Heating method of aerosol generator and control circuit thereof
阅读说明：本技术 气雾发生器加热的方法及其控制电路 (Heating method of aerosol generator and control circuit thereof ) 是由 胡廷东 彭争战 李建伟 于 2020-07-13 设计创作，主要内容包括：本发明提供了一种气雾发生器加热的方法及其控制电路,其包括：在一个周期T内采用从A-B、然后从B-A对加热部件通电或者交叉供电,可以使加热部件热量分布均匀,防止与加热部件装配的导油棉的局部温度过高烧焦,此种方式加热部件加热均匀,延长了雾化器的寿命；于此同时电场力呈现正、负方向交替进行,可以周期性刷新加热部件,保证清洁,口感的纯正。(The invention provides a heating method of an aerosol generator and a control circuit thereof, comprising the following steps: in a period T, the heating parts are electrified or cross-powered from A-B and then from B-A, so that the heat of the heating parts can be uniformly distributed, and the local temperature of the oil guide cotton assembled with the heating parts is prevented from being too high and scorched; meanwhile, the electric field force is alternately carried out in positive and negative directions, the heating part can be periodically refreshed, cleanness is guaranteed, and the taste is pure.)
1. A method of heating an aerosol generator, comprising the steps of:
a. providing a heating part, defining the heating part to be provided with two ends AB, wherein the current flows from A to B in a positive direction, and the current flows from B to A in 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.
2. The method of claim 1, wherein the heating comprises: 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.
3. The method of claim 1, wherein the heating comprises: 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.
4. A method of heating an aerosol generator according to claim 3, wherein: 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.
5. A method of heating an aerosol generator according to claim 3, wherein: the output voltage, 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.
6. A control circuit for heating of 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;
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.
7. The aerosol generator heating control circuit of claim 6, wherein: the dc voltage/dc current includes a boost control circuit.
8. The aerosol generator heating control circuit of claim 6, wherein: the load is a heating element.
Technical Field
The invention relates to a heating method of an aerosol generator and a control circuit thereof.
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.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a heating method of an aerosol generator and a control circuit thereof, which have the characteristics of prolonging the service life of an atomizer, balancing the temperature and preventing carbon deposition.
The invention is realized by the following steps: 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 heating part is electrified in a positive direction and a negative direction in an alternating mode in one period T, so that the heat of the heating part is uniformly distributed, the local over-high temperature scorching of the oil guide cotton assembled with the heating part is prevented, and the service life of the atomizer is prolonged; 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 used in the description of the embodiments or the prior art will be briefly described below, and 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 creative efforts.
FIG. 1 is a diagram illustrating a background art according to 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 diagram of a circuit provided by an embodiment of the invention;
FIG. 4 is a block diagram of a circuit provided by an embodiment of the invention;
FIG. 5 is a schematic diagram of a heating element, a power direction and a corresponding electric field according to an embodiment of the invention;
FIG. 6 is a comparative schematic diagram of voltage regulation provided by an embodiment of the present invention;
FIG. 7 is a comparative schematic diagram of current frequency adjustment provided by an embodiment of the present invention;
fig. 8 is a schematic diagram comparing the width adjustment provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, an embodiment of the present invention provides a method for heating an aerosol generator and a control circuit thereof, and the 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
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 for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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