Foldable electronic device comprising shape memory alloy

Abstract

Disclosed is an electronic device comprising a hinge structure (140. 140-1), a first housing (110), a second housing (120), and a first magnetic module (150) disposed in the first housing. The first magnetic module includes: a first magnetic housing (151) accommodating at least one magnetic body (151a, 151b); a driving unit (153) coupled to the first magnetic housing so that the first magnetic housing can be moved; a power supply unit (155) seated on the driving unit; a first elastic member (156) coupled to the first magnetic housing and the driving unit; and a wire (154) coupled to the power supply unit and the first magnetic housing. The wire includes a shape memory alloy so that the length can be changed. The first elastic member is deformed in a direction opposite to the direction in which the wire is deformed. The power supply unit comprises a second elastic member (158) coupled to a substrate (159) and the wire such that same can be deformed in which the wire is deformed. Various other embodiments identified through the specification are also possible.

Description

Foldable electronic devices containing shape memory alloys

[0001] Embodiments disclosed in this document relate to foldable electronic devices comprising shape memory alloys.

[0002] Foldable electronic devices (e.g., laptops, foldable smartphones) utilize physical fastening structures and / or the magnetic force of magnets to maintain a folded (or closed) state. In the folded state, a user can unfold the foldable electronic device by removing the fastening force of the physical fastening structures (e.g., buttons) of the two housings that fold toward each other and / or the attractive force between the magnets arranged in the two housings. During this process, the user must perform an operation that applies a certain level of external force or more to the foldable electronic device, and if this operation is repeated for each unfolding operation, user convenience and product usability may be reduced. To easily implement the unfolding operation of the foldable electronic device, a method of moving the magnets so that the attractive force between the magnets is reduced may be considered.

[0003] 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 in connection with the present disclosure.

[0004] An electronic device according to an embodiment disclosed in this document may include a hinge structure (140, 140-1), a first housing (110) and a second housing (120) that can be folded around the hinge structure, a display (130, 131) at least part of which is disposed in the first housing and the second housing, and a first magnetic module (150) disposed in the first housing. The first magnetic module may include at least one magnetic body (151a, 151b) arranged in a first direction, a first magnetic body housing (151) accommodating the at least one magnetic body, a driving unit (153) connected to the first housing and coupled with the first magnetic body housing so that the first magnetic body housing can move with respect to the first housing, a power supply unit (155) mounted on one side of the driving unit, a first elastic member (156) having one end in the first direction coupled with the first magnetic body housing and the other end coupled with the driving unit, and a wire (154) having one end in the first direction coupled with the power supply unit and the other end coupled with the first magnetic body housing. The wire may include a shape memory alloy so that its length in the first direction can be deformed as current is supplied from the power supply unit. The first elastic member may be configured to be deformed in a direction opposite to a deformation direction of the wire. The above-mentioned power supply unit may include a substrate (159) electrically connected to the wire and a second elastic member (158) disposed on the substrate and coupled to the end of the wire so as to be deformable in the deformation direction of the wire.

[0005] A foldable electronic device according to an embodiment disclosed in this document may include a hinge structure (140, 140-1), a first housing (110) connected to the hinge structure, a second housing (120) coupled to the hinge structure so as to be foldable with respect to the first housing about the hinge structure, a display (130, 131) at least partially disposed in the first housing and the second housing, and a first magnetic module (150) disposed on an inner edge of the first housing located below the display. The first magnetic module may include at least one magnetic body (151a, 151b) arranged in a first direction, a first magnetic body housing (151) accommodating the at least one magnetic body, a driving unit (153) at least partially connected to the first housing and at least partially coupled with the first magnetic body housing so that the first magnetic body housing can move with respect to the first housing, a power supply unit (155) mounted on one side of the driving unit (153), a first elastic member (156) having one end in the first direction coupled to the first magnetic body housing and the other end coupled to the driving unit, and a wire (154) having one end in the first direction coupled to the power supply unit and the other end coupled to the first magnetic body housing. The wire may include a shape memory alloy so that its length in the first direction can be deformed as current is supplied from the power supply unit. The first elastic member may be configured to be deformed in a direction opposite to a deformation direction of the wire. At least a portion adjacent to one end of the wire that is coupled to the power supply section may be formed to be elastically deformed in a direction corresponding to a change in length of the wire in the first direction.

[0006] FIG. 1A is a front perspective view of an electronic device according to one embodiment.

[0007] FIG. 1b is a plan view of the rear side of an electronic device according to one embodiment.

[0008] FIG. 2 is an exploded perspective view of a portion of the electronic device of FIGS. 1A and 1B including a hinge device according to various embodiments of the present disclosure.

[0009] FIG. 3 is a diagram illustrating a part of a process of unfolding an electronic device from a folded state according to one embodiment.

[0010] FIG. 4 is a drawing showing an example of the shape of a first magnetic module and a second magnetic module according to one embodiment.

[0011] Figure 5 is a drawing showing the first magnetic module of Figure 4 viewed from a different angle.

[0012] FIG. 6 is an exploded perspective view of a first magnetic module of an electronic device according to one embodiment.

[0013] FIG. 7 is a drawing showing a part of the coupling structure of the first magnetic module according to one embodiment.

[0014] FIG. 8 is a drawing showing another part of the coupling structure of the first magnetic module according to one embodiment.

[0015] FIG. 9 is a drawing showing a wire relaxation state of a first magnetic module including a wire according to one embodiment.

[0016] FIG. 10 is a drawing showing a wire shrinkage state of a first magnetic module including a wire according to one embodiment.

[0017] FIG. 11 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0018] FIG. 12 is a drawing showing an example of a shape of a substrate of a power supply unit viewed from various angles according to one embodiment.

[0019] FIG. 13 is a drawing showing an example of a shape of a second elastic member according to one embodiment.

[0020] Fig. 14 is a drawing showing the second elastic member of Fig. 13 viewed from various angles.

[0021] FIG. 15 is a drawing showing an example of a form in which a wire and an elastic member are deformed according to one embodiment.

[0022] FIG. 16 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0023] FIG. 17 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0024] FIG. 18 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0025] FIG. 19 is a drawing showing an example of a form in which a first magnetic module and a second magnetic module are applied to an electronic device according to one embodiment.

[0026] FIG. 20 is a drawing showing an example of a form in which a first magnetic module and a second magnetic module according to one embodiment are applied to an electronic device.

[0027] FIG. 21 is a block diagram of an exemplary electronic device capable of performing the operations described in this document.

[0028] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0029] Hereinafter, various embodiments of the present invention will be described with reference to the attached drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that the present invention encompasses various modifications, equivalents, and / or alternatives of the embodiments.

[0030] Embodiments disclosed in this document relate to embodiments in which modules including magnets are respectively arranged in two housings of a foldable electronic device, and at least one magnetic module (e.g., a first magnetic module) of the two modules includes a shape memory alloy wire. The shape memory alloy wire can change in length according to the supply of current, and accordingly, a magnet connected to the wire and a first magnetic module including the magnet can move in one direction. By the movement of the first magnetic module, a magnetic force (or attractive force) acting between the two magnetic modules can be reduced, and the foldable electronic device can be changed from a folded state to an unfolded state. By controlling the movement of the first magnetic module, an easy unfolding motion of the foldable electronic device can be implemented without a direct operation by a user (e.g., an operation of widening a gap between the two housings). In addition, by moving the first magnetic module by changing the length of the shape memory alloy wire, power consumption can be reduced compared to a case in which a separate actuator (e.g., a motor) is used, and miniaturization of the magnetic module can be achieved. The “movement” of the above first magnetic module may mean a case where some components included in the first magnetic module move relative to other components.

[0031] FIG. 1A is a front perspective view of an electronic device according to one embodiment.

[0032] FIG. 1b is a plan view of the rear side of an electronic device according to one embodiment.

[0033] Referring to FIGS. 1A and 1B , in one embodiment, the electronic device (100) may include a first housing (110) (e.g., a first housing structure) including a first side member (113) (e.g., a side bezel) and a second housing (120) (e.g., a second housing structure) including a second side member (123) (e.g., a side bezel) that are foldably coupled to each other with respect to a folding axis (F) through at least one hinge device (140, 140-1) (e.g., a hinge module or a hinge structure). For example, the first housing (110) and the second housing (120) may be configured as a foldable housing (e.g., a housing structure). For example, the electronic device (100) may include a first display (130) (e.g., a flexible display, a foldable display, or a main display) arranged to be supported by a first housing (110) and a second housing (120). For example, the first housing (110) may include a first side (111) and a second side (112) facing in an opposite direction (e.g., a -z-axis direction) of the first side (111). For example, the second housing (120) may include a third side (121) and a fourth side (122) facing in an opposite direction (e.g., a -z-axis direction) of the third side (121). For example, the first housing (110) may include a first rear cover (114) coupled with a first side member (113). For example, the second housing (120) may include a second rear cover (124) coupled with a second side member (123). For example, when the electronic device (100) is in a fully unfolded first state (e.g., an unfolded state or an unfolded state), the first side (111) and the third side (121) may be operated so that they face substantially the same direction (e.g., a z-axis direction). For example, when the electronic device (100) is in a fully folded second state (e.g., a folded state or a folded state), the first side (111) and the third side (121) may face each other or face opposite directions.For example, the electronic device (100) may be operated to maintain a third state (e.g., an intermediate state) between the first state and the second state.

[0034] According to one embodiment, the electronic device (100) may include a first receiver (101), at least one first sensor module (104) (e.g., an ambient light sensor) and / or at least one first camera module (105) (e.g., a UDC, under display camera) disposed on a first side (111) of the first housing (110). For example, the electronic device (100) may include at least one key (106) disposed on a first side member (113). For example, the electronic device (100) may include at least one second camera module (108) and / or a flash (109) disposed on a second side (112) of the first housing (110) (e.g., a first rear cover (114)). For example, the electronic device (100) may include a second display (131) disposed on a fourth side (122) of a second housing (120), at least one third camera module (125) (e.g., UDC, under display camera), at least one second sensor module (126), and / or a second receiver (127). For example, the second display (131) may be disposed to be visible from the outside through at least a portion of the second rear cover (124). For example, the electronic device (100) may include a speaker (102) disposed on a second side member (123), a microphone (103) disposed on a first side member (113), and / or a connector port (107). At least some of the components described above may be disposed in the first housing (110) and / or the second housing (120).

[0035] According to one embodiment, the first display (130) (e.g., a flexible display) may include a first region (130a) (e.g., a first planar portion) corresponding to at least a portion of the first surface (111), a second region (130b) (e.g., a second planar portion) corresponding to at least a portion of the third surface (121), and a third region (130c) (e.g., a flexible portion) connecting the first region (130a) and the second region (130b) and being deformable in a second state (e.g., a folded state) and / or a third state of the electronic device (100). For example, the third region (130c) may be positioned at a position at least partially overlapping with at least one hinge device (140, 140-1) when the first display (130) is viewed from above (e.g., in the z-axis direction). For example, the first display (130) may be arranged so that it is not visible from the outside in the second state by having the first side (111) and the third side (121) face each other (e.g., inward-fold type). For example, the first display (130) may be arranged so that it is visible from the outside in the second state by having the first side (111) and the third side (121) face each other in opposite directions (e.g., outward-fold type).

[0036] FIG. 2 is an exploded perspective view of a portion of the electronic device of FIGS. 1A and 1B including a hinge device according to various embodiments of the present disclosure.

[0037] Referring to FIG. 2, in one embodiment, the electronic device (100) may include at least one hinge device (140, 140-1) (e.g., a hinge module or a hinge structure) connecting the first housing (110) and the second housing (120) under the first display (130) (e.g., in the -z-axis direction). For example, the at least one hinge device (140, 140-1) may include a first hinge device (140) and a second hinge device (140-1) spaced apart from the first hinge device (140) along a direction parallel to the folding axis (F) (e.g., in the ±y-axis direction). For example, at least one hinge device (140, 140-1) may be supported by a first support member (1131) extending from the first side member (113) to the first space (1101) of the first housing (110) and a second support member (1231) extending from the second side member (123) to the second space (1201) of the second housing (120). For example, at least one hinge device (140, 140-1) may be arranged so as not to be visible from the outside through a hinge housing (170) (e.g., a hinge cover) between the first housing (110) and the second housing (120).

[0038] According to one embodiment, the first hinge device (140) may include a first rotation member (141) (e.g., a first arm or a first rotator) disposed on a first support member (1131) of the first housing (110), a second rotation member (142) (e.g., a second arm or a second rotator) disposed on a second support member (1231) of the second housing (120), and a gear assembly (143) connected to the first rotation member (141) and the second rotation member (142) such that the first housing (110) and the second housing (120) rotate symmetrically with respect to each other. For example, the gear assembly (143) may include a plurality of gears (e.g., spur gears and / or worm gears) gear-coupled to one another. For example, the gear assembly (143) may include a cam coupling structure for urging the first housing (110) and the second housing (120) in a direction in which they are to transition from a first state (e.g., an unfolded state or an unfolded state) to a second state (e.g., a folded state or a folded state) or in a direction in which they are to transition from the second state to the first state, based on a predetermined angle, and for providing a free stop at various folding angles. For example, the second hinge device (140-1) may have substantially the same configuration as the first hinge device (140).

[0039] According to one embodiment, the electronic device (100) may include a first hinge plate (171) connected to a first support member (1131) and / or a first rotation member (141). The electronic device (100) may include a second hinge plate (172) connected to a second support member (1231) and / or a second rotation member (142). For example, at least one hinge device (140, 140-1), the first rotation member (141), the second rotation member (142), the first hinge plate (171), and the second hinge plate (172) may form substantially the same plane as the first support member (1131) and the second support member (1231) when the electronic device (100) is in a first state. For example, the second hinge device (140-1) may be substantially symmetrical with the first hinge device (140) or may have a substantially identical configuration.

[0040] In one embodiment, the electronic device (100) may include a first magnetic module (150) disposed in a first housing (110) and a second magnetic module (160) disposed in a second housing (120). The first magnetic module (150) may be disposed in a first space (1101) of the first housing (110), and the second magnetic module (160) may be disposed in a second space (1201) of the second housing (120). The first magnetic module (150) and the second magnetic module (160) may be disposed at positions symmetrical with respect to the folding axis (F) in a first state (e.g., an unfolded state) of the electronic device (100). For example, the first magnetic module (150) may be arranged at a position spaced apart from the folding axis (F) in the x-axis direction by a predetermined distance, and the second magnetic module (160) may be arranged at a position spaced apart from the folding axis (F) in the -x-axis direction by the same distance as the distance. For example, the first magnetic module (150) may be arranged in a space (A1) adjacent to one corner of the first side member (113) that is furthest from the folding axis (F) in the x-axis direction (e.g., the inner edge of the first side member (113)). For example, the second magnetic module (160) may be arranged in a space (A2) adjacent to one corner of the second side member (123) that is furthest from the folding axis (F) in the -x-axis direction (e.g., the inner edge of the second side member (123)). The first magnetic module (150) and the second magnetic module (160) can be positioned at corresponding positions so that a magnetic force (e.g., attractive force) can be generated between them in a second state (e.g., folded state) of the electronic device (100).

[0041] FIG. 3 is a diagram illustrating a part of a process of unfolding an electronic device from a folded state according to one embodiment.

[0042] Referring to FIG. 3, in one embodiment, in a second state (e.g., a folded state) of the electronic device (100) illustrated in the left drawing of FIG. 3, the first magnetic module (150) and the second magnetic module (e.g., the second magnetic module (160) of FIG. 2) may be at least partially overlapped. For example, in the second state, the first magnetic module (150) and the second magnetic module (160) may at least partially overlap each other along the z-axis and exert an attractive force on each other. From the second state, the attractive force exerted between the first magnetic module (150) and the second magnetic module (160) may be reduced, and as the first housing (110) or the second housing (120) rotates around the folding axis (F), the electronic device (100) may change to the first state (e.g., an unfolded state) through a third state (e.g., an intermediate state). In the third state of the electronic device (100) illustrated in the right drawing of FIG. 3, the first housing (110) and the second housing (120) may rotate away from each other as the first magnetic module (150) moves in a direction in which the attractive force with the second magnetic module (160) decreases. For example, the third state may be a state in which the first surface of the first housing (110) (e.g., the first surface (111) of FIG. 1A) and the third surface of the second housing (120) (e.g., the third surface (121) of FIG. 1A) form a constant angle with each other (e.g., an angle greater than 0 degrees and less than 180 degrees).

[0043] FIG. 4 is a drawing showing an example of the shape of a first magnetic module and a second magnetic module according to one embodiment.

[0044] Figure 5 is a drawing showing the first magnetic module of Figure 4 viewed from a different angle.

[0045] FIG. 6 is an exploded perspective view of a first magnetic module of an electronic device according to one embodiment.

[0046] Referring to FIGS. 4 to 6, in one embodiment, the first magnetic module (150) may include a first magnetic housing (151), a wire housing (152), a driving unit (153), a wire (154), a power supply unit (155), a first elastic member (156), and a fastening member (157). The second magnetic module (160) may include a second magnetic housing (161).

[0047] The wire (154) may be elongated in a first direction (e.g., in the y-axis direction). For example, the wire (154) may include two parts that are elongated in the first direction (e.g., in the y-axis direction) and a part that extends in a direction perpendicular to the first direction (e.g., in the x-axis direction) and connects the two parts. At least a portion of the wire (154) may be formed parallel to a folding axis (e.g., the folding axis (F) of FIG. 1A). At least a portion of the wire (154) may be accommodated in a wire housing (152). An end of the wire (154) that is not accommodated in the wire housing (152) may be coupled to a driving unit (153), and an opposite end (e.g., a part extending in the x-axis direction) may be coupled to a wire fixing unit (152a) of the wire housing (152). The wire (154) may be formed from a metal material. For example, the wire (154) can be formed from a shape memory alloy (e.g., SMA). For example, the wire (154) can be formed from nitinol (e.g., nickel-titanium alloy). When current is supplied to the wire (154), its temperature increases and its length can change (e.g., shrink). For example, when the wire (154) reaches a certain temperature (e.g., 90 degrees Celsius), a certain percentage (e.g., 3% to 5%) of shrinkage can occur. A component (e.g., wire housing (152) and / or first magnetic housing (151)) connected to the wire (154) can move in the longitudinal direction (e.g., y-axis direction) of the wire (154) due to a tensile force (e.g., a compressive force of 5 N or more) generated when the wire (154) shrinks. In one embodiment, the diameter of the wire (154) (e.g., the width of the cross-section cut along the x-axis) may be related to the shrinkage time or recovery time of the wire (154), and may be formed to have a diameter that can implement an appropriate shrinkage time or recovery time considering the usability of the user. For example, the diameter of the wire (154) may be formed to be several hundred micrometers (e.g., 150 micrometers).

[0048] The wire housing (152) may be elongated in a first direction (e.g., in the y-axis direction). For example, the wire housing (152) may have a first direction length that is smaller than the first direction length of the wire (154) so ​​as to accommodate at least a portion of the wire (154) (e.g., a portion excluding both ends of the wire (154). A step (e.g., a groove or a recess) that can accommodate at least a portion of the wire (154) may be formed in the wire housing (152). The wire housing (152) may include a wire fixing portion (152a) that is coupled to an opposite end (e.g., an end in the -y-axis direction) of the wire (154) that is coupled to the driving portion (153) of the wire (154). For example, the wire fixing portion (152a) may be a portion that is formed smaller so as to accommodate only a portion adjacent to the other end of the wire (154) when the wire housing (152) is formed of two separate parts. For example, the wire fixing portion (152a) may be formed in various shapes so as to be interlocked with (or coupled with) the wire (154). In one embodiment, the wire housing (152) may be formed of a composite material. For example, the wire housing (152) may be formed of a fiber-reinforced plastic (e.g., GFRP, glass fiber reinforced plastic). In one embodiment, the wire housing (152) may be integrally formed by being coupled to the first magnetic housing (151).

[0049] The first magnetic housing (151) may be arranged on top of the wire housing (152) (e.g., in the z-axis direction). For example, one end (e.g., the end in the y-axis direction) of the first magnetic housing (151) may be arranged to be aligned with one end (e.g., the end in the y-axis direction) of the wire housing (152). One side (e.g., the side facing the -z-axis) of the first magnetic housing (151) may be combined with the wire housing (152) to form one housing. The first magnetic housing (151) may be elongated in the first direction (e.g., the y-axis direction) and may include a portion that accommodates at least one magnetic body (e.g., a magnet). For example, the first magnetic housing (151) may be formed to accommodate magnetic bodies arranged in the first direction. For example, the first magnetic body housing (151) may include a portion that accommodates first-first magnetic bodies (151a) (e.g., upper magnetic bodies) and first-second magnetic bodies (151b) (e.g., lower magnetic bodies) composed of a plurality of magnets together. For example, the first magnetic body housing (151) may be formed as a single housing (e.g., packaging) that accommodates the first-first magnetic bodies (151a) and the first-second magnetic bodies (151b). Since the first magnetic body housing (151) is formed as a single housing and moved, a change in the magnetic force applied between the first magnetic module (150) and the second magnetic module (160) may be more clearly observed compared to a case where the housings that accommodate the first-first magnetic bodies (151a) or the first-second magnetic bodies (151b) are formed separately.

[0050] A portion of the first magnetic housing (151) excluding a portion that accommodates at least one magnetic body may be connected to the driving unit (153). For example, the first magnetic housing (151) may be physically connected to the driving unit (153) through a fastening member (157). In one embodiment, the first magnetic housing (151) may be formed of a composite material. For example, the first magnetic housing (151) may be formed of a fiber-reinforced plastic (e.g., GFRP). The first magnetic housing (151) may be movable within the first housing (e.g., the first housing (110) of FIG. 1A). For example, the first magnetic housing (151) may be moved in a direction such that it is aligned so as to exert an attractive force on the second magnetic housing (161), or may be moved in a direction such that it is at least partially spaced from the second magnetic housing (161) so as to exert a repulsive force on the second magnetic housing.

[0051] The driving unit (153) may be arranged so that at least a portion thereof is positioned above the first magnetic housing (151) (e.g., in the z-axis direction). For example, the driving unit (153) may be arranged so that at least a portion thereof is aligned with the first magnetic housing (151) along the z-axis. The driving unit (153) may be extended in a first direction (e.g., in the y-axis direction). The length of the driving unit (153) in the first direction may be formed to be longer than the length of a portion in the first direction excluding a portion that accommodates magnetic bodies of the first magnetic housing (151). The driving unit (153) may be connected to the first magnetic housing (151) by a fastening member (157). For example, the driving unit (153) may include at least one connection point (e.g., a fastening point) connected to the first magnetic housing (151). In one embodiment, the driving unit (153) may be formed of a composite material. For example, the driving member (153) may be formed of fiber-reinforced plastic (e.g., GFRP). The driving member (153) may be at least partially fastened to the first housing (e.g., the first housing (110) of FIG. 1A). For example, by at least partially fixing the driving member (153) to the first housing (110), the first magnetic housing (151) may be moved without slipping on the first housing (110).

[0052] The feeding unit (155) may be disposed on the driving unit (153) (e.g., in the z-axis direction). For example, the feeding unit (155) may be mounted on or coupled to the driving unit (153). The feeding unit (155) may be in contact with the wire (154) and may be physically and / or electrically connected to the wire (154). The current supplied to the wire (154) through the feeding unit (155) may be controlled. By controlling the current supplied to the wire (154), the contracted or relaxed state of the wire (154) may be determined, and the moving direction of the first magnetic housing (151) may be determined.

[0053] The fastening member (157) may be arranged so that the driving unit (153) and the first magnetic housing (151) are at least partially coupled. For example, the fastening member (157) may be arranged on the driving unit (153) (e.g., in the z-axis direction) and formed to penetrate at least a portion of the driving unit (153) and the first magnetic housing (151). As an example, the fastening member (157) may be formed in a screw shape. In one embodiment, the fastening member (157) may include a pair of fastening members (e.g., a first fastening member (157a) and a second fastening member (157b)).

[0054] The first elastic member (156) may be extended in a first direction (e.g., in the y-axis direction). One end (e.g., an end in the y-axis direction) of the first elastic member (156) may be coupled to the first magnetic housing (151), and the other end (e.g., an end in the -y-axis direction) may be coupled to the driving unit (153). The first elastic member (156) may be arranged parallel to a part of the driving unit (153) (e.g., parallel to the y-axis direction). For example, the first elastic member (156) may be arranged between the first fastening member (157a) and the second fastening member (157b). The first elastic member (156) may be formed in a spring shape.

[0055] The second magnetic module (160) may include at least one magnetic body. For example, the second magnetic module (160) may include a housing that accommodates a plurality of magnets. For example, the second magnetic module (160) may include a second magnetic body housing (161) that extends in a first direction (e.g., in the y-axis direction). For example, the second magnetic module (160) may include a 2-1 magnetic body housing (161a) (e.g., an upper magnetic body housing) and a 2-2 magnetic body housing (161b) (e.g., a lower magnetic body housing), each of which includes a plurality of magnets and is spaced apart from each other in the y-axis direction.

[0056] The magnetic bodies accommodated in the first magnetic body housing (151) and the magnetic bodies accommodated in the second magnetic body housing (161) may be configured so that the magnetic force (e.g., attractive force) acting between the first magnetic module (150) and the second magnetic module (160) is maximized. For example, the magnetic bodies accommodated in the first-first magnetic body (151a), the first-second magnetic bodies (151b), the second-first magnetic body housing (161a), and the second-second magnetic body housing (161b) may be arranged in a Halbach arrangement.

[0057] An unfolding operation (e.g., an operation of changing from a second state to a first state) of an electronic device (e.g., an electronic device (100) of FIG. 1A) may be initiated by movement of a first magnetic housing (151) in a direction in which an attractive force with respect to a second magnetic housing (161) decreases. For example, the first magnetic housing (151) may be moved in a first direction (e.g., a y-axis direction) within the first housing (e.g., the first housing (110) of FIG. 1A). A folding operation (e.g., an operation of changing from a first state to a second state) of an electronic device (100) may be completed by movement of a first magnetic housing (151) in a direction in which an attractive force with respect to a second magnetic housing (161) increases (e.g., a -y-axis direction).

[0058] In one embodiment, the first magnetic module (150) may be formed in a form in which the above-described configurations are stacked in one direction (e.g., the z-axis direction). For example, along the z-axis, a first magnetic housing (151) may be disposed on a wire housing (152) that accommodates a wire (154), and a driving unit (153) may be disposed on the first magnetic housing (151). A power supply unit (155) may be disposed on one side of the driving unit (153), and a fastening member (157) may be disposed on the other side. The first elastic member (156) may be disposed on the first magnetic housing (151), or may be disposed parallel to the driving unit (153) in the y-axis direction.

[0059] FIG. 7 is a drawing showing a part of the coupling structure of the first magnetic module according to one embodiment.

[0060] Fig. 7 is a drawing showing the joint structure of the first magnetic body housing (151) and the wire housing (152). For convenience of explanation, Fig. 7 shows only a part of the joint structure of the first magnetic body housing (151) and the wire housing (152) (e.g., the joint structure of a part of the wire housing (152) and a part of the part of the first magnetic body housing (151) excluding the part where the first and second magnetic bodies (151b) are accommodated).

[0061] Referring to FIG. 7, in one embodiment, the wire housing (152) may include an upper plate (1521) and a lower plate (1522) having a step (1523) (e.g., a groove or a recess) formed therein. The step (1523) formed in the lower plate (1522) may accommodate at least a portion of a wire (e.g., the wire (154) of FIG. 4). In one embodiment, the upper plate (1521) may be formed to have a thinner width in the z-axis direction than a width (e.g., 0.4 mm) of the lower plate (1522) in the z-axis direction. For example, the upper plate (1521) may be formed to have a thinner width (e.g., 0.05 mm) in the z-axis direction than a depth (e.g., 0.3 mm) of the step (1523) in the z-axis direction. The step (1523) may be formed to extend from one end of the lower plate (1522) in the y-axis direction to the other end, and may be formed in a shape corresponding to the number and / or shape of the wires (154). The width of the step (1523) in the z-axis direction may be formed to be larger than the diameter of the wire (e.g., the wire (154) of FIG. 4). For example, the step (1523) may be formed to have a sufficient depth to accommodate the wire (154). In one embodiment, a heat transfer material may be disposed on at least a portion of the wire housing (152) that accommodates the wire (154). For example, a heat transfer material may be disposed on the step (1523) formed in the lower plate (1522), and when current is supplied to the wire (154) or when the supply of current is cut off, the speed of heating or cooling of the wire (154) may be increased. By arranging the above heat transfer material, the unfolding or folding operation of the electronic device (e.g., the electronic device (100) of FIG. 1A) can be performed quickly.

[0062] In one embodiment, the first magnetic housing (151) and the wire housing (152) may be formed separately and then coupled. For example, the first magnetic housing (151), the upper plate (1521), and the lower plate (1522) may be formed separately. The first magnetic housing (151), the upper plate (1521), and the lower plate (1522) may be coupled to each other by thermal compression while being aligned in one direction (e.g., in the z-axis direction). For example, a single housing (e.g., the form illustrated on the right side of FIG. 7) may be formed by thermal compression while the upper plate (1521) and the first magnetic housing (151) are sequentially aligned above the lower plate (1522) (e.g., in the z-axis direction). Alternatively, in one embodiment, the lower plate (1522), the upper plate (1521), and the first magnetic housing (151) may be coupled with a wire (154) accommodated in a step (1523) of the lower plate (1522). In one embodiment, the contents disclosed throughout this document regarding movement (or driving) of the first magnetic housing (151) may be understood as movement (or driving) of an integrated housing in which the first magnetic housing (151) and the wire housing (152) are coupled.

[0063] The first magnetic housing (151) may include a region that at least partially overlaps with a driving unit (e.g., a driving unit (153) of FIG. 4) in the z-axis direction. For example, the first magnetic housing (151) may include portions (e.g., 1512, 1514) that are connected to the driving unit (153) via a fastening member (e.g., a fastening member (157) of FIG. 4). Between the portions (1512, 1514) of the first magnetic housing (151) that are connected to the driving unit (153), a recess (1513) having a fine shape in the -z-axis direction may be formed so that a first elastic member (e.g., a first elastic member (156) of FIG. 4) can be seated therein. For example, on the upper surface (e.g., the surface facing the z-axis direction) of the first magnetic housing (151), a first part (1511) for accommodating the first-first magnetic bodies (151a) in the y-axis direction, a second part (1512) connected to the driving unit (153), the recess (1513), and a third part (1514) connected to the driving unit (153) may be sequentially formed.

[0064] FIG. 8 is a drawing showing another part of the coupling structure of the first magnetic module according to one embodiment.

[0065] Fig. 8 is a drawing showing the joint structure of the first magnetic housing (151), the driving unit (153), the wire (154), and the power supply unit (155). For convenience of explanation, Fig. 8 omits the illustration of a part of the first magnetic housing (151) and a part of the wire housing (152) located in an area not coupled with the driving unit (153). Reference numerals in Fig. 8 <801> is a form of the above bonding structure viewed obliquely in the z-axis direction, and reference number <802> is a form of the above bonding structure viewed obliquely in the -z-axis direction.

[0066] Referring to FIG. 8, in one embodiment, the driving unit (153) may include a first mounting portion (153a) and a second mounting portion (153b) on which a pair of fastening members (157a, 157b) are mounted, a fixing portion (153c) fixed to a first housing (e.g., the first housing (110) of FIG. 1a), a receiving portion (153d) surrounding at least a portion of the first elastic member (156), and a third mounting portion (153e) on which the power supply portion (155) is mounted. For example, the driving unit (153) may be formed in a form in which a second mounting portion (153b) on which a second fastening member (157b) is mounted in one direction (e.g., in the y-axis direction), a receiving portion (153d) surrounding a first elastic member (156), a first mounting portion (153a) on which a first fastening member (157a) is mounted, a fixing portion (153c) fixed to the first housing (110), and a third mounting portion (153e) on which a power supply unit (155) is mounted are formed at a step angle from each other (e.g., with different widths in the z-axis direction).

[0067] The first fastening member (157a) can be coupled to a third portion (e.g., the third portion (1514) of FIG. 7) of the first magnetic housing (151) through an opening (1534) formed across the receiving portion (153d) of the driving unit (153) and the first mounting portion (153a). The second fastening member (157b) can be coupled to a second portion (e.g., the second portion (1512) of FIG. 7) of the first magnetic housing (151) through an opening (1532) formed in the second mounting portion (153b) of the driving unit (153). The power supply portion (155) can be coupled to the third mounting portion (153e) of the driving unit (153). The power supply unit (155) can be electrically connected to the wire (154) by being coupled through an opening formed at the lower end (e.g., one end in the -z-axis direction) of the third mounting unit (153e). In one embodiment, at least a portion of the driving unit (153) can be fixed to the first housing (110). For example, a hole (1531) can be formed in the fixing unit (153c) of the driving unit (153). A fixing member (not shown) coupled to the first housing (110) can be arranged in the hole (1531) formed in the fixing unit (153c) of the driving unit (153). The driving unit (153) and the first housing (110) can be fixed to each other through the fixing member, and relative movement of the first magnetic housing (151) with respect to the first housing (110) can be implemented.

[0068] In one embodiment, the first elastic member (156) may have one end in the y-axis direction coupled to the first magnetic housing (151), and the other end in the -y-axis direction coupled to the driving unit (153). The one end of the first elastic member (156) may be coupled to a third portion (e.g., the third portion (1514) of FIG. 7) formed at one end in the y-axis direction of the first magnetic housing (151). For example, the third portion (1514) of the first magnetic housing (151) may include a portion (1515) formed to be engaged with (or coupled to) the first elastic member (156). The other end of the first elastic member (156) may be coupled to an end (1533) in the -y-axis direction of the lower end (e.g., one end in the -z-axis direction) of the receiving portion (153d) of the driving unit (153). The first elastic member (156) may be placed in a recess (e.g., recess (1513) of FIG. 7) formed in the first magnetic housing (151). In one example, at least a portion of the first elastic member (156) may be accommodated within an opening formed in the driving unit (153) (e.g., an opening (1534) formed in the receiving portion (153d) of the driving unit (153) and the first mounting portion (153a)).

[0069] The wire (154) may be disposed, at least in part, between the first magnetic housing (151) and the wire housing (152). One end of the wire (154) facing the feeding portion (155) (e.g., the end facing the y-axis) may be coupled to the feeding portion (155). The wire (154) may be electrically connected to the feeding portion (155) by being coupled to a second elastic member (158) disposed at the lower end of the feeding portion (155) (e.g., the -z-axis). The other end of the wire (154) (e.g., the end facing the -y-axis) may be coupled to a wire fixing portion of the wire housing (152) (e.g., the wire fixing portion (152a) of FIG. 6).

[0070] FIG. 9 is a drawing showing a wire relaxation state of a first magnetic module including a wire according to one embodiment.

[0071] Reference number of Fig. 9 <901> The figure shows the form of a first magnetic module (e.g., the first magnetic module (150) of FIG. 4) in a state in which the length of the wire (154) (e.g., the length in the y-axis direction) is not contracted. In this state, an attractive force is applied between the first magnetic module (150) and the second magnetic module (e.g., the second magnetic module (160) of FIG. 4) so ​​that a second state (e.g., a folded state) of the electronic device (e.g., the electronic device (100) of FIG. 1A) can be maintained. Hereinafter, a state in which the length of the wire (154) is not contracted (e.g., a state in which the length of the wire (154) is restored, or a state in which no current flows through the wire (154)) is referred to as a relaxed state (or a first state of the wire (154). Reference numeral in FIG. 9 <902> represents the shape of the first magnetic module (150) in a relaxed state as viewed from the -z axis. In one example, the relaxed state of the wire (154) may occur in both the first state (e.g., unfolded state) and the second state (e.g., folded state) of the electronic device (100). For example, the wire (154) may always be maintained in a relaxed state except for the start point of the unfolding operation of the electronic device (100) (e.g., from the point at which current is supplied to the wire (154) to the point at which current is cut off).

[0072] Referring to FIGS. 1A to 9, in one embodiment, a length (e.g., a length in the y-axis direction) of a wire (e.g., a wire (154) of FIG. 6) in a relaxed state may be formed as a first length (L1). In the relaxed state, one end (e.g., an end in the -y-axis direction) of the driving unit (153) may be spaced apart from a first portion (1511) that accommodates magnetic bodies of the first magnetic body housing (151) by a first distance (D1). The first fastening member (157a) may be mounted on a portion of the first mounting portion (e.g., the first mounting portion (153a) of FIG. 8) of the driving unit (153) adjacent to the -y-axis. The second fastening member (157b) may be mounted on a portion of the second mounting portion (e.g., the second mounting portion (153b) of FIG. 8) of the driving unit (153) adjacent to the -y-axis. For example, the second fastening member (157b) may be brought into contact with one end of the -y-axis of the opening (1532) formed in the second mounting member (153b) of the driving member (153). The first elastic member (156) may be maintained in a relaxed state (e.g., an undeformed state).

[0073] In one embodiment, the feed unit (155) may include a second elastic member (158) coupled with a wire (154) and a substrate (159) on which the second elastic member (158) is disposed. One end (e.g., an end in the y-axis direction) of the wire (154) may be coupled with the second elastic member (158). For example, the wire (154) may include two portions (1541, 1542) extending parallel to the y-axis and a portion (1543) extending parallel to the x-axis to connect the two portions (1541, 1542). For example, the two portions (1541, 1542) of the wire (154) may be coupled to two separate portions (1581, 1582) of the second elastic member (158), respectively. The other end (1543) of the wire (154) (e.g., the end in the -y-axis direction) can be coupled to a wire fixing portion (152a) formed parallel to the wire housing (152) in the y-axis direction. For example, the other end (1543) of the wire (154) can be engaged with a hooking portion (152b) formed with a width in the x-axis direction that is smaller than the width in the x-axis direction of the wire (154) of the wire fixing portion (152a).

[0074] FIG. 10 is a drawing showing a wire shrinkage state of a first magnetic module including a wire according to one embodiment.

[0075] Reference number of Fig. 10 <1001> The figure shows the form of a first magnetic module (e.g., the first magnetic module (150) of FIG. 4) in a state in which the length of the wire (154) (e.g., the length in the y-axis direction) is contracted. In this state, the attractive force acting between the first magnetic module (150) and the second magnetic module (e.g., the second magnetic module (160) of FIG. 4) is reduced, so that a first state (e.g., an unfolded state) of the electronic device (e.g., the electronic device (100) of FIG. 1A) can be induced. Hereinafter, the state in which the length of the wire (154) is contracted (e.g., a state in which current is supplied to the wire (154)) is referred to as a contracted state (or a second state of the wire (154). Reference numerals in FIG. 10 <1002> represents the shape of the first magnetic module (150) in a contracted state as viewed from the -z axis. In one example, the contracted state of the wire (154) may occur at the start of the unfolding operation of the electronic device (100) (e.g., from the point at which current is supplied to the wire (154) to the point at which current is cut off).

[0076] With reference to FIGS. 1A to 10, in one embodiment, the length of the wire (154) may change during an unfolding operation of the electronic device (100) (e.g., an operation of unfolding the electronic device (100) from a second state to a first state). For example, a current may be applied from the substrate (159) of the power supply unit (155) to the shape memory alloy included in the wire (154), thereby causing the length of the wire (154) (e.g., the length in the y-axis direction) to contract. For example, the length of the wire (154) in the y-axis direction may contract to a second length (L2) that is smaller than a first length (e.g., the first length (L1) of FIG. 9). In one embodiment, the lengths of the first wire (1541) and the second wire (1542) coupled to the second elastic member (158) electrically connected to the substrate (159) may contract in the y-axis direction. As the first wire (1541) and the second wire (1542) contract, each portion (1581, 1582) of the second elastic member (158) coupled to the first wire (1541) and the second wire (1542) can be formed to deform, and details thereof will be described later in FIG. 11 and below.

[0077] As the length of the wire (154) shrinks, the first magnetic housing (151) coupled to the other end (1543) of the wire (154) can move within the first housing (e.g., the first housing (110) of FIG. 1A). For example, the first magnetic housing (151) can move in a direction in which the attractive force with respect to the second magnetic housing (e.g., the second magnetic housing (161) of FIG. 4) decreases. For example, the first magnetic housing (151) can increase the portion that overlaps the driving unit (153) fixed to the first housing (110) in the z-axis direction.

[0078] In one embodiment, one end (e.g., the end in the -y-axis direction) of the driving member (153) may be spaced apart from a first portion (1511) that accommodates the magnetic bodies of the first magnetic body housing (151) by a second distance (D2). For example, as the first magnetic body housing (151) moves in the first direction (e.g., the y-axis direction), the second distance (D2) may be reduced compared to the first distance (e.g., the first distance (D1) of FIG. 9) of the first magnetic module (150) in the second state (e.g., the folded state). The first coupling member (157a) and the second coupling member (157b) may move in the y-axis direction within the driving member (153). For example, the first coupling member (157a) may be positioned adjacent to one end in the y-axis direction of the first mounting portion (e.g., the first mounting portion (153a) of FIG. 8) of the driving unit (153). As an example, the first coupling member (157a) may be positioned adjacent to one end in the y-axis direction of the receiving portion (e.g., the receiving portion (153d) of FIG. 8) of the driving unit (153) and an opening (e.g., 1534 of FIG. 8) formed in the first mounting portion (153a). For example, the second coupling member (157b) may be positioned adjacent to one end in the y-axis direction of the second mounting portion (e.g., the second mounting portion (153b) of FIG. 8) of the driving unit (153). For example, the second coupling member (157b) may be positioned adjacent to one end of the y-axis direction of an opening (e.g., 1532 in FIG. 8) formed in the second mounting portion (153b) of the driving portion (153).

[0079] The first elastic member (156) may be formed to exert an elastic force (e.g., an elastic force in the -y-axis direction) on the wire (154) in a contracted state. For example, the first elastic member (156) may be formed to be elastically deformed (e.g., tensile) when the wire (154) contracts. For example, the first elastic member (156) may have one end (e.g., an end in the y-axis direction) coupled to the first magnetic housing (151), and the other end (e.g., an end in the -y-axis direction) coupled to the driving unit (153). The one end of the first elastic member (156) may be pulled in the first direction in response to movement of the first magnetic housing (151) in the first direction (e.g., the y-axis direction). The first elastic member (156) may be tensioned in the first direction in proportion to the degree of contraction of the length (e.g., the length in the y-axis direction) of the wire (154). When the contraction of the wire (154) is completed (e.g., when the current supply to the wire (154) is cut off), the first elastic member (156) can be stretched to the maximum in the first direction. The one end of the stretched first elastic member (156) can be stretched in a second direction (e.g., in the -y-axis direction) opposite to the first direction. The first magnetic housing (151) can be moved in the second direction together with the one end of the first elastic member (156) by the elastic force of the first elastic member (156) (e.g., the elastic force in the -y-axis direction). At least a part of the wire (154) (e.g., the other end (1543) coupled to the hooking portion (152b) of the wire fixing portion (152a) of the wire (154)) can be extended in length according to the movement of the first magnetic housing (151) in the second direction. For example, after the first elastic member (156) is completely restored, the length of the wire (154) in the y-axis direction may be substantially the same as the length of the wire (154) in the y-axis direction in the contracted state (e.g., the first length (L1) of FIG. 9).

[0080] As described above, the first elastic member (156) can be formed so that the operation of the first magnetic module (150) can be repeatedly performed. By using the restoring force of the first elastic member (156), the movement of the first magnetic housing (151) in the first direction and the second direction can be repeatedly (or alternately) performed. By using the restoring force of the first elastic member (156), the contracted state and the relaxed state of the wire (154) can be repeatedly (or alternately) implemented. By the repetitive operation of the first magnetic module (150), the unfolding operation (e.g., the operation of unfolding from the second state to the first state) and the folding operation (e.g., the operation of folding from the first state to the second state) of the electronic device (100) can be repeatedly (or alternately) implemented.

[0081] For example, in a second state (e.g., a folded state) of the electronic device (100), the wire (154) and the first elastic member (156) may be maintained in their original, undeformed forms. When current is applied to the wire (154) through the power supply unit (155), the wire (154) may contract, and the first magnetic housing (151) coupled to at least a portion of the wire (154) may move in a first direction (e.g., a y-axis direction). As the first magnetic housing (151) moves in the first direction, the attractive force acting between the first magnetic module (150) and the second magnetic module (160) may be reduced, and the electronic device (100) may gradually unfold to the first state (e.g., an unfolded state) through a third state (e.g., an intermediate state). When the supply of current applied to the wire (154) through the power supply unit (155) is cut off, the first elastic member (156) tensioned by the movement of the first magnetic housing (151) can be restored by applying an elastic force to the first magnetic housing (151) in a second direction (e.g., -y-axis direction). The first magnetic housing (151) can be moved in the second direction by the elastic force applied from the first elastic member (156), and the wire (154) can be tensioned to its original, undeformed shape. The first magnetic housing (151) can be moved in the second direction so that an attractive force can be applied again between the first magnetic module (150) and the second magnetic module (160). When the electronic device (100) is folded from the first state to the third state and then to the second state, the second state of the electronic device (100) can be maintained by the attractive force acting between the first magnetic module (150) and the second magnetic module (160). The wire (154) and the first elastic member (156) can be maintained in a form substantially identical to their original form even after the above-described series of operations occur.

[0082] In one embodiment, the supply and cut-off of current to the wire (154) may occur when a specific user action is input to the electronic device (100). For example, the supply of current to the wire (154) may be controlled when a user action corresponding to an unfolding action or a folding action of the electronic device (100) is input through a sensor of the electronic device (100) (e.g., a fingerprint sensor). For example, the user action that induces an unfolding action of the electronic device (100) may be an action of contacting a part of the user's body (e.g., a finger) with a first side member (e.g., the first side member (113) of FIG. 1A) or a second side member (e.g., the second side member (123) of FIG. 1A) of the electronic device (100) and applying a force greater than a certain level. In one example, a processor included in the electronic device (100) (e.g., at least one processor (1910) of FIG. 21) may be configured to supply current to the wire (154) through the power supply (155) according to the operation recognized from the sensor.

[0083] FIG. 11 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0084] Reference number of Fig. 11 <1101> The figure shows a part of the shape that is coupled to the power supply part (155) of the wire (154). The illustration of the remaining part that is coupled to the wire housing (e.g., wire housing (152) of FIG. 4) or the first magnetic housing (e.g., first magnetic housing (151) of FIG. 4) of the wire (154) is omitted. Reference number <1102> It shows the shape of a part of the wire (154) connected to the power supply part (155) when viewed from a different angle (e.g., in the -x-axis direction).

[0085] Referring to FIG. 11, in one embodiment, the power supply unit (155) may include a substrate (159) disposed on a driving unit (e.g., the driving unit (153) of FIG. 4) and a second elastic member (158) disposed on at least a portion of the substrate (159) and connected to a wire (154). The substrate (159) may be electrically connected to a printed circuit board disposed inside an electronic device (e.g., the electronic device (100) of FIG. 1A). The second elastic member (158) may be in contact with an electrode formed on the substrate (159). The second elastic member (158) may be formed of a conductive material, and an electrical path may be formed from the printed circuit board to the substrate (159), the second elastic member (158), and the wire (154). Through the second elastic member (158), current may be supplied to the wire (154), thereby causing shrinkage of the wire (154).

[0086] The second elastic member (158) may include a portion coupled to the wire (154) and a portion coupled to the substrate (159). For example, the second elastic member (158) may include a second-first elastic member (1581) and a second-second elastic member (1582) coupled to a first wire (1541) and a second wire (1542), which extend parallel to the y-axis of the wire (154), respectively. For example, the second-first elastic member (1581) may include a first portion (1581a) that contacts the substrate (159) and a second portion (e.g., a first extension portion (1581b) and a second extension portion (1581c)) coupled to the first wire (1541). For example, the second-first elastic member (1581) may have a first portion (1581a) disposed on the substrate (159) (e.g., in the z-axis direction) and may be electrically connected to the wire (154) by being connected to an electrode of the substrate (159). The second elastic member (158) may form at least one connecting portion with the wire (154). For example, the second-first elastic member (1581) may include a second portion connected to the first wire (1541). The second portion may include, for example, a first extension portion (1581b) and a second extension portion (1581c) connected to different portions of the first wire (1541).

[0087] In one embodiment, the second elastic member (158) may be formed of a metal material or a plastic material. For example, the second elastic member (158) may be formed of stainless steel. In one example, the second elastic member (158) may be formed of gold-plated stainless steel. By gold-plating the second elastic member (158), the contact resistance between the second elastic member (158) and the wire (154) may be reduced, and galvanic corrosion may be prevented. In addition, the plating of the second elastic member (158) may facilitate soldering of the second elastic member (158) and the substrate (159).

[0088] FIG. 12 is a drawing showing an example of a shape of a substrate of a power supply unit viewed from various angles according to one embodiment.

[0089] Fig. 12 shows the shape of the substrate (159) of the power supply unit (e.g., the power supply unit (155) of Fig. 4). Reference numbers of Fig. 12 <1201> The silver substrate (159) is shown in the form of a view obliquely to the -z axis. Reference number <1202> It represents the shape of the substrate (159) viewed from the -x axis, and the reference number <1203> The silver substrate (159) is shown as viewed from the z-axis.

[0090] Referring to FIG. 12, in one embodiment, the power supply unit (155) may include a substrate (159) electrically connected to a printed circuit board of an electronic device (e.g., the electronic device (100) of FIG. 1A). The substrate (159) may include at least one electrode electrically connected to the printed circuit board. For example, the substrate (159) may include first electrodes (1591, 1592) connected to the printed circuit board. The substrate (159) may include at least one electrode electrically connected to a second elastic member (e.g., the second elastic member (158) of FIG. 11). For example, the substrate (159) may include second electrodes (1593, 1594) that are in contact with the second-first elastic member (e.g., the second-first elastic member (1581) of FIG. 11) and the second-second elastic member (e.g., the second-second elastic member (1582) of FIG. 11), respectively.

[0091] For example, the substrate (159) may include first electrodes (1591, 1592) that supply current to the substrate (159) from another electrical configuration (e.g., a printed circuit board) within the electronic device (100) and second electrodes (1593, 1594) that supply current to a wire (e.g., a wire (154) of FIG. 4) via a second elastic member (158). The first electrodes (1591, 1592) and the second electrodes (1593, 1594) may be spaced apart from each other. For example, the first electrodes (1591, 1592) may be spaced apart from the second electrodes (1593, 1594) in the y-axis direction. Each of the first electrodes (1591, 1592) may be spaced apart from each other in the x-axis direction, and each of the second electrodes (1593, 1594) may be spaced apart from each other in the x-axis direction. In one embodiment, the first electrodes (1591, 1592) and the second electrodes (1593, 1594) may be formed with different poles. For example, when the first electrodes (1591, 1592) are formed as a + pole (e.g., an anode), the second electrodes (1593, 1594) may be formed as a - pole (e.g., a cathode).

[0092] In one embodiment, the second electrodes (1593, 1594) may be formed to extend from a surface contacting the driving unit (153) of the substrate (159) (e.g., a surface facing the -z-axis) to a surface opposite to the surface (e.g., a surface facing the z-axis). For example, at least a portion of the second electrodes (1593, 1594) may protrude onto the surface facing the z-axis of the substrate (159), or may be formed parallel to the surface. The portion of the second electrodes (1593, 1594) exposed toward the z-axis (e.g., visible on the substrate (159)) may be in contact with, or at least partially bonded to, a first portion of the second elastic member (158) (e.g., the first portion (1581a) of FIG. 11). An electrical path connecting the printed circuit board, electrodes (1591, 1592, 1593, 1594), the second elastic member (158), and the wire (154) can be formed through physical connection and / or electrical connection of the substrate (159) and the second elastic member (158) in the first portion (1581a).

[0093] An opening to which a second elastic member (158) can be coupled may be formed in the substrate (159). For example, a first opening (1595) may be formed in the -y-axis direction and a second opening (1596) may be formed in the y-axis direction based on the second electrodes (1593, 1594) in the substrate (1599). The first opening (1595) and the second opening (1596) may be formed to be coupled with at least a portion of the second elastic member (158). For example, the first opening (1595) may be formed to have a y-axis width that is substantially the same as the y-axis width of the first extension portion of the 2-1 elastic member (1581) (e.g., the first extension portion (1581b) of FIG. 11). The second opening (1596) may be formed to have a y-axis width that is substantially the same as the y-axis width of the second extension portion of the 2-1 elastic member (1581) (e.g., the second extension portion (1581c) of FIG. 11). The first opening (1595) and / or the second opening (1596) may be coupled with the 2-1 elastic member (1581) and the 2-2 elastic member (e.g., the 2-2 elastic member (1582) of FIG. 11).

[0094] The substrate (159) may include a region (A3) for appropriately positioning the substrate (159) during the process of combining the components of the first magnetic module (e.g., the first magnetic module (150) of FIG. 4). For example, the region (A3) may correspond to a region that is adsorbed by an external tool so that the substrate (159) can come into contact with a driving unit (e.g., the driving unit (153) of FIG. 4) or a second elastic member (158). The region (A3) may be, for example, any region positioned in the -y-axis direction relative to the first opening (1595) on the substrate (159). The region (A3) may have, for example, a circular shape with a diameter of 0.5 mm.

[0095] FIG. 13 is a drawing showing an example of a shape of a second elastic member according to one embodiment.

[0096] Referring to FIGS. 11 to 13, in one embodiment, a second elastic member (e.g., a second elastic member (158) of FIG. 11) may include a first portion (e.g., a portion extending parallel to the y-axis) that contacts an electrode (e.g., second electrodes (1593, 1594) of FIG. 12) of a substrate (e.g., a substrate (159) of FIG. 12) and a second portion extending from the first portion and coupled to a wire (e.g., a wire (154) of FIG. 4). For example, the second-first elastic member (1581) may include a first portion (1581a) that contacts a second electrode (1593) of a substrate (159) and a second portion (e.g., a first extension portion (1581b), a second extension portion (1581c)) that extends from the first portion (1581a) and is coupled to a first wire (e.g., the first wire (1541) of FIG. 11). One side (1581d) of the first portion (1581a) facing the -z axis may be in contact with the second electrode (1593) of the substrate (159), and the second-first elastic member (1581) and the substrate (159) may be electrically connected. For example, an adhesive material (e.g., a conductive adhesive or a conductive epoxy) may be applied to the side (1581d) and / or the second electrode (1593). Alternatively, in one embodiment, the first surface (1581d) and the second electrode (1593) may be soldered to electrically connect the second-1 elastic member (1581) and the substrate (159).

[0097] The second-first elastic member (1581) may include a first extension portion (1581b) extending perpendicularly (e.g., in the -z-axis direction) to the first portion (1581a) from one end (e.g., an end in the -y-axis direction) of the first portion (1581a), and a second extension portion (1581c) extending perpendicularly (e.g., in the -z-axis direction) to the first portion (1581a) from the other end (e.g., an end in the y-axis direction) of the first portion (1581a). The first extension portion (1581b) may be extended so as to pass through a first opening (e.g., a first opening (1595) of FIG. 12) of the substrate (159). The second extension portion (1581c) may be extended so as to pass through a second opening (e.g., a second opening (1596) of FIG. 12) of the substrate (159).

[0098] The first extension portion (1581b) and the second extension portion (1581c) may be formed with recesses (1581b_3, 1581c_3) through which the wire (154) passes. For example, the first extension portion (1581b) may include a first-first extension portion (1581b_1) and a first-second extension portion (1581b_2) extending in the -z-axis direction, and a first recess (1581b_3) formed between the first-first extension portion (1581b_1) and the first-second extension portion (1581b_2). For example, the second extension portion (1581c) may include a second-first extension portion (1581c_1) and a second-second extension portion (1581c_2) extending in the -z-axis direction, and a second recess (1581c_3) formed between the second-first extension portion (1581c_1) and the second-second extension portion (1581c_2).

[0099] At least a portion of the wire (e.g., the first wire (1541) of FIG. 11) may be surrounded by a second portion (e.g., the first extension portion (1581b), the second extension portion (1581c)) of the second elastic member (158). For example, at least a portion adjacent to one end (e.g., the end in the y-axis direction) of the first wire (1541) may be surrounded by the first-first extension portion (1581b_1), the first-second extension portion (1581b_2), and the first recess (1581b_3) of the first extension portion (1581b). At least a portion between the first end of the first wire (1541) and the portion surrounded by the first extension portion (1581b) may be surrounded by the second-first extension portion (1581c_1), the second-second extension portion (1581c_2), and the second recess (1581c_3) of the second extension portion (1581c). For example, the first wire (1541) may be positioned in a space (e.g., a space in the -z-axis direction) above the first recess (1581b_3) and the second recess (1581c_3). Alternatively, for example, the first wire (1541) may be seated in the first recess (1581b_3) and the second recess (1581c_3).

[0100] In various embodiments, the second-second elastic member (e.g., the second-second elastic member (1582) of FIG. 11) may be formed in substantially the same shape as the second-first elastic member (1581). For example, the second-second elastic member (1582) may include a first portion that contacts an electrode (1594) of the substrate (159) and a second portion that extends vertically from the first portion. The second portion of the second-second elastic member (1582) may pass through an opening (1595, 1596) of the substrate (159) and may be coupled with a second wire (e.g., the second wire (1542) of FIG. 11).

[0101] Fig. 14 is a drawing showing the second elastic member of Fig. 13 viewed from various angles.

[0102] Reference number of Fig. 14 <1401> The figure shows the shape of the 2-1 elastic member (1581) as viewed from the -x axis. Reference number <1402> shows the shape of the 2-1 elastic member (1581) as viewed from the -y axis. Reference number <1403> The figure shows the shape of the 2-1 elastic member (1581) as viewed from the z-axis direction.

[0103] With reference to FIG. 14, in one embodiment, the first width (W1) in the y-axis direction of the first part (1581a) of the 2-1 elastic member (1581) may be formed to be longer than the second width (W2) in the x-axis direction. For example, the second width (W2) of the first part (1581a) may be formed to be 0.95 mm, and the first width (W1) may be formed to be 1.6 mm, which is larger than the second width (W2). The width of the first extension part (1581b) of the 2-1 elastic member (1581) in the x-axis direction may be formed to be the same as the second width (W2) of the first part (1581a) in the x-axis direction. The third width (W3) in the x-axis direction of the second extension portion (1581c) of the second-first elastic member (1581) may be formed to be the same as the width (e.g., W2) in the x-axis direction of the first extension portion (1581b). For example, the third width (W3) may be formed to be 0.95 mm. The widths in the y-axis direction of the first extension portion (1581b) and the second extension portion (1581c) may be formed to be substantially the same. For example, the fourth width (W4) in the y-axis direction of the first extension portion (1581b) and the width in the y-axis direction of the second extension portion (1581c) may be formed to be the same width (e.g., 0.3 mm). For example, the fourth width (W4) may be formed to be smaller than the first width (w1). The y-axis direction separation of the first extension portion (1581b) and the second extension portion (1581c) may be formed as a fifth width (W5) wider than the fourth width (W4). The gap (e.g., gap in the x-axis direction) between the 1-1 extension portion (1581b_1) and the 1-2 extension portion (1581b_2) of the second elastic member (1581) may be formed smaller than the x-axis direction widths of the 1-1 extension portion (1581b_1) and the 1-2 extension portion (1591b_2). For example, the sixth width (W6) between the 1-1 extension portion (1581b_1) and the 1-2 extension portion (1581b_2) may be formed as 0.15 mm.Alternatively, for example, the width in the x-axis direction of the first recess (1581b_3) of the second elastic member (1581) may be formed to be a smaller width (e.g., 0.15 mm) than the widths in the x-axis direction of the first-first extension portion (1581b_1) and the first-second extension portion (1591b_2). The seventh width (W7) in the z-axis direction of the first extension portion (1581b) may be formed to be larger than the first width (W1) in the y-axis direction of the first portion (1581a). For example, the seventh width (W7) may be formed to be 2.15 mm.

[0104] In one embodiment, the second-first elastic member (1581) may include a curved portion formed in the first portion (1581a), the first extension portion (1581b), or the second extension portion (1581c). For example, a first curved portion (1581a_1) may be formed at a boundary between the first portion (1581a) and the first extension portion (1581b) (e.g., a portion extending in the -z-axis direction from the first portion (1581a) of the first extension portion (1581b). For example, a second curved portion (1581a_2) may be formed at a boundary between the first portion (1581a) and the second extension portion (1581c) (e.g., a portion extending in the -z-axis direction from the first portion (1581a) of the second extension portion (1581c). The first portion (1581a) may include a first curved portion (1581a_1), a second curved portion (1581a_2), and a flat portion (1581a_3) formed between the first curved portion (1581a_1) and the second curved portion (1581a_2).

[0105] The second elastic member (e.g., the second elastic member (158) of FIG. 11) may include a region (A4) for appropriately arranging the second elastic member (158) during the process of joining the components of the first magnetic module (e.g., the first magnetic module (150) of FIG. 4). For example, the region (A4) may correspond to a region that is adsorbed by an external tool so that the 2-1 elastic member (1581) can come into contact with a substrate (e.g., the substrate (159) of FIG. 12). The region (A4) may be, for example, an arbitrary region (e.g., a part of the flat portion (1581a_3)) located in the first portion (1581a) of the 2-1 elastic member (1581). The region (A4) may have, for example, a circular shape having a diameter of 0.5 mm.

[0106] In one embodiment, the sixth width (W6) in the x-axis direction of the first recess (1581b_3) and the eighth width (W8) in the z-axis direction of the first-first extension portion (1581b_1) and the first-second extension portion (1581b_2) may be formed in consideration of the diameter of the wire (e.g., the first wire (1541) of FIG. 11). For example, the sixth width (W6) may be formed to be substantially equal to or slightly smaller than the diameter of the first wire (1541) in order to be firmly fixed (or fastened) to the first wire (1541). For example, the eighth width (W8) may be formed to be several times (e.g., two to three times) the diameter of the first wire (1541) so that the first wire (1541) does not come off from the first recess (1581b_3) (or from the second-first elastic member (1581)). In one example, the sixth width (W6) and the eighth width (W8) may be set to be stably fixed (or fastened) to the first wire (1541) in a contracted state in consideration of a change in diameter (e.g., a decrease in the diameter cut in the x-axis direction due to an increase in the length in the y-axis direction) when the first wire (1541) contracts.

[0107] In one embodiment, the shape and size of the first magnetic module (e.g., the first magnetic module (150) of FIG. 4) and the second magnetic module (e.g., the second magnetic module (160) of FIG. 4) may be designed to reduce the occupancy of the mounting space inside the electronic device (100) by taking into account the characteristics of the foldable electronic device (e.g., the electronic device (100) of FIG. 1A). For example, the diameter of the wire (e.g., the wire (154) of FIG. 4), the length of each part of the second elastic member (e.g., the second elastic member (158) of FIG. 11) in the x, y, and z-axis directions (e.g., the first width (W1) to the eighth width (W8) of the second-first elastic member (1581)), or the overall length of the first magnetic module (150) (e.g., the length in the y-axis direction) may be formed smaller than that of other types of electronic devices (e.g., the notebook (1990) of FIG. 21) in consideration of the overall size of the foldable electronic device (100) (e.g., the foldable type smartphone (1991-2) of FIG. 21). As an example, referring to FIG. 4, at least some of the components included in the first magnetic module (150) (e.g., the first magnetic housing (151), the wire housing (152), the driving unit (153), the wire (154), The power supply unit (155), the first elastic member (156), or the fastening member (157) can be arranged side by side along the y-axis, thereby miniaturizing the first magnetic module (150).

[0108] FIG. 15 is a drawing showing an example of a form in which a wire and an elastic member are deformed according to one embodiment.

[0109] Reference number of Fig. 15 <1501> The figure shows the combined form of the first wire (1541) and the second-first elastic member (1581) in the relaxed state of the first wire (1541). Reference number <1502> It shows the combined form of the first wire (1541) and the second-1 elastic member (1581) in the contracted state of the first wire (1541).

[0110] Referring to FIGS. 11 to 15, in one embodiment, a wire (e.g., wire (154) of FIG. 4) and a second elastic member (e.g., second elastic member (158) of FIG. 11) may be bonded to each other via an adhesive material (or adhesive material). For example, the adhesive material may be formed of a thermosetting resin (e.g., epoxy-based adhesive). As an example, a first wire (1541) may be bonded to a first extension portion (1581b) and a second extension portion (1581c) of a second-first elastic member (1581) via an adhesive material. For example, a first connection portion (P1) (or a first fixing point) may be formed from a portion positioned on (e.g., on the -z axis) a first recess (e.g., the first recess (1581b_3) of FIG. 13) of the first wire (1541), a portion of the first extension portion (1581b), and an adhesive material. For example, a second connection portion (P2) (or a second fixing point) may be formed from a portion positioned on (e.g., on the -z axis) a second recess (e.g., the second recess (1581c_3) of FIG. 13) of the first wire (1541), a portion of the second extension portion (1581c), and an adhesive material.

[0111] Alternatively, in one embodiment, the wire (154) may be seated on (e.g., in the -z-axis) the first recess (1581b_3) or the second recess (1581c_3) and coupled with the first recess (1581b_3) or the second recess (1581c_3). For example, a first coupling portion (P1) may be formed from an adhesive material applied between a portion of the wire (154) adjacent to the first recess (1581b_3), the first recess (1581b_3), and a portion of the wire (154) and the first recess (1581b_3). For example, a second joint (P2) may be formed from another portion of the wire (154) adjacent to the second recess (1581c_3), the second recess (1581c_3), and an adhesive material applied between the second recess (1581c_3) and another portion of the wire (154).

[0112] The first joint portion (P1) can be formed by applying an adhesive material between the first wire (1541) and the first extension portion (1581b) and then curing the adhesive material. The second joint portion (P2) can be formed by applying an adhesive material between the first wire (1541) and the second extension portion (1581c) and then curing the adhesive material. Even after the first joint portion (P1) and the second joint portion (P2) are formed, the cured adhesive material can be deformed or removed through heating, and an operation of re-forming the joint portion of the first wire (1541) and the second elastic member (1581) can be performed. The first wire (1541) may include a first region (1541a) from one end coupled to the first magnetic housing (e.g., the first magnetic housing (151) of FIG. 4) to the first coupling portion (P1), a second region (1541b) from the first coupling portion (P1) to the second coupling portion (P2), and a third region (1541c) from the second coupling portion (P2) to the other end opposite the one end.

[0113] Reference number <1501> With reference to , in a relaxed state where no current flows through the wire (154), the first coupling portion (P1) and the second coupling portion (P2) may be formed to be spaced apart from each other by a third distance (D3) in the y-axis direction. For example, in the relaxed state of the wire (154), one end (e.g., an end in the -z-axis direction) of the first extension portion (1581b) constituting the first coupling portion (P1) and one end (e.g., an end in the -z-axis direction) of the second extension portion (1581c) constituting the second coupling portion (P2) may be spaced apart from each other by a third distance (D3) in the y-axis direction. For example, in the relaxed state, the second region (1541b) of the first wire (1541) may be formed to be spaced apart from each other by a third distance (D3).

[0114] Reference number <1502> With reference to , in a contracted state in which current flows through the wire (154), the first coupling portion (P1) and the second coupling portion (P2) may be spaced apart by a fourth distance (D4) smaller than the third distance (D3) in the y-axis direction. For example, in the contracted state of the wire (154), one end (e.g., an end in the -z-axis direction) of the first extension portion (1581b) constituting the first coupling portion (P1) and one end (e.g., an end in the -z-axis direction) of the second extension portion (1581c) constituting the second coupling portion (P2) may be spaced apart by a fourth distance (D4) smaller than the third distance (D3) in the y-axis direction. For example, in the contracted state, the second region (1541b) of the first wire (1541) may be formed by the fourth distance (D4).

[0115] In one embodiment, the second elastic member (158) may be formed to deform in a direction corresponding to the deformation of the wire (154). For example, at least a portion of the first extension portion (1581b) and at least a portion of the second extension portion (1581c) may be deformed such that the second-first elastic member (1581) may be deformed in the same direction as the contraction direction and / or the relaxation direction of the first wire (1541). For example, in the contracted state, the lengths (e.g., the lengths in the y-axis direction) of the first region (1541a), the second region (1541b), and the third region (1541c) of the wire (1541) may be reduced. In response to the reduced second region (1541b), the first extension portion (1581b) may be deformed such that at least a portion (e.g., a portion adjacent to the first coupling portion (P1) of the first extension portion (1581b)) moves in the y-axis direction. Additionally, the second extension portion (1581c) may be deformed such that at least a portion (e.g., a portion adjacent to the second joining portion (P2) of the second extension portion (1581c)) moves in the -y-axis direction. Alternatively, for example, the first extension portion (1581b) may be deformed such that at least a portion (e.g., a portion adjacent to the first joining portion (P1) of the first extension portion (1581b)) moves in the y-axis direction in response to a length contraction of the first region (1541a) in the y-axis direction, and the second extension portion (1581c) may be deformed such that at least a portion (e.g., a portion adjacent to the second joining portion (P2) of the second extension portion (1581c)) moves in the -y-axis direction in response to a length contraction of the third region (1541c) in the -y-axis direction.

[0116] For example, the angle formed by the first extension portion (1581b) and the first portion (1581a) and the angle formed by the second extension portion (1581c) and the first portion (1581a) may be reduced in the contracted state compared to the relaxed state. For example, the first extension portion (1581b) and the first portion (1581a) may be formed to form a first angle in the relaxed state, and may be deformed to form a second angle smaller than the first angle in the contracted state. For example, a portion adjacent to the first portion (1581a) of the first extension portion (1581b) and a portion adjacent to the first portion (1581a) of the second extension portion (1581c), a portion constituting the first joining portion (P1) of the first extension portion (1581b) and a portion constituting the second joining portion (P2) of the second extension portion (1581c), can be bent so as to move along the length-reducing direction of the second region (1541b) of the first wire (1541).

[0117] In one embodiment, the first extension portion (1581b) and the second extension portion (1581c) can be deformed in response to the tensile direction of the first wire (1541) as the current supply to the first wire (1541) is cut off and the first wire (1541) is tensioned by the first elastic member (e.g., the first elastic member (156) of FIG. 4). For example, at least a portion of the first extension portion (1581b) (e.g., a portion adjacent to the first portion (1581a) of the first extension portion (1581b)) and at least a portion of the second extension portion (1581c) (e.g., a portion adjacent to the first portion (1581a) of the second extension portion (1581c)) can be bent such that the portion constituting the first coupling portion (P1) of the first extension portion (1581b) and the portion constituting the second coupling portion (P2) of the second extension portion (1581c) move away from each other. Through the bending of the first extension portion (1581b) and the second extension portion (1581c), the distance between the first coupling portion (P1) and the second coupling portion (P2) can be restored from the fourth distance (D4) to the third distance (D3).

[0118] As described above, the portions (e.g., the first coupling portion (P1) and the second coupling portion (P2)) to which the second elastic member (158) and the wire (154) are fixed can move along the contraction and relaxation directions of the wire (154), and the stress applied to the wire (154) during the contraction and relaxation process of the wire (154) can be reduced. For example, the first wire (1541) can contract and relax around the first coupling portion (P1) and the second coupling portion (P2). In this process, the first extension portion (1581b) and the second extension portion (1581c) of the 2-1 elastic member (1581) can be elastically deformed, so that excessive stress (e.g., frictional force or tensile force) may not be applied to the portions of the first wire (1541) that constitute the first coupling portion (P1) and the second coupling portion (P2). The occurrence of defects due to repetitive motions of the wire (154) (e.g., contraction of the wire (154) during an unfolding motion of the electronic device (100) of FIG. 1A and relaxation of the wire (154) during a folding motion of the electronic device (100) of FIG. 1A) can be reduced by the elastic deformation of the second elastic member (158). In addition, fatigue destruction (e.g., wire breakage) of the wire (154) can be prevented by the elastic deformation of the second elastic member (158), and the lifespan of the wire (154) and the lifespan of the first magnetic module (e.g., the first magnetic module (150) of FIG. 4) including the wire (154) can be increased.

[0119] FIG. 16 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0120] Reference number of Fig. 16 <1601> and <1602> represents a form in which a second elastic member (e.g., the second elastic member (158) of FIG. 11) of a first magnetic module (e.g., the first magnetic module (150) of FIG. 4) is deformed. For example, the second elastic member (258) of FIG. 16 may be a form in which a second extension portion (e.g., the second extension portion (1581c) of FIG. 11) and a second curved portion (e.g., the second curved portion (1581a_2) of FIG. 14) of the first portion (1581a) of the second elastic member (158) of FIG. 11 are removed.

[0121] Referring to FIG. 16, in one embodiment, the power supply unit (155) of the first magnetic module (150) may include a second elastic member (258) coupled with the substrate (159) and the wire (154). For example, the second elastic member (258) may include a second-first elastic member (2581) coupled with the first wire (1541) and a second-second elastic member (2582) coupled with the second wire (1542). For example, the second-first elastic member (2581) may include a first portion (2581a) that contacts an electrode of the substrate (159) and a second portion (2581b) that extends in the -z-axis direction from the first portion (2581a). The second portion (2581b) may be coupled with the first wire (1541). For example, at least a portion of the second portion (2581b) may be bonded to the first wire (1541) via an adhesive material (e.g., a thermosetting resin). A third bonding portion (P3) may be formed from the second portion (2581b), the first wire (1541), and the adhesive material. Centered around the third bonding portion (P3), the first wire (1541) may be divided into a first region (1541a) (or first wire) in the −y-axis direction and a second region (1541b) (or second wire) in the y-axis direction. The second-first elastic member (2581) may be elastically deformed so that the third bonding portion (P3) may move in a direction corresponding to the contraction and relaxation of the first wire (1541). For example, the second portion (2581b) may be bent so that at least a portion of the second portion (2581b) constituting the third connecting portion (P3) may move in the same direction as the contraction and relaxation directions of the first wire (1541). Through the elastic deformation of the second elastic member (258), the stress applied to the wire (154) may be minimized, and the lifespan of the wire (154) may be increased. With respect to the detailed structure and function of the second elastic member (258), the description provided for the second elastic member (158) in FIGS. 8 to 15 may be substantially identically referenced.

[0122] FIG. 17 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0123] Fig. 17 shows a form in which a wire (e.g., a wire (154) of Fig. 4) and a second elastic member (e.g., a second elastic member (258) of Fig. 16) of a first magnetic module (e.g., a first magnetic module (150) of Fig. 4) are deformed. The fixing member (358) of Fig. 17 may be formed to be substantially identical to the shape of the undeformed second elastic member (258) of Fig. 16, for example.

[0124] Referring to FIG. 17, in one embodiment, the first magnetic module (150) may include a first wire (2541) and a fixing member (358). The first wire (2541) may be bonded to at least a portion of the fixing member (358) with an adhesive material. A fourth connecting portion (P4) may be formed from the first wire (2541), the fixing member (358), and the adhesive material. The first wire (2541) may include a first region (2541a) (or first wire) in the -y-axis direction and a second region (2541b) (or second wire) in the y-axis direction with respect to the fourth connecting portion (P4).

[0125] In one embodiment, a portion adjacent to the fourth connecting portion (P4) of the first wire (2541) may be formed to be deformable in response to contraction and relaxation of the first wire (2541). For example, the first region (2541a) of the first wire (2541) may be formed in an elastically deformable shape (e.g., a spring) so as to be able to move in the same direction as the contraction and relaxation directions of the first wire (2541). In one example, by elastically deforming the first region (2541a) of the first wire (2541), the fixing member (358) may be maintained in the same shape regardless of contraction and relaxation of the first wire (2541). The stress applied to the first wire (2541) by the deformation of the first region (2541a) may be minimized, and the lifespan of the first wire (2541) may be increased. That is, due to the presence of the first region (2541a), the fixed member (358) can be formed of a material that does not undergo elastic deformation, unlike the second elastic members (158, 258) of FIGS. 11 to 16.

[0126] Alternatively, in one embodiment, the first wire (2541) may be connected to a separate elastic member that deforms in response to the contraction and relaxation of the first wire (2541). For example, an elastic member (e.g., a spring) may be disposed in the first region (2541a) of the first wire (2541), and a portion forming the fourth connecting portion (P4) of the first wire (2541) may be connected to the elastic member. The elastic member may contract and relax in the same direction as the contraction and relaxation directions of the first wire (2541). The stress applied to the first wire (2541) by the elastic member may be minimized, and the lifespan of the first wire (2541) may be increased. That is, due to the presence of the elastic member, the fixing member (358) may be formed of a material that does not elastically deform, unlike the second elastic members (158, 258) of FIGS. 11 to 16.

[0127] FIG. 18 is a drawing showing an example of a combined structure of a wire and a power supply unit according to one embodiment.

[0128] Reference number of Fig. 18 <1801> and <1802> represents a form in which a second elastic member (e.g., the second elastic member (158) of FIG. 11) of a first magnetic module (e.g., the first magnetic module (150) of FIG. 4) is deformed. For example, the second elastic member (458) of FIG. 18 may be in a form in which the first part (2581a) of the elastic member (258) of FIG. 16 is further extended to the left (e.g., in the -y-axis direction) of the second part (2581b). For example, the second elastic member (458) of FIG. 18 may be formed in a form similar to an upside-down alphabet T.

[0129] Referring to FIG. 18, in one embodiment, a feeding portion (e.g., feeding portion (155) of FIG. 4) of a first magnetic module (150) may include a second elastic member (458) coupled with a substrate (159) and a wire (e.g., wire (154) of FIG. 4). For example, the second elastic member (458) may include a first portion (4581a, 4581c) that contacts an electrode of the substrate (159) and a second portion (4581b) that extends in the -z-axis direction from the first portion (4581a, 4581c). The second portion (4581b) may be coupled with the first wire (1541). The first portion (4581a, 4581c) may include a portion (4581a) that extends to one side (e.g., in the y-axis direction) with the second portion (4581b) as the center, and a portion (4581c) that extends to the other side (e.g., in the -y-axis direction). The first portions (4581a, 4581c) may extend to both sides with the second portion (4581b) as the center, thereby coming into contact with the second electrodes (1593a, 1593c) arranged on the substrate (159), respectively. For example, the second elastic member (458) may be formed to increase the area in contact with the substrate (159), and may be stably fastened to the substrate (159).

[0130] At least a portion of the second portion (4581b) may be bonded to the first wire (1541) via an adhesive material (e.g., a thermosetting resin). A fifth connecting portion (P5) may be formed from the second portion (4581b), the first wire (1541), and the adhesive material. Centering around the fifth connecting portion (P5), the first wire (1541) may be divided into a first region (1541a) (or first wire) in the −y-axis direction and a second region (1541b) (or second wire) in the y-axis direction. The second elastic member (458) may be elastically deformed so that the fifth connecting portion (P5) may move in a direction corresponding to the contraction and relaxation of the first wire (1541). For example, the second portion (4581b) may be bent so that at least a portion of the second portion (4581b) constituting the fifth connecting portion (P5) may move in the same direction as the contraction and relaxation directions of the first wire (1541). Through the elastic deformation of the second elastic member (458), the stress applied to the wire (154) may be minimized, and the lifespan of the wire (154) may be increased. With respect to the detailed structure and function of the second elastic member (458), the description provided for the second elastic member (158) in FIGS. 8 to 15 may be substantially identically referenced.

[0131] FIG. 19 is a drawing showing an example of a form in which a first magnetic module and a second magnetic module are applied to an electronic device according to one embodiment.

[0132] FIG. 19 shows a form in which a first magnetic module (e.g., the first magnetic module (150) of FIG. 4) and a second magnetic module (e.g., the second magnetic module (160) of FIG. 4) are applied to an electronic device (200) (e.g., a laptop) that can be folded and unfolded around a folding axis (F').

[0133] Referring to FIG. 19, in one embodiment, the electronic device (200) may include a first housing (210), a second housing (220), a first magnetic module (150) disposed in the first housing (210), and a second magnetic module (160) disposed in the second housing (220). For example, the first magnetic module (150) may be disposed at an edge formed furthest from a folding axis (F') of the first housing (210). The second magnetic module (160) may be disposed at an edge formed furthest from the folding axis (F') of the second housing (220). The first magnetic module (150) and the second magnetic module (160) may be formed to exert an attractive force on each other so that the folded state of the electronic device (200) can be maintained. At least one of the first magnetic module (150) or the second magnetic module (160) may include a deformable shape memory alloy member (e.g., wire (154) of FIG. 4) so ​​that the electronic device (200) can be easily unfolded.

[0134] FIG. 20 is a drawing showing an example of a form in which a first magnetic module and a second magnetic module according to one embodiment are applied to an electronic device.

[0135] Fig. 20 shows a form in which a first magnetic module (e.g., the first magnetic module (150) of Fig. 4) and a second magnetic module (e.g., the second magnetic module (160) of Fig. 4) are applied to an electronic device (300) (e.g., a multi-foldable electronic device) that can be folded and unfolded around a plurality of folding axes (F1, F2). Reference numerals of Fig. 20 <2001> represents a second state (e.g., a fully folded state) of the electronic device (300). Reference number <2002> represents a third state (e.g., a partially folded state) of the electronic device (300). Reference number <2003> represents a first state (e.g., a partially unfolded state) of the electronic device (300).

[0136] Referring to FIG. 20, in one embodiment, the electronic device (300) may include a first housing (310) formed to be foldable about a first folding axis (F1), a second housing (320), a third housing (330) formed to be foldable about a second folding axis (F2), a first magnetic module (150), and a second magnetic module (160). For example, the electronic device (300) may be formed such that the first housing (310) and / or the third housing (330) may be folded or unfolded with respect to the second housing (320). The first magnetic module (150) and the second magnetic module (160) may each be disposed in at least one of the plurality of housings (310, 320, 330) of the electronic device (300). For example, the first magnetic module (150) may be placed in the third housing (330), and the second magnetic module (160) may be placed in the second housing (320). The folded state (or folding state) of the electronic device (300) may be maintained by the attractive force acting between the first magnetic module (150) and the second magnetic module (160). By supplying current to a wire (e.g., wire (154) of FIG. 4) included in the first magnetic module (150), the electronic device (300) may be unfolded with respect to at least one housing about a folding axis (e.g., the first folding axis (F1) or the second folding axis (F2)). For example, as the attractive force acting between the first magnetic module (150) and the second magnetic module (160) decreases, the electronic device (300) can be unfolded by the restoring force (e.g., unfolding force) of the display (e.g., flexible display) disposed in the plurality of housings (310, 320, 330). At least one of the first magnetic module (150) or the second magnetic module (160) can include a deformable shape memory alloy member so that the electronic device (300) can be easily unfolded.The first magnetic module (150) and the second magnetic module (160) according to the embodiments disclosed in this document may be included in an electronic device (e.g., a notebook (1990) of FIG. 21, a foldable type smartphone (1991-2), or a game machine) that includes at least one hinge and is formed to be foldable around the at least one hinge, and may be used for folding and unfolding operations of the electronic device.

[0137] FIG. 21 is a block diagram of an exemplary electronic device (2100) capable of performing the operations described in this document.

[0138] Referring to FIG. 21, an electronic device (2100) (e.g., the electronic device (100) of FIG. 1A, the electronic device (200) of FIG. 19, or the electronic device (300) of FIG. 20) may be one of various forms of electronic devices, such as a notebook (2190), smartphones (2191) having various form factors (e.g., a bar-type smartphone (2191-1), a foldable-type smartphone (2191-2), or a sliderable (or rollable) type smartphone (2191-3)), a tablet (2192), a cellular phone (not shown), and other similar computing devices (not shown). The components, their relationships, and their functions illustrated in FIG. 21 are exemplary only and do not limit the implementations described or claimed in this document. The electronic device (2100) may be referred to as a mobile device, a user device, a multi-function device, a portable device, or a server.

[0139] The electronic device (2100) may include components including at least one processor (2110) (hereinafter referred to as processor (2110)), at least one memory (2120) (hereinafter referred to as memory (2120)), at least one display (2140) (hereinafter referred to as display (2140)) (e.g., the first display (130) of FIG. 1A or the second display (131) of FIG. 1B), at least one image sensor (2150) (hereinafter referred to as image sensor (2150)), at least one communication circuit (2160) (hereinafter referred to as communication circuit (2160)), and / or at least one sensor (2170) (hereinafter referred to as sensor (2170)) (e.g., at least one first sensor module (104) of FIG. 1A or at least one second sensor module (126) of FIG. 1B). The above components are merely exemplary. For example, the electronic device (2100) may include other components (e.g., power management integrated circuitry (PMIC), audio processing circuitry, an antenna, a rechargeable battery, or input / output interfaces). For example, some components may be omitted from the electronic device (2100). For example, some components may be integrated into a single component.

[0140] The processor (2110) may be implemented as one or more IC (integrated circuit (or circuitry)) chips and may perform various data processing. The processor (2110) may include at least one electrical circuit and may individually or collectively perform distributed processing of instructions (or programs, data, etc.) stored in the memory (2120). The processor (2110) may include a processor assembly including one or more processing circuits. The processor (2110) may include any processing circuit operative to control the performance and operations of one or more components of the electronic device (2100) (e.g., the memory (2120), the display (2140), the image sensor (2150), the communication circuit (2160), and / or the sensor (2170)). For example, the processor (2110) (e.g., an application processor (AP)) may be implemented as a system on chip (SoC) (e.g., a single chip or chipset). For example, the processor (2110) may be implemented as multiple cores (or at least one core circuit), multiple chips, or multiple chipsets. For example, the processor (2110) may include one or more processing circuits. For example, the processor (2110) may include one or more processing circuits configured to individually and / or collectively perform various functions of the present disclosure. As a non-limiting example, at least a portion of the processor (2110) may be included in a first chip of the electronic device (2100), and at least another portion of the processor (2110) may be included in a second chip of the electronic device (2100) that is different from the first chip of the electronic device (2100).

[0141] For example, the processor (2110) may include a central processing unit (CPU) (2111), a graphics processing unit (GPU) (2112), a neural processing unit (NPU) (2113), an image signal processor (ISP) (2114), a display controller (2115), a memory controller (2116), a storage controller (2117), a communication processor (CP) (2118), and / or a sensor interface (2119). These components of the processor (2110) are merely exemplary. For example, the processor (2110) may further include other components. For example, some components of the processor (2110) may be omitted from the processor (2110). For example, some components of the processor (2110) may be included as separate components of the electronic device (2100) outside the processor (2110). For example, some components of the processor (2110) (e.g., memory controller (2116)) may be included within other components (e.g., at least a portion of memory (2120), an interface (e.g., available for connection to at least one component of the electronic device (100)), a display (2140) and / or an image sensor (2150)).

[0142] The processor (2110) may cause other components of the electronic device (2100) to perform various operations by executing instructions stored in the memory (2120). The CPU (2111) (or central processing circuit) may be configured to control components of the processor (2110) based on the execution of instructions stored in the memory (2120) (e.g., volatile memory (2121) and / or non-volatile memory (2122)). The GPU (2112) (or graphics processing circuit) may be configured to execute parallel operations (e.g., rendering). The NPU (2113) (or neural processing circuit, or artificial intelligence (AI) chip) may be configured to execute operations for an artificial intelligence model (e.g., convolution computation). The ISP (2114) (or image signal processing circuit) may be configured to process a raw image acquired through the image sensor (2150) into a format suitable for a component within the electronic device (2100) or a component of the processor (2110). The display controller (2115) (or display control circuit, or display processing unit (DPU)) may be configured to process an image acquired from the CPU (2111), the GPU (2112), the ISP (2114), or the memory (2120) (e.g., the volatile memory (2121)) into a format suitable for the display (2140). The memory controller (2116) (or memory control circuit) may be configured to control reading data from the volatile memory (2121) and writing data to the volatile memory (2121). The storage controller (2117) (or storage control circuit) may be configured to control reading data from and writing data to the nonvolatile memory (2122).The CP (2118) (communication processing circuit) may be configured to process data obtained from a component of the processor (2110) into a format suitable for transmission to another electronic device via the communication circuit (2160), or to process data obtained from another electronic device via the communication circuit (2160) into a format suitable for processing by the component of the processor (2110). For example, the communication circuit (2160) may include one or more communication circuits. The sensor interface (2119) (or sensing data processing circuit, sensor hub) may be configured to process data on the state of the electronic device (2100) and / or the state of the surroundings of the electronic device (2100), obtained via the sensor (2170), into a format suitable for the component of the processor (2110).

[0143] The memory (2120) may include one or more storage media (or one or more storage devices). For example, the memory (2120) may include a memory assembly including one or more storage media. For example, the one or more storage media may include permanent memory (e.g., non-volatile memory (2122)) such as a hard drive, flash memory, read-only memory (ROM), semi-permanent memory (e.g., volatile memory (2121)) such as random access memory (RAM), any other suitable type of storage (or storage assembly), or any combination thereof. The memory (2120) may include cache memory, which is one or more different types of memory used to temporarily store data for a function or feature of the electronic device (2100). As a non-limiting example, the cache memory may be included within the processor (2110). The memory (2120) may be fixedly embedded within the electronic device (2100) or incorporated into one or more suitable types of components (e.g., a subscriber identity module (SIM) card and / or a secure digital (SD) card) that may be repeatedly inserted into and removed from the electronic device (2100).

[0144] For example, the memory (2120) may store one or more software applications, such as an operating system (or system) software application, a firmware software application, a driver software application, a plug-in (e.g., add-in, add-on, and / or applet) software application, and / or any other suitable software applications. For example, the one or more software applications may include instructions executable by the processor (2110). For example, the memory (2120) may store instructions callable by an application programming interface (API). For example, the memory (2120) may store instructions within a library.

[0145] An electronic device according to an embodiment disclosed in the present document comprises: a hinge structure (140, 140-1); a first housing (110) and a second housing (120) that can be folded around the hinge structure; a display (130, 131) at least partially disposed in the first housing and the second housing; and a first magnetic module (150) disposed in the first housing, wherein the first magnetic module comprises: at least one magnetic body (151a, 151b) arranged in a first direction; a first magnetic body housing (151) that accommodates the at least one magnetic body; a driving unit (153) connected to the first housing and coupled with the first magnetic body housing such that the first magnetic body housing can move relative to the first housing; a power supply unit (155) mounted on one side of the driving unit; A first elastic member (156) having one end in the first direction coupled to the first magnetic housing and the other end coupled to the driving unit; and a wire (154) having one end in the first direction coupled to the power supply unit and the other end coupled to the first magnetic housing, wherein the wire includes a shape memory alloy so that the length in the first direction can be deformed as current is supplied from the power supply unit, the first elastic member is configured to be deformed in a direction opposite to a deformation direction of the wire, and the power supply unit may include a substrate (159) electrically connected to the wire and a second elastic member (158) disposed on the substrate and coupled to the one end of the wire so as to be deformed in a deformation direction of the wire.

[0146] According to one embodiment disclosed in the present document, the second elastic member may include a first portion (1581a) that contacts the electrode (1593, 1594) of the substrate and a second portion (1581b, 1581c) that extends from the first portion and is coupled to the wire.

[0147] According to one embodiment disclosed in the present document, the second portion extends from one end of the first portion in a second direction perpendicular to the first direction, and the wire and the second portion can be joined by an adhesive member.

[0148] According to one embodiment disclosed in this document, the angle formed by the first portion and the second portion can be changed according to deformation of the wire.

[0149] According to one embodiment disclosed in the present document, in a first state where no current flows through the wire, the first portion and the second portion form a first angle, and in a second state where current flows through the wire, the first portion and the second portion are deformed to form a second angle, and the second angle may be smaller than the first angle.

[0150] According to one embodiment disclosed in the present document, the second portion includes a first extension portion (1581b) extending in a second direction perpendicular to the first direction from one end of the first portion, and a second extension portion (1581c) extending in the second direction from the other end of the first portion, wherein the first extension portion and the second extension portion can be spaced apart from each other by a predetermined distance in the first direction.

[0151] According to one embodiment disclosed in this document, a first recess (1581b_3) may be formed in the first extension portion through which the wire passes and is joined to the wire by an adhesive member, and a second recess (1581c_3) may be formed in the second extension portion through which the wire passes and is joined to the wire by an adhesive member.

[0152] According to one embodiment disclosed in the present document, a first joint portion (P1) is formed from the first extension portion, a portion of the wire partially surrounded by the first extension portion, and an adhesive material applied between the first extension portion and the portion of the wire, and a second joint portion (P2) is formed from the second extension portion, another portion of the wire partially surrounded by the second extension portion, and an adhesive material applied between the second extension portion and the other portion of the wire, wherein the first joint portion and the second joint portion may be spaced apart by a first distance (D3) in the first direction in a first state in which current supply to the wire is cut off, and may be spaced apart by a second distance (D4) smaller than the first distance in the first direction in a second state in which current is supplied to the wire and the length of the wire in the first direction is contracted.

[0153] According to one embodiment disclosed in the present document, the first extension portion and the second extension portion can be bent at a predetermined angle with respect to the first portion along the shrinkage direction of the wire.

[0154] According to one embodiment disclosed in the present document, the first extension portion can be deformed in response to deformation of the wire from the one end of the wire to the first joining portion, and the second extension portion can be deformed in response to deformation of the wire from the other end of the wire to the second joining portion.

[0155] According to one embodiment disclosed in the present document, the second magnetic module (160) is further comprised of at least one magnetic body arranged inside the second housing and arranged in the first direction, the second magnetic module being aligned with the first magnetic module when the second housing is folded with respect to the first housing, and the first magnetic body housing is arranged so that an attractive force acts between the first magnetic module and the second magnetic module in a first state in which the wire is not contracted, and can be driven in a direction in which the attractive force between the first magnetic module and the second magnetic module is reduced in a second state in which the wire is contracted.

[0156] According to one embodiment disclosed in the present document, the first elastic member is configured to increase the length of the wire in the first direction when the length of the wire in the first direction is contracted, and in a state where the length of the wire in the first direction is contracted, an elastic force is applied from the first elastic member to the first magnetic housing in a second direction opposite to the first direction, and the length of the wire in the first direction can be relaxed by driving the first magnetic housing in the second direction by the elastic force.

[0157] According to one embodiment disclosed in the present document, the first magnetic module further includes a fastening member (157) connecting the driving member and the first magnetic housing, the driving member is formed with an opening (1532, 1534) for receiving the fastening member, and the first magnetic housing can be moved relative to the first housing by movement of the fastening member within the opening.

[0158] According to one embodiment disclosed in the present document, the wire housing (152) further includes a wire housing formed with a step (1523) for accommodating a portion of the wire, the wire housing being coupled with the first magnetic housing so that the other end of the wire can be fixed to the first magnetic housing, the wire housing including an upper plate (1521) coupled to the first magnetic housing and a lower plate (1522) coupled to the upper plate and having the step formed therein, and a heat transfer material can be injected into the step.

[0159] According to an embodiment disclosed in the present document, a foldable electronic device comprises: a hinge structure (140, 140-1); a first housing (110) connected to the hinge structure; a second housing (120) coupled to the hinge structure so as to be foldable with respect to the first housing about the hinge structure; a display (130, 131) at least partially disposed in the first housing and the second housing; and a first magnetic module (150) disposed on an inner edge of the first housing located below the display, wherein the first magnetic module comprises: at least one magnetic body (151a, 151b) arranged in a first direction; a first magnetic body housing (151) accommodating the at least one magnetic body; a driving unit (153) at least partially connected to the first housing and at least partially coupled with the first magnetic body housing so that the first magnetic body housing can move with respect to the first housing; A power supply unit (155) mounted on one side of the driving unit (153); a first elastic member (156) having one end in the first direction coupled to the first magnetic housing and the other end coupled to the driving unit; and a wire (154) having one end in the first direction coupled to the power supply unit and the other end coupled to the first magnetic housing, wherein the wire includes a shape memory alloy so that its length in the first direction can be deformed as current is supplied from the power supply unit, and the first elastic member is configured to be deformed in a direction opposite to a deformation direction of the wire, and at least a portion adjacent to the end of the wire coupled to the power supply unit can be formed so as to be elastically deformed in a direction corresponding to a change in length of the wire in the first direction.

Claims

1. In electronic devices, Hinge structure (140, 140-1); A first housing (110) and a second housing (120) that can be folded around the above hinge structure; A display (130, 131) at least partly disposed in the first housing and the second housing; and It includes a first magnetic module (150) arranged in the first housing, The above first magnetic module, At least one magnetic body (151a, 151b) arranged in a first direction; A first magnetic housing (151) accommodating at least one magnetic body; A driving unit (153) connected to the first housing and coupled with the first magnetic housing so that the first magnetic housing can move relative to the first housing; A power supply unit (155) mounted on one side of the above driving unit; A first elastic member (156) having one end in the first direction coupled to the first magnetic housing and the other end coupled to the driving unit; and A wire (154) is included, one end of which in the first direction is coupled to the power supply unit and the other end is coupled to the first magnetic housing. The above wire includes a shape memory alloy so that the length in the first direction can be deformed as current is supplied from the power supply unit, The first elastic member is configured to deform in a direction opposite to the deformation direction of the wire, An electronic device, wherein the power supply unit includes a substrate (159) electrically connected to the wire and a second elastic member (158) disposed on the substrate and coupled to one end of the wire so as to be deformable in the deformation direction of the wire.

2. In claim 1, An electronic device, wherein the second elastic member comprises a first portion (1581a) that contacts the electrode (1593, 1594) of the substrate and a second portion (1581b, 1581c) that extends from the first portion and is coupled to the wire.

3. In claim 2, The second portion extends from one end of the first portion in a second direction perpendicular to the first direction, An electronic device wherein the wire and the second portion are joined by an adhesive member.

4. In claim 2, An electronic device wherein the angle formed by the first part and the second part can be changed according to deformation of the wire.

5. In claim 4, In a first state where no current flows through the wire, the first portion and the second portion form a first angle, In a second state where current flows through the wire, the first portion and the second portion are deformed to form a second angle, An electronic device wherein the second angle is smaller than the first angle.

6. In claim 2, The second part includes a first extension part (1581b) extending in a second direction perpendicular to the first direction from one end of the first part, and a second extension part (1581c) extending in the second direction from the other end of the first part, An electronic device wherein the first extension portion and the second extension portion are spaced apart from each other by a predetermined distance in the first direction.

7. In claim 6, In the above first extension portion, a first recess (1581b_3) is formed through which the wire penetrates and is joined to the wire by an adhesive member. An electronic device, wherein a second recess (1581c_3) is formed in the second extension portion, through which the wire passes and is joined to the wire by an adhesive member.

8. In claim 6, A first joint (P1) is formed from the first extension portion, a portion of the wire partially surrounded by the first extension portion, and an adhesive material applied between the first extension portion and the portion of the wire, A second joint (P2) is formed from the second extension portion, another portion of the wire partially surrounded by the second extension portion, and an adhesive material applied between the second extension portion and the other portion of the wire, An electronic device wherein the first coupling portion and the second coupling portion are spaced apart by a first distance (D3) in the first direction in a first state in which the current supply to the wire is cut off, and are spaced apart by a second distance (D4) in the first direction in a second state in which the length of the wire in the first direction is contracted by supplying current to the wire.

9. In claim 8, An electronic device wherein the first extension portion and the second extension portion are bent at a predetermined angle with respect to the first portion along the shrinkage direction of the wire.

10. In claim 8, The above first extension portion is deformed in response to the deformation of the wire from the above end of the wire to the above first joining portion, An electronic device wherein the second extension portion is deformed in response to deformation of the wire from the other end of the wire to the second connecting portion.

11. In claim 1, Further comprising a second magnetic module (160) disposed inside the second housing and including at least one magnetic body arranged in the first direction, The second magnetic module is aligned with the first magnetic module while the second housing is folded relative to the first housing, An electronic device wherein the first magnetic housing is arranged so that an attractive force acts between the first magnetic module and the second magnetic module in a first state in which the wire is not contracted, and is driven in a direction in which the attractive force between the first magnetic module and the second magnetic module is reduced in a second state in which the wire is contracted.

12. In claim 1, The first elastic member is configured so that when the length of the wire in the first direction is contracted, the length in the first direction is increased, In a state where the length of the first direction of the above wire is contracted, An elastic force is applied to the first magnetic housing in a second direction opposite to the first direction from the first elastic member, An electronic device in which the length of the wire in the first direction is relaxed by driving in the second direction by the elastic force of the first magnetic housing.

13. In claim 1, The first magnetic module further includes a fastening member (157) connecting the driving unit and the first magnetic housing, An opening (1532, 1534) for receiving the fastening member is formed in the above driving part, An electronic device wherein the first magnetic housing is moved relative to the first housing by movement within the opening of the fastening member.

14. In claim 1, Further comprising a wire housing (152) having a step (1523) formed therein for accommodating a portion of the wire; The wire housing is coupled with the first magnetic housing so that the other end of the wire can be fixed to the first magnetic housing, The above wire housing includes an upper plate (1521) coupled to the first magnetic housing and a lower plate (1522) coupled to the upper plate and having the step formed thereon. An electronic device in which a heat transfer material is injected into the above step.

15. In a foldable electronic device, Hinge structure (140, 140-1); A first housing (110) connected to the above hinge structure; A second housing (120) that is joined to the hinge structure so as to be foldable relative to the first housing with the hinge structure as the center; A display (130, 131) at least partly disposed in the first housing and the second housing; and It includes a first magnetic module (150) arranged on the inner edge of the first housing located below the display, The above first magnetic module, At least one magnetic body (151a, 151b) arranged in a first direction; A first magnetic housing (151) accommodating at least one magnetic body; A driving member (153) at least partially connected to the first housing and at least partially coupled with the first magnetic housing such that the first magnetic housing can move relative to the first housing; A power supply unit (155) mounted on one side of the above driving unit (153); A first elastic member (156) having one end in the first direction coupled to the first magnetic housing and the other end coupled to the driving unit; and A wire (154) is included, one end of which in the first direction is coupled to the power supply unit and the other end is coupled to the first magnetic housing. The above wire includes a shape memory alloy so that the length in the first direction can be deformed as current is supplied from the power supply unit, The first elastic member is configured to deform in a direction opposite to the deformation direction of the wire, A foldable electronic device, wherein at least a portion adjacent to the end of the wire that is coupled to the power supply portion is formed to be elastically deformed in a direction corresponding to a change in length of the wire in the first direction.

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