Heating device and heating method

Abstract

The invention belongs to the technical field of atomization, and provides a heating device and a heating method.The heating device comprises a heating mechanism, a rolling wheel mechanism, a detection circuit and a main control circuit, and when an aerosol generating substrate is inserted into or pulled out of a containing cavity, the rolling wheel mechanism rotates in the corresponding direction; the detection circuit can reflect the position of the aerosol generating substrate relative to the containing cavity by detecting the movement direction and the movement stroke of the roller mechanism and outputs a corresponding electric signal to the main control circuit, and the main control circuit detects and processes the electric signal and judges the state of the aerosol generating substrate. The heating device does not need to be provided with a triggering mechanism such as an electrical sensor or a mechanical switch, interference of factors such as high temperature and electromagnetism is reduced, misjudgment and false triggering are reduced, and the detection and atomization reliability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of atomization, and in particular relates to a heating device and a heating method. Background Art

[0002] The heating-not-burning atomization equipment is a new type of electronic aerosol generating device that can heat the atomizing medium in the aerosol generating matrix to generate aerosol. It has the advantages of being safe, convenient, healthy, and environmentally friendly, and therefore is gaining more and more attention and favor among people.

[0003] Among them, in the heat-not-burn atomization device, the heating device is provided with a accommodating cavity, and the aerosol generating substrate is heated by being inserted into the accommodating cavity, and the heating is stopped after being pulled out. In order to realize the reliable heating start and stop of the aerosol generating substrate, the aerosol generating substrate needs to be identified to determine whether the aerosol generating substrate reaches the heating position or leaves the heating position.

[0004] The conventional detection method is to directly detect the characteristic quantities (physical quantities such as light, sound, magnetism and dielectricity) of the aerosol generating matrix by using electrical sensors, or to directly trigger the detection by using a mechanical switch mechanism, and then control the heating device to start or stop heating.

[0005] However, when electrical sensors are used for detection, they are easily affected by high temperatures, electromagnetic interference, etc. during heating, which may cause misjudgment. When a mechanical switch structure is used, the detection and identification action is single and easily triggered by mistake. Summary of the invention

[0006] The object of the present invention is to provide a heating device, aiming to solve the problem of misjudgment or mis-triggering in the traditional detection of the state of aerosol-generating substrate.

[0007] A first aspect of an embodiment of the present invention provides a heating device, comprising:

[0008] A heating mechanism, wherein the heating mechanism is provided with a receiving cavity for receiving an aerosol generating substrate, the receiving cavity having an opening for inserting and removing the aerosol generating substrate, and the heating mechanism is further provided with a heating component for heating the aerosol generating substrate;

[0009] A roller mechanism, the roller mechanism being arranged on the heating mechanism or opposite to the heating mechanism, and being in contact with the aerosol generating substrate and rotating when the aerosol generating substrate is inserted or removed;

[0010] a detection circuit configured to convert the movement direction and movement stroke of the roller mechanism into a corresponding first electrical signal when the aerosol generating substrate is inserted, or to convert the movement direction and movement stroke of the roller mechanism into a corresponding second electrical signal when the aerosol generating substrate is pulled out;

[0011] The main control circuit is connected to the detection circuit and the heating component respectively, and is configured to trigger and control the heating component to start heating according to the first electrical signal, and to trigger and control the heating component to stop heating according to the second electrical signal.

[0012] Optionally, the detection circuit is specifically configured as:

[0013] When the roller mechanism rotates along a first direction, a first direction signal is output and a plurality of pulse signals are output in sequence;

[0014] When the roller mechanism rotates in the second direction, a second direction signal is output and a plurality of pulse signals are output in sequence;

[0015] The main control circuit is specifically configured as follows:

[0016] When receiving the first direction signal and m1 pulse signals, determining that the aerosol generating substrate has reached the heating position, and triggering and controlling the heating component to start heating;

[0017] or when receiving the second direction signal and m2 pulse signals, determining that the aerosol generating substrate leaves the heating position, and triggering and controlling the heating component to stop heating;

[0018] Among them, m1 and m2 are positive integers.

[0019] Optionally, the detection circuit includes a rotary encoder, and the roller mechanism includes:

[0020] A bracket, the bracket being mounted on the heating mechanism;

[0021] A friction wheel, wherein the friction wheel is fixedly mounted on the bracket, the friction wheel is at least partially located in the accommodating cavity or the friction wheel is located above the opening of the accommodating cavity, and contacts the aerosol generating substrate and rotates forward or reversely when the aerosol generating substrate is inserted or removed;

[0022] A transmission mechanism is connected to the friction wheel and the rotary encoder, and the transmission mechanism is configured to link the friction wheel and the rotary encoder.

[0023] Optionally, the bracket includes a first connecting rod and a second connecting rod connected to each other, the first connecting rod is fixedly mounted on the heating mechanism, and the second connecting rod is fixedly mounted on the friction wheel;

[0024] Alternatively, the bracket includes a first connecting rod and a second connecting rod connected to each other, and the bracket also includes an elastic member;

[0025] The first connecting rod is mounted on the heating mechanism via the elastic member, and / or the first connecting rod is connected to the second connecting rod via the elastic member, and / or the second connecting rod is elastically mounted to the friction wheel via the elastic member.

[0026] Optionally, the heating component includes a plurality of heating zones, the plurality of heating zones correspond to different areas of the accommodating cavity, and the plurality of heating zones can work independently or simultaneously;

[0027] The main control circuit is further configured to determine the position of the aerosol generating substrate in the containing cavity according to the electrical signal, and control the operation of the corresponding heating interval according to the position.

[0028] Optionally, the main control circuit is further configured as:

[0029] When the pulse signal is not received within a first preset time period after the heating is completed, the heating device is triggered to enter a dormant state.

[0030] Optionally, the main control circuit is further configured as:

[0031] In the sleep state, when the first direction signal is received, the heating device is triggered to control the heating device to exit the sleep state.

[0032] Optionally, the main control circuit is further configured as:

[0033] When the pulse signal is not received within the second preset time after exiting the sleep state, the heating device is triggered to control the heating device to re-enter the sleep state.

[0034] Optionally, the main control circuit is further configured as:

[0035] When the first direction signal is received and m1 pulse signals are not received, determining that the aerosol generating substrate has not reached the heating position, and triggering and controlling the heating component to maintain not starting heating;

[0036] When the second direction signal is received and m2 pulse signals are not received, determining that the aerosol generating substrate has not left the heating position, and triggering and controlling the heating component to maintain the heating state;

[0037] And when the first direction signal and the second direction signal are received at intervals, it is determined that the aerosol generating substrate has not reached the heating position or has not left the heating position, and the heating component is triggered to control the heating component to maintain the current state.

[0038] A second aspect of an embodiment of the present invention provides a heating method for heating an aerosol generating substrate, the heating method comprising the following steps performed by a main control circuit of the heating device as described above:

[0039] When the aerosol generating substrate is inserted, upon receiving a first electrical signal output by a detection circuit, triggering and controlling the heating component to heat;

[0040] When the aerosol generating substrate is pulled out and the second electrical signal output by the detection circuit is received, the heating component is triggered to stop heating.

[0041] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: the above-mentioned heating device is composed of a heating mechanism, a roller mechanism, a detection circuit and a main control circuit. When the aerosol generating substrate is inserted into or pulled out of the accommodating cavity, the roller mechanism rotates in the corresponding direction. The detection circuit determines the position of the aerosol generating substrate relative to the accommodating cavity by detecting the movement direction and movement stroke of the roller mechanism, and outputs a corresponding electrical signal to the main control circuit. The main control circuit detects and processes the electrical signal, determines the state of the aerosol generating substrate, and then triggers the heating component to start or stop heating the atomized medium in the aerosol generating substrate. The heating device does not need to be provided with a trigger detection mechanism such as an electrical sensor or a mechanical switch, thereby reducing interference from factors such as high temperature and electromagnetics, reducing misjudgment and false triggering, and improving detection and atomization reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 A schematic diagram of the first structure of the atomization device provided in an embodiment of the present invention;

[0044] Figure 2 A second structural schematic diagram of an atomization device provided in an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of a first movement direction of an aerosol generating substrate provided in an embodiment of the present invention;

[0046] Figure 4 A schematic diagram of a second movement direction of an aerosol generating substrate provided in an embodiment of the present invention;

[0047] Figure 5 A schematic diagram of a first structure of a heating device provided in an embodiment of the present invention;

[0048] Figure 6 A schematic diagram of the structure of a roller mechanism provided in an embodiment of the present invention;

[0049] Figure 7 A second structural schematic diagram of a heating device provided in an embodiment of the present invention;

[0050] Figure 8 A third structural schematic diagram of a heating device provided in an embodiment of the present invention;

[0051] Fig. 9 A schematic flow chart of a heating method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0054] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] A first aspect of an embodiment of the present invention provides a heating device 100 .

[0057] like Figure 1 and Figure 2 As shown, the heating device 100 is used to heat the aerosol generating substrate 200. The aerosol generating substrate 200 and the heating device 100 are arranged in a plug-in structure. When the aerosol generating substrate 200 is inserted into the heating device 100 and reaches the heating position, the heating device 100 starts heating, and when the aerosol generating substrate 200 is pulled out and leaves the heating position, the heating device 100 stops heating. An atomizing medium is arranged in the aerosol generating substrate 200, and the atomizing medium generates an aerosol when being heated.

[0058] In order to reduce the problem of misjudgment or mis-triggering in the state detection of the aerosol generating substrate 200 , in this embodiment, the heating device 100 includes a heating mechanism 10 , a roller mechanism 20 , a detection circuit 30 and a main control circuit 40 .

[0059] Among them, the heating mechanism 10 is provided with a accommodating cavity 12 for accommodating the aerosol generating matrix 200, and the accommodating cavity 12 has an opening 11 for inserting and removing the aerosol generating matrix 200. The heating mechanism 10 is also provided with a heating component 13 for heating the aerosol generating matrix 200. The shape of the accommodating cavity 12 is adapted to the aerosol generating matrix 200. For example, when the aerosol generating matrix 200 is a columnar structure, the accommodating cavity 12 is also set to a columnar structure, and the internal size of the accommodating cavity 12 is larger than the size of the aerosol generating matrix 200 and the size is close to that of the aerosol generating matrix 200, so as to perform a limiting effect when the aerosol generating matrix 200 is inserted and removed.

[0060] The accommodating cavity 12 is a hollow structure, and the accommodating cavity 12 can be generated by surrounding thin sheets of corresponding materials. For example, a metal thin sheet is surrounded by welding, clamping, etc. to form a accommodating cavity 12. An opening 11 is left at one end of the accommodating cavity 12 for plugging and unplugging the aerosol generating matrix 200.

[0061] Alternatively, the accommodating cavity 12 may also be generated by opening a hole on the corresponding substrate, for example, the accommodating cavity 12 may be generated on a substrate of silicon material or metal material by deposition, drilling, etc., and the hole opening is the opening 11 of the accommodating cavity 12 .

[0062] The heating component 13 is specifically arranged relative to the accommodating chamber 12 according to the structure of the aerosol generating substrate 200 and the installation position of the atomizing medium. It can be arranged at a corresponding position on the inner wall, bottom or outside of the accommodating chamber 12. In an optional embodiment, the aerosol generating substrate 200 is a columnar structure, and the aerosol generating substrate 200 at least includes a medium segment 210 and a filter segment 220. The medium segment 210 is provided with an atomizing medium, and the filter segment 220 is provided with a filter element for filtering out impurities. When the aerosol generating substrate 200 is heated, the medium segment 210 is inserted from the opening 11 of the accommodating chamber 12 and directly reaches the corresponding heating position of the accommodating chamber 12. Corresponding to the structure of the aerosol generating substrate 200, optionally, the accommodating chamber 12 is a columnar structure, and the heating component 13 is located at the bottom of the accommodating chamber 12, or is arranged outside the accommodating chamber 12 and relative to the bottom of the accommodating chamber 12.

[0063] When the heating component 13 is set at the bottom of the accommodating chamber 12, when the medium segment 210 reaches the heating position, the heating component 13 directly heats the medium segment 210; and, when the heating component 13 is set outside the accommodating chamber 12 and relative to the bottom of the accommodating chamber 12, when the medium segment 210 reaches the heating position, the heating component 13 indirectly heats the medium segment 210 through the cavity of the accommodating chamber 12.

[0064] The roller mechanism 20 is arranged on the heating mechanism 10 or opposite to the heating mechanism 10, and contacts and rotates with the aerosol generating matrix 200 when the aerosol generating matrix 200 is inserted or pulled out. When the aerosol generating matrix 200 is plugged in or pulled out, the roller mechanism 20 contacts the side of the aerosol generating matrix 200, and the aerosol generating matrix 200 drives the roller mechanism 20 to rotate. The rotation direction and rotation angle represent the plugging and pulling direction and the plugging and pulling relative position of the aerosol generating matrix 200. The roller mechanism 20 can be fixedly installed on the heating mechanism 10, or fixedly installed on other components. The roller mechanism 20 is arranged relative to the opening 11, middle or bottom of the accommodating cavity 12. In order to improve the detection accuracy and increase the detection range, the roller mechanism 20 is arranged close to the opening 11 of the accommodating cavity 12. In an optional embodiment, such as Figure 1 As shown, the roller mechanism 20 is disposed obliquely above the opening 11 of the accommodating chamber 12 , and the roller mechanism 20 contacts the aerosol generating substrate 200 before the accommodating chamber 12 .

[0065] In another alternative embodiment, if Figure 5 As shown, an opening 11 is provided on the side wall of the accommodating cavity 12, and a roller mechanism 20 is disposed at the opening 11 of the side wall of the accommodating cavity 12 and extends to the interior of the accommodating cavity 12. The roller mechanism 20 contacts and rotates with the aerosol generating matrix 200 when the aerosol generating matrix 200 is inserted or removed.

[0066] The detection circuit 30 is configured to convert the movement direction and movement stroke of the roller mechanism 20 into a corresponding first electrical signal when the aerosol generating matrix 200 is inserted, or to convert the movement direction and movement stroke of the roller mechanism 20 into a corresponding second electrical signal when the aerosol generating matrix 200 is pulled out.

[0067] The main control circuit 40 is connected to the detection circuit 30 and the heating component 13 respectively, and is configured to trigger and control the heating component 13 to start heating according to the first electrical signal, and to trigger and control the heating component 13 to stop heating according to the second electrical signal.

[0068] In this embodiment, when the aerosol generating substrate 200 is inserted into the receiving cavity 12, Figure 3 As shown, when the aerosol generating matrix 200 moves from the first position Y1 to the second position Y2, the roller mechanism 20 rotates in a first direction, and the detection circuit 30 outputs a first electrical signal to the main control circuit 40 according to the rotation direction and rotation angle of the roller mechanism 20. The main control circuit 40 determines whether the aerosol generating matrix 200 reaches the heating position according to the first electrical signal and the preset electrical signal. When the first electrical signal matches the preset electrical signal, it indicates that the aerosol generating matrix 200 has been inserted into place and has reached the heating position. The main control circuit 40 outputs a heating signal to the heating component 13, controls the heating component 13 to start the heating operation, and heats the atomized medium in the aerosol generating matrix 200.

[0069] As well as Figure 4 As shown, when the aerosol generating matrix 200 is pulled out from the accommodating chamber 12, the aerosol generating matrix 200 leaves the second position Y2, and the roller mechanism 20 rotates in a second direction, which is opposite to the first direction. The detection circuit 30 outputs a second electrical signal to the main control circuit 40 according to the rotation direction and rotation angle of the roller mechanism 20. The main control circuit 40 determines whether the aerosol generating matrix 200 has left the heating position according to the second electrical signal and the preset electrical signal. When the second electrical signal matches the preset electrical signal, it indicates that the aerosol generating matrix 200 has left the heating position. The main control circuit 40 immediately outputs a shutdown signal to the heating component 13 or waits for the aerosol generating matrix 200 to leave the accommodating chamber 12 before outputting a shutdown signal to the heating component 13, thereby controlling the heating component 13 to stop heating.

[0070] Among them, the heating position can be set according to the needs. For example, the middle position of the accommodating chamber 12 is the heating position, and the heating is started when the aerosol generating matrix 200 reaches the middle position of the accommodating chamber 12, and the heating is stopped when it leaves the middle position. Alternatively, the bottom position of the accommodating chamber 12 is the heating position, and the heating is started when the aerosol generating matrix 200 reaches the bottom of the accommodating chamber 12, and the heating is stopped when it leaves the bottom.

[0071] In an optional embodiment, the heating component 13 includes a plurality of heating zones, the plurality of heating zones corresponding to different regions of the accommodating cavity 12, and the plurality of heating zones can work independently or simultaneously;

[0072] The main control circuit 40 is further configured to determine the position of the aerosol generating substrate 200 in the containing chamber 12 according to the electrical signal, and control the operation of the corresponding heating interval according to the position.

[0073] When multiple heating intervals are included, for example, the middle to the bottom of the accommodating chamber 12 is equally or unequally divided into a first heating area to an nth heating area, each area is assigned a heating interval, and each heating interval can correspond to the same heating temperature or a different heating temperature. When the aerosol generating matrix 200 is inserted along the opening of the accommodating chamber 12, during the movement, the roller mechanism 20 moves, and the detection circuit 30 outputs a first electrical signal accordingly. The main control circuit 40 determines that the aerosol generating matrix 200 moves to a corresponding heating area or multiple heating areas from the first heating area to the nth heating area according to the change of the first electrical signal. The main control circuit 40 controls the matching heating intervals to perform separate or simultaneous heating according to the position information, and when the aerosol generating matrix 200 is pulled out, for example, when leaving the first heating area to a corresponding heating area or multiple heating areas in the nth heating area, the main control circuit 40 determines the position information of the aerosol generating matrix 200 according to the change of the second electrical signal, and controls the matching one or more heating intervals to stop heating according to the position information, thereby realizing heating control of a single position or multiple positions of the aerosol generating matrix 200, and improving heating diversity and heating efficiency.

[0074] In order to improve the position detection accuracy of the aerosol generating substrate 200, the detection circuit 30 is optionally used to:

[0075] When the roller mechanism 20 rotates along the first direction, it outputs a first direction signal and sequentially outputs a plurality of pulse signals;

[0076] When the roller mechanism 20 rotates along the second direction, a second direction signal is output and a plurality of pulse signals are output in sequence;

[0077] The main control circuit 40 is specifically used for:

[0078] When the first direction signal and m1 pulse signals are received, it is determined that the aerosol generating substrate has reached the heating position, and the heating component 13 is triggered to start heating;

[0079] When receiving the second direction signal and m2 pulse signals, the heating component 13 is triggered to stop heating;

[0080] Among them, m1 and m2 are positive integers.

[0081] In this embodiment, when the roller mechanism 20 rotates, the detection circuit 30 outputs a direction signal on the one hand, and outputs a pulse signal representing the rotation angle of the roller mechanism 20 and the movement stroke of the aerosol generating substrate 200 on the other hand.

[0082] Specifically, when the aerosol generating substrate 200 is inserted into the receiving chamber 12, as shown in FIG. Figure 3 As shown, when the aerosol generating matrix 200 moves from the first position Y1 to the second position Y2, the roller mechanism 20 rotates along the first direction, and the detection circuit 30 outputs a first direction signal according to the rotation direction of the roller mechanism 20. When the roller mechanism 20 rotates, the detection circuit 30 synchronously and sequentially outputs pulse signals, and the number of pulse signals represents the rotation angle of the roller mechanism 20 and the insertion stroke of the aerosol generating matrix 200. The main control circuit 40 determines that the aerosol generating matrix 200 is inserted according to the first direction signal, and synchronously compares whether the number of pulse signals reaches m1. When the number of pulses reaches m1, the main control circuit 40 determines that the aerosol generating matrix 200 has reached the heating position, and the main control circuit 40 outputs a heating signal to the heating component 13, controls the heating component 13 to start the heating operation, and heats the atomized medium in the aerosol generating matrix 200.

[0083] As well as Figure 4 As shown, when the aerosol generating matrix 200 is pulled out from the accommodating chamber 12, the aerosol generating matrix 200 leaves the second position Y2, and the roller mechanism 20 rotates in the second direction. The detection circuit 30 outputs a second direction signal according to the rotation direction of the roller mechanism 20. When the roller mechanism 20 rotates, the detection circuit 30 synchronously and sequentially outputs pulse signals. The number of pulse signals represents the reverse rotation angle of the roller mechanism 20 and the pulling-out stroke of the aerosol generating matrix 200. The main control circuit 40 determines that the aerosol generating matrix 200 is pulled out of the accommodating chamber 12 according to the second direction signal, and synchronously compares whether the number of pulse signals reaches m2. When the number of pulses reaches m2, it indicates that the aerosol generating matrix 200 has left the heating position. The main control circuit 40 immediately outputs a shutdown signal to the heating component 13 or waits for the aerosol generating matrix 200 to leave the accommodating chamber 12 before outputting a shutdown signal to the heating component 13 to control the heating component 13 to stop heating.

[0084] Further, in order to reduce the power consumption of the heating device 100 and avoid extra power consumption caused by long-term standby, the main control circuit 40 is optionally further configured as follows:

[0085] When no pulse signal is received within the first preset time period after the heating is completed, the heating device 100 is triggered to enter a dormant state.

[0086] In this embodiment, after the aerosol generating matrix 200 leaves the containing cavity 12 and the heating device 100 stops heating, within the first preset time, when no aerosol generating matrix 200 is inserted into the containing cavity 12, that is, when the detection circuit 30 does not detect and output the first electrical signal, at this time, the main control circuit 40 controls each module circuit in the heating device 100 to enter a sleep state, and the heating device 100 enters a low power consumption mode to reduce standby power consumption.

[0087] In the dormant state, the roller mechanism 20 and the detection circuit 30 remain in the working state and monitor the generation of the first electrical signal, that is, monitor whether the aerosol generating substrate 200 has a new insertion action. In order to realize the awakening operation of the heating device 100, optionally, the main control circuit 40 is further configured as follows:

[0088] In the sleep state, when the first direction signal is received, the heating device 100 is triggered to exit the sleep state and enter the working mode, and after receiving a preset number of pulse signals, the heating component 13 is controlled to perform heating again.

[0089] For example, after the heating device 100 stops heating and after a first preset time, the detection circuit 30 re-outputs the first electrical signal, indicating that an aerosol generating matrix 200 is currently inserted into the accommodating cavity 12. The main control circuit 40 controls the heating device 100 to exit the sleep state and enter the working state, and determines whether the aerosol generating matrix 200 has reached the heating position based on the received first electrical signal, and when it reaches the heating position, controls the heating component 13 to start heating.

[0090] In order to further improve the heating efficiency and heating accuracy, optionally, the main control circuit 40 is further configured as follows:

[0091] When no pulse signal is received within the second preset time after exiting the sleep state, the heating device 100 is triggered to re-enter the sleep state.

[0092] Similarly, when in the working state, the aerosol generating matrix 200 only has an insertion action but does not continue to be inserted along the accommodating cavity, it indicates that the current aerosol generating matrix 200 has not reached the heating position and does not need to be heated. At this time, the main control circuit 40 controls the heating device 100 to re-enter the sleep state to reduce standby power consumption.

[0093] In order to further reduce the heating power and improve the heating efficiency, optionally, the main control circuit 40 is further configured as follows:

[0094] When the first direction signal is received and m1 pulse signals are not received, it is determined that the aerosol generating substrate 200 has not reached the heating position, and the heating component 13 is triggered to maintain the non-starting of heating;

[0095] When the second direction signal is received and m2 pulse signals are not received, it is determined that the aerosol generating substrate 200 has not left the heating position, and the heating component 13 is triggered to maintain the heating state;

[0096] And when the first direction signal and the second direction signal are received at intervals, it is determined that the aerosol generating substrate 200 has not reached the heating position or has not left the heating position, and the heating component 13 is triggered to control the heating component 13 to maintain the current state.

[0097] In this embodiment, heating is controlled according to the relative position relationship between the aerosol generating substrate 200 and the heating position to achieve precise heating. Specifically, during the insertion of the aerosol generating substrate 200 along the accommodating cavity 12, the roller mechanism 20 rotates, and the detection circuit 30 outputs a first direction signal and a preset number of pulse signals. When the number of pulse signals does not reach m1, it indicates that the aerosol generating substrate 200 has not reached the heating position. At this time, the main control circuit 40 controls the heating component 13 not to start heating until the number of pulses reaches m1, indicating that the aerosol generating substrate 200 has reached the heating position. The main control circuit 40 triggers the heating component 13 to start heating.

[0098] Similarly, when the aerosol generating matrix 200 is pulled out of the accommodating chamber 12, the roller mechanism 20 rotates, and the detection circuit 30 outputs a second direction signal and a preset number of pulse signals. When the number of pulse signals does not reach m2, it indicates that the aerosol generating matrix 200 has not left the heating position. At this time, the main control circuit 40 controls the heating component 13 to continue to maintain the heating state until the number of pulses reaches m2, indicating that the aerosol generating matrix 200 has left the heating position. The main control circuit 40 triggers the control of the heating component 13 to stop heating.

[0099] Also, when the aerosol generating matrix 200 is being inserted and pulled out at the same time, when the main control circuit 40 receives the first direction signal and the second direction signal at intervals, it indicates that the aerosol generating matrix 200 has not reached the heating position. At this time, the main control circuit 40 controls the heating component 13 to continue to maintain the non-starting heating state to avoid erroneous heating and improve the heating accuracy. Alternatively, when the aerosol generating matrix 200 is being pulled out and inserted at the same time, the main control circuit 40 detects and receives the second electrical signal and the first electrical signal, indicating that the aerosol generating matrix 200 has not left the heating position. At this time, the main control circuit 40 controls the heating component 13 to continue to maintain the heating state to avoid erroneous heating stop and improve the heating accuracy.

[0100] The heating component 13 can be a heating element, such as a resistance heating component, a heating component composed of a magnetic core and a heating coil, etc., and the specific structure is not limited.

[0101] The main control circuit 40 may include a controller, a processor, a driving circuit, and the like.

[0102] The power supply source of the main control circuit 40, the heating component 13, and the detection circuit 30 can be provided by the corresponding power supply module. The power supply module can be set in the heating device 100 or set independently from the heating device 100. The specific setting method of the power supply module is not limited.

[0103] The main control circuit 40, the detection circuit 30 and the power module can be arranged on the same circuit board, or separately arranged, and the specific arrangement method is not limited.

[0104] The heating device 100 can be a fixed device structure, or a portable device, such as Figure 1 As shown, optionally, the heating device 100 further includes a housing 50 , and the heating mechanism 10 , the roller mechanism 20 , the detection circuit 30 and the main control circuit 40 are disposed in the housing 50 .

[0105] The outer shell 50 is formed by surrounding a sheet of corresponding material, and includes a shell and an upper cover that are adapted to be installed. The upper cover is provided with an opening at a position relative to the opening 11 of the accommodating cavity 12. For the convenience of maintenance, the shell and the upper cover are detachably installed.

[0106] The detection circuit 30 can be selected according to the roller mechanism 20, such as Figure 5 and Figure 6 As shown, the detection circuit 30 includes a rotary encoder 31, and the roller mechanism 20 includes:

[0107] A bracket 22, which is mounted on the heating mechanism 10;

[0108] The friction wheel 21 is fixedly mounted on the bracket 22. The friction wheel 21 is at least partially located in the accommodating cavity 12 or the friction wheel 21 is located above the opening 11 of the accommodating cavity 12, and contacts the aerosol generating substrate 200 and rotates forward or reversely when the aerosol generating substrate 200 is inserted or removed.

[0109] The transmission mechanism is connected with the friction wheel 21 and the rotary encoder 31 . The transmission mechanism is configured to link the friction wheel 21 and the rotary encoder 31 .

[0110] In this embodiment, the rotary encoder 31 rotates synchronously with the roller mechanism 20, and converts the mechanical rotation of the roller mechanism 20 into an electrical signal. The electrical signal can be a digital signal or an analog signal. After processing the signal, the angular displacement and angular velocity of the roller mechanism 20 and other motion quantities are obtained. It has the characteristics of high reliability, environmental practicality and control performance. Among them, the rotary encoder 31 can adopt a mechanical rotary encoder, a photoelectric rotary encoder, a magnetic induction rotary encoder, etc. according to the detection requirements and technologies.

[0111] For example, the photoelectric rotary encoder 31 includes an LED light source, a photodetector and a code disk arranged between the LED light source and the photodetector. A series of light-transmitting and opaque wire grooves are arranged at intervals on the code disk. When the code disk rotates, the light emitted by the LED light source is continuously turned on and off by the wire grooves of the code disk, and the photodetector generates a corresponding pulse signal. The multi-channel signal is encoded and processed by the main control circuit 40 to determine the angular displacement and angular velocity of the rotation and other motion quantities, thereby determining the plug-in and unplug status of the aerosol generating matrix 200, thereby realizing the heating control work of the heating component 13.

[0112] The bracket 22 is used to fix the friction wheel 21. The surface of the friction wheel 21 has a friction surface such as teeth or rubber. When the aerosol generating matrix 200 moves relative to the accommodating chamber 12, friction drives the friction wheel 21 to rotate. The friction wheel 21 drives the rotary encoder 31 through the transmission mechanism. The rotary encoder 31 rotates synchronously with the roller mechanism and converts the mechanical rotation of the roller mechanism 20 into an electrical signal. The main control circuit 40 determines the relative position of the aerosol generating matrix 200 according to the type, size and number of the electrical signals, and controls the heating component 13 to perform heating or stop heating.

[0113] The bracket 22 is mounted on the accommodating cavity 12, and the rotary encoder 31 can be mounted on the accommodating cavity 12 or on the housing 50 through another bracket 22. The transmission mechanism can be selected according to the structure of the friction wheel 21, such as a connecting rod, a gear, a rack, a chain, a belt, etc. In an optional embodiment, optionally, as Figure 6 As shown, the transmission mechanism includes a transmission belt 23 , and the transmission belt 23 is used to drive the friction wheel 21 and the rotary encoder 31 .

[0114] The bracket 22 for mounting the friction wheel 21 may be a rigid bracket 22 or an elastic bracket 22. Optionally, Figure 7 As shown, the bracket includes a first connecting rod 221 and a second connecting rod 222 connected to each other. The first connecting rod 221 is fixedly mounted on the heating mechanism 10, and the second connecting rod 222 is fixedly mounted on the friction wheel 21. The first connecting rod 221 and the second connecting rod 222 are integrally arranged or connected by welding or clamping, and the two constitute a rigid bracket.

[0115] In order to reduce the force of the friction wheel 21 on the surface of the aerosol generating substrate 200 and reduce scratches, optionally, the bracket includes a first connecting rod 221 and a second connecting rod 222 connected to each other, and the bracket also includes an elastic member 223;

[0116] The first connecting rod 221 is mounted on the heating mechanism 10 via the elastic member 223 , and / or the first connecting rod 221 is connected to the second connecting rod 222 via the elastic member 223 , and / or the second connecting rod 222 is elastically mounted to the friction wheel 21 via the elastic member 223 .

[0117] For example Figure 8 As shown, an elastic member 223 is provided between the first connecting rod 221 and the second connecting rod 222, and the friction wheel 21 is in elastic contact with the aerosol generating matrix 200. On the one hand, the force acting on the aerosol generating matrix 200 can be reduced. On the other hand, when the surface of the aerosol generating matrix 200 is uneven, due to the existence of elastic force, the friction wheel 21 can contact the surface of the same path of the aerosol generating matrix 200, thereby improving the detection accuracy. The elastic force and size of the elastic member 223 can be adjusted according to the roller movement requirements and the distance between the aerosol generating matrix 200, and the specific parameters are not limited.

[0118] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: the above-mentioned heating device 100 is composed of a heating mechanism 10, a roller mechanism 20, a detection circuit 30 and a main control circuit 40. When the aerosol generating matrix 200 is inserted into or pulled out of the accommodating cavity 12, the roller mechanism 20 rotates in the corresponding direction. The detection circuit 30 determines the position of the aerosol generating matrix 200 relative to the accommodating cavity 12 by detecting the movement direction and movement stroke of the roller mechanism 20, and outputs a corresponding electrical signal to the main control circuit 40. The main control circuit 40 detects and processes the electrical signal, determines the state of the aerosol generating matrix 200, and then triggers the heating component 13 to start or stop heating the atomized medium in the aerosol generating matrix 200. The heating device 100 does not need to be provided with a trigger detection mechanism such as an electrical sensor or a mechanical switch, thereby reducing interference from factors such as high temperature and electromagnetics, reducing misjudgment and false triggering, and improving detection and atomization reliability.

[0119] A second aspect of an embodiment of the present invention provides a heating method for heating an aerosol generating substrate 200, such as Fig. 9 As shown, the heating method includes the following steps performed by the main control circuit 40 of the heating device 100:

[0120] Step S10, when the aerosol generating substrate 200 is inserted, upon receiving the first electrical signal output by the detection circuit 30, the heating component 13 is triggered to be heated;

[0121] Step S20: When the aerosol generating substrate 200 is pulled out, upon receiving the second electrical signal output by the detection circuit 30, the heating component 13 is triggered to stop heating.

[0122] In this embodiment, when the aerosol generating substrate 200 is inserted into the receiving cavity 12, Figure 3As shown, when the aerosol generating matrix 200 moves from the first position Y1 to the second position Y2, the roller mechanism 20 rotates in a first direction, and the detection circuit 30 outputs a first electrical signal to the main control circuit 40 according to the rotation direction and rotation angle of the roller mechanism 20. The main control circuit 40 determines whether the aerosol generating matrix 200 reaches the heating position according to the first electrical signal and the preset electrical signal. When the first electrical signal matches the preset electrical signal, it indicates that the aerosol generating matrix 200 has been inserted into place and has reached the heating position. The main control circuit 40 outputs a heating signal to the heating component 13, controls the heating component 13 to start the heating operation, and heats the atomized medium in the aerosol generating matrix 200.

[0123] As well as Figure 4 As shown, when the aerosol generating matrix 200 is pulled out from the accommodating chamber 12, the aerosol generating matrix 200 leaves the second position Y2, and the roller mechanism 20 rotates in a second direction, which is opposite to the first direction. The detection circuit 30 outputs a second electrical signal to the main control circuit 40 according to the rotation direction and rotation angle of the roller mechanism 20. The main control circuit 40 determines whether the aerosol generating matrix 200 has left the heating position according to the second electrical signal and the preset electrical signal. When the second electrical signal matches the preset electrical signal, it indicates that the aerosol generating matrix 200 has left the heating position. The main control circuit 40 immediately outputs a shutdown signal to the heating component 13 or waits for the aerosol generating matrix 200 to leave the accommodating chamber 12 before outputting a shutdown signal to the heating component 13, thereby controlling the heating component 13 to stop heating.

[0124] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A heating device, characterized in that: include: A heating mechanism, wherein the heating mechanism is provided with a receiving cavity for receiving an aerosol generating substrate, the receiving cavity having an opening for inserting and removing the aerosol generating substrate, and the heating mechanism is further provided with a heating component for heating the aerosol generating substrate; A roller mechanism, the roller mechanism being arranged on the heating mechanism or opposite to the heating mechanism, and being in contact with the aerosol generating substrate and rotating when the aerosol generating substrate is inserted or removed; a detection circuit configured to convert the movement direction and movement stroke of the roller mechanism into a corresponding first electrical signal when the aerosol generating substrate is inserted, or to convert the movement direction and movement stroke of the roller mechanism into a corresponding second electrical signal when the aerosol generating substrate is pulled out; The main control circuit is connected to the detection circuit and the heating component respectively, and is configured to trigger and control the heating component to start heating according to the first electrical signal, and to trigger and control the heating component to stop heating according to the second electrical signal.

2. The heating device according to claim 1, characterized in that The detection circuit is specifically configured as follows: When the roller mechanism rotates along a first direction, a first direction signal is output and a plurality of pulse signals are output in sequence; When the roller mechanism rotates in the second direction, a second direction signal is output and a plurality of pulse signals are output in sequence; The main control circuit is specifically configured as follows: When the first direction signal and m1 pulse signals are received, determining that the aerosol generating substrate has reached the heating position, and triggering and controlling the heating component to start heating; or when receiving the second direction signal and m2 pulse signals, determining that the aerosol generating substrate leaves the heating position, and triggering and controlling the heating component to stop heating; Among them, m1 and m2 are positive integers.

3. The heating device according to claim 1, characterized in that The detection circuit includes a rotary encoder, and the roller mechanism includes: A bracket, the bracket being mounted on the heating mechanism; A friction wheel, wherein the friction wheel is fixedly mounted on the bracket, the friction wheel is at least partially located in the accommodating cavity or the friction wheel is located above the opening of the accommodating cavity, and contacts the aerosol generating substrate and rotates forward or reversely when the aerosol generating substrate is inserted or removed; A transmission mechanism is connected to the friction wheel and the rotary encoder, and the transmission mechanism is configured to link the friction wheel and the rotary encoder.

4. The heating device according to claim 3, characterized in that The bracket comprises a first connecting rod and a second connecting rod connected to each other, the first connecting rod is fixedly mounted on the heating mechanism, and the second connecting rod is fixedly mounted on the friction wheel; Alternatively, the bracket includes a first connecting rod and a second connecting rod connected to each other, and the bracket also includes an elastic member; The first connecting rod is mounted on the heating mechanism via the elastic member, and / or the first connecting rod is connected to the second connecting rod via the elastic member, and / or the second connecting rod is elastically mounted to the friction wheel via the elastic member.

5. The heating device according to claim 1, characterized in that The heating component includes a plurality of heating zones, the plurality of heating zones correspond to different areas of the accommodating cavity, and the plurality of heating zones can work independently or simultaneously; The main control circuit is further configured to determine the position of the aerosol generating substrate in the containing cavity according to the electrical signal, and control the operation of the corresponding heating interval according to the position.

6. The heating device according to claim 2, characterized in that The main control circuit is further configured as: When the pulse signal is not received within a first preset time period after the heating is completed, the heating device is triggered to enter a dormant state.

7. The heating device according to claim 6, characterized in that The main control circuit is further configured as: In the sleep state, when the first direction signal is received, the heating device is triggered to control the heating device to exit the sleep state.

8. The heating device according to claim 7, characterized in that The main control circuit is also configured as: When the pulse signal is not received within the second preset time after exiting the sleep state, the heating device is triggered to control the heating device to re-enter the sleep state.

9. The heating device according to claim 2, characterized in that: The main control circuit is further configured as: When the first direction signal is received and m1 pulse signals are not received, determining that the aerosol generating substrate has not reached the heating position, and triggering and controlling the heating component to maintain not starting heating; When the second direction signal is received and m2 pulse signals are not received, determining that the aerosol generating substrate has not left the heating position, and triggering and controlling the heating component to maintain the heating state; And when the first direction signal and the second direction signal are received at intervals, it is determined that the aerosol generating substrate has not reached the heating position or has not left the heating position, and the heating component is triggered to control the heating component to maintain the current state.

10. A heating method, characterized in that: For heating an aerosol generating substrate, the heating method comprises the following steps performed by a main control circuit of the heating device according to any one of claims 1 to 9: When the aerosol generating substrate is inserted, upon receiving a first electrical signal output by a detection circuit, triggering and controlling the heating component to heat; When the aerosol generating substrate is pulled out and the second electrical signal output by the detection circuit is received, the heating component is triggered to stop heating.

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