JPH037890Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a locking terminal device for locking the core wire of an electric wire with a self-locking terminal.

[Technical background of the invention]

Conventional locking terminal devices are, for example,
As shown in Japanese Patent No. 149263, it has a structure in which a terminal plate and a self-locking terminal facing a part of the terminal plate are built into an insulating container.

[Problems with background technology]

However, in the above configuration, a terminal plate is indispensable, and this terminal plate is made of an expensive conductive material such as a copper alloy and requires complicated processing, making it an expensive component. Also, as the number of wires to be locked increases, the structure of the terminal board becomes increasingly complex.
There were problems in that the number of manufacturing steps increased and the number of parts increased as it became necessary to connect the terminal boards to each other.

[Purpose of invention]

Accordingly, it is an object of the present invention to provide an inexpensive locking terminal device that allows core wires of electric wires to be locked with self-locking terminals without using a terminal board.

[Summary of the idea]

That is, the locking terminal device according to the present invention includes an insulating container, an insulating lid that closes the opening of the container, and an elastic conductive device held in parallel between the container and the lid. and a plurality of self-locking terminals having the same structure made of material, each of the locking terminals having an intermediate portion at one end that is engaged with a holding portion provided on at least one of the container body and the lid body. A locking piece is bent and a contact piece is bent at the other end to form the self-locking terminals, and these self-locking terminals are arranged in parallel in the same direction, and the above-mentioned body or An electric wire introduction hole is provided in the lid body, and the core wire of the electric wire inserted into this introduction hole is inserted between the intermediate back surface of one of the adjacent self-locking terminals and the other self-locking terminal. It is characterized by being locked by being clamped between the lock piece and the contact piece.

According to the locking terminal device having this feature, a holding portion is provided on at least one of the container body and the lid, and the holding portion allows the self-locking terminals forming the lock piece and the contact piece to be oriented in the same direction. The core wire of the electric wire is clamped between the back of the middle part of these adjacent locking terminals, the locking piece, and the contact piece, thereby eliminating the need for the terminal board that was previously required. be able to. Therefore, the cost can be reduced, and the container body can be made smaller by omitting the storage space for the terminal board. Furthermore, if a large number of self-locking terminals of the same shape are used, it is possible to further reduce costs. Further, since a large number of the locking terminals can be arranged on the container body, it is possible to easily configure a device with a large number of locked electric wires.

[Example of idea]

A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes, for example, a box-shaped insulating container with an opening on one side, and a terminal lead-out groove 2 is provided at the edge of the opening of the container 1. An engaging groove 3 is provided on the inner surface of the corner formed by the one end wall 1a of the container body 1 provided with the terminal lead-out groove 2 and the both side walls 1b continuous thereto, extending from the opening edge to the inner bottom surface. . Further, on the inner surfaces of the both side walls 1b, a plurality of opposing groove-shaped holding portions 4 are provided at regular intervals from the opening edge to the inner bottom surface. Reference numeral 5 designates a self-locking terminal made of a cladding material, comprising a conductive layer 6 made of a copper-based metal and a spring layer 7 made of a springy metal such as steel or stainless steel. This locking terminal 5 has holding pieces 9 that engage with the holding part 4 of the container body 1 at both ends of the intermediate part 8, and has a locking piece 9 at one end of the intermediate part 8 that connects to the spring layer 7 side. It is formed by bending the lock piece 10 and bending a contact piece 11 at the other end toward the same spring layer 7 side as the lock piece 10. Also,
Reference numeral 12 denotes a conductive plate made of a copper-based metal plate, and this plate 12 is formed into an L shape by bending a terminal portion 14 at one end of a flat plate portion 13. Both side edges of the flat plate portion 13 are adapted to engage with the engagement grooves 3 of the container body 1. On the other hand, 15 is an insulating lid that closes the opening of the container 1, and the lid 15 has an introduction hole 17 for introducing the core wire of the electric wire 16 into the container 1, and an adjacent self-locking terminal 5. The same number of these self-locking terminals 5 are provided facing each other in between. Note that the lid 15 is attached to the vessel 1 by means not shown. The conductive plate 12 is engaged with the engagement groove 3 of the container body 1 with its terminal portion 14 directed outward from the terminal lead-out groove 2 to the outside of the container body 1. Further, each of the self-locking terminals 5 is housed and held within the container body 1 by engaging its respective holding piece 9 with the holding portion 4, and the respective locking piece 10 is positioned on the opening side of the container body 1. In addition, the locking piece 10 and the contact piece 11 are arranged side by side with the locking piece 10 and the contact piece 11 facing toward the conductive plate 12. The lid 15 is attached to the container body 1 so as to close the opening thereof. Note that the conductive plate 12
The core wire of the electric wire 16 is soldered to the terminal portion 14 with solder 18.

To lock the wire in this configuration, wire 1
6 core wires may be inserted into the introduction holes 17 of the lid body 15, respectively. In this case, the core wire of the electric wire 16 inserted into the container body 1 along the plate portion 13 of the conductive plate 12 first comes into contact with the locking piece 10 of the locking terminal 5 at its tip and elastically deforms it. Then, the contact piece 11 of the locking terminal 5 is passed through while being elastically deformed, and the chain is clamped between the plate portion 13 of the conductive plate 12 and the locking piece 10 and the contact piece 11 of the locking terminal 5. be locked. Therefore, the core wire of the inserted electric wire 16 and the electric wire 16 soldered to the conductive plate 12
The core wire can be made conductive. Also, the core wire of another electric wire 16 inserted into another introduction hole 17 is first guided to the back surface of the intermediate portion 8 of the locking terminal 5, and is inserted further into the rear surface of the intermediate portion 8. While sequentially elastically deforming the locking pieces 10 and contact pieces 11 of the self-locking terminals 5 facing the self-locking terminals 5, the locking pieces 10 and 11 of the self-locking terminals 5 are passed through the middle portions 8 and 11 of the adjacent self-locking terminals 5. It is sandwiched between the contact piece 11 and locked. By locking as described above, each of the electric wires 16 described above can be brought into a conductive state with the same polarity. Therefore, it is possible to eliminate the need for the terminal board that was conventionally required, and thereby, the storage space for the terminal board in the container body 1 is not required, so that the container body 1 and the lid 15 can be made smaller. Furthermore, a self-locking terminal 5 of the same shape
Since a large number of can be used, costs can be reduced.

Note that the self-locking terminal 5 has a conductive layer 6 made of copper-based metal.
and a spring layer 7 made of spring metal such as steel or stainless steel.
Since it is made of clad material consisting of
Both the contact piece and the contact piece 11 have sufficient elastic force, and the core wire of the electric wire 16 once locked by the locking terminal 5 does not easily come off, and sufficient contact pressure can be obtained. Further, the intermediate portion 8 of the locking terminal 5
Since one layer is composed of the spring layer 7, it is rigid, and when the core wire of the electric wire 16 is introduced, the tip of the core wire will not be deformed.
The core wire of the electric wire 16 has good insertability and good contact stability.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

In the figure, reference numeral 21 denotes, for example, a box-shaped insulating container with an opening on one side, and a terminal lead-out groove 22 is provided at the edge of the opening of the container 21. A plurality of engaging protrusions 23 are provided on the inner bottom surface of the container body 21, spaced apart from the inner surface of the one end wall 21a of the container body 21 in which the terminal lead-out groove 22 is provided. Further, on the inner bottom surface of the container body 21, a set of at least four convex holding portions 24 are provided.
A plurality of sets are provided at regular intervals. Note that this holding portion 24 may be replaced with a set of two rib-shaped holding portions. A self-locking terminal 25 is made of a cladding material and includes a conductive layer 26 made of a copper-based metal and a spring layer 27 made of a springy metal such as steel or stainless steel. This locking terminal 25 is provided by engaging the side edge of its intermediate portion 28 with the holding portion 24 of the container body 21. Then, at one end of the intermediate portion 28, bend the locking piece 29 toward the spring layer 27 side, and
At the other end, a contact piece 30 is bent toward the same spring layer 27 side as the locking piece 29. Further, 31 is a conductive plate made of a copper-based metal plate, and this plate 31 is formed into an L shape by bending a terminal portion 33 at one end of a flat plate portion 32.
One side edge of the flat plate portion 32 is adapted to engage with the inner surface of the one end wall 21a of the container body 21 and the engaging protrusion 23. And on the bottom wall of the vessel body 21,
Introductory holes 35 for introducing the core wires of the electric wires 34 into the container body 21 are provided in the same number as the self-locking terminals 25, facing each other between adjacent self-locking terminals 25. On the other hand, 36 is an insulating lid that closes the opening of the container 21, and the inner surface of the lid 36 has a
A plurality of sets of engaging protrusions 23a and at least four convex holding parts 24a facing the engaging protrusions 23 and holding parts 24 provided in the holding part 1 are provided. Note that this holding portion 24a may also be formed into a rib shape as described above, and the lid body 36 is adapted to be attached to the vessel body 21 by means not shown. The conductive plate 31 has its terminal portion 3
3 is directed from the terminal lead-out groove 22 to the outside of the container body 21, and the engaging protrusion 23 engages with the inner wall surface of the container body 21.
and is engaged with the engagement protrusion 23a of the lid 36. Further, each self-locking terminal 25 has both ends of its intermediate portion 28 attached to the holding portion 2 of the container body 21.
4 and the holding portion 24a of the lid body 36 to be housed and held within the container body 21, and the locking pieces 29 are respectively located on the bottom side of the container body 21, and the locking pieces 29 and the contact piece 30 are arranged in parallel with each other facing toward the conductive plate 31. Note that the core wire of the electric wire 34 is soldered to the terminal portion 33 of the conductive plate 31.

In this configuration, the locking of the electric wire and the operation and effect when the electric wire is locked are explained in the first place.
Since this is the same as the embodiment, the explanation thereof will be omitted.

Next, a third embodiment of the present invention will be described with reference to FIG. 5, in which the same components as in the first embodiment are indicated by the same reference numerals, and only the parts that are different from the first embodiment will be described.

This embodiment has the same structure as the first embodiment except that at least four or more self-locking terminals 5 are provided, and a corresponding number of holding portions 4 and introduction holes 17 are provided. According to this configuration, it is possible to achieve the intended purpose of the present invention, and for example, the electric wire 16 connected to the conductive plate 12 and the electric wire connected between the conductive plate 2 and the self-locking terminal 5 adjacent thereto. 16 can be made the same polarity, and the electric wires 16 that are clamped and locked between other self-locking terminals 5 that are one or more distances apart can be made to have different polarities with respect to the above-mentioned one pole, This is suitable as a multi-pole locking terminal device.

In addition, when adopting a multi-pole configuration in the present invention, the number of poles may be further increased instead of two poles as in the third embodiment, or the number of electric wires connected to the same pole may be increased. . Further, in the present invention, the conductive plate may be omitted. Furthermore, in the first embodiment and the third embodiment, the introduction hole can be provided in the bottom wall of the container body, and the self-locking terminal can be stored upside down.

[Effect of idea]

According to the present invention, the self-locking terminals are arranged and held in the same direction between the container body and the lid body, and the core wire of the electric wire is connected between the back of the intermediate part of the adjacent locking terminals and the locking piece and the contact piece. Since the structure is such that the terminal is clamped and locked, the conventional terminal board can be made unnecessary, the container body etc. can be made smaller, and an inexpensive locking terminal device can therefore be provided.

[Brief explanation of drawings]

1 and 2 show a first embodiment of the present invention, with FIG. 1 being a sectional view and FIG. 2 being an exploded perspective view with the lid removed. 3 and 4 show a second embodiment of the present invention, with FIG. 3 being a sectional view and FIG. 4 being an exploded perspective view with the lid removed. FIG. 5 is a sectional view showing a third embodiment of the present invention. 1, 21... Vessel body, 4, 24... Holding part, 5,
25... Self-locking terminal, 8, 28... Middle part, 1
0,29...Lock piece, 11,30...Contact piece, 1
5, 36... Lid body, 16, 34... Electric wire, 17,
35...Introduction hole.

Claims (1)

[Scope of claim for utility model registration] (1) An insulating container, an insulating lid that closes the opening of the container, and an elastic conductive material held in parallel between the container and the lid. and a plurality of self-locking terminals having the same structure, each of the locking terminals having one end of an intermediate portion that is engaged with a holding portion provided on at least one of the container body and the lid body. The self-locking terminals are formed by bending a locking piece at one end and a contact piece at the other end, and these self-locking terminals are arranged side by side in the same direction, and the above-mentioned body is placed facing between adjacent self-locking terminals. Alternatively, an electric wire introduction hole is provided in the lid body, and the core wire of the electric wire inserted into this introduction hole is inserted between the intermediate back surface of one of the adjacent self-locking terminals and the other self-locking terminal. A locking terminal device characterized in that it is clamped and locked between a locking piece and a contact piece. (2) The locking terminal device according to claim 1, wherein the self-locking terminal is a clad material made of a conductive layer and a spring layer that are in contact with the core wire.