CN220000759U - Heating circuit, heating device and electronic atomizer for regulating current direction by periodic voltage - Google Patents

Abstract

The utility model belongs to the technical field of electronic atomization, solves the technical problem that in the prior art, the amount of atomized gas sucked by a user is continuously changed, so that the atomization rate of atomized liquid needs to be matched with the suction amount of the atomized gas, and provides a heating circuit, a heating device and an electronic atomizer, wherein the current direction of the heating circuit is regulated by periodic voltage. The heating circuit comprises a step-up and step-down circuit, a heating element and a power supply circuit, wherein the output end of the step-up and step-down circuit is connected with the power supply end of the power supply circuit, the heating element comprises a first end and a second end, and the power supply circuit comprises a first circuit and a second circuit; and the first circuit and the second circuit respectively comprise at least two wiring terminals, and the different wiring terminals form power supply circuits with different current directions. According to the utility model, the input voltage which changes periodically is generated through the step-up circuit, so that the power supply circuits with different current directions are conducted, and the heating power of the heating element is regulated, so that the atomization rate of the atomized liquid is matched with the inhalation rate of the atomized gas.

Description

Heating circuit, heating device and electronic atomizer for regulating current direction by periodic voltage

Technical Field

The present utility model relates to the field of circuit detection technologies, and in particular, to a heating circuit, a heating device, and an electronic atomizer for adjusting a current direction with a periodic voltage.

Background

The electronic atomizer is characterized in that after the atomizing device and the power supply device are electrified, the power supply device supplies power to a heating body of the atomizing device, so that the heating body heats, and atomized liquid in the atomizing cavity is atomized through heat energy generated by the heating body; the user can inhale the atomized gas after atomization.

In the prior art, the amount and the frequency of the absorption of the atomizing gas generated by atomizing the atomizing liquid by the electronic atomizer are not constant, so that the atomizing rate of the atomizing liquid needs to be continuously adjusted in order to meet the requirement of the user on the atomizing gas, and the experience effect of the user and the utilization efficiency of the atomizing liquid are improved.

Disclosure of Invention

In view of the above, the embodiments of the present utility model provide a heating circuit, a heating device and an electronic atomizer for adjusting a current direction with a periodic voltage, so as to solve a technical problem that an atomization rate of an atomized liquid needs to be matched with an inhalation amount of the atomized gas due to a continuous variation of an inhalation amount of the atomized gas by a user. The technical scheme adopted by the utility model is as follows:

the utility model provides a heating circuit for regulating the current direction by periodic voltage, which comprises a step-up and step-down circuit, a heating element and a power supply circuit, wherein the output end of the step-up and step-down circuit is connected with the power supply end of the power supply circuit, the heating element comprises a first end and a second end, and the power supply circuit comprises a first circuit and a second circuit; the first circuit is electrically connected with the first end of the heating element, the second circuit is electrically connected with the second end of the heating element, the first circuit and the second circuit both comprise at least two wiring terminals, each wiring terminal of the first circuit corresponds to each wiring terminal of the second circuit one by one to form at least two power supply circuits, and the current directions of at least two power supply circuits are different.

Preferably, the first circuit includes a first sub-circuit and a second sub-circuit, input ends of the first sub-circuit and the second sub-circuit are both used for being connected with an enable signal control end, an enable signal of the enable signal control end is used for controlling on-off of the first sub-circuit and the second sub-circuit, and output ends of the first sub-circuit and the second sub-circuit are connected with a first end of the heating element in a common point mode.

Preferably, the first sub-circuit comprises a first resistor, a second resistor and a first MOS tube, wherein the source electrode of the first MOS tube is in joint with one end of the first resistor and is used for being connected with the control end of the enabling signal, the other end of the first resistor is in joint with the grid electrode of the first MOS tube and one end of the second resistor, the other end of the second resistor is in joint with the drain electrode of the first MOS tube, and the other end of the second resistor is in joint with the first end of the heating element.

Preferably, the second sub-circuit includes a third resistor and a second MOS transistor, where a source electrode of the second MOS transistor is co-point with one end of the third resistor and is used to connect to the enable signal control end, another end of the third resistor is co-point with a gate electrode of the second MOS transistor and connects to the first end of the heating element, and a drain electrode of the second MOS transistor is grounded.

Preferably, the second circuit includes a third sub-circuit and a fourth sub-circuit, the input ends of the third sub-circuit and the fourth sub-circuit are both used for being connected with an enable signal control end, an enable signal of the enable signal control end is used for controlling the on-off of the third sub-circuit and the fourth sub-circuit, and the output ends of the third sub-circuit and the fourth sub-circuit are in common point connection with the second end of the heating element.

Preferably, the third sub-circuit comprises a fourth resistor and a third MOS tube, wherein the source electrode of the third MOS tube is in common point with one end of the fourth resistor and is used for being connected with the control end of the enabling signal, the other end of the fourth resistor is in common point with the grid electrode of the third MOS tube and is connected with the power supply, and the drain electrode of the third MOS tube is connected with the second end of the heating element.

Preferably, the fourth sub-circuit includes a fifth resistor and a fourth MOS transistor, where a source of the fourth MOS transistor is co-point with one end of the fifth resistor and is used to connect to the enable signal control end, the other end of the fifth resistor is co-point with a gate of the fourth MOS transistor and connects to a second end of the heating element, and a drain of the fourth MOS transistor is grounded.

Preferably, the step-up/step-down circuit includes: the MOS transistor comprises a fifth MOS transistor, a sixth MOS transistor, a seventh MOS transistor, an eighth MOS transistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a first inductor;

the source electrode of the fifth MOS tube is connected with one end of a sixth resistor in a common mode, the other end of the sixth resistor is connected with a power supply in a common mode, the drain electrode of the fifth MOS tube is connected with the first end of the first inductor, the source electrode of the sixth MOS tube is connected with one end of a seventh resistor in a common mode, the other end of the seventh resistor is connected with the first end of the first inductor in a common mode, and the drain electrode of the sixth MOS tube is grounded;

the source electrode of the seventh MOS tube is connected with one end of the eighth resistor in a common mode to be connected with the control signal input end, the other end of the eighth resistor is connected with the grid electrode of the seventh MOS tube in a common mode to be used as a power output end, the power end of the common circuit is connected in parallel, the drain electrode of the seventh MOS tube is connected with the second end of the first inductor, the source electrode of the eighth MOS tube is connected with one end of the ninth resistor in a common mode to be connected with the control signal input end, the other end of the ninth resistor is connected with the grid electrode of the eighth MOS tube in a common mode to be connected with the second end of the first inductor, and the drain electrode of the eighth MOS tube is grounded.

The utility model also provides a heating device for adjusting the current direction by the periodic voltage, which comprises the heating circuit for adjusting the current direction by the periodic voltage.

The utility model also provides an electronic atomizer, which comprises a power supply assembly and an atomization assembly, wherein the atomization assembly is internally provided with the heating circuit for adjusting the current direction by periodic voltage according to any one of the above, and the power supply assembly and the atomization assembly are connected in a pluggable manner.

In summary, the beneficial effects of the utility model are as follows:

the heating circuit, the heating device and the electronic atomizer which are used for adjusting the current direction by the periodic voltage comprise a step-up and step-down circuit, a heating element and a power supply circuit, wherein an external power supply obtains a periodic voltage through the step-up and step-down circuit and outputs the periodic voltage to the power supply circuit; and then, a plurality of wiring terminals which can be used for being electrically connected with a power supply are respectively arranged on the first circuit and the second circuit, when the input periodic voltage is in different states, the first circuit and the second circuit of the power supply circuit are connected into the heating element in different states, so that the current direction flowing through the heating element is different, the heating power adjustment of heating wire heat is realized, the atomization rate of atomized liquid is convenient to finish, the atomization rate of the atomized liquid is required to be matched with the atomized air suction quantity, and the use efficiency and the user experience effect of the atomized liquid are improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings required to be used in the embodiments of the present utility model will be briefly described, and it is within the scope of the present utility model to obtain other drawings according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a heating circuit for adjusting current direction with periodic voltage in embodiment 1 of the present utility model;

FIG. 2 is a schematic circuit diagram of a power supply circuit in embodiment 1 of the present utility model;

FIG. 3 is a schematic diagram of a step-up/step-down circuit in embodiment 1 of the present utility model;

fig. 4 is a schematic structural diagram of an electronic atomizer in embodiment 3 of the present utility model;

fig. 5 is a schematic view showing a cross-section of an atomizing assembly of an electronic atomizer according to embodiment 3 of the present utility model;

fig. 6 is a schematic diagram showing an electrode structure of an electronic atomizer according to embodiment 3 of the present utility model;

reference numerals of fig. 1 to 6:

100. a power supply assembly; 200. an atomizing assembly; 210. an air inlet; 220. an air outlet; 230. an air flow channel; 231. a plug hole; 232 slots; 251. a first electrode contact; 252. a second electrode contact; 253. and a third electrode contact.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element. If not conflicting, the embodiments of the present utility model and the features of the embodiments may be combined with each other, which are all within the protection scope of the present utility model.

Example 1

Referring to fig. 1, the heating circuit includes a step-up and step-down circuit, a heating element and a power supply circuit, wherein an output end of the step-up and step-down circuit is connected with a power supply end of the power supply circuit, the heating element includes a first end and a second end, and the power supply circuit includes a first circuit and a second circuit; the first circuit is electrically connected with the first end of the heating element, the second circuit is electrically connected with the second end of the heating element, the first circuit and the second circuit both comprise at least two wiring terminals, each wiring terminal of the first circuit corresponds to each wiring terminal of the second circuit one by one to form at least two power supply circuits, and the current directions of at least two power supply circuits are different.

Specifically, the step-up and step-down circuit performs step-up processing or step-down processing on the input voltage, so that the voltage input into the power supply circuit changes periodically, the input point voltage is in different states of the power supply circuit at different moments of the voltage period, for example, when the output voltage of the step-up and step-down circuit is in a first stage of the period (for example, an upper half period of a sine wave), the current of the power supply circuit flows in from a first end of the heating element and flows out from a second end, and when the output voltage of the step-up and step-down circuit is in a second period of the period voltage (for example, a lower half period of the sine wave), the current of the power supply circuit flows in from the second end of the heating element and flows out from the first end; the two ends of the heating element are respectively and electrically connected with a first circuit and a second circuit for supplying power to the heating element, and when the input ends of the first circuit and the second circuit are connected with a power supply, the power supply circuit of the heating element is electrically connected; the first circuit and the second circuit all comprise a plurality of wiring terminals electrically connected with a power supply, when the wiring terminals of the first circuit and the second circuit which are connected with the power supply are different, the power supply circuit with different current directions can be obtained, so that periodic voltage is output to heat the heating element, the heating power of atomized liquid is variable, and the atomization efficiency of the atomized liquid is matched with the actual conditions of the atomized gas sucked by a user (sucking quantity, sucking frequency and the like).

In an embodiment, the first circuit includes a first sub-circuit and a second sub-circuit, input ends of the first sub-circuit and the second sub-circuit are both used for being connected with an enable signal control end, an enable signal of the enable signal control end is used for controlling on-off of the first sub-circuit and the second sub-circuit, output ends of the first sub-circuit and the second sub-circuit are connected with a first end of the heating element in a common mode, and output ends of the first sub-circuit and the second sub-circuit are connected with the first end of the heating element in a common mode.

Specifically, the first circuit includes two enable signal control terminals for controlling the power supply to be connected, each enable signal control terminal corresponds to the first sub-circuit and the second sub-circuit respectively, the output terminals of the first sub-circuit and the second sub-circuit are electrically connected with the first end of the heating element, the first sub-circuit or the second sub-circuit of the first circuit is determined to be connected with the power supply through the enable signal control terminal, when the first sub-circuit is connected with the power supply, the current direction of the power supply circuit is the first direction, when the second sub-circuit is connected with the power supply, the current direction of the power supply circuit is the second direction, the first direction is opposite to the second direction, and it can be understood that when the first sub-circuit is connected with the power supply, the periodic voltage output by the power supply is effective in the negative direction, and similarly, when the second sub-circuit is connected with the power supply, the periodic voltage output by the power supply is effective in the positive direction.

In an embodiment, referring to fig. 2, the first sub-circuit includes a first resistor, a second resistor and a first MOS transistor, wherein a source electrode of the first MOS transistor is co-connected with one end of the first resistor for connecting with an enable signal control end, another end of the first resistor is co-connected with a gate electrode of the first MOS transistor for connecting with one end of the second resistor, and another end of the second resistor is co-connected with a drain electrode of the first MOS transistor for connecting with a first end of the heating element.

In an embodiment, referring to fig. 2, the second sub-circuit includes a third resistor and a second MOS transistor, wherein a source electrode of the second MOS transistor is co-connected with one end of the third resistor for connecting to the enable signal control end, another end of the third resistor is co-connected with a gate electrode of the second MOS transistor for connecting to the first end of the heating element, and a drain electrode of the second MOS transistor is grounded.

In an embodiment, the second circuit includes a third sub-circuit and a fourth sub-circuit, input ends of the third sub-circuit and the fourth sub-circuit are both used for being connected with an enable signal control end, an enable signal of the enable signal control end is used for controlling on-off of the third sub-circuit and the fourth sub-circuit, and output ends of the third sub-circuit and the fourth sub-circuit are connected with the second end of the heating element in a joint mode.

Specifically, the second circuit includes two enable signal control terminals for controlling the power supply to be connected, each enable signal control terminal corresponds to a third sub-circuit and a fourth sub-circuit respectively, the output terminals of the third sub-circuit and the fourth sub-circuit are electrically connected with the first terminal of the heating element, the third sub-circuit or the fourth sub-circuit of the second circuit is determined to be connected with the power supply through the enable signal control terminal, when the third sub-circuit is connected with the power supply, the current direction of the power supply circuit is the first direction, when the fourth sub-circuit is connected with the power supply, the current direction of the power supply circuit is the second direction, the first direction is opposite to the second direction, and it can be understood that when the third sub-circuit is connected with the power supply, the periodic voltage output by the power supply is effective in the negative direction, and similarly, when the fourth sub-circuit is connected with the power supply, the periodic voltage output by the power supply is effective in the positive direction.

In an embodiment, referring to fig. 2, the third sub-circuit includes a fourth resistor and a third MOS transistor, a source of the third MOS transistor is co-connected with one end of the fourth resistor for connecting to the enable signal control end, another end of the fourth resistor is co-connected with a gate of the third MOS transistor for connecting to a power supply, and a drain of the third MOS transistor is connected to the second end of the heating element.

In an embodiment, referring to fig. 2, the fourth sub-circuit includes a fifth resistor and a fourth MOS transistor, wherein a source of the fourth MOS transistor is co-connected with one end of the fifth resistor for connecting to the enable signal control end, another end of the fifth resistor is co-connected with a gate of the fourth MOS transistor for connecting to the second end of the heating element, and a drain of the fourth MOS transistor is grounded.

Specifically, the heating circuit adopts an H-bridge structure with MOS transistors being installed, the positions TI and T2 are a first end and a second end of the heating element, P1, P2, P3 and P4 are control signal input ends for disconnecting and connecting the first circuit and the second circuit with a power terminal, specifically, P1, P2, P3 and P4 are connected to an IO port of the controller MCU, so that the disconnection and connection of each circuit with a power supply are controlled by the controller MCU, when the first MOS transistor Q1 of the first sub-circuit and the third MOS transistor Q3 of the third sub-circuit are connected, P1 and P3 are effectively connected to form a first power supply circuit, current flows from T1 to T2 at this moment, and when the second MOS transistor Q2 of the second sub-circuit and the fourth MOS transistor Q4 of the fourth sub-circuit are connected to form a second power supply circuit, current flows from T2 to T1 at this moment.

In one embodiment, referring to fig. 3, the step-up/step-down circuit includes: the MOS transistor comprises a fifth MOS transistor, a sixth MOS transistor, a seventh MOS transistor, an eighth MOS transistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a first inductor;

the source electrode of the fifth MOS tube is connected with one end of a sixth resistor in a common mode, the other end of the sixth resistor is connected with a power supply in a common mode, the drain electrode of the fifth MOS tube is connected with the first end of the first inductor, the source electrode of the sixth MOS tube is connected with one end of a seventh resistor in a common mode, the other end of the seventh resistor is connected with the first end of the first inductor in a common mode, and the drain electrode of the sixth MOS tube is grounded;

the source electrode of the seventh MOS tube is connected with one end of the eighth resistor in a common mode to be connected with the control signal input end, the other end of the eighth resistor is connected with the grid electrode of the seventh MOS tube in a common mode to be used as a power output end, the power end of the common circuit is connected in parallel, the drain electrode of the seventh MOS tube is connected with the second end of the first inductor, the source electrode of the eighth MOS tube is connected with one end of the ninth resistor in a common mode to be connected with the control signal input end, the other end of the ninth resistor is connected with the grid electrode of the eighth MOS tube in a common mode to be connected with the second end of the first inductor, and the drain electrode of the eighth MOS tube is grounded.

In an embodiment, the heating element is a heating wire, and an inductance coil is wound around a pin position of the heating wire.

Specifically, heating element is the heater, and the heater itself does not possess inductance characteristic, through winding inductor in the pin position of heater to make heating element's impedance value present specific change, can be used to the atomizing subassembly of electronic atomizer to carry out true and false discernment, need not to increase extra encryption circuit, improves user experience effect and practices thrift the cost.

The heating circuit for regulating the current direction by the periodic voltage comprises a step-up and step-down circuit, a heating element and a power supply circuit, wherein an external power supply obtains a periodic voltage through the step-up and step-down circuit and outputs the periodic voltage to the power supply circuit; and then, a plurality of wiring terminals which can be used for being electrically connected with a power supply are respectively arranged on the first circuit and the second circuit, when the input periodic voltage is in different states, the first circuit and the second circuit of the power supply circuit are connected into the heating element in different states, so that the current direction flowing through the heating element is different, the heating power adjustment of heating wire heat is realized, the atomization rate of atomized liquid is convenient to finish, the atomization rate of the atomized liquid is required to be matched with the atomized air suction quantity, and the use efficiency and the user experience effect of the atomized liquid are improved.

Example 2

Embodiment 2 is an application embodiment of the heating circuit for adjusting a current direction with a periodic voltage according to embodiment 1, and embodiment 2 provides a heating device for adjusting a current direction with a periodic voltage, where the heating device includes a pluggable power end and an atomized liquid end, the power end is provided with a first electrode and a second electrode, the atomized liquid end is provided with a first electrode contact corresponding to the first electrode and a second electrode contact corresponding to the second electrode, the power end and the atomized liquid end are electrically connected in a pluggable manner, and the power end supplies power to the atomized liquid end, so that atomized liquid liquefaction of the atomized liquid end generates atomized gas.

Because the atomized liquid is the consumable, through the components of a whole that can function independently setting, power end and atomized liquid end carry out plug and connect, and the atomized liquid end is directly changed after the atomized liquid is used up, and it is convenient to change, and atomized liquid end sanitation and hygiene improves user experience effect.

The heating device for regulating the current direction by the periodic voltage comprises a step-up and step-down circuit, a heating element and a power supply circuit, wherein an external power supply obtains a periodic voltage through the step-up and step-down circuit and outputs the periodic voltage to the power supply circuit; and then, a plurality of wiring terminals which can be used for being electrically connected with a power supply are respectively arranged on the first circuit and the second circuit, when the input periodic voltage is in different states, the first circuit and the second circuit of the power supply circuit are connected into the heating element in different states, so that the current direction flowing through the heating element is different, the heating power adjustment of heating wire heat is realized, the atomization rate of atomized liquid is convenient to finish, the atomization rate of the atomized liquid is required to be matched with the atomized air suction quantity, and the use efficiency and the user experience effect of the atomized liquid are improved.

Example 3

Embodiment 3 is a specific application of the heating circuit and the heating device for adjusting the current direction with the periodic voltage according to embodiment 1 and embodiment 2, and embodiment 3 provides an electronic atomizer including the heating circuit for adjusting the current direction with the periodic voltage and the heating device for adjusting the current direction with the periodic voltage.

Referring to fig. 4, 5 and 6, the electronic atomizer includes a power pack 100 and an atomizing assembly 200, which are electrically connected in a pluggable manner; because the atomized liquid is the consumable, through separately setting up power supply unit 100 and atomizing subassembly 200 and carrying out plug connection, set up heating circuit at atomizing subassembly 200 end, all set up controller, power, timing circuit and sampling circuit at power supply unit 100 end, direct change atomizing subassembly 200 after the atomized liquid uses up, guarantee the quality of atomized liquid in the atomizing subassembly 200, improve user experience effect.

The atomizing assembly 200 is used for atomizing an atomized liquid, the atomizing assembly 200 is provided with an air flow channel 230, an air inlet 210 and an air outlet 220, one end of the air flow channel 230 is communicated with the air inlet 210, and the other opposite end is communicated with the air outlet 220; the aforementioned nebulizable liquid is in a liquid state at ordinary temperature and may be stored in the nebulization assembly 200. Such liquids atomize when heated to a certain temperature. The atomizing assembly 200 has an atomizing core that can atomize the nebulizable liquid by heating. The user inhales at the position of the air outlet 220 of the atomizing assembly 200, and because the air flow channel 230 communicates with the air outlet 220, a negative pressure is generated in the air flow channel 230. Also, since the air flow channel 230 communicates with the air inlet 210, air outside the atomizing assembly 200 enters the air flow channel 230 from the air inlet 210 under the action of the negative pressure in the air flow channel. The gas entering the gas flow channel 230 is mixed with the atomized liquid and then flows out of the gas outlet 220 and is inhaled by the user.

The power supply assembly 100 is configured to provide electric energy for the atomizing assembly 200, the power supply assembly 100 and the atomizing assembly 200 are detachably connected at a first relative position or a second relative position, the power supply assembly 100 is provided with a first electrode and a second electrode, the atomizing assembly 200 is provided with a first electrode contact 251 corresponding to the first electrode and a second electrode contact 252 corresponding to the second electrode, the power supply of the power supply assembly 100 supplies power to the atomizing assembly 200, and then a heating circuit in the atomizing assembly 200 heats the nebulizable liquid, so that the nebulized gas generated by the nebulized liquid is introduced into the air flow channel 230 and mixed with the gas in the air flow channel 230, so that a user can inhale the nebulized gas through the air outlet.

The power assembly 100 may be detachably coupled to the atomizing assembly 200 in any one of two different relative positions, namely the first and second relative positions described above. The foregoing relative positions are intended to refer to the relative positional relationship between the power supply assembly 100 and the atomizing assembly 200, irrespective of the positional relationship with other objects. For example, the power supply assembly 100 is on one side or the other side of the atomizing assembly 200 along the length direction thereof, for example, the power supply assembly 100 is on one side or the other side of the atomizing assembly 200 along the width direction thereof, for example, the power supply assembly 100 is at a certain angular position of the atomizing assembly 200, for example, the power supply assembly 100 is at a certain axial position of the atomizing assembly 200, etc., and the electrode contacts include a first electrode contact 251 and a second electrode contact 252 which are symmetrical with respect to a reference plane.

The air flow channel 230 is formed with a plugging hole 231 towards one end of the air inlet 210, the atomizing assembly 200 is further provided with a slot 232 and a plurality of axisymmetrically arranged electrode contacts, the slot 232 is not communicated with the air flow channel 230, the slot 232 and the plugging hole 231 are positioned at the same end of the atomizing assembly 200, one air inlet end of the air flow channel 230 is designed into a plugging hole 231, the tail end of the plugging hole 231 is the air inlet 210, and the symmetry axes of the slot 232 and the plugging hole 231 are identical to those of the plurality of electrode contacts.

When an electrical connection is desired between the atomizing assembly 200 and the power supply assembly 100, electrodes are often provided on the atomizing assembly 200 and the power supply assembly 100, wherein the portion of the electrode on the atomizing assembly 200 that contacts the electrode on the power supply is referred to herein as an electrode contact. The number of electrodes on the atomizing assembly 200 is often multiple, one electrode contact for each electrode. In this embodiment, the electrode contacts on the atomizing assembly 200 are arranged in an axisymmetric manner, that is, the projection of the electrode contacts on the atomizing assembly 200 on a reference plane perpendicular to the length direction of the electronic atomizer is symmetric about a given symmetry axis on the reference plane.

With the foregoing structure, when the first and second relative positions of the atomizing assembly 200 and the power supply assembly 100 are 180 degrees apart, the positions and shapes of the electrode contacts on the atomizing assembly 200 are identical in the connection manner of the two different positions. Thus, regardless of whether the atomizing assembly 200 and the power supply assembly 100 are connected in a first relative position or a second relative position, the electrode contacts on the atomizing assembly 200 are capable of forming a reliable electrical connection with the power supply assembly 100. As a preferred embodiment, the electrode contacts on the power supply assembly 100 may also be arranged to be axisymmetric and the symmetry axis is the same as the symmetry axis of the electrode contacts on the atomizing assembly 200.

When the power supply assembly 100 is connected with the atomizing assembly 200 at the first relative position, the first electrode contact 251 is electrically connected with the positive electrode of the power supply assembly 100, and the second contact is electrically connected with the negative electrode of the power supply assembly 100; when the power supply assembly 100 is connected to the atomizing assembly 200 in the second relative position, the first electrode contact 251 is electrically connected to the negative electrode of the power supply assembly 100, and the second contact is electrically connected to the positive electrode of the power supply assembly 100. The first relative position connection and the second relative position connection correspond to two different sucking modes respectively, and the sucking modes comprise oral sucking and pulmonary sucking; it should be noted that: the directions of the currents flowing into the heating element by the corresponding heating circuits are different, such as: when the mouth suction current is T1 and flows to T2, the lung suction current flows from T2 to T1, and further, when the mouth suction is adopted by a user, the controller MCU outputs a control signal through the IO port to conduct the first MOS tube Q1 and the third MOS tube Q3, so that the current flows from T1 to T2; when a user adopts lung inhalation, the controller MCU outputs a control signal through the IO port to conduct the second MOS tube Q2 and the fourth MOS tube Q4, so that current flows from T2 to T1.

Lung aspiration and oral aspiration are: the user can absorb the atomized liquid by heating and atomizing the atomized liquid in the heating element. The lung inhalation is that a user directly inhales the atomized gas converted by the atomized liquid into the lung, and has the characteristics of high speed and large inhalation amount; the mouth suction is that the user sucks the atomized air converted by the atomized liquid into the mouth, and the atomized air stays in the mouth for a certain time and then enters the lung, and the mouth suction has the characteristics of low suction speed, small single suction amount and long time.

Since the power supply assembly 100 has a positive output and a negative output, the electrode contacts of the atomizing assembly 200 in this embodiment are also correspondingly provided with two electrode contacts that are symmetrical about the reference plane. The atomizing assembly 200 and the power supply assembly 100 can be connected to both the positive and negative poles of the power supply assembly 100, whether connected in a first relative position or a second relative position. And the connection of the positive electrode and the negative electrode of the power supply corresponding to the two opposite positions is just opposite, and the control circuit in the power supply assembly 100 can quickly identify the relative position relationship when the atomizing assembly 200 and the power supply assembly 100 are connected according to the polarity of the power supply connection.

In this embodiment, the plurality of axisymmetrically arranged electrode contacts further includes a third electrode contact 253, and the third electrode contact 253 is electrically connected to a signal input and/or output terminal of the power supply assembly 100.

The electronic atomizer of the present embodiment may utilize the third electrode contact 253 to enable information or data to be transferred between the power supply assembly 100 and the atomizing assembly 200 via electrical signals. Wherein the third electrode contact 253 may be of a shape symmetrical about the aforementioned axis. In this embodiment, the power module 100 is provided with an electrode for transmitting signals.

It should be noted that: the connection at the first relative position is referred to as a forward connection of the atomizing assembly 200 to the power supply assembly 100, and the connection at the second relative position is referred to as a reverse connection of the atomizing assembly 200 to the power supply assembly 100.

The electronic atomizer comprises a heating element and a power supply circuit for supplying power to the heating element, wherein the power supply circuit comprises a first circuit and a second circuit, and output ends of the first circuit and the second circuit are respectively and electrically connected with two ends of the heating element; and then, a plurality of wiring terminals which can be used for being electrically connected with a power supply are respectively arranged on the first circuit and the second circuit, when the wiring terminals of the first circuit and the second circuit are connected with the power supply are different, a power supply circuit with different current directions is obtained, the power supply circuit with different current directions supplies power to the heating element, and the voltage of any periodic waveform can be used for supplying power to the heating wire, so that the heating power adjustment of heating wire heat is realized, the atomization rate of the atomized liquid is conveniently realized, the atomization rate of the atomized liquid needs to be matched with the atomized air intake, and the use efficiency and the user experience effect of the atomized liquid are improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The heating circuit is characterized by comprising a step-up and step-down circuit, a heating element and a power supply circuit, wherein the output end of the step-up and step-down circuit is connected with the power supply end of the power supply circuit, the heating element comprises a first end and a second end, the telecommunication end is connected with the heating element, and the power supply circuit comprises a first circuit and a second circuit; the first circuit is electrically connected with the first end of the heating element, the second circuit is electrically connected with the second end of the heating element, the first circuit and the second circuit both comprise at least two wiring terminals, each wiring terminal of the first circuit corresponds to each wiring terminal of the second circuit one by one to form at least two power supply circuits, and the current directions of at least two power supply circuits are different.

2. The heating circuit for regulating current direction at periodic voltage according to claim 1, wherein said first circuit comprises a first sub-circuit and a second sub-circuit, wherein input terminals of said first sub-circuit and said second sub-circuit are each adapted to be connected to an enable signal control terminal, an enable signal of said enable signal control terminal is adapted to control on-off of said first sub-circuit and said second sub-circuit, and output terminals of said first sub-circuit and said second sub-circuit are commonly connected to a first terminal of said heating element.

3. The heating circuit for adjusting current direction with periodic voltage according to claim 2, wherein the first sub-circuit comprises a first resistor, a second resistor and a first MOS tube, wherein a source electrode of the first MOS tube is in common connection with one end of the first resistor for connecting an enabling signal control end, the other end of the first resistor is in common connection with a grid electrode of the first MOS tube and one end of the second resistor for connecting a power supply, and the other end of the second resistor is in common connection with a drain electrode of the first MOS tube for connecting a first end of the heating element.

4. The heating circuit for adjusting current direction with periodic voltage according to claim 2, wherein the second sub-circuit comprises a third resistor and a second MOS transistor, wherein a common point of a source electrode of the second MOS transistor and one end of the third resistor is used for connecting an enable signal control end, the other end of the third resistor and a grid electrode of the second MOS transistor are connected with a first end of the heating element in a common point mode, and a drain electrode of the second MOS transistor is grounded.

5. The heating circuit for regulating current direction at periodic voltage according to claim 1, wherein said second circuit comprises a third sub-circuit and a fourth sub-circuit, wherein the input terminals of said third sub-circuit and said fourth sub-circuit are each adapted to be connected to an enable signal control terminal, the enable signal of said enable signal control terminal is adapted to control the on-off of said third sub-circuit and said fourth sub-circuit, and the output terminals of said third sub-circuit and said fourth sub-circuit are commonly connected to the second terminal of said heating element.

6. The heating circuit for adjusting current direction with periodic voltage according to claim 5, wherein the third sub-circuit comprises a fourth resistor and a third MOS tube, wherein a common point of a source electrode of the third MOS tube and one end of the fourth resistor is used for connecting an enabling signal control end, the other end of the fourth resistor and a grid electrode of the third MOS tube are connected with a power supply in a common point mode, and a drain electrode of the third MOS tube is connected with a second end of the heating element.

7. The heating circuit for adjusting current direction with periodic voltage according to claim 5, wherein the fourth sub-circuit comprises a fifth resistor and a fourth MOS tube, wherein a common point of a source electrode of the fourth MOS tube and one end of the fifth resistor is used for connecting an enabling signal control end, the other end of the fifth resistor and a grid electrode of the fourth MOS tube are connected with a second end of the heating element in a common point mode, and a drain electrode of the fourth MOS tube is grounded.

8. The heating circuit for adjusting a current direction at a periodic voltage according to any one of claims 1 to 7, wherein the step-up/step-down circuit comprises: the MOS transistor comprises a fifth MOS transistor, a sixth MOS transistor, a seventh MOS transistor, an eighth MOS transistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a first inductor;

the source electrode of the fifth MOS tube is connected with one end of a sixth resistor in a common mode, the other end of the sixth resistor is connected with a power supply in a common mode, the drain electrode of the fifth MOS tube is connected with the first end of the first inductor, the source electrode of the sixth MOS tube is connected with one end of a seventh resistor in a common mode, the other end of the seventh resistor is connected with the first end of the first inductor in a common mode, and the drain electrode of the sixth MOS tube is grounded;

the source electrode of the seventh MOS tube is connected with one end of the eighth resistor in a common mode to be connected with the control signal input end, the other end of the eighth resistor is connected with the grid electrode of the seventh MOS tube in a common mode to be used as a power output end, the power end of the power supply circuit is connected in parallel, the drain electrode of the seventh MOS tube is connected with the second end of the first inductor, the source electrode of the eighth MOS tube is connected with one end of the ninth resistor in a common mode to be connected with the control signal input end, the other end of the ninth resistor is connected with the grid electrode of the eighth MOS tube in a common mode to be connected with the second end of the first inductor, and the drain electrode of the eighth MOS tube is grounded.

9. A heating device for adjusting a current direction with a periodic voltage, comprising a heating circuit for adjusting a current direction with a periodic voltage according to any one of claims 1 to 8.

10. An electronic atomizer, characterized in that the electronic atomizer comprises a power supply component and an atomization component, wherein a heating circuit for adjusting the current direction by periodic voltage according to any one of claims 1 to 8 is arranged in the atomization component, and the power supply component and the atomization component are connected in a pluggable manner.