JPH0493097A - Electronic device containing housing - Google Patents

Abstract

PURPOSE:To effectively prevent external leakage of an electromagnetic wave to be radiated from an electronic device contained therein by connecting adjacent frames in the case of connection by a connecting plate, and interposing conductive packing between the plate, a front door and a back plate. CONSTITUTION:Folding part 8 of left and right side plates 4, 5 is clamped to frames (9, 12), (10, 11) through conductive packing 15 by a clamping bolt 13. A peripheral groove is engraved on the peripheral edge of the part 8 of a front door 22, and the packing 15 is engaged fixedly with the groove. The packing 15 is brought into contact with the end faces of the plates 4, 5 in a state that the door 22 is closed. The part 8 of the plate 23 is clamped to the frames 11, 12 by the bolt 13. The packing 15 is mounted, similarly to the door 22 at the part 8, and the packing 15 is brought into pressure contact with the end faces of the plates 4, 5 in a state that the plate 23 is clamped to the frames 11, 12.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides a method in which a plurality of unit casings each having an electromagnetic shielding function are disposed in a horizontal direction, and a bordering side plate is removed. The present invention relates to an electronic device storage case that is a single container.

(Prior Art) Some electronic devices emit strong electromagnetic waves to their surroundings. Using such electronic devices and other devices at the same time will have a negative impact on the other devices. Also,
Even if the emitted electromagnetic waves are small, the electromagnetic waves will adversely affect the measurement results, for example when performing precision measurements.

Therefore, electronic devices that emit electromagnetic waves are usually housed in a housing that has an electromagnetic shielding function.

FIG. 5 is a perspective view showing a general electronic device storage case. This case 1 has a substantially orthogonal hexahedral shape, and a front door 2 is provided on the front. Others, back plate 3. Left and right side plates 4, 5. A ceiling plate 5° and a bottom plate 7 are attached.

FIG. 6 is a horizontal sectional view taken along line xx' in FIG. 5 and viewed from above. The front door 2. The back plate 3 and the left and right side plates 4 and 5 have substantially the same cross-sectional shape, and have folded portions 8 formed at both ends. The back plate 3 and the left and right side plates 45 each have four frames 9, 10.
1112 with connecting bolts 13. Incidentally, FIG. 7 is an enlarged sectional view showing the main part indicated by circle A in FIG. 6.

Further, one end of the front door 2 is rotatably attached to the left frame 9 of the frames 9 and 10 located on both sides of the front with a hinge cord 4. A rectangular annular ring as shown in FIG. A conductive packing 15 is inserted. Specifically, as shown in FIG. 7, a groove is cut on the side of the folded portion 8, and the conductive packing 5 is fitted and fixed into the groove.

In such a case], the front door 2 is opened, the electronic device 16 is housed in the case 1, and the front door 2 is closed. Then,
Conductive packing 1 is provided between each frame 9 to 12 and each folded portion 8 of the front door 2, back plate 3, and left and right side plates 4 and 5.
5 is inserted, the electromagnetic waves emitted from the electronic device 6 will not leak to the outside of the casing 1.

However, there may be cases where it is necessary to house a plurality of electronic devices 16 within this casing. In such a case, it is sufficient to prepare two casings 1, but since the connection cables that connect the electronic devices 16 come out of the casing 1, there is a concern that electromagnetic waves may be emitted from the connection cables exposed to the outside. There is.

Further, it is preferable that the connection cables connecting the electronic devices 16 be as short as possible. Furthermore, it may be necessary to accommodate a large electronic device 16 that cannot be divided.

In such a case, it is sufficient to manufacture a large-sized case 1, but since it is uneconomical to manufacture a case 1 for each number of connected electronic devices 13 or for each size of electronic devices 13, As shown in the figure, an electronic equipment housing housing 17 is proposed in which unit housings 1 and 1a having the same configuration as the housing 1 in FIG. has been done.

FIG. 10 is a horizontal sectional view taken along the line YY' and viewed from above in the electronic device storage case]7 in which the two unit cases 1.about.1a shown in FIG. 9 are connected. And the 11th
The figure is an enlarged sectional view showing the main part indicated by circle B in FIG. 11. Note that the same parts as in FIGS. 6 and 7 are given the same reference numerals.

That is, the right side plate 5 of the left unit case 1 and the left side plate of the left unit case 1a are connected to each frame 10,1.
．． 1, 9a, and 1.2a, and connect the adjacent frames to each other, i.e., frame 109a to frame 1.
．． 1 and 1.2a are connected to each other by connecting bolts 18, respectively.

Therefore, one new electronic equipment storage case 17 is formed from each unit case ], , la. Two electronic devices 1.6. ], 6a, and a connection cable 19 for connecting these electronic devices 16 and 16a.

In this way, the conventional housing can be converted into the electronic device housing housing 17 having twice the volume by simply removing the two side plates that are in contact with each other and connecting the adjacent frames to each other. In addition, in FIG. 10, two unit cases],
Although the terminal housings 1a are connected, for example, by connecting three or four terminal housings in contact with each other in the lateral direction, it is possible to obtain the electronic equipment storage housing 17 having a volume three or four times larger.

However, even in the electronic device storage case 17 constructed by horizontally connecting a plurality of unit cases 1 and 1a as shown in FIG. 10, the following problems still occur.

That is, as shown in FIG. 11, the conductive packing 15 of one unit case 1 is inserted between the folded part 8 of the back plate 3 and the frame 11 at the connecting portion of the unit cases 1.1a. The conductive gasket 15a of the other unit case 1a is only inserted between the folded portion 8a of the back plate 3a and the frame 12a. Therefore, a gap 20 is created between the frames 11 . 12 a connected to each other by fixing bolts 18 . Then, in this gap 20, the electronic device storage case 1
The inside and outside of 7 are connected. As a result, as shown by the arrow in FIG.
．． Electromagnetic waves radiated from 6a leak outside.

(Problems to be Solved by the Invention) As described above, in the conventional electronic device housing case, there is a problem in that electromagnetic waves leak to the outside through the gaps between the connection parts when the unit cases are connected.

The present invention was made in view of these circumstances, and
When connected, by connecting adjacent frames to each other with a connecting plate, the unit case can be used alone, and even if multiple unit cases are connected, gaps are prevented from forming at the connection part. An object of the present invention is to provide an electronic device housing case that can reliably prevent electromagnetic waves emitted from electronic devices housed inside from leaking to the outside.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides four frames constituting the four vertical sides of the orthogonal hexahedron, and left and right side surfaces of the orthogonal hexahedron. left and right side plates attached to each frame to cover the left and right side plates, a front door attached to each end of the left and right side plates to selectively cover the front of the orthogonal hexahedron, and a front door to cover the back of the orthogonal hexahedron. A back plate attached to each frame, a plurality of conductive gaskets inserted between the front door, back plate, and left and right side plates, and one end of the front door can be rotated with respect to one side plate. A plurality of unit casings each consisting of a hinge supporting the casing are placed in contact with each other in the lateral direction, and a pair of side plates in contact with each other are removed to form an electronic container. In the equipment storage case, among the four frames to which the removed pair of side panels were attached, the pair of adjacent frames located on the front side are connected to each other, and the adjacent front doors are connected to each other. The front side connection plate is pressed against the other side through the conductive packing, and the pair of removed side plates or the pair of frames adjacent to each other on the back side of the four attached frames are connected to each other. It is provided with a rear side connection plate which is connected to each other and is pressed into contact with each adjacent rear door plate via a conductive packing.

(Function) According to the electronic device casing configured in this manner, the plurality of unit casings are arranged in contact with each other in the lateral direction. Then, a pair of side plates that are in contact with each other are removed, and after being removed, the frames that are adjacent to each other among the four frames are connected to each other via the front side connection plate and the back side connection plate, respectively.

Each connection plate is press-contacted to each front door and each back plate via conductive bridges, respectively. Therefore, there is no gap between the adjacent unit cases. Therefore, electromagnetic waves are reliably prevented from leaking to the outside.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a horizontal cross-sectional view showing a schematic configuration of one unit casing constituting the electronic device storage casing of the embodiment. The same parts as in FIG. 6 are given the same reference numerals.

Therefore, detailed explanation of the overlapping parts will be omitted.

In the single-position body 2 of this embodiment, a front door 22, a back plate 23 . The left and right side plates 4 and 5 have the same cross-sectional shape, and have folded portions 8 formed at both ends.

However, the front door 22 and the back plate 23 are attached to the left and right side bodies 4,
[formed longer than 5] 0. Incidentally, FIG. 2 is an enlarged sectional view showing the main part indicated by circle C in FIG. 1.

The folded portion 8 of the left side plate 4 is fixed to each frame 9° 12 with a fixing bolt 3 via a conductive packing 15. Similarly, the folded portion 8 of the right side plate 5 is attached to each frame 1.
0.11 through the conductive packing 15]3
is fixed. Further, the left end of the front door 22 is rotatably attached to the end surface of the left side plate 4 with a hinge 24.

A circumferential groove is cut in the peripheral edge of the folded portion 8 of the front door 22, and a rectangular conductive packing 15 shown in FIG. 8 is fitted and fixed into this groove. ing. Therefore, with the front door 22 closed, the conductive packing 15 comes into contact with the end surfaces of the side plates 4 and 5. Further, the folded portion 8 of the back plate 23 is fixed to each frame 11.12 with fixing bolts 13. Similarly to the front door 22, a conductive packing 1 is attached to the folded part 8 of the back plate 23.
5 is attached, and the back plate 23 is attached to each frame 1.
1. In the state where it is fixed at
are pressed together.

In addition, a ceiling plate 6 and a bottom plate 7 not shown or shown in FIG.
are also fixed to each of the frames.

In such a unit case 21, the front door 22 is opened, the electronic device 16 is housed in the unit case 21, and the front doors 2 are closed. Then, conductive gaskets 15 are inserted between the folded parts 8 of the front door 22 and the back plate 23 and the end faces of the left and right side plates 4 and 5, so that the electronic equipment]
The electromagnetic waves radiated from 6 do not leak to the outside of this single-position body 21.

FIG. 3 is a horizontal cross-sectional view of the electronic device storage case 25 in which the two unit cases 2121a shown in FIG. 1 are laterally connected. FIG. 4 is an enlarged sectional view showing the main part indicated by the circle in FIG. 3.

Note that the same parts as in FIGS. 1 and 2 are given the same reference numerals.

That is, the right side plate 5 of the left unit case 2 and the left side plate of the left unit case 21a are connected to each frame 10.
, 1.1.9a, 12a. and,
The frames 1.0.9a located on the front side are connected to each other by the front side connection plate 26 via the fixing bolts 13, 13a,
The frames 11, 1.2a located on the back side are connected by a back side connection plate 27 via a fixing bolt 1313a.

In addition, the front door 22a of the right unit case 21a has a hinge 2 on the front side of the front side connection plate 26 instead of the removed side plate.
It is rotatably supported by 4a.

Therefore, the right front door 22a can also be opened and closed normally.

Since the front side connection plate 26 and the back side connection plate 27 are each removed and serve as the end surfaces of each side plate, the front side connection plate 26 and the back side connection plate 27 are provided with the left and right unit casings 21. , 21a each front 17it22, 22a
And each conductive gasket 1515a attached to the folded portion 8, 8a of each back plate 23.degree. 23a is pressed.

Therefore, each unit case 21. ．． 21a, one new electronic device storage case 25 is formed. Two electronic devices 1.6. ], 6
a and a connection cable connecting these electronic devices 16 and 16a] 9 are housed.

In the electronic device storage case 25 configured in this way, the front side connection plate 26 and the back side connection plate 27 have folded portions 8 of each front door 22.22a and each back plate 23.23a.
, 8a, each electrically conductive gasket 15.15a
are pressed together. Therefore, the gaps 28, 28 that exist at the connection parts between the front side connection plate 26 and each frame 10°9a
A is blocked by the conductive gaskets 15 and 15b and does not communicate with the outside of the electronic device storage case 25.

Similarly, the gaps 29 and 29a existing at the connection portions between the back side connection plate 27 and each frame 1112a are blocked by the conductive packings 15 and 15b, and do not communicate with the outside of the electronic device housing case 25.

Therefore, the electromagnetic waves emitted from the electronic devices 16, 16a housed in the electronic device storage case 25 do not leak to the outside.

In this way, just remove the two side panels that touch each other]4 and connect the adjacent frames and cowls.
The conventional medium-sized housing 2] can be modified into an electronic equipment storage housing 25 having twice the volume. In addition, in FIG. 3, two unit housings 21, 21a are connected, or three or more terminal housings are connected in contact with each other in the horizontal direction, thereby increasing the number of times or more. It is possible to obtain the electronic device storage case 25 having the above volume.

In addition, the unit housing 21. ．． From 21a to electronic device storage case 2
5, it is only necessary to prepare two plates, the front side connection plate 26 and the back side connection plate 27, so the manufacturing cost does not increase significantly.

[Effects of the Invention] As explained above, according to the electronic device storage case of the present invention, when connected, adjacent frames are connected to each other by the connecting plate, and the connection plate is connected to the front door and the rear plate. A conductive packing is interposed between the two. Therefore, not only can the unit casing be used alone, but even if multiple unit casings are connected, gaps will be prevented from forming at the connection part, thereby preventing electromagnetic waves emitted from electronic devices housed inside or external It can reliably prevent leakage.

[Brief explanation of drawings]

1 to 4 show an electronic device storage case according to an embodiment of the present invention, FIG. 1 is a horizontal sectional view showing the structure of the unit case, and FIG. 2 is a view of the structure of the unit case. 3 is a horizontal sectional view showing the overall structure of the electronic device storage case; FIG. 4 is a partial sectional view showing the main parts of FIG. 3; Fig. 5 is an external view showing a conventional unit case, Fig. 6 is a horizontal sectional view showing the configuration of the conventional unit case, and Fig. 7 is a partial cross-section showing the main parts of Fig. 6. FIG. 11 is a horizontal cross-sectional view showing the overall structure of the electronic equipment housing case, and FIG. 11 is a partial cross-sectional view showing the main part of FIG. 10. 4.5.5a...Side plate, 8,8a...Folded part, 9~
KO2a...Frame, 13.13a-Fixing bolt,
1.6, 1.6a - Electrical equipment, 19... Connection cable, 21 21a... Unit housing, 22.22a...
Front door, 23 23a...Back plate, 24.24a...Hinge, 26...Front side connection plate, 27...Back side connection plate. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Scope of Claims] Four frames constituting the four vertical sides of the orthogonal hexahedron, left and right side plates attached to each of the frames so as to cover the left and right side surfaces of the orthogonal hexahedron, and a front door attached to each end face of the left and right side plates and selectively covering the front side of the orthogonal hexahedron; a back plate attached to each of the frames so as to cover the back side of the orthogonal hexahedron; the front door; A unit casing composed of a plurality of conductive packings inserted between a back plate and left and right side plates, and a hinge that rotatably supports one end of the front door with respect to one side plate. An electronic equipment storage case in which a plurality of unit cases are arranged in contact with each other in the lateral direction, and a pair of side plates in contact with each other are removed to form a single container including a plurality of unit cases, Out of the four frames to which the pair of side panels were attached, the pair of frames adjacent to each other located on the front side are connected to each other, and are pressed against each adjacent front door via conductive packing. Connect the front side connection plate and the pair of frames adjacent to each other on the back side of the four frames to which the removed pair of side plates were attached, and connect each adjacent back door plate. An electronic device storage case including a back side connection plate that is press-fitted to the other side through a conductive packing.