CN208550039U - A kind of electronic cigarette operating circuit and electronic cigarette - Google Patents
A kind of electronic cigarette operating circuit and electronic cigarette Download PDFInfo
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- CN208550039U CN208550039U CN201821153812.XU CN201821153812U CN208550039U CN 208550039 U CN208550039 U CN 208550039U CN 201821153812 U CN201821153812 U CN 201821153812U CN 208550039 U CN208550039 U CN 208550039U
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Abstract
The utility model discloses a kind of electronic cigarette operating circuit and electronic cigarettes, wherein electronic cigarette operating circuit includes microphone, microprocessor, driving mechanism and fever mechanism, the output end of microphone is connect with microprocessor, microprocessor is connect by driving mechanism with fever mechanism, driving mechanism includes metal-oxide-semiconductor, it further include first resistor, first metal-oxide-semiconductor, thermistor at metal-oxide-semiconductor in driving mechanism, the output end of microphone is connect by first resistor with the grid of the first metal-oxide-semiconductor, the grid of first metal-oxide-semiconductor is grounded by thermistor, the source electrode of first metal-oxide-semiconductor is grounded, the drain electrode of first metal-oxide-semiconductor and the input terminal of microprocessor connect, positive pole is connect by second resistance with the drain electrode of the first metal-oxide-semiconductor.The utility model can control the on-off relationship between microphone and microprocessor according to metal-oxide-semiconductor temperature in driving mechanism, avoid metal-oxide-semiconductor and mainboard because high temperature is burnt out, prevent PCB from deforming, extend service life, reduce use cost.
Description
Technical field
The utility model belongs to electronic cigarette technical field, in particular to a kind of electronic cigarette operating circuit and electronic cigarette.
Background technique
Existing electronic cigarette includes that (i.e. microphone jettron detects user for detecting whether there is air-flow to pass through to microphone
Whether issue aspiratory action), microprocessor, driving mechanism and fever mechanism, wherein microphone be set to electronic cigarette inlet channel
Interior, the output end of microphone is electrically connected with microprocessor, and the output end of microprocessor is electrically connected by driving mechanism with fever mechanism.
When microphone does not detect in inlet channel there is air-flow process, microphone exports low level to microprocessor.Work as microphone
Detect that microphone exports high level to microprocessor, and microprocessor controls driving mechanism and drives when having air-flow to pass through in inlet channel
Dynamic fever mechanism work, so that mechanism fever of generating heat, finally makes solid tobacco or liquid tobacco tar generate smog and suck for user.
Since driving mechanism controls whether fever mechanism works generally by the on-off of control metal-oxide-semiconductor, i.e. driving machine
It include metal-oxide-semiconductor in structure, with the growth of electronic cigarette working time, the temperature of MOS is also constantly increased, and final PCBA temperature is excessively high.
Due to that in the prior art, the on-off relationship between microphone and microprocessor will not be controlled according to metal-oxide-semiconductor temperature in driving mechanism,
As long as microphone detects that air-flow passes through, microphone will continue output high level to microprocessor, while microprocessor can continue to control
Driving mechanism driving fever mechanism processed work, eventually leads to metal-oxide-semiconductor and mainboard is burnt out by high temperature, and PCB deformation, service life is short,
Use cost is high.
Summary of the invention
The purpose of this utility model is that in view of the above shortcomings of the prior art, provide a kind of electronic cigarette operating circuit and
Electronic cigarette, when the metal-oxide-semiconductor in driving mechanism when the temperature is excessively high, end between microphone and microprocessor, microprocessor will not control
The work of driving mechanism driving fever mechanism, avoids metal-oxide-semiconductor and mainboard because high temperature is burnt out, prevents PCB from deforming, extend using the longevity
Life, reduces use cost.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of electronic cigarette operating circuit, including microphone, microprocessor, driving mechanism and fever mechanism, wherein microphone is set to
In the inlet channel of electronic cigarette, the output end of microphone is electrically connected with microprocessor, and the output end of microprocessor passes through driving mechanism
Mechanism is electrically connected with fever, and driving mechanism includes metal-oxide-semiconductor, is structurally characterized in that further include first resistor, the first metal-oxide-semiconductor, is set to
The output end of thermistor in driving mechanism at metal-oxide-semiconductor, microphone is electrically connected by first resistor with the grid of the first metal-oxide-semiconductor,
The grid of first metal-oxide-semiconductor is grounded by thermistor, the source electrode ground connection of the first metal-oxide-semiconductor, the drain electrode of the first metal-oxide-semiconductor and microprocessor
Input terminal electrical connection, positive pole is electrically connected by second resistance with the drain electrode of the first metal-oxide-semiconductor.
By above structure, under the premise of the metal-oxide-semiconductor temperature in driving mechanism is lower: when microphone does not detect air inlet
There is air-flow process in channel, microphone exports low level and the low level is passed through by first resistor, the first metal-oxide-semiconductor, thermistor group
At switching circuit so that the work of the first metal-oxide-semiconductor is in cut-off region, so that the input of microprocessor terminates high level, driving mechanism
It is failure to actuate.When microphone, which detects, has air-flow to pass through in inlet channel, microphone exports high level and the high level passes through by first
The switching circuit that resistance, the first metal-oxide-semiconductor, thermistor form generates a high level in the grid of the first metal-oxide-semiconductor, so that the
One metal-oxide-semiconductor works in saturation region, and the input terminal voltage of microprocessor becomes low level by high level.Microprocessor controls driving machine
Structure driving fever mechanism work, so that mechanism fever of generating heat, finally makes solid tobacco or liquid tobacco tar generate smog for user
It sucks.
With the growth of electronic cigarette working time, the temperature of metal-oxide-semiconductor is also constantly increased in driving mechanism, due to thermistor
At the metal-oxide-semiconductor in driving mechanism and can in awareness driven mechanism metal-oxide-semiconductor temperature variation, the resistance value of thermistor is with temperature
Variation, and the resistance value of thermistor will affect the cut-in voltage of the first metal-oxide-semiconductor grid.If the resistance value of first resistor is R1, temperature-sensitive
The resistance value of resistance is RT1, and the level of microphone output is Vmic, and the grid voltage of the first metal-oxide-semiconductor is Vg, according to formula Vg=RT1/
(RT1+R1) * Vmic is calculated, when the change in resistance of thermistor leads to minimum cut-in voltage value of the Vg less than the first metal-oxide-semiconductor,
First metal-oxide-semiconductor works in cut-off region, and microprocessor input voltage becomes high level from low level, so that driving mechanism stops driving
The work of dynamic fever mechanism.
As it can be seen that can be controlled between microphone and microprocessor according to metal-oxide-semiconductor temperature in driving mechanism in the utility model
On-off relationship, when the metal-oxide-semiconductor in driving mechanism when the temperature is excessively high, end between microphone and microprocessor, even if microphone at this time
Detect air-breathing, microprocessor will not control the work of driving mechanism driving fever mechanism, metal-oxide-semiconductor and mainboard is avoided to burn because of high temperature
It is bad, it prevents PCB from deforming, extends service life, reduce use cost.
The fever mechanism includes the first hair for being heated to air in inlet channel as a preferred method,
Hot body, the driving mechanism include 3rd resistor, the 4th resistance, the second metal-oxide-semiconductor, and the first output end of microprocessor passes through the 4th
Resistance is electrically connected with the grid of the second metal-oxide-semiconductor, and one end of 3rd resistor is electrically connected with the grid of the second metal-oxide-semiconductor, 3rd resistor
The source electrode of the other end and the second metal-oxide-semiconductor is electrically connected and grounded, and the drain electrode of the second metal-oxide-semiconductor passes through the first heater and positive pole electricity
Connection.
Further, the fever mechanism includes the second heater for being preheated to cigarette tobacco portion, the drive
Motivation structure includes the 5th resistance, the 6th resistance, third metal-oxide-semiconductor, and the second output terminal of microprocessor passes through the 6th resistance and third
The grid of metal-oxide-semiconductor is electrically connected, and one end of the 5th resistance is electrically connected with the grid of third metal-oxide-semiconductor, the other end of the 5th resistance and the
The source electrode of three metal-oxide-semiconductors is electrically connected and grounded, and the drain electrode of third metal-oxide-semiconductor is electrically connected by the second heater with positive pole.
By above structure, when thermistor detects the second metal-oxide-semiconductor and/or third metal-oxide-semiconductor temperature is higher, first
Metal-oxide-semiconductor cut-off, so that microphone can not work, microprocessor will not issue instruction control driving mechanism work, protect mainboard not by
It burns out.
It further, further include indication mechanism, the output end of microprocessor is electrically connected with indication mechanism.
Indication mechanism is used to show the working condition of fever mechanism.
It further, further include indication mechanism, the indication mechanism includes the 7th resistance, the 8th resistance, the first indicator light
With the second indicator light, the 7th resistance and the first indicator light are serially connected between positive pole and the third output end of microprocessor, the
Eight resistance and the second indicator light are serially connected between positive pole and the 4th output end of microprocessor.
When the input terminal level of microprocessor is lower by height, microprocessor by the first heater of driving mechanisms control and
Second fever body running, meanwhile, microprocessor issues instruction the first indicator light of control and second the indicator light is always on, is respectively used to refer to
Show the working condition of the first heater and the second heater.When the input terminal level of microprocessor is by low get higher, driving mechanism
Mechanism does not work with fever, meanwhile, the first indicator light and the second indicator light also extinguish.
Based on the same inventive concept, the utility model additionally provides a kind of electronics including the electronic cigarette operating circuit
Cigarette.
Compared with prior art, the utility model can control microphone and Wei Chu according to metal-oxide-semiconductor temperature in driving mechanism
Manage device between on-off relationship, when the metal-oxide-semiconductor in driving mechanism when the temperature is excessively high, end between microphone and microprocessor, even if
Microphone detects air-breathing at this time, and microprocessor will not control the work of driving mechanism driving fever mechanism, avoid metal-oxide-semiconductor and mainboard
It because high temperature is burnt out, prevents PCB from deforming, extends service life, reduce use cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of electronic cigarette operating circuit.
Wherein, 1 is microphone, and 2 be microprocessor, and 3 be driving mechanism, and 4 be fever mechanism, and 5 be indication mechanism, and 6 be first
Heater, 7 be the second heater, and RT1 is thermistor, and R1 is first resistor, and R2 is second resistance, and R3 is 3rd resistor, R4
For the 4th resistance, R5 is the 5th resistance, and R6 is the 6th resistance, and R7 is the 7th resistance, and R8 is the 8th resistance, and Q1 is the first metal-oxide-semiconductor,
Q2 is the second metal-oxide-semiconductor, and Q3 is third metal-oxide-semiconductor, and D1 is the first indicator light, and D2 is the second indicator light.
Specific embodiment
As shown in Figure 1, electronic cigarette operating circuit include microphone 1, microprocessor 2, driving mechanism 3 and fever mechanism 4,
In, microphone 1 is set in the inlet channel of electronic cigarette, and the output end of microphone 1 is electrically connected with microprocessor 2, the output of microprocessor 2
End is electrically connected by driving mechanism 3 with fever mechanism 4, and it further includes first resistor R1, the first MOS that driving mechanism 3, which includes metal-oxide-semiconductor,
The output end of pipe Q1, the thermistor RT1 at metal-oxide-semiconductor in driving mechanism 3, microphone 1 pass through first resistor R1 and the first MOS
The grid of pipe Q1 is electrically connected, and the grid of the first metal-oxide-semiconductor Q1 is grounded by thermistor RT1, the source electrode ground connection of the first metal-oxide-semiconductor Q1,
The drain electrode of first metal-oxide-semiconductor Q1 is electrically connected with the input terminal of microprocessor 2, and positive pole passes through second resistance R2 and the first metal-oxide-semiconductor
The drain electrode of Q1 is electrically connected.
The fever mechanism 4 includes the first heater 6 for being heated to air in inlet channel, the driving machine
Structure 3 includes 3rd resistor R3, the 4th resistance R4, the second metal-oxide-semiconductor Q2, and the first output end of microprocessor 2 passes through the 4th resistance R4
It is electrically connected with the grid of the second metal-oxide-semiconductor Q2, one end of 3rd resistor R3 is electrically connected with the grid of the second metal-oxide-semiconductor Q2,3rd resistor
The other end of R3 and the source electrode of the second metal-oxide-semiconductor Q2 are electrically connected and grounded, the drain electrode of the second metal-oxide-semiconductor Q2 by the first heater 6 with
Positive pole electrical connection.The fever mechanism 4 further includes the second heater 7 for being preheated to cigarette tobacco portion, described
Driving mechanism 3 includes the 5th resistance R5, the 6th resistance R6, third metal-oxide-semiconductor Q3, and the second output terminal of microprocessor 2 passes through the 6th
Resistance R6 is electrically connected with the grid of third metal-oxide-semiconductor Q3, and one end of the 5th resistance R5 is electrically connected with the grid of third metal-oxide-semiconductor Q3, the
The other end of five resistance R5 and the source electrode of third metal-oxide-semiconductor Q3 are electrically connected and grounded, and the drain electrode of third metal-oxide-semiconductor Q3 passes through the second fever
Body 7 is electrically connected with positive pole.
Electronic cigarette operating circuit further includes indication mechanism 5, and the output end of microprocessor 2 is electrically connected with indication mechanism 5.It is described
Indication mechanism 5 includes the 7th resistance R7, the 8th resistance R8, the first indicator light D1 and the second indicator light D2, the 7th resistance R7 and the
One indicator light D1 is serially connected between positive pole and the third output end of microprocessor 2, the 8th resistance R8 and the second indicator light D2
It is serially connected between positive pole and the 4th output end of microprocessor 2.
The working principle of the utility model is as follows:
Under the premise of metal-oxide-semiconductor temperature in driving mechanism 3 is lower:
When microphone 1 does not detect in inlet channel there is air-flow process, microphone 1 exports low level and the low level pass through by
The switching circuit that first resistor R1, the first metal-oxide-semiconductor Q1, thermistor RT1 are formed, so that the first metal-oxide-semiconductor Q1 works in cut-off region,
To which the input of microprocessor 2 terminates high level, driving mechanism 3 is failure to actuate.There is air-flow warp when microphone 1 detects in inlet channel
Out-of-date, microphone 1 exports high level and the high level first resistor R1, the first metal-oxide-semiconductor Q1, thermistor RT1 by being made of
Switching circuit generates a high level in the grid of the first metal-oxide-semiconductor Q1, so that the first metal-oxide-semiconductor Q1 work is in saturation region, micro process
The input terminal voltage of device 2 becomes low level by high level.Microprocessor 2 controls the driving fever of driving mechanism 3 mechanism 4 and works, from
And the fever of mechanism 4 of generating heat, finally make solid tobacco or liquid tobacco tar generate smog and is sucked for user.
With the growth of electronic cigarette working time, the temperature of metal-oxide-semiconductor is also constantly increased in driving mechanism 3, due to temperature-sensitive electricity
RT1 is hindered to be set at the metal-oxide-semiconductor in driving mechanism 3 and can metal-oxide-semiconductor (i.e. the second metal-oxide-semiconductor Q2 and the 3rd MOS in awareness driven mechanism 3
Pipe Q3) temperature variation, the resistance value of thermistor RT1 varies with temperature, and the resistance value of thermistor RT1 will affect the first MOS
The cut-in voltage of pipe Q1 grid.If the resistance value of first resistor R1 is R1, the resistance value of thermistor RT1 is RT1, what microphone 1 exported
Level is Vmic, and the grid voltage of the first metal-oxide-semiconductor Q1 is Vg, is calculated according to formula Vg=RT1/ (RT1+R1) * Vmic, works as temperature-sensitive
When the change in resistance of resistance RT1 leads to minimum cut-in voltage value of the Vg less than the first metal-oxide-semiconductor Q1, the first metal-oxide-semiconductor Q1 work is being cut
Only area, 2 input terminal voltage of microprocessor become high level from low level, so that driving mechanism 3 stops driving fever 4 work of mechanism
Make.That is, first metal-oxide-semiconductor Q1 is cut when thermistor RT1 detects the second metal-oxide-semiconductor Q2 and/or third metal-oxide-semiconductor Q3 temperature is higher
Only, so that microphone 1 can not work, microprocessor 2 will not issue instruction control driving mechanism 3 and work, and mainboard is protected not to be burned.
As it can be seen that in the utility model microphone 1 and microprocessor 2 can be controlled according to metal-oxide-semiconductor temperature in driving mechanism 3
Between on-off relationship, when the metal-oxide-semiconductor in driving mechanism 3 when the temperature is excessively high, end between microphone 1 and microprocessor 2, though this
Shi Mitou 1 detects air-breathing, and microprocessor 2 will not control the driving fever of driving mechanism 3 mechanism 4 and work, and avoids metal-oxide-semiconductor and master
Plate prevents PCB from deforming because high temperature is burnt out, and extends service life, reduces use cost.
Indication mechanism 5 is used to show the working condition of fever mechanism 4: when the input terminal level of microprocessor 2 is lower by height
When, microprocessor 2 controls the first heater 6 and the work of the second heater 7 by driving mechanism 3, meanwhile, microprocessor 2 issues
Instruction control the first indicator light D1 and the second indicator light D2 is always on, and is respectively used to the first heater 6 of instruction and the second heater 7
Working condition.When the input terminal level of microprocessor 2 is by low get higher, driving mechanism 3 and fever mechanism 4 do not work, meanwhile, the
One indicator light D1 and the second indicator light D2 also extinguish.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than limitation, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection scope of the utility model.
Claims (6)
1. a kind of electronic cigarette operating circuit, including microphone (1), microprocessor (2), driving mechanism (3) and fever mechanism (4), miaow
Head (1) is set in the inlet channel of electronic cigarette, and the output end of microphone (1) is electrically connected with microprocessor (2), microprocessor (2)
Output end is electrically connected by driving mechanism (3) with fever mechanism (4), and driving mechanism (3) includes metal-oxide-semiconductor, which is characterized in that is also wrapped
Include first resistor (R1), the first metal-oxide-semiconductor (Q1), the thermistor (RT1) at metal-oxide-semiconductor in driving mechanism (3), microphone (1)
Output end be electrically connected with the grid of the first metal-oxide-semiconductor (Q1) by first resistor (R1), the grid of the first metal-oxide-semiconductor (Q1) passes through heat
Quick resistance (RT1) ground connection, the source electrode ground connection of the first metal-oxide-semiconductor (Q1), the drain electrode of the first metal-oxide-semiconductor (Q1) are defeated with microprocessor (2)
Enter end electrical connection, positive pole is electrically connected by second resistance (R2) with the drain electrode of the first metal-oxide-semiconductor (Q1).
2. electronic cigarette operating circuit as described in claim 1, which is characterized in that the fever mechanism (4) include for into
The first heater (6) that air is heated in gas channel, the driving mechanism (3) include 3rd resistor (R3), the 4th resistance
(R4), the second metal-oxide-semiconductor (Q2), the first output end of microprocessor (2) pass through the grid of the 4th resistance (R4) and the second metal-oxide-semiconductor (Q2)
Pole electrical connection, one end of 3rd resistor (R3) is electrically connected with the grid of the second metal-oxide-semiconductor (Q2), the other end of 3rd resistor (R3) and
The source electrode of second metal-oxide-semiconductor (Q2) is electrically connected and grounded, and the drain electrode of the second metal-oxide-semiconductor (Q2) is passing through the first heater (6) and power supply just
Pole electrical connection.
3. electronic cigarette operating circuit as claimed in claim 2, which is characterized in that the fever mechanism (4) includes for cigarette
The second heater (7) that branch tobacco portion is preheated, the driving mechanism (3) include the 5th resistance (R5), the 6th resistance (R6),
The second output terminal of third metal-oxide-semiconductor (Q3), microprocessor (2) passes through the grid of the 6th resistance (R6) and third metal-oxide-semiconductor (Q3) electricity
Connection, one end of the 5th resistance (R5) are electrically connected with the grid of third metal-oxide-semiconductor (Q3), the other end and third of the 5th resistance (R5)
The source electrode of metal-oxide-semiconductor (Q3) is electrically connected and grounded, and the drain electrode of third metal-oxide-semiconductor (Q3) passes through the second heater (7) and positive pole electricity
Connection.
4. electronic cigarette operating circuit as described in any one of claims 1 to 3, which is characterized in that it further include indication mechanism (5),
The output end of microprocessor (2) is electrically connected with indication mechanism (5).
5. electronic cigarette operating circuit as claimed in claim 3, which is characterized in that further include indication mechanism (5), the display machine
Structure (5) includes the 7th resistance (R7), the 8th resistance (R8), the first indicator light (D1) and the second indicator light (D2), the 7th resistance
(R7) it is serially connected between positive pole and the third output end of microprocessor (2) with the first indicator light (D1), the 8th resistance (R8)
It is serially connected between positive pole and the 4th output end of microprocessor (2) with the second indicator light (D2).
6. a kind of includes the electronic cigarette of the electronic cigarette operating circuit as described in any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821153812.XU CN208550039U (en) | 2018-07-20 | 2018-07-20 | A kind of electronic cigarette operating circuit and electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821153812.XU CN208550039U (en) | 2018-07-20 | 2018-07-20 | A kind of electronic cigarette operating circuit and electronic cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208550039U true CN208550039U (en) | 2019-03-01 |
Family
ID=65446806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821153812.XU Active CN208550039U (en) | 2018-07-20 | 2018-07-20 | A kind of electronic cigarette operating circuit and electronic cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208550039U (en) |
-
2018
- 2018-07-20 CN CN201821153812.XU patent/CN208550039U/en active Active
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