JP2014053569A - Electronic apparatus device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable all of heating parts to be cooled without providing cooling fans at all of a plurality of electronic apparatus units in an electronic apparatus device in which the plurality of electronic apparatus units are housed in a housing.SOLUTION: In an electronic apparatus device 1, a first electronic apparatus unit 20 includes: a first unit case 21; and a cooling fan 22 which flows air from an intake port 25 formed at a front end part 23 of the first unit case 21 toward an exhaust port 26 formed at a rear end part 24. A second electronic apparatus unit 30 includes: a second unit case 31 which is located adjacent to the first electronic apparatus unit in a direction perpendicular to an air flow direction FL1 in the first unit case; and a heating part 32 provided at the second unit case. An intake hole 36, which causes air flowing in the flow direction FL1 to flow into the second unit case, and an exhaust hole 37, which exhausts the air flowing into the second unit case and passing near the heating part to the exterior of the second unit case, are formed at the second unit case.

Description

  The present invention relates to an electronic apparatus device.

Some conventional electronic device apparatuses are configured such that a plurality of electronic device units are removably accommodated in each housing portion of a housing. In this type of electronic device apparatus, each electronic device unit is equipped with an electronic component (heat generating portion) that generates heat when the electronic device apparatus is in operation.
For this reason, conventionally, as in Patent Document 1, for example, a cooling fan is provided in each electronic device unit (power source, power receiving power source, DE gauge, DAC gauge, etc.), thereby providing each electronic device unit. The generated heat generating part is cooled.

JP 2005-56499 A

  However, if the cooling fans are provided in all the electronic device units as in the conventional electronic device apparatus, the number of cooling fans to be inspected and repaired increases. That is, the maintenance of the electronic device is troublesome. There is also a problem that the manufacturing cost of the electronic device increases.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an electronic device apparatus that can efficiently cool all the heat generating portions without providing cooling fans in all of the plurality of electronic device units. And

  In order to solve this problem, an electronic device device of the present invention is an electronic device device including a housing and a plurality of electronic device units that are detachably accommodated in the housing. The first electronic device unit among the electronic device units is used for cooling in which air flows from the first unit case to the exhaust port formed in the rear end portion from the intake port formed in the front end portion of the first unit case. A second electronic device unit of the plurality of electronic device units in a state of being accommodated in the housing in a direction in which the air flows in the first unit case with respect to the first electronic device unit. A second unit case arranged adjacent to the orthogonal direction; and a heat generating portion provided in the second unit case, wherein the air flowing in the flow direction is supplied to the second unit case. An intake hole for allowing the air to flow into the unit case and an exhaust hole for discharging the air that has flowed into the second unit case from the intake hole and passed through the vicinity of the heat generating portion to the outside of the second unit case are formed. It is characterized by that.

In the electronic device device of the present invention, not only the heat generating portion of the first electronic device unit but also the heat generating portion of the second electronic device unit can be cooled by the cooling fan of the first electronic device unit.
Specifically, by forming the air intake holes in the second unit case, part of the air flowing in the first unit case or part of the air flowing out from the exhaust port of the first unit case , Get into the second unit case through the intake hole. Thereby, an air flow is also generated in the second unit case. Since this air passes through the vicinity of the heat generating portion of the second electronic device unit and is discharged from the exhaust hole, the heat generating portion can be cooled.
From the above, it is not necessary to provide a cooling fan in the second electronic device unit. In other words, it is possible to efficiently cool the heat generating portions of all the electronic device units without providing cooling fans in all of the plurality of electronic device units included in the electronic device device.

In the electronic device device of the present invention, the first electronic device unit and the second electronic device unit are arranged in a direction orthogonal to the air flow direction in the first unit case. Compared with the case where the heat generating part of the second electronic device unit is cooled by the cooling fan of the first electronic device unit arranged downstream of the first electronic device unit in the air flow direction described above, It is possible to keep the size of the electronic device along the flow direction small.
Furthermore, in the electronic device device of the present invention, since the first electronic device unit and the second electronic device unit are arranged as described above, the first end of the first unit case is exposed to the outside of the housing. When the electronic device unit is housed in the housing, the front end portion of the second unit case facing in the same direction as the first unit case can be exposed outside the housing in the same manner. And since maintenance inside each unit case is often performed from the front end side of each unit case, the inside of the second unit case is not removed without removing the first electronic device unit or the second electronic device unit from the housing. Maintenance can also be easily performed.

  And in the said electronic device apparatus, it is good for the exhaust hole of said 2nd unit case to open in the direction different from the inlet port of said 1st unit case with respect to the exterior.

  Although the temperature of the air discharged to the outside from the exhaust hole of the second unit case is higher than the ambient temperature of the electronic device, the air discharged from the second unit case is configured as described above. It can prevent flowing into the case. That is, the heat generating portions of the first electronic device unit and the second electronic device unit can be efficiently cooled.

  Further, in the electronic device apparatus, the heat generating portion of the second electronic device unit is provided at the rear end portion of the second unit case, and the rear end side of the first unit case housed in the housing Preferably, an eddy current generating member is provided for generating an eddy current at a rear end portion of the second unit case by the air flowing out from the exhaust port.

  According to the above configuration, the vortex generated by the air flowing out from the exhaust port of the first unit case passes through the vicinity of the heat generating part provided at the rear end of the second unit case. Even without providing a cooling fan, the heat generating part of the second electronic device unit can be efficiently cooled.

  Further, in the electronic device apparatus, the eddy current generating member may be formed with a gap between the second unit case and the eddy current generating member along the air flow direction in the first unit case. More preferably, the position is arranged so as to coincide with the rear end of the second unit case.

  In the above configuration, the speed of the air passing through the gap is higher than the speed of the air flowing in the first unit case, so the speed and size of the vortex generated at the rear end of the second unit case is increased. Therefore, the heat generating part of the second electronic device unit can be cooled more efficiently.

  Further, in the electronic device apparatus, it is preferable that the plurality of first electronic device units are arranged adjacent to the same second electronic device unit.

In this configuration, even if the cooling fans of some of the first electronic device units fail, the heat generating portions of the second electronic device units can be cooled by the cooling fans of the remaining first electronic device units.
In particular, the second electronic device unit is indispensable for the operation of the electronic device device, and the plurality of first electronic device units are redundantly configured (a configuration in which the electronic device device can be operated with only some of the first electronic device units). If it becomes, it will become possible to replace | exchange easily the 1st electronic device unit provided with the failed cooling fan, with the electronic device apparatus operated.

According to the present invention, since the number of cooling fans to be inspected / repaired in the electronic device apparatus is smaller than in the past, the electronic device apparatus can be easily maintained. In addition, the manufacturing cost of the electronic device can be reduced.
Further, according to the present invention, the first electronic device unit and the second electronic device unit are arranged in a direction orthogonal to the air flow direction in the first unit case, so that the electrons along the air flow direction are arranged. The dimensions of the device device can be kept small, and the maintenance inside the second unit case can be easily performed.

It is a perspective view which shows the electronic device apparatus which concerns on one Embodiment of this invention. It is a sectional side view which shows the principal part of the electronic device apparatus shown in FIG. It is AA arrow sectional drawing of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the electronic device apparatus 1 according to this embodiment is used as an electronic apparatus device including a plurality of electronic device units, for example, and is inserted into and removed from the housing 10 and the housing 10. A plurality of electronic device units 20 and 30 that can be accommodated are provided.
The housing 10 has a hollow portion 15 for accommodating the plurality of electronic device units 20 and 30. In the present embodiment, the hollow portion 15 opens in the front surface portion 11 of the housing 10. Thereby, each electronic device unit 20 and 30 can be inserted / extracted in the depth direction (Y-axis direction) of the housing | casing 10 from the front part 11 side. Further, the opening portion of the front surface portion 11 is formed in a vertically long shape so that the plurality of electronic device units 20 and 30 can be accommodated by being arranged in the height direction (Z-axis direction) of the housing 10.

More specifically, the housing 10 of the present embodiment has an inner side surface portion 14 extending from the opening portion of the front surface portion 11 toward the inside of the housing 10. Note that the inner side surface portion 14 in the illustrated example has a pair of inner side surface portions 14A (see FIG. 3) facing each other in the width direction (X-axis direction) of the housing 10 and the height direction (Z-axis direction) of the housing 10. A pair of inner side surfaces (inner upper surface 14B (see FIG. 2) and inner lower surface (not shown)) facing each other is included.
The inner side surface portion 14 is located inside the outer side surface portion 13 that defines the hollow portion 15 of the housing 10 with a space therebetween. In the illustrated example, the outer side surface portion 13 of the housing 10 is a portion extending in the depth direction from the front surface portion 11 to the rear surface portion 12 of the housing 10, and a pair of outer surface portions 13A ( 3) and a pair of outer surface portions (an outer upper surface portion 13B (see FIG. 2) and an outer lower surface portion (not shown)) facing each other in the height direction of the housing 10.

A guide rail 16 for sliding the electronic device units 20 and 30 in the Y-axis direction when the electronic device units 20 and 30 are inserted into and removed from the housing 10 is provided on the pair of inner side surface portions 14A facing in the width direction of the housing 10. Is provided. The guide rail 16 also serves to support the electronic device units 20 and 30 accommodated in the housing 10. Moreover, in this embodiment, the ventilation port 17 which makes the cavity part 15 connect outside is formed in the rear surface part 12 of the housing | casing 10. As shown in FIG.
In a state in which the electronic device units 20 and 30 are accommodated in the housing 10 configured as described above, the electronic device units 20 and 30 are spaced from each other inside the rear surface portion 12 and the outer surface portion 13 of the housing 10. To position. In this state, only the front panels (front end portions 23 and 33) of the electronic device units 20 and 30 are exposed to the outside from the front surface portion 11 side of the housing 10.

The plurality of electronic device units 20 and 30 include a first electronic device unit 20 and a second electronic device unit 30. In the electronic device device 1 of the present embodiment, a plurality of first electronic device units 20 are provided, and only one second electronic device unit 30 is provided. The second electronic device unit 30 is, for example, a control unit that controls the operation of the first electronic device unit 20, and is indispensable for the operation of the electronic device device 1. On the other hand, the plurality of first electronic device units 20 have, for example, a configuration (redundant configuration) in which the electronic device device 1 can be operated with only some of the first electronic device units 20.
The second electronic device unit 30 is arranged adjacent to the first electronic device unit 20 in the arrangement direction of the plurality of electronic device units 20, 30. In the present embodiment, the second electronic device unit 30 is disposed so as to be sandwiched between the two first electronic device units 20.

Each first electronic device unit 20 includes a first unit case 21 and a cooling fan 22. Inside the first unit case 21, various electronic components (not shown) including electronic components (heat generating part; not shown) that generate heat when the electronic apparatus device 1 is operated are provided. The cooling fan 22 sucks external air from an air inlet 25 formed in the front end portion 23 of the first unit case 21, flows it into the first unit case 21, and then flows through the first unit case 21. The first unit case 21 is provided so as to exhaust from the exhaust port 26 formed in the rear end 24 to the outside. That is, the cooling fan 22 serves to cool the heat generating part by discharging the heat of the heat generating part arranged in the first unit case 21 to the outside.
The air flow direction FL1 in the first unit case 21 by the cooling fan 22 is orthogonal to the arrangement direction of the plurality of electronic device units 20 and 30.

In the present embodiment, the air inlet 25 of the first unit case 21 is formed in the front panel (front end 23) of the first unit case 21 that is exposed to the outside from the front surface 11 side of the housing 10. Further, the exhaust port 26 of the first unit case 21 is formed at the end (rear end 24) on the front end side in the insertion direction with respect to the housing 10 in the first unit case 21. Thereby, in this embodiment, the flow direction FL1 of the air in the 1st unit case 21 corresponds with the direction (Y-axis positive direction) which inserts each electronic device unit 20 and 30 in the housing | casing 10. FIG.
In the present embodiment, the cooling fan 22 is provided inside the first unit case 21, and is particularly arranged at a position close to the front end portion 23 side.

The second electronic device unit 30 is configured by arranging, in the second unit case 31, an electronic component (heat generating portion 32) that generates heat when the electronic device device 1 is in operation. In the present embodiment, the heat generating portion 32 is provided at the end portion (rear end portion 34) on the front end side in the insertion direction with respect to the housing 10 in the second unit case 31.
Further, in the present embodiment, the rear end portion 34 of the second unit case 31 is opened to the outside, and the opening portion is closed by a heat radiating component 35 having a high thermal conductivity such as a heat sink. In addition, a large number of fins (not shown) are formed in a portion of the heat dissipation component 35 exposed to the outside of the second unit case 31. The heat generating portion 32 described above is fixed to the heat radiating component 35 so as to be disposed in the second unit case 31.

The second unit case 31 has an air intake hole 36 through which air flowing from the front end portion 23 side to the rear end portion 24 side of the first unit case 21 by the cooling fan 22 flows into the second unit case 31. Is formed. In the present embodiment, a part of the air flowing in the first unit case 21 adjacent to the second unit case 31 is caused to flow into the second unit case 31 from the intake hole 36. A communication hole 28 that communicates the internal space with the intake hole 36 is formed.
Further, the air intake hole 36 is disposed at a position where the air flowing into the second unit case 31 passes through the vicinity of the heat generating portion 32 of the second electronic device unit 30. In the present embodiment, since the heat generating portion 32 is provided at the rear end portion 34 of the second unit case 31, the air intake holes 36 are arranged in the arrangement direction of the plurality of electronic device units 20, 30 with respect to the heat generating portion 32. The second unit case 31 is disposed on the rear end portion 34 side.
In addition, although the intake holes 36 in the illustrated example are formed so as to be arranged in the width direction (X-axis direction) of the second unit case 31, for example, in a slit shape extending in the width direction of the second unit case 31. It may be formed.

Further, the second unit case 31 is formed with an exhaust hole 37 through which air that flows into the second unit case 31 from the intake hole 36 and passes through the vicinity of the heat generating portion 32 is discharged out of the second unit case 31. .
The exhaust hole 37 of the present embodiment is formed on the front end 33 side of the second unit case 31 so that the air flowing into the second unit case 31 passes through the entire second unit case 31. In addition, the exhaust hole 37 of the present embodiment is configured so that the air discharged to the outside of the second unit case 31 and the air inlet 25 of the first unit case 21 are not sucked into the first unit case 21 from the air inlet 25 again. Open in different directions. Specifically, the exhaust hole 37 is formed at the side end in the width direction of the second unit case 31 so that the air that has flowed through the second unit case 31 is discharged into the cavity 15 of the housing 10. Yes. In this embodiment, since the side end portion of the second unit case 31 faces the inner side surface portion 14 </ b> A in the width direction of the housing 10, the communication hole 18 that allows the cavity portion 15 to communicate with the exhaust hole 37 is formed in the inner side surface portion 14 </ b> A. Is formed.
In the illustrated example, the exhaust holes 37 are formed at both side ends of the second unit case 31 in the width direction, but may be formed only at one side end, for example. Further, the exhaust holes 37 in the illustrated example are formed so as to be arranged in the thickness direction (Z-axis direction) of the second unit case 31, for example, slits extending in the thickness direction of the second unit case 31. It may be formed in a shape.

  Further, an electronic component 38 having low heat resistance is also provided in the second unit case 31 of the present embodiment. The electronic component 38 is disposed between the intake hole 36 and the exhaust hole 37 described above. Thereby, the air flowing from the intake hole 36 toward the exhaust hole 37 in the second unit case 31 passes through the electronic component 38 having low heat resistance.

Further, in the electronic device device 1, the air flows out from the exhaust port 26 of the first unit case 21 toward the rear end portion 24 side of the first unit case 21 adjacent to the second unit case 31 in a state of being accommodated in the housing 10. A vortex generating member 50 that generates vortex VF at the rear end portion 34 of the second unit case 31 by air is provided.
The eddy current generating member 50 according to the present embodiment is formed in a plate shape so that the thickness direction of the eddy current generating member 50 is along the air flow direction FL1 in the first unit case 21 and the second unit case 31. A gap 51 is formed between them. More specifically, the eddy current generating member 50 is arranged with an interval in the arrangement direction of the plurality of electronic device units 20, 30 with respect to the second unit case 31, whereby the gap 51 described above is formed. Is formed.

Further, the eddy current generating member 50 of the present embodiment is arranged on the downstream side in the air flow direction FL1 in the first unit case 21 with respect to the cooling fan 22, the intake hole 36, and the communication hole 28. Specifically, the eddy current generating member 50 is arranged so that the position of the eddy current generating member 50 along the air flow direction FL1 in the first unit case 21 coincides with the rear end portion 34 of the second unit case 31. Yes.
In the present embodiment, the eddy current generating member 50 is formed integrally with the rear end portion 24 of the first unit case 21. For this reason, the gap 51 between the eddy current generating member 50 and the second unit case 31 is constituted by the exhaust port 26 of the first unit case 21.

Next, in the electronic device apparatus 1 configured as described above, a method for cooling the heat generating portion 32 of each electronic device unit 20 and 30 and the electronic component 38 having low heat resistance will be described.
When the electronic device apparatus 1 is operated in a state where the plurality of electronic device units 20 and 30 are accommodated, the cooling fan 22 of each first electronic device unit 20 is operated. As a result, external air is sucked into the first unit cases 21 from the intake ports 25 and flows toward the exhaust ports 26. The heat generating part of each first electronic device unit 20 is cooled by the air flowing in the first unit case 21. Further, the air discharged from the exhaust port 26 of each first unit case 21 passes through the inside of the housing 10 and is exhausted to the outside of the housing 10 from the ventilation port 17 formed in the rear surface portion 12 of the housing 10. .

In addition, since the air intake hole 36 is formed in the second unit case 31, a part of the air flowing in the first unit case 21 adjacent to the second unit case 31 flows from the air intake hole 36 to the second unit case 31. Get inside. Thereby, an air flow is also generated in the second unit case 31. And since this air passes the heat generating part 32 vicinity of the 2nd electronic device unit 30 and is discharged | emitted from the exhaust hole 37, the said heat generating part 32 can be cooled.
In particular, in the present embodiment, since the intake hole 36 is formed near the heat generating portion 32, the speed of the air flowing in the vicinity of the heat generating portion 32 is increased. Since air flows into the second unit case 31, the heat generating portion 32 can be efficiently cooled.
In the present embodiment, the air flowing in the second unit case 31 from the intake hole 36 toward the exhaust hole 37 passes through the electronic component 38 having low heat resistance, so that the electronic component 38 can also be cooled. In other words, it is possible to prevent the electronic component 38 from being curled by the heat of the heat generating portion of the first electronic device unit 20 adjacent to the second electronic device unit 30.

In addition, a vortex VF is generated at the rear end portion 34 of the second unit case 31 by the air flowing out from the exhaust port 26 of the first unit case 21 adjacent to the second unit case 31. The swirl VF passes through the vicinity of the heat generating part 32 provided at the rear end of the second unit case 31, whereby the heat generating part 32 of the second electronic device unit 30 is cooled.
In the present embodiment, since the heat radiating part 35 is fixed to the heat radiating part 35 and the heat radiating part 35 is exposed to the outside from the rear end part 34 of the second unit case 31, the vortex VF passes through the heat radiating part 35. Thus, the heat generating portion 32 is cooled via the heat radiating component 35. Moreover, in this embodiment, since many fins of the thermal radiation component 35 are exposed outside, the heat generating part 32 can be cooled with high efficiency because the vortex VF enters between the many fins.

Furthermore, the eddy current generating member 50 of the present embodiment is configured so that a gap 51 is formed between the second unit case 31 and the eddy current generating member 50 along the air flow direction FL1 in the first unit case 21. The position is arranged so as to coincide with the rear end portion 34 of the second unit case 31. For this reason, the speed of the air passing through the gap 51 becomes higher than the speed of the air flowing in the first unit case 21, and the speed and size of the vortex VF generated at the rear end portion 34 of the second unit case 31 are increased. . Therefore, the heat generating part 32 of the second electronic device unit 30 can be further efficiently cooled.
Further, in the present embodiment, two eddy currents VF are generated at the rear end portion 34 of the same second unit case 31 by the air discharged from the exhaust ports 26 of the two first unit cases 21. The heat generating part 32 of the device unit 30 can be efficiently cooled.

  As described above, according to the electronic apparatus device 1 according to the present embodiment, not only the heat generating portion of the first electronic apparatus unit 20 but also the second electronic apparatus unit 30 by the cooling fan 22 of the first electronic apparatus unit 20. The heat generating portion 32 and the electronic component 38 can be cooled. Therefore, the number of cooling fans 22 to be inspected / repaired in the electronic device apparatus 1 is smaller than in the past, and the electronic device apparatus 1 can be easily maintained. In addition, the manufacturing cost of the electronic device 1 can be reduced.

Furthermore, in the electronic device apparatus 1 of the present embodiment, the first electronic device unit 20 and the second electronic device unit 30 housed in the housing 10 are orthogonal to the air flow direction FL1 in the first unit case 21. Therefore, the second electronic device unit 30 is arranged downstream of the first electronic device unit 20 in the air flow direction FL1, and the second electronic device unit 30 is cooled by the cooling fan 22 of the first electronic device unit 20. Compared to the case where the heat generating portion 32 of the device unit 30 is cooled, the size of the electronic device device 1 along the air flow direction FL1 can be reduced.
In addition, maintenance inside the unit cases 21 and 31 is often performed from the front panel (front end portions 23 and 33) side of the unit cases 21 and 31. 10, the front end portions 23 and 33 of the respective electronic device units 20 and 30 are exposed to the outside of the housing 10, so that the first electronic device unit 20 and the second electronic device unit 30 are removed from the housing 10. Therefore, maintenance inside the second unit case 31 can be easily performed.

Moreover, although the temperature of the air discharged | emitted outside from the exhaust port 26 of the 1st unit case 21 and the exhaust hole 37 of the 2nd unit case 31 is higher than the ambient temperature of the electronic device apparatus 1, the electronic device of this embodiment In the apparatus 1, since the discharged air is not sucked into the first unit case 21 again from the air inlet 25, the heat generating portions 32 and the electronic components of the first electronic device unit 20 and the second electronic device unit 30 are used. 38 can be cooled efficiently.
More specifically, since the exhaust hole 37 of the second unit case 31 opens in a direction different from that of the intake port 25 of the first unit case 21, the air discharged from the second unit case 31 is taken into the intake port 25. Can be prevented from flowing into the first unit case 21. In particular, in the present embodiment, since the exhaust hole 37 opens in the cavity 15 of the housing 10, the air discharged from the second unit case 31 enters the cavity 15, and further, Since the air vent 17 formed in the surface portion 12 is discharged to the outside of the housing 10, the air discharged from the second unit case 31 is again supplied from the air inlet 25 disposed on the front surface portion 11 side of the housing 10. It is possible to reliably prevent the liquid from flowing into one unit case 21. Similarly, the air discharged from the exhaust port 26 of the first unit case 21 enters the hollow portion 15 of the housing 10 and is then discharged from the ventilation port 17 to the outside. It is possible to reliably prevent the flow into 21.

Furthermore, according to the electronic device apparatus 1 of the present embodiment, since the plurality of first electronic device units 20 are arranged adjacent to the same second electronic device unit 30, for example, some of the first electronic device units 20 are disposed. Even if the cooling fan 22 fails, the cooling fan 22 of the remaining first electronic device unit 20 can cool the heat generating portion 32 and the electronic component 38 of the second electronic device unit 30.
Furthermore, in the electronic device apparatus 1 of the present embodiment, since the plurality of first electronic device units 20 have a redundant configuration, the first electronic device including the failed cooling fan 22 while the electronic device apparatus 1 is operating. The device unit 20 can be easily replaced.

As mentioned above, although one Embodiment of this invention was described, the technical scope of this invention is not limited to this, It can change suitably in the range which does not deviate from the technical idea of this invention.
For example, the air intake hole 36 of the second unit case 31 is not limited to being formed at a position where the air flowing through the first unit case 21 flows into the second unit case 31 as in the above embodiment, The air may be formed at a position where air after being discharged from the exhaust port 26 of the one unit case 21 to the rear end portion 24 side flows into the second unit case 31. That is, the air intake hole 36 may be located downstream of the rear end portion 24 of the first unit case 21 in the air flow direction FL1 in the first unit case 21. In order to arrange the intake holes 36 in this manner, for example, the rear end portion 24 of the first unit case 21 is located upstream of the rear end portion 34 of the second unit case 31 in the air flow direction FL1 upstream of the cooling fan 22. What is necessary is just to be located. In this case, it is not necessary to form the communication hole 28 in the first unit case 21 as in the above embodiment.

Furthermore, although the heat generating part 32 of the second electronic device unit 30 is disposed in the second unit case 31, for example, it may be disposed outside the second unit case 31.
Further, when the heat generating portion 32 is fixed to the heat radiating component 35 so as to be arranged outside the second unit case 31, for example, a large number of fins of the heat radiating component 35 may be arranged in the second unit case 31. . In this case, the air that has flowed into the second unit case 31 through the intake holes can enter between the plurality of fins, and the heat generating portion 32 can be efficiently cooled.
Furthermore, the second electronic device unit 30 may not include the heat dissipation component 35, for example. In this case, the second unit case 31 may be formed so that the rear end portion 34 does not open to the outside, and the heat generating portion 32 may be provided inside or outside the rear end portion 34 of the second unit case 31. .

  Moreover, in the said embodiment, although the two 1st electronic device units 20 are distribute | arranged adjacent to the same 2nd electronic device unit 30, for example, one or three or more 1st electronic device units 20 are arranged. May be arranged next to each other. When three or more first electronic device units 20 are adjacent to the same second electronic device unit 30, the arrangement of the plurality of electronic device units 20 and 30 in the housing 10 may be devised.

  Furthermore, the eddy current generating member 50 is not limited to being formed in a plate shape as in the above embodiment, and is not limited to being formed integrally with the first unit case 21, but at least the first unit case 21. What is necessary is just to be provided so that the vortex | eddy_current VF may be generated in the rear-end part 34 of the 2nd unit case 31 with the air which flowed out from the exhaust port 26 of this. Therefore, the eddy current generating member 50 may be provided separately from the first unit case 21, for example. In this case, the eddy current generating member 50 may be fixed to the housing 10 or the second unit case 31, for example.

Further, in the above embodiment, the air flow direction FL1 in the first unit case 21 by the cooling fan 22 matches the insertion direction of the electronic device units 20 and 30 with respect to the housing 10, but for example, matches. It does not have to be.
Further, the cooling fan 22 is not limited to being provided inside the first unit case 21 as in the above embodiment, and at least the air flow from the intake port 25 to the exhaust port 26 is generated in the first unit case 21. What is necessary is just to be provided in the 1st unit case 21 so that it may generate | occur | produce. However, the cooling fan 22 is preferably arranged at least upstream of the vortex generating member 50 in the air flow direction FL1 so as not to inhibit the generation of the vortex VF.

  Further, the air vent 17 for exhausting the air that has entered the cavity 15 of the housing 10 from the unit cases 21 and 31 to the outside of the housing 10 is formed in the rear surface portion 12 of the housing 10 as in the above embodiment. For example, it may be formed on the outer surface portion 13 or the front surface portion 11. However, in consideration of the cooling efficiency of the heat generating portion 32 and the electronic component 38 of each electronic device unit 20, 30, it is more preferable that the vent hole 17 is not formed in the front surface portion 11.

  And in the said embodiment, as a structure for cooling the heat-emitting part 32 and the electronic component 38 of the 2nd electronic device unit 30, the mechanism (intake hole 36 and exhaust hole 37) which sucks air in the 2nd unit case 31 Both of the eddy current generating members 50 are provided, but it is sufficient that at least one of them is provided. If the eddy current generating member 50 is not provided, a structure for guiding air to the intake hole 36 is required, but the heat generating portion 32 is not limited to the rear end portion 34 of the second unit case 31, and at least the second unit case 31. What is necessary is just to be distribute | arranged to the position where the air which flows through passes.

DESCRIPTION OF SYMBOLS 1 Electronic device apparatus 10 Case 20 1st electronic device unit 21 1st unit case 22 Cooling fan 23 Front end 24 Rear end 25 Inlet 26 Exhaust 30 Second electronic device unit 31 Second unit case 32 Heat generating part 34 Rear end 36 Intake hole 37 Exhaust hole 50 Vortex flow generating member 51 Crevice FL1 Air flow direction VF Vortex

Claims (5)

An electronic device apparatus comprising a housing and a plurality of electronic device units that are detachably accommodated in the housing,
Of the plurality of electronic device units, the first electronic device unit causes air to flow from the first unit case and the air outlet formed at the front end of the first unit case toward the air outlet formed at the rear end. With a cooling fan,
A second electronic device unit among a plurality of electronic device units is adjacent to the first electronic device unit in a direction orthogonal to the air flow direction in the first unit case while being accommodated in the housing. A second unit case disposed, and a heat generating portion provided in the second unit case,
The second unit case has an air intake hole through which the air flowing in the flow direction flows into the second unit case, and the air flows from the air intake hole into the second unit case and passes through the vicinity of the heat generating portion. An electronic device apparatus, wherein an exhaust hole for discharging air to the outside of the second unit case is formed.   2. The electronic device apparatus according to claim 1, wherein the exhaust hole of the second unit case is open to the outside in a direction different from the air inlet of the first unit case. The heat generating part of the second electronic device unit is provided at the rear end of the second unit case,
On the rear end side of the first unit case housed in the housing, a vortex generating member that generates a vortex at the rear end of the second unit case by the air flowing out from the exhaust port is provided. The electronic device apparatus according to claim 1, wherein the electronic apparatus device is a device.   The eddy current generating member forms a gap with the second unit case, and the position of the eddy current generating member along the air flow direction in the first unit case is the position of the second unit case. The electronic device apparatus according to claim 3, wherein the electronic apparatus device is arranged so as to coincide with a rear end portion.   5. The electronic device apparatus according to claim 1, wherein the plurality of first electronic device units are arranged adjacent to the same second electronic device unit. 6.

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