JPH10270134A - Terminal press-in structure of connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal press-in structure capable of narrowing the juxtaposition pitch of a terminal with easy processing of a molding die for molding a housing. SOLUTION: A housing 1 having a side wall 11 and an opening part 12 is formed in the shape of a nearly bottomed box, and a projecting ribs 14 projecting from the side wall 11 are juxtaposed along a direction perpendicular to a bottom face of the housing 1. A terminal 2 having a long plates shape is provided with a contact part 23 making contact with another terminal and with a connection part 21 connected to a printed board. A medial portion 22 is provided having a press-in part 22c which projects in its width direction and which is formed in the shape of L-letter by folding the terminal 2 from the connection part 21. The press-in part 22c is press fitted in an insertion groove 14c formed between the projecting ribs 14 so that it is in juxtaposition with the side wall 11 of the housing 1. In such terminal press-in structure of a connector, the projecting ribs 14 are constituted so that a slanted part 14b provided with a slanted face 14a formed at an acute angle to a side face 11a of the side wall 11 is disposed on the end part close to the opening part 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector press-fitting structure for connecting a printed board connected to a terminal to another terminal.

[0002]

2. Description of the Related Art Conventionally, as a terminal press-fitting structure for a connector of this kind, there is a structure shown in FIGS. This is formed in a substantially bottomed box shape having a side wall A1 and an opening A2, and a housing A having an insertion groove A3 arranged in the side wall A1 and a contact portion C1 for contacting another terminal. An elongated plate-shaped terminal C provided with a connection portion C2 to be connected to the printed circuit board B. The terminal C has a press-fit portion C3 protruding to both width sides and is bent from the connection portion C2 into a substantially L-shape. The press-fit portion C3 is press-fitted into the insertion groove A3 of the housing A, and the side wall A1 of the housing A is provided.
It is installed side by side.

[0003] More specifically, the protruding portion A4 is inserted into the insertion groove A3.
Is provided on the side wall A1 at the corresponding position, and engages with one surface of the press-fitting portion C3 to position the intermediate portion C4 in the direction orthogonal to the wall surface A5 of the side wall A1 so that the connection portion of the printed circuit board B to the board surface B1 is formed. Terminal flatness of C2 is ensured.

[0004]

In the conventional connector terminal press-fitting structure described above, the protrusion A provided on the side wall A1 is provided.
4 secures the terminal flatness of the connection portion C2, and the connection portion C2 can be connected to the substrate surface B1 of the printed circuit board B by solder in a state of being in close contact with the surface without forming a gap.

However, since the protruding portion A4 is provided at a position corresponding to the insertion groove A3 so as to engage with the press-fitting portion C3, the structure of the side wall A1 becomes complicated, and machining of a molding die for molding the housing A becomes difficult. It became difficult, and there was a limit in narrowing the pitch of the insertion grooves A3, that is, the pitch of the terminals C.

When the protrusion A4 is not provided, as shown in FIGS. 5 and 6, the terminal C is connected to the intermediate portion C4 by the wall A.
5 and is not positioned parallel to the wall surface A5 in the direction perpendicular to the wall 5, so that the terminal flatness of the connecting portion C2 cannot be secured, and a gap is formed between the printed circuit board B and the connection, which makes connection difficult. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a terminal for a connector in which a molding die for molding a housing can be easily processed and the pitch at which the terminals are juxtaposed can be reduced. It is to provide a press-fitting structure.

[0008]

According to a first aspect of the present invention, there is provided an apparatus having a substantially box-like shape having a bottom and a side wall and an opening. The housing includes a housing in which ribs are arranged side by side in a direction orthogonal to the bottom surface, a long plate-shaped terminal provided with a contact portion that contacts another terminal and a connection portion that connects to a printed board,
The terminal is formed in a substantially L-shape from the connection portion and has an intermediate portion having a press-fit portion protruding to both sides of the width, and the press-fit portion is press-fitted into the insertion groove between the protruding ribs and is arranged side by side on the side wall of the housing. A terminal press-fitting structure for a connector, wherein the projecting rib has a configuration in which an inclined portion provided with an inclined surface forming an acute angle with the wall surface of the side wall is disposed at an end on the opening side.

According to a second aspect of the present invention, there is provided the terminal according to the first aspect, wherein the intermediate portion extends from the connection portion and is bent into a substantially L-shape. It is configured to be formed in a substantially U-shape with another piece extending from.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a housing made of an insulating resin.
Both side walls 1 which are formed in a substantially bottomed box shape having a side wall 11, an opening 12 and a bottom surface 13 and projecting ribs 14 are opposed to each other.
A plurality is provided so as to project from 1, 11 and is arranged side by side in a direction orthogonal to the bottom surface 13. Projecting rib 14 is inclined surface 14
a is provided at the end on the opening 12 side,
An angle between the inclined surface 14a and the wall surface 11a of the side wall 11 is formed at an acute angle α, and an insertion groove 14c is formed between the protruding ribs 14, and the notch groove 15 is formed at a position corresponding to the insertion groove 14c. Are arranged side by side along the bottom surface 13.

Reference numeral 2 denotes a terminal made of an elastic copper alloy.
A connecting portion 21 formed in a long plate shape and connected to the printed circuit board 4 described later, a piece 22a extending from the connecting portion 21 and bent substantially in an L shape, and extending from the piece 22a. Intermediate portion 22 formed in a U-shape with the other piece 22b
And a contact portion 23 bent from the other piece 22b. Further, the press-fit portion 22c has a guide surface 22d whose width decreases as it goes to the connection portion 21 side.
The two pieces 22a protrude from both sides of the width.

The other terminal 3 is formed in a rod shape from a flat copper or copper alloy, and is arranged side by side with the body 31 to form the terminal 2.
Contacts with the contact portion 23. The printed board 4 is formed in a plate shape using a resin such as glass epoxy, has a board surface 41, and a circuit is formed on the board surface 41.

Here, one piece 22a of the intermediate portion 22 is inserted into the insertion groove 14c between the two projecting ribs 14. Slope 14a
Forms an acute angle α with the wall surface 11a.
When the guide surface 22d of the press-fitting portion 22c comes into contact with the inclined portion 14b of the protruding rib 14, the force is applied to the wall surface 11a side,
The piece 22a is positioned at a position where the piece 22a is in close contact with the wall surface 11a.

Therefore, the terminal 2 is pressed into the insertion groove 14c with the intermediate portion 22 positioned, and
Is drawn out of the side wall 11, the other piece 22b of the intermediate portion 22 is accommodated in the cutout groove 15, and the contact portion 23 is introduced into the box-shaped interior of the housing 1. At this time, the intermediate part 2
Since 2 is bent in a U-shape, the other piece 22 b extends from one piece 22 a toward the bottom surface 13 of the housing 1. The terminals 2 are press-fitted in this manner and are arranged side by side on the side walls 11 of the housing 1.

The handling operation of this will be described. The connection part 21 of the terminal 2 is connected to the printed board 4 by soldering. At this time, one piece 22a of the intermediate portion 22 is
1a, the insertion groove 1
4c, the flatness of the terminal in the direction perpendicular to the wall surface 11a of the side wall 11, that is, the direction along the substrate surface 41 of the printed circuit board 4 is secured. , And is firmly connected by soldering. Then, another terminal 3 juxtaposed to the body 31 is inserted into the inside of the box shape of the housing 1 and comes into contact with the contact portion 23, so that another terminal 3 and the printed circuit board 4 are electrically connected.

In such a connector press-fitting structure, as described above, the inclined portion 14 having the inclined surface 14a is provided.
b is provided at one end of the protruding rib 14 and its inclined surface 1
4a forms an acute angle α with the wall surface 11a, so that when the intermediate portion 22 of the terminal 2 is inserted into the insertion groove 14c between the two projecting ribs 14, the press-fitting portions 22 projecting from both sides of the width of the intermediate portion 22 are formed.
c receives the force toward the wall surface 11a by the inclined portion 14b,
The piece 22a of the intermediate portion 22 is press-fitted while being positioned at a position in close contact with the wall surface 11a, so that the terminal flatness of the connection portion 21 can be improved, and the projecting rib 14 and the inclined portion 14b
Has a simple shape, so that the terminal 2 has been difficult in the past.
Can be easily realized.

Further, the intermediate portion 22 of the terminal 2 is extended from the connection portion 21 and is bent substantially in a U shape by one piece 22a and the other piece 22b which are bent in a substantially L shape. Piece 22b
Extends from the piece 22a toward the bottom surface 13 of the housing 1, that is, the intermediate portion 22 and the contact portion 23 are located substantially in parallel inside the box shape of the housing 1, and the direction along the wall surface 11a, Miniaturization in the vertical direction can be realized.

In this embodiment, the intermediate portion 2 of the terminal 2
2 is formed in a U-shape by one piece 22a extending from the connecting part 21 and provided with the press-fitting part 22c and another piece 22b extending from the one piece 22a, but without forming the other piece 22b, one piece 22a is formed. May be used as an intermediate part, and is not limited.

[0020]

According to the first aspect of the present invention, the inclined portion having the inclined surface is provided at the end of the protruding rib, and the inclined surface forms an acute angle with the wall surface of the side wall. When inserted into the insertion groove between the protruding ribs, the press-fitted parts projecting to both sides of the width of the middle part received the force toward the wall surface with the inclined part, and the middle part was positioned at the position where it was in close contact with the wall surface The flatness of the terminals at the connection part along the direction orthogonal to the wall surface can be improved by press-fitting in a state, and the protruding ribs and inclined parts have simple shapes, so narrowing the juxtaposed pitch of terminals, which was difficult in the past. Can be easily realized.

According to a second aspect of the present invention, in addition to the effects of the first aspect, an intermediate portion of the terminal extends from the connection portion and is formed into one L-shaped piece and the other piece. Since it is bent into a substantially U-shape, the other piece extends from one piece toward the bottom surface of the housing, that is, the middle portion and the contact portion are located substantially parallel inside the box shape of the housing, and Along the direction, that is, downsizing in the height direction can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front sectional view of the same.

FIG. 3 is a perspective view showing a conventional example.

FIG. 4 is a front sectional view of the same.

FIG. 5 is a perspective view when the same protrusion is not provided.

FIG. 6 is a front cross-sectional view when the same protrusion is not provided.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 11 Side wall 12 Opening 13 Bottom 14 Projecting rib 14a Inclined surface 14b Inclined portion 14c Insertion groove 2 Terminal 21 Connecting portion 22 Intermediate portion 22a One piece 22b Other piece 22c Press-fit part 23 Contact part 3 Another terminal

Claims (2)

[Claims] 1. A housing formed in a substantially bottomed box shape having a side wall and an opening, and projecting ribs protruding from the side wall being arranged side by side in a direction orthogonal to a bottom surface, and contacting another terminal. A long plate-shaped terminal provided with a contact portion to be connected and a connection portion to be connected to the printed circuit board. The terminal is formed into a substantially L-shape from the connection portion, and has a press-fit portion protruding to both width sides. A terminal press-fitting structure of a connector in which a press-fit portion is press-fitted into an insertion groove between protruding ribs and is juxtaposed on a side wall of the housing, wherein the protruding rib forms an acute angle with a wall surface of the side wall. A terminal press-fitting structure for a connector, characterized in that an inclined portion provided with is provided at an end on the opening side. 2. The terminal is formed in a substantially U-shape by a piece in which the intermediate portion extends from the connection portion and is bent in a substantially L-shape, and another piece extending from the one piece. The terminal press-fitting structure for a connector according to claim 1, wherein: