JPH0447997Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to a printed board unit having a plug-in connection type printed board.

(2) Prior art and problems The conventional printed board unit according to the present invention
This will be explained with reference to the side view of FIG. 6 and the rear view of FIG. 7.

The printed board unit 1 is formed by inserting a printed board 3 into a box 2 in parallel. A front plate 4 is attached to the front of the printed board unit 1, and the printed board 3 on which predetermined circuit components are mounted is attached to the box 2.
It is supported by the upper and lower two edges of.

The printed board unit 1 is inserted into a shelf (not shown) to form electrical connections between circuit components, and is provided with a connector 5 for this purpose. The connector 5 consists of a patterned contact terminal on a portion protruding from the back surface of the printed board unit 1.

As mentioned above, the printed board 3 is located at the top and bottom of the box body 2.
Since it is supported only at the edges, relatively large printed boards may bend due to the weight of circuit components mounted on them. In such a case, the linearity of the connector 5 when viewed from the back side of the printed board unit is lost, making it difficult to match the shelf to the connector.

Therefore, the fixing plate 6 is placed on the back of the box body 2,
The top and bottom are fixed with screws, and an L-shaped protruding piece 7 is bent in the middle, and the printed board 3 is set so that it is in contact with the protruding piece 7 in a straight line. By fixing the board 3 with screws 8, the printed board 3 is prevented from being bent or warped.

Therefore, the mounting of components or the formation of circuit patterns on the printed circuit board 3 may be restricted in the area where the protruding piece 7 contacts. In addition, since it is necessary to screw the protruding piece 7 and the printed board 3 from the vertical direction of the box body 2, it is difficult to insert and remove the printed board from the direction of the front panel of the unit. There was an issue that required special consideration.

(3) Purpose of the invention The present invention was devised in view of the above-mentioned conventional problems. By fixing to the printed board without directly screwing it, the present invention greatly restricts the mounting of components on the printed board. It is an object of the present invention to provide a printed board unit that can improve the mounting efficiency of the printed board to the unit without causing damage to the printed board.

(4) Structure of the invention The above object is the main structure of the invention, which is a printed board unit in which a printed board with a protruding connector for shield connection at one end is mounted inside a box. The L-shaped member has a fork-like leg portion and a head portion bent forward and backward, and the head portion of the L-shaped member is attached to a fixed plate attached to the box body, and the protrusion of the printed board is provided. It is screwed from the connector side, and the L
One leg of the fork-shaped leg of the character-shaped member is in contact with one surface in the thickness direction of the printed board, and the other leg is in contact with the other surface in the thickness direction of the printed board, and the fork-shaped leg is in contact with the other surface in the thickness direction of the printed board. This is achieved by a printed board unit characterized in that it is configured to sandwich the edge of the printed board provided with the connector.

(5) Embodiments of the invention Hereinafter, embodiments of the invention will be specifically described with reference to the drawings. In the drawings, parts that are equivalent to those in the prior art are designated by the same reference numerals.

1 and 2 show a side view and a rear view, respectively, of a printed board unit according to the present invention.

Similar to what is shown in FIGS. 6 and 7, a printed board 3 is inserted parallel to the box 2 to form a printed board unit 10. Printed board unit 1
A front plate 4 is removably attached to the front surface of the box 0, and a printed board 3 is supported by the upper and lower two edges of the box body 2. In addition, the printed board 3 protrudes from the back of the unit to form a connector 5, and a fixing plate 11 is placed on the back of the box 2 in parallel with the printed board 3 at intervals. Fix it with.

Edge 1 of the center of the printed board 3 near the connector 5
3 is engaged with the forked leg portion 18 of the L-shaped member 14, while the head portion 19 of the L-shaped member 14 is engaged with the fixing plate 11.
Screw 1 from the protruding connector 5 side of the printed board 3
It is fixed at 5.

The L-shaped member 14 has a shape as shown in the perspective view in FIG. 3, the view in the direction of arrow A in FIG. 4, and the view in the direction of arrow B in FIG. It consists of legs 16 and 17 bent at different positions.

As shown in FIG. 3, one leg 16 of the forked leg portion 18 of the L-shaped member 14 is in contact with the pattern forming surface of the printed board 3, and the other leg 17 is in contact with the component mounting surface of the printed board 3. In this way, the edge 13 of the printed board 3 near the connector is sandwiched. On the other hand, two screw holes 20 are vertically provided in the head 19 of the L-shaped member 14, and the fixing plate 1 is fixed with screws 15.
1 from the connector side protruding from the printed board 3.

As shown in FIGS. 4 and 5, the legs 16 and 17 of the L-shaped member 14 are bent back and forth by an interval equal to the thickness C of the printed board 3. Pinch the edge 13 near the connector No. 3,
Curving, warping, etc. can be prevented.

As described above, the printed board 3 is fixed by the L-shaped member 14 so as to be in a straight line when viewed from the rear. L
The character-shaped member 14 may be attached to the fixed plate 11 in line with the printed board 3 inserted into the box body 2, but it is also possible to position it in advance and attach it to the fixed plate 11, and then insert the printed board 3. You may also do this. In any case, once the L-shaped member 14 is fixed to the fixing plate, no special screwing or removal process is required when inserting or removing the printed board 3 from the front plate side of the box body 2.

Further, since the legs 16 and 17 only prevent the printed board from curving, the area in contact with the printed board can be made narrower than in the conventional case where screws are used.

(6) Effects of the invention As mentioned above, according to the printed board unit of the present invention, the L-shaped member having the fork-shaped legs and the head bent at forward and backward positions is used to directly print the printed board. Since the printed board can be fixed without screwing to the unit, the linearity of the connector protruding from the printed board can be maintained, and there are no major restrictions on mounting components on the printed board. The removal process can be simplified and the installation efficiency can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of the printed board unit according to the present invention, Fig. 2 is a rear view, Fig. 3 is a perspective view of an L-shaped member, Fig. 4 is a view taken in the direction of arrow A in Fig. 3, 5 is a view taken along arrow B in FIG. 3, FIG. 6 is a side view of a conventional printed board unit, and FIG. 7 is a rear view of FIG. 6. In the figure, 2 is a box, 3 is a printed board, 4 is a front plate, 5 is a connector, 10 is a printed board unit, 11 is a fixing plate, 12 and 15 are screws, and 14 is an L
character-shaped member; 16 and 17 are legs; 18 is a forked leg; 1
9 is the head, and 20 is a hole for screwing.

Claims (1)

[Scope of Claim for Utility Model Registration] In a printed board unit consisting of a printed board with a protruding connector for shelf connection at one end attached to the inside of a box, the fork shape is bent by shifting its position from front to back. an L-shaped member having legs and a head; the head of the L-shaped member is screwed to a fixing plate attached to the box body from the connector side protruding from the printed board; One leg of the fork-shaped leg of the character-shaped member is in contact with one surface in the thickness direction of the printed board, and the other leg is in contact with the other surface in the thickness direction of the printed board, and the fork-shaped leg is in contact with the other surface in the thickness direction of the printed board. A printed board unit characterized in that it is configured to sandwich an edge of a printed board provided with a connector.