CN104764288A - Refrigerator detection method of dynamic cooling line - Google Patents
Refrigerator detection method of dynamic cooling line Download PDFInfo
- Publication number
- CN104764288A CN104764288A CN201510116974.0A CN201510116974A CN104764288A CN 104764288 A CN104764288 A CN 104764288A CN 201510116974 A CN201510116974 A CN 201510116974A CN 104764288 A CN104764288 A CN 104764288A
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- China
- Prior art keywords
- refrigerator
- temperature
- master control
- host computer
- control borad
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
Abstract
The invention provides a refrigerator detection method of a dynamic cooling line. When the refrigerator enters dynamic detection line, an operator inserts a communication connection wire of an upper computer into a communication connector of a main control panel, operates the refrigerator display panel for entering the inspection procedure, collects temperature data of temperature sensing head in each temperature region of the refrigerator and the running state of the refrigerator (including fault code), sends the data to a main computer in a wireless manner for drawing a temperature curve, and judges whether the refrigerator is qualified or not by judging the consistency with a standard curve model. According to the detection method, external temperature sensing head is not needed; the main control panel of the refrigerator is directly used for collecting temperature data of temperature sensing head in each temperature region of the refrigerator and the running state of the refrigerator, the external temperature sensing head is saved and the positioning manual work for the sensing head can be saved and the test precision is guaranteed. According to the improvement, the efficiency of the production line is improved, one-pass rate is improved and obvious economic benefit is achieved.
Description
Technical field
The present invention relates to refrigerator technical field, what be specifically related to is a kind of refrigerator detection method of dynamic system cold line.
Background technology
The existing refrigerator detection line that dynamically freezes is all generally adopt external temperature-sensitive head to detect the temperature of each warm area of refrigerator, then draws temperature curve, by judging to judge that whether modified line is qualified with the uniformity of the curve model of standard.This method needs manually to carry out placement temperature-sensitive head, and if the inaccurate words of temperature-sensitive head placement location, can measuring accuracy be had influence on.
Summary of the invention
Because described in background technology, the object of this invention is to provide a kind of novel method not needing external temperature-sensitive head just can realize each warm area temperature of refrigerator.
The object of the invention is to be achieved through the following technical solutions:
A refrigerator detection method for dynamic system cold line, it comprises the following steps:
Connect the master control borad of refrigerator and the host computer of detection of dynamic line;
Master control borad initiatively sends signal to communication interface with pc, sends 1 time at interval of 1 second.Transmission content mainly contains: the failure code etc. of the temperature of each temperature-sensitive head, refrigerator running status and refrigerator.
Only open defrosting heater t1,1 second <t1<30 second, all temperature temperature-sensitive heads and door switch are detected within this t1 second;
If there is refrigeration fan, open t1 second;
Turn off all load t1 second;
Only open freezing fan t1 second;
If there is vertical beam heater, only open vertical beam heater t1 second;
If there is frequency conversion press, rise one grade of rotating speed until maximum second with minimum speed every t1;
If there is fault, refrigeration numeral method failure code; If have multiple, each second wheel stream shows;
Press and evaporator fan start immediately, and refrigeration air door is closed;
T2,5 minutes <t2<30 minute, rear refrigeration air door is opened;
T3,10 minutes <t3<60 minute, detect refrigeration cooling >=T1,2 DEG C of <T1<15 DEG C, then show special symbol and represent OK after minute, otherwise display actual temperature; Detect frozen cooling >=T2,5 DEG C of <T2<30 DEG C, then show special symbol and represent OK, otherwise display actual temperature;
Retain display, refrigerator is worked on by the design temperature that dispatches from the factory;
T4,30 minutes <t4<90 minute, rear press, evaporator fan, refrigeration air door are closed; Open defrosting heater, until exit defrost;
Automatically exit commodity inspection program, refrigerator works on by the design temperature that dispatches from the factory.
Preferably, the master control borad of described refrigerator and the communication of described host computer are by UART interface, adopt 5V, Transistor-Transistor Logic level.
The master control borad of described refrigerator and the communication modes of described host computer adopt refrigerator master control borad to move transmission information to upper owner, sent 1 time at interval of 1 second, periodically sends in whole test process.
After the master control borad of described refrigerator is connected with described host computer, when refrigerator enters the condition of commodity inspection pattern: meet refrigerating chamber observed temperature >T3, and refrigerating chamber observed temperature >T3 and, evaporimeter observed temperature >T3,0 DEG C <T3<20 DEG C and pin " freezing temperature adjustment key+refrigeration temperature adjustment key " t5,1<t5<10 second, enter commodity inspection pattern.
Described host computer is wireless with a main frame or finite data is connected, and described main frame is used for carrying out Treatment Analysis to the data of host computer conveying.
In described test process, master control borad gives each load supplying regular hour of refrigerator separately, be convenient to the power curve that power samples module measures single load like this, compared by power curve and curve model, just can judge whether the load of refrigerator connects well, whether work is normal.
Compared to prior art, the present invention has the following advantages:
According to detection method of the present invention, do not need external temperature-sensitive head, directly utilize the master control borad of refrigerator itself to the running status (comprising failure code) of each warm area temperature-sensitive head temperature data and refrigerator of collecting refrigerator self, pass through serial communication interface, the data collected are sent to host computer, then be wirelessly sent to host computer and draw temperature curve, by judging to judge that whether refrigerator is qualified with the uniformity of the curve model of standard.Like this, both eliminated the artificial of external temperature-sensitive head and placement, also assures that the precision of test.By improving, the efficiency on production line improves, and a passband also improves, and creates obvious economic benefit.
Accompanying drawing explanation
Fig. 1 is the system principle schematic diagram of the detection system of the embodiment of the present invention.
Detailed description of the invention
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.
The present embodiment provide a kind of utilize the master control borad of refrigerator itself to dispatch from the factory before the novel detection method of detection, as shown in Figure 1, comprise the following steps:
Connect the master control borad of refrigerator and the host computer of detection of dynamic line, host computer is connected with a main frame (preferred computer) wireless signal: when refrigerator enters detection of dynamic line, the communication wire of host computer is inserted the communication interface of the master control borad of refrigerator by operator, operation refrigerator display floater, enter commodity inspection program, each warm area temperature-sensitive head temperature data of refrigerator self and the running status (comprising failure code) of refrigerator is collected by commodity inspection program, then be wirelessly sent to host computer and draw temperature curve, by judging to judge that whether modified line is qualified with the uniformity of the curve model of standard.
Refrigerator master control borad initiatively sends signal to communication interface with pc, sends 1 time at interval of 1 second; Transmission content mainly contains: the failure code etc. of the temperature of each temperature-sensitive head, refrigerator running status and refrigerator.
Concrete commodity inspection program is:
Only open defrosting heater 7 seconds, all temperature temperature-sensitive heads and door switch are detected in these 7 seconds;
If there is refrigeration fan, open 7 seconds;
Turn off all loads 7 seconds;
Only open freezing fan 7 seconds;
If there is vertical beam heater, only drive vertical beam heater 7 seconds;
If there is frequency conversion press, within every 7 seconds, rise one grade of rotating speed until maximum with minimum speed;
If there is fault, refrigeration numeral method failure code; If have multiple, each second wheel stream shows;
Press and evaporator fan start immediately, and refrigeration air door is closed;
Refrigerate air door after 10 minutes to open;
Detect refrigeration cooling >=5 DEG C after 50 minutes and then refrigerate display " 88 ", otherwise display actual temperature; Detect frozen cooling >=15 DEG C then freezing display " 88 ", otherwise display actual temperature;
Retain display, refrigerator is worked on by the design temperature that dispatches from the factory;
After 80 minutes, press, evaporator fan, refrigeration air door are closed; Open defrosting heater, until exit defrost;
Automatically exit commodity inspection program, refrigerator works on by the design temperature that dispatches from the factory.
Concrete, the master control borad of described refrigerator and the communication of described host computer are by UART interface, adopt 5V, Transistor-Transistor Logic level.
Preferably, the master control borad of described refrigerator and the communication modes of described host computer adopt refrigerator master control borad to move transmission information to upper owner, sent 1 time at interval of 1 second.
Preferably, after the master control borad of described refrigerator is connected with described host computer, the condition that refrigerator enters commodity inspection pattern is: meet Tr (refrigerating chamber observed temperature) >3 and Tf (refrigerating chamber observed temperature) >3 and Tv (evaporimeter observed temperature) >3 and pin " freezing temperature adjustment key+refrigeration temperature adjustment key " 5 seconds, enter commodity inspection pattern.
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 (6)
1. a refrigerator detection method for dynamic system cold line, it is characterized in that, it comprises the following steps:
Connect the master control borad of refrigerator and the host computer of detection of dynamic line;
The master control borad of described refrigerator initiatively sends signal to the communication interface of described host computer, sends 1 time at interval of about 1 second, periodically sends in whole test process; Described transmission signal comprises: the failure code etc. of the temperature of each temperature-sensitive head, refrigerator running status and refrigerator.
2. detection method according to claim 1, is characterized in that, the testing process of described master control borad comprises:
Only open defrosting heater t1,1 second <t1<30 second, all temperature temperature-sensitive heads and door switch are detected within this t1 second;
If there is refrigeration fan, open t1 second;
Turn off all load t1 second;
Only open freezing fan t1 second;
If there is vertical beam heater, only open vertical beam heater t1 second;
If there is frequency conversion press, rise one grade of rotating speed until maximum second with minimum speed every t1;
If there is fault, refrigeration numeral method failure code; If have multiple, each second wheel stream shows;
Press and evaporator fan start immediately, and refrigeration air door is closed;
T2,5 minutes <t2<30 minute, rear refrigeration air door is opened;
T3,10 minutes <t3<60 minute, detect refrigeration cooling >=T1,2 DEG C of <T1<15 DEG C, then show special symbol and represent OK after minute, otherwise display actual temperature; Detect frozen cooling >=T2,5 DEG C of <T2<30 DEG C, then show special symbol and represent OK, otherwise display actual temperature;
Retain display, refrigerator is worked on by the design temperature that dispatches from the factory;
T4,30 minutes <t4<90 minute, rear press, evaporator fan, refrigeration air door are closed; Open defrosting heater, until exit defrost;
Automatically exit commodity inspection program, refrigerator works on by the design temperature that dispatches from the factory.
3. method according to claim 2, is characterized in that: preferred, the master control borad of described refrigerator and the communication of described host computer are by UART interface, adopts 5V, Transistor-Transistor Logic level.
4. method according to claim 2, it is characterized in that: after the master control borad of described refrigerator is connected with described host computer, when refrigerator enters the condition of commodity inspection pattern: meet refrigerating chamber observed temperature >T3, and refrigerating chamber observed temperature >T3 and, evaporimeter observed temperature >T3,0 DEG C <T3<20 DEG C and pin " freezing temperature adjustment key+refrigeration temperature adjustment key " t5,1<t5<10 second, enter commodity inspection pattern.
5. method according to claim 2, is characterized in that: described host computer is wireless with a main frame or finite data is connected, and described main frame is used for carrying out Treatment Analysis to the data of host computer conveying.
6. method according to claim 2, is characterized in that: in described test process, master control borad gives each load supplying regular hour of refrigerator separately.
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| CN201510116974.0A CN104764288A (en) | 2015-03-17 | 2015-03-17 | Refrigerator detection method of dynamic cooling line |
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| CN201510116974.0A CN104764288A (en) | 2015-03-17 | 2015-03-17 | Refrigerator detection method of dynamic cooling line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096548A (en) * | 2015-08-24 | 2015-11-25 | 合肥美的电冰箱有限公司 | Refrigerator commodity inspection system and method based on Zigbee communication mode |
| CN106969595A (en) * | 2017-05-10 | 2017-07-21 | 江苏新安电器有限公司 | A kind of refrigerator loads control and monitoring system |
| CN113915942A (en) * | 2021-05-08 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and WiFi module working state detection method |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105096548A (en) * | 2015-08-24 | 2015-11-25 | 合肥美的电冰箱有限公司 | Refrigerator commodity inspection system and method based on Zigbee communication mode |
| CN106969595A (en) * | 2017-05-10 | 2017-07-21 | 江苏新安电器有限公司 | A kind of refrigerator loads control and monitoring system |
| CN113915942A (en) * | 2021-05-08 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and WiFi module working state detection method |
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| 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 |
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Effective date of registration: 20160407 Address after: Guangdong province Zhongshan City Dongfu road 528427 Nantou Town, No. 54 Applicant after: GUANGDONG HOMA REFRIGERATOR CO., LTD. Address before: 528427 Guangdong Province, Zhongshan city Nantou town or North Road North Industrial Zone No. 54 Fu Hui Applicant before: Guangdong Homa Appliances Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150708 |