CN106969486A - A kind of air conditioner and its control method for not shutting down defrosting - Google Patents
A kind of air conditioner and its control method for not shutting down defrosting Download PDFInfo
- Publication number
- CN106969486A CN106969486A CN201710192825.1A CN201710192825A CN106969486A CN 106969486 A CN106969486 A CN 106969486A CN 201710192825 A CN201710192825 A CN 201710192825A CN 106969486 A CN106969486 A CN 106969486A
- Authority
- CN
- China
- Prior art keywords
- temperature
- air conditioner
- defrosting
- indoor
- temperature value
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of air conditioner for not shutting down defrosting, including indoor set and outdoor unit；The indoor set includes heat exchanger, and electric heater is provided with the upside of the heat exchanger；The indoor set is provided with control device, and the control device includes temperature detecting module；When air conditioner carries out thermal storage defrosting, start first temperature detecting module, when the indoor tube temperature that the temperature detecting module is detected is less than the first temperature value, then start electric heater；When the indoor tube temperature that the temperature detecting module is detected is more than or equal to the first temperature value, then electric heater is closed.Compared to prior art, the present invention can effectively supplement heating capacity loss during defrosting, reduce heat balance difference, improve and suppress the low effect of room temperature by adding electrical auxiliary heater.
Description
Technical field
The present invention relates to a kind of air conditioner, particularly a kind of air conditioner for not shutting down defrosting；Used the invention further relates to one kind
In the control method of the air conditioner.
Background technology
Air-conditioner defrosting refers to air-conditioning when freezing and heating, and is likely to produce frost, is such as removed after air-conditioning frosting
Frost not in time, will influence the use of air-conditioning.
Existing air conditioner defrosting, general to be defrosted using refrigerating circuit commutation, i.e. refrigeration defrosting.When being defrosted,
Indoor set heats stopping, causing room temperature to decline.
For this phenomenon, current scheme is using outdoor accumulation of heat form, that is, to heat refrigerant.Pass through the mould of thermal storage defrosting
Formula, can realize that defrosting indoor heating does not stop, room temperature is low when inhibiting defrosting to a certain extent.It is specific referring to Fig. 1, its
For the circuit diagram of the outdoor air conditioner provided with regenerative apparatus in the prior art.The existing air conditioner bag with regenerative apparatus
Include the compressor 1a and heat storage tank 5a being disposed in the outdoor, and heat exchanger 2a, indoor fan 3a and the interior being disposed in the interior
Control device 4a.When existing outdoor thermal storage defrosting, though it can reach that indoor heating does not stop in defrosting, due to heating capacity not
Foot.When room area is larger or during room temperature relatively low (wall temperature is low), leaking heat is larger, and the low effect of room temperature is suppressed not during defrosting
Ideal, therefore there are still following technological deficiency：
It is simple when the 1st, defrosting to rely on indoor heating, heating capacity can not active balance leaking heat, room temperature is lowly big.
Due to shortage of heat when the 2nd, defrosting, to pursue higher blowing temp and defrosting effect, indoor rotating speed typically sets relatively low,
Warm wind circulating effect is poor.
The content of the invention
It is an object of the invention to the shortcoming and deficiency for overcoming prior art, there is provided a kind of air conditioner for not shutting down defrosting
And its control method.
The present invention is realized by following scheme：A kind of air conditioner for not shutting down defrosting, including indoor set and outdoor unit；Institute
Stating indoor set includes heat exchanger, and electric heater is provided with the upside of the heat exchanger；The indoor set is provided with control device, the control
Device processed includes temperature detecting module；
When air conditioner carries out thermal storage defrosting, start first temperature detecting module, when temperature detecting module inspection
When the indoor tube temperature measured is less than the first temperature value, then start electric heater；Detected when the temperature detecting module
When indoor tube temperature is more than or equal to the first temperature value, then electric heater is closed.
Compared to prior art, the present invention is by adding electrical auxiliary heater, heating when can effectively supplement defrosting
Amount loss, reduces heat balance difference, improves and suppresses the low effect of room temperature.
As a further improvement on the present invention, the indoor set is provided with indoor fan, when temperature detecting module detection
When the indoor tube temperature arrived is higher than second temperature value, then the indoor fan is controlled to be rotated with the first rotating speed；When described
When the indoor tube temperature that temperature detecting module is detected is less than three temperature values, then the indoor fan is controlled with the second rotating speed
Rotated；The second temperature value is more than the 3rd temperature value.Further, control is adjusted for indoor fan rotating speed, can
To maintain indoor warm wind circulating effect, indoor heating amount and the balance of leaking heat are improved.
Further, first temperature value is more than second temperature value.
Further, first velocity of rotation is more than the second velocity of rotation.
Further, the outdoor unit includes compressor and heat storage tank；When air conditioner carries out thermal storage defrosting, the heat storage tank
Open, performing thermal storage defrosting by the compressor works.
Present invention also offers a kind of control method for the above-mentioned air conditioner for not shutting down defrosting, it includes following step
Suddenly：When air conditioner performs thermal storage defrosting pattern, current indoor pipe arrangement temperature is detected by temperature detecting module, if detect
When indoor tube temperature is less than the first temperature value, then start electric heater；When the indoor tube temperature detected is more than or equal to
During the first temperature value, then electric heater is closed.
Further, in addition to step：When the indoor tube temperature that the temperature detecting module is detected is higher than second temperature
During value, then indoor fan is controlled to be rotated with the first rotating speed；The indoor tube temperature detected when the temperature detecting module
During less than three temperature values, then indoor fan is controlled to be rotated with the second rotating speed；The second temperature value is more than the 3rd temperature
Value.
Further, first temperature value is more than second temperature value.
Further, first velocity of rotation is more than the second velocity of rotation.
Further, when air conditioner performs four-way valve defrosting pattern, electric heater is closed.
In summary, the present invention possesses following beneficial effect：
1st, by adding electrical auxiliary heater, heating capacity loss during defrosting can be effectively supplemented, reduces heat balance
Difference, improves and suppresses the low effect of room temperature.
2nd, indoors more than control device temperature T2 when, indoor higher blowout temperature is ensured to the full extent, improves comfortable
Property effect.
3rd, for indoor fan speed setting, indoor warm wind circulating effect can be maintained, indoor heating amount and leakage heat is improved
The balance of amount.
In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Brief description of the drawings
Fig. 1 is the circuit diagram of the air conditioner of prior art.
Fig. 2 is the circuit diagram of the air conditioner of the present invention.
The schematic diagram for switching control to electric heater in defrosting of Fig. 3 present invention.
The schematic diagram of the rotating speed control to indoor fan of Fig. 4 present invention.
Embodiment
With reference to embodiments and accompanying drawing the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
When being defrosted, air conditioner indoor temperature is low in the prior art and warm wind circulating effect is poor in order to solve by the present invention
Technological deficiency, the invention provides a kind of air conditioner and its control method for not shutting down defrosting.It is of the invention main two sides
Face is improved, and one is improved in structure, and electric heater is added on existing air conditioner room unit.Another,
It is to provide control method for the structure after improvement, so as to solve technological deficiency of the prior art.Below by way of specific reality
Example is applied, technical scheme is introduced.
Referring to Fig. 2, its circuit diagram for the air conditioner of the present invention.Defrosting is not shut down the invention provides a kind of
Air conditioner, including indoor set and outdoor unit.Wherein, the indoor set includes heat exchanger 2, indoor fan 3, the and of control device 4
Electric heater 6.The outdoor unit includes compressor 1 and heat storage tank 5.When air conditioner carries out thermal storage defrosting, the heat storage tank is opened
Open, performing thermal storage defrosting by the compressor works.
Wherein, the device of electrical heating 6 is arranged on the upside of the heat exchanger 2.The air conditioner of the present embodiment has two kinds of defrostings
Pattern, the first is four-way valve defrosting pattern, i.e. refrigeration defrosting, and opening electric heater is not needed in such a mode.Second
It is thermal storage defrosting pattern, needs to carry out auxiliary heating by electric heater 6 in such a mode.
Therefore, it is necessary to be controlled to electric heater 6 in the mode of operation of thermal storage defrosting.In this regard, heretofore described
Control device includes temperature detecting module, and the detection of indoor tube temperature is carried out by temperature detecting module, and by controlling electricity
The working condition of heater 6 realizes the regulation of indoor temperature, specific as follows：
When air conditioner carries out thermal storage defrosting, start first temperature detecting module, when temperature detecting module inspection
When the indoor tube temperature measured is less than the first temperature value T3, then start electric heater；When the temperature detecting module is detected
Indoor tube temperature be more than or equal to the first temperature value T3 when, then close electric heater.In the present embodiment, first temperature
Angle value T3 can be configured according to actual conditions.And preferably, first temperature value T3 is set to 55 DEG C by the present embodiment.
In addition, the present invention also needs to solve when carrying out thermal storage defrosting, the defect of the circulation deficiency of indoor warm wind, therefore need
Indoor fan is controlled, it is specific as follows：
When the indoor tube temperature that the temperature detecting module is detected is higher than second temperature value T2, then the room is controlled
Internal fan is rotated with the first rotating speed R1；When the indoor tube temperature that the temperature detecting module is detected is less than the 3rd temperature
During value T1, then the indoor fan is controlled to be rotated with the second rotating speed R2；The second temperature value T2 is more than the 3rd temperature value
T1.The first temperature value T3 is more than second temperature value T2.The first velocity of rotation R1 is more than the second velocity of rotation R2.
Wherein, by the way that second temperature value T2 and the 3rd temperature value T1 to be set to different numerical value, it can prevent due to temperature
Bounce under critical conditions and cause the bounce of the rotating speed of indoor fan.And second temperature value T2 and the 3rd temperature value T1 temperature
Difference interval is spent, can be interval as the buffering of rotation speed change.In the present embodiment, in order to prevent the second temperature value T2 and
3rd temperature value T1 can be configured according to actual conditions.Such as, second temperature value T2 can be set to 45 DEG C, the 3rd temperature
Angle value T1 is set to 35 DEG C.Wherein, when temperature changes from low temperature toward high-temperature area, it is necessary to when reaching second temperature value T2,
The indoor fan is controlled to be rotated with the first rotating speed R1.And when temperature changes from high-temperature area toward low-temperature region, then need to reach
During the 3rd temperature value T1, just indoor fan is controlled to be rotated with the second rotating speed R2.Specifically, the first rotating speed R1 is root in the present embodiment
According to concrete condition carry out it is any setting and regulation.And the second rotating speed R2 and the first rotating speed R1 difference △, it can be fixedly installed
For 80rpm.
In addition, air conditioner is not shut down according to above-mentioned, present invention also offers a kind of for the above-mentioned sky for not shutting down defrosting
Adjust the control method of device.And mainly include two parts in the control method of the present embodiment, the control and right switched to electric heater
The control of indoor fan rotating speed.Specific method and step is as follows：
Referring to Fig. 3, its schematic diagram for switching control to electric heater in defrosting for the present invention.Specifically, this hair
The workflow of the bright control switched to electric heater is as follows：
Step 1：Judge Defrost mode.If four-way valve defrosting, then the closed mode of electric heater is kept, is then removed
The operating of frost.If thermal storage defrosting, then into step 2.
Step 2：Current indoor pipe arrangement temperature is detected by temperature detecting module, if the indoor tube temperature detected is less than
During the first temperature value T3, then start electric heater；When the indoor tube temperature detected is more than or equal to the first temperature value T3,
Then close electric heater.
Detecting step in repeat step 2, until after defrosting terminates, closing electric heater.
Please refer to Fig. 4, its schematic diagram controlled for the rotating speed to indoor fan of the present invention.In the present invention, also need
The rotating speed of indoor fan is controlled according to indoor temperature.
Specific step：When the indoor tube temperature that the temperature detecting module is detected is higher than second temperature value T2,
Then control indoor fan is rotated with the first rotating speed R1；When the indoor tube temperature that the temperature detecting module is detected is less than
During three temperature values, then indoor fan is controlled to be rotated with the second rotating speed R2.The second temperature value is more than the 3rd temperature value.
Further, first temperature value is more than second temperature value.
Wherein, by the way that second temperature value T2 and the 3rd temperature value T1 to be set to different numerical value, it can prevent due to temperature
Bounce under critical conditions and cause the bounce of the rotating speed of indoor fan.And second temperature value T2 and the 3rd temperature value T1 temperature
Difference interval is spent, can be interval as the buffering of rotation speed change.In the present embodiment, in order to prevent the second temperature value T2 and
3rd temperature value T1 can be configured according to actual conditions.Such as, second temperature value T2 can be set to 45 DEG C, the 3rd temperature
Angle value T1 is set to 35 DEG C.Wherein, when temperature changes from low temperature toward high-temperature area, it is necessary to when reaching second temperature value T2,
The indoor fan is controlled to be rotated with the first rotating speed R1.And when temperature changes from high-temperature area toward low-temperature region, then need to reach
During the 3rd temperature value T1, just indoor fan is controlled to be rotated with the second rotating speed R2.Specifically, the first rotating speed R1 is root in the present embodiment
According to concrete condition carry out it is any setting and regulation.And the second rotating speed R2 and the first rotating speed R1 difference △, it can be fixedly installed
For 80rpm.
Compared to prior art, the present invention possesses following beneficial effect：
1st, by adding electrical auxiliary heater, heating capacity loss during defrosting can be effectively supplemented, reduces heat balance
Difference, improves and suppresses the low effect of room temperature.
2nd, indoors more than control device temperature T2 when, indoor higher blowout temperature is ensured to the full extent, improves comfortable
Property effect.
3rd, for indoor fan speed setting, indoor warm wind circulating effect can be maintained, indoor heating amount and leakage heat is improved
The balance of amount.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of air conditioner for not shutting down defrosting, including indoor set and outdoor unit；It is characterized in that：The indoor set includes heat and handed over
Parallel operation, is provided with electric heater on the upside of the heat exchanger；The indoor set is provided with control device, and the control device is examined including temperature
Survey module；
When air conditioner carries out thermal storage defrosting, start first temperature detecting module, when the temperature detecting module is detected
Indoor tube temperature be less than the first temperature value when, then start electric heater；The interior detected when the temperature detecting module
When pipe arrangement temperature is more than or equal to the first temperature value, then electric heater is closed.
2. do not shut down the air conditioner of defrosting according to claim 1, it is characterised in that：The indoor set is provided with indoor fan,
When the indoor tube temperature that the temperature detecting module is detected is higher than second temperature value, then the indoor fan is controlled with the
One rotating speed is rotated；When the indoor tube temperature that the temperature detecting module is detected is less than three temperature values, then control
The indoor fan is rotated with the second rotating speed；The second temperature value is more than the 3rd temperature value.
3. do not shut down the air conditioner of defrosting according to claim 2, it is characterised in that：First temperature value is more than the second temperature
Angle value.
4. do not shut down the air conditioner of defrosting according to claim 2, it is characterised in that：First velocity of rotation is more than second
Velocity of rotation.
5. do not shut down the air conditioner of defrosting according to claim 1, it is characterised in that：The outdoor unit includes compressor and storage
Heat channel；When air conditioner carries out thermal storage defrosting, the heat storage tank is opened, and performing thermal storage defrosting by the compressor works.
6. a kind of control method for not shutting down the air conditioner of defrosting described in claim 1-5 any one, it is characterised in that：
Including step：
When air conditioner performs thermal storage defrosting pattern, current indoor pipe arrangement temperature is detected by temperature detecting module, if detecting
Indoor tube temperature be less than the first temperature value when, then start electric heater；When the indoor tube temperature detected is more than or waits
When the first temperature value, then electric heater is closed.
7. do not shut down the control method of the air conditioner of defrosting according to claim 6, it is characterised in that：Also include step：When
When the indoor tube temperature that the temperature detecting module is detected is higher than second temperature value, then indoor fan is controlled with the first rotating speed
Rotated；When the indoor tube temperature that the temperature detecting module is detected is less than three temperature values, then wind in control room
Fan is rotated with the second rotating speed；The second temperature value is more than the 3rd temperature value.
8. do not shut down the control method of the air conditioner of defrosting according to claim 7, it is characterised in that：First temperature value
More than second temperature value.
9. do not shut down the control method of the air conditioner of defrosting according to claim 7, it is characterised in that：Described first rotates speed
Degree is more than the second velocity of rotation.
10. do not shut down the control method of the air conditioner of defrosting according to claim 6, it is characterised in that：When air conditioner is performed
During four-way valve defrosting pattern, electric heater is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192825.1A CN106969486A (en) | 2017-03-28 | 2017-03-28 | A kind of air conditioner and its control method for not shutting down defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192825.1A CN106969486A (en) | 2017-03-28 | 2017-03-28 | A kind of air conditioner and its control method for not shutting down defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969486A true CN106969486A (en) | 2017-07-21 |
Family
ID=59335722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710192825.1A Pending CN106969486A (en) | 2017-03-28 | 2017-03-28 | A kind of air conditioner and its control method for not shutting down defrosting |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270420A (en) * | 2017-07-24 | 2017-10-20 | 美的集团武汉制冷设备有限公司 | The control method of air conditioner, the control device of air conditioner and air conditioner |
| CN107894061A (en) * | 2017-10-23 | 2018-04-10 | 合肥美的暖通设备有限公司 | Fresh air conditioner-mechanical, defrosting method and computer-readable recording medium |
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| JPS59145437A (en) * | 1984-02-01 | 1984-08-20 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioning device |
| CN101957110A (en) * | 2010-07-02 | 2011-01-26 | 海信科龙电器股份有限公司 | Method for defrosting heat pump air conditioner using parallel flow heat exchanger |
| JP2013072621A (en) * | 2011-09-29 | 2013-04-22 | Panasonic Corp | Air conditioner |
| CN104990321A (en) * | 2015-06-30 | 2015-10-21 | 广东美的制冷设备有限公司 | Air conditioner and defrosting method thereof |
| CN105674519A (en) * | 2014-11-17 | 2016-06-15 | 青岛海尔空调器有限总公司 | Air conditioning system and defrosting control method |
| CN105972772A (en) * | 2016-05-30 | 2016-09-28 | 广东美的制冷设备有限公司 | Defrosting control method and device for air conditioner |
| CN106403205A (en) * | 2016-11-29 | 2017-02-15 | 广东美的制冷设备有限公司 | Air-conditioner defrosting system and defrosting control method |
-
2017
- 2017-03-28 CN CN201710192825.1A patent/CN106969486A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145437A (en) * | 1984-02-01 | 1984-08-20 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioning device |
| CN101957110A (en) * | 2010-07-02 | 2011-01-26 | 海信科龙电器股份有限公司 | Method for defrosting heat pump air conditioner using parallel flow heat exchanger |
| JP2013072621A (en) * | 2011-09-29 | 2013-04-22 | Panasonic Corp | Air conditioner |
| CN105674519A (en) * | 2014-11-17 | 2016-06-15 | 青岛海尔空调器有限总公司 | Air conditioning system and defrosting control method |
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| CN105972772A (en) * | 2016-05-30 | 2016-09-28 | 广东美的制冷设备有限公司 | Defrosting control method and device for air conditioner |
| CN106403205A (en) * | 2016-11-29 | 2017-02-15 | 广东美的制冷设备有限公司 | Air-conditioner defrosting system and defrosting control method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270420A (en) * | 2017-07-24 | 2017-10-20 | 美的集团武汉制冷设备有限公司 | The control method of air conditioner, the control device of air conditioner and air conditioner |
| CN107270420B (en) * | 2017-07-24 | 2020-09-18 | 美的集团武汉制冷设备有限公司 | Control method and device of air conditioner and air conditioner |
| CN107894061A (en) * | 2017-10-23 | 2018-04-10 | 合肥美的暖通设备有限公司 | Fresh air conditioner-mechanical, defrosting method and computer-readable recording medium |
| CN107894061B (en) * | 2017-10-23 | 2020-04-17 | 合肥美的暖通设备有限公司 | Fresh air conditioner, defrosting method and computer readable storage medium |
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Application publication date: 20170721 |