Atomization device and control method thereof using thermal field temperature difference control

Abstract

The present invention provides an atomizing device controlled by thermal field temperature difference, which includes: a power supply component; an atomizing component; a control component connected to the power supply component and the atomizing component, an air inlet connected to the atomizing component, a temperature difference airflow sensor is arranged in the air inlet, the temperature difference airflow sensor has a heating element that can heat itself, and is provided with a first temperature detection point and a second temperature detection point, the first temperature detection point is used to detect the temperature of one end of the heating element, and the second temperature detection point is used to detect the temperature of the other end of the heating element, and the temperature difference airflow sensor is connected to the control component. The present invention also provides a control method for an atomizing device controlled by thermal field temperature difference, in a dynamic thermal field, the temperature difference airflow sensor converts the temperature change signal into an electrical signal and transmits it to the control component, and the control component adjusts the working power of the atomizing component according to the strength of the change of the electrical signal, so that the taste after atomization is good, dry burning is prevented, and the phenomenon of insufficient atomization is avoided.

Description

Technical Field

[0001] The invention relates to an atomizing device controlled by utilizing a thermal field temperature difference and a control method thereof. Background Art

[0002] An electronic cigarette atomizer currently in use includes an atomizer assembly, an oil storage assembly, a battery assembly, and a control assembly. The atomizer assembly is provided with an air inlet, the control assembly is connected to the atomizer assembly, and the oil storage assembly is connected to the atomizer of the atomizer assembly through an oil guide cotton, so that the oil in the oil storage assembly can enter the atomizer, and the battery assembly provides power for the control assembly and the atomizer assembly. When in use, the atomizer of the atomizer assembly works at a constant power to atomize the oil. The oil guide cotton absorbs a fixed amount of oil each time. If the amount of smoke inhaled at one time is large, more oil needs to be atomized, but the oil guide cotton can not absorb enough oil, which can easily cause the heating wire in the atomizer to dry burn; if the amount of smoke inhaled at one time is small, and the oil adsorbed by the oil guide cotton remains unchanged, the atomization of the oil is insufficient, resulting in uneven taste. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an atomization device and a control method thereof using thermal field temperature difference control, which has the characteristic of uniform taste.

[0004] The present invention is implemented as follows: an atomizing device using thermal field temperature difference control, comprising:

[0005] a power supply assembly;

[0006] an atomizing assembly;

[0007] A control component, connected to the power component and the atomization component,

[0008] An air inlet duct is connected to the atomization component. A temperature difference airflow sensor is arranged in the air inlet duct. The temperature difference airflow sensor has a heating element that can heat itself, and is provided with a first temperature detection point and a second temperature detection point. The first temperature detection point is used to detect the temperature of one end of the heating element, and the second temperature detection point is used to detect the temperature of the other end of the heating element. The temperature difference airflow sensor is connected to the control component.

[0009] Furthermore, a microphone is arranged in the air inlet duct, and the microphone is connected to the temperature difference airflow sensor.

[0010] Furthermore, one end of the heating element is fixed and sealed, the first temperature detection point detects the temperature of one end of the heating element in real time, the other end of the heating element is exposed in the air intake duct, and the second temperature detection point detects the temperature of the other end of the heating element in real time.

[0011] A control method for an atomizing device using thermal field temperature difference control comprises the following steps:

[0012] a. The microphone starts to detect the inhalation status to see if the person is smoking. If not, the detection continues; if yes, the next step is entered;

[0013] b. Start the temperature difference airflow sensor. In the initial state, the sensor heats the surface of its own detection point. The temperature of the first temperature detection point is TS1, and the temperature of the second temperature detection point is TS2. In a static thermal field, i.e. when there is no airflow, TS1=TS2, and in a dynamic thermal field, i.e. when airflow is flowing, TS1≠TS2;

[0014] c. Let ΔT = TS2-TS1. In the dynamic thermal field, the temperature difference airflow sensor converts the signal of the temperature change ΔT into an electrical signal and transmits it to the control component. The control component adjusts the working power of the atomization component according to the strength of the change in the electrical signal.

[0015] Furthermore, the cross-section of the air inlet duct is defined as S, the flow rate of the air in the air inlet duct is defined as V, and within the time Δt, the flux of the gas in the air inlet duct is defined as Q, Q=S×V×Δt, and the power of the adjusted atomization assembly is defined as P=f(Q,Δt).

[0016] Furthermore, the temperature TS2 of the second temperature detection point is defined as the temperature reference value, and the temperature TS1 of the first temperature detection point is defined as follows: within the time Δt, air with a flux of Q in the air inlet duct flows to the atomization component, taking away part of the heat, and the temperature TS1 of the first temperature detection point decreases, and the difference ΔT=TS2-TS1 becomes larger. The larger the difference, the more different electrical signals the temperature difference airflow sensor outputs according to the difference.

[0017] Furthermore, in step c, the control component determines the size of the air flow rate V in the intake duct and the speed of the change of the thermal field state according to the strength of the received electrical signal.

[0018] Furthermore, if the difference of ΔT=TS2-TS1 is a negative value, it is determined that the smoking state is not in progress.

[0019] A temperature difference airflow sensor is provided in the air intake duct of the present invention. The temperature difference airflow sensor has a heating element that can heat itself, and is provided with a first temperature detection point and a second temperature detection point. The first temperature detection point is used to detect the temperature of one end of the heating element, and the second temperature detection point is used to detect the temperature of the other end of the heating element. The temperature difference airflow sensor is connected to the control component. The first temperature detection point and the second temperature detection point are converted into electrical signals according to the difference in the detected temperatures and transmitted to the control component. The control component determines the working power of the atomization component, and judges the air flow rate, the flux of the gas in the air intake duct, and the speed of the change of the thermal field state according to the temperature difference, so as to determine the corresponding working power of the atomization component to start, so that the taste after atomization is uniform and the smoking experience is improved.

[0020] The present invention also provides a control method for an atomization device using thermal field temperature difference control. In a dynamic thermal field, a temperature difference airflow sensor converts a temperature change ΔT signal into an electrical signal and transmits it to a control component. The control component adjusts the working power of the atomization component according to the strength of the electrical signal change, and determines the power of the atomization component according to the temperature change, so that the taste after atomization is good, dry burning is prevented, and the phenomenon of insufficient atomization is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of a temperature difference airflow sensor provided by the present invention;

[0023] Figure 2 A flow chart provided for the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 2 The embodiment of the present invention provides an atomization device using thermal field temperature difference control and a control method thereof, which includes an atomization device using thermal field temperature difference control, which includes: a power supply component; an atomization component; a control component connected to the power supply component and the atomization component, an air inlet duct connected to the atomization component, a temperature difference airflow sensor 1 is arranged in the air inlet duct, the temperature difference airflow sensor 1 has a heating element 2 that can heat itself, and is provided with a first temperature detection point and a second temperature detection point, the first temperature detection point is used to detect the temperature of one end of the heating element 2, and the second temperature detection point is used to detect the temperature of the other end of the heating element 2, and the temperature difference airflow sensor 1 is connected to the control component.

[0026] Furthermore, a microphone is arranged in the air intake duct, and the microphone is connected to the temperature difference airflow sensor 1. The microphone can timely trigger the temperature difference airflow sensor 1, and the microphone is equivalent to a pressure switch. When a change in air pressure in the air intake duct is detected, the microphone is activated. In addition, the power of the microphone is small, which can save electric energy. If an airflow sensor is used to detect the change in air pressure, the energy consumption will increase greatly because the working power of the airflow sensor is large.

[0027] One end of the heating element 2 is fixed and sealed, the first temperature detection point detects the temperature of one end of the heating element 2 in real time, the other end of the heating element 2 is exposed in the air intake duct, and the second temperature detection point detects the temperature of the other end of the heating element 2 in real time. In this design, the left end of the heating element 2 is fixed, the right end of the heating element 2 is the free end, the first temperature detection point is at the left end of the heating element 2, and the second temperature detection point is at the right end of the heating element 2. Of course, the left and right positions can also be swapped, and this should not be limiting.

[0028] A control method for an atomizing device using thermal field temperature difference control comprises the following steps:

[0029] a. The microphone starts to detect the inhalation status to see if the person is smoking. If not, the detection continues; if yes, the next step is entered;

[0030] b. Start the temperature difference airflow sensor 1. In the initial state, the sensor heats the surface of its own detection point. The temperature of the first temperature detection point is TS1, and the temperature of the second temperature detection point is TS2. In a static thermal field, i.e. when there is no airflow, TS1=TS2, and in a dynamic thermal field, i.e. when airflow is flowing, TS1≠TS2;

[0031] c. Let ΔT = TS2-TS1. In the dynamic thermal field, the temperature difference airflow sensor 1 converts the signal of the temperature change ΔT into an electrical signal and transmits it to the control component. The control component adjusts the working power of the atomization component according to the strength of the change in the electrical signal.

[0032] Furthermore, the cross-section of the air inlet duct is defined as S, the flow rate of the air in the air inlet duct is defined as V, and within the time Δt, the flux of the gas in the air inlet duct is defined as Q, Q=S×V×Δt, and the power of the adjusted atomization assembly is defined as P=f(Q,Δt).

[0033] Furthermore, the temperature TS2 of the second temperature detection point is defined as the temperature reference value, and the temperature TS1 of the first temperature detection point is defined as follows: within the time Δt, air with a flux of Q in the air inlet duct flows toward the atomization component, taking away part of the heat, and the temperature TS1 of the first temperature detection point decreases, and the difference ΔT=TS2-TS1 becomes larger. The larger the difference, the different electrical signals output by the temperature difference airflow sensor 1 according to the difference.

[0034] Furthermore, in step c, the control component determines the flow velocity V of the air in the intake duct and the speed of change of the thermal field state according to the strength of the received electrical signal. The flow velocity V can be calculated by reverse calculation of P=f(Q,Δt), and the change of the thermal field can be reflected in time according to the flow velocity V.

[0035] Furthermore, if the difference of ΔT=TS2-TS1 is a negative value, it is judged that it is not a smoking state, because this situation belongs to the reverse flow of airflow in the air intake duct, that is, the gas flows from the mouth to the air intake duct, which is exactly the opposite of the normal airflow from the air intake duct to the mouth. Therefore, it is judged that it is not a smoking state to prevent misoperation.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An atomizing device using thermal field temperature difference control, characterized in that: include: a power supply assembly; an atomizing assembly; A control component connected to the power supply component and the atomization component; an air inlet, connected to the atomizing assembly, wherein a temperature difference airflow sensor is arranged in the air inlet, wherein the temperature difference airflow sensor has a heating element capable of self-heating, and is provided with a first temperature detection point and a second temperature detection point, wherein the heating element is partially exposed in the air inlet, wherein the first temperature detection point is used to detect the temperature of one end of the heating element, and the second temperature detection point is used to detect the temperature of the other end of the heating element, and the temperature difference airflow sensor is connected to the control assembly, so that the control assembly determines the corresponding working power of the atomizing assembly by receiving an electrical signal converted according to the temperature difference detected at the first temperature detection point and the second temperature detection point; A microphone is arranged in the air intake duct, and the microphone is connected to the temperature difference airflow sensor. The microphone can trigger the temperature difference airflow sensor in time. The microphone is equivalent to a pressure switch, and the microphone is activated when a change in air pressure in the air intake duct is detected.

2. The atomizing device using thermal field temperature difference control as claimed in claim 1, characterized in that: One end of the heating element is fixed and sealed, the first temperature detection point detects the temperature of one end of the heating element in real time, the other end of the heating element is exposed in the air intake duct, and the second temperature detection point detects the temperature of the other end of the heating element in real time.

3. The control method of the atomization device using thermal field temperature difference control as claimed in claim 1, characterized in that: The following steps are involved: a. The microphone starts to detect the inhalation status to see if the person is smoking. If not, the detection continues; if yes, the next step is entered. b. Start the temperature difference airflow sensor. In the initial state, the sensor heats the surface of its own detection point. The temperature of the first temperature detection point is TS1, and the temperature of the second temperature detection point is TS2. In a static thermal field, that is, when there is no airflow, TS1= TS2, and in a dynamic thermal field, that is, when airflow is flowing, TS1≠TS2; c. Let ΔT = TS2-TS1, then the temperature difference airflow sensor converts the signal of temperature change ΔT into an electrical signal and transmits it to the control component. The control component adjusts the working power of the atomization component according to the strength of the change in the electrical signal.

4. The control method of the atomization device using thermal field temperature difference control as claimed in claim 3, characterized in that: Define the cross section of the intake duct as S, the flow rate of the air in the intake duct as V, and the flux of the gas in the intake duct within the time Δt as Q, Q=S×V×Δt.

5. The control method of the atomizing device using thermal field temperature difference control as claimed in claim 4, characterized in that: Define the temperature TS2 of the second temperature detection point as the temperature reference value, the temperature TS1 of the first temperature detection point, within the Δt time, there is air with a flux of Q flowing to the atomization component in the air inlet duct, taking away part of the heat, the temperature TS1 of the first temperature detection point decreases, and the difference ΔT=TS2-TS1 becomes larger. The larger the difference, the different electrical signals output by the temperature difference airflow sensor according to the difference.

6. The control method of the atomization device using thermal field temperature difference control as claimed in claim 3, characterized in that: In step c, the control component determines the flow rate V of the air in the intake duct and the speed of the change of the thermal field state according to the strength of the received electrical signal.

7. The control method of the atomization device using thermal field temperature difference control as claimed in claim 3, characterized in that: If the difference of ΔT=TS2-TS1 is a negative value, it is judged that the person is not in the smoking state.

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