Anti-dry heating assembly, liquid surplus control circuit and electronic device

Abstract

The invention provides an anti-dry heating assembly which is used for being detachably connected with a power supply control assembly, and the heating assembly comprises a liquid storage cavity; a heating element; a first heating contact and a second heating contact; the liquid remaining amount detection module comprises a storage unit which is used for storing current time information associated with the liquid remaining amount; the first timing unit is used for performing first timing on at least part of duration of the heating element in the working state; the dry burning logic control unit is respectively connected with the storage unit and the first timing unit and is also used for communicating with a power supply control assembly, and the dry burning logic control unit determines whether to output a pre-dry burning signal to the power supply control assembly or not according to the current time information and the duration of the first timing unit; the pre-dry burning signal is used for indicating that the liquid residual amount is smaller than or equal to a first liquid threshold value, so that the heating element stops working and is in a non-working state. The embodiment of the invention further provides an electronic device and a liquid surplus control circuit.

Description

Technical Field

[0001] This application relates to the field of electric heating technology, and in particular to a heating component for preventing dry burning, a liquid balance control circuit, and an electronic device. Background Technology

[0002] With the development of heating and atomization technology, electronic devices for heating and atomization have emerged. These devices use electricity to heat and atomize liquids into aerosols for users to inhale. Examples of such electronic devices include medical electronic devices and electronic cigarettes, while examples of liquids include liquid medicines and e-liquids.

[0003] An existing electronic device includes a heating component and a power supply control component, which are detachably connected. The power supply control component includes a battery, a control unit, etc. The control unit is used to control whether the battery supplies power to the heating component. The heating component includes a liquid storage chamber and a heating element. The liquid storage chamber is used to store liquid, and the heating element is used to heat and atomize the liquid. When the liquid in the liquid storage chamber is low or depleted, the user can replace the heating component and continue using the device. If the user does not replace the heating component and continues to use the electronic device, the heating element will dry-burn due to the lack of liquid replenishment, producing a burnt smell and harmful substances. Inhaling these substances will harm the user's health and also damage the electronic device.

[0004] To prevent the heating element from overheating, the following solution has been proposed: The heating component also includes a storage unit that stores information about the remaining usable time. The power supply control component also includes a timing unit. When the user uses the electronic device, the control unit retrieves the remaining usable time information from the storage unit, and the timing unit starts counting from 0. When the user stops using the device, the control unit subtracts the current timing duration from the remaining usable time information to obtain new remaining usable time information, and transmits this new remaining usable time information to the heating component to update the storage unit. When the power supply control component determines that the remaining usable time information is less than or equal to a preset duration, the control unit will prevent the battery from supplying power to the heating component, even if the user uses the electronic device, thus preventing the heating element from overheating and overheating.

[0005] The above solution can effectively solve the problem of dry burning of the heating element. However, the inventors of this application have discovered that since the heating component and the power supply control component are detachably connected, when the user uses the electronic device, the heating component and the power supply control component may become loose or have poor contact. This may cause the timing unit in the power supply control component to continue timing, while the heating element in the heating component does not actually heat and atomize the liquid. As a result, the updated remaining usable time information does not correspond to the actual remaining liquid amount. This may result in a relatively large amount of liquid remaining in the reservoir, but the control unit in the power supply control component judges that the remaining usable time information is less than the preset time. Consequently, the control unit controls the battery not to supply power to the heating component, resulting in the waste of liquid in the heating component. Additionally, the power supply control component and the heating component may not be from the same brand. Even if they are from the same brand, they may be different models. Since the timing unit is located in the power supply control component, while the time the liquid in the heating component can be used for testing may be a different timing device. The timing unit in the power supply control component and the timing device used in the test may differ, and the timing method may also differ, which may cause inaccurate timing. This could result in the control unit determining that there is no liquid left in the heating component, leading to liquid waste, or it could result in the control unit determining that there is liquid left in the heating component, leading to the problem of dry burning. Summary of the Invention

[0006] The technical problem to be solved by the embodiments of this application is to provide a heating component, a liquid balance control circuit, and an electronic device to prevent dry burning, addressing the shortcomings of the prior art. This prevents the heating component from dry burning.

[0007] To address the aforementioned technical problems, a first aspect of this application provides a heating assembly for preventing dry burning. The heating assembly is detachably connected to a power supply control assembly, and includes:

[0008] A liquid storage chamber, used to store liquids;

[0009] The heating element has a working state and a non-working state. In the working state, it is used to atomize liquid to generate aerosol.

[0010] The first heating contact and the second heating contact are used for contact-type electrical connection with the power supply control component. The first heating contact is electrically connected to one end of the heating element, and the second heating contact is electrically connected to the other end of the heating element.

[0011] The liquid remaining quantity detection module includes:

[0012] A storage unit for storing current time information associated with the remaining liquid level;

[0013] The first timing unit is used to perform a first timing of at least a portion of the duration during which the heating element is in operation;

[0014] The dry-burning logic control unit is connected to the storage unit and the first timing unit, and is also used to communicate with the power supply control component. The dry-burning logic control unit determines whether to output a pre-dry-burning signal to the power supply control component based on the current time information and the duration of the first timing. The pre-dry-burning signal is used to indicate that the remaining liquid is less than or equal to a first liquid threshold. The pre-dry-burning signal is output to the power supply control component to stop the power supply to the heating element, so that the heating element stops working and is in a non-working state.

[0015] Optionally, the dry-burning logic control unit calculates the current time information and the duration of the first timer, and compares the calculation result with a preset first duration threshold. The dry-burning logic control unit determines whether to output a pre-dry-burning signal to the power supply control component based on the comparison result, wherein the first duration threshold corresponds to the first liquid threshold.

[0016] Optionally, the storage unit or the dry-burning logic control unit stores an accumulated duration threshold. The first duration threshold shown is the accumulated duration threshold. The dry-burning logic control unit includes an accumulation calculation subunit and a first dry-burning judgment subunit. The accumulation calculation subunit is connected to the first timing unit and the storage unit. One input terminal of the first dry-burning judgment subunit is connected to the accumulation calculation subunit, and its other input terminal is connected to the accumulated duration threshold. The accumulation calculation subunit receives the current time information and the duration of the first timing unit and performs an addition calculation. The first dry-burning judgment subunit receives the calculation result from the accumulation calculation subunit and compares it with the accumulated duration threshold. When the calculation result is greater than or equal to the accumulated duration threshold, a pre-dry-burning signal is determined to be output; or...

[0017] The storage unit or the logic control unit stores the cumulative duration threshold. The first duration threshold shown is the cumulative duration threshold. The logic control unit includes a cumulative calculation subunit and a second dry burning judgment subunit. The cumulative calculation subunit is connected to the first timing unit and the storage unit. One input terminal of the second dry burning judgment subunit is connected to the cumulative calculation subunit, and the other input terminal is connected to the cumulative duration threshold. The cumulative calculation subunit receives the current time information and the duration of the first timing and performs a subtraction calculation. The second dry burning judgment subunit receives the calculation result of the cumulative calculation subunit and compares it with the cumulative duration threshold. When the calculation result is less than or equal to the cumulative duration threshold, a pre-dry burning signal is determined to be output.

[0018] Optionally, the first heating contact or the second heating contact is electrically connected to the dry-burning logic control unit. The first heating contact or the second heating contact receives intermittent power supply to keep the heating element in working condition. The intermittent power supply time includes a continuous power supply period and a continuous no power supply period. During the continuous power supply period, the heating element is powered, and during the continuous no power supply period, the heating element is not powered. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs the pre-dry-burning signal to the power supply control component through the first heating contact or the second heating contact during the continuous no power supply period.

[0019] Optionally, the first heating contact or the second heating contact is electrically connected to the dry-burning logic control unit. The first heating contact or the second heating contact is continuously powered or intermittently powered to keep the heating element in working state. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs the pre-dry-burning signal to the power supply control component through the first heating contact or the second heating contact when the heating element is not in working state.

[0020] Optionally, the heating component includes a second communication contact, which is electrically connected to the dry-burning logic control unit. The second communication contact is also used for contact-type electrical connection with the power supply control component. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs a pre-dry-burning signal to the power supply control component through the second communication contact; or...

[0021] The heating component includes a second communication unit, which is electrically connected to the dry-burning logic control unit. The second communication unit is also used to wirelessly connect with the power supply control component. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs the pre-dry-burning signal to the power supply control component through the second communication unit.

[0022] Optionally, the dry-burning logic control unit includes a time update subunit, which is connected to the storage unit and the first timing unit. When the heating element enters a non-working state, the time update subunit calculates the current time information and the duration of the first timing unit to obtain the calculation result, and outputs the calculation result to the storage unit to update the current time information.

[0023] Optionally, when the heating component and the power supply control component change from being separate to being connected, the dry-burning logic control unit obtains the current time information and the duration of the first timer, and determines whether to output a pre-dry-burning signal to the power supply control component based on the current time information and the duration of the first timer.

[0024] Optionally, the heating assembly further includes a first diode and a power supply capacitor. The liquid remaining quantity detection module includes a heating power supply terminal and a heating ground terminal. The anode of the first diode is connected to a first heating contact, which is connected to a power supply contact of the power supply control assembly. The cathode of the first diode is connected to both the heating power supply terminal and the first terminal of the power supply capacitor. The second terminal of the power supply capacitor is connected to the heating ground terminal, and the heating ground terminal is connected to the second heating contact. Alternatively,

[0025] The heating assembly includes a first diode, a second diode, a third diode, a fourth diode, and a power supply capacitor. The liquid remaining quantity detection module includes a heating power supply terminal and a heating ground terminal. The anode of the first diode is connected to a first heating contact, a first end of the heating element, and the cathode of the third diode. The cathode of the first diode is connected to the heating power supply terminal, a first end of the power supply capacitor, and the cathode of the second diode. The anode of the second diode is connected to the cathode of the fourth diode and the second heating contact. The anode of the third diode is connected to the second end of the power supply capacitor and the anode of the fourth diode. The second end of the power supply capacitor is connected to the heating ground terminal. Alternatively,

[0026] The liquid remaining quantity detection module is connected to the first heating contact and the second heating contact respectively to send a pre-dry burning signal through the first heating contact or the second heating contact.

[0027] Optionally, the liquid remaining quantity detection module further includes a heating detection unit, which is connected to a first heating contact or a second heating contact, and also connected to a dry-burning logic control unit. The heating detection unit determines whether the heating element is in working condition based on the voltage on the first heating contact or the second heating contact. If the heating detection unit determines that the heating element is in working condition, it starts outputting a working signal to the dry-burning logic control unit. If the dry-burning logic control unit determines that it will not output a pre-dry-burning signal, it triggers the first timing unit to start the first timing from 0; or...

[0028] The liquid remaining quantity detection module also includes a heating detection unit, which is connected to a first heating contact or a second heating contact. The heating detection unit is also connected to a dry-burning logic control unit. The heating detection unit determines whether the heating element is in operation based on the voltage on the first or second heating contact. If the heating detection unit determines that the heating element is in operation, it starts outputting a working signal. The dry-burning logic control unit is triggered to determine whether to output a pre-dry-burning signal based on the current time information and the duration of the first timing. The dry-burning logic control unit then triggers the first timing unit to start the first timing from 0. Alternatively...

[0029] The liquid remaining quantity detection module also includes a heating detection unit, which is connected to a first heating contact or a second heating contact. The heating detection unit is also connected to the dry burning logic control unit and the first timing unit. The heating detection unit determines whether the heating element is in working state by the voltage on the first heating contact or the second heating contact. If the heating detection unit determines that the heating element has entered working state, it starts to output a working signal. When the first timing unit receives the working signal, it starts the first timing from 0. When the dry burning logic control unit receives the working signal, it determines whether to output a pre-dry burning signal based on the current time information and the duration of the first timing.

[0030] Optionally, the first heating contact or the second heating contact is continuously powered to keep the heating element in working condition. During the continuous power supply time, the heating detection unit continuously outputs a working signal, and the first timing unit performs a first timer for the continuous power supply time. When the first heating contact or the second heating contact is not powered, the heating detection unit outputs a non-working signal, and the first timing unit stops the first timer; or...

[0031] The first or second heating contact is intermittently powered to keep the heating element operational. During the intermittent power supply period, the heating detection unit continuously outputs a working signal. The intermittent power supply period includes a continuous power supply period and a continuous no-power supply period. The heating detection unit includes a second timing unit connected to the first or second heating contact. The second timing unit is used to perform a second timing for the continuous no-power supply period. When the first timing unit starts the first timing, if the duration of the second timing is greater than or equal to a preset second duration threshold, the heating detection unit outputs a no-operation signal, and the first timing unit stops the first timing; or...

[0032] The first heating contact or the second heating contact is intermittently powered to keep the heating element in working condition. The intermittent power supply time includes a continuous power supply period and a continuous no power supply period. During the intermittent power supply period, the first timing unit starts a first timer for the continuous power supply period. During the continuous no power supply period, the first timing unit pauses the first timer.

[0033] A second aspect of this application provides an electronic device, including:

[0034] The heating components mentioned above;

[0035] A power supply control component for detachable connection with the heating component, the power supply control component comprising:

[0036] power supply;

[0037] The system control module is used to connect to the positive and negative terminals of the power supply;

[0038] The system includes a power switch, a power supply contact, and a power ground contact. The control terminal of the power switch is used to connect to a system control module. Its first terminal is connected to the positive terminal of the power supply, and its second terminal is connected to the power supply contact. The power ground contact is connected to the negative terminal of the power supply. The power supply contact is connected to one of a first heating contact and a second heating contact, and the power ground contact is connected to the other of the first and second heating contacts. Alternatively, the control terminal of the power switch is used to connect to the system control module. Its first terminal is connected to the negative terminal of the power supply, and its second terminal is connected to the power ground contact. The power supply contact is connected to the positive terminal of the power supply, and the power supply contact is connected to one of the first and second heating contacts, and the power ground contact is connected to the other of the first and second heating contacts.

[0039] Specifically, when the power supply control component is connected to the heating component and the system control module controls the power switch to be turned on, the power supply provides power to the heating element; when the power supply control component is connected to the heating component and the system control module controls the power switch to be turned off, the power supply stops providing power to the heating element.

[0040] Specifically, when the system control module receives the pre-dry-burn signal output by the heating component, its control power switch is turned off, thereby stopping the power supply control component from supplying power to the heating element.

[0041] Optionally, when the system control module receives the pre-dry-burn signal output by the heating component, its control power switch is locked and disconnected.

[0042] The system control module also includes a separation monitoring unit, which is connected to the second terminal of the power switch. The separation monitoring unit is used to monitor whether the heating component is connected to the power supply control component. When the system control module receives the pre-dry burning signal and the separation monitoring unit detects that the heating component is separated from the power supply control component, the system control module releases the lock on the power switch to disconnect.

[0043] Optionally, the system control module includes an airflow end, an airflow detection unit, and a switch control unit. The power supply control component includes an airflow sensor, wherein one end of the airflow sensor is connected to the airflow end and the other end is connected to the negative terminal of the power supply. The airflow detection unit is connected to both the airflow end and the switch control unit. The switch control unit is connected to the control terminal of the power switch. The airflow detection unit also receives an intermediate signal corresponding to the pre-dry-burning signal. When the system control module receives the pre-dry-burning signal, the airflow detection unit stops working, and the switch control unit controls the power switch to open and shut off. Alternatively...

[0044] The system control module includes an airflow end, an airflow detection unit, a logic gate unit, and a switch control unit. The power supply control component includes an airflow sensor, one end of which is connected to the airflow end and the other end to the negative terminal of the power supply. The airflow detection unit is connected to both the airflow end and the logic gate unit. The logic gate unit also receives an intermediate signal corresponding to the pre-dry-burning signal. The output terminal of the logic gate unit is connected to the switch control unit, which is connected to the control terminal of the power switch. When the logic gate unit receives the intermediate signal corresponding to the pre-dry-burning signal, it outputs a corresponding signal to the switch control unit, which then controls the power switch to open or close.

[0045] The system control module includes an airflow end, an airflow detection unit, and a switch control unit. The power supply control component includes an airflow sensor, wherein one end of the airflow sensor is connected to the airflow end and the other end is connected to the negative terminal of the power supply. The airflow detection unit is connected to both the airflow end and the switch control unit. The switch control unit is connected to the control terminal of the power switch. The switch control unit also receives an intermediate signal corresponding to the pre-dry burning signal. When the system control module receives the pre-dry burning signal, the switch control unit controls the power switch to disconnect and cut off.

[0046] Optionally, the system control module further includes a dry burning identification unit, which is connected to the second terminal of the power switch. When the dry burning identification unit identifies a pre-dry burning signal, it outputs an intermediate signal corresponding to the pre-dry burning signal.

[0047] Optionally, when the system control module receives the pre-dry-burn signal output by the heating component, it controls the power switch to lock and disconnect; the system control module includes a latching unit, which, upon receiving the pre-dry-burn signal, locks the output of an intermediate signal corresponding to the pre-dry-burn signal to control the power switch to lock and disconnect; or,

[0048] The system control module and the power switch are integrated onto the same chip; or...

[0049] The system control module is integrated onto one chip, and the power switch is integrated onto another chip; or...

[0050] The liquid remaining quantity detection module is integrated onto the same chip.

[0051] Optionally, the system control module outputs a square wave signal to the control terminal of the power switch via PWM or PFM to intermittently power the first heating contact or the second heating contact, the intermittent power supply including a period of continuous no power supply; the system control module is connected to the power supply contact or the power ground contact, and when the dry-burning logic control unit outputs a pre-dry-burning signal through the first heating contact or the second heating contact during the period of continuous no power supply, the system control module receives the pre-dry-burning signal through the corresponding power supply contact or the power ground contact; or,

[0052] The system control module is connected to the power supply contact or the power ground contact. When the dry-burning logic control unit outputs a pre-dry-burning signal through the first heating contact or the second heating contact when the heating element is not in operation, the system control module receives the pre-dry-burning signal through the corresponding power supply contact or the power ground contact; or...

[0053] The power supply control component includes a first communication contact connected to the system control module. The first communication contact is also used to connect to a second communication contact of the heating component. When the dry-burning logic control unit outputs a pre-dry-burning signal through the second communication contact, the system control module receives the pre-dry-burning signal through the first communication contact; or...

[0054] The system control module includes a first communication unit, which is used to wirelessly connect with a second communication unit of the heating component. When the dry-burning logic control unit outputs a pre-dry-burning signal through the second communication unit, the first communication unit receives the pre-dry-burning signal.

[0055] A third aspect of this application provides a liquid remaining amount control circuit, applied to a heating assembly including a heating element, the liquid remaining amount control circuit comprising:

[0056] A storage unit for storing current time information associated with the remaining liquid level;

[0057] The first timing unit is used to perform a first timing of at least a portion of the duration during which the heating element is in operation;

[0058] The dry-burning logic control unit is connected to the storage unit and the first timing unit, and is also used to communicate with the power supply control component. The dry-burning logic control unit determines whether to output a pre-dry-burning signal to the power supply control component based on the current time information and the duration of the first timing. The pre-dry-burning signal is used to indicate that the remaining liquid is less than or equal to a first liquid threshold. The pre-dry-burning signal is output to the power supply control component to stop the power supply to the heating element, so that the heating element stops working and is in a non-working state.

[0059] In this embodiment, since the first timing unit, storage unit, and dry-burning logic control unit are all located within the heating assembly, if the heating assembly and power supply control assembly become loose or have poor contact, causing the heating element to malfunction, the first timing unit will not keep time. Therefore, the duration of the first timing unit's timing accurately reflects the duration of the heating element's operation. The current time information is then processed with the duration of the first timing and the current time information in the storage unit is updated. This ensures that the current time information accurately reflects the remaining liquid in the reservoir, preventing liquid waste and saving user costs. Furthermore, regardless of whether the user replaces the heating assembly, since the first timing unit and reservoir are both located within the heating assembly, and the entire heating assembly is supplied by the same manufacturer, the consistency between the first timing unit in the heating assembly and the timing device for testing the usable liquid duration in the heating assembly is good. This results in good timing matching and a low probability of timing mismatch. Furthermore, even if the heating component and the power supply control component cannot communicate due to looseness or poor contact, since the first timing unit, the dry-burning logic control unit, and the storage unit are all located within the heating component, the dry-burning logic control unit can calculate the current time information and the duration of the first timing to ensure successful updating of the current time information in the storage unit. This avoids issues such as failure to update due to communication problems or mismatches in subsequent updates (updating to the newly replaced heating component), thus ensuring good consistency between the current time information and the remaining liquid level in the storage chamber. Additionally, in this embodiment, the dry-burning logic control unit assesses whether the remaining liquid level is less than or equal to a first liquid threshold based on the current time information and the duration of the first timing, which is more accurate and reliable than methods such as counting or other methods of assessing whether the remaining liquid level is less than or equal to the first liquid threshold. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0061] Figure 1 This is a schematic diagram of the circuit module of the electronic device according to the first embodiment of this application;

[0062] Figure 2 This is a schematic diagram of the circuit module of an electronic device according to another embodiment of this application;

[0063] Figure 3 This is a schematic diagram of the circuit module of the heating component according to the first embodiment of this application;

[0064] Figure 4a This is a timing waveform diagram of the power switch, the first heating terminal, and the first timing unit according to the first embodiment of this application;

[0065] Figure 4b This is another timing waveform diagram of the power switch, the first heating terminal, and the first timing unit in the first embodiment of this application;

[0066] Figure 5 This is a schematic diagram of the circuit module of a heating assembly according to another embodiment of this application;

[0067] Figure 6 This is a schematic diagram of a circuit module of the liquid remaining quantity detection module according to the first embodiment of this application;

[0068] Figure 7 This is a schematic diagram of another circuit module of the liquid remaining quantity detection module in the first embodiment of this application;

[0069] Figure 8a This is a schematic diagram of a partial circuit module of a power supply control component according to the first embodiment of this application;

[0070] Figure 8b This is a schematic diagram of a partial circuit module of a power supply control component according to another embodiment of this application;

[0071] Figure 8c This is a partial circuit module schematic diagram of a power supply control component according to another embodiment of this application;

[0072] Figure 9 This is a partial circuit module schematic diagram of another power supply control component according to the first embodiment of this application;

[0073] Figure 10 This is a circuit module schematic diagram of the separation monitoring unit and the dry burning identification unit in the first embodiment of this application;

[0074] Figure 11 This is a circuit module schematic diagram of the liquid remaining quantity detection module according to the second embodiment of this application;

[0075] Figure 12 This is a schematic diagram of the circuit module of the electronic device according to the third embodiment of this application;

[0076] Figure 13 This is a schematic diagram of the circuit module of an electronic device according to another embodiment of this application;

[0077] Figure 14 This is a schematic diagram of the circuit module of the electronic device according to the fourth embodiment of this application;

[0078] Figure 15 This is a schematic diagram of the circuit module of an electronic device according to another embodiment of this application. Detailed Implementation

[0079] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0080] The terms "comprising" and "having," and any variations thereof, appearing in this application specification, claims, and drawings, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. Furthermore, the terms "first," "second," and "third," etc., are used to distinguish different objects and are not used to describe a specific order. Connections in this application include direct connections and indirect connections. An indirect connection refers to the presence of other electronic components, pins, etc., between the two connected components. The term "XX terminal" mentioned in this application may or may not be an actual terminal, such as simply one end of a component or one end of a wire. The term "and / or includes three cases" mentioned in this application, such as A and / or B, includes A, B, and A and B.

[0081] First Embodiment

[0082] Please see Figure 1 This application provides an electronic device, such as a medical electronic atomizer or electronic cigarette, which requires heating liquids. The electronic device uses electricity to heat and atomize the liquids into aerosols for users to inhale.

[0083] In this embodiment, the electronic device includes a heating component 200 and a power supply control component 100. The heating component 200 and the power supply control component 100 are detachably connected. For example, the heating component 200 and the power supply control component 100 can be plugged in, magnetically connected, or screwed together. The heating component 200 can also be separated from the power supply control component 100 so that the two can be separated. At this time, a new heating component 200 can be replaced as needed. The power supply control component 100 can be shared, which can save costs.

[0084] In this embodiment, the heating assembly 200 includes a liquid storage chamber (not shown in the figure) and a heating element 210. The liquid storage chamber stores liquid, such as liquid medicine, e-liquid, etc. Liquid medicine is such as liquid Western medicine, liquid traditional Chinese medicine, etc. The heating element 210 is used to atomize the liquid to generate an aerosol for the user to inhale. The heating element 210 is, for example, a heating wire, a heating wire, a ceramic core containing a heating wire or a heating wire and a ceramic base, a cotton core containing a heating wire or a heating wire and fiber cotton, or other conventional heating elements. The heating element 210 is powered and heated to atomize the liquid introduced from the liquid storage chamber, thereby generating an aerosol. When the liquid in the storage chamber is atomized and the remaining amount is small or non-existent, the user can remove the heating component 200 from the power supply control component 100 and replace it with a new heating component 200. This way, the entire electronic device does not need to be discarded. After replacing it with a new heating component 200, it can be connected to the power supply control component 100, and the electronic device can continue to be used. This allows the power supply control component 100 to be shared, which helps to reduce the cost of the electronic device.

[0085] In this embodiment, the power supply control component 100 includes a power supply 110, an atomizing switch, a system control module 130, a power switch M1, a power supply contact VCD1, and a power ground contact GCD1. The power supply 110 can be a battery, AC-DC converter, DC-DC converter, etc., preferably a rechargeable battery. The system control module 130 includes a system power supply terminal VDD1, a system ground terminal GND1, an airflow terminal SW, and an atomizing terminal AT. The system power supply terminal VDD1 is electrically connected to the positive terminal of the power supply 110, and the system ground terminal GND1 is electrically connected to the negative terminal of the power supply 110. The atomizing switch is, for example, an airflow sensor 120, a push-button switch, etc. In this embodiment, the airflow sensor 120 is used as an example. The airflow terminal SW is connected to one end of the airflow sensor 120, and the other end of the airflow sensor 120 is connected to the system ground terminal GND1. The airflow sensor 120 is used to detect the direction and magnitude of the airflow. The airflow sensor 120 is, for example, a capacitive microphone, a barometric pressure sensor, a MEMS sensor, etc. The barometric pressure sensor is, for example, a capacitive barometric pressure sensor, a piezoresistive barometric pressure sensor, a piezoelectric barometric pressure sensor, etc. The system control module 130, in conjunction with the airflow sensor 120, determines whether the electronic device is being drawn in and is in a drawing state, or whether the electronic device is not being drawn in and is in a non-drawing state. The specific determination method is conventional technology in this field and will not be elaborated here. The control terminal of the power switch M1 is connected to the system control module 130. The first terminal of the power switch M1 is connected to the system power supply terminal VDD1 (power switch M1 is on top). The second terminal of the power switch M1 is connected to the atomizing terminal AT. The atomizing terminal AT is connected to the power supply contact VCD1. The power supply contact VCD1 is used to connect to the heating element 210. The power ground contact GCD1 is used to connect to the negative terminal of the power supply 110. The power ground contact GCD1 is used to connect to the heating element 210. That is, the power supply control component 100 supplies power to the heating element 210 through the power supply contact VCD1 and the power ground contact GCD1. When the user uses the electronic device, such as during suction, the system control module 130 determines that the electronic device is in suction mode via the airflow sensor 120. The system control module 130 then controls the power switch M1 to be either constantly or intermittently on. The intermittent on-mode control of the power switch M1 includes, but is not limited to, the following two methods, thereby supplying power to the heating element 210 to atomize the liquid. In this case, the heating element 210 is in a working state. When the user does not use the electronic device, the system control module 130 determines that the electronic device is not in suction mode via the airflow sensor 120. The system control module 130 then keeps the power switch M1 off, and the heating element 210 is not working. In this embodiment, the power switch M1 is, for example, a PMOS transistor, an NMOS transistor, or a FET transistor. Figure 1 The PMOS transistor will be used as an example for explanation.

[0086] 1. The system control module 130 outputs a square wave signal via PWM (Pulse Width Modulation) (see reference). Figure 4b The power switch M1 is intermittently turned on, and the heating element 210 is in working state. In PWM mode, the frequency (period) remains unchanged. The turn-on time (corresponding to the low level time of the square wave signal) and turn-off time (corresponding to the high level time of the square wave signal) of the power switch M1 are adjustable. The turn-on time and turn-off time constitute a signal cycle. In this mode, the power switch M1 is turned on during the turn-on time of one signal cycle and turned off during the turn-off time.

[0087] 2. The system control module 130 can also output a square wave signal via PFM (Pulse Frequency Modulation) (see reference). Figure 4b The power switch M1 is intermittently turned on to control the heating element 210 to be in working condition. In PFM mode, the frequency (period) can be adjusted. The on-time (corresponding to the low level time of the square wave signal) or off-time (corresponding to the high level time of the square wave signal) of the power switch M1 remains unchanged. The on-time and off-time constitute a signal cycle. In this mode, the power switch M1 is turned on during the on-time of one signal cycle and turned off during the off-time.

[0088] Additionally, please refer to other embodiments of this application. Figure 2 The control terminal of power switch M1 is connected to system control module 130. The first terminal of power switch M1 is connected to system ground terminal GND1 (power switch M1 is located at the bottom). The second terminal of power switch M1 is connected to atomizing terminal AT. Atomizing terminal AT is connected to power ground contact GCD1. Power ground contact GCD1 is used to connect to heating element 210. Power supply contact VCD1 is used to connect to the positive terminal of power supply 110. Power supply contact VCD1 is used to connect to heating element 210. That is, power supply control component 100 supplies power to heating element 210 through power supply contact VCD1 and power ground contact GCD1. When the system control module 130 determines that the electronic device is in a suction state via the airflow sensor 120, the system control module 130 controls the power switch M1 to be constantly or intermittently turned on, thereby supplying power to the heating element 210 to atomize the liquid. At this time, the heating element 210 is in a working state. When the system control module 130 determines that the electronic device is in a non-suction state via the airflow sensor 120, the system control module 130 controls the power switch M1 to remain off. At this time, the heating element 210 is not working and is in a non-operating state. Here, the power switch M1 can be, for example, an NMOS transistor, a PMOS transistor, or a FET transistor. Figure 2The following explanation uses an NMOS transistor as an example. Here, the system control module 130 controls the power switch M1 to conduct intermittently using PWM or PFM methods. For example, the on-time of the power switch M1 corresponds to the high-level time of the square wave signal, and the off-time corresponds to the low-level time of the square wave signal.

[0089] Please continue reading Figure 1 In this embodiment, the system control module 130 includes an airflow detection unit 131 and a switch control unit 132. The input terminal of the airflow detection unit 131 is connected to the airflow terminal SW. The airflow detection unit 131 is used to detect whether the electronic device is in a suction state or a non-suction state. The output terminal of the airflow detection unit 131 is connected to the switch control unit 132, which is connected to the control terminal of the power switch M1. When the airflow detection unit 131 detects that the electronic device is in a suction state, it outputs a suction signal to the switch control unit 132. The switch control unit 132 controls the power switch M1 to be normally or intermittently on, and the heating element 210 is in a working state. When the airflow detection unit 131 detects that the electronic device is in a non-suction state, it outputs a non-suction signal to the switch control unit 132. The switch control unit 132 controls the power switch M1 to be turned off, and the heating element 210 is in a non-working state. In this embodiment, the non-suction state corresponds to the state where the electronic device is not used and the blowing state, etc.

[0090] To power the heating components, please continue reading. Figure 1 In this embodiment, the power supply contact VCD1 is connected to the second terminal of the power switch M1 via the atomizing end AT, and the power ground contact GCD1 is connected to the negative terminal of the power supply 110. The heating assembly 200 includes a first heating contact VCD2 and a second heating contact GCD2, wherein the first heating contact VCD2 is connected to the first terminal of the heating element 210, and the second heating contact GCD2 is connected to the second terminal of the heating element 210. When the heating assembly 200 is connected to the power supply control assembly 100, the first heating contact VCD2 is electrically connected to the power supply contact VCD1, and the second heating contact GCD2 is electrically connected to the power ground contact GCD1. When the power switch M1 is turned on, the power supply 110 supplies power to the heating element 210. When the heating assembly 200 is disconnected from the power supply control assembly 100, the first heating contact VCD2 is disconnected from the power supply contact VCD1, and the second heating contact GCD2 is disconnected from the power ground contact GCD1. For other embodiments of this application, please refer to [link to other embodiments]. Figure 2The power supply contact VCD1 is connected to the positive terminal of the power supply 110, the power ground contact GCD1 is connected to the second terminal of the power switch M1 via the atomizing terminal AT, the first heating contact VCD2 is connected to the first terminal of the heating element 210, and the second heating contact GCD2 is connected to the second terminal of the heating element 210. When the heating assembly 200 is connected to the power supply control assembly 100, the first heating contact VCD2 is electrically connected to the power supply contact VCD1, and the second heating contact GCD2 is electrically connected to the power ground contact GCD1.

[0091] Please refer to the above. Figure 1 and Figure 3 In this embodiment, the heating component 200 further includes a liquid remaining quantity detection module 230. The liquid remaining quantity detection module 230 is used to determine whether the liquid remaining quantity in the liquid storage chamber is less than or equal to a first liquid threshold. If it is less than or equal to the first liquid threshold, a pre-dry burning signal is sent to the power supply control component 100 so that the power supply control component 100 stops supplying power to the heating element 210, so that the heating element 210 stops working and is in a non-working state to prevent dry burning.

[0092] Specifically, the liquid remaining quantity detection module 230 includes a storage unit 231, a first timing unit 233, and a dry-burning logic control unit 232. The storage unit 231 stores current time information associated with the remaining liquid quantity; that is, the current time information can be used to characterize the remaining liquid quantity. In this embodiment, the initial value of the current time information is, for example, 0 seconds. As the liquid is atomized, the current time information is updated to gradually increase, at which point the current time information is, for example, 51.2 seconds. The first timing unit 233 performs a first timing of at least a portion of the operating time of the heating element 210. In this embodiment, the first timing is performed for the entire operating time of the heating element 210. The operating time of the heating element 210 corresponds to the duration of the suction state. When the heating element 210 finishes operating, the first timing is reset to zero. In this embodiment, the dry-burning logic control unit 232 is connected to the storage unit 231 and the first timing unit 233 respectively. The dry-burning logic control unit 232 determines in real time whether to output a pre-dry-burning signal to the power supply control component 100 based on the current time information and the duration of the first timing. The pre-dry-burning signal is used to indicate that the remaining liquid is less than or equal to the first liquid threshold. That is, when the pre-dry-burning signal is output, it means that the remaining liquid is less than or equal to the preset first liquid threshold. When the pre-dry-burning signal is not output, it means that the remaining liquid is greater than the first liquid threshold. After the dry-burning logic control unit 232 outputs the pre-dry-burning signal to the power supply control component 100, the power supply control component 100 stops supplying power to the heating element 210. Specifically, the pre-dry-burning signal is output to the system control module 130. The system control module 130 controls the power switch M1 to remain open, so that the power supply control component 100 does not supply power to the heating element 210. The heating element 210 stops working and enters a non-working state, so that the heating element 210 will not heat up again, which can prevent the heating element 210 from dry-burning.

[0093] In this embodiment, since the first timing unit 233, the storage unit 231, and the dry-burning logic control unit 232 are all located within the heating assembly 200, when the heating assembly 200 and the power supply control assembly 100 become loose or have poor contact, causing the heating element 210 to stop working (at this time, the power switch M1 is still normally or intermittently conducting), the first timing unit 233 will not keep time. This avoids the situation in the background technology where the heating element 210 is not working, but the first timing unit 233 is still keeping time. Therefore, the duration of the first timing by the first timing unit 233 can accurately reflect the duration of the heating element 210's operation. The current time information and the duration of the first timing are then processed and the current time information in the storage unit 231 is updated. Thus, the current time information can accurately reflect the remaining amount of liquid in the liquid storage chamber. This avoids the situation in the background technology where the remaining amount of liquid is judged to be less than or equal to the first liquid threshold, but the actual amount of liquid remaining in the liquid storage chamber is still relatively large, thereby preventing liquid waste and saving costs for the user. Furthermore, regardless of whether the user replaces the heating component 200, since the first timing unit 233 and the liquid storage chamber are both located within the heating component 200, and the entire heating component 200 is supplied by the same manufacturer, the first timing unit 233 in the heating component 200 is consistent with the timing device that tests the usable liquid duration in the heating component 200. This results in good timing matching and a low probability of timing mismatch. Moreover, even if the heating component 200 and the power supply control component 100 cannot communicate due to looseness or poor contact, since the first timing unit 233, the dry-burning logic control unit 232, and the storage unit 231 are all located within the heating component 200, the dry-burning logic control unit 232 can calculate the current time information and the duration of the first timing, ensuring successful updating of the current time information in the storage unit 231. This avoids issues such as failure to update due to communication problems or mismatch in the next update (updating to the newly replaced heating component), thus ensuring good consistency between the current time information and the remaining liquid amount in the liquid storage chamber.

[0094] In this embodiment, the dry-burning logic control unit 232 calculates the current time information and the duration of the first timer, and compares the calculation result with a preset first duration threshold. The first duration threshold corresponds to a first liquid threshold and can be either an accumulated duration threshold or a subtracted duration threshold mentioned later, or other duration thresholds. The dry-burning logic control unit 232 determines whether to output a pre-dry-burning signal to the power supply control component 100 based on the comparison result. When the heating element 210 is in operation, the dry-burning logic control unit 232 calculates the current time information and the duration of the first timer in real time, and compares the calculation result with the preset first duration threshold in real time to determine whether to output a pre-dry-burning signal. This process helps to prevent dry-burning in a timely manner. In other embodiments of this application, when the heating component 200 and the power supply control component 100 change from being separated to being connected, the power supply control component 100 will supply power to the heating component 200 for a short time. At this time, the dry-burning logic control unit 232 obtains the current time information and the duration of the first timer (at this time, the duration of the first timer is 0), and determines whether to output a pre-dry-burning signal to the power supply control component 100 based on the current time information and the duration of the first timer. After the power supply ends, the dry-burning logic control unit 232 no longer determines whether to output a pre-dry-burning signal to the power supply control component 100 based on the current time information and the duration of the first timer. This processing is beneficial for users to promptly detect whether there is a problem with the heating component 200. In other embodiments of this application, as long as the heating component 200 is powered and dry-burning, the logic control unit 232 will determine whether to output a pre-dry-burning signal to the power supply control component 100 according to the current time information and the duration of the first timer at a preset frequency.

[0095] In order for the first timing unit 233 to keep track of the working time of the heating element 210 in a timely manner, please continue to refer to Figure 3In this embodiment, the liquid remaining quantity detection module 230 further includes a heating detection unit 234. The heating detection unit 234 is electrically connected to the first heating contact VCD2 and is connected to the dry burning logic control unit 232. When the heating detection unit 234 detects that the heating element 210 has started working (when it is in the working state), the heating detection unit 234 starts to output a working signal to the dry burning logic control unit 232. The dry burning logic control unit 232 obtains the current time information and the duration of the first timer in the storage unit 231, performs calculations on the current time information and the duration of the first timer (at this time, the duration of the first timer is 0), and compares the calculation result with the first duration threshold to determine whether the liquid remaining quantity is less than or equal to the first liquid threshold. If the comparison result determines that the liquid remaining quantity is greater than the preset first liquid threshold, the dry burning logic control unit 232 triggers the first timer unit 233 to start the first timer from 0. This setting can send the pre-dry burning signal to the power supply control component 100 in a relatively timely manner. In other embodiments of this application, the heating detection unit 234 is connected to the dry-burning logic control unit 232. When the heating detection unit 234 starts outputting a working signal to the dry-burning logic control unit 232, the dry-burning logic control unit 232 calculates the current time information with the duration of the first timing (at this time, the duration of the first timing is 0) and compares the calculation result with the duration threshold. At the same time, the dry-burning logic control unit 232 triggers the first timing unit 233 to start the first timing from 0. This setting can make the timing very accurate without waiting for the comparison result. In other embodiments of this application, both the dry-burning logic control unit 232 and the first timing unit 233 are connected to the heating detection unit 234. When the first timing unit 233 receives the working signal, it triggers the first timing to start from 0. At the same time, the dry-burning logic control unit 232 receives the working signal, calculates the current time information with the duration of the first timing, and compares the calculation result with the first duration threshold. During the operation of the heating element 210, the dry-burning logic control unit 232 calculates the current time information and the duration of the first timer (which is not zero at this time), and compares the calculation result with a preset first duration threshold in real time to determine whether the remaining liquid is less than or equal to the first liquid threshold. The first liquid threshold is, for example, 0ml, 0.1ml, 0.2ml, 0.3ml, etc. Generally, the first liquid threshold does not exceed 10% of the liquid stored in the reservoir of the new heating component 200, preferably not exceeding 5%, 3%, 1%, etc. When the heating element 210 stops working, the heating detection unit 234 changes from outputting a working signal to outputting a non-working signal, the first timer unit 233 stops timing, the dry-burning logic control unit 232 stops comparing, and then resets the first duration to zero.

[0096] Please refer to the above. Figure 1 and Figure 3 In this embodiment, the heating detection unit 234 is connected to the first heating contact VCD2, and the first heating contact VCD2 is electrically connected to the power supply contact VCD1. When the power switch M1 is turned on, the heating element 210 starts working and enters the working state. The first heating contact VCD2 changes from a low level to a high level, so the heating detection unit 234 can detect that the first heating contact VCD2 changes from a low level to a high level or is at a high level. The heating detection unit 234 determines that the heating element 210 is in the working state, outputs a working signal, and the first timing unit 233 starts the first timing. In this embodiment, when the user uses the electronic device, the system control unit drives the power switch M1 to turn on in three ways: 1. Drive the power switch M1 to be normally turned on, please refer to Figure 4a When power switch M1 is on, it indicates that the user is using the electronic device. The first heating contact VCD2 is continuously powered, the heating element 210 operates, and the first heating contact VCD2 changes from low to high level. The heating detection unit 234 can detect the change in the first heating contact VCD2 from low to high level or remain high. The heating detection unit 234 outputs a working signal and continues to output a working signal thereafter. The first timing unit 233 starts the first timing from 0. When power switch M1 is off, it indicates that the user is no longer using the electronic device. The first heating contact VCD2 is de-powered, the heating element 210 stops working, and the first heating contact VCD2 changes from high to low level. When the heating detection unit 234 detects that the first heating contact VCD2 changes from a high level to a low level or is at a low level, the heating detection unit 234 outputs a non-operating signal, the first timing unit 233 stops the first timing, and then performs a reset. Here, the first timing unit 233 performs the first timing for the entire continuous power supply time; 2. The power switch M1 is driven intermittently to conduct via PWM, and the first heating contact VCD2 is intermittently powered. During the intermittent power supply time, the heating detection unit 234 continuously outputs an operating signal and the heating element 210 is in an operating state. The intermittent power supply time includes the continuous power supply period and the continuous non-power supply period. Please refer to [link to relevant documentation]. Figure 4bWhen the heating element 210 is in operation, the first heating contact VCD2 will also be at a low level for a period of time (the period of continuous no power supply). In order to distinguish whether the low level is in operation or in non-operation, the heating detection unit 234 includes a second timing unit (not shown in the figure). The second timing unit is connected to the first heating contact VCD2. The second timing unit is used to perform a second timing for the duration of the low level (the period of continuous no power supply), and to reset the second timing when the first heating contact VCD2 becomes high (entering the period of continuous power supply), or to reset the second timing when the second timing is greater than or equal to a preset second duration threshold. The second timing unit is triggered when the first heating contact VCD2 changes from high level to low level. The first timing unit 233 starts the second timing. If the first heating contact VCD2 changes from low to high and the second timing has not reached the second duration threshold (one cycle of the PWM mode ends), it indicates that the heating element 210 is still working, and the second timing is reset to zero. The first timing unit 233 continues the first timing. When the second timing is greater than or equal to the second duration threshold, it indicates that the heating element 210 is not working. The heating detection unit 234 outputs a non-working signal, and the second timing is reset to zero. The first timing unit 233 stops timing and then resets to zero. The second duration threshold is greater than or equal to the duration corresponding to one cycle of the PWM mode. 3. The power switch M1 is intermittently turned on via PFM mode. The specific situation is the same as... Figure 4b The situation is similar; please also refer to [link / reference]. Figure 4bSimilarly, the first heating contact VCD2 is intermittently powered. During the intermittent power supply period, the heating detection unit 234 continuously outputs a working signal. The intermittent power supply period includes a continuous power supply period and a continuous no-power supply period. When the heating element 210 is working, the first heating contact VCD2 will also be at a low level for a period of time (the continuous no-power supply period). To distinguish between a low level in the working state and a low level in the non-working state, the heating detection unit 234 includes a second timing unit. The second timing unit is connected to the first heating contact VCD2. The second timing unit is used to perform a second timing for the duration of the low level (the continuous no-power supply period), and resets the second timing to zero when the first heating contact VCD2 becomes high, or resets the second timing. When the time is greater than or equal to the second duration threshold, a reset is performed. When the first heating contact VCD2 changes from high to low, the second timing unit is triggered to start the second timing. Subsequently, if the first heating contact VCD2 changes from low to high and the second timing has not reached the second duration threshold (one cycle of PFM mode ends), it indicates that the heating element 210 is still in working state, and the second timing is reset. When the second timing is greater than or equal to the second duration threshold, it indicates that the heating element 210 is not in working state, the heating detection unit 234 outputs a non-working signal, and the second timing is reset. The first timing unit 233 stops timing and is then reset. The second duration threshold is greater than or equal to the duration corresponding to the longest cycle of PFM mode. In addition, in the second and third modes, the dry burning logic control unit 232 can also obtain the actual duration of the first timing by subtracting the last second timing duration from the first timing duration, and then reset the first timing unit 233. Of course, it is also possible not to subtract the last second timing duration.

[0097] Additionally, please refer to other embodiments of this application. Figure 2 and Figure 5At this time, the heating detection unit 234 is connected to the second heating contact GCD2, which is electrically connected to the power ground contact GCD1. When the power switch M1 is turned on, the second heating contact GCD2 is powered, and the heating element 210 starts to work and is in working condition. The second heating contact GCD2 changes from high level to low level, so the heating detection unit 234 can detect that the first heating contact VCD2 changes from high level to low level or is low level. The heating detection unit 234 determines that the heating element 210 is in working condition and outputs a working signal. In this embodiment, when the user uses the electronic device, the system control unit drives the power switch M1 to turn on in three ways, and the specific situations are similar to those above. Those skilled in the art can understand how the heating detection unit 234 judges the state of the heating element 210 through conventional logical reasoning (high and low levels are the reverse of the previous situations), which will not be elaborated here.

[0098] In other embodiments of this application, the heating detection unit 234 is connected to both the first heating contact VCD2 and the second heating contact GCD2. When the heating detection unit 234 detects that either the first heating contact VCD2 or the second heating contact GCD2 matches the foregoing description, the heating detection unit 234 outputs a working signal or a non-working signal. Please refer to the foregoing description for details.

[0099] In the above embodiments, the first timing unit 233 times the working time of the entire heating element 210, that is, it performs the first timing of the entire heating state. However, this application is not limited to this. In other embodiments of this application, the first timing unit 233 may also time only the actual working time of the heating element 210. This actual working time corresponds to the heating time of the heating element 210, that is, it only times the conduction time of the power switch M1. The following describes two cases. 1. When the power switch M1 is normally on, the heating element 210 is continuously powered. When the power switch M1 is on, it indicates that the user is using the electronic device, the heating element 210 starts working, the heating detection unit 234 outputs a working signal, and the first timing unit 233 starts the first timing. When the power switch M1 is off, it indicates that the user is no longer using the electronic device, the heating element 210 stops working, the heating detection unit 234 outputs a non-working signal, and the first timing unit 233 stops timing. In this case, there is no difference between the two timing methods. 2. When the power switch M1 is driven intermittently via PWM, PFM, etc., the heating element 210 is intermittently powered. The intermittent power supply time includes a continuous power supply period and a continuous no-power supply period. In this case, when the power switch M1 is in the on-time (continuous power supply period), the first timing... Unit 233 performs the first timing. When the power switch M1 is in the off-time (the period of continuous no power supply), the first timing unit 233 pauses timing (for example, it can be controlled by the heating detection unit 234 or other units of the liquid remaining detection module 230 to pause timing). When the power switch M1 is in the on-time again (the period of continuous power supply), the first timing unit 233 resumes timing. When the power switch M1 is in the off-time (the period of continuous no power supply), the first timing unit 233 pauses timing again, and so on. In this case, the duration of the first timing is less than the duration of the heating element 210 in the working state. When the heating element 210 stops working and enters the non-working state (how to determine entering the non-working state can be referred to the previous description), the first timing unit 233 stops timing and can be reset to zero. As for how the first timing unit 233 ultimately performs timing, it depends on the timing method during the test. The timing method of the first timing unit 233 must be consistent with the timing method during the test.

[0100] In this embodiment, please refer to Figure 6The dry-burning logic control unit 232 includes a time update subunit 2321, which is connected to the storage unit 231 and the first timing unit 233. When the heating element 210 stops working, the time update subunit 2321 calculates the current time information with the duration of the first timing unit and outputs the calculation result to the storage unit 231 to update the current time information so that the current time information can dynamically reflect the remaining amount of liquid. For example, if the current time information is 35.2s and the duration of the first timing unit is 3.5s, the calculation is an addition operation, and the calculation result is 38.7s. The time update subunit 2321 outputs 38.7s to the storage unit 231 and updates the current time information stored in the storage unit 231 from 35.2s to 38.7s. Finally, the current time information is 38.7s. In this embodiment, the reason why the heating element 210 stops working and enters the non-working state may be that it changes from the suction state to the non-suction state, or that the power switch M1 is turned off because the power supply control component 100 receives the pre-dry burning signal, or that the heating element 210 is not powered due to the heating component 200 being loose or having poor contact with the power supply control component 100.

[0101] In this embodiment, the storage unit 231 stores the accumulated duration threshold. The first duration threshold is the accumulated duration threshold, which corresponds to the first liquid threshold. The accumulated duration threshold is, for example, 95%, 96%, 97%, 98%, 99%, 99.5%, or 99.9% of the total suction time obtained from the test. In extreme cases, it can be 100%. For example, if the test shows that the liquid in the new heating component 200 can be used for 200 seconds, the accumulated duration threshold is set to, for example, 190s, 192s, 194s, 196s, 198s, 199s, or 199.8s. Please refer to... Figure 7The dry-burning logic control unit 232 includes an accumulation calculation subunit 2323 and a first dry-burning judgment subunit 2322. The accumulation calculation subunit 2323 is connected to the first timing unit 233 and the storage unit 231. One input terminal of the first dry-burning judgment subunit 2322 is connected to the accumulation calculation subunit 2323, and the other input terminal is connected to the accumulation duration threshold. The accumulation duration threshold can be obtained directly or indirectly from the storage unit 231. When the heating element 210 is working, the first timing of the first timing unit 233 gradually increases as the work progresses. The accumulation calculation subunit 2323 receives the current time information and the duration of the first timing and adds them together. The first dry-burning judgment subunit 2322 receives the calculation result of the accumulation calculation subunit 2323 and compares it with the accumulation duration threshold in real time. When the calculation result is greater than or equal to the accumulation duration threshold, it indicates that the remaining liquid is less than or equal to the first liquid threshold. At this time, the first dry-burning judgment subunit 2322 outputs a pre-dry-burning signal to the power supply control component 100. For example, if the cumulative duration threshold is 199.8s and the current time is 198s, when the heating element 210 starts working, the first timing unit 233 starts timing from 0. When the timing of the first timing unit 233 increases from 0 to 0.3s, the calculation result of the cumulative calculation subunit 2323 is 198.3s. The first dry-burning judgment subunit 2322 judges that 198.3s is less than 199.8s. As the heating element 210 continues to work, when the timing of the first timing unit 233 increases to 1.5s, the calculation... The result is 199.5s. The first dry burning judgment subunit 2322 judges that 199.5s is less than 199.8s. As the heating element 210 continues to work, when the timing of the first timing unit 233 increases to 1.8s, the calculation result is 199.8s. The first dry burning judgment subunit 2322 judges that the calculation result at this time is greater than or equal to 199.8s. The first dry burning judgment subunit 2322 knows that the remaining liquid in the liquid storage chamber is less than or equal to the first liquid threshold, so the first dry burning judgment subunit 2322 outputs a pre-dry burning signal. In this embodiment, after the first dry burning judgment subunit 2322 outputs the pre-dry burning signal, the power supply control component 100 quickly stops supplying power to the heating component 200, the heating element 210 stops working, and the first timing unit 233 stops timing. At this time, the timing time of the first timing unit 233 may stop at 1.801s. The time update subunit 2321 adds 198s and 1.801s to obtain the calculation result 199.801s. The time update subunit 2321 outputs 199.801s to the storage unit 231 and updates the current time information stored in the storage unit 231 from 198s to 199.801s. Finally, the current time information is 199.801s.In this embodiment, the time update subunit 2321 and the accumulation calculation subunit 2323 can be the same unit, different units, or some units can be shared. Furthermore, in other embodiments of this application, the accumulation duration threshold may not be stored in the storage unit 231, but can be directly stored in the dry-burning logic control unit 232.

[0102] In this embodiment, the first liquid threshold is not an actual parameter; it is characterized by an accumulated duration threshold. Specifically, this embodiment assumes that the average atomization rate of the liquid is known, for example, it can be measured experimentally. For instance, when the heating element 211 is in operation, the atomization rate of the liquid is 0.01 ml / s. When the heating element 211 operates for 10 seconds, it means that 0.1 ml of liquid has been atomized. At this time, the liquid in the heating component 200 has decreased by 0.1 ml. Assuming that the total liquid volume in the new heating component 200 is 2 ml, when the accumulated duration threshold is 199.8 seconds, it means that the first liquid threshold is 0.02 ml. For example, if the current time is 198 seconds, there is still 0.2 ml of liquid remaining in the storage chamber. When the heating element 211 operates again for 1.8 seconds (the duration of the first timing), the sum of the current time and the duration of the first timing reaches 199.8 seconds. At this time, the liquid in the storage chamber has decreased to 0.02 ml, and the first dry-burning judgment subunit 2322 generates a pre-dry-burning signal. Therefore, in this embodiment, the remaining amount of liquid in the storage chamber can be assessed by timing.

[0103] To achieve pre-dry burning signal output and save terminal resources, thus reducing costs, please continue reading. Figure 1In this embodiment, the liquid remaining quantity detection module 230 includes a signal terminal XH, which can be used to send a pre-dry burning signal. The pre-dry burning signal is output through the signal terminal XH and the first heating contact VCD2. The power supply contact VCD1 of the power supply control component 100 receives the pre-dry burning signal, and then the atomizing terminal AT of the system control module 130 receives the pre-dry burning signal. Specifically, in one implementation, if the system control unit controls the power switch M1 to be normally on in the suction state, the power supply contact VCD1 is always at a high level, and the corresponding first heating contact VCD2 is always at a high level. In this case, the pre-dry burning signal cannot be output through the first heating contact VCD2, and can only be output after the power switch M1 is turned off. That is, in this case, the pre-dry burning signal needs to wait for the next non-working time (non-suction state) of the heating element 210 to be output. In another implementation, if the system control module 130 controls the power switch M1 to be intermittently turned on during the suction state, for example, the system control unit controls the power switch M1 through PWM or PFM, the power supply contact VCD1 periodically outputs a high level (power supply) and a low level (no power supply). The corresponding first heating contact VCD2 receives intermittent power supply to make the heating element 210 work. That is, when the heating element 210 is working, the heating element 210 heats up and stops heating up. The intermittent power supply time includes a continuous power supply period (corresponding to the on-time) and a continuous no-power supply period (corresponding to the off-time). Since there is a continuous no-power supply period, the first heating contact VCD2 is at a low level. The dry burning logic control unit 232 can immediately send a pre-dry burning signal through the first heating contact VCD2 during the current continuous no-power supply period or send a pre-dry burning signal through the first heating contact VCD2 during the next continuous no-power supply period. This method can send the pre-dry burning signal quickly, and at most only needs to wait for one on-time. In other embodiments of this application, if the system control unit controls the power switch M1 to be intermittently turned on during the suction state, the pre-dry burning signal can also be output only during the next inactive time of the heating element 210. In this embodiment, the first heating contact VCD2 and the power supply contact VCD1 can be multiplexed (for power supply and signal transmission), which can save costs.

[0104] Additionally, please refer to other embodiments of this application. Figure 2Similarly, the pre-dry-burn signal is output through the signal terminal XH and the second heating contact GCD2. The power ground contact GCD1 of the power supply control component 100 is connected to the second heating contact GCD2. The power ground contact GCD1 receives the pre-dry-burn signal, and then the atomizing terminal AT of the system control module 130 receives the pre-dry-burn signal. Specifically, in one implementation, if the system control unit controls the power switch M1 to be normally on during the suction state, the pre-dry-burn signal is output through the second heating contact GCD2 after the power switch M1 is turned off. In another implementation, if the system control unit controls the power switch M1 to be intermittently on during the suction state, the intermittent power supply includes a continuous power supply period (corresponding to the on-time) and a continuous no-power supply period (corresponding to the off-time). The dry-burn logic control unit 232 can send the pre-dry-burn signal through the second heating contact GCD2 during the continuous no-power supply period. This method can send the pre-dry-burn signal quickly. In other embodiments of this application, if the system control unit controls the power switch M1 to be intermittently turned on during the suction state, the pre-dry burning signal can also be output only during the non-operation time of the heating element 210. Similarly, in this way, the second heating contact GCD2 and the power supply contact VCD1 can be reused, which can save costs.

[0105] In other embodiments of this application, the dry-burning logic control unit 232 is connected to both the first heating contact VCD2 and the second heating contact GCD2 via the signal terminal XH. The pre-dry-burning signal can be output through either the first heating contact VCD2 or the second heating contact GCD2. There are two signal terminals, which are connected to the first heating contact VCD2 and the second heating contact GCD2 respectively.

[0106] Please see Figure 1 and Figure 8aIn this embodiment, the system control module 130 of the power supply control component 100 further includes a dry-burning identification unit 133. The dry-burning identification unit 133 is connected to the power supply contact VCD1 (power switch M1 is on top) or the power ground contact GCD1 (power switch M1 is on bottom) via the atomizing end AT. When the heating component 200 outputs a pre-dry-burning signal, the dry-burning identification unit 133 can receive and identify it through the atomizing end AT, the power supply contact VCD1, or the power ground contact GCD1. The pre-dry-burning signal is a signal agreed upon by the dry-burning identification unit 133 and the heating component 200. After that, the dry-burning identification unit 133... The 33 outputs an intermediate signal corresponding to the pre-dry-burn signal. The switch control unit 132 controls the power switch M1 to open and close. Preferably, the dry-burn identification unit 133 controls the power switch M1 to be locked open and closed through the switch control unit 132. With this setting, even if the heating element 200 cannot continue to send the pre-dry-burn signal for various reasons, the power switch M1 will remain locked open and closed because the dry-burn identification unit 133 has previously identified the pre-dry-burn signal. This setting reduces the probability of the power switch M1 being turned on again due to signal interference, and further reduces the probability of the heating element 200 dry-burning. In addition, after identifying the pre-dry-burn signal, the dry-burn identification unit 133 will also output a signal to the indicator element, so that the indicator element indicates that the remaining liquid in the heating element 200 is less than or equal to a first liquid threshold, so as to prompt the user to replace the heating element 200. The indicator element is a conventional indicator such as a light indicator or a display screen indicator.

[0107] To ensure that the switch control unit 132 controls the power switch M1 to turn off after the dry-burning identification unit 133 outputs an intermediate signal corresponding to the pre-dry-burning signal, in this embodiment, the dry-burning identification unit 133 is connected to the airflow detection unit 131. When the dry-burning identification unit 133 outputs an intermediate signal corresponding to the pre-dry-burning signal, the airflow detection unit 131 receives the intermediate signal and stops working. At this time, the airflow detection unit 131 does not output a signal or outputs a non-suction signal. When the dry-burning identification unit 133 does not output an intermediate signal corresponding to the pre-dry-burning signal, the airflow detection unit 131 works normally. The airflow detection unit 131 can detect whether the electronic device is in a suction state or a non-suction state and outputs a corresponding signal. The switch control unit 132 controls whether the power switch M1 is turned on or off based on the received signal. Additionally, for other embodiments of this application, please refer to... Figure 8bThe system control module 130 also includes a logic gate unit 134. The first input of the logic gate unit 134 is connected to the airflow detection unit 131, and the second input is connected to the dry-burning identification unit 133. The output of the logic gate unit 134 is connected to the switch control unit 132. When the dry-burning identification unit 133 outputs an intermediate signal corresponding to the pre-dry-burning signal, the logic gate unit 134 receives this intermediate signal and outputs a signal corresponding to the non-suction signal or other signals to the switch control unit 132. Furthermore, the output of the logic gate unit 134 is not controlled by the output signal of the airflow detection unit 131. Unit 132 controls the power switch M1 to open or close. When the dry-burning identification unit 133 does not output an intermediate signal corresponding to the pre-dry-burning signal, the output signal of the logic gate unit 134 is controlled by the output signal of the airflow detection unit 131. The airflow detection unit 131 outputs a suction signal or a non-suction signal according to whether the electronic device is in a suction state or a non-suction state. The logic gate unit 134 outputs a signal corresponding to the suction signal or the non-suction signal. The switch control unit 132 controls whether the power switch M1 is turned on or off according to the received signal. Here, the logic gate unit 134 can be, for example, an AND gate, an OR gate, a NAND gate, or a NOR gate. For other embodiments in this application, please refer to... Figure 8c The dry-burning identification unit 133 is connected to the switch control unit 132. When the dry-burning identification unit 133 outputs an intermediate signal corresponding to the pre-dry-burning signal, the switch control unit 132 is connected to the dry-burning identification unit 133. The switch control unit 132 receives the intermediate signal and controls the power switch M1 to open. At this time, the switch control unit 132 is not controlled by the output signal of the airflow detection unit 131. When the dry-burning identification unit 133 does not output an intermediate signal corresponding to the pre-dry-burning signal, the switch control unit 132 is controlled by the output signal of the airflow detection unit 131. The switch control unit 132 controls whether the power switch M1 is turned on or off according to the signal output by the airflow detection unit 131. Preferably, after identifying the pre-dry-burning signal, the dry-burning identification unit 133 locks the output of the intermediate signal corresponding to the pre-dry-burning signal.

[0108] When the user replaces the heating element 200 with a new one, the system control module 130 needs to unlock the power switch M1 to allow for normal operation of the electronic device thereafter. For instructions on how to achieve this, please refer to [link to relevant documentation]. Figure 1 and Figure 9In this embodiment, the system control module 130 further includes a separation monitoring unit 135 and a detection resistor R1. The input terminal of the separation monitoring unit 135 is connected to the second terminal of the power switch M1. One end of the detection resistor R1 is connected to the first terminal of the power switch M1, and the other end is connected to the second terminal of the power switch M1. The resistance value of the detection resistor R1 is much greater than the resistance value of the heating element 210. When the power switch M1 is off, the separation monitoring unit 135 determines whether the heating component 200 is separated from the power supply control component 100 by monitoring the voltage at the second terminal of the power switch M1. Specifically, when the heating component 200 is connected to the power supply control component 100 (taking the power MOSFET as an example), the sensing resistor R1 is connected in series with the heating element 210. Since the resistance value of the sensing resistor is much greater than the resistance value of the heating element 210, the separation monitoring unit 135 monitors the voltage at the second terminal of the power switch M1 (i.e., the other end of the sensing resistor) as low. When the heating component 200 is separated from the power supply control component 100, the second terminal of the power switch M1 (i.e., the other end of the sensing resistor) is left floating. At this time, the voltage at the second terminal of the power switch M1 is the same as or close to the voltage at the positive terminal of the power supply 110, and the separation monitoring unit 135 monitors the voltage at the second terminal of the power switch M1 as high. Additionally, for other embodiments of this application, please refer to... Figure 2 When the power switch M1 is in the down position, the separation monitoring unit 135 detects a voltage level at the second terminal of the power switch M1 that is opposite to that described above, and will not be repeated here. Therefore, by monitoring the voltage at the second terminal of the power switch M1, the separation monitoring unit 135 can determine whether the heating component 200 and the power supply control component 100 are connected or disconnected. In this embodiment, when the electronic device is in the suction state, the separation monitoring unit 135 does not perform monitoring, that is, it does not determine whether the heating component 200 and the power supply control component 100 are in a disconnected or connected state, to prevent monitoring errors caused by the power switch M1 being turned on. When the electronic device is in the non-suction state, the separation monitoring unit 135 determines whether the heating component 200 and the power supply control component 100 are in a disconnected or connected state. In addition, the dry burning identification unit 133 and the separation monitoring unit 135 can be the same unit, or they can share some unit modules, or they can be independent circuit units. In this embodiment, they are described as mutually independent circuit units.

[0109] In this embodiment, please refer to Figure 10The dry-burning identification unit 133 includes a latching unit 1331. When the dry-burning identification unit 133 detects a pre-dry-burning signal, the latching unit 1331 locks the output of an intermediate signal corresponding to the pre-dry-burning signal, thereby locking the power switch M1 to open and off. The output of the separation monitoring unit 135 is connected to the latching unit 1331. When the separation monitoring unit 135 detects that the heating component 200 is separated from the power supply control component 100, the separation monitoring unit 135 outputs a separation signal to the latching unit 1331, and the intermediate signal output by the latching unit 1331 corresponding to the pre-dry-burning signal is unlocked, releasing the lock on the power switch M1 to open and off. Afterwards, whether the signal output by the dry-burning identification unit 133 is locked depends on whether a pre-dry-burning signal is received again. In this embodiment, the latching unit 1331 can be, for example, an SR latch, various conventional triggers, etc. In other embodiments of this application, the dry-burning identification unit 133 can also lock the power switch M1 in other ways, and the power supply control component 100 can also unlock it in other ways.

[0110] To power the liquid remaining quantity detection module 230, please refer to [link / reference needed]. Figure 1 , Figure 3In this embodiment, the heating component 200 further includes a first diode D1 and a power supply capacitor 220. The liquid remaining quantity detection module 230 includes a heating power supply terminal VDD2 and a heating ground terminal GND2. The anode of the first diode D1 is connected to the first heating contact VCD2, the first heating contact VCD2 is connected to the power supply contact VCD1, the cathode of the first diode D1 is connected to the heating power supply terminal VDD2 and the first terminal of the power supply capacitor 220, the second terminal of the power supply capacitor 220 is connected to the heating ground terminal GND2, and the heating ground terminal GND2 is connected to the second heating contact GCD2. The first terminal of the power supply capacitor 220 is the positive terminal, and the second terminal is the negative terminal. In this embodiment, when the power switch M1 of the power supply control component 100 is turned on, the positive terminal of the power supply 110 forms a circuit through the power switch M1, the atomizing end AT, the power supply contact VCD1, the first heating contact VCD2, the first diode D1, the heating power supply end VDD2, the heating ground end GND2, the second heating contact GCD2, the power ground contact GCD1, and the negative terminal of the power supply 110 to supply power to the liquid remaining quantity detection module 230. As a result, the units in the liquid remaining quantity detection module 230 can work. For example, the first timing unit 233 can keep time, and the dry burning logic control unit 232 can perform logic judgment. At the same time, the positive terminal of the power supply 110 forms a circuit through the power switch M1, the atomizing end AT, the power supply contact VCD1, the first heating contact VCD2, the first diode D1, the first end of the power supply capacitor 220, the second end of the power supply capacitor 220, the second heating contact GCD2, the power ground contact GCD1, and the negative terminal of the power supply 110 to charge the power supply capacitor 220. The power supply capacitor 220 can be fully charged quickly. When power switch M1 is off (e.g., during the off-off time of PWM or PFM mode, or in a non-vacuuming state), power supply 110 cannot supply power to liquid remaining detection module 230. A circuit is formed between the first terminal of power supply capacitor 220, heating power supply terminal VDD2, heating ground terminal GND2, and the second terminal of power supply capacitor 220 to briefly supply power to liquid remaining detection module 230. This power supply duration is typically a few milliseconds to several hundred milliseconds, which is sufficient to supply power to liquid remaining detection module 230 during the off-off time of PWM or PFM mode, and also during the transition from a vacuuming state to a non-vacuuming state. When the heating element 210 is not working, the power supply capacitor 220 can also briefly supply power to the liquid remaining detection module 230 so that the liquid remaining detection module 230 can continue to work. For example, the time update subunit 2321 calculates the current time information with the duration of the first timer and outputs the calculation result to the storage unit 231 to update the current time information in the storage unit 231. After that, the storage unit 231 stores the current time information. When the power supply capacitor 220 finishes discharging, the liquid remaining detection module 230 stops working. At this time, the current time information stored in the storage unit 231 will not be lost due to the lack of power.When the power switch M1 is turned on again (e.g., during the on-time of PWM or PFM mode, in which case the charge of the power supply capacitor 220 is sufficient to maintain the operation of the liquid remaining detection module 230 during the off-time), the power supply capacitor 220 can be recharged. In this embodiment, due to the presence of the first diode D1, the power supply capacitor 220 will not supply power to the heating element 210 during the off-time or when the heating element 210 is not working. This prevents the rapid release of the charge stored on the power supply capacitor 220 and does not interfere with signal transmission. Moreover, since the liquid remaining detection module 230 can be briefly powered by the power supply capacitor 220, a separate battery is not required in the heating assembly 200 to power the liquid remaining detection module 230. However, this application is not limited to this. In other embodiments of this application, the power supply capacitor 220 can be replaced with a battery, which is used specifically to power the liquid remaining detection module 230. In other embodiments of this application, the liquid remaining quantity detection module 230 can be powered through the power supply capacitor 220, instead of the power supply directly powering the liquid remaining quantity detection module 230 when the power switch is turned on.

[0111] Additionally, please refer to other embodiments of this application. Figure 2 The heating assembly 200 also includes a first diode D1 and a power supply capacitor 220. The liquid remaining quantity detection module 230 includes a heating power supply terminal VDD2 and a heating ground terminal GND2. The anode of the first diode D1 is connected to the first heating contact VCD2, the first heating contact VCD2 is connected to the power supply contact VCD1, the power supply contact VCD1 is connected to the positive terminal of the power supply 110, the cathode of the first diode D1 is connected to the heating power supply terminal VDD2 and the first terminal of the power supply capacitor 220, the second terminal of the power supply capacitor 220 is connected to the heating ground terminal GND2, the heating ground terminal GND2 is connected to the second heating contact GCD2, the second heating contact GCD2 is connected to the second terminal of the power switch M1 via the power ground contact GCD1 and the atomizing terminal AT, the first terminal of the power switch M1 is connected to the system ground terminal GND1, and the system ground terminal GND1 is connected to the negative terminal of the power supply 110. At this time, the liquid remaining quantity detection module 230 is connected to the second heating contact GCD2 to send a pre-dry burning signal or other signals. The principles of capacitor charging and power supply are similar to those described above, and will not be repeated here.

[0112] In addition, in this embodiment, the heating detection unit 234 is connected to the first heating contact VCD2 or the second heating contact GCD2 through the signal terminal XH. In other embodiments of this application, the heating detection unit 234 may also be connected to the first heating contact VCD2 or the second heating contact GCD2 through other terminals or separate terminals, without using the signal terminal XH.

[0113] In this embodiment, the system control module 130 and the power switch M1 can be fabricated on the same chip, i.e., located on the same semiconductor substrate. This chip can be called a power supply control chip. In this case, the system power supply terminal VDD1 is the system power supply pin, the system ground terminal GND1 is the system ground pin, the airflow terminal SW is the airflow pin, and the atomization terminal AT is the atomization pin. However, this application is not limited to this. In other embodiments of this application, the system control module 130 is fabricated on one chip, called the system control chip, and the power switch M1 is fabricated on another chip, called the power chip. In this case, the system control module 130 and the power switch M1 are located on two different semiconductor substrates. In this case, the system power supply terminal VDD1 is the system power supply pin, the system ground terminal GND1 is the system ground pin, the airflow terminal SW is the airflow pin, and the atomization terminal AT is the atomization pin. The system control chip and the power chip can be packaged together to form a chip product.

[0114] In this embodiment, the liquid remaining quantity detection module 230 is fabricated on the same chip, that is, on the same semiconductor substrate. This chip is called the liquid remaining quantity detection chip. At this time, the heating power supply terminal VDD2 is the heating power supply pin, the heating ground terminal GND2 is the heating ground pin, and the signal terminal XH is the signal pin.

[0115] Second Embodiment

[0116] Please see Figure 11 , Figure 11 This is a circuit diagram of the liquid remaining quantity detection module according to the second embodiment of this application. This embodiment is similar to the first embodiment. Therefore, the parts not described in this embodiment can be referred to the first embodiment. The main difference between this embodiment and the first embodiment is that the current time information is not the accumulated information.

[0117] Please refer to the above. Figure 1 and Figure 11 In this embodiment, the liquid remaining quantity detection module 230 includes a storage unit 231, a first timing unit 233, and a dry-burning logic control unit 232. The storage unit 231 stores current time information associated with the liquid remaining quantity, meaning the current time information can be used to characterize the liquid remaining quantity. The initial value of the current time information is, for example, 200s, representing the total time the liquid can be atomized. As the liquid is atomized, the current time information is updated to gradually decrease; at this time, the current time information is, for example, 136.3s.

[0118] Please refer to the above. Figure 6In this embodiment, the dry burning logic control unit 232 includes a time update subunit 2321, which is connected to the storage unit 231 and the first timing unit 233. When the heating element 210 stops working, the time update subunit 2321 calculates the current time information with the duration of the first timing and outputs the calculation result to the storage unit 231 to update the current time information so that the current time information can dynamically reflect the remaining amount of liquid. For example, if the current time information is 162.7s and the duration of the first timing is 3.2s, the calculation is a subtraction operation, and the calculation result is 159.5s. The time update subunit 2321 outputs 159.5s to the storage unit 231 and updates the current time information stored in the storage unit 231 from 162.7s to 159.5s. Finally, the current time information is 159.5s. In this embodiment, the heating element 210 may stop working because it changes from a suction state to a non-suction state, or because the power supply control component 100 receives a pre-dry burning signal and causes the power switch M1 to turn off, or because the heating component 200 and the power supply control component 100 are loose or have poor contact, resulting in the heating element 210 not being powered.

[0119] In this embodiment, storage unit 231 stores a cumulative reduction time threshold. The first time threshold is the cumulative reduction time threshold, which corresponds to the first liquid threshold. The cumulative reduction time threshold is, for example, 5%, 4%, 3%, 2%, 1%, 0.5%, or 0.1% of the total aspiration time obtained from the test. In extreme cases, the cumulative reduction time threshold can be 0 seconds. For example, if the test shows that the liquid in the new heating component 200 can be used for 200 seconds, the cumulative reduction time threshold would be, for example, 10 seconds, 8 seconds, 6 seconds, 4 seconds, 2 seconds, 1 second, 0.5 seconds, or 0.2 seconds. Please continue to participate. Figure 11The dry-burning logic control unit 232 includes a cumulative reduction calculation subunit 2325 and a second dry-burning judgment subunit 2324. The cumulative reduction calculation subunit 2325 is connected to the first timing unit 233 and the storage unit 231, respectively. One input terminal of the second dry-burning judgment subunit 2324 is connected to the cumulative reduction calculation subunit 2325, and the other input terminal is connected to the cumulative reduction duration threshold. The cumulative reduction duration threshold can be obtained directly or indirectly from the storage unit 231. When the heating element 210 is working, the first timing of the first timing unit 233 gradually increases as heating progresses. The cumulative reduction calculation subunit 2325 receives the current time information and the duration of the first timing and performs a subtraction calculation. The second dry-burning judgment subunit 2324 receives the calculation result of the cumulative reduction calculation subunit 2325 and compares it with the cumulative reduction duration threshold in real time. When the calculation result is less than or equal to the cumulative reduction duration threshold, it indicates that the remaining liquid is less than or equal to the first liquid threshold. At this time, the first dry-burning judgment subunit 2322 outputs a pre-dry-burning signal to the power supply control component 100. For example, if the cumulative reduction time threshold is 1 second and the current time is 3.1 seconds, when the heating element 210 starts working, the first timing unit 233 starts counting from 0. When the timing of the first timing unit 233 increases from 0 to 1 second, the calculation result of the cumulative reduction calculation subunit 2325 is 2.1 seconds. The second dry burning judgment subunit 2324 judges that 2.1 seconds is greater than 1 second. As the heating element 210 continues to work, when the timing of the first timing unit 233 increases to 2 seconds, the calculation result is 1 second. At 1.1s, the first dry-burning judgment subunit 2322 determines that 1.1s is still greater than 1s. As the heating element 210 continues to operate, when the timing of the first timing unit 233 increases to 2.1s, the calculated result is 1s. The second dry-burning judgment subunit 2324 determines that the calculated result at this time is less than or equal to the cumulative reduction time threshold of 1s. The second dry-burning judgment subunit 2324 knows that the remaining liquid in the liquid storage chamber is less than or equal to the first liquid threshold, and thus the second dry-burning judgment subunit 2324 outputs a pre-dry-burning signal. In this embodiment, the first liquid threshold is not an actual existing parameter; the first liquid threshold is characterized by the cumulative reduction time threshold. Furthermore, after the second dry-burning judgment subunit 2324 outputs the pre-dry-burning signal, the power supply control component 100 quickly stops supplying power to the heating component 200, the heating element 210 stops working, and the first timing unit 233 stops timing. At this time, the timing time of the first timing unit 233 may stop at 2.102s. The time update subunit 2321 subtracts 3.1s from 2.102s to obtain the calculation result 0.998s. The time update subunit 2321 outputs 0.998s to the storage unit 231 and updates the current time information stored in the storage unit 231 from 3.1s to 0.998s. Finally, the current time information is 0.998s.In this embodiment, the time update subunit 2321 and the cumulative decrement calculation subunit 2325 can be the same unit, different units, or some units can be shared. Furthermore, in other embodiments of this application, the cumulative decrement duration threshold may not be stored in the storage unit 231, but can be directly stored in the dry-burning logic control unit 232.

[0120] Third Embodiment

[0121] Please see Figure 12 , Figure 12 This is a circuit block diagram of an electronic device according to the third embodiment of this application. This embodiment is similar to the first and second embodiments. Therefore, the parts not described in this embodiment can be referred to the first and second embodiments. The main difference between this embodiment and the first and second embodiments is that the heating component also supports blind insertion.

[0122] Please see Figure 12 In this embodiment, the heating component 300 supports blind insertion. That is, when the heating component 300 is connected to the power supply control component 100, the first heating contact VCD2 can be connected to the power supply contact VCD1, and the second heating contact GCD2 can be connected to the power ground contact GCD1. Alternatively, the second heating contact GCD2 can be connected to the power supply contact VCD1, and the first heating contact VCD2 can be connected to the power ground contact GCD1. The heating component 300 can work normally in both cases.

[0123] To accommodate blind insertion, in this embodiment, the heating assembly 300 includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, and a power supply capacitor 220. The liquid remaining quantity detection module 230 includes a heating power supply terminal VDD2 and a heating ground terminal GND2. The anode of the first diode D1 is connected to the first heating contact VCD2, the first end of the heating element 210, and the cathode of the third diode D3. The cathode of the first diode D1 is connected to the heating power supply terminal VDD2, the first end of the power supply capacitor 220, and the cathode of the second diode D2. The anode of the second diode D2 is connected to the cathode of the fourth diode D4 and the second heating contact GCD2. The anode of the third diode D3 is connected to the second end of the power supply capacitor 220 and the anode of the fourth diode D4. The second end of the power supply capacitor 220 is connected to the heating ground terminal GND2.

[0124] Therefore, when the heating component 300 is connected to the power supply control component 100, and the first heating contact VCD2 is connected to the power supply contact VCD1, and the second heating contact GCD2 is connected to the power ground contact GCD1, when the power switch M1 is turned on, the positive terminal of the power supply 110, the power switch M1, the atomizing terminal AT, the power supply contact VCD1, the first heating contact VCD2, the first diode D1, the heating power supply terminal VDD2, the liquid remaining detection module 230, the heating ground terminal GND2, the fourth diode D4, the second heating contact GCD2, the power ground contact GCD1, and the negative terminal of the power supply 110 form a circuit to supply the liquid remaining... The liquid level detection module 230 is powered. At the same time, the positive terminal of the power supply 110, the power switch M1, the atomizing terminal AT, the power supply contact VCD1, the first heating contact VCD2, the first diode D1, the power supply capacitor 220, the fourth diode D4, the second heating contact GCD2, the power ground contact GCD1, and the negative terminal of the power supply 110 form a circuit to charge the power supply capacitor 220. When the power switch M1 is turned off, the first terminal of the power supply capacitor 220, the heating power supply terminal VDD2, the liquid level detection module 230, the heating ground terminal GND2, and the second terminal of the power supply capacitor 220 form a discharge circuit to power the liquid level detection module 230.

[0125] When the heating component 300 is connected to the power supply control component 100, and the second heating contact GCD2 is connected to the power supply contact VCD1, and the first heating contact VCD2 is connected to the power ground contact GCD1, when the power switch M1 is turned on, the positive terminal of the power supply 110, the power switch M1, the atomizing terminal AT, the power supply contact VCD1, the second heating contact GCD2, the second diode D2, the heating power supply terminal VDD2, the liquid remaining detection module 230, the heating ground terminal GND2, the third diode D3, the first heating contact VCD2, the power ground contact GCD1, and the negative terminal of the power supply 110 form a circuit to supply the liquid remaining quantity. The detection module 230 is powered. Simultaneously, the positive terminal of power supply 110, power switch M1, atomizing terminal AT, power supply contact VCD1, second heating contact GCD2, second diode D2, power supply capacitor 220, third diode D3, first heating contact VCD2, power ground contact GCD1, and the negative terminal of power supply 110 form a circuit to charge the power supply capacitor 220. When power switch M1 is off, the first terminal of power supply capacitor 220, heating power supply terminal VDD2, liquid remaining quantity detection module 230, heating ground terminal GND2, and the second terminal of power supply capacitor 220 form a discharge circuit to power the liquid remaining quantity detection module 230. Additionally, for other embodiments of this application, please refer to... Figure 13When power switch M1 is in the down position, power supply 110 supplies power to liquid remaining quantity detection module 230, charges power supply capacitor 220, and power supply capacitor 220 supplies power to liquid remaining quantity detection module 230. The specific principle is the same as... Figure 12 Similarly, I will not go into details here.

[0126] To facilitate the liquid level detection module 230 in sending pre-dry burning signals and other signals to the power supply control component 100, and to facilitate the liquid level detection module 230 in receiving signals sent from the power supply control component 100, please refer to [link to relevant documentation]. Figure 12 In this embodiment, the liquid remaining quantity detection module 230 is connected to both the first heating contact VCD2 and the second heating contact GCD2 via the signal terminal XH. When the heating assembly 300 is connected to the power supply control assembly 100, and the liquid remaining quantity detection module 230 needs to send a signal, it sends a signal to both the first heating contact VCD2 and the second heating contact GCD2. At this time, only one signal is valid. For example, when the power switch M1 is in the upper position, regardless of whether the first heating contact VCD2 or the second heating contact GCD2 sends a signal to the power supply contact VCD1, the corresponding signal received by the power supply contact VCD1 is valid, while the signal received by the power ground contact GCD1 is invalid (because the power ground contact GCD1 is connected to the negative terminal of the power supply 110, the power ground contact GCD1 is always at a low level); when the power switch M1 is in the lower position (see...), the liquid remaining quantity detection module 230 is connected to both the first heating contact VCD2 and the second heating contact GCD2. At this time, only one signal is valid. Figure 13 Regardless of whether the first heating contact VCD2 or the second heating contact GCD2 sends a signal to the power ground contact GCD1, the corresponding signal received by the power ground contact GCD1 is a valid signal, while the signal received by the power supply contact VCD1 is an invalid signal (because the power supply contact VCD1 is directly connected to the positive terminal of power supply 110, the power supply contact VCD1 is always at a high level). In this embodiment, two separate signal terminals XH1 and XH2 are provided.

[0127] In this embodiment, since the heating element 210 does not distinguish polarity, the first end of the heating element 210 is connected to the first heating contact VCD2 and the second end is connected to the second heating contact GCD2, or vice versa. This makes no difference to the heating element 210. Therefore, the heating element 210 itself supports blind insertion.

[0128] In this embodiment of the application, the heating component 300 is configured to support blind insertion, so that the electronic device can be used regardless of how the user connects the heating component 300 to the power supply control component 100, which facilitates the user's use.

[0129] Fourth embodiment

[0130] Please see Figure 14, Figure 14 This is a circuit block diagram of an electronic device according to the fourth embodiment of this application. This embodiment is similar to the first and second embodiments. Therefore, the parts not described in this embodiment can be referred to the first and second embodiments. The main difference between this embodiment and the first and second embodiments is that the pre-dry burning signal is not sent through the first heating contact VCD2 or the second heating contact GCD2.

[0131] Please see Figure 14 In this embodiment, the heating component 500 includes a second communication contact TXD2, which communicates with the dry-burning logic control unit (see reference) via the signal terminal XH. Figure 7 The power supply control component 400 includes a first communication contact TXD1, which is connected to the system control module 130. When the heating component 500 is connected to the power supply control component 400, the first communication contact TXD1 and the second communication contact TXD2 are electrically connected. The power supply control component 400 and the heating component 500 can communicate signals in a timely manner through the first communication contact TXD1 and the second communication contact TXD2. The communication signals include a pre-dry burning signal sent by the heating component 500 to the power supply control component 400.

[0132] The electronic device in this embodiment includes a first communication contact TXD1 and a second communication contact TXD2. The first communication contact TXD1 and the second communication contact TXD2 are specifically used for sending and receiving signals between the power supply control component 400 and the heating component 500. The communication signal does not need to share lines and contacts with the power supply signal, so the heating component 500 and the power supply control component 400 can send signals more promptly without waiting. The pre-dry burning signal can be sent more promptly. When the remaining e-liquid is less than or equal to the first liquid threshold, the power supply control component 400 can respond faster and is less likely to deteriorate. In particular, in the control mode where the power switch M1 is always on, the first embodiment needs to wait for the inhalation state to end before sending the pre-dry burning signal, which has a relatively high probability of causing actual dry burning. However, in this embodiment, the pre-dry burning signal can be sent directly to the first communication terminal TXD1 through the second communication terminal TXD2, which greatly reduces the probability of actual dry burning. In addition, in other embodiments of this application, the electronic device is not limited to the first communication terminal TXD1 and the second communication terminal TXD2. More terminals can be provided as needed for communication or for auxiliary communication. When there are more terminals, blind insertion function needs to be considered. The specific implementation method can be referred to the second embodiment, which will not be repeated here.

[0133] In addition, in this embodiment, the liquid remaining quantity detection module 230 is connected to the first heating contact VCD2 and the second heating contact GCD2 respectively. The heating detection unit is connected to the first heating contact VCD2 or the second heating contact GCD2 through a separately set detection terminal JC to detect whether the heating element 210 is working.

[0134] Additionally, please refer to other embodiments of this application. Figure 15 The heating component 700 includes a second communication unit 235, which is connected to the dry-burning logic control unit 232 via a signal terminal. The power supply control component 600 includes a first communication unit 136, which is connected to the system control module 130. When the heating component 700 and the power supply control component 600 are connected, the first communication unit 136 and the second communication unit 235 can communicate wirelessly. The power supply control component 600 and the heating component 700 can communicate via the first communication unit 136 and the second communication unit 235. The communication signals include the pre-dry-burning signal sent by the heating component 700 to the power supply control component 600. Here, the first communication unit 136 and the second communication unit 235 themselves, as well as the specific methods for implementing wireless communication, are conventional technologies in the art and will not be described in detail here.

[0135] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0136] It should be understood that "a plurality of" as used herein refers to two or more. Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0137] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus embodiments, since they are basically similar to the method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0138] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A heating assembly for preventing dry burning, the heating assembly being detachably connected to a power supply control assembly, characterized in that, The heating component includes: A liquid storage chamber, used to store liquids; The heating element has a working state and a non-working state. In the working state, it is used to atomize liquid to generate aerosol. The first heating contact and the second heating contact are used for contact-type electrical connection with the power supply control component. The first heating contact is electrically connected to one end of the heating element, and the second heating contact is electrically connected to the other end of the heating element. The liquid remaining quantity detection module includes: A storage unit for storing current time information associated with the remaining liquid level; The first timing unit is used to perform a first timing of at least a portion of the duration during which the heating element is in operation; The dry-burning logic control unit is connected to the storage unit and the first timing unit, and is also used to communicate with the power supply control component. The dry-burning logic control unit determines whether to output a pre-dry-burning signal to the power supply control component based on the current time information and the duration of the first timing. The pre-dry-burning signal is used to indicate that the remaining liquid is less than or equal to a first liquid threshold. The pre-dry-burning signal is output to the power supply control component to stop the power supply to the heating element, so that the heating element stops working and is in a non-working state.

2. The heating assembly according to claim 1, characterized in that, The dry-burning logic control unit calculates the current time information and the duration of the first timer, and compares the calculation result with a preset first duration threshold. The dry-burning logic control unit determines whether to output a pre-dry-burning signal to the power supply control component based on the comparison result, wherein the first duration threshold corresponds to the first liquid threshold.

3. The heating assembly according to claim 2, characterized in that, The storage unit or the dry-burning logic control unit stores an accumulated duration threshold. The first duration threshold shown is the accumulated duration threshold. The dry-burning logic control unit includes an accumulation calculation subunit and a first dry-burning judgment subunit. The accumulation calculation subunit is connected to the first timing unit and the storage unit. One input terminal of the first dry-burning judgment subunit is connected to the accumulation calculation subunit, and its other input terminal is connected to the accumulated duration threshold. The accumulation calculation subunit receives the current time information and the duration of the first timing unit and adds them together. The first dry-burning judgment subunit receives the calculation result from the accumulation calculation subunit and compares it with the accumulated duration threshold. When the calculation result is greater than or equal to the accumulated duration threshold, a pre-dry-burning signal is determined to be output; or... The storage unit or the logic control unit stores the cumulative duration threshold. The first duration threshold shown is the cumulative duration threshold. The logic control unit includes a cumulative calculation subunit and a second dry burning judgment subunit. The cumulative calculation subunit is connected to the first timing unit and the storage unit. One input terminal of the second dry burning judgment subunit is connected to the cumulative calculation subunit, and the other input terminal is connected to the cumulative duration threshold. The cumulative calculation subunit receives the current time information and the duration of the first timing and performs a subtraction calculation. The second dry burning judgment subunit receives the calculation result of the cumulative calculation subunit and compares it with the cumulative duration threshold. When the calculation result is less than or equal to the cumulative duration threshold, a pre-dry burning signal is determined to be output.

4. The heating assembly according to claim 1, characterized in that, The first heating contact or the second heating contact is electrically connected to the dry-burning logic control unit. The first heating contact or the second heating contact receives intermittent power supply to keep the heating element in working condition. The intermittent power supply time includes a continuous power supply period and a continuous no power supply period. During the continuous power supply period, the heating element is powered, and during the continuous no power supply period, the heating element is not powered. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs the pre-dry-burning signal to the power supply control component through the first heating contact or the second heating contact during the continuous no power supply period.

5. The heating assembly according to claim 1, characterized in that, The first heating contact or the second heating contact is electrically connected to the dry-burning logic control unit. The first heating contact or the second heating contact is continuously or intermittently powered to keep the heating element in working condition. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs the pre-dry-burning signal to the power supply control component through the first heating contact or the second heating contact when the heating element is not in working condition.

6. The heating assembly according to claim 1, characterized in that, The heating component includes a second communication contact, which is electrically connected to the dry-burning logic control unit. The second communication contact is also used for contact-type electrical connection with the power supply control component. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs a pre-dry-burning signal to the power supply control component through the second communication contact; or... The heating component includes a second communication unit, which is electrically connected to the dry-burning logic control unit. The second communication unit is also used for wireless communication with the power supply control component. When the dry-burning logic control unit determines to output a pre-dry-burning signal, the dry-burning logic control unit outputs the pre-dry-burning signal to the power supply control component through the second communication unit.

7. The heating assembly according to any one of claims 1-6, characterized in that, The dry-burning logic control unit includes a time update subunit, which is connected to the storage unit and the first timing unit. When the heating element enters a non-working state, the time update subunit calculates the current time information and the duration of the first timing unit to obtain the calculation result. The time update subunit outputs the calculation result to the storage unit to update the current time information.

8. The heating assembly according to any one of claims 1-6, characterized in that, The heating assembly further includes a first diode and a power supply capacitor. The liquid remaining quantity detection module includes a heating power supply terminal and a heating ground terminal. The anode of the first diode is connected to a first heating contact, which is connected to the power supply contact of the power supply control assembly. The cathode of the first diode is connected to both the heating power supply terminal and the first terminal of the power supply capacitor. The second terminal of the power supply capacitor is connected to the heating ground terminal, which is connected to the second heating contact. Alternatively... The heating assembly includes a first diode, a second diode, a third diode, a fourth diode, and a power supply capacitor. The liquid remaining quantity detection module includes a heating power supply terminal and a heating ground terminal. The anode of the first diode is connected to a first heating contact, a first end of the heating element, and the cathode of the third diode. The cathode of the first diode is connected to the heating power supply terminal, a first end of the power supply capacitor, and the cathode of the second diode. The anode of the second diode is connected to the cathode of the fourth diode and the second heating contact. The anode of the third diode is connected to the second end of the power supply capacitor and the anode of the fourth diode. The second end of the power supply capacitor is connected to the heating ground terminal. Alternatively, The liquid remaining quantity detection module is connected to the first heating contact and the second heating contact respectively to send a pre-dry burning signal through the first heating contact or the second heating contact.

9. An electronic device, characterized in that, include: The heating assembly as described in any one of claims 1-8; A power supply control component for detachable connection with the heating component, the power supply control component comprising: power supply; The system control module is used to connect to the positive and negative terminals of the power supply; The system includes a power switch, a power supply contact, and a power ground contact. The control terminal of the power switch is used to connect to a system control module. Its first terminal is connected to the positive terminal of the power supply, and its second terminal is connected to the power supply contact. The power ground contact is connected to the negative terminal of the power supply. The power supply contact is connected to one of a first heating contact and a second heating contact, and the power ground contact is connected to the other of the first and second heating contacts. Alternatively, the control terminal of the power switch is used to connect to the system control module. Its first terminal is connected to the negative terminal of the power supply, and its second terminal is connected to the power ground contact. The power supply contact is connected to the positive terminal of the power supply, and the power supply contact is connected to one of the first and second heating contacts, and the power ground contact is connected to the other of the first and second heating contacts. Specifically, when the power supply control component is connected to the heating component and the system control module controls the power switch to be turned on, the power supply provides power to the heating element; when the power supply control component is connected to the heating component and the system control module controls the power switch to be turned off, the power supply stops providing power to the heating element. Specifically, when the system control module receives the pre-dry-burn signal output by the heating component, its control power switch is turned off to stop the power supply control component from supplying power to the heating element.

10. The electronic device according to claim 9, characterized in that, When the system control module receives the pre-dry burning signal output by the heating component, its control power switch is locked and disconnected. The system control module also includes a separation monitoring unit, which is connected to the second terminal of the power switch. The separation monitoring unit is used to monitor whether the heating component is connected to the power supply control component. When the system control module receives the pre-dry burning signal and the separation monitoring unit detects that the heating component is separated from the power supply control component, the system control module releases the lock on the power switch to disconnect.

11. The electronic device according to claim 10, characterized in that, The system control module includes an airflow end, an airflow detection unit, and a switch control unit. The power supply control component includes an airflow sensor, one end of which is connected to the airflow end and the other end to the negative terminal of the power supply. The airflow detection unit is connected to both the airflow end and the switch control unit. The switch control unit is connected to the control terminal of the power switch. The airflow detection unit also receives an intermediate signal corresponding to the pre-dry-burning signal. When the system control module receives the pre-dry-burning signal, the airflow detection unit stops working, and the switch control unit controls the power switch to open and shut off. Alternatively... The system control module includes an airflow end, an airflow detection unit, a logic gate unit, and a switch control unit. The power supply control component includes an airflow sensor, one end of which is connected to the airflow end and the other end to the negative terminal of the power supply. The airflow detection unit is connected to both the airflow end and the logic gate unit. The logic gate unit also receives an intermediate signal corresponding to the pre-dry-burning signal. The output terminal of the logic gate unit is connected to the switch control unit, which is connected to the control terminal of the power switch. When the logic gate unit receives the intermediate signal corresponding to the pre-dry-burning signal, it outputs a corresponding signal to the switch control unit, which then controls the power switch to open or close. The system control module includes an airflow end, an airflow detection unit, and a switch control unit. The power supply control component includes an airflow sensor, wherein one end of the airflow sensor is connected to the airflow end and the other end is connected to the negative terminal of the power supply. The airflow detection unit is connected to both the airflow end and the switch control unit. The switch control unit is connected to the control terminal of the power switch. The switch control unit also receives an intermediate signal corresponding to the pre-dry burning signal. When the system control module receives the pre-dry burning signal, the switch control unit controls the power switch to disconnect and cut off.

12. The electronic device according to claim 9, characterized in that, When the system control module receives the pre-dry burning signal output by the heating component, it controls the power switch to lock and disconnect. The system control module includes a latching unit. When the system control module receives the pre-dry burning signal, the latching unit is used to lock the output of an intermediate signal corresponding to the pre-dry burning signal, so as to control the power switch to lock and disconnect. or, The system control module and the power switch are integrated onto the same chip; or... The system control module is integrated on one chip, and the power switch is integrated on another chip; or... The liquid remaining quantity detection module is integrated onto the same chip.

13. The electronic device according to claim 9, characterized in that, The system control module outputs a square wave signal to the control terminal of the power switch via PWM or PFM to intermittently power the first or second heating contact, including periods of continuous no power supply. The system control module is connected to the power supply contact or power ground contact. When the dry-burning logic control unit outputs a pre-dry-burning signal through the first or second heating contact during a period of continuous no power supply, the system control module receives the pre-dry-burning signal through the corresponding power supply contact or power ground contact. Alternatively... The system control module is connected to the power supply contact or the power ground contact. When the dry-burning logic control unit outputs a pre-dry-burning signal through the first heating contact or the second heating contact when the heating element is not in operation, the system control module receives the pre-dry-burning signal through the corresponding power supply contact or the power ground contact; or... The power supply control component includes a first communication contact connected to the system control module. The first communication contact is also used to connect to a second communication contact of the heating component. When the dry-burning logic control unit outputs a pre-dry-burning signal through the second communication contact, the system control module receives the pre-dry-burning signal through the first communication contact; or... The power supply control component includes a first communication unit, which is connected to the system control module. The first communication unit is used to wirelessly connect with the second communication unit of the heating component. When the dry burning logic control unit outputs a pre-dry burning signal through the second communication unit, the first communication unit receives the pre-dry burning signal.

14. A liquid remaining quantity control circuit, applied to a heating assembly including a heating element, characterized in that, The liquid remaining amount control circuit includes: A storage unit for storing current time information associated with the remaining liquid level; The first timing unit is used to perform a first timing of at least a portion of the duration during which the heating element is in operation; The dry-burning logic control unit is connected to the storage unit and the first timing unit, and is also used to communicate with the power supply control component. The dry-burning logic control unit determines whether to output a pre-dry-burning signal to the power supply control component based on the current time information and the duration of the first timing. The pre-dry-burning signal is used to indicate that the remaining liquid is less than or equal to a first liquid threshold. The pre-dry-burning signal is output to the power supply control component to stop the power supply to the heating element, so that the heating element stops working and is in a non-working state.

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