JPH042335Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an electronic dehumidification/cooling device that dehumidifies a closed room or the like housing various devices.

[Conventional technology]

2. Description of the Related Art Conventionally, as a device for dehumidifying a closed room or the like in which various devices are housed, there is a device in which cooling fins are provided in an air passage and the cooling fins are cooled by an electronic cooling element. According to this, the air passing through the air path is cooled by the cooling fins, causing dew condensation and being dehumidified. There are two types of air circulation in the air passage: one is by natural convection, and the other is forced by a fan.

[Problem that the invention attempts to solve]

However, since dehumidification is performed by cooling, if the dehumidification operation continues, the inside of the sealed room may become too cold, and dew condensation may occur on the outer surface of the outer wall of the sealed room.
This condensed water causes the problem of rust on the outer wall.
A fan that uses forced airflow has an excellent dehumidifying effect, but condensation is significant due to the above-mentioned excessive cooling. Therefore, dehumidification operation using forced air is not preferable except when the temperature is high. In addition, when the humidity in a sealed room is not very high, dehumidifying operation using natural circulation is sufficient, but in conventional dehumidifying equipment equipped with a fan, the fan is driven regardless of the humidity, which wastes energy and lifespan becomes shorter.

The purpose of this invention is to provide an electronic dehumidifying cooling device that prevents the space to be dehumidified from becoming too cold, saves energy by eliminating unnecessary fan drive, extends fan life, and can operate appropriately according to temperature and humidity. It is.

[Means for Solving the Problems] The electronic dehumidifying cooling device of this invention is provided with cooling fins in the air passage of the main body case, which forms an air passage that allows air flow by natural convection, and cools the cooling fins. In an electronic dehumidification cooling device, the electronic cooling device is provided with an electronic cooling element that provides airflow, and a fan that forces air into the air path.
a first temperature switch that detects that the temperature of the dehumidified space to which the air passage is opened is lower than a first set temperature and shuts off the power circuit of the electronic cooling element and the fan; and a first temperature switch provided in series with the fan. a second temperature switch that is turned on when it detects that the temperature of the space to be dehumidified is equal to or higher than a second set temperature which is higher than the first set temperature; The humidity detection switch is turned on when it detects that the humidity in the space is higher than a set humidity.

[Effect]

According to the configuration of this invention, by applying a voltage to the electronic cooling element, the airflow that naturally convects in the air path of the main body case or the airflow sent by the fan is cooled by the cooling fins, and the surface of the cooling fins cools the airflow. Condensation occurs. Therefore, this airflow is dehumidified, and the equipment in the space to be dehumidified is protected from moisture, improving reliability.

In this case, when the temperature of the space to be dehumidified is below the first set temperature, the first temperature switch is turned off, so the electronic cooling element and the fan are stopped, and the entire operation is brought to a halt. Therefore, the space to be dehumidified is not further cooled to cause dew condensation on the outer wall, and rusting on the outer wall due to dew condensation can be prevented.

When the temperature is higher than the first set temperature, the electronic cooling element is energized, but if either the second set temperature or higher or the set humidity is not met, the fan remains stopped, and natural convection Dehumidification operation is performed. At this time, dehumidifying operation using natural circulation is sufficient, or dehumidifying operation using forced air may cause the temperature to become too cold. By stopping unnecessary fan operation, it is possible to save energy and extend the life of the fan. It also prevents dew condensation on the outside walls due to excessive cold.

When the temperature is higher than the first set temperature and either the second set temperature or higher or the set humidity is satisfied, the second temperature switch or humidity switch is turned on and the fan is driven. Therefore, powerful dehumidification operation using forced air can be performed.
At this time, strong dehumidification is required, or there is no problem of excessive cooling even with strong dehumidification operation, and strong dehumidification can protect the equipment installed in the space to be dehumidified.

In this way, it is possible to perform proper operation according to the temperature and humidity conditions, and while performing the necessary dehumidification function, it is possible to prevent the space to be dehumidified from becoming too cold and to prevent unnecessary fan driving, thereby saving energy and improving the life of the fan.

〔Example〕

An embodiment of this invention will be described based on the drawings. In the figure, 1 is a sealed room 2 which is the space to be dehumidified.
The airtight chamber 2 is the upper outer wall of the chamber 2, and equipment (not shown) that requires dehumidification is housed in the sealed chamber 2. A main body case 3 of the dehumidifying cooling device is provided passing through the outer wall 1 and fixed to the upper wall 1 with a fixture 4. The main body case 3 is partitioned into an upper chamber 6 and a lower chamber 7 by a heat insulating plate 5 provided at the same height as the outer wall 1. The heat insulating board 5 is made of, for example, an iron plate covered with a heat insulating sheet.

The interior of the lower chamber 7 is an air passage that opens from an intake port 8 formed at the upper and lower portions of the side wall to an exhaust port 9, and cooling fins 10 are provided in this air passage. An intake fan 11 is installed inside the intake port 8. The heat absorbing surface of the electronic cooling element 12 is brought into contact with the cooling fin 10, and the heat pipe 1 is connected to the heat generating surface of the electronic cooling element 12.
The endothermic ends of No. 3 are connected. The heat pipe 13 passes through the heat insulating plate 5 and extends to the upper part of the upper chamber 6. A funnel-shaped water receiver 14 for receiving condensed water is provided below the cooling fin 10, and a discharge hose 15 is connected to the funnel-shaped water receiver 14. The discharge hose 15 is led out to the outside of the closed chamber 2.

The upper chamber 6 has an intake port 16 at the lower part of the side wall and an exhaust port 18 at the upper surface. The exhaust port 18 has a top cover 1.
9 is attached so as to be openable and closable, and a heat dissipation fan 20 is also installed. From the intake port 16 of the upper chamber 6 to the exhaust port 1
A heat dissipation fin 21 is installed in the air path leading to the heat pipe 8, and the heat dissipation end of the heat pipe 13 is connected to the heat dissipation fin 21. The heat radiation fin 21 is attached to the main body case 3 via a spacer 22. Further, a power transformer 23 and a power supply device 24 that generate heat are installed outside the upper chamber 6 of the main body case 3.

A first temperature switch 25, a second temperature switch 26, and a humidity switch 27 are provided on the lower surface of the lower chamber 7 to detect the temperature and humidity inside the sealed chamber 7, respectively. The first temperature switch 25 is, for example, 0° to 5°C.
It turns off when the temperature is lower than the first set temperature. The second temperature switch 26 is turned on at a temperature equal to or higher than the second set temperature of 35° to 40°C. Humidity switch 27 is 80~
It turns on when the humidity setting is 85% or higher.

Figure 2 shows the entire electrical circuit. The first temperature switch 25 includes the electronic cooling element 12 and each fan 11,
20 common circuit parts. The intake fan 11 and the heat radiation fan 20 are connected in parallel, and the second
A circuit in which a temperature switch 26 and a humidity switch 27 are connected in parallel is provided in series with the fans 11 and 20.

Next, the operation of the above configuration will be explained. The case of forced air will be explained. The hot and humid air in the sealed chamber 2 is sucked through the intake port 8 of the lower chamber 7 by the intake fan 11 and comes into contact with the cooling fins 10. The air that has touched the cooling fins 10 is cooled by heat absorption by the electronic cooling element 12 and is discharged from the exhaust port 9.
With the above cooling, dew condensation occurs on the surface of the cooling fin 10 and its vicinity, and the discharged air is dehumidified. The condensed water is received by a water receiver 14 and discharged by a discharge hose 15.
is discharged from the sealed chamber 2.

The heat generated on the heat generating surface of the electronic cooling element 12 is transmitted upward by the heat pipe 13 and radiated from the heat radiation fins 21, and is also transmitted to the main body case 3 via the spacer 22, and is also transmitted from the outer surface of the main body case 3. Heat is dissipated. Heat radiation from the radiation fins 21 is forcibly performed due to the airflow caused by the radiation fan 20.

In this way, the high temperature and humidity air in the sealed chamber 2 is cooled by the electronic cooling element 12 via the cooling fins 10, and the heat generated on the heat generating surface of the electronic cooling element 12 is released to the outside of the sealed room 2 through the heat pipe 13. Therefore, the heat within the sealed chamber 2 can be effectively released to the outside. Therefore, it is possible to prevent a rise in temperature due to heat generation in the equipment installed inside the sealed room 2, and the reliability and life of the equipment installed inside can be improved. Moreover, since dew condensation is caused by the cooling fins 10 and the condensed water is discharged by the water receiver 14 during cooling, the humidity inside the sealed chamber 2 can be reduced. Therefore, it is possible to prevent the dielectric strength of the internally installed equipment from decreasing, and also to prevent dew condensation from forming on the inner wall surface of the sealed room 2 and the internally installed equipment, thereby further improving the rust prevention and reliability of the internally installed equipment. .

When the heat radiation fan 20 and the intake fan 11 are stopped, the air flow in the air path is obtained by natural convection. That is, in the lower chamber 7, the cooling fins 1
The air that has become heavier due to cooling at
get out of In the upper chamber 6, the air that has been warmed by the radiation fins 21 and made lighter exits from the exhaust port 18 at the upper end.

Switching between dehumidifying operations and stopping operations using forced air and natural convection is performed as follows.

The first temperature switch 25 is turned off when the temperature falls below the first set temperature, the electronic cooling element 12 and each fan 11, 20 are stopped, and the entire operation is brought to a halt. Therefore, the sealed chamber 2 is not further cooled to cause dew condensation on the outer wall 1, and rusting on the outer wall 1 due to dew condensation can be prevented.

When the temperature is higher than the first set temperature, the electronic cooling element 1
However, if either the second set temperature or higher or the set temperature or higher conditions are not satisfied, the second temperature switch 26 and the humidity switch 2 are energized.
Since both fans 7 are off, each fan 11, 20 remains stopped. Therefore, dehumidification operation using natural convection is performed. At this time, dehumidifying operation using natural circulation is sufficient, or there is a risk that dehumidifying operation using forced air ventilation may cause the temperature to become too cold. The service life of the outer wall 1 can be improved, and dew condensation on the outer wall 1 due to excessive cooling can be prevented.

When the temperature is higher than the first set temperature and either the second set temperature or higher or the set humidity is satisfied, the second temperature switch 26 or humidity switch 27 is turned on, and the heat dissipation fan 20 and the intake fan 11 are turned on. is driven. Therefore, powerful dehumidification operation using forced air can be performed. At this time, strong dehumidification is required, or even if strong dehumidification operation is performed, there is no problem of excessive cooling, and the equipment installed in the sealed room 2 can be protected by strong dehumidification.

In this way, proper operation is performed according to temperature and humidity conditions, and while performing the necessary dehumidification function, it prevents the space to be dehumidified from becoming too cold, saves energy by preventing unnecessary fan drive, and extends the lifespan of fans 11 and 20. Improvements can be made.

In addition, in the above embodiment, the main body case 3 is connected to the upper chamber 6.
Although the upper chamber 6 is divided into a lower chamber 7 and heat is radiated outside the closed chamber 2, the heat may be radiated inside the closed chamber 2 without providing the upper chamber 6.

[Effect of idea]

The electronic dehumidification cooling device of this invention includes a first temperature switch that detects that the temperature of the space to be dehumidified in which the air path is open is below a first set temperature and shuts off the power circuits of the electronic cooling element and the fan. , a second temperature switch that is installed in series with the fan and turns on when it detects that the temperature of the space to be dehumidified is equal to or higher than a second set temperature that is higher than the first set temperature; The device is equipped with a humidity detection switch that is installed in parallel with the dehumidifier and turns on when it detects that the humidity in the space to be dehumidified is higher than the set humidity. While performing the dehumidifying function, it prevents the space to be dehumidified from becoming too cold and prevents unnecessary fan drive, thereby saving energy and improving the life of the fan.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of this invention, and FIG. 2 is an electrical circuit diagram thereof. 1... Outer wall, 2... Sealed chamber, 3... Main body case, 5... Heat insulation plate, 8... Intake port, 9... Exhaust port, 10... Cooling fin, 11... Intake fan,
12...electronic cooling element, 13...heat pipe,
14... Water receiver, 20... Heat dissipation fan, 21...
Heat dissipation fin, 25...First temperature switch, 26...
...Second temperature switch, 27...Humidity switch.

Claims (1)

[Scope of utility model registration request] Cooling fins are provided in the air passage of the main body case forming an air passage that allows air flow by natural convection,
In an electronic dehumidifying cooling device that includes an electronic cooling element that cools the cooling fins and a fan that blows forced air into the air path, it is detected that the temperature of the dehumidified space to which the air path is opened is equal to or lower than a first set temperature. a first temperature switch that shuts off the power supply circuit of the electronic cooling element and the fan; and a first temperature switch provided in series with the fan, when the temperature of the space to be dehumidified is equal to or higher than a second set temperature that is higher than the first set temperature. a second temperature switch that turns on when it detects that
An electronic dehumidification cooling device comprising: a temperature switch and a humidity detection switch which is provided in parallel and is turned on when detecting that the humidity of the space to be dehumidified is equal to or higher than a set humidity.