JP2001319743A - Receptacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receptacle wherein manufacturing and assembling work is simplified, and besides, a dimensional check process is able to be omitted. SOLUTION: Plural pair of blade receiving holes (13) are formed at the upper half part (11) of a case (10), and a substrate (20) is built in between the upper half part of the case and a lower half part (12) of the case and supported by the case, and a conductor pattern (30) is mounted on the substrate, and a plug-in hole (36, 37) of connection terminal (41) of blade rest fittings (40) is drilled and installed at a position corresponding to the blade rest hole of substrate and conductor pattern, and the connection terminal of blade rest fittings is inserted into the plug-in hole, and fixed to the conductor pattern by soldering.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet, and more particularly to an outlet which can simplify manufacturing and assembling operations and can omit a dimension inspection step.

[0002]

2. Description of the Related Art Conventionally, a plurality of pairs of blade receiving holes are provided in a single case, and a plug blade of an electric cord is inserted into each pair of blade receiving holes and connected to a blade receiving bracket to provide a plurality of electric products. An outlet capable of supplying power has been known (Japanese Patent Application Laid-Open No. 62-198069, Japanese Patent Application Laid-Open No. 08-45617).
Gazette, Japanese Patent Application Laid-Open No. 08-315871,
169080, JP-A-59-33684, JP-A-02-16582, etc.).

[0003]

However, in this type of conventional outlet, the blade receiving bracket and the current-carrying metal fitting for connecting the blade receiving bracket are formed into a predetermined shape by press machining of a metal plate. In addition, the assembly work is complicated and simple assembling errors are easy to occur. In addition, in order to ensure the smooth connection of the plug blade, it is necessary to check whether the dimensions after assembly are within the tolerance. However, there was a problem that productivity was very poor.

[0004] In view of the above problems, an object of the present invention is to provide an outlet which can simplify the manufacturing and assembling operations, and can omit the dimension inspection step.

[0005]

Therefore, an outlet according to the present invention is provided with a plurality of pairs of blade receiving holes in one case,
In an outlet capable of connecting plug plug blades of a plurality of electric cords, the case is configured by overlapping an upper half portion and a lower half portion, and a plurality of pairs of blade receiving holes are formed in the upper half portion of the case. On the other hand, between the upper half and the lower half of the case, a substrate is built in and supported by the case, and a conductive pattern is mounted on the substrate,
At the location corresponding to the blade receiving hole of the substrate and the conductor pattern, an insertion hole of a connection terminal of the blade receiving metal is formed. It is characterized by being fixed to a conductor pattern.

A feature of the present invention is that a conductor pattern is mounted on a substrate, a connection terminal of a blade receiving fitting is inserted and fixed in an insertion hole of the substrate and the conductor pattern, and the conductor pattern and the blade receiving fitting are electrically connected. That's the point. This eliminates the need for connecting fittings to connect between the blade receiving fittings,
There is no need to perform press machining of a complicated shape, and the manufacturing process can be simplified. In addition, since the connection terminals of the blade receiving member need only be inserted into the insertion holes formed in the substrate and the conductor pattern and soldered, the assembling work can be greatly simplified. Further, since the insertion hole is formed in the substrate and the conductor pattern, if the substrate is accurately supported on the case, the dimensional inspection after assembly can be omitted.

[0007] A printed wiring formed on a substrate can be used as the conductor pattern. As a material for the printed wiring, for example, a copper-based, aluminum-based, or other conductive material can be adopted. However, in the case of an outlet, since a large current flows through the conductor pattern, the printed wiring has a thickness of 60 μm or more, preferably 70 μm or more, and a width of 6 mm or more, preferably 6.5 mm or more in the case of a copper-based material. It is desirable to form.

In the case where the conductor pattern is formed by printed wiring, there is a possibility that short-circuits may occur in places where the distance between the conductor patterns is small due to dew condensation or the like. In such a case, it is preferable to provide an insulating wall between the conductor patterns. The insulating wall may be formed so as to be integral with the substrate, or the insulating wall may be fixed with an adhesive or the like.

Further, a punched metal thin plate may be adopted as the conductor pattern, and the conductor pattern may be joined to the substrate. The material of the metal thin plate is not particularly limited as long as it is a conductor material, and copper-based,
For example, a brass thin plate can be adopted.

[0010] The conductive pattern made of a thin metal plate is mounted on a substrate and joined. When a short circuit due to dew condensation or the like is feared as described above, a recess is formed in the substrate and fitted therein. It is better to do so. That is, it is preferable to form a recess having a shape corresponding to the conductor pattern on the substrate, and fit the conductor pattern made of a thin metal plate into the recess and join it. Moreover,
When the conductor pattern made of a thin metal plate is fitted in the recess of the substrate in this manner, even when the interval between the conductor patterns is narrow, a short circuit due to dew condensation or the like due to the insulating properties of the substrate can be reliably prevented.

The material of the substrate is not particularly limited, as long as it is made of at least an insulating material. However, when considering the accident caused by the above-mentioned dew condensation or the like, the substrate is preferably made of a self-extinguishing material. The self-extinguishing material refers to a material that does not spread even at a high temperature, and specifically includes a melamine phenol resin, a glass epoxy resin, and other resin materials having properties similar to these.

When a plurality of plugs are connected to one outlet, the power cord of the outlet is often always connected to a commercial power source, so it is convenient if the power supply to each plug can be cut off. Therefore, it is preferable that the case is provided with a switch for individually cutting off the power supply to each pair of blade receiving brackets.

In this case, the conductor pattern is a first pattern in which one line of the power cord is connected, and a plurality of insertion holes for inserting and fixing the connection terminals of one of the plurality of pairs of blade receiving brackets are formed. A second pattern to which the other line of the power cord is connected, and a plurality of third holes formed with insertion holes for inserting and fixing the connection terminals of the other blade receiving members of each pair.
It is preferable to provide a switch so as to electrically connect and cut off between the second pattern and each third pattern.

Further, the blade receiving member may be constituted by one blade receiving terminal. However, in order to secure a reliable connection, the blade receiving member is constituted by two blade receiving terminals, and a plug plug blade is sandwiched between them. Is good. That is, it is preferable that the blade receiving member is formed of a connection terminal and two plate-like terminals facing each other, and is integrally formed with a main body into which a plug plug blade of an electric cord is inserted.
In this case, in order to ensure more reliable connection with the plug blade, it is preferable to provide the main body with a spring property.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to specific examples shown in the drawings. 1 and 2 show a preferred embodiment of an outlet according to the present invention. In the figure,
The case 10 is manufactured using a synthetic resin material, and the upper half 1
1 and the lower half 12 are overlapped and fastened with fastening screws 15..., And four pairs of blade receiving holes 13 are formed in the upper half 11 of the case. Switches 14 are provided corresponding to the blade receiving holes 13.

The case upper half 11 and the case lower half 12
The board 20 is built in between. A screw insertion hole is formed in the substrate 20, while a substrate receiving portion protrudes from the bottom surface of the lower case half 12, the substrate 20 is mounted on the substrate receiving portion, and the case fastening screws 15 are provided. And is supported by the case 10.

The substrate 20 is manufactured using a glass epoxy resin which is a self-extinguishing material, and a printed wiring (conductor pattern) 30 is formed on the back surface of the substrate 20. The printed wiring 30 is made of a copper-based material,
With the above thickness, it is manufactured with a minimum width of 6.25 m. The printed wiring 30 includes first, second and third patterns 31,
32, 33, and the first pattern 31
0 extends in the longitudinal direction of the substrate 20 on one side, and a part 34 of the pattern 31 from three places on the way and the terminal side.
Extend toward the other side.

The second pattern 32 extends in the longitudinal direction of the substrate 20 on the other side of the substrate 20, and has a starting end side and a middle 3.
A portion 35 of the pattern 32 extends from the location toward one side. The first and second patterns 31, 32
A third pattern 3 between the four extension portions 34 and 35 of
3 are arranged.

The first and third patterns 31 and 33 have insertion holes 36 at positions corresponding to the blade receiving holes 13.
37 are drilled, and the blade holder 4 is inserted into the insertion holes 36 and 37.
Are connected and fixed by soldering. As shown in FIG. 2, the blade receiving member 40 is formed by integrally molding a connection terminal 41 and a main body 42 composed of two plate-like terminals facing each other.

The first and second patterns 31, 32
The extension portions 34, 35 and the third pattern 33 are provided with insertion holes 38, 39, 310, respectively.
The three connection terminals of the switch 14 are inserted into 9, 310, and are fixed by soldering. This switch 14
Cuts the first and second patterns by operating the knob and connects the second and third patterns to connect the blade receiving member 4
0 is permitted, the first and second patterns are connected by the reverse operation of the knob, and the second and third patterns are cut to cut off the current between the blade receiving members 40. It has become.

Further, pattern cutting portions 311 and 311 are formed at the start end side of the second pattern 32, and insertion holes 312 and 312 are formed in the pattern cutting portions 311 and 311, and insertion holes 312 and 312 are formed in the insertion holes 312 and 312. The connection terminals 51 of the vibration sensor switch 50 are inserted and fixed by soldering.

Normally, the vibration sensor switch 50 connects between the pattern cutting portions 311 and 311 so that the pattern cutting portion 31 is actuated when a vibration larger than a set magnitude is applied.
By cutting between 1 and 311, for example, the occurrence of a fire during an earthquake can be prevented, and the operation can be returned to the initial state by operating the reset button 52. Since a known switch can be adopted as the vibration sensor switch 50, its detailed description is omitted.

Further, the first and second patterns 31, 32
Is connected to the wiring of the power supply cord 60.

As described above, in the present embodiment, the substrate 20
Since the printed wiring 30 is formed thereon to connect the blade receiving fittings 40, a connecting fitting for connecting between the conventional blade receiving fittings becomes unnecessary, and it is not necessary to perform press machining of a complicated shape. The manufacturing process can be simplified.

The connection terminals 41 of the blade holder 40 are inserted into the insertion holes 36, 37 formed in the substrate 20 and the printed wiring 30.
Since it is sufficient to insert and solder the device, the assembling work is very simple.

Further, since the insertion holes 36 and 37 are formed in the substrate 20 and the printed wiring 30, the substrate 20 is
If it is accurately supported at zero, dimensional inspection after assembly is not required.

As a result, an outlet having a simple structure, a simplified manufacturing and assembling process, and a high reliability can be obtained.

FIGS. 3 and 4 show a second embodiment. 1 and 2 indicate the same or corresponding parts. In this embodiment, a melamine phenol resin is used as the material of the substrate 20, a recess 21 corresponding to the conductor pattern is formed in the substrate 20, and the recess of the substrate 20 is formed by using a conductor pattern 30 punched out of a metal flat plate instead of the printed wiring. The difference is that the electric leakage switch 70 is used instead of the vibration sensor switch.

In the above embodiment, the case where the number of the insertion holes of the plug blade is two has been described, but the present invention can be similarly applied to the case where the number of the insertion holes is three.

[Brief description of the drawings]

FIG. 1 is a schematic exploded perspective view showing a preferred embodiment of an outlet according to the present invention.

FIG. 2 is a diagram showing a back surface (a) and a front surface (b) of a substrate in the embodiment.

FIG. 3 is a schematic exploded perspective view showing a second embodiment.

FIG. 4 is a diagram showing a back surface (a) of the substrate and a partial cross section (b) thereof in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Case 11 Upper half part of case 12 Lower half part of case 13 Blade receiving hole 14 Switch 20 Board 21 Depression 30 Printed wiring (conductor pattern) 31 First pattern 32 Second pattern 33 Third pattern 36, 37 Insert hole 40 blade holder 41 connection terminal 42 body

Claims (8)

[Claims] 1. An outlet in which a plurality of pairs of blade receiving holes are provided in one case so that plug plug blades of a plurality of electric cords can be connected, wherein the case overlaps an upper half and a lower half. A plurality of pairs of blade receiving holes are formed in the upper half of the case, while a substrate is incorporated between the upper half and the lower half of the case and is supported by the case. A conductor pattern is mounted on the board, and an insertion hole for a connection terminal of a blade receiving bracket is formed at a position corresponding to the blade receiving hole of the substrate and the conductor pattern. An outlet, wherein a connection terminal is inserted and fixed to the conductor pattern by soldering. 2. The outlet according to claim 1, wherein the conductor pattern is a printed wiring formed on the substrate. 3. The outlet according to claim 1, wherein said conductor pattern is formed by punching a thin metal plate and joined to said substrate. 4. The outlet according to claim 4, wherein a recess having a shape corresponding to the conductor pattern is formed in the substrate, and the conductor pattern made of a thin metal plate is fitted into and joined to the recess. 5. The outlet according to claim 1, wherein said substrate is made of a self-extinguishing material. 6. A switch mounted on the case to individually cut off the power supply to each pair of blade receiving brackets.
Outlet described. 7. A first pattern in which one line of a power cord is connected, and a plurality of insertion holes for inserting and fixing connection terminals of one of the pair of blade receiving brackets are formed in the conductor pattern. The second to which the other line of the power cord is connected
And a plurality of third patterns formed with insertion holes for inserting and fixing the connection terminals of the other blade receiving fittings of each pair, and the switch includes the second pattern and each of the third patterns. 7. The outlet according to claim 6, wherein the outlet is electrically connected to the pattern. 8. The blade receiving fitting comprises a connection terminal and two plate-like terminals facing each other, and a body into which a plug plug blade of an electric cord is inserted is integrally formed.
Outlet described.