JPH08106969A - Installing device of connector for circuit board - Google Patents

Abstract

PURPOSE: To easily install a connector on a circuit board by placing the connector in a specific position of a surface part of the circuit board, and inserting/ engaging an installing tool from above into/with an installing hole in which both are superposed on each other. CONSTITUTION: When a connector 12 is installed on a circuit board 11, the connector 12 is placed in a specific position of a surface part of the board 11, and from claw parts 20 of an installing tool 18, leg parts 19 are inserted from above into an installing hole 13 of the board 11 from a hole 16 to be inserted of the connector 12. Therefore, the claw parts 20 engage with the edge part of the hole 13 on the reverse of the board 11 by passing through the hole 16 and the hole 13 in order while bending the leg parts 19. A head part 21 of the installing tool 18 also engages with an installing seat 17, and the connector 12 is sandwiched by and fixed to the board 11 by the claw parts 20 and this. Therefore, this can easily cope with a difference in a plate thickness of the circuit board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit board connector mounting device for mounting a connector on a circuit board.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional connector 1 for a circuit board is mounted by screwing a tapping screw 3 from the back side of a circuit board 2 with a driver 4.

[0003]

However, in the above-mentioned prior art, after the connector 1 is placed at a fixed position on the surface of the circuit board 2, the circuit board 2 is inverted together with the connector 1 so that the tapping screw from the back side can be reversed. It was necessary to screw in 3 and tightened, and the work was troublesome.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to easily mount a connector on a circuit board and to easily cope with a difference in the board thickness of the circuit board. An object of the present invention is to provide a mounting device for a circuit board connector to be obtained.

[0005]

To achieve the above object, in a circuit board connector mounting device of the present invention, a mounting hole is formed in the circuit board, and the connector has a mounting hole and the mounting hole. A mounting seat that forms a pair at the edge portion and gradually increases in height in the circumferential direction is provided, and a flexible leg portion that is inserted from the mounted hole of the connector into the mounting hole of the circuit board is provided. , A claw portion at the tip of the leg portion that engages with the edge of the mounting hole on the back surface of the circuit board, and at the base end portion of the leg portion that engages with the mounting seat of the connector and along the mounting seat It is characterized in that it is provided with a fixture having a rotatable head.

[0006]

According to the above means, after the connector is placed at a fixed position on the surface of the circuit board, the claws of the fittings and the legs are inserted from above into the mounting holes of the connector through the mounting holes of the connector. Then, the claw portion may be engaged with the edge portion of the mounting hole on the back surface of the circuit board. Also, when the board thickness of the circuit board becomes smaller,
The head of the fixture may be rotated along the mounting seat until it is stopped.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, the circuit board 1 shown in FIG.
Reference numeral 1 denotes, for example, a printed wiring board, which is not shown in detail, but as is well known, has a wiring pattern on the surface (upper surface in the drawing), and mounts necessary electronic components. Further, at the position where the connector 12 of the circuit board 11 is mounted, two (only one is shown) mounting holes 13 are provided.
Is formed.

On the other hand, the connector 12 is a female connector, and a male terminal (not shown) of a male connector is inserted into and connected to the inside of a plastic housing 14 (also not shown). )have. Further, mounting portions 15 are formed on both left and right sides of the housing 14 of the connector 12, and circular mounting holes 16 are formed in the mounting portions 15, respectively.
In detail, as shown in FIG. 2, at the edge of each of the mounting holes 16, two mounting seats 17 are provided, each of which forms a pair and whose height gradually increases continuously in the circumferential direction (clockwise in this case). Is formed.

Further, the attachment 18 is made of a metal plate which is a heat resistant material, and two flexible legs 19 and the legs 1.
9 is integrally formed with a tapered claw portion 20 extending outwards at each tip portion, and a head portion 21 having a semicircular shape extending outwards in common at the base end portions of the leg portions 19. And the same number as the mounting holes 16 of the connector 12 (in this case,
2) exist.

By the way, in the case of the configuration as described above,
When attaching the connector 12 to the circuit board 11,
First, the connector 12 is placed at a fixed position on the surface portion of the circuit board 11, and then, from above, the claw portion 20 to the leg portion 19 of the attachment 18 are changed from the attachment hole 16 of the connector 12 to the attachment hole 13 of the circuit board 11. Insert it. Then, the claw portion 20 becomes the leg portion 19
While being flexed, it is released when it reaches the back surface of the circuit board 11 through the mounting hole 16 and the mounting hole 13 in order,
The restoring force of the legs 19 engages the edge of the mounting hole 13. FIG.
Shows the state at this time, and the head 21 is also attached to the mounting seat 17
The connector 12 (mounting portion 15) is pinched and fixed to the circuit board 11 by engaging with the claw portion 20.

Further, in FIG. 3, the thickness of the circuit board 11 is large,
The total thickness of the circuit board 11 and the mounting portion 15 of the connector 12 is the same as the length of the leg portion 19 from the head portion 21 to the claw portion 20 of the mounting tool 18, or slightly larger than the length of the leg portion 19. It shows the situation when there is, the circuit board 11
When the plate thickness becomes small, the claw portion 20 is engaged with the edge portion of the mounting hole 1 on the rear surface of the circuit board 11 as described above, and then the head portion 21 of the mounting tool 18 is rotated clockwise along the mounting seat 17. Rotate to. Then, the head portion 21 climbs up the mounting seat 17 along the slope thereof, and as shown in FIG. 4, the length of the leg portion 19 from the head portion 21 to the claw portion 20 is equal to the thickness of the circuit board 11 of the connector 1.
The thickness of the second mounting portion 15 is added, and the height of the mounting seat 17 is added to the mounting seat 17, and the connector seat 12 is pressed against the mounting seat 17 to be stopped. The substrate 11 is sandwiched and fixed.

On the back surface of the circuit board 11, the solder connection of the lead of the mounting component to the land of the wiring pattern is made by dipping in the molten solder bath, and at the same time, the claw portion 20 of the fixture 18 is also formed. By soaking it in the molten solder bath, it is possible to more reliably prevent the fixture 18 from returning and to secure the connector 12 more securely. or,
For this reason, it is preferable to use a heat-resistant material capable of withstanding the heat of the molten solder for the fixture 18, but a heat-resistant resin or the like may be used instead of metal.

As described above, in this structure, the connector 1
2 is placed in a fixed position on the surface portion of the circuit board 11, and then the claw portion 20 of the fixture 18 to the leg portion 19 is attached to the connector 12 from above.
Of the mounting hole 13 of the circuit board 11 is inserted into the mounting hole 13 of the circuit board 11, and the claw portion 20 is engaged with the edge portion of the mounting hole 13 on the back surface of the circuit board 11. 21
The connector 12 can be easily attached to the circuit board 11 only by rotating the mounting seat 17 until it is stopped. The conventional circuit board as well as the connector can be inverted and the tapping from the back side can be performed. There is no need for troublesome work such as screw tightening. Moreover, it is possible to easily cope with the difference in the plate thickness of the circuit board 11, and as a whole, the attachability of the connector 12 can be greatly improved.

In contrast to the above, FIG. 5 shows a second embodiment of the present invention. Instead of the above-mentioned mounting seat 17, the height of the edge of the mounting hole 16 is gradually stepped in the circumferential direction. The mounting seat 22 is formed on the mounting portion 15 of the connector 12, and even in this case, it is possible to easily cope with the difference in the plate thickness of the circuit board 11 as described above. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and may be appropriately modified and implemented without departing from the scope of the invention.

[0015]

As is apparent from the above description, the circuit board connector mounting device of the present invention is provided with a mounting hole in the circuit board, and the connector is provided with a mounting hole and an edge portion of the mounting hole. And a mounting seat that gradually increases in height in the circumferential direction.
A claw that has a flexible leg portion that is inserted into the attachment hole of the circuit board from the attachment hole of the connector and that engages with the edge of the attachment hole on the back surface of the circuit board at the tip of the leg portion. And a fitting having a head that engages with a mounting seat of the connector and is rotatable along the mounting seat at the base end of the leg and the leg.
The connector can be easily attached to the circuit board, and the difference in the board thickness of the circuit board can be easily dealt with, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a first embodiment of the present invention before assembly.

FIG. 2 is an enlarged perspective view of a mounting seat portion.

FIG. 3 is a vertical cross-sectional view of a main portion after assembly.

FIG. 4 is a vertical cross-sectional view of a main portion with different assembled states.

FIG. 5 is a view corresponding to FIG. 2 showing a second embodiment of the present invention.

FIG. 6 is a perspective view showing a state where a main part of the conventional example is being assembled.

[Explanation of symbols]

11 is a circuit board, 12 is a connector, 13 is a mounting hole, 16
Is a mounting hole, 17 is a mounting seat, 18 is a mounting tool, 19 is a leg, 20 is a claw, 21 is a head, and 22 is a mounting seat.

Claims (1)

[Claims] 1. A connector for mounting a connector on a circuit board, wherein a mounting hole provided in the circuit board, a mounting hole provided in the connector and an edge portion of the mounting hole are paired and gradually formed. A mounting seat provided so as to increase in height in the circumferential direction, a flexible leg portion which is inserted from a mounting hole of the connector into a mounting hole of the circuit board, and a tip portion of the leg portion, A claw portion that engages with an edge portion of a mounting hole on the back surface of the circuit board, and a fixture having a base portion of the leg portion that engages with a mounting seat of the connector and has a head that can rotate along the mounting seat. An apparatus for mounting a circuit board connector, comprising: