Aerosol-generating device and method for aerosol generation

Abstract

An aerosol-generating device (100) comprises a first power supply (120), a vaporiser (110) configured to receive power from the first power supply and configured to generate an aerosol from an aerosol-generating substrate (170), a second power supply (130), and a heating circuit (160) configured to receive power from the second power supply to heat the first power supply.

Description

Technical Field

[0001] This invention relates to a method and apparatus for aerosol generation. Some aerosol generation apparatuses include a power source. Background Technology

[0002] Batteries are known and used as power sources for portable devices, including aerosol generating devices. Some batteries, such as lithium-ion batteries, are capable of having high storage capacities, enabling aerosol generating devices to operate for extended periods. Summary of the Invention

[0003] According to one aspect of the present invention, an aerosol generating apparatus is provided. The aerosol generating apparatus may include a first power source and a second power source. The aerosol generating apparatus may further include a heating circuit. The heating circuit is configured to receive power from the first power source to heat the second power source in response to a temperature below a first temperature threshold. The aerosol generating apparatus may further include a smoke atomizer. The smoke atomizer may be operatively coupled to the first power source and configured to generate aerosols from an aerosol generating matrix in response to a temperature exceeding a second temperature threshold.

[0004] According to another aspect of the invention, a method is provided. The method may include detecting the temperature of a first power source or a second power source. The method may further include heating the second power source using a heating circuit receiving power from the first power source in response to a temperature below a first temperature threshold. The method may further include generating an aerosol using power from the first power source by a smoke atomizer in response to a temperature exceeding a second temperature threshold.

[0005] Including at least one second power source in the apparatus or method facilitates high-capacity operation over a wide temperature range, particularly in low-temperature ranges where the first power source may be inefficient. The use of the second power source facilitates an overall increase in battery capacity during operation in lower temperature ranges, for example, by using the first power source when it is properly heated, or by using the first power source for a short period below a threshold temperature while only heating the second power source. The use of the second power source also facilitates designs that allow for faster heating of the aerosol generation matrix in low-temperature ranges, for example, by enabling the first power source to reach a temperature more quickly, or by using the second power source to initiate heating of the aerosol generation matrix before the first power source reaches a suitable temperature. Furthermore, using the second power source to heat the first power source in a low-temperature range facilitates extending the lifespan of the first power source.

[0006] In one or more aspects, the size and shape of the second power source are configured to heat up faster than the first power source. In one instance, the second power source may have a larger surface area per unit volume than the first power source. A larger surface area per unit volume facilitates faster heating.

[0007] The first power source may have a cylindrical shape. The second power source may have a planar shape. In one example, the first power source, the second power source, or both may be formed as a thin-film battery. In some examples, the first power source, the second power source, or both may be formed by printing onto a substrate. Printing one or more power sources onto a substrate facilitates manufacturing ease compared to assembling multiple discrete power sources on a substrate.

[0008] In one or more aspects, the second power source can be removably connected to the heating circuit. This removable connection to the heating circuit allows for the use of a disposable or replaceable power source as the second power source.

[0009] In one or more aspects, the first power source can be non-removably connected to the atomizer. The first power source can benefit from an extended lifespan by using a second power source at low temperatures, which allows for the use of battery chemistry with a greater energy storage capacity.

[0010] In one or more aspects, the heating circuit may be activated or the temperature of the first or second power supply may be detected in response to motion detected by a motion sensor. Alternatively or additionally, the temperature of the heating circuit or the first power supply may be detected in response to the aerosol generating device being switched on.

[0011] In one or more aspects, the first power source may have a higher energy storage capacity than the second power source. The first power source may have a larger physical volume than the second power source.

[0012] In one or more aspects, the aerosol generating apparatus may include a heating circuit configured to heat one or both of a first power source and a second power source. In particular, the heating circuit may be configured to heat the second power source faster than the first power source.

[0013] In one or more aspects, the heating circuit may be configured to receive power from a first power source, a second power source, or both. Additionally or alternatively, the aerosol generating apparatus may include a capacitor for storing electrical energy, which may be used supplementally or alternatively to provide power to the heating circuit to heat the first power source, the second power source, or both.

[0014] In one or more aspects, a second power source may be operatively coupled to the atomizer to supply power to the atomizer when the temperature exceeds a first temperature threshold. The second power source may supply power to the atomizer until the temperature exceeds a second temperature threshold. The second temperature threshold may be higher than the first temperature threshold.

[0015] The controller of the aerosol generating device can be configured to detect the temperature of a first power source, a second power source, or both. The controller can be operatively coupled to one or more temperature sensors. The temperature sensors can be actively or passively powered.

[0016] In one or more aspects, the heating circuit may be configured to receive power from the first power source to heat the second power source when the temperature of the second power source is below a first temperature threshold. Specifically, the temperature of the second power source may be compared to the first temperature threshold. In response to the temperature of the second power source exceeding the first temperature threshold, the heating circuit may be configured to receive power from the second power source to heat the first power source when the temperature of the first power source is below a second temperature threshold. Specifically, the temperature of the first power source may be compared to the second temperature threshold. After the temperature of the first power source exceeds the second temperature threshold, the first power source can be used to provide power to the atomizer. The second power source can also be recharged using the first power source.

[0017] The following provides a non-exhaustive list of non-limiting examples. Any one or more features of these examples may be combined with any one or more features of another example, embodiment, or aspect described herein.

[0018] Example 1: An aerosol generating apparatus includes: a first power source; a second power source; a heating circuit configured to receive power from the first power source to heat the second power source in response to a temperature of either the first power source or the second power source being below a first temperature threshold; and a smoke atomizer operatively coupled to the first power source and configured to generate an aerosol from an aerosol generating matrix in response to the temperature exceeding a second temperature threshold.

[0019] Example 2: A method includes: detecting the temperature of a first power source or a second power source; heating the second power source using a heating circuit that receives power from the first power source in response to the temperature being below a first temperature threshold; and generating an aerosol using power from the first power source by a smoke atomizer in response to the temperature being above a second temperature threshold.

[0020] Example 3: An apparatus or method of any of the preceding examples, wherein the size and shape of the second power source are configured to heat up faster than the first power source.

[0021] Example 4: An apparatus or method of any of the preceding examples, wherein the second power source has a larger surface area per unit volume than the first power source.

[0022] Example 5: An apparatus or method of any of the preceding examples, wherein the first power source has a cylindrical shape.

[0023] Example 6: An apparatus or method of any of the preceding examples, wherein the second power source has a planar shape.

[0024] Example 7: An apparatus or method of any of the preceding examples, wherein the first power source or the second power source comprises a thin-film battery.

[0025] Example 8: An apparatus or method of any of the preceding examples, wherein the first power source has a higher energy storage capacity than the second power source.

[0026] Example 9: An apparatus or method of any of the preceding examples, wherein the first power source has a larger volume than the second power source.

[0027] Example 10: An apparatus or method of any of the preceding examples, wherein the heating circuit is configured to heat the second power source faster than the first power source.

[0028] Example 11: An apparatus or method of any of the foregoing examples, wherein the heating circuit is further configured to receive power from the first power source, the second power source, or both.

[0029] Example 12: An apparatus or method of any of the foregoing examples, wherein the heating circuit is further configured to receive power from a capacitor to heat the first power source, the second power source, or both.

[0030] Example 13: An apparatus or method of any of the preceding examples, wherein when the temperature exceeds the first temperature threshold, the second power source provides power to the atomizer.

[0031] Example 14: An apparatus or method of Example 13, wherein the second power source supplies power to the atomizer until the temperature exceeds the second temperature threshold.

[0032] Example 15: An apparatus or method of Example 13 or 14, wherein the second power source recharges the first power source in response to the temperature exceeding the second temperature threshold.

[0033] Example 16: An apparatus or method of any of Examples 13 to 15, wherein the second temperature threshold is a temperature higher than the first temperature threshold.

[0034] Example 17: Any of the apparatuses or methods of the preceding examples further includes a controller configured to detect the temperature of the first power supply, the second power supply, or both.

[0035] Example 18: An apparatus or method of any of the preceding examples, wherein the temperature of the second power supply is compared with the first temperature threshold, and the temperature of the first power supply is compared with the second temperature threshold.

[0036] Example 19: An apparatus or method of any of the preceding examples, wherein the first power source or the second power source is formed by printing on a substrate.

[0037] Example 20: An apparatus or method of any of the preceding examples, wherein the second power source is removably connected to the heating circuit.

[0038] Example 21: An apparatus or method of any of the preceding examples, wherein the first power source is non-removably coupled to the atomizer.

[0039] Example 22: An apparatus or method of any of the preceding examples, wherein the heating circuit is activated or the temperature is detected in response to motion detected by a motion sensor.

[0040] Example 23: An apparatus or method of any of Examples 1 to 21, wherein the heating circuit is activated or the temperature is detected in response to turning on the aerosol generating apparatus. Attached Figure Description

[0041] Several examples will now be described further with reference to the accompanying drawings, in which:

[0042] Figure 1 A schematic diagram of an example of an aerosol generating apparatus with a dual-battery heating device is shown;

[0043] Figure 2 A schematic diagram of another example of an aerosol generating device is shown;

[0044] Figure 3 A schematic diagram of an example of a first power source is shown;

[0045] Figure 4 A schematic diagram illustrating an example of a second power source is shown; and

[0046] Figure 5 A flowchart illustrating an example of a method using a dual-battery heating device is shown. Detailed Implementation

[0047] Lithium-ion batteries can have problems operating at low temperatures. Under such conditions, both battery capacity and the voltage the battery can generate at its terminals can decrease. This can cause devices powered by lithium-ion batteries to degrade in performance or become inoperable. For example, if a device containing a battery is used when its capacity is below a specified level (typically 5 or 10%), the device may be configured to shut down to protect it from use when its power supply is interrupted, potentially leaving it in an irrecoverable state. Additionally, if the battery's voltage output drops below expected levels, the electronics it powers may fail to function or may operate in an unstable and unpredictable manner. If the battery recovers to its normal state, it may begin to operate normally; however, the powered device may require a reset to allow it to resume normal operation. However, attempting to charge a lithium-ion battery at low temperatures can cause lithium to plate onto the anode, resulting in irreversible damage. This damage can accumulate over time, and if continued, the battery may become inoperable at some point. Therefore, it may be advantageous to keep the battery at a higher temperature to allow it to operate at a preferred voltage and battery capacity, and also to allow it to be charged.

[0048] Even at what is considered normal temperatures, the capacity of lithium-ion batteries generally decreases with temperature. For example, if the battery temperature drops (even above 0°C), the capacity of a lithium-ion battery may decrease. This capacity reduction can become more pronounced near 0°C and is considered significant below 0°C. At these low temperatures, device operation may become problematic. Additionally, depending on both the device and battery design, charging at these low temperatures may be detrimental to the battery's lifespan. For charging, temperatures above 0°C to 5°C (depending on the battery design) are generally considered normal, while temperatures below this level are considered unfavorably cold.

[0049] This disclosure relates to returning a battery to an advantageous state by applying heat if the battery does indeed enter a low-temperature state. The heat can be applied by the device itself to allow for self-heating. Once the battery returns to a higher temperature, its capacity also returns to an advantageous state, and the battery output returns to normal and functions in a more predictable manner.

[0050] During heating from a cryogenic state, the battery may remain in an adverse condition. This duration can be prolonged due to factors related to the battery's form. For example, some batteries have a cylindrical shape. Heat applied to the outer surface of this battery may take some time to propagate to the battery's internal volume. Full heating, depending on the battery's form, can facilitate faster heating. In one instance, the entire surface area of ​​a flat battery may be positioned close to a heater or heating circuitry. However, compared to a cylindrical form, providing high energy capacity within an aerosol generation device may be impractical for such a flat battery form.

[0051] This disclosure relates to arranging an energy storage device within an aerosol generation apparatus to both meet the requirement of rapidly heating the battery to an operational temperature and storing sufficient energy for multiple uses of the apparatus.

[0052] Figure 1 An aerosol generating device 100 is shown, which may include various components to facilitate a dual-battery heating device for cryogenic use. The aerosol generating device 100 may include at least one or more of the following: an atomizer 110, a first power source 120, a second power source 130, a controller 140, an optional non-battery power source 150, a heating circuit 160, and an aerosol generating matrix 170. The device 100 may also include one or more other components, such as a housing 105, a mouthpiece, an external device interface, an actuator, a communication interface, a display, a speaker, a switch, and a puff sensor. Although shown separately, in some embodiments, the atomizer 110 and the heating circuit 160 may be part of the same heating system. The first power source 120, the second power source 130, or both may be batteries. Each battery may be disposable or rechargeable.

[0053] As shown in the figure, the device may include at least two power sources, such as a first power source 120 and a second power source 130. Although only one of each power source is shown, two or more of each power source may also be provided.

[0054] Each power supply can be designed and optimized for different purposes. The first power supply 120 can be optimized for energy storage capacity. The second power supply 130 can be optimized for rapid heating of the first power supply 120. The second power supply 130 can have a size, shape, and location within the device that facilitates rapid heating, while the first power supply 120 can have a form that allows for efficient storage of large amounts of energy. In one example, the second power supply 130 can have a shape and placement within the device 100 that facilitates easier rapid heating, such as having a flat form where a large surface area is very close to the heating circuit 160. This configuration can be used in some cases when the second power supply 130 can be printed on the same substrate as other electronics of the device 100.

[0055] In one or more aspects, the first power source 120 may have a higher energy storage capacity than the second power source 130. The first power source 120 may have a larger physical volume than the second power source 130. In one instance, the first power source 120 and the second power source 130 may have the same overall shape, but the first power source 120 may be larger than the second power source 130 and have a smaller surface area per unit volume than the second power source.

[0056] In one or more aspects, the second power source 130 may be configured to heat up faster than the first power source 120. The size and shape of the second power source 130 may be set to facilitate faster heating compared to the first power source 120. In one example, the second power source 130 may have a larger surface area per unit volume than the first power source 120. A larger surface area per unit volume facilitates faster heating.

[0057] The shape of the power source can indicate the surface area per unit volume. In one example, the first power source 120 may have a cylindrical shape. The second power source 130 may have a planar shape, such as a wide and deep but relatively thin rectangular pyramid. In one example, the first power source 120, the second power source 130, or both may be formed as a thin-film battery. In some examples, the first power source 120, the second power source 130, or both may be formed by printing onto an electronic device substrate. A non-battery power source 150 may also be printed onto the substrate. The substrate may be a printed circuit board (PCB), which can mechanically or electrically connect the first and second power sources to other components of the aerosol generating apparatus.

[0058] In one or more aspects, the aerosol generating apparatus 100 may include a heating circuit configured to heat one or both of a first power source and a second power source. In particular, the heating circuit may be configured to heat the second power source faster than the first power source. The heating circuit is thermally coupled to one or both of the first power source and the second power source. The heating circuit may also be electrically coupled to one or both of the first power source and the second power source. In one example, the heating circuit may be directly thermally coupled to the second power source, having a higher thermal conductivity than when thermally coupled to the first power source. In another example, the thermal conductivity between the heating circuit and the first and second power sources may be managed by a controller.

[0059] In some embodiments, at low temperatures, the device 100 may use a heating circuit 160 to perform a process of heating a first power source 120 or a second power source 130, the heating circuit being able to use energy from the first power source 120, the second power source 130 or another energy source or power source 150 (such as a capacitor or supercapacitor).

[0060] The second power source 130 can be designed for rapid heating. Therefore, even under the same heating conditions, the time it takes for the second power source 130 to heat to a specific temperature can be faster than that of the first power source 120. The second power source 130 can also have a shorter lifespan than the first power source 120, which is designed for energy storage. In some cases, the second power source 130 can be a replaceable power source (see...). Figure 2 ).

[0061] In some embodiments, more than one power source may be included and used for one or both of a first power source or a second power source. In one instance, multiple small power sources may be used. Small power sources can be easily and quickly heated to full capacity. The small power sources can then generate heat, which can be used in part to allow the use of the device or in part to heat another small power source. Heating of the small power sources can continue. In one instance, multiple small power sources may be printed onto an electronic device substrate. Each small power source may represent a section or segment of a larger power source. In one instance, a single battery may be used for the first power source 120, and multiple small batteries may be used for the second power source 130.

[0062] The controller 140 of the aerosol generating device 100 can be configured to detect the temperature of either the first power supply 120 or the second power supply 130, or at least detect a temperature indicating the temperature of either the first power supply 120 or the second power supply 130, such as the ambient temperature near either or both power supplies. The controller 140 can be operatively coupled to or include a temperature sensor for detecting such temperatures. The temperature sensor can be actively or passively powered.

[0063] In some embodiments, heating of the first power source 120 or the second power source 130 may be notified by one or more sensors of the device 100, such as motion sensors or temperature sensors that provide information that the device will soon be placed under colder conditions. For example, a motion sensor may detect that the device 100 has been removed from a pocket or placed against the lips. In another instance, a temperature sensor may detect the external temperature that the device 100 is experiencing and whether the device is cooling. In this case, heating of the first power source 120 by the heating circuit 160 may be performed to prevent the first power source 120 from cooling down and thus exhibiting performance degradation.

[0064] In one or more aspects, the heating circuit 160 may be activated in response to motion detected by a motion sensor, or a temperature may be detected. Alternatively or additionally, the temperature of the heating circuit 160 or the first power supply 120 may be detected in response to the aerosol generating device 100 being switched on.

[0065] The aerosol device charger can be external to and removably connected to the aerosol generating device for charging one or more of the power sources of device 100. For example, device 100 may include an external device interface that may include a charging interface operatively connectable to the charger's interface. The charger may be portable, allowing the user to hold and carry the aerosol generating device connected to it. An example of the charger is the IQOS charger sold by Philip Morris Products SA in Neuchâtel, Switzerland.

[0066] The housing 105 of the device 100 can be used to house components. Some components can be attached to the housing 105. The housing 105 can be provided in a size and shape suitable for being held by the user's hand and sucked by the user's mouth. The housing 105 can be integrally formed in one part, or can be removably attached together as multiple parts.

[0067] The aerosol generating device may include a controller section and a consumable section. The housing 105 can be divided into a controller section and a consumable section. Generally, the controller section may include components that are not intended to be replaced, and the consumable section may include components that are expected to be replaced during the usable lifespan of the aerosol generating device. For example, the controller section may include a switch, a puff sensor, at least a portion of the atomizer 110, a heating circuit 160, a controller 140, a first power supply 120, a second power supply 130, an actuator, a communication interface, a display, or a speaker. For example, the consumable section may include an aerosol generating matrix, a portion of the atomizer, and an optional second power supply 130. The controller section and the consumable section may be permanently or removably coupled together. The consumable section may be entirely replaceable, or various components of the consumable section may be removed and replaced. The consumable section may also be described as a mouthpiece and may include a mouthpiece for convenient inhalation by the user.

[0068] The aerosol generating matrix 170 can take any suitable form. For example, the matrix 170 can be solid or liquid. The matrix 170 can be contained in a matrix housing or cylinder, which can be attached to a consumable portion of the housing. The atomizer 110 can be operatively attached to the aerosol generating matrix 170 to generate an aerosol when activated.

[0069] Atomizer 110 may be connected to housing 105 of device 100. Some or all of atomizer 110 may be connected to consumable portion of housing 105. Some or all of atomizer may be connected to controller portion of housing 105.

[0070] The atomizer 110 can utilize any suitable technology to generate aerosols from the aerosol generating matrix 170. In some cases, the atomizer 110 can be thermally or fluidly coupled to the aerosol generating matrix 170. The atomizer 110 is compatible with a wide variety of aerosol generating matrices.

[0071] The atomizer 110 may include a heater, a heater coil, a chemical heat source (such as a carbothermal source), or any suitable means of heating the substrate 170 to generate an aerosol. The atomizer 110 may be coupled to a controller portion of housing 105 to receive power from a first power source 120 or a second power source 130, and may be disposed adjacent to the substrate 170. For example, the atomizer 110 may be provided in the form of a heater, and the substrate 170 may be housed within a substrate housing. The heating element of the heater may be disposed adjacent to the substrate housing and heated to generate an aerosol from a liquid or solid substrate. A portion of the atomizer may also be coupled to a consumable portion of housing 105. For example, the heater coil may include a sensor coupled to the consumable portion and an induction coil coupled to a controller portion configured to transfer energy to the sensor to heat the substrate.

[0072] The atomizer 110 may include an atomizer. A liquid aerosol generating matrix may be included in a matrix housing and is in fluid communication with the atomizer. The atomizer can mechanically generate an aerosol from a liquid substrate.

[0073] The atomizer 110 is compatible with an aerosol-generating matrix having a nicotine source and a lactic acid source. The nicotine source may include an adsorption element, such as a polytetrafluoroethylene (PTFE) core on which nicotine is adsorbed, which can be inserted into a chamber forming a first compartment. The lactic acid source may include an adsorption element, such as a PTFE core on which lactic acid is adsorbed, which can be inserted into a chamber forming a second compartment. The atomizer 110 may include a heater to heat the nicotine source and the lactic acid source. Nicotine vapor can then react with lactic acid vapor in the gas phase to form an aerosol.

[0074] The switch can be coupled to the controller portion of housing 105 and operatively coupled to controller 140. The switch can be disposed within or on housing 105 for user access. The switch can utilize any suitable mechanism to receive input from the user. For example, the switch may include a button or a joystick. The switch can be enabled or disabled in response to a user pressing, toggling, or otherwise manipulating it.

[0075] A switch can be associated with one or more functions. In particular, engaging the switch can activate various functions of the aerosol generating device 100. For example, the atomizer 110 can be activated in response to the engagement of the switch. The switch can be engaged to provide power (e.g., activate) and disengaged to de-energize (e.g., deactivate) the atomizer 110 or other components.

[0076] As an addition to or alternative to a switch, a vaping sensor may be operatively coupled to an atomizer to activate it. The vaping sensor may also be operatively coupled to a controller 140 of the aerosol generating device 100. The vaping sensor detects user inhalation at the mouthpiece of the consumable portion. The vaping sensor may be positioned within an airflow channel in the aerosol generating device to detect when a user inhales or vapes at the device 100. The controller 140 may use the vaping sensor to detect vaping. Non-limiting types of vaping sensors may include one or more of a vibrating diaphragm, piezoelectric sensor, mesh diaphragm, pressure sensor (e.g., capacitive pressure sensor), and airflow switch.

[0077] A switch can be described as part of the user interface of the aerosol generating device 100. The user interface may include any component that interacts with any of the user's senses, such as touch, vision, hearing, taste, or smell.

[0078] The speaker can also be described as part of the user interface. The speaker can be coupled to the controller portion of housing 105. The speaker can be positioned within or on housing 105 such that the sound generated by the speaker can be heard by the user. The speaker can be of any size and type suitable for generating sound for a portable aerosol generating device. The speaker can be simple and includes a buzzer to produce one or more tones. The speaker can have higher fidelity than a buzzer and can provide speech or even musical sounds.

[0079] The display can also be described as part of the user interface. The display can be attached to the controller portion of housing 105. The display can be disposed within or on housing 105, making it visible to the user. The display can be of any size and type suitable for displaying visual images on a portable aerosol generating device. The display can be simple and include a single light source, such as a light-emitting diode, to produce one or more pixels or one or more colors. The resolution of the display can be higher than that of a single light source and capable of displaying images.

[0080] The external device interface of the aerosol generating device 100 may include a communication interface. The communication interface may be connected to the controller portion of the housing 105. The communication interface may be located inside or on the housing 105.

[0081] The communication interface can be operatively connected to other devices and is used to transmit data via wired or wireless connections. The communication interface can connect to one or more networks. For example, the communication interface can connect to a low-power wide-area network (LPWAN), such as a low-power wide-area network using technologies from Sigfox or the LoRa Alliance.

[0082] The communication interface can be operatively connected to a remote user device. For example, the remote user device may be a smartphone, tablet, or other device located remotely from the aerosol generating device. The remote user device may include its own communication interface for connection to the aerosol generating device. The communication interface of the aerosol generating device may be connected to the Internet directly or indirectly via the remote user device (e.g., a smartphone) or via a network (e.g., an LPWAN).

[0083] The communication interface may include an antenna for wireless communication. The wireless communication interface may utilize a Bluetooth protocol such as Bluetooth Low Energy. The communication interface may include a micro Universal Serial Bus (micro USB) port for wired communication. The wired communication interface may also be used as a power connection for charging.

[0084] Any suitable external power source can also be used to recharge the first power source, the second power source, or even the capacitor. The external device interface may include a charging interface operatively connectable to the first power source 120, the second power source 130, the non-battery power source 150, or any combination thereof, which may be integrated with or separate from the wired communication interface. Each power source 120, 130, 150 may be connected to the controller portion of the housing 105.

[0085] Each power supply 120, 130, 150 may be disposed in or on housing 105. Each power supply 120, 130, 150 may be removably connected to housing 105 (intended to be replaced) or permanently connected (intended not to be replaced). A permanent power supply may also be described as a power supply that is not removably or non-removably connected.

[0086] Each power source 120, 130, 150 can supply power to various components. Each power source 120, 130, 150 can be operatively connected to at least one atomizer 110. Each power source 120, 130, 150 can be operatively connected to the atomizer 110 using a controller 140.

[0087] In some embodiments, a first power source 120 may be operatively connected to the atomizer 110 to provide power. The first power source 120 may be operatively connected to a second power source 130 to charge the second power source, or to a non-battery power source 150 to charge the non-battery power source. The first power source 120 may be operatively connected to a heating circuit 160 to provide power to heat one or more of the power sources. The second power source 130 may be operatively connected to the heating circuit 160 to provide power to heat one or more of the power sources. The non-battery power source 150 may be operatively connected to the heating circuit 160 to provide power to heat one or more of the power sources. A controller 140 may be operatively connected between any of the power sources and the heating circuit 160 to manage the power supply to the heating circuit 160.

[0088] Figure 2 An example of an aerosol generating apparatus 200 is shown, the aerosol generating apparatus comprising, and Figure 1 The device 200 contains many of the same components as device 100. The difference with device 200 is that the second power source 230 can be removable and replaceable. In particular, the second power source 230 can be removably connected to the heating circuit 160. Alternatively or additionally, the second power source 230 can be removably connected to the atomizer 110, controller 140, first power source 120, or even non-battery power source 150. The second power source 230 can be received in a compartment 232 within the housing 205 of device 200. The removable connection to the heating circuit allows a disposable or replaceable power source type to be used as the second power source 130.

[0089] The shape of the power source can help with the heating rate, especially the threshold temperature. Figure 3 An example of a first power source 120 that can be used as a cylindrical battery in device 100 or device 200 is shown. Figure 4 An example of a second power source 130, which can be used as a planar battery in device 100 or device 200, is shown. Generally, the rate of heat dissipation and heating of a power source is proportional to the ratio of its surface area to its volume. The planar shape of the second power source 130 is more suitable for rapid heating.

[0090] In some embodiments (not shown), the first power source 120 may be flat (e.g., similar to a mobile phone battery). The first power source 120 may be larger than the second power source 130 and therefore may consume more energy to heat. The smaller second power source 130 may consume less energy to heat, even if it has the same shape as the first power source 120.

[0091] Figure 5 An example of a method using a dual-battery heating device is illustrated. Method 300 may include heating a second power source in block 302 until the temperature exceeds a first temperature threshold. The temperature compared to the first temperature threshold indicates the temperature of the second power source. The first temperature threshold may represent the minimum operating temperature of the second power source. A heating circuit may be used to heat the second power source. The heating circuit may be powered by a first power source, a second power source, or even a non-battery power source (such as a capacitor). In one example, a first power source with a larger capacity than the second power source may be used.

[0092] Method 300 may further include, in block 304, using a heating circuit powered by a second power supply to heat the first power supply until the temperature exceeds a second temperature threshold. The temperature compared to the second temperature threshold indicates the temperature of the first power supply. The second temperature threshold may represent the minimum operating temperature of the first power supply. In some cases, the second temperature threshold may be higher than the first temperature threshold.

[0093] In some cases, heating from a single power source can be used. In other cases, all power sources can be heated together. Similarly, sensing the temperature of a single power source can be used. In other cases, the temperature of the power source can be represented by a single temperature measurement or value.

[0094] In some embodiments, the second power source can also be used to begin supplying power to the atomizer before the temperature reaches a second temperature threshold, which allows the use of the aerosol generating device. The power supply to the atomizer and the use of the aerosol generating device can increase the temperature of the first power source to supplement or replace the power supply to the heating circuit for direct heating of the first power source.

[0095] Method 300 may also include, in block 306, using a first power source to heat the aerosol-generating matrix in response to reaching a second temperature threshold. Optionally, a second power source may continue to be used to heat the atomizer simultaneously with the first power source. In some cases, after the first power source reaches the second temperature threshold, the second power source may be used to recharge it to prepare it for the next use of the device.

Claims

1. An aerosol generating apparatus, comprising: case; A first power source is disposed in or on the housing; A second power source is provided in or on the housing; A heating circuit configured to receive power from the first power source to heat the second power source in response to the temperature of the first power source or the second power source being lower than a first temperature threshold, and to receive power from the second power source to heat the first power source in response to the temperature of the second power source exceeding the first temperature threshold when the temperature of the first power source is lower than a second temperature threshold. as well as A smoke atomizer, operatively connected to the first power source and configured to generate an aerosol from an aerosol generating matrix in response to the temperature of either the first or second power source exceeding a second temperature threshold.

2. The apparatus of claim 1, wherein the size and shape of the second power source are configured to heat up faster than the first power source.

3. The apparatus of claim 1, wherein the second power source has a larger surface area per unit volume than the first power source.

4. The apparatus of claim 1, wherein the first power source has a higher energy storage capacity than the second power source.

5. The apparatus of claim 1, wherein the first power source has a larger volume than the second power source.

6. The apparatus of claim 1, wherein the heating circuit is configured to heat the second power source faster than the first power source.

7. The apparatus of claim 1, wherein the heating circuit is further configured to receive power from a capacitor to heat the first power source, the second power source, or both.

8. The apparatus of claim 1, wherein the second power source supplies power to the atomizer when the temperature of the first power source or the second power source exceeds the first temperature threshold.

9. The apparatus of claim 1, wherein the second power source supplies power to the atomizer until the temperature of the first power source or the second power source exceeds the second temperature threshold.

10. The apparatus of claim 1, wherein the second power source recharges the first power source in response to the temperature of the first power source or the second power source exceeding the second temperature threshold.

11. The apparatus of claim 1, wherein the second temperature threshold is a temperature higher than the first temperature threshold.

12. The apparatus of claim 1, further comprising a controller configured to detect the temperature of the first power supply, the second power supply, or both.

13. The apparatus of claim 1, wherein the temperature of the second power supply is compared with the first temperature threshold, and the temperature of the first power supply is compared with the second temperature threshold.

14. The apparatus of claim 1, wherein the heating circuit is activated or the temperature of the first power supply or the second power supply is detected in response to switching on the aerosol generating device.

15. A method for generating aerosols, comprising: Detecting the temperature of a first power supply or a second power supply, wherein the first power supply and the second power supply are disposed in or on a housing; In response to the temperature of the first power supply or the second power supply being lower than a first temperature threshold, a heating circuit that receives power from the first power supply is used to heat the second power supply. When the temperature of the first power source is lower than the second temperature threshold, in response to the temperature of the second power source exceeding the first temperature threshold, a heating circuit receiving power from the second power source is used to heat the first power source; and In response to the temperature of either the first power source or the second power source exceeding a second temperature threshold, power from the first power source is used to generate aerosols by the atomizer.

16. The method of claim 15, wherein the size and shape of the second power source are configured to heat up faster than the first power source.

17. The method of claim 15, wherein the second power source has a larger surface area per unit volume than the first power source.

18. The method of claim 15, wherein the first power source has a higher energy storage capacity than the second power source.

19. The method of claim 15, wherein the first power source has a larger volume than the second power source.

20. The method of claim 15, wherein the heating circuit is configured to heat the second power source faster than the first power source.

21. The method of claim 15, wherein the heating circuit is further configured to receive power from a capacitor to heat the first power source, the second power source, or both.

22. The method of claim 15, wherein the second power source supplies power to the atomizer when the temperature of the first power source or the second power source exceeds the first temperature threshold.

23. The method of claim 15, wherein the second power source supplies power to the atomizer until the temperature of the first power source or the second power source exceeds the second temperature threshold.

24. The method of claim 15, wherein the second power source recharges the first power source in response to the temperature of the first power source or the second power source exceeding the second temperature threshold.

25. The method of claim 15, wherein the second temperature threshold is a temperature higher than the first temperature threshold.

26. The method of claim 15, further comprising detecting the temperature of the first power supply, the second power supply, or both via a controller.

27. The method of claim 15, wherein the temperature of the second power supply is compared with the first temperature threshold, and the temperature of the first power supply is compared with the second temperature threshold.

28. The method of claim 15, wherein the heating circuit is activated or the temperature of the first power supply or the second power supply is detected in response to switching on the aerosol generating device.

29. An aerosol generating apparatus, comprising: case; A first power source is disposed in or on the housing; A second power source is provided in or on the housing; A heating circuit configured to receive power from the first power source to heat the second power source in response to the temperature of either the first power source or the second power source being below a first temperature threshold. as well as A smoke atomizer, operatively connected to the first power source and configured to generate an aerosol from an aerosol generating matrix in response to the temperature of either the first or second power source exceeding a second temperature threshold. When the temperature of the first power source or the second power source exceeds the first temperature threshold, the second power source supplies power to the atomizer.

30. An aerosol generating apparatus, comprising: case; A first power source is disposed in or on the housing; A second power source is provided in or on the housing; A heating circuit configured to receive power from the first power source to heat the second power source in response to the temperature of either the first power source or the second power source being below a first temperature threshold. as well as A smoke atomizer, operatively connected to the first power source and configured to generate an aerosol from an aerosol generating matrix in response to the temperature of either the first or second power source exceeding a second temperature threshold. The second power source supplies power to the atomizer until the temperature of either the first power source or the second power source exceeds the second temperature threshold.

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