JP2005340391A - Heat discharge device and housing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make cooling and storage in a housing efficient by horizontally and independently discharging heat from respective electronic equipment units superposed in a multi-stage shelf by a centrifugal air blower. <P>SOLUTION: The heat discharging device 100 has a blowing unit 2 above an electronic equipment unit 1 having a plurality of packages 11 arranged so that air can be blow upward, and the blowing unit 2 has a centrifugal air blower 21 which sucks the air from below and blows the air to a horizontally provided air discharge path 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat exhaust device that cools the interior of an electronic device that consumes a large amount of power, and a housing structure that houses the heat exhaust device in a stack, and particularly to a communication device for outdoor installation. The present invention relates to a structure in which an exhaust passage and an exhaust port can be easily connected to each other when stored in a body.

  Cooling inside a housing in which electronic device units are housed in a multi-stage shelf is becoming increasingly important as the mounting density of electronic devices increases and the amount of heat generated increases. Especially in communication equipment installed outdoors, how to stabilize the electronic equipment unit in the housing in an environment where the output increases and the amount of heat generated by the equipment increases, and the temperature of the outside air becomes higher. It is increasingly important to operate. The exhaust heat / cooling method in the housing includes a mode in which the inside of the housing is cooled by the outside air sucked into the housing and exhausted to the outside, and a mode in which cooling air is provided to circulate the cool air in the housing. is there.

  In the cooling by the outside air, a form is adopted in which outside air is sucked from the side surface of the housing by a fan provided for each electronic device unit to be housed and cooled, and exhausted from the top of the head at the central portion of the housing ( For example, see Patent Document 1.)

  On the other hand, in the case of cooling with a cooling device, as shown in the perspective view of the cooling device installed in the housing in FIG. 7 and the diagram showing the flow of cooling air in FIG. The cooling air cooled in step 1 is circulated in the housing by a fan provided for each electronic device unit to be cooled.

  In FIG. 7, the cooling device 5 is installed on the top of the casing 4. Here, the electronic device unit 1 shows a case where two units are stored in a two-stage shelf. For example, a plurality of packages 11 in which electronic devices are mounted on a printed board are stored. On each of the electronic device units 1, a blower unit 2 having a plurality of blower fans is placed.

  An axial blower is used as the blower fan used in the blower unit 2. This blower sucks air in a direction parallel to the shaft and blows air in a direction parallel to the shaft, and is commonly called a propeller blower.

  In addition, the front cover and the peripheral side wall of the housing 4 are both insulated and shielded from being affected by the outside air temperature and the amount of solar heat so that the cooling air inside the housing 4 does not leak outside. It has a sealed configuration.

  In FIG. 8, the flow of the cooling air is indicated by an arrow, but is made by the cooling device 5 at the top of the housing 4 and is conveyed downward through the cool air ventilation path 51 on the front wall of the housing 4. Then, the cooling air is distributed to each of the electronic device units 1 stacked in a plurality of stages, and is sucked into the blower unit 2 while cooling the electronic devices mounted on the printed board through the gap of the package 11 from the bottom, It returns to the cooling device 5 through the space of the housing 4.

Such a sealed cooling air internal circulation cooling method is a very efficient cooling method as long as the heat generation amount of the electronic device unit as a heat source can be sufficiently absorbed by the cooling capacity of the cooling device. .
JP-A-8-289422 (see FIGS. 1 and 4)

  However, as the amount of heat generation increases with the progress of high-density mounting of electronic device units, the temperature rise inside the housing becomes severe. Therefore, it is necessary to increase the cooling capacity of the cooling device, and the power consumption increases accordingly. In addition, when the electronic device units are stacked and stored on the multistage shelf in the housing, an axial blower is used for the blower unit, so the heat generated from the electronic device unit stored in the lower step is stored in the upper step. There is also a problem that adversely affects the temperature rise of the equipment unit.

  Therefore, an object of the present invention is to enable exhaust in the horizontal direction. Moreover, it aims at making attachment of a ventilation unit easy.

  (1) A blower unit is provided above an electronic device unit in which a plurality of packages are arranged side by side so as to be able to vent upward, and the blower unit is a centrifugal unit that sucks air from below and blows it to an exhaust passage provided in a horizontal direction. Solved by a heat exhaust device configured to have a blower.

  In other words, a blower unit is provided above the electronic device unit so that the exhaust heat has an independent configuration in which the electronic device units adjacent in the vertical direction do not affect each other. The blower unit uses a centrifugal blower (also called a spiral blower or a sirocco fan) to suck air from the axial direction, blow it in the centrifugal direction of the rotor blades, and blow it to the horizontal exhaust path.

  (2) A plurality of packages are arranged side by side so that ventilation is possible in the upper direction, and a plurality of electronic device units having a blower unit above are accommodated, and have a plurality of exhaust ports on the side wall surface, Each of the exhaust ports is configured such that when the electronic device unit is accommodated, each of the exhaust passages provided in the electronic device unit is slidably fitted while being slidable. This is solved by the housing structure.

  That is, a plurality of exhaust ports are provided on the side wall surface of the casing that stores the heat exhaust devices in a stacked manner. Then, when the exhaust passage is slid against the exhaust port when the exhaust passage is shaped so that the end face of the exhaust passage and the inner end face of the exhaust opening are fitted to each other, and the heat exhaust device is pushed into the shell of the housing. It is designed to fit in and out.

  (3) The casing has a cooling device on the head and a cold air passage on the side inner wall, and the cold air passage is opened on each side surface of the heat exhausting device, and is formed by the cooling device. It is solved by the housing structure according to claim 2, wherein the cool air is discharged from the exhaust port through the cool air ventilation path, through the heat exhaust device.

  That is, a cooling device is provided at the head of the housing for forced cooling, a cold air ventilation path is provided on the side inner wall, and the cold air ventilation path is opened at each side surface of the partition plate.

  According to the heat exhaust apparatus according to the present invention, the heat of the electronic device unit is exhausted in the horizontal direction. Therefore, the electronic device units adjacent in the vertical direction do not affect each other. Further, when the exhaust heat device is housed in the housing, the exhaust heat device is independently exhausted from the exhaust port through the exhaust passages of the exhaust heat device. In addition, the power consumption of the cooling device can be reduced.

It consists of a lower partition plate and a blower unit using an upper centrifugal blower, and is sucked from above and discharged in the horizontal direction by a heat exhausting device of an electronic device unit sandwiched between them. In addition, when housed in a housing, the exhaust path of the heat exhaust device fits into an exhaust port opened in the side wall surface of the housing, so that there is a thermal effect between adjacent electronic device units. There is no such thing.
[Example 1]
FIG. 1 is an exploded perspective view of the first invention of the present invention, FIG. 2 is an exploded perspective view of the main part of FIG. 1, FIG. 2 (A) is an example, and FIG. B) is another example.

  In FIG. 1, an exhaust heat device 100 has a mechanism in which an electronic device unit 1 serving as a heat source that requires exhaust heat is vertically sandwiched, a blower unit 2 is provided above, and a partition plate 3 is provided below. Yes.

  The electronic device unit 1 includes a package 11 in which various electronic devices are mounted on a printed board and arranged in parallel with a subrack 12. Some electronic devices mounted on the package 11 generate heat, and for the electronic device unit 1, forced exhaust heat is indispensable.

  In order to blow with the blower unit 2 provided above the electronic device unit 1, a centrifugal blower 21 is used. In general, in a blower system for exhaust heat or cooling, a blower called an axial blower or a propeller blower that sucks air in a direction parallel to the shaft and blows air in a direction parallel to the shaft is commonly used. Therefore, it is easy to cause a problem that affects other adjacent units.

  On the other hand, the centrifugal blower 21 used in the present invention is also referred to as a spiral blower or a sirocco blower, and is configured to suck in a direction parallel to the shaft and blow in a direction perpendicular to the shaft. Accordingly, since the hot air sucked up in the vertical direction through the electronic device unit 1 can be blown in all directions in the horizontal direction, the direction of blowing can be freely determined by providing the exhaust path 22 as shown in FIG. That is, the exhaust path 22 can be blown in one direction or both directions. In addition, a plurality of centrifugal blowers 21 can be arranged according to the amount of exhaust heat.

  As shown in FIG. 2A, the white arrow may be distributed in the direction of the white arrow, and the oblique arrow may be distributed in the direction of the oblique arrow. Of course, when the amount of exhaust heat is small, as shown in FIG. 2B, the number of centrifugal blowers 21 may be one and the exhaust path 22 may be bidirectional as indicated by white arrows.

On the other hand, a partition plate 3 is provided below the electronic device unit 1. The convex hole 31 provided in the partition plate 3 is a hole through which a bundle of cables that are input to and output from the electronic device unit 1 passes. Therefore, with the electronic device unit 1 sandwiched between them, intake by the centrifugal blower 21 is separated from other adjacent units as one unit with the partition plate 3 as the lower boundary and the centrifugal blower 21 and the exhaust path 22 as the upper boundary. The structure has no thermal influence.
[Example 2]
FIG. 3 is an explanatory diagram of the second invention of the present invention, FIG. 3 (A) is a top view with the top wall of the casing removed, and FIG. 3 (B) is the casing. FIG. 3C is a side view with the side wall of the casing removed, FIG. 4 is an exploded perspective view of the exhaust outlet of the casing, and FIG. 5 is a fitting between the exhaust passage and the exhaust outlet. It is a perspective view of a combination mechanism.

  In the housing structure 200 shown in FIG. 3, the housing 4 stores a plurality of electronic device units 1 stacked on a shelves. Here, the electronic device unit 1 includes a blower unit 2 and a partition plate 3. It can be stored as a sandwiched heat exhaust device 100. Therefore, if the top wall is removed, the blower unit 2 of the uppermost heat exhaust device 100 can be seen as shown in FIG. Arrow 61 is the exhaust discharged in the horizontal direction by the exhaust path 22.

  On the side wall surface of the housing 4, exhaust ports 41 as shown in FIG. 4 are provided at positions corresponding to the pitch of the exhaust passages 22 in the height direction of the heat exhaust device 100. The exhaust port 41 is bent downward after exiting the side wall surface of the housing 4. Then, as shown in FIG. 3 (B), the exhaust air blown in the horizontal direction indicated by the arrow 61 from the exhaust path 22 of the blower unit 2 is inherited, and the air is sent downward in the direction of the arrow 62, and the housing in the direction of the arrow 63 is indicated. Drain out of body 4.

  FIG. 3C illustrates an intake source when the blower unit 2 draws in air through the electronic device unit 1, and the air is supplied in the direction of the arrow 64 from the intake port 42 provided on the front surface of the housing 4 and partitioned. They are distributed in the direction of the arrow 65 on the plate 3 and sucked up by the blower unit 2 through the electronic device unit 1 as indicated by the arrow 66.

  In FIG. 3, the guide rail 43 as shown in FIG. 4 is provided on the side inner wall of the housing 4 so as to face the housing 4. The heat device 100 is housed by being pushed along the guide rail 43 from the front. At that time, as shown in FIG. 5, the inner end portion 44 of the exhaust port 41 on the housing side and the outer end portion 23 of the exhaust passage 22 are fitted.

That is, the flange of the outer end portion 23 shown in FIG. 5B has a groove shape with respect to the flat flange of the inner end portion 44 shown in FIG. Therefore, when the inner end portion 44 is pushed in the direction of the arrow 67, the flange of the inner end portion 44 fits while sliding into the groove of the flange of the outer end portion 23 shaped into a groove shape, and FIG. As shown in FIG. 3, the exhaust passage 22 is spontaneously fitted to the exhaust port 41.
Example 3
FIG. 6 is an explanatory view of the housing structure of the third invention of the present invention, FIG. 6 (A) is a front view, and FIG. 6 (B) is a side view.

  In FIG. 6, the case structure 200 has a configuration in which the cooling device 5 is provided at the top of the case 4 and the cold air passage 51 is provided on the front side wall surface. The cooling device 5 provided at the top of the head is not different from the conventional one, but the cool air ventilation path 51 provided on the front side wall surface of the housing 4 is divided into the exhaust heat device 100 by being blown with cold air as indicated by an arrow 68 at the top. The electronic device unit 1 is distributed by the plate 3 as indicated by an arrow 65, cooled by the centrifugal blower 21 as indicated by an arrow 66, passed through the exhaust path 22 as indicated by an arrow 61, and the exhaust port 41 indicated by an arrow 63. To the outside of the housing 4.

  Thus, according to the heat exhaust apparatus 100 according to the present invention, the intake air sucked up through the electronic device unit 1 by using the centrifugal blower 21 to the blower unit 2 by using the blower function is spontaneously discharged into the horizontal exhaust passage 22. Head for. Therefore, each of the heat exhaust devices 100 can be operated independently without any thermal influence on other adjacent units.

  Note that the housing structure according to the present invention can be made to have a structure with excellent weather resistance against a particularly high outside temperature of the housing. It is a suitable structure.

  There is no restriction on the number of stages of the heat exhaust device housed in the housing, and the height direction increases only in a similar manner as the number of stages increases.

  In addition, it is not uniquely determined which side of the casing the exhaust port, the intake port, or the cold air passage provided in the casing is provided, and various modifications are possible.

  Furthermore, as for the shape of the flange into which the exhaust path and the exhaust port are fitted, whichever is flat and which is grooved, various modifications are possible.

  Regarding the embodiment including the above-described Examples 1, 2, and 3, the following additional notes are further disclosed.

(Supplementary note 1) A plurality of packages have a blower unit above an electronic device unit arranged in parallel so as to be ventilated upward,
The blower unit has a centrifugal blower that sucks air from below and blows air to an exhaust passage provided in a horizontal direction.

(Supplementary note 2) The exhaust heat apparatus according to supplementary note 1, wherein the centrifugal blower is a sirocco fan or a sirocco blower.

(Appendix 3) A plurality of packages are arranged side by side so as to allow ventilation upward, and a plurality of electronic device units having a blower unit above are housed, and have a plurality of exhaust ports on the side wall surface. And
Each of the exhaust ports is configured such that when the electronic device unit is stored, the exhaust passages provided in the electronic device unit are slidably fitted while being slidable. The housing structure.

(Additional remark 4) This housing | casing has a cooling device in a head, and a cold-air ventilation path in a side inner wall,
The cold air passage is open on each side of the exhaust heat device,
The casing structure according to appendix 2, wherein the cool air produced by the cooling device passes through the cool air ventilation path, and is exhausted from the exhaust port through the heat exhaust device.

(Supplementary note 5) The casing structure according to supplementary note 3, wherein the casing structure is installed outdoors.

  INDUSTRIAL APPLICABILITY When the present invention is applied to an electronic device unit, particularly a communication device for outdoor installation in which a communication device that generates a large amount of heat for high output is housed in a casing, it can be mounted in a small size and efficiently exhausts heat. be able to.

It is a disassembled perspective view of 1st invention of this invention. It is a disassembled perspective view of the principal part of FIG. It is explanatory drawing of 2nd invention of this invention. It is a disassembled perspective view of the exhaust port of a housing | casing. It is a perspective view of the fitting mechanism of an exhaust path and an exhaust port. It is explanatory drawing of the housing | casing structure of 3rd invention of this invention. It is a perspective view of the cooling device with which the housing was equipped. It is a figure which shows the flow of cooling air.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic device unit 11 Package 12 Subrack 2 Blower unit 21 Centrifugal fan 22 Exhaust path 23 Outer end part 3 Partition plate 31 Convex hole 4 Case 41 Exhaust port 42 Inlet port 43 Guide rail 44 Inner end part 5 Cooling device 51 Cooling air ventilation Paths 61, 62, 63, 64, 65, 66, 67, 68 Arrow 100 Heat exhaust device 200 Housing structure

Claims (3)

A plurality of packages have a blower unit above an electronic device unit arranged side by side so as to be able to vent upward,
The blower unit has a centrifugal blower that sucks air from below and blows air to an exhaust passage provided in a horizontal direction. A plurality of packages are arranged side by side so as to allow ventilation, and a plurality of electronic device units having a blower unit above are housed, and have a plurality of exhaust ports on the side wall surface,
Each of the exhaust ports is configured such that when the electronic device unit is stored, the exhaust passages provided in the electronic device unit are slidably fitted while being slidable. The housing structure. The housing has a cooling device on the head and a cold air passage on the side inner wall,
The cold air passage is open on each side of the exhaust heat device,
The casing structure according to claim 2, wherein cold air generated by the cooling device passes through the cold air ventilation path, and is discharged from the exhaust port through the heat exhaust device.

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