Atomizer control method and atomizer

Abstract

The invention discloses an atomizer control method and an atomizer, and the method comprises the following steps: a microphone of the atomizer detects air pressure change and generates corresponding signals to an MCU (Microprogrammed Control Unit), and the signals comprise an opening signal representing that the air pressure drops to reach a first air pressure threshold value and a closing signal representing that the air pressure rises to reach a second air pressure threshold value; wherein the first air pressure threshold is greater than the second air pressure threshold; the MCU judges whether an opening condition or a termination condition is met according to the received signal, the opening condition is met when the opening signal is received, and the termination condition is met when the closing signal is received; when the starting condition is met, the MCU controls the power output module to start to work, so that atomized liquid at the atomizing core is atomized; and when the termination condition is met, the MCU controls the power output module to stop working, so that atomization of the atomization liquid at the atomization core is stopped. The problems that the change of the air pressure at the microphone is slower than that of the air pressure in the air passage, and the second air pressure threshold value is the same as the first air pressure threshold value, so that aerosol remains in the air passage and condensate is easily generated are solved.

Description

Technical Field

[0001] The present invention relates to the field of atomizers, and in particular to an atomizer control method and an atomizer. Background Art

[0002] Most of the atomizers currently used in the market use an air pressure sensor switch (hereinafter referred to as a "microphone" according to industry practice) as a starting atomization device; when the electronic atomizer is working, when the user inhales the atomizer, the air pressure inside the atomizer changes. The atomizer uses a microphone to monitor the air pressure. When the air pressure change exceeds a certain threshold, the microphone outputs a level change signal to the MCU. After the MCU detects the level change signal, it controls the power output module of the atomizer accordingly to start or shut it down.

[0003] When the atomizer device is working, the user inhales and generates negative pressure in the device. Negative pressure here refers to the gas pressure in the device being lower than the atmospheric pressure of the environment in which the atomizer device is located during the inhalation state, and the difference between the two is less than 0. When the negative pressure is lower than the threshold, the microphone and the MCU control the power output module to make the atomizer core start working and generate atomized liquid aerosol. When the user stops inhaling, the gas pressure in the device rises from below the threshold to above the threshold. The microphone and the MCU control the power output module to make the atomizer core stop generating atomized liquid aerosol. At this time, there is a large amount of atomized liquid aerosol that has not been extracted in the airway of the device. These aerosols will condense and deposit to become condensate in the device. When there is a lot of condensate, it will affect the atomizer's suction resistance and taste, and even leak out of the device and come into contact with customers, causing a deterioration in the inhalation experience. Even the condensate will penetrate into the device and cause damage to the electronic system.

[0004] At the same time, the closing pressure threshold of the microphone currently used in the market is the same as the opening pressure threshold. Therefore, when the user stops inhaling during the smoking experience, the air pressure at the microphone changes slower than the airway pressure, and the air pressure will be delayed to reach the closing threshold of the microphone. At this time, the MCU still receives the opening signal of the microphone and keeps turning on the MOS to power the heating wire, causing the atomized liquid to continue to atomize, exacerbating the generation of condensed liquid. Summary of the invention

[0005] The main purpose of the present invention is to provide a nebulizer control method and a nebulizer, which are used to solve the problem that the air pressure at the microphone changes slower than the air pressure in the airway, and the closing air pressure threshold is the same as the opening air pressure threshold, resulting in aerosol remaining in the airway and easily generating condensate.

[0006] The present invention provides an atomizer control method, comprising the following steps:

[0007] The microphone of the atomizer generates corresponding signals to the MCU according to the detected air pressure changes. The signals include an on signal representing that the air pressure drops to a first air pressure threshold and a off signal representing that the air pressure rises to a second air pressure threshold. The first air pressure threshold is greater than the second air pressure threshold.

[0008] The MCU determines whether the start condition or the termination condition is met based on the received signal. If the start signal is received, the start condition is met; if the shutdown signal is received, the termination condition is met.

[0009] When the start-up conditions are met, the MCU controls the power output module to start working, so that the atomizing liquid at the atomizing core is atomized;

[0010] When the termination condition is met, the MCU controls the power output module to stop working, so that the atomization liquid at the atomization core stops atomizing.

[0011] Furthermore, the atomizer includes a first microphone and a second microphone, the first microphone and the second microphone each have only one judgment threshold, the judgment threshold of the first microphone is greater than the judgment threshold of the second microphone, and the microphone of the atomizer detects changes in air pressure and generates a corresponding signal to the MCU, the steps include:

[0012] When the first microphone detects that the air pressure drops to its judgment threshold, it turns on and sends a first signal to the MCU, and the first signal serves as a turn-on signal;

[0013] When the first microphone detects that the air pressure rises to its judgment threshold, it turns off and sends a second signal to the MCU;

[0014] When the second microphone detects that the air pressure drops to its judgment threshold, it turns on and sends a third signal to the MCU;

[0015] When the second microphone detects that the air pressure rises to its judgment threshold, it turns off and sends a fourth signal to the MCU, and the fourth signal serves as a shutdown signal.

[0016] Furthermore, the step of the MCU judging whether the start condition or the termination condition is met according to the received signal includes:

[0017] When the MCU receives the first signal, it determines that the start condition is met;

[0018] When the MCU receives the fourth signal instead of the third signal, it is determined that the termination condition is met.

[0019] Furthermore, the step of the MCU judging whether the start condition or the termination condition is met according to the received signal further includes:

[0020] When the MCU receives only the second signal instead of the first signal, it is determined that the termination condition is met.

[0021] Furthermore, the atomizer includes a third microphone, and the third microphone is provided with different judgment thresholds, namely a first air pressure threshold and a second air pressure threshold, and the first air pressure threshold is greater than the second air pressure threshold;

[0022] The steps of the microphone of the atomizer detecting the air pressure change and generating a corresponding signal to the MCU include:

[0023] When the third microphone detects that the air pressure drops to a first air pressure threshold, it sends a first signal to the MCU;

[0024] When the third microphone detects that the air pressure rises to the first air pressure threshold, it sends a second signal to the MCU;

[0025] When the third microphone detects that the air pressure drops to the second air pressure threshold, it sends a third signal to the MCU;

[0026] When the third microphone detects that the air pressure rises to the second air pressure threshold, a fourth signal is sent to the MCU.

[0027] Furthermore, the step of the MCU judging whether the start condition or the termination condition is met according to the received signal includes:

[0028] When the MCU receives the first signal, it determines that the start-up condition is met;

[0029] When the MCU receives the second signal or the fourth signal, it determines that the termination condition is met.

[0030] Furthermore, the microphone is electrically connected to the MCU, and the signal sent by the microphone to the MCU is a level signal.

[0031] The present application also proposes an atomizer, which includes an MCU, a microphone, a power output module and an atomizer core, and can implement any of the above-mentioned atomizer control methods.

[0032] The present invention proposes an atomizer control method and an atomizer, wherein the first air pressure threshold is less than the second air pressure threshold, and therefore, atomization is turned off earlier than in the past. When a user stops inhaling during the smoking experience, because the air pressure at the microphone changes more slowly than the air pressure in the airway, atomization is turned off in advance, thereby reducing the amount of aerosol generated in the airway and allowing the existing aerosol in the airway to be sucked away at the end of the user's inhalation, making it more difficult for condensate to be generated. The problem that the air pressure at the microphone changes more slowly than the air pressure in the airway, and the closing air pressure threshold is the same as the opening air pressure threshold, resulting in aerosol remaining in the airway and easy generation of condensate is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the steps of an embodiment of an atomizer control method of the present invention;

[0034] Figure 2This is a control flow chart of an electronic cigarette main control MCU identifying a microphone signal in an embodiment of an atomizer control method of the present invention. DETAILED DESCRIPTION

[0035] The technical solution of this article will be further described in detail below in conjunction with the accompanying drawings.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement of the components under a certain posture (as shown in the drawings). If the certain posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In addition, the step sequence in the following method embodiments is only an example and not a strict limitation.

[0039] Reference Figure 1-2 In some embodiments, the present invention provides a method for controlling an atomizer, comprising the following steps:

[0040] S1. The microphone of the atomizer detects the change of air pressure and generates a corresponding signal to the MCU. The signal includes an on signal representing that the air pressure drops to a first air pressure threshold and a off signal representing that the air pressure rises to a second air pressure threshold. The first air pressure threshold is less than the second air pressure threshold.

[0041] S2, MCU determines whether the start condition or termination condition is met according to the received signal. When the start signal is received, the start condition is met, and when the shutdown signal is received, the termination condition is met;

[0042] S3. When the start-up conditions are met, the MCU controls the power output module to start working, so that the atomizing liquid at the atomizing core is atomized;

[0043] S4. When the termination condition is met, the MCU controls the power output module to terminate the operation, so that the atomization liquid at the atomization core stops atomizing.

[0044] Specifically, in the above step S1, in some embodiments, the air pressure in this article is relative pressure, that is, the difference between the air pressure in the device and the atmospheric pressure of the environment in which the device is located; because the air pressure in the device is lower than the atmospheric pressure of the environment in which the device is located during the user's inhalation of the atomizer, the "threshold" in this article is a negative value, and the microphone is used to detect negative pressure. The air pressure change mentioned in this article refers to the change in the magnitude of the negative pressure. The user inhales the aerosol and generates negative pressure in the device. When the microphone in the closed state detects that the air pressure drops to a first air pressure threshold, the microphone turns to the open state and sends an open signal representing that the microphone is in the open state. When the microphone detects that the air pressure rises to the second air pressure threshold, the microphone changes from the open state to the closed state, and sends a closing signal representing that the microphone is in the closed state to the MCU; the first air pressure threshold is significantly higher than the second air pressure threshold, so that when the user stops inhaling, the microphone reaches the closed state faster, so that the atomized liquid at the atomization core stops atomizing; in one embodiment, the opening threshold is -150±50Pa, and the closing threshold is -300±50Pa. The positive and negative values ​​here take into account the measurement error of the microphone itself. During the inhalation process, the pressure at the microphone is about 0 to -1000Pa.

[0045] In the above step S2, according to the preset rules, the MCU determines whether the signal meets the start condition or the termination condition based on the signal transmitted by the microphone. In some embodiments, when the start signal is received, it is determined that the start condition is met, and when the shutdown signal is received, it is determined that the termination condition is met.

[0046] In the above step S3, when the start-up conditions are met, the MCU controls the power output module to start working, so that the atomizing liquid at the atomizing core is atomized, and the aerosol in the airway is increased for the user to inhale. As the user inhales, the negative pressure in the airway increases, and the air pressure at the microphone head also decreases.

[0047] In the above step S4, the user stops inhaling, the air pressure increases, and when the air pressure increases to the second air pressure threshold, the termination condition is met; when the termination condition is met, the MCU controls the power output module to terminate the operation, so that the atomization liquid at the atomization core stops atomizing, because the first air pressure threshold is much greater than the second air pressure threshold.

[0048] The first air pressure threshold is greater than the second air pressure threshold. Therefore, atomization will be turned off earlier than in the past. When the user stops inhaling during the smoking experience, the air pressure at the microphone changes more slowly than the air pressure in the airway. Turning off atomization in advance can reduce the amount of aerosol generated in the airway and allow the existing aerosol in the airway to be sucked away at the end of the user's inhalation, making it more difficult for condensate to be generated. This solves the problem that the air pressure at the microphone changes more slowly than the air pressure in the airway, and the closing air pressure threshold is the same as the opening air pressure threshold, resulting in aerosol remaining in the airway and easy generation of condensate.

[0049] Further, in some embodiments, the atomizer includes a first microphone and a second microphone, the first microphone and the second microphone each have only one judgment threshold, the judgment threshold of the first microphone is greater than the judgment threshold of the second microphone, and the microphone of the atomizer generates a corresponding signal to the MCU according to the detected air pressure change, step S1 includes:

[0050] S11, when the first microphone detects that the air pressure drops to its judgment threshold, it turns on and sends a first signal to the MCU, and the first signal serves as a turn-on signal;

[0051] S12, when the first microphone detects that the air pressure rises to its judgment threshold, it turns off and sends a second signal to the MCU;

[0052] S13, when the second microphone detects that the air pressure drops to its judgment threshold, it turns on and sends a third signal to the MCU;

[0053] S14: When the second microphone detects that the air pressure rises to its judgment threshold, it turns off and sends a fourth signal to the MCU, where the fourth signal serves as a shut-down signal.

[0054] Specifically, in the above steps S11-S14, in some embodiments, the first microphone and the second microphone are respectively connected to two pins of the MCU, the judgment threshold of the first microphone is much greater than the judgment threshold of the second microphone, in some embodiments, the first signal, the second signal, the third signal, and the fourth signal are level signals, in some embodiments, the first signal and the third signal are high level, and the second signal and the fourth signal are low level.

[0055] Further, in some embodiments, step S2 of the MCU determining whether the start condition or the termination condition is met according to the received signal includes:

[0056] S21, when the MCU receives the first signal, it determines that the start condition is met;

[0057] S22: When the MCU receives the fourth signal instead of the third signal, it determines that the termination condition is met.

[0058] Specifically, in the above step S21, when the MCU receives the first signal, it means that the air pressure drops to reach the first air pressure threshold, and the first microphone is in the on state, which meets the on condition.

[0059] In the above step S22, when the MCU receives the fourth signal instead of the third signal, it means that the air pressure rises to reach the second air pressure threshold, the second microphone is in the off state, and it is determined that the termination condition is met.

[0060] Furthermore, in some embodiments, the step S2 in which the MCU determines whether the start condition or the termination condition is met according to the received signal further includes:

[0061] S23: When the MCU receives only the second signal instead of the first signal, it is determined that the termination condition is met.

[0062] Specifically, in the above step S23, when the MCU receives the fourth signal representing that the air pressure rises to reach the judgment threshold of the second microphone after the user stops puffing, when the MCU only receives the second signal instead of the first signal, it represents that the air pressure generated by the user's puffing cannot reach the judgment threshold of the second microphone, and the second microphone cannot be changed to the unopened state, so as to cope with the situation that the user's puffing force is very small.

[0063] Further, refer to Figure 2 In some embodiments, a solution in which the atomizer includes a single third microphone is adopted instead of a solution in which the atomizer includes a first microphone and a second microphone. The third microphone is provided with different judgment thresholds, which are a first air pressure threshold and a second air pressure threshold, respectively. The first air pressure threshold is greater than the second air pressure threshold.

[0064] Step S1 of the microphone of the atomizer generating a corresponding signal to the MCU according to the detected air pressure change includes:

[0065] S15, sending a first signal to the MCU when the third microphone detects that the air pressure drops to a first air pressure threshold;

[0066] S16, sending a second signal to the MCU when the third microphone detects that the air pressure rises to the first air pressure threshold;

[0067] S17, sending a third signal to the MCU when the third microphone detects that the air pressure drops to the second air pressure threshold;

[0068] S18. When the third microphone detects that the air pressure rises to the second air pressure threshold, a fourth signal is sent to the MCU.

[0069] Specifically, in the above steps S15-S18, the third microphone is provided with different judgment thresholds, namely a first air pressure threshold and a second air pressure threshold, the first air pressure threshold is much greater than the second air pressure threshold, and the air pressure change can be directly judged through the third microphone, and a signal is sent, wherein the first signal is an on signal, and the second signal and the fourth signal are off signals; the first signal, the second signal, the third signal, and the fourth signal are level signals.

[0070] Further, in some embodiments, step S2 of the MCU determining whether the start condition or the termination condition is met according to the received signal includes:

[0071] S24, when the MCU receives the first signal, it determines that the start-up condition is met;

[0072] S25. When the MCU receives the second signal or the fourth signal, it determines that the termination condition is met.

[0073] Specifically, in the above steps S24-S25, when the MCU receives the first signal, it means that the air pressure drops to reach the first air pressure threshold, and the third microphone is in the on state, and it is determined that the on condition is met; when the MCU receives the second signal or the fourth signal, it means that the air pressure rises. After receiving the fourth signal and then receiving the second signal, it means that the air pressure drops below the second air pressure threshold and then rises. Receiving only the second signal means that the user takes a shallow inhalation and the air pressure does not drop to the second air pressure threshold. Regardless of whether the second signal or the fourth signal is received, it is determined that the termination condition is met to avoid the situation where atomization is still in progress when the user ends use.

[0074] Furthermore, in some embodiments, the microphone is electrically connected to the MCU, and the signal sent by the microphone to the MCU is a level signal.

[0075] Specifically, in some embodiments, the MCU is disposed on a circuit board, and sends a high level signal when the microphone is in an on state, and sends a low level signal when the microphone is in an off state.

[0076] The present application also proposes an atomizer, which includes an MCU, a microphone, a power output module and an atomizer core, and can implement any of the above-mentioned atomizer control methods.

[0077] Specifically, the MCU controls the operation of the power output module according to the information fed back by the microphone, and the power output module supplies power to the atomizer core so that the atomizer core atomizes the atomization liquid to produce aerogel.

[0078] The present invention proposes an atomizer control method and an atomizer, wherein the first air pressure threshold is less than the second air pressure threshold. Therefore, atomization is turned off earlier than in the past. When the user stops inhaling during the smoking experience, the air pressure at the microphone changes more slowly than the air pressure in the airway. Therefore, atomization is turned off in advance, which can reduce the amount of aerosol in the airway and make it more difficult for condensate to be generated. The problem that condensate is easily generated because the air pressure at the microphone changes more slowly than the air pressure in the airway and the closing air pressure threshold is the same as the opening air pressure threshold is solved.

[0079] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for controlling an atomizer, characterized in that: The following steps are involved: The microphone of the atomizer generates a corresponding signal to the MCU according to the detected air pressure change, wherein the signal includes an on signal representing that the air pressure drops to a first air pressure threshold and a off signal representing that the air pressure rises to a second air pressure threshold, wherein the first air pressure threshold is greater than the second air pressure threshold; The MCU determines whether the start condition or the termination condition is met based on the received signal. If the start signal is received, the start condition is met; if the shutdown signal is received, the termination condition is met. When the start-up conditions are met, the MCU controls the power output module to start working, so that the atomizing liquid at the atomizing core is atomized; When the termination condition is met, the MCU controls the power output module to stop working, so that the atomization liquid at the atomization core stops atomizing.

2. The atomizer control method according to claim 1, characterized in that: The atomizer includes a first microphone and a second microphone, the first microphone and the second microphone each have only one judgment threshold, the judgment threshold of the first microphone is greater than the judgment threshold of the second microphone, and the microphone of the atomizer generates a corresponding signal to the MCU according to the detected air pressure change, comprising: When the first microphone detects that the air pressure drops to its judgment threshold, it turns on and sends a first signal to the MCU, and the first signal serves as the turn-on signal; When the first microphone detects that the air pressure rises to its judgment threshold, it turns off and sends a second signal to the MCU; When the second microphone detects that the air pressure drops to its judgment threshold, it turns on and sends a third signal to the MCU; When the second microphone detects that the air pressure rises to its judgment threshold, it turns off and sends a fourth signal to the MCU, and the fourth signal serves as the closing signal.

3. The atomizer control method according to claim 2, characterized in that: The step of the MCU judging whether the start condition or the termination condition is met according to the received signal comprises: When the MCU receives the first signal, it determines that the start condition is met; When the MCU receives the fourth signal instead of the third signal, it is determined that the termination condition is met.

4. The atomizer control method according to claim 3, characterized in that: The step of the MCU judging whether the start condition or the termination condition is met according to the received signal also includes: When the MCU receives only the second signal instead of the first signal, it is determined that the termination condition is met.

5. The atomizer control method according to claim 1, characterized in that: The atomizer includes a third microphone, and the third microphone is provided with different judgment thresholds, namely a first air pressure threshold and a second air pressure threshold, and the first air pressure threshold is greater than the second air pressure threshold; The step of the microphone of the atomizer generating a corresponding signal to the MCU according to the detected air pressure change includes: When the third microphone detects that the air pressure drops to a first air pressure threshold, it sends a first signal to the MCU; When the third microphone detects that the air pressure rises to the first air pressure threshold, it sends a second signal to the MCU; When the third microphone detects that the air pressure drops to a second air pressure threshold, it sends a third signal to the MCU; When the third microphone detects that the air pressure rises to the second air pressure threshold, a fourth signal is sent to the MCU.

6. The atomizer control method according to claim 5, characterized in that: The step of the MCU judging whether the start condition or the termination condition is met according to the received signal comprises: When the MCU receives the first signal, it determines that the start condition is met; When the MCU receives the second signal or the fourth signal, it determines that the termination condition is met.

7. The atomizer control method according to claim 1, characterized in that: The microphone is electrically connected to the MCU, and the signal sent by the microphone to the MCU is a level signal.

8. An atomizer, characterized in that: The atomizer comprises an MCU, a microphone, a power output module and an atomizer core, and can implement the atomizer control method as claimed in any one of claims 1 to 7.

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