WO2019138534A1 - Air-conditioning device - Google Patents

Air-conditioning device Download PDF

Info

Publication number
WO2019138534A1
WO2019138534A1 PCT/JP2018/000619 JP2018000619W WO2019138534A1 WO 2019138534 A1 WO2019138534 A1 WO 2019138534A1 JP 2018000619 W JP2018000619 W JP 2018000619W WO 2019138534 A1 WO2019138534 A1 WO 2019138534A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
temperature
temperature sensor
filter
unit
Prior art date
Application number
PCT/JP2018/000619
Other languages
French (fr)
Japanese (ja)
Inventor
一也 道上
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2018/000619 priority Critical patent/WO2019138534A1/en
Priority to JP2019564237A priority patent/JP6910474B2/en
Publication of WO2019138534A1 publication Critical patent/WO2019138534A1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices

Definitions

  • the present invention relates to an air conditioner having a filter for removing foreign matter from return air from a room space from which indoor units blow out conditioned air.
  • a ceiling-embedded indoor unit is often installed in a ceiling pocket, which is a ceiling with a suction port down.
  • the ceiling-embedded indoor unit uses a ceiling chamber system as a suction system, and ventilates by taking outside air from an outside air intake port opened to the inside of the ceiling via a duct communicating from the outside.
  • An object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide an air conditioner which can easily discriminate a filter clogging mechanically and clean the filter at an appropriate timing by an operator. .
  • An air conditioner includes an indoor unit, a filter disposed outside a suction port of the indoor unit, which removes foreign matter from return air from a living room space from which the indoor unit blows off conditioned air, and the suction port.
  • An external air intake port for supplying external air, a first temperature sensor disposed inside the intake port for measuring the temperature of intake air before harmony, a second temperature sensor disposed in the living room space, and the first temperature sensor
  • a control unit having a clogging determination unit that determines that the filter is clogged if the difference between the temperature measured by the temperature sensor and the temperature measured by the second temperature sensor is equal to or greater than a threshold value; .
  • the clogging determination unit determines that the filter is clogged if the difference between the measured temperature of the first temperature sensor and the measured temperature of the second temperature sensor is equal to or greater than the threshold value.
  • a control unit is provided. Therefore, the clogging of the filter can be easily determined mechanically, and the operator can clean the filter at an appropriate timing.
  • FIG. 1 is a refrigerant circuit diagram showing an air conditioning apparatus 100 according to Embodiment 1 of the present invention.
  • An air conditioner 100 shown in FIG. 1 connects an outdoor unit 101 and an indoor unit 102 by a gas refrigerant pipe 103 and a liquid refrigerant pipe 104.
  • the outdoor unit 101 includes a compressor 105, a four-way valve 106, an outdoor heat exchanger 107, and an expansion valve 108.
  • the compressor 105 compresses and discharges the sucked refrigerant.
  • the compressor 105 may change the operating frequency arbitrarily by, for example, an inverter circuit or the like to change the capacity of the compressor 105 to send out the refrigerant per unit time.
  • the four-way valve 106 is a valve that switches the flow of the refrigerant, for example, between the cooling operation and the heating operation.
  • the outdoor heat exchanger 107 performs heat exchange between the refrigerant and the outdoor air.
  • the outdoor heat exchanger 107 functions as a condenser during the cooling operation to condense and liquefy the refrigerant.
  • the outdoor heat exchanger 107 functions as an evaporator during the heating operation to evaporate and evaporate the refrigerant.
  • the expansion valve 108 is a flow control valve and decompresses and expands the refrigerant.
  • the opening degree can be adjusted based on an instruction from a control device or the like (not shown).
  • the indoor unit 102 has an indoor heat exchanger 109.
  • the indoor heat exchanger 109 performs, for example, heat exchange between the air to be air-conditioned and the refrigerant.
  • the indoor heat exchanger 109 functions as an evaporator during the cooling operation to evaporate and vaporize the refrigerant.
  • the indoor heat exchanger 109 functions as a condenser during heating operation to condense and liquefy the refrigerant.
  • the flow of the refrigerant can be switched by the four-way valve 106 of the outdoor unit 101, and the cooling operation or the heating operation can be realized.
  • FIG. 2 is a schematic view showing an installation environment of the indoor unit 102 according to Embodiment 1 of the present invention. As shown in FIG. 2, the indoor unit 102 is disposed in a ceiling 111 which is a lowered ceiling partitioned from a living room space 110 from which the indoor unit 102 blows the conditioned air.
  • the indoor unit 102 is disposed inside the suction port 102 a and has a first temperature sensor 112 that measures the temperature of suction air before harmony.
  • the first temperature sensor 112 is disposed upstream of the indoor heat exchanger 109 and the blower fan 113 in the indoor unit 102 in the air flow direction.
  • a filter 114 capable of communicating air is disposed at the partition between the living room space 110 and the ceiling pocket 111.
  • the filter 114 is removably attached to the vent 115.
  • the filter 114 is disposed outside the suction port 102a of the indoor unit 102, and removes foreign matter from the return air from the room space 110 where the indoor unit 102 blows the conditioned air.
  • the filter 114 is an air filter that collects foreign matter and causes clogging.
  • An outside air intake port 117 is provided in the ceiling case 111 via a duct 116 which leads from the outside.
  • the outside air intake port 117 supplies outside air to the inlet 102 a of the indoor unit 102.
  • a remote control 119 connected to the indoor unit 102 via the communication line 118 is disposed in the room space 110.
  • the remote control 119 adjusts the set temperature.
  • the set temperature may be set from other than the remote controller 119.
  • the remote controller 119 is provided with a second temperature sensor 120.
  • the second temperature sensor 120 may be separate from the remote controller 119 as long as it is disposed in the room space 110 and connected to the indoor unit 102 via a communication line.
  • the indoor unit 102 is provided with a control unit 121 that performs clogging detection control of the filter 114, which is a feature of the first embodiment described later.
  • the control unit 121 includes a clogging determination unit 126.
  • the clogging determination unit 126 determines that the clogging of the filter 114 has occurred if the difference between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold ⁇ .
  • the control unit 121 is a processing circuit including a microcomputer provided with a CPU, a ROM, a RAM, an I / O port, and the like.
  • FIG. 3 is a functional block diagram showing functions necessary for clogging detection control of the filter 114 of the air-conditioning apparatus 100 according to Embodiment 1 of the present invention.
  • the air conditioning apparatus 100 can control the compressor 105, the four-way valve 106, the expansion valve 108, and the like for performing air conditioning in the cooling operation or the heating operation as other functions.
  • the air conditioning apparatus 100 includes a first temperature sensor 112 and a control unit 121 in the indoor unit 102.
  • the first temperature sensor 112 measures the intake air temperature of the indoor unit 102.
  • the air conditioning apparatus 100 includes a second temperature sensor 120, a display unit 122, and an operation unit 123 in the remote control 119.
  • the second temperature sensor 120 measures the room temperature of the living space 110.
  • the display unit 122 displays an alarm or displays an operation result.
  • the operation unit 123 is operated by the user to set the set temperature.
  • the control unit 121 of the indoor unit 102 includes the temperature difference calculation unit 124, the thermo-off operation detection unit 125, the clogging determination unit 126, the alarm issuing unit 127, the clogging operation unit 128, and the normal operation unit 129. Including.
  • the thermo-off operation detection unit 125 detects that the thermo-off operation in which the operation of the air conditioning apparatus 100 switches to the air blowing operation when the measurement temperature T1 of the first temperature sensor 112 reaches the set temperature.
  • the set temperature is set by operating the operation unit 123 provided on the remote control 119.
  • the implementation of the thermo-off operation itself may be controlled by a control device (not shown) such as the outdoor unit 101 or the like.
  • the clogging determination unit 126 determines that the difference ⁇ T between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 is a threshold ⁇ or more. It is determined that clogging of the filter 114 has occurred.
  • the alarm issuing unit 127 issues an alarm when the clogging determination unit 126 determines that clogging of the filter 114 has occurred.
  • the alarm issuing unit 127 may display an alarm of clogging of the filter 114 on the display unit 122 of the remote control 119.
  • the alarm issuing unit 127 may notify the administrator of an alarm on the clogging of the filter 114 via the communication network.
  • the clogging operation unit 128 compares the set temperature set by the remote control 119 with the measurement temperature T2 of the second temperature sensor 120 to perform air conditioning. Conduct. That is, when the clogging of the filter 114 occurs, the clogging operation unit 128 performs the air conditioning by the measurement temperature T2 of the second temperature sensor 120 provided in the remote control 119 disposed in the room space 110 to be actually air conditioned. carry out.
  • the normal operation unit 129 compares the set temperature set by the remote controller 119 with the measurement temperature T1 of the first temperature sensor 112 at the normal time to perform air conditioning. That is, when there is no clogging of the filter 114, the normal operation unit 129 performs the air conditioning by the measurement temperature T1 of the first temperature sensor 112 that measures the suction air temperature of the indoor unit 102 in order to achieve the efficiency of the air conditioning control. .
  • FIG. 4 is a flowchart showing clogging detection control of the filter 114 of the air conditioning apparatus 100 according to Embodiment 1 of the present invention.
  • the clogging detection control routine for the filter 114 is repeatedly performed at predetermined intervals.
  • the air conditioning apparatus 100 implements air conditioning in the cooling operation or the heating operation.
  • the indoor unit 102 sucks the air of the living space 110 from the air vent 115 in which the filter 114 is disposed.
  • the indoor unit 102 also sucks the outside air from the outside air intake port 117 through the duct 116.
  • the indoor unit 102 blows out the conditioned air heat-exchanged with the refrigerant by the indoor heat exchanger 109 from the outlet 130 into the room space 110.
  • the set temperature of the room space 110 is set by operating the operation unit 123 of the remote control 119.
  • the measured temperature T1 of the first temperature sensor 112 which measures the intake air temperature of the indoor unit 102 in order to improve the efficiency of air conditioning control when the normal operation unit 129 does not clog the filter 114 at normal times. To carry out air conditioning.
  • step S101 the control unit 121 receives the measured temperature T1 of the first temperature sensor 112. After the present process, the process proceeds to step S102.
  • step S102 the control unit 121 receives the measured temperature T2 of the second temperature sensor 120. After the present process, the process proceeds to step S103.
  • step S103 the temperature difference calculation unit 124 of the control unit 121 calculates the difference between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120, and the difference value ⁇ T of the absolute value Calculate
  • the process proceeds to step S104.
  • step S104 the thermo-off operation detection unit 125 of the control unit 121 has started the thermo-off operation where the operation of the air conditioning apparatus 100 switches to the air blowing operation when the measured temperature T1 of the first temperature sensor 112 reaches the set temperature. Whether or not to detect. If it is detected in step S104 that the thermo-off operation has been started, the process proceeds to step S105. When it is not detected in step S104 that the thermo-off operation has been started, the process proceeds to step S110.
  • ⁇ T becomes smaller as the air conditioning operation time passes, and becomes minimum when the measured temperature T1 reaches the set temperature.
  • the operation to switch to the air blowing operation when the measured temperature T1 reaches the set temperature is a thermo-off operation.
  • step S105 the clogging determination unit 126 of the control unit 121 sets the difference value ⁇ T between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 to the threshold value ⁇ immediately after the start of the thermo-off operation. It is determined whether or not it is above. If ⁇ T ⁇ threshold ⁇ in step S105, the process proceeds to step S106. If ⁇ T ⁇ threshold ⁇ in step S105, the process proceeds to step S110.
  • thermo-off operation if ⁇ T ⁇ threshold ⁇ , there is no difference between the measured temperature T1 and the measured temperature T2, in other words, the room temperature of the room 110 and the suction air temperature of the indoor unit 102 of the ceiling 111. It is determined that there is no deviation and that the filter 114 is not clogged.
  • the filter 114 attached to the vent 115 is clogged, in the indoor unit 102, the amount of outside air intake from the outside air intake port 117 increases due to the pressure loss difference. In addition, in the indoor unit 102, the intake amount of return air from the air vent 115 in the living space 110 is reduced. Therefore, the temperature in the ceiling pocket 111 approaches the outside air temperature, and ⁇ T gradually increases regardless of the air conditioning operation of cooling and heating. In other words, the temperature of the ceiling pocket 111 approaches the outside temperature more than the room temperature of the room space 110. Therefore, it is possible to determine that the filter 114 is clogged by the determination of ⁇ T ⁇ ⁇ the threshold ⁇ .
  • step S106 the clogging determination unit 126 of the control unit 121 determines that the filter 114 is clogged. After the present process, the process proceeds to step S107.
  • step S107 the alarm issuing unit 127 of the control unit 121 issues an alarm when the clogging determination unit 126 determines that clogging of the filter 114 has occurred.
  • the alarm issuing unit 127 may display an alarm of clogging of the filter 114 on the display unit 122 of the remote control 119.
  • the alarm issuing unit 127 may notify the administrator of an alarm on the clogging of the filter 114 via the communication network.
  • the alarm issuing unit 127 displays, for example, a filter cleaning sign on the remote control 119.
  • step S108 when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, the clogging operation unit 128 of the control unit 121 sets the temperature set by the remote control 119 to the second temperature sensor 120. Air conditioning is performed in comparison with the measurement temperature T2 of. That is, when the clogging of the filter 114 occurs, the clogging operation unit 128 performs the air conditioning by the measurement temperature T2 of the second temperature sensor 120 provided in the remote control 119 disposed in the room space 110 to be actually air conditioned carry out. This prevents the room temperature of the room space 110 from deviating significantly from the set temperature. Then, overcooling or overheating is suppressed. After the present process, the process proceeds to step S109.
  • the control unit 121 may detect the start of the thermo-on operation and may determine that the filter 114 is clogged even when ⁇ T ⁇ the threshold value ⁇ .
  • step S109 the control unit 121 performs air conditioning in the thermo-off operation and the thermo-on operation, and determines whether or not the clogging of the filter 114 has been eliminated. Specifically, while performing air conditioning, it is determined whether or not ⁇ T ⁇ threshold ⁇ . When clogging of the filter 114 is eliminated in step S109, the process proceeds to step S110. If clogging of the filter 114 is not eliminated in step S109, the process returns to step S107.
  • step S110 the normal operation unit 129 of the control unit 121 performs air conditioning by comparing the set temperature set by the remote control 119 with the measurement temperature T1 of the first temperature sensor 112 at normal times. That is, when there is no clogging of the filter 114, the normal operation unit 129 performs the air conditioning by the measurement temperature T1 of the first temperature sensor 112 that measures the suction air temperature of the indoor unit 102 in order to achieve the efficiency of the air conditioning control. .
  • the first temperature sensor 112 of the indoor unit 102 and the second temperature sensor 120 built in the remote control 119 are divided into the ceiling pocket 111 and the room space 110 through the vent 115 to which the filter 114 is attached. Will be installed. Therefore, when the filter 114 is clogged, the amount of outside air introduced from the duct 116 into the outside air intake port 117 is increased, and a temperature difference is generated between the ceiling pocket 111 and the room space 110. In view of this phenomenon, clogging of the filter 114 can be detected.
  • the clogging state of the filter 114 independent of the indoor unit 102 can be detected, the operator can clean at an appropriate timing, and the filter 114 can be maintained clean. In addition, it is possible to prevent a decrease in air conditioning capacity due to clogging of the filter 114.
  • the air conditioning apparatus 100 includes the indoor unit 102.
  • the air conditioning apparatus 100 is disposed outside the suction port 102a of the indoor unit 102, and includes a filter 114 that removes foreign matter from the return air from the room space 110 from which the indoor unit 102 blows the conditioned air.
  • the air conditioning apparatus 100 includes an outside air intake port 117 that supplies the outside air to the intake port 102a.
  • the air conditioning apparatus 100 includes a first temperature sensor 112 which is disposed inside the suction port 102a and measures the temperature of suction air before harmony.
  • the air conditioner 100 includes a remote control 119 that adjusts the set temperature.
  • the air conditioning apparatus 100 includes a second temperature sensor 120 disposed in the living room space 110.
  • the air conditioner 100 determines that the filter 114 is clogged if the difference ⁇ T between the measured temperature T1 of the first temperature sensor 112 and the measured temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold ⁇ .
  • a control unit 121 having a determination unit 126 is provided.
  • the clogging is determined that the filter 114 is clogged if the difference ⁇ T between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold ⁇ .
  • a control unit 121 having a determination unit 126 is provided.
  • the indoor unit 102 is disposed in the ceiling 111 separated from the room space 110.
  • the filter 114 is disposed such that air can freely pass through the partition between the living room space 110 and the ceiling panel 111.
  • the outside air intake port 117 is provided in the ceiling pocket 111 via a duct 116 communicating from the outside.
  • the clogging determination unit 126 is divided from the measured temperature T1 of the first temperature sensor 112 disposed inside the suction port 102a of the indoor unit 102 disposed in the ceiling pocket 111 and the ceiling pocket 111 It can be determined that clogging of the filter 114 has occurred if the difference ⁇ T between the measured temperature T2 of the second temperature sensor 120 disposed in the living room space 110 and the threshold value ⁇ . Therefore, clogging of the filter 114 can be easily determined mechanically, and the operator can clean the filter 114 at an appropriate timing.
  • the air conditioning apparatus 100 includes the remote control 119 that adjusts the set temperature.
  • the second temperature sensor 120 is provided to the remote control 119.
  • the second temperature sensor 120 is integrated with the remote controller 119, and if the remote controller 119 is disposed in the living room space 110, it is not necessary to individually arrange the second temperature sensor 120. Thereby, the installation work of the air conditioning apparatus 100 becomes easy.
  • control unit 121 has the normal operation unit 129 that performs air conditioning by comparing the set temperature set by the remote control 119 or the like at the normal time with the measurement temperature T1 of the first temperature sensor 112.
  • the normal operation unit 129 can perform air conditioning by comparing the set temperature set by the remote control 119 or the like at the normal time with the measurement temperature T1 of the first temperature sensor 112. Thereby, the air conditioning apparatus 100 can efficiently perform comfortable air conditioning at normal times.
  • the control unit 121 includes the thermo-off operation detection unit 125 that detects the thermo-off operation that switches to the air-blowing operation when the measured temperature T1 of the first temperature sensor 112 reaches the set temperature.
  • the clogging determination unit 126 determines that clogging of the filter 114 has occurred if the difference ⁇ T is equal to or greater than the threshold value ⁇ immediately after the thermo-off operation detection unit 125 detects the start of the thermo-off operation.
  • the measurement temperature T1 of the first temperature sensor 112 disposed inside the suction port 102a of the indoor unit 102 disposed in the ceiling pocket 111 is the room temperature 110 of the air conditioning target.
  • the set temperature is reached.
  • the measured temperature T1 of the first temperature sensor 112 should normally match the temperature of the room 110 to be air-conditioned.
  • the clogging determination unit 126 can determine that clogging of the filter 114 has occurred in this case.
  • control unit 121 has the alarm issuing unit 127 that issues an alarm when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred.
  • the control unit 121 measures the set temperature set by the remote control 119 or the like by the second temperature sensor 120. It has a clogging operation unit 128 that performs air conditioning as compared to the temperature T2.
  • the air conditioning apparatus 100 may perform overcooling or overheating air conditioning. Therefore, when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, the measured temperature T2 of the second temperature sensor 120 provided in the remote control 119 disposed in the room space 110 to be actually air conditioned As a result, the air conditioning is continued, and even though the efficient control of the air conditioning is sacrificed, the deviation of the room temperature measurement can be prevented, and the comfort of the living space 110 can be maintained preferentially.
  • Reference Signs List 100 air conditioner, 101 outdoor unit, 102 indoor unit, 102 a suction port, 103 gas refrigerant piping, 104 liquid refrigerant piping, 105 compressor, 106 four-way valve, 107 outdoor heat exchanger, 108 expansion valve, 109 indoor heat exchanger , 110 room space, 111 ceiling space, 112 first temperature sensor, 113 air blower fan, 114 filter, 115 air vent, 116 duct, 117 outside air intake, 118 communication line, 119 remote controller, 120 second temperature sensor, 121 controller , 122 display unit, 123 operation unit, 124 temperature difference calculation unit, 125 thermo-off operation detection unit, 126 clogging determination unit, 127 alarm issuing unit, 128 clogging operation unit, 129 normal operation unit, 130 outlet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

An air-conditioning device comprises: an indoor unit; a filter that is arranged on the outside of a suction opening of the indoor unit, and that removes foreign matter from return air from a living space into which the indoor unit blows conditioned air; an outside air intake opening for supplying outside air to the suction opening; a first temperature sensor that is arranged on the inside of the suction opening, and that measures the temperature of the suction air prior to being air-conditioned; a second temperature sensor arranged in the living space; and a control unit having a clogging determination unit for determining that the filter has become clogged when a difference between the temperature measured by the first temperature sensor and the temperature measured by the second temperature sensor is equal to or greater than a threshold value.

Description

空気調和装置Air conditioner
　本発明は、室内機が調和空気を吹き出す居室空間からの還気から異物を取り除くフィルタを備えた空気調和装置に関する。 The present invention relates to an air conditioner having a filter for removing foreign matter from return air from a room space from which indoor units blow out conditioned air.
　従来、空気調和装置が設置された空間に配置されたフィルタにおける汚れなどの目詰まりの検知方法は、目視によるもの、あるいは、空気調和装置の室内機の吸込み温度センサの測定温度及びモーター回転数から算出するものが知られている（たとえば、特許文献１参照）。 Conventionally, a method for detecting clogging or the like in a filter disposed in a space in which an air conditioning apparatus is installed is visual inspection or from the measurement temperature of the suction temperature sensor of the indoor unit of the air conditioning apparatus and the motor rotational speed What is calculated is known (for example, refer to patent documents 1).
特許第３９７２７２３号公報Patent No. 3972723
　ビジネスホテルなどに用いられる空気調和装置では、天井埋込型の室内機を適用することが一般的である。天井埋込型の室内機は、吸込み口を下がり天井内である天井懐内に設置されることが多い。天井埋込型の室内機は、吸込み方式に天井チャンバー式を用い、外部から通じるダクトを介して天井懐内部に開口した外気取込み口から外気を取り込んで換気する。 It is general to apply a ceiling-embedded indoor unit to an air conditioner used in a business hotel or the like. A ceiling-embedded indoor unit is often installed in a ceiling pocket, which is a ceiling with a suction port down. The ceiling-embedded indoor unit uses a ceiling chamber system as a suction system, and ventilates by taking outside air from an outside air intake port opened to the inside of the ceiling via a duct communicating from the outside.
　従来の空気調和装置の場合には、フィルタの目詰まりを目視によって判断することが多い。ここで、ビジネスホテルなどに設置された空気調和装置では、フィルタが目詰まりすると、外気取込み口あるいは天井懐に通じる隙間から流入する外気が増える。それにより、天井埋込型の室内機に内蔵された吸込み温度センサは、空調空間である居室空間の温度を正確に測定できない。または、吸込み温度センサは、居室空間の温度に対する測定温度の追従性が著しく悪化する。このため、空気調和装置では、居室空間の室内温度の制御が不安定になる。これに対し、フィルタが目詰まりしないように、作業者がこまめに掃除したり、作業者による目視点検の頻度を多くしたりする必要があった。 In the case of a conventional air conditioner, filter clogging is often determined by visual observation. Here, in the air conditioner installed in a business hotel or the like, when the filter is clogged, the amount of outside air flowing in from the gap leading to the outside air intake port or the ceiling pocket increases. As a result, the suction temperature sensor built in the ceiling-embedded indoor unit can not accurately measure the temperature of the room space which is the air-conditioned space. Alternatively, the suction temperature sensor significantly deteriorates the followability of the measured temperature to the temperature of the living room space. For this reason, in the air conditioner, control of the room temperature in the living room space becomes unstable. On the other hand, in order to prevent the filter from being clogged, it is necessary for the operator to perform frequent cleaning and to increase the frequency of visual inspection by the operator.
　本発明は、上記課題を解決するためのものであり、フィルタの目詰まりを機械的に容易に判別し、作業者が適切なタイミングでフィルタを掃除できる空気調和装置を提供することを目的とする。 An object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide an air conditioner which can easily discriminate a filter clogging mechanically and clean the filter at an appropriate timing by an operator. .
　本発明に係る空気調和装置は、室内機と、前記室内機の吸込み口の外側に配置され、前記室内機が調和空気を吹き出す居室空間からの還気から異物を取り除くフィルタと、前記吸込み口に外気を供給する外気取込み口と、前記吸込み口の内側に配置され、調和前の吸込み空気の温度を測定する第１温度センサと、前記居室空間に配置された第２温度センサと、前記第１温度センサの測定温度と前記第２温度センサの測定温度との差分が閾値以上であると前記フィルタの目詰まりが発生したと判定する目詰まり判別部を有した制御部と、を備えるものである。 An air conditioner according to the present invention includes an indoor unit, a filter disposed outside a suction port of the indoor unit, which removes foreign matter from return air from a living room space from which the indoor unit blows off conditioned air, and the suction port. An external air intake port for supplying external air, a first temperature sensor disposed inside the intake port for measuring the temperature of intake air before harmony, a second temperature sensor disposed in the living room space, and the first temperature sensor A control unit having a clogging determination unit that determines that the filter is clogged if the difference between the temperature measured by the temperature sensor and the temperature measured by the second temperature sensor is equal to or greater than a threshold value; .
　本発明に係る空気調和装置によれば、第１温度センサの測定温度と第２温度センサの測定温度との差分が閾値以上であるとフィルタの目詰まりが発生したと判定する目詰まり判別部を有した制御部を備える。したがって、フィルタの目詰まりを機械的に容易に判別し、作業者が適切なタイミングでフィルタを掃除できる。 According to the air conditioner pertaining to the present invention, the clogging determination unit determines that the filter is clogged if the difference between the measured temperature of the first temperature sensor and the measured temperature of the second temperature sensor is equal to or greater than the threshold value. A control unit is provided. Therefore, the clogging of the filter can be easily determined mechanically, and the operator can clean the filter at an appropriate timing.
本発明の実施の形態１に係る空気調和装置を示す冷媒回路図である。It is a refrigerant circuit figure showing the air harmony device concerning Embodiment 1 of the present invention. 本発明の実施の形態１に係る室内機の設置環境を示す概略図である。It is the schematic which shows the installation environment of the indoor unit which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和装置のフィルタの目詰まり検知制御に必要な機能を示す機能ブロック図である。It is a functional block diagram which shows a function required for clogging detection control of the filter of the air conditioning apparatus which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和装置のフィルタの目詰まり検知制御を示すフローチャートである。It is a flowchart which shows clogging detection control of the filter of the air conditioning apparatus which concerns on Embodiment 1 of this invention.
　以下、図面に基づいて本発明の実施の形態について説明する。なお、各図において、同一の符号を付したものは、同一の又はこれに相当するものであり、これは明細書の全文において共通している。また、断面図の図面においては、視認性に鑑みて適宜ハッチングを省略している。さらに、明細書全文に示す構成要素の形態は、あくまで例示であってこれらの記載に限定されるものではない。 Hereinafter, embodiments of the present invention will be described based on the drawings. In the drawings, the same reference numerals denote the same or corresponding parts, which are common to the whole text of the specification. Further, in the drawing of the cross-sectional view, hatching is appropriately omitted in view of visibility. Furthermore, the form of the component shown in the specification full text is an illustration to the last, and is not limited to these descriptions.
実施の形態１．
＜空気調和装置１００の構成＞
　図１は、本発明の実施の形態１に係る空気調和装置１００を示す冷媒回路図である。図１に示す空気調和装置１００は、室外機１０１と室内機１０２とをガス冷媒配管１０３及び液冷媒配管１０４によって接続されている。 Embodiment 1
<Configuration of Air Conditioner 100>
FIG. 1 is a refrigerant circuit diagram showing an air conditioning apparatus 100 according to Embodiment 1 of the present invention. An air conditioner 100 shown in FIG. 1 connects an outdoor unit 101 and an indoor unit 102 by a gas refrigerant pipe 103 and a liquid refrigerant pipe 104.
　室外機１０１は、圧縮機１０５、四方弁１０６、室外熱交換器１０７及び膨張弁１０８を有する。 The outdoor unit 101 includes a compressor 105, a four-way valve 106, an outdoor heat exchanger 107, and an expansion valve 108.
　圧縮機１０５は、吸入した冷媒を圧縮して吐出する。圧縮機１０５は、たとえばインバータ回路などにより、運転周波数を任意に変化させ、圧縮機１０５の単位時間あたりの冷媒を送り出す容量を変化させてもよい。 The compressor 105 compresses and discharges the sucked refrigerant. The compressor 105 may change the operating frequency arbitrarily by, for example, an inverter circuit or the like to change the capacity of the compressor 105 to send out the refrigerant per unit time.
　四方弁１０６は、たとえば冷房運転時と暖房運転時とによって冷媒の流れを切り換える弁である。 The four-way valve 106 is a valve that switches the flow of the refrigerant, for example, between the cooling operation and the heating operation.
　室外熱交換器１０７は、冷媒と室外の空気との熱交換を行う。室外熱交換器１０７は、冷房運転時に凝縮器として機能し、冷媒を凝縮して液化させる。室外熱交換器１０７は、暖房運転時に蒸発器として機能し、冷媒を蒸発させ、気化させる。 The outdoor heat exchanger 107 performs heat exchange between the refrigerant and the outdoor air. The outdoor heat exchanger 107 functions as a condenser during the cooling operation to condense and liquefy the refrigerant. The outdoor heat exchanger 107 functions as an evaporator during the heating operation to evaporate and evaporate the refrigerant.
　膨張弁１０８は、流量制御弁であり、冷媒を減圧して膨張させる。膨張弁１０８は、たとえば電子式膨張弁などで構成された場合には、図示しない制御装置などの指示に基づいて開度調整を行える。 The expansion valve 108 is a flow control valve and decompresses and expands the refrigerant. For example, when the expansion valve 108 is configured by an electronic expansion valve or the like, the opening degree can be adjusted based on an instruction from a control device or the like (not shown).
　室内機１０２は、室内熱交換器１０９を有する。室内熱交換器１０９は、たとえば空調対象の空気と冷媒との熱交換を行う。室内熱交換器１０９は、冷房運転時に蒸発器として機能し、冷媒を蒸発させ、気化させる。室内熱交換器１０９は、暖房運転時に凝縮器として機能し、冷媒を凝縮して液化させる。 The indoor unit 102 has an indoor heat exchanger 109. The indoor heat exchanger 109 performs, for example, heat exchange between the air to be air-conditioned and the refrigerant. The indoor heat exchanger 109 functions as an evaporator during the cooling operation to evaporate and vaporize the refrigerant. The indoor heat exchanger 109 functions as a condenser during heating operation to condense and liquefy the refrigerant.
　以上のように空気調和装置１００を構成することにより、室外機１０１の四方弁１０６によって冷媒の流れを切り換え、冷房運転又は暖房運転が実現できる。 By configuring the air conditioner 100 as described above, the flow of the refrigerant can be switched by the four-way valve 106 of the outdoor unit 101, and the cooling operation or the heating operation can be realized.
＜室内機１０２の設置環境＞
　図２は、本発明の実施の形態１に係る室内機１０２の設置環境を示す概略図である。図２に示すように、室内機１０２は、室内機１０２が調和空気を吹き出す居室空間１１０と仕切られた下がり天井内である天井懐１１１に配置されている。 <Installation environment of indoor unit 102>
FIG. 2 is a schematic view showing an installation environment of the indoor unit 102 according to Embodiment 1 of the present invention. As shown in FIG. 2, the indoor unit 102 is disposed in a ceiling 111 which is a lowered ceiling partitioned from a living room space 110 from which the indoor unit 102 blows the conditioned air.
　室内機１０２は、吸込み口１０２ａの内側に配置され、調和前の吸込み空気の温度を測定する第１温度センサ１１２を有する。第１温度センサ１１２は、室内機１０２内の室内熱交換器１０９及び送風ファン１１３よりも空気流れ方向上流側に配置されている。 The indoor unit 102 is disposed inside the suction port 102 a and has a first temperature sensor 112 that measures the temperature of suction air before harmony. The first temperature sensor 112 is disposed upstream of the indoor heat exchanger 109 and the blower fan 113 in the indoor unit 102 in the air flow direction.
　居室空間１１０と天井懐１１１との仕切り部分には、空気を疎通自在なフィルタ１１４が配置されている。フィルタ１１４は、通気口１１５に取り外し自在に取り付けられている。フィルタ１１４は、室内機１０２の吸込み口１０２ａの外側に配置され、室内機１０２が調和空気を吹き出す居室空間１１０からの還気から異物を取り除く。フィルタ１１４は、異物を収集して目詰まりを引き起こすエアフィルタである。 A filter 114 capable of communicating air is disposed at the partition between the living room space 110 and the ceiling pocket 111. The filter 114 is removably attached to the vent 115. The filter 114 is disposed outside the suction port 102a of the indoor unit 102, and removes foreign matter from the return air from the room space 110 where the indoor unit 102 blows the conditioned air. The filter 114 is an air filter that collects foreign matter and causes clogging.
　外部から通じるダクト１１６を介して天井懐１１１には、外気取込み口１１７が設けられている。外気取込み口１１７は、室内機１０２の吸込み口１０２ａに外気を供給する。 An outside air intake port 117 is provided in the ceiling case 111 via a duct 116 which leads from the outside. The outside air intake port 117 supplies outside air to the inlet 102 a of the indoor unit 102.
　居室空間１１０には、室内機１０２と通信線１１８を介して接続されたリモコン１１９が配置されている。リモコン１１９は、設定温度を調節する。なお、設定温度は、リモコン１１９以外から設定されてもよい。リモコン１１９には、第２温度センサ１２０が設けられている。なお、第２温度センサ１２０は、居室空間１１０に配置されるとともに室内機１０２と通信線を介して接続されれば、リモコン１１９と別体でもよい。 A remote control 119 connected to the indoor unit 102 via the communication line 118 is disposed in the room space 110. The remote control 119 adjusts the set temperature. The set temperature may be set from other than the remote controller 119. The remote controller 119 is provided with a second temperature sensor 120. The second temperature sensor 120 may be separate from the remote controller 119 as long as it is disposed in the room space 110 and connected to the indoor unit 102 via a communication line.
　室内機１０２には、後述する実施の形態１の特徴であるフィルタ１１４の目詰まり検知制御を行う制御部１２１が設けられている。詳細は後述するが、制御部１２１は、目詰まり判別部１２６を有する。目詰まり判別部１２６は、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分が閾値α以上であるとフィルタ１１４の目詰まりが発生したと判定する。制御部１２１は、ＣＰＵ、ＲＯＭ、ＲＡＭ及びＩ／Ｏポートなどを備えたマイコンを有した処理回路である。 The indoor unit 102 is provided with a control unit 121 that performs clogging detection control of the filter 114, which is a feature of the first embodiment described later. Although the details will be described later, the control unit 121 includes a clogging determination unit 126. The clogging determination unit 126 determines that the clogging of the filter 114 has occurred if the difference between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold α. The control unit 121 is a processing circuit including a microcomputer provided with a CPU, a ROM, a RAM, an I / O port, and the like.
＜制御部１２１の機能構成＞
　図３は、本発明の実施の形態１に係る空気調和装置１００のフィルタ１１４の目詰まり検知制御に必要な機能を示す機能ブロック図である。なお、ここでは、空気調和装置１００の機能のうち、後述する実施の形態１の特徴であるフィルタ１１４の目詰まり検知制御を行うために必要な機能だけを説明する。空気調和装置１００は、その他の機能として、冷房運転又は暖房運転の空調を実施するための圧縮機１０５、四方弁１０６及び膨張弁１０８などを制御できる。 <Functional Configuration of Control Unit 121>
FIG. 3 is a functional block diagram showing functions necessary for clogging detection control of the filter 114 of the air-conditioning apparatus 100 according to Embodiment 1 of the present invention. Here, among the functions of the air conditioning apparatus 100, only the functions necessary to perform the clogging detection control of the filter 114, which is a feature of the first embodiment described later, will be described. The air conditioning apparatus 100 can control the compressor 105, the four-way valve 106, the expansion valve 108, and the like for performing air conditioning in the cooling operation or the heating operation as other functions.
　空気調和装置１００は、室内機１０２に、第１温度センサ１１２と、制御部１２１と、を有する。第１温度センサ１１２は、室内機１０２の吸込み空気温度を測定する。 The air conditioning apparatus 100 includes a first temperature sensor 112 and a control unit 121 in the indoor unit 102. The first temperature sensor 112 measures the intake air temperature of the indoor unit 102.
　空気調和装置１００は、リモコン１１９に、第２温度センサ１２０と、表示部１２２と、操作部１２３と、を有する。第２温度センサ１２０は、居室空間１１０の室温を測定する。表示部１２２は、警報を表示したり、操作結果を表示したりする。操作部１２３は、使用者が設定温度を設定するために操作される。 The air conditioning apparatus 100 includes a second temperature sensor 120, a display unit 122, and an operation unit 123 in the remote control 119. The second temperature sensor 120 measures the room temperature of the living space 110. The display unit 122 displays an alarm or displays an operation result. The operation unit 123 is operated by the user to set the set temperature.
　室内機１０２の制御部１２１は、温度差分演算部１２４と、サーモオフ運転検知部１２５と、目詰まり判別部１２６と、警報発令部１２７と、目詰まり運転部１２８と、通常運転部１２９と、を含む。 The control unit 121 of the indoor unit 102 includes the temperature difference calculation unit 124, the thermo-off operation detection unit 125, the clogging determination unit 126, the alarm issuing unit 127, the clogging operation unit 128, and the normal operation unit 129. Including.
　温度差分演算部１２４は、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分を演算して絶対値の差分値である△Ｔ＝｜Ｔ１－Ｔ２｜を算出する。 The temperature difference calculation unit 124 calculates the difference between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 to calculate ΔT = | T1-T2 | Do.
　サーモオフ運転検知部１２５は、空気調和装置１００の運転が第１温度センサ１１２の測定温度Ｔ１が設定温度に達した際に送風運転に切り替わるサーモオフ運転が実施されることを検知する。設定温度は、リモコン１１９に設けられた操作部１２３を操作して設定される。サーモオフ運転自体は、室外機１０１などの図示しない制御装置などで実施が制御されてよい。 The thermo-off operation detection unit 125 detects that the thermo-off operation in which the operation of the air conditioning apparatus 100 switches to the air blowing operation when the measurement temperature T1 of the first temperature sensor 112 reaches the set temperature. The set temperature is set by operating the operation unit 123 provided on the remote control 119. The implementation of the thermo-off operation itself may be controlled by a control device (not shown) such as the outdoor unit 101 or the like.
　目詰まり判別部１２６は、サーモオフ運転検知部１２５がサーモオフ運転開始を検知した直後に、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分△Ｔが閾値α以上であるとフィルタ１１４の目詰まりが発生したと判定する。 Immediately after the thermo-off operation detection unit 125 detects the start of the thermo-off operation, the clogging determination unit 126 determines that the difference ΔT between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 is a threshold α or more. It is determined that clogging of the filter 114 has occurred.
　警報発令部１２７は、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに、警報を発令させる。警報発令部１２７は、リモコン１１９の表示部１２２にフィルタ１１４の目詰まりの警報を表示してもよい。また、警報発令部１２７は、通信網を介して管理者にフィルタ１１４の目詰まりの警報を通報してもよい。 The alarm issuing unit 127 issues an alarm when the clogging determination unit 126 determines that clogging of the filter 114 has occurred. The alarm issuing unit 127 may display an alarm of clogging of the filter 114 on the display unit 122 of the remote control 119. In addition, the alarm issuing unit 127 may notify the administrator of an alarm on the clogging of the filter 114 via the communication network.
　目詰まり運転部１２８は、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに、リモコン１１９によって設定された設定温度を第２温度センサ１２０の測定温度Ｔ２と比較して空調を実施する。つまり、目詰まり運転部１２８は、フィルタ１１４の目詰まりが発生したときに、実際の空調対象の居室空間１１０に配置されたリモコン１１９に設けられた第２温度センサ１２０の測定温度Ｔ２によって空調を実施する。 When the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, the clogging operation unit 128 compares the set temperature set by the remote control 119 with the measurement temperature T2 of the second temperature sensor 120 to perform air conditioning. Conduct. That is, when the clogging of the filter 114 occurs, the clogging operation unit 128 performs the air conditioning by the measurement temperature T2 of the second temperature sensor 120 provided in the remote control 119 disposed in the room space 110 to be actually air conditioned. carry out.
　通常運転部１２９は、通常時にリモコン１１９によって設定された設定温度を第１温度センサ１１２の測定温度Ｔ１と比較して空調を実施する。つまり、通常運転部１２９は、フィルタ１１４の目詰まりが無いときに、空調制御の効率を図るため、室内機１０２の吸込み空気温度を測定する第１温度センサ１１２の測定温度Ｔ１によって空調を実施する。 The normal operation unit 129 compares the set temperature set by the remote controller 119 with the measurement temperature T1 of the first temperature sensor 112 at the normal time to perform air conditioning. That is, when there is no clogging of the filter 114, the normal operation unit 129 performs the air conditioning by the measurement temperature T1 of the first temperature sensor 112 that measures the suction air temperature of the indoor unit 102 in order to achieve the efficiency of the air conditioning control. .
＜フィルタ１１４の目詰まり検知制御＞
　図４は、本発明の実施の形態１に係る空気調和装置１００のフィルタ１１４の目詰まり検知制御を示すフローチャートである。フィルタ１１４の目詰まり検知制御ルーチンは、所定周期ごとに繰り返し実施されている。 <Clogging detection control of filter 114>
FIG. 4 is a flowchart showing clogging detection control of the filter 114 of the air conditioning apparatus 100 according to Embodiment 1 of the present invention. The clogging detection control routine for the filter 114 is repeatedly performed at predetermined intervals.
　図４に示す制御が実施される前提として、空気調和装置１００は、冷房運転又は暖房運転の空調を実施する。このとき、室内機１０２は、フィルタ１１４の配置された通気口１１５から居室空間１１０の空気を吸い込む。また、室内機１０２は、ダクト１１６を通して外気取込み口１１７から外気を吸い込む。そして、室内機１０２は、室内熱交換器１０９によって冷媒と熱交換した調和空気を吹出し口１３０から居室空間１１０に吹き出す。 As a premise that the control shown in FIG. 4 is implemented, the air conditioning apparatus 100 implements air conditioning in the cooling operation or the heating operation. At this time, the indoor unit 102 sucks the air of the living space 110 from the air vent 115 in which the filter 114 is disposed. The indoor unit 102 also sucks the outside air from the outside air intake port 117 through the duct 116. Then, the indoor unit 102 blows out the conditioned air heat-exchanged with the refrigerant by the indoor heat exchanger 109 from the outlet 130 into the room space 110.
　居室空間１１０の設定温度は、リモコン１１９の操作部１２３を操作して設定される。制御部１２１では、通常時に、通常運転部１２９がフィルタ１１４の目詰まりが無いときに、空調制御の効率を図るため、室内機１０２の吸込み空気温度を測定する第１温度センサ１１２の測定温度Ｔ１によって空調を実施する。 The set temperature of the room space 110 is set by operating the operation unit 123 of the remote control 119. In the control unit 121, the measured temperature T1 of the first temperature sensor 112 which measures the intake air temperature of the indoor unit 102 in order to improve the efficiency of air conditioning control when the normal operation unit 129 does not clog the filter 114 at normal times. To carry out air conditioning.
　ステップＳ１０１にて、制御部１２１は、第１温度センサ１１２の測定温度Ｔ１を受信する。本処理の後、ステップＳ１０２に移行する。 In step S101, the control unit 121 receives the measured temperature T1 of the first temperature sensor 112. After the present process, the process proceeds to step S102.
　ステップＳ１０２にて、制御部１２１は、第２温度センサ１２０の測定温度Ｔ２を受信する。本処理の後、ステップＳ１０３に移行する。 In step S102, the control unit 121 receives the measured temperature T2 of the second temperature sensor 120. After the present process, the process proceeds to step S103.
　ステップＳ１０３にて、制御部１２１の温度差分演算部１２４は、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分を演算して絶対値の差分値△Ｔ＝｜Ｔ１－Ｔ２｜を算出する。本処理の後、ステップＳ１０４に移行する。 In step S103, the temperature difference calculation unit 124 of the control unit 121 calculates the difference between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120, and the difference value ΔT of the absolute value Calculate | T1-T2 |. After the present process, the process proceeds to step S104.
　ステップＳ１０４にて、制御部１２１のサーモオフ運転検知部１２５は、空気調和装置１００の運転が第１温度センサ１１２の測定温度Ｔ１が設定温度に達した際に送風運転に切り替わるサーモオフ運転が開始されたか否かを検知する。ステップＳ１０４にて、サーモオフ運転が開始されたことが検知された場合には、ステップＳ１０５に移行する。ステップＳ１０４にて、サーモオフ運転が開始されたことが検知されない場合には、ステップＳ１１０に移行する。 In step S104, the thermo-off operation detection unit 125 of the control unit 121 has started the thermo-off operation where the operation of the air conditioning apparatus 100 switches to the air blowing operation when the measured temperature T1 of the first temperature sensor 112 reaches the set temperature. Whether or not to detect. If it is detected in step S104 that the thermo-off operation has been started, the process proceeds to step S105. When it is not detected in step S104 that the thermo-off operation has been started, the process proceeds to step S110.
　ここで、天井懐１１１と居室空間１１０とが通気口１１５を介して繋がっている。このため、△Ｔは、空調運転時間が経過していくと小さくなり、測定温度Ｔ１が設定温度に達したときに最小となる。この測定温度Ｔ１が設定温度に達した際に送風運転に切り替わる運転がサーモオフ運転である。 Here, the ceiling pocket 111 and the room space 110 are connected via the vent 115. Therefore, ΔT becomes smaller as the air conditioning operation time passes, and becomes minimum when the measured temperature T1 reaches the set temperature. The operation to switch to the air blowing operation when the measured temperature T1 reaches the set temperature is a thermo-off operation.
　ステップＳ１０５にて、制御部１２１の目詰まり判別部１２６は、サーモオフ運転開始直後に、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分値△Ｔが閾値α以上であるか否かを判別する。ステップＳ１０５にて、△Ｔ≧閾値αである場合には、ステップＳ１０６に移行する。ステップＳ１０５にて、△Ｔ＜閾値αである場合には、ステップＳ１１０に移行する。 In step S105, the clogging determination unit 126 of the control unit 121 sets the difference value ΔT between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 to the threshold value α immediately after the start of the thermo-off operation. It is determined whether or not it is above. If ΔT ≧ threshold α in step S105, the process proceeds to step S106. If ΔT <threshold α in step S105, the process proceeds to step S110.
　サーモオフ運転開始直後に、△Ｔ＜閾値αであれば、測定温度Ｔ１と測定温度Ｔ２とに乖離が無く、言い換えれば居室空間１１０の室内温度と天井懐１１１の室内機１０２の吸込み空気温度とに乖離が無く、フィルタ１１４の目詰まりが無いと判定している。 Immediately after the start of the thermo-off operation, if ΔT <threshold α, there is no difference between the measured temperature T1 and the measured temperature T2, in other words, the room temperature of the room 110 and the suction air temperature of the indoor unit 102 of the ceiling 111. It is determined that there is no deviation and that the filter 114 is not clogged.
　一方、通気口１１５に取り付けられたフィルタ１１４が目詰まりしている場合には、室内機１０２では、圧力損失差から外気取込み口１１７からの外気取入れ量が増加する。加えて、室内機１０２では、通気口１１５からの居室空間１１０の還気空気の取入れ量が減少する。そのため、天井懐１１１内の温度が外気温度に近くなり、冷暖の空調運転によらず、△Ｔが徐々に増加する。言い換えれば、天井懐１１１の温度が居室空間１１０の室温よりも外気温に近づく。このため、△Ｔ≧閾値αの判定によって、フィルタ１１４が目詰まりしていることが判別できる。 On the other hand, when the filter 114 attached to the vent 115 is clogged, in the indoor unit 102, the amount of outside air intake from the outside air intake port 117 increases due to the pressure loss difference. In addition, in the indoor unit 102, the intake amount of return air from the air vent 115 in the living space 110 is reduced. Therefore, the temperature in the ceiling pocket 111 approaches the outside air temperature, and ΔT gradually increases regardless of the air conditioning operation of cooling and heating. In other words, the temperature of the ceiling pocket 111 approaches the outside temperature more than the room temperature of the room space 110. Therefore, it is possible to determine that the filter 114 is clogged by the determination of ΔT 閾 値 the threshold α.
　ステップＳ１０６にて、制御部１２１の目詰まり判別部１２６は、フィルタ１１４が目詰まりしていると判定する。本処理の後、ステップＳ１０７に移行する。 In step S106, the clogging determination unit 126 of the control unit 121 determines that the filter 114 is clogged. After the present process, the process proceeds to step S107.
　ステップＳ１０７にて、制御部１２１の警報発令部１２７は、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに、警報を発令させる。警報発令部１２７は、リモコン１１９の表示部１２２にフィルタ１１４の目詰まりの警報を表示してもよい。また、警報発令部１２７は、通信網を介して管理者にフィルタ１１４の目詰まりの警報を通報してもよい。警報発令部１２７は、たとえば、リモコン１１９にフィルタ清掃サインを表示する。本処理の後、ステップＳ１０８に移行する。 In step S107, the alarm issuing unit 127 of the control unit 121 issues an alarm when the clogging determination unit 126 determines that clogging of the filter 114 has occurred. The alarm issuing unit 127 may display an alarm of clogging of the filter 114 on the display unit 122 of the remote control 119. In addition, the alarm issuing unit 127 may notify the administrator of an alarm on the clogging of the filter 114 via the communication network. The alarm issuing unit 127 displays, for example, a filter cleaning sign on the remote control 119. After the present process, the process proceeds to step S108.
　ステップＳ１０８にて、制御部１２１の目詰まり運転部１２８は、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに、リモコン１１９によって設定された設定温度を第２温度センサ１２０の測定温度Ｔ２と比較して空調を実施する。つまり、目詰まり運転部１２８は、フィルタ１１４の目詰まりが発生したときに、実際の空調対象の居室空間１１０に配置されたリモコン１１９に設けられた第２温度センサ１２０の測定温度Ｔ２によって空調を実施する。これにより、居室空間１１０の室温が設定温度から大きく外れることを防止する。そして、過冷房又は過暖房が抑制される。本処理の後、ステップＳ１０９に移行する。 In step S108, when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, the clogging operation unit 128 of the control unit 121 sets the temperature set by the remote control 119 to the second temperature sensor 120. Air conditioning is performed in comparison with the measurement temperature T2 of. That is, when the clogging of the filter 114 occurs, the clogging operation unit 128 performs the air conditioning by the measurement temperature T2 of the second temperature sensor 120 provided in the remote control 119 disposed in the room space 110 to be actually air conditioned carry out. This prevents the room temperature of the room space 110 from deviating significantly from the set temperature. Then, overcooling or overheating is suppressed. After the present process, the process proceeds to step S109.
　ここで、第２温度センサ１２０の測定温度Ｔ２が検知室温として用いられている場合には、送風運転であるサーモオフ運転状態から冷暖の空調制御を伴うサーモオン運転が継続されても、△Ｔが増加を続ける。このため、制御部１２１は、サーモオン運転開始を検知し、かつ、△Ｔ≧閾値αである場合にも、フィルタ１１４の目詰まりと判定してもよい。 Here, when the measured temperature T2 of the second temperature sensor 120 is used as the detected room temperature, ΔT increases even if the thermo-on operation with air conditioning control of cooling and heating is continued from the thermo-off operation state which is the air blowing operation. Continue. Therefore, the control unit 121 may detect the start of the thermo-on operation and may determine that the filter 114 is clogged even when ΔT △ the threshold value α.
　ステップＳ１０９にて、制御部１２１は、サーモオフ運転及びサーモオン運転での空調を実施し、フィルタ１１４の目詰まりが解消されたか否かを判別する。具体的には、空調を実施しつつ、△Ｔ＜閾値αとなったか否かを判別する。ステップＳ１０９にて、フィルタ１１４の目詰まりが解消された場合には、ステップＳ１１０に移行する。ステップＳ１０９にて、フィルタ１１４の目詰まりが解消されない場合には、ステップＳ１０７に戻る。 In step S109, the control unit 121 performs air conditioning in the thermo-off operation and the thermo-on operation, and determines whether or not the clogging of the filter 114 has been eliminated. Specifically, while performing air conditioning, it is determined whether or not ΔT <threshold α. When clogging of the filter 114 is eliminated in step S109, the process proceeds to step S110. If clogging of the filter 114 is not eliminated in step S109, the process returns to step S107.
　ステップＳ１１０にて、制御部１２１の通常運転部１２９は、通常時にリモコン１１９によって設定された設定温度を第１温度センサ１１２の測定温度Ｔ１と比較して空調を実施する。つまり、通常運転部１２９は、フィルタ１１４の目詰まりが無いときに、空調制御の効率を図るため、室内機１０２の吸込み空気温度を測定する第１温度センサ１１２の測定温度Ｔ１によって空調を実施する。 In step S110, the normal operation unit 129 of the control unit 121 performs air conditioning by comparing the set temperature set by the remote control 119 with the measurement temperature T1 of the first temperature sensor 112 at normal times. That is, when there is no clogging of the filter 114, the normal operation unit 129 performs the air conditioning by the measurement temperature T1 of the first temperature sensor 112 that measures the suction air temperature of the indoor unit 102 in order to achieve the efficiency of the air conditioning control. .
　以上のように、室内機１０２の第１温度センサ１１２とリモコン１１９に内蔵された第２温度センサ１２０とがフィルタ１１４の取り付けられた通気口１１５を介して天井懐１１１と居室空間１１０とに分けて設置される。そのため、フィルタ１１４の目詰まり時にダクト１１６から外気取込み口１１７に取り込む外気の導入量が増加し、天井懐１１１と居室空間１１０との間で温度差が発生する。この現象に鑑みて、フィルタ１１４の目詰まりが検知できる。 As described above, the first temperature sensor 112 of the indoor unit 102 and the second temperature sensor 120 built in the remote control 119 are divided into the ceiling pocket 111 and the room space 110 through the vent 115 to which the filter 114 is attached. Will be installed. Therefore, when the filter 114 is clogged, the amount of outside air introduced from the duct 116 into the outside air intake port 117 is increased, and a temperature difference is generated between the ceiling pocket 111 and the room space 110. In view of this phenomenon, clogging of the filter 114 can be detected.
　よって、室内機１０２から独立したフィルタ１１４の目詰まり状態が検知でき、作業者が適切なタイミングで清掃でき、フィルタ１１４が清浄に保全できる。また、フィルタ１１４の目詰まりによる空調能力の低下が防げる。 Therefore, the clogging state of the filter 114 independent of the indoor unit 102 can be detected, the operator can clean at an appropriate timing, and the filter 114 can be maintained clean. In addition, it is possible to prevent a decrease in air conditioning capacity due to clogging of the filter 114.
＜実施の形態１の効果＞
　実施の形態１によれば、空気調和装置１００は、室内機１０２を備える。空気調和装置１００は、室内機１０２の吸込み口１０２ａの外側に配置され、室内機１０２が調和空気を吹き出す居室空間１１０からの還気から異物を取り除くフィルタ１１４を備える。空気調和装置１００は、吸込み口１０２ａに外気を供給する外気取込み口１１７を備える。空気調和装置１００は、吸込み口１０２ａの内側に配置され、調和前の吸込み空気の温度を測定する第１温度センサ１１２を備える。空気調和装置１００は、設定温度を調節するリモコン１１９を備える。空気調和装置１００は、居室空間１１０に配置された第２温度センサ１２０を備える。空気調和装置１００は、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分△Ｔが閾値α以上であるとフィルタ１１４の目詰まりが発生したと判定する目詰まり判別部１２６を有した制御部１２１を備える。 <Effect of Embodiment 1>
According to the first embodiment, the air conditioning apparatus 100 includes the indoor unit 102. The air conditioning apparatus 100 is disposed outside the suction port 102a of the indoor unit 102, and includes a filter 114 that removes foreign matter from the return air from the room space 110 from which the indoor unit 102 blows the conditioned air. The air conditioning apparatus 100 includes an outside air intake port 117 that supplies the outside air to the intake port 102a. The air conditioning apparatus 100 includes a first temperature sensor 112 which is disposed inside the suction port 102a and measures the temperature of suction air before harmony. The air conditioner 100 includes a remote control 119 that adjusts the set temperature. The air conditioning apparatus 100 includes a second temperature sensor 120 disposed in the living room space 110. The air conditioner 100 determines that the filter 114 is clogged if the difference ΔT between the measured temperature T1 of the first temperature sensor 112 and the measured temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold α. A control unit 121 having a determination unit 126 is provided.
　この構成によれば、第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分△Ｔが閾値α以上であるとフィルタ１１４の目詰まりが発生したと判定する目詰まり判別部１２６を有した制御部１２１を備える。これにより、室内機１０２から離れて室内機１０２から独立した場所に設置されたフィルタ１１４の目詰まりを間接的に判別できる。したがって、フィルタ１１４の目詰まりを機械的に容易に判別し、作業者が適切なタイミングでフィルタ１１４を掃除できる。 According to this configuration, the clogging is determined that the filter 114 is clogged if the difference ΔT between the measurement temperature T1 of the first temperature sensor 112 and the measurement temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold α. A control unit 121 having a determination unit 126 is provided. Thereby, it is possible to indirectly determine clogging of the filter 114 installed at a location separated from the indoor unit 102 and independent from the indoor unit 102. Therefore, clogging of the filter 114 can be easily determined mechanically, and the operator can clean the filter 114 at an appropriate timing.
　実施の形態１によれば、室内機１０２は、居室空間１１０と仕切られた天井懐１１１に配置されている。フィルタ１１４は、居室空間１１０と天井懐１１１との仕切り部分に空気を疎通自在に配置されている。外気取込み口１１７は、外部から通じるダクト１１６を介して天井懐１１１に設けられている。 According to the first embodiment, the indoor unit 102 is disposed in the ceiling 111 separated from the room space 110. The filter 114 is disposed such that air can freely pass through the partition between the living room space 110 and the ceiling panel 111. The outside air intake port 117 is provided in the ceiling pocket 111 via a duct 116 communicating from the outside.
　この構成によれば、目詰まり判別部１２６は、天井懐１１１に配置された室内機１０２の吸込み口１０２ａの内側に配置された第１温度センサ１１２の測定温度Ｔ１と、天井懐１１１と仕切られた居室空間１１０に配置された第２温度センサ１２０の測定温度Ｔ２と、の差分△Ｔが閾値α以上であると、フィルタ１１４の目詰まりが発生したと判定できる。したがって、フィルタ１１４の目詰まりを機械的に容易に判別し、作業者が適切なタイミングでフィルタ１１４を掃除できる。 According to this configuration, the clogging determination unit 126 is divided from the measured temperature T1 of the first temperature sensor 112 disposed inside the suction port 102a of the indoor unit 102 disposed in the ceiling pocket 111 and the ceiling pocket 111 It can be determined that clogging of the filter 114 has occurred if the difference ΔT between the measured temperature T2 of the second temperature sensor 120 disposed in the living room space 110 and the threshold value α. Therefore, clogging of the filter 114 can be easily determined mechanically, and the operator can clean the filter 114 at an appropriate timing.
　実施の形態１によれば、空気調和装置１００は、設定温度を調節するリモコン１１９を備える。第２温度センサ１２０は、リモコン１１９に設けられている。 According to the first embodiment, the air conditioning apparatus 100 includes the remote control 119 that adjusts the set temperature. The second temperature sensor 120 is provided to the remote control 119.
　この構成によれば、第２温度センサ１２０は、リモコン１１９に一体化され、リモコン１１９を居室空間１１０に配置すれば個別に配置する必要がなくなる。これにより、空気調和装置１００の設置作業が容易になる。 According to this configuration, the second temperature sensor 120 is integrated with the remote controller 119, and if the remote controller 119 is disposed in the living room space 110, it is not necessary to individually arrange the second temperature sensor 120. Thereby, the installation work of the air conditioning apparatus 100 becomes easy.
　実施の形態１によれば、制御部１２１は、通常時にリモコン１１９などによって設定された設定温度を第１温度センサ１１２の測定温度Ｔ１と比較して空調を実施する通常運転部１２９を有する。 According to the first embodiment, the control unit 121 has the normal operation unit 129 that performs air conditioning by comparing the set temperature set by the remote control 119 or the like at the normal time with the measurement temperature T1 of the first temperature sensor 112.
　この構成によれば、通常運転部１２９は、通常時にリモコン１１９などによって設定された設定温度を第１温度センサ１１２の測定温度Ｔ１と比較して空調を実施できる。これにより、空気調和装置１００は、通常時に効率良く快適な空調を実施できる。 According to this configuration, the normal operation unit 129 can perform air conditioning by comparing the set temperature set by the remote control 119 or the like at the normal time with the measurement temperature T1 of the first temperature sensor 112. Thereby, the air conditioning apparatus 100 can efficiently perform comfortable air conditioning at normal times.
　実施の形態１によれば、制御部１２１は、第１温度センサ１１２の測定温度Ｔ１が設定温度に達した際に送風運転に切り替わるサーモオフ運転を検知するサーモオフ運転検知部１２５を有する。目詰まり判別部１２６は、サーモオフ運転検知部１２５がサーモオフ運転開始を検知した直後に差分△Ｔが閾値α以上であるとフィルタ１１４の目詰まりが発生したと判定する。 According to the first embodiment, the control unit 121 includes the thermo-off operation detection unit 125 that detects the thermo-off operation that switches to the air-blowing operation when the measured temperature T1 of the first temperature sensor 112 reaches the set temperature. The clogging determination unit 126 determines that clogging of the filter 114 has occurred if the difference ΔT is equal to or greater than the threshold value α immediately after the thermo-off operation detection unit 125 detects the start of the thermo-off operation.
　この構成によれば、サーモオフ運転開始の直後は、天井懐１１１に配置された室内機１０２の吸込み口１０２ａの内側に配置された第１温度センサ１１２の測定温度Ｔ１が空調対象の居室空間１１０の設定温度に達する。この場合には、通常であれば第１温度センサ１１２の測定温度Ｔ１と空調対象の居室空間１１０の温度とが一致するべきである。しかし、サーモオフ運転開始の直後に第１温度センサ１１２の測定温度Ｔ１と第２温度センサ１２０の測定温度Ｔ２との差分△Ｔが閾値α以上である場合には、実際に居室空間１１０に配置されたリモコン１１９に設けられた第２温度センサ１２０の測定温度Ｔ２が第１温度センサ１１２の測定温度Ｔ２から乖離している。すなわち、天井懐１１１に配置された室内機１０２の吸込み口１０２ａの内側に配置された第１温度センサ１１２の測定温度Ｔ１は、フィルタ１１４が目詰まりし、外気取込み口１１７からの外気取入れ量がより多くなった状態であると判断できる。そのため、目詰まり判別部１２６は、この場合にフィルタ１１４の目詰まりが発生したと判定できる。 According to this configuration, immediately after the start of the thermo-off operation, the measurement temperature T1 of the first temperature sensor 112 disposed inside the suction port 102a of the indoor unit 102 disposed in the ceiling pocket 111 is the room temperature 110 of the air conditioning target. The set temperature is reached. In this case, the measured temperature T1 of the first temperature sensor 112 should normally match the temperature of the room 110 to be air-conditioned. However, if the difference ΔT between the measured temperature T1 of the first temperature sensor 112 and the measured temperature T2 of the second temperature sensor 120 is equal to or greater than the threshold α immediately after the start of the thermo-off operation, it is actually arranged in the room 110 The measured temperature T2 of the second temperature sensor 120 provided in the remote controller 119 deviates from the measured temperature T2 of the first temperature sensor 112. That is, the measured temperature T1 of the first temperature sensor 112 disposed inside the suction port 102a of the indoor unit 102 disposed in the ceiling pocket 111 clogs the filter 114, and the outside air intake amount from the outside air intake port 117 is It can be determined that there is more. Therefore, the clogging determination unit 126 can determine that clogging of the filter 114 has occurred in this case.
　実施の形態１によれば、制御部１２１は、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに、警報を発令させる警報発令部１２７を有する。 According to the first embodiment, the control unit 121 has the alarm issuing unit 127 that issues an alarm when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred.
　この構成によれば、警報発令部１２７が警報を発令させることにより、作業者がフィルタ１１４の目詰まりした状態を直ぐに確認できる。したがって、フィルタ１１４の目詰まりを機械的に容易に判別し、作業者が適切なタイミングでフィルタ１１４を掃除できる。 According to this configuration, when the alarm issuing unit 127 issues an alarm, it is possible to immediately confirm a state in which the filter 114 is clogged. Therefore, clogging of the filter 114 can be easily determined mechanically, and the operator can clean the filter 114 at an appropriate timing.
　実施の形態１によれば、制御部１２１は、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに、リモコン１１９などによって設定された設定温度を第２温度センサ１２０の測定温度Ｔ２と比較して空調を実施する目詰まり運転部１２８を有する。 According to the first embodiment, when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, the control unit 121 measures the set temperature set by the remote control 119 or the like by the second temperature sensor 120. It has a clogging operation unit 128 that performs air conditioning as compared to the temperature T2.
　この構成によれば、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定したときに第１温度センサ１１２の測定温度Ｔ１によって居室空間１１０の室温を検知している場合には、正確な室温が検知できなくなる。このため、空気調和装置１００は、過冷房又は過暖房の空調を実施するおそれが生じる。そこで、目詰まり判別部１２６がフィルタ１１４の目詰まりが発生したと判定した場合には、実際の空調対象の居室空間１１０に配置されたリモコン１１９に設けられた第２温度センサ１２０の測定温度Ｔ２によって空調を継続し、空調の効率的な制御が犠牲にされつつも、室温測定の乖離が防がれ、居室空間１１０の快適性が優先的に維持できる。 According to this configuration, when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, it is accurate when the room temperature of the living space 110 is detected by the measurement temperature T1 of the first temperature sensor 112. Room temperature can not be detected. For this reason, the air conditioning apparatus 100 may perform overcooling or overheating air conditioning. Therefore, when the clogging determination unit 126 determines that the clogging of the filter 114 has occurred, the measured temperature T2 of the second temperature sensor 120 provided in the remote control 119 disposed in the room space 110 to be actually air conditioned As a result, the air conditioning is continued, and even though the efficient control of the air conditioning is sacrificed, the deviation of the room temperature measurement can be prevented, and the comfort of the living space 110 can be maintained preferentially.
　１００　空気調和装置、１０１　室外機、１０２　室内機、１０２ａ　吸込み口、１０３　ガス冷媒配管、１０４　液冷媒配管、１０５　圧縮機、１０６　四方弁、１０７　室外熱交換器、１０８　膨張弁、１０９　室内熱交換器、１１０　居室空間、１１１　天井懐、１１２　第１温度センサ、１１３　送風ファン、１１４　フィルタ、１１５　通気口、１１６　ダクト、１１７　外気取込み口、１１８　通信線、１１９　リモコン、１２０　第２温度センサ、１２１　制御部、１２２　表示部、１２３　操作部、１２４　温度差分演算部、１２５　サーモオフ運転検知部、１２６　目詰まり判別部、１２７　警報発令部、１２８　目詰まり運転部、１２９　通常運転部、１３０　吹出し口。 Reference Signs List 100 air conditioner, 101 outdoor unit, 102 indoor unit, 102 a suction port, 103 gas refrigerant piping, 104 liquid refrigerant piping, 105 compressor, 106 four-way valve, 107 outdoor heat exchanger, 108 expansion valve, 109 indoor heat exchanger , 110 room space, 111 ceiling space, 112 first temperature sensor, 113 air blower fan, 114 filter, 115 air vent, 116 duct, 117 outside air intake, 118 communication line, 119 remote controller, 120 second temperature sensor, 121 controller , 122 display unit, 123 operation unit, 124 temperature difference calculation unit, 125 thermo-off operation detection unit, 126 clogging determination unit, 127 alarm issuing unit, 128 clogging operation unit, 129 normal operation unit, 130 outlet.

Claims (7)

  1. 　室内機と、
    　前記室内機の吸込み口の外側に配置され、前記室内機が調和空気を吹き出す居室空間からの還気から異物を取り除くフィルタと、
    　前記吸込み口に外気を供給する外気取込み口と、
    　前記吸込み口の内側に配置され、調和前の吸込み空気の温度を測定する第１温度センサと、
    　前記居室空間に配置された第２温度センサと、
    　前記第１温度センサの測定温度と前記第２温度センサの測定温度との差分が閾値以上であると前記フィルタの目詰まりが発生したと判定する目詰まり判別部を有した制御部と、
    を備える空気調和装置。     Indoor unit,
    A filter disposed outside the suction port of the indoor unit, for removing foreign matter from the return air from the room space from which the indoor unit blows off the conditioned air;
    An external air intake port for supplying external air to the intake port;
    A first temperature sensor disposed inside the suction port and measuring a temperature of suction air before harmony;
    A second temperature sensor disposed in the living room space;
    A control unit having a clogging determination unit that determines that the filter is clogged if the difference between the temperature measured by the first temperature sensor and the temperature measured by the second temperature sensor is equal to or greater than a threshold value;
    An air conditioner comprising:
  2. 　前記室内機は、前記居室空間と仕切られた天井懐に配置され、
    　前記フィルタは、前記居室空間と前記天井懐との仕切り部分に空気を疎通自在に配置され、
    　前記外気取込み口は、外部から通じるダクトを介して前記天井懐に設けられる請求項１に記載の空気調和装置。     The indoor unit is disposed in a ceiling pocket separated from the living room space,
    The filter is disposed so as to allow air to pass through a partition between the living room space and the ceiling pocket.
    The air conditioning apparatus according to claim 1, wherein the outside air intake port is provided in the ceiling pocket via a duct that leads from the outside.
  3. 　設定温度を調節するリモコンを備え、
    　前記第２温度センサは、前記リモコンに設けられる請求項１又は２に記載の空気調和装置。     It has a remote control to adjust the set temperature,
    The air conditioner according to claim 1, wherein the second temperature sensor is provided to the remote control.
  4. 　前記制御部は、通常時に設定された設定温度を前記第１温度センサの測定温度と比較して空調を実施する通常運転部を有する請求項１～３のいずれか１項に記載の空気調和装置。 The air conditioning apparatus according to any one of claims 1 to 3, wherein the control unit includes a normal operation unit configured to perform air conditioning by comparing a set temperature set at a normal time with a measurement temperature of the first temperature sensor. .
  5. 　前記制御部は、前記第１温度センサの測定温度が設定温度に達した際に送風運転に切り替わるサーモオフ運転を検知するサーモオフ運転検知部を有し、
    　前記目詰まり判別部は、前記サーモオフ運転検知部が前記サーモオフ運転開始を検知した直後に前記差分が前記閾値以上であると前記フィルタの目詰まりが発生したと判定する請求項４に記載の空気調和装置。     The control unit has a thermo-off operation detection unit that detects a thermo-off operation that switches to the air-blowing operation when the temperature measured by the first temperature sensor reaches a set temperature.
    The air conditioning according to claim 4, wherein the clogging determination unit determines that clogging of the filter occurs when the difference is equal to or more than the threshold immediately after the thermo-off operation detection unit detects the start of the thermo-off operation. apparatus.
  6. 　前記制御部は、前記目詰まり判別部が前記フィルタの目詰まりが発生したと判定したときに、警報を発令させる警報発令部を有する請求項１～５のいずれか１項に記載の空気調和装置。 The air conditioner according to any one of claims 1 to 5, wherein the control unit has a warning issuing unit that issues a warning when the clogging determination unit determines that the filter is clogged. .
  7. 　前記制御部は、前記目詰まり判別部が前記フィルタの目詰まりが発生したと判定したときに、設定された設定温度を前記第２温度センサの測定温度と比較して空調を実施する目詰まり運転部を有する請求項１～６のいずれか１項に記載の空気調和装置。 The control unit performs the air conditioning operation by comparing the set temperature with the measurement temperature of the second temperature sensor when the clogging determination unit determines that the clogging of the filter has occurred. The air conditioner according to any one of claims 1 to 6, further comprising:
PCT/JP2018/000619 2018-01-12 2018-01-12 Air-conditioning device WO2019138534A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2018/000619 WO2019138534A1 (en) 2018-01-12 2018-01-12 Air-conditioning device
JP2019564237A JP6910474B2 (en) 2018-01-12 2018-01-12 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/000619 WO2019138534A1 (en) 2018-01-12 2018-01-12 Air-conditioning device

Publications (1)

Publication Number Publication Date
WO2019138534A1 true WO2019138534A1 (en) 2019-07-18

Family

ID=67219449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/000619 WO2019138534A1 (en) 2018-01-12 2018-01-12 Air-conditioning device

Country Status (2)

Country Link
JP (1) JP6910474B2 (en)
WO (1) WO2019138534A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111288607A (en) * 2020-03-04 2020-06-16 宁波奥克斯电气股份有限公司 Method and device for detecting filth blockage of air conditioner heat exchanger and air conditioner
CN111288608A (en) * 2020-03-04 2020-06-16 宁波奥克斯电气股份有限公司 Control method and control device for filter screen filth blockage reminding and air conditioner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08261540A (en) * 1995-03-24 1996-10-11 Mitsubishi Electric Corp Air conditioner
JPH0942744A (en) * 1995-07-31 1997-02-14 Toyotomi Co Ltd Controller for air conditioner
JP2006090595A (en) * 2004-09-22 2006-04-06 Fujitsu General Ltd Air conditioner
WO2007004557A1 (en) * 2005-06-30 2007-01-11 Daikin Industries, Ltd. Ventilation device
US20130158717A1 (en) * 2011-12-14 2013-06-20 Honeywell International Inc. Hvac controller with delta-t based diagnostics
JP2013164190A (en) * 2012-02-10 2013-08-22 Daikin Industries Ltd Air conditioning apparatus
US9702577B1 (en) * 2015-06-24 2017-07-11 Amazon Technologies, Inc. Dynamic determination of fan speeds

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10300121A (en) * 1997-04-25 1998-11-13 Hitachi Ltd Air conditioner with spacer for introducing outer air
JP2017219298A (en) * 2016-06-10 2017-12-14 株式会社東芝 Operation map creation device, air conditioning control device, operation map creation method, and computer program

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08261540A (en) * 1995-03-24 1996-10-11 Mitsubishi Electric Corp Air conditioner
JPH0942744A (en) * 1995-07-31 1997-02-14 Toyotomi Co Ltd Controller for air conditioner
JP2006090595A (en) * 2004-09-22 2006-04-06 Fujitsu General Ltd Air conditioner
WO2007004557A1 (en) * 2005-06-30 2007-01-11 Daikin Industries, Ltd. Ventilation device
US20130158717A1 (en) * 2011-12-14 2013-06-20 Honeywell International Inc. Hvac controller with delta-t based diagnostics
JP2013164190A (en) * 2012-02-10 2013-08-22 Daikin Industries Ltd Air conditioning apparatus
US9702577B1 (en) * 2015-06-24 2017-07-11 Amazon Technologies, Inc. Dynamic determination of fan speeds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111288607A (en) * 2020-03-04 2020-06-16 宁波奥克斯电气股份有限公司 Method and device for detecting filth blockage of air conditioner heat exchanger and air conditioner
CN111288608A (en) * 2020-03-04 2020-06-16 宁波奥克斯电气股份有限公司 Control method and control device for filter screen filth blockage reminding and air conditioner
CN111288607B (en) * 2020-03-04 2022-02-08 宁波奥克斯电气股份有限公司 Method and device for detecting filth blockage of air conditioner heat exchanger and air conditioner

Also Published As

Publication number Publication date
JPWO2019138534A1 (en) 2020-08-20
JP6910474B2 (en) 2021-07-28

Similar Documents

Publication Publication Date Title
EP3333509B1 (en) Refrigeration cycle apparatus
AU2018422256B2 (en) Refrigerant leakage determination device, air-conditioning apparatus, and refrigerant leakage determination method
US10724766B2 (en) Refrigeration cycle apparatus
AU2016404760B2 (en) Refrigeration cycle apparatus
CN114450524B (en) Air-conditioning ventilation system
WO2017199808A1 (en) Refrigeration cycle device
AU2018410266B2 (en) Indoor unit of air-conditioning apparatus, and air-conditioning apparatus including the indoor unit
KR20100059522A (en) A control method of an air conditioner
WO2017187562A1 (en) Refrigeration cycle apparatus
WO2020115935A1 (en) Air conditioning system
WO2019138534A1 (en) Air-conditioning device
JP2019168194A (en) Outside air treatment unit
JP6503246B2 (en) Control device of heat source machine for air handling unit
KR20080062985A (en) Air conditioning system and control method for the same
JP6661775B2 (en) Air conditioner
EP4160101A1 (en) A ventilation system for a room
KR20090067738A (en) Control method of air conditioner
JP2011149646A (en) Air conditioner
KR101911271B1 (en) Indoor unit and Method for controlling it
WO2019198176A1 (en) Indoor unit for air conditioning device
JP3523428B2 (en) Air conditioner
KR20100013745A (en) Air conditioner with ability for inhibiting ice formation of heat exchanger and method for controlling the same
KR20010062961A (en) Wind force controller and mode for air conditioner
KR20060034113A (en) Method for display operation condition of outdoor unit in air-conditioner
JPH11248233A (en) Air-conditioner with humidifying function

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18900164

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019564237

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18900164

Country of ref document: EP

Kind code of ref document: A1