Atomization equipment, control method of atomization equipment and computer readable storage medium

Abstract

The invention provides atomization equipment and a control method thereof. The atomization equipment comprises a direct-current power supply and a heating piece with a first heating part and a second heating part, the first heating part and the second heating part share a first pin, and the second pin comprises a first sub-pin electrically connected with the first heating part and a second sub-pin electrically connected with the second heating part. The heating element is electrically connected with the direct-current power supply through the multi-pin switching circuit, and the multi-pin switching circuit can selectively or periodically control the current direction in the heating element to be switched under the control of external input. By controlling and switching the current direction of the heating element, the first pin, the first sub-pin and the second sub-pin of the heating element can be selectively or periodically connected with the positive electrode of the direct-current power supply under control, the electrochemical corrosion phenomenon of single-side carbon deposition of the heating element is effectively reduced, the influence of the heat conduction rate of the heating element to the atomization substrate is reduced, and the atomization effect is improved. The atomization matrix can be more fully atomized, and the smoking taste retention degree is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization equipment, in particular to an atomization equipment and a control method thereof and a computer readable storage medium. BACKGROUND

[0002] The current atomization equipment is composed of an atomization part, a battery part and a mouthpiece. The battery part provides a direct current power source. By heating a heating element in the atomization part, the atomization core in the atomization part reaches a certain temperature. Under the premise of not burning, the atomization substrate in the atomization core is baked so that it can emit a flavor similar to that of a real cigarette. Therefore, the atomization equipment has the flavor of a real cigarette. Since there is no open flame, the production of harmful substances can be reduced by 90%, and the amount of tar is low, which is favored by people.

[0003] Common heating elements usually use spring heating elements, ceramic cores or MESH cores. Carbon deposits are easily formed on the surface of the heating element, which affects the rate of heat conduction from the heating element to the atomization substrate, resulting in insufficient atomization of the atomization substrate and a great impact on the smoking taste. Further analysis shows that the carbon deposits are more serious at the pins in the direction of current flow, and the discoloration is more serious at the pins.

[0004] To solve the problem of one-sided carbon deposition, the existing technology has the following common technical means: the first is to replace the heating structure in the new atomization part regularly, but it is only suitable for replacing the spring cigarette and cannot be universally applied; the second is to install two or more heating structures in the atomization part, which has high requirements for space and increases the difficulty of production and assembly; the third is to change the atomization equipment to multi-heating, which increases the difficulty of winding cotton of the heating element and reduces the yield of the heating element.

[0005] In a multi-heating atomization equipment, such as a double-heating atomization equipment, there is a first heating part and a second heating part, and both have a common pin. When the common pin is the current inflow end, whether the first heating part or the second heating part is activated or both are activated, the common pin still has the electrochemical corrosion phenomenon of carbon deposition on the heating element as the current inflow pin. When the common pin is the current outflow end, the non-common pins of the two heating parts act as the current inflow pins. After a long time of heating, the electrochemical corrosion phenomenon of carbon deposition also occurs. SUMMARY

[0006] The present application proposes an atomization equipment and a heating atomization control method, which can solve the technical problem of the electrochemical corrosion phenomenon of one-sided or variable carbon deposition of the heating element in the existing atomization equipment, which affects the rate of heat conduction from the heating element to the atomization substrate, resulting in insufficient atomization of the atomization substrate and affecting the smoking taste.

[0007] In a first aspect, the embodiments of the present application provide an atomization device, which comprises a direct current power supply and a heating element, a first pin and a second pin of the heating element being electrically connected through a multi-pin switching circuit and the direct current power supply; the heating element has a first heating part and a second heating part, the first heating part and the second heating part share the first pin, and the second pin comprises a first sub-pin electrically connected to the first heating part and a second sub-pin electrically connected to the second heating part.

[0008] The multi-pin switching circuit selectively or periodically controls the current direction of the direct current power supply to switch from the first pin flowing to the first sub-pin and / or the second sub-pin to the first sub-pin and / or the second sub-pin flowing to the first pin.

[0009] Or, from the first sub-pin and / or the second sub-pin flowing to the first pin to the first pin flowing to the first sub-pin and / or the second sub-pin.

[0010] In some embodiments, the multi-pin switching circuit comprises a control module, a first pin connection end, a second pin connection end and a third pin connection end.

[0011] The control module of the multi-pin switching circuit is used to obtain a pin switching signal, the first pin connection end of the multi-pin switching circuit is connected with the first pin, the second pin connection end of the multi-pin switching circuit is connected with the first sub-pin, and the third pin connection end of the multi-pin switching circuit is connected with the second sub-pin.

[0012] The multi-pin switching circuit is used to selectively or periodically control the first pin or the first sub-pin and / or the second pin to be connected with the positive pole of the direct current power supply according to the pin switching signal.

[0013] In some embodiments, the multi-pin switching circuit comprises a switching circuit; the switching circuit is used to control the direct current power supply to be turned on as one or more paths or to control the current direction of the direct current power supply to be changed among the first pin, the first sub-pin and the second sub-pin according to the switching information represented by the pin switching signal through logical control.

[0014] In some embodiments, the multi-pin switching circuit comprises an inverter circuit; the inverter circuit is used to convert the direct current output by the direct current power supply into a sinusoidal current, and the current direction is switched according to the waveform of the sinusoidal current.

[0015] In some embodiments, the current direction switching circuit comprises an inverter circuit; the inverter circuit is used to convert the direct current output by the direct current power supply into a square wave current, and the square wave current has a forward high level, a forward low level, a reverse high level and a reverse low level.

[0016] When the inverter circuit outputs current in a forward high level and a forward low level, the current direction is from the first pin to the first sub-pin and / or the second sub-pin; when the inverter circuit outputs current in a reverse high level and a reverse low level, the current direction is from the first sub-pin and / or the second sub-pin to the first pin.

[0017] Alternatively, when the inverter circuit outputs current in a forward high level and a forward low level, the current direction is from the first sub-pin and / or the second sub-pin to the first pin; when the inverter circuit outputs current in a reverse high level and a reverse low level, the current direction is from the first pin to the first sub-pin and / or the second sub-pin.

[0018] According to an embodiment of the present application, the heat-generating component further comprises a third heat-generating part and a third sub-pin; one conductive side of the third heat-generating part is electrically connected to the first pin, and the other conductive side is electrically connected to the third sub-pin; and the third sub-pin is electrically connected to the multi-pin switching circuit.

[0019] According to an embodiment of the present application, the multi-pin switching circuit selectively or periodically switches among a plurality of heat-generating modes; the resistance values of the first heat-generating part and the second heat-generating part are respectively less than the resistance value of the third heat-generating part; and the heat-generating modes include: the third heat-generating part works independently, one of the first heat-generating part or the second heat-generating part works independently, the first heat-generating part and the second heat-generating part work simultaneously, and the first heat-generating part, the second heat-generating part and the third heat-generating part work simultaneously. According to an embodiment of the present application, the resistance value of the first heat-generating part is 0.5-0.9Ω, the resistance value of the second heat-generating part is 0.5-0.9Ω, and the resistance value of the third heat-generating part is 0.8-1.3Ω.

[0020] In the second aspect, the embodiments of the present application provide a control method of an atomization device, the atomization device comprising a direct current power supply and two heat-generating components; the first pin and the second pin of the heat-generating component are electrically connected to the direct current power supply through a multi-pin switching circuit; the heat-generating component has a first heat-generating part and a second heat-generating part; the first heat-generating part and the second heat-generating part share the first pin; and the second pin comprises a first sub-pin electrically connected to the first heat-generating part and a second sub-pin electrically connected to the second heat-generating part.

[0021] The control method comprises:

[0022] In response to an external input instruction, a pin switching signal is generated;

[0023] According to the pin switching signal, the multi-pin switching circuit is selectively or periodically controlled to realize the switching of the current direction of the heat-generating component;

[0024] The current direction comprises the current direction from the first pin to the first sub-pin and / or the second sub-pin, and the current direction from the first sub-pin and / or the second sub-pin to the first pin.

[0025] In some embodiments, in response to an external input instruction, the method comprises:

[0026] obtaining a preset current direction switching frequency;

[0027] generating an external input instruction according to the preset current direction switching frequency.

[0028] In some embodiments, when the impedance of the first heating part and the second heating part is the same, obtaining the preset current direction switching frequency comprises:

[0029] obtaining the heat quantity of the first heating part and / or the second heating part in a unit time;

[0030] generating the frequency of the current direction switching according to the heat quantity of the first heating part and / or the second heating part in a unit time.

[0031] In some embodiments, when the impedance of the first heating part and the second heating part is different, obtaining the preset current direction switching frequency comprises:

[0032] obtaining the heat quantity of the first heating part and the second heating part in a unit time respectively;

[0033] comparing the heat quantity of the first heating part and the second heating part in a unit time to determine the heat quantity threshold of the first heating part and the second heating part;

[0034] determining the working period of the first heating part and the second heating part respectively according to the heat quantity threshold to generate the frequency of the current direction switching.

[0035] In some embodiments, in response to an external input instruction, the method comprises:

[0036] detecting whether the user has a puffing action, and obtaining a puffing parameter according to the detection result;

[0037] The puffing parameter is the current puffing number or the current cumulative puffing time.

[0038] generating the external input instruction according to the puffing parameter.

[0039] In a third aspect, the embodiments of the present application provide a computer readable medium, and the computer readable storage medium stores a computer execution program or instruction. When the program or instruction is executed by a processor, the program or instruction is used to implement the steps of the control method of the atomization device according to any embodiment of the second aspect.

[0040] The atomization device and the control method thereof provided by the embodiment of the present application, the atomization device comprises a direct current power supply and a heating element comprising a first heating part and a second heating part, the heating element has a first pin and a second pin, and the first heating part and the second heating part share the first pin, the second pin comprises a first sub-pin electrically connected to the first heating part and a second sub-pin electrically connected to the second heating part; wherein the first pin, the first sub-pin and the second sub-pin are electrically connected through a multi-pin switching circuit and the direct current power supply, and the multi-pin switching circuit can selectively or periodically control the current direction in the heating element to switch under the control of external input.

[0041] The present application can effectively reduce the electrochemical corrosion phenomenon of the single-side carbon deposition of the heating element by controlling the current direction of the switching heating element, can reduce the influence of the heat conduction rate of the heating element to the atomization substrate, can make the atomization substrate more fully atomized, and can effectively improve the smoking taste retention. At the same time, the single-side carbon deposition speed is also delayed, and the carbon deposition rate of the heating element can be delayed by at least 2 times or more through actual measurement, and the service life of the atomization device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate the embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0043] Figure 1 The structural schematic diagram of the atomization device provided by an embodiment of the present application is shown in the figure;

[0044] Figure 2 The structural schematic diagram of the heating element in the double-atomization device provided by an embodiment is shown in the figure;

[0045] Figure 3 The flowchart of the control method of the atomization device provided by an embodiment of the present application is shown in the figure;

[0046] Figure 4 The flowchart of obtaining the preset current direction switching frequency provided by an embodiment of the present application is shown in the figure;

[0047] Figure 5 The flowchart of obtaining the preset current direction switching frequency provided by another embodiment of the present application is shown in the figure;

[0048] Figure 6 The flowchart of generating the pin switching signal provided by an embodiment of the present application is shown in the figure;

[0049] Figure 7 The structural schematic diagram of the heating element in the atomization device provided by an embodiment of the present application is shown in the figure;

[0050] Figure 8 Fig. 1 is a schematic diagram of an atomizing device according to an embodiment of the present application.

[0051] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and detailed description are not intended to limit the scope of the present application in any way, but to explain the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] The present application will be described in further detail by the specific embodiments in conjunction with the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following embodiments, many details are described in order to provide a more thorough description of the present application. However, it will be readily apparent to those skilled in the art that some features in different embodiments can be omitted, or replaced by other elements, materials, methods, etc. In some cases, some operations related to the present application are not shown or described in the specification in order to avoid the core of the present application being overwhelmed by too many descriptions, and it is not necessary for those skilled in the art to describe these related operations in detail according to the description in the specification and general technical knowledge in the art.

[0053] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. Meanwhile, the steps or actions in the method description can also be sequentially adjusted or adjusted in a manner that is apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.

[0054] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or chronological order. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the objects before and after are in an "or" relationship. The present application means "connection" and "coupling", unless otherwise specified, including direct and indirect connection (coupling).

[0055] As described in the background, the current atomization smoke is mainly heated by one-way current heating heating element (spring heating element, grid heating element or planar heating pattern, etc.) to heat the atomization substrate, so as to realize the atomization of the atomization substrate, and finally achieve the purpose of smoking. However, carbon deposition is easy to form on the surface of the heating element, which will affect the heat conduction rate of the heating element to the atomization substrate, resulting in insufficient atomization of the atomization substrate, which will greatly affect the smoking taste. After disassembling and analyzing the electronic cigarette, it is found that the heating element is always single-sided and the color change is more serious at the lead end.

[0056] Through simulation analysis, it is found that the electric power density at the pin end of the current inflow end is higher than that at the pin end of the current outflow end; secondly, the lead wire welding line, the material of the welding point is mainly iron-chromium-aluminum, and the material of the lead wire is mainly nickel, and the two different materials are easy to form "corrosion primary cell" effect in the atomization substrate, causing electrochemical corrosion. With the increase of the number of times, the corrosion phenomenon may become more and more serious, resulting in the size of the welding point position becoming smaller and smaller, the resistance becoming larger and larger, and the power sharing also becoming larger and larger, and the heating will become more and more serious.

[0057] To solve the above technical problems, the related technology can be summarized as replacing the core, setting multiple cores or multiple heating settings. For the replacement of the core or the multiple core setting method, it is limited by the heating structure, and is not universal, and undoubtedly increases the production difficulty. For the multiple heating setting method, whether it is single heating activation or single heating activation, after a long time of heating, the pin end as the current inflow end will still have carbon deposition and other electrochemical corrosion phenomena.

[0058] Therefore, the present application proposes a kind of atomization equipment for multiple heating settings, under the premise of not changing the main structure of existing heating element, by switching the current direction of heating element, i.e. by making different pins of heating element selectively or periodically as current inflow end to achieve the effect of delaying electrochemical corrosion, to realize the delay of single-sided carbon deposition speed of heating element, delay the time of taste affected by carbon deposition, improve the taste retention time of atomization equipment, and improve its service life.

[0059] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some examples. The embodiments of the present application will be described below with reference to the drawings.

[0060] Figure 1 The structure schematic diagram of the atomization equipment provided by an embodiment of the present application is shown in the figure. Figure 1As shown, the atomization device 100 provided by the embodiment of the present application comprises an atomization part 101, a direct current power supply 102 and a cigarette holder 103, wherein the atomization part 101 is in communication with the cigarette holder 103; the atomization part 101 comprises a heating element and an atomization core containing an atomization substrate; the direct current power supply 102 is used to provide direct current power for the heating element, so that the heating element heats the atomization substrate to form smoke which escapes from the cigarette holder 103. The heating element has a first pin and a second pin, and the first pin and the second pin are connected with the positive and negative poles of the direct current power supply 102. The heating element comprises at least two heating parts, and the plurality of heating parts share the first pin. The second pin comprises sub-pins corresponding to different heating parts, each sub-pin is in conductive connection with the corresponding heating part, and each sub-pin can be simultaneously connected with the positive pole (or the negative pole) of the direct current power supply 102 or selectively connected with the positive pole (or the negative pole) of the direct current power supply 102.

[0061] The atomization device of the embodiment of the present application further comprises a multi-pin switching circuit 104. In the embodiment, the multi-pin switching circuit 104 comprises a control module and a plurality of pin connection ends, wherein the plurality of pin connection ends of the multi-pin switching circuit 104 are connected with the sub-pins corresponding to different heating parts in the first pin and the second pin of the heating part, and the control module of the multi-pin switching circuit 104 is used to acquire an externally input pin switching signal and selectively or periodically control the switching of the current direction of the direct current power supply 102, that is, control the switching of the current direction between the first pin and the sub-pins corresponding to different heating parts in the second pin connected with the direct current power supply 102.

[0062] In some embodiments, the control module can be a control circuit integrated on a PCBA, or an MCU or an ASIC chip. The control module is used to acquire an externally input pin switching signal, wherein the pin switching signal can be a computer instruction output by an atomization device controller, or a pin switching signal represented based on a collected signal (such as a puffing time, a temperature change value or a heating amount change value).

[0063] Specifically, when the first pin is connected with the positive pole of the direct current power supply 102, at this time, the sub-pins corresponding to different heating parts in the second pin are connected with the negative pole of the direct current power supply 102. According to the received pin switching signal, the multi-pin switching circuit 104 can selectively or periodically control the current direction of the direct current power supply 102 to be switched from the first pin to one or more sub-pins to be switched from the one or more sub-pins to the first pin.

[0064] When the first pin is connected to the negative pole of the direct current power supply 102, and the sub-pins corresponding to different heating parts in the second pin are connected to the positive pole of the direct current power supply 102, the multi-pin switching circuit 104 can selectively or periodically control the current direction of the direct current power supply 102 from one or more sub-pins to the first pin to the first pin to one or more sub-pins according to the received pin switching signal.

[0065] In summary, the embodiments of the present application control the current direction of the heating element through the multi-pin switching circuit to enable the first pin of the heating element and the sub-pins corresponding to different heating parts to selectively or periodically connect to the positive pole of the direct current power supply under control, which can effectively reduce the electrochemical corrosion phenomenon of the single-sided carbon deposition of the heating element, reduce the influence of the heating rate of the heating element on the atomized substrate, enable the atomized substrate to be more fully atomized, and effectively improve the smoking taste retention. At the same time, it also delays the speed of single-sided carbon deposition. According to actual measurement, the carbon deposition rate of the heating element can be delayed by at least 2 times or more, and the service life of the atomization equipment is improved.

[0066] The following Figure 2 a and Figure 2 b understand "current direction" in the above embodiments, first refer to Figure 2 a, Figure 2 a, the heating element includes a first heating part 201 and a second heating part 202, wherein the first heating part 201 and the second heating part 202 share a first pin 203, the first heating part 201 is electrically connected to a first sub-pin 2041 on the opposite side of the first pin 203, and the second heating part 202 is electrically connected to a second sub-pin 2042 on the opposite side of the first pin 203.

[0067] Among them, the switching of the current direction includes at least the following three cases:

[0068] 1. In the initial state, the first heating part 201 is turned on, and the second heating part 202 is turned off; at this time, the first pin 203 is electrically connected to the positive pole of the direct current power supply 102, and the first sub-pin 2041 is electrically connected to the negative pole of the direct current power supply 102; the multi-pin switching circuit can switch the current direction to the first pin 203 electrically connected to the negative pole of the direct current power supply 102, and the first sub-pin 2041 electrically connected to the positive pole of the direct current power supply 102.

[0069] Similarly, when only the second heating part 202 is turned on, the same positive and negative polarity switching can also be performed, which is not repeated here.

[0070] 2、initial state, the first heating part 201 and the second heating part 202 are turned on at the same time, at this time, the first pin 203 is electrically connected to the positive pole of the direct current power supply 102, the first sub-pin 2041 is electrically connected to the negative pole of the direct current power supply 102, and the second sub-pin 2042 is electrically connected to the negative pole of the direct current power supply 102; that is, the common positive pole is the first pin 203. Through the multi-pin switching circuit, the current direction can be switched to: the first pin 203 is electrically connected to the negative pole of the direct current power supply 102, the first sub-pin 2041 is electrically connected to the positive pole of the direct current power supply 102, and the second sub-pin 2042 is electrically connected to the positive pole of the direct current power supply 102; that is, the first pin 203 is used as the common negative pole, and the first pin 203 is used as the common positive pole.

[0071] 3、initial state, the first heating part 201 is turned on, and the second heating part 202 is turned off, at this time, the first pin 203 is electrically connected to the positive pole of the direct current power supply 102, and the first sub-pin 2041 is electrically connected to the negative pole of the direct current power supply 102; through the multi-pin switching circuit, the current direction can be switched to: the first heating part 201 is turned off, and the second heating part 202 is turned on, at this time, the first sub-pin 2041 is connected to the positive pole or negative pole of the direct current power supply 102, which can be specified by the multi-pin switching circuit, and the first pin 203 is electrically connected to the positive pole or negative pole of the direct current power supply 102, which can also be specified by the multi-pin switching circuit.

[0072] Similarly, the initial state of the first heating part 201 is turned off, and the second heating part 202 is turned on, which is the same as the above switching mode, and will not be repeated here.

[0073] Figure 2 The structure diagram of the heating element in the double-fuel atomization device provided for an embodiment is shown in the figure. Figure 2 As shown in the figure, two common structures of the heating element in the double-fuel atomization device, Figure 2 (a) is a left-right structure, Figure 3 (b) is an up-down structure, it can be seen that in the two structures, the heating element 200 has a first heating part 201 and a second heating part 202, the first heating part 201 and the second heating part 202 share a first pin 203, and a second pin 204 includes a first sub-pin 2041 in conductive connection with the first heating part 201 and a second sub-pin 2042 in conductive connection with the second heating part 202.

[0074] When the first pin 203 is connected with the positive pole of the direct current power supply 102, the first sub-pin 2041 and the second sub-pin 2042 are connected with the negative pole of the direct current power supply 102, that is, when the first heating part 201 is activated, the current direction of the direct current power supply 102 is from the first pin 203 to the first sub-pin 2041; when the second heating part 202 is activated, the current direction of the direct current power supply 102 is from the first pin 203 to the second sub-pin 2042; when the first heating part 201 and the second heating part 202 are activated simultaneously, the current direction of the direct current power supply 102 is from the first pin 203 to the first sub-pin 2041 and the second sub-pin 2042 respectively. Therefore, no matter whether the first heating part 201 and the second heating part 202 are activated individually or simultaneously, the first pin 203 is used as the current inflow end, and after long-time heating, the first pin 203 will appear electrochemical corrosion phenomenon such as carbon deposition.

[0075] Specifically, the multi-pin switching circuit 104 includes a control module, a first pin connection end, a second pin connection end and a third pin connection end; the control module of the multi-pin switching circuit 104 is used for acquiring a pin switching signal, the first pin connection end of the multi-pin switching circuit 104 is connected with the first pin 203, the second pin connection end of the multi-pin switching circuit 104 is connected with the first sub-pin 2041, and the third pin connection end of the multi-pin switching circuit 104 is connected with the second sub-pin 2042.

[0076] At this time, according to the received pin switching signal, the multi-pin switching circuit 104 can selectively or periodically control the current direction of the direct current power supply 102 to switch from the first pin 203 to the first sub-pin 2041 and / or the second sub-pin 2042 to the first sub-pin 2041 and / or the second sub-pin 2042 to the first pin 203. That is, under the control of the multi-pin switching circuit 104, the first pin 203 and the first sub-pin 2041 and / or the second sub-pin 2042 can be selectively or periodically connected with the positive pole of the direct current power supply, so as to reduce the electrochemical corrosion phenomenon of the carbon deposition on one side of the heating element.

[0077] It should be noted that when the multi-pin switching circuit 104 controls the current direction of the direct current power supply 102 to switch from the first pin 203 to the first sub-pin 2041 to the second sub-pin 2042 to the first pin 203, it is necessary to first control the atomization device to switch from activating the first heating part 201 alone to activating the second heating part 202 alone, and then control the current direction to switch from the first pin 203 to the first sub-pin 2041 to the second sub-pin 2042 to the first pin 203. Similarly, when the current direction is controlled to switch from the first pin 203 to the second sub-pin 2042 to the first sub-pin 2041 to the first pin 203, it is also necessary to first control the atomization device to switch from activating the second heating part 202 alone to activating the first heating part 201 alone.

[0078] When the first pin 203 is connected to the negative pole of the direct current power supply 102, the first sub-pin 2041 and the second sub-pin 2042 are connected to the positive pole of the direct current power supply 102, that is, when the first heating part 201 is activated, the current direction of the direct current power supply 102 is from the first sub-pin 2041 to the first pin 203; when the second heating part 202 is activated, the current direction of the direct current power supply 102 is from the second sub-pin 2042 to the first pin 203; when the first heating part 201 and the second heating part 202 are activated at the same time, the current direction of the direct current power supply 102 is from the first sub-pin 2041 and the second sub-pin 2042 to the first pin 203 respectively. Therefore, no matter whether the first heating part 201 and the second heating part 202 are activated separately or simultaneously, the first sub-pin 2041 and the second sub-pin 2042 are used as the current inflow end, and after a long time of heating, the first sub-pin 2041 and the second sub-pin 2042 will also appear electrochemical corrosion phenomenon such as carbon deposition.

[0079] Specifically, the multi-pin switching circuit 104 includes a control module, a first pin connection end, a second pin connection end and a third pin connection end; the control module of the multi-pin switching circuit 104 is used for obtaining a pin switching signal, the first pin connection end of the multi-pin switching circuit 104 is connected with the first pin 203, the second pin connection end of the multi-pin switching circuit 104 is connected with the first sub-pin 2041, and the third pin connection end of the multi-pin switching circuit 104 is connected with the second sub-pin 2042.

[0080] At this time, the multi-pin switching circuit 104 can selectively or periodically control the current direction of the direct current power supply 102 to switch from the first sub-pin 2041 and / or the second sub-pin 2042 to the first pin 203 to the first pin 203 to the first sub-pin 2041 and / or the second sub-pin 2042 according to the received pin switching signal. That is, under the control of the multi-pin switching circuit 104, the first pin 203 and the first sub-pin 2041 and / or the second sub-pin 2042 can be selectively or periodically connected to the positive pole of the direct current power supply, so as to reduce the electrochemical corrosion phenomenon of the unidirectional carbon deposition of the heating part.

[0081] It needs to be said that when the multi-pin switching circuit 104 controls the current direction of the direct current power supply 102 to switch from the first sub-pin 2041 to the first pin 203 to the first pin 203 to the second sub-pin 2042, it first needs to control the atomization device to switch from activating the first heating part 201 alone to activating the second heating part 202 alone, and then realize the switching of the current direction between the pins. Similarly, when the current direction is switched from the second sub-pin 2042 to the first pin 203 to the first pin 203 to the first sub-pin 2041, it also needs to control the atomization device to switch from activating the second heating part 202 alone to activating the first heating part 201 alone.

[0082] Therefore, the multi-pin switching circuit 104 selectively or periodically controls the switching of the current direction of the direct current power supply 102 according to the pin switching signal, that is, controls the switching of the current direction between the first pin and the second pin connected with the direct current power supply 102, and the sub-pins corresponding to different heating parts, and when the different heating part pins are switched, whether the activated heating part needs to be switched also needs to be considered.

[0083] In summary, the atomization device provided by the embodiment of the present application includes a direct current power supply and a heating element including a first heating part and a second heating part, the heating element has a first pin and a second pin, and the first heating part and the second heating part share the first pin, and the second pin includes a first sub-pin electrically connected to the first heating part and a second sub-pin electrically connected to the second heating part; wherein the first pin, the first sub-pin and the second sub-pin are electrically connected through a multi-pin switching circuit and a direct current power supply, and the multi-pin switching circuit can selectively or periodically control the switching of the current direction in the heating element under external control.

[0084] The embodiment of the present application controls the switching of the current direction of the heating element, so that the first pin, the first sub-pin and the second sub-pin of the heating element can be selectively or periodically connected with the positive electrode of the direct current power supply under control, which can effectively reduce the electrochemical corrosion phenomenon of the single-side carbon deposition of the heating element, reduce the influence of the heat conduction rate of the heating element to the atomization substrate, make the atomization substrate more fully atomized, and effectively improve the smoking taste retention. At the same time, it also delays the speed of single-side carbon deposition, and the carbon deposition rate of the heating element can be delayed by at least 2 times or more, which improves the service life of the atomization device.

[0085] It needs to be said that the multi-pin switching circuit 104 provided by the embodiment of the present application is not limited to being used in a double-atomization device, and is also applicable to a three-atomization or multi-atomization device, and based on the same principle, the multi-pin switching circuit controls the switching of the current direction of the heating element, so that the first pin and the sub-pins corresponding to different heating parts of the heating element can be selectively or periodically connected with the positive electrode of the direct current power supply under control, so as to achieve the effect of reducing the electrochemical corrosion of the pin as the current inflow end.

[0086] In some embodiments, the multi-pin switching circuit 104 comprises a switching circuit; the switching circuit is used to control the direct current power supply to be turned on to one or more paths or to change the current direction of the direct current power supply between the first pin, the first sub-pin and the second sub-pin according to the switching information represented by the pin switching signal through logical control.

[0087] Specifically, the switching circuit switches the first heating part 201, the second heating part 202 or simultaneously turns on the first heating part 201 and the second heating part 202 according to the switching information represented by the pin switching signal, and the current direction of the direct current power supply between the first pin 203, the first sub-pin 2041 and the second sub-pin 2041, for example, the switching circuit switches from turning on the first heating part 201 to turning on the second heating part 202 according to the pin switching signal, and during the period of turning on the second heating part 202, the current direction between the first pin 203 and the second sub-pin 2041 can be further controlled by the pin switching signal through logical control, that is, the pin connected to the positive electrode of the direct current power supply 102 is the first pin 203 or the second sub-pin 2041. Therefore, the switching circuit can realize the switching of the heating part according to the pin switching signal, and also realize the switching of the pin connection.

[0088] In some embodiments, the switching circuit includes but is not limited to any one of analog switches (such as CD4066 or similar ICs), relays, multiplexers.

[0089] For using relays, the state of the contacts can be switched by controlling the coil of the relay, so that the first end is alternately connected with the second end or the third end. When the coil of the relay is activated, the contacts are closed, connecting the first end with the second end; when the coil is not activated, the contacts are open, and the first end is connected with the third end through other relays or circuit structures. A logic circuit (such as a microcontroller or a logic gate circuit) is used to switch the state of the relay according to the input signal or condition. For example, a simple microcontroller (such as Arduino) can be used to read the input signal and control the switch of the relay according to the signal.

[0090] For multiplexers, it is also a device that can connect one of multiple inputs to an output according to a selection signal. By changing the selection signal, different inputs can be connected to the output.

[0091] When designing the multi-pin switching circuit 104, the following points need to be considered at least:

[0092] 1. The source and stability of the pin switching signal to ensure accurate control of the switching state.

[0093] 2. Selection and parameters of the switching element to meet the requirements of circuit working voltage, current and frequency, etc.

[0094] 3. Reliability and safety of the circuit, avoiding overcurrent, overvoltage and other faults, and ensuring normal operation of the circuit.

[0095] In some embodiments, a rotary switch or a manual switch can also be used to electrically connect with the multi-pin switching circuit 104, such as a rotary switch or a double-throw switch, to manually control the connection of one of the multiple inputs to the output. The disadvantage of this method is that it cannot automatically switch and needs manual operation.

[0096] In some embodiments, the multi-pin switching circuit 104 can also include an inverter circuit, which converts the direct current output by the direct current power supply into alternating current, so as to switch the current direction between the first pin 203 and the second pin 204 of the heating element with the alternating current.

[0097] In some embodiments, when the multi-pin switching circuit 104 includes an inverter circuit, the inverter circuit can convert the direct current output by the direct current power supply 102 into a sinusoidal current, and the current direction between the first pin 203 and the second pin 204 of the heating element is switched with the waveform direction of the sinusoidal current. For example, the inverter circuit can use a sinusoidal inverter based on EG2113D.

[0098] In some embodiments, when the multi-pin switching circuit 104 includes an inverter circuit, the inverter circuit can also convert the direct current output by the direct current power supply 102 into a square wave current, which has a positive high level, a positive low level, a reverse high level and a reverse low level. When the inverter circuit outputs current at the positive high level and the positive low level, the current direction between the first pin 203 and the second pin 204 of the heating element is from the first pin 203 to the second pin 204, for example, in the case of a double-firing atomization device, it is from the first pin 203 to the first sub-pin 2041 and / or the second sub-pin 2042; when the inverter circuit outputs current at the reverse high level and the reverse low level, the current direction between the two pins of the heating element is from the second pin 204 to the first pin 201, for example, in the case of a double-firing atomization device, it is from the first sub-pin 2041 and / or the second sub-pin 2042 to the first pin 203. For example, the inverter circuit can use a square wave output voltage type inverter composed of an inverter chip based on the TGPS series, IR2110 produced by the International Rectifier Company in the United States, or TL494, EG8010 produced by EGmicro and other filter circuits, control circuits and auxiliary side circuits.

[0099] Figure 3 The flow chart of the control method of the atomization device provided in an embodiment of the present application is shown in FIG. 1. As shown in FIG. 1, the control method includes the following steps: Figure 4As shown, the atomization device provided by the embodiments of the present application includes a direct current power supply and at least two heating elements, the heating elements have a first pin and a second pin, the first pin and the second pin are connected to the positive and negative poles of the direct current power supply through the multi-pin switching circuit of any of the above embodiments, a plurality of heating parts share the first pin, the second pin includes sub-pins corresponding to different heating parts, each sub-pin is in conductive connection with the corresponding heating part, and each sub-pin can be simultaneously connected to the positive pole (or the negative pole) of the direct current power supply or selectively connected to the positive pole (or the negative pole) of the direct current power supply.

[0100] The control method of the atomization device provided by the embodiments of the present application specifically includes the following steps:

[0101] Step S301, in response to an external input command, a pin switching signal is generated;

[0102] Step S302, according to the pin switching signal, the multi-pin switching circuit is selectively or periodically controlled to realize the switching of the current direction of the heating element;

[0103] The current direction includes the current flowing from the first pin to one or more sub-pins, and the current flowing from the one or more sub-pins to the first pin.

[0104] Taking a double-atomization device as an example, the current direction includes the current flowing from the first pin 203 to the first sub-pin 2041 and / or the second sub-pin 2042, and the current flowing from the first sub-pin 2041 and / or the second sub-pin 2042 to the first pin 203.

[0105] It can be understood that the atomization device of any of the above embodiments receives an external input signal and generates a pin switching signal in response to an external input command. For example, the atomization device receives an input command to start, at this time, the heating element needs to start heating to atomize the atomization substrate. During the heating process, the controller or processor of the atomization device can generate a pin switching signal according to a preset rule to control the multi-pin switching circuit of any of the above embodiments to realize the switching of the current direction of the heating element during the operation of the atomization device.

[0106] In some embodiments, the controller or processor of the atomization device responds to an external input command, and the external input command can be triggered by a microphone or a button. For example, the atomization device can include a touch button, a button, or a voice control switch, etc. When the user needs to use the atomization device, the user can trigger the start switch to start the heating of the atomization device, that is, to determine that the user performs a start operation, indicating that the user needs to use the atomization device.

[0107] In some embodiments, the controller or processor of the atomization device generates the external input command in response to an external input command, including in response to a switching instruction representing the switching frequency of the current direction, according to the preset switching frequency of the current direction. For example, the preset switching frequency of the current direction is set when the atomization device is shipped, such as 2Hz, that is, a corresponding input command is generated every 0.5s in the process of using the atomization device, so as to switch the current direction between the two pins of the heating element every 0.5s.

[0108] Taking a double-fog atomization device as an example, the heating element including the first heating part 201 and the second heating part 202 can have the same impedance or different impedances.

[0109] Figure 4 The flowchart for obtaining the preset switching frequency of the current direction is provided for an embodiment of the present application. As shown in Figure 5 some embodiments, the first heating part 201 and the second heating part 202 have the same impedance, and the preset switching frequency of the current direction provided by the embodiment of the present application includes the following steps:

[0110] Step S401, obtaining the heat generation of the first heating part and / or the second heating part in a unit time;

[0111] Step S402, generating the frequency of the current direction switching according to the heat generation of the first heating part and / or the second heating part in a unit time.

[0112] It can be understood that when the first heating part 201 and the second heating part 202 have the same impedance, the same time is heated when the first heating part 201 or the second heating part 202 is activated alone, and the power at the pin as the current inflow end in the first heating part 201 or the second heating part 202 is the same, and the heat generation in a unit time is also the same. At this time, a certain frequency can be set according to the heat generation, an external input instruction is generated, and the current direction between the first pin 203 and the second pin 204 of the heating element is switched through the multi-pin switching circuit 104.

[0113] Figure 5 The flowchart for obtaining the preset switching frequency of the current direction is provided for another embodiment of the present application. As shown in Figure 6 some embodiments, the first heating part 201 and the second heating part 202 have different impedances, and the preset switching frequency of the current direction provided by the embodiment of the present application includes the following steps:

[0114] Step S501, obtaining the heat generation of the first heating part and the second heating part in a unit time, respectively;

[0115] Step S502, compare the heat generation of the first heat-generating part and the second heat-generating part in unit time, and determine the heat generation threshold of the first heat-generating part and the second heat-generating part.

[0116] Step S503, according to the heat generation threshold, determine the working period of the first heat-generating part and the second heat-generating part respectively, and generate the frequency of current direction switching.

[0117] It can be understood that when the first heat-generating part 201 and the second heat-generating part 202 have different impedances, the power at the pin as the current inflow end in the first heat-generating part 201 or the second heat-generating part 202 is different when the first heat-generating part 201 or the second heat-generating part 202 is activated alone, and the heat generation per unit time is also different, which exists a proportional relationship with the impedance of the two, and the different heat generation per unit time also leads to different possibilities of electrochemical corrosion, so the maximum heat generation / longest working time that can be tolerated by the two to minimize electrochemical corrosion is also different. At this time, different heat generation thresholds can be determined according to the heat generation at the pin as the current inflow end of the first heat-generating part 201 and the second heat-generating part 202, and then the working period of each can be determined according to the heat generation threshold of the first heat-generating part 201 and the second heat-generating part 202, that is, the working frequency of the first heat-generating part 201 and the second heat-generating part 202 can be obtained, and further the externally input instruction can be generated, and the current direction between the first pin 203 and the second pin 204 of the heating element is switched through the multi-pin switching circuit 104.

[0118] In some embodiments, for the case that the first heat-generating part 201 and the second heat-generating part 202 have different impedances, the different heat generation per unit time of the two can also be used as the basis for the first pin of the heating element as the current inflow end or the current outflow end.

[0119] Figure 6 A flowchart for generating a pin switching signal is provided in an embodiment of the present application. As shown in Figure 7 some embodiments, in step S301, the pin switching signal is generated, specifically including the following steps:

[0120] Step S601, detecting whether the user has a puffing action, and obtaining a puffing parameter according to the detection result; wherein the puffing parameter is the current puffing number or the current cumulative puffing time.

[0121] Step S602, generating a pin switching signal according to the puffing parameter.

[0122] Understandably, after the atomizing device is turned on, it detects the user's inhalation action. Upon detecting the user's inhalation action, it obtains inhalation parameters based on the detection results, and then generates a pin switching signal based on the inhalation parameters. The inhalation parameters can be the current number of inhalation ports, or the current cumulative inhalation time. That is, it can be considered that the pin switching signal is generated based on the current number of inhalation ports and / or the current cumulative inhalation time.

[0123] For example, if the suction parameter is the current number of suction ports, that is, after detecting a suction action from the user, a pin switching signal is generated based on the current number of suction ports. The pin switching signal can be a pulse signal. Specifically, by setting an appropriate suction port number threshold to correspond to the duration of the effective level of the pin switching signal, for example, setting the suction port number threshold to 2 times, that is, after detecting a suction action, the number of suction ports is accumulated to obtain the current number of suction ports. When the current number of suction ports is a multiple of 2, the level of the pin switching signal is switched once. That is, every time two suction actions from the user are detected, the effective level of the pin switching signal is switched once. In other words, every time two suction actions from the user are detected, the current direction between the two pins of the heating element is switched once through the pin switching signal.

[0124] For example, if the suction parameter is the current cumulative suction duration, that is, after detecting a suction action from the user, a pin switching signal is generated based on the current cumulative suction duration. The pin switching signal can be a pulse signal. Specifically, by setting an appropriate current cumulative suction duration threshold to correspond to the duration of the effective level of the pin switching signal, for example, setting the current cumulative suction duration threshold to 10s, the current cumulative suction duration is accumulated after detecting a suction action. Every 10s of the current cumulative suction duration, the level of the pin switching signal is switched once. That is, every 10s of the current cumulative suction duration, the effective level of the pin switching signal is switched once. In other words, every 10s of the accumulated suction duration from the user, the current direction between the two pins of the heating element is switched once through the pin switching signal.

[0125] In some embodiments, at least one of the following sensors can be installed in the atomizing device: a pressure sensor, a temperature sensor, a flow sensor, an airflow sensor, and a noise sensor. The user's inhalation behavior can be detected by using at least one of the following sensors to detect whether the user is inhaling.

[0126] Alternatively, touch buttons can be set up so that users can control the heating element to work when they need to inhale from the atomizing device, and record the number of times the user inhales.

[0127] For example, when a user uses the heating non-combustion atomization device, a new cigarette is installed for use, which can be through the collection of pressure, temperature, airflow, gas, noise and other information generated by the user's inhalation operation to determine that the user is smoking the heating non-combustion atomization device, thereby generating a smoking control instruction. Under the triggering of the smoking control instruction, the temperature control device controls the heating body to work. Of course, the touch button mode can also be used to generate the smoking control instruction.

[0128] It should be noted that the control method of the atomization device provided by the embodiments of the present application is not limited to use in a double-atomization device, and is also applicable to a three-atomization or multi-atomization device, and the same principle is used to control the current direction of the heating element through the multi-pin switching circuit to enable the first pin of the heating element and the sub-pins corresponding to different heating parts to be selectively or periodically connected to the positive electrode of the direct current power supply under control, so as to achieve the effect of reducing the electrochemical corrosion at the pin as the current inflow end.

[0129] The following will be described in detail Figure 7 A detailed description will be given to an embodiment in which the heating element is three-atomization (i.e., including three heating parts). The heating element includes a first heating part 201, a second heating part 202, and a third heating part 205. The three heating parts 201, 202, and 205 share a first pin 203. The first heating part 2021 has a first sub-pin 2041. The second heating part 2042 has a second sub-pin 2042. The third heating part has a third sub-pin 2043.

[0130] In this embodiment, the first sub-pin 2041, the second sub-pin 2042, the third sub-pin 2043, and the first pin 203 are respectively electrically connected to the multi-pin switching circuit. One or more heating parts are selected to be turned on through the multi-pin switching circuit, for example:

[0131] In an exemplary embodiment, the first heating part 201 and the second heating part 202 are turned on at the same time. The resistance value of the first heating part 201 is 0.6Ω. The resistance value of the second heating part 202 is 0.6Ω. The resistance value of the third heating part 20 is 0.9Ω. The supply voltage of the direct current power supply 102 is 3.75V. The three exemplary heating modes are: the third heating part 205 works independently, the resistance value of the third heating part 205 is the largest, and the total power is the lowest when it works alone, thus providing a low power gear; one of the first heating part 201 or the second heating part 202 works independently, the first heating part 201 and the second heating part 202 are in parallel, thus providing a medium power gear; the first heating part 201, the second heating part 202, and the third heating part 205 work at the same time, and since the total equivalent resistance is the smallest, the heating power is the highest, thus providing a high power gear.

[0132] Exemplarily, the resistance values of the first heating part 201 and the second heating part 202 can be different, and the resistance values of the first heating part 201 and the second heating part 202 can be in the range of 0.5-0.9Ω, for example, 0.5Ω, 0.6Ω, 0.7Ω or 0.9Ω.

[0133] Exemplarily, the resistance value of the third heating part 205 is greater than that of the first heating part 201 and the second heating part 202, and the resistance value of the third heating part 205 can be in the range of 0.8-1.3Ω, for example, 0.8Ω, 0.9Ω, 1.0Ω or 1.3Ω.

[0134] In the embodiment, the multi-pin switching circuit cooperates with the three-heating-type heating element shown in FIG. 1 to not only improve the service life of the atomization device by switching the current direction, but also realize multi-gear power output by using the multi-pin switching circuit. ​

[0135] The embodiment of the present application further provides a readable storage medium, and the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to realize each process of any embodiment of the control method of the atomization device, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0136] The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0137] The processor can be a central processing unit (CPU) or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0138] ​Those skilled in the art can understand that all or part of the functions of the various methods in the above embodiments can be realized by hardware or by a computer program. When all or part of the functions in the above embodiments are realized by a computer program, the program can be stored in a computer readable storage medium, which can include read-only memory, random access memory, magnetic disk, optical disk, hard disk, etc. The above functions are realized by executing the program by a computer. For example, the program is stored in the memory of the device, and the above functions are realized by executing the program in the memory by the processor. In addition, when all or part of the functions in the above embodiments are realized by a computer program, the program can also be stored in a storage medium such as a server, another computer, a disk, an optical disk, a flash disk or a mobile hard disk, and is saved in the memory of the local device by downloading or copying, or the system of the local device is updated by version, and the above functions are realized by executing the program in the memory by the processor.

[0139] In summary, the atomization device and the control method thereof provided by the embodiments of the present application can effectively reduce the electrochemical corrosion phenomenon of the unilaterally accumulated carbon of the heating element by controlling the current direction of the heating element to enable the first pin, the first sub-pin and the second sub-pin of the heating element to be selectively or periodically connected to the positive electrode of the direct current power supply under control, reduce the influence of the rate of heat conduction of the heating element to the atomization substrate, enable the atomization substrate to be more fully atomized, and effectively improve the smoking taste retention. At the same time, the unilateral carbon accumulation speed is also delayed, and the carbon accumulation rate of the heating element can be delayed by at least 2 times or more according to actual measurement, thereby improving the service life of the atomization device.

[0140] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative but not limiting. Those skilled in the art can make some simple deductions, modifications or substitutions according to the idea of the present application without departing from the scope of the present application and the protection scope of the claims, which also belong to the protection scope of the present application.

Claims

1. An atomizing device, characterized in that, The atomizing device includes a DC power supply and a heating element. The first pin and the second pin of the heating element are electrically connected to the DC power supply through a multi-pin switching circuit. The heating element has a first heating part and a second heating part. The first heating part and the second heating part share the first pin. The second pin includes a first sub-pin that is conductively connected to the first heating part and a second sub-pin that is conductively connected to the second heating part. The multi-pin switching circuit selectively or periodically controls the direction of the DC power supply current from flowing from the first pin to the first sub-pin and / or the second sub-pin to flowing from the first sub-pin and / or the second sub-pin to the first pin. Alternatively, the flow from the first sub-pin and / or the second sub-pin to the first pin may be switched to the flow from the first pin to the first sub-pin and / or the second sub-pin.

2. The atomizing device according to claim 1, characterized in that, The multi-pin switching circuit includes a control module, a first pin connection terminal, a second pin connection terminal, and a third pin connection terminal; The control module of the multi-pin switching circuit is used to acquire the pin switching signal. The first pin connection terminal of the multi-pin switching circuit is connected to the first pin, the second pin connection terminal of the multi-pin switching circuit is connected to the first sub-pin, and the third pin connection terminal of the multi-pin switching circuit is connected to the second sub-pin. The multi-pin switching circuit is used to selectively or periodically control the connection of the first pin or the first sub-pin and / or the second pin to the positive terminal of the DC power supply according to the pin switching signal.

3. The atomizing device according to claim 1, characterized in that, The multi-pin switching circuit includes a switching circuit; the switching circuit is used to control the DC power supply to be turned on as one or more channels according to the switching information represented by the pin switching signal, or to control and change the current direction of the DC power supply between the first pin, the first sub-pin, and the second sub-pin through logic control.

4. The atomizing device according to claim 1, characterized in that, The multi-pin switching circuit includes an inverter circuit; the inverter circuit is used to convert the DC output of the DC power supply into a sinusoidal current, and the direction of the current switches according to the waveform of the sinusoidal current.

5. The atomizing device according to claim 1, characterized in that, The current direction switching circuit includes an inverter circuit; the inverter circuit is used to convert the DC output from the DC power supply into a square wave current, the square wave current having a forward high level, a forward low level, a reverse high level, and a reverse low level; When the inverter circuit outputs current at a positive high level and a positive low level, the current direction is from the first pin to the first sub-pin and / or the second sub-pin; when the inverter circuit outputs current at a negative high level and a negative low level, the current direction is from the first sub-pin and / or the second sub-pin to the first pin. Alternatively, when the inverter circuit outputs current at a positive high level and a positive low level, the current direction is from the first sub-pin and / or the second sub-pin to the first pin; when the inverter circuit outputs current at a negative high level and a negative low level, the current direction is from the first pin to the first sub-pin and / or the second sub-pin.

6. The atomizing device according to claim 1, characterized in that, The heating element further includes a third heating part and a third sub-pin; one conductive side of the third heating part is electrically connected to the first pin, and the other conductive side is electrically connected to the third sub-pin, and the third sub-pin is electrically connected to the multi-pin switching circuit.

7. The atomizing device according to claim 6, characterized in that, The multi-pin switching circuit selectively or periodically switches between multiple heating modes, wherein the resistance values ​​of the first heating element and the second heating element are respectively less than the resistance value of the third heating element; the heating modes include: the third heating element working independently, one of the first heating element or the second heating element working independently, the first heating element and the second heating element working simultaneously, and the first heating element, the second heating element, and the third heating element working simultaneously.

8. The atomizing device according to claim 7, characterized in that, The resistance of the first heating element is 0.5-0.9Ω, the resistance of the second heating element is 0.5-0.9Ω, and the resistance of the third heating element is 0.8-1.3Ω.

9. A control method for an atomizing device, the atomizing device comprising a DC power supply and two heating elements, wherein a first pin and a second pin of the heating elements are electrically connected to the DC power supply via a multi-pin switching circuit; the heating elements have a first heating part and a second heating part, the first heating part and the second heating part sharing the first pin, and the second pin comprising a first sub-pin conductively connected to the first heating part and a second sub-pin conductively connected to the second heating part; Its features are, The control method includes: In response to an external input command, a pin switching signal is generated; Based on the pin switching signal, the multi-pin switching circuit can be selectively or periodically controlled to switch the current direction of the heating element; The current direction includes flow from the first pin to the first sub-pin and / or the second sub-pin, and flow from the first sub-pin and / or the second sub-pin to the first pin.

10. The control method for an atomizing device according to claim 9, characterized in that the response to an external input command includes: Obtain the preset current direction switching frequency; The external input command is generated by switching the frequency according to the preset current direction.

11. The control method for the atomizing device according to claim 10, characterized in that, when the impedances of the first heating element and the second heating element are the same, obtaining the preset current direction switching frequency includes: Obtain the heat output of the first heating element and / or the second heating element per unit time; The frequency of current direction switching is generated based on the heat generated by the first heating element and / or the second heating element per unit time.

12. The control method for the atomizing device according to claim 11, characterized in that, when the impedances of the first heating element and the second heating element are not the same, obtaining the preset current direction switching frequency includes: The heat generated by the first heating element and the second heating element per unit time is obtained respectively; By comparing the heat output of the first heating element and the second heating element per unit time, the heat output threshold of the first heating element and the second heating element is determined. Based on the heat generation threshold, the working cycles of the first heating element and the second heating element are determined respectively, and the frequency of the current direction switching is generated.

13. The control method for the atomizing device according to claim 9, characterized in that the response to an external input command includes: Detect whether the user is making a suction motion, and obtain suction parameters based on the detection results; Wherein, the suction parameter is the current number of suction ports or the current cumulative suction duration; Based on the suction parameters, an external input command is generated.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer-executable program or instructions, which, when executed by a processor, are used to implement the steps of the control method for the atomizing device as described in any one of claims 9 to 13.

Images