JP2602709Y2 - Connector fixing bracket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing fitting for fixing a connector to a printed circuit board used for electronic equipment and the like.

[0002]

2. Description of the Related Art A fixing structure for mounting a connector on a printed circuit board by using a conventional fixing bracket will be described with reference to a perspective view shown in FIG. 4 and a partially sectional front view shown in FIG. That is, as shown in FIG. 4, the connector 2 is fixed to the printed circuit board 1 with the fixing metal 3, and the flange 21 of the connector 2 has a portion in the diameter direction corresponding to the fixing hole 11 of the printed circuit board 1. Mounting hole 22 in which slit portion 23 is formed
Is provided. The fixing bracket 3 is plate-shaped, and has a connector holding head 31 at one end on the upper end side, and is formed in a bifurcated shape from the middle part to the other end on the lower end side. A portion 32 is formed and its fixed leg 3
Substrate hook portion 33 for fixing the printed circuit board is provided on the second end. Further, the connector 2 is provided on both outer sides near the branch portion of the fixed leg portion 32 formed in a forked shape.
Is provided with a press-fitting convex portion 34 which is press-fitted into the slit portion 23. The mounting hole 22 of the connector 2 is circular and the slit portion 23 is formed on the circumference thereof. The fixing is performed by the fixing bracket 3 and the fixing by bolts and nuts (not shown) is used. This is because it can be selected depending on the location or the like. In addition, a fitting portion 24 to which another connector (female or male) (not shown) or a printed circuit board is connected is provided above the connector 2.

[0005] Then, the fixing bracket 3 is inserted from above the connector 2 into the slit portion 23 of the mounting hole 22 and fixed. The fixing method is as shown in FIG. 3 is temporarily inserted until the press-fitting convex portion 34 can be manually inserted into the slit portion 23 of the connector 2 and then press-fitted with a press-fitting jig shown in FIG. That is, the fixture 3 is temporarily inserted into the connector 2 and is placed on the receiving table 41 of the press-fitting jig, and the press-fitting portion 421 of the punch 42 is used to fix the head 31 of the fixture 3 as shown in FIG. The press-fit projection 34 is moved to a position where the lower portion contacts the upper surface of the connector 2.
Into the slit 23 of the connector 2. (FIG. 5
(B) shows a state where the printed circuit board 1 is fixed after the fixing fitting 3 is pressed into the connector 2 as described later. )
In this press-fitting process, since both outer portions 35 of the fixing leg portions 32 of the fixing fitting 3 engage with the inner wall surfaces of the slits 23 of the connector 2, the fixing fitting 3 is pressed into the connector 2 straight. .

In this case, the punch 42 of the press-fitting jig is provided with a relief portion 422 of the fitting portion 24 of the connector 2. The receiving base 41 is provided with an escape groove 411 of the hook portion 33 of the fixture 3 when the fixture 3 is press-fitted into the connector 2 so as to match the angle of inclination of the fixture 3 in the horizontal direction. FIG. 6B shows the arrangement of the escape grooves 411. As described above, after the fixing fitting 3 is press-fitted and inserted into the connector 2, as shown in FIG. 5B, the board hooking portion 33 of the fixing fitting 3 is fitted into the fixing hole 11 of the printed circuit board 1, and And the printed circuit board 1. In addition, since the hook part 33 is provided at the end of the U-shaped fixing leg part 32 which is elastically deformed inward and outward, it can be easily fitted into the fixing hole 11 of the printed circuit board.

[0005]

[Problem to be solved by the invention]
Mounting hole 22 of connector 2 and fixing hole 11 of printed circuit board 1
When the inner diameters of the fixing holes 3 substantially coincide with each other, there is no particular problem in the mounting structure using the fixing bracket 3 as described above. Some have an inner diameter. In this case, when the inner diameter of the fixing hole 11 of the printed circuit board 1 is larger than the inner diameter of the mounting hole 22 of the connector 2, it is necessary to change the mounting hole 22 of the connector 2 and the fixing fitting 3 so as to match the size. . However, when the inner diameter of the fixing hole 11 of the printed circuit board 1 is smaller than the inner diameter of the mounting hole 22 of the connector 2, FIG.
As shown in the partial cross-sectional front view of FIG. 3, the board catching portion 33 of the fixing bracket 3 can be dealt with only by changing the fixing bracket 3 so as to fit the small fixing hole 11, but the following problem is caused. There is.

That is, the fixing fitting 3 is connected to the mounting hole 2 of the connector 2.
In the case of press-fitting into the connector 2, since both outer portions 35 of the fixing leg 32 of the fixing bracket 3 cannot engage with the inner wall surface of the slit 23 of the connector 2, as shown in FIG. At the time of temporary insertion, there is a problem that it is difficult to press-fit straight. In this state, since the press-fitting protrusions 34 of the fixture 3 are engaged only above the slits 23 of the connector 2, the side view taken along the line XX of FIG. 7A shown in FIG. As is clear from the cross-sectional view, the fixing leg 32 can swing in the left-right direction (in the side view), so that it takes a lot of time to press the fixing metal 3 straight into the slit 23, and the fixing metal 3 is hardly pressed. If the press-fit is tilted,
There is a problem that the hook portion 33 of the fixture 3 is damaged by the receiving base 41 of the press-fitting jig, and the slit portion 23 of the connector 2 is also damaged, so that both need to be replaced.
In order to prevent such a problem from occurring, the inner diameter of the fixing hole 11 of the printed circuit board 1 is
Similarly to the case where the inner diameter of the connector 2 is larger than the inner diameter of the connector, there is a method of changing the connector 2 and the fixing fitting 3 in accordance with the inner diameter of the fixing hole 11 of the printed circuit board 1. The problem of complicated article management due to diversification also arises. According to the present invention, when the inner diameter of the fixing hole 11 of the printed circuit board 1 is smaller than the inner diameter of the mounting hole 22 of the connector 2, the connector can be used as it is,
It is another object of the present invention to provide a fixture that can be accurately press-fitted using a conventional press-fitting jig.

[0007] The fixing bracket of the present invention is a connector flange.
Into the slit formed in the mounting hole provided in the
And fixing the printed circuit board on which the connector is installed.
The connector is fixed to the printed circuit board by locking the hole.
In the mounting bracket for the plate-shaped connector, a holding head for the connector is provided at one end, and a bifurcated fixed leg is formed from the intermediate portion to the other end , and at the end of the fixed leg. fixed engaged with the lower edge of the fixing hole of the printed circuit board
To have an outwardly inclined surface is hook portion formed, pressed convex portion of the scan <br/> slit portion of the connector on both outer sides of the lower front Symbol connector suppressed for the head is provided, and Of the fixed leg
Guide projections are provided at portions on both sides of the connector that engage with the slits.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a fixing device according to the present invention. FIG. FIG. 1A shows that the inner diameter of the fixing hole 11 of the printed circuit board 3 is
FIG. 4 is a front view of a partial cross section in a state where the fixing fitting 5 according to the present invention is temporarily inserted into the mounting hole 22 of the connector 2 at an inner diameter smaller than the inner diameter of the connector. The fixing fitting 5 is provided with a guide protrusion 56 between the press-fit protrusions 54 on both outer sides of the fixing leg 52 and the hook 53 on the printed circuit board. The guide projection 56 is provided so as to engage with the slit 23 of the connector 2, and the distal end 561 is fitted in the slit 23.

Therefore, the fixing fitting 5 is provided in the position shown in FIG.
As is clear from the side cross-sectional view taken along the line XX of (a), since the lower end of the guide projection 56 contacts the inner wall of the slit 23, the plate thickness of the fixing bracket 5 and the slit width of the slit 23 are provided. Although it is slightly inclined in relation to
Relief groove 4 of hook portion 53 of fixture 5 provided in
Since the fixing fitting 5 is not inclined so as to be disengaged from the connector 11, the fixing fitting 5 is not damaged, and the press-fitting convex portion 54 is appropriately press-fitted into the slit 23 of the connector 2 and does not damage the connector 2. The position at which the guide projection 56 is formed is shown in FIG.
As shown in (b), it is sufficient that the fitting 5 is in the range of the slit 23 of the connector 2 in a state where the fitting 5 is pressed into the connector 2, but is provided so as to be located below the slit 23. it is the slope way during false insertion preferably no less <br/> physician.

As the shape of the guide projection 56, various shapes other than the trapezoid shown in FIG. 1 can be applied as shown in FIGS. That is, FIG. 3A is a triangle, and FIG.
Is a semicircular shape, and FIG. 3C is a rectangular guide convex portion. As long as this guide convex portion is securely engaged with the slit portion 23 of the connector 2, the degree of engagement is not so important even if the degree of engagement is small or large as long as the press-fit state is not achieved. In general, the inner diameter of the fixing portion 11 of the printed circuit board 1 is smaller than that of a standard one, and the fixing portion 1 is smaller with the demand for downsizing of electronic devices and the like.
The internal diameter of the printed circuit board 1 tends to be small, and it is possible to use a standard connector for various printed circuit boards 1 by replacing only the fixing bracket.

[0011]

[Effect of the Invention] The present invention has been described in detail above.
Conventionally, by reducing the inner diameter of the fixing portion 11 of the printed circuit board 1, both the corresponding connector and the fixing bracket are exchanged, or only the fixing bracket is exchanged, so that the press-fitting work is carried out carefully by taking a lot of man-hours. The problem that had been described above was solved by using the fixing bracket according to the present invention.
Even if the inner diameter of the fixing portion 11 is reduced, the standard connector can be used widely, and the necessity of preparing various types of connectors eliminates the necessity of manufacturing the connector mold. At the same time, it was possible to reduce article management costs by reducing the number of types of connectors. Further, when the fixing bracket is inserted into the mounting slit provided with the mounting hole 22, the guide convex portion is guided by the slit 23, and the press-fit convex portion is automatically positioned in the direction of the slit.
Furthermore, the press-fitting work can use the conventional press-fitting jig,
In addition, the present invention has an extremely useful effect in practical use in fixing the connector to the printed circuit board, for example, without lowering the yield.

[Brief description of the drawings]

FIG. 1 is a front view of a partial cross section in a state where a fixing bracket of the present invention is used.

FIG. 2 is a side view of a cross section taken along line XX in a use state shown in FIG.

FIG. 3 is a partially enlarged view of a main part of the fixing bracket of the present invention.

FIG. 4 is a perspective view illustrating an example of use of a conventional fixture.

FIG. 5 is a front view of a partial cross section in a state of using a conventional fixing bracket.

FIG. 6 is an explanatory view of a press-fitting method of a fixing fitting by a press-fitting jig.

FIG. 7 is a front view of a partial cross section in a use state illustrating a problem of a conventional fixing bracket.

8 is a side view of a cross section taken along line XX in the use state shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printed circuit board 2 Connector 21 Connector flange 22 Connector mounting hole 23 Connector slit part 24 Connector fitting part 3,5 Fixing bracket 31,51 Head of fixing bracket 32,52 Fixing leg of fixing bracket 33,53 Hook portions of fixing fittings 34, 54 Press-fitting projections of fixing fittings 56 Guide projections of fixing fittings 41 Press-fitting jig pedestals 42 Press-fitting jig punches

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/73 H01R 9/09 H01R 13/46 304

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting hole provided in a flange of a connector.
Into the slit formed in the
Is locked in the fixing hole of the printed circuit board on which the
Of a plate-like connector that secures the connector to the printed circuit board
In urging metal fitting, and having a suppressed for the head of the connector at one end, forked fixing leg is formed toward the middle portion to the other portion, the fixed of the printed circuit board to an end of the fixed leg Outwardly sloping surface that engages and fixes the lower edge of the hole
There has catching portions formed, pressed convex portion of the slit portion of the connector is provided on both outer sides of the lower front Symbol connector suppressed for the head, and the both outer sides of the fixing leg connectors
A connector fixing bracket , wherein a guide projection is provided in a portion engaging with a slit portion of the connector.