JP2001185299A - Harness pressure-welding connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harness pressure-welding connector which can correspond to a miniaturization and a lowering in height with a simple contact form, without the need of a pressure-welding punch of a special structure. SOLUTION: An insulator comprising a plural of harness insertion holes where a plural of harnesses are inserted in separately, and a plural of a pair of a contact insertion holes which is approximately rectangular cross to each harness insertion hole and make each harness insertion hole pass through to an external surface of the insulator; wherein each contact inserted in the contact insertion hole, which makes the pair in the insulator has a pair of legs which has a pressure-welding slot by which pressure welding is carried out to the harness inserted in the harness insertion hole, and a contact surface section along with the surface of the insulator, by which a contact to the other party connector when the pair of leg is connected, and the leg is inserted in each contact insertion hole;.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness press-connecting connector having contacts for conducting to a harness (electric wire).

[0002]

2. Description of the Related Art A conventional harness press-connector has a slit in which a contact having a press-contact groove (slit) of a harness is pre-installed in an insulator, a harness is mounted on the insulator corresponding to each contact, and the harness is pushed in. Each harness was pressed (connected) to the contact by pressing each harness into the pressure groove with a pressure punch. For this reason, it is difficult to position the slit of the press-contact punch and the harness at the time of press-contact, and particularly, as the miniaturization of the connector and the thinning of the harness progress, this positioning becomes more difficult. In addition, the press-contact punch itself must be specially developed, which complicates its structure.

In addition, the conventional contact has not only a harness press-contact groove but also a spring contact that conducts with a contact of a mating connector, so that the shape is complicated and the processing thereof is difficult, and the height of the connector is reduced. It was difficult.

[0004]

SUMMARY OF THE INVENTION The present invention is based on the above awareness of the problems with the conventional harness press-connecting connector, and has a simple contact shape, does not require a special press-connecting punch, and can be easily reduced in size and height. An object of the present invention is to obtain a harness press-connecting connector that can be used.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a harness press-connecting connector having contacts which are respectively pressed into contact with a plurality of harnesses. A pair of contact insertion holes is provided to make each harness insertion hole communicate with the outer surface of the insulator, and each contact is inserted into a contact insertion hole forming a pair of insulators, and a harness inserted into the harness insertion hole is provided. A pair of legs having a press-contact groove to be pressed and a pair of legs are connected, and when the pair of legs is inserted into the contact insertion hole, the contact of the mating connector along the outer surface of the insulator. And a contact surface portion of the same.

In the insulator, it is desirable to form a contact storage recess which is located between a pair of contact insertion holes to receive the contact surface of the contact and make the contact surface substantially flush with the outer surface of the insulator. And
By arranging the contact groups in, for example, a staggered manner, the positions of the contact insertion holes adjacent to the insulator can be shifted, and the arrangement pitch of the harness can be narrowed.

The present invention is not limited to the form of the mating connector having a contact for conducting to the contact of the harness press-connecting connector. As the mating connector, a board fixed connector in which a group of contacts is soldered on a board is generally used. is there.

[0008]

The illustrated embodiment shows a mode in which a harness press-connecting connector (plug connector) 20 according to the present invention is connected to a mating connector (reception connector) 10 fixed on a board B. The illustrated mating connector 10
Is an insulator 1 made of a substantially flat rectangular parallelepiped synthetic resin.
1, a connector insertion hole 12 is formed, a number of aligned elastic contact legs 13a of metal contacts 13 face the connector insertion hole 12, and soldering legs 13b are connected to lands (terminals) L on a substrate B. It is a type to be soldered to. Insertion guide grooves 1 are provided at both ends of the insulator 11 in the width direction.
4 is formed (FIG. 1).

The harness press-connecting connector 20 has a substantially flat rectangular parallelepiped synthetic resin insulator 21 inserted into the connector insertion hole 12 of the mating connector 10.
Harness insertion holes 22 are formed in the insulator 21 so that a number of harnesses H are spaced apart from each other and are inserted in parallel. The arrangement pitch of the harness insertion holes 22 is equal to the arrangement pitch of the contacts 13 of the mating connector 10.

The insulator 21 also has a pair of contact insertion holes 2 corresponding to the respective harness insertion holes 22.
3 are formed. The contact insertion hole 23 is orthogonal to the harness insertion hole 22 and is sufficiently wider than the diameter of the hole, so that the harness insertion hole 22 communicates with the outer surface of the insulator 21. A pair of contact insertion holes 23 formed with adjacent harness insertion holes 22 is formed.
Are formed in a staggered manner with their axial positions alternately different from each other in order to reduce the arrangement pitch of the harness insertion holes 22. In addition, a contact receiving recess 24 is formed between the pair of contact insertion holes 23. The insertion guide grooves 1 of the insulator 11 on the mating connector 10 side are provided at both ends in the width direction of the insulator 21.
4, an insertion guide projection 25 (FIGS. 1 and 4) to be inserted into the insertion guide groove 14 is formed.

As shown in FIG. 2, the metal contact 30 has a pair of leg portions 31 inserted into a pair of contact insertion holes 23 and a contact surface portion 32 connecting the pair of leg portions 31. And has a U-shape as a whole. The pair of leg portions 31 has the same shape, and has a knife-edge-shaped harness press-contact groove 33 in the center thereof, the opposite side of the contact surface portion 32 being open. This harness press contact groove 33
In order to facilitate relative pressure welding of the harness H, the width of the harness H at the entrance is sufficiently larger than the diameter of the harness H, and the width is gradually narrowed toward the inner portion of the pressure welding so that the outer diameter of the harness H becomes smaller. The width narrows and eventually breaks the harness coating and contacts the core wire.

In assembling the harness press-connecting connector 20 described above, each harness insertion hole 2 of the insulator 21 is used.
2, the ends of the harness H are inserted, and in this state, the legs 31 of the contact 30 are inserted into the pair of harness insertion holes 22. At the time of this insertion, as shown in FIG. 4, it is only necessary to press the contact 30 into the contact insertion hole 23 with the press-contact punch P. When the harness H is press-fitted (press-fitted) relatively to the leg 31 of the contact 30, the insulating coating is broken, and the inner core wire and the contact 30 are conducted. The punch P only needs to have a function of simply pushing the contact 30, and can simultaneously push the plurality of contacts 30 into the harness insertion hole 22 and the contact insertion hole 23 of the insulator 21. When the insertion is completed, the contact surface 32 of the contact 30 is housed in the contact housing recess 24 of the insulator 21, and is substantially flush with the outer surface of the insulator 21. The adjacent contacts 30 follow the staggered arrangement of the contact insertion holes 23 and the contact storage recesses 24, and follow the insulator 2.
1 are staggered on the outer surface.

The harness press-connecting connector 20 assembled as described above is inserted into the connector insertion hole 12 of the mating connector 10 fixed on the board B. Then, the contact surface portion 32 of each contact 30 is electrically connected to each contact 13 of the mating connector 10, and the harness H is connected to the board B.
To each land L.

In the above embodiment, the contact 30 is provided only on one surface of the insulator 21 of the harness press-connecting connector 20.
Is a single-sided contact type, but of course, a double-sided contact type in which the contacts 30 are provided on the front and back of the insulator 21 is also possible. In this case, the contacts 11 facing both sides of the connector insertion hole 12 are also provided in the insulator 11 of the mating connector 10 on the mating side. Also,
In the illustrated embodiment, the mating connector 10 is soldered on the board B, but the harness press-connecting connector 20
Obviously, the mode of the mating connector may be a connector other than the board fixed type.

[0015]

As described above, the harness press-connecting connector of the present invention is inexpensive because the contact has a simple shape and does not require a press-connecting punch having a special structure. In addition, the arrangement pitch of the harness is narrowed, so that miniaturization and reduction in height can be easily achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a harness press-connecting connector according to the present invention in a state before a mating connector is connected to a board.

FIG. 2 is an exploded enlarged perspective view of the harness press-connecting connector of FIG.

FIG. 3 is a perspective view showing a connection state between the harness and the contact, and a contact between the contact and a board connection contact.

FIG. 4 is a sectional view showing a state before a harness and a contact are inserted into a harness press-connecting connector.

FIG. 5 is a sectional view showing a state before the harness press-connecting connector is inserted into the mating connector.

FIG. 6 is a cross-sectional view showing a state where the harness press-connecting connector is inserted into a mating connector.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;

[Explanation of symbols]

 B Board L Land H Harness P Pressing Punch 10 Mating Connector 11 Insulator 12 Connector Insertion Hole 13 Contact 13a Elastic Contact Leg 13b Soldering Leg 14 Insertion Guide Groove 20 Harness Pressure Contact Connector 21 Insulator 22 Harness Insertion Hole 23 Contact Insertion Hole 24 Contact Storage Recess 25 Insertion guide protrusion 30 Contact 31 Leg 32 Contact surface 33 Harness press contact groove

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E012 AA08 AA32 AA41 5E023 AA04 AA13 AA16 BB02 BB03 BB22 CC23 CC26 DD22 EE01 EE10 FF01 FF15 GG01 GG15 GG20 HH01 HH03 HH06 HH17

Claims (3)

[Claims] 1. A harness press-connecting connector having contacts respectively pressed into contact with a plurality of harnesses, the insulator comprising: a harness insertion hole for inserting a plurality of harnesses apart; A contact insertion hole that makes a pair of the harness insertion hole and the outer surface of the insulator; and each contact is inserted into the pair of the contact insertion hole of the insulator and the harness inserted into the harness insertion hole. A pair of legs having a press-contact groove to be pressed; a pair of legs connected to each other, and a contact surface with a contact of a mating connector along the outer surface of the insulator when the leg is inserted into the contact insertion hole. And a harness press-connector. 2. The harness press-connecting connector according to claim 1, wherein the insulator is disposed between the pair of contact insertion holes to accommodate a contact surface portion of the contact.
A harness press-connecting connector in which a storage recess is formed so that the contact surface portion is substantially flush with the outer surface of the insulator. 3. The harness press-connecting connector according to claim 1, wherein the contact groups are arranged in a staggered manner.