CN208523778U - Electronic cigarette control system - Google Patents
Electronic cigarette control system Download PDFInfo
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- CN208523778U CN208523778U CN201821015137.4U CN201821015137U CN208523778U CN 208523778 U CN208523778 U CN 208523778U CN 201821015137 U CN201821015137 U CN 201821015137U CN 208523778 U CN208523778 U CN 208523778U
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Abstract
This application discloses a kind of electronic cigarette control system, which includes: power circuit, first switch circuit, heater element, signal generating circuit and feed circuit, and power circuit passes through first switch circuit connection heater element；Feed circuit includes voltage feedback circuit and current feedback circuit, and voltage feedback circuit and current feedback circuit are connected to heater element and signal generating circuit；Signal generating circuit is also attached to the control terminal of first switch circuit；Signal generating circuit generates first control signal for responding the first signal and the second signal, and first control signal is exported to the control terminal of switching circuit.By the above-mentioned means, the application electronic cigarette control system can be realized the control to temperature of heating elements.
Description
Technical field
This application involves electronic cigarette fields, more particularly to electronic cigarette control system.
Background technique
With social development and human progress, tobacco is gradually with the same function as the consumer goods being harmful to the human body
Replaced healthy article.Such as electronics smoke product, this product is generated by being atomized the liquid containing chemical substances such as nicotines
Smog, to realize user's smoking purpose.The mesh for assisting user's smoking cessation can also be reached by using different chemical substances simultaneously
's.It not only contributes to the physical and mental health of smoker, while being also beneficial to environmental protection, saves social resources.
Electronic cigarette is atomized tobacco juice generally by the method using heating heater element, after user is by sucking atomization
Tobacco juice achievees the purpose that smoking.The input power of popular electronics smoke product heater element after powered up is fixed currently on the market
, therefore the constant temperature of its heater element rises, however, the constant temperature of heater element rises when electronic cigarette continues working
Will cause battery excessively and tobacco tar dry combustion method.
Summary of the invention
The application can be realized to heater element temperature mainly solving the technical problems that provide a kind of electronic cigarette control system
The control of degree.
In order to solve the above technical problems, the technical solution that the application uses is: a kind of electronic cigarette control system is provided,
The control system includes power circuit, first switch circuit, heater element, signal generating circuit and feed circuit, wherein electricity
Source circuit is by first switch circuit connection heater element, for powering to heater element；Feed circuit includes Voltage Feedback electricity
Road and current feedback circuit, voltage feedback circuit and current feedback circuit are connected to heater element and signal generates electricity
Road, voltage feedback circuit are used to detect the first signal of the voltage value at reflection heater element both ends and the first signal are delivered to letter
Number generation circuit, current feedback circuit are used to detect the second signal for reflecting the current value for flowing through heater element and by second signals
It is delivered to signal generating circuit；Signal generating circuit is also attached to the control terminal of first switch circuit；Signal generating circuit is used for
It responds the first signal and the second signal and generates first control signal, and first control signal is exported to the control of switching circuit
End, wherein first control signal is for controlling make-and-break time of the first switch circuit within the period.
The beneficial effect of the application is: being in contrast to the prior art, since signal generating circuit can be according to reflection
The second signal that first signal of the voltage value at heater element both ends and reflection flow through the current value of heater element generates the first control
Signal processed, wherein first control signal includes the first state value and the second state of the second time of first time within the period
Value, and the first control signal is exported to the control terminal of switching circuit, so as to by the closure of control first switch and
It disconnects to control to heater element input power, and then realizes and the temperature of heater element is controlled.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application first embodiment electronic cigarette control system；
Fig. 2 is the structural schematic diagram of the application second embodiment electronic cigarette control system.
Specific embodiment
It is understandable to enable the above objects, features, and advantages of the application to become apparent, with reference to the accompanying drawing, to the application
Specific embodiment be described in detail.It is understood that specific embodiment described herein is only used for explaining this Shen
Please, rather than the restriction to the application.It also should be noted that illustrating only for ease of description, in attached drawing and the application
Relevant part rather than entire infrastructure.Based on the embodiment in the application, those of ordinary skill in the art are not making creation
Property labour under the premise of all other embodiment obtained, shall fall in the protection scope of this application.
Term " first ", " second " in the application etc. be for distinguishing different objects, rather than it is specific suitable for describing
Sequence.In addition, term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as comprising
The process, method, system, product or equipment of a series of steps or units are not limited to listed step or unit, and
It is optionally further comprising the step of not listing or unit, or optionally further comprising for these process, methods, product or equipment
Intrinsic other step or units.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of the application first embodiment electronic cigarette control system.
Control system 10 include power circuit 11, first switch circuit 12, heater element 13, signal generating circuit 14 and
Feed circuit 15.
Power circuit 11 connects heater element 13 by first switch circuit 12, for powering to heater element 13.Specifically
For, the input terminal of the output end connection first switch circuit 12 of power circuit 11, the output end connection of first switch circuit 12
The input terminal of heater element 13.
First switch circuit 12 may include insulating gate type field effect tube, for example, p-type insulating gate type field effect tube or N
Type insulating gate type field effect tube.
Feed circuit 15 includes voltage feedback circuit 151 and current feedback circuit 152, voltage feedback circuit 151 and electric current
Feed circuit 152 is connected to heater element 13 and signal generating circuit 14, and voltage feedback circuit 151 is for detecting reflection
First signal is simultaneously delivered to signal generating circuit 14, current feedback circuit by the first signal of the voltage value at 13 both ends of heater element
152 are used to detect the second signal for reflecting the current value for flowing through heater element 13 and second signal are delivered to signal generating circuit
14。
Specifically: voltage feedback circuit 151 includes the first resistor R1 and second resistance R2 being connected in series, heater element
13 is in parallel with first resistor R1, the second resistance R2 being connected in series, and the output end of first resistor R1 is connected to signal generating circuit
14。
Current feedback circuit 152 includes 3rd resistor R3 and the amplifier circuit 1521 in parallel with 3rd resistor R3, amplification
Device circuit 1521 is used to amplify the voltage signal at the both ends 3rd resistor R3, and is transmitted to signal for voltage signal as second signal
Generation circuit 14.
Wherein, the output end of the first end connection first switch circuit 12 of 3rd resistor R3, the second end of 3rd resistor R3
Connect the first end of heater element 13；The second end of heater element 13 is grounded；One end of heater element 13 is also connected with first resistor
First end, the first end of the second end of first resistor R1 connection second resistance R2 of R1, the second end of first resistor R1 can be
The output end of above-mentioned first resistor R1, the second end ground connection of second resistance R2, the second end connection signal of first resistor R1 produce
The first end 1 of raw circuit 14, so that the first end 1 of signal generating circuit 14 can detect the voltage at the both ends second resistance R2.
Amplifier circuit includes operational amplifier, and the non-inverting input terminal of operational amplifier connects the first end of 3rd resistor R3, and operation is put
The second end of the reverse input end connection 3rd resistor R3 of big device, the output end connection signal generation circuit 14 of operational amplifier
Second end, so that the second end of signal generating circuit 14 can be detected through the both ends operational amplifier amplified 3rd resistor R3
Voltage.
Signal generating circuit 14 can get the voltage at the both ends second resistance R2 and through operational amplifier amplified
The voltage at three both ends resistance R3, and can be according to the voltage at the both ends second resistance R2, the resistance value of first resistor R1 and the second electricity
The resistance value of resistance R2 obtains the voltage value at 13 both ends of heater element, and according to through the amplified 3rd resistor R3 two of operational amplifier
The resistance value of the voltage at end, the amplification factor of operational amplifier and 3rd resistor R3 obtains flowing through the electricity at 13 both ends of heater element
Stream.
Signal generating circuit 14 is also attached to the control terminal of first switch circuit 12, specially the of signal generating circuit 14
Three ends are connected to the control terminal of first switch circuit 12；Signal generating circuit 14 is for responding the first signal and the second signal generation
First control signal, and first control signal is exported to the control terminal of switching circuit, first control signal is described for controlling
Make-and-break time of the first switch circuit 12 within the period.Specifically, first control signal within the period including first time the
Second state value of one state value and the second time, when controlling signal and being in first state value, first switch circuit 12 is closed,
When controlling signal and being in the second state value, first switch circuit 12 is disconnected.
In the present embodiment, first control signal can be square-wave signal, and first state value can be in square-wave signal
High level, the second state value can be the low level in square-wave signal, and insulating gate type field effect tube can be in signal generating circuit
It is opened when 14 generation high level.
By the above-mentioned means, the first signal that signal generating circuit 14 is detected according to its first end, second end detect
Second signal, so that third end is generated first control signal, thus electric by the first switch that connect with heater element 13 of control
The on-off on road 12, to control the duration that period internal power circuit 11 is powered to heater element 13, to control heater element 13
Input power, namely the temperature of control heater element.
Referring to Fig. 2, Fig. 2 is the structural schematic diagram of the application second embodiment electronic cigarette control system.
The present embodiment is the specific structural schematic diagram of electronic cigarette control system 20, wherein part identical with previous embodiment
It repeats no more.
Control system 20 further includes temperature sensing circuit 16, and temperature sensing circuit 16 is connect with signal generating circuit 14, temperature
Degree detection circuit 16 is used to detect initial temperature signal when heater element 13 is started to work, and initial temperature signal is transmitted to
Signal generating circuit 14, signal generating circuit 14 are used for the response initial temperature signal when heater element 13 is started to work and generate the
Two control signals, and first control signal is exported to the control terminal of switching circuit, first control signal is for control switch electricity
Make-and-break time of the road within the period.
Temperature sensing circuit 16 includes the 5th resistance R5 and the 6th resistance R6, and the first end connection signal of the 5th resistance R5 produces
4th end of raw circuit 14, the second end of the 5th resistance R5 connect the first end of the 6th resistance R6, the second end of the 6th resistance R6
Ground connection.Wherein, the 5th resistance R5 can be thermistor.
Control system 20 further includes temperature input circuit 17, and the operation that temperature input circuit 17 is used to respond user generates mesh
Temperature signal is marked, and target temperature signal is transmitted to signal generating circuit 14, signal generating circuit 14 is used in heater element
13 respond initial temperature signal and target temperature signal generation second control signal when starting to work.
Temperature input circuit 17 is connected to the 5th end of signal generating circuit 14.User can be inputted by way of key
Target temperature value, or target temperature value can be changed by way of spin button, it can also be wrapped on temperature input circuit 17
Display screen (not shown) is included, for showing the target temperature value of user's input.
Power circuit 11 includes battery component 111 and power control circuit 112, and power control circuit 112 is connected to
Charging port 113 and battery component 111, the control terminal of power control circuit 112 are connected to signal generating circuit 14, power supply control
It is charge parameter when battery component 111 charges that circuit 112, which is used to adjust charging port 113,.
Specifically: charge parameter includes charging voltage and charging current, and power control circuit 112 includes voltage control electricity
Road 1121 and current control circuit 1122, voltage control circuit 1121 are connected to charging port 113 and current control circuit 1122
Between, current control circuit 1122 is connected between voltage control circuit 1121 and battery component 111, voltage control circuit 1121
It is connected to signal generating circuit 14 with the control terminal of current control circuit 1122, voltage control circuit 1121 is for responding letter
The third control signal that number generation circuit 14 generates is to adjust charging voltage；Current control circuit 1122 is generated for response signal
The 4th control signal that circuit 14 generates is to adjust charging current.
Charging port 113 connects the input terminal of voltage control circuit 1121, the output end connection of voltage control circuit 1121
The input terminal of current control circuit 1122, the input terminal of the output end connection battery component 111 of current control circuit 1122.Separately
Outside, the control terminal of voltage control circuit 1121 and current control circuit 1122 is connected to signal generating circuit 14.It is specific and
Speech, the 6th end of the control terminal connection signal generation circuit 14 of voltage control circuit 1121, the control of current control circuit 1122
Hold the 7th end of connection signal generation circuit 14.When the battery component 111 of electronic cigarette needs to charge, charging port 113 is connected
Charging unit (not shown) passes through the effect of the control voltage of voltage control circuit 1121 and the control of current control circuit 1122
The function of current, so as to be the charging of battery component 111 by the effect of power control circuit 112.Optionally, power supply control electricity
Road 112 can also include power protecting circuit (not shown), and power protecting circuit for example can connect defeated with charging port 113
Between outlet and the input terminal of voltage control circuit 1121.
Control system 20 further includes illuminating circuit 18, and the input terminal of illuminating circuit 18 is connect with signal generating circuit 14, is used
In luminous.Specially the input terminal of illuminating circuit 18 is connect with the 8th end of signal generating circuit 14, the output of illuminating circuit 18
End ground connection.Illuminating circuit 18 includes light emitting diode.
Control system 20 further includes second switch circuit 19 and voltage regulator circuit 20, the input terminal connection of voltage regulator circuit 20
In power circuit 11, the output end of voltage regulator circuit 20 is connected to signal generating circuit 14, and the enable end of voltage regulator circuit 20
It is connected to second switch circuit 19；Second switch circuit 19 inputs enable signal to voltage regulator circuit 20 for controlling whether；Surely
Transformer circuits 20 are used to carry out pressure stabilizing to the voltage of power circuit 11, and when receiving enable signal, voltage regulation signal is exported
To signal generating circuit 14.
Specifically: second switch circuit 19 includes touch-switch K, first diode D1, the second diode D2 and the 4th
Resistance R4；Wherein, the first end of touch-switch K is connected to power circuit 11；The second end of touch-switch K passes through first diode
D1 is connected to the enable end of voltage regulator circuit 20；The second end of touch-switch K is also attached to the test side of signal generating circuit 14,
And the maintenance end of signal generating circuit 14 is connected to the enable end of voltage regulator circuit 20 by the second diode D2；Touch-switch K
Second end also pass through the 4th resistance R4 ground connection；Signal generating circuit 14 is also used to when odd number is secondary within the set time for its test side
When receiving the input signal of supply voltage, by maintaining end to export enable signal to voltage regulator circuit 20, when its test side exists
It is enabled by maintaining end not export to voltage regulator circuit 20 when even numbers time receives the input signal of supply voltage in setting time
Signal.
Wherein, the output end of the first end connection battery component 111 of touch-switch K, the second end of touch-switch K connect letter
9th end of number generation circuit 14, the 9th end of signal generating circuit 14 can be DETECT pin, signal generating circuit 14
9th end can be the test side of above-mentioned signal generating circuit 14；The second end of touch-switch K is also attached to first diode
The input terminal of D1, the enable end of the output end connection voltage regulator circuit 20 of first diode D1；The second end of touch-switch K also connects
It is connected to the first end of the 4th resistance R4, the second end ground connection of the 4th resistance R4；The tenth end connection second of signal generating circuit 14
The input terminal of diode D2, the enable end of the output end connection voltage regulator circuit 20 of the second diode D2, signal generating circuit 14
The tenth end be HOLD pin, the tenth end of signal generating circuit 14 can be the maintenance end of above-mentioned signal generating circuit 14.
Voltage regulator circuit 20 includes linear voltage regulator (low dropout regulator, LDO).Voltage regulator circuit 20
The output end of input terminal connection battery component 111, the 11st of the output end connection signal generation circuit 14 of voltage regulator circuit 20 the
End.
In the present embodiment, the 12nd end ground connection of signal generating circuit 14.
Illustrate that the course of work of the present embodiment electronic cigarette control system 20 is pressed and touched when electronic cigarette does not work below
Switch K, electronic cigarette are started to work.Firstly, signal generating circuit 14 detects the voltage value at the 6th both ends resistance R6, according to the 6th electricity
The resistance value of the resistance value and the 5th resistance R5 that hinder R6 obtains the ambient temperature value of electronic cigarette；Then, signal generating circuit 14 is read
The target temperature value of temperature input circuit 17, signal generating circuit 14 generate the first control according to target temperature value and ambient temperature value
Signal processed, wherein first control signal includes the first state value and the second state of the second time of first time within the period
Value.Finally, electronic cigarette is at work, signal generating circuit 14 continues to detect the voltage at 13 both ends of heater element and flows through fever member
The electric current at 13 both ends of part, and persistently adjust according to the voltage and current first time and the second time of first control signal.Example
Such as, signal electricity production road 14 is to detect electric current larger, when voltage is smaller, then proves that the temperature of heater element 13 is high, at this point it is possible to
Make to shorten at the first time, the second time is elongated；Conversely, it is smaller detecting electric current, when voltage is larger, then prove heater element 13
Temperature it is low, at this point it is possible to make at the first time it is elongated, the second time shortened.
Electronic cigarette control system in the application can be in applying electronic smoke product.
The beneficial effect of the application is: being in contrast to the prior art, since signal generating circuit can be according to reflection
The second signal that first signal of the voltage value at heater element both ends and reflection flow through the current value of heater element generates the first control
Signal processed, wherein first control signal includes the first state value and the second state of the second time of first time within the period
Value, and the first control signal is exported to the control terminal of switching circuit, so as to by the closure of control first switch and
It disconnects to control to heater element input power, and then realizes and the temperature of heater element is controlled.
The above is only presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize the application
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of electronic cigarette control system, which is characterized in that the control system includes power circuit, first switch circuit, hair
Thermal element, signal generating circuit and feed circuit, wherein
The power circuit is by heater element described in the first switch circuit connection, for powering to heater element；
The feed circuit includes voltage feedback circuit and current feedback circuit, the voltage feedback circuit and the current feedback
Circuit is connected to the heater element and the signal generating circuit, and the voltage feedback circuit is for detecting reflection institute
It states the first signal of the voltage value at heater element both ends and first signal is delivered to the signal generating circuit, the electricity
Current feedback circuit is used to detect the second signal for reflecting the current value for flowing through the heater element and conveys the second signal
To the signal generating circuit；
The signal generating circuit is also attached to the control terminal of the first switch circuit；The signal generating circuit is for responding
First signal and the second signal generate first control signal, and the first control signal is exported to the switch
The control terminal of circuit, wherein the first control signal is for controlling make-and-break time of the first switch circuit within the period.
2. control system according to claim 1, which is characterized in that the voltage feedback circuit includes the be connected in series
One resistance and second resistance, the heater element is in parallel with the first resistor of series connection, the second resistance, and described
The output end of one resistance is connected to the signal generating circuit.
3. control system according to claim 1, which is characterized in that the current feedback circuit include 3rd resistor and with
The amplifier circuit of the 3rd resistor parallel connection, the amplifier circuit are used to amplify the voltage letter at the 3rd resistor both ends
Number, and the signal generating circuit is transmitted to using the voltage signal as the second signal.
4. control system according to claim 1, which is characterized in that the control system further includes temperature sensing circuit,
The temperature sensing circuit is connect with the signal generating circuit, and the temperature sensing circuit is opened for detecting the heater element
Initial temperature signal when beginning work, and the initial temperature signal is transmitted to the signal generating circuit, the signal produces
Raw circuit is used to respond the initial temperature signal when the heater element is started to work and generates second control signal, and by institute
It states second control signal to export to the control terminal of the first switch circuit, the second control signal is for controlling described first
Make-and-break time of the switching circuit within the period.
5. control system according to claim 4, which is characterized in that the control system further includes temperature input circuit,
The operation that the temperature input circuit is used to respond user generates target temperature signal, and the target temperature signal is transmitted to
The signal generating circuit, the signal generating circuit are used to respond the initial temperature when the heater element is started to work
Signal and the target temperature signal generate the second control signal.
6. control system according to claim 1, which is characterized in that the power circuit includes battery component and power supply control
Circuit processed, the power control circuit are connected to charging port and the battery component, the control of the power control circuit
End processed is connected to the signal generating circuit, and the power control circuit is the battery component for adjusting the charging port
Charge parameter when charging.
7. control system according to claim 6, which is characterized in that the charge parameter includes charging voltage and charging electricity
Stream, the power control circuit include voltage control circuit and current control circuit, and the voltage control circuit is connected to described
Between charging port and the current control circuit, the current control circuit is connected to the voltage control circuit and the electricity
Between the component of pond, the control terminal of the voltage control circuit and the current control circuit is connected to the signal and generates electricity
Road, the voltage control circuit are used to respond the third control signal that the signal generating circuit generates to adjust the charging electricity
Pressure；The current control circuit is used to respond the 4th control signal that the signal generating circuit generates to adjust the charging electricity
Stream.
8. control system according to claim 1, which is characterized in that the control system further includes illuminating circuit, described
The input terminal of illuminating circuit is connect with the signal generating circuit, for shining.
9. control system according to claim 1, which is characterized in that the control system further include second switch circuit and
Voltage regulator circuit,
The input terminal of the voltage regulator circuit is connected to the power circuit, and the output end of the voltage regulator circuit is connected to described
Signal generating circuit, and the enable end of the voltage regulator circuit is connected to the second switch circuit；The second switch circuit
For controlling whether to input enable signal to the voltage regulator circuit；The voltage regulator circuit is used for the electricity to the power circuit
Pressure carries out pressure stabilizing, and when receiving the enable signal, voltage regulation signal is exported to the signal generating circuit.
10. control system according to claim 9, which is characterized in that the second switch circuit includes touch-switch,
One diode, the second diode and the 4th resistance；Wherein, the first end of the touch-switch is connected to the power circuit；Institute
The second end for stating touch-switch is connected to the enable end of the voltage regulator circuit by the first diode；The touch-switch
Second end be also attached to the test side of the signal generating circuit, and the maintenance end of the signal generating circuit passes through described the
Two diodes are connected to the enable end of the voltage regulator circuit；The second end of the touch-switch also passes through the 4th resistance and connects
Ground；The signal generating circuit is also used to when the secondary input for receiving the supply voltage of odd number within the set time of its test side
When signal, by maintaining end to export enable signal to the voltage regulator circuit, when even numbers time connects within the set time for its test side
When receiving the input signal of the supply voltage, by maintaining end not export enable signal to the voltage regulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821015137.4U CN208523778U (en) | 2018-06-28 | 2018-06-28 | Electronic cigarette control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821015137.4U CN208523778U (en) | 2018-06-28 | 2018-06-28 | Electronic cigarette control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208523778U true CN208523778U (en) | 2019-02-22 |
Family
ID=65379038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821015137.4U Expired - Fee Related CN208523778U (en) | 2018-06-28 | 2018-06-28 | Electronic cigarette control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208523778U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330059A (en) * | 2020-03-31 | 2020-06-26 | 惠州市顺鑫宏电子科技有限公司 | USB interface low pressure champignon heater |
| CN111436658A (en) * | 2019-01-17 | 2020-07-24 | 日本烟草产业株式会社 | Power supply unit for aerosol inhaler |
| CN113907444A (en) * | 2021-06-17 | 2022-01-11 | 珠海市杰理科技股份有限公司 | Electric heating device and rapid authentication method thereof and related equipment |
-
2018
- 2018-06-28 CN CN201821015137.4U patent/CN208523778U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436658A (en) * | 2019-01-17 | 2020-07-24 | 日本烟草产业株式会社 | Power supply unit for aerosol inhaler |
| US11005282B2 (en) | 2019-01-17 | 2021-05-11 | Japan Tobacco Inc. | Power supply unit for aerosol inhaler |
| US11699914B2 (en) | 2019-01-17 | 2023-07-11 | Japan Tobacco Inc. | Power supply unit for aerosol inhaler provided with zener diode connected in parallel with charger |
| CN111330059A (en) * | 2020-03-31 | 2020-06-26 | 惠州市顺鑫宏电子科技有限公司 | USB interface low pressure champignon heater |
| CN113907444A (en) * | 2021-06-17 | 2022-01-11 | 珠海市杰理科技股份有限公司 | Electric heating device and rapid authentication method thereof and related equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190222 Termination date: 20190628 |