JPH062562U - Plug-in connector - Google Patents

Abstract

(57) [Abstract] [Purpose] Simplifies the structure of the conductor that electrically connects the electric wires in the plug-in connector, and improves processing and assembly,
Moreover, it enables reliable electrical connection. [Structure] Inside a holder 11, an electric conductor 20 for pressing and sandwiching a plurality of electric wire peeling portions 1 is arranged. The conductor is a base end portion 22 having an electric wire insertion hole 21 orthogonal to the electric wire insertion direction and a pair of side surface portions 2 extending in the insertion direction from both side edges thereof.
A conductive member 25 composed of 3, 24 is provided. This conductive member is formed by bending a metal plate material. An electric wire pressure-contacting leaf spring 27 having a pressure-contact piece 27a for pressing the inserted electric wire peeling portion against one of the side surface portions is arranged in the conductive member. An engaging portion 25 that is engaged with the holder inner wall portion and restricts movement in the inner wall surface direction is provided on one of the side surface portions of the conductive member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plug-in connector that can easily and properly connect to another wire simply by inserting one end of the wire.

[0002]

[Prior art]

 This type of plug-in connector has a structure in which a conductor consisting of a conductive plate for connecting wires to each other and a spring piece for pressing the wires against the conductive plate is installed inside a holder made of a heat-resistant insulating material. Have According to such a plug-in connector, anyone can easily carry out the wiring work by peeling off the coating of the wire connection end to be connected and simply inserting the peeled portion from the insertion hole of the holder. Conventionally, those having various structures are known, including Japanese Utility Model Publication No. 1-2228, Japanese Utility Model Publication No. 1-293738, and the like.

[0003]

[Problems to be solved by the device]

 By the way, one of the requirements for the above-mentioned plug-in connector is that the peeling part, which is the wire connection end, can be easily inserted into the holder, and the plug can be securely prevented from coming out after it is inserted. In addition, there is a pressure contact structure by the conductor of the wire that can secure the contact area by the pressure contact between the conductor and the peeling end of the wire in this state, and can make an electrical connection with high reliability. It is desired that such a conductor has a relatively simple structure and is excellent in workability and assembling of each part.

Conventionally, as such an electric conductor, an electric conductor made of a copper plate or the like and a leaf spring having a spring piece attached to the electric conductor plate for pressing the peeled portion of the electric wire into contact with each other have been used. There is. However, in the case of previously known conductors, it is easy to insert the stripped part of the inserted wire, secure the electrical connection by securing the contact area and contact pressure, and prevent the stripped part of the inserted wire from coming off. , Nothing that can satisfy both parties has been proposed yet.

In particular, in fixing the base end portion of the leaf spring to the above-mentioned conductive plate, conventionally, a plurality of electric wires are inserted into one plate portion of the conductive plate that is bent and formed to have, for example, an L shape. A through hole is provided and a caulking piece is provided on the outer edge side of the through hole.The projection provided on a part of the through hole is passed through the hole formed on the leaf spring side, and these are caulked to form the base of the leaf spring. In many cases, the ends are crimped and fixed to a conductive plate.

However, in the case of a conductor made of a conductive plate and a leaf spring by such caulking, not only is it troublesome to process and assemble each of these parts, but also to insert the wire into the wire insertion hole of the conductive plate, When a leaf spring is pressed against the insertion end side of this wire to make an electrical connection, a force is applied to the wire receiving portion of this conductive plate and the tip of the leaf spring, which causes a A part of the conductive plate with the wire insertion hole or the caulking part of the leaf spring is applied as a deforming force, and the part of the conductive plate with the wire insertion hole or the caulking part separates the tip of the leaf spring from the wire and presses the wire. Was deformed in the direction of decreasing, and as a result, the electrical conductivity was deteriorated.

Further, in such a conventional conductor, the tip end side of the leaf spring is easily lifted up from the conductive plate depending on the crimping state of the fixed portion by crimping, whereby the leaf spring and the electric wire receiving portion of the conductive plate are The gap between the wires is larger than the diameter of the wire, and even if the wire is inserted, it is easy to cause the problem that the leaf spring cannot bite into the wire to prevent it from coming off. It is hoped that some possible measures will be taken.

Further, in the above-described conventional conductor, when the electric wire stripping portion is inserted and removed in a state where the electric conductor is assembled in the holder, it is easy to rattle in the holder, and a required electric wire stripping portion is inserted or removed. There is a problem that it cannot be pulled out, and there is also a problem that when such a wire peeling part is inserted and removed, the pressure contact force of the leaf spring and the assembly part of this leaf spring and the conductive plate are adversely affected. It is also necessary to consider points.

Further, as the above-mentioned conductor, a conductive frame made of a conductive plate material formed to have a substantially rectangular tube shape with four surfaces parallel to the wire insertion direction, and a plurality of partition plates partitioning the inside into a plurality of sections And a plurality of pressure-contacting leaf springs that press-connect the wire-stripping portion that is incorporated and inserted in each compartment to the inner surface of the conductive frame.

However, according to such a configuration, the number of constituent parts such as the conductor is large, the structure is complicated, and there is a problem in terms of workability and assemblability, and the conductive frame is formed. Each surface is parallel to the wire insertion direction, and when a large number of wires are inserted, each surface of this conductive frame swells to the outside and is easily deformed, resulting in lack of reliability and durability of wire connection. However, it is necessary to consider such points.

[0011]

[Means for Solving the Problems]

 In order to meet such a demand, the plug-in connector according to the present invention is a conductive connector for connecting to another wire by pressing and holding the peeled part of the wire which is arranged in the holder and inserted from the wire insertion hole. A metal plate member having a base end portion that is orthogonal to the electric wire insertion direction and in which a plurality of electric wire insertion holes are arranged in parallel, and a pair of side surface portions that extend from both side edges of the body in parallel with the electric wire insertion direction. An electric wire having a conductive member formed by bending a wire and a pressure contact piece for pressing the peeling part of the electric wire, which is arranged in the conductive member and inserted from each of the electric wire insertion holes, to the inner surface side of one of the side surface parts. It is composed of a pressure contact leaf spring and is locked to a part of the inner wall of the holder on one of the side surfaces of the conductive member to restrict the movement of the inner wall of the holder in the surface direction. Provided with a locking part Than it is.

[0012]

[Action]

 According to the present invention, a metal plate material is formed by bending a base end portion orthogonal to the wire insertion direction and a pair of side surface portions extending from both side edges thereof in parallel with the wire insertion direction. A conductor is constructed by arranging a wire spring for wire pressure contact with a plurality of pressure contact pieces in a conductive member inside the holder, and incorporating this into a holder. By locking the connector to the inner wall of the holder, a plug-in connector can be obtained which is internally installed in a state in which the movement of the conductor in the wire insertion direction or the wire extraction direction is restricted.

Then, in this plug-in connector, the wire peeling portion is inserted from the wire insertion hole of the holder, and the tip portion thereof is inserted into the wire insertion hole of the conductive member which constitutes the conductor, so that the wire peeling portion is made conductive. It can be connected to other wires by holding it with the pressure contact piece of the wire spring for wire pressure contact in the member, and the conductor moves in the holder in the plane direction of its inner wall, that is, the insertion or It is locked so as to regulate the movement in the extraction direction.

[0014]

【Example】

 1 to 5 show one embodiment of a plug-in connector according to the present invention. In these drawings, this embodiment shows a type in which two electric wires 1 are connected. As the electric wires 1, generally, single-core electric wires are used, and the connecting end of each of them to the connector, which is the connecting end, is peeled off by peeling the insulation coating, as is well known. Section (hereinafter referred to as the electric wire peeling section 1).

As is apparent from FIGS. 1 to 5 and the like, the plug-in connector, generally designated by reference numeral 10, is formed in a substantially housing shape in which one side is opened by a synthetic resin material having heat resistant insulation. The holder 11 and the electric conductor 20 for electrically connecting the electric wires to each other by pressing and holding the electric wire peeling portion 1 which is built in the holder 11 and inserted therein.

Here, in the present embodiment, the holder 11 described above opens the installation space 12 of the conductor 20 at one end side (electric wire insertion side), as is clear from FIGS. 1, 2, and 3. It is formed so as to have a substantially housing shape. In the drawing, 13 is a locking groove formed in a notch in an inner wall portion of the holder 11 forming the space 12, 13a is a die-cutting hole thereof, 14 is a step portion for positioning a conductor 20 which will be described later, 15 Is an opening of the installation space 12 that also serves as a wire insertion hole.

According to the present invention, the electric wire peeling portion 1 disposed in the space 15 in the holder 11 as described above is pressed and held to electrically connect with another electric wire (not shown). As is apparent from FIGS. 1, 2, 4, and 5, the conductor 20 to be performed has a base end 22 that is orthogonal to the wire insertion direction and has a plurality of wire insertion holes 21 arranged in parallel, and both sides thereof. A conductive member 26 having a pair of side surface portions 23 and 24 extending in parallel to the wire insertion direction from the edge and formed so as to have a substantially U shape by bending a metal plate material, and the conductive member 26. An electric wire pressure-contacting leaf spring 27 having a pressure-contact piece 27a for pressing the electric-wire peeling portion 1 which is disposed inside the electric wire insertion hole 21 into the inner surface of one of the side surface portions (side surface portion 24); Of the conductive member 26 and The one side surface portion (23) is engaged with a part of the inner wall portion of the holder 11 (the engagement groove 13 in this embodiment), so that the inner wall portion of the holder 11 moves in the surface direction (the present embodiment). The example is characterized in that a locking projection 25 which serves as a locking portion for restricting the movement of the electric wire in the pulling direction) is provided by cutting and raising or the like.

Here, in this embodiment, the conductive member 26 is made of a conductive metal plate material such as tin, as is apparent from FIGS. 4 (a), (b), (c) and (d). A conductive plate material having a predetermined thickness, such as a plated copper plate, is bent so as to have a substantially U-shape as a whole, and the locking projection 25 is cut from a part of one of the side surface portions 23. It is formed by raising.

Further, as is apparent from FIGS. 5A and 5B, the wire pressure contact leaf spring 27 is formed in a substantially V-shape, and its base end portion is formed on one side of the conductive member 26. It is arranged along the inside of the side surface portion 23, and the other end side is extended obliquely downward and functions as a pressure contact piece 27a. In the figure, 27b is a slit for forming the press-contact piece 27a corresponding to each wire insertion hole 21.

Further, in such a configuration, the base end portion 22 orthogonal to the electric wire insertion direction and the pair of side surface portions 23 and 24 extending from both side edges thereof in parallel to the electric wire insertion direction are provided. The conductor 20 is formed by simply assembling and disposing the electric wire pressure contact leaf spring 27 having a plurality of pressure contact pieces 27a in the conductive member 26 formed by bending the plate material. In addition, by assembling this from the opening 15 in the holder 11 and locking a part of the locking projection 25 in the locking groove 13 formed in the inner wall of the holder 11, the conductor 20 in the wire extraction direction can be removed. It is possible to obtain the plug-in type connector 10 which is internally installed in a state in which the movement is restricted. Here, the above-described movement of the conductor 20 in the wire insertion direction is locked by the bottom surface portion of the holder 11.

Further, in the holder 11, the step portion 14 is formed in a state where the one side surface portion 23 of the above-mentioned conductive member 26 and the base end portion of the electric wire pressure contact leaf spring 27 arranged in parallel inside thereof are overlapped. This is a portion for locking and ensuring the locked state of the locking projection 25 in the locking groove 13.

Therefore, in the plug-in connector 10 having such a configuration, the wire peeling portion 1 is inserted through the opening 15 on the wire insertion side of the holder 11, and the tip of the wire peeling portion 1 is inserted into the wire of the conductive member 26 constituting the conductor 20. By inserting the electric wire peeling portion 1 into the hole 21 by the pressure contact piece 27a of the electric wire pressure contact leaf spring 27 in the conductive member 26, the electric wire peeling portion 1 is appropriately and reliably connected to another electric wire. The electric conductor 20 is locked in the holder 11 so as to regulate the movement of the inner wall of the electric conductor 20 in the plane direction, that is, the movement of the electric wire in the pulling-out direction.

According to the plug-in connector 10 according to the present invention, the conductor 20 is formed by bending the conductive member 26 and the leaf spring material, which are obtained by a simple bending process from the metal plate material, and forming the slit 27b. It is recommended that the electric wire pressure contact leaf spring 27, etc. is assembled by a simple combination, and that it is assembled in the holder 11 and locked by the locking means (25, 13) to be integrally assembled. It is advantageous in terms of assembling.

Here, according to the above-described structure, the locking state of the locking projection 25 can be released by inserting a jig or the like into the die-cutting hole 13a of the locking groove 13, whereby the conductor It is possible to take 20 out of the holder 11.

With such a configuration, the workability and assembling of each part constituting the conductor 20 are excellent, the structure of the conductor 20 is simple and the cost is low, and the conductor 20 is assembled in the holder 11. In addition, the electric wire peeling portion 1 can be pressed and clamped in a required state for reliable electrical connection.

In particular, according to the present invention, the conductive member 25 is formed by bending a metal plate material so as to have a substantially U shape in which the side surface portions 23 and 24 extend in the wire insertion direction. Forming the outer shell of the conductor 20 and incorporating the wire pressure contact leaf spring 27 having the pressure contact piece 27a inside the conductor 20 to form the conductor 20, and restrain these in the holder 11 in the wire withdrawing direction. By installing the cable in this state, the force when inserting and removing the wire is held properly in the holder 11 and the conductor 20 does not deform outwards, so that it functions as the conductor 20. There is an advantage that it can be done.

It should be noted that the present invention is not limited to the structure of the above-described embodiment, and the shape and structure of each part can be appropriately modified and changed. For example, as the structure of the holder 11 of the connector 10, etc. Modifications are possible. Further, in the above-described embodiment, the case where the locking projection 25 is provided on the side of the conductive member 26 as the locking means and the locking groove 13 as the receiving thereof is formed in the holder 11 is shown, but the invention is not limited to this. The groove, the projection, and the like for locking the locking projection 25 may be provided on the inner wall portion of the holder 11, and the locking portion other than the locking projection 25 may be provided on the conductive member 26.

Further, according to the present invention, as the conductive member 26, for example, as shown in FIGS. 6 and 7, a metal plate material is formed by bending so as to have a rectangular shape as a whole, and its starting end is Needless to say, it may be configured to incline inwardly so as to face the tip end portion of the pressure contact piece 27a of the leaf spring 27 for pressure contact, and to clamp the wire peeling portion 1 between them. Further, in this case, as shown in the drawing, the end portion of the metal plate material is extended outward by inclining, and this is engaged with the locking groove 13 provided in the holder 11 as a locking piece (denoted by 25 in the figure). You may make it stop. The locking groove 13 may be formed by, for example, die cutting from the side of the holder 11, but may be formed by another method.

Further, in the embodiment shown in FIGS. 6 and 7 described above, the cap body 17 is locked in the opening of the holder 11 by the locking structure of the locking projection 17a and the locking hole 17b. Moreover, although the case where the electric wire insertion hole 17c is formed in this is shown, it is needless to say that such a cap body 17 may be provided as necessary and may be omitted.

In contrast to the above-described embodiment, a wire insertion hole may be provided at the bottom of the holder 11 and the conductor 20 may be incorporated from the opposite side of the opened holder 11. is there.

[0031]

[Effect of device]

 As described above, according to the plug-in connector of the present invention, the electric conductor which is arranged in the holder and holds the peeling portion of the electric wire under pressure to connect to another electric wire is orthogonal to the electric wire inserting direction. In addition, it has a base end part where a plurality of wire insertion holes are arranged side by side and a pair of side surface parts that extend parallel to the wire insertion direction from both side edges of the base end part. And a leaf spring for wire pressure contact, which has a pressure contact piece for pressing the wire peeling portion, which is disposed in the conductive member and inserted from each wire insertion hole, to the inner surface side of one of the side surface parts. In addition, since a locking portion is provided on one of the side surface portions of the conductive member to restrict movement of the holder inner wall portion in the surface direction by being locked to a part of the holder inner wall portion. , Regardless of the simple structure, Each part is excellent in workability and assemblability, and can be easily assembled in the holder. In addition, it can hold the peeling part of the wire under pressure in a required condition to ensure reliable electrical connection. There is an effect.

In particular, in the present invention, the outer shell of the conductor is formed by the conductive member that is bent and formed from a metal plate material so that the side surface portion extends in the wire insertion direction to have a substantially U-shape. In addition, a conductor is formed by assembling a wire pressure contact leaf spring with a pressure contact piece inside the conductor, and these are installed inside the holder with the wire pulled out or constrained in the insertion direction, so that the wire can be inserted and removed. There is an advantage that the acting force at the time is appropriately locked and held in the holder, the conductor does not deform outward, and the function as the conductor can be exhibited.

[Brief description of drawings]

FIG. 1 is a side sectional view of an essential part showing an embodiment of a plug-in connector according to the present invention.

FIG. 2 is an end view as seen from the wire insertion side of FIG.

FIG. 3 shows a holder suitable for application to the present invention, (a) is a sectional view of a main part, (b) and (c) are end views as seen from both sides thereof, and (d).
[Fig. 3] is a main-portion cross-sectional view taken along a position different from that of (a).

FIG. 4 shows a conductive member that constitutes a conductor, (a) is a side sectional view, (b) and (c) are end views seen from both sides, and (d) is (a).
FIG.

FIG. 5 shows a leaf spring for pressure contact with an electric wire, (a) is a side sectional view,
(b) is a plan view thereof.

FIG. 6 is a side sectional view of an essential part showing another embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view showing a usage state of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric wire (electric wire peeling part) 10 Plug-in connector 11 Holder 12 Arrangement space 13 Locking groove 13a Mold removal hole 14 Step part 15 Opening part 20 Conductor 21 Electric wire insertion hole 22 Base end part 23 Side part 24 Side part 25 Engagement Stop protrusion (locking portion) 26 Conductive member 27 Leaf spring for wire pressure contact 27a Pressure contact piece

Claims (1)

[Scope of utility model registration request] 1. A plug-type connector for connecting a peeling portion of an electric wire inserted from an electric wire insertion hole to another electric wire by sandwiching the peeling portion of the electric wire with an electric conductor arranged in a holder. Bending a metal plate material that has a base end portion that is orthogonal to the electric wire insertion direction and in which a plurality of electric wire insertion holes are arranged in parallel, and a pair of side surface portions that extend from both side edges in parallel with the electric wire insertion direction And a leaf spring for wire pressure contact, which has a conductive member formed by the above-described method and a pressure contact piece that presses a wire peeling portion disposed in the conductive member and inserted from each of the wire insertion holes to an inner surface side of one of the side surface portions. And a locking portion that restricts the movement of the holder inner wall portion in the surface direction by being locked to a part of the holder inner wall portion on one of the side surface portions of the conductive member. Specially provided Plug-in connector to be.