JPH0535591Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a connector for attaching a noise prevention diode that is suitable for attachment to a two-wire conductive line.

<Prior art> In recent years, the spread of electrical and electronic devices has become more and more remarkable, and in some cases, the use of word processors, personal computers, etc. can also generate noise currents or weak noise radio waves. However, it has been reported that it may interfere with the normal operation of televisions, radios, etc. in use in the vicinity.

Therefore, although a protection circuit as shown in FIG. 4 has been proposed in some areas, the reality is that there is still no practical and simple device for installing this into wiring.

<Problems to be solved by the invention> Therefore, the invention is easy to install during wiring, and
The present invention aims to provide a connector for mounting a noise prevention diode that has a simple structure and is easy to manufacture.

<Means for solving the problem> In order to achieve this objective, the present inventor has arrived at the present invention as a result of various studies, and the connector for installing the noise prevention diode is designed to connect two conductive wires in parallel. a housing body having a first groove and a second groove to be accommodated in the housing body; a lid covering the housing body; and a portion made of a rigid metal plate having a width that fits into the first groove; It has a slit corresponding to the diameter of the core wire of the conductive wire in the fitting direction,
a first contact and a second contact disposed at one end side and a central portion of the housing body, respectively; and a portion made of a rigid metal plate and having a width to fit into the second groove; a third contact having a slit corresponding to the diameter of the core wire of the conductive wire in the fitting direction and disposed on the other end side of the housing;
A rod-shaped first conductor having an intervening diode with the contact side as a positive pole and electrically connected to the first contact and the second contact, and a third contact side as a positive pole. a rod-shaped second conductor electrically connected to the third contact and the second contact, one of the diodes being connected in series with one of the conductive wires; connected to
The other diode is configured to be connected in parallel to the load between both conductive lines.

Each of the above contacts has an upper part approximately equal to the inner diameter of the housing body or the lid, a lower part having a width that fits into the first groove or the second groove, and the lower part has a conductive wire in the fitting direction. The shape has a slit corresponding to the diameter of the core wire.

If the contacts electrically and mechanically connected by the conductors mentioned above are attached and fixed to the lid in advance, closing the lid also serves as the electrical connection operation, which is convenient for use. It may be separate from the.

The portion where the slit contacts the electric wire preferably has a sharp edge from the viewpoint of omitting the operation of removing the coating from the conductive wire as described later, but this is not essential.

A suitable material for the above-mentioned contactor is a metal that has both conductivity and hardness, such as tin-plated brass, but other metals such as brass, duralumin, etc. good. The above rod-shaped conductor is also preferably made of the same material.

The housing body and the lid may be made of insulating synthetic resin, and it does not matter whether they are thermoplastic or thermosetting. Further, although it is easier to use the lid if it is pivotally attached to the main body, it is not necessary to do so.

Furthermore, between the first contact and the second contact, it is necessary to cut off the conductive wire connected to them to create a disconnected state, so that the two bare cut terminals should not be short-circuited. Although it would be convenient if a barricade body was provided at the portion, it is not an essential member in the present invention.

<Function> In the connector of the present invention having the above configuration, the one of the two conductive wires to be fitted into the first groove is cut at an appropriate point, and its ends are connected to the first contact and the second conductive wire.
Place it between the contacts. If the slit of each contact has a sharp edge, the slit is fitted into the uncoated conductive wire by cutting the sheath, and if the edge is not sharp, the slit is fitted into the conductive wire with the sheath removed in advance. to reveal an electrical connection.

As a result, the electric circuit shown in FIG. 4 is constructed, and the desired noise prevention effect by each of the diodes described above can be achieved. Because each contact has the above dimensions and shape, and because the rod-shaped conductor that connects them is rigid, the main internal parts of the connector of the present invention can be housed in the housing without wobbling. There is no risk that the circuit will be destroyed by vibrations and shocks applied from the outside.

In addition, in the present invention, one diode is not only connected in parallel with respect to the load between both conductive wires, but also the other diode is connected to one conductive wire in series with the load, so that the load, that is, electronic equipment, etc. The effect of preventing the generation of noise currents or noise radio waves is more reliable than in the case of using only parallel diodes.

<Example> The present invention will be explained in more detail below with reference to the example shown in the drawings.

In the first embodiment shown in FIGS. 1 and 2, the first groove 1 of the housing body 10 is formed of a suitable synthetic resin to accommodate two conductive wires P and N in parallel.
2 and the second groove 14, an interrupted partition wall 16 is provided, and the lid 11 pivotally attached to the main body has a hole 13a that engages with the locking tool 10a on the front side of the main body 10. A bracket 13 is provided. The side wall 15 of the lid 11 that covers the outer surface of the main body side wall is dimensioned to cover the upper half of the outer surface of the main body side wall while leaving the conductive wire through holes 12a and 14a.

It is made of a tin-plated brass plate, the upper part has a width approximately equal to the inner diameter of the housing body 10, the lower part has a width to fit into the first groove 12, and the lower part has a conductive wire P, A first contact 20A having a shape having a slit 22 corresponding to the diameter of the N core wire W.
and the second contactor 20B are arranged at intervals such that the former is located at one end of the housing, and the latter is located in the middle, as shown in the figure. Both contacts 20A, 20
A diode D1 is connected to the first contact 20A of the brass rod, which is electrically conductively connected to B.

Similarly, the upper and lower dimensions of the third contact 20C disposed on the other end side of the housing main body 10 are the same as those of the first and second contacts 20A and 20B, but in an upside-down position, that is, It is connected to the second contactor 20B by a second conductor 26 such that its lower portion is fitted into the second groove 14. Here, the diode D2 is connected to the middle portion of the second conductor 26 with its positive pole facing the third contact.

The lower end of the upper part of each contactor 20A, 20B, 20C is supported by the top of the partition wall 16, and the lower end of the lower part hanging down from one end side of the upper part is supported by the first groove 12 or the second groove 14. Moreover, since the widths of each part are as described above, there is no fear of rattling inside the housing body 10.

The contacts 20A, 20B, and 20C, which are electrically conductively connected by both conductors 24 and 26, are in a so-called integrated state. One of the conductive wires P is cut at appropriate points, and the insulation coating is partially removed at the portions corresponding to the first and second contacts near the cut end, and the wires are placed on both sides of the barricade body 18. At the same time, the insulation coating is also removed from the part corresponding to the third contact and inserted into the first groove 12, and the insulation coating is similarly removed from the other conductive wire N at three places and the second contact is inserted into the first groove 12.
When inserted into the groove 14, a short circuit between the cut ends of the conductive wire P is prevented by the barricade body 18, and in this state, the above-mentioned contactor-conductor assembly, which is so to speak integrated, is installed inside the housing body 10. will be done. As a result, the electric circuit shown in FIG. 4 is automatically formed, and when the lid 11 is closed, the installation of the connector is completed.

In the electric circuit shown in FIG. 4, the partial circuit D is a noise prevention circuit constituted by the connector of the present invention, and its right power supply side S is on the upper right side in FIG. Therefore, the load L on the left side of the partial circuit D corresponds to the lower left side in FIG.

The second embodiment shown in FIG. 3 is different from the first embodiment described above in that the assembly having the above structure is installed in the lid 11 in advance, and the conductors 24, 26 are
The plurality of holes 28 drilled in each contact to connect them to the contacts 20A, 20B, and 20C are arranged horizontally rather than vertically, and the edge of each slit 22 is sharply formed and There is no need to peel off the insulation coating of the conductive wire, and the barricade body 18
Since the wire does not have a wire between the first and second contacts, it is not only necessary to simply cut the wire between the first and second contacts, but also to cut off the corresponding portion by an appropriate length T (FIG. 3).
In the second embodiment, since the partition wall 16 is at the same height as the housing main body 10, vertical grooves 30 into which the lower portions of the contacts are inserted are cut in each part. Number 32 is a flexible band that pivotally connects the lid 11 to the housing 10.

In the connector with this configuration, when the lid 11 is closed in the direction of arrow Y, each contact 20A, 20
Connections at three locations between B, 20C and each conductive wire P, N are automatically made.

The connectors in the two examples above are small, with a length of about 4 cm, and a width and height of about 1 cm.

For the above embodiments, within the scope of the present invention,
Of course, modifications can be made using other electrical circuit elements such as resistors, rectifiers, capacitors, etc. in place of or in addition to the diodes described above.

<Effects of the Invention> According to the invention, a low-bulk connector that is easy to attach to conductive wires in a wiring path is provided, and the purpose of noise prevention in various electrical and electronic devices can be extremely easily achieved. In particular, since the diode as a functional element has already been assembled into an assembly consisting of a plate-like contact with a slit and a rod-like conductor, the slit can be inserted into the core wire, which means that the assembly can be connected to the conductor wire. By simply setting the connector, a circuit is automatically configured at the same time as the electrical connection is made, providing an extremely practical and extremely rational connector. As mentioned above, since the diode is connected not only in parallel but also in series with the load by pressure welding to the wire, the noise prevention effect is more complete. Since the contact element is made of a metal plate, there is no risk of the diode being damaged during press-fitting. Moreover, since its structure is very simple, it is easy to manufacture, can be inexpensive, and easy to handle.Furthermore, since it is small, it does not take up a lot of space even when installed in the wiring, and it does not feel strange. There is also little risk of giving.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway exploded perspective view showing the connector of the first embodiment of the present invention being installed, Fig. 2 is a reduced perspective view of the connector before installation, and Fig. 3 is the installation of the connector of the second embodiment. An exploded perspective view showing the inside condition.
FIG. 4 is an electrical circuit diagram constructed by the connector of the present invention. In the figure, 10 is the housing body, 11 is the lid, 12
is the first groove, 14 is the second groove, 20A is the first contact,
20B is the second contact, 20C is the third contact, 22
is a slit, 24 is a first conductor, 26 is a second conductor, D1 and D2 are diodes, P and N are conductive wires,
L is the load, and W is the core wire.

Claims (1)

[Scope of utility model registration request] A first groove 1 that accommodates two conductive wires P and N in parallel.
2 and a housing body 10 with a second groove 14
, a lid 11 that covers the housing body, and a rigid metal plate having a width portion that fits into the first groove 12, and the core wire W of the conductive wires P and N extends in the fitting direction. The first contact 20A and the second contact 20B, which are arranged at one end side and the center part of the housing main body 10, respectively, are made of a rigid metal plate. It has a portion with a width that fits into the second groove 14, this portion has a slit 22 corresponding to the diameter of the core wire W of the conductive wire in the fitting direction, and is disposed on the other end side of the housing. The third contact 20C and the first contact 2
Diode D inserted with 0A side as positive pole
1, the first contact 20A and the second contact 20B
A rod-shaped first conductor 24 electrically connected to
and a diode D2 interposed with the third contact 20C side as a positive pole.
C and a rod-shaped second conductor 26 electrically connected to the second contact 20B, one diode D1 is connected in series to one conductive wire P, and the other diode D2 is A connector for installing a noise prevention diode configured to be connected in parallel to the load L between both conductive wires P and N.