JP2537459Y2 - Board mounting structure of electrical connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector board mounting structure.

[0002]

2. Description of the Related Art A conventional board mounting structure of this type includes:
It is disclosed in Japanese Patent Publication No. 3-29274. According to this disclosed technique, as shown in FIGS. 12 to 15, a metal member 30 having a plate shape is provided. The metal member 30 includes an insertion portion 32 inserted into an insulating case 31 of an electric connector 35 and an insertion portion 32. The metal member 30 is provided with a pin portion 33 and a lip portion 34 projecting perpendicularly from the insertion portion 32. The pin portion 33 is inserted into a wall portion between the hole 38 and the bottom surface 39 of the insulating case and attached to the electric connector 35, and the pin portion 33 protrudes from the bottom portion of the insulating case 31.

When the electrical connector 35 is mounted on the board 36, the pin 33 of the metal member 30 is connected to the board 36.
To improve the mounting strength (mechanical strength) of the electrical connector 35.

[0004]

However, in the above-mentioned conventional board mounting structure for an electrical connector, the insertion portion 32 of the metal member 30 is inserted into the insulating case 31. As shown in FIG. 13, when the thickness a of the wall between the terminal mounting holes 38 of the insulating case 31 and the thickness b of the wall between the lowermost terminal mounting hole 38 and the bottom 39 of the insulating case 31 are small, It is technically difficult to attach the metal member 30 to the insulating case 31, and even if it can be attached, there is a problem that it is difficult to obtain mechanical strength.

The present invention has been made in view of the above-mentioned problems, and has as its object the thickness a of the wall portion between the terminal mounting holes of the insulating case and the lowermost terminal mounting. It is an object of the present invention to provide a board mounting structure for an electrical connector that can mount a metal member even when the thickness b of a wall portion between the hole and the bottom surface of the insulating case is small and can improve the mounting strength.

[0006]

In order to achieve the above object, the present invention provides a plurality of fixing pins on the bottom of an insulating case of an electric connector, and these fixing pins are connected to the insulating case. A metal member is fitted and fixed to an integrally formed pin body, a fixing pin hole is formed in the substrate side, and the fixing member is inserted into the fixing pin hole and the metal member is soldered to the substrate side. It is characterized by the following.

[0007]

With this configuration, even when the thickness a of the wall between the terminal mounting holes of the insulating case and the thickness b of the wall between the lowest terminal mounting hole and the bottom surface of the insulating case are small, the metal member can be used. Can be mounted, and the mounting strength can be improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an electrical connector having a board mounting structure according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a bottom view thereof, and FIG. 4 is a side view thereof.

The electrical connector 1 has an insulating case 2 which is a rectangular block.
In the front part 2a of the insulating case 2, a large number of terminal mounting holes 3 are formed at equal pitches that pass from the front part 2a to the back part 2b, and terminals 4 are mounted in these terminal mounting holes 3. The legs 5 of the terminals 4 project rearward, and these legs 5 are bent at right angles.

A plurality of polar key mounting projections 6 are formed on the bottom surface 2c of the insulating case 2 at the front side at predetermined intervals in the left-right direction, and are fixed to the rear of the bottom surface 2c. A plurality of pin bodies 7 and positioning pin bodies 8 are provided.

That is, fixed pin bodies 7 are provided at a predetermined pitch interval behind the bottom surface 2c, and the positioning pin bodies 8 are positioned between the fixed pin bodies 7 so that the positioning pin bodies 8 have a predetermined pitch. The fixing pin bodies 7 and the positioning pin bodies 8 are arranged linearly at intervals.

As shown in FIG. 9, the fixing pin body 7 includes a resin pin body 10 and a metal member 11 integrally formed with the insulating case 2.
a is formed, and the metal member 11 is a cylindrical body having a split groove 11a in a part of the circumference as shown in FIG. Then, the metal member 11 is fitted to the pin main body 10 and fitted by a spring property to form the fixed pin body 7.
In addition, the terminal 4 of the electrical connector 1 configured as described above.
The alignment member 13 is attached to the leg portion 5 of FIG.

Further, as shown in FIG. 11, a plurality of fixing pin holes 15 are formed at predetermined intervals along an edge 14a of the substrate 14, and these fixing pin holes 15 are formed on the metal seat body. The metal seat 16 is fitted to the substrate 14. Further, a plurality of positioning holes 17 are formed at predetermined intervals between the fixing pin holes 15. A large number of through holes 18 are formed in the substrate 14.

Next, mounting of the electrical connector 1 on the board 14 will be described. The leg 5 of the terminal 4 of the electrical connector 1 is inserted into the through hole 18, the positioning pin 8 is inserted into the positioning hole 17, and the fixing pin 7 is inserted into the fixing pin hole 15, and the bottom of the insulating case 2 is inserted. 2c is brought into contact with the substrate 14 on the mounting surface. Then, the leg 5 of the terminal 4 is connected to the through hole 18.
And the metal member 11 of the fixing pin body 7 is soldered to the metal seat body 16.

According to the above embodiment, the fixing pin 7 of the bottom surface 2c of the insulating case 2 is fitted to the electrical connector 1 and the metal member 11 is fitted and fixed to the pin body 10 formed integrally with the insulating case 2. A metal fixing pin hole 15 is formed on the substrate 14 side, the fixing pin body 7 is inserted into the fixing pin hole 15 and the metal member 11 is soldered to the fixing pin hole 15 to form the insulating case 2. The metal member 11 can be attached even when the thickness a of the wall between the terminal mounting holes 3 and the thickness b of the wall between the lowermost terminal mounting hole 3 and the bottom surface 2c of the insulating case 2 are small. Thus, the mounting strength (mechanical strength) can be improved.

[0016]

As described above, according to the present invention, a plurality of fixing pins are provided on the bottom of an insulating case of an electric connector, and these fixing pins are formed integrally with the insulating case. By fixing a metal member on the substrate, forming a fixing pin hole on the substrate side, inserting the fixing pin body into the fixing pin hole and soldering the metal member to the substrate side, Since a metal member as a separate member is not inserted between the portion between the terminal mounting holes of the insulating case and the portion between the lowermost terminal mounting hole and the bottom of the insulating case, the distance between the terminal mounting holes of the case is reduced. Even if the thickness a of the flesh portion and the thickness b of the flesh portion between the lowermost terminal mounting hole and the bottom surface of the insulating case are thin, the metal member can be mounted and the mounting strength (mechanical strength) is improved Can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view of an electrical connector having a board mounting structure according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a side view of the same.

FIG. 5 is a front view of an insulating case of the electric connector.

FIG. 6 is a bottom view of the same.

FIG. 7 is a rear view of the same.

FIG. 8 is a side view of the same.

FIG. 9A is an explanatory diagram of a disassembled state of a fixing pin body. (2) is a side view of the fixing pin body. (3) is the same cross-sectional view.

FIG. 10A is a plan view of a metal member. (2) is the same side view.

FIG. 11 is a plan view of a substrate.

FIG. 12 is a longitudinal sectional view showing a state where an electric connector is mounted on a substrate by a conventional substrate mounting structure.

FIG. 13 is a front view of the same.

FIG. 14 is a bottom view of the same.

FIG. 15A is a side view of a metal member. (2) is the same front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connector 2 Insulating case 7 Fixed pin body 10 Pin body 11 Metal member 14 Substrate 15 Fixed pin hole

Claims (1)

(57) [Scope of request for utility model registration] A plurality of fixing pin bodies are provided on a bottom surface of an insulating case of an electric connector, and these fixing pin bodies are fixed by fitting a metal member to a pin body integrally formed with the insulating case. A fixing pin hole is formed in the board side, and the fixing pin body is inserted into the fixing pin hole and the metal member is soldered to the board side.