JP2010234253A - Dehumidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure further safety for a heating means regarding a dehumidifier. <P>SOLUTION: The dehumidifier includes a heat pump 4 provided inside a body case 3 provided with an air intake 1 and an exhaust port 2. The heat pump 4 is formed by a compressor 5, a radiator 6, an expansion means 7 and a heat sink 8, is provided with a blowing means 9 for blowing air sucked into the body case 3 from the air intake 1 successively through the radiator 6 and the heat sink 8 to the exhaust port 2, wherein a freely turnable dehumidifying rotor 10 is provided between the radiator 6 and the heat sink 8. The dehumidifying rotor 10 includes a moisture discharge part 11 and a moisture absorption part 13, the moisture absorption part 13 is provided in an air path between the heat sink 8 and the exhaust port 2, and the moisture discharge part 11 is provided in an air path between the radiator 6 and the heat sink 8. A heating means 12 is provided in an air path between the radiator 6 and the moisture discharge part 11, and a nichrome heater 18 and a PTC heater 17 are electrically connected in series for the heating means 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dehumidifier using a heat pump.

  The configuration of this type of conventional dehumidifier is as follows.

  That is, a main body case having an intake port and an exhaust port, and a heat pump provided in the main body case, the heat pump includes a compressor, a radiator, an expansion unit, and a heat absorber sequentially provided downstream of the compressor. And is provided with a blowing means for blowing air sucked into the main body case from the intake port to the exhaust port through the heat sink and the heat absorber in turn (for example, a similar preceding) The document is described in Patent Document 1 below).

  In recent years, a dehumidifying apparatus with higher dehumidifying capacity has been demanded, and a dehumidifying apparatus having a higher dehumidifying capacity has been developed by combining a dehumidifying rotor with a heat pump.

That is, in the air passage of the blowing means, a dehumidification rotor is provided between the radiator and the heat absorber, and a heating means is provided between the dehumidification rotor and the heat radiator. Moisture that could not be recovered by dehumidification is absorbed by this dehumidification rotor. Next, the air heated by the radiator and the heating means is blown to the dehumidification rotor, the moisture is released to the air, and the dehumidification and dehumidification is performed by blowing the air again to the heat absorber to increase the dehumidifying capacity. (For example, a prior document similar to this is described in Patent Document 2 below).
Japanese Patent Laid-Open No. 06-331167 JP 2006-102578 A

  The problem in the conventional example is that further safety for the dehumidifying device has to be improved.

  That is, in the conventional product, when dust or the like is clogged in the intake port and the air blown to the heating means is reduced, the temperature of the heating means rises to an abnormal state, which is not preferable for safety.

  Therefore, a thermal fuse is provided in the heating means. With this thermal fuse, when the heating means is in a high temperature abnormal state, the safety of the heating means is ensured by cutting off the power supply to the heating means.

  However, when the temperature fuse does not operate at a predetermined temperature, the heating means is in a high temperature abnormal state, and improvement of safety against an operation abnormality of a safety device such as a temperature fuse has been a problem.

  Then, this invention aims at the further improvement of the safety | security with respect to a heating means.

  In order to achieve this object, the present invention includes a main body case having an intake port and an exhaust port, and a heat pump provided in the main body case. The heat pump is sequentially provided downstream of the compressor and the compressor. And a blower means for blowing the air sucked into the main body case from the intake port into the exhaust port through the heat sink and the heat absorber in turn. A dehumidification rotor is provided between the radiator and the heat absorber to freely rotate. The dehumidification rotor includes a moisture releasing portion and a moisture absorbing portion. The moisture absorbing portion is a wind between the heat absorber and the exhaust port. Provided in a path, the moisture release part is provided in an air path between the radiator and the heat absorber, and a heating means is provided in the air path between the radiator and the moisture release part. Means are Nichrome heater and PTC heater Are those formed by electrically connected in series, thereby, it is to achieve the intended purpose.

  As described above, the present invention includes a main body case having an intake port and an exhaust port, and a heat pump provided in the main body case. The heat pump includes a compressor and a heat radiator sequentially provided downstream of the compressor, The radiator is formed by an expansion unit and a heat absorber, and is provided with a blower unit that blows air sucked into the main body case from the intake port to the exhaust port through the heat sink and the heat absorber. A dehumidification rotor that can rotate freely between the heat absorber and the dehumidification rotor comprises a moisture release portion and a moisture absorption portion, and the moisture absorption portion is provided in an air passage between the heat absorber and the exhaust port, The moisture releasing part is provided in an air path between the radiator and the heat absorber, and a heating means is provided in an air path between the radiator and the moisture releasing part, and the heating means is a nichrome heater. And PTC heater are electrically connected in series It is those formed by Rukoto, in which it is possible to ensure further safety against the temperature rise of the heating means.

  In other words, the heating means provided in the air path between the radiator and the moisture releasing part is formed by electrically connecting the nichrome heater and the PTC heater in series, so that dust or the like is clogged in the intake port and the heating means is provided. When the air flow decreases, the PTC heater first rises to a certain temperature. Therefore, as a characteristic of the PTC heater, the electrical resistance of the PTC heater also increases, the heat generation amount decreases, and the temperature of the PTC heater is controlled to be constant. The In addition, since the nichrome heater is electrically connected in series with the PTC heater, if the electrical resistance of the PTC heater increases, the voltage drop at the PTC heater increases, and accordingly, the supply voltage to the nichrome heater decreases. The calorific value of the nichrome heater is reduced, and the temperature rise of the nichrome heater is suppressed. That is, when the air flow to the heating means decreases, the nichrome heater and the PTC heater are electrically connected in series, so the PTC heater can control the temperature of the PTC heater itself at a constant level and the temperature of the nichrome heater increases. Can also be suppressed.

  According to these results, the safety of the heating means can be further improved even if the amount of air passing through the dehumidification rotor is reduced by closing the opening of the dehumidification rotor.

  Hereinafter, the present embodiment will be described with reference to the accompanying drawings.

(Embodiment 1)
As shown in FIG. 1, the dehumidifying device of this embodiment includes a main body case 3 having an intake port 1 and an exhaust port 2, and a heat pump 4 in the main body case 3. The heat pump 4 is formed by a compressor 5, a radiator 6, an expansion means 7, and a heat absorber 8.

  The air sucked into the main body case 3 from the air inlet 1 is blown to the air outlet 2 through the radiator 6 and the heat absorber 8 by the blower 9.

  A dehumidification rotor 10 is rotatably provided between the radiator 6 and the heat absorber 8. The dehumidifying rotor 10 includes a moisture releasing portion 11 and a moisture absorbing portion 13. The moisture absorbing portion 13 is provided in an air path between the heat absorber 8 and the exhaust port 2, and the moisture releasing portion 11 includes the radiator 6 and the heat absorber 8. It is provided in the air path between. A heating unit 12 is provided between the radiator 6 and the moisture release unit 11.

  The dehumidifying operation in the above configuration will be described. The air sucked into the main body case 3 from the air inlet 1 by the air blowing means 9 is heated by the heat radiator 12 and further heated by the heating means 12 to become air having a high temperature and a low relative humidity, and the moisture releasing portion of the dehumidifying rotor 10 11 is blown.

  The air blown to the moisture release section 11 takes in the moisture of the moisture release section 11 and is sent to the heat absorber 8 in a high humidity state. The heat absorber 8 is condensed to dehumidify and reaches the moisture absorbing portion 13. Therefore, the moisture releasing portion 11 of the dehumidifying rotor 10 in a dry state is rotated by the driving means 16 to become the moisture absorbing portion 13, and the moisture not dehumidified by the heat absorber 8 is absorbed by the moisture absorbing portion 13 and dehumidified.

  A feature of this embodiment is the configuration of the heating means 12. As shown in FIGS. 2 and 3, the heating means 12 includes a nichrome heater 18 and a PTC heater 17. The nichrome heater 18 and the PTC heater 17 are electrically connected in series.

  The nichrome heater 18 has a structure in which a nichrome wire is processed into a spiral shape and fixed to a fixed frame 19, and the nichrome heater unit 20 including the nichrome heater 18 has a substantially fan shape.

  As shown in FIG. 1, the PCT heater 17 has a plurality of flat PTC elements 21 arranged in the center, and serpentine fins 22 are provided so as to sandwich the PTC elements 21. The PCT heater 17 energizes the fins 22 on both sides of the PTC element 21 so that the central PTC element 21 generates heat. However, the PTC element 21 repeats heat generation when the PTC element 21 is deprived of heat by blowing air to the fin 22, but the PTC element 21 is not deprived of heat generation when there is no ventilation to the fin 22. Is suppressed. Further, the PTC heater unit 23 composed of a plurality of PCT heaters 17 is substantially rectangular. The dimension of one side of the substantially square shape of the PTC heater unit 23 is substantially the same as the radial dimension of the substantially fan shape of the nichrome heater unit 20.

  As described above, the heating means 12 provided in the air path between the radiator 6 and the moisture release unit 11 is configured by electrically connecting the nichrome heater 18 and the plurality of PTC heaters 17 in series. When dust or the like is clogged in the mouth and the air blown to the heating means 12 is reduced, the temperature of the PTC heater 17 first increases. Therefore, as a characteristic of the PTC heater 17, the electrical resistance of the PTC heater 17 also increases, the amount of heat generation decreases, and the temperature of the PTC heater 17 is controlled to be constant. Further, since the nichrome heater 18 is electrically connected in series with the PTC heater 17, when the electric resistance of the PTC heater 17 is increased, the voltage drop at the PTC heater 17 is increased. The supply voltage is lowered, the amount of heat generated by the nichrome heater 18 is reduced, and the temperature rise of the nichrome heater 18 is suppressed. In other words, since the nichrome heater 18 and the PTC heater 17 are electrically connected in series when the blowing to the heating means 12 is reduced, the PTC heater 17 can control the temperature of the PTC heater 17 to be constant, The temperature rise of the nichrome heater 18 can also be suppressed.

  According to these results, the safety of the heating means can be further improved even if the amount of air passing through the dehumidification rotor is reduced by closing the opening of the dehumidification rotor.

  When only the PTC heater 17 is used as the heating means, the PTC heater 17 has a characteristic that when the temperature is low, the electrical resistance of the PTC heater 17 is small. The value was increased, which was a cause of reducing the life of the PTC heater 17. Therefore, the heating means is configured such that the nichrome heater 18 and the PTC heater 17 are electrically connected in series, so that the electric resistance of the PTC heater 17 and the electric resistance of the nichrome heater 18 are added as a circuit. That is, compared with the case where only the PTC heater 17 is used as the heating means 12, when the heating means 12 is electrically connected in series with the nichrome heater 18 and the PTC heater 17, the operation is started by the electric resistance of the nichrome heater 18. The inrush current value to the PTC heater 17 at the time can be reduced.

  Further, a PTC heater 17 as the heating means 12 is provided on the upstream side of the nichrome heater 18. Specifically, since the heating means 12 is provided between the radiator 6 and the moisture releasing portion 11 of the dehumidifying rotor 10, the air sucked into the main body case 3 from the inlet 1 is heated from the radiator 6. First, it passes through the PTC heater 17, and then blown to the dehumidifying rotor 10 through the nichrome heater 18.

  Thus, the air taken into the main body case 3 from the air inlet 1 is first warmed by the radiator 6. Next, it is heated by the PTC heater 17 that is the heating means 12, further heated by the nichrome heater 18 that is the heating means 12, and blown to the dehumidifying rotor 10.

  Here, the heating operation by the PTC heater 17 and the nichrome heater 18 which are the heating means 12 will be described. First, in the PTC heater 17 which is the heating means 12, heat generated by the PTC element 21 of the PTC heater 17 is transmitted from the PTC element 21 to the fin 22, and air hits the fin 22. At this time, the air flow is heated while being rectified by the fins 22. Next, in the nichrome heater 18 that is the heating means 12, heat is generated by the nichrome wire of the nichrome heater 18, and the air hits the nichrome wire, thereby heating the air and generating heat generated by the nichrome wire of the nichrome heater 18. The moisture release part 11 of the dehumidification rotor 10 is directly heated.

  That is, in the PTC heater 17 and the nichrome heater 18 that are the heating means 12, two types of heating, that is, heating to the air and heating to the dehumidifying rotor 10 are performed.

  First, air is heated by the radiator 6 and then heated while being rectified by the fins 22 of the PTC heater 17 and further heated by the fins 22 of the PTC heater 17. When the air rectified by 22 hits the nichrome wire, it is further heated. Next, the heating to the dehumidification rotor 10 heats the moisture release part 11 of the dehumidification rotor 10 directly with the heat which generate | occur | produced with the nichrome wire.

  In this way, air that is rectified while being heated by the fins 22 of the PTC heater 17 is heated by hitting the nichrome wire, and air having a small temperature non-uniformity hits the nichrome wire. The shape loss of the line can be suppressed. In addition, since the air with small temperature unevenness hits the nichrome wire when the dehumidifying rotor 10 is heated, the heat generation in the nichrome wire becomes almost uniform, the heat deformation in the moisture releasing portion 11 of the dehumidifying rotor 10 becomes uniform, and the dehumidifying rotor The lifetime due to thermal deformation of 10 can be extended.

  Further, the heating area of the PTC heater unit 23 composed of the PTC heater 17 as the heating means 12 is larger than the heating area of the nichrome heater unit 20 composed of the nichrome heater 18.

  Specifically, first, when air is heated by the PTC heater 17, the heat generated by the PTC element 21 of the PTC heater 17 is transmitted from the PTC element 21 to the fin 22, and the air hits the fin 22. Heat the air. On the other hand, in the case of heating with the nichrome heater 18, the air is heated by the air hitting the spiral nichrome wire, but when the air is heated, the air is mainly heated by the PTC heater 17. Since the surface area of the fin 22 which is the heating area of the PTC heater unit 23 is larger than the surface area of the nichrome wire which is the heating area of the nichrome heater unit 20, heating to the air can be performed efficiently.

  The air passage cross-sectional area of the air passage provided with the PTC heater unit 23 as the heating means 12 is larger than the air passage cross-sectional area of the air passage provided with the nichrome heater unit 20.

  Thus, since the air passage cross-sectional area of the air passage in which the PTC heater unit 23 is provided is larger than the air passage cross-sectional area of the air passage in which the nichrome heater unit 20 is provided, many PCT heaters 17 are mounted on the PTC heater unit 23. Therefore, the ventilation resistance in the PTC heater unit 23 can be reduced. Further, since the air rectified by the PTC heater unit 23 further flows into the nichrome heater unit 20 having a narrow air passage cross-sectional area via the connection air passage gradually narrowed, the rectified air is heated by hitting the nichrome wire. Since the air with small temperature unevenness hits the nichrome wire, the thermal deformation of the nichrome wire becomes almost uniform, and the deformation of the nichrome wire can be suppressed. Further, since the air to the dehumidifying rotor 10 is heated with air having a small temperature unevenness, the heat generated in the nichrome wire becomes almost uniform, the thermal deformation in the moisture releasing portion of the dehumidifying rotor 10 becomes uniform, and the dehumidifying rotor 10 is heated. It is possible to extend the life due to thermal deformation.

  Further, since the PTC heater unit 23 is substantially rectangular, a plurality of PTC heaters 17 can be efficiently mounted side by side on the same surface.

(Embodiment 2)
As shown in FIGS. 5 and 6, the second embodiment is different from the first embodiment in the nichrome heater unit 20a. The nichrome heater unit 20 a is formed of a nichrome heater air passage portion 25 provided with the nichrome heater 18 and an air passage portion 26 that does not pass through the nichrome heater. The nichrome heater air passage portion 25 is dehumidified from the air passage portion 26. Is provided on the downstream side in the rotation direction.

  That is, the nichrome heater unit 20a is provided with two types of air passages. First, one air passage is the nichrome heater air passage portion 25 provided with the nichrome heater 18, and the other is the air passage portion 26 which is a simple air passage where the nichrome heater 18 is not provided. Therefore, the air that has passed through the PTC heater unit 23 that is the heating means 12a flows separately into the nichrome heater air passage portion 25 and the ventilation passage portion 26 that are the nichrome heater unit 20a. Therefore, since the nichrome heater air passage portion 25 is provided on the downstream side in the rotation direction of the dehumidification rotor 10 from the ventilation passage portion 26, the dehumidification rotor 10 in the dehumidification portion 11 first rotates the dehumidification rotor 10, and the nichrome heater. It reaches the ventilation path portion 26 as a unit. Then, the air of the dehumidification rotor 10 is discharged | emitted by passing through the PTC heater unit 23 and sending the heated medium temperature air to the dehumidification rotor 10 through the ventilation path part 26 which is the nichrome heater unit 20a. Next, when the dehumidification rotor further rotates and reaches the nichrome heater air passage portion 25 which is the nichrome heater unit 20a, the heated air passes through the PTC heater unit 23 and the heated air is the nichrome heater air passage portion which is the nichrome heater unit 20a. The high-temperature air further heated at 25 is blown to the dehumidifying rotor 10, thereby further releasing the humidity of the dehumidifying rotor 10 and heating the dehumidifying rotor 10 directly by the heat generated by the nichrome heater 18.

  As a result, the dehumidification rotor 10 rotates and blows air having different temperatures in the ventilation path portion 26 and the nichrome heater airflow path portion 25, which are the nichrome heater unit 20a, and is directly dehumidified by the heat generated by the nichrome wire. The air in the dehumidification rotor is released by heating, but first the medium temperature air is blown and then the high temperature air is blown, and the dehumidification is directly performed by the heat generated by the nichrome wire. By heating the rotor 10 and raising the temperature of the dehumidification rotor 10 in two stages, thermal deformation in the moisture releasing portion 11 of the dehumidification rotor 10 does not occur suddenly and occurs in two stages. The lifetime due to thermal deformation can be extended.

  Further, since the nichrome heater air passage portion 25 and the ventilation passage portion 26 of the nichrome heater unit 20a have a substantially fan shape, the thermal expansion of the dehumidification rotor 10 from the center portion toward the outer periphery is substantially increased by heating in the nichrome heater unit 20a. Since the fan-shaped shape occurs almost uniformly, the life of the dehumidifying rotor 10 due to thermal deformation can be extended.

  The air passage cross-sectional area of the air passage provided with the PTC heater unit 23 as the heating means 12a is substantially the same as the air passage cross-sectional area of the air passage provided with the nichrome heater unit 20a.

  Specifically, since the air passage sectional area of the air passage where the PTC heater unit 23 which is the heating means 12a is provided and the air passage where the nichrome heater unit 20a is provided is substantially the same, the air heated by the PTC heater unit 23 is When flowing to the nichrome heater unit 20a, it flows to the nichrome heater unit 20a via the connecting air passage 24 having substantially the same air passage cross-sectional area as the PTC heater unit 23. Therefore, the ventilation resistance in the connecting air passage 24 can be suppressed.

  In addition, the angle of the substantially fan shape of the nichrome heater unit 20a is 90 degrees, and the radius dimension of the substantially fan shape is substantially the same as the dimension of one side of the substantially square shape of the PTC heater unit 23, so the air rectified by the PTC heater unit is Since it flows into the nichrome heater unit via the connection air passage 24, the cross-sectional shape of the connection air passage 24 that changes from a substantially square shape to a substantially fan shape is substantially the same shape. Can be suppressed.

(Embodiment 3)
As shown in FIG. 7, the third embodiment is different from the second embodiment in a nichrome heater unit 20b.

The nichrome heater unit 20b is provided with the air passage portions 26b on both the upstream side and the downstream side of the nichrome heater air passage portion 25b. That is, the nichrome heater unit 20b is provided with two kinds of air passages at three locations. . First, one air passage is a nichrome heater air passage portion 25 b provided with the nichrome heater 18, and the other is a ventilation passage portion 26 b that is a simple air passage that does not pass through the nichrome heater 18. Therefore, the air that has passed through the PTC heater unit 23 that is the heating means flows separately into the nichrome heater air passage portion 25b and the ventilation passage portion 26b that are the nichrome heater unit 20b.

  Therefore, since the nichrome heater unit 20b is provided with the ventilation passage portions 26b on both the upstream side and the downstream side of the nichrome heater air passage portion 25b, the dehumidifying rotor 10 is the moisture releasing portion 11, and first, the dehumidifying rotor 10 is provided. When it rotates and reaches the ventilation path portion 26b, which is the nichrome heater unit 20b, it passes through the PTC heater unit 23, and the heated medium-temperature air passes through the ventilation path portion 26b, which is the nichrome heater unit 20b, to the dehumidification rotor 10. By being blown, the moisture of the dehumidifying rotor 10 is released.

  Next, when the dehumidification rotor 10 further rotates and reaches the nichrome heater air passage portion 25b which is the nichrome heater unit 20b, the heated air passes through the PTC heater unit 23 and the heated air is the nichrome heater air passage which is the nichrome heater unit 20b. The high-temperature air further heated in the portion 25b is blown to the dehumidification rotor 10 and the dehumidification rotor 10 is directly heated by the heat generated by the nichrome heater 18, thereby further releasing the moisture of the dehumidification rotor 10. is there.

  Further, when the dehumidifying rotor 10 rotates and reaches the ventilation path portion 26b that is the nichrome heater unit 20b, the medium-temperature air that has passed through the PTC heater unit 23 is heated through the ventilation path portion 26b that is the nichrome heater unit 20b. Then, the air is blown to the dehumidification rotor 10, thereby releasing the moisture of the dehumidification rotor 10 and reducing the temperature of the dehumidification rotor 10 to an intermediate temperature.

  As a result, the dehumidification rotor 10 rotates and blows air having different temperatures between the ventilation path portion 26b and the nichrome heater airflow path portion 25b, which are the nichrome heater units 20b, and the dehumidification rotor directly by the heat generated by the nichrome wire. 10 is heated to release the moisture of the dehumidifying rotor 10. First, the medium temperature air is blown, then the high temperature air is blown, and the dehumidifying rotor 10 is heated with nichrome wire. In addition, by blowing air of medium temperature, by raising and lowering the temperature of the dehumidification rotor in three stages, thermal deformation at the time of temperature rise and temperature drop at the moisture release part of the dehumidification rotor does not occur suddenly, Temperature changes occur in two stages, respectively, and the life of the dehumidifying rotor due to thermal deformation can be extended.

  As described above, the present invention includes a main body case having an intake port and an exhaust port, and a heat pump provided in the main body case. The heat pump includes a compressor and a heat radiator sequentially provided downstream of the compressor, The radiator is formed by an expansion unit and a heat absorber, and is provided with a blower unit that blows air sucked into the main body case from the intake port to the exhaust port through the heat sink and the heat absorber. A dehumidification rotor that can rotate freely between the heat absorber and the dehumidification rotor comprises a moisture release portion and a moisture absorption portion, and the moisture absorption portion is provided in an air passage between the heat absorber and the exhaust port, The moisture releasing part is provided in an air path between the radiator and the heat absorber, and a heating means is provided in an air path between the radiator and the moisture releasing part, and the heating means is a nichrome heater. And PTC heater are electrically connected in series It is those formed by Rukoto, in which it is possible to ensure further safety against the temperature rise of the heating means.

  In other words, the heating means provided in the air path between the radiator and the moisture releasing part is formed by electrically connecting the nichrome heater and the PTC heater in series, so that dust or the like is clogged in the intake port and the heating means is provided. First, the temperature of the PTC heater increases. Therefore, as a characteristic of the PTC heater, the electrical resistance of the PTC heater also increases, the amount of heat generation decreases, and the temperature of the PTC heater is controlled to be constant. In addition, since the nichrome heater is electrically connected in series with the PTC heater, if the electrical resistance of the PTC heater increases, the voltage drop at the PTC heater increases, and accordingly, the supply voltage to the nichrome heater decreases. The calorific value of the nichrome heater is reduced, and the temperature rise of the nichrome heater is suppressed. That is, when the air flow to the heating means decreases, the nichrome heater and the PTC heater are electrically connected in series, so the PTC heater can control the temperature of the PTC heater itself at a constant level and the temperature of the nichrome heater increases. Can also be suppressed.

  As a result, the safety of the heating means can be further ensured even if the amount of air passing through the dehumidification rotor is reduced by closing the opening of the dehumidification rotor.

  Therefore, it is expected to be utilized as a dehumidifying device for home use or office use.

Schematic sectional view of the dehumidifying device of Embodiment 1 of the present invention The figure which shows the heating means of the dehumidification apparatus of Embodiment 1 of this invention. The figure which shows the heating means of the dehumidification apparatus of Embodiment 1 of this invention. The figure which shows the heating means of the dehumidification apparatus of Embodiment 1 of this invention. The figure which shows the heating means of the dehumidification apparatus of Embodiment 2 of this invention. The figure which shows the heating means of the dehumidification apparatus of Embodiment 2 of this invention. The figure which shows the heating means of the dehumidification apparatus of Embodiment 3 of this invention.

DESCRIPTION OF SYMBOLS 1 Intake port 2 Exhaust port 3 Main body case 4 Heat pump 5 Compressor 6 Radiator 7 Expansion means 8 Heat absorber 9 Air blower 10 Dehumidification rotor 11 Moisture release part 12 Heating means 12a Heating means 13 Moisture absorption part 16 Drive means 17 PTC heater 18 Nichrome Heater 19 Fixed frame 20 Nichrome heater unit 20a Nichrome heater unit 20b Nichrome heater unit 21 PTC element 22 Fin 23 PTC heater unit 24 Connecting air passage 25 Nichrome heater air passage portion 25b Nichrome heater air passage portion 26 Ventilation passage portion 26b Ventilation passage portion

Claims (10)

A main body case having an intake port and an exhaust port, and a heat pump provided in the main body case are provided. The heat pump is formed by a compressor and a radiator, an expansion unit, and a heat absorber sequentially provided downstream of the compressor. And air blowing means for blowing air sucked into the main body case from the air intake port to the exhaust port through the heat radiator and the heat absorber in turn, and between the heat radiator and the heat absorber. A dehumidification rotor is movably provided, and the dehumidification rotor is composed of a moisture release portion and a moisture absorption portion. The moisture absorption portion is provided in an air passage between the heat absorber and the exhaust port, and the moisture release portion is the radiator. Provided in the air passage between the heat sink and the heat sink, and a heating means is provided in the air passage between the radiator and the moisture release portion. The heating means electrically connects the nichrome heater and the PTC heater. Formed by connecting in series Dehumidifier. The dehumidifying device according to claim 1, wherein the PTC heater as the heating means is provided on the upstream side of the air passage from the nichrome heater. The dehumidifying device according to claim 1 or 2, wherein a heating area of a PTC heater unit made of a PTC heater as a heating means is larger than a heating area of a nichrome heater unit made of a nichrome heater. The dehumidifier according to any one of claims 1 to 3, wherein an air passage cross-sectional area of an air passage provided with a PTC heater unit as a heating means is larger than an air passage cross-sectional area of an air passage provided with a nichrome heater unit. The nichrome heater unit is formed of a nichrome heater air passage portion provided with a nichrome heater and a ventilation passage portion not provided with the nichrome heater. The nichrome heater air passage portion is provided downstream of the air passage portion in the rotation direction of the dehumidifying rotor. The dehumidification apparatus as described in any one of Claims 1-3. The nichrome heater unit is composed of a nichrome heater air passage portion provided with a nichrome heater and an air passage portion not provided with the nichrome heater, and the air passage portion is provided on both the upstream side and the downstream side of the nichrome heater air passage portion. The dehumidification apparatus as described in any one of Claims 1-3. The dehumidifying device according to claim 5 or 6, wherein the nichrome heater air passage portion and the air passage portion of the nichrome heater unit are substantially fan-shaped. The dehumidification according to any one of claims 5 to 7, wherein an air passage cross-sectional area of an air passage provided with a PTC heater unit as heating means is substantially the same as an air passage cross-sectional area of an air passage provided with a nichrome heater unit. apparatus. The dehumidifying device according to any one of claims 3 to 8, wherein the PTC heater unit is substantially rectangular. The dehumidifying device according to any one of claims 6 to 9, wherein the nichrome heater unit has a substantially fan-shaped angle of 90 degrees, and the substantially fan-shaped radial dimension is substantially the same as a dimension of one side of the substantially square shape of the PTC heater unit.

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