JPH05285333A - Dehumidifier - Google Patents

Abstract

PURPOSE:To improve dehumidifying capacity, particularly that in the low temp. environment, to decrease power consumption and to lower cost and simultaneously to make equipment the small sized and lightweight one. CONSTITUTION:A dehumidifier is equipped with a vertical cylindrical casing 1 with both ends closed. An air suction opening 3 and an air blowout opening 4 are formed in a top wall 1a of the casing 1 and simultaneously a communicative path 7 for making both the openings 3, 4 communicate with each other is installed in the casing 1. A desiccant 8 is arranged in the middle of the communicative path 7. A fan 12 by which the air is sucked from the air suction opening 3 into the casing 1 and passed through the communicative path 7 to blow up from the air blowout opening 4 to outside the casing 1 is arranged in the communicative path 7.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a dehumidifier.

[0002]

2. Description of the Related Art Conventionally, there is known a dehumidifier which is provided with a compressor, a cooler, a radiator, a blower, a dehumidifying water tank and an overflow preventive device in a cabinet and dehumidifies by a refrigeration cycle. In this dehumidifier, air sucked into the cabinet by a blower is cooled and dehumidified by a cooler, reheated by a radiator, and then sent out of the cabinet.

[0003]

However, the dehumidifying capacity of the conventional dehumidifier is such that the relative humidity of the dehumidified air is 45 to 45%.
There is a problem that it can only be set to about 50%, which is not sufficient. In particular, since the dehumidification is performed by the refrigeration cycle, there is a problem that effective dehumidification performance cannot be obtained in a low temperature place. Moreover, since it is necessary to operate the compressor, the power consumption increases to 500 to 1000 W,
In addition to being uneconomical, there are problems in that some locations cannot be used depending on the electric capacity of the indoor wiring. Further, since the compressor, the cooler, the radiator, the blower, the dehumidifying water tank and the overflow preventing device are provided, there is a problem that the cost becomes high. Moreover, there is a problem in that it is inconvenient to move due to its large weight and size, and it cannot be installed in a small space such as a shoe box or a closet.

An object of the present invention is to provide a dehumidifier that solves the above problems.

[0005]

A dehumidifier according to the present invention has a casing having an air inlet and an air outlet, and a communication passage for communicating both the openings therein, and a casing disposed in the middle of the communication passage. The desiccant and the air blower that sucks air into the casing through the air suction port and blows the air through the communication passage to the outside of the casing through the air outlet.

The dehumidifier further includes a humidity sensor disposed on the air outlet side of the desiccant in the communication passage, and a notification unit that operates when the humidity detected by the humidity sensor exceeds a predetermined value. It is good to have.

Further, the dehumidifier is preferably provided with a closing means for sealing the air inlet and the air outlet.

[0008]

According to the dehumidifier of the present invention, the moisture in the air sucked into the casing from the air suction port by the blower is
While passing through the communication path, the desiccant is adsorbed and removed by the desiccant, and the dehumidified dry air is blown out from the air outlet.

Therefore, by appropriately selecting the type of the desiccant, the dehumidifying ability can be improved as compared with the conventional dehumidifier utilizing the refrigeration cycle. Moreover, sufficient dehumidifying performance can be obtained even at low temperatures. Further, since only the blower needs to be operated during the dehumidifying operation, the amount of power consumption is smaller than that of the conventional dehumidifier that requires the blower and the compressor to be operated. Further, unlike the conventional refrigeration cycle type, a compressor, a cooler, a radiator, a dehumidifying water tank and an overflow prevention device are not required.

The dehumidifier further includes a humidity sensor disposed closer to the air outlet than the desiccant in the communication passage, and a notification unit that operates when the humidity detected by the humidity sensor exceeds a predetermined value. If it is equipped with, it can be seen that the dehumidifying capacity of the desiccant has reached the limit due to the operation of the notification means when the humidity exceeds high, so if the blower operation is stopped at this point, waste of power Can be prevented.

Further, if the dehumidifier is provided with a closing means for sealing the air inlet and the air outlet, if both the openings are closed by the closing members when the operation is stopped, the air that has entered the casing will not be released. It is possible to prevent deterioration of the desiccant due to contact with the desiccant.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, left and right of each drawing are referred to as left and right.

This embodiment is only one specific example of the present invention, and does not limit the technical scope of the present invention.

1 and 2 show the structure of the dehumidifier according to the present invention.

1 and 2, the dehumidifier according to the present invention has a cylindrical casing whose upper and lower ends are closed.
It has (1). At least one of the top wall (1a) and the bottom wall (1b) of the casing (1) is preferably removable. The top wall (1a) of the casing (1) is formed with a recess (2) having a V-shaped cross section at the center of the left and right sides, and the air inlet (3) and the air outlet are on both sides of the recess.
(4) is formed. The air inlet (3) and the air outlet (4) are sealed by a cap (5) that is detachably attached to the upper end of the casing (1), as shown by the chain line in FIG. Recessed part (2) in the top wall (1a) of the casing (1)
A hanging partition wall (6) is integrally formed at the lower end of the casing, the lower end of which is close to the bottom wall (1b) .The partition wall (6) allows the air suction port (3) to be inserted into the casing (1). ) And the air outlet (4) are communicated with each other, and a U-shaped communication passage (7) is formed.

From the middle of the height of the left vertical portion (7a) connected to the air inlet (3) in the communication passage (7), the air outlet
The desiccant (8) is filled up to the middle of the height of the right vertical portion (7b) connected to (4). As a desiccant (8),
It is preferable to use a synthetic or natural zeolite, silica gel, activated alumina or the like which is regenerated by heating and can be used repeatedly.

A filter (9) is arranged near the upper end of the left vertical portion (7a) of the communication passage (7), and a desiccant regeneration heater (10) is arranged below the filter (9). A ventilation port is provided at a part near the upper end of the right vertical portion (7b) of the communication passage (7).
A horizontal partition (11) having (11a) is provided, and a blower (12) is arranged below the horizontal partition (11) and above the desiccant (8). This blower (12) sucks air into the casing (1) from the air inlet (3),
This air is passed through the desiccant (8) in the communication passage (7),
Further, the air is discharged from the air outlet (4) to the outside of the casing (1) through the ventilation port (11a).

A humidity sensor (13) is arranged below the horizontal partition (11) and above the desiccant (8) in the right vertical portion (7b) of the communication passage (7). Casing (1)
On the outer surface of the peripheral wall of the, the auditory notification member (14) including a buzzer that operates when the humidity detected by the humidity sensor (13) exceeds a predetermined high value or falls below a predetermined high value.
And a visual notification member (15) including a light emitting diode and the like.

In such a structure, during the dehumidifying operation, the cap (5) is removed and the blower (12) is operated. Then, the moisture in the air sucked into the casing (1) from the air suction port (3) by the blower (12) is discharged into the communication passage (7).
While passing through the desiccant (8), the desiccated (8) is adsorbed and removed, and the dehumidified dry air is blown out of the casing (1) through the air outlet (4). If, for example, a sufficient amount of zeolite is used as the desiccant (8), the relative humidity of the dry air blown out of the casing (1) can be 10% or less. At this time, the heater (10) is stopped.

When the amount of water adsorbed on the desiccant (8) increases and the dehumidifying performance decreases, the relative humidity of the air passing through the desiccant (8) increases. Then, when the humidity detected by the humidity sensor (13) reaches, for example, 60% or more, both the notification members (14) and (15) are actuated, and the dehumidification performance of the desiccant (8) is thereby reduced. be able to. Therefore, when the heater (10) is energized to heat the air sucked in from the air suction port (3) and the desiccant (8) is heated by this, the moisture adsorbed in the desiccant (8) evaporates. , As a result desiccant
It becomes possible to play (8). The desiccant (8) is preferably heated by carrying a dehumidifier to a place where humidification is necessary or where it can safely release moisture. The blower (1
Even if 2) is activated and the heater 10 is energized, the power consumption of the dehumidifier is about 110 W, which is smaller than that of the conventional dehumidifier. As the desiccant (8) is regenerated, the desiccant
The relative humidity of the air passing through (8) becomes low. Then, when the humidity detected by the humidity sensor (13) becomes, for example, 10% or less, both the notification members (14) and (15) are actuated, thereby knowing that the regeneration of the desiccant (8) is completed. You can Therefore, the power supply to the heater (10) is stopped. In addition,
The heater (10) may automatically stop when the humidity detected by the humidity sensor (13) falls below 10%, for example.

Further, when the operation is stopped, the blower (12) is stopped and the upper end of the casing (1) is capped.
If the air inlet (3) and the air outlet (4) are covered with (5) and the air that has entered the casing (1) touches the desiccant (8), the desiccant (8) Can be prevented from deteriorating.

In the above-mentioned embodiment, since the desiccant regenerated by heating is used, the desiccant can be regenerated and humidified at the time of regeneration. However, it is not always necessary to use a regenerated form of the desiccant. In this case, if the dehumidifying ability of the desiccant decreases, it is replaced with a new desiccant. Of course, in this case, the notification member does not need to operate even if the humidity detected by the humidity sensor falls below a predetermined low value.

[0023]

As described above, according to the dehumidifier of the present invention, the dehumidifying ability can be improved as compared with the conventional dehumidifier utilizing the refrigeration cycle. Moreover, since sufficient dehumidifying performance can be obtained even in a low temperature environment, it is also effective for dehumidifying a low temperature place such as in a closet. In addition, it consumes less power than conventional dehumidifiers that require the operation of blowers and compressors, which makes it economical, and how it can be used at home without being affected by the electrical capacity of electrical wiring. It can be used with any outlet. Further, the number of parts is smaller and the cost is lower than that of the conventional dehumidifier. Moreover, it can be made smaller and lighter than conventional dehumidifiers, and can be installed in small spaces such as shoe boxes and closets. Further, even when the vehicle is placed in such a closed space and operated, there is no component that is in a high temperature state, which is safe.

Further, the dehumidifier of the present invention operates when the humidity sensor arranged in the communication passage on the air outlet side of the desiccant and the humidity detected by the humidity sensor become a predetermined value or more. The provision of the notification means makes it possible to prevent waste of power.

Further, by providing a closing means for sealing the air inlet and the air outlet, it is possible to prevent the desiccant from being deteriorated when the operation is stopped.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a dehumidifier of the present invention.

FIG. 2 is a plan view of the dehumidifier of the present invention.

[Explanation of symbols]

 1 Casing 3 Air inlet 4 Air outlet 7 Communication passage 8 Desiccant 12 Blower

Claims (3)

[Claims] 1. A casing having an air inlet and an air outlet and having a communication passage provided therein for communicating the two openings, and a desiccant disposed in the middle of the communication passage.
A dehumidifier having a blower that sucks air into the casing from an air suction port, passes the communication passage, and blows the air from the air outlet to the outside of the casing. 2. A humidity sensor disposed on the air outlet side of the desiccant in the communication passage, and an informing means which is activated when the humidity detected by the humidity sensor exceeds a predetermined value. The dehumidifier according to claim 1. 3. The dehumidifier according to claim 1, further comprising closing means for sealing the air inlet and the air outlet.