JPH11339906A - Substrate mount connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a substrate mount connector which is formed from a sheet of a metal board, has a simple structure and an absorbing function of a positional error. SOLUTION: A substrate connector 1 is constructed such that legs 4 for surface mounting which are suspended from four corners of an almost rectangular fitting surface 2, and an aperture 12 is formed at the fitting surface 2. Contact pieces 8, 8 are projected from the outside of the fitting surface 2 toward the inner and downward direction so as to form opposed contact parts 10a. A guide part 14 which is inclined downward is formed at the inner edge of the aperture 12, and an inserted tab terminal is guided by the guide part 14 in the case that its positioning is slightly deviated. The tab terminal is abutted against the fitting surface 2 in the case that the positioning of the tab terminal is largely deviated, and thus a deformation of the contact piece 8 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly, to a board-mounted connector that can be mounted on a board such as an FPC.

[0002]

2. Description of the Related Art Conventionally, as a connector attached to an FPC, an FP disclosed in Japanese Patent Application Laid-Open No. 8-306408 has been proposed.
Connectors for C are known. This connector 100 is shown in FIG.
A pair of contact pieces 106 are provided at a front end 104 of a substantially U-shaped main body 102 formed by bending a metal plate as shown in FIG.
The male terminal 110 of the other party is received between the facing contact pieces 106, and electrical connection is made. The main body 102 includes the mounting member 12.
The FPC (substrate) 130 inserted into the opening 122 and bent into the opening 122 is attached to the mounting member 120 and the main body 10.
2 between the male terminal 110 and the FPC.
An electrical connection with 130 has been achieved. At this time, the free end 108 of the contact piece 106 comes into contact with the main body 102 and the male terminal 1
The contact pressure between the contact piece 10 and the contact piece 106 is increased.

[0003]

In the above-mentioned conventional example, the FPC 130 must be processed and the mounting member 120 must also be processed, so that the dimensions are increased, the mass productivity is poor, and the production cannot be performed at low cost. Further, if the terminal is misaligned with the counterpart terminal, the contact piece 106 is stretched, and it is difficult to absorb the misalignment. If they are fitted in a state of being largely displaced, the male terminal 110 abuts against the contact piece 106, causing the contact piece 106 to be plastically deformed, and the reliability of the electrical connection may be impaired. Furthermore, there is a problem that it cannot be arranged on a substrate together with another mounted product and connected collectively by reflow soldering.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a board mounting type connector which does not require processing of a board, is excellent in mass productivity, has a simple structure, is small in size, and is inexpensive. Aim.

Another object of the present invention is to provide a board-mounted connector having high electrical connection reliability which does not cause deformation of the contact piece even when the connector is connected to the mating male terminal with a large displacement. That is.

Another object of the present invention is to provide a board-mounted connector which can easily absorb a positional deviation from a mating male terminal.

[0007]

According to the present invention, there is provided a board-mounted connector formed by stamping a metal plate and receiving a mating male terminal. The mating surface extends from the outside of the mating surface. A contact piece disposed behind the mating surface and in contact with the male terminal, and protrudingly provided on the contact piece side from the fitting surface,
And a leg attachable to the substrate.

The fitting surface has a substantially planar shape, and it is desirable that an opening for receiving the male terminal is formed at a substantially central portion thereof.

It is desirable to provide a guide portion for guiding the male terminal by bending the inner edge of the opening inward.

It is desirable that the legs that can be attached to the substrate be provided on the outside of the mating surface and that can be surface-mounted.

It is desirable that the contact portion of the contact piece that contacts the male terminal is aligned with the guide portion.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a board-mounted connector (hereinafter simply referred to as a connector) 1 of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a connector 1 according to a first embodiment of the present invention. FIG. 2 is a plan view of the connector 1 of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG.
This shows a state where the tab terminal (male terminal) 80 of the other party is inserted. Hereinafter, a description will be given with reference to FIGS.

The connector 1 is formed by stamping and bending a single metal plate. The metal plate is preferably made of an elastic material such as phosphor bronze. Two pairs of legs 4 opposing from the four corners of the substantially rectangular fitting surface 2 are bent downward substantially at right angles to the fitting surface 2, and further, the tips of the legs 4 are bent outward at right angles. Connection 6 is formed. From both sides of the fitting surface 2, between the adjacent legs 4, 4, the contact pieces 8, 8 are bent downward and inward via the curved portions 8a.

The tip 10 of the contact piece 8 extends downward substantially in parallel with the leg 4 to form an opposing contact portion 10a with a narrow gap.
This gap is set smaller than the thickness of the tab terminal (FIG. 3) 80. A rectangular opening 12 is formed substantially at the center of the fitting surface 2, and the tongue piece, that is, the guide portion 14 is configured to be inclined inward and downward from the inner edge corresponding to the contact piece 8. . Opposite tips 14a, 14a of the tongue piece 14
2 is set to be larger than the gap formed by the contact portion 10a as is clear from FIG. The length of the tongue piece 14, that is, the dimension along the fitting surface 2 is longer than the contact portion 10a.

Referring to FIG. 2, the tongue piece 14 and the contact portion 10a can be seen. The contact piece 8 and the leg 4 are separated by a slot 16 punched from a metal plate. As shown in FIG. 3, the leg 4 is surface-mounted at a connection portion 6 on a substrate 20 such as an FPC by soldering. Since the connection portion 6 can be easily visually recognized from the outside, the mounting state can be easily determined. In addition, mounting is a connector
Since it is made at the four outer corners of 1, the mounting strength is high.

Next, the state in which the tab terminal 80 is inserted will be described. As shown in FIG.
When the tab terminal 80 is inserted into the opening 12, the tab terminal 80 is inserted between the opposing contact portions 10a, 10a.
The gap between the contact portion 10a and the tip portion 80
a is electrically connected. At this time, if the tab terminal 80 is not properly aligned with the gap between the contact portions 10a, 10a, the tab terminal 80 is inserted while being in contact with and guided by one of the tongue pieces 14, 14. Further, the displacement of the tab terminal 80 from the contact portion 80a is absorbed by the bending of the contact piece 8. That is, an appropriate electrical connection is made between the tab terminal 80 and the connector 1 by the floating function of the contact piece 8.

Next, FIGS. 4 and 5 show a connector 1 'according to a second embodiment. FIG. 4 is a plan view of the connector 1 ', and FIG. 5 is a sectional view taken along line 5-5 in FIG. In the description, the same parts as those in the first embodiment will be described by adding the same reference numeral with a prime. The second embodiment is different from the first embodiment in that the shape of the contact piece 8 ′, the additional tongue piece,
That is, it is the guide section 30. 4 and 5, an additional tongue 30 extends inwardly and downwardly from the inner edges of the longitudinal ends of the opening 12 'in the opening 12' of the mating surface 2 '. Since the tongue pieces 30, 30 are arranged so as to be orthogonal to the tongue pieces 14 ', 14', misalignment of the tab terminal 80 in any direction can be guided. The tongue pieces 30, 30 are formed by cutting and raising from the fitting surface 27.
Numeral 30 is inclined inward, and its tip 30a is approximately the same height as the tip 14a 'of the tongue piece 14'.

The contact piece 8 'extends obliquely inward and downward via the curved portion 8a' as in the first embodiment.
However, the front ends 10 ′, 10 ′ face each other via the contact portion 10 a ′ having the narrowest gap therebetween, and then further outwardly curving.
0, and the tip 10b faces slightly upward so as to move away from the substrate 20. The tip 10 ′ is usually
However, when the tab terminal 80 is inserted, the contact pieces 8 ′ and 8 ′ expand and the tip 10 ′ moves toward the substrate 20, and the lower end 11 of the tip 10 ′ Substrate 2
Tip 10 'can be dimensioned to contact zero. Thus, when the tab terminal 80 is connected to the contact piece 8 ′, the contact pressure increases due to the resistance of the substrate 20, and the electrical connection can be reliably performed. Since the lower end 11 has a curved shape, the lower end 11 can move without damaging the surface of the substrate 20.

As described above, since the connectors 1, 1 'of the present invention are formed from a single metal plate, the number of parts is extremely small and the structure is simple. The above-described first embodiment and second embodiment
In any of the embodiments, the connectors 1, 1 'can be surface-mounted without special processing on the substrate 20. As described above, the preferred embodiments of the present invention have been described. However, it is easily understood by those skilled in the art that various modifications and changes are possible regardless of the above-described embodiments. For example, the shape of the legs 4, 4 'may be for dip, that is, for the through hole of the substrate. By setting the length of the leg to an appropriate size, the connector can be made extremely low-profile.

[0021]

The board-mounted connector of the present invention is formed by stamping a metal plate, and has a mating surface for receiving a mating male terminal, extending from outside of the mating surface, and behind the mating surface. It is characterized by having a contact piece arranged to be in contact with the male terminal and a leg protruding from the mating surface to the contact one side and attachable to the board, so that processing of the board is unnecessary and mass production is possible. A small-sized board-mounted connector with excellent characteristics, simple structure, and low cost can be obtained. Furthermore, a board-mounted connector with high reliability of electrical connection, which does not cause deformation of the contact piece even when connected to the mating male terminal in a state of being displaced, can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a board-mounted connector according to a first embodiment of the present invention.

FIG. 2 is a plan view of the connector of FIG.

FIG. 3 is a cross-sectional view of the connector of FIG. 2 taken along line 3-3, and shows the mating tab terminal.

FIG. 4 is a plan view showing a board-mounted connector according to a second embodiment of the present invention.

FIG. 5 is a sectional view of the connector, taken along line 5-5 in FIG. 4;

FIG. 6 is a sectional view showing a conventional example.

[Explanation of symbols]

 1, 1 'board-mounted connector 2, 2' mating surface 4, 4 'leg 8, 8' contact piece 80 male terminal

Claims (1)

[Claims] 1. A mating surface formed by stamping a metal plate to receive a mating male terminal, and the male terminal extending from the outside of the mating surface and disposed behind the mating surface. A board-attached connector comprising: a contact piece having elasticity for contact; and a leg protruding from the fitting surface to the contact piece side and attachable to a board.