CN112798898B - Full-automatic detection method for microwave oven timer - Google Patents
Full-automatic detection method for microwave oven timer Download PDFInfo
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- CN112798898B CN112798898B CN202110329697.7A CN202110329697A CN112798898B CN 112798898 B CN112798898 B CN 112798898B CN 202110329697 A CN202110329697 A CN 202110329697A CN 112798898 B CN112798898 B CN 112798898B
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- 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
Abstract
The invention provides a full-automatic detection method of a microwave oven timer, which is provided with detection equipment, wherein the detection equipment comprises a plurality of timer detection sub-modules, a timer detection sub-module and a detection sub-module, wherein the timer detection sub-modules are used for fixing the microwave oven timer, are electrically connected with the microwave oven timer and output detection signals; the control electric cabinet is used for providing a power supply for the timer detection submodule, receiving a detection signal output by the timer detection submodule, timing the on-off time of the detection signal and detecting the power distribution function and the timing function of the microwave oven timer; and a display screen; the display screen is connected with the control electric cabinet; each timer detection submodule comprises a base used for fixing a timer of the microwave oven; the base is arranged on the control electric cabinet, and a detection circuit electrically connected with a microwave oven timer is arranged in the base; the detection circuit is connected with the control electric cabinet and is formed by connecting a power supply module and a detection board. The invention can realize rapid and accurate batch detection of the microwave oven at regular time, thereby improving the detection efficiency and the detection accuracy.
Description
Technical Field
The invention relates to the technical field of timer detection, in particular to a full-automatic detection method for a timer of a microwave oven.
Background
The microwave oven timer is composed of 75 key precise components including a gear train set, a cam lever set, a conductive contact piece set and the like, so that the precision, consistency and assembly process requirements of parts are very high for the microwave oven timer, and one part manufacturing deviation or assembly deviation causes the malfunction of timing time and power distribution. The inspection of the microwave oven timer belongs to a mandatory inspection item in the national household appliance standard, so that all the produced timers need to be subjected to full-function inspection in the production process, abnormal timers need to be screened, and the full-function inspection of the microwave oven timer is carried out.
The detection of the existing microwave oven timer adopts a detection mode of manual visual observation, and is assisted with a stopwatch to correct the working functional states of the timer, and the timer which finds out the malfunction selects the timer. However, when the timers are produced in a large scale, 50 or 100 timers need to be detected simultaneously, and the problem of manual missing detection inevitably occurs, so that the timers with malfunction flow into the market, the microwave oven is failed to be used by users, and the full-detection and accurate-detection effects cannot be achieved.
Therefore, it is urgently needed to research a full-automatic detection mechanism to replace a manual detection mode, so as to avoid the situations of missing detection and false detection.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provides a full-automatic detection method for a microwave oven timer, which can realize rapid and accurate batch detection of microwave ovens at regular time and effectively avoid the conditions of missed detection and false detection, thereby improving the detection efficiency and the detection accuracy. The invention also provides a quick, accurate and reliable full-automatic detection method for the microwave oven timer, thereby effectively ensuring the quality of the microwave oven timer.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a full automated inspection equipment of microwave oven timer which characterized in that: the method comprises the following steps:
the timer detection submodules are used for fixing the microwave oven timer, are electrically connected with the microwave oven timer and output detection signals;
the control electric cabinet is used for providing a power supply for the timer detection submodule, receiving a detection signal output by the timer detection submodule, timing the on-off time of the detection signal and detecting the power distribution function and the timing function of the microwave oven timer;
the display screen is used for displaying the detection data and the detection state, and detecting the operation; the display screen is connected with the control electric cabinet;
each timer detection submodule comprises a base used for fixing a timer of the microwave oven; the base is arranged on the control electric cabinet, and a detection circuit electrically connected with a microwave oven timer is arranged in the base; the detection circuit is connected with the control electric cabinet and is formed by connecting a power supply module and a detection board;
when the microwave oven timer works, the detection board converts an input signal of the power supply module and an input signal of the microwave oven timer into a detection signal, and the control electric cabinet realizes the detection of the power distribution function and the timing function of the microwave oven timer by receiving the detection signal output by the detection board and timing the on-off time of the detection signal.
In the scheme, the control electric cabinet can realize power supply control, and the running state of a plurality of microwave oven timers is monitored in real time through the display screen. The full-automatic detection equipment for the microwave oven timer can greatly solve the problems that manual detection causes high labor intensity and low detection efficiency, can realize quick and accurate detection on the power distribution function and the timing function of the microwave oven timer, can realize batch detection, and effectively avoids the conditions of missed detection and false detection, thereby improving the detection efficiency and the detection accuracy.
The microwave oven timer comprises a contact piece A and a contact piece B, wherein the contact piece A and the contact piece B are respectively connected with a static contact and a moving contact of a timing switch K1 in the microwave oven timer and are used as external leading-out contact pieces; the contact piece B is connected with a timing time rotating shaft of a microwave oven timer.
The power supply module is connected with the contact piece A.
The microwave oven timer also comprises a contact piece C and a contact piece D, wherein the contact piece C and the contact piece D are respectively connected with a static contact and a moving contact of a power switch K2 in the microwave oven timer and are used as external leading-out contact pieces; and the contact piece D is connected with a power adjusting rotary shaft of a microwave oven timer.
The contact C is connected with the power supply module; and the contact C is connected with the contact B, and both the contact C and the contact B are connected with the synchronous motor.
The input end of the detection board is respectively connected with the power module and the contact piece D, and the output end of the detection board is connected with the control electric cabinet.
The detection board comprises a rectification voltage-stabilizing module and a photoelectric coupler, and an input signal sequentially passes through the rectification voltage-stabilizing module and the photoelectric coupler and is converted into a detection signal. The invention converts AC220V into low voltage to drive the photoelectric coupler, and converts the low voltage to obtain a detection signal.
A full-automatic detection method for a microwave oven timer is characterized by comprising the following steps: a plurality of timer detection sub-modules electrically connected with a microwave oven timer are arranged, each timer detection sub-module is provided with a detection circuit electrically connected with the microwave oven timer, and each detection circuit is formed by connecting a power supply module and a detection board;
the detection board converts the input signal of the power supply module and the input signal of the microwave oven timer into a detection signal, and the detection of the power distribution function and the timing function of the microwave oven timer is realized by receiving the detection signal output by the detection board and timing the on-off time of the detection signal.
The detection method comprises the following steps:
firstly, connecting the input end of a power supply module of each timer detection submodule with a contact A of a microwave oven timer, a contact C of the microwave oven timer and a detection board respectively; wherein, the contact A is connected with the static contact of the timing switch K1; the contact C is connected with a static contact of the power switch K2 and is connected with a synchronous motor of a microwave oven timer;
connecting a contact piece B of a microwave oven timer with a moving contact of a timing switch K1, and connecting a contact piece D of the microwave oven timer with a moving contact of a power switch K2; connecting the contact piece B with the contact piece C and connecting with a synchronous motor of a microwave oven timer; the input end of the detection board is respectively connected with the power supply module and the contact piece D, and the output end of the detection board is connected with the control electric cabinet;
secondly, detecting the power distribution function of the microwave oven timer:
respectively setting on-off time T according to rated microwave output power0Wherein T is0= t1+ t2, operating time in one cycle period is t1, stop time is t 2;
rotating a timing time rotary shaft of a timer of the microwave oven to set timing time, closing a moving contact and a static contact of a timing switch K1, enabling a synchronous motor to be electrified through a contact piece B, and after the synchronous motor runs, starting timing by a driving gear train and a cam mechanism in the timer;
according to the rated microwave output power, a rotating shaft is adjusted by rotating the power of a microwave oven timer, a moving contact and a static contact of a power switch K2 are closed, and at the moment, a contact D has signal output; the detection board carries out rectification and voltage stabilization on the input signal of the power supply module and the input signal of the contact plate D and then drives the photoelectric coupler to convert the input signals to obtain a detection signal with the same power as the input signal;
timing the on-off time of the detection signal, and when the on-off time T detected in real time exceeds the set on-off time T0If so, detecting that the power distribution function of the microwave oven timer is unqualified, controlling the synchronous motor to be powered off, and keeping the corresponding state of the timer for analyzing corresponding problems; otherwise, judging that the power distribution function of the microwave oven timer is qualified, and carrying out a third step;
thirdly, detecting the timing function of the microwave oven timer:
setting a threshold value of the on-time;
turning the power switch K2 to maximum, rotating the timing time rotary shaft of the microwave oven timer to switch on the timing switch K1, receiving the detection signal of the detection board, and timing the switch-on time of the detection signal: when the on-time exceeds the threshold value of the set on-time, detecting that the timing function of the microwave oven timer is unqualified, controlling the synchronous motor to be powered off, and keeping the corresponding state of the timer for analyzing the corresponding problems; otherwise, judging that the timing function of the microwave oven timer is qualified.
The working principle of the detection mechanism of the microwave oven timer is as follows:
the microwave oven timer is used for controlling the generation of the microwave of the magnetron and mainly realizes two functions; firstly, the timing of a main switch is controlled; and secondly, controlling power distribution or on-off time distribution. The microwave oven timer takes the constant-speed rotation of a micro synchronous motor as power and a time reference, and realizes the functions of two parts through gear train transmission and a cam deflector rod mechanism, wherein the functions of the two parts are related to each other; a part of the micro synchronous motor controls a microwave generation main power switch of a magnetron and is also used as a timing switch, a timing knob is operated to set timing time, a timing switch K1 in a timer is switched on, the microwave generation of the magnetron is electrified to start working, meanwhile, a micro synchronous motor rotates to drive a gear train and a cam mechanism to run, when the set time is up, a main timing switch K1 is switched off, the magnetron stops working, and the timing time is divided into 15min, 30min, 35min, 60min and the like.
The other part is power distribution for controlling microwave generation of a magnetron, the power distribution is linked with a timing function, the power distribution is actually a time distribution switch, also called a power regulator or fire power distribution, the period is set to be T =30S, the cam is driven to rotate and the deflector rod is driven to move through a gear reduction transmission system to control on-off, the power supply of the magnetron is periodically switched on and off, the microwave generation is enabled to regularly and intermittently work, the working time and the stopping time have a linear proportional relation, the proportion is changed, the working time in one cycle is T1, the stopping time is T2, the cycle period is T = T1+ T2, the purpose of power regulation is achieved, and the power regulator is provided with five-gear power for selection when a user uses the power regulator; this structure provides accurate time for timing selection of a short time.
When the power distribution function is detected, the controller receives the detection signal of the detection board in real time and counts the on-off time of the detection signal, namely T = T1+ T2. When the on-off time T does not meet the set time, for example: and if the microwave oven timer is in the states of long on, long off, overtime on time, overtime off time and the like, detecting that the power distribution function of the microwave oven timer is unqualified, and simultaneously controlling the synchronous motor to be powered off to keep the corresponding state of the timer, thereby facilitating the analysis of corresponding problems.
When the timing function is detected, the power switch K2 is adjusted to be maximum, the timing switch K1 is switched on, and the controller receives the detection signal of the detection board in real time and counts the on-time of the detection signal. When the on-time does not correspond to the set timing time, for example: if the problems of flash break, early return to zero, delayed return to zero and the like exist, the timing function of the microwave oven timer is detected to be unqualified, and meanwhile, the synchronous motor is controlled to be powered off, so that the corresponding state of the timer is kept, and the corresponding problem analysis is facilitated.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the full-automatic detection equipment for the microwave oven timer can realize rapid and accurate batch detection of the microwave oven at regular time, and effectively avoids the conditions of missed detection and false detection, thereby improving the detection efficiency and the detection accuracy.
2. The full-automatic detection method for the microwave oven timer can realize quick, accurate and reliable detection, thereby effectively ensuring the quality of the microwave oven timer.
Drawings
FIG. 1 is a schematic view of a full automatic detection device for a timer of a microwave oven according to the present invention;
FIG. 2 is a schematic diagram of a microwave oven timer fixed in a timer detection sub-module;
FIG. 3 is a circuit diagram of the detection circuit of the present invention connected to a timer of a microwave oven;
FIG. 4 is a schematic view of a detection plate;
FIG. 5 is a connection block diagram of the full automatic detection device of the timer of the microwave oven according to the present invention;
FIG. 6 is a schematic diagram of a timer structure of a microwave oven;
wherein, 1 is the microwave oven timer, 2 is the base, 3 is the pick-up plate, 4 is power module, 5 is contact A, 6 is contact B, 7 is time switch K1, 8 is the timing time axis of revolution, 9 is contact C, 10 is contact D, 11 is power switch K2, 12 is the power regulation axis of revolution, 13 is synchronous machine, 14 is the switch board, 15 is the touch-sensitive screen, 16 is the timer detection submodule piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 1 to 6, the full automatic detection device for the timer of the microwave oven of the present invention comprises:
the timer detection submodules 16 are used for fixing the microwave oven timer 1, are electrically connected with the microwave oven timer 1 and output detection signals;
the control electric cabinet 14 is used for providing a power supply for the timer detection submodule 16, receiving a detection signal output by the timer detection submodule 16, timing the on-off time of the detection signal and detecting the power distribution function and the timing function of the microwave oven timer 1;
the display is provided with a touch screen 15 and is used for displaying detection data and detection states and detecting operation and control, and the touch screen 15 is connected with the control electric cabinet 14;
wherein, the controller among the electric cabinet 14 of control adopts the PLC controller, and every timer detects submodule piece 16 including the base 2 that is used for fixed microwave oven timer 1, and this base 2 sets up on electric cabinet 14 of control to inside is provided with the detection circuitry with microwave oven timer 1 electrical connection, and this detection circuitry is connected with electric cabinet 14 of control, and is connected by power module 4 and pick-up plate 3 and constitutes, and this power module 4 adopts the power supply relay module.
Specifically, the microwave oven timer 1 comprises a contact piece A5 and a contact piece B6, the contact piece A5 and the contact piece B6 are respectively connected with a static contact and a moving contact of a timing switch K17 in the microwave oven timer 1 and serve as external leading-out contact pieces, the contact piece B6 is connected with a timing time rotating shaft 8 of the microwave oven timer 1, and the power supply module 4 is connected with the contact piece A.
The microwave oven timer 1 further comprises a contact piece C9 and a contact piece D10, the contact piece C9 and the contact piece D10 are respectively connected with a static contact and a moving contact of a power switch K211 in the microwave oven timer 1 and serve as external leading-out contact pieces, and the contact piece D10 is connected with a power adjusting rotary shaft 12 of the microwave oven timer 1. And contact C9 is connected with power module, and contact C9 is connected with contact B6, and contact C9 is connected with synchronous machine 13's power supply N end, and contact B6 is connected with synchronous machine 13's power supply L end.
The input end of the detection board 3 is respectively connected with the power module 4 and the contact piece D10, and the output end of the detection board is connected with the PLC. This detection plate 3 includes rectification voltage stabilizing module and optoelectronic coupler, and input signal loops through rectification voltage stabilizing module and optoelectronic coupler, converts the detected signal into. The invention converts AC220V into low voltage to drive the photoelectric coupler, and converts the low voltage to obtain a detection signal.
The full-automatic detection method of the microwave oven timer comprises the following steps: a plurality of timer detection submodules 16 electrically connected with the microwave oven timer 1 are arranged, each timer detection submodule 16 is provided with a detection circuit electrically connected with the microwave oven timer 1, and each detection circuit is formed by connecting a power supply module 4 and a detection board 3;
the detection board 3 converts an input signal of the power supply module 4 and an input signal of the microwave oven timer 1 into a detection signal, and the detection of the power distribution function and the timing function of the microwave oven timer 1 is realized by receiving the detection signal output by the detection board 3 and timing the on-off time of the detection signal.
The method specifically comprises the following steps:
firstly, connecting input terminals TL1 and TN1 of a power supply module 4 of each timer detection submodule 16 with a contact A5 of a microwave oven timer 1, a contact C9 of the microwave oven timer 1 and a detection board 3 respectively; wherein, the contact A5 is connected with the static contact of the timing switch K17; the contact C9 is connected with a static contact of the power switch K211 and is connected with a synchronous motor 13 of the microwave oven timer 1;
connecting a contact B6 of the microwave oven timer 1 with a movable contact of a timing switch K17, and connecting a contact D10 of the microwave oven timer 1 with a movable contact of a power switch K211; connecting the contact piece B6 with the contact piece C9 and connecting with a synchronous motor 13 of the microwave oven timer 1; the input end of the detection board 3 is respectively connected with the power module 4 and the contact piece D10, and the output end of the detection board is connected with a PLC (programmable logic controller) for controlling the electric cabinet;
secondly, detecting the power distribution function of the microwave oven timer 1:
respectively setting on-off time T according to rated microwave output power0Wherein T is0= t1+ t2, operating time in one cycle period is t1, stop time is t 2;
when the timing time rotating shaft 8 of the microwave oven timer 1 is rotated to set the timing time, the moving contact and the static contact of the timing switch K17 are closed, the synchronous motor 13 is powered through the contact B6, and after the synchronous motor 13 runs, the driving gear train and the cam mechanism in the timer start to time;
rotating the power adjusting rotary shaft 12 of the microwave oven timer 1 according to the rated microwave output power, closing a moving contact and a static contact of a power switch K211, and outputting a signal by a contact D10; the detection board 3 carries out rectification and voltage stabilization on the input signal of the power supply module 4 and the input signal of the contact piece D10 and then drives the photoelectric coupler to obtain a detection signal with the same power as the detection signal;
timing the on-off time of the detection signal, and when the on-off time T detected in real time exceeds the set on-off time T0If so, detecting that the power distribution function of the microwave oven timer 1 is unqualified, controlling the synchronous motor 13 to be powered off, and keeping the corresponding state of the timer for analyzing corresponding problems; otherwise, judging that the power distribution function of the microwave oven timer 1 is qualified, and carrying out a third step;
thirdly, detecting the timing function of the microwave oven timer 1:
setting a threshold value of the on-time;
turning the timing rotary shaft 8 of the microwave oven timer 1 to turn on the timing switch K17 with the power switch K211 turned to the maximum, receiving the detection signal of the detection board 3, and counting the on time of the detection signal: when the on-time exceeds the threshold value of the set on-time, the timing function of the microwave oven timer 1 is detected to be unqualified, and meanwhile, the synchronous motor 13 is controlled to be powered off, and the corresponding state of the timer is kept for analyzing the corresponding problems; otherwise, the timing function of the microwave oven timer 1 is judged to be qualified.
In this embodiment, when the timing function of the microwave oven timer is detected, the timing time limit may be 15min, 30min, 35min or 60 min. When the power distribution function of the microwave oven timer is detected, the period can be set to 30S, and the on-off time T is set0The threshold value of (2) can be about 30S, the power distribution is provided with five-gear power for selection when the power is used by a user, the working time t1 is respectively 5S, 9.8S, 16.5S, 23.2S and 30S, and the corresponding off time t2 is respectively 25S, 20.2S, 13.5S, 6.8S and 0; the working time of 5s corresponds to 20% of rated microwave output power and is defined as a temperature fire gear; 9.8s corresponds to 40% of rated microwave output power and is defined as a low-fire gear; 16.5s corresponds to 50% of rated microwave output power and is defined as a middle fire gear; 23.2s corresponds to 80% of rated microwave output power and is defined as middle and high fire gear; 30s corresponds to 100% of the rated microwave output power and is defined as a high fire gear.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. A full-automatic detection method for a microwave oven timer is characterized by comprising the following steps: setting full-automatic detection equipment for a microwave oven timer, wherein the full-automatic detection method for the microwave oven timer is realized by the full-automatic detection equipment for the microwave oven timer;
the full automatic check out test set of microwave oven timer includes:
the timer detection submodules are used for fixing the microwave oven timer, are electrically connected with the microwave oven timer and output detection signals;
the control electric cabinet is used for providing a power supply for the timer detection submodule, receiving a detection signal output by the timer detection submodule, timing the on-off time of the detection signal and detecting the power distribution function and the timing function of the microwave oven timer;
the display screen is used for displaying the detection data and the detection state, and detecting the operation; the display screen is connected with the control electric cabinet;
each timer detection submodule comprises a base used for fixing a timer of the microwave oven; the base is arranged on the control electric cabinet, and a detection circuit electrically connected with a microwave oven timer is arranged in the base; the detection circuit is connected with the control electric cabinet and is formed by connecting a power supply module and a detection board;
when the microwave oven timer works, the detection board converts an input signal of the power supply module and an input signal of the microwave oven timer into a detection signal, and the electric cabinet is controlled to detect the power distribution function and the timing function of the microwave oven timer by receiving the detection signal output by the detection board and timing the on-off time of the detection signal;
the full-automatic detection method of the microwave oven timer comprises the following steps:
firstly, connecting the input end of a power supply module of each timer detection submodule with a contact A of a microwave oven timer, a contact C of the microwave oven timer and a detection board respectively; wherein, the contact A is connected with the static contact of the timing switch K1; the contact C is connected with a static contact of the power switch K2 and is connected with a synchronous motor of a microwave oven timer;
connecting a contact piece B of a microwave oven timer with a moving contact of a timing switch K1, and connecting a contact piece D of the microwave oven timer with a moving contact of a power switch K2; connecting the contact piece B with the contact piece C and connecting with a synchronous motor of a microwave oven timer; the input end of the detection board is respectively connected with the power supply module and the contact piece D, and the output end of the detection board is connected with the control electric cabinet;
secondly, detecting the power distribution function of the microwave oven timer:
respectively setting on-off time T according to rated microwave output power0Wherein T is0= t1+ t2, operating time in one cycle period is t1, stop time is t 2;
rotating a timing time rotary shaft of a timer of the microwave oven to set timing time, closing a moving contact and a static contact of a timing switch K1, enabling a synchronous motor to be electrified through a contact piece B, and after the synchronous motor runs, starting timing by a driving gear train and a cam mechanism in the timer;
according to the rated microwave output power, a rotating shaft is adjusted by rotating the power of a microwave oven timer, a moving contact and a static contact of a power switch K2 are closed, and at the moment, a contact D has signal output; the detection board carries out rectification and voltage stabilization on the input signal of the power supply module and the input signal of the contact plate D and then drives the photoelectric coupler to convert the input signals to obtain a detection signal with the same power as the input signal;
the control electric cabinet times the on-off time of the detection signal, and when the on-off time T detected in real time exceeds the set on-off time T0If so, detecting that the power distribution function of the microwave oven timer is unqualified, controlling the synchronous motor to be powered off, and keeping the corresponding state of the timer for analyzing corresponding problems; otherwise, judging that the power distribution function of the microwave oven timer is qualified, and carrying out a third step;
thirdly, detecting the timing function of the microwave oven timer:
setting a threshold value of the on-time;
adjusting the power switch K2 to the maximum, rotating the timing time rotary shaft of the microwave oven timer to switch on the timing switch K1, controlling the electric cabinet to receive the detection signal of the detection board, and timing the on-time of the detection signal: when the on-time exceeds the threshold value of the set on-time, detecting that the timing function of the microwave oven timer is unqualified, controlling the synchronous motor to be powered off, and keeping the corresponding state of the timer for analyzing the corresponding problems; otherwise, judging that the timing function of the microwave oven timer is qualified.
2. The full automatic detection method of the timer of the microwave oven as claimed in claim 1, wherein: the microwave oven timer comprises a contact piece A and a contact piece B, wherein the contact piece A and the contact piece B are respectively connected with a static contact and a moving contact of a timing switch K1 in the microwave oven timer and are used as external leading-out contact pieces; the contact piece B is connected with a timing time rotating shaft of a microwave oven timer.
3. The full automatic detection method of the timer of the microwave oven as claimed in claim 2, wherein: the power supply module is connected with the contact piece A.
4. The full automatic detection method of the timer of the microwave oven as claimed in claim 2, wherein: the microwave oven timer also comprises a contact piece C and a contact piece D, wherein the contact piece C and the contact piece D are respectively connected with a static contact and a moving contact of a power switch K2 in the microwave oven timer and are used as external leading-out contact pieces; and the contact piece D is connected with a power adjusting rotary shaft of a microwave oven timer.
5. The full automatic detection method of microwave oven timer according to claim 4, characterized in that: the contact C is connected with the power supply module; and the contact C is connected with the contact B, and both the contact C and the contact B are connected with the synchronous motor.
6. The full automatic detection method of microwave oven timer according to claim 4, characterized in that: the input end of the detection board is respectively connected with the power module and the contact piece D, and the output end of the detection board is connected with the control electric cabinet.
7. The full automatic detection method of the timer of the microwave oven as claimed in claim 1, wherein: the detection board comprises a rectification voltage-stabilizing module and a photoelectric coupler, and an input signal sequentially passes through the rectification voltage-stabilizing module and the photoelectric coupler and is converted into a detection signal.
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Denomination of invention: Full automatic detection method of microwave oven timer Effective date of registration: 20211229 Granted publication date: 20210709 Pledgee: Agricultural Bank of China Limited Shunde Beijiao sub branch Pledgor: Guangdong Minzhuo Mechanical and Electrical Co.,Ltd. Registration number: Y2021980016968 |
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