Patent Publication Number: US-2023135753-A1

Title: Electronic apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a bypass continuation application of International Application No. PCT/KR2022/013203, filed on Sep. 2, 2022, which is based on and claims the priority to Korean Patent Application No. 10-2021-0150034, filed on Nov. 3, 2021, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     1. Field 
     The disclosure relates to an electronic apparatus, and more particularly, to an electronic apparatus including a power supply device having two foldable housings. 
     2. Description of the Related Art 
     A related art electronic apparatus may have a power supply device inside its main body. Recently, power consumption has increased as electronic apparatuses increase in performance and size, and accordingly, a volume of the power supply device increases, which causes an increase in a thickness of the electronic apparatus in which the power supply is embedded. 
     In order to provide an electronic apparatus with a reduced thickness, there is a need for a power supply device with a low profile. 
     SUMMARY 
     Provided is an electronic apparatus including a power supply device having two foldable housings, which allows for a low profile. 
     In accordance with an aspect of the disclosure, an electronic apparatus includes: a main body; and a power supply device configured to be electrically connected to the main body. The power supply device includes: a first housing comprising a first circuit configured to receive alternating current (AC) power; a second housing comprising a second circuit configured to supply direct current (DC) power to the main body; a hinge connected to the first housing and the second housing, and configured to be folded; and a flexible conductive structure electrically connecting the first circuit and the second circuit. 
     The flexible conductive structure may include a metal wire or a flexible circuit board. 
     The hinge may include: a hinge housing; and a hinge structure provided in the hinge housing. 
     The flexible conductive structure may extend through the hinge housing. 
     The hinge structure may include: a first shaft rotatably connecting the first housing and the hinge housing; and a second shaft extending in parallel with the first shaft and rotatably connecting the second housing and the hinge housing. 
     The power supply device may include: a first substrate having a first surface on which the first circuit is disposed; and a second substrate having a second surface on which the second circuit is disposed, and a third surface which faces the first surface of the first substrate in a state in which the power supply device is in a fully folded configuration. 
     A first surface of the first housing may face a second surface of the second housing in a state in which the power supply device is in a fully folded configuration. The power supply device may include: a first magnetic member provided on the first surface of the first housing; and a second magnetic member provided on the second surface at a position corresponding to the first magnetic member, and having a polarity opposite to that of the first magnetic member. 
     The second housing may include a plurality of DC power output ports. 
     The power supply device may further include a sliding door configured to selectively expose one of the plurality of DC power output ports. 
     The main body may include a DC power input port, and the second housing may include a DC power output port configured to engage and electrically connect with the DC power input port. 
     The electronic apparatus may further include a stand configured to support the main body, the first housing may be configured to be mounted to a rear surface of the stand, and the second housing may be configured to be mounted to a rear surface of the main body. 
     An anchoring protrusion may protrude from the rear surface of the stand, and the first housing may have a groove formed therein which has a shape configured to engage with the anchoring protrusion. 
     The stand may include: a first supporting structure configured to extend horizontally on a floor; and a second supporting structure connected to the first supporting structure and the rear surface of the main body. An angle between the main body and the second supporting structure may correspond to an angle between the first housing and the second housing. 
     The electronic apparatus may further include a wall mount configured to fix the main body to a wall, and the first housing and the second housing may be mounted to a rear surface of the main body. 
     An anchoring protrusion may protrude from the rear surface of the main body, and the first housing may have a groove formed therein which has a shape configured to engage with the anchoring protrusion. 
     The first circuit may be further configured to generate a first DC voltage based on the AC power, and the second circuit may be further configured to obtain, based on the first DC voltage, a second DC voltage having a voltage level that is different from that of the first DC voltage. 
     The first circuit may further include an electromagnetic interference (EMI) filter and a power factor correction (PFC) circuit. 
     The first housing may further include an AC power input port. 
     The electronic apparatus may further include: a media input port configured to receive encoded media data; and a media output port configured to output decoded media data. One from among the first circuit and the second circuit may be further configured to obtain the decoded media data based on the encoded media data. 
     In accordance with an aspect of the disclosure, a method of an electronic device including a first housing coupled to a second housing via a hinge is provided. The method includes: receiving AC power via a first circuit provided in the first housing; converting the AC power to DC power; and providing the DC power to a DC output port provided in the second housing. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a front view of a power supply device according to an embodiment; 
         FIGS.  2 A,  2 B and  2 C  are side views illustrating a power supply device in an unfolded state, a folded state, and a fully folded state, respectively; 
         FIGS.  3  and  4    are flowcharts illustrating a process in which a power supply device converts AC power into DC power; 
         FIG.  5    is a side view illustrating a fully folded state of a power supply device; 
         FIGS.  6  and  7    are views illustrating a structure in which a power supply device is mounted on a stand-type electronic apparatus; 
         FIGS.  8  and  9    are views illustrating a structure in which a power supply device is mounted on a wall-mounted electronic device; 
         FIGS.  10 ,  11 , and  12    are views illustrating a structure in which a power supply device having a plurality of DC power output ports is mounted on an electronic apparatus; 
         FIG.  13    is a view illustrating a structure in which a power supply device is connected to an electronic apparatus through a wire member; and 
         FIGS.  14 A,  14 B and  14 C  are views illustrating a structure of a cover member provided on a power supply device. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, embodiments will be described in detail with reference to the drawings. In the following description, same drawing reference numerals are used for the same elements even in different drawings. In the following description, well-known functions or constructions may not be described in detail if they would obscure the description with unnecessary detail. Further, dimensions of various elements in the accompanying drawings may be arbitrarily selected for assisting in a comprehensive understanding. In addition, the following embodiments may be modified into various other forms, and the scope of the technical spirit of the present disclosure is not limited to the following examples. Rather, these embodiments are provided so that the present disclosure will be more thorough and complete, and will fully convey the scope of the technical spirit of the present disclosure to those skilled in the art. 
     The terms used in the disclosure and the claims may be general terms selected in consideration of the functions of the various embodiments of the disclosure. However, such terms may vary depending on an intention of those skilled in the art, a legal or technical interpretation, an emergence of a new technology, or the like. Also, there may be some terms arbitrarily selected by an applicant. Such terms may be construed according to meanings defined in the disclosure, and may also be construed based on general contents of the disclosure and a typical technical concept in the art unless the terms are not specifically defined. 
     In the disclosure, the terms “include”, “may include”, “comprise” or “may comprise” designate the presence of features, numbers, steps, operations, components, elements, or a combination thereof that are written in the specification, but do not exclude the presence or possibility of addition of one or more other features, numbers, steps, operations, components, elements, or a combination thereof. 
     In the disclosure, components for explaining embodiments of the disclosure are described, but the disclosure is not necessarily limited thereto. Accordingly, some components may be changed or omitted, and the other components may be added. In addition, components may be distributed and arranged in different independent devices. 
     In the disclosure, the terms “1st” or “first” and “2nd” or “second” may use corresponding components regardless of importance or order and are used to distinguish one component from another without limiting the components. 
     In the disclosure, expressions such as “at least one from among,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. For example, the expression, “at least one from among a, b, and c,” should be understood as including only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c. 
     Aspects of embodiments will now be described in greater detail with reference to the accompanying drawings. 
       FIG.  1    is a front view of a power supply device according to an embodiment.  FIG.  2 A  is a side view illustrating a power supply device in an unfolded state,  FIG.  2 B  is a side view illustrating a power supply device in a folded state, and  FIG.  2 C  is a side view illustrating a power supply device in a fully folded state. 
     Referring to  FIGS.  1 ,  2 A,  2 B and  2 C , a power supply device  1  according to an embodiment of the disclosure may include a first housing  100 , a second housing  200 , a hinge module  300 , and a flexible member (flexible conductive structure)  400 . 
     The first housing  100  may accommodate a first circuit  110  which may receive alternating current (AC) power through an AC power input port P 1 . The AC power input port P 1  may be disposed on one side of the first housing  100 . The AC power input port P 1  may be connected to an external commercial power source (e.g., an outlet) through a wire, and accordingly, AC power may be provided to the first circuit  110  through the AC power input port P 1 . 
     The second housing  200  may accommodate a second circuit  210  for supplying direct current (DC) power to an external electronic apparatus through a DC power output port P 2 . A DC power output port P 2  may be electrically connected to an external electronic apparatus, and accordingly, DC power converted from AC power may be provided to the external electronic apparatus through the DC power output port P 2 . 
     The first and second housings  100  and  200  may have an approximately rectangular parallelepiped shape and may have the same size as each other, but the shape and size are not limited thereto. 
     At least one of the first circuit  110  and the second circuit  210  may convert AC power into DC power. For example, the first circuit  110  may convert AC power into DC power, the second circuit  210  may convert AC power into DC power, or the first circuit  110  and the second circuit  210  may convert AC power into DC power together. 
     A hinge module  300  may connect the first housing  100  and the second housing  200 , and may allow for the first housing  100  and the second housing  200  to be rotated relative to the hinge module  300  and relative to each other. For example, the first housing  100  may be connected to the hinge module  300 , and the second housing  200  may also be connected to the hinge module  300 . 
     Accordingly, the first and second housings  100  and  200  may be manipulated between a fully unfolded state, a folded state, and a fully folded state. 
     A flexible member  400  may electrically connect the first circuit  110  and the second circuit  210 . The flexible member  400  may include a metal wire or a flexible circuit board (FCB). Accordingly, the flexible member  400  may stably connect the first and second circuits  110  and  210  to each other when the first and second housings  100  and  200  are in the fully unfolded state, the folded state, and the fully folded state. 
     The hinge module  300  may include a hinge housing  310  and a hinge structure  320 . The hinge housing  310  may be disposed between the first housing  100  and the second housing  200 . The hinge structure  320  may be accommodated in the hinge housing  310 . Accordingly, because the hinge structure  320  is covered by the hinge housing  310 , it may not be observed from the outside. 
     The flexible member  400  may pass through the hinge housing  310 . For example, an intermediate section of the flexible member  400  may be accommodated in the hinge housing  310 . Accordingly, because the flexible member  400  is covered by the hinge housing  310 , it may not be observed from the outside. 
     The hinge structure  320  may include a first shaft  321  and a second shaft  322 . The first shaft  321  may rotatably connect the first housing  100  and the hinge housing  310 . The second shaft  322  may rotatably connect the second housing  200  and the hinge housing  310 . The second shaft  322  may extend in parallel with the first shaft  321 . 
     The first housing  100  may rotate with respect to the hinge housing  310  along an axis corresponding to the first shaft  321 , and the second housing  200  may rotate with respect to the hinge housing  310  along an axis corresponding to the second shaft  322 . 
     The power supply device  1  according to an embodiment of the disclosure may be folded by the first and second housings  100  and  200 , and the first and second circuits  110  and  210  may be electrically and stably connected by the flexible member  400  when the first and second housings  100  and  200  are in the fully unfolded state, the folded state, and the fully folded state. 
     Accordingly, when the first and second housings  100  and  200  are fully unfolded, folded, or fully folded, the power supply device  1  may convert AC power into DC power and provide the DC power to an external electronic apparatus by the first and second circuits  110  and  210 , and the flexible member  400 . 
     At least one of the first housing  100  and the second housing  200  may include a media port for receiving a media signal, such as an image signal and/or an audio signal. For example, the first housing  100  may include a media port, the second housing  100  may include a media port, or both the first housing  100  and the second housing  200  may include a media port. 
     A standard of the image signal received through the media port may be configured in various ways corresponding to an implementation form of the device. For example, the media port may receive an image signal by wire by high definition multimedia interface (HDMI), composite video, component video, super video, Syndicat des Constructeurs d&#39;Appareils Radiortcepteurs et Televiseurs (SCART), USB, or the like. 
     Also, at least one of the first circuit  110  and the second circuit  210  may decode an image signal. For example, the first circuit  110  may decode the image signal, the second circuit  210  may decode the image signal, or the first circuit  110  and the second circuit  210  may decode the image signal together. 
     For example, at least one of the first and second circuits  110  and  210  may decode various types of image signals received through the media port into a displayable state and provide the image signals to an external electronic apparatus. 
     For example, at least one of the first and second circuits  110  and  210  may be an H.264 decoder, but is not limited thereto, and may be implemented as a decoder according to various compression standards, such as a moving picture experts group (MPEG) decoder, a high efficiency video codec (HEVC) decoder, or the like. 
     Accordingly, the power supply device  1  according to an embodiment of the disclosure may supply both DC power and an external image signal to an external electronic apparatus. 
       FIGS.  3  and  4    are flowcharts illustrating a process in which a power supply device converts AC power into DC power. 
     Referring to  FIG.  3   , the AC power input port P 1  may be connected to an external commercial power source (e.g., an outlet) through a wire, and accordingly, AC power may be provided to the first circuit  110  through the AC power input port P 1 . 
     At least one of the first circuit  110  and the second circuit  210  may convert AC power into DC power. For example, the first circuit  110  may convert AC power into DC power, the second circuit  210  may convert AC power into DC power, or the first circuit  110  and the second circuit  210  may convert AC power into DC power together. 
     A flexible member  400  may electrically connect the first circuit  110  and the second circuit  210 . 
     The DC power output port P 2  may be electrically connected to an external electronic apparatus, and accordingly, DC power converted from AC power may be provided to the external electronic apparatus through the DC power output port P 2 . 
     Referring to  FIG.  4   , specific roles and functions of the first and second circuits  110  and  210  of the disclosure will be described. Referring to  FIG.  4   , the power supply device  1  may include a rectifier P 10  and a converter P 20 . 
     The rectifier P 10  of the power supply device  1  may include an electromagnetic interference (EMI) filter P 11  and a power factor correction (PFC) circuit P 12 . The EMI filter P 11  may rectify and smooth an input commercial AC power, and output the power as a DC power of a certain voltage. The EMI filter P 11  may include a half-wave or full-wave rectification circuit, which may be used for rectification, as well as a capacitor. The capacitor may be connected in parallel to an output terminal of the half-wave or full-wave rectification circuit for smoothing. 
     The converter P 20  of the power supply device  1  may convert the DC power rectified by the rectifier P 10  into power having a predetermined voltage. The converter P 20  may be of an insulated type, in which a primary side (input) and a secondary side (output) that is insulated from the primary side, form a transformer. The transformer may include primary and secondary windings around a core (magnetic core), and when a change in current occurs in the primary winding, an induced electromotive force may be generated in the secondary winding by a change in magnetic flux passing through the core, resulting in induced current flows. 
       FIG.  5    is a side view illustrating a fully folded state of a power supply device. Referring to  FIG.  5   , the power supply device  1  may further include a first substrate  120  and a second substrate  220 . 
     The first circuit  110  may be disposed on one surface  121  of the first substrate  120 . The second circuit  210  may be disposed on one surface  221  of the second substrate  220 . The first circuit  110  may be printed on one surface  121  of the first substrate  120 , and the second circuit  210  may be printed on one surface  221  of the second substrate  220 . 
     In a state in which the first and second housings  100  and  200  are fully folded, one surface  121  of the first substrate  120  may be disposed to face another surface  222  of the second substrate  220 , and the second substrate  220  may be provided between the second circuit  210  and the first circuit  110 . 
     Accordingly, in a state in which the first and second housings  100  and  200  are fully folded, the first circuit  110  and the second circuit  210  may be spaced apart from each other, such that heat generated from the power supply device  1  may be transferred to the outside. 
     The power supply device  1  may further include a first magnetic member  130  and a second magnetic member  230 . The first magnetic member  130  may include one or more first magnets, and the second magnetic member  230  may include one or more second magnets. 
     In a state in which the first and second housings  100  and  200  are fully folded, one surface  101  of the first housing  100  may be disposed to face the one surface  201  of the second housing  200 . The first magnetic member  130  may be disposed on one surface  101  of the first housing  100 . The second magnetic member  230  may be disposed at a position corresponding to the first magnetic member  130  on one surface  201  of the second housing  200 . 
     Also, the second magnetic member  230  may have a polarity opposite to that of the first magnetic member  130 . For example, in a state in which the first and second housings  100  and  200  are fully folded, the first and second housings  100  and  200  may pull each other by magnetic pulling power of the first and second magnetic members  130  and  230 . 
     Accordingly, a predetermined or more may be applied to the first and second housings  100  and  200  in the fully folded state to unfold the first and second housings  100  and  200 , such that the first and second housings  100  and  200  may not be unintentionally unfolded from the fully folded state, and the user may fold or unfold the first and second housings  100  and  200  with smooth feeling when using it. 
       FIGS.  6  and  7    are views illustrating a structure in which a power supply device is mounted on a stand-type electronic apparatus. 
     Referring to  FIGS.  6  and  7   , an electronic apparatus  1000  according to an embodiment of the disclosure may include a main body  10  and a power supply device  1 . 
     The electronic apparatus  1000  according to various embodiments of the disclosure may be an electronic apparatus including an image display function, a part of furniture, or a part of a building/structure. For example, the electronic apparatus  1000  may include a television, a digital video disk (DVD) player, a smartphone, a desktop personal computer (PC), a tablet personal computer, a laptop personal computer, personal digital assistant (PDA), portable multimedia player (PMP), mobile medical device, camera, wearable device, TV box (e.g., Samsung HomeSync™, Apple TV™, or Google TV™), a game console, an electronic board, an electronic signature receiving device, a projector, a measuring instrument (e.g. water, electricity, gas, a radio wave measuring device, etc.), or other electronic device. 
     Also, the electronic apparatus  1000  according to an embodiment of the disclosure may be applied to a reflective screen device that reflects light incident from a projector as well as a screen device that emits light by itself. 
     A display panel may be disposed on a front side of the main body  10 . The display panel may display various contents (e.g., text, image, video, icon and symbol, etc.), which may be viewed by the user. The display panel may include, for example, a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic light-emitting diode (OLED) display, a microelectromechanical systems (MEMS) displays, electronic paper displays, or a flexible display in which a display is bent. 
     The power supply device  1  may be connected to the main body  10 . For example, the power supply device  1  may be electrically connected to the main body  10  to supply DC power to the main body  10 . 
     Accordingly, a AC/DC power conversion circuit may not be built in the main body  10 , and instead may be external to the power supply device  1 . Thus, the main body  10  of the electronic apparatus  1000  may have a reduced profile, and may therefore be thin with a compact appearance. 
     The main body  10  may include a DC power input port P 3  on a rear surface  11 . The DC power input port P 3  may connect to the DC power output port P 2  in order to electrically connect the DC power input port P 3  to the DC power output port P 2  of the power supply device  1 . 
     The DC power output port P 2  and the DC power input port P 3  may have shapes that engage with each other. For example, the DC power output port P 2  may have a recessed structure, and the DC power input port P 3  may have a protruding structure. For example, the DC power output port P 2  may have a protruding structure, and the DC power input port P 3  may have a recessed structure. 
     Accordingly, the DC power output port P 2  and the DC power input port P 3  may be directly coupled to each other. However, the coupling structure of the DC power output port P 2  and the DC power input port P 3  is not limited thereto, and the DC power output port P 2  and the DC power input port P 3  may be spaced apart from each other, and a wire member  40  may electrically connect the DC power output port P 2  and the DC power input port P 3 . 
     The electronic apparatus  1000  may further include a stand  20  to support the main body  10 . For example, the electronic apparatus  1000  illustrated in  FIGS.  6  and  7    may be a stand-type electronic apparatus. 
     The first housing  100  of the power supply device  1  may be mounted on a rear surface  23  of the stand  20 . In addition, the second housing  200  of the power supply device  1  may be mounted on a rear surface  11  of the main body  10 . 
     For example, when the electronic apparatus  1000  is viewed from a front, because the power supply device  1  is covered by the main body  10  and the stand  20 , the electronic apparatus  1000  may have a compact appearance. 
     In addition, a width of the first housing  100  may be equal to a width of the stand  20  or smaller than the width of the stand  20 . Accordingly, because the first housing  100  is completely covered by the stand  20 , the electronic apparatus  1000  may have a more compact appearance. 
     The stand  20  may include a first anchoring protrusion  24  protruding from the rear surface  23 . The first anchoring protrusion  24  may have a hook shape. The first housing  100  may include a fixing groove  140  having a shape which may engage with the first anchoring protrusion  24 . 
     Accordingly, the power supply device  1  may be stably fixed to the stand  20 . However, the disclosure is not limited thereto, and a recessed structure may be formed on the rear surface  23  of the stand  20 , and a protruding structure may be formed on the first housing  100  to be engaged with each other. 
     In addition, the stand  20  and the first housing  100  may be mechanically coupled as described above, and may be fixed by magnetic force of a counter-polarity projectiles formed of an iron plate, plastic, or the like. 
     The stand  20  may include a first supporting member (first supporting structure)  21  disposed horizontally on the floor and a second supporting member (second supporting structure)  22  connecting the first supporting member  21  and the rear surface  11  of the main body  10 . The first supporting member  21  may be in contact with a floor, and the second supporting member  22  may extend obliquely upward from a rear end of the first supporting member  21  to a front and may be connected to the rear surface of the main body  10 . 
     An angle between the main body  10  and the second supporting member  22  may be the same as an angle t between the first housing  100  and the second housing  200 . For example, the first and second housings  100  and  200  of the power supply device  1  may stably supply DC power to the main body  10  while being folded into shapes corresponding to the main body  10  and the stand  20 . 
     Because the first and second housings  100  and  200  may be folded at various angles, the power supply device  1  according to an embodiment of the disclosure may be applied to a stand-type electronic apparatus  1000  having various shapes. 
       FIGS.  8  and  9    are views illustrating a structure in which a power supply device is mounted on a wall-mounted electronic device. 
     The electronic apparatus  1000  may further include a wall mount  30  for fixing the main body  10  to a wall. The wall mount  30  may be disposed on the rear surface  11  of the main body  10 , and may include a bracket, screws, etc., to fix the main body  10  to the wall. 
     The first and second housings  100  and  200  may be mounted on the rear surface  11  of the main body  10 . For example, the first and second housings  100  and  200  may be in contact with the rear surface  11  of the main body  10  in a fully unfolded state. 
     The main body  10  may include a second anchoring protrusion  12  protruding from the rear surface  11 . The second anchoring protrusion  12  may have a hook shape, but the shape is not limited thereto. 
     The first housing  100  may include a fixing groove  140  having a shape to engage with the second anchoring protrusion  12 . Accordingly, the power supply device  1  may be stably fixed to the main body  10 . However, the disclosure is not limited thereto, and a recessed structure may be formed on the rear surface  11  of the main body  10 , and a protruding structure may be formed on the second housing  200  which may engage with the recessed structure on the rear surface  11  of the main body  10 . 
     In addition, the main body  10  and the first housing  100  may be mechanically coupled as described above, and may be fixed by magnetic force of a counter-polarity projectiles formed of an iron plate, plastic, or the like. 
       FIGS.  10 ,  11 , and  12    are views illustrating a power supply device having a plurality of DC power output ports is mounted on an electronic apparatus. 
     The power supply device  1  may include a DC power output port P 2  formed in the second housing  200 , and the DC power output port P 2  may be electrically connected to the electronic apparatus  1000 , and thus DC power converted from AC power may be provided to the electronic apparatus  1000  through the DC power output port P 2 . 
     Also, the DC power output port P 2  may include a plurality of DC power output ports P 2 - 1  and P 2 - 2  disposed on one surface of the second housing  200 . Specifically, the DC power output port P 2  may include a stand-type port P 2 - 1  and a wall-mounted port P 2 - 2 . 
     The stand-type port P 2 - 1  may be connected to a stand-type electronic apparatus  1000 , and the wall-mounted port P 2 - 2  may be connected to a wall-mounted electronic apparatus  1000 . The stand-type port P 2 - 1  and the wall-mounted port P 2 - 2  may be disposed on the same surface of the second housing  200 . 
     As the electronic apparatus  1000  is reconfigured from the stand-type of  FIG.  11    to the wall-mounted type of  FIG.  12   , the user may connect the power supply device  1  of  FIG.  11    to the electronic apparatus  1000  by rotating the power supply device  1  180 degrees to the power supply device  1  of  FIG.  12    so that the power supply device  1  is hidden by the main body,  10  such that it cannot be seen from the front. 
     Accordingly, because the power supply device  1  cannot be seen from the front regardless of the type of the electronic apparatus  1000 , the electronic apparatus  1000  may have a compact appearance. 
     The electronic apparatus  1000  may further include a door member  240  (i.e., a door) that is slidably disposed on one surface of the second housing  200  and selectively exposes only one of the plurality of DC power output ports P 2 - 1  and P 2 - 2 . 
     When the electronic apparatus  1000  is a stand-type, the door member  240  may cover the wall-mounted port P 2 - 2  and expose the stand-type port P 2 - 1 . Also, when the electronic apparatus  1000  is of the wall-mounted type, the door member  240  may cover the stand-type port P 2 - 1  and expose the wall-mounted port P 2 - 2 . 
     Accordingly, the user may accurately connect, to the electronic apparatus  1000  without confusion, a port corresponding to the type of the electronic apparatus  1000  among the plurality of DC power output ports P 2 - 1  and P 2 - 2 . 
       FIG.  13    is a view illustrating a structure in which a power supply device is connected to an electronic apparatus through a wire member. Referring to  FIG.  13   , the power supply device  1  may be disposed at a location spaced apart from the main body  10 , and may be electrically connected to the DC power input port P 3  of the main body  10  through the wire member  40 . 
     For example, the main body  10  may include the DC power input port P 3  for receiving DC power on the rear surface  11 , and the wire member  40  may electrically connect the DC power output port P 2  and the DC power input port P 3 . 
     Specifically, the power supply device  1  may receive AC power through an external wire W connected to the AC power input port P 1 , convert the AC power to DC power, and provide the DC power input port P 3  of the main body  10  through the wire member  40  connected to the DC power output port P 2 . 
     In this configuration, the power supply device  1  may be in a fully folded state, but is not limited thereto, and may be in a fully unfolded state or a partially folded state. 
     As the power supply device  1  and the main body  10  are connected through the wire member  40 , a protruding structure and a recessed structure may not be formed in the power supply device  1  and the main body  10 . The structure may also be applied to the stand-type electronic apparatus  1000  or wall-mounted electronic apparatus  1000  described above. 
       FIGS.  14 A,  14 B and  14 C  are views illustrating a structure of a cover member provided on a power supply device. Referring to  FIGS.  14 A,  14 B and  14 C , a cover member  50  may be provided on the power supply device  1 . The cover member  50  may be fixed to at least one of the main body  10 , the stand  20 , and the power supply device  1 , but is not limited thereto. In the cover member  50 , a hole may be formed at a position corresponding to a port of the power supply device  1 , such that the cover member  50  may not interfere with an electrical connection through the AC power input port P 1  or the DC power output port P 2 . 
     The cover member  50  may cover the power supply device  1  such that the power supply device  1  is not exposed to the outside. The cover member  50  may be formed of plastic, but is not limited thereto. In addition, the cover member  50  may be formed with a picture or pattern on its outer surface. Accordingly, the electronic apparatus  1000  may have an aesthetic appearance by the cover member  50  while the power supply device  1  is not exposed to the outside. 
     While aspects of embodiments have been particularly shown and described, it will be understood that various changes in form and details may be made therein without departing from the spirit and scope of the following claims.