KR920000796Y1 - Jack - Google Patents

Abstract

No content.

Description

jack

1 is a perspective view of the present invention.

2 is a front view.

3 is a longitudinal cross-sectional view.

4 is a bottom perspective view seen from the arrow direction of FIG.

5 is a rear view.

* Explanation of symbols for main parts of the drawings

1 body 4 connection hole

5a, 5b, 5c, 5d, 5e, 5f: terminal 7: uneven portion

9: insertion hole 10, 10a: guide groove

11: impact ball 12a, 12b, 12c, 12d, 12e, 12f: terminal hole

13: binding pin 14: lumbar groove

15: bending groove 16: impact piece

17: bending piece 18, 18a: projection

19, 19a: fastening hole 20, 20a: locking projection

The present invention relates to a jack suitable for an interface such as a key phone and a telephone or personal computer keyboard requiring miniaturization.

Conventional jacks are equipped with the required number of terminals according to the number of functional circuits in the main body, and the soldering parts of the terminals are arranged in a line in the main body. In addition to the difficulties, the terminal should be inserted directly into the terminal hole of the board and soldered, so that the fluid will flow during the soldering operation. Since the main body is mounted only on the circuit after the board is mounted, it will flow when the plug is removed. Had problems falling.

The present invention has been devised to solve such a problem in the prior art, and in order to increase the substrate mountability, soldering fastening pins are installed on the left and right sides of the main body, and six terminals are arranged in two rows on the substrate. It can be inserted on the two-stage inserting part with a strong impact hole to reduce the size of the main body and to select and adjust the number of functional circuits within the range of 2-6 poles, which can reduce cost and at the upper end of the terminal connected to the plug. Four types of gold plating can be selected and adjusted according to the electrical characteristics of the circuit.

This invention is described in detail with reference to the accompanying drawings as follows.

In the central part of the main body 1, a connection hole 4 into which a normal plug 3 having an impact piece 2 can be inserted is formed.

Since the connecting portion of the plug 3 is located above, the connecting portion of the terminal is also located above the main body 1.

The terminal consists of first to sixth terminals 5a, 5b, 5c, 5d, 5e, and 5f.

The upper ends of the terminals 5a, 5b, 5c, 5d, 5e, and 5f are elastically installed to span the openings 6 formed on the back of the main body 1, and the middle part is embedded in the upper part of the main body 1, and then the main body 1 It is bent at the uneven portion 7 formed at the rear end of the upper portion.

The uneven parts 7 are formed to insert the terminals 5a, 5b, 5c, 5d, 5e, and 5f on the substrate 8 alternately in two rows. The lower ends of 5a, 5b, 5c, 5d, 5e, and 5f) are inserted onto the insertion part 9 formed in two stages at the bottom of the back of the main body (1).

The insertion section 9 formed in two stages has a short guide groove 10 formed so that the first terminal 5a, the third terminal 5c, and the fifth terminal 5e can be positioned in a line behind the main body 1. And the guide grooves 10a elongated so that the second terminal 5b, the fourth terminal 5d, and the fifth terminal 5f can be positioned in line in front of the main body 1, are alternately configured.

A clip-shaped impact hole 11 is formed at the end of each of the guide grooves 10 and 10a so that lower ends of the terminals 5a, 5b, 5c, 5d, 5e, and 5f on the impact hole 11 are formed. It is to be hit.

On the other hand, the first terminal hole to the sixth terminal hole (12a, 12b, 12c, 12d) in which the terminals (5a, 5b, 5c, 5d, 5e, 5f) can be inserted correspondingly on the substrate (printed wiring substrate: 8) , 12e, 12f) are drilled in two rows.

Alternatively, the left and right sides of the lower end of the main body 1 are formed with a concave insertion groove 14 and a bending groove 15 in which the fastening pins 13 and 13a can be firmly inserted.

The fastening pins 13 and 13a are for improving the substrate mountability and the substrate holdability. A fastening piece 16 is formed at the center and a bent piece 17 can be pressed to the bent groove 15 at one side thereof. On the left and right sides of the fastening pin 13 which is the lower part of the 15 and the bending piece 17, the projections 18 and 18a which can be pressed into the recess insertion groove 14 are pressed.

The fastening pins 13 and 13a are soldered under the board 8 after the board is mounted. The fastening holes 19 and 19a on which the fastening pins 13 and 13a can be inserted correspondingly are mounted on the board 8. (12a, 12b, 12c, 12d, 12e, 12f) are drilled on both sides.

On both sides of the main body 1, the locking projections 20 and 20a protrudingly formed on both sides of the main body 1, so that the plugs 3 can be inserted and removed so as to correspond to the locking projections 20 and 20a correspondingly. Prevented flow by

Four gold platings are selectively performed on the upper ends of the above-described terminals 5a, 5b, 5c, 5d, 5e, and 5f, i.e., the portions electrically connected to the plugs 3, according to the circuit characteristics. For example, it is determined at 0.1 μm for silver (Ag) alloys, 0.38 μm for platinum (Pt) alloys, 0.76 μm for copper (Cu) alloys, and 1.27 μm for pure gold alloys.

In addition, the present invention shows a case in which six terminals are mounted as an embodiment, but as illustrated in FIG. 4, when the number of functional circuits is two poles, only the first terminal 5a and the second terminal 5b are the main body ( 1) When the number of functional circuits is four poles, the first terminal 5a and the second terminal 5b as well as the third terminal 5c and the fourth terminal 5d are six poles. The fifth terminal 5e and the sixth terminal 5f are mounted on the main body 1, and the terminal can be selectively mounted on the main body 1 according to the number of functional circuits.

Therefore, the first terminal 5a is in the first terminal hole 12a, the second terminal 5b is in the second terminal hole 12b, and the third terminal 5c is in the third terminal hole 12c, The fourth terminal 5d is inserted into the fourth terminal hole 12d, the fifth terminal 5e is inserted into the fifth terminal hole 12e, and the sixth terminal 5f is inserted into the sixth terminal hole 12f, respectively. 13 and 13a mount the main body 1 on the substrate 8 so that it can be inserted into the fastening holes 19 and 19a, and then each terminal 5a, 5b, 5c, 5d, 5e, 5f) and soldering on the fastening pins 13 and 13a, the main body 1 is firmly mounted on the substrate 8 without shaking, so that a reliable working efficiency can be maintained and the plug 3 can be connected after soldering. Even if pulled out, each of the terminals 5a, ..., 5f arranged in two rows, the fastening pins 13, 13a, and the locking projections 20, 20a maintains high reliability of substrate holding.

The present invention is not only excellent in the substrate mounting property and substrate holding property, but also suitable for the interface of a key phone, a telephone or a keyboard of a personal computer requiring miniaturization and miniaturization, and the number of functional circuits can be adjusted according to the number of functional circuits. It is a useful design that can be selected and adjusted according to the electrical characteristics of the circuit, which can contribute to cost reduction because there is no need to manufacture a separate body.

Claims (2)

In a jack having a connection hole 4 in which a connecting portion above the plug 3 can be connected above the main body 1, an intermediate portion of the selected terminals 5a, ..., 5f is embedded in the upper portion of the main body 1. And then bent at the rear uneven portion 7 and formed in two stages at the rear lower end of the main body 1, and each terminal 5a, ..., 5f at each impact hole 11 at the end of the guide groove 10, 10a. It has an inserting portion (9) that can be in contact with the lower end of the two rows alternately, forming the yaw groove 14 and the bending groove 15 on both sides of the main body 1 so that the fastening pins (13, 13a) are firmly inserted. And a locking projection (20, 20a) on both sides of the main body (1). According to claim 1, wherein the fastening piece (16) is formed in the center of the fastening pins (13, 13a) and the bending piece (17) that can be crimped in the bending groove (15) on one side Jacks, characterized in that the left and right sides of the bending piece (17) has a projection (18, 18a) that can be pressed into the concave insertion groove (14).