JP7062903B2 - Board enclosure - Google Patents

Description

The present invention relates to a board enclosure configured by combining a plurality of sheet metal members so as to accommodate a board.

Patent Document 1 describes a fire protection enclosure composed of a combination of two sheet metal members (metal plates) arranged so as to sandwich a circuit board.

Japanese Unexamined Patent Publication No. 2004-103907

In recent years, there has been an increasing demand for fire protection levels for fire protection standards around substrates. That is, the size of the gap formed on the surface of the fire protection enclosure tends to be limited to smaller dimensions. In a fire protection enclosure made up of a combination of a plurality of sheet metals, a large gap is likely to occur between two adjacent sheet metals. Further, even when a part of the sheet metal is bent toward the inside of the fire protection enclosure for mounting the board, a large gap is likely to be generated around the part of the sheet metal. If the size of these gaps does not meet the new fire protection standard, a new sheet metal with a shape that conforms to the new fire protection standard must be prepared, and a great deal of labor and effort is required for sheet metal design and mold fabrication. Not only is it time consuming, but it is also disadvantageous in terms of cost. In addition, the same problem occurs when the fire protection standard differs depending on the destination of the fire protection enclosure.

An object of the present invention is to provide an enclosure for a substrate that can comply with a plurality of fire protection standards having different fire protection levels without requiring a great deal of labor and long time for sheet metal design and mold fabrication.

The substrate enclosure of the present invention is a substrate enclosure configured by combining a plurality of sheet metal members so as to accommodate a substrate, and a part of the sheet metal member is surrounded by the plurality of sheet metal members. An inner extending portion extending from the main body of the sheet metal member is formed toward the space, and between the main body of the sheet metal member and the inner extending portion, and of the sheet metal member. A gap is formed in at least one of the inner extending portion and the other sheet metal member to communicate the inner space and the outer space, and the gap is arranged so as to fill the gap. It has a gap filling member composed of at least one of a flammable resin and a metal.

According to this, since the gap filling member is a member different from the sheet metal member, the degree of freedom in shape is larger than that of the sheet metal member. Therefore, the gap filling member can be easily formed into various shapes. Therefore, since it is possible to manufacture a board enclosure that conforms to stricter fire protection standards using existing sheet metal members, it is possible to comply with a plurality of fire protection standards having different fire protection levels without requiring a great deal of labor and a long time.

In the present invention, it is preferable that the inner extending portion is connected to the main body of one of the sheet metal members via a bent portion as a mounting portion for mounting the substrate. This makes it possible to mount the substrate on the mounting portion of one sheet metal member.

Further, from another viewpoint, the substrate enclosure of the present invention is a substrate enclosure configured by combining a plurality of sheet metal members so as to accommodate a substrate, and is adjacent to one sheet metal member and one sheet metal member. At least one of a flame-retardant resin and a metal formed between the other sheet metal members and arranged so as to fill a gap connecting the external space and the internal space surrounded by the plurality of sheet metal members. The other sheet metal member has a corner portion extending in one direction, and the one sheet metal member has a wall erected in the one direction. The other sheet metal member has a portion, and the other sheet metal member is arranged so as to stand in the one direction on the bottom surface surrounded by the wall portion of the one sheet metal member. A notch is formed at the end of the corner of the one sheet metal member facing the bottom surface, and the gap is formed between the notch and the bottom surface .

According to this, since the gap filling member is a member different from the sheet metal member, the degree of freedom in shape is larger than that of the sheet metal member. Therefore, the gap filling member can be easily formed into various shapes. Therefore, since it is possible to manufacture a board enclosure that conforms to stricter fire protection standards using existing sheet metal members, it is possible to comply with a plurality of fire protection standards having different fire protection levels without requiring a great deal of labor and a long time. Further, when another sheet metal member is erected on the bottom surface of one sheet metal member and combined, the gap between the notch formed at the end of the corner and the bottom surface is filled with the gap filling member. It becomes possible.

Further, from another viewpoint, the substrate enclosure of the present invention is an enclosure for a substrate configured by combining a plurality of sheet metal members so as to accommodate a substrate, and is adjacent to one sheet metal member and one sheet metal member. At least one of a flame-retardant resin and a metal formed between the other sheet metal members and arranged so as to fill a gap communicating the external space and the internal space surrounded by the plurality of sheet metal members. On the other hand, it has a configured gap filling member, and the other sheet metal member is arranged on one surface of the one sheet metal member so as to stand upright in one direction intersecting the one surface. The one sheet metal member is connected to a wall portion connected to an end portion of the one surface and erected in one direction, and is connected to a connection region which is one region of the wall portion and faces the one surface. It has a locking portion, and at the end of the other sheet metal member facing the one surface of the one sheet metal member, a contact region in contact with the one surface and a separation separated from the one surface are provided. A region is formed, and the other sheet metal member has a locked portion extending from the separated region in a direction in which the locked portion can be locked, and the gap is the separated region. It is formed between the end of the locked portion and the one surface in the extending direction of the . According to this, since the gap filling member is a member different from the sheet metal member, the degree of freedom in shape is larger than that of the sheet metal member. Therefore, the gap filling member can be easily formed into various shapes. Therefore, since it is possible to manufacture a board enclosure that conforms to stricter fire protection standards using existing sheet metal members, it is possible to comply with a plurality of fire protection standards having different fire protection levels without requiring a great deal of labor and a long time. Further , it is formed when another sheet metal member is erected on one surface of one sheet metal member and combined while locking the locked portion of another sheet metal member to the locking portion of one sheet metal member. It is possible to fill the gap with a gap filling member.

Further, in the present invention, a plurality of the gaps are formed between the other sheet metal member and the one sheet metal member, and the gap filling member is arranged so as to fill the plurality of gaps. It is preferable to have. This makes it possible to easily fill a plurality of gaps with a gap filling member.

Further, in the present invention, the substrate is attached to the one sheet metal member, and a part of the gap filling member is sandwiched between the substrate and the one sheet metal member. It is preferable that it is positioned with respect to. As a result, the gap filling material is positioned with respect to one sheet metal member, so that the gap can be reliably filled.

According to the board enclosure of the present invention, since the gap filling member is a member different from the sheet metal member, the degree of freedom in shape is larger than that of the sheet metal member. Therefore, the gap filling member can be easily formed into various shapes. Therefore, since it is possible to manufacture a board enclosure that conforms to stricter fire protection standards using existing sheet metal members, it is possible to comply with a plurality of fire protection standards having different fire protection levels without requiring a great deal of labor and a long time.

An enclosure for a substrate according to an embodiment of the present invention is shown, (a) is a perspective view when viewed from diagonally above the front left, and (b) is a perspective view when viewed from diagonally above the front right. be. It is an exploded perspective view of the enclosure for a substrate shown in FIG. It is a perspective view which shows the situation when the sheet metal member is removed in the board enclosure shown in FIG. 1 (a). It is a perspective view of one of the two plate-shaped members shown in FIG. 1. The other plate-shaped member of the two plate-shaped members shown in FIG. 1 is shown, (a) is a perspective view, and (b) is a partially enlarged view. (A) is a perspective view showing the state of the gap formed when the gap filling member of the M1 portion shown in FIG. 1 (b) is removed, and (b) is a perspective view showing the gap of the M2 portion shown in FIG. 1 (b). It is a perspective view which shows the state of the gap formed when the filling member is removed, and (c) shows the state of the gap formed when the gap filling member of the M3 portion shown in FIG. 1 (b) is removed. It is a perspective view. (A) is a perspective view showing the state of the gap formed when the gap filling member of the M4 portion shown in FIG. 1 (a) is removed, and FIG. 7 (b) shows the gap filled in the gap in FIG. 7 (a). It is a perspective view which shows the situation which is filled with a member. (A) is a perspective view showing the state of the gap formed when the gap filling member of the M5 portion shown in FIG. 1 (a) is removed, and FIG. It is a perspective view which shows the situation which is filled with a member. (A) is a perspective view of the gap filling member of the M1 portion shown in FIG. 1 (b), and (b) is a perspective view of the gap filling member of the M2 portion shown in FIG. 1 (b). 1 shows a gap filling member for filling the gap of the M3 to M5 portion shown in FIG. 1, (a) is a perspective view when viewed from diagonally above the front left, and (b) is a perspective view seen from diagonally above the front right. It is a perspective view when viewed.

Hereinafter, the board enclosure 1 according to the embodiment of the present invention will be described. As shown in FIGS. 1 to 3, the board enclosure 1 is mainly composed of two sheet metal members 10 and 20 so as to accommodate the board 100 (see FIG. 2). As shown in FIG. 2, the substrate 100 in the present embodiment has a plurality of electronic components 100b including a power supply circuit mounted on the surface 100a facing the sheet metal member 20, and the periphery thereof is surrounded by the substrate enclosure 1. , The prescribed fire protection standards are met.

The board enclosure 1 comprises an internal space S surrounded by two sheet metal members 10 and 20. The substrate 100 is arranged in this internal space S. In the present embodiment, the vertical direction A shown in FIG. 1, the front-rear direction B orthogonal to the vertical direction A, the vertical direction A, and the left-right direction C orthogonal to the front-back direction B will be described below as a reference.

One of the two sheet metal members 10 and 20 (one sheet metal member) has a plate-shaped main body 11 extending in the vertical direction A and the front-rear direction B as shown in FIGS. 1 and 4. It has a plate-shaped bottom portion 12 extending from the lower end of the main body 11 in the front-rear direction B and the left-right direction C, and a plate-shaped front portion 13 extending in the vertical direction A and the left-right direction C from the front end of the main body 11. ing. In the sheet metal member 10 of the present embodiment, a member whose main body 11 and front portion 13 are made of one metal plate by sheet metal and a member whose bottom portion 12 is made of another metal plate by sheet metal are connected to each other. It consists of being done. As a modification, the main body 11, the bottom portion 12, and the front portion 13 may be formed of a single metal plate by sheet metal.

As shown in FIG. 4, two inner extending portions 14 and 15 arranged apart from each other in the front-rear direction B are formed on the upper portion of the main body 11. These two inner extending portions 14 and 15 are connected to the main body 11 via bent portions 17 and 18 as mounting portions for attaching the substrate 100 to the main body 11. These inner extending portions 14 and 15 both have horizontal portions 14a and 15a extending to the left from the bent portions 17 and 18 and vertical portions 14b and 15b extending upward from the left end of the horizontal portions 14a and 15a. Have. Holes 14c and 15c penetrating in the left-right direction C are formed in the vertical portions 14b and 15b. Then, in a state where the vertical portions 14b and 15b are in contact with the substrate 100 on the surface opposite to the main body 11, screws are screwed into the holes 14c and 15c from the substrate 100 side so that the substrate 100 becomes the vertical portion 14b. , 15b. Guide pieces 15d and 15e for positioning the rear upper corner portion of the substrate 100 are formed at the upper end and the rear end of the vertical portion 15b.

Further, as shown in FIG. 4, an inner extending portion 16 is formed in front of the lower portion of the main body 11 so as to be separated from the inner extending portion 14 in the vertical direction A. The inner extending portion 16 is also connected to the main body 11 via a bent portion 19 as a mounting portion for attaching the substrate 100 to the main body 11. These inner extending portions 16 both have a horizontal portion 16a extending to the left from the bent portion 19 and a vertical portion 16b extending downward from the left end of the horizontal portion 16a. A hole 16c similar to the hole 14c is formed in the vertical portion 16b. The substrate 100 can be attached to the vertical portion 16b by screwing a screw into the hole 16c from the substrate 100 side in a state where the vertical portion 16b is in contact with the substrate 100 on the surface opposite to the main body 11. Further, guide pieces 16d and 16e for positioning the front lower corner portion of the substrate 100 are formed at the lower end and the front end of the vertical portion 16b.

At the upper end of the main body 11, a plurality of projecting pieces 11a formed by being bent to the left are formed. The inner sheet metal member 30 shown in FIG. 2 is attached to the inner surface 11b of the main body 11 between the main body 11 and the substrate 100. As shown in FIG. 2, a protruding piece 31 formed by being bent to the left is formed at the upper end portion of the inner sheet metal member 30. The protruding piece 11a of the main body 11 positions the upper end position of the inner sheet metal member 30 by engaging the protruding piece 31.

The front portion 13 is the front end of the main body 11 and extends upward from a position slightly below the center of the vertical direction A. The bottom portion 12 has a bottom surface 12a on which the sheet metal member 20 is erected. A wall portion 12b is formed on the peripheral edge of the bottom surface 12a so as to surround the bottom surface 12a and stand upright in the vertical direction A. By forming the wall portion 12b on the bottom surface 12a of the bottom portion 12 in this way, it is possible to prevent the bottom surface 12b from spreading to the surroundings even if a liquid such as an electrolytic solution overflows on the bottom surface 12b. As shown in FIG. 4, a locking portion 12c is formed on the wall portion 12b on the left side of the bottom surface 12a and facing the bottom surface 12a while being separated from the bottom surface 12a at substantially the center of the wall portion 12b in the front-rear direction B. ing. The locking portion 12c is connected to the upper end of the protruding portion 12b1 (connection region) in which the wall portion 12b partially protrudes upward.

The other sheet metal member 20 (the other sheet metal member) of the two sheet metal members 10 and 20 has a main body 21, an upper portion 22, a front portion 23, and a rear portion as shown in FIGS. 2 and 5 (a). It has 24 and. In the sheet metal member 20 in the present embodiment, the main body 21, the upper portion 22, the front portion 23, and the rear portion 24 are composed of one metal plate by sheet metal, but one sheet metal member is formed by connecting a plurality of metal plates. 20 may be configured.

The main body 21 has a protruding portion 21a protruding to the left. The protrusion 21a is connected to the upper plane 21a1 extending in the front-rear direction B, the left plane 21a2 connected to the left end of the upper plane 21a1 and extending in the vertical direction A and the front-rear direction B, and the front end of the left plane 21a2. It has a front plane 21a3 extending in the direction A and a rear plane 21a4 connected to the rear end of the left plane 21a2 and extending in the vertical direction A. As shown in FIG. 5A, the protruding portion 21a is composed of a left plane 21a2 and a front plane 21a3, and includes a corner portion 21a5 extending along the vertical direction A, and a left plane 21a2 and a rear plane 21a4. It is configured and has a corner portion 21a6 extending along the vertical direction A. A notch 21b is formed in the lower portion of the corner portion 21a5 of the protruding portion 21a. The cutout portion 21b is formed to prevent buffering of the bottom portion 12 with the wall portion 12b when the sheet metal member 20 is erected on the bottom surface 12a as shown in FIG. 1 (a).

Further, as shown in FIG. 5, a locked portion 21c is formed in the lower portion of the left plane 21a2. The locked portion 21c is configured by bending a part of the lower end of the left plane 21a1 so as to project to the left. Most of the lower end of the left plane 21a2 comes into contact with the bottom surface 12a when the sheet metal member 20 is erected on the bottom surface 12a. That is, as shown in FIG. 5B, a contact region 21a6 in contact with the bottom surface 12a and a separation region 21a7 separated from the bottom surface 12a exist at the lower end of the left plane 21a2. The locked portion 21c is formed so as to extend to the left (that is, a direction in which the locking portion 12c can be locked) from the separated region 21a7 of the left plane 21a2.

The upper portion 22 has a vertical surface 22a extending in the vertical direction A and the front-rear direction B, and a horizontal plane 22b connected to the upper end of the vertical surface 22a and extending in the front-rear direction B and the left-right direction C. A notch 22a1 is formed in the upper rear portion of the vertical surface 22a. Further, the upper portion 22 further has a bent surface 22c which is bent along the notch portion 22a1 of the vertical surface 22a and the rear end edge of the vertical surface 22a and connected to the rear end of the horizontal plane 22b.

The front portion 23 is composed of a plane extending in the vertical direction A and the horizontal direction C connected to the front end of the main body 21. The front portion 23 extends from the lower end to the central portion of the main body 21 in the vertical direction A. Further, a notch 25a is formed in the lower portion of the corner portion 25 extending in the vertical direction A formed by the main body 21 and the front portion 23. The notch portion 25a is formed to prevent the sheet metal member 20 from cushioning with the wall portion 12b of the bottom portion 12 when the sheet metal member 20 is erected on the bottom surface 12a, similarly to the notch portion 21b described above. As shown in FIG. 2, the rear portion 24 is composed of a plane extending in the vertical direction A and the horizontal direction C connected to the rear end of the main body 21.

When the board enclosure 1 is configured, the board 100 is attached to the sheet metal member 10 to which the inner sheet metal member 30 is attached in advance. Then, as shown in FIG. 1, the sheet metal member 20 is arranged so as to be erected on the bottom surface 12a of the sheet metal member 10, and the sheet metal is formed on the locking portion 12c of the sheet metal member 10 so that the internal space S is formed. The two sheet metal members 10 and 20 are assembled while locking the locked portion 21c of the member 20. In this case, the substrate enclosure 1 has eight gaps 51 to 58 as shown in FIGS. 1, 4, 6 to 8. These gaps 51 to 58 are relatively large gaps, and may not fall within the range of the fire protection standard when the demand for the fire protection level is high. Therefore, the substrate enclosure 1 in the present embodiment has three gap filling members 60, 70, 80 made of a flame-retardant resin material for filling the gaps 51 to 58. The gap filling members 60, 70, 80 in the present embodiment are made of a resin material that meets the V-1 standard in the UL94 standard, which is one of the flame retardancy standards, but is V-0 or higher in the UL94 standard. It may be composed of a resin material or a metal material having flame retardancy.

The gap 51 is the front upper portion of the board enclosure 1, and as shown in FIG. 6A, the gap 51 is between the inner extending portion 14 and the main body 11 of the sheet metal member 10 and the inner extending portion 14 and the sheet metal member 20. It is formed between the horizontal plane 22b and the horizontal plane 22b. The gap 52 is a rear upper portion of the board enclosure 1 and is formed between the inner extending portion 15 of the sheet metal member 10 and the main body 11 as shown in FIG. 6 (b). The gap 53 is the front lower portion of the board enclosure 1, and as shown in FIG. 6C, the gap 53 is between the inner extending portion 16 and the bottom surface 12a of the sheet metal member 10 and the inner extending member 16 and the sheet metal member 20. It is formed between the front portion 23 and the front portion 23 of the. The gap 54 is a lower front portion of the board enclosure 1 and is formed between the inner extending portion 16 of the sheet metal member 10 and the main body 11 as shown in FIG.

The gap 55 is located near the center of the front-rear direction B in the lower left portion of the board enclosure 1, and as shown in FIG. 7A, the front end of the locked portion 21c of the sheet metal member 20 and the bottom surface of the sheet metal member 10. It is formed between 12a and 12a. As shown in FIG. 1A, the gap 56 is formed behind the gap 55 between the rear end of the locked portion 21c of the sheet metal member 20 and the bottom surface 12a of the sheet metal member 10. As shown in FIG. 8A, the gap 57 is formed between the cutout portion 21b of the sheet metal member 20 and the bottom surface 12a of the sheet metal member 10. As shown in FIG. 1A, the gap 58 is formed between the notch 25a of the sheet metal member 20 and the bottom surface 12a of the sheet metal member 10 in substantially the same manner as the gap 57.

The gap filling member 60 is a member for filling the gap 51. The gap filling member 60 includes a horizontal portion 61, a vertical portion 62 extending downward from the right end of the horizontal portion 61, and an extending portion 63 extending rearward from the rear end of the connection portion between the horizontal portion 61 and the vertical portion 62. And have. The horizontal portion 61 has a wall portion 61a that protrudes upward from the left end and the rear end of the horizontal portion 61 and extends along the left end and the rear end. The vertical portion 62 has a wall portion 62a extending to the right and upward from the rear end of the vertical portion 62. The extending portion 63 has a wall portion 63a that protrudes upward from the left end of the extending portion 63 and extends along the left end. These three wall portions 61a to 63a are connected to each other. The vertical portion 62 is formed with a notch portion 62b for passing the end portion of a screw for attaching the substrate 100 to the inner extending portion 14. A wall portion 62c projecting to the right is formed at the lower end of the vertical portion 62. The horizontal portion 61, the vertical portion 62, and the extending portion 63 are formed in a shape capable of filling the gap 51.

The gap filling member 70 is a member for filling the gap 52. The gap filling member 70 has a horizontal portion 71 and a vertical portion 72 extending downward from the right end of the horizontal portion 71. The vertical portion 72 is formed with a notch portion 72a for passing the end portion of a screw for attaching the substrate 100 to the inner extending portion 15. The horizontal portion 71 and the vertical portion 72 are formed in a shape capable of filling the gap 52.

The gap filling member 80 is a member for filling the six gaps 53 to 58. As shown in FIG. 10, the gap filling member 80 includes seven horizontal members 81a to 81g extending along the left-right direction C, six vertical members 82a to 82f extending along the front-rear direction B, and vertical members 82a to 82f. It has five plate-shaped members 83a to 83e formed so as to project upward from the member 82a, and these horizontal members 81a to 81g and vertical members 82a to 82f are connected to each other to form a frame shape.

As shown in FIG. 10, the vertical member 82a is arranged on the far right side and is connected to the right end of the seven horizontal members 81a to 81g. The front portion 82a1 of the vertical member 82a is configured to be bent to the left in a staircase shape so that a part of the gap 53 can be filled when the gap filling member 80 is installed on the bottom surface 12a. ing. The plate-shaped member 83a is a front end of the vertical member 82a and is formed at a connecting portion between the vertical member 82a and the horizontal member 81a. The plate-shaped member 83a is provided up and down so that when the gap filling member 80 is installed on the bottom surface 12a, the other portion of the gap 53 (the portion not filled by the front portion 82a1 of the gap 53) can be filled. It is formed so as to extend along the direction A and the left-right direction C.

As shown in FIG. 10, the plate-shaped member 83b is formed in the vicinity of the front portion 82a1 of the vertical member 82a. The plate-shaped member 83b has a first portion 83b1 and a second portion 83b2. The first portion 83b1 is a plate-shaped portion extending along the vertical direction A and the front-rear direction B. The second portion 83b2 is a plate-shaped portion connected to the front end of the first portion 83b1 and extending along the vertical direction A and the horizontal direction C. That is, the first portion 83b1 and the second portion 83b2 are formed orthogonally to each other. Further, the plate-shaped member 83b is formed with a first portion 83b1 and a second portion 83b2 so that the gap 54 can be filled when the gap filling member 80 is installed on the bottom surface 12a.

The plate-shaped member 83c and the plate-shaped member 83d are arranged between the central portion of the vertical member 82a in the front-rear direction B and the front portion 82a1, and both are formed so as to extend along the vertical direction A and the horizontal direction C. Has been done.

The plate-shaped member 83e is arranged in the vicinity of the rear portion of the vertical member 82a in the front-rear direction B, and is formed so as to extend along the vertical direction A and the front-rear direction B. Further, as shown in FIG. 10A, a plate-shaped portion 83e1 having substantially the same shape as the plate-shaped member 83c is formed in the center of the plate-shaped member 83e in the front-rear direction B. A notch 83c1 is formed in the plate-shaped member 83c. Further, the plate-shaped portion 83e is also formed with a notch portion 83e2 similar to the notch portion 83c1. These notched portions 83c1 and 83e2 have a back surface 100c (opposite to the surface 100a) facing the inner surface 11b of the substrate 100 when the substrate 100 is attached to the sheet metal member 10 with the gap filling member 80 arranged on the bottom surface 12a. Contact with the side surface). Therefore, the gap filling member 80 is positioned at a predetermined position on the bottom surface 12a.

The vertical member 82b is a member that connects the horizontal member 81a and the horizontal member 81b. The vertical member 82c is a member that connects the horizontal member 81b and the horizontal member 81c. The vertical member 82d is a member that connects the left end of the horizontal member 81c and the left end of the horizontal member 81d. The vertical member 82e is a member that connects the horizontal member 81d, the left end of the horizontal member 81e, and the left end of the horizontal member 81f. The vertical member 82f is a member that connects the horizontal member 81f and the left end of the horizontal member 81g.

The horizontal member 81b has a length in the left-right direction C so that the left end portion 81b1 thereof is arranged in the vicinity of the gap 57 when the gap filling member 80 is installed on the bottom surface 12a. Further, as shown in FIGS. 8B and 10, the left end portion 81b1 of the horizontal member 81b is upward from the left end portion 81b1 so that the gap 57 can be covered and filled with the left end portion 81b1. Has a protrusion 81b2 protruding from the surface.

Similar to the horizontal member 81b, the horizontal member 81a has a length in the left-right direction C so that the left end portion 81a1 is arranged in the vicinity of the gap 58 when the gap filling member 80 is installed on the bottom surface 12a. Have. Further, the left end portion 81a1 of the horizontal member 81a has a protrusion 81a2 protruding upward from the left end portion 81a1 so as to be able to cover and fill the gap 58 with the left end portion 81a1.

The horizontal member 81c has a length in the left-right direction C so that the left end thereof is arranged in the gap 55 when the gap filling member 80 is installed on the bottom surface 12a. Further, as shown in FIG. 10, the horizontal member 81c has a protrusion 81c2 protruding upward from the left side portion 81c1 from the position where the vertical member 82c is connected to the left end. As a result, as shown in FIG. 7B, the gap 55 is filled with the left side portion 81c1 and the protrusion 81c2 of the horizontal member 81c.

Similar to the horizontal member 81c, the horizontal member 81d also has a length in the left-right direction C so that the left end thereof is arranged in the gap 56 when the gap filling member 80 is installed on the bottom surface 12a. .. Further, as shown in FIG. 10, the horizontal member 81d has a protrusion 81d2 protruding upward from the left side portion 81d1 from the position where the vertical member 82e is connected to the left end. As a result, the gap 56 is filled by the left side portion 81d1 and the protrusion 81d2 of the horizontal member 81d, similarly to the horizontal member 81c.

As described above, according to the board enclosure 1 of the present embodiment, since the gap filling members 60, 70, 80 are different members from the sheet metal members 10, 20, the gap filling members 60, 70, 80 are compared with the sheet metal members 10, 20. Great degree of freedom in shape. Therefore, the gap filling members 60, 70, 80 can be easily formed into various shapes. Therefore, since it is possible to manufacture a board enclosure 1 that conforms to stricter fire protection standards using existing sheet metal members 10 and 20, it conforms to a plurality of fire protection standards having different fire protection levels without requiring a great deal of labor and a long time. It will be possible. That is, even if the fire protection standard differs depending on the destination of the fire protection enclosure, it is possible to easily deal with it.

Further, the inner extending portions 14 to 16 for mounting the substrate 100 are connected to the main body 11 (sheet metal member 10) via the bent portions 17 to 19. This makes it possible to attach the substrate 100 to the sheet metal member 10.

Further, when the sheet metal member 20 is erected on the bottom surface 12a of the sheet metal member 10 and combined, a gap 57 is provided between the notches 21b, 25a formed at the ends of the corner portions 21a5 and 25 and the bottom surface 12a. Even if the gaps 57 and 58 are generated, the gaps 57 and 58 can be filled with the gap filling member 80.

Further, when the sheet metal member 20 is erected on the bottom surface 12a of the sheet metal member 10 while the locked portion 21c of the sheet metal member 20 is locked to the locking portion 12c of the sheet metal member 10, the sheet metal member 20 is combined. There are gaps 55 and 56 between the front end of the locked portion 21c and the bottom surface 12a of the sheet metal member 10 and between the rear end of the locked portion 21c of the sheet metal member 20 and the bottom surface 12a of the sheet metal member 10. Also, the gaps 55 and 56 can be filled with the gap filling member 80.

Further, the gap filling member 80 is arranged on the bottom surface 12a so as to fill the six gaps 53 to 58 formed by combining the sheet metal members 10 and 20. Therefore, the six gaps 53 to 58 can be easily filled with the gap filling member 80.

Further, the gap filling member 80 is sandwiched between the substrate 100 and the sheet metal member 10 and positioned on the bottom surface 12a. As a result, the gap filling material 80 is positioned with respect to the sheet metal member 10, so that the gaps 53 to 58 can be reliably filled.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made as long as it is described in the claims. For example, in the above-described embodiment, the substrate enclosure 1 formed by combining the two sheet metal members 10 and 20 has eight gaps 51 to 58, and any one of these eight gaps 51 to 58 is present. May only exist. In this case, the board enclosure 1 may have any of the three gap filling members 60, 70, 80 in order to fill the gap. Further, the gap filling member at this time may be composed of only a portion for filling the gap. That is, when only the gaps 53 and 54 are present in the board enclosure 1, the gap filling member (including the plate-shaped members 83a and 83b) formed by the front portion 82a1 of the gap filling member 80 may be used.

Further, the gaps 51 to 58 in the present embodiment are cuts formed to prevent gaps formed by bending the sheet metal member 10 for mounting the substrate 100 and buffering when the two sheet metal members 10 and 20 are combined. The gap due to the notches 21b and 25a and the gap due to the structure for locking the two sheet metal members 10 and 20 to each other may be a gap having a shape other than these, and the shape constituting the gap is particularly limited. It's not a thing. Further, the gap filling member 80 does not have to be sandwiched between the substrate 100 and the plate-shaped member 10 and not positioned on the bottom surface 12a.

1 Enclosure for board 10 Sheet metal member (one sheet metal member)
11 Main body 12a Bottom surface 12b Wall part 12b1 Protruding part (connection area)
12c Locking part 14 to 16 Inner extending part 17 to 19 Bending part 20 Sheet metal member (other sheet metal member)
21a5, 25 Square portion 21a6 Contact region 21a7 Separation region 21b, 25a Notch portion 21c Locked portion 51 to 58 Gap 60, 70, 80 Gap filling member 100 Board S Internal space

Claims (6)

In a board enclosure composed of a combination of multiple sheet metal members that can accommodate a board.
A part of the sheet metal member has an inner extending portion extending from the main body of the sheet metal member toward the internal space surrounded by the plurality of sheet metal members.
The inside of at least one of the main body of the sheet metal member and the inner extending portion, and between the inner extending portion of the sheet metal member and the other sheet metal member. A gap is formed to communicate the space and the external space,
An enclosure for a substrate, characterized by having a gap filling member configured to fill at least one of a flame retardant resin and a metal, which is arranged so as to fill the gap. The enclosure for a board according to claim 1, wherein the inner extending portion is connected to the main body of one sheet metal member via a bent portion as a mounting portion for mounting the board. In a board enclosure composed of a combination of multiple sheet metal members that can accommodate a board.
Arranged so as to fill a gap formed between the one sheet metal member, the one sheet metal member and the adjacent other sheet metal member, and communicating the external space and the internal space surrounded by the plurality of sheet metal members. It has a gap filling member constructed of at least one of a flame-retardant resin and a metal .
The other sheet metal member has a corner portion extending in one direction and has a corner portion extending in one direction.
The one sheet metal member has a wall portion erected in the one direction.
The other sheet metal member is arranged so as to stand in the one direction on the bottom surface surrounded by the wall portion of the one sheet metal member.
A notch is formed at the end of the corner of the other sheet metal member facing the bottom surface of the one sheet metal member.
The enclosure for a substrate, characterized in that the gap is formed between the notch and the bottom surface . In a board enclosure composed of a combination of multiple sheet metal members that can accommodate a board.
Arranged so as to fill a gap formed between the one sheet metal member, the one sheet metal member and the adjacent other sheet metal member, and communicating the external space and the internal space surrounded by the plurality of sheet metal members. It has a gap filling member constructed of at least one of a flame-retardant resin and a metal.
The other sheet metal member is arranged so as to stand on one surface of the one sheet metal member in one direction intersecting the one surface.
The one sheet metal member is connected to a wall portion connected to an end portion of the one surface and erected in one direction, and is connected to a connection region which is one region of the wall portion and faces the one surface. It has a stop and
At the end of the other sheet metal member facing the one surface of the one sheet metal member, a contact region in contact with the one surface and a separation region separated from the one surface are formed. The sheet metal member of No. 1 has a locked portion extending from the separation region in a direction in which the locking portion can be locked.
The enclosure for a substrate is characterized in that the gap is formed between the end portion of the locked portion in the extending direction of the separation region and the one surface. A plurality of the gaps are formed between the other sheet metal member and the one sheet metal member.
The board enclosure according to claim 3 or 4 , wherein the gap filling member is arranged so as to fill the plurality of gaps. The substrate is attached to the one sheet metal member, and the substrate is attached to the one sheet metal member.
The board enclosure according to claim 5 , wherein a part of the gap filling member is sandwiched between the substrate and the one sheet metal member and is positioned with respect to the one sheet metal member. ..

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