JP2008269111A - Electronic equipment storage box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic equipment storage box for significantly reducing the noise of electronic equipment. <P>SOLUTION: A first face 13 of a box body 12 is closed with an auxiliary box body 14. A storage space 32 is connected through a vent hole 22 and an auxiliary space 47 and an opening 28 to open air. The leakage of an operating sound is prevented by a noise-proof wall or noise-proof body 26 of the box body 12. On the other hand, the operating sound leaks from the opening 28 to the auxiliary space 47. The leakage of the operating sound is prevented by the noise-proof wall of the auxiliary space 47. The operating sound in the auxiliary space 47 leaks from the vent hole 22 to the outside. The passage of the operating sound is regulated, thereby the leaking operating sound is reduced. Especially, the vent hole 22 is faced to the noise-proof wall body 26. The operating sound leaking from the opening 28 collides with the wall body of the auxiliary box body 21. The transmission of the operating sound is suppressed. The noise is surely reduced. Furthermore, the circulation of an air flow is secured by the auxiliary space 47 and the vent hole 22. Open air is surely introduced to the storage space 32. Electronic equipment 75 is effectively cooled. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic device storage box that stores an electronic device such as a server computer.

Rack mount server computers are widely known. In the server computer, for example, semiconductor elements on the printed circuit board generate heat. For cooling the semiconductor element, for example, a cooling fan is incorporated in the housing of the server computer.
JP 2007-65901 A Japanese Utility Model Publication No. 5-38697 JP 2004-331185 A JP-A-53-9421

  A large number of server computers are mounted on one rack. A collection of server computers generates noise. As a result of such noise, the location of the server computer is limited.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an electronic device storage box that can greatly contribute to a reduction in noise of the electronic device.

  In order to achieve the above object, according to the first invention, a box body that partitions a storage space sandwiched between a first surface and a second surface and opened by the first surface and the second surface with a soundproof wall, and a box A soundproof wall that is supported by the body and that extends along the first surface, and is connected to the box to block the first surface of the box, and the auxiliary space adjacent to the storage space is partitioned by the soundproof wall with the soundproof wall interposed therebetween An auxiliary box body, an opening formed in the soundproof wall body to spatially connect the storage space and the auxiliary space, and a vent formed in the auxiliary box body at a position facing the soundproof wall body An electronic device storage box is provided.

  In this electronic device storage box, the electronic device is stored in a box. The electronic device is mounted in the storage space from the opened first surface or second surface. The first surface is closed with an auxiliary box. The storage space is connected to the outside air through the vent, the auxiliary space, and the opening. When the electronic device is activated, the electronic device generates an operating sound. Box-shaped soundproof walls and soundproof walls prevent leakage of operating sound. On the other hand, the operating sound leaks from the opening to the auxiliary space on the first surface of the box. The soundproof wall in the auxiliary space prevents leakage of operating sound. The operating sound in the auxiliary space leaks out from the vent. Since the passage of the operation sound is restricted, the operation sound leaking out is restricted. Noise is reduced. In particular, the vent is opposed to the soundproof wall. In other words, the position of the vent is shifted from the opening. The operating sound leaking from the opening collides with the wall of the auxiliary box. Thus, the transmission of the operating sound can be effectively suppressed. Noise is reliably reduced. In addition, in this electronic device storage box, airflow is ensured in the opening on the first surface of the box, the auxiliary space, and the vent. Outside air can be reliably introduced into the storage space. As a result, the electronic device can be effectively cooled.

  The soundproof wall of the box or the soundproof wall of the auxiliary box may be made of a sound insulating material. Sound insulation blocks sound transmission. In this way, leakage of operating noise is prevented. A sound absorbing material may be attached to the inner surface of the box or the inner surface of the auxiliary box. The sound absorbing material absorbs sound. Thus, the operating noise leaking from the vent is reduced.

  The electronic device storage box may include a soundproof wall body and an auxiliary box body, and may include a door body that is openably and closably connected to the box body. Thus, the soundproof wall and the auxiliary box can be easily opened and closed. Maintenance of electronic devices can be realized easily in the box.

  In addition, the electronic device storage box is formed on one of the box and the door around the storage space, and is formed on the other of the box and the door around the storage space and meshed with the step. You may provide a protruding piece. When the door is closed, the projecting piece is engaged with the step between the door and the box. The gap between the door body and the box body is sealed by the engagement of the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  Instead of these protruding pieces and steps, the electronic device storage box is formed on the other of the box body and the door body around the storage space, and the groove formed in either the box body or the door body around the storage space. And a projecting piece fitted in the groove. When the door is closed, the projecting piece is fitted into the groove between the door and the box. The gap is sealed between the door body and the box body by the function of fitting the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  In addition, instead of the projecting piece and the groove, the electronic device storage box extends around the storage space and is attached to one of the box and the door, and the first elastic packing around the storage space. You may provide the 2nd elastic packing attached to one of a box and a door on the outside. When the door is closed, the first and second elastic packings are sandwiched between the door and the box. The first and second elastic packings are crushed. Thus, the first and second packings seal the gap between the door body and the box body around the storage space. Airtightness of the storage space is ensured. Sound transmission is suppressed. In particular, it is desired that a predetermined interval be secured between the first packing and the second packing. If the interval is ensured in this way, sound leakage can be more effectively suppressed.

  The electronic device storage box is supported by the box and spreads along the second surface. The second soundproof wall is connected to the box and closes the second surface of the box and sandwiches the second soundproof wall. The second auxiliary box body that partitions the second auxiliary space adjacent to the storage space with the soundproof wall and the second soundproof wall body are provided to spatially connect the storage space and the second auxiliary space. You may further provide the 2nd ventilation hole formed in a 2nd auxiliary | assistant box body in the position facing the 2nd opening and a 2nd soundproof wall body. In this way, the second surface of the box is closed with the second auxiliary box. The storage space is connected to the outside air through the second opening, the second auxiliary space, and the second vent in addition to the above-described paths such as the opening, the auxiliary space, and the vent. When the electronic device is activated, the soundproof wall, the soundproof wall, and the second soundproof wall of the box prevent the leakage of the operation sound. On the other hand, as described above, the operating sound leaks outside from the vent on the first surface of the box. Similarly, on the second surface, the operating sound leaks from the second opening to the second auxiliary space. The soundproof wall of the second auxiliary space prevents the leakage of operating sound. The operating sound in the second auxiliary space leaks out from the second vent. Since the passage of the operating noise is significantly restricted, the operating noise that leaks out is reduced. Noise is more reliably reduced. In particular, the second vent is opposed to the second soundproof wall. In other words, the position of the second vent is shifted from the second opening. The operating sound leaking from the second opening collides with the wall of the second auxiliary box. Thus, the transmission of the operating sound can be effectively suppressed. Noise is reliably reduced. In addition, in this electronic device storage box, an opening is formed on the first surface of the box body, and an airflow passage is ensured by the auxiliary space and the vent. On the second surface, the airflow passage is secured by the second opening, the second auxiliary space, and the second vent. Outside air can be reliably introduced into the storage space. As a result, the electronic device can be effectively cooled.

  The soundproof wall of the box and the soundproof wall of the second auxiliary box may be made of a sound insulating material. Sound insulation blocks sound transmission. In this way, leakage of operating noise is prevented. A sound absorbing material may be attached to the inner surface of the box and the inner surface of the second auxiliary box. The sound absorbing material absorbs sound. Thus, the operating noise leaking from the second vent is reduced.

  The electronic device storage box may include a second door body that includes a second soundproof wall body and a second auxiliary box body and is connected to the box body so as to be freely opened and closed. Thus, the second soundproof wall and the second auxiliary box can be easily opened and closed. Maintenance of electronic devices can be realized easily in the box.

  In addition, the electronic device storage box is formed on the other side of the box body and the second door body around the storage space, and a step formed around either the box body or the second door body around the storage space. And a projecting piece engaged with the step. When the second door is closed, the projecting piece is engaged with the step between the second door and the box. The gap between the second door body and the box body is sealed by the engagement of the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  Instead of these protrusions and steps, the electronic device storage box includes a groove formed in one of the box and the second door around the storage space, and the box and the second around the storage space. You may provide the protruding piece formed in the other side of a door body, and fitting to a groove | channel. When the second door is closed, the projecting piece is fitted into the groove between the second door and the box. The gap is sealed between the second door body and the box body by the fitting of the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  In addition, instead of the projecting piece and the groove, the electronic device storage box extends around the storage space, and has a first elastic packing attached to one of the box and the second door body, and a first around the storage space. You may provide the 2nd elastic packing attached to one of a box and a 2nd door body on the outer side of an elastic packing. When the second door is closed, the first and second elastic packings are sandwiched between the second door and the box. The first and second elastic packings are crushed. Thus, the first and second packings seal the gap between the second door body and the box body around the storage space. Airtightness of the storage space is ensured. Sound transmission is suppressed. In particular, it is desired that a predetermined interval be secured between the first packing and the second packing. If the interval is ensured in this way, sound leakage can be more effectively suppressed.

  According to the second aspect of the present invention, the box that partitions the storage space sandwiched between the first surface and the second surface and opened by the first surface and the second surface with the soundproof wall, and the first surface supported by the box. A soundproof wall extending along the soundproof box, an auxiliary box that is connected to the box and covers the first surface of the box, and the auxiliary space adjacent to the storage space is sandwiched by the soundproof wall and the soundproof wall, and the soundproof wall An electronic device storage box provided with an opening formed in the body to spatially connect the storage space and the auxiliary space, and a vent formed in the auxiliary box body at a position farthest from the opening. Is done.

  In this electronic device storage box, the electronic device is stored in a box. The electronic device is mounted in the storage space from the opened first surface or second surface. The first surface is closed with an auxiliary box. The storage space is connected to the outside air through the vent, the auxiliary space, and the opening. When the electronic device is activated, the electronic device generates an operating sound. Box-shaped soundproof walls and soundproof walls prevent leakage of operating sound. On the other hand, the operating sound leaks from the opening to the auxiliary space on the first surface of the box. The soundproof wall in the auxiliary space prevents leakage of operating sound. The operating sound in the auxiliary space leaks out from the vent. Since the passage of the operation sound is restricted, the operation sound leaking out is restricted. Noise is reduced. In particular, the vent is formed in the auxiliary box at a position farthest from the opening. In other words, a distance can be gained between the vent and the opening in the auxiliary space. Thus, the transmission of the operating sound can be effectively suppressed. Noise is reliably reduced. In addition, in this electronic device storage box, airflow is ensured in the opening on the first surface of the box, the auxiliary space, and the vent. Outside air can be reliably introduced into the storage space. As a result, the electronic device can be effectively cooled.

  The soundproof wall of the box or the soundproof wall of the auxiliary box may be made of a sound insulating material. Sound insulation blocks sound transmission. In this way, leakage of operating noise is prevented. A sound absorbing material may be attached to the inner surface of the box or the inner surface of the auxiliary box. The sound absorbing material absorbs sound. Thus, the operating noise leaking from the vent is reduced.

  The electronic device storage box may include a soundproof wall body and an auxiliary box body, and may include a door body that is openably and closably connected to the box body. Thus, the soundproof wall and the auxiliary box can be easily opened and closed. Maintenance of electronic devices can be realized easily in the box.

  In addition, the electronic device storage box is formed on one of the box and the door around the storage space, and is formed on the other of the box and the door around the storage space and meshed with the step. You may provide a protruding piece. When the door is closed, the projecting piece is engaged with the step between the door and the box. The gap between the door body and the box body is sealed by the engagement of the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  Instead of these protruding pieces and steps, the electronic device storage box is formed on the other of the box body and the door body around the storage space, and the groove formed in either the box body or the door body around the storage space. And a projecting piece fitted in the groove. When the door is closed, the projecting piece is fitted into the groove between the door and the box. The gap is sealed between the door body and the box body by the function of fitting the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  In addition, instead of the projecting piece and the groove, the electronic device storage box extends around the storage space and is attached to one of the box and the door, and the first elastic packing around the storage space. You may provide the 2nd elastic packing attached to one of a box and a door on the outside. When the door is closed, the first and second elastic packings are sandwiched between the door and the box. The first and second elastic packings are crushed. Thus, the first and second packings seal the gap between the door body and the box body around the storage space. Airtightness of the storage space is ensured. Sound transmission is suppressed. In particular, it is desired that a predetermined interval be secured between the first packing and the second packing. If the interval is ensured in this way, sound leakage can be more effectively suppressed.

  The electronic device storage box is supported by the box and spreads along the second surface. The second soundproof wall is connected to the box and closes the second surface of the box and sandwiches the second soundproof wall. The second auxiliary box body that partitions the second auxiliary space adjacent to the storage space with the soundproof wall and the second soundproof wall body are provided to spatially connect the storage space and the second auxiliary space. You may further provide a 2nd opening and the 2nd ventilation hole formed in a 2nd auxiliary | assistant box body in the position most distant from the 2nd opening. In this way, the second surface of the box is closed with the second auxiliary box. The storage space is connected to the outside air through the second opening, the second auxiliary space, and the second vent in addition to the above-described paths such as the opening, the auxiliary space, and the vent. When the electronic device is activated, the soundproof wall, the soundproof wall, and the second soundproof wall of the box prevent the leakage of the operation sound. On the other hand, as described above, the operating sound leaks outside from the vent on the first surface of the box. Similarly, on the second surface, the operating sound leaks from the second opening to the second auxiliary space. The soundproof wall of the second auxiliary space prevents the leakage of operating sound. The operating sound in the second auxiliary space leaks out from the second vent. Since the passage of the operating noise is significantly restricted, the operating noise that leaks out is reduced. Noise is more reliably reduced. In particular, the second vent is formed in the second auxiliary box at a position farthest from the second opening. In other words, a distance can be gained between the second vent and the second opening in the second auxiliary space. Thus, the transmission of the operating sound can be effectively suppressed. Noise is reliably reduced. In addition, in this electronic device storage box, an opening is formed on the first surface of the box body, and an airflow passage is ensured by the auxiliary space and the vent. On the second surface, the airflow passage is secured by the second opening, the second auxiliary space, and the second vent. Outside air can be reliably introduced into the storage space. As a result, the electronic device can be effectively cooled.

  The soundproof wall of the box and the soundproof wall of the second auxiliary box may be made of a sound insulating material. Sound insulation blocks sound transmission. In this way, leakage of operating noise is prevented. A sound absorbing material may be attached to the inner surface of the box and the inner surface of the second auxiliary box. The sound absorbing material absorbs sound. Thus, the operating noise leaking from the second vent is reduced.

  The electronic device storage box may include a second door body that includes a second soundproof wall body and a second auxiliary box body and is connected to the box body so as to be freely opened and closed. Thus, the second soundproof wall and the second auxiliary box can be easily opened and closed. Maintenance of electronic devices can be realized easily in the box.

  In addition, the electronic device storage box is formed on the other side of the box body and the second door body around the storage space, and a step formed around either the box body or the second door body around the storage space. And a projecting piece engaged with the step. When the second door is closed, the projecting piece is engaged with the step between the second door and the box. The gap between the second door body and the box body is sealed by the engagement of the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  Instead of these protrusions and steps, the electronic device storage box includes a groove formed in one of the box and the second door around the storage space, and the box and the second around the storage space. You may provide the protruding piece formed in the other side of a door body, and fitting to a groove | channel. When the second door is closed, the projecting piece is fitted into the groove between the second door and the box. The gap is sealed between the second door body and the box body by the fitting of the projecting piece and the step. Sound leakage is prevented from the gap. The operating sound of the electronic device can be effectively confined in the storage space.

  In addition, instead of the projecting piece and the groove, the electronic device storage box extends around the storage space, and has a first elastic packing attached to one of the box and the second door body, and a first around the storage space. You may provide the 2nd elastic packing attached to one of a box and a 2nd door body on the outer side of an elastic packing. When the second door is closed, the first and second elastic packings are sandwiched between the second door and the box. The first and second elastic packings are crushed. Thus, the first and second packings seal the gap between the second door body and the box body around the storage space. Airtightness of the storage space is ensured. Sound transmission is suppressed. In particular, it is desired that a predetermined interval be secured between the first packing and the second packing. If the interval is ensured in this way, sound leakage can be more effectively suppressed.

  According to the third invention, the box body that partitions the storage space, the door body that is openably and closably connected to the box body, covers the opening of the storage space, and extends around the opening. A first elastic packing attached to one side and a second elastic attached in parallel to the first elastic packing at a position spaced apart from the first elastic packing around the opening and attached to either the box or the door An electronic device storage box including a packing is provided.

  When the door is closed, the first and second elastic packings are sandwiched between the door and the box. The first and second elastic packings are crushed. Thus, the first and second packings seal the gap between the door body and the box body around the storage space. Airtightness of the storage space is ensured. Sound transmission is suppressed. In particular, it is desired that a predetermined interval be secured between the first packing and the second packing. If the interval is ensured in this way, sound leakage can be more effectively suppressed.

  As described above, according to the present invention, an electronic device storage box that can greatly contribute to a reduction in noise of the electronic device is provided.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 schematically shows an electronic device storage box 11 according to a first embodiment of the present invention. The electronic device storage box 11 includes a box 12. The first surface of the box 12, that is, the front surface 13 is closed by the first door body 14. The second surface of the box 12, that is, the back surface 15 is closed by the second door body 16. The first door body 14 and the second door body 16 are connected to the box body 12 so as to be freely opened and closed. For example, a hinge 17 may be used for such connection. The first door body 14 and the second door body 16 swing around the hinge axis of the hinge 17. The hinge 17 allows the first door body 14 and the second door body 16 to be attached to and detached from the box body 12. The fastener 18 cooperates with the hinge 17 to bring the first door body 14 and the second door body 16 into close contact with the box body 12. The fastener 18 regulates the opening of the first door body 14 and the second door body 16. The box body 12, the first door body 14, and the second door body 16 are partitioned by soundproof walls.

  The first door body 14 includes a first auxiliary box body 21. The first auxiliary box body 21 includes a first outer wall body 21 a that extends parallel to the front surface 13 of the box body 12. The second and third outer wall bodies 21b and 21c are connected to the side edges of the first outer wall body 21a. The second and third outer wall bodies 21b and 21c face each other. Fourth outer wall bodies 21d and 21d facing each other are connected to the upper edge and the lower edge of the first outer wall body 21a. As will be described later, the first outer wall body 21a, the second outer wall body 21b, the third outer wall body 21c, and the fourth outer wall bodies 21d and 21d cooperate to define a rectangular parallelepiped auxiliary space. A first ventilation hole 22 is formed in the first outer wall body 21a. The 1st ventilation hole 22 is comprised by the vertically long window hole extended in a gravitational direction. The first vent 22 extends along a ridge line defined between the first outer wall body 21a and the third outer wall body 21c.

  As shown in FIG. 2, the second door body 16 includes a second auxiliary box body 23. The second auxiliary box body 23 includes a first outer wall body 23 a that extends parallel to the back surface 15 of the box body 12. The second and third outer wall bodies 23b and 23c are connected to the side edges of the first outer wall body 23a. The second and third outer wall bodies 23b and 23c face each other. Fourth outer wall bodies 23d and 23d facing each other are connected to the upper edge and the lower edge of the first outer wall body 23a. As will be described later, the first outer wall body 23a, the second outer wall body 23b, the third outer wall body 23c, and the fourth outer wall bodies 23d and 23d cooperate to define a rectangular parallelepiped auxiliary space. A second vent 24 is formed in the first outer wall body 23a. The 2nd vent 24 is comprised by the vertically long window hole extended in a gravitational direction. The second vent 24 extends along a ridge line defined between the first outer wall body 23a and the third outer wall body 23c.

  A power supply wiring 25 is connected to the side surface of the box 12. The power supply wiring 25 is connected to a commercial power supply, for example. The power supply wiring 25 supplies power to the box body 12.

  As shown in FIG. 3, the first door body 14 includes a first soundproof wall body 26 that closes the front surface 13 of the box body 12. The outer edge of the first soundproof wall 26 is connected to the second outer wall 21b, the third outer wall 21c, and the fourth outer wall 21d. When the first door body 14 is closed, the first soundproof wall body 26 spreads along the front surface 13 of the box body 12. A packing member 27 is attached to the first soundproof wall 26 along the outer edge without interruption. For example, rubber may be used for the packing member 27. Details of the packing member 27 will be described later.

  A first opening 28 is bored in the first soundproof wall 26. The 1st opening 28 is comprised by the vertically long window hole extended in a gravitational direction. The first opening 28 extends along a ridgeline defined between the first soundproof wall 26 and the second outer wall 21b. A first blower unit 29 is attached to the first opening 28. The first blower unit 29 includes, for example, eight first blowers 31. The individual first blowers 31 may be configured by, for example, an axial fan unit. In the axial fan unit, the blades rotate around a rotation axis extending in the horizontal direction. The axial fan unit generates airflow in the horizontal direction. The first blower 31 is detachably fixed to the first soundproof wall 26 individually. The first air blowing unit 29 has a predetermined air blowing capacity. The first blowers 31 are arranged in the direction of gravity, for example.

  In the box 12, for example, a rectangular parallelepiped storage space 32 that is sandwiched between the front surface 13 and the back surface 15 and opened at the front surface 13 and the back surface 15 is defined. A rack 33 is accommodated in the storage space 32. The rack 33 constitutes a so-called 19-inch rack. The rack 33 defines a rack space for receiving an electronic device described later. A control box 34 is disposed beside the rack 33. For example, a control board for controlling the operation of the first blower 31 is incorporated in the control box 34. Details of the control board will be described later.

  A first sensor group 35 is incorporated in the storage space 32. The first sensor group 35 includes a plurality of first temperature sensors 37 that are attached to a column 36 extending in the direction of gravity, for example, at a predetermined interval. The support column 36 is disposed between the first soundproof wall 26 and the rack space of the rack 33. That is, the column 36 is disposed outside the rack space at a position away from the first soundproof wall 26. The first temperature sensor 37 is arranged along a ridgeline defined between the first soundproof wall 26 and the third outer wall 21c. The first temperature sensor 37 detects the ambient temperature.

  As shown in FIG. 4, the second door body 16 includes a second soundproof wall body 38 that closes the back surface 15 of the box body 12. The outer edge of the second soundproof wall 38 is connected to the second outer wall 23b, the third outer wall 23c, and the fourth outer wall 23d. When the second door body 16 is closed, the second soundproof wall body 38 spreads along the back surface 15 of the box body 12. A packing member 39 is arranged on the second sound barrier 38 along the outer edge without interruption. For example, rubber may be used for the packing member 39.

  A second opening 41 is formed in the second soundproof wall 38. The second opening 41 is configured by a vertically long window hole extending in the direction of gravity. The second opening 41 extends along a ridge line defined between the second soundproof wall 38 and the second outer wall 23b. A second air blowing unit 42 is attached to the second opening 41. The second blower unit 42 includes, for example, eight second blowers 43. Each of the second blowers 43 may be configured with, for example, an axial fan unit. In the axial fan unit, the blades rotate around a rotation axis extending in the horizontal direction. The axial fan unit generates airflow in the horizontal direction. The second blower 43 is detachably fixed to the second soundproof wall 38 individually. The second blower 43 is arranged in the direction of gravity, for example. The second blower unit 42 includes the same blower group as the blower group incorporated in the first blower unit 29. The second air blowing unit 42 has an air blowing capacity equal to the air blowing capacity of the first air blowing unit 29.

  A second sensor group 44 is incorporated in the storage space 32. The second sensor group 44 includes, for example, a plurality of second temperature sensors 46 that are attached to a support column 45 extending in the direction of gravity at a predetermined interval. The support column 45 is disposed between the second soundproof wall 38 and the rack space of the rack 33. That is, the column 45 is disposed outside the rack space at a position away from the second soundproof wall 38. The second temperature sensor 46 is arranged along a ridge line defined between the second soundproof wall 38 and the third outer wall 23c. The second temperature sensor 46 detects the ambient temperature.

  As shown in FIG. 5, the first auxiliary box body 21 of the first door body 14 defines a rectangular parallelepiped first auxiliary space 47 that is adjacent to the storage space 32 of the box body 12 with the first soundproof wall body 26 interposed therebetween. To do. The first auxiliary space 47 is defined by a vertically long cross section extending in the direction of gravity. The first opening 28 spatially connects the storage space 32 and the first auxiliary space 47. The first vent 22 spatially connects the first auxiliary space 47 and the external space. The first vent 22 is formed in the first auxiliary box 21 at a position facing the first soundproof wall 26. That is, the position of the first vent 22 is shifted from the position of the first opening 28.

  Similarly, the second auxiliary box 23 of the second door 16 defines a rectangular second auxiliary space 48 adjacent to the storage space 32 of the box 12 with the second soundproof wall 38 interposed therebetween. The second auxiliary space 48 is defined by a vertically long cross section extending in the direction of gravity. The second opening 41 spatially connects the storage space 32 and the second auxiliary space 48. The second vent 24 spatially connects the second auxiliary space 48 and the external space. The second vent 24 is formed in the second auxiliary box 23 at a position facing the second soundproof wall 38. That is, the position of the second vent 24 is shifted from the position of the second opening 41.

  As shown in FIG. 6, the box body 12, the first auxiliary box body 21, the first soundproof wall body 26, the second auxiliary box body 23, and the second soundproof wall body 38 are made of a soundproof wall, that is, a sound insulating material. Sound insulation blocks sound transmission. For example, an iron plate having a considerable thickness may be used as the sound insulating material. The sound insulation effect is enhanced as the rigidity of the iron plate increases as the plate thickness increases. An inward surface of the box material 12, an inward surface of the first auxiliary box body 21, a front surface and a back surface of the first soundproof wall body 26, an inward surface of the second auxiliary box body 23, a surface of the second soundproof wall body 38, and A sound absorbing material 51 having a predetermined thickness is attached to the back surface. The sound absorbing material 51 absorbs sound. For the sound absorbing material 51, for example, urethane resin, glass wool, rock wool, or non-woven fabric may be used.

  The first auxiliary space 47 extends while being bent from the first vent 22 toward the first opening 28. The first vent 22 is formed in the first auxiliary box 21 at a position farthest from the first opening 28. The distance between the first vent 22 and the first opening 28 may be set to 0.25 [m] or more, for example. Similarly, the second auxiliary space 48 extends while being bent from the second opening 41 toward the second vent hole 24. The second vent 24 is formed in the second auxiliary box 23 at a position farthest from the second opening 41. The distance between the second vent 24 and the second opening 41 is set to, for example, 0.25 [m] or more. In this way, in the electronic device storage box 11, an airflow passage is established by the first ventilation port 22, the first auxiliary space 47, the first opening 28, the storage space 32, the second opening 41, and the second ventilation port 24.

  As shown in FIG. 7, the packing member 27 includes first and second elastic packings 52 and 53 attached to the first door body 14 around the storage space 32. The second elastic packing 53 is attached to the first door body 14 outside the first elastic packing 52. However, both the first and second elastic packings 52 and 53 may be attached to the box body 12. Similarly, one of the first and second elastic packings 52 and 53 is attached to the first door body 14, and the other of the first and second elastic packings 52 and 53 is attached to the box body 12. May be. The packing member 39 may be configured in the same manner as the packing member 27.

  When the first door body 14 and the second door body 16 are closed, the first and second elastic packings 52 and 53 are sandwiched between the first door body 14 and the second door body 16 and the box body 12. The first and second elastic packings 52 and 53 are crushed. Thus, the first and second elastic packings 52 and 53 seal the gap between the first door body 14 and the box body 12 and the gap between the second door body 16 and the box body 12 over the entire length around the storage space 32. .

  FIG. 8 shows the control system of the present invention. As described above, the control board 61 is incorporated in the control box 34. A control circuit, that is, a microcomputer 62 is mounted on the control board 61. The microcomputer 62 executes processing based on a program stored in the built-in memory. In executing the program, the microcomputer 62 reads desired data from the built-in memory.

  A first drive circuit 63 is mounted on the control board 61. The first drive circuit 63 is individually connected to each first blower 31. The first drive circuit 63 controls on / off and rotation speed for each individual first blower 31 in accordance with instructions from the microcomputer 62. A voltage is individually applied from the first drive circuit 63 to each first blower 31 in such on / off and rotation speed control. Through such control, for example, the air flow rate of the individual first blowers 31 can be set to a uniform value. The microcomputer 62 can monitor the operation state of each first blower 31 based on the operation of the first drive circuit 63.

  Similarly, a second drive circuit 64 is mounted on the control board 61. The second drive circuit 64 is individually connected to each second blower 43. The second drive circuit 64 controls on / off and rotation speed for each second blower 43 in accordance with instructions from the microcomputer 62. A voltage is individually applied from the second drive circuit 64 to each of the second blowers 43 in such on / off and rotation speed control. Through such control, for example, the amount of air blown from each second blower 43 can be set to a uniform value. The microcomputer 62 can monitor the operation state of each second blower 43 based on the operation of the second drive circuit 64.

  The microcomputer 62 is connected to the first temperature sensor 37 and the second temperature sensor 46 described above. The individual temperature sensors 37 and 46 output sensor signals to the microcomputer 62. In the sensor signal, temperature information for specifying the temperature detected by the temperature sensors 37 and 46 is described. In this way, the microcomputer 62 acquires temperature information for each of the temperature sensors 37 and 46. In collecting such temperature information, an analog switch 65 is sandwiched between the first and second temperature sensors 37 and 46 and the microcomputer 62. The analog switch 65 connects the temperature sensors 37 and 46 to the microcomputer 62 in order. Thus, the sensor signals supplied from the plurality of temperature sensors 37 and 46 are distinguished from each other. The microcomputer 62 calculates the average value of the temperature information supplied from the first temperature sensor group 35 and the average value of the temperature information supplied from the second temperature sensor group 44. The difference between the average values is calculated.

  A first door switch 66 and a second door switch 67 are connected to the microcomputer 62. The first door switch 66 is disposed between the box body 12 and the first door body 14, for example. The first door switch 66 detects the opening of the first door body 14. The first door switch 66 outputs a first detection signal toward the microcomputer 62. In the first detection signal, detection information for specifying opening of the first door body 14 is described. The first door switch 66 may be configured from a contact point that conducts when the first door body 14 is closed. Similarly, the second door switch 67 is disposed between the box body 12 and the second door body 16, for example. The second door switch 67 detects the opening of the second door body 16. The second door switch 67 outputs a second detection signal to the microcomputer 62. In the second detection signal, detection information for specifying opening of the second door body 16 is described. The second door switch 67 may be configured from a contact point that is conductive when the second door body 16 is closed.

  A first power supply 68 is connected to the microcomputer 62. An AC voltage is supplied to the first power supply 68. The first power supply 68 converts an AC voltage into a DC voltage. A regulator 69 is sandwiched between the microcomputer 62 and the first power supply 68. For example, the regulator 69 may be mounted on the control board 61. The regulator 69 converts the DC voltage supplied from the first power supply 68 into a voltage having a predetermined voltage value. In this way, a voltage having a specified voltage value is applied to the microcomputer 62. Similarly, a second power supply 71 is connected to the first drive circuit 63 and the second drive circuit 64. An AC voltage is supplied to the second power supply 71. The second power supply 71 converts an AC voltage into a DC voltage. Thus, a voltage having a specified voltage value is applied to the first drive circuit 63 and the second drive circuit 64.

  A power switch 72 is connected to the first and second power supplies 68 and 71. Power is supplied to the power switch 72 from the power wiring 25 described above. When the power switch 72 is opened, the supply of power to the first and second power supplies 68 and 71 is stopped. When the power switch 72 is closed, power is supplied to the first and second power supplies 68 and 71.

  An error monitoring circuit 73 is sandwiched between the microcomputer 62 and the regulator 69. The error monitoring circuit 73 can detect the voltage supplied from the regulator 69 to the microcomputer 62. The error monitoring circuit 73 waits for an output signal from the microcomputer 62 for a predetermined time from the start of voltage supply. If the error monitoring circuit 73 does not receive an output signal from the microcomputer 62 within a predetermined time from the supply of voltage, the error monitoring circuit 73 detects the occurrence of a failure in the microcomputer 62. A predetermined initial motion is set in the microcomputer 62. In this initial operation, as soon as the microcomputer 62 starts to receive voltage supply, the aforementioned output signal is output toward the error monitoring circuit 73.

  A display device 74 is connected to the microcomputer 62 and the error monitoring circuit 73. The display device 74 may be installed on the outer surface of the box body 12 or the first door body 14, for example. The microcomputer 62 outputs a predetermined display signal based on the state of the sensor signal described above, the operation state of the first and second drive circuits 63 and 64, and the first and second detection signals. Based on these display signals, a predetermined display is displayed on the display device 74. Similarly, the error monitoring circuit 73 supplies a predetermined display signal to the display device 74 in response to a failure of the microcomputer 62. Here, the display device 74 may display alphabets and numbers. A specific meaning may be assigned in advance to combinations of alphabets and numbers. According to such a display device 74, for example, the state of the first and second blower units 29 and 42 can be surely visually notified to the user of the server computer 75. The user of the server computer 75 can know the state of the first and second blower units 29 and 42 with certainty.

  Now, as shown in FIG. 9, it is assumed that, for example, a rack-mount server computer 75 is mounted on a rack in the electronic device storage box 11. The power cords of the individual server computers 75 are connected to, for example, the power supply wiring 25 described above. Power is supplied to the server computer 75 from the power supply wiring 25. The first door body 14 and the second door body 16 are opened when the server computer 75 is mounted or wired. When the mounting work and the wiring work are finished, the first door body 14 and the second door body 16 are closed. The first door body 14 and the second door body 16 are pressed against the box body 12 by the function of the fastener 18. The clearance between the first door body 14 and the box body 12 and the clearance between the second door body 16 and the box body 12 are sealed over the entire length around the storage space 32 by the action of the first and second elastic packings 52 and 53. The

  As shown in FIG. 10, each server computer 75 is accommodated in a rack space 76. At this time, a predetermined interval is secured between the front panel of the server computer 75 and the first soundproof wall 26. As a result, a front space 77 is formed between the rack space 76 and the first soundproof wall 26. Similarly, a predetermined interval is secured between the rear panel of the server computer 75 and the second soundproof wall 38. As a result, a rear space 78 is formed between the rack space 76 and the second soundproof wall 38.

  When the server computer 75 is operated, the cooling fan is operated in each server computer 75 according to the internal temperature. As shown in FIG. 10, the cooling fan generates an air flow in the horizontal direction from the front space 77 toward the rear space 78 in the housing of the server computer 75. At this time, the cooling fan generates an operating noise. The operating sound is sound-insulated by the action of the box 12 and the first and second soundproof walls 26 and 38. At the same time, the sound absorbing material 51 absorbs the operating sound inside the box 12 and the first and second soundproof walls 26 and 38. The operating sound leaks only from the first opening 28 and the second opening 41. The leaked operating sound travels from the first and second auxiliary spaces 47 and 48 to the first and second vent holes 22 and 24. Since the first and second auxiliary spaces 47 and 48 are surrounded by the sound absorbing material 51, the operating sound is sufficiently absorbed in the first and second auxiliary spaces 47 and 48. In particular, the first and second auxiliary spaces 47 and 48 extend while bending from the first and second openings 28 and 41 to the first and second vent holes 22 and 24. The operating sound leaking from the first opening 28 and the second opening 41 collides with the first outer wall bodies 21 a and 23 a of the first auxiliary box body 21 and the second auxiliary box body 23, that is, the sound absorbing material 51. Thus, the transmission of the operating sound can be effectively suppressed. As a result, leakage of operating noise is suppressed to the maximum. Noise is reliably reduced.

  When the power switch 72 is turned on, power is supplied from the first power supply 68 to the microcomputer 62. The microcomputer 62 receives sensor signals from the individual temperature sensors 37 and 46. The microcomputer 62 calculates the average temperature of the first temperature sensor 37 in the first temperature sensor group 35 based on the sensor signal. At the same time, the microcomputer 62 calculates the average temperature of the second temperature sensor 46 in the second temperature sensor group 44 based on the sensor signal. The microcomputer 62 subtracts the average value of the first temperature sensor group 35 from the average value of the second temperature sensor group 44. Thus, the microcomputer 62 calculates the temperature difference between the intake air and the exhaust gas.

  If the temperature difference is within a predetermined range (for example, 2 degrees), the microcomputer 62 instructs the first and second drive circuits 63 and 64 to stop the first blower unit 29 and the second blower unit 42. At this time, the temperature rise in the server computer 75 is denied. When the temperature difference exceeds a predetermined range, the microcomputer 62 recognizes the occurrence of a temperature rise in the server computer 75. The microcomputer 62 instructs the first and second drive circuits 63 and 64 to operate the first and second blower units 29 and 42. The first and second drive circuits 63 and 64 supply power to the first and second blowers 31 and 43. The first and second blowers 31 and 43 generate an air flow in the horizontal direction. As shown in FIG. 10, the outside air is introduced into the first auxiliary space 47 from the first vent 22. Air in the first auxiliary space 47 is sent into the front space 77 from the first opening 28. Thus, the server computer 75 can always inhale fresh outside air.

  Air is discharged from the server computer 75 to the rear space 78. The discharged air is sent into the second auxiliary space 48 by the function of the second air blowing unit 42. Air is exhausted from the second vent 24. In this way, the hot air is discharged to the outside. The air in the storage space 32 is sufficiently replaced by the action of the first and second air blowing units 29 and 42. Therefore, excessive temperature rise can be reliably avoided in the server computer 75. Server computer 75 can be effectively cooled. And the 1st opening 28 and the 2nd opening 41 are comprised by the vertically long window hole extended in a gravitational direction. Since the server computers 75 are arranged in the direction of gravity in the rack 33, if the first opening 28 and the second opening 41 extend in the direction of gravity, the outside air can circulate evenly to the individual server computers 75. Any server computer 75 can be reliably cooled.

  The microcomputer 62 changes the air volume of the first and second air blowing units 29 and 42 according to the magnitude of the temperature difference. In making such a change, the microcomputer 62 changes the voltage output from the first and second drive circuits 63 and 64 according to the magnitude of the temperature difference. If the temperature difference increases, the voltage supplied to the individual blowers 31 and 43 may increase. At this time, the air flow rate of the first air blowing unit 29 may be set equal to the air flow rate of the second air blowing unit 42. In the 1st ventilation unit 29, the uniform ventilation volume should just be set in common with each 1st air blower 31. Similarly, in the 2nd ventilation unit 42, the uniform ventilation volume should just be set by each 2nd air blower 43 in common. In setting the uniform air flow rate, the power of the same voltage value may be supplied to the individual fans 31 and 43. However, the air blowing amount of the first air blowing unit 29 may be different from that of the second air blowing unit 42, and a different air blowing amount may be set for each of the individual fans 31 and 43. In any case, it is desirable that the generation of vortices in the storage space 32 is avoided. The generation of vortices induces an increase in noise.

  The microcomputer 62 monitors the first door switch 66 and the second door switch 67 in controlling the operations of the first and second blower units 29 and 42. When the microcomputer 62 receives the first detection signal from the first door switch 66, the microcomputer 62 instructs the first drive circuit 63 to stop the operation of the first blower unit 29. When the first door body 14 is thus opened, the operation of the first blower unit 29 is stopped. When the microcomputer 62 receives the second detection signal from the second door switch 67, the microcomputer 62 instructs the second drive circuit 64 to stop the operation of the second blower unit 42. When the second door body 16 is thus opened, the operation of the second blower unit 42 is stopped. Note that the microcomputer 62 may instruct to stop the operation of the first blower unit 29 and the second blower unit 42 in response to reception of one of the first detection signal and the second detection signal.

  In the electronic device storage box 11 as described above, the first door body 14 and the second door body 16 are detachably connected to the box body 12. The first door body 14 and the second door body 16 can be easily removed. Maintenance of the server computer 75 can be easily realized in the box 12. The first door body 14, that is, the first auxiliary box body 21, and the first soundproof wall body 26, and the second door body 16, that is, the second auxiliary box body 23, and the second soundproof wall body 38 can be easily replaced.

  Moreover, the second blower unit 42 includes the same blower group as the blower group incorporated in the first blower unit 29. Thus, the opening area of the second opening 41 is set equal to the opening area of the first opening 28. The opening area of the first soundproof wall body 26 and the second soundproof wall body 38 can be minimized. In addition, the second blower unit 42 has a blower capacity equal to the blower ability of the first blower unit 29. According to such a setting, the stagnation of the airflow in the storage space 32 can be prevented. The generation of vortices in the storage space 32 can be avoided.

  In addition, the first temperature sensor 37 and the second temperature sensor 46 detect the temperature of air in the storage space 32. Based on the temperature of the air, the microcomputer 62 controls the operation of the first blower unit 29 and the second blower unit 42. The amount of air blown by the first air blowing unit 29 and the second air blowing unit 42 can be set according to the temperature of the air. In this way, appropriate outside air can always be introduced into the storage space 32. Server computer 75 can be efficiently cooled.

  Further, for example, the first opening 28 extends along a ridgeline defined between the first soundproof wall 26 and the second outer wall 21b. The first temperature sensor 37 is arranged along a ridgeline defined between the first soundproof wall 26 and the third outer wall 21c. In such a configuration, the outside air introduced from the first opening 28 does not easily reach the ridgeline defined between the first soundproof wall body 26 and the third outer wall body 21c. Therefore, the temperature is likely to rise at a position close to the ridgeline defined between the first soundproof wall 26 and the third outer wall 21c. If the temperature is detected at such a portion, an excessive temperature rise of the server computer 75 can be surely prevented. The same applies to the second opening 41 and the second temperature sensor 46.

  In the electronic device storage box 11 as described above, it is desirable that the opening area of the first vent 22 is set to at least 1/20 of the area of the front surface 13 of the box 12. The inventor verified the relationship between the opening area of the first vent 22 and the pressure loss in the area of the front surface 13. The inventor conducted computer simulation for the verification. In the computer simulation, the inventor changed the opening area of the first vent 22 with respect to the area of the front surface 13. At this time, an air flow at a speed of 0.5 m / s was set uniformly in the front space 77 from the first soundproof wall 26 toward the rack space 76. As shown in FIG. 11, it was confirmed that the pressure loss decreased as the ratio of the opening area to the area of the front surface 13 increased. When the ratio of the opening area is reduced from 1/20, an air flow having a wind speed exceeding 10 [m / s] is generated at the first vent 22. In general, when the wind speed exceeds 10 [m / s], the wind noise of the airflow increases significantly. Noise increases. Therefore, here, if the ratio of the opening area is set to 1/20 or more, a sufficient silencing effect can be obtained. In the figure, Limit 1 indicates the air blowing limit of a square axial fan unit having sides of about 120 [mm] to 140 [mm]. Limit 2 indicates the blowing limit of a round axial fan unit having a diameter of about 200 [mm]. If the pressure loss exceeds the delivery limit pressure, no airflow is generated despite the operation of the axial fan unit. The opening area of the second vent 24 may be set at a ratio similar to that of the first vent 22 with respect to the area of the back surface 15.

  In the electronic device storage box 11 as described above, the distance from the first vent 22 to the rack space 76 is desirably set to 0.4 [m] or more. The inventor has verified the relationship between such distance and the effect of noise reduction. The inventor conducted computer simulation for the verification. In the computer simulation, the effect of the sound absorbing material 51 was confirmed in the first auxiliary space 47. As a result, as shown in FIG. 12, a noise reduction of 10 [dB] was obtained for every 1 [m]. That is, for example, when a distance of 1 [m] is secured between the rack space 76 and the first vent 22, the noise in the rack space 76 is reduced by 10 [dB] before reaching the first vent 22. Confirmed to do. In general, humans feel noise reduction with a reduction of at least 4 [dB]. Therefore, if 0.4 [m] is ensured between the first vent 22 and the rack space 76, the user can feel the noise reduction effect.

  FIG. 13 schematically shows an electronic device storage box 11a according to a second embodiment of the present invention. In the 1st door body 14 of this electronic device storage box 11a, the 1st vent 22 is constituted by the horizontally long window hole extended in the horizontal direction. The first vent hole 22 extends along a ridge line defined between the first outer wall body 21a and the upper fourth outer wall body 21d. As shown in FIG. 14, the first opening 28 is configured by a horizontally long window hole extending in the horizontal direction. The first opening 28 extends along a ridge line defined between the first soundproof wall 26 and the fourth outer wall 21d at the lower end. The first blowers 31 are arranged in the horizontal direction.

  As shown in FIG. 15, the second vent 24 extends along a ridge line defined between the first outer wall body 23a and the fourth outer wall body 23d at the lower end. The second opening 41 extends along a ridgeline defined between the second soundproof wall 38 and the upper fourth outer wall 23d. The 2nd ventilation hole 24 and the 2nd opening 41 are comprised by the horizontally long window hole extended in a horizontal direction. In addition, the same reference numerals are given to the configurations and structures equivalent to those of the electronic device storage box 11 described above. In such an electronic device storage box 11a, the same effect as the above-described electronic device storage box 11 is realized. Moreover, the first auxiliary space 47 and the second auxiliary space 48 are defined by a vertically long section extending in the direction of gravity. Therefore, the distance can be further increased between the first vent 22 and the first opening 28 and between the second vent 24 and the second opening 41. Sound transmission can be further inhibited.

  FIG. 16 schematically shows an electronic device storage box 11b according to a third embodiment of the present invention. In the first door body 14 of the electronic device storage box 11 b, the first vent 22 is formed in the fourth outer wall body 21 d at the upper end of the first auxiliary box body 21. Thus, the first vent 22 opens at the ceiling surface of the first auxiliary space 47. The first vent 22 extends along a ridge line defined between the first outer wall body 21a and the upper fourth outer wall body 21d. The 1st ventilation port 22 is comprised by the horizontally long window hole extended in a horizontal direction similarly to the above-mentioned.

  The second vent 24 opens at the ceiling surface of the second auxiliary space 48. The second vent 24 extends along a ridge line defined between the first outer wall body 23a and the upper fourth outer wall body 23d. The second opening 41 extends along a ridge line defined between the second soundproof wall 38 and the fourth outer wall 23d at the lower end. The 2nd ventilation hole 24 and the 2nd opening 41 are comprised by the horizontally long window hole extended in a horizontal direction. In addition, the same reference numerals are assigned to the configurations and structures equivalent to those of the electronic device storage box 11a. In such an electronic device storage box 11b, the same effect as the above-described electronic device storage box 11 is realized. Note that the opening positions of the first vent 22 and the second vent 24 may be appropriately set according to the installation location of the electronic device storage box 11b.

  FIG. 17 schematically shows an electronic device storage box 11c according to a fourth embodiment of the present invention. In the first door body 14 of the electronic device storage box 11 c, the first ventilation port 22 is formed in the fourth outer wall body 21 d at the lower end of the first auxiliary box body 21. The first vent 22 opens at the bottom surface of the first auxiliary space 47. The first vent hole 22 extends along a ridgeline defined between the first outer wall body 21a and the fourth outer wall body 21d at the lower end. The 1st ventilation port 22 is comprised by the horizontally long window hole extended in a horizontal direction similarly to the above-mentioned.

  The second vent 24 opens at the bottom surface of the second auxiliary space 48. The second vent 24 extends along a ridge line defined between the first outer wall body 23a and the fourth outer wall body 23d at the lower end. The second opening 41 extends along a ridge line defined between the second soundproof wall 38 and the fourth outer wall 23d at the lower end. The 2nd ventilation hole 24 and the 2nd opening 41 are comprised by the horizontally long window hole extended in a horizontal direction. In addition, the same reference numerals are assigned to configurations and structures equivalent to those of the electronic device storage box 11b. In such an electronic device storage box 11c, the same effects as those of the electronic device storage box 11 described above are realized.

  FIG. 18 schematically shows an electronic device storage box 11d according to a fifth embodiment of the present invention. In the electronic device storage box 11d, the front surface 13 of the box 12 is closed by the first door body 14. The formation of the second door body 16 is omitted. First and second vent holes 22 and 24 are formed in the first door body 14. The 1st and 2nd ventilation holes 22 and 24 are comprised by the horizontally long window hole extended in a horizontal direction. The first vent hole 22 extends along a ridgeline defined between the first outer wall body 21a and the fourth outer wall body 21d at the lower end. The second vent 24 extends in parallel with the first vent 22 above the first vent 22.

  As shown in FIG. 19, the box 12 defines an internal space 81 that is sandwiched between the front surface 13 and the back surface 15 and is opened at the front surface 13. The internal space 81 is closed at the back surface 15. A wall 82 extending along a horizontal plane is attached to the box 12. A third surface or upright surface 83 is defined along the rear end of the wall 82. The internal space 81 defines a storage space 84 that is sandwiched between the front surface 13 and the upright surface 83 of the box 12 and is opened at the front surface 13 and the upright surface 83. The rack 33 is incorporated in the storage space 84. A flow passage 85 extending from the upright surface 83 to the front surface 13 is defined outside the storage space 84 in the internal space 81.

  The first door body 14 includes first and second auxiliary box bodies 86 and 87. The first and second auxiliary boxes 86 and 87 individually define the first and second auxiliary spaces 88 and 89. The first vent 22 is formed in the first auxiliary box 86. The first auxiliary box 86 is connected to a first soundproof wall 91 that extends along the front surface 13 of the box 12. The first sound barrier 91 covers the storage space 84 with the front surface 13 of the box 12. The first soundproof wall 91 is provided with the first opening 28 described above. The first opening 28 is configured by a window hole that extends horizontally in the horizontal direction. The first blower 31 is attached to the first opening 28. In the first auxiliary box 86, the first ventilation port 22 is partitioned at a position farthest from the first opening 28.

  On the other hand, the second vent 24 is formed in the second auxiliary box 87. The second auxiliary box 87 is connected to a second soundproof wall 92 that extends along the front surface 13 of the box 12. The second soundproof wall 92 closes the flow path 85 and the storage space 84 at the front surface 13 of the box 12. The second opening 41 is formed in the second soundproof wall 92. The second opening 41 extends horizontally in the horizontal direction. A second blower 43 is attached to the second opening 41. In the second auxiliary box 87, the second vent 24 is partitioned at a position farthest from the second opening 41. The second opening 41 is connected to the flow passage 85.

  Thus, a flow path is established by the first vent 22, the first auxiliary space 88, the first opening 28, the storage space 84, the flow path 85, the second opening 41, the second auxiliary space 89, and the second vent 24. In addition, the same reference numerals are given to the configurations and structures equivalent to those of the electronic device storage boxes 11 to 11c. According to the electronic device storage box 11d, the same effects as those of the electronic device storage boxes 11 to 11c are realized. Moreover, the first and second blowers 31 and 43 are intensively arranged on the first door body 14. The structure of the electronic device storage box 11d can be simplified. Similarly, since the first and second vent holes 22 and 24 are intensively arranged on the front surface of the first door body 14, the degree of freedom in installing the electronic device storage box 11d is increased. In addition, the back surface 15 of the box 12 may be closed by a soundproof wall so as to be detachable or openable. The server computer 75 may be inserted into and removed from the box 12 from the back surface 15.

  As shown in FIG. 20, a predetermined interval may be secured between the first elastic packing 52 and the second elastic packing 53. For example, when the width of each of the first and second elastic packings 52 and 53 is set to 10 [mm], the interval may be set to about 10 [mm]. With such an interval, sound leakage can be more effectively suppressed as compared with the case where the first and second elastic packings 52 and 53 are disposed adjacent to each other. The sound insulation performance is improved by the electronic device storage box 11.

  In addition, as shown in FIG. 21, a step 95 is formed on the outer edges of the first door body 14 and the second door body 16 without interruption. On the other hand, a projecting piece 96 is formed on the outer edge of the box 12 without interruption. The protruding piece 96 meshes with the step 95. The gap between the first door body 14 and the box body 12 and the second door body 16 and the box body 12 is sealed over the entire length of the storage space 32 by the action of the engagement between the step 95 and the projecting piece 96. . Sound leakage is prevented from the gap. The operating sound of the server computer 75 is effectively confined in the storage space 32. The step 95 may be formed in the box 12. At this time, the protruding piece 96 may be formed on the first door body 14 or the second door body 16.

  In addition, as shown in FIG. 22, grooves 97 may be formed on the outer edges of the first door body 14 and the second door body 16 without interruption. On the other hand, the protruding piece 98 is formed on the outer edge of the box 12 without interruption. The projecting piece 98 is fitted in the groove 97. Due to the fitting operation of the groove 97 and the projecting piece 98, the gap between the first door body 14 and the box body 12 and between the second door body 16 and the box body 12 is sealed over the entire length around the storage space 32. . Sound leakage is prevented from the gap. The operating sound of the server computer 75 can be effectively confined in the storage space 32.

  In addition, as shown in FIG. 23, the groove 97 may be formed in the box 12. At this time, the projecting piece 98 is formed on the first door body 14 or the second door body 16. In addition, the elastic packing 99 is attached to the outer edges of the first door body 14 and the second door body 16 without interruption. The elastic packing 99 may be disposed outside the groove 97 and the projecting piece 98, for example. According to such a structure, the clearance between the first door body 14 and the box body 12 and the second door body 16 and the box body 12 is sealed over the entire length around the storage space 32. Sound leakage is prevented from the gap. The operating sound of the server computer 75 is effectively confined in the storage space 32.

  As shown in FIG. 24, for example, when replacing the first blower 31, for example, the first blower 31 is removed from the first opening 28. The first blower 31 includes a cover 102 that houses the impeller 101. The cover 102 defines the cover main body 102a. For example, a pair of hooks 102b are integrated with the side edge of the cover body 102a at a predetermined interval. The hook 102b protrudes from the cover body 102a while being bent. A flat plate portion 102c is integrated with the other side edge of the cover body 102a. Wiring and connectors are attached to the back surface of the flat plate portion 102c. For example, a pair of through holes 103 are formed in the flat plate portion 102c.

  On the other hand, for example, a pair of elongated holes 104 are formed in the first soundproof wall body 26 at a predetermined interval adjacent to one side edge of the first opening 28. The long holes 104 are arranged at intervals corresponding to the hooks 102 b of the first blower 31. For example, a pair of screw holes 105 are formed in the first soundproof wall 26 adjacent to the other side edge of the first opening 28. The screw hole 105 corresponds to the aforementioned through hole 103. A sound absorbing material 51 is partially disposed in the first opening 28. In addition, the 2nd air blower 43 should just be comprised similarly to the 1st air blower 31. FIG.

  When attaching the first blower 31, the hook 102 b is inserted into the elongated hole 104. The front surface of the hook 102 b is received by the back surface of the first soundproof wall 26. The cover body 102 a is received in the first opening 28. The through hole 103 of the flat plate portion 102 c is aligned with the screw hole 105 of the first soundproof wall 26. A screw (not shown) is screwed into the screw hole 105 from the through hole 103. Thus, the first blower 31 is attached to the first opening 28. The back surface of the flat plate portion 102 c is received by the sound absorbing material 51. By the action of the sound absorbing material 51, flapping of wirings and connectors arranged on the back surface of the flat plate portion 102c is avoided.

  (Supplementary Note 1) A box body that partitions a storage space sandwiched between the first surface and the second surface and opened by the first surface and the second surface with a soundproof wall, and is supported by the box body along the first surface The soundproof wall that spreads, the auxiliary box that is connected to the box to block the first surface of the box, divides the auxiliary space adjacent to the storage space with the soundproof wall sandwiched by the soundproof wall, and the soundproof wall An electronic device storage box, comprising: an opening that spatially connects the storage space and the auxiliary space; and a vent formed in the auxiliary box at a position facing the soundproof wall.

  (Additional remark 2) The electronic device storage box of Additional remark 1 WHEREIN: The soundproof wall of the said auxiliary | assistant box body is comprised from a sound insulating material, The electronic device storage box characterized by the above-mentioned.

  (Additional remark 3) The electronic device storage box of Additional remark 1 WHEREIN: A sound-absorbing material is attached to the inward surface of the soundproof wall of the said auxiliary | assistant box body, The electronic device storage box characterized by the above-mentioned.

  (Additional remark 4) The electronic device storage box of Additional remark 1 WHEREIN: The electronic apparatus storage box provided with the door body connected with a box body so that opening and closing is possible including the said sound-proof wall body and an auxiliary | assistant box body.

  (Supplementary note 5) In the electronic device storage box according to supplementary note 4, the step formed in one of the box and the door around the storage space, and the other of the box and the door around the storage space And an electronic device storage box, characterized in that the electronic device storage box is provided with a projecting piece formed on the step.

  (Appendix 6) In the electronic device storage box according to Appendix 4, a groove formed in one of the box and the door around the storage space, and the other of the box and the door around the storage space An electronic device storage box, comprising: a protrusion formed on the groove and fitted into the groove.

  (Supplementary note 7) In the electronic device storage box according to supplementary note 4, a first elastic packing extending around the storage space and attached to one of the box and the door, and a first elasticity around the storage space An electronic device storage box comprising: a second elastic packing attached to one of the box and the door outside the packing.

  (Additional remark 8) The electronic device storage box of Additional remark 7 WHEREIN: A predetermined space | interval is ensured between said 1st packing and 2nd packing.

  (Supplementary note 9) In the electronic device storage box according to supplementary note 1, a second soundproof wall body supported by the box body and extending along the second surface, and connected to the box body to block the second surface of the box body. The second auxiliary box body that partitions the second auxiliary space adjacent to the storage space with the second soundproof wall member therebetween, and the second soundproof wall member is provided in the second auxiliary box body, and the storage space and the second A second opening that spatially connects the auxiliary spaces and a second vent formed in the second auxiliary box at a position facing the second soundproof wall. Electronic equipment storage box.

  (Additional remark 10) The electronic device storage box of Additional remark 9 WHEREIN: The soundproof wall of a said 2nd auxiliary | assistant box body is comprised from a sound insulating material, The electronic device storage box characterized by the above-mentioned.

  (Additional remark 11) The electronic device storage box of Additional remark 9 WHEREIN: A sound-absorbing material is attached to the inward surface of the soundproof wall of a said 2nd auxiliary | assistant box body, The electronic device storage box characterized by the above-mentioned.

  (Supplementary note 12) In the electronic device storage box according to supplementary note 9, the electronic device storage box includes a second door body that includes the second soundproof wall body and the second auxiliary box body and is connected to the box body so as to be freely opened and closed. Electronic equipment storage box.

  (Supplementary note 13) In the electronic device storage box according to supplementary note 12, a step formed in one of the box body and the second door body around the storage space, and the box body and the first step around the storage space. An electronic device storage box, comprising: a protrusion formed on the other of the two door bodies and meshed with the step.

  (Supplementary note 14) In the electronic device storage box according to supplementary note 12, a groove formed in one of the box and the second door around the storage space, and the box and the second around the storage space. An electronic device storage box comprising: a protrusion formed on the other of the two door bodies and fitted into the groove.

  (Supplementary note 15) In the electronic device storage box according to supplementary note 12, a first elastic packing that extends around the storage space and is attached to either the box body or the second door body, and around the storage space An electronic device storage box comprising: a second elastic packing attached to one of the box and the second door outside the first elastic packing.

  (Additional remark 16) The electronic device storage box of Additional remark 15 WHEREIN: A predetermined space | interval is ensured between said 1st packing and 2nd packing.

  (Supplementary Note 17) A box body that is sandwiched between the first surface and the second surface and defines a storage space that is opened by the first surface and the second surface with a soundproof wall, and is supported by the box body along the first surface The soundproof wall that spreads, the auxiliary box that is connected to the box to block the first surface of the box, divides the auxiliary space adjacent to the storage space with the soundproof wall sandwiched by the soundproof wall, and the soundproof wall An electronic device storage box comprising: an opening that spatially connects the storage space and the auxiliary space; and a vent formed in the auxiliary box at a position farthest from the opening.

  (Additional remark 18) The electronic device storage box of Additional remark 17 WHEREIN: The soundproof wall of the said auxiliary | assistant box body is comprised from a sound insulating material, The electronic device storage box characterized by the above-mentioned.

  (Supplementary note 19) The electronic device storage box according to supplementary note 17, wherein a sound absorbing material is attached to an inward surface of the soundproof wall of the auxiliary box body.

  (Additional remark 20) The electronic device storage box of Additional remark 17 WHEREIN: The electronic device storage box provided with the door body connected with a box body so that opening and closing is possible including the said sound-proof wall body and an auxiliary | assistant box body.

  (Supplementary note 21) In the electronic device storage box according to supplementary note 20, the step formed in one of the box and the door around the storage space, and the other of the box and the door around the storage space And an electronic device storage box, characterized in that the electronic device storage box is provided with a projecting piece formed on the step.

  (Supplementary note 22) In the electronic device storage box according to supplementary note 20, a groove formed in one of the box and the door around the storage space, and the other of the box and the door around the storage space An electronic device storage box, comprising: a protrusion formed on the groove and fitted into the groove.

  (Supplementary note 23) In the electronic device storage box according to supplementary note 20, a first elastic packing extending around the storage space and attached to either the box or the door, and a first elasticity around the storage space An electronic device storage box comprising: a second elastic packing attached to one of the box and the door outside the packing.

  (Supplementary note 24) The electronic device storage box according to supplementary note 23, wherein a predetermined interval is secured between the first packing and the second packing.

  (Supplementary Note 25) In the electronic device storage box according to supplementary note 17, the second soundproof wall body supported by the box body and extending along the second surface, and the second soundproof wall body connected to the box body to block the second surface of the box body. The second auxiliary box body that partitions the second auxiliary space adjacent to the storage space with the second soundproof wall member therebetween, and the second soundproof wall member is provided in the second auxiliary box body, and the storage space and the second A second opening that spatially connects the auxiliary spaces, and a second ventilation hole formed in the second auxiliary box at a position farthest from the second opening. Equipment storage box.

  (Additional remark 26) The electronic device storage box of Additional remark 25 WHEREIN: The soundproof wall of a said 2nd auxiliary | assistant box body is comprised from a sound insulating material, The electronic device storage box characterized by the above-mentioned.

  (Supplementary note 27) The electronic device storage box according to supplementary note 25, wherein a sound absorbing material is attached to an inward surface of the soundproof wall of the second auxiliary box body.

  (Supplementary note 28) The electronic device storage box according to supplementary note 25, further comprising a second door body that includes the second soundproof wall body and the second auxiliary box body and is connected to the box body so as to be freely opened and closed. Electronic equipment storage box.

  (Supplementary Note 29) In the electronic device storage box according to supplementary note 28, a step formed around one of the box and the second door around the storage space, and the box and the second around the storage space. An electronic device storage box, comprising: a protrusion formed on the other of the two door bodies and meshed with the step.

  (Supplementary Note 30) In the electronic device storage box according to supplementary note 28, a groove formed in one of the box and the second door around the storage space, and the box and the second around the storage space. An electronic device storage box comprising: a protrusion formed on the other of the two door bodies and fitted into the groove.

  (Supplementary Note 31) In the electronic device storage box according to supplementary note 28, a first elastic packing that extends around the storage space and is attached to either the box body or the second door body, and around the storage space An electronic device storage box comprising: a second elastic packing attached to one of the box and the second door outside the first elastic packing.

  (Additional remark 32) The electronic device storage box of Additional remark 31 WHEREIN: A predetermined space | interval is ensured between said 1st packing and 2nd packing, The electronic device storage box characterized by the above-mentioned.

  (Supplementary Note 33) A box body that divides the storage space, a door body that is openably and closably connected to the box body, covers the opening of the storage space, extends around the opening, and is attached to either the box body or the door body And a second elastic packing that extends in parallel to the first elastic packing at a position spaced apart from the first elastic packing around the opening and is attached to either the box or the door. An electronic device storage box comprising:

1 is a perspective view schematically showing an electronic device storage box according to a first embodiment of the present invention. 1 is a perspective view schematically showing an electronic device storage box according to a first embodiment of the present invention. It is a perspective view which shows a mode that a 1st door body is open | released roughly. It is a perspective view which shows a mode that a 2nd door body is open | released roughly. FIG. 4 is an exploded perspective view schematically showing a storage space, a first auxiliary space, and a second auxiliary space. It is sectional drawing which shows roughly the internal structure of the electronic device storage box which concerns on 1st Embodiment of this invention. It is a partial expanded sectional view which shows roughly the structure of the packing member which concerns on one specific example. It is a block diagram which shows the control system of this invention. It is a perspective view which shows a mode that an electronic device is mounted schematically. It is sectional drawing which shows roughly the mode of the airflow produced | generated with the electronic device storage box in operation. It is a graph which shows the relationship between an opening area ratio and a pressure loss. It is a graph which shows the relationship between the distance from a vent hole and rack space, and the noise reduction effect. It is a perspective view which shows roughly the electronic device storage box which concerns on 2nd Embodiment of this invention. It is a perspective view which shows a mode that a 1st door body is open | released roughly. It is sectional drawing which shows schematically the internal structure of the electronic device storage box which concerns on 2nd Embodiment of this invention. It is a perspective view which shows roughly the electronic device storage box which concerns on 3rd Embodiment of this invention. It is a perspective view which shows roughly the electronic device storage box which concerns on 4th Embodiment of this invention. It is a perspective view which shows roughly the electronic device storage box which concerns on 5th Embodiment of this invention. It is sectional drawing which shows schematically the internal structure of the electronic device storage box which concerns on 5th Embodiment of this invention. It is a partial expanded sectional view which shows roughly the structure of the packing member which concerns on another specific example. It is a partial expanded sectional view which shows roughly the structure of the processus | protrusion and level | step difference which concern on one specific example. It is a partial expanded sectional view which shows roughly the structure of the protrusion and groove | channel which concern on one specific example. It is a partial expanded sectional view which shows roughly the structure of the protrusion and groove | channel which concern on another specific example. It is a partial expansion perspective view which shows roughly the attachment structure of an air blower.

Explanation of symbols

11-11d Electronic equipment storage box, 12 box, 13 1st surface (front), 14 door (1st door), 15 2nd surface (back), 16 2nd door, 21 auxiliary box ( (First auxiliary box), 22 vent (first vent), 23 second auxiliary box, 24 second vent, 26 soundproof wall (first soundproof wall), 28 opening (first opening) ), 32 storage space, 38 second soundproof wall body, 41 second opening, 47 auxiliary space (first auxiliary space), 48 second auxiliary space, 51 sound absorbing material, 52 first elastic packing, 53 second Elastic packing, 95 steps, 96 protrusions, 97 grooves, 98 protrusions.

Claims (10)

  A box body that partitions a storage space sandwiched between the first surface and the second surface and opened by the first surface and the second surface with a soundproof wall, and a soundproof wall body that is supported by the box body and extends along the first surface And an auxiliary box body that is connected to the box body, closes the first surface of the box body, and divides the auxiliary space adjacent to the storage space with the soundproof wall body between the soundproof wall and the soundproof wall body, An electronic device storage box comprising: an opening spatially connecting the space and the auxiliary space; and a vent formed in the auxiliary box at a position facing the soundproof wall.   2. The electronic device storage box according to claim 1, wherein the soundproof wall of the auxiliary box is made of a sound insulating material.   The electronic device storage box according to claim 1, wherein a sound absorbing material is attached to an inward surface of the soundproof wall of the auxiliary box body.   The electronic device storage box according to claim 1, further comprising a door body that includes the soundproof wall body and the auxiliary box body and is connected to the box body so as to be opened and closed.   5. The electronic device storage box according to claim 4, wherein the step is formed on one of the box and the door around the storage space, and is formed on the other of the box and the door around the storage space. And an electronic device storage box characterized by comprising a projecting piece engaged with the step.   5. The electronic device storage box according to claim 4, wherein a groove is formed in one of the box and the door around the storage space, and is formed in the other of the box and the door around the storage space. And an electronic device storage box, comprising: a projecting piece fitted into the groove.   5. The electronic device storage box according to claim 4, wherein the first elastic packing extends around the storage space and is attached to one of the box and the door, and the outside of the first elastic packing around the storage space. And a second elastic packing attached to one of the box and the door.   2. The electronic device storage box according to claim 1, wherein the second soundproof wall supported by the box and extending along the second surface, the second soundproof wall connected to the box and closing the second surface of the box, A second auxiliary box that divides the second auxiliary space adjacent to the storage space with the soundproof wall with the soundproof wall interposed therebetween, and the second soundproof wall, and the storage space and the second auxiliary space And a second vent formed in the second auxiliary box at a position facing the second soundproof wall. Storage box.   A box body that partitions a storage space sandwiched between the first surface and the second surface and opened by the first surface and the second surface with a soundproof wall, and a soundproof wall body that is supported by the box body and extends along the first surface And an auxiliary box body that is connected to the box body, closes the first surface of the box body, and divides the auxiliary space adjacent to the storage space with the soundproof wall body between the soundproof wall and the soundproof wall body, An electronic device storage box comprising: an opening spatially connecting the space and the auxiliary space; and a vent formed in the auxiliary box at a position farthest from the opening.   A box body that partitions the storage space, a door body that is openably and closably connected to the box body, and that extends around the opening and is attached to either the box body or the door body. A packing and a second elastic packing that extends in parallel to the first elastic packing at a position spaced apart from the first elastic packing around the opening and is attached to either the box or the door. Electronic equipment storage box.

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