CN108603706A - Air-conditioning device - Google Patents
Air-conditioning device Download PDFInfo
- Publication number
- CN108603706A CN108603706A CN201680079374.4A CN201680079374A CN108603706A CN 108603706 A CN108603706 A CN 108603706A CN 201680079374 A CN201680079374 A CN 201680079374A CN 108603706 A CN108603706 A CN 108603706A
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- China
- Prior art keywords
- temperature
- defrosting operating
- air
- outdoor
- conditioning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
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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
- F25B2600/00—Control issues
- F25B2600/01—Timing
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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
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
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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
- F25B2700/2106—Temperatures of fresh outdoor air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Air-conditioning device includes：Refrigerant circuit, the refrigerant circuit are flowed using piping connect compressor, flow path switching part, outdoor heat exchanger, bulge and indoor heat exchanger for refrigerant；And control unit, to switch heating operation and defrosting operating, control unit has for the action of the control unit control refrigerant circuit：Judging part, in the case where implementing heating operation, operation information of the judging part based on refrigerant circuit determines whether the beginning condition for changing defrosting operating；Change parts, judgement of the change parts based on judging part is as a result, change the beginning condition of defrosting operating；And switching part, in the case where the beginning condition of defrosting operating is satisfied, the switching part makes flow path switching part switch over to start defrosting operating.
Description
Technical field
The present invention relates to a kind of air-conditioning devices for the frost removal being attached to outdoor heat exchanger.
Background technology
In the past, known a kind of air-conditioning device with refrigerant circuit, using piping connect compressor, flow path switching part,
Outdoor heat exchanger, bulge and indoor heat exchanger and form the refrigerant circuit.In heating operation, sent out as evaporator
The pressure saturation temperature for waving the outdoor heat exchanger of effect be the dew-point temperature of outdoor air or less and be water solidification point it is below
In the case of, frost is attached to outdoor heat exchanger.It is attached into being about in air-conditioning device in the case where frost is attached to outdoor heat exchanger
It in the defrosting operating of the frost removal of outdoor heat exchanger, to inhibit the heat exchange of the outdoor heat exchanger caused by upper white phenomenon
The decline of energy.
In patent document 1, disclose it is a kind of include outdoor heat exchange temperature sensor, external air temperature sensor and
The air conditioner of human body detection sensor.Output and external air temperature of the patent document 1 in outdoor heat exchange temperature sensor
The output of sensor meets the beginning condition of defrosting operating, and further detects nobody in room using human body detection sensor
When interior, start defrosting operating.Inhibit as a result, someone indoors when carry out defrosting operating, it is desirable to maintain comfort.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2011-185535 bulletins
Invention content
Problems to be solved by the invention
But the beginning condition of the defrosting operating of air conditioner disclosed in patent document 1 is constant.Therefore, as long as someone
Indoors, even if without defrosting operating if meeting the beginning condition of defrosting operating, make under the heat-exchange capacity of outdoor heat exchanger
Drop.In this way, patent document 1 can not accurately judge whether to defrosting operating.
The present invention makes to solve the problems, such as described above, provides a kind of improve and judges whether to defrosting fortune
The air-conditioning device of the judgement precision turned.
The solution to the problem
The present invention air-conditioning device include：Refrigerant circuit, above-mentioned refrigerant circuit utilize piping connect compressor, flow path
Switching part, outdoor heat exchanger, bulge and indoor heat exchanger are flowed for refrigerant；And control unit, above-mentioned control unit control
The action of above-mentioned refrigerant circuit, to switch heating operation and defrosting operating, control unit has：Judging part is implementing system
In the case of heat run, operation information of the above-mentioned judging part based on refrigerant circuit determines whether to change opening for defrosting operating
Beginning condition；Change parts, judgement of the above-mentioned change parts based on judging part is as a result, change the beginning condition of defrosting operating；With
And switching part, in the case where the beginning condition of defrosting operating is satisfied, above-mentioned switching part make flow path switching part into
Row switching is to start defrosting operating.
The effect of invention
Using the present invention, the judgement based on operation information is as a result, change the beginning condition of defrosting operating.Thus, it is possible to accurate
Really judge whether to defrosting operating.
Description of the drawings
Fig. 1 is the loop diagram for the air-conditioning device 1 for indicating embodiments of the present invention 1.
Fig. 2 is the block diagram of the control unit 30 for the air-conditioning device 1 for indicating embodiments of the present invention 1.
Fig. 3 is the flow chart of the action for the air-conditioning device 1 for indicating embodiments of the present invention 1.
Fig. 4 is the block diagram of the control unit 130 for the air-conditioning device 100 for indicating embodiments of the present invention 2.
Fig. 5 is the block diagram of the control unit 230 for the air-conditioning device 200 for indicating embodiments of the present invention 3.
Fig. 6 is the block diagram of the control unit 330 for the air-conditioning device 300 for indicating embodiments of the present invention 4.
Fig. 7 is the flow chart of the action for the air-conditioning device 300 for indicating embodiments of the present invention 4.
Fig. 8 is the block diagram of the control unit 430 for the air-conditioning device 400 for indicating embodiments of the present invention 5.
Fig. 9 is the flow chart of the action for the air-conditioning device 400 for indicating embodiments of the present invention 5.
Specific implementation mode
Embodiment 1.
Hereinafter, being described with reference to the embodiment of the air-conditioning device of the present invention.Fig. 1 is to indicate embodiments of the present invention
The loop diagram of 1 air-conditioning device 1.Illustrate air-conditioning device 1 based on the Fig. 1.As shown in Figure 1, air-conditioning device 1 includes outdoor unit 2, room
Interior machine 3 and remote controler 4.The setting of outdoor unit 2 has compressor 6, flow path switching part 7, outdoor heat exchanger 8, outdoor air blast in outdoor
Machine 8a, bulge 9, outdoor temperature test section 21, outdoor heat exchange temperature test section 22 and outdoor control base board 30a.It is indoor
Machine 3 be arranged indoors, have indoor heat exchanger 10, indoor blower 10a, indoor temperature test section 23, body detecting part 24 with
And indoor control base board 30b.Here, compressor 6, flow path switching part 7, outdoor heat exchanger 8, bulge 9 and indoor heat exchanger
10 are connected by piping, constitute the refrigerant circuit 5 flowed for refrigerant.In addition, by outdoor control base board 30a and indoor control base
Plate 30b constitutes control unit 30.
Compressor 6 compresses refrigerant.Flow path switching part 7 switches the direction of the flowing of refrigerant in refrigerant circuit 5.Stream
The refrigerant being discharged from compressor 6 is switched to by road switching part 7 to be flowed to outdoor heat exchanger 8 or is flowed to indoor heat exchanger 10,
Thus any one of refrigeration operation, heating operation or defrosting operating are carried out.Outdoor heat exchanger 8 make outdoor air and refrigerant into
Row heat exchange.Outdoor blowers 8a send outdoor air to the drum of outdoor heat exchanger 8.Bulge 9 makes refrigerant expand and depressurize, example
It is adjusted the electromagnetic expanding valve of aperture in this way.Indoor heat exchanger 10 makes room air carry out heat exchange with refrigerant.Indoor air blast
Machine 10a send room air to the drum of indoor heat exchanger 10.
Temperature outside 21 sensing chamber of outdoor temperature test section.Outdoor heat exchange temperature test section 22 detects outdoor heat exchanger 8
Temperature.Indoor temperature test section 23 detects indoor temperature.The presence or absence of human body detects in body detecting part 24.Outdoor control base board
30a controls each equipment of outdoor unit 2, each equipment of indoor control base board 30b controls indoor unit 3.Outdoor control base board 30a and room
Interior control base board 30b is connected by indoor/outdoor communication lines 30c, and sending and receiving for signal is carried out via indoor/outdoor communication lines 30c.
Remote controler 4 is connect using remote line 4a with interior control base board 30b, via remote line 4a and indoor control base board
Sending and receiving for signal is carried out between 30b.For example, remote controler 4 makes refrigerant circuit 5 to indoor control base board 30b transmissions
Operate the stop signal stopped.Indoor unit 3 and outdoor unit 2 shut down as a result,.In addition, remote controler 4 is to indoor control base board
30b sends the commencing signal for the operation start for making refrigerant circuit 5.Indoor unit 3 and outdoor unit 2 start running as a result,.
Fig. 2 is the block diagram of the control unit 30 for the air-conditioning device 1 for indicating embodiments of the present invention 1.Next, illustrating to control
Portion 30.In present embodiment 1, control unit 30 is, for example, CPU, as described above by outdoor control base board 30a and indoor control base
Plate 30b is constituted, but control unit 30 can also be set as single control base board, in such a case it is possible to be set to outdoor unit 2 and
Any one of indoor unit 3.In addition, the outside in outdoor unit 2 and indoor unit 3 can also be arranged in control unit 30.Such as Fig. 2 institutes
Show, control unit 30 has storage unit 31, judging part 32, change parts 33 and switching part 34.
Storage unit 31 stores the outdoor heat exchange temperature threshold value etc. needed for the beginning condition of defrosting operating.Carrying out outdoor
In the case of the heating operation that heat exchanger 8 plays a role as evaporator, the beginning condition of defrosting operating is：Outdoor heat exchanger 8
Temperature be outdoor heat exchange temperature threshold value or less.In the case where having carried out heating operation for a long time, played as evaporator
The pressure saturation temperature of the outdoor heat exchanger 8 of effect declines.Also, it is outdoor empty in the pressure saturation temperature of outdoor heat exchanger 8
Below the dew-point temperature of gas and for water solidification point it is below in the case of, frost is attached to outdoor heat exchanger 8.It is attached to outdoor in frost
In the case of heat exchanger 8, in air-conditioning device 1, into the defrosting operating for the frost removal for being about to be attached to outdoor heat exchanger 8, to
Inhibit the decline of the heat exchange performance of outdoor heat exchanger 8 caused by upper white phenomenon.In addition, in present embodiment 1, defrosting fortune
The beginning condition turned is set as the decline of the temperature of outdoor heat exchanger 8, but the present invention is not limited thereto, can also be set as outdoor temperature
The decline etc. of degree.
In the case where implementing heating operation, operation information of the judging part 32 based on refrigerant circuit 5 determines whether
Change the beginning condition of defrosting operating.In present embodiment 1, operation information is obtained using the detection of outdoor temperature test section 21
Temperature.Namely it is decided that component 32 judges whether the temperature detected by outdoor temperature test section 21 is outdoor temperature threshold value or less.
The beginning condition of judgement result change defrosting operating of the change parts 33 based on judging part 32.In present embodiment
In 1, operation information is to detect obtained temperature using outdoor temperature test section 21.That is, when being judged to utilizing in judging part 32
It is the change defrosting fortune of change parts 33 in the case of outdoor temperature threshold value is below that outdoor temperature test section 21, which detects obtained temperature,
The beginning condition turned.
As described above, in present embodiment 1, transported carrying out the heating that outdoor heat exchanger 8 plays a role as evaporator
In the case of turning, the beginning condition of defrosting operating is：The temperature of outdoor heat exchanger 8 is outdoor heat exchange temperature threshold value or less.
In the case of implementing heating operation, operation information of the change parts 33 based on refrigerant circuit 5, by outdoor heat exchange temperature threshold
Value is changed to the outdoor heat exchange temperature higher than outdoor heat exchange temperature threshold value and mitigates threshold value.By outdoor heat exchange temperature threshold value
It is set as Thex1, when outdoor heat exchange temperature mitigation threshold value is set as Thex2, Thex1<Thex2.Carrying out heating operation as a result,
And when the temperature of outdoor heat exchanger 8 constantly declines, first reach outdoor heat exchange temperature than outdoor heat exchange temperature threshold value Thex1
Mitigate threshold value Thex2.That is, compared with outdoor heat exchange temperature threshold value Thex1, it is slow that outdoor heat exchange temperature mitigates threshold value Thex2
With the beginning condition of defrosting operating, defrosting operating is made to start early.
In this way, being determined as that it is outdoor temperature threshold value feelings below to detect obtained temperature using outdoor temperature test section 21
Under condition, outdoor heat exchange temperature threshold value is changed to outdoor heat exchange temperature and mitigates threshold value.It is lower in outdoor temperature as a result,
In the case of, judge that the white possibility for being attached to outdoor heat exchanger 8 is higher, defrosting operating easy to implement.
In addition, change parts 33 also has the testing result based on body detecting part 24, the beginning item of defrosting operating is changed
The function of part.In present embodiment 1, in the case where implementing heating operation, obtained using the detection of body detecting part 24
Nobody indoors in the case of, outdoor heat exchange temperature threshold value is changed to higher than outdoor heat exchange temperature threshold value by change parts 33
Outdoor heat exchange temperature mitigate threshold value.As a result, nobody indoors in the case of, judge not needing the possibility of heating operation
It is higher, defrosting operating easy to implement.
In the case where the beginning condition for being stored in the defrosting operating of storage unit 31 is satisfied, switching part 34 makes
Flow path switching part 7 is switched over to start defrosting operating.Here, carrying out what outdoor heat exchanger 8 played a role as evaporator
In the case of heating operation, the beginning condition of defrosting operating is：The temperature of outdoor heat exchanger 8 be outdoor heat exchange temperature threshold value with
Under.In the case where change parts 33 not being utilized to change the beginning condition of defrosting operating, detected when using outdoor heat exchange temperature
When the temperature that obtained outdoor heat exchanger 8 is detected in portion 22 is outdoor heat exchange temperature threshold value or less, switching part 34 makes flow path cut
Portion 7 is changed to switch over.In addition, in the case where changing the beginning condition of defrosting operating using change parts 33, when utilizing room
The temperature that outer heat exchange temperature test section 22 detects obtained outdoor heat exchanger 8 is that outdoor heat exchange temperature mitigates threshold value or less
When, switching part 34 makes flow path switching part 7 switch over.
In addition, the action that control unit 30 also carries out temperature sensor closing and temperature sensor is opened.This is to reality
Room temperature U：I DEG C and set temperature V：J DEG C is compared, and judges whether the operating for continuing outdoor unit 2 and indoor unit 3.Here,
Actual room temperature U is to detect obtained temperature using indoor temperature test section 23.Set temperature V is that user etc. uses remote controler
The target room temperature of 4 settings.In heating operation, in the case where actual room temperature U is set temperature V or more (i >=j), by room
The control unit 30 that outer control base board 30a and indoor control base board 30b are constituted is judged as that the heating capacity that user seeks obtains
Ensure, into the action for exercising the temperature sensor closing that operating temporarily ceases.At that time, the indoor unit 3 after stopping is to control unit 30
Send temperature sensor shutdown signal.
In addition, when temperature sensor is closed, also continue to act.When temperature sensor is closed, become in actual room temperature U
It obtains and is less than set temperature V (i<J) in the case of, the control unit that is made of outdoor control base board 30a and interior control base board 30b
30 are judged as that the heating capacity that user seeks is insufficient, into the action for exercising the temperature sensor opening that operating restarts.
When, restart the indoor unit 3 after operating and sends temperature sensor opening signal to control unit 30.
Next, illustrating the operation mode of air-conditioning device 1.Air-conditioning device 1 has refrigeration operation, heating operation and defrosting
Operating is used as operation mode.Refrigeration operation makes refrigerant successively in compressor 6, flow path switching part 7, outdoor heat exchanger 8, expansion
It is flowed in portion 9 and indoor heat exchanger 10, room air and refrigerant is made to carry out heat exchange and cooling chamber at heat exchanger 10 indoors
Interior air.Heating operation makes refrigerant be changed successively in compressor 6, flow path switching part 7, indoor heat exchanger 10, bulge 9 and outdoor
It is flowed in hot device 8, room air and refrigerant is made to carry out heat exchange and heating indoor air at heat exchanger 10 indoors.Defrosting fortune
Turn that refrigerant is made to flow in compressor 6, flow path switching part 7, outdoor heat exchanger 8, bulge 9 and indoor heat exchanger 10 successively,
The frost removal of outdoor heat exchanger 8 will be attached to.
Next, illustrating the action of each operation mode of air-conditioning device 1.First, illustrate refrigeration operation.In refrigeration operation
In, the refrigerant being inhaled into compressor 6 is compressed and be discharged with the gaseous state of high temperature and pressure by compressor 6.From compressor 6
The refrigerant of the gaseous state of the high temperature and pressure of discharge flows into outdoor heat exchanger 8 by flow path switching part 7, in outdoor heat exchanger 8
Place and the condensation liquefaction using the outdoor air progress heat exchange that outdoor blowers 8a drums are sent.The refrigeration of condensed liquid condition
Agent flows into bulge 9, is expanded at bulge 9 and depressurizes and become gas-liquid two-phase state.Then, the system of gas-liquid two-phase state
Cryogen flows into indoor heat exchanger 10, carries out heat exchange and boil-off gas with room air at heat exchanger 10 indoors.At this point, room
Interior air is cooled, implements refrigeration.The refrigerant of gaseous state after evaporation is inhaled into compressor 6 by flow path switching part 7
In.
Next, illustrating heating operation.In heating operation, the refrigerant being inhaled into compressor 6 is pressed by compressor 6
It contracts and is discharged with the gaseous state of high temperature and pressure.The refrigerant of the gaseous state for the high temperature and pressure being discharged from compressor 6 passes through stream
Road switching part 7 flows into indoor heat exchanger 10, indoors at heat exchanger 10 with the room air that is sent using indoor blower 10a drum into
Row heat exchange and condensation liquefaction.At this point, room air is heated, implement heating.The refrigerant of condensed liquid condition flows into
Bulge 9 expands at bulge 9 and depressurizes and become gas-liquid two-phase state.Then, the refrigerant stream of gas-liquid two-phase state
Enter outdoor heat exchanger 8, heat exchange and boil-off gas are carried out with outdoor air at outdoor heat exchanger 8.Gas shape after evaporation
The refrigerant of state is inhaled by flow path switching part 7 in compressor 6.
Next, illustrating defrosting operating.In air-conditioning device 1, when carrying out heating operation, frost is attached to outdoor and changes sometimes
Hot device 8.In order to remove the frost, defrosting operating is carried out.In defrosting operating, the refrigerant being inhaled into compressor 6 is compressed
Machine 6 is compressed and is discharged with the gaseous state of high temperature and pressure.The refrigerant of the gaseous state for the high temperature and pressure being discharged from compressor 6 is logical
It crosses flow path switching part 7 and flows into outdoor heat exchanger 8, the frost for being attached to outdoor heat exchanger 8 is made to melt.Then, refrigerant is changed in outdoor
At hot device 8 heat exchange and condensation liquefaction are carried out with outdoor air.The refrigerant of condensed liquid condition flows into bulge 9.This
When, make 9 standard-sized sheet of bulge, refrigerant that liquid condition be maintained unchangeably to flow into indoor heat exchanger 10.Then, the refrigeration of liquid condition
Agent flows into indoor heat exchanger 10, carries out heat exchange and boil-off gas with room air at heat exchanger 10 indoors.After evaporation
The refrigerant of gaseous state is inhaled by flow path switching part 7 in compressor 6.
Fig. 3 is the flow chart of the action for the air-conditioning device 1 for indicating embodiments of the present invention 1.Next, illustrating this implementation
The action of the control unit 30 of the air-conditioning device 1 of mode 1.As shown in figure 3, when starting heating operation, judge in judging part 32
Detect whether obtained temperature is outdoor temperature threshold value or less (step ST1) by outdoor temperature test section 21.Utilizing outdoor temp
Degree test section 21 detects obtained temperature and is more than in the case of outdoor temperature threshold value ("No" of step ST1), is judged as utilizing room
The temperature that outer heat exchange temperature test section 22 detects obtained outdoor heat exchanger 8 is outdoor heat exchange temperature threshold value or less (step
ST2).Temperature in outdoor heat exchanger 8 is ("Yes" of step ST2) below for outdoor heat exchange temperature threshold value, utilizes
Switching part 34 makes flow path switching part 7 switch over, and starts defrosting operating.On the other hand, it is more than in the temperature of outdoor heat exchanger 8
In the case of outdoor heat exchange temperature threshold value ("No" of step ST2), step ST1 is returned to.
Here, the situation (step that obtained temperature is outdoor temperature threshold value or less is being detected using outdoor temperature test section 21
The "Yes" of rapid ST1), it is detected the presence or absence of human body (step ST3) using body detecting part 24.Detecting someone in case
("No" of step ST3), proceeds to step ST2.On the other hand, detect nobody ("Yes" of step ST3) in case,
Outdoor heat exchange temperature threshold value is changed to the outdoor heat exchange temperature higher than outdoor heat exchange temperature threshold value using change parts 33
Degree mitigates threshold value, is judged as whether the temperature of the outdoor heat exchanger 8 obtained by the detection of outdoor heat exchange temperature test section 22 is room
Outer heat exchange temperature mitigates threshold value or less (step ST4).It is that outdoor heat exchange temperature mitigates threshold value in the temperature of outdoor heat exchanger 8
In the case of below ("Yes" of step ST4), switch flow path switching part 7 using switching part 34, start defrosting operating.Another party
Face is more than ("No" of step ST4) in the case that outdoor heat exchange temperature mitigates threshold value in the temperature of outdoor heat exchanger 8, returns to
Step ST1.
Using present embodiment 1, the beginning condition of the judgement result change defrosting operating based on operation information.In the past, public
A kind of air conditioner that the beginning condition of defrosting operating is constant is known, as long as someone is indoors, even if then meeting opening for defrosting operating
Beginning condition makes the heat-exchange capacity of outdoor heat exchanger 8 decline also without defrosting operating.This just can not accurately judge whether
Carry out defrosting operating.In contrast, present embodiment 1 changes the beginning of defrosting operating due to the judgement result based on operation information
Condition, so defrosting operating can be judged whether to accurately.It is known a kind of only according to whether someone sentences in addition, previous
The air conditioner of the beginning of disconnected defrosting operating, in this case, according to be easy to nobody when carry out the setting of defrosting operating, then
If higher in outdoor temperature, when that need not defrost originally, defrosting operating also can repeatedly occur, and may cause
The decline of room temperature.In contrast, present embodiment 1 changes the beginning item of defrosting operating due to the judgement result based on operation information
Part, so can inhibit unnecessary defrosting operating is i.e. extra to remove white (Japanese：Empty frost takes り) repeatedly generation.
In addition, further including body detecting part 24, which detects the presence or absence of human body, and change parts 33 is based on sentencing
The judgement of component 32 is determined as a result, and based on the testing result of body detecting part 24, changing the beginning condition of defrosting operating.By
This, will not repeatedly occur it is extra go frost range in, as nobody when do not need heating capacity in the case of, product
Polar region carries out defrosting operating.Thus, when someone indoors when, do not influence the comfort of user.
In addition, further including outdoor heat exchange temperature test section 22, changed outside 22 sensing chamber of outdoor heat exchange temperature test section
The beginning condition of the temperature of hot device 8, defrosting operating is：The temperature obtained using the detection of outdoor heat exchange temperature test section 22 is room
Outer heat exchange temperature threshold value is hereinafter, in the case where implementing heating operation, operating of the change parts 33 based on refrigerant circuit 5
Outdoor heat exchange temperature threshold value is changed to the outdoor heat exchange temperature higher than outdoor heat exchange temperature threshold value and mitigates threshold value by information.
In this way, the temperature by judging outdoor heat exchanger 8, is capable of deciding whether to defrost.
In addition, further include outdoor temperature test section 21, the temperature outside above-mentioned 21 sensing chamber of outdoor temperature test section, operating letter
Breath is to detect obtained temperature using outdoor temperature test section 21, and the judgement of judging part 32 is detected by outdoor temperature test section 21
To temperature whether be outdoor temperature threshold value hereinafter, when being judged to detecting using outdoor temperature test section 21 in judging part 32
The temperature arrived is in the case of outdoor temperature threshold value is below, and change parts 33 changes the beginning condition of defrosting operating.In this way, passing through
Judge outdoor temperature, can more precisely judge whether to defrost.
Embodiment 2.
Fig. 4 is the block diagram of the control unit 130 for the air-conditioning device 100 for indicating embodiments of the present invention 2.Present embodiment 2
Be in operation information the operating frequency of compressor 6 on this point, it is different from embodiment 1.In present embodiment 2, with reality
It applies 1 identical part of mode to mark reference numeral same as embodiment 1 and omit the description, with the difference with embodiment 1
It is illustrated centered on point.
As shown in figure 4, air-conditioning device 100 has frequency detecting portion 125.Detect the operating of compressor 6 in frequency detecting portion 125
Frequency.In present embodiment 2, operation information is to detect obtained operating frequency using frequency detecting portion 125.Judging part
132 judgements detect whether obtained operating frequency is frequency threshold or more by frequency detecting portion 125.In the operating frequency of compressor 6
In the case of rate is higher, the heat exchange amount in outdoor heat exchanger 8 also increases, so speculating that the upper frost amount of outdoor heat exchanger 8 is corresponding
Increase on ground.In this way, the operating frequency in compressor 6 is higher, it is judged as that frost is attached to the possibility of outdoor heat exchanger 8
It is higher, for ease of implement defrosting operating, when judging part 132 will utilize frequency detecting portion 125 detect obtain operating frequency
In the case that rate is determined as frequency threshold or more, outdoor heat exchange temperature threshold value is changed to hand over than outdoor heat by change parts 133
It changes the high outdoor heat exchange temperature of temperature threshold and mitigates threshold value.
Using present embodiment 2, it is also equipped with the frequency detecting portion 125 of the operating frequency of detection compressor 6, operation information is
Obtained operating frequency is detected using frequency detecting portion 125, the judgement of judging part 132 is obtained by the detection of frequency detecting portion 125
Whether operating frequency is frequency threshold or more, when judging part 132 will utilize frequency detecting portion 125 detect obtain operating frequency
In the case that rate is determined as frequency threshold or more, change parts 133 changes the beginning condition of defrosting operating.In this way, even if will fortune
Transfering the letter breath is set as the operating frequency of compressor 6, also obtains same effect as that of the first embodiment.
Embodiment 3.
Fig. 5 is the block diagram of the control unit 230 for the air-conditioning device 200 for indicating embodiments of the present invention 3.Present embodiment 3
Be in operation information the duration of runs of defrosting operating on this point, it is different from embodiment 1,2.In present embodiment 3, with
Embodiment 1,2 identical parts marks and embodiment 1,2 identical reference numerals and omit the description, with embodiment 1,
It is illustrated centered on 2 difference.
As shown in figure 5, air-conditioning device 200 has time measurement portion 226.Measure the fortune of defrosting operating in time measurement portion 226
Turn the time.In present embodiment 3, operation information is when measuring the operating of obtained defrosting operating using time measurement portion 226
Between.The judgement of judging part 232 by time measurement portion 226 measure obtained duration of runs of previous defrosting operating whether be when
Between it is more than threshold value.The duration of runs in previous defrosting operating is longer, thus it is speculated that for the upper frost amount of outdoor heat exchanger 8
Still increase instantly.In this way, the duration of runs in previous defrosting operating is longer, it is judged as that frost is attached to room
The possibility of external heat exchanger 8 is higher, for ease of implementing defrosting operating, when will utilize time measurement portion 226 in judging part 232
In the case that the duration of runs for the previous defrosting operating that metering obtains is determined as time threshold or more, change parts 233 will
Outdoor heat exchange temperature threshold value is changed to the outdoor heat exchange temperature higher than outdoor heat exchange temperature threshold value and mitigates threshold value.
Using present embodiment 3, it is also equipped with the time measurement portion 226 of the duration of runs of metering defrosting operating, operation information
It is to be measured the obtained duration of runs using time measurement portion 226, the judgement of judging part 232 is obtained by the metering of time measurement portion 226
Duration of runs of previous defrosting operating whether be time threshold or more, when time measurement will be utilized in judging part 232
In the case that the duration of runs for the previous defrosting operating that the metering of portion 226 obtains is determined as time threshold or more, change defrosting
The beginning condition of operating.In this way, even if being obtained and embodiment 1,2 if operation information to be set as to the duration of runs of defrosting operating
Same effect.
Embodiment 4.
Fig. 6 is the block diagram of the control unit 330 for the air-conditioning device 300 for indicating embodiments of the present invention 4.Present embodiment 4
It is different from embodiment 1 on this point control unit 330 has signal judging part 335.In present embodiment 4, with reality
1~embodiment of mode, 3 identical part is applied to mark reference numeral identical with 1~embodiment of embodiment 3 and omit
It is bright, by with illustrated centered on the difference of 1~embodiment of embodiment 3.
As shown in fig. 6, control unit 330 has signal judging part 335.Signal judging part 335 is received from remote controler 4
In the case of stop signal, allow the beginning of defrosting operating, in the case where not receiving stop signal from remote controler 4, makes system
Heat run continues.In addition, in present embodiment 4, the beginning condition of defrosting operating is based on operation information i.e. using outdoor
Temperature detecting part 21 detects obtained temperature and changes, and is not based on the testing result change of body detecting part 24.
In present embodiment 4, in the case where changing the beginning condition of defrosting operating, even if meeting defrosting fortune
In the case of the beginning condition turned, also defrosting operating is made to be in standby.Also, it is received using signal judging part 335
In the case of stop signal, the standby mode of defrosting operating is released, starts defrosting fortune before the operating of air-conditioning device 300 stops
Turn.On the other hand, in the case where signal judging part 335 not being utilized to receive stop signal, the standby shape of defrosting operating is maintained
State, and keeping this state unchangeably makes the operating of air-conditioning device 300 stop.
Fig. 7 is the flow chart of the action for the air-conditioning device 300 for indicating embodiments of the present invention 4.Next, illustrating this reality
Apply the action of the control unit 330 of the air-conditioning device 300 of mode 4.As shown in fig. 7, when starting heating operation, judge by outdoor heat
Whether the temperature that exchange temperature test section 22 detects obtained outdoor heat exchanger 8 is outdoor heat exchange temperature threshold value or less (step
ST11).Temperature in outdoor heat exchanger 8 is ("Yes" of step ST11) below for outdoor heat exchange temperature threshold value, sharp
Switch flow path switching part 7 with switching part 34, starts defrosting operating.
On the other hand, in the case where the temperature of outdoor heat exchanger 8 is more than outdoor heat exchange temperature threshold value (step ST11's
"No"), detect whether obtained temperature is outdoor temperature threshold value or less by outdoor temperature test section 21 in the judgement of judging part 32
(step ST12).(the step in the case where detecting obtained temperature using outdoor temperature test section 21 and being more than outdoor temperature threshold value
The "No" of ST12), judge whether to have received stop signal (step ST13) from remote controler 4 using signal judging part 335.It is connecing
In the case of having received stop signal ("Yes" of step ST13), the operating of air-conditioning device 300 is made to stop.This is because outdoor temperature
Degree is higher, so speculating the not upper frost of outdoor heat exchanger 8.In the case where not receiving stop signal ("No" of step ST13), return
To step ST11.
It is that outdoor temperature threshold value is below detecting obtained temperature using outdoor temperature test section 21 in step ST12
In the case of ("Yes" of step ST12), outdoor heat exchange temperature threshold value is changed to than outdoor heat exchange temperature using change parts 33
It spends the high outdoor heat exchange temperature of threshold value and mitigates threshold value, judge that the outdoor obtained by the detection of outdoor heat exchange temperature test section 22 is changed
Whether the temperature of hot device 8 is that outdoor heat exchange temperature mitigates threshold value or less (step ST14).It is room in the temperature of outdoor heat exchanger 8
In the case of outer heat exchange temperature mitigation threshold value is below ("Yes" of step ST14), judged whether using signal judging part 335
Stop signal (step ST15) is had received from remote controler 4.In the case where having received stop signal ("Yes" of step ST15), profit
So that flow path switching part 7 is switched over switching part 34, starts defrosting operating.Then, the operating of air-conditioning device 300 is made to stop.
In the case where not receiving stop signal ("No" of step ST15), step ST11 is returned to.This is because outdoor temperature is relatively low,
So frost may be gone up by being speculated as outdoor heat exchanger 8.
On the other hand, it is more than (step in the case that outdoor heat exchange temperature mitigates threshold value in the temperature of outdoor heat exchanger 8
The "No" of ST14), judge whether to have received stop signal (step ST16) from remote controler 4 using signal judging part 335.It is connecing
In the case of having received stop signal ("Yes" of step ST16), the operating of air-conditioning device 300 is made to stop.Stop signal is not being received
In the case of ("No" of step ST16), return to step ST11.The reason is that：Although being speculated as since outdoor temperature is relatively low
Outdoor heat exchanger 8 may go up frost, but due to not receiving stop signal, so being speculated as user seeks heating operation.
Using present embodiment 4, air-conditioning device 300 is also equipped with remote controler 4, and the remote controler 4 transmission makes refrigerant circuit 5
The stop signal stopped being operated, control unit 330 also has signal judging part 335, and the signal judging part 335 is from remote controler
In the case that 4 have received stop signal, allow the beginning of defrosting operating, when allowing for defrosting operating in signal judging part 335
Beginning in the case of, switching part 34 makes flow path switching part 7 switch over to start defrosting operating.As a result, user not
When needing heating operation, defrosting operating is energetically carried out, so can ensure the system in the case where needing heating operation again
Thermal energy power.Thus, on the basis of the effect obtained using embodiment 1, moreover it is possible to improve the comfort of user.
In addition, in present embodiment 4, it can also be as embodiment 1, the change of the beginning condition of defrosting operating is less
It is based only upon operation information, the also testing result based on body detecting part 24.In addition, in present embodiment 4, it can also be as implementing
Operation information is set as the operating frequency of compressor 6 by mode 2 like that, can also be set as operation information as embodiment 3
The duration of runs of defrosting operating.
Embodiment 5.
Fig. 8 is the block diagram of the control unit 430 for the air-conditioning device 400 for indicating embodiments of the present invention 5.Present embodiment 5
Judging this point of the permission of defrosting operating according to whether signal judging part 435 has received temperature sensor shutdown signal
On, it is different from embodiment 4.In present embodiment 5, part mark identical with 1~embodiment of embodiment 4 and implementation
1~embodiment of mode, 4 identical reference numeral and omit the description, in being with the difference with 1~embodiment of embodiment 4
The heart illustrates.
As shown in figure 8, control unit 430 has signal judging part 435.Signal judging part 435 is received from indoor unit 3
In the case of temperature sensor shutdown signal, allows the beginning of defrosting operating, do not receiving temperature sensor shutdown signal
In the case of, so that heating operation is continued.In addition, in present embodiment 5, the beginning condition of defrosting operating is based on operation information
Obtained temperature is detected by outdoor temperature test section 21 and is changed, the testing result of body detecting part 24 is not based on and becomes
More.
In present embodiment 5, in the case where changing the beginning condition of defrosting operating, even if meeting defrosting fortune
In the case of the beginning condition turned, also defrosting operating is made to be in standby.Also, it is received using signal judging part 435
In the case of temperature sensor shutdown signal, the standby mode of defrosting operating is released, is stopped in the operating of air-conditioning device 400
Before, start defrosting operating.On the other hand, the case where signal judging part 435 not being utilized to receive temperature sensor shutdown signal
Under, the standby mode of defrosting operating is maintained, keeping this state unchangeably makes the operating of air-conditioning device 400 stop.
Fig. 9 is the flow chart of the action for the air-conditioning device 400 for indicating embodiments of the present invention 5.Next, illustrating this reality
Apply the action of the control unit 430 of the air-conditioning device 400 of mode 5.As shown in figure 9, when starting heating operation, judge by outdoor heat
Whether the temperature that exchange temperature test section 22 detects obtained outdoor heat exchanger 8 is outdoor heat exchange temperature threshold value or less (step
ST21).Temperature in outdoor heat exchanger 8 is ("Yes" of step ST21) below for outdoor heat exchange temperature threshold value, sharp
Switch flow path switching part 7 with switching part 34, starts defrosting operating.
On the other hand, in the case where the temperature of outdoor heat exchanger 8 is more than outdoor heat exchange temperature threshold value (step ST21's
"No"), detect whether obtained temperature is outdoor temperature threshold value or less by outdoor temperature test section 21 in the judgement of judging part 32
(step ST22).(the step in the case where detecting obtained temperature using outdoor temperature test section 21 and being more than outdoor temperature threshold value
The "No" of ST22), judge whether to have received temperature sensor shutdown signal (step from indoor unit 3 using signal judging part 435
ST23).In the case where having received temperature sensor shutdown signal ("Yes" of step ST23), make outdoor unit 2 and indoor unit 3
Operating stop.This is because outdoor temperature is higher, so speculating the not upper frost of outdoor heat exchanger 8.Temperature sensing is not being received
In the case of device shutdown signal ("No" of step ST23), step ST21 is returned to.
It is that outdoor temperature threshold value is below detecting obtained temperature using outdoor temperature test section 21 in step ST22
In the case of ("Yes" of step ST22), outdoor heat exchange temperature threshold value is changed to than outdoor heat exchange temperature using change parts 33
It spends the high outdoor heat exchange temperature of threshold value and mitigates threshold value, judge that the outdoor obtained by the detection of outdoor heat exchange temperature test section 22 is changed
Whether the temperature of hot device 8 is that outdoor heat exchange temperature mitigates threshold value or less (step ST24).It is room in the temperature of outdoor heat exchanger 8
In the case of outer heat exchange temperature mitigation threshold value is below ("Yes" of step ST24), judged whether using signal judging part 435
Temperature sensor shutdown signal (step ST25) is had received from indoor unit 3.The case where having received temperature sensor shutdown signal
Under ("Yes" of step ST25), so that flow path switching part 7 is switched over using switching part 34, start defrosting operating.Then, make room
The operating of outer machine 2 and indoor unit 3 stops.In the case where not receiving temperature sensor shutdown signal (step ST25's
"No"), return to step ST21.This is because outdoor temperature is relatively low, so speculating that outdoor heat exchanger 8 may go up frost.
On the other hand, it is more than (step in the case that outdoor heat exchange temperature mitigates threshold value in the temperature of outdoor heat exchanger 8
The "No" of ST24), judge whether to have received temperature sensor shutdown signal (step from indoor unit 3 using signal judging part 435
ST26).In the case where having received temperature sensor shutdown signal ("Yes" of step ST26), make outdoor unit 2 and indoor unit 3
Operating stop.In the case where not receiving temperature sensor shutdown signal ("No" of step ST26), step ST21 is returned to.Its
The reason is that：It is speculated as outdoor heat exchanger 8 because outdoor temperature is relatively low and may go up frost, but closed due to not receiving temperature sensor
Signal, so being speculated as needing to continue heating operation.
Using present embodiment 5, also there is control unit 430 signal judging part 435, the signal judging part 435 to connect
The temperature sensor shutdown signal that the temperature sensor temporarily ceased when actual room temperature is higher than set temperature is closed is received
In the case of, allow the beginning of above-mentioned defrosting operating, when allow for the beginning of defrosting operating in signal judging part 435 the case where
Under, switching part 34 makes flow path switching part 7 switch over to start defrosting operating.As a result, when not needing heating operation, actively
Ground carries out defrosting operating, so can ensure the system in the case of making heating operation restart by opening by temperature sensor
Thermal energy power.Thus, on the basis of the effect obtained using embodiment 1, moreover it is possible to improve the comfort of user.
In addition, in present embodiment 5, the change of the beginning condition of defrosting operating as embodiment 1, can also be made
It is based not only on operation information, the also testing result based on body detecting part 24.In addition, in present embodiment 5, it can also be as reality
It is such to apply mode 2, operation information is set as to the operating frequency of compressor 6, it can also be as embodiment 3, by operation information
It is set as the duration of runs of defrosting operating.
Reference sign
1, air-conditioning device；2, outdoor unit；3, indoor unit；4, remote controler；4a, remote line；5, refrigerant circuit；6, it compresses
Machine；7, flow path switching part；8, outdoor heat exchanger；8a, outdoor blowers；9, bulge；10, indoor heat exchanger；10a, indoor drum
Wind turbine；21, outdoor temperature test section；22, outdoor heat exchange temperature test section；23, indoor temperature test section；24, human testing
Portion；30, control unit；30a, outdoor control base board；30b, indoor control base board；30c, indoor/outdoor communication lines；31, storage unit；32、
Judging part；33, change parts；34, switching part；100, air-conditioning device；125, frequency detecting portion；130, control unit；132、
Judging part；133, change parts；200, air-conditioning device；226, time measurement portion；230, control unit；232, judging part；
233, change parts；300, air-conditioning device；330, control unit；335, signal judging part；400, air-conditioning device；430, it controls
Portion；435, signal judging part.
Claims (8)
1. a kind of air-conditioning device, wherein
The air-conditioning device includes：
Refrigerant circuit, the refrigerant circuit utilize piping connect compressor, flow path switching part, outdoor heat exchanger, bulge
And indoor heat exchanger, it is flowed for refrigerant；And
Control unit, the control unit controls the action of the refrigerant circuit, to switch heating operation and defrosting operating,
The control unit has：
Judging part, in the case where implementing the heating operation, fortune of the judging part based on the refrigerant circuit
Transfering the letter breath, determines whether the beginning condition for changing the defrosting operating；
Change parts, judgement of the change parts based on the judging part is as a result, change the beginning item of the defrosting operating
Part；And
Switching part, in the case where the beginning condition of the defrosting operating is satisfied, the switching part makes the stream
Road switching part is switched over to start the defrosting operating.
2. air-conditioning device according to claim 1, wherein
The air-conditioning device further includes body detecting part, the presence or absence of described body detecting part's detection human body,
Judgement of the change parts based on the judging part as a result, and based on the testing result of the body detecting part,
Change the beginning condition of the defrosting operating.
3. air-conditioning device according to claim 1, wherein
The air-conditioning device further includes remote controler, and the remote controler sends the stopping letter for making the operating of the refrigerant circuit stop
Number,
Also there is the control unit signal judging part, the signal judging part to have received the stopping from the remote controler
In the case of signal, allow the beginning of the defrosting operating,
In the case of allowing for the beginning of the defrosting operating in the signal judging part, the switching part makes the stream
Road switching part is switched over to start the defrosting operating.
4. air-conditioning device according to claim 1, wherein
Also there is the control unit signal judging part, the signal judging part to compare set temperature in actual room temperature having received
In the case of the temperature sensor shutdown signal that the temperature sensor temporarily ceased when high is closed, allow opening for the defrosting operating
Begin,
In the case of allowing for the beginning of the defrosting operating in the signal judging part, the switching part makes the stream
Road switching part is switched over to start the defrosting operating.
5. air-conditioning device according to any one of claim 1 to 4, wherein
The air-conditioning device further includes outdoor heat exchange temperature test section, and the outdoor heat exchange temperature test section detects the room
The temperature of external heat exchanger,
The beginning condition of the defrosting operating is：The temperature detected using the outdoor heat exchange temperature test section is outdoor
Heat exchange temperature threshold value hereinafter,
In the case where implementing the heating operation, operation information of the change parts based on the refrigerant circuit will
The outdoor heat exchange temperature threshold value is changed to the outdoor heat exchange temperature higher than the outdoor heat exchange temperature threshold value and mitigates threshold
Value.
6. air-conditioning device according to any one of claim 1 to 5, wherein
The air-conditioning device further includes outdoor temperature test section, the temperature outside outdoor temperature test section sensing chamber,
The operation information is the temperature detected using the outdoor temperature test section,
The temperature that judging part judgement is detected by the outdoor temperature test section whether be outdoor temperature threshold value hereinafter,
When being determined as that the temperature detected using the outdoor temperature test section is outdoor temperature threshold value in the judging part
In the case of below, the change parts changes the beginning condition of the defrosting operating.
7. air-conditioning device according to any one of claim 1 to 5, wherein
The air-conditioning device further includes frequency detecting portion, and the operating frequency of the compressor is detected in the frequency detecting portion,
The operation information is the operating frequency detected using the frequency detecting portion,
Whether the operating frequency that the judging part judgement is detected by the frequency detecting portion is frequency threshold or more,
When the operating frequency detected using the frequency detecting portion is determined as frequency threshold or more in the judging part
In the case of, the change parts changes the beginning condition of the defrosting operating.
8. air-conditioning device according to any one of claim 1 to 5, wherein
The air-conditioning device further includes time measurement portion, and the time measurement portion measures the duration of runs of the defrosting operating,
The operation information is the duration of runs measured using the time measurement portion,
Whether the duration of runs for the previous defrosting operating that the judging part judgement is measured by the time measurement portion
More than time threshold,
When in the judging part by the duration of runs for the previous defrosting operating measured using the time measurement portion
In the case of being determined as time threshold or more, the beginning condition of the defrosting operating is changed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/053458 WO2017134807A1 (en) | 2016-02-05 | 2016-02-05 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108603706A true CN108603706A (en) | 2018-09-28 |
| CN108603706B CN108603706B (en) | 2021-03-23 |
Family
ID=59500764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680079374.4A Active CN108603706B (en) | 2016-02-05 | 2016-02-05 | Air conditioner |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180356138A1 (en) |
| EP (1) | EP3412992B1 (en) |
| JP (1) | JP6611829B2 (en) |
| CN (1) | CN108603706B (en) |
| WO (1) | WO2017134807A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458698A (en) * | 2018-11-08 | 2019-03-12 | 珠海格力电器股份有限公司 | Air-conditioning defrosting method and air-conditioning |
| CN112665116A (en) * | 2019-10-16 | 2021-04-16 | 广东美的制冷设备有限公司 | Multi-online defrosting method and device, multi-online air conditioning system and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3698088B1 (en) * | 2017-10-17 | 2024-02-21 | Swegon Operations AB | An air handling unit for a ventilation system in a building and a method for performing a defrosting operation of an air handling unit |
| SE542349E (en) * | 2017-10-17 | 2023-09-12 | Swegon Operations Ab | Method for defrosting of an Air Handling Unit |
| EP3617028A4 (en) * | 2017-12-27 | 2021-01-20 | CRRC Changchun Railway Vehicles Co., Ltd. | Rail train and air conditioning control system thereof |
| JP7199529B2 (en) * | 2019-05-28 | 2023-01-05 | 三菱電機株式会社 | Control device, air environment adjustment system, air environment adjustment method, program, and recording medium |
| CN110173824B (en) * | 2019-05-31 | 2021-05-18 | 广东美的制冷设备有限公司 | Operation control method, control device, air conditioner, and computer-readable storage medium |
| DE102020122996A1 (en) * | 2020-09-03 | 2022-03-03 | Vaillant Gmbh | Method for defrosting a component exposed to the ambient air and devices for carrying out the method |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3412992A1 (en) | 2018-12-12 |
| JPWO2017134807A1 (en) | 2018-09-13 |
| EP3412992B1 (en) | 2024-06-05 |
| CN108603706B (en) | 2021-03-23 |
| EP3412992A4 (en) | 2019-02-13 |
| WO2017134807A1 (en) | 2017-08-10 |
| JP6611829B2 (en) | 2019-11-27 |
| US20180356138A1 (en) | 2018-12-13 |
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