JPH07282873A - Board connector and connecting method therewith - Google Patents

Abstract

PURPOSE:To provide a board connector having high reliability and causing no cost increase without increasing the soldering process. CONSTITUTION:This board connector 100 is provided with a pair of connection sections 110 formed with nearly Y-shaped notches 111 to be kept in contact with a conductor 510 ruptured with an insulating film 520 without cutting the conductor 510 of a pressed-in wiring cable 500 and a connection section 120 connecting a pair of connection sections 110. A wiring pattern formed on a board 600 and the board connector 100 are connected, the wiring cable 500 is pressed into the nearly Y-shaped notches 111 of the connection sections 110 of the board connector 100 fitted to the board 600, the insulating film 520 is ruptured without cutting the conductor 510 of the pressed-in wiring cable 500, and the board connector 100 is continued with the conductor 510.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board connector to which a wiring cable formed by coating a conductor with an insulating film is connected.
The present invention relates to a connection method using this board connector.

[0002]

2. Description of the Related Art As a method of connecting a wiring cable to a wiring pattern formed on a substrate, a method of directly soldering the conductor of the wiring cable to the wiring pattern and mounting a male or female type connector connected to the wiring pattern are mounted. However, there is a method in which a female or male connector corresponding to the male or female connector is connected to the wiring cable, and both connectors are coupled.

For example, as shown in FIG. 5, a mouse 800, which is an input device for a computer, has a mouse body 810.
And a wiring cable 500 for connecting the computer main body (not shown). This wiring cable 50
0 is a male or female connector 830 to which a conductor is connected
And a female or male connector 840 mounted on a substrate 820 built in the mouse body 810.
Connected to 00. That is, they are connected by the method described above.

[0004]

However, the method of connecting the wiring cable to the wiring pattern formed on the above-mentioned substrate has the following problems. That is,
This method requires two soldering steps, a reflow soldering step or a dip soldering step for mounting the electronic component on the substrate and a manual soldering step for connecting the wiring cable. In addition, the method (1) requires male and female connectors, which increases the number of parts and causes a cost increase. Moreover, since the number of contact points increases, the reliability is poor.

The present invention was devised in view of the above circumstances, and provides a board connector which has high reliability without increasing the number of soldering steps and which does not cause high cost, and a connecting method using the same. It is intended to be provided.

[0006]

A board connector according to the present invention is for connecting a wiring cable formed by coating a conductor with an insulating coating, without cutting the conductor of the wiring cable press-fitted. A pair of connecting portions formed by breaking the insulating coating and forming a substantially Y-shaped notch that contacts the conductor;
And a connecting portion that connects the pair of connecting portions.

Further, the connecting portion is provided with a leg portion projectingly inserted into an opening formed in the substrate.

On the other hand, the connection portion may be formed with a soldering piece connected to a land portion formed in the wiring pattern of the substrate.

Further, a soldering piece connected to a land portion formed on the wiring pattern of the substrate may be formed on the connecting portion connecting the connecting portions.

Further, in the connection method using the board connector according to the present invention, the insulating film is broken without cutting the conductor of the wiring cable press-fitted, and the Y-shaped contact is made in contact with the conductor.
A connection method using a board connector having a pair of connecting portions having a V-shaped cut and a connecting portion connecting the pair of connecting portions, wherein the wiring pattern formed on the substrate and the substrate Process for connecting with the connector for wiring and press-fitting the wiring cable formed by covering the conductor with the insulating film in the substantially Y-shaped notch of the connecting portion of the connector for board mounted on the substrate, and press-fitted wiring A step of breaking the insulating coating without cutting the conductor of the cable to bring the board connector and the conductor into conduction.

[0011]

FIG. 1 is a schematic perspective view of a board connector according to a first embodiment of the present invention, and FIG. 2 illustrates a connection method using the board connector according to the first embodiment of the present invention. Fig. 3 is a schematic perspective view, Fig. 3 is a schematic exploded perspective view of a mouse using the board connector according to the first embodiment of the present invention, and Fig. 4 is a board connector according to another embodiment of the present invention. FIG. 6A is a perspective view of the board connector according to the second embodiment, and FIG. 7B is a schematic perspective view of the board connector according to the third embodiment; FIG. 7C is a schematic perspective view of the board connector according to the fourth embodiment.

First, the wiring cable 500 and the board 600 connected by the board connector 100 according to the first embodiment will be described. The wiring cable 500
Is generally used and has a conductor 5 in the center.
10 and the insulating coating 520 covers the periphery thereof. The insulating coating 520 is flexible and is designed to break when a certain amount of force is applied. on the other hand,
The conductor 510 is also stiffer than the insulating coating 520, but has flexibility.

A predetermined wiring pattern (not shown) is formed on the back surface of the substrate 600. This wiring pattern is used for the electronic component or the board connector 100 (not shown).
Etc. are connected to each other. Board connector 100
An opening 610 into which the leg portion 130 of the board connector 100 is inserted is formed in a portion to which is attached.

As shown in FIG. 1, the board connector 100 according to the first embodiment for connecting the wiring cable 500 and the wiring pattern cuts the conductor 510 of the wiring cable 500 press-fitted. Insulating film 5 without
20 includes a pair of connecting portions 110 in which a substantially Y-shaped notch 111 that breaks 20 and comes into contact with the conductor 510 is formed, and a connecting portion 120 that connects the pair of connecting portions 110. A leg portion 130 that is inserted into an opening 610 formed in the substrate 600 is provided on the portion 110 in a protruding manner.

The board connector 100 is formed by bending a conductive metal plate. First, the connecting portion 110 is cut 11 from the center of the upper edge toward the lower edge.
1 is formed. The notch 111 has two taper sides 111A that gradually narrow and two taper sides 111A.
It is composed of two groove sides 111B that descend downward from the terminal end portion of A, and is formed in a substantially Y shape as a whole.

The maximum width formed by the two tapered sides 111A is larger than the diameter of the wiring cable 500, and the minimum width formed by the two tapered sides 111A, that is, the two groove sides 11.
The dimension between 1B is set to be substantially the same as the diameter of the conductor 510.

Therefore, the wiring cable 500 is provided in the notch 111.
When press-fitting, the insulating coating 520 is formed at the groove side 111B.
Is broken, but the conductor 510 is not cut, and the conductor 510 comes into contact with the connection portion 110.

Further, a leg portion 130 is provided so as to project from the center of the lower end portion of the connecting portion 110 having such a cutout 111 formed therein. The leg portion 130 is formed in a substantially bifurcated shape in which the outer edge portion 132 is formed in a substantially V shape and a groove 131 is provided in the center.

The maximum width dimension of the leg portion 130 is the leg portion 13
It is set to be slightly larger than the diameter dimension of the opening 610 into which 0 is inserted. Further, the minimum width dimension of the leg portion 130 is
It is set to be slightly smaller than the diameter dimension of the opening 610 into which the leg portion 130 is inserted. Further, from the lower edge portion of the connecting portion 110 to the portion having the maximum width dimension of the leg portion 130, it is set to be slightly larger than the thickness dimension of the board 600 to which the board connector 100 is to be attached.

In this way, the pair of connecting portions 110 having the cuts 111 formed therein and the leg portions 130 projecting from each other are the connecting portions 1
They are connected by 20. That is, the connection unit 110
The connecting portion 120 is provided between the side edges of the. The lower end of the connecting portion 120 is located slightly above the lower end of the connecting portion 110. This is to prevent the connecting portion 120 from coming into contact with the wiring pattern formed on the board 600 even when the board connector 100 is attached to the board 600.

Next, a connecting method using the board connector 100 thus constructed will be described with reference to FIG. First, as shown in FIG. 2B, the leg portion 130 of the board connector 100 is inserted into the opening 610 of the board 600. As described above, the leg portion 130 includes the outer edge portion 132.
Is formed in a substantially V shape and has a groove 13 at the center.
1 is provided and is formed in a substantially bifurcated shape. The minimum width dimension of the leg portion 130 is set to be slightly smaller than the diameter dimension of the opening 610 into which the leg portion 130 is inserted, and from the lower edge portion of the connecting portion 110 to the portion having the maximum width dimension of the leg portion 130. Is set to be slightly larger than the thickness dimension of the board 600 to which the board connector 100 is to be attached. Therefore, when the leg portion 130 is inserted into the opening 610, the tip of the leg portion 130 is attached to the substrate 600 in a state of protruding to the back surface side of the substrate 600.

At the same time when the board connector 100 is attached to the board 600, other electronic parts (not shown) are also provided on the board 60.
Implement 0. Then, the board connector 100 is connected to the wiring pattern at the same time as the electronic component and the like by the dip soldering work.

Next, the wiring cable 500 is connected to the connecting portion 110.
Press into the notch 111. When press-fitting, make a cut 1
The cable 500 is accurately guided to the groove side 111 </ b> B of the cut 111 by the two tapered sides 111 </ b> A of 11.

By press fitting the wiring cable 500 into the notch 111, the insulating coating 520 of the wiring cable 500 is
It is broken by the groove side 111B. However, since the conductor 510 of the wiring cable 500 is only slightly larger than the width dimension of the groove side 111B, it is not cut and is not cut.
1B, and eventually, the contact portion 110 (see FIG. 2C).

A mouse using the board connector 100 as described above will be described with reference to FIG. The mouse 700, which is a type of computer input device, needs to be connected to the computer main body (not shown) by the wiring cable 500, as described in the section of the related art. This wiring cable 500 does not need to use a male connector and a female connector as in the conventional case, if the above-described board connector 100 is used.

That is, the connection of the wiring cable 500 is completed only by attaching the board connector 100 to the board 720 built in the mouse body 710 and press-fitting the wiring cable 500 into the board connector 100.

The mouse described above is merely an application example, and it is needless to say that the mouse can be applied to other electronic devices such as trackballs and joysticks. If it is used in a so-called modem card (PC card having a function of a modem) which is supposed to be built in the computer body, it can be made thinner. In particular, by using a so-called surface mount type described below, it is possible to make the device thinner.

Next, a board connector 200 according to a second embodiment of the present invention will be described with reference to FIG. The board connector 200 according to the second embodiment is
The board connector 100 according to the first embodiment described above;
The shape of the connecting portion 220 is different.

That is, the pair of connecting portions 210 provided with the notches 211 and the leg portions 230 protruding from the connecting portions 210 have the same shapes as those of the board connector 100, but the connecting portion 220. The position and the shape of the are different.

The board connector 2 according to the second embodiment.
The connecting portion 220 of 00 connects not the side edge portion of the connecting portion 210 but the upper edge portion. Therefore, the connecting portion 220 is formed with a groove 221 that is continuous with the cut 211.

The groove 211 is a portion into which the wiring cable 500 fits when the wiring cable 500 is press-fitted. The groove 221 is a pair of tapered sides 2 of the cut 211.
It has the same width dimension as the maximum width dimension of 11A, and is connected to the center of the connecting portion 220 from one connecting portion 210 to the other connecting portion 210.

The connection method using this board connector 200 is the board connector 100 according to the first embodiment.
Since it is the same as the above, the description thereof will be omitted. By doing so, the wiring cable 500 is more accurately guided to the notch 211 by the groove 221.

Next, a board connector 300 according to a third embodiment of the present invention will be described with reference to FIG. The board connector 300 according to the third embodiment is a soldering piece that is connected to the land portion formed in the wiring pattern of the board 600, instead of the legs 130 of the board connector 100 according to the first embodiment. 330 is formed. Other points are the board connector 1 according to the first embodiment.
The same as 00.

The board connector 300 is, so to speak, of a surface mounting type, and is directly mounted on the wiring pattern formed on the surface of the board 600. The soldering piece 330 has a connecting portion 310 provided with a cut 311.
It extends in a direction orthogonal to the outside from the lower end of the.

The board connector 300 connects the wiring cable 500 to the wiring pattern as follows.
That is, the soldering piece 330 is soldered to the land portion at the same time as the reflow soldering work of the electronic component or the like.

Next, a board connector 400 according to a fourth embodiment of the present invention will be described with reference to FIG. The board connector 400 according to the fourth embodiment is of the surface mounting type like the board connector 300, and the soldering piece 430 is provided at a different position from the board connector 300.

That is, in this board connector 400, an inwardly directed soldering piece 430 is formed at the center of the lower side of the connecting portion 420. Other parts, such as the connection part 410 and the cuts 411 provided therein, are similar to those of the board connector 300.

The board connector 4 according to the fourth embodiment.
00 has lower connection strength to the board 600 than the board connector 300 according to the third embodiment, but is suitable for use in a place where connection strength is not so required.
This is because the number of the soldering pieces 430 is one, and the amount of solder required for connection is smaller than that of the board connector 300, so that the cost can be reduced.

[0039]

The board connector according to the present invention is for connecting a wiring cable in which a conductor is covered with an insulating coating, and the insulating coating is broken without cutting the conductor of the wiring cable press-fitted. In addition, it has a pair of connecting portions in which a substantially Y-shaped notch that contacts the conductor is formed, and a connecting portion that connects the pair of connecting portions. Therefore, the conductors of the wiring cable can be connected simply by press-fitting the wiring cable into the notch, so that the number of parts can be reduced as compared with the conventional one using the male connector and the female connector. it can. For this reason, the number of contact points also decreases,
Reliability is also high.

Furthermore, since this board connector is attached to the board by the reflow soldering work similar to other electronic parts, there is an effect that the conventional manual soldering work is unnecessary.

If a leg portion to be inserted into the opening formed in the board is provided in the connecting portion so as to project, the board connector can be temporarily fixed to the board before the soldering work. Simplifies the pre-process.

If a soldering piece connected to the land portion formed on the wiring pattern of the substrate is formed in the connecting portion, it becomes a surface mounting type and can contribute to the thinning of electronic equipment.

Further, a soldering piece connected to a land portion formed on the wiring pattern of the substrate may be formed on the connecting portion connecting the connecting portions. In this case, since only one soldering piece is required, the effect of cost reduction due to the reduction of the amount of solder used is great when the connection strength is not so required.

Further, in the connection method using the board connector according to the present invention, the insulating coating is broken without cutting the conductor of the press-fitted wiring cable, and the substantially Y-shaped contact is made.
A connection method using a board connector having a pair of connecting portions having a V-shaped cut and a connecting portion connecting the pair of connecting portions, wherein the wiring pattern formed on the substrate and the substrate Process for connecting with the connector for wiring and press-fitting the wiring cable formed by covering the conductor with the insulating film in the substantially Y-shaped notch of the connecting portion of the connector for board mounted on the substrate, and press-fitted wiring A step of breaking the insulating coating without cutting the conductor of the cable to bring the board connector and the conductor into conduction. Therefore, it is possible to provide a connection method having high reliability and not causing a cost increase without increasing the number of soldering steps.

[Brief description of drawings]

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

FIG. 2 is a schematic perspective view illustrating a connection method using the board connector according to the first embodiment of the present invention.

FIG. 3 is a schematic exploded perspective view of a mouse using the board connector according to the first embodiment of the present invention.

FIG. 4 is a schematic perspective view of a board connector according to another embodiment of the present invention, in which FIG. 4A is a schematic perspective view of the board connector according to the second embodiment; B) is a schematic perspective view of the board connector according to the third embodiment, and FIG.
FIG. 8 is a schematic perspective view of a board connector according to a fourth embodiment.

FIG. 5 is a schematic exploded perspective view of a mouse using a conventional connector.

[Explanation of symbols]

 100 board connector 110 connecting part 111 notch 120 connecting part 130 leg 500 wiring cable 510 conductor 520 insulation coating 600 board

Claims (5)

[Claims] 1. In a board connector to which a wiring cable having a conductor coated with an insulating coating is connected, the insulating coating is ruptured without cutting the conductor of the wiring cable press-fitted, and the Y-shaped contact is made. A board connector, comprising: a pair of connecting portions having a V-shaped cut and a connecting portion connecting the pair of connecting portions. 2. The board connector according to claim 1, wherein the connecting portion is provided with a leg portion that is inserted into an opening formed in the board. 3. The board connector according to claim 1, wherein the connecting portion is formed with a soldering piece connected to a land portion formed in a wiring pattern of the board. 4. The board according to claim 1, wherein a soldering piece connected to a land portion formed on a wiring pattern of the board is formed at the connecting portion connecting the connecting portions. connector. 5. A substantially Y shape in which the insulating coating is ruptured without cutting the conductor of the press-fitted wiring cable and is in contact with the conductor.
In a connection method using a board connector having a pair of connecting portions having a V-shaped cut and a connecting portion connecting the pair of connecting portions, a wiring pattern formed on the board and the board connector And a soldering step for connecting the wiring board and a wiring cable in which a conductor is covered with an insulating coating is press-fitted into a substantially Y-shaped notch in a connection portion of a board connector attached to a board, and the wiring cable A connecting method using a board connector, comprising a step of breaking the insulating coating without cutting the conductor to bring the board connector and the conductor into conduction.