CN104730366A - Fault diagnosis and maintenance assisting device for household appliances - Google Patents
Fault diagnosis and maintenance assisting device for household appliances Download PDFInfo
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- CN104730366A CN104730366A CN201310720022.0A CN201310720022A CN104730366A CN 104730366 A CN104730366 A CN 104730366A CN 201310720022 A CN201310720022 A CN 201310720022A CN 104730366 A CN104730366 A CN 104730366A
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Abstract
The invention belongs to the technical field of fault detection, and provides a fault diagnosis and maintenance assisting device for household appliances. In the fault diagnosis and maintenance assisting device for the household appliances, power detection on electricity loads in the household appliances is carried out through a power detection module so as to rapidly achieve load fault diagnosis; voltage and/or current detection is carried out on electronic control plates in the household appliances through an electronic control plate detection module so as to rapidly achieve electronic control plate fault diagnosis; a corresponding maintenance guide prompt is given out through a maintenance guide module according to load fault data and electronic control plate fault data so as to allow a maintenance person to accurately and effectively maintain the household appliances, the fault diagnosis and maintenance efficiency is improved, the load fault data and the electronic control plate fault data can be fed back to a household appliance manufacturer, and the household appliance manufacturer can conveniently and accordingly make a targeted improvement so as to improve the product quality.
Description
Technical field
The invention belongs to fault detection technique field, particularly relate to a kind of fault diagnosis for household electrical appliance and auxiliary apparatus for repairing.
Background technology
At present, household electrical appliance (as dish-washing machine, washing machine, refrigerator etc.) have been widely used in daily life.After household electrical appliance use a period of time, due to the wearing and tearing of internals and the aging of components and parts, household electrical appliance can be caused normally to work, now, then need to carry out fault detect and investigation to household electrical appliance, to keep in repair household electrical appliance in time.
Prior art is generally detected household electrical appliance by maintenance personal's operation detection instrument, and judges whether household electrical appliance break down by maintenance personal according to testing result.But, because the personnel of needing repairing judge voluntarily, this just easily causes judged result to occur deviation because of the professional standards difference of maintenance personal, and then the inaccurate problem of the diagnostic result that breaks down, and failure detection time also can correspondingly extend, be unfavorable for carrying out fault diagnosis and maintenance fast to household electrical appliance; Moreover, each time maintenance after be all by maintenance personal by after-sales service information feed back to manufacturer, due to the interference of human factor, pointed improvement final the obtained feedback information of manufacturer can be caused objective not, comprehensive and accurate, so just cannot be made to improve the quality of products according to the after-sales service information of feedback to household electronic products by manufacturer.
In sum, prior art exists cannot carry out fault diagnosis and maintenance to household electrical appliance rapidly and accurately, and directly cannot feed back objective and accurate repair message to the problem of manufacturer.
Summary of the invention
The object of the present invention is to provide a kind of for for the fault diagnosis of household electrical appliance and auxiliary apparatus for repairing, be intended to solve and cannot carry out fault diagnosis and maintenance to household electrical appliance rapidly and accurately existing for prior art, and directly cannot feed back objective and accurate repair message to the problem of manufacturer.
The present invention is achieved in that a kind of fault diagnosis for household electrical appliance and auxiliary apparatus for repairing, and it comprises:
Power detection module, to carrying out power detection one by one by electric loading in household electrical appliance during for running on on-line checkingi pattern at household electrical appliance, and judge whether the present load power detected continues to be in preset standard power interval within a preset time interval, if, then judge current normal in survey load, if not, then judge currently to break down in survey load, and output load failure message;
Electric-controlled plate detection module, when running on on-line checkingi pattern for the electric-controlled plate in household electrical appliance, one by one voltage detecting and/or current detecting are carried out to each several part circuit in described electric-controlled plate, when carrying out voltage detecting to described electric-controlled plate, judge whether the circuit voltage detected is in preset standard voltage range, if so, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message; When carrying out current detecting to described electric-controlled plate, judging whether the circuital current that detects is between preset standard Current Zone, if so, then judging current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message; When carrying out voltage detecting and current detecting to described electric-controlled plate, whether the circuit voltage that judgement detects and circuital current are between described preset standard voltage range and described preset standard Current Zone respectively, if, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message;
Module is guided in maintenance, be connected with described power detection module and described electric-controlled plate detection module, the fault information exported for the load faulty information that exports described power detection module or described electric-controlled plate detection module shows, and sends corresponding maintenance and guide prompting;
Failure message logging modle, be connected with described power detection module and described electric-controlled plate detection module, for described power detection module is judged current when surveying load and breaking down detected present load power and the load faulty information that exports preserve using as load faulty data; And for judging that to described electric-controlled plate detection module the current circuit voltage detected when slowdown monitoring circuit breaks down and/or circuital current and the fault information exported are preserved using as electric-controlled plate fault data;
Failure message feedback module, is connected with described failure message logging modle, is fed back to the data terminal of household electrical appliances manufacturer for the described load faulty data of described failure message logging modle being preserved and described electric-controlled plate fault data by radio communication.
In addition, described fault diagnosis and auxiliary apparatus for repairing also comprise electrical parameters detection module, be connected with described failure message logging modle, for judged at described electric-controlled plate detection module current break down at slowdown monitoring circuit time, at slowdown monitoring circuit, current detecting, voltage detecting and power detection are carried out to current corresponding to described fault information, and the circuital current detected, circuit voltage and circuit power are shown as electrical quantity information.
The current failure cause at slowdown monitoring circuit is determined according to described electrical quantity information maintenance personal, and when guiding module to carry out maintenance guide acquisition operation according to described failure cause to described maintenance, described maintenance guide module is guided acquisition to operate according to described maintenance and is sent the prompting of maintenance guide accordingly.
Described electrical quantity information and described failure cause are preserved by described failure message logging modle.
Described electrical quantity information and described failure cause are fed back to the data terminal of household electrical appliances manufacturer by radio communication by described failure message feedback module.
The present invention comprises power detection module by employing, electric-controlled plate detection module, module is guided in maintenance, the fault diagnosis for household electrical appliance of failure message logging modle and failure message feedback module and auxiliary apparatus for repairing, carry out power detection to each in household electrical appliance by electric loading by power detection module to diagnose to realize load faulty fast, by electric-controlled plate detection module, voltage and/or current detecting are carried out to realize electric-controlled plate fault diagnosis fast to the electric-controlled plate in household electrical appliance, and guide module to send corresponding maintenance guide prompting so that maintenance personal keeps in repair accurately and effectively to household electrical appliance according to load faulty data and electric-controlled plate fault data by maintenance, improve fault diagnosis and maintenance efficiency, and load faulty data and electric-controlled plate fault data can be fed back to household electrical appliances manufacturer, be convenient to household electrical appliances manufacturer and make pointed improvement according to this with Improving The Quality of Products.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention provide for the fault diagnosis of household electrical appliance and the structural representation of auxiliary apparatus for repairing;
Fig. 2 is another structural representation of the fault diagnosis for household electrical appliance that provides of the embodiment of the present invention and auxiliary apparatus for repairing.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 show that the embodiment of the present invention provides for the fault diagnosis of household electrical appliance and the structure of auxiliary apparatus for repairing, for convenience of explanation, illustrate only part related to the present invention, details are as follows:
The fault diagnosis for household electrical appliance that the embodiment of the present invention provides and auxiliary apparatus for repairing comprise power detection module 100, electric-controlled plate detection module 200, keep in repair and guide module 300, failure message logging modle 400 and failure message feedback module 500.
Power detection module 100 is for running on on-line checkingi pattern during at household electrical appliance, one by one power detection is carried out to the use electric loading (as the motor in dish-washing machine, water pump) in household electrical appliance, and judge whether the present load power detected continues to be in preset standard power interval within a preset time interval, if, then judge current normal in survey load, if not, then judge currently to break down in survey load, and output load failure message.
Wherein, household electrical appliance run on on-line checkingi pattern refer to household electrical appliance according to preset its inside of detection control programmed control each with electric loading one by one according to normal operating conditions run so that power detection module 100 carries out fault detect one by one to each electric loading.Preset standard power interval is the power level scope according to each pre-sets with the rated power of electric loading in tested household electrical appliance, such as, the preset standard power interval of the motor of the washing mechanism in dish-washing machine is (1900W, 2100W), and power unit is W(watt).In fact power detection module 100 is exactly to the power detection continued by electric loading within a period of time (i.e. prefixed time interval), and judge whether the current power surveying load during this period of time maintains in preset standard power interval always, if, then show current normal in survey load, if not, then show current survey load break down.
Electric-controlled plate detection module 200 carries out voltage detecting and/or current detecting one by one to each several part circuit (as power-supplying circuit, motor-drive circuit etc.) in electric-controlled plate when running on on-line checkingi pattern for the electric-controlled plate in household electrical appliance.
When electric-controlled plate detection module 200 pairs of electric-controlled plates carry out voltage detecting, judge whether the circuit voltage detected is in preset standard voltage range, if, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message.
When electric-controlled plate detection module 200 pairs of electric-controlled plates carry out current detecting, judge whether the circuital current detected is between preset standard Current Zone, if, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message.
When electric-controlled plate detection module 200 pairs of electric-controlled plates carry out voltage detecting and current detecting, whether the circuit voltage that judgement detects and circuital current are between preset standard voltage range and preset standard Current Zone respectively, if, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message.
Wherein, electric-controlled plate runs on on-line checkingi pattern and refers to that electric-controlled plate runs, so that electric-controlled plate detection module 200 carries out fault detect one by one to every partial circuit according to normal operating conditions one by one according to each several part circuit of preset its inside of detection control programmed control.Between preset standard Current Zone be the rated current according to each several part circuit on the electric-controlled plate in tested household electrical appliance and the current level scope pre-set, between preset standard Current Zone be the rated voltage according to each several part circuit on the electric-controlled plate in tested household electrical appliance and the voltage level scope pre-set.
Maintenance guides module 300 to be connected with power detection module 100 and electric-controlled plate detection module 200, the fault information that maintenance guides module 300 to export for the load faulty information that exports power detection module 100 or electric-controlled plate detection module 200 shows, and sends corresponding maintenance and guide prompting.
Wherein, load faulty information refers to the name information of the use electric loading broken down in household electrical appliance; Fault information refers to the name information of the circuit that the electric-controlled plate of household electrical appliance breaks down.
Failure message logging modle 400 is connected with power detection module 100 and electric-controlled plate detection module 200, failure message logging modle 400 for power detection module 100 is judged current when surveying load and breaking down detected present load power and the load faulty information that exports preserve using as load faulty data.And failure message logging modle 400 is for judging that to electric-controlled plate detection module the current circuit voltage detected when slowdown monitoring circuit breaks down and/or circuital current and the fault information exported are preserved using as electric-controlled plate fault data.
Wherein, it should be noted that, load faulty data comprise present load power and load faulty information exactly, and the power when name information of the use electric loading broken down so just can be made to break down with it forms corresponding relation, and is stored in failure message logging modle 400; In like manner, fault data comprise circuit voltage and/or circuital current and fault information exactly, the voltage when name information of the circuit broken down is broken down with it and/or electric current form corresponding relation, and are stored in failure message logging modle 400.
Failure message feedback module 500 is connected with failure message logging modle 400, and failure message feedback module 500 feeds back to the data terminal of household electrical appliances manufacturer for the load faulty data of failure message logging modle 400 being preserved and electric-controlled plate fault data by radio communication.
In addition, when electric-controlled plate detection module 200 detect certain current break down at slowdown monitoring circuit time, if circuit structure is comparatively complicated, just there will be cannot the phenomenon of the accurate concrete reason of failure judgement, such as: electric-controlled plate detection module 200 detects that the motor-drive circuit on electric-controlled plate breaks down, but because motor-drive circuit comprises main control chip and peripheral circuit thereof, electric-controlled plate detection module 200 can not judge the device specifically broken down exactly, also just cannot determine the concrete reason broken down.Therefore, in order to realize more accurate fault diagnosis to the electric-controlled plate in household electrical appliance, the fault diagnosis that the embodiment of the present invention provides and auxiliary apparatus for repairing also comprise electrical parameters detection module 600, as shown in Figure 2, it is connected with failure message logging modle 400, for judged at electric-controlled plate detection module 200 current break down at slowdown monitoring circuit time, at slowdown monitoring circuit, current detecting, voltage detecting and power detection are carried out to current corresponding to fault information, and the circuital current detected, circuit voltage and circuit power are shown as electrical quantity information.It can thus be appreciated that electrical parameters detection module 600 can realize the function of multimeter and power meter to carry out electric current, voltage and power detection to circuit.
The current failure cause at slowdown monitoring circuit is determined according to electrical quantity information maintenance personal, and when guiding module 300 to carry out maintenance guide acquisition operation according to this failure cause to maintenance, maintenance is guided module 300 to guide acquisition operation to send corresponding maintenance according to this maintenance and is guided prompting, and, above-mentioned electrical quantity information and failure cause are preserved by failure message logging modle 400, and above-mentioned electrical quantity information and failure cause can be fed back to the data terminal of household electrical appliances manufacturer by radio communication by failure message feedback module 500.
Further, maintenance guides module 300 specifically to comprise master controller, storage unit and display unit.Master controller drives display unit to show load faulty information or fault information, read corresponding maintenance according to load faulty information or fault information from storage unit simultaneously and guide prompting, and drive display unit to guide prompting to show to maintenance.Wherein, master controller can be single-chip microcomputer or arm processor; Above-mentioned maintenance guides reminder-data storehouse to be built in storage unit in advance, maintenance is guided reminder-data storehouse to contain the maintenance corresponding with various load faulty information and fault information and is guided and point out, storage unit is nonvolatile memory, as EPROM(Erasable Programmable Read-OnlyMemory EPROM (Erasable Programmable Read Only Memory)), EEPROM(Electrically ErasableProgrammable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)) or FLASH(flash memory); Display unit can be LCD display or LED display.
Further, failure message logging modle 400 inside comprises a storer, and this storer is for preserving above-mentioned load faulty data and electric-controlled plate fault data, and this storer can be EPROM, EEPROM or FLASH.
Further, failure message feedback module 500 comprises wireless communication unit and pluggable storage medium, and the load faulty data that failure message logging modle 400 is preserved based on blue-tooth technology or WIFI communication technology by wireless communication unit and electric-controlled plate fault data send to the data terminal of household electrical appliances manufacturer; Pluggable storage medium is used for the load faulty data of preserving failure message logging modle 400 and electric-controlled plate fault data carries out back-up storage.When maintenance personal needs load faulty data and electric-controlled plate fault data collection and feeds back to household electrical appliances manufacturer, can directly above-mentioned pluggable storage medium be taken out from failure message feedback module 500 and return to household electrical appliances manufacturer, pluggable storage medium can be SD card (SecureDigital Card, safe digital card), memory stick (MS, Memory Stick) or the storage card such as mmc card (MultiMediaCard, multimedia storage card).
The present invention comprises power detection module 100 by employing, electric-controlled plate detection module 200, module 300 is guided in maintenance, the fault diagnosis for household electrical appliance of failure message logging modle 400 and failure message feedback module 500 and auxiliary apparatus for repairing, carry out power detection by each in power detection module 100 pairs of household electrical appliance by electric loading to diagnose to realize load faulty fast, voltage and/or current detecting is carried out to realize electric-controlled plate fault diagnosis fast by the electric-controlled plate in electric-controlled plate detection module 200 pairs of household electrical appliance, and guide module 300 to send corresponding maintenance guide prompting so that maintenance personal keeps in repair accurately and effectively to household electrical appliance according to load faulty data and electric-controlled plate fault data by maintenance, improve fault diagnosis and maintenance efficiency, and load faulty data and electric-controlled plate fault data can be fed back to household electrical appliances manufacturer, be convenient to household electrical appliances manufacturer and make pointed improvement according to this with Improving The Quality of Products.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. for fault diagnosis and the auxiliary apparatus for repairing of household electrical appliance, it is characterized in that, described fault diagnosis and auxiliary apparatus for repairing comprise:
Power detection module, to carrying out power detection one by one by electric loading in household electrical appliance during for running on on-line checkingi pattern at household electrical appliance, and judge whether the present load power detected continues to be in preset standard power interval within a preset time interval, if, then judge current normal in survey load, if not, then judge currently to break down in survey load, and output load failure message;
Electric-controlled plate detection module, when running on on-line checkingi pattern for the electric-controlled plate in household electrical appliance, one by one voltage detecting and/or current detecting are carried out to each several part circuit in described electric-controlled plate, when carrying out voltage detecting to described electric-controlled plate, judge whether the circuit voltage detected is in preset standard voltage range, if so, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message; When carrying out current detecting to described electric-controlled plate, judging whether the circuital current that detects is between preset standard Current Zone, if so, then judging current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message; When carrying out voltage detecting and current detecting to described electric-controlled plate, whether the circuit voltage that judgement detects and circuital current are between described preset standard voltage range and described preset standard Current Zone respectively, if, then judge current normal at slowdown monitoring circuit, if not, then judge currently to break down at slowdown monitoring circuit, and output circuit failure message;
Module is guided in maintenance, be connected with described power detection module and described electric-controlled plate detection module, the fault information exported for the load faulty information that exports described power detection module or described electric-controlled plate detection module shows, and sends corresponding maintenance and guide prompting;
Failure message logging modle, be connected with described power detection module and described electric-controlled plate detection module, for described power detection module is judged current when surveying load and breaking down detected present load power and the load faulty information that exports preserve using as load faulty data; And for judging that to described electric-controlled plate detection module the current circuit voltage detected when slowdown monitoring circuit breaks down and/or circuital current and the fault information exported are preserved using as electric-controlled plate fault data;
Failure message feedback module, is connected with described failure message logging modle, is fed back to the data terminal of household electrical appliances manufacturer for the described load faulty data of described failure message logging modle being preserved and described electric-controlled plate fault data by radio communication.
2. fault diagnosis as claimed in claim 1 and auxiliary apparatus for repairing, it is characterized in that, described fault diagnosis and auxiliary apparatus for repairing also comprise electrical parameters detection module;
Described electrical parameters detection module is connected with described failure message logging modle, described electrical parameters detection module be used for described electric-controlled plate detection module judged current break down at slowdown monitoring circuit time, at slowdown monitoring circuit, current detecting, voltage detecting and power detection are carried out to current corresponding to described fault information, and the circuital current detected, circuit voltage and circuit power are shown as electrical quantity information;
The current failure cause at slowdown monitoring circuit is determined according to described electrical quantity information maintenance personal, and when guiding module to carry out maintenance guide acquisition operation according to described failure cause to described maintenance, described maintenance guide module is guided acquisition to operate according to described maintenance and is sent the prompting of maintenance guide accordingly;
Described electrical quantity information and described failure cause are preserved by described failure message logging modle;
Described electrical quantity information and described failure cause are fed back to the data terminal of household electrical appliances manufacturer by radio communication by described failure message feedback module.
3. fault diagnosis as claimed in claim 1 and auxiliary apparatus for repairing, is characterized in that, described maintenance guides module to comprise master controller, storage unit and display unit; Described master controller drives described display unit to show described load faulty information or described fault information, read corresponding maintenance according to described load faulty information or described fault information from described storage unit and guide prompting, and drive described display unit to guide prompting to show to described maintenance.
4. fault diagnosis as claimed in claim 3 and auxiliary apparatus for repairing, it is characterized in that, described master controller is single-chip microcomputer or arm processor.
5. fault diagnosis as claimed in claim 3 and auxiliary apparatus for repairing, it is characterized in that, described storage unit is nonvolatile memory.
6. fault diagnosis as claimed in claim 3 and auxiliary apparatus for repairing, it is characterized in that, described display unit is LCD display or LED display.
7. fault diagnosis as claimed in claim 1 and auxiliary apparatus for repairing, it is characterized in that, described failure message logging modle comprises a storer, and described storer is for preserving described load faulty data and described electric-controlled plate fault data, and described storer is EPROM, EEPROM or FLASH.
8. fault diagnosis as claimed in claim 1 and auxiliary apparatus for repairing, it is characterized in that, described failure message feedback module comprises wireless communication unit and pluggable storage medium;
The load faulty data that described failure message logging modle is preserved based on blue-tooth technology or WIFI communication technology by described wireless communication unit and electric-controlled plate fault data send to the data terminal of household electrical appliances manufacturer;
Described pluggable storage medium is used for the load faulty data of preserving described failure message logging modle and electric-controlled plate fault data carries out back-up storage.
9. fault diagnosis as claimed in claim 8 and auxiliary apparatus for repairing, it is characterized in that, described pluggable storage medium is SD card, memory stick or mmc card.
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Effective date of registration: 20220907 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: MIDEA GROUP Co.,Ltd. Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. |