JPS594460Y2 - crimp connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crimp connector that includes at least a pair of contact fittings, the contact fittings having a contact portion formed at one end and a lead wire crimping portion formed at the other end.

Conventionally, in this type of crimp connector, as shown in FIG. 1, a contact surface a5 of a contact portion a at one end and a lead wire crimp surface b5 of a lead wire crimp portion at the other end are both formed on either the front or back surface. at least one pair of contact fittings C~1. C-2 is fitted into the groove f of the male insulator d and the male insulator e, respectively,
When the male insulator d is fitted to the male insulator e, the contact surfaces a5 of the contact portions a and a of the pair of contact fittings c-1 and c2. A structure in which the a5 portions are in contact with each other is known.

The purpose of the present invention is to reduce the resistance value of the conventional crimp connector, thereby allowing a larger current to flow and making it more compact. 1a, cut from lb,
The contact fittings 1a, lb are of a type in which a contact portion 2 is formed at one end and a lead wire crimping portion 3 is formed at the other end,
The contact surface 2a of the contact portion 2 is formed on one surface 4, and the lead wire crimping surface 3a of the lead wire crimping portion 3 is formed on the back surface 5. When the pair of contact fittings 1a and lb are in contact with each other,
The contact surface 2a of one contact portion 2 is located at or near the back surface 3b of the other lead wire crimping surface 3a.

As shown in FIG. 2, the contact portions 2 of the contact fittings 1a, lb are formed from a leaf-shaped piece bent from the middle portion, and bulge out between the root portion and the bent portion to form a contact surface 2a.

The lead wire crimping part 3 is formed with a U-shaped cross section, and the lead wire 6
The lead wire 6 is crimped by bringing it into contact with the lead wire crimping surface 3a and then bending the raised portion.

The back surface 3b of the lead wire crimping surface 3a of the lead wire crimping part 3
The vicinity is formed flat and gold-plated so as to minimize contact resistance when the contact surface 2a of the contact portion 2 of another contact fitting comes into contact with it.

FIGS. 3 and 4 show the contact fittings 1a and lb, respectively.
The male insulator 8 and the male insulator 9 are shown to be fitted into the groove 7.

Thus, when this male insulator 8 is fitted into the male insulator 9 and the two are connected as shown in FIGS. The contact surface 2a is on the back surface 3b of the lead wire crimping surface 3a of the lead wire crimping section 3 on the contact fitting 1b of the male insulator 9, and on the lead wire crimping surface 3a of the lead wire crimping section 3 on the contact fitting 1b.
The back surface 3b of each contacts the contact surface 2a of the contact portion 2 of the other contact fitting 1b.

In this state, the current is transferred from the contact fitting 1a to the contact fitting 1b.
, the current flows from the contact surface 2a of the contact portion 2 of the contact fitting 1a to the back surface 3 of the lead wire crimping portion 3 of the contact fitting 1b.
The flow is divided into a passage leading to the lead wire 6 through the contact part 1b and a passage leading from the back surface 3b of the lead wire crimping part 3 of the contact fitting 1a to the lead wire 6 through the contact surface 2a of the contact part 2 of the contact fitting 1b. The other circuit can be expressed as shown in FIG. 7A.

On the other hand, the contact fitting c of the conventional crimp connector shown in FIG.
Other circuits such as -1 and c-2 can be expressed as shown in FIG. 7B.

(In the figure, rl is contact part a,) contact surface as, 2a
and the conductor resistance between the lead wire crimping part S and 3, r2 is the contact surface 2
a and the back surface 3b of the lead wire crimping portion 3, or the contact resistance between the contact surface as of the contact portion a of one contact fitting and the contact surface 35 of the contact portion a of another contact fitting.

) As can be easily understood from this figure, the resistance value of the contact fitting of the present invention is significantly smaller than that of the conventional one.

Further, when the contact fittings 1a, lb are in contact with each other, the length between the contact surface 2a of the contact portion 2 and the lead wire crimping portion 3 overlaps, so that this crimping connector is significantly smaller than the conventional one.

In the illustrated embodiment, contact fittings of the same shape are used, but contact fittings of different shapes may be used.

Further, in the figure, the male insulator and the male insulator each have six contact fittings arranged in two rows, but the number of rows and the number of contact fittings can be appropriately selected.

In this way, according to the present invention, the contact surface of the contact part of the contact fitting is formed on one side, and the lead wire crimping part of the lead wire crimping part is formed on the back side, so that when a pair of contact fittings are in contact, one side of the contact part is formed on the other side. Since the contact surface of one contact part is located on or near the back of the other lead wire crimping part, it can be made smaller than the conventional one, and the resistance value can be lowered, so it can be made larger. It has the effect of allowing current to flow.

[Brief explanation of drawings]

Figure 1 is a sectional view of a conventional crimp connector in the connected state;
Figures 6 to 6 show an embodiment of the present invention, Figure 2 is a perspective view of the contact fitting of a crimp connector, and Figures 3 and 4 are views of the male insulator and the male insulator from the mating side. A plan view, FIG. 5 is a side view when the male and male insulators are fitted together, FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5, and FIG. etc. are other circuits. la, lb...Contact fitting, 2...Contact part, 3...Lead wire crimping part, 4...One side of contact fitting, 5... ...Back side of the same metal fitting, 6...
... Lead wire, 7 ... Groove, 8 ... Male insulator, 9 ... Male insulator.

Claims (1)

[Scope of utility model registration request] At least one pair of contact fittings is provided, in which a contact portion is formed at one end and a lead wire crimping portion is formed at the other end, and the contact surface of the contact portion of the contact fitting is connected to the contact portion of the contact fitting. The lead wire crimping surfaces of the lead wire crimping portions are formed on the back surface of the contact fittings on one side of the metal fittings, and when the pair of contact fittings are in contact, the contact surface of one of the contact portions is formed on the other one of the leads. A crimp connector located on or near the back of the wire crimp surface.