CN110134114A - A kind of adaptive automatic testing equipment and method of refrigerator electric control - Google Patents
A kind of adaptive automatic testing equipment and method of refrigerator electric control Download PDFInfo
- Publication number
- CN110134114A CN110134114A CN201910442548.4A CN201910442548A CN110134114A CN 110134114 A CN110134114 A CN 110134114A CN 201910442548 A CN201910442548 A CN 201910442548A CN 110134114 A CN110134114 A CN 110134114A
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- test
- electric control
- circuit
- automatic testing
- refrigerator electric
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2825—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere in household appliances or professional audio/video equipment
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses the adaptive automatic testing equipments and method of a kind of refrigerator electric control, wherein, device part includes test stage body, automatic testing circuit plate, refrigerator electric control plate and liquid crystal display to be measured, pressing device is equipped on the test stage body, PCBA fixture, A.C. voltmeter, ac power meter, D.C. voltmeter, test interface patchcord, test load, liquid crystal display, operation button and automatic testing circuit plate, automatic testing circuit plate is separately connected refrigerator electric control plate to be measured, operation button and liquid crystal display, refrigerator electric control plate to be measured is separately connected A.C. voltmeter, ac power meter, D.C. voltmeter and test load, the adaptive automatic testing equipment and method of refrigerator electric control of the present invention are provided simultaneously with the advantages of efficient and high reliability, human factor bring in test process can be substantially reduced to judge by accident, this side Method is also equipped with the function of failure data analyzing and arrangement, the failure accounting situation of intuitive display test model.
Description
Technical field
The present invention relates to refrigerator art, the adaptive automatic testing equipment and method of specifically a kind of refrigerator electric control.
Background technique
Refrigerator electric control plate is during PCBA processing, production and transportation, due to environment, artificial or other uncertain factors
It will cause a part of rejected product, next link flowed into order to provide product quality and reduce rejected product, for the property of PCBA
It is essential for capable of detecting.
As the function of refrigerator is increasingly enriched, the PCB design of refrigerator is also more accurate complicated, and existing artificial detection is main
Verify system function by way of accessing load and switching control input signal manually, this mode inefficiency, can not
Lean on and bring the investment of a large amount of human cost and time cost.Design the automatic testing equipment energy of a adaptation refrigerator electric control plate
Enough effective raising testing efficiencies and reliability.
Summary of the invention
The purpose of the present invention is to provide the adaptive automatic testing equipments and method of a kind of refrigerator electric control, described in solving
The problem of being proposed in background technique.
In order to achieve the object, the invention provides the following technical scheme:
A kind of adaptive automatic testing equipment of refrigerator electric control, including test stage body, automatic testing circuit plate, refrigerator electric control to be measured
Plate and liquid crystal display are equipped with pressing device, PCBA fixture, A.C. voltmeter, ac power meter, straight on the test stage body
Ampere-voltage meter, test interface patchcord, test load, liquid crystal display, operation button and automatic testing circuit plate, it is automatic to test
Circuit board is separately connected refrigerator electric control plate, operation button and liquid crystal display to be measured, and refrigerator electric control plate to be measured is separately connected exchange
Voltmeter, ac power meter, D.C. voltmeter and test load.
As further scheme of the invention: the automatic testing circuit plate includes MCU processor, DC voltage detection
Circuit, exchange output detection circuit, switch detection circuit, aerator supervision circuit, defrost detection circuit, air door detection circuit, solely
Vertical Switching Power Supply, outputting circuit for relay, PWM output circuit and telecommunication circuit, MCU processor are separately connected DC voltage detection
Circuit, exchange output detection circuit, switch detection circuit, aerator supervision circuit, defrost detection circuit, air door detection circuit, solely
Vertical Switching Power Supply, outputting circuit for relay, PWM output circuit and telecommunication circuit.
As the present invention further scheme: by test interface patchcord by ac power meter, A.C. voltmeter, straight
Ampere-voltage meter and automatic testing circuit plate access PCBA fixture are simultaneously compressed using pressing device, the A.C. voltmeter, exchange function
Rate table, D.C. voltmeter are fixed on testboard body operation panel.
As further scheme of the invention: the automatic testing circuit plate is fixed on inside testboard body, liquid crystal
Display screen and operation button are installed on testboard body operation panel after being connected to automatic testing circuit plate.
A kind of adaptive automatic test approach of refrigerator electric control comprising the steps of:
A, automatic testing circuit plate obtains the content on refrigerator electric control plate to be measured by communication interaction；
B, the inspection policies of input/output signal are determined according to refrigerator electric control plate feedback signal to be measured again；
C, automatic testing circuit plate changes relay and signal output in response；
D, by judging situation of each functional module under different output states, test result is finally obtained.
As further scheme of the invention: the step A is specifically: automatic testing circuit plate can also obtain refrigerator phase
Model and corresponding fault message are closed, timesharing records test result in batches, counts the failure rate of corresponding model, and obtain failure ratio
And the failure rate of testing time and each is read on liquid crystal display.
As the present invention further scheme: the step C is specifically: if 1) automatic test board receives and starts test and refer to
It enables, issues equipment query instruction；2) refrigerator electric control plate to be tested receives upper hair device model after equipment query instruction；3) automatic to survey
If test plate (panel) receives device model, issue and draw high test mode, otherwise jumps to fault cues and show communication failure；4) refrigerator electric control
Plate, which receives, draws high test instruction, exports and draws high state, draws high movement completion information drawing high in stable condition rear upper hair；5) automatic to survey
Test plate (panel), which receives, draws high work completion information, carries out drawing high status fault screening, pull-down state instruction is issued after screening；6 ice
Case electric-controlled plate, which receives, drags down test instruction, exports pull-down state, upper hair drags down movement and completes information after pull-down state is stablized；
7)) automatic test board, which receives, drags down work completion information, carries out the screening of pull-down state failure, fault detection is entered after screening
If test result is normal, screen display test is normal, if terminating test after faulty display defect content.
A kind of adaptive Auto-Test System output state driving of refrigerator electric control, driving process are as follows:
1) refrigerator electric control plate and automatic test board to be measured enter output state, select corresponding output driving strategy.
2) enter equipment state self-correcting, it is ensured that device drives init state is correct.
3) refreshing a device drives list, and more new device driver state is consistent with corresponding output state strategy.
4) refrigerator electric control plate and automatic test board driving to be measured includes DC voltage detection circuit, exchange output detection electricity
Road, switch detection circuit, aerator supervision circuit, defrost detection circuit, air door detection circuit, outputting circuit for relay, PWM output
Circuit.
A kind of adaptive automatic testing equipment operating process of refrigerator electric control, operating process are as follows:
1) auto testing instrument is powered on first and carries out automatic Verification.
2) refrigerator electric control plate to be measured is put into PCBA fixture after automatic Verification, and compress pressing device to make refrigerator electric control
Plate tested point and automatic test board test lead electrical communication are abundant.
3) refrigerator electric control plate power switch to be measured is opened, automatically into test program after powering on, automatic test is waited to terminate.
4) after disconnect refrigerator control panel power supply to be measured after the completion of testing automatically, pressing device is unclamped by refrigerator control panel to be measured
It is taken out from PCBA fixture, terminates this test.
Compared with prior art, the beneficial effects of the present invention are: the adaptive automatic testing equipment of refrigerator electric control of the present invention
And method is provided simultaneously with the advantages of efficient and high reliability, can substantially reduce human factor bring in test process and judge by accident,
The method is also equipped with the function of failure data analyzing and arrangement, the failure accounting situation of intuitive display test model.
Detailed description of the invention
Fig. 1 Auto-Test System function structure chart of the present invention；
Fig. 2 automatic testing equipment communication interaction flow chart of the present invention；
Fig. 3 Auto-Test System output state of the present invention drives schematic diagram；
Fig. 4 automatic testing equipment operational flowchart of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: please referring to Fig. 1-4, a kind of adaptive automatic testing equipment of refrigerator electric control, including test stage body, from
It is dynamic to test circuit board, refrigerator electric control plate to be measured and liquid crystal display, pressing device, PCBA folder are equipped on the test stage body
Tool, A.C. voltmeter, ac power meter, D.C. voltmeter, test interface patchcord, test load, liquid crystal display, operation are pressed
Key and automatic testing circuit plate, firstly, passing through test interface patchcord for ac power meter, A.C. voltmeter, D.C. voltmeter
PCBA fixture is accessed with automatic testing circuit plate and is compressed using pressing device, the A.C. voltmeter, ac power meter, direct current
Voltmeter is fixed on testboard body operation panel.Automatic testing circuit plate is fixed on inside testboard body, liquid crystal display and
Operation button is installed on testboard body operation panel after being connected to automatic testing circuit plate.
Automatic testing circuit plate is separately connected refrigerator electric control plate, operation button and liquid crystal display to be measured, refrigerator electricity to be measured
Control plate is separately connected A.C. voltmeter, ac power meter, D.C. voltmeter and test load.Wherein, automatic testing circuit plate packet
Include MCU processor, DC voltage detection circuit, exchange output detection circuit, switch detection circuit, aerator supervision circuit, defrost
Detection circuit, air door detection circuit, independent switch power supply, outputting circuit for relay, PWM output circuit and telecommunication circuit, at MCU
Reason device is separately connected DC voltage detection circuit, exchange output detection circuit, switch detection circuit, aerator supervision circuit, defrost
Detection circuit, air door detection circuit, independent switch power supply, outputting circuit for relay, PWM output circuit and telecommunication circuit.
A kind of adaptive automatic test approach of refrigerator electric control comprising the steps of:
A, automatic testing circuit plate obtains the content on refrigerator electric control plate to be measured by communication interaction；Automatic testing circuit plate can also
Refrigerator related model and corresponding fault message are obtained, timesharing records test result in batches, the failure rate of corresponding model is counted, and
It obtains failure ratio and reads the failure rate of testing time and each on liquid crystal display；
B, the inspection policies of input/output signal are determined according to refrigerator electric control plate feedback signal to be measured again；
C, automatic testing circuit plate changes relay and signal output in response；
D, by judging situation of each functional module under different output states, test result is finally obtained.
Embodiment 2: being in place of the difference of embodiment 1, as shown in Fig. 2, automatic testing equipment communication interaction, communication
Process is as follows.
Draw high state refrigerator electric control plate peripheral hardware driving power-up state to be measured corresponding with pull-down state and driving power failure state.
1) if automatic test board, which receives, starts test instruction, equipment query instruction is issued.
2) refrigerator electric control plate to be tested receives upper hair device model after equipment query instruction.
If 3) automatic test board receives device model, issue and draw high test mode, otherwise jumps to fault cues and show and lead to
Believe failure.
4) refrigerator electric control plate, which receives, draws high test instruction, and state is drawn high in output, draw high it is in stable condition after upper hair draw high it is dynamic
Make completion information.
5) automatic test board, which receives, draws high work completion information, carries out drawing high status fault screening, issue after screening
Pull-down state instruction.
6) refrigerator electric control plate, which receives, drags down test instruction, exports pull-down state, upper hair drags down dynamic after pull-down state is stablized
Make completion information.
7) automatic test board, which receives, drags down work completion information, carries out the screening of pull-down state failure, enters after screening
If fault detection test result is normal, screen display test is normal, if terminating test after faulty display defect content.
As shown in figure 3, driving schematic diagram for Auto-Test System output state, driving process is as follows:
1) refrigerator electric control plate and automatic test board to be measured enter output state, select corresponding output driving strategy.
2) enter equipment state self-correcting, it is ensured that device drives init state is correct.
3) refreshing a device drives list, and more new device driver state is consistent with corresponding output state strategy.
4) refrigerator electric control plate and automatic test board driving to be measured includes DC voltage detection circuit, exchange output detection electricity
Road, switch detection circuit, aerator supervision circuit, defrost detection circuit, air door detection circuit, outputting circuit for relay, PWM output
Circuit.
As shown in figure 4, being automatic testing equipment operational flowchart, operating process is as follows:
1) auto testing instrument is powered on first and carries out automatic Verification.
2) refrigerator electric control plate to be measured is put into PCBA fixture after automatic Verification, and compress pressing device to make refrigerator electric control
Plate tested point and automatic test board test lead electrical communication are abundant.
3) refrigerator electric control plate power switch to be measured is opened, automatically into test program after powering on, automatic test is waited to terminate.
4) after disconnect refrigerator control panel power supply to be measured after the completion of testing automatically, pressing device is unclamped by refrigerator control panel to be measured
It is taken out from PCBA fixture, terminates this test.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of adaptive automatic testing equipment of refrigerator electric control, including test stage body, automatic testing circuit plate, refrigerator to be measured electricity
Control plate and liquid crystal display, which is characterized in that be equipped on the test stage body pressing device, PCBA fixture, A.C. voltmeter,
Ac power meter, D.C. voltmeter, test interface patchcord, test load, liquid crystal display, operation button and automatic test electricity
Road plate, automatic testing circuit plate are separately connected refrigerator electric control plate, operation button and liquid crystal display to be measured, refrigerator electric control plate to be measured
It is separately connected A.C. voltmeter, ac power meter, D.C. voltmeter and test load.
2. a kind of adaptive automatic testing equipment of refrigerator electric control according to claim 1, which is characterized in that described automatic
Test circuit board includes MCU processor, DC voltage detection circuit, exchange output detection circuit, switch detection circuit, blower inspection
Slowdown monitoring circuit, defrost detection circuit, air door detection circuit, independent switch power supply, outputting circuit for relay, PWM output circuit and logical
Believe circuit, MCU processor is separately connected DC voltage detection circuit, exchange output detection circuit, switch detection circuit, blower inspection
Slowdown monitoring circuit, defrost detection circuit, air door detection circuit, independent switch power supply, outputting circuit for relay, PWM output circuit and logical
Believe circuit.
3. a kind of adaptive automatic testing equipment of refrigerator electric control according to claim 2, which is characterized in that pass through test
Ac power meter, A.C. voltmeter, D.C. voltmeter and automatic testing circuit plate are accessed PCBA fixture and made by interface line
It is compressed with pressing device, the A.C. voltmeter, ac power meter, D.C. voltmeter are fixed on testboard body operation panel.
4. a kind of adaptive automatic testing equipment of refrigerator electric control according to claim 3, which is characterized in that described automatic
Test circuit board is fixed on inside testboard body, and liquid crystal display and operation button are installed to after being connected to automatic testing circuit plate
On testboard body operation panel.
5. a kind of adaptive automatic test approach of refrigerator electric control, which is characterized in that comprise the steps of:
Automatic testing circuit plate obtains ice to be measured by communication interaction
The inspection policies of signal out；
Automatic testing circuit plate changes relay and signal output in response；
By judging situation of each functional module under different output states,
Content on case electric-controlled plate；
It determines that input is defeated according to refrigerator electric control plate feedback signal to be measured again and finally obtains test result.
6. a kind of adaptive automatic test approach of refrigerator electric control according to claim 5, which is characterized in that the step
A is specifically: automatic testing circuit plate can also obtain refrigerator related model and corresponding fault message, and timesharing records test knot in batches
Fruit, counts the failure rate of corresponding model, and obtains failure ratio and read the failure of testing time and each on liquid crystal display
Rate.
7. a kind of adaptive automatic test approach of refrigerator electric control according to claim 5, which is characterized in that the step
C is specifically: if 1) automatic test board receive start test instruction, issue equipment query instruction；2) refrigerator electric control plate to be tested is received
It is upper after to equipment query instruction to send out device model；If 3) automatic test board receives device model, issues and draw high test mode, otherwise
It jumps to fault cues and shows communication failure；4) refrigerator electric control plate, which receives, draws high test instruction, and output draws high state, drawing high shape
State is above sent out after stablizing draws high movement completion information；5) automatic test board, which receives, draws high work completion information, carries out drawing high state event
Hinder screening, pull-down state instruction is issued after screening；6 refrigerator electric control plates, which receive, drags down test instruction, exports pull-down state,
Pull-down state is above sent out after stablizing drags down movement completion information；7)) automatic test board, which receives, drags down work completion information, is dragged down
Status fault screening, if entering after screening, fault detection test result is normal, and screen display test is normal, if faulty aobvious
Terminate test after showing defect content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442548.4A CN110134114B (en) | 2019-05-25 | 2019-05-25 | Self-adaptive automatic testing device and method for refrigerator electric control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442548.4A CN110134114B (en) | 2019-05-25 | 2019-05-25 | Self-adaptive automatic testing device and method for refrigerator electric control |
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| Publication Number | Publication Date |
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| CN110134114A true CN110134114A (en) | 2019-08-16 |
| CN110134114B CN110134114B (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910442548.4A Active CN110134114B (en) | 2019-05-25 | 2019-05-25 | Self-adaptive automatic testing device and method for refrigerator electric control |
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| CN205826035U (en) * | 2016-07-25 | 2016-12-21 | 安徽中家智康科技有限公司 | A kind of test device of refrigerator variable-frequency compressor driving plate |
| CN205920397U (en) * | 2016-06-29 | 2017-02-01 | 广东英得尔实业发展有限公司 | Test fixture of on -vehicle refrigerator control panel |
| CN106774238A (en) * | 2016-11-14 | 2017-05-31 | 四川长虹电器股份有限公司 | It is applied to the detection method of refrigerator electric control plate hardware system |
| CN109100636A (en) * | 2018-07-11 | 2018-12-28 | 青岛北洋天青数联智能股份有限公司 | Circuit board detection method, device, system and test host computer |
-
2019
- 2019-05-25 CN CN201910442548.4A patent/CN110134114B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60202655T2 (en) * | 2001-11-08 | 2005-06-09 | Schneider Automation | System for downloading and remote maintenance of an electronic card |
| WO2014103134A1 (en) * | 2012-12-28 | 2014-07-03 | International Business Machines Corporation | Predicting a time of failure of a device |
| CN205920397U (en) * | 2016-06-29 | 2017-02-01 | 广东英得尔实业发展有限公司 | Test fixture of on -vehicle refrigerator control panel |
| CN205826035U (en) * | 2016-07-25 | 2016-12-21 | 安徽中家智康科技有限公司 | A kind of test device of refrigerator variable-frequency compressor driving plate |
| CN106774238A (en) * | 2016-11-14 | 2017-05-31 | 四川长虹电器股份有限公司 | It is applied to the detection method of refrigerator electric control plate hardware system |
| CN109100636A (en) * | 2018-07-11 | 2018-12-28 | 青岛北洋天青数联智能股份有限公司 | Circuit board detection method, device, system and test host computer |
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| CN110134114B (en) | 2021-04-27 |
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