CN102590662A - Fault detecting method for refrigerator - Google Patents
Fault detecting method for refrigerator Download PDFInfo
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- CN102590662A CN102590662A CN2012100235309A CN201210023530A CN102590662A CN 102590662 A CN102590662 A CN 102590662A CN 2012100235309 A CN2012100235309 A CN 2012100235309A CN 201210023530 A CN201210023530 A CN 201210023530A CN 102590662 A CN102590662 A CN 102590662A
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Abstract
The invention discloses a fault detecting method for a refrigerator. The method comprises the following step of: detecting a temperature of a refrigerating room of the refrigerator; when the temperature of the refrigerating room of the refrigerator is equal to or more than a pre-set temperature, turning on a plurality of load equipment of the refrigerator and detecting operation powers of a plurality of the load equipment; respectively comparing the detected operation powers of a plurality of the load equipment with a target power of the corresponding load equipment; and if differences of the operation powers of a plurality of the load equipment and the corresponding target power exceed a pre-set tolerance value, sending out a fault signal. The fault detecting method uses software full-automatic identification without manual detection and has the advantages of rapid speed, high efficiency and low cost. The false rate is approximately zero. Therefore, the product quality is ensured.
Description
Technical field
The present invention relates to refrigeration plant manufacturing technology field, particularly a kind of fault detection method that is used for refrigerator.
Background technology
When producing refrigerator in enormous quantities,, must carry out performance and Function detection to every refrigerator in order to guarantee the quality of product.Traditional refrigerator detection method is every refrigerator of manual detection, and the testing staff of specialty compares the operating actual effect of refrigerator and numerical value and each item expectation index, thereby judges whether refrigerator is qualified through investigation one by one.The shortcoming of manual detection breakdown of refrigerator mainly can be divided into two aspects: manual detection speed is slow on the one hand, and elapsed time is longer, and this will reduce the whole production efficiency of manufacturer, increases production cost; And on the other hand because people subjective, judged result is accurate inadequately, and the people receives the influence of factors such as environment easily, and this causes possibility of manual detection erroneous judgement to increase, and brings greater risk for the market quality of product.
Summary of the invention
The object of the invention is intended to solve at least one of above-mentioned technological deficiency, has proposed a kind of fault detection method that is used for refrigerator especially.
For achieving the above object, the embodiment of first aspect present invention has proposed a kind of fault detection method that is used for refrigerator, comprises the steps: to detect the temperature of the refrigerating chamber of refrigerator; When the temperature of the refrigerating chamber of said refrigerator is equal to or higher than preset temperature, starts a plurality of load equipments of said refrigerator, and detect the operate power of said a plurality of load equipments; The operate power of detected said a plurality of load equipments is compared with the target power of corresponding load equipment respectively,, then send fault-signal if when the operate power of said load equipment and the difference of corresponding target power surpass preset tolerance value.
The fault detection method that is used for refrigerator according to the embodiment of the invention adopts software automatically to discern, and does not need manual detection, practices thrift manpower, reduces production costs; Detection speed is fast, can increase substantially the efficient of whole production line; Accuracy in detection is high, all is to detect identification automatically by software because all detect links, and False Rate is zero basically, thus the quality of the product that has guaranteed to come into the market.
In one embodiment of the invention, said preset temperature is 0～5 degree centigrade.
In one embodiment of the invention, said a plurality of load equipment comprises: refrigerating chamber blower fan, reefer blower fan, condensation fan, water inlet pipe heater strip, left temperature-changing chamber air door heater strip, right temperature-changing chamber air door heater strip, back timber heater strip, left temperature-changing chamber heater strip, right temperature-changing chamber heater strip, reefer defrost heater strip, refrigerating chamber defrost heater strip, water pump and compressor.
In one embodiment of the invention; Also comprise the steps: if the operate power of judging said a plurality of load equipments and the difference of corresponding target power are when surpassing said preset tolerance value; Then controlling said refrigerating chamber freezes with first duration; And whether the temperature whether temperature of judging said refrigerating chamber is positioned at first pre-set interval and said reefer is positioned at second pre-set interval; Temperature outer or said reefer is positioned at outside said second pre-set interval if the temperature of said refrigerating chamber is positioned at said first pre-set interval, then sends fault-signal.
In one embodiment of the invention, said first duration is 3～5 minutes.
In one embodiment of the invention; Also comprise the steps: to be positioned at said second pre-set interval if the temperature of said refrigerating chamber is positioned at the temperature of said first pre-set interval and said reefer; Then control said refrigerating chamber and said reefer freezes with second duration simultaneously; And whether the temperature whether temperature of judging said refrigerating chamber is positioned at first pre-set interval and said reefer is positioned at second pre-set interval
Temperature outer or said reefer is positioned at outside said second pre-set interval if the temperature of said refrigerating chamber is positioned at said first pre-set interval, then sends fault-signal.
In one embodiment of the invention, said first duration is 3～5 minutes.
In one embodiment of the invention, said preset tolerance value is 1～2 degree centigrade.
In one embodiment of the invention, the operate power according to detected said a plurality of load equipments generates the load running powertrace; Said load running powertrace and preset load targets powertrace are compared, and wherein, said load targets powertrace writes down the target power of said a plurality of load equipments.
In one embodiment of the invention, also comprise the steps: to show the failure message of said fault-signal correspondence.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the process flow diagram according to the fault detection method of the refrigerator of the embodiment of the invention;
Fig. 2 is the FB(flow block) according to the fault detection method of the refrigerator of the embodiment of the invention; And
Fig. 3 is the load targets power.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
Disclosing of hereinafter provides many various embodiment or example to be used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts and the setting of specific examples are described.Certainly, they only are example, and purpose does not lie in restriction the present invention.In addition, the present invention can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and purpose clearly, itself not indicate the relation between various embodiment that discuss of institute and/or the setting.In addition, various specific technology and the examples of material that the invention provides, but those of ordinary skills can recognize the property of can be applicable to of other technologies and/or the use of other materials.In addition; First characteristic of below describing second characteristic it " on " structure can comprise that first and second characteristics form the embodiment of direct contact; Can comprise that also additional features is formed on the embodiment between first and second characteristics, such first and second characteristics possibly not be direct contacts.
With reference to following description and accompanying drawing, with these and other aspects of knowing embodiments of the invention.These describe with accompanying drawing in, some specific implementations in the embodiments of the invention are specifically disclosed, represent some modes of principle of the embodiment of embodiment of the present invention, still should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise and fall into appended spirit that adds the right claim and all changes, modification and the equivalent in the intension scope.
With reference to figure 1 and Fig. 2 the fault detection method according to the refrigerator of the embodiment of the invention is described below.
Step S110: the temperature that detects the refrigerating chamber of refrigerator.As shown in Figure 2, when beginning, testing process powers on, detect freezer temperature.
Step S120: when the temperature of the refrigerating chamber of refrigerator is equal to or higher than preset temperature, start a plurality of load equipments of refrigerator, and detect the operate power of a plurality of load equipments.Otherwise, send fault-signal and show that the corresponding failure message of fault-signal shows the failure message that fault-signal is corresponding.
In one embodiment of the invention, preset temperature is an empirical value, is made as 0～5 degree centigrade.It is understandable that, above-mentioned preset temperature only for exemplary purposes, the embodiment of the invention is not limited to this, should set according to actual conditions.In one embodiment of the invention, a plurality of load equipments comprise: refrigerating chamber blower fan, reefer blower fan, condensation fan, water inlet pipe heater strip, left temperature-changing chamber air door heater strip, right temperature-changing chamber air door heater strip, back timber heater strip, left temperature-changing chamber heater strip, right temperature-changing chamber heater strip, reefer defrost heater strip, refrigerating chamber defrost heater strip, water pump and compressor.It is understandable that above-mentioned load equipment only is for exemplary purposes, according to the difference of the load types in the refrigerator, a plurality of load equipments can also be other loads.
The detailed process of a plurality of load equipments of startup refrigerator is following:
Step S1201: the refrigerating chamber blower fan was opened 1.5 seconds, closed 0.5 second;
Step S1202: the reefer blower fan was opened 1.5 seconds, closed 0.5 second;
Step S1203: condensation fan was opened 1.5 seconds, closed 0.5 second;
Step S1204: the water inlet pipe heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1205: left temperature-changing chamber air door heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1206: right temperature-changing chamber air door heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1207: static 2 seconds;
Step S1208: the back timber heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1209: left temperature-changing chamber heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1210: right temperature-changing chamber heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1211: reefer defrost heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1212: refrigerating chamber defrost heater strip was opened 1.5 seconds, closed 0.5 second;
Step S1213: water pump was just changeing 1.5 seconds, closed 0.5 second;
Step S1214: water pump counter-rotating 1.5 seconds, closed 0.5 second.
It is understandable that, the detailed process that above-mentioned a plurality of load equipments start only for exemplary purposes, the embodiment of the invention is not limited to this.Can set the order of load equipment and startup as the case may be, interval and switching time.
Step S130: the operate power of detected a plurality of load equipments is compared with the target power of corresponding load equipment respectively; If when the operate power of load equipment and the difference of corresponding target power surpass preset tolerance value, then send fault-signal and show the failure message that fault-signal is corresponding.
In one embodiment of the invention, preset tolerance value is made as 1～2 degree centigrade, above-mentioned preset tolerance value only for exemplary purposes, the embodiment of the invention is not limited to this.
Operate power according to the detected a plurality of load equipments of step S120 generates the load running powertrace, and load running powertrace and preset load targets powertrace are compared.The load targets powertrace writes down the target power of a plurality of load equipments, and Fig. 3 is an example of preset load targets powertrace.If the load running powertrace was looked into preset tolerance value (1～2 degree centigrade) with the difference of the load targets powertrace comparison of presetting, then testing process finishes, and sends fault-signal and shows the failure message that fault-signal is corresponding.
As can be seen from Figure 3, the target power of reefer blower fan and refrigerating chamber blower fan is 4W, and the target power of condensation fan is 2W; The target power of water inlet pipe heater strip is 2W, and the target power 2W of left air door heater strip, the target power of vertical beam heater strip are 9W; The target power of left side temperature-changing chamber heater strip and right temperature-changing chamber heater strip is 8W, and the target power of reefer defrost heater strip is 9W, and the target power of refrigerating chamber defrost heater strip is 180W; The target power that pump motor is just changeing is 4W; The target power of pump motor counter-rotating is 4W, and the target power of compressor slow running is 80W, and compressor tells that the target power of operation is 180W.
Otherwise whether the refrigeration system that detection will continue to judge refrigerator operate as normal, and through sampling warm area medial temperature, the temperature of air outlet and evaporator judges whether refrigeration system is in proper working order.Concrete steps are as shown in Figure 2:
S140:, then control refrigerating chamber and freeze with first duration if when the operate power of judging a plurality of load equipments and the difference of corresponding target power surpass preset tolerance value.First duration should be provided with suitable value according to the type of refrigerator, if oversize meeting of time lowers efficiency, the time, too short result was not obvious, and it is 3～5 minutes that first duration is set here.For example, control refrigerating chamber first duration that freezes is 4 minutes.It is understandable that, the setting of above-mentioned first duration only for exemplary purposes, the embodiment of the invention is not limited to this.S150: whether the temperature whether temperature of judging refrigerating chamber is positioned at first pre-set interval and reefer is positioned at second pre-set interval.Temperature outer or reefer is positioned at outside second pre-set interval if the temperature of refrigerating chamber is positioned at first pre-set interval, then sends fault-signal, detects and finishes.Otherwise, if the temperature of refrigerating chamber and reefer all in first, second pre-set interval of correspondence, can think that the temperature of refrigerating chamber and reefer for normal, detect and continues.
S160: be positioned at second pre-set interval if the temperature of refrigerating chamber is positioned at the temperature of first pre-set interval and reefer, then control refrigerating chamber and reefer and freeze simultaneously with second duration.Second duration is set is 3 minutes, as shown in Figure 2, control refrigerating chamber and reefer second duration (3 minutes) that freezes simultaneously.Wherein, the value that above-mentioned second duration is provided with only for exemplary purposes, the embodiment of the invention is not limited to this.
Particularly, compressor starts earlier low-frequency operation 10 seconds, and starting the high frequency operation: refrigerating chamber is refrigeration first duration earlier, and for example 4 minutes, refrigerating chamber and reefer second duration that freezes simultaneously then, for example 3 minutes, during this period, air door stayed open state.
In an example of the present invention, the rotating speed of compressor low-frequency operation is 1620rpm (revolutions per minute, what change per minute), and the rotating speed of compressor high frequency operation is 3780rpm.
S170: whether the temperature whether temperature of judging refrigerating chamber is positioned at first pre-set interval and reefer is positioned at second pre-set interval; Temperature outer or reefer is positioned at outside second pre-set interval if the temperature of refrigerating chamber is positioned at first pre-set interval, then sends fault-signal and shows the failure message that fault-signal is corresponding.Otherwise, can think that the temperature of refrigerating chamber and reefer is normal, refrigerator is specification product, testing process finishes.
The fault detection method that is used for refrigerator according to the embodiment of the invention generally can be accomplished in 10 minutes.The fault detection method that is used for refrigerator adopts software automatically to discern, and does not need manual detection, practices thrift manpower, reduces production costs; Detection speed is fast, can increase substantially the efficient of whole production line; Accuracy in detection is high, all is to detect identification automatically by software because all detect links, and False Rate is zero basically, thus the quality of the product that has guaranteed to come into the market.
Describe and to be understood that in the process flow diagram or in this any process otherwise described or method; Expression comprises module, fragment or the part of code of the executable instruction of the step that one or more is used to realize specific logical function or process; And the scope of preferred implementation of the present invention comprises other realization; Wherein can be not according to order shown or that discuss; Comprise according to related function and to carry out function by the mode of basic while or by opposite order, this should be understood by the embodiments of the invention person of ordinary skill in the field.
In process flow diagram the expression or in this logic of otherwise describing and/or step; For example; Can be considered to be used to realize the sequencing tabulation of the executable instruction of logic function; May be embodied in any computer-readable medium; Use for instruction execution system, device or equipment (like computer-based system, comprise that system or other of processor can be from the systems of instruction execution system, device or equipment instruction fetch and execution command), or combine these instruction execution systems, device or equipment and use.With regard to this instructions, " computer-readable medium " can be anyly can comprise, storage, communication, propagation or transmission procedure are for instruction execution system, device or equipment or combine these instruction execution systems, device or equipment and the device that uses.The example more specifically of computer-readable medium (non-exhaustive list) comprises following: the electrical connection section (electronic installation) with one or more wirings; Portable computer diskette box (magnetic device); Random-access memory (ram), ROM (read-only memory) (ROM) can be wiped and can edit ROM (read-only memory) (EPROM or flash memory); Fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition; Computer-readable medium even can be paper or other the suitable media that to print said program above that; Because can be for example through paper or other media are carried out optical scanning; Then edit, decipher or handle to obtain said program with other suitable methods in case of necessity with the electronics mode, then it is stored in the computer memory.
Should be appreciated that each several part of the present invention can use hardware, software, firmware or their combination to realize.In the above-described embodiment, a plurality of steps or method can realize with being stored in the storer and by software or firmware that suitable instruction execution system is carried out.For example; If realize with hardware; The same in another embodiment, each in the available following technology well known in the art or their combination realize: have the discrete logic that is used for data-signal is realized the logic gates of logic function, have the special IC of suitable combinational logic gate circuit; Programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to accomplish through program; Described program can be stored in a kind of computer-readable recording medium; This program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If said integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a ROM (read-only memory), disk or CD etc.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (10)
1. a fault detection method that is used for refrigerator is characterized in that, comprises the steps:
Detect the temperature of the refrigerating chamber of refrigerator;
When the temperature of the refrigerating chamber of said refrigerator is equal to or higher than preset temperature, starts a plurality of load equipments of said refrigerator, and detect the operate power of said a plurality of load equipments; And
The operate power of detected said a plurality of load equipments is compared with the target power of corresponding load equipment respectively,, then send fault-signal if when the operate power of said load equipment and the difference of corresponding target power surpass preset tolerance value.
2. fault detection method as claimed in claim 1 is characterized in that, said preset temperature is 0～5 degree centigrade.
3. fault detection method as claimed in claim 1; It is characterized in that said a plurality of load equipments comprise: refrigerating chamber blower fan, reefer blower fan, condensation fan, water inlet pipe heater strip, left temperature-changing chamber air door heater strip, right temperature-changing chamber air door heater strip, back timber heater strip, left temperature-changing chamber heater strip, right temperature-changing chamber heater strip, reefer defrost heater strip, refrigerating chamber defrost heater strip, water pump and compressor.
4. fault detection method as claimed in claim 1 is characterized in that, also comprises the steps:
When if the operate power of judging said a plurality of load equipments and the difference of corresponding target power surpass said preset tolerance value; Then controlling said refrigerating chamber freezes with first duration; And whether the temperature whether temperature of judging said refrigerating chamber is positioned at first pre-set interval and said reefer is positioned at second pre-set interval
Temperature outer or said reefer is positioned at outside said second pre-set interval if the temperature of said refrigerating chamber is positioned at said first pre-set interval, then sends fault-signal.
5. fault detection method as claimed in claim 4 is characterized in that, said first duration is 3～5 minutes.
6. fault detection method as claimed in claim 4 is characterized in that, also comprises the steps:
If the temperature of said refrigerating chamber is positioned at the temperature of said first pre-set interval and said reefer and is positioned at said second pre-set interval; Then control said refrigerating chamber and said reefer freezes with second duration simultaneously; And whether the temperature whether temperature of judging said refrigerating chamber is positioned at first pre-set interval and said reefer is positioned at second pre-set interval
Temperature outer or said reefer is positioned at outside said second pre-set interval if the temperature of said refrigerating chamber is positioned at said first pre-set interval, then sends fault-signal.
7. fault detection method as claimed in claim 6 is characterized in that, said first duration is 3～5 minutes.
8. fault detection method as claimed in claim 1 is characterized in that, said preset tolerance value is 1～2 degree centigrade.
9. like each described fault detection method among the claim 1-8, it is characterized in that,
Operate power according to detected said a plurality of load equipments generates the load running powertrace;
Said load running powertrace and preset load targets powertrace are compared, and wherein, said load targets powertrace writes down the target power of said a plurality of load equipments.
10. like each described fault detection method among the claim 1-9, it is characterized in that, also comprise the steps: the failure message that shows that said fault-signal is corresponding.
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| CN2012100235309A CN102590662A (en) | 2012-02-02 | 2012-02-02 | Fault detecting method for refrigerator |
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| CN2012100235309A CN102590662A (en) | 2012-02-02 | 2012-02-02 | Fault detecting method for refrigerator |
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| CN102954897A (en) * | 2012-12-07 | 2013-03-06 | 合肥美的荣事达电冰箱有限公司 | Detecting method of refrigerator |
| CN103163879A (en) * | 2013-03-22 | 2013-06-19 | 四川长虹电器股份有限公司 | Detection method for reliability test of refrigerator controller |
| CN103499462A (en) * | 2013-10-23 | 2014-01-08 | 合肥美的电冰箱有限公司 | Delivery detection method for refrigerator |
| CN103837755A (en) * | 2012-11-22 | 2014-06-04 | 海尔集团公司 | Refrigerator component fault detection method and system |
| CN104613730A (en) * | 2015-03-05 | 2015-05-13 | 合肥美菱股份有限公司 | Fault operation method for refrigerators, and refrigerator using fault operation method |
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| CN103837755A (en) * | 2012-11-22 | 2014-06-04 | 海尔集团公司 | Refrigerator component fault detection method and system |
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| CN104613730A (en) * | 2015-03-05 | 2015-05-13 | 合肥美菱股份有限公司 | Fault operation method for refrigerators, and refrigerator using fault operation method |
| CN104613730B (en) * | 2015-03-05 | 2017-09-26 | 合肥美菱股份有限公司 | A kind of breakdown of refrigerator operation method and its refrigerator |
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| CN107991117A (en) * | 2017-11-28 | 2018-05-04 | 莱茵技术-商检（青岛）有限公司 | A kind of test method of commercial refrigerator |
| CN108427993A (en) * | 2018-01-18 | 2018-08-21 | 海尔优家智能科技（北京）有限公司 | A kind of automatic repair method of equipment, device, medium and equipment |
| CN108427993B (en) * | 2018-01-18 | 2020-11-10 | 海尔优家智能科技（北京）有限公司 | Automatic equipment maintenance method, device, medium and equipment |
| CN108593317A (en) * | 2018-02-27 | 2018-09-28 | 广州美的华凌冰箱有限公司 | Delivery detection method for refrigerator, refrigerator outgoing detector and refrigerator |
| CN108742144A (en) * | 2018-05-29 | 2018-11-06 | 佛山市顺德区美的饮水机制造有限公司 | Water-free detection method and system, the purifying drinking appliance and computer equipment of purifying drinking appliance |
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| CN110346671A (en) * | 2019-08-22 | 2019-10-18 | 珠海格力电器股份有限公司 | Failure based reminding method, device and the electrical equipment of electrical equipment |
| CN112050548A (en) * | 2020-09-11 | 2020-12-08 | 合肥美菱物联科技有限公司 | Fault self-checking method and system for refrigerator |
| WO2023045154A1 (en) * | 2021-09-23 | 2023-03-30 | 合肥美的电冰箱有限公司 | Refrigerator fault detection method and apparatus |
| CN113916574A (en) * | 2021-09-30 | 2022-01-11 | 珠海格力电器股份有限公司 | Refrigerating unit inspection method, device, equipment and system |
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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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Application publication date: 20120718 |