ES2372664T3 - DEHUMIFIER - Google Patents

Abstract

A dehumidifier, including: a main body (1), including a dehumidification duct in which interior air is aspirated and the aspirated interior air is dehumidified and a reconditioning duct in which reconditioning air circulates; a dehumidification rotor (30) configured to dehumidify the indoor air aspirated and reconditioned by the reconditioning air; a rotor holder (31) configured to rotatably support the dehumidification rotor; and a rotor frame (40) configured to fix the rotor holder and include a first opening unit (41) through which the indoor air and the reconditioning air passing through the dehumidification rotor pass, and a second opening unit (42) through which the reconditioning air passes; characterized in that bypass holes (43) have been formed in the rotor frame such that the indoor air that has not passed through the dehumidification rotor is shunted through it.

Description

Dehumidifier

Field of the Invention

The present invention relates to a dehumidifier and, more specifically, to an air conditioner including a rotor holder capable of easily connecting a dehumidification rotor and a rotor frame capable of fixing the rotor holder and dehumidifier elements.

Background of the invention

In general, dehumidifiers can be classified according to their method of operation in dehumidifiers that use a cooling cycle and dehumidifiers that use a desiccant rotor.

Dehumidifiers that use a cooling cycle are problematic because a compressor must be arranged, and the compressor generates noise and takes up space. Consequently, dehumidifiers that use a desiccant rotor are more common today.

The desiccant rotor has the property of absorbing moisture from the air and dehumidifies while transmitting indoor air through it. The desiccant that has absorbed moisture is reconditioned using hot air.

The air used to recondition the desiccant rotor has high temperature and high humidity and is discharged outside. Here a problem arises because the dehumidifier must be placed outside a building or, if placed inside, an additional exhaust duct must be provided.

In the case where the hot moist air that the desiccant has been reconditioned is circulated inside the dehumidifier, there is no need to provide the additional exhaust duct. Another advantage is that the dehumidifier can be placed in the position desired by the user.

In order to circulate hot moist air, moisture must be removed. Accordingly, a condensation heat exchanger for removing moisture from hot humid air is generally placed in a space between an inner air intake hole and the desiccant rotor. That is, the humidity is reduced based on the principle that the humidity within the hot humid air is condensed by thermal exchange between the hot humid air and air at normal temperature.

Meanwhile, the desiccant is divided into a dehumidification zone in which moisture is absorbed while the indoor air passes through the dehumidification zone, and a reconditioning zone from which moisture evaporates while the reconditioning air passes through from the reconditioning zone. The respective zones are changed alternately when the desiccant is rotated, thus the moisture is absorbed and evaporated. Consequently, a structure capable of rotationally supporting the desiccant within the main body is needed.

WO2006 / 135171 describes a dehumidifier that has high dehumidification efficiency, low noise and vibration, and has the characteristics of the preamble of claim 1.

Summary of the Invention

Therefore, it would be desirable to provide a dehumidifier in which a rotor holder and a rotor frame are placed inside a main body, thereby rotationally supporting a desiccant and also facilitating the desiccant replacement.

It would also be desirable to provide a dehumidifier in which the elements within the main body can be densely arranged by fixing the elements within the main body to the rotor frame to which the rotor holder is fixed.

It would also be desirable to provide a dehumidifier in which bypass holes are formed in the rotor frame, thereby being able to improve the indoor air flow introduced to the main body and to improve the dehumidification performance of the dehumidifier.

A dehumidifier according to the present invention includes a main body, including a dehumidification duct in which interior air is sucked in and the sucked interior air is dehumidified, and a reconditioning duct in which reconditioning air circulates, a dehumidification rotor configured to dehumidify the indoor air sucked and reconditioned by the reconditioning air, a rotor holder configured to rotatably support the dehumidification rotor, and a rotor frame configured to fix the rotor holder and to include a first opening unit through the which pass the indoor air and the reconditioning air that passes through the dehumidification rotor, and a second opening unit through which the reconditioning air passes.

Bypass holes have been formed in the rotor frame so that the indoor air that has not passed through the dehumidification rotor is shunted through it. The exemplary dehumidifier may also include a control box to accommodate a control unit to control the dehumidifier. A control box fixing unit on which the control box is mounted can be placed on the rotor frame.

The dehumidifier may also include a power cable having one end connected to the control box and the other end connected to the outside through a rear face of the main body. Fixing units for fixing the power cable to the rotor frame can be formed in the rotor frame. A power cable slot can also be formed to connect the power cable to the control box in the control box fixing unit.

The exemplary dehumidifier may further include a reconditioning air heating element coupled to a rear face of the first opening unit and configured to heat the reconditioning air passed through the first opening unit, and a reconditioning fan coupled to a rear face of the second opening unit and configured to aspirate the reconditioning air passed through the second opening unit. The dehumidifier may also include a condensation heat exchanger placed in front of the dehumidification rotor and configured to condense the reconditioning air that the dehumidification rotor has reconditioned and to include a discharge unit for discharging the reconditioning air outside, after forming the condensation, in the condenser heat exchanger.

The download unit can communicate with the second opening unit. The dehumidifier may also include an exhaust duct through which the discharge unit and the second opening unit communicate with each other. The discharge unit can be formed on a lower side of the condensation heat exchanger, and the second opening unit is formed on an upper side of the rotor holder.

The dehumidifier explained above has the following advantages.

First: the user can replace the desiccant by disassembling the rotor holder from the rotor frame. Accordingly, the user can easily replace the desiccant.

Second: a variety of elements within the main body are connected to the rotor frame. Accordingly, an additional element is not required to fix the elements within the main body in appropriate positions, and the elements within the main body can be densely placed.

Third: the bypass holes are formed in the rotor frame, thereby making the flow of indoor air flowing inside the main body smooth. Accordingly, the dehumidification performance can be improved, and the noise generated by the indoor air flow can be reduced.

Fourth: several electrical wires and a power cable formed within the main body can be attached to the rotor frame. Accordingly, the electric wires and the power cable can be protected against moisture inside the main body, and the electric wires inside the main body can be densely arranged.

Brief description of the drawings

The foregoing and other objects, features and advantages of the present invention will be more apparent from the following description of some exemplary embodiments taken in conjunction with the accompanying drawings, in which:

Figure 1 is a perspective view of a dehumidifier according to an exemplary embodiment of the present invention.

Figure 2 is an exploded perspective view showing main elements of the dehumidifier shown in Figure 1.

Figure 3 is an exploded perspective view of a dehumidification rotor, a rotor holder, a rotor frame, a refurbishment fan, and a reconditioning air heating element according to the present exemplary embodiment.

And Figure 4 is a front view of the rotor frame according to the present exemplary embodiment.

Detailed description of exemplary embodiments

Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings so that they can be easily implemented by those skilled in the art. In describing exemplary embodiments of the present invention, the same reference numbers are used in all drawings to refer to the same parts, and their redundant description is omitted.

Figure 1 is a perspective view of a dehumidifier according to an exemplary embodiment of the present invention, and Figure 2 is an exploded perspective view depicting main elements of the dehumidifier depicted in Figure 1.

The general structure of the dehumidifier according to the exemplary embodiment of the present invention will be described with reference to Figures 1 and 2.

The dehumidifier according to the exemplary embodiment of the present invention is configured to aspirate indoor air, adsorb indoor air humidity, and discharge dehumidified indoor air. To this end, a main body 1 includes air intake units for sucking air and an air discharge unit for dehumidifying and discharging the sucked indoor air. In the present exemplary embodiment, the air intake units are placed on the left and right sides of the main body 1 and on the air discharge unit.

A front panel 2, the front surface of a hub 10, left and right panels 4 and 5, an upper panel 3, a base 8, a rear upper panel 7, and a lower rear panel 6 constitute the external aspect of the main body.

The front panel 2 forms the external appearance of the upper front portion of the main body. A groove in which a filter can be slidably mounted is formed on the rear surface of the front panel 2. The filter for purifying the indoor air passed through the air intake units is also placed on the front panel 2.

The left and right panels 4 and 5 form the side faces of the main body and include handles so that the user can manually move the dehumidifier. A hole has been formed in a position where the bucket 10 to be described is placed later, which belongs to the bottom of the side panels 4 and 5, so that an additional hose for discharging water, housed in the bucket 10, at exterior can be attached to the hole.

The upper panel 3 forms the upper part of the main body. An air discharge unit, and a display unit and a handling unit to allow the user to check the operation status of the dehumidifier and introduce the operation of the dehumidifier are placed in the upper panel 3.

The rear panels 6 and 7 form the rear part of the main body. In particular, the lower rear panel 6 is detachably coupled to the main body. A power cable fixing unit (not shown) for fixing a power cable, which supplies electrical power to the main body, is placed inside the lower rear panel 6.

The base 8 forms the lower part of the main body. A wheel assembly is placed inside the base 8. The wheel assembly includes a wheel to facilitate the movement of the dehumidifier and a wheel support to which the wheel is rotatably coupled. The upper surface of the base 8 is open, and a drain fan 20 has been placed on the upper surface of the base 8. The hub 10 is slidably and detachably coupled to the base 8.

A condensation heat exchanger 100, a rotor frame 40, a fan 9, etc., are placed on the drain fan 20. One or more holes through which the condensed water, which has condensed in the condensation heat exchanger 100 and it is discharged from it, it is discharged to the bucket 10 under the drain fan 20, they are formed in the drain fan 20.

The bucket 10 forms a space to collect the condensed water introduced by the drain fan 20. In the case where the bucket 10 is slidably coupled to the base 8 and the condensed water is collected in the bucket 10, the user disassembles the bucket 10 from base 8 and empty it out.

A fan 9, a dehumidification rotor 30, a refurbishment fan 50, a reconditioning air heating element 60, and the condensation heat exchanger 100 are placed inside the main body.

The fan 9 draws indoor air through the air intake units and discharges the indoor air to the air discharge unit through the main body. A fan motor and a fan coupled to the rotation axis of the fan motor are included inside the fan 9. An outlet grid can be placed in the output unit.

The dehumidification rotor 30 serves to adsorb moisture in the indoor air sucked by the fan 9 and to recycle the adsorbed moisture at low temperature. The dehumidification rotor 30 is placed between the fan 9 and the condensation heat exchanger 100.

The dehumidification rotor 30 includes a desiccant 35 and a desiccant wheel 33 to which the desiccant 35 is attached. Desiccant 35 adsorbs moisture into the indoor air while the indoor air passes through the dehumidification rotor 30 and recycles the adsorbed moisture. Desiccant wheel 33 surrounds the circumference of desiccant 35.

The desiccant 35 is generally configured to have a circular plate and is surrounded by the desiccant wheel 33. In the desiccant 35 a fixing hole has been formed to fix the desiccant 35 to the center of the dehumidification rotor 30.

Desiccant 35 can have various shapes and materials. Desiccant 35 according to the present exemplary embodiment may have a shape in the cardboard and corrugated paper, made of ceramic fiber, are alternately rolled in a cylindrical shape. Desiccant 35 can also be made of meso-silica (SiO2), such as nanocarbon balls (NCBs). NCBs have excellent hygroscopic properties due to well developed pores and surface area, and are capable of being reconditioned at a low temperature of approximately 60 ° C or less.

NCBs have a spherical carbon structure of 200 nm to 500 nm in diameter that includes a hollow spherical central unit and a mesoporous carbon cell unit. NCBs include fine pores, each of which has a diameter of 2 nm to 50 nm. Typical activated carbon pores have a wide surface area (BET), a wide mesoporous zone, and are not occluded.

The desiccant 35 is divided into an area to which the moisture inside the indoor air is absorbed while the indoor air passes through the desiccant 35 (hereinafter referred to as a 'dehumidification zone'), and an area from which the moisture is evaporates to the reconditioning air while the reconditioning air passes through the desiccant 35 (hereinafter referred to as a 'reconditioning zone'). The respective zones alternate by rotation of the desiccant 35 so that the moisture is absorbed and evaporated. The reconditioning zone is generally fan-shaped.

The desiccant wheel 33 includes an edge unit configured so as to have a ring shape and to surround the circumference of the desiccant 35, a fixing unit configured to fix the desiccant 35, and a connection unit configured to connect the unit of edge and fixing unit and formed radially between the edge unit and the fixing unit.

Figure 3 is an exploded perspective view of the dehumidification rotor, a rotor holder, the rotor frame, the reconditioning fan, and the reconditioning air heating element according to the present exemplary embodiment, and Figure 4 is a front view of the rotor frame according to the present exemplary embodiment.

With reference to figures 3 and 4, the rotor holder 31 for rotationally supporting the dehumidification rotor 30 and the rotor frame 40 on which the rotor holder 31 is mounted, are placed inside the main body.

A reconditioning air distribution element 90 to be described later is coupled to the front surface of the rotor holder 31. The rear surface of the reconditioning air distribution element 90 is open. An intake unit through which the reconditioning air enters the reconditioning air distribution element 90, is formed on the rear surface of the reconditioning air distribution element 90 while the rear surface of the distribution element of reconditioning air 90 is coupled to rotor holder 31.

The rotor frame 40 functions as a type of barrier to divide the interior of the main body into a rear-side space where the fan 20 is placed, and a front-side space where the condensation heat exchanger 100 is placed.

A first opening unit 41 through which the indoor air and the reconditioning air passed through the dehumidification rotor 30 pass, and a second opening unit 42 through which the reconditioning air passes, are formed in the rotor frame 40. In more detail, the indoor air passed through the first opening unit 41 passes through the dehumidification zone of the desiccant 35 and then passes through the first opening unit 41. The air from Reconditioning passed through the first opening unit 41 passes through the reconditioning air heating element 60 to be described later and subsequently passes sequentially through the first opening unit 41 and the desiccant reconditioning zone 35. The reconditioning air passed through the exhaust duct 80 passes through the second opening unit 42 and subsequently enters the vented reconditioning r

fifty.

Bypass holes 43 have been drilled in the rotor frame 40. Consequently, a portion of indoor air that has condensed the reconditioning air, while passing through the condensation heat exchanger 100, does not pass through the dehumidification rotor 30, but passes through the bypass holes 43. Accordingly, the amount of indoor air, which is larger than the amount of indoor air that can be dehumidified by the dehumidification rotor 30, can be aspirated and used to condense the air of reconditioning within the condensation heat exchanger 100, thereby increasing the efficiency of condensation. In addition, a part of the indoor air passed through the condensation heat exchanger 100 is shunted through the bypass holes 43, thereby being able to smooth the flow of the indoor air and reduce the noise generated by the flow of the indoor air

A control box fixing unit 44, in which a control box 22 is mounted to control the dehumidifier, is formed above the rotor frame 40. Since the control box 22 is placed on the rotor frame 40, The electronic components inside the control box 22 can be protected against moisture inside the main body 1. The control box 22 for controlling the dehumidifier is placed on the rotor frame 40, so that the handling unit and the unit of display placed on the top panel 3 can be easily connected to the control box 22.

The second opening unit 42 is preferably formed in the upper portion of the rotor frame 40, as will be described later. Accordingly, in the case where the second opening unit 42 is formed in part of the upper portion of the rotor frame 40 and the control box 22 is placed in the remaining portions of the rotor frame 40, the space within the main body 1 It can be used efficiently.

Meanwhile, the dehumidifier is equipped with a power cable (not shown) to transfer power from the external source. The power cable connects the control box 22 to the power source outside the main body 1. The power cable is generally connected to the external power source through the rear side of the main body 1 due to a feeling of beauty.

In the present exemplary embodiment, the control box 22 is placed on the rotor frame 40, and fixing units 45 for fixing the power cable to the rotor frame 40 are formed in the rotor frame 40. Each of the units of fixing 45 has a clip shape and closely adheres and fixes the power cable to the rotor frame 40. In the present exemplary embodiment, the fixing units 45 are formed on the front surface of the rotor frame 40.

A groove 47 has been formed on one side of the lower portion of the rotor frame 40. The groove 47 leads to the power cable connected to the rear side of the main body 1 so that the power cable can be fixed to the fixing units 45 formed on the front surface of the rotor frame 40. Accordingly, when the elements are mounted on the dehumidifier, the power cable can be easily conducted from the rear side of the main body 1 to the front surface of the rotor frame 40 and then can be fixed to fixing units 45.

The control box 22 is placed on the control box fixing unit 44. Thus, in order to connect the power cable, fixed to the fixing units 45, to the control box 22, a power cable slot 46 in the control box fixing unit 44. Accordingly, the power cable is connected to the external power source through the rear side of the main body 1 via the control box 22, the slot of power cable 46, fixing units 45, and groove 47. Accordingly, the elements do not interfere with each other because the power cable is effectively installed within the main body.

An electrical cable slot 48 has also been formed in the rotor frame 40. An electrical cable connecting the fan 9 and the reconditioning fan 50, placed on the rear side of the control box 22 and the rotor frame 40, it passes through the electrical cable slot 48. Accordingly, the electrical cable connecting the fan 9 and the reconditioning fan 50 does not interfere with other elements.

The reconditioning fan 50 is coupled to the rear face of the second opening unit 42. The reconditioning fan 50 assigns circulating power to the reconditioning air so that the reconditioning air can flow through the main body while circulating through of the main body. That is, the reconditioning fan 50 sucks the air passed through the second opening unit 42 and discharges the aspirated air to the reconditioning air heating element 60.

The reconditioning air heating element 60 is coupled to the rear face of an area through which the reconditioning air of the first opening unit 41 passes. The reconditioning air heating element 60 heats the reconditioning air discharged from the reconditioning fan 90 and supplies the high temperature reconditioning air to the dehumidifying rotor 30. The reconditioning air heating element 60 includes heaters 63, a first heater cover 65, and a second heater cover 61. The first heater cover 65 covers the heaters 63 and communicates with the reconditioning fan 50. The second heater cover 61 is placed between the first heater cover 65 and the dehumidification rotor 30 and is coupled to the first heater cover 65 .

The second heater cover 61 functions as a type of air guide to prevent the air, heated by the heaters 63, from escaping into the environment between the heaters 63 and the dehumidifying rotor 30 so that the heated air moves towards the rotor dehumidification 30. In other words, the reconditioning air heated by the reconditioning air heating element 60 passes through the first opening unit 41 of the rotor frame 40 and subsequently enters the reconditioning zone of the desiccant 35.

As described above, the rotor frame 40 serves to fix the rotor holder 31, the control box 22, the reconditioning air heating element 60, and the reconditioning fan

50. Accordingly, the elements can be fixed compactly within the main body 1.

The heated reconditioning air while passing through the reconditioning heater 60 passes sequentially through the first opening unit 41 and the desiccant reconditioning zone 35 and subsequently entering the reconditioning air distribution element 90.

The reconditioning air distribution element 90 is positioned between the condensation heat exchanger 100 and the desiccant reconditioning zone 35. Accordingly, the reconditioning air discharged from the desiccant reconditioning zone 35 enters the air distribution element of reconditioning 90. The reconditioning air distribution element 90 distributes the reconditioning air and supplies the reconditioned air distributed to the condensation heat exchanger 100. In other words, the reconditioning air distribution element 90 serves to distribute the reconditioning air , which has passed through the desiccant reconditioning zone 35, to a plurality of heat exchange plates to be described later.

The condensation heat exchanger 100 performs the thermal exchange of the reconditioning air, passed through the reconditioning air distribution element 90, with the indoor air. In other words, the condensation heat exchanger 100 condenses the reconditioning air in which moisture has been absorbed, while the reconditioning air passes through the reconditioning zone of the dehumidification rotor 30, using the indoor air and discharges the air of reconditioning of which moisture has been removed, to the reconditioning fan 50 through the exhaust duct 80. Condensation water enters the bucket 10 through the drain fan 20.

In the present exemplary embodiment, the condensation heat exchanger 100 can maximize the area in which the reconditioning air and the indoor air are subjected to heat exchange because it includes a plurality of heat exchange plates. The condensation heat exchanger 100 is placed at the front of the dehumidification rotor 30 and is configured to condense the reconditioning air that has been reconditioned by the dehumidification rotor 30. A discharge unit 110 has also been formed in the condensation heat exchanger 100 for discharge the reconditioning air after condensation.

The discharge unit 110 is configured to communicate with the second opening unit 42. The reconditioning air condensed by the condensation heat exchanger 100 is aspirated by the reconditioning fan 50 by the second opening unit 42 and subsequently heated by the element of air conditioning overhaul 60.

Alternatively, the discharge unit 110 may be formed in the lower part of the condensation heat exchanger 100, and the second opening unit 42 may be formed in the upper portion of the rotor frame

40. In this case, there is an advantage that the humidity, included in the reconditioning air, can fall while the condensed reconditioning air flows from the bottom to the top.

In the present exemplary embodiment, the dehumidifier further includes the exhaust duct 80 that connects the discharge unit 110, formed on the lower side of the condensation heat exchanger 100, and the second opening unit 42 formed on the upper side of the rotor frame. 40. In other words, the reconditioning air from which moisture has been removed, while passing through the condensation heat exchanger 100, is again aspirated by the reconditioning fan 50 through the exhaust duct 80, formed to communicate with the unit discharge 110, and the second opening unit 42.

Next, a process of condensation of the reconditioning air, a process of dehumidification of the indoor air, and a process of discharge of the condensed water and moisture into the main body 1 in the dehumidifier of the previous construction according to the present invention are described.

First, the reconditioning air circulates through a reconditioning conduit when the reconditioning fan 50 rotates. That is, the reconditioning air that passes through the reconditioning fan 50 is heated in the reconditioning air heating element 60 causing its temperature to rise. The heated reconditioning air is introduced into the dehumidification rotor 30 by the first opening unit 41 of the rotor frame 40. The reconditioning hot air reconditions the desiccant reconditioning zone 44. The reconditioning air is subsequently introduced into the heat exchanger of condensation 100 by means of the reconditioning air distribution element 90.

The reconditioning air introduced into the condensation heat exchanger 100 undergoes thermal exchange with the indoor air as it flows up and down through a plurality of heat exchange plates. During this heat exchange process, moisture is condensed into the reconditioning air. The condensed reconditioning air passes sequentially through the discharge unit 110, the exhaust duct 80, and the second opening unit 42 of the rotor frame 40 and subsequently re-enters the reconditioning fan 50. That is, the reconditioning air circulates inside the main body according to the previous cycle.

Meanwhile, the indoor air is sucked through the air intake units of the main body and undergoes thermal exchange with the reconditioning air flowing through the air reconditioning duct while passing through an indoor air duct of the condensation heat exchanger 100. The humidity of the indoor air that passes through the condensation heat exchanger 100 is absorbed by the desiccant 44 while the indoor air passes through the dehumidification zone of the desiccant

44. Dehumidified indoor air is subsequently discharged into a room through the first opening unit 41 of the rotor frame 40 and the impeller fan 9.

Meanwhile, the condensed water in the condensation heat exchanger 100 is collected in the bucket 10 by the drain fan 20. The user disassembles the bucket 10 from the base 8 and empties it out.

Although the present invention has been shown and described in connection with its exemplary embodiments, those skilled in the art will appreciate that the present invention can be changed and modified in various ways without departing from the scope of the present invention defined in the following claims.

Claims (9)

1. A dehumidifier, including: a main body (1), including a dehumidification duct in which interior air is aspirated and the aspirated interior air is dehumidified and a reconditioning duct in which reconditioning air circulates; a dehumidification rotor (30) configured to dehumidify the indoor air aspirated and reconditioned by the reconditioning air; a rotor holder (31) configured to rotatably support the dehumidification rotor; Y a rotor frame (40) configured to fix the rotor holder and include a first opening unit (41) through which the indoor air and the reconditioning air passing through the dehumidification rotor pass, and a second opening unit (42) through which the reconditioning air passes; characterized in that bypass holes (43) have been formed in the rotor frame such that the indoor air that has not passed through the dehumidification rotor is shunted through it.

2.

 The dehumidifier of claim 1, further including a control box to accommodate a control unit for controlling the dehumidifier,

where a control box fixing unit in which the control box is mounted, is placed on the rotor frame.

3.

 The dehumidifier of claim 2, further comprising a power cable having one end connected to the control box and the other end connected to the outside through a rear face of the main body, and

where fixing units for fixing the power cable to the rotor frame are formed in the rotor frame.

Four.

 The dehumidifier of claim 2, further comprising a power cable having one end connected to the control box and the other end connected to the outside through a rear face of the main body, and

where a power cable slot for connecting the power cable to the control box is formed in the control box fixing unit.

5.

 The dehumidifier of any preceding claim, further including a reconditioning air heating element coupled to a rear face of the first opening unit and configured to heat the reconditioning air passed through the first opening unit.

6.

The dehumidifier of any preceding claim, further including a reconditioning fan coupled to a rear face of the second opening unit and configured to aspirate the reconditioning air passed through the second opening unit.

7.

 The dehumidifier of any preceding claim, further including a condensation heat exchanger placed in front of the dehumidification rotor and configured to condense the reconditioning air that the dehumidification rotor has reconditioned, a discharge unit having been formed in the condensation heat exchanger to discharge outside reconditioning air after condensation,

where the discharge unit communicates with the second opening unit.

8.

 The dehumidifier of claim 7, further including an exhaust duct through which the discharge unit and the second opening unit communicate with each other,

9.

 The dehumidifier of claim 7, wherein:

where the discharge unit has been formed on a lower side of the condensation heat exchanger, and the second opening unit has been formed on an upper side of the rotor holder. the condensation heat exchanger includes a plurality of heat exchange plates, and The dehumidifier also includes a reconditioning air distribution element positioned between the dehumidification rotor and the condensation heat exchanger and configured to distribute and introduce the reconditioning air that the dehumidification rotor has reconditioned to the plurality of heat exchange plates.