CN208671271U - Defroster and air-conditioning - Google Patents
Defroster and air-conditioning Download PDFInfo
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- CN208671271U CN208671271U CN201820981750.5U CN201820981750U CN208671271U CN 208671271 U CN208671271 U CN 208671271U CN 201820981750 U CN201820981750 U CN 201820981750U CN 208671271 U CN208671271 U CN 208671271U
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Abstract
This application discloses a kind of defroster and air-conditioning, defroster includes: electric heater unit, is heated for heat exchanging device；Solar power generation component, connect with electric heater unit, to power to electric heater unit.Defroster and air-conditioning provided by the present application to provide electric energy to electric heater unit, and then reduce the consumption of public electric energy by converting solar energy into electrical energy using solar power generation component.
Description
Technical field
The utility model relates generally to conditioner technical field more particularly to defroster and air-conditioning.
Background technique
With people in summer to the promotion of refrigeration demand and the indoor promotion required heating in winter, air-conditioning and sky
The frequency of use of air supply heat pump and time are also higher and higher.However, air-conditioning and air source heat pump can generate knot when in use
White phenomenon, and then influence the service performance of air-conditioning and air source heat pump.By taking air-conditioning as an example, air-conditioning is in refrigeration or heating operations
In, heat exchanger can be poor with external air formation temperature, due to containing moisture in air and humidity is larger, and then leads to air
In moisture can form water droplet on the fin of heat exchanger, and form frost as temperature reduction reaches freezing point and even freeze
Phenomenon.The refrigeration and heating effect of air-conditioning can be reduced by occurring frost in heat exchanger, and then influence indoor comfort level.
Existing Defrost mode is that indoor unit is shut down, and send by the refrigerant antiport of compressor to refrigeration side, utilizes
The heat of refrigerant band carries out defrosting.Such defrosting mode power consumption is big, while indoor temperature should not guarantee, reduces indoor relax
The Energy Efficiency Ratio of appropriateness, integral air conditioner reduces.
Utility model content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of defroster and air-conditioning.
The application provides a kind of defroster, comprising:
Electric heater unit is heated for heat exchanging device；
Solar power generation component, connect with electric heater unit, to power to electric heater unit.
Further, defroster further include: temperature sensor, for obtaining the first temperature value of heat exchanger；
Comparator is connect with temperature sensor, for the first temperature value to be compared with preset first temperature threshold；
Controller is connect with comparator, electric heater unit respectively, for when the first temperature value is less than the first temperature threshold
Control electric heater unit heat exchanging device is heated.
Further, defroster further include:
Timer is connect with controller, for obtaining the heating time of electric heater unit heat exchanging device；
Temperature sensor is also used to obtain second temperature value of the heat exchanger after being heated preset heating time；
Comparator is also used to for second temperature value being compared with preset second temperature threshold value；
Controller is also used to the control electric heater unit heat exchanging device when second temperature value is less than second temperature threshold value and carries out
It heats again.
Further, defroster further include:
Warning device is connect with controller, for issuing alarm signal；
Counter is connect with controller, the heating times continuously applied for obtaining electric heater unit heat exchanging device；
Temperature sensor is also used to obtain third temperature value of the heat exchanger after being heated continuously preset heating times；
Comparator is also used to for third temperature value being compared with preset third temperature threshold；
Controller is also used to the control warning device when third temperature value is less than third temperature threshold and issues alarm signal.
Further, electric heater unit includes electric heating tube or heating wire flexible.
Further, solar power generation component is thin-film solar cells.
The application also provides a kind of air-conditioning, including outer machine, is equipped with heat exchanger in outer machine, further includes above-mentioned defroster.
Further, heat exchanger includes fin and the heat exchanger tube that is arranged in fin；Electric heater unit includes flexible
Electric heating tube or heating wire, electric heating tube or heating wire are arranged in fin along the direction that wears of heat exchanger tube.
Further, outer machine is equipped with air inlet, and solar power generation component is fixedly installed on outer machine or carries outer machine
Wall on, and close to air inlet be arranged.
Further, outer machine includes casing, is respectively equipped with air outlet and opening portion on two opposite sides on casing,
And heat exchanger is between opening portion and air outlet；
More than two temperature sensors are equipped in defroster, more than two temperature sensors are all set to heat exchanger
On, and it is located at the region in corresponding opening portion on heat exchanger.
Defroster and air-conditioning provided by the present application, by converting solar energy into electricity using solar power generation component
Can, to provide electric energy to electric heater unit, and then reduce the consumption of public electric energy.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the structural framing figure of defroster provided by the embodiments of the present application；
Fig. 2 is outer machine structure schematic elevation view provided by the embodiments of the present application；
Fig. 3 is outer machine structure schematic side view provided by the embodiments of the present application；
Fig. 4 is the schematic view of the mounting position of electric heating tube provided by the embodiments of the present application or heating wire in fin；
Fig. 5 is that the side view of the installation site of electric heating tube provided by the embodiments of the present application or heating wire in fin is illustrated
Figure；
Fig. 6 is casing structure schematic rear view provided by the embodiments of the present application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.It further needs exist for illustrating
, part relevant to utility model is illustrated only for ease of description, in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Attached drawing 1 is please referred to, the embodiment of the present application provides a kind of defroster, comprising:
Electric heater unit 1 is heated for heat exchanging device 9；
Solar power generation component 2 is connect with electric heater unit 1, to power to electric heater unit 1.
In the present embodiment, heat exchanger 9 is such as, but not limited to finned heat exchanger, and finned heat exchanger generally comprises fin 91
And it is arranged in the heat exchanger tube 92 in fin 91.Solar power generation component 2 can convert solar energy into electrical energy, to fill to electric heating
1 offer electric energy is set, so that electric heater unit 1 is without consuming public electric energy.Electric heater unit 1 is in solar power generation component 2
Power supply under can heat exchanging device 9 heated, heating target can be the fin 91 and/or heat exchanger tube 92 in heat exchanger 9.Pass through
Heat exchanging device 9 heats, and can avoid or eliminates the frost on heat exchanger 9, and then ensures the refrigeration or heating effect of air-conditioning.
In certain preferred embodiments, defroster further include:
Temperature sensor 3, for obtaining the first temperature value of heat exchanger 9；
Comparator 7 is connect with temperature sensor 3, for comparing the first temperature value and preset first temperature threshold
Compared with；
Controller 4 is connect with comparator 7, electric heater unit 1 respectively, is used in the first temperature value less than the first temperature threshold
1 heat exchanging device 9 of electric heater unit is controlled when value to be heated.
In this preferred embodiment, temperature sensor 3 is set in heat exchanger 9, for obtaining the temperature of heat exchanger 9
Value, and the temperature value is the first temperature value.Comparator 7 is used for according to the first temperature value and preset first temperature threshold received
Value is compared, and controller 4 is used to control 1 heat exchanging device 9 of electric heater unit when the first temperature value is less than the first temperature threshold
It is heated.Wherein, when the first temperature value is lower than preset first temperature threshold, illustrate that the temperature of heat exchanger 9 is very low, air
In moisture be easy the frosting on heat exchanger 9.It is heated automatically by 1 heat exchanging device 9 of electric heater unit, can avoid or eliminate
Frost on heat exchanger 9, and then ensure the refrigeration or heating effect of air-conditioning.
First temperature threshold can be preferably -10 DEG C between -20 DEG C~-5 DEG C.The size of first temperature threshold can basis
Defroster local environment situation carries out adaptive settings.
In certain preferred embodiments, defroster further includes timer 6, is connect with controller 4, is added for obtaining electricity
The heating time of 1 heat exchanging device 9 of thermal；
Temperature sensor 3 is also used to obtain second temperature value of the heat exchanger 9 after being heated preset heating time；
Comparator 7 is also used to for second temperature value being compared with preset second temperature threshold value；
Controller 4 be also used to second temperature value be less than second temperature threshold value when control 1 heat exchanging device 9 of electric heater unit into
Row heats again.
In this preferred embodiment, heating time of the timer 6 for heat exchanging device 9 carries out timing, is added with obtaining electricity
The heating time of 1 heat exchanging device 9 of thermal.Stop heating after the time of heating reaching preset heating time.Electric heater
Heat exchanging device 9 is heated within preset heating time, and temperature sensor 3 obtains the temperature value of the heat exchanger 9 after heating, and
The temperature value is second temperature value.Comparator 7 is compared according to the second temperature value of acquisition with preset second temperature threshold value,
When second temperature value is less than second temperature threshold value, illustrate that the heating of this heat exchanging device 9 of electric heater unit 1 can not be effectively
It carries out defrosting or defrosting effect is unobvious, heat exchanging device 9 is needed to be heated again.
Second temperature threshold value can be preferably -5 DEG C between -5 DEG C~0 DEG C.The size of second temperature threshold value can be according to defrosting
Device local environment situation carries out adaptive settings.
Preset heating time can be 10-15min.The size of heating time can be according to the big of the power of electric heater unit 1
Small carry out adaptive settings
In certain preferred embodiments, defroster further include:
Warning device 5 is connect, for issuing alarm signal with controller 4；
Counter 10 is connect with controller 4, for obtaining the heating time that 1 heat exchanging device 9 of electric heater unit continuously applies
Number；
Temperature sensor 3 is also used to obtain third temperature value of the heat exchanger 9 after being heated continuously preset heating times；
Comparator 7 is also used to for third temperature value being compared with preset third temperature threshold；
Controller 4 is also used to the control warning device 5 when third temperature value is less than third temperature threshold and issues alarm signal.
In this preferred embodiment, alarm signal can be photosignal and/or voice signal, so that user of service is timely
It was found that and defrosted manually, prevent heat exchanger tube 92 occur bursting by freezing situation, improve 9 service life of heat exchanger.Warning device 5 is preferred
But be not limited to combined aural and visual alarm etc..
Counter 10 is for obtaining the heating times that 1 heat exchanging device 9 of electric heater unit continuously applies.In defrosting process every time
In, at least need heat exchanging device 9 to carry out primary heating, if the temperature value of the heat exchanger 9 after heating for the first time is still less than the second temperature
Meeting heat exchanging device 9 carries out secondary heating when spending threshold value, to form laser heating, until defrosting, which is automatically performed or informs, to be made
It is defrosted manually with personnel, so the heating times that heat exchanging device 9 continuously applies herein can be regarded as defrosting every time
The heating times that heat exchanging device 9 applies in journey.
When heat exchanger 9 is when the number being heated continuously reaches preset heating times, and third temperature value is still less than
When preset third temperature threshold, illustrate that the frost layer on heat exchanger 9 is difficult to remove automatically or heat exchanger 9 is likely to occur problem,
Controller 4 controls warning device 5 and issues above-mentioned alarm signal at this time.
Preset heating times are preferably 2-4 times.Certainly, according to the size of preset heating time can to heating times into
Row adaptive settings.
Third temperature threshold can be preferably -5 DEG C between -5 DEG C~0 DEG C.The size of third temperature threshold can be according to defrosting
Device local environment situation carries out adaptive settings.
In certain preferred embodiments, include: in defroster
More than two temperature sensors 3, for obtaining the temperature value of different location on heat exchanger 9；
Comparator 7 is also used to for the temperature value that multiple temperature sensors 3 obtain being compared, to obtain lowest temperature angle value,
First temperature value, second temperature value or third temperature value are all corresponding lowest temperature angle value.
In this preferred embodiment, more than two temperature sensors 3 are equipped in defroster, for measuring heat exchange
The temperature value of 9 different location of device, to improve the measurement accuracy of 9 temperature value of heat exchanger.Wherein, more than two temperature sensors 3
The more than two temperature values obtained are compared by comparator 7, to obtain lowest temperature angle value, and the first temperature value, the second temperature
Angle value or third temperature value are all corresponding lowest temperature angle value.Such as: it is determined whether to enable when electric heater unit 1, pass through ratio
The more than two temperature values for obtaining temperature sensor 3 compared with device 7 are compared, to obtain the first temperature value, by the first temperature
Value is compared with the first temperature threshold；When judging whether to need continuous heating, temperature sensor 3 is existed by comparator 7
Temperature value is compared after being heated preset heating times, to obtain second temperature value, by second temperature value and second temperature
Threshold value is compared；When judging whether alarm, temperature sensor 3 is obtained by heat exchanger 9 by comparator 7 and is continuously being added
Temperature value is compared after the preset heating times of heat, to obtain third temperature value, by third temperature value and third temperature threshold
It is compared.
In certain preferred embodiments, electric heater unit 1 includes electric heating tube 11 flexible or heating wire.
In this preferred embodiment, electric heater unit 1 can be electric heating tube 11 or heating wire, wherein electric heating tube 11
Or the heat that heating wire generates after powered up can be conducted to heat exchanger 9, to realize that heat exchanging device 9 is heated.
Electric heating tube 11 or heating wire are flexible structure, it can be achieved that electric heating tube 11 or heating wire can in heat exchanger 9
Bending setting, be not only convenient for electric heating tube 11 perhaps installation of the heating wire in heat exchanger 9 and can increase electric heating tube 11 or
The heating location of heating wire heat exchanging device 9, to improve the being heated evenly property of heat exchanger 9.
In addition, the power lug of electric heater unit 1 uses grafting joint form, it is convenient for wiring.
In certain preferred embodiments, solar power generation component 2 is thin-film solar cells.
In this preferred embodiment, thin-film solar cells has that flexible, light weight, dim light be good, color
It the advantages that adjustable, shape-plastic, adapts in outdoor machine of air-conditioner 88 use.Wherein, thin-film solar cells can be thin for amorphous silicon
Film solar cell, copper-indium-galliun-selenium film solar cell, cadmium telluride diaphragm solar battery, gallium arsenide film solar-electricity
One of pond, dye-sensitized solar cells and organic flexible solar battery are a variety of.
Certainly, in certain applications, solar power generation component 2 can also be the solar battery sheet of rigidity, such as brilliant
Body silicon solar cell.
Attached drawing 2-3 is please referred to, the embodiment of the present application also provides a kind of air-conditioning, including outer machine 8, is equipped with heat exchanger in outer machine 8
9, it further include above-mentioned defroster.
In the present embodiment, air-conditioning includes outer machine 8, and outer machine 8 is generally mounted to outdoor.Outer machine 8 includes casing 81, Yi Jishe
The heat exchanger 9 being placed in casing 81.Electric heater unit 1 in defroster can heat exchanging device 9 heated, to avoid or eliminate
Frost on heat exchanger 9, and then ensure the refrigeration or heating effect of air-conditioning.
In certain preferred embodiments, heat exchanger 9 includes fin 91；Electric heater includes electric heating tube 11 or electric heating
Silk, electric heating tube 11 or heating wire are arranged in fin 91.
In this preferred embodiment, the fin 91 in heat exchanger 9 is equipped with mounting hole, and electric heating tube 11 or heating wire are worn
It in mounting hole, is conducted heat on fin 91 with realizing, temperature increases after fin 91 is heated, while also conducting heat
To heat exchanger tube 92, so that 92 temperature of heat exchanger tube increases.
Attached drawing 4-5 is please referred to, includes the heat exchange being arranged in fin 91 in heat exchanger 9 in certain preferred embodiments
Pipe 92；Electric heating tube 11 or heating wire are flexible structure, and are arranged in fin 91 along the direction that wears of heat exchanger tube 92.
The bending of heat exchanger tube 92 in heat exchanger 9 is arranged in fin 91, to improve the heat dissipation area of heat exchanger tube 92.It is excellent at this
In the embodiment of choosing, electric heating tube 11 or heating wire are flexible structure, and then can be arranged in wing along the direction that wears of heat exchanger tube 92
In piece 91, so that can all be conducted by the heat from electric heating tube 11 or heating wire on entire heat exchanger tube 92, further increase
The being heated evenly property of heat exchanger 9.
In certain preferred embodiments, outer machine 8 is equipped with air inlet 814, and solar power generation component 2 is fixedly installed on outer
On machine 8 or on the wall of the outer machine 8 of carrying, and it is arranged close to air inlet 814.
In this preferred embodiment, the casing 81 of outer machine 8 is equipped with air inlet 814, and air inlet 814 can be used for heat exchange
External air is conveyed in device 9.Solar power generation component 2 is fixedly installed on outer machine 8, specifically may be provided at the casing of outer machine 8
On 81, and it is arranged close to air inlet 814.Solar power generation component 2 can generate more heat in power generation, which can be to it
It is conducted in the air of surrounding, so that the air themperature at air inlet 814 improves, so that into the sky in heat exchanger 9
Temperature degree is relatively high, further avoids or eliminate the frost on heat exchanger 9.Solar power generation component 2 can be located at casing
81 top, 81 front surface of casing are not only convenient for installation solar power generation component 2, and it is right that solar power generation component 2 also can be improved
The collection capacity of solar energy.It may be provided with mounting hole on the top of casing 81 and the two sides of air outlet 811, in order to solar energy hair
Electrical component 2 is mounted on casing 81.Certainly, solar power generation component 2 can also be also not arranged on exterior object, such as be carried
On the wall of outdoor machine of air-conditioner 8 or on window column etc..
Attached drawing 2 and 6 is please referred to, in certain preferred embodiments, is divided on two opposite sides on the casing 81 of outer machine 8
Not She You air outlet 811 and opening portion 812, and heat exchanger 9 is between opening portion 812 and air outlet 811；
More than two temperature sensors 3 are equipped in defroster, more than two temperature sensors 3 are all set to heat exchange
On device 9, and it is located at the region in corresponding opening portion 812 on heat exchanger 9.
In this preferred embodiment, air outlet 811 and opening are respectively equipped on casing 81 on two opposite sides
Portion 812.Air outlet 811 is for the heat in outer machine 8 to be discharged in the form of wind, and opening portion 812 is for improving heat exchanger 9 and outer
The connection area of portion's environment is to improve the heat dissipation performance of heat exchanger 9.Preferably, air outlet 811 is located at the front of casing 81, opening
Portion 812 is located at the back side of casing 81.Heat exchanger 9 is between opening portion 812 and air outlet 811.The corresponding opening on heat exchanger 9
Air permeability is preferable in the region in portion 812, and then the heat exchanger 9 that may make the temperature sensor 3 being set in the region to measure
Temperature value is more accurate.
Attached drawing 2 is please referred to, the positional relationship of air outlet 811, air inlet 814 and opening portion 812 on casing 81 is as follows:
Air outlet 811 is located at the front surface of casing 81, and opening portion 812 is located at the rear surface of casing 81, and air inlet 814 is located at casing 81
Left side.
In addition, the reinforcing rod 813 for being connected with 81 top and bottom of casing is additionally provided in opening portion 812, to improve casing 81
Structural strength.
It is to be appreciated that such as relate to herein term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, while should also cover in the case where not departing from utility model design, by above-mentioned technical characteristic or its equivalent feature
The other technical solutions for carrying out any combination and being formed.Such as features described above and (but being not limited to) disclosed herein have class
Technical characteristic like function is replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of defroster characterized by comprising
Electric heater unit (1) is heated for heat exchanging device (9)；
Solar power generation component (2) is connect with the electric heater unit (1), to power to the electric heater unit (1).
2. defroster according to claim 1, which is characterized in that further include:
Temperature sensor (3), for obtaining the first temperature value of heat exchanger (9)；
Comparator (7) is connect with the temperature sensor (3), is used for first temperature value and preset first temperature threshold
Value is compared；
Controller (4) is connect with the comparator (7), the electric heater unit (1) respectively, in first temperature value
The electric heater unit (1) heat exchanging device (9) is controlled when less than first temperature threshold to be heated.
3. defroster according to claim 2, which is characterized in that further include
Timer (6) is connect with the controller (4), for obtaining the heating of the electric heater unit (1) heat exchanging device (9)
Time；
The temperature sensor (3) is also used to obtain second temperature value of the heat exchanger (9) after being heated preset heating time；
The comparator (7) is also used to for the second temperature value being compared with preset second temperature threshold value；
The controller (4) is also used to control the electric heating dress when the second temperature value is less than the second temperature threshold value
(1) heat exchanging device (9) is set to be heated again.
4. defroster according to claim 3, which is characterized in that further include:
Warning device (5) is connect, for issuing alarm signal with the controller (4)；
Counter (10) is connect with the controller (4), is continuously applied for obtaining the electric heater unit (1) heat exchanging device (9)
The heating times added；
The temperature sensor (3) is also used to obtain third temperature of the heat exchanger (9) after being heated continuously preset heating times
Angle value；
The comparator (7) is also used to for the third temperature value being compared with preset third temperature threshold；
The controller (4) is also used to control the warning device when the third temperature value is less than the third temperature threshold
(5) alarm signal is issued.
5. defroster according to claim 1, which is characterized in that the electric heater unit (1) includes that electricity flexible adds
Heat pipe (11) or heating wire.
6. defroster described in -5 any one according to claim 1, which is characterized in that the solar power generation component (2)
For thin-film solar cells.
7. a kind of air-conditioning, including outer machine (8), heat exchanger (9) are equipped in the outer machine (8), which is characterized in that further include such as right
It is required that defroster described in 1-6 any one.
8. air-conditioning according to claim 7, which is characterized in that the heat exchanger (9) includes fin (91) and is arranged in
Heat exchanger tube (92) in the fin (91)；The electric heater unit (1) includes electric heating tube flexible (11) or heating wire, institute
Electric heating tube (11) or the heating wire is stated to be arranged in the fin (91) along the direction that wears of the heat exchanger tube (92).
9. air-conditioning according to claim 7, which is characterized in that the outer machine (8) be equipped with air inlet (814), it is described too
Positive energy electrification component (2) is fixedly installed on the outer machine (8) or on the wall of the carrying outer machine (8), and close to described
Air inlet (814) setting.
10. according to air-conditioning described in claim 7-9 any one, which is characterized in that the outer machine (8) includes casing (81),
Air outlet (811) and opening portion (812), and the heat exchanger are respectively equipped on the casing (81) on two opposite sides
(9) between the opening portion (812) and the air outlet (811)；
More than two temperature sensors (3) are equipped in the defroster, more than two temperature sensors (3) all set
It is placed on the heat exchanger (9), and is located at the region for corresponding to the opening portion (812) on the heat exchanger (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820981750.5U CN208671271U (en) | 2018-06-25 | 2018-06-25 | Defroster and air-conditioning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820981750.5U CN208671271U (en) | 2018-06-25 | 2018-06-25 | Defroster and air-conditioning |
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| Publication Number | Publication Date |
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| CN208671271U true CN208671271U (en) | 2019-03-29 |
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| CN201820981750.5U Active CN208671271U (en) | 2018-06-25 | 2018-06-25 | Defroster and air-conditioning |
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| CN110470024A (en) * | 2019-08-04 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110470025A (en) * | 2019-08-04 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110470025B (en) * | 2019-08-04 | 2021-12-21 | 重庆海尔空调器有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470021B (en) * | 2019-08-04 | 2021-12-21 | 重庆海尔空调器有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470022B (en) * | 2019-08-04 | 2021-12-21 | 重庆海尔空调器有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470024B (en) * | 2019-08-04 | 2021-12-21 | 重庆海尔空调器有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470022A (en) * | 2019-08-04 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110470023B (en) * | 2019-08-04 | 2022-03-29 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
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