JP2738231B2 - Electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment used mainly for high frequency equipment.

[0002]

2. Description of the Related Art In recent years, practical use of satellite broadcasting and cable T
With the spread of V and the like, the demand for higher performance of high-frequency electronic devices is increasing day by day.

[0003] Conventional electronic equipment will be described below.
FIG. 5 is an exploded perspective view of a conventional electronic device, FIG. 6 is a completed perspective view thereof, and FIG. 7 is a sectional view of a main part thereof.

5, 6 and 7, 1 is an upper case, 2 is a lower case, 3 is an electronic unit, 4 is a printed circuit board, 5 is a mounting bracket, 6 is a screw, 7 is a nut, and 8 is a plug. It is. The configuration is as follows.
That is, an electronic unit 3 is provided in the lower case 2, and a printed circuit board 4 is mounted on the electronic unit 3. The mounting bracket 5 is mounted on the printed circuit board 4 and is fixed to the lower case 2 through the mounting bracket 5 with screws 6. Also, nut 7
Fixed the plug 8 of the electronic unit 3 that penetrated the side plate of the lower case 2.

The assembling operation of the electronic device configured as described above will be described below. In order to fix the electronic unit 3 to the lower case 2, first, the mounting bracket 5 is mounted on the printed circuit board 4 mounted on the electronic unit 3, and the screws 6 are inserted through the mounting bracket 5 to lower the lower case 2. 2 and then a nut 7 is fastened and fixed to the plug 8 of the electronic unit 3 that has penetrated the side plate of the lower case 2.

[0006]

However, in the above-described conventional configuration, in order to fix the electronic unit 3, the mounting bracket 5 is mounted on the printed circuit board 4, and the mounting unit 5 is screwed down with the screw 6 via the mounting bracket 5. For the configuration to fix to Case 2,
It is necessary to secure a mounting space for the mounting bracket 5 in the electronic device. Further, it is necessary to secure a mounting space for the mounting bracket 5 on the printed circuit board 4, which not only restricts the layout inside the electronic device and on the printed circuit board 4, but also lowers the mounting efficiency and makes effective use of the space. There was a problem that it was not possible.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide an electronic device capable of relaxing a layout inside the electronic device or on a printed circuit board and enabling effective use of space.

[0008]

To achieve this object, an electronic apparatus according to the present invention comprises a lower case, an upper case mounted over the lower case so as to cover the lower case, and
The pudding abutted inside the upper case and the lower case
Board and the electronic unit mounted on this printed circuit board
And a plug provided on the electronic unit, and the case
A hole provided in the side surface of the plug and into which the plug is inserted.
And a nut for tightening the plug inserted into this hole.
The printed circuit board is located in front of the lower case as viewed from outside.
It is arranged to the right of the plug.

[0009]

With this configuration, a printer on which electronic components are mounted is provided.
So that the printed circuit board contacts the lower case and the upper case.
Because it is securely mounted, it can withstand drop tests and vibration tests
It is no longer necessary to add a mounting bracket for reinforcing the steel.
For this reason, layouts on electronic devices and printed circuit boards
No restrictions occur, so there is no reduction in mounting efficiency and
Resources can be used effectively.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of an electronic apparatus according to an embodiment of the present invention, FIG. 2 is a completed perspective view, FIG. 3 is a cross-sectional view showing a main part thereof, and FIG. FIG.

1 to 4, reference numeral 11 denotes an upper case made of resin, 12 denotes a lower case made of metal, 13 denotes an electronic unit, 14 denotes a printed circuit board, 15 denotes a nut, and 16 denotes a signal input to the electronic unit 13. The plug 17 is a V-cut formed on a division line of the printed board 14, and the vertical dimension C of the printed board 14 is in contact with the inner surface dimension B of the upper case 11 and the lower case 12. The printed circuit board 14 is mounted on the side surface of the electronic unit 13. The plug 16 of the electronic unit 13 is fitted with a washer, penetrates a hole in the side surface of the lower case 12, and is fastened with a nut 15. Then, the upper case 11 is mounted and fixed so as to cover the lower case 12.

The operation of the electronic device configured as described above will be described with reference to FIGS. 2, 3 and 4. FIG.

A printed circuit board 14 is mounted on a side surface of the electronic unit 13. The plug 16 of the electronic unit 13 is fitted with a washer, penetrates a hole in the side surface of the lower case 12, and is fastened and fixed with a nut 15.
Here, since the vertical dimension C of the printed board 14 is substantially equal to the inner surface dimension B of the lower case 12 and the upper case 11, when the upper case 11 is mounted and fixed so as to cover the lower case 12, the printed board 14 It is fixed without a gap between the lower case 12 and the upper case 11. The printed circuit board 14 mounted on the side surface of the electronic unit 13 is generally produced in a form in which a plurality of printed circuit boards are connected to increase production efficiency, and is divided in a later process. Are formed, and the upper and lower end surfaces of the printed circuit board 14 are
7, the dimension C of the printed circuit board 14 in the vertical direction is always stable without variation, and is pressed against the inner surfaces of the lower case 12 and the upper case 11 to be firmly fixed.

Further, the printed circuit board 14 mounted on the side of the electronic unit 13 is arranged rightward toward the tightening portion of the nut 15, so that the printed circuit board 14 can be easily lowered by simply tightening the nut 15. It is applied to the case 11 without any gap and positioned.

As described above, according to the present embodiment, the upper and lower end surface dimensions C of the printed circuit board 14, the lower case 12, and the upper case 1
1 have substantially the same inner surface dimension B, so that the printed circuit board 14 is fixed without a gap between the lower case 12 and the upper case 11, so that a firm fixation is obtained and reinforcement for withstanding a drop test and a vibration test. It is not necessary to add a mounting bracket for performing the above. For this reason, the layout in the electronic device and on the printed circuit board 14 is not restricted, so that the space can be effectively used without lowering the mounting efficiency.

Further, since the cost of parts and the cost of mounting the mounting bracket are not required, an inexpensive fixing method can be realized.

Further, since the upper and lower end surfaces of the printed circuit board 14 are divided by the V-cuts 17, the vertical dimension C of the printed circuit board 14 is always stable without variation, and the lower case 12 and the upper case 11 Will always be substantially equal to the inner surface dimension B. Therefore, there is no need to worry about variation in fixing strength due to variation in the dimension C. Therefore, there is no fear that the dimension C between the upper and lower end surfaces of the printed circuit board 14 becomes excessive and exceeds the inner dimension B of the lower case 12 and the upper case 11 and the upper case 11 cannot be mounted.

Further, the printed circuit board 14 is disposed on the right side of the tightening portion of the nut 15, that is, in the direction of rotation of the nut 15. Positioning is performed without any gap. For this reason,
It is possible to easily and stably fix the electronic unit 13 and the printed circuit board 14 without a special positioning device for correct fixing, so that there is no need to worry about a variation in fixing strength due to a variation in a mounting position, and the upper case 11 can be mounted. No more worrying about not being able to do it.

[0019]

According to the present invention, as described below, an electronic component is provided.
Between the lower case and upper case
It is firmly attached so that it comes into contact with
Add mounting brackets to reinforce to withstand dynamic tests
There is no need to For this reason, electronic devices and printed
No mounting restrictions on the board, so mounting efficiency
The space can be used effectively without lowering the space. Ma
In addition, the printed circuit board should be turned to the right of the plug,
Tighten the nut because it is arranged in the rotation direction
The printed circuit board can be easily placed in the lower case
Will be decided. For this reason, special positioning
It can be fixed easily and safely without a jig. Also this
Thus, the upper case can be easily attached.

In addition, there is also an effect that inexpensive fixing can be performed because the component cost and the mounting cost of the mounting bracket become unnecessary.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an electronic device according to an embodiment of the present invention.

FIG. 2 is a completed perspective view of the same.

FIG. 3 is a sectional view of the essential part taken along line AA of FIG. 2;

FIG. 4 is a side view of the printed circuit board.

FIG. 5 is an exploded perspective view of a conventional electronic device.

FIG. 6 is a completed perspective view of the same.

FIG. 7 is a cross-sectional view of the main part along line AA in FIG. 6;

[Explanation of symbols]

 11 Upper case 12 Lower case 13 Electronic unit 14 Printed circuit board 15 Nut 16 Connector 17 V cut

Claims (2)

(57) [Claims] And 1. A lower case, and upper case mounted above the lower case so as to cover the lower case, the Ueke
Board and the printed circuit board in contact with the inside of the lower case
And the electronic unit mounted on this printed circuit board.
Plug provided in the electronic unit of the above, and the side of the case
And a hole into which the plug is inserted,
A nut for tightening a plug inserted into the hole,
The printed circuit board is not covered with the plug when viewed from the outside of the lower case.
Electronic devices arranged to the right . 2. The electronic device according to claim 1, wherein upper and lower end surfaces of the printed circuit board mounted on the electronic unit are V-cut.