WO2015072311A1 - 室内機 - Google Patents
室内機 Download PDFInfo
- Publication number
- WO2015072311A1 WO2015072311A1 PCT/JP2014/078328 JP2014078328W WO2015072311A1 WO 2015072311 A1 WO2015072311 A1 WO 2015072311A1 JP 2014078328 W JP2014078328 W JP 2014078328W WO 2015072311 A1 WO2015072311 A1 WO 2015072311A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fan
- refrigerant
- indoor unit
- leakage
- control device
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/029—Control issues
- F25B2313/0293—Control issues related to the indoor fan, e.g. controlling speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention relates to an indoor unit, and more particularly to an indoor unit using a combustible refrigerant.
- the remote controller for an indoor unit described in Japanese Patent Laid-Open No. 2000-35267 is configured to warn by performing light and / or sound and / or display when refrigerant gas is detected. ing.
- alerting cannot be stopped until the service provider arrives and responds.
- the form of notification is a sound output like a buzzer and such notification is executed for a long time in the night, it causes noise damage to the surroundings, and the user's dissatisfaction is amplified.
- An object of the present invention is to provide an indoor unit in which a user can arbitrarily stop a notification that is started based on the occurrence of refrigerant leakage.
- the indoor unit according to the present invention is A casing, A heat exchanger through which a flammable refrigerant flows; With fans, A detection sensor for detecting leakage of the combustible refrigerant; A reporting device for reporting leakage of the flammable refrigerant; A control device for controlling the operation of the fan and the alarm device; An operation device for inputting a stop command for the fan and the alarm device to the control device based on a manual operation; When the leakage of the flammable refrigerant is detected by the detection sensor, the control device activates the fan when the fan is stopped, activates the alarm device, and activates the fan by the operation device. The stop command is ignored, and the stop command for the alarm device by the operating device is allowed.
- the user can arbitrarily stop the alarm that is started based on the occurrence of refrigerant leakage.
- the flammable refrigerant includes a slightly flammable refrigerant.
- the reporting device is a sounding device.
- the indoor unit since the refrigerant leak is notified by sound, the user can easily recognize the refrigerant leak. In particular, it is possible to prevent the sound output from the sounding device from continuing for reporting and causing noise damage to the surroundings.
- the alarm device is a sounding device and a light emitting device.
- the leakage of the refrigerant is notified by sound generation and light emission, the user can easily recognize the leakage of the refrigerant. In particular, it is possible to prevent the sound output from the sounding device from continuing for reporting and causing noise damage to the surroundings.
- the control device stops the fan after a predetermined time has elapsed after the leakage of the combustible refrigerant is detected.
- the user can recognize that the risk associated with the leakage of the refrigerant has decreased to some extent due to the stop of the fan. Further, when the risk associated with refrigerant leakage is low, it is possible to suppress the generation of noise and the increase in power consumption by continuing to drive the fan.
- the user can arbitrarily stop the alarm that is started based on the occurrence of refrigerant leakage.
- FIG. 1 is a cross-sectional view of the indoor unit according to the first embodiment of the present invention as seen from the front.
- FIG. 2 is a cross-sectional view seen from the right side of the indoor unit according to the first embodiment.
- the indoor unit 1 includes a casing 2, a heat exchanger 3, a fan 4, a control device 5, a detection sensor 6, a buzzer 7, an operation lamp 9, and an operation.
- a panel 11 The indoor unit 1 is disposed indoors.
- the indoor unit 1 is connected to an outdoor unit (not shown) to constitute an air conditioner.
- the casing 2 is a floor type and is installed on the floor surface 101 in the room.
- the floor-standing type includes a type installed at a slightly higher position from the floor surface 101 in addition to a type installed on the floor surface 101.
- the casing 2 has a substantially rectangular parallelepiped shape, and has a suction port 2a and a blowout port 2b on the front surface.
- the blower outlet 2b is provided in the lower part of the casing 2, and is arrange
- the heat exchanger 3 is disposed in the casing 2.
- a combustible refrigerant flows through the heat exchanger 3.
- the combustible refrigerant is R32.
- the refrigerant may be a single refrigerant made of R32 or a mixed refrigerant mainly composed of R32.
- the heat exchanger 3 is connected to an outdoor unit (not shown) through the refrigerant pipe 10.
- the refrigerant pipe 10 is introduced into the casing 2 through a hole 31 provided in the lower part of the side surface of the casing 2.
- the refrigerant pipe 10 is connected to the heat transfer tube 8 of the heat exchanger 3.
- the refrigerant circulates between the indoor unit 1 and the outdoor unit through the refrigerant pipe 10.
- the fan 4 is located behind the heat exchanger 3. When the fan 4 rotates, indoor air is sucked into the casing 2 through the suction port 2a, and then heat is exchanged with the refrigerant through the heat exchanger 3. The air after heat exchange flows downward through a gap between the fan 4 and the back plate of the casing 2, and then blows out into the room through the air outlet 2 b.
- the detection sensor 6 is mounted in the casing 2.
- the detection sensor 6 is located in the lower part of the casing 2 and is located below the heat exchanger 3.
- the detection sensor 6 detects the refrigerant concentration in the air and detects leakage of the refrigerant from the indoor unit 1.
- the detection sensor 6 is, for example, a semiconductor chlorofluorocarbon sensor.
- the detection sensor 6 may be another known sensor such as an infrared absorption sensor.
- the refrigerant may leak from the heat transfer pipe 8, the refrigerant pipe 10, or the like. Since the flammable refrigerant has a property that it is heavier than air, it tends to accumulate on the floor. Therefore, refrigerant leakage can be effectively detected by arranging the detection sensor 6 on the lower side.
- the buzzer 7 is attached to the upper surface of the casing 2.
- the buzzer 7 is a device (sound generator) that outputs sound, and is used as an alarm device that issues an alarm when an abnormality such as refrigerant leakage occurs.
- the operation lamp 9 is a device (light emitting device) that outputs light such as an LED lamp.
- the operation lamp 9 is basically used as a display device that displays the operation state of the indoor unit 1. That is, the operation lamp 9 is lit when the indoor unit 1 is operating, that is, when a compressor (not shown) is operating and the fan 4 is operating.
- the operation lamp 9 is also used as a notification device that issues an alarm by blinking when an abnormality such as refrigerant leakage occurs.
- the operation panel 11 is attached to the upper surface of the casing 2.
- the operation panel 11 is an operation device for inputting a command for operating the indoor unit 1.
- the operation panel 11 includes a buzzer stop button 12 and an operation stop button 13 as input devices related to the notification of refrigerant leakage.
- the buzzer stop button 12 is a push button type switch, and is an input device for inputting a stop command for the buzzer 7 to the control device 5 based on a manual operation.
- the operation stop button 13 is a push button type switch, and is an input device for inputting an operation stop command for the indoor unit 1 to the control device 5 based on a manual operation.
- the operation of the indoor unit 1 means the operation of the compressor (not shown), the operation of the fan 4, and the operation of the operation lamp 9.
- the control device 5 is mounted in the casing 2.
- the control device 5 controls the operation of the indoor unit 1.
- FIG. 3 is a control block diagram showing a control mechanism related to the refrigerant leakage notification according to the first embodiment.
- the control device 5 determines whether or not the refrigerant leaks from the heat exchanger 3 and / or the refrigerant pipe in the indoor unit 1.
- the control device 5 operates the fan 4 so that the refrigerant diffuses in the air, and issues a notification to notify the user of the refrigerant leak.
- the buzzer 7 and the operation lamp 9 as devices are operated. At this time, the buzzer 7 outputs a warning sound and the operation lamp 9 repeats blinking.
- the control device 5 stops the operation of the buzzer 7. On the other hand, even if the operation stop button 13 is pressed while the fan 4 and the operation lamp 9 are operating, the control device 5 issues a stop command for the fan 4 and an operation stop command for the operation lamp 9 by operating the operation stop button 13. Ignore and continue the operation of the fan 4 and the operation lamp 9. A specific processing flow will be described below.
- FIG. 4 is a flowchart showing a processing flow related to the notification of refrigerant leakage according to the first embodiment.
- step S ⁇ b> 1 the control device 5 determines whether or not refrigerant leakage has been detected based on the output signal from the detection sensor 6. When the leakage of the refrigerant is detected, step S2 is executed. If the leakage of the refrigerant is not detected, step S1 is executed again.
- step S2 the operation mode of the indoor unit 1 shifts from the normal mode to the error mode.
- the operation mode does not return to the normal mode and the operation of the indoor unit 1 cannot be resumed unless the return work by the service provider is performed.
- step S2 the control device 5 starts the operation of the fan 4, starts the operation of the buzzer 7, and starts the operation lamp 9 to blink.
- the control device 5 stops the operation of the indoor unit 1 in step S2.
- the operation of the indoor unit 1 is stopped, the operation of the compressor and the fan 4 is basically stopped, and the operation lamp 9 that is lit is turned off.
- the control device 5 stops the operation of the compressor and turns off the operation lamp 9, but does not stop the operation of the fan 4. That is, in step S2, the control device 5 starts the stopped fan 4 or continues the operation of the operating fan 4.
- step S3 is executed.
- step S3 the control device 5 determines whether or not there is a buzzer stop signal.
- the buzzer stop signal is input to the control device 5 when the buzzer stop button 12 is operated by the user. If there is a buzzer stop signal, step S4 is executed. If there is no buzzer stop signal, step S5 is executed without executing step S4. In step S ⁇ b> 4, the control device 5 stops the operation of the buzzer 7. Thereby, the report of the refrigerant leak by sound output stops. Following step S4, step S5 is executed.
- step S5 the control device 5 determines whether or not a predetermined time has elapsed since the operation of the fan 4 was started. As described above, when the leakage of the refrigerant is detected, the control device 5 operates the fan 4 so that the refrigerant diffuses in the air. Since the flammable refrigerant has a property that it is heavier than air, when the fan 4 is stopped, the leaked refrigerant does not diffuse and tends to accumulate on the floor. On the other hand, when the fan 4 is operated for a certain time, it is considered that the refrigerant is sufficiently diffused and does not accumulate on the floor again.
- the minimum continuous operation time of the fan 4 necessary for diffusing the refrigerant is specified.
- This minimum necessary continuous operation time is set as a predetermined time, for example, 30 minutes. If the predetermined time has elapsed, step S6 is executed. If the predetermined time has not elapsed, step S3 is executed again. In step S ⁇ b> 6, the control device 5 stops the operation of the fan 4. Following step S6, step S3 is executed again.
- the operation stop signal is a signal for stopping the operation of the compressor, the fan 4, and the operation lamp 9, and includes a stop signal for the fan 4 and a stop signal for the operation lamp 9. For this reason, the processing flow shown in FIG. 4 does not include processing for determining whether or not there is an operation stop signal.
- step S3 is executed again after step S4.
- the indoor unit 1 according to the first embodiment has the following operations and effects by the following configuration described above.
- the indoor unit 1 includes a casing 2, a heat exchanger 3 in which a flammable refrigerant flows, a fan 4, a detection sensor 6 that detects the leakage of the flammable refrigerant, and the leakage of the flammable refrigerant.
- a warning device buzzer 7
- a control device 5 for controlling the operation of the fan 4 and the notification device (7)
- the fan 4 to the control device 5 based on a manual operation.
- an operation device for inputting a stop command for the alarm device (7).
- the control device 5 activates the fan 4 and activates the alarm device (7) when the fan 4 is stopped.
- the stop command for the fan 4 by the operation device (11) is ignored, and the stop command for the alarm device (7) by the operation device (11) is allowed.
- the fan 4 When leakage of the flammable refrigerant is detected, the fan 4 is activated while the indoor unit 1 is stopped, and the fan 4 continues to operate while the indoor unit 1 is in operation. As a result, the air around the indoor unit 1 is agitated.
- the control device 5 ignores the stop command for the fan 4, so that the operation of the fan 4 is maintained. For this reason, it can prevent that the density
- the control device 5 allows a stop command for the alarm device (7) by the operating device (11), the alarm device (7) can be arbitrarily stopped.
- the stop command for the alarm device (7) is input by operating the operating device (11)
- the user recognizes that the refrigerant has leaked. Once reported, the user is urged to ventilate the room air, reducing the risk associated with refrigerant leakage. That is, even if the operation of the alarm device (7) is stopped by the operation of the operating device (11), the purpose of reporting the leakage of the refrigerant is achieved, and no malfunction occurs.
- the user can stop arbitrarily the alerting
- the flammable refrigerant includes a slightly flammable refrigerant.
- the alarm device (7) is a sound generator (7).
- the indoor unit 1 since the leakage of the refrigerant is notified by sound, the user can easily recognize the leakage of the refrigerant. In particular, it is possible to prevent the sound output from the sounding device from continuing for reporting and causing noise damage to the surroundings.
- the control device 5 stops the fan 4 after a predetermined time elapses after the leakage of the combustible refrigerant is detected.
- the operation of the fan 4 is maintained after the leakage of the refrigerant is detected.
- the operation time of the fan 4 becomes longer, air agitation proceeds, so that the concentration of the refrigerant staying at the low position is difficult to increase. That is, as the operation time of the fan 4 becomes longer, the risk associated with refrigerant leakage decreases.
- the risk associated with the refrigerant leakage is reduced to the extent corresponding to the predetermined time.
- the user can recognize that the risk associated with the leakage of the refrigerant has decreased to some extent due to the stop of the fan 4. Moreover, when the risk accompanying the leakage of the refrigerant is low, generation of noise and increase in power consumption due to continuing driving of the fan 4 can be suppressed.
- the indoor unit 1 is configured to be unable to stop after detecting the above-described reporting device (buzzer 7) as the first reporting device configured to be able to stop after detecting refrigerant leakage, and detecting the refrigerant leakage.
- the second alarm device (operation lamp 9) is provided.
- the indoor unit 1 since the leakage of the refrigerant is reported by sound generation and light emission, the user can easily recognize the leakage of the refrigerant. Further, it is possible for the user to arbitrarily stop the notification that has the possibility of causing noise damage to the surroundings, and it is possible to continue the notification by the light emission that is less likely to cause the influence on the surroundings.
- the indoor unit 1 according to the first embodiment includes a buzzer 7 and an operation lamp 9 as a reporting device, and is configured to be able to stop the operation of the buzzer 7.
- the indoor unit 1 according to the second embodiment includes a buzzer 7 and an operation lamp 9 as a reporting device, and is configured to stop not only the operation of the buzzer 7 but also the operation of the operation lamp 9. .
- common reference numerals are used for elements common to the first embodiment and the second embodiment, and descriptions of common elements are omitted.
- FIG. 5 is a flowchart showing a processing flow related to the notification of refrigerant leakage according to the second embodiment.
- the processing flow according to the second embodiment includes step S11 and step S12 in addition to the configuration of the processing flow according to the first embodiment.
- step S11 and step S12 that are not included in the processing flow according to the first embodiment will be described.
- Step S11 is executed after step S4 or when there is no buzzer stop signal in step S3.
- the control device 5 determines whether or not there is an operation stop signal. If there is an operation stop signal, step S12 is executed. If there is no operation stop signal, step S5 is executed without executing step S12. However, in step S12, the control device 5 ignores the stop command for the fan 4 as described above, and stops only the operation of the compressor and the operation lamp 9. Thereby, the report of the refrigerant leak by light output stops. Following step S12, step S5 is executed.
- the indoor unit 1 according to the second embodiment has the following operations and effects due to the following configuration. Hereinafter, only the configuration, operation, and effect unique to the second embodiment will be described.
- the alarm device is a sounding device (buzzer 7) and a light emitting device (operation lamp 9).
- the indoor unit 1 since the leakage of the refrigerant is reported by sound generation and light emission, the user can easily recognize the leakage of the refrigerant. In particular, it is possible to prevent the sound output from the sounding device from continuing for reporting and causing noise damage to the surroundings.
- the operation lamp 9 is used not only as a display device that displays the operation state of the indoor unit, but also as a light-emitting device that issues a refrigerant leak.
- a light emitting device that reports only the leakage of the refrigerant may be provided separately from the operation lamp 9.
- the casing is a floor-standing type, but it may be a casing type (ground bag type; Jibukuro type) in which at least a part is embedded in a recess provided on a wall surface close to the indoor floor.
- a casing type ground bag type; Jibukuro type
- the refrigerant since the flammable refrigerant has a property that it is heavier than air, the refrigerant does not diffuse and tends to accumulate on the floor. Even in such a situation, it is possible to effectively detect refrigerant leakage regardless of the aging of the detection sensor.
- the casing is a floor-standing type, but it may be a casing type (tenbukuro type) in which at least a part is embedded in a concave portion of a wall located slightly below the ceiling. Even in such a casing type, it is possible to effectively detect refrigerant leakage regardless of the deterioration of the detection sensor over time.
- the outlet of the casing is provided in the lower part of the casing, but it may be provided in the upper part of the casing in addition to the lower part of the casing.
- R32 is used as the flammable refrigerant, but other flammable refrigerants such as propane and a mixed refrigerant containing propane may be used.
- the detection sensor is arranged in the casing, but a hole penetrating the casing inside and outside the casing may be provided, and the detection sensor may be arranged in the hole.
- the operation device includes a buzzer stop button for stopping the buzzer and an operation stop button for stopping the fan and the operation lamp.
- the operating device may include three dedicated buttons corresponding to each of the buzzer, the fan, and the operation lamp, or may include one button corresponding to all of the buzzer, the fan, and the operation lamp. The correspondence between the operation device, the fan, and the alarm device is not limited.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
ケーシングと、
可燃性冷媒が流れる熱交換器と、
ファンと、
上記可燃性冷媒の漏洩を検知する検知センサと、
上記可燃性冷媒の漏洩を発報するための発報装置と、
上記ファンおよび上記発報装置の作動を制御する制御装置と、
手動の操作に基づいて上記制御装置に上記ファンおよび上記発報装置の停止指令を入力する操作装置と
を備えており、
上記制御装置は、上記検知センサにより上記可燃性冷媒の漏洩が検知されると、上記ファンが停止している場合は上記ファンを起動し、上記発報装置を起動し、上記操作装置による上記ファンの停止指令を無視し、上記操作装置による上記発報装置の停止指令を許容することを特徴とする。
上記発報装置は、発音装置である。
上記発報装置は、発音装置および発光装置である。
上記制御装置は、上記可燃性冷媒の漏洩が検知された後の所定時間経過後に、上記ファンを停止させる。
図1は、本発明の第1実施形態に係る室内機の前方からみた断面図である。図2は、第1実施形態に係る室内機の右側方からみた断面図である。図1と図2に示すように、この室内機1は、ケーシング2と、熱交換器3と、ファン4と、制御装置5と、検知センサ6と、ブザー7と、運転ランプ9と、操作パネル11とを備える。室内機1は、室内に配置される。室内機1は、図示しない室外機と接続されて、空気調和機を構成する。
次に、第2実施形態に係る室内機1を説明する。第1実施形態の室内機1は、発報装置としてブザー7および運転ランプ9を備え、ブザー7の作動を停止させることができるように構成されている。一方、第2実施形態に係る室内機1は、発報装置としてブザー7および運転ランプ9を備え、ブザー7の作動だけでなく運転ランプ9の作動も停止させることができるように構成されている。以下、第1実施形態と第2実施形態とで共通する要素については共通の参照符号を用いると共に、共通する要素に関する説明を省略している。
なお、本発明は上述の実施形態に限定されず、本発明の要旨を逸脱しない範囲で設計変更可能である。
2 ケーシング
3 熱交換器
4 ファン
5 制御装置
6 検知センサ
7 ブザー(発報装置)
9 運転ランプ(発報装置)
11 操作パネル(操作装置)
Claims (4)
- ケーシング(2)と、
可燃性冷媒が流れる熱交換器(3)と、
ファン(4)と、
上記可燃性冷媒の漏洩を検知する検知センサ(6)と、
上記可燃性冷媒の漏洩を発報するための発報装置(7)と、
上記ファン(4)および上記発報装置(7)の作動を制御する制御装置(5)と、
手動の操作に基づいて上記制御装置(5)に上記ファン(4)の停止指令および上記発報装置(7)の停止指令を入力する操作装置(11)と
を備えており、
上記制御装置(5)は、上記検知センサ(6)により上記可燃性冷媒の漏洩が検知されると、上記ファン(4)が停止している場合は上記ファン(4)を起動し、上記発報装置(7)を起動し、上記操作装置(11)による上記ファン(4)の停止指令を無視し、上記操作装置(11)による上記発報装置(7)の停止指令を許容することを特徴とする室内機。 - 請求項1に記載の室内機において、
上記発報装置(7)は、発音装置(7)である室内機。 - 請求項1に記載の室内機において、
上記発報装置(7、9)は、発音装置(7)および発光装置(9)である室内機。 - 請求項1から3のいずれか1つに記載の室内機において、
上記制御装置(5)は、上記可燃性冷媒の漏洩が検知された後の所定時間経過後に、上記ファン(4)を停止させる室内機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480061265.0A CN105705888B (zh) | 2013-11-12 | 2014-10-24 | 室内机 |
EP14862536.1A EP3070420A4 (en) | 2013-11-12 | 2014-10-24 | Indoor unit |
US15/031,800 US9625195B2 (en) | 2013-11-12 | 2014-10-24 | Indoor unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-234041 | 2013-11-12 | ||
JP2013234041A JP5812081B2 (ja) | 2013-11-12 | 2013-11-12 | 室内機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015072311A1 true WO2015072311A1 (ja) | 2015-05-21 |
Family
ID=53057251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/078328 WO2015072311A1 (ja) | 2013-11-12 | 2014-10-24 | 室内機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9625195B2 (ja) |
EP (1) | EP3070420A4 (ja) |
JP (1) | JP5812081B2 (ja) |
CN (1) | CN105705888B (ja) |
WO (1) | WO2015072311A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3150943A4 (en) * | 2015-07-17 | 2017-07-19 | Mitsubishi Electric Corporation | Indoor unit for air conditioner and air conditioner provided with indoor unit |
EP3276284A4 (en) * | 2015-03-26 | 2018-06-20 | Mitsubishi Electric Corporation | Indoor unit of air conditioner |
EP3460346A4 (en) * | 2016-05-17 | 2019-05-08 | Mitsubishi Electric Corporation | AIR CONDITIONER |
JP2021081139A (ja) * | 2019-11-20 | 2021-05-27 | パナソニックIpマネジメント株式会社 | 空調システム |
US11248816B2 (en) * | 2014-10-31 | 2022-02-15 | Daikin Industries, Ltd. | Air conditioner |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10119738B2 (en) | 2014-09-26 | 2018-11-06 | Waterfurnace International Inc. | Air conditioning system with vapor injection compressor |
WO2016157538A1 (ja) * | 2015-04-03 | 2016-10-06 | 三菱電機株式会社 | 冷凍サイクル装置 |
WO2017006462A1 (ja) * | 2015-07-08 | 2017-01-12 | 三菱電機株式会社 | 空気調和機 |
US10724766B2 (en) | 2015-12-21 | 2020-07-28 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
AU2016397074B2 (en) * | 2016-03-10 | 2019-09-26 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
WO2017187483A1 (ja) * | 2016-04-25 | 2017-11-02 | 三菱電機株式会社 | 室内機および空気調和装置 |
EP3450884B1 (en) * | 2016-04-27 | 2022-03-02 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
WO2017187618A1 (ja) * | 2016-04-28 | 2017-11-02 | 三菱電機株式会社 | 冷凍サイクル装置 |
JP6121075B1 (ja) * | 2016-05-17 | 2017-04-26 | 三菱電機株式会社 | 冷凍サイクル装置 |
JP6828401B2 (ja) * | 2016-12-02 | 2021-02-10 | 三菱電機株式会社 | 空気調和機 |
EP3572744B1 (en) | 2017-01-19 | 2022-06-22 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
JP6955311B2 (ja) * | 2017-03-22 | 2021-10-27 | 丸八空調工業株式会社 | 冷媒漏れ対処方法 |
JP6555293B2 (ja) * | 2017-03-31 | 2019-08-07 | ダイキン工業株式会社 | 冷凍装置の室内ユニット |
CN110462299B (zh) * | 2017-04-06 | 2022-08-09 | 开利公司 | 中至低全球变暖潜能值制冷剂泄漏检测器及其操作方法 |
CN110050159B (zh) * | 2017-11-16 | 2021-06-25 | 日立江森自控空调有限公司 | 空调机 |
US10514176B2 (en) | 2017-12-01 | 2019-12-24 | Johnson Controls Technology Company | Systems and methods for refrigerant leak management |
WO2019130383A1 (ja) * | 2017-12-25 | 2019-07-04 | 三菱電機株式会社 | 空気調和装置 |
JPWO2019150462A1 (ja) * | 2018-01-31 | 2020-02-06 | 日立ジョンソンコントロールズ空調株式会社 | 空気調和機 |
DE102018109604B4 (de) * | 2018-04-20 | 2019-10-31 | Rittal Gmbh & Co. Kg | Schaltschrankanordnung mit Sicherheitsfunktion sowie ein entsprechendes Verfahren |
US11927354B2 (en) * | 2018-07-06 | 2024-03-12 | Carrier Corporation | Method and system for flammable gas detection |
CN110822675B (zh) * | 2018-08-14 | 2021-05-18 | 奥克斯空调股份有限公司 | 一种空调冷媒泄漏的检测方法 |
CN110857803B (zh) * | 2018-08-23 | 2021-03-12 | 奥克斯空调股份有限公司 | 一种冷媒泄露的检测方法及具有其的空调器 |
CN110857802B (zh) * | 2018-08-23 | 2021-04-27 | 奥克斯空调股份有限公司 | 一种空调冷媒泄露的检测方法及空调器 |
US11592215B2 (en) | 2018-08-29 | 2023-02-28 | Waterfurnace International, Inc. | Integrated demand water heating using a capacity modulated heat pump with desuperheater |
WO2020044539A1 (ja) * | 2018-08-31 | 2020-03-05 | ダイキン工業株式会社 | 空気調和機 |
AU2018450374B2 (en) * | 2018-11-20 | 2022-03-17 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
JP7258576B2 (ja) * | 2019-01-25 | 2023-04-17 | 三菱重工サーマルシステムズ株式会社 | 空気調和機及び空気調和機の運転方法 |
US11686491B2 (en) | 2019-02-20 | 2023-06-27 | Johnson Controls Tyco IP Holdings LLP | Systems for refrigerant leak detection and management |
US11662109B2 (en) | 2019-06-05 | 2023-05-30 | Carrier Corporation | Enclosure for gas detector |
US11231198B2 (en) * | 2019-09-05 | 2022-01-25 | Trane International Inc. | Systems and methods for refrigerant leak detection in a climate control system |
JP6978696B2 (ja) * | 2019-09-30 | 2021-12-08 | ダイキン工業株式会社 | 空調換気システム |
US11408624B2 (en) * | 2019-10-15 | 2022-08-09 | Carrier Corporation | Refrigerant leak detection |
US11131471B1 (en) | 2020-06-08 | 2021-09-28 | Emerson Climate Technologies, Inc. | Refrigeration leak detection |
US11359846B2 (en) | 2020-07-06 | 2022-06-14 | Emerson Climate Technologies, Inc. | Refrigeration system leak detection |
US11125457B1 (en) | 2020-07-16 | 2021-09-21 | Emerson Climate Technologies, Inc. | Refrigerant leak sensor and mitigation device and methods |
US11885516B2 (en) | 2020-08-07 | 2024-01-30 | Copeland Lp | Refrigeration leak detection |
US11604019B2 (en) | 2020-08-13 | 2023-03-14 | Emerson Climate Technologies, Inc. | Systems and methods for leak detection and refrigerant charging |
US11754324B2 (en) | 2020-09-14 | 2023-09-12 | Copeland Lp | Refrigerant isolation using a reversing valve |
US11649997B2 (en) * | 2020-09-29 | 2023-05-16 | Emerson Climate Technologies, Inc. | Refrigerant leak sensor power control systems and methods |
US11609032B2 (en) | 2020-10-22 | 2023-03-21 | Emerson Climate Technologies, Inc. | Refrigerant leak sensor measurement adjustment systems and methods |
US11378293B1 (en) * | 2020-12-18 | 2022-07-05 | Uniflair S.P.A. | Access floor smart tile for refrigerant detection |
US11940188B2 (en) | 2021-03-23 | 2024-03-26 | Copeland Lp | Hybrid heat-pump system |
US12117191B2 (en) | 2022-06-24 | 2024-10-15 | Trane International Inc. | Climate control system with improved leak detector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000035267A (ja) | 1998-07-15 | 2000-02-02 | Sanyo Electric Co Ltd | リモートコントローラ |
JP2001241784A (ja) * | 2000-02-25 | 2001-09-07 | Mitsubishi Electric Corp | 可燃性冷媒を用いた冷蔵庫 |
JP2004077000A (ja) * | 2002-08-14 | 2004-03-11 | Toshiba Corp | 冷蔵庫 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380760A (en) * | 1980-02-21 | 1983-04-19 | General Electric Company | Smoke detector with delayed alarm after change to stand-by power |
JPH06207766A (ja) * | 1992-03-31 | 1994-07-26 | Unisia Jecs Corp | 空調装置 |
JP3237218B2 (ja) | 1992-08-05 | 2001-12-10 | 株式会社日立製作所 | 空気調和装置 |
US5731759A (en) * | 1995-08-07 | 1998-03-24 | Finucan; Timothy R. | Combination flashlight, smoke detector and emergency alarm |
JPH11164401A (ja) * | 1997-11-28 | 1999-06-18 | Yazaki Corp | 電気自動車用電池管理装置 |
JP3775920B2 (ja) | 1998-04-23 | 2006-05-17 | 松下電器産業株式会社 | 空気調和機 |
JP2000028212A (ja) | 1998-07-14 | 2000-01-28 | Matsushita Electric Ind Co Ltd | 冷凍サイクル装置 |
JP2000097505A (ja) | 1998-09-21 | 2000-04-04 | Toshiba Corp | 空気調和機 |
US6110038A (en) * | 1998-11-12 | 2000-08-29 | Stern; David A. | System for detecting and purging carbon monoxide |
JP4639451B2 (ja) | 2000-09-26 | 2011-02-23 | ダイキン工業株式会社 | 空気調和機 |
EP1321723B1 (en) * | 2000-09-26 | 2013-11-06 | Daikin Industries, Ltd. | Air conditioner |
JP4599699B2 (ja) | 2000-09-26 | 2010-12-15 | ダイキン工業株式会社 | 空気調和機 |
US6307478B1 (en) * | 2000-12-23 | 2001-10-23 | Nat Thompson | Multi-zone gas detection system |
EP1475588A4 (en) * | 2002-01-15 | 2008-04-09 | Toshiba Kk | COOLING DEVICE WITH WARNING DEVICE FOR WARNING OF COOLANT LEAKAGE |
CN100575825C (zh) * | 2002-02-08 | 2009-12-30 | 大金工业株式会社 | 使用致冷剂的机器或致冷剂管道的再利用可能性的判断方法 |
US7696891B2 (en) * | 2002-06-14 | 2010-04-13 | FireKiller Technologies, LLP | System and method for suppressing the spread of fire and various contaminants |
JP4165566B2 (ja) * | 2006-01-25 | 2008-10-15 | ダイキン工業株式会社 | 空気調和装置 |
JP5326488B2 (ja) * | 2008-02-29 | 2013-10-30 | ダイキン工業株式会社 | 空気調和装置 |
JP2010007994A (ja) * | 2008-06-27 | 2010-01-14 | Daikin Ind Ltd | 空気調和装置および空気調和装置の冷媒量判定方法 |
JP2012013348A (ja) * | 2010-07-02 | 2012-01-19 | Panasonic Corp | 空気調和機 |
US20120090383A1 (en) * | 2010-10-14 | 2012-04-19 | Audra Lopez | System and method for detecting a refrigerant leak and chemicals produced as a result of heating of the refrigerant |
CN102162658A (zh) * | 2011-05-26 | 2011-08-24 | 广东美的电器股份有限公司 | 空调器及其控制方法 |
CN202119010U (zh) * | 2011-05-26 | 2012-01-18 | 广东美的电器股份有限公司 | 空调器 |
CN102269447B (zh) * | 2011-07-14 | 2014-01-01 | 美的集团股份有限公司 | 一种使用可燃冷媒的空调器及其控制方法 |
-
2013
- 2013-11-12 JP JP2013234041A patent/JP5812081B2/ja active Active
-
2014
- 2014-10-24 CN CN201480061265.0A patent/CN105705888B/zh active Active
- 2014-10-24 EP EP14862536.1A patent/EP3070420A4/en not_active Withdrawn
- 2014-10-24 WO PCT/JP2014/078328 patent/WO2015072311A1/ja active Application Filing
- 2014-10-24 US US15/031,800 patent/US9625195B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000035267A (ja) | 1998-07-15 | 2000-02-02 | Sanyo Electric Co Ltd | リモートコントローラ |
JP2001241784A (ja) * | 2000-02-25 | 2001-09-07 | Mitsubishi Electric Corp | 可燃性冷媒を用いた冷蔵庫 |
JP2004077000A (ja) * | 2002-08-14 | 2004-03-11 | Toshiba Corp | 冷蔵庫 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3070420A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11248816B2 (en) * | 2014-10-31 | 2022-02-15 | Daikin Industries, Ltd. | Air conditioner |
EP3276284A4 (en) * | 2015-03-26 | 2018-06-20 | Mitsubishi Electric Corporation | Indoor unit of air conditioner |
EP3150943A4 (en) * | 2015-07-17 | 2017-07-19 | Mitsubishi Electric Corporation | Indoor unit for air conditioner and air conditioner provided with indoor unit |
JPWO2017013715A1 (ja) * | 2015-07-17 | 2018-02-01 | 三菱電機株式会社 | 空気調和装置 |
EP3460346A4 (en) * | 2016-05-17 | 2019-05-08 | Mitsubishi Electric Corporation | AIR CONDITIONER |
JP2021081139A (ja) * | 2019-11-20 | 2021-05-27 | パナソニックIpマネジメント株式会社 | 空調システム |
Also Published As
Publication number | Publication date |
---|---|
EP3070420A1 (en) | 2016-09-21 |
JP2015094515A (ja) | 2015-05-18 |
US9625195B2 (en) | 2017-04-18 |
US20160245566A1 (en) | 2016-08-25 |
EP3070420A4 (en) | 2017-10-18 |
CN105705888A (zh) | 2016-06-22 |
JP5812081B2 (ja) | 2015-11-11 |
CN105705888B (zh) | 2017-11-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5812081B2 (ja) | 室内機 | |
US11118821B2 (en) | Refrigeration cycle apparatus | |
JP4599699B2 (ja) | 空気調和機 | |
JP6408324B2 (ja) | 空気調和機の室内機 | |
WO2015072345A1 (ja) | 室内機 | |
JP6121075B1 (ja) | 冷凍サイクル装置 | |
JPWO2019138533A1 (ja) | 空気調和機 | |
JP2019052785A (ja) | 空気調和装置 | |
JP6929747B2 (ja) | 空気調和機 | |
JP4639451B2 (ja) | 空気調和機 | |
JP2016070594A (ja) | 空気調和装置 | |
CA2921709A1 (en) | Hazardous gas response system | |
WO2017187562A1 (ja) | 冷凍サイクル装置 | |
JP6640473B2 (ja) | 空気調和機、及び空気調和機の表示制御方法 | |
JP2011106697A (ja) | 空調室内機 | |
JP2015094524A (ja) | 室内機 | |
JP2001324191A (ja) | 空気調和装置 | |
JP2016166680A (ja) | 空気調和装置 | |
JP7522960B2 (ja) | 空気調和機 | |
KR20110002535A (ko) | 옥외용 디스플레이장치 | |
JP2015094526A (ja) | 室内機 | |
JP2008309449A (ja) | 空調機のドレン配管汚れ検出装置 | |
JP2008145062A (ja) | 空気調和装置の室内機 | |
JP2019060557A (ja) | 空気調和機 | |
JP2008234161A (ja) | 不完全燃焼検知機能付ガス漏れ警報器 |
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: 14862536 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014347992 Country of ref document: AU |
|
REEP | Request for entry into the european phase |
Ref document number: 2014862536 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15031800 Country of ref document: US Ref document number: 2014862536 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112016010128 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112016010128 Country of ref document: BR Kind code of ref document: A2 Effective date: 20160505 |