WO2022190447A1 - 除湿機 - Google Patents
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- Publication number
- WO2022190447A1 WO2022190447A1 PCT/JP2021/037673 JP2021037673W WO2022190447A1 WO 2022190447 A1 WO2022190447 A1 WO 2022190447A1 JP 2021037673 W JP2021037673 W JP 2021037673W WO 2022190447 A1 WO2022190447 A1 WO 2022190447A1
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- WIPO (PCT)
- Prior art keywords
- airflow
- air passage
- air
- dehumidifier
- filter
- Prior art date
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- 230000007613 environmental effect Effects 0.000 claims abstract description 24
- 238000007791 dehumidification Methods 0.000 claims abstract description 21
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/80—Self-contained air purifiers
Definitions
- the present disclosure relates to dehumidifiers.
- a dehumidifier is described in Patent Document 1.
- This dehumidifier has an air cleaning function, and the user can select either an operation that emphasizes the air cleaning effect or an operation that emphasizes the dehumidifying effect.
- the dehumidifier shown in this patent document 1 dehumidifies the air sucked from the air intake through a heat exchanger.
- the filter is arranged so as not to cover a portion of the front side of the heat exchanger, that is, the upstream side of the air flow when viewed from the heat exchanger.
- a shutter capable of blocking the air flow is provided in the portion where the filter does not cover the front side of the heat exchanger. The shutter is provided selectively between a position that partially covers the passage to the heat exchanger and a position that does not cover the passage.
- Patent Document 1 apart from the configuration in which the shutter is manually opened and closed, a configuration in which a humidity sensor is provided and the shutter is opened and closed according to humidity is disclosed.
- the air cleaning operation cannot be selectively and efficiently operated.
- An object of the present disclosure is to provide a dehumidifier capable of selectively and efficiently operating dehumidifying operation and air cleaning operation.
- the dehumidifier according to the present disclosure is a housing in which an inlet and an outlet are formed; a blowing means for generating an airflow from the suction port to the blowout port; air cleaning means disposed inside the housing; a dehumidifying means disposed inside the housing for removing moisture in the airflow;
- a dehumidifier comprising a first air passage formed inside the housing, through which the air flow passes through the air purification means and reaches the dehumidification means; a second air passage formed inside the housing, wherein the air flow reaches the dehumidifying means without passing through the air cleaning means; airflow restricting means for restricting the flow of the airflow in the second air passage; a compressor that supplies refrigerant to the dehumidifying means; a control device that controls the air blowing means, the airflow restricting means, and the compressor; has The control device is characterized by controlling the airflow restricting means according to at least one of environmental information and surrounding information.
- the dehumidifying operation can be performed by guiding the dehumidifying air to the second air passage. Therefore, the pressure loss can be reduced and the operation noise can be reduced as compared with the case where the dehumidification operation is performed using only the first air passage. Furthermore, since the control device controls the airflow in the second air passage according to at least one of the environmental information and the ambient information, the dehumidifying operation and the air cleaning operation can be performed efficiently.
- FIG. 1 is a front view of a dehumidifier according to Embodiment 1;
- FIG. 1 is a vertical cross-sectional view of the dehumidifier of Embodiment 1.
- FIG. 1 is a horizontal sectional view of the dehumidifier of Embodiment 1.
- FIG. 4 is a cross-sectional view showing an enlarged part of FIG. 3;
- FIG. FIG. 4 is the same cross-sectional view as FIG. 3 with additional dimensions;
- FIG. 6 is a cross-sectional view of the same position as FIG. 5 , in which the main parts are virtually separated and the dimensions of each part are clarified.
- 1 is a simplified perspective view of an evaporator;
- FIG. 4 is a perspective view explaining the sizes of both the HEPA filter and the activated carbon filter that constitute the air cleaning means.
- FIG. 2 is a dimensional explanatory diagram of a suction port portion when the dehumidifier of Embodiment 1 is viewed from the front side; 4A and 4B are schematic diagrams for explaining the operation of the airflow restricting means of the first embodiment;
- FIG. 2 is a block diagram showing main control-related components of the dehumidifier of Embodiment 1;
- FIG. 4 is a flow chart showing operation steps during dehumidification operation of the dehumidifier of Embodiment 1; 4 is a flow chart showing operation steps during air cleaning operation of the dehumidifier of Embodiment 1.
- FIG. 1 is a dimensional explanatory diagram of a suction port portion when the dehumidifier of Embodiment 1 is viewed from the front side; 4A and 4B are schematic diagrams for explaining the operation of the airflow restricting means of the first embodiment;
- FIG. 4 is a flow chart showing operation steps during dehumidifying air cleaning operation of the dehumidifier of Embodiment 1.
- FIG. 4 is a flow chart showing basic operation steps of the main controller at the start of operation of the dehumidifier of Embodiment 1;
- FIG. 2 is a vertical cross-sectional view showing air flow in the dehumidifier of Embodiment 1;
- FIG. 4 is a horizontal cross-sectional view showing the flow of air during dehumidifying operation of the dehumidifier of Embodiment 1;
- FIG. 4 is a horizontal cross-sectional view showing the flow of air during the air cleaning operation of the dehumidifier of Embodiment 1;
- FIG. 4 is a flow chart showing operation steps during dehumidifying air cleaning operation of the dehumidifier of Embodiment 1.
- FIG. 10 is a vertical cross-sectional view showing air flow during dehumidifying operation of the dehumidifier of Embodiment 2;
- FIG. 10 is a vertical cross-sectional view showing the air flow during the air cleaning operation of the dehumidifier of Embodiment 2;
- FIG. 11 is a partially simplified perspective view of a dehumidifier according to Embodiment 3;
- FIG. 22 is an exploded cross-sectional view of the front case portion of the dehumidifier of FIG. 21 taken along line CC.
- FIG. 22 is a front view of a suction port frame used in the dehumidifier of FIG. 21;
- FIG. 22 is a longitudinal (perpendicular) cross-sectional view of the dehumidifier shown in FIG.
- FIG. 21 is a block diagram showing main control-related parts of the dehumidifier shown in FIG. 21;
- FIG. FIG. 11 is a longitudinal (perpendicular) cross-sectional view of the dehumidifier of Embodiment 4 at the left-right central portion;
- Embodiment 1. 1 to 20 show the dehumidifier of Embodiment 1.
- FIG. The size and position of the structure of the dehumidifier may differ between the illustrated example and the actual one. Also, for convenience of explanation, some parts may be appropriately omitted from the description in each drawing.
- FIG. 1 is a front view of the dehumidifier 1 of Embodiment 1.
- FIG. FIG. 2 is a longitudinal sectional view of the dehumidifier 1 of Embodiment 1.
- FIG. FIG. 2 is a cross-sectional view along line AA shown in FIG. 3 is a horizontal sectional view of the dehumidifier 1 of Embodiment 1.
- FIG. 3 is a horizontal sectional view taken along line BB shown in FIG. 4 is a cross-sectional view showing an enlarged part of FIG. 3.
- the dehumidifier 1 will be described based on a state in which the dehumidifier 1 is placed on a horizontal surface such as a floor surface.
- a horizontal surface such as a floor surface.
- the surface on which the suction port 11 exists is the front surface (front surface).
- the surface on which the suction port 11 is formed is the rear surface.
- a dehumidifier 1 includes a case 10 .
- the case 10 constitutes part of the housing 3 that forms the outer shell of the dehumidifier 1 .
- the housing 3 has a bottom plate 4 to which a plurality of wheels 20, which will be described later, are attached.
- a hollow box-shaped housing 3 is formed by the case 10 and the bottom plate 4 .
- Wheels (casters) 20 for moving the dehumidifier 1 may be arranged on the bottom plate 4 one by one at positions separated from each other in the front, rear, left, and right directions. A heavy object such as an electric compressor 6 to be described later is placed on the bottom plate 4 . For this reason, a metal plate having greater strength (rigidity) than the case 10 is used for the bottom plate 4 .
- the case 10 is assembled into a single box shape by connecting the ends of a plurality of thin metal plates with fasteners (not shown) such as screws.
- the case 10 is assembled into a single box shape by connecting a plurality of integrally molded members using a thermoplastic resin (plastic) material with fasteners (not shown) such as screws. It is.
- the case 10 has a rear case 10B and a front case 10F.
- the rear case 10B is a member that forms the rear portion of the case 10.
- the front case 10 ⁇ /b>F is a member that forms the front portion of the case 10 .
- the front case 10F is fixed to the rear case 10B by a fastener (not shown) such as a screw.
- a flat upper case 10U is connected to the upper ends of the rear case 10B and the front case 10F.
- the upper case 10U is composed of two parts, a front part 10UF and a rear part 10UB.
- the front portion 10UF and the rear portion 10UB face each other from the front and back and abut against each other to form one flat surface. This surface is the ceiling surface of the case 10 itself.
- a suction port 11 and a blowout port 12 are formed in the case 10 .
- the suction port 11 is an opening for taking in air from the outside of the case 10 to the inside.
- the air outlet 12 is an opening for blowing air from the inside of the case 10 to the outside.
- the suction port 11 is formed in the shape of a square window in the central portion of the front case 10F.
- the air outlet 12 is formed in the ceiling surface portion of the case 10 .
- the air outlet 12 is opened by opening the entire rear portion 10UB of the upper case 10U upward to a certain angle with the front end as a fulcrum, as shown in FIG.
- the suction port 11 has a square shape when the housing 3 is viewed from the front, as shown in FIG.
- the suction port 11 may be rectangular or circular.
- a square window formed in the front case 10F of the housing 3 may be used as it is. You can use it as
- the dehumidifier 1 includes a suction port cover 11A that covers the suction port 11.
- the suction port cover 11A is formed, for example, in a lattice shape. Alternatively, the suction port cover 11A may be a fine shutter (louver shape) as a whole.
- the suction port cover 11 ⁇ /b>A prevents foreign matter from entering the case 10 through the suction port 11 .
- the suction port cover 11A is detachably fixed to the rear case 10B, for example, by fixing tools such as screws.
- a "net” is attached to the entire surface of the suction port cover 11A to prevent foreign matter from entering.
- the suction port cover 11A may be integrally molded from a plastic material.
- the suction port cover 11 ⁇ /b>A can prevent, for example, large foreign matters (waste paper, waste fibers of clothes, etc.) from entering the housing 3 .
- the suction port cover 11A has a small pressure loss and a poor effect of purifying fine particles and the like, and is not a kind of air purifying means to be described later.
- the “air cleaner” in this embodiment is the activated carbon filter 42 and the HEPA filter 41 .
- reference numeral 11A1 denotes a vertical bar that constitutes the suction port cover 11A.
- reference numeral 11A2 denotes a horizontal beam that constitutes the suction port cover 11A.
- reference numeral 6 is an electric compressor.
- the electric compressor 6 may be of any type such as a reciprocating type or a rotary type.
- the electric compressor 6 has a motor (not shown), and refrigerant is supplied to a refrigerant pipe (also referred to as a "refrigerant circuit") 22 connected to an evaporator 31 and a condenser 32, which will be described later. forced to circulate. That is, the electric compressor 6 compresses and supplies the refrigerant to a refrigeration cycle configured by connecting the evaporator 31, the condenser 32, and the like with the refrigerant pipe 22. As shown in FIG.
- the motor (not shown) of the electric compressor 6 can change the number of revolutions per unit time according to power supplied from the drive circuit 27, which will be described later. If the rotational speed changes, the coolant supply capacity can be changed, and the cooling capacity can be increased or decreased (adjusted).
- Main controller 18 designates a drive frequency for drive circuit 27 and controls the rotation speed of a motor (not shown) of electric compressor 6 .
- reference numeral 7 is a water storage tank. Drain water generated on the outer surface of the evaporator 31 due to the dehumidification operation is directly dropped and led to the water storage tank 7 . Alternatively, the drain water is guided into this water storage tank 7 by a guide plate like a gutter. Note that the water storage tank 7 can be taken out of the housing 3 through an outlet (not shown) formed on the side surface of the rear case 10B or case 10B. The outlet is covered with an openable door (not shown) except when the water storage tank 7 is taken out.
- the dehumidifier 1 has louvers 13 .
- the louver 13 is composed of only one piece on the rear portion 10UB of the upper case 10U as described above.
- the louver 13 may be configured by several plate-like members.
- the louver 13 is for adjusting the direction in which the air is sent out from the blower outlet 12 .
- the louver 13 is arranged near the outlet 12 so as to be openable and closable.
- the attitude of the louver 13 is changed by a connected louver drive motor (not shown).
- a louver driving motor (not shown) changes the angle of inclination of the louver 13 with respect to the outlet 12 in several steps or more. This makes it possible to adjust the direction of the air (airflow AF) blown out from the outlet 12 .
- the operation of the louver drive motor (not shown) is controlled by a drive signal from a control board (not shown).
- the control board (not shown) is accommodated in a board box 16 made of a metal plate or a nonflammable heat-resistant plastic case.
- the dehumidifier 1 includes an operation notification unit 15.
- the operation notification unit 15 is composed of an input operation unit 17 (see FIG. 11) for the user to operate the dehumidifier 1 and a notification unit 23 (see FIG. 11).
- the notification unit 23 displays the state of the dehumidifier 1 and the like to the user with visible information such as characters. In addition, the notification unit 23 can also notify by voice.
- An operation display board 8 for controlling the operation notification unit 15 is arranged inside the case 10 facing the operation notification unit 15 .
- An operation switch for starting/stopping operation of the dehumidifier 1 is arranged on the operation display board 8 .
- the operation display board 8 may be composed of two or more of an operation board 8A on which circuit parts of the input operation section 17 (to be described later) are mounted, and a display board 8B on which circuit parts related to the display section 23D are mounted. .
- the operation display board 8 has an operation mode switching switch 17S (Fig. 11).
- the operation display board 8 has a notification section 23 (see FIG. 11) and an input operation section 17, respectively.
- a liquid crystal display section 23D capable of displaying information is arranged below the front portion 10UF (upper wall surface) of the upper case 10U in the operation notification section 15.
- FIG. The display information on the display portion 23D is displayed above the upper case 10U through the front portion 10UF.
- the operating conditions, operating state, etc. of the dehumidifier 1 are displayed outside the housing 3 via the display section 23D of the operation notification section 15 .
- the operation display board 8 is arranged horizontally near the inner ceiling of the front case 10F.
- a power supply board (not shown) and a board box 16 containing one or several control boards are arranged.
- a fan 21 (rotary blade) is provided at the rear inside the case 10 as a means of sending air.
- the fan 21 is a device that draws air into the case 10 and sends the drawn air to the outside of the case 10 .
- the fan 21 rotates to generate an airflow AF directed from the suction port 11 to the blowout port 12 in the air path from the suction port 11 to the blowout port 12 .
- a motor 21A is housed inside the case 10.
- a motor 21A is a device that rotates the fan 21 .
- the fan 21 and the motor 21A are arranged in the rear part of the housing 3 . That is, it is arranged on the back side of the dehumidifier 1 .
- the motor 21A is connected to the center of rotation of the fan 21 via a rotating shaft 21b extending horizontally.
- the rotating operation of the motor 21A is controlled by a drive circuit 28 (see FIG. 11), which will be described later. In other words, the drive circuit 28 controls the start and stop of rotation and the rotation speed of the motor 21A.
- the fan 21 is a sirocco fan (multi-blade fan), and the center of rotation is fixed by a rotating shaft 21B.
- the fan 21 draws air from the front into a fan case 36 to be described later, and blows the air out from the outlet 12 .
- the fan case 36 surrounds the fan 21 and the motor 21a.
- a bell mouth portion 37 is formed at a position corresponding to the fan 21 on the wall surface on the front side of the fan case 36 .
- the bell mouth portion 37 is a large circular opening, and the rim portion is greatly curved to the leeward side.
- the bell mouth portion 37 smoothly sucks in the airflow that has passed through the condenser 32 .
- the dehumidifier 1 includes an evaporator 31, a condenser 32, an electric compressor 6, and a decompression device (not shown) as an example of dehumidifying means for removing moisture contained in the air.
- the evaporator 31 and the condenser 32 form a refrigerant circuit together with the electric compressor 6 and a pressure reducing device (not shown).
- the evaporator 31 , condenser 32 , electric compressor 6 and decompression device (not shown) are housed inside the case 10 .
- the evaporator 31 and the condenser 32 are installed vertically so as to block the front side of the bell mouth portion 37 as shown in FIG.
- the electric compressor 6 is installed at the bottom of the case 10 as indicated by the dashed line in FIG.
- reference numeral 38 denotes a plate-like straightening member, which is entirely made of, for example, a thermoplastic material.
- the rectifying member 38 is formed with frames 38B intersecting in the vertical and horizontal directions, and between the frames 38B, a large number of ventilation windows 38A are formed. there is That is, each ventilation window 38A is an opening independent of each other.
- the ventilation windows 38A are regularly arranged in the horizontal and vertical directions over the entire straightening member 38 .
- the front, back, left and right surfaces of the frame 38B are flat guide surfaces with a constant length D5 (see FIG. 4) in order to allow the airflow AF to flow linearly.
- the length D5 is set to one dimension (eg, 12 mm) within a range of, for example, 10 mm to 15 mm.
- the aperture (opening area) of the ventilation window 38A is set uniformly over the entire rectifying member 38 .
- the straightening member 38 faces the front surface of the evaporator 31, which is part of the heat exchanger described later, with the first space 33 therebetween. That is, the straightening member 38 faces the evaporator 31 with a predetermined distance D3 (see FIGS. 5 and 6).
- this rectifying member 38 faces the back surface of an activated carbon filter 42, which is a part of an air purifying filter (air purifying means) to be described later, with a second space 34 interposed therebetween. That is, the rectifying member 38 faces the back surface of the activated carbon filter 42 with a predetermined distance D4.
- the evaporator 31, the electric compressor 6, the condenser 32, and the decompression device (not shown) are connected in order via refrigerant pipes (not shown). Refrigerant from the electric compressor 6 flows through a refrigerant circuit formed by the evaporator 31, the electric compressor, the condenser 32, and a decompression device (not shown).
- the evaporator 31 and the condenser 32 are heat exchangers for heat exchange between refrigerant and air.
- the electric compressor 6 illustrated in FIG. 1 is a device that compresses refrigerant.
- a decompression device (not shown) is a device for decompressing a refrigerant.
- a pressure reducing device (not shown) is, for example, an expansion valve or a capillary tube.
- the dehumidifier 1 also includes a HEPA filter 41 and an activated carbon filter 42, which are air cleaning filters for cleaning the air, as an example of air cleaning means for removing dust and odors in the air.
- the HEPA filter 41 and activated carbon filter 42 are housed inside the case 10 .
- the HEPA filter 41 and the activated carbon filter 42 are housed inside the front case 10F between the suction port 11 and the rectifying member 38 .
- the HEPA filter 41 is a filter that collects fine dust in the air.
- the activated carbon filter 42 is a filter that deodorizes odors in the air.
- the activated carbon filter 42 is arranged apart from the front surface of the rectifying member 38 by a predetermined distance D4 (the "second space 34" described later), as described above.
- the HEPA filter 41 and the activated carbon filter 42 can be inserted through the suction port 11 to the front position of the rectifying member 38 with the suction port cover 11A removed from the front case 10F.
- the HEPA filter 41 and the activated carbon filter 42 can be detachably installed inside the case 10 .
- the rectifying member 38 also serves as a protective member for preventing the user from touching the evaporator 31 when the HEPA filter 41 and the activated carbon filter 42 are removed from the rear case 10B. Therefore, even if the user's finger or the like is pressed from the front, the finger or the like does not touch the evaporator 31 .
- an air passage leading from the suction port 11 to the blowout port 12 is formed inside the case 10 .
- Airflow AF flowing inside the air passage flows from the suction port 11 through the suction port cover 11A, the HEPA filter 41, the activated carbon filter 42, the evaporator 31, the condenser 32, and the fan 21 in this order.
- a series of air passages are formed for the air entering from the suction port 11 to flow from the heat exchanger (evaporator 31, etc.) to the fan 21 through the air cleaning filters (HEPA filter 41 and activated carbon filter 42).
- the upstream side and the downstream side are defined by using the airflow AF flowing through the air path leading from the suction port 11 to the blowout port 12 .
- the side of the heat exchanger (the evaporator 31 or the like) on which the suction port 11 is located is defined as the upstream side.
- the side of the heat exchanger (the evaporator 31, etc.) on which the outlet 12 is located is defined as the downstream side.
- reference numeral 62 is a dust sensor.
- the dust sensor 62 is arranged at the top inside the case 10 .
- An opening 62 ⁇ /b>A (not shown) having a small diameter is provided in the case 10 in the vicinity of the dust sensor 62 so that the dust sensor 62 communicates with the outside of the case 10 .
- Dust detection information is acquired by the dust sensor 62 and the main controller 18, which will be described later, and the amount and concentration of dust in the indoor space where the dehumidifier 1 is installed can be measured.
- the dust sensor 62 has the ability to detect particles of 0.1 ⁇ m, for example.
- the detection result of the dust sensor 62 is acquired by the main controller 18, and the acquired dust detection information can be displayed on the display section 23D arranged on the operation display board 8.
- reference numeral 63 is the gas sensor 63.
- the gas sensor 63 is arranged inside the case 10 at a position below the suction port 11 .
- a small-diameter opening 63A (not shown) is provided in the wall surface of the case 10 near the gas sensor 63 for communicating the outside of the case 10 and the gas sensor 63 .
- Gas detection information is acquired by the gas sensor 63 and the main controller 18, and the odor of the indoor air can be measured.
- the measurement result of the gas sensor 63 is acquired by the main controller 18 , and the acquired gas detection information can be displayed on the display section 23 ⁇ /b>D arranged on the operation display board 8 .
- reference numeral 26 denotes a wireless communication unit (wireless communication module) housed near the ceiling inside the case 10 .
- the wireless communication unit 26 can wirelessly communicate with a local network facility such as a wireless router (not shown) installed in a home or office where the dehumidifier 1 is located.
- the wireless communication unit 26 may be connected to an Internet line (not shown) via local network equipment.
- the wireless communication unit 26 can exchange information with a remote information processing terminal such as a smartphone (not shown) and other communication devices through the Internet line.
- the local network equipment may be a command device that controls the total amount of electricity used in a home or office, or an integrated management device that collects and links information from a plurality of electrical devices. Also called a point.
- the rotating shaft 21B of the motor 21A extends horizontally.
- HL is a horizontal center line passing through the center of the rotating shaft 21B.
- the position of the center line HL is at the center of the suction port 11 in the vertical direction. That is, the rotary shaft 21B exists at a position half the height of the suction port 11 whose height dimension is H1.
- FIG. 3 On the left and right sides of the HEPA filter 41 and the activated carbon filter 42, there are bypass air passages 43 adjacent to each other.
- the bypass air passage 43 is a space provided over the entire area in the height direction of the suction port 11 inside the front case 10F.
- the bypass air passage 43 is an air passage extending rearward from the suction port 11, as shown in FIG. In other words, it is a narrow passage that extends from the front.
- reference numeral 46 denotes a wind tunnel extending rearward from the edge of the suction port 11 .
- the wind tunnel 46 is formed entirely from sheet metal members or thermoplastic members.
- a gap between the front end of the wind tunnel 46 and the left and right side surfaces of the HEPA filter 41 serves as an inlet 43A of the bypass air passage 43 .
- the rear end portion of the wind channel 46 contacts the outer peripheral end portion of the rectifying member 38 so that the airflow AF does not leak to the outside in the middle.
- a gap between the rear end of the wind tunnel 46 and the left and right side surfaces of the activated carbon filter 42 serves as an outlet 43B of the bypass air passage 43 .
- the air passages leading from the suction port 11 to the air outlet 12 are composed of the main air passage 44 and the bypass air passage 43 .
- a main air passage (also referred to as a “first air passage”) 44 is an air passage extending from the suction port 11 through the HEPA filter 41 and the activated carbon filter 42 to the straightening member 38 .
- a bypass air passage (also referred to as a “second air passage”) 43 is an air passage from the inlet 11 to the straightening member 38 without passing through the HEPA filter 41 and the activated carbon filter 42 .
- W5 is the frontage dimension of the suction port 11 . In other words, it is the width dimension. In this first embodiment, W5 is 315 mm.
- HL in FIG. 3 is a center line passing through the center of the rotating shaft 21B of the motor 21A, as shown in FIG.
- reference numeral 51 denotes airflow restricting means that opens and closes to restrict the flow of the bypass airflow AF2 by substantially opening and closing the inlet 43A of the bypass airflow path 43.
- the airflow restricting means 51 are arranged on the left and right sides of the suction port 11, respectively, and will be described in detail with reference to FIG.
- FIG. 4 is a cross-sectional view enlarging the E portion of FIG. 3 .
- the bypass air passage 43 is an air passage through which the airflow AF flows downstream without passing through the HEPA filter 41 and the activated carbon filter 42 .
- a main air passage 44 is an air passage through which the airflow AF passes through the HEPA filter 41 and the activated carbon filter 42 in contrast to the bypass air passage 43 .
- bypass air passages 43 are formed on the right and left sides of the HEPA filter 41 and the activated carbon filter 42, respectively. That is, the bypass air passage 43 and the main air passage 44 are arranged side by side in parallel in the front-rear direction.
- bypass airflow the airflow passing through the bypass airflow path 43
- main airflow the airflow passing through the main airflow path 44
- FIG. 4 by arranging a bypass air passage 43, which is an air passage that does not pass through the air cleaning filter, and a main air passage 44, which is an air passage that passes through the air cleaning filter, adjacent to each other, An air passage in the dehumidifier 1 can be configured compactly, and the dehumidifier 1 can be miniaturized.
- the height dimension in the vertical direction (vertical direction) of the bypass air passage 43 is set to be approximately the same as the length in the vertical direction (vertical direction) of the HEPA filter 41. is desirable.
- bypass airflow AF2 flowing through the bypass air passage 43 and the main airflow AF1 flowing through the main air passage 44 are separated from the space downstream of the activated carbon filter 42, that is, the first space 33 separated by a distance D3 starting from the rectifying member 38, and the rectifying member 38. With the member 38 as a starting point, they merge with the second space 34 having an interval of a distance D4.
- bypass airflow AF2 and the main airflow AF1 join before the evaporator 31 arranged downstream of the activated carbon filter 42, and then flow through one air passage inside the case 10.
- main airflow AF1 flowing through the main air passage 44 the main airflow AF1 that has passed through portions near the left and right ends of the activated carbon filter 42 passes through the left and right ends of the rectifying member 38 immediately after passing through the activated carbon filter 42. merges with the bypass airflow AF2.
- the first space 33 and the second space 34 are provided. Therefore, at least the first space 33 is sufficient. If the first space 33 cannot be sufficiently large, the second space 34 may be provided.
- the HEPA filter 41 and the activated carbon filter 42 which receive the air resistance when the main airflow AF1 passes through, move or bend downstream and come into contact with the straightening member 38. is preferably provided with a second space 34 .
- a wind guide surface 46A is formed on the downstream side of the bypass airflow AF2 in the wind tunnel 46 .
- the wind tunnel 46 is provided with a pair of left and right wind guide surfaces 46 ⁇ /b>A at positions connected to the rectifying member 38 .
- the wind guide surface 46A is symmetrically inclined (at the same angle) so as to approach the HEPA filter 41 and the activated carbon filter 42 when viewed in plan.
- the airflow guide surface 46A is for guiding the bypass airflow AF2 that has passed through the bypass airflow path 43 toward the center of the front surface on the windward side of the heat exchanger (evaporator 31, etc.).
- the side of the center line HL passing through the center of the rotation shaft 21B of the motor 21A has the function of slightly changing the traveling direction of the bypass airflow AF2.
- the wind guide surface 46A shown in FIG. 4 is composed of one flat inclined surface as a whole. By adjusting the normal direction (inclination angle) of this inclined surface, the direction in which the bypass airflow AF2 is guided can be adjusted. Since the air guide surface 46A is composed of a single surface with no irregularities in the middle, the bypass airflow AF2 has little resistance and does not generate unnecessary turbulence.
- the wind guide surface 46A may be configured with a curved surface. By adjusting the curvature of the curved surface, the spread of the bypass airflow AF2 guided by the air guide surface 46A can be adjusted. In this way, in a part of the second air passage (bypass air passage 43), on the windward side of the heat exchanger (the evaporator 31, etc.), the bypass airflow AF2 is directed in a predetermined direction (in FIG. 3, the center line HL direction) is provided, the bypass airflow AF2 passing through the bypass air passage 43 can efficiently flow into the heat exchanger, and the dehumidification efficiency can be improved.
- An airflow restricting means 51 is provided in the bypass air passage 43 .
- the airflow restricting means 51 has a plate-like flap or partition plate for opening and closing the inlet 43A of the bypass air passage 43, as shown in detail in FIG.
- This flap or partition plate is collectively referred to as a shutter 51S.
- the shutter 51S is arranged downstream of the inlet cover 11A. One end of the shutter 51S is supported by a rotary shaft 51E (see FIG. 10).
- the shutter 51S is fixed at an open position and a closed position by a driving motor 51B (see FIG. 10) serving as opening/closing means, and also maintains a stopped state at a specific position between the open position and the closed position.
- driven as The airflow limiting means 51 has a function of determining whether or not the bypass airflow AF2 flows through the bypass airflow path 43, and an adjusting function of increasing or decreasing the amount of the bypass airflow AF2 flowing through the bypass airflow path 43.
- FIG. 5 is the same cross-sectional view as FIG. 3 with additional dimensions.
- D1 indicates the thickness (depth dimension) of the condenser 32 in the front-rear direction, which is 51 mm.
- D2 indicates the thickness (depth dimension) of the evaporator 31 in the front-rear direction, and is 38 mm.
- this evaporator 31 two rows (two layers) of refrigerant pipes 22 are arranged in front and rear. Since the refrigerant pipes 22 are provided in two layers in this manner, the cooling capacity is higher than that in one layer.
- the evaporator 31 and the condenser 32 are not drawn in sizes proportional to their actual thicknesses, but are drawn in equivalent sizes in these figures. .
- the facing distance D4 is the facing interval (distance) between the activated carbon filter 42 and the rectifying member 38, which is 15 mm. It should be noted that the facing distance D4 does not always need to be completely the same over the entire rectifying member 38 . If the activated carbon filter 42 is partially curved downstream due to the passage of the airflow AF, the facing distance D4 may become slightly smaller at that portion.
- D3 is the facing distance (distance) between the straightening member 38 and the evaporator 31, which is 10 mm.
- a large number of thin metal plates 31F for heat exchange called plate fins are arranged at minute intervals (pitch) of 1 mm or less.
- Refrigerant piping 22 is arranged in.
- the facing distance D3 is the distance between the thin plate 31F and the straightening member 38. As shown in FIG.
- W1 is the substantial width dimension of the main air passage 44, which is the width dimension (frontage dimension) of the suction port 11, excluding the portion closed by the airflow restricting means 51, and is set to 255 mm.
- W5 is the width dimension (frontage dimension) of the suction port 11, and is set to 315 mm.
- FIG. 6 is a cross-sectional view of the same position as FIG. 5, in which the main parts are virtually separated and the dimensions of each part are clarified.
- W2 is the width dimension of the evaporator 31 and is set to 270 mm.
- W3 is the width dimension of the condenser 32 and is set to 270 mm.
- W4 is the aperture (diameter) of the opening of the bell mouth portion 37 and is set to 230 mm.
- BL is a horizontal reference line extending in the front-rear direction and passing through the center point (vertically and horizontally) of the opening of the bell mouth portion 37 .
- W6 is the width dimension of the window 47A of the rear wind tunnel 47 (see FIG. 4) surrounding the left and right of the straightening member 38, and is set to 270 mm.
- a rectifying member 38 is fitted in the window 47A.
- H2 is the height dimension of the window 47A of the rear wind tunnel 47; This height dimension H2 is 252 mm, the same as the height dimension H3 of the evaporator 31 .
- each of the condenser 32 and the evaporator 31 is 270 mm.
- the condenser 32 and the evaporator 31 are arranged close to each other in the front-rear direction, and appear to overlap at the same position when viewed from the front. Further, the width dimension W6A of the rectifying member 38 is also close to the dimension W6 of 270 mm because it fits into the window 47A.
- the three components of the rectifying member 38, the evaporator 31, and the condenser 32 are arranged in a line in the front-rear direction in line with the position of the window 47A of the rear wind tunnel 47. As shown in FIG.
- the three components of the rectifying member 38, the evaporator 31 and the condenser 32 are arranged in a line in the front-rear direction along the reference line BL.
- the straightening member 38, the evaporator 31, the condenser 32, and the bell mouth portion 37 are arranged so as to overlap on one straight line (reference line BL).
- both the HEPA filter 41 and the activated carbon filter 42 are in a positional relationship in which they overlap on a straight line on the reference line BL. Therefore, the airflow FA sucked from the suction port 11 flows linearly from front to back within a range centered on the reference line BL regardless of whether it passes through the bypass air passage 43 or the main air passage 44.
- the airflow resistance is small and the operating efficiency can be improved.
- the horizontal reference line BL is a straight line passing through the center point of the opening of the bellmouth portion 37, and at the same time, a straight line passing through the respective center points of the HEPA filter 41 and the activated carbon filter 42. But also. Therefore, the reference line BL is also called the center line of the air cleaning means (HEPA filter 41 and activated carbon filter 42).
- the reference line BL is at a position coinciding with the center line HL passing through the center of the rotation shaft 21B.
- the straightening member 38, the evaporator 31, the condenser 32, the HEPA filter 41 and the activated carbon filter 42 have their respective centers above the reference line BL.
- the HEPA filter 41 and the activated carbon filter 42 are arranged symmetrically with respect to the reference line BL.
- FIG. 7 is a simplified perspective view of the evaporator 31.
- FIG. FIG. 7 shows the relationship between the width dimension W6 and the like of the straightening member 38 and the evaporator 31.
- W2 is the width dimension of the evaporator 31, which is set to 270 mm as described above.
- the refrigerant pipe 22 penetrates through the inside of the evaporator 31 in two stages (two layers).
- the refrigerant pipe 22 extends through the evaporator 31 from a first predetermined position to a second predetermined position while meandering.
- Refrigerant pipe 22 protrudes partly in a curved shape as shown in FIG.
- the amount of protrusion L2 of the refrigerant pipe 22 shown in FIG. 7 is 14 mm on the right side of the evaporator 31 and 26 mm on the left side.
- a height dimension H3 of the evaporator 31 is 252 mm.
- the width dimension W6 of the window 47A of the rear wind tunnel 47 surrounding the right and left sides of the straightening member 38 is set to 270 mm as described above.
- OB is the center point (second center point) in the horizontal and vertical directions when the evaporator 31 is viewed from the front.
- CL1 is the horizontal centerline that horizontally crosses the second center point OB of the evaporator 31 .
- CV1 is the vertical centerline that vertically intersects the second center point OB of the evaporator 31;
- D2 is the depth dimension of the evaporator 31, which is 38 mm as described above.
- FIG. 8 is a perspective view for explaining the sizes of both the HEPA filter 41 and the activated carbon filter 42 that constitute the air cleaning means.
- the activated carbon filter 42 is composed of a filter main body 42A that exhibits functions of collecting dust and adsorbing odor components, and a frame 42B that protects the entire periphery of the filter main body 42A.
- the filter main body 42A itself is flexible, but by being integrated with the frame 42B, it is given a certain degree of rigidity, making it easier for the user to handle when performing replacement work.
- W8 is the width dimension of the frame 42B and is set to 255 mm. That is, the horizontal width W8 of the frame 42B is substantially the same as the horizontal width W1 (255 mm) of the main air passage 44, as described with reference to FIGS.
- H4 is the height dimension of the frame 42B and is set to 252 mm. That is, it is the same size as the (inner) height dimension H2 of the window 47A of the rear wind tunnel 47 described in FIG. Moreover, this height dimension H4 is the same size as the height dimension H3 of the evaporator 31 .
- D6 is the depth dimension of the frame 42B. In other words, it is the "thickness" when viewed from the left and right direction, and is set to one dimension (for example, 10 mm) from 5 mm to 15 mm. Note that the filter main body 42A has the same depth dimension as the frame 42B. The depth dimension of the activated carbon filter 42 is determined by the depth dimension D6 of the frame 42B. When the frame 42B is viewed from the front, the thickness of the frame 42B alone is about several millimeters.
- the HEPA filter 41 is composed of a filter body 41A that exhibits a dust collection function and a frame 41B that protects the entire periphery of the filter body 41A.
- the filter main body 41A itself is flexible, but by being integrated with the frame body 41B, a certain rigidity is imparted, which makes it easier for the user to handle when performing replacement work.
- W9 is the width dimension of the frame 41B and is set to 255 mm. That is, the horizontal width W9 of the frame 41B is substantially the same as the horizontal width W1 (255 mm) of the main air passage 44, as described with reference to FIGS.
- H5 is the height dimension of the frame 41B and is set to 252 mm. That is, it is the same size as the (inner) height dimension H2 of the window 47A of the rear wind tunnel 47 described in FIG. Moreover, this height dimension H5 is the same size as the height dimension H3 of the evaporator 31 .
- D7 is the depth dimension of the frame 41B. In other words, it is the “thickness” when viewed in the left-right direction, and is set to one dimension (eg, 30 mm) in the range of 20 mm to 40 mm. Note that the filter body 41A has the same depth dimension as the frame 41B. The depth dimension of the HEPA filter 41 is determined by the depth dimension D7 of the frame 41B. When the frame 41B is viewed from the front, the thickness of the frame 41B alone is about several millimeters.
- FIG. 9 is a dimension explanatory diagram of the suction port 11 portion when the dehumidifier 1 of Embodiment 1 is viewed from the front side.
- FIG. 9 is a front view of the same position as FIG. 1, but the sizes of the suction port 11 and the like are indicated by dashed frames in order to indicate the dimensional relationship.
- CL1 is a horizontal center line that crosses the center point (first center point) OA of the suction port 11 when the case 10 is viewed from the front.
- CV2 is a vertical center line passing through the center point (first center point) OA of the suction port 11 .
- H1 is the substantial maximum dimension in the height direction of the suction port 11, as described in FIG. 2, and is 270 mm.
- W1 is the substantial width dimension of the main air passage 44, as described with reference to FIGS. 5 and 6, and is set to 255 mm.
- W5 is the width dimension (frontage dimension) of the suction port 11, and is set to 315 mm.
- W7 is the lateral width of the inlet portions of the bypass air passages 43 provided on the left and right sides of the suction port 11, and is set to 30 mm.
- the position of the first center point OA in FIG. 9 and the position of the second center point OB in FIG. 7 are the same position that completely overlap when viewed from the front.
- the second center point OB is positioned on a horizontal straight line passing through the first center point OA from the front.
- FIG. 10A and 10B are schematic diagrams for explaining the operation of the airflow restricting means 51 of the first embodiment.
- One end of the flap-shaped or flat-plate-shaped shutter 51S is supported by a rotating shaft 51E of a motor 51B (for example, a stepping motor).
- the shutter 51S is in the "open position" OP laterally retracted from the bypass air passage 43 as indicated by the dashed line.
- the shutter 51S moves to a position (closing position CL) at which the bypass air passage 43 having a height H1 (270 mm) and a width W7 (30 mm) of the entrance 43A is closed. In other words, it maintains its closed state in the closed position CL when it has been moved to its maximum extent.
- the shutter 51S is not required to completely close the inlet 43A of the bypass air passage 43 in the closed position CL. Even if there is a minute gap around the shutter 51S at the closed position CL, it does not pose a problem in terms of the basic performance of the dehumidifier 1.
- a sealing member made of elastic silicon rubber material or the like may be provided at the entrance 43A, and the shutter 51S may be brought into close contact with the sealing member to improve airtightness when closed.
- reference numerals 51C and 51D are sensors that electrically detect that the shutter 51S is at the open position OP and the closed position CL.
- the sensors 51C and 51D are, for example, optical sensors such as infrared rays or magnetic detection sensors. Detection signals from these sensors 51C and 51D are input to the opening/closing detection unit 53, and finally input to the main controller 18, which will be described later, as opening/closing detection signals (see FIG. 11).
- FIG. 11 is a block diagram showing main control-related components of the dehumidifier 1 of Embodiment 1. As shown in FIG. Note that the sensors 51C and 51D described in FIG. 10 are omitted from the illustration.
- the main controller 18 has a function of controlling the dehumidifier 1 as a whole.
- the main controller 18 includes an electronic circuit board on which electronic components such as a drive circuit, a power supply circuit, and a sensor are mounted for controlling the operation of each part constituting the dehumidifier 1, and a microcomputer mounted on the electronic circuit board. It has a CPU (Central Processing Unit) 24 and storage devices such as ROM and RAM.
- the CPU 24 is provided with a timer section 24T for exhibiting a time measuring function such as operation time.
- the main controller 18 receives an input command signal corresponding to the operation of the input operation unit 17 and issues a command signal to the drive circuit (inverter circuit) 27 of the electric compressor 6 . Also, it issues a command signal to the drive circuit 28 to control the operation of the motor 21A of the fan 21 . Furthermore, the main controller 18 issues a command signal to the drive circuit 29 for controlling the airflow limiting means 51 .
- the main controller 18 issues respective command signals for transmitting and receiving information to the wireless communication unit 26 .
- a command signal to stop supplying power to the wireless communication unit 26 and a command signal to start supplying power to the wireless communication unit 26 are also issued.
- control data and “notification data” (these are described later) are acquired.
- the main controller 18 controls the drive circuit (inverter circuit) 27 and the drive circuit of the airflow limiting means 51. 29 respectively.
- the airflow limiting means 51 that receives the drive command from the drive circuit 29 includes a shutter 51S (see FIG. 10), a motor 51B, and the like.
- the input operation unit 17 has an operation mode changeover switch 17S.
- the notification unit 23 has a display unit 23D and a voice notification unit 23V.
- the main controller 18 controls data such as various "operation programs” and parameters used for controlling the dehumidifier 1 (hereinafter collectively referred to as “control data”), a display unit 23D and an audio notification unit 23V.
- notification data display data for display screen and data for audio notification
- operation program is also called a control program, it will be collectively called a "program” hereinafter.
- the main controller 18 serves as a host computer (main computer) that integrally controls the dehumidifier 1 as a whole.
- main computer main computer
- One or more microcomputers subordinate to the main controller 18 (“sub-controller” or “ (also referred to as “slave microcomputer”) may be further provided. Then, the sub-controller may be exclusively in charge of information processing and notification of the input operation, and drive control of the electric compressor 6 .
- Each circuit, part, and each component of the device shown in FIG. 11 is functionally conceptual, and does not necessarily have to be physically configured as shown. Functions of these circuits can be distributed and integrated, and specific forms are not limited to those shown in the drawings. All or part of each function can be configured by functionally or physically distributing and integrating them in arbitrary units according to functions, operating conditions, and the like.
- Each function of the timer unit 24T, the drive circuit 29, and the open/close detection unit 53 is realized by the processing circuit.
- a processing circuit that implements each function may be dedicated hardware, or may be one or more processors that execute a program stored in the storage means 25 .
- the detection data of various sensors such as the room temperature sensor 35, the dust sensor 62, the temperature sensor for monitoring the temperature of important parts of the dehumidifier 1 (for example, the electric compressor 6), and the gas sensor 63 are centrally collected.
- a dedicated processing unit may be provided to determine whether the operating state is appropriate or whether there is an abnormality, etc., and the determination signal from the processing unit may be input to the main controller 18.
- the processing unit may be dedicated hardware, or may be realized by a processor that executes a program stored in the storage means 25.
- each function of the main controller 18 is implemented by software, firmware, or a combination of software and firmware.
- Software and firmware are written as programs and stored in the storage means 25, which is a memory.
- a CPU (processor) 24 implements each function of the main controller 18 by reading and executing a program stored in the storage means 25 .
- the storage means 25 is typically non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, and EEPROM.
- part of the data and programs in the storage means 25 may be held in an external recording medium (such as a storage server) without being held by the dehumidifier 1 .
- the dehumidifier 1 accesses an external recording medium (storage server) via the wireless communication unit 26 by wireless communication or by wire, thereby obtaining necessary data and program information.
- the operation programs of the main control device 18, the input operation section 17, the notification section 23, etc. may be updated to be appropriately improved according to the wishes of the user or the manufacturer of the dehumidifier 1.
- the dehumidifier 1 may acquire the modified program through the wireless communication unit 26 .
- the dehumidifier 1 has a humidity sensor 61 (see FIG. 3).
- a humidity sensor 61 is arranged inside the case 10 .
- An opening (not shown) for communicating the humidity sensor 61 with the outside of the case 10 is provided in the vicinity of the humidity sensor 61 of the case 10 .
- Humidity detection information is acquired by the humidity sensor 61 and the main controller 18, and the indoor humidity can be measured.
- the measurement result of the humidity sensor 61 is displayed by the display section 23D that receives a display command from the main controller 18.
- reference numeral 19 denotes a power supply unit that receives AC power from the commercial power supply 40 and supplies power of a predetermined voltage to each part.
- This power supply unit 19 receives, for example, 200 V or 220 V, 50 Hz or 60 Hz power from the commercial power supply 40, converts it into AC power or DC power of a plurality of voltages such as 5 V, 15 V, 220 V, It is supplied to the drive circuit 27, the notification unit 23, the drive unit 29, and the like.
- the input operation unit 17 has a power switch operation button (not shown) that allows the user to open and close (ON-OFF) a main power switch (not shown) between the power supply unit 19 and the commercial power supply 40. It is
- reference numeral 13A denotes a drive circuit for opening and closing the louver 13 provided on the ceiling of the case 10
- reference numeral 13M denotes a motor that receives power from the drive circuit 13A and opens and closes the louver 13.
- Embodiment 1 the operation of the dehumidifier 1 of Embodiment 1 will be explained.
- Embodiment 1 several preset “operation modes” are stored in the storage means 25 of the main controller 18 .
- FIG. 12 is a flow chart showing operation steps during the dehumidifying operation of the dehumidifier 1 of the first embodiment.
- FIG. 13 is a flow chart showing operation steps during the air cleaning operation of the dehumidifier 1 of the first embodiment.
- FIG. 14 is a flow chart showing operation steps during the dehumidifying air cleaning operation of the dehumidifier 1 of Embodiment 1.
- the main controller 18 controls the drive motor (not shown) of the compressor 6 and the drive motors 13M and 21A of the louvers 13 to stop. That is, power is not supplied to the drive motor (not shown) of the compressor 6, the motor 13M and the motor 21A.
- louver 13 and the shutter 51S keep the outlet 12 and the inlet 43A of the bypass air passage 43 closed, respectively.
- the “dehumidifying operation mode” is an operation mode for dehumidifying the room.
- the operation of the dehumidifier 1 can be started by the user turning on the operation switch (main power switch) of the input operation unit 17 to activate the main controller 18 .
- the dehumidifier 1 starts dehumidifying operation through the steps shown below.
- the main controller 18 starts energizing the motor 13M for driving the louver so that the louver 13 opens the outlet 12, and controls the open position of the louver 13 (step S001).
- the motor 13M Since the motor 13M is, for example, a stepping motor, it rotates in a predetermined direction by a constant angle in response to the drive signal from the drive circuit 13A.
- the mechanical structure inside the motor 13M enables highly accurate positioning even under open loop control.
- the motor 13M moves at a step angle according to the number of pulses from the drive circuit 13A. This allows the louvers 13 to remain open to a specified angle (eg, 45 degrees, 60 degrees or 75 degrees).
- the main controller 18 issues a command signal to the drive circuit 29 so that the shutter 51S opens to the open position OP (see FIG. 10), applies drive power to the motor 51B, and controls the open position.
- a stepping motor for example, is used as the motor 51B, so that the shutter 51S rotates in a predetermined direction by a constant angle in response to the drive signal from the drive circuit 29. This pivoting action opens the inlet 43A of the bypass air passage 43 (step S002).
- the fact that the drive command is issued from the main controller 18 to the drive circuit 29 is also transmitted to the open/close detector 53 by a signal as indicated by the dashed arrow in FIG.
- the sensors 51C and 51D are activated from the time when the open/close detector 53 receives the signal.
- one sensor corresponding to the closed position CL detects that the shutter 51S changes from the "presence state” to the “non-existence state” at the predetermined position.
- the other sensor corresponding to the open position OP detects that the shutter 51S changes from the "non-existing state" to the "existing state” at the predetermined position. This allows the main controller 18 to determine that the shutter 51S has reliably opened the bypass air passage 43 .
- the shutter 51S rotates in a predetermined direction by a constant angle in response to the drive signal from the drive circuit 29. Therefore, the open/close detector 53 and the sensors 51C and 51D may be omitted.
- the opening and closing operation of the shutter 51S which is related to the basic function of the dehumidifier 1, is emphasized, and the opening and closing detection is performed so that safe operation can be performed even if there is some defect in the opening and closing of the shutter 51S.
- a portion 53 and sensors 51C and 51D are provided.
- the main controller 18 rotates the motor 21A and controls the fan 21 so that it rotates at a preset strong rotation speed (step S002). S003). It also controls to drive a drive motor (not shown) of the electric compressor 6 . This causes the electric compressor 6 to start compressing the refrigerant (step S004).
- the main controller 18 uses the humidity sensor 61 to grasp the humidity.
- the humidity sensor 61 starts detecting the humidity of the air around this humidity sensor 61 and transmits the detected data to the main controller 18 . Thereby, main controller 18 determines whether the humidity is 50% or higher (step S005). If the humidity is 50% or more, the driving operation of the motor for driving the electric compressor 6 is continued to perform the dehumidifying operation (S006), and after a certain period of time, the process returns to step S005.
- step S005 if it is determined in step S005 that the humidity is 50% or less, the main controller 18 controls to stop driving the motor for driving the electric compressor 6, and the refrigerant compression operation of the electric compressor 6 is stopped. Stop (step S007). At this time, the main controller 18 controls to continue the rotational driving operation of the motor 21A of the fan 21, and returns to step S005 after a certain period of time.
- the threshold value for humidity detection by the humidity sensor 61 is set to 50%, but the threshold value may be a value other than this.
- the “air cleaning operation mode” is an operation mode for cleaning indoor air.
- the dehumidifier 1 starts the air cleaning operation in the following steps.
- the main controller 18 sends a start signal to the drive circuit 13A so that the louver 13 opens the outlet 12, and starts the operation of the motor 13M for driving the louver. Then, the louver 13 is opened to a predetermined position (step S101).
- the main controller 18 rotates the motor 21A and controls the fan 21 to rotate at a preset high rotation speed (step S102).
- Main controller 18 issues measurement commands to dust sensor 62 and gas sensor 63 .
- the dust sensor 62 and the gas sensor 63 start detecting dust and gas in the air around the sensor, respectively, and send them to the main controller 18 .
- Main controller 18 determines the degree of air pollution from the acquired data (step 103).
- step S103 If it is determined in step S103 that the degree of contamination of the air is low, the main controller 18 rotates the fan 21, which is operating at a preset strong rotation, at a preset weak rotation speed. A command to change the rotation speed is issued to the drive circuit 28 so as to do so.
- the drive circuit 28 controls the motor 21A to reduce the number of revolutions per unit time (step S104), performs the air cleaning operation (weak) (step S105), and returns to step S103 after a certain period of time.
- step S103 determines that the degree of contamination of the air is high. If it is determined in step S103 that the degree of contamination of the air is high, the main controller 18 determines that the fan 21 is being operated at a high rotational speed from the stage of step S102. is performed (step S106). In other words, the command to change the rotation speed is not issued to the drive circuit 28, and the process returns to step S103 after a certain period of time.
- the operation mode of the dehumidifier 1 is switched to the dehumidifying operation mode, the air cleaning operation mode, or the like, depending on the indoor humidity and the state of air contamination.
- the dehumidifier 1 starts the dehumidified air cleaning operation as follows.
- the main controller 18 issues a drive command to the drive circuit 28, and controls the motor 13M for driving the louver so that the louver 13 opens the outlet 12 (step S201).
- the main controller 18 issues a drive command to the drive circuit 29 so as to open the shutter 51S, and controls the motor 51B for opening and closing the shutter 51S.
- the inlet 43A of the bypass air passage 43 is opened (step S202).
- the main controller 18 determines that the shutter 51S has been opened to a predetermined position, it issues a predetermined drive command to the drive circuit 28 to rotate the motor 21A.
- the drive circuit 28 controls the rotation speed of the motor 21A so that the fan 21 rotates at a preset high rotation speed (step S203).
- the main controller 18 also starts the operation of the motor 6M (not shown) for driving the electric compressor 6, and controls the motor 6M to be driven at a predetermined number of revolutions. As a result, the electric compressor 6 starts compressing the refrigerant (step S204).
- the humidity sensor 61 starts the operation of detecting the humidity of the air around the humidity sensor 61 and transmits the humidity detection data to the main controller 18.
- Main controller 18 determines whether the humidity is 50% or higher (step S205).
- step S206 When the humidity is 50% or more, the driving operation of the motor 6M (not shown) for driving the electric compressor 6 is continued.
- the dust sensor 62 and the gas sensor 63 start detecting dust and gas in the surrounding air of each sensor, and determine the degree of contamination of the air (step S206). When the degree of contamination of the air is small, the operations of steps S202, S203, and S204 are continued, and the dehumidifying operation is performed (step S207). After a certain period of time has passed from step S206, the process returns to step S205.
- the main controller 18 controls the motor 51B for driving the airflow limiting means 51 so as to close the shutter 51S. Then, the inlet 43A of the bypass air passage 43 is closed (step S208), the dehumidifying air-cleaning operation "strong" is performed (step S209), and after a certain period of time has elapsed from step S206, the process returns to step S205.
- step S205 if the humidity is 50% or less, the main controller 18 controls to stop driving the motor 6M for driving the electric compressor 6, and the refrigerant compression operation of the electric compressor 6 is stopped (step S210 ).
- main controller 18 controls dust sensor 62 and gas sensor 63 to start detecting dust and gas in the air surrounding each sensor, and determines the degree of air pollution (step S211).
- step S212 When the degree of contamination of the air is small, the motor 21A is controlled so that the fan 21 rotates at a preset weak rotation speed (step S212), and circulate operation is performed only by blowing air without dehumidification (step S213). ), and after a certain period of time, the process returns to step S205.
- the main controller 18 issues a closing command signal to the drive circuit 29 to close the shutter 51S.
- the drive circuit 29 starts driving the drive motor 51B to move the shutter 51S to the closed position CL.
- step S214 the inlet 43A of the bypass air passage 43 is closed (step S214).
- the fan 21 is maintained in the "strong operation” mode of step S203, and performs air cleaning operation "strong” (step S215).
- step S215 the process returns to step S205 in the dehumidifying operation mode of FIG.
- the humidity threshold of the humidity sensor 61 in step S205 was set to 50% as a criterion for switching to the dehumidifying operation mode or the air cleaning operation mode, the threshold value may be a value other than this.
- the air flow restricting means 51 for opening and closing the inlet 43A of the bypass air passage 43 is provided, air passages suitable for dehumidifying operation and air cleaning operation are provided for the bypass air passage 43 and the main air passage 44.
- a user-friendly dehumidifier 1 which can be easily selected from either is obtained.
- FIG. 15 is a flow chart showing basic operation steps of the main controller 18 when the operation of the dehumidifier 1 of Embodiment 1 is started.
- a main power switch (not shown) is turned on using the input operation unit 17, and the operation mode changeover switch 17S is operated.
- an operation mode such as "dehumidification operation” or "air cleaning operation” is selected.
- main controller 18 starts to be supplied with electric power from power source 19 .
- the main controller 18 checks whether there is any abnormality in its own internal configuration. Then, if there is no abnormality in the initial abnormality determination, a command signal for opening the louver 13 is issued to the drive circuit 13A (step S300).
- step S300 the louver 13 is rapidly rotated to a predetermined open position by the motor 13M.
- Main controller 18 also issues an open command signal for shutter 51S to drive circuit 29 .
- the timer unit 24T starts measuring the elapsed time from this point (step S301).
- the motor 51B of the airflow limiting means 51 is started to be driven by the drive circuit 29.
- the shutter 51S is rotated within a range of about 90 degrees about the shaft 51E to the open position OP by the motor 51B.
- the inlet 43A of the bypass air passage 43 is opened.
- step S302 the main controller 18 waits for arrival of an open detection signal from the open/close detector 53 and determines whether the inlet 43A of the bypass air passage 43 has been opened (step S302). If the determination result of step S302 is "Yes”, a command signal to start air blowing is issued to the drive circuit .
- the command for the blowing intensity in this case is "strong”, and the operation of the fan 21 is started in the "strong” operation mode determined by the rated blowing capacity (step S303).
- step S304 if the elapsed time from step S301 does not exceed the predetermined "reference response time” (for example, 10 seconds), the process returns to step S302 again, and the opening detection signal from the opening/closing detection unit 53 is returned. Based on the open/closed state is determined.
- the predetermined "reference response time” for example, 10 seconds
- step S304 if the elapsed time from step S301 exceeds the "reference response time" (for example, 10 seconds), it is determined that an abnormality has occurred in the airflow limiting means 51 for some reason, and the notification unit 23 indicates that the shutter 51S will not open. For example, in the display section 23D, it is notified by characters or a diagram. In addition, the voice notification unit 23V provides voice notification such as "the bypass air passage is not properly opened.” Then, after a certain period of time (for example, 30 seconds) has elapsed from the time of these notifications, the main power switch is automatically turned off, and the operation is automatically terminated (step S305).
- the "reference response time” for example, 10 seconds
- step S305 the notification unit 23 notifies that only the operation that does not use the bypass air passage 43 is performed.
- the power may be automatically cut off at
- FIG. 16 is a vertical cross-sectional view showing the air flow of the dehumidifier 1.
- FIG. 17 is a horizontal sectional view showing the air flow during the dehumidifying operation of the dehumidifier 1.
- FIG. 18 is a horizontal sectional view showing the air flow during the air cleaning operation of the dehumidifier 1.
- FIG. Arrows in FIGS. 17 and 18 indicate the flow of air (airflow AF) when the dehumidifier 1 is operating.
- the main air passage 44 has a larger air passage area when the dehumidifier 1 is viewed from the front.
- the projected area of the main air passage 44 when the dehumidifier 1 is viewed from the front is determined by the height H1 and the width W1. As described above, H1 is 270 mm and W1 is 255 mm, so the product of the two is the projected area.
- the width W7 of the bypass air passage 43 is 30 mm (see FIG. 9). Moreover, the height dimension H1 of the bypass air passage 43 is 270 mm. That is, the projected area of one bypass air passage 43 is determined by the product of the height dimension H1 and the width W7 (30 mm).
- the HEPA filter 41 and the activated carbon filter 42 having a certain thickness or more are arranged in the main air passage 44, the pressure loss is greater when the airflow AF passes through the main air passage 44. Therefore, the amount of bypass airflow FA2 passing through bypass air passage 43 is greater than the amount of main airflow FA1 passing through main air passage 44 .
- the airflow (main airflow AF1) that has passed through the HEPA filter 41 and the activated carbon filter 42 merges with the bypass airflow AF2 that has passed through the bypass air passage 43 near the straightening member 38.
- the bypass airflow AF2 is the airflow that reaches the vicinity of the rectifying member 38 without passing through the HEPA filter 41 and the activated carbon filter 42 .
- the bypass air passage 43 has a wind guide surface 46 ⁇ /b>A leading toward the center of the evaporator 31 in a wind tunnel 46 forming a part thereof. Therefore, the airflow AF1 that has flowed straight through the bypass air passage 43 from the front is on the windward side of the evaporator 31, which is a part of the heat exchanger, on the center line HL (FIGS. 2 and 3) passing through the center of the rotation shaft 21b ) change direction.
- the airflow AF1 changes course in the direction of a horizontal reference line BL extending in the front-rear direction and passing through the center point of the opening of the bell mouth portion 37 (see FIG. 4).
- the bypass airflow AF2 that has passed through the bypass air passage 43 and the main airflow AF1 that has passed through the left and right peripheral portions of the main air passage 44 are mixed near the rectifying member 38 and flow into the evaporator 31 .
- the bypass airflow AF2 has a larger air volume per unit time than the main airflow AF1 passing through the main air passage 44. Furthermore, the bypass airflow AF2 has a faster wind speed than the main airflow AF1. Therefore, if the bypass air passage 43 does not have the air guiding surface 46A that guides it toward the center of the heat exchanger, the pressure loss increases and the air velocity balance when flowing into the heat exchanger is poor, resulting in poor heat exchange efficiency. gets worse.
- the evaporator 31, which is part of the heat exchanger, and the rectifying member 38 are arranged to face each other with a first space 33 (interval D3, 10 mm) therebetween.
- the activated carbon filter 42 and the rectifying member 38, which are part of the air cleaning filter are arranged to face each other with the first space 33 (interval D3, 10 mm) therebetween. Therefore, the bypass airflow AF2 that has passed through the bypass air passage 43 and the main airflow AF1 that has passed through the main air passage 44 are mixed in the second space 34 and the first space 33 .
- the airflow AF flowing into the evaporator 31 can be dispersed in a well-balanced manner and supplied to the evaporator 31, thereby improving the heat exchange efficiency.
- the distance D3 of the first space 33 is practically in the range of 10 mm to 15 mm. If the interval D3 is increased, the size of the housing 3 in the depth direction is increased. Also, the distance D4 of the second space 34 is practically in the range of 15 mm to 20 mm. If the interval D4 is increased, the size of the housing 3 in the depth direction is increased.
- bypass air passages 43 are arranged in parallel on both the left and right sides of the main air passage 44, compared with the case where the bypass air passages 43 are arranged only on one side of the main air passage 44, a part of the heat exchanger It is possible to reduce unevenness in the amount of air flowing into a certain evaporator 31 and improve the heat exchange efficiency.
- the air (airflow AF) passing through the evaporator 31 exchanges heat with the refrigerant flowing through the evaporator 31 .
- the refrigerant that has been decompressed by the decompression device (not shown) installed in the middle of the refrigerant circuit (not shown) through which the refrigerant from the compressor 6 flows flows. Therefore, the refrigerant having a lower temperature than the air taken into the case 10 flows through the evaporator 31 .
- the refrigerant flowing through the evaporator 31 absorbs heat from the air passing through the evaporator 31 .
- the airflow AF passing through the evaporator 31 absorbs heat from the refrigerant flowing through the evaporator 31 . That is, the airflow AF passing through the evaporator 31 is cooled by the refrigerant flowing through the evaporator 31 . As a result, the water contained in the airflow AF passing through the evaporator 31 is condensed and dew condensation occurs. Moisture in the condensed air is removed from the air as liquid water. The removed water is stored, for example, in a water storage tank 7 (see FIG. 1) provided inside the case 10 . This water storage tank 7 can be taken out to the outside of the case 10 .
- the air that has passed through the evaporator 31 is sent to the condenser 32.
- Heat exchange takes place between the air passing through the condenser 32 and the refrigerant flowing through the refrigerant piping of the condenser 32 .
- the refrigerant flowing through the condenser 32 is cooled by the air passing through the condenser 32 .
- Air passing through the condenser 32 is heated by the refrigerant flowing through the condenser 32 .
- the air that has passed through the condenser 32 is in a drier state than the air outside the dehumidifier 1.
- This dry air passes through the fan 21 .
- the air that has passed through the fan 21 is sent upward from the case 10 through the air outlet 12 .
- the dehumidifier 1 dehumidifies the introduced air.
- the dehumidifier 1 can also supply dry air to the outside of the housing 3 .
- the motor 21A is driven with the shutter 51S closed, and the fan 21 starts rotating.
- the fan 21 rotates, an airflow AF is generated inside the case 10 from the inlet 11 toward the outlet 12 .
- the shutter 51S is closed, the inlet 43A of the bypass air passage 43 is closed. Since the bypass air passage 43 is closed, the air that has passed through the inlet cover 11A passes only through the main air passage 44 (only the main air flow AF1 is supplied downstream).
- the inside of the case 10 becomes negative pressure, so air is introduced into the main air passage 44 .
- the HEPA filter 41 and the activated carbon filter 42 are arranged in the main air passage 44, the pressure loss becomes larger than during the dehumidification operation. Therefore, the number of rotations of the fan 21 is high when the same amount of air as in the dehumidifying operation is flowed, and the load on the motor 21A is also large, resulting in increased operating noise (wind noise of the fan 21, etc.).
- the airflow AF1 passes only through the main air passage 44, the air blown out from the outlet 12 of the dehumidifier 1 is cleaner than during the dehumidifying operation.
- odorous components are also removed by the action of the activated carbon filter 42 .
- the air that has passed through the main air passage 44 flows into the evaporator 31 .
- the air flow after entering the evaporator 31 is the same as in the dehumidifying operation.
- the dehumidifier 1 includes A housing 3 (case 10) in which a suction port 11 and a discharge port 12 are formed; an air blower (fan 21) for generating an airflow AF from the inlet 11 to the outlet 12; two filters 41 and 42 as air cleaning means arranged inside the housing 3 (case 10); and an evaporator 31 as dehumidifying means arranged inside the housing 3 (case 10) for removing moisture in the airflow AF.
- a first air passage in which the airflow AF passes through the filters 41 and 42 and reaches the evaporator 31
- a second air passage in which the airflow AF reaches the evaporator 31 without passing through the filters 41 and 42
- airflow limiting means 51 for controlling the amount of bypass airflow AF2 by changing the degree of opening (cross-sectional area of the airflow passage) of the inlet 43A of the second airflow passage (bypass airflow passage 43) from fully open to fully closed.
- the inlet 43A of the second air passage (bypass air passage 43) is located on the outer peripheral side of the filters 41 and 42,
- the outlet 43B of the second air passage (bypass air passage 43) is positioned closer to the center of the filters 41 and 42 (the side closer to the center line BL) than the inlet 43A.
- the dehumidifier 1 Equipped with a control device (main control device 18) that controls the air blowing means 21, the air flow limiting means 51 and the electric compressor 6,
- the control device (main control device 18) controls the airflow limiting means 51 according to the environmental information.
- control device (main control device) 18 controls the airflow restricting means 51 according to the environmental information, it is possible to automatically select between the dehumidifying operation and the air cleaning operation. In other words, since the control device 18 can automatically select the appropriate air passages for dehumidifying operation and air purifier operation, the user is required to make special efforts to select the air passages. It is possible to obtain a dehumidifier that is easy to use.
- the environmental information acquired by the controller includes at least one of first information indicating humidity and second information indicating cleanliness of air.
- the second air passage 43 is used according to the humidity of the space in which the dehumidifier 1 is installed, such as a home or office, and the degree of contamination of the air (determined by dust, odor components, etc.). A dehumidifying operation, an air cleaning operation using the main air passage 44, and the like can be automatically selected.
- the controller main controller 18
- the first threshold set for the first information for example, humidity 50%
- the second threshold set for the second information 2 air pollution degree is "small"
- the air blowing means and the airflow restricting means 51 are driven to allow the bypass airflow AF2 to flow through the second air passage 43.
- the dehumidifying operation using the second air passage 43 and the air cleaning operation using the main air passage 44 are performed at a certain level. It can be automatically selected according to a criterion (threshold).
- the dehumidifier 1 further includes an input operation unit 17 that receives user's input operation, and a notification unit 23 that notifies the input result received by the input operation unit.
- the input operation unit 17 is provided with an operation unit for a power switch, and when the power switch is turned on, the main controller 18 drives the air blower to generate an airflow AF inside the housing 3 .
- Main controller 18 acquires environmental information (humidity and degree of contamination of air) during operation of the air blowing means, and sets a first threshold value (eg, humidity of 50%) and second information (air When both the second threshold value (the degree of contamination of the air is "small") set for the degree of contamination of the air is satisfied (steps S205 and S206 in FIG.
- the airflow limiting means 51 is driven to An air flow is made to flow in the air path 43.
- dehumidifying operation using the second air duct 43 and air cleaning operation using the main air duct 44 can be performed at a certain level according to "environmental information" such as the humidity of the indoor space and the degree of air pollution. It can be automatically selected according to a standard (threshold value), and since the environmental information is acquired while the air blowing means 21 is in operation, it is possible to acquire it accurately according to the surrounding air conditions, and it is possible to obtain it appropriately according to the surrounding environment. You can select any driving mode.
- the compressor 6 is an electric compressor that compresses the refrigerant by the power of a motor
- the control device main control device 18
- the control device includes the electric compressor 6 and the air blowing means 21.
- the airflow restricting means 51 respectively, and the control device 18 has an operation program that acquires the environmental information and determines whether or not to issue the command signal. Therefore, according to the humidity of the space where the dehumidifier 1 is installed and the degree of contamination of the air, the electric compressor 6, the air blowing means 21 and the air flow restricting means 51 are respectively controlled, and the conditions specified in the operation program are controlled. It is possible to select an appropriate operating mode according to the surrounding environment.
- the blowing means is configured to receive one of the command signals and change the blowing capacity by means of the drive circuit 28 . Therefore, according to the "environmental information", it is possible to operate with an appropriate air blowing intensity according to the surrounding environment under the conditions specified in the operation program.
- the humidity sensor 61 is provided to detect "humidity", which is a type of environmental information. It is possible to control the amount of airflow by the means 51, and to perform an efficient dehumidifying operation according to the humidity in the room.
- the dust sensor 62 for detecting air pollution and the gas sensor 63 were provided with respect to "air quality", which is a kind of environmental information, so that the control device 18 can detect these air quality sensors.
- the amount of airflow by the airflow restricting means 51 can be controlled according to the detection result. In other words, an efficient air cleaning operation can be performed according to the degree of contamination of the air in the room.
- control device 18 can control the amount of airflow by the airflow limiting means 51 according to the detection results of the humidity sensor 61, the dust sensor 62, and the gas sensor 63. It controls the air blowing means 21 or the electric compressor 6 . Therefore, the dehumidifying operation and the air cleaning operation can be automatically selected and performed efficiently.
- the inlet 43A of the second air duct is located on the outer peripheral side of the air cleaning means (filters 41, 42), and the outlet 43B of the second air duct 43 is located closer to the inlet 43A. are located on the center side of the air cleaning means (the side approaching the center line BL).
- the air cleaning means is a flat plate-shaped dust collection filter 41 installed in the first air passage 44, and the maximum width dimension W9 ( For example, the width dimension W2 (for example, 270 mm) of the evaporator 31 of the dehumidifying means is set larger than 255 mm). Because of this configuration, both during the dehumidifying operation and during the air cleaning operation, the airflow AF (AF1, AF2) that has passed through the main air passage 44 and the second air passage (bypass air passage 43) that does not pass through the filters 41 and 42. can be heat exchanged in the downstream evaporator 31 .
- the airflow AF AF1, AF2
- the air cleaning means has a first filter 41 that collects dust from the airflow AF and a second filter 42 (such as an activated carbon filter) that collects odor components from the airflow AF.
- a first filter 41 that collects dust from the airflow AF
- a second filter 42 such as an activated carbon filter
- the first filter 41 is arranged upstream of the airflow AF, and the second filter 42 is in contact with or in close proximity to the first filter 41, and downstream of the airflow AF. are placed in With this configuration, the depth dimension of the air passage on the upstream side of the evaporator 31 can be minimized, and an increase in the size of the housing 3 (case 10) of the dehumidifier 1 can be suppressed.
- a suction port 11 exists on the front surface of the housing 3,
- the inlet 43A of the suction port 11 and the second air passage (bypass air passage 43) is closer than the projected plane of the first filter 41 and the second filter 42.
- the containing projection plane is larger. That is, as described in FIGS. 6 and 9, the second air passage (bypass air passage 43) extends laterally from the left and right end surfaces of the first filter 41 and the second filter 42. It is widened by the width dimension W7 (30 mm) of the second air passage (bypass air passage 43).
- the inlet 43A of the second air passage is positioned outside the left and right side edges of the suction port 11.
- the inlet 43A of the second air passage is positioned to the right of the right edge of the suction port 11 or to the left of the left edge. Therefore, during the dehumidification operation, air can be directly supplied from the second air passage (bypass air passage 43) to the evaporator 31 without passing through the filters 41 and 42. Moreover, since this configuration does not sacrifice the area of the first filter 41 and the second filter 42, the air cleaning action is not impaired.
- the inlet 43A to the outlet 43B of the second air passage are linearly connected. That is, as described with reference to FIG. 4, the second air passage (bypass air passage 43) is such that the inlet 43A to the outlet 43B can be seen in a straight line. A large amount of air can be directly supplied to the evaporator 31 from the air passage 43).
- the first filter which is the HEPA filter 41, maintains a predetermined thickness whether or not the air to be dehumidified passes from the first air passage. It is characterized by a structure that That is, as described with reference to FIG. 8, since the structure has the frame 41B and maintains the shape of the filter main body 41A, the first air passage (main air passage 44) is not greatly deformed, and ventilation is possible. can maintain sexuality.
- the outer peripheral surface of the first filter 41 and the second filter 42 overlapped constitutes the inner wall surface of the second air passage (bypass air passage 43). Therefore, a dedicated wall for partitioning the first filter 41 and the second filter 42 is not required to configure the second air passage (bypass air passage 43), so the configuration can be simplified. is advantageous in terms of cost.
- the straightening member 38 is a structure characterized by a flat structure having a large number of ventilation windows 38A (see FIGS. 3 and 4). Therefore, the main airflow AF1 and bypass airflow AF2 from the first filter 41 and second filter 42 sides can be further averaged in the upstream stage leading to the evaporator 31 . As described with reference to FIG. 4, it would be even better if the inner side surfaces of a large number of mutually independent ventilation windows 38A were flat guide surfaces over a certain length (D5).
- the facing distance between the filters 41 and 42 is a certain dimension (distance D4) or more.
- a maintained rectifying member 38 was provided. Therefore, the main airflow AF1 and bypass airflow AF2 from the first filter 41 and second filter 42 sides can be further averaged in the upstream stage leading to the evaporator 31 .
- a straightening member 38 is provided to prevent the first filter 41 and the second filter 42 from moving toward the evaporator 31 due to the passing main airflow AF1. That is, since the rectifying member 38 has a rigid structure and is installed so as to traverse the entire upstream side of the evaporator 31, the first filter 41 and the second filter 42 pass through the main airflow AF1. can be prevented from moving downstream or being deformed. Therefore, it is possible to prevent deterioration in performance due to deformation and movement.
- the facing distance between the rectifying member 38 and the evaporator 31 (the distance D3 of the first space 33) is set within the range of 10 mm to 15 mm. Therefore, the main airflow AF ⁇ b>1 and the bypass airflow AF ⁇ b>2 can be averaged in the upstream stage leading to the evaporator 31 .
- the suction port 11 exists on the front surface of the housing 3 (case 10), and when the suction port 11 side is viewed from the front of the housing 3, the inlet 43A of the second air passage is , on the left and right sides of the suction port 11, respectively.
- air can be directly supplied from the second air passage (bypass air passage 43) to the evaporator 31 without passing through the filters 41 and 42 during the dehumidifying operation. That is, compared to the case where the bypass air passage 43 is arranged on one side of the main air passage 44, the bias of the airflow from the bypass air passage 43 flowing into the evaporator 31 can be reduced, and the airflow flowing into the evaporator 31 can be balanced. can flow in.
- this configuration does not sacrifice the area of the first filter 41 and the second filter 42, the air cleaning action is not impaired.
- the airflow restricting means 51 is an opening/closing means capable of selecting either a state of passing or blocking the bypass airflow AF2 in the second air passage (bypass air passage 43). . Because of this configuration, as described with reference to FIG. 10, the airflow restricting means 51 is controlled by the shutter 51S that moves between the open position OP and the closed position CL, and the motor 51B that is the drive source that opens and closes the shutter 51S. Configurable. Therefore, the airflow limiting means 51 can be installed without difficulty inside the case 10 where the installation space is limited.
- the airflow restricting means 51 is characterized in that it has a shutter 51S which can selectively allow or block the bypass airflow AF2 in the second air passage 43. was the configuration. Therefore, the airflow restricting means 51 can be installed without difficulty inside the case 10 where the installation space is limited.
- the airflow restricting means 51 is configured to open and close the shutter 51S upon receiving an electric signal. Therefore, the user does not need to manually open and close the shutter 51S, and the user's burden associated with the dehumidifying operation can be reduced.
- the dehumidifier 1 includes a control section (drive circuit 28) for controlling the operation of the fan 21 of the air blowing means, and a refrigerant supply circuit for supplying refrigerant to the dehumidifying means (evaporator 31, etc.).
- the control device (main control device 18) issues a command to the drive section (motor 51B) to open the shutter 51S. Therefore, the user does not need to manually open and close the shutter 51S, and the user's burden associated with the dehumidifying operation can be reduced.
- the control device main control device 18
- the second driving unit Motor 51B
- the “environmental conditions” here means, for example, “the humidity in the room (space) in which the dehumidifier 1 is installed exceeds 50%” as described in the first embodiment. Furthermore, as described with reference to FIG. 14, for example, “exceeds 50% and the degree of air pollution is small” or the like may be used.
- the user does not need to manually open and close the shutter 51S, and the shutter 51S can be automatically opened by performing a predetermined input to the input operation unit 17. This reduces the user's burden associated with the dehumidifying operation.
- Embodiment 1 discloses a dehumidifier 1 according to the following second example.
- the dehumidifier 1 according to the second embodiment is A housing 3 (case 10) in which a suction port 11 and a discharge port 12 are formed; an air blower (fan 21) for generating an airflow AF from the inlet 11 to the outlet 12; two filters 41 and 42 as air cleaning means arranged inside the housing 3 (case 10); and an evaporator 31 as dehumidifying means arranged inside the housing 3 (case 10) for removing moisture in the airflow AF.
- a first air passage in which the airflow AF passes through the filters 41 and 42 and reaches the evaporator 31
- a second air passage in which the airflow AF reaches the evaporator 31 without passing through the filters 41 and 42
- airflow limiting means 51 for controlling the amount of bypass airflow AF2 by changing the degree of opening (cross-sectional area of the airflow passage) of the inlet 43A of the second airflow passage (bypass airflow passage 43) from fully open to fully closed.
- the suction port 11 is present on the front surface of the housing 3,
- the suction port 11 has a square or rectangular projected shape when viewed from the front side of the housing 3,
- the inlet 43A of the second air passage is continuously adjacent to the outside of the left and right side edges of the suction port 11 and is formed symmetrically,
- the evaporator 31 is positioned substantially inside the outer edge of the projected shape of the suction port 11 when viewed from the front side of the housing 3 .
- a control device main control device 1818 provided, The control device 18 controls the airflow limiting means 51 according to the environmental information.
- control device main control device 18
- the control device 18 can control the airflow limiting means 51 according to the environmental information and automatically select between the dehumidifying operation and the air cleaning operation.
- the control device 18 can automatically select air paths suitable for dehumidifying operation and air purifier operation, a user-friendly dehumidifier can be obtained without requiring special efforts from the user. be done.
- bypass air passage 43 extends further outward than the left and right end surfaces of the suction port 11 and symmetrically. configuration. Therefore, the bypass airflow AF2 can be supplied to the evaporator 31 from both sides in a well-balanced manner without sacrificing the air filtration (purification) area of the air purification means (filters 41 and 42).
- the evaporator 31 has a square or rectangular projected shape when viewed from the front side of the housing 3, and has a large number of heat exchange evaporators having minute gaps through which the airflow AF passes. It is characterized by having fins. Therefore, when the evaporator 31 is viewed from the front side, the bypass airflow AF2 can be supplied from the bypass air passage 43 to the heat exchange fin portions at the right end and the left end in a well-balanced manner.
- the evaporator 31 has a width dimension W2 (270 mm, see FIG. 7) as viewed from the front side of the housing 3, which is equal to a width dimension W8 of the air purification means (filters 41 and 42). It is larger than W9 (both are 255 mm, see FIG. 8) and smaller than the width dimension (frontage dimension) W1 (315 mm, see FIG. 6) of the suction port 11 .
- W2 270 mm, see FIG. 7
- W8 of the air purification means filters 41 and 42
- W9 both are 255 mm, see FIG. 8
- W1 frontage dimension
- Embodiment 1 discloses a dehumidifier 1 according to the following third embodiment.
- the dehumidifier 1 according to the third embodiment is A housing 3 (case 10) in which a suction port 11 and a discharge port 12 are formed; an air blower (fan 21) for generating an airflow AF from the inlet 11 to the outlet 12; two filters 41 and 42 as air cleaning means arranged inside the housing 3 (case 10); and an evaporator 31 as dehumidifying means arranged inside the housing 3 (case 10) for removing moisture in the airflow AF.
- a first air passage in which the airflow AF passes through the filters 41 and 42 and reaches the evaporator 31;
- a control device main control device 18 that controls the air blowing means 21, the airflow limiting means 51, and the electric compressor 6 is provided, and the control device controls the airflow limiting means 51 according to environmental information.
- control device main control device 18
- the control device 18 can control the airflow limiting means 51 according to the environmental information and automatically select between the dehumidifying operation and the air cleaning operation.
- the control device 18 can automatically select air paths suitable for dehumidifying operation and air purifier operation, a user-friendly dehumidifier can be obtained without requiring special efforts from the user. be done.
- the presence of the rectifying member 38 can prevent the distribution of the airflow AF in the upstream stage reaching the evaporator 31 from concentrating only locally on the evaporator 31 . That is, the airflows of the first air passage and the second air passage can be efficiently passed to the downstream evaporator 31 side, and the dehumidification efficiency can be improved.
- Embodiment 2. 19 and 20 show the dehumidifier 1 of Embodiment 2.
- FIG. FIG. 19 is a vertical cross-sectional view showing the air flow during the dehumidifying operation of the dehumidifier 2 of Embodiment 2.
- FIG. 20 is a vertical cross-sectional view showing the air flow during the air cleaning operation of the dehumidifier 2 of Embodiment 2.
- Identical or equivalent parts to those of the configuration of the first embodiment described with reference to FIGS. 1 to 18 are denoted by the same reference numerals.
- the bypass air passage 43 is arranged on both left and right sides of the HEPA filter 41 and the activated carbon filter 42, and the bypass air passage 43 and the main air passage 44 are arranged parallel to each other on the left and right sides of the suction port 11. It had been.
- bypass air passage 45 is arranged below the HEPA filter 41 and the activated carbon filter 42, and the bypass air passage 45 and the main air passage 44 are arranged in parallel with each other below the suction port 11. placed in Embodiment 2, bypass air passages are not provided on both the left and right sides of the HEPA filter 41 and the activated carbon filter 42 .
- a bypass air passage 45 having a width dimension (W1) corresponding to the width dimension of the HEPA filter 41 and the activated carbon filter 42.
- the bypass air passage 45 is a space provided inside the front case 10 ⁇ /b>F and is part of the air passage leading from the inlet 11 to the outlet 12 .
- the width dimension W7 of the bypass air passage 43 is not 30 mm in the first embodiment, but 30 mm in the first embodiment. 2 has a size of about 255 mm. Instead, the vertical dimension of the inlet 43A is set to about 30 mm.
- the bypass airflow 43 is an airflow through which the bypass airflow AF2 flows without passing through the HEPA filter 41 and the activated carbon filter 42.
- the air passage in which the HEPA filter 41 and the activated carbon filter 42 are arranged is called a main air passage 44 .
- the bypass air passage 43 and the main air passage 44 have a vertical positional relationship and are arranged in the front-rear direction. Since the bypass air passage 43 is arranged below and adjacent to the main air passage 44 in this manner, the size of the dehumidifier 1 in the left-right direction can be reduced.
- the length of the bypass air passage 45 in the lateral direction (lateral direction) is approximately the same as the length of the bypass air passage 45 of the HEPA filter 41 in the lateral direction (lateral direction). It is desirable to set
- the term "front face (front face) of the dehumidifier 1" used herein is defined for convenience of explanation of the second embodiment, and is different from the case where the dehumidifier 1 is actually used.
- bypass air passage 43 and the main air passage 44 pass through the space downstream of the activated carbon filter 42, that is, the second space 34, the rectifying member 38, the first space 33, and the blowout port 12, to the case 10. communicates with the outside of the activated carbon filter 42, that is, the second space 34, the rectifying member 38, the first space 33, and the blowout port 12, to the case 10. communicates with the outside of the activated carbon filter 42, that is, the second space 34, the rectifying member 38, the first space 33, and the blowout port 12, to the case 10. communicates with the outside of the
- the straightening member 38 faces the front surface of the evaporator 31, which is part of the heat exchanger, with the first space 33 interposed therebetween. That is, the straightening member 38 faces the evaporator 31 with a predetermined distance D3 (see FIGS. 5 and 6).
- the rectifying member 38 faces the back surface of the activated carbon filter 42 with the second space 34 therebetween. That is, the rectifying member 38 faces the back surface of the activated carbon filter 42 with a predetermined distance D4.
- a wind tunnel 46 extending rearward from the rim of the suction port 11 is installed so as to cover the lower end faces of the HEPA filter 41 and the activated carbon filter 42 with a gap therebetween.
- a gap between the front end of the wind tunnel 46 and the lower end face of the HEPA filter 41 serves as an inlet 43A of the bypass air passage 43.
- a single wind guide surface 46A is provided at the rear end of the wind tunnel 46 .
- the air guide surface 46A changes the direction of the bypass airflow AF2 traveling through the bypass airflow passage 43 upward (elevation angle direction) to direct it toward the center of the evaporator 31 (the second center point shown in FIG. 7). OB).
- the air guide surface 46A is configured by a flat surface, for example. By adjusting the normal direction of this plane, the direction in which the bypass airflow AF2 is guided can be adjusted. Also, the wind guide surface 46A may be configured with a curved surface. By adjusting the curvature of the curved surface, the spread of the guided bypass airflow AF2 can be adjusted.
- the bypass air passage 43 is provided with a shutter 51S for opening and closing the air passage.
- the shutter 51S is configured by a plate-like member.
- the shutter 51S is arranged downstream of the inlet cover 11A.
- the shutter 51S is, for example, supported by a shaft (not shown) on the side opposite to the HEPA filter 41, that is, on the lower end side of the plate-shaped shutter 51S, and is driven by a motor 51B (not shown) for driving the opening/closing means. do.
- the rotation angle of the motor 51B is controlled by the main controller 18 (not shown). Therefore, it is convenient to use a stepping motor for this motor 51B.
- the shutter 51S opens and closes the entrance 43A of the bypass air passage 43.
- the shutter 51S is driven by a driving motor 51B (not shown) to move the bypass airflow path 43 from a position that closes the bypass airflow path 43 in the downstream direction of the bypass airflow AF2 around a rotating shaft 51E (not shown). to the open position. Since the shutter 51S is composed of one plate-like member and there is one rotating shaft 51E driven by the opening/closing means driving motor 51B, the dehumidifier 1 having a simple structure and easy opening/closing control can be obtained.
- a gas sensor 63 is installed, although not shown.
- the gas sensor 63 is arranged inside the case 10 at a position below the suction port 11 or in the vicinity of the suction port 11 and on the right or left side of the suction port 11 .
- An opening (not shown) that communicates with the outside of the case 10 is provided on the wall surface of the case 10 near the gas sensor 63 . Further, the opening is for making it easier for the gas sensor 63 to sense the room air around the dehumidifier 1 .
- the gas sensor 63 transmits gas detection data to the main controller 18, and the main controller 18 can determine the degree of odor of indoor air based on the gas detection data. can. Further, the measurement result of the gas sensor 63 can be displayed on the display section 23D by the main controller 18 as in the first embodiment.
- the operation of the dehumidifier 2 of Embodiment 2 includes a dehumidifying operation mode, an air cleaning operation mode, and a dehumidifying air cleaning operation mode, similar to the operation of the dehumidifier 1 of Embodiment 1.
- the opening/closing control and opening degree control of the shutter 51S in the dehumidifying operation mode, the air cleaning operation mode, and the dehumidifying air cleaning operation mode are the same as the opening/closing control of the shutter 51S of the dehumidifier 1 of the first embodiment.
- the degree of openness refers to the ratio of the flow rate of the bypass airflow AF2 flowing through the bypass airflow passage 43 in the range of 100% to 0% (when closed), such as 80%, 70%, 50%, and 30%. , refers to the open rate in the middle stage.
- the dehumidifier 2 exemplified in this Embodiment 2 is A housing 3 (case 10) in which a suction port 11 and a discharge port 12 are formed; an air blower (fan 21) for generating an airflow AF from the inlet 11 to the outlet 12; two filters 41 and 42 as air cleaning means arranged inside the housing 3 (case 10); and an evaporator 31 as dehumidifying means arranged inside the housing 3 (case 10) for removing moisture in the airflow AF.
- a first air passage in which the airflow AF passes through the filters 41 and 42 and reaches the evaporator 31;
- the inlet 43A of the second air passage is located on the lower outer peripheral side of the filters 41 and 42,
- the outlet 43B of the second air passage 43 is located closer to the center of the filters 41 and 42 (the side closer to the center line BL) than the inlet 43A.
- a control device main control device 18 that controls the air blowing means, the air flow limiting means 51 and the electric compressor 6 is provided,
- the main controller 18 controls the airflow limiting means 51 according to the environmental information.
- controller main controller 18
- the controller controls the airflow restricting means 51 according to the environmental information, it is possible to automatically select between the dehumidifying operation and the air cleaning operation.
- the control device 18 can automatically select the appropriate air passages for dehumidifying operation and air purifier operation, the user is required to make special efforts to select the air passages. It is possible to obtain a dehumidifier that is easy to use.
- the configuration is the same as that of the first embodiment, the same effects as those described in the first embodiment can be obtained.
- the second air passage (bypass air passage 43) is arranged below the HEPA filter 41 and the activated carbon filter 42, and the second air passage (bypass air passage 43) and the main air passage 44 are arranged. are arranged in parallel in a vertical positional relationship, the size (width) of the dehumidifier 1 in the left-right direction can be reduced.
- the bypass air passage 43 is arranged below and adjacent to the main air passage 44 .
- the air guide surface 46A provided in the bypass air passage 43 is configured to guide the airflow passing through the bypass air passage 43 toward the center of the evaporator 31 by changing the direction from the horizontal direction to the upward direction (elevation angle direction).
- the bypass air passage 43 may be arranged above and adjacent to the main air passage 44 .
- the air guide surface 46A provided in the bypass air passage 43 changes the air flow passing through the bypass air passage 43 from the horizontal direction to the downward direction (depression angle direction) and guides it toward the central portion of the evaporator 31. may be configured.
- Embodiment 3. 21 to 26 show the dehumidifier 1 of Embodiment 3.
- FIG. 21 to 23 show the dehumidifier 1 of Embodiment 3.
- FIG. 21 is a partially simplified perspective view of the dehumidifier.
- FIG. 22 is an exploded cross-sectional view of the front case portion of the dehumidifier 1 of FIG. 21 taken along line CC.
- 23 is a front view of the suction port frame used in the dehumidifier 1 of FIG. 21.
- FIG. FIG. 24 is a longitudinal (perpendicular) cross-sectional view of the dehumidifier 1 shown in FIG. 21 at the left-right central portion.
- FIG. 25 is a block diagram showing main control-related parts of the dehumidifier 1 shown in FIG.
- the same reference numerals are given to the same or corresponding portions as the configurations of the respective embodiments described with reference to FIGS. 1 to 20 .
- the third embodiment is obtained by changing the configuration of the parts constituting the bypass air passage 43 shown in the first embodiment.
- a human sensing unit 64 is provided as an example of an ambient information acquisition unit that senses whether or not a person such as a user is present. It is characterized by being installed on the body 3.
- a square suction port frame 50 as viewed from the front (front) side is fitted in the front case 10F in which the suction port 11 is formed.
- the suction port frame 50 is integrally formed from a thermoplastic material as a whole.
- the upper wall portion 50T and the lower wall portion 50U connect the right side peripheral wall 50R to the left side peripheral wall 50L.
- a right bypass air passage 43 is formed between the upper wall portion 50T, the lower wall portion 50U, and the right peripheral wall 50R.
- FIG. 22(A) shows a state in which the suction port frame 50 is assembled in the front case 10F, but the suction port cover 11A is not installed as indicated by the dashed line.
- FIG. 22(B) shows the state before the suction port frame 50 is incorporated into the front case 10F. Therefore, the cross-sectional shapes of the suction port frame 50 and the front case 10F can be clearly seen. Also in FIG. 22(B), the suction port cover 11A is not attached as indicated by the dashed line.
- a left bypass air passage 43 is formed between the upper wall portion 50T, the lower wall portion 50U, and the left peripheral wall 50L.
- the size (diameter) of the inlet 43A and the outlet 43B of the two left and right bypass air passages 43 is set to the same size.
- a reference numeral 50B denotes a stepped portion (recess) formed at the front end portion of the peripheral walls 50L and 50R, which is for fitting the suction port cover 11A. That is, the stepped portion 50B allows the suction port cover 11A to be detachably installed on the case 10 so as not to project forward beyond the front surface of the front case 10F.
- one of the characteristic configurations of the third embodiment is that the right side peripheral walls 50R1 and 50R2, the left side peripheral wall 50L1 and the 50L2 are formed, and partition walls (peripheral walls 50R1, 50R2, 50L1, 50L2) separate the space from the inlet 43A to the outlet 43B of the bypass air passage 43 into two spaces.
- bypass air passage 43 One of these spaces becomes the first air passage, and the other space becomes the second air passage (bypass air passage 43).
- a filter having a predetermined size is provided inside the suction port frame 50. It is a configuration in which the bypass air passage 43 is partitioned.
- FIG. 24 will be explained.
- the bypass air passage 43 and the main air passage 44 are adjacent to each other on the left and right as in the first embodiment.
- An infrared sensor 64S that detects heat is arranged on the rear side of the housing 3 of the dehumidifier 1.
- the infrared sensor 64S is a sensor that detects the surface temperature of the target area in a non-contact state.
- the infrared sensor 64S is connected to the human sensing section 64 (see FIG. 25).
- the presence or absence of people in the room is determined. For example, when there is a large change in the sensing result of the infrared sensor 64S, it is estimated that the heat source has moved, and it is determined that there is a person.
- the infrared sensor 64S only needs to be able to detect the presence or absence of a person, and may be another human detection sensor such as an ultrasonic wave sensor, for example.
- the infrared sensor 64S has a sensing range (target area) set toward the rear side of the housing 3 of the dehumidifier 1, that is, rearward from the rear case 10B.
- the rear case 10B is the side that a person such as a user approaches. Therefore, after this, the dehumidifier 1 should be installed so that the case 10B side faces the center of the room or the like.
- the presence (presence or absence) of a person may be determined by the infrared sensor 64S, and the opening and closing of the shutter 51S may be controlled.
- the main controller 18 assumes that dust will rise as the person moves, and closes the shutter 51S.
- a command signal may be issued to the airflow limiting means 51 . That is, the operation of the drive motor 51B is controlled, and the operation is performed with the shutter 51S closed. In other words, the air cleaning operation is automatically performed without any special input operation by the user.
- a reference numeral 64 denotes a human detection unit that receives a detection signal from the infrared sensor 64S and determines the presence of a person.
- the human detection unit 64 does not need to be provided exclusively as hardware, and may be implemented as part of a program that implements the functions of the main controller 18 .
- a processing circuit common to other sensors for example, the dust sensor 62 may be provided to have a human detection function.
- Reference numeral 64M is a drive mechanism for expanding the sensing range of the infrared sensor 64S.
- the drive mechanism 64M drives a drive source such as an actuator including electrical and mechanical elements such as an electric motor.
- An infrared sensor 64S is fixed to the drive mechanism 64M.
- the driving mechanism 64M When the driving mechanism 64M is driven, the temperature sensing surface of the infrared sensor 64S is rotated within a certain range in the vertical and horizontal directions (for example, 45 degrees in the horizontal direction, 15 degrees in the vertical direction, etc.), as indicated by the dashed lines in FIG. ). That is, the operation of the driving mechanism 64M expands the sensing range.
- the driving mechanism 64M changes the direction of the sensing surface of the infrared sensor 64M at regular time intervals. This drive pattern is determined by the main controller 18 . It should be noted that providing the drive mechanism 64M is not essential.
- the infrared sensor 64S of the human sensing unit 64 may allow the user to select the human sensing range.
- the input operation unit 17 and the display unit 23D may be used so that the user can input the sensing range. It is preferable that the sensing range is displayed on the display section 23D as a figure or the like, and the sensing range can be determined by the input operation section 17 while looking at it.
- the bypass air passage 43 is formed by incorporating the intake port frame 50 into the front case 10F. That is, as shown in the first and second embodiments, the bypass air passage 43 is not formed using the outer peripheral end surfaces of the two filters 41 and 42 . Therefore, a bypass air passage 43 is formed that is not affected by air permeability depending on the positions and shapes of the outer peripheral end surfaces of the filters 41 and 42 . In other words, when the filters 41 and 42 are once removed for replacement or inspection and then re-installed and operated, if the installation positions of the filters 41 and 42 change, the bypass air passage 43 will be damaged. There is a concern that breathability will decrease.
- an infrared sensor 64S that senses heat emitted from a person such as a user is installed in the space where the dehumidifier 1 is installed, and based on the sensing data from the infrared sensor 64S
- a human detection unit 64 for detecting the presence of a person is provided.
- the main controller 18 controls the opening/closing operation of the shutter 51S of the airflow restricting means 51 according to the human detection result from the human detection unit 64 .
- the main controller 18 acquires information (human detection information) regarding the presence or absence of a user or the like based on the detection information from the infrared sensor 64S as a kind of ambient information, One of the following operations is performed when a third threshold (eg, presence of a person for a certain period of time or more) set for the human detection information (third information) is satisfied.
- a third threshold eg, presence of a person for a certain period of time or more
- the state of the second air passage 43 is changed from a state in which the bypass airflow AF2 flows to a state in which the bypass airflow AF2 does not flow, or the airflow limiting means 51 to maintain the closed state of the second air passage 43 (maintain a state in which the bypass airflow AF2 does not flow).
- the state of the second air passage 43 is changed from a state in which the bypass airflow AF2 does not flow to a state in which the bypass airflow AF2 flows. maintain the open state of the second air passage 43 (maintain the state in which the bypass airflow AF2 flows).
- Air purification priority mode is an operation mode that can be selected by the operation mode changeover switch 17S of the input operation unit 17.
- the “operation noise reduction mode” is an operation mode that can be selected by the operation mode changeover switch 17S of the input operation unit 17.
- FIG. In other words, when the dehumidifier 1 senses that a person is in the living space or the like, it is an operation mode for the purpose of maintaining a comfortable space by reducing the operating noise of the dehumidifier 1 as much as possible. It is one of the convenient driving modes.
- Other advantages of the third embodiment are the same as those described in the first and second embodiments.
- FIG. 26 shows the configuration of the dehumidifier 1 of the fourth embodiment.
- FIG. 26 is a longitudinal (perpendicular) cross-sectional view of the dehumidifier of Embodiment 4 at the left-right central portion.
- the same reference numerals are given to the same or corresponding parts as the configurations of the respective embodiments described with reference to FIGS.
- a feature of this fourth embodiment is that information about the brightness of the space in which the dehumidifier 1 is installed is acquired as a type of surrounding information.
- an illuminance determination unit 65 (not shown) for obtaining surrounding information is provided, and an illuminance sensor 65S for sensing illuminance is installed in the housing 3.
- an illuminance sensor 65S is arranged on the upper surface 10UF of the case 10 (front case 10F) of the dehumidifier 1.
- the illuminance sensor 65S is a sensor that detects indoor brightness.
- the illuminance sensor 65S is connected to the main controller 18 via the illuminance determination unit 65 (not shown).
- the illuminance determination unit 65 does not need to be provided exclusively as hardware, and may be implemented as part of the program that implements the functions of the main controller 18 . Also, a processing circuit common to other sensors (for example, the dust sensor 62) may be provided to have the illuminance determination function.
- the main controller 18 may detect the brightness of the room with the illuminance sensor 65S, drive the motor 51B of the airflow limiting means 51, and control the opening/closing operation (adjustment of opening degree) of the shutter 51S. For example, when the room is dark, it is assumed that it is nighttime, and the operation is performed with the shutter 51S fully opened in order to reduce the operation noise.
- the dehumidifier 1 disclosed in the fourth embodiment includes, in addition to the features of the first embodiment, the illuminance determination unit 65 for detecting brightness and the illuminance sensor 65S.
- the illuminance determination unit 65 determines illuminance using the illuminance measurement data from the illuminance sensor 65S.
- the main controller 18 determines the opening/closing degree of the bypass air passage 43 by the air flow restricting means 51 according to the determination result of the illuminance. That is, since the main controller 18 automatically controls the opening and closing of the bypass air passage 43 according to the brightness of the room, air cleaning operation and dehumidification operation can be appropriately selected.
- control can be performed by sensing the presence of a person as described in the fourth embodiment.
- Various sensors for acquiring "environmental information” described in Embodiments 1 to 4, and various sensors for acquiring "surrounding information" (infrared sensor 64S, The illuminance sensor 65S) can be used alone, or can be used in combination as appropriate.
- a dehumidifier according to the present disclosure can be used, for example, to dehumidify indoor air.
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Abstract
Description
吸込口と吹出口とが形成された筐体と、
前記吸込口から前記吹出口へ至る気流を発生させる送風手段と、
前記筐体の内部に配置された空気清浄化手段と、
前記筐体の内部に配置され、前記気流の中の水分を除去する除湿手段と、
を備える除湿機であって、
前記筐体の内部に形成され、前記気流が前記空気清浄化手段を通過して前記除湿手段に至る第一の風路と、
前記筐体の内部に形成され、前記気流が前記空気清浄化手段を通過せずに前記除湿手段に至る第二の風路と、
前記第二の風路の前記気流の流れを制限する気流制限手段と、
前記除湿手段に冷媒を供給する圧縮機と、
前記送風手段、前記気流制限手段及び前記圧縮機を制御する制御装置と、
を有し、
前記制御装置は、環境情報及び周囲情報の少なくとも一つに応じて前記気流制限手段を制御することを特徴とするものである。
図1から図20は、実施の形態1の除湿機を示すものである。なお、除湿機の構造物の大きさおよび位置は、図示の例と実際とで異なることがある。また、説明の都合上、各図面において記載で適宜省略している場合もある。
除湿機1は、ケース10を備える。ケース10は、除湿機1の外殻を形成する筐体3の一部を構成している。筐体3は、後述する複数個の車輪20が取り付けられた底板4を有している。ケース10と底板4とによって、中空の箱型の筐体3が形成されている。
除湿機1は、ルーバー13を備える。
ルーバー13は、この実施の形態1では、前述したように上ケース10Uの後方部10UBの1枚だけで構成している。なお、ルーバー13は、数枚の板状の部材によって構成しても良い。ルーバー13は、吹出口12から空気が送り出される方向を調整するためのものである。ルーバー13は、吹出口12の近くに開閉自在に配置されている。
図3において、HEPAフィルター41および活性炭フィルター42の左右には、隣接してバイパス風路43がある。バイパス風路43は、前ケース10Fの内部において、吸込口11の高さ方向の全域に亘って設けられる空間である。
図4に示しているように、バイパス風路43は、気流AFがHEPAフィルター41と活性炭フィルター42とを通過せずに下流へ流れる風路である。このバイパス風路43に対し、HEPAフィルター41と活性炭フィルター42とを気流AFが通過する風路がメイン風路44である。
バイパス風路43には、気流制限手段51が設けられている。気流制限手段51は、図10に詳しく示しているが、バイパス風路43の入口43Aを開閉する板状のフラップ又は仕切板を有している。このフラップ又は仕切板を、統一的にシャッター51Sと称する。
D1は、凝縮器32の前後方向の厚さ(奥行寸法)を示すものであり、51mmである。D2は、蒸発器31の前後方向の厚さ(奥行寸法)を示すものであり、38mmである。この蒸発器31には、冷媒配管22が前後に2列(2層)配置されている。そのように冷媒配管22を2層に設けているため、1層に比べて冷却能力が高い。なお、各図では、説明の簡略化のため、蒸発器31と凝縮器32とは、実際の厚さに比例した大きさでは描いておらず、これらの図では同等の大きさで描いている。
W2は、蒸発器31の横幅寸法であり、270mmに設定されている。W3は、凝縮器32の横幅寸法であり、270mmに設定されている。
図7において、W2は、蒸発器31の横幅寸法であり、前述したように270mmに設定されている。冷媒配管22は、この蒸発器31の中を前後2段階(2層)に貫通している。冷媒配管22は、蒸発器31の第1の所定の位置から第2の所定の位置までを蛇行しながら貫通している。冷媒配管22は、途中で一部が図7に示すように屈曲形状になって突出する。
活性炭フィルター42は、塵埃捕集と臭い成分の吸着機能を発揮するフィルター本体42Aと、このフィルター本体42Aの全周縁を保護する枠体42Bとから構成されている。フィルター本体42Aは、それ自体は柔軟性があるが、枠体42Bと一体化されることで一定の剛性が付与され、ユーザーが交換作業をする際にも取り扱いが容易になる。
HEPAフィルター41は、塵埃捕集機能を発揮するフィルター本体41Aと、このフィルター本体41Aの全周縁を保護する枠体41Bとから構成されている。フィルター本体41Aは、それ自体は柔軟性があるが、枠体41Bと一体化されることで一定の剛性が付与され、ユーザーが交換作業をする際にも取り扱いが容易になる。
D7は、枠体41Bの奥行寸法である。言い換えると左右方向から見た場合の「厚み」であり、20mm~40mmの中の1つの寸法(例えば、30mm)に設定されている。なお、フィルター本体41Aは、枠体41Bと同等の奥行寸法である。HEPAフィルター41の奥行寸法は、枠体41Bの奥行寸法D7で決定する。なお、枠体41Bを前方から見た場合の、その枠体41Bだけの厚みは、数mm程度である。
フラップ形状又は平板形状のシャッター51Sは、モータ51B(例えば、ステッピングモータ)の回転軸51Eに、一端部が支持される。図10では、シャッター51Sは、破線で示すようにバイパス風路43から横方向に退避した「開放位置」OPにある。シャッター51Sは、モータ51Bで駆動されると、高さ寸法がH1(270mm)で、入口43Aの横幅寸法がW7(30mm)のバイパス風路43を閉鎖する位置(閉鎖位置CL)まで移動する。つまり、最大限移動した場合、閉鎖位置CLにおいて、その閉鎖状態を維持する。
「除湿運転モード」は、室内を除湿するための運転モードである。例えば、ユーザーが入力操作部17の運転スイッチ(主電源スイッチ)をONして、主制御装置18を起動させることで、除湿機1の運転を開始することができる。
以上の説明では、除湿運転モードの運転可否(判定基準)の一例とし、湿度センサー61の湿度検知の閾値を50%としたが、閾値はこれ以外の値でもよい。
「空気清浄運転モード」は、室内空気を清浄化するための運転モードである。例えば、使用者が入力操作部17の主電源スイッチをONし、運転モード切換スイッチ17Sで空気清浄運転モードを選択すると、除湿機1は、以下のようなステップで、空気清浄運転を開始する。
除湿空気清浄運転モードは、室内の湿度や空気の汚れの状態に応じて、除湿機1の運転モードを、除湿運転モードまたは空気清浄運転モード等に切り替えるものである。例えば、使用者が入力操作部17の主電源スイッチをONし、運転モード切換スイッチ17Sで除湿空気清浄運転モードを選択すると、除湿機1は除湿空気清浄運転を、以下の通り開始する。
まず、入力操作部17で主電源スイッチ(図示せず)をONにし、運転モード切換スイッチ17Sを操作する。こうして「除湿運転」や「空気清浄運転」等の運転モードを選択する。
そして、初期の異常判定で異常がなかった場合、ルーバー13を開放する指令信号を、駆動回路13Aに発する(ステップS300)。
本開示の一つの実施例に係る除湿機1は、
吸込口11と吹出口12とが形成された筐体3(ケース10)と、
吸込口11から吹出口12へ至る気流AFを発生させる送風手段(ファン21)と、
筐体3(ケース10)の内部に配置された空気清浄化手段として2つのフィルター41、42と、
筐体3(ケース10)の内部に配置され、気流AFの中の水分を除去する除湿手段としての蒸発器31と、を備える。
筐体3の内部には、
気流AFが、フィルター41、42を通過して蒸発器31に至る第一の風路(メイン風路44)と、
気流AFが、フィルター41、42を通過せずに、蒸発器31に至る第二の風路(バイパス風路43)と、
第二の風路(バイパス風路43)の入口43Aの開口度(風路断面積)を、全開から全閉まで変化させ、バイパス気流AF2の量を制御する気流制限手段51と、を有する。
第二の風路(バイパス風路43)の入口43Aは、フィルター41、42の外周側に位置し、
第二の風路(バイパス風路43)の出口43Bは、入口43Aよりもフィルター41、42の中心側(中心線BLに接近する側)に位置している。
更に、除湿機1は、
送風手段21、気流制限手段51及び電動圧縮機6を制御する制御装置(主制御装置18)を具備し、
制御装置(主制御装置18)は、環境情報に応じて気流制限手段51を制御する。
空気清浄化手段は、気流AFから塵埃を捕集する第一のフィルター41と、気流AFから匂いの成分を捕集する(活性炭フィルター等の)第二のフィルター42と、を有する構成である。この構成であるため、塵埃と臭いの除去ができる除湿機1を提供することができる。
筐体3の前面に吸込口11が存在し、
筐体3の前方から吸込口11を見た場合、第一のフィルター41及び第二のフィルター42の投影面よりも、吸込口11及び第二の風路(バイパス風路43)の入口43Aを含む投影面の方が大きい。すなわち、図6と図9で説明したように、第二の風路(バイパス風路43)は、第一のフィルター41および第二のフィルター42の、それぞれの左右端面よりも、左右方向に、第二の風路(バイパス風路43)の横幅寸法W7(30mm)だけ広がっている。このため、除湿運転時には、フィルター41、42の中を通過させずに、第二の風路(バイパス風路43)から蒸発器31に空気を直接供給できる。また、この構成は、第一のフィルター41と第二のフィルター42の面積を犠牲にしないので、空気清浄化作用を損なうこともない。
第二の実施例に係る除湿機1は、
吸込口11と吹出口12とが形成された筐体3(ケース10)と、
吸込口11から吹出口12へ至る気流AFを発生させる送風手段(ファン21)と、
筐体3(ケース10)の内部に配置された空気清浄化手段として2つのフィルター41、42と、
筐体3(ケース10)の内部に配置され、気流AFの中の水分を除去する除湿手段としての蒸発器31と、を備える。
筐体3の内部には、
気流AFが、フィルター41、42を通過して蒸発器31に至る第一の風路(メイン風路44)と、
気流AFが、フィルター41、42を通過せずに、蒸発器31に至る第二の風路(バイパス風路43)と、
第二の風路(バイパス風路43)の入口43Aの開口度(風路断面積)を、全開から全閉まで変化させ、バイパス気流AF2の量を制御する気流制限手段51と、を有する。
筐体3の前面に前記吸込口11が存在し、
吸込口11は、筐体3の前方側から見た投影形状が、正方形又は長方形を呈し、
第二の風路の入口43Aは、吸込口11の左右両側縁部の外側に連続して隣接し、かつ、左右対称に形成されており、
蒸発器31は、筐体3の前方側から見た場合、吸込口11の投影形状の外縁よりも実質的に内側に位置している。
更に、送風手段、気流制限手段51及び電動圧縮機6を制御する制御装置(主制御装置1818を具備し、
制御装置18は、環境情報に応じて気流制限手段51を制御する。
第三の実施例に係る除湿機1は、
吸込口11と吹出口12とが形成された筐体3(ケース10)と、
吸込口11から吹出口12へ至る気流AFを発生させる送風手段(ファン21)と、
筐体3(ケース10)の内部に配置された空気清浄化手段として2つのフィルター41、42と、
筐体3(ケース10)の内部に配置され、気流AFの中の水分を除去する除湿手段としての蒸発器31と、を備える。
筐体3の内部には、
気流AFが、フィルター41、42を通過して蒸発器31に至る第一の風路(メイン風路44)と、
気流AFが、フィルター41、42を通過せずに、蒸発器31に至る第二の風路(バイパス風路43)と、
バイパス気流AF2を制御する気流制限手段51と、を有する。
そして、第一の風路を通過したメイン気流AF1と、第二の風路を通過したバイパス気流AF2とが合流する位置には、蒸発器31に至る直前を横切るように、多数の通気窓38Aが枠38Bによって区画された整流部材38を配置した。
更に、送風手段21、気流制限手段51及び電動圧縮機6を制御する制御装置(主制御装置18)を具備し、制御装置は、環境情報に応じて気流制限手段51を制御する。
図19と図20は、実施の形態2の除湿機1を示すものである。
図19は、実施の形態2の除湿機2の除湿運転時の空気の流れを示した縦方向断面図である。図20は、実施の形態2の除湿機2の空気清浄運転時の空気の流れを示した縦方向断面図である。なお、図1から図18によって説明した実施の形態1の構成と同一又は相当部分は、同じ符号を付けている。
この実施の形態2では、以下の除湿機2を開示した。この実施の形態2で例示した除湿機2は、
吸込口11と吹出口12とが形成された筐体3(ケース10)と、
吸込口11から吹出口12へ至る気流AFを発生させる送風手段(ファン21)と、
筐体3(ケース10)の内部に配置された空気清浄化手段として2つのフィルター41、42と、
筐体3(ケース10)の内部に配置され、気流AFの中の水分を除去する除湿手段としての蒸発器31と、を備える。
筐体3の内部には、
気流AFが、フィルター41、42を通過して蒸発器31に至る第一の風路(メイン風路44)と、
気流AFが、フィルター41、42を通過せずに、蒸発器31に至る第二の風路(バイパス風路43)と、
第二の風路(バイパス風路43)のバイパス気流AF2の量を制御する気流制限手段51と、を有する。
第二の風路の入口43Aは、フィルター41、42における、その下方の外周側に位置し、
第二の風路43の出口43Bは、入口43Aよりもフィルター41、42の中心側(中心線BLに接近する側)に位置している。
更に、送風手段、気流制限手段51及び電動圧縮機6を制御する制御装置(主制御装置18)を具備し、
主制御装置18は、環境情報に応じて気流制限手段51を制御する。
図21から図26は、実施の形態3の除湿機1を示すものである。図21から図23は、実施の形態3の除湿機1を示すものである。図21は、除湿機の一部簡略斜視図である。図22は、図21の除湿機1の、C-C線部分をカットした場合の、前ケース部分の分解横断面図である。図23は、図21の除湿機1で使用している吸込口枠の正面図である。図24は、図21に示した除湿機1の左右中央部における縦(垂直)断面図である。図25は、図21に示した除湿機1の主要な制御関係部品を示すブロック図である。なお、図1から図20によって説明した各実施の形態の構成と同一又は相当部分は、同じ符号を付けている。
以上のように、この実施の形態3では、吸込口枠50を前ケース10Fの中に組み込んで、バイパス風路43を形成していた。
すなわち、実施の形態1、2で示したように、2つのフィルター41、42の外周端面を利用してバイパス風路43を形成していない構成である。
そのため、それらフィルター41、42の外周端面の位置や形状等によって、通気性に影響を受けないバイパス風路43が形成される。言い換えると、フィルター41、42が交換や点検のために、一旦取り外され、その後、再度設置されて運転された場合に、フィルター41、42の設置位置が変化してしまうと、バイパス風路43の通気性が低下する懸念がある。
そして、主制御装置18は、人感知部64からの人感知結果に応じて、気流制限手段51のシャッター51Sの開閉動作を制御するものであった。
この構成であるから、この実施の形態3によれば、ユーザー等の人の在室の有無に応じて、空気清浄運転と除湿運転を適切に、かつ自動的に選択することができる。
(1)「空気清浄化優先モード」の場合は、気流制限手段51によって、第二の風路43の状態を、バイパス気流AF2が流れる状態から流れない状態に変更すること、又は、気流制限手段51による第二の風路43の閉鎖状態を維持すること(バイパス気流AF2が流れない状態を維持すること)。
(2)「運転音低減モード」の場合は、気流制限手段51によって、第二の風路43の状態を、バイパス気流AF2が流れない態から流れる状態に変更すること、又は、気流制限手段51による第二の風路43の開放状態を維持すること(バイパス気流AF2が流れる状態を維持すること)。
次に、実施の形態4について説明する。本実施の形態4の除湿機1の構成を図26に示す。図26は、実施の形態4の除湿機の左右中央部における縦(垂直)断面図である。なお、図1から図25によって説明した各実施の形態の構成と同一又は相当部分は、同じ符号を付けて、重複した説明を省略する。
以上のように、この実施の形態4で開示した除湿機1は、実施の形態1に加えて、明るさを検知する照度判定部65と照度センサー65Sとを備える。照度判定部65は、照度センサー65Sからの照度計測データを利用して照度を判定する。そして照度の判定結果に応じて主制御装置18は、気流制限手段51によってバイパス風路43の開閉度合いを決定する。つまり、部屋の明るさに応じて主制御装置18が、バイパス風路43の開閉を自動的に制御するため、空気清浄運転と除湿運転を適切に選択できる。
2 除湿機、
3 筐体、
5 窓、
6 電動圧縮機、
7 貯水タンク、
8 操作表示基板
10 ケース、
10F 前ケース、
10B 後ケース、
11 吸込口、
11A 吸込口カバー、
11A1 縦桟、
11A2 横桟、
12 吹出口、
13 ルーバー、
15 操作報知部、
16 基板ボックス、
17 入力操作部、
17S 運転モード切換スイッチ
18 主制御装置、
19 電源部、
20 車輪、
21 ファン、
21A モータ、
22 冷媒配管、
23 報知部、
23D 表示部、
23V 音声報知部、
24 CPU、
24T タイマー部、
25 記憶手段
26 無線通信部、
27 駆動回路、
28 駆動回路、
29 駆動回路、
31 蒸発器、
32 凝縮器、
33 第一の空間、
34 第二の空間、
35 室温センサー、
36 ファンケース、
37 ベルマウス部、
38 整流部材、
41 HEPAフィルター、
42 活性炭フィルター、
43 バイパス風路、
44 メイン風路、
46 風洞、
46A 導風面、
50 吸込口枠、
50B 段部、
50R1 周壁(仕切り壁)、
50R2 周壁(仕切り壁)、
50L1 周壁(仕切り壁)、
50L2 周壁(仕切り壁)、
51 気流制限手段、
51B モータ、
51C センサー、
51D センサー、
51S シャッター、
53 開閉検知部、
61 湿度センサー、
62 塵埃センサー、
63 ガスセンサー、
64 人感知部(周囲情報取得部)、
64S 赤外線センサー、
65 照度判定部(周囲情報取得部)、
65S 照度センサー。
Claims (33)
- 吸込口と吹出口とが形成された筐体と、
前記吸込口から前記吹出口へ至る気流を発生させる送風手段と、
前記筐体の内部に配置された空気清浄化手段と、
前記筐体の内部に配置され、前記気流の中の水分を除去する除湿手段と、
を備える除湿機であって、
前記筐体の内部に形成され、前記気流が前記空気清浄化手段を通過して前記除湿手段に至る第一の風路と、
前記筐体の内部に形成され、前記気流が前記空気清浄化手段を通過せずに前記除湿手段に至る第二の風路と、
前記第二の風路の前記気流の流れを制限する気流制限手段と、
前記除湿手段に冷媒を供給する圧縮機と、
前記送風手段、前記気流制限手段及び前記圧縮機を制御する制御装置と、
を有し、
前記制御装置は、環境情報及び周囲情報の少なくとも一つに応じて前記気流制限手段を制御することを特徴とする除湿機。 - 前記環境情報は、湿度を示す第1情報と、空気の清浄度を示す第2情報との、少なくとも何れか一方を含むこと特徴とする請求項1に記載の除湿機。
- 前記制御装置は、前記第1情報に関して設定した第1閾値と前記第2情報に関して設定した第2閾値2とが共に満たされた場合、前記送風手段と前記気流制限手段を駆動して、前記第二の風路に前記気流が流れるようにすることを特徴とする請求項2に記載の除湿機。
- ユーザーの入力操作を受け付ける入力操作部と、当該入力操作部で受け付けた入力結果を報知する報知部と、を更に備え、
前記入力操作部には、電源スイッチの操作部を設け、
前記制御装置は、前記電源スイッチが投入された場合、前記送風手段を駆動して前記筐体の内部に前記気流を発生させ、
前記制御装置は、前記送風手段の運転中に、前記環境情報を取得し、前記第1情報に関して設定した第1閾値1と前記第2情報に関して設定した第2閾値2とが共に満たされた場合、前記気流制限手段を駆動して、前記第二の風路に前記気流が流れるようにすることを特徴とする請求項2に記載の除湿機。 - 前記圧縮機は、モータの動力で冷媒の圧縮動作を行う電動圧縮機であり、
前記制御装置は、前記電動圧縮機と、前記送風手段と、前記気流制限手段のために、それぞれ指令信号を発するものであり、
前記制御装置は、前記環境情報又は前記周囲情報の少なくとも一つを取得して、前記指令信号を発するかどうかを判定する動作プログラムを有していることを特徴とする請求項1から請求項4の何れか1項に記載の除湿機。 - 前記送風手段は、前記指令信号の一つを受けて、送風能力を変更できるものであることを特徴とする請求項5に記載の除湿機。
- 前記周囲情報は、人の存在を示す第3情報と、除湿対象の空間の明るさを示す第4情報との、少なくとも一方を含むことを特徴とする請求項1に記載の除湿機。
- 前記制御装置は、赤外線センサーからの検知情報に基づいて前記第3情報を取得し、
前記第3情報に関して設定した第3閾値が満たされた場合、第1動作および第2動作の何れか一方を行うことを特徴としており、
第1動作は、空気清浄化優先モードの場合、前記気流制限手段によって、前記第二の風路の状態を、前記気流が流れる状態から流れない状態に変更する動作、又は、前記気流制限手段による前記第二の風路の閉鎖状態を維持する動作、であり、
第2動作は、運転音低減モードの場合、前記気流制限手段によって、前記第二の風路の状態を、前記気流が流れない状態から流れる状態に変更する動作、又は、前記気流制限手段による前記第二の風路の開放状態を維持する動作、である請求項7に記載の除湿機。 - 前記制御装置は、照度センサーからの検知情報に基づいて前記第4情報を取得し、
前記第4情報に関して設定した第4閾値が満たされた場合、前記気流制限手段を駆動して、前記第二の風路に前記気流が流れる状態にすることを特徴とする請求項7に記載の除湿機。 - 前記第二の風路の入口は、前記空気清浄化手段の外周側に位置し、
前記第二の風路の出口は、前記入口よりも前記空気清浄化手段の中心側に位置していることを特徴とする請求項1から請求項9の何れか1項に記載の除湿機。 - 前記空気清浄化手段は、前記第一の風路に設置された平板状のフィルターであり、
前記フィルターの最大横幅寸法よりも、前記除湿手段の蒸発器の横幅寸法を大きく設定したことを特徴とする請求項1から請求項9の何れか1項に記載の除湿機。 - 前記空気清浄化手段は、前記気流から塵埃を捕集する第一のフィルターと、前記気流から匂いの成分を捕集する第二のフィルターと、を有することを特徴とする請求項1から請求項9の何れか1項に記載の除湿機。
- 前記第一のフィルターは前記第二のフィルターよりも前記気流の上流側に配置され、
前記第二のフィルターは当該第一のフィルターに接触又は近接して配置されていることを特徴とする請求項12に記載の除湿機。 - 前記筐体の前面に前記吸込口が存在し、
前記筐体の前方から前記吸込口を見た場合、前記第一のフィルター及び前記第二のフィルターの投影面よりも、前記吸込口および前記第二の風路の入口を含む投影面の方が大きいことを特徴とする請求項11から請求項13の何れか1項に記載の除湿機。 - 前記筐体の前面に前記吸込口が存在し、
前記筐体の前方から前記吸込口側を見た場合、前記第二の風路の入口は、前記吸込口の左右の両側縁よりも外側の位置に存在することを特徴とする請求項11から請求項13の何れか1項に記載の除湿機。 - 前記入口の開口面積は、前記第二の風路の出口の開口面積と同等、またはそれよりも大きいことを特徴とする請求項15に記載の除湿機。
- 前記入口から、前記第二の風路の出口まで、前記第二の風路は直線的に形成されていることを特徴とする請求項15に記載の除湿機。
- 前記吸込口の口縁から前記気流の下流側へ連続した仕切り壁を形成し、
前記仕切り壁によって、前記入口から前記第二の風路の出口までの間を二つの空間に仕切り、
前記二つの空間の一つは、前記第一の風路であり、
前記二つの空間の他の一つは、前記第二の風路であることを特徴とする請求項11から請求項13の何れか1項に記載の除湿機。 - 前記第一のフィルターは、HEPAフィルターであり、
前記第一のフィルターは、前記第一の風路から、除湿すべき空気が通過する場合と通過しない場合の何れにおいても、所定の厚さを維持する構造であることを特徴とする請求項11から請求項13の何れか1項に記載の除湿機。 - 前記第一のフィルターと前記第二のフィルターとが重なり合った状態の外周面が、前記第二の風路の内側壁面を構成していることを特徴とする請求項12に記載の除湿機。
- 前記第一のフィルターと前記第二のフィルターとのそれぞれは、フィルター本体と、当該フィルター本体の外周縁部を覆う枠体と、をそれぞれ備え、
前記枠体の外周面が、前記第二の風路の内側壁面を構成していることを特徴とする請求項12に記載の除湿機。 - 前記第一の風路を通過した前記気流と、前記第二の風路を通過した前記気流とが合流する位置には、前記除湿手段を構成する蒸発器に至る直前を横切るように、多数の通気窓を備えた整流部材を配置したことを有することを特徴とする請求項1から請求項4の何れか1項に記載の除湿機。
- 前記整流部材は、前記蒸発器との対向間隔が一定の範囲に設定されていることを特徴とする請求項22に記載の除湿機。
- 前記整流部材は、多数の通気窓を有する平板形状の構造物であることを特徴とする請求項22又は請求項23に記載の除湿機。
- 前記通気窓は、前記気流の流れる方向に所定寸法以上の長さの平坦な案内面を有する枠で囲まれていることを特徴とする請求項22から請求項24の何れか1項に記載の除湿機。
- 前記整流部材は、前記空気清浄化手段との対向間隔が一定の範囲に設定されていることを特徴とする請求項22から請求項25の何れか1項に記載の除湿機。
- 前記一定の範囲は、10mmから15mmの範囲であることを特徴とする請求項23に記載の除湿機。
- 前記一定の範囲は、15mmから20mmの範囲であることを特徴とする請求項26に記載の除湿機。
- 前記筐体の前面に前記吸込口が存在し、
前記筐体の前方から前記吸込口を見た場合、前記第二の風路の入口は、前記吸込口の左右両側に、それぞれ配置されていることを特徴とする請求項1から請求項13の何れか1項に記載の除湿機。 - 前記気流制限手段は、前記第二の風路における前記気流を通過させること及び遮断することの何れかの状態を選択できる開閉手段であることを特徴とする請求項1から請求項13の何れか1項に記載の除湿機。
- 前記気流制限手段は、前記第二の風路における前記気流の通過量を複数段階に制御できる手段であることを特徴とする請求項1から請求項13の何れか1項に記載の除湿機。
- 前記気流制限手段は、前記第二の風路における気流の通過量を制御できるシャッターを有したものであることを特徴とする請求項1から請求項13の何れか1項に記載の除湿機。
- 前記気流制限手段は、電気信号を受けて前記シャッターの位置を変化させる位置制御機能付きのモータを有したことを特徴とする請求項32に記載の除湿機。
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JP2000055424A (ja) * | 1998-08-04 | 2000-02-25 | Sanyo Electric Co Ltd | 空気清浄機 |
JP2000234761A (ja) * | 1999-02-15 | 2000-08-29 | Mitsubishi Electric Corp | 除湿機 |
JP2004150766A (ja) * | 2002-10-31 | 2004-05-27 | Max Co Ltd | 屋根裏空調装置 |
JP2004211913A (ja) * | 2002-12-26 | 2004-07-29 | Sanyo Electric Co Ltd | 除湿機 |
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JP2000055424A (ja) * | 1998-08-04 | 2000-02-25 | Sanyo Electric Co Ltd | 空気清浄機 |
JP2000234761A (ja) * | 1999-02-15 | 2000-08-29 | Mitsubishi Electric Corp | 除湿機 |
JP2004150766A (ja) * | 2002-10-31 | 2004-05-27 | Max Co Ltd | 屋根裏空調装置 |
JP2004211913A (ja) * | 2002-12-26 | 2004-07-29 | Sanyo Electric Co Ltd | 除湿機 |
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