CN212431148U - Dehumidifier - Google Patents

Abstract

The utility model provides a dehumidifier, it includes: water collector, float subassembly and hall sensor. The water receiving disc is used for receiving the drainage of the dehumidifier; the floater component comprises a guide piece and a floater, the guide piece is fixedly arranged on the water pan and used for guiding the floater, and the top end of the floater is provided with a magnet; the Hall sensor is fixedly arranged at the position, opposite to the floater, of the upper part of the water receiving tray; the float floats upwards along the guide piece under the action of water, and when the float floats to a specified water level, the Hall sensor is conducted under the action of a magnetic field so as to detect the water level in the water receiving tray. Based on the utility model provides a scheme, water level detection device simple structure and float action are reliably difficult for becoming invalid.

Description

Dehumidifier

Technical Field

The utility model relates to a dehumidification field especially relates to a dehumidifier.

Background

In the prior art, a dehumidifier generally adopts the working principle that a fan pumps moist air into the dehumidifier, then a heat exchanger of the dehumidifier condenses moisture in the air into water drops and discharges the water drops to a water receiving tray. In order to prevent the water in the water receiving tray from overflowing, the water level of the water receiving tray needs to be detected.

At present, a water pan of a dehumidifier generally adopts a mechanical water level detection device, which comprises a floating plate arranged in the water pan, wherein the floating plate can push a control rod to press a switch to switch off after rising to a specified water level under the action of water, and then a high water level signal is transmitted to a controller of the dehumidifier.

In the prior art, a plurality of parts such as a floating plate, a control rod and a switch are needed, and the water level detection can be realized only by mutual linkage, and if any link goes wrong, the water level detection is disabled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an use water level detection device reliable in action on the dehumidifier.

The utility model discloses a further purpose is to solve the complicated problem of water level detection device's of dehumidifier mechanical structure.

Particularly, the utility model provides a dehumidifier, it includes:

the water receiving tray is used for receiving the drainage of the dehumidifier;

the floater assembly comprises a guide piece and a floater, the guide piece is fixedly arranged on the water pan and used for guiding the floater, and a magnet is arranged at the top end of the floater;

the Hall sensor is fixedly arranged at the position, opposite to the floater, of the upper part of the water pan;

the floater floats upwards along the guide piece under the action of water, and when the floater floats to a specified water level, the Hall sensor is conducted under the action of a magnetic field to detect the water level in the water pan.

Optionally, the guide member is a float guide post, and the float is sleeved on the float guide post.

Optionally, the inside of the float guide post is hollow, and at least one drainage groove is arranged on the float guide post and used for draining water inside the float guide post.

Optionally, the float is comprised of a hollow shell and a foam filling.

Optionally, the water collector includes first drain tank, the setting of float guide post is in the diapire of first drain tank, the float guide post with the junction of the diapire of first drain tank is provided with at least one and prevents inhaling the muscle, prevent inhaling the muscle certainly the diapire of first drain tank is upwards protruding, is used for preventing the float is adsorbed on the diapire of first drain tank.

Optionally, a drain hole is arranged in the first drain tank;

the dehumidifier also comprises a water pump, the water pump comprises a water inlet pipe, and the water inlet pipe is arranged in the drain hole;

and after the Hall sensor is switched on, the water pump is started to discharge the water in the first water discharge tank.

Optionally, the dehumidifier further comprises

And the second drainage groove is arranged in the water receiving tray, shares a part of side wall with the first drainage groove, a first overflow port is arranged on the part of side wall, the lowest point of the first overflow port is higher than the specified water level, and water in the first drainage groove flows to the second drainage groove under the condition that the water level of the first drainage groove is higher than the lowest point of the first overflow port.

Optionally, the dehumidifier further comprises:

and the water tank is arranged below the second drainage groove, communicated with the second drainage groove and used for collecting drainage of the second drainage groove.

Optionally, the dehumidifier further comprises:

and the third water drainage groove is arranged in the water receiving tray, the third water drainage groove and the second water drainage groove share part of side walls, a second overflow port is arranged on the part of side walls shared by the third water drainage groove and the second water drainage groove, the lowest point of the second overflow port is lower than the lowest point of the first overflow port, and under the condition that the water level of the second water drainage groove is higher than the lowest point of the second overflow port, the water of the second water drainage groove flows to the third water drainage groove.

Optionally, a waterproof layer is arranged outside the magnet.

The utility model discloses in, water level detection device includes float assembly and hall sensor, and float assembly includes guide and float, and the float upwards floats along the guide under the effect of water, and when the float come-up to the regulation water level, hall sensor receives the magnetic field effect to switch on to detect the water level of water collector. The utility model discloses water level detection device simple structure.

Further, the floater floats upwards along the guide piece under the action of water, so that the Hall sensor is conducted under the action of a magnetic field to detect the water level of the water pan. The float acts reliably and is not easy to lose efficacy.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 shows a schematic view of the overall structure of a dehumidifier according to an embodiment of the present invention;

fig. 2 shows a schematic structural view of a water pan of a dehumidifier according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating an overall structure of a dehumidifier according to an embodiment of the present invention at another angle;

FIG. 4 illustrates a cross-sectional view of the dehumidifier of FIG. 1 taken along section line A-A;

FIG. 5 illustrates a schematic structural view of a guide of a dehumidifier according to a preferred embodiment of the present invention;

fig. 6 shows a schematic structural diagram of a controller of a dehumidifier according to an embodiment of the present invention;

fig. 7 is a schematic flow chart showing a drainage control method applied to a dehumidifier according to an embodiment of the present invention;

fig. 8 is a schematic flow chart illustrating a drainage control method applied to a dehumidifier according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It should be noted that the technical features of the embodiments and the alternative embodiments of the present invention can be combined with each other without conflict.

Fig. 1 shows a schematic view of the overall structure of a dehumidifier according to an embodiment of the present invention. Fig. 2 shows a schematic structural diagram of a water pan of a dehumidifier according to an embodiment of the present invention. Fig. 3 shows an overall structural diagram of the dehumidifier according to the embodiment of the present invention at another angle. Referring to fig. 1 to 3, the dehumidifier 100 may include a water collection assembly 170 for collecting water in an environment where the dehumidifier is located, a water pan 110 disposed below the water collection assembly 170 for receiving water drained by the water collection assembly 170, a water tank 150 disposed below the water pan 110, a water pump 140, and a first water level detection device 120.

The water pan 110 may include a first water drainage groove 111, the water collection assembly 170 may include an air duct cover plate 171, a fan, and the like, and water collected by the water collection assembly 170 first flows into the first water drainage groove 111. A drain hole 1111 is formed inside the first drain tank 111, and the water pump 140 includes a water inlet pipe 141, and the water inlet pipe 141 is formed in the drain hole 1111, so that the water in the first drain tank 111 can be drained to the outside through the water pump 140.

Referring to fig. 1 to 3, a second drainage groove 112 may be further disposed on the water pan 110, and a drainage hole 1121 is disposed in the second drainage groove 112, and the drainage hole 1121 is communicated with the water tank 150. The second drain tank 112 shares a part of the side wall with the first drain tank 111, and a part of the side wall is provided with a first overflow port 1122 which is recessed downward, so that when the water level of the first drain tank 111 is higher than the lowest point of the first overflow port 1122, the water in the first drain tank 111 flows to the second drain tank 112. The second drain tank 112 is provided so that the water of the first drain tank 111 can flow into the water tank 150 when there occurs a problem in which the drain hole 1111 is closed or the water inlet pipe 141 of the water pump 140 is blocked or the water pump 140 has a low drain speed and the environmental humidity is high.

Referring to fig. 1-3, a third drainage channel 113 may be further disposed on the water-receiving tray 110, and a drainage hole 1131 is disposed on the third drainage channel 113 of the third drainage channel 113, and the drainage hole 1131 is communicated with the water tank 150. The third water discharge groove 113 and the second water discharge groove 112 share a part of the side wall, a second overflow port 1132 which is recessed downward is arranged on the part of the side wall shared by the third water discharge groove 113 and the second water discharge groove 112, the lowest point of the second overflow port 1132 is lower than the lowest point of the first overflow port 1122, and under the condition that the water level of the second water discharge groove 112 is higher than the lowest point of the second overflow port 1132, the water in the second water discharge groove 112 flows to the third water discharge groove 113 and further flows to the water tank 150. The third drain groove 113 is provided so that water of the second drain groove 112 can flow into the water tank 150 when there occurs a problem that the drain hole 1121 is clogged or the water inflow rate of the second drain groove 112 is excessively large. The risk resistance of the dehumidifier 100 in the dehumidification process is improved.

In some embodiments of the present invention, the drain holes 1121 and 1131 may also be connected with a water pipe, thereby draining the water of the dehumidifier 100 to the outside.

FIG. 4 illustrates a cross-sectional view of the dehumidifier of FIG. 1 taken along section line A-A; fig. 5 is a schematic structural view illustrating a guide of a dehumidifier according to a preferred embodiment of the present invention. Referring to fig. 2, 4-5, a first water level detecting means 120 is provided in the first drain tank 111 for detecting a water level of the first drain tank 111. The first water level detecting device 120 may include a float assembly 121 and a hall sensor 122. The float assembly 121 includes a guide 1211 and a float 1214. A guide 1211 is fixedly provided on the bottom wall of the first drain tank 111 for guiding the float 1214. The top end of the float 1214 may be provided with a magnet 130. The hall sensor 122 is disposed on the upper portion of the water collector 110 opposite to the float 1214, and may be disposed on the air duct cover plate 171. The float 1214 is floated upward along the guide 1211 by the water, and after the float 1214 is floated up to a predetermined water level, the hall sensor 122 is turned on by the magnetic field to detect the water level of the first drain tank 111.

The utility model provides a first water level detection device 120 simple structure, and float 1214 goes up along guide 1211 under the effect of water, makes hall sensor 122 switch on in order to detect the water level by the magnetic field effect, and float 1214 moves reliably, is difficult for becoming invalid.

In some embodiments of the present invention, the float 1214 may be comprised of a hollow shell 1215 and a foam filler 1216, which is simple and inexpensive.

Referring to fig. 4-5, in some embodiments of the invention, the guide 1211 can be a float guide post over which the float 1214 is fitted. Under the buoyancy of water, the float can float upwards along the float guide post.

Specifically, referring to fig. 5, the interior of the float guide column is hollow and may have at least one longitudinal, elongated bleed slot 1213 disposed thereon, which may be one or more than one. When there are plural, four are preferable. When the drain groove 1213 is plural, the plural drain grooves 1213 may be uniformly distributed on the float guide for discharging water inside the float guide. Thereby, it is possible to avoid the influence of the float accuracy due to the water inflow inside the float guide column 1211.

It should be noted that the number and shape of the drainage grooves 1213 may be determined according to actual conditions, and the description of the above embodiments of the present invention is not limited thereto.

Referring to fig. 5, at least one elongated anti-suction rib 1212 may be provided at a connection between the float guide post and the bottom wall of the first drainage groove 111, and one or more than one anti-suction ribs may be provided. When there are a plurality, four are preferable. When preventing inhaling muscle 1212 is a plurality of, a plurality ofly prevent inhaling muscle 1212 can evenly distributed at the junction of the diapire of float guide post and first drain tank 111, prevent inhaling muscle 1212 upwards protruding from the diapire of first drain tank 111, prevent inhaling the setting of muscle 1212 and can make the entering air between the diapire of float and first drain tank 111 to avoid the float to be adsorbed on the diapire of first drain tank 111.

It should be noted that the number and shape of the anti-suction ribs 1212 may be determined according to actual situations, and the description of the above embodiments of the present invention does not specifically limit the present invention.

In addition, the exterior of the magnet 130 may be provided with a waterproof layer that may protect the magnet 130 from failure of the magnet 130, thereby further ensuring float accuracy.

Fig. 6 shows a schematic structural diagram of a controller 160 of a dehumidifier according to an embodiment of the present invention. Referring to fig. 6, the controller 160 may include a memory 161 and a processor 162, wherein a computer program 1611 is stored in the memory 161, and the computer program 1611 is used to implement the method for controlling the drainage of the dehumidifier according to the above embodiment of the present invention when being executed by the processor 162.

Fig. 7 is a schematic flow chart illustrating a drainage control method applied to a dehumidifier according to an embodiment of the present invention. Referring to fig. 7, the control method for the dehumidifier 100 according to the present invention executed by the controller 160 of any of the above embodiments may include the following steps:

s102: acquiring a water level signal detected by the first water level detecting device 120;

s104: judging whether the water level of the first drain tank 111 is higher than a first prescribed water level from the water level signal;

s106: if the water level of the first drain tank 111 is higher than the first prescribed water level, the water pump 140 is started;

s108: and if the water level is higher than the second specified water level after the water pump 140 is started for the first preset time period, controlling the water pump to be closed for the second preset time period, counting the times of closing the water pump because the water level is higher than the second specified water level, and determining that the water pump 140 breaks down when the counted times reach the preset times.

In fact, the first reason why the water level of the water pump 140 is still higher than the second predetermined water level after the water pump is started for the first predetermined time is that the ambient humidity is high and the water pump flow rate is low, which may be caused by the low voltage of the water pump 140 or the high lift of the water pump or the water pump is slightly blocked. A second possibility is that the water pump 140 fails.

In being applied to the utility model provides an among the drainage control method of dehumidifier, start long back and the water level is higher than the second when prescribing a water level at water pump 140 and close the water pump and count the number of times that the water pump closed because of the water level is higher than second prescribed water level, if the count does not reach preset number of times then return to step S1. In the circulation process which does not reach the preset times, if the water drainage is slow due to low water pump voltage, the problem can be solved under the normal dehumidification of the dehumidifier. However, if the water pump is stopped due to a high lift or a blocked water pump, the humidity of the environment will be reduced during normal operation of the dehumidifier 100, and such a problem will be solved. In addition, when the water pump is repeatedly turned on, for example, the water pump is blocked by gravel, the gravel may be washed away by a plurality of times of washing. The dehumidifier has strong anti-interference capability. When the counting reaches the preset times, the water level is still not lowered, and only the water pump is in failure, so that the determined conclusion is more reliable.

Step S106, after the water pump 140 is started, firstly, the water pump is controlled to be started for a third preset time, and after the third preset time, whether the water level of the first drainage tank is higher than the second specified water level is determined, wherein the third preset time is shorter than the first preset time. The water pump is turned on for a third preset period of time in order to increase the amount of water discharged.

After the water pump 140 is started for a third preset time, if the water level is higher than the second specified water level, periodically judging whether the water level of the first water drainage tank is higher than the second specified water level until the first preset time is reached, or stopping the water pump when the water level of the first water drainage tank is lower than the second specified water level, and resetting the times of stopping the water pump because the water level is higher than the second specified water level.

The periodic determination may specifically be a determination at intervals of a shorter time, for example, 5s, the third predetermined time period is a longer time period than the period time period, for example, 40s, and if the third predetermined time period is 40s, the first time period may be 70 s. Whether the water level of the first drainage tank is higher than the second specified water level or not is periodically judged, so that the water pump can be timely turned off when the water level is lower than the second specified water level, and the long idle pumping time caused by the long starting time of the water pump is avoided.

Further, in order to further guarantee the reliability of the conclusion that the water pump that is about confirming broke down, the embodiment of the utility model discloses a number of times zero clearing that the water pump was closed because of the water level is higher than second regulation water level when the water level of first drainage tank 111 is less than second regulation water level will be carried out the water pump. The water pump is ensured to be continuous when the times of closing the water pump due to the fact that the water level is higher than the second specified water level reach the preset times.

When the water level in the first drain tank 111 does not fall all the time, the excess water in the first drain tank 111 flows to the second drain tank 112 via the first overflow port, and then flows to the water tank 150.

A second water level detection device is arranged in the water tank 150, and when the water level signal detected by the second water level detection device judges that the water tank 150 is full, the controller can output a water full alarm signal to prompt a user that the water tank is full, so that the water in the water tank 150 is prevented from overflowing.

In addition, when the controller 160 determines that the water pump is out of order, a failure alarm signal is output to prompt the user that the water pump is out of order.

In some embodiments of the present invention, the water pump 140 may discharge the water in the first drainage tank 111 to the waste water collecting device for recycling.

Fig. 8 is a schematic flow chart illustrating another drainage control method applied to the dehumidifier according to the embodiment of the present invention. Referring to fig. 8, the drain control method for a dehumidifier according to the present invention, which is performed by the controller 160 according to any of the above embodiments, may include the steps of:

s1: it is determined whether the water level L of the first drain tank 111 is higher than the first predetermined water level L1.

S2: if the water level of the first drain tank 111 is higher than the first predetermined water level, the water pump 140 is controlled to be turned on for a third predetermined time period T3.

Wherein, controlling the water pump 140 to be turned on for the third preset time period T3 may increase the water discharge amount of the water pump 140.

S3: after a third preset time period T3, determining whether the water level L of the first drain tank 111 is higher than a second prescribed water level L2; wherein the second prescribed water level L2 is lower than the first prescribed water level L1.

S4: if the water level L of the first drain tank 111 is lower than the second predetermined water level L2, the water pump 140 is turned off, the number N of times the water pump 140 is turned off due to the water level being higher than the second predetermined water level L2 is cleared, and the process returns to step S1;

the number of times N is reset to zero, so that the number of times that the water pump 140 is shut down due to the fact that the water level is higher than the second specified water level L2 is continuous when the preset number of times M is reached, and the conclusion that the water pump 140 breaks down is more accurate.

S5: if the water level of the first drain tank 111 is higher than the second predetermined water level L2, controlling the water pump 140 to be turned on for a fourth preset time period T4, and proceeding to step S6; the fourth preset duration T4 is far shorter than the third preset duration T3, for example, the third preset duration is 40s, and the fourth preset duration is 5 s.

Due to the factors of high ambient humidity, low water discharge of the water pump, and the like, the water level L of the first water discharge tank 111 is still higher than the second prescribed water level L2 after the water pump 140 is turned on for the third preset time period T3, and therefore the water pump 140 is controlled to be turned on for the fourth preset time period L4.

S6: determining whether the water level L of the first drain tank 111 is higher than a second predetermined water level L2;

s7: if the water level L of the first drain tank 111 is lower than the second predetermined water level L2, the water pump 140 is turned off, the number N of times the water pump 140 is turned off due to the water level being higher than the second predetermined water level L2 is cleared, and the process returns to step S1;

clearing the number of times N may ensure that the number of times the water pump 140 is turned off due to the water level being higher than the second prescribed water level L2 reaches the preset number of times M continuously, thereby making the conclusion about the occurrence of the malfunction of the water pump 140 more accurate.

S8: if the water level L of the first drain tank 111 is higher than the second predetermined water level L2, determining whether the starting time T of the water pump 140 reaches a first preset time T1; in the case where the third preset time period is 40s and the fourth preset time period is 5s, the first preset time period may be 70 s.

S9: if the water pump 140 is started for a time period T not reaching the first preset time period T1, returning to the step S4;

by periodically determining the water level of the first drain tank 111 in this way, the water pump 140 can be turned off in time when the water level L of the first drain tank 111 is lower than the second predetermined water level L2, thereby preventing the water pump 140 from causing a long idle pumping time.

S10: if the water pump 140 is turned on for the first preset time period T1, the water pump 140 is turned off for a second preset time period T2 and the number of times the water pump 140 is turned off because the water level L is higher than the second predetermined water level L2 is counted, and the process proceeds to step S11.

S11: and judging whether the count N reaches the preset number M.

S12: if the count N does not reach the preset number M, the process returns to step S1.

In the circulation process which does not reach the preset times, if the water pump 140 is low in voltage, the drainage is slow, the water level is not removed, and the problem that the water pump 100 can not drain water normally is solved. If the water pump is high in lift or the water pump is blocked, the water is drained slowly and the water level is not kept, and the environmental humidity is reduced under the normal work of the dehumidifier, the problem can be solved. In addition, when the water pump is repeatedly turned on, for example, the water pump is blocked by gravel, the gravel may be washed away by a plurality of times of washing. The dehumidifier has strong anti-interference capability.

S13: and if the count N reaches the preset number M, determining that the water pump 140 has a fault.

The counted number of times reaching the preset number indicates that the water level of the first drain tank 111 is higher than the second specified water level for a long time in the operating state of the dehumidifier 100, so that the reason that the water level does not go due to factors such as small flow of the water pump 140, environmental humidity and the like can be eliminated, and the conclusion about the determined fault of the water pump 140 is more accurate.

The utility model provides a dehumidifier, the water level detection device that dehumidifier 100 adopted include float assembly 121 and hall sensor 122, and float assembly 121 includes guide 1211 and float 1214, and float 1214 upwards floats along guide 1211 under the effect of water, and when float 1214 goes up the regulation water level, hall sensor 122 switched on by the magnetic field effect to detect the water level of water collector. The water level detection device has simple structure and reliable float action and is not easy to lose efficacy. In addition, the joint of the float guide column and the first drainage groove 111 is provided with an anti-suction rib 1212, so that the float can be prevented from being adsorbed on the bottom wall of the first drainage groove 111, and the float precision is ensured. In addition, at least one drain groove 1213 is provided on the float guide for draining water from the interior of the float guide. Thereby, it is possible to avoid the influence of the float accuracy due to the water inflow inside the float guide column 1211.

It will be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made in accordance with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A dehumidifier, comprising:

the water receiving tray is used for receiving the drainage of the dehumidifier;

the floater assembly comprises a guide piece and a floater, the guide piece is fixedly arranged on the water pan and used for guiding the floater, and a magnet is arranged at the top end of the floater;

the Hall sensor is fixedly arranged at the position, opposite to the floater, of the upper part of the water pan;

the floater floats upwards along the guide piece under the action of water, and when the floater floats to a specified water level, the Hall sensor is conducted under the action of a magnetic field to detect the water level in the water pan.

2. The dehumidifier of claim 1,

the guide piece is a float guide post, and the float is sleeved on the float guide post.

3. The dehumidifier of claim 2,

the inside cavity of float guide post, be provided with at least one sluicing groove on the float guide post for with the inside water discharge of float guide post.

4. The dehumidifier of claim 2,

the float consists of a hollow shell and a foam filling.

5. The dehumidifier of claim 2,

the water collector includes first drain tank, the float guide post sets up the diapire of first drain tank, the float guide post with the junction of the diapire of first drain tank is provided with at least one and prevents inhaling the muscle, prevent inhaling the muscle certainly the diapire of first drain tank is upwards protruding, is used for preventing the float is adsorbed on the diapire of first drain tank.

6. The dehumidifier of claim 5,

a drain hole is formed in the first drain tank;

the dehumidifier also comprises a water pump, the water pump comprises a water inlet pipe, and the water inlet pipe is arranged in the drain hole;

and after the Hall sensor is switched on, the water pump is started to discharge the water in the first water discharge tank.

7. The dehumidifier of claim 6, further comprising

And the second drainage groove is arranged in the water receiving tray, shares a part of side wall with the first drainage groove, a first overflow port is arranged on the part of side wall, the lowest point of the first overflow port is higher than the specified water level, and water in the first drainage groove flows to the second drainage groove under the condition that the water level of the first drainage groove is higher than the lowest point of the first overflow port.

8. The dehumidifier of claim 7, further comprising:

and the water tank is arranged below the second drainage groove, communicated with the second drainage groove and used for collecting drainage of the second drainage groove.

9. The dehumidifier of claim 8, further comprising:

and the third water drainage groove is arranged in the water receiving tray, the third water drainage groove and the second water drainage groove share part of side walls, a second overflow port is arranged on the part of side walls shared by the third water drainage groove and the second water drainage groove, the lowest point of the second overflow port is lower than the lowest point of the first overflow port, and under the condition that the water level of the second water drainage groove is higher than the lowest point of the second overflow port, the water of the second water drainage groove flows to the third water drainage groove.

10. The dehumidifier of claim 1,

a waterproof layer is arranged outside the magnet.

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