CN212937927U - Control circuit of aerosol generator - Google Patents
Control circuit of aerosol generator Download PDFInfo
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- CN212937927U CN212937927U CN202021374624.7U CN202021374624U CN212937927U CN 212937927 U CN212937927 U CN 212937927U CN 202021374624 U CN202021374624 U CN 202021374624U CN 212937927 U CN212937927 U CN 212937927U
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Abstract
The utility model provides a control circuit of aerosol generator can make load heat distribution even, prolongs the life-span of atomizer, prevents that the carbide from accumulating on the load surface, and it includes: the first input end is connected with a first node through a first switch tube, and the first node is grounded through a second switch tube; the second input end is connected with a second node through a third switching tube, the second node is grounded through a fourth switching tube, and a load is connected between the first node and the second node; the control module is respectively connected with the first switching tube, the second switching tube, the third switching tube and the fourth switching tube to control the conduction and the disconnection of the first switching tube, the second switching tube, the third switching tube and the fourth switching tube; a DC voltage/DC current connected to the first input terminal and the second input terminal; and the voltage-stabilizing power supply unit is respectively connected with the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube so as to provide voltage for normal work of the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube.
Description
Technical Field
The utility model relates to a control circuit of aerosol generator.
Background
At present, the electronic cigarette is deeply loved by smokers as a substitute of tobacco, and mainly comprises an atomizer, an oil storage bin, a cigarette holder, a power supply and a circuit board, wherein the power supply is connected with the circuit board, the circuit board is connected with the atomizer, the atomizer comprises oil guide cotton and a heating wire wound with the oil guide cotton, the power supply supplies electric energy to the heating wire, the oil guide cotton is used for adsorbing tobacco tar in the oil storage bin, the heating wire atomizes the tobacco tar adsorbed by the oil guide cotton, and the atomized tobacco tar flows out of the cigarette holder and is sucked by people. The heating wire is generally powered by low-voltage direct current, and the current flow direction is also fixed, as shown in fig. 1, from microscopic analysis, the current flows from M to N, the MN section heating wire is refined, the heating wire itself can be regarded as a resistor, the current first slowly heats up in the direction close to M, i.e. along the current direction, for example, as follows, the MM1 section heats up first, then the current flows to N point, the M1M2 section starts to heat up, then the M2M3 section heats up, then the M3M4 section heats up, and finally the N point heats up, the heating wire generates heat after being powered on, the order of MM1, M1M2, M2M3, M3M4 … …, and finally reaches the N point, which results in that the heating wire temperature near the M point is high, i.e. along the MN direction, the temperature gradient shows a descending order, the temperature distribution is uneven, and the oil guiding near the M point is burnt, and the oil guiding at the N point may be in a good state, but part of the oil guide cotton is damaged, so that the atomizer is scrapped, and the service life of the atomizer is reduced.
When the heating wire is used for a long time, carbide is generated, the current of the heating wire is from M to N, the direction of an electric field of the fixed heating wire is from M to N, once the carbide is generated on the surface of the heating wire, part of the carbide is charged due to the existence of the electric field in the fixed direction, the carbide is adsorbed on the surface of the heating wire and is always in a state of being overstocked and accumulated, and finally the heating wire is damaged.
Therefore, in view of the above problems, it is necessary to redesign an aerosol generating device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a control circuit of aerosol generator, it has the characteristics of extension atomizer life, temperature equilibrium, prevent the carbon deposit.
The utility model discloses a realize like this: a method of aerosol generator heating comprising the steps of:
a. providing a heating part, defining the heating part to be provided with two ends AB, defining the current to flow from A to B as a positive direction, and defining the current to flow from B to A as a negative direction;
b. a direct current/direct voltage is provided which energizes the heating member in alternating positive and negative directions during a period T.
The one period of 0 to T is defined as one period T, and includes the energization period 0 to T1 in the positive direction and the energization period T1 to T2 in the negative direction within the period T.
Defining a time period of 0-T as a period T, wherein the period T comprises a first section 0-T1, and in the interval of the first section 0-T1, there is a T1 ', the current value is 0 or decays in the interval of 0-T1 ' or T1 ' -T1, so that the current is electrified in the positive direction in the interval of the first section 0-T1, and the current value is 0 or keeps the positive direction of the current but decays in the interval of the first section 0-T1.
In the period T, the method further comprises a second section T1-T2, in the section of the second section T1-T2, a T2 ' exists, the current value is 0 or decays in the section T1-T2 ' or the section T2 ' -T2, so that the current is conducted in the negative direction in the section T1-T2, and the current value is 0 or the current negative direction is kept but the current value decays in the section T1-T2.
A control circuit for aerosol generator heating, comprising:
the first input end is connected with a first node through a first switch tube, and the first node is grounded through a second switch tube;
the second input end is connected with a second node through a third switching tube, the second node is grounded through a fourth switching tube, and a load is connected between the first node and the second node;
the control module is respectively connected with the first switching tube, the second switching tube, the third switching tube and the fourth switching tube to control the conduction and the disconnection of the first switching tube, the second switching tube, the third switching tube and the fourth switching tube;
a DC voltage/DC current connected to the first input terminal and the second input terminal;
the voltage-stabilizing power supply unit is respectively connected with the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube so as to provide voltage for normal work of the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube;
when current flows in from the first input end, the second switching tube and the third switching tube are disconnected, and the first switching tube, the load and the fourth switching tube form a loop; when current flows in from the second input end, the first switching tube and the fourth switching tube are disconnected, and the third switching tube, the load and the second switching tube form a loop.
The dc voltage/dc current includes a boost control circuit.
The load is a heating element.
The utility model adopts the positive direction and the negative direction to switch on the heating component in a mode of alternating in a period T, which can lead the heat distribution of the heating component to be even, prevent the local temperature of the oil guide cotton assembled with the heating component from being over-high and scorched, and prolong the service life of the atomizer; meanwhile, the direction of the electric field on the heating component is also in the positive direction and the negative direction, so that the carbide can be effectively prevented from accumulating on the surface of the heating component, the cleanness of the heating component is ensured, and the mouth feel of the atomized tobacco tar heated by the heating component is pure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a background art provided by an embodiment of the present invention;
fig. 2 is a block diagram of a circuit provided by an embodiment of the present invention;
fig. 3 is a schematic circuit diagram provided in an embodiment of the present invention;
fig. 4 is a block diagram of a circuit provided by an embodiment of the present invention;
fig. 5 is a schematic view of a heating element, an energizing direction and a corresponding electric field according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating voltage adjustment according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a comparison of current frequency adjustment according to an embodiment of the present invention;
fig. 8 is a schematic diagram illustrating the width adjustment according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 8, an embodiment of the present invention provides a control circuit of an aerosol generator, and a method for heating the aerosol generator is as follows.
a. Providing a heating part, defining the heating part to be provided with two ends AB, defining the current to flow from A to B as a positive direction, and defining the current to flow from B to A as a negative direction;
b. a direct current/direct voltage is provided which energizes the heating member in alternating positive and negative directions during a period T.
The one period of 0 to T is defined as one period T, and includes the energization period 0 to T1 in the positive direction and the energization period T1 to T2 in the negative direction within the period T. The method is characterized in that in a time period of 0-t1, a positive current is conducted to a heating component, in a time period of 0-t1, a positive current is conducted to a heating component, in a time period of t1-t2, a negative current is conducted to a heating component, in a time period of t1-t2, a negative current is conducted, the positive direction and the negative direction are alternately conducted, the heating component is explained in an AB section, in a time period of 0-t1, the current flows from A to B, the AB section is thinned, and the time is wirelessly expanded, so that the area generating heat gradually goes from A to B along the heating component, the heat is approximately distributed as AA1, A1A2, A2A3 and A3A4 … …, and finally reaches an N point, the front is firstly heated, and the back is slowly heated, so that the A point is easily heated, and the B point possibly does not start heating, and the heat; the direction of the current is switched, the direction of the current moves in a negative direction, the current flows from B to A, the BA section is thinned, the time is wirelessly expanded, the area generating heat slowly reaches A along the heating component from B, the heat is approximately distributed as BA4, A4A3, A3A2 and A2A1 … …, the heat is firstly heated in the front and is slowly heated later, the temperature of the A point is reduced to a certain degree compared with the current always along one direction, so that the heat at two ends of AB is higher and the temperature in the middle is lower in one period, if the length of the heating component AB is made short enough by adopting a limit method, the temperature of any point on the heating component AB is close to the same and tends to the same, but cannot be the same, since this is after all a theory that the temperature difference over the heating elements AB is always present, this method makes it possible to achieve an equalization of the temperatures of the heating elements in the first place. The temperature of the oil guide cotton in contact with the heating part tends to be balanced, so that the oil guide cotton can be prevented from being burnt due to over-high local temperature of the heating part.
In addition, when the positive direction current is applied, the electric field in the positive direction exists, at the same time, the carbide is generated due to the heating of the oil cotton, the carbide is adsorbed on the surface of the heating component under the action of the electric field, if the current direction is continuously unchanged, the more the carbide on the surface of the heating component is accumulated, the heat conduction performance of the heating component is reduced, the heating component is damaged, and the like, but if the current is changed, the direction of the electric field is reversed, at the moment, the carbide attached on the surface of the heating component is subjected to the repulsive force of the electric field, the carbide is separated from the heating component, which is equivalent to cleaning the heating component, the current direction is changed in sequence, the heating component is cleaned once, if external force is applied on the surface of the heating component again at the moment, the carbide can, are not listed any more. The principle of preventing carbon deposition is as follows:
firstly, the direction of electric field force is alternately changed, so that the current skin effect on the outer surface of the heater is not continuous, and further, air and smoke ions near the outer surface alternately vibrate;
the other is thermal field oscillation.
Defining a time period of 0-T as a period T, wherein the period T comprises a first section 0-T1, and in the interval of the first section 0-T1, there is a T1 ', the current value is 0 or decays in the interval of 0-T1 ' or T1 ' -T1, so that the current is electrified in the positive direction in the interval of the first section 0-T1, and the current value is 0 or keeps the positive direction of the current but decays in the interval of the first section 0-T1. In the period T, the method further comprises a second section T1-T2, in the section of the second section T1-T2, a T2 ' exists, the current value is 0 or decays in the section T1-T2 ' or the section T2 ' -T2, so that the current is conducted in the negative direction in the section T1-T2, and the current value is 0 or the current negative direction is kept but the current value decays in the section T1-T2. Of course, the values of t1 and t2 can be adjusted, and the values of t1 'and t 2' can also be adjusted, so that heating in the positive direction for a period of time, stopping for a period of time, heating in the negative direction for a period of time and stopping for a period of time can be sequentially realized. The sequence of heating in the positive direction in a period of time and stopping in a period of time can be replaced; the negative direction heating can be replaced after a period of time and the negative direction heating can be replaced after a period of time.
A control circuit for aerosol generator heating, comprising: the first input end 1 is connected with a first node 3 through a first switch tube, and the first node 3 is grounded through a second switch tube; a second input end 2 connected to a second node 4 through a third switching tube, the second node 4 is grounded through a fourth switching tube, and a load is connected between the first node 3 and the second node 4; the control Module (MCU) is respectively connected with the first switch tube, the second switch tube, the third switch tube and the fourth switch tube so as to control the connection and disconnection of the first switch tube, the second switch tube, the third switch tube and the fourth switch tube; the direct current voltage/direct current is connected with the first input end 1 and the second input end 2 and comprises a boost control circuit; the voltage-stabilizing power supply unit is respectively connected with the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube so as to provide voltage for normal work of the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube; when current flows in from the first input end 1, the second switching tube and the third switching tube are disconnected, the first switching tube, the load and the fourth switching tube form a loop, and the current direction flows from the first node 3 to the second node 4; when current flows in from the second input end 2, the first switching tube and the fourth switching tube are disconnected, the third switching tube, the load and the second switching tube form a loop, and the current direction flows from the second node 4 to the first node 3. Thereby realizing the switching of the current direction. The dc voltage/dc current is illustrated by taking a dc output current as an example, the dc current is connected to the first input terminal 1 and the second input terminal 2, the first input terminal 1 and the second input terminal 2 may be overlapped, and at this time, the output terminal of the dc current is connected to the common terminal of the first input terminal 1 and the second input terminal 2.
The load is a heating element. The heating component can be a heating wire, a heating sheet, a heating net and a heating resistor, the heating component is arranged in the oil guide cotton, namely the oil guide cotton is wrapped on the heating component, the oil guide cotton can replace ceramics, the oil guide piece and the like, and the heating sheet can also be wrapped on the oil guide cotton.
The output voltage of the design can be adjusted, the current and the period can be adjusted, and the time lengths of the heating section and the non-heating section and the positions of the heating section and the non-heating section can be adjusted to achieve the purpose of flexible use.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A control circuit for an aerosol generator, comprising:
the first input end is connected with a first node through a first switch tube, and the first node is grounded through a second switch tube;
the second input end is connected with a second node through a third switching tube, the second node is grounded through a fourth switching tube, and a load is connected between the first node and the second node;
the control module is respectively connected with the first switching tube, the second switching tube, the third switching tube and the fourth switching tube to control the conduction and the disconnection of the first switching tube, the second switching tube, the third switching tube and the fourth switching tube;
the direct current power supply is connected with the first input end and the second input end;
the voltage-stabilizing power supply unit is respectively connected with the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube so as to provide voltage for normal work of the control module, the first switching tube, the second switching tube, the third switching tube and the fourth switching tube;
when current flows in from the first input end, the second switching tube and the third switching tube are disconnected, and the first switching tube, the load and the fourth switching tube form a loop; when current flows in from the second input end, the first switching tube and the fourth switching tube are disconnected, and the third switching tube, the load and the second switching tube form a loop.
2. The control circuit of an aerosol generator according to claim 1, wherein: the load is a heating element.
3. The control circuit of an aerosol generator according to claim 1, wherein: the output voltage, current, period, duration of the heating section, duration of the non-heating section and the position between the two sections are variable quantities, so that the purpose of flexible use is achieved.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374624.7U CN212937927U (en) | 2020-07-13 | 2020-07-13 | Control circuit of aerosol generator |
| PCT/CN2021/105404 WO2022012424A1 (en) | 2020-07-13 | 2021-07-09 | Electric heating apparatus and power supply control method therefor |
| GB2302942.4A GB2612933A (en) | 2020-07-13 | 2021-07-09 | Electric heating apparatus and power supply control method therefor |
| US18/154,034 US20230148680A1 (en) | 2020-02-12 | 2023-01-12 | Electrical heating module and power supply control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374624.7U CN212937927U (en) | 2020-07-13 | 2020-07-13 | Control circuit of aerosol generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212937927U true CN212937927U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021374624.7U Active CN212937927U (en) | 2020-02-12 | 2020-07-13 | Control circuit of aerosol generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212937927U (en) |
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2020
- 2020-07-13 CN CN202021374624.7U patent/CN212937927U/en active Active
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