TW201700923A - Dehumidifier - Google Patents

Abstract

A dehumidifier 1 comprises a dehumidifying rotor 200 and a heater 250. The dehumidifying rotor 200 absorbs moisture from process air through a process air passage 2, and releases the absorbed moisture to purge air passing through a purge air passage 3. The heater 250 heats the dehumidifying rotor 200. The heater 250 includes first and second PTC heaters 251A, 251B having short side portions 254, 254 and long side portions 255, 255, respectively. The first PTC heater 251A is arranged so that a pair of the short side portions 254, 254 crosses the outer circumferential part of dehumidifying rotor 200. The second PTC heater 251B is arranged side-by-side in a radial direction of the dehumidifying rotor 200 so that the long side portion 255 of the second PTC heater 251B is opposed to the long side portion 255 of the first PTC heater 251A.

Description

dehumidifier

The present invention relates to a dehumidifier. The dehumidifier includes, in addition to the indoor air, a person who dehumidifies the clothing, and both of them are dehumidification targets. Further, the dehumidifier includes a dryer that dries the interior of the dehumidification object and the clothes.

The dehumidifier includes a process air fan that takes in external air (process air) from the suction port into the process air path and discharges it from the air outlet, and circulates the air (regeneration air) in the reconditioning air path that is a closed path. Regeneration air fan. The dehumidification rotor that processes the air path and the regeneration air path, adsorbs moisture from the process air, and recovers the regeneration air, is disposed across the two paths. Further, a heater that heats the regeneration air and the dehumidification rotor is disposed in the regeneration air path so as to be located on one surface side of the dehumidification rotor.

Patent Documents 1 and 2 disclose a dehumidifier that uses a PTC heater having a function of adjusting the heating temperature in accordance with the peripheral temperature in order to improve the safety of the machine. In Patent Document 1, a pair of each pair is used. The three PTC heaters having a short side portion and a long side portion have a rectangular shape in which the long side portions of the PTC heaters face each other and are arranged in a rectangular shape. In Patent Document 2, a non-rectangular PTC heater that responds to the shape of the heating region of the dehumidification rotor is used.

The dehumidifier of Patent Document 1 does not particularly consider the arrangement of the PTC heater. Therefore, there is a case where a part of the PTC heater heats a region other than the dehumidification rotor, or a region where the dehumidification rotor generates insufficient heating. In the dehumidifier of Patent Document 2, the PTC heater in accordance with the shape of the heating region of the dehumidification rotor is used, so that the problem of Patent Document 1 does not occur, but the cost of the PTC heater having a special shape becomes high.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 5374989

[Patent Document 2] Japanese Patent No. 5112393

An object of the present invention is to efficiently heat a dehumidification rotor by a PTC heater having a simple structure to improve dehumidification efficiency.

The present invention provides a dehumidifier comprising: a process air path having a suction port and a blow port; and a regeneration air path being closed a disk-shaped dehumidification rotor rotatably disposed across the process air path and the regeneration air path, adsorbing moisture from the process air passing through the process air path, and discharging the regeneration through the regeneration air path The water and the heating means are disposed in the regeneration air path so as to be located on one surface side of the dehumidification rotor, and heat the regeneration air and the dehumidification rotor; and the heating means has one each a first and a second PTC heater having a rectangular shape in a short side portion and a long side portion; wherein the first PTC heater is disposed such that a short side portion of the pair of the short side portions intersects with an outer peripheral portion of the dehumidification rotor; In the PTC heater, the first PTC heater is arranged side by side in the radial direction inner side of the dehumidification rotor so that the long side portion faces the long side portion of the first PTC heater.

The PTC heater used in the dehumidifier of the present invention has a rectangular shape and is a simple and standardized structure, so that an increase in cost can be prevented. Further, since the first PTC heater is disposed such that each short side portion intersects with the outer peripheral portion of the dehumidification rotor, the outer peripheral portion of the dehumidification rotor can be surely heated. Further, since the portion protruding from the dehumidification rotor to the outside is only one apex of the short side portion of one pair of the PTC heaters, the state of the heating unnecessary region can be minimized. Therefore, the dehumidification rotor and the regeneration air can be efficiently heated. As a result, the moisture contained in the treatment air can be efficiently adsorbed by the dehumidification rotor, and the moisture adsorbed by the dehumidification rotor can be efficiently recovered by the regeneration air, so that the dehumidification efficiency can be improved.

The first and second PTC heaters have the same length of the long side portion, and the second PTC heater has one of the aforementioned The short side portion is disposed to intersect with the outer peripheral portion of the dehumidification rotor. In this way, when a PTC heater of the same specification is used, an increase in cost can be prevented. Further, since the short side portion of one of the second PTC heaters is disposed so as to intersect the outer peripheral portion of the dehumidification rotor, the heating efficiency of the dehumidification rotor can be further improved.

A heater unit that integrally mounts the first and second PTC heaters on one side of the dehumidification rotor, and the heater unit has a heater case that is open at one end and is disposed on an opening side of the heater cartridge. A holding member that positions and holds the first and second PTC heaters, and a positioning plate that is disposed on the opening side of the heater case and that positions the holding member in the heater case. As a result, the assembly workability of two or more PTC heaters can be improved.

In the heater unit, an introduction portion into which the regeneration air is introduced is disposed on an opening side of the heater cartridge, and a heater arrangement portion of the first and second PTC heaters is disposed by the holding member, and A gap portion that communicates with the introduction portion and the heater arrangement portion is provided between the closing wall on the opposite side of the opening of the heater cartridge and the holding member. In such a heater unit, the regeneration air is introduced from the introduction portion and flows into the gap portion. Thereafter, the reconditioning air collides with the closing wall of the heater case, rotates in the gap portion, and is supplied to the dehumidifying rotor side through the PTC heater in the heater arranging portion. Further, the reconditioning air is diffused by the collision with the blocking wall and the rotation in the gap portion, and is supplied to the heater arrangement portion in this state, so that the regeneration air can be heated without unevenness by the PTC heater. Therefore, the dehumidification by the regeneration air can be improved The efficiency of the moisture adsorbed by the rotor can also improve the dehumidification efficiency in this view.

The holding member has a continuous stepped arrangement hole in which the first and second PTC heaters are disposed, and a first locking portion that locks an end portion of the PTC heater on the gap portion side; and the holding member The locking member is disposed on the opening side of the heater cartridge, and the end portion on the opening side of the PTC heater is locked by the second locking portion of the locking member. In this way, the first and second PTC heaters can be held and surely held between the holding member and the locking member.

It is preferable that the PTC heater is disposed on the upstream side in the direction in which the process air of the dehumidification rotor flows. In this way, for the dehumidification rotor, the regeneration air can be passed in the same direction as the treatment air, so that the recovery efficiency of the moisture by the regeneration air can be improved. Specifically, when the process air passes from one side of the dehumidification rotor to the other side, the moisture contained in the process air is often adsorbed by one side of the dehumidification rotor. Therefore, by passing the regeneration air in the same direction as the treatment air for the dehumidification rotor, the recovery efficiency of the moisture adsorbed by the dehumidification rotor can be improved.

In the dehumidifier of the present invention, a PTC heater having a rectangular shape and a simple structure is used, so that an increase in cost can be prevented. Further, since the first PTC heater is disposed such that the short side portions of the pair intersect with the outer peripheral portion of the dehumidification rotor, the state of the heating unnecessary region can be minimized. Thereby, the dehumidification rotor can be heated efficiently, and the dehumidification efficiency can be improved.

1‧‧‧Dehumidifier

2‧‧‧Processing air path

2a~2e‧‧‧Processing part of the air path

3‧‧‧Regeneration air path

3a~3e‧‧‧ part of the regenerative air path

100‧‧‧ body

101‧‧‧Base

102‧‧‧ base

103‧‧‧立立部

104‧‧‧Rotor Configuration Department

105a~105c‧‧‧ Ventilation Department

106‧‧‧Metal plates

110A, 110B‧‧‧ Exterior panels

111A, 111B‧‧‧ reinforcing plate

112‧‧‧Inhalation

200‧‧‧Dehumidification rotor

201‧‧‧Hydraulic materials

202‧‧‧Box components

203‧‧‧Axis branch

204‧‧‧Outer frame

204a‧‧‧ Gear Department

205‧‧‧Line box

210‧‧‧Electric motor

240‧‧‧heater unit

250‧‧‧heater (heating means)

251A~251C‧‧‧PTC heater

252‧‧‧ Heat transfer components

253‧‧‧ Heat sink

253a‧‧‧End of the gap side

253b‧‧‧End of the open side

254‧‧‧ Short side

255‧‧‧Longside

256A~256D‧‧‧ terminal

257a~257b‧‧‧Wire

258‧‧‧Power supply

259a, 259b‧‧‧Switching elements

260‧‧‧heater box

261a‧‧‧Closed wall

261b‧‧‧ peripheral wall

262‧‧‧ openings

263‧‧‧ fixed plate

264‧‧‧Axis

265‧‧‧Importing Department

266‧‧‧Heater Configuration Department

267‧‧‧Voids

270‧‧‧ Keeping components

271‧‧‧Configure hole

272‧‧‧1st stop

273‧‧‧Open side support

274‧‧‧ occlusion side support

275‧‧‧ screw holes

276‧‧‧Locking members

277‧‧‧ bumps

278‧‧‧2nd stop

280‧‧‧ Positioning board

281‧‧‧ upper edge

282‧‧‧ lower edge

300‧‧‧Main heat exchanger

310‧‧‧ tube

320‧‧‧ upper head

321‧‧‧Drainage Department

330‧‧‧ lower head

331‧‧‧Drainage Department

350‧‧‧Sub heat exchanger

360‧‧‧ tube

370‧‧‧ upper head

371‧‧‧Inlet

380‧‧‧ lower head

381‧‧‧Tube Department

400‧‧‧Processing air fan

410‧‧‧Fan box

411‧‧‧Send out

450‧‧‧Regeneration air fan

460‧‧‧Fan box

461‧‧‧1st catheter department

462‧‧‧2nd catheter department

490‧‧‧Two-axis motor

500‧‧‧ conduit components

501‧‧‧1st connection

502‧‧‧2nd connection

600‧‧‧ head

640‧‧‧Air Supply Department

641‧‧‧Air supply guide

642‧‧‧ blown out

660‧‧‧ venetian

680‧‧‧Regular components

700‧‧‧Water Storage Department

720‧‧‧Water storage tank

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

Fig. 2 is an exploded perspective view of the dehumidifier.

3A] A perspective view of the body of Fig. 2 as seen from the front side.

3B] A perspective view of the body of Fig. 2 as seen from the back side.

[Fig. 4] A conceptual sectional view of a dehumidifier.

[Fig. 5] A system diagram of a dehumidifier.

FIG. 6A is an exploded perspective view of the body of FIG. 2. FIG.

[Fig. 6B] An exploded perspective view of Fig. 6A is viewed from the opposite side.

[Fig. 7] A front view showing a heater unit.

Fig. 8 is a front view showing a state in which a heater is disposed in a dehumidification rotor.

[Fig. 9] A perspective view of a heater unit.

[Fig. 10A] An exploded perspective view of the heater unit.

[Fig. 10B] An exploded perspective view of the heater unit viewed from the opposite side.

Fig. 11 is a cross-sectional view showing a portion in which a heater is disposed.

Fig. 12 is a front view showing a modification of the heater arrangement for the dehumidification rotor.

Fig. 13 is a front elevational view showing another modification of the heater arrangement for the dehumidification rotor.

Hereinafter, embodiments of the present invention will be described in accordance with the drawings.

Hereinafter, embodiments of the present invention will be described in accordance with the drawings. Furthermore, in the following description, terms indicating a specific direction and position (for example, terms including "upper", "lower", "side", and "end") are used as needed, but the use of these terms is The understanding of the invention with reference to the drawings is made easier, and the technical scope of the invention is not limited by the meaning of the terms. Further, the following description is merely illustrative in nature and is not intended to limit the invention, the application, or the use thereof.

Fig. 1 to Fig. 3B show a dehumidifier 1 which is an example of a blower according to an embodiment of the present invention. 4 is a conceptual cross-sectional view of the dehumidifier 1. Fig. 5 is a system diagram of the dehumidifier 1.

(overall construction)

1 and 2, the dehumidifier 1 has a cylindrical outer appearance, and includes a main body 100, a head portion 600 disposed on the upper portion of the main body 100, and a water storage portion 700 disposed at a lower portion of the main body 100. The dehumidifier 1 dehumidifies (processes) the air (process air) which is externally sucked from the suction port 112 of the main body 100 (for example, the inside of the dehumidification target) by moisture adsorption by the dehumidification rotor 200 in the main body 100. The dehumidified process air is discharged from the air outlet 642 of the head 600 to the outside. The moisture adsorbed by the dehumidification rotor 500 is recovered by the air (regeneration air) circulating in the closed path in the main body 100, and is stored in the water storage tank 720 of the water storage unit 700.

The head 600 is provided with a blower unit 640 that is rotatable about the axis L of the body 100 in FIG. 1 . The air supply unit 640 is shown in FIG. The reference position is used as a starting point, and is rotated in the circumferential direction A (around the head rotation) around the regulation member 680 in a range of slightly ±180 degrees. A movable louver 660 is disposed in the air outlet 642 of the air blowing portion 640. The louver 660 is swingable in the setting range of the up-and-down direction B in FIG.

As shown in FIGS. 4 and 5, the dehumidifier 1 includes a path (process air path) 2 through which the process air shown by the broken line flows, and a path (regeneration air path) 3 through which the regeneration air shown by the solid line flows. The dehumidification rotor 200 is disposed across the process air path 2 and the regeneration air path 3 . The dehumidifier 1 is provided on one surface side (suction port 112 side) of the dehumidification rotor 200, and includes a heater (heating means) 250 that heats the regeneration air and the dehumidification rotor 200. In addition, the dehumidifier 1 includes a main heat exchanger (first heat exchanger) 300 disposed on one surface side of the dehumidification rotor 200, and a sub heat exchanger (second heat exchanger) disposed on the other surface side of the dehumidification rotor 200. ) 350. Further, the dehumidifier 1 includes a processing air fan (first air blowing means) 400 for sucking and discharging the processing air, and a reconditioning air fan (second air blowing means) 450 for circulating the regeneration air.

As shown in FIGS. 1 to 3B, the main body 100 includes a base on which components including the dehumidification rotor 200, the heater 250, the main heat exchanger 300, the sub heat exchanger 350, the process air fan 400, and the regeneration air fan 450 are disposed. 101. The base 101 includes a base portion 102 having a circular shape in a plan view at the lower end, and a standing wall portion 103 that is erected in a rectangular shape from the base portion 102. The outer peripheral portion of the susceptor 101 is covered by outer sheath plates 110A and 110B made of semi-cylindrical resin. The exterior panels 110A and 110B are provided with metal reinforcing plates 111A and 111B on the inner surface side. Outer panel on one side 110A, a suction port 112 for extracting air in the room is provided. The suction port 112 is formed by a plurality of slits extending in the vertical direction. Further, on the inner surface side of the suction port 112, a filter (not shown) is detachably disposed along the exterior panel 110A.

(Processing air path)

As shown in FIGS. 4 and 5, the process air path 2 is connected from the suction port 112 to the air outlet 642. In the process air path 2, the main heat exchanger 300, the dehumidification rotor 200, the sub heat exchanger 350, and the process air fan 400 are sequentially disposed so that the process air flows from the suction port 112 toward the air outlet 642.

As best shown in Fig. 5, the process air path 2 includes the first to fifth portions 2a to 2e. The first portion 2a is connected from the suction port 112 to the main heat exchanger 300. As shown in FIG. 4, the first portion 2a is formed by a space formed between the suction port 112 and the main heat exchanger 300. The second portion 2b is connected from the main heat exchanger 300 to the dehumidification rotor 200. As shown in FIG. 4, the second portion 2b is formed by a space formed between the main heat exchanger 300 and the dehumidification rotor 200. The third portion 2c is connected from the dehumidification rotor 200 to the sub heat exchanger 350. As shown in FIG. 4, the third portion 2c is formed by a space formed between the dehumidification rotor 200 and the sub heat exchanger 350. The fourth portion 2d is connected from the sub heat exchanger 350 to the process air fan 400. As shown in FIG. 4, the fourth portion 2d is formed by a space formed between the sub heat exchanger 350 and the suction port 112 of the process air fan 400. Part 5 2e from the process air fan 400 The discharge port is connected to the air outlet 642. As shown in FIG. 4, the fifth portion 2e includes a feeding portion 411 for processing the fan case 410 of the air fan 400, and a blowing guide portion 641 of the head portion 600.

When the process air fan 400 is driven, the process air is sucked from the suction port 112. After the temperature of the process air is raised by the main heat exchanger 300, it is dehumidified when the rotor 200 is dehumidified. Next, after the sub heat exchanger 350 is further heated, it flows into the fan case 410 of the process air fan 400. Thereafter, it is sent upward from the delivery portion 411 of the fan case 410, and is discharged from the air outlet 642 of the head 600 to the room.

(regeneration air path)

As shown in FIG. 4 and FIG. 5, the dehumidification rotor 200, the sub heat exchanger 350, the main heat exchanger 300, and the dehumidification rotor 200, and the direction in which the regeneration air flows are sequentially arranged in the regeneration air path 3 with the heater 250 as a starting point. Regeneration air fan 450.

As is clear from FIG. 5, the regeneration air path 3 includes the first to fifth portions 3a to 3e. The first portion 3a is connected to the heater 250 from the discharge port of the regeneration air fan 450. As shown in FIGS. 3A, 3B, and 4, the first portion 3a includes a duct portion 462 between the fan case 460 of the regenerative air fan 450 and the heater case 260 of the heater 250. The second portion 3b is connected from the heater 250 to the dehumidification rotor 200. As shown in FIG. 4, the second portion 3b is formed by a space (gap) between the heater 250 formed in the heater case 260 and the dehumidification rotor 200. The third portion 3c is connected from the dehumidification rotor 200 to the sub heat exchanger 350. As shown in FIG. 4, the third portion 3c is formed by the internal space of the upper header 370 of the sub heat exchanger 350. The fourth portion 3d is connected from the sub heat exchanger 350 to the main heat exchanger 300. As shown in FIGS. 3A, 3B, and 4, the fourth portion 3d includes a lower head 380 of the sub-heat exchanger 350, a duct member 500, and an upper head 320 of the main heat exchanger 300. The fifth portion 3e is connected from the main heat exchanger 300 to the regeneration air fan 450. As shown in FIG. 3B and FIG. 4, the fifth portion 3e includes a duct portion 461 between the lower head 330 of the main heat exchanger 300 and the fan case 460 of the regeneration air fan 450.

When the regeneration air fan 450 is driven, the regeneration air sent from the regeneration air fan 450 is heated by the heater 250. Then, the regeneration air is collected (adsorbed) by the moisture removed by the dehumidification rotor 200 when passing through the dehumidification rotor 200, and then cooled by the sub heat exchanger 350. Then, it flows into the main heat exchanger 300 through the duct member 500, and is cooled again. Thereafter, the regeneration air returns to the regeneration air fan 450 and is again sent to the heater 250. Further, the water condensed by the regeneration air by the heat exchangers 300 and 350 is stored in the water storage tank 720.

(details of heater configuration)

As shown in FIG. 3A and FIG. 4, the heater 250 is configured as a heater unit 240 disposed in the heater casing 260, and is integrally attached to one surface side of the dehumidification rotor 200. The heater unit 240 is disposed on the upstream side (the suction port 112 side) in the direction in which the process air of the dehumidification rotor 200 flows. In the heater unit 240, the guide of the fan case 460 connected to the regeneration air fan 450 The pipe portion 462 supplies the regeneration air that is blown from the regeneration air fan 450. Moreover, the reconditioning air heated by the heater 250 is supplied to the dehumidification rotor 200 and the sub heat exchanger 350 in the upper head 370 where the sub-heat exchanger 350 is disposed to face the dehumidification rotor 200.

Specifically, as shown in FIG. 6A and FIG. 6B, a circular rotor arrangement portion 104 is provided in the standing wall portion 103 of the susceptor 101. The base 101 includes first to third ventilation portions 105a to 105c on the outer peripheral portion of the rotor arrangement portion 104. The first ventilation portion 105a is formed in the upper left portion of the standing wall portion 103 in FIG. 6B. In the first ventilation unit 105a, the heater unit 240 is disposed on one end side, and the duct portion 462 of the fan case 460 of the regenerative air fan 450 is connected to the other end side. The second ventilation portion 105b is formed on the upper left side of the standing wall portion 103 in FIG. 6A. In the second ventilation portion 105b, the duct member 500 to which the lower head 380 of the sub heat exchanger 350 is connected is connected to one end side, and the duct portion 321 of the upper head 320 of the main heat exchanger 300 is connected to the other end side. The third ventilation portion 105c is formed in the lower right portion of the standing wall portion 103 in FIG. 6B. In the third ventilation portion 105c, the duct portion 331 of the lower head 330 of the main heat exchanger 300 is disposed on one end side, and the duct portion 461 of the fan case 460 of the regeneration air fan 450 is connected to the other end side.

As shown in FIGS. 4, 6A, and 6B, the dehumidification rotor 200 is rotatably disposed in the rotor arrangement portion 104 of the susceptor 101. The dehumidification rotor 200 is provided with a disk-shaped moisture absorbing material 201 made of a mesh ceramic honeycomb bonded with zeolite or silica gel. The moisture absorbing material 201 is held by a frame member 202 made of resin. As shown in Figure 6B, the box is most clearly revealed. The member 202 is provided with a shaft branch portion 203 located at the center of the moisture absorbing material 201, and an outer frame portion 204 located on the outer circumference of the moisture absorbing material 201. The shaft support portion 203 and the outer frame portion 204 are attached to one surface side (the outer panel 110B side) of the moisture absorbing material 201, and are connected by a line frame 205 extending in a radial shape.

The shaft branch portion 203 is rotatably supported by a shaft portion 264 of the heater unit 240 fixed to the base 101. A gear portion (gear portion) 204a is formed in the outer frame portion 204. A gear (not shown) that is fixed to an output shaft of the electric motor 210 that is a driving means is engaged with the gear portion 204a. The dehumidification rotor 200 transmits power through the gear portion 204a by the driving of the electric motor 210, and rotates in a predetermined direction around the shaft portion 203.

As shown in FIGS. 7 and 9, the heater 250 is a three PTC (Positive Temperature Coefficient) heaters 251A to 251C having a function of adjusting the heating temperature in accordance with the ambient temperature. The heater 250 controls the ON/OFF state of the switching elements 259a and 259b by the microcomputer 800, and the output is switchable in three stages.

The PTC heaters 251A to 251C include a heat transfer member 252 on which a substrate (not shown) is disposed, and a plurality of fin-shaped fins 253 provided on both surfaces of the heat transfer member 252. The outer shape of the PTC heaters 251A to 251C including the heat transfer member 252 and the fins 253 has a rectangular shape in which the short side portions 254 and 254 and the long side portions 255 and 255 of each pair are formed. The PTC heaters 251A to 251C have the same length of the short side portion 254, the entire length of the long side portion 255, and the same output (capacitance). As best shown in FIG. 8, each of the PTC heaters 251A to 251C is disposed in the radial direction of the dehumidification rotor 200 so that the long side portions 255 and 255 of each other overlap each other.

Specifically, the first PTC heater 251A is disposed on the outermost side in the diameter direction of the dehumidification rotor 200. The first PTC heater 251A is disposed such that the pair of short side portions 254 and 254 intersect with the outer peripheral portion of the dehumidification rotor 200. Here, the outer peripheral portion of the dehumidifying rotor 200 is the outer peripheral edge of the moisture absorbing material 201 (the inner peripheral edge of the outer frame portion 204).

The second PTC heater 251B is disposed on the inner side in the radial direction of the dehumidification rotor 200 with respect to the first PTC heater 251A. The long side portion 255 of the second PTC heater 251B is disposed to face the long side portion 255 of the first PTC heater 251A. The pair of short side portions 254 and 254 of the second PTC heater 251B are disposed such that only one short side portion 254 intersects with the outer peripheral portion of the dehumidification rotor 200.

The third PTC heater 251C is disposed on the inner side in the radial direction of the dehumidification rotor 200 with respect to the second PTC heater 251B. The long side portion 255 of the third PTC heater 251C is disposed to face the long side portion 255 of the second PTC heater 251B. The pair of short side portions 254 and 254 of the third PTC heater 251C are disposed such that only one short side portion 254 intersects with the outer peripheral portion of the dehumidifying rotor 200. The short side portion 254 of the third PTC heater 251C that intersects with the outer peripheral portion of the dehumidification rotor 200 is on the same side as the short side portion 254 of the second PTC heater 251B that intersects the outer peripheral portion of the dehumidification rotor 200.

As shown in FIGS. 7 and 8, the PTC heaters 251A to 251C are provided with terminals 256A to 256D that protrude outward along the long side portion 255. The terminal 256A is connected to the first PTC heater 251A. The terminal 256B is connected to the common terminal of the first and second PTC heaters 251A and 251B. end The sub-256C is connected to the common terminal of the second and third PTC heaters 251B and 251C. The terminal 256D is connected to the third PTC heater 251C.

As shown in FIG. 7, the first and fourth terminals 256A and 256D are connected in series to the power source 258 via wires 257a and 257d. The first switching element 259a is interposed between the wires 257d connected to the terminal 256D. One end side of the lead wire 257b through which the second switching element 259b is placed is connected to the second terminal 256B. The other end side of the wire 257b is connected to the power supply 258 side of the first switching element 259a of the wire 257d. The third terminal 257C is connected to one end side of the wire 257c, and the other end side of the wire 257c is connected to the wire 257a.

In the heater 250 configured as described above, the first switching element 259a is turned on, the second switching element 259b is turned off, and the first and second PTC heaters 251A and 251B are turned off, and the third PTC heater 251C is turned off. It becomes the ON state. This state is the weak (first output) setting in which the output of the heater 250 is the lowest in the present embodiment. In addition, when the first switching element 259a is turned off, the second switching element 259b is turned on, and the first and second PTC heaters 251A and 251B are turned on, and the third PTC heater 251C is turned off. This state is set in the middle (second output) in which the output of the heater 250 is higher than the first output in the present embodiment. Moreover, all of the PTC heaters 251A to 251C are turned on by turning the first and second switching elements 259a and 259b into an ON state. This state is the strong (third output) setting in which the output of the heater 250 is higher than the second output in the present embodiment.

At the time of the dehumidification process, the heater 250 is controlled by a microcomputer (not shown). When the microcomputer is operated with a strong setting from the state in which the heater 250 is stopped, first, after the operation is set to the weak setting, the output is raised to the strong setting. In this manner, the operation is not performed after the start of the operation of the heater 250, but the operation is started by the low output starting with the weak setting, and the output is raised to prevent the circuit breaker from interrupting the power due to the sudden insertion of the electric power. situation.

The heater 250 formed by the three PTC heaters 251A to 251C is attached to the susceptor 101 via the heater unit 240 so that the dehumidification rotor 200 is placed in the state shown in FIG. As shown in FIG. 6A and FIG. 11, the heater unit 240 is fixed so as to cover a part of the upper side portion of the dehumidification rotor 200 including the first ventilation portion 105a of the susceptor 101. As shown in FIGS. 9 to 10B, the heater unit 240 includes a heater case 260 which is an exterior body, a holding member 270 that positions and holds the PTC heaters 251A to 251C, and a positioning in which the holding member 270 is positioned in the heater case 260. Board 280. A metal plate 106 is disposed on the upper surface side of the base portion 102 of the susceptor 101, and the heater unit 240 is located at an upper portion of the metal plate 106.

As shown in FIGS. 7 and 10A, the heater case 260 includes a closing wall 261a that extends in parallel with the dehumidification rotor 200. The front end side of the peripheral wall 261b which protrudes from the outer peripheral part of the blocking wall 261a toward the dehumidification rotor 200 is the opening 262. That is, the blocking wall 261a is located on the opposite side with respect to the opening 262 of the heater case 260. The opening 262 covers the shape of the first vent portion 105a of the susceptor 101 and the heating region set by the dehumidification rotor 200. The front end of the peripheral wall 261b defining the opening 262 is provided outwardly A protruding fixing plate portion 263. The fixed plate portion 263 is provided with a shaft portion 264 that rotatably supports the frame member 202 of the dehumidification rotor 200.

As shown in FIGS. 7 and 9, the opening 262 of the heater case 260 is partitioned by the introduction portion 265 into which the regeneration air is introduced by the arrangement of the holding member 270 and the positioning plate 280, and the heater arrangement for sending the heated regeneration air. Part 266. The introduction unit 265 is connected to the first ventilation unit 105a and flows into the regeneration air from the regeneration air fan 450. The heater arrangement portion 266 corresponds to a part (heating region) of the dehumidification rotor 200 and flows out of the regeneration air. When the heater arrangement portion 266 is viewed from the facing direction, the PTC heaters 251A to 251C are exposed. When the PTC heaters 251A to 251C operate, the dehumidification rotor 200 located after the heater arrangement portion 266 in the air blowing direction of the regeneration air is heated.

As shown in FIGS. 10A and 10B, the holding member 270 seals a ceramic frame that is shaped other than the region of the introduction portion 265 of the opening 262 of the heater case 260. The holding member 270 is provided with a continuous arrangement hole 271 in which the PTC heaters 251A to 251C are disposed in a state of being displaced along the long side portion 255 as described above. The arrangement hole 271 is provided with a first locking portion 272 that locks the end portion (corner side) 253a of the PTC heaters 251A to 251C. The PTC heaters 251A to 251C are locked by the first locking portion 272, and are prevented from falling off the blocking wall 261a side of the heater case 260.

The holding member 270 is provided on the upper side (the introduction portion 265 side) of the arrangement hole 271, and includes an opening side support portion 273 located at the opening 262 of the heater case 260 (on the same surface as the fixed plate portion 263). On the side of the closing wall 261a of the holding member 270, the two sides of the arrangement hole 271 are provided. The plate-shaped blocking side support portions 274 and 274 that abut against the closing wall 261a in a state of being assembled in the heater case 260 are provided. The closing side support portions 274 and 274 form (ensure) a gap portion 267 that communicates with the introduction portion 265 and the heater arrangement portion 266 between the closing wall 261a of the heater case 260 and the holding member 270. The blocking side support portion 274 is partially located in the arrangement hole 271 and constitutes the first locking portion 272 described above. In other words, the first locking portion 272 prevents the PTC heaters 251A to 251C from coming off the gap portion 267 side by locking the end portions 253a on the side of the gap portion 267 of the PTC heaters 251A to 251C.

The holding member 270 includes locking members 276 and 276 disposed on one side of the opening side 262 side of the heater case 260. The locking member 276 is provided with a projection 277 corresponding to the screw hole 275 of the holding member 270. The locking members 276 and 276 are disposed on both sides of the arrangement hole 271, and are fixed to the holding member 270 by screwing. In the state of being assembled in the heater case 260, the locking member 276 is located on the same surface as the opening 262 (fixing plate portion 263) of the heater case 260. The locking member 276 includes a second locking portion 278 that locks the end portion (the other corner of the corner portion) 253b of the PTC heaters 251A to 251C. The second locking portion 278 prevents the PTC heaters 251A to 251C from coming off the opening 262 side by locking the end portions 253b on the opening 262 side of the PTC heaters 251A to 251C.

As shown in FIGS. 7 and 9, the positioning plate 280 is fixed to the opening 262 of the heater case 260 by screwing, and prevents the holding member 270 in which the PTC heaters 251A to 251C are disposed from coming off the opening 262 of the heater case 260. The positioning plate 280 is formed as a fixing plate portion 263 from the heater case 260. One side is extended in an arc shape on the other side of the fixing plate portion 263 of the heater case 260 by the opening side support portion 273 of the holding member 270. The introduction portion 265 is defined by the upper edge 281 of the positioning plate 280 and the inner edge of the opening 262 of the heater case 260. The heater arrangement portion 266 is defined by the lower edge 282 of the positioning plate 280 and the inner edge of the opening 262 of the heater cartridge 260.

As shown in FIGS. 4 and 11, in the heater cartridge 260, the regeneration air flows into the gap portion 267 between the closing wall 261a and the heater 250 (holding member 270) through the introduction portion 265. After that, the reconditioning air collides with the closing wall 261a and rotates in the opposite direction (the opening 262 side), is heated by the heater 250 of the heater arranging portion 266, and then flows toward the dehumidifying rotor 200.

As shown in FIGS. 4, 6A and 6B, the main heat exchanger 300 is made of resin and includes a plurality of tubes 310, an upper head 320, and a lower head 330. Each tube 310 passes through the interior of the regeneration air, and the process air passes between the adjacent tubes 310, 310, that is, the outside. The upper and lower regions of the tubes 310 and 310 are the main heat exchangers, and the main heat exchangers are disposed at the lower portion of the heater unit 240. The upper head 320 is connected to the upper end of each tube 310. The upper head 320 includes a duct portion 321 that is connected to the second ventilation portion 105b. The lower head 330 is connected to the lower end of each tube 310. The lower head 330 includes a duct portion 331 that is connected to the third ventilation portion 105c.

As shown in FIGS. 4, 6A and 6B, the sub heat exchanger 350 is made of resin and includes a plurality of tubes 360, an upper head 370, and a lower head 380. Each tube 360 is regenerative air passing through the interior, and the process air passes through the abutment The tubes 360 and 360 are external. The upper and lower regions of the tubes 360 and 360 are sub-heat exchangers, and the sub-heat exchangers are disposed at the lower portion of the heater unit 240. The upper head 370 is coupled to the upper end of each tube 360. As best shown in FIG. 6A, the upper head 370 is provided with an inflow port 371 through which the regeneration air heated by the heater 250 flows through the dehumidification rotor 200. The inflow port 371 is disposed at the opposing position of the heater arrangement portion 266 while holding the dehumidification rotor 200. Referring to FIGS. 6A and 7 , the inflow port 371 is formed in a line symmetrical relationship with the heater arrangement portion 266 . The lower head 380 is coupled to the lower end of each tube 360. As is clear from FIG. 6B, the lower head 380 includes a duct portion 381 that is open on the side opposite to the dehumidification rotor 200 (on the side of the exterior panel 110B).

As shown in FIG. 4, the process air fan 400 is disposed on the downstream side in the direction in which the process air of the sub-heat exchanger 350 flows (the outer panel 110B side). The processing air fan 400 is a multi-blade fan that sucks air from the axial direction of the rotating shaft and sends air toward the outside in the radial direction. The process air fan 400 is rotatably disposed inside the fan case 410.

As shown in FIG. 4, the regeneration air fan 450 is disposed on the side of the exterior panel 110B of the process air fan 400. The regenerative air fan 450 uses the same multi-blade fan as the process air fan 400. The regeneration air fan 450 is rotatably disposed inside the fan case 460. The fan case 460 is provided with duct portions 461 and 462 which are paired with the flow of the reconditioning air. The first duct portion 461 is connected to the third vent portion 105c of the susceptor 101, and communicates the fan case 460 with the main heat exchanger 300. The second duct portion 462 is connected The fan case 460 is connected to the heater case 260 in the first vent portion 105a of the susceptor 101. As shown in FIG. 3B, the duct portions 461 and 462 extend to the diagonal of the standing wall portion 103 of the susceptor 101 as viewed in the axial direction of the dehumidifying rotor 200.

As shown in FIG. 4, the process air fan 400 and the regeneration air fan 450 are rotated by a two-axis motor 490. The two-axis motor 490 is disposed between the fan case 410 of the process air fan 400 and the fan case 460 of the regeneration air fan 450. The two-shaft motor 490 is held between the fan cases 410, 460 by screwing the fixed fan cases 410, 460 to each other.

As shown in FIG. 3B, the duct member 500 is disposed on the outer panel 110B side of the fan case 460. The duct member 500 is provided at one end on the lower right side in FIG. 3A, and includes a first connecting portion 501 connected to the duct portion 381 of the sub heat exchanger 350. Further, the duct member 500 is provided at the other end on the upper right side in FIG. 3B, and is provided with a second connecting portion 502 that is connected to the upper head 320 of the main heat exchanger 300 via the second vent portion 105b of the susceptor 101. As shown in FIG. 3B, the duct member 500 extends from the opposite direction of the duct portions 461 and 462 of the fan case 460 to the opposite corner of the upright wall portion 103 of the base 101 as viewed in the axial direction of the dehumidification rotor 200.

When the dehumidifier 1 is operated, as described above, the air in the room is taken in from the suction port 112 to the inside by the driving of the process air fan 400. The treatment air absorbs moisture from the dehumidification rotor 200 and is discharged from the air outlet 642 to the inside of the room. Further, the air in the regeneration air path 3 is heated by the heater 250 by the drive of the regeneration air fan 450, and the heated regeneration air is recovered when passing through the dehumidification rotor 200 (the dehumidification rotor 200 is placed Moisture) Dehumidifies the moisture adsorbed by the rotor 200. Next, cooling is performed by heat exchange with the process air by the sub heat exchanger 350, and moisture is released by coagulation. Thereafter, the duct member 500 is further cooled by heat exchange with the process air by the main heat exchanger 300, and moisture is released by condensation.

In order to improve the dehumidification efficiency of the dehumidifier 1, it is important to adsorb the moisture of the treatment air by the dehumidification rotor 200 with high efficiency, and to recover the moisture of the dehumidification rotor 200 with high efficiency by the regeneration air. Then, the improvement of the adsorption efficiency by the dehumidification rotor 200 and the improvement of the recovery efficiency by the regeneration air are focused on the high efficiency lifting of the dehumidification rotor 200 and the regeneration air by the heater 250.

In the present embodiment, the first PTC heater 251A located outside the diameter direction of the dehumidification rotor 200 is disposed such that each of the short side portions 254 and 254 intersects with the outer peripheral portion of the dehumidification rotor 200. Therefore, the dehumidification rotor 200 can be heated to the outer peripheral portion. In addition, the PTC heaters 251B and 251C located on the inner side in the radial direction of the first PTC heater 251A are disposed such that one short side portion 254 intersects with the outer peripheral portion of the dehumidification rotor 200. Therefore, the dehumidification rotor 200 can be heated similarly. The outer perimeter. Therefore, the dehumidification rotor 200 can be heated efficiently, and the regeneration air is efficiently heated before the passage of the dehumidification rotor 200.

Further, in the heater unit 240 that houses the PTC heaters 251A to 251C, the reconditioning air is introduced from the introduction portion 265, and is rotated in the gap portion 267 by colliding with the blocking wall 261a, and the PTC heater in the heater arrangement portion 266 is used. 251A~251C heating, supplied to the dehumidification rotor 200 sides. At this time, the regeneration air is diffused by the collision with the blocking wall 261a and the rotation in the gap portion 267, and the distribution of the flow velocity is made uniform, and the PTC heaters 251A to 251C can be heated without unevenness.

As a result, the dehumidification rotor 200 can efficiently adsorb the moisture contained in the treatment air, and the moisture adsorbed by the dehumidification rotor 200 can be efficiently recovered by the regeneration air, so that the dehumidification efficiency can be improved. The PTC heaters 251A to 251C are disposed on the upstream side in the direction in which the treatment air flows by the dehumidification rotor 200, and the process air and the regeneration air are passed in the same direction with respect to the dehumidification rotor 200, so that the regeneration air can be raised even in this viewpoint. The efficiency of water recovery. Specifically, when the process air passes from one surface side to the other surface side of the dehumidification rotor 200, the moisture contained in the process air is often adsorbed by one side of the dehumidification rotor 200. Therefore, by the dehumidification rotor 200, the heated regeneration air is passed in the same direction as the process air, and the recovery efficiency of the moisture adsorbed by the dehumidification rotor 200 can be improved.

Further, since the portions of the PTC heaters 251A to 251C that protrude outward from the dehumidification rotor 200 are only one apex of the short side portion 254, the state of the heating unnecessary region can be minimized. Further, since the PTC heaters 251A to 251C have a rectangular shape and are of a simple structure, it is possible to prevent an increase in cost. Further, since the PTC heaters 251A to 251C use the same specifications, it is possible to prevent an increase in cost.

Further, the heaters 250 formed by the PTC heaters 251A to 251C are integrated as the heater unit 240, and the dehumidification rotor 200 is integrally assembled, so that assembly workability can be improved. Also, the heater unit 240 In the state in which the holding member 270 having the stepped arrangement hole 271 and the locking member 276 are held between the heater case 260, the state can be maintained without being detached and assembled.

Further, the dehumidifier 1 of the present invention is not limited to the structure of the above embodiment, and various modifications can be made.

For example, in the above-described embodiment, the PTC heaters 251B and 251C located on the inner side in the radial direction of the first PTC heater 251A are arranged such that the short side portion 254 on the left side and the outer side portion of the dehumidification rotor 200 intersect with each other. As shown in FIG. 12, the short side portions 254 and 254 on the left and right sides may be arranged to intersect the outer peripheral portion of the dehumidification rotor 200. Further, in the above-described embodiment, the PTC heaters 251A to 251C of the same specifications are used. However, as shown in FIG. 13, the rectangular PTC heaters 251A to 251C having different overall lengths are used, and all the short side portions 254 and the dehumidification rotor 200 are used. It is also possible to arrange the outer circumference of the intersection.

In the above-described embodiment, three PTC heaters 251A to 251C are disposed in the dehumidification rotor 200. However, two PTC heaters may be disposed, and four or more PTC heaters 251 may be disposed. Then, at least the pair of short side portions 254 are disposed so as to intersect the outer peripheral portion of the dehumidifying rotor 200 with respect to the first PTC heater 251A whose outer side of the dehumidifying rotor 200 is located in the radial direction.

In the dehumidifier 1 of the present embodiment, for example, the moisture of the clothes for drying clothes is used as a target for dehumidification, and the indoor air for drying indoors is also used as a target for dehumidification, and both of them are achieved. In other words, the dehumidifier 1 of the present invention includes a dehumidification pair Like the clothes and dry dryer in the room.

101‧‧‧Base

103‧‧‧立立部

104‧‧‧Rotor Configuration Department

105a‧‧ venting department

105b‧‧‧ Ventilation Department

200‧‧‧Dehumidification rotor

201‧‧‧Hydraulic materials

202‧‧‧Box components

203‧‧‧Axis branch

204‧‧‧Outer frame

204a‧‧‧ Gear Department

250‧‧‧heater

251A~251C‧‧‧PTC heater

252‧‧‧ Heat transfer components

254‧‧‧ Short side

255‧‧‧Longside

256A~256D‧‧‧ terminal

Claims (7)

A dehumidifier comprising: a process air path having a suction port and a blow port; a regeneration air path formed by a closed path; and a disk-shaped dehumidification rotor spanning the process air path and the regeneration air path Rotatably disposed to adsorb moisture from the process air passing through the processing air path, and to release the moisture adsorbed by the regeneration air passing through the regeneration air path; and the heating means is disposed on one side of the dehumidification rotor The regeneration air and the dehumidification rotor are heated in the regeneration air passage; the heating means includes first and second PTC heaters having a pair of short side portions and long side portions; and the first PTC The heater is disposed such that a short side portion of the pair intersects with an outer peripheral portion of the dehumidification rotor, and the second PTC heater faces the long side portion of the first PTC heater In the first PTC heater, the first PTC heater is arranged side by side in the radial direction inner side of the dehumidification rotor. The dehumidifier according to claim 1, wherein the first and second PTC heaters have the same length of the long side portion, and the second PTC heater has one of the short sides. The outer peripheral portions of the dehumidification rotor are arranged to intersect each other. A dehumidifier as recited in claim 1 or 2, wherein The heater unit includes: the first and second PTC heaters are integrally attached to one surface side of the dehumidification rotor; and the heater unit has a heater case having an open end and an opening disposed in the heater case On the side, a holding member that positions and holds the first and second PTC heaters, and a positioning plate that is disposed on the opening side of the heater case and that positions the holding member in the heater case. The dehumidifier according to the third aspect of the invention, wherein the heater unit is provided with an introduction portion for introducing the reconditioning air on an opening side of the heater cartridge, and the storage member is disposed by the holding member The heater arrangement portion of the first and second PTC heaters is provided with a gap communicating with the introduction portion and the heater arrangement portion between the blocking wall on the opposite side of the opening of the heater cartridge and the holding member. unit. The dehumidifier according to the fourth aspect of the invention, wherein the holding member has a continuous arrangement of the first and second PTC heaters, and the gap portion of the PTC heater is locked. a first locking portion at the end of the side; a locking member is disposed on an opening side of the heater case of the holding member, and an end portion of the PTC heater on the opening side is a second locking portion of the locking member The card is locked. The dehumidifier according to any one of the preceding claims, wherein the PTC heater is disposed in the foregoing dehumidification rotor The upstream side of the direction in which the air flows. The dehumidifier according to claim 3, wherein the PTC heater is disposed on an upstream side in a direction in which the processing air flows in the dehumidification rotor.