Safety socket with switch function

Abstract

The power strip with a switch function according to an embodiment of the present invention includes: a housing assembly in which a pin through-hole into which a plug pin is inserted upward is formed, and a module arrangement space communicating with the pin through-hole is formed inside; a safety switch module disposed in the module arrangement space, rotated in one direction by contact with and pressurization of the plug pin to open an insertion path of the plug pin; a switch elastic member that provides an elastic force so that the safety switch module is rotated in the other direction to shield the insertion path; and a power supply terminal disposed outside the safety switch module inside the housing assembly, connected to an external power supply, and contacted with a power supply terminal member provided in the safety switch module when the safety switch module rotates in one direction.

Description

Technical Field

[0001] The present invention relates to a safety socket having a switch function.

Background Art

[0002] Generally, when using electricity in an indoor space such as a home or an office, or an outdoor space such as an external work site, electricity is supplied by inserting a plug into a socket installed on a wall surface or provided on a multi-tap.

[0003] Sockets include general sockets that are used by inserting an electrical plug at all places where electricity is used, such as inside and outside the walls of a building, ships, automobiles, airplanes, etc., and sockets that are provided on a multi-tap or the like and into which an electrical plug can be inserted and used.

[0004] Conventional sockets have a state in which the pin insertion openings of the plugs are always open and are mostly used while being exposed to the outside. Therefore, various foreign objects are likely to penetrate into the inside from the outside. That is, when using a socket in a place with a lot of moisture or humidity, there is a problem that moisture or humidity penetrates into the inside of the socket and accidents such as a short circuit or electric shock occur. In addition, there have frequently been cases where a metal object is inserted into the hole into which the pin of the plug is inserted and a safety accident occurs.

[0005] Recently, in order to improve the problems of conventional sockets, a safety-enhanced socket having a function such that the pin insertion opening is opened or a waterproof function when a plug is attached has been developed.

[0006] In the prior art Korean Patent Publication No. 10-2005-0113133, a safety socket having a waterproof function with the pin insertion opening being opened when a plug is attached is disclosed.

[0007] However, in the case of the prior art socket, since it has a structure in which energization also occurs when a metal foreign object is inserted into the pin insertion port, there is still a problem that an electric shock accident caused by the insertion of a foreign object cannot be prevented.

[0008] And, in the case of the prior art socket, when the pin insertion port is opened due to the insertion of a metal foreign object or the like, or when water flows into the inside of the pin insertion port in a state where the pin insertion port is opened due to a malfunction of a shielding member that shields the pin insertion port, the flowing-in water cannot be effectively discharged, and there is a problem that a short-circuit accident may occur.

[0009] Therefore, there is a need for a new concept of a safety socket with enhanced safety that can prevent an electric shock accident caused by the insertion of a metal foreign object and can effectively prevent accidents such as a short circuit even when a liquid flows into the inside through the pin insertion port.

Summary of the Invention

Problems to be Solved by the Invention

[0010] An object of the present invention is to provide a safety socket having a switch function that is provided to be energized only when a plug is inserted and ensures safety.

[0011] An object of the present invention is to provide a safety socket having a switch function in which components for providing a safety function are modularized, the structure is simple, and manufacturing is easy.

[0012] An object of the present invention is to provide a safety socket having a switch function that can discharge the liquid that has flowed into the inside and can prevent a short circuit or an electric shock.

Means for Solving the Problems

[0013] The power strip with a switch function according to an embodiment of the present invention includes a housing assembly in which a pin through-hole into which a plug pin is inserted from above is formed, and a module arrangement space communicating with the pin through-hole is formed inside; a safety switch module disposed in the module arrangement space, rotated in one direction by contact and pressurization with a plug pin to open an insertion path of the plug pin; a switch elastic member that provides an elastic force so that the safety switch module is rotated in the other direction to shield the insertion path; and a power terminal disposed outside the safety switch module inside the housing assembly and connected to an external power source. The safety switch module includes a pin insertion port into which a plug pin is inserted, which is formed with an upward opening, and a rotation guiding inclined surface in contact with the pin insertion port is formed on an upper surface, and the rotation guiding inclined surface is initially positioned to correspond to the pin through-hole, and is rotated in one direction by contact and pressurization with the plug pin and the rotation guiding inclined surface, so that the pin insertion port is positioned to correspond to the pin through-hole. A rotation case; a conduction terminal member coupled to the rotation case, rotated together with the rotation case, one end of which is in contact with a plug pin inserted inside the pin insertion port, and the other end penetrates through a side wall of the rotation case and is located outside the rotation case, and is contacted with the power terminal and energized when the rotation case rotates in one direction.

[0014] And, rotation guiding portions protruding along an edge are formed on an upper surface and a lower surface of the rotation case, and rotation guiding portion coupling portions coupled to the rotation guiding portions are formed on an upper surface and a bottom surface of the module arrangement space. One of the rotation guiding portion and the rotation guiding portion coupling portion is formed as a circular ring-shaped groove, and the other one is formed as a circular ring-shaped protrusion inserted into the groove.

[0015] The pin insertion openings are formed to penetrate the rotation case vertically and are formed in a plurality corresponding to the number of pins of the plug. A plurality of the energization terminal members are provided corresponding to the plurality of the pin insertion openings. Below the rotation case inside the housing assembly, a plurality of drain channels partitioned from each other are formed. The plurality of the pin insertion openings communicate with different drain channels respectively. The plurality of the drain channels are opened to the outside in different directions at the lower part of the housing assembly so that the liquids flowing into the different pin insertion openings do not contact each other.

[0016] The housing assembly includes a housing in which a lifting space opened upward is formed and a module placement space is formed below the lifting space; and a lifting plate provided to be liftable in the lifting space, being pushed down by the plug when the plug is attached, and having the pin through holes formed therein. The housing elastically supports the lifting plate inside, and includes a support elastic member that is elastically deformed when the lifting plate descends to provide an upward restoring force to the lifting plate.

[0017] The lifting plate includes a plate-shaped lifting plate main body portion through which the pin through openings penetrate; an extension portion extending downward at the center of the lower surface of the lifting plate main body portion; and an upper clutch portion formed at the lower part of the extension portion for one-touch operation of the lifting plate. An extension portion insertion opening into which the extension portion is inserted when the lifting plate descends is formed at the center of the rotation case. The extension portion insertion opening is provided with a clutch member that interlocks with the upper clutch portion and repeatedly restrains and releases the upper clutch portion by repeated pressing of the lifting plate for one-touch operation of the lifting plate.

Advantages of the Invention

[0018] The power strip with a switch function according to the embodiment of the present invention can be expected to have the following effects.

[0019] When a plug pin is inserted, a safety switch module is provided which is rotated in one direction by contact with and pressure on the plug pin to open the insertion path of the plug pin, and the energization terminal member that contacts the plug pin during one-way rotation is brought into contact with the power supply terminal to perform energization. This prevents the insertion of foreign objects and allows energization only when the plug is properly installed, greatly improving safety.

[0020] The safety switch module includes a rotation case in which a pin insertion opening is formed and which is rotated by contact with the plug pin, and an energization terminal member that is coupled to the rotation case, rotates together with the rotation case, and has one end positioned at the pin insertion opening and contacting the inserted plug pin. It is composed of one module that simultaneously provides a shutter function and an energization switch function. According to this, a plurality of separate configurations for implementing the shutter function and the energization switch function are not required, and the coupling structure with the housing is also simplified. Therefore, assembly and manufacturing become easier, and the risk of failure can be greatly reduced by simplifying the structure.

[0021] A plurality of drainage channels communicating with different pin insertion openings are formed at the lower part of the housing, and the plurality of drainage channels open to the outside in different directions. Therefore, even if liquid flows in from the outside through the pin insertion opening, the liquids do not come into contact with each other, and a short-circuit accident due to the energization of the liquid can be effectively prevented.

Brief Description of the Drawings

[0022]

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Figure 13

Embodiments for Carrying Out the Invention

[0023] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments in which the idea of the present invention is presented, and other inventions that can be easily proposed within the scope of the idea of the present invention or other embodiments included in the scope of the idea of the present invention can be easily proposed by adding, changing, deleting, etc. other components.

[0024] FIG. 1 is a perspective view of a power strip according to an embodiment of the present invention.

[0025] FIG. 2 is an exploded perspective view of a power strip according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a power strip according to an embodiment of the present invention.

[0026] FIG. 4 is a drawing showing the drainage channel of the lower housing according to an embodiment of the present invention. FIG. 5 is an exploded perspective view of the safety switch module according to an embodiment of the present invention.

[0027] Figure 6 is a cross-sectional view of a safety switch module according to an embodiment of the present invention. Figure 7 is a cross-sectional view of a clutch member according to an embodiment of the present invention.

[0028] Figure 8 is a plan view of a clutch member according to an embodiment of the present invention.

[0029] The safety socket of the present invention includes a general socket provided in all places using electricity, such as being embedded in the inner and outer wall surfaces of a building, or in means of transportation such as automobiles, passenger ships, trains, airplanes, etc., and includes all sockets provided in a multi-tap used to overcome the limited distance of power supply.

[0030] In addition, in the description of the present invention, for the sake of convenience of explanation, a safety socket in which one plug mounting portion is formed so that one plug can be mounted will be described as an example. However, the present invention is not limited thereto, and it is also possible to form a plurality of plug mounting portions so that a plurality of plugs can be mounted. When a plurality of plug mounting portions are formed, the internal configuration of the safety socket described later should be plural and can be configured to have the same function.

[0031] The plug 2 can be formed with a head that can be gripped by a person, and a plurality of pins protruding from the head and separated by polarity.

[0032] The safety socket 1 having a switch function according to an embodiment of the present invention (hereinafter referred to as "safety socket") can be configured to be energized when the plug 2 is completely mounted in the plug mounting portion 101.

[0033] And the safety socket 1 according to an embodiment of the present invention can be configured to insert and mount the plug 2, and after inserting and mounting the plug 2, when the plug 2 is pushed, it can be configured to have a one-touch function in which the plug 2 is automatically separated.

[0034] The safety socket 1 according to an embodiment of the present invention can include a housing 100, a lifting plate 200, a safety switch module 300, a clutch member 400, a switch elastic member 500, a support elastic member 600, and a power terminal 700.

[0035] The outer shape of the safety socket 1 can be formed by the housing 100 and the lifting plate 200, and the housing 100 and the lifting plate 200 can be included and named a housing assembly.

[0036] The housing 100 can form an internal space for accommodating the lifting plate 200, the safety switch module 300, the clutch member 400, the switch elastic member 500, the support elastic member 600, and the power terminal 700.

[0037] A plug mounting portion 101 for mounting the plug 2 can be formed on the housing 100.

[0038] The plug mounting portion 101 can be formed in a shape recessed into the interior of the housing 100 on one surface of the housing 100 so that the plug 2 can be inserted and mounted.

[0039] As an example, the plug mounting portion 101 can be formed by being recessed downward on the upper surface of the housing 100.

[0040] The internal space of the housing 100 can include a lifting space 102 and a module arrangement space 103.

[0041] The lifting space 102 can be a space formed inside the plug mounting portion 101.

[0042] The module arrangement space 103 can be formed below the lifting space 102 and can communicate with the lifting space 102.

[0043] The lifting plate 200 can include a lifting plate main body 210, an extension part 220, an upper clutch part 230, and a guide part 240.

[0044] The lifting plate main body 210 can cover the lifting space 102 and be provided to be lifted inside the lifting space 102.

[0045] The lifting plate main body 210 can have a shape corresponding to the cross-sectional shape of the lifting space 102 and be formed in a plate shape with a predetermined thickness.

[0046] A pin through-hole 211 through which the pins of the plug penetrate can be formed vertically through the lifting plate main body 210.

[0047] The pin through-holes 211 can be formed in a plurality corresponding to the number of pins of the plug.

[0048] The extension part 220 can extend downward from the center of the lower surface of the lifting plate main body 210.

[0049] The upper clutch part 230 is for the one-touch operation of the lifting plate 200 and can be configured to be interlocked with a lower clutch part 420 described later.

[0050] The upper clutch part 230 can be formed at the lower part of the extension part 220. As an example, the upper clutch part 230 can be composed of a pair of upper clutch protrusions 231 protruding outward at the lower end edge of the extension part 220.

[0051] The guide part 240 can be formed to extend downward from the lower surface of the lifting plate main body 210 and can be formed in a hollow tubular shape.

[0052] The guide parts 240 can be formed in a number corresponding to the number of the pin through-holes 211 and can be arranged to communicate with the inside of the pin through-holes 211.

[0053] That is, the guide part 240 can be formed in a tubular shape that extends downward at the edge of the pin through-hole 211.

[0054] On the other hand, elements for smoothly raising and lowering and preventing rotation of the lifting plate 200 can be formed on the lifting plate 200 and the housing 100.

[0055] As an example, a guide protrusion 215 protruding outward can be formed on the main body part 210 of the lifting plate. Correspondingly, a guide rail 105 sunken so that the guide protrusion 215 can be inserted can be formed on the inner surface of the plug mounting part 101.

[0056] The guide rail 105 can be formed to extend vertically and long corresponding to the movement path of the guide protrusion 215 due to the raising and lowering of the main body part 210 of the lifting plate.

[0057] Of course, a guide groove can be formed on the main body part 210 of the lifting plate, and correspondingly, a guide rail in a form protruding so as to be inserted into the guide groove can be formed on the inner surface of the plug mounting part 101.

[0058] On the other hand, the safety switch module 300 may be configured to perform a function of opening and closing the insertion path of the plug pin inside the housing 100.

[0059] The safety switch module 300 may be configured to open the insertion path of the plug pin by contact with a normally inserted plug pin.

[0060] And the safety switch module 300 may be configured to provide a switch function that causes the whole to rotate by contact with the plug pin so as to energize the plug.

[0061] The safety switch module 300 can include a rotating case 310 and an energizing terminal member 350.

[0062] The rotating case 310 may be formed in a columnar shape with a plurality of insertion ports extending downward on the upper surface.

[0063] The rotating case 310 may be formed to have an outer circumference larger than the inner circumference of the lifting space 102 so as to shield the lower opening of the lifting space 102.

[0064] An extension part insertion port 311 into which the extension part 220 is inserted and a pin insertion port 312 into which a plug pin is inserted may be formed in the rotating case 310.

[0065] The pin insertion ports 312 may be formed in plural corresponding to the number of pins of the plug.

[0066] Hereinafter, for convenience of explanation, a power strip 1 applied to a plug having two pins and having two pin insertion ports 312 will be described in detail as an example.

[0067] The pins of the two plugs may be named separately as a first plug pin and a second plug pin.

[0068] And the two pin insertion ports 312 may be named separately as a first pin insertion port and a second pin insertion port.

[0069] The extension part insertion port 311 and the two pin insertion ports 312 may be formed with their surroundings completely partitioned so as to be airtight with each other.

[0070] And the extension part insertion port 311 and the two pin insertion ports 312 may be formed to penetrate vertically for drainage.

[0071] And the pin insertion port 312 may be formed to have an inner circumference corresponding to the outer circumference of the guide part 240 so that the guide part 240 can be inserted when the lifting plate 200 descends.

[0072] A rotation guiding inclined surface 313 can be formed on the upper surface of the rotation case 310. The rotation guiding inclined surface 313 can be formed in contact with the pin insertion port 312. When the direction in which the rotation case 310 rotates to open the insertion path of the plug pin is defined as the opening direction, and the direction in which the rotation case 310 rotates to shield the insertion path of the plug pin is defined as the shielding direction, the rotation guiding inclined surface 313 can be formed to be arranged from the pin insertion port 312 toward the opening direction side.

[0073] Rotation guiding portions for guiding the rotation operation of the rotation case 310 can be formed on the upper and lower surfaces of the rotation case 310.

[0074] Specifically, an upper rotation guiding portion 315 protruding upward can be formed at the upper surface edge of the rotation case 310.

[0075] And a lower rotation guiding portion 316 protruding upward can be formed at the lower surface edge of the rotation case 310.

[0076] The upper rotation guiding portion 315 and the lower rotation guiding portion 316 can be formed to protrude over the entire upper and lower surface edges of the rotation case 310. In this case, the upper rotation guiding portion 315 and the lower rotation guiding portion 316 may have a ring shape placed on the upper and lower surface edges of the rotation case 310.

[0077] On the other hand, a rotation guiding portion coupling portion to which the rotation guiding portion is coupled can be formed at a position corresponding to the rotation guiding portion inside the housing 100.

[0078] Specifically, the upper surface of the module arrangement space 103 of the housing 100 can be formed to face and contact the upper surface edge of the rotation case 310.

[0079] And the bottom surface of the module arrangement space 103 of the housing 100 can be formed to face and contact the lower surface of the rotation case 310.

[0080] And an upper rotation guide part coupling part 106 into which the upper rotation guide part 315 is inserted can be formed on the upper surface of the module arrangement space 103.

[0081] The upper rotation guide part coupling part 106 can be formed in a groove shape corresponding to the shape of the upper rotation guide part 315 so that the upper rotation guide part 315 can be inserted.

[0082] And a lower rotation guide part coupling part 107 into which the lower rotation guide part 316 is inserted can be formed on the bottom surface of the module arrangement space 103.

[0083] The lower rotation guide part coupling part 107 can be formed in a groove shape corresponding to the shape of the lower rotation guide part 316 so that the lower rotation guide part 316 can be inserted.

[0084] Therefore, the rotation case 310 can be restrained from moving up and down in the module arrangement space 103.

[0085] And when the rotation case 310 rotates, the rotation guide part moves along the rotation guide part coupling part, so that the rotation case 310 can be provided to be rotatable about a virtual vertical axis formed at the center.

[0086] Of course, in the above-described embodiment, the rotation guide part is formed in a protruding structure and the rotation guide part coupling part is formed in a groove structure as an example for explanation, but the present invention is not limited thereto, and it is also possible that the rotation guide part is formed in a groove structure and the rotation guide part coupling part is formed in a protruding structure.

[0087] On the other hand, the energization terminal member 350 can include a pin contact terminal part 351, an energization terminal part 352, and a connection part 353.

[0088] A plurality of the energization terminal members 350 may be provided corresponding to the number of plug pins, and as an example, two of them may be provided.

[0089] The two energization terminal members 350 may be provided so as to correspond to one pin insertion port 312 respectively.

[0090] The two energization terminal members 350 may be divided and named as a first energization terminal member provided corresponding to the first pin insertion port and a second energization terminal member provided corresponding to the second pin insertion port.

[0091] The pin contact terminal portion 351 can be disposed inside the corresponding pin insertion port 312.

[0092] The energization terminal portion 352 can be disposed outside the rotation case 310. And the connecting portion 353 can be configured to penetrate through the outer wall of the rotation case 310 and the inner wall of the pin insertion port 312 to electrically connect the energization terminal portion 352 and the rotation case 310.

[0093] The connecting portion 353 between the pin contact terminal portion 351 and the energization terminal portion 352 may be a conductor and integrally formed.

[0094] In the initial state where the lifting plate 200 is lifted to the maximum, the pin contact terminal portion 351 is not in contact with the plug pin, and in the state where the lifting plate 200 is lowered to the maximum, it can be positioned at a height where it can contact the normally inserted plug pin.

[0095] On the other hand, the clutch member 400 can be disposed inside the extension portion insertion port 311.

[0096] The clutch member 400 can be provided so as to be rotatable around a virtual vertical axis formed at the center inside the extension portion insertion port 311.

[0097] The extension part insertion port 311 can be formed to penetrate vertically, and the upper end part and the lower end part can be formed to have steps on the inner side. That is, the inner circumferences of the upper end part and the lower end part of the extension part insertion port 311 can be formed narrower than the inner circumference of the central part where the clutch member 400 is arranged.

[0098] The clutch member 400 can be formed to have an outer circumference corresponding to the inner circumference of the central part of the extension part insertion port 311.

[0099] Therefore, the clutch member 400 can be provided in a constrained manner so as to prevent vertical movement inside the extension part insertion port 311, and can be provided to be rotatable with respect to the central vertical axis.

[0100] The clutch member 400 can be formed in a cylindrical shape with an upward opening so that the extension part 220 and the upper clutch part 230 of the lifting plate 200 can be inserted.

[0101] The internal space of the clutch member 400 can communicate with the extension part insertion port 311.

[0102] Inside the clutch member 400, a lower clutch part 420 that interlocks with the upper clutch part 230 can be formed for the one-touch operation of the lifting plate 200.

[0103] On the other hand, the switch elastic member 500 can provide a function of restoring the rotary case 310 to its initial state.

[0104] At this time, the initial state of the rotary case 310 can be defined as a state where the rotary guiding inclined surface 313 is positioned corresponding to the pin through hole 211 and is rotated to shield the insertion path of the plug pin.

[0105] After the plug pin penetrates through the pin through-hole 211 and contacts the rotation guiding inclined surface 313, when the plug is continuously pressed downward, the rotation case 310 can be rotated in the opening direction by the rotation guiding inclined surface 313.

[0106] At this time, when the rotation case 310 rotates in the opening direction, the pin insertion port 312 is positioned so as to correspond to the pin through-hole 211, and the insertion path of the plug pin can be opened. Therefore, the plug pin can be inserted into the inside of the pin insertion port 312 and contact the pin contact terminal portion 351 located inside the pin insertion port 312.

[0107] When the rotation case 310 rotates in the opening direction, the switch elastic member 500 can be elastically deformed and apply a rotational force so as to rotate the rotation case 310 in the shielding direction opposite to the opening direction.

[0108] As an example, a compression coil spring may be applied to the switch elastic member 500.

[0109] One end of the switch elastic member 500 can be fixed to the rotation case 310, and the other end can be coupled to the housing 100 so as to be elastically deformed when the switch elastic member 500 rotates in the opening direction.

[0110] On the other hand, the support elastic member 600 can provide a function of restoring the lifting plate 200 to an initial state positioned at the upper end of the lifting space 102.

[0111] As an example, a compression coil spring may be applied to the support elastic member 600. The support elastic member 600 is provided between the lifting plate 200 and the clutch member 400, and can be compressed when the lifting plate 200 descends to apply an upward force to the lifting plate 200.

[0112] When the restraint of the lifting plate 200 is released in the state where it has been lowered by the elastic support of the support elastic member 600, it can be restored to the initial state so that the plug can be easily removed.

[0113] And the lifting plate 200 can be maximally lifted by the elastic support of the support elastic member 600 and hold the initial state.

[0114] Specifically, an elastic member insertion groove 225 sunken so that the support elastic member 600 can be inserted may be formed at the center of the extension portion 220.

[0115] And inside the clutch member 400, an elastic member fixing portion 450 may be formed that protrudes from the center of the bottom surface, the lower part of the support elastic member 600 is fixed, and when the lifting plate 200 descends, it is inserted into the elastic member insertion groove.

[0116] On the other hand, the power supply terminal 700 is provided inside the housing 100 and can be electrically connected to an external power supply.

[0117] The power supply terminal 700 may include a first power supply terminal 710 connected to an external power supply of the L1 pole and a second power supply terminal 720 connected to an external power supply of the L2 pole.

[0118] The first power supply terminal 710 and the second power supply terminal 720 can be arranged outside the rotating case 310.

[0119] The power supply terminal 700 can be provided so as to selectively contact the corresponding energization terminal member 350 along the rotation direction of the case 310.

[0120] As an example, the first power supply terminal 710 can be arranged to be in contact with the power supply terminal portion 352 of the first power supply terminal member when the rotary case 310 rotates in the opening direction, and to be separated from the power supply terminal portion 352 of the first power supply terminal member when the rotary case 310 rotates in the shielding direction. That is, the first power supply terminal 710 can be positioned on the movement path of the corresponding power supply terminal member 350 due to the rotation of the rotary case 310 in the opening direction.

[0121] And the second power supply terminal 720 can be arranged to be in contact with the power supply terminal portion 352 of the second power supply terminal member when the rotary case 310 rotates in the opening direction, and to be separated from the power supply terminal portion 352 of the second power supply terminal member when the rotary case 310 rotates in the shielding direction. That is, the second power supply terminal 720 can be positioned on the movement path of the corresponding power supply terminal member 350 due to the rotation of the rotary case 310 in the opening direction.

[0122] On the other hand, a drainage channel 121 can be formed below the module placement space 103 in the housing 100.

[0123] The drainage channels 121 can be formed in a plurality corresponding to the pin insertion openings 312 and the extension insertion openings 311.

[0124] The plurality of drainage channels 121 may be divided into a first drainage channel communicating with the first pin insertion opening, a second drainage channel communicating with the second pin insertion opening, and a third drainage channel communicating with the extension insertion opening 311.

[0125] The plurality of drainage channels 121 can be partitioned from each other so that liquid does not flow between them.

[0126] A plurality of drainage holes 122 for communicating the drainage channels 121 corresponding to the pin insertion openings 312 and the extension insertion openings 311 can be formed on the bottom surface of the module placement space 103.

[0127] The plurality of drain holes 122 are formed to open vertically below the first pin insertion port, and include a first drain hole formed to communicate with the first drain channel, a second drain hole formed to open vertically below the second pin insertion port and communicate with the second drain channel, and a third drain hole formed to open vertically below the extension part insertion port 311 and communicate with the third drain channel, and may be divided accordingly.

[0128] The first drain hole and the second drain hole can be formed to extend in an arc shape along the movement path of the pin insertion port 312 corresponding to the movement of the pin insertion port 312 due to the rotation of the rotary case 310.

[0129] The plurality of drain channels 121 are formed to open in different directions at the lower edge of the housing 100, and can be formed to drain liquid in different directions.

[0130] Therefore, the liquid flowing into the extension part insertion port 311 and the plurality of pin insertion ports 312 can be discharged to the outside of the power strip 1 along the corresponding drain channels. At this time, the liquid flowing into the extension part insertion port 311 and the plurality of pin insertion ports 312 do not come into contact with each other, and are discharged in different directions along the drain channels, so that an electric shock accident caused by energization can be effectively prevented.

[0131] On the other hand, referring to FIGS. 3 to 4, the housing 110 can be formed by the combination of an upper housing 110 and a lower housing 120.

[0132] The plug mounting part 101, the lifting space 102, and the module arrangement space 103 can be formed in the upper housing 110.

[0133] And the lower housing 120 can form the lower part of the housing 110, and can be formed on the bottom surface of the module arrangement space by the lower housing 120.

[0134] And the drain channel 121 can be formed inside the lower housing 120, and the drain hole 122 can be formed to open on the upper surface of the lower housing 120.

[0135] And the lower rotating guide inner coupling portion 107 can be formed on the upper surface of the lower housing 120.

[0136] With the upper housing 110 and the lower housing 120 separated, the module placement space 103 can be opened downward, and the safety switch module 300 can be inserted and mounted in the module placement space 103.

[0137] And by coupling the lower housing 120 to the upper housing 110, the lower part of the module placement space 103 is shielded, and the lower rotating guide inner 316 can be coupled to the lower rotating guide inner coupling portion 107.

[0138] On the other hand, referring to FIGS. 5 to 6, the rotating case 310 can be formed by the coupling of the upper rotating case 320 and the lower rotating case 330.

[0139] The upper rotating case 320 can form the upper part of the rotating case 310.

[0140] And the lower rotating case 330 can form the lower part of the rotating case 310.

[0141] The upper rotating case 320 and the lower rotating case 330 can be coupled to each other by an adhesive, fusion bonding, a hook coupling structure, or the like.

[0142] As an example, the upper rotating case 320 can include a cylindrical upper case body 321 opened downward.

[0143] And the lower rotating case 330 may include a cylindrical lower case body 331 that is open upward.

[0144] The rotation guiding inclined surface 313 and the upper rotation guiding portion 315 may be formed on the upper surface of the upper case body 321.

[0145] And the lower rotation guiding portion 316 may be formed on the lower surface of the lower case body 331.

[0146] And an upper opening of the pin insertion port 312 and the extension portion insertion port 311 may be formed on the upper surface of the upper case body 321.

[0147] And a lower opening of the pin insertion port 312 and the extension portion insertion port 311 may be formed on the lower surface of the lower case body 331.

[0148] And inside the rotating case 310, a pin insertion port connecting pipe that connects the upper opening and the lower opening of the pin insertion port 312, and an extension portion insertion port connecting pipe that connects the upper opening and the lower opening of the extension portion insertion port 311 may be formed.

[0149] The pin insertion port connecting pipe and the extension portion insertion port connecting pipe may be separated vertically, with the upper part formed in the upper case body 321 and the lower part formed in the lower case body 331.

[0150] Specifically, the pin insertion port connecting pipe may include an upper pin insertion port connecting pipe 322 formed inside the upper case body 321 and a lower pin insertion port connecting pipe 332 formed inside the lower case body 331.

[0151] The upper pin insertion port connecting pipe 322 and the lower pin insertion port connecting pipe 332 may be connected such that the opposing ends are in close contact and airtight when the upper case body 321 and the lower case body 331 are joined.

[0152] The extension part insertion port connecting pipe can include an upper extension part insertion port connecting pipe 323 formed inside the upper case main body 321 and a lower extension part insertion port connecting pipe 333 formed inside the lower case main body 331.

[0153] The upper extension part insertion port connecting pipe 323 and the lower extension part insertion port connecting pipe 333 can be connected such that their opposing ends are in close contact and airtight when the upper case main body 321 and the lower case main body 331 are joined.

[0154] On the other hand, a terminal mounting part 335 for mounting the energization terminal member 350 can be formed inside the rotating case 310.

[0155] The terminal mounting part 335 can form a passage through which the connecting part 353 passes. The terminal mounting part 335 can be formed by being cut open into a shape corresponding to the shape of the connecting part 353.

[0156] As an example, the terminal mounting part 335 may be formed by being recessed at a position on the upper surface of the lower rotating case 330 where the connecting part 353 is disposed.

[0157] Specifically, the terminal mounting part 335 can be formed by being recessed on the upper surface of the circumferential surface of the lower pin insertion port connecting pipe 332 and the lower case main body 331.

[0158] The energization terminal member 350 can be inserted and mounted on the terminal mounting part 335 in a state where the upper rotating case 320 and the lower rotating case 330 are separated.

[0159] Then, when the upper rotating case 320 and the lower rotating case 330 are joined, the energization terminal member 350 is fixedly coupled to the rotating case 310 and can rotate together with the rotating case 310.

[0160] And the clutch member 400 can be inserted and mounted into the extension insertion port 311 in a state where the upper rotating case 320 and the lower rotating case 330 are separated.

[0161] On the other hand, referring to FIGS. 7 to 8, the clutch member 400 can include a tubular clutch body 410 that is open at the top and bottom, an elastic member fixing portion 450 formed at the center of the clutch body 410, and a lower clutch portion 420 that protrudes from the inner peripheral surface of the clutch body 410.

[0162] The lower clutch portion 420 can include a rotating clutch portion 422 that protrudes inward at the lower part of the clutch body 410, and a restraining clutch portion 421 that protrudes inward at a position spaced upward from the rotating clutch portion 422.

[0163] The rotating clutch portion 422 can connect the clutch body 410 and the elastic member fixing portion 450.

[0164] The rotating clutch portion 422 can be composed of a plurality of rotating clutch vanes arranged radially with respect to the central axis of the clutch body 410.

[0165] The plurality of rotating clutch vanes can be formed such that their upper surfaces are inclined toward one rotation direction side of the clutch body 410.

[0166] And the restraining clutch portion 421 can be composed of a plurality of restraining clutch vanes arranged radially with respect to the central axis of the clutch body 41.

[0167] The plurality of restraining clutch vanes can be formed such that their upper surfaces are inclined toward one rotation direction side of the clutch body 410.

[0168] The clearance space between the plurality of restraining clutch vanes can be formed to a size through which the upper clutch protrusion 231 can pass.

[0169] The restraining clutch blades may be formed in a number less than that of the rotating clutch blades.

[0170] The rotating clutch blades can be disposed vertically below the restraining clutch blades and vertically below the region between the restraining clutch blades.

[0171] When the lifting plate 200 is lowered, the upper clutch portion 230 can be lowered inside the clutch body 410.

[0172] Then, the upper clutch protrusion 231 can pass through the space between the restraining clutch blades and contact the rotating clutch blades.

[0173] Then, the clutch member 400 can be rotated by a predetermined angle due to the contact between the upper clutch protrusion 231 and the inclined surface of the rotating clutch blades.

[0174] Due to the rotation of the clutch member 400 by a predetermined angle, the restraining clutch blades can be positioned vertically above the upper clutch protrusion 231.

[0175] Then, when the force pushing the lifting plate 200 is released, the upper clutch protrusion 231 contacts the lower surface of the restraining clutch blades and can be applied to and restrained by the restraining clutch blades. Accordingly, the lifting plate 200 can be restrained so as to prevent rising in the lowered state.

[0176] Then, when the lifting plate 200 is lowered again by the pushing force, the upper clutch protrusion 231 contacts the inclined surface of the rotating clutch blades, and the clutch member 400 can be rotated by a predetermined angle.

[0177] By rotating the clutch member 400 by a predetermined angle, a space between the restraint clutch wings can be positioned vertically above the upper clutch projection 231. Therefore, when the force pressing the lifting plate 200 is released, the lifting plate 200 is lifted to the initial position by releasing the restraint of the upper clutch projection 231, and the plug can be easily separated.

[0178] That is, the one-touch operation of the safety socket 1 can be implemented.

[0179] Hereinafter, with reference to the drawings, the overall operation of the safety socket according to an embodiment of the present invention will be described in detail.

[0180] FIG. 9 is a cross-sectional view of a safety socket showing a state in which a plug is mounted with the lifting plate lifted to the maximum according to an embodiment of the present invention.

[0181] FIG. 10 is a drawing showing a state in which the terminals are separated and powered off in the state of FIG. 9. FIG. 11 is a cross-sectional view of a safety socket showing a state in which the lifting plate is lowered with the plug mounted according to an embodiment of the present invention.

[0182] FIG. 12 is a drawing showing a state in which the terminals are contacted and powered on in the state of FIG. 11. FIG. 13 is a drawing showing a drainage path according to an embodiment of the present invention.

[0183] The pins of the plug can be inserted into the pin through-holes 211 of the lifting plate 200 by the user.

[0184] And the head of the plug can be brought into contact with the upper surface of the lifting plate 200.

[0185] At this time, the pins of the plug may be located outside the safety switch module 300.

[0186] And the rotating case 310 may be rotated to the initial state and positioned so that the pin insertion path is shielded.

[0187] And the energization terminal portion 352 of the energization terminal member 350 and the power supply terminal 700 may be in a state of being separated from each other and de-energized.

[0188] When an external force for pressing the plug downward is applied, the lifting plate 200 can be lowered.

[0189] And the pins of the plug can be brought into contact with the rotation guiding inclined surface 313 of the rotation case 310.

[0190] When the plug continues to be pushed downward while the pins of the plug are in contact with the rotation guiding inclined surface 313, the rotation case 310 can be rotated in the opening direction.

[0191] At this time, the rotation of the rotation case 310 can be guided by the coupling structure of the upper rotation guiding portion 315 and the lower rotation guiding portion 316, the upper rotation guiding portion coupling portion 106 and the lower rotation guiding portion coupling portion 107.

[0192] If the pins of the plug are not inserted properly or a foreign object such as chopsticks is inserted and only one of the two rotation guiding inclined surfaces 313 is pushed, a force is applied to one side of the rotation case 310. In this case, the rotation axis of the rotation case 310 is inclined, the friction between the rotation guiding portions 315, 316 and the rotation guiding portion coupling portions 106, 107 is increased, and the rotation of the rotation case 310 can be prevented. Therefore, the pin insertion path is not opened, energization is prevented, and safety can be greatly improved.

[0193] When the rotation of the rotation case 310 positions the pin insertion port 312 to correspond to the pin through hole 211, the pin insertion path can be opened.

[0194] And by the rotation of the rotation case 310 in the opening direction, the energization terminal portion 352 of the energization terminal member 350 and the power supply terminal 700 can be brought into contact with each other and energization can be performed.

[0195] And, with the pin insertion path being open, the lifting plate 200 can be lowered to the maximum by the applied force.

[0196] And, the plug pin can be in a state of being inserted into the pin insertion port 312 to the maximum.

[0197] With the plug pin being inserted to the maximum, the plug pin can be brought into contact with the pin contact terminal portion 351 to be energized.

[0198] And, the upper clutch portion 230 can be in a state of being restrained by the clutch member 400. Accordingly, the upward movement of the lifting plate 200 can be restrained.

[0199] And, the switch elastic member 500 can be in a state of being elastically deformed to apply a force in the shielding direction to the rotating case 310.

[0200] And, the support elastic member 600 can be in a state of being elastically deformed to apply a force in the upward direction to the lifting plate 200.

[0201] And, the guide portion 240 of the lifting plate 200 can be in a state of being inserted into the pin insertion port 312.

[0202] When the guide portion 240 is inserted into the pin insertion port 312, the rotation of the rotating case 310 can be restrained, and the liquid flowing in through the pin through-hole 211 can be stably guided to the pin insertion port 312, more effectively preventing an electric shock accident.

[0203] On the other hand, when the rotating case 310 is not rotated in the opening direction, the pin insertion port 312 is not vertically aligned with the guide portion 240, so that unnecessary lowering of the lifting plate 200 can be prevented by the interference between the guide portion 240 and the upper surface of the rotating case 310.

[0204] On the other hand, when the plug is pushed again in the state where the plug is completely inserted, the lifting plate 200 can be pushed again.

[0205] And when the lifting plate 200 is pushed again, the clutch member 400 can rotate by a predetermined angle in conjunction with the upper clutch part 230.

[0206] And the upward restraint of the lifting plate 200 can be released.

[0207] And when the upward restraint of the lifting plate 200 is released, the lifting plate 200 can be lifted to the initial position by the elastic restoring force of the support elastic member 600.

[0208] And when the lifting plate 200 is lifted, the pin of the plug can be pulled out from the rotating case 310.

[0209] And the rotating case 310 can be rotated in the shielding direction by the elastic restoring force of the switch elastic member 500.

[0210] And when the rotating case 310 is rotated in the shielding direction, the contact between the power supply terminal 700 and the energizing terminal member 350 is released, and power-off can be performed.

Claims

1. A housing assembly having a pin through-hole into which a plug pin is inserted upward and having a module placement space formed therein that communicates with the pin through-hole; A safety switch module disposed in the module placement space and rotated in one direction by contact with and pressure applied to the plug pin to open the insertion path of the plug pin; A switch elastic member that provides an elastic force so that the safety switch module is rotated in the other direction to shield the insertion path; and A power supply terminal disposed inside the housing assembly outside the safety switch module and connected to an external power supply; comprising The safety switch module has a pin insertion opening into which a plug pin is inserted and opened upward, a rotation guiding inclined surface that contacts the pin insertion opening is formed on the upper surface, and the rotation guiding inclined surface is initially positioned so as to correspond to the pin through-hole. When the plug pin contacts and presses the rotation guiding inclined surface, the rotation case is rotated in one direction so that the pin insertion opening is positioned to correspond to the pin through-hole; is coupled to the rotation case and rotated together with the rotation case, one end is positioned inside the pin insertion opening and contacts the inserted plug pin, penetrates the side wall of the rotation case, and the other end is positioned outside the rotation case and is contacted with the power supply terminal when the rotation case rotates in one direction to be energized; a power supply terminal member; A safety socket having a switch function, characterized in that it comprises.

2. On the upper and lower surfaces of the rotation case, rotation guiding portions protruding along the edges are formed, On the upper surface and the bottom surface of the module placement space, rotation guiding portion coupling portions that are coupled to the rotation guiding portions are formed, One of the rotation guiding portion and the rotation guiding portion coupling portion is formed in a circular ring-shaped groove, and the other one is formed in a circular ring-shaped protrusion inserted into the groove. The safety socket having a switch function according to claim 1.

3. The pin insertion openings are formed through the rotation case vertically and a plurality of them are formed corresponding to the number of pins of the plug, A plurality of the power supply terminal members are provided corresponding to the plurality of the pin insertion openings, Below the rotation case inside the housing assembly, a plurality of drainage channels partitioned from each other are formed, The plurality of pin insertion openings communicate with different drainage channels respectively. The plurality of the drainage channels open to the outside in different directions at the lower part of the housing assembly so that the liquids flowing into the different pin insertion openings do not contact each other. The safety socket having a switch function according to claim 1, characterized in that.

4. The housing assembly includes a housing in which a lifting space opened upward is formed, and a module arrangement space is formed below the lifting space; and a lifting plate that is provided in the lifting space so as to be liftable, and is pushed down by a plug when the plug is inserted, and a pin through hole is formed. including An elastic support member that elastically supports the lifting plate inside the housing and is elastically deformed when the lifting plate descends to provide an upward restoring force to the lifting plate is included. The safety socket having a switch function according to claim 1, characterized in that.

5. The lifting plate includes a plate-shaped lifting plate main body portion through which the pin through hole penetrates; an extension portion extending downward at the center of the lower surface of the lifting plate main body portion; and an upper clutch portion formed at the lower portion of the extension portion for one-touch operation of the lifting plate. including An extension portion insertion opening into which the extension portion is inserted when the lifting plate descends is formed at the center of the rotating case. The extension portion insertion opening is provided with a clutch member that interlocks with the upper clutch portion for one-touch operation of the lifting plate and repeatedly restrains and releases the upper clutch portion by repeatedly pressing the lifting plate. The safety socket having a switch function according to claim 4, characterized in that.

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