CN109275218B - Electrical equipment and method for detecting locking of mechanical timer - Google Patents
Electrical equipment and method for detecting locking of mechanical timer Download PDFInfo
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- CN109275218B CN109275218B CN201811274182.6A CN201811274182A CN109275218B CN 109275218 B CN109275218 B CN 109275218B CN 201811274182 A CN201811274182 A CN 201811274182A CN 109275218 B CN109275218 B CN 109275218B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
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- H05B6/68—Circuits for monitoring or control
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Abstract
The invention discloses an electrical equipment and a method for detecting the locking of a mechanical timer, wherein the electrical equipment comprises: a mechanical timer comprising a plurality of gears; the acquisition device is used for acquiring a feedback signal of any gear in the mechanical timer; and the control device is used for judging whether the mechanical timer is stuck according to the feedback signal and controlling the load of the electrical equipment to stop working when the mechanical timer is stuck. The electrical equipment can effectively solve the problem that when the mechanical electrical equipment is stuck by the timer, the whole electrical equipment is on fire caused by continuous work, so that the personal safety or property loss of a user is caused.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to electrical equipment and a method for detecting the jamming of a mechanical timer.
Background
The mechanical microwave oven is a microwave oven which is controlled purely mechanically without a computer board. In the mechanical microwave oven, after the time knob on the timer is used for selecting time and the power knob is used for selecting power, the microwave generator works according to the set time and power,
the timer reject ratio of the mechanical microwave oven is about 17PPM every year, and although the timer reject ratio is not high, the hazard is large. The defects of the timer are mainly the problems of broken wire of a motor winding, friction between scraps and a motor stator after the motor magnetic steel is cracked, foreign matters attached to a gear, broken wire of welding spots of the motor winding and the like. If the microwave oven still works continuously, because of no time limit, the microwave oven works for a long time, the temperature controller is easy to jump, the glass plate cracks and the like, and even the microwave oven is on fire, thereby endangering the personal safety and the property loss of users.
In the related art, a timer aging test monitoring apparatus is proposed, which detects a timer state through a CCD (charge Coupled Device) image sensor. The working principle is that during aging test, a monitoring program system of an industrial personal computer is always in a running state, a timer is firstly inserted into a socket on a test board, an LED lamp above the socket is turned on, a speed regulating motor is started, the speed regulating motor periodically rotates forwards and backwards to drive a CCD image sensor on a sliding block to reciprocate, the CCD image sensor collects images of the test board, an image collecting card in the industrial personal computer converts image signals into digital signals and sends the digital signals to the monitoring program system, the monitoring program system processes the sent signals by applying a digital image processing algorithm, the on (off) state of each LED indicator lamp is judged, namely, the normal (fault) aging result of the timer is obtained, and then the result and the collecting time of the image are stored in a computer database, so that long-time unmanned monitoring of the aging test of the timer can be realized.
However, the CCD image sensor collects the image of the test board to complete the monitoring, which is a production test tool with high cost and is not suitable for mass production.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first objective of the present invention is to provide an electrical apparatus, which collects a feedback signal of any one gear in a mechanical timer, and determines whether the mechanical timer is stuck according to the feedback signal, and when the mechanical timer is stuck, controls a load of the electrical apparatus to which the mechanical timer belongs to stop working, so as to effectively solve the problem that when the mechanical timer is stuck, the electrical apparatus continues to work, and the whole machine is on fire, which causes personal safety or property loss of a user.
The second objective of the present invention is to provide a method for detecting the mechanical timer jamming.
A third object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an electrical apparatus, including: a mechanical timer comprising a plurality of gears; the acquisition device is used for acquiring a feedback signal of any gear in the mechanical timer; and the control device is used for judging whether the mechanical timer is stuck according to the feedback signal and controlling the load of the electrical equipment to stop working when the mechanical timer is stuck.
According to the electrical equipment provided by the embodiment of the invention, the feedback signal of any gear in the mechanical timer is acquired by the acquisition device, the control device judges whether the mechanical timer is stuck according to the feedback signal, and controls the load of the electrical equipment to stop working when the mechanical timer is stuck, so that the problem that the personal safety or property loss of a user is caused by the fact that the whole machine is on fire due to continuous working of the electrical equipment when the mechanical timer is stuck can be effectively solved.
In addition, the electrical equipment provided according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the acquisition device comprises: a magnet mounted on the any one of the gears; and the Hall module is used for generating a feedback signal of any one gear when the Hall module is in a vertical state with the magnet.
According to another embodiment of the invention, the acquisition device comprises: the transmitting module is arranged on any one gear and is used for transmitting optical signals; a sensing module for generating a feedback signal of the arbitrary one of the gears when the optical signal is sensed.
According to a further embodiment of the invention, the acquisition device comprises: the infrared emission module is arranged on any one gear; and the infrared detection module is used for generating a feedback signal of any one gear when detecting the infrared signal transmitted by the infrared transmission module.
According to one embodiment of the present invention, the control device includes: the main control module is used for judging whether the mechanical timer is stuck according to the feedback signal and outputting a stop signal when the mechanical timer is stuck; and the switch module is used for controlling the load of the electrical equipment to stop working according to the stop signal.
According to an embodiment of the present invention, when determining whether the mechanical timer is jammed, the main control module is specifically configured to determine that the mechanical timer is jammed when the feedback signal is not detected after the rotation period of the gear is exceeded.
According to one embodiment of the invention, the switching module includes one of a relay and a thyristor.
In order to achieve the above object, a second embodiment of the present invention provides a method for detecting jamming of a mechanical timer, where the mechanical timer includes a plurality of gears, and the method includes: collecting a feedback signal of any gear in the mechanical timer; judging whether the mechanical timer is locked or not according to the feedback signal; and when the mechanical timer is stuck, controlling the load of the electrical equipment to which the mechanical timer belongs to stop working.
According to the method for detecting the jamming of the mechanical timer, disclosed by the embodiment of the invention, the feedback signal of any gear in the mechanical timer is acquired, whether the mechanical timer is jammed is judged according to the feedback signal, and when the mechanical timer is jammed, the load of the electrical equipment to which the mechanical timer belongs is controlled to stop working, so that the problem that the personal safety or property loss of a user is caused because the whole machine is on fire due to continuous working of the electrical equipment when the mechanical timer is jammed can be effectively solved.
In addition, the method for detecting the stuck mechanical timer proposed by the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, determining whether the mechanical timer is jammed according to the feedback signal includes: and if the feedback signal is not detected after the rotation period of the gear is exceeded, judging that the mechanical timer is blocked.
To achieve the above object, a non-transitory computer-readable storage medium is provided according to a third embodiment of the present invention, and a computer program is stored thereon, and when being executed by a processor, the computer program implements the above method for detecting the mechanical timer jamming.
By executing the method for detecting the jamming of the mechanical timer, the non-transitory computer-readable storage medium provided by the embodiment of the invention can effectively solve the problem that when the mechanical timer of the electrical equipment is jammed, the whole machine is on fire caused by continuous work, so that the personal safety or property loss of a user is caused.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a block schematic diagram of an electrical apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a mechanical timer according to one embodiment of the present invention;
FIG. 3 is a block schematic diagram of an appliance in accordance with one embodiment of the invention;
FIG. 4 is a schematic diagram of an acquisition module according to one embodiment of the present invention;
FIG. 5 is a block schematic diagram of an electrical device according to another embodiment of the present invention;
FIG. 6 is a block schematic diagram of an electrical device according to yet another embodiment of the present invention;
FIG. 7 is a flow chart of a method of detecting mechanical timer jamming in accordance with one embodiment of the present invention; and
fig. 8 is a flowchart of a method of detecting mechanical timer jamming according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
An electric appliance and a method of detecting a mechanical timer jam according to an embodiment of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a block schematic diagram of an electrical apparatus according to an embodiment of the present invention. In one embodiment of the present invention, the electrical appliance may comprise a mechanical microwave oven or the like.
As shown in fig. 1, an electrical apparatus according to an embodiment of the present invention may include: mechanical timer 10, acquisition device 20 and control device 30.
Wherein the mechanical timer 10 may comprise a plurality of gears. The collecting device 20 is used for collecting a feedback signal of any one gear in the mechanical timer 10. The control device 30 is configured to determine whether the mechanical timer 10 is jammed according to the feedback signal, and control the load of the electrical apparatus to stop working when the mechanical timer 10 is jammed.
According to one embodiment of the present invention, the collecting device 20 may comprise: a magnet 21 and a hall module 22, wherein, as shown in fig. 4, the magnet 21 is mounted on any one of the gears; the hall module 22 is used for generating a feedback signal of any one gear when the hall module is in a vertical state with the magnet 21. For example, as shown in fig. 4.
It will be appreciated that when the timing is complete, the magnets on the gear and the hall element must return to a perpendicular position, referred to as a reset.
According to an embodiment of the present invention, as shown in fig. 3, the control device 30 may include: the main control module 31 is configured to determine whether the mechanical timer 10 is jammed according to the feedback signal, and output a shutdown signal when the mechanical timer 10 is jammed, and the switch module 32 is configured to control a load of the electrical appliance to stop working according to the shutdown signal.
In one embodiment of the present invention, the switch module 32 may include one of a relay and a thyristor.
Specifically, a mechanical microwave oven is taken as an example. In the mechanical microwave oven, after the time knob on the mechanical timer 10 is used for selecting time and the power knob is used for selecting power, the microwave generator works according to the set time and power, and in the process, the gear in the mechanical timer 10 rotates to control the switch to be switched on and off, so that the cooking work of the microwave oven is completed.
In the working process of the mechanical microwave oven, if the problems of broken wire of a motor winding, friction between scraps and a motor stator after cracking of motor magnetic steel, foreign matters attached to a gear, broken wire of welding spots of the motor winding and the like occur, the mechanical timer 10 stops working, the gear is not reset, the contact switch is still in an actuation state, and the microwave oven still continuously works at the moment. Because the mechanical timer 10 stops working, the microwave oven can work for a long time under the condition of no time limit, so that the temperature controller is easy to jump, the glass plate cracks and the like, and even the microwave oven can be on fire, thereby endangering the personal safety and the property loss of users.
Because the mechanical timer 10 finishes timing work through the interaction of gears, and the locking of the mechanical timer 10 shows that the gears stop rotating in the timing process, the invention controls the work of a load (a microwave generator) by detecting the gear state of the mechanical timer, thereby solving the problem of personal or property safety of a user caused by the locking of the mechanical timer.
Specifically, the magnet 21 is provided on any one of the gears, and the hall module 22 is placed below the magnet 21. When the gear rotates for a circle and the magnet 21 on the gear is perpendicular to the hall module 22, the hall module 22 outputs detection voltage under the action of current and magnetic field, the detection voltage is received by the control device 30, the gear state is judged, and then the load (microwave generator) is controlled to work according to the judgment result.
For example, after the timing or power knob is turned, the gear is turned, the main control module 31 starts to time according to the time of one rotation of the gear (i.e., the turning period of the gear) after detecting the signal fed back by the hall module 22, if the signal fed back by the hall module 22 (e.g., a high level signal) is not detected within a predetermined time (e.g., the time of one rotation), it can be determined that the mechanical timer 10 is stuck, and at this time, the main control module 31 controls the switch module 32 (e.g., controls the relay to be turned off) to turn off the microwave generator, so that the whole machine stops working.
Further, when the mechanical timer 10 is locked, the power is turned on again, the operation time of the whole machine is the time of one rotation of the gear, and at this time, if the signal (high level) fed back by the hall module 22 is not detected yet, the main control module 31 still turns off the microwave generator through the relay. So that the whole machine stops working.
According to an embodiment of the present invention, the main control module 31 is specifically configured to determine that the mechanical timer 10 is jammed when determining whether the mechanical timer 10 is jammed and when the rotation period of the gear is exceeded and no feedback signal is detected.
Specifically, after the whole machine is initially powered on, the main control module 31 actuates the relay, then the gear state is judged according to the output signal of the hall module 22, when the hall module 22 outputs a high level and the duration time of the high level signal exceeds the time of one rotation of the gear, the relay is switched from the actuated state to the disconnected state until the output signal of the hall module is changed from the high level signal to a low level signal, and the relay is switched from the disconnected state to the actuated state. After initial power-on, when the hall module 22 outputs a low level signal, it indicates that the timing knob is not at the position of returning to zero, and at this time, the relay is still in the attraction state, the main control module 31 starts to time by the time of one rotation of the gear, and after the time is over, if it is not detected that the output signal of the hall module is converted from the low level signal to the high level signal, it indicates that the gear is locked, and the main control module 31 drives the relay to disconnect the microwave generator. If the alternating high and low level signals are detected to appear, the gear works normally, and the relay is still in a pull-in state.
According to another embodiment of the present invention, as shown in fig. 5, the collecting device 20 may include: the transmission module 23 is mounted on any one of the gears for transmitting a light signal, and the sensing module 24 is used for generating a feedback signal of any one of the gears when the light signal is sensed.
According to still another embodiment of the present invention, as shown in fig. 6, the collecting device 20 may include: an infrared emission module 25 and an infrared detection module 26, wherein the infrared emission module 25 is installed on any one of the gears; the infrared detection module 26 is used for generating a feedback signal of any one gear when detecting the infrared signal emitted by the infrared emission module 25.
It should be noted that, in the two embodiments (fig. 5 and fig. 6), the state detection of the gear is realized in different manners, that is, the feedback signal of the gear is obtained, and the control logic after obtaining the feedback signal is the same as the control logic after obtaining the feedback signal shown in fig. 3.
In addition, in the above embodiments, a relay is taken as an example, and the load is turned on and off by using the relay, but of course, the load may also be controlled by using a thyristor.
As a specific example, as shown in fig. 7, the method for detecting the jamming of the mechanical timer according to the embodiment of the present invention may include the following steps:
and S101, initializing.
And S102, driving a relay to pull in.
S103, judging whether the timing knob is reset or not. Namely, whether the magnet is vertical to the hall module is judged. If yes, go to step S104; if not, step S104 is executed.
And S104, delaying for waiting (the time of one rotation of the gear).
S105, judging whether the detection signal changes. If yes, go to step S106; if not, step S109 is performed.
That is, whether the feedback signal is changed from a high level to a low level, i.e., the state of the gear is determined.
S106, time counting (time of one rotation of the gear) is started.
S107, whether the detection signal changes or not is judged. If yes, go to step S108; if not, step S109 is performed.
And S108, driving the relay to suck.
And S109, the timer is locked, and the relay is driven to be disconnected.
In summary, according to the electrical equipment in the embodiment of the present invention, the acquisition device acquires the feedback signal of any one gear in the mechanical timer, the control device determines whether the mechanical timer is stuck according to the feedback signal, and controls the load of the electrical equipment to stop working when the mechanical timer is stuck, so that the problem of personal safety or property loss of a user due to the fact that the electrical equipment continues to work when the mechanical timer is stuck can be effectively solved.
Fig. 8 is a flowchart of a method of detecting a mechanical timer jam according to an embodiment of the present invention. In one embodiment of the invention, the mechanical timer comprises a plurality of gears.
As shown in fig. 8, the method for detecting the jamming of the mechanical timer according to the embodiment of the present invention may include the following steps:
and S1, acquiring a feedback signal of any gear in the mechanical timer.
And S2, judging whether the mechanical timer is jammed according to the feedback signal.
And S3, when the mechanical timer is stuck, controlling the load of the electrical equipment to which the mechanical timer belongs to stop working.
According to an embodiment of the present invention, determining whether the mechanical timer is jammed according to the feedback signal includes: and if the rotation period of the gear is exceeded and no feedback signal is detected, judging that the mechanical timer is blocked.
It should be noted that, for details not disclosed in the method for detecting the jamming of the mechanical timer according to the embodiment of the present invention, please refer to details disclosed in the electrical apparatus according to the embodiment of the present invention, which are not described herein again.
According to the method for detecting the jamming of the mechanical timer, disclosed by the embodiment of the invention, the feedback signal of any gear in the mechanical timer is acquired, whether the mechanical timer is jammed is judged according to the feedback signal, and when the mechanical timer is jammed, the load of the electrical equipment to which the mechanical timer belongs is controlled to stop working, so that the problem that when the mechanical timer is jammed, the electrical equipment still continues to work to cause the whole machine to be on fire, and the personal safety or property loss of a user is caused can be effectively solved.
In addition, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the above-mentioned method for detecting the mechanical timer jamming.
By executing the method for detecting the jamming of the mechanical timer, the non-transitory computer-readable storage medium provided by the embodiment of the invention can effectively solve the problem that when the mechanical timer of the electrical equipment is jammed, the whole machine is on fire caused by continuous work, so that the personal safety or property loss of a user is caused.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. An electrical device, characterized in that it comprises:
a mechanical timer comprising a plurality of gears;
the acquisition device is used for acquiring a feedback signal of any gear in the mechanical timer;
the control device is used for judging whether the mechanical timer is stuck according to the feedback signal and controlling the load of the electrical equipment to stop working when the mechanical timer is stuck;
the control device includes:
the main control module is used for judging whether the mechanical timer is stuck according to the feedback signal and outputting a stop signal when the mechanical timer is stuck;
the switch module is used for controlling the load of the electrical equipment to stop working according to the stop signal;
the main control module is specifically used for judging whether the mechanical timer is jammed or not, and judging that the mechanical timer is jammed when the feedback signal is not detected after the rotation period of the gear is exceeded;
the collection device comprises:
a magnet mounted on the any one of the gears;
and the Hall module is used for generating a feedback signal of any one gear when the Hall module is in a vertical state with the magnet.
2. The electrical apparatus according to claim 1, characterized in that the acquisition means comprise:
the transmitting module is arranged on any one gear and is used for transmitting optical signals;
and the sensing module is used for generating a feedback signal of any one gear when the optical signal is sensed.
3. The electrical apparatus according to claim 1, characterized in that the acquisition means comprise:
the infrared emission module is arranged on any one gear;
and the infrared detection module is used for generating a feedback signal of any one gear when detecting the infrared signal transmitted by the infrared transmission module.
4. The electrical device of claim 1, wherein the switch module comprises one of a relay and a thyristor.
5. A method of detecting mechanical timer jamming, characterized in that an electrical appliance according to any of claims 1-4 is used to perform the method of detecting mechanical timer jamming, the mechanical timer comprising a plurality of gears, the method comprising:
collecting a feedback signal of any gear in the mechanical timer;
judging whether the mechanical timer is locked or not according to the feedback signal;
and when the mechanical timer is stuck, controlling the load of the electrical equipment to which the mechanical timer belongs to stop working.
6. The method of claim 5, wherein determining whether the mechanical timer is jammed according to the feedback signal comprises:
and if the feedback signal is not detected after the rotation period of the gear is exceeded, judging that the mechanical timer is blocked.
7. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements a method of detecting mechanical timer jamming as claimed in any one of claims 5 or 6.
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| CN105407561A (en) * | 2014-09-04 | 2016-03-16 | 三星电子株式会社 | Induction Device And Temperature Adjustment Method |
| CN205119162U (en) * | 2015-11-13 | 2016-03-30 | 钟菊晴 | Mechanical type microwave oven protection device |
| CN107051637A (en) * | 2017-04-05 | 2017-08-18 | 徐州工程学院 | A kind of back pressure type volume reduction former and its operating method |
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