JP3194559B2 - Connector fixture and connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector fixing device and a connector, and more particularly to a connector fixing device and a connector for fixing a connector to a printed circuit board.

In recent years, with the improvement in reliability of connectors,
For fixing to a printed circuit board, not only soldering of connection pins, but also a dedicated fixture called a board lock has been used.

[0003] The board lock has one end fixed to the connector and the other end fixed to the printed circuit board, and connects the connector and the printed circuit board.

[0004] Such a board lock is becoming a standard specification from an option, and cost reduction is required.

[0005]

2. Description of the Related Art FIG. 6 is an exploded perspective view of a conventional example.
In the figure, reference numeral 41 denotes a connector. The connector 41 includes a mold part 42, a shield part 43, and a board lock 44.

[0006] The mold portion 42 includes a base portion 42a and a connection portion 42.
b, and the connecting portion 42b is formed to protrude from the base 42a.

A connection pin 47 is buried from the connection portion 42b to the base portion 42a. One end of the connection pin 47 is exposed inside a connection hole 42c formed in the connection portion 42b, and the other end extends outside from the back surface. ing.

The externally extending portions of the connection pins 47 are inserted into through holes 45 a of the printed circuit board 45 and are soldered to the printed circuit board 45.

Further, a shield portion 43 is engaged with the connection portion 42b at a portion other than the surface on which the connection hole 42c of the connection portion 42b is formed, thereby preventing intrusion of noise.

Screw holes 4 for attaching the connector 1 to the front panel 48 are formed on the left and right sides of the connection portion 42b of the base portion 42a.
2d is formed. The shield part 43 has a screw hole 4
A hole 43a is formed corresponding to 2d.

The board lock 44 includes an engaging portion 44a for engaging with the mold portion 42a and a claw portion 44b for engaging with the printed board 45. The engaging portion 44a is provided in a screw hole 42d of the mold portion 42. Hole 4 to correspond
4c is formed, bent so as to go around the end of the mold part 42, formed so as to sandwich the mold part 42, and the claw part 44b is erected on the back surface of the mold part 42.

At this time, the board lock 44 is formed by forming a metal plate into a predetermined shape by press punching and then bending the metal plate.

The connector 41 is mounted on the front panel 48 such that the connection portion 42c projects from a mounting hole 48a formed in the front panel 48.
8 is screwed into the screw hole 42d of the mold part 42 through the hole part 48b of the shield part 43, the hole part 43a of the shield part 43, and the hole part 44c of the board lock 44.

The printed circuit board 45 is mounted on the board lock 4.
The tabs 44b are fixed to the connector 41 by press-fitting the tabs 44b into mounting holes 45b provided corresponding to the tabs 44b of No.4.

The connecting connector 46 has a concave portion (not shown) corresponding to the connecting portion 42b of the connector 41, and a connecting pin (not shown) is implanted in the concave portion corresponding to the connecting hole 42c of the connector 41. The connection is made by engaging the concave portion of the connection connector 46 with the connection portion 42b of the connector 41.

A screw hole 49a is formed in a mounting screw 49 for mounting the connector 46 to the front panel 48, and a fixing screw 50 is provided in the connector 46 corresponding to the connection mounting screw 49. 50 mounting screws 4
9 is screwed into the screw hole 49a.
6 can be fixed to the connector 41 so that the connection between them can be reliably performed.

[0017]

However, since the conventional board lock 44 needs to be bent after press-punching a metal plate, there are many working steps and it is difficult to reduce the cost. there were.

An object of the present invention is to provide a connector fixture and a connector which have been made in view of the above points, are easy to manufacture, and can reduce the cost.

[0019]

According to a first aspect of the present invention, a connector fixing device for fixing a connector body to a printed circuit board and a front panel is provided at one end and engages with a hole formed in the printed circuit board. A claw portion for fixing the connector to the printed circuit board; an external screw portion provided at the other end and provided at one end fixed to the connector body and screwed into a screw hole formed in the connector body; An inner screw portion formed at a central portion of the screw portion and into which a fixing screw for fixing the connector main body to the front panel is screwed, and pressing the claw portion, the outer screw portion, and the inner screw portion with a plate material. It is formed integrally by punching.

According to a second aspect of the present invention, the claw portion is formed longer than a connection pin for connecting the connector body and the printed board.

According to a third aspect of the present invention, the connector includes the connector main body 1 and the connector fixing members 7, 31 in which the external thread portion 27 is screwed into the screw hole 12 of the connector main body 1 and fixed to the connector main body 1. And

[0022]

According to the first aspect, the printed circuit board is fixed by the claws, the connector is fixed to the connector main body by the external thread, and the connector main body is fixed to the front panel by the fixing screw by the internal screw. It is possible to reduce the number of parts and bend the sheet material by press-punching because the above-mentioned claw, external thread, and internal thread are integrally formed by stamping the sheet material. Etc. are required and the processing is easy, so that the cost can be reduced.

According to the second aspect, the claw portion for fixing the printed circuit board to the connector main body is formed longer than the connection pin for connecting the connector main body to the printed circuit board. First, the hook engages with the hole of the printed circuit board, and the position of the printed circuit board with respect to the connector body is positioned. The printed circuit board engages with the connector body while being guided by the nail, so positioning of connection pins is unnecessary. And the assemblability can be improved.

According to the third aspect, since the connector fixing member is fixed to the connector main body, the connector can be easily mounted on the front panel and the printed circuit board. Further, since the connector fixture is formed by press punching, the connector can be provided at low cost.

[0025]

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 is a connector, 2 is a printed circuit board to which the connector 1 is connected, 3 is a front panel on which the connector 1 is mounted, and 4 is a connection connector connected to the connector 1.

The connector 1 has a molded part 5 forming the main body of the connector 1, a shield part 6 for shielding the molded part 5, a board lock 7 for fixing the printed circuit board 2 to the molded part 5, and fixing the connector 1 to the front panel 3. Along with
It comprises a fixing screw 8 for fixing the connector 4.

The mold 5 is provided with a base 9 and a projection 10 protruding from the base 9, and the connection 10 is engaged with the connector 4.
Consisting of The connection pins 11 extend from the base 9 to the connection portion 10.
Are linearly embedded, one end of the connection pin 11 is exposed inside a connection hole 10a formed in the connection portion 10, and connection with a connection pin inserted into the connection hole is performed. The base 9 extends from the surface of the base 9 opposite to the surface on which the connecting portion 10 is formed.

Screw holes 12 are formed at both ends of the base 9, and the board lock 7 is screwed into the screw holes 12.
Fixed. Also, the claw portion 1 is provided on the upper and lower surfaces of the base 9.
The shield part 6 is engaged with the claw part 13, and the shield part 6 is fixed to the mold part 5.

The shield portion 6 is made of a conductive material such as a metal, for example, and covers the periphery of the connection portion 10 of the mold portion 5 and the upper and lower front surfaces of the mold portion 5 to prevent noise from entering the connector 1. . Holes 14 are formed on the upper and lower surfaces of the shield 6 to engage with the claws 13 formed on the upper and lower surfaces of the mold 5, and the shield 6 engages the shield 6 with the mold 5. Claw part 1 of mold part 6
3 is held by engaging the hole 14 of the shield 6 with the hole 3.

Holes 15 are formed at the left and right ends of the front surface of the shield 6, and the holes 15 are formed in the screw holes 12 of the mold 6.
It is provided corresponding to. The fixing screw 8 penetrates the hole 15, and the fixing screw 8 is introduced into the screw hole 12.

On the printed circuit board 2, an electronic component for processing a signal from the connector 1 on which a connection pattern for connecting the connector 1 is formed is mounted, and a through hole 16 for connecting to the connector 1 is provided. A fixing hole 17 for fixing the fixing hole is formed.

FIG. 2 shows a configuration diagram of a board lock according to an embodiment of the present invention. The board lock 7 of the present invention is formed by stamping a metal plate by press working or the like, and the screw portion 24, the brim portion 25, and the claw portion 26 are formed in a flat plate shape.

The screw portion 24 includes the outer screw portion 27 and the inner screw portion 2.
The outer screw portion 27 is formed with a screw thread to be screwed to the mold portion 12, and the inner screw portion 28 is formed with a screw thread to be screwed to the fixing screw 8.

The board lock 7 is fixed to the connector 1 by screwing the external screw portion 27 into the screw hole 12 of the mold portion 5. At this time, screwing into the screw hole 12 is regulated by the flange portion 25, and the external screw portion 27 is inserted into the screw hole 12 and fixed.

The claw portion 26 has a notch 26a at the center, and a protrusion 26b is formed outside the tip. The notch 26a bends the claws 26 in the directions of arrows A and B,
The attachment and detachment of the printed circuit board 2 is facilitated.

The protruding portion 26 slides on the inner peripheral portion of the fixing hole 17 of the printed circuit board 2 to give a frictional force to the printed circuit board 2 and hold the printed circuit board 2.

Here, returning to FIG. 1, the description will be continued.

The connector 1 is mounted on the front panel 3 so that the connection portion 10 protrudes from a mounting hole 18 formed in the front panel 3, and the fixing screw 8 is attached to the hole 18 of the front panel 3 and the shield portion 6. It is fixed by screwing into the hole 15 and the screw hole 28 in the board lock 7.

The connector 4 is a connector 10 of the connector 1.
The connection pin (not shown) is implanted in the recess corresponding to the connection hole 10a of the connector. A connection is made by engaging part 10.

The mounting screw 8 for mounting the connector 10 to the front panel 3 is provided with a screw hole 8a, and the connector 4 is provided with a fixing screw 20 corresponding to the connecting mounting screw 8. 20 is the screw hole 8a of the mounting screw 8
The connection connector 4 can be fixed to the connector 1 by being screwed into the connector 1, so that the connection between the two can be reliably performed.

FIG. 3 is a sectional view of a main part of an embodiment of the present invention. The board lock 7 has an external thread 27 screwed into the screw hole 12 formed in the mold part 9 of the connector 1 and is fixed. The nail part 26 is press-fitted into the fixing hole 17 of the printed board 2 to fix the printed board 2. I do. A fixing screw 8 is screwed into the inner thread portion 28 of the board lock 7 with the front panel 3 interposed therebetween, and fixes the connector 1 to the front panel 3. At this time, since the fixing screw 8 is screwed into the inner screw portion 28, the screw portion 24 is slightly pressed outward, and the screwing between the board lock 7 and the mold portion 5 is strengthened, and a strong fixing is performed. Power is gained.

As described above, according to this embodiment, the printed circuit board 2 can be fixed to the connector 1 by the board lock 7 and the connector 1 can be fixed to the front panel 3, so that the number of components can be reduced and the board lock can be reduced. Since the plate 7 is formed by press-punching a plate material, it can be formed at low cost without bending or the like.

Therefore, it is possible to greatly reduce the cost.

FIG. 4 is a block diagram showing a modified example of the board lock according to one embodiment of the present invention, and FIG. 2, the same components as those of the board lock of FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted.

The board lock 31 of this modification is provided with a hook 32
Is different from the board lock 7 shown in FIG. The claw portion 32 of the board lock is set so that the length of the tip portion engaging with the engagement hole of the printed board is longer than the length of the connection pin 11 extending from the connector 1.

When the printed circuit board 2 is fixed to the connector 1, first, the tip of the claw portion of the board lock is inserted into the engagement hole of the printed circuit board 2 as shown in FIG.
As described above, the printed board 2 and the connector 1 are positioned, and the connection pins 11 of the connector 1 are guided to the through holes of the printed board 2. Therefore, the printed circuit board 2 can be easily engaged with the connector 1, and the assemblability can be improved.

[0047]

As described above, according to the present invention, the printed circuit board is fixed by the claws, the connector is fixed to the connector main body by the outer screw part, and the fixing screw is fixed by the inner screw part. The panel can be fixed to the panel, and the above-mentioned claw, external thread, and internal thread are integrally formed by press-punching the plate material. Bending and the like are not required by the punching process, and the process is easy, so that it has features such as cost reduction.

According to the second aspect, the claw portion for fixing the printed circuit board to the connector body is formed longer than the connection pin for connecting the connector body and the printed circuit board. First, the hook engages with the hole of the printed circuit board, and the position of the printed circuit board with respect to the connector body is positioned. The printed circuit board engages with the connector body while being guided by the nail, so positioning of connection pins is unnecessary. And has features such as improvement in assemblability.

According to the third aspect, since the connector fixing member is fixed to the connector body, the connector can be easily attached to the front panel and the printed circuit board can be easily attached. Further, since the connector fixture is formed by press punching, it has features such as being able to provide a connector at low cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of one embodiment of the present invention.

FIG. 2 is a configuration diagram of a board lock according to an embodiment of the present invention.

FIG. 3 is a sectional view of a main part of one embodiment of the present invention.

FIG. 4 is a configuration diagram of a modification of the board lock according to one embodiment of the present invention.

FIG. 5 is an operation explanatory diagram of a modified example of the board lock according to one embodiment of the present invention.

FIG. 6 is a configuration diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 2 Printed circuit board 3 Front panel 4 Connector 5 Mold part 6 Shield part 7 Board lock 8 Mounting screw 11 Connection pin 12 Screw hole 16 Through hole 17 Fixing hole

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-227592 (JP, A) JP-A-5-15367 (JP, U) JP-A-4-55775 (JP, U) JP-A-3-15759 24284 (JP, U) Japanese Utility Model Showa 61-171175 (JP, U) Japanese Utility Model Showa 50-154844 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/74 H01R 12 / 04 H01R 12/22

Claims (3)

(57) [Claims] 1. A connector fixture for fixing a connector body (1) to a printed circuit board (2) and a front panel (3), comprising a hole (17) formed at one end and formed in the printed circuit board (2). Engaging the connector with the printed circuit board (2)
A claw portion (26) fixed to the connector body, provided at the other end, provided at one end fixed to the connector body (1), and screwed into a screw hole (12) formed in the connector body (1). An outer screw portion (27); and an inner screw portion formed at a central portion of the outer screw portion (27) and into which a fixing screw (8) for fixing the connector body (1) to the front panel (3) is screwed. (28), wherein the claw portion (26), the outer screw portion (27), and the inner screw portion (28) are integrally formed by press-punching a plate material. Utensils. 2. The connector according to claim 1, wherein the claw portion is formed to be longer than a connection pin for connecting the connector body to the printed circuit board.
The connector fixture described. 3. The connector body (1), and the external thread portion (27) is screwed into the screw hole (12) of the connector body (1) and fixed to the connector body (1). A connector comprising the connector fixture (7, 31) according to claim 1 or 2.