JPH0637475A - Structure of outdoor electronic apparatus - Google Patents

Abstract

PURPOSE:To enable an outdoor container to install an arbitrary number of electronic apparatuses inside and to suppress abnormal rise of temperature inside the container. CONSTITUTION:Although a knocked-down cubicle 1 that can be laterally extended in accordance with a required system scale installs high heat dissipating units 2 inside, since airconditioners 3 and 3' installed at arbitrary positions inside can be operated in parallel with each other so as to control any desired operating condition, abnormal rise of temperature inside the cubicle 1 can be suppressed, thereby being able to prevent the system down of outdoor electronic apparatus as much as possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
By installing two or more air conditioners whose operating state is controllable in either the backup operating state or the parallel operating state in the assembly type cubicle, it is configured to suppress an abnormal temperature rise in the cubicle. The present invention relates to the structure of an outdoor electronic device.

[0002]

2. Description of the Related Art Up to now, for example, in satellite communication earth station equipment, a part of the equipment has been installed as an outdoor electronic device on the roof of a building or the like. In order to suppress the temperature rise in the outdoor electronic device due to the radiant heat of the air conditioner, an air conditioner is installed in the outdoor electronic device. For example, as an example of air conditioner equipment,
Reference "KU-Band Satellite Digital Systems" KU-BAND SATELLITE DIGIT
AL TRANSMISSION SYSTEMS ”” (International
Journal of Satellite Communications. Volume 3, 221-228 (1985) "INTE
RNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS.VOL.
3,221-228 (1985) ”) are known.

FIG. 2 shows the structure of the outdoor electronic device described in that document. As shown in the figure, an air conditioner 3 and a plurality of high heat generating units 2 are installed in a predetermined manner in the assembled cubicle 1. When the air conditioner 3 is operating normally, the air conditioner cool air 6 from the lower cool air intake port 16 enters the high heat generating unit 2 side, and after heat exchange with the high heat generating unit 2 is performed. The heat is removed from the upper heat exhaust port 17, and then returned to the air conditioner 3 as it is for recirculation. On the other hand, when the air conditioner 3 is out of order, the outside air intake port 18 with the shutter is opened at the same time when the exhaust fan 20 mounted in the direction opposite to the air conditioner 3 is operated, so that the outside air 22 is shuttered. It is taken into the lower part of the cubicle 1 through the attached outside air intake port 18. In the cubicle 1, the outside air 22 enters the high heat generating unit 2 side through the lower cool air intake port 16 and, after heat exchange with the high heat generating unit 2 is performed, through the upper heat exhaust port 17, exhaust air with a shutter is provided. The high temperature exhaust heat 21 is discharged from the mouth 19.

[0004]

However, in the outdoor electronic device according to the prior art, it is not taken into consideration that the number of high heat generating units can be increased or decreased according to the system scale. Also, as in the case of midsummer day, when the outside air temperature is abnormally high, or depending on the amount of heat generated from the high heat generation unit, the temperature rise in the assembly type cubicle becomes too high, which causes the air conditioner to The outdoor electronic device may fall into a system down state due to an overload condition. At that time, when the high heat generating units that are required to have high reliability are redundantly configured in multiplex, the meaning of the multiplex configuration is no longer equal. An object of the present invention is to bring a system down state even if an arbitrary number of electronic devices can be laterally connected and accommodated according to the system scale and the temperature rise inside becomes abnormally high. Not to serve the structure of outdoor electronic devices.

[0005]

The above-mentioned object is to allow any number of electronic devices to be connected in the lateral direction according to the system scale so as to be housed inside an assembly type cubicle, while each is in an independent operation state, a backup operation state, and a parallel operation state. Two or more air conditioners whose operating state is controllable to any one of the operating states are allowed to cool each of the electronic devices, and the accommodation position is arbitrary,
This is achieved by separating the electronic device from the housing frame or by housing the electronic device inside the frame.

[0006]

When accommodating an electronic device in the assembly type cubicle as an assembly unit, the assembly type cubicle is laterally assembled and connected according to the system scale, and then an arbitrary number of electronic devices are accommodated in the cubicle. It is possible to configure an outdoor electronic device according to the system scale simply by connecting them in the horizontal direction. Also, for example, when installing two air conditioners in an assembled cubicle,
One air conditioner is put into operation when the temperature inside the cubicle reaches a specified temperature, but when the temperature further rises, other air conditioners are also put into operation. Further, when any one of the air conditioners is in a failure state or has reached a failure state, the other air conditioners are controlled so as to shift to the backup operation state, so that the inside of the cubicle is controlled. Abnormal temperature rise can be suppressed. Therefore, generally, the more the air conditioners are installed, the higher the reliability as an outdoor electronic device is.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIG. Figure 1
In (A) and (B), the structure of the front and right sides of an example of the structure of the outdoor electronic device according to the present invention is shown with an air conditioner 2
Although shown as being housed in a stand, the outdoor electronic device will be described below with reference to these figures. That is, the outdoor electronic device according to the present invention is transported and carried in the disassembled state, and then assembled and installed locally. After assembly and installation, necessary cable connections and refrigerant pipe connections are made between the plurality of high heat generating units 2 and each of the air conditioners 3 and 3 '. At this time, each of the air conditioners 3 and 3'is preferably installed near the high heat generating unit 2 having the largest heat generation amount (in this example, it is installed at the lower part of the high heat generating unit 2, but at the upper part thereof). However, it is possible to function as an outdoor electronic device for the first time by being controlled by an inter-air conditioner control device (not shown). In the inter-air conditioner controller, the actual temperature in the assembled cubicle 1 from the temperature sensors 15 and 15 'arranged near the exhaust heat suction fans 9 and 9'and the operation / operation in each of the air conditioners 3 and 3'. Each of the air conditioners 3 and 3'can be controlled as desired based on the operation stop / failure stop condition. For example, when the temperature inside the assembled cubicle 1 reaches the specified temperature, the air conditioner 3 is first put into operation, but if the temperature further rises, the other air conditioner 3'is also put into operation. It is a thing. Further, when either one of the air conditioners 3 and 3'is in a failure state, or when the air conditioner reaches a failure state, the other air conditioners are controlled so as to shift to the backup operation state. An abnormal temperature rise in the cubicle 1 can be suppressed.

1 (A) and 1 (B), only the air conditioner 3 is in an operating state. In this state, the air conditioner cool air 6 is passed through the lower cool air intake port 4 by the cool air blower fan 8. In addition to being supplied and circulated to the high heat generating unit 2 side, it is returned to the air conditioner 3 side through the lower heat exhaust port 5 by the suction force of the exhaust heat suction fan 9 and exhausted heat 7. When the air conditioner 3'is operated alone or in parallel with the air conditioner 3, the cold air blower fan 8'and the suction fan 9'are similarly operated,
The high heat generation unit 2 has only the air conditioner 3'or the air conditioner 3,
It is cooled by 3 '.

[0009]

As described above, according to the first aspect, any number of electronic devices can be laterally connected and accommodated according to the system scale, and the internal temperature rise becomes abnormally high. Even in such a case, the structure of the outdoor electronic device that does not lead to the system down state can be obtained.

[Brief description of drawings]

FIG. 1A and FIG. 1B are views showing the configurations of a front surface and a right side surface in an example of the structure of an outdoor electronic device according to the present invention.

FIG. 2 is a diagram showing a configuration of an outdoor electronic device according to a conventional technique.

[Explanation of symbols]

 1 ... Assembly type cubicle 2 ... High heat generation unit 3, 3 '... Air conditioner 4 ... Lower intake port 5 ... Lower heat exhaust port 8, 8' ... Cold air blower fan 9, 9 '... Exhaust heat suction fan 15, 15' ... Temperature sensor

Claims (1)

[Claims] 1. An arbitrary number of electronic devices can be laterally connected according to the system scale so as to be housed inside an assembly type cubicle, and each of them can be operated independently, in a backup mode, or in a parallel mode. Separately from the housing frame of the electronic device, each of the electronic devices can be cooled by two or more air conditioners controlled by
Alternatively, the structure of the outdoor electronic device is configured to be housed inside the integrated frame.