JP2762874B2 - Earth acquisition structure - Google Patents

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 having a high-frequency device 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.
The ground acquisition structure of the unit 9 equipped with
As shown in FIG.
The ground plate 11 is formed in the shape of a letter "12" and is attached to the front of the front cross beam 6 provided on the upper and lower sides of the housing by screws or the like. The ground plate 11 is formed in a substantially Z-shape. Some installations are similar.

[0003]

In this conventional unit for mounting a high-frequency radio on a printed wiring board, the ground acquisition structure is mounted only on the front part of the upper and lower horizontal girder, so that the contact points are different from each other. Since there was only one point, the ground was insufficiently acquired, and electrical characteristics could not be obtained. When the unit is inserted, there is no problem at first, but there is a problem that the unit becomes oblique during the insertion process and the posture becomes unstable.

[0004]

According to the present invention, there is provided a ground acquisition structure comprising: a unit having a high-frequency device mounted on a printed wiring board;
Guided by guide rails attached to the front and rear cross beams provided on the upper and lower sides of the housing side, in a housing of a structure to be fitted and connected to the connector on the housing side, a mounting hole made of an elastic long thin plate at one end, An earth plate having a bent portion at the other end and a plurality of substantially inverted V-shaped bent forming protrusions provided between the mounting hole and the bent portion is provided. Is attached to the front and rear cross beams along the front and rear cross beams using the mounting holes and the bent portions, so that the high-frequency device and the plurality of bent forming protrusions are connected to each other. It is bent in a substantially C shape.

[0005]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of one embodiment of the present invention, and FIG. 2 is a sectional view of the assembled state of the embodiment.

The earth plate 1 is made of a long plate made of a thin elastic body, has a mounting hole 2 at one end, and a substantially C-shaped bent portion 3 formed 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 bent forming portions 4 between the bent portions 3. As shown in FIG. 1, as shown in FIG. 1, the ground plate 1 is mounted on the rear cross beam 5 on the housing side along the guide rail 10.
The bent portion 3 is hooked, and the mounting hole 2 at the other end of the ground plate 1 is used in the front cross beam 6 and 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. Naturally, the substantially C-shaped bent portion 3 hooked on the rear cross beam 5 has a bent shape so that it does not come off from the rear cross beam 5 when the high frequency radio device 8 is pressed by the weight of the earth plate 1. 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 on the housing, the printed wiring board 7 is held and guided by the upper and lower guide rails 10, The high-frequency radio 8 is formed by a plurality of substantially inverted V-shaped bent forming parts 4 provided on the ground plate 1.
A plurality of contact points for acquiring the ground are obtained, and the posture of the unit 9 can be further stabilized.

[0008]

As described above, according to the present invention, a mounting hole is formed at one end of a ground plate and the other end is bent into a substantially C-shape as a ground obtaining structure for a unit having a high-frequency radio mounted on a printed wiring board. By forming a plurality of substantially inverted V-shaped bent portions between the mounting hole and the substantially C-shaped bent portion, the grounding point of the high-frequency radio becomes a plurality, and the electric performance can be stabilized. Instead, in mounting the unit in which the high-frequency wireless device is mounted on the printed wiring board to the housing, the plurality of substantially inverted V-shaped spacer forming portions has the effect of stabilizing the posture of the unit.

[Brief description of the drawings]

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

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

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

[Explanation of symbols]

 DESCRIPTION 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 beam 6 Front cross beam 7 Printed wiring board 8 High frequency radio device 9 Unit 10 Guide rail

Claims (2)

(57) [Claims] 1. A structure in which a unit on which a high-frequency device is mounted on a printed wiring board is guided by guide rails attached to front and rear cross beams provided on the upper and lower sides of a housing side, and is fitted and connected to a connector on the housing side. In the above-mentioned housing, a plurality of substantially inverted V-shaped bent forming projections are formed between the mounting hole and the bent portion, the elastic thin plate having a mounting hole at one end and a bent portion at the other end. A ground plate provided with 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 holes and the bent portions, and the high-frequency device and the plurality of bent portions are formed. A ground acquisition structure characterized by connecting to a projection. 2. The ground acquisition structure according to claim 1, wherein said bent portion is bent in a substantially C-shape.