Aerosol-generating device

Abstract

The application discloses an aerosol generating device, which comprises a main body and a shell sleeved outside the main body. The aerosol generating device further comprises a touch unit arranged on the main body and opposite to the inner wall surface of the shell, and used for sensing the touch state of the shell. The main body comprises an electric core, a touch detection circuit electrically connected with the electric core and the touch unit, and the touch detection circuit comprises a signal end configured to output a first wake-up signal when the shell is in the touch state and output a second wake-up signal when the shell is in a non-touch state. A controller is electrically connected with the touch detection circuit, a first power supply branch is established between the electric core and the controller, a switching circuit is arranged in the first power supply branch, and the switching circuit is electrically connected with the touch detection circuit. Therefore, the controller is powered on when the shell is in the touch state, and the controller is powered off when the shell is in the non-touch state, so that the power consumption of the aerosol generating device can be reduced, and energy waste can be avoided.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to an aerosol generation apparatus. Background Technology

[0002] As portable electronic devices, reducing power consumption is a crucial issue for aerosol generators. In related technical examples, the standby power consumption of the aerosol generator is reduced by having the controller enter a sleep mode based on preset conditions or user settings. An external mechanical switch can wake the controller and switch it to operating mode. However, the controller still consumes a significant amount of power in sleep mode; and if the user leaves the aerosol generator idle after it has started heating without actively shutting it down, energy is wasted. Utility Model Content

[0003] This application aims to provide an aerosol generating device that can reduce the power consumption of the aerosol generating device and avoid energy waste.

[0004] This application provides an aerosol generating device, including a main body and a shell sleeved outside the main body. The aerosol generating device further includes a touch unit disposed on the main body and opposite to the inner wall surface of the shell, for sensing the touch state of the shell; the main body includes:

[0005] Battery cell;

[0006] A touch detection circuit is electrically connected to the battery cell and the touch unit respectively. The touch detection circuit includes a signal terminal, which is configured to output a first wake-up signal when the housing is in a touch state and to output a second wake-up signal when the housing is in a non-touch state.

[0007] The controller is electrically connected to the touch detection circuit. A first power supply branch is established between the battery cell and the controller. A switching circuit is provided in the first power supply branch, and the switching circuit is electrically connected to the touch detection circuit.

[0008] The touch detection circuit is further configured to output a first switch signal based on the first wake-up signal and transmit it to the switch circuit, thereby turning on the first power supply branch so that the battery cell provides power to the controller; the controller is configured to send a first control signal to the touch detection circuit after power-on to maintain the battery cell providing power to the controller, and sample the signal terminal. When the second wake-up signal is sampled continuously a preset number of times, the controller sends a second control signal to the touch detection circuit so that the touch detection circuit outputs a second switch signal based on the second control signal and the second wake-up signal and transmits it to the switch circuit, thereby turning off the first power supply branch so that the battery cell stops providing power to the controller.

[0009] In some embodiments, the touch unit includes electrodes and leads. The electrodes are disposed on the main body and are disposed opposite to the inner wall surface of the housing. The leads are electrically connected to the corresponding electrodes and the touch detection circuit.

[0010] In some embodiments, the electrodes are configured as strips or sheets.

[0011] In some embodiments, the touch detection circuit includes:

[0012] A touch detection chip is electrically connected to the battery cell and the touch unit respectively, and the touch detection chip includes the signal terminal;

[0013] The logic gate circuit is electrically connected to the battery cell, the touch detection chip, the controller, and the switching circuit, respectively. The logic gate circuit is configured to output a first switching signal based on a first wake-up signal and transmit it to the switching circuit, or to maintain the output of the first switching signal based on the first wake-up signal and the first control signal and transmit it to the switching circuit, or to output a second switching signal based on the second control signal and the second wake-up signal and transmit it to the switching circuit.

[0014] In some embodiments, the logic gate circuit includes an OR gate logic chip, the OR gate logic chip comprising:

[0015] The power supply terminal is electrically connected to the battery cell;

[0016] The grounding terminal is electrically connected to the reference ground of the aerosol generating device;

[0017] The first input terminal is electrically connected to the touch detection chip and is used to receive the first wake-up signal or the second wake-up signal.

[0018] The second input terminal is electrically connected to the controller and is used to receive the first control signal or the second control signal.

[0019] The output terminal is electrically connected to the switching circuit and is used to output the first switching signal or the second switching signal and transmit it to the switching circuit.

[0020] In some embodiments, the switching circuit includes:

[0021] A first switching unit is electrically connected to the touch detection circuit. The first switching unit is configured to be in an on state based on the first switching signal and in an off state based on the second switching signal.

[0022] The second switching unit is electrically connected between the battery cell and the controller, and is also electrically connected to the first switching unit. The second switching unit is configured to turn on when the first switching unit is in the on state, thereby turning on the first power supply branch, and to turn off when the first switching unit is in the off state, thereby turning off the first power supply branch.

[0023] In some embodiments, the first switching unit includes a first resistor, a first switching transistor, and a second resistor;

[0024] One end of the first resistor is electrically connected to the touch detection circuit, the other end of the first resistor is electrically connected to the first end of the first switching transistor, the second end of the first switching transistor is electrically connected to the reference ground of the aerosol generating device, the third end of the first switching transistor is electrically connected to the second switching unit, and the second resistor is electrically connected between the first end of the first switching transistor and the second end of the first switching transistor.

[0025] In some embodiments, the second switching unit includes a second switching transistor and a third resistor;

[0026] The first end of the second switching transistor is electrically connected to the battery cell, the second end of the second switching transistor is electrically connected to the first switching unit, the third end of the second switching transistor is electrically connected to the controller, and the third resistor is electrically connected between the first end of the second switching transistor and the second end of the second switching transistor.

[0027] In some embodiments, the main body further includes a receiving cavity for accommodating the aerosol-generated article, and an insertion detection circuit at least partially disposed in the receiving cavity, the insertion detection circuit being electrically connected to the controller for detecting the insertion state of the aerosol-generated article in the receiving cavity;

[0028] A second power supply branch is established between the battery cell and the insertion detection circuit. The second power supply branch is equipped with the switching circuit, so that the second power supply branch and the first power supply branch are simultaneously turned on or off.

[0029] In some embodiments, the insertion detection circuit includes:

[0030] The sensing unit is at least partially disposed in the accommodating cavity;

[0031] The sensing chip is electrically connected to the sensing unit, the switching circuit and the controller respectively. The sensing chip is configured to detect the insertion state of the aerosol-generated product in the accommodating cavity based on the sensing signal output by the sensing unit after power-on, and send it to the controller.

[0032] The beneficial effects of this application are as follows: A touch unit is disposed on the main body and positioned opposite to the inner wall surface of the housing to sense the touch state of the housing; a touch detection circuit is electrically connected to the battery cell and the touch unit respectively. The touch detection circuit includes a signal terminal configured to output a first wake-up signal when the housing is in a touch state and a second wake-up signal when the housing is in a non-touch state. It is also configured to output a first switch signal based on the first wake-up signal and transmit it to a switch circuit, thereby turning on the first power supply branch so that the battery cell provides power to the controller; the controller is configured to, after power-on, send a first control signal to the touch detection circuit to maintain the battery cell providing power to the controller, and sample the signal terminal. When a second wake-up signal is sampled a preset number of times, a second control signal is sent to the touch detection circuit, causing the touch detection circuit to output a second switch signal based on the second control signal and the second wake-up signal and transmit it to the switch circuit, thereby turning off the first power supply branch so that the battery cell stops providing power to the controller. Therefore, this application can reduce the power consumption of the aerosol generating device and avoid energy waste. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0034] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the structure of a touch detection circuit provided in an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of a switching circuit provided in an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of another aerosol generating device provided in the embodiments of this application;

[0038] Figure 5This is a schematic diagram of an insertion detection circuit provided in an embodiment of this application;

[0039] Figure 6 This is a circuit diagram of a touch unit and a touch detection circuit provided in an embodiment of this application;

[0040] Figure 7 This is a circuit diagram of a switching circuit and a controller provided in an embodiment of this application;

[0041] Figure 8 This is a circuit diagram of an insertion detection circuit provided in an embodiment of this application;

[0042] Figure 9 This is a schematic flowchart of a control method for an aerosol generating device provided in an embodiment of this application. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0045] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0046] Please see Figure 1 An aerosol generating device 100 provided in this application embodiment includes a main body 1 and a shell 2 sleeved outside the main body 1. The aerosol generating device 100 also includes a touch unit 3, which is arranged on the main body 1 and disposed opposite to the inner wall surface of the shell 2, for sensing the touch state of the shell 2.

[0047] The main body 1 includes: a battery cell 10; a touch detection circuit 20, which is electrically connected to the battery cell 10 and the touch unit 3 respectively. The touch detection circuit 20 includes a signal terminal 201, which is configured to output a first wake-up signal when the housing 2 is in a touch state and to output a second wake-up signal when the housing 2 is in a non-touch state; and a controller 30, which is electrically connected to the touch detection circuit 20. A first power supply branch is established between the battery cell 10 and the controller 30. A switch circuit 40 is provided in the first power supply branch and is electrically connected to the touch detection circuit 20.

[0048] The touch detection circuit 20 is further configured to output a first switch signal based on a first wake-up signal and transmit it to the switch circuit 40, thereby turning on the first power supply branch so that the battery cell 10 provides power to the controller 30. The controller 30 is configured to send a first control signal to the touch detection circuit 20 after power-on to maintain the battery cell 10 providing power to the controller 30, and to sample the signal terminal 201. When a second wake-up signal is sampled for a preset number of times, the controller 30 sends a second control signal to the touch detection circuit 20 so that the touch detection circuit 20 outputs a second switch signal based on the second control signal and the second wake-up signal and transmits it to the switch circuit 40, thereby turning off the first power supply branch so that the battery cell 10 stops providing power to the controller 30.

[0049] It is understandable that in the initial state, the aerosol generating device 100 is in a low-power mode, the switching circuit 40 is in the off state, thereby shutting off the first power supply branch. At this time, the controller 30 does not receive power, and the power consumption of the aerosol generating device 100 is the same as that of the touch detection circuit 20, which is ultra-low power consumption.

[0050] It should be noted that the touch states of housing 2 include: the user approaching housing 2, touching housing 2, and holding housing 2. When housing 2 is in a touch state, it indicates that a touch action has occurred; when housing 2 is in a non-touch state, it indicates that no touch action has occurred. Specifically, the user holding housing 2 occurs in scenarios where the user needs to hold housing 2 in their hand, such as when moving, playing with, or using the aerosol generating device 100.

[0051] In some embodiments, the touch unit 3 includes electrodes and leads. The electrodes are disposed on the main body 1 and are disposed opposite to the inner wall surface of the housing 2. The leads are electrically connected to the corresponding electrodes and the touch detection circuit 20.

[0052] Electrodes can sense touch by detecting changes in capacitance formed between the electrode and human skin. For example, when a user's hand touches or approaches the electrode, the capacitance changes, and the touch detection circuit 20 detects this change to perform touch detection.

[0053] The main body 1 includes a mounting bracket defining at least one cavity, in which the battery cell 10, touch detection circuit 20, and controller 30 are respectively disposed. For example, electrodes may be disposed on the outer surface of the mounting bracket and / or the battery cell 10.

[0054] In other embodiments, the touch unit 3 includes a touch sensor mounted on the main body 1 and disposed opposite to the inner wall surface of the housing 2, and electrically connected to the touch detection circuit 20. Types of touch sensors include, but are not limited to, resistive touch sensors, capacitive touch sensors, piezoresistive tactile sensors, piezoelectric touch sensors, optical / infrared / ultrasonic tactile sensors, and flexible tactile sensors.

[0055] Preferably, the touch unit 3 includes multiple electrodes to increase the touch detection area, thereby improving the reliability of touch detection. In the same touch detection area, multiple electrodes relative to a single electrode reduce the influence of stray capacitance, thereby improving the accuracy of touch detection.

[0056] Based on this, the electrodes are constructed in the form of strips or sheets.

[0057] As an example, the electrodes are constructed in the form of strips, with multiple strip-shaped electrodes wound around the outer surface of the main body 1 at different heights. As another example, the electrodes are constructed in the form of sheets, with multiple sheet-shaped electrodes arranged in a multi-layered, staggered pattern on the outer surface of the main body 1, or multiple sheet-shaped electrodes arranged on the outer surface of the main body 1 according to a predetermined trajectory, or multiple sheet-shaped electrodes symmetrically distributed on the outer surface of the main body 1.

[0058] It is understood that, while ensuring the detection effect of the touch unit 3, this application does not limit the number and arrangement of electrodes, and can make adaptive adjustments according to the actual structure of the main body 1. For example... Figure 6 As shown, the touch unit 3 includes electrodes TP1, TP2, TP3, TP4 and TP5, all of which are electrically connected to the touch detection circuit 20.

[0059] In some embodiments, please refer to Figure 2 The touch detection circuit 20 includes:

[0060] The touch detection chip 21 is electrically connected to the battery cell 10 and the touch unit 3 respectively. The touch detection chip 21 includes a signal terminal 201.

[0061] The logic gate circuit 22 is electrically connected to the battery cell 10, the touch detection chip 21, the controller 30 and the switch circuit 40 respectively. The logic gate circuit 22 is configured to output a first switch signal based on a first wake-up signal and transmit it to the switch circuit 40, or to maintain the output of the first switch signal based on the first wake-up signal and the first control signal and transmit it to the switch circuit 40, or to output a second switch signal based on the second control signal and the second wake-up signal and transmit it to the switch circuit 40.

[0062] In some embodiments, the logic gate circuit 22 includes an OR gate logic chip, which includes: a power supply terminal electrically connected to the battery cell 10; a ground terminal electrically connected to the reference ground of the aerosol generating device 100; a first input terminal electrically connected to the touch detection chip 21 for receiving a first wake-up signal or a second wake-up signal; a second input terminal electrically connected to the controller 30 for receiving a first control signal or a second control signal; and an output terminal electrically connected to the switch circuit 40 for outputting a first switch signal or a second switch signal and transmitting it to the switch circuit 40.

[0063] It is understood that logic gate circuit 22 may also include other logic gate circuits or chips such as AND gate, NOT gate, NAND gate, XOR NOT, XOR gate, and XNOR gate, and the technical solution claimed in this application can be implemented by adaptively changing the truth table and associated circuits of logic gate circuit 22. Figure 6 As shown, the touch detection chip 21 includes a touch detection chip U1 and its peripheral circuits (resistors R1 to R2 and capacitors C1 to C2), and the logic gate circuit 22 includes an OR gate logic chip U2.

[0064] Pin 3 of the touch detection chip U1 is the detection pin, electrically connected to electrodes TP1, TP2, TP3, TP4, and TP5, used to receive electrical signals converted from touch actions by electrodes TP1, TP2, TP3, TP4, and TP5. Pin 1 of the touch detection chip U1 is the signal pin 201, connected to gate logic chip U2 and control chip U3 (e.g., ...). Figure 7 As shown, the electrical connection is such that the signal terminal 201 is configured to output a first wake-up signal when the housing 2 is in a touch state and to output a second wake-up signal when the housing 2 is in a non-touch state.

[0065] The OR gate logic chip U2 includes a power supply terminal VCC, a ground terminal GND, a first input terminal OUT DET, a second input terminal PWRCTR, and an output terminal EN PWR. The power supply terminal VCC is electrically connected to the battery cell 10 to receive the battery cell voltage VCC_BAT; the ground terminal GND is electrically connected to the reference ground of the aerosol generating device 100; the first input terminal OUT DET is electrically connected to the signal terminal 201 of the touch detection chip U1 to receive a first wake-up signal or a second wake-up signal; the second input terminal PWR CTR is connected to the control terminal PWR CTR of the control chip U3 (e.g., ...). Figure 7 The circuit is electrically connected (as shown) to receive a first control signal or a second control signal; the output terminal ENPWR is electrically connected to the first switching unit 41 (as shown). Figure 7 As shown), it is used to output a first switch signal or a second switch signal and transmit it to the first switch unit 41.

[0066] In this embodiment, the first wake-up signal is a high-level signal, and the second wake-up signal is a low-level signal; the first control signal is a high-level signal, and the second control signal is a low-level signal; the first switch signal is a high-level signal, and the second switch signal is a low-level signal.

[0067] In this table, a binary digit "1" represents a high-level signal, and a binary digit "0" represents a low-level signal. The truth table for the OR gate logic chip U2 is as follows:

[0068] Table 1

[0069] 0 0 0 0 1 1 1 0 1 1 1 1

[0070] Please see Figure 3 The switching circuit 40 includes:

[0071] The first switch unit 41 is electrically connected to the touch detection circuit 20. The first switch unit 41 is configured to be in an on state based on a first switch signal and in an off state based on a second switch signal.

[0072] In some embodiments, the first switching unit 41 includes a first resistor, a first switching transistor, and a second resistor; one end of the first resistor is electrically connected to the touch detection circuit 20, the other end of the first resistor is electrically connected to the first end of the first switching transistor, the second end of the first switching transistor is electrically connected to the reference ground of the aerosol generating device 100, the third end of the first switching transistor is electrically connected to the second switching unit 42, and the second resistor is electrically connected between the first end of the first switching transistor and the second end of the first switching transistor.

[0073] The second switching unit 42 is electrically connected between the battery cell 10 and the controller 30, and is also electrically connected to the first switching unit 41. The second switching unit 42 is configured to turn on when the first switching unit 41 is in the on state, thereby turning on the first power supply branch, and to turn off when the first switching unit 41 is in the off state, thereby turning off the first power supply branch.

[0074] In some embodiments, the second switching unit 42 includes a second switching transistor and a third resistor; the first end of the second switching transistor is electrically connected to the battery cell 10, the second end of the second switching transistor is electrically connected to the first switching unit 41, the third end of the second switching transistor is electrically connected to the controller 30, and the third resistor is electrically connected between the first end of the second switching transistor and the second end of the second switching transistor.

[0075] like Figure 7 As shown, the controller 30 includes a control chip U3 and its peripheral circuits (resistors R6 to R8 and capacitors C3 to C5), the first switching unit 41 includes a first resistor R3, a first switching transistor Q1 and a second resistor R4, and the second switching unit 42 includes a second switching transistor Q2 and a third resistor R5.

[0076] Specifically, one end of the first resistor R3 is electrically connected to the output terminal EN PWR of the OR gate logic chip U2, and the other end of the first resistor R3 is electrically connected to the first terminal of the first switch Q1. The second terminal of the first switch Q1 is electrically connected to the reference ground of the aerosol generating device 100, and the third terminal of the first switch Q1 is electrically connected to the second terminal of the second switch Q2. The second resistor R4 is electrically connected between the first terminal and the second terminal of the first switch Q1. The first terminal of the second switch Q2 is electrically connected to the battery cell 10, and the second terminal of the second switch Q2 is electrically connected to the third terminal of the first switch Q1. The third terminal of the second switch Q2 is electrically connected to the power supply terminal of the control chip U3, and the third resistor R5 is electrically connected between the first terminal and the second terminal of the second switch Q2.

[0077] The first switch Q1 includes an NMOS transistor, and the second switch Q2 includes a PMOS transistor.

[0078] The control chip U3 can be a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), microcontroller, ARM (Acorn RISC Machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Furthermore, the control chip U3 can also be any conventional processor, controller, microcontroller, or state machine. The control chip U3 can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP, and / or any other such configuration.

[0079] In conclusion, Figure 6 and Figure 7 The working principle is as follows:

[0080] In the initial state, the aerosol generating device 100 is in a low-power mode, the second switch Q2 is turned off, and the control chip U3 is not powered.

[0081] When a user applies a touch action to the aerosol generating device 100, i.e., the housing 2 is in a touch state, electrodes TP1, TP2, TP3, TP4, and TP5 are used to convert the touch action into an electrical signal. The signal terminal 201 of the touch detection chip U1 outputs a first wake-up signal (high-level signal) to the first input terminal OUT DET of the OR gate logic chip U2. According to the truth table of the OR gate logic chip U2, at this time, regardless of whether the input signal of the second input terminal PWR CTR of the OR gate logic chip U2 is a high-level signal or a low-level signal, the output terminal EN PWR of the OR gate logic chip U2 outputs a first switch signal as a high-level signal. The first switch signal acts on the first switch unit 41, satisfying the conduction condition of the first switch transistor Q1. The first switch transistor Q1 conducts, thereby pulling down the voltage of the second terminal of the second switch transistor Q2 to the reference ground voltage of the aerosol generating device 100, satisfying the conduction condition of the second switch transistor Q2. The second switch transistor Q2 conducts, thereby conducting the first power supply branch so that the battery cell 10 provides power VCC_MCU to the control chip U3.

[0082] After the control chip U3 is powered on, its control terminal outputs a first control signal (high-level signal) to the second input terminal PWR CTR of the OR gate logic chip U2. According to the truth table of the OR gate logic chip U2, its output terminal EN PWR maintains the output of the first switch signal. At this time, the control chip U3 can be stably powered on, that is, the battery cell 10 maintains the power supply VCC_MCU to the control chip U3. At the same time, the sampling terminal of the control chip U3 samples the signal terminal 201 of the touch detection chip U1 (the first input terminal OUT DET of the OR gate logic chip U2) at a preset frequency. When the second wake-up signal (low-level signal) is sampled a preset number of times, it is determined that the housing 2 is in a non-touch state, triggering the sending of a second control signal (low-level signal) to the second input terminal PWR CTR of the OR gate logic chip U2. According to the truth table of the OR gate logic chip U2, the OR gate logic chip U2 outputs a second switch signal as a low-level signal from its output terminal EN PWR based on the second control signal and the second wake-up signal. The second switch signal acts on the first switch unit 41, which does not meet the conduction condition of the first switch tube Q1. The first switch tube Q1 is turned off. At this time, the conduction condition of the second switch tube Q2 is also not met, so the second switch tube Q2 is turned off. This shuts off the first power supply branch, causing the battery cell 10 to stop providing power VCC_MCU to the control chip U3. The aerosol generating device 100 then enters the low power mode again.

[0083] In addition, when the user uses the aerosol generating device 100 for suction, the user must apply a touch action to the aerosol generating device 100, that is, the housing 2 is in a touch state. The signal terminal 201 of the touch detection chip U1 outputs the first wake-up signal (high level signal) to the first input terminal OUT DET of the OR gate logic chip U2, and the control terminal of the control chip U3 outputs the first control signal (high level signal) to the second input terminal PWR CTR of the OR gate logic chip U2. According to the truth table of the OR gate logic chip U2, the output terminal EN PWR of the OR gate logic chip U2 maintains the output of the first switch signal. At this time, the control chip U3 can be stably powered on, that is, the battery cell 10 maintains the power supply VCC_MCU to the control chip U3. If the user leaves the aerosol generating device idle and does not actively shut it down, the signal terminal 201 of the touch detection chip U1 outputs a second wake-up signal (low-level signal) to the first input terminal OUT DET of the OR gate logic chip U2. The sampling terminal of the control chip U3 samples the signal terminal 201 of the touch detection chip U1 (the first input terminal OUT DET of the OR gate logic chip U2) at a preset frequency. When the second wake-up signal (low-level signal) is sampled a preset number of times, a second control signal (low-level signal) is triggered to be sent to the second input terminal PWR CTR of the OR gate logic chip U2. According to the truth table of the OR gate logic chip U2, the OR gate logic chip U2 outputs a second switch signal as a low-level signal from the output terminal EN PWR based on the second control signal and the second wake-up signal. The second switch signal acts on the first switch unit 41, which does not meet the conduction condition of the first switch tube Q1. The first switch tube Q1 is turned off. At this time, the conduction condition of the second switch tube Q2 is also not met, so the second switch tube Q2 is turned off. This shuts off the first power supply branch, causing the battery cell 10 to stop providing power VCC_MCU to the control chip U3. The aerosol generating device 100 then enters the low power mode again.

[0084] In any of the above embodiments, please refer to Figure 4 The main body 1 also includes a receiving cavity 101 for containing the aerosol-generated product, and an insertion detection circuit 50 at least partially disposed in the receiving cavity 101. The insertion detection circuit 50 is electrically connected to the controller 30 and is used to detect the insertion status of the aerosol-generated product in the receiving cavity 101. A second power supply branch is established between the battery cell 10 and the insertion detection circuit 50. A switching circuit 40 is provided in the second power supply branch, so that the second power supply branch and the first power supply branch are simultaneously turned on or off.

[0085] By inserting the detection circuit 50 to power on the housing 2 when it is in a touch state and power off when it is in a non-touch state, the power consumption of the aerosol generating device can be further reduced.

[0086] In some embodiments, please refer to Figure 5 The insertion detection circuit 50 includes:

[0087] The sensing unit 51 is at least partially disposed in the accommodating cavity 101.

[0088] The sensing chip 52 is electrically connected to the sensing unit 51, the switching circuit 40 and the controller 30 respectively. The sensing chip 52 is configured to detect the insertion state of the aerosol-generated article in the accommodating cavity 101 based on the sensing signal output by the sensing unit 51 after power-on, and send it to the controller 30.

[0089] The sensing unit 51 includes either capacitance detection or infrared detection.

[0090] like Figure 8 As shown, the sensing unit 51 includes electrode plate PAD1 and electrode plate PAD2, which are disposed opposite each other on the side wall of the accommodating cavity 101. It outputs corresponding sensing signals based on whether an aerosol generating article is inserted between electrode plate PAD1 and electrode plate PAD2 and the insertion depth of the aerosol generating article.

[0091] The sensing chip 52 includes a sensing chip U4 and its peripheral circuitry (capacitors C6 to C8 and resistors R9 to R10). The sensing terminals of the sensing chip U4 are electrically connected to electrode plates PAD1 and PAD2, respectively. The first output terminal IIC SDA of the sensing chip U4 is electrically connected to the first data terminal IIC SDA of the control chip U3. The second output terminal IIC SCL of the sensing chip U4 is electrically connected to the second data terminal IIC SCL of the control chip U3. The power supply terminal of the sensing chip U4 is electrically connected to the power supply terminal VCC_MCU of the control chip U3.

[0092] The aerosol generating device provided in this application uses a touch unit disposed on the main body and positioned opposite to the inner wall surface of the housing to sense the touch state of the housing. A touch detection circuit is electrically connected to both the battery cell and the touch unit. The touch detection circuit includes a signal terminal configured to output a first wake-up signal when the housing is in a touch state and a second wake-up signal when the housing is in a non-touch state. It is also configured to output a first switch signal based on the first wake-up signal and transmit it to a switch circuit, thereby turning on the first power supply branch so that the battery cell provides power to the controller. The controller is configured to, after power-on, send a first control signal to the touch detection circuit to maintain the battery cell providing power to the controller, and sample the signal terminal. When a second wake-up signal is sampled a preset number of times, the controller sends a second control signal to the touch detection circuit, causing the touch detection circuit to output a second switch signal based on the second control signal and the second wake-up signal and transmit it to the switch circuit, thereby turning off the first power supply branch so that the battery cell stops providing power to the controller. Therefore, this application can reduce the power consumption of the aerosol generating device and avoid energy waste.

[0093] Please see Figure 9 This application provides a control method for an aerosol generating device, applied to the controller 30 in any of the above-described aerosol generating device 100 embodiments. The control method includes:

[0094] Step S11: After power-on, a first control signal is sent to the touch detection circuit 20 to maintain the battery cell 10 providing power to the controller 30.

[0095] In step S12, signal terminal 201 sends a second control signal to touch detection circuit 20 when the second wake-up signal is sampled a preset number of times. This causes touch detection circuit 20 to output a second switch signal based on the second control signal and the second wake-up signal and transmit it to switch circuit 40, thereby turning off the first power supply branch and causing battery cell 10 to stop providing power to controller 30.

[0096] Therefore, when the housing 2 is in a non-touch state, shutting off the first power supply branch causes the battery cell 10 to stop providing power to the controller 30, thereby reducing the power consumption of the aerosol generating device 100.

[0097] In some embodiments, the control method further includes: determining that the housing 2 is in a non-touch state when a second wake-up signal is sampled a preset number of times.

[0098] Based on this, a second control signal is sent to the touch detection circuit 20, and signal terminal 201 continues to be used.

[0099] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An aerosol generating device, comprising a main body and a shell sleeved outside the main body, characterized in that, The aerosol generating device further includes a touch unit, disposed on the main body and opposite to the inner wall surface of the housing, for sensing the touch state of the housing; the main body includes: Battery cell; A touch detection circuit is electrically connected to the battery cell and the touch unit respectively. The touch detection circuit includes a signal terminal, which is configured to output a first wake-up signal when the housing is in a touch state and to output a second wake-up signal when the housing is in a non-touch state. The controller is electrically connected to the touch detection circuit. A first power supply branch is established between the battery cell and the controller. A switching circuit is provided in the first power supply branch, and the switching circuit is electrically connected to the touch detection circuit. The touch detection circuit is further configured to output a first switch signal based on the first wake-up signal and transmit it to the switch circuit, thereby turning on the first power supply branch so that the battery cell provides power to the controller; the controller is configured to send a first control signal to the touch detection circuit after power-on to maintain the battery cell providing power to the controller, and sample the signal terminal. When the second wake-up signal is sampled continuously a preset number of times, the controller sends a second control signal to the touch detection circuit so that the touch detection circuit outputs a second switch signal based on the second control signal and the second wake-up signal and transmits it to the switch circuit, thereby turning off the first power supply branch so that the battery cell stops providing power to the controller.

2. The aerosol generating apparatus according to claim 1, characterized in that, The touch unit includes electrodes and leads. The electrodes are arranged on the main body and are opposite to the inner wall surface of the housing. The leads are electrically connected to the corresponding electrodes and the touch detection circuit.

3. The aerosol generating apparatus according to claim 2, characterized in that, The electrodes are configured as strips or sheets.

4. The aerosol generating apparatus according to claim 1, characterized in that, The touch detection circuit includes: A touch detection chip is electrically connected to the battery cell and the touch unit respectively, and the touch detection chip includes the signal terminal; The logic gate circuit is electrically connected to the battery cell, the touch detection chip, the controller, and the switching circuit, respectively. The logic gate circuit is configured to output a first switching signal based on a first wake-up signal and transmit it to the switching circuit, or to maintain the output of the first switching signal based on the first wake-up signal and the first control signal and transmit it to the switching circuit, or to output a second switching signal based on the second control signal and the second wake-up signal and transmit it to the switching circuit.

5. The aerosol generating apparatus according to claim 4, characterized in that, The logic gate circuit includes an OR gate logic chip, and the OR gate logic chip includes: The power supply terminal is electrically connected to the battery cell; The grounding terminal is electrically connected to the reference ground of the aerosol generating device; The first input terminal is electrically connected to the touch detection chip and is used to receive the first wake-up signal or the second wake-up signal. The second input terminal is electrically connected to the controller and is used to receive the first control signal or the second control signal. The output terminal is electrically connected to the switching circuit and is used to output the first switching signal or the second switching signal and transmit it to the switching circuit.

6. The aerosol generating apparatus according to claim 1, characterized in that, The switching circuit includes: A first switching unit is electrically connected to the touch detection circuit. The first switching unit is configured to be in an on state based on the first switching signal and in an off state based on the second switching signal. The second switching unit is electrically connected between the battery cell and the controller, and is also electrically connected to the first switching unit. The second switching unit is configured to turn on when the first switching unit is in the on state, thereby turning on the first power supply branch, and to turn off when the first switching unit is in the off state, thereby turning off the first power supply branch.

7. The aerosol generating apparatus according to claim 6, characterized in that, The first switching unit includes a first resistor, a first switching transistor, and a second resistor; One end of the first resistor is electrically connected to the touch detection circuit, the other end of the first resistor is electrically connected to the first end of the first switching transistor, the second end of the first switching transistor is electrically connected to the reference ground of the aerosol generating device, the third end of the first switching transistor is electrically connected to the second switching unit, and the second resistor is electrically connected between the first end of the first switching transistor and the second end of the first switching transistor.

8. The aerosol generating apparatus according to claim 6, characterized in that, The second switching unit includes a second switching transistor and a third resistor; The first end of the second switching transistor is electrically connected to the battery cell, the second end of the second switching transistor is electrically connected to the first switching unit, the third end of the second switching transistor is electrically connected to the controller, and the third resistor is electrically connected between the first end of the second switching transistor and the second end of the second switching transistor.

9. The aerosol generating apparatus according to any one of claims 1-8, characterized in that, The main body also includes a receiving cavity for accommodating the aerosol-generated article, and an insertion detection circuit at least partially disposed in the receiving cavity. The insertion detection circuit is electrically connected to the controller and is used to detect the insertion state of the aerosol-generated article in the receiving cavity. A second power supply branch is established between the battery cell and the insertion detection circuit. The second power supply branch is equipped with the switching circuit, so that the second power supply branch and the first power supply branch are simultaneously turned on or off.

10. The aerosol generating apparatus according to claim 9, characterized in that, The insertion detection circuit includes: The sensing unit is at least partially disposed in the accommodating cavity; The sensing chip is electrically connected to the sensing unit, the switching circuit and the controller respectively. The sensing chip is configured to detect the insertion state of the aerosol-generated product in the accommodating cavity based on the sensing signal output by the sensing unit after power-on, and send it to the controller.

Images