JP2569166B2 - Dehumidification unit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cooling device using a thermoelectric cooling element utilizing heat absorption and heat radiation by the Peltier effect, and in particular, arranges a radiator and a cooler in the same box. And with one blower,
The present invention relates to a dehumidifier suitable for circulating air through the Peltier and the heat exchanger.

[Conventional technology]

In the conventional home dehumidifier, a system based on a refrigeration cycle equipped with a compressor using a refrigerant such as R-12 has prevailed. In addition, in the drain tank, in the full water stop mechanism,
A structure having a float in the tank was adopted.

[Problems to be solved by the invention]

The above conventional home dehumidifier is equipped with a compressor using a refrigerant such as R-12 for the purpose of reducing indoor humidity, preventing dew condensation on walls, windows, etc. due to moisture, preventing mold and ticks. A method using a refrigeration cycle is used, and a dehumidified water is stored in a water receiver, and a full water stop position for stopping operation when the dehumidified water reaches a certain amount by a float method or the like is provided. Due to such a structure, the heat exchangers of the radiator and the cooler have become large, and the external dimensions of the product have also become large in order to exhibit the dehumidifying ability corresponding to the space volume in the room. For this reason, when dehumidifying only a small space such as a closet, a closet, a shoe box, etc., close the room with the small space without installing it in the small space, open the sliding doors and doors of the small space, and indirectly The method of dehumidification was used, and the power consumption was more than necessary. Also, even if there is a space in the small space where a dehumidifier can be installed, the dehumidifying capacity is large for the small space, and a compressor, a radiator,
Due to the heat generated by the blower, the air temperature in the small space rises and the load applied to the refrigeration cycle increases, and the overload protection device for the compressor and blower operates and stops operation. It could not be closed and used, which was extremely inconvenient in use. In addition, the above-mentioned water stop device was provided with a device for stopping the operation to prevent overflow when a certain amount of dehumidified water accumulated in the water receiver, but when the water stop device did not operate due to an unexpected situation, There was a risk that the surroundings would be stained with dehumidified water.

It is an object of the present invention to provide a dehumidifier that can be used in a small space such as a closet, which can be made compact, has a humidity sensor, maintains the inside of the small space at a constant humidity, and detects an overflow sensor when a water stop device fails. To stop the operation and prevent surrounding dirt due to overflow of dehumidifying water.

[Means for solving the problem]

An object of the present invention is to use a thermoelectric element based on the Peltier effect (hereinafter, referred to as a thermoelement) to reduce the size of a heat exchanger of a radiator or a cooler in accordance with a load, as compared with a compressor system. The power consumption and heat dissipation are reduced, and even if the sliding doors and doors are installed in a small space and the door is closed, the rise in the air temperature in the space is small, and the load on the thermoelement and the blower is small, so that problems in use can be solved. . Further, the humidity sensor can keep the humidity in the space constant, eliminate unnecessary power consumption, and prevent an unexpected situation by providing a flood sensor.

[Operation] A radiator is placed on the heat radiation side of the thermoelement on the same box body surface.
A cooler is arranged on the heat absorbing side, the air suction port is set to the side, the air is circulated by the blower, and the discharge port of the dehumidified dry air is provided as a dehumidifying unit provided on the front side of the box body, and pushed in, By installing the dehumidifying unit in a small space having a door such as a closet at a position where the discharge port faces the door, the dry air is circulated along the inside of the door, and the inside of the small space gradually increases. Is dehumidified. Also, by providing an operation panel for driving operation, an outlet of a water receiver for storing dehumidified water, and an outlet of a filter for holding dust on the same surface as the discharge port, various handling when the door is opened. Can be processed on one side of the front. Further, the radiator, the thermoelement, the cooler, the dew receiver, and the water receiver are arranged in this order in the vertical direction, and the air passage area is 5% to 30% on the cooler side with respect to the radiator side, and is cooled. By blowing the low-temperature air that has passed through the device side onto the electrical storage box that controls the dehumidification unit, and installing a blower and transformer downwind of the air flow, the height of the dehumidification unit can be minimized. For example, when the dehumidifying unit is installed on the middle rail of the middle shelf in the closet, the water receiver can be easily taken out, and the electric component storage box can prevent the temperature rise of the storage components due to the cool air. The water receiver is provided with a recess in the depth direction of the dehumidifying unit, a magnet is housed in the recess, and a reed switch is provided in the case to make a closed circuit electrically by contact with the magnet. No operation is performed even if the operation switch is turned on. Further, the case portion for storing the water receiver has a double structure, and the overflow sensor is provided at the bottom in the case, so that the full-water detecting device breaks down due to an unexpected situation, and the dehumidified water is discharged from the water receiver. Even if it overflows, dehumidification water does not overflow from the dehumidification unit because the operation is stopped by the overflow sensor. Furthermore, since the suction port is provided with a humidity sensor that stops the operation when the humidity of the intake air reaches a certain low state and resumes the operation when the humidity increases, no useless operation is performed.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 14. FIG. 1 is a schematic partial cross-sectional perspective view of the dehumidifying unit main body 1, and arrows indicate the flow of air. 2 and 3 are a plan sectional view and a front sectional view of FIG. 1. Reference numeral 1 denotes a dehumidifying unit main body, in which a radiator 3 is provided on a heat radiating side of a thermoelement 2 and a cooler 4 is provided on a heat absorbing side. , A water receiver 6, a receiver 7, a water tank 8 provided with a drain port 5 a for guiding dehumidified water below the cooler 4.
Are sequentially arranged, and an electric component storage box 9 for controlling the operation of the dehumidifying unit 1, a transformer 10, and a blower 11 are arranged on the leeward side. Is blown out from a discharge port 1c provided partially on a surface opposite to the front discharge port 1b and the suction port 1a. When the cooler 6 has a temperature lower than the dew point temperature of the air, the moist air containing moisture sucked from the suction port 1a is condensed on the surface of the cooler 6 and drops to the lower dew tray 5 to receive water. It is stored in the container 6. The air that has passed through the cooler 6 passes through the ventilation passage 5b provided in the dew tray 5 and around the electric component storage box 9, and has a temperature slightly higher than the suction air that has passed through the radiator 3 from the discharge ports 1b and 1c. It is mixed with air and discharged. Where the ventilation path
The area of 5b is 5% to 30% of the ventilation path area on the radiator side, and the effective air volume of the cooler 4 is 5% to 30% as compared with the radiator 3 side.
And the required cooling power is obtained. Numeral 12 is a humidity sensor that detects the state of the sucked air (the amount of moisture contained in the air) and repeats the ON / OFF operation at the set humidity. Reference numeral 13 denotes a filter, which is formed in a mesh shape so as to prevent dust in the air from being sucked into the dehumidifying unit 1.
As in the case of the water receiver 6, it has a structure that can be pulled out from the same surface as the discharge port 1b, that is, from the front of the dehumidifying unit 1. An operation panel 1d for stopping the operation of the dehumidifying unit 1 is also provided on the same surface. Reference numeral 14 denotes a hanging bracket detachably provided on the upper part of the dehumidifying unit 1, and is a bracket for mounting to a center rail of a closet described later. FIG. 4 is a partial perspective view illustrating the structure of the full-water detecting device and the overflow sensor of the dehumidifying unit 1. The full-water detecting switch 15, which detects the full water, is provided on the rear part of the water tank 8, that is, on the opposite surface of the discharge port 1b. And an arm 15a, an overflow sensor 16, and a reed switch 17 for detecting the installation of the water receiver 6. An integrated case 18 is provided.
The receiving tray 7 has a water tank 8 structure in which a boss 7a is provided in a part of the receiving tray 7, and a hole 8a that slides smoothly with the boss 7a is provided. The water receiver 6 is provided with a water inlet 6a for receiving dehumidified water from the dew receiving tray 5 on the handle side 6b side, recesses a central portion on a side facing the handle 6b, and magnets 6c for attracting the reed switch 17 to the recess. Is provided. A plurality of holes 7b are provided on the rear bottom surface of the receiving tray 7, and serve to guide the dehumidified water overflowing from the water receiver 6 to the water tank 8. Here, the full-water detection structure is configured such that the spring force of the full-water detection switch 15 and the arm 15a, and the boss 6a of the pan 6 depend on the amount (weight) of the dehumidified water in the water receiver 6.
The water receiver 6 is tilted with the boss 7a as a fulcrum (the tray 7 is tilted backward in the drawing), the arm 15a is lowered, and the full water detection 15 is pressed, depending on the amount of dehumidified water. The power supply is cut off to stop the operation. The overflow sensor 16 is provided at the bottom of the case 18, and when the fullness detection mechanism cannot be operated due to an unexpected situation,
The dehumidified water overflowing from the water receiver 6 flows into the water tank 8 through the hole 7a, and is electrically connected by the water to cut off the power. In the case of the structure in which the dehumidifying water is stored in the water receiver 6, as shown in FIG. 5, it can be taken out from the front of the dehumidifying unit 1, and when the water is continuously drained without using the water receiver 6, as shown in FIG. This can be achieved by previously installing a drain pipe 19 near the location where the dehumidifying unit 1 is installed. In this case, as shown in FIG. 7, the full water detection switch 15, the arm 15a, and the reed switch 17 are removed from the case 18. The drain hose 20 is fixed to the drain port 5a of the dew receiving tray 5, and is disposed on the guard 21 to enable continuous drainage.
The drain hose 20 is formed of a bendable hose whose direction can be changed to either the left or the right. FIG. 9 shows an embodiment in which the dehumidifying unit 1 is installed in the closet 22. FIG.
FIG. 10 shows a specific example of installation in a closet 23, and FIG. 10 shows an example in which the dehumidifying unit 1 is installed at a relatively low position without being hung and the hanging metal fittings 14 of FIG. 3 are removed. When suspending the dehumidifying unit 1 as shown in FIG.
It can be hung by the installation example shown in FIG. When suspending the dehumidifying unit, a plurality of mounting brackets 24 are attached to the middle rail 22b of the middle shelf 22a such as the closet 22, and the flat portion 24 of the hanging bracket 24 is provided.
The hanging fitting 14 is slid on a, and the mounting fitting 24 and the hanging fitting 14 are fixed by the fixing fitting 25, so that the dehumidifying unit 1 can be removed from the mounting fitting 24 when putting out the futon, bedding, clothes, etc. The structure is to prevent it. Further, a power outlet 26 is provided near the dehumidifying unit 1. FIG.
FIG. 3 is a partial cross-sectional view in which the dehumidifying unit 1 is installed on a middle crosspiece such as a closet. The water receiver 6 is located below a lower part of the middle shelf 22a and does not hinder removal. The dimensions do not hinder removal. FIG. 8 shows the entire electric circuit. Since the thermoelement 2 absorbs heat on one side of the thermoelement 2 and releases heat on the other side when a direct current is supplied, the power supply for ordinary households, that is, the AC power supply, is shown. In order to operate the thermoelement 2, a rectifier circuit 28 is necessary. Further, in general, the home power supply is 100 V AC in Japan and 110 V outside Japan.
２2 to several tens of volts, and in the case of the thermoelement 2, several volts, so that a step-down conversion, that is, a transformer 10 is required in addition to the rectifier circuit 28. The rectifying circuit 28 is configured by a circuit for operating the thermoelement 2. 29 is a power switch, and 30 is a fan motor. FIG. 15 shows a change in the temperature of the cooler 4 during defrosting, in which the temperature of the intake air of the dehumidifying unit 1 falls, and accordingly, the temperature of the cooler surface falls to below freezing for 2 to 3 hours. Then, the direction (positive, negative) of the current flowing through the thermoelement 2 is shown in FIG.
The temperature of the cooler 4 rises by switching with 27, the frost of the cooler 4 is thawed, and the surface temperature of the cooler 4 becomes about 10 to
When the temperature reaches 15 degrees, the direction of the current flowing through the thermoelement 2 is switched. This temperature control is performed by a temperature detection thermostat (not shown) attached to the cooler 4 and a control circuit shown in FIG. It is comprised of a defrosting device performed by an electric control timer.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

1. The present invention makes use of the Peltier effect, which makes it possible to reduce the size of the dehumidifier. Especially, it has a relatively low frequency of opening and closing, and pushes in on the north and northwest facing the danger of moisture. Ideal for dehumidifying small spaces such as closets with high airtightness, highly damp crate boxes, kitchen storage boxes with a lot of water handling, and no temperature rise due to the heat generated by the compressor as in the conventional compressor system. The humidity in a predetermined space can be maintained.

2. According to the present invention, the air flow is set to a small space having a door as described above by using a horizontal suction front discharge, so that the discharged dry air flows upward due to its small specific weight. Due to the nature, the air circulation in the small space is forcibly performed along the inner surface of the door, and the space can be dehumidified.

3. The present invention provides that the filter is taken out, the water receiver is taken out, and the operation plate is provided on the front side of the discharge port, that is, the dehumidifying unit, so that when the door is opened, all operations can be performed on one side and only on the front side. Excellent handling due to

4. The present invention can reduce the height direction of the dehumidifying unit by making the dehumidifying mechanism (radiator, cooler) centering on the thermoelement and the processing of the dehumidifying water in the vertical direction. Even when installed, the operation of taking out the water receiver and taking out the filter is excellent. In addition, in the case of continuous drainage, a drain hose is connected to the drain port of the dew tray, and the drain hose is freely arranged left and right behind the dehumidification unit. Are better.

5. In the present invention, the ventilation path of the cooler and the radiator is divided into two,
In addition, by passing air having a lower temperature than the suction air that has passed through the cooler around the electric component storage box, the internal electric components are cooled, and the temperature rise of each electric component can be prevented. This is an excellent configuration that can prevent the temperature of the transformer from rising due to the ventilation.

6. According to the present invention, in the case of a water storage type using a water receiver, a magnet is provided at the rear of the water receiver, and when the water receiver is not installed, even if the power switch is turned on, even if the power switch is turned on, a reed switch in the case is provided. Those that do not conduct.

7. In the present invention, the lower part of the water receiver has a double structure, and even in the event of an unforeseen event, including continuous drainage, the dehumidified water flows into the water tank and the overflow sensor detects it. The dehumidifying water does not overflow outside the dehumidifying unit by detecting and shutting off the power.

8. The present invention has an excellent structure in which a humidity sensor is provided in the vicinity of the suction port to detect a humidity state of the space and to operate the operation without wasting power consumption.

[Brief description of the drawings]

1 is a schematic partial cross-sectional perspective view of one embodiment of the present invention, FIG. 2 is a plan cross-sectional view of FIG. 1, FIG. 3 is a front cross-sectional view of FIG. 1, and FIG. FIG. 5 and FIG. 6 are perspective views showing the structure of the overflow sensor, FIG.
The figure is a perspective view at the time of continuous drainage, FIG. 8 is an entire electric circuit diagram, FIG. 9 and FIG. 10 are explanatory diagrams showing an example in which the dehumidifying unit of the present invention is installed in a closet and a closet.
FIG. 11 to FIG. 13 are perspective views showing the installation procedure in the closet, and FIG. 14 is a partial sectional view at the time of installation in the closet.
FIG. 15 is a diagram showing a change in the surface temperature of the cooler during defrosting. 1 ... dehumidifying unit, 2 ... thermoelement, 3 ...
Radiator, 4 ... cooler, 5 ... dew tray, 6 ... water receiver, 7 ... tray, 8 ... water tank, 9 ... electrical goods storage box, 14
…… Hanging bracket, 15… Full-water detection switch, 16… Overflow detection thermo

Claims (6)

(57) [Claims] An electronic cooling type dehumidifier in which a radiator is provided above a thermoelectric cooling element and a cooler is provided below the thermoelectric cooling element and air is circulated by a blower in the same box body, wherein a ventilation path of the radiator is fully opened. A dehumidifying unit, wherein the area of the ventilation path of the cooler is set to 5% to 30% of the area of the ventilation path of the radiator. 2. A dew pan, a water receptacle, a pan,
2. The dehumidifying unit according to claim 1, further comprising a water tank, an overflow sensor for detecting dehumidifying water overflowing from a receiving tray and a water receiver and stopping the dehumidifying operation after the water tank. 3. A dehumidifying operation in which a magnet is provided on the side opposite to the handle 6 of the water receiver, and when the water receiver is housed in the box body, it comes into contact with a reed switch provided in the full water stop device to perform dehumidification operation. 2. The dehumidifying unit according to claim 1. 4. The container according to claim 1, wherein the ceiling surface of the box is formed substantially flat, a plurality of mounting holes are provided in the ceiling surface, and a substantially U-shaped hanging bracket is detachable. Dehumidification unit. 5. The dehumidifying unit according to claim 1, further comprising a humidity sensor at an inlet of an air passage of the radiator and the cooler for operating and stopping at an arbitrary humidity. 6. The device according to claim 1, wherein the suction port is formed on a side surface of the dehumidifying unit, a discharge port is provided on the front side, and a filter, a water receiver, and an operation plate are provided on the same surface. Dehumidification unit.