CN116339278A - Intelligent kitchen electric circuit control board detection system and evaluation method - Google Patents
Intelligent kitchen electric circuit control board detection system and evaluation method Download PDFInfo
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- CN116339278A CN116339278A CN202310144364.6A CN202310144364A CN116339278A CN 116339278 A CN116339278 A CN 116339278A CN 202310144364 A CN202310144364 A CN 202310144364A CN 116339278 A CN116339278 A CN 116339278A
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- 238000001514 detection method Methods 0.000 title claims abstract description 57
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- 230000008569 process Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 16
- 238000010168 coupling process Methods 0.000 description 16
- 238000005859 coupling reaction Methods 0.000 description 16
- 230000002159 abnormal effect Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 7
- 238000013100 final test Methods 0.000 description 6
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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
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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- G05B2219/24065—Real time diagnostics
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a detection system and an evaluation method for an intelligent kitchen electric circuit control board, wherein the detection system comprises an instrument data acquisition module, a test voltage power supply module for testing, a control module, a circuit board test fixture table, an analog load output table and computer equipment, wherein the instrument data acquisition module comprises a power analyzer, an oscilloscope, a high-definition camera and a noise meter; the test voltage power supply module is used for providing voltage for testing the circuit board; the control module comprises a system total power supply, a test voltage size adjustment, an output power load size adjustment, a power analyzer, an oscilloscope, a switch or a controller of a computer, and an analog circuit for the NTC open circuit, the NTC short circuit and the fixed NTC resistance of the module thermistor; the circuit board test fixture platform is used for placing a tested power panel and an interaction panel, is used for connecting test voltage with the circuit board, and is used for measuring load output terminal voltage, NTC terminal voltage, cooling fan terminal voltage and interaction panel power supply voltage.
Description
Technical Field
The invention relates to a detection system and an evaluation method for a circuit control board for intelligent kitchen electric appliances.
Background
Intelligent kitchen electric products such as intelligent electric rice cooker, intelligent electromagnetic oven, etc. The detection mode of the products is mainly focused on the detection of the whole machine. The industry has little research and development on automatic, digital and intelligent detection methods and detection devices for the quality of circuit control boards of such household appliances. Especially in the third party laboratory quality technical service industry, there is a blank for the development and application of the detection of the circuit control board for the intelligent kitchen electric product.
Disclosure of Invention
Aiming at the defects of the prior art, one of the purposes of the invention is to provide a detection and evaluation system for an intelligent kitchen circuit control board, which is used for comprehensive detection of appearance detection of a circuit board, detection of layout of elements and wires, abnormal circuit functions and the like, realizes automatic and digital detection and improves detection efficiency. The quality detection and evaluation solution for the circuit control board in the field of household appliances is provided for a third-party laboratory.
The second purpose of the invention is to provide a method for detecting and evaluating the circuit control board for the intelligent kitchen electric appliance.
One of the purposes of the invention is as follows:
an intelligent kitchen electric circuit control board detection system is provided with a system control cabinet: the device comprises an instrument data acquisition module, a test voltage power supply module for testing, a control module, a circuit board test fixture table, an analog load output table and computer data centralized processing, analyzing, displaying and printing equipment, wherein the instrument data acquisition module comprises a power analyzer, an oscilloscope, a high-definition camera and a noise meter, and the high-definition camera is used for shooting images of a tested power panel and an interaction panel; the test voltage power supply module is used for providing voltage for testing a tested power panel and an interaction panel; the control module comprises a system total power supply, a test voltage size adjustment, an output power load size adjustment, a power analyzer, an oscilloscope, a switch or a controller of computer equipment, and an analog circuit for simulating the NTC open circuit, the NTC short circuit and the fixed NTC resistance of the thermistor; the circuit board test fixture platform comprises a power supply test module and an assembling and disassembling module, wherein the power supply test module is provided with a test circuit connected with a simulated load of the simulated load output platform and used for connecting test voltage with a tested power panel and an interactive panel and measuring load output terminal voltage, NTC terminal voltage, radiator fan terminal voltage and interactive panel power supply voltage, the tested power panel and the interactive panel are detachably installed on the assembling and disassembling module, and the power supply test module is connected with the assembling and disassembling module through a coupler.
The detection system is designed aiming at the function detection of the circuit board (power panel, interaction board) for typical kitchen electric products such as intelligent electric rice cooker, intelligent electromagnetic oven/range, and the like, thereby realizing semi-automatic detection and reducing human operation errors. The detection system can realize:
1. shooting a photo of a detected product, and detecting the appearance of the product and the layout of the circuit board elements;
2. shooting error reporting code display conditions of circuit board functions of a tested product under various abnormal power-on conditions;
3. and measuring whether the buzzer works normally under each test condition and alarming decibel value by using a noise meter.
4. The working state and the output condition of the circuit board under each test condition are collected through the power analyzer and the oscilloscope.
The detection system of the present invention also has the following preferred design:
the circuit board test fixture platform adopts a layered drawer type structure and comprises a plurality of drawer type power supply test modules which are arranged in a layered manner, wherein one or more than one assembly and disassembly module is arranged on each power supply test module. The power supply test module is provided with a test connector and an interface socket which are customized according to requirements, a power supply, a switch assembly and a power supply input coupling interface are arranged on the test connector and the interface socket, and a load output coupling interface connected with an analog load is arranged on the test connector and the interface socket. And a coupling connection terminal matched with the power input coupling interface and the analog load output coupling interface is arranged on the assembly and disassembly module for coupling connection. The drawer type power supply test module and the assembly and disassembly module are in modularized design, so that a test circuit is conveniently built, and the detection efficiency is improved.
The assembly and disassembly module is provided with a standby thermosensitive probe binding post. When the tested circuit board loses the corresponding thermosensitive probe element, the corresponding thermosensitive probe is inserted and connected on the tested circuit board so as to ensure the integrity of the functional test sample of the circuit board. The spare thermosensitive probe wiring terminal can adopt standard 2-pin and 3-pin patch cord terminals and is provided with thermosensitive elements of electrical specifications of common electric rice cooker and electromagnetic oven/stove products.
The assembly and disassembly module is of a tray structure, and is convenient to mount and disassemble on the power supply test module.
The simulated load output table is arranged on the power supply test module.
The simulated load of the simulated load output table comprises an electromagnetic coil load and a heating disc load.
The second technical scheme adopted by the invention is as follows:
an evaluation method of an intelligent kitchen electric circuit control board detection system comprises the following steps:
a) The product test-execution compiled test flow comprises an electromagnetic oven circuit board test flow and an electric cooker circuit board test flow, and the test process and the result are displayed;
b) Program editing-editing test flow and various parameters including normal working rated voltage, probe position and alarm signal;
c) Report generation-generating a report from test result data according to the selected query conditions;
d) Device management-adding and deleting hardware devices, and configuring instruments in a system;
e) System management-setting authority of each user, checking each login user test log, and setting effective system configuration and test flow;
f) System exit-exit system test software.
The product testing process comprises the following steps:
1) According to the display requirement of the display test software, after the information of the tested product is input, automatically calling the test program of the corresponding product;
2) Starting the high-definition camera and the noise meter to respectively perform automatic shooting and buzzer sound capturing on the tested product;
3) Adjust thermistor NTC mode analogue means, simulate NTC open circuit, NTC short circuit and the fixed unchangeable condition of NTC resistance through analog circuit respectively, whether have the error code that appears through high definition digtal camera capture, gather the buzzer and send out the signal and acquire noise decibel number value through the noise meter, whether be standby power through the analysis of power analyzer, judge the standard: the qualified tested product, namely the circuit board, generates an alarm or error signal when the NTC is open and the NTC is short, and does not generate an alarm or error signal when the NTC resistance is fixed;
4) Selecting the gear of a tested product: starting a circuit board according to the requirement of product test, and adjusting the gear of a tested sample;
5) And (3) data detection: according to the requirement of product test, the probe of the oscilloscope is automatically connected with the output port of the tested product, namely the circuit board, the voltage waveform of the product is detected by the oscilloscope, after the output port data of the circuit board are detected, the probe of the oscilloscope is automatically connected with the fan port of the circuit board, and the voltage waveform of the fan port of the circuit board is detected by the oscilloscope.
The invention has the beneficial effects that:
1. the invention can solve the quality detection problem of the independent circuit control board, including appearance, element and power-on function detection, realize semi-automatic and digital detection, improve detection efficiency and accuracy, and reduce artificial operation error.
2. The test fixture platform tool for the circuit board is convenient to test and operate, adopts a modularized design, and is convenient to install and detach.
3. According to the invention, each test flow and corresponding data are automatically stored through the computer, specific abnormal data values are marked for abnormal results for user identification and analysis, the computer is used for statistically analyzing the final test results of each sample and exporting the final test results in a report form, and the test results can also be printed through the printer.
Drawings
FIG. 1 is a hardware block diagram of a detection system for a control board of a circuit for intelligent kitchen use of the present invention;
FIG. 2 is a schematic diagram of a layered structure of a fixture for testing a circuit board in accordance with the present invention;
FIG. 3 is a block diagram of a circuit board test fixture station tooling of the present invention;
fig. 4 is an exploded view of the circuit board test fixture table tooling of fig. 3 of the present invention.
Detailed Description
The following detailed description of the present invention is presented in conjunction with the drawings and examples to enable one of ordinary skill in the art to better understand and practice the present invention.
As shown in fig. 1 to 4, a system control cabinet is configured: the device comprises an instrument data acquisition module 1, a test voltage power supply module 2 for testing, a control module 3, a circuit board test fixture platform 4, an analog load output platform 5 and computer data centralized processing, analyzing, displaying and printing equipment, wherein the instrument data acquisition module 11 comprises a power analyzer 11, an oscilloscope 12, a high-definition camera 13 and a noise meter 14, and the high-definition camera 13 is used for shooting images of a tested power panel 6 and an interaction panel 7; the test voltage power supply module 2 is used for providing voltages for testing the tested power panel 6 and the interaction panel 7; the control module 3 comprises a system total power supply, a test voltage size adjustment, an output power load size adjustment, a power analyzer 11, an oscilloscope 12, a switch or a controller of computer equipment, and an analog circuit for simulating the NTC open circuit, the NTC short circuit and the fixed NTC resistance of the thermistor; the circuit board test fixture table 4 comprises a power supply test module 41 and an assembling and disassembling module 42, the power supply test module 41 is provided with a test circuit connected with a simulation load 51 of the simulation load output table 5, is used for connecting test voltages of a tested power panel 6 and an interaction panel 7, and is used for measuring load output terminal voltages, NTC terminal voltages, radiator fan terminal voltages and interaction panel power supply voltages, the tested power panel 6 and the interaction panel 7 are detachably mounted on the assembling and disassembling module 42, and the power supply test module 41 is connected with the assembling and disassembling module 42 through a coupler 9.
The detection system is designed aiming at the function detection of a circuit board (a power panel and an interaction board) for typical kitchen electric products such as an intelligent electric cooker, an intelligent electromagnetic oven/range and the like, semi-automatic detection is realized, and human operation errors are reduced. The detection system can realize:
1. shooting a photo of a detected product, and detecting the appearance of the product and the layout of the circuit board elements;
2. shooting error reporting code display conditions of circuit board functions of a tested product under various abnormal power-on conditions;
3. and measuring whether the buzzer works normally under each test condition and alarming decibel value by using a noise meter.
4. The working state and the output condition of the circuit board under each test condition are collected through the power analyzer and the oscilloscope.
As a preferred embodiment
The circuit board test fixture platform 4 adopts a layered drawer type structure, such as a drawer type centralized box structure shown in fig. 2, and comprises a plurality of drawer type power supply test modules 41 which are arranged in a layered manner, wherein one or more assembly and disassembly modules 42 can be arranged on each power supply test module 41, a test connector and an interface socket which are customized according to requirements are configured on each power supply test module 41, a power supply 43, a switch assembly 44 and a power supply input coupling interface are configured on the power supply test module 41, and a load output coupling interface connected with the analog load 51 is configured on the power supply test module. The detachable module 42 is provided with coupling connection terminals matched with the power input coupling interface and the analog load output coupling interface for coupling connection. The drawer type power supply test module 41 and the assembly and disassembly module 42 are in modularized design, so that a test circuit is conveniently built, and the detection efficiency is improved.
The detachable module 42 is provided with a spare thermosensitive probe connection terminal 8. When the tested circuit board loses the corresponding thermosensitive probe element, the corresponding thermosensitive probe is inserted and connected on the tested circuit board so as to ensure the integrity of the functional test sample of the circuit board. The spare heat sensitive probe wiring terminal 8 can adopt standard 2-pin and 3-pin patch cord terminals and is provided with heat sensitive elements of electrical specifications of common electric rice cooker and electromagnetic oven/stove products.
In this embodiment, the assembling and disassembling module 42 is of a tray structure, which is convenient for mounting and disassembling the assembling and disassembling module on the power supply testing module 41, the material proposal adopts a plywood, the assembling and disassembling module 42 of this embodiment adopts a tray with a length of 50CM, a width of 45CM and a height of 5CM, and is provided with a test power input socket terminal, an electric cooker heating output load terminal, an electromagnetic oven coil output load terminal, a power input coupling interface on the power supply testing module 41 and an analog load output coupling interface are connected through the coupler 9, a connecting wire of the coupling connecting terminal can be wound and contracted like a wire reel, and a tiger clamp with an insulating sheath is mounted at a front end terminal of the coupling connecting wire.
In the present embodiment, the dummy load output stage 5 is provided on the power supply test module 41. The dummy load 51 of the dummy load output stage 5 includes a solenoid load and a heat generating disc load.
The detection system software parameters of the present embodiment include test items, test commands, and hardware configuration. A test item is a collection of one or more test commands, the input of which is a set of parameters, called test conditions, and the output of which is called test results; the test result includes the setting ranges of the upper limit and the lower limit, and the result is judged to be qualified within the range, otherwise, the test result is judged to be unqualified. The test items are stored in a test item database. One test command may be a communication control command, including setting parameters, starting, stopping, reading data, etc. of an oscilloscope, an ac variable frequency power supply, a power analyzer, a load, etc. of the instrument. The hardware configuration includes device type, model number, interface parameters.
The evaluation method adopting the intelligent kitchen electric circuit control board detection system comprises the following steps:
a) The product test-execution compiled test flow comprises an electromagnetic oven circuit board test flow and an electric cooker circuit board test flow, and the test process and the result are displayed;
b) Program editing-editing test flow and various parameters including normal working rated voltage, probe position and alarm signal;
c) Report generation-generating a report from test result data according to the selected query conditions;
d) Device management-adding and deleting hardware devices, and configuring instruments in a system;
e) System management-setting authority of each user, checking each login user test log, and setting effective system configuration and test flow;
f) System exit-exit system test software.
The above functional modules may be implemented by computer software programs.
The product testing process comprises the following steps:
1) According to the requirement of display test software display, after inputting the tested product information, automatically calling the test program of the corresponding product, namely, the test program of various tested products is prestored in the detection system of the embodiment to be called in the detection process;
2) Starting a high-definition camera 13 and a noise meter 14 to respectively perform automatic shooting and buzzer sound capturing on the tested products, namely the power panel 6 and the interaction panel 7;
3) The thermistor NTC mode simulator is regulated by the control module 3, and the conditions of NTC open circuit, NTC short circuit and NTC resistance are respectively simulated by the simulation circuit, and the NTC resistance is simulated by using a common resistor such as 100kΩ resistor when the NTC resistance is fixed. Whether error reporting codes exist or not is captured through the high-definition camera 13, a buzzer on a circuit board is collected through the noise meter 14 to send out signals, noise decibel values are obtained, whether standby power is analyzed through the power analyzer 11, and a judgment standard is obtained: the qualified tested product, namely the circuit board, generates an alarm or error signal when the NTC is open and the NTC is short, and does not generate an alarm or error signal when the NTC resistance is fixed;
4) Selecting the gear of a tested product: starting a circuit board according to the requirement of product test, and adjusting the gear of a tested sample;
5) And (3) data detection: according to the requirement of product test, the probe of the oscilloscope 12 is automatically connected with the output port of the tested product, namely the circuit board, so that the oscilloscope 12 detects the voltage waveform of the product, and after the output port data of the circuit board is detected, the probe of the oscilloscope 12 is automatically connected with the fan port of the circuit board, so that the oscilloscope 12 detects the voltage waveform of the fan port of the circuit board.
The operation flow of the detection system software of the embodiment is as follows:
the first step, entering into a 'device management' module to configure the parameters of the tester device to be controlled. This step is typically performed only once and requires re-entry of the module settings unless the hardware configuration of the device is changed.
Secondly, entering a program editing module, and editing the flow and parameters of the test item to be performed, such as: the normal alternating voltage when setting the access load should be 220V/AC.
And thirdly, entering a system management module and issuing the test program which is just edited.
Fourth, entering a product testing module, opening the testing program just edited, and selecting a corresponding testing product, such as: and selecting the circuit board of the electric cooker for testing, and starting the test.
And fifthly, entering a report generation module, and inquiring and counting the test data and generating a report.
After the test of each circuit board is finished: the system automatically stores each test flow and corresponding data, and marks specific abnormal data values for the abnormal results for user identification and analysis. The upper computer software statistically analyzes the final test results of each sample, and can be exported in a report form, and the final test results are printed or stored by the user. The above modules and programs may be programmed via existing computer software techniques and will not be described in detail herein.
Application cases:
the detection system of the case aims at the integrated test equipment designed for detecting the kitchen electric (electric cooker and electromagnetic oven) products by the functions of the circuit board (power panel and interactive board), realizes semi-automatic detection, improves the detection efficiency and accuracy, and reduces the artificial operation errors. The overall technical indexes are as follows:
1) Selecting
Hardware platform:
software platform:
| | Windows | 7/10 |
| Development environment | Industrial automation configuration software |
2) Wire connection preparation before power-on and power-on preliminary detection
a) The interfaces of the power input end, the L and N and the load output end of the circuit board are correctly distinguished, so that wrong connection or reverse connection is avoided;
b) The output end loads L and N of the circuit board of the electric cooker (non-coil heating) are respectively connected with the heating output load terminals L and N of the electric cooker, and the output end loads L and N of the circuit board of the electromagnetic cooker are respectively connected with the output load terminals L and N of the coil of the electromagnetic cooker;
c) Before the assembly and disassembly module 42 is inserted into the power supply test module 41, the safety switch and the test switch of the switch assembly 44 on the power supply test module 41 are kept in an off state, after the assembly and disassembly module is installed in place, the safety switch is firstly closed to check whether the power panel 6 short-circuit abnormal test energy-saving lamp is 'bright', if so, the condition that a short circuit exists between the input L and the input N of the tested power panel 6 is indicated, and the power panel is directly marked as an 'abnormal circuit board' sample; if the electric cooker is not bright, a short-circuit abnormal test switch is closed, the interactive board 7 is manually operated in a starting mode and a gear mode, whether the load heating energy-saving lamp of the simulated electric cooker is bright or not and whether the load heating energy-saving lamp is bright or not is changed in intensity is checked, or the panel of the electromagnetic cooker/stove emits vortex heating 'squeak' sound.
3) System power-on and connection
a) Respectively starting an industrial personal computer (computer), a power analyzer 11 and an oscilloscope 12;
b) The tested sample circuit board (the power panel 6 and the interaction panel 7) is placed on the test insulation table of the assembling and disassembling module 42, the input port of the circuit board is connected with the alternating current variable frequency power supply, the output port of the circuit board is connected with the alternating current output load interface, and the NTC port is connected with the NTC simulation device. Connecting the wiring slots of the test position points with the output port and the fan port of the circuit board respectively;
c) Closing the safety glass window;
d) Starting an alternating-current variable-frequency power supply, adjusting the voltage and frequency of the power supply to the rated voltage and frequency specified by a tested circuit board (the voltage and frequency of common domestic sold products are 220V and 50Hz respectively), and preparing to start testing.
4) Starting the test flow
a) According to the display requirement of the display test software, after inputting the information of the tested product (electric cooker or electromagnetic oven), automatically calling the test program of the corresponding product;
b) Starting a high-definition camera and a noise meter to respectively perform automatic shooting and buzzer sound capturing;
c) And the NTC mode simulation device of the thermistor is regulated to simulate an NTC open circuit, an NTC short circuit and an NTC normal resistance respectively, namely simulate the condition that the NTC resistance is fixed (generally 100kΩ) and capture whether a fault code exists or not and whether a noise meter collects larger decibel values or not through a clear camera, and whether a power analyzer displays standby power or not. The qualified circuit board should generate alarm or error signal when NTC opens and NTC shorts; and no alarm or error signal appears under the condition of simulating the normal resistance value of the NTC. Manually inputting the test result to a display;
d) Selecting a gear of a tested sample: clicking the interactive board according to the display requirement, enabling the simulation finger of the machine to click a button of the interactive board, starting the circuit board, and adjusting the gear of the tested sample;
e) And (3) data detection: according to the display requirement, the probe of the oscilloscope is automatically connected with the output port of the circuit board, so that the oscilloscope detects the voltage waveform. After the output port data is detected, the probe of the oscilloscope is automatically connected with the fan port of the circuit board, so that the voltage waveform of the oscilloscope is detected by the oscilloscope.
After the test of each circuit board is finished: the system automatically stores each test flow and corresponding data, and marks specific abnormal data values for the abnormal results for user identification and analysis. The upper computer software statistically analyzes the final test results of each sample, and can be exported in a report form, and the final test results are printed or stored by the user.
The detection data report template obtained by the detection evaluation method can be seen in the following table:
the above embodiments are merely preferred embodiments of the present invention, but they should not be construed as limiting the invention, and any modifications and improvements made on the basis of the inventive concept should fall within the scope of the invention, which is defined by the claims.
Claims (8)
1. An intelligent kitchen electric circuit control board detection system is characterized in that a system control cabinet is configured: the device comprises an instrument data acquisition module, a test voltage power supply module for testing, a control module, a circuit board test fixture table, an analog load output table and computer data centralized processing, analyzing, displaying and printing equipment, wherein the instrument data acquisition module comprises a power analyzer, an oscilloscope, a high-definition camera and a noise meter, and the high-definition camera is used for shooting images of a tested power panel and an interaction panel; the test voltage power supply module is used for providing voltage for testing a tested power panel and an interaction panel; the control module comprises a system total power supply, a test voltage size adjustment, an output power load size adjustment, a power analyzer, an oscilloscope, a switch or a controller of computer equipment, and an analog circuit for simulating the NTC open circuit, the NTC short circuit and the fixed NTC resistance of the thermistor; the circuit board test fixture platform comprises a power supply test module and an assembling and disassembling module, wherein the power supply test module is provided with a test circuit connected with a simulated load of the simulated load output platform and used for connecting test voltage with a tested power panel and an interactive panel and measuring load output terminal voltage, NTC terminal voltage, radiator fan terminal voltage and interactive panel power supply voltage, the tested power panel and the interactive panel are detachably installed on the assembling and disassembling module, and the power supply test module is connected with the assembling and disassembling module through a coupler.
2. The intelligent kitchen electrical circuit control board detection system according to claim 1, wherein the circuit board test fixture table adopts a layered drawer type structure, and comprises a plurality of drawer type power supply test modules arranged in a layered manner, wherein one or more than one assembly and disassembly modules are arranged on each power supply test module.
3. The intelligent kitchen appliance electrical circuit control board detection system of claim 2, wherein the mounting-dismounting module is provided with a spare heat sensitive probe terminal.
4. A system for detecting a control board of an intelligent kitchen appliance as in claim 3, wherein said detachable module is a tray structure.
5. The intelligent kitchen appliance electrical circuit control board detection system of claim 4, wherein the analog load output station is disposed on the power test module.
6. The intelligent kitchen appliance electrical circuit control board detection system of claim 5, wherein the analog load of the analog load output station comprises a solenoid load and a hot plate load.
7. An evaluation method using the intelligent kitchen electric circuit control board detection system according to any one of claims 1 to 6, characterized by comprising:
a) The product test-execution compiled test flow comprises an electromagnetic oven circuit board test flow and an electric cooker circuit board test flow, and the test process and the result are displayed;
b) Program editing-editing test flow and various parameters including normal working rated voltage, probe position and alarm signal;
c) Report generation-generating a report from test result data according to the selected query conditions;
d) Device management-adding and deleting hardware devices, and configuring instruments in a system;
e) System management-setting authority of each user, checking each login user test log, and setting effective system configuration and test flow;
f) System exit-exit system test software.
8. The method for evaluating a detection system of a control board for a smart kitchen appliance as claimed in claim 7, wherein the product testing process comprises:
1) Inputting the information of the tested product and automatically calling the testing program of the corresponding product;
2) Starting the high-definition camera and the noise meter to respectively perform automatic shooting and buzzer sound capturing on the tested product;
3) Adjust thermistor NTC mode analogue means, simulate NTC open circuit, NTC short circuit and the fixed unchangeable condition of NTC resistance through analog circuit respectively, whether have the error code that appears through high definition digtal camera capture, gather the buzzer and send out the signal and acquire noise decibel number value through the noise meter, whether be standby power through the analysis of power analyzer, judge the standard: the qualified tested product, namely the circuit board, generates an alarm or error signal when the NTC is open and the NTC is short, and does not generate an alarm or error signal when the NTC resistance is fixed;
4) Selecting the gear of a tested product: starting a circuit board according to the requirement of product test, and adjusting the gear of a tested sample;
5) And (3) data detection: according to the requirement of product test, the probe of the oscilloscope is automatically connected with the output port of the tested product, namely the circuit board, the voltage waveform of the product is detected by the oscilloscope, after the output port data of the circuit board are detected, the probe of the oscilloscope is automatically connected with the fan port of the circuit board, and the voltage waveform of the fan port of the circuit board is detected by the oscilloscope.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211481727 | 2022-11-24 | ||
| CN2022114817277 | 2022-11-24 |
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