KR200218807Y1 - Power Saving Plug - Google Patents

Abstract

The present invention relates to a power plug, the rotating housing 10 accommodates two rotary terminals 11 are connected to each of the two cord wires 2 for supplying power to the electrical appliance; And two fixed terminals 21 electrically connected to or separated from the two rotary terminals 11 and the respective fixed terminals 21 according to the rotation of the rotary housing 10 to the connection ports of the outlets. Two connecting terminals (22) each inserted therein, the fixed housing (20) being assembled such that the rotary housing (10) is rotatable; As the rotary housing 10 rotates, a connection state in which the rotary terminal 11 and the fixed terminal 21 are electrically connected, and the rotary terminal 11 and the fixed terminal 21 are electrically blocked. Disclosed is a power saving plug (1) characterized in that a cutoff state is switched.

Description

Power Saving Plug

(Technology)

The present invention relates to a plug, and more particularly, a plug connected to an end of a cord to supply power to various electrical appliances by plugging into an outlet of an electrical wiring, and selectively supplying power to a cord line without removing the plug from the outlet. A power saving plug that can be connected and disconnected.

(Background)

As is widely known, various electrical appliances including home appliances are connected with a cord wire for supplying power from a power source wired to a building, and a power plug for safely connecting the cord wire to an electrical wiring outlet at the end of the cord wire. Is connected.

Many electrical appliances are designed to consume a small amount of power, called standby power, when the plug is not removed from the outlet even when the power switch is turned off due to convenience of use or convenience of manufacture.

The approximate standby power of representative household appliances according to the Korea Consumer Protection Agency's survey shows that the TV is 3.5 Wh (Watt), the video is 9 Wh, the audio is 14 Wh, the computer is 14.5 Wh, the microwave is 5.9 Wh, and the washing machine is It is said to reach 1.9 Wh. Statistics also show that the average household consumes up to 1.8 billion kWh of additional standby power annually, more than double the annual output of the Chungju hydroelectric power plant (880 million kWh). As of 1999, it is estimated to reach 170 billion won.

Therefore, it is very desirable in terms of energy saving not only to turn off the switch when not using electrical appliances, but also to unplug the appliance. For this reason, the power-saving movement of 'unplugging household appliances not in use' is widely developed. It is true. It is also known that unplugging power plugs is desirable not only for power saving but also for reducing the likelihood of fire in electrical appliances that are not in use and protecting the product from lightning strikes. However, although unplugging electrical appliances that are not used in ordinary homes or offices has been practiced more than before, the problem of standby power consumption still needs to be solved.

One of the reasons for the unplugged practice is that plugging and unplugging a plug every time an electrical appliance is turned on and off is very cumbersome. As is widely seen, plugging and unplugging two connectors of a plug into two outlets of a receptacle is a cumbersome task. In particular, the unplugged plug rolls around, hangs up, finds a plug unplugged for use in electrical appliances, and finds out which plug corresponds to the electrical appliance that you want to use among the multiple plugs. Although it is well known that standby power is being consumed due to the inconvenience, it is often left unplugged as an outlet.

An object of the present invention is to solve the problem of the conventional plug related to the standby power consumption of the electrical appliance as described above, the plug to cut off the power supply to the electrical appliance in the state that the plug is plugged into the outlet By providing a, it is intended to allow the power saving of the standby power for the electrical appliances that practically insufficient in practice due to the inconvenience of plugging and unplugging the plug into the outlet.

1 is a schematic cross-sectional view of an exemplary power saving plug according to the present invention;

FIG. 2 is an exploded perspective view of the power saving plug illustrated in FIG.

3 is a perspective view of a connected state and a disconnected state of the energy-saving plug illustrated in FIG. 1;

4 is a cross-sectional view showing a connection state and a blocking state of a rotating terminal and a fixed terminal;

5 is a cross-sectional view of another exemplary power saving plug according to the present invention;

6 is a cross-sectional view of another exemplary power saving plug according to the present invention.

<Description of the code | symbol about the principal part of drawing>

1: plug 2: cord wire of the present invention

10: rotary housing 11: rotary terminal

12: shaft 13: concave groove

14: Cord wire connecting thread 15: Cap

20: fixed housing 21: fixed terminal

22: connector 23: annular groove

24: axial 25: turning

26: elastic ring 27 (A): elastic ring (spring) receiving hole

28: mounting screw 29: spring

According to the present invention, there is provided a power saving plug including a rotating housing and a fixed housing, and the electrical connection state and the disconnection state are switched by rotating the rotary housing relative to the fixed housing.

The rotary housing accommodates two rotary terminals, each of which is connected to two cord wires for supplying power to an electrical appliance, and the fixed housing is electrically connected to or separated from the rotary terminal according to the rotation of the rotary housing. Two fixed terminals and two connecting terminals electrically connected to the fixed terminals and inserted into two connection ports of the outlet, respectively.

The energy-saving plug of the present invention can freely switch between a connection state in which the rotary terminal and the fixed terminal are electrically connected and a blocking state in which the rotary terminal and the fixed terminal are electrically disconnected as the rotary housing is rotated. This eliminates the need for the plug to be unplugged when the appliance is not in use, and by simply turning the rotating housing off, the standby power is not consumed.

The assembly structure of the rotary housing and the fixed housing is not particularly limited as long as it can freely rotate the rotary housing and can switch the connected state and the disconnected state according to the rotation of the rotary housing, but the rotary housing and the fixed housing are not limited. Concave grooves and corresponding projections are formed on the contact surface of the housing at positions corresponding to the connected state and the disconnected state, and the rotating housing and the fixed housing are assembled to have elasticity to accommodate the height of the protrusions. It is preferable to adopt a structure to make.

The rotating housing and the fixed housing may be formed as a unitary housing formed by integrally molding a plastic synthetic resin in a state in which the cord line, the rotating terminal, the fixed terminal, and the connecting terminal are embedded, or the cord as necessary. The wire, the rotating terminal, the fixed terminal and the connecting terminal may be formed in a separate type that is assembled to each other by a fastening screw so as to mount, remove and repair.

Hereinafter, with reference to the accompanying drawings will be described in detail the power-saving plug according to the present invention. The following embodiments are merely illustrative of the power-saving plug according to the present invention, and are not intended to limit the scope of the present invention.

1 is a schematic cross-sectional view of an exemplary energy-saving plug according to the present invention, FIG. 2 is an exploded perspective view of the power-saving plug illustrated in FIG. 1, FIG. 3 is a perspective view of a connected state and a disconnected state of the power-saving plug illustrated in FIG. 5 is a cross-sectional view showing a connection state and a blocking state of a rotation terminal and a fixed terminal, FIG. 5 is a cross-sectional view of another exemplary power saving plug according to the present invention, and FIG. 6 is a cross-sectional view of another exemplary power saving plug according to the present invention.

As shown in Figures 1 to 4, the energy-saving plug 1 according to the present invention is largely composed of a rotating housing 10 and a fixed housing 20, the rotating housing 10 and the fixed housing 20 is fixed The housing 20 is assembled to freely rotate the rotating housing 10 while being inserted into the outlet.

The rotary housing 10 is equipped with a rotary terminal 11 to which two cord wires 2 are normally connected to supply electrical power. One end of the rotary terminal 11 is accommodated in the rotary housing 10 while being connected to the cord line 2, but the other end of the rotary terminal 11 protrudes out of a predetermined length from the rotary housing 10.

The shape of the rotary housing 10 is not limited to its shape, such as a circle or a quadrangle, as long as the shape can accommodate the cord line 2 and the rotary terminal 11 therein. However, the cross-sectional shape of both the rotating housing 10 and the fixed housing 20 to have a rectangular shape, as shown in Figs. 3 and 4, whether the plug 1 of the present invention is in a connected state or blocked state It is desirable in that it can be checked immediately with eyes.

The fixed housing 20 is equipped with two fixed terminals 21 and two connection terminals 22. The fixed terminal 21 is a terminal which is in a state of being electrically connected to or separated from the rotary terminal 11 of the rotary housing 10 according to a change in the rotational position of the rotary housing 10.

That is, as shown in FIGS. 2 and 4, the fixed housing 20 has an annular groove 23 rotatably accommodating the rotary terminal 11 at a position corresponding to the protruding end of the rotary terminal 11. It is formed, the predetermined position of the annular groove 23 is provided with two fixed terminals 21 which are selectively connected to the two rotary terminals 11 are located in a position facing each other.

The illustrated embodiment shows an example in which each fixed terminal 21 is composed of two opposing conductive metal plates 21A, in which two metal plates are provided with each rotating terminal 11 inserted into an annular groove 23. When sandwiched between 21A, the state is connected to electricity, and when out of the metal plate 21A, electricity is cut off.

Accordingly, when the rotary housing 10 is rotated, the rotary terminal 11 rotates to the left and right along the same trajectory as the annular groove 23 with respect to the fixed terminal 21 having a relatively fixed position. 11) and when the fixed terminal 21 meets, for example, when the rectangular rotary housing 10 and the fixed housing 20 are both located in the horizontal direction (left state of Fig. 3) is a state of electrical connection The other position (right side of Fig. 3) is in the blocking state.

In addition, the cross-section of the rotary terminal 11 is preferably formed in an arc shape that fits snugly into the annular groove 23 so that the relative rotational movement of the rotary terminal 11 relative to the annular groove 23 can be made smoothly. Two metal plates 21A facing each other of the fixed terminal 21 into which the terminal 11 is inserted may also be formed in an arc shape so that the rotary terminal 11 can be inserted and removed smoothly.

The connection terminal 22 is electrically connected to the lower end of each fixed terminal 21. This connecting terminal 22 is a terminal that allows electricity from the outlet to the fixed terminal 21, the upper end of the connecting terminal 22 is built in the fixed housing 20 is fixedly connected to the fixed terminal 21, but The lower end protrudes from the fixed housing 20 like the connection terminal of the general plug, and can be inserted into the two connection ports of the outlet.

According to the plug 1 of the present invention as described above, when the rotary housing 10 is rotated with respect to the fixed housing 20, the rotary terminal 11 and the fixed terminal 21 is electrically connected and the rotary terminal ( 11) and the fixed terminal 21 can be freely switched between the disconnection state is electrically separated. Therefore, in the case of the electrical appliance with the plug 1 of the present invention attached to the cord wire 2, there is no need to remove the plug 1 from the outlet to prevent standby power consumption, and only the rotary housing 10 is blocked. Just put it back in position.

The rotatable assembly of the rotating housing 10 to the fixed housing 20 is rotatable, the rotating housing 10 can be rotated with respect to the fixed housing 20 so as to switch between the electrical connection state and the disconnected state. The present structure is not particularly limited.

For example, the rotatable assembly structure of the rotating housing 10 and the fixed housing 20 includes a fixed housing so as to be rotatably inserted into the shaft 12 and the shaft 12 elongated in the rotating housing 10. 20 of the concave groove 13 and the projection 25, the rotating housing 10 and the fixed housing 20 formed on the surface of the shaft hole 24, the rotating housing 10 and the fixed housing 20 in contact with each other. An elastic ring 26 made of elastic rubber or the like that provides elasticity to the assembly, an elastic ring receiving hole 27 formed at an end of the shaft hole 24 to accommodate the elastic ring 26, and an elastic ring 26. It can be configured to include an assembly screw 28 that is fastened to the shaft 12 through the flexible assembly of the rotating housing 10 and the fixed housing 20.

Specifically, the shaft 12 is formed to protrude a predetermined length from the center of the rotary housing 10 toward the fixed housing 20, the cross section of the shaft is circular to be rotatable about the shaft hole 24, the center of the 12A of screw holes to which said assembly screw 28 is fastened are formed in sufficient depth. The diameter of the shaft 12 is large enough to be rotatably fitted in the shaft hole 24 and has a diameter smaller than the diameter of the annular groove 23.

The shaft hole 24 is formed to penetrate the center of the fixed housing 20 to accommodate the shaft 12 rotatably, the rotating housing 10 is the shaft 12 is rotated relative to the shaft hole 24 Thereby rotating relative to the fixed housing 20.

The rotatable assembly structure of the rotating housing 10 and the fixed housing 20 has a shaft hole 24 in a state in which the shaft 12 is inserted into the shaft hole 24 so that the rotating housing 10 does not fall out of the fixed housing 20. It is also sufficient to fasten the screw having a head larger than the diameter of the screw hole to 12A.

However, when the user rotates the rotary housing 10, it is possible to intuitively check whether the rotational position has reached the connected state or the blocked state, and include a structure to prevent the rotary housing 10 from being rotated in the middle position. It is preferable.

That is, the concave grooves 13A and 13B are formed at positions facing each other on the surfaces of the rotating housing 10 in contact with the fixed housing 20, and similarly, the surfaces of the fixed housing 20 in contact with the rotating housing 10 are formed. The projections 25A and 25B are formed to face each other at positions corresponding to the recessed grooves 13A and 13B, so that the recessed grooves 13A and the projections 25A and the recessed grooves 13B and the projections 25B fit together. When the rotary housing 10 is rotated to the biting position (left state in Fig. 3), the plug 1 is set in the connected state, and the recess 13A and the protrusion 25B and the recess 13B and the protrusion 25A are set. When the rotary housing 10 is rotated to a position where the meshes engage with each other (the right state of FIG. 3), it is preferable to set the blocking state.

When the rotary housing 10 is in the connected state and the blocked state, the rotary housing 10 and the fixed housing 20 are in close contact, but when the rotary housing 10 is not in the connected state and the blocked state, the recess 13 and the protrusion ( Since the 25 is not interlocked with each other, the space between the rotary housing 10 and the fixed housing 20 is increased by a distance corresponding to the height of the protrusion 25, such a rotary housing 10 and the fixed housing 20. The rotary housing 10 and the fixed housing 20 are assembled by way of an elastic ring 26, for example, to provide elasticity to the expansion and contraction between them.

The elastic ring 26 provides elasticity to press the fixed housing 20 toward the rotating housing 10 and is fitted into the elastic ring receiving hole 27. The elastic ring receiving hole 27 is extended to the fixed housing 20 adjacent to the shaft 12 at the lower end of the shaft hole 24.

The rotating housing 10 and the fixed housing 20 fit the shaft 12 in the shaft hole 24 and the elastic ring 26 in the elastic ring receiving hole 27 to assemble the assembly screw 28 to the elastic ring 26. And it is assembled by fastening over the screw hole 12A of the shaft 12.

According to such a configuration, the elastic ring 26 is applied to the side to close the rotary housing 10 to the fixed housing 20, so that the recess 13 and the projection 25 are not engaged, that is, the rotating housing When the rotating housing 10 is rotated in a state where the 10 is not in the connected state or the rotational position of the blocked state, the concave groove 13 and the protrusion 25 are engaged when the connected state or the blocked state is reached. The rotating housing 10 spaced apart from the fixed housing 20 by a distance corresponding to the height of the 25 is completely in contact with the fixed housing 20 by the elasticity of the elastic ring 26, the user is in close contact with such Detects the moment and immediately knows that the rotary housing 10 is in a connected state or a blocked state.

In the illustrated embodiment, both the rectangular rotating housing 10 and the fixed housing 20 are horizontally connected, and the rotating housing 10 and the fixed housing 20 cross each other and are positioned crosswise. It will be in a blocked state, and when the rotating housing 10 is rotated 90 degrees left and right to show an example of the connection state and the blocking state is converted.

In addition, in the illustrated embodiment, an example in which the concave groove 13 is formed in the rotating housing 10 and the protrusion 25 is formed in the fixed housing 20 is illustrated, but the protrusion is formed in the rotating housing 10. Naturally, it is also possible to form concave grooves in the fixed housing 20.

The spring 29 may be used instead of the elastic ring 26 as the configuration in which the rotary housing 10 and the fixed housing 20 are elastically elastic enough to accommodate the height of the protrusion 25. That is, as shown in Figure 5, instead of the elastic ring receiving hole 27 to form a spring receiving hole (27A) in the same position and insert the spring 29 therein, the screw hole (30A) in the center The structure which covers the formed cover 30 and fastens the assembly screw 28 over the screw hole 30A of the cover 30 and the screw hole 12A of the shaft 12 can be used.

The plug 1 of the present invention illustrated in FIGS. 1 to 5 is a plastic synthetic resin integrally molded and fixed housing 20 in a state in which the cord wire 2 and the rotary terminal 11 are embedded in the rotary housing 10. ) Shows an example in which the plastic synthetic resin is integrally molded with the fixed terminal 21 and the connecting terminal 22 embedded therein. Such an integrated plug is shipped integrally mounted on a cord line when manufacturing an electrical appliance. It is a plug.

As shown in FIG. 6, the plug 1 of the present invention may be formed so that a user can directly connect and use the cord wire 2 as needed. That is, in forming the rotating housing 10, the upper end of the rotary terminal 11 is exposed to the outside, and the cord wire connecting screw 14 that connects the cord wire 2 to the upper end of the rotary terminal 11 is mounted. On the other hand, the upper end of the exposed rotary terminal 11 may be electrically insulated by the cap 15 consisting of two upper and lower parts assembled to the rotary housing 10.

Therefore, the user removes the cap 15, connects the cord wire 2 to the cord wire connecting screw 14, and then assembles the cap 15 again. 1) can be attached. In FIG. 6, reference numeral 16 denotes a screw hole for screwing two caps up and down, and reference numerals 17 and 18 denote locking grooves and locking projections respectively for firmly fixing the cap 15 to the rotating housing 10. , 2A denotes a hole into which the cord line 2 is inserted. In addition, although not shown, the rotating housing 10 and the fixed housing 20 may also be configured by two members so as to be separated and assembled.

The plug according to the present invention described above has a connection state in which the rotary terminal 11 and the fixed terminal 21 are electrically connected as the rotary housing 10 rotates, and the rotary terminal 11 and the fixed terminal 21 are electrically connected. Since it is possible to freely switch between the blocked state to be cut off, when the electrical appliance is not in use, there is no need to remove the plug from the outlet, simply turn the rotating housing 10 to the blocked state is not consumed standby power. Therefore, it is expected that the power saving of standby power for electrical appliances, which has not been practically insufficient due to the inconvenience of plugging and unplugging the plug into the outlet, can be realistically performed.

Claims (3)

A rotating housing 10 accommodating two rotary terminals 11 to which two cord wires 2 for supplying electric power are connected; And two fixed terminals 21 electrically connected to or separated from the two rotary terminals 11 and the respective fixed terminals 21 according to the rotation of the rotary housing 10 to the connection ports of the outlets. Two connecting terminals (22) each inserted therein, the fixed housing (20) being assembled such that the rotary housing (10) is rotatable; As the rotary housing 10 rotates, a connection state in which the rotary terminal 11 and the fixed terminal 21 are electrically connected, and the rotary terminal 11 and the fixed terminal 21 are electrically blocked. Power-saving plug, characterized in that the switching state. According to claim 1, The rotary housing 10 and the fixed housing 20 is inserted into the shaft hole 24 formed through the fixed housing 20, the shaft 12 is elongated from the rotary housing 10 And rotatably assembled, and the fixed terminal 21 is installed in the annular groove 23 formed around the shaft hole 24 at a position corresponding to the protruding end of the rotary terminal 11, and the rotary terminal 11. ) Is rotatably received in the annular groove 23 is connected to or separated from the fixed terminal 21 in accordance with the rotation of the rotary housing 10, the rotation housing 10 and the fixed housing 20 The concave groove 13 and the protrusion 25 which are engaged with each other at a position corresponding to the connection state and the blocking state are formed on the surfaces that are in contact with each other, and the rotating housing 10 and the fixed housing 10 are mutually intersected. It includes an elastic ring 26 or a spring 29 to press against the contact Uh energy-saving plug, characterized in that. According to claim 1 or 2, wherein the upper end of the rotary terminal 11 is exposed from the rotating housing 10, the exposed rotary terminal 11 is equipped with a cord wire connecting screw 14 And the detachable cap 15 is assembled to the rotary housing 10 to electrically insulate the exposed rotary terminal 11.