WO2022148140A1

WO2022148140A1 - Electronic atomizing device having humidity-sensitive component

Info

Publication number: WO2022148140A1
Application number: PCT/CN2021/131359
Authority: WO
Inventors: 林光榕; 秦飞; 刘卫丽; 郑贤彬
Original assignee: 惠州市新泓威科技有限公司
Priority date: 2021-01-08
Filing date: 2021-11-18
Publication date: 2022-07-14
Also published as: CN214962654U

Abstract

An electronic atomizing device having a humidity-sensitive component. The electronic atomizing device comprises an atomizing assembly and a battery assembly connected to each other. The atomizing assembly comprises an atomizing core (1). The atomizing core (1) comprises a liquid-guiding body (11), a heat-generating component (12), and a humidity-sensitive component (13). The humidity-sensitive component (13) is used for detecting the humidity of a liquid to be atomized that the liquid-guiding body (11) comprises. A microcontroller (2), a humidity-sensitive component detection circuit (3), and a power output control circuit (4) are provided on a circuit control board. The microcontroller (2) comprises a humidity processing module (20). The humidity-sensitive component detection circuit (3) is connected to the humidity-sensitive component (13) and to the humidity processing module (20). The power output control circuit (4) is connected to the microcontroller (2) and to the heat-generating component (12). The humidity-sensitive component detection circuit (3) is used for detecting the resistance of the humidity-sensitive component (13) and transmitting to the humidity processing module (20). The humidity processing module (20) is used for converting the resistance of the humidity-sensitive component (13) into a corresponding humidity value. The microcontroller (2) outputs a control signal on the basis of the humidity value. The power output control circuit (4) outputs a corresponding power to the heat-generating component (12) or cuts off output power on the basis of the control signal.

Description

Electronic atomizing device with humidity sensitive element

technical field

The present invention relates to the technical field of electronic atomizing devices, and more particularly, the present invention relates to an electronic atomizing device having a humidity-sensitive element.

Background technique

Electronic atomization equipment generally includes atomization components and battery components. The battery components are used to control the atomization components and provide power to the atomization components. The atomization assembly generally includes a liquid storage device and an atomization core. The liquid storage device is filled with the liquid to be atomized. The liquid to be atomized, that is, the liquid to be atomized can be smoke liquid or a solution containing drugs. The atomization core generally includes a guide. Liquid and heating element, conducting liquid to receive, penetrate, and conduct the liquid to be atomized in the liquid storage device, the heating element generates heat after being energized, and the atomizing core is used to heat, evaporate, and atomize the liquid to be atomized into aerosol or steam, Vapor mist for users to inhale and use for health and medical purposes. The atomization core is the key component of the electronic atomizer, and its performance directly determines the atomization effect, heating efficiency and user experience of the electronic atomizer.

At present, the atomizing core on the market is usually composed of liquid-conducting cotton and heating resistance wire, or ceramic liquid-conducting and heating resistance wire. The combination of heating resistance wire and liquid-conducting cotton is generally wound, and the combination of resistance wire and ceramic liquid-conducting The methods include implantation, printing, patch, etc. Different combination methods have different effects on liquid conduction efficiency and heat transfer efficiency. In the existing atomizing core, when the atomizing liquid is about to be used up or the conduction is not smooth, the temperature of the atomizing core will rise sharply, resulting in dry burning of the atomizing core, and the atomizing core is easy to be burned at high temperature. As well as producing scorched smoke, inhaling it will cause a bad taste and experience to the user.

The way to prevent dry burning of the existing atomizing core is generally to detect the temperature of the atomizing core during operation, and when the temperature of the atomizing core rises to a set threshold, the power supply is turned off to stop the atomizing core from working. This method needs to use the temperature sensing element to detect the temperature of the atomizing core in real time, but the method of detecting the temperature is detected after the lack of the liquid to be atomized and the temperature rises to a certain extent, so it has a certain hysteresis. Sex, there is still a certain degree of dry burning.

technical problem

The purpose of the present invention is to provide an electronic atomization device with a humidity sensitive element in order to overcome the deficiencies of the above-mentioned technologies.

technical solutions

An electronic atomization device with a humidity-sensitive element, comprising an atomization assembly and a battery assembly that are connected to each other, the battery assembly is used to provide power to the atomization assembly and control the atomization assembly, and the atomization assembly includes a heating element for heating And atomizing the atomizing core of the liquid to be atomized, the atomizing core includes a liquid conducting element, a heating element and a humidity sensing element, the conducting liquid is made of sintered porous ceramic base material, and the humidity sensing element is used to detect the The humidity of the liquid to be atomized contained in the conductive liquid, the battery assembly includes a battery, a circuit control board, and the circuit control board is provided with a microcontroller, a humidity sensing element detection circuit and a power output control circuit, the The microcontroller includes a humidity processing module, the humidity sensing element detection circuit is connected to the humidity sensing element and the humidity processing module, the power output control circuit is connected to the microcontroller and the heating element, and the humidity sensing element detection circuit is used for In order to detect the resistance value of the humidity sensor and transmit it to the humidity processing module, the humidity processing module is used to convert the resistance value of the humidity sensor into a corresponding humidity value. The humidity value outputs a control signal, and the power output control circuit outputs corresponding power to the heating element or turns off the output power according to the control signal.

Preferably, the humidity-sensitive element is made of a humidity-sensitive material, the humidity-sensitive material and the porous ceramic matrix material are mixed together and sintered, and the humidity-sensitive element is integrated with the conductive liquid.

Preferably, the porous ceramic matrix material includes at least one of SiO₂, Fe₂O₃, and Al₂O₃.

Preferably, the humidity sensitive material includes MgO, Cr ₂ O ₃ , TiO ₂ , NH ₄ VO ₃ , ZnCr ₂ O ₄ , ZnO, SnO ₂ , LiZnVO ₄ , ZnCrVO ₄ , V ₂ O ₅ , Fe ₂ O ₃ , One or more of Li ₂ O, Na ₂ O, K ₂ O, and CaO.

Preferably, the microcontroller includes a chip MCU, and the chip MCU is provided with 28 pins, wherein the third pin is connected to the signal terminal VDD for power supply, the fourth pin is connected to the ground terminal GND, and the fifth pin is connected to the ground terminal GND. The pin is connected to the signal terminal MCU-RST for MCU reset, the signal terminal MCU-RST is also connected to one end of the capacitor C10, the other end of the capacitor C10 is grounded, and the sixth pin is connected to detect the humidity sensor resistance. The first analog voltage signal terminal RES-DET1, the 7th pin is connected to the second analog voltage signal terminal RES-DET2 for detecting the resistance of the humidity sensor, and the 24th pin is connected to the enable signal terminal for measuring the resistance Res-DET-EN, the 28th pin is connected to the signal terminal PWM for outputting the chopper control signal.

Preferably, the power output control circuit includes a MOS transistor Q1 and a triode Q2A, the source S of the MOS transistor Q1 is connected to the positive electrode BAT+ of the power supply and one end of the resistor R4 at the same time, and the drain D of the MOS transistor Q1 is connected to output To the power output signal terminal PWM-OUT of the heating element, the gate G of the MOS transistor Q1 is connected to one end of the resistor R5, and the collector C of the transistor Q2A is connected to the other end of the resistor R4 and the resistor at the same time. The other end of R5, the base B of the triode Q2A is connected to one end of the resistor R6, the emitter E of the triode Q2A is grounded and connected to one end of the resistor R7 at the same time, and the other end of the resistor R6 and the resistor R7 are simultaneously connected for Input the signal terminal PWM of the chopper control signal.

Preferably, the humidity sensor detection circuit includes a MOS transistor Q3 and a triode Q2B, the source S of the MOS transistor Q3 is connected to the positive electrode BAT+ of the power supply and one end of the resistor R12 at the same time, and the drain D of the MOS transistor Q3 is simultaneously connected to the resistor. One end of R19 and one end of the resistor R17, the other end of the resistor R19 is connected to one end of the resistor R20 and one end of the resistor RS of the humidity sensor, the other end of the resistor RS is grounded, and the collector of the transistor Q2B C is simultaneously connected to the other end of the resistor R12 and the gate G of the MOS transistor Q3, the base B of the triode Q2B is connected to one end of the resistor R13, and the other end of the resistor R13 is connected to the enable for resistance measurement The signal terminal Res-DET-EN, the emitter E of the transistor Q2B is simultaneously grounded and connected to one end of the resistor R18, one end of the capacitor C9, one end of the resistor R21 and one end of the capacitor C11, and the other end of the resistor R17 is connected at the same time The first analog voltage signal terminal RES-DET1 used to detect the resistor RS, the other end of the resistor R18 and the other end of the capacitor C19, and the other end of the resistor R20 is connected to detect the resistor RS at the same time The second analog voltage signal terminal RES-DET2, the other end of the resistor R21 and the other end of the capacitor C11.

beneficial effect

The electronic atomization device of the present invention utilizes the characteristic that the humidity-sensitive element has different resistance values when the dry and humidity of the liquid to be atomized are different, and the humidity-sensitive element is arranged on the conducting liquid of the atomizing core, and the humidity-sensitive element has a corresponding Humidity-sensitive resistance value, the dry humidity of the atomizing core can be measured by detecting its resistance, so that when the liquid to be atomized is lacking in the conducting liquid, its humidity can be reduced and can be quickly detected, thereby reducing power or shutting down in time. When the power is cut off, the atomizing core can be prevented from dry burning quickly and without delay.

Description of drawings

Fig. 1 is the sectional view of the atomizing core of the present invention;

Fig. 2 is the functional module structure schematic diagram of the circuit control board of the present invention;

Fig. 3 is the circuit diagram of the chip MCU of the microcontroller of the present invention;

4 is a circuit diagram of a power output control circuit of the present invention;

FIG. 5 is a circuit diagram of the humidity sensor detection circuit of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The electronic atomization device with humidity sensitive element of the present invention includes an atomization assembly and a battery assembly (not shown in the figure) which are connected to each other, and the battery assembly is used to provide power to the atomization assembly and control the atomization assembly.

As shown in FIG. 1 , the atomization assembly of the embodiment of the present invention includes a liquid storage device (not shown in the figure) and an atomization core 1 for heating and atomizing the liquid to be atomized. The atomization core 1 includes a liquid guide 11 , The heating element 12 and the humidity sensing element 13, the liquid conducting element 11 is made of sintered porous ceramic base material, and the humidity sensing element 13 is used to detect the humidity of the liquid to be atomized contained in the conducting liquid 11. The heating element 12 is provided with pins 14, and the pins of the humidity sensing element 13 are not shown in the figure. The liquid storage device is used to store the liquid to be atomized, and the liquid to be atomized in the liquid storage device flows to the liquid guide 11 through the set channel, and the liquid guide 11 can absorb, penetrate, store the liquid to be atomized and transfer the liquid to be atomized Conducted to the heating element 12 . The heating element 12 can heat, evaporate and atomize the liquid to be atomized into aerosol or steam or mist, and the generated mist can be sucked out by the user through the mist channel provided in the atomization assembly.

The humidity of the liquid guide 11 refers to relative humidity. When the liquid guide 11 completely absorbs, penetrates, and stores the liquid to be atomized in a maximum amount, its humidity is 100%. When the liquid guide 11 does not absorb the liquid to be atomized, that is, it is completely dry. Its humidity is 0%. The humidity sensing element 13 can sense the humidity of the conductive liquid 11 by changing the resistance value.

In the present embodiment, the liquid guide 11 of the atomizing core 1 is made of porous ceramic base material, and the moisture sensitive element 13 is made by adding the moisture sensitive material to the liquid guide 11 and integrated. The heating element 12 is made of a resistive material that can be energized and heated. That is, the humidity-sensitive material and the porous ceramic matrix material are mixed together and sintered, and the humidity-sensitive element and the conductive liquid are integrated. In other embodiments, the humidity sensor 13 may also be an independent humidity sensor. The humidity-sensitive element 13 is composed of a humidity-sensitive material. The humidity-sensitive material refers to a functional material whose resistance value changes with the humidity of the environment. Zinc oxide, etc. It can convert changes in humidity into electrical signals through resistance values. Moisture-sensitive materials can realize automatic indication, automatic recording, automatic control and adjustment of humidity.

In the embodiment of the present invention, the porous ceramic matrix material is composed of SiO₂, Fe₂O₃, and Al₂O₃, and the humidity-sensitive material is composed of MgO, Cr ₂ O ₃ , TiO ₂ , and NH ₄ VO ₃ .

In other embodiments, the humidity sensitive material further includes ZnCr ₂ O ₄ , ZnO, SnO ₂ , LiZnVO ₄ , ZnCrVO ₄ , V ₂ O ₅ , Fe ₂ O ₃ , Li ₂ O, Na ₂ O, K ₂ O, and CaO. one or more of.

As shown in FIG. 2 , the battery assembly of the embodiment of the present invention includes a battery and a circuit control board (not shown in the figure), and the functional modules provided on the circuit control board include a microcontroller 2 , a humidity sensor detection circuit 3 and a power output The control circuit 4, the microcontroller 2 includes a humidity processing module 20, the humidity sensor detection circuit 3 is connected to the humidity sensor 13 and the humidity processing module 20, the power output control circuit 4 is connected to the microcontroller 2 and the heating element 12, and the humidity sensor detects The circuit 3 is used to detect the resistance value of the humidity sensor 13 and send it to the humidity processing module 20. The humidity processing module 20 is used to convert the resistance value of the humidity sensor 13 into the corresponding humidity value, and the microcontroller 2 outputs the output according to the humidity value. Control signal, the power output control circuit 4 outputs corresponding power to the heating element 12 or turns off the output power to the heating element 12 according to the control signal.

As shown in FIG. 3 , in the embodiment of the present invention, the microcontroller 2 includes a chip MCU, and the chip MCU has 28 pins, wherein the third pin is connected to the signal terminal VDD for power supply, and its power supply voltage is 2.8V , the fourth pin is connected to the ground terminal GND, the fifth pin is connected to the signal terminal MCU-RST for MCU reset, the signal terminal MCU-RST is also connected to one end of the capacitor C10, the other end of the capacitor C10 is grounded, and the sixth pin is connected The first analog voltage signal terminal RES-DET1 used to detect the resistance of the humidity sensor, the 7th pin is connected to the second analog voltage signal terminal RES-DET2 used to detect the resistance of the humidity sensor, and the 24th pin is connected to measure the resistance The enable signal terminal Res-DET-EN, the 28th pin is connected to the signal terminal PWM used to output the chopper control signal. The chip MCU sends an enable signal of the detection resistance to the humidity sensor detection circuit 3 through the enable signal terminal Res-DET-EN, and the chip MCU inputs the input through the first analog voltage signal terminal RES-DET1 and the second analog voltage signal terminal RES-DET2 The resistance value of the humidity sensor 13 detects the signal, and the chip MCU outputs the control signal through the signal terminal PWM to adjust the power.

As shown in FIG. 4 , the power output control circuit 4 of the embodiment of the present invention includes a MOS transistor Q ₁ and a triode Q _2A . The source S of the MOS transistor Q ₁ is connected to the positive electrode BAT+ of the power supply and _one end of the resistor R4 at the same time. The drain D is connected to the power output signal terminal PWM-OUT for output to the heating element ₁₂ , the gate G of the MOS transistor Q1 is connected to _one end of the resistor R5, and the collector C of the transistor _Q2A is connected to the other end of the resistor R4 and _The other end of the resistor _R5 , the base B of the transistor _Q2A is connected to one end of the resistor R6, the emitter E of the transistor _Q2A is grounded and connected to one end of the resistor _R7 at the same time, and the other end of the resistor _R6 and the resistor _R7 are connected at the same time Signal terminal PWM for input of chopper control signal. The power output control circuit 4 receives the PWM control signal sent by the chip MCU through the signal terminal PWM, and outputs different powers to the heating element 12 through the power output signal terminal PWM-OUT. In this embodiment, the power output signal terminal PWM-OUT is connected to the resistance of the heating element 12, and the resistance of the heating element 12 is not shown in this figure.

As shown in FIG. 5 , the humidity sensor detection circuit 3 of the embodiment of the present invention includes a MOS transistor Q ₃ and a triode Q _2B , the source S of the MOS transistor Q ₃ is connected to the positive electrode BAT+ of the power supply and one end of the resistor R ₁₂ at the same time, and the MOS transistor Q The drain D of ₃ is connected to one end of the resistor R ₁₉ and one end of the resistor R ₁₇ at the same time, and the other end of the resistor R ₁₉ is connected to one end of the resistor R ₂₀ and one end of the resistor RS of the humidity sensor at the same time. The other end of the resistor RS is grounded, and the triode The collector C of _Q2B is connected to the other end of the resistor _R12 and the gate G of the MOS transistor _Q3 at the same time, the base B of the transistor _Q2B is connected to one end of the resistor _R13 , and the other end of the resistor _R13 is connected to the resistor R13 for measuring resistance. The enable signal terminal Res-DET-EN, the emitter E of the transistor Q _2B is grounded and connected to one end of the resistor R ₁₈ , one end of the capacitor C ₉ , one end of the resistor R ₂₁ and one end of the capacitor C ₁₁ , and the one end of the resistor R ₁₇ . The other end is simultaneously connected to the first analog voltage signal terminal RES-DET1 for detecting the resistor RS, the other end of the resistor R ₁₈ and the other end of the capacitor C ₁₉ , and the other end of the resistor R ₂₀ is simultaneously connected to the second terminal for detecting the resistor RS. The analog voltage signal terminal RES-DET2, the other terminal of the resistor R ₂₁ and the other terminal of the capacitor C11. The humidity sensor detection circuit 3 receives the enable signal of the detection resistor sent by the chip MCU through the enable signal terminal Res-DET-EN. At this time, the humidity sensor detection circuit 3 detects the resistance RS of the humidity sensor. The humidity sensor detection circuit 3 detects the voltage across the reference resistor R ₁₉ through the first analog voltage signal terminal RES-DET1 and the second analog voltage signal terminal RES-DET2, so as to obtain the current signal flowing through the reference resistor R ₁₉ , and further calculate The resistance value of the resistance RS of the humidity sensor.

Industrial Applicability

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

An electronic atomization device with a humidity-sensitive element, comprising an atomization assembly and a battery assembly that are connected to each other, and the battery assembly is used to provide power to the atomization assembly and control the atomization assembly, characterized in that the atomization assembly is It includes an atomizing core for heating and atomizing the liquid to be atomized. The atomizing core includes a liquid-conducting element, a heating element and a moisture-sensing element. For detecting the humidity of the liquid to be atomized contained in the conducting liquid, the battery assembly includes a battery and a circuit control board, and the circuit control board is provided with a microcontroller, a humidity sensing element detection circuit and a power output control circuit, the microcontroller includes a humidity processing module, the humidity sensing element detection circuit is connected to the humidity sensing element and the humidity processing module, the power output control circuit is connected to the microcontroller and the heating element, the humidity sensing element The element detection circuit is used to detect the resistance value of the humidity sensor and send it to the humidity processing module, and the humidity processing module is used to convert the resistance value of the humidity sensor into a corresponding humidity value. The controller outputs a control signal according to the humidity value, and the power output control circuit outputs corresponding power to the heating element or turns off the output power according to the control signal.
The electronic atomization device with a humidity-sensitive element according to claim 1, wherein the humidity-sensitive element is composed of a humidity-sensitive material, and the humidity-sensitive material and the porous ceramic base material are mixed together and sintered to make , the humidity sensitive element is integrated with the conducting liquid.
The electronic atomization device with a humidity sensitive element according to claim 2, wherein the porous ceramic matrix material comprises at least one of SiO₂, Fe₂O₃, and Al₂O₃.
The electronic atomization device with a humidity-sensitive element according to claim 2, wherein the humidity-sensitive material comprises MgO, Cr 2 O 3 , TiO 2 , NH 4 VO 3 , ZnCr 2 O 4 , ZnO, SnO 2. One or more of LiZnVO 4 , ZnCrVO 4 , V 2 O 5 , Fe 2 O 3 , Li 2 O, Na 2 O, K 2 O, and CaO.
The electronic atomization device with a humidity-sensitive element according to claim 1, wherein the microcontroller comprises a chip MCU, and the chip MCU is provided with 28 pins, wherein the third pin is connected to The signal terminal VDD of the power supply, the 4th pin is connected to the ground terminal GND, the 5th pin is connected to the signal terminal MCU-RST for MCU reset, the signal terminal MCU-RST is also connected to one end of the capacitor C 10 , and the capacitor C The other end of 10 is grounded, the 6th pin is connected to the first analog voltage signal terminal RES-DET1 used to detect the humidity sensor resistance, and the 7th pin is connected to the second analog voltage used to detect the humidity sensor resistance. Signal terminal RES-DET2, the 24th pin is connected to the enable signal terminal Res-DET-EN for measuring resistance, and the 28th pin is connected to the signal terminal PWM used to output the chopper control signal.
The electronic atomization device with a humidity sensor according to claim 1, wherein the power output control circuit comprises a MOS transistor Q1 and a triode Q2A , and the source S of the MOS transistor Q1 is connected to a power supply at the same time Anode BAT+ and one end of the resistor R4, the drain D of the MOS transistor Q1 is connected to the power output signal terminal PWM-OUT for outputting to the heating element, and the gate G of the MOS transistor Q1 is connected to the resistor R5 one end of the transistor Q 2A , the collector C of the transistor Q 2A is connected to the other end of the resistor R 4 and the other end of the resistor R 5 at the same time, the base B of the transistor Q 2A is connected to one end of the resistor R 6 , the The emitter E of the transistor Q2A is grounded and connected to one end of the resistor R7 at the same time, and the other end of the resistor R6 and the resistor R7 are connected to the signal terminal PWM for inputting the chopper control signal at the same time.
The electronic atomization device with a humidity sensor according to claim 1, wherein the humidity sensor detection circuit comprises a MOS transistor Q3 and a triode Q2B , and the source S of the MOS transistor Q3 is connected simultaneously The positive electrode BAT+ of the power supply and one end of the resistor R12 , the drain D of the MOS transistor Q3 is connected to one end of the resistor R19 and one end of the resistor R17 at the same time, and the other end of the resistor R19 is connected to one end of the resistor R20 and One end of the resistor RS of the humidity sensor, the other end of the resistor RS is grounded, and the collector C of the transistor Q 2B is simultaneously connected to the other end of the resistor R 12 and the gate G of the MOS transistor Q 3 , the base B of the transistor Q 2B is connected to one end of the resistor R 13 , the other end of the resistor R 13 is connected to the enable signal terminal Res-DET-EN for measuring resistance, and the emitter E of the transistor Q 2B Simultaneously ground and connect one end of the resistor R18 , one end of the capacitor C9 , one end of the resistor R21 , and one end of the capacitor C11 , and the other end of the resistor R17 is simultaneously connected to the first analog for detecting the resistor RS The voltage signal terminal RES-DET1, the other end of the resistor R 18 and the other end of the capacitor C 19 , the other end of the resistor R 20 is connected to the second analog voltage signal terminal RES for detecting the resistor RS at the same time -DET2, the other end of the resistor R 21 and the other end of the capacitor C 11 .