CN103837755A - Refrigerator component fault detection method and system - Google Patents
Refrigerator component fault detection method and system Download PDFInfo
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- CN103837755A CN103837755A CN201210478754.9A CN201210478754A CN103837755A CN 103837755 A CN103837755 A CN 103837755A CN 201210478754 A CN201210478754 A CN 201210478754A CN 103837755 A CN103837755 A CN 103837755A
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Abstract
The invention relates to the technical field of electric appliance component faults, and discloses a refrigerator component fault detection method. The method comprises the following steps after all components of a refrigerator are installed and before whole-machine detection is performed on the refrigerator: S0, determining the types of the components; S1, according to the types of the components, adjusting the resistance of adjustable pull-up resistors connected with the components; S2, performing AD sampling on the voltage values of the components; and S3, determining whether AD sampling values are within a value range when the components of the corresponding types work normally, if so, determining that the components work normally, and otherwise, determining that faults occur in the components. The invention also discloses a refrigerator component fault detection system. By the method and system, components with faults in a refrigerator can be efficiently detected in advance rather than being discovered during whole-machine detection, and timely replacement is realized, thus the production efficiency and the whole-machine qualification rate are improved.
Description
Technical field
The present invention relates to electrical component fault technical field, particularly relate to a kind of refrigerator parts fault detection method and system.
Background technology
At present, the quality of the parts such as the temperature sensor of the household electrical appliance such as refrigerator, air door, heater strip is mainly the control by the qualification rate of manufacturer to product, but after parts are installed in complete machine, are damaged and do not work because the factor such as factor or complete machine structure of connecting line in installation process also may cause some parts.And after the parts installations such as temperature sensor, air door, heater strip, whether have damage phenomenon, can the problem such as normally work, only, after computer board installation, carry out when complete machine detects finding.Will return to production line and carry out the operation such as replacing of parts for the electrical equipment going wrong, not only time-consuming but also effort, has had a strong impact on production efficiency and complete machine qualification rate.
Also there is no at present a kind of method that can detect efficiently electrical component fault.
Summary of the invention
(1) technical matters that will solve
The technical matters that first the present invention will solve is: how to detect efficiently refrigerator parts fault.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of refrigerator parts fault detection method, described method, after all parts installations of refrigerator, carries out carrying out before complete machine detection to refrigerator, comprises the following steps:
S0, judge the type of parts;
The resistance of S1, the adjustable pull-up resistor that is connected with parts according to the type adjustment of described parts;
S2, the magnitude of voltage of parts is carried out to AD sampling;
S3, judge that AD sampled value whether in the span in the time that corresponding types parts are normally worked, if so, judges that parts are working properly, otherwise judge that parts break down.
Preferably, described adjustable pull-up resistor is digital regulation resistance.
Preferably, described parts are one at least in heater strip, air door and temperature sensor.
Preferably, in step S2, continue to read again after predetermined threshold value the AD sampled value of any time in Measuring Time, or, get Measuring Time and continue mean value in predetermined threshold value a period of time afterwards as read AD sampled value.
Preferably, described predetermined threshold value is 2 seconds.
Preferably, in step S3, judge that the fault that parts occur opens circuit as damage of components or wire harness.
Preferably, magnitude of voltage span when described parts are normally worked is determined by the resistance characteristic of parts.
The present invention also provides a kind of refrigerator parts fault detection system, and described system comprises microprocessor, and the peripheral module of microprocessor: human-computer interaction module and voltage acquisition module, wherein,
Described human-computer interaction module is for obtaining the type information of parts;
Described voltage acquisition module is for regulating the resistance of the adjustable pull-up resistor being connected with parts, so that measure the magnitude of voltage of parts;
Described microprocessor regulates and the magnitude of voltage of parts is carried out to AD sampling for the resistance of carrying out adjustable pull-up resistor according to voltage acquisition module described in described type information control, and judge that AD sampled value is whether in the span in the time that corresponding types parts are normally worked, if, judge that parts are working properly, otherwise judge that parts break down.
Preferably, described system also comprises the LED lamp being connected with described microprocessor, for show the judged result of microprocessor under the control of described microprocessor.
Preferably, described voltage collecting device is electric resistance partial pressure type circuit.
(3) beneficial effect
Technique scheme tool has the following advantages: the present invention is after the parts installation of refrigerator, enter before next process, parts are carried out to fault detect, the mode detecting is the magnitude of voltage that gathers reflection parts resistance characteristic, and judge that magnitude of voltage is whether in the span in the time that parts are normally worked, thereby detect parts and whether have fault, this method can shift to an earlier date and detects efficiently out of order parts, and change in time, and need not wait until when complete machine detects and just find, thereby enhance productivity and complete machine qualification rate.
Brief description of the drawings
Fig. 1 is method general flow chart of the present invention;
Fig. 2 is the method flow diagram of the embodiment of the present invention;
Fig. 3 is system architecture schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Illustrate the solution of the present invention below.
As shown in Figure 1, the invention provides a kind of refrigerator parts fault detection method, described method, after all parts (comprising heater strip, air door and temperature sensor) installation of refrigerator, carries out carrying out before complete machine detection to refrigerator, comprises the following steps:
S0, judge the type of parts;
The resistance of S1, the adjustable pull-up resistor that is connected with parts according to the type adjustment of described parts;
S2, the magnitude of voltage of parts is carried out to AD sampling;
S3, judge that AD sampled value (for digital quantity) whether in the span in the time that corresponding types parts are normally worked, if so, judges that parts are working properly, otherwise judge that parts break down.
Described adjustable pull-up resistor is digital regulation resistance.
In the present embodiment, in step S2, after continuing 2 seconds, Measuring Time reads again AD sampled value, can obtain so stable numerical value, or, get Measuring Time and continue after predetermined threshold value the mean value in a period of time as read AD sampled value, this can make the AD sampled value that obtains more accurate.
In the present embodiment, in step S2, judge that the fault that parts occur for example opens circuit as damage of components or wire harness.
In the present embodiment, AD sampled value span when described parts are normally worked is determined by the resistance characteristic of parts, the span of concrete each parts as shown in Figure 2, can find out, for heater strip and air door, its AD sampled value span is 400 ~ 600, and for temperature sensor, its span is 200 ~ 600.
As shown in Figure 2, the present invention also provides a kind of refrigerator parts fault detection system, and described system comprises microprocessor 1, and the peripheral module of microprocessor 1: human-computer interaction module 2 and voltage acquisition module 3, wherein,
Described human-computer interaction module 2 is for obtaining the type information of parts;
Described voltage acquisition module 3 is for regulating the resistance of the adjustable pull-up resistor being connected with parts, so that measure the magnitude of voltage of parts;
Described microprocessor 1 regulates for the resistance of carrying out adjustable pull-up resistor according to voltage acquisition module described in described type information control, microprocessor is also for carrying out AD sampling to the magnitude of voltage of parts, and judge that AD sampled value is whether in the span in the time that corresponding types parts are normally worked, if, judge that parts are working properly, otherwise judge that parts break down.
In the present embodiment, described system also comprises the LED lamp 4 being connected with described microprocessor 1, for showing the judged result of microprocessor 1 under the control at described microprocessor 1.Particularly, if judge, parts are working properly, and microprocessor control LED lamp gives a green light, if judge, parts break down, and control LED lamp and send out a warning.
In the present embodiment, described voltage acquisition module 3 is electric resistance partial pressure type circuit, comprising adjustable pull-up resistor as with the parts of parts (thering is certain resistance) dividing potential drop, adjustable pull-up resistor can be realized with digital regulation resistance.
Detection system of the present invention can detect the parts of multiple refrigerators simultaneously; The parts type on each road wherein, can be set by human-computer interaction device.
In order to make the AD sampled value of parts in OK range, the resistance of the pull-up resistor that different parts need is different.Therefore, the present invention realizes adjustable pull-up resistor with digital regulation resistance, detects to adapt to different parts, increases dirigibility and the versatility of detection system, as shown in Figure 3.In the time detecting the refrigerator of a certain model, the type of each road parts need to be set, to regulate digital regulation resistance to suitable resistance.
After pick-up unit powers on, be set to suitable resistance according to the parts type digital regulation resistance on each road; When after the parts installations such as temperature sensor, air door, heater strip, connection terminal is connected to this detection system, and hit testing starts button, gathers the AD sampled value of each road parts, as thought in OK range, parts are working properly, otherwise judge that parts are abnormal.In several seconds, can complete test, then utilize LED lamp to show that whether parts work is normal.
As can be seen from the above embodiments, the present invention is after the parts installation of refrigerator, enter before next process, parts are carried out to fault detect, the mode detecting is the magnitude of voltage that gathers reflection parts resistance characteristic, and judge that magnitude of voltage is whether in the span in the time that parts are normally worked, thereby detect parts and whether have fault, this method can shift to an earlier date and detects efficiently out of order parts (can complete test in 3 seconds), and change in time, and need not wait until when complete machine detects and just find, thereby enhance productivity and complete machine qualification rate.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. a refrigerator parts fault detection method, is characterized in that, described method, after all parts installations of refrigerator, carries out carrying out before complete machine detection to refrigerator, comprises the following steps:
S0, judge the type of parts;
The resistance of S1, the adjustable pull-up resistor that is connected with parts according to the type adjustment of described parts;
S2, the magnitude of voltage of parts is carried out to AD sampling;
S3, judge that AD sampled value whether in the span in the time that corresponding types parts are normally worked, if so, judges that parts are working properly, otherwise judge that parts break down.
2. the method for claim 1, is characterized in that, described adjustable pull-up resistor is digital regulation resistance.
3. the method for claim 1, is characterized in that, described parts are one at least in heater strip, air door and temperature sensor.
4. the method for claim 1, it is characterized in that, in step S2, after Measuring Time continues predetermined threshold value, read again the AD sampled value of any time, or, get Measuring Time and continue after predetermined threshold value the mean value in a period of time as read AD sampled value.
5. method as claimed in claim 4, is characterized in that, described predetermined threshold value is 2 seconds.
6. the method for claim 1, is characterized in that, in step S3, judges that the fault that parts occur opens circuit as damage of components or wire harness.
7. the method as described in any one in claim 1 ~ 6, is characterized in that, magnitude of voltage span when described parts are normally worked is determined by the resistance characteristic of parts.
8. a refrigerator parts fault detection system, is characterized in that, described system comprises microprocessor, and the peripheral module of microprocessor: human-computer interaction module and voltage acquisition module, wherein,
Described human-computer interaction module is for obtaining the type information of parts;
Described voltage acquisition module is for regulating the resistance of the adjustable pull-up resistor being connected with parts, so that measure the magnitude of voltage of parts;
Described microprocessor regulates for the resistance of carrying out adjustable pull-up resistor according to voltage acquisition module described in described type information control, also for the magnitude of voltage of parts is carried out to AD sampling, and judge that AD sampled value is whether in the span in the time that corresponding types parts are normally worked, if, judge that parts are working properly, otherwise judge that parts break down.
9. system as claimed in claim 8, is characterized in that, described system also comprises the LED lamp being connected with described microprocessor, for show the judged result of microprocessor under the control of described microprocessor.
10. method as claimed in claim 8 or 9, is characterized in that, described voltage collecting device is electric resistance partial pressure type circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210478754.9A CN103837755A (en) | 2012-11-22 | 2012-11-22 | Refrigerator component fault detection method and system |
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| CN201210478754.9A CN103837755A (en) | 2012-11-22 | 2012-11-22 | Refrigerator component fault detection method and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465960A (en) * | 2015-12-23 | 2016-04-06 | 广东志高暖通设备股份有限公司 | Temperature sensor identification method for air conditioner, and air conditioner |
| CN106370095A (en) * | 2016-08-25 | 2017-02-01 | 合肥美菱股份有限公司 | Electric air door position detection method |
| CN108917270A (en) * | 2018-04-26 | 2018-11-30 | 青岛海尔股份有限公司 | The defrost monitoring method and monitoring system of refrigerator |
| CN114236273A (en) * | 2021-12-02 | 2022-03-25 | 长沙格力暖通制冷设备有限公司 | Performance detection method and device and detection equipment |
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Cited By (5)
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| CN105465960A (en) * | 2015-12-23 | 2016-04-06 | 广东志高暖通设备股份有限公司 | Temperature sensor identification method for air conditioner, and air conditioner |
| CN106370095A (en) * | 2016-08-25 | 2017-02-01 | 合肥美菱股份有限公司 | Electric air door position detection method |
| CN108917270A (en) * | 2018-04-26 | 2018-11-30 | 青岛海尔股份有限公司 | The defrost monitoring method and monitoring system of refrigerator |
| CN108917270B (en) * | 2018-04-26 | 2021-05-25 | 海尔智家股份有限公司 | Defrosting monitoring method and system for refrigerator |
| CN114236273A (en) * | 2021-12-02 | 2022-03-25 | 长沙格力暖通制冷设备有限公司 | Performance detection method and device and detection equipment |
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Application publication date: 20140604 |