CN102435042B - Control method of draught fan of refrigerator compartment - Google Patents
Control method of draught fan of refrigerator compartment Download PDFInfo
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- CN102435042B CN102435042B CN201110336334.2A CN201110336334A CN102435042B CN 102435042 B CN102435042 B CN 102435042B CN 201110336334 A CN201110336334 A CN 201110336334A CN 102435042 B CN102435042 B CN 102435042B
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Abstract
The invention provides a control method for a draught fan of a refrigerator compartment. The method comprises the following steps of: detecting a first temperature of a compartment, if the first temperature of the compartment is higher than a first predetermined temperature, refrigerating the compartment and detecting a door of the compartment whether the door is opened or not, if the door is closed, controlling the start of the draught fan; if the first temperature of the compartment is lower than a second predetermined temperature, stopping refrigeration and closing the draught fan, and detecting an evaporator of the compartment whether is defrosted or not, if the evaporator is defrosted, controlling the start of the draught fan and judging a setting temperature of the compartment whether the setting temperature is higher than a third predetermined temperature, if the setting temperature is higher than the third predetermined temperature, judging defrosting is ended or not, if the defrosting is ended, controlling the closing of the draught fan; if the setting temperature is lower than the third predetermined temperature, judging the defrosting time whether reaches scheduled time or not, if the defrosting time reaches the scheduled time, controlling the closing of the draught fan; wherein the second predetermined temperature is lower than the first predetermined temperature. In the embodiment disclosed by the method, when the evaporator is defrosted, the draught fan can be selectively started, therefore, humidity of the compartment can be effectively improved, a moisture preserving demand of the compartment can be met, and freshness retaining time of foods can be improved.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, particularly a kind of control method of blower fan of refrigerator compartment.
Background technology
The startup of the blower fan that refrigerator cold-storage of the prior art is indoor and closing conventionally only just can optionally start in to the process of refrigerastion of refrigerating chamber, in evaporimeter defrost in refrigerating chamber, common and blower fan has nothing to do, blower fan is all the time in closed condition, as shown in Figure 1, first judge that whether refrigerating chamber is in refrigeration, if freezed, continue to judge whether the door of refrigerating chamber is opened, if in closed condition, control starting fan, and in the evaporimeter defrost process of refrigerating chamber, blower fan is always in closed condition, temp. in refrigerating chamber rises, on the contrary in refrigerating chamber, moisture reduces.As everyone knows, the humidity in Keep cool room air, at certain proportion, is conducive to the fresh-keeping of food.
Yet because at present consumer is more and more higher for the attention rate of food health, a lot of consumers are same sensation, buys fresh bright and beautiful vegetables, is placed in refrigerator several days and has just become dried vegetable later.For the city consumer that moisture-keeping functions is fast for rhythm of life, purchase once for a week, its importance is self-evident.
From the control method of existing blower fan, the following shortcoming of being not difficult to find to exist, because refrigeration indoor evaporator is when carrying out defrost, the temperature of evaporimeter needs to rise, thereby causes the rising of refrigerating chamber the temperature inside the box, air to be dried, therefore very unfavorable for the reservation of the fresh-keeping and nutrition of food, not only cause food etc. stale, and nutrition leak, or cause food waste, consumer need to buy food again, thereby will cause unnecessary economic waste for consumers.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, the object of the invention is to propose a kind of blower fan that optionally starts when defrost, the humidity of chamber between effectively improving, between assurance, chamber reaches the control method of blower fan of the refrigerator compartment of moisturizing requirement.
To achieve these goals, the embodiment of the present invention has proposed a kind of control method of blower fan of refrigerator compartment, comprise the following steps: the first temperature that detects refrigerator compartment, if described the first temperature is higher than the first predetermined temperature, freezed in chamber between described and detect described between the door of chamber whether open, if the door of chamber is closed between described, control described between the fan starting of chamber; When judging described the first temperature lower than the second predetermined temperature, stop the refrigeration of chamber between described and close described blower fan, and detect described between the evaporimeter of chamber whether in defrost state, if described evaporimeter is in defrost state, control described fan starting judgement described between the design temperature of chamber whether higher than the 3rd predetermined temperature, if the design temperature of chamber is higher than described the 3rd predetermined temperature between judgement is described, judge whether defrost finishes, if defrost finishes, control blower fan and close; If the design temperature of chamber is lower than described the 3rd predetermined temperature between judgement is described, judge whether defrost finishes or judge whether the defrost time reaches the scheduled time, if judgement defrost finishes or the defrost time reaches the scheduled time, controlling blower fan closes, wherein, described the second predetermined temperature is lower than described the first predetermined temperature.
According to the control method of the blower fan of the refrigerator compartment of the embodiment of the present invention, when the evaporimeter of refrigerator compartment is during in defrost state, start blower fan, and whether the design temperature that passes through chamber between judgement is higher than the 3rd predetermined temperature, the condition of closing of judgement blower fan, and then in defrost process, optionally start and close blower fan, when fan starting, effectively not only effectively improved the defrost speed of evaporimeter, and indoor humidity between effectively having improved, between making, indoor humidity reaches food moisturizing requirement, and then the preservativity of chamber between improving, increase the market competitiveness of refrigerator.
In addition, the control method of the blower fan of refrigerator compartment according to the above embodiment of the present invention can also have following additional technical characterictic:
In one embodiment of the invention, when described evaporimeter is carried out to defrost, also comprise: between judgement is described, whether the door of chamber is opened, if judgement described between the door of chamber open, control that described blower fan stops until between described the door of chamber close.
In one embodiment of the invention, between described detection, whether the evaporimeter of chamber, in defrost state, further comprises: receive the Current Temperatures signal come from the described evaporimeter that the first temperature sensor detects; Whether detect the Current Temperatures signal of described evaporimeter higher than the 4th predetermined temperature, if the Current Temperatures signal that judges described evaporimeter is lower than described the 4th predetermined temperature, judge that described evaporimeter is in defrost state.
In one embodiment of the invention, by defrosting heater, described evaporimeter is carried out defrost or by the mode of natural defrost, described evaporimeter carried out to defrost.
In one embodiment of the invention, if the design temperature of chamber is lower than described the 3rd predetermined temperature between described, judge that described Current Temperatures signal is whether lower than described the 4th predetermined temperature or judge whether described defrosting heater reaches the described scheduled time to the heat time of described evaporimeter, if judge described Current Temperatures signal higher than described the 4th predetermined temperature or judge that described defrosting heater reaches the described scheduled time to the heat time of described evaporimeter, controls blower fan and closes.
In one embodiment of the invention, by be arranged on described between the second indoor temperature sensor detect described between the first temperature of chamber.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the flow chart of the control method of the blower fan of existing methodical refrigerator compartment; And
Fig. 2 is the flow chart of control method of blower fan of the refrigerator compartment of one embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance.
Below in conjunction with accompanying drawing 2, describe according to the control method of the blower fan of the refrigerator compartment of the embodiment of the present invention.
As shown in Figure 2, be the flow chart of the control method of the blower fan of the refrigerator compartment of one embodiment of the invention.The control method of the blower fan of the refrigerator compartment that the embodiment of the present invention proposes, comprises the following steps:
Step S101, detects the first temperature of refrigerator compartment, if described the first temperature higher than the first predetermined temperature, freezed in chamber between described and detects described between the door of chamber whether open, if the door of chamber is closed between described, described in controlling between the fan starting of chamber.
It should be noted that, the first temperature is the Current Temperatures in refrigerating chamber, and the starting point temperature that the first predetermined temperature is refrigerating chamber.In one embodiment of the invention, by an indoor temperature sensor between being arranged on detect described between the first temperature of chamber.If Current Temperatures indoor between refrigerator, higher than starting point temperature, to chamber refrigeration between refrigerator, and when the door of a chamber is closed, starts blower fan with indoor circulating cold air speed between accelerating.In another embodiment of the present invention, the first predetermined temperature is relevant with the design temperature of a chamber, the first predetermined temperature can be arranged to higher than between 2 ℃ to 4 ℃ of the design temperatures of a chamber.Due in one embodiment of the invention, suppose that design temperature is 4 ℃, the first predetermined temperature is arranged to higher than 2 ℃ of design temperatures, and the first predetermined temperature is 6 ℃.But for different refrigerators and different design temperature, the first preset temperature is also different, in above-described embodiment between chamber be refrigerating chamber.Following examples be take equally a chamber and are described as refrigerating chamber.
Step S102, when judging described the first temperature lower than the second predetermined temperature, stop the refrigeration of chamber between described and close described blower fan, and detect described between the evaporimeter of chamber whether in defrost state, if described evaporimeter is in defrost state, control described fan starting judgement described between the design temperature of chamber whether higher than the 3rd predetermined temperature, if the design temperature of chamber is higher than described the 3rd predetermined temperature between judgement is described, judge whether defrost finishes, if defrost finishes, control blower fan and close.
In one embodiment of the invention, the second predetermined temperature is configured to lower than 1 ℃ to 3 ℃ left and right of the design temperature in above-described embodiment, and the second predetermined temperature is actually the Burnout temperature of a chamber.When an indoor Current Temperatures is lower than Burnout temperature, stop freezing and closing blower fan.Certainly, according to different refrigerators and a chamber, the second predetermined temperature is configured to lower than the actual temperature of above-mentioned design temperature also incomplete same.
Then between detecting, whether indoor evaporator needs defrost, and as an example of the present invention, between detection, whether the evaporimeter of chamber needs defrost to comprise the following steps:
1, receive the Current Temperatures signal come from the described evaporimeter that the first temperature sensor detects.In one embodiment of the invention, at evaporator surface, a temperature sensor (the first temperature sensor) is set, is used for detecting evaporator surface temperature.
Whether the Current Temperatures signal that 2, detects described evaporimeter is higher than the 4th predetermined temperature, if judge that the Current Temperatures signal of described evaporimeter is lower than described the 4th predetermined temperature, judge that described evaporimeter is in defrost state, in one embodiment of the invention, defrost to evaporimeter, can adopt defrosting heater to the mode of described evaporimeter heating or by the mode of natural defrost, described evaporimeter be carried out to defrost.After each refrigeration, evaporator surface temperature drops to very low, in order to guarantee next refrigeration, can carry out, the Current Temperatures of evaporimeter (Current Temperatures signal) need to be risen to a predetermined temperature (the 4th predetermined temperature), be defrost, when evaporimeter Current Temperatures reaches after this predetermined temperature, if there is refrigeration request, evaporimeter can start, otherwise can not freeze.In actual applications, common the 4th predetermined temperature is made as between 2 ℃ to 4 ℃, as a lot of refrigerators are set to 3 ℃ by this 4th temperature setting.Thus, can avoid the defrost time too short, cause defrost poor effect, can avoid defrost overlong time again, cause a fluctuations in indoor temperature excessive.
By above-mentioned steps 1 and 2, whether judge evaporimeter in defrost state, when being judged as defrost state, control fan starting, not only accelerate defrost speed, improve defrost efficiency, between defrosting water can also being blown in indoor air, indoor humidity between raising, with the preservativity of chamber between improving, increase the fresh keeping time of food.
Next, whether continue the design temperature of chamber between judgement higher than the 3rd predetermined temperature, if the design temperature of chamber, higher than described the 3rd predetermined temperature, judges whether defrost finishes between described in judgement, if defrost finishes, control blower fan and close.It should be noted that, between the design temperature of chamber higher, the defrost time of evaporimeter is shorter, be that the 4th predetermined temperature that evaporator temperature is brought up to above-described embodiment becomes easier, otherwise, it is elongated that the temperature of evaporimeter is brought up to time of the 4th predetermined temperature of above-described embodiment, in defrost process, when start blower fan relevant to the height of design temperature of when closing blower fan and a chamber, in the above-described embodiments, the 3rd predetermined temperature is set between 7 ℃ to 9 ℃, preferably, it is 8 ℃, now, the 4th predetermined temperature that the temperature of evaporimeter is brought up to above-described embodiment becomes easy, be that defrost speed is fast, therefore, in whole defrost process, by fan starting, not only improve defrost speed, and indoor between the excessive moisture producing in the time of can be by defrost blows to by blower fan, thereby make air humidity in a chamber increase, approach nature 80% moisturizing rate, and then food and extend fresh keeping time, pin moisture and nutrition in food, meet long term consumer and store food.
Step S103, if the design temperature of chamber is lower than described the 3rd predetermined temperature between judgement is described, judge that whether defrost finishes or judge whether the defrost time reach the scheduled time, if judgement defrost finishes or the defrost time reaches the scheduled time, controls blower fan and closes.If the design temperature of chamber is lower than described the 3rd predetermined temperature between described, judge that described Current Temperatures signal is whether lower than described the 4th predetermined temperature or judge whether described defrosting heater reaches the described scheduled time to the heat time of described evaporimeter, if judge described Current Temperatures signal higher than described the 4th predetermined temperature or judge that described defrosting heater reaches the described scheduled time to the heat time of described evaporimeter, controls blower fan and closes.
In an above-mentioned embodiment, if the design temperature of chamber is lower than described the 3rd predetermined temperature between judgement, the defrost that is actually evaporimeter is not easy, be will extend the defrost time, and defrost overlong time, between indoor temperature rise too high, cause compartment temperature fluctuation excessive, therefore, in the very difficult situation of defrost of evaporimeter, embodiments of the invention are controlled the operation of blower fan by the defrost time, to avoid an indoor humidity fluctuation excessive, in other words, if changed in two very difficult situations at evaporimeter, when defrost continued after the scheduled time, defrost in time is also continuing, also will close blower fan, to avoid an indoor humidity too high, be unfavorable for equally the fresh-keeping of food.In one embodiment of the invention, the scheduled time is set to 20 minutes, thus, in defrost process, fan starting 20min left and right, between assurance, indoor humidity maintains 80% moisturizing rate left and right, is more conducive to the fresh-keeping of food.Certainly, the length of the scheduled time is relevant with the defrost ability of refrigerator, if for the good refrigerator of defrost ability, what the scheduled time can be arranged is shorter, otherwise the scheduled time can be arranged longer.
It should be noted that, the second predetermined temperature in above-described embodiment is lower than the first predetermined temperature.Be that starting point temperature is lower than break point temperature.For the refrigerator of one embodiment of the present of invention, when the scheduled time is 20min left and right, can as much as possible the humidity of a chamber be remained on 80% upper and lower, certainly, for the 4th predetermined temperature of different evaporimeters, need correspondingly to change as required the scheduled time.
In another embodiment of the present invention, when described evaporimeter is carried out to defrost, also comprise: between judgement is described, whether the door of chamber is opened, if judgement described between the door of chamber open, control that described blower fan stops until between described the door of chamber close.
According to the control method of the blower fan of the refrigerator compartment of the embodiment of the present invention, when the evaporimeter of refrigerator compartment is during in defrost state, start blower fan, and whether the design temperature that passes through chamber between judgement is higher than the 3rd predetermined temperature, the condition of closing of judgement blower fan, and then in defrost process, optionally start and close blower fan, when fan starting, effectively not only effectively improved the defrost speed of evaporimeter, and indoor humidity between effectively having improved, between making, indoor humidity reaches food moisturizing requirement, and then the preservativity of chamber between improving, increase the market competitiveness of refrigerator.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claim and be equal to and limit.
Claims (6)
1. a control method for the blower fan of refrigerator compartment, is characterized in that, comprises the following steps:
Detect the first temperature of refrigerator compartment, if described the first temperature higher than the first predetermined temperature, freezed in chamber between described and detects described between the door of chamber whether open, if the door of chamber is closed between described, described in controlling between the fan starting of chamber;
When judging described the first temperature lower than the second predetermined temperature, stop the refrigeration of chamber between described and close described blower fan, and detect described between the evaporimeter of chamber whether in defrost state, if described evaporimeter is in defrost state, control described fan starting judgement described between the design temperature of chamber whether higher than the 3rd predetermined temperature, if the design temperature of chamber is higher than described the 3rd predetermined temperature between judgement is described, judge whether defrost finishes, if defrost finishes, control blower fan and close;
If the design temperature of chamber is lower than described the 3rd predetermined temperature between judgement is described, judge whether defrost finishes or judge whether the defrost time reach the scheduled time, if judge that defrost finishes or the defrost time reaches the scheduled time, controls blower fan and closes,
Wherein, described the second predetermined temperature is lower than described the first predetermined temperature.
2. the control method of the blower fan of refrigerator compartment according to claim 1, is characterized in that, when described evaporimeter is carried out to defrost, also comprises:
Between judgement is described, whether the door of chamber is opened, if judgement described between the door of chamber open, control that described blower fan stops until between described the door of chamber close.
3. the control method of the blower fan of refrigerator compartment according to claim 1, is characterized in that, between described detection, whether the evaporimeter of chamber, in defrost state, further comprises:
Reception comes from the Current Temperatures signal of the described evaporimeter that the first temperature sensor detects;
Whether detect the Current Temperatures signal of described evaporimeter higher than the 4th predetermined temperature, if the Current Temperatures signal that judges described evaporimeter is lower than described the 4th predetermined temperature, judge that described evaporimeter is in defrost state.
4. the control method of the blower fan of refrigerator compartment according to claim 3, is characterized in that, by defrosting heater, described evaporimeter is carried out defrost or by the mode of natural defrost, described evaporimeter is carried out to defrost.
5. the control method of the blower fan of refrigerator compartment according to claim 4, it is characterized in that, if the design temperature of chamber is lower than described the 3rd predetermined temperature between described, judge that described Current Temperatures signal is whether lower than described the 4th predetermined temperature or judge whether described defrosting heater reaches the described scheduled time to the heat time of described evaporimeter, if judge described Current Temperatures signal higher than described the 4th predetermined temperature or judge that described defrosting heater reaches the described scheduled time to the heat time of described evaporimeter, controls blower fan and closes.
6. according to the control method of the blower fan of the refrigerator compartment described in claim 1-5 any one, it is characterized in that, by be arranged on described between the second indoor temperature sensor detect described between the first temperature of chamber.
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| CN201110336334.2A CN102435042B (en) | 2011-10-28 | 2011-10-28 | Control method of draught fan of refrigerator compartment |
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| CN201110336334.2A CN102435042B (en) | 2011-10-28 | 2011-10-28 | Control method of draught fan of refrigerator compartment |
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| CN102435042B true CN102435042B (en) | 2014-02-26 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103363759B (en) * | 2013-08-01 | 2016-04-13 | 合肥美的电冰箱有限公司 | Refrigerator defrosting method and system |
| CN104266452B (en) * | 2014-10-13 | 2016-06-15 | 合肥美的电冰箱有限公司 | The control method of wind cooling refrigerator and the control device of wind cooling refrigerator |
| CN107240197A (en) * | 2016-03-28 | 2017-10-10 | 山东新北洋信息技术股份有限公司 | A kind of express mail cabinet |
| CN106091535A (en) * | 2016-05-30 | 2016-11-09 | Tcl家用电器（合肥）有限公司 | Chill box damping control method and wind cooling refrigerator |
| CN106369911B (en) * | 2016-11-30 | 2019-03-29 | 海信容声(广东)冰箱有限公司 | A kind of control method of refrigerator and its water receiver anti-freeze |
| CN109855340B (en) * | 2017-11-30 | 2020-08-28 | 青岛海尔股份有限公司 | Refrigerating and freezing device and storage container thereof |
| CN111076491B (en) * | 2018-10-22 | 2020-10-30 | 海尔智家股份有限公司 | Refrigerator and control method thereof |
| CN112823709B (en) * | 2019-11-20 | 2025-03-14 | 青岛海尔特种电冰柜有限公司 | A method for controlling humidity in a wine cabinet |
| CN112460905B (en) * | 2020-11-19 | 2022-02-25 | 珠海格力电器股份有限公司 | Refrigerator return air defrosting control method and device and air-cooled refrigerator |
| CN113915902B (en) * | 2021-06-25 | 2022-11-15 | 海信冰箱有限公司 | Refrigerator and refrigerator noise reduction method |
| CN115839599B (en) * | 2021-09-18 | 2025-02-18 | 青岛海尔电冰箱有限公司 | Refrigerator and defrosting control method and device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH109744A (en) * | 1996-06-25 | 1998-01-16 | Matsushita Refrig Co Ltd | Refrigerator |
| KR100308529B1 (en) * | 1998-10-30 | 2002-06-20 | 전주범 | Method and apparatus for driving an air curtain fan for a refrigerator |
| CN1273791C (en) * | 2004-07-30 | 2006-09-06 | 海信集团有限公司 | Method for controlling time-sharing work of frequency-conversion air-cooled refrigerator |
| CN100416196C (en) * | 2005-09-23 | 2008-09-03 | 海信（北京）电器有限公司 | Air-cooled variable frequency refrigerator and its control method |
| KR20100085274A (en) * | 2009-01-20 | 2010-07-29 | 주식회사 대우일렉트로닉스 | Method for controlling a refrigerator |
| CN101937247B (en) * | 2010-03-30 | 2013-06-05 | 合肥美的荣事达电冰箱有限公司 | Air cooling refrigerator as well as moisture-preservation control method and system thereof |
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Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant after: Hefei Midea Refrigerator Co., Ltd. Applicant after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant before: Hefei Media Rongshida Refrigerator Co., Ltd. Applicant before: Hefei Hualing Co., Ltd. |
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