JPH10241771A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the assembling of an automatic assembly machine and make a connector thin by bending one end downwards to form a connection part, forming an engaging notch in the bent part and a pulling-out prevention lodging part in the folding piece of the other end and integrally forming a pulling-out prevention part for locking the locking part at the back of the flat plate part of a housing. SOLUTION: A contact piece 11 bends downwards one end part of a thin and slender contact part 30 to from a connection part 38 and an engaging notch in the bent part. A pulling-out prevention locking part 33 is formed in the folding piece 32 which is folded towards the backside of the other end part of the contact part 30. A housing 12 has an inserting hole 23 and a successively moving hole 24 put through from the intermediate part of a flat plate part 22 to one end part, and a pulling-out prevention part 26 is integrally formed at the back of the flay plate part 22. The contact piece 11 and the housing 12 are assembled by low insertion pressure and, especially the pulling-out prevention the vertical direction is performed by the engagement of the engaging notch with the housing 12 and the engagement of the flay part 22 with a gap between the contact piece 30 and the folding piece 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector used for a battery pack of an electronic device.

[0002]

2. Description of the Related Art In general, a connector used for a charger or the like is provided with a plurality of rows of contact pieces 11 having a sufficient width at predetermined intervals in order to transfer power without loss. In addition, it is desired that the assembling be performed by automatic equipment as much as possible.

In a conventional connector, as shown in FIG. 6, an insertion groove 14 is formed in the surface of a housing 12, and when a contact piece 11 is inserted into the insertion groove 14, the press-fitting projections 13 on both sides are inserted. 14 is press-fitted and fixed. In such a configuration, on the upper surface of the contact piece 11,
The portion exposed from between the insertion grooves 14 on both sides becomes the contact width A.

[0004]

In the conventional connector, the press-fitting projection 13 is press-fitted into the insertion groove 14 so that the fixing in the insertion direction is sufficient, but the fixing cannot be performed in the vertical direction. Is fixed in the vertical direction by projecting the upper part of the contact piece 11 toward the upper surface side.

For this reason, the conventional connector has the following problems. (1) A large force is required when assembling the contact piece 11 into the insertion groove 14 by press fitting. (2) To prevent the contact piece 11 from slipping upward, the insertion groove 1
Since the upper part of 4 has a structure protruding inward, the contact width A of the contact piece 11 becomes smaller than the original width of the contact piece 11, and a sufficient contact surface cannot be obtained, and the contact width A becomes narrow. . (3) The thickness B of the housing is increased to prevent the contact piece 11 from coming off to the upper part, and there is a limit to the reduction in thickness. (4) It is not only difficult to assemble, because it is troublesome to press the thin contact piece 11 into the housing 12,
There is a problem in assembly accuracy.

An object of the present invention is to provide a connector which can have a sufficient contact surface on the contact piece 11, can be easily assembled by an automatic device with a low pressure input, and can be made thinner. It is assumed that.

[0007]

According to the present invention, there is provided a connector comprising a contact piece 11 and a housing 12, wherein the contact piece 11 is formed of a conductive metal plate, and one end of an elongated contact portion 30 is bent downward. To form a connecting portion 38, and a bent portion between the contact portion 30 and the connecting portion 38 is provided with an engagement notch 31.
In addition, the other end of the contact portion 30 is folded back to form a folded piece 32, and a locking portion 33 is formed on the folded piece 32, and the housing 12 is formed on the upper surface of the flat plate portion 22. Partition part 2 to which the contact part 30 is fitted
1 are formed at regular intervals, and the insertion hole 23 and the insertion hole 2
3 and is formed so as to penetrate a moving hole 24 narrower than the fitting groove 20, and a retaining portion 26 for retaining the retaining portion 33 of the contact piece 11 on the rear surface of the flat plate portion 22. It is a connector characterized by being formed in.

The connecting portion 38 of the contact piece 11 is connected to the housing 12
And the contact portion 30 is fitted into the fitting groove 20 to make contact with the upper surface of the flat plate portion 22. Then, the folded piece 32 faces the lower surface of the flat plate portion 22. In this state, when the contact piece 11 is moved toward one end of the housing 12, the distal end of the contact piece 11 moves so that the engaging portion 25 is inserted into the engagement notch 31. At the other end, the flat plate portion 22 moves so as to be inserted into a gap formed by the contact portion 30 and the folded piece 32.

When the contact piece 11 is moved to the distal end, the distal guide 34 is prevented from coming off against the elasticity of the return piece 32 by the stopper 2.
Ride on the inclined surface of No. 6 and lock over it. At this time, the bent portion at the tip comes into contact with the front end of the moving hole 24 and stops. When there are a plurality of contact pieces 11, they are all incorporated into the fitting groove 20 of the housing 12 at the same time.

[0010]

Embodiments of the present invention will be described with reference to the drawings. The connector according to the present invention, as shown in FIG.
It comprises a contact piece 11 and a housing 12.

The contact piece 11 is shown in FIGS.
(C) and in the upper half of FIG. This contact piece 11
Is formed by bending a conductive metal plate after press punching. For example, six contact pieces 11 are integrally connected to the support base 37 until assembly. The contact portion 30 at the center of the contact piece 11 has a width of about 1.9 mm and a length of about 13 mm.
The distal end portion is bent downward to form a connecting portion 38. In a bent portion between the contact portion 30 and the connecting portion 38, engagement notches 31 are formed from both sides.

The base of the contact piece 11 is notched except for thin connecting pieces 35 on both sides, and the center portion is contacted with the contact portion 3.
0 at a predetermined interval from the back to form a turned-back piece 32. The turned-up piece 32 has a stopper portion 33 formed at the center and a tip guide portion 34 having a tip bent outward. And The connecting piece 35 is bent in a crank shape, and near the end of the contact portion 30,
A notch portion 36 of a V-shaped groove is formed, and is separated by bending back and forth once at 90 degrees. In order to improve the conductivity, the upper surface of the contact portion 30 and both surfaces of the connection portion 38 are plated with gold.

The housing 12 is shown in FIGS. 2A and 2B.
(C) and in the lower half of FIG. The housing 12 is made of a plastic material and has a width of about 15 mm.
It is molded into a plate having a length of about 40 mm and a thickness of about 2 mm, and for example, six contact pieces 11 are fitted. On the upper surface of the flat plate portion 22 of the housing 12, partition portions 21 parallel to the base portion from the tip portion are formed at regular intervals, and are also formed continuously on the tip portion side. Is the contact portion 30 of the contact piece 11
Are formed into a fitting groove 20 having a width of about 2.0 mm. Further, a fitting groove 20 is provided at an intermediate portion of the flat plate portion 22.
And a moving hole 24 which is continuous with the center of the inserting hole 23 and is sufficiently narrower than the fitting groove 20 is formed to penetrate to the lower surface. ing.

The contact piece 1 is provided on the back surface of the flat plate portion 22.
1 retaining portion 2 for retaining the retaining retaining portion 33
6 are formed so as to protrude integrally. In addition, mounting legs 27 are integrally formed on both sides of the distal end of the housing 12, respectively.

Next, the order of assembly will be described. Contact piece 1
1 and the housing 12 are each set in the automatic assembly equipment. As shown in FIG. 4, the connecting portion 38 of the contact piece 11 is moved to the upper part of the insertion hole 23 of the housing 12, and the contact piece 11 is lowered. Then, first, the connecting portion 38 protrudes downward through the insertion hole 23, and the contact portion 30 fits into the fitting groove 20 and contacts the upper surface of the flat plate portion 22. At this time, the tip guide portion 34 of the folded piece 32 is
To the lower surface position.

In this state, the contact piece 11 is
When the contact portion 30 moves toward the front end portion, the contact portion 30 starts moving while the both sides contact the fitting groove 20 and the lower surface contacts the flat plate portion 22. At the distal end of the contact piece 11, there is an engagement notch 31 on both sides, so that the engaging portion 25 moves so as to be inserted into the engagement notch 31, and at the proximal end of the contact piece 11, a distal guide portion is provided. While the contact 34 is in contact with the lower surface of the flat plate portion 22, the flat portion 2 is inserted into the gap formed by the contact portion 30 and the folded piece 32.
Move so that 2 is inserted.

When the contact piece 11 is moved to the distal end, the distal guide 34 is prevented from coming off against the elasticity of the return piece 32 by the stopper 2.
Ride on the inclined surface of No. 6 and lock over it. At this time, the bent portion at the tip comes into contact with the front end of the moving hole 24 and stops. The six contact pieces 11 are all incorporated into the fitting groove 20 of the housing 12 at the same time. After the assembly, the support base 37 is moved up and down to separate from the notch portion 36. The support base 37 may be separated by mechanical cutting without forming the notch portion 36.

During the assembly, the contact piece 11 was moved.
The contact piece 11 may be fixed and the housing 12 may be moved, or the contact piece 11 and the housing 12 may be moved simultaneously. In short, the assembly is performed by the relative movement of the contact piece 11 and the housing 12. The connector assembled in this manner is attached to a device main body (not shown) by mounting legs 27.
Is attached to the connecting portion 38 of the contact piece 11 by FP.
A lead wire 40 such as C is connected by the solder 19.

In the embodiment shown in FIG. 1, a lead wire 40 such as an FPC is directly connected to the connecting portion 38. However, FIG. 5 shows another embodiment of the present invention.
8 is a pin having a thin tip portion, and this pin-shaped connecting portion 38 is inserted into the through hole 18 of the printed wiring board 17;
It is fixed with solder 19.

In the above embodiment, in order to lock the contact piece 11 to the retaining portion 26 of the housing 12, the folded piece 3
2, the stopper portion 33 is formed. However, the present invention is not limited to this, and the distal end guide portion 34 of the folded piece 32 is bent inward as shown in FIG. You may make it engage with the stop part 26. With such a configuration, it is not necessary to form the retaining locking portion 33. Further, in the above-described embodiment, the retaining portion 26 is formed as a projection, and the retaining portion 33 is formed as a retaining hole. However, the present invention is not limited to this. The locking portion 33 may be an inward projection.

[0021]

According to the present invention, according to the present invention, the contact piece 11 is formed by bending one end of the elongated contact portion 30 downward to form the connecting portion 38 and forming the engaging notch 31 in the bent portion. Further, a retaining portion 33 is formed on a folded piece 32 obtained by folding the other end of the contact portion 30 back, and the housing 12 is provided with an insertion hole 23 extending from an intermediate portion of the flat plate portion 22 to one end thereof.
And a moving hole 24 continuous with the insertion hole 23, and a retaining portion 26 is integrally formed on the back surface of the flat plate portion 22. Therefore, the following effects are obtained.

(1) The contact piece 11 and the housing 12 can be assembled with low pressure. Particularly, the vertical stopper is prevented by the engagement of the engagement notch 31 with the housing 12 and the contact portion 30.
And the engagement of the flat plate portion 22 with the gap between the folded pieces 32 is performed, and the locking in the left-right direction is prevented by the engagement of the engagement notch 31 with the housing 12 and the locking of the locking portion 33. The engagement with the portion 26 is performed, so that the upper and lower and left and right directions are reliably prevented from coming off.

(2) The contact portion 30 of the contact piece 11 is exposed from the front, and a sufficient contact surface can be obtained. (3) It is not necessary to make the housing 12 thicker to prevent the contact piece 11 from coming off to the upper part, and the thickness can be reduced. (4) Since the contact piece 11 can be press-fitted into the housing 12 at low pressure, assembly is easy and assembly accuracy is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a connector according to the present invention.

2A and 2B show an embodiment of a housing 12 according to the present invention, wherein FIG. 2A is a plan view, FIG. 2B is a bottom view, and FIG.
FIG. 2 is a cross-sectional view taken along line cc in FIG.

3A and 3B show an embodiment of a contact piece 11 according to the present invention, wherein FIG. 3A is a plan view, FIG. 3B is a side view, and FIG.
It is a bottom view.

FIG. 4 is a perspective view of a contact piece 11 and a housing 12 according to the present invention.

FIG. 5 is a sectional view showing another embodiment of the connector according to the present invention.

FIG. 6 is a perspective view of a conventional connector.

[Explanation of symbols]

11 contact piece, 12 housing, 13 press-fit projection, 1
4 ... insertion groove, 17 ... printed wiring board, 18 ... through hole, 1
9 solder, 20 fitting groove, 21 partition, 22 flat plate, 23 insertion hole, 24 moving hole, 25 locking part,
26: retaining part, 27: mounting leg, 30: contact part, 3
DESCRIPTION OF SYMBOLS 1 ... Notch of engagement, 32 ... Folding piece, 33 ... Retaining locking part, 34 ... Tip guide part, 35 ... Connection piece, 36 ... Notch part, 37 ... Support base part, 38 ... Connection part, 40 ... Lead wire.

Claims (4)

[Claims] 1. A connector comprising a contact piece (11) and a housing (12), wherein the contact piece (11) has an elongated contact portion (3).
0 is bent downward to form a connecting portion 38, and an engagement notch 31 is formed in a bent portion between the contact portion 30 and the connecting portion 38. The end portion is folded back to form a folded piece 32, and a locking portion 33 is formed on the folded piece 32.
From the middle portion to one end of the flat plate portion 22, an insertion hole 23 and a moving hole 24 continuous with the insertion hole 23 and smaller than the fitting groove 20 are formed to penetrate therethrough.
A connector, wherein a retaining portion 26 for retaining the retaining portion 33 of the contact piece 11 is integrally formed on the back surface of the connector piece. 2. In a connector comprising a contact piece 11 and a housing 12, the contact piece 11 is made of a conductive metal plate, and one end of an elongated contact portion 30 is bent downward to form a connection portion 38. An engagement notch 31 is formed in a bent portion between the contact portion 30 and the connection portion 38, and the other end of the contact portion 30 is folded back to form a folded piece 32. The housing 12 is provided with a retaining portion 33, and the housing 12 has a partition 21 on the upper surface of the flat plate portion 22 at which the contact portion 30 is fitted at regular intervals, and one end from an intermediate portion of the flat plate portion 22. The insertion hole 23 and the fitting groove 2 which is continuous with the insertion hole 23.
And a stopper 26 for retaining the stopper 33 of the contact piece 11 integrally formed on the back surface of the flat plate portion 22. Features connector. 3. A retaining locking portion 33 of the folded piece 32.
The connector according to claim 1 or 2, wherein the connector comprises a hole for retaining, and the tip guide portion 34 of the folded piece 32 is curved outward. 4. A retaining locking portion 33 of the folded piece 32.
3. The connector according to claim 1, wherein the tip guide portion is formed in a hook shape bent inward.