CN109863348B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN109863348B CN109863348B CN201680090181.9A CN201680090181A CN109863348B CN 109863348 B CN109863348 B CN 109863348B CN 201680090181 A CN201680090181 A CN 201680090181A CN 109863348 B CN109863348 B CN 109863348B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
Abstract
The invention provides an air conditioner which can detect the blockage of a humidifier with high precision by a simple device and can restrain the air leakage from an indoor unit caused by the blockage of the humidifier. The air conditioner is provided with: an outdoor unit having at least a compressor and an outdoor heat exchanger; and an indoor unit having a blower, an indoor heat exchanger for exchanging heat between air from the blower and refrigerant from an outdoor unit, a humidifier for humidifying the air heat-exchanged by the indoor heat exchanger, and a partition plate provided with the humidifier and separating a space on the indoor heat exchanger side including the humidifier as a 1 st space and a space on the outflow side of the air humidified by the humidifier as a 2 nd space, the air conditioner comprising: an air outflow hole provided in the partition plate and communicating the 1 st space with the 2 nd space; and a blockage detection device which is provided with an opening and closing door which can freely open and close the air outlet hole from the 2 nd space side, and detects and reports that the humidifier is blocked when the air outlet hole is opened by the opening and closing door because the air pressure of the 1 st space is higher than the air pressure of the 2 nd space.
Description
Technical Field
The present invention relates to an air conditioner including a clogging detection device that detects clogging of a humidifier in an indoor unit.
Background
A vaporizing humidifier mounted in a conventional air conditioner is deteriorated due to accumulation of impurities contained in supply water, and the like, and a period until the humidifier is clogged is greatly different depending on water quality, a use environment of the humidifier, an operation time, and the like. The presence or absence of clogging of the humidifier is determined by visual observation mainly in a periodic inspection, or by measuring a differential pressure before and after the operation of the humidifier using a pressure gauge provided in advance.
As another technique, there is a technique of detecting the rotation speed of a motor of a blower and determining clogging of a humidifier based on a change in the detected rotation speed (see, for example, patent document 1).
Further, there is also a technique of determining a clogging state of a filter by checking a floating height of a float floating in an ascending water flow (for example, see patent document 2).
Patent document 1: japanese patent laid-open No. 2001-149728
Patent document 2: japanese utility model registration No. 3028048
In a conventional vaporizing humidifier incorporated in an air conditioner, if the pressure in the indoor unit increases due to clogging of the humidifier, air leakage causes dew condensation, or the like, and therefore it is necessary to detect the pressure as early as possible. However, when the detection is performed by visual observation, it is difficult to detect the clogging inside the humidifier. In a form in which display is performed with a lapse of a certain time, such as an air filter, accuracy is low for an apparatus such as a humidifier in which a period until clogging is largely different due to local water quality, an operation state, and the like.
The measurement of clogging by a differential pressure before and after the operation of the humidifier is highly accurate, but requires a pressure detection element, a microcomputer, software for clogging detection, a power supply, and the like, and has a problem of increasing the introduction cost.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air conditioner capable of accurately detecting clogging of a humidifier with a simple device and suppressing air leakage from an indoor unit due to the clogging of the humidifier.
The air conditioner of the invention comprises: an outdoor unit having at least a compressor and an outdoor heat exchanger; and an indoor unit having: a blower; an indoor heat exchanger that exchanges heat between air from the blower and refrigerant from the outdoor unit; a humidifier that humidifies the air heat-exchanged by the indoor heat exchanger; and a partition plate provided with a humidifier and separating a space on an indoor heat exchanger side including the humidifier as a 1 st space and a space on an outflow side of air humidified by the humidifier as a 2 nd space, wherein the air conditioner includes: an air outflow hole provided in the partition plate and communicating the 1 st space with the 2 nd space; and a blockage detection device which is provided with an opening and closing door which can freely open and close the air outlet hole from the 2 nd space side, and detects and reports that the humidifier is blocked when the air outlet hole is opened by the opening and closing door because the air pressure of the 1 st space is higher than the air pressure of the 2 nd space.
Further, the following configuration is possible: the jam detection device is provided with: opening and closing the door; a magnet provided at one end of the opening/closing door, and joined to the partition plate at a position above the air outlet hole to close the air outlet hole by the opening/closing door; and a reed switch provided on the partition plate, and turned on by a magnetic force of the magnet when the opening/closing door opens the air outlet hole, thereby reporting detection of clogging of the humidifier.
Further, the following configuration is possible: the partition plate is composed of a 1 st partition plate which is arranged in a manner of being orthogonal to the air flow from the blower, a 2 nd partition plate which horizontally extends from the front end of the 1 st partition plate to the 1 st space side, and a 3 rd partition plate which vertically extends from the front end of the 2 nd partition plate to the upper side, wherein an air outlet which communicates the 1 st space with the 2 nd space is arranged on the 2 nd partition plate, and the blockage detection device comprises: opening and closing the door; and a closed circuit monitoring unit having a closed circuit formed by an open/close door that closes the air outflow hole, and configured to detect and report a humidifier blockage when the closed circuit is interrupted by the open/close door opening the air outflow hole.
Further, the following configuration is possible: the closed circuit monitoring unit starts counting of time when the clogging of the humidifier is detected, and reports the clogging of the humidifier when the interruption state of the closed circuit is continued until the counted time elapses for a certain time.
According to the present invention, when the opening/closing door opens the air outflow hole due to the air pressure in the 1 st space being higher than the air pressure in the 2 nd space, the clogging of the humidifier is detected and reported, so that the clogging of the humidifier can be known immediately. Further, when the air outlet hole is opened by the opening/closing door, the air on the 1 st space side having a high air pressure can be made to flow into the 2 nd space side, and therefore, the increase in the internal pressure of the indoor unit can be alleviated. Therefore, air leakage from the gap of the casing constituting the appearance of the indoor unit can be suppressed. In addition, the occurrence of dew condensation due to air leakage can be prevented.
Drawings
Fig. 1 is a plan view showing a schematic configuration of an indoor unit of an air conditioner according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of the inside of the indoor unit of fig. 1 as viewed from the side.
Fig. 3 is an enlarged schematic view of the clogging detecting device of fig. 2.
Fig. 4 is a schematic view of the open/close door of the jam detection device shown in fig. 3 in an open state.
Fig. 5 is a schematic view of an indoor unit of an air conditioner according to embodiment 2 of the present invention, as viewed from the side.
Fig. 6 is an enlarged schematic view of the clogging detecting device of fig. 5.
Fig. 7 is a schematic view of the open/close door of the jam detection device shown in fig. 6 in an open state.
Detailed Description
Embodiment 1.
Fig. 1 is a plan view showing a schematic configuration of an indoor unit of an air conditioner according to embodiment 1 of the present invention, and fig. 2 is a schematic view showing the inside of the indoor unit of fig. 1 as viewed from the side.
As shown in fig. 2, the air conditioner 200 according to embodiment 1 includes an outdoor unit 10 and an indoor unit 20 connected to the outdoor unit 10 via a gas pipe 31 and a liquid pipe 32. The outdoor unit 10 includes a compressor, a four-way valve for switching the flow path of the refrigerant, an outdoor heat exchanger, a blower for supplying air to the outdoor heat exchanger, and the like. The indoor unit 20 is installed in a ceiling of a building, for example. The indoor unit 20 is connected to the intake port and the discharge port via pipes, respectively.
The compressor is constituted by, for example, an inverter compressor capable of capacity control, and sucks a low-temperature low-pressure gas refrigerant, compresses the gas refrigerant, and discharges a high-temperature high-pressure gas refrigerant. The four-way valve switches between the flow of the refrigerant during the heating operation and the flow of the refrigerant during the cooling operation. The outdoor heat exchanger functions as an evaporator during a heating operation and as a condenser during a cooling operation, and exchanges heat between air from the blower and the refrigerant.
As shown in fig. 1 and 2, the indoor unit 20 includes an indoor heat exchanger 30, a blower 40, a humidifier 50, a water tray 60 provided below the indoor heat exchanger 30 and the humidifier 50, a clogging detection device 70 that detects and reports clogging of the humidification module 51 of the humidifier 50, and the like.
The gas pipe 31 and the liquid pipe 32 are connected to the indoor heat exchanger 30, and function as a condenser during the heating operation and as an evaporator during the cooling operation, thereby performing heat exchange between the air from the blower 40 and the refrigerant. The liquid pipe 32 is provided with an expansion valve 33 that decompresses and expands the refrigerant. The expansion valve 33 is, for example, an electronic expansion valve capable of controlling the opening degree of the valve. The blower 40 includes a motor 41, a fan case 42, and a fan rotatably housed in the fan case 42. The fan is connected to a rotating shaft of the motor 41. The blower 40 is provided in a space partitioned by the wall plate 43 into the indoor heat exchanger 30 side.
The humidifier 50 includes a humidification module (humidifying material) 51 as a vaporization/evaporation unit of water, a shower head 52 for dripping water from the upper portion to the humidification module 51 to permeate the humidification module 51, an electromagnetic valve 53, and the like. A water supply pipe 54 is connected to the solenoid valve 53. In the humidifier 50, the air flowing in through the indoor heat exchanger 30 passes through the humidification module 51, and the moisture permeating through the humidification module 51 is vaporized and evaporated to humidify the air.
The drain pan 60 is a container for storing the water that is not vaporized by the humidification module 51 and the dew condensation water generated in the indoor heat exchanger 30, and is provided below the humidifier 50 and the indoor heat exchanger 30. The drain pan 60 includes a drain port 61 for discharging the stored water to the outside of the indoor unit 20. A drain pipe is connected to the drain port 61.
The indoor unit 20 described above is provided with a partition plate 80 made of, for example, a metal plate, and the partition plate 80 separates a space on the side of the indoor heat exchanger 30, excluding a space on the side of the blower 40, from the space inside the indoor unit 20, as a 1 st space a, and a space on the side of the outlet of the air humidified by the humidifier 50, as a 2 nd space B. Further, a humidifier 50 is also provided in the 1 st space a.
The partition plate 80 is provided to the water receiving tray 60. The partition plate 80 is provided with an opening 81 through which air humidified by the humidifier 50 passes, at a position on the rear surface of the humidifier 50. The partition plate 80 is provided with: an air outlet 82 for allowing the air in the 1 st space a to flow into the 2 nd space B; and an open/close door 71 of the clogging detection device 70 for openably closing the air outlet 82. The jam detector 70 will be described later. The indoor unit 20 is provided with a control board 90 connected to a remote control 100.
The control board 90 is mounted with, for example, a microcomputer 90a (see fig. 3 and 4). The microcomputer 90a instructs the outdoor unit 10 to perform the heating operation or the cooling operation based on the operation of the operation key of the remote controller 100, and controls the rotation speed of the motor 41 of the blower 40 in accordance with the setting of the air volume key. The microcomputer 90a opens the electromagnetic valve 53 during the heating operation to supply water to the humidification module 51 of the humidifier 50, and closes the electromagnetic valve 53 to shut off the water supply to the humidification module 51 when the clogging detection device 70 detects clogging of the humidification module 51.
In the indoor unit 20 configured as described above, the air sent by the blower 2 is cooled or heated by the indoor heat exchanger 30, and the air conditioning is performed indoors. As a flow of the refrigerant during heating, the high-temperature and high-pressure gas refrigerant compressed by the compressor of the outdoor unit 10 flows into the indoor heat exchanger 30 through the four-way valve and the gas pipe 31. The high-temperature and high-pressure gas refrigerant flowing into the indoor heat exchanger 30 is condensed by heat exchange with the air supplied from the blower 40, and flows out of the indoor heat exchanger 30 as a low-temperature and high-pressure liquid refrigerant. The low-temperature high-pressure liquid refrigerant flowing out of the indoor heat exchanger 30 is expanded and decompressed by the expansion valve 33 to become a low-temperature low-pressure gas-liquid two-phase refrigerant, and then is returned to the outdoor unit 10 through the liquid pipe 32.
On the other hand, the air heated by the indoor heat exchanger 30 is sent to the outside of the indoor unit 20 through the humidifier 50 and the opening 81 of the partition plate 80 as indicated by arrows (broken lines) shown in fig. 1, and heats the inside of the room. When the air passes through the humidifier 50, moisture permeated in the humidification module 51 is vaporized and evaporated by the air, and the air is humidified.
Next, the structure of the clogging detection device 70 will be described with reference to fig. 3 and 4.
Fig. 3 is an enlarged schematic view showing the jam detector of fig. 2, and fig. 4 is a schematic view showing a state where an opening/closing door of the jam detector of fig. 3 is opened.
As described above, the clogging detection device 70 according to embodiment 1 is configured by the opening/closing door 71 that openably closes the air outlet hole 82 of the partition plate 80, the magnet 72 provided at one end of the opening/closing door 71, and the reed switch 73 provided on the partition plate 80. Instead of the reed switch 73, a hall IC may be used.
The opening/closing door 71 is provided on the surface of the partition plate 80 on the 2 nd space B side. The other end of the opening/closing door 71 is rotatably supported by a hinge portion 71a provided below the air outflow hole 82 of the partition plate 80. The opening/closing door 71 is engaged with the partition plate 80 at a position above the air outlet 82 by the magnetic force of the magnet 72 provided at one end, and closes the air outlet 82.
As shown in fig. 4, the reed switch 73 is provided at a position where it contacts the magnet 72 of the opening/closing door 71 when the opening/closing door 71 opens the air outflow hole 82, that is, when the opening/closing door 71 rotates downward about the hinge portion 71a as an axis. The reed switch 73 is turned on by the magnetic force of the magnet 72, and a signal for reporting the detection of the clogging of the humidification module 51 is input to the microcomputer 90a. This signal is output to the remote controller 100 via the microcomputer 90a. The signal is input to the microcomputer 90a, but the signal may be directly input to the remote control 100 via the control board 90.
The operation of the jam detector 70 configured as described above will be described.
The air sent from the blower 40 passes through the indoor heat exchanger 30 and further passes through the humidifier 50, and is sent out into the room. In the heating operation, as described above, when the air passes through the humidifier 50, the moisture permeated in the humidification module 51 is vaporized and evaporated by the air, and the air is humidified. While the air from the blower 40 passes through the humidifier 50, the opening/closing door 71 is engaged with the partition plate 80 by the magnetic force of the magnet 72 to close the air outflow hole 82.
On the other hand, as the indoor unit 20 runs, the humidification module 51 is gradually contaminated by dust in the air and scale components (calcium, magnesium, and the like) contained in the water. Further, when the humidification module 51 is clogged due to aged deterioration of the humidification module 51, the pressure loss ph (pa) of the humidification module 51 increases. When the flow rate of the air passing through the humidification module 51 decreases as the pressure loss ph (pa) increases, the air pressure in the 1 st space a in the indoor unit 20 becomes higher than the air pressure in the 2 nd space B.
When the air pressure in the 1 st space a in the indoor unit 20 is P1(Pa) and the air pressure in the 2 nd space B in the indoor unit 20 is P2(Pa), P1 is in the relationship of P2-Ph. Therefore, the larger the clogging amount (the larger Ph), the larger the air pressure P1 in the 1 st space a, and the larger the differential pressure Δ P12 (P1-P2) between the air in the 1 st space a and the air in the 2 nd space B. When the force pressing the opening/closing door 71 by the air pressure on the 1 st space a side generated based on the differential pressure Δ P12 is larger than the magnetic force of the magnet 72 joining the opening/closing door 71 and the partition plate 80, the opening/closing door 71 opens toward the 2 nd space B side with the hinge portion 71a as a fulcrum to open the air outflow hole 82, and the magnet 72 provided at one end portion contacts the reed switch 73.
At this time, the 1 st space a and the 2 nd space B communicate with each other through the open air outflow holes 82, and the air on the 1 st space a side having high air pressure flows into the 2 nd space B side. On the other hand, the reed switch 73 is turned on by the magnetic force of the magnet 72 being excited, and a signal for reporting the detection of clogging of the humidification module 51 is input to the microcomputer 90a of the control board 90. The microcomputer 90a transmits the inputted signal to the remote controller 100. When the signal is input, the remote controller 100 gives a notification by sound or a buzzer, and the display unit 100a displays the clogging of the humidification module 51.
As described above, according to embodiment 1, when the air pressure in the 1 st space a becomes higher than the air pressure in the 2 nd space B due to the clogging of the humidification module 51, and the air pressure in the 1 st space a becomes larger than the magnetic force of the magnet 72 that joins the opening/closing door 71 to the partition plate 80, the opening/closing door 71 is opened. When the opening/closing door 71 is opened, the magnetic reed switch 73 is turned on by the magnetic force of the magnet 72, and the detection of the clogging of the humidification module 51 is reported. With this configuration, the clogging of the humidification module 51 can be immediately known. In addition, since the structure is simple as described above, the introduction cost of the jam detector can be reduced.
When the opening/closing door 71 opens the air outlet hole 82, the air in the 1 st space a having a high air pressure flows into the 2 nd space B, and therefore, the increase in the air pressure in the 1 st space a of the indoor unit 20 can be alleviated. Therefore, air leakage from the casing forming the outer appearance of the indoor unit 20 can be suppressed, and thus the occurrence of dew condensation due to air leakage can be prevented.
Embodiment 2.
Fig. 5 is a schematic view of an indoor unit of an air conditioner according to embodiment 2 of the present invention, as viewed from the side. Fig. 6 is an enlarged schematic view showing the jam detector shown in fig. 5, and fig. 7 is a schematic view showing a state where the opening/closing door of the jam detector shown in fig. 6 is opened. In embodiment 2, the same or corresponding portions as or to embodiment 1 are denoted by the same reference numerals, and only portions different from embodiment 1 will be described.
In fig. 5, the partition wall plates 80 include a 1 st partition wall plate 80a provided on the drain pan 60 so as to be orthogonal to the air flow from the blower 40, a 2 nd partition wall plate 80b extending horizontally from the front end of the 1 st partition wall plate 80a toward the 1 st space a side, and a 3 rd partition wall plate 80c extending vertically upward from the front end of the 2 nd partition wall plate 80b and joined to the ceiling of the indoor unit 20. The partition plate 80 is formed of a metal plate that separates the space in the indoor unit 20 into the 1 st space a and the 2 nd space B. The 2 nd partition plate 80B is provided with air outlet holes 82 for allowing the air in the 1 st space a to flow into the 2 nd space B.
The jam detection device 150 in embodiment 2 includes: an opening/closing door 71 that closes the air outlet hole 82 from the 2 nd space B side so as to be openable and closable; and a closed circuit monitoring unit having a closed circuit 151 formed through the opening/closing door 71 for closing the air outflow hole 82, and reporting that the humidification module 51 is clogged when the closed circuit 151 is blocked by opening the air outflow hole 82 of the opening/closing door 71.
The opening/closing door 71 is provided on the 2 nd space B side surface of the 2 nd partition plate 80B. A magnet 72 joined to the 2 nd partition plate 80b is provided at one end of the opening/closing door 71, and the other end of the opening/closing door 71 is rotatably supported by a hinge portion 71a provided at the 2 nd partition plate 80b. The opening/closing door 71 is engaged with the 2 nd partition plate 80b by the magnetic force of the magnet 72 provided at one end portion thereof, and closes the air outflow hole 82. Although the hinge portion 71a is provided on the 3 rd partition plate 80c side, the hinge portion 71a may be provided at a position opposite to the side where the opening/closing door 71 is rotatably supported.
As shown in fig. 6, the closed circuit 151 is formed by: an opening/closing door 71; a 1 st lead 150a having one end contacting one surface of the opening/closing door 71 and the other end connected to the connector 90b of the control board 90; a 2 nd lead wire 150b having one end connected to the 2 nd partition plate 80b on the hinge portion 71a side and the other end connected to the connector 90c of the control board 90; and a power supply connected between the connectors 90b, 90c. For example, the microcomputer 90a functions as the closed circuit monitoring unit described above.
Next, the operation of the jam detector 150 configured as described above will be described.
While the air from the blower 40 passes through the humidifier 50, the opening/closing door 71 is engaged with the 2 nd partition plate 8b by the magnetic force of the magnet 72 to close the air outflow hole 82. When the humidification module 51 is clogged due to aging deterioration of the humidification module 51, the pressure loss ph (pa) of the humidification module 51 increases, and the air pressure in the 1 st space a in the indoor unit 20 becomes higher than the air pressure in the 2 nd space B as the pressure loss ph (pa) increases.
Assuming that the air pressure in the 1 st space a in the indoor unit 20 is P1(Pa) and the air pressure in the 2 nd space B in the indoor unit 20 is P2(Pa), P1 is in a relationship of P2-Ph. Therefore, the larger the clogging amount (the larger Ph), the larger the air pressure P1 in the 1 st space a, and the larger the differential pressure Δ P12 (P1-P2) between the air in the 1 st space a and the air in the 2 nd space B. When the pressure of the air on the 1 st space a side generated based on the differential pressure Δ P12 is greater than the magnetic force of the magnet 72 joining the opening/closing door 71 and the partition plate 80, the opening/closing door 71 opens toward the 2 nd space B side with the hinge portion 71a as a fulcrum to open the air outflow hole 82, thereby communicating the 1 st space a and the 2 nd space B and allowing the air on the 1 st space a side having a high air pressure to flow into the 2 nd space B side.
On the other hand, the microcomputer 90a detects the interruption of the closed circuit 151 due to the opening of the opening/closing door 71. At this time, the microcomputer 90a starts counting the time and determines whether or not the counted time has elapsed a predetermined fixed time. When the shut-off closed circuit 151 is reset before the counted time elapses for a certain time, the microcomputer 90a resets the counted time and continues the heating operation by humidification. When the counted time has elapsed for a certain period of time, the microcomputer 90a determines that the humidification module 51 is clogged, and transmits a signal to the remote controller 100 to notify that the humidification module 51 is clogged. When the signal is input, the remote controller 100 gives a notification by sound or a buzzer, and the display unit 100a displays the clogging of the humidification module 51.
As described above, according to embodiment 2, the closed circuit 151 formed via the opening/closing door 71 is blocked by the opening/closing door 71, and when the blocked state continues for a certain period of time, a notification is made by detecting a blockage in the humidification module 51. According to this configuration, in addition to the effect of making it possible to know the clogging of the humidification module 51, erroneous detection of clogging due to a temporary internal pressure increase can be avoided.
When the opening/closing door 71 opens the air outlet hole 82, the air in the 1 st space a having a high air pressure flows into the 2 nd space B, and therefore, the increase in the air pressure in the 1 st space a of the indoor unit 20 can be alleviated. Accordingly, air leakage from the gap of the casing constituting the external appearance of the indoor unit 20 can be suppressed, and accordingly, the occurrence of dew condensation due to air leakage can be prevented.
In embodiment 1, since the opening/closing door 71 needs to be vertical and the hinge portion 71a needs to be provided downward, the installation of the opening/closing door 71 is restricted. Further, there is a possibility that a temporary internal pressure increase due to external wind or the like is erroneously detected. On the other hand, in embodiment 2, the degree of freedom of the installation posture of the opening/closing door 71 is large compared to embodiment 1, and when the opening/closing door 71 is horizontally installed, the jam is detected when the open state of the opening/closing door 71 continues for a certain time or longer, and erroneous detection due to the temporary internal pressure rise described above can be avoided.
Further, as a method of releasing the notification of the clogging of the humidification module 51, in embodiment 1, it is necessary to access the inside of the indoor unit 20 and return the opening/closing door 71 to the original state, but in embodiment 2, the opening/closing door 71 is closed by the weight of the opening/closing door 71 and the gravity, and therefore, it is not necessary to access the inside of the indoor unit 20 every time the clogging is detected.
However, although the blockage detection devices 70 and 150 used in the humidifier 50 of the indoor unit 20 are configured in the embodiments 1 and 2, it is needless to say that the blockage detection devices can be applied to blockage detection of an air filter, a heat exchanger, and the like.
Description of reference numerals
An outdoor unit; an indoor unit; an indoor heat exchanger; a gas tube; a liquid tube; an expansion valve; a blower; a motor; a fan housing; a supply air outlet; wall panels; a humidifier; a humidification module; a sprinkler head; 53.. a solenoid valve; a water supply pipe; a water pan; 61.. a drain opening; an occlusion detection device; 71.. open and close the door; a hinge portion; a magnet; 73.. reed switch; 80.. partition plate; a No. 1 divider plate; 80b.. a No. 2 partition plate; 80c.. a No. 3 partition plate; an opening portion; 82.. an air outflow hole; 90.. a control substrate; a microcomputer; 90b, 90c. A remote controller; 100a.. a display portion; a jam detection device; 1 st conductive line; a No. 2 wire; closing the circuit; 200.. an air conditioner; 1 st space; no. 2 nd space.
Claims (2)
1. An air conditioner is provided with:
an outdoor unit having at least a compressor and an outdoor heat exchanger; and
an indoor unit, comprising: a blower; an indoor heat exchanger that exchanges heat between air from the blower and refrigerant from the outdoor unit; a humidifier that humidifies the air heat-exchanged by the indoor heat exchanger; and a partition plate provided with the humidifier, and separating a space on the side of the indoor heat exchanger including the humidifier as a 1 st space and a space on the side of the air humidified by the humidifier as a 2 nd space, wherein an opening through which the air humidified by the humidifier passes is provided at a position on the back surface of the humidifier,
the air conditioner is characterized by comprising:
an air outflow hole provided in the partition plate and communicating the 1 st space with the 2 nd space; and
a blockage detection device which is provided with an opening/closing door which can freely open and close the air outlet hole from the 2 nd space side, and detects and reports that the humidifier is blocked when the air outlet hole is opened by the opening/closing door due to the fact that the air pressure of the 1 st space is higher than the air pressure of the 2 nd space,
the partition plate is composed of a 1 st partition plate disposed so as to be orthogonal to the air flow from the blower, a 2 nd partition plate extending horizontally from the front end of the 1 st partition plate toward the 1 st space side, and a 3 rd partition plate extending vertically upward from the front end of the 2 nd partition plate, the 2 nd partition plate being provided with the air outflow hole communicating the 1 st space and the 2 nd space,
the jam detection device is provided with:
the opening and closing door; and
and a closed circuit monitoring unit having a closed circuit formed via the open/close door that closes the air outlet hole, and configured to detect and report that the humidifier is clogged when the closed circuit is interrupted by the open/close door opening the air outlet hole.
2. The air conditioner according to claim 1,
the closed circuit monitoring unit starts counting of time when the clogging of the humidifier is detected, and reports the clogging of the humidifier when the interruption state of the closed circuit is continued until the counted time elapses a certain time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/081405 WO2018078685A1 (en) | 2016-10-24 | 2016-10-24 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109863348A CN109863348A (en) | 2019-06-07 |
| CN109863348B true CN109863348B (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680090181.9A Active CN109863348B (en) | 2016-10-24 | 2016-10-24 | Air conditioner |
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| Country | Link |
|---|---|
| JP (1) | JP6790109B2 (en) |
| CN (1) | CN109863348B (en) |
| WO (1) | WO2018078685A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6547881B2 (en) * | 2017-08-28 | 2019-07-24 | ダイキン工業株式会社 | Air conditioner |
| JP2019211194A (en) * | 2018-06-08 | 2019-12-12 | シャープ株式会社 | Filter dirt estimation device, humidifying device and filter dirt estimation method |
| CN112577120A (en) * | 2019-09-30 | 2021-03-30 | 广东美的制冷设备有限公司 | Humidification module, control method thereof, air conditioner indoor unit and air conditioner |
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| Publication number | Publication date |
|---|---|
| JPWO2018078685A1 (en) | 2019-06-24 |
| WO2018078685A1 (en) | 2018-05-03 |
| JP6790109B2 (en) | 2020-11-25 |
| CN109863348A (en) | 2019-06-07 |
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