KR101746278B1

KR101746278B1 - Dc socket-plug with interlock switch and method thereof

Info

Publication number: KR101746278B1
Application number: KR1020150112624A
Authority: KR
Inventors: 김효성
Original assignee: 공주대학교 산학협력단
Priority date: 2015-08-10
Filing date: 2015-08-10
Publication date: 2017-06-12
Also published as: KR20170018684A

Abstract

According to various embodiments of the present invention, an interlock switch-attached direct current outlet plug and method thereof are provided. According to one embodiment, an interlock switch-attachable DC outlet-plug includes a plug including a plug electrode and a pushing latch; A plug electrode is inserted into the receptacle electrode, and the cutoff contact portion is inserted into the receptacle electrode in accordance with the movement of the pushing latch, And an interlock switch section for connecting or disconnecting the interlock switch section.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a DC socket-

The present invention relates to an outlet-plug, and more particularly, to a direct-current outlet-plug with an interlock switch and a method thereof.

In recent years, due to the surge of digital products, the load of using DC has been increasing, and as the distributed generation technology of DC type such as renewable energy generation is spreading, interest in DC distribution is increasing.

DC power supply can eliminate power conversion (AC-DC) loss of 20% ~ 30%, and is compatible with renewable energy such as ultra high voltage DC transmission (HVDC), solar power, and fuel cell. Efforts to improve energy efficiency and supply high-quality electric power are continuing.

As there is no current zero in the DC current, there is a high probability of life and property loss due to fire caused by the arc current continuously generated when the current is zero. For example, when a plug and a socket used in a conventional AC are used in a direct current, a very large arc current is generated when the connection is disconnected, thereby causing an accident that the plug and the electrode of the socket are fused It occurs frequently. Also, the counter electromotive force generated in the inductive load is induced in the plug electrode to generate the arc voltage (Varc), which may threaten the safety of the user holding the plug. This is one of the important factors impeding the dissemination of DC distribution even though it has many advantages.

According to an embodiment of the present invention for solving the above-mentioned problems, there is provided a method of electrically connecting a DC breaker in series with a simple outlet-plug used in a conventional AC, And an outlet-plug configured to be synchronized with the mechanical interlock.

According to an embodiment of the present invention, an interlock switch type DC outlet plug is provided with a plug including a plug electrode and a pushing latch; And a plug contact portion to be connected or disconnected to supply or cut off the DC power to the plug, a receptacle electrode into which the plug electrode is inserted, and a plug electrode inserted into the receptacle electrode, And an outlet including an interlock switch portion for connecting or disconnecting the unit.

According to various embodiments, the interlock switch portion includes an outlet body to which the outlet electrode is attached, a first fixed pivot fixed to the outlet body,

A second fixed pivot including the first fixed pivot at one end and rotating about the first fixed pivot, a second fixed pivot coupled with the socket body, a second link pivoting about the second fixed pivot, A third link connected to the first link including a first mobile pivot at one end thereof and connected to the second link including a second mobile pivot at the other end thereof to connect the first link and the second link, A first slider link fixed to the socket body, and a third movable pivot moving along the groove formed in the first slider link.

According to various embodiments, the shut-off contact portion includes a fixed contact fixed to one surface of the socket body, and a first fixed pivot fixed to the socket body at one end, 1 link, wherein the first link is operable to contact or separate the moving contact from the stationary contact in accordance with movement of the pushing latch.

According to various embodiments, the interlock switch portion and the cutoff contact portion are disposed in parallel and arranged in parallel, and a pair of the third movement pivots in the pair of the interlock switch portions disposed in parallel, And the pair of third moving pivots can move together with the movement of the switch rod.

According to various embodiments, the switch rod can be controlled according to the movement of the pushing latch of the plug.

According to various embodiments, the interlock switch portion turns on the interrupting contact portion when the third moving pivot is located at one end of the groove formed in the first slider link, and the third moving pivot turns on the first slider link The blocking contact portion can be turned off.

According to various embodiments, the blocking contact portion may be arranged such that two arc-extinguishing magnets are arranged in a tandem shape in a direction perpendicular to the stationary contact and the movable contact.

According to various embodiments, the plug includes: a plug body to which the plug electrode is attached; A first slide guide and a second slide guide fixed to the plug body; A second slider link formed on the first slide guide and a third slider link formed on the second slide guide; A fourth moving pivot fixed to the pushing latch and moving along the groove formed in the second slider link and the third slider link; And a fixed pivot passing through the fourth slider link formed in the pushing latch and fixed across the first slide guide and the second slide guide; The pushing latch may be positioned between the first slide guide and the second slide guide.

According to various embodiments, the pusher may engage the interlock switch portion of the receptacle to move the fourth transfer pivot.

According to various embodiments, at least one of the first slide guide and the second slide guide may include a spring that applies a clockwise elastic force to the fourth movement pivot.

According to the embodiments of the present invention, it is possible to provide an outlet-plug and a method thereof in which the on-off operation of the breaker is synchronized with the mechanical interlock when the plug is inserted into and disconnected from the outlet, The contact of the combined breaker is always in the off state so that the plug can be safely removed and inserted in the state where the electricity is not pressurized to prevent the electrode of the outlet plug from being welded and damaged by the arc current, Thereby providing an energy use environment.

In addition, it is possible to provide the convenience of the user by structuring the switch of the circuit breaker to be automatically operated by the mechanical interlocking by the mechanical interlocking device when the plug is inserted and removed without the user needing to operate the switch of the circuit breaker intentionally .

Fig. 1 is a conceptual diagram of an electric circuit of an interlock switch-attaching direct current outlet plug according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram showing the arrangement of a magnet for arc-arc and a breaking contact of a DC breaker in an interlock switch according to an embodiment of the present invention.
3A and 3B illustrate a structural concept of an interlock switch according to an embodiment of the present invention.
4 shows a structural concept of an interlock switch composed of two poles in an outlet according to an embodiment of the present invention.
5 shows a concept of electrical connection between an interlock switch and a receptacle electrode according to an embodiment of the present invention.
FIGS. 6A, 6B and 6C are schematic cross-sectional views of a two-pole interlock switch and a receptacle electrode and / or receptacle in order to realize a mechanical interlock of a pushing latch scheme according to an embodiment of the present invention; do.
7A and 7B show a top view and a cross-sectional view of a plug designed to provide a plug and a latch for mechanically interlocking with an interlock switch installed inside the socket in a socket and plug according to an embodiment of the present invention.
FIG. 8 is a schematic view of a push latch installed in a groove portion of a plug according to an embodiment of the present invention. FIG.
9A and 9B are views showing the operation of the pushing latch and the slide guide in the pushing part according to the embodiment of the present invention.
10 shows an alignment state of a plug with an interlock switch-equipped receptacle, according to an embodiment of the present invention.
11 shows a peripheral structure of a switch bar installed in an interlock switch-equipped receptacle according to an embodiment of the present invention.
12A, 12B, 12C, and 12D illustrate mechanical interlocking operations driven when inserting a plug into an outlet according to an embodiment of the present invention.
Figures 13A, 13B, 13C, and 13D, 13E, and 13F illustrate mechanical interlocking operations that are driven when the plug is disconnected from the outlet in accordance with various embodiments of the present invention.
14A, 14B and 14C are diagrams illustrating the operation of separating the plug body from the receptacle according to various embodiments of the present invention.
15A, 15B, 15C, and 15D illustrate operation when the plug according to various embodiments of the present invention is disconnected from the outlet.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, it is to be understood that the invention is not limited to the specific embodiments thereof, And equivalents and alternatives falling within the spirit and scope of the invention. In order to clearly illustrate the present invention in the drawings, parts not related to the description may be omitted, and the same reference numerals may be used for the same or similar components throughout the specification.

In various embodiments of the present invention, expressions such as 'or', 'at least one', etc. may denote one of the words listed together, or may represent a combination of two or more. For example, 'A or B', 'At least one of A and B' may include only one of A or B, and may include both A and B.

In various embodiments of the present invention, expressions such as 'first', 'second', 'first', 'second', etc. may describe various components, but they must mean the order, . For example, the first device and the second device are both devices and may represent different devices. Also, unless the elements of the configuration, function, operation, etc. of the first device are the same as or similar to the second device, the first device can be named as the second device, without departing from the scope of the various embodiments of the present invention, Similarly, the second device may also be termed the first device.

In the various embodiments of the present invention, when an element is referred to as being "connected" or "connected" to another element, the elements may be directly connected or connected, It should be understood that there may be one and the same time. On the other hand, if an element is referred to as being 'directly connected' or 'directly connected' to another element, it should be understood that no other element exists between the elements.

The terms used in various embodiments of the present invention are intended to illustrate a specific embodiment and are not to be construed as limiting the invention, for example, the singular forms "a," "an, &Lt; / RTI >

It is to be understood that devices (or electronic devices) in accordance with various embodiments of the present invention may be replaced by other devices of the same or similar type, unless explicitly stated to the contrary, An electronic device may be comprised of one or more of the various devices described. For example, the device may be provided as a structure that includes at least a portion of the devices described, or at least some of the functionality of the device.

Hereinafter, an apparatus according to various embodiments will be described with reference to the accompanying drawings. When describing the term " user " in various embodiments, it may refer to an electronic device (e.g., an artificial intelligence electronic device) using a person or device using the electronic device.

Fig. 1 is a conceptual diagram of an electric circuit of an interlock switch-attaching direct current outlet plug according to an embodiment of the present invention.

Referring to Fig. 1, an interlock switch plug type direct current outlet plug 100 (hereinafter referred to as an interlock outlet plug) is shown (and / or described) for a DC breaker contact and an outlet- However, it is obvious that, when two or more outlet-plug electrodes are used, a DC breaker contact can be applied to more than two of the outlet plug electrodes as necessary.

According to one embodiment, a freewheel branch 115 composed of a diode D and a dummy resistor RD suppresses a back electromotive force generated in an inductive load when a DC circuit breaker 111 is cut off Thereby making it possible to secure the user in an accident such as arc generation and melting of the outlet-plug contact. The contact of the DC circuit breaker 111 may be configured to arrange the arc-extinguishing magnet used for the low-voltage DC circuit breaker in a tandem type so that the arc generated at the time of interruption is quickly extinguished. Referring to FIG. 1, a mechanical interlock 113 is indicated by the dotted arrow. That is, the DC interrupter can be automatically turned on / off by the mechanical interlock 113 according to the embodiments of the present invention when inserting or separating the plug electrode into the receptacle (or connecting or shorting to the receptacle electrode).

FIG. 2 is a conceptual diagram showing the arrangement of a magnet for arc-arc and a breaking contact of a DC breaker in an interlock switch according to an embodiment of the present invention.

2, the stationary contact portion 210 of the shut-off contact portion 200 is fixed to an outlet body frame, and the movable contact portion 220 includes a fixed pivot shaft 223 As shown in Fig. On the other hand, the arc-extinguishing magnet 201 (for example, the first magnet 201-1 and the second magnet 201-3) is connected in a tandem form to a breaking contact (for example, 211 and the second contact 221 of the movable contact portion 220). By disposing the arc-extinguishing magnet 201 as described above, it is possible to increase the magnetic flux density in the vicinity of the interrupting contact, operate based on the Lorentz force so as to warp an arc current generated when the circuit breaks, So that the circuit breaking time can be reduced. Here, in order to further increase the arc extinguishing force, an arc chamber 231 (arc chamber) may be additionally disposed in a peripheral portion of the DC breaker (for example, DC breaker 111 in FIG. 1) have.

According to one embodiment, the interrupting contact portion 200 shown in Fig. 2 may be one which constitutes at least a part of the interrupting contact portion 117 shown in Fig.

3A and 3B illustrate a structural concept of an interlock switch according to an embodiment of the present invention.

3A and 3B, there is shown a mechanical design concept of the interlock switch 300 (e.g., 300-1 and 300-2) configured as a single pole, but the present invention is not limited thereto and may be a bipolar / RTI > and / or < RTI ID = 0.0 > multi-polar < / RTI >

3A shows a state 300-1 in which the contact of the interlock switch is " Closed " (hereinafter referred to as (C) state in the drawing), and FIG. 3B shows a state in which the contact of the interlock switch is " , State (O) in the drawing) ".

According to one embodiment, the elements and functions of the interlock switch 300-1 based on FIG. 3A will be described. The fixed contact 351 is fixed to the socket body and the moving contact 353 is connected to the first link 350 rotating around a first fixed pivot 341 331 (link A, e.g., the movable contact portion 220 of FIG. 2)). The second link 335 may be configured to rotate about a second fixed pivot 343 mounted on the second link 335 body. The third link 333 (link C) is formed by connecting the first link 331 and the third link 332 using two or more mobile pivots (e.g., a first mobile pivot 323 and a second mobile pivot 325) The link 333 can be connected. Such a mechanical structure can maintain a stable state as shown in Fig. 3A or Fig. 3B.

3A, if the first moving pivot 323 connecting the third link 333 and the second link 335 is pulled to the left of the threshold line 339 indicated by the one-dot chain line, The movable contact point 353 can be stabilized in the " on " state as shown in FIG. 3B, and conversely, when the first movable pivot 323 is pulled to the right of the threshold line 339 indicated by the one- .

According to one embodiment, the slider link 310 and the third moveable pivot 321 (float pivot) within it may be a mechanism designed to provide a tensile force in the stabilization operation described above. For example, since the slider link 310 is fixed to the socket body, the third moving pivot 321, which slides along the groove of the slider link 310, is connected to the third link 333 by the tension spring 361, The third moving pivot 321 that slides along the groove of the slider link 310 is pulled up by the first moving pivot 323 connecting the second link 335 to the critical line 399, The third movable pivot 321 is moved to the first area 311 of the slider link 310 and the movable contact 353 is stabilized to the " on " state as shown in FIG. 3A, When the pivot 321 is moved to the right side of the critical line 399, the third moving pivot 321 is moved to the second area 313 of the slider link 310 and the moving contact 353 is moved as shown in FIG. 3B Quot; off " state. The grooves of the slider link 310 may be formed in a straight line, and may be formed in an arc shape as shown in Figs. 3A and 3B to maintain a stable state of " on " or " off ". In addition, in order to flexibly link mechanically with the operation of the plug, the slider link 310 can be fixed with a cushion 315 (cushion) interposed therebetween so as to move with a clearance to the socket body using an elastic body such as rubber have.

4 shows a structural concept of an interlock switch composed of two poles in an outlet according to an embodiment of the present invention.

Referring to Figure 4, two slider links 410 are arranged in parallel, using a cylindrical bar 430 passing through the axes of two moving pivots 420 sliding along two slider links 410, Switch contact 440 may be configured to operate simultaneously. Here, the cylindrical bar 430 can be defined as a switch bar 430 (switch bar). When the switch bar 430 is moved to the " on " position (e.g., the first area 551), the two switch contacts 440 are simultaneously "Quot; OFF " position (e.g., the second area 553), the two switch contacts 440 can simultaneously operate in the " off "

5 shows a concept of electrical connection between an interlock switch and a receptacle electrode according to an embodiment of the present invention.

5, a plurality of slider links 501 in the receptacle 500 are disposed in parallel, and the axes of the two moving pivots sliding along the two slider links 501 are commonly connected to each other using a switch rod 561 Lt; / RTI > According to one embodiment, the socket electrode 510 in the form of a cylindrical sleeve may be composed of a first electrode 511 and a second electrode 513, and a plug electrode (not shown) A plug electrode can be inserted or removed. It is obvious that the outline shape of the receptacle electrode 510 and the plug electrode (not shown) is not limited to the cylindrical shape but may be formed in various shapes such as a rectangular shape.

The contacts of the receptacle electrode 510 and the interlock switch may be connected in series by a first connection line 520 and the contact of the interlock switch may be connected to the external terminal 540 by the second connection line 550. [ A terminal can be connected to the terminal. Here, the external terminal 540 may be composed of a first terminal 541 and a second terminal 543. That is, an interlock switch may be connected in series between the external terminal 540 and the receptacle electrode 510. Therefore, the interlock switch can be mechanically interlocked with the operation of the plug, so that the interlock switch can be operated such that when the plug is inserted or removed, the circuit breaker is electrically preceded. The freewheeling diode circuit 530 may be connected in anti-parallel to the power polarity between the interlock switch and the receptacle electrode.

Referring to various embodiments of the present invention, the interlock switch is mechanically interlocked with a plug insertion and removal operation by a user to provide a mechanism for inserting and separating the plug in an electrically unpressurized state The design method can be explained.

FIGS. 6A, 6B and 6C are schematic cross-sectional views of a two-pole interlock switch and a receptacle electrode and / or receptacle in order to realize a mechanical interlock of a pushing latch scheme according to an embodiment of the present invention; do.

6A shows a conceptual arrangement of a proposed interlock switch and a receptacle electrode composed of two poles in order to realize a mechanical interlock of a pushing latch scheme.

6A, the outer shape of the socket electrode 610 (socket electrode) and the plug electrode is shown in the form of a cylindrical sleeve, but it may be applied to various shapes such as a rectangular shape. According to one embodiment, the two receptacle electrodes 610 and the two slider links 630 are arranged in parallel and can be fixed to the socket frame. The axes of the two moving pivots sliding along the two slider links 630 can be operated simultaneously using the switch rod 660. [ Quot; position 671, the two contacts of the interlock switch are simultaneously " on ", and conversely the switch rod is moved to the " The two contacts of the interlock switch can be driven simultaneously to the " off " state. With this structure, when the plug electrode is inserted into or disconnected from the receptacle electrode 610, the pushing or pulling action of the switch rod 660 moving along the two slider links 630 can be mechanically interlocked.

In other words, before the plug electrode (not shown) is inserted, the switch rod 660 is in the " off " position 673 and the interlock switch is in the " The switch rod 660 in the " off " position 673 is moved to the " on " position 671 by pushing the switch rod 660 by the mechanical interlocking operation by the interlock key , The interlock switch in the " off " state can be switched to the " on " state, and the interlock switch can be turned on in a state where the plug electrode and the outlet electrode 610 are electrically connected in advance . That is, the plug electrode can be initially inserted into the receptacle electrode 610 in a state in which the receptacle electrode 610 is not pressurized by the mechanical interlocking device, and when the plug electrode is inserted into the receptacle electrode 610, The interlock switch, which is a breaker for the vehicle, can be turned on. At the same time, the plug body can be automatically hooked to the socket body by the interlock key of the plug and the mechanical hanging device provided on the socket body so that the plug can not be pulled out of the socket when the electricity is pressurized.

According to one embodiment, the interlock switch is in the " on " state at the position 671 of the switch rod 660 in the " on " position before disconnection of the plug electrode, , The interlock switch in the " on " state is switched to the " off " state when the switch rod is pulled in the opposite direction by the mechanical interlocking operation so that the plug electrode and the outlet electrode are separated can do. That is, when the user releases the mechanical lock state by pressing the button of the interlock key provided on the plug handle to disconnect the plug, the plug electrode is disconnected from the receptacle electrode 610 by the mechanical interlocking device The automatically-connected circuit breaker can be operated to be turned off first.

6B shows the shape of a socket case constituting the external shape of the socket-outlet.

6B, a socket 680 (socket hole) for inserting the plug electrode and a mechanical interlocking mechanism for interlocking the plug at the time of inserting and separating the plug are formed in the front face portion of the socket case A hole 690 (Interlock hole), and a terminal 640 for supplying power to the rear portion of the receptacle case.

In addition, Fig. 6C shows a conceptual diagram of an interlock switch-attaching receptacle coupled in a receptacle case.

7A and 7B show a top view and a cross-sectional view of a plug designed to provide a plug and a latch for mechanically interlocking with an interlock switch installed inside the socket in a socket and plug according to an embodiment of the present invention.

7A shows a top view of a plug viewed from above according to an embodiment of the present invention.

Referring to FIG. 7A, the plug 700 may include a groove 730 and a fixed pivot 731 for installing an interlock key (not shown). In addition, the plug 700 may include an electrode 720 that is inserted into the receptacle electrode and may include at least one hole 701 for connecting the plug 700 with the connection line.

7B shows a cross-sectional view of the plug cut in half according to one embodiment of the present invention.

Referring to FIG. 7B, the interior of the groove 730 for installing the interlock key is shown. On the side surface of the groove, a fixed pivot 731 for interlocking with the interlock key, A link 733 can be configured.

FIG. 8 is a schematic view of a push latch installed in a groove portion of a plug according to an embodiment of the present invention. FIG.

Referring to FIG. 8, the plug 800 may be composed of a plug body 810, a plug electrode 820, and a pushing latch 830. The axis of the pivot 843 of the pushing latch 840 (interlock key) in the pushing latch portion 830 may be configured to enter and slide in the rotary blade type slider link 833 formed in the slide guide 831 . Here, the slide guide may be composed of a first slide guide 831-1 and a second slide guide 831-3, and the pushing latch 840 may be composed of a first slide guide 831-1 and a second slide And guide 831-3. In addition, the slider link 833 may be composed of the first slider link 833-1 and the second slider link 833-3.

On the other hand, the fixed pivot 835 formed across the first slide guide 831-1 and the second slide guide 831-3 passes through the linear slider link 841 formed on the pushing latch 840 . According to one embodiment, the stationary pivot 835 and the rotary wing-type slider link 833 are fixed to the plug body together with the two slide guides 831 so that the pusher latch 840 can move linearly about the stationary pivot 835 And the pushing latch 840 is also capable of linear movement and rotational movement along the rotary blade type slider link 833. [

9A and 9B are views showing the operation of the pushing latch and the slide guide in the pushing part according to the embodiment of the present invention.

9A and 9B, the pusher latch 940 and slide guide 931 of the pusher latch (e.g., pusher latch 830 of FIG. 8) may include pivot and slider links. Here, the slide guide 931 may include a first slide guide 931-1 and a second slide guide 931-3. According to one embodiment, the slide guide 931 may be configured to include a pusher latch 830 and / or a rotatable slider link 933 fixed to the plug body 810 and a fixed pivot 935, The pusher latch 940 may include a movable linear slider link 941 and a mobile pivot 943. For example, referring to FIG. 9A, the pusher 940 may perform a horizontal linear motion. That is, the pushing latch 940 can be moved to the left and right on the slide guide 931 in Fig. 9A. 9A and 9B, if the pusher latch 940 moves to the left such that the stationary pivot 935 is located at the right end of the slider link 941, It is possible to rotate counterclockwise along the rotary blade type slider link 933 with the fixed pivot 941 provided on the guide 931 as an axis. When the pushing latch 940 moves to the right and the fixed pivot 935 is positioned at the left end of the slider link 941, the pushing latch 940 pushes the fixed pivot 941 provided on the slide guide 931 And can be rotated clockwise along the rotary-blade-type slider link 933 as an axis. The slide guide 931 may include a spring 951 for generating an elastic force in a clockwise direction about a spring shaft 961. The slide pivot 943 of the pushing latch 940 may include a spring 951, So as to always rotate clockwise.

10 shows an alignment state of a plug with an interlock switch-equipped receptacle, according to an embodiment of the present invention.

Referring to Fig. 10, there is shown a state in which two plug electrodes 1020 are arranged to be inserted into two outlet electrodes 1080. Fig. At this time, the switch rod 1060 provided in the interlock switch-equipped receptacle 1000 and the pushing pawl 1040 provided on the plug 1010 can be aligned on the same line.

11 shows a peripheral structure of a switch bar installed in an interlock switch-equipped receptacle according to an embodiment of the present invention.

11, the slider link 1101 designed to slide the movable pivot 1103 of the switch rod operating the interlock switch to the left and right has a cushion 1131 -3). &Lt; / RTI > On the other hand, an interlock key home 1113 may be formed on a part of the socket body 1111 so that a latch (not shown) of the plug is hooked on the slider link 1101.

12A, 12B, 12C, and 12D illustrate mechanical interlocking operations driven when inserting a plug into an outlet according to an embodiment of the present invention.

12A, 12B, 12C and 12D, when a user inserts a plug (not shown) into an outlet (not shown), a mechanical interlock between the pushing latch of the plug and the interlock key home 1203 The operation and the mechanical interlocking operation between the pushing latch 1201 of the plug and the switch bar of the interlock switch (or the movable pivot interlocking with the switch rod) are interlocked.

12A, when the user starts to insert the plug electrode into the receptacle electrode, the head portion of the pushing pawl 1201 is pushed in contact with the guide of the receptacle so that the pushing pawl 1201 is fixed to the slide guide of the plug And can move along the wall surface of the receptacle while rotating counterclockwise about the pivot 1210. [

Referring to FIG. 12B, when the user continues to insert the plug, the pushing latch 1203 continues to enter along the wall surface of the receptacle, so that the switch rod 1213 of the interlock switch can be pushed to the left. At this time, the plug electrode is already inserted into the receptacle electrode and is connected in a circuit, and can be inserted more deeply as the user continues to insert the plug. When the user continuously inserts the plug and pushes the pushing latch 1211 down to the pushing latch 1221 of FIG. 12C, the switch rod 1223 of the interlock switch automatically moves to the " on "Lt; / RTI > Therefore, the interlock switch is turned " on " in a state where the plug electrode is inserted into the receptacle electrode, so that the electric energy is pressurized so that the generation of inrush current can be prevented in the plug electrode and the receptacle electrode.

12D, the pushing latch 1231 is rotated clockwise around the fixed pivot 1210 of the slide guide by the elasticity of a spring (for example, the spring 951 in FIG. 9) provided on the slide guide, And can be fixed by being caught by the latching groove 1203 of the latching member 1203. In this state, the movable pivot 1233 of the pushing latch 1231 is caught by the rotary-blade-type slider link of the guide, so that the user can not arbitrarily pull out the plug. That is, it may be in a lock state.

Figures 13A, 13B, 13C, and 13D, 13E, and 13F illustrate mechanical interlocking operations that are driven when the plug is disconnected from the outlet in accordance with various embodiments of the present invention.

Figs. 13A, 13B, 13C and 13D, 13E and 13F can illustrate various embodiments of the interlocking process by the electromechanical interlock operation when the button of the pushing latch is operated to separate the plug from the receptacle.

Referring to FIG. 13A, when the button 1303 of the pushing latch 1301 is pressed, the latching state can be released from the latching groove 1305 of the socket. The pushing latch 1301 is rotated in the counterclockwise direction about the fixed pivot 1307 of the slide guide so that the head portion of the pushing latch 1301 can be pulled out from the latching groove 1305 of the socket. At this time, the movement pivot 1309 of the pushing latch 1301 may be positioned on the straight portion of the rotary blade-like slider link 1311 provided on the slide guide as shown in FIG. 13B.

Referring to FIG. 13B, when the button 1303 of the pushing latch 1301 is pushed to the left in the drawing, according to one embodiment, the pushing latch 1301 can be moved as shown in FIG. 13C. At this time, in a state where the plug body is not moved, the movement pivot 1309 of the pushing latch 1301 moves to the left along the straight portion of the rotary blade-like slider link 1311 provided in the slide guide as shown in Fig. 13C, The pushing latch 1301 can be moved to the left side from the plug body. When the pushing latch 1301 is positioned as shown in FIG. 13C, the pushing latch 1301 is positioned just above the switch rod 1330 that manipulates the state of the interlock switch. 13D, when the depressing force of the button 1303 of the pushing latch 1301 is applied, the pushing latch 1301 pushes the fixed pivot 1307 of the slide guide about the fixed pivot 1307 of the slide guide, And can rotate counterclockwise along the axis 1311. The rotating pushing latch 1301 pushes the switch rod 1330 for manipulating the state of the interlock switch to the right, and the switch rod 1330 can move as shown in FIG. 13E.

13E, if a force is not applied to the button 1303 of the pushing latch 1301, the pushing latch 1301 is rotated about the fixed pivot 1307 of the slide guide about the rotary blade type slider link 1311 And then it can be positioned as shown in Fig. 13F. At this time, the movement pivot 1309 of the pushing latch 1301 may be located on the straight portion of the rotary blade-like slider link 1311 provided on the slide guide. In this operation, since the plug electrode does not move at all, the switch rod 1330 is moved to the right side and the interlock switch is switched to the " off " state The electrically pressurized state can be released. That is, in this state, even when the plug body is pulled out and the plug electrode is separated from the receptacle electrode, a problem such as an arc current may not occur.

14A, 14B and 14C are diagrams illustrating the operation of separating the plug body from the receptacle according to various embodiments of the present invention.

14A, 14B, and 14C, after the electrical and / or mechanical engagement is released by pressing the button 1403 of the plug latch 1401 (e.g., see FIGS. 13A through 13F), when the plug body is pulled out (Separation) kinematic behavior can be explained.

14A shows a mechanical state immediately after the latching state is released by depressing the button 1403 of the pushing latch 1401. Fig. According to one embodiment, when the plug body is pulled to the right side of the drawing, the fixed pivot 1405 of the slide guide fixed to the plug body and the rotary blade type slider link 1411 are engaged with the slider link 1413 and the mobile pivot 1409 to pull the pushing latch 1401 to the right. At this time, the plug electrode is inserted into the receptacle electrode, and the plug body and the pushing pin 1401 can move in parallel to the right side like the movement of the plug electrode.

Referring to FIG. 14B, the pushing latch 1401 may apply a pressing force to the switch rod 1430 of the interlock switch, in which case the cushion 1441 may be pressed to allow the pushing latch to pass.

Referring to Fig. 14C, the plug and the press latch are separated from the outlet. Referring to FIG. 14C, in the process of separating the plug body from the receptacle, the pushing latch 1401 may be partially out of the plug body.

15A, 15B, 15C, and 15D illustrate operation when the plug according to various embodiments of the present invention is disconnected from the outlet.

Referring to FIG. 15A, a state in which the pushing hook 1503 partially protrudes from the plug body 1501 is shown. According to one embodiment, Fig. 15A shows a state in which the pushing latch 1401 is partially removed from the plug body in the operation in which the plug body is separated from the receptacle in Fig. 14C.

According to one embodiment, the pusher clasp 1503 exiting the plug body 1501 may be returned as shown in FIG. 15D when it is pushed (or pressure applied) toward the plug body 1501, and broken or foreign matter And the like can be prevented.

15B and 15C show a process in which the pushing latch 1503 is moved to the plug body 1501 when the pressure is applied to the right side in the figure, and FIG. 15D shows a state in which the pushing latch 1503 is moved to the plug body 1501 And shows the relative positions of the plug body 1501 and the pushing latch 1503 when moved.

According to various embodiments of the present invention, in the process of connecting the plug to the receptacle, the interlocking receptacle-plug is configured such that the pushing latch included in the plug pushes the switch rod of the interlock switch of the receptacle to contact the interrupting contact portion of the receptacle, (Push-type) interlock switch-equipped receptacle-plug that controls the supply of current to the circuit while the plug electrode and the outlet electrode are connected.

According to an embodiment of the present invention, an interlock outlet plug includes: a plug including a plug electrode and a pushing latch; A plug electrode is inserted into the receptacle electrode, and the stop contact portion is inserted into the receptacle electrode in accordance with the movement of the pushing latch, And an outlet including an interlock switch section for connecting or disconnecting the interlock switch section.

Such a method and / or apparatus may be applied through at least some of the receptacle 110 and the plug 120 making up the interlock receptacle 100 or the interlock receptacle 100 as shown in FIG. Can be implemented.

As described above, when the direct current type plug is inserted into the outlet, when the pushing latch of the plug pushes the switch rod of the interlock switch attached to the outlet, the switch rod of the interlock switch is moved in the opposite direction of the plug, (C) ". Therefore, the direct-current power supply Vdc is supplied to the plug through the operation of the interlock switch in a state in which the plug electrode is completely inserted into the receptacle electrode, thereby suppressing the generation of rush current between the receptacle electrode and the plug electrode.

On the other hand, in the case of separating the dc plug in the state where the pushing latch of the dc plug is fastened to the dc socket, first, when the pushing latch of the dc plug is pulled from the socket to the plug, Direction and the interlock switch is "OFF ". Thus, the receptacle electrode and the plug electrode are electrically disconnected. If the DC type plug is pulled out in this state, an arc is not generated between the receptacle electrode and the plug electrode, and can be separated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Plug for DC connection with interlock switch - Plug
111: DC breaker 113: Mechanical interlock
115: reflux circuit 201: magnets for arc welding
210: stationary contact portion 220: movable contact portion
231: arc soho chamber 310: slider link
321, 323, 325: moving pivot 361: spring
331, 333, 335: Link 510: Outlet electrode
820: plug electrode 831: slide guide
833: Slider link 835: Fixed pivot
840: Push clasp 843: Moving pivot
931: Slide guide 941: Slider link
951: Spring 1111: Outlet body
1113: Dagger groove

Claims

A plug including a plug electrode and a pushing latch; And
And a receptacle connected to the plug,
The plug
A plug body to which the plug electrode is attached;
A first slide guide and a second slide guide fixed to the plug body; And
And a slider link groove formed in each of the first slide guide and the second slide guide,
Wherein the pushing latch is located between the first slide guide and the second slide guide and is engaged with the slider link grooves, moves along the slider link grooves,
The socket-
A blocking contact portion connected or disconnected to supply or block the DC power to the plug;
A receptacle electrode into which the plug electrode is inserted; And
And an interlock switch connecting part for connecting or disconnecting the interrupting contact part in accordance with the movement of the pushing latch in a state where the plug and the receptacle are engaged and the plug electrode is in contact with the receptacle electrode, assembly.

The method according to claim 1,
The interlock switch unit includes:
An outlet body to which the outlet electrode is attached,
A first fixed pivot fixed to the socket body,
A first link including the first fixed pivot at one end and rotating about the first fixed pivot,
A second fixed pivot coupled to the socket body,
A second link that rotates about the second stationary pivot,
A third link connected to the first link including the first movable pivot at one end and connected to the second link including the second movable pivot at the other end to connect the first link and the second link,
A first slider link fixed to the socket body, and
And a third movement pivot moving along a groove formed in the first slider link.

3. The method of claim 2,
The cut-
A fixed contact fixed to one face of the socket body,
And a movable contact which is installed at the other end of the first link which is rotatable about the first fixed pivot and includes a first fixed pivot fixed to the socket body at one end,
And the first link is operated to contact or separate the moving contact from the stationary contact according to the movement of the pushing latch.

3. The method of claim 2,
Wherein the interlock switch portion and the cutoff contact portion are disposed in parallel and arranged in parallel,
Wherein a pair of said third moving pivots in said pair of interlock switch portions arranged in parallel are connected by a switch bar,
And a pair of said third moving pivots move together with movement of said switch bar.

5. The method of claim 4,
Wherein the switch rod is controlled in accordance with the movement of a pushing latch of the plug.

3. The method of claim 2,
Wherein the interlock switch portion turns on the interrupting contact portion when the third moving pivot is located at one end of the groove formed in the first slider link and the third moving pivot is on the other end of the groove formed in the first slider link, , The blocking contact portion is turned off.

The method of claim 3,
Wherein the blocking contact portion has two arc-extinguishing magnets arranged in a tandem form in a direction perpendicular to the stationary contact and the moving contact.

The method according to claim 1,
The plug
Wherein both ends of the fixed pivot are fixed to the first slide guide and the second slide guide, respectively,
The pushing pawls being formed to be inserted into the slider link grooves, respectively, and moving along the slider link grooves; And
And a slider link configured to move the stationary pivot.

9. The method of claim 8,
Wherein the pushing latch is engaged with the interlock switch portion of the receptacle to move the movable pivot.

9. The method of claim 8,
Wherein at least one of the first slide guide and the second slide guide includes a spring for applying a clockwise elastic force to the moving pivot.