CN103097824A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN103097824A CN103097824A CN2011800436015A CN201180043601A CN103097824A CN 103097824 A CN103097824 A CN 103097824A CN 2011800436015 A CN2011800436015 A CN 2011800436015A CN 201180043601 A CN201180043601 A CN 201180043601A CN 103097824 A CN103097824 A CN 103097824A
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- Prior art keywords
- defrosting
- air conditioner
- temperature
- heat converter
- heating
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Classifications
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- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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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
- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
- 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
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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
- 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
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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
- F24F2110/00—Control inputs relating to air properties
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- 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
- F25B2400/24—Storage receiver heat
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- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
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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)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Provided is an air conditioner comprising an outdoor heat exchanger (14), an indoor heat exchanger (16), a four-way valve (8), and a compressor (6), and the outdoor heat exchanger (14) is defrosted using a refrigerant heated by the compressor (6). The air conditioner comprises: an indoor wall temperature detection means (46) for detecting the temperature of an indoor wall; and a defrosting means for defrosting when it is determined that defrosting is necessary, by selecting either a heating cycle or a cooling cycle on the basis of the indoor wall temperature detected by the indoor wall temperature detection means (46), and controlling the four-way valve (8) so that the selected cycle can be executed.
Description
Technical field
The present invention relates to have indoor heat converter, outdoor heat converter, cross valve and compressor, the air conditioner that the frost that is attached to outdoor heat converter is melted.
Background technology
In the prior art, when warming operation, when outdoor heat converter had frost, the air conditioner of heat pump type that defrosts to cooling cyclic switching cross valve from the heating circulation was known.In this Defrost mode, there is following shortcoming: although indoor fan stops, from indoor set, cold air being emitted gradually, so the user can lose the heating sense.In addition, indoor heat converter circulates by cooling and turns cold, and after reverting to the heating circulation from the cooling circulation, needs certain hour that heating capacity is given full play to.
Different therewith, in the situation that the air conditioner that outdoor heat converter with frost, keeps the pattern of heating circulation directly to defrost is known.In this Defrost mode, although can not lose the heating sense, exist the heat that outdoor heat converter is supplied with few, so defrosting needs time-consuming shortcoming.Particularly, when the temperature of outdoor air is low or the output of compressor when low, defrosting need to expend time in.As countermeasure, the air conditioner of record has bypass pipe in patent documentation 1, when it is used for carrying out the defrosting of outdoor heat converter, does not directly supply to outdoor heat converter via indoor heat converter from the part of the cold-producing medium of the high temperature of compressor output.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2009-145032 communique
Summary of the invention
The problem that invention will solve
As mentioned above, in the defrosting of outdoor heat converter, no matter carry out any of cooling circulation or heating circulation, also existent defects of existing advantage all.That is, if take heating capacity as preferential, the defrosting ability of outdoor heat converter reduces, and on the other hand, if take the defrosting ability as preferential, heating capacity reduces.Therefore, the defrosting of the warm outdoor heat converter of indoor confession is carried out in expectation with higher efficient.
At this, the present invention is in view of the problems of the prior art point, take the defrosting that realizes the more high efficiency indoor warm outdoor heat converter of confession as problem.
Be used for solving the method for problem
In order to reach above-mentioned purpose, according to a first aspect of the invention,
A kind of air conditioner can be provided, and it has outdoor heat converter, indoor heat converter, cross valve and compressor, utilizes the cold-producing medium thawing of being heated by compressor be attached to the frost of outdoor heat converter and defrost, and described air conditioner comprises:
The chamber interior walls temperature testing organization of the temperature of sensing chamber's inwall; With
Defrost mechanism, it is when being judged as the needs defrosting, based on the detected chamber interior walls temperature of chamber interior walls temperature testing organization, select the one party in heating circulation and cooling circulation, by being controlled, cross valve defrosts so that can carry out (execution) selected circulation.
The effect of invention
According to the present invention, in the situation that outdoor heat converter is with frost, based on the chamber interior walls temperature select to carry out the defrosting that circulates by heating and the defrosting that circulates by cooling in one party, can carry out expeditiously thus the warm up defrosting of outdoor heat converter of indoor confession.
Description of drawings
These modes of the present invention and feature are by relevant following record can understand for the preferred embodiment of additional accompanying drawing.
Fig. 1 means the figure of the structure of the air conditioner that embodiments of the present invention 1 relate to.
Fig. 2 means the schematic diagram that flows of heating circulation, the action when defrosting running and the cold-producing medium of the air conditioner of Fig. 1.
Fig. 3 means the schematic diagram that flows of cooling circulation, the action when defrosting running and the cold-producing medium of the air conditioner of Fig. 1.
Fig. 4 means the flow chart for the flow process of the defrosting running of the air conditioner that determines Fig. 1.
Fig. 5 means the schematic diagram of the structure of the air conditioner that embodiments of the present invention 2 relate to.
The specific embodiment
A first aspect of the present invention has outdoor heat converter, indoor heat converter, cross valve and compressor, and the cold-producing medium after utilization is heated by compressor melts the frost that is attached to outdoor heat converter and defrosts, and described air conditioner comprises:
The chamber interior walls temperature testing organization of the temperature of the wall in sensing chamber; And defrost mechanism, it is in the situation that be judged as and need to defrost, based on the detected chamber interior walls temperature of chamber interior walls temperature testing organization, select the one party in heating circulation and cooling circulation, by being controlled, cross valve defrosts so that can carry out selected circulation.
According to this structure, in the situation that outdoor heat converter is with frost, based on the chamber interior walls temperature select to carry out the defrosting that circulates by heating and the defrosting that circulates by cooling in one party, can carry out expeditiously thus the warm up defrosting of outdoor heat converter of indoor confession.
In a second aspect of the present invention, defrost mechanism is being judged as when needing defrosting, during higher than the temperature of regulation, loops defrosting by cooling in the chamber interior walls temperature, during lower than set point of temperature, loops defrosting by heating in the chamber interior walls temperature.Thus, the temperature in can the control room reduces, namely can not make the user to lose heating sense ground and carries out the defrosting of outdoor heat converter 14.
The air conditioner of a third aspect of the present invention also has the heating arrangements that when the defrosting that heats in circulating, outdoor heat converter is heated.Air conditioner defrosting ability when thus, heating the defrosting that circulates rises.
The air conditioner of a fourth aspect of the present invention also has and is looping when defrosting by heating, the used heat savings of compressor is supplied to the accumulation of heat mechanism of cold-producing medium.Thus, the defrosting ability of air conditioner rises and can effectively utilize the used heat of compressor.
The air conditioner of a fifth aspect of the present invention has also to indoor whether there is the people detection mechanism of detecting in someone, defrost mechanism is when people detection mechanism detects the people, loop defrosting by heating, when people detection mechanism does not detect the people, loop defrosting by cooling.Thus, can be further can not make the user lose the defrosting of carrying out outdoor heat converter 14 under the prerequisite of heating sense.
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, do not limit the present invention according to following embodiment.
Fig. 1 represents to have the structure of air conditioner of the refrigerating circulatory device of embodiments of the present invention 1, and air conditioner comprises by the interconnective off-premises station 2 of refrigerant piping and indoor set 4.
As shown in Figure 1, be provided with compressor 6, cross valve 8, filter 10, expansion valve 12 and outdoor heat converter 14 in the inside of off-premises station 2, be provided with indoor heat converter 16 in the inside of indoor set 4, these interconnect by refrigerant piping and consist of kind of refrigeration cycle.
More specifically, compressor 6 is connected with indoor heat converter via refrigerant piping 18 connections that are provided with cross valve 8, and indoor heat converter 16 and expansion valve 12 connect via the refrigerant piping 20 that is provided with filter 10.In addition, expansion valve 12 is connected with outdoor heat converter via refrigerant piping 22 connections, and outdoor heat converter 14 is connected with compressor via refrigerant piping 24 connections.
Pars intermedia at refrigerant piping 24 disposes cross valve 8, and the refrigerant piping 24 in the cold-producing medium suction side of compressor 6 is provided with the reservoir 26 for separating of liquid phase refrigerant and vapor phase refrigerant.In addition, compressor 6 and refrigerant piping 22 connect via refrigerant piping 28, are provided with the first magnetic valve 30 at refrigerant piping 28.
And then, be provided with heat storage tank 32 around compressor 6, be provided with heat-storage heat exchanger 34 in the inside of heat storage tank 32, and be filled with for the latent-heat storage material (for example ethylene glycol (ethylene glycol) aqueous solution) 36 that carries out heat exchange with heat-storage heat exchanger 34, consist of regenerative apparatus by heat storage tank 32, heat-storage heat exchanger 34, heat-storing material 36.The used heat of 36 pairs of compressors 6 of this heat-storing material carries out accumulation of heat.
In addition, refrigerant piping 20 is connected with heat-storage heat exchanger via refrigerant piping 38 connections, and heat-storage heat exchanger 34 is connected with refrigerant piping via refrigerant piping 40 connections, is provided with the second magnetic valve 42 at refrigerant piping 38.
Inside at indoor set 4, except indoor heat converter 16, also be provided with Air Blast fan (not shown), up and down blade (not shown) and left and right blade (not shown), 16 pairs of indoor heat converters by Air Blast fan suck the inside of indoor set 4 room airs, carry out heat exchange with cold-producing medium in the internal flow of indoor heat converter 16, will be extremely indoor by the Air blowing after heat exchanger heats when heating, on the other hand will be by the cooled Air blowing of heat exchange to indoor when cooling.The up and down blade changes at above-below direction the direction of the air that blows out from indoor set 4 as required, and the left and right blade changes at left and right directions the direction of the air that blows out from indoor set 4 as required.
And then, in the air conditioner of present embodiment, be provided with the outdoor heat converter temperature sensor 44 that the temperature in outdoor heat converter 14 is detected.Temperature in outdoor heat converter 14 and outdoor heat converter 14 the frost amount corresponding, so can temperature detected according to outdoor heat converter temperature sensor 44, detect the frost (white measuring) that is attached to outdoor heat converter 14.Outdoor heat converter temperature sensor 44 will the signal corresponding with detected temperature exports the control device of air conditioner to.
In addition, at indoor set 4, be provided with the chamber interior walls temperature sensor 46 that indoor wall temperature is detected, and the force-feeling sensor 48 that indoor middle people's existence is detected.Chamber interior walls temperature sensor 46 for the sensor that the temperature to the indoor wall that is provided with indoor set 4 detects, is for example infrared ray sensor.Chamber interior walls temperature sensor 46 will the signal corresponding with detected temperature exports the control device of air conditioner to.In addition, in the time can inferring accurately the chamber interior walls temperature according to the suction inlet temperature of indoor set 4, also can replace chamber interior walls temperature sensor 46 and use the temperature sensor that the suction inlet temperature is detected.
The sensor that force-feeling sensor 48 detects for the existence to indoor people (user) is such as being infrared ray sensor, ultrasonic sensor, illuminance transducer etc.When force-feeling sensor 48 detects existing of indoor people, signal is exported to the control device (not shown) of air conditioner.
The control device of air conditioner, reception is from the signal of above-mentioned outdoor heat converter temperature sensor 44, chamber interior walls temperature sensor 46 and force-feeling sensor's 48 outputs, based on received signal, compressor 6, cross valve 8, expansion valve 12, magnetic valve 30,42, Air Blast fan, up and down blade, left and right blade etc. are controlled, carried out various runnings.
Below defrosting of the present invention running is described.
The defrosting running is be used to the running that makes the frost thawing that is attached to outdoor heat converter 14, and the control device of air conditioner of the present invention carries out this defrosting by selected circulation and turns round according to the one party in condition selection heating circulation and cooling circulation.In other words, control device works as defrost mechanism.Below, selected circulation is turned round for the defrosting of heating circulation time is called " running of heating circulating defrosting ".Be called " running of cooling circulating defrosting " during on the other hand, with kind of refrigeration cycle.In addition, narrate for the back that is chosen in of circulation.
In addition, said in this manual " heating circulation " to be cold-producing medium move to indoor heat converter 16, circulation when namely heating from compressor 6 via cross valve 8, on the other hand, " cooling circulation " to be cold-producing medium move to compressor 6, circulation when being cooling from indoor heat converter 16 via cross valve 8.
At first, running describes with reference to Fig. 2 for the heating circulating defrosting.In figure, solid arrow represents that dotted arrow represents flowing about the cold-producing medium of defrosting about the flowing of the cold-producing medium of heating.In addition, the function for each inscape of air conditioner also describes.
Adhere to frost at outdoor heat converter 14, when the frost that adheres to increases (reach regulation when amount frost), the flowing resistance of outdoor heat converter 14 increases, air quantity reduces, temperature in outdoor heat converter 14 is reduced to the temperature (the required temperature that defrosts is hereinafter referred to as " defrosting temperature required ") of regulation.It is temperature required that outdoor heat converter temperature sensor 44 detects this defrosting, when the condition of carrying out (details are narrated in the back) of heating circulating defrosting running is set up, and heating circulating defrosting running beginning.
During heating circulating defrosting running beginning, by the control device of air conditioner, the first magnetic valve 30 and the second magnetic valve 42 are controlled as out, and cross valve 8 is controlled as the heating circulation side.Thus, the part from the vapor phase refrigerant of the outlet of compressor 6 output flow to refrigerant piping 18, the remaining refrigerant piping 28 that flow to.
In addition, for reference, at the heating circulation time that does not defrost, namely during common warming operation, the first magnetic valve 30 and the second magnetic valve 42 all are controlled as the pass.
Input to the vapor phase refrigerant of refrigerant piping 18 from compressor 6, arrive indoor heat converter 16 by cross valve 8 as shown in Figure 2, carry out heat exchange at this via indoor heat converter 16 and room air.By heat exchange, heat is pulled away and the cold-producing medium of condensation, by shunting between the indoor heat converter 16 in 20 cooled doses of pipe arrangements of refrigerant piping 20 and filter 10, flow to refrigerant piping 22,38.The cold-producing medium that flows in refrigerant piping 38 flows into heat-storage heat exchanger 34 by the second magnetic valve 42, evaporates from heat-storing material 36 heat absorptions, thus gas phase.Cold-producing medium after gas phase via refrigerant piping 40, converges with cold-producing medium by refrigerant piping 24, enters the suction inlet of compressor 6 via reservoir 26.
On the other hand, between the indoor heat converter 16 in refrigerant piping 20 and filter 10, shunting, condensed cold-producing medium, enter the filter 10 of expansion valve 12 by preventing foreign matter, enters expansion valve 12 and expand (decompression).The post-decompression cold-producing medium by expansion valve 12 arrives outdoor heat converter 14 by refrigerant piping 22, carries out heat exchange at this and extraneous air.Cold-producing medium after outdoor heat converter 14 and extraneous air heat exchange enters the suction inlet of compressor 6 by refrigerant piping 24, cross valve 8 and reservoir 26.
In addition, filter 10 is configured between splitter section refrigerant piping 20 and refrigerant piping 38 and expansion valve 12, even but be configured between the splitter section of indoor heat converter 16 in refrigerant piping 20 and refrigerant piping 38, can keep also preventing that foreign matter from entering the function of expansion valve 12.
But, there is the pressure loss at filter 10, in the former configuration, at refrigerant piping 20 and splitter section refrigerant piping 38, cold-producing medium becomes and easily flow to refrigerant piping 38 sides, increases by the internal circulating load of heat-storage heat exchanger 34 to the bypass piping system of refrigerant piping 40 from refrigerant piping 38.Consequently, even the increase in temperature at heat-storing material 36, in the very large situation of the heat-exchange capacity of heat-storage heat exchanger 34, the internal circulating load of heat-storage heat exchanger 34 is also more, so there is following advantage: the latter half of degree of superheat of heat-storage heat exchanger 34 increases and phenomenon that heat exchange can not be carried out becomes and is difficult to occur, the heat exchange amount of heat-storage heat exchanger 34 is given full play to, and the defrosting ability also can be given full play to.
In addition, just before entering heat-storage heat exchanger 26, converge from the liquid phase refrigerant of outdoor heat converter 14 and the vapor phase refrigerant from the high temperature of heat-storage heat exchanger 34, promoted thus the evaporation of liquid phase refrigerant, liquid phase refrigerant becomes and can not return to compressor 6 by reservoir 26, and the raising of the reliability of compressor 6 can realize.
On the other hand, the vapor phase refrigerant that enters refrigerant piping 28 from the output of the outlet of compressor 6, by refrigerant piping 28 and magnetic valve 30, converge with the cold-producing medium by refrigerant piping 22, outdoor heat converter 14 is heated, condensation and after liquid phase, enter the suction inlet of compressor 6 via cross valve 8 and reservoir 26 by refrigerant piping 24.
By the running of such heating circulating defrosting, guaranteed heating capacity, and adhering to of frost be the temperature of the outdoor heat converter 14 under freezing point when beginning because of this running, because the thawing of frost is risen.In addition, the running of heating circulating defrosting finishes when outdoor heat converter temperature sensor 44 detects higher than the temperature required and white temperature that can not exist of defrosting (for example 8 ℃).
Secondly, running describes with reference to Fig. 3 for the cooling circulating defrosting.
It is temperature required that outdoor heat converter temperature sensor 44 detects defrosting, when the condition of carrying out (details are narrated in the back) of cooling circulating defrosting running is set up, and cooling circulating defrosting running beginning.
During cooling circulating defrosting running beginning, by the control device of air conditioner, the first magnetic valve 30 and the second magnetic valve 42 are controlled as the pass, and cross valve 8 is controlled as the cooling circulation side.
Vapor phase refrigerant from the outlet of compressor 6 is exported enters outdoor heat converter 14 by refrigerant piping 18, cross valve 8, refrigerant piping 24.At this, vapor phase refrigerant is become popular and condensation by frosty-zone via outdoor heat converter 14.Frost is melted by this heat.
Be pulled away the liquid phase refrigerant of condensation because of the thawing heat of frost, enter refrigerant piping 22, expand by expansion valve 12, enter indoor heat converter 16 via filter 10, taken away via indoor heat converter 16 by room air in this heat.Heat is pulled away and cold-producing medium after gas phase, enters the suction inlet of compressor 6 by refrigerant piping 18, cross valve 8, coolant piping 24 and reservoir 26.
By the running of such cooling circulating defrosting, although there is no heating capacity, faster with the situation phase specific rate of heating circulating defrosting running, adhering to of frost when this running begins and be the temperature of the outdoor heat converter 14 under freezing point is because the thawing of frost is risen.In addition, the running of cooling circulating defrosting finishes when outdoor heat converter temperature sensor 44 detects higher than the temperature required and white temperature that can not exist of defrosting.
Therefore, the system of selection (condition) of heating circulating defrosting running and the running of cooling circulating defrosting describes with reference to Fig. 4 when outdoor heat converter 14 defrosting.
The control device of air conditioner according to flow chart shown in Figure 4, is selected the one party in the running of heating circulating defrosting and the running of cooling circulating defrosting.
At first, at step S10, whether control device is necessary to judge to the defrosting of outdoor heat converter 14.Particularly, as mentioned above, when the detected temperature of outdoor heat converter temperature sensor 44 is temperature required lower than defrosting, is judged to be and defrosts.When needs defrost, enter step S20.In the situation that in addition, return and get back to section start.
Then at step S20, whether control device is judged lower than the wall temperature of regulation the detected chamber interior walls temperature of chamber interior walls temperature sensor 46.
Particularly, if stop warming operation when the chamber interior walls temperature is low, the heat of the room air that thermal capacity is little is taken away in a large number by the large wall of thermal capacity, and perhaps heat moves than from wall to room air, and the temperature of room air sharply descends.Thus, the user loses the heating sense.
On the other hand, in the situation that the chamber interior walls temperature is high, even stop warming operation, the heat of room air can not taken away by wall in a large number yet, and perhaps heat moves to room air from wall, so the temperature of room air can sharply not reduce.Therefore, even stop heating, the user can not lose the heating sense yet.
So, during higher than the wall temperature of regulation, enter step S50 in the chamber interior walls temperature, carry out cooling circulating defrosting running.On the other hand, the chamber interior walls temperature lower than the regulation wall temperature the time, enter step S30.
In step S30, indoor whether someone exists control device judges by 48 couples of force-feeling sensors.
Particularly, the indoor people of having (user) when existing, lose the heating sense and the circulating defrosting running that need to heat in order not make the user, if but indoorly do not have the people can carry out the running of cooling circulating defrosting.
Therefore, when the indoor people of having exists, enter step S40, the circulating defrosting that heats running.On the other hand, when indoor nobody exists, enter step S50, carry out the running of cooling circulating defrosting.
In addition, heating circulating defrosting running and the running of cooling circulating defrosting surpass in the detected temperature of outdoor heat converter temperature sensor 44 and defrost temperature required and finish when reaching the temperature that frost can not exist.
According to present embodiment, in the situation that outdoor heat converter 14 is with frost, based on chamber interior walls temperature select to heat one party in circulating defrosting running or the running of cooling circulating defrosting, can carry out expeditiously thus the defrosting of the warm outdoor heat converter 14 of indoor confession.
In addition, the chamber interior walls temperature higher than the regulation temperature the time, the heat of room air can not walked by cornice, so loop defrosting by cooling.On the other hand, during lower than the temperature of regulation, the heat of room air can be walked by cornice, so loop defrosting by heating on one side and suppress the reduction of indoor temperature and defrost in the chamber interior walls temperature.Thus, the temperature in can the control room reduces, namely can not make the user to lose heating sense ground and carries out the defrosting of outdoor heat converter 14.
And then the regenerative apparatus that heat storage tank 32, heat-storage heat exchanger 34 and heat-storing material 36 consist of when the running of heating circulating defrosting, is supplied to cold-producing medium with the used heat savings of compressor 6.Thus, defrosting ability rises and can effectively utilize the used heat of compressor 6.
And then, at outdoor heat converter 14 during with frost, if indoorly do not have people (user) carry out the running of cooling circulating defrosting.Certainly can not make the user defrosting be completed at short notice with losing the heating sense.
Abovely describe the present invention as an example of above-mentioned embodiment example, but the present invention is not limited to this.
For example, in the situation that above-mentioned embodiment 1, air conditioner has the regenerative apparatus used heat that utilizes compressor, that be made of heat storage tank 32, heat-storage heat exchanger 34 and heat-storing material 36, but the present invention is not limited to the air conditioner with regenerative apparatus.
For example, can be thought of as air conditioner shown in Figure 5 (embodiments of the present invention 2).Air conditioner shown in Figure 5, remove heat storage tank 32, heat-storage heat exchanger 34, heat-storing material 36, refrigerant piping 38,40, the second magnetic valve 42 from air conditioner shown in Figure 1, be provided with the refrigerant piping 50 that the part with the refrigerant piping 24 between the part of the refrigerant piping 28 between the first electromagnetic sensor 30 and refrigerant piping 28,22 fluidic junction and cross valve 8 and reservoir 26 is connected.
In air conditioner shown in Figure 5, during the circulating defrosting that heats running, the first magnetic valve 30 is controlled as out and cross valve 8 is controlled as the heating circulation side.In addition, for reference, at the heating circulation time that does not defrost, namely during common warming operation, the first magnetic valve 30 is controlled as the pass.
Input to the vapor phase refrigerant of refrigerant piping 18 from compressor 6, arrive indoor heat converter 16 by cross valve 8, carry out heat exchange at this via indoor heat converter 16 and room air.By heat exchange, heat is pulled away and the cold-producing medium of the liquid phase of condensation, enters refrigerant piping 20, by filter 10, arrives expansion valve 12.Cold-producing medium by expansion valve 12 is depressurized arrives outdoor heat converter 14 by refrigerant piping 22.
On the other hand, the vapor phase refrigerant that enters refrigerant piping 28 from the output of the outlet of compressor 6, by refrigerant piping 28 and the first magnetic valve 30, a part moves to outdoor heat converter 14, the remaining refrigerant piping 50 that enters.Cold-producing medium to outdoor heat converter 14 moves converges and enters outdoor heat converter 14 with the cold-producing medium that flows in refrigerant piping 22, carries out heat exchange with extraneous air.Cold-producing medium after outdoor heat converter 14 and extraneous air heat exchange enters the suction inlet of compressor 6 by refrigerant piping 24, cross valve 8 and reservoir 26.
On the other hand, enter the cold-producing medium of refrigerant piping 50, converge with the cold-producing medium that flows in refrigerant piping 24, enter the suction inlet of compressor 6 by reservoir 26.
When carrying out the running of cooling circulating defrosting, the first magnetic valve 30 is controlled as the pass and cross valve 8 is controlled as the cooling circulation side.
Input to the vapor phase refrigerant of refrigerant piping 24 from compressor 6, enter outdoor heat converter 14 via cross valve 8, carry out heat exchange with extraneous air.Be pulled away and the cold-producing medium of condensation by the heat exchange heat, enter refrigerant piping 22, arrive expansion valve 12.Cold-producing medium by expansion valve 12 is depressurized enters indoor heat converter 16 by refrigerant piping 20, carries out heat exchange at this and room air.Cold-producing medium by heat exchange after gas phase enters refrigerant piping 18, enters afterwards the suction inlet of compressor 6 by cross valve 8, reservoir 26.
Even in air conditioner shown in Figure 5, also can high efficiency carry out the defrosting of the warm outdoor heat converter 14 of indoor confession.
In addition, for example in air conditioner shown in Figure 5, also can be provided with the heater (not shown) that outdoor heat converter 14 is heated.Air conditioner shown in Figure 5 is not for to have the structure of regenerative apparatus, so compare with air conditioner shown in Figure 1, the defrosting ability is not good, and defrosting time is long.Therefore, in order to make up the defrosting ability, be provided with the heater of outdoor heat converter 14 being supplied with complementaryly heat when the running of heating circulating defrosting.Thus, as shown in Figure 1, can have the defrosting ability equal with the air conditioner with regenerative apparatus.
The present invention has carried out sufficient record with reference to accompanying drawing to the content that preferred embodiment relates to, but for the people who is familiar with this technology, obviously can carry out various distortion, correction.Such distortion, correction only otherwise exceed the scope of the present invention that the scope of additional claim shows, just should be understood to be included in wherein.
Industrial utilizability
When the present invention is attached with frost at outdoor heat converter, based on the one party in chamber interior walls temperature selection heating circulating defrosting running and the running of cooling circulating defrosting, can carry out expeditiously thus the defrosting of the warm outdoor heat converter of indoor confession, so be not limited to the air conditioner that the such off-premises station of above-mentioned embodiment and indoor set consist of, also can be applicable to the one-piece type air conditioner that off-premises station and indoor set are integrated.
Symbol description
2 off-premises stations, 4 indoor sets, 6 compressors, 8 cross valves,
10 filters, 12 expansion valves, 14 outdoor heat converters,
16 indoor heat converters, 18 refrigerant pipings, 20 refrigerant pipings,
22 refrigerant pipings, 24 refrigerant pipings, 26 reservoirs,
28 refrigerant pipings, 30 first magnetic valves, 32 heat storage tanks,
34 heat-storage heat exchangers, 36 heat-storing materials, 38 refrigerant pipings,
40 refrigerant pipings, 42 second magnetic valves,
44 white amount detection machine structure (outdoor heat converter temperature sensor),
46 chamber interior walls temperature testing organizations (chamber interior walls temperature sensor),
48 people detection mechanisms (force-feeling sensor).
Claims (5)
1. air conditioner is characterized in that:
Have outdoor heat converter, indoor heat converter, cross valve and compressor, the cold-producing medium after utilization is heated by compressor melts the frost that is attached to outdoor heat converter and defrosts, and described air conditioner comprises:
The chamber interior walls temperature testing organization of the temperature of the wall in sensing chamber; With
Defrost mechanism, it is in the situation that be judged as and need to defrost, based on the detected chamber interior walls temperature of chamber interior walls temperature testing organization, select the one party in heating circulation and cooling circulation, by being controlled, cross valve defrosts so that can carry out selected circulation.
2. air conditioner as claimed in claim 1 is characterized in that:
Defrost mechanism needs defrosting in the situation that be judged as,
The chamber interior walls temperature higher than the regulation temperature the time, loop defrosting by cooling,
The chamber interior walls temperature lower than the regulation temperature the time, loop defrosting by heating.
3. air conditioner as claimed in claim 1 or 2 is characterized in that:
Also has the heating arrangements that when looping defrosting by heating, outdoor heat converter is heated.
4. air conditioner as claimed in claim 1 or 2 is characterized in that:
Also have and looping when defrosting by heating, the used heat savings of compressor are supplied to the accumulation of heat mechanism of cold-producing medium.
5. air conditioner as described in any one in claim 1 to 4 is characterized in that:
Have also to indoor whether there is the people detection mechanism of detecting in someone,
Defrost mechanism loops defrosting by heating when people detection mechanism detects the people,
When people detection mechanism does not detect the people, loop defrosting by cooling.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010202483A JP5210364B2 (en) | 2010-09-09 | 2010-09-09 | Air conditioner |
| JP2010-202483 | 2010-09-09 | ||
| PCT/JP2011/001292 WO2012032681A1 (en) | 2010-09-09 | 2011-03-04 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103097824A true CN103097824A (en) | 2013-05-08 |
Family
ID=45810295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800436015A Pending CN103097824A (en) | 2010-09-09 | 2011-03-04 | Air conditioner |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2615388B1 (en) |
| JP (1) | JP5210364B2 (en) |
| KR (1) | KR20130103712A (en) |
| CN (1) | CN103097824A (en) |
| BR (1) | BR112013005113A2 (en) |
| WO (1) | WO2012032681A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604169A (en) * | 2013-11-14 | 2014-02-26 | 广东美的制冷设备有限公司 | Heating and cooling air conditioner |
| CN104422086A (en) * | 2013-08-26 | 2015-03-18 | 松下电器产业株式会社 | Air conditioner |
| CN111102686A (en) * | 2019-12-13 | 2020-05-05 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method, computer readable storage medium and air conditioner |
| CN112041619A (en) * | 2018-04-11 | 2020-12-04 | 夏普株式会社 | Air conditioning system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014013121A (en) * | 2012-07-05 | 2014-01-23 | Panasonic Corp | Air conditioner |
| EP3093586B1 (en) * | 2013-10-29 | 2021-08-25 | Mitsubishi Electric Corporation | Air conditioning device |
| CN108603706B (en) * | 2016-02-05 | 2021-03-23 | 三菱电机株式会社 | Air conditioner |
| JP6804272B2 (en) * | 2016-11-24 | 2020-12-23 | シャープ株式会社 | Air conditioner control device |
| CN109959096B (en) * | 2018-08-01 | 2020-12-11 | 安徽省华腾农业科技有限公司经开区分公司 | Intelligent cold and warm type temperature control equipment |
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- 2011-03-04 KR KR1020137004435A patent/KR20130103712A/en not_active Application Discontinuation
- 2011-03-04 WO PCT/JP2011/001292 patent/WO2012032681A1/en active Application Filing
- 2011-03-04 EP EP11823167.9A patent/EP2615388B1/en not_active Not-in-force
- 2011-03-04 BR BR112013005113A patent/BR112013005113A2/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104422086A (en) * | 2013-08-26 | 2015-03-18 | 松下电器产业株式会社 | Air conditioner |
| CN104422086B (en) * | 2013-08-26 | 2018-11-16 | 松下电器产业株式会社 | Air conditioner |
| CN103604169A (en) * | 2013-11-14 | 2014-02-26 | 广东美的制冷设备有限公司 | Heating and cooling air conditioner |
| CN103604169B (en) * | 2013-11-14 | 2017-01-11 | 广东美的制冷设备有限公司 | Heating and cooling air conditioner |
| CN112041619A (en) * | 2018-04-11 | 2020-12-04 | 夏普株式会社 | Air conditioning system |
| CN111102686A (en) * | 2019-12-13 | 2020-05-05 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method, computer readable storage medium and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012032681A1 (en) | 2012-03-15 |
| EP2615388B1 (en) | 2017-10-18 |
| BR112013005113A2 (en) | 2016-04-26 |
| EP2615388A4 (en) | 2016-06-15 |
| JP2012057877A (en) | 2012-03-22 |
| JP5210364B2 (en) | 2013-06-12 |
| KR20130103712A (en) | 2013-09-24 |
| EP2615388A1 (en) | 2013-07-17 |
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Application publication date: 20130508 |