JPH10303579A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a weight to load a rail, by separating a basic rack which is composed of a CPU requiring a high frequency of maintenances and exchanges and so on and which is provided with a slide rail to be possible to draw forward, and a power supply rack composed of an AC/DC part of a low maintenance frequency, and by mounting on a cabinet from an inverted direction. SOLUTION: Male slide rails 10 are provided on the both side surfaces of a basic rack, female slide racks are provided at the left and the right sides of a flame 46 of a cabinet 45 by a slide rail bracket 50, and the basic rack is mounted so as to be able to move connected rails 10 and 9 forward. A power source rack 20 is provided with a bracket part 12 at the left and right sides and fixes with the mount flame 46 by assembling screws 51. Mount rails 49 for the power source rack are provided on the left and the right mount flames 46 and mounts from the inverted direction of the basic rack being mounted. By the means a weight to lord the slide rails which are provided on the basic rack can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing structure of an electronic device in which a main body of a computer processing device, a communication device, or the like is formed in a box shape mountable in a cabinet, and a cooling method.

[0002]

2. Description of the Related Art As described in Japanese Patent Application No. 7-266813, a conventional high-performance computer such as a computer which can be mounted in a cabinet is equipped with all units mounted in one rack. It was mounted on the cabinet with slidable rails and no consideration was given to weight gain.

[0003] Further, the device has a fixed height, and the unit mounted inside can only mount a product of a predetermined height.
No consideration was given to increasing the volume of the internal unit.

A logical operation unit, which is a high heat generating element, is disposed on the intake side of the cooling flow path of the entire apparatus, and a substrate unit for inputting / outputting data and a power supply disposed downstream of the logical operation unit. The unit is cooled by the air whose temperature has been raised by the logical operation unit, and no consideration has been given to a reduction in the life of the substrate unit or the power supply unit or an increase in the calorific value of the logical operation unit.

[0005]

The above prior art is disclosed in FIG.
As shown in FIG. 5, the increase in the volume and the weight of the internal unit due to the improvement of the performance and the like are not taken into consideration, and the increase in the mounting space due to the expansion and the maintainability become problems.

Further, the logical operation unit accompanying performance improvement and the like,
An increase in the amount of heat generated by the power supply unit and an increase in the wind temperature of the logical operation unit cause a problem of a reduction in the life of the downstream unit, and this is not taken into account. It was necessary to think about conversion.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a rack is provided with a board unit for inputting / outputting data which is relatively frequently exchanged for maintenance, a CPU unit for performing arithmetic processing, and a DC / DC converter. Rack and a power rack equipped with an AC / DC unit with relatively low maintenance replacement frequency.
The basic rack has a protruding portion and is mounted on the cabinet by rails that can slide back and forth, and the power supply rack is fixed to the cabinet so as to overlap a part of the basic rack from a direction opposite to the basic rack. The structure is as follows.

Further, when the apparatus is mounted on a cabinet, the apparatus is mounted on a column of the cabinet so that a holder of the apparatus is in contact with an inner wall of the cabinet, and a structure is provided which also functions as a partition plate for separating individual apparatuses in the cabinet. It was done.

In a power supply unit including a plurality of power supply units having a cooling fan therein, a partition plate for preventing circulation of intake and exhaust air of the power supply unit in the housing is provided on a fixture for mounting the power supply unit to the housing. This is a structure having both.

Further, the basic rack is divided into an upper case and a lower case in the height direction, and the division position is matched with the position of the minimum rack mounting unit of the cabinet.

In addition, a logical operation unit of the CPU unit, which has a relatively high frequency of maintenance and replacement, is arranged in a protruding portion protruding from the divided lower case, and has a structure capable of maintenance and replacement simply by removing the upper case. is there.

In addition, a partition plate is provided between the lower case and the upper case, and a flow path of a logical operation unit of the CPU unit in the protruding portion is provided.
Other parts of the CPU part in the lower case, and a substrate part,
The structure is such that the flow path of the DC / DC converter is separated to prevent a rise in wind temperature of the logical operation unit, which is a high heat generating element, from adversely affecting the downstream side.

Also, a plurality of logical operation boards in the CPU section are mounted on the front and back of a base board of the CPU section, and further, cooling fans are provided on the logical operation boards on the front and back, respectively. This is a structure in which two flow paths are formed so as to be located at the center of the flow path.

By mounting the logical operation boards on both sides as described above, the shape of the CPU unit box on which these are mounted is made to be a convex part, and the convex part covers the upper surface of the other package and presses it down. It has a structure that also prevents removal of the package.

Further, by arranging the cooling fan in the CPU section on the downstream side of the logical operation board, it is possible to secure a space in the intake / exhaust section. A hook portion for hooking is provided, and a structure is provided which also has a handle for carrying and inserting / removing the CPU portion.
Further, by arranging the cooling fan as described above, the cooling fan is located inside the apparatus, and the cooling fan efficiency is improved by securing an intake space, and noise is reduced.

In the CPU, a cooling fan having a smaller rated air flow than the cooling fan is provided downstream of the cooling fan for cooling the logical operation board, which is a high heat generating element, and the cooling fan and the flow path intersect with each other. And, provided so as to directly inhale from the outside of the device, further provided a wind direction plate at a portion where those flow paths intersect, by the logic operation board, to mix the low temperature air outside the device with the air whose temperature has risen, This is a structure that reduces the exhaust temperature of the device. Furthermore, by providing a wind direction plate, the structure is such that a cooling fan having a small rated air volume for taking in outside air is prevented from becoming an air curtain of a cooling fan for cooling the logical operation board due to crossing of flow paths. It is.

Further, a duct is provided in parallel between the logical operation boards of the high heat generating element, and the duct has a hole through which a part of a heat sink with a cooling fan mounted on the logical operation board is inserted. The heat sink is divided into two parts near the center, the lower part of the duct is fixed to a box part which is a box body of the CPU unit, and the upper part of the duct is mounted on the box part after mounting the logical operation board.

[0018]

FIG. 1 is a perspective view showing an external appearance of an electronic apparatus according to an embodiment of the present invention as viewed from the front. FIG. 2 is an external perspective view of an electronic apparatus according to an embodiment of the present invention as viewed from the rear. FIG. 3 shows an internal mounting diagram of an electronic apparatus according to an embodiment of the present invention. FIG. 4 is an exploded perspective view of an electronic apparatus according to an embodiment of the present invention when the cabinet 45 is mounted.

This device is a CPU unit 2 for performing arithmetic processing.
6. An I / O unit section on which a plurality of I / O packages 34 for inputting and outputting data are mounted, and a DC / DC converter unit 3 for supplying electricity at a required voltage to them
5 and a plurality of DC / DC converters 36
The power supply unit includes a C / DC unit and a plurality of AC / DC converter units 41 for supplying rectified electricity to the DC / DC unit. CPU unit 26, I / O
The unit and the DC / DC unit are mounted on a basic rack 1 having a protruding portion, and these are connected via a platter board 60 and a connection cable. The power supply unit is mounted on the power supply rack 20 and separately mounted on different racks. The basic rack 1 and the power supply rack 20 are provided with a power supply connector 16 and a signal control connector 17, respectively.
Each rack is joined by a power supply cable 18 and a signal control cable 19.

Male slide rails 10 are provided on both sides of the basic rack 1. Female slide rails 9 are provided on the left and right sides of the mount frame 46 of the cabinet 45 by slide rail brackets 50. These male slide rails are provided. The basic rack 1 is mounted so that the basic rack 1 can operate forward by engaging the female slide rail 9 with the female slide rail 9.
Further, a stopper 11 is provided on the male-mouth slide rail 10, so that the male slide rail 10 is temporarily stopped in a pulled-out state. Further, mounting rails 48 for preventing the rack from falling off are mounted on the left and right mounting frames 46 so as to be located on the bottom surface of the basic rack. Further, the basic rack 1 is provided with a handle 13 for facilitating the above-described operation. When the basic rack 1 is housed in the cabinet 45, the left and right bracket portions 12 are fixed to the mount frame 46 with mounting screws 51. Further, the basic rack 1 is provided with an operation panel 14 for operating, stopping, displaying an alarm and the like of the apparatus.

The power supply rack 20 is provided with a power supply connector 25 and a power switch 24.
N / OFF is performed. Also, bracket portions 12 for mounting on the cabinet 45 are provided on the left and right sides, and are fixed to the mount frame 46 with mounting screws 51. Further, the left and right mounting frames 46 are provided with mounting rails 49 for a power supply rack.
Are provided to hold the power supply rack.
At this time, the power supply rack 20 is mounted from a direction opposite to the mounting direction of the basic rack 1.

As described above, the CP having a relatively high maintenance frequency is used.
The basic rack 1 on which the U unit 26 and the I / O package 34 are mounted has a relatively low maintenance frequency and a heavy AC /
Power supply rack 20 mounted with DC converter unit 41
And the power supply cable 18 and the signal control cable 1
9 and the racks are mounted on the cabinet 45 from opposite directions so that the basic rack 1
It is possible to reduce the weight applied to the slide rails provided in the cabinet, and to improve the workability of mounting on the cabinet and the reliability. Also, both racks are cabinet 4
5, the power supply rack 20 is connected to the I of the basic rack 1.
It is located above the I / O package 34 and the DC / DC converter unit 35. In the case of integration, the I / O package 34 and the DC / DC converter unit 35 cannot be maintained unless the power supply unit is removed. On the other hand, by dividing and individually mounting on the cabinet 45,
Maintenance can be easily performed simply by removing the rear upper cover 3, and the mounting space can be effectively utilized.

Further, by providing a rack partitioning portion 48a on the mount rail 48 so as to be in contact with the inner wall of the cabinet side plate 47, the cabinet 45 can be partitioned in units of each device in the horizontal direction, and the exhaust of the device is arranged on the side surface. In this case, it is possible to prevent the temperature inside the cabinet 45 from rising due to the exhaust air.

FIG. 5 is an exploded perspective view of a power supply rack 20 showing one embodiment of the present invention. FIG. 6 shows a cooling flow diagram of the power supply rack 20 along the line CC of FIG. 3 showing one embodiment of the present invention.

The power supply rack 20 is covered with a power supply rack cover 21. The power supply rack cover 21 is provided with a power supply rack intake port 22, and a power supply rack exhaust port 23 is provided on the opposite side.

Further, the power supply rack 20 has a plurality of AC / D
C converter unit 41 is mounted, and
The control signal from the / DC converter unit 41 is connected to the signal control board 42, and is output by the signal control connector 17 provided on the signal control board 42. The power supply from each AC / DC converter unit 41 is connected to the power supply connector 16 and output. FIG.
As shown in the figure, the AC / DC converter unit 41
It has an AC / DC converter unit cooling fan 44, which draws in air from the cooling fan side and exhausts it through a power supply unit exhaust port 53. The AC / DC converter unit 41 is attached to the power supply rack 20 by a power supply unit bracket 54 on a side closer to the AC / DC converter unit cooling fan 44 than the power supply unit exhaust port 53. By enlarging the power supply unit bracket 54 so as to completely separate the intake side and the exhaust side of the AC / DC converter unit 41, the power supply unit is sucked in from the power supply rack intake port 22 by the cooling fan 44 for the AC / DC converter unit. The air is exhausted from the power supply rack exhaust port 23 through the exhaust port 53, and the AC / AC
The exhaust of the DC converter unit 41 is prevented from being sucked in again, so that the intake and exhaust can be performed smoothly, and the number of components can be reduced by combining the partition plate and the bracket.

FIG. 7 is a front view of an electronic apparatus according to an embodiment of the present invention when mounted on a cabinet.

The cabinet 45 has rack mounting units. For example, in a 19-inch cabinet, it is represented by "U", and the minimum rack mounting unit 1U is 44.45 mm.
The height of the device to be mounted is set in multiples of 1U, and the device can be mounted efficiently. The basic rack 1 is divided into an upper case 2 and a lower case 4 which form a projecting portion in the vertical direction. By setting the upper and lower case boundaries 52 to a position corresponding to the rack mounting unit, the internal mount of the basic rack 1 can be lowered. Case 4
If it fits inside, replace the upper case 2
It can be mounted on the cabinet 45 as a low-height device.

FIG. 8 is an exploded perspective view of a logical operation board of an electronic apparatus showing one embodiment of the present invention. FIG. 9 shows a cooling flow chart of the lower case according to the AA section of FIG. 3 showing one embodiment of the present invention. FIG. 10 shows an embodiment of the present invention in FIG.
The cooling flow path figure of the upper case by the -B cross section is shown. FIG. 11 is an exploded perspective view of a CPU unit of an electronic apparatus according to an embodiment of the present invention.

As shown in FIG. 3, the CPU unit 26 is mounted on the CPU base board 26e as a high-heat-generating body on both sides, and a plurality of logical operation boards 26a for performing arithmetic processing are mounted on each side. Cooling fan 32
Are provided on the downstream side of the logical operation board 26a, and form two flow paths with the CPU base board 26e as a boundary. This flow path is taken in from the upper case intake port 7 and exhausted from the upper case exhaust port 8 to the outside of the apparatus. Further, when the CPU unit 26 is mounted on the basic rack 1, the logical operation board 26a is disposed at a position protruding from the lower case 4. Thus, by removing the upper case 2 as shown in FIG. 8, it is possible to replace or add the logical operation board 26a without removing the CPU unit 26. In addition, by disposing the logical operation board cooling fan 32 on the downstream side of the logical operation board 26a, the position of the fan is located inside the apparatus, and the noise caused by the logical operation board cooling fan 32 can be reduced. Further, by forming two independent flow paths with the CPU base board 26e as a boundary, the front and back logical operation boards 26a are not affected by cooling, and the cooling fan for the front and back logical operation boards is used. Even if 32 stops due to a failure, one of the logical operation boards 26a can operate normally.

Further, on the downstream side of the logical operation board cooling fan 32, an exhaust gas mixture which intersects the flow path of the logical operation board cooling fan 32 and has a smaller rated air flow than the logical operation board cooling fan 32. A cooling fan 33 is provided to take in outside air from the upper case intake port 7 and mix it with the exhaust of the logical operation board cooling fan 32. Also, the cooling fan 32 for the logical operation board and the cooling fan 3 for the exhaust mixing
A wind direction plate 58 is provided at a portion where the third flow path intersects, and the exhaust mixing cooling fan 33 serves as an air curtain of the logical operation board cooling fan 32 to prevent the cooling performance from being lowered. Thereby, the cooling fan 32 for the logical operation board
Can be reduced and the exhaust air can be exhausted to the outside of the basic rack 1, and the influence of the rise in wind temperature on other devices in the cabinet 45 can be reduced.

On one side of the CPU base board 26e, an OSC package 26 for controlling the arithmetic processing speed is provided.
b, MS middle card 26c for storing calculation processing results, BA package 26d having a role of mediating different signal lines
Is mounted, and the CPU unit 26 is connected to the basic rack 1
Are mounted in the lower case 4. The cooling flow path is taken in from the lower case intake port 5 by the CPU unit downstream cooling fan 38 mounted on the lower case 4 to cool the OSC package 26b, the MS middle card 26c, and the BA package 26d. The flow path is bent at a right angle on the side surface of the base rack 1, passes through the inside of the I / O package 34, and is exhausted by the lower case exhaust cooling fan 39 on the back surface of the basic rack 1. The other flow paths in the lower case 4 are connected to the DC / DC cooling fan 37 and the DC / DC converter unit cooling fan 40 through the lower case intake port 5.
, And is exhausted by the lower case exhaust cooling fan 39 on the back of the basic rack 1. Further, a partition 59 for the upper and lower cases is provided between the flow path on the upper case 2 side and the flow path on the lower case 4 side to separate the respective flow paths of the protruding part and the lower case part. Thus, it is possible to prevent the high-temperature exhaust of the logic operation board 26a, which is a high heat generating element, from flowing into the lower case, and the lower case 4 side is not affected by the heat generated by the logic operation board 26a.

The logical operation board 2 of the CPU unit 26
6a is mounted on both sides of the CPU base board 26e, and the other OSC package 26b, MS middle card 26c, and BA package 26d are mounted on one side of the CPU base board 26e. When it is formed and mounted on the basic rack 1,
The convex portion covers the upper surface of the DC / DC converter 36,
In addition, it has a structure for holding down, and also serves to prevent the DC / DC converter 36 from being detached.

FIG. 12 is a cross-sectional view of a cooling flow path of the logical operation board section taken along the line DD of FIG. 11 showing one embodiment of the present invention.
FIG. 13 is a perspective view showing how to hold a CPU unit according to an embodiment of the present invention.

As shown in FIG. 12, by arranging the cooling fan 32 for the logical operation board on the downstream side of the logical operation board 26a, a space is formed on the intake side and the exhaust side of the CPU unit 26. A handle portion 57 formed by cutting and raising a sheet metal so that a finger can be hooked is provided, as shown in FIG.
By holding the handle 57, insertion and removal and transportation of the CPU unit 26 are enabled.

FIG. 14 is an exploded perspective view of a duct showing an embodiment of the present invention.

The detailed cooling structure of the logical operation board 26a is as follows.
As shown in FIG. 12, a part of a heat sink 27 with a cooling fan having a cylindrical shape enters a hole 30 for a heat sink with a cooling fan of a box-shaped duct 29 and sucks air from above the heat sink 27 with a cooling fan. The air flows toward the substrate surface 26a, and is exhausted by the logical operation substrate cooling fan 32 on the downstream side. The duct 29 has S
The RAM cooling slit 31 is provided, and is sucked by the logical operation board cooling fan 32 to cool the SRAM 28 on the back surface of the logical operation board 26a. As shown in FIG. 14, the duct 29 is divided into an upper duct 29a and a lower duct 29b from the center of a heat sink hole 30 with a cooling fan.
The upper duct 29a is attached to the duct cover 29c.
Are connected in a comb-like manner to the plurality of logical operation boards 26a.
After the 6a is mounted, the upper duct 29a connected to the duct cover 29c is attached so as to cover the heat sink 27 with a cooling fan. This allows
A plurality of logical operation boards 26a ducts 29 can be easily removed at a time.

[0038]

Since the present invention is configured as described above, the following effects can be obtained.

A basic rack comprising a CPU unit, a board unit, and a DC / DC converter, which has a relatively high maintenance and replacement frequency, and which is provided with a slide rail so that it can be pulled out forward, And a power supply rack composed of an AC / DC unit, which is a heavy object, and is mounted on a cabinet from opposite directions, thereby reducing the weight of a part that can be pulled out and mounting workability. Can be improved. Further, the mounting space in the cabinet can be efficiently used. Further, the maintenance and exchangeability of parts below the power supply rack can be improved.

Further, by providing a partition so that the mount rail holding the device is in contact with the inner wall of the cabinet side plate, each device mounted on the cabinet is partitioned in the horizontal direction, and other devices due to an increase in wind temperature or the like. Adverse effects can be prevented.

A plurality of ACs having their own cooling fans
In a power supply rack on which a DC / DC converter unit is mounted, a bracket for attaching the AC / DC converter unit to the power supply rack also serves as a partition plate for separating the intake and exhaust of the AC / DC converter unit, so that the AC in the power supply rack is provided. The temperature can be prevented from rising due to the circulation of the intake / exhaust of the / DC converter unit, the reliability of the power supply can be ensured, and the cost can be reduced by reducing the number of parts.

Further, the housing is divided into an upper case and a lower case in the height direction, and the division position is matched with the position of the minimum mounting unit of the cabinet, so that the upper case and the lower case are aligned. It is possible to form a device having a different height simply by replacing the device, thereby improving the versatility of the device.

Further, by disposing the logical operation board of the CPU unit, which is relatively frequently replaced, at a position protruding from the divided lower case, maintenance and replacement can be performed without removing the CPU unit by simply removing the upper case. Becomes possible,
Maintenance exchangeability can be improved.

A partition plate is provided between the lower case and the upper case, and a flow path for cooling the logical operation board of the upper case is provided.
Normally cooling the lower case side by preventing the flow of high-temperature exhaust gas into the lower case side of the logic operation board, which is a high heat generating element, by separating the flow path that cools other units in the lower case It is possible to improve the reliability, and even if there is an increase in the amount of heat generated by the improvement in the performance of the logical operation board, the other cooling structures are not affected, so that the expandability can be improved.

Further, a plurality of logical operation boards in the CPU unit are mounted on the front and back of the CPU base board, and further, cooling fans for the logical operation boards are provided on the front and back logical operation boards, respectively. By forming two flow paths, the front and back logical operation boards are not affected by cooling, and even if one of the front and back cooling fans stops due to a failure, one of the logical operation boards will normally operate It is operable and reliability can be improved.

Also, by mounting the logical operation board on both sides as described above, the shape of the box on which these are mounted is made convex, and when mounted on the device, the convex part presses down other packages from the top surface, By also preventing removal of other packages, the number of mounting screws can be reduced, and connection failure of the connector due to vibration during transportation of the device can be prevented, thereby reducing costs and improving reliability.

By arranging the cooling fan for the logic operation board in the CPU unit on the downstream side of the logic operation board, the cooling fan for the logic operation board is located at the center of the apparatus.
Low noise can be achieved. Furthermore, it is possible to secure a space in the intake / exhaust section, and a handle section is provided in the intake / exhaust opening,
The CPU unit can be easily transported, inserted and removed, and the space can be effectively used.

Further, a cooling fan having a smaller rated air flow than the cooling fan for the logical operation board is provided downstream of the cooling fan for the logical operation board which cools the logical operation board which is a high heat generating element in the CPU unit. The cooling fan and the flow path intersect with each other, and are provided so that air is directly taken in from the outside of the device. Thus, low temperature air outside the device can be mixed with air whose temperature has risen, and the exhaust temperature of the device can be reduced. In addition, it is possible to reduce the influence of an increase in wind temperature on other devices in the cabinet. Further, by providing a wind direction plate at a portion where the flow paths intersect, the crossing of the flow paths allows the cooling fan having a small rated air volume for taking in outside air to be an air curtain of the cooling fan for the logic operation board, It is possible to prevent the cooling performance of the cooling fan for the operation board from lowering.

Further, a duct is provided between the logic operation boards in parallel, and the duct has a hole for receiving a part of a heat sink with a cooling fan for cooling the logic operation board. It is divided into two near the center of the hole, the lower part of the duct is fixed to the CPU unit, the upper part of the duct is mounted on the CPU unit after mounting the logical operation board, and the upper part of the duct corresponds to the mounted logical operation board. By connecting the ducts to the duct cover in a comb shape, the ducts for a plurality of logical operation boards can be easily removed at a time, and maintenance and exchangeability of the logical operation boards can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view from the front of an electronic apparatus according to an embodiment of the present invention.

FIG. 2 is an external perspective view from the rear side of the electronic apparatus according to the embodiment of the present invention.

FIG. 3 is an internal mounting diagram of an electronic apparatus showing one embodiment of the present invention.

FIG. 4 is an exploded perspective view of the electronic apparatus according to the embodiment of the present invention when the cabinet is mounted.

FIG. 5 is an exploded perspective view of a power rack showing one embodiment of the present invention.

FIG. 6 is a cooling channel diagram of the power rack according to the embodiment taken along the line CC of FIG. 3;

FIG. 7 is a front view of the electronic apparatus according to the embodiment of the present invention when the cabinet is mounted.

FIG. 8 is an exploded perspective view of a logical operation board of the electronic apparatus according to the embodiment of the present invention.

FIG. 9 is a cooling flow diagram of the lower case according to the AA section of FIG. 3 showing one embodiment of the present invention.

FIG. 10 is a cross-sectional view of a cooling passage of the upper case, taken along the line BB in FIG. 3, showing one embodiment of the present invention.

FIG. 11 shows a CP of an electronic apparatus according to an embodiment of the present invention.
It is a U unit exploded perspective view.

FIG. 12 is a cooling flow diagram of the logical operation board section taken along the line DD of FIG. 11 showing one embodiment of the present invention.

FIG. 13 is a perspective view showing how to hold the CPU unit according to the embodiment of the present invention.

FIG. 14 is an exploded perspective view of a duct showing one embodiment of the present invention.

FIG. 15 is a perspective view of an electronic apparatus showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Basic rack, 2 ... Upper case, 3 ... Rear upper cover, 4
... lower case, 5 ... lower case intake port, 6 ... lower case exhaust port, 7 ... upper case intake port, 8 ... upper case exhaust port, 9 ... female port slide rail, 10 ... male port slide rail, 11 ...
Stopper, 12 ... Flange, 13 ... Handle, 14 ...
Operation panel, 15: Package slit, 16: Power supply connector, 17: Signal control connector, 18: Power supply cable, 19: Signal control cable, 20: Power supply rack, 21: Power supply rack cover, 22: Power supply rack intake Mouth, 23: Power supply rack exhaust port, 24: Power switch, 2
5 Power connector, 26 CPU unit, 26a Logical operation board, 26b OSC package, 26c M
S middle card, 26d… BA package, 26e… C
PU base board, 27 heat sink with cooling fan, 28 SRAM, 29 duct, 29a upper duct, 29b lower duct, 29c duct cover, 30 duct
Hole for heat sink with cooling fan, 31 ... Slit for SRAM cooling, 32 ... Cooling fan for logical operation board, 33
... cooling fan for exhaust mixing, 34 ... I / O package, 3
5 DC / DC converter unit, 36 DC / DC
Converter, 37 ... DC / DC cooling fan, 38 ... C
PU unit downstream cooling fan, 39: Lower case exhaust cooling fan, 40: DC / DC converter unit cooling fan, 41: AC / DC converter unit, 42
... signal control board, 44 ... cooling fan for AC / DC converter unit, 45 ... cabinet, 46 ... mount frame, 47 ... cabinet side plate, 48 ... mount rail, 48a ... rack partitioning part, 49 ... power supply rack mount rail, 50 ... Slide rail bracket, 51 ...
Mounting screw, 52: Upper and lower case boundary, 53: Power supply unit exhaust port, 54: Power supply unit bracket, 55: Wind direction arrow, 56: Hand, 57: Handle, 58: Wind direction plate, 59 ...
Partition for upper and lower cases, 60 ... Platter board.

Claims (3)

[Claims] 1. A board unit for inputting / outputting data, a CPU unit for performing arithmetic processing, an AC / DC unit for supplying power, and a DC / DC unit
In the electronic device device comprising a converter unit, mounted on a cabinet, and having a substantially rectangular parallelepiped shape as a whole, the electronic device device is located at an integer multiple of the minimum rack mounting unit of the cabinet from the bottom of the electronic device device,
The upper case is divided into an upper case and a lower case serving as a basic rack, and the upper case is further divided into a power supply rack and a protruding portion from which the basic rack protrudes. AC / D
C portion is mounted, the basic rack has an L-shape having the protrusion at one corner of the upper surface of a substantially rectangular parallelepiped shape, and a substrate portion, a CPU portion,
A DC / DC converter unit is mounted, and the CPU unit has a logic operation board on which a logic operation element of a high heating element is mounted, a memory, a control circuit board, and a cooling fan mounted on a base board for supplying signals and electricity. Wherein the logical operation board is mounted on a portion of the base substrate that protrudes into the upper case portion, which is a protrusion of a basic rack, wherein the logical operation element is changed to another logical operation element, If the rack cannot be fully mounted, the height of the upper cover of the basic rack is increased by an integral multiple of the minimum mounting unit of the cabinet, and the height of the power rack is also the same as that of the upper cover. An electronic apparatus characterized by the above-mentioned. 2. The electronic device according to claim 1, wherein a holder for mounting the electronic device on the cabinet is attached so as to be in contact with the inner wall of the cabinet side plate, and air flows through the cabinet. An electronic apparatus characterized by being formed. 3. An electronic device according to claim 1, wherein a partition plate is provided between said upper case portion and said lower case portion.
An electronic device, wherein a cooling channel is separated by the projecting portion and the lower case portion in the basic rack.