Uniform heating atomization control method with alternating switching of pulse electrodes

Through the uniform heating atomization control method of alternating pulse electrode switching, the problem of uneven heat exposure to tobacco sheets during the atomization process is solved, and the rapid and uniform atomization effect is achieved, which improves the user experience.

CN112910456BActive Publication Date: 2025-03-11CHINA TOBACCO HENAN IND CO LTD
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Patent Information

Application Number
CN202110066184.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-18
Publication Date
2025-03-11
Estimated Expiration
2041-01-18

AI Technical Summary

Technical Problem

Among the existing heating-not-burning instruments, the tobacco sheets have problems such as uneven heating and insufficient heating during the atomization process. The heating efficiency of traditional electric heating rods is low and the power consumption is large, which affects the number of power use of the instrument.

Method used

Using a uniform heating atomization control method of alternating pulse electrodes, a pulse enable signal is generated by counting the number of suction ports, a high-voltage electrical signal is further generated, and a high-voltage electrical electrode is switched between multiple negative electrodes of the pulse output electrode to generate a high-voltage arc to achieve pulse atomization.

Benefits of technology

It realizes rapid and uniform atomization of tobacco flakes, reduces heating hysteresis, improves the consistency of flake atomization, ensures the suction taste, and improves the user experience.

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Abstract

The present invention discloses a uniform heating atomization control method with pulse electrode alternating switching, which comprises: in the process of smoking a heating non-combustion device, counting the number of puffs to obtain the puff number information; generating a pulse enable signal according to the puff number information; generating a high-voltage electrical signal according to the pulse enable signal; switching between multiple negative electrodes of a pulse output electrode according to the puff number information and the pulse enable signal, so that the positive electrode of the pulse output electrode is connected to the gated negative electrode, and the high-voltage electrical signal generates a high-voltage arc in the air between the positive electrode of the pulse output electrode and the gated negative electrode, thereby realizing pulse atomization. The uniform heating atomization control method with pulse electrode alternating switching of the present invention adopts an electrode switch rotating pulse ignition mode to realize uniform heating atomization of a heating device, can heat tobacco slices in different directions, and has the advantages of rapid heating, uniform atomization, and high heating efficiency, and can also improve the consistency of atomization of the slices and ensure the smoking taste.
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Description

Technical Field

[0001] The invention relates to the technical field of heating-without-burning appliances, and in particular to a uniform heating atomization control method with alternate switching of pulse electrodes. Background Art

[0002] At present, the smoke atomization of heat-not-burn cigarettes is carried out by using built-in or external heating rods or heating rings to atomize tobacco sheets. Due to the uneven contact area and distance between the heating rods and the sheets, the tobacco sheets suffer from problems such as uneven heating and insufficient heating during the atomization process. Moreover, the traditional electric heating rod heating method releases heat by resistive heating, which has a certain heating time hysteresis, and the electric heat conversion efficiency is low, the power consumption is large, and the number of times the power supply of the device is used.

[0003] Therefore, a uniform heating atomization control method with alternating switching of pulse electrodes is urgently needed. Summary of the invention

[0004] The object of the present invention is to provide a uniform heating atomization control method with alternating switching of pulse electrodes to solve the above-mentioned problems in the prior art and to improve the uniformity of heating without burning atomization and taste.

[0005] The present invention provides a uniform heating atomization control method with alternating switching of pulse electrodes, which comprises:

[0006] During the process of smoking the heat-not-burn device, the number of puffs is counted to obtain puff number information;

[0007] Generate a pulse enable signal according to the port number information;

[0008] generating a high voltage electrical signal according to the pulse enable signal;

[0009] According to the number of ports information and the pulse enable signal, switch between multiple negative electrodes of the pulse output electrode to make the positive electrode of the pulse output electrode and the selected negative electrode conductive, and make the high-voltage electrical signal generate a high-voltage arc in the air between the positive electrode of the pulse output electrode and the selected negative electrode, thereby realizing pulse atomization.

[0010] The uniform heating atomization control method with alternating pulse electrodes as described above, wherein preferably, during the process of smoking the heating-without-burning device, the number of puffs is counted to obtain the puff number information, specifically including:

[0011] A four-bit counter is used to calculate and encode the puff signal pulses during the puffing process, and four-bit parallel binary coded information is output as puff number coded information.

[0012] The uniform heating atomization control method with alternating switching of pulse electrodes as described above, wherein preferably, the four-bit counter is used to calculate and encode the puff signal pulses during the puffing process, and output four-bit parallel binary coded information as the puff number coded information, specifically including:

[0013] Setting the maximum count value of the four-bit counter to be equal to the number of negative electrodes of the pulse output electrodes;

[0014] In each counting cycle, the four-bit counter calculates and encodes the puff signal pulses during the puffing process, and outputs four-bit parallel binary encoding information corresponding to each negative electrode of the pulse output electrode, so as to ensure that each negative electrode of the pulse output electrode is switched once in each counting cycle.

[0015] The uniform heating atomization control method with alternating switching of pulse electrodes as described above, wherein preferably, the method of calculating and encoding the puff signal pulses during the puffing process using a four-bit counter and outputting four-bit parallel binary coded information as the puff number coded information, further comprises:

[0016] Using an airflow pressure sensor connected to the filter insertion assembly, the inhalation action of the cigarette filter inserted into the filter insertion assembly is detected to generate a suction signal;

[0017] The suction signal generated by the airflow pressure sensor is smoothed by a filter shaping circuit arranged between the airflow pressure sensor and the four-bit counter.

[0018] The uniform heating atomization control method with alternating switching of pulse electrodes as described above, wherein preferably, the pulse enable signal is generated according to the puff number information, specifically comprising:

[0019] The enable control circuit is used to output a pulse enable signal according to the port number information.

[0020] The uniform heating atomization control method with alternating switching of pulse electrodes as described above, wherein preferably, generating a high voltage electrical signal according to the pulse enable signal specifically includes:

[0021] Amplifying the pulse enable signal using a current amplifier;

[0022] A transformer is used to induce a high voltage electrical signal according to the amplified pulse enable signal.

[0023] The uniform heating atomization control method with alternating switching of pulse electrodes as described above, wherein preferably, the step of using a transformer to induce a high voltage electrical signal according to the amplified pulse enable signal specifically includes:

[0024] The pulse enable signal generated by the enable control circuit is amplified by the current amplifier and flows into the negative turn coil of the transformer, and a high-voltage electrical signal is induced in the positive turn coil of the transformer through mutual inductance.

[0025] The uniform heating atomization control method with alternating switching of pulse electrodes as described above, wherein preferably, the switching between multiple negative electrodes of the pulse output electrode according to the puff number information and the pulse enable signal so that the positive electrode of the pulse output electrode is connected to the selected negative electrode, specifically includes:

[0026] According to the number of bites coded information output by the four-bit counter, determine the negative electrode that is in conduction with the positive electrode of the pulse output electrode, wherein the number of the negative electrodes of the pulse output electrode is 12 and they are evenly arranged on a circle with the positive electrode as the center;

[0027] Upon receiving the port number coding information output by the four-bit counter, the enable control circuit determines whether the received port number coding information has changed, and when it is determined that the port number coding information has changed, outputs a high level as a pulse enable signal at a fixed pin of the enable control circuit;

[0028] Under the driving action of the number encoding information of the four-bit counter and the pulse enable signal of the enable control circuit, the electrode switching component is used to switch between multiple negative electrodes of the pulse output electrode, so that the selected negative electrode and the positive electrode determined by the four-bit counter are turned on.

[0029] As described above, the uniform heating atomization control method with alternating pulse electrodes, wherein preferably, the uniform heating atomization control method with alternating pulse electrodes further comprises:

[0030] A unidirectional diode is arranged between the enabling control circuit and the current amplifier to suppress the reverse current generated by the mutual inductance process of the positive turn coil and the negative turn coil of the transformer.

[0031] As described above, the uniform heating atomization control method with alternating pulse electrodes, wherein preferably, the uniform heating atomization control method with alternating pulse electrodes further comprises:

[0032] A current limiting resistor is provided between the enabling control circuit and the current amplifier to protect the main circuit.

[0033] The present invention provides a uniform heating atomization control method with alternating switching of pulse electrodes, which realizes uniform heating atomization of a heating device by adopting an electrode switch alternating pulse ignition mode, and can heat tobacco slices in different directions, breaking through the limitations of uneven heating of slices, inconsistent smoke release, and poor consistency of smoking taste in conventional heating methods with resistance heating rods. It has the advantages of rapid heating, uniform atomization, and high heating efficiency, and can realize rapid atomization of tobacco slices, reduce heating hysteresis, and at the same time improve the consistency of slice atomization, ensure the smoking taste, and enhance user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0035] Figure 1 A flow chart of an embodiment of a uniform heating atomization control method with alternating switching of pulse electrodes provided by the present invention;

[0036] Figure 2 A schematic diagram of an embodiment of a uniform heating atomization control method with alternating switching of pulse electrodes provided by the present invention;

[0037] Figure 3 A schematic diagram of the structure of an embodiment of the uniform heating atomization control method with alternate switching of pulse electrodes provided by the present invention;

[0038] Figure 4 A schematic diagram of the relative position relationship between the positive electrode and the negative electrode of an embodiment of a pulse output electrode of a uniform heating atomization control method with alternately switched pulse electrodes provided by the present invention.

[0039] Description of reference numerals:

[0040] 1- Four-bit counter 2- Enable control circuit 3- Current amplifier

[0041] 4- Transformer 5- Electrode switching component 6- Pulse output electrode

[0042] 7- Current limiting resistor 8- One-way diode 9- Filter insert assembly

[0043] 10-heating control housing 11-air flow pressure sensor 12-filter shaping circuit

[0044] 13-heating control circuit board 14-heating drive power supply 61-positive electrode

[0045] 62-Negative electrode DETAILED DESCRIPTION

[0046] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0047] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0049] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0050] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0051] The pulse ignition method uses the pulse principle to generate continuous instantaneous electric sparks to heat / ignite the object, and has the characteristics of simple structure, high stability, good directionality, etc. The present invention uses the pulse principle to generate instantaneous electric sparks to heat and atomize the thin sheet, and controls the rotation of multiple electrodes through the electrode switching component to achieve the rotation heating of the electrodes, so that the uniform atomization of the tobacco thin sheet can be achieved.

[0052] like Figure 1As shown, the embodiment of the present invention provides a uniform heating atomization control method with alternating switching of pulse electrodes. The method is implemented based on a uniform heating atomization control system with alternating switching of pulse electrodes. Figure 2 and Figure 3 As shown, the uniform heating atomization control system with alternating switching of pulse electrodes includes a counter 1, an enable control circuit 2, a current amplifier 3, a transformer 4, an electrode switching component 5 and a pulse output electrode 6, wherein the counter 1 is connected to the enable control circuit 2 and the electrode switching component 5 respectively, the enable control circuit 2 is connected to the current amplifier 3 and the electrode switching component 5 respectively, the current amplifier 3 is connected to the transformer 4, the pulse output electrode is connected to the transformer 4 and the electrode switching component 5 respectively, and the pulse output electrode 6 includes a positive electrode 61 and a plurality of negative electrodes 62.

[0053] like Figure 1 As shown, the uniform heating atomization control method with alternating pulse electrodes provided in this embodiment specifically includes the following steps during actual implementation:

[0054] Step S1, during the process of smoking the heat-not-burn device, counting the number of puffs to obtain puff number information.

[0055] Among them, the four-bit counter 1 can be used to calculate and encode the puff signal pulses during the puff process, and output four-bit parallel binary coded information as the puff number coded information. In a specific implementation, the four-bit counter 1 calculates and encodes the puff signal pulses (such as high level, rising edge, etc.) during each puff process, and outputs four-bit parallel binary coded information as the puff number coded information. Each time a puff signal is received, the counter 1 adds 1, and the four-bit parallel binary coded information, and then it can be determined which negative electrode to switch to according to the four-bit parallel binary coded information, that is, it can be determined which negative electrode to connect the positive electrode to.

[0056] In one embodiment of the pulse electrode alternately switching uniform heating atomization control method of the present invention, the step S1 may specifically include:

[0057] Step S11 , setting the maximum count value of the four-bit counter 1 to be equal to the number of negative electrodes of the pulse output electrodes 6 .

[0058] In the present invention, the counting range of the four-bit counter 1 is set to 12, and after the count is 12, the counter is cleared and counted again.

[0059] Step S12: In each counting cycle, the four-bit counter 1 calculates and encodes the puff signal pulses during the puffing process, and outputs four-bit parallel binary encoding information corresponding to each negative electrode of the pulse output electrode 6, so as to ensure that in each counting cycle, each negative electrode of the pulse output electrode 6 is switched once.

[0060] Each time the heating is performed, electrodes in different directions are used to heat the sheet. After a heating cycle, every direction of the sheet is heated, and the smoke and effect produced each time the heating is performed are consistent.

[0061] Furthermore, in one embodiment of the pulse electrode alternately switching uniform heating atomization control method of the present invention, the step S1 may also include:

[0062] Step S13: Utilize the airflow pressure sensor 11 connected to the filter inserting assembly 9 to detect the smoking action of the cigarette filter inserted into the filter inserting assembly 9 to generate a smoking signal.

[0063] In operation, after the user inserts the cigarette filter into the filter inserting assembly 9 and smokes the cigarette filter, the user's smoking action is detected and judged by the level output change of the airflow pressure sensor 11. When it is judged that the user has a smoking action, that is, a pulse puff signal is generated, the four-bit counter 1 counts the puff signal and outputs the puff number coding information. It should be noted that the present invention does not specifically limit the model of the airflow pressure sensor 11.

[0064] Specifically, Figure 3 As shown, the uniform heating atomization control system with alternating pulse electrodes also includes a heating control housing 10 connected to a filter insertion assembly 9, wherein the filter insertion assembly 9 is used to insert a cigarette filter, and the pulse output electrode 6 is arranged at the top of the heating control housing 10. During operation, the cigarette filter is inserted into the positive electrode 61 from top to bottom, that is, the position of the cigarette coincides with the position of the positive electrode 61 during the heating process, and the smoke generated during the heating atomization process is inhaled by the user through the filter insertion assembly 9. Specifically, the lower end of the pulse output electrode 6 contacts the top of the filter insertion assembly 9, and the length of the positive electrode 61 and the negative electrode of the pulse output electrode 6 are equal, about 9mm-11mm, for example, 10mm. It should be noted that the present invention does not specifically limit the specific distribution position and size of the pulse output electrode 6.

[0065] Further, the counter 1, the enabling control circuit 2, the current amplifier 3, the transformer 4 and the electrode switching component 5 are arranged in the heating control housing 10. Exemplarily, the housing 1 is in the shape of a cuboid. Figure 3As shown, the counter 1, the enable control circuit 2, and the current amplifier 3 can be integrated in the heating control circuit board 13; in other embodiments of the present invention, the functions of the counter 1, the enable control circuit 2, and the current amplifier 3 can be implemented by a single-chip microcomputer.

[0066] Step S14: using the filter shaping circuit 12 disposed between the airflow pressure sensor 11 and the four-bit counter 1, the suction signal generated by the airflow pressure sensor 12 is smoothed.

[0067] The filter shaping circuit 12 is used to smooth the suction signal, so that the burrs in the pulse suction signal generated by the airflow pressure sensor 11 can be regularized to avoid false triggering of the four-bit counter 1. In a specific implementation, the filter shaping circuit 12 can also be integrated in the heating control circuit board 13 or the single-chip microcomputer. It should be noted that the present invention does not specifically limit the circuit structure of the filter shaping circuit 12.

[0068] Step S2: Generate a pulse enable signal according to the port number information.

[0069] Specifically, the enable control circuit 2 may be used to output a pulse enable signal according to the port number information.

[0070] The enabling control circuit 2 receives the number of mouths coded information generated by the four-bit counter 1, determines whether the received number of mouths coded information has changed, and when it is determined that the number of mouths coded information has changed, outputs a high level as a pulse enabling signal at a fixed pin of the enabling control circuit 2, driving the negative and positive electrodes of the selection determined by the four-bit counter 1 to conduct. It should be noted that the present invention does not specifically limit the circuit structure of the enabling control circuit 2.

[0071] Step S3: generating a high voltage electrical signal according to the pulse enable signal.

[0072] In one embodiment of the pulse electrode alternately switching uniform heating atomization control method of the present invention, the step S3 may specifically include:

[0073] Step S31 , using the current amplifier 3 to amplify the pulse enable signal.

[0074] The current amplifier 3 is a transistor with a forward-biased emitter junction and a reverse-biased collector, which amplifies the pulse enable signal generated by the enable control circuit 2 by a preset multiple (for example, 100 times) and outputs it to the transformer 4. It should be noted that the present invention does not specifically limit the model of the current amplifier 3.

[0075] Step S32: using the transformer 4 to induce a high voltage electrical signal according to the amplified pulse enable signal.

[0076] In a specific implementation, the pulse enable signal generated by the enable control circuit 2 can be amplified by the current amplifier 3 and flow into the negative turn coil of the transformer 4, and a high-voltage electrical signal can be induced in the positive turn coil of the transformer 4 through mutual inductance.

[0077] The negative turn coil (ie, input winding) of the transformer 4 receives the pulse enable signal amplified by the current amplifier 3 , and induces a high voltage electrical signal in the positive turn coil (output winding) of the transformer 4 through mutual inductance.

[0078] Step S4, switching between multiple negative electrodes 62 of the pulse output electrode 6 according to the number of mouths information and the pulse enable signal, so that the positive electrode 61 of the pulse output electrode 6 is connected to the selected negative electrode 62, and the high-voltage electrical signal generates a high-voltage arc in the air between the positive electrode 61 of the pulse output electrode 6 and the selected negative electrode 62, thereby realizing pulse atomization.

[0079] Furthermore, in a specific implementation, if Figure 3 As shown, a rod with a gear groove and a steering gear with a gear are provided below the pulse output electrode 6. During one suction process, the steering gear drives the rod to reciprocate up and down to realize the up and down reciprocating movement of the positive electrode 61. Therefore, during one suction, with the driving of the steering gear, the arc direction between the positive electrode 61 and the negative electrode 62 alternates between from top to bottom and from bottom to top, so that uniform atomization can be achieved during the suction process. Each time the electrode is switched, the up and down reciprocating movement process of the positive electrode 61 is repeated, and, as shown in FIG. Figure 4 As shown, the number of the negative electrodes 62 is 12, and they are evenly arranged on the circumference of a circle with the positive electrode 61 as the center in the top view. In this way, the tobacco sheet can be heated in different radial directions.

[0080] In one embodiment of the uniform heating atomization control method of alternately switching pulse electrodes of the present invention, the switching between the plurality of negative electrodes 62 of the pulse output electrode 6 according to the puff number information and the pulse enable signal so that the positive electrode of the pulse output electrode 6 is connected to the selected negative electrode 62 may specifically include:

[0081] Step S41, according to the number of mouth coding information output by the four-bit counter 1, determine the negative electrode 62 that is connected to the positive electrode 61 of the pulse output electrode 6, wherein the number of the negative electrodes 62 of the pulse output electrode 6 is 12 and they are evenly arranged on the circumference with the positive electrode 61 as the center.

[0082] Step S42, after receiving the port number coding information output by the four-bit counter 1, the enable control circuit 2 determines whether the received port number coding information has changed, and when it is determined that the port number coding information has changed, a high level is output at the fixed pin of the enable control circuit 2 as a pulse enable signal.

[0083] Step S43, under the driving action of the number coding information of the four-bit counter 1 and the pulse enable signal of the enable control circuit 2, the electrode switching component 5 is used to switch between the multiple negative electrodes 62 of the pulse output electrode 6, so that the selected negative electrode 62 determined by the four-bit counter 1 is connected to the positive electrode 61.

[0084] Furthermore, the electrode switching component 5 drives the negative electrode port of the switching output pulse output electrode 6 according to the port number coding information of the four-bit counter 1, and the electrode switching component 5 is connected to the positive turn coil of the transformer 4 to form a current loop, so that the high-voltage electrical signal is output along the switching direction of the electrode switching component 5 at the positive pole 61 of the pulse output electrode 6, generating a high-voltage arc and realizing pulse atomization.

[0085] It should be noted that the present invention does not specifically limit the implementation of the electrode switching component 5, as long as the electrode switching function can be realized. In some embodiments of the present invention, the electrode switching component 5 includes a multi-way rotary switch with multiple output pins, and each output pin of the multi-way rotary switch is respectively connected to the output pin of each negative electrode of the pulse output electrode to control the on and off of the corresponding negative electrode. In other embodiments of the present invention, the electrode switching component 5 includes a relay.

[0086] Furthermore, the uniform heating atomization control method of alternating pulse electrodes also includes:

[0087] Step S5: a unidirectional diode 8 is provided between the enabling control circuit 2 and the current amplifier 3 to suppress the reverse current generated by the mutual inductance process of the positive turn coil and the negative turn coil of the transformer 4.

[0088] It should be noted that the present invention does not specifically limit the type of the unidirectional diode 8 .

[0089] Furthermore, the uniform heating atomization control method of alternating pulse electrodes also includes:

[0090] Step S6: a current limiting resistor 7 is provided between the enabling control circuit 2 and the current amplifier 3 to protect the main circuit.

[0091] It should be noted that the present invention does not specifically limit the type of the current limiting resistor 7 .

[0092] Furthermore, the uniform heating atomization control method of alternating pulse electrodes also includes:

[0093] Step S7: using the heating driving power supply 14 to drive the enabling control circuit 2, the current amplifier 3 and the transformer 4 to operate.

[0094] like Figure 3 As shown, the heating driving power supply 14 is arranged in the heating control housing 10 and is located at the bottom of the heating control housing 10. When the number of coded information output by the four-digit counter 1 changes, the heating driving power supply 14 is turned on, and the heating components such as the enabling control circuit 2, the current amplifier 3, and the transformer 4 start to work. It should be noted that the present invention does not specifically limit the type and model of the heating driving power supply 14.

[0095] The uniform heating atomization control method with alternating switching of pulse electrodes provided in the embodiment of the present invention adopts the electrode switch rotating pulse ignition method to realize the uniform heating atomization of the heating device, and can heat the tobacco slices in different directions, breaking through the limitations of the conventional resistance heating rod heating method such as uneven heating of the slices, inconsistent smoke release, and poor consistency of the smoking taste. It has the advantages of rapid heating, uniform atomization, and high heating efficiency, and can realize the rapid atomization of the tobacco slices and reduce the hysteresis of the heating. At the same time, it can improve the consistency of the slice atomization, ensure the smoking taste, and enhance the user experience.

[0096] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0097] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A uniform heating atomization control method with alternating switching of pulse electrodes, characterized in that: The steps include: Step S1, during the process of smoking the heat-not-burn device, counting the number of puffs to obtain puff number information, specifically including: A four-bit counter is used to calculate and encode the puff signal pulses during the puffing process, and four-bit parallel binary coded information is output as the puff number coded information; Step S2, generating a pulse enable signal according to the port number information, specifically comprising: Using an enable control circuit to output a pulse enable signal according to the port number information; Step S3, generating a high voltage electrical signal according to the pulse enable signal; Step S4, switching between multiple negative electrodes of the pulse output electrode according to the number of holes information and the pulse enable signal, so that the positive electrode of the pulse output electrode is connected to the gated negative electrode, and the high-voltage electrical signal generates a high-voltage arc in the air between the positive electrode of the pulse output electrode and the gated negative electrode, so as to realize pulse atomization; Step S41, determining the negative electrode that is in conduction with the positive electrode of the pulse output electrode according to the pulse number coding information output by the four-bit counter, wherein the number of the negative electrodes of the pulse output electrode is 12 and they are evenly arranged on a circle with the positive electrode as the center; Step S42, upon receiving the port number coding information output by the four-bit counter, the enable control circuit determines whether the received port number coding information has changed, and when determining that the port number coding information has changed, outputs a high level as a pulse enable signal at a fixed pin of the enable control circuit; Step S43, under the driving action of the number coding information of the four-bit counter and the pulse enable signal of the enable control circuit, use the electrode switching component to switch between the multiple negative electrodes of the pulse output electrode, so that the selected negative electrode and the positive electrode determined by the four-bit counter are turned on.

2. The uniform heating atomization control method of pulse electrode alternating switching according to claim 1 is characterized in that: The method of calculating and encoding the puff signal pulses during the puffing process by using a four-bit counter and outputting four-bit parallel binary coded information as the puff count coded information specifically includes: Setting the maximum count value of the four-bit counter to be equal to the number of negative electrodes of the pulse output electrodes; In each counting cycle, the four-bit counter calculates and encodes the puff signal pulses during the puffing process, and outputs four-bit parallel binary encoding information corresponding to each negative electrode of the pulse output electrode, so as to ensure that each negative electrode of the pulse output electrode is switched once in each counting cycle.

3. The uniform heating atomization control method of pulse electrode alternating switching according to claim 2 is characterized in that: The method of calculating and encoding the puff signal pulses during the puffing process by using a four-bit counter and outputting four-bit parallel binary coded information as the puff number coded information also includes: Using an airflow pressure sensor connected to the filter insertion assembly, the inhalation action of the cigarette filter inserted into the filter insertion assembly is detected to generate a suction signal; The suction signal generated by the airflow pressure sensor is smoothed by a filter shaping circuit arranged between the airflow pressure sensor and the four-bit counter.

4. The uniform heating atomization control method with alternating pulse electrodes according to claim 1, characterized in that: Generating a high voltage electrical signal according to the pulse enable signal specifically includes: Amplifying the pulse enable signal using a current amplifier; A transformer is used to induce a high voltage electrical signal according to the amplified pulse enable signal.

5. The uniform heating atomization control method of pulse electrode alternating switching according to claim 4 is characterized in that: The step of using a transformer to induce a high voltage electrical signal according to the amplified pulse enable signal specifically includes: The pulse enable signal generated by the enable control circuit is amplified by the current amplifier and flows into the negative turn coil of the transformer, and a high-voltage electrical signal is induced in the positive turn coil of the transformer through mutual inductance.

6. The uniform heating atomization control method of alternately switching pulse electrodes according to claim 4 is characterized in that: The uniform heating atomization control method of alternately switching pulse electrodes also includes: A unidirectional diode is arranged between the enabling control circuit and the current amplifier to suppress the reverse current generated by the mutual inductance process of the positive turn coil and the negative turn coil of the transformer.

7. The uniform heating atomization control method of pulse electrode alternating switching according to claim 4, characterized in that: The uniform heating atomization control method of alternately switching pulse electrodes also includes: A current limiting resistor is provided between the enabling control circuit and the current amplifier to protect the main circuit.

Citation Information

Patent Citations

  • Uniform heating atomization control system capable of alternately switching pulse electrodes

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