JPH0625910Y2 - Jig for aligning and mounting board mounted connectors - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention attaches a connector for connecting the rotation of a lead wire and a substrate by soldering to lands that are lined up in an example at substantially equal intervals on the substrate. And a jig for aligning and mounting a board-mounted connector for the purpose.

[Conventional technology]

An example of a conventional board-mounted connector of this type is shown in FIGS. 6 and 7, which will be described below.

In the drawing, A is a receiving body having a through hole 1 formed from one surface to the other surface, and is a conductor such as phosphor bronze, and at least two planes parallel to the through hole 1 are formed, such as a rectangular parallelepiped or a cube. One surface is soldered directly onto the pattern on the printed circuit board.

The insert C shown in FIG. 7 is inserted into the through hole 1 of the receiver A.

This insert C is formed of an elastic plate having conductivity such as a thin plate of phosphor bronze, and is wound in a cylindrical shape as a whole with a slight gap 2 left at the joint, and four shafts including the joint. A notch 3 in the axial direction is formed and is conically narrowed to the depth of the notch 3.

Therefore, the tip of the conical portion 4 is an opening 5.

The diameter of the cylindrical portion 6 of the insert C is 1.2 mm, the length is 2 mm,
Since the inner diameter of the opening 5 is 0.2 mm and the inner diameter of the through hole 1 of the receiving body A is slightly smaller than the diameter of the cylindrical diameter portion 6, when the insert C is inserted into the through hole 1, it does not come off from this, and The outer dimension of the receiver A can be made approximately the same as the chip resistor.

The hole 7 of the insertion pin E is fitted to the tip of the lead wire D connected to the electronic component outside the printed circuit board, and the insertion pin E is attached by crimping.

The insertion pin E is formed with an insertion portion 8 to be inserted into the insertion body C, and an annular groove 9 at a position near the hole portion 7 from the insertion portion 8.

F is a locking plate in which a thin film having conductivity and elasticity such as phosphor bronze and stainless steel is bent in a U shape by two bending portions 10 and 11. One of the bending portions 10 has a spherical protrusion. Surface 12
A concave portion 13 into which the annular groove 9 is inserted is formed in the other bent portion 11.

When the insertion pin E is inserted into the through hole 1 of the receiving body A, the insertion portion 8 penetrates into the opening 5 of the insertion body C and the conical portion 4 does not open. The insertion portion 8 is connected to the through hole 1 via the insertion body C by the elastic force of the opening 2 of the insertion portion 8.

Then, as shown in FIG. 6, the receiving plate A is fitted so that both the bent portions 10 and 11 of the locking plate F are on the end face side of the receiving member A.

Then, the projecting surface 12 of the bent portion 10 is engaged with the through hole 1, and the recess 13 of the bent portion 11 is fitted into the annular groove 9 of the insertion pin E, so that the receiving plate A of the locking plate F is removed. The withdrawal and the withdrawal of the insertion pin E from the through hole 1 are prevented.

Such a board-mounted connector has a board B as shown in FIG.
To mount on the land B _{1 of} the pattern provided above, apply the cream solder on the land B ₁ and place the receiver A of the board-mounted connector on the land B ₁ to apply the cream. The solder is heated to melt it, the positions of the receiver A and the land B ₁ are aligned by the self-alignment effect, and the solder is mounted on the substrate B.

[Problems to be solved by the device]

In such a mounting method, since the receiving body A is approximately the same size as the chip resistor, it is very difficult to place the receiving body A on the lands B ₁ on the substrate B having the same pitch at exactly the same pitch. Since it uses nerves, it was a work that caused a lot of fatigue.

Even if placed correctly, the receiver A floats up due to the melting of the cream solder, and the land B becomes self-aligning.
Although the soldering within ₁ is performed, the pitch and the direction may be changed.

In recent years, a large number of coated lead wires and strip-shaped lead wires obtained by joining the coatings in a strip shape have been used for joining substrates to substrates or other electric component circuits. As a result, the pitch of the land B ₁ also becomes small.

In such a case, if the direction of the receiver A goes wrong, the insertion pin E
There was a drawback that there was a risk of causing contact.

[Purpose of device]

In order to solve the above-mentioned problem of the conventional mounting and mounting of the board mounting connector on the board, the present invention aligns and mounts the board mounting connector on a preliminary mounting jig, and after mounting on the board, mounting is performed. By removing the jig, one board-mounted connector is addressed to one, eliminating the work of using nerves on the land of the board, and soldering the board-mounted connector to the land of the board without changing the direction at exactly the same pitch. An object is to provide a jig for aligning and mounting which can be performed.

[Means for Solving the Problems]

The present invention is intended to achieve the above-mentioned object, and the means is to mount a mounting connector having a flat bottom surface at least in which a hole into which a tip of a lead wire is inserted and fixed is formed on a board with the bottom surface aligned. Is a jig for soldering on the land, the jig pins to be inserted into the holes of the mounting connector are planted in substantially equal pitches, and the jig pins of the mounting connector are arranged toward the jig pin side. The object is achieved by using a jig for aligning and mounting a board-mounted connector having an eave formed to prevent rotation.

[Example of device]

Next, a case where the above-mentioned receiving body A, insert body C, insert pin E, and locking plate F are used as the board mounting connector of the present invention will be described with reference to FIGS.

In the drawing, G is a mounting jig, which is located at a position lower than the bottom surface 20 of the receiving body A to the center of the through hole 1 and at the same pitch as the land B _{1 of the} board B and the same diameter as the insertion pin E. The jig pins 21 are erected forward by the number of the lands B ₁ .

The surface of the mounting jig G on which the jig pins 21 project is
An eaves 23 having a recessed portion 22 which substantially coincides with the end face of the receiver A.
Are formed.

Therefore, as shown in FIG. 1 and FIG.
When the insert C of the receiver A is fitted into the jig pin 21 as if it were inserted into the jig 2, the bottom surface of the receiver A becomes a flat surface, aligned in a line, and the land B ₁ is attached to the mounting jig G _1. The same number of receivers A are attached.

Cream solder is applied onto the land B _{1 of the} board B as usual, and the mounting jig G is placed on the board B so that the receivers A are lined up on the land B _1. At this time, the mounting jig G is placed. The bottom of
It floats from the board B.

Then, the receiver A and the land B ₁ are soldered by heating and melting the cream solder, and the self-alignment effect of the entire receiver is applied to the land B ₁ .

After the soldering is completed, the mounting jig 21 is removed from the receiving body A by removing the mounting pin 21 from the insert body C. The receiving body A is aligned in the direction and pitch of the mounting pins 21. , Soldered.

Therefore, by using a strip-shaped lead wire or the like, even if the interval between the lands B ₁ is narrow, the insertion pin E does not become a defective product such as contact.

Although the insertion body used in the above-described embodiment is provided with the insertion pin E fixed to the tip of the lead wire D, the lead wire D may be directly inserted.

[Effect of device]

As described above, according to the present invention, a large number of board-mounted connectors can be mounted by soldering them on the lands that are aligned with the board at a time. Not only is it unnecessary to align and place the board-mounted connector on the board, but the mounted board-mounted connector will not be displaced or dropped due to vibration or shock of the board.
The mounting work becomes extremely easy.

In addition, the displacement of the mounted board mounted connector is large,
The self-alignment effect on the land is not sufficient, and there is no risk of defective products such as short circuits in the circuit or the lead wires inserted into it, and it is possible to obtain a well-aligned substrate with good alignment. It is possible.

[Brief description of drawings]

FIG. 1 is a front view of a mounting jig according to an embodiment of the present invention with a receiver attached, FIG. 2 is a sectional view of the same, FIG. 3 is a perspective view of the mounting jig, and FIG. 5 and 5 are oblique views of the mounted state, FIG. 6 is a cross-sectional view of the connected state of the board-mounted connector, and FIG. 7 is an exploded oblique view thereof. A ...... receptacle, B ...... substrate, _{B 1} ...... lands, C ...... insert, D ...... lead, E ...... inserting pin, F ...... locking plates,
G ... Mounting jig, 1 ... Through hole, 21 ... Jig pin.

Claims (1)

[Scope of utility model registration request] 1. A jig for soldering a mounting connector, in which at least a bottom surface is flat, in which a hole into which a tip of a lead wire is inserted and fixed is formed, to solder on a land of a board with the bottom surface aligned. Jig pins to be inserted into the holes of the mounting connector are planted at substantially equal pitches, and eaves are formed toward the jig pin side to prevent rotation of the mounting connector. Jig for aligning and mounting board mounted connectors.