JP5919471B2 - Dehumidifier - Google Patents

Description

  The present invention relates to a dehumidifying device for dehumidifying indoor air.

  A main body case having an intake port and an exhaust port, a dehumidification rotor provided in the main body case and having a moisture absorption portion and a moisture release portion, a rotating means for rotating the dehumidification rotor, and an intake port of the main body case First air blowing means for exhausting the air through the moisture absorption part of the dehumidification rotor by the first air passage and then exhausting the air out of the main body case from the exhaust port; and a regeneration air passage provided in the main body case; The regeneration air passage includes a moisture release portion of the dehumidification rotor, a heater unit provided on the windward side of the moisture release portion, a heat exchanger provided on the leeward side of the moisture release portion, and the regeneration The second air blowing means for circulating the air in the air passage is provided, the air amount of the regenerating air passage is adjusted based on the change in the first air blowing amount, and the humidity on the windward side and the leeward side of the dehumidifying rotor is adjusted. Adjusting the amount of heating from the heater unit Is known that is characterized in that.

JP 54-105841 A

  The problem with such a conventional dehumidifying device is that the amount of heat from the heater unit is reduced too much in a low humidity indoor environment, and the heat load on the dehumidifying rotor cannot be kept constant.

  That is, conventionally, control is performed so that the regeneration air is heated to a temperature corresponding to the dehumidification amount dehumidified from the windward humidity to the leeward humidity by the dehumidifying rotor. Accordingly, the humidity on the leeward side is low in a low-humidity indoor environment, and it is not necessary to heat the regenerative air. Therefore, the output of the heater unit is reduced and the surface temperature of the dehumidifying rotor may be lowered. Thus, if the surface temperature of the dehumidification rotor is too low, organic substances may adhere to the dehumidification rotor and the dehumidification performance may be reduced.

  Therefore, an object of the present invention is to make the heat load to the dehumidification rotor constant by detecting a change in the amount of heat from the heater unit in all operating modes and in all temperature and humidity environments.

In order to achieve this object, the present invention provides a main body case having an intake port and an exhaust port, a dehumidification rotor provided in the main body case and having a moisture absorption part and a moisture release part, and the dehumidification rotor. Rotating means for rotating, and first air blowing means for exhausting the air sucked from the air intake port of the main body case to the outside of the main body case from the exhaust port after passing through the moisture absorbing portion of the dehumidifying rotor by the first air passage. And a regeneration air passage provided in the main body case. The regeneration air passage includes a moisture release portion of the dehumidification rotor, a heater unit provided on the windward side of the moisture release portion, and the moisture release air. A heat exchanger provided on the leeward side of the part and a second air blowing means for circulating the air in the regeneration air path, wherein the heater unit includes a heater part that generates heat, and a bowl-shaped heater that covers the heater part This cover is formed from The air volume of the regenerative air passage is adjusted by the detection value of the temperature detecting means provided in the cover section, the dehumidification rotor is rotated by the rotating means around a shaft portion extending in the horizontal direction, and the heater cover portion is the dehumidifying fan-shaped bowl shape extending upward from the shaft portion of the rotor, prior Symbol temperature detecting means fixed, provided on the upper central portion of the heater cover, the heater unit, the heater coil by the heater fixing part The heater fixing portion includes a plurality of first fixing portions that directly fix the heater coil, and a second fixing portion that is a pentagon that fixes the plurality of first fixing portions radially, One of the pentagonal corners of the second fixing portion is opposed to the center of the upper surface of the heater cover portion, and the center portion of the upper surface of the heater cover portion is at a position closest to the heater portion. It was characterized by And than, thereby it is to achieve the intended purpose.

According to the present invention, a main body case having an intake port and an exhaust port, a dehumidification rotor provided in the main body case and having a moisture absorption portion and a moisture release portion, a rotating means for rotating the dehumidification rotor, and the main body A first air blowing means for exhausting the air sucked from the air inlet of the case through the moisture absorbing portion of the dehumidifying rotor through the first air passage and out of the main body case from the exhaust port; and provided in the main body case A regenerative air passage, and the regenerative air passage includes a moisture release portion of the dehumidification rotor, a heater unit provided on the windward side of the moisture release portion, and heat provided on the leeward side of the moisture release portion. The heater unit has a heater part that generates heat and a bowl-shaped heater cover part that covers the heater part, and the second air blowing unit that circulates air in the regeneration air passage. Temperature provided in the heater cover The amount of air in the regenerative air passage is adjusted by the detection value of the output means, the dehumidification rotor is rotated by the rotation means around a shaft portion extending in the horizontal direction, and the heater cover portion is the shaft of the dehumidification rotor. in sector bowl shape extending upward from the part, before Symbol temperature detecting means is provided on the upper central portion of the heater cover, the heater unit, the heater coil is fixed by the heater fixing part, the heater fixing part A plurality of first fixing portions for directly fixing the heater coil, and a second fixing portion that is a pentagon that fixes the plurality of first fixing portions radially, One of the pentagonal corners is opposed to the center of the upper surface of the heater cover portion, and the center portion of the upper surface of the heater cover portion is at a position closest to the heater portion. is there.

That is, a temperature detection means is provided in the heater cover part, the change in temperature and humidity and the change in the amount of heat generated from the heater unit accompanying the change in the first air flow rate can be detected, and the temperature change in the heater part can be followed. The heat load on the dehumidification rotor can be made constant by adjusting the air flow rate of the regeneration air passage.

Schematic cross section of the dehumidifying device of the premise example Development view of the dehumidifier External perspective view showing the inside of the dehumidifier Perspective view of heater unit of the dehumidifier 1 is a schematic perspective view showing the inside of the dehumidifying device according to Embodiment 1 of the present invention. Perspective view of heater unit of the dehumidifier External perspective view showing the inside of the dehumidifying device of the reference example

( Assumption example )
An embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the dehumidifying device of this embodiment includes a main body case 1 having an intake port 2 and an exhaust port 3, and a dehumidification rotor having a moisture absorbing portion 5 and a moisture releasing portion 6 in the main body case 1. 4 and a regeneration air passage 7.

  The regeneration air passage 7 includes a moisture release portion 6 of the dehumidification rotor 4, a heater unit 8 that is a heating means provided on the windward side of the moisture release portion 6, and a regeneration chamber 9 provided on the leeward side of the moisture release portion 6. And a heat exchanger 10 provided on the leeward side of the regeneration chamber 9 and a second air blowing means 11 provided on the leeward side of the heat exchanger 10 for circulating the air in the regeneration air passage 7. is there.

  More specifically, in FIG. 1, the main body case 1 has an intake port 2 on the back side and an exhaust port 3 on the upper side, and a receiving tray 12 is provided below the front surface of the main body case 1 so as to be able to appear and retract. Yes. Further, a dehumidifying rotor 4 having a moisture absorbing part 5 and a moisture releasing part 6 is rotatably arranged in the main body case 1, and its rotational drive is performed by a motor 13 which is a driving means. .

  Further, in the front of the main body case 1, the indoor air sucked from the air inlet 2 of the main body case 1 passes through the hygroscopic portion 5 of the dehumidifying rotor 4 as in the first air passage shown by the arrow A in FIG. Thereafter, a first air blowing means 14 is provided for exhausting air from the exhaust port 3 to the outside of the main body case 1.

  The first air blowing means 14 is provided in the first casing 17 having a first suction port 15 on the back side, a first casing 17 having an upper first air outlet 16 shown in FIG. The first blade 18 and a first electric motor 19 that drives the first blade 18, and the room air that has passed through the moisture absorbing portion 5 of the dehumidifying rotor 4 is supplied from the first suction port 15 to the first air inlet 18. Flows into the casing 17, is pressurized by the first blade 18, and is exhausted out of the main body case via the first outlet 16 and the exhaust port 3.

  Further, as shown in FIG. 1, a regeneration air passage 7 is provided in the main body case 1, and the regeneration air passage 7 includes a moisture release portion 6 of the dehumidification rotor 4 and an upwind side of the moisture release portion 6. A heater unit 8 serving as a heat generating means provided in the regenerative chamber, a regeneration chamber 9 provided on the leeward side of the moisture release section 6, a heat exchanger 10 provided on the leeward side of the regeneration chamber 9, and the regeneration air passage 7 Second air blowing means 11 for circulating the air. Specifically, the second air blowing means 11 is located in the lower part of the dehumidifying rotor 4, and the air blown from the second air blowing means 11 is blown upward from the second air blowing means 11, and the second The air is blown to the heater unit 8 located above the air blowing means 11. From this heater unit 8, the air direction changes in the axial direction of the dehumidifying rotor 4, passes through the moisture releasing portion 6 of the dehumidifying rotor 4, and reaches the regeneration chamber 9. This air path returns from the regeneration chamber 9 to the second air blowing means 11 through the heat exchanger 10. The regeneration air passage 7 is independent as a ventilation passage in the main body case 1.

  Further, in the main body case 1, as indicated by an arrow B in FIG. 1, the indoor air sucked into the main body case 1 from the intake port 2 by the first air blowing means 14 is supplied to the heat exchanger 10 of the regeneration air passage 7. After the passage, an air passage for exhausting air from the exhaust port 3 to the outside of the main body case 1 is formed via the first air blowing means 14.

  However, the indoor air indicated by the arrow B is only exchanged with the air in the regenerative air passage 7 passing through the heat exchanger 10 through the heat conduction surface constituting the heat exchanger 10. There is no mixing in the vessel 10 part.

  Here, the operation of the regenerative air path 7 will be described. The air in the regenerative air path 7 heated by the heater unit 8 is sent to the moisture release unit 6 (the moisture absorption unit 5 of the dehumidifying rotor 4 rotates and this moisture release unit 6 is ), The moisture is released, and this high-temperature and excessively humid air is sent to the heat exchanger 10 on the further leeward side through the regeneration chamber 9 provided on the leeward side.

  As described above, since the indoor air is blown to the heat exchanger 10 by the first blowing means 14 as shown by the arrow B, the high-temperature and excessively humid air is cooled, thereby condensing. It is stored in the tray 12.

  The moisture absorbing portion 5 of the dehumidifying rotor 4 adsorbs moisture every time indoor air passes as indicated by an arrow A, and this becomes the above-described moisture releasing portion 6 by the rotation of the dehumidifying rotor 4 and becomes a regenerative air passage. Moisture is released into the interior 7, and the indoor air is dehumidified by such circulation.

  As shown in FIGS. 3 and 4, the feature of the present embodiment is that the heater unit 8, which is a heating means, includes a heater section 20 that generates heat, a heater fixing section 29 that fixes the heater section 20, and a substantially bay that covers the heater section 20. This is characterized in that the air volume of the regeneration air passage 7 is adjusted by the detection value of the temperature detection means 22 provided in the heater cover portion 21, which is formed from the heater cover portion 21 having a shape.

  Specifically, the heater section 20 that generates heat is configured by a heater coil 23 of a substantially bay-shaped nichrome wire, and the substantially bay-shaped heater cover section 21 and the heater coil 23 that cover the heater coil 23 are provided with a certain distance. It has a structure.

  The heater cover portion 21 has a fan-shaped bowl shape extending upward from the shaft portion of the dehumidifying rotor 4 made of metal. That is, the heater cover portion 21 has a fan-shaped first surface 33 that faces the moisture releasing portion 6 of the dehumidifying rotor 4, and a direction from the peripheral portion to the moisture releasing portion 6 of the dehumidifying rotor 4 on the first surface 33. That is, it is formed from a cylindrical portion 34 that extends in the axial direction of the dehumidifying rotor 4 and has a sector-shaped cross section. The cylindrical portion 34 includes a flat plate-shaped first plate portion 35 and a second plate portion 36 extending upward from the shaft portion of the dehumidifying rotor 4, and tips of the first plate portion 35 and the second plate portion 36. It forms from the 3rd board part 37 which the cross-sectional shape connected the part and circular arc shape. The first plate portion 35 is located downstream of the second plate portion 36 in the rotational direction of the dehumidifying rotor 4. The first plate portion 35 has a rectangular opening 38, and air blown out from the second air blowing means 11 enters the heater cover portion 21 through the opening 38, and the heater portion 20. The heated air flows to the moisture releasing portion 6 of the dehumidifying rotor 4.

  The temperature detection means 22 is formed by a temperature detection unit 26, a protection unit 27 that protects the temperature detection unit, and a fixing unit 28 that fixes the temperature detection unit 26 and the protection unit 27 to the heater cover unit 21.

  As an example, the temperature detection unit 26 is a heater thermistor that detects the relationship between resistance and temperature. This heater thermistor detects a high temperature abnormality when the resistance value exceeds a certain threshold value, and returns when the resistance value falls below the threshold value.

  As an example, the protection unit 27 is an insulating tube that covers the heater wire in a cylindrical shape. This prevents a short circuit between the temperature detection part and the heater cover part 21.

  The fixing portion 28 has a substantially U-shaped shape made of iron. The fixing portion 28 is fixed to the heater cover portion 21 with a screw.

  That is, the temperature detection unit 26 and the protection unit 27 are sandwiched and fixed between the heater cover unit 21 and the fixing unit 28.

  The temperature detection means 22 is provided on the surface of the heater cover portion 21 opposite to the heater coil, that is, the outer surface of the heater cover portion 21, and the temperature detection value becomes too high through the heater cover portion 21. The structure prevents this.

  That is, by providing the temperature detection means 22 on the outer surface of the heater cover portion 21, the temperature change of the heater portion 20 that generates heat can be accurately detected, and the change in the heater coil 23 and the change in the radiant heat of the heater portion 20 due to deterioration over time can also be detected. Corresponding temperature detection is possible. Further, the relationship between the temperature change of the heater unit 20 and the heat load on the dehumidifying rotor 4 is that the heater unit 20 is on the upstream side of the regeneration air passage 7 with respect to the dehumidifying rotor 4, and further, the heater unit 20 and the dehumidifying rotor 4 Because the distance is close, it is easily affected by heat. Therefore, the detection of the temperature change of the heater unit 20 can be approximated to the detection of the temperature change of the dehumidifying rotor 4.

  Further, the relationship between the air volume of the regeneration air path 7 and the temperature of the dehumidifying rotor 4 is that the air volume from the heater section 20 to the dehumidifying rotor 4 increases as the air volume of the regeneration air path 7 increases, and the influence of the radiant heat from the heater section 20 increases. Since it becomes small, the temperature of the dehumidification rotor 4 tends to fall.

  Therefore, the thermal load from the heater unit 20 of the dehumidification rotor 4 can be made constant by detecting the temperature change of the heater unit 20 and controlling the air volume of the regeneration air passage 7 accordingly.

  As a method for controlling the air volume of the regenerative air passage 7, there are means for adjusting the output of the second air blowing means using a resistor, and means for adjusting the output of the second air blowing means using a capacitor.

  Further, the dehumidification rotor 4 is rotated by a motor 13 which is a rotating means around a shaft portion extending in the horizontal direction, and the heater cover portion 21 has a fan-shaped bowl shape extending upward from the shaft portion of the dehumidification rotor 4, and detects temperature. The means 22 is configured on the upper surface of the heater cover portion 21.

  That is, since the air blown from the second air blowing means 11 proceeds in the upper surface direction of the heater cover portion 21, the structure is easily affected by the heat from the heater portion 20. Therefore, it can cope with each operation mode and voltage fluctuation.

(Embodiment 1 )
Embodiment 1 of the present invention will be described below with reference to the accompanying drawings. Constituent elements similar to those of the premise example are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 5, the difference from the first embodiment is that the temperature detecting means 22 is configured at the center of the upper surface of the heater cover portion 21, that is, at the center of the outer surface of the arc surface of the third plate portion 37. is there.

  Specifically, in FIG. 6, the heater unit 8 serving as a heat generating means includes a heater section 20 that generates heat, a heater fixing section 29 that fixes the heater section 20, and a substantially bay-shaped heater cover section that covers the heater section 20. 21.

  The heater section 20 that generates heat is constituted by a heater coil 23 of a substantially bay-shaped nichrome wire, and the heater coil 23 is fixed by a heater fixing section 29.

  The heater fixing portion 29 includes a plurality of first fixing portions 30 that directly fix the heater coil 23 and a second fixing portion 32 that is a pentagon that radially fixes the plurality of first fixing portions 30. The first fixing portion 30 has a horizontally long rectangular flat plate shape, and has a plurality of keyhole-shaped cutout portions 31 on one long side thereof, and the cutout portions 31 directly fix a plurality of heater coils 23. The 2nd fixing | fixed part 32 fixes both the short sides of the 1st fixing | fixed part 30, and arrange | positions the some 1st fixing | fixed part 30 radially. By arrange | positioning in this way, the heater coil 23 fixed to the notch part 31 of the some 1st fixing | fixed part 30 can be made into circular arc shape.

  The heater cover portion 21 has a fan-shaped bowl shape extending upward from the shaft portion of the dehumidifying rotor 4. When viewed in the axial direction, the side peripheral surface of the heater cover portion 21 has a quadrangular shape with one side having an arc shape. The second fixed portion has a pentagonal frame shape when viewed in the axial direction.

  Here, the three sides of the second fixing portion 32 are positioned in parallel with the three sides of the side peripheral surface of the fan-shaped heater cover portion 21 and the center of the arc-shaped surface that is the upper surface of the heater cover portion 21. Opposing to the second fixing portion 32, one of the pentagonal corners is located.

That is, the second fixing part 32 facing the center side of the circular arc shape which is the upper surface of the heater cover section 21 is one of the pentagonal corner. The central portion of the upper surface of the heater cover portion 21 is at a position closest to the heater portion 20 that generates heat, and can follow the temperature change of the heater portion 20.

  In FIG. 6, the heater unit 20 is formed of a first heater unit 24 and a second heater unit 25. The first heater unit 24 is located opposite to the moisture release unit 6 of the dehumidification rotor 4, and the second heater unit 25 is located between the first heater unit 24 and the moisture release unit 6, and the temperature The detecting means 22 is provided on the dehumidifying rotor 4 side of the heater cover portion 21 at the center of the upper surface of the heater cover portion 21. That is, in other words, at the center of the outer surface of the arc surface of the third plate portion 37, the third plate portion 37 is further located on the dehumidifying rotor 4 side.

  Dehumidifying operation will be described. As the dehumidifying operation, there are three types of operation modes with different amounts of dehumidifying air: strong, standard, and weak. These operation modes, strong, normal, and weak, have the strongest air volume, followed by the standard air volume, and the weakest.

  Here, when the operation mode is strong, both the first heater unit 24 and the second heater unit 25 output, and the maximum output operation is performed. On the other hand, when the operation mode is normal or weak, only the first heater unit 24 outputs. Accordingly, only the second heater section 25 outputs in any operation mode, and the temperature detection means 22 follows the temperature change of the heater section 20 by being provided on the dehumidifying rotor 4 side of the heater cover section 21. It is something that can be done. Further, the same effect can be obtained from the fact that the dehumidifying rotor 4 side is located on the leeward side of the regeneration air passage 7 and is easily affected by the heat from the heater unit 20.

  In addition, adjusting the air volume of the regeneration air passage 7 based on the detection value of the temperature detection means 22 provided in the heater cover portion 21 provides a lower limit side threshold for the detection value even in a low humidity state. The heat load can be made constant.

  That is, by detecting the temperature change around the heater cover portion 21, the heat load of the dehumidifying rotor 4 can be made constant in any environment. Thereby, the improvement of the durability of the dehumidification rotor 4 can be expected.

( Reference example )
Reference examples of the present invention will be described below with reference to the accompanying drawings. Constituent elements similar to those of the premise example are denoted by the same reference numerals, and detailed description thereof is omitted. In FIG. 7, the difference from the premise example is that the temperature detecting means 22 is provided on the leeward side surface of the heater cover portion 21, that is, on the outer surface of the second plate portion 36.

  The second air blowing means 11 is located below the dehumidifying rotor 4, and the air blown from the second air blowing means 11 is blown upward from the second air blowing means 11, The air is blown to the heater unit 8 located at the top. From this heater unit 8, the air direction changes in the axial direction of the dehumidifying rotor 4, passes through the moisture releasing portion 6 of the dehumidifying rotor 4, and reaches the regeneration chamber 9. Here, the dehumidifying rotor 4 rotates in the direction from the heater unit 8 to the second blowing means 11.

  That is, by providing it upstream with respect to the rotational direction of the dehumidification rotor 4, it becomes easy to be influenced by the amount of moisture in the dehumidification rotor 4, and the temperature of the dehumidification rotor 4 can be followed especially when the humidity is low and low. Therefore, by following the temperature change of the dehumidifying rotor 4 and controlling the air volume of the regeneration air passage 7 accordingly, the heat load from the heater section 20 of the dehumidifying rotor 4 can be made constant.

  According to the present invention, a main body case having an intake port and an exhaust port, a dehumidification rotor provided in the main body case and having a moisture absorption portion and a moisture release portion, a rotating means for rotating the dehumidification rotor, and the main body A first air blowing means for exhausting the air sucked from the air inlet of the case through the moisture absorbing portion of the dehumidifying rotor through the first air passage and out of the main body case from the exhaust port; and provided in the main body case A regenerative air passage, and the regenerative air passage includes a moisture release portion of the dehumidification rotor, a heater unit provided on the windward side of the moisture release portion, and heat provided on the leeward side of the moisture release portion. The heater unit has a heater part that generates heat, and a substantially saddle-shaped heater cover part that covers the heater part; The temperature provided in the heater cover The detection value of the detection means, in which is characterized in that to adjust the air volume of the playback air passage.

  That is, by providing a temperature detection means in the heater cover part, detecting a change in the amount of heat generated from the heater unit due to a change in temperature and humidity and a change in the first air flow rate, and adjusting the air flow rate in the regeneration air path, The heat load on the dehumidifying rotor can be made constant.

  If the regeneration air is controlled to be overheated to a temperature suitable for the dehumidification amount dehumidified from the windward humidity to the leeward humidity by the dehumidification rotor, dehumidification is achieved by adjusting the output of the heater unit in various temperature and humidity environments excluding low humidity. The heat load on the rotor can be made constant.

  Therefore, utilization as a dehumidifier for home use or office use is useful.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Intake port 3 Exhaust port 4 Dehumidification rotor 5 Moisture absorption part 6 Moisture release part 7 Regenerative air path 8 Heater unit 9 Regeneration chamber 10 Heat exchanger 11 2nd ventilation means 12 Sauce tray 13 Motor 14 1st ventilation means 15 1st suction port 16 1st blower outlet 17 1st casing 18 1st blade | wing 19 1st electric motor 20 heater part 21 heater cover part 22 temperature detection means 23 heater coil 24 1st heater part 25 2nd Heater part 26 Temperature detection part 27 Protection part 28 Fixing part 29 Heater fixing part 30 First fixing part 31 Notch part 32 Second fixing part 33 First surface 34 Tube part 35 First plate part 36 Second plate Part 37 Third plate part 38 Opening

Claims (1)

A main body case having an intake port and an exhaust port, a dehumidification rotor provided in the main body case and having a moisture absorption portion and a moisture release portion, a rotating means for rotating the dehumidification rotor, and an intake port of the main body case First air blowing means for exhausting the air out of the main body case from the exhaust port after passing through the moisture absorbing portion of the dehumidification rotor by the first air passage, and a regeneration air path provided in the main body case; The regeneration air passage includes a moisture release portion of the dehumidification rotor, a heater unit provided on the windward side of the moisture release portion, a heat exchanger provided on the leeward side of the moisture release portion, and the regeneration A second air blowing means for circulating the air in the air passage, and the heater unit is formed of a heater portion that generates heat and a bowl-shaped heater cover portion that covers the heater portion, and is provided in the heater cover portion. Temperature detection means The air volume of the regeneration air passage is adjusted according to the value, the dehumidifying rotor is rotated by the rotating means around a shaft portion extending in the horizontal direction, and the heater cover portion is upward from the shaft portion of the dehumidifying rotor. in sector bowl shape extending, before Symbol temperature detecting means is provided on the upper central portion of the heater cover, the heater unit, the heater coil is fixed by the heater fixing part, the heater fixing part, the heater coil A plurality of first fixing portions for directly fixing the plurality of first fixing portions and a second fixing portion that is a pentagon for fixing the plurality of first fixing portions radially, and the pentagonal corner of the second fixing portion. One of them is opposed to the center of the upper surface of the heater cover portion, and the center portion of the upper surface of the heater cover portion is at a position closest to the heater portion.

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