WO2015190827A2 - Safety socket - Google Patents

Abstract

The present invention relates to a safety socket that can be safely used, so that children will not get shocked even if they put objects such as long chopsticks into the socket. The present invention realizes a new type of safety device that controls power input while connectedly operating with a plug pin when the plug pin is inserted into the socket and uses a plug having standard specifications so that power is input only when two plug pins of the plug are inserted at the same time. Thus, the present invention provides the safety socket in which, even if children should insert metal sticks such as chopsticks into the socket for fun, an electric shock accident can be prevented to ensure the safety of the socket product and the quality reliability thereof.

Description

Safety outlet

The present invention relates to a safety outlet, and more particularly, to a safety outlet that can be used with confidence so that children are not electrocuted even when the child pokes the outlet with an article such as elongated chopsticks.

In general, an outlet is a device for applying power to various electrical / electronic devices. When a power source is connected to an outlet, which is a connector on the indoor wiring side, and a plug formed in a cable of an electronic product is connected to the outlet, power is supplied to the electronic product. And it works.

Usually, the outlet is composed of an outlet plate having a plug insertion hole into which the plug pin of the electronics plug can be inserted, and an outlet body having a power terminal coupled to the bottom of the outlet plate and connected to the plug pin inserted through the plug insertion hole. do.

However, the conventional outlet has a problem in that an electric shock or an electric leakage accident occurs frequently because the plug insertion hole into which the plug pin is inserted is always opened.

For example, when children are jokingly pushing a metal rod such as chopsticks, there is a problem that an electric shock accident often occurs when the metal rod is inserted into a power terminal.

In consideration of this point, Korean Patent Publication No. 10-2011-0012100, Korean Patent Publication No. 10-2011-0133742, Korean Patent Publication No. 10-2013-0060391 and the like suggest various types of safety outlets.

As an example, an outlet having a cover that can be opened and closed by a slide method is provided in the front of the outlet. However, in the case of such an outlet, when a child or the like opens the cover due to curiosity and inserts a conductive material, electric shock or short circuit There is a risk of an electrical accident.

As such, in recent years, there is a demand for a convenient and safe outlet that can increase the safety against electric shock while pursuing convenience in using the outlet.

[ Prior Art Document ]

[ Patent Literature ]

(Patent Document 1) Korean Patent Publication No. 10-2011-0012100

(Patent Document 2) Korean Patent Publication No. 10-2011-0133742

(Patent Document 3) Korean Patent Publication No. 10-2013-0060391

Accordingly, the present invention has been made in view of the above, and when the plug pin is inserted into an outlet, the present invention operates only in conjunction with the plug pin, intermittently intercepts the power input, and particularly only when two plug pins in the plug are simultaneously inserted. By implementing a new safety device of the type that allows power to be input, it is possible to prevent the electric shock accident even when children put a metal rod such as chopsticks into the outlet for safety. The purpose is to provide an outlet.

In addition, it is another object to provide a safety outlet that is operated only when inserting only a plug pin having a diameter of a standard, so that power is input.

In order to achieve the above object, the safety outlet provided by the present invention has the following features.

The safety receptacle is a receptacle applicable to various types of conduits such as a wall outlet, a multi-outlet, and the like, the outlet body having a pair of power terminals to which a plug pin of a plug is inserted and connected, and a power input terminal for external power input. And an outlet plate coupled to the front surface of the outlet body and having a plug insertion hole for inserting a plug, interposed between the power supply terminal and the power input terminal, and interoperating by contact with a plug pin when the plug is inserted. It consists of a structure including a safety device for selectively connecting between the power supply terminal and the power input terminal.

In particular, the safety device is assigned to each side of the pair of power terminals, the power can be applied only when the simultaneous contact is formed through the operation of each safety device by the insertion of two plug pins, Even if a metal rod such as chopsticks is inserted into one of the outlets as a joke, it is possible to prevent an electric shock.

Here, the safety device is a front end extends to the pin insertion region in the power terminal and the linear movable movement in contact with the plug pin, a rotor rotatable about an axis connected to the rear end of the mover, and the It may be connected to the front end and at the same time connected to the power input terminal side, and may be made of a structure including a movable contactable to the fixed contact in the power supply terminal through the movable contact of the front end while moving in the rotor rotation.

The mover and the rotor and the rotor and the mover may be connected to each other by a locking structure using a groove, and the mover and the mover may each include a return spring for returning to an initial position, and the safety device. And may further include an auxiliary mover, which is located side by side opposite the mover and is linearly movable by contact with the plug pin.

Safety outlet provided by the present invention has the following advantages.

First, apply a safety device to control the power input while operating by contact with the plug pin inserted into the outlet, and operate only when two plug pins of standard diameter are inserted at the same time. By adopting the type, it is not safe to insert a defective plug pin that is not a standard, so the power is not input, or a child can be prevented from electric shock by inserting a metal rod such as chopsticks into the outlet due to carelessness. Can be used.

Second, even if dust, water or foreign material penetrates into the outlet, it is possible to prevent short or short circuit.

Third, the structure is simple and easy to assemble, and can be applied to various kinds of outlets such as wall outlets or multi-outlets.

1 is a plan view showing a safety device of the safety outlet according to an embodiment of the present invention

FIG. 2 is a diagram illustrating the main parts of the line A-A of FIG.

Figure 3 is a plan view showing the operating state of the safety device of the safety outlet according to an embodiment of the present invention

Figure 4 is an exploded perspective view showing an example of applying the safety device of the safety outlet according to an embodiment of the present invention to the wall outlet

5 is a perspective view showing an example in which the safety device of the safety outlet according to an embodiment of the present invention applied to the wall outlet

FIG. 6 is an excerpt illustrating an example of applying a safety device of a safety outlet according to an embodiment of the present invention to a wall outlet; FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view showing a safety device of the safety outlet according to an embodiment of the present invention, Figure 2 is a schematic view of the A-A line in FIG.

As shown in Fig. 1 and 2, the safety device of the safety outlet is operated in conjunction with the plug pin of the plug that is inserted into the outlet, and when the plug pin is inserted, the outlet power terminal and the power input terminal electrically connected In addition, when the plug is removed, the electrical connection between the outlet power terminal and the power input terminal is cut off.

To this end, the safety outlet is made of a combination of the outlet plate 16 and the outlet body 14, at least one plug insertion hole 15 into which the plug 10 can be inserted into the outlet plate 16. The plug body 11 has a pair of power terminals 12a and 12b which can be connected to two plug pins 11 of the plug 10 at the same time. It is mounted in the form of double speed.

In addition, the outlet body 14 includes a power input terminal 13 that can receive power from the outside, and the power input terminal 13 at this time includes two pairs of power terminals 12a and 12b. It is located in proximity to one side of each terminal can be electrically connected by the safety device 17 to be described later.

Here, the pair of power supply terminals 12a and 12b includes an area in which the plug pin 11 is inserted, that is, a substantially circular pin insertion portion 27 formed by two terminals facing each other. The plug pin 11 can be elastically fitted between both terminals in the pin insertion portion 27.

In addition, a fixed contact 22 is formed at one terminal end of two terminals of the pair of power supply terminals 12a and 12b, and the fixed contact 22 at this time is movable in the safety device 17. The contact 21 can form a contact.

In particular, the safety outlet of the present invention is a means for controlling the electrical connection between the power terminal 12a, 12b side and the power input terminal 13 side, that is, the power terminal 12a, 12b side and the power input terminal 13 side. It includes a safety device 17 as a means for selectively connecting or disconnecting the role.

The safety device 17 is interposed between the power supply terminals 12a and 12b and the power input terminal 13, and operates in conjunction with the power supply terminals 12a and 12b and the power input terminal 13 while being interlocked. It will serve to connect the liver.

To this end, the safety device 17 is composed of a combination of three terminals, that is, a combination of the mover 18, the rotor 20 and the mover 23, by contact with the plug pin 11 The cooperative movement between the terminals allows the power to be supplied to or disconnected from the plug side.

The mover 18 is shaped like a strip piece having a locking piece 28 at its rear end, and is installed in a structure capable of linearly moving back and forth while being seated and supported in the slide groove 29 formed in the outlet body 14.

The front end of the mover 18 extends to the pin insertion region of the power supply terminals 12a and 12b, that is, the inner region of the pin insertion portion 27, and takes a posture that blocks the upper portion of the pin insertion portion 27. Accordingly, before the plug pin 11 is inserted into the pin insertion portion 27 of the power supply terminals 12a and 12b, the plug pin 11 contacts the tip inclined portion of the mover 18 and pushes the mover 18 back at this time. I can give it.

At this time, the tip portion of the mover 18, that is, the portion in contact with the plug pin 11 is inclined at an angle downward, so that the plug pin 11 is inserted into the power supply terminals 12a and 12b. It can easily be pushed back.

In addition, the mover 18 may be returned to the initial position at the same time as the plug pin 11 is removed from the position pushed back by the plug pin 11, for this purpose, the rear end of the mover 18 and the outlet body 14. A return spring 25a is installed between the slide grooves 29 walls of the crankshaft, and the mover 18 elastically supported by the return spring 25a is always in an initial position (a position where the front end blocks the upper part of the pin insert). You will be encouraged to return.

Of course, the auxiliary mover 26 to be described later, as well as the mover 18, it is preferable to be able to receive the elastic support by the return spring (25a).

Meanwhile, the safety device 17 may further include an auxiliary mover 26, and the auxiliary mover 26 may also be pushed backward by contact with the plug pin 11.

The auxiliary mover 26 is positioned side by side opposite to the mover 18 and is installed in a structure capable of linearly moving back and forth while being seated and supported in the slide groove 29 formed in the outlet body 14.

At this time, the auxiliary mover 26 also has a tip portion inclined downward at an angle, so that the auxiliary mover 26 can be easily pushed out by the plug pin 11 inserted into the power supply terminals 12a and 12b.

Accordingly, when the plug pin 11 is inserted into the pin insertion portion 21 of the power supply terminals 12a and 12b, the mover 18 and the auxiliary mover 26 on both sides contacting the plug pin 11 at this time. ) Is pushed backwards at the same time, so that both the mover 18 and the auxiliary mover 26 can be opened at the same time while maintaining a balance of power between each other.

That is, by allowing the auxiliary mover 26 to exert an appropriate resistance on the opposite side of the mover 18, it is possible to secure the exact moving distance of the mover 18.

The rotor 20 is formed in a plate shape as a means for linking the operation of the mover 18 to the mover 23 side, the outlet body is located on one side of the power supply terminals (12a, 12b) 14 is installed in a structure rotatable through the shaft (19).

Grooves 24a and 24b are formed at the front end and the rear end of the rotor 20, respectively, and can be connected to the mover 18 side and the mover 23 side through the grooves 24a and 24b. do.

That is, the engaging piece 28 at the rear end of the mover 18 is caught in the groove 24a at the rear end of the rotor 20, and the groove 24b at the front end of the rotor 20. At the tip end of the mover 23 is located and caught.

Accordingly, when the mover 18 is linearly moved by the contact with the plug pin 11, the rotor 20 also rotates in a clockwise or counterclockwise direction in connection with the mover 18. ) Can move together.

The mover 23 is in the form of a rectangular band piece to serve to apply the power provided from the power input terminal 13 side to the power terminal 12a, 12b side.

The mover 23 is installed to be rotatably connected to the power input terminal 13 through the rear end, and the front end of the mover 23 is caught by the groove 24b of the rotor 20. Can be connected.

Then, a movable contact 21 is attached to the distal end of the mover 23, and the power is supplied while forming a contact with the fixed contact 22 in the power terminals 12a and 12b through the movable contact 21 at this time. It can be authorized.

In addition, the mover 23 may be returned to the initial position simultaneously with the return of the rotor 20 by the rotor 20 having the front end with the movable contact 21 positioned toward the fixed contact 22. And, in order to more smoothly this can be installed through the return spring (25b) between the rear surface of the mover 23 and the wall surface of the outlet body (14).

Accordingly, when the rotor 20 rotates in the clockwise direction, the tip of the mover 23, that is, the tip with the movable contact 21 is rotated, and the contact with the fixed contact 22 in the power terminals 12a and 12b is rotated. The power supply terminal 12a and 12b can be supplied with electrical connection between the power input terminal 13 side and the power supply terminal 12a and 12b side together with the contact formation.

As described above, the safety device 17 formed of a combination of the mover 18, the rotor 20, and the mover 23 has a pair of power terminals 12a, into which two plug pins 11 are simultaneously fitted. It is assigned to each side of 12b), respectively.

Accordingly, in the case where simultaneous contact formation is made through the operation of each safety device 17 made by inserting two plug pins, that is, each fixed contact 22 in two safety devices 17 assigned to a pair. Power can be applied to the plug side only when and the movable contact 21 simultaneously forms a contact. In this case, when the diameter of the plug pin 11 is larger than the standard specification, the plug pin may not pass through the plug pin insertion hole of the outlet, and thus the coupling is impossible. Also, when the diameter of the plug pin 11 is smaller than the standard specification, the mover 18 Since the forward and backward distance of the) is shortened, the movable contact 21 of the movable member 23 does not reach the fixed contact 22, and thus, the power input operation cannot be performed, thereby ensuring more safety.

Figure 3 is a plan view showing an operating state of the safety device of the safety outlet according to an embodiment of the present invention.

As shown in Fig. 3, before inserting the plug into the outlet, the mover 18 maintains its initial position by the force of the return spring 25a, while the pin insertion portion 27 of the power supply terminals 12a and 12b is held. The upper region of the state is blocked.

In addition, the rotor 20 and the mover 23 associated with the position of the mover 18 also maintain the initial position, and the movable contact 21 in the mover 23 at this time is the power supply terminal 12a. 12b), it is in a state away from the stationary contact 22.

Therefore, the said power supply terminal 12a, 12b and the power supply input terminal 13 are in the state which disconnected with each other.

When the plug is inserted into the outlet, when the plug pin 11 of the plug 10 is inserted into the pin insertion portion 27 of the power supply terminals 12a and 12b, the mover 18 blocking the upper portion of the pin insertion portion 27. ) Is pushed back by the contact with the plug pin (11).

At this time, the auxiliary mover 18 that was opposite the mover 18 is also pushed back.

Next, when the mover 18 moves, the rotor 20 coupled to the rotor 20 rotates about the shaft 19, and when the rotor 20 rotates, the mover 23 coupled thereto. The leading edge of will move forward.

Therefore, the movable contact 21 of the movable member 23 is attached to the fixed contact 22 of the power supply terminals 12a and 12b by the movement of the movable member 23, and eventually the power supply terminals 12a and 12b As the power input terminals 13 are electrically connected to each other, power can be supplied to the plug side.

The contact formation between the movable contact 21 and the fixed contact 22 is made simultaneously in each of the safety devices 17 belonging to the pair of power terminals 12a and 12b, i.e. in two places with the plug insertion. At the same time, the contact is formed, so that power can be supplied to the plug side.

When the plug pin 11 is removed from the power supply terminals 12a and 12b, the mover 18, the rotor 20, and the mover 23 are moved by the restoring force of the return springs 25a and 25b. It is possible to return to the initial position.

Therefore, in such a power supply structure, even when children poke an outlet with an object such as chopsticks, contact formation does not occur unless the movers on both sides are accurately pushed, thereby preventing an electric shock accident, and even by moving the mover with a chopstick, Even if the contacts are attached, the power will never be supplied unless the two contacts are attached at the same time, thus eliminating the risk of electric shock.

4 and 5 are an exploded perspective view and a combined perspective view showing an example of applying the safety device of the safety outlet according to an embodiment of the present invention to the wall outlet, extracting parts.

As shown in Figures 4 to 6, it shows an example in which the safety device is applied to the recessed wall outlet.

The socket body 14 having a combination structure of the upper plate 14a in the square case form in which the power supply terminals 12a and 12b, the power input terminal 13, and the grounding terminal 30 are assembled, has both screw fastening holes. The outlet plate 31 is embedded in the wall by the outlet bracket 31, and the outlet plate 16 having the plug insertion hole 15 in front of the outlet body 14 thus installed is assembled, and the outlet cover 32 as a closing member is sequentially assembled. This will close the wall outlet installation area.

The wall outlet shown here is a two-pronged outlet into which two plugs can be inserted. The outlet body 14 of such a two-pronged outlet allows a power terminal into which two plug pins 11 of each plug can be inserted. Two pairs of 12a and 12b are provided, and each pair of power supply terminals 12a and 12b is provided with one safety device 17 at each terminal side.

Then, two power input terminals 13a and 13b connected to the external power supply side are provided, and each power input terminal 13a and 13b is responsible for any one terminal side of each pair of power supply terminals 12a and 12b at the same time. do.

That is, two movers 23 having respective movable contacts 21 are integrally formed in one power input terminal 13a so as to be rotatable, and these power input terminals 13a are formed by two pairs of front and rear sides. It is doubled across the power supply terminals 12a and 12b to make a power supply possible by making contact with any one power supply terminal 12a in each pair.

Accordingly, when the plug is plugged in, the two plug pins 11 may be connected to both of the two power input terminals 13a and 13b and may receive power.

In particular, the outlet body 14 is provided with two pairs of power terminals 12a and 12b, one pair each up and down, and one safety device 17 is assigned to the pair of power terminals 12a and 12b.

For example, a mover 18 and an auxiliary mover 26 are disposed above the pin insertion portion 27 of one power supply terminal 12a, and are rotatable by a shaft 19 on the rear end side of the mover 18. The rotor 20 is disposed and the mover 18 and the rotor 20 are connected by the locking structure between the groove 24a and the locking piece 28, and a power input terminal is provided at the rear end of the rotor 20. The mover 23 is supported by the rear end so as to be rotatable, and the mover 23 and the rotor 20 are connected by a locking structure between the groove 24b and the distal end.

Therefore, when the plug pin 11 is inserted into one of the power supply terminals 12a, the mover is moved by the linear motion of the mover 18 → rotation of the rotor 20 → rotation of the tip of the actuator 23. A contact is formed between the movable contact 21 in the 23 and the fixed contact 22 in the power supply terminal 12a, so that power can be supplied.

This power supply operation is performed at the same time in the power supply terminal 12b of the other side, and at the same time the contact is made at both power supply terminals 12a and 12b on which two plug pins 11 are inserted, Power can be supplied to the plug side.

As described above, in the present invention, the power input can be interrupted while operating in conjunction with the plug pin insertion, and in particular, by applying a safety device such that the power is input only when two plug pins in the plug are inserted at the same time. Even if a metal rod such as chopsticks is inserted into the outlet, the use of the outlet can be secured by fundamentally preventing the risk of electric shock.

[ Description of the Code ]

10: plug

11: plug pin

12a, 12b: Power terminal

13: power input terminal

14: outlet body

15: plug insertion hole

16: outlet plate

17: safety device

18: mover

19: axis

20: rotor

21: movable contact

22: fixed contact

23: mover

24a, 24b: home

25a, 25b: return spring

26: secondary mover

27: pin insertion section

28: hanging piece

29: slide groove

30: ground terminal

31: outlet bracket

32: outlet cover

Claims (7)

An outlet body 14 having a pair of power terminals 12a and 12b into which the plug pin 11 of the plug 10 is inserted and connected, and a power input terminal 13 for external power input; An outlet plate (16) coupled to the front of the outlet body (14) and having a plug insertion hole (15) for insertion of the plug (10); It is interposed between the power supply terminals 12a and 12b and the power input terminal 13 to operate in conjunction with the contact with the plug pin 11 when the plug is inserted, and the power supply terminals 12a and 12b and the power input terminal 13. Includes; safety device 17 to selectively connect between), The safety device 17 includes a mover 18 capable of linear movement while the tip extends to a pin insertion region in the power supply terminals 12a and 12b and makes contact with the plug pin 11, and at the rear end of the mover 18. Connected to the rotor 20 rotatable about the shaft 19 and the front end of the rotor 20, and connected to the power input terminal 13 side and moved when the rotor rotates, and the movable contact of the front end ( And a mover (23) connectable to the stationary contact (22) at the power supply terminals (12a, 12b). delete The method according to claim 1, The mover (18) and the rotor (20) and the rotor (20) and the mover (23) is a safety outlet, characterized in that connected to each other by a locking structure using the groove (24a, 24b). The method according to claim 1, The mover (18) or mover (23) comprises a return spring (25a, 25b) for return to the initial position. The method according to claim 1, The safety device (17) further comprises an auxiliary mover (26) linearly movable by contact with the plug pin (11) located side by side opposite the mover (18). The method according to claim 1, The safety device 17 is assigned to each side of the pair of power supply terminals 12a and 12b, and only when simultaneous contact formation is made through the operation of each safety device 17 by inserting two plug pins. A safety outlet characterized in that it can be applied. The method according to claim 1, The safety device (17) is a safety outlet, characterized in that can be applied to the wall outlet or multi-outlet.

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