JPH0639776Y2 - Electronic dehumidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of use> The present invention relates to an electronic dehumidifier using an electronic cooling element that utilizes the Peltier effect.

<Prior Art> Recently, in order to maintain the reliability of the equipment under high temperature and high humidity environment, a dehumidifier is installed inside the equipment, and the operation is stopped according to the relative humidity condition inside the equipment, that is, the value of the internal humidity. The dehumidification is performed by performing the dehumidification to prevent dew condensation inside the equipment, and an electronic dehumidifier utilizing the Peltier effect is used as the optimum dehumidifier for that purpose. The electronic dehumidifier was initially installed inside important industrial equipment such as a closed switchboard, and its dehumidifying effect was confirmed, but due to its small size and light weight, it is easy to handle and maintain. The use inside the usable equipment is being considered. The operation will be described below in detail with reference to the drawings.

FIG. 3 is a general view of an electronic dehumidifier installed in the case where the device to which the dew condensation preventing device is installed is a closed switchboard, and FIG. 4 is a vertical sectional view for explaining the operation of the electronic dehumidifier. Is.

In FIG. 3, (A) shows the most general usage, in which the electronic dehumidifier 20 is attached to the lower part of the wall surface near the position of the drainage groove 3 inside the closed switchboard 1 and the drainage pipe. Attach drainage hose 4 to 26 and close floor 2 of switchboard 1
Water droplets 8 are drained to the outside from a drain port 7 provided in the. Further, (B) is an example in which the position of the discharge port is higher than the position of the drainage pipe in FIG.
This is an example in which the position for installing is high. The arrows in the figure show the flow of the humid air 5 sucked in by the electronic dehumidifier 20 and the flow of dry air 6 discharged by the electronic dehumidifier 20.

In FIG. 4, reference numeral 21 is an electronic cooling element utilizing the Peltier effect, and a cooling fin 22 and a heat radiation fin 23 constitute a dehumidifying unit. Reference numeral 24 denotes a fan, which forcibly creates an air flow from the intake of the humid air 5 indicated by the arrow in the figure to the exhaust of the dry air 6. The humid air 5 sucked in through the intake port 9 is cooled below the dew point temperature while passing between the cooling fins 22 and is condensed on the cooling fins 22 to be condensed and dropped as water drops 8 and then through the drainage funnel 25. , The hose 4 connected to the drain pipe 26 protruding downward through the bottom plate 30 does not store the dehumidified water in the drain funnel 25 or the drain pipe 26 and closes as shown in FIG. 3 (A). It is discharged into the drainage groove 3 from the discharge port 7 provided on the floor surface 2 of the switchboard 1. on the other hand,
Since the air flow that has released water is heated while passing between the heat dissipation fins 23, the relative humidity of the air flow decreases and the exhaust port 10
The dry air 6 is returned to the inside of the closed switchboard 1. By repeating such operations, the inside of the closed switchboard is dehumidified and the internal humidity of the closed switchboard is maintained within the required humidity range. Then, FIG. 3 (A) shows an example of the case where the outlet is on the floor of the closed switchboard and the drainage groove under the floor can be used, and (B) is the outlet 7 on the floor 2 and the lower side wall of the closed switchboard 1. Closed switchboard because it can not be installed 1
This is an example in which the electronic dehumidifier 20 is installed at a high position inside, and water is drained to the drain groove 3 outside the closed switchboard 1 from the discharge port 7 provided at a high position on the side wall.

<Problems to be solved by the invention> As described above, the humid air inside the equipment is dehumidified by the operation of the dehumidifier to release moisture, and as a water drop, it forms the inner cavity of the drain hose connected to the drain pipe. Since it flows down, there is no problem in the case where there is a discharge port on the floor surface and there is a drainage groove under the floor as in the example of FIG. 3 (A), but in the case of FIG. 3 (B), Existing existing small equipment, general equipment, or storage rooms do not always have an outlet for inserting such a drainage hose on the floor or lower part of the side surface. In many cases, it is not possible to perforate, and if you want to forcefully find the opening, as in the example of FIG. 3 (B), the opening at a position higher than the drain pipe position in FIG. 3 (A) or The window must be used as the outlet, and for that purpose an electronic dehumidifier is used on the inner wall of the equipment. However, it is often the case that other parts and equipment are already installed at that position inside the equipment and there is no room for extra space. As a result, the electronic dehumidifier is installed in FIG. There are many cases where it cannot be installed in a place higher than the position.

For this reason, it is necessary to install a dehumidifier inside the equipment, and despite the fact that the recent application of a compact and lightweight electronic dehumidifier has been certified as optimal, the position of the drain pipe of this electronic dehumidifier is Drainage must be treated using the opening at a high position.In such a case, dehumidification water may be stored in the drainage funnel or drainage pipe, and if left unattended, the dehumidification water may overflow from the drainage funnel. Therefore, there is a problem that the electronic dehumidifier cannot be applied.

<Means for Solving Problems> The present invention has been made to solve the above problems, and is a sanitary cotton called gauze, for example, which exhibits a capillary phenomenon in the inner cavity of the drainage hose. When a capillary hose with a braided fiber body in which a cloth is wound is inserted directly into the drainage pipe, the dehumidifying water moistens the braided fiber body and rises above the drainage pipe position due to the capillary phenomenon. The dehumidifier inside the drainage funnel or drainage pipe by exposing the tip of the drainage hose to the outside of the equipment through the outlet or window that opens to the opening of the equipment that is higher than the drainage pipe of the electronic dehumidifier. The feature is that wastewater is treated without storing water.

<Operation> Sanitary cotton cloth (hereinafter referred to as gauze) is the most suitable as a braided fibrous body exhibiting a capillary phenomenon, and it is well known that it is used for the wet bulb of a dry and wet bulb hygrometer.

Cut this gauze slightly shorter than the length of the drainage hose, replace it with a conventional drainage hose by replacing the capillary hose inserted in the inner part of the drainage hose in a state of softly winding it into a scroll with the drainage pipe. The water droplets that drip into the capillary hose infiltrate the gauze at the U-shaped tube and rise in the tube due to the capillary phenomenon. Then, after ascending to the highest point of the outlet on the side wall of the device, it descends toward the drain.

Even when the water must be drained through a position higher than the lower end (outlet) of the drainage pipe, the dehumidifying water can be drained smoothly without being stored in the drainage funnel or drainage pipe, so the dehumidifier operates for a long time. However, there is no risk of dehumidifying water overflowing from the drainage funnel, and when using a dehumidifier, it is not necessary to consider its installation location.

<Embodiment> FIG. 1 is a block diagram showing an embodiment of the present invention, which will be described as an improvement in the case illustrated in FIG. 3 (B), and is the same as FIG. 3 and FIG. Use the same symbols. In FIG. 1, the electronic dehumidifier 20 is installed at the same height as in FIG. 3 (A), and the drain hose 4 is replaced with a capillary hose 40.

Fig. 2 shows the cutout of gauze 41 shown in (a) to (d)
The process of reaching the capillary hose 40 of (a) is a gauze 41 cut into a length of 80 cm and a width of 5 cm, (b).
Is wrapped in a roll, and (c) is roughly wound in a spiral with a cotton thread 42 to adjust the shape of the gauze rolled up in a roll, and as a braided fiber medium that mediates the capillary phenomenon. It is also a guide thread when it is inserted into the inner cavity of the drainage hose 4, and (d) is a partial cross-sectional view of the capillary hose.

In Fig. 1, the capillary hose descends about 20 cm into a U-shaped pipe from the place where it is attached to the drain pipe, and rises again, but the braided fibrous body is inserted from the bottom of the U-shaped pipe to the tip of the hose. According to experiments conducted by the inventors, drainage is possible from a drainage port provided at a height of about 40 cm higher than the end of the drainage pipe.

<Effects of the Invention> Since the electronic dehumidifier of the present invention is configured as described above, the discharge port through which the drain hose is inserted for discharging the water droplets generated by the dehumidification operation is installed on the floor of the equipment. It is not always necessary to install it at the bottom of the side surface, and it is possible to use the opening at a height of about 40 cm from the tip of the drain pipe at the lower end of the electronic dehumidifier, and even in such a state, the drain funnel and drainage Since the dehumidifying water is not stored in the pipe, the dehumidifying water will not overflow even if the dehumidifier is operated for a long time. Play.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of the usage situation of an electronic dehumidifier showing an embodiment of the present invention, FIG. 2 is an assembly drawing of a capillary hose that exhibits a capillary phenomenon, and FIG. 3 is a usage situation of a conventional electronic dehumidifier. FIG. 4 is a conceptual sectional view showing the function of a conventional electronic dehumidifier. 1: Closed switchboard, 2: Floor surface 3: Drain, 4: Drain hose 5: Humid air, 6: Dry air 7: Outlet port, 8: Water drop 9: Inlet port, 10: Exhaust port 20: Electronic dehumidifier, 21: Electronic cooling element 22: Cooling fin, 23: Heat dissipation fin 24: Fan, 25: Drainage funnel 26: Drain pipe, 27: Power transformer 28: Electronic component, 30: Bottom plate 40: Capillary hose, 41: Gauze 42: Wood Cotton thread

Claims (1)

[Scope of utility model registration request] 1. An electronic dehumidifier in which a drainage pipe is projected downwardly through a bottom plate and drains dehumidified water through a drainage hose, wherein the drainage hose is capillarized in an inner cavity of the drainage hose. An electronic dehumidifier characterized in that it is a capillary hose into which a braided fibrous body obtained by winding a sanitary cotton cloth exhibiting the above is inserted, and the capillary hose is directly connected to the drainage pipe.