JP2001182966A - Dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifier subjected to operation control by detecting the water level in a water storage tank in which the fixing structure of a float unit is simplified and inspection and cleaning of the floating unit can be facilitated. SOLUTION: A drainage cover 11 is provided removably on the top face of a water storage tank 10 disposed under a water receiving plate 9 and a float unit 12 can be fixed easily removably to the rear surface of the cover 11 while being born movably up and down at the opposite ends thereof. When the cover is opened at the time of drainage, contamination of the float unit 12 can be visually confirmed directly. The float unit 12 can be taken out and cleaned easily and the structure for fixing the float unit 12 to the cover can be simplified as compared with a structure for fixing it to the water storage tank 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifier for detecting the water level of a water storage tank and controlling the operation thereof.

[0002]

2. Description of the Related Art Conventionally, this type of dehumidifier is shown in FIGS.
What was shown in was common.

Hereinafter, a water level detecting device for a water storage tank of the dehumidifier will be described with reference to the drawings.

As shown in FIG.
2 and a cooling unit 101b including a cooling unit 104, a condenser 105, and a compressor 106. An outlet 107 and an inlet 108 are provided on the surface of the main body 101. It has a water receiving plate 109 below the cooler 104 and the condenser 105,
A water storage tank 110 is detachably disposed below the water receiving plate 109.

[0005] A float cover 111a of the water storage tank 110 has a float unit 111 rotatably supported around a support shaft 111c. One of the float units 111 has a float 111a and the other has a magnet 111b. Provided. Reed switch 112 provided on main body 101
The contact opens and closes in response to the vertical movement of the magnet 111b, and controls the operation of the blowing unit 101a and the cooling / drying unit 101b.

[0006] In the above configuration, the air sucked into the main body 101 from the intake port 108 is cooled by the cooler 104, and the water vapor contained in the intake air becomes lower than the dew point temperature. , And flows down to the water storage tank 110, and the dehumidified air is blown into the room through the blowout port 107.

When the water level in the water storage tank 110 increases, the float 111a of the float unit 111 rises,
The permanent magnet 111b is lowered so as to turn off the reed switch 112, and the operation of the blower 101a and the cooler / dryer 101b is stopped. Also, when the water storage tank 110 is removed from the main body 101, the magnet 111b is separated from the reed switch 112, so that the reed switch 112 is turned off and the operation is stopped.

[0008]

In such a conventional dehumidifier, a structure for attaching a float unit to a water tank generally blow-molded becomes complicated, and
If the float unit or the support shaft becomes slimy, there is a problem that the reed switch will malfunction, and the structure of mounting the float unit to the water storage tank can be simplified, and the float unit can be easily inspected and cleaned. A dehumidifier that can work is required.

The present invention solves such a conventional problem, and provides a dehumidifier that simplifies the mounting structure of the float unit and allows easy inspection and cleaning of the float unit. The purpose is.

In addition, when the cover is provided with a float unit, if the degree of tightening of the cover screwed to the water storage tank changes, the orientation and height of the magnet with respect to the reed switch are shifted, thereby causing a malfunction. In addition, it is required that the lid screwed to the water storage tank can be fixed at a predetermined position, and that the reed switch operates accurately according to the water level of the water storage tank.

SUMMARY OF THE INVENTION The present invention is to solve such a conventional problem, and to provide a dehumidifier in which a lid screwed to a water storage tank can be fixed at a predetermined position so that a reed switch can operate accurately. It is an object.

[0012] Further, even if the lid provided with the float unit is set for screwing and fixing, if the water storage tank is installed in a state where the user does not tighten the lid to a predetermined position, the magnet and the reed switch must be connected to each other. There is a problem that the position is deviated, and the reed switch does not operate correctly. When the lid screwed into the water storage tank is insufficiently fastened, it is required that the lid cannot be installed on the main body to prevent malfunction.

The present invention solves such a conventional problem, and provides a dehumidifier capable of preventing installation of a water storage tank on a main body when a lid screwed into the water storage tank is in an incompletely mounted state. It is intended to be.

In the past, it was common practice to prevent leakage of water by interposing an oval gasket at the joint between the lid and the water storage tank. However, when tightening the lid to the water storage tank, a force must be applied. If it is tightened with a light force, it is difficult to adjust the tightening position to the specified tightening position. Have been.

The present invention solves such a conventional problem, and provides a dehumidifier provided with a packing of a lid which does not leak water even when the lid of the water storage tank is tightened with a light force and which can easily adjust the tightening position. It is intended to be.

In a normal use state, when the magnet approaches the reed switch, the contact of the reed switch is closed and the operable state is obtained. There is a problem that the detection function is impaired and water leakage is caused, and it is required to detect the water level of the water storage tank with higher reliability.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a dehumidifier capable of safely stopping the operation even if the first reed switch fails.

The set of magnets and reed switches is
When arranged close to each other, there is a problem that one of the magnets affects the other reed switch and the reed switch easily malfunctions, and it is required that the reed switch does not malfunction due to the influence of the adjacent magnet. .

The present invention solves such a conventional problem, and provides a dehumidifier in which a reed switch is not affected by an adjacent magnet even when two sets of magnets and a reed switch are provided. It is intended to be.

[0020]

In order to achieve the above object, a dehumidifier according to the present invention has a ventilation path provided in a main body, a blowing means and a dehumidifying means disposed in the ventilation path, and a dehumidifying means. A water storage tank for storing water droplets generated by the water storage tank, a lid detachably provided on the upper part of the water storage tank, a float unit that moves up and down according to the water level of the water storage tank, and a magnet provided in the float unit. It has a reed switch provided on the main body for controlling the blowing means and the dehumidifying means by turning on and off by the movement of a magnet, and the lid pivotally supports the float unit on a vertical plane.

According to the present invention, there is provided a dehumidifier capable of simplifying the mounting structure of the float unit and easily performing inspection and cleaning of the float unit.

Another means includes a lid screwed into the water storage tank, a projection projecting from the peripheral edge of the lid, and a receiving part provided in the water storage tank. The magnet of the float unit provided on the lid is arranged at a position close to the reed switch provided on the main body by abutting on the part and restricting the rotation of the lid on the way.

According to the present invention, the dehumidifier in which the reed switch operates accurately can be obtained by fixing the lid screwed to the water storage tank at a predetermined position.

Further, another means includes a positioning convex wall provided on the upper surface of the lid and a concave wall formed on the main body, and when the receiving portion of the water storage tank is in a screwing position where it comes into contact with the convex portion of the lid. The convex wall provided on the lid can be inserted into a concave wall formed on the main body.

According to the present invention, there is provided a dehumidifier capable of preventing installation of the water storage tank on the main body when the lid screwed into the water storage tank is in an incompletely mounted state.

Another means is to provide an elastic ring having a substantially rectangular cross section at the joint between the lid and the water storage tank.

According to the present invention, it is possible to obtain a dehumidifier provided with a packing of a lid which does not leak water even when the lid of the water storage tank is tightened with a light force and which can easily adjust the tightening position.

Further, other means include an air supply passage provided in the main body, an air supply device and a dehumidification device disposed in the air supply passage, a water storage tank for storing water droplets generated by the dehumidification device, and a water storage tank. A float unit that is pivotally supported so that one end rises according to the water level of the float unit and the other end falls; a first magnet provided at one end of the float unit; a float provided at the other end of the float unit; A first reed switch that is turned on and off by the first magnet and a second reed switch that is turned on and off by the second magnet
Is provided on the main body.

According to the present invention, a highly reliable dehumidifier that can safely stop the operation even if the reed switch breaks down is obtained.

Another means is that the SN poles of the first magnet and the second magnet are oriented at 90 ° to each other to prevent a magnetic field from acting on the second reed switch by the first magnet.

According to the present invention, a highly reliable dehumidifier in which a reed switch is not affected by an adjacent magnet can be obtained.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a ventilation path provided in a main body, a blowing means and a dehumidifying means disposed in the ventilation path, a water storage tank for storing water droplets generated by the dehumidifying means, and A lid detachably provided on the upper part of the water storage tank,
A float unit that moves up and down according to the water level of the water storage tank, a magnet provided in the float unit, and a reed switch provided in the main body that is turned on and off by the movement of the magnet to control the blowing unit and the dehumidifying unit. Having the lid, which rotatably supports the float unit on a vertical surface, and allows the dirty state of the float unit to be directly visually observed when the lid is opened when draining the water storage tank,
This has an effect that the float unit can be easily attached to the back surface of the lid as compared with the case where the float unit is installed inside the water storage tank.

Also, a lid screwed to the water storage tank, a projection protruding from the periphery of the lid, and a receiving part provided on the water storage tank, the receiving part being in contact with the projection of the lid. By restricting the rotation of the lid in the middle, the magnet of the float unit provided on the lid is arranged at a position accessible to the reed switch provided on the main body. The part descends while making a spiral movement, and stops at a predetermined position by contacting the receiving part of the water storage tank.When the water storage tank is stored at the predetermined position of the main body, the float unit attached to the lid moves with respect to the reed switch. There is no displacement and the reed switch has the effect of being able to operate accurately.

Further, it has a positioning convex wall provided on the upper surface of the lid and a concave wall formed on the main body, and when the receiving portion of the water storage tank is in a screwing position where it comes into contact with the convex portion of the lid, the lid is closed. The convex wall provided in the main body is configured to be insertable into a concave wall formed in the main body, and when the lid is not screwed to a predetermined position, the convex wall is opposed to the concave wall of the main body. It has an effect that the water storage tank cannot be installed in the main body because the orientation is such that it cannot be inserted.

Further, an elastic annular body having a substantially rectangular cross section is provided at a joint portion between the lid and the water storage tank. Even when tightened with a light force, the elastic annular body is deformed while being in close contact with the lid and the water storage tank. Therefore, there is no water leakage, and the repulsion is weaker than that of the O-ring.

Further, an air passage provided in the main body, an air blowing means and a dehumidifying means arranged in the air blowing path, a water storage tank for storing water droplets generated by the dehumidifying means, and a water tank corresponding to the water level of the water storage tank. A float unit that is pivotally supported so that one end is raised when the other end is raised, a first magnet provided at one end of the float unit, and a float and a second magnet provided at the other end of the float unit. The main body is provided with a first reed switch turned on and off by the first magnet and a second reed switch turned on and off by the second magnet. If it does not work, the water level of the water storage tank rises further and the second magnet floats together with the float, so the second reed switch operates and the operation can be stopped safely. It has the effect of.

Further, the direction of the SN pole of the first magnet and that of the second magnet are set to 90 ° with respect to each other to prevent a magnetic field from acting on the second reed switch by the first magnet. Even if the first magnet approaches the switch, the direction of the magnetic field generated by the magnet is different from the direction in which the reed switch responds, so that the reed switch can be prevented from operating erroneously without being affected by the magnet. Having.

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

[0039]

(Embodiment 1) As shown in FIG. 1, a main body 1 has a fan 2, a motor 3 and a compressor 4, and a cooler 6, a condenser 7 and a reed switch 8 in a ventilation passage 5. A water receiving plate 9 is provided below the cooler 6 and the condenser 7, and a water storage tank 10 is detachably mounted below the water receiving plate 9. A hole 1 for collecting dehumidified water is provided on the top surface of the water storage tank 10.
0a, and a drain lid 11 is provided detachably.
A float unit 12 is pivotally supported on the back surface of the lid 11, and both ends are vertically movable around a fulcrum provided substantially at the center of the float unit 12, so that it can be easily attached and detached. The float unit 12 has a float 1 at one end.
2a and a magnet 12b at the other end. The reed switch 8 installed on the main body 1 is located above the lid 11 of the water storage tank 10, and a float unit 12 provided on the back surface of the lid 11.
Is provided in the vicinity of the magnet 12b.

In the above configuration, the water vapor contained in the air sucked into the main body 1 by the fan 2 is condensed by the cooler 6 and becomes water droplets from the holes 10 a for collecting the dehumidified water on the top surface of the water storage tank 10. It flows down into the water storage tank 10. When the amount of water in the water storage tank 10 increases, the float 12a of the float unit 12 rises, the magnet 12b on the opposite side of the float 12a lowers, the magnetic force stops working, and the reed switch 8 is turned off to stop the operation. Also, when the water storage tank 10 is taken out, the lid 11 is separated from the reed switch 8, so that the reed switch 8 is also turned off.
F stops the operation.

When the water storage tank 10 is full, the operation is stopped.
Can be opened and drained. At this time, the dirt condition of the float unit attached to the lid can be directly viewed, and if dirty, the float unit can be easily cleaned by removing the float unit. Also, the structure for attaching and detaching the float unit to and from the lid can be simplified as compared with the case where the float unit is directly attached to the water storage tank.

Although a refrigerating cycle such as a compressor is used as the dehumidifying means in this embodiment, a desiccant type dehumidifying means for heating and regenerating the moisture absorbing member may be used.

(Embodiment 2) As shown in FIGS. 2 and 3, the blow-molded water storage tank 10 has an opening 10 for drainage.
A male screw portion 10b with which the lid 11 is screwed is formed integrally with the periphery of a, and a receiving portion 13 protrudes near the male screw portion 10b. The lid 11 has a convex portion 11a formed on a peripheral edge portion. When the lid 11 is tightened, the convex portion 11a comes into contact with the receiving portion 13 of the water storage tank 10, and the lid 11 can be fixed at a predetermined rotation position. .

In the above configuration, when the lid 11 is fastened to the male screw portion 10b of the water storage tank 10, the projection 11a does not hit the receiving portion 13 of the water storage tank 10 at the beginning of the tightening, and as the lid 11 is turned, The height is lowered, and finally the convex portion 11a and the receiving portion 13 of the water storage tank come into contact with each other.
Is fixed at a predetermined rotation position. When the water storage tank 10 is housed in the main body 1, the magnet 12b of the float unit 12 attached to the back surface of the lid 11 is disposed in the vicinity of the reed switch 8, and there is no displacement between the magnet 12b and the reed switch 8, so that the water level is surely maintained. Can be detected.

(Embodiment 3) As shown in FIG. 4, a positioning convex wall 11b is provided on the upper surface of the lid 11, and when the lid 11 is fixed at a predetermined rotation position with respect to the water storage tank 10, The main body 1 has a concave wall 14 into which the convex wall 11b can be inserted.
Is formed. Therefore, when the lid 11 is screwed into the water storage tank 10 in an incomplete state, the convex wall 1
The direction of 1b is different and cannot be inserted into the concave wall 14.

In the above configuration, the lid 11 is
When the cover 11 is mounted on the main body 1, the cover 11 is stopped at a predetermined position when the protrusion 11 a of the cover 11 is tightened until the protrusion 11 a contacts the receiving portion 13 of the water storage tank 10, and the convex wall 11 b provided on the upper surface of the cover 11 is also provided on the body 1. The water tank 10 can be inserted into the main body 1 by matching the position and the direction with respect to the wall 14, and the positions of the magnet 12b of the float unit 12 and the reed switch 8 do not shift.

On the other hand, if the lid 11 is not sufficiently fastened and screwed into the water storage tank 10 in an incomplete state,
The convex wall 11b on the upper surface of the main body 1 cannot be inserted because it hits the entrance of the concave wall 14 of the main body 1. Therefore, it is possible to prevent a malfunction caused by an incomplete tightening operation of the lid 11 beforehand.

(Embodiment 4) As shown in FIG. 5, an elastic annular body 15 having a substantially U-shaped cross section is inserted into the inner wall of the lid 11 and sealed so as not to leak water from the joint of the water storage tank 10. I have. The elastic annular body 15 is a material made of nitrile rubber used for a general sealing material, but has a substantially rectangular cross section. Therefore, when the elastic annular body 15 is compressed by being sandwiched between the joint portion of the lid 11 and the water storage tank 10, a light force is applied. And the upper and lower ends are always in close contact to increase the degree of sealing.

In the above structure, when the lid 11 is tightened, the elastic annular body 15 having a substantially U-shaped cross section is deformed only at the upper and lower ends and has a low repulsive force. Of the convex portion 11a and the receiving portion 13 are easy to match. In addition, the elastic annular body 15 having a substantially U-shaped cross section is deformed while being in close contact with the lid 11 and the water storage tank 10. Therefore, even if the elastic annular body 15 is tightened with a light force, a sufficient interference can be obtained. In addition, since the structure is such that water pressure is applied to the inside of the U-shape, sealing performance is improved by mechanical external pressure that collapses the U-shape in the vertical direction and water pressure from the inside, and water leakage can be prevented.

(Embodiment 5) As shown in FIG. 6, a hole 10a for collecting dehumidified water is provided on the top surface of the water storage tank 10, and a drainage lid 11 is provided detachably. And this lid 11
Is provided with a float unit 22 on the back surface thereof. A first magnet 22 provided at one end of the float unit 22
b, a float 22a and a second magnet 22c provided at the other end of the float unit 22, and the first reed switch 8 and the second magnet 22c which are turned on and off by the first magnet 22b. The main body 1 is provided with a second reed switch 17 which is turned on and off. The main body 1 has a microcomputer built-in determination device (not shown) and a display device (not shown). When the first reed switch 8 is turned off, the display device displays a full state and operates. To stop. When the first reed switch 8 fails and does not turn off, the second reed switch 17 is turned off.
The state becomes FF, and the display device (not shown) displays an abnormal state and stops the operation.

In the above configuration, first, when the dehumidifying operation is started and the water tank 10 has no water and the float 12a is sinking, the operation of the first reed switch 8 is continued with the contact point of the first reed switch 8 closed. Next, when the amount of water in the water storage tank 10 exceeds a certain amount, the float 22a of the float unit 22 rises, the contacts of the first reed switch 8 are opened, the operation of the main body 1 is stopped, and the display device (shown in FIG. ) Indicates a full state. Also, when the water storage tank 10 is removed from the main body 1, the first reed switch 8 does not receive the magnetic field of the magnet 22b, the contacts are opened, and the operation of the main body 1 is stopped.

However, when the contacts of the first reed switch 8 are welded, the main body 1 continues to operate, the amount of water in the water storage tank 10 increases steadily, and the float 22a floats up, and the second float provided on the float 22a is raised. The magnet 22c approaches the second reed switch 17 on the main body side, and the contact changes from open to closed. Upon receiving this signal, the determination device (not shown) determines that the state is abnormal, and the operation of the main body 1 can be safely stopped before water overflows from the water storage tank 10.

(Embodiment 6) As shown in FIG. 7, the first reed switch 8 is arranged in the same direction (parallel) so as to react with the first magnet 22b, and the second reed switch 8 is arranged on the second magnet 22c. They are arranged in the same direction (parallel) so that the reed switch 17 responds. Also, the first magnet 22b and the second magnet 22
By setting the directions of the SN poles of c to 90 °, the directions of the SN poles of the first reed switch 8 and the second reed switch 17 have a positional relationship of 90 ° to each other. Therefore, the first magnet 22b does not exert a magnetic field effect on the second reed switch 17, and the second magnet 22c does not exert a magnetic field effect on the first reed switch 8.

In the above configuration, each reed switch 8,
17 are close to each other, and even when the magnets 22b and 22c are close to each other, the first magnet 22b and the second magnet 2
2c shows that the directions of the SN poles are 90 ° to each other and the direction of the magnetic field is 90 °.
°, the influence of each other's magnetic field is small, and no malfunction of the reed switches 8 and 17 occurs.

When the water storage tank 10 is taken in and out of the main body 1, the first magnet 22b is close to the second reed switch 17, but the direction of the magnetic field is also different by 90 °. 17 does not malfunction and can be used safely.

[0056]

As is clear from the above embodiments, according to the present invention, since the float unit attached to the drainage lid can be easily attached and detached, the dirt condition of the float unit can be directly visually observed. If it is dirty, it can be easily cleaned by removing the float unit, and the dehumidifier has the effect that the float unit can be easily attached to and detached from the lid compared to the case where the float unit is directly attached to the water storage tank. Can be provided.

Further, since the lid can be fixed at a predetermined rotation position, the magnet of the float unit attached to the back of the lid is arranged at a position near the reed switch when the water storage tank is housed in the main body, And a dehumidifier having an effect of being able to reliably detect the water level without displacement of the reed switch.

When the cover is tightened until the convex portion of the lid comes into contact with the receiving portion of the water storage tank, the lid stops at a predetermined rotation position. Therefore, the convex wall provided on the upper surface of the lid is positioned differently from the concave wall of the main body. It is possible to provide a dehumidifier having an effect that the water tank can be inserted into the main body in the same direction, there is no displacement between the magnet of the float unit and the reed switch, and the water level can be reliably detected.

Further, since the cross section of the elastic annular body is formed in a substantially rectangular shape, the lid can be tightened with a light force when tightening the cover. An excellent dehumidifier can be provided.

Further, since the float unit is provided with the second magnet and the second reed switch is provided on the main body, even if the contact of the first reed switch is welded and fails, the second reed switch can be reliably mounted. And a dehumidifier that can safely stop the operation of the main body before water overflows from the water storage tank.

Further, since the directions of the SN poles of the first magnet and the second magnet are set at 90 ° to each other, when the reed switch is close to the other magnet, the magnetic field of the magnet is applied to this reed switch. Is different from 90 °, and there is little effect of the mutual magnetic field, and there can be provided a dehumidifier having an effect that the reed switch does not malfunction and can be used safely.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a dehumidifier according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of a lid and a float unit according to the second embodiment.

FIG. 3 is a perspective view of the water storage tank.

FIG. 4 is a perspective view showing a relationship between a water storage tank and a main body according to the third embodiment.

FIG. 5 is a sectional view of a water storage tank according to the fourth embodiment.

FIG. 6 is a sectional view of a water storage tank according to the fifth embodiment.

FIG. 7 is an essential part perspective view showing the relationship between the float unit and the reed switch according to the sixth embodiment.

FIG. 8 is a sectional view of a conventional dehumidifier.

FIG. 9 is a cross-sectional view showing the installation of a water storage tank of another conventional dehumidifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Fan (blowing means) 3 Motor (blowing means) 4 Compressor (dehumidifying means) 5 Ventilation path 6 Cooler (dehumidifying means) 7 Condenser (dehumidifying means) 8 Reed switch, 1st reed switch 10 Water tank DESCRIPTION OF SYMBOLS 11 Cover 11a Convex part 11b Convex wall 12 Float unit 12a Float 12b Magnet 13 Receiving part 14 Concave wall 15 Elastic ring 17 Second reed switch 22 Float unit 22a Float 22b First magnet 22c Second magnet

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeo Ito 6-2-61 Imafukunishi, Joto-ku, Osaka-shi, Osaka F-term in Matsushita Seiko Co., Ltd. 3L050 BE04

Claims (6)

[Claims] 1. A ventilation path provided in a main body, a ventilation means and a dehumidification means disposed in the ventilation path, a water storage tank for storing water droplets generated by the dehumidification means, and a detachable upper part of the water storage tank. A lid provided freely, a float unit that moves up and down according to the water level of the water storage tank, a magnet provided in the float unit, and a magnet that is turned on and off by the movement of the magnet to control the blowing means and the dehumidifying means. A dehumidifier having a reed switch provided on a main body, wherein the lid rotatably supports the float unit on a vertical plane. 2. A lid which is screwed into the water storage tank, a projection protruding from a peripheral portion of the lid, and a receiving part provided in the water storage tank, the receiving part being in contact with the projection of the lid. 2. The dehumidifier according to claim 1, wherein the rotation of the lid is regulated on the way, so that the magnet of the float unit provided on the lid is arranged at a position accessible to a reed switch provided on the main body. 3. A positioning convex wall provided on an upper surface of the lid,
It has a concave wall formed in the main body, and when the receiving part of the water storage tank is in a screwing position where it contacts the convex part of the lid, the convex wall provided in the lid can be inserted into the concave wall formed in the main body. The dehumidifier according to claim 2. 4. The dehumidifier according to claim 2, wherein an elastic annular body having a substantially rectangular cross section is provided at a joint between the lid and the water storage tank. 5. A ventilation path provided in the main body, a ventilation means and a dehumidification means disposed in the ventilation path, a water storage tank for storing water droplets generated by the dehumidification means, and a water level corresponding to the water level of the water storage tank. A float unit that is pivotally supported so that one end is raised when the other end is raised, a first magnet provided at one end of the float unit, and a float and a second magnet provided at the other end of the float unit. A dehumidifier having a main body provided with a first reed switch turned on and off by the first magnet and a second reed switch turned on and off by the second magnet. 6. The dehumidifier according to claim 5, wherein the directions of the SN poles of the first magnet and the second magnet are set to 90 ° with respect to each other to prevent a magnetic field from acting on the second reed switch by the first magnet. .