CN117397862A - Electronic atomizing device and control method thereof - Google Patents

Abstract

The embodiment of the invention discloses an electronic atomization device and a control method of the electronic atomization device, comprising an atomizer and a power supply mechanism for providing electric energy for the atomizer, wherein the atomizer comprises: a liquid storage cavity and an atomization sheet; a suction nozzle having an air flow outlet for the aerosol to escape the atomizer; the conductive electrode comprises a first conductive electrode and a second conductive electrode, the first conductive electrode and the second conductive electrode are electrically connected with the atomizing sheet, and the first conductive electrode is contacted with the liquid matrix; at least one conductive element, a portion of which is exposed to the reservoir, the conductive element being capable of communicating with the first conductive electrode through the liquid matrix; the power supply mechanism includes: a battery cell; and the controller is configured to generate PWM signals output to the first conductive electrode and the second conductive electrode, and control the atomizing sheet to vibrate through the PWM signals, wherein the PWM signals received by the first conductive electrode are opposite to the PWM signals received by the second conductive electrode. By the mode, the atomization piece can be prevented from being exposed out of the liquid surface to generate dry combustion.

Description

Electronic atomizing device and control method thereof

[ field of technology ]

The embodiment of the invention relates to the technical field of atomization, in particular to an electronic atomization device and a control method of the electronic atomization device.

[ background Art ]

The existing electronic atomization device comprises an ultrasonic atomization mode, the ultrasonic atomizer is manufactured by utilizing the ultrasonic vibration atomization technology principle, specifically, electronic high-frequency oscillation (the oscillation frequency is 1.7MHz or 2.4MHz, and the electronic oscillation is beyond the hearing range of a person, and is harmless to human bodies and animals) is utilized, molecular bonds between liquid water or oil molecules are scattered through high-frequency resonance of an atomization sheet to generate natural elegant water mist or oil mist, and compared with a heating atomization mode, the energy is saved by 90%.

In the ultrasonic atomizer, the atomizing sheet in the atomizer is generally directly immersed in the atomized liquid, but when the liquid level of the liquid matrix in the atomizer is too low, the atomizing sheet is easily exposed out of the liquid level, and dry burning of the atomizing sheet is easily caused.

[ invention ]

Aiming at the technical problems, some embodiments of the present application provide an electronic atomization device and a control method of the electronic atomization device, so as to solve the technical problems that an atomization sheet is easy to expose the liquid surface when the liquid surface is too low so as to generate dry combustion.

An electronic atomizing device comprising an atomizer and a power supply mechanism for providing electrical energy to the atomizer, the atomizer comprising:

A liquid storage chamber for storing a liquid matrix capable of conducting electricity;

an atomizing sheet for ultrasonically atomizing the liquid matrix to produce an aerosol;

a mouthpiece having an airflow outlet for the aerosol to escape the atomizer;

the conductive electrode comprises a first conductive electrode and a second conductive electrode, the first conductive electrode and the second conductive electrode are electrically connected with the atomizing sheet, and the first conductive electrode is in contact with the liquid matrix;

at least one conductive element, a portion of which is exposed to the reservoir, the conductive element being capable of communicating with the first conductive electrode through the liquid matrix;

the power supply mechanism includes:

a battery cell;

the controller is respectively and electrically connected with the electric core and the conductive element, and is used for acquiring the electric signal of the conductive element and controlling the electric core to provide electric energy for the atomizing sheet according to the electric signal; the controller is configured to generate PWM signals output to the first conductive electrode and the second conductive electrode, and control the atomizing sheet to vibrate through the PWM signals, wherein the PWM signals received by the first conductive electrode are opposite to the PWM signals received by the second conductive electrode.

A nebulizer, the nebulizer comprising:

a liquid storage chamber for storing a liquid matrix capable of conducting electricity;

an atomizing sheet for ultrasonically atomizing the liquid matrix to produce an aerosol;

a mouthpiece having an airflow outlet for the aerosol to escape the atomizer;

the conductive electrode comprises a first conductive electrode and a second conductive electrode, the first conductive electrode and the second conductive electrode are electrically connected with the atomizing sheet, and the first conductive electrode is in contact with the liquid matrix;

at least one conductive element, a portion of which is exposed to the reservoir, the conductive element being capable of communicating with the first conductive electrode through the liquid matrix.

A control method of an electronic atomizing device, the method being applied to the electronic atomizing device described above, comprising:

determining a conductive state of the first conductive electrode and the conductive element;

and adjusting the power provided by the battery cell to the atomizing sheet according to the conducting state.

According to the electronic atomization device, the conductive element which can be conducted with the first conductive electrode of the atomization sheet is arranged on the atomizer, a part of the conductive element is exposed in the liquid storage cavity, when the liquid level of the liquid matrix in the atomizer is higher than the exposed part of the conductive element in the liquid storage cavity, the conductive element is conducted with the first conductive electrode through the conductive liquid matrix, an electric signal on the first conductive electrode is transmitted to the conductive element, and then the conductive element is transmitted to the controller of the electronic atomization device, after the controller receives the electric signal transmitted by the conductive element, the liquid level of the current liquid matrix is judged to be proper, the controller controls the electric core to provide electric energy for the atomization sheet, and the atomization sheet can ultrasonically atomize the liquid matrix to generate aerosol.

When the liquid level of the liquid matrix in the atomizer is lower than the exposed part of the conductive element in the liquid storage cavity, the conductive element cannot be conducted with the first conductive electrode through the conductive liquid matrix, an electric signal on the first conductive electrode cannot be transmitted to the conductive element, the controller does not receive the electric signal on the conductive element, the controller judges that the liquid level of the current liquid matrix is too low, and the controller controls to cut off an electric connection path between the electric core and the atomizing sheet.

By the mode, the fact that the liquid level of the current liquid matrix is too low can be detected before the atomizing sheet is exposed out of the liquid level of the liquid matrix, so that an electric connection path between the electric core and the atomizing sheet is cut off, and dry burning of the atomizing sheet is effectively prevented.

[ description of the drawings ]

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.

Fig. 1 is a schematic perspective view of an electronic atomization device in one direction according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the electronic atomizing device of FIG. 1 in one direction;

FIG. 3 is an exploded view of the atomizer of the electronic atomizing device of FIG. 1 at one viewing angle;

FIG. 4 is a schematic perspective view of the ultrasonic atomizing assembly of the atomizer of FIG. 3 in one orientation;

FIG. 5 is an exploded view of the ultrasonic atomizing assembly of FIG. 4 at one viewing angle;

FIG. 6 is a perspective view of the base of the atomizer of FIG. 3 in one orientation;

fig. 7 is a schematic perspective view of the conductive element of the atomizer of fig. 3 in one direction;

FIG. 8 is a perspective view of the seal housing of the atomizer of FIG. 3 in one orientation;

FIG. 9 is a schematic cross-sectional view of the electronic atomizing device of FIG. 1 in another direction;

FIG. 10 is a schematic perspective view of the smoke tube of the atomizer of FIG. 3 in one direction;

fig. 11 is a schematic circuit diagram of the electronic atomizing device in fig. 1.

[ detailed description ] of the invention

In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to/affixed to "another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the invention described below can be combined with one another as long as they do not conflict with one another.

In the embodiment of the present invention, the "mounting" includes welding, screwing, clamping, adhering, etc. to fix or limit a certain element or device to a specific position or place, where the element or device may be fixed at the specific position or place or may be movable within a limited range, and the element or device may be removable or not removable after being fixed at the specific position or place, which is not limited in the embodiment of the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Referring to fig. 1 and 2, fig. 1 and 2 show a schematic perspective view and a schematic cross-sectional view of an electronic atomization device 100 according to an embodiment of the invention. The electronic atomizing device 100 includes an atomizer 10 and a power supply mechanism 20, wherein the power supply mechanism 20 is used for supplying electric energy to the atomizer 10, and the atomizer 10 can atomize a liquid matrix stored in the electronic atomizer after obtaining the electric energy and generate aerosol. The atomizer 10 and the power supply mechanism 20 can be detachably connected, or can be non-detachably connected, when the detachable connection is adopted, the atomizer 10 can be separated from the power supply mechanism 20, and after the liquid matrix in the atomizer 10 is consumed, the atomizer 10 filled with the liquid matrix can be replaced again, so that the power supply mechanism 20 of the electronic atomization device 100 can be reused in a detachable connection mode, and different tastes can be obtained by replacing the atomizer 10. When the atomizer 10 and the power supply mechanism 20 are connected in a non-detachable manner, the atomizer 10 and the power supply mechanism 20 are integrated, the atomizer 10 and the power supply mechanism 20 cannot be reused, and the whole electronic atomization device 100 needs to be discarded after the liquid matrix of the atomizer 10 is consumed.

With continued reference to fig. 3, fig. 3 shows an exploded view of the atomizer 10 from one perspective, as well as with reference to fig. 2. The atomizer 10 comprises a housing 11 of the atomizer 10, a base 12, an ultrasonic atomizing assembly 13, a seal seat 14, a suction nozzle 15 and a smoke tube 16. The housing 11 has axially opposite proximal and distal ends 111, 112, the proximal and distal ends 111, 112 being disposed so as to be open, the suction nozzle 15 being mounted to the housing 11 through the opening of the proximal end 111, and the base 12 being mounted to the housing 11 through the opening of the distal end 112, thereby forming the liquid reservoir 17 between the suction nozzle 15 and the base 12. The sealing seat 14 is sleeved on the base 12 and is in interference fit with the inner wall of the shell 11, so that the liquid matrix in the liquid storage cavity 17 is prevented from leaking through an assembly gap between the base 12 and the inner wall of the shell 11. The ultrasonic atomization assembly 13 is disposed in the housing 11, and is used for ultrasonic atomization of the liquid matrix in the liquid storage cavity 17 to generate aerosol, and the smoke tube 16 is used for conducting the generated aerosol to the suction nozzle 15, so that the aerosol is discharged from the suction nozzle 15 to the electronic atomization device 100.

With continued reference to fig. 4 and 5, and with reference to fig. 2 in combination, fig. 4 and 5 show a schematic perspective view of the ultrasonic atomizing assembly 13 in one direction and an exploded schematic view from one view angle, respectively. The ultrasonic atomizing assembly 13 includes an atomizing plate 131, an upper end cap 132, a lower end cap 133, a seal 134, a conductive spring 135, and a resistive plate 136. The atomizing sheet 131 is generally constructed of a piezoelectric ceramic having opposite upper and lower surfaces provided with positive and negative electrodes of the atomizing sheet 131, respectively. The upper end cap 132 and the lower end cap 133 are axially abutted against each other to form a receiving chamber, the atomizing sheet 131, the sealing member 134, the conductive spring 135 and the resistive plate 136 are all located in the receiving chamber, and the resistive plate 136 is connected in parallel between the upper surface electrode and the lower surface electrode of the atomizing sheet 131.

The upper end cover 132 is partly buckled and with the upper surface butt of atomizing piece 131 to with atomizing piece 131 centre gripping between insulating silica gel seat 134 and upper end cover 132, upper end cover 132 and lower end cover 133 all adopt the electrically conductive metal material to make, upper end cover 132 buckled the part and be connected with the electrode of atomizing piece 131 upper surface simultaneously, thereby make the casing part of ultrasonic atomizing subassembly 13 form the first conductive electrode of atomizing piece 131, conductive spring 135 is connected with the electrode electricity of atomizing piece 131 lower surface, thereby make conductive spring 135 form the second conductive electrode of atomizing piece 131. The atomizing sheet 131 is immersed directly in the liquid reservoir 17, and since the housing portion of the ultrasonic atomizing assembly 13 serves as the first conductive electrode of the atomizing sheet 131, the first conductive electrode liquid is in direct contact with the liquid matrix in the liquid reservoir.

The sealing member 134 is made of flexible material, such as silica gel or rubber, the sealing member 134 is provided with a first through hole 1341 penetrating through the body axially, the second conductive electrode 135 penetrates through the first through hole 1341 to be connected with the lower surface electrode of the atomizing sheet 131, the sealing member 134 is respectively in interference fit with the inner wall of the accommodating chamber and the lower surface of the atomizing sheet 131, so as to prevent the liquid matrix from flowing into the accommodating chamber formed by the upper end cover 132 and the lower end cover 133, and further prevent the liquid matrix from flowing to the second conductive electrode, so as to ensure that the first conductive electrode and the second conductive electrode 135 are isolated from each other.

With continued reference to fig. 6, fig. 6 shows a perspective view of the base 12 in one orientation. The base 12 includes a bottom wall 121 and first and second side walls 122 and 123 extending axially from the bottom wall 121 toward the suction nozzle 15, the first and second side walls 122 and 123 defining an annular gap 124. The second side wall 123 and the bottom wall 121 define a mounting cavity 1231 for mounting the ultrasonic atomizing assembly 13, the sealing seat 14 is sleeved on the base 12, and at least a part of the sealing seat is elastically abutted with the upper end cover of the atomizing sheet 131. From the bottom 121, there are a first extension portion 125 and a second extension portion 126 extending axially along the first side wall 122, where the first extension portion 125 is provided with a second through hole 1251 extending axially through the body of the first extension portion, the second extension portion 126 is provided with a third through hole 1261 extending axially through the body of the second extension portion, a conductive element 127 is inserted into the second through hole 1251, the conductive element 127 extends through the second through hole 1251, a first air inlet pipe 128 is inserted into the third through hole 1261, and a second air inlet pipe 129 is sleeved on the first air inlet pipe 128.

With continued reference to fig. 7, fig. 7 shows a schematic perspective view of the conductive element 127 in one direction. The conductive element 127 is integrally formed of a conductive metallic material and has a dome-shaped upper end 1271 and an opposite lower end 1272, the cross-sectional area of the lower end 1272 being greater than the cross-sectional area of the upper end 1271. When the conductive element 1271 is inserted into the second through hole 1251, the spherical upper end 1271 protrudes from the second through hole 1251 and is exposed in the liquid storage chamber 17. While the lower end 1272 also protrudes from the second through hole 1251, the cross-sectional area of the lower end 1272 is larger than the cross-sectional area of the second through hole 1251, so that the lower end 1272 is inverted at the orifice of the second through hole 1251.

With continued reference to fig. 8, fig. 8 shows a schematic perspective view of the seal housing 14 in one orientation. The end face 141 of the sealing seat 14 is configured as an inwardly tapering chamfer, that is to say the base 14 has a flared open end, the opening of which faces the suction nozzle 15. And the end face 141 is formed with a fourth through hole 1411 in a retracted manner, and a hole edge of the fourth through hole 1411 is elastically abutted against the upper end cover of the atomizing sheet 131, so that the atomizing sheet 131 can be exposed through the fourth through hole 1411. In turn, such that a portion of the liquid matrix of the liquid reservoir 17 is stored in the seal 14, the liquid reservoir 17 is divided into a first portion 171 and a second portion 172, the cross-sectional area of the first portion 171 is larger than the cross-sectional area of the second portion 172, and the atomizing sheet 131 is immersed in the liquid matrix of the second portion 172.

Illustratively, dividing the reservoir 17 into the first portion 171 and the second portion 172 allows the remaining liquid matrix to flow back into the second portion 172 through the inclined surface of the open end when the liquid matrix in the atomizer 10 is consumed too much, while maintaining a certain liquid level when the remaining liquid matrix flows back into the second portion 172 due to the smaller cross-sectional area of the second portion 172 than the first portion 171, while maintaining a certain liquid level when the atomizing sheet 131 is ultrasonically atomizing the liquid matrix, which would affect the atomizing effect.

The sealing seat 14 is provided with a first avoiding hole 142 for exposing the upper end 1271 of the conductive element 127 and a second avoiding hole 143 for passing through the first air inlet pipe 128. The upper end 1271 of the conductive element 127 is exposed to the second portion 172 of the reservoir 17 through the first relief aperture 142, and since the first conductive electrode of the ultrasonic atomizing assembly 13 is also in contact with the liquid matrix, when the liquid matrix is a conductive liquid, current flows through the first conductive electrode after the electronic atomizing device 100 is energized, and an electrical signal on the first conductive electrode is transmitted to the conductive element 127 through the conductive liquid matrix, which the conductive element 127 can receive.

Further, the power supply mechanism 20 generally includes a battery 21, a connection terminal 22, and a controller (not shown), where the battery 21 and the connection terminal 22 are electrically connected to the controller, and the conductive element 127 is also electrically connected to the controller. Therefore, based on the above description, when the electronic atomizing device 100 is powered on, a current flows through the first conductive electrode in the atomizer 10, and at this time, if the liquid level is higher than the exposed portion of the conductive element 127, the electrical signal of the first conductive electrode can be transmitted to the conductive element 127 through the conductive liquid matrix, the conductive element 127 sends the received electrical signal to the controller, the controller can determine that the current liquid level is suitable, that is, the controller controls the electric core 21 to provide the electric power to the atomizing sheet 131 through the connection terminal 22, and the atomizing sheet 131 can perform ultrasonic atomization on the liquid matrix to generate aerosol.

If the liquid level is lower than the exposed portion of the conductive element 127, at this time, the electrical signal of the first conductive electrode cannot be transmitted to the exposed portion 1271 of the conductive element 127, the conductive element 127 cannot receive the electrical signal, and the controller cannot receive the electrical signal sent by the conductive element 127, at this time, the controller can determine that the liquid level is too low, the atomizing sheet 131 is easy to dry-burn, and the controller controls to cut off the electrical connection path between the electrical core 21 and the atomizing sheet 131.

In addition, since the upper end 1271 of the conductive member 127 is exposed to the second portion 172 of the liquid storage chamber 17, and the atomizing sheet 131 is also exposed to the second portion 172, the liquid medium in the first portion 171 can be sufficiently utilized.

Further, with continued reference to fig. 7, the conductive element 127 is inserted into the portion of the second through hole 1251, and the outer surface of the conductive element 127 is radially provided with a plurality of protruding ribs 1273, and the protruding ribs 1273 are in interference fit with the inner wall of the second through hole 1251, so as to seal the assembly gap between the conductive element 127 and the second through hole 1251, and prevent the liquid matrix from leaking through the assembly gap between the conductive element 127 and the second through hole 1251. Of course, in the embodiment of the present invention, only one protruding rib 1273 may be provided on the conductive element 127, so long as the assembly gap between the conductive element 127 and the second through hole 1251 is sealed.

In addition, the conductive element 127 is made of conductive metal that is easy to magnetize, and a magnetic member capable of generating a magnetic field is provided in the power supply mechanism 20, and since the lower end 1272 of the conductive element 127 protrudes out of the second through hole 1251 and is exposed outside the atomizer 10, the atomizer 10 and the power supply mechanism 20 can be magnetically connected through the conductive element 127, thereby realizing detachable connection. The conductive element 127 at this time not only realizes the function of magnetic attraction connection, but also realizes the function of liquid level detection as described above. It is to be understood that, in other embodiments of the present invention, the conductive element 127 may be made of a metal material capable of generating a magnetic field and conducting electricity, for example, any one of a neodymium-iron-boron strong magnet, a samarium-cobalt magnet, an alnico magnet, or an iron-chromium-cobalt magnet, and a metal that is easy to be magnetized is disposed in the power supply mechanism 20, so that the conductive element 127 can achieve both a magnetic connection and a liquid level detection function.

In this embodiment, the conductive elements 127 comprise two, the two conductive elements 127 are symmetrically arranged about the atomizing plate 131 along the axis of the atomizer 10, and the heights of the two conductive elements 127 exposed to the liquid storage chamber 17 are uniform, as shown in fig. 9. When the user uses the electronic atomizing device 100 to perform suction in an inclined state, the liquid matrix in the atomizer 10 is concentrated to one side, and the liquid level of the liquid matrix on the other side is correspondingly reduced, at this time, the liquid level on the side is lower than the exposed part of the corresponding conductive element 127, at this time, the conductive element 127 on the side cannot receive the electric signal sent by the first conductive electrode, the controller determines that the liquid level on the side is too low, and the controller controls to cut off the electric connection path between the electric core 21 and the atomizing sheet 131, so that the power supply mechanism 20 is prevented from providing electric energy to the atomizing sheet 131. Therefore, by arranging the two conductive elements 127 symmetrically, when the user draws obliquely, it is possible to effectively detect that the liquid level is too low before the atomizing sheet 131 is exposed to the liquid level, and thus effectively prevent the atomizing sheet 131 from being exposed to the liquid level in an inclined state and dry combustion. It will be readily appreciated that in other embodiments of the present invention, only one conductive element 127 may be provided in the atomizer 10, such as when a user is holding the electronic atomizing apparatus 100 upright for aspiration, and only one conductive element 127 is required for detection.

Further, when the two conductive elements 127 are symmetrically arranged along the axis of the atomizer 10 with respect to the atomizing sheet 131, the suction nozzle 15 may be configured in a flat shape, and the flat suction nozzle may allow the user to perform suction in a fixed manner, and the long axis direction of the suction nozzle 15, that is, the direction in which the flat shape of the suction nozzle 15 extends is perpendicular to the central connecting line of the two conductive elements 127, see the long axis direction of the suction nozzle 15 shown as R1 in fig. 9. Further, when the user sucks in the inclined state, one of the two conductive elements 127 is positioned above the atomizing plate 131 and the other conductive element is positioned below the atomizing plate 131 relative to the atomizing plate 131, so that the situation that the liquid level is too low before the atomizing plate 131 exposes out of the liquid level when the user sucks in the inclined state can be ensured, and dry burning of the atomizing plate 131 due to the exposure of the liquid level when the user sucks in the inclined state can be effectively prevented.

It should be noted that, in other embodiments of the present invention, the suction nozzle 15 may be designed to be circular, and in this case, since the suction nozzle 15 is circular, the user may draw through the suction nozzle 15 in any manner, and the tilting direction of the electronic atomizing device 100 is unpredictable. In order to prevent the atomizing sheet 131 from being exposed to the liquid surface and thus dry burning by the user's inclined suction in this case as well, at least 4 conductive members 127 may be provided in the atomizer 10, and at least 4 conductive members 127 may be uniformly arranged around the atomizing sheet 131, for example, when 4 conductive members 127 are provided, any two conductive members 127 may be 90 degrees apart. When the user draws in any oblique direction, at least one of the conductive elements 127 is exposed to the fluid before the atomizing sheet 131 is exposed to the fluid, and the controller controls the electrical core 21 to supply electrical power to the atomizing sheet 131 only when the controller detects electrical signals from all of the conductive elements 127. Therefore, when the upper end 1271 of at least one conductive element 127 is exposed to the liquid surface, the first conductive electrode cannot transmit an electrical signal to the conductive element 127 through the conductive liquid matrix, and the controller cannot receive signals from all conductive elements 127, and the controller cuts off the electrical connection path between the electric core 21 and the atomizing sheet 131, so that the atomizing sheet 131 is prevented from being exposed to the liquid surface in a certain oblique direction to generate dry burning.

Further, in other embodiments of the present invention, a plurality of conductive elements 127 are disposed in the atomizer 10, and portions of the plurality of conductive elements 127 exposed in the liquid storage chamber 17 have different exposure heights, that is, the portions of the plurality of conductive elements 127 exposed in the liquid storage chamber 17 have different heights from the atomizing sheet 131. The controller of the power supply mechanism 20 can determine the current liquid level of the liquid matrix by identifying the electric signals sent by each conductive element 127, further determine the current residual capacity of the liquid, and then set different atomization powers according to the different liquid capacities, thereby improving the efficiency and achieving the optimal atomization effect.

It should be further noted that, if the exposed position is too high, the liquid level of the liquid matrix will reach the upper end 1271 of the conductive element 127 too early as the liquid matrix is consumed, and if the liquid matrix is further consumed, the upper end 1271 of the conductive element 127 will expose the liquid level, so that the controller cuts off the electrical connection between the electric core 21 and the atomizing plate 131, and some liquid matrix in the atomizer 10 cannot be used, and the utilization rate of the liquid matrix in the atomizer 10 is low. And if the exposed position of the upper end 1271 of the conductive element 127 is too low, it may result in an insufficiently sensitive detection. Therefore, it is preferable that the vertical distance between the upper end 1271 of the conductive member 127 and the atomizing sheet 131 is not more than one third of the vertical distance between the liquid surface of the liquid substrate and the atomizing sheet 131, and the height range is suitable.

With continued reference to fig. 10, fig. 10 shows a schematic perspective view of the smoke tube 16 in one direction. The smoke pipe 16 includes a first cylinder 161 and a second cylinder 162 disposed opposite to each other in the axial direction, the first cylinder 161 and the second cylinder 162 are each disposed in a hollow manner, and the first cylinder 161 and the second cylinder 162 are separated by a separation portion 163. The first cylinder 161 is partially inserted into the suction nozzle 15, the first cylinder 161 has an open end, the open end extends into the suction nozzle 15, and the sidewall of the first cylinder 161 is provided with an air passing hole 1611 communicating with the inside of the first cylinder 161. The second cylinder 162 also has an opening end 1621, the second air inlet pipe 129 extends to the inside of the second cylinder 162 through the opening end 1621, and most of the aerosol generated by the ultrasonic atomization of the atomization sheet 131 is released to the inside of the second cylinder 162, and the inside of the second cylinder 162 can be used as the atomization chamber 164 of the electronic atomization device 100.

The power supply mechanism 20 is provided with an air intake hole (not shown) through which external air enters the electronic atomizing device 100, then flows to the third through hole 1261 of the atomizer 10, then enters the first air intake pipe 128 through the third through hole 1261, then enters the second air intake pipe 129, and enters the atomizing chamber through the second air intake pipe 129 to form an air intake passage. Then, the aerosol is carried, flows to the air passing hole 1611 of the first cylinder 161 through the gap between the smoke tube 16 and the shell 11, then enters the suction nozzle 15 through the opening end of the first cylinder 161, and finally is discharged by the suction nozzle 15 for being sucked by a user.

With continued reference to fig. 11, fig. 11 shows a schematic circuit diagram of the electronic atomizing device 100. The power supply mechanism 20 includes a power supply unit (cell) 21; a MCU (microprocessor) as a controller for controlling the power supply unit 21 to supply power to the atomizing sheet 131, the MCU being electrically connected to the power supply unit 21; and a booster circuit connected to the power supply unit 21, and a high-frequency oscillating circuit electrically connected to the MCU. Wherein, the MCU is configured to generate a high-frequency PWM oscillation signal, and the MCU can control the atomizing sheet 131 to vibrate through the PWM signal; the high-frequency oscillating circuit comprises an amplifying circuit for amplifying the PWM signal and a resonance circuit for resonating with the atomizing sheet 131; the booster circuit is for boosting the voltage of the power supply unit 21 to a voltage required for the high-frequency oscillation circuit. The high-frequency oscillation circuit and the first conductive electrode and the second conductive electrode of the atomizing sheet 131 provide a high-frequency oscillation signal for the atomizing sheet 131, and the first conductive electrode is in direct contact with the liquid matrix, so that the high-frequency oscillation signal can be transmitted to the conductive element 127 through the liquid matrix, and the conductive element 127 can receive the high-frequency oscillation signal. The conductive element 127 is electrically connected with the MCU, so that after the conductive element 127 receives the high-frequency oscillation signal, the signal can be sent to the MCU, and the MCU can determine that the first conductive electrode of the atomizing sheet 131 is conducted with the conductive element 127 through the liquid matrix according to the oscillation signal. If the MCU does not receive the oscillation signal, it is determined that the first conductive electrode of the atomizing sheet 131 is not conducted with the conductive element 127.

The high-frequency PWM oscillation signal generated by the MCU is subjected to resonance with the atomizing sheet 131 through the high-frequency oscillation circuit, the atomizing sheet 131 can vibrate under the action of resonance, the atomizing sheet 131 vibrates the liquid matrix in a high-frequency vibration mode (the sound wave generated by the high-frequency vibration exceeds the hearing range of a person and is harmless to the human body), so that smoke is generated, and ultrasonic atomization is realized.

The MCU is configured to output 2 paths of PWM signals, the 2 paths of PWM signals are combined to form a complete PWM signal, one path of PWM signal is sent to the first conductive electrode of the atomizing sheet 131 in one half period, the other path of PWM signal is sent to the second conductive electrode of the atomizing sheet 131 in the other half period, and the 2 paths of PWM signals have opposite directions, so that the controller MCU can control the amplitude of the atomizing sheet 131 through the PWM signals, and further can realize half-wave detection on the conductive element 127, namely, detection is carried out when only one path of PWM signal is sent to the atomizing sheet 131, and the conductive element 127 can accurately detect the liquid level of the liquid matrix.

Specifically, when the MCU controls only one path of PWM signals to be sent to the atomizing sheet 131, the atomizing sheet 131 only vibrates in one direction, the amplitude is smaller, the liquid level fluctuation of the liquid matrix is smaller, and the liquid level is more stable; and when the MCU controls 2 paths of PWM signals to be sent to the atomizing sheet 131, the atomizing sheet 131 can vibrate in two directions, the amplitude is larger, and the liquid level fluctuation of the liquid matrix is larger. Therefore, in order to facilitate accurate detection of the liquid level of the conductive element 127, after the atomizer 100 is started, the MCU may control one of the PWM signals to be sent to the first conductive electrode of the atomizing plate 131, and simultaneously control to close the other PWM signal output to the second conductive electrode of the atomizing plate 131, so that the atomizing plate 131 vibrates only in one direction, the amplitude of the vibration in one direction is smaller, the liquid level of the liquid matrix fluctuates little when the atomizing plate 131 vibrates in one direction, the liquid level is also relatively stable, the conductive element 127 is convenient to accurately detect the current liquid level, after the MCU detects the liquid level, the MCU may control the other PWM signal to be sent to the second conductive electrode of the atomizing plate 131, so that the atomizing plate 131 vibrates bidirectionally, the amplitude of the atomizing plate 131 is improved, and ultrasonic atomization of the liquid matrix is started to generate smoke.

Further, a signal attenuation circuit is further provided in the power supply mechanism 20, and the conductive element 127 is electrically connected to the MCU through the signal attenuation circuit. The I/O port of the MCU generally can only accept electrical signals with lower voltage, while the voltage of the oscillation signal is higher, so that the voltage of the oscillation signal needs to be attenuated to be within the acceptable range of the MCU by the signal attenuation circuit, and if the oscillation signal is directly input to the MCU, the MCU is easily damaged.

The embodiment of the present invention also provides a control method of an electronic atomization device, where the method is applied to the electronic atomization device 100 in the above embodiment, and includes:

step S100: a conductive state of the first conductive electrode and the conductive element is determined.

After the electronic atomizing device 100 is started, the controller starts to detect whether the first conductive electrode is conductive to the conductive element 127. Specifically, as described in the above embodiment, when the liquid level of the liquid matrix is higher than the upper end 1271 of the conductive element 127, the first conductive electrode is conducted with the conductive element 127 through the conductive liquid matrix, the conductive element 127 can receive the electrical signal on the first conductive electrode, the conductive element 127 can send the electrical signal to the controller, and after receiving the electrical signal sent by the conductive element 127, the controller can determine that the first conductive electrode is conducted with the conductive element 127, and then the liquid level of the liquid matrix is suitable.

When the liquid level of the liquid matrix is lower than the upper end 1271 of the conductive element 127, the first conductive electrode cannot be communicated with the conductive element 127 through the conductive liquid matrix, the conductive element 127 cannot receive the electric signal on the first conductive electrode, the controller cannot receive the electric signal sent by the conductive element 127, and at this time, the controller can judge that the first conductive electrode is not conducted with the conductive element 127, and the liquid level of the liquid matrix is too low.

Step S200: and adjusting the power provided by the battery cell to the atomizing sheet according to the conducting state. .

According to the description of step S100, when the first conductive electrode is electrically connected to the conductive element 127, the controller determines that the liquid level is appropriate, the atomizing sheet 131 will not burn dry, and the controller controls the battery 21 of the power supply mechanism 20 to supply power to the atomizing sheet 131, and the atomizing sheet 131 starts to perform ultrasonic atomization on the liquid matrix to generate aerosol after obtaining power. When the first conductive electrode is not conducted with the conductive element 127, the controller determines that the liquid level is too low, and the atomizing sheet 131 is atomized at the liquid level to generate dry combustion easily, so that the controller controls to cut off the electrical connection between the electric core 21 of the power supply mechanism 20 and the atomizing sheet 131, and prevents the electric core 21 from providing electrical energy to the atomizing sheet 131.

Further, in some embodiments, the conductive elements 127 may include first and second conductive elements symmetrically distributed about the atomizing sheet 131 along the axis of the atomizer 10, the control method further comprising:

and determining the conduction states of the first conductive electrode, the first conductive element and the second conductive element respectively.

If the first conductive electrode is conducted with the first conductive element and the second conductive element, the electric core is controlled to provide power for the atomizing sheet;

and if the first conductive electrode is conducted with any one of the first conductive element and the second conductive element or is not conducted with the first conductive element and the second conductive element, cutting off an electric connection path between the electric core and the atomizing sheet.

Specifically, as described in the above embodiment, when the user sucks in the electronic atomizing apparatus 100 in the inclined state, the liquid medium in the liquid storage chamber 17 is concentrated to one side, so that the liquid level of the liquid medium on one side is too high, and the liquid level of the liquid medium on the other side is too low, and the atomizing sheet 131 is easily exposed to the liquid level to generate dry burning on the side with the too low liquid level.

If the controller detects that the first conductive electrode is conductive to the first conductive element and the second conductive element, it means that the liquid levels at two sides of the atomizing sheet 131 are at a proper height even in the inclined state, and dry burning of the atomizing sheet 131 is not easy to occur, so the controller controls the electric core 21 to provide power to the atomizing sheet 131. When the controller only receives the electric signal of the first conductive element or the second conductive element, it indicates that the electronic atomizing device 100 is in an inclined state, and the liquid level at one side of the atomizing sheet 131 is too low, and dry burning of the atomizing sheet 131 is easy to occur, so that the controller controls to switch off the electrical connection between the electric core 21 and the atomizing sheet 131. Or neither the first conductive element nor the second conductive element, indicating that the liquid matrix level in the atomizer 10 is too low in normal use, the controller also controls the switching of the electrical connection between the electrical core 21 and the atomizer plate 131.

Further, in some embodiments, the conductive element 127 includes a first conductive element and a second conductive element, and a portion of the first conductive element and a portion of the second conductive element are respectively exposed at different heights in the liquid storage chamber 17, where the exposed position of the first conductive element is higher than the exposed position of the second conductive element, and the control method includes:

Determining the conduction state of the first conductive electrode and the first conductive element and the second conductive element respectively;

if the first conductive electrode is conducted with the first conductive element and the second conductive element, controlling the electric core to provide first power for the atomizing sheet;

and if the first conductive electrode is conducted with the second conductive element and is not conducted with the first conductive element, controlling the electric core to provide a second power different from the first power for the atomizing sheet.

Specifically, since the exposed position of the first conductive element in the liquid storage chamber 17 is higher than the exposed position of the second conductive element in the liquid storage chamber 17, the liquid level detected by the first conductive element is higher than the liquid level detected by the second conductive element. Therefore, after the electronic atomizing device 100 is started, the controller detects whether the first conductive electrode is respectively connected with the first conductive element and the second conductive element, and if the first conductive electrode is connected with both the first conductive element and the second conductive element, the liquid level is higher than the exposed portion of the first conductive element, and the exposed portion of the first conductive element is higher than the exposed portion of the second conductive element, so that the liquid level is also higher than the exposed portion of the second conductive element. At this time, the controller may control the electric core 21 to provide the first power to the atomizing sheet 131, so that the atomizing sheet 131 works.

When the controller does not detect the electric signal of the first conductive element, that is, the first conductive element and the first conductive electrode are not conducted at the moment, the current liquid level is lower than the exposed part of the first conductive element in the liquid storage cavity 17. But when the controller detects an electrical signal on the second conductive element, it indicates that the liquid level is lower than the exposed portion of the first conductive element, but higher than the exposed portion of the second conductive element, and the controller controls the electric core to supply a second power different from the first power to the atomizing sheet 131. Of course, if neither the electrical signals of the first conductive element nor the second conductive element are detected, indicating that the current fluid level is below the exposed portion of the second conductive element, the controller may control the electrical core to cease providing power to the atomizing pad 131.

Further, in some alternative embodiments, the first power is greater than the second power, so that the controller can set different atomization powers according to the current height of the liquid level, that is, the difference of the liquid volume, when the liquid level is higher, higher electric power can be output to the atomization plate 131, and when the liquid level is lower, lower electric power can be output to the atomization plate 131, so as to achieve the optimal atomization effect. It will be readily appreciated that in other embodiments of the invention, the conductive elements 127 may comprise three, four or more, each conductive element 127 having a respective height exposed to the reservoir 17, and the respective heights being non-uniform, the controller may determine the current fluid level based on the electrical signal returned by each conductive element 127, and further output corresponding electrical power based on the current fluid level.

Further, the electronic atomizing device 100 may further include a prompt module, such as any one of an indicator lamp (not shown), a motor (not shown), or a buzzer (not shown), and after the controller cuts off the electrical connection between the electric core 21 and the atomizing sheet 131, the control method may further include:

the control prompt module sends out prompt information.

Specifically, if the prompting module is an indicator lamp, the indicator lamp can be controlled to emit different light colors from those of the normal working; if the prompting module is a motor, the motor can be controlled to vibrate to remind a user; if the prompting module is a buzzer, the buzzer can be controlled to generate prompting sound.

Further, in some embodiments, to enable the conductive element 127 to accurately detect the liquid level of the liquid matrix, to prevent the liquid matrix from fluctuating too much to affect the detection accuracy of the conductive element 127 during ultrasonic atomization, before determining the conductive state of the first conductive electrode and the conductive element, the method may further include:

and turning on the PWM signal output to the first conductive electrode, and turning off the PWM signal output to the second conductive electrode.

Specifically, since the directions of the PWM signal received by the first conductive electrode and the PWM signal received by the second conductive electrode are opposite, after the atomizer 100 is started, the MCU can control one path of PWM signal to be sent to the first conductive electrode of the atomizing sheet 131, and simultaneously control to close the other path of PWM signal output to the second conductive electrode of the atomizing sheet 131, so that the atomizing sheet 131 vibrates only in one direction, the amplitude of the vibration in one direction is smaller, the fluctuation of the liquid level of the liquid matrix is less when the atomizing sheet 131 vibrates in one direction, the liquid level is relatively stable, and the conductive element 127 can accurately detect the height of the current liquid level.

After the MCU detects the liquid level of the liquid matrix, the method may further comprise:

and starting the PWM signal output to the second conductive electrode.

After the MCU detects the height of the liquid surface, the MCU can control the other path of PWM signal to be sent to the second conductive electrode of the atomizing sheet 131, so that the atomizing sheet 131 vibrates bidirectionally, the amplitude of the atomizing sheet 131 is improved, and the liquid matrix begins to generate a large amount of smoke under the large vibration of the atomizing sheet 131.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the invention 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 technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (20)

1. An electronic atomizing device comprising an atomizer and a power supply mechanism for providing power to the atomizer, the electronic atomizing device comprising:

a liquid storage chamber for storing a liquid matrix capable of conducting electricity;

an atomizing sheet for ultrasonically atomizing the liquid matrix to produce an aerosol;

a mouthpiece having an airflow outlet for the aerosol to escape the atomizer;

the conductive electrode comprises a first conductive electrode and a second conductive electrode, the first conductive electrode and the second conductive electrode are electrically connected with the atomizing sheet, and the first conductive electrode is in contact with the liquid matrix;

at least one conductive element, a portion of which is exposed to the reservoir, the conductive element being capable of communicating with the first conductive electrode through the liquid matrix;

the power supply mechanism includes:

a battery cell;

the controller is respectively and electrically connected with the electric core and the conductive element, and is used for acquiring the electric signal of the conductive element and controlling the electric core to provide electric energy for the atomizing sheet according to the electric signal; the controller is configured to generate PWM signals output to the first conductive electrode and the second conductive electrode, and control the atomizing sheet to vibrate through the PWM signals, wherein the PWM signals received by the first conductive electrode are opposite to the PWM signals received by the second conductive electrode.

2. The electronic atomizing device of claim 1, wherein the atomizer is magnetically connected to the power supply mechanism via the conductive element.

3. The electronic atomizing device of claim 2, wherein the atomizer includes a base provided with an axially extending second through hole, the conductive member extending through the second through hole such that one end of the conductive member extends into the liquid storage chamber and the other end is exposed to the atomizer for magnetically attractive connection with the power supply mechanism.

4. The electronic atomizing device of claim 3, wherein an outer surface of the conductive member is radially extended with at least one rib, and the conductive member is interference fit with the second through hole via the rib.

5. The electronic atomizing device of claim 1, wherein the conductive element includes a plurality of the conductive elements uniformly disposed about the atomizing sheet.

6. The electronic atomizing device of claim 5, wherein the atomizer includes a suction nozzle for providing the aerosol to escape the atomizer, the suction nozzle being configured in a flat shape, the conductive elements being two, a long axis direction of the suction nozzle being perpendicular to a center connection line of the conductive elements.

7. The electronic atomizing device of claim 5, wherein the atomizer includes a mouthpiece for providing escape of the aerosol from the atomizer, the mouthpiece being configured in a circular shape, the conductive element including at least 4.

8. The electronic atomizing device of claim 1, wherein the conductive element includes a plurality of conductive elements, each of the plurality of conductive elements being exposed at a different height in the reservoir.

9. The electronic atomizing device of claim 1, wherein a vertical distance between an exposed portion of the conductive member in the liquid reservoir and the atomizing sheet is no more than one third of a vertical distance between a liquid surface of the liquid substrate and the atomizing sheet.

10. The electronic atomizing device of claim 1, wherein the reservoir includes a first portion and a second portion, the first portion having a larger cross-sectional area than the second portion, the atomizing sheet being immersed in the second portion.

11. The electronic atomizing device of claim 10, wherein the exposed portion of the conductive element is located in the second portion.

12. The electronic atomizing device of claim 1, wherein the power supply mechanism comprises a battery cell, a voltage boosting circuit and an oscillating circuit, the battery cell is electrically connected with the controller, the voltage boosting circuit is electrically connected with the battery cell, the oscillating circuit is electrically connected with the voltage boosting circuit and the controller, and the oscillating circuit is electrically connected with the first conductive electrode and the second conductive electrode.

13. The electronic atomizing device of claim 12, wherein the power mechanism further comprises a signal attenuation circuit, the conductive element being electrically connected to the controller through the signal attenuation circuit.

14. An atomizer, the atomizer comprising:

a liquid storage chamber for storing a liquid matrix capable of conducting electricity;

an atomizing sheet for ultrasonically atomizing the liquid matrix to produce an aerosol;

a mouthpiece having an airflow outlet for the aerosol to escape the atomizer;

the conductive electrode comprises a first conductive electrode and a second conductive electrode, the first conductive electrode and the second conductive electrode are electrically connected with the atomizing sheet, and the first conductive electrode is in contact with the liquid matrix;

At least one conductive element, a portion of which is exposed to the reservoir, the conductive element being capable of communicating with the first conductive electrode through the liquid matrix.

15. A control method of an electronic atomizing device, characterized in that the method is applied to the electronic atomizing device according to claim 1, comprising:

determining a conductive state of the first conductive electrode and the conductive element;

and adjusting the power provided by the battery cell to the atomizing sheet according to the conducting state.

16. The control method of claim 15, wherein prior to said determining the conductive state of the first conductive electrode and the conductive element, the method further comprises:

and turning on the PWM signal output to the first conductive electrode, and turning off the PWM signal output to the second conductive electrode.

17. The control method of claim 16, wherein adjusting the power provided by the battery cell to the atomizing pad according to the on state comprises:

if the first conductive electrode is conducted with the conductive element, the electric core is controlled to provide power for the atomizing sheet;

wherein, before the battery cell provides power to the atomizing sheet, the method further comprises:

And starting the PWM signal output to the second conductive electrode.

18. The control method of claim 15, wherein the conductive elements comprise first and second conductive elements symmetrically distributed about the atomizing sheet along an axis of the atomizer, the determining the conductive state of the first conductive electrode and the conductive elements comprising:

determining the conduction state of the first conductive electrode and the first conductive element and the second conductive element respectively;

if the first conductive electrode is conducted with the first conductive element and the second conductive element, the electric core is controlled to provide power for the atomizing sheet;

and if the first conductive electrode is conducted with any one of the first conductive element and the second conductive element or is not conducted with the first conductive element and the second conductive element, cutting off an electric connection path between the electric core and the atomizing sheet.

19. The control method of claim 15, wherein the conductive element comprises a first conductive element and a second conductive element, a portion of the first conductive element and a portion of the second conductive element being exposed at different heights in the reservoir, respectively, wherein the exposed position of the first conductive element is higher than the exposed position of the second conductive element, the method comprising:

Determining the conduction state of the first conductive electrode and the first conductive element and the second conductive element respectively;

if the first conductive electrode is conducted with the first conductive element and the second conductive element, controlling the electric core to provide first power for the atomizing sheet;

and if the first conductive electrode is conducted with the second conductive element and is not conducted with the first conductive element, controlling the electric core to provide a second power different from the first power for the atomizing sheet.

20. The control method of claim 16, wherein the first power is greater than the second power.