Aerosol generation system, measurement method, atomization device, and power supply device

Patent metadata

Field	Value
Publication number	US-12114708-B2
Application number	US-202017753311-A
Country	US
Kind code	B2
Filing date	Sep 3, 2020
Priority date	Sep 3, 2019
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

The present disclosure provides an aerosol generation system, a measurement method, an atomization device, and a power supply device. The aerosol generation system comprises: a liquid storage cavity, a vaporization element, a battery cell providing a power to the vaporization element, an air flow sensor for measuring an air flow inhalation velocity, and a controller. The controller is configured to determine the consumption of a liquid matrix in a time period on the basis of the power applied to the vaporization element, the air flow velocity, a correlation coefficient between the amount of aerosol generated and the power applied to the vaporization element, and a correction constant between the amount of aerosol generated and the air flow velocity in the time period. The use of the aerosol generation system can accurately estimate, measure, and/or predict the amount of the aerosol or the liquid matrix material delivered to a user.

First claim

The invention claimed is:

1. An aerosol generation system, comprising:
a liquid storage cavity, which is configured for storing a liquid matrix;
a vaporization element, which is configured for vaporizing the liquid matrix to form an aerosol for a user to inhale;
a battery cell, which is configured for providing a power to the vaporization element;
an air flow sensor, which is configured for measuring an air flow velocity formed by user inhalation passing through the aerosol generation system; and
a controller, which is configured for determining the consumption of the liquid matrix in a time period on the basis of the power applied to the vaporization element, the air flow velocity, a correlation coefficient and a correction constant in the time period; wherein
the correlation coefficient is a coefficient of correlation between the power applied to the vaporization element and the amount of aerosol generated, and the correction constant is a modified value for correlation between the air flow velocity passing through the aerosol generation system and the amount of aerosol generated.

2. The aerosol generation system according to claim 1 , wherein the time period comprises multiple unit time lengths;
the controller is configured for:
calculating the air flow passing through the aerosol generation system per unit time length through the air flow velocity;
calculating the amount of aerosol generated in the unit time length through the power applied to the vaporization element, the correlation coefficient and the correction constant in the unit time length; and
calculating the consumption of the liquid matrix in the time period through the amount of aerosol generated and the air flow in the unit time length.

3. The aerosol generation system according to claim 1 , wherein the controller is configured for determining the consumption of the liquid matrix in the time period according to the following formula:

M

c
⁢
o
⁢
n
⁢
s
⁢
u
⁢
m
⁢
p
⁢
t
⁢
i
⁢
o
⁢
n

=

∑

t
=
0

n

(

n

t

)

[

(

a
×
Pf

+
k

)

×
Vt
×
S

]

,

where M consumption is the consumption of the liquid matrix in the time period, Pf is the power applied to the vaporization element in a unit time length, a is the correlation coefficient, k is the correction constant, Vt is the air flow velocity passing through the aerosol generation system, S is a constant, t is time, n is a number of unit time lengths included in the time period.

4. The aerosol generation system according to claim 1 , wherein the controller is further configured for estimating the remaining amount of the liquid matrix inside the liquid storage cavity on the basis of the determined consumption of the liquid matrix.

5. The aerosol generation system according to claim 4 , wherein the controller is configured for estimating the remaining amount of the liquid matrix inside the liquid storage cavity by subtracting the consumption from the known initial amount of the liquid matrix stored in the liquid storage cavity.

6. The aerosol generation system according to claim 1 , further comprising:
an information memory unit, which stores calculation constant information, the calculation constant information comprising the correlation coefficient information and the correction constant information; and
an information acquisition unit, which is configured for receiving the calculation constant information stored in the information memory unit and thus acquiring the correlation coefficient or the correlation constant.

7. The aerosol generation system according to claim 6 , wherein the correlation coefficient information comprises the correlation coefficient or a physical and chemical parameter of the liquid matrix associated to the correlation coefficient; and
the information acquisition unit is configured for receiving the correlation coefficient information and thus acquiring the correlation coefficient or the physical and chemical parameter of the liquid matrix associated to the correlation coefficient.

8. The aerosol generation system according to claim 7 , wherein the controller stores a comparison table between the correlation coefficient and the physical and chemical parameter of the liquid matrix, and is configured for retrieving the correlation coefficient from the comparison table according to the physical and chemical parameter of the liquid matrix.

9. The aerosol generation system according to claim 7 , wherein the physical and chemical parameter comprises at least one of the substance composition, viscosity, specific heat or vaporization efficiency of the liquid matrix.

10. The aerosol generation system according to claim 7 , wherein the information memory unit comprises at least one of EPROM, EEPROM, NFC label, bar code and QR code.

11. The aerosol generation system according to claim 6 , wherein the information memory unit further stores the known initial amount of the liquid matrix stored in the liquid storage cavity.

12. The aerosol generation system according to claim 1 , further comprising an output device, which is configured for indicating the consumption of the liquid matrix in the time period or presenting the remaining amount of the liquid matrix inside the liquid storage cavity.

13. The aerosol generation system according to claim 1 , wherein the vaporization element comprises at least one heating element, which is configured for heating the liquid matrix to form an aerosol; and
the aerosol generation system further comprises: a capillary core, which is configured for conveying the liquid matrix to the heating element from the liquid storage cavity.

14. A measurement method of an aerosol generation system for consumption of a liquid matrix, wherein the aerosol generation system co

Assignees

• Shenzhen First Union Tech Co

Inventors

• Li Junjie
• Xu Zhongli
• Li Yonghai

Classifications

• A24F40/60

  Devices with integrated user interfaces · CPC title

• A24F40/51

  Arrangement of sensors · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• A24F40/53 Primary

  Monitoring, e.g. fault detection · CPC title

• A24F40/50 Primary

  Control or monitoring · CPC title