Heating control circuit and aerosol generating device

Abstract

The utility model relates to a heating control circuit and an aerosol generating device, and the heating control circuit comprises a battery cell which is used for providing power supply; the heating element unit comprises a first heating element and a second heating element which are connected in series; the microphone controller is electrically connected between the battery cell and the heating element unit, the microphone controller comprises a positive electrode pin, a negative electrode pin and a driving pin, the driving pin is connected with the first end of the first heating element, and the negative electrode pin is connected with the fourth end of the second heating element; wherein the microphone controller is further provided with at least one electric connection point, the second end of the first heating element and the third end of the second heating element are connected in series through the electric connection point, and the microphone controller is configured to respond to the suction action of a user to output driving voltage so as to drive the first heating element and the second heating element to heat at the same time. Therefore, at least one electric connection point is provided through the microphone controller, and miniaturization of the aerosol generating device product is facilitated.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to a heating control circuit and an aerosol generation device. Background Technology

[0002] The heating control circuit is a crucial component of an aerosol generating device, responsible for heating the atomized aerosol generating matrix to produce aerosols. In some exemplary prior art, a heating control circuit is provided, comprising two heating wires connected in series and a microphone controller. The microphone controller is connected to the heating wires via at least one electrical connection point on a circuit board, driving the two series-connected heating wires to heat simultaneously. However, the at least one electrical connection point on the circuit board occupies space, increasing the size of the aerosol generating device. Utility Model Content

[0003] The purpose of this application is to provide a heating control circuit and an aerosol generating device, which is beneficial for the miniaturization of aerosol generating device products.

[0004] At least one embodiment of this application provides a heating control circuit, the heating control circuit comprising:

[0005] Battery cells are used to provide power.

[0006] The heating element unit includes a first heating element and a second heating element connected in series; the first heating element includes a first end and a second end opposite to each other, and the second heating element includes a third end and a fourth end opposite to each other;

[0007] A microphone controller is electrically connected between the battery cell and the heating element unit. The microphone controller includes a positive pin, a negative pin, and a drive pin. The drive pin is connected to the first end of the first heating element, and the negative pin is connected to the fourth end of the second heating element.

[0008] The microphone controller also provides at least one electrical connection point, through which the second end of the first heating element and the third end of the second heating element are connected in series. The microphone controller is configured to output a drive voltage in response to the user's suction action to drive the first heating element and the second heating element to heat up simultaneously.

[0009] As an example, the positive pin is connected to the positive terminal of the battery cell, the negative pin is also connected to the negative terminal of the battery cell, and the drive pin is connected to the first end of the first heating element through an electrical connection point.

[0010] As an example, the microphone controller provides four electrical connection points. The first electrical connection point is connected to the drive pin and the first end of the first heating element, the second electrical connection point is connected to the second end of the first heating element and the third electrical connection point, the third electrical connection point is also connected to the third end of the second heating element, and the fourth electrical connection point is connected to the fourth end of the second heating element and the negative pin.

[0011] As an example, the microphone controller is also equipped with LED pins.

[0012] As an example, the resistance values ​​of the first heating element and the second heating element are equal.

[0013] As an example, the resistance values ​​of the first heating element and the second heating element are proportional.

[0014] At least one embodiment of this application provides an aerosol generating apparatus, including a heating control circuit as described in any embodiment of this application.

[0015] As an example, an indicator circuit is also included, electrically connected to the LED pin of the microphone controller, the indicator circuit being configured to illuminate in response to the user's sucking action.

[0016] As an example, the system also includes a housing that defines an airflow channel within which the heating element unit is located.

[0017] As an example, the housing defines an airflow channel, and the first heating element and the second heating element are arranged vertically within the airflow channel; or

[0018] The housing defines airflow channels corresponding to the first heating element and the second heating element, and the first heating element and the second heating element are arranged in a left-right arrangement.

[0019] In the heating control circuit and aerosol generating device provided in the above embodiments, at least one electrical connection point is provided by the microphone controller, and the second end of the first heating element and the third end of the second heating element are connected in series through the electrical connection point. Therefore, it is beneficial to the miniaturization of the aerosol generating device product. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art 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.

[0021] Figure 1 This is a schematic diagram of the structure of a heating control circuit provided in some embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the heating control circuit provided in some other embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the heating control circuit provided in some embodiments of this application;

[0024] Figure 4 This is a circuit diagram of a heating control circuit provided in some embodiments of this application;

[0025] Figure 5 This is a circuit diagram of a heating control circuit provided in some other embodiments of this application;

[0026] Figure 6 This is a schematic diagram of the structure of an aerosol generating apparatus provided in some embodiments of this application. Detailed Implementation

[0027] 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 a part of the embodiments of this application, and not all of the 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.

[0028] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units 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.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] Please refer to Figures 1 to 2 This application provides an embodiment of a heating control circuit 1, which includes: a battery cell 10 for providing power supply; a heating element unit 20 including a first heating element 21 and a second heating element 22 connected in series; the first heating element 21 includes a first end and a second end opposite to each other, and the second heating element 22 includes a third end and a fourth end opposite to each other; and a microphone controller 30 electrically connected between the battery cell 10 and the heating element unit 20. The microphone controller 30 includes a positive pin 311, a negative pin 312, and a drive pin 313. The drive pin 313 is connected to the first end of the first heating element 21, and the negative pin 312 is connected to the fourth end of the second heating element 22. The microphone controller 30 also provides at least one electrical connection point through which the second end of the first heating element 21 and the third end of the second heating element 22 are connected in series. The microphone controller 30 is configured to output a drive voltage in response to a user's suction action to drive the first heating element 21 and the second heating element 22 to heat up simultaneously.

[0031] Cell 10 can be a rechargeable cell or a disposable cell.

[0032] Cell 10 can be any suitable power source, such as a DC power source, or a battery. In one example, the battery is a lithium-ion battery, or it can be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.

[0033] The heating element unit 20 can be a central heating method or a peripheral heating method. The heating element unit 20 can also heat the aerosol generation matrix to generate aerosols through one or more of the following methods: heat conduction, electromagnetic induction, chemical change, infrared heating, resonance, photoelectric conversion, and photothermal conversion.

[0034] In some embodiments, the first heating element 21 and the second heating element 22 are resistance heating elements, heated by an electric current supply, and transfer heat to the liquid aerosol forming matrix in contact with the first heating element 21 and the second heating element 22 to heat the liquid aerosol forming matrix, thereby generating an aerosol. For example, the first heating element 21 and the second heating element 22 can be metal wires, metal plates, ceramic heaters, etc., but are not limited thereto. Also, for example, the first heating element 21 and the second heating element 22 can be composed of conductive heating wires such as nickel-chromium wire, and can be configured to be wound around the liquid transfer unit, or can be configured to heat at least a portion of the aerosol generating article.

[0035] As one implementation method, such as Figure 1 As shown, the microphone controller 30 also provides an electrical connection point 32a, through which the second end of the first heating element 21 and the third end of the second heating element 22 are connected in series.

[0036] As one implementation method, such as Figure 2 As shown, the microphone controller 30 also provides electrical connection points 32a and 32b, which are electrically connected. The second end of the first heating element 21 and the third end of the second heating element 22 are connected in series through electrical connection points 32a and 32b.

[0037] In some embodiments, the microphone controller 30 also provides three or more interconnected electrical connection points, and the second end of the first heating element 21 and the third end of the second heating element 22 are connected in series through the three or more interconnected electrical connection points.

[0038] It should be noted that the composition of the heating element unit 20 is not limited to the first heating element 21 and the second heating element 22 connected in series, that is, the heating element unit 20 is not limited to two heating elements connected in series. In some embodiments, the heating element unit 20 may also include more than two heating elements connected in series, which can be connected in series through at least one electrical connection point provided by the microphone controller 30.

[0039] In some embodiments, the positive pin 311 is connected to the positive terminal of the battery cell 10, the negative pin 312 is also connected to the negative terminal of the battery cell 10, and the drive pin 313 is connected to the first terminal of the first heating element 21 through an electrical connection point. The positive pin 311, the positive terminal of the battery cell 10, the negative pin 312, and the negative terminal of the battery cell 10 form a power supply circuit, enabling the battery cell 10 to provide power to the microphone controller 30. The drive pin 313 outputs a drive voltage, which is connected to the first terminal of the first heating element 21 through an electrical connection point, thereby inputting the drive voltage into the series circuit of the first heating element 21 and the second heating element 22.

[0040] Please refer to Figure 3 ,exist Figure 1 Based on the embodiment shown, the microphone controller 30 is also provided with an LED pin 314.

[0041] In this embodiment, LED pin 314 is used for an external LED indicator circuit and is configured to light up in response to the user's sucking action, visually reflecting the sucking behavior and enhancing interactivity. In some embodiments, the microphone controller 30 has a built-in LED indicator circuit, in which case LED pin 314 can be omitted.

[0042] In some embodiments, the microphone controller 30 provides four electrical connection points. The first electrical connection point is connected to the drive pin 313 and the first end of the first heating element 21, the second electrical connection point is connected to the second end of the first heating element 21 and the third electrical connection point, the third electrical connection point is also connected to the third end of the second heating element 22, and the fourth electrical connection point is connected to the fourth end of the second heating element 22 and the negative pin 312.

[0043] like Figure 4 or Figure 5 As shown, battery cell 10 is battery cell BAT, first heating element 21 is heating wire L1, second heating element 22 is heating wire L2, heating wires L1 and L2 are connected in series, and microphone controller 30 is microphone controller U1. Microphone controller U1 includes a positive pin VCC, a negative pin GND, a drive pin OUT, and an LED pin LED. Microphone controller U1 also provides electrical connection points J1, J2, J3, and J4. Electrical connection point J1 connects to the drive pin OUT and the first end of heating wire L1, electrical connection point J2 connects to the second end of heating wire L1 and electrical connection point J3, electrical connection point J3 also connects to the third end of heating wire L2, and electrical connection point J4 connects to the fourth end of heating wire L2 and the negative pin GND. The positive pin VCC is connected to the positive terminal of battery cell BAT, and the negative pin GND is also connected to the negative terminal of battery cell BAT.

[0044] In some alternative embodiments, the microphone controller 30 is provided with three electrical connection points: the first electrical connection point is connected to the drive pin 313 and the first end of the first heating element 21, the second electrical connection point is connected to the second end of the first heating element 21 and the third end of the second heating element 22, and the third electrical connection point is connected to the fourth end of the second heating element 22 and the negative pin 312.

[0045] In some embodiments, the resistance values ​​of the first heating element 21 and the second heating element 22 are equal.

[0046] In some embodiments, the resistance values ​​of the first heating element 21 and the second heating element 22 are proportional.

[0047] Assuming the aerosol generating device includes a first liquid storage mechanism and a second liquid storage mechanism, a first heating element 21 is located in the first liquid storage mechanism and is used to heat the liquid aerosol generating matrix stored in the first liquid storage mechanism; a second heating element 22 is located in the second liquid storage mechanism and is used to heat the liquid aerosol generating matrix stored in the second liquid storage mechanism. When the liquid aerosol generating matrix stored in the first liquid storage mechanism and the liquid aerosol generating matrix stored in the second liquid storage mechanism have the same composition, that is, the taste and resistivity of the liquid aerosol generating matrix stored in the first liquid storage mechanism and the liquid aerosol generating matrix stored in the second liquid storage mechanism are the same, by setting the resistance values ​​of the first heating element 21 and the second heating element 22 to be equal, the heating power of the first liquid storage mechanism and the second liquid storage mechanism can be equal, thereby ensuring the consistency of the taste of the aerosol generating device. When the liquid aerosol generating matrix stored in the first liquid storage unit and the liquid aerosol generating matrix stored in the second liquid storage unit have different compositions, that is, when the taste and resistivity of the liquid aerosol generating matrix stored in the first liquid storage unit and the liquid aerosol generating matrix stored in the second liquid storage unit are different, the heating power of the first liquid storage unit and the second liquid storage unit is proportionally related by setting the resistance values ​​of the first heating element 21 and the second heating element 22 to ensure the consistency of the taste of the aerosol generating device.

[0048] In summary, the heating control circuit provided in this application embodiment has at least one electrical connection point provided by the microphone controller. The second end of the first heating element and the third end of the second heating element are connected in series through the electrical connection point. Therefore, it is beneficial to the miniaturization of the aerosol generation device product.

[0049] Please refer to Figure 6 This application provides an embodiment of an aerosol generating apparatus, the aerosol generating apparatus 100 including a heating control circuit 1 as described in any embodiment of this application.

[0050] In some alternative embodiments, the aerosol generating device 100 further includes an indicator circuit 2 electrically connected to the LED pin 314 of the microphone controller 30, the indicator circuit 2 being configured to illuminate in response to a user's inhalation action.

[0051] In some alternative embodiments, the aerosol generating device 100 further includes a housing that defines an airflow channel, and the heating element unit 20 is located within the airflow channel.

[0052] The microphone controller 30 responds to the user's inhalation action by outputting a drive voltage to drive the heating element unit 20 to heat and atomize to generate an aerosol, which is then transported to the outside of the aerosol generating device 100 through the airflow channel for the user to inhale.

[0053] In some embodiments, an airflow channel is defined within the housing, and the first heating element 21 and the second heating element 22 are arranged vertically within the airflow channel (e.g., ...). Figure 4 As shown, heating wires L1 and L2 are arranged vertically, and the airflow channel is not shown; or the housing defines airflow channels corresponding to the first heating element 21 and the second heating element 22, and the first heating element 21 and the second heating element 22 are arranged horizontally (e.g., Figure 5 As shown, heating wires L1 and L2 are arranged side by side, and the airflow channel is not shown.

[0054] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A heating control circuit, characterized by, The heating control circuit comprises: an electric core for providing power supply; a heating element unit comprising a first heating element and a second heating element connected in series; the first heating element comprises opposite first and second ends, and the second heating element comprises opposite third and fourth ends; a microphone controller electrically connected between the electric core and the heating element unit, the microphone controller comprising a positive pin, a negative pin and a driving pin, the driving pin being connected to the first end of the first heating element, and the negative pin being connected to the fourth end of the second heating element; wherein the microphone controller is further provided with at least one electrical connection point, the second end of the first heating element and the third end of the second heating element are connected in series through the electrical connection point, and the microphone controller is configured to output a driving voltage in response to a user's puffing action to drive the first heating element and the second heating element to heat up at the same time.

2. The heating control circuit according to claim 1, wherein: the positive pin is connected to the positive pole of the electric core, the negative pin is further connected to the negative pole of the electric core, and the driving pin is connected to the first end of the first heating element through an electrical connection point.

3. The heating control circuit of claim 1, wherein, The microphone controller is provided with four electrical connection points, the first electrical connection point is connected to the driving pin and the first end of the first heating element respectively, the second electrical connection point is connected to the second end of the first heating element and the third electrical connection point respectively, the third electrical connection point is further connected to the third end of the second heating element, and the fourth electrical connection point is connected to the fourth end of the second heating element and the negative pin respectively.

4. The heating control circuit of claim 1, wherein, The microphone controller is further provided with an LED pin.

5. The heating control circuit of claim 1, wherein, The resistance values of the first heating element and the second heating element are equal.

6. The heating control circuit of claim 1, wherein, The resistance values of the first heating element and the second heating element have a proportional relationship.

7. An aerosol-generating device comprising: The heating control circuit comprises the heating control circuit according to any one of claims 1-6.

8. The aerosol-generating device of claim 7, wherein, Further comprising an indication circuit electrically connected to the LED pin of the microphone controller, the indication circuit being configured to light up in response to a user's puffing action.

9. The aerosol-generating device of claim 8, wherein, Further comprising a shell, the shell defining an airflow passage therein, and the heating element unit being located in the airflow passage.

10. The aerosol generating device according to claim 9, wherein: the shell defines one airflow passage therein, and the first heating element and the second heating element are arranged in an up-down manner in the airflow passage; or the shell defines airflow passages corresponding to the first heating element and the second heating element, and the first heating element and the second heating element are arranged in a left-right manner.

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