WO2006082882A1

WO2006082882A1 - Cover plate for power supply socket, adapter for connection with power supply socket employing it, and power supply plug

Info

Publication number: WO2006082882A1
Application number: PCT/JP2006/301752
Authority: WO
Inventors: Yoshinobu Ito
Original assignee: Yoshinobu Ito
Priority date: 2005-02-04
Filing date: 2006-02-02
Publication date: 2006-08-10
Also published as: JPWO2006082882A1

Abstract

A cover plate of a power supply socket having an anti-tracking function and capable of being equipped with the terminals of various communication signal lines, an adapter for connecting a power supply plug to a socket employing that cover plate, and a power supply plug. In the cover plate for a power supply socket, an annular fitting groove recessed from the surface is formed around an opening provided to expose the power supply socket body, and a groove part terminal connected with a communication line is provided on the inner wall of the fitting groove. When the fitting ridges of the adapter and the power supply plug are fitted in the fitting groove, tracking is prevented by preventing intrusion of dust. Furthermore, a communication line is connected with an apparatus through the power supply plug when a ridge terminal provided at the fitting ridge is connected with the groove terminal.

Description

Power outlet cover plate and adapter and power plug to connect to the power outlet using it

Technical field

TECHNICAL FIELD [0001] The present invention relates to a power outlet cover plate, an adapter connected to a power outlet using the cover plate, and a power plug. More specifically, the present invention has a structure that enables a tracking prevention function. A cover plate for a power outlet that can be equipped with a terminal for a signal line and the like, and an adapter for connecting a power plug to a power outlet using the cover plate, through which the power plug is inserted. Tracking can be prevented by plugging it directly into a power outlet using this cover plate and an adapter that can more effectively prevent tracking, and various communication signals, TV signals, etc. can be connected simultaneously with the power supply. It relates to a power plug that can Background art

[0002] In a power outlet of a commercial power source, dust that has entered from a plug insertion portion is carbonized to form a current path and cause a short circuit or the like, so-called tracking may occur, which may lead to a fire. Despite the desire for anti-tracking measures in this situation, it is a problem involving a wide variety of electrical appliances, and its spread is delayed due to standards and costs.

As for tracking prevention, for example, Patent Document 1 provides a conductor in a form that separates the terminals between a pair of terminals on both the outlet and the plug, and connects them to the ground to generate tracking. Even so, it is disclosed that a short circuit is made between the terminals and a ground that does not cause a short circuit. This technology has the effect of detecting the occurrence of tracking and preventing a fire, but there is no configuration that fundamentally prevents tracking, that is, prevents dust from entering.

Patent Document 2 discloses a technique for preventing dust from entering because a plug is inserted into an outlet and rotated to lock the plug and prevent the plug from being pulled out. However, this technology has the problem that the structure of the plug is complicated and the number of parts is large, resulting in high manufacturing costs. [0003] In addition to power being supplied by inserting a power plug into a commercial power outlet, some electrical devices do not operate unless information is supplied through another line. For example, in the Internet using a personal computer, a technology for transmitting and receiving communication information using a commercial power line, such as a PLC, has been developed, but at present, an Internet dedicated line is required. . In apartments, in addition to the power supply, the television must be connected to the antenna terminal provided in each house. In the future, with the progress of an advanced information society, it will be necessary to connect various lines for supplying various information to electrical equipment. However, it is not aesthetically pleasing and safe to connect such various lines individually to electrical equipment. Therefore, an outlet / plug set that can connect various necessary lines simultaneously with a single plug is desirable. Since a commercial power supply is essential for general electrical equipment, it is convenient to integrate outlets that integrate various line terminals into commercial power outlets.

[0004] Regarding a technique for adding a function of connecting a communication line other than a commercial power source to a power outlet, for example, in Patent Document 3, an optical fiber terminal is provided in a power outlet and a power plug corresponding to this is inserted. At the same time, a technique for connecting an optical fiber line is disclosed.

FIG. 14 is a perspective view showing an outlet and a plug described in Patent Document 3. The outlet 100 is provided with a female power supply terminal (not shown) for supplying a normal commercial power supply. An optical fiber connection hole having a ferrule (not shown) built in the upper part of the plug insertion portion 101 is provided. 102 is provided. On the other hand, the plug 110 is provided with a male power supply terminal 111 and an optical fiber terminal 112, and when the plug 110 is inserted into the outlet 100, the commercial power supply and the optical fiber are connected simultaneously. From the end of the plug 110, the power cable 113 and the optical fiber 114 of the commercial power supply are grouped together (in FIG. 10, the power cable 113 and the optical fiber 114 are shown separately for explanation). Because it is connected to, wiring will not be complicated.

However, since this outlet has the plug insertion portion 101 and the optical fiber one connection hole 102 formed in the same insertion portion forming member (outlet body) 103, various connection holes other than the optical fiber are to be provided. In this case, the outlet body 103 must be redesigned, and lacks versatility. Also, it does not have a tracking prevention function. The connection to the outlet is also complicated, which is not preferable.

Patent Document 1: Japanese Patent Application Laid-Open No. 2003-921636

Patent Document 2: Japanese Patent Laid-Open No. 2000-340286

Patent Document 3: JP-A-7-13043

Disclosure of the invention

Problems to be solved by the invention

[0007] The present invention has been made to solve the above problems, has a structure capable of preventing tracking, and can further include line terminals for various communication signals, television signals, and the like. A power outlet cover plate and an adapter for connecting a power plug to an outlet using the cover plate, and an adapter capable of providing an anti-tracking effect by inserting the power plug through the power plug; and The purpose is to provide a power plug that can prevent tracking by directly plugging into an outlet using this cover plate, and can connect various communication signals, TV signals, etc. with a single plug at the same time as the power supply. To do.

Means for solving the problem

[0008] In order to solve the above problems, a cover plate for a power outlet according to the present invention is a cover plate for a power outlet provided with an opening so that a main body of a power outlet having a pair of plug insertion portions is exposed. Because

An annular groove surrounding the opening is formed around the opening, and a fitting groove recessed in a surface force concave shape is formed.

It is characterized in that a plurality of plug locking portions capable of locking the plug locking claws are formed on the groove wall outside the fitting groove portion.

[0009] In addition, a communication terminal for connecting the indoor wiring of the communication line is provided on the back surface of the power outlet cover,

A groove terminal is provided on the inner groove wall of the fitting groove,

The communication terminal and the groove terminal are each connected by a cover wiring.

[0010] Further, the adapter according to the present invention is a power source using the cover plate for a power outlet. An adapter that connects the power plug to an outlet,

A plug terminal connected to the power outlet; and a outlet terminal connected to the power plug.

A pair of male power terminals;

The pair of male power terminals are surrounded by a frame, and include a fitting jetty formed in the same planar shape as the fitting groove so as to be fitted into the fitting groove.

A plug locking claw to be locked to the plug locking portion is formed at a position corresponding to the plug locking portion of the fitting groove on the outside of the fitting jetty portion,

The outlet terminal portion is provided with a pair of or multiple pairs of plug insertion portion power outlets facing vertically downward,

Around the power outlet is provided a dust-proof wall surrounding the frame,

When the pair of male power terminals are inserted into a plug insertion portion of a power outlet using the power outlet cover plate, the fitting jetty portion is fitted into the fitting groove portion, and the locking claw is engaged with the engagement claw. It is characterized by being locked to the stop.

A power plug according to the present invention is a power plug for connecting to a power outlet using the power bar plate having a communication line connecting function, and is provided with a pair of male power terminals. The power cord of a specific device to which power is to be supplied is connected to the type power terminal,

A fitting jetty formed in the same planar shape as the fitting groove so as to surround the pair of male power terminals and fit into the fitting groove;

A plug locking claw locked to the plug locking portion is formed at a position corresponding to the plug locking portion of the fitting groove on the outside of the fitting jetty portion,

A surface of the fitting jetty is provided with a jetty terminal at a position corresponding to the groove terminal of the fitting groove, and a cable of a predetermined device to transmit / receive communication signals is connected to the first jetty terminal. And

When the pair of male power terminals are inserted into a plug insertion portion of a power outlet using the power outlet cover plate, the fitting jetty portion is fitted into the fitting groove portion, and the plug locking claw is Locked to the plug locking portion, the jetty terminal is at the end of the groove The indoor wiring of the communication line is connected to a predetermined device through the communication terminal, the cover wiring, the groove terminal, the jetty terminal, and the cable simultaneously with the power supply.

The invention's effect

[0012] According to the present invention, it is possible to prevent tracking of an outlet of a commercial power supply, and it is possible to connect lines such as various communication signals and television signals with a single plug. In addition, the cover plate of the power outlet has a structure having these functions, and these functions can be easily added by simply replacing the cover plate of the existing outlet with the cover plate according to the present invention.

Brief Description of Drawings

FIG. 1 (a) is a perspective view in which a conventional outlet is attached to an indoor wall. (B) It is the perspective view which attached the outlet using the power outlet cover which concerns on this invention to the indoor wall. (C) It is a perspective view which shows the form which connects the electrical outlet of (b) and the conventional power plug through the adapter which concerns on this invention. (D) is a perspective view showing an embodiment in which the power plug according to the present invention is connected to the outlet of (b).

FIG. 2 is a perspective view of an outlet using the cover according to the present invention.

FIG. 3 is a perspective view of the fitting groove as seen from the surface force of the cover.

FIG. 4 is a perspective view of an adapter according to the present invention.

FIG. 5 is a cross-sectional view of a plug locking claw.

FIG. 6 is a perspective view of an outlet terminal portion of the adapter.

FIG. 7 is a perspective view showing another example of the outlet using the cover according to the present invention.

FIG. 8 is a perspective view of the fitting groove portion of FIG. 7 in which the surface force of the cover is also viewed.

FIG. 9 is a perspective view of a power plug according to the present invention.

FIG. 10 (a) is a front view of a cover according to the present invention. (B) is a side view of a cover according to the present invention. (C) It is a rear view of the cover concerning the present invention. (d) It is AA sectional drawing of (c).

FIG. 11 (a) is a front view of another embodiment of the cover according to the present invention. (B) It is a rear view of another Example of the force bar concerning this invention.

FIG. 12 (a) is a front view of an adapter according to the present invention. (b) Side surface of the adapter according to the present invention FIG. (C) It is a bottom view of the adapter which concerns on this invention.

FIG. 13 (a) is a front view of a plug according to the present invention. (b) A side view of a plug according to the present invention.

FIG. 14 is a perspective view of a conventional outlet and plug.

Explanation of symbols

1 Plug insertion part

2 Outlet body

3 Cover plate

4 opening

5 Mating groove

9 Locking claw

15 Locking hole

16 Plug locking part

32 Communication terminal

33 Signal line

34 Groove terminal

35 Cover wiring

40 adapter

43 Male power supply terminal

44 Mating protrusion

45 Plug locking claw

48 Plug insertion part

49 Dust barrier

50 plug

51 Male power supply terminal

52 Mating jetty

53 Plug locking claw

54 Jetty terminal BEST MODE FOR CARRYING OUT THE INVENTION

[0015] In addition to the original function of protecting the outlet, the power outlet cover plate according to the present invention includes a tracking prevention function and a communication line other than the power source (Internet circuit, optical fiber, TV, FM broadcast signal). , Grounding, etc.). Since the commercial power supply terminal portion has the same structure as the conventional one, the above functions can be easily added at low cost by replacing only the cover plate of the existing outlet.

FIG. 1 is a perspective view showing a comparison between a conventional outlet and an outlet using the cover plate according to the present invention in order to explain the outline of the present invention.

Figure 1 (a) shows a conventional outlet. A pair of plug insertion portions 1 for inserting a pair of male power terminals of the power plug is provided on the outlet main body 2 attached to a wall outlet attachment portion (not shown). A female power supply terminal (not shown) for supplying power is provided inside the plug insertion portion 1. The power outlet cover plate (hereinafter abbreviated as cover plate) 3 is provided with an opening 4 so that the outlet body 2 is exposed, and the other parts are protected.

[0017] FIG. 1 (b) is a power outlet using the cover plate for a power outlet according to the present invention. The outlet body 2 provided with the plug insertion portion 1 and the opening 4 provided in the cover plate 3 are shown in FIG. It is the same as the conventional outlet shown in (a). In the cover plate 3 of the present invention, a fitting groove 5 is formed so as to surround the opening 4, and a tracking prevention function and a communication line connection function are formed in the fitting groove 5 as described later. .

FIG. 1 (c) shows a configuration in which an outlet using the cover plate 3 of the present invention and a conventional power plug (hereinafter abbreviated as a plug) 30 are connected via an adapter 40 according to the present invention. As will be described later, the adapter 40 is provided with a fitting jetty, which is connected to an outlet so that a tracking function can be obtained by fitting into the fitting groove 5 in FIG. 1 (b). Since the plug insertion portion (not shown) for inserting the plug 30 into the adapter 40 faces downward and is surrounded by a dust-proof wall, the risk of dust entering from the plug insertion portion is reduced. And has an effect of preventing tracking.

FIG. 1 (d) shows a power plug 50 according to the present invention connected to a plug using the cover plate 3 of the present invention. The form connected to the cent is shown. As will be described later, the power plug 50 is also provided with a fitting jetty and has a tracking prevention function, and the fitting jetty is provided with a communication line connection function. Sent to device with code 57.

Hereinafter, the structure and operation of the present invention will be described in detail.

FIG. 2 is a perspective view showing an outlet using the cover plate according to the present invention attached to a wall in a building as an example, and shows a state where the cover plate is removed. An outlet body 2 having a pair of plug insertion portions 1 for inserting a male power terminal of a plug is attached to a mounting frame 7 attached to an outlet mounting hole 6 of a building wall via an intermediate frame 8. Yes. The force bar plate 3 is viewed from the back side, and the cover plate 3 having the opening 4 in the portion corresponding to the outlet body 2 is locked by the locking claw 9 in the locking hole 15 provided in the mounting frame 7. The The commercial power supply wiring (not shown) routed to the outlet mounting hole 6 through the inside of the building wall is the back of the outlet body 2 and the female power terminal (not shown) provided in the plug insertion part 1 )It is connected to the.

[0021] Around the opening 4 of the cover plate 3, an annular fitting groove 5 surrounding the opening 4 is formed. The fitting groove 5 is a groove in which the surface force of the cover plate 3 is also concaved toward the back surface, and in FIG.

FIG. 3 is a perspective view of the fitting groove as viewed from the surface of the cover plate 3. The fitting groove 5 is a groove in which the surface force of the force bar plate 3 is also recessed concavely toward the back surface. Plug engaging portions 16 are formed at a plurality of locations on the groove wall on the outer side of the fitting groove portion 5 (in FIG. 3, it is configured to be formed at two locations in the center of the short side of the rectangular fitting groove portion 5. Only the location is shown). The plug locking portion 16 is locked with a plug locking claw of an adapter or a power plug according to the present invention described later.

The cover plate described with reference to FIGS. 2 and 3 is characterized in that a fitting groove 5 is provided, and other configurations are the same as those of the conventional cover plate. Therefore, it is needless to say that there is no problem even if a conventional power plug is inserted into the V or outlet using this cover plate as long as the power is simply supplied. Thus, the tracking prevention effect can be achieved by connecting the conventional plug to the outlet. FIG. 4 is a perspective view of the adapter according to the present invention. The adapter 40 is substantially box-shaped, and a plug terminal portion 41 for connecting to an outlet is provided on the upper surface of the adapter 40, and an outlet terminal portion 42 to which a conventional plug is connected is provided on the lower surface.

The plug terminal portion 41 is formed with a pair of male power terminals 43 to be inserted into the pair of plug insertion portions 1 of the outlet, and a frame-like fitting jetty portion 44 surrounding the same. The fitting jetty 44 is a projection that fits into the fitting groove 5 of the cover plate 3, and its planar shape is the same as that of the fitting groove 5, and the position is the same as that of the plug insertion part 1 and the fitting groove 5 of the cover plate 3. It is the same as the positional relationship.

Also, a plug locking claw 45 that is locked to the plug locking portion 16 formed in the fitting groove portion 5 of the cover plate 3 is provided adjacent to the outside of the fitting jetty portion 44.

FIG. 5 is a cross-sectional view showing a state in which the plug locking claw 45 is locked to the plug locking portion 16 of the cover plate 3. When the male power terminal 43 of the adapter 40 is inserted into the plug insertion part 1 of the outlet body 2, the fitting jetty 44 of the adapter 40 is fitted into the fitting groove 31 of the cover plate 3. At the same time, the plug locking claw 45 is inserted into the plug locking portion 16 and locked, and the adapter 40 cannot be removed from the outlet cover. The plug locking claw 45 is in the form of a plate formed integrally with the adapter 40, and due to its elasticity, it can be attached to and detached from the plug locking portion 16. The plug locking claw 45 has a recess 46 formed at the tip, and the projection 17 of the plug locking portion 16 fits in this recess. To remove the plug from the outlet cover, push the plug latching claw 45 in the direction of arrow 47 to release the claw 46 from the protrusion 17. Thus, the adapter 40 will not come out of the outlet body 2 unless the plug locking claw 45 is intentionally attached to the plug locking claw 45.

As described above, the plug insertion portion 1 of the outlet body 2 is surrounded by the structure in which the fitting jetty portion 44 and the fitting groove portion 16 are fitted, and there is no room for dust to enter. This provides complete tracking prevention.

FIG. 6 is a perspective view of the outlet terminal portion 42 of the adapter 40 with an oblique downward force. A pair of plug insertion portions 48 for inserting the male power terminal of the plug is provided, and a dustproof wall 49 is provided around the plug insertion portion 48. In this way, the adapter 40 faces the plug insertion part 48 downward, and the plug insertion part 48 is surrounded by the dust-proof wall 49, so that the power plug is inserted! Even in this case, it is difficult for dust to enter from the plug insertion portion 48, and tracking can be prevented. In FIG. 6, the plug insertion portion 48 is a pair, but a plurality of pairs of plug insertion portions may be provided.

A female power supply terminal (not shown) provided at the back of the plug insertion portion 48 is electrically connected to the male power supply terminal 43 of the plug terminal portion 41.

[0025] FIG. 7 is a perspective view showing an outlet using a cover plate in which a communication line connection function is added to the cover plate shown in FIG. 2, and with the cover plate removed as in FIG. Back side force Shows the state as seen. A pair of plug insertion parts 1 and a receptacle main body 2 that is attached to the attachment frame 7 via the intermediate frame 8, and an opening 4 in a portion corresponding to the outlet main body 2, and a locking claw 9 provided on the back surface The structure of the fitting groove 5 provided so as to surround the opening 4 provided in the cover plate 3 locked in the locking hole 15 provided in the mounting frame 7 is the same as that in FIG.

The feature of the cover plate in FIG. 7 is that a communication terminal 32 for connecting a signal line such as an Internet signal, an FM broadcast wave, a television broadcast wave, a communication optical fiber, and a ground line is provided in the peripheral portion, Each communication line 33 wired to the plug mounting hole 6 on the inside of the wall is connected to this. In FIG. 7, the number of forces provided with six communication terminals 32 can be appropriately determined according to the number of lines that need to be connected. In this case, the communication line is a ferrule that connects the optical fiber. A groove terminal 34 for connecting the signal line 33 signal to the plug is provided at a predetermined position of the fitting groove 5. The communication terminal 32 and the groove terminal 34 are each covered with a predetermined wiring cord. Connected by wiring 35. The number of groove terminals 34 need not necessarily match the number of communication terminals 32, but the number and position of groove terminals 34 and communication terminals 32 should be the same and the same number should not be used. It is preferable.

FIG. 8 is a perspective view of the fitting groove portion in which the surface force of the cover plate 3 is also seen. The fitting groove 5 is a groove recessed in a concave shape from the front surface to the back surface of the force bar plate 3, and the plug locking portions 16 are formed at a plurality of locations on the groove wall outside the fitting groove 5. This is the same as Figure 3. The feature of the fitting groove 5 in FIG. 8 is that one or more groove terminals 34 are formed on the groove wall. is there. The groove terminal 34 is formed of a thin metal plate, for example, and the bottom of the fitting groove 5 where the groove terminal 34 is formed is open and electrically connected to the cover wiring 35. In this example as well, commercial power can be supplied by inserting a conventional power plug into this outlet.

FIG. 9 is a perspective view of a power plug according to the present invention. The plug 50 is composed of a pair of male power terminals 51, a frame-shaped fitting jetty 52 surrounding the plug 50, and a plug locking claw 53 provided adjacent to the outside of the plug-shaped portion 41 of the adapter shown in FIG. The structure is the same. The plug 50 has a jetty terminal 54 formed on the surface of the fitting jetty 52. The jetty terminal 54 is a terminal that is electrically connected to the groove terminal 34 when the fitting jetty 52 is fitted into the fitting groove 5 shown in FIG. Accordingly, the formation position of the jetty terminal 54 is a position corresponding to the groove terminal 34.

The plug-side signal cable 55 is connected from the jetty terminal 54 only to the electrode that needs to be connected to the device to which the plug is connected, and is connected to the device together with the power cable 56.

The number and position of the jetty terminal 54 may be formed as one or more necessary to connect to the communication line required for the equipment to which the plug is connected. It is preferable to use only the necessary terminals formed according to the standard.

[0028] When the male power terminal of the plug 50 is inserted into the plug insertion part 1 of the outlet shown in FIG. 7, the fitting jetty part 52 of the plug 50 is fitted into the fitting groove part 5 of the outlet, The pawl 53 is locked to the plug locking portion 16 to obtain a tracking prevention effect. At the same time, each jetty terminal 54 is connected to the groove terminal 34, and the plug-side signal cable 55 is connected to the signal line 33 via the jetty terminal 54, the groove terminal 34, the cover wiring 35, and the communication terminal 32. .

[0029] The configuration and operation of the present invention have been described so far, and specific examples will be described below.

FIG. 10 shows a cover according to the present invention, which has the same function as the cover described in FIG. Figure 10 (a) is a front view, (b) is a side view, (c) is a rear view, and (d) is a cross-sectional view taken along line AA in (c).

The cover plate 3 is a substantially flat surface as shown in Figs. 10 (b) and (d). There is a very shallow frame-shaped wall that surrounds, and this wall is connected to a flat surface with a smooth curve.

A fitting groove 5 is formed around the opening 4 that exposes the outlet body. The fitting groove 5 is a groove recessed in a concave shape from the surface of the cover plate 3, and the width W of the groove is 1 to 4 mm, preferably 1.5 to 2 mm, and 1.5 mm in this embodiment. The depth H of the groove is 0.5 to 3 mm, which is 1.5 mm in this embodiment. The distance D between the opening 4 and the fitting groove 5 is a force determined as appropriate depending on the size of the outlet body and the size of the plug. In this embodiment, it is lmm. A plug locking portion 16 is provided at the center of the short side of the rectangular fitting groove portion 5. Further, six locking claws 9 are provided on the periphery of the back surface of the force bar plate 3.

In this embodiment, two openings 4 are provided so that two plugs can be inserted. The number of openings may be one, or three or more may be appropriately changed according to the number of outlet bodies. The material of the cover plate 3 is not particularly limited, but a plastic material is used as an example.

FIG. 11 shows another embodiment of the cover plate according to the present invention. FIG. 11 (a) is a front view, FIG. 11 (b) is a rear view, a side view, and a sectional view are a side view of FIG. Since it is the same as the sectional view, it is omitted.

In FIG. 11, the configuration of the opening 4, the fitting groove 5 provided with the plug locking portion 16, and the locking claw 9 are the same as those in FIG.

The feature of this embodiment is that a communication terminal 32 is provided around the back of the cover. In this embodiment, one of the six communication terminals 32 (32-1) is an optical fiber connector (ferrule).

On the other hand, on the long side of the fitting groove portion 5, three groove portion terminals 34 are formed respectively.

The groove terminal 34-1 corresponding to the communication terminal 32-1 is the optical fiber connector. The communication terminal 32 and the groove terminal 34 are connected by a cover wiring 35 using a cable suitable for each signal.

FIG. 12 is an adapter according to the present invention, where (a) is a front view, (b) is a side view, and (c) is a bottom view.

In this embodiment, the adapter 40 includes a plug terminal portion 41 provided at the upper front portion thereof, It has an outlet terminal 42 on the bottom.

The plug terminal portion 41 is formed with a pair of male power supply terminals 43 and a frame-shaped fitting jetty portion 44 surrounding the same. The fitting jetty 44 is a protrusion that fits into the fitting groove 5 of the cover plate 3, and its planar shape and position are the same as the shape and positional relationship of the plug insertion part 1 and fitting groove 5 of the cover plate 3. It is.

The width w and height h of the mating jetty 44 are determined according to the width and depth of the mating groove 5.In this example, both the width and height are set to lmm. It fits in the shown fitting groove.

A plug locking claw 45 is provided adjacent to the outside of the fitting jetty 44.

On the other hand, the outlet terminal portion 42 is provided with two pairs of plug insertion portions 48 so that insertion terminals of two sets of power plugs can be inserted, and a dustproof wall 49 is provided around the plug insertion portion 48. The height of the dustproof wall is 2 to 15 mm, preferably 5 to 10 mm, and 8 mm in this embodiment.

FIG. 13 shows a plug according to the present invention, where (a) is a front view and (b) is a side view.

The plug 50 has a pair of male power terminals 51, a frame-shaped fitting jetty 52 surrounding the plug, and a plug locking claw 53 provided adjacent to the outside thereof. This is the same as the plug terminal 41 of the adapter shown. The plug 50 further has one or more jetty terminals 54 formed on the surface of the fitting jetty 52. The jetty terminal corresponding to the groove terminal 34-1 of the optical fiber connector shown in Fig. 11 (b) is the optical fiber one terminal 54-1.

[0035] Although the present invention has been described with reference to the embodiments, it is obvious that the embodiments can be variously modified within the scope of the technical idea of the present invention.

Industrial applicability

[0036] Although the present invention has been described with respect to dust-proof indoor power outlets, it can also be applied to waterproof outdoor outlets, for example.

Claims

The scope of the claims

[1] A power outlet cover plate provided with an opening so that a power outlet main body having a pair of plug insertion portions is exposed,

A power outlet cover plate having a structure in which a plurality of plug locking portions capable of locking a plug locking claw are formed in a groove wall outside the fitting groove portion.

[2] A communication terminal for connecting the indoor wiring of the communication line is provided on the back surface of the power outlet cover,

A groove terminal is provided on the inner groove wall of the fitting groove,

The power outlet cover plate according to claim 1, wherein the communication terminal and the groove terminal are connected by a cover wiring.

[3] An adapter for connecting a power plug to a power outlet using the power outlet cover plate according to claim 1,

A pair of male power terminals;

A dust-proof wall surrounding the power outlet is provided in a frame shape. When the pair of male power terminals are inserted into a plug insertion portion of a power outlet using the power outlet cover plate, the fitting is performed. A jetty portion is fitted into the fitting groove portion, and the plug locking claw is locked to the plug locking portion.

[4] Connect to a power outlet using the cover plate for a power outlet according to claim 2. A power plug

A pair of male power terminals are provided, and the male power terminals are connected to a power cord of a predetermined device to which power is to be supplied,

A surface of the fitting jetty is provided with a jetty terminal at a position corresponding to the groove terminal of the fitting groove, and a cable of a predetermined device to transmit / receive a communication signal is connected to the first jetty terminal. And

When the pair of male power terminals are inserted into a plug insertion portion of a power outlet using the power outlet cover plate, the fitting jetty portion is fitted into the fitting groove portion, and the plug locking claw is Locked to the plug locking part, the jetty terminal is connected to the groove terminal, and the indoor wiring of the communication line is simultaneously connected to the power supply via the communication terminal, cover wiring, groove terminal, jetty terminal, and cable. A power plug characterized by being connected to a specified device.