JP2001156478A - Heater containing case cooler and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heater containing case cooler having energy conservation and excellent in installation. SOLUTION: The heater containing case cooler comprises an inside air duct 5 for inputting and returning the air of a heater containing case, an outside air duct 9 for inputting the atmosphere and exhausting the atmosphere a partition plate 10 installed independently at both ducts, a blower 3 for conveying the airs of the ducts 9 and 5, and a heat exchange element 4 disposed at the intersection of both the ducts to heat exchange the sensible heat of the atmosphere with that of the indoor air. In this case, the case is cooled with energy conservation by externally mounting on the panel of the case, and hence no space is needed for installing the cooler in the case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box structure to be installed outdoors, which has a limited space for installing a cooling device, has a heating element inside, and generates a large amount of heat even in winter. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box having a precise control board that requires cooling and that temperature, humidity, dust and the like affect the performance and life of an electronic component, and more particularly to a cooling device and a control method therefor.

[0002]

2. Description of the Related Art In recent years, the performance of electronic components and the density of electronic components with respect to control boards have been increasing, and the amount of heat generated from control boards has increased dramatically. Accordingly, the temperature in the box tends to increase, and the operation guarantee and the product life of the electronic components on the control board are greatly affected by the temperature in the box. For this reason, reliability cannot be ensured unless the temperature in the box is cooled below a certain level.

[0003] In addition, removal of moisture and dust in the air in the box due to refinement of electronic components has become an important factor.

Conventionally, when cooling a box of this type, there is a method in which an indoor unit is installed in the box and connected to an outdoor unit outside the box by refrigerant piping, such as the one shown in FIG. It was a target.

Hereinafter, the heating element storage box cooling device will be described with reference to FIG.

As shown in the figure, inside a box 101, a control board 102 for generating a heat load, an indoor unit 103, and a temperature sensor for detecting an air temperature inside the box 101 and sending a signal to the indoor unit 103 A power supply 104 and a power supply 105 are provided.

An outdoor unit 106 is installed outside the box 101, and is connected to the indoor unit 103 by a refrigerant pipe 107.

In the above configuration, when the control board 102 is operated, the temperature inside the box 101 gradually increases due to the heat generated.

When the temperature detected by the temperature sensor 104 exceeds a set temperature, an operation signal is generated, the indoor unit 103 starts operating, the temperature inside the box 101 decreases, and the temperature sensor 104 detects the temperature. When the temperature falls below the set temperature, a stop signal is generated and the indoor unit 10
3 stops.

[0010] The temperature inside the box 101 is maintained within a certain range while repeating the above operation.

[0011]

In such a conventional heating element storage box cooling device, since there is no heat radiation because the surroundings are sealed with a heat insulating material, cooling is always performed even when the outside air temperature is low such as in winter. The equipment has to be operated and consumes a lot of cooling energy.

The present invention solves such a conventional problem. By installing a cooling device on a panel of a heating element storage box, heat exchange between the outside air and the air in the box when the outside air temperature is low. By performing the above, the air in the box is cooled, so that the operation time of the existing cooling device is reduced, and energy is saved.

Further, since it is externally mounted on the panel, it does not take up space in the heating element storage box, and can be easily installed on the existing heating element storage box.

An object of the present invention is to provide a cooling device for a heating element storage box which is energy saving and has good workability.

[0015]

In order to solve the above-mentioned problems, one means of the heating element storage box cooling device according to the present invention is to take in air in the heating element storage box and return to the heating element storage box for circulation. A ventilation plate that has an inside air passage to be taken in, an outside air passage that takes in outside air, and an outside air passage that discharges the outside air, and a partition plate that is installed so that these two passages are independent, and a blower that conveys air in the outside air passage and the inside air passage. And a heat exchange element disposed at the intersection of the outside air passage and the inside air passage for exchanging sensible heat between the outside air and the inside air, and is externally attached to the panel of the heating element storage box.

According to the present invention, by the above means, when the outside air temperature is low, heat exchange between the outside air and the air in the heating element storage box can be performed to lower the temperature of the air in the box.

As a result, the operation time of the existing cooling device is reduced, and a heating element storage box cooling device capable of performing energy saving operation as compared with the conventional cooling device is obtained.

Further, since the outside air and the air in the heating element storage box do not mix with each other, it is possible to prevent water and dust from being mixed into the box. There is no adverse effect on equipment.

Further, since it can be externally attached to the panel of the heating element storage box, it can be easily attached to the heating element storage box having no extra space.

Further, another means includes a box body having an inside air suction port and an inside air blowout port communicating with the heating element storage box, and having an outside air suction port and an outside air blowout port provided in communication with outside air. An air blower and a heat exchange element are provided in this box, and the rotation axis of the air blower is arranged so as to be parallel to the longitudinal direction of the heat exchange element and orthogonal to the blow-out direction of the inside air.

According to the present invention, the above-mentioned means can make the box of the heating element storage box cooling device thin and small, and the construction can be facilitated.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to an inside air passage for taking in air in a heating element storage box and returning it to the inside of the heating element storage box; A partition plate installed so that these two air paths are independent of each other, a blower that conveys the air of the external air path and the internal air path, and an intersection of the external air path and the internal air path. A heat-exchange element that is provided with a heat exchange element that exchanges sensible heat of outside air and inside air, and that is configured to be externally attached to a panel of the heat-generation element storage box; Energy-saving operation by reducing the operating time of the existing cooling device without mixing water and making it possible to attach it externally to the panel of the heating element storage box, so it can be easily installed in the heating element storage box with no extra space Has the effect of being able to.

According to a second aspect of the present invention, there is provided a box having an inside air inlet and an inside air outlet communicating with a heating element storage box, and having an outside air inlet and an outside air outlet provided in communication with outside air. Body, a blower and a heat exchange element are provided in the box body, and the rotation axis of the blower is arranged so as to be parallel to the longitudinal direction of the heat exchange element and orthogonal to the blowout direction of the inside air. Since the box of the heating element storage box cooling device is made thin and small, there is an effect that the installation when the cooling device is installed can be easily performed.

According to a third aspect of the present invention, there is provided an air cooler for supplementarily cooling the heating element storage box when the outside air temperature is high, and energy saving operation is performed when the outside air temperature is low.
This has the effect of being able to cope with an increase in the required cooling amount when the outside air temperature is high.

According to a fourth aspect of the present invention, the shape of the inside air suction port and the inside air outlet is a circular hole and is arranged in the box of the heating element storage box cooling device. In this case, there is an effect that processing for providing an opening in the panel of the box is facilitated.

According to the fifth aspect of the present invention, the inside air inlet and the inside air outlet are provided with flanges, so that even when the panel of the heating element storage box is thick, airtightness can be ensured by easy construction. Have.

According to a sixth aspect of the present invention, the heat transfer plate of the heat exchange element is made impermeable to moisture, so that moisture contained in the outside air does not enter the inside of the heating element storage box. This has the effect that adverse effects of moisture due to dew condensation on the device do not occur.

According to a seventh aspect of the present invention, there is provided a control for stopping the operation of the air cooler when the outside air temperature is low and performing heat exchange, and operating the air cooler without heat exchange when the outside air temperature is high. Accordingly, there is an effect that energy is saved by preventing unnecessary consumption of energy due to heat exchange and unnecessary operation of the refrigerator.

According to the eighth aspect of the present invention, by using the air inlet or the air outlet with the inside of the heating element storage box for the wiring, it is not necessary to newly form another wiring opening. This has the effect of reducing the number of steps for installation and construction.

The ninth aspect of the present invention is characterized in that a part or the whole of the main body is embedded in a panel (outer wall) and an openable door of the heating element storage box. The outer peripheral surface has an effect of reducing the size of the protrusion of the heating element storage box cooling device.

According to a tenth aspect of the present invention, there is provided an internal air passage for taking in air in the heating element storage box and returning it to the inside of the heating element storage box, and an external air passage for taking in outside air and discharging it to outside air. A partition plate provided so that these two air passages are independent of each other, a blower for conveying air in the outside air passage and the inside air passage, and an air passage between the outside air passage and the inside air passage, and the presence of the outside air and the inside air. It has a heat exchange element for exchanging heat and is mounted on the ceiling of the heating element storage box, and can be installed even when there is no installation space on the outer peripheral side of the heating element storage box. Having.

[0032]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

(Embodiment 1) FIG. 1 shows Embodiment 1 which can be said to be the basic configuration of the heating element storage box cooling device according to the present invention.

The box 1 of the heating element storage box cooling device is attached to the outer periphery of the panel of the heating element storage box, so-called "external attachment".
It is configured with mounting.

Hereinafter, the internal structure will be described.

The air in the heating element storage box (hereinafter referred to as inside air) is taken into the inside air side fan 3A of the blower 3 from the inside air suction port 2 and then passes through the heat exchange element 4 to generate heat again. An internal air passage 5 is formed to circulate back into the body storage box.

On the other hand, outside air is taken in from the outside air suction port 6, and the heat exchange element 4, the outside air side fan 3 B of the blower, the outside air outlet 8
And an outside air passage 9 for discharging air to outside air.

A partition plate 10 is provided for separating the two air paths from each other in a substantially airtight state so that the two air paths are independent from each other. A sensible heat of the outside air and the inside air is provided at the intersection of the outside air path 9 and the inside air path 5. Is disposed.

With the above configuration, the heating element storage box cooling device takes in outside air when the outside air temperature is low, and performs heat exchange with the warm air inside the heating element storage box by the heat exchange element 4 to become warm. The outside air is exhausted, and the cooled air is supplied into the box.

As a result, the operation of the existing cooling device can be minimized, the temperature in the box can be reduced, and energy can be saved.

The outside air passage 9 and the inside air passage 5 are connected to the partition plate 1.
0, the outside air and the air inside the heating element storage box do not mix with each other, so that the dust contained in the outside air does not enter the inside of the heating element storage box, and the equipment inside the heating element storage box is There is no adverse effect due to the dust of the air.

(Embodiment 2) FIG. 2 shows Embodiment 2 of the heating element storage box cooling device according to the present invention.

An inside air suction port 2 and an inside air outlet 11 communicating with the heating element storage box are provided on one surface of the wall of the box 1 forming the heating element storage box cooling device, and the other surface is provided to communicate with outside air. The box 1 is provided with an outside air inlet 6 and an outside air outlet 8, and a blower and a heat exchange element 4 are provided in the box 1.
Are arranged so as to be parallel to the longitudinal direction (stacking direction) of the heat exchange element 4 and to be orthogonal to the direction in which the inside air is blown out.

From the above arrangement, cold outside air is sucked in from the outside air suction port 6 below the heating element storage box cooling device, and from the outside air outlet 8 provided above through the heat exchange element 4 and the outside air side fan 3B of the blower 3. At the same time as blowing out, heated air from the heating element storage box is sucked from the upper inside air suction port 2, and the inside air and outside air are blown from the inside air outlet 11 provided below via the heat exchange element 4 and the inside air side fan 3 </ b> A of the blower 3. Can be blown out while performing heat exchange.

Further, the blower 3 and the heat exchange element can be arranged at the center of the box 1 of the heating element storage box cooling device with the rotation axis 3C of the blower 3 and the longitudinal direction of the heat exchange element 4 being horizontal. This makes it possible to perform heat exchange efficiently with space,
Moreover, since the box 1 of the heating element storage box cooling device is made thin and small, it is possible to easily perform the work when installing the cooling device.

(Embodiment 3) FIG. 3 shows a third embodiment of a cooling device for a heating element storage box according to the present invention.

In this embodiment, in addition to the second embodiment, an air cooler 1 for supplementarily cooling the heating element storage box when the outside air temperature is high.
2 is provided.

When the outside air temperature is high in summer or the like, the operation is stopped while restricting the heat exchange by the heat exchange element 4.
The air cooler 12 is operated to supplementarily cool the heating element storage box.

Thus, it is possible to cope with an increase in the required cooling amount when the outside air temperature is high while performing energy saving operation when the outside air temperature is low.

In this embodiment, the description of auxiliary cooling is used. However, in the interim period or the like, the main cooling may be used instead of the auxiliary cooling. When the heat generation amount of the heating element storage box is not so high, the main cooling is used. Needless to say, this is also possible.

(Embodiment 4) FIG. 4 shows Embodiment 4 of the heating element storage box cooling device according to the present invention.

The inside air inlet 2 and the inside air outlet 11 are round holes, and are arranged in the box 1 of the cooling device for the heating element storage box.

Generally, the outer periphery of the heating element storage box has an aluminum honeycomb structure or a heat insulating material sandwich structure made of aluminum, and can often be processed using a relatively simple tool.

In this embodiment, in addition to the above embodiments, the inside air suction port 2 and the inside air outlet 11 are formed in a circular hole shape. It becomes very easy to provide an opening in the opening.

(Embodiment 5) FIG. 5 shows a fifth embodiment of a cooling device for a heating element storage box according to the present invention.

In this embodiment, in addition to the configuration of the fourth embodiment,
The inside air inlet 2 and the inside air outlet 11 are provided with a flange 13.

Thus, even when the exterior panel forming the heating element storage box is thick, airtightness can be ensured by easy construction.

Example 6 The heat transfer plate of the heat exchange element 4 was made impermeable to moisture (not shown).

Thus, the moisture contained in the outside air does not enter the inside of the heating element storage box, and the adverse effect of moisture due to dew condensation on the equipment inside the heating element storage box does not occur.

(Embodiment 7) FIG. 6 shows an embodiment 7 of a heating element storage box cooling device according to the present invention.

By measuring the outside air temperature, when the outside air temperature is low, the operation of the air cooler 12 is stopped and heat exchange is performed.

When the outside air temperature is high, the air cooler 12 is operated without performing heat exchange.

By performing such control, it is possible to save energy by preventing unnecessary consumption of energy due to heat exchange and unnecessary operation of the air cooler 12.

(Eighth Embodiment) FIG. 7 shows an eighth embodiment of a cooling device for a heating element storage box according to the present invention.

From the heating element storage box cooling device to the inside air suction port 11
Alternatively, the wiring 14 such as a power supply line and a communication line is connected to the inside of the heating element storage box through the inside air outlet 2, so that it is not necessary to separately provide a wiring opening.

Accordingly, it is possible to reduce the number of man-hours for installing the heating element storage box cooling device in the heating element storage box.

(Embodiment 9) FIG. 8 shows a ninth embodiment of a heating element storage box cooling device according to the present invention.

Heating element storage box cooling device A is connected to heating element storage box B
By embedding a part or the whole of the main body in the panel (outer wall), the projecting portion can be reduced.

(Embodiment 10) FIG. 9 shows an embodiment 10 of a heating element storage box cooling device according to the present invention.

Heating element storage box cooling device A is connected to heating element storage box B
By installing it on the ceiling, it is possible to cope with a case where there is not enough installation space on the outer peripheral side surface.

[0071]

As described above, according to the present invention, an energy-saving heating element storage box cooling device can be obtained, and installation work can be easily performed by installing the panel on the heating element storage box. The effect that no space for installing a cooling device is required in the box is obtained.

Further, the cooling device is made thinner and smaller by an arrangement in which the rotation axis of the blower is parallel to the longitudinal direction of the heat exchange element and perpendicular to the direction of blowing the inside air. Construction at the time of installation becomes easy.

Further, since an air cooler for supplementarily cooling the heating element storage box when the outside air temperature is high is provided, energy saving operation is performed when the outside air temperature is low, and the required cooling amount when the outside air temperature is high is increased. Can respond.

Further, the inside air suction port and inside air outlet are round holes and are arranged in the box of the heating element storage box cooling apparatus. When the heating element storage box cooling apparatus is installed, the panel of the box is used. Has the effect that the process of providing an opening in the hole becomes easy.

Further, a flange is provided at the inside air suction port and inside air outlet, so that even when the panel of the heating element storage box is thick,
Airtightness can be secured by easy construction.

Further, since the heat transfer plate of the heat exchange element is made impermeable to moisture, there is an effect that the adverse effect of moisture due to dew condensation on the equipment inside the heating element storage box does not occur.

When the outside air temperature is low, the operation of the air cooler is stopped and heat exchange is performed. When the outside air temperature is high, the air cooler is operated without heat exchange, so that extra heat due to heat exchange is obtained. Energy saving can be achieved by preventing energy consumption and unnecessary operation of the refrigerator.

Further, by wiring the heating element storage box and the heating element storage box cooling device using the inside air suction port or the inside air outlet, it is possible to provide another processing section for wiring in the heating element storage box. It becomes unnecessary and the man-hour for installation processing can be reduced.

Further, by embedding and installing a part or all of the heating element storage box cooling device in the panel and the door of the heating element storage box, it is possible to reduce the protrusion at the outer periphery of the box.

Further, by installing the cooling device for the heating element storage box on the ceiling of the storage box for the heating element, it is possible to cope with a case where there is no installation space on the outer peripheral side surface.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing the structure of a heating element storage box cooling device according to a first embodiment of the present invention.

FIG. 2 is a perspective structural view showing a heating element storage box cooling device according to the second embodiment.

FIG. 3 is a perspective structural view showing a heating element storage box cooling device according to the third embodiment.

FIG. 4 is a perspective structural view showing a heating element storage box cooling device according to the fourth embodiment.

FIG. 5 is a perspective structural view showing a heating element storage box cooling device of the fifth embodiment.

FIG. 6 is a view showing a control flow of the heating element storage box cooling device of the seventh embodiment.

FIG. 7 is a perspective structural view showing a heating element storage box cooling device according to the eighth embodiment.

FIG. 8 is a perspective structural view showing a heating element storage box cooling device according to the ninth embodiment.

FIG. 9 is a perspective structural view showing a heating element storage box cooling device according to the tenth embodiment.

FIG. 10 is a schematic sectional view showing the structure of a conventional heating element storage box cooling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Inside air suction port 3 Blower 3A Inside air side fan 3B Outside air side fan 3C Rotating shaft 4 Heat exchange element 5 Inside air passage 6 Outside air suction port 8 Outside air outlet 9 Outside air passage 10 Partition plate 11 Inside air outlet 12 Air cooling Machine 13 Flange 14 Wiring

Claims (10)

[Claims] 1. An air passage for taking in air in a heating element storage box and circulating it back into the heating element storage box, and an outside air path for taking in outside air and discharging it to outside air. , A blower that conveys the air in the outside air passage and the inside air passage, and a heat exchange element that is arranged at the intersection of the outside air passage and the inside air passage and exchanges the sensible heat of the outside air and the inside air And a heating element storage box cooling device externally attached to a panel of the heating element storage box. 2. A box body having an inside air suction port and an inside air outlet communicating with a heating element storage box, and having an outside air suction port and an outside air outlet provided in communication with outside air, and a box inside the box body. A heating element storage box cooling device provided with a blower and a heat exchange element, wherein a rotation axis of the blower is arranged so as to be parallel to a longitudinal direction of the heat exchange element and orthogonal to a blowing direction of inside air. 3. The heating element storage box cooling device according to claim 1, further comprising an air cooler for auxiliary cooling the heating element storage box when the outside air temperature is high. 4. The heat generation device according to claim 1, wherein the shape of the inside air suction port and the inside air outlet is a circular hole, and the inside air suction port and the inside air outlet are arranged in a box of the heating element storage box cooling device. Body storage box cooling device. 5. The cooling device according to claim 4, wherein flanges are provided at the inside air inlet and the inside air outlet. 6. The cooling device according to claim 1, wherein the heat transfer plate of the heat exchange element is impermeable to moisture. 7. The method of controlling a cooling device for a heating element storage box according to claim 3, wherein the start and stop control of the cooling apparatus installed on the panel of the heating element storage box is performed according to the outside air temperature. 8. The method according to claim 1, wherein an air inlet or an air outlet with the inside of the heating element storage box is used for wiring, so that it is not necessary to newly form another wiring opening. A method for installing and installing the heating element storage box cooling device according to any one of the first to fourth aspects in a heating element storage box. 9. The heating element storage according to claim 1, wherein a part or the whole of the main body is embedded in a panel (outer wall) and an openable door of the heating element storage box. Box cooling device. 10. An air passage for taking in air in the heating element storage box and circulating it back into the heating element storage box, and an outside air path for taking in outside air and discharging it to outside air. , A blower that conveys the air in the outside air passage and the inside air passage, and a heat exchange element that is arranged at the intersection of the outside air passage and the inside air passage and exchanges the sensible heat of the outside air and the inside air A heating element storage box cooling device, comprising: a heating element storage box;