JPH0573998U - Frame of high frequency equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the strength of the frame used in the construction of high-frequency equipment. [Structure] A long and narrow metal plate is bent into a U-shape in a plane to form a frame body 21 for accommodating a circuit board therein.
At the upper edges of the three side walls 22, 23, 24 in
5, the side walls 22, 23, 24 are reinforced by the flanges 25 at the same time as the bent portions 2
Improve the strength of 7,28. By improving the strength of the bent portions 27, 28 by the flange 25, the opposing side walls 2
It eliminates the occurrence of variations in the distance between the tips of 2, 24
It is not necessary to align and pack the single item, and the transportation cost can be reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a frame used to form a high-frequency device by housing a circuit board inside.

[0002]

[Prior Art]

 As shown in FIGS. 4 and 5, a high-frequency device having a relatively simple structure is formed by bending an elongated metal plate into a planar U-shape to form a frame body 1, which is surrounded by three side walls 2, 3, and 4 of the frame body 1. It has a structure in which the circuit board 5 is incorporated inside. The circuits and on-board components are omitted from the figure.

The frame 1 as described above has a weak strength and is easily deformed because the metal plate is simply bent into a U-shape in a plane.

Conventionally, in order to improve the strength of the frame body 1 described above, as shown in FIGS. 6 and 7, ribs 6 are stamped and formed on the three side walls 2, 3 and 4, and as shown in FIGS. As described above, the upper edges of the three side walls 2, 3 and 4 are reinforced by providing the flanges 7, 8 and 9 individually.

[0005]

[Problems to be solved by the device]

 By the way, although the strength of the three side walls 2, 3 and 4 of the frame body 1 is improved by the above reinforcement, as shown in FIGS. 6 and 8, the both side bent portions 10 and 11 of the frame body 1 are reinforced. Since the end portions of the side walls 2 and 4 facing each other on both sides tend to vary in the directions of the arrows in FIGS. 7 and 9, there is a problem that the circuit board cannot be mounted in some cases.

[0006] In particular, such variations are likely to occur during the transportation of the frame 1 as a single item. Therefore, at the present time, when transporting a single item, the frames are neatly arranged in an aligned package to prevent deformation during transportation. However, such aligned packaging is costly and will significantly increase the product price. Therefore, the above situation is unavoidable, and the reinforcement shown in Fig. 6 and Fig. 8 is adopted. is the current situation.

In view of this, the present invention provides a frame of a high-frequency device that can reinforce the bent portion so that the distance between the end portions of the side walls facing each other does not vary, and that can reduce the transportation cost. With the goal.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention adopts a configuration in which flanges are provided on the upper end edges of the three side walls so as to be continuous with each other.

[0009]

[Action]

 Since the flanges provided on the three side walls are continuous with each other, the strength of not only each side wall of the frame but also the bending part is improved, and there is no variation in the tip interval of the side walls facing each other. Enables cost reduction.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 of the accompanying drawings.

As shown in the figure, in the frame body 21 that forms a high-frequency device by incorporating a circuit board inside, the two side walls of the elongated metal plate are bent so that the three side walls 22, 23, 24 have a planar U-shape. Flanges 25 formed on the upper side edges of the three side walls 22, 23, and 24 and bent at right angles toward the inside are provided in a continuous state.

As shown in the development view of FIG. 2, in the frame body 21, a flange forming portion 25 a is preliminarily punched and formed on the upper end edge of the elongated metal plate 26, and the elongated metal plate 26 is bent into a planar U-shape. The flange forming portion 25a is bent by pressing or drawing to form a continuous flange 25 over the upper edges of the three side walls 22, 23, 24.

As shown in FIG. 3, the frame body 21 of the present invention has a continuous structure in which the three side walls 22, 23, 24 are reinforced by the flange 25 and the flange 25 connects the three side walls 22, 23, 24. Therefore, the strength of the bent portions 27, 28 of the three side walls 22, 23, 24 is improved, so that the gap between the tips of the opposite side walls 22 and 24 does not vary, and the frame 21 is removed. The transportation cost can be reduced because there is no need to neatly line up the packaging when transporting a single item.

[0014]

[Effect of the device]

 As described above, according to the present invention, since the flanges are provided on the upper end edges of the three side walls so as to be continuous with each other, the strength of the bent portion can be improved at the same time as the reinforcement of the three side walls, and the strength of the entire frame body. In addition, there is no variability in the spacing between the tips of the side walls facing each other on both sides, and there is no need for aligned packaging when transporting individual items, and product costs can be reduced by reducing transport costs.

[Brief description of drawings]

FIG. 1 is a perspective view showing a frame body of the present invention.

FIG. 2 is a development view of the above.

FIG. 3 is a plan view of a frame body.

FIG. 4 is a perspective view of a high-frequency device using a conventional frame.

FIG. 5 is a plan view of the frame body of the above.

FIG. 6 is a perspective view showing a conventional frame body reinforced with ribs.

FIG. 7 is a plan view of the above.

FIG. 8 is a perspective view showing a conventional frame body reinforced with a flange.

FIG. 9 is a plan view of the above.

[Explanation of symbols]

 21 Frame 22, 23, 24 Side Wall 25 Flange

Claims (1)

[Scope of utility model registration request] 1. A frame body of a high-frequency device in which a metal plate is bent into a U-shape in a plane to form three side walls, and a circuit board is housed inside the three side walls. A frame body for a high-frequency device, characterized in that a flange is provided on the upper edge in a continuous state with each other.