CN102348941B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN102348941B CN102348941B CN201080011824.9A CN201080011824A CN102348941B CN 102348941 B CN102348941 B CN 102348941B CN 201080011824 A CN201080011824 A CN 201080011824A CN 102348941 B CN102348941 B CN 102348941B
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- Prior art keywords
- refrigerant
- magnetic field
- cold
- aircondition
- producing medium
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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
- F25B13/00—Compression machines, plants or systems, with reversible 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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- F25B2400/01—Heaters
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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
- F25B2700/13—Mass flow of refrigerants
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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
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1933—Suction pressures
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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
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the compressor
Abstract
Disclosed is an air conditioner which can suppress excessive heating in a member heated via induction heating. The air conditioner (1) has a compressor (21), an exterior heat exchanger (23), an electric expansion valve (24), and an interior heat exchanger (41), and is provided with a coil (68) and a controller (11). The coil (68) generates a magnetic field for inductively heating an accumulator tube (F). The controller (11) ascertains the quantity of circulating coolant in a refrigeration cycle which includes the compressor (21), the interior heat exchanger (41), the electric expansion valve (24), and the exterior heat exchanger (23), and causes the coil (68) to generate a magnetic field when the quantity of circulating coolant increases.
Description
Technical field
The present invention relates to a kind of aircondition.
Background technology
Proposed the aircondition of the heating device for refrigerant with electromagnetic induction heating mode in the past.
Such as, in following patent document 1 (Japanese Patent Laid-Open 2007-255736 publication), propose a kind of aircondition, in this aircondition, in order to effectively carry out the heating of eddy-current heating to cold-producing medium, under the state of internal circulating load that ensure that cold-producing medium to a certain extent, carry out control to start eddy-current heating.
Summary of the invention
Invent technical problem to be solved
In the technology described in above-mentioned patent document 1 (Japanese Patent Laid-Open 2007-255736 publication), from carry out cold-producing medium effective heating viewpoint and guarantee internal circulating load, but cold-producing medium is not by direct eddy-current heating, but by accepting to be heated by the heat transfer of the generating component after the eddy-current heating such as magnetic.Therefore, even if when ensure that internal circulating load to a certain extent, also likely cannot guarantee to carry out the internal circulating load needed for eddy-current heating.
The present invention does in view of above-mentioned technical problem, and its technical problem is to provide a kind of aircondition that can suppress the component excessive heating of generating heat because of eddy-current heating.
The technical scheme that technical solution problem adopts
The aircondition of the first invention at least comprises compressing mechanism, refrigerant cooler, expansion mechanism and refrigerant heat device, also comprises magnetic field generation section, internal circulating load assurance portion and control part.Magnetic field generation section is in order to the refrigerant piping for making cold-producing medium circulate in compressing mechanism, refrigerant cooler, expansion mechanism and refrigerant heat device and/or carry out eddy-current heating with the component of the cold-producing medium thermo-contact of flowing in refrigerant piping and produce magnetic field.The circulating mass of refrigerant of internal circulating load assurance portion to the kind of refrigeration cycle at least comprising compressing mechanism, refrigerant cooler, expansion mechanism and refrigerant heat device is held.Control part carries out magnetic field when the circulating mass of refrigerant that internal circulating load assurance portion holds increases and exports control, make magnetic field generation section produce magnetic field, or the magnetic field that magnetic field generation section is produced increases, or the upper limit in the magnetic field that magnetic field generation section is produced improves.
In this aircondition, when the suction refrigerant amount of compressing mechanism is less, if the magnetic field intensity making magnetic field generation section produce becomes large and strengthen the degree of eddy-current heating, then may make the part excessive heating of the object becoming eddy-current heating.
To this, in this aircondition, be regulate magnetic field when circulating mass of refrigerant increases by producing magnetic field or making produced magnetic field increase, therefore, can suppress eddy-current heating part superheated.
The aircondition of the second invention is on the basis of the aircondition of the first invention, magnetic field generation section produce be used for the suction refrigerant piping of compressing mechanism suction side in refrigerant piping and/or with the magnetic field of carrying out eddy-current heating at the component sucking the cold-producing medium thermo-contact of flowing in refrigerant piping.
In this aircondition, the cold-producing medium making to be about to be inhaled into compressing mechanism instead of the cold-producing medium flowed in the refrigerant piping far apart from compressing mechanism heat rapidly.In addition, the cold-producing medium flowed in the suction side of compressing mechanism is in the comparatively large or superheat state of aridity, and therefore, compared with the situation changed with the cold-producing medium generation latent heat of the gas-liquid two-phase state flowed at more upstream side etc., easily carry out sensible heat change, temperature easily rises.
To this, in this aircondition, after circulating mass of refrigerant increases, carry out magnetic field export control, therefore, the excessive eddy-current heating under the less state of circulating mass of refrigerant can be prevented.By this, even if when to easily produce that temperature rises heated by the cold-producing medium of compressing mechanism suction side, also can suppress eddy-current heating part superheated.
The aircondition of the 3rd invention is that internal circulating load assurance portion at least determines according to the suction refrigerant density of the piston amount of pushing open of the regulation of compressing mechanism, the driving frequency of compressing mechanism and compressing mechanism on the basis of the aircondition of the first invention or the second invention.
In this aircondition, the magnetic field corresponding with the state of the cold-producing medium by compressing mechanism suction side can be carried out and export and control.
The aircondition of the 4th invention is on the basis of the aircondition of the 3rd invention, also comprises low pressure assurance portion and sucks refrigerant temperature assurance portion.The pressure of low pressure assurance portion to the cold-producing medium that the low-pressure section in kind of refrigeration cycle flows is held.Suck the suction refrigerant temperature of refrigerant temperature assurance portion to compressing mechanism to hold.The pressure that internal circulating load assurance portion uses low pressure assurance portion to hold and the temperature that suction refrigerant temperature assurance portion holds, obtain the suction refrigerant density of compressing mechanism.
In this aircondition, more correctly can hold circulating mass of refrigerant.
The aircondition of the 5th invention is on the basis of the aircondition of the 4th invention, suck refrigerant temperature assurance portion to detect the quantity of state by the cold-producing medium with upper/lower positions, this position is arranged in the suction side of the compressing mechanism of kind of refrigeration cycle, and ratio is by the part downstream of magnetic field generation section eddy-current heating.
In this aircondition, held by the quantity of state of the cold-producing medium flowed to the upstream side at the heating part generated heat because of eddy-current heating, can the value not being induction heated impact be held.
The aircondition of the 6th invention is on the basis of the aircondition of the 4th invention or the 5th invention, and when the suction cold-producing medium of compressing mechanism is in the superheat state of below dampness or the regulation degree of superheat, control part carries out magnetic field and exports and control.
In this aircondition, when the degree of superheat of the suction cold-producing medium of compressing mechanism is higher, the temperature of the part of generating heat because of eddy-current heating may significantly rise.
To this, in this aircondition, only when being in superheat state or the dampness of below the regulation degree of superheat, just carry out eddy-current heating.Therefore, even if the driving frequency of compressing mechanism uprises, refrigerant flow rates accelerates, as long as no the superheat state or the dampness that become below the regulation degree of superheat, just do not carry out magnetic field and export and control, thus can suppress excessive overheated further.
The aircondition of the 7th invention is on the basis of the first invention to the aircondition of the 6th invention, and the circulating mass of refrigerant held in internal circulating load assurance portion exceedes setting, control part carries out magnetic field and exports control.
In this aircondition, under the state that circulating mass of refrigerant exceedes setting, even if carry out magnetic field output control, eddy-current heating part is generated heat, also can utilize and suppress heating by a large amount of cold-producing mediums of surrounding.By this, the excessive heating of eddy-current heating part can reliably be suppressed.
Invention effect
In the aircondition of the first invention, can suppress eddy-current heating part superheated.
In the aircondition of the second invention, even if when to easily produce that temperature rises heated by the cold-producing medium of compressing mechanism suction side, also can suppress eddy-current heating part superheated.
In the aircondition of the 3rd invention, the magnetic field corresponding with the state of the cold-producing medium by compressing mechanism suction side can be carried out and export and control.
In the aircondition of the 4th invention, more correctly can hold circulating mass of refrigerant.
In the aircondition of the 5th invention, the value not being induction heated impact can be held.
In the aircondition of the 6th invention, excessive heating can be suppressed further.
In the aircondition of the 7th invention, reliably can suppress the excessive heating of eddy-current heating part.
Accompanying drawing explanation
Fig. 1 is the refrigerant loop figure of the aircondition of an embodiment of the present invention.
Fig. 2 is the stereoscopic figure of electromagnetic induction heating unit.
Fig. 3 represents the stereoscopic figure having pulled down the state after screening cover from electromagnetic induction heating unit.
Fig. 4 is the stereoscopic figure of electromagnetic induction thermistor.
Fig. 5 is the stereoscopic figure of fuse.
Fig. 6 is the schematic sectional view of the installment state representing electromagnetic induction thermistor and fuse.
Fig. 7 is the cross section structure figure of electromagnetic induction heating unit.
Fig. 8 is the figure representing the flow process that moist protection eddy-current heating controls.
Fig. 9 is the figure of the flow process representing abnormal overheated inhibitory control.
Figure 10 is the key diagram of the refrigerant piping of another embodiment (H).
Figure 11 is the key diagram of the refrigerant piping of another embodiment (I).
Figure 12 is the figure of the configuration of the ferrite housing representing another embodiment (J).
Detailed description of the invention
Below, with reference to accompanying drawing being described for the aircondition 1 with electromagnetic induction heating unit 6 of an embodiment of the present invention.
(the first embodiment)
<1-1> aircondition 1
In FIG, the refrigerant loop figure of the refrigerant loop 10 representing aircondition 1 is shown.
In aircondition 1, as heat source side device off-premises station 2 with as utilizing the indoor set 4 of side device to be connected by refrigerant piping, to be configured the air conditioning in the space utilizing side device, aircondition 1 comprises compressor 21, four-way switching valve 22, outdoor heat converter 23, electric expansion valve 24, storage tank 25, outdoor fan 26, indoor heat converter 41, indoor fan 42, hot gas bypass valve 27, capillary 28 and electromagnetic induction heating unit 6 etc.
Compressor 21, four-way switching valve 22, outdoor heat converter 23, electric expansion valve 24, storage tank 25, outdoor fan 26, hot gas bypass valve 27, capillary 28 and electromagnetic induction heating unit 6 are contained in off-premises station 2.Indoor heat converter 41 and indoor fan 42 are contained in indoor set 4.
Refrigerant loop 10 has bleed pipe A, indoor flue B, indoor liquid line C, outside liquid line D, outside flue E, accumulator F, suction line G and hot gas bypass circuit H.There is the cold-producing medium of a large amount of gaseous state to flow through in indoor flue B and outside flue E, but the cold-producing medium flow through is not defined in gas refrigerant.There is the cold-producing medium of a large amount of liquid condition to flow through in indoor liquid line C and outside liquid line D, but the cold-producing medium flow through is not defined in liquid refrigerant.
Compressor 21 is connected with four-way switching valve 22 by bleed pipe A.Bleed pipe A is provided with ejection temperature sensor 29d, and the temperature of this ejection temperature sensor 29d to the cold-producing medium flow through detects.Electric current supply portion 21e supplies electric current to compressor 21.The supply of electrical energy of compressor electric power test section 29f to this electric current supply portion 21e detects.The driving rotating speed of rotating speed assurance portion 29r to the piston of compressor 21 detects.Four-way switching valve 22 is connected with indoor heat converter 41 by indoor flue B.Be provided with the first pressure sensor 29a in the midway of this indoor flue B, the pressure of this first pressure sensor 29a to the cold-producing medium flow through detects.Indoor heat converter 41 is connected with electric expansion valve 24 by indoor liquid line C.Electric expansion valve 24 is connected with outdoor heat converter 23 by outside liquid line D.Outdoor heat converter 23 is connected with four-way switching valve 22 by outside flue E.Be provided with the second pressure sensor 29g in the midway of this outside flue E, the pressure of this second pressure sensor 29g to the cold-producing medium flow through detects.
Four-way switching valve 22 is connected with storage tank 25 by accumulator F, extends under the state that arranges of off-premises station 2 along vertical.In the local of accumulator F, electromagnetic induction heating unit 6 is installed.Being at least made up of magnetic tube F2 by the heating part that aftermentioned coil 68 covers surrounding in accumulator F, this magnetic tube F2 is set as surrounding's covering of copper pipe F1 inner side being had flow of refrigerant.This magnetic tube F2 is made up of SUS (Stainless Used Steel: stainless steel) 430.This SUS430 is ferromagnetic material, when placed in a magnetic field, can produce vortex flow, and generates heat because of the Joule heat of self-resistance generation.Form in the pipe arrangement of refrigerant loop 10, the part except magnetic tube F2 is all made up of copper pipe.By carrying out electromagnetic induction heating like this, electromagnetic induction can be utilized to heat accumulator F, thus can the cold-producing medium be drawn in compressor 21 via storage tank 25 be heated.By this, the heating capacity of aircondition 1 can be improved.In addition, such as, when heating running and starting, though when compressor 21 not fully heating, scarce capacity when also making up startup by the rapid heating of electromagnetic induction heating unit 6.In addition, four-way switching valve 22 is being switched to the state of cooling operation, when to carry out the defrosting of the frost removing being attached to outdoor heat converter 23 grade to operate, by making electromagnetic induction heating unit 6 promptly heat accumulator F, compressor 21 can will be compressed as object by the cold-producing medium heated rapidly.Therefore, the temperature of the hot gas sprayed from compressor 21 can be improved rapidly.By this, can shorten by defrosting running frost is thawed the required time.By this, though when heat in running need in time to carry out defrosting running, also can get back to as early as possible and heat running, thus the comfortableness of user can be improved.
This accumulator F is provided with inlet temperature sensor 19, and the temperature of this inlet temperature sensor 19 to the cold-producing medium flowed between electromagnetic induction heating unit 6 and four-way switching valve 22 detects.This inlet temperature sensor 19 carries out the state heating running in kind of refrigeration cycle under, the temperature of cold-producing medium before carrying out heating and cooling agent to the eddy-current heating by electromagnetic induction heating unit 6, that flow in the downstream of electromagnetic induction heating unit 6 detects.
The suction side of storage tank 25 with compressor 21 is connected by suction line G.
The branch point A1 being located at bleed pipe A midway is connected with the branch point D1 being located at outside liquid line D midway by hot gas bypass circuit H.The hot gas bypass valve 27 that can switch to the state allowing cold-producing medium to flow through and the state not allowing cold-producing medium to flow through is configured with in the midway of hot gas bypass circuit H.Hot gas bypass circuit H is provided with capillary 28 between hot gas bypass valve 27 and branch point D1, and this capillary 28 makes the pressure of the cold-producing medium flow through reduce.Because this capillary 28 can make the pressure of cold-producing medium make the pressure after refrigerant pressure reduction close to utilizing electric expansion valve 24 when heating running, therefore, the refrigerant pressure of the outside liquid line D caused because hot gas supplies towards outside liquid line D via hot gas bypass circuit H can be suppressed to rise.
Four-way switching valve 22 can switch cooling operation circulation and heat operation cycle.In FIG, represent the connection status of carrying out when heating running with solid line, be represented by dotted lines connection status when carrying out cooling operation.When heating running, indoor heat converter 41 works as the cooler of cold-producing medium, and outdoor heat converter 23 works as the heater of cold-producing medium.When cooling operation, outdoor heat converter 23 works as the cooler of cold-producing medium, and indoor heat converter 41 works as the heater of cold-producing medium.
One end of outdoor heat converter 23 is connected with the end of the flue E side, outside of outdoor heat converter 23, and the other end is connected with the end of the liquid line D side, outside of outdoor heat converter 23.In addition, be provided with outdoor heat exchange temperature sensor 29c at outdoor heat converter 23, the temperature of this outdoor heat exchange temperature sensor 29c to the cold-producing medium of flowing in aircondition 1 detects.In addition, relative to outdoor heat converter 23, be provided with outdoor temperature sensor 29b in airflow direction downstream, the temperature of this outdoor temperature sensor 29b to outdoor detects.
In indoor set 4, be provided with indoor temperature transmitter 43, the temperature of this indoor temperature transmitter 43 to indoor detects.In addition, be provided with Indoor Thermal exchange temperature sensor 44 at indoor heat converter 41, the refrigerant temperature of this Indoor Thermal exchange temperature sensor 44 to the liquid line C side, indoor being connected with electric expansion valve 24 detects.
By order wire 11a, the outdoor control part 12 that controls the equipment be configured in off-premises station 2 is connected with the room control unit 13 controlled the equipment be configured in indoor set 4 and forms control part 11.This control part 11 carries out the various controls of aircondition 1 as object.
In addition, outdoor control part 12 is provided with timer 95, this timer 95 counts the elapsed time when carrying out various control.
Control part 11 is connected with the controller 90 that the setting for receiving from user inputs.
<1-2> electromagnetic induction heating unit 6
In fig. 2, the schematic isometric being installed on the electromagnetic induction heating unit 6 of accumulator F is represented.In figure 3, the stereoscopic figure pulling down the state after screening cover 75 from electromagnetic induction heating unit 6 is represented.In the diagram, the schematic isometric of electromagnetic induction thermistor 14 is represented.In Figure 5, the schematic isometric of fuse 15 is represented.In figure 6, the sectional view of the state that electromagnetic induction thermistor 14 and fuse 15 are installed towards accumulator F is represented.In the figure 7, the sectional view being installed on the electromagnetic induction heating unit 6 of accumulator F is represented.
Electromagnetic induction heating unit 6 is configured to, from the heating part radial outside covering accumulator F and magnetic tube F2, by electromagnetic induction heating, magnetic tube F2 be generated heat.The heating part of this accumulator F adopts the double-sleeve structure with the copper pipe F1 of inner side and the magnetic tube F2 in outside.
Electromagnetic induction heating unit 6 comprises the first hex nut 61, second hex nut 66, first bobbin lid 63, second bobbin lid 64, bobbin main body 65, first ferrite housing 71, second ferrite housing 72, the 3rd ferrite housing 73, the 4th ferrite housing 74, first ferrite 98, second ferrite 99, coil 68, screening cover 75, electromagnetic induction thermistor 14 and fuse 15 etc.
First hex nut 61 and the second hex nut 66 are resinous, use not shown C type ring, and electromagnetic induction heating unit 6 is stablized with the stationary state of accumulator F.First bobbin lid 63 and the second bobbin lid 64 are resinous, are covered by accumulator F respectively at upper end position and lower end position from radial outside.This first bobbin lid 63 and the second bobbin lid 64 have the screw hole for four screws 69 being made aftermentioned first ferrite housing the 71 ~ four ferrite housing 74 screw togather by screw 69.In addition, the second bobbin lid 64 has electromagnetic induction thermistor insertion opening 64f, and this electromagnetic induction thermistor insertion opening 64f is used for inserting for thermistor 14 and being installed on the outer surface of magnetic tube F2.In addition, the second bobbin lid 64 has fuse insertion opening 64e, and this fuse insertion opening 64e is used for inserting for fuse 15 and being installed on the outer surface of magnetic tube F2.As shown in Figure 4, electromagnetic induction thermistor 14 has electromagnetic induction thermistor test section 14a, outer lateral process 14b, side extending projection 14c and the testing result of electromagnetic induction thermistor test section 14a is passed to the electromagnetic induction thermistor distribution 14d of control part 11 as signal.Electromagnetic induction thermistor test section 14a has along the such shape of the curved shape of the outer surface of accumulator F, the tangible contact area of tool.As shown in Figure 5, fuse 15 has fuse test section 15a, asymmetrical shape 15b and the testing result of fuse test section 15a is passed to the fuse distribution 15d of control part 11 as signal.Receive expression from fuse 15 and detect that the control part 11 of the information of the temperature exceeding regulation limit temperature carries out the control that the electric power supply towards coil 68 is stopped, to avoid the fire damage of equipment.Bobbin main body 65 is resinous, is wound with coil 68.Coil 68 in the outside of bobbin main body 65 using the bearing of trend of accumulator F as over-end winding curl.Coil 68 is connected with not shown control printed base plate 18, accepts the supply of high frequency electric.The output of control printed base plate is controlled by control part 11.As shown in Figure 6, under the state engaged with the second bobbin lid 64 in bobbin main body 65, electromagnetic induction thermistor 14 and fuse 15 are installed.At this, under the installment state of electromagnetic induction thermistor 14, owing to being pressed by the radially inner side of leaf spring 16 towards magnetic tube F2, the good face contact state between this electromagnetic induction thermistor 14 and outer surface of magnetic tube F2 therefore can be maintained.In addition, the installment state of fuse 15 is also identical, owing to being pressed by the radially inner side of leaf spring 17 towards magnetic tube F2, therefore can maintain the good face contact state between this fuse 15 and outer surface of magnetic tube F2.Like this, owing to keeping well by electromagnetic induction thermistor 14 and the close property between fuse 15 and the outer surface of accumulator F, thus can improve response, and promptly can detect the variations in temperature sharply caused because of electromagnetic induction heating.First bobbin lid 63 and the second bobbin lid 64 are clamped from the bearing of trend of accumulator F by the first ferrite housing 71, and are screwed togather fixing by screw 69.First ferrite housing the 71 ~ four ferrite housing 74 accommodates the first ferrite 98 and the second ferrite 99 be made up of the higher material of permeability and ferrite.As shown in the accumulator F of Fig. 7 and the sectional view of electromagnetic induction heating unit 6, the first ferrite 98 and the second ferrite 99, by surrounding the magnetic field that produced by coil 68 and forming the passage of magnetic flux, not easily spill towards the outside to make magnetic field.Screening cover 75 is configured at the most peripheral part of electromagnetic induction heating unit 6, assembles to make the magnetic flux only cannot assembled completely by the first ferrite 98 and the second ferrite 99.The place that leakage field earthing oneself determines to produce magnetic flux can be produced hardly in the outside of this screening cover 75.
<1-3> electromagnetic induction heating controls
Above-mentioned electromagnetic induction heating unit 6 carries out following control: when carrying out when making kind of refrigeration cycle starting the startup heating running when heating running, auxiliary heating ability time and carry out defrosting running time, the magnetic tube F2 of accumulator F is generated heat.
At this, be described for the control that the temperature anomaly of the magnetic tube F2 for suppressing accumulator F in the control of the electromagnetic induction heating unit 6 during auxiliary heating ability rises.
(abnormal overheated inhibitory control)
Abnormal overheated inhibitory control is in a case where for confirming the control of the internal circulating load this point fully guaranteeing the cold-producing medium flowed in accumulator F, above-mentioned situation refer to the control when the startup of compressor 21 grade terminate after, under the stability contorting state of distribution of refrigerant balanced condition in the refrigerant loop 10 of aircondition 1, for the purpose of auxiliary heating running ability etc., start the situation of the eddy-current heating of electromagnetic induction heating unit 6.
At this, circulating mass of refrigerant in kind of refrigeration cycle (flowing through the refrigerant amount of the magnetic tube F2 part of accumulator F) control part 11 by using being stored in the piston amount of pushing open of the compressor 21 in not shown memory as predetermined amount, the driving rotating speed of compressor 21 that rotating speed assurance portion 29r holds and the suction refrigerant density of compressor 21 be multiplied and calculate.The refrigerant temperature that the refrigerant pressure that this suction refrigerant density control part 11 detects according to the second pressure sensor 29g, inlet temperature sensor 19 detect calculates.
Under stability contorting state, after various controls when the startup of aircondition 1 terminate, under the state that the driving frequency of compressor 21 maintains specified peak frequency, control part 11 changes circulating mass of refrigerant by regulating the aperture of electric expansion valve 24, thus carries out changing the states such as design temperature with the change of extraneous gas temperature, user and change corresponding control.At this, the aperture of control part 11 pairs of electric expansion valves 24 controls, so that the degree of supercooling heating the cold-producing medium flowed between indoor heat converter 41 and electric expansion valve 24 in the flow of refrigerant of operating condition is maintained 5 DEG C.This degree of supercooling is calculated by the difference of control part 11 to the temperature that the saturation temperature suitable with the detected pressures of the second pressure sensor 29g and Indoor Thermal exchange temperature sensor 44 detect and draws.
Below, the flow chart with reference to the abnormal overheated inhibitory control of the humidity shown in Fig. 8 is described.
In step s 11, control part 11 judges whether to be in stability contorting state.At this, when being judged as being in stability contorting state, be transferred to step S12.In addition, under stability contorting state, the output of electromagnetic induction heating unit 6 is 0.
In step s 12, control part 11 judges whether the circulating mass of refrigerant of kind of refrigeration cycle reaches more than the overheated amount of suppression of exception of regulation.When not reaching abnormal overheated amount of suppression, repeatedly carry out step S12.When reaching more than abnormal overheated amount of suppression, be transferred to step S13.
In step s 13, control part 11 starts to utilize electromagnetic induction heating unit 6 couples of accumulator F to carry out eddy-current heating.
In step S14, control part 11 maintains state of a control, and waits for through the stipulated time.
In step S15, control part 11 judges whether the circulating mass of refrigerant of kind of refrigeration cycle reaches more than the overheated amount of suppression of exception of regulation again.When reaching more than abnormal overheated amount of suppression, get back to step S14.When not reaching abnormal overheated amount of suppression, be transferred to step S16.
In step s 16, control part 11 stops the eddy-current heating that utilizes electromagnetic induction heating unit 6 couples of accumulator F to carry out.
Like this, the flow of refrigerant momentum of accumulator F when carrying out eddy-current heating by guaranteeing to utilize electromagnetic induction heating unit 6, can prevent the temperature anomaly of accumulator F from rising.
(feature of the aircondition 1 of the first embodiment)
In aircondition 1, utilizing before electromagnetic induction heating unit 6 couples of accumulator F carry out eddy-current heating, carry out the overheated inhibitory control of exception, thus can be confirmed whether that the circulating mass of refrigerant be in kind of refrigeration cycle is guaranteed to the state of more than abnormal overheated amount of suppression.Therefore, carry out under the state that the eddy-current heating of electromagnetic induction heating unit 6 only has the flow of refrigerant of more than abnormal overheated amount of suppression in kind of refrigeration cycle, under the state that circulating mass of refrigerant is fewer than abnormal overheated amount of suppression, do not carry out the eddy-current heating of electromagnetic induction heating unit 6.
Therefore, the cold-producing medium that the heat being supplied to accumulator F by the eddy-current heating of electromagnetic induction heating unit 6 is recycled seizes, and owing to fully ensure that this refrigerant amount, thus can prevent the temperature anomaly of accumulator F from rising.
(the second embodiment)
Because the structure of the aircondition of the second embodiment is identical with the structure of the aircondition 1 of above-mentioned first embodiment, therefore the description thereof will be omitted.
In the aircondition of the second embodiment, carry out the moist protecting control of abnormal overheated suppression and replace the overheated inhibitory control of the exception of the first embodiment.
The moist protecting control of abnormal overheated suppression is in a case where for confirming the control of the internal circulating load this point fully guaranteeing the cold-producing medium flowed in accumulator F; when above-mentioned situation refers to and carries out the eddy-current heating of electromagnetic induction heating unit 6 in order to auxiliary heating ability after the control when the startup of compressor 21 grade terminates, start the eddy-current heating of electromagnetic induction heating unit 6 to avoid the situation producing liquid compression in compressor 21.Herein in auxiliary heating ability and the eddy-current heating of electromagnetic induction heating unit 6 that carries out, 50% of maximum output is configured to the supply electric power that coil 68 supplies.
Under the state of carrying out the eddy-current heating of electromagnetic induction heating unit 6 for auxiliary heating ability, after various controls when the startup of aircondition 1 terminate, under the state that the driving frequency of compressor 21 maintains specified peak frequency, control part 11 changes circulating mass of refrigerant by regulating the aperture of electric expansion valve 24, thus carries out changing the states such as design temperature with the change of extraneous gas temperature, user and change corresponding control.At this, the aperture of control part 11 pairs of electric expansion valves 24 controls, so that the degree of supercooling heating the cold-producing medium flowed between indoor heat converter 41 and electric expansion valve 24 in the flow of refrigerant of operating condition is maintained 5 DEG C.This degree of supercooling is calculated by the difference of control part 11 to the temperature that the saturation temperature suitable with the detected pressures of the second pressure sensor 29g and Indoor Thermal exchange temperature sensor 44 detect and draws.
The difference of the temperature that the aridity of the suction cold-producing medium of compressor 21 or the degree of superheat saturation temperature suitable according to the pressure detected with the second pressure sensor 29g that be control part 11 detects with electromagnetic induction thermistor 14 calculates.
The aridity of the ejection cold-producing medium of compressor 21 or the degree of superheat are control parts 11, and the saturation temperature suitable according to the pressure detected with the first pressure sensor 29a calculates with the difference spraying the temperature that temperature sensor 29d detects.
Below, the flow chart with reference to the moist protecting control of the overheated suppression of exception shown in Fig. 9 is described.
In the step s 21, during control part 11 judges whether the eddy-current heating of electromagnetic induction heating unit 6 is in and carries out.At this, when be judged as eddy-current heating be in carry out middle time, be transferred to step S22.Being judged as eddy-current heating not when carrying out, repeatedly carry out step S21.
In step S22, control part 11 judges whether to meet and sucks the degree of superheat of cold-producing medium less than 4 DEG C and the degree of superheat of the ejection cold-producing medium eddy-current heating such less than 10 DEG C starts condition.When being judged as that not meeting eddy-current heating starts condition, repeatedly carry out step S22.When being judged as that meeting eddy-current heating starts condition, be transferred to step S23.
In step S23, control part 11 judge the circulating mass of refrigerant of kind of refrigeration cycle whether reach regulation maximum export time the overheated amount of suppression of exception more than.During the overheated amount of suppression of the exception when being judged as not reaching maximum output, repeatedly carry out step S23.When being judged as more than the overheated amount of suppression of exception when reaching maximum output, be transferred to step S24.
In step s 24 which, control part 11 makes the degree of the eddy-current heating utilizing electromagnetic induction heating unit 6 couples of accumulator F to carry out strengthen.That is, the electric power that the coil 68 of electromagnetic induction heating unit 6 is supplied is increased.At this, the electric power supplied coil 68 is promoted to maximum output from the state of 50% of maximum output.
In step s 25, control part 11 maintains state of a control, and waits for through the stipulated time.
In step S26, control part 11 again judge the circulating mass of refrigerant of kind of refrigeration cycle whether reach regulation maximum export time the overheated amount of suppression of exception more than.When being judged as more than the overheated amount of suppression of exception when reaching maximum output, be transferred to step S27.During the overheated amount of suppression of the exception when being judged as not reaching maximum output, be transferred to step S28.
In step s 27, control part 11 judges whether to meet and sucks the degree of superheat of cold-producing medium and reach more than 5 DEG C or the degree of superheat that sprays cold-producing medium and reach more than 12 DEG C such eddy-current heating termination conditions.When being judged as not meeting eddy-current heating termination condition, be transferred to step S25.When being judged as meeting eddy-current heating termination condition, be transferred to step S28.
In step S28, control part 11 makes the output of the eddy-current heating utilizing electromagnetic induction heating unit 6 couples of accumulator F to carry out be reduced to the state of the state of auxiliary heating ability and 50% of maximum output.
Like this, even if also can guarantee the flow of refrigerant momentum of accumulator F when the output of the eddy-current heating of electromagnetic induction heating unit 6 increases, thus can prevent from liquid compression occurring in compressor 21 and preventing the temperature anomaly of accumulator F from rising.
(feature of the aircondition 1 of the second embodiment)
In the moist protecting control of the overheated suppression of the exception of the second embodiment, not only there is the feature of above-mentioned first embodiment, can also prevent from liquid compression occurring in compressor 21 and preventing the temperature anomaly of accumulator F from rising.
In addition, make for auxiliary heating ability in this second embodiment electromagnetic induction heating unit 6 with 50% output carry out in the process of eddy-current heating, when improving the output of electromagnetic induction heating unit 6 further, temperature detected by electromagnetic induction thermistor 14 rises, and therefore not easily judges whether to ensure that the circulating mass of refrigerant by the object part of electromagnetic induction heating unit 6 eddy-current heating.To this, in the aircondition 1 of the second embodiment, the setting position of inlet temperature sensor 19 is located at the position of the eddy-current heating object part downstream than electromagnetic induction heating unit 6.Therefore, by obtaining the density of the cold-producing medium flowed in the downstream of the eddy-current heating object part of electromagnetic induction heating unit 6 in the circulating mass of refrigerant of kind of refrigeration cycle, can not only be held in flow between eddy-current heating object part and compressor 21 by the refrigerant amount under the state after heating, can also the refrigerant amount of downstream flowing being held in eddy-current heating object part.In addition, control part 11 when abnormal overheated amount of suppression, allows the output of electromagnetic induction heating unit 6 to become maximum when above-mentioned internal circulating load is maximum output.By this, even if when the eddy-current heating of electromagnetic induction heating unit 6 carries out with maximum output, the abnormal temperature of eddy-current heating object part also can be suppressed to rise.
Other embodiment of < >
Above, with reference to the accompanying drawings embodiments of the present invention are illustrated, but concrete structure is not limited to above-mentioned embodiment, can be changed in the scope not departing from thought of the present invention.
(A)
In the above-described embodiment, to use SUS430 to be illustrated as the situation of the material of magnetic tube F2.
But the present invention is not limited thereto.Such as, the conductors such as iron, copper, aluminium, chromium, nickel and the alloy etc. containing at least two or more metals wherein can be adopted.
In addition, as magnetic material, such as, the material that can list ferrite type, this bi-material of martensite and this bi-material is combined, but it is preferable that ferromagnetic, resistance are higher and the material that Curie temperature is higher than serviceability temperature scope.
Accumulator F herein needs more electric power, but also can not comprise magnetic and the material containing magnetic, also can containing the material becoming eddy-current heating object.
In addition, magnetic material such as both can form the whole of accumulator F, also only can be formed at the inner surface of accumulator F, also by be contained in form accumulator F pipe arrangement material in and exist.
(B)
In the above-described 2nd embodiment, in order to holding the aridity of suction cold-producing medium of compressor 21 by the detected temperatures of electromagnetic induction thermistor 14 or the situation of the degree of superheat is that example is illustrated.
But the present invention is not limited thereto.
Such as, utilize that to detect in the temperature of the cold-producing medium of eddy-current heating partial-flow during electromagnetic induction thermistor 14 pairs of electromagnetic induction heating unit 6 eddy-current heating be difficult, higher temperature may be detected because of the heating of magnetic tube F2.
In this case, also between eddy-current heating object part and the suction side of compressor 21, can arrange sensor further to replace electromagnetic induction thermistor 14, the temperature of accumulator F of this sensor to the distance can ignoring the heat transfer error caused because of eddy-current heating apart from eddy-current heating object part detects.By this, even if in eddy-current heating process, aridity or the degree of superheat of the suction cold-producing medium of compressor 21 also more correctly can be held.
(C)
The eddy-current heating starting condition and eddy-current heating termination condition and the second embodiment for the eddy-current heating of above-mentioned first embodiment starts condition and eddy-current heating termination condition is set to that the situation of the same terms is illustrated.
But the present invention is not limited thereto.Such as, in the moist protecting control of the overheated suppression of the exception of the second embodiment, eddy-current heating is brought up to maximum output further by the output of electromagnetic induction heating unit 6 in 50% output procedure.Therefore, eddy-current heating for being increased to maximum output starts compared with condition (eddy-current heating of the second embodiment starts condition) also can adopt and start condition with the eddy-current heating of the first embodiment, and the suction cold-producing medium of compressor 21 is in moister state as condition.
(D)
In the above-described 2nd embodiment, the output of electromagnetic induction heating unit 6 is illustrated from the situation that 50% is increased to maximum output when ensure that the circulating mass of refrigerant of abnormal overheated amount of suppression.
But the present invention is not limited thereto.Such as, the output of electromagnetic induction heating unit 6 also can be regulated according to calculated circulating mass of refrigerant.
(E)
In above-mentioned first embodiment, the second embodiment, judging whether to reach abnormal overheated amount of suppression respectively, when whether reaching maximum output, the situation of abnormal overheated amount of suppression is illustrated.
But the present invention is not limited thereto.Such as, when the output of electromagnetic induction heating unit 6 cannot be improved because of abnormal overheated amount of suppression when not reaching abnormal overheated amount of suppression, maximum output, also can carry out the control of the speed improving compressor 21, thus form the environment that can increase the eddy-current heating ability of electromagnetic induction heating unit 6 on one's own initiative when the abnormal temperature that can not cause eddy-current heating object part rises.
(F)
In the above-described first embodiment, to be made the stable situation of the refrigerant condition of kind of refrigeration cycle be illustrated by degree of supercooling constant control.
But the present invention is not limited thereto.
Such as, the control making the intensity of variation of the distribution of cold-producing medium in kind of refrigeration cycle maintain the stipulated time under specified distribution state or within the scope of specified distribution can also be carried out.For the detection of this distribution of refrigerant state, such as also can pre-set the liquid level that inspection window etc. holds cold-producing medium on the condenser of kind of refrigeration cycle, thus hold distribution of refrigerant state, line stabilizationization of going forward side by side controls, and becomes specified distribution state to make this distribution or is within the scope of specified distribution.
(G)
In the above-described embodiment, the situation of the accumulator F in refrigerant loop 10 installing electromagnetic induction heating unit 6 is illustrated.
But the present invention is not limited thereto.
Such as, electromagnetic induction heating unit 6 also can be located at other refrigerant piping beyond accumulator F.In this case, the magnetics such as magnetic tube F2 are set in the refrigerant piping part arranging electromagnetic induction heating unit 6.
(H)
In the above-described embodiment, the situation being configured to the dual pipe of copper pipe F1 and magnetic tube F2 for accumulator F is illustrated.
But the present invention is not limited thereto.
As shown in Figure 10, such as, also magnetic component F2a and two locating part F1a can be configured in accumulator F, become the inside of the refrigerant piping of heating target.At this, magnetic component F2a contains magnetic material, and it is the component being produced heating by electromagnetic induction heating in above-mentioned embodiment.Locating part F1a allows cold-producing medium to pass through at inner side two place of copper pipe F1 all the time, but does not allow magnetic component F2a to pass through.By this, even if flow of refrigerant, magnetic component F2a also can not move.Therefore, the target heating location of accumulator F etc. can be heated.In addition, because the magnetic component F2a of heating directly contacts with cold-producing medium, therefore heat conduction efficiency can be improved.
(I)
Position also can be positioned pipe arrangement when not using locating part F1a by the magnetic component F2a illustrated in above-mentioned another embodiment (H).
As shown in figure 11, such as, sweep FW can be set at two places of copper pipe F1, and magnetic component F2a is configured at the inner side of the copper pipe F1 between this two place sweep FW.Even if like this, cold-producing medium also can be made to flow through, and the movement of magnetic component F2a can be suppressed.
(J)
In the above-described embodiment, the situation that coil 68 helically is wound in accumulator F is illustrated.
But the present invention is not limited thereto.
Such as, can as shown in figure 12, the coil 168 being wound in bobbin main body 165 is not wound in accumulator F, but is configured at around accumulator F.At this, bobbin main body 165 configures in its axial mode substantially vertical with the axis of accumulator F.In addition, bobbin main body 165 and coil 168 configure in the mode of clamping accumulator F with being divided into two components.In this case, it is preferable that, as shown in figure 12, the first bobbin lid 163 run through for accumulator F and the second bobbin lid 164 configure with the state engaged with bobbin main body 165.In addition, it is preferable that, as shown in figure 12, the first bobbin lid 163 and the second bobbin lid 164 are clamped by the first ferrite housing 171 and the second ferrite housing 172 and are fixed.
In the example shown in this Figure 12, illustrate the situation that two ferrite housings 171,172 are arranged in the mode of clamping accumulator F, but same with above-mentioned embodiment, and each ferrite housing is also configurable on the four direction around accumulator F.In addition, same with above-mentioned embodiment, also can accommodate ferrite.
(other)
Above, for some examples, embodiments of the present invention are illustrated, but the present invention is not limited thereto.Such as, can carry out appropriately combined for the different piece of above-mentioned embodiment and combination embodiment that is that obtain also is contained in the present invention according to above-mentioned record in the scope implemented those skilled in the art.
Industrial utilizability
If utilize the present invention, then can suppress the component excessive heating of generating heat because of eddy-current heating, therefore, particularly useful to the aircondition carrying out heating and cooling agent by electromagnetic induction heating.
(symbol description)
1 aircondition
11 control parts
19 inlet temperature sensors (sucking refrigerant temperature assurance portion)
21 compressors (compressing mechanism)
23 outdoor heat converters (refrigerant heat device)
24 electric expansion valves (expansion mechanism)
29a first pressure sensor
29g second pressure sensor (low pressure assurance portion)
29r rotating speed assurance portion (internal circulating load assurance portion)
41 indoor heat converters (refrigerant cooler)
44 Indoor Thermal exchange temperature sensors (degree of supercooling assurance portion)
68 coils (magnetic field generation section)
F accumulator (refrigerant piping)
Prior art document
Patent document
Patent document 1: Japanese Patent Laid-Open 2007-255736 publication
Claims (6)
1. an aircondition (1), at least comprise compressing mechanism (21), refrigerant cooler (41), expansion mechanism (24), refrigerant heat device (23) and refrigerant piping (F), described refrigerant piping (F) is for making cold-producing medium circulation in described compressing mechanism (21), described refrigerant cooler (41), described expansion mechanism (24) and described refrigerant heat device (23), it is characterized in that, comprising:
Magnetic field generation section (68), this magnetic field generation section (68) is in order to described refrigerant piping (F) and/or carry out eddy-current heating with the component of the described cold-producing medium thermo-contact of flowing in the described refrigerant piping (F) and produce magnetic field;
Internal circulating load assurance portion (29r), the circulating mass of refrigerant of this internal circulating load assurance portion (29r) to the kind of refrigeration cycle at least comprising described compressing mechanism (21), described refrigerant cooler (41), described expansion mechanism (24) and described refrigerant heat device (23) is held; And
Control part (11), this control part (11) carries out magnetic field and exports control when the circulating mass of refrigerant that described internal circulating load assurance portion (29r) is held increases, described magnetic field generation section (68) is made to produce magnetic field, or the magnetic field making described magnetic field generation section (68) produce increases, or the upper limit in the magnetic field making described magnetic field generation section (68) produce improves
Described refrigerant piping (F) comprises the suction refrigerant piping of the suction side being positioned at described compressing mechanism (21),
Described magnetic field generation section (68) produces and is used for carrying out the magnetic field of eddy-current heating to described suction refrigerant piping and/or with the component of the cold-producing medium thermo-contact of flowing in described suction refrigerant piping,
Between the outlet that described magnetic field generation section (68) is configured in described refrigerant heat device (23) and the suction side of described compressing mechanism (21).
2. aircondition (1) as claimed in claim 1, is characterized in that,
Described internal circulating load assurance portion (29r) is at least determined according to the driving frequency of the piston amount of pushing open of the regulation of described compressing mechanism (21), described compressing mechanism (21) and the suction refrigerant density of described compressing mechanism (21).
3. aircondition (1) as claimed in claim 2, is characterized in that, also comprise:
Low pressure assurance portion (29g), the pressure of this low pressure assurance portion (29g) to the cold-producing medium that the low-pressure section in described kind of refrigeration cycle flows is held; And
Suck refrigerant temperature assurance portion (19), this suction refrigerant temperature assurance portion (19) suction refrigerant temperature to described compressing mechanism (21) is held,
The pressure that described internal circulating load assurance portion (29r) uses described low pressure assurance portion (29g) to hold and the temperature that described suction refrigerant temperature assurance portion (19) is held, obtain the suction refrigerant density of described compressing mechanism (21).
4. aircondition (1) as claimed in claim 3, is characterized in that,
Described suction refrigerant temperature assurance portion (19) is detected the quantity of state by the cold-producing medium with upper/lower positions, this position is arranged in the suction side of the described compressing mechanism (21) of described kind of refrigeration cycle, and ratio is by the part downstream of described magnetic field generation section (68) eddy-current heating.
5. aircondition (1) as claimed in claim 3, is characterized in that,
When the suction cold-producing medium of described compressing mechanism (21) is in the superheat state of below dampness or the regulation degree of superheat, described control part (11) carries out described magnetic field and exports control.
6. aircondition (1) as claimed in claim 1, is characterized in that,
When the circulating mass of refrigerant that described internal circulating load assurance portion (29r) is held exceedes setting, described control part (11) carries out described magnetic field and exports control.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009069118A JP5647396B2 (en) | 2009-03-19 | 2009-03-19 | Air conditioner |
| JP2009-069118 | 2009-03-19 | ||
| PCT/JP2010/001941 WO2010106804A1 (en) | 2009-03-19 | 2010-03-18 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102348941A CN102348941A (en) | 2012-02-08 |
| CN102348941B true CN102348941B (en) | 2015-05-13 |
Family
ID=42739472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080011824.9A Expired - Fee Related CN102348941B (en) | 2009-03-19 | 2010-03-18 | Air conditioner |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20120000225A1 (en) |
| EP (1) | EP2410261A4 (en) |
| JP (1) | JP5647396B2 (en) |
| KR (1) | KR20110139285A (en) |
| CN (1) | CN102348941B (en) |
| AU (1) | AU2010225943B2 (en) |
| RU (1) | RU2479800C1 (en) |
| WO (1) | WO2010106804A1 (en) |
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| CN102356283B (en) * | 2009-03-19 | 2014-04-16 | 大金工业株式会社 | Air conditioning device |
| JP5886463B1 (en) * | 2015-08-07 | 2016-03-16 | 伸和コントロールズ株式会社 | Air conditioner and operation method thereof |
| CN107588496B (en) * | 2017-08-22 | 2020-08-14 | 广东美的暖通设备有限公司 | Fresh air fan, control method of air supply temperature of fresh air fan and computer readable storage medium |
| JP6858883B2 (en) * | 2017-11-02 | 2021-04-14 | 三菱電機株式会社 | Refrigeration cycle equipment |
| JP7309064B2 (en) | 2020-05-25 | 2023-07-14 | 三菱電機株式会社 | refrigeration cycle equipment |
| CN114383222A (en) * | 2021-12-16 | 2022-04-22 | 青岛海尔空调器有限总公司 | Air conditioner |
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- 2010-03-18 WO PCT/JP2010/001941 patent/WO2010106804A1/en active Application Filing
- 2010-03-18 CN CN201080011824.9A patent/CN102348941B/en not_active Expired - Fee Related
- 2010-03-18 KR KR1020117024493A patent/KR20110139285A/en not_active Application Discontinuation
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2010225943B2 (en) | 2012-11-08 |
| AU2010225943A1 (en) | 2011-10-13 |
| KR20110139285A (en) | 2011-12-28 |
| WO2010106804A1 (en) | 2010-09-23 |
| JP2010223456A (en) | 2010-10-07 |
| EP2410261A4 (en) | 2015-03-18 |
| WO2010106804A9 (en) | 2012-03-01 |
| US20120000225A1 (en) | 2012-01-05 |
| CN102348941A (en) | 2012-02-08 |
| JP5647396B2 (en) | 2014-12-24 |
| EP2410261A1 (en) | 2012-01-25 |
| RU2479800C1 (en) | 2013-04-20 |
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