ELECTRONIC VAPORIZATION DEVICE, POWER SUPPLY MECHANISM, AND METHOD FOR IDENTIFYING VAPORIZER

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202110284535.6, filed with the China National Intellectual Property Administration on Mar. 16, 2021 and entitled “ELECTRONIC VAPORIZATION DEVICE, POWER SUPPLY MECHANISM, AND METHOD FOR IDENTIFYING VAPORIZER”, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

Embodiments of this application relate to the field of electronic vaporization technologies, and in particular, to an electronic vaporization device, a power supply mechanism, and a method for identifying a vaporizer.

BACKGROUND

Tobacco products (such as cigarettes, cigars, and the like) burn tobacco during use to produce tobacco smoke. Attempts are made to replace these tobacco-burning products by manufacturing products that release compounds without burning tobacco.

An example of this type of products is an electronic vaporization product, which vaporize a liquid substrate by heating to produce an inhalable vapor or aerosol. The liquid substrate may contain nicotine, and/or aromatics, and/or aerosol-generation substances (such as glycerin). Such frequently used electronic vaporization product is a modular construction and usually includes a replaceable vaporizer. The replaceable vaporizer has a storage component configured to accommodate the liquid substrate. The liquid substrate stored in the vaporizer may vary significantly in composition, taste, concentration, or another property, and consumers may wish to interchange the vaporizer at will. However, an optimal vaporization condition may depend on composition of the liquid substrate stored in the vaporizer. Therefore, it is desirable to include an automatic identification device in the vaporizer that can identify the replaceable vaporizer or the liquid substrate stored therein, to automatically change control settings for a vaporization device accordingly.

SUMMARY

An embodiment of this application provides an electronic vaporization device, including a vaporizer configured to vaporize a liquid substrate to generate an aerosol, and a power supply mechanism configured to supply power to the vaporizer. The vaporizer includes a heating element configured to heat and vaporize the liquid substrate. The power supply mechanism includes:

- a core, configured to supply power to the heating element; and
- a controller, configured to identify the vaporizer based on electric power provided by the core to the heating element and a resistance change generated by the heating element.

In a preferred embodiment, the controller is configured to:

- determine a TCR value of the heating element based on electric power provided by the core to the heating element and a resistance change generated by the heating element; and
- identify the vaporizer based on the TCR value of the heating element.

In a preferred embodiment, the resistance change includes a change curve of a resistance of the heating element with time.

In a preferred implementation, the resistance change includes a resistance change rate of the heating element.

In a preferred implementation, the resistance change includes a resistance value when the resistance of the heating element rises to be substantially constant, or a difference between the resistance value and an initial resistance value.

In a preferred embodiment, the controller is configured to:

- compare the resistance change of the heating element with a threshold range and change the electric power provided by the core to the heating element based on a comparison result.

In a preferred embodiment, the controller is configured to:

- compare a resistance change rate of the heating element or a resistance variation within a preset time with a threshold range, and prevent the core from supplying power to the heating element when the resistance change rate or the resistance variation is greater than a maximum value of the threshold range or less than a minimum value of the preset threshold range.

In a preferred embodiment, the controller is configured to:

- raise a resistance of the heating element to a substantially constant resistance value or compare a difference between the resistance value and an initial resistance value with a threshold range, and prevent the core from supplying power to the heating element when the resistance value or the difference is greater than a maximum value of the threshold range or less than a minimum value of the preset threshold range.

In a preferred embodiment, the core is configured to provide predetermined electric power to the heating element.

In a preferred embodiment, the core is configured to supply power to the heating element in a manner of constant power output.

Another embodiment of this application further provides a power supply mechanism, configured to supply power to a vaporizer of an electronic vaporization device, where the vaporizer includes a heating element configured to heat and vaporize a liquid substrate to generate an aerosol; the power supply mechanism includes:

- a core, configured to supply power to the heating element; and
- a controller, configured to identify the vaporizer based on electric power provided by the core to the heating element and a resistance change generated by the heating element.

Another embodiment of this application further provides a method for identifying a vaporizer, where the vaporizer includes a heating element configured to heat and vaporize a liquid substrate to generate an aerosol; and the method includes following steps of:

supplying power to the heating element, and identifying the vaporizer based on an electric power provided to the heating element and a resistance change generated by the heating element.

Through the electronic vaporization device, the vaporizer can be automatically identified by detecting the resistance change of the heating element under electric power.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described with reference to the corresponding figures in the accompanying drawings, and the descriptions are not to be construed as limiting the embodiments. Elements in the accompanying drawings that have same reference numerals are represented as similar elements, and unless otherwise particularly stated, the figures in the accompanying drawings are not drawn to scale.

FIG. 1 is a schematic structural diagram of an electronic vaporization device according to an embodiment of this application.

FIG. 2 is a schematic cross-sectional view of an embodiment of a vaporizer in FIG. 1.

FIG. 3 is a schematic structural diagram of a porous body in FIG. 2 from a perspective.

FIG. 4 is a schematic structural diagram of a porous body in FIG. 2 from another perspective;

FIG. 5 is a schematic cross-sectional view of another embodiment of a vaporizer in FIG. 1.

FIG. 6 is a schematic diagram of a resistance detection circuit according to an embodiment.

FIG. 7 is a curve showing a resistance change of a heating element of a vaporizer during continuous inhalation representing that a user inhales once according to an embodiment.

FIG. 8 is a curve showing a resistance change of heating elements of a plurality of vaporizers during continuous inhalation representing that a user inhales once according to an embodiment.

FIG. 9 is a schematic diagram of a resistance change rate of heating elements within a predetermined time of a plurality of vaporizers in FIG. 8.

DETAILED DESCRIPTION

For ease of understanding of this application, this application is described below in more detail with reference to the accompanying drawings and specific implementations.

This application provides an electronic vaporization device. Referring to FIG. 1, the electronic vaporization device includes: a vaporizer 100, configured to store a liquid substrate and vaporize the liquid substrate to generate an aerosol; and a power supply mechanism 200, configured to supply power to the vaporizer 100.

In an optional implementation, for example, as shown in FIG. 1, the power supply mechanism 200 includes a receiving cavity 270, arranged at an end in a length direction and configured to receive and accommodate at least a part of the vaporizer 100; and a first electrical contact 230, at least partially exposed on a surface of the receiving cavity 270, and configured to be electrically connected to the vaporizer 100 to supply power to the vaporizer 100 when at least a part of the vaporizer 100 is received and accommodated in the power supply mechanism 200.

According to a preferred implementation shown in FIG. 1, a second electrical contact 21 is arranged on an end portion of the vaporizer 100 opposite to the power supply mechanism 200 in the length direction, so that when the at least a part of the vaporizer 100 is received in the receiving cavity 270, the second electrical contact 21 is in contact with and abuts against the first electrical contact 230 to form an electrical connection.

A seal member 260 is arranged in the power supply mechanism 200, and at least a part of an internal space of the power supply mechanism 200 is separated by the seal member 260 to form the receiving cavity 270. In the preferred implementation shown in FIG. 1, the seal member 260 is configured to extend along a cross section direction of the power supply mechanism 200, and is preferably prepared by a flexible material such as silica gel, so as to prevent the liquid substrate seeping from the vaporizer 100 to the receiving cavity 270 from flowing to a controller 220, a sensor 250, and another component inside the power supply mechanism 200.

In the preferred implementation shown in FIG. 1, the power supply mechanism 200 further includes a core 210, configured to supply power and facing away from the receiving cavity 270 along a length direction; and a controller 220, arranged between the core 210 and an accommodating cavity, where the controller 220 operably guiding a current between the core 210 and the first electrical contact 230.

The power supply mechanism 200 includes the sensor 250, which is configured to sense an inhalation flow generated by the vaporizer 100 during inhalation, so that the controller 220 controls the core 210 to output the current to the vaporizer 100 based on a detection signal of the sensor 250.

Further, in the preferred implementation shown in FIG. 1, a charging interface 240 is arranged on another end of the power supply mechanism 200 facing away from the receiving cavity 270, and is configured to supply power to the core 210.

Embodiments in FIG. 2 to FIG. 4 are schematic structural diagrams of an embodiment of the vaporizer 100 in FIG. 1, which includes a main housing 10, a porous body 30, and a heating element 40.

As shown in FIG. 2, the main housing 10 is substantially in a flat cylindrical shape, and certainly, a hollow interior of the main housing is a necessary functional device configured to store and vaporize the liquid substrate. A suction nozzle A configured to inhale an aerosol is arranged on an upper end of the main housing 10.

A liquid storage cavity 12 configured to store the liquid substrate is arranged on an interior of the main housing 10. In a specific embodiment, a vapor-gas transmission pipe 11 in an axial direction is arranged inside the main housing 10, and the liquid storage cavity 12 configured to store the liquid substrate is formed in a space between an outer wall of the vapor-gas transmission pipe 11 and an inner wall of the main housing 10. An upper end of the vapor-gas transmission pipe 11 opposite a proximal end 110 is in communication with the suction nozzle port A.

The porous body 30 is configured to obtain the liquid substrate in the liquid storage cavity 12 through a liquid channel 13, and the liquid substrate is transmitted as indicated by arrow R1 in FIG. 2. The porous body 30 includes a flat vaporization surface 310. The vaporization surface 310 is formed with the heating element 40 that heats at least part of the liquid substrate absorbed by the porous body 30 to generate the aerosol.

Specifically, referring to FIG. 3 and FIG. 4, a side of the porous body 30 facing away from the vaporization surface 310 is in fluid communication with the liquid channel 13 to absorb the liquid substrate, and then transfer the liquid substrate to the vaporization surface 310 to heat and vaporize.

After assembly, two ends of the heating element 40 abut against the second electrical contact 21 to conduct electricity, and the heating element 40 heats at least part of the liquid substrate of the porous body 30 to generate the aerosol during electrification. In an optional implementation, the porous body 30 includes flexible fibers, such as cotton fibers, non-woven fabrics, glass fiber ropes, or includes porous ceramics with a microporous structure, such as porous ceramics in shapes shown in FIG. 3 and FIG. 4, and the specific structures can be found in patent CNCN212590248U.

The heating element 40 may be combined onto the vaporization surface 310 of the porous body 30 through printing, deposition, sintering, physical assembly, or the like. In some other variant embodiments, the porous body 30 may have a flat or curved surface for supporting the heating element 40, and the heating element 40 is formed on the flat or curved surface of the porous body 30 through mounting, printing, deposition, and the like.

The heating element 40 is made of a metal material with an appropriate impedance, a metal alloy, graphite, carbon, conductive ceramic, or another composite material of a ceramic material and a metal material. A suitable metal or alloy material includes at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, titanium alloy, iron-manganese-aluminum based alloy, or stainless steel. The resistive material of the heating element 40 can select a metal or alloy material having a suitable resistance temperature coefficient, such as a positive temperature coefficient or a negative temperature coefficient, so that a heating circuit can be configured to generate heat and can be configured as a sensor for sensing real-time temperature of a vaporization component.

FIG. 5 shows a schematic structural diagram of a vaporizer 100a according to another embodiment. The porous body 30a is configured in a shape of a hollow columnar extending in a longitudinal direction of the vaporizer 100a, and the heating element 40a is formed in a columnar hollow of the porous body 30a. In use, as represented by arrow R1, the liquid substrate of the liquid storage cavity 20a is absorbed along an outer surface of the porous body 30a in a radial direction, and then transmitted to the heating element 40a on an inner surface to heat and vaporize to generate an aerosol; and the generated aerosol is outputted from the columnar hollow of the porous body 30a along a longitudinal direction of the vaporizer 100a.

In order to distinguish whether the replaced vaporizer 100/100a is an adaptive type, the resistance change of the heating element 40/40a in operation is detected by the controller 220 in an embodiment of this application, to identify and determine the vaporizer 100/100a.

Generally, different vaporizers 100/100a have heating elements 40/40a with different materials or models. Therefore, during heating, due to different initial resistance values and the respective material TCR (temperature coefficient of resistance), the resistance changes during heating are significantly different. In this way, the vaporizer 100/100a can be identified and determined based on the resistance change.

Further, in order to enable the power supply mechanism 200 to detect the resistance change of the heating element 40/40a in real time, the power supply mechanism 200 further includes a resistance detection circuit for detecting the resistance value of the heating element 40/40a. A structure of the resistance detection circuit in a conventional embodiment is shown in FIG. 6, including:

a standard resistor R1, configured to construct a voltage dividing circuit connected in series with the connected heating element 40/40a, where the voltage dividing circuit connected in series is turned on and grounded by a switch tube Q1 to form a circuit. In this case, the controller 220 may calculate the resistance value of the heating element 40/40a by sampling a voltage to ground Vabc of the standard resistor R1 and then through a formula of a partial pressure.

Certainly, other resistors R2, R3, and R4 in the circuit shown in FIG. 6 are normal basic conventional functions such as voltage reduction and current limiting.

In another variant embodiment, the resistance detection circuit may further use a constant current source. When the vaporizer 100/100a is coupled to the power supply mechanism 200 to couple the heating element 40/40a to the circuit, the constant current source provides a constant current detection current to the heating elements 40/40a. The controller 220 samples the voltage of the heating element 40/40a at the constant current through a sampling pin, and then obtains the resistance value of the heating element 40/40a after calculation.

For example, FIG. 7 shows a curve showing a resistance change of a heating element 40 of a vaporizer 100 during continuous inhalation representing that a user inhales once according to an embodiment. According to the test curve, each unit of the time axis is 60 ms, and the total detected data sampling time is 60×60=3600 ms=3.6 s. During the test, an initial resistance value of the heating element 40 is 1.1 ohms, and the power output of the power supply mechanism 200 to the heating element 40 is constant at 10 W (generally, the output voltage of the core 210 in the electronic vaporization device in the art is 3.5 V after being fully charged. Combined with an actual output effective voltage of about 3.2 V and a heat loss, setting the output power to be constant at 10 W is the most commonly used constant power output value). In the curve of FIG. 7, the resistance value change of the heating element 40 includes three stages.

S1 first stage: It is an initial heating stage. The heating element 40 starts to heat up rapidly from a room temperature, and at the same time, the temperature has not been raised above a boiling point of the liquid substrate; and most of the heat at this stage is absorbed by the heating element 40, and correspondingly, the resistance value of the heating element 40 also increases rapidly due to the TCR.

S2 second stage: During this stage, the heating element 40 continues to heat up, and part of the heat of the heating element 40 is absorbed by a low-boiling component (such as propylene glycol, and a flavor component) in the liquid substrate to form the aerosol. In this stage, a resistance raising efficiency of the heating element 40 gradually decreases.

S3 third stage: In this stage, since the temperature of the heating element 40 rises to the temperature at which the liquid substrate is vaporized in large quantities, the heating efficiency of the heating element 40 is balanced with a vaporization efficiency of the liquid substrate; and in this stage, the resistance value of the heating element 40 is substantially constant and fluctuates in a generally small range until an end of the inhalation.

In the above changes in the actual resistance detected in conjunction with specific embodiments, a significant increase in resistance can be expressed as the resistance variation per unit time (that is, a slope of a tangent of the curve) or the increase in the resistance value beyond a certain reference threshold, that is, the resistance is considered to have risen significantly.

In order to identify and distinguish different vaporizers 100, the following show the sampling results of the resistance value of the heating element 40 in the power supply test performed by the power supply mechanism 200 to five different vaporizers 100 at a constant power of 7 W, respectively. Certainly, to eliminate an error of a single sampling of the sampling detection result of the vaporizer 100 of each embodiment, the sampling of the vaporizer 100 in each embodiment is performed in two repetitions, which are denoted as “sample 1” and “sample 2” respectively. The specific sampling results are as follows, and the sampling results of each embodiment in the following table are averaged, and the resistance change curve with time is obtained by fitting as shown in FIG. 8.

TABLE 1

Sampling resistance value/mΩ

Sampling
Embodiment 1
Embodiment 2
Embodiment 3
Embodiment 4
Embodiment 5

time/ms
Sample 1
Sample 2
Sample 1
Sample 2
Sample 1
Sample 2
Sample 1
Sample 2
Sample 1
Sample 2

0
752
758
757
760
750
754
717
724
710
713

20
916
911
860
859
856
851
814
830
801
810

80
912
919
870
869
852
859
806
821
798
816

140
913
929
884
882
853
868
821
839
806
824

200
915
928
885
889
855
867
834
848
810
827

260
933
933
888
889
872
872
831
844
813
836

320
923
933
893
895
863
872
841
849
817
836

380
938
942
897
897
877
880
842
858
832
831

440
942
945
898
895
880
883
850
852
836
842

500
941
941
900
912
879
879
849
846
826
843

560
943
956
910
907
881
893
855
853
837
839

620
954
950
911
914
892
888
847
848
838
844

680
945
945
907
907
883
883
854
865
830
847

740
957
950
911
917
894
888
860
863
836
847

800
949
959
912
915
887
896
852
860
834
848

860
964
964
916
918
901
901
861
864
843
844

920
959
954
918
918
896
892
860
870
844
845

980
950
956
917
916
888
893
852
860
838
855

1040
961
963
924
920
898
900
853
869
845
842

1100
956
957
915
929
893
894
859
868
837
842

1160
963
962
920
929
900
899
856
877
846
843

1220
970
967
919
921
907
904
858
864
843
852

1280
964
972
927
931
901
908
869
869
844
846

1340
965
970
922
923
902
907
858
869
848
852

1400
961
974
923
927
898
910
859
868
841
858

1460
958
961
932
925
895
898
864
876
846
857

1520
966
969
928
924
903
906
866
871
844
858

1580
968
974
928
924
905
910
869
881
844
852

1640
977
979
926
932
913
915
871
877
852
855

1700
969
976
923
923
906
912
872
880
845
852

1760
968
972
936
934
905
908
864
872
840
850

1820
969
974
938
923
906
910
867
883
844
852

1880
966
980
936
929
903
916
859
884
848
854

1940
974
975
934
927
910
911
862
873
851
849

2000
969
967
927
927
906
904
874
876
850
846

2060
976
968
933
931
912
905
868
866
850
844

2120
972
979
934
930
908
915
871
877
852
848

2180
979
968
931
931
915
905
869
868
847
850

2240
972
978
926
923
908
914
864
872
857
853

2300
962
984
930
925
899
920
867
878
842
858

2360
978
984
933
935
914
920
872
864
853
846

2420
981
973
930
929
917
909
875
874
850
851

2480
973
977
927
925
909
913
868
873
858
846

2540
973
980
936
929
909
916
867
873
856
847

2600
974
970
933
937
910
907
866
867
855
849

2660
972
980
932
935
908
916
874
874
850
845

2720
972
973
927
929
908
909
869
871
857
843

2780
985
975
932
929
921
911
864
876
842
852

2840
980
969
934
933
916
906
869
871
853
855

2900
980
979
926
932
916
915
866
879
842
843

2960
976
976
935
935
912
912
862
877
845
846

3020
969
977
926
931
906
913
866
873
845
852

3080
982
977
929
926
918
913
868
877
841
841

3140
989
966
928
934
924
903
873
868
854
850

3200
987
980
934
926
922
916
876
870
844
849

3260
984
968
932
934
920
905
869
869
845
853

3320
973
972
922
926
909
908
873
879
844
850

3380
973
976
935
929
909
912
871
879
852
855

3440
976
967
938
931
912
904
874
865
849
849

3500
985
979
924
933
921
915
875
877
848
841

3560
980
975
929
936
916
911
882
873
845
850

3620
975
978
925
928
911
914
884
871
847
844

3680
983
970
928
925
919
907
888
872
849
848

3740
968
980
929
930
905
916
880
869
854
848

3800
982
978
925
929
918
914
881
878
846
844

3860
970
970
931
932
907
907
873
870
845
845

3920
969
980
924
926
906
916
887
880
854
853

3980
988
982
929
927
923
918
889
873
844
848

4040
974
974
932
928
910
910
872
878
852
844

4100
978
985
929
933
914
921
877
867
846
847

4160
983
973
937
930
919
909
865
878
848
849

4220
981
972
931
924
917
908
878
868
841
847

4280
979
979
927
932
915
915
874
869
852
846

4340
969
972
929
936
906
908
872
874
854
843

4400
978
980
934
928
914
916
878
875
848
856

4460
983
980
930
928
919
916
867
872
852
844

4520
975
972
924
934
911
908
874
869
842
843

4580
968
976
937
934
905
912
871
878
845
847

4640
976
970
938
936
912
907
874
871
853
847

4700
982
980
937
923
918
916
864
875
843
855

4760
978
973
925
932
914
909
878
875
853
848

4820
975
973
927
929
911
909
869
874
851
841

4880
970
978
937
929
907
914
877
871
847
855

4940
967
970
924
928
904
907
871
869
852
849

5000
972
966
927
921
908
903
869
875
849
846

5060
972
981
931
925
908
917
866
868
848
848

5120
979
972
927
930
915
908
878
867
845
851

5180
976
979
931
930
912
915
869
863
854
860

5240
967
969
930
925
904
906
871
865
842
856

5300
974
979
935
934
910
915
872
875
845
851

5360
980
972
929
924
916
908
880
876
851
856

5420
984
972
933
933
920
908
873
879
849
846

5480
972
985
936
936
908
921
881
879
851
857

5540
972
973
927
935
908
909
871
871
851
856

5600
972
984
936
931
908
920
877
878
847
849

As can be seen from Table 1 and FIG. 8 above, the difference between the two replicates of the vaporizer 100 and the “sample 1” and “sample 2” in each embodiment is less than 1% of the sampled data, and the sampling error can be considered to meet the requirements. If the data is required to have high accuracy, more sampling times can be added, and then it is desirable to combine the above “sample 1” and “sample 2” data to take the average value as the detection result.

Further, according to Table 1 above, an average initial resistance value of the heating element 40 of the vaporizer 100 of Embodiment 1 is 0.75 mΩ, an average initial resistance value of the heating element 40 of the vaporizer 100 of Embodiment 2 is 0.75 mΩ, an average initial resistance value of the heating element 40 of the vaporizer 100 in Embodiment 3 is 0.75 mΩ, an average initial resistance value of the heating element 40 of the vaporizer 100 in Embodiment 4 is 0.71 mΩ, and an average initial resistance value of the heating element 40 of the vaporizer 100 in Embodiment 5 is 0.71 mΩ. The initial values of the heating element 40 in Embodiment 1 to Embodiment 3 are basically the same; and the initial values of the heating elements 40 of Embodiment 4 and Embodiment 5 are basically the same.

Further, the material of the heating element 40 of the vaporizer 100 in Embodiment 1 is prepared by FeSi15 (FeSi alloy containing Si 15%) with the TCR value of 1443 ppm; the material of the heating element 40 of the vaporizer 100 in Embodiment 2 is prepared by FeSi10 with the TCR value of 1245 ppm; the material of the heating element 40 of the vaporizer 100 in Embodiment 3 is prepared by a stainless steel 304 with the TCR value of 1038 ppm; the material of the heating element 40 of the vaporizer 100 in Embodiment 4 is prepared by a stainless steel 317L with the TCR value of 956 ppm; and the material of the heating element 40 of the vaporizer 100 in Embodiment 5 is prepared by NiCr30Si1.45 alloy with a TCR value of 890 ppm.

FIG. 8 shows the resistance value-time curve of the samples from Embodiment 1 to Embodiment 5. As can be clearly seen from FIG. 8, the vaporizer 100 in each embodiment has different TCR values for the heating elements 40 in the inhalation test, so that in the process of vaporizing the liquid substrate to generate the aerosol in the constant power output mode normally used in the art, the resistance varies differentially. As a result, the above resistance value-time curve or the rate of the resistance value can be used for identifying and distinguishing different vaporizers 100.

Further, during testing the vaporizer 100 in each embodiment, the electric power supplied to the electric power by the core 210 is predetermined; and at the same time, in order to ensure that the detection results are not affected due to the different electric power supplied, the predetermined electric power supplied to the vaporizers is the same.

Further, the controller 220 stores a threshold range that is most adaptive for the resistance change of the heating element 40 in the vaporizer 100; and the sampled value of the resistance change obtained by sampling is compared with the stored threshold range based on the detection process, and it can be identified and determined whether the currently replaced vaporizer 100 is the most suitable vaporizer 100 by the comparison result. At the same time, when the above comparison results are inconsistent, the controller 220 prevents the core 210 from providing power to the vaporizer 100.

Further, in a preferred embodiment, the controller 220 can further calculate and obtain the TCR value of the heating element 40 based on the resistance change of the heating element 40 during operation, and then identify and determine whether the currently replaced vaporizer 100 is a suitable or adaptive vaporizer 100 based on the TCR value.

Further, according to the sampling data of FIG. 8 and the table above, it can be seen that for different vaporizers 100 at constant power, the resistance value of the heating element 40 is raised to be substantially constant, and/or the difference between the resistance value and the initial resistance value when the heating element 40 is raised to be substantially constant is different, which is caused by different TCRs. Further, in another embodiment, the controller 220 may identify and distinguish different vaporizers 100 based on the resistance value and/or the rise amplitude or difference when the heating element 40 is raised to substantially constant.

Further, as can be seen from the sampling data in FIG. 8 and the table above, at constant power for different vaporizers 100, the resistance change rate is also different due to the different TCRs, and the resistance change rate of the heating element 40 within a predetermined time is different. As a result, the controller 220 can identify and distinguish different vaporizers 100 according to the resistance change rate of the heating element 40 during a predetermined time. For example, FIG. 9 shows a schematic diagram of identifying a vaporizer 100 by a period of time from 0 ms to 2000 ms at a predetermined time. According to FIG. 9, the resistance change curves corresponding to the vaporizer 100 of different embodiments during this time period correspond to those shown in L1 to L5, respectively. In addition, slopes of the resistance change curve L1 to L5 of the vaporizer 100 in different embodiments when being raised from the initial value to basically stable are significantly different, and then different vaporizers 100 can be identified and distinguished by calculating the slopes.

In another optional embodiment, the above predetermined time may also select another time period such as 500 ms to 1600 ms, 300 ms to 1200 ms, and the like.

Based on the above, another embodiment of this application further a method for identifying and distinguishing different vaporizers 100, which includes the following steps.

S10: Determine, based on a relationship between the power supplied to the heating element 40 of the vaporizer 100 and a resulting change in the resistance value of the heating element 40, information of the vaporizer 100.

In the process of providing the above power, according to the conventional embodiments of the products in the art, in a more preferred embodiment, the power is supplied to the heating element 40 in a constant power output manner. In a more preferred embodiment, the power provided to the vaporizer 100 in the process of identifying and distinguishing different vaporizers 100 above is the same as the output power set by the power supply mechanism 200 during the inhalation process, such as a constant power of 7 W or 10 W as described above.

Further, in a preferred embodiment, the detection method and step as described above are performed during a first puff after the user connects the vaporizer 100 to the power supply mechanism 200, which avoids a case in which the step as described above is automatically performed during a non-puffing process to supply power to the vaporizer 100 so that smoke generated is not inhaled by the user.

Further, the resistance temperature coefficient of the heating element 40 is determined based on the relationship between the power supplied to the heating element 40 of the vaporizer 100 and the resulting change in the resistance value of the heating element 40, the temperature coefficient of the resistance value is compared with the stored threshold range, and the vaporizer 100 is determined based on the comparison result.

The content of Identifying and distinguishing the vaporizer 100 includes: a liquid substrate type, a heating mode, an anti-counterfeiting information, and the like. Further, the power supply mechanism 200 may prevent the core 210 from outputting power when the content identified above does not match the vaporizer 100 acceptable to the power supply mechanism 200.

Further, based on comparing the change in the resistance value generated by the heating element 40 within a predetermined time with the preset threshold, the power provided by the core 210 to the heating element 40 is changed or adjusted based on the comparison result. In an optional embodiment, changing or adjusting the power provided by the core 210 to the heating element 40 may prevent power to the vaporizer 100 when the comparison result exceeds a maximum or minimum value of a preset threshold. Alternatively, in a further optional embodiment, a plurality of preset thresholds are included, and each preset threshold corresponds to a different optimal heating curve or power; and According to the comparison results, the core 210 can be further changed or adjusted accordingly to supply power to the vaporizer 100 with an optimal heating curve or power, respectively.

It should be noted that the specification and the accompanying drawings of this application provide preferred embodiments of this application, but is not limited to the embodiments described in this specification. Further, a person of ordinary skill in the art may make improvements or modifications according to the foregoing descriptions, and all the improvements and modifications shall fall within the protection scope of the appended claims of this application.

ELECTRONIC VAPORIZATION DEVICE, POWER SUPPLY MECHANISM, AND METHOD FOR IDENTIFYING VAPORIZER

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