CN102727969A - Control circuit for atomizers and method thereof - Google Patents

Abstract

The invention discloses a control circuit for an atomizer. The control circuit includes a key switch, which is used to send a switch signal for turning on or off the control circuit; and a locking function connected with the key switch A single-chip microcomputer, after the single-chip microcomputer receives the signal from the key switch, the single-chip microcomputer itself enters a locked state without outputting a signal, or unlocks; and a transistor with a signal amplification function connected to the output terminal of the single-chip microcomputer. The present invention can prevent the key switch from being turned on due to misoperation.

Description

Control circuit and method for atomizer

The patent application for the present invention is a divisional application. The application number of the original application is 201010527480.9, the application date is November 1, 2010, and the name of the invention is: oral suction portable atomizer.

technical field

The invention relates to an atomizing device for electronic cigarettes, in particular to a control circuit and method for the atomizer.

Background technique

Now people's lives and social activities are strengthened, and the communication between people is becoming more and more important, and many people are confused by problems such as bad breath. Although there are also items such as chewing gum and throat lozenges that can solve temporary needs, but Its waste produces new environmental pollution thereupon, as eaten chewing gum, packing tin plate etc.

In the early days, it was proposed to heat the medicinal liquid through a mechanical device for the user to use. Although the user is easy to accept in terms of usage habits, due to the unstable performance of the traditional mechanical structure, it is easily damaged and the operation is cumbersome. cause losses to users. With the development of science and technology, ultrasonic nebulizers appeared. Different from the heating of mechanical devices to achieve liquid atomization, based on the oscillation excitation of liquid by ultrasonic waves at a specific frequency, corresponding atomized droplets can be generated, which can be delivered to the human mouth to produce the feeling of smoking. This atomization scheme is somewhat similar to the common ultrasonic heater in the home, but the ultrasonic atomizer has the problems of small atomization volume and insufficient energy utilization.

Some existing atomizers currently on the market have the following problems: first, the liquid medicine is injected into the filling layer in the nozzle cavity, so it can be seen that the liquid medicine is not fresh enough, and the storage capacity of the liquid medicine is small. After finishing, the user must drop the liquid medicine in the atomizer before continuing to use it. In this way, if the user wants to use beauty treatment outdoors or at work, he must bring a bottle of liquid medicine to ensure the use. Carry a bottle with you and ask the user to instill it himself. Second, the structures of the existing atomizers in the market are all threaded connections. When users use them, they must first screw the battery in order to use them. This is extremely inconvenient, elegant, and somewhat unhygienic. Third, when the user uses the atomizer, the liquid medicine stored in the filling layer cannot evenly reach the heater, so that when the liquid medicine is heated, it cannot form droplets with a small diameter, and droplets with a large diameter It cannot enter the mouth of a person with the negative pressure of the population, and the large-diameter droplets fall to the vicinity of the heater under the action of gravity and cannot be heated.

Contents of the invention

The object of the present invention is to provide a control circuit for the atomizer and a control method for the atomizer in order to avoid misoperation to turn on the key switch. The technical scheme is as follows:

A control circuit for the atomizer, the control circuit includes a key switch, and the key switch is used to send a switch signal to turn on or off the control circuit;

And the single-chip microcomputer with locking function connected with the key switch, after the single-chip microcomputer receives the signal from the key switch, the single-chip microcomputer itself enters the locked state without output signal, or unlocks;

And a transistor with a signal amplification function connected with the output terminal of the single-chip microcomputer.

A control method for an atomizer, comprising the following steps:

Step (1), initializing the system: the single-chip microcomputer sets the time when the circuit enters the lock, and sets the time when the circuit is unlocked;

Step (2), the single-chip microcomputer detects the signal from the key switch output: the single-chip microcomputer in the locked state receives the switch signal from the Y times of the key switch in Q seconds, and the single-chip microcomputer unlocks; after unlocking, the single-chip microcomputer receives again from the key The signal of the switch, the circuit connects the single chip microcomputer to output the electrical signal to the transistor;

In step (3), the transistor amplifies the signal from the single-chip microcomputer and then supplies power to the load. When it is no longer in use, the single-chip microcomputer receives X times of switching signals from the key switch within P seconds, and the single-chip microcomputer enters the locked state. output signal.

A control method for an atomizer, comprising the following steps:

Step (1), initializing the system: the single-chip microcomputer sets the time when the circuit enters the lock, and sets the time when the circuit is unlocked;

Step (2), the single-chip microcomputer detects the signal from the key switch output: the single-chip microcomputer in the locked state receives the first continuous signal from the key switch output in N seconds, and the single-chip microcomputer is unlocked. After unlocking, the single-chip microcomputer receives the signal from the key switch again. The signal of the switch, the circuit connects the single chip microcomputer to output the electrical signal to the transistor;

Step (3), the transistor amplifies the signal from the single-chip microcomputer and outputs it to the load. When no longer used, if the single-chip microcomputer receives the second continuous signal from the key switch output in M seconds, the single-chip microcomputer enters the locked state. output signal.

The above scheme is adopted. Before the circuit is normally conducted, it needs to be unlocked by operating the key switch to make the circuit normally conduct. No accidents will happen, increasing the safety of users.

Description of drawings

Fig. 1 is the structural representation of atomizer of the present invention;

Fig. 2 is the structural representation of atomization device among the present invention;

Fig. 3 is a schematic diagram of the assembly structure of the atomizer and the power supply device of the present invention;

Fig. 4 is the schematic diagram of the control circuit in the present invention;

Fig. 5 is the flowchart of control circuit;

In the accompanying drawings, 10 is the housing, 11 is the front cover of the suction nozzle, and 12 is the rear cover of the suction nozzle;

20 is a liquid storage box, 21 is a box body, 22 is a box cover, 23 is a liquid isolation membrane, and 24 is an air flow channel;

30 is an atomizing device, 310 is a liquid suction nozzle seat, 311 is a heating device, 312 is a sleeve, 313 is an atomization chamber, 314 is a vent hole, 315 is a liquid guide hole; 320 is a liquid guide rope, and 321 is a liquid guide Cover, 322 is a catheter, 323 is a base; 330 is the atomizer main body, 331 is a contact conductor, 332 is a contact conductor base, and 333 is an air inlet;

41 is a casing, 42 is a battery, 43 is a control circuit, and 44 is a contact thimble.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 to Fig. 3, the mouth suction portable nebulizer of the present invention. After the atomizer of the present invention is connected to the power supply device, the stored medicinal liquid is heated to form a mist state, and then enters the mouth of the person. The medicinal liquid can be of the health care type, or it can be used to remove bad breath. It can also be other types of medicinal liquids that are beneficial to the human body. The atomizer of the present invention is mainly composed of three parts: a housing 10 , a liquid storage box 20 and an atomizing device 30 . The following will further illustrate the present invention through a detailed description of specific structures and functions.

Referring to FIG. 1 , the housing 10 is made of metal material, and the shape of the longitudinal section of the housing 10 is oval, and of course it can also be a circle or a rectangle. One end of the housing 10 is fixedly connected to the suction nozzle by plugging, and the suction nozzle is composed of a suction nozzle front cover 11 and a suction nozzle rear cover 12 . The front cover 11 of the suction nozzle and the rear cover 12 of the suction nozzle are provided with ventilation holes, which are used to transmit the negative pressure force generated by the mouth of the person, and to allow the atomized medicinal liquid to reach the mouth of the person through the ventilation holes.

Referring to FIG. 1 , a liquid storage box 20 with a liquid storage cavity is disposed inside the casing, and the liquid storage box 20 is used for storing medicinal liquid. The liquid storage box 20 includes a box body 21 and a box cover 22 connected with the box body. The box cover is provided with a through hole for the insertion of the liquid suction nozzle. The through hole is provided with a liquid isolation membrane 23 that can be punctured to isolate the liquid. After the film 23 is pierced by the liquid suction nozzle, it forms a liquid seal with the liquid suction nozzle. The cavity of the liquid storage box of the present invention is not provided with any filling layer, and the liquid medicine is directly stored in the cavity, which can prevent the liquid medicine from being stale in the filling layer for a long time, and the liquid medicine used by the user is relatively fresh. The cross-sectional shape of the box body 21 is the same as that of the housing. The box body 21 and the housing 10 can be clearance fit or transition fit. A gas flow channel 24 for the passage of gas is provided.

Referring to Figures 1 and 2, one end of the liquid storage box is connected to an atomizing device 30, and the smoke liquid in the liquid storage box is output to the atomizing device under negative pressure. The atomization device consists of three parts: atomization component, liquid guide component and connection component.

Referring to FIG. 2 , the atomization assembly consists of a liquid suction nozzle seat 310 , a heating device 311 and a sleeve 312 . The liquid suction nozzle seat 310 is made of ceramic material. One end of the liquid suction nozzle seat 310 is provided with an atomization chamber 313; the other end of the liquid suction nozzle seat 310 is provided with a vent hole 314 communicating with the atomization chamber. The atmosphere is connected with each other to achieve the purpose of forming a negative pressure when inhaling. It communicates with the atomization chamber through the vent hole. in the mouth. The side wall of the liquid suction nozzle seat is also provided with a liquid guide hole 315 communicating with the atomization chamber. on the orifice. The heating device 311 is fixed in the atomizing chamber 313. In this embodiment, the heating device generates heat through the action of electric current. Therefore, the heating device 311 can use platinum wire or nickel-chromium alloy or iron-chromium-aluminum alloy wire containing rare earth elements. It can also be made into sheets or rings. The sleeve 312 is sleeved on the outer wall of the liquid suction nozzle seat 310, and the sleeve 312 can absorb part of the heat transmitted from the liquid suction nozzle seat 310, reducing the heat from the liquid suction nozzle seat 310 to be directly transferred to the shell.

Referring to FIG. 2 , the liquid guiding assembly includes a liquid suction nozzle, a liquid guiding rope 320 and a liquid guiding sleeve 321 . The liquid suction nozzle includes a catheter 322 and a base 323, one end of the catheter 322 is connected to the base, the other end of the catheter is a free end, and the end face of the free end is a slope or a triangle. In this embodiment, the free end The end face of the end is a slope face. The end face of the free end is a slope or a triangle, which is conducive to piercing the liquid isolation film 23 on the lid 22 easily. The contact part between the liquid suction nozzle and the liquid storage box forms a liquid seal, that is, after the free end of the catheter pierces the liquid isolation film 23 on the box cover 22, it is inserted into the liquid storage cavity of the box body 21, due to the liquid isolation The membrane 23 is made of rubber, so the contact part of the catheter and the liquid isolation membrane 23 forms a liquid seal. The other end of the liquid suction nozzle communicates with the atomization chamber of the liquid suction nozzle seat, because the seat body 323 is positioned above the mouth of the atomization chamber 313 or contacts with the mouth of the atomization chamber 313 (because the surface area of the seat body is smaller than the atomization chamber 313, so the mouth of the atomization chamber will not be blocked), and the seat body can be communicated with the liquid suction nozzle seat.

Referring to Fig. 2, for the liquid guide rope 320 in the liquid guide assembly: the middle part of the liquid guide rope 320 is wound on the heating device 311, and the two ends of the liquid guide rope are introduced into the suction nozzle, that is, the two ends of the liquid guide rope One end is introduced into the catheter 322. The liquid guide rope can not only seal the medicinal liquid in the box body 21, so that the medicinal liquid will not flow into the atomization chamber 313 along the liquid suction nozzle under the action of gravity, but also can make the medicinal liquid in the box body 21 under the action of negative pressure. The liquid medicine in the liquid is guided to the heating device. Since the liquid guiding rope is arranged on the heating device in a winding way, the liquid medicine can be evenly reached to the heating device through the action of the liquid guiding rope, so that when the liquid medicine is heated All can form micro-droplets with very small diameters, and the micro-droplets with large diameters are reduced to almost none, so that within the range of normal negative pressure force, the sucked medicinal liquid can be heated to form mist and reach people's mouth.

Referring to Fig. 2, for the liquid guide sleeve 321 in the liquid guide assembly: the liquid guide sleeve 321 that can store large-diameter suspended liquid droplets is set on the outer wall surface of the liquid suction nozzle seat, so that the liquid guide sleeve 321 is located between the liquid suction nozzle seat and the sleeve. Between tubes 312. Drain sleeves are made of nickel mesh with multiple layers of foam. When the liquid medicine is sucked out under a large negative pressure force, part of the liquid medicine will not be heated, but will flow along with the negative pressure airflow. or the temperature of the heating device is not high enough to heat the liquid medicine incompletely, resulting in too many large-diameter droplets in the formed mist. When these large-diameter droplets flow with the negative pressure airflow, they are also The action of the liquid guide sleeve 321, through which the unheated liquid medicine can be absorbed, and the liquid medicine passes through the liquid guide sleeve and the liquid guide hole 315 to reach the vicinity of the heating device in the atomization chamber, thereby being absorbed The heating device heats the atomization. Therefore, the liquid guide sleeve 321 plays the role of recovering the medical solution and guiding the recovered medical solution to the heating device. Moreover, through the way of the liquid guide sleeve 321, it is completely completed under the action of the gravity of the liquid medicine, and there is no need to artificially use negative pressure force to heat and atomize the recovered liquid medicine, which has the advantage of saving labor.

Referring to FIG. 2 , the connecting assembly of the atomizing device 30 fixed on the other end of the casing 10 : the connecting assembly includes an atomizer main body 330 , a contact conductor 331 connected to the heating device 311 through wires, and a contact conductor base 332 . One end of the atomizer main body 330 located in the housing forms a cavity for accommodating and maintaining the atomization assembly, the sleeve 312 and other parts of the atomization assembly are fixed in this cavity, and the sleeve 312 and the cavity adopt an interference way to cooperate. The side wall of the nebulizer main body is provided with an air inlet 333 communicating with the cavity, and this air inlet is used for conducting the atmosphere. The contact conductor base 332 is fixed on the other end of the atomizer main body exposed to the housing 10, and the contact conductor 331 is fixed on the contact conductor base 332. There are two contact conductors 331, which are respectively used to connect the positive pole and the negative pole of the power supply. The contact conductors are all provided with holes for the contact thimbles to access. In addition, a step is provided on the outer surface of the atomizer main body 330 . The atomizer main body 330 is first used to support the atomizing assembly, and secondly used to connect the power supply device.

Referring to FIG. 3 , the end of the atomizer main body 330 exposed from the casing 10 is connected to a power supply device, the power supply device includes a casing 41 , a battery 42 , a control circuit 43 and a contact thimble 44 disposed in the casing. One end of the casing 41 leaves a space for the atomizer body 330 to be inserted. The atomizer body 330 forms a plug-in connection with the casing 41. After the atomizer body 330 is inserted into the casing 41, the contact thimble is inserted into the contact conductor. in the hole. The control circuit is connected with the battery, and the output terminal of the control circuit is connected with the contact thimble.

With reference to Fig. 4, described control circuit comprises key switch SW, is used to send the switch signal that connects or disconnects control circuit; The single-chip microcomputer IC1 with locking effect that is connected with key switch, after this single-chip microcomputer receives the signal from key switch, The single-chip microcomputer itself enters into a locked state without an output signal, or unlocks; and a transistor Q1 with a signal amplification function connected to the output terminal of the single-chip microcomputer. The control circuit also includes a detector Q2 for detecting the battery voltage and whether the output is short-circuited, and a light-emitting diode Q2 for indicating the working state of the control circuit. The detector D1 and the light-emitting diode D1 are connected to the single-chip microcomputer respectively.

The working process of the atomizer of the present invention is (the arrow in Fig. 1 indicates the flow direction of the airflow and the formed aerosol): the user connects the mouth-suction portable atomizer with the power supply device, activates the key switch, and releases the circuit locking. Press the key switch again, the current flows through the contact conductor 331, and the heating device 311 in the atomizing assembly is turned on to generate heat. Due to the negative pressure force, the liquid medicine in the cavity of the liquid storage box is guided to the heating device 311 through the liquid suction nozzle and the liquid guide rope 320, and the liquid medicine is instantly atomized under the high temperature of the electric heating device 311 . The aerosol formed by the small-diameter droplets suspended in the negative-pressure airflow flows into the nozzle front cover 11 through the airflow channel 24, then flows into the nozzle rear cover 12, and is finally sucked into the mouth by the user. After the liquid medicine is used up, the suction nozzle can be pulled out according to the user's own wishes, and the liquid medicine can be added to the liquid storage box. A new liquid storage device continues to be used, and the old disposable atomizer can be thrown into the recyclable trash bin, which can be decomposed after recycling without environmental pollution.

Referring to Fig. 4 and Fig. 5, the present invention also provides a patented control circuit for an atomizer, the control circuit includes a key switch SW, which is used to send a switch signal to turn on or off the control circuit; it is connected to the key switch Single-chip microcomputer IC1 with locking function, after the single-chip microcomputer receives the signal from the key switch, the single-chip microcomputer itself enters the locked state without output signal, or unlocks; the transistor Q1 with signal amplification function connected with the output terminal of the single-chip microcomputer. The control circuit also includes a detector Q2 for detecting the battery voltage and whether the output is short-circuited, and a light-emitting diode Q2 for indicating the working state of the control circuit. The detector D1 and the light-emitting diode D1 are connected to the single-chip microcomputer respectively.

The present invention also provides the following two control methods of the nebulizer in the following two implementations. These two control methods are mainly to prevent the user from accidentally touching the switch button in daily life, so that the nebulizer starts to work.

Implementation mode one:

Include the following steps:

Step 1, initialize the system: the microcontroller sets the time when the circuit enters the lock, and sets the time when the circuit is unlocked;

Step 2, the single-chip microcomputer detects the signal from the key switch output: the single-chip microcomputer in the locked state receives 5 switching signals from the key switch within 1.5 seconds, and the single-chip microcomputer unlocks. Since both locking and unlocking are to turn on the key switch 5 times within 1.5 seconds, if the user makes the switch turn on once or twice due to misoperation, the microcontroller will not be unlocked. And because the time is short, there will be no such situation that the key switch is turned on 5 times within 1.5 seconds due to misoperation, so this setting is safer.

After unlocking, the single-chip microcomputer receives the signal from the key switch again, and the circuit is connected to the single-chip microcomputer to output an electrical signal to the transistor.

Step 20, detecting whether the circuit is connected, that is, the single-chip microcomputer judges whether the level on its No. 2 pin is low level.

Step 21, if the detection result of step 20 is yes, then the single-chip microcomputer outputs the obtained battery voltage to the detector, judges whether the battery voltage is lower than 3.3V through the detector Q2, and delivers the judgment result to the single-chip microcomputer;

Step 210, if the judgment results of the three consecutive steps in step 21 are all yes, then the single-chip microcomputer enters the low-voltage protection state, and at the same time, the single-chip microcomputer controls the light-emitting diode to flash 40 times at a frequency of 2 Hz;

Step 22, if the judgment result of step 21 is no, judge whether the circuit is short-circuited by the detector Q2, and send the judgment result to the single-chip microcomputer;

Step 220, if the judgment result of step 22 is yes, the single-chip microcomputer enters the short-circuit protection state, and simultaneously controls the light-emitting diode to flash 3 times at a frequency of 3 Hz;

If the judgment result of step 22 is no, the single-chip microcomputer outputs a signal to the light-emitting diode, so that the light-emitting diode gradually brightens, and reaches the brightest within 0.6 seconds. Signal;

In step 3, the transistor Q1 amplifies the signal from the microcontroller and then supplies power to the load. If there is no need to use it, the single-chip microcomputer receives 5 switching signals from the key switch within 1.5 seconds, and the single-chip microcomputer enters the locked state without output signal. After the circuit is locked, the circuit can be prevented from being connected immediately due to misoperation, so the atomizer will not work due to misoperation and avoid scalding the user. If continue to use, go to step 4.

Step 4, during the process of executing step 3, the single-chip microcomputer IC1 detects whether the key switch SW is disconnected at all times;

Step 41, if the detection result of step 4 is no, then whether the single-chip microcomputer detection circuit is continuously turned on for 10 seconds; if the detection result is no, then return to step 4 to continue detection;

Step 42, if the detection result of step 41 is yes, then control the light-emitting diode to flash 10 times, and enter the standby state after the flash ends;

In step 43, if the detection result in step 4 is yes, then the single chip microcomputer has no signal output to the transistor Q1, and the transistor Q1 is turned off and enters a standby state. After entering the standby state, you can choose to turn on the key switch SW to continue to conduct the circuit. If not in use, turn on the key switch 5 times within 1.5 seconds to make the circuit enter the locked state.

Step 5, the single-chip microcomputer detects whether there is current input to the No. 5 pin. If there is current input, it means that the external power supply is charging the battery. At this time, the output signal of the No. 5 pin of the single-chip microcomputer turns on the transistor Q1 to charge the battery. Check whether there is current input every 6 seconds, and enter the standby state when no current is detected, or return to step 20.

Implementation mode two:

This implementation mode is completely the same as the above implementation mode except that the unlocking circuit lock and the locking circuit are different from the above one implementation mode.

The single-chip microcomputer detects the signal from the key switch output: the single-chip microcomputer in the locked state receives the first continuous signal from the key switch output in 4 seconds, and the single-chip microcomputer is unlocked. After unlocking, the single-chip microcomputer receives the signal from the key switch again, and the circuit Turn on the microcontroller to output electrical signals to the transistor. The transistor amplifies the signal from the microcontroller and outputs it to the load. If the MCU receives the second continuous signal from the key switch output in 8 seconds, the MCU enters the locked state and has no output signal; that is, press and hold the key switch for 8 seconds to continuously output the signal of the switch closing to the MCU within this time , the microcontroller can make a decision to lock the circuit.

Claims (7)

1. A control circuit for an atomizer, characterized in that: the control circuit includes a key switch, and the key switch is used to send a switch signal to connect or disconnect the control circuit; And the single-chip microcomputer with locking function connected with the key switch, after the single-chip microcomputer receives the signal from the key switch, the single-chip microcomputer itself enters the locked state without output signal, or unlocks; And a transistor with a signal amplification function connected with the output terminal of the single-chip microcomputer. 2. The control circuit for atomizer according to claim 1, characterized in that: the control circuit also includes a voltage detector for detecting whether the battery voltage and the output are short-circuited, and a voltage detector for indicating the working state of the control circuit The light emitting diode, the voltage detector and the light emitting diode are respectively connected with the single chip microcomputer. 3. A method for controlling the atomizer according to claim 1, comprising the following steps: Step (1), initializing the system: the single-chip microcomputer sets the time when the circuit enters the lock, and sets the time when the circuit is unlocked; Step (2), the single-chip microcomputer detects the signal from the key switch output: the single-chip microcomputer in the locked state receives the switch signal from the Y times of the key switch in Q seconds, and the single-chip microcomputer unlocks; after unlocking, the single-chip microcomputer receives again from the key The signal of the switch, the circuit connects the single chip microcomputer to output the electrical signal to the transistor; In step (3), the transistor amplifies the signal from the single-chip microcomputer and then supplies power to the load. When it is no longer in use, the single-chip microcomputer receives X times of switching signals from the key switch within P seconds, and the single-chip microcomputer enters the locked state. output signal. 4. A control method of an atomizer as claimed in claim 3, characterized in that, providing a detector and a light-emitting diode respectively connected with a single-chip microcomputer, comprising the following steps: Step (20) detects whether the circuit is connected; Step (21), if the detection result of step (20) is yes, then the single-chip microcomputer outputs the voltage of the battery that obtains to the detector, judges whether the battery voltage is lower than 3.3V by the detector, and delivers the judgment result to the single-chip microcomputer; Step (210), if step (21) three consecutive judgment results are all yes, then the single-chip microcomputer enters the low-voltage protection state, and the single-chip microcomputer controls the light-emitting diode to flash 40 times at the same time. 5. A method for controlling the atomizer according to claim 4, characterized in that: Step (22), if the judgment result of step (21) is no, judge whether the circuit is short-circuited by the detector, and the judgment result is delivered to the single-chip microcomputer; Step (220), if the judgment result of step (22) is yes, the single-chip microcomputer then enters the short-circuit protection state, controls LED to flash 3 times simultaneously; If the judgment result is no, the single-chip microcomputer outputs signal to light-emitting diode, makes light-emitting diode increase gradually lights up, and go to step (3) to supply power to the load. 6. A method for controlling the atomizer according to claim 5, characterized in that: Step (4), the single-chip microcomputer detects whether the key switch is disconnected; Step (41), if the detection result of step (4) is no, then whether the single-chip microcomputer detection circuit is continuously turned on for 10 seconds; if the detection result is no, then return to step (4) to continue detection; Step (42), if the detection result of step (41) is yes, then control the light-emitting diode to flash 10 times, and enter the standby state after the flash ends; Step (43), if the detection result of step (4) is yes, then the single chip microcomputer has no signal output to the transistor, and enters the standby state. 7. A method for controlling an atomizer as claimed in claim 1, comprising the following steps: Step (1), initializing the system: the single-chip microcomputer sets the time when the circuit enters the lock, and sets the time when the circuit is unlocked; Step (2), the single-chip microcomputer detects the signal from the key switch output: the single-chip microcomputer in the locked state receives the first continuous signal from the key switch output in N seconds, and the single-chip microcomputer is unlocked. After unlocking, the single-chip microcomputer receives the signal from the key switch again. The signal of the switch, the circuit connects the single chip microcomputer to output the electrical signal to the transistor; Step (3), the transistor amplifies the signal from the single-chip microcomputer and outputs it to the load. When no longer used, if the single-chip microcomputer receives the second continuous signal from the key switch output in M seconds, the single-chip microcomputer enters the locked state. output signal.

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