KR102489554B1 - Small dehumidifier - Google Patents

Abstract

A small dehumidifier according to the present invention is configured to dehumidify an inside of a storage cabinet during a dehumidifying operation after installed in the inside of the storage cabinet that can be opened and closed by a door and discharge the regenerating air that regenerates a dehumidifying filter during a regeneration operation to the outside of the cabinet through a gap in the door or an opening of the storage cabinet, so that the dehumidifier can be installed in the storage cabinet and conveniently used. In addition, a dehumidifying agent with moisture absorption ability suitable for the temperature and humidity conditions of the storage cabinet is used to suck the air inside the storage cabinet during the dehumidifying operation, thereby enabling sufficient dehumidification. Furthermore, a regeneration heater or a blower is controlled during the dehumidifying operation such that regeneration temperature of the dehumidifying filter is 60 ℃ or less, thereby allowing sufficient regeneration to be performed at the temperature of 60 ℃ or less and damage to the storage cabinet or articles around the door, which could be done by hot regenerating air discharged during the regeneration operation can be prevented. Accordingly, restrictions on the installation location of the small dehumidifier in real life can be eliminated.

Description

Small dehumidifier {Small dehumidifier}

The present invention relates to a small-sized dehumidifier, and more particularly, to a small-sized dehumidifier mounted inside a storage cabinet to dehumidify the inside of a storage cabinet.

In general, a dehumidifier is a device for removing moisture from indoor air to create a pleasant indoor environment.

A conventional dehumidifier includes a compressor, a condenser, an expansion device, and an evaporator to condense water vapor in the air to control humidity.

However, since the conventional dehumidifier includes a compressor, it has a problem in that it is bulky and consumes a lot of power.

Korean Patent Registration No. 10-2300902

An object of the present invention is to provide a small-sized dehumidifier that has a simple structure and can improve convenience of use by eliminating restrictions on an installation location.

The small dehumidifier according to the present invention is installed on at least one of an inner surface of a storage cabinet that can be opened and closed through a door and an inner surface of the door, and dehumidifies the inside of the storage cabinet and removes regenerated air generated during regeneration operation to the door crevice of the door or the inner surface of the door. A small-sized dehumidifier discharging to the outside of the storage cabinet through an opening of the storage cabinet, an intake chamber for sucking in air from the storage cabinet, an exhaust chamber for discharging air introduced into the intake chamber, and communication between the intake chamber and the exhaust chamber to prevent the air from flowing into the storage cabinet. a dehumidifier case including a dehumidifying chamber formed to dehumidify air introduced from the intake chamber and guide it to the exhaust chamber; a blower for flowing air in the dehumidifier case; a dehumidifying filter disposed in the dehumidifying chamber and including a dehumidifying agent that absorbs moisture in the air introduced from the intake chamber during a dehumidifying operation; a regeneration heater which heats the air introduced from the intake chamber to flow into the dehumidification filter in order to regenerate the dehumidification filter during the regeneration operation; and a control unit controlling operations of the blower and the regenerative heater, wherein the dehumidifying agent has a moisture absorption capacity when the temperature of ambient air is in the range of 10° C. to 30° C. and the relative humidity is 20% or less so that the moisture absorption amount increases during the dehumidification operation. 20wt% or less, the moisture absorption capacity is 40wt% or more when the temperature of ambient air is in the range of 10 ° C to 30 ° C and the relative humidity is 50% or more, and the controller controls the high-temperature regeneration air discharged from the exhaust chamber during the regeneration operation In order to prevent damage to the small-sized dehumidifier itself or articles around the small-size dehumidifier due to the above, the regeneration heater or the blower is controlled so that the regeneration temperature of the dehumidification filter is 60° C. or less, and the desiccant is removed by the regeneration operation. The moisture absorption capacity is 20wt% or less when the temperature of the ambient air is in the range of 40°C to 60°C and the relative humidity is 20% or less so as to improve the regeneration ability.

An external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge high-temperature regeneration air generated during the regeneration operation to the outside through a door gap of the door, wherein the external exhaust port communicates with the door gap of the door. it is fitted

An external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge the high-temperature regeneration air generated during the regeneration operation to the outside through the door gap of the door, and an exhaust duct connecting the external exhaust vent and the door gap of the door. more includes

An exhaust adapter coupled to an end of the exhaust duct and extended along a door gap of the door is further included.

An external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge the high-temperature regeneration air generated during the regeneration operation to the outside through the door gap of the door, coupled to the external exhaust vent, and along the door gap of the door. An elongated exhaust adapter is further included.

An air inlet formed in the air intake chamber of the dehumidifier case may further include an air inlet for sucking air inside the storage cabinet into the air intake room during the dehumidifying operation and the regeneration operation.

An internal exhaust port formed in the exhaust chamber of the dehumidifier case to discharge air from the exhaust chamber to the inside of the storage cabinet, and an operation rotatably coupled to the exhaust chamber and including the dehumidification operation and the regeneration operation. An exhaust damper selectively opening and closing the external exhaust outlet, the internal exhaust outlet, and the outlet of the dehumidifying chamber according to a mode may be further included.

The control unit controls the exhaust damper to open the internal exhaust port and the outlet of the dehumidification chamber and shields the external exhaust port during the dehumidifying operation, and to block the internal exhaust port during the regeneration operation. The external exhaust port and the outlet of the dehumidifying chamber are controlled to be opened, and when the regeneration operation is finished, the exhaust damper is controlled to block the outlet of the dehumidifying chamber.

A small dehumidifier according to another aspect of the present invention is installed on at least one of an inner surface of a storage cabinet that can be opened and closed through a door and an inner surface of the door, and dehumidifies the inside of the storage cabinet and removes regenerated air generated during a regeneration operation to the door. A small dehumidifier that discharges to the outside of the storage cabinet through a door gap or an opening of the storage cabinet, an intake chamber for sucking air in the storage cabinet, an exhaust chamber for discharging the air introduced into the intake chamber, and a space between the intake chamber and the exhaust chamber. a dehumidifier case including a dehumidification chamber communicated with and formed to dehumidify air introduced from the intake chamber and guide the air to the exhaust chamber; a blower for flowing air in the dehumidifier case; a dehumidifying filter disposed in the dehumidifying chamber and including a dehumidifying agent that absorbs moisture in the air introduced from the intake chamber during a dehumidifying operation; a regeneration heater which heats the air introduced from the intake chamber to flow into the dehumidification filter in order to regenerate the dehumidification filter during the regeneration operation; an intake vent formed in the intake chamber of the dehumidifier case to suck air inside the cabinet into the intake chamber during the dehumidifying operation and the regeneration operation; an external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge high-temperature regeneration air generated during the regeneration operation to the outside through a door gap of the door; an exhaust duct connecting the external exhaust port and the door gap of the door; an exhaust adapter coupled to an end of the exhaust duct and extended along the door gap of the door; an internal exhaust port formed in the exhaust chamber of the dehumidifier case to discharge air in the exhaust chamber into the storage cabinet; an exhaust damper rotatably coupled to the exhaust chamber and selectively opening and closing the external exhaust vent, the internal exhaust vent, and the outlet of the dehumidifying chamber according to an operation mode including the dehumidification operation and the regeneration operation; and a control unit controlling operations of the blower and the regenerative heater, wherein the dehumidifying agent has a moisture absorption capacity when the temperature of ambient air is in the range of 10° C. to 30° C. and the relative humidity is 20% or less so that the moisture absorption amount increases during the dehumidification operation. 20wt% or less, the moisture absorption capacity is 40wt% or more when the temperature of ambient air is in the range of 10 ° C to 30 ° C and the relative humidity is 50% or more, and the controller controls the high-temperature regeneration air discharged from the exhaust chamber during the regeneration operation In order to prevent damage to the small-sized dehumidifier itself or articles around the small-size dehumidifier due to the above, the regeneration heater or the blower is controlled so that the regeneration temperature of the dehumidification filter is 60° C. or less, and the desiccant is removed by the regeneration operation. The moisture absorption capacity is 20wt% or less when the temperature of the ambient air is in the range of 40°C to 60°C and the relative humidity is 20% or less so as to improve the regeneration ability.

The small dehumidifier according to the present invention is installed inside a storage cabinet that is opened and closed through a door, dehumidifies the inside of the storage cabinet during dehumidification operation, and regenerates air regenerated by a dehumidifying filter during regeneration operation through a door gap of the door or an opening of the storage cabinet. By being configured to be discharged to the outside of, there is an advantage that it can be installed in the storage cabinet and used conveniently.

In addition, by using a desiccant having a moisture absorbing ability suitable for the temperature and humidity conditions of the storage cabinet, there is an advantage in that sufficient dehumidification is possible by sucking in air inside the storage cabinet during dehumidification operation.

In addition, by controlling the regeneration heater or the blower so that the regeneration temperature of the dehumidifying filter is 60 ° C or less during the regeneration operation, sufficient regeneration can be performed even at a temperature of 60 ° C or less, and high-temperature regeneration air discharged during the regeneration operation may cause Since damage to items around the closet or door can be prevented, restrictions on the installation place of the small dehumidifier in real life can be eliminated.

In addition, since the structure of the small dehumidifier is compact, the size of the space it occupies is small, so it is easy to install it inside the cabinet.

1 is a view showing a small-sized dehumidifier according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a dehumidifying operation of the small dehumidifier shown in FIG. 1 .
FIG. 3 is a diagram illustrating a regeneration operation of the small dehumidifier shown in FIG. 1 .
4 is a graph showing changes in moisture absorption ability in an equilibrium state according to relative humidity of a desiccant according to an embodiment of the present invention.
5 is a graph showing an equilibrium state humidity curve on the surface of a desiccant according to an embodiment of the present invention, showing an ideal cycle state.
6 is a view showing a small dehumidifier according to another embodiment of the present invention.
FIG. 7 is a cross-sectional view seen from the direction BB of FIG. 6 .

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing an example of a small-sized dehumidifier according to an embodiment of the present invention.

Referring to FIG. 1, a small dehumidifier 100 according to an embodiment of the present invention is installed on at least one of an inner surface of a storage cabinet 2 that can be opened and closed through a door 1 and an inner surface of the door 1, , It is a dehumidifier that discharges the regeneration air generated during the regeneration operation to the outside of the cabinet 2 through the door gap G of the door 1 or the opening of the cabinet 2. Here, the storage closet 2 includes a closet, a shoe closet, and a closet.

Hereinafter, in this embodiment, the cabinet 2 is rotatably coupled so that the two doors 1 are opened in the left and right directions, respectively, on the open front surface, and the door gap G of the door 1 is 2 An example of referring to a gap between the doors 1 of the dog will be described. However, it is not limited to this, and the number of doors of the cabinet 2 can be changed in various ways, and it is possible that there is only one door 1, and the gap G of the door 1 is the door 1 ) and the storage cabinet 2, of course it is also possible. In addition, when an opening is formed in the storage closet 2, discharge to the outside of the storage closet 2 is also possible through the opening of the storage closet 2.

In addition, in this embodiment, the small dehumidifier 100 will be described as being mounted on the inner upper surface of the cabinet 2 as an example. However, it is not limited to this, and if the external exhaust port of the small dehumidifier 100 faces the door gap G of the door 2, the mounting position of the small dehumidifier 100 can be changed in various ways.

The small dehumidifier 100 includes a dehumidifier case 10, a blower 20, a dehumidification filter 30, a regeneration heater 40, an exhaust damper 60, and a control unit (not shown).

The dehumidifier case 10 is mounted on the inner upper surface of the cabinet 2. The dehumidifier case 10 will be described as being formed in the shape of a rectangular parallelepiped elongated in the direction of air flow.

The inside of the dehumidifier case 10 is sequentially partitioned into an intake chamber (A), a dehumidification chamber (D), and an exhaust chamber (E) in the direction of air flow.

The intake chamber (A) is a region formed to suck air in the storage space (S) of the storage closet (2). An internal intake port 11a is formed in the intake chamber A.

The internal intake port 11a is formed on a surface of the intake chamber A facing the storage space S, and is an intake port for sucking air from the storage space S into the intake compartment A. The internal intake port 11a is described as an opening hole, but is not limited thereto, and a separate opening/closing member or ventilation grill may be installed.

The exhaust chamber (E) is a region formed to discharge the air introduced into the intake chamber (A). The small dehumidifier 100 is mounted so that the exhaust chamber E faces the door gap G of the door 1. An internal exhaust port 12a and an external exhaust port 12b are formed in the exhaust chamber E.

The internal exhaust port (12a) is formed to communicate with the storage space (S) in the exhaust chamber (E) of the dehumidifier case 10, and the air in the exhaust chamber (E) is supplied to the storage space (S). It is an exhaust pipe that discharges to the inside. The internal exhaust port 12a is described as an opening hole, but is not limited thereto, and a separate opening/closing member or ventilation grill may be installed.

The external exhaust port (12b) communicates with the door gap (G) of the door (1) in the exhaust chamber (E) of the dehumidifier case (10), and supplies air from the exhaust chamber (E) to the storage cabinet (2). It is an exhaust port for discharging to the outside. The external exhaust port 12b is described as an opening hole, but is not limited thereto, and a separate opening/closing member or ventilation grill may be installed.

The dehumidifying chamber (D) communicates between the intake chamber (A) and the exhaust chamber (E) to dehumidify the air sucked from the intake chamber (A) inside and guide it to the exhaust chamber (E). is formed In this embodiment, the dehumidifying chamber (D) will be described as an example formed in the shape of a passage or a duct.

Inside the dehumidifying chamber D, the regeneration heater 40, the dehumidifying filter 30, and the blower 20 are disposed in a line.

The blower 20 causes air in the dehumidifier case 10 to flow. That is, the blower 20 is a fan that sucks air and blows it in a direction toward the exhaust chamber E. In this embodiment, the blower 20 is described as being installed inside the dehumidifier case 10 as an example, but is not limited thereto, and is installed outside the dehumidifier case 10 or at a position where air can flow. Any ramen is applicable.

The dehumidifying filter 30 is a filter that absorbs moisture from the air passing through the dehumidifying chamber D during a dehumidifying operation to remove moisture from the storage space S. The dehumidifying filter 30 includes a dehumidifying agent for adsorbing moisture.

The desiccant has a moisture absorption capacity of 20wt% or less when the temperature of the ambient air is in the range of 10°C to 30°C and the relative humidity of the ambient air is 20% or less, and the temperature of the ambient air is in the range of 10°C to 30°C and the relative humidity of the ambient air is 20% or less. When the humidity is 50% or more, a moisture absorption capacity of 40wt% or more is used. This is because the efficiency of the desiccant during the dehumidifying operation is high only when the change in moisture absorption amount is large up to 50%, which is a general set humidity, in a state in which the moisture content of the desiccant is lowered after regeneration and natural cooling of the desiccant.

In addition, the desiccant has a moisture absorption capacity of 20wt% or less when the ambient air temperature is in the range of 40° C. to 60° C. and the relative humidity of the ambient air is 20% or less. This is because, when regenerating the desiccant, a desiccant having a low equilibrium water content, that is, a low moisture absorption capacity, at a relative humidity of air of 20% or less must be used so that regeneration can be performed well during the regeneration operation.

4 is a graph showing changes in moisture absorption ability in an equilibrium state according to relative humidity of a desiccant according to an embodiment of the present invention. 5 is a graph showing an equilibrium state humidity curve on the surface of a desiccant according to an embodiment of the present invention, showing an ideal cycle state.

Referring to FIGS. 4 and 5 , when the cycle operation consisting of the dehumidification operation and the regeneration operation is performed periodically or non-periodically, the equilibrium wet air condition on the surface of the desiccant will be described.

At a first time point (1) including a time point before the dehumidification operation starts or a time point when natural cooling is finished after the regeneration operation, the temperature of the ambient air is in the range of about 10° C. to 30° C., and the equilibrium relative humidity of the air on the surface of the desiccant is less than 20%. Here, it is assumed that the temperature at the first time point 1 is 20° C. and the equilibrium relative humidity is 10%.

In addition, at the second point in time (2) when the dehumidifying operation is completed, the temperature of the ambient air is in the range of about 10° C. to 30° C., the relative humidity of the ambient air is about 50% or more, and at this time, the moisture absorption capacity of the desiccant is 40 wt. more than % Here, it is assumed that the temperature of the second time point 2 is 20° C. and the relative humidity is 60%.

That is, at the first time point (1), the moisture absorption capacity of the desiccant is 20 wt% or less, and at the second time point (2), the moisture absorption ability is 40 wt% or more, so that the first time point (1) and the second time point ( Since the difference in moisture absorption ability of the desiccant is large under each temperature and relative humidity condition of 2), dehumidification can be performed more smoothly and effectively during the dehumidifying operation.

In addition, when the regeneration operation is performed, the temperature of the regeneration air is in the range of 40° C. to 60° C. and the relative humidity is 20% or less. Here, it is assumed that the regeneration temperature is 50° C. and the relative humidity is 10%.

That is, as the regeneration operation proceeds, the desiccant is in equilibrium with air having a temperature of 50° C. and a relative humidity of 10%, that is, air under the condition of temperature and relative humidity at the fourth time point (4). The regenerative ability of the desiccant due to the regenerating operation may be improved only when the regenerative capacity is reduced to 20 wt% or less.

In addition, the desiccant is made of a material that can be sufficiently regenerated even when the ambient air temperature is 60° C. or less, so that the dry storage or the items around the air outlet 102 of the dry storage are not deformed or damaged due to the hot and humid regenerated air. It can be prevented.

As the dehumidifying agent, the dehumidifying agent described in Korean Patent Registration No. 10-0963116 may be used, but the present invention is not limited thereto and various dehumidifying agents may be used.

The regeneration heater 40 is a heating device that heats the air introduced from the intake chamber A to regenerate the dehumidification filter 30 during regeneration operation and causes the air to flow into the dehumidification filter 30 . The regeneration heater 40 is disposed upstream of the dehumidifying filter 30 inside the dehumidifying chamber D.

The exhaust damper 60 is provided inside the exhaust chamber E, and the internal exhaust port 12a, the external exhaust port 12b and the dehumidification according to an operation mode including the dehumidification operation and the regeneration operation. It is a damper that selectively opens and closes the outlet of the seal 12. The exhaust damper 60 is rotatably installed at the inner center of the exhaust chamber E and is formed in a wing shape, so that the three internal exhaust vents 12a, the external exhaust vent 12b and the dehumidifying chamber 12 ) is a three-way damper that selectively opens and closes at least some of the outlets to control the discharge direction of air.

Meanwhile, the small dehumidifier 100 may further include a plurality of temperature sensors for measuring air temperature and a plurality of humidity sensors for measuring air humidity.

Hereinafter, in this embodiment, the plurality of temperature sensors will be described as including an intake air temperature sensor, a reconditioning air temperature sensor, and an exhaust air temperature sensor installed inside the dehumidifier case 10 as an example.

The intake air temperature sensor is installed at the inlet side of the dehumidifying chamber (D) and measures the temperature of the intake air sucked into the intake chamber (A). However, it is not limited thereto, and the intake air temperature sensor can be installed on an outer surface of the intake chamber (A) or the dehumidifier case (10) facing the storage space (S) or on the storage space (S). Do.

The reconditioning air temperature sensor is installed on the discharge side of the regeneration heater 40 in the dehumidification chamber D, and is used to regenerate the dehumidification filter 30 after being heated by the regeneration heater 40 during the regeneration operation. Measure the temperature of the regeneration air.

The exhaust air temperature sensor is installed on the outlet side of the dehumidifying chamber (D) and measures the temperature of the exhaust air discharged through the exhaust chamber (E). However, it is not limited thereto, and the exhaust air temperature sensor may be installed in the exhaust chamber (E).

The plurality of humidity sensors include an intake air humidity sensor and an exhaust air humidity sensor.

The intake air humidity sensor is installed at the entrance side of the dehumidifying chamber (D) and measures the humidity of indoor air sucked into the intake chamber (A). However, it is not limited thereto, and the intake air humidity sensor may be installed on an outer surface of the intake chamber (A) or the dehumidifier case 10 toward the storage space (S) or installed on the storage space (S). Do.

The exhaust air humidity sensor is installed on the outlet side of the dehumidifying chamber (D) and measures the humidity of the exhaust air discharged through the exhaust chamber (E). However, it is not limited thereto, and the exhaust air humidity sensor may be installed in the exhaust chamber (E).

In addition, the compact dehumidifier 100 may further include a dew point temperature detector for detecting the dew point temperature of the exhaust air.

The dew point temperature detection unit (not shown) may be a dew point thermometer for measuring the dew point temperature of the exhaust air, or may be a derivation unit for deriving the dew point temperature using the temperature and humidity of the exhaust air.

In addition, the small dehumidifier 100 further includes a controller (not shown) that controls operations of the regenerative heater 40 and the exhaust damper 60 according to the operation mode.

Of course, the control unit (not shown) may directly derive the dew point temperature using the temperature and humidity of the exhaust air.

The operation of the small dehumidifier according to an embodiment of the present invention configured as described above will be described as follows.

The dehumidification operation of the small dehumidifier 100 may be performed according to the humidity of the intake air sucked into the intake chamber (A), or may be performed according to the humidity of the storage space (S). The direct dehumidification operation may be performed when a start signal for the dehumidification operation is input, or may be performed according to a dehumidification time set in advance by a user.

Hereinafter, in the present embodiment, the dehumidifying operation is described as being performed according to the humidity of the intake air sucked into the intake chamber (A) as an example.

The control unit (not shown) starts the dehumidification operation when the humidity of the intake air measured by the intake air humidity sensor exceeds a preset set humidity.

FIG. 2 is a diagram illustrating a dehumidifying operation of the small dehumidifier shown in FIG. 1 .

Referring to FIG. 2 , during the dehumidifying operation, the control unit (not shown) operates the blower 20 and stops the operation of the regeneration heater 40 .

In addition, the control unit (not shown) controls the exhaust damper 60 to open the outlet of the dehumidifying chamber D and the internal exhaust port 12a, and to shield the external exhaust port 12b.

When the blower 20 operates, the air inside the storage space S is sucked into the intake chamber A through the internal intake port 11a.

The air sucked into the intake chamber (A) is introduced into the dehumidification chamber (D).

The air introduced into the dehumidifying chamber (D) passes through the dehumidifying filter (30), removes moisture, and then flows into the exhaust chamber (E).

In this embodiment, since the desiccant has a moisture absorption capacity of 40wt% or more when the ambient air temperature is in the range of 10° C. to 30° C. and the relative humidity of the ambient air is 50% or more, the storage space (S) during the dehumidifying operation is used. ) can sufficiently absorb and dehumidify the moisture in the internal air.

The air introduced into the exhaust chamber (E) is discharged to the storage space (S) through the internal exhaust port (12a).

Therefore, during the dehumidifying operation, the air inside the storage space (S) is sucked into the dehumidifier case 10, dehumidified therein, and then discharged back into the storage space (S) to be circulated.

Meanwhile, when the humidity of the intake air measured by the intake air humidity sensor is equal to or less than a preset set humidity, the controller (not shown) ends the dehumidification operation.

In addition, when the rate of change of the temperature of the exhaust air measured by the exhaust air temperature sensor is equal to or less than a preset rate of change, the controller (not shown) may terminate the dehumidification operation. When the change in temperature of the exhaust air passing through the dehumidifying filter 30 is within a preset first temperature difference for a set time, it is determined that the dehumidifying filter 30 is saturated with moisture and the dehumidifying operation may be terminated. Here, the setting time is 1 minute, and the first temperature difference is described as an example of 1°C. That is, as moisture in the air is adsorbed while passing through the dehumidifying filter 30, the humidity of the air decreases and the temperature of the air increases due to the release of heat of adsorption, so that the dehumidifying filter 30 is saturated with the adsorbed moisture and the moisture removal rate When this decreases, the change in temperature and humidity almost disappears, and thus the dehumidification operation can be ended.

Meanwhile, the control unit (not shown) performs the regeneration operation immediately after the dehumidification operation ends.

FIG. 3 is a diagram illustrating a regeneration operation of the small dehumidifier shown in FIG. 1 .

Referring to FIG. 3 , during the regeneration operation, the controller (not shown) operates both the blower 20 and the regeneration heater 40 .

In addition, the control unit (not shown) controls the exhaust damper 60 to shield the internal exhaust port 12a and open the external exhaust port 12b and the outlet of the dehumidifying chamber D.

When the blower 20 is operated, the air inside the storage space S is sucked into the intake chamber A through the internal intake port 11a.

The air sucked into the intake chamber (A) is introduced into the dehumidifying chamber (D).

The air introduced into the dehumidifying chamber D is heated while passing through the regeneration heater 40 .

The high-temperature air heated by the regeneration heater 40 may regenerate the dehumidification filter 30 by removing moisture absorbed by the dehumidification filter 30 while passing through the dehumidification filter 30 .

In this embodiment, since the dehumidifying agent of the dehumidifying filter 30 has a characteristic that the moisture absorption capacity is reduced to 20wt% or less when the temperature of the ambient air is in the range of 40 ° C to 60 ° C and the relative humidity is 20% or less, Under the conditions of the regeneration operation, it can be sufficiently regenerated.

The air discharged after regenerating the dehumidifying filter 30 is introduced into the exhaust chamber E and discharged to the outside of the cabinet 1 through the external exhaust port 12b and the door gap G of the door 1. do.

At this time, the control unit (not shown) controls the operation of the regeneration heater 40 or the blower 20 so that the regeneration temperature of the dehumidifying filter 30 is 60° C. or less. That is, since the heat resistance limit temperature of general plastic household products is about 60°C, the regeneration temperature of the dehumidifying filter 30 is controlled to be 60°C or less. Accordingly, damage to the door 1 or articles around the door 1 due to the high-temperature regeneration air discharged through the door gap G of the door 1 can be prevented.

Meanwhile, if the difference between the temperature of the reconditioning air measured by the reconditioning air temperature sensor and the temperature of the exhaust air measured by the exhaust air temperature sensor is within a preset minimum temperature difference, the regeneration operation is terminated.

Here, the minimum temperature difference is described as an example of 1 ℃. During the regeneration operation, when the temperature of the exhaust air measured by the exhaust air temperature sensor gradually increases and becomes almost similar to the temperature of the regeneration air discharged from the regeneration heater 40, it is determined that the dehumidification filter 30 has sufficiently regenerated. Upon determining, the regeneration operation may be terminated.

However, it is not limited thereto, and when a preset regeneration operation time elapses, it is of course possible to end the regeneration operation.

Upon completion of the regeneration operation, the control unit (not shown) stops the operation of the blower 20 and the regeneration heater 40 . In addition, the controller (not shown) controls the exhaust damper 60 to block the outlet of the dehumidifying chamber D.

Meanwhile, during the regeneration operation, the control unit (not shown) may detect the dew point temperature of exhaust air discharged from the dehumidifying chamber D to the exhaust chamber E.

The dew point temperature can be obtained by using a dew point thermometer, or by using the temperature measured by the exhaust air temperature sensor and the humidity measured by the exhaust air humidity sensor.

The control unit (not shown) compares the dew point temperature of the exhaust air with a preset temperature range. Here, the set temperature range may be set to a condensation generating temperature, and may be set to a range of a minimum temperature obtained by subtracting a predetermined temperature from the condensation generating temperature and a maximum temperature obtained by adding a predetermined temperature to the condensation generating temperature. .

When the dew point temperature of the exhaust air exceeds the maximum temperature of the set temperature range, the output of the regeneration heater 40 is reduced to control the temperature of the reconditioning air to be lowered. When the temperature of the reconditioning air is lowered, the dew point temperature of the exhaust air is lowered, so that condensation can be prevented.

While reducing the output of the regeneration heater 40, the controller (not shown) compares the temperature of the regeneration air with a preset minimum value. Here, the minimum value is set in advance through experiments or the like in consideration of the regeneration efficiency of the dehumidification filter 30 . When the temperature of the reconditioning air is equal to or less than the minimum value, the reduction in output of the regeneration heater 40 is stopped. Therefore, when the temperature of the reconditioning air is lowered by reducing the output of the reconditioning heater 40, the temperature of the reconditioning air is prevented from falling excessively. That is, by controlling the temperature of the reconditioning air to be lowered only within the range equal to or greater than the minimum value, it is possible to prevent condensation from occurring and also to prevent deterioration in regeneration efficiency due to an excessive drop in temperature of the reconditioning air.

Meanwhile, the control unit (not shown) determines whether the difference between the temperature of the reconditioning air measured by the reconditioning air temperature sensor and the temperature of the exhaust air measured by the exhaust air temperature sensor exceeds the minimum temperature difference but is less than a preset temperature difference. judge When the difference between the temperature of the reconditioning air and the temperature of the exhaust air is less than the set temperature difference, the output of the regeneration heater 40 is increased to control the temperature of the reconditioning air to increase.

When the temperature of the regeneration air is higher than the temperature of the exhaust air by more than the set temperature difference, the regeneration filter 30 can be sufficiently regenerated. Therefore, when the difference between the temperature of the reconditioning air and the temperature of the exhaust air is less than the set temperature difference, it is determined that the regeneration efficiency of the regeneration filter 30 is low, and the output of the regeneration heater 40 is increased to increase the amount of the regeneration air. raise the temperature

In this embodiment, the set temperature difference is set to a constant value and is described as being about 5°C as an example. However, it is not limited thereto, and the set temperature difference may be set to a different value depending on the elapsed time of the regeneration operation. That is, when setting the value to a different value according to the elapsed time of the regeneration operation, it is preferable to set it to a first value at the beginning of the regeneration operation and to gradually increase the first value as the operation time elapses. In addition, it is of course possible that the set temperature difference is set within a predetermined range.

While increasing the output of the regeneration heater 40, the temperature of the regeneration air is compared with a preset maximum value. Here, the maximum value is described as being 60°C as an example. When the temperature of the regeneration air is equal to or higher than the maximum value, the increase in output of the regeneration heater 40 is stopped.

Therefore, when the temperature of the reconditioning air is increased by increasing the output of the regeneration heater 40, the temperature of the reconditioning air is prevented from being excessively increased. By controlling the temperature of the reconditioning air to rise only within a range less than the maximum value, overheating and burnout due to an excessive increase in the reconditioning air can be prevented.

Meanwhile, in the above embodiment, a plurality of sensors for measuring temperature and humidity are installed in the dehumidifier case 10, and the control unit (not shown) controls operation according to values detected by the plurality of sensors. explained with an example.

However, it is not limited to this, and a temperature sensor and a humidity sensor are provided outside the dehumidifier case 10, so that the control unit (not shown) controls the blower 20 according to the temperature and humidity of the storage space S. , It is also possible to control the operation of the regeneration heater 40 and the exhaust damper 60 to perform the regeneration operation or the dehumidification operation.

In addition, sensors of the small dehumidifier 100 are not installed, and the control unit (not shown) sets the dehumidification operation time and the regeneration operation time in advance, and the blower 20 and the regeneration heater are operated according to the set time. (40) It is of course possible to control the operation of the exhaust damper 60 to perform the regeneration operation or the dehumidification operation. At this time, the set time can be adjusted by the user.

Meanwhile, FIG. 6 is a view showing a small dehumidifier according to another embodiment of the present invention. FIG. 7 is a cross-sectional view seen in the direction B-B of FIG. 6;

6 and 7 , a small dehumidifier according to another embodiment of the present invention includes an exhaust duct 200 connected to an external exhaust port 12b formed in an exhaust chamber E of the dehumidifier case 10 and an exhaust adapter. Further including 210 is different from the above embodiment, and the rest of the configuration and operation are similar, so detailed descriptions of the similar configurations will be omitted below and the different points will be mainly described.

The exhaust duct 200 connects between the external exhaust port 12b and the door gap G of the door 1 to pass the exhaust air from the exhaust chamber E to the door gap G of the door 1. ) is a duct leading to

The exhaust adapter 210 is detachably coupled to the end of the exhaust duct 200 and extends vertically along the door gap G of the door 1 . That is, the exhaust adapter 210 has a shape of an expansion pipe having a gradually enlarged cross section.

As described above, in another embodiment of the present invention, when the external exhaust port 12b and the door gap G of the door 1 are not positioned oppositely, the exhaust duct 200 is connected to the external exhaust port 12b. ) may be additionally connected to guide the regeneration air discharged during the regeneration operation to the door gap G of the door 1. At this time, since the regeneration temperature of the dehumidifying filter is controlled to be 60° C. or less, thermal deformation and damage to the exhaust duct 200 or the like due to the temperature of the regeneration air can be prevented.

In addition, when the door gap G of the door 1 is narrower than the preset interval, by coupling the exhaust adapter 210, the exhaust area of the regenerated air during the regenerative operation is enlarged, making it easier to discharge the regenerated air. there is.

In the above embodiment, the exhaust duct 200 and the exhaust adapter 210 have been described as being coupled together, but the exhaust adapter 210 is directly connected to the external exhaust port 12b without being limited thereto. It is of course also possible.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

1: door 2: storage closet
10: dehumidifier case 11a: internal intake
12a: internal exhaust port 12b: external exhaust port
20: blower 30: dehumidifying filter
40: regeneration heater 60: exhaust damper
A: intake room D: dehumidification room
E: Exhaust chamber S: Storage space

Claims (9)

It is installed on at least one of an inner surface of a storage cabinet that can be opened and closed through a door and an inner surface of the door, dehumidifies the inside of the storage cabinet, and regenerates air generated during a regeneration operation through the door gap of the door or the opening of the storage cabinet. As a small dehumidifier that discharges to the outside of,
An intake chamber formed long in the direction of air flow and sucking in the air of the storage cabinet, an exhaust chamber discharging the air introduced into the intake chamber, and communicating between the intake chamber and the exhaust chamber to dehumidify the air introduced from the intake chamber. a dehumidifier case including a dehumidifying chamber formed to guide the dehumidifying chamber to the exhaust chamber, wherein the intake chamber, the dehumidifying chamber, and the exhaust chamber are sequentially partitioned in an air flow direction;
a blower for flowing air in the dehumidifier case;
a dehumidifying filter disposed in the dehumidifying chamber and including a dehumidifying agent that absorbs moisture in the air introduced from the intake chamber during a dehumidifying operation;
a regeneration heater which heats the air introduced from the intake chamber to flow into the dehumidification filter in order to regenerate the dehumidification filter during the regeneration operation;
And a control unit for controlling the operation of the blower and the regeneration heater,
The desiccant,
When the temperature of the ambient air is in the range of 10 ° C to 30 ° C and the equilibrium relative humidity of the air on the surface of the desiccant is 20% or less so that the moisture absorption amount increases during the dehumidifying operation, the moisture absorption capacity is 20 wt% or less, and the temperature of the ambient air is 10 ° C to 10 ° C. 30 ℃ range and when the equilibrium relative humidity of the air on the surface of the desiccant is 50% or more, the moisture absorption capacity is 40wt% or more,
The control unit,
During the regeneration operation, in order to prevent damage to the small dehumidifier itself or items around the small dehumidifier due to high-temperature regeneration air discharged from the exhaust chamber, the regeneration temperature of the dehumidification filter is set to 60° C. or lower. control the blower,
The desiccant,
The moisture absorption capacity is 20wt% or less when the temperature of the ambient air is in the range of 40 ° C to 60 ° C and the equilibrium relative humidity of the air on the surface of the desiccant is 20% or less so that the regeneration ability is improved by the regeneration operation,
The small size dehumidifier, wherein the equilibrium relative humidity of air on the surface of the desiccant is 20% or less before the dehumidifying operation starts and when the natural cooling of the desiccant ends after the regeneration operation ends. The method of claim 1,
An external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge high-temperature regeneration air generated during the regeneration operation to the outside through a door gap of the door;
The external exhaust port is a small dehumidifier mounted in communication with the door gap of the door. The method of claim 1,
an external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge high-temperature regeneration air generated during the regeneration operation to the outside through a door gap of the door;
The small dehumidifier further comprises an exhaust duct connecting the external exhaust port and the door gap of the door. The method of claim 3,
The small dehumidifier further includes an exhaust adapter coupled to an end of the exhaust duct and extended along a door gap of the door. The method of claim 1,
an external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge high-temperature regeneration air generated during the regeneration operation to the outside through a door gap of the door;
The small dehumidifier further includes an exhaust adapter coupled to the external exhaust port and extended along a door gap of the door. The method of claim 1,
and an intake port formed in the intake chamber of the dehumidifier case to suck air inside the cabinet into the intake compartment during the dehumidifying operation and the regeneration operation. According to claim 2 or claim 3,
an internal exhaust port formed in the exhaust chamber of the dehumidifier case to discharge air in the exhaust chamber into the storage cabinet;
A small dehumidifier further comprising an exhaust damper rotatably coupled to the exhaust chamber and selectively opening and closing the external exhaust vent, the internal exhaust vent, and the outlet of the dehumidifying chamber according to an operation mode including the dehumidifying operation and the regeneration operation. . The method of claim 7,
The control unit,
During the dehumidifying operation, the exhaust damper controls the internal exhaust port and the outlet of the dehumidifying chamber to be opened and the external exhaust port to be shielded;
Controlling the exhaust damper to block the internal exhaust port and open the external exhaust port and the outlet of the dehumidifying chamber during the regeneration operation;
When the regeneration operation ends, the exhaust damper controls the outlet of the dehumidification chamber to be shielded. It is installed on at least one of an inner surface of a storage cabinet that can be opened and closed through a door and an inner surface of the door, dehumidifies the inside of the storage cabinet, and regenerates air generated during a regeneration operation through the door gap of the door or the opening of the storage cabinet. As a small dehumidifier that discharges to the outside of,
An intake chamber for sucking in the air of the storage cabinet, an exhaust chamber for discharging the air introduced into the intake chamber, and a dehumidification chamber formed to communicate between the intake chamber and the exhaust chamber to dehumidify the air introduced from the intake chamber and guide it to the exhaust chamber. A dehumidifier case comprising a;
a blower for flowing air in the dehumidifier case;
a dehumidifying filter disposed in the dehumidifying chamber and including a dehumidifying agent that absorbs moisture in the air introduced from the intake chamber during a dehumidifying operation;
a regeneration heater which heats the air introduced from the intake chamber to flow into the dehumidification filter in order to regenerate the dehumidification filter during the regeneration operation;
an intake vent formed in the intake chamber of the dehumidifier case to suck air inside the cabinet into the intake chamber during the dehumidifying operation and the regeneration operation;
an external exhaust port formed in the exhaust chamber of the dehumidifier case to discharge high-temperature regeneration air generated during the regeneration operation to the outside through a door gap of the door;
an exhaust duct connecting the external exhaust port and the door gap of the door;
an exhaust adapter coupled to an end of the exhaust duct and extended along the door gap of the door;
an internal exhaust port formed in the exhaust chamber of the dehumidifier case to discharge air in the exhaust chamber into the storage cabinet;
an exhaust damper rotatably coupled to the exhaust chamber and selectively opening and closing the external exhaust vent, the internal exhaust vent, and the outlet of the dehumidifying chamber according to an operation mode including the dehumidification operation and the regeneration operation;
And a control unit for controlling the operation of the blower and the regeneration heater,
The desiccant,
When the temperature of the ambient air is in the range of 10 ° C to 30 ° C and the equilibrium relative humidity of the air on the surface of the desiccant is 20% or less so that the moisture absorption amount increases during the dehumidifying operation, the moisture absorption capacity is 20 wt% or less, and the temperature of the ambient air is 10 ° C to 10 ° C. 30 ℃ range and when the equilibrium relative humidity of the air on the surface of the desiccant is 50% or more, the moisture absorption capacity is 40wt% or more,
The control unit,
During the regeneration operation, in order to prevent damage to the small dehumidifier itself or items around the small dehumidifier due to high-temperature regeneration air discharged from the exhaust chamber, the regeneration temperature of the dehumidification filter is set to 60° C. or lower. control the blower,
The desiccant,
The moisture absorption capacity is 20wt% or less when the temperature of the ambient air is in the range of 40 ° C to 60 ° C and the equilibrium relative humidity of the air on the surface of the desiccant is 20% or less so that the regeneration ability is improved by the regeneration operation,
The small size dehumidifier, wherein the equilibrium relative humidity of air on the surface of the desiccant is 20% or less before the dehumidifying operation starts and when the natural cooling of the desiccant ends after the regeneration operation ends.

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