Safety outlet 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 outlet with a switch function. [Background technology]

[0002] 2. Description of the Related Art Generally, when electricity is used indoors, such as in a home or office, or outdoors, such as at an outdoor work site, electricity is supplied by inserting a plug into an outlet installed on a wall or in a multi-outlet.

[0003] The outlets include general outlets that can be used by inserting an electric plug into any place where electricity is used, such as inside a building, on an exterior wall, on a ship, a train, or an airplane, and outlets that can be used by inserting an electric plug into a multi-tap or the like.

[0004] In most cases, conventional outlets have a plug pin insertion port that is always open and exposed to the outside, making it easy for various foreign objects to penetrate into the interior. That is, when the outlet is used in a damp or humid place, water or moisture can penetrate into the interior of the outlet, causing accidents such as short circuits or electric shocks. In addition, there have been many safety accidents caused by metal objects being inserted into the holes where the plug pins are inserted.

[0005] Recently, in order to improve the problems of conventional outlets, safety-enhanced outlets have been developed that have a pin insertion opening that opens when a plug is inserted, or that have a waterproof function.

[0006] Korean Patent Publication No. 10-2005-0113133, a prior art document, discloses a safety outlet in which a pin insertion opening is opened when a plug is inserted and which has a waterproof function.

[0007] However, in the case of the socket of the prior art, since the socket is structured so that electricity is passed even when a metallic foreign object is inserted into the pin insertion hole, there is still a problem that it is not possible to prevent an electric shock accident due to the insertion of a foreign object.

[0008] Furthermore, in the case of the outlets of the prior art, if the pin insertion port is opened due to the insertion of a metal foreign object or if the shielding member that shields the pin insertion port malfunctions and the pin insertion port is left open, water may flow into the pin insertion port, and the water may not be effectively discharged, which may result in a short circuit.

[0009] Therefore, there is a need for a new concept safety outlet that can prevent electric shock accidents caused by the insertion of metal foreign objects and can effectively prevent accidents such as short circuits even if liquid is introduced into the interior through the pin insertion port. Summary of the Invention [Problem to be solved by the invention]

[0010] SUMMARY OF THE INVENTION An object of the present invention is to provide a safety outlet having a switch function that is provided so that electricity is supplied only when a plug is inserted, thereby ensuring safety.

[0011] SUMMARY OF THE INVENTION An object of the present invention is to provide a safety outlet having a switch function, in which the components for providing the safety function are modularized, and which has a simple structure and is easy to manufacture.

[0012] SUMMARY OF THE INVENTION An object of the present invention is to provide a safety outlet having a switch function that can discharge liquid that has entered the outlet, thereby preventing short circuits or electric shock. [Means for solving the problem]

[0013] A safety outlet with a switching function according to an embodiment of the present invention includes a housing assembly having a pin through hole formed therein, into which a plug pin is inserted from above, and a module arrangement space formed therein that communicates with the pin through hole; a safety switch module disposed in the module arrangement space and rotated in one direction by contact with and pressure applied to a plug pin, thereby opening an insertion path for the plug pin; a switch elastic member that provides elastic force so that the safety switch module rotates in another direction to close the insertion path; and a power terminal disposed outside the safety switch module within the housing assembly and connected to an external power source; wherein the safety switch module is configured to rotate in one direction when a plug pin is inserted. a rotating case having a pin insertion opening that opens upward and a rotation guide inclined surface that is in contact with the pin insertion opening on its top surface, the rotation guide inclined surface being initially positioned to correspond to the pin through-hole, and which rotates in one direction as a plug pin comes into contact with and presses against the rotation guide inclined surface, so that the pin insertion opening is positioned to correspond to the pin through-hole; and a current-carrying terminal member that is coupled to the rotating case and rotates together with the rotating case, one end of which is positioned inside the pin insertion opening to contact the inserted plug pin, the other end of which passes through a side wall of the rotating case and is positioned outside the rotating case, and which comes into contact with the power terminal when the rotating case rotates in one direction to energize it.

[0014] The rotating case has rotation guide portions protruding along its edges on its upper and lower surfaces, and the module arrangement space has rotation guide portion coupling portions on its upper and bottom surfaces that couple with the rotation guide portions, one of the rotation guide portions and the rotation guide portion coupling portions being formed as a circular ring-shaped groove and the other being formed as a circular ring-shaped protrusion that is inserted into the groove.

[0015] The pin insertion holes are formed vertically through the rotating case, and a plurality of the pin insertion holes are formed corresponding to the number of pins of the plug. A plurality of the conductive terminal members are provided corresponding to the plurality of pin insertion holes. A plurality of drainage channels separated from one another are formed below the rotating case within the housing combination, and the plurality of pin insertion holes are connected to different drainage channels, and the plurality of drainage channels open to the outside in different directions at the bottom of the housing combination so that liquids flowing into the different pin insertion holes do not come into contact with each other.

[0016] The housing assembly includes: a housing in which an upwardly opening lift space is formed, and the module arrangement space is formed below the lift space; and a lift plate that is provided in the lift space so as to be able to move up and down, is pushed down by the plug when the plug is attached, and has the pin through-holes formed therein; and an elastic support member that elastically supports the lift plate inside the housing, is elastically deformed when the lift plate is lowered, and provides the lift plate with an upward restoring force.

[0017] The lifting plate includes a plate-shaped lifting plate main body through which the pin through-hole is formed; an extension extending downward from the center of the underside of the lifting plate main body; and an upper clutch portion formed at the bottom of the extension portion for one-touch operation of the lifting plate. An extension insertion port into which the extension portion is inserted when the lifting plate is lowered is formed at the center of the rotating case, and the extension insertion port is provided with a clutch member that, in conjunction with the upper clutch portion, repeatedly restricts and releases the upper clutch portion by repeatedly pressing the lifting plate for one-touch operation of the lifting plate. [Effects of the Invention]

[0018] The safety outlet 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, the safety switch module rotates in one direction by contacting and applying pressure to the plug pin to open the insertion path of the plug pin, and when it rotates in one direction, the current-carrying terminal member that comes into contact with the plug pin contacts the power terminal to allow current to flow.This prevents the insertion of foreign objects and allows current to flow only when the plug is properly inserted, greatly improving safety.

[0020] The safety switch module is comprised of a single module that simultaneously provides both a shutter function and an energizing switch function, including a rotating case having a pin insertion opening formed therein and that rotates when it comes into contact with a plug pin, and an energizing terminal member that is coupled to the rotating case and rotates together with the rotating case, with one end positioned in the pin insertion opening and coming into contact with the inserted plug pin. This eliminates the need for separate components to implement the shutter function and the energizing switch function, and simplifies the connection structure with the housing. This makes assembly and manufacturing easier, and the simplified structure significantly reduces the risk of malfunction.

[0021] The housing has a plurality of drainage channels formed in the lower portion thereof, each channel communicating with a different pin insertion port, and the drainage channels are open to the outside in different directions. Therefore, even if liquid flows in from the outside through the pin insertion port, the liquids do not come into contact with each other, effectively preventing short circuits caused by the flow of electricity through the liquid. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a perspective view of a safety outlet according to an embodiment of the present invention; [Figure 2] 1 is an exploded perspective view of a safety outlet according to an embodiment of the present invention; [Figure 3] 1 is a cross-sectional view of a safety outlet according to an embodiment of the present invention. [Figure 4] 10 is a view showing a drainage channel of a lower housing according to an embodiment of the present invention; [Figure 5] 1 is an exploded perspective view of a safety switch module according to an embodiment of the present invention; [Figure 6] 1 is a cross-sectional view of a safety switch module according to an embodiment of the present invention. [Figure 7] 2 is a cross-sectional view of a clutch member according to an embodiment of the present invention. [Figure 8] FIG. 2 is a plan view of a clutch member according to an embodiment of the present invention. [Figure 9] 1 is a cross-sectional view of a safety outlet showing a state in which a lift plate is fully raised and a plug is attached according to an embodiment of the present invention; [Figure 10] 10 is a diagram showing a state in which the terminals are separated from each other and power is cut off from the state shown in FIG. 9; [Figure 11] 1 is a cross-sectional view of a safety outlet according to an embodiment of the present invention, showing a state in which a lifting plate is lowered with a plug attached thereto. [Figure 12] 12 is a view showing a state in which the terminals are contacted and electricity is applied in the state of FIG. 11. [Figure 13] 1 is a view showing a drainage path according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the concept of the present invention is not limited to the illustrated embodiment, and other inventions or embodiments within the concept of the present invention can be easily proposed by adding, changing, or deleting other components.

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

[0025] Figure 2 is an exploded perspective view of a safety outlet according to an embodiment of the present invention, and Figure 3 is a cross-sectional view of the safety outlet according to an embodiment of the present invention.

[0026] 4 is a view showing a drainage channel of a lower housing according to an embodiment of the present invention, and FIG 5 is an exploded perspective view of a 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] FIG. 8 is a plan view of a clutch member according to an embodiment of the present invention.

[0029] The safety outlet of the present invention is a concept that includes all general outlets that are embedded in the interior and exterior walls of buildings, or installed in all places where electricity is used, such as on vehicles such as automobiles, passenger ships, trains, and airplanes, as well as outlets installed in multi-tap sockets used to overcome the limited distance of electricity supply.

[0030] For the sake of convenience, the present invention will be described with reference to a safety outlet having one plug receiving portion for receiving one plug, but the present invention is not limited thereto, and multiple plug receiving portions may be formed for receiving multiple plugs. When multiple plug receiving portions are formed, the internal structure of the safety outlet, which will be described later, will be multiple correspondingly and may be configured to perform the same function.

[0031] The plug 2 may be formed to have a head formed to be grippable by a person, and a plurality of pins protruding from the head and separated by polarity.

[0032] The safety outlet 1 with a switching function (hereinafter referred to as the "safety outlet") according to an embodiment of the present invention can be configured so that electricity is supplied when the plug 2 is fully inserted into the plug insertion portion 101.

[0033] The safety outlet 1 according to an embodiment of the present invention may be configured to allow the plug 2 to be inserted and attached, and may be configured to have a one-touch function in which the plug 2 is automatically detached by pressing the plug 2 after it has been inserted and attached.

[0034] The safety outlet 1 according to the embodiment of the present invention may 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 housing 100 and the lift plate 200 may form the outer shape of the safety outlet 1, and the housing 100 and the lift plate 200 may be referred to as a housing combination.

[0036] The housing 100 may form an internal space in which the lift 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 are accommodated.

[0037] The housing 100 may have a plug mounting portion 101 to which the plug 2 is mounted.

[0038] The plug mounting part 101 may be formed on one side of the housing 100 in a recessed shape inside the housing 100 so that the plug 2 can be inserted and mounted.

[0039] For example, the plug receiving part 101 may be recessed downward from the upper surface of the housing 100 .

[0040] The interior space of the housing 100 may include an elevation space 102 and a module placement space 103 .

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

[0042] The module placement space 103 may be formed below the lift space 102 and may be in communication with the lift space 102 .

[0043] The lift plate 200 may include a lift plate body 210 , an extension 220 , an upper clutch 230 , and a guide 240 .

[0044] The lifting plate body 210 may be configured to cover the lifting space 102 and to be lifted and lowered within the lifting space 102 .

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

[0046] The lift plate body 210 may have pin through-holes 211 formed therethrough in the vertical direction, through which pins of a plug may pass.

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

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

[0049] The upper clutch part 230 is for one-touch operation of the lift plate 200 and may be configured to be interlocked with the lower clutch part 420, which will be described later.

[0050] The upper clutch portion 230 may be formed at a lower portion of the extension portion 220. For example, the upper clutch portion 230 may be composed of a pair of upper clutch protrusions 231 protruding outward from the lower edge of the extension portion 220.

[0051] The guide part 240 may be formed by extending downward from the lower surface of the lifting plate body part 210, and may be formed in a hollow tubular shape.

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

[0053] That is, the guide portion 240 may be formed in a tubular shape extending downward from the edge of the pin through-hole 211 .

[0054] Meanwhile, the lift plate 200 and the housing 100 may be provided with elements for smooth lifting and preventing rotation of the lift plate 200.

[0055] For example, the lifting plate main body 210 may have a guide protrusion 215 protruding outward, and correspondingly, the inner surface of the plug mounting portion 101 may have a recessed guide rail 105 into which the guide protrusion 215 is inserted.

[0056] The guide rail 105 may be formed to extend vertically in accordance with the movement path of the guide protrusion 215 when the lifting plate body 210 is lifted or lowered.

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

[0058] Meanwhile, the safety switch module 300 may be configured to perform the 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 upon contact with the normally inserted plug pin.

[0060] The safety switch module 300 may be configured to provide a switching function that rotates the entire module by contacting a plug pin, thereby energizing the plug.

[0061] The safety switch module 300 may include a rotating case 310 and a current-carrying terminal member 350 .

[0062] The rotating case 310 may be formed in a cylindrical shape with a plurality of insertion holes extending downward from the upper surface.

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

[0064] The rotating case 310 may have an extension insertion hole 311 into which the extension 220 is inserted and a pin insertion hole 312 into which a pin of a plug is inserted.

[0065] The pin insertion holes 312 may be formed in a plurality of numbers corresponding to the number of pins of the plug.

[0066] For convenience of explanation, the following detailed description will be given by taking as an example a safety socket 1 which is adapted to a plug having two pins and has two pin insertion holes 312.

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

[0068] The two pin insertion holes 312 can be separately named a first pin insertion hole and a second pin insertion hole.

[0069] The extension insertion hole 311 and the two pin insertion holes 312 may be completely partitioned to be airtight.

[0070] The extension insertion hole 311 and the two pin insertion holes 312 may be formed to penetrate vertically for drainage.

[0071] The pin insertion hole 312 may be formed to have an inner periphery corresponding to the outer periphery of the guide part 240 so that the guide part 240 can be inserted when the lift plate 200 is lowered.

[0072] A rotation guiding inclined surface 313 may be formed on an upper surface of the rotating case 310. The rotation guiding inclined surface 313 may be formed in contact with the pin insertion opening 312. When a direction in which the rotating case 310 rotates to open the insertion path of the plug pin is defined as an opening direction and a direction in which the rotating case 310 rotates to block the insertion path of the plug pin is defined as a blocking direction, the rotation guiding inclined surface 313 may be formed to be disposed on the opening direction side of the pin insertion opening 312.

[0073] The rotating case 310 may have rotation guides formed on its upper and lower surfaces to guide the rotation of the rotating case 310 .

[0074] In detail, an upper rotation guide portion 315 protruding upward may be formed on the edge of the upper surface of the rotation case 310 .

[0075] A lower rotation guide portion 316 protruding upward may be formed on the lower edge of the rotation case 310 .

[0076] The upper rotation guide portion 315 and the lower rotation guide portion 316 may be formed by protruding from the entire upper and lower edges of the rotating case 310. In this case, the upper rotation guide portion 315 and the lower rotation guide portion 316 may have a ring shape placed on the upper and lower edges of the rotating case 310.

[0077] Meanwhile, a rotation guide portion coupling portion to which the rotation guide portion is coupled may be formed at a position corresponding to the rotation guide portion inside the housing 100.

[0078] In detail, the upper surface of the module arrangement space 103 of the housing 100 may be formed to face and contact the upper edge of the rotating case 310 .

[0079] The bottom surface of the module placement space 103 of the housing 100 may be formed to face and contact the lower surface of the rotating case 310 .

[0080] An upper rotation guide coupling portion 106 into which the upper rotation guide portion 315 is inserted may be formed on an upper surface of the module placement space 103 .

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

[0082] A lower rotation guide coupling portion 107 into which the lower rotation guide portion 316 is inserted may be formed on the bottom surface of the module placement space 103 .

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

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

[0085] When the rotating case 310 rotates, the rotation guide moves along the rotation guide joint, so that the rotating case 310 can be rotatable based on an imaginary vertical axis formed at the center.

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

[0087] Meanwhile, the electrical terminal member 350 may include a pin contact terminal portion 351 , an electrical terminal portion 352 , and a connecting portion 353 .

[0088] The number of the electrical terminal members 350 may be two, for example, corresponding to the number of plug pins.

[0089] Two current-carrying terminal members 350 may be provided so as to correspond to one pin insertion hole 312, respectively.

[0090] The two current-carrying terminal members 350 may be divided into a first current-carrying terminal member provided corresponding to the first pin insertion hole and a second current-carrying terminal member provided corresponding to the second pin insertion hole and named accordingly.

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

[0092] The electrical terminal portion 352 may be disposed outside the rotating case 310. The connecting portion 353 may be configured to penetrate the outer wall of the rotating case 310 and the inner wall of the pin insertion hole 312 to electrically connect the electrical terminal portion 352 and the rotating case 310.

[0093] The connecting portion 353 between the pin contact terminal portion 351 and the current-carrying terminal portion 352 may be made of a conductor and may be integrally formed.

[0094] The pin contact terminal portion 351 does not contact the plug pin when the lift plate 200 is in the initial state where it is fully raised, but when the lift plate 200 is in the fully lowered state, it can be positioned at a height where it can contact the plug pin that is properly inserted.

[0095] Meanwhile, the clutch member 400 may be disposed inside the extension insertion hole 311 .

[0096] The clutch member 400 may be provided rotatably about an imaginary vertical axis formed at the center inside the extension insertion hole 311 .

[0097] The extension insertion hole 311 may be formed to penetrate vertically, and the upper and lower ends may be formed to have a step on the inside. That is, the inner circumferences of the upper and lower ends of the extension insertion hole 311 may be narrower than the inner circumference of the center where the clutch member 400 is disposed.

[0098] The clutch member 400 may be formed to have an outer periphery corresponding to the inner periphery of the center of the extension insertion hole 311 .

[0099] Therefore, the clutch member 400 may be provided in the extension insertion hole 311 while being constrained to prevent vertical movement, and may be provided rotatably about a central vertical axis.

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

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

[0102] A lower clutch part 420 interlocked with the upper clutch part 230 may be formed inside the clutch member 400 for one-touch operation of the lift plate 200 .

[0103] Meanwhile, the switch elastic member 500 can provide a function of restoring the rotating case 310 to its initial state.

[0104] At this time, the initial state of the rotating case 310 can be defined as a state in which the rotation guide inclined surface 313 is positioned to correspond to the pin through hole 211 and is rotated to block the insertion path of the plug pin.

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

[0106] At this time, when the rotating case 310 rotates in the opening direction, the pin insertion opening 312 is positioned to correspond to the pin through opening 211, thereby opening the insertion path of the plug pin. Thus, the plug pin can be inserted into the pin insertion opening 312 and come into contact with the pin contact terminal portion 351 positioned inside the pin insertion opening 312.

[0107] The switch elastic member 500 is elastically deformed when the rotating case 310 rotates in the opening direction, and can apply a rotational force to rotate the rotating case 310 in the closing direction opposite to the opening direction.

[0108] For example, the switch elastic member 500 may be a compression coil spring.

[0109] The switch elastic member 500 may have one end fixed to the rotating case 310 and the other end connected to the housing 100 so as to be elastically deformed when the switch elastic member 500 rotates in the opening direction.

[0110] Meanwhile, the elastic support member 600 may provide a function of restoring the lift plate 200 to its initial state in which it is positioned at the upper end of the lift space 102 .

[0111] For example, a compression coil spring may be used as the elastic support member 600. The elastic support member 600 is provided between the lift plate 200 and the clutch member 400, and is compressed when the lift plate 200 descends, thereby applying an upward force to the lift plate 200.

[0112] When the lift plate 200 is released from the state in which it is lowered by the elastic support of the elastic support member 600, it returns to its initial state, so that the plug can be easily removed.

[0113] The lift plate 200 is lifted to the maximum by the elastic support of the elastic support member 600, and can maintain its initial state.

[0114] In detail, the extension portion 220 may have a recessed elastic member insertion groove 225 formed at the center thereof so that the elastic support member 600 can be inserted therein.

[0115] An elastic member fixing portion 450 may be formed inside the clutch member 400, protruding from the center of the bottom surface to fix the lower portion of the support elastic member 600 and to be inserted into the elastic member insertion groove when the lifting plate 200 descends.

[0116] Meanwhile, the power terminal 700 is provided inside the housing 100 and can be electrically connected to an external power source.

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

[0118] The first power terminal 710 and the second power terminal 720 may be disposed outside the rotating case 310 .

[0119] The power terminals 700 may be provided to selectively come into contact with the corresponding power terminal members 350 along the rotation direction of the case 310 .

[0120] For example, the first power terminal 710 may be disposed so as to come into contact with the current-carrying terminal portion 352 of the first current-carrying terminal member when the rotating case 310 rotates in the opening direction, and to be spaced apart from the current-carrying terminal portion 352 of the first current-carrying terminal member when the rotating case 310 rotates in the closing direction. That is, the first power terminal 710 may be positioned on a movement path of the corresponding current-carrying terminal member 350 caused by the rotation of the rotating case 310 in the opening direction.

[0121] The second power terminal 720 may be disposed so as to come into contact with the current-carrying terminal portion 352 of the second current-carrying terminal member when the rotating case 310 rotates in the opening direction, and to be spaced apart from the current-carrying terminal portion 352 of the second current-carrying terminal member when the rotating case 310 rotates in the closing direction. That is, the second power terminal 720 may be positioned on a movement path of the corresponding current-carrying terminal member 350 caused by the rotation of the rotating case 310 in the opening direction.

[0122] Meanwhile, a drainage passage 121 may be formed below the module placement space 103 in the housing 100 .

[0123] The drainage passage 121 may be formed in a plurality of parts corresponding to the pin insertion hole 312 and the extension insertion hole 311 .

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

[0125] The plurality of drainage channels 121 may be partitioned from one another to prevent liquid from flowing between them.

[0126] A plurality of drain holes 122 may be formed on the bottom surface of the module placement space 103 to communicate the pin insertion holes 312 and the extension insertion holes 311 with the corresponding drain passages 121 .

[0127] The plurality of drain holes 122 may be divided into a first drain hole that is formed by opening vertically below the first pin insertion port and is connected to the first drain flow path, a second drain hole that is formed by opening vertically below the second pin insertion port and is connected to the second drain flow path, and a third drain hole that is formed by opening vertically below the extension insertion port 311 and is connected to the third drain flow path.

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

[0129] The plurality of drainage channels 121 may be formed to open in different directions from each other at the lower edge of the housing 100, and may be formed to drain liquid in different directions from each other.

[0130] Therefore, liquid flowing into the extension insertion port 311 and the plurality of pin insertion ports 312 can be discharged along the corresponding drainage channels to the outside of the safety outlet 1. At this time, the liquids flowing into the extension insertion port 311 and the plurality of pin insertion ports 312 are discharged in different directions along the drainage channels without coming into contact with each other, thereby effectively preventing electric shock accidents due to current flow.

[0131] Meanwhile, referring to FIGS. 3 and 4, the housing 110 may be formed by combining an upper housing 110 and a lower housing 120 together.

[0132] The plug mounting portion 101 , the lifting space 102 , and the module placement space 103 may be formed in the upper housing 110 .

[0133] The lower housing 120 may form a lower portion of the housing 110, and may form a bottom surface of the module placement space by the lower housing 120.

[0134] The drain passage 121 may be formed inside the lower housing 120 , and the drain hole 122 may be formed to open on the upper surface of the lower housing 120 .

[0135] The lower rotation guide coupling part 107 may be formed on the upper surface of the lower housing 120 .

[0136] When the upper housing 110 and the lower housing 120 are separated, the module arrangement space 103 can be opened downward, and the safety switch module 300 can be inserted and installed into the module arrangement space 103.

[0137] By connecting the lower housing 120 to the upper housing 110, the lower side of the module placement space 103 is shielded, and the lower rotation guide part 316 can be connected to the lower rotation guide part connection part 107.

[0138] Meanwhile, referring to FIGS. 5 and 6, the rotating case 310 may be formed by combining an upper rotating case 320 and a lower rotating case 330.

[0139] The upper rotating case 320 may form an upper portion of the rotating case 310 .

[0140] The lower rotating case 330 may form the lower part of the rotating case 310 .

[0141] The upper and lower rotating cases 320 and 330 may be connected to each other by adhesive, fusion, a hook connection structure, or the like.

[0142] For example, the upper rotating case 320 may include a cylindrical upper case body 321 that is open downward.

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

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

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

[0146] An upper surface of the upper case body 321 may have upper openings of the pin insertion hole 312 and the extension insertion hole 311 formed thereon.

[0147] The lower surface of the lower case body 331 may have lower openings of the pin insertion hole 312 and the extension insertion hole 311 .

[0148] A pin insertion port connecting pipe connecting the upper and lower openings of the pin insertion port 312 and an extension insertion port connecting pipe connecting the upper and lower openings of the extension insertion port 311 may be formed inside the rotating case 310.

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

[0150] In detail, 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 their opposing ends are tightly fitted together and airtight when the upper case body 321 and the lower case body 331 are combined.

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

[0153] The upper extension portion insertion port connecting pipe 323 and the lower extension portion insertion port connecting pipe 333 may be connected such that their opposing ends are tightly fitted together and airtight when the upper case body 321 and the lower case body 331 are combined.

[0154] Meanwhile, a terminal mounting portion 335 to which the electrical terminal member 350 is mounted may be formed inside the rotating case 310 .

[0155] The terminal mounting portion 335 may have a passage through which the connecting portion 353 passes. The terminal mounting portion 335 may be cut into a shape corresponding to the shape of the connecting portion 353.

[0156] For example, the terminal mounting portion 335 may be recessed at a position where the connecting portion 353 is disposed on the upper surface of the lower rotating case 330 .

[0157] In detail, the terminal mounting portion 335 may be recessed on the upper surface of the lower pin insertion port connecting pipe 332 and the circumferential surface of the lower case body 331 .

[0158] The electrical terminal member 350 may be inserted into the terminal mounting portion 335 when the upper and lower rotating cases 320 and 330 are separated from each other.

[0159] The electrical terminal member 350 is fixedly coupled to the rotating case 310 when the upper rotating case 320 and the lower rotating case 330 are coupled together, and is rotatable together with the rotating case 310 .

[0160] The clutch member 400 may be inserted into the extension insertion hole 311 when the upper and lower rotating cases 320 and 330 are separated from each other.

[0161] Meanwhile, referring to Figures 7 and 8, the clutch member 400 may include a tubular clutch body 410 that is open at the top and bottom, the elastic member fixing portion 450 formed at the center of the clutch body 410, and the lower clutch portion 420 that protrudes from the inner surface of the clutch body 410.

[0162] The lower clutch part 420 may include a rotation clutch part 422 protruding inward from the lower part of the clutch body 410, and a restraint clutch part 421 protruding inward from a position spaced upward from the rotation clutch part 422.

[0163] The rotary clutch part 422 may connect the clutch body 410 and the elastic member fixing part 450 .

[0164] The rotary clutch part 422 may be composed of a plurality of rotary clutch blades arranged radially with respect to the central axis of the clutch body 410 .

[0165] The upper surfaces of the plurality of rotary clutch wings may be formed to be inclined toward one rotation direction of the clutch body 410 .

[0166] The locking clutch portion 421 may be composed of a plurality of locking clutch blades arranged radially with respect to the central axis of the clutch body 41 .

[0167] The plurality of locking clutch wings may be formed such that the upper surfaces thereof are inclined toward one rotation direction of the clutch body 410 .

[0168] The spacing spaces between the plurality of locking clutch wings may be formed to a size that allows the upper clutch protrusions 231 to pass through.

[0169] The number of the locking clutch vanes may be less than the number of the rotating clutch vanes.

[0170] The rotating clutch vanes may be positioned vertically below the captive clutch vanes and vertically below the areas between the captive clutch vanes.

[0171] When the lift plate 200 is lowered, the upper clutch part 230 may be lowered inside the clutch body 410 .

[0172] The upper clutch protrusion 231 can pass through the space between the locking clutch blades and come into contact with the rotating clutch blades.

[0173] The clutch member 400 can be rotated by a predetermined angle due to contact between the upper clutch protrusion 231 and the inclined surface of the rotary clutch blade.

[0174] By rotating the clutch member 400 by a predetermined angle, the locking clutch blades can be positioned vertically above the upper clutch protrusions 231 .

[0175] When the force pushing the lift plate 200 is released, the upper clutch protrusion 231 comes into contact with the lower surface of the locking clutch wing and is caught by the locking clutch wing, so that the lift plate 200 can be locked in a lowered state and prevented from rising.

[0176] When the lift plate 200 is lowered again by a pushing force, the upper clutch protrusion 231 and the inclined surface of the rotary clutch wing come into contact with each other, so that 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 locking clutch wings can be positioned vertically above the upper clutch protrusion 231. Therefore, when the force pushing the lifting plate 200 is released, the upper clutch protrusion 231 is released from the locking, and the lifting plate 200 is lifted to the initial position, allowing the plug to be easily separated.

[0178] That is, the safety outlet 1 can be operated with a single touch.

[0179] The overall operation of a safety outlet according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0180] FIG. 9 is a cross-sectional view of a safety outlet according to an embodiment of the present invention, showing a state in which a lift plate is fully raised and a plug is inserted.

[0181] Figure 10 is a view showing a state in which the terminals are separated and power is cut off from the state shown in Figure 9. Figure 11 is a cross-sectional view of the safety outlet showing a state in which the lift plate is lowered with a plug attached according to an embodiment of the present invention.

[0182] Figure 12 is a view showing a state in which the terminals are in contact with each other and electricity is applied in the state shown in Figure 11. Figure 13 is a view showing a drainage path according to an embodiment of the present invention.

[0183] The pin of the plug can be inserted into the pin through-hole 211 of the lift plate 200 by a user.

[0184] The head of the plug may then come into contact with the upper surface of the lift plate 200 .

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

[0186] The rotating case 310 may be rotated to an initial state, blocking the pin insertion path.

[0187] The current-carrying terminal portion 352 of the current-carrying terminal member 350 and the power terminal 700 may be separated from each other to be in a power-off state.

[0188] When an external force is applied to press the plug downward, the lift plate 200 can be lowered.

[0189] The pin of the plug can come into contact with the rotation guide inclined surface 313 of the rotating case 310 .

[0190] When the plug is continuously pressed downward with the pin of the plug in contact with the rotation guide inclined surface 313, the rotating case 310 can be rotated in the opening direction.

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

[0192] If the plug pin is not inserted properly or if a foreign object such as a chopstick is inserted and only one of the two rotation guide inclined surfaces 313 is pressed, a one-sided force is applied to the rotating case 310. In this case, the rotation axis of the rotating case 310 is inclined, and friction between the rotation guide parts 315 and 316 and the rotation guide part coupling parts 106 and 107 increases, preventing rotation of the rotating case 310. Therefore, the pin insertion path is not opened, preventing current flow and significantly improving safety.

[0193] When the pin insertion hole 312 is positioned to correspond to the pin through hole 211 by rotating the rotating case 310, the pin insertion path can be opened.

[0194] When the rotating case 310 is rotated in the opening direction, the current-carrying terminal portion 352 of the current-carrying terminal member 350 and the power terminal 700 come into contact with each other, thereby establishing a state of electrical conduction.

[0195] With the pin insertion path open, the lift plate 200 can be lowered to the maximum by the pushing force.

[0196] The pins of the plug can be inserted into the pin insertion holes 312 to the maximum extent.

[0197] When the pins of the plug are fully inserted, they contact the pin contact terminal portion 351 to be electrically connected.

[0198] The upper clutch part 230 may be in a state of being constrained by the clutch member 400. Therefore, the lifting of the lifting plate 200 may be in a state of being constrained.

[0199] The switch elastic member 500 may be elastically deformed to apply a force to the rotating case 310 in the closing direction.

[0200] The elastic support member 600 may be elastically deformed to apply a force to the lift plate 200 in an upward direction.

[0201] The guide portion 240 of the lift plate 200 may be inserted into the pin insertion hole 312 .

[0202] By inserting the guide portion 240 into the pin insertion hole 312, the rotation of the rotating case 310 can be restricted, and the liquid flowing in through the pin through hole 211 can be stably guided to the pin insertion hole 312, thereby more effectively preventing electric shock accidents.

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

[0204] Meanwhile, when the plug is pushed again after the plug is completely inserted, the lift plate 200 can be pushed again.

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

[0206] Then, the lifting restriction of the lift plate 200 can be released.

[0207] Then, as the lifting restriction of the lifting plate 200 is released, the lifting plate 200 can be lifted to its initial position by the elastic restoring force of the supporting elastic member 600 .

[0208] As the lift plate 200 is lifted, the pin of the plug can be pulled out from the rotary case 310 .

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

[0210] When the rotating case 310 is rotated in the shielding direction, the contact between the power terminal 700 and the current-carrying terminal member 350 is released, thereby cutting off the power.

Claims

1. a housing assembly in which pin through-holes into which plug pins are inserted from above are formed and in which a module arrangement space communicating with the pin through-holes is formed; a safety switch module disposed in the module arrangement space, which is rotated in one direction by contact with and pressure applied to the plug pin, thereby opening 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 another direction to block the insertion path; and a power terminal disposed outside the safety switch module within the housing assembly and connected to an external power source; Including, The safety switch module includes: a rotating case having a pin insertion opening formed upward and into which a plug pin is inserted, a rotation guide inclined surface formed on its top surface in contact with the pin insertion opening, the rotation guide inclined surface initially positioned to correspond to the pin through-hole, and which rotates in one direction as a result of contact and pressure between the plug pin and the rotation guide inclined surface, and the pin insertion opening is positioned to correspond to the pin through-hole; a current-carrying terminal member coupled to the rotatable case, rotated together with the rotatable case, one end of which is positioned inside the pin insertion opening to contact the inserted plug pin, which passes through a side wall of the rotatable case, and the other end of which is positioned outside the rotatable case to contact the power terminal when the rotatable case rotates in one direction, thereby conducting electricity; A safety outlet having a switch function, comprising:

2. The rotating case has rotation guide portions protruding along its edges on its upper and lower surfaces, A rotation guide coupling portion to be coupled with the rotation guide portion is formed on an upper surface and a bottom surface of the module arrangement space, 2. The safety outlet with a switch function according to claim 1, wherein one of the rotation guide portion and the rotation guide portion coupling portion is formed in a circular ring-shaped groove, and the other is formed in a circular ring-shaped protrusion inserted into the groove.

3. The pin insertion holes are formed vertically through the rotating case, and a plurality of the pin insertion holes are formed corresponding to the number of pins of the plug, a plurality of the current-carrying terminal members are provided corresponding to the plurality of pin insertion openings, A plurality of drainage passages are formed below the rotating case within the housing assembly, and are separated from one another. The plurality of pin insertion holes are respectively connected to different drainage channels, 2. The safety outlet with a switch function according to claim 1, wherein the drainage channels are opened to the outside in different directions at the bottom of the housing assembly so that liquids flowing into different pin insertion holes do not come into contact with each other.

4. The housing assembly includes: a housing in which an upwardly open lift space is formed, and the module arrangement space is formed below the lift space; and a lift plate provided in the lift space so as to be movable up and down, and which is pushed down by the plug when the plug is attached, and in which the pin through-hole is formed; Including, 2. The safety outlet with a switch function according to claim 1, further comprising a support elastic member that elastically supports the lift plate inside the housing and is elastically deformed when the lift plate descends to provide an upward restoring force to the lift plate.

5. The lifting plate is a plate-shaped lifting plate main body portion through which the pin through-holes are formed; an extension portion extending downward from the center of the lower surface of the lifting plate main body portion; and an upper clutch portion formed at a lower portion of the extension portion for one-touch operation of the lifting plate; Including, An extension insertion hole is formed at the center of the rotating case, into which the extension is inserted when the lifting plate is lowered, A safety outlet with a switch function as described in claim 4, characterized in that the extension insertion port is provided with a clutch member that works in conjunction with the upper clutch portion to allow one-touch operation of the lifting plate, and that repeatedly restricts and releases the upper clutch portion by repeatedly pressing the lifting plate.

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