CN102971596A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN102971596A
CN102971596A CN2011800328716A CN201180032871A CN102971596A CN 102971596 A CN102971596 A CN 102971596A CN 2011800328716 A CN2011800328716 A CN 2011800328716A CN 201180032871 A CN201180032871 A CN 201180032871A CN 102971596 A CN102971596 A CN 102971596A
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CN
China
Prior art keywords
refrigrant leakage
air conditioner
unit
control module
power supply
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN2011800328716A
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Chinese (zh)
Other versions
CN102971596B (en
Inventor
藤高章
川边义和
丸本一彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Matsushita Electric Industrial Co Ltd
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Publication of CN102971596A publication Critical patent/CN102971596A/en
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Publication of CN102971596B publication Critical patent/CN102971596B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • 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
    • 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
    • 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
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/526—Indication arrangements, e.g. displays giving audible indications
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • 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
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Disclosed is an air conditioner provided with: a temperature distribution detection means (12) for detecting the temperature distribution of a room (1); a coolant leak detection means (13) for detecting coolant leaks; a ventilation control means (17c) for controlling a ventilation means (14); and an airflow direction control means (17d) for controlling the airflow direction of the ventilation means (14). When the coolant leak detection means (13) detects a coolant leak, the ventilation control means (17c) and the airflow direction control means (17d) disperse coolant in a direction different from that of a heat source device (4) or an occupant (3) etc. detected by the temperature distribution detection means (12), and safety is thereby improved.

Description

Air conditioner
Technical field
The present invention relates to improve the air conditioner of energy efficiency and security.
Background technology
Current, the cold-producing medium of air conditioner etc. uses HFC class fluorine carbon (freon) cold-producing medium that does not damage the ozone layer.But this HFC class cold-producing medium is because the global warming coefficient is very high, so in order to prevent warmization, also become the object that restriction is discharged.Therefore, inquire into the natural refrigerants such as the HFC class cold-producing medium that the global warming coefficient is low or hydrocarbon refrigerant as the cold-producing medium use of refrigerating air conditioning device.But, in this hydrocarbon refrigerant and the HFC class cold-producing medium, the cold-producing mediums such as R32 less to influenced by global warming, its character has combustibility.Thereby the primary side circulation of using combustible refrigerant and the secondary side circulation (for example with reference to patent documentation 1) of using salt solution (bittern, brine) are adopted in the danger when preventing refrigrant leakage.
The look-ahead technique document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 10-35266 communique
Summary of the invention
The problem that invention will solve
But above-mentioned existing air conditioner is by the primary side circulation of using combustible refrigerant and uses the secondary side circulation of salt solution (brine) to consist of, rather than considers the structure of energy efficiency.Especially exist the electricity input such as salt water circulating pump to increase the problem of energy efficiency reduction and so on.
So the object of the invention is, provides a kind of and can improve energy efficiency when using combustible refrigerant as cold-producing medium and the air conditioner of security.
Be used for solving the method for problem
In order to solve problem in the past, air conditioner of the present invention comprises that the Temperature Distribution detecting unit of the Temperature Distribution that detects the room, the refrigrant leakage detecting unit that detects refrigrant leakage, the air-supply control module of controlling blowing unit and control are from the wind direction control module of the wind direction of blowing unit, wherein, when the refrigrant leakage detecting unit detects refrigrant leakage, made the cold-producing medium diffusion of leakage by air-supply control module and/or wind direction control module.
Thus, when refrigrant leakage occurs, can detect occupant or heat power supply device by the Temperature Distribution detecting unit, make cold-producing medium to the direction diffusion different from occupant or heat power supply device.
The effect of invention
According to the present invention, can realize the air conditioner that energy efficiency is high, and can improve security.
Description of drawings
Fig. 1 be expression the first embodiment of the present invention air conditioner setting example figure is set.
Fig. 2 is the block diagram that the refrigrant leakage of the air conditioner of realization present embodiment is controlled.
Fig. 3 is the flow chart that the refrigrant leakage of the air conditioner of expression present embodiment detects action.
Fig. 4 is the block diagram that the refrigrant leakage of the air conditioner of realization the second embodiment of the present invention is controlled.
Fig. 5 is the flow chart that the refrigrant leakage of the air conditioner of expression present embodiment detects action.
Fig. 6 is the block diagram that the refrigrant leakage of the air conditioner of realization the 3rd embodiment of the present invention is controlled.
Fig. 7 is the flow chart that the refrigrant leakage of the air conditioner of expression present embodiment detects action.
Fig. 8 is the block diagram that the refrigrant leakage of the air conditioner of realization the 4th embodiment of the present invention is controlled.
Fig. 9 is the flow chart that the refrigrant leakage of the air conditioner of expression present embodiment detects action.
Figure 10 be embodiments of the present invention refrigerant mixed than and the figure of the relation of global warming coefficient.
The explanation of symbol
Room 1
3 occupants
4 heat power supply devices
10 air conditioners
11 refrigrant leakage alarm unit
11a alarm song generation unit
11b alarm light generation unit
12 Temperature Distribution detecting units
13 refrigrant leakage detecting units
16 communication units
17 control modules
The 17a decision circuit
The 17b output circuit
The 17c control module of blowing
17d wind direction control module
The 17e memory circuit
18 running switches
19 power-on circuits
19a main body power supply
The 19b battery
Circuit is confirmed in the 19c energising
19d power supply decision circuit
The 19e power-supply circuit
19f control module power supply starting unit
21 have the ventilation fan (other equipment) of communication unit
22 have the electric fan (other equipment) of communication unit
23 have the alarm device (other equipment) of communication unit
The specific embodiment
The first invention comprises the air-supply control module of the Temperature Distribution detecting unit of the Temperature Distribution that detects the room, the refrigrant leakage detecting unit that detects refrigrant leakage, blowing unit, control blowing unit and controls the wind direction control module of the wind direction of blowing unit, when the refrigrant leakage detecting unit detects refrigrant leakage, made the cold-producing medium diffusion of leakage by air-supply control module and/or wind direction control module.Thus, make cold-producing medium to the direction different from occupant diffusion by air conditioner, can prevent cold-producing medium be trapped in the occupant near.And, can prevent the delay of cold-producing medium or the decomposition of the cold-producing medium due to the heat power supply device.
The second invention, in the first invention, comprising: the refrigrant leakage alarm unit that gives the alarm when the refrigrant leakage detecting unit detects refrigrant leakage, refrigrant leakage alarm unit utilize sound and/or light to give the alarm.Thus, will unusually inform the occupant, thereby can prevent danger.
The 3rd invention in the first or second invention, comprises the communication unit that communicates with other equipment, controls the action of other equipment.Thus, make ventilation fan or electric fan action with communication unit, make the cold-producing medium of leakage to the direction diffusion different from occupant or heat power supply device, the heat power supply device with communication unit is stopped, can preventing the delay of cold-producing medium or the decomposition of the cold-producing medium due to the heat power supply device.And, can by with other the communication unit of equipment, give the alarm from the alarm device that connects etc., can will unusually inform the occupant, prevent danger.
The 4th invention, in the second or the 3rd invention, be provided with: the energising of the battery that is set up in parallel as the main body power supply of the power supply of refrigrant leakage detecting unit and refrigrant leakage alarm unit and air conditioner, the energising of confirming air conditioner is confirmed circuit and is carried out the power supply decision circuit of selection of the supply unit of refrigrant leakage detecting unit and refrigrant leakage alarm unit according to the signal of energising affirmation circuit.Thus, when detecting refrigrant leakage when shutting down or when having a power failure, can utilize battery to carry out power supply and supply with, give the alarm, dangerous preventing effectiveness is good.
The 5th invention, in any invention in first to fourth, be provided with control module, this control module is according to by the detected refrigerant concentration of refrigrant leakage detecting unit, the action of at least one in control refrigrant leakage alarm unit, air-supply control module, wind direction control module, the communication unit.Thus, even concentration is lower than in order to prevent refrigrant leakage is carried out error detection and during the concentration set point that arranges, also make refrigrant leakage alarm unit, air-supply control module, wind direction control module, communication unit action, thereby can the occupant prevent danger with unusually informing.
The 6th invention in any invention in first to the 5th, is used combustible refrigerant.Thus, when combustible refrigerant leaked, the direction diffusion to different from occupant or heat power supply device can prevent the delay of cold-producing medium or catching fire of the combustible refrigerant due to the heat power supply device.
The 7th invention, in the 6th invention, combustible refrigerant is HFC class cold-producing medium or unitary system cryogen or the mix refrigerant take them as main component with hydrogen fluoride cold-producing medium of the two keys of carbon.Thus, when combustible refrigerant leaked, the direction diffusion to different from occupant or heat power supply device can prevent the delay of cold-producing medium or catching fire of the combustible refrigerant due to the heat power supply device.And, can reduce the impact on global warming.
The 8th invention, in the 6th invention, combustible refrigerant is unitary system cryogen or the mix refrigerant take them as main component of hydrocarbon.Thus, when combustible refrigerant leaked, the direction diffusion to different from occupant or heat power supply device can prevent the delay of cold-producing medium or catching fire of the combustible refrigerant due to the heat power supply device.And, can reduce the impact on global warming.
The 9th invention in the 7th or the 8th invention, so that the global warming coefficient is more than 5, below 750, is preferably below 350, and more preferably the mode below 150 is used the unitary system cryogen or carried out two kinds of compositions mixing or three kinds of cold-producing mediums that composition mixes.Thus, when combustible refrigerant leaked, the direction diffusion to different from occupant or heat power supply device can prevent the delay of cold-producing medium or catching fire of the combustible refrigerant due to the heat power supply device.And, can contribute to preventing global warming.
The tenth invention, in any invention in first to the 9th, as refrigerator oil, use EVA with polyoxyalkylene glycol class (Polyoxyalkylene glycol), glymes (polyvinylether), poly-(oxidation) aklylene glycol or its monoether and polyvinylether, polyol ester class (polyol ester) and polycarbonate-based in arbitrarily oxygenatedchemicals as the artificial oil of main component, with alkyl benzene or α paraffin class artificial oil or the mineral oil as main component.Thus, can prevent catching fire of combustible refrigerant.And, can the raising of the reliability of air conditioner be contributed.
The following describes an embodiment of air conditioner of the present invention.But, and can't help present embodiment and limit the present invention.
Fig. 1 be the air conditioner of expression in the first embodiment of the present invention setting example figure is set.
Among Fig. 1, air conditioner 10 is arranged on the wall in room 1.Air conditioner 10 has the refrigeration cycle that is made of compressor, indoor heat converter, pressure reducer, outdoor heat converter etc.Enclose the fluorocarbons class cold-producing medium that the HFC class cold-producing medium such as R32, the R152a have as combustible refrigerant, R161 or HFO-1234yf, HFO-1234ze, HFO1243zf etc. have the two keys of carbon at refrigeration cycle.
In addition, be provided with at air conditioner 10: when from the refrigrant leakage of air conditioner 10 main bodys or refrigerant piping (without diagram), send the alarm song generation unit 11a of the alarm song of buzzer etc., the light that gives the alarm alarm light generation unit 11b, detect the Temperature Distribution detecting unit 12 of the Temperature Distribution in the room 1.
Temperature Distribution detecting unit 12 for example utilizes the sensor that is made of the thermoelectric sensing element that the high object of temperature is reacted and the Fresnel Lenses that enlarges the ultrared field range of detection, or utilize the infrared imaging sensor that detects the heat picture in the room 1 by arranging a plurality of thermoelectric sensing elements, detect the Temperature Distribution in the room 1.
Room 1 interior heat power supply device 4, ventilation fan 21 and the electric fan 22 that has occupant 3, stove or bogey etc.In addition, the outside in room 1 for example is provided with alarm device 23 in other room.
Fig. 2 is the block diagram that the refrigrant leakage of the air conditioner of realization present embodiment is controlled.
Air conditioner 10 also is provided with the refrigrant leakage detecting unit 13 that detects refrigrant leakage except Temperature Distribution detecting unit 12.In addition, air conditioner 10 is provided with: refrigrant leakage alarm unit 11, with blowing unit 14 to the room 1 of air air-supply, will the air supply direction from blowing unit 14 about, about change wind direction change blade driving motor 15, to the communication unit 16 of external output signal.Refrigrant leakage alarm unit 11 is made of alarm song generation unit 11a and/or alarm light generation unit 11b.Blowing unit 14 is made of the fan of cross flow fan (cross flow fan), turbofan (turbo fan) etc. and the motor of this fan of driving.
Air conditioner 10 has control module 17, this control module 17 will be from the signal of Temperature Distribution detecting unit 12 and refrigrant leakage detecting unit 13 as input, to refrigrant leakage alarm unit 11, blowing unit 14, wind direction change blade driving motor 15 and communication unit 16 output signals.
Control module 17 has according to the output signal of Temperature Distribution detecting unit 12 and refrigrant leakage detecting unit 13 judges the decision circuit 17a of refrigrant leakage, air-supply control module 17c and the wind direction control module 17d that moves according to the output circuit 17b of the signal output action signal of decision circuit 17a, according to the signal of output circuit 17b.In addition, control module 17 have the required information of judgement among the storage decision circuit 17a and judge after the memory circuit 17e of output information.That is, store concentration set point as judging required information at memory circuit 17e.Concentration set point in this storage has: the refrigerant concentration setting value of the low concentration of the judgement when being used for being judged to be the common refrigerant concentration setting value of refrigrant leakage and being used for detecting heat power supply device 4 by Temperature Distribution detecting unit 12.
Output information after the judgement of storing among the memory circuit 17e in addition, has: the Control the content among the output content in the refrigrant leakage alarm unit 11, air-supply control module 17c and the wind direction control module 17d, the output content in the communication unit 16.
Output circuit 17b is also to refrigrant leakage alarm unit 11 and communication unit 16 output signals.Air-supply control module 17c receives from the signal of output circuit 17b with from the signal of Temperature Distribution detecting unit 12, carry out blowing unit 14 running, stop the control with rotating speed.In addition, wind direction control module 17d receives from the signal of output circuit 17b with from the signal of Temperature Distribution detecting unit 12, makes 15 actions of wind direction change blade driving motor, up and down, about the direction of the wind that blows out from blowing unit 14 of change.
Wherein, running switch 18 is the switches that make the action of refrigrant leakage alarm function, but, also can be the switch with the running switch gearing that makes the action of common air conditioning function, can also be same switch with the running switch that makes common air conditioning function action.
On the other hand, heat power supply device 4 has reception from the communication unit 4a of the signal of communication unit 16 and the running control module 4b that shuts down when this communication unit 4a receives the refrigrant leakage signal.In addition, ventilation fan 21 has reception from the communication unit 21a of the signal of communication unit 16 and carry out the running control module 21b that refrigrant leakage turns round when this communication unit 21a receives the refrigrant leakage signal.In addition, electric fan 22 has reception from the communication unit 22a of the signal of communication unit 16 and carry out the running control module 22b that refrigrant leakage turns round when this communication unit 22a receives the refrigrant leakage signal.In addition, alarm device 23 has reception from the communication unit 23a of the signal of communication unit 16 and the alarm unit 23b that when this communication unit 23a receives the refrigrant leakage signal refrigrant leakage is carried out alarm.
Then explanation action.
Fig. 3 is the flow chart that the refrigrant leakage of the air conditioner of expression the first embodiment detects action.
In step 1, in case by the 18 indication running actions of running switch, then in step 2, utilize refrigrant leakage detecting unit 13 to begin to detect refrigrant leakage.Wherein, in running switch 18 and the switch gearing that makes the action of common air conditioning function or identical situation, begin drive compression machine, blowing unit 14 etc., the entry into service kind of refrigeration cycle.
Relatively set value from the output signal of refrigrant leakage detecting unit 13 and the refrigerant concentration that is stored among the memory circuit 17e, judge refrigrant leakage (step 3, step 4) by decision circuit 17a.In the judgement in the step 3, compare with the refrigerant concentration of low concentration setting value, in the judgement in the step 4, compare with the refrigerant concentration setting value of common concentration.
In step 3, when the detected value in the refrigrant leakage detecting unit 13 was lower than the low concentration setting value, being judged as did not have refrigrant leakage, and returns step 2, continued the detection of refrigrant leakage detecting unit 13.
In step 3, when the detected value in the refrigrant leakage detecting unit 13 is higher than the low concentration setting value, judge in step 4 whether it is more than the common concentration.
In step 4, more than the common concentration, then carry out the refrigrant leakage alarm by refrigrant leakage alarm unit 11 if the judgment is Yes, the action command signal is sent to other equipment (step 5).
In step 4, if the judgment is Yes less than common concentration, then measured the Temperature Distribution (step 6) in room 1 by Temperature Distribution detecting unit 12.
Based on the detection in the step 6, judge in decision circuit 17a whether occupant 3 exists or heat power supply device 4 whether in running (step 7).
In step 7, if decision circuit 17a detects occupant 3 existence or heat power supply device 4 and is turning round, then in step 5, carry out the refrigrant leakage alarm by refrigrant leakage alarm unit 11, the action command signal is sent to other equipment, and the output of the air-supply in the deciding step 8, wind direction.
Among the decision circuit 17a in step 7, also the position of occupant 3 position or the heat power supply device 4 that turning round is judged.Among the output circuit 17b in step 8, based on the result of determination among the decision circuit 17a, the mode to blow from the blow-off outlet of air conditioner 10 with the regulation air quantity in the direction different from occupant 3 or heat power supply device 4 determines output.
Based on the output that determines in the step 8, control air-supply control module 17c and wind direction control module 17d, according to the signal from air-supply control module 17c and wind direction control module 17d, blowing unit 14 and wind direction control module 15 action (step 9).
In step 7, if decision circuit 17a detect do not have occupant 3, not running of heat power supply device 4, then in step 5, carry out the refrigrant leakage alarm by refrigrant leakage alarm unit 11, the action command signal is sent to other equipment.
In carry out step 5 based on the refrigrant leakage alarm of refrigrant leakage alarm unit 11 time, 11a sounds the alarm from the alarm song generation unit, the LED flicker of alarm light generation unit 11b.Like this, when from air conditioner 10 or refrigerant piping refrigrant leakage being arranged, occupant 3 is carried out the alarm of the danger of refrigrant leakage.
Wherein, being judged as in the low concentration refrigrant leakage that is judged as occupant or thermal source in the common refrigrant leakage in step 4, the step 7 and the step 7 do not have in the low concentration of occupant or the thermal source refrigrant leakage, will be made as different output with LED flicker among the alarm light generation unit 11b from the alarm song of alarm song generation unit 11a respectively.
In addition, when in step 5, sending to other equipment, make the heat power supply device 4 of stove with communication unit 4a or bogey etc. shut down (the step 10) of perhaps cutting off the electricity supply by communication unit 16.
And then, when in step 5, sending to other equipment, make the electric fan 22 with communication unit 22a and 21 actions of the ventilation fan with communication unit 21a by communication unit 16, the cold-producing medium that makes leakage prevents delay or the decomposition of the cold-producing medium due to the heat power supply device 4 or the (step 11) of catching fire of combustible refrigerant of cold-producing medium to the direction diffusion different from occupant 3 or heat power supply device 4.
And then, when in step 5, sending to other equipment, by communication unit 16, give the alarm from the alarm device 23 of communication unit 23a with the room that is arranged at other, even occupant 3 is when the room different from the room 1 that sends refrigrant leakage, also will unusually inform the occupant 3 in other room, prevent danger (step 12).
According to present embodiment, can realize the air conditioner 10 of high energy efficiency, and when refrigrant leakage occurs, can detect occupant 3 or heat power supply device 4 by Temperature Distribution detecting unit 12, make cold-producing medium to the direction diffusion different from occupant 3 or heat power supply device 4, thereby prevent the delay of cold-producing medium or the decomposition of the cold-producing medium due to the heat power supply device 4.And, in the situation of combustible refrigerant, can prevent from catching fire because heat power supply device 4 makes combustible refrigerant.
Fig. 4 is the block diagram that the realization refrigrant leakage of the air conditioner of the second embodiment of the present invention is controlled.In the present embodiment, the structure mark identical symbol identical with the first embodiment, description thereof is omitted.
Be arranged in parallel battery 19b with main body power supply 19a on the air conditioner 10 shown in Figure 4.Power-on circuit 19 in the present embodiment is provided with: circuit 19c is confirmed in the energising of confirming the "on" position of air conditioner 10; Confirm the signal selection main body power supply 19a of circuit 19c or the power supply decision circuit 19d of battery 19b according to this energising; The power-supply circuit 19e that supplies with the power supply that utilizes the main body power supply 19a that selected by power supply decision circuit 19d or battery 19b.
Under the state that does not have the power supply 19a of supply subject, from battery 19b power-on circuit 19 or energising are confirmed circuit 19c supply capability.At this, there is not the state of the power supply 19a of supply subject to refer to, the state that air conditioner 10 is not connected with the socket of power supply with the city or power failure etc. are to the state of city's usefulness power supply supply capability.
By power-supply circuit 19e, battery 19b carries out electric power to refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17 and supplies with.
Wherein, the switch that carries out for the action interlock of the action that makes the refrigrant leakage alarm function and common air conditioning function of the running switch in the present embodiment 18 or the switch identical with the running switch that makes common air conditioning function action.
Then explanation action.
Fig. 5 is the flow chart that the refrigrant leakage of the air conditioner of expression the second embodiment detects action.In addition, to the action mark same steps as sequence number identical with the first embodiment, description thereof is omitted.
Energising confirms that circuit 19c always confirms the "on" position (step 21) of air conditioner 10.When in step 21, confirming "on" position, detect the supply capability of autonomous agent power supply 19a, detect the state that air conditioner 10 is not connected with the socket of power supply with the city or the state that does not have the electric power supply owing to the power failure city with power supply.
In the step 22, confirm that by energising circuit 19c judges whether the energising of autonomous agent power supply 19a.
In step 22, when being judged as the energising of autonomous agent power supply 19a, confirm the indication (step 23) in the running switch 18.
In step 23, when the 18 indication running of running switch, entry into service (step 1).That is, beginning drive compression machine, blowing unit 14 etc., entry into service kind of refrigeration cycle.In step 23, when running switch 18 is not indicated running, enter step 2, begin to detect refrigrant leakage at refrigrant leakage detecting unit 13.
In step 22, when being judged as the energising that does not come autonomous agent power supply 19a, undertaken supplying with (step 24) based on the electric power of battery 19b by power-supply circuit 19e.
From battery 19b refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 that is control module 17 being carried out electric power in step 24 supplies with.
When in step 24, carrying out supplying with from the electric power of battery 19b, beginning battery running (step 25).
When beginning battery running in step 25, in step 26, begin to detect refrigrant leakage in the refrigrant leakage detecting unit 13.
Relatively set value from the output signal of refrigrant leakage detecting unit 13 and the refrigerant concentration that is stored among the memory circuit 17e, judge refrigrant leakage (step 27) by decision circuit 17a.
In step 27, when the detected value in the refrigrant leakage detecting unit 13 was lower than concentration set point, being judged as did not have refrigrant leakage, returns step 26, continued to be detected by refrigrant leakage detecting unit 13.
In step 27, when the detected value in the refrigrant leakage detecting unit 13 is higher than concentration set point, carry out the refrigrant leakage alarm by refrigrant leakage alarm unit 11, the action command signal is sent to other equipment (step 5).
According to present embodiment, battery 19b and main body power supply 19a are arranged in parallel, so when not connecting the power supply of air conditioner 10 or when having a power failure, by operation battery 19b, make refrigrant leakage detecting unit 13, refrigrant leakage alarm unit 11, communication unit 16 and control module 17 actions, thereby the danger of refrigrant leakage can be informed occupant 3.
In addition, in the present embodiment, even when running switch 18 is not indicated running, also can carry out detection and the alarm of refrigrant leakage.
Especially, when coming the energising of autonomous agent power supply 19a, also can utilize battery 19b to carry out detection and the alarm of refrigrant leakage.
The air conditioner of the 3rd embodiment of the present invention then is described.
Fig. 6 is the block diagram that the realization refrigrant leakage of the air conditioner of the 3rd embodiment of the present invention is controlled, and Fig. 7 is the flow chart that the refrigrant leakage of the air conditioner of expression the 3rd embodiment detects action.Wherein, the function mark same-sign identical with the structure of the embodiment that has illustrated, description thereof is omitted.In addition, the action mark same steps as sequence number identical with the embodiment that has illustrated, description thereof is omitted.
As shown in Figure 6, in the present embodiment, has control module power supply starting unit 19f.In addition, in the present embodiment, not only to refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17, also Temperature Distribution detecting unit 12, blowing unit 14 and wind direction change blade driving motor 15 are carried out the electric power supply of battery 19b by power-supply circuit 19e.That is, by power-supply circuit 19e the electric power that air conditioner 10 carries out battery 19b is supplied with.
Then explanation action.
In step 22, when being judged as the energising of autonomous agent power supply 19a, confirm the indication (step 23) in the running switch 18.
In step 23, when the 18 indication running of running switch, entry into service (step 1).In step 31, when running switch 18 is not indicated running, enter step 2, refrigrant leakage detecting unit 13 begins to detect refrigrant leakage.
In addition, when in step 24, carrying out supplying with from the electric power of battery 19b, make actions such as control module 17 grades (step 25) by control module power supply starting unit 19f.
Wherein, in step 24, refrigrant leakage detecting unit 13 and control module 17 are carried out supplying with from the electric power of battery 19b.
In step 25, when making unit action such as 17 grades by control module power supply starting unit 19f, in step 26, begin to detect refrigrant leakage at refrigrant leakage detecting unit 13.
In step 27, when the detected value in the refrigrant leakage detecting unit 13 is higher than concentration set point, begin to carry out from battery 19b indoor set or air conditioner 10 to be carried out the battery running (step 28) that electric power is supplied with, enter step 4.
In the present embodiment, even when running switch 18 is not indicated running, also can carry out detection and the alarm of refrigrant leakage.
Especially, when not coming the energising of autonomous agent power supply 19a, at first only refrigrant leakage detecting unit 13 and control module 17 are carried out the electric power supply, carry out the detection of refrigrant leakage, so can not waste the electric power of limited battery 19b.That is, by refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17 being carried out the electric power supply from battery 19b, can turn round for a long time with limited electric power.
And, when detecting refrigrant leakage, also can carry out electric power to indoor set or air conditioner 10 and supply with, make cold-producing medium to the direction diffusion different from occupant 3 or heat power supply device 4 by blowing unit 14 or wind direction change blade driving motor 15.
The air conditioner of the 4th embodiment of the present invention then, is described.
Fig. 8 is the block diagram that the realization refrigrant leakage of the air conditioner of the 4th embodiment of the present invention is controlled, and Fig. 9 is the flow chart that the refrigrant leakage of the air conditioner of expression the 4th embodiment detects action.Wherein, the function mark same-sign identical with the structure of the embodiment that has illustrated, description thereof is omitted.In addition, the action mark same steps as sequence number identical with the embodiment that has illustrated, description thereof is omitted.
As shown in Figure 8, in the present embodiment, has control module power supply starting unit 19f.In addition, in the present embodiment, also refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17 are carried out the electric power supply of battery 19b by power-supply circuit 19e.
Then explanation action.
In step 22, when being judged as the energising of autonomous agent power supply 19a, confirm the indication (step 31) in the running switch 18.
In step 31, when the 18 indication running of running switch, entry into service (step 1).In step 31, when running switch 18 is not indicated running, make actions such as control module 17 grades (step 41) by control module power supply starting unit 19f.Wherein, refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17 being carried out the electric power of this moment supplies with.
In step 41, when making action such as control module 17 grades by control module power supply starting unit 19f, the refrigrant leakage detecting unit 13 in step 2 begins to detect refrigrant leakage.
Wherein, in step 24, refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17 are carried out supplying with from the electric power of battery 19b.
When in step 24, carrying out supplying with from the electric power of battery 19b, beginning battery running (step 25).
In the present embodiment, even when running switch 18 is not indicated running, also can carry out detection and the alarm of refrigrant leakage.
Especially, when coming the energising of autonomous agent power supply 19a, also can utilize battery 19b to carry out detection and the alarm of refrigrant leakage.
In addition, supply with by the electric power that refrigrant leakage alarm unit 11, refrigrant leakage detecting unit 13, communication unit 16 and control module 17 is come autonomous agent power supply 19a, can realize the minimizing of stand-by electric.
In addition, usually, among the memory circuit 17e, in order to prevent the error detection of refrigrant leakage, be provided with certain refrigerant concentration setting value.And when detecting this refrigerant concentration more than setting value, output circuit 17b makes refrigrant leakage alarm unit 11, air-supply control module 17c, wind direction control module 17d, communication unit 16 actions.But, a plurality of refrigerant concentration setting values also can be set in memory circuit 17e, according to detected concentration, the action of any in control refrigrant leakage alarm unit 11, air-supply control module 17c, wind direction control module 17d, the communication unit 16.For example, when detecting heat power supply device 4 by Temperature Distribution detecting unit 12, even be lower than common refrigerant concentration setting value by refrigrant leakage detecting unit 13 detected refrigerant concentrations, by making refrigrant leakage alarm unit 11, air-supply control module 17c, wind direction control module 17d, communication unit 16 actions, also can with unusually informing occupant 3, prevent danger.
In addition, alarm song generation unit 11a is not limited to the signal tones such as buzzer, if send the language in the memory that is stored in memory circuit 17e with the sound based on phonetic synthesis, also can access higher dangerous preventing effectiveness.In addition, also can from a plurality of language that prestore, freely select occupant 3 to think effective language.
In addition, as cold-producing medium, when using with hydrocarbon such as propane, iso-butanes as the cold-producing medium of main component, also can access same effect.In addition, also can be that HFC class cold-producing medium, HFO-1234yf, HFO-1234ze, the HFO-1243zf etc. such as R32, R152a, R161 are had the fluorocarbons class cold-producing medium of the two keys of carbon or the cold-producing medium that the hydrocarbon coolants such as propane, iso-butane mix.
For example, also can be take HFO-1234yf as basis R32 to be become more than 5 below 750 with global warming coefficient (GWP), be preferably more than 5 below 350, the mode below 150 is more preferably mixed respectively two kinds of compositions or is mixed the cold-producing medium of three kinds of compositions.
Figure 10 is that expression is based on the performance plot of the global warming coefficient of the mixed proportion of the cold-producing medium that two kinds of compositions of HFO-1234yf and R32 are mixed.For example thereby to make GWP be below 300 in order to mix HFO-1234yf and R32, mixes R32 with the ratio below the 51wt%.In addition, be below 150 in order to make GWP, mix R32 with the ratio below the 21wt%.
In addition, when cold-producing medium adopted the unitary system cryogen of HFO-1234yf, GWP was 4, shows fabulous value.But, than the cold-producing medium that forms with HFC class refrigerant mixed, thus since the large grade of specific volume refrigerating capacity descend, so air conditioner 10 is maximized.In other words, if use with the fluorocarbons class cold-producing medium that has between carbon carbon two keys as basis and mix the cold-producing medium that the HFC class cold-producing medium that do not have two keys forms, then compare with the unitary system cryogen with fluorocarbons class cold-producing medium of two keys between carbon carbon, can improve the characteristic of the regulation such as refrigerating capacity, be easier to use as cold-producing medium.Thereby the ratio of enclosing the HFC class cold-producing medium that contains the unitary system cryogen in the cold-producing medium is suitably selected to get final product according to the condition of the restriction of GWP etc.
In addition, in the compressor (not shown) of the kind of refrigeration cycle of formation air conditioner 10, as refrigerator oil, use with polyoxyalkylene glycol (Polyoxyalkylene glycol) class, polyvinylether (polyvinylether) class, the copolymer of poly-inferior (oxygen) alkyl glycol or its monoether and polyvinylether, polyol ester (polyol ester) class, and any number of oxygenatedchemicals in polycarbonate-based is the artificial oil of main component, artificial oil take alkyl benzene or α paraffin class as main component, or thereby mineral oil can contribute to the raising of the reliability of air conditioner 10.
Utilizability on the industry
According to the present invention, cheap and easily, the refrigrant leakage alarm unit is arranged on the air conditioner with Temperature Distribution measuring ability, thus can be loaded on the various devices such as dehumidifier with kind of refrigeration cycle of using cold-producing medium, refrigerator, and can avoid dangerous.

Claims (10)

1. an air conditioner is characterized in that, comprising:
Detect the Temperature Distribution detecting unit of the Temperature Distribution in room; Detect the refrigrant leakage detecting unit of refrigrant leakage; Blowing unit; Control the air-supply control module of described blowing unit; With the wind direction control module of the wind direction of controlling described blowing unit,
When described refrigrant leakage detecting unit detects refrigrant leakage, make the cold-producing medium diffusion of leakage by described air-supply control module and/or described wind direction control module.
2. air conditioner as claimed in claim 1 is characterized in that:
Have the refrigrant leakage alarm unit that gives the alarm when described refrigrant leakage detecting unit detects refrigrant leakage, described refrigrant leakage alarm unit utilizes sound and/or light to give the alarm.
3. air conditioner as claimed in claim 1 or 2 is characterized in that:
Have the communication unit that communicates with other equipment, control described other the action of equipment.
4. air conditioner as claimed in claim 2 or claim 3 is characterized in that:
Be provided with: the battery that is arranged in parallel as the main body power supply of the power supply of described refrigrant leakage detecting unit and described refrigrant leakage alarm unit and described air conditioner; Confirm the energising affirmation circuit of the energising of described air conditioner; With confirm that according to described energising the signal of circuit carries out the power supply decision circuit of selection of the supply unit of described refrigrant leakage detecting unit and described refrigrant leakage alarm unit.
5. such as each the described air conditioner in the claim 1 ~ 4, it is characterized in that:
Be provided with control module, this control module is according to by the detected refrigerant concentration of described refrigrant leakage detecting unit, controls in described refrigrant leakage alarm unit, described air-supply control module, described wind direction control module and the described communication unit action of at least one.
6. such as each the described air conditioner in the claim 1 ~ 5, it is characterized in that:
Use combustible refrigerant.
7. air conditioner as claimed in claim 6 is characterized in that:
Described combustible refrigerant is HFC class cold-producing medium or unitary system cryogen or the mix refrigerant take them as main component with hydrogen fluoride class cold-producing medium of the two keys of carbon.
8. air conditioner as claimed in claim 6 is characterized in that:
Described combustible refrigerant is unitary system cryogen or the mix refrigerant take them as main component of hydrocarbon.
9. such as claim 7 or 8 described air conditioners, it is characterized in that:
As described combustible refrigerant, so that the global warming coefficient is more than 5, below 750, be preferably below 350, more preferably the mode below 150 is used described unitary system cryogen or is carried out two kinds of compositions mixing or three kinds of cold-producing mediums that composition mixes.
10. such as each the described air conditioner in the claim 1 ~ 9, it is characterized in that:
As refrigerator oil, use copolymer with polyoxyalkylene glycol class, glymes, poly-inferior (oxygen) alkyl glycol or its monoether and polyvinylether, polyol ester class and polycarbonate-based in any number of oxygenatedchemicals as the artificial oil of main component, with alkyl benzene or α paraffin class artificial oil or the mineral oil as main component.
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