JPH0963676A - Female contacts for electrical sockets - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a female contact for an electric socket, which is capable of obtaining a sufficiently large contact pressure and hardly causing contact failure. SOLUTION: This female contact for electric socket 1C
Is to be fitted and pressure contacted with the round pin male contact 10 of the mating electric socket connector, and has a hollow portion for inserting the round pin male contact 10 and extends in the uniaxial direction. The depth d is uniaxial from a predetermined radial portion including the center of the one end portion that is present and has an annular cross-section and is a fitting side with the round pin-shaped male contact 10.
It has two slotted notches 1c that are slotted in 3, and is slotted in a uniaxial direction at a depth d3 'that is much shallower than the depth d3 from the radial portion that is perpendicular to the predetermined radial portion. It has three slit notches 1c ', and when it is fitted and pressure-contacted with the round pin-shaped male contact 10, stable contact is made at four points and a large contact pressure is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a female contact for an electric socket which is press-fitted with a pin-shaped male contact of a mating electric socket connector.

[0002]

2. Description of the Related Art Conventionally, this type of female socket contact for an electric socket is of a type shown in FIGS. 2 (a) and 2 (b), for example. However, FIG. 2A relates to an external perspective view of the contact for an electric socket, and FIG.
Shows a sectional view taken along the line AA ′ in FIG.

This female contact 1A for electric sockets
Is to be fitted and pressure contacted with the round pin male contact 10 of the mating electric socket connector, and has a hollow portion for inserting the round pin male contact 10 and extends in the uniaxial direction. It is present and has two annular notches 1a which are circular in cross section and which are uniaxially slit at a depth d1 from a radial portion including the center thereof.

When the female contact 1A for an electric socket is press-fitted to the male pin 10 having a round pin shape, the tip of the male contact 10 having a round pin shape is inserted into the hollow portion to narrow the periphery of the slit notch 1a. It In this state, the female contact 1A for the electric socket and the round pin male contact 10
As shown in FIG. 2B, the inner wall of the hollow portion and the outer periphery of the tip of the round pin-shaped male contact 10 are in contact with each other at two points.

3 (a) and 3 (b) show another female contact for an electric socket, FIG. 3 (a) relates to an external perspective view thereof, and FIG. 3 (b) shows the same ( A in a)
It is related to the cross-sectional view in the −A ′ direction.

[0006] In this female contact 1B for an electric socket, two slotted notches 1b are provided which are uniaxially slotted at a depth d2 from a predetermined radial portion including the center of an annular cross section. Besides, two slits 1b 'are similarly provided which are uniaxially slit from the radial portion at right angles to the predetermined radial portion at a depth d2.

When the female contact 1B for an electric socket is fitted and pressure-contacted with the male pin 10 having a round pin shape, the female contact 1B for an electric socket and the male pin 10 having a round pin shape are shown in FIG. 3B. As shown, the inner wall of the hollow portion and the outer circumference of the tip of the round pin-shaped male contact 10 are contacted at four points.

[0008]

In the case of the female contact for an electric socket having the above-mentioned two slotted notches, two points (macroscopically) are formed when it is fitted and pressure-contacted with the round pin-shaped male contact of the mating connector. In general, they are in contact with each other at two linear positions), so that there is an advantage that a sufficiently large contact pressure can be obtained. On the other hand, however, foreign matter such as dust is not attached to any contact before the fitting pressure contact. If it is attached, there is a drawback that poor contact is likely to occur.

On the other hand, in the case of a female contact for an electric socket having four slotted cutouts, four points (macroscopically, a linear shape are formed when they are press-fitted to a round pin-shaped male contact of a mating connector). Since contact is made at 4 locations, even if foreign matter such as dust adheres to any of the contacts before fitting pressure welding, there is an advantage that contact failure is unlikely to occur, but on the other hand, a sufficiently large contact There is a drawback that pressure cannot be obtained.

The present invention has been made to solve the above problems, and its technical problem is to provide a female contact for an electric socket which is capable of obtaining a sufficiently large contact pressure and hardly causing contact failure. To do.

[0011]

According to the present invention, the pin-shaped male contact of the mating electric socket connector is fitted and pressure-welded, and the cross-sectional shape is annular and extends in the uniaxial direction. To the uniaxial direction from different radial portions that are present and have the same circumferential angle including the center of the annular shape of the one end portion that is the fitting side with the pin-shaped male contact. In female contacts for electrical sockets with multiple slotted cutouts, at least one existing in different radial parts with respect to multiple slotted cutouts is less than the specified depth and more than others A female contact for an electric socket is obtained which is also shallowly slotted.

In this female contact for an electric socket, it is preferable that at least one of the other slots existing in different radial portions with respect to the plurality of slotted notches is slotted deeper than a predetermined depth.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a detailed description of the female contacts for electric sockets according to the present invention with reference to the drawings.

FIG. 1 shows a female contact for an electric socket according to an embodiment of the present invention. FIG. 1 (a) relates to its external perspective view, and FIG. 1 (b) shows it. 10) is a cross-sectional view taken along the line A-A 'in FIG.

This female contact 1C for electric sockets
Is also fitted and pressure contacted with the round pin male contact 10 of the mating electric socket connector, and has a hollow portion for inserting the round pin male contact 10 and has a uniaxial direction. Although extending, in this female contact 1C for an electric socket, a predetermined radial direction including the center in the annular shape of the one end portion which has an annular cross-sectional shape and is a fitting side with the round pin-shaped male contact 10 Depth d from the part in the uniaxial direction
It has two slotted notches 1c that are slotted in 3, and is slotted in a uniaxial direction at a depth d3 'that is much shallower than the depth d3 from the radial portion that is perpendicular to the predetermined radial portion. It has three slotted notches 1c '.

That is, the female contact 1C for an electric socket has two kinds of slit cutouts 1c and 1c 'having different depths, and the depth d of the slit cutout 1c.
3 is deeper than the depth d2 of the conventional four slotted notches 1b as described in FIGS. 3 (a) and 3 (b).
The depth d3 of the slot cutout 1c is as shown in FIG.
Two conventional slotted notches 1 as described in (b)
It may be about the same as the depth d1 of a or slightly shallower than that. By the way, the depths d3 and d3 'of the slot cutouts 1c and 1c' are shown in FIGS. 2 (a), 2 (b) and 3 (a), respectively.
Each slit notch 1a, 1b, 1b 'described in (b)
If expressed in terms of magnitude with depths d1 and d2 of d3 '<d
2 ≦ d3 ≦ d1.

When the female contact 1C for an electric socket is press-fitted to the round pin male contact 10, the tip of the round pin male contact 10 is inserted into the hollow portion to surround the slits 1c and 1c '. Squeeze. In this state, the female contact 1C for an electric socket and the round pin male contact 10 are in contact with the inner wall of the hollow portion and the outer periphery of the round pin male contact 10 at four points as shown in FIG. 1B. However, the depth d3 'of the slot cutout 1c' is much shallower than the depth d3 of the slot cutout 1c, and the depth d3 of the slot cutout 1c is more than the depth d2 of the conventional type. Since it is deep, even if contact is made at four points, a sufficiently large contact pressure can be obtained. As a result, the advantage of four-point contact is utilized, and contact failure is less likely to occur.

In the above-mentioned embodiment, the female contact for the electric socket having the four slit notches 1c and 1c 'has been described, but the slit notch is formed on the fitting side with the pin-shaped male contact 10. A plurality of different numbers may be provided, for example, six or eight, in different radial portions including the center of the one end of the ring shape and having the same circumferential angle.

In such a case, at least one existing in a different radial portion of each slotted notch has a structure in which the slot is shallower than the others and has a depth less than a predetermined depth. If at least one of them is slit deeper than a predetermined depth, the same operational effect as in the case of the embodiment can be obtained.

That is, to give an example based on the structure described in the embodiment, the slot cutout portion 1c 'having a depth d3' has a depth d.
An example is a female contact for an electric socket (not shown) having eight slotted notches 1c and 1c 'which are located between each of the three slotted notches 1c. Therefore, the present invention is not limited to the examples.

[0021]

As described above, according to the present invention, the conventional female contact for an electric socket having a plurality of slit notches having a predetermined depth is improved, and a plurality of slit notches are provided. Of at least one existing in different radial parts of the other is shallower than a predetermined depth and at least one of the other is deeper than the depth of the same type as the conventional one. As a result, a sufficiently large contact pressure can be obtained even when contact is made at multiple points when the mating pressure contact is made with the round pin male contact of the mating electrical socket connector. It is extremely useful because the advantage of not causing defects is utilized.

[Brief description of drawings]

1A and 1B show a basic structure of a female contact for an electric socket according to an embodiment of the present invention, in which FIG. 1A relates to an external perspective view, and FIG. 1B shows AA ′ in FIG. It relates to a sectional view in the direction.

FIG. 2 shows a basic structure of a conventional female contact for an electric socket, wherein (a) relates to an external perspective view,
(B) relates to a cross-sectional view in the AA 'direction in (a).

3A and 3B show the basic structure of another conventional female contact for an electric socket, in which FIG. 3A is a perspective view showing the appearance, and FIG. 3B is a sectional view taken along line AA ′ in FIG. 3A. It is about.

[Explanation of symbols]

 1A, 1B, 1C Female contacts for electric sockets 1a, 1b, 1b ', 1c, 1c' Slotted notch 10 Round pin male contact

Claims (2)

[Claims] 1. A pin-shaped male contact which is press-fitted and mated with a pin-shaped male contact of a mating electrical socket connector and which has a ring-shaped cross section and extends in one axial direction. A plurality of slits, each of which has a predetermined depth in the uniaxial direction, from different radial portions that have the same circumferential angle including the center of the one end that is the mating side with In a female contact for an electric socket having a cutout, at least one existing in the different radial portions with respect to the plurality of slit cutouts is less than the predetermined depth and is shallower than the others. Female contacts for electric sockets characterized by 2. The female contact for an electric socket according to claim 1, wherein at least one of the other ones present in the different radial portions with respect to the plurality of slit cutouts is deeply ground to be equal to or larger than the predetermined depth. Female contacts for electrical sockets characterized by being split.