state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0014] FIG. 7 is a diagram illustrating configurations of a foldable electronic device according to one embodiment.

[0015] FIG. 8 is a drawing showing configurations of a first hinge structure according to one embodiment.

[0016] FIG. 9 is a drawing showing configurations of a second hinge structure according to one embodiment.

[0017] FIG. 10 is a drawing showing an accommodation space in which a first housing is placed in a foldable electronic device folded by a second hinge structure according to one embodiment.

[0018] FIG. 11 is a perspective view of a hinge module according to one embodiment.

[0019] Figure 12 is an exploded perspective view of the configurations of a hinge module according to one embodiment.

[0020] Figure 13 is an exploded perspective view of the configurations of a hinge module according to one embodiment.

[0021] FIG. 14 is a perspective view showing some components of a hinge module combined according to one embodiment.

[0022] FIG. 15 is a perspective view of a first sink arm according to one embodiment.

[0023] FIG. 16 is a perspective view of a third sink arm according to one embodiment.

[0024] Figure 17 is a perspective view of a sliding member according to one embodiment.

[0025] FIG. 18 is a drawing illustrating a process of combining some components of a hinge module according to one embodiment.

[0026] FIG. 19 is a drawing showing a first sink arm and a third sink arm combined according to one embodiment.

[0027] FIG. 20 is a drawing illustrating movement of a sliding member according to one embodiment.

[0028] FIG. 21 is a cross-sectional view illustrating a cross-section of a flexible display in a foldable electronic device according to one embodiment of the present invention in a folded state.

[0029] FIG. 22 is a drawing illustrating a process of combining rotating arms, a rotating guide bracket, and a hinge housing according to one embodiment.

[0030] Fig. 23 is a perspective view of a rotation guide bracket according to one embodiment.

[0031] Figure 24 is a perspective view of a first rotary arm according to one embodiment.

[0032] FIG. 25 is a perspective view of a hinge housing according to one embodiment.

[0033] FIG. 26 is a cross-sectional view of a hinge module supporting a flexible display in an unfolded state of a foldable electronic device according to one embodiment.

[0034] FIG. 27 is a cross-sectional view of a hinge module that supports a flexible display while a foldable electronic device is folded according to one embodiment.

[0035] FIG. 28 is a cross-sectional view of a hinge module that supports a flexible display in a folded state of a foldable electronic device according to one embodiment.

[0036] FIG. 29 is a drawing illustrating a combination of a rotating arm and a sink arm having different axes of rotation according to one embodiment.

[0037] FIG. 30 is a cross-sectional view of a foldable electronic device in an unfolded state according to one embodiment.

[0038] FIG. 30 is a cross-sectional view of a foldable electronic device while the foldable electronic device is folded according to one embodiment.

[0039] FIG. 32 is a cross-sectional view of a foldable electronic device in a folded state according to one embodiment.

[0040] FIG. 33 is a perspective view of a sliding member including a rib according to one embodiment.

[0041] FIG. 34 is a perspective view of a rotation guide bracket including a rib guide portion according to one embodiment.

[0042] FIG. 35 is a drawing illustrating movement of a rib of a sliding member within a rib guide portion of a rotary guide bracket according to one embodiment.

[0043] FIG. 36 is a perspective view of a hinge module incorporating a sink arm and a cam structure according to one embodiment.

[0044] FIG. 37 is a drawing illustrating a first cam portion of a third sink arm and a third cam portion of a first cam member according to one embodiment.

[0045] FIG. 38 is a layout of the first cam portion of the third sink arm and the third cam portion of the first cam member in an unfolded state of the foldable electronic device according to one embodiment.

[0046] FIG. 39 is a layout of the first cam portion of the third sink arm and the third cam portion of the first cam member while the foldable electronic device according to one embodiment is folded.

[0047] FIG. 40 is a layout of the first cam portion of the third sink arm and the third cam portion of the first cam member in a folded state of a foldable electronic device according to one embodiment.

[0048] Figure 41 is a perspective view of a shaft bracket according to one embodiment.

[0049] FIG. 42 is an arrangement of a flexible display, elastic members, and a hinge housing in a folded state of a foldable electronic device according to one embodiment.

[0050] FIG. 43 is a perspective view of a first ring member and a third ring member coupled to a first shaft according to one embodiment.

[0051] Figure 44 is a perspective view of a fixed bracket according to one embodiment.

[0052] FIG. 45 is a drawing showing shafts coupled to a fixed bracket according to one embodiment.

[0053] FIG. 46 is a drawing illustrating the combination of a hinge housing and a hinge module according to one embodiment.

[0054] FIG. 47 is a drawing illustrating a support plate in an unfolded state of a foldable electronic device according to one embodiment.

[0055] FIG. 48 is a drawing illustrating a support plate of a foldable electronic device in a folded state according to one embodiment.

[0056] FIG. 49 is a layout of a flexible display and a support plate in an unfolded state of a foldable electronic device according to one embodiment.

[0057] FIG. 50 is a layout of a flexible display and a support plate in a folded state of a foldable electronic device according to one embodiment.

[0058] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0059] Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that various modifications, equivalents, and / or alternatives of the embodiments of the present invention are included.

[0060] FIG. 1 is a side view illustrating an example of a first state of a foldable electronic device including a plurality of hinge structures according to one embodiment. FIG. 2 is a perspective view illustrating an example of a first state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0061] According to one embodiment of the present disclosure, a foldable electronic device (100) may include a first housing (110), a second housing (120), a third housing (130), a first hinge structure (140), a second hinge structure (150), and a flexible display (160). The first hinge structure (140) may be disposed between the first housing (110) and the second housing (120). The first hinge structure (140) may rotatably connect the first housing (110) and the second housing (120).

[0062] According to one embodiment, the second hinge structure (150) may be disposed between the second housing (120) and the third housing (130). The second hinge structure (150) may rotatably connect the second housing (120) and the third housing (130). The flexible display (160) may be disposed in at least the first housing (110), the second housing (120), and the third housing (130).

[0063] According to one embodiment, the flexible display (160) can be positioned to span at least a portion of the first hinge structure (140) and the second hinge structure (150). The flexible display (160) can be folded or unfolded by the first hinge structure (140) and the second hinge structure (150).

[0064] According to one embodiment of the present disclosure, the flexible display (160) may include a first region, a second region, and a third region. For example, the first region may be a region disposed in the first housing (110) within the entire region of the flexible display (160). For example, the second region may be a region disposed in the second housing (120) within the entire region of the flexible display (160). For example, the third region may be a region disposed in the third housing (130) within the entire region of the flexible display (160).

[0065] According to one embodiment of the present disclosure, with reference to FIGS. 1 and 2, a first state of the foldable electronic device (100) may include a state in which the foldable electronic device (100) is unfolded by the first hinge structure (140) and unfolded by the second hinge structure (150). For example, in the first state in which the foldable electronic device (100) is unfolded by the first hinge structure (140) and the second hinge structure (150), the first housing (110), the second housing (120), and the third housing (130) may be arranged substantially in parallel. For example, in the first state in which the foldable electronic device (100) is unfolded, the first region, the second region, and the third region of the flexible display (160) may be arranged substantially in parallel. For example, in a first state in which the foldable electronic device (100) is unfolded, the first region, the second region, and the third region of the flexible display (160) may be arranged to face a first direction (e.g., the +z axis direction).

[0066] According to one embodiment of the present disclosure, the foldable electronic device (100) can be sequentially unfolded by the second hinge structure (150) and the first hinge structure (140). For example, the second housing (120) and the third housing (130) can be rotated by the second hinge structure (150). For example, the first housing (110) and the second housing (120) can be rotated by the first hinge structure (140).

[0067] According to one embodiment of the present disclosure, as the second housing (120) and the third housing (130) are rotated by the second hinge structure (150), the second region and the third region of the flexible display (160) may be arranged substantially parallel. For example, the second region and the third region may be arranged to face the first direction. For example, as the second housing (120) and the third housing (130) are rotated by the second hinge structure (150), the second region of the flexible display (160) may move away from the third region.

[0068] According to one embodiment of the present disclosure, as the first housing (110) and the second housing (120) are rotated by the first hinge structure (140), the first region and the second region of the flexible display (160) can be arranged substantially parallel. For example, the first region and the second region can be arranged to face the first direction. For example, as the first housing (110) and the second housing (120) are rotated by the second hinge structure (150), the first region of the flexible display (160) can move away from the second region.

[0069] According to one embodiment of the present disclosure, referring to FIGS. 1 and 2, in a first state of the foldable electronic device (100), the first region, the second region, and the third region of the flexible display (160) can all be arranged to face the first direction.

[0070] FIG. 3 is a side view illustrating an example of a second state of a foldable electronic device including a plurality of hinge structures, according to one embodiment. FIG. 4 is a perspective view illustrating an example of a second state of a foldable electronic device including a plurality of hinge structures, according to one embodiment.

[0071] According to one embodiment of the present disclosure, with reference to FIGS. 3 and 4, the second state of the foldable electronic device (100) may include a state in which the foldable electronic device (100) is folded by the first hinge structure (140) and unfolded by the second hinge structure (150). The first housing (110) and the second housing (120) may be rotated by the first hinge structure (140). For example, in a state in which the foldable electronic device (100) is folded by the first hinge structure (140), the first housing (110) may overlap the second housing (120). For example, as the foldable electronic device (100) is folded by the first hinge structure (140), the first area of ​​the flexible display (160) may come closer to the second area. For example, when the foldable electronic device (100) is folded by the first hinge structure (140), the first region and the second region of the flexible display (160) may overlap. For example, the state in which the first region and the second region overlap may include a state in which the first region and the second region are arranged to face each other. For example, the state in which the first region and the second region overlap may include a state in which the first region is arranged to face the second direction (-z-axis direction) and the second region is arranged to face the first direction.

[0072] FIG. 5 is a side view illustrating an example of a third state of a foldable electronic device including a plurality of hinge structures according to one embodiment. FIG. 6 is a perspective view illustrating an example of a third state of a foldable electronic device including a plurality of hinge structures according to one embodiment.

[0073] According to one embodiment of the present disclosure, with reference to FIGS. 5 and 6, the third state of the foldable electronic device (100) may include a state in which, in the second state, the foldable electronic device (100) is folded by the first hinge structure (140) and folded by the second hinge structure (150). For example, in the third state, the third housing (130) may be arranged to overlap the first housing (110) and the second housing (120). For example, in the third state, the first housing (110), the second housing (120), and the third housing (130) may be arranged to overlap each other. For example, in the third state, the first region and the third region of the flexible display (160) may be arranged to face the first direction, and the second region may be arranged to face the second direction.

[0074] According to one embodiment of the present disclosure, in the third state, the second housing (120) may be disposed between the first housing (110) and the third housing (130). In the third state, the first housing (110) may be disposed or accommodated within a space formed between the second housing (120) and the third housing (130) as the foldable electronic device (100) is folded by the second hinge structure (150). In order to form a space in which the first housing (110) may be disposed or accommodated, the width of the second hinge structure (150) may be wider than the width of the first hinge structure. For example, since the width of the second hinge structure (150) is wider than the width of the first hinge structure (140), the rotation radius of the second housing (120) or the third housing (130) by the second hinge structure (150) may be larger than the rotation radius of the first housing (110) or the second housing (120) by the first hinge structure (140).

[0075] According to one embodiment of the present disclosure, the first housing (110) may include a sub-display (170). For example, the sub-display (170) may be disposed on the opposite side of the first housing (110) from the side on which the flexible display (160) is disposed. In the third state of the foldable electronic device (100), the sub-display (170) disposed in the first housing (110) may be disposed to face the first direction.

[0076] FIG. 7 is a diagram illustrating configurations of a foldable electronic device according to one embodiment.

[0077] According to one embodiment of the present disclosure, a foldable electronic device (100) may include a first housing (110), a second housing (120), a third housing (130), a first hinge structure (140), a second hinge structure (150), a flexible display (160), printed circuit boards (200), flexible printed circuit boards (240), batteries (400), and covers (440).

[0078] According to one embodiment of the present disclosure, a first hinge structure (140) may be disposed between a first housing (110) and a second housing (120) and a flexible display (160). The first hinge structure (140) may rotatably connect the first housing (110) and the second housing (120). As the first housing (110) or the second housing (120) rotates by the first hinge structure (140), a first area or a second area of ​​the flexible display (160) may be folded. The first hinge structure (140) may support at least a portion of the first area and the second area of ​​the flexible display (160).

[0079] According to one embodiment of the present disclosure, the second hinge structure (150) may be disposed between the second housing (120) and the third housing (130) and the flexible display (160). The second hinge structure (150) may rotatably connect the second housing (120) and the third housing (130). As the second housing (120) or the third housing (130) rotates by the second hinge structure (150), the second area or the third area of ​​the flexible display (160) may be folded. The second hinge structure (150) may support at least a portion of the second area and the third area of ​​the flexible display (160).

[0080] According to one embodiment of the present disclosure, a foldable electronic device (100) may include printed circuit boards (200) (PCB) and flexible printed circuit boards (240) (FPCB). The printed circuit boards (200) and the flexible printed circuit boards (240) may electrically connect a plurality of electronic components arranged in the foldable electronic device (100).

[0081] According to one embodiment of the present disclosure, the printed circuit boards (200) may include a first printed circuit board (210), a second printed circuit board (220), and a third printed circuit board (230). The first printed circuit board (210) may be disposed on the other side opposite to one side of the first housing (110) where the first area of ​​the flexible display (160) is disposed. The second printed circuit board (220) may be disposed on the other side opposite to one side of the second housing (120) where the second area of ​​the flexible display (160) is disposed. The third printed circuit board (230) may be disposed on the other side opposite to one side of the third housing (130) where the third area of ​​the flexible display (160) is disposed.

[0082] According to one embodiment of the present disclosure, the flexible printed circuit boards (240) may include a first flexible printed circuit board (250) and a second flexible printed circuit board (260). For example, the first flexible printed circuit board (250) may electrically connect a first printed circuit board (210) disposed on the other side of the first housing (110) and a second printed circuit board (220) disposed on the other side of the second housing (120). The first flexible printed circuit board (250) may be formed of a material that can be bent by the first hinge structure (140). For example, the second flexible printed circuit board (260) may electrically connect a second printed circuit board (220) disposed on the other side of the second housing (120) and a third printed circuit board (230) disposed on the other side of the third housing (130). The second flexible printed circuit board (260) may be formed of a material that can be bent by the second hinge structure (150).

[0083] According to one embodiment of the present disclosure, a foldable electronic device (100) may include covers (440). The covers (440) form an exterior of the foldable electronic device (100) and may protect a plurality of electronic components disposed inside the foldable electronic device (100). The covers (440) may include a first cover (450), a second cover (460), and a third cover (470). The first cover (450) may be disposed to protect the first housing (110) and the electronic components disposed on the other side of the first housing (110). The second cover (460) may be disposed to protect the second housing (120) and the electronic components disposed on the other side of the second housing (120). The third cover (470) may be disposed to protect the third housing (130) and the electronic components disposed on the other side of the third housing (130).

[0084] According to one embodiment of the present disclosure, a foldable electronic device (100) may include batteries (400) capable of supplying power to the foldable electronic device (100). The batteries (400) may include a first battery (410), a second battery (420), and a third battery (430). For example, the first battery (410) may be disposed between a first printed circuit board (210) and a first cover (450). For example, the second battery (420) may be disposed between a second printed circuit board (220) and a second cover (460). For example, the third battery (430) may be disposed between a third printed circuit board (230) and a third cover (470).

[0085] FIG. 8 is a drawing showing configurations of a first hinge structure according to one embodiment.

[0086] Referring to FIG. 8, a hinge structure (300a or 300b) according to one embodiment may include a bracket structure (310), an arm structure (320), a rotation structure (330), a cam structure (340), a support (350), a stopper (360), an elastic member (361), and / or a screw (362). The hinge structure (300a or 300b) of FIG. 8 may correspond to the first hinge structure (140).

[0087] According to one embodiment, the bracket structure (310) may include a first bracket (311), a second bracket (312), and a fixed bracket (313).

[0088] In one example, a fixed bracket (313) may be arranged in a hinge housing to support a first bracket (311) and a second bracket (312). A first groove (313a) and a second groove (313b) may be formed on an upper surface of the fixed bracket (313) (e.g., a surface in the +z direction of FIG. 8), and the first bracket (311) and the second bracket (312) may be coupled to the fixed bracket (313) through the first groove (313a) and the second groove (313b). As one example, the first groove (313a) and the second groove (313b) may be formed in an arc shape having a constant curvature, and the first bracket (311) may be coupled to the first groove (313a), and the second bracket (312) may be coupled to the second groove (313b). According to one embodiment, the first groove (313a) and the second groove (313b) may be formed in an arc shape having the same curvature, but according to another embodiment, the first groove (313a) and the second groove (313b) may be formed in an arc shape having different curvatures. The first groove (313a) may be formed in one area of ​​the fixed bracket (313) adjacent to the first bracket (311) (e.g., the +x direction area in FIG. 8), and the second groove (313b) may be formed in another area of ​​the fixed bracket (313) adjacent to the second bracket (312) (e.g., the -x direction area in FIG. 8). A plurality of gear holes (313d) and a plurality of shaft holes (313e) may be formed on one side of the fixed bracket (313) (e.g., the +y direction surface in FIG. 8). A first idle gear (333), a second idle gear (334), a first shaft (331) and a second shaft (332) can be fastened to one side of the fixed bracket (313) through the gear hole (313d) and the shaft hole (313e).

[0089] In one example, the first bracket (311) may include a first rail portion (311a), a first slide hole (311b), and a plurality of coupling holes (311c). The first rail portion (311a) may be formed to protrude from a region of the first bracket (311). The above-described first rail portion (311a) may be formed in a shape corresponding to the first groove (313a) of the fixed bracket (313), and the first bracket (311) may be coupled to the first groove (313a) of the fixed bracket (313) via the first rail portion (311a). The first slide hole (311b) may be formed in an area of ​​the first bracket (311) adjacent to the first arm portion (321), and the first bracket (311) and the first arm portion (321) may be connected through a first fixing portion (323) penetrating the first slide hole (311b) and the first arm portion (321). The first fixing portion (323) may slide inside the first slide hole (311b) as the foldable electronic device (100) rotates from a folded state to an unfolded state or from an unfolded state to a folded state. A plurality of coupling holes (311c) may be formed on one surface of the first bracket (311) facing the first housing (110) (e.g., a surface in the +z direction of FIG. 8), and the first bracket (311) may be coupled to an area of ​​the first housing (110) through the plurality of coupling holes (311c). The first bracket (311) coupled with the first housing (110) slides along the first groove (313a) of the fixed bracket (313) according to the rotational movement of the first housing (110) and can rotate around the virtual first rotation axis (L1).

[0090] In one example, the second bracket (312) may include a second rail portion (312a), a second slide hole (312b), and a plurality of coupling holes (312c). The second rail portion (312a) may be formed to protrude from one area of ​​the second bracket (312). The second rail portion (312a) may be formed in a shape corresponding to the second groove (313b) of the fixed bracket (313), and the second bracket (312) may be coupled to the second groove (313b) of the fixed bracket (313) via the second rail portion (312a). The second slide hole (312b) may be formed in an area of ​​the second bracket (312) adjacent to the second arm portion (322), and the second bracket (312) and the second arm portion (322) may be connected through a second fixing portion (324) penetrating the second slide hole (312b) and the second arm portion (322). The second fixing portion (324) may slide within the second slide hole (312b) as the foldable electronic device (100) rotates from a folded state to an unfolded state or from an unfolded state to a folded state. A plurality of coupling holes (312c) may be formed on one surface of the second bracket (312) facing the second housing (120) (e.g., the surface in the +z direction of FIG. 8), and the second bracket (312) may be coupled to an area of ​​the second housing (120) through the plurality of coupling holes (312c). The second bracket (312) coupled with the second housing (120) slides along the second groove (313b) of the fixed bracket (313) according to the rotational movement of the second housing (120) and can rotate around a virtual second rotation axis (L2). At this time, the virtual first rotation axis (L1) and the virtual second rotation axis (L2) are parallel, and can be formed on a plane parallel to the flexible display (160) when the foldable electronic device (100) is in a folded state.

[0091] According to one embodiment, the cancer structure (320) may include a first cancer section (321) and a second cancer section (322).

[0092] In one example, the first arm portion (321) may include a first cam portion (321a), a first support rib (321b), a first insertion hole (321c), and a first through hole (321d). A first insertion hole (321c) may be formed in a region of the lower end (e.g., in the -z direction of FIG. 8) of the first arm portion (321), and a first shaft (331), which will be described later, may be inserted into the first insertion hole (321c), so that the first arm portion (321) and the first shaft (331) may be connected. As the first arm portion (321) and the first shaft (331) are connected, the first arm portion (321) may rotate based on the rotation axis of the first shaft (331). The first cam portion (321a) is formed in an area adjacent to the first insertion hole (321c), and may be formed to protrude in the direction of the cam plate (341) (e.g., the +y direction in FIG. 8). The first cam portion (321a) may be formed in a recessed shape with a plurality of mountains and valleys, and the first cam portion (321a) may be arranged to engage with the third cam portion (341a) formed on the cam plate (341), so that the first arm portion (321) may be fixed to the cam plate (341). In addition, the first cam portion (321a) may be arranged to engage with the third cam portion (341a) formed on the cam plate (341), thereby allowing the first arm portion (321) to be fixed at a specified rotation angle and / or a specified rotation angle range, and as a result, the movement of the foldable electronic device (100) may be fixed at the specified rotation angle and / or a specified rotation angle range (e.g., a range from 30˚ to 150˚). The first support rib (321b) may be formed to protrude from one area of ​​the first arm portion (321), and may move the support portion (350) upward (e.g., in the +z direction of FIG. 8) when the foldable electronic device (100) rotates from a folded state to an unfolded state. The first through hole (321d) can be formed in an area opposite to the area where the first insertion hole (321c) of the first female portion (321) is formed (e.g., the +x direction area of ​​FIG. 8).The first fixing part (323) penetrating the first slide hole (311b) can connect the first bracket (311) and the first arm part (321) by penetrating the first through hole (321d). According to one embodiment, a first washer ring (325) is fastened to one end of the first fixing part (323) penetrating the first through hole (321d), so that the first fixing part (323) can be fastened to the first arm part (321). Although not shown in the drawing, according to one embodiment, the first washer ring (325) may be fastened to the other end of the first fixing part (323), so that the first fixing part (323) can be fastened to the first bracket (311). In addition, according to one embodiment, a protrusion is formed in one area of ​​the first bracket (311) (or the first arm portion (321)), and a coupling groove corresponding to the protrusion is formed in one area of ​​the first arm portion (321) (or the first bracket (311)), so that the first bracket (311) and the first arm portion (321) may be connected through the protrusion and coupling groove described above. The first arm portion (321) connected to the first bracket (311) may slide relative to the first bracket (311) and rotate relative to a different rotation axis from the first bracket (311) during the process in which the foldable electronic device (100) rotates from a folded state to an unfolded state or from an unfolded state to a folded state.

[0093] In one example, the second arm portion (322) may include a second cam portion (322a), a second support rib (322b), a second insertion hole (322c), and a second through hole (322d). A second insertion hole (322c) may be formed in a region of a lower end (e.g., in the -z direction of FIG. 8) of the second arm portion (322), and a second shaft (332) may be inserted into the second insertion hole (322c), so that the second arm portion (322) and the second shaft (332) may be connected. As the second arm portion (322) and the second shaft (332) are connected, the second arm portion (322) may rotate about the rotational axis of the second shaft (332). The second cam portion (322a) is formed in an area adjacent to the second insertion hole (322c), and may be formed to protrude in the direction of the cam plate (341) (e.g., the +y direction in FIG. 8). The second cam portion (322a) may be formed in a recessed shape with a plurality of mountains and valleys, similar to the first cam portion (321a), and the second cam portion (322a) may be arranged to engage with the fourth cam portion (341b) formed on the cam plate (341), so that the second arm portion (322) may be fixed to the cam plate (341). In addition, the second cam portion (322a) may be arranged to engage with the fourth cam portion (341b) formed on the cam plate (341), thereby allowing the second arm portion (322) to be fixed at a specified rotation angle and / or a specified rotation angle range (e.g., a rotation angle range of 30° to 150°), and as a result, the movement (or posture) of the foldable electronic device (100) may be fixed at the specified rotation angle and / or the specified rotation angle range. The second support rib (322b) may be formed to protrude from one area of ​​the second arm portion (322), and may move the support portion (350) upward (e.g., in the +z direction of FIG. 8) when the foldable electronic device (100) rotates from a folded state to an unfolded state. The second through hole (322d) may be formed in an area opposite to the second insertion hole (322c).The second fixing part (324) penetrating the second slide hole (312b) can connect the second bracket (312) and the second arm part (322) by penetrating the second through hole (322d). A second washer ring (326) is fastened to one end of the second fixing part (324) penetrating the second through hole (322d), so that the second fixing part (324) can be fastened to the second arm part (322). Although not shown in the drawing, according to one embodiment, the second washer ring (326) may be fastened to the other end of the second fixing part (324), so that the second fixing part (324) can be fastened to the second bracket (312). In addition, according to one embodiment, a protrusion is formed in one area of ​​the second bracket (312) (or the second arm portion (322)), and a coupling groove corresponding to the protrusion is formed in one area of ​​the second arm portion (322) (or the second bracket (312)), so that the second bracket (312) and the second arm portion (322) may be connected through the protrusion and coupling groove described above. The second arm portion (322) connected to the second bracket (312) may rotate about a different rotation axis from the second bracket (312) during the process of the foldable electronic device (100) rotating from a folded state to an unfolded state or rotating from an unfolded state to a folded state.

[0094] According to one embodiment, the rotating structure (330) may include a first shaft (331) coupled with a first gear (331a), a second shaft (332) coupled with a second gear (332a), a first idle gear (333), a second idle gear (334), a shaft bracket (335), and a gear cover (336).

[0095] In one example, one end of the first shaft (331) is fastened to a shaft hole (313e) of a fixed bracket (313), and the other end of the first shaft (331) can pass through a first shaft insertion hole (335a) of a shaft bracket (335). A first arm (321) can be connected to one area of ​​the first shaft (331), and the first arm (321) can rotate around the first shaft (331) as a rotational axis.

[0096] In one example, the second shaft (332) may be positioned adjacent to the first shaft (331), one end of the second shaft (332) may be fastened to a shaft hole (313e) of a fixed bracket (313), and the other end of the second shaft (332) may pass through a second shaft insertion hole (335b) of a shaft bracket (335). A second arm (322) may be connected to one area of ​​the second shaft (332), and the second arm (322) may rotate about the second shaft (332) as a rotation axis.

[0097] In one example, a first idle gear (333) and a second idle gear (334) may be arranged between a first gear (331a) coupled to a first shaft (331) and a second gear (332a) coupled to a second shaft (332). The first idle gear (333) and the second idle gear (334) may be respectively fastened to a plurality of gear holes (313d) of a fixed bracket (313), and the first idle gear (333) and the second idle gear (334) may be rotated while interlocking with each other, thereby allowing the first arm portion (321) and the second arm portion (322) to rotate at the same rotation angle. According to one embodiment, the first idle gear (333) can rotate while meshing with the first gear (331a) and the second idle gear (334), and the second idle gear (334) can rotate while meshing with the first idle gear (333) and the second gear (332a). As the first gear (331a), the second gear (332a), the first idle gear (333), and the second idle gear (334) described above rotate while meshing with each other at the same angle, the first shaft (331) and the second shaft (332) can rotate by the same rotation angle in opposite directions. For example, when the first shaft (331) rotates 30° counterclockwise (e.g., in the +z direction from the +x axis in FIG. 8), the second shaft (332) can rotate 30° clockwise (e.g., in the +z direction from the -x axis in FIG. 5). As the first shaft (331) and the second shaft (332) rotate at the same rotation angle, the first arm (321) and the second arm (322) connected to the first shaft (331) and the second shaft (332) can rotate at the same rotation angle.

[0098] In one example, the shaft bracket (335) may include a first shaft insertion hole (335a) into which the first shaft (331) is inserted and a second shaft hole (335b) into which the second shaft (332) is inserted. The shaft bracket (335) may be disposed within the hinge housing to support the first shaft (331) and the second shaft (332) inserted into the shaft bracket (335) through the first shaft insertion hole (335a) and the second shaft hole (335b).

[0099] In one example, a gear cover (336) can be inserted into the first shaft (331) and the second shaft (332) to protect the first gear (331a), the second gear (332a), the first idle gear (333), and the second idle gear (334). The gear cover (336) can prevent the first gear (331a), the second gear (332a), the first idle gear (333), and the second idle gear (334) from being damaged by external force, and can prevent foreign substances from entering the first gear (331a), the second gear (332a), the first idle gear (333), and the second idle gear (334).

[0100] According to one embodiment, the cam structure (340) may include a cam plate (341), a first spring (342), and a second spring (343).

[0101] In one example, a third shaft insertion hole (341c) into which a first shaft (331) is inserted may be formed in one area of ​​the cam plate (341), and a fourth shaft insertion hole (341d) into which a second shaft (332) is inserted may be formed in another area of ​​the cam plate (341). The cam plate (341) may be connected to the first shaft (331) and the second shaft (332) through the third shaft insertion hole (341c) and the fourth shaft insertion hole (341d). The cam plate (341) may include a third cam portion (341a) formed to protrude toward the first cam portion (321a) of the first arm portion (321), and a fourth cam portion (341b) formed to protrude toward the second cam portion (322a) of the second arm portion (322). The third cam portion (341a) and the fourth cam portion (341b) may be formed as a rough structure in which at least one mountain and valley repeatedly appear. The third cam portion (341a) is arranged to engage with the first cam portion (321a), so that when the foldable electronic device (100) is in a folded or unfolded state, the movement of the first arm portion (321) can be fixed at a specified rotation angle. Similarly, the fourth cam portion (341b) is arranged to engage with the second cam portion (322a), so that when the foldable electronic device (100) is in a folded or unfolded state, the movement of the second arm portion (322) can be fixed at a specified rotation angle.

[0102] According to one embodiment, the pitch between the peaks or valleys of the third cam portion (341a) is formed to be larger than the pitch between the peaks or valleys of the first cam portion (321a), so that even when the third cam portion (341a) and the first cam portion (321a) are engaged, the first arm portion (321) can rotate within a specified rotation range. However, the shape of the third cam portion (341a) is not limited to the above-described embodiment, and according to one embodiment, the pitch between the peaks or valleys of the third cam portion (341a) may be formed to be the same as the pitch between the peaks or valleys of the first cam portion (321a), or the pitch between the peaks or valleys of the first cam portion (321a) may be formed to be larger than the pitch between the peaks or valleys of the third cam portion (341a).

[0103] Similarly, the pitch between the peaks or valleys of the fourth cam portion (341b) is formed to be larger than the pitch between the peaks or valleys of the second cam portion (322a), so that even when the fourth cam portion (341b) and the second cam portion (322a) are engaged, the second arm portion (322) can rotate within a designated rotation range. However, the shape of the fourth cam portion (341b) is not limited to the above-described embodiment, and according to one embodiment, the pitch between the peaks or valleys of the fourth cam portion (341b) may be formed to be the same as the pitch between the peaks or valleys of the second cam portion (322a), or the pitch between the peaks or valleys of the second cam portion (322a) may be formed to be larger than the pitch between the peaks or valleys of the fourth cam portion (341b).

[0104] According to one embodiment, the first spring (342) may be arranged to surround a portion of the first shaft (331), and the second spring (343) may be arranged to surround a portion of the second shaft (332). The first spring (342) and the second spring (343) may be arranged in a compressed state between the cam plate (341) and the shaft bracket (335), thereby allowing the cam plate (341) to be pressed against the first arm portion (321) and the second arm portion (322). As the cam plate (341) is pressed against the first arm portion (321) and the second arm portion (322), the engagement state of the third cam portion (341a) and the first cam portion (321a), and the engagement state of the fourth cam portion (341b) and the second cam portion (322a) may be maintained.

[0105] According to one embodiment, when the mountain of the third cam (341a) and the mountain of the first cam (321a) or the mountain of the fourth cam (341b) and the mountain of the second cam (322a) come into contact with each other due to the rotation of the first arm (321) and the second arm (322), the cam plate (341) may move in one direction (e.g., the +y direction in FIG. 8) of the first shaft (331) and the second shaft (332), so that the first cam (321a) and the third cam (341a) and / or the second cam (322a) and the fourth cam (341b) may be temporarily separated. As the cam plate (341) moves in one direction, the first spring (342) and the second spring (343) may be compressed. When the first arm portion (321) and the second arm portion (322) are further rotated by a predetermined angle, the cam plate (341) can move again toward the first cam portion (321a) and / or the second cam portion (322a) by the elastic restoring force of the first spring (342) and the second spring (343). As a result, the first cam portion (321a) and the third cam portion (341a), and the second cam portion (322a) and the fourth cam portion (341b) are arranged in an interlocked state again, so that the interlocked state of the first cam portion (321a) and the third cam portion (341a), and the second cam portion (322a) and the fourth cam portion (341b) can be maintained.

[0106] According to one embodiment, a flat straight region may be formed in at least one region (e.g., a top region) of a mountain of the first cam portion (321a), a mountain of the second cam portion (322a), a mountain of the third cam portion (341a), and / or a mountain of the fourth cam portion (341b). Similarly, a flat straight region may be formed in at least one region of a valley of the first cam portion (321a), a valley of the second cam portion (322a), a valley of the third cam portion (341a), and / or a valley of the fourth cam portion (341b). The straight region formed in one region of the aforementioned mountain and the straight region formed in one region of the valley may be formed substantially the same as or similar to each other. As straight areas are formed in the peaks and valleys of the first cam portion (321a), the second cam portion (322a), the third cam portion (341a), and the fourth cam portion (341b), the movement of the first arm portion (321) and / or the second arm portion (322) can be fixed at a specified rotation angle (e.g., 30˚ or 60˚) and / or a specified rotation angle range (e.g., a rotation angle range of 30˚ to 150˚). As the movement of the first arm portion (321) and / or the second arm portion (322) is fixed at the specified rotation angle, the movement of the first housing (110) and the second housing (120) of the electronic device can be fixed at the specified rotation angle.

[0107] According to one embodiment, the support (350) may be disposed in an empty space between the first arm (321) and the second arm (322), and the first shaft (331) and the second shaft (332). The support (350) may support a portion of the flexible display (160) that is not supported by the first arm (321) and / or the second arm (322) when the foldable electronic device (100) is in an unfolded state. The support (350) described above may move upward (e.g., in the +z direction of FIG. 8) by the first support rib (321b) formed in a portion of the first arm (321) and the second support rib (322b) formed in a portion of the second arm (322). As an example, when the foldable electronic device (100) rotates from a folded state to an unfolded state, the first support rib (321b) and the second support rib (322b) may come into contact with a region of the support portion (350), and as the first arm portion (321) and the second arm portion (322) rotate, the support portion (350) may move in an upward direction (e.g., from the -z direction to the +z direction in FIG. 8) by the first support rib (321b) and the second support rib (322b).

[0108] According to one embodiment, the stopper (360) may be positioned at the lower end of the support (350) (e.g., in the -z direction of FIG. 8). A fifth shaft insertion hole (360a) may be formed in one area of ​​the stopper (360), and a sixth shaft insertion hole (360b) may be formed in one area opposite to the fifth shaft insertion hole (360a). The first shaft (331) and the second shaft (332) may be inserted through the fifth shaft insertion hole (360a) and the sixth shaft insertion hole (360b), and the first shaft (331), the second shaft (332), and the stopper (360) may be connected through the above-described structure. A through hole (360c) may be formed in an area at the top of the stopper (360) (e.g., in the +z direction of FIG. 8), and a protruding area (351) of the support member (350) may be inserted into the lower direction of the stopper (360) by penetrating the through hole (360c).

[0109] According to one embodiment, a screw (362) may be coupled with a protruding region (351) inserted into the lower portion of a stopper (360), and an elastic member (361) may be disposed between the screw (362) and the stopper (360). The elastic member (361) may be, for example, a spring, but is not limited thereto. The elastic member (361) may be in contact with a region of the stopper (360), and the elastic member (361) may be compressed in a process in which the support member (350) moves upward while the foldable electronic device (100) rotates from a folded state to an unfolded state. Conversely, in a process in which the foldable electronic device (100) rotates from an unfolded state to a folded state, the support member (350) may move downward (e.g., the -z direction of FIG. 8) by the elastic restoring force of the elastic member (361).

[0110] According to one embodiment, the hinge structure (300a or 300b) may further include a first auxiliary member (363) and a second auxiliary member (364). The first auxiliary member (363) may be fastened to one end of the first shaft (331) adjacent to the shaft bracket (335), and the second auxiliary member (364) may be fastened to one end of the second shaft (332) adjacent to the shaft bracket (335). According to one embodiment, a third washer ring (331b) may be fastened to one end of the first shaft (331), so that the first shaft (331) may be fixed to the first auxiliary member (363). Similarly, a fourth washer ring (332b) may be fastened to one end of the second shaft (332), so that the second shaft (332) may be fixed to the second auxiliary member (364). According to one embodiment, a screw nut may be fastened to one end of the first shaft (331) so that the first shaft (331) is fixed to the first auxiliary member (363), or a screw nut may also be fastened to one end of the second shaft (332) so that the second shaft (332) is fixed to the second auxiliary member (364).

[0111] The first auxiliary member (363) may include a third support rib (363a), and the third support rib (363a) may be formed to protrude from one area of ​​the first auxiliary member (363). Similarly, the second auxiliary member (364) may include a fourth support rib (364a), and the fourth support rib (364a) may be formed to protrude from one area of ​​the second auxiliary member (364). The first auxiliary member (363) may rotate at the same rotation angle as the first arm (321) through the first shaft (331), and the second auxiliary member (364) may rotate at the same rotation angle as the second arm (322) through the second shaft (332). The third support rib (363a) and the fourth support rib (364a) can move the support portion (350) upward together with the first support rib (321b) of the first arm portion (321) and the second support rib (322b) of the second arm portion (322) when the electronic device rotates from a folded state to an unfolded state.

[0112] According to one embodiment, the configurations of the second hinge structure (150) may be different from the configurations of the first hinge structure (140) of FIG. 8. However, the present invention is not limited thereto, and the configurations of the first hinge structure (140) and the configurations of the second hinge structure (150) may be the same. For example, the second hinge structure (150) may be implemented by the configurations of the hinge structure (300a or 300b) corresponding to the first hinge structure (140) described above in FIG. 8. Alternatively, the first hinge structure (140) described above may also be implemented by the configurations of the second hinge structure (150). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0113] FIG. 9 is a drawing showing configurations of a second hinge structure according to one embodiment.

[0114] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a second hinge structure (150) disposed between a second housing (120) and a third housing (130). The second hinge structure (150) may rotatably connect the second housing (120) and the third housing (130). For example, the second housing (120) and / or the third housing (130) may be rotated by the second hinge structure (150). As the second housing (120) and / or the third housing (130) are rotated, the foldable electronic device (100) may be folded from a second state to a third state or unfolded from the third state to a second state.

[0115] According to one embodiment of the present disclosure, the second hinge structure (150) may include a hinge module (510), a hinge housing (520), and a support plate (530). The hinge module (510) may include a first hinge module (510-1), a second hinge module (510-2), and a third hinge module (510-3). In the following description, the hinge module (510) may be used as a term meaning at least one of the first hinge module (510-1), the second hinge module (510-2), or the third hinge module (510-3).

[0116] According to one embodiment of the present disclosure, the hinge module (510) may be disposed on the hinge housing (520). For example, the hinge module (510) may be at least partially seated on the hinge housing (520). For example, the hinge housing (520) may support the hinge module (510). The first hinge module (510-1), the second hinge module (510-2), and the third hinge module (510-3) may be disposed on the hinge housing (520). For example, the first hinge module (510-1) and the second hinge module (510-2) may be disposed adjacent to each other on the hinge housing (520). For example, the first hinge module (510-1) and the third hinge module (510-3) may be arranged symmetrically with respect to each other on the hinge housing (520). For example, at least one electronic component may be arranged in the space between the second hinge module (510-2) and the third hinge module (510-3). The arrangement of the hinge module (510) is not limited thereto, and the second hinge structure (150) may be appropriately deformed within a range for rotatably connecting the second housing (120) and the third housing (130).

[0117] According to one embodiment of the present disclosure, the support plate (530) may be disposed on the hinge module (510). For example, at least a portion of the support plate (530) may be mounted on the hinge module (510). For example, by mounting at least a portion of the support plate (530) on the hinge module (510), the hinge module (510) may support the support plate (530). The support plate (530) may support the flexible display (160). For example, in the first state and / or the second state of the foldable electronic device (100), the support plate (530) may partially support the flexible display (160).

[0118] The arrangement of the flexible display (160) and the support plate (530) while the foldable electronic device (100) is folded or unfolded will be described in detail in FIGS. 47 to 52, which will be described later. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0119] FIG. 10 is a drawing showing an accommodation space in which a first housing is placed in a foldable electronic device folded by a second hinge structure according to one embodiment.

[0120] According to one embodiment of the present disclosure, the second housing (120) and / or the third housing (130) may be rotated by the second hinge structure (150). For example, as the state of the foldable electronic device (100) changes from the second state to the third state, the second housing (120) and / or the third housing (130) may be rotated. For example, in the third state of the foldable electronic device (100), the second housing (120) and the third housing (130) may be vertically arranged with respect to the second hinge structure (150).

[0121] According to one embodiment of the present disclosure, in a third state of the foldable electronic device (100), a receiving space (540) may be formed by the second housing (120), the second hinge structure (150), and the third housing (130). For example, the first housing (110) may be placed within the receiving space (540). For example, as the state of the foldable electronic device (100) changes from the second state to the third state, the first housing (110) may rotate and be placed within the receiving space (540).

[0122] According to one embodiment of the present disclosure, the width of the second hinge structure (150) may be formed so that the first housing (110) can be placed within the receiving space (540). For example, in order to form the receiving space (540) in which the first housing (110) is placed, the width of the second hinge structure (150) may be greater than the width of the first hinge structure (140). For example, when the foldable electronic device (100) is viewed in a direction perpendicular to the second hinge structure (150), the width of the second hinge structure (150) may be greater than the width of the first hinge structure (140). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0123] FIG. 11 is a perspective view of a hinge module according to one embodiment.

[0124] According to one embodiment of the present disclosure, the hinge module (510) may include a first rotation arm (610), a second rotation arm (620), a first sink arm (630), a second sink arm (640), a third sink arm (650), a fourth sink arm (660), a rotation guide bracket (670), and a sliding member (680). The configuration of the hinge module (510) is not limited thereto, and some components may be omitted and other components may be further included.

[0125] According to one embodiment of the present disclosure, the hinge module (510) may include a rotation guide bracket (670) disposed on a hinge housing (520). For example, the rotation guide bracket (670) may support the first rotation arm (610) and the second rotation arm (620) while being seated on the hinge housing (520). For example, the rotation guide bracket (670) may guide the rotation of the first rotation arm (610) and the second rotation arm (620) while being disposed on the hinge housing (520). The shape of the rotation guide bracket (670) will be described in detail with reference to FIG. 23 below.

[0126] According to one embodiment of the present disclosure, the first rotation arm (610) and the second rotation arm (620) may be disposed on a rotation guide bracket (670). For example, at least a portion of the first rotation arm (610) may be disposed on one side of the rotation guide bracket (670). For example, at least a portion of the second rotation arm (620) may be disposed on the other side of the rotation guide bracket (670).

[0127] According to one embodiment of the present disclosure, the first rotation arm (610) and the second rotation arm (620) may be mounted on a rotation guide bracket (670). For example, at least a portion of the first rotation arm (610) may be guided to rotate while mounted on one side of the rotation guide bracket (670). For example, at least a portion of the second rotation arm (620) may be guided to rotate while mounted on the other side of the rotation guide bracket (670).

[0128] According to one embodiment of the present disclosure, the first rotation arm (610) and the second rotation arm (620) may be arranged to overlap at least a portion of the rotation guide bracket (670) so that rotation is guided by the rotation guide bracket (670). For example, at least a portion of the first rotation arm (610) may be arranged to overlap one side of the rotation guide bracket (670). For example, at least a portion of the second rotation arm (620) may be arranged to overlap the other side of the rotation guide bracket (670).

[0129] The shapes of the first rotation arm (610) and the second rotation arm (620) and the arrangement of the first rotation arm (610), the second rotation arm, and the rotation guide bracket (670) will be described in detail in FIGS. 23 and 24 to be described later.

[0130] According to one embodiment of the present disclosure, the first sink arm (630) may be connected to the first rotation arm (610). For example, as the first rotation arm (610) rotates, the first sink arm (630) connected to the first rotation arm (610) may rotate together with the first rotation arm (610). The second sink arm (640) may be connected to the second rotation arm (620). For example, as the second rotation arm (620) rotates, the second sink arm (640) connected to the second rotation arm (620) may rotate together with the second rotation arm (620). The connection structure of the first rotation arm (610) and the first sink arm (630) and the connection structure of the second rotation arm (620) and the second sink arm (640) will be described in detail in FIGS. 29 to 32.

[0131] According to one embodiment of the present disclosure, the third sink arm (650) may be connected to the first sink arm (630). For example, the first sink arm (630) and the third sink arm (650) may be connected and rotate together. The fourth sink arm (660) may be connected to the second sink arm (640). For example, the second sink arm (640) and the fourth sink arm (660) may be connected and rotate together. The first sink arm (630) and the third sink arm (650) may be formed as separate members or may be formed as one piece. The second sink arm (640) and the fourth sink arm (660) may be formed as separate members or may be formed as one piece. The connection relationship between the first sink arm (630) and the third sink arm (650) will be described in detail later in FIG. 19.

[0132] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a sliding member (680) formed to guide rotation of the first sink arm (630), the second sink arm (640), the third sink arm (650), and the fourth sink arm (660). One side of the sliding member (680) may be disposed between the first sink arm (630) and the third sink arm (650). For example, one side of the sliding member (680) may be disposed between at least a portion of the first sink arm (630) and at least a portion of the third sink arm (650) so as to contact at least a portion of the first sink arm (630) and at least a portion of the third sink arm (650). The other side of the sliding member (680) may be disposed between the third sink arm (650) and the fourth sink arm (660). For example, the other side of the sliding member (680) may be positioned between at least a portion of the third sink arm (650) and at least a portion of the fourth sink arm (660) so as to contact at least a portion of the third sink arm (650) and at least a portion of the fourth sink arm (660).

[0133] According to one embodiment of the present disclosure, a connecting portion connecting one side and the other side of the sliding member (680) may be positioned adjacent to the rotation guide bracket (670). For example, the connecting portion of the sliding member (680) may be positioned between the combined first sink arm (630) and the combined third sink arm (650) and the combined second sink arm (640) and the combined fourth sink arm (660).

[0134] According to one embodiment of the present disclosure, one side of the sliding member (680) may be formed in a spiral shape to guide rotation of the first sink arm (630) and the third sink arm (650), and the other side of the sliding member (680) may be formed in a spiral shape to guide rotation of the third sink arm (650) and the fourth sink arm (660). The sliding member (680) may move as the first sink arm (630), the second sink arm (640), the third sink arm (650), and / or the fourth sink arm (660) rotate. For example, as the first sink arm (630) and the third sink arm (650) rotate, one side of the sliding member (680) may move between at least a portion of the first sink arm (630) and at least a portion of the third sink arm (650). For example, as the second sink arm (640) and the fourth sink arm (660) rotate, the other side of the sliding member (680) can move between at least a portion of the second sink arm (640) and at least a portion of the fourth sink arm (660).

[0135] The shape and movement of the sliding member (680) will be described later in FIG. 17 and FIG. 20. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0136] Figures 12 and 13 are exploded perspective views of the configurations of a hinge module according to one embodiment.

[0137] Referring to FIG. 12, according to one embodiment, the foldable electronic device (100) may include a first linkage pin (710) connecting a first rotation arm (610), a first sync arm (630), and a third sync arm (650). For example, the first linkage pin (710) may be positioned to penetrate the first rotation arm (610), the first sync arm (630), and the third sync arm (650). By positioning the first linkage pin (710) to penetrate the first rotation arm (610), the first sync arm (630), and the third sync arm (650), the first rotation arm (610), the first sync arm (630), and the third sync arm (650) may rotate together.

[0138] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a second linkage pin (720) connecting the second rotation arm (620), the second sink arm (640), and the fourth sink arm (660). For example, the second linkage pin (720) may be positioned to penetrate the second rotation arm (620), the second sink arm (640), and the fourth sink arm (660). By positioning the second linkage pin (720) to penetrate the second rotation arm (620), the second sink arm (640), and the fourth sink arm (660), the second rotation arm (620), the second sink arm (640), and the fourth sink arm (660) may rotate together.

[0139] The interlocking structure of the first rotation arm (610), the first sink arm (630), and the third sink arm (650) and the interlocking structure of the second rotation arm (620), the second sink arm (640), and the fourth sink arm (660) will be described in detail in FIGS. 29 to 32 to be described later. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0140] Referring to FIG. 13, according to one embodiment, the foldable electronic device (100) may include a first shaft (730) connecting a first sink arm (630), a sliding member (680), a third sink arm (650), a first cam member (810), a first elastic member (820), a first shaft bracket (840), a third elastic member (860), and a second shaft bracket (880).

[0141] According to one embodiment of the present disclosure, at least a portion of the first sink arm (630) and at least a portion of the third sink arm (650) connected to the first sink arm (630) can be connected to a first shaft (730) and rotated. For example, the first shaft (730) can be arranged to penetrate at least a portion of the first sink arm (630) and at least a portion of the third sink arm (650). The first sink arm (630) and the third sink arm (650) can be connected to the first shaft (730) and rotated about the first shaft (730) as a rotational axis.

[0142] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a second shaft (740) connecting a second sink arm (640), a sliding member (680), a fourth sink arm (660), a first cam member (810), a second elastic member (830), a first shaft bracket (840), a fourth elastic member (870), and a second shaft bracket (880).

[0143] According to one embodiment of the present disclosure, at least a portion of the second sink arm (640) and at least a portion of the fourth sink arm (660) connected to the second sink arm (640) can be connected to a second shaft (740) and rotated. For example, the second shaft (740) can be arranged to penetrate at least a portion of the second sink arm (640) and at least a portion of the fourth sink arm (660). The second sink arm (640) and the fourth sink arm (660) can be connected to the second shaft (740) and rotated about the second shaft (740) as a rotational axis.

[0144] According to one embodiment of the present disclosure, one side of the sliding member (680) may be connected to a first shaft (730), and the other side of the sliding member (680) may be connected to a second shaft (740). For example, the first shaft (730) may be arranged to penetrate one side of the sliding member (680), and the second shaft (740) may be arranged to penetrate the other side of the sliding member (680).

[0145] According to one embodiment of the present disclosure, as the first sink arm (630) and the third sink arm (650) rotate about the first shaft (730) as a rotational axis, one side of the sliding member (680) can move along the first shaft (730). For example, one side of the sliding member (680) can move along the first shaft (730) between at least a portion of the first sink arm (630) and at least a portion of the third sink arm (650).

[0146] According to one embodiment of the present disclosure, as the second sink arm (640) and the fourth sink arm (660) rotate about the second shaft (740) as a rotational axis, the other side of the sliding member (680) can move along the second shaft (740). For example, the other side of the sliding member (680) can move along the second shaft (740) between at least a portion of the second sink arm (640) and at least a portion of the fourth sink arm (660).

[0147] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a first cam member (810) disposed between a third sink arm (650) and a fourth sink arm (660). For example, one side of the first cam member (810) may be disposed to contact at least a portion of the third sink arm (650). For example, the other side of the first cam member (810) may be disposed to contact at least a portion of the fourth sink arm (660). For example, a connecting portion connecting one side of the first cam member (810) and the other side of the first cam member (810) may be disposed between the sliding member (680) and the first shaft bracket (840).

[0148] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a first elastic member (820) disposed between one side of the first shaft bracket (840) and one side of the first cam member (810). One side of the first cam member (810) may compress the first elastic member (820). For example, as at least a portion of the third sink arm (650) applies force to one side of the first cam member (810), one side of the first cam member (810) may compress the first elastic member (820).

[0149] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a second elastic member (830) disposed between the other side of the first shaft bracket (840) and the other side of the first cam member (810). The other side of the first cam member (810) may compress the second elastic member (830). For example, as at least a portion of the fourth sink arm (660) applies force to the other side of the first cam member (810), one side of the first cam member (810) may compress the first elastic member (820).

[0150] The movement process of the third sink arm (650), the fourth sink arm (660), the first cam member (810), the first elastic member (820), and the second elastic member (830) will be described in detail in FIGS. 37 to 40 below.

[0151] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a first shaft bracket (840) that supports a first elastic member (820) and a second elastic member (830). For example, one side of the first shaft bracket (840) may support the first elastic member (820), and the other side of the first shaft bracket (840) may support the second elastic member (830). For example, the first shaft bracket (840) may support the first elastic member (820) and the second elastic member (830) while the first elastic member (820) and the second elastic member (830) are compressed. For example, the first shaft bracket (840) may prevent the first elastic member (820) and the second elastic member (830) from being separated from the hinge module (510). The shape of the first shaft bracket (840) will be described in detail in FIG. 41, which will be described later.

[0152] According to one embodiment of the present disclosure, the first shaft bracket (840) may be supported by at least a portion and another portion of the third sink arm (650) and at least a portion and another portion of the fourth sink arm (660). For example, one side of the first shaft bracket (840) may be supported by another portion of the third sink arm (650), and the other side of the first shaft bracket (840) may be supported by another portion of the fourth sink arm (660).

[0153] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a second cam member (850) arranged to contact another portion of the third sink arm (650) and another portion of the fourth sink arm (660). For example, one side of the first shaft bracket (840) may be arranged to contact one side of the other portion of the third sink arm (650), and one side of the second cam member (850) may be arranged to contact the other side of the other portion of the third sink arm (650). For example, the other side of the first shaft bracket (840) may be arranged to contact one side of the other portion of the fourth sink arm (660), and the other side of the second cam member (850) may be arranged to contact the other side of the other portion of the fourth sink arm (660). For example, a connecting portion connecting one side of the second cam member (850) and the other side of the second cam member (850) may be arranged to face the connecting portion of the first shaft bracket (840).

[0154] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a third elastic member (860) disposed between one side of the second cam member (850) and the first ring member (910). One side of the second cam member (850) may compress the third elastic member (860). For example, as at least a portion and another portion of the third sink arm (650) apply force to one side of the second cam member (850), one side of the second cam member (850) may compress the third elastic member (860).

[0155] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a fourth elastic member (870) disposed between the other side of the second cam member (850) and the second ring member (920). The other side of the second cam member (850) may compress the fourth elastic member (870). For example, as at least a portion and another portion of the fourth sink arm (660) apply force to the other side of the second cam member (850), the other side of the second cam member (850) may compress the fourth elastic member (870).

[0156] The second cam member (850), the third elastic member (860), and the fourth elastic member (870) may be configured identically to the first cam member (810), the first elastic member (820), and the second elastic member (830), respectively, or may be configured by being appropriately modified.

[0157] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a second shaft bracket (880) that supports a third elastic member (860) and a fourth elastic member (870). For example, one side of the second shaft bracket (880) may support the third elastic member (860), and the other side of the second shaft bracket (880) may support the fourth elastic member (870). For example, the second shaft bracket (880) may support the third elastic member (860) and the fourth elastic member (870) while the third elastic member (860) and the fourth elastic member (870) are compressed. For example, the second shaft bracket (880) may prevent the third elastic member (860) and the fourth elastic member (870) from being separated from the hinge module (510).

[0158] The shape of the second shaft bracket (880) may be formed in the same manner as the first shaft bracket (840), or may be appropriately modified and implemented.

[0159] According to one embodiment of the present disclosure, a foldable electronic device (100) may include a first ring member (910) supporting one side of a second shaft bracket (880) and a second ring member (920) supporting the other side of the second shaft bracket (880).

[0160] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a third ring member (930) and a fourth ring member (940) that prevent the components connected to the first shaft (730) and the second shaft (740) among the components of the hinge module (510) from being separated from the first shaft (730) and the second shaft (740). For example, the third ring member (930) may be arranged to face the first ring member (910). For example, the fourth ring member (940) may be arranged to face the second ring member (920).

[0161] The shapes of the first ring member (910), the second ring member (920), the third ring member (930), and the fourth ring member (940) will be described in detail in FIG. 43 below.

[0162] According to one embodiment of the present disclosure, the foldable electronic device (100) may include a fixing bracket (950) connected to one end of a first shaft (730) and one end of a second shaft (740). For example, the first shaft (730) and the second shaft (740) may be fixed to a hinge housing (520) through the fixing bracket (950). For example, the fixing bracket (950) connected to the first shaft (730) and the second shaft (740) may be fastened to and fixed to the hinge housing (520).

[0163] The shape of the fixed bracket (950) and the connection structure with the hinge housing (520) will be described later in FIGS. 44 to 46. In this way, a foldable electronic device (100) having an optimized connection structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0164] FIG. 14 is a perspective view showing some components of a hinge module combined according to one embodiment.

[0165] FIG. 14 may be a drawing illustrating a state in which some of the components of the hinge module (510), namely, a first shaft (730), a second shaft (740), a first sink arm (630), a second sink arm (640), a third sink arm (650), a fourth sink arm (660), a sliding member (680), and a first cam structure (1000), are coupled according to one embodiment. For example, the first cam structure (1000) may be a structure in which a first cam member (810), a first elastic member (820), a second elastic member (830), and a first shaft bracket (840) are coupled. The shapes and coupling processes of some of the components of the hinge module (510) of FIG. 11 will be described in detail with reference to FIGS. 15 to 18 to be described below.

[0166] FIG. 15 is a perspective view of a first sink arm according to one embodiment.

[0167] According to one embodiment of the present disclosure, although only the shape of the first sink arm (630) is illustrated in FIG. 15, the shape of the second sink arm (640) may be formed symmetrically with the first sink arm (630).

[0168] According to one embodiment of the present disclosure, the first sink arm (630) may include a first body portion (1010) including a first protrusion (1020), a first recess (1030), a first insertion hole (1040), a second insertion hole (1050), a first through hole (1060), and a first spiral portion (1070).

[0169] According to one embodiment of the present disclosure, the first protrusion (1020) may be formed on one side of the first body portion (1010). For example, the first protrusion (1020) may be formed to protrude in a direction parallel to the rotation axis of the first sink arm (630). For example, the first protrusion (1020) may be formed parallel to the first shaft (730) corresponding to the rotation axis of the first sink arm (630).

[0170] According to one embodiment of the present disclosure, the first recess (1030) may be formed on one side of the first body portion (1010). For example, the first recess (1030) may be formed to be sunken in a direction parallel to the rotational axis of the first sink arm (630). For example, the first recess (1030) may be formed parallel to the first shaft (730) corresponding to the rotational axis of the first sink arm (630). The first recess (1030) may be formed on one side of the first body portion (1010) so as to be adjacent to the first protrusion (1020).

[0171] According to one embodiment of the present disclosure, the first sink arm (630) can be connected to the third sink arm (650) via the first protrusion (1020) and the first recess (1030). For example, the first sink arm (630) and the third sink arm (650) can be connected via the first protrusion (1020) and the first recess (1030) such that the first sink arm (630) and the third sink arm (650) can rotate together. The connection of the first sink arm (630) and the third sink arm (650) will be described in detail later in FIG. 19.

[0172] According to one embodiment of the present disclosure, the first body portion (1010) of the first sink arm (630) may include a first insertion hole (1040) formed on an opposite side of the first body portion (1010) and a second insertion hole (1050) formed on one side of the first body portion (1010). For example, the first insertion hole (1040) and the second insertion hole (1050) may be formed symmetrically. The first linkage pin (710) coupled to the first rotation arm (610) may be arranged to penetrate the first insertion hole (1040) and the second insertion hole (1050) of the first sink arm (630). For example, the first linkage pin (710) coupled to the first rotation arm (610) is arranged to penetrate the first insertion hole (1040) and the second insertion hole (1050) of the first sink arm (630), so that the first rotation arm (610) and the first sink arm (630) are connected and can rotate together. The linkage structure of the first rotation arm (610) and the first sink arm (630) will be described in detail in FIGS. 30 to 32 to be described later.

[0173] According to one embodiment of the present disclosure, the first sink arm (630) may include a first through hole (1060) formed on a surface perpendicular to one side and / or the other side of the first body portion (1010). The first shaft (730) may be arranged to pass through the first through hole (1060) of the first sink arm (630). For example, the first sink arm (630) may rotate about the first shaft (730) coupled to the first sink arm (630) through the first through hole (1060) as a rotational axis. For example, the surface including the first through hole (1060) may be a surface facing in a direction parallel to the first shaft (730) corresponding to the rotational axis.

[0174] According to one embodiment of the present disclosure, the first sink arm (630) may include a first spiral portion (1070) extending from a surface where the first through hole (1060) is formed. For example, the first spiral portion (1070) of the first sink arm (630) may be a portion extending in a direction toward one side of the first body portion (1010) of the first sink arm (630). For example, the first spiral portion (1070) may be formed to surround at least a portion of a first shaft (730) disposed to penetrate the first through hole (1060). For example, the first spiral portion (1070) may be formed in a spiral shape to surround at least a portion of the first shaft (730). The first spiral portion (1070) of the first sink arm (630) can be formed in a shape corresponding to the spiral portion of the sliding member (680) of FIG. 17, which will be described later (e.g., the fifth spiral portion (1240) of FIG. 17).

[0175] According to one embodiment of the present disclosure, the second sink arm (640) may include a second body portion including a second protrusion, a second recess, a third insertion hole, a fourth insertion hole, a second through hole, and a second spiral portion.

[0176] According to one embodiment of the present disclosure, the second protrusion may be formed on one side of the second body portion. For example, the second protrusion may be formed to protrude in a direction parallel to the rotational axis of the second sink arm (640). For example, the second protrusion may be formed parallel to the second shaft (740) corresponding to the rotational axis of the second sink arm (640).

[0177] According to one embodiment of the present disclosure, the second recess may be formed on one side of the second body portion. For example, the second recess may be formed to be sunken in a direction parallel to the rotational axis of the second sink arm (640). For example, the second recess may be formed parallel to the second shaft (740) corresponding to the rotational axis of the second sink arm (640). The second recess may be formed on one side of the second body portion so as to be adjacent to the second protrusion.

[0178] According to one embodiment of the present disclosure, the second sink arm (640) can be connected to the fourth sink arm (660) through the second protrusion and the second recess. For example, the second sink arm (640) and the fourth sink arm (660) can be connected through the second protrusion and the second recess, such that the second sink arm (640) and the fourth sink arm (660) can rotate together. The connection of the second sink arm (640) and the fourth sink arm (660) will be described in detail later in FIG. 19.

[0179] According to one embodiment of the present disclosure, the second body portion of the second sink arm (640) may include a third insertion hole formed on an opposite side of the second body portion and a fourth insertion hole formed on one side of the second body portion. For example, the third insertion hole and the fourth insertion hole may be formed symmetrically. The second linkage pin (720) coupled to the second rotation arm (620) may be arranged to penetrate the third insertion hole and the fourth insertion hole of the second sink arm (640). For example, the second linkage pin (720) coupled to the second rotation arm (620) may be arranged to penetrate the third insertion hole and the fourth insertion hole of the second sink arm (640), whereby the second rotation arm (620) and the second sink arm (640) may be connected and rotate together. The linkage structure of the second rotary arm (620) and the second sink arm (640) will be described in detail in FIGS. 30 to 32 below.

[0180] According to one embodiment of the present disclosure, the second sink arm (640) may include a second through hole formed on a surface perpendicular to one side and / or the other side of the second body portion. The second shaft (740) may be arranged to pass through the second through hole of the second sink arm (640). For example, the second sink arm (640) may rotate about the second shaft (740) coupled to the second sink arm (640) through the second through hole as a rotational axis. For example, the surface including the second through hole may be a surface facing in a direction parallel to the second shaft (740) corresponding to the rotational axis.

[0181] According to one embodiment of the present disclosure, the second sink arm (640) may include a second spiral portion extending from a surface where the second through hole is formed. For example, the second spiral portion of the second sink arm (640) may be a portion extending in a direction toward one side of the second body portion of the second sink arm (640). For example, the second spiral portion may be formed to surround at least a portion of a second shaft (740) disposed to penetrate the second through hole. For example, the second spiral portion may be formed in a spiral shape to surround at least a portion of the second shaft (740). The second spiral portion of the second sink arm (640) may be formed in a shape corresponding to a spiral portion of a sliding member (680) of FIG. 17, which will be described later (e.g., the sixth spiral portion (1250) of FIG. 17). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0182] FIG. 16 is a perspective view of a third sink arm according to one embodiment.

[0183] According to one embodiment of the present disclosure, although only the shape of the third sink arm (650) is illustrated in FIG. 16, the shape of the fourth sink arm (660) may be formed symmetrically with the third sink arm (650).

[0184] According to one embodiment of the present disclosure, the third sink arm (650) may include a third body portion (1110) including a third protrusion (1120), a third recess (1130), a fifth insertion hole (1140), a third through hole (1150), a fifth through hole (1160), a third spiral portion (1170), a first cam portion (1180), and a third cam portion (1190).

[0185] According to one embodiment of the present disclosure, the third protrusion (1120) may be formed on one side of the third body portion (1110). For example, one side of the third body portion (1110) may be a side facing one side of the first sink arm (630). For example, the third protrusion (1120) may be formed to protrude in a direction parallel to the rotation axis of the third sink arm (650). For example, the third protrusion (1120) may be formed parallel to the first shaft (730) corresponding to the rotation axis of the third sink arm (650). For example, the third protrusion (1120) may protrude toward the first recess (1030) of the first sink arm (630).

[0186] According to one embodiment of the present disclosure, the third recess (1130) may be formed on one side of the third body portion (1110). For example, the third recess (1130) may be formed to be sunken in a direction parallel to the rotation axis of the third sink arm (650). For example, the third recess (1130) may be formed parallel to the first shaft (730) corresponding to the rotation axis of the third sink arm (650). The third recess (1130) may be formed on one side of the third body portion (1110) so as to be adjacent to the third protrusion (1120). For example, the third recess (1130) may be formed at a position facing the first protrusion (1020) of the first sink arm (630).

[0187] According to one embodiment of the present disclosure, the third sink arm (650) can be connected to the first sink arm (630) via the third protrusion (1120) and the third recess (1130). For example, the third sink arm (650) and the first sink arm (630) can be connected via the third protrusion (1120) and the third recess (1130) such that the third sink arm (650) and the first sink arm (630) can rotate together. The connection of the first sink arm (630) and the third sink arm (650) will be described in detail later in FIG. 19.

[0188] According to one embodiment of the present disclosure, the third body portion (1110) of the third sink arm (650) may include a fifth insertion hole (1140) formed on one side of the third body portion (1110). For example, the fifth insertion hole (1140) may be formed at a position facing the second insertion hole (1050) of the first sink arm (630). The first linkage pin (710) connected to the first sink arm (630) through the first insertion hole (1040) and the second insertion hole (1050) of the first sink arm (630) may be arranged to pass through the fifth insertion hole (1140) of the third sink arm (650). For example, the first linkage pin (710) coupled to the first sink arm (630) is arranged to penetrate the fifth insertion hole (1140) of the third sink arm (650), so that the first sink arm (630) and the third sink arm (650) are connected and can rotate together. The linkage structure of the first rotation arm (610), the first sink arm (630), and the third sink arm (650) will be described in detail in FIGS. 30 to 32 to be described later.

[0189] According to one embodiment of the present disclosure, the third sink arm (650) may include a third through hole (1150) formed on a surface perpendicular to one side and / or the other side of the third body part (1110). The third sink arm (650) may include a fifth through hole (1160) formed on a surface parallel to the surface perpendicular to the one side and / or the other side of the third body part (1110). For example, the one surface and the other surface of the third sink arm (650) formed perpendicular to the one side and / or the other side of the third body part (1110) may be arranged to be spaced apart from each other by a predetermined distance.

[0190] According to one embodiment of the present disclosure, the first shaft (730) may be arranged to pass through the third through hole (1150) and the fifth through hole (1160) of the third sink arm (650). For example, the third sink arm (650) may rotate about the first shaft (730) coupled to the third sink arm (650) through the third through hole (1150) and the fifth through hole (1160) as a rotation axis. For example, one surface including the third through hole (1150) and the other surface including the fifth through hole (1160) may be a surface facing in a direction parallel to the first shaft (730) corresponding to the rotation axis.

[0191] According to one embodiment of the present disclosure, the third sink arm (650) may include a third spiral portion (1170) extending from one surface in which the third through hole (1150) is formed. For example, the third spiral portion (1170) of the third sink arm (650) may be a portion extending in a direction toward one side of the third body portion (1110) of the third sink arm (650). For example, the third spiral portion (1170) may be a portion extending toward the first spiral portion (1070) of the first sink arm (630). For example, the third spiral portion (1170) may be formed to surround at least a portion of the first shaft (730) disposed to pass through the third through hole (1150). For example, the third spiral portion (1170) may be formed in a spiral shape to surround at least a portion of the first shaft (730). The third spiral portion (1170) of the third sink arm (650) may be formed in a shape corresponding to the spiral portion of the sliding member (680) of FIG. 17, which will be described later (e.g., the seventh spiral portion (1260) of FIG. 17).

[0192] According to one embodiment of the present disclosure, the third sink arm (650) may include a first cam portion (1180) formed on one surface surrounding the third through hole (1150). For example, the one surface surrounding the third through hole (1150) may be a surface facing in a direction parallel to the rotational axis of the third sink arm (650). For example, the first cam portion (1180) may be a portion that comes into contact with one side of the first cam member (810).

[0193] According to one embodiment of the present disclosure, the third sink arm (650) may include a third cam portion (1190) formed on one surface surrounding the fifth through hole (1160). For example, the one surface surrounding the fifth through hole (1160) may be a surface facing in a direction parallel to the rotational axis of the third sink arm (650). For example, the third cam portion (1190) may be a portion that comes into contact with one side of the second cam member (850).

[0194] The shapes of the first cam part (1180) and the third cam part (1190) and examples of the first cam part (1180) and the third cam part (1190) coming into contact with the first cam member (810) and the second cam member (850), respectively, as the third sink arm (650) rotates will be described in detail in FIGS. 37 to 40.

[0195] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a fourth body portion including a fourth protrusion, a fourth recess, a sixth insertion hole, a fourth through hole, a sixth through hole, a fourth spiral portion, a second cam portion, and a fourth cam portion.

[0196] According to one embodiment of the present disclosure, the fourth protrusion may be formed on one side of the fourth body part. For example, the one side of the fourth body part may be a side facing one side of the second sink arm (640). For example, the fourth protrusion may be formed to protrude in a direction parallel to the rotation axis of the fourth sink arm (660). For example, the fourth protrusion may be formed parallel to the second shaft (740) corresponding to the rotation axis of the fourth sink arm (660). For example, the fourth protrusion may protrude toward the second recess of the second sink arm (640).

[0197] According to one embodiment of the present disclosure, the fourth recess may be formed on one side of the fourth body portion. For example, the fourth recess may be formed to be sunken in a direction parallel to the rotation axis of the fourth sink arm (660). For example, the fourth recess may be formed parallel to the second shaft (740) corresponding to the rotation axis of the fourth sink arm (660). The fourth recess may be formed on one side of the fourth body portion so as to be adjacent to the fourth protrusion. For example, the fourth recess may be formed at a position facing the second protrusion of the second sink arm (640).

[0198] According to one embodiment of the present disclosure, the fourth sink arm (660) can be connected to the second sink arm (640) through the fourth protrusion and the fourth recess. For example, the fourth sink arm (660) and the second sink arm (640) can be connected through the fourth protrusion and the fourth recess, such that the fourth sink arm (660) and the second sink arm (640) can rotate together. The connection of the second sink arm (640) and the fourth sink arm (660) will be described in detail later with reference to FIG. 19.

[0199] According to one embodiment of the present disclosure, the fourth body portion of the fourth sink arm (660) may include a sixth insertion hole formed on one side of the fourth body portion. For example, the sixth insertion hole may be formed at a position facing the fourth insertion hole of the second sink arm (640). The second linkage pin (720) connected to the second sink arm (640) through the third insertion hole and the fourth insertion hole of the second sink arm (640) may be arranged to penetrate the sixth insertion hole of the fourth sink arm (660). For example, the second linkage pin (720) coupled to the second sink arm (640) may be arranged to penetrate the sixth insertion hole of the fourth sink arm (660), whereby the second sink arm (640) and the fourth sink arm (660) may be connected and rotate together. The interlocking structure of the second rotary arm (620), the second sink arm (640), and the fourth sink arm (660) will be described in detail in FIGS. 30 to 32 below.

[0200] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a fourth through hole formed on a surface perpendicular to one side and / or the other side of the fourth body portion. The fourth sink arm (660) may include a sixth through hole formed on a surface parallel to the surface perpendicular to the one side and / or the other side of the fourth body portion. For example, the one surface and the other surface of the fourth sink arm (660) formed perpendicular to the one side and / or the other side of the fourth body portion may be arranged to be spaced apart from each other by a predetermined distance.

[0201] According to one embodiment of the present disclosure, the second shaft (740) may be arranged to penetrate the fourth through hole and the sixth through hole of the fourth sink arm (660). For example, the fourth sink arm (660) may rotate about the second shaft (740) coupled to the fourth sink arm (660) through the fourth through hole and the sixth through hole as a rotation axis. For example, one surface including the fourth through hole and the other surface including the sixth through hole may be a surface facing in a direction parallel to the second shaft (740) corresponding to the rotation axis.

[0202] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a fourth spiral portion extending from one surface where the fourth through hole is formed. For example, the fourth spiral portion of the fourth sink arm (660) may be a portion extending in a direction toward one side of the fourth body portion of the fourth sink arm (660). For example, the fourth spiral portion may be a portion extending toward the second spiral portion of the second sink arm (640). For example, the fourth spiral portion may be formed to surround at least a portion of the second shaft (740) disposed to penetrate the fourth through hole. For example, the fourth spiral portion may be formed in a spiral shape to surround at least a portion of the second shaft (740). The fourth spiral portion of the fourth sink arm (660) can be formed in a shape corresponding to the spiral portion of the sliding member (680) of FIG. 17, which will be described later (e.g., the eighth spiral portion (1270) of FIG. 17).

[0203] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a second cam portion formed on one surface surrounding the fourth through hole. For example, the one surface surrounding the fourth through hole may be a surface facing in a direction parallel to the rotational axis of the fourth sink arm (660). For example, the second cam portion may be a portion that comes into contact with the other side of the first cam member (810).

[0204] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a fourth cam portion formed on one surface surrounding the sixth through hole. For example, the one surface surrounding the sixth through hole may be a surface facing in a direction parallel to the rotational axis of the fourth sink arm (660). For example, the fourth cam portion may be a portion that comes into contact with the other side of the second cam member (850).

[0205] Examples of the shapes of the second cam and the fourth cam and the fourth sink arm (660) rotating, in which the second cam and the fourth cam come into contact with the first cam member (810) and the second cam member (850), respectively, will be described in detail in FIGS. 37 to 40 below. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0206] Figure 17 is a perspective view of a sliding member according to one embodiment.

[0207] According to one embodiment of the present disclosure, the sliding member (680) may include a connecting portion (1210), a seventh through hole (1220), an eighth through hole (1230), a fifth spiral portion (1240), a sixth spiral portion (1250), a seventh spiral portion (1260), and an eighth spiral portion (1270). For example, the seventh through hole (1220), the fifth spiral portion (1240), and the seventh spiral portion (1260) may be formed on one side of the sliding member (680). For example, the eighth through hole (1230), the sixth spiral portion (1250), and the eighth spiral portion (1270) may be formed on the other side opposite to one side of the sliding member (680). For example, the connecting portion (1210) of the sliding member (680) can connect one side of the sliding member (680) where the seventh through hole (1220), the fifth spiral portion (1240), and the seventh spiral portion (1260) are formed, to the other side of the sliding member (680) where the eighth through hole (1230), the sixth spiral portion (1250), and the eighth spiral portion (1270) are formed.

[0208] According to one embodiment of the present disclosure, the connecting portion (1210) of the sliding member (680) may be disposed between the rotation guide bracket (670) of the hinge module (510) and the first cam member (810). At least a portion of the connecting portion (1210) of the sliding member (680) may be formed to be convex in a direction toward the hinge housing (520) more than the upper end of one side and the upper end of the other side of the sliding member (680). For example, at least a portion of the connecting portion (1210) of the sliding member (680) may be formed to be convex in a direction perpendicular to the rotation axis of the first sink arm (630) and / or the rotation axis of the second sink arm (640). For example, the connecting portion (1210) of the sliding member (680) may be positioned between an imaginary straight line connecting the upper portion of the fifth spiral portion (1240) and the upper portion of the sixth spiral portion (1250) of the sliding member (680) and the hinge housing (520).

[0209] According to one embodiment of the present disclosure, a seventh through hole (1220) through which a first shaft (730) passes may be formed on one side of the sliding member (680). For example, the first through hole (1060) of the first sink arm (630) may be connected to the seventh through hole (1220) of the sliding member (680) by the first shaft (730) inserted into the first through hole (1060) of the first sink arm (630) and the seventh through hole (1220) of the sliding member (680). For example, the first shaft (730) connected to one side of the sliding member (680) through the seventh through hole (1220) of the sliding member (680) may be connected to the third sink arm (650) through the third through hole (1150) of the third sink arm (650).

[0210] According to one embodiment of the present disclosure, an eighth through hole (1230) through which a second shaft (740) passes may be formed on the other side of the sliding member (680). For example, the second through hole of the second sink arm (640) may be connected to the eighth through hole (1230) of the sliding member (680) by the second shaft (740) inserted into the second through hole of the second sink arm (640) and the eighth through hole (1230) of the sliding member (680). For example, the second shaft (740) connected to the other side of the sliding member (680) through the eighth through hole (1230) of the sliding member (680) may be connected to the fourth sink arm (660) through the fourth through hole of the fourth sink arm (660).

[0211] According to one embodiment of the present disclosure, one side of the sliding member (680) may include a fifth spiral portion (1240) corresponding to the first spiral portion (1070) of the first sink arm (630). For example, the fifth spiral portion (1240) of the sliding member (680) may be formed in a spiral shape corresponding to the spiral shape of the first spiral portion (1070) of the first sink arm (630). For example, the fifth spiral portion (1240) of the sliding member (680) may be formed to engage with the first spiral portion (1070) of the first sink arm (630).

[0212] According to one embodiment of the present disclosure, one side of the sliding member (680) may include a seventh spiral portion (1260) corresponding to the third spiral portion (1170) of the third sink arm (650). For example, the seventh spiral portion (1260) of the sliding member (680) may be formed in a spiral shape corresponding to the spiral shape of the third spiral portion (1170) of the third sink arm (650). For example, the seventh spiral portion (1260) of the sliding member (680) may be formed to engage with the third spiral portion (1170) of the third sink arm (650).

[0213] According to one embodiment of the present disclosure, the other side of the sliding member (680) may include a sixth spiral portion (1250) corresponding to the second spiral portion of the second sink arm (640). For example, the sixth spiral portion (1250) of the sliding member (680) may be formed in a spiral shape corresponding to the spiral shape of the second spiral portion of the second sink arm (640). For example, the sixth spiral portion (1250) of the sliding member (680) may be formed to engage with the second spiral portion of the second sink arm (640).

[0214] According to one embodiment of the present disclosure, the other side of the sliding member (680) may include an eighth spiral portion (1270) corresponding to the fourth spiral portion of the fourth sink arm (660). For example, the eighth spiral portion (1270) of the sliding member (680) may be formed in a spiral shape corresponding to the spiral shape of the fourth spiral portion of the fourth sink arm (660). For example, the eighth spiral portion (1270) of the sliding member (680) may be formed to engage with the fourth spiral portion of the fourth sink arm (660).

[0215] According to one embodiment of the present disclosure, as the first sink arm (630) and the third sink arm (650) coupled with the first sink arm (630) rotate about the first shaft (730) as the rotation axis, one side of the sliding member (680) coupled with the first shaft (730) can move in a direction parallel to the rotation axis along the first shaft (730). As the second sink arm (640) and the fourth sink arm (660) coupled with the second sink arm (640) rotate about the second shaft (740) as the rotation axis, the other side of the sliding member (680) coupled with the second shaft (740) can move in a direction parallel to the rotation axis along the second shaft (740).

[0216] According to one embodiment of the present disclosure, as the first sink arm (630) and the third sink arm (650) rotate about the first shaft (730), the third spiral portion (1170) of the third sink arm (650) can spirally move along the seventh spiral portion (1260) of the sliding member (680), and the fifth spiral portion (1240) of the sliding member (680) can spirally move along the first spiral portion (1070) of the first sink arm (630). As the third spiral portion (1170) of the third sink arm (650) and the fifth spiral portion (1240) of the sliding member (680) spirally move, one side of the sliding member (680) can translate in a direction parallel to the first shaft (730).

[0217] According to one embodiment of the present disclosure, as the second sink arm (640) and the fourth sink arm (660) rotate about the second shaft (740), the fourth spiral portion of the fourth sink arm (660) can spirally move along the eighth spiral portion (1270) of the sliding member (680), and the sixth spiral portion (1250) of the sliding member (680) can spirally move along the second spiral portion of the second sink arm (640). As the fourth spiral portion of the fourth sink arm (660) and the sixth spiral portion (1250) of the sliding member (680) spirally move, the other side of the sliding member (680) can translate in a direction parallel to the second shaft (740).

[0218] The translational motion of the sliding member (680) will be described in detail in FIG. 20 below. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0219] FIG. 18 is a drawing illustrating a process of combining some components of a hinge module according to one embodiment.

[0220] Referring to FIG. 18, according to one embodiment, for example, a first shaft (730) is coupled to a first sink arm (630) and a second shaft (740) is coupled to a second sink arm (640), and then one side of a sliding member (680) is coupled to the first shaft (730) and the other side of the sliding member (680) is coupled to the second shaft (740), thereby assembling the first module. For example, one side of a first cam structure (1000) is coupled to a third sink arm (650), and the other side of the first cam structure (1000) is coupled to a fourth sink arm (660), thereby assembling the second module. For example, a third module may be assembled by having one side of the first cam structure (1000) of the second module coupled with the first shaft (730) of the first module, and the other side of the first cam structure (1000) of the second module coupled with the second shaft (740) of the first module. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0221] FIG. 19 is a drawing showing a first sink arm and a third sink arm combined according to one embodiment.

[0222] Referring to FIG. 19, according to one embodiment, the first sink arm (630) and the third sink arm (650) may be coupled. In one embodiment, the first protrusion (1020) of the first sink arm (630) and the third recess (1130) of the third sink arm (650) may be coupled. For example, the third recess (1130) may be formed to correspond to the first protrusion (1020). In one embodiment, the third protrusion (1120) of the third sink arm (650) and the first recess (1030) of the first sink arm (630) may be coupled. For example, the first recess (1030) may be formed to correspond to the third protrusion (1120). Although only the combination of the first sink arm (630) and the third sink arm (650) is illustrated in FIG. 19, the combination of the second sink arm (640) and the fourth sink arm (660) can also be applied in the same manner. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0223] FIG. 20 is a drawing illustrating movement of a sliding member according to one embodiment.

[0224] According to one embodiment of the present disclosure, as the second housing (120) of the foldable electronic device (100) rotates, the first sink arm (630) and the third sink arm (650) coupled to the first sink arm (630) can rotate about the first shaft (730) as a rotation axis. As the third housing (130) of the foldable electronic device (100) rotates, the second sink arm (640) and the fourth sink arm (660) coupled to the second sink arm (640) can rotate about the second shaft (740) as a rotation axis.

[0225] According to one embodiment of the present disclosure, when the first sink arm (630) and the third sink arm (650) rotate, one side of the sliding member (680) can translate in a direction parallel to the rotational axes of the first sink arm (630) and the third sink arm (650). When the second sink arm (640) and the fourth sink arm (660) rotate, the other side of the sliding member (680) can translate in a direction parallel to the rotational axes of the second sink arm (640) and the fourth sink arm (660).

[0226] According to one embodiment of the present disclosure, as one side of the sliding member (680) and the other side of the sliding member (680) translate along the first shaft (730) and the second shaft (740) in a direction parallel to the rotational axis, the connecting portion (1210) of the sliding member (680) can move toward the rotational guide bracket (670).

[0227] According to one embodiment of the present disclosure, the movement distance of the sliding member (680) according to the translational movement of the sliding member (680) may be determined by the inclination of the spiral shape of the fifth spiral portion (1240), the sixth spiral portion (1250), the seventh spiral portion (1260), and the eighth spiral portion (1270) of the sliding member (680). For example, if the spiral of the fifth spiral portion (1240) of the sliding member (680) that performs the spiral movement within the first spiral portion (1070) of the first sink arm (630) corresponding to the fifth spiral portion (1240) of the sliding member (680) is formed long, the translational movement distance of the sliding member (680) may increase. For example, if the spiral of the seventh spiral portion (1260) of the sliding member (680) that performs spiral motion within the third spiral portion (1170) of the third sink arm (650) corresponding to the seventh spiral portion (1260) of the sliding member (680) is formed to be long, the translational movement distance of the sliding member (680) may increase. For example, if the spiral of the fifth spiral portion (1240) and / or the seventh spiral portion (1260) of the sliding member (680) that performs spiral motion is formed to be long along the rotational axis of the first sink arm (630) and / or the third sink arm (650), the translational movement distance of the sliding member (680) may increase. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0228] FIG. 21 is a cross-sectional view illustrating a cross-section of a flexible display in a foldable electronic device according to one embodiment of the present invention in a folded state.

[0229] According to one embodiment of the present disclosure, as the second housing (120) and / or the third housing (130) rotates, the first sink arm (630) and / or the second sink arm (640) can rotate. As the first sink arm (630) and the second sink arm (640) rotate, the flexible display (160) can fold. For example, as the state of the foldable electronic device (100) changes from the second state to the third state, the flexible display (160) can include a folding portion (1300), which is a folding area.

[0230] According to one embodiment of the present disclosure, in the third state of the foldable electronic device (100), the folding portion (1300) of the flexible display (160) may be positioned between the hinge housing (520) and an imaginary straight line (3000) connecting the upper end of the fifth spiral portion (1240) and the upper end of the sixth spiral portion (1250) of the sliding member (680). For example, in the third state of the foldable electronic device (100), the folding portion (1300) of the flexible display (160) may be positioned at least partially between the first shaft (730) and the second shaft (740). For example, in the third state of the foldable electronic device (100), the folding portion (1300) of the flexible display (160) may be arranged to be in contact with an imaginary straight line (3010) connecting the center of the first shaft (730) and the center of the second shaft (740). For example, as the state of the foldable electronic device (100) changes from the second state to the third state, the folding portion (1300) of the flexible display (160) may move toward the connecting portion (1210) of the sliding member (680). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0231] FIG. 22 is a drawing illustrating a process of combining rotating arms, a rotating guide bracket, and a hinge housing according to one embodiment.

[0232] According to one embodiment of the present disclosure, the hinge module (510) may include a rotation guide bracket (670) that guides the rotation of the first rotation arm (610) and the second rotation arm (620). The first rotation arm (610) may be disposed on one side of the rotation guide bracket (670). For example, the first rotation arm (610) may be mounted on one side of the rotation guide bracket (670) so that the rotation may be guided. The second rotation arm (620) may be disposed on the other side opposite to the one side of the rotation guide bracket (670). For example, the second rotation arm (620) may be mounted on the other side of the rotation guide bracket (670) so that the rotation may be guided.

[0233] According to one embodiment of the present disclosure, the hinge module (510) may be coupled with the hinge housing (520). For example, the hinge module (510) may be fixed to the hinge housing (520) by coupling the rotation guide bracket (670) to the hinge housing (520). For example, the hinge module (510) may be fixed to the hinge housing (520) through a first fastening member (1310) and a second fastening member (1320). For example, the first fastening member (1310) may be disposed at one edge of the rotation guide bracket (670) adjacent to the second housing (120). For example, the second fastening member (1320) may be disposed at another edge opposite to the one edge of the rotation guide bracket (670) adjacent to the third housing (130). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0234] Fig. 23 is a perspective view of a rotation guide bracket according to one embodiment.

[0235] According to one embodiment of the present disclosure, a first rotation support portion (1410) and a third rotation support portion (1430) may be formed on one side of a rotation guide bracket (670). For example, at least a portion of a first rotation arm (610) may be seated on the first rotation support portion (1410) and the third rotation support portion (1430) on one side of the rotation guide bracket (670) to guide rotation. For example, at least a portion of the first rotation arm (610) may rotate along the first rotation support portion (1410) and the third rotation support portion (1430) of the rotation guide bracket (670). For example, the first rotation support portion (1410) and the third rotation support portion (1430) may be formed in a fan shape. For example, the first rotation arm (610) can rotate about the imaginary center of the fan-shaped first rotation support (1410) and the third rotation support (1430) as the rotation axis.

[0236] According to one embodiment of the present disclosure, a second rotation support (1420) and a fourth rotation support (1440) may be formed on the opposite side of the rotation guide bracket (670). For example, at least a portion of the second rotation arm (620) may be seated on the second rotation support (1420) and the fourth rotation support (1440) on the other side of the rotation guide bracket (670) to guide rotation. For example, at least a portion of the second rotation arm (620) may rotate along the second rotation support (1420) and the fourth rotation support (1440) of the rotation guide bracket (670). For example, the second rotation support (1420) and the fourth rotation support (1440) may be formed in a fan shape. For example, the second rotation arm (620) can rotate about the imaginary center of the fan-shaped second rotation support (1420) and the fourth rotation support (1440) as the rotation axis.

[0237] According to one embodiment of the present disclosure, the rotation guide bracket (670) may include a first opening (1450) formed at an edge of one side of the rotation guide bracket (670). For example, the first fastening member (1310) may be positioned to pass through the first opening (1450) of the rotation guide bracket (670). In one embodiment, the rotation guide bracket (670) may include a second opening (1460) formed at an edge of the other side of the rotation guide bracket (670). For example, the second fastening member (1320) may be positioned to pass through the second opening (1460) of the rotation guide bracket (670). In one embodiment, the rotation guide bracket (670) can be secured to the hinge housing (520) via a first fastening member (1310) positioned to penetrate the first opening (1450) and a second fastening member (1320) positioned to penetrate the second opening (1460).

[0238] According to one embodiment of the present disclosure, the rotation guide bracket (670) may include a first fixing portion (1470) formed at a portion adjacent to the third rotation support portion (1430). For example, one end of the first shaft (730) may be coupled to the first fixing portion (1470) and connected to the rotation guide bracket (670). The rotation guide bracket (670) may include a second fixing portion (1480) formed at a portion adjacent to the fourth rotation support portion (1440). For example, one end of the second shaft (740) may be coupled to the second fixing portion (1480) and connected to the rotation guide bracket (670).

[0239] The coupling of the first fixing part (1470) and the first shaft (730) and the coupling of the second fixing part (1480) and the second shaft (740) will be described in detail later in FIG. 29. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0240] Figure 24 is a perspective view of a first rotary arm according to one embodiment.

[0241] According to one embodiment of the present disclosure, although only the shape of the first rotation arm (610) is illustrated in FIG. 24, the second rotation arm (620) may be formed symmetrically with the first rotation arm (610).

[0242] According to one embodiment of the present disclosure, the first rotation arm (610) may include a first rotation portion (1510) and a third rotation portion (1520) that are mounted on a rotation guide bracket (670) and can rotate. For example, at least a portion of the first rotation portion (1510) may be mounted on a first rotation support portion (1410) of the rotation guide bracket (670). For example, at least a portion of the third rotation portion (1520) may be mounted on a third rotation support portion (1430) of the rotation guide bracket (670). For example, the first rotation arm (610) can rotate when at least a part of the first rotation part (1510) overlaps with the first rotation support part (1410) of the rotation guide bracket (670) and at least a part of the third rotation part (1520) overlaps with the third rotation support part (1430) of the rotation guide bracket (670). For example, the first rotation part (1510) of the first rotation arm (610) can be formed to correspond to the shape of the first rotation support part (1410) of the rotation guide bracket (670). For example, the third rotation part (1520) of the first rotation arm (610) can be formed to correspond to the shape of the third rotation support part (1430) of the rotation guide bracket (670).

[0243] According to one embodiment of the present disclosure, the second rotation arm (620) may include a second rotation portion and a fourth rotation portion that are mounted on the rotation guide bracket (670) and can rotate. For example, at least a portion of the second rotation portion may be mounted on the second rotation support portion (1420) of the rotation guide bracket (670). For example, at least a portion of the fourth rotation portion may be mounted on the fourth rotation support portion (1440) of the rotation guide bracket (670). For example, the second rotation arm (620) may rotate in a state where at least a portion of the second rotation portion overlaps the second rotation support portion (1420) of the rotation guide bracket (670) and at least a portion of the fourth rotation portion overlaps the fourth rotation support portion (1440) of the rotation guide bracket (670). For example, the second rotation part of the second rotation arm (620) may be formed to correspond to the shape of the second rotation support part (1420) of the rotation guide bracket (670). For example, the fourth rotation part of the second rotation arm (620) may be formed to correspond to the shape of the fourth rotation support part (1440) of the rotation guide bracket (670).

[0244] According to one embodiment of the present disclosure, the first rotation arm (610) may extend from a portion where the first rotation portion (1510) and the third rotation portion (1520) are formed, and may include at least one third opening (1530) formed in a portion adjacent to the second housing (120). For example, the first rotation arm (610) may be connected to the second housing (120) through the at least one third opening (1530). For example, the first rotation arm (610) may be coupled to the second housing (120) through at least one fastening member arranged to penetrate the at least one third opening (1530). The first rotation arm (610) coupled to the second housing (120) may rotate as the second housing (120) rotates.

[0245] According to one embodiment of the present disclosure, the second rotation arm (620) may extend from a portion where the second rotation portion and the fourth rotation portion are formed, and may include at least one fourth opening formed in a portion adjacent to the third housing (130). For example, the second rotation arm (620) may be connected to the third housing (130) through the at least one fourth opening. For example, the second rotation arm (620) may be coupled to the third housing (130) through at least one fastening member arranged to penetrate the at least one fourth opening. The second rotation arm (620) coupled to the third housing (130) may rotate as the third housing (130) rotates.

[0246] According to one embodiment of the present disclosure, the first rotation arm (610) may include a first mounting portion (1540) formed at a position adjacent to the first rotation portion (1510) and a second mounting portion (1550) formed at a position adjacent to the third rotation portion (1520). For example, while the first rotation arm (610) is rotated, the foldable electronic device (100) may not be rotated excessively compared to the third state due to the first mounting portion (1540) and the second mounting portion (1550). For example, in the third state of the foldable electronic device (100), the first mounting portion (1540) and the second mounting portion (1550) may come into contact with a portion of the hinge housing (520). For example, the first mounting portion (1540) and the second mounting portion (1550) may be formed as surfaces that can come into contact with a portion of the hinge housing (520).

[0247] According to one embodiment of the present disclosure, the second rotation arm (620) may include a third seating portion formed at a position adjacent to the second rotation portion and a fourth seating portion formed at a position adjacent to the fourth rotation portion. For example, while the second rotation arm (620) is rotated, the foldable electronic device (100) may not be rotated excessively compared to the third state due to the third seating portion and the fourth seating portion. For example, in the third state of the foldable electronic device (100), the third seating portion and the fourth seating portion may come into contact with another portion opposite to a portion of the hinge housing (520). For example, the third seating portion and the fourth seating portion may be formed as a surface that may come into contact with another portion of the hinge housing (520).

[0248] The structure of the hinge housing (520) in contact with the first mounting portion (1540) and the second mounting portion (1550) will be described in detail in FIG. 25 below.

[0249] According to one embodiment of the present disclosure, the first rotary arm (610) may include a first sliding hole (1560) into which a first linkage pin (710) may be inserted. For example, as the first linkage pin (710) inserted into the first sliding hole (1560) is connected to the first sink arm (630) and the third sink arm (650), the first rotary arm may rotate together with the first sink arm (630) and the third sink arm (650). For example, the first linkage pin (710) inserted into the first sliding hole (1560) is arranged to penetrate the first insertion hole (1040) of the first sink arm (630), the second insertion hole (1050) of the first sink arm (630), and the fifth insertion hole (1140) of the third sink arm (650), thereby connecting the first rotation arm (610), the first sink arm (630), and the third sink arm (650).

[0250] According to one embodiment of the present disclosure, the second rotary arm (620) may include a second sliding hole into which a second linkage pin (720) may be inserted. For example, as the second linkage pin (720) inserted into the second sliding hole is connected to the second sink arm (640) and the fourth sink arm (660), the second rotary arm may rotate together with the second sink arm (640) and the fourth sink arm (660). For example, the second linkage pin (720) inserted into the second sliding hole may be arranged to penetrate the third insertion hole of the second sink arm (640), the fourth insertion hole of the second sink arm (640), and the sixth insertion hole of the fourth sink arm (660), thereby connecting the second rotary arm (620), the second sink arm (640), and the fourth sink arm (660).

[0251] The interlocking structure of the first rotation arm (610), the first sink arm (630), and the third sink arm (650) by the first interlocking pin (710) will be described in detail in FIGS. 30 to 32 to be described later. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0252] FIG. 25 is a perspective view of a hinge housing according to one embodiment.

[0253] According to one embodiment of the present disclosure, the hinge housing (520) may include a first rotation guide portion (1610) formed on one side. The first rotation guide portion (1610) of the hinge housing (520) may guide the rotation of the first rotation arm (610). For example, a portion between the first rotation portion (1510) and the third rotation portion (1520) of the first rotation arm (610) may rotate along the first rotation guide portion (1610) of the hinge housing (520).

[0254] According to one embodiment of the present disclosure, the hinge housing (520) may include a second rotation guide portion (1620) formed on the opposite side from one side. The second rotation guide portion (1620) of the hinge housing (520) may guide the rotation of the second rotation arm (620). For example, a portion between the second rotation portion and the fourth rotation portion of the second rotation arm (620) may rotate along the second rotation guide portion (1620) of the hinge housing (520).

[0255] According to one embodiment of the present disclosure, the hinge housing (520) may include a first stopper (1630) formed on one side of the first rotation guide portion (1610) and a third stopper (1650) formed on the other side opposite to the one side of the first rotation guide portion (1610). For example, the first stopper (1630) and the third stopper (1650) may include a protruding portion. For example, the protruding portion of the first stopper (1630) may include a surface that may come into contact with the first mounting portion (1540) of the first rotation arm (610). For example, the protruding portion of the third stopper (1650) may include a surface that may come into contact with the third mounting portion (1550) of the first rotation arm (610). According to one embodiment, in the third state of the foldable electronic device (100), the first mounting portion (1540) and the third mounting portion (1550) of the first rotation arm (610) are brought into contact with the first stopper (1630) and the third stopper (1650) of the hinge housing (520), respectively, thereby preventing excessive rotation of the first rotation arm (610).

[0256] According to one embodiment of the present disclosure, the hinge housing (520) may include a second stopper (1640) formed on one side of the second rotation guide portion (1620) and a fourth stopper (1660) formed on the other side opposite to the one side of the second rotation guide portion (1620). For example, the second stopper (1640) and the fourth stopper (1660) may include a protruding portion. For example, the protruding portion of the second stopper (1640) may include a surface that can come into contact with the second mounting portion of the second rotation arm (620). For example, the protruding portion of the fourth stopper (1660) may include a surface that can come into contact with the fourth mounting portion of the second rotation arm (620). According to one embodiment, in the third state of the foldable electronic device (100), the second mounting portion and the fourth mounting portion of the second rotation arm (620) are in contact with the second stopper (1640) and the fourth stopper (1660) of the hinge housing (520), respectively, thereby preventing excessive rotation of the second rotation arm (620).

[0257] According to one embodiment of the present disclosure, the hinge housing (520) may include a first fastening portion (1670) formed at an edge of one side of the hinge housing (520). For example, the edge of one side of the hinge housing (520) may be formed at a position adjacent to the second housing (120). According to one embodiment, a first fastening member (1310) positioned to penetrate the first opening (1450) of the rotation guide bracket (670) may be inserted into the first fastening portion (1670) of the hinge housing (520). For example, by inserting the first fastening member (1310) into the first fastening portion (1670) of the hinge housing (520), one side of the hinge module (510) may be fixed to the hinge housing (520).

[0258] According to one embodiment of the present disclosure, the hinge housing (520) may include a second fastening portion (1680) formed on an edge of the other side opposite to one side of the hinge housing (520). For example, the edge of the other side of the hinge housing (520) may be formed at a position adjacent to the third housing (130). According to one embodiment, the second fastening member (1320) positioned to penetrate the second opening (1460) of the rotation guide bracket (670) may be inserted into the second fastening portion (1680) of the hinge housing (520). For example, by inserting the second fastening member (1320) into the second fastening portion (1680) of the hinge housing (520), the other side of the hinge module (510) may be fixed to the hinge housing (520). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0259] FIG. 26 is a cross-sectional view of a hinge module that supports a flexible display in an unfolded state of a foldable electronic device according to one embodiment. FIG. 27 is a cross-sectional view of a hinge module that supports a flexible display in a folded state of a foldable electronic device according to one embodiment. FIG. 28 is a cross-sectional view of a hinge module that supports a flexible display in a folded state of a foldable electronic device according to one embodiment.

[0260] According to one embodiment of the present disclosure, the first rotation part (1510) of the first rotation arm (610) is guided by the first rotation support part (1410) of the rotation guide bracket (670) and can rotate about the first rotation axis (1710). The second rotation part (1515) of the second rotation arm (620) is guided by the second rotation support part (1420) of the rotation guide bracket (670) and can rotate about the second rotation axis (1720). The first rotation axis (1710) of the first rotation arm (610) and the second rotation axis (1720) of the second rotation arm (620) may be formed parallel to each other.

[0261] According to one embodiment of the present disclosure, the first rotation axis (1710) of the first rotation arm (610) and the second rotation axis (1720) of the second rotation arm (620) may be formed at a location inside the flexible display (160) or adjacent to the flexible display (160). For example, since the first rotation axis (1710) and the second rotation axis (1720) are formed at a location inside the flexible display (160) or adjacent to the flexible display (160), the flexible display (160) may be easily folded.

[0262] According to one embodiment of the present disclosure, referring to FIGS. 26 to 28, while the foldable electronic device (100) is folded, the flexible display (160) may be at least partially supported by the first rotation arm (610) and the second rotation arm (620). For example, as the foldable electronic device (100) is folded, the folding portion (1300) of the flexible display may be folded. For example, areas of the flexible display (160) other than the folding portion (160) may be at least partially supported by the first rotation arm (610) and the second rotation arm (620).

[0263] According to one embodiment of the present disclosure, while the foldable electronic device (100) is folded, the folding portion (1300) of the flexible display (160) can move in a direction toward the rotation guide bracket (670). For example, referring to FIGS. 27 and 28, when the foldable electronic device (100) is folded, the folding portion (1300) of the flexible display (160) can be at least partially positioned between a virtual straight line connecting the first rotation axis (1710) and the second rotation axis (1720) and the rotation guide bracket (670).

[0264] According to one embodiment of the present disclosure, referring to FIG. 27, when the foldable electronic device (100) is folded, the folding portion (1300) of the flexible display (160) may be positioned a predetermined distance apart from the first rotation portion (1510) of the first rotation arm (610) and the second rotation portion (1515) of the second rotation arm (620). For example, referring to FIG. 28, when the foldable electronic device (100) is folded, the folding portion (1300) of the flexible display (160) may be positioned a predetermined distance apart from the rotation guide bracket (670). When the foldable electronic device (100) changes state from an unfolded state to a folded state, the folding part (1300) of the flexible display (160) is positioned at a predetermined distance from the rotation guide bracket (670), so that the folding part (1300) of the flexible display (160) may not be deformed by the force applied by the rotation guide bracket (670). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0265] FIG. 29 is a drawing illustrating a combination of a rotating arm and a sink arm having different axes of rotation according to one embodiment.

[0266] According to one embodiment of the present disclosure, the first rotation arm (610) is mounted on one side of the rotation guide bracket (670) and can rotate about the first rotation axis (1710). The second rotation arm (620) is mounted on the other side of the rotation guide bracket (670) opposite to the one side and can rotate about the second rotation axis (1720) that is parallel to the first rotation axis (1710).

[0267] According to one embodiment of the present disclosure, the first sink arm (630) can rotate about the first shaft (730) as a third rotation axis (1810). The second sink arm (640) can rotate about the second shaft (740) as a fourth rotation axis (1820). For example, the third rotation axis (1810) and the fourth rotation axis (1820) can be formed parallel to each other. For example, the third rotation axis (1810) can be formed at a different position from the first rotation axis (1710). For example, the fourth rotation axis (1820) can be formed at a different position from the second rotation axis (1720). For example, the first rotation axis (1710) and the third rotation axis (1810) can be formed parallel to each other. For example, the second rotation axis (1720) and the fourth rotation axis (1820) can be formed parallel to each other.

[0268] According to one embodiment of the present disclosure, since the first rotation axis (1710) of the first rotation arm (610) and the third rotation axis (1810) of the first sink arm (630) are formed at different positions, the hinge module (510) may include a configuration that allows the first rotation arm (610) and the first sink arm (630) to rotate together. For example, the hinge module (510) may include a first linkage pin (710) that connects the first rotation arm (610) and the first sink arm (630). In one embodiment, since the first rotation arm (610) and the first sink arm (630) are connected through the first linkage pin (710), the first rotation arm (610) and the first sink arm (630) may rotate together. For example, as the second housing rotates, the first rotation arm (610) rotates, and the first sink arm (630) connected to the first rotation arm (610) through the first linkage pin (710) can rotate according to the rotation arm.

[0269] According to one embodiment of the present disclosure, since the second rotation axis (1720) of the second rotation arm (620) and the fourth rotation axis (1820) of the second sink arm (640) are formed at different positions, the hinge module (510) may include a configuration that allows the second rotation arm (620) and the second sink arm (640) to rotate together. For example, the hinge module (510) may include a second linkage pin (720) that connects the second rotation arm (620) and the second sink arm (640). In one embodiment, since the second rotation arm (620) and the second sink arm (640) are connected through the second linkage pin (720), the second rotation arm (620) and the second sink arm (640) may rotate together. For example, as the third housing rotates, the second rotation arm (620) rotates, and the second sink arm (640) connected to the second rotation arm (620) through the second linkage pin (720) can rotate along the second rotation arm.

[0270] According to one embodiment of the present disclosure, while the first sink arm (630) is rotated, the first shaft (730) corresponding to the third rotation axis (1810) of the first sink arm (630) may be fixed to the rotation guide bracket (670) so that the first shaft (730) does not come off from the hinge module (510). For example, one end of the first shaft (730) may be inserted into the first fixing part (1470) provided on one side of the rotation guide bracket (670). By inserting one end of the first shaft (730) into the first fixing part (1470) of the rotation guide bracket (670), the first sink arm (630) may be stably rotated together with the first rotation arm (610).

[0271] According to one embodiment of the present disclosure, while the second sink arm (640) is rotated, the second shaft (740) corresponding to the fourth rotation axis (1820) of the second sink arm (640) may be fixed to the rotation guide bracket (670) so that the second shaft (740) does not come off from the hinge module (510). For example, one end of the second shaft (740) may be inserted into the second fixing part (1480) provided on the other side of the rotation guide bracket (670). By inserting one end of the second shaft (740) into the second fixing part (1480) of the rotation guide bracket (670), the second sink arm (640) can be stably rotated together with the second rotation arm (620). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0272] The rotation process of the first rotation arm (610) and the first sink arm (630) by the first linkage pin (710) will be described in detail in FIGS. 30 to 32 below.

[0273] FIG. 30 is a cross-sectional view of a foldable electronic device in an unfolded state according to one embodiment. FIG. 31 is a cross-sectional view of a foldable electronic device in a folded state according to one embodiment. FIG. 32 is a cross-sectional view of a foldable electronic device in a folded state according to one embodiment.

[0274] Referring to FIGS. 30 to 32, according to one embodiment, the first rotation axis (1710) of the first rotation arm (610) may be different from the third rotation axis (1810) of the first sink arm (630) and the third sink arm (650). The second rotation axis (1720) of the second rotation arm (620) may be different from the fourth rotation axis (1820) of the second sink arm (640) and the fourth sink arm (660).

[0275] According to one embodiment of the present disclosure, since the first rotation axis (1710) and the third rotation axis (1810) are formed at different positions, a rotation radius from the first rotation axis (1710) to the first linkage pin (710) and a rotation radius from the third rotation axis (1810) to the first linkage pin (710) may be different. For example, the rotation radius from the first rotation axis (1710) to the first linkage pin (710) may be greater than the rotation radius from the third rotation axis (1810) to the first linkage pin (710). For example, the rotation radius of the first rotation arm (610) may be greater than the rotation radii of the first sink arm (630) and the third sink arm (650).

[0276] According to one embodiment of the present disclosure, since the second rotation axis (1720) and the fourth rotation axis (1820) are formed at different positions, a rotation radius from the second rotation axis (1720) to the second linkage pin (720) and a rotation radius from the fourth rotation axis (1820) to the second linkage pin (720) may be different. For example, the rotation radius from the second rotation axis (1720) to the second linkage pin (720) may be greater than the rotation radius from the fourth rotation axis (1820) to the second linkage pin (720). For example, the rotation radius of the second rotation arm (620) may be greater than the rotation radii of the second sink arm (640) and the fourth sink arm (660).

[0277] According to one embodiment of the present disclosure, a first rotation arm (610) and a first sink arm (630) having different rotation radii may be coupled by a first linkage pin (710). For example, the first rotation arm (610) and the first sink arm (630) may be slidably coupled by the first linkage pin (710). For example, while the first rotation arm (610) and the first sink arm (630) are coupled and rotate, the first linkage pin (710) slides within the first sliding hole (1560), thereby maintaining the coupling between the first rotation arm (610) and the first sink arm (630) and allowing the first rotation arm (610) and the first sink arm (630) to rotate together.

[0278] According to one embodiment of the present disclosure, the second rotation arm (620) and the second sink arm (640) having different rotation radii can be coupled by the second linkage pin (720). For example, the second rotation arm (620) and the second sink arm (640) can be slidably coupled by the second linkage pin (720). For example, while the second rotation arm (620) and the second sink arm (640) are coupled and rotate, the second linkage pin (720) slides within the second sliding hole (1565), thereby maintaining the coupling between the second rotation arm (620) and the second sink arm (640) and allowing the second rotation arm (620) and the second sink arm (640) to rotate together.

[0279] In one embodiment, as the first rotary arm (610) rotates, the first linkage pin (710) can move within the first sliding hole (1560) of the first rotary arm (610). For example, as the first rotary arm (610) rotates, the first linkage pin (710) can slide along the first sliding hole (1560). In one embodiment, as the second rotary arm (620) rotates, the second linkage pin (720) can move within the second sliding hole (1565) of the second rotary arm (620). For example, as the second rotary arm (620) rotates, the second linkage pin (720) can slide along the second sliding hole (1565).

[0280] Referring to FIGS. 30 to 32, the first rotation axis (1710) of the first rotation arm (610) and the third rotation axis (1810) of the first sink arm (630) are formed at different positions, so that the rotation radius or rotation angle of the first rotation arm (610) and the rotation radius or rotation angle of the first sink arm (630) may be different from each other. The first linkage pin (710) may slide within the first sliding hole (1560) so that the first sink arm (630) may rotate in conjunction with the first rotation arm (610). The shape of the first sliding hole (1560) may be formed based on the rotation radius or rotation angle of the first sink arm (630). For example, as the rotation angle of the first sink arm (630) increases, the size of the first sliding hole (1560) may increase. For example, when the rotation angle of the first sink arm (630) increases, the size of the first sliding hole (1560) increases, and when the size of the first sliding hole (1560) increases, the overall size of the hinge module (510) may increase. When the size of the hinge module (510) increases, it may be difficult to manufacture the foldable electronic device (100) to be thin. For example, when the first rotation arm (610) can rotate from 0 degrees to 90 degrees with respect to the hinge housing (520), the first sliding hole (1560) may be formed so that the first sink arm (630) can rotate from 0 degrees to about 80 degrees with respect to the hinge housing (520).

[0281] According to one embodiment of the present disclosure, referring to FIG. 30, when the foldable electronic device (100) is unfolded, the first linkage pin (710) connected to the first rotation arm (610) and the first sync arm (630) may be located at one side of the first sliding hole (1560). In one embodiment, referring to FIG. 31, when the foldable electronic device (100) is folded, as the first linkage pin (710) slides inside the first sliding hole (1560), the first linkage pin (710) may be located between one side and the other side of the first sliding hole (1560). In one embodiment, referring to FIG. 32, when the foldable electronic device (100) is unfolded, the first linkage pin (710) may be located at the other side of the first sliding hole (1560). For example, referring to FIG. 32, when the foldable electronic device (100) is unfolded, the angle of the first sink arm (630) with respect to the hinge housing (520) may be approximately 76 degrees. For example, when the foldable electronic device (100) is unfolded, the angle of the first sink arm (630) with respect to the hinge housing (520) may be formed to be smaller than the angle of the first rotation arm (610) with respect to the hinge housing (520), thereby forming the first sliding hole (1560) smaller. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0282] FIG. 33 is a perspective view of a sliding member including a rib according to one embodiment.

[0283] According to one embodiment of the present disclosure, the connecting portion (1210) of the sliding member (680) may include a rib (1900) protruding from the connecting portion (1210). For example, the rib (1900) may include a first portion extending from the connecting portion (1210) and a second portion formed with a width greater than the width of the first portion. For example, the width of the first portion and the width of the second portion of the rib (1900) may correspond to the length in a direction perpendicular to the moving direction of the sliding member (680). For example, the second portion may be a portion protruding in a direction perpendicular to the moving direction of the sliding member (680). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0284] FIG. 34 is a perspective view of a rotation guide bracket including a rib guide portion according to one embodiment.

[0285] According to one embodiment of the present disclosure, the rotation guide bracket (670) may include a center portion (2000) formed to extend in a direction parallel to the first rotation axis (1710) of the first rotation arm (610) and the second rotation axis (1720) of the second rotation arm (620). For example, a third rotation support portion (1430) may be formed on one side of the center portion (2000). For example, a fourth rotation support portion (1440) may be formed on the other side opposite to one side of the center portion (2000).

[0286] According to one embodiment of the present disclosure, the rotation guide bracket (670) may include a rib guide portion (2010) formed adjacent to the third rotation support portion (1430) and the fourth rotation support portion (1440) among the portions perpendicular to one side of the center portion (2000) and the other side of the center portion (2000). For example, the rib guide portion (2010) may include a space in which a second portion of the rib (1900) of the sliding member (680) can move. For example, the rib guide portion (2010) may include a portion that can guide a first portion of the rib (1900) of the sliding member (680) so that the second portion of the rib (1900) of the sliding member (680) can translate in the rib guide portion (2010). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0287] FIG. 35 is a drawing illustrating movement of a rib of a sliding member within a rib guide portion of a rotary guide bracket according to one embodiment.

[0288] According to one embodiment of the present disclosure, when the foldable electronic device (100) is unfolded, one side of the second portion of the rib (1900) of the sliding member (680) may be arranged to come into contact with one side of the rib guide portion (2010) of the rotation guide bracket (670). In one embodiment, as the second housing (120) and / or the third housing (130) rotate, the first sink arm (630), the second sink arm (640), the third sink arm (650), and / or the fourth sink arm (660) may rotate. As the first sink arm (630), the second sink arm (640), the third sink arm (650), and / or the fourth sink arm (660) rotates, the sliding member (680) can move in a direction parallel to the rotational axis of the first sink arm (630), the second sink arm (640), the third sink arm (650), and / or the fourth sink arm (660).

[0289] According to one embodiment of the present disclosure, when the foldable electronic device (100) is in a folded state, the other side of the second part of the rib (1900) of the sliding member (680), which is opposite to one side, may be arranged to come into contact with the other side of the rib guide part (2010) of the rotation guide bracket (670). By bringing the other side of the second part of the rib (1900) into contact with the other side of the rib guide part (2010), excessive rotation of the foldable electronic device (100) can be prevented.

[0290] According to one embodiment of the present disclosure, the width of the space of the rib guide portion (2010) that accommodates the rib (1900) of the sliding member (680) of the rotation guide bracket (670) may be formed to correspond to the movement distance of the sliding member (680). For example, the width of the space of the rib guide portion (2010) may correspond to the length in the direction in which the sliding member (680) moves. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0291] FIG. 36 is a perspective view of a hinge module incorporating a sink arm and a cam structure according to one embodiment.

[0292] According to one embodiment of the present disclosure, the third sink arm (650) may include a third through hole (1150) to which the first shaft (730) is coupled. The third sink arm (650) may include a first cam portion (1180) formed in a portion surrounding the third through hole (1150). For example, the first cam portion (1180) may be formed on a surface of the portion surrounding the third through hole (1150) that faces in a direction parallel to the third rotation axis (1810) of the third sink arm (650).

[0293] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a fourth through hole to which the second shaft (740) is coupled. The fourth sink arm (660) may include a second cam portion (1185) formed in a portion surrounding the fourth through hole. For example, the second cam portion (1185) may be formed on a surface of the portion surrounding the fourth through hole that faces in a direction parallel to the fourth rotation axis (1820) of the fourth sink arm (660).

[0294] According to one embodiment of the present disclosure, the hinge module (510) may include a first cam member (810) including a first portion formed to face a first cam portion (1180) of a third sink arm (650), a second portion arranged to face a second cam portion (1185) of a fourth sink arm (660), and a connecting portion connecting the first portion and the second portion. For example, the first portion of the first cam member (810) may include a cam portion corresponding to the first cam portion (1180) of the third sink arm (650). For example, the second portion of the first cam member (810) may be formed to face a second cam portion (1185) of the fourth sink arm (660). For example, the body portion connecting the first portion and the second portion of the first cam member (810) may be formed to be convex in a direction toward the hinge housing (520). For example, the body portion of the first cam member (810) can be arranged perpendicular to the third rotation axis (1810) and the fourth rotation axis (1820).

[0295] The shape of the cam portion of the first cam member (810) and the shape of the first cam portion (1180) will be described in detail in FIG. 37, which will be described later.

[0296] According to one embodiment of the present disclosure, the hinge module (510) may include a first elastic member (820) arranged to be in contact with the first cam member (810). For example, as the first cam portion (1180) of the third sink arm (650) comes into contact with the cam portion of the first portion of the first cam member (810), the first elastic member (820) may be compressed in a direction parallel to the third rotation axis (1810) and the fourth rotation axis (1820).

[0297] According to one embodiment of the present disclosure, the hinge module (510) may include a second elastic member (830) arranged to be in contact with the first cam member (810). For example, as the second cam portion (1185) of the fourth sink arm (660) comes into contact with the cam portion of the second portion of the first cam member (810), the second elastic member (830) may be compressed in a direction parallel to the third rotation axis (1810) and the fourth rotation axis (1820).

[0298] The process in which the first elastic member (820) and the second elastic member (830) are compressed by the first cam member (810) will be described in detail in FIGS. 38 to 40.

[0299] According to one embodiment of the present disclosure, the hinge module (510) may include a first shaft bracket (840) including a first portion supporting a first elastic member (820), a second portion supporting a second elastic member (830), and a connecting portion connecting the first portion and the second portion. For example, the first portion of the first shaft bracket (840) may include a flat surface for supporting the first elastic member (820). For example, the second portion of the first shaft bracket (840) may include a flat surface for supporting the second elastic member (830). For example, the connecting portion of the first shaft bracket (840) may be formed to be convex toward the hinge housing (520).

[0300] According to one embodiment of the present disclosure, a surface opposite to a surface supporting a first elastic member (820) among the first portions of the first shaft bracket (840) may be supported by a portion including a fifth through hole (1160) of the third sink arm (650). In one embodiment, a surface opposite to a surface supporting a second elastic member (830) among the second portions of the first shaft bracket (840) may be supported by a portion including a sixth through hole of the fourth sink arm (660).

[0301] According to one embodiment of the present disclosure, the third sink arm (650) may include a fifth through hole (1160) to which the first shaft (730) is coupled. The third sink arm (650) may include a third cam portion (1190) formed in a portion surrounding the fifth through hole (1160). For example, the third cam portion (1190) may be formed on a surface of the portion surrounding the fifth through hole (1160) that faces in a direction parallel to the third rotation axis (1810) of the third sink arm (650).

[0302] According to one embodiment of the present disclosure, the fourth sink arm (660) may include a sixth through hole to which the second shaft (740) is coupled. The fourth sink arm (660) may include a fourth cam portion (1195) formed in a portion surrounding the sixth through hole. For example, the fourth cam portion (1195) may be formed on a surface of the portion surrounding the sixth through hole that faces in a direction parallel to the fourth rotation axis (1820) of the fourth sink arm (660).

[0303] According to one embodiment of the present disclosure, the hinge module (510) may include a second cam member (850) including a first portion formed to face the third cam portion (1190) of the third sink arm (650), a second portion arranged to face the fourth cam portion (1195) of the fourth sink arm (660), and a body portion connecting the first portion and the second portion. For example, the first portion of the second cam member (850) may include a cam portion corresponding to the third cam portion (1190) of the third sink arm (650). For example, the second portion of the second cam member (850) may be formed to correspond to the fourth cam portion (1195) of the fourth sink arm (660). For example, the body portion connecting the first portion and the second portion of the second cam member (850) may be formed to be convex in a direction toward the hinge housing (520). For example, the body portion of the second cam member (850) may be arranged perpendicular to the third rotation axis (1810) and the fourth rotation axis (1820).

[0304] The shape of the cam portion of the second cam member (850) and the shape of the third cam portion (1190) will be described in detail in FIG. 37, which will be described later.

[0305] According to one embodiment of the present disclosure, the hinge module (510) may include a third elastic member (860) arranged to be in contact with the second cam member (850). For example, as the third cam portion (1190) of the third sink arm (650) comes into contact with the cam portion of the first portion of the second cam member (850), the third elastic member (860) may be compressed in a direction parallel to the third rotation axis (1810) and the fourth rotation axis (1820).

[0306] According to one embodiment of the present disclosure, the hinge module (510) may include a fourth elastic member (870) arranged to be in contact with the second cam member (850). For example, as the second cam portion (1185) of the fourth sink arm (660) comes into contact with the cam portion of the second portion of the second cam member (850), the fourth elastic member (870) may be compressed in a direction parallel to the third rotation axis (1810) and the fourth rotation axis (1820).

[0307] The process in which the third elastic member (860) and the fourth elastic member (870) are compressed by the second cam member (850) will be described in detail in FIGS. 38 to 40.

[0308] According to one embodiment of the present disclosure, the hinge module (510) may include a second shaft bracket (880) including a first portion supporting a third elastic member (860), a second portion supporting a fourth elastic member (870), and a connecting portion connecting the first portion and the second portion. For example, the first portion of the second shaft bracket (880) may include a flat surface for supporting the third elastic member (860). For example, the second portion of the second shaft bracket (880) may include a flat surface for supporting the fourth elastic member (870). For example, the connecting portion of the second shaft bracket (880) may be formed to be convex toward the hinge housing (520). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0309] FIG. 37 is a drawing illustrating a first cam portion of a third sink arm and a third cam portion of a first cam member according to one embodiment.

[0310] Although only the shapes of the first cam portion (1180) of the third sink arm (650) and the fifth cam portion (2100) of the first part of the first cam member (810) are shown in FIG. 37, the third cam portion (1190) of the third sink arm (650), the second cam portion of the second sink arm (640), the fourth cam portion of the second sink arm (640), the sixth cam portion of the first cam member (810), the seventh cam portion of the first part of the second cam member (850), and the eighth cam portion of the second part of the second cam member (850) can also be implemented with the same shape.

[0311] According to one embodiment of the present disclosure, a first cam portion (1180) may be formed on a surface of a portion surrounding the fifth through hole (1160) of the third sink arm (650) that faces in a direction parallel to the third rotation axis (1810) of the third sink arm (650). For example, the first cam portion (1180) of the third sink arm (650) may include a first convex portion (2110) and a first concave portion (2120). For example, referring to FIG. 37, when there are a plurality of first convex portions (2110) and a plurality of first concave portions (2120), one first concave portion (2120) may be arranged between two first convex portions (2110).

[0312] According to one embodiment of the present disclosure, a first portion of a first cam member (810) formed to face a first cam portion (1180) of a third sink arm (650) may include a ninth through hole (2150). For example, the first cam member (810) may be connected to the first shaft (730) through a first shaft (730) arranged to pass through the ninth through hole (2150).

[0313] According to one embodiment of the present disclosure, a fifth cam portion (2100) may be formed on a surface facing the surface where the first cam portion (1180) of the third sink arm (650) is formed, among the portions surrounding the ninth through hole (2150) of the first cam member (810). For example, the fifth cam portion (2100) of the first cam member (810) may include a second convex portion (2130) and a second concave portion (2140). For example, referring to FIG. 37, when there are a plurality of second convex portions (2130) and a plurality of second concave portions (2140), one second concave portion (2140) may be arranged between two second convex portions (2130).

[0314] According to one embodiment of the present disclosure, the fifth cam portion (2100) of the first cam member (810) may be formed to correspond to the first cam portion (1180) of the third sink arm (650). For example, the second convex portion (2130) of the fifth cam portion (2100) of the first cam member (810) may be formed to have a shape corresponding to the first concave portion (2120) of the first cam portion (1180) of the third sink arm (650). For example, the first convex portion (2110) of the first cam portion (1180) of the third sink arm (650) may be formed to have a shape corresponding to the second concave portion (2140) of the fifth cam portion (2100) of the first cam member (810). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0315] FIG. 38 is a layout of the first cam portion of the third sink arm and the third cam portion of the first cam member in an unfolded state of the foldable electronic device according to one embodiment.

[0316] Referring to FIG. 38, according to one embodiment, when the foldable electronic device (100) is unfolded, the first convex portion (2110) of the first cam portion (1180) of the third sink arm (650) may be positioned in the second concave portion (2140) of the fifth cam portion (2100) of the first cam member (810). In the state where the first convex portion (2110) of the first cam portion (1180) is positioned in the second concave portion (2140) of the fifth cam portion (2100), the first elastic member (820) in contact with the first portion of the first cam member (810) may have a first length.

[0317] FIG. 39 is a layout of the first cam portion of the third sink arm and the third cam portion of the first cam member while the foldable electronic device according to one embodiment is folded.

[0318] Referring to FIG. 39, according to one embodiment, while the foldable electronic device (100) is folded, the first convex portion (2110) of the first cam portion (1180) of the third sink arm (650) may come into contact with the second convex portion (2130) of the fifth cam portion (2100) of the first cam member (810). For example, as the first convex portion (2110) of the first cam portion (1180) comes into contact with the second convex portion (2130) of the fifth cam portion (2100), the first sink arm (630) may move the first cam member (810) in a direction parallel to the third rotational axis (1810). As the first cam member (810) is moved by the third sink arm (650), the first cam member (810) may compress the first elastic member (820). For example, the compressed first elastic member (820) may have a second length that is shorter than the first length. The compressed first elastic member (820) may apply a restoring force to the first cam member (810). For example, the first cam member (810) receiving the restoring force may push the third sink arm (650) in a direction parallel to the third rotation axis (1810). Due to the force applied to the third sink arm (650) by the first cam member (810), the third sink arm (650) may maintain a predetermined angle in the foldable electronic device (100). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0319] FIG. 40 is a layout of the first cam portion of the third sink arm and the third cam portion of the first cam member in a folded state of a foldable electronic device according to one embodiment.

[0320] Referring to FIG. 40, according to one embodiment, when the foldable electronic device (100) is in a folded state, the first convex portion (2110) of the first cam portion (1180) of the third sink arm (650) may be positioned between the second convex portion (2130) and the second concave portion (2140) of the fifth cam portion (2100) of the first cam member (810). In a state where the first convex portion (2110) of the first cam portion (1180) is positioned between the second convex portion (2130) and the second concave portion (2140) of the fifth cam portion (2100), the first elastic member (820) in contact with the first portion of the first cam member (810) may have a third length that is shorter than the first length and longer than the second length. Since the first elastic member (820) has the third length, the magnitude of the restoring force that the first elastic member (820) applies to the first cam member (810) when the foldable electronic device (100) is folded may be smaller than the magnitude of the restoring force that the first elastic member (820) applies to the first cam member (810) when the foldable electronic device (100) is folded. As the restoring force that the first cam member (810) receives from the first elastic member is smaller, the first cam member (810) may apply a smaller force to the third sink arm (650) when the foldable electronic device (100) is folded than the magnitude of the force that the first cam member (810) applies to the third sink arm (650) when the foldable electronic device (100) is folded. In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0321] Figure 41 is a perspective view of a shaft bracket according to one embodiment.

[0322] Although only the shape of the first shaft bracket (840) is shown in FIG. 41, the shape of the second shaft bracket (880) can also be formed in the same manner as the shape of the first shaft bracket (840).

[0323] Referring to FIG. 41, according to one embodiment, the first shaft bracket (840) may include a first portion (2210), a second portion (2220), and a connecting portion (2230) connecting the first portion (2210) and the second portion (2220). For example, the first portion (2210) may be formed on one side of the connecting portion (2230). For example, the second portion (2220) may be formed on the opposite side of the connecting portion (2230).

[0324] According to one embodiment of the present disclosure, the first portion (2210) may include a tenth through hole (2240). For example, the first shaft (730) may be positioned to penetrate the tenth through hole (2240) of the first shaft bracket (840). For example, by positioning the first shaft (730) to penetrate the tenth through hole (2240) of the first shaft bracket (840), the first portion (2210) of the first shaft bracket (840) may be connected to the first shaft (730).

[0325] According to one embodiment of the present disclosure, the first portion (2210) may include a surface surrounding the tenth through hole (2240). For example, the surface surrounding the tenth through hole (2240) of the first portion (2210) may be a surface oriented in a direction parallel to the third rotation axis (1810) and / or the fourth rotation axis (1820). According to one embodiment, at least a portion of the first portion (2210) of the first shaft bracket (840) may be in contact with the first elastic member (820). For example, the surface surrounding the tenth through hole (2240) of the first portion (2210) may be in contact with the first elastic member (820) to support the first elastic member (820).

[0326] According to one embodiment of the present disclosure, the second portion (2220) may include an eleventh through hole (2250). For example, the second shaft (740) may be positioned to penetrate the eleventh through hole (2250) of the first shaft bracket (840). For example, by positioning the second shaft (740) to penetrate the eleventh through hole (2250) of the first shaft bracket (840), the second portion (2220) of the second shaft bracket (880) may be connected to the second shaft (740).

[0327] According to one embodiment of the present disclosure, the second portion (2220) may include a surface surrounding the eleventh through hole (2250). For example, the surface surrounding the eleventh through hole (2250) of the second portion (2220) may be a surface that faces in a direction parallel to the third rotation axis (1810) and / or the fourth rotation axis (1820). According to one embodiment, at least a portion of the second portion (2220) of the first shaft bracket (840) may be in contact with the second elastic member (830). For example, the surface surrounding the eleventh through hole (2250) of the second portion (2220) may be in contact with the second elastic member (830) to support the second elastic member (830).

[0328] According to one embodiment of the present disclosure, the connecting portion (2230) connecting the first portion (2210) and the second portion (2220) may be arranged perpendicular to the third rotation axis (1810) and the fourth rotation axis (1820). For example, the connecting portion (2230) may be arranged perpendicular to the first elastic member (820) and the second elastic member (830). According to one embodiment, at least a portion of the connecting portion (2230) may be formed to be convex toward the hinge housing (520). For example, a central portion of the connecting portion (2230) may be formed to be convex toward the hinge housing (520). For example, the connecting portion (2230) may be arranged between an imaginary straight line connecting the upper end of the first portion (2210) and the upper end of the second portion (2220) and the hinge housing (520). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0329] FIG. 42 is an arrangement of a flexible display, elastic members, and a hinge housing in a folded state of a foldable electronic device according to one embodiment.

[0330] According to one embodiment of the present disclosure, as the foldable electronic device (100) is folded, the second housing (120) and / or the third housing (130) may rotate. While the second housing (120) and / or the third housing (130) rotate, the first rotation arm (610) and the second rotation arm (620) may rotate. While the first rotation arm (610) and the second rotation arm (620) rotate, the flexible display (160) may be at least partially supported by the first rotation arm (610) and the second rotation arm (620). While the first rotation arm (610) and the second rotation arm (620) rotate, the first sink arm (630) connected to the first rotation arm (610) and the third sink arm (650) connected to the first sink arm (630) can rotate together with the first rotation arm (610). While the first rotation arm (610) and the second rotation arm (620) rotate, the second sink arm (640) connected to the second rotation arm (620) and the fourth sink arm (660) connected to the second sink arm (640) can rotate together with the second rotation arm (620).

[0331] According to one embodiment of the present disclosure, referring to FIG. 42, in a folded state of the foldable electronic device (100), the folding portion (1300) of the flexible display (160) can be folded by the first rotation arm (610) and the second rotation arm (620). For example, the folding portion (1300) can be at least partially positioned on a virtual straight line connecting the first shaft (730) and the second shaft (740). For example, at least a portion of the folding portion (1300) can be positioned between the virtual straight line connecting the upper end of the first elastic member (820) and the upper end of the second elastic member (830) and the hinge housing (520).

[0332] According to one embodiment of the present disclosure, referring to FIG. 42, when the foldable electronic device (100) is in a folded state, the folding portion (1300) of the flexible display (160) may be at least partially positioned between the imaginary straight line connecting the upper portion of the first elastic member (820) and the upper portion of the second elastic member (830) and the hinge housing (520), so that the folding portion (1300) may not be interfered with by other components of the hinge module (510). Since the folding portion (1300) is not interfered with, deformation of the folding portion (1300) may not occur. In this way, the foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0333] FIG. 43 is a perspective view of a first ring member and a third ring member coupled to a first shaft according to one embodiment.

[0334] Although only the first ring member (910) and the third ring member (930) coupled to the first shaft (730) are illustrated in FIG. 43, the description of FIG. 43 can be equally applied to the second ring member (920) and the fourth ring member (940) coupled to the second shaft (740).

[0335] According to one embodiment of the present disclosure, as the third elastic member (860) and the fourth elastic member (870) are compressed, the second shaft bracket (880) may be arranged to prevent the third elastic member (860) and the fourth elastic member (870) from being detached. For example, a first portion formed on one side of the second shaft bracket (880) may be in contact with the third elastic member (860) to support the third elastic member (860). For example, a second portion formed on the other side opposite to one side of the second shaft bracket (880) may be in contact with the fourth elastic member (870) to support the fourth elastic member (870).

[0336] According to one embodiment of the present disclosure, the hinge module (510) may include a first ring member (910) that supports a first portion of a second shaft bracket (880). For example, one surface of the first ring member (910) may be arranged to contact one surface of the first portion of the second shaft bracket (880). For example, one surface of the first ring member (910) may be formed as a flat surface to support the second shaft bracket (880).

[0337] According to one embodiment of the present disclosure, the first ring member (910) may include a twelfth through hole (2310). For example, the first shaft (730) may be arranged to pass through the twelfth through hole (2310), such that the first ring member (910) may be coupled with the first shaft (730). For example, one surface surrounding the twelfth through hole (2310) of the first ring member (910) may be a surface supporting a first portion of the second shaft bracket (880).

[0338] According to one embodiment of the present disclosure, the hinge module (510) may include a third ring member (930) that supports the first ring member (910) so that the first ring member (910) does not detach from the first shaft (730). The third ring member (930) may include a fastening hole (2320) for fastening to the first shaft (730). For example, the fastening hole (2320) may be fastened to one end of the first shaft (730). For example, the fastening hole (2320) may be fastened to a fastening portion (2330) formed at one end of the first shaft (730). For example, the diameter of the fastening portion (2330) of the first shaft (730) may be smaller than the diameter of one end of the first shaft (730). For example, the fastening hole (2320) may be formed to correspond to the fastening portion (2330) of the first shaft (730). For example, the third ring member (930) may be fastened to the fastening portion (2330) of the first shaft (730) through the fastening hole (2320) in a direction perpendicular to the first shaft (730). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0339] Figure 44 is a perspective view of a fixed bracket according to one embodiment.

[0340] According to one embodiment of the present disclosure, the hinge module (510) may include a fixing bracket (950) that can fix the hinge module (510) to the hinge housing (520). One side of the fixing bracket (950) may include a first guide slot (2410) that is connected to one end of the first shaft (730). For example, one end of the first shaft (730) is coupled to the first guide slot (2410) of the fixing bracket (950), so that the first shaft (730) can be fixed to the fixing bracket (950). The first guide slot (2410) may be formed to correspond to the shape of the first shaft (730). For example, the first guide slot (2410) may be formed in a semi-circular shape so as to be coupled to the first shaft (730). For example, the fixed bracket (950) can be coupled to the first shaft (730) through the first guide slot (2410) in a direction perpendicular to the first shaft (730).

[0341] According to one embodiment of the present disclosure, the opposite side of the fixed bracket (950) may include a second guide slot (2420) connected to one end of the second shaft (740). For example, by coupling one end of the second shaft (740) to the second guide slot (2420) of the fixed bracket (950), the second shaft (740) may be fixed to the fixed bracket (950). The second guide slot (2420) may be formed to correspond to the shape of the second shaft (740). For example, the second guide slot (2420) may be formed in a semi-circular shape so as to be coupled to the second shaft (740). For example, the fixed bracket (950) may be coupled to the second shaft (740) through the second guide slot (2420) in a direction perpendicular to the second shaft (740).

[0342] According to one embodiment of the present disclosure, a fifth opening (2430) may be formed at a position adjacent to a first guide slot (2410) on one side of a fixed bracket (950). One side of the fixed bracket (950) may be fixed to a hinge housing (520) through the fifth opening (2430). A sixth opening (2440) may be formed at a position adjacent to a second guide slot (2420) on the other side of the fixed bracket (950). The other side of the fixed bracket (950) may be fixed to the hinge housing (520) through the sixth opening (2440). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0343] FIG. 45 is a drawing showing shafts coupled to a fixed bracket according to one embodiment.

[0344] Referring to FIG. 45, for example, one end of the first shaft (730) may be fastened to the first guide slot (2410) of the fixed bracket (950), so that the first shaft (730) may not be detached from the hinge module (510) while the foldable electronic device (100) is folded or unfolded. For example, one end of the first shaft (730) may be fastened to the first guide slot (2410) of the fixed bracket (950) that is fastened to the hinge housing (520), so that the first shaft (730) may be fastened to the hinge housing (520).

[0345] Referring to FIG. 45, for example, one end of the second shaft (740) may be fastened to the second guide slot (2420) of the fixed bracket (950), so that the second shaft (740) may not be detached from the hinge module (510) while the foldable electronic device (100) is folded or unfolded. For example, one end of the second shaft (740) may be fastened to the second guide slot (2420) of the fixed bracket (950) that is fixed to the hinge housing (520), so that the second shaft (740) may be fixed to the hinge housing (520). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, so that the foldable electronic device (100) is prevented from being excessively rotated beyond the third state and from being detached from the hinge module.

[0346] FIG. 46 is a drawing illustrating the combination of a hinge housing and a hinge module according to one embodiment.

[0347] According to one embodiment of the present disclosure, the hinge module (510) can be coupled to the hinge housing (520) via a plurality of fastening members. For example, the hinge module (510) can be fixed to the hinge housing (520) by having a first fastening member (1310) positioned to pass through an opening formed in one edge of one side, and inserted into a first fastening portion (1670) of the hinge housing (520). For example, the opening formed in one edge of one side can be a first opening (1450) of a rotation guide bracket (670). For example, the hinge module (510) can be fixed to the hinge housing (520) by having a second fastening member (1320) positioned to pass through an opening formed in another edge opposite to a position of one edge of one side, and inserted into a second fastening portion (1680) of the hinge housing (520). For example, the opening formed on the other edge of one side may be a second opening (1460) of the rotation guide bracket (670).

[0348] According to one embodiment of the present disclosure, for example, the hinge module (510) can be fixed to the hinge housing (520) by inserting a third fastening member (2510) that is positioned to penetrate an opening formed in one edge of the other side into a third fastening portion (2530) of the hinge housing (520). For example, the opening formed in one edge of the one side can be a fifth opening (2430) of the fixing bracket (950). For example, the hinge module (510) can be fixed to the hinge housing (520) by inserting a fourth fastening member (2520) that is positioned to penetrate an opening formed in another edge opposite to the position of one edge of the other side into a fourth fastening portion (2540) of the hinge housing (520). For example, the opening formed on the other edge of one side may be the sixth opening (2440) of the fixed bracket (950). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0349] FIG. 47 is a drawing illustrating a support plate in an unfolded state of a foldable electronic device according to one embodiment.

[0350] According to one embodiment of the present disclosure, a support plate (530) that at least partially supports a flexible display (160) may include a first support plate (2610) and a second support plate (2620). For example, the first support plate (2610) and the second support plate (2620) may be formed symmetrically to each other. For example, when the foldable electronic device (100) is unfolded, the first support plate (2610) and the second support plate (2620) may at least partially support the folding portion (1300) of the flexible display (160).

[0351] According to one embodiment of the present disclosure, the first support plate (2610) can be coupled to one side of the first rotation arm (610). For example, at least a portion of the first support plate (2610) can be inserted into a coupling groove formed on one surface of the first rotation arm (610) and coupled to the first rotation arm (610). In one embodiment, when the first support plate (2610) is coupled to one side of the first rotation arm (610), the first rotation arm (610) can rotate together as the first rotation arm (610) rotates about the first rotation axis (1710).

[0352] According to one embodiment of the present disclosure, the second support plate (2620) can be coupled to one side of the second rotation arm (620). For example, at least a portion of the second support plate (2620) can be inserted into a coupling groove formed on one surface of the second rotation arm (620) to be coupled to the second rotation arm (620). In one embodiment, when the second support plate (2620) is coupled to one side of the second rotation arm (620), the second rotation arm (620) can rotate together as the second rotation arm (620) rotates about the second rotation axis (1720).

[0353] According to one embodiment of the present disclosure, in an unfolded state of the foldable electronic device (100), the first support plate (2610) and the second support plate (2620) may be arranged parallel to each other. For example, in an unfolded state of the foldable electronic device (100), the first support plate (2610) and the second support plate (2620) may be arranged flat to at least partially support the folding portion (1300) of the flexible display (160). For example, in an unfolded state of the foldable electronic device (100), the first support plate (2610) and the second support plate (2620) may contact each other to form one flat surface to flatly support the folding portion (1300) of the flexible display (160). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0354] FIG. 48 is a drawing illustrating a support plate of a foldable electronic device in a folded state according to one embodiment.

[0355] According to one embodiment of the present disclosure, while the foldable electronic device (100) is folded, the first support plate (2610) and the second support plate (2620) may be spaced apart from each other. For example, as the second housing (120) rotates, the first rotation arm (610) rotates, and the first support plate (2610) coupled to the first rotation arm (610) may move toward one side of the hinge module (510). For example, as the third housing (130) rotates, the second rotation arm (620) rotates, and the second support plate (2620) coupled to the second rotation arm (620) may move toward the other side opposite to one side of the hinge module (510). For example, the first support plate (2610) and the second support plate (2620) may be positioned to be spaced apart from each other as the first support plate (2610) moves toward one side of the hinge module (510) and the second support plate (2620) moves toward the other side of the hinge module (510).

[0356] According to one embodiment of the present disclosure, while the first support plate (2610) is rotated together with the first rotation arm (610), the first support plate (2610) can rotate about a fifth rotation axis (2710) that is different from the first rotation axis (1710). For example, while the first support plate (2610) is rotated together with the first rotation arm (610), the first support plate (2610) can rotate about the fifth rotation axis (2710) until the foldable electronic device (100) is changed to a folded state while the first support plate (2610) is in contact with the rotation guide bracket (670). For example, the fifth rotation axis (2710) can be formed parallel to the first rotation axis (1710). For example, the first support plate (2610) can rotate along the rotation guide bracket (670) about the fifth rotation axis (2710).

[0357] According to one embodiment of the present disclosure, while the second support plate (2620) is rotated together with the second rotation arm (620), the second support plate (2620) can rotate about a sixth rotation axis (2720) that is different from the second rotation axis (1720). For example, while the second support plate (2620) is rotated together with the second rotation arm (620), the second support plate (2620) can rotate about the sixth rotation axis (2720) until the foldable electronic device (100) is changed to a folded state while the second support plate (2620) is in contact with the rotation guide bracket (670). For example, the sixth rotation axis (2720) can be formed parallel to the second rotation axis (1720). For example, the second support plate (2620) can rotate along the rotation guide bracket (670) about the sixth rotation axis (2720). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being detached from the hinge module.

[0358] FIG. 49 is a layout of a flexible display and a support plate in an unfolded state of a foldable electronic device according to one embodiment.

[0359] According to one embodiment of the present disclosure, when the foldable electronic device (100) is unfolded, one side of the flexible display (160) may be supported by the first rotation arm (610) and the first sync arm (630), and the other side of the flexible display opposite to the one side may be supported by the second rotation arm (620) and the second sync arm (640). In one embodiment, the folding portion (1300) of the flexible display (160) may be at least partially supported by the support plate (530). For example, one side of the folding portion (1300) may be supported by the first support plate (2610). For example, the other side of the folding portion (1300) may be supported by the second support plate (2620).

[0360] According to one embodiment of the present disclosure, when the foldable electronic device (100) is unfolded, the first support plate (2610) and the second support plate (2620) can support the folding portion (1300) of the flexible display (160) in a flat manner. For example, a single flat surface formed by one side of the first support plate (2610) and one side of the second support plate (2620) can support the folding portion (1300) of the flexible display (160). In this way, a foldable electronic device (100) having an optimized interlocking structure between components within a defined space is implemented, thereby preventing the foldable electronic device (100) from being excessively rotated beyond the third state and from being separated from the hinge module.

[0361] FIG. 50 is a layout of a flexible display and a support plate in a folded state of a foldable electronic device according to one embodiment.

[0362] According to one embodiment of the present disclosure, when the foldable electronic device (100) is in a folded state, the folding portion (1300) of the flexible display (160) may be positioned between a virtual straight line connecting the upper end of the first shaft (730) and the upper end of the second shaft (740) and the hinge housing (520). For example, the folding portion (1300) of the flexible display (160) may be positioned at least partially on the virtual straight line connecting the first shaft (730) and the second shaft (740).

[0363] According to one embodiment of the present disclosure, in a folded state of the foldable electronic device (100), the first support plate (2610) and the second support plate (2620) may be spaced apart from each other so that the folding portion (1300) of the flexible display (160) may be positioned between a virtual straight line connecting the upper end of the first shaft (730) and the upper end of the second shaft (740) and the hinge housing (520). As the first support plate (2610) and the second support plate (2620) are spaced apart from each other, in a folded state of the foldable electronic device (100), the folding portion (1300) of the flexible display (160) may not come into contact with the first support plate (2610) and the second support plate (2620). For example, the first support plate (2610) may be moved to one side of the hinge module (510) and the second support plate (2620) may be moved to the other side of the hinge module (510) so that the first support plate (2610) and the second support plate (2620) are spaced apart from the folding member (1300) by a predetermined distance.

[0364] One embodiment of the present disclosure is a device for providing a wide hinge structure that allows a first housing to be placed between a second housing and a third housing when the multi-foldable electronic device is in a folded state.

[0365] One embodiment of the present disclosure can provide a foldable electronic device including a linkage pin connecting a rotation arm and a sink arm that rotate about different rotation axes during the process of folding or unfolding the foldable electronic device.

[0366] One embodiment of the present disclosure can provide a foldable electronic device in which the cam portion of the sink arm and the cam portion of the cam member are arranged to be engaged with each other, thereby allowing the housings to maintain a predetermined angle.

[0367] One embodiment of the present disclosure can provide a foldable electronic device including a sliding member capable of guiding rotation of a sink arm by a spiral portion of a sliding member connected to a spiral portion of the sink arm.

[0368] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary skill in the technical field to which the present disclosure pertains.

[0369] According to one embodiment of the present disclosure, a foldable electronic device may include a housing including a first housing, a second housing, and a hinge housing at least partially positioned between the first housing and the second housing, a flexible display at least partially accommodated in the first housing and the second housing, and a hinge module connected to the first housing and the second housing. The hinge module may include a first shaft corresponding to a first rotational axis, a second shaft corresponding to a second rotational axis, and a first sync arm configured to rotate about the first rotational axis while the first housing rotates. The first sync arm may include a first through hole through which the first shaft passes and a first spiral portion. The hinge module may include a second sync arm configured to rotate about the second rotational axis while the second housing rotates. The second sync arm may include a second through hole through which the second shaft passes and a second spiral portion. The hinge module may include a sliding member configured to move in a direction parallel to the first rotation axis and the second rotation axis while at least one of the first housing or the second housing rotates. The sliding member may include a third through hole through which the first shaft passes, a fourth through hole through which the second shaft passes, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion. The folding portion of the flexible display may be at least partially positioned between an imaginary straight line connecting an upper end of the third spiral portion and an upper end of the fourth spiral portion of the sliding member and the hinge housing when the housing is folded.

[0370] According to one embodiment of the present disclosure, the folding portion of the flexible display may be at least partially positioned between the first shaft and the second shaft when the flexible display is viewed in a direction perpendicular to the hinge housing when the housing is folded.

[0371] According to one embodiment of the present disclosure, the hinge module may include a third sink arm configured to rotate about the first rotational axis while the first housing rotates. The third sink arm may include a fifth through hole through which the first shaft passes and a fifth spiral portion. The hinge module may include a fourth sink arm configured to rotate about the second rotational axis while the second housing rotates. The fourth sink arm may include a sixth through hole through which the second shaft passes and a sixth spiral portion.

[0372] According to one embodiment of the present disclosure, the sliding member may include a seventh spiral portion corresponding to the fifth spiral portion and an eighth spiral portion corresponding to the sixth spiral portion.

[0373] According to one embodiment of the present disclosure, while the first housing rotates, the first spiral portion of the first sink arm rotates along the third spiral portion of the sliding member, the fifth spiral portion of the third sink arm rotates along the seventh spiral portion of the sliding member, and the sliding member can move in a direction parallel to the first rotation axis and the second rotation axis by the rotation of the first spiral portion and the fifth spiral portion.

[0374] According to one embodiment of the present disclosure, a first cam portion may be formed on a surface facing in a direction parallel to the first rotation axis among a portion surrounding the fifth through hole of the third sink arm. A second cam portion may be formed on a surface facing in a direction parallel to the second rotation axis among a portion surrounding the sixth through hole of the fourth sink arm.

[0375] According to one embodiment of the present disclosure, the hinge module may include a cam member including a third cam portion corresponding to the first cam portion, a fourth cam portion corresponding to the second cam portion, and a body portion connecting the third cam portion and the fourth cam portion.

[0376] According to one embodiment of the present disclosure, the central portion of the connecting portion may be formed in a convex shape toward the hinge housing.

[0377] According to one embodiment of the present disclosure, the third sink arm may include a seventh through hole through which the first shaft passes. The fourth sink arm may include an eighth through hole through which the second shaft passes. A fifth cam portion may be formed on a surface of a portion of the third sink arm surrounding the seventh through hole, which faces in a direction parallel to the first rotational axis. A sixth cam portion may be formed on a surface of a portion of the fourth sink arm surrounding the eighth through hole, which faces in a direction parallel to the second rotational axis.

[0378] According to one embodiment of the present disclosure, the hinge module may include a shaft bracket including a first portion adjacent to the portion surrounding the seventh through hole of the third sink arm, a second portion adjacent to the portion surrounding the eighth through hole of the fourth sink arm, and a connecting portion positioned between the first portion and the second portion.

[0379] According to one embodiment of the present disclosure, the hinge module may include a first elastic member positioned between the third cam portion of the cam member and the first portion of the shaft bracket, and a second elastic member positioned between the fourth cam portion of the cam member and the second portion of the shaft bracket.

[0380] According to one embodiment of the present disclosure, the hinge module may include a first rotation arm configured to rotate about a third rotation axis while the first housing rotates by being slidably connected to the first sink arm. The hinge module may include a second rotation arm configured to rotate about a fourth rotation axis while the second housing rotates by being slidably connected to the second sink arm. When the housing is unfolded, the flexible display may be configured to be at least partially supported by the first rotation arm and the second rotation arm.

[0381] According to one embodiment of the present disclosure, the hinge module may include a first pin member inserted into a first sliding hole of the first rotation arm and a first insertion hole of the sink arm. While the first housing rotates, the first rotation arm and the first sink arm may be rotated together by the pin member. While the first housing rotates, the pin member may slide within the sliding hole.

[0382] According to one embodiment of the present disclosure, the hinge module may include a first support member connected to the first rotation arm and extending in a direction parallel to the first rotation axis. The hinge module may include a second support member connected to the second rotation arm and extending in a direction parallel to the second rotation axis. When the housing is unfolded, the flexible display may be configured to be at least partially supported by the first support member and the second support member.

[0383] According to one embodiment of the present disclosure, the first support member and the second support member may be configured to be adjacent to each other when the housing is unfolded, and spaced apart from each other when the housing is folded. When the housing is folded, the folding portion of the flexible display may be at least partially positioned between the first support member and the second support member.

[0384] According to one embodiment of the present disclosure, the first rotation arm may include a first mounting portion positioned to contact a first stopper of the hinge housing when the housing is in a folded state. The second rotation arm may include a second mounting portion positioned to contact a second stopper of the hinge housing when the housing is in a folded state.

[0385] According to one embodiment of the present disclosure, the hinge module may include a rotation guide bracket mounted on the hinge housing. A first end of the first shaft and a first end of the second shaft may be fixed to the rotation guide bracket. A second end of the first shaft and a second end of the second shaft may be fixed to the hinge housing.

[0386] According to one embodiment of the present disclosure, the hinge module may include a rotation guide bracket mounted on the hinge housing. A rib guide portion may be formed at one end of the rotation guide bracket facing the sliding member. A rib accommodated in the rib guide portion may be formed at one end of the sliding member facing the rotation guide bracket. As the sliding member moves in a direction parallel to the first rotation axis and the second rotation axis while at least one of the first housing or the second housing rotates, the rib may be configured to move in a direction parallel to the first rotation axis and the second rotation axis within the rib guide portion.

[0387] According to one embodiment of the present disclosure, the hinge module can be secured to the hinge housing at a first edge adjacent to the first housing and a second edge adjacent to the second housing.

[0388] According to one embodiment of the present disclosure, the housing may include a third housing and another hinged housing positioned at least partially between the second housing and the third housing. When the housing is folded, the third housing may be positioned between the first housing and the second housing.

[0389] According to one embodiment of the present disclosure, a foldable electronic device may include a housing including a first housing, a second housing, and a hinge housing at least partially positioned between the first housing and the second housing, a flexible display at least partially accommodated in the first housing and the second housing, and a hinge module connected to the first housing and the second housing. The hinge module may include a first shaft corresponding to a first rotation axis, a second shaft corresponding to a second rotation axis, and a first sink arm configured to rotate about the first rotation axis while the first housing rotates. The first sink arm may include a first through hole through which the first shaft passes and a first spiral portion. A first cam portion may be formed on a surface of a portion of the first sink arm surrounding the first through hole that faces in a direction parallel to the first rotation axis. The hinge module may include a second sink arm configured to rotate about the second rotation axis while the second housing rotates. The second sink arm may include a second through hole through which the second shaft passes and a second spiral portion. A second cam portion may be formed on a surface of the portion of the second sink arm surrounding the second through hole, the surface facing in a direction parallel to the second rotational axis. The hinge module may include a cam member including a third cam portion corresponding to the first cam portion, a fourth cam portion corresponding to the second cam portion, and a connecting portion connecting the third cam portion and the fourth cam portion. A central portion of the connecting portion may be positioned between an imaginary straight line connecting the first shaft and the second shaft and the hinge housing. The hinge module may include a sliding member configured to move in a direction parallel to the first rotational axis and the second rotational axis while at least one of the first housing or the second housing rotates.The sliding member may include a third through hole through which the first shaft passes, a fourth through hole through which the second shaft passes, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion.

[0390] According to one embodiment of the present disclosure, the flexible display can be positioned at least partially between the first shaft and the second shaft when the housing is folded.

[0391] According to one embodiment of the present disclosure, the first sink arm may include a fifth through hole through which the first shaft passes. The second sink arm may include a sixth through hole through which the second shaft passes. A fifth cam portion may be formed on a surface of a portion of the first sink arm surrounding the fifth through hole, which faces in a direction parallel to the first rotation axis. A sixth cam portion may be formed on a surface of a portion of the second sink arm surrounding the sixth through hole, which faces in a direction parallel to the second rotation axis.

[0392] According to one embodiment of the present disclosure, the hinge module may include a shaft bracket including a first portion adjacent to the portion surrounding the fifth through hole of the first sink arm, a second portion adjacent to the portion surrounding the sixth through hole of the second sink arm, and a connecting portion positioned between the first portion and the second portion.

[0393] According to one embodiment of the present disclosure, the hinge module may include a first elastic member positioned between the third cam portion of the cam member and the first portion of the shaft bracket, and a second elastic member positioned between the fourth cam portion of the cam member and the second portion of the shaft bracket.

[0394] According to one embodiment of the present disclosure, a foldable electronic device may be provided that includes a wide hinge structure that allows the housings to have a wide rotation radius.

[0395] According to one embodiment of the present disclosure, a foldable electronic device can be provided in which a sink arm and a rotary arm that rotate about different rotation axes are connected through a pin member, so that the sink arm can be rotated by rotation of the rotary arm.

[0396] According to one embodiment of the present disclosure, when the foldable electronic device is folded, the cam structure of the sink arm and the cam structure of the cam member are arranged to be engaged, thereby providing a foldable electronic device fixed at an angle desired by the user.

[0397] In addition, various effects may be provided directly or indirectly through the present disclosure.

[0398] In the specific embodiments of the present disclosure described above, components included in the disclosure are expressed singularly or plurally, depending on the specific embodiment presented. However, the singular or plural expressions are selected to suit the presented situation for convenience of explanation, and the present disclosure is not limited to singular or plural components. Components expressed in plural may be composed of singular elements, or components expressed in singular may be composed of plural elements.

[0399] Additionally, in the present disclosure, terms such as “part”, “module”, etc. may refer to a hardware component such as a processor or circuit, and / or a software component executed by a hardware component such as a processor.

[0400] The specific implementations described in this disclosure are merely exemplary and do not limit the scope of the present disclosure in any way. For the sake of brevity, descriptions of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted.

[0401] Additionally, in the present disclosure, “comprising at least one of a, b, or c” may mean “comprising only a, comprising only b, comprising only c, comprising both a and b, comprising both b and c, comprising both a and c, or comprising all of a, b, and c.”

[0402] While the detailed description of this disclosure has described specific embodiments, it should be understood that various modifications are possible without departing from the scope of this disclosure. Therefore, the scope of this disclosure should not be limited to the described embodiments, but should be defined not only by the scope of the claims described below, but also by equivalents thereof.

Claims

1. In foldable electronic devices, A housing comprising a first housing, a second housing, and a hinge housing positioned at least partially between the first housing and the second housing; A flexible display supported by the first housing and the second housing; and It includes a hinge module that rotatably connects the first housing and the second housing, The above hinge module: A first shaft corresponding to the first rotation axis; A second shaft corresponding to the second rotation axis; A first sink arm configured to rotate about the first rotation axis while the first housing rotates, the first sink arm including a first through hole through which the first shaft passes and a first spiral portion extending from a surface on which the first through hole is formed; A second sink arm configured to rotate about the second rotation axis while the second housing rotates, the second sink arm including a second through hole through which the second shaft passes and a second spiral portion extending from a surface on which the second through hole is formed; and A sliding member configured to move in a direction parallel to the first rotation axis and the second rotation axis while at least one of the first housing or the second housing rotates, wherein the sliding member includes a third through hole through which the first shaft passes, a fourth through hole through which the second shaft passes, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion. A foldable electronic device, wherein the folding portion of the flexible display is at least partially positioned between an imaginary straight line connecting the upper end of the third spiral portion and the upper end of the fourth spiral portion of the sliding member and the hinge housing when the housing is folded.

2. In claim 1, the folding portion of the flexible display, A foldable electronic device, wherein the flexible display is at least partially positioned between the first shaft and the second shaft when viewed in a direction perpendicular to the hinge housing when the housing is folded.

3. In claim 1, the hinge module: A third sink arm configured to rotate about the first rotation axis while the first housing rotates, the third sink arm including a fifth through hole through which the first shaft passes and a fifth spiral portion extending from a surface on which the fifth through hole is formed; and A foldable electronic device comprising a fourth sink arm configured to rotate about the second rotation axis while the second housing rotates, the fourth sink arm including a sixth through hole through which the second shaft passes and a sixth spiral portion extending from a surface on which the sixth through hole is formed.

4. In claim 3, the sliding member, A foldable electronic device comprising a seventh spiral portion corresponding to the fifth spiral portion and an eighth spiral portion corresponding to the sixth spiral portion.

5. In paragraph 4, While the first housing rotates, the first spiral portion of the first sink arm rotates along the third spiral portion of the sliding member, and the fifth spiral portion of the third sink arm rotates along the seventh spiral portion of the sliding member. A foldable electronic device, wherein the sliding member moves in the direction parallel to the first rotation axis and the second rotation axis by rotation of the first spiral portion and the fifth spiral portion.

6. In claim 3, A first cam portion is formed on a surface facing in a direction parallel to the first rotation axis among the portions surrounding the fifth through hole of the third sink arm, A foldable electronic device, wherein a second cam portion is formed on a surface facing in a direction parallel to the second rotation axis among the portions surrounding the sixth through hole of the fourth sink arm.

7. In claim 6, the hinge module: A foldable electronic device comprising a cam member including a third cam portion corresponding to the first cam portion, a fourth cam portion corresponding to the second cam portion, and a connecting portion connecting the third cam portion and the fourth cam portion.

8. In claim 7, A foldable electronic device, wherein the central portion of the connecting portion is formed in a convex shape toward the hinge housing, and the central portion of the connecting portion is positioned between an imaginary straight line connecting the first shaft and the second shaft and the hinge housing.

9. In claim 7, The third sink arm includes a seventh through hole through which the first shaft passes, The fourth sink arm includes an eighth through hole through which the second shaft passes, A fifth cam portion is formed on a surface facing in a direction parallel to the first rotation axis among the portions surrounding the seventh through hole of the third sink arm, A foldable electronic device, wherein a sixth cam portion is formed on a surface facing in a direction parallel to the second rotation axis among the portions surrounding the eighth through hole of the fourth sink arm.

10. In claim 9, the hinge module: A foldable electronic device comprising a shaft bracket including a first portion adjacent to the portion surrounding the seventh through hole of the third sink arm, a second portion adjacent to the portion surrounding the eighth through hole of the fourth sink arm, and a connecting portion positioned between the first portion and the second portion.

11. In claim 10, the hinge module: A first elastic member positioned between the third cam portion of the cam member and the first portion of the shaft bracket; and A foldable electronic device comprising a second elastic member positioned between the fourth cam portion of the cam member and the second portion of the shaft bracket.

12. In claim 1, the hinge module: A first rotation arm configured to rotate about a third rotation axis while the first housing rotates, as slidably connected to the first sink arm; and A second rotation arm configured to rotate about a fourth rotation axis while the second housing rotates, as slidably connected to the second sink arm, A foldable electronic device, wherein, when the housing is unfolded, the flexible display is configured to be at least partially supported by the first rotation arm and the second rotation arm.

13. In paragraph 12, The above hinge module, It includes a first pin member inserted into the first sliding hole of the first rotary arm and the first insertion hole of the sink arm; While the first housing rotates, the first rotating arm and the first sink arm rotate together by the pin member, A foldable electronic device, wherein the first pin member slides inside the first sliding hole while the first housing rotates.

14. In claim 1, The housing comprises a third housing, and another hinge housing positioned at least partially between the second housing and the third housing, A foldable electronic device, wherein the third housing is positioned between the first housing and the second housing when the housing is folded.

15. In a foldable electronic device, A housing comprising a first housing, a second housing, and a hinge housing positioned at least partially between the first housing and the second housing; A flexible display at least partially accommodated in the first housing and the second housing; and comprising a hinge module connected to the first housing and the second housing; The above hinge module: A first shaft corresponding to the first rotation axis; A second shaft corresponding to the second rotation axis; A first sink arm configured to rotate about the first rotation axis while the first housing rotates, the first sink arm including a first through hole through which the first shaft passes and a first spiral portion, and a first cam portion formed on a surface of the portion of the first sink arm surrounding the first through hole that faces in a direction parallel to the first rotation axis; A second sink arm configured to rotate about the second rotation axis while the second housing rotates, the second sink arm including a second through hole through which the second shaft passes and a second spiral portion, and a second cam portion formed on a surface of the portion of the second sink arm surrounding the second through hole that faces in a direction parallel to the second rotation axis; A cam member including a third cam portion corresponding to the first cam portion, a fourth cam portion corresponding to the second cam portion, and a connecting portion connecting the third cam portion and the fourth cam portion, the central portion of the connecting portion being positioned between an imaginary straight line connecting the first shaft and the second shaft and the hinge housing; and A foldable electronic device comprising a sliding member configured to move in a direction parallel to the first rotation axis and the second rotation axis while at least one of the first housing or the second housing rotates, wherein the sliding member includes a third through hole through which the first shaft passes, a fourth through hole through which the second shaft passes, a third spiral portion corresponding to the first spiral portion, and a fourth spiral portion corresponding to the second spiral portion.

Images