JPH06152169A - Grounding structure - Google Patents

Abstract

PURPOSE:To provide a grounding structure between a high-frequency radio apparatus mounted on a printed wiring board and an enclosure on which a unit is mounted. CONSTITUTION:As the grounding structure of a unit 9 in which a high-frequency radio apparatus 8 has been mounted on a printed wiring board 7, a grounding plate 1 wherein mounting holes 2 have been formed at one end, a nearly C- shaped bend part 3 has been formed at the other end and a plurality of nearly inverted V-shaped bend formation parts 4 are formed between the mounting holes 2 and the nearly C-shaped bend part 3 is attached near a guide rail 10 on the side of an enclosure. Thereby, when the unit 9 in which the high-frequency radio apparatus 8 has been mounted on the printed wiring board 7 is mounted on the enclosure, a plurality of grounding points are formed for the high-frequency radio apparatus 8 because of the provision of the plurality of nearly inverted V-shaped bend formation parts 4, the electric performance of the grounding structure is stabilized and also the posture of the unit 9 is stabilized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding structure for a unit in which high frequency equipment is mounted on a printed wiring board.

[0002]

2. Description of the Related Art A high frequency radio 8 is mounted on a conventional printed wiring board 7.
Fig. 3 shows the ground acquisition structure of the unit 9 equipped with
As shown in FIG.
It is formed in a letter shape 12, and is attached to the front part of the front cross girders 6 provided on the upper and lower sides on the housing side with a screw or the like, or the earth plate 11 is formed in a substantially Z shape, and the above-mentioned substantially inverted V-shaped earth plate 11 is formed. There are those that are installed in the same way as.

[0003]

Since the grounding structure of the unit in which the high-frequency radio device is mounted on the conventional printed wiring board is attached only to the front portions of the upper and lower transverse beams, the contact points are located on the upper and lower sides, respectively. Since there was only one point, there were times when there was a shortage of earth acquisition and electrical characteristics could not be obtained. In addition, when inserting the unit, there is no problem at first, but there is a problem that the unit becomes slanted during the insertion process and the posture becomes unstable.

[0004]

The earth acquisition structure of the present invention comprises a unit in which a high frequency device is mounted on a printed wiring board,
In a chassis of a structure in which it is guided by guide rails installed across the front and rear transverse girders provided on the upper and lower sides of the chassis side, and is fitted and connected to the connector on the chassis side, a mounting plate is made of an elastic long thin plate and has a mounting hole at one end, The earth plate has a bent portion at the other end and is provided with a plurality of substantially inverted V-shaped bend forming projections between the mounting hole and the bent portion. The earth plate is provided near the guide rail. Along the front and rear transverse girders using the mounting holes and the bent portions to connect the high-frequency device and the plurality of bend forming protrusions, and the bent portions are It is bent into a substantially C shape.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a sectional view of the assembled embodiment.

The ground plate 1 is made of a thin elastic plate and has a mounting hole 2 at one end and a substantially C-shaped bent portion 3 at the other end. Furthermore, the mounting hole 2 and approximately C
The ground plate 1 is formed by providing a plurality of substantially inverted V-shaped bend forming portions 4 between the V-shaped bending portions 3. As shown in FIG. 1, the assembly is carried out along the guide rail 10, and the rear side girder 5 on the housing side is provided with a substantially C-shaped ground plate 1.
The character-shaped bent portion 3 is hooked, while the front cross girder 6 uses the mounting hole 2 at the other end of the earth plate 1 and is assembled with screws or the like. The ground plate 1 is similarly assembled not only on the lower side of the housing but also on the upper side. As a matter of course, the substantially C-shaped bent portion 3 hooked on the rear cross beam 5 is set in the shape of the bent portion so that the ground plate 1 does not come off from the rear cross beam 5 when the weight of the high-frequency radio device 8 is applied and pressed. It goes without saying that you have to do it.

According to this embodiment, when the unit 9 having the high frequency radio 8 mounted on the printed wiring board 7 is mounted in the housing, the printed wiring board 7 is held and guided by the upper and lower guide rails 10, The high frequency radio device 8 includes a plurality of substantially inverted V-shaped bend forming portions 4 provided on the ground plate 1.
Since a plurality of contact points for obtaining the ground are obtained, the posture of the unit 9 can be further stabilized.

[0008]

As described above, according to the present invention, a grounding structure of a unit in which a high frequency radio is mounted on a printed wiring board is provided with a mounting hole at one end of the grounding plate and a substantially C-shaped bending at the other end. By forming a plurality of substantially inverted V-shaped bend forming portions between the mounting hole and the substantially C-shaped bent portion, the high-frequency radio device has a plurality of ground acquisition points, which can stabilize the electrical performance. In addition, when mounting a unit in which a high-frequency radio device is mounted on a printed wiring board in a housing, there is an effect of stabilizing the posture of the unit by the plurality of substantially inverted V-shaped gap forming portions.

[Brief description of drawings]

FIG. 1 is a perspective view showing an assembled state of an earth plate according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a usage state of FIG.

FIG. 3A is a perspective view showing a conventional ground acquisition structure;
(B) is a sectional view.

[Explanation of symbols]

 1, 11 Ground plate 2 Mounting hole 3 Approximately C-shaped bent part 4, 12 Approximately inverted V-shaped bent forming part 5 Rear cross girder 6 Front cross girder 7 Printed wiring board 8 High frequency radio 9 Unit 10 Guide rail

Claims (2)

[Claims] 1. A structure in which a unit having a high-frequency device mounted on a printed wiring board is guided by guide rails attached to front and rear transverse girders provided on the upper and lower sides of the housing side, and is fitted and connected to a connector on the housing side. Of the housing, which is composed of a long thin plate having elasticity and has a mounting hole at one end and a bent portion at the other end, and has a plurality of substantially inverted V-shaped bend forming projections between the mounting hole and the bent portion. A ground plate having a portion, and the ground plate is attached to the front and rear cross beams along the vicinity of the guide rail using the mounting hole and the bent portion, and the high-frequency device and the plurality of bends are formed. An earth acquisition structure characterized in that it is configured to connect to a protrusion. 2. The earth acquiring structure according to claim 1, wherein the bent portion is bent into a substantially C shape.