CN111578773A - Air conditioner and cleaning method thereof - Google Patents
Air conditioner and cleaning method thereof Download PDFInfo
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- CN111578773A CN111578773A CN202010283344.3A CN202010283344A CN111578773A CN 111578773 A CN111578773 A CN 111578773A CN 202010283344 A CN202010283344 A CN 202010283344A CN 111578773 A CN111578773 A CN 111578773A
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- heat exchanger
- compressor
- temperature
- cleaning
- air conditioner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention relates to the technical field of household appliances, in particular to an air conditioner and a cleaning method thereof, which comprises the steps of spraying water to a heat exchanger to flush the heat exchanger; when the temperature of the heat exchanger is outside a preset temperature threshold value, a first control instruction for controlling the compressor to enter a refrigeration mode or a heating mode is sent to the compressor, the preset temperature threshold value is an effective use temperature range of cleaning liquid for washing the heat exchanger, in addition, the invention improves the cleaning efficiency of the heat exchanger by spraying and washing the heat exchanger, and simultaneously, the temperature of the heat exchanger is detected and the compressor is controlled to enter the refrigeration mode or the heating mode to reduce or increase the temperature of the heat exchanger to the effective use temperature range for cleaning the sprayed cleaning liquid, thereby further improving the cleaning efficiency and the cleaning effect of the heat exchanger, and avoiding the problems of poor cleaning efficiency and poor cleaning effect caused by slow defrosting water flow.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an air conditioner and a cleaning method thereof.
Background
At present, the self-cleaning function of the air conditioner commonly used in the market is to clean dust and bacteria on a heat exchanger by adopting a technology of freezing firstly and then defrosting, but because the water flow formed by defrosting is slow, the cleaning effect in actual use is not ideal.
Disclosure of Invention
The invention aims to improve the cleaning effect and efficiency of the heat exchanger and reduce the accumulation of dust and bacteria on the heat exchanger.
In order to achieve the above object, the present invention provides an air conditioner cleaning method, comprising:
spraying a heat exchanger to flush the heat exchanger;
when the temperature of the heat exchanger is out of a preset temperature threshold value, sending a first control instruction for controlling the compressor to enter a refrigeration mode or a heating mode to the compressor, wherein the preset temperature threshold value is an effective use temperature range of cleaning liquid for flushing the heat exchanger.
Optionally, when the temperature of the heat exchanger obtained by the controller is outside a preset temperature threshold, the controller calculates a clean operation frequency of the compressor when the temperature of the heat exchanger is increased or decreased to the preset temperature threshold, and sends a second control instruction for controlling the frequency of the compressor to be increased or decreased to the clean operation frequency to the compressor.
Optionally, after the heat exchanger is flushed, the controller obtains the temperature of the heat exchanger, calculates the drying operation frequency of the compressor when the temperature of the heat exchanger is increased or decreased to the drying temperature, and sends a third control instruction for controlling the frequency of the compressor to be increased or decreased to the drying operation frequency to the compressor.
Optionally, the method further includes: and in the process that the spraying device sprays water to the heat exchanger, the controller controls and starts the drainage pump to discharge sewage generated after the heat exchanger is cleaned.
Optionally, the method further includes: and the controller controls the water suction pump to pump cleaning liquid to the heat exchanger for flushing.
The present invention also provides an air conditioner, comprising:
a heat exchanger;
the compressor is used for providing corresponding energy to control the temperature of the heat exchanger;
the spraying device is used for spraying cleaning water to the heat exchanger to clean the heat exchanger;
and the controller is electrically connected with the compressor and used for acquiring the temperature of the heat exchanger and controlling the working mode and the running frequency of the compressor so as to adjust the temperature of the heat exchanger, wherein the working mode comprises a cooling mode and a heating mode.
Optionally, the spraying device comprises a water pump for pumping cleaning liquid, and the water pump is electrically connected with the controller.
Optionally, the spraying device further comprises a spraying pipe connected with the water suction pump, and the spraying pipe is provided with a plurality of spraying holes.
Optionally, the system further comprises a drain pump for draining the sewage generated after the heat exchanger is cleaned, and the drain pump is electrically connected with the controller.
Optionally, the controller includes a control unit, a temperature detection circuit for detecting the temperature of the heat exchanger, a compressor control circuit for controlling the compressor, and a water pump control circuit for controlling the water pump and the drain pump.
The embodiment of the invention has the following technical effects:
according to the invention, the cleaning efficiency of the heat exchanger is improved by spraying and washing the heat exchanger, meanwhile, the temperature of the heat exchanger is detected and the compressor is controlled to enter a refrigeration mode or a heating mode, so that the temperature of the heat exchanger is reduced or increased to the effective use temperature range for cleaning the sprayed cleaning solution, the cleaning efficiency is further improved, the cleaning effect of the heat exchanger is improved, and the problems of poor cleaning efficiency and poor cleaning effect caused by slow defrosting water flow are avoided.
Drawings
FIG. 1 is a flow chart illustrating a method for cleaning an air conditioner in accordance with a preferred embodiment of the present invention;
fig. 2 is a block diagram of an air conditioner in accordance with a preferred embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the arrangement of the shower pipe and the heat exchanger in the preferred embodiment of the invention;
FIG. 4 is a schematic structural diagram of the arrangement of the shower pipe and the heat exchanger in another preferred embodiment of the invention;
FIG. 5 is a graph of compressor operating frequency as a function of temperature differential Δ T during a flushing operation in accordance with a preferred embodiment of the present invention;
FIG. 6 is a graph of compressor operating frequency as a function of temperature differential Δ T for a compressor drying a heat exchanger after flushing is complete in a preferred embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention discloses an air conditioner cleaning method, including:
step s 1: spraying to the heat exchanger 2 to flush the heat exchanger 2;
step s 2: when the temperature of the heat exchanger 2 is outside a preset temperature threshold, a first control instruction for controlling the compressor 3 to enter a refrigeration mode or a heating mode is sent to the compressor 3, and the preset temperature threshold is an effective use temperature range of cleaning liquid for washing the heat exchanger 2.
The preset temperature threshold value can be determined through the effective use temperature range of the cleaning liquid sprayed by the spraying device in different environments.
According to the scheme disclosed by the invention, the cleaning efficiency of the heat exchanger 2 is improved by spraying and washing the heat exchanger 2, meanwhile, the temperature of the heat exchanger 2 is detected and the working mode of the compressor 3 is controlled to enter the refrigeration mode or the heating mode, so that the temperature of the heat exchanger 2 is reduced or increased to the effective use temperature range for cleaning the sprayed cleaning solution, the cleaning efficiency is further improved, the cleaning effect of the heat exchanger 2 is improved, and the problems of poor cleaning efficiency and poor cleaning effect caused by slow defrosting water flow are solved.
In this embodiment, the temperature of the heat exchanger 2 that controller 1 obtained is the temperature of the coil pipe in the heat exchanger 2, and the comparatively accurate holistic surface temperature of heat exchanger 2 that has reacted, and the temperature of coil pipe can be faster adjusts through adjusting compressor 3, provides work efficiency.
In one embodiment, when the controller 1 obtains that the temperature T1 of the heat exchanger 2 is outside the preset temperature threshold T2, the controller 1 calculates the cleaning operation frequency F1 of the compressor 3 when the temperature T1 of the heat exchanger 2 is increased or decreased to the preset temperature threshold T2, and sends a second control instruction for controlling the frequency of the compressor 3 to be increased or decreased to the cleaning operation frequency to the compressor 3.
Wherein, the temperature difference between T1 and T2 is △ T, the cleaning operation frequency F1 is F, △ T is X, a and b are correction coefficients of the heat exchanger 2, and the function F1 is aX2+ b, there is a curve as shown in fig. 5.
Specifically, because contain corresponding mould in the cleaning solution, the activity of mould is also different under different temperature environment, and when making the cleaning solution contact with heat exchanger 2 through the temperature of adjusting heat exchanger 2, the mould in the cleaning solution is in suitable ambient temperature, has higher activity to improve the clean effect and the clean efficiency of heat exchanger 2.
The controller 1 controls the clean operation frequency F1 of the compressor 3, so that the compressor 3 generates corresponding heat to increase or decrease the temperature of the heat exchanger 2 to the preset temperature threshold T2, and the accuracy and efficiency of the temperature control of the heat exchanger 2 are improved.
It will be appreciated that the first control command and the second control command can be generated simultaneously as a packet one and sent to the compressor 3 to effect control of the operating mode of the compressor 3 and the frequency of the cleaning operation.
In one embodiment, when the flushing of the heat exchanger 2 is completed, the controller 1 obtains the temperature T1 of the heat exchanger 2, the controller 1 calculates the drying operation frequency F2 of the compressor 3 when the temperature T1 of the heat exchanger 2 is increased or decreased to the drying temperature T3, and sends a third control command for controlling the frequency of the compressor 3 to be increased or decreased to the drying operation frequency F2 to the compressor 3.
Wherein, the temperature difference between T1 and T3 is △ T, the drying operation frequency F2 is F, △ T is X, a and b are correction coefficients of the heat exchanger 2, and the function F, 2 is aX2+ b, there is a curve as shown in FIG. 6.
The cleaned heat exchanger 2 is dried quickly at the preset drying temperature T3, and the cleaning efficiency is improved.
Specifically, the controller 1 calculates the obtained temperature of the heat exchanger 2 and a preset temperature threshold to obtain a working mode and an operating frequency of the corresponding compressor 3, so as to generate a first control instruction and a second control instruction;
the controller 1 calculates the obtained temperature value of the heat exchanger 2 and the drying temperature value to obtain the operating frequency of the corresponding compressor 3, so as to generate a third control instruction.
Further, in order to improve the cleaning effect of the heat exchanger 2, the method further comprises the following steps: in the process that the spraying device sprays water to the heat exchanger 2, the controller 1 controls the opening of the drainage pump 6 to discharge sewage generated after the heat exchanger 2 is cleaned, the generated sewage is discharged in time, and secondary pollution of the heat exchanger 2 caused by accumulation of the sewage is avoided.
Further, the method further comprises: controller 1 control suction pump 4 extracts the cleaning solution and washes to heat exchanger 2, forms high-pressure water injection through suction pump 4 to drawing water the pressurization and washes heat exchanger 2, improves the clean effect of washing to heat exchanger 2.
Referring to fig. 2 to 4, as another aspect of the present disclosure, an air conditioner is disclosed, including:
the heat exchanger 2 is used for cleaning the cleaning liquid within a preset temperature threshold range through the compressor 3 at a corresponding temperature while being cleaned through the spraying device;
the controller 1 is electrically connected with the compressor 3 and is used for acquiring the temperature of the heat exchanger 2 and controlling the working mode and the running frequency of the compressor 3 to adjust the temperature of the heat exchanger 2, wherein the working mode comprises a refrigerating mode and a heating mode;
the compressor 3 is used for providing corresponding energy to control the temperature of the heat exchanger 2, wherein when the temperature of the heat exchanger 2 is out of a preset temperature threshold, the controller 1 sends a first control instruction for controlling the compressor 3 to enter a refrigeration mode or a heating mode to the compressor 3, and the preset temperature threshold is an effective use temperature range of cleaning liquid for washing the heat exchanger 2;
the control system provided in this embodiment corresponds to the above-mentioned air conditioner cleaning method, and the corresponding principle and effect thereof may refer to the principle and effect of the air conditioner cleaning method in the above-mentioned embodiment, which are not described herein again.
Further, the spray set of this embodiment includes suction pump 4 and the shower 5 that is used for carrying the washing liquid, and suction pump 4 is connected with controller 1 electricity, through the switch of controller 1 control suction pump 4, improves cleaning system's degree of automation, conveniently pressurizes the back to the washing liquid simultaneously and spout from shower 5, further improves and sprays the clean effect who washes.
In addition, the aperture of the spray pipe 5 in the embodiment is between 0.5 mm and 4mm, so that the cleaning liquid sprayed out of the spray pipe 5 can form proper water flow to spray the heat exchanger 2.
In addition, still include the drain pump 6 that is used for discharging the sewage that produces after wasing heat exchanger 2 in this embodiment, drain pump 6 is connected with controller 1 electricity, is convenient for discharge the air conditioner with the sewage that produces after wasing heat exchanger 2 fast, avoids sewage gathering in the air conditioner to lead to the secondary pollution of heat exchanger 2, and specifically, drain pump 6 can be connected with the drain pipe of air conditioner, is convenient for carry out the drainage operation of air conditioner.
The controller 1 in the present embodiment includes a control unit 11, a temperature detection circuit 12 for detecting the heat exchanger 2, a compressor 3 control circuit 13 for controlling the compressor 3, and a water pump control circuit 14 for controlling the water pump 4 and the drain pump 6; the temperature detection circuit 12 detects the temperature of the heat exchanger 2 and feeds the temperature back to the control unit 11 to calculate to obtain the working mode and the operating frequency of the compressor 3 to generate a first control instruction and a second control instruction; the compressor 3 control circuit 13 controls the compressor 3 according to the first control instruction and the second control instruction; the water pump control circuit 14 controls the operation states of the water suction pump 4 and the water discharge pump 6.
For the control unit 11, a person skilled in the art may use an air conditioner MCU processor to implement the control method disclosed in the present invention.
One embodiment of the present disclosure is further described below:
firstly, the heat exchanger 2 is sprayed by a spraying device, at the moment, the temperature detection circuit 12 acquires the temperature of the heat exchanger 2 and feeds the acquired temperature information back to the control unit 11, the control unit 11 calculates the working mode and the clean running frequency corresponding to the compressor 3 when the temperature of the heat exchanger 2 is adjusted to a preset temperature threshold value according to the fed-back temperature information, and then the control circuit 13 of the compressor 3 controls the compressor 3 to realize the adjustment of the temperature of the heat exchanger 2;
at the moment, the controller 1 controls the water suction pump 4 and the water discharge pump 6 to work simultaneously through the water pump control circuit 14, and the water suction pump 4 pumps cleaning liquid to be sprayed out from the spraying pipe 5 at preset pressure so as to improve the cleaning effect of spraying; the drainage pump 6 discharges the sewage generated after cleaning the heat exchanger 2 from the air conditioner, and the surface heat exchanger 2 is secondarily polluted.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. An air conditioner cleaning method, comprising:
spraying a heat exchanger to flush the heat exchanger;
when the temperature of the heat exchanger is out of a preset temperature threshold value, sending a first control instruction for controlling the compressor to enter a refrigeration mode or a heating mode to the compressor, wherein the preset temperature threshold value is an effective use temperature range of cleaning liquid for flushing the heat exchanger.
2. The air conditioner cleaning method according to claim 1, wherein when the controller obtains that the temperature of the heat exchanger is outside a preset temperature threshold, the controller calculates a cleaning operation frequency of the compressor when the temperature of the heat exchanger is increased or decreased to the preset temperature threshold, and sends a second control instruction for controlling the frequency of the compressor to be increased or decreased to the cleaning operation frequency to the compressor.
3. The air conditioner cleaning method according to claim 1, wherein a controller obtains the temperature of the heat exchanger after the flushing of the heat exchanger is completed, the controller calculates a drying operation frequency of the compressor when the temperature of the heat exchanger is increased or decreased to a drying temperature, and sends a third control command for controlling the frequency of the compressor to be increased or decreased to the drying operation frequency to the compressor.
4. The air conditioner cleaning method according to claim 1, further comprising: and in the process that the spraying device sprays water to the heat exchanger, the controller controls and starts the drainage pump to discharge sewage generated after the heat exchanger is cleaned.
5. The air conditioner cleaning method according to claim 1, further comprising: and the controller controls the water suction pump to pump cleaning liquid to the heat exchanger for flushing.
6. An air conditioner, comprising:
a heat exchanger;
the compressor is used for providing corresponding energy to control the temperature of the heat exchanger;
the spraying device is used for spraying cleaning water to the heat exchanger to clean the heat exchanger;
and the controller is electrically connected with the compressor and used for acquiring the temperature of the heat exchanger and controlling the working mode and the running frequency of the compressor so as to adjust the temperature of the heat exchanger, wherein the working mode comprises a cooling mode and a heating mode.
7. The air conditioner as claimed in claim 6, wherein the spraying device includes a suction pump for pumping cleaning liquid, the suction pump being electrically connected with the controller.
8. The air conditioner as claimed in claim 7, wherein the spraying device further comprises a spraying pipe connected with the water pump, and the spraying pipe is provided with a plurality of spraying holes.
9. The air conditioner according to claim 6, further comprising a drain pump for discharging the sewage generated after the cleaning of the heat exchanger, the drain pump being electrically connected to the controller.
10. The air conditioner according to claim 6, wherein the controller control unit comprises a temperature detection circuit for detecting a heat exchanger, a compressor control circuit for controlling a compressor, and a water pump control circuit for controlling a water pump and a drain pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283344.3A CN111578773B (en) | 2020-04-13 | 2020-04-13 | Air conditioner and cleaning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010283344.3A CN111578773B (en) | 2020-04-13 | 2020-04-13 | Air conditioner and cleaning method thereof |
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| CN111578773A true CN111578773A (en) | 2020-08-25 |
| CN111578773B CN111578773B (en) | 2023-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112361532A (en) * | 2020-09-10 | 2021-02-12 | 江苏友奥电器有限公司 | Dust removal method and device for outdoor unit of household air conditioner |
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| CN104764359A (en) * | 2015-04-02 | 2015-07-08 | 广西大学 | Washing device of plate heat exchanger |
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Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
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