JP3195718B2 - Honeycomb vents for electromagnetic shielding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb ventilation body for electromagnetic shielding. That is, the present invention relates to a honeycomb vent body used as a vent of a box-shaped structure for electromagnetic shielding.

[0002]

2. Description of the Related Art FIG. 5 is a front sectional explanatory view showing a conventional honeycomb vent body 1 for electromagnetic shielding of this kind. As shown in FIG. 1, this type of honeycomb ventilation body 1 includes a honeycomb core 2 and a peripheral frame plate 3 both having conductivity.
The outer peripheral frame plate 3 has a square or rectangular shape as a whole, has a U-shaped cross section, and is assembled to the honeycomb core 2 by sandwiching the peripheral ends of both open end surfaces 4 of the honeycomb core 2. That is, the peripheral ends of the honeycomb core 2 are fitted into the upper and lower ends 5 of the outer peripheral frame plate 3 having a U-shaped cross section, and both open end faces 4 of the peripheral end of the honeycomb core 2 are
By being crimped and fixed to the inner surfaces of the upper and lower ends 5, the outer peripheral frame plate 3 is assembled to the honeycomb core 2 and the conductivity between them is ensured. Reference numeral 6 in the figure denotes a ground attached to the outer peripheral frame plate 3.

[0003]

The following problems have been pointed out in such a conventional example. First, since the honeycomb core 2 is made of a planar aggregate of hollow columnar cells and has a porosity of about 90% or more,
The contact area of the open end face 4 of the peripheral end with the outer peripheral frame plate 3 was likely to be insufficient. That is, between the open end face 4 of the peripheral end of the honeycomb core 2 and the inner surfaces of the upper and lower ends 5 of the outer peripheral frame plate 3, only a contact area of about several percent of the crimping and fixing area of both is obtained. Due to the shortage of the electrical contact area between the two, the conductivity between the two becomes uncertain, and a problem may occur in the electromagnetic shielding performance as the honeycomb ventilation body 1 for electromagnetic shielding.

Secondly, in order to solve such a problem, it has heretofore been attempted to increase a contact area between the honeycomb core 2 and the outer peripheral frame plate 3. In other words, the peripheral end of the honeycomb core 2 is set wider, the opening end face 4 of the peripheral end is set wider, and the upper and lower ends 5 of the outer peripheral frame plate 3 having a U-shaped cross section are set longer and wider. Therefore, the crimp between them,
Attempts have also been made to increase the fixed area so as to increase the electrical contact area between the two to ensure conductivity and to improve the electromagnetic shielding performance. However, in such a conventional example, it has been pointed out that there is much waste in the peripheral end portion of the honeycomb core 2 and the upper and lower end portions 5 of the outer peripheral frame plate 3 which are set wider. That is, in the honeycomb ventilation body 1 for electromagnetic shielding, a portion that is not related to the air permeability, which is an essential function, is increased in size, resulting in a lot of waste and a problem in cost.

The present invention has been made in view of the above circumstances, and has been made to solve the above-mentioned problems of the prior art. The present invention provides a honeycomb core having a compressed peripheral end and an outer peripheral surface of the compressed peripheral end. The outer peripheral frame plate is brought into contact with and fixed to the side, so that an intervening material is further disposed between the compression peripheral end portion and the outer peripheral frame plate in the second aspect. By forming the compression peripheral end using the peripheral frame material, first,
Secondly, it is an object of the present invention to propose a honeycomb ventilation body for electromagnetic shielding that can obtain high electromagnetic shielding performance and is simple, easy and less wasteful and excellent in cost.

[0006]

The technical means of the present invention for achieving this object is as follows. First, claim 1
Is as follows. That is, the honeycomb ventilation body for electromagnetic shielding is composed of a main body portion formed of a planar assembly of hollow columnar cells, and a compression peripheral end which is located on the outer peripheral side of the main body portion and has a substantially plate-like shape in which the cells are compressed and deformed. With a part,
An electrically conductive honeycomb core; and an electrically conductive outer peripheral frame plate that is in contact with and fixed to the outer peripheral surface of the compressed peripheral end of the honeycomb core, is assembled to the main body through the compressed peripheral end, and has electrical conductivity. , Has. Claim 2 is as follows. That is, the honeycomb ventilation body for electromagnetic shielding is:
The honeycomb ventilation body for electromagnetic shielding according to claim 1, wherein a conductive and deformable tape or an adhesive such as an adhesive is provided between the compressed peripheral end portion of the honeycomb core and the outer peripheral frame plate. Be arranged.

Next, claim 3 is as follows. That is, in the honeycomb ventilation body for electromagnetic shielding according to claim 1, the honeycomb ventilation body for electromagnetic shielding has a comb-like shape from the opening end face side at the boundary between the main body part and the compression peripheral end part of the honeycomb core. The peripheral frame material is covered and inserted and fixed in each cell of the portion, and the compressed peripheral end of the honeycomb core is located outside each cell in which the peripheral frame material is inserted. Is formed by compression-deformation from the outside by the outer peripheral frame plate. Claim 4 is as follows. That is,
The honeycomb ventilation body for electromagnetic shielding is the honeycomb ventilation body for electromagnetic shielding according to claim 1, wherein both opening end faces at a boundary portion between the main body portion and the compression peripheral end portion of the honeycomb core include:
The thin frame material is attached and fixed,
A compression peripheral end portion of the honeycomb core is formed by compressing cells outside the peripheral frame material from outside by the peripheral frame plate.

[0008]

The present invention comprises the above-mentioned means, and operates as follows. The honeycomb ventilation body for electromagnetic shielding has a honeycomb core having a compression peripheral end, and an outer peripheral frame plate which is in contact with and fixed to the outer peripheral surface of the compression peripheral end, and both have conductivity. For example, it is used as a vent of a box-shaped structure for electromagnetic shielding, with both open end faces of the honeycomb core facing inside and outside, ensuring air permeability etc. between the inside and outside, and blocking harmful radio waves by its conductivity It is possible.

Therefore, in this honeycomb vent body, the first
In addition, the outer peripheral frame plate is brought into contact with and fixed not to the open end surface side of the honeycomb core but to the substantially flat outer peripheral surface side of the compression peripheral end portion having a substantially plate shape. Therefore, the compression peripheral end, the honeycomb core, and the outer peripheral frame plate are almost in surface contact, the electric contact area is extremely large, and the conductivity between the two is reliably and sufficiently secured, so that harmful radio waves can be reliably generated. And high electromagnetic shielding performance can be obtained. If an electrically conductive member is arranged between the two, the electromagnetic shielding performance is further improved.

Secondly, this is easily realized by a simple structure in which a compression peripheral end is formed in a honeycomb core. For example, as described in claim 3 or claim 4, by compressing and deforming the cell with the outer peripheral frame plate while using a predetermined peripheral frame material, the compressed peripheral end portion can be formed easily and easily. Moreover, the parts that are not related to the original function of ventilation are widely
There is no waste without increasing the size.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIGS. 1 and 2 show a first embodiment of the present invention. FIG. 1 (1) is a perspective view of a state before a peripheral frame material is put on a honeycomb core, and FIG. A perspective view of a state before the honeycomb core is compressed and deformed by the outer peripheral frame plate, FIG. 2 (1) is an overall perspective view, and FIG. 2 (2) is a circular view of FIG. 1 (1). FIG. 2 (3) is an enlarged view of one example, and FIG. 2 (3) is an enlarged view of another example of the circular portion shown in FIG. 1 (1). 3 and 4 show a second embodiment of the present invention.
FIG. 1A is a perspective view of a state before a peripheral frame material is attached to a honeycomb core, and FIG. 3B is a perspective view of a state before the honeycomb core is compressed and deformed by an outer peripheral frame plate. FIGS. 3 (3) and 3 (4) are longitudinal sectional views of the main part of FIG. 2 (2). FIG. 3 (3) shows one example, and FIG. 4 (4) shows another example. . FIG. 4 (1) is an overall perspective view, FIG. 4 (2) is an enlarged view of an example of the circularly illustrated portion of FIG. 1 (1), and FIG. 4 (3) is a view of (1). It is an enlarged view of another example of a circular illustration part. FIG. 6 is a schematic perspective view showing an example in which a honeycomb ventilation body for electromagnetic shielding is incorporated in a box-shaped structure.

The honeycomb ventilation body 7 for electromagnetic shielding is:
It has a predetermined honeycomb core 8 and an outer peripheral frame plate 9.
The honeycomb core 8 includes a main body portion 11 formed of a planar assembly of hollow columnar cells 10, and a compressed peripheral end portion 12 that is located on the outer peripheral side of the main body portion 11 and has a substantially plate-like shape in which the cells 10 are compressed and deformed. , And have conductivity. The outer peripheral frame plate 9 is in contact with and fixed to the outer peripheral surface of the compression peripheral end portion 12 of the honeycomb core 8, is assembled to the main body 11 via the compression peripheral end portion 12, and has conductivity.

The honeycomb ventilation body 7 for electromagnetic shielding will be described in more detail. First, the honeycomb core 8
It is composed of a planar assembly of a large number of hollow columnar cells 10 each partitioned into an independent space by a cell wall 13, and the cell wall 1
The cross-sectional shape of the cell 3 is typically a regular hexagon as shown in the figure, but may be a square, trapezoid, triangle, or other various shapes. As a material of the cell wall 13 and the honeycomb core 8, aluminum, an aluminum alloy, iron, or another metal is used and has conductivity. The honeycomb core 8 has excellent strength by weight, is lightweight, has high rigidity and strength, and has flatness accuracy, heat retention,
Characteristics such as excellent sound insulation and fluid rectification, and a large surface area per unit volume are known. Well, the main body 1
1, the honeycomb core 8 is used as it is.
Each of the cells 10 at the front, rear, left and right peripheral ends is compressed and deformed so as to be immersed, and is formed into a substantially plate shape. The outer peripheral frame plate 9 is in contact with and fixed to the front, rear, left and right side surfaces, that is, the outer peripheral surface of the compression peripheral end portion 12 of the honeycomb core 8, and is made of aluminum, an aluminum alloy, iron, or another metal plate. Become sexual. The outer peripheral frame plate 9 is made of an aggregate of four long plates in a linear flat plate shape, and may be formed integrally from the beginning, but may be connected and fixed afterwards.

Next, a description will be given of the honeycomb ventilation body 7 for electromagnetic shielding according to the first embodiment shown in FIGS. The honeycomb ventilation body 7 of the first embodiment has an open end face 14 at a boundary between the main body 11 and the compression peripheral end 12 of the honeycomb core 8.
A comb-shaped peripheral frame member 15 is covered from the side, and is fitted and fixed to each cell 10 in that portion.
The compressed peripheral end portion 12 is formed by compressing and deforming each cell 10 outside the above-described cell 10 into which the peripheral frame member 15 is inserted by the outer peripheral frame plate 9.

The honeycomb ventilation body 7 of the first embodiment will be described in more detail. First, as shown in FIG. 1A, the peripheral frame member 15 has a rectangular, square, or other frame shape, and has a comb shape with a number of teeth 16 provided at a lower portion. Then, as shown in FIG. 1A, the honeycomb core 8 is cut and prepared in a state where the compressed peripheral end portion 12 is not yet formed, and the teeth 1 of the comb-shaped peripheral frame member 15 are prepared.
It has a height corresponding to the height of the six portions, and has a front-rear and left-right length wider than the peripheral frame member 15 by a fixed length. Next, as shown in FIG.
Of the honeycomb core 8 has an open end face 14
It is covered coaxially from the direction, that is, at a position on the center side with a predetermined length on the outer peripheral side. Therefore, each tooth 16 of the peripheral frame member 15 is inserted into each corresponding cell 10 of the honeycomb core 8,
Fixed. (Note that such a peripheral frame member 15 and each tooth 1
6, each of the inserted cells 10 and the like is
Is a boundary between the main body 11 and the compression peripheral end 12. 1) Then, as shown in FIG. 1 (2), each cell 10 outside the cell 10 in which each tooth 16 of the peripheral frame member 15 is inserted is inserted into each of the front, rear, left and right peripheral frame plates 9 as described above. (In the illustrated example, the outer peripheral frame plate 9 is initially composed of four flat plates.) The outer peripheral frame plate 9 is pressed inward from the outside, and each tooth 16 of the peripheral frame material 15 is It is compressed and deformed while being sandwiched between the outer peripheral frame plates 9.

In this way, FIG. 2A and FIG.
The compression peripheral end portions 12 shown in the figures, (3) and the like are formed, and each outer peripheral frame plate 9 contacts and is fixed to the outer peripheral surface thereof. Each of the outer peripheral frame plates 9 has a height corresponding to the honeycomb core 8 and the like, and has a size sufficient to completely cover the outer peripheral surface of the compression peripheral end portion 12 thus formed. The outer peripheral frame plate 9 contacts and is fixed to the outer peripheral surface of the compressed peripheral end portion 12 of the honeycomb core 8 by connecting and fixing the four outer frame plates 9 by a mechanical method such as locking or the like, or by bonding. Or
Outer peripheral surface of compression peripheral end 12 of honeycomb core 8 and peripheral frame material 15
It is directly adhered to and fixed to the substrate, or both types are used together. In the example shown in FIG. 2C, between the compression peripheral end portion 12 of the honeycomb core 8 and the outer peripheral frame plate 9,
Intermediate members 17 such as tapes and adhesives having conductivity and deformability, elasticity, followability and adhesion to the outer peripheral surface of the compression peripheral end portion 12, or adhesives having conductivity are provided. Have been.

Next, a description will be given of a honeycomb ventilation body 7 for electromagnetic shielding according to the second embodiment shown in FIGS. The honeycomb ventilator 7 of the second embodiment has two open end faces 14 at the boundary between the main body 11 and the compression peripheral end 12 of the honeycomb core 8.
In addition, a thin peripheral frame member 18 is attached and fixed, and the compressed peripheral end portion 12 of the honeycomb core 8 is attached to the peripheral frame member 1.
Each cell 10 outside of 8 is formed by compressing and deforming the outer peripheral frame plate 9 from outside.

The honeycomb ventilation body 7 of the second embodiment will be described in more detail. First, the peripheral frame member 18 of the second embodiment
Are rectangles, squares, as shown in FIG.
It has a thin frame shape of other shapes, and two pieces are prepared. As shown in FIG. 3A, the honeycomb core 8 is prepared in a state in which the compressed peripheral end portion 12 is not yet formed, and the front, rear, left, right, and right sides are wider than the peripheral frame member 18 by a fixed length. Become with length. Next, as shown in FIG. 3 (2), both peripheral frame members 18 are connected to both open end surfaces 14 of the honeycomb core 8.
On the other hand, they are mounted and fixed coaxially, that is, at a central position having a predetermined length on the outer peripheral side. At this time, the example shown in FIG.
The interposer 19 such as a tape or an adhesive according to
8 and the opening end face 14 of the honeycomb core 8. (Note that the two peripheral frame members 18 and the corresponding cells 10 of the corresponding open end surfaces 14, etc.
Is a boundary between the main body 11 and the compression peripheral end 12. 3) Then, as shown in FIG. 3 (2), each cell 10 outside the position where the two peripheral frame members 18 are attached and fixed in this way is
However, the front and rear peripheral frame plates 9 (the peripheral frame plate 9 in the illustrated example is
Initially, a flat plate made of four flat plates is used).
It is compressed and deformed while being sandwiched between the outer peripheral frame plate 9 and the outer peripheral frame plate 9.

In this way, FIG. 4A and FIG.
The compression peripheral end portions 12 shown in the figures, (3) and the like are formed, and each outer peripheral frame plate 9 contacts and is fixed to the outer peripheral surface thereof. The size, connection and fixation of the outer peripheral frame plates 9, contact with the compression peripheral end portion 12, fixation, and the like are the same as those described in the first embodiment, and a description thereof will be omitted.
Similarly, the intermediary member 17 shown in FIG. 4 (3) is the same as that described in the first embodiment with reference to FIG. 2 (3), and a description thereof will be omitted.

The present invention is configured as described above.
Then, it becomes as follows. This honeycomb ventilation body 7 for electromagnetic shielding has a conductive honeycomb core 8 composed of a main body portion 11 and a compressed peripheral end portion 12, and a conductive member which is in contact with and fixed to the outer peripheral surface of the compressed peripheral end portion 12. And an outer peripheral frame plate 9. Further, FIGS. 4A and 4B of the first embodiment of FIG.
In the example shown in FIG. 3C of the second embodiment, an intermediary material 17 such as a tape or an adhesive having conductivity or deformability is disposed between the compression peripheral end portion 12 and the outer peripheral frame plate 9. Also, in the first embodiment of FIGS. 1 and 2 and the second embodiment of FIGS.
2 is obtained by compressing and deforming the cell 10 at each outer peripheral frame plate 9 using predetermined peripheral frame members 15 and 18. As shown in FIG. 6, for example, as shown in FIG. 6, the honeycomb ventilation body 7 has a ventilation hole or a ventilation hole of a conductive box-shaped structure A for electromagnetic shielding, which shields harmful radio waves inside and outside and stores a shielding target inside. It is used as an optical area, and an outer peripheral frame plate 9 is attached to an opening in a wall surface thereof while maintaining mutual conductivity. The honeycomb ventilation body 7 is formed in the cell axis direction of the honeycomb core 8 and both open end faces 1.
The harmful radio waves can be blocked between the inside and outside by turning the inside and outside to secure air permeability, ventilation and light transmission between the inside and outside, and having conductivity. Note that B in FIG. 6 is a door. Now, the honeycomb ventilation body 7 for electromagnetic shielding is as follows.

First, the honeycomb core 8 is made up of a planar assembly of hollow columnar cells 10 and has a porosity of about 90% or more. On the outer peripheral side of 8, a cell 10 is provided with a compression peripheral end portion 12 which is formed into a substantially plate-like shape by compressively deforming the cell. Become. That is, as in the above-described conventional example of FIG.
Open end face 4 of honeycomb core 2 having a porosity of about 90% or more
In the present invention, instead of crimping and fixing the outer peripheral frame plate 3 to the outer side, the outer peripheral side orthogonal to the opening end surface 14 (4), that is, the compression peripheral end portion 12 having a substantially plate shape is made substantially flat. The outer peripheral frame plate 9 is brought into contact with and fixed to the outer peripheral surface (for example, when compared on the drawing, the outer peripheral frame plate 3 of the related art is crimped and fixed from above and below, whereas the outer peripheral frame of the present invention is fixed. Plate 9 is
Contact and fixed from left and right). Therefore, the compression peripheral end 12
The honeycomb core 8 and the outer peripheral frame plate 9 are almost in surface contact, and the electrical contact area between them is extremely large. As in the above-described conventional example of FIG. The contact area can be obtained only about several% of the above, and the electrical contact area does not become insufficient, and the conductivity between the two is reliably and sufficiently secured.

Thus, in the honeycomb ventilator 7, the harmful radio waves between the inside and the outside can be reliably blocked by the honeycomb core 8 and the outer peripheral frame plate 9, both of which have conductivity and are mutually conductive, and have high electromagnetic shielding. Performance is obtained. Note that FIG.
As shown in FIG. 3 (3) and the example of FIG. 4 (3), between the compressed peripheral end portion 12 of the honeycomb core 8 and the outer peripheral frame plate 9, a tape or an adhesive having conductivity and deformability is used. When the intermediary material 17 is arranged, the outer peripheral surface of the compressed peripheral end portion 12 in which the unevenness remains, although slightly flattened, is further flattened, so that the electrical contact area between the two is reduced. It becomes wider and denser, and the conductivity between them and the electromagnetic shielding performance are further improved.

Secondly, such a first point can be easily realized by a simple structure in which a compressed peripheral end portion 12 obtained by compressively deforming the cell 10 is formed on the outer peripheral side of the honeycomb core 8. You. For example, as in the first embodiment of FIGS. 1 and 2 and the second embodiment of FIGS.
By compressing and deforming the cell 10 with the outer peripheral frame plate 9 while using the compression molding 8, the compression peripheral end portion 12 can be formed easily and easily. Moreover, unlike the conventional example of this type in FIG. 5 described above, the portion which is not related to the air permeability, which is an essential function, does not become large and large, and the first point described above is less wasteful. Is achieved.

First, the comb-shaped peripheral frame member 15 of the first embodiment described above and the two thin frame-shaped peripheral frame members 18 of the second embodiment are described.
About aluminum, aluminum alloy, iron,
If another metal is used to provide conductivity, the conductivity between the honeycomb core 8 and the outer peripheral frame plate 9 is further improved, and the electromagnetic shielding performance of the honeycomb ventilation body 7 is further improved.

Second, the comb-shaped peripheral frame member 15 of the first embodiment described above and the two thin frame-shaped peripheral frame members 18 of the second embodiment are
Each is fitted, fixed or attached to the honeycomb core 8,
The honeycomb ventilation body 7 remains fixed.
Has such peripheral frame members 15 and 18, but the present invention is not limited to this, and these may be removed afterwards. That is, these peripheral frame members 15,
18 may be used as a mere jig, and may be removed after the formation of the compressed peripheral end portion 12 so as not to remain in the honeycomb ventilation body 7.

Third, the intermediary members 17 and 19 used in the first and second embodiments have conductivity, and have deformability, elasticity, followability, and adhesiveness. Tapes, adhesives, conductive adhesives, etc. were used, but regardless of this, use only those that have no deformability, elasticity, followability, or adhesiveness. You may do so.

Fourth, as for the compression peripheral end portion 12 which is compressed and deformed and has a substantially plate shape, those of the above-described first and second embodiments are shown in FIGS. 2 (2) and (3). As shown in FIGS. 4 and 4 (2) and (3), the honeycomb core 8
Are compressed and deformed to about 1/5. However, the present invention is not limited to this. For example, one or five cells 10 on the outer peripheral side of the honeycomb core 8 may be compressed and deformed. or,
The compression deformation may be completely completed as compared with the illustrated example, and a small space may not be left. On the contrary, the degree of the compression deformation may be reduced as compared with the illustrated example, and the space may be left wider.

Fifthly, the outer peripheral frame plate 9 is attached to an electromagnetic shielding material on the outer side thereof, for example, an opening on the wall surface of the box-shaped structure A for electromagnetic shielding shown in FIG. In many cases, the cross-sectional shape of the outer peripheral frame plate 9 is L-shaped or U-shaped, or a mounting hole is formed in advance.

[0029]

As described above, in the honeycomb ventilation body for electromagnetic shielding according to the present invention, a compression peripheral end is formed on a honeycomb core, and an outer peripheral frame plate is brought into contact with an outer peripheral surface of the compression peripheral end. , Is fixed, so that a second aspect is provided.
In the above, an interposition material is arranged between the compression peripheral end portion and the outer peripheral frame plate. In the third and fourth aspects, the compression peripheral end portion is formed using a predetermined peripheral frame material, so that the following is achieved. It is effective.

First, high electromagnetic shielding performance is obtained.
That is, the honeycomb ventilation body for electromagnetic shielding does not cause anxiety in the conductivity between the honeycomb core and the outer peripheral frame plate as in the above-described conventional example, and the conductivity between the two is ensured. Sufficiently secured and high electromagnetic shielding performance can be obtained.

Secondly, the present invention is excellent in cost, for example, easily and easily with little waste. In other words, the honeycomb ventilation body for electromagnetic shielding has a simple structure and can be easily obtained, and, as in the above-described conventional example of this type, the honeycomb core and the outer peripheral frame plate are related to the air permeability which is an essential function. The missing parts are not large and large. As described above, the effects exhibited by the present invention are remarkable and large, for example, the problems existing in this type of conventional example are eliminated.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a honeycomb ventilation body for electromagnetic shielding according to the present invention. FIG. 1A is a perspective view showing a state before a peripheral frame material is covered on a honeycomb core, and FIG. FIG. 5 is a perspective view of a state before the honeycomb core is compressed and deformed by the outer peripheral frame plate.

FIG. 2 shows the first embodiment, and FIG.
FIG. 2B is an enlarged view of an example of a circular portion shown in FIG.
FIG. 3 (3) is an enlarged view of another example of the circle shown in FIG. 1 (1).

3A and 3B show a second embodiment of a honeycomb ventilation body for electromagnetic shielding according to the present invention. FIG. 1A is a perspective view of a state before a peripheral frame member is attached to a honeycomb core, and FIG. FIG. 3 is a perspective view of a state before the honeycomb core is compressed and deformed by the outer peripheral frame plate, and FIGS. 3C and 4D are longitudinal sectional views of main parts of FIG. 2B, and FIG. One example is shown, and FIG. 4D shows another example.

FIG. 4 shows the second embodiment, and FIG. 4 (1) is an overall perspective view,
FIG. 2B is an enlarged view of an example of a circular portion shown in FIG.
FIG. 3 (3) is an enlarged view of another example of the circle shown in FIG. 1 (1).

FIG. 5 is a front sectional view showing a conventional honeycomb air vent for electromagnetic shielding of this kind.

FIG. 6 is a schematic perspective view showing an example in which a honeycomb ventilation body for electromagnetic shielding is incorporated in a box-shaped structure.

[Explanation of symbols]

 1 Honeycomb vent (conventional example) 2 Honeycomb core (conventional example) 3 Peripheral frame plate (conventional example) 4 Opening end face (conventional example) 5 Upper and lower end portions 6 Ground 7 Honeycomb vent 8) Honeycomb core (of the present invention) 9 Peripheral frame plate (of the present invention) 10 Cell 11 main body 12 compression peripheral end 13 cell wall 14 opening end face (of the present invention) 15 peripheral frame material 16 Tooth 17 Intermediate material 18 Peripheral frame material 19 Intermediate material A Box-shaped structure B Door

Claims (4)

(57) [Claims] 1. A semiconductor device comprising: a main body portion formed of a planar assembly of hollow columnar cells; and a compression peripheral end portion which is located on the outer peripheral side of the main body portion and has a substantially plate-shaped compression deformed cell. And a peripheral frame plate, which is in contact with and fixed to the outer peripheral surface of the compression peripheral end of the honeycomb core, is assembled to the main body through the compression peripheral end, and has conductivity. A honeycomb ventilation body for electromagnetic shielding, comprising: 2. The honeycomb ventilation body for electromagnetic shielding according to claim 1, wherein a tape or an adhesive having conductivity and deformability is provided between a compression peripheral end portion of the honeycomb core and the outer peripheral frame plate. A honeycomb vent body for electromagnetic shielding, wherein an intermediary material such as an agent is provided. 3. The honeycomb ventilation body for electromagnetic shielding according to claim 1, wherein a boundary portion between the main body portion and the compression peripheral end portion of the honeycomb core is covered with a comb-shaped peripheral frame material from an opening end surface side. And fitted and fixed in each cell of the part,
The compression peripheral end portion of the honeycomb core is characterized in that each cell outside each of the cells in which the peripheral frame material is inserted is formed by compressing and deforming the outer peripheral frame plate from the outside. Honeycomb vents for electromagnetic shielding. 4. The honeycomb ventilation body for electromagnetic shielding according to claim 1, wherein thin peripheral frame members are attached to both open end faces at a boundary between the main body and the compression peripheral end of the honeycomb core. The electromagnetic core is fixed, and the compression peripheral end portion of the honeycomb core is formed by compressing each cell outside the peripheral frame material from the outside by the peripheral frame plate. Honeycomb vents for shielding.