KR20100041659A - Easily ejectable, and easily distinguishable plug - Google Patents

Abstract

PURPOSE: An electrical plug is provided to allow a user to unplug a plug easily by using a principles of a lever. CONSTITUTION: At least a pair of terminal pins for an outlet is projected to the front of a plug body(100). A separation operation lever(200) is combined in the plug body and is rotatable. The separation operation lever has a first and second lever body. The first lever body is located at one side of a rotating shaft. The second lever body is located at the other side of the rotating shaft.

Description

Electrical plugs for easy removal and identification {EASILY EJECTABLE, AND EASILY DISTINGUISHABLE PLUG}

The present invention relates to an electrical plug, and more particularly, to an electrical plug having a structure that can be easily separated from an electrical outlet, while providing an identification function for a corresponding electrical / electronic device in which the plug is used. will be.

Typically, power supply or disconnection of various electric / electronic appliances is achieved by connecting or disconnecting a plug to an outlet. As such, in using the electric / electronic apparatus, the plug must be connected to the outlet or separated from the outlet from time to time, and for convenience of use, it is desirable to have a structure in which the plug can be easily and simply separated from the outlet.

However, plug manufacturers typically manufacture plugs with a clamping force far above the criterion in order to meet the clamping force of a certain standard (KS specification is 2 kg) between the plug and the outlet. Accordingly, users are inconvenient to apply more force than necessary when disconnecting the plug from the outlet. In addition, due to such inconvenience, most users are left with their plugs connected to the outlets. Such neglect causes loss of standby / consumption power.

Korean Registered Patent No. 0707690, Korean Laid-Open Patent No. 2006-110470, Korean Laid-Open Patent No. 2005-69851 and the like disclose a plug for solving such problems.

According to Korean Patent No. 0707690, the plug may be automatically taken out from the outlet by the elastic restoring force of the spring provided when the button is separately installed. However, the plug of the automatic extraction method may have the elastic action force of the extraction spring. Determination is difficult, a lot of force is required when inserting the plug, and there is a problem in that the configuration is complicated and not easy to manufacture.

According to Korean Patent Laid-Open No. 2006-110470, the plug can be easily separated from the outlet by a binding push rod that performs the lever movement. However, this plug is difficult to meet domestic and international standards or standards due to interference of the terminal and the grounding part, because a part of the binding rod is located on the connection surface of the outlet and the plug, the structure is complicated, and there is a risk of leakage.

According to Korean Patent Laid-Open Publication No. 2005-69851, since a strong force must be applied to the pusher to advance the pusher toward the outlet, there is a disadvantage in that the operation force is small and the use is inconvenient.

In addition, there is a pull-integral plug that can be pulled fingers, but the disadvantage is that the appearance is too large and the benefit of the force is less.

On the other hand, the outlet is coupled to the plug is typically provided in the form of a multi-tap having a plurality of plug connectors. However, since the plugs used in most electric / electronic devices have substantially the same or very similar shape according to a predetermined standard, it is difficult to intuitively distinguish which products are the electric / electronic devices connected to the outlet, It is often left untouched.

Alternatively, Korean Utility Model Registration No. 0558997 discloses a plug identification table attached to the wire cord for identification of the plug. However, the plug identification table is not only inconvenient to use because the user has to attach it to the wire cord individually, and there is a vulnerability that the plug identification tag can be easily lost from the wire cord due to friction with an adjacent wire cord.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric plug having a structure capable of easily detaching the plug on the principle of a lever by applying a force in a direction of separating the plug from the outlet. .

Another object of the present invention is to provide an electrical plug that can be formed on the plug itself identification indicator for distinguishing the electrical / electronic device.

In order to achieve the above object, an electrical plug according to the present invention includes: a plug body having at least one pair of outlet pins inserted into the outlet protruding forward; And a stripping operation lever rotatably coupled to the plug body and having a first lever body portion positioned at one side and a second lever body portion positioned at the other side with respect to the pivot center axis. The second lever body portion is pivoted forward of the plug body in conjunction with the operation of flipping the rear of the plug body to provide leverage of the lever that can act on the outer surface of the outlet.

The stripping operation lever, the end of the first lever body portion is located on one side with respect to the center line of the body portion coupled to the outlet in the plug body, it is preferable that the rotational center axis of the stripping operation lever is located on the other side.

The electric plug further includes a connection cord bending buffer unit provided at the rear of the plug body to wrap and protect the wire, and the end of the second lever body portion rotates in a section between the pivot center shaft and the connection cord bending buffer unit. It is preferable to be installed as possible.

The first lever body portion of the stripping operation lever may be provided in a cap structure covering the rear portion of the plug body.

It is preferable that an identification display area for identifying an electric / electronic device connected to the plug is provided on the flat surface of the cap structure.

Alternatively, the first lever body portion may be provided in the form of a ring or bar installed to surround the rear portion of the plug body, and may be installed to be guided by a corresponding rotation guide.

The plug body may be provided with an identification display area for identifying an electric / electronic device connected to the plug.

A pair of fastening grooves (or fastening protrusions) are formed on both sides of the plug body at the point where the pivot center axis is located, and the stripping operation lever is provided in the fastening groove (or fastening protrusion) of the plug body. A fastening protrusion (or fastening groove) to be fitted may be formed.

The stripping operation lever may be coupled to the plug body by a fastening pin that crosses the plug body at the point where the pivot center axis is located.

Preferably, the stripping operation lever is elastically biased in a direction in which the stripping operation lever is restored when it is folded backward of the plug body.

The electric plug may further include an operation display lamp mounted on one side of the plug main body to be electrically connected to the terminal pin to display an energized state when the plug is connected to the outlet.

The electric plug may further include a connection display unit for displaying a connection state with the outlet. The connection display part includes a movable member slidably installed in the plug main body, and an elastic member providing elastic force in a direction in which one end of the movable member protrudes from the surface of the plug main body to the surface where the terminal pin is located. It is preferable that the movable member is pushed when the connection between the outlet and the outlet is performed so that the other end is exposed to the outside of the plug body.

According to another aspect of the invention, the plug body; At least one pair of outlet pins for protruding forward of the plug body; A cap member coupled to cover a rear portion of the plug body and having a flat surface facing the rear portion of the plug body; And an identification display unit formed on a flat surface of the cap member and providing an identification function for an electric / electronic device connected to the plug.

According to another aspect of the invention, the plug body; At least one pair of outlet pins for protruding forward of the plug body; And an identification display unit formed on the plug body and providing an identification function for an electric / electronic device connected to the plug.

According to the present invention, since the stripping operation is performed by wetting the stripping operation lever in the direction in which the plug is separated from the outlet, the plug can be separated from the outlet with little force. Therefore, the work of leaving the plug coupled to the outlet is reduced, thereby reducing standby / power consumption.

According to another aspect of the present invention, the identification phrase or advertisement image of the corresponding electrical / electronic products may be displayed on the plug itself in the manufacture and delivery of the plug, so that the user can easily distinguish the device connected to the plug. In addition, manufacturers of electrical and electronic equipment can benefit from the promotion of specific brands or products.

In addition, according to the present invention, there is an advantage that it is easy to visually check whether the plug is energized through the operation display lamp or the connection display unit provided in the plug body.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is an exploded perspective view showing the configuration of an electrical plug according to a first embodiment of the present invention, Figure 2 is a perspective view of the combination of FIG.

1 and 2, the electric plug includes a plug body 100 and a stripping operation lever 200 coupled to a rear portion of the plug body 100.

The plug body 100 includes a body portion 102 made of an insulating resin and at least one pair of outlet pins 101 for inserting an outlet extending to protrude forward of the body portion 102. The shape of the plug body 100 is not limited to the example illustrated in the drawings, and may be modified into various shapes (eg, straight, cylindrical, square, etc.) provided according to various standards and standards at home and abroad. Furthermore, the plug body 100 may be provided in the form of a body case of a conventional AC-DC adapter. As is widely known in the art, since the AC-DC adapter has a structure in which at least one pair of outlet pins protrudes from one surface of the main body case, the main body case may be called a plug main body.

The removal operation lever 200 is rotatably coupled to the front and rear directions with respect to the plug body 100, and is disposed on the lower portion of the first lever body portion 200a and the lower portion which are positioned at an upper side with respect to the rotation center axis C _R. It has a structure divided into the second lever body portion (200b) located.

The first lever body portion 200a of the removal operation lever 200 has a cap structure having an outer flat surface 202 covering the rear portion 103 of the plug body 100. The flat surface 202 of the cap structure is provided with an identification display unit for displaying an advertisement image and the like for the identification of a corresponding electric / electronic device connected to the plug.

According to the second embodiment of the present invention, as shown in FIG. 3, the stripping operation lever 200 ′ is a substantially ring surrounding the rear portion 103 so that the rear portion 103 of the plug body 100 is exposed to the outside. It may be made of a structure. In this case, the identification display is formed on the rear portion 103 of the plug body (100). When the plug body 100 is configured in the form of a conventional straight plug, the identification display portion is formed on one flat portion of the plug body 100.

As shown in FIG. 4, in the stripping operation lever 200, an end of the second lever body part 200b is installed to be placed on an outer surface of the outlet 300 when the electric plug and the outlet 300 are coupled to each other. . According to such a configuration, the second lever body portion 200b is interlocked with the operation of flipping the first lever body portion 200a in the rear of the plug body 100, that is, in the direction opposite to the extending direction of the terminal pin 101. The end is rotated forward of the plug body 100 to press the outer surface of the outlet 300 to provide the leverage (Leverage). When the removal operation lever 200 is regarded as one lever, the end of the first lever body part 200a (hereinafter referred to as the 'operation part') 201 is a force point, and the pivot center axis C _R is a support point, An end portion of the second lever body portion 200b provides an action point.

In order to conveniently perform the operation of flipping the removal operation lever 200 to the rear of the plug main body 100, the operation part 201 of the first lever body part 200a is provided with a concave inlet groove through which a finger tip can be fitted. desirable.

Based on the center line C _B of the body portion 102 that attaches and detaches with the outlet 300 in the plug body 100, in order to effectively obtain the force of the lever, the operation portion of the first lever body portion 200a. 201 is located on one side of the center line C _B , and the pivotal axis C _R of the stripping operation lever 200 should be located on the other side of the center line C _B. In addition, the length from the center of rotation (C _R ) to the end of the second lever body portion (200 b) is the first lever body from the center of rotation (C _R ) so that the detachment operation lever (200) can be flipped with little force. It is preferable that it is short compared with the length to the operation part 201 of the part 200a.

In view of the above, the second lever body portion 200b is provided at the rear side of the plug body 100 and is connected to the cord bending buffer 106 and the pivot center for wrapping and protecting the electric cord 1. It is preferable to be rotatably installed in the section S between _R ). In addition, it is preferable that the second lever body portion 200b forms a symmetrical structure at both rear sides of the plug body 100 and the ends thereof are interconnected to provide a balanced lever force. Here, it is preferable that the end connection portion of the second lever body portion 200b is covered by the connection cord bending buffer 106 so as not to be exposed to the outside in order to avoid interference with the adjacent plug.

A pair of fastening grooves which are symmetrical with respect to both sides of the point where the pivot center axis C _R is located in the plug main body 100 so as to enable rotational coupling between the plug main body 100 and the stripping operation lever 200. 105 is formed, the removal operation lever 200 is formed with a fastening groove 105 and a fastening protrusion 203 that can be fitted. Here, the present invention may be modified so that the fastening protrusion 203 is formed in the plug body 100 and the fastening groove 105 is formed in the stripping operation lever 200. Alternatively, the plug body 100 is provided with a fastening pin (not shown) traversing the trailing portion, and the stripping operation lever 200 is connected to the fastening pin so that the plug body 100 and the stripping operation lever 200 are provided. Rotational coupling may be made between the livers.

For ease of use, the removal operation lever 200 is preferably elastically biased (Bias) in the direction to be restored when it is folded back of the plug body (100). To this end, an inclined surface (refer to 104 in FIG. 5) of a predetermined angle is formed at a portion where the body portion 102 and the rear portion 103 of the plug body 100 are adjacent to each other, and the inside of the stripping operation lever 200 to correspond thereto. An inclined surface (see 200a in FIG. 5) is also formed on the surface. According to this structure, the inclined surface 104 of the plug main body 100, which is in contact with each other when the stripping operation lever 200 is flipped backward, and the inclined surface 104 of the stripping operation lever are shifted from each other. The elastic repulsion force acts in the direction of restoring the stripping operation lever 200 to its original state. Here, the body portion 102 and the stripping operation lever 200 of the plug body 100 is preferably composed of a member having a predetermined appropriate elasticity.

Alternatively, the removal operation lever 200 may be coupled to a fastening pin (not shown) provided with an elastic piece or a coil spring to provide an elastic rotation restoring force.

Alternatively, it is also possible to change the position of the fastening protrusion 203 so as to give the pivotal central axis C _' eccentric from the correct position to provide an elastic rotation restoring force to the stripping operation lever 200.

In addition, the plug main body 100 is provided with a connection display unit 150 for displaying the connection state of the plug. As shown in FIG. 6A, the connection display unit 150 is movable to a surface on which the rod-shaped movable member 151 and the terminal pin 101 are located, which are slidably installed in the plug body 100. It includes an elastic member 152 in the form of a coil spring to provide an elastic force to protrude the lower end of the member 151. According to this configuration, the movable member 151 is pushed in the axial direction as shown in FIG. 6B when the plug body 100 and the outlet 300 are fastened, and the upper end thereof is the plug body ( Since it is exposed to the outside of the 100) it can indicate the connection between the electrical plug and the outlet.

FIG. 7 illustrates a process of removing the electric plug in the engaged state of FIG. 4. Referring to FIG. 7, the end of the second lever body portion 200b presses the outer surface of the outlet 300 by the operation of flipping the stripping operation lever 200 toward the rear of the plug main body 100 to exert the force of the lever. In this case, it can be seen that the body portion 102 of the plug body 100 is separated upward from the outlet 300 by the reaction force generated between the electric plug and the outlet 300. At this time, since the direction in which the stripping operation lever 200 is flipped substantially coincides with the direction in which the electric plug is separated from the outlet 300, the operation is convenient and the power of the lever can be easily removed to remove the plug.

On the other hand, one side of the plug main body 100 is preferably equipped with an operation display lamp 107 for displaying the energized state of the plug. The operation display lamp 107 is connected to the terminal pin 101 connected to the electric cord 1 in parallel with a predetermined load 108, for example, as shown in FIG. can do. In order to selectively provide such an operation display function, a predetermined switch 109 may be connected in series between the terminal pin 101 and the operation display lamp 107.

As described above, the electric plug provided according to the present invention is provided with an identification mark by the flat surface 202 constituting the removal operation lever 200 or the rear surface 103 of the plug body 100. In the identification display unit, as shown in (a) to (f) of FIG. 9, a phrase for identifying a corresponding electric / electronic device connected to a plug is printed, and an advertisement image or a logo for promoting a specific brand is also printed. Can be printed.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

1 is an exploded perspective view showing the configuration of an electrical plug according to a first embodiment of the present invention.

2 is a perspective view of the combination of FIG.

3 is a perspective view showing the configuration of the electrical plug according to a second embodiment of the present invention.

Figure 4 is a side view showing a state in which the electrical plug provided in accordance with the present invention coupled to the outlet.

5 is a plan view illustrating a configuration in which the plug body and the stripping operation lever are elastically rotatable and coupled.

6 is a cross-sectional view showing the configuration of a connection display portion provided in the plug body.

FIG. 7 is a side view illustrating a process of removing an electric plug from an outlet in FIG. 4.

8 is a connection diagram showing a configuration example of an operation display lamp provided in the electric plug according to the present invention.

9 is a plan view showing an example of an identification phrase and an advertisement image provided in the electric plug according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS OF THE DRAWINGS

100: plug body 101: terminal pin

105: fastening groove 106: connection cord bent buffer

107: operation display lamp 150: connection display

200,200 ': Removing operation lever 203: fastening protrusion

300: outlet C _R , C _{R '} : center of rotation

Claims (14)

A plug body in which at least one pair of outlet insertion terminal pins protrude forward; And And a stripping operation lever coupled to the plug body rotatably and having a first lever body portion located on one side and a second lever body portion located on the other side with respect to the pivot center axis. The second lever body portion is pivoted forward of the plug body in conjunction with the operation of flipping the first lever body portion to the rear of the plug body, thereby providing leverage of the lever that can act on the outer surface of the outlet. Electric plug. The method of claim 1, The plug body is characterized in that the end of the first lever body portion is located on one side with respect to the center line of the body portion coupled to the outlet, the rotational axis of the stripping operation lever is located on the other side. The method of claim 2, It is further provided with a rear end of the plug body is connected to the cord bend cushioning to protect the wire; And the second lever body part is rotatably installed in a section between the pivot center shaft and the connection cord bending buffer. The method according to claim 1 or 2, The first lever body portion of the stripping operation lever has an electric plug characterized in that it has a cap (Cap) structure covering the back portion of the plug body. The method of claim 4, wherein And an identification display area for identifying an electric / electronic device connected to the plug on a flat surface of the cap structure. The method according to claim 1 or 2, The first lever body portion has an electric plug, characterized in that it has a ring structure which is installed to surround the back portion of the plug body. The method of claim 6, And the plug main body is provided with an identification display area for identifying an electric / electronic device connected to the plug. The method according to claim 1 or 2, A pair of fastening grooves (or fastening protrusions) which are symmetrical to each other is formed on both sides of the plug body at the point where the pivot center is located, and the stripping operation lever is fitted into the fastening grooves (or fastening protrusions) of the plug body. Electrical plug characterized in that the fastening protrusion (or fastening groove) is formed. The method according to claim 1 or 2, The stripping operation lever is an electric plug, characterized in that coupled to the plug body by a fastening pin across the plug body at the point where the pivot center axis is located. The method according to claim 1 or 2, And the stripping operation lever is installed to be elastically biased in a direction in which the stripping operation lever is restored to the rear of the plug main body. The method according to claim 1 or 2, And an operation display lamp mounted on one side of the plug body to be electrically connected to the terminal pin to display an energized state. The method according to claim 1 or 2, A movable member slidably installed in the plug body; In the plug main body is provided with an elastic member for providing an elastic force in the direction in which one end of the movable member to the surface where the terminal pin is located, And the movable member is pushed when the plug body and the outlet are fastened so that the other end thereof is exposed to the outside of the plug body. Plug body; At least one pair of outlet pins for protruding forward of the plug body; A cap member coupled to cover a rear portion of the plug body and having a flat surface facing the rear portion of the plug body; And And an identification display unit formed on a flat surface of the cap member and providing an identification function for an electric / electronic device connected to the plug. Plug body; At least one pair of outlet pins for protruding forward of the plug body; And And an identification display unit formed in the plug body and providing an identification function for an electric / electronic device connected to the plug.

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