Aerosol-generating device
The magnetic field changes are detected by magnetic components and Hall devices to generate reset signals, which solves the system reset problem of the aerosol generation device without physical buttons, and achieves the effect of simplifying circuit design and reducing costs.
Patent Information
- Application Number
- CN202420697923.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing aerosol generation device deletes physical buttons when pursuing appearance design, resulting in complex system design and lack of reset methods.
Magnetic components and Hall devices are used to detect magnetic field changes, and reset control signals are generated through signal processing circuits to achieve system reset without physical buttons.
Without adding physical buttons, the circuit design is simplified, the cost is reduced, and the system reset of the aerosol generation device is realized.
Smart Images
Figure CN222303126U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device. Background Art
[0002] Smoking articles such as cigarettes and cigars burn tobacco to produce smoke during use. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. Examples of such products are so-called heat-not-burn products, which release compounds by heating tobacco rather than burning it.
[0003] In existing aerosol setting devices, in order to meet higher appearance design requirements, the physical buttons on the device are usually deleted. The resulting problems are that, on the one hand, the system design becomes complicated, and on the other hand, there is no physical button that can be used to reset the system. Utility Model Content
[0004] The present application provides an aerosol generating device, which aims to achieve system reset without physical buttons.
[0005] On the one hand, the present application provides an aerosol generating device, comprising:
[0006] A magnetic element for generating a magnetic field; the magnetic element is configured to be movable relative to the housing of the aerosol generating device based on user operation;
[0007] A Hall device is configured to detect a change in magnetic field caused by the approach or distance of the magnetic element to output a corresponding level signal;
[0008] A signal processing circuit configured to generate a reset control signal when the generation frequency of the level signal per unit time reaches a predetermined value;
[0009] The reset circuit is configured to generate a reset signal according to the reset control signal to reset the system of the aerosol generating device.
[0010] In one example, it further includes a movable part that can move relative to the shell of the aerosol generating device, and the magnetic element is arranged on the movable part.
[0011] In one example, a heating chamber for removably receiving an aerosol-generating article is disposed within the housing of the aerosol-generating device;
[0012] The movable part comprises a sliding cover which is slidable relative to the housing of the aerosol generating device, and the sliding cover is configured to cover or open the opening of the heating chamber.
[0013] In one example, a control unit is further included, and the control unit is configured to obtain the level signal to determine whether the sliding cover covers or opens the opening of the heating chamber.
[0014] In one example, the movable member is movable between a first position and a second position relative to a housing of the aerosol generating device, and the Hall device is disposed in or on the housing and close to the first position or the second position.
[0015] In one example, the signal processing circuit includes:
[0016] A first shaping circuit is configured to perform shaping processing on the level signal to generate a first shaped signal;
[0017] an inverter, configured to invert the level signal to output an inverted signal of the level signal;
[0018] A second shaping circuit is configured to perform shaping processing on the inverted signal of the level signal to generate a second shaped signal;
[0019] The logic processing circuit is configured to perform logic processing on the first shaped signal and the second shaped signal to generate a reset control signal.
[0020] In one example, the inverter includes a first switch tube and a second switch tube, the first electrode end of the first switch tube is electrically connected to a power supply, the second electrode end of the first switch tube is electrically connected to the second electrode end of the second switch tube, and the connection point between the two constitutes the output end of the inverter, the first electrode end of the second switch tube is grounded, the control end of the first switch tube is electrically connected to the control end of the second switch tube, and the connection point between the two constitutes the input end of the inverter.
[0021] In one example, the first shaping circuit or the second shaping circuit includes a delay control circuit and a Schmitt trigger;
[0022] The delay control circuit performs delay control on the input signal to obtain a delayed signal; the Schmitt trigger performs hysteresis processing on the delayed signal and then outputs a shaped signal.
[0023] In one example, the delay control circuit includes a diode, a resistor and a capacitor;
[0024] The anode end of the diode is electrically connected to one end of the resistor, and the connection point of the two constitutes the input end of the delay control circuit; the cathode end of the diode is electrically connected to the other end of the resistor and one end of the capacitor, and the connection point of the three constitutes the output end of the delay control circuit; the other end of the capacitor is grounded;
[0025] The input end of the delay control circuit is used to receive the input signal, and the output end of the delay control circuit is electrically connected to the input end of the Schmitt trigger.
[0026] In one example, the logic processing circuit is configured to generate the reset control signal when the first shaped signal and the second shaped signal are signals of the same level.
[0027] Another aspect of the present application provides an aerosol generating device, comprising:
[0028] a housing having a heating chamber disposed therein for removably receiving an aerosol-generating article;
[0029] a sliding cover, configured to slide relative to the housing between a first position and a second position, for covering or opening the opening of the heating chamber;
[0030] A detection component, used for detecting the frequency of the sliding cover being in the first position or the second position during continuous sliding within a unit time;
[0031] The circuit is configured to generate a reset signal based on the magnitude of the frequency to reset the system of the aerosol generating device.
[0032] The aerosol generating device provided in the present application detects the magnetic field generated by the magnetic element through a Hall device, and generates a reset signal after a series of processing on the level signal output by the Hall device, so as to reset the system of the aerosol generating device; thereby, the system reset is achieved without a physical button, the circuit design is simple, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0034] Figure 1 It is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present application;
[0035] Figure 2 is a schematic diagram of the specific structure of the aerosol generating device provided in the embodiment of the present application;
[0036] Figure 3 is a schematic diagram of a sliding cover device provided in an embodiment of the present application;
[0037] Figure 4 is a cross-sectional schematic diagram of a sliding cover device provided in an embodiment of the present application;
[0038] Figure 5 It is a specific circuit diagram provided in the implementation mode of this application. DETAILED DESCRIPTION
[0039] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "electrically connected to" another element, it can be directly electrically connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.
[0040] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.
[0041] Figure 1 It is a brief structural diagram of the aerosol generating device provided in an embodiment of the present application.
[0042] like Figure 1 As shown, the aerosol generating device comprises:
[0043] A heating chamber A is provided in which an aerosol-generating article B is removably received; the aerosol-generating article B is preferably a tobacco-containing material that releases volatile compounds from a matrix when heated; or it may be a non-tobacco material.
[0044] The heating element 11 can be inserted into the aerosol generating product B for heating when the aerosol generating product B is received in the heating chamber A to generate aerosol.
[0045] It should be noted that the heating method of the heating element 11 includes but is not limited to resistance heating, electromagnetic heating, infrared heating, and air heating. The shape of the heating element 11 includes but is not limited to needle-shaped, pin-shaped, or thin sheet-shaped.
[0046] It should also be noted that Figure 1 Different from the examples, in other examples, the heating element 11 is configured to heat around at least a portion of the aerosol generating article B, which is commonly known as circumferential heating or peripheral heating, etc., which is also feasible.
[0047] The battery cell 12 is used for supplying power; the battery cell 12 may be a rechargeable battery cell or a disposable battery cell.
[0048] The circuit 13 is used to control the aerosol generating device; for example, to control the battery cell 12 to provide power to the heating element 11 .
[0049] In one example, the circuit 13 includes a control unit. The control unit is configured as a hardware component that controls the overall operation of the aerosol generating device. The control unit may include at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microcontroller and a memory in which a program executable in the microcontroller is stored. It will be understood by those skilled in the art that the processor may be implemented in other forms of hardware.
[0050] Understandably, Figure 1 Only the components related to this embodiment are shown in the figure. A person skilled in the art should understand that the aerosol generating device may also include other common components besides those shown in the figure.
[0051] Figure 2-Figure 4 It is a schematic diagram of a sliding cover device provided in an embodiment of the present application.
[0052] like Figure 2-Figure 4 As shown, the sliding cover device 100 includes a base 110, a sliding cover 120 and a sliding assembly.
[0053] The base 110 is provided with an opening 111 communicating with the heating chamber A. The base 110 may be a part of the housing of the aerosol generating device, or may be a component disposed in or on the housing of the aerosol generating device.
[0054] The slide cover 120 is disposed on the base 110 and can slide relative to the base 110 based on user operation to cover or open the opening 111. That is, the sliding stroke of the slide cover 120 relative to the base 110 includes a first position covering the opening 111 and a second position opening the opening 111.
[0055] The sliding assembly includes a slider 122 disposed on the base 110 and a slide rail 121 disposed on the slide cover 120 . The slide cover 120 slides relative to the base 110 through the cooperation between the slide rail 121 and the slider 122 .
[0056] In a further implementation, a magnetic element 123 is further provided on the slide cover 120, and the magnetic element 123 includes a permanent magnet or an electromagnet that can generate a magnetic field. When the slide cover 120 slides relative to the base 110, the magnetic element 123 can slide together with the slide cover 120. A component for detecting the change in the magnetic field generated by the approach or distance of the magnetic element 123 to output a level signal, such as a Hall device, is provided in the aerosol generating device. The Hall device can be provided in or on the housing of the aerosol generating device, and the Hall device can be provided near the first position of the aforementioned covering opening 111 or the second position of the opening 111.
[0057] It is understandable that in other variations, the movable part is not limited to the aforementioned sliding cover 120, and the magnetic element 123 can also be arranged on other movable parts that can move relative to the shell of the aerosol generating device, and the movable mode is not limited to the aforementioned sliding, for example, it can be rotation.
[0058] Figure 5 It is a specific circuit diagram of the aerosol generating device provided in the embodiment of the present application.
[0059] like Figure 5 As shown, U2 in the figure is a Hall device, and the Hall device U2 is configured to detect the change in magnetic field caused by the approach or distance of the magnetic element 123 to output a corresponding level signal. For example, the Hall device U2 is set near the second position of the aforementioned open opening 111. When the sliding cover 120 slides to the first position, the magnetic element is away from the Hall device U2, and the level signal output by the Hall device U2 is a high level; when the sliding cover 120 slides to the second position, the magnetic element is close to the Hall device U2, and the level signal output by the Hall device U2 is a low level.
[0060] In one example, the control unit can obtain the level signal output by the Hall device U2 through its port (shown as GPIO in the figure), so as to determine whether the sliding cover 120 covers or opens the opening 111 .
[0061] In one example, the aerosol generating device includes a signal processing circuit and a reset circuit, wherein the signal processing circuit is configured to generate a reset control signal when the generation frequency of the level signal output by the Hall device U2 per unit time reaches a predetermined value; the reset circuit is configured to generate a reset signal according to the reset control signal to reset the system of the aerosol generating device.
[0062] In one example, the signal processing circuit includes a first shaping circuit, an inverter, a second shaping circuit, and a logic processing circuit.
[0063] F1 in the figure is an inverter, and the inverter F1 is configured to invert the level signal output by the Hall device U2 to output the inverted signal of the level signal. Specifically, the inverter F1 includes a first switch tube Q1 and a second switch tube Q2, the first electrode end of the first switch tube Q1 is electrically connected to the power supply, the second electrode end of the first switch tube Q1 is electrically connected to the second electrode end of the second switch tube Q2, and the connection point between the two constitutes the output end of the inverter F1, the first electrode end of the second switch tube Q2 is grounded, and the control end of the first switch tube Q1 is electrically connected to the control end of the second switch tube Q2, and the connection point between the two constitutes the input end of the inverter F1. In the figure, the first switch tube Q1 adopts a PMOS tube, the source of the PMOS tube is the first electrode end of the first switch tube Q1, the drain of the PMOS tube is the second electrode end of the first switch tube Q1, and the gate of the PMOS tube is the control end of the first switch tube Q1. The second switch tube Q2 is an NMOS tube, the source of the NMOS tube is the first electrode terminal of the second switch tube Q2, the drain of the NMOS tube is the second electrode terminal of the second switch tube Q2, and the gate of the NMOS tube is the control terminal of the second switch tube Q2.
[0064] Y1 in the figure is a first shaping circuit, which is configured to shape the level signal output by the Hall device U2 to generate a first shaped signal; Y2 in the figure is a second shaping circuit, which is configured to shape the inverted signal output by the inverter F1 to generate a second shaped signal.
[0065] Among them, the first shaping circuit Y1 includes a first delay control circuit and a first Schmitt trigger U3; the first delay control circuit performs delay control on the input signal, that is, the level signal output by the Hall device U2, to obtain a delay signal; the first Schmitt trigger U3 performs hysteresis processing on the delay signal output by the first delay control circuit and then outputs a first shaped signal. Specifically, the first delay control circuit includes a diode D2, a resistor R3 and a capacitor C3; the anode end of the diode D2 is electrically connected to one end of the resistor R3 and the connection point of the two constitutes the input end of the first delay control circuit, the cathode end of the diode D2 is electrically connected to the other end of the resistor R3 and one end of the capacitor C3 and the connection point of the three constitutes the output end of the first delay control circuit, and the other end of the capacitor C3 is grounded; the input end of the first delay control circuit is used to receive the input signal, the output end of the first delay control circuit is electrically connected to the input end of the first Schmitt trigger U3, and the output end of the first Schmitt trigger U3 outputs the first shaped signal. In actual operation, the delay time of the first delay control circuit can be changed by changing the values of the resistor R3 and the capacitor C3.
[0066] Among them, the second shaping circuit Y2 includes a second delay control circuit and a second Schmitt trigger U1; the second delay control circuit performs delay control on the input signal, that is, the inverted signal output by the inverter F1, to obtain a delayed signal; the second Schmitt trigger U1 performs hysteresis processing on the delayed signal output by the second delay control circuit and outputs a second shaped signal. Specifically, the second delay control circuit includes a diode D1, a resistor R1 and a capacitor C1; the anode end of the diode D1 is electrically connected to one end of the resistor R1 and the connection point of the two constitutes the input end of the second delay control circuit, the cathode end of the diode D1 is electrically connected to the other end of the resistor R1 and one end of the capacitor C1 and the connection point of the three constitutes the output end of the second delay control circuit, and the other end of the capacitor C1 is grounded; the input end of the second delay control circuit is used to receive the input signal, the output end of the second delay control circuit is electrically connected to the input end of the second Schmitt trigger U1, and the output end of the second Schmitt trigger U1 outputs the second shaped signal. In actual operation, the delay time of the second delay control circuit can be changed by changing the values of the resistor R1 and the capacitor C1.
[0067] U4 in the figure is a logic processing circuit, which is configured to perform logic processing on the first shaped signal output by the first shaped circuit Y1 and the second shaped signal output by the second shaped circuit Y2 to generate a reset control signal. The logic processing circuit U4 in the figure uses a NAND gate, which outputs a valid reset control signal, i.e., a low-level signal, when both the first shaped signal and the second shaped signal are at a high level.
[0068] U5 in the figure is a reset circuit, and the reset circuit U5 is configured to generate a reset signal according to the reset control signal output by the logic processing circuit U4, so as to reset the system of the aerosol generating device, for example, to power on and reset the control unit of the aerosol generating device. The reset circuit U5 in the figure uses a cell management chip, and when the QON pin of the cell management chip receives a continuous low-level signal, for example, for 10 seconds, the VSYS pin of the cell management chip can output a power-on reset signal.
[0069] The following Figure 5 The working process is described as follows:
[0070] When the slide cover 120 slides to the first position, the slide cover 120 covers the opening 111, that is, closes the heating chamber A. At this time, the magnetic element is away from the Hall device U2, the level signal output by the Hall device U2 is a high level, and the level signal output by the inverter F1 is a low level. The first shaping circuit Y1 outputs a high level after shaping, and the second shaping circuit Y2 outputs a low level after shaping. The logic processing circuit U4 performs logic processing and outputs a high level, and the control unit of the aerosol generating device operates normally without resetting. The control unit can obtain the level signal output by the Hall device U2 through the GPIO port, thereby determining that the slide cover 120 covers the heating chamber A.
[0071] When the slide cover 120 slides to the second position, the slide cover 120 opens the opening 111, that is, opens the heating chamber A. At this time, the magnetic element is close to the Hall device U2, the level signal output by the Hall device U2 is a low level, and the level signal output by the inverter F1 is a high level. The first shaping circuit Y1 outputs a low level after shaping, and the second shaping circuit Y2 outputs a high level after shaping. The logic processing circuit U4 performs logic processing and outputs a high level, and the control unit of the aerosol generating device operates normally without resetting. The control unit can obtain the level signal output by the Hall device U2 through the GPIO port, thereby determining that the slide cover 120 opens the heating chamber A.
[0072] When the slide cover 120 slides repeatedly between the first position and the second position at a certain frequency, the capacitor C1 in the first delay control circuit and the capacitor C2 in the second delay control circuit are charged and discharged alternately. When charging, the capacitor is mainly charged by forward conduction of the diode; when discharging, the capacitor is discharged to the ground through the resistor, and the charging speed is fast and the discharging speed is slow. Therefore, by adjusting the delay time of the first delay control circuit and the second delay control circuit, and controlling the frequency of the slide cover 120 sliding repeatedly between the first position and the second position, the first shaping circuit Y1 and the second shaping circuit Y2 can be shaped to output a high level at the same time, while the logic processing circuit U4 outputs a low level. When the duration of the logic processing circuit U4 outputting a low level reaches 10s, the reset circuit U5 outputs a power-on reset signal, so that the control unit of the aerosol generating device is powered on and reset.
[0073] In the above implementation, the detection component composed of the magnetic element and the Hall device U2 is used to detect the frequency of the sliding cover 120 being in the first position or the second position during the continuous sliding process per unit time, so that the circuit 13 generates a reset signal based on the magnitude of the frequency to reset the system of the aerosol generating device. It can be understood that the detection component is not limited to the above situation, for example, the detection component can be implemented by a mechanical switch and its corresponding circuit.
[0074] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.
Claims
1. An aerosol generating device, characterized in that: include: A magnetic element for generating a magnetic field; The magnetic element is configured to be movable relative to the housing of the aerosol generating device based on user operation; A Hall device is configured to detect a change in magnetic field caused by the approach or distance of the magnetic element to output a corresponding level signal; A signal processing circuit configured to generate a reset control signal when the generation frequency of the level signal per unit time reaches a predetermined value; The reset circuit is configured to generate a reset signal according to the reset control signal to reset the system of the aerosol generating device.
2. The aerosol generating device according to claim 1, characterized in that: It also includes a movable part that can move relative to the shell of the aerosol generating device, and the magnetic element is arranged on the movable part.
3. The aerosol generating device according to claim 2, characterized in that: The housing of the aerosol generating device has a heating chamber disposed therein for removably receiving an aerosol generating article; The movable part comprises a sliding cover which is slidable relative to the housing of the aerosol generating device, and the sliding cover is configured to cover or open the opening of the heating chamber.
4. The aerosol generating device according to claim 3, characterized in that: A control unit is also included, and the control unit is configured to obtain the level signal to determine whether the sliding cover covers or opens the opening of the heating chamber.
5. The aerosol generating device according to claim 2, characterized in that: The movable member is movable between a first position and a second position relative to a shell of the aerosol generating device, and the Hall device is arranged in or on the shell and is arranged close to the first position or the second position.
6. The aerosol generating device according to claim 1, characterized in that: The signal processing circuit comprises: A first shaping circuit is configured to perform shaping processing on the level signal to generate a first shaped signal; an inverter, configured to invert the level signal to output an inverted signal of the level signal; A second shaping circuit is configured to perform shaping processing on the inverted signal of the level signal to generate a second shaped signal; The logic processing circuit is configured to perform logic processing on the first shaped signal and the second shaped signal to generate a reset control signal.
7. The aerosol generating device according to claim 6, characterized in that: The inverter includes a first switch tube and a second switch tube, wherein a first electrode end of the first switch tube is electrically connected to a power supply, a second electrode end of the first switch tube is electrically connected to a second electrode end of the second switch tube, and a connection point between the two constitutes an output end of the inverter, a first electrode end of the second switch tube is grounded, a control end of the first switch tube is electrically connected to a control end of the second switch tube, and a connection point between the two constitutes an input end of the inverter.
8. The aerosol generating device according to claim 6, characterized in that: The first shaping circuit or the second shaping circuit comprises a delay control circuit and a Schmitt trigger; The delay control circuit performs delay control on the input signal to obtain a delayed signal; the Schmitt trigger performs hysteresis processing on the delayed signal and then outputs a shaped signal.
9. The aerosol generating device according to claim 8, characterized in that: The delay control circuit includes a diode, a resistor and a capacitor; The anode end of the diode is electrically connected to one end of the resistor, and the connection point of the two constitutes the input end of the delay control circuit; the cathode end of the diode is electrically connected to the other end of the resistor and one end of the capacitor, and the connection point of the three constitutes the output end of the delay control circuit; the other end of the capacitor is grounded; The input end of the delay control circuit is used to receive the input signal, and the output end of the delay control circuit is electrically connected to the input end of the Schmitt trigger.
10. The aerosol generating device according to claim 6, characterized in that: The logic processing circuit is configured to generate the reset control signal when the first shaped signal and the second shaped signal are signals of the same level.
11. An aerosol generating device, characterized in that: include: a housing having a heating chamber disposed therein for removably receiving an aerosol-generating article; a sliding cover, configured to slide relative to the housing between a first position and a second position, for covering or opening the opening of the heating chamber; A detection component, used for detecting the frequency of the sliding cover being in the first position or the second position during continuous sliding within a unit time; The circuit is configured to generate a reset signal based on the magnitude of the frequency to reset the system of the aerosol generating device.