Cover case for electronic device

Abstract

Provided, according to one embodiment of the present disclosure, is a fastening structure for reinforcing a supporting force with an accessory detachably disposed on the rear surface of a cover case. The fastening structure, according to one embodiment of the present disclosure, may comprise: a coupling portion included in the accessory and disposed on one surface in contact with the cover case; and an accommodation portion included in the cover case and, when coupled to the coupling portion, providing a space for accommodating the coupling portion. The accommodation portion may comprise: a first magnet disposed on one surface of the cover case and having a ring shape; and a moving plate partially exposed on one surface of the cover case and formed to be movable in a thickness direction of the cover case. The coupling portion may comprise: a second magnet disposed on one surface of the coupling portion so as to correspond to the first magnet and having a polarity opposite to that of the first magnet; and a fastening plate disposed to correspond to the moving plate and formed to be movable in the thickness direction of the cover case when coupled to the accommodation portion. When the accommodation portion and the coupling portion are coupled, the fastening plate presses the moving plate, and a portion of the fastening plate may be formed to be drawn into an inner side of the cover case.

Description

Cover cases for electronic devices

[0001] One embodiment disclosed in this document relates to a cover case for an electronic device, and more particularly, to a cover case detachably disposed on a back surface of the electronic device.

[0002] Recently, various electronic devices have become available to users, and recently, mobile phones, e-books, and other portable devices that allow users to access a variety of content have become increasingly popular. These electronic devices not only have wireless transmission and reception capabilities, but also incorporate diverse functions such as photography, music, video, multimedia, and games. The front of these electronic devices is equipped with a display to facilitate these multi-functional features. In recent years, smartphones have become so popular that their entire front surface is touch-sensitive and feature a large display.

[0003] Furthermore, as electronic devices become smaller and lighter, users increasingly carry them by hand or store them in pockets or bags, using them while on the go. However, the risk of loss or damage associated with storage and carrying presents a risk. To safely protect these electronic devices, various types of protective cover cases can be installed and used.

[0004] To enhance the usability of the cover case, various types of accessories may be detachably positioned toward the back of the cover case. These various types of accessories may include, for example, a handle-type accessory, a stand-type accessory, a wallet-type accessory, a wireless charging connection accessory, or an auxiliary battery-type accessory. These various types of accessories may be secured to the cover case via magnets. However, if an external force is applied in a specific direction (e.g., a lateral direction), and if sufficient securing force is not provided between the accessory and the cover case, the accessory may be detached due to external impact.

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

[0006] A fastening structure according to one embodiment of the present disclosure can strengthen the fixing force with an accessory detachably disposed on the back surface of a cover case.

[0007] A fastening structure according to one embodiment of the present disclosure may include a coupling portion included in an accessory and arranged on one surface that comes into contact with the cover case, and a receiving portion included in the cover case, which provides a space for accommodating the coupling portion when coupled with the coupling portion. The receiving portion may include a first magnet arranged on one surface of the cover case and having a ring shape, and a moving plate partially exposed to one surface of the cover case and formed to be movable in a thickness direction of the cover case. The coupling portion may include a second magnet arranged on one surface of the coupling portion to correspond to the first magnet and having an opposite polarity to the first magnet, and a fastening plate arranged to correspond to the moving plate and formed to be movable in the thickness direction of the cover case when coupled with the receiving portion. When the receiving portion and the coupling portion are coupled, the fastening plate may be formed to press the moving plate, and a portion of the fastening plate may be introduced into the inside of the cover case.

[0008] A cover case according to one embodiment of the present disclosure may include a coupling portion included in an accessory and arranged on one surface that comes into contact with the cover case, and a receiving portion included in the cover case, which provides a space for accommodating the coupling portion when coupled with the coupling portion. The receiving portion may include a first magnet arranged on one surface of the cover case and having a ring shape, and a moving plate partially exposed to one surface of the cover case and formed to be movable in the thickness direction of the cover case. The coupling portion may include a second magnet arranged on one surface of the coupling portion to correspond to the first magnet and having an opposite polarity to the first magnet, and a fastening plate arranged to correspond to the moving plate and formed to be movable in the thickness direction of the cover case when coupled with the receiving portion. When the receiving portion and the coupling portion are coupled, the fastening plate can be introduced into the inside of the cover case, thereby providing a supporting force against an external force in a direction perpendicular to the thickness direction.

[0009] The coupling structure according to one embodiment of the present disclosure can be applied to various types of accessories (1100, 1200) and cover cases (10).

[0010] The coupling structure according to one embodiment of the present disclosure can secure fixing force in the thickness direction by the coupling force of the magnet, while also securing support force against an external force applied in the horizontal direction of the cover case (10).

[0011] A coupling structure according to one embodiment of the present disclosure can prevent an accessory coupled to the back surface of a cover case from being detached due to external force.

[0012] However, the problem to be solved in this disclosure is not limited to the problem mentioned above, and may be determined in various ways without departing from the spirit and scope of this disclosure.

[0013] FIG. 1 is a perspective view of a cover case and a coupling portion coupled to a receiving portion included in the cover case, according to one embodiment of the present disclosure.

[0014] FIG. 2 is a rear view illustrating a cover case and a receiving portion according to one embodiment of the present disclosure.

[0015] FIG. 3 is an exploded perspective view of a cover case and a receiving portion according to one embodiment of the present disclosure.

[0016] FIG. 4 is a front view of a joint portion according to one embodiment of the present disclosure.

[0017] FIG. 5 is an exploded perspective view of a joint portion according to one embodiment of the present disclosure.

[0018] FIG. 6 is a cross-sectional view of a state before a receiving portion and a joining portion are joined according to one embodiment of the present disclosure.

[0019] FIG. 7 is a cross-sectional view of a state before a receiving portion and a joining portion are joined according to one embodiment of the present disclosure.

[0020] FIG. 8 is a cross-sectional view of a state in which a receiving portion and a coupling portion are coupled according to one embodiment of the present disclosure.

[0021] FIG. 9 is a cross-sectional view of a state before the receiving portion and the joining portion are joined according to one embodiment of the present disclosure.

[0022] FIG. 10 is a cross-sectional view of a state in which a receiving portion and a coupling portion are coupled according to one embodiment of the present disclosure.

[0023] FIG. 11 is a front view and a back view of an accessory including a coupling portion according to one embodiment of the present disclosure.

[0024] FIG. 12 is a front view and a back view of an accessory including a coupling portion according to one embodiment of the present disclosure.

[0025] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0026] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0027] The singular form of a noun corresponding to an item may include one or more items, unless the context clearly indicates otherwise.

[0028] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0029] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0030] When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0031] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0032] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0033] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0034] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0035] Hereinafter, in this document, the terms "front-backward direction," "left-right direction," and "up-down direction" may be used based on the drawings shown, and the shape and position of each component are not limited thereby. However, unless otherwise stated, the cover case described in this document (e.g., the cover case (10) of FIG. 1) may have its direction defined based on the direction of the electronic device (e.g., a smartphone) to which the cover case (10) is to be coupled.

[0036] For example, in the case of an electronic device in which a display is exposed on one side of the electronic device and a housing covering the display is disposed on the side and back sides of the electronic device, the side on which the display is exposed can be defined as the front side of the electronic device, and the other side opposite the front side can be defined as the back side of the electronic device. For example, when a cover case (10) is coupled to an electronic device, a side of the cover case (10) that comes into contact with the back side of the electronic device can be defined as the front side of the cover case (10). For example, when a cover case (10) is coupled to an electronic device, a side opposite the front side of the cover case (10) can be defined as the back side of the cover case (10). For example, when a cover case (10) is coupled to an electronic device, the sides of the cover case (10) corresponding to the upper side, lower side, left side, and right side of the electronic device can be defined as the upper side, lower side, left side, and right side of the cover case (10), respectively.

[0037] The cover case (10) described below may be understood as an example to aid understanding of the present disclosure, and it is understood that it may be implemented in various modified forms. In addition, some of the attached drawings are not drawn to scale, and the dimensions of some components may be exaggerated to aid understanding of the present disclosure.

[0038] The operating principle and embodiments of the present invention will be described with reference to the attached drawings below.

[0039] FIG. 1 is a perspective view of a cover case (10) and a coupling portion (200) coupled to a receiving portion (100) included in the cover case (10) according to one embodiment of the present disclosure.

[0040] FIG. 2 is a rear view illustrating a cover case (10) and a receiving portion (100) included in the cover case (10) according to one embodiment of the present disclosure.

[0041] Referring to FIGS. 1 and 2, a cover case (10) may be detachably arranged with respect to an electronic device, and may be arranged to surround at least a portion of the electronic device when coupled with the electronic device. The cover case (10) may protect the electronic device from damage caused by external impact (e.g., physical damage and / or chemical damage). The cover case (10) may provide various colors or textures to the exterior of the electronic device, thereby evoking aesthetic appeal to the user.

[0042] According to one embodiment, the cover case (10) can be combined with various types of electronic devices. For example, the electronic device can include at least one of a portable communication device (e.g., a smartphone), a tablet personal computer, a mobile phone, a video phone, an e-book reader, a desktop personal computer, a laptop personal computer, a netbook computer, a workstation, a server, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a mobile medical device, a camera, or a wearable device. In addition, the electronic device can include an electronic device that can be combined with the cover case (10), is portable by a user, and has a camera positioned on the front, back, or both sides.

[0043] According to one embodiment, an accessory may be coupled to the back surface of the cover case (10). The accessory may include, for example, a wallet-type accessory (e.g., the wallet-type accessory (1000) of FIG. 10), a handle-type accessory (e.g., the handle-type accessory (1100) of FIG. 11), a stand-type accessory, an accessory for wireless charging connection, and an auxiliary battery-type accessory. The accessory may be coupled toward the back surface of the cover case (10).

[0044] According to one embodiment, the accessory may include a coupling portion (200) that is arranged to be coupled with the cover case (10). The coupling portion (200) may be arranged on one surface of the accessory to which the cover case (10) is attached.

[0045] According to one embodiment, the coupling portion (200) may be formed integrally with the accessory, or may be formed as a separate component and then coupled.

[0046] According to one embodiment, the cover case (10) may include a receiving portion (100) capable of receiving an accessory that is combineable with the cover case (10). The receiving portion (100) may provide attachment and fixing force to a connecting portion (200) included in the accessory when the accessory is combined.

[0047] According to one embodiment, the coupling portion (200) and the receiving portion (100) can be fixed by a coupling force by a magnet and a supporting force generated according to a physical structure. For example, the coupling portion (200) and the receiving portion (100) can generate a coupling force in a vertical direction (e.g., a thickness direction of the electronic device) by the magnet and can generate a supporting force against an external force applied in a horizontal direction according to a physical inlet structure (e.g., an external force generated from the side of the rear case (10) along the back of the electronic device). Hereinafter, a structure in which a coupling force and a supporting force are generated by the coupling of the coupling portion (200) and the receiving portion (100) will be defined as a “coupling structure,” and a fixing force and a supporting force can be generated between the rear case (10) and the accessory by the coupling structure.

[0048] According to one embodiment, the receiving portion (100) may include a first magnet (150) having a ring shape and a moving plate (110).

[0049] According to one embodiment, the first magnet (150) may be positioned to provide a magnetic bonding force when the bonding portion (200) is bonded. For example, the first magnet (150) may be positioned on the back of the rear case (10) so as to be exposed to the surface of the rear case (10). For example, the first magnet (150) may be positioned on the inside of the rear case (10) (e.g., the front of the rear case (10)) so as not to be exposed to the surface of the rear case (10).

[0050] According to one embodiment, the first magnet (150) can provide a coupling force generated by a magnetic force with a second magnet (e.g., the second magnet (250) of FIG. 4) included in the coupling portion (200). The first magnet (150) and the second magnet (250) can be formed with different polarities (e.g., opposite polarities).

[0051] According to one embodiment, the first magnet (150) may have a shape of a circular ring having a predetermined thickness. The first magnet (150) may be composed of a material having magnetic properties, and may be composed of, for example, a neodymium magnet, a ferrite magnet, a cobalt magnet, or an alnico magnet.

[0052] According to one embodiment, the moving plate (110) may be positioned inside a circumference formed by the first magnet (150) when the rear case (10) is viewed from the rear. The moving plate (110) may be formed as a plate having a predetermined thickness.

[0053] According to one embodiment, one surface of the moving plate (110) may be positioned so as to be exposed to the surface of the rear case (10). For example, the moving plate (110) may be positioned inside an opening formed in the rear case (10) (e.g., opening (110a) of FIG. 3), and one surface of the moving plate (110) may be exposed to the surface of the rear case (10).

[0054] According to one embodiment, the moving plate (110) can be inserted into the interior of the rear case (10) by a predetermined depth by pressurization. For example, when the coupling portion (200) is coupled with the receiving portion (100), the fastening plate (e.g., the fastening plate (210) of FIG. 4) included in the coupling portion (200) can be inserted inwardly by pressurization of the rear case (10), thereby causing the moving plate (110) to be inserted inwardly. As a result, a portion of the fastening plate (210) can be inserted into the interior of the rear case (10) by a predetermined depth, and the fastening structure can form a supporting force in the horizontal direction.

[0055] According to one embodiment, the moving plate (110) may be formed with a cross-sectional area of ​​a square shape. However, the present invention is not limited thereto, and the moving plate (110) may be formed with a cross-sectional area of ​​a circle or an oval shape.

[0056] FIG. 3 is an exploded perspective view of a rear case (e.g., rear case (10) of FIG. 1) and a receiving portion (100) included in the rear case (10) according to one embodiment of the present disclosure.

[0057] The embodiment of FIG. 3 can be optionally combined with the embodiments of FIGS. 1 and 2.

[0058] Referring to FIG. 3, the receiving portion (100) may include a moving plate (110), a first spring member (120), a plate supporting part (130), a first magnet (150), an adhesive member (160), and a sheet member (170).

[0059] According to one embodiment, the first magnet (150) may be placed on a first magnet mounting portion (150a) formed on the front surface of the cover case (10). The first magnet mounting portion (150a) may be formed in a negative shape, for example, by cutting or removing a portion of the front surface of the cover case (10).

[0060] According to one embodiment, the adhesive member (160) can provide an adhesive force so that the first magnet (150) is attached to the first magnet mounting portion (150a). The adhesive member (160) can fix the first magnet (150) so that the first magnet (150) does not detach from the first magnet mounting portion (150a).

[0061] According to one embodiment, the adhesive member (160) may be composed of a material having adhesive properties. For example, the adhesive member (160) may include an adhesive or an adhesive tape. The adhesive member (160) may be formed in a shape corresponding to the shape of the first magnet (250). The adhesive member (160) may be disposed between the first magnet (150) and the first magnet mounting portion (150a).

[0062] According to one embodiment, the sheet member (170) may be placed in the front direction of the first magnet (150). The sheet member (170) may cover the first magnet (150) attached to the cover case (10). For example, a surface of the sheet member (170) that comes into contact with the first magnet (150) may have an adhesive material placed or applied thereon.

[0063] According to one embodiment, the sheet member (170) may be positioned to cover the first magnet (150) to form an aesthetic feel of the cover case (10).

[0064] According to one embodiment, the moving plate (110) may be placed inside the cover case (10). For example, the moving plate (110) may be placed within an opening (110a) formed in the cover case (10).

[0065] In one embodiment, the opening (110a) may be formed by removing a portion of the cover case (10). For example, the area of ​​the opening (110a) may be formed to be greater than or equal to the area of ​​the moving plate (110). For example, the opening (110a) may have an area that does not restrict the moving plate (110) from moving in the thickness direction.

[0066] According to one embodiment, the moving plate (110) may be arranged to be movable in the thickness direction in a vertical direction (e.g., the cover case (10)) by pressure. For example, the moving plate (110) may be movable in the thickness direction by a first spring member (120) arranged on the lower side of the moving plate (110).

[0067] According to one embodiment, the first spring member (120) may be positioned on the lower side of the moving plate (110). For example, the first spring member (120) may be physically connected to the lower side of the moving plate (110).

[0068] According to one embodiment, the first spring member (120) may be disposed between the moving plate (110) and the plate support member (130). For example, one end located on the upper side of the first spring member (120) may be physically connected to the lower surface of the moving plate (110), and the other end located on the lower side of the first spring member (120) may be physically connected to the upper surface of the plate support member (130).

[0069] According to one embodiment, the first spring member (120) may be formed of an elastic material, such as a spring. For example, the first spring member (120) may be implemented as a coil spring. The first spring member (120) may be compressed and stretched in the thickness direction to move the moving plate (110). For example, when the moving plate (110) is pressurized, the first spring member (120) may be compressed. For example, when the external force acting on the moving plate (110) is no longer acting, the moving plate (110) may protrude due to the restoring force of the first spring member (120).

[0070] According to one embodiment, when no external force is applied to the moving plate (110), the upper surface of the moving plate (110) can be positioned at the same height as one surface of the cover case (10).

[0071] According to one embodiment, the first spring member (120) may be provided in one or more pieces. For example, the first spring member (120) may be provided in four pieces and connected to each corner of the lower surface of the moving plate (110). However, the present invention is not limited to the illustrated embodiment, and the number and type of the first spring member (120) may be determined in consideration of the elastic force required to allow the moving plate (110) to be retracted and / or protruded.

[0072] FIG. 4 is a front view of a coupling portion (200) (e.g., coupling portion (200) of FIG. 1) according to one embodiment of the present disclosure. FIG. 4 may be understood to illustrate one surface of the coupling portion (200) that comes into contact with a receiving portion (e.g., receiving portion (100) of FIG. 1) of a cover case (e.g., cover case (10) of FIG. 1).

[0073] FIG. 5 is an exploded perspective view of a coupling portion (200) according to one embodiment of the present disclosure.

[0074] The embodiments of FIGS. 4 and 5 can be optionally combined with the embodiments of FIGS. 1 to 3.

[0075] Referring to FIGS. 4 and 5, the coupling portion (200) may be positioned on one side of an accessory that can be coupled to the back surface of the cover case (10). The coupling portion (200) may be formed integrally with the accessory, or may be formed as a separate component and then coupled. When coupled with the receiving portion (100), the coupling portion (200) may provide fixing and supporting force.

[0076] In one embodiment, the coupling portion (200) may include a first cover (201) and a second cover (202). The first cover (201) and the second cover (202) may form the overall appearance of the coupling portion (200). For example, the first cover (201) may form one side and a side surface of the coupling portion (200). For example, the second cover (202) may form the back surface of the coupling portion (200).

[0077] In one embodiment, the second cover (202) may provide the function of a handle or grip that facilitates gripping by the user. Alternatively, the second cover (202) may provide the function of a stand that supports the electronic device when the side of the electronic device to which the cover case (10) is coupled is positioned so that it faces the floor.

[0078] According to one embodiment, the first cover (201) and the second cover (202) may be joined by a fastening means. For example, the first cover (201) and the second cover (202) may be joined by a fastening screw (240).

[0079] According to one embodiment, the fastening screw (240) can pass through the second fastening hole (240a) formed in the second cover (202) and be coupled to the fastening screw groove (240b) formed in the first cover (201). As a result, the second cover (202) and the first cover (201) can be coupled.

[0080] According to one embodiment, the fastening screws (240) may be provided in multiple numbers. For example, the fastening screws (240) may be arranged along the perimeter of the second cover (202) and the first cover (201). Without being limited to what is shown, the fastening screws (240) may be provided in different numbers to correspond to the sizes of the first and second covers (201, 202), and may be arranged in various forms.

[0081] According to one embodiment, a fastening screw sheet (241) may be arranged above the head portion (e.g., screw head) of the fastening screw (240). For example, the fastening screw sheet (241) may cover the fastening screw (240) from being exposed to the outside. For example, the fastening screw sheet (241) may prevent the fastening screw (240) from being damaged due to being exposed to the outside. For example, the fastening screw sheet (241) may enhance the aesthetic appeal to the user by covering the fastening screw (240) from being exposed to the outside.

[0082] According to one embodiment, the second magnet (250) may be positioned between the first cover (201) and the second cover (202). The second magnet (250) may provide a magnetic bonding force with the first magnet (e.g., the first magnet (150) of FIG. 1). In order to provide a bonding force with the first magnet (150), the second magnet (250) may be formed with a different polarity (e.g., an opposite polarity) from the first magnet (150).

[0083] According to one embodiment, the second magnet (250) may be positioned along the perimeter of the first cover (201) and / or the second cover (202). For example, the second magnet (250) may have the shape of a circular ring.

[0084] In one embodiment, the second magnet (250) may have the shape of a circular ring having a predetermined thickness. For example, the second magnet (250) may have the same or similar shape as the first magnet (150).

[0085] According to one embodiment, the second magnet (250) may be composed of a material having magnetic properties, for example, a neodymium magnet, a ferrite magnet, a cobalt magnet, or an alnico magnet.

[0086] In one embodiment, the adhesive member (260) can provide an adhesive force so that the second magnet (250) can be attached to the second cover (260). The adhesive member (260) can secure the second magnet (250) so that the second magnet (250) is attached to the second cover (260) and does not become detached.

[0087] In one embodiment, the adhesive member (260) may be composed of a material having adhesive properties. For example, the adhesive member (260) may include an adhesive or adhesive tape. The adhesive member (260) may be formed in a shape corresponding to the shape of the second magnet (250).

[0088] Although not shown, an adhesive member (260) may be additionally provided and placed between the second magnet (250) and the first cover (201). The additionally provided adhesive member (260) may provide fixing force to fix the second magnet (250) to the first cover (201) so that the second magnet (250) does not come off from the first cover (201).

[0089] According to one embodiment, the coupling portion (200) may include a fastening plate (210). The fastening plate (210) may be positioned to come into contact with a moving plate (110) included in the receiving portion (100) when the receiving portion (100) and the coupling portion (200) are coupled.

[0090] According to one embodiment, the fastening plate (210) may be positioned above a fastening plate mounting portion (210a) formed on the second cover (202). The fastening plate mounting portion (210a) may be formed by recessing or removing a portion of the second cover (202). For example, the fastening plate mounting portion (210a) may have substantially the same cross-sectional area as the fastening plate (210).

[0091] According to one embodiment, the fastening plate (210) may include a plurality of legs (211). The plurality of legs (211) may be arranged on the lower surface of the fastening plate (210) to support the fastening plate (210) in the thickness direction. For example, one end located on the upper side of the plurality of legs (211) may be connected to the lower side of the fastening plate (210). The other end located on the lower side of the plurality of legs (211) may be connected to the second cover (202) or the first cover (201).

[0092] According to one embodiment, the fastening plate (210) and the plurality of legs (211) may be formed integrally or formed as separate components and then joined.

[0093] According to one embodiment, the plurality of legs (211) may be provided, for example, four. However, the number is not limited to that shown, and may be set in consideration of the elastic force provided from the second spring member (220) connected to the fastening plate (210) and / or the number of second spring members (220).

[0094] According to one embodiment, the fastening plate (210) can be moved by the second spring member (200). For example, the fastening plate (210) can be moved in the thickness direction by the second spring member (200) being compressed or stretched by an external force.

[0095] In one embodiment, the second spring member (220) may be positioned on the lower side of the fastening plate (210). For example, the second spring member (220) may be physically connected to the lower side of the fastening plate (210).

[0096] According to one embodiment, the second spring member (220) may be positioned between the fastening plate (210) and the second cover (202). For example, one end located on the upper side of the second spring member (220) may be physically connected to the lower surface of the fastening plate (210), and the other end located on the lower side of the second spring member (220) may be physically connected to the upper surface of the second cover (202).

[0097] In one embodiment, the elasticity of the second spring member (220) may be different from the elasticity of the first spring member (120). For example, the elasticity of the second spring member (220) may be greater than the elasticity of the first spring member (120). Accordingly, when the receiving portion (100) and the connecting portion (200) are connected to form a connecting structure, the connecting plate (210) may press the moving plate (110).

[0098] According to one embodiment, the elastic force of the second spring member (220) may be relatively small with respect to the coupling force between the first magnet (150) and the second magnet (250).

[0099] According to one embodiment, the second spring member (220) may be formed of an elastic material, such as a spring. For example, the second spring member (220) may be implemented as a coil spring. The second spring member (220) may be compressed and stretched in the thickness direction to move the fastening plate (210). For example, when the fastening plate (210) is pressed, the second spring member (220) may be compressed. For example, when the external force acting on the fastening plate (210) is no longer acting, the fastening plate (210) may protrude due to the restoring force of the second spring member (220).

[0100] According to one embodiment, when no external force is applied to the fastening plate (210), the upper surface of the fastening plate (210) may be arranged to protrude a predetermined height relative to the second cover (202).

[0101] According to one embodiment, the second spring member (200) can be coupled with a plurality of legs (211). The second spring member (220) can be arranged to penetrate a first fastening hole (220a) formed in the second cover (202). The second spring member (220) penetrating the first fastening hole (220a) can be fixed by a fixing ring (230). For example, the fixing ring (230) can include a snap ring or a washer. For example, the fixing ring (230) can be implemented as an E-ring (E-type snap ring).

[0102] According to one embodiment, when the coupling portion (200) is coupled with the receiving portion (100), the fastening plate (210) included in the coupling portion (200) presses the moving plate (110) included in the receiving portion (100), and a part of the fastening plate (210) can be introduced into the inside of the cover case (10). When the coupling portion (200) and the receiving portion (100) are coupled, the coupling force is provided by the attractive force between the second magnet (250) of the coupling portion (200) and the first magnet (150) of the receiving portion (100), and at the same time, the fastening structure can strengthen the coupling force and the supporting force between the rear case (10) and the accessory by providing a supporting force generated when the fastening plate (210) is introduced into the inside of the cover case (10). Hereinafter, the coupling structure and principle of the fastening structure will be described with reference to FIGS. 6 and 7.

[0103] FIG. 6 is a cross-sectional view of a state before a receiving portion (e.g., receiving portion (100) of FIG. 1) and a joining portion (e.g., joining portion (200) of FIG. 2) are joined, according to one embodiment of the present disclosure.

[0104] FIG. 7 is a cross-sectional view of a state before a receiving portion (100) and a joining portion (200) are joined according to one embodiment of the present disclosure.

[0105] FIG. 8 is a cross-sectional view of a state in which a receiving portion (100) and a coupling portion (200) are coupled according to one embodiment of the present disclosure.

[0106] The embodiments of FIGS. 6 to 8 can be optionally combined with the embodiments of FIGS. 1 to 5.

[0107] Referring to FIGS. 6 to 8, FIG. 6 is an enlarged view of a portion of the receiving portion (100) and the coupling portion (200) before they are coupled by being spaced apart from each other by a predetermined distance. FIG. 7 is a view of the receiving portion (100) and the coupling portion (200) before they are coupled by being spaced apart from each other by a predetermined distance. FIG. 8 can be understood as a view of the receiving portion (100) and the coupling portion (200) being arranged adjacent to each other, thereby forming a fastening structure.

[0108] In addition, since each component included in the receiving portion (100) and the joining portion (200) has been described above in FIGS. 1 to 5, redundant descriptions will be omitted and the description will focus on the fastening structure formed by the joining of the receiving portion (100) and the joining portion (200).

[0109] According to one embodiment, the fastening structure can be formed by the combination of the receiving portion (100) and the coupling portion (200). As the receiving portion (100) and the coupling portion (200) are arranged adjacently, a coupling force due to attractive force can be generated between the first magnet (150) included in the receiving portion (100) (e.g., the first magnet (150) of FIG. 1) and the second magnet (250) included in the coupling portion (200) (e.g., the second magnet (250) of FIG. 4).

[0110] According to one embodiment, a bonding force can be formed in a vertical direction (e.g., in the thickness direction of the cover case (10)) by the attractive force of the first magnet (150) and the second magnet (250).

[0111] According to one embodiment, as the receiving portion (100) and the coupling portion (200) are coupled, the fastening plate (210) included in the coupling portion (200) can press the moving plate (110) included in the receiving portion (100).

[0112] According to one embodiment, the elastic force of the second spring member (220) (e.g., the second spring member (220) of FIG. 5) connected to the fastening plate (210) is different from the elastic force of the first spring member (120) (e.g., the first spring member (120) of FIG. 3) connected to the moving plate (110), so that, for example, the elastic force of the second spring member (220) is relatively higher than the elastic force of the first spring member (120), the fastening plate (210) can press the moving plate (110).

[0113] According to one embodiment, due to the difference in elasticity between the second spring member (220) and the first spring member (120), the fastening plate (210) can be inserted into the inside of the cover case (10) (e.g., the opening (110a) of FIG. 3) by pressing the moving plate (110). When the receiving portion (100) and the joining portion (200) are joined, a portion of the fastening plate (210) can remain inserted into the inside of the cover case (10).

[0114] In one embodiment, the cross-sectional area of ​​the fastening plate (210) may be equal to or relatively narrower than the cross-sectional area of ​​the moving plate (110) so that the fastening plate (210) presses the moving plate (110) and is introduced into the inside of the cover case (10). This minimizes physical interference when the fastening plate (210) presses the moving plate (110) and is introduced into the inside of the cover case (10).

[0115] According to one embodiment, when the receiving portion (100) and the joining portion (200) are joined, a part of the joining plate (210) is positioned to be inserted into the inside of the cover case (10), so that the joining structure is perpendicular to the thickness direction and can secure a support force against an external force applied in a horizontal direction (e.g., a direction parallel to one side of the cover case (10).

[0116] According to one embodiment, the fastening structure formed when the receiving portion (100) and the coupling portion (200) are coupled can provide a vertical coupling force by the first magnet (150) and the second magnet (250), and at the same time, provide a horizontal supporting force by the coupling plate (210) pressing the moving plate (110) and a part of the coupling plate (210) being drawn into the interior of the cover case (10).

[0117] FIG. 9 is a cross-sectional view of a state before a receiving portion (e.g., receiving portion (100) of FIG. 1) and a joining portion (e.g., joining portion (200) of FIG. 2) are joined, according to one embodiment of the present disclosure.

[0118] FIG. 10 is a cross-sectional view of a state in which a receiving portion (100) and a coupling portion (200) are coupled according to one embodiment of the present disclosure.

[0119] The embodiments of FIGS. 9 and 10 can be optionally combined with the embodiments of FIGS. 1 to 5.

[0120] Referring to FIGS. 9 and 10, FIG. 9 is a state before the receiving portion (100) and the coupling portion (200) are arranged to be spaced apart from each other by a predetermined distance, and FIG. 10 can be understood as a state in which the receiving portion (100) and the coupling portion (200) are arranged adjacent to each other, thereby forming a fastening structure.

[0121] FIGS. 9 and 10 can be understood as extended embodiments of the present disclosure in which, when a fastening structure is formed by fastening a receiving portion (100) and a joining portion (200), a horizontal supporting force is generated by the moving plate (110-1) (e.g., the moving plate (110) of FIG. 1) pressing a fastening plate (210-1) (e.g., the fastening plate (210) of FIG. 4). Therefore, overlapping descriptions will be omitted and the differences will be mainly explained.

[0122] According to one embodiment, the fastening structure can be formed by the combination of the receiving portion (100) and the coupling portion (200). As the receiving portion (100) and the coupling portion (200) are arranged adjacently, a coupling force due to attractive force can be generated between the first magnet (150-1) included in the receiving portion (100) (e.g., the first magnet (150) of FIG. 1) and the second magnet (250-1) included in the coupling portion (200) (e.g., the second magnet (250) of FIG. 4).

[0123] According to one embodiment, a bonding force can be formed in a vertical direction (e.g., in the thickness direction of the cover case (10)) by the attractive force of the first magnet (150-1) and the second magnet (250-1).

[0124] According to one embodiment, as the receiving portion (100) and the coupling portion (200) are coupled, the moving plate (110-1) included in the receiving portion (100) can press the fastening plate (210-1) included in the coupling portion (200).

[0125] According to one embodiment, the elastic force of the first spring member (120-1) (e.g., the first spring member (120) of FIG. 3) connected to the moving plate (110-1) is different from the elastic force of the second spring member (220-1) (e.g., the second spring member (220) of FIG. 5) connected to the fastening plate (210-1), so that, for example, the elastic force of the first spring member (120-1) is relatively higher than the elastic force of the second spring member (220-1), the moving plate (110-1) can press the fastening plate (210-1).

[0126] According to one embodiment, due to the difference in elasticity between the first spring member (120-1) and the second spring member (220-1), the moving plate (110-1) can be inserted into the inside of the coupling portion (200) while pressing the fastening plate (210-1). When the receiving portion (100) and the coupling portion (200) are coupled, a portion of the moving plate (110-1) can remain inserted into the inside of the coupling portion (200).

[0127] In one embodiment, the cross-sectional area of ​​the moving plate (110-1) may be equal to or relatively narrower than the cross-sectional area of ​​the fastening plate (210-1) so that the moving plate (110-1) presses against the fastening plate (210-1) and is introduced into the joining portion (200). This minimizes physical interference when the moving plate (110-1) presses against the fastening plate (210-1) and is introduced into the joining portion (200).

[0128] According to one embodiment, when the receiving portion (100) and the joining portion (200) are joined, a part of the moving plate (110-1) is positioned to be inserted into the inside of the joining portion (200), so that the joining structure is perpendicular to the thickness direction and can secure a support force against an external force applied in a horizontal direction (e.g., a direction parallel to one surface of the cover case (10)).

[0129] According to one embodiment, the fastening structure formed when the receiving portion (100) and the coupling portion (200) are coupled can provide a vertical coupling force by the first magnet (150-1) and the second magnet (250-1), and at the same time, provide a horizontal supporting force by the moving plate (110-1) pressing the coupling plate (210-1) and a part of the coupling plate (110-1) being drawn into the interior of the coupling portion (200).

[0130] FIG. 11 is a front view and a back view of an accessory (1100) including a coupling portion (200-2) (e.g., coupling portion (200) of FIG. 1) according to one embodiment of the present disclosure. FIG. 11 (a) illustrates a front view of the accessory (1100), and FIG. 11 (b) illustrates a back view of the accessory (1100).

[0131] FIG. 11 illustrates an example of a wallet-type accessory (1100) including a coupling portion (200-2) on the back surface of the accessory (1100), which may be understood as an extended embodiment of the present disclosure.

[0132] The embodiment of FIG. 11 can be optionally combined with the embodiments of FIGS. 1 to 9.

[0133] Referring to FIG. 11, an accessory (1100) can be arranged to be coupled to the back surface of a cover case (e.g., the cover case (10) of FIG. 1). For example, the accessory (1100) can be attached to or detached from the back surface of the cover case (10) by a user.

[0134] According to one embodiment, the accessory (1100) may be implemented as a wallet-type accessory, forming a space for storing items such as cards and banknotes.

[0135] In one embodiment, the accessory (1100) may include a first portion (1110) and a second portion (1120) positioned in front of the first portion (1110). The first portion (1110) and the second portion (1120) may be composed of various materials. For example, the first portion (1010) and the second portion may be composed of one or a combination of leather, metal, plastic, and fiber.

[0136] In one embodiment, the second portion (1120) may be positioned to cover at least a portion of the first portion (1110). For example, the second portion (1120) may be positioned to overlap at least a portion of the front surface of the first portion (1110). The side and bottom surfaces of the first portion (1110) and the second portion (1120) may be closed, and an upper space between the first portion (1110) and the second portion (1120) may be open to form an inlet. The accessory (1100) may form a space capable of storing the stored object inserted toward the inlet.

[0137] According to one embodiment, a coupling portion (200-2) may be arranged on the back surface of the first portion (1110). The coupling portion (200-2) may include a fastening plate (210-2) (e.g., the fastening plate (210) of FIG. 4) and a second magnet (250-2) (e.g., the second magnet (250) of FIG. 4).

[0138] According to one embodiment, the second magnet (250-2) can form a bonding force with the first magnet (e.g., the first magnet (150) of FIG. 1) included in the cover case (10). For example, when the accessory (1100) is bonded to the cover case (10), the first magnet (150) and the second magnet (250-2) can provide a fixing force in a vertical direction (e.g., in the thickness direction of the cover case (10)).

[0139] According to one embodiment, the fastening plate (210-2) can form a support force in a horizontal direction (e.g., a direction perpendicular to the thickness direction and parallel to one surface of the cover case (10)) with a moving plate included in the cover case (10) (e.g., the moving plate (110) of FIG. 1).

[0140] According to one embodiment, when the accessory (1100) is coupled to the cover case (10), the fastening plate (210-2) can press the moving plate (110) in the thickness direction. The fastening plate (210-2) presses the moving plate (110), and a portion of the fastening plate (210-2) can be introduced into the inside of the cover case (10).

[0141] According to one embodiment, a portion of the fastening plate (210-2) is inserted into the inside of the cover case (10), thereby providing support in the horizontal direction.

[0142] According to one embodiment, the fastening structure formed by the coupling portion (200-2) included in the accessory (1100) and the receiving portion (100) included in the cover case (10) can provide a coupling force in the vertical direction and a supporting force in the horizontal direction at the same time.

[0143] FIG. 12 is a front view and a back view of an accessory (1200) including a coupling portion (200-3) (e.g., coupling portion (200) of FIG. 1) according to one embodiment of the present disclosure. FIG. 12 (a) illustrates a front view of the accessory (1200), and FIG. 12 (b) illustrates a back view of the accessory (1200).

[0144] FIG. 12 illustrates an example of a ring-shaped accessory having a connecting portion (200-3), which may be understood as an extended embodiment of the present disclosure.

[0145] The embodiment of FIG. 12 can be optionally combined with the embodiments of FIGS. 1 to 9.

[0146] Referring to FIG. 12, the accessory (1200) can be arranged to be coupled toward the back of the cover case (e.g., the cover case (10) of FIG. 1). For example, the accessory (1200) can be attached to or detached from the back of the cover case (10) by a user.

[0147] According to one embodiment, the accessory (1200) may be implemented as a ring-shaped accessory. The accessory (1200) may include a base (1201) forming a bottom surface, a first ring (1210) disposed on the front side of the base (1201), a second ring (1220) disposed on the front side of the base (1201) and positioned inside the first ring (1210), and a hinge portion (1230) disposed on the front side of the base (1201) and coupled to the second ring (1220) so that the second ring (1220) can rotate from the base (1201).

[0148] According to one embodiment, a first ring (1210), a second ring (1220), and a hinge portion (1230) may be arranged on the front side of the base (1201), and a coupling portion (200-3) may be arranged on the back side of the base (1201).

[0149] In one embodiment, one side of the second ring (1220) can be coupled with a hinge portion (1230). The hinge portion (1230) connects the second ring (1220) and the base (1201), and can be coupled with one side of the second ring (1220) so that the second ring (1220) can rotate relative to the base (1201).

[0150] According to one embodiment, the second ring (1220) may be arranged to be rotatable from the base (1201) about a portion connected to the hinge portion (1230). For example, the second ring (1220), which is arranged parallel to the first ring (1210), may be arranged at a predetermined angle from the base (1201) by a user's manipulation. For example, the predetermined angle may be, but is not limited to, 0 degrees (e.g., an angle when the first ring (1210) and the second ring (1220) are arranged parallel to each other) to 150 degrees, and may be freely rotatable.

[0151] According to one embodiment, a coupling portion (200-3) may be arranged on the back surface of the base (1201). The coupling portion (200-3) may include a fastening plate (210-3) (e.g., the fastening plate (210) of FIG. 4) and a second magnet (250-3) (e.g., the second magnet (250) of FIG. 4).

[0152] According to one embodiment, the second magnet (250-3) can form a bonding force with the first magnet (e.g., the first magnet (150) of FIG. 1) included in the cover case (10). For example, when the accessory (1200) is bonded to the cover case (10), the first magnet (150) and the second magnet (250-3) can provide a fixing force in a vertical direction (e.g., in the thickness direction of the cover case (10)).

[0153] According to one embodiment, the fastening plate (210-3) can form a support force in a horizontal direction (e.g., a direction perpendicular to the thickness direction and parallel to one surface of the cover case (10)) with a moving plate included in the cover case (10) (e.g., the moving plate (110) of FIG. 1).

[0154] According to one embodiment, the cross-sectional area of ​​the fastening plate (210-3) may be formed in a circular or oval shape. However, the present invention is not limited thereto, and the cross-sectional area of ​​the fastening plate (210-3) may be formed in a square shape.

[0155] According to one embodiment, when the accessory (1200) is coupled to the cover case (10), the fastening plate (210-3) can press the moving plate (110) in the thickness direction. The fastening plate (210-3) presses the moving plate (110), and a portion of the fastening plate (210-3) can be introduced into the inside of the cover case (10).

[0156] According to one embodiment, a portion of the fastening plate (210-3) is inserted into the inside of the cover case (10), thereby providing support in the horizontal direction.

[0157] According to one embodiment, the fastening structure formed by the coupling portion (200-3) included in the accessory (1200) and the receiving portion (100) included in the cover case (10) can provide a coupling force in the vertical direction and a supporting force in the horizontal direction at the same time.

[0158] In addition to the accessories (1100, 1200) illustrated in FIGS. 11 and 12, the coupling portion (200) may be applied to various types of accessories. For example, the accessories may further include a wireless charging connection type accessory and an auxiliary battery type accessory, and the coupling portion (200) may be arranged on the back surface of the accessory for coupling with the cover case (10). The coupling portion (200) forms a coupling structure with the receiving portion (100) included in the cover case (10), thereby providing a vertical fixing force by a magnet and, at the same time, a horizontal supporting force.

[0159] The coupling structure according to one embodiment of the present disclosure can strengthen the fixing force with an accessory that is detachably arranged on the back surface of the cover case (10).

[0160] The coupling structure according to one embodiment of the present disclosure can be applied to various types of accessories (1100, 1200) and cover cases (10).

[0161] The coupling structure according to one embodiment of the present disclosure can secure fixing force in the thickness direction by the coupling force of the magnet, while also securing support force against an external force applied in the horizontal direction of the cover case (10).

[0162] A coupling structure according to one embodiment of the present disclosure can prevent an accessory coupled to the back surface of a cover case (10) from being detached due to external force.

[0163] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0164] A fastening structure according to one embodiment of the present disclosure can provide a fastening force to a cover case (10) that can be coupled to cover a part of an electronic device and an accessory (1100, 1200) that is attached to the cover case. The fastening structure can include a coupling portion (200) that is included in the accessory (1100, 1200) and is arranged on one surface that comes into contact with the cover case (10), and a receiving portion (100) that is included in the cover case (10) and provides a space for accommodating the coupling portion (200) when coupled with the coupling portion (200). The receiving portion (100) can include a first magnet (150) that is arranged on one surface of the cover case (10) and has a ring shape, and a moving plate (110) that is partially exposed to one surface of the cover case (10) and is formed to be movable in the thickness direction of the cover case (10). The above-described coupling portion (200) may include a second magnet (250) disposed on one surface of the coupling portion (200) to correspond to the first magnet (150) and having an opposite polarity to the first magnet (150), and a fastening plate (210) disposed to correspond to the moving plate (110) and formed to be movable in the thickness direction of the cover case (100) when coupled with the receiving portion (100). When the receiving portion (100) and the coupling portion (200) are coupled, the fastening plate (210) is introduced into the inside of the cover case (10), thereby providing a supporting force against an external force in a direction perpendicular to the thickness direction.

[0165] In a fastening structure according to one embodiment of the present disclosure, the receiving portion (100) may include a first spring member (120) that is physically connected to the moving plate (110) and is compressible and extensible so that the moving plate (110) moves in the thickness direction of the cover case (10).

[0166] In a fastening structure according to one embodiment of the present disclosure, the coupling portion (200) may include a second spring member (220) that is physically connected to the fastening plate (210) and is compressible and extensible so that the fastening plate (210) moves in the thickness direction of the coupling portion (200).

[0167] In a fastening structure according to one embodiment of the present disclosure, the elasticity of the first spring member (120) and the elasticity of the second spring member (220) may be different from each other.

[0168] In a fastening structure according to one embodiment of the present disclosure, the elastic force (220) of the second spring member may be relatively greater than the elastic force of the first spring member (110).

[0169] In a fastening structure according to one embodiment of the present disclosure, the cross-sectional shapes of the moving plate (110) and the fastening plate (210) may be square.

[0170] In the fastening structure according to one embodiment of the present disclosure, the cross-sectional shapes of the moving plate (110) and the fastening plate (210) may be circular or oval.

[0171] In a fastening structure according to one embodiment of the present disclosure, the cross-sectional area of ​​the moving plate (110) may be relatively wide with respect to the cross-sectional area of ​​the fastening plate (210).

[0172] In the fastening structure according to one embodiment of the present disclosure, when the coupling portion (200) is coupled with the receiving portion (100), a coupling force in the thickness direction of the cover case can be provided by the attractive force between the first magnet (150) and the second magnet (250).

[0173] In the fastening structure according to one embodiment of the present disclosure, when the coupling portion (200) is coupled with the receiving portion (100), the coupling force between the first magnet (150) and the second magnet (250) may be relatively greater than the elastic force of the second spring member (220).

[0174] A fastening structure according to one embodiment of the present disclosure can provide a fastening force between a cover case (10) that can be coupled to cover a part of an electronic device and an accessory (1100, 1200) that is attached to the cover case (10). The fastening structure can include a coupling portion (200) that is included in the accessory (1100, 1200) and is arranged on one surface that comes into contact with the cover case (10), and a receiving portion (100) that is included in the cover case (10) and provides a space for accommodating the coupling portion (200) when coupled with the coupling portion (200). The receiving portion (100) can include a first magnet (150) that is arranged on one surface of the cover case (10) and has a ring shape, and a moving plate (110) that is partially exposed to one surface of the cover case (10) and is formed to be movable in the thickness direction of the cover case (10). The above-described coupling portion (200) may include a second magnet (250) disposed on one surface of the coupling portion (200) to correspond to the first magnet (150) and having an opposite polarity to the first magnet (150), and a fastening plate (210) disposed to correspond to the moving plate (110) and formed to be movable in the thickness direction of the cover case (100) when coupled with the receiving portion (100). When the receiving portion (100) and the coupling portion (200) are coupled, the fastening plate (210) is introduced into the inside of the cover case (10), thereby providing a supporting force against an external force in a direction perpendicular to the thickness direction.

[0175] In a fastening structure according to one embodiment of the present disclosure, the receiving portion (100) may include a first spring member (120) that is physically connected to the moving plate (110) and is compressible and extensible so that the moving plate (110) moves in the thickness direction of the cover case (10).

[0176] In a fastening structure according to one embodiment of the present disclosure, the coupling portion (200) may include a second spring member (220) that is physically connected to the fastening plate (210) and is compressible and extensible so that the fastening plate (210) moves in the thickness direction of the coupling portion (200).

[0177] In a fastening structure according to one embodiment of the present disclosure, the elastic force (220) of the second spring member may be relatively greater than the elastic force of the first spring member (110).

[0178] In a fastening structure according to one embodiment of the present disclosure, the cross-sectional area of ​​the moving plate (110) may be relatively wide with respect to the cross-sectional area of ​​the fastening plate (210).

Claims

1. In a fastening structure between a cover case (10) that can be combined to cover a part of an electronic device and an accessory (1100, 1200) that is arranged to be attachable to the cover case (10), A joining part (200) included in the above accessory (1100, 1200) and arranged on one side that comes into contact with the cover case (10); and It includes a receiving portion (100) that is included in the above cover case (10) and provides a space for receiving the connecting portion (200) when connected to the connecting portion (200). The above-mentioned receiving portion (100) is, A first magnet (150) arranged on one side of the cover case (10) and having a ring shape; and A portion of the cover case (10) is exposed on one side thereof and includes a moving plate (110) configured to be movable in the thickness direction of the cover case (10). The above-mentioned connecting portion (200) is A second magnet (250) is arranged on one side of the coupling portion (200) to correspond to the first magnet (150) and has an opposite polarity to the first magnet (150); and It includes a fastening plate (210) that is arranged to correspond to the moving plate (110) and is formed to be movable in the thickness direction of the cover case (100) when combined with the receiving portion (100). A fastening structure formed so that when the receiving portion (100) and the connecting portion (200) are connected, the fastening plate (210) presses the moving plate (110), and a part of the fastening plate (210) is drawn into the inside of the cover case (10).

2. In paragraph 1, The above-mentioned receiving portion (100) is a fastening structure including a first spring member (120) that is physically connected to the moving plate (110) and is compressible and extensible so that the moving plate (110) moves in the thickness direction of the cover case (10).

3. In paragraph 1 or 2, A fastening structure in which the above-mentioned joining portion (200) is physically connected to the fastening plate (210) and includes a second spring member (220) that is compressible and extensible so that the fastening plate (210) moves in the thickness direction of the joining portion (200).

4. In paragraph 3, A fastening structure in which the elasticity of the first spring member (120) and the elasticity of the second spring member (220) are different from each other.

5. In paragraph 4, The elastic force (220) of the second spring member is relatively large compared to the elastic force of the first spring member (110), and the fastening structure.

6. In any one of paragraphs 1 to 5, A fastening structure in which the cross-sectional area of ​​the above moving plate (110) and the above fastening plate (210) is a square.

7. In any one of paragraphs 1 to 5, A fastening structure in which the cross-sectional shape of the above moving plate (110) and the above fastening plate (210) is circular or oval.

8. In any one of paragraphs 1 to 7, A fastening structure in which the cross-sectional area of ​​the above moving plate (110) is relatively wide compared to the cross-sectional area of ​​the above fastening plate (210).

9. In paragraph 1, When the above-mentioned connecting portion (200) is connected to the receiving portion (100), A fastening structure that provides a bonding force in the thickness direction of the cover case by the attractive force between the first magnet (150) and the second magnet (250).

10. In paragraph 9, A fastening structure in which, when the above-mentioned coupling portion (200) is coupled with the above-mentioned receiving portion (100), the coupling force between the first magnet (150) and the second magnet (250) is relatively greater than the elastic force of the second spring member (220).

11. In a fastening structure between a cover case (10) that can be combined to cover a part of an electronic device and an accessory (1100, 1200) that is arranged to be attachable to the cover case (10), A joining part (200) included in the above accessory (1100, 1200) and arranged on one side that comes into contact with the cover case (10); and It includes a receiving portion (100) that is included in the above cover case (10) and provides a space for receiving the connecting portion (200) when connected to the connecting portion (200). The above-mentioned receiving portion (100) is, A first magnet (150) arranged on one side of the cover case (10) and having a ring shape; and A portion of the cover case (10) is exposed on one side thereof and includes a moving plate (110) formed to be movable in the thickness direction of the cover case (10). The above-mentioned connecting portion (200) is A second magnet (250) is arranged on one side of the coupling portion (200) to correspond to the first magnet (150) and has an opposite polarity to the first magnet (150); and It includes a fastening plate (210) that is arranged to correspond to the moving plate (110) and is formed to be movable in the thickness direction of the cover case (100) when combined with the receiving portion (100). A fastening structure that provides support for an external force in a direction perpendicular to the thickness direction by having the fastening plate (210) be introduced into the inside of the cover case (10) when the receiving portion (100) and the joining portion (200) are joined.

12. In paragraph 11, The above-mentioned receiving portion (100) is a fastening structure including a first spring member (120) that is physically connected to the moving plate (110) and is compressible and extensible so that the moving plate (110) moves in the thickness direction of the cover case (10).

13. In paragraph 11 or 12, A fastening structure in which the above-mentioned joining portion (200) is physically connected to the fastening plate (210) and includes a second spring member (220) that is compressible and extensible so that the fastening plate (210) moves in the thickness direction of the joining portion (200).

14. In paragraph 13, The elastic force (220) of the second spring member is relatively large compared to the elastic force of the first spring member (110), and the fastening structure.

15. In paragraphs 11 to 14, A fastening structure in which the cross-sectional area of ​​the above moving plate (110) is relatively wide compared to the cross-sectional area of ​​the above fastening plate (210).

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