WO2016115689A1 - 改变雾化器发热丝等效电阻的切换电路及方法和电子烟 - Google Patents

改变雾化器发热丝等效电阻的切换电路及方法和电子烟 Download PDF

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Publication number
WO2016115689A1
WO2016115689A1 PCT/CN2015/071191 CN2015071191W WO2016115689A1 WO 2016115689 A1 WO2016115689 A1 WO 2016115689A1 CN 2015071191 W CN2015071191 W CN 2015071191W WO 2016115689 A1 WO2016115689 A1 WO 2016115689A1
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WO
WIPO (PCT)
Prior art keywords
heating wire
atomizer
temperature
atomizing device
switching circuit
Prior art date
Application number
PCT/CN2015/071191
Other languages
English (en)
French (fr)
Inventor
向智勇
Original Assignee
惠州市吉瑞科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州市吉瑞科技有限公司 filed Critical 惠州市吉瑞科技有限公司
Priority to PCT/CN2015/071191 priority Critical patent/WO2016115689A1/zh
Priority to CN201580072946.1A priority patent/CN107105785B/zh
Publication of WO2016115689A1 publication Critical patent/WO2016115689A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • the present invention relates to the field of electronic cigarette technology, and in particular, to a switching circuit and method for changing the equivalent resistance of an atomizer heating wire and an electronic cigarette.
  • Electronic cigarette is a relatively common artificial electronic cigarette product, mainly used for smoking cessation and replacement of cigarettes; the structure of electronic cigarette mainly includes battery rod and atomizer; when the smoker's smoking action is detected, the battery rod is The atomizer supplies power to make the atomizer in the open state; when the atomizer is turned on, the atomizer heating wire is heated, and the smoke oil is evaporated by heat to form an aerosol that simulates the smoke, thereby allowing the user to suck Electronic cigarettes have a feeling similar to the way they smoke.
  • the present invention is directed to the prior art, the electronic cigarette can not detect and control the temperature of the atomizing device heating wire, and the heating wire has a technical problem of excessive temperature during the working process, and provides a change in the atomizer heating.
  • the circuit and method for switching the equivalent resistance of the wire and an electronic cigarette realize the technical effect of monitoring and controlling the temperature of the heating wire in the heating wire of the atomizer to prevent the temperature from being too high.
  • an embodiment of the present invention provides a switching circuit for changing an equivalent resistance of an atomizer heating wire, which is applied to temperature control of a heating wire of an electronic cigarette atomizer, and the switching circuit includes: Electric a temperature detecting circuit in the atomizer of the sub-smoke, and a switching circuit connected to the temperature detecting circuit and the atomizing wire of the atomizer;
  • the temperature detecting circuit is configured to detect a temperature value of the heating wire of the atomizer, and generate a control signal for controlling the switching circuit based on the temperature value;
  • the switching circuit is configured to receive the control signal; when the atomizing device heating wire is over temperature, the switching circuit changes the equivalent resistance of the atomizing wire of the atomizer, Reducing the supply current of the battery rod of the electronic cigarette to the heating wire of the atomizer, or intermittently supplying the battery rod to the heating wire of the atomizer to realize the heating wire of the ultra-heat atomizer Cool down
  • the switching circuit restores the equivalent resistance of the heating wire of the atomizer, so that the battery rod is normally powered by the heating wire of the atomizer Heating, thereby controlling the heat generation temperature of the atomizer heating wire to be within a preset temperature range.
  • the temperature detecting circuit performs temperature detection by a thermistor or a thermocouple.
  • the switching circuit includes:
  • a first closing member connected to the atomizer heating wire and the temperature detecting circuit
  • the temperature detecting circuit controls the first switching element to be in a broken state or a conducting state by using the control signal; the switching circuit is changed based on different working states of the first switching element The equivalent resistance of the atomizer heating wire.
  • the first shutoff member is connected in parallel with the atomizer heating wire; and the temperature detecting circuit controls the first step by the control signal when the atomizer heating wire is over temperature
  • the closing member is in an on state
  • the atomizing device heating wire is short-circuited
  • the equivalent resistance of the atomizing device heating wire becomes zero
  • the electronic cigarette starts a short-circuit protection function
  • the battery rod gives the The heating current of the atomizer heating wire is reduced to zero to achieve the cooling of the heating wire of the over-temperature atomizer.
  • the switching circuit includes:
  • the temperature detecting circuit controls the second switch to be in a broken state or a conductive state by using the control signal; and the switching circuit is controlled based on different working states of the second switch Adjust the said Adjusting the connection of the resistance to the heating wire of the atomizer to change the equivalent resistance of the heating wire of the atomizer.
  • the atomizer heating wire is respectively connected in parallel with the adjusting resistor and the second switching element, and the adjusting resistor and the second switching element are connected in series;
  • the temperature detecting circuit controls the second closing member to be in an on state by the control signal, and the equivalent resistance of the atomizing device heating wire a total resistance of the atomizer heating wire in parallel with the adjusting resistor, wherein the total resistance after the parallel connection is less than a preset resistance ⁇ , the electronic cigarette activates an overcurrent protection function to reduce the battery rod Supplying a current to the heating wire of the atomizer, or intermittently supplying the battery rod to the heating wire of the atomizer to achieve cooling of the heating wire of the overheating atomizer.
  • the atomizer heating wire is respectively connected in series with the adjusting resistor and the second switching element, and the adjusting resistor and the second switching element are connected in parallel;
  • the temperature detecting circuit controls the second shutoff member to be in a broken state by the control signal, and the equivalent resistance of the atomizer heating wire a total resistance of the atomizer heating wire and the adjusting resistor in series to reduce a supply current of the battery rod of the electronic cigarette to the heating wire of the atomizer, and realize heating of the ultra-heat atomizer The temperature of the silk is cooled.
  • the embodiment of the present invention further provides a method for changing the equivalent resistance of the heating wire of the atomizer, which is applied to the switching circuit for changing the equivalent resistance of the heating wire of the electronic atomizer according to the above first aspect.
  • the method includes the steps of:
  • an embodiment of the present invention further provides an electronic cigarette, the electronic cigarette includes: a battery rod and an atomizer; a temperature detecting circuit is disposed in the atomizer, and the temperature is Detection circuit and atomization Switching circuit for heating wire connection;
  • the temperature detecting circuit is configured to detect a temperature value of the heating wire of the atomizer, and generate a control signal for controlling the switching circuit based on the temperature value;
  • the switching circuit is configured to receive the control signal; when the atomizing device heating wire is over temperature, the switching circuit changes the equivalent resistance of the atomizing wire of the atomizer, Reducing a supply current of the battery rod to the heating wire of the atomizer, or intermittently supplying the battery rod to the heating wire of the atomizer to achieve temperature reduction of the heating wire of the overheating atomizer;
  • the switching circuit restores the equivalent resistance of the heating wire of the atomizer, so that the battery rod is normally powered by the heating wire of the atomizer Heating, thereby controlling the heat generation temperature of the atomizer heating wire to be within a preset temperature range.
  • the temperature detecting circuit performs temperature detection by a thermistor or a thermocouple.
  • the temperature detecting circuit performs temperature detection by using a thermistor, and the temperature detecting circuit includes:
  • thermistor and a voltage dividing resistor connected in parallel with the atomizing device heating wire, the thermistor and the voltage dividing resistor being connected in series, and a series superimposed voltage of the thermistor and the voltage dividing resistor Constant
  • the thermistor is configured to detect a temperature value of the heating wire of the atomizer, and the resistance value of the thermistor is proportional to or inversely proportional to a temperature value of the heating wire of the atomizer, The voltage across the thermistor is proportional to its resistance;
  • the partial pressure of the thermistor is used to control the switching circuit to change the equivalent resistance of the heating wire of the atomizer, so that the heating temperature of the heating wire of the atomizer is at a preset temperature range Inside.
  • the switching circuit includes:
  • a first closing member connected to the atomizer heating wire and the temperature detecting circuit
  • the temperature detecting circuit controls the first switching element to be in a broken state or a conducting state by using the control signal; the switching circuit is changed based on different working states of the first switching element The equivalent resistance of the atomizer heating wire.
  • the first shutoff member is connected in parallel with the atomizer heating wire; and the temperature detecting circuit controls the first step by the control signal when the atomizer heating wire is over temperature
  • the closing member is in an on state
  • the atomizing device heating wire is short-circuited, and the equivalent resistance of the atomizing device heating wire becomes zero, the electronic cigarette
  • the short circuit protection function is activated, and the battery rod reduces the supply current of the atomizing device heating wire to zero, so as to reduce the temperature of the heating wire of the overheating atomizer.
  • the switching circuit includes:
  • the temperature detecting circuit controls the second switch to be in a broken state or a conductive state by using the control signal; the switching circuit is controlled based on different working states of the second switch Adjusting the connection manner of the adjusting resistor and the heating wire of the atomizer to change the equivalent resistance of the heating wire of the atomizer.
  • the atomizer heating wire is respectively connected in parallel with the adjusting resistor and the second switching element, and the adjusting resistor and the second switching element are connected in series;
  • the temperature detecting circuit controls the second closing member to be in an on state by the control signal, and the equivalent resistance of the atomizing device heating wire
  • the electronic cigarette activates an overcurrent protection function to reduce the battery rod Supplying a current to the heating wire of the atomizer, or intermittently supplying the battery rod to the heating wire of the atomizer to achieve cooling of the heating wire of the overheating atomizer.
  • the atomizer heating wire is respectively connected in series with the adjusting resistor and the second switching element, and the adjusting resistor and the second switching element are connected in parallel;
  • the temperature detecting circuit controls the second shutoff member to be in a broken state by the control signal, and the equivalent resistance of the atomizer heating wire a total resistance of the atomizer heating wire and the adjusting resistor in series to reduce the supply current of the battery rod to the heating wire of the atomizer, and to cool the heating wire of the ultra-heat atomizer .
  • the switching circuit for changing the equivalent resistance of the heating wire of the electronic cigarette atomizer comprises: a temperature detecting circuit disposed in the atomizer of the electronic cigarette, and the temperature detecting circuit and Place a switching circuit for connecting a nebulizer heating wire; wherein the temperature detecting circuit is configured to detect a temperature value of the heating wire of the atomizer, and generate a control for the switching based on the temperature value a control signal of the circuit; the switching circuit is configured to receive the control signal; and the heating circuit of the atomizer is over temperature, the switching circuit changes the heating wire of the atomizer, etc.
  • the effective resistance is to reduce the supply current of the battery rod of the electronic cigarette to the heating wire of the atomizer, or to intermittently supply the battery rod to the heating wire of the atomizer to achieve over-temperature atomization Cooling of the heating wire; after the temperature of the heating wire of the atomizer returns to normal, the switching circuit restores the equivalent resistance of the heating wire of the atomizer, so that the battery rod is heated by the atomizer
  • the wire is normally powered and heated, thereby controlling the heating temperature of the heating wire of the atomizer to be within a preset temperature range; effectively solving the problem that the electronic cigarette cannot detect and control the heating wire temperature of the atomizer in the prior art, and the heating wire is work
  • the technical problem of excessive temperature is realized, and the temperature of the heating wire is monitored and controlled by heating the heating wire of the atomizer to keep the temperature within a suitable temperature range, and the atomization of the oil in this temperature range
  • the generated smoke has a good taste and does not produce toxic substances, and after the exhausted oil is exhausted
  • FIG. 1 is a block diagram showing a structure of a switching circuit for changing an equivalent resistance of a heating wire of an atomizer according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a first temperature detecting circuit for controlling a switching circuit according to an embodiment of the present invention
  • FIG. 3 is a schematic circuit diagram of a temperature control circuit for controlling temperature of an atomizer heating wire in parallel with a heating element of a nebulizer according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a second temperature detecting circuit for controlling a switching circuit according to an embodiment of the present invention
  • FIG. 5 is a schematic circuit diagram of a temperature detecting circuit for controlling temperature of an atomizing device heating wire in a second detecting device and a heat generating wire of the atomizer according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a third temperature detecting circuit for controlling a switching circuit according to an embodiment of the present invention.
  • FIG. 7 is a schematic circuit diagram of a temperature control circuit for controlling temperature of an atomizer heating wire when a second shut-off member is connected in series with a heating wire of an atomizer according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram showing a relationship between a first installation position of a thermistor and a heating wire of an atomizer according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram showing a relationship between a thermistor and a second mounting position of a heating wire of an atomizer according to an embodiment of the present invention.
  • thermocouple component 10 is a schematic view showing a relationship between a thermocouple component and a heating wire of an atomizer according to an embodiment of the present invention
  • FIG. 11 is a flow chart of a method for changing the equivalent resistance of an atomizer heating wire according to an embodiment of the present invention.
  • FIG. 12 is a structural block diagram of an electronic cigarette according to an embodiment of the present invention.
  • the embodiment of the present invention provides a switching circuit for changing the equivalent resistance of the heating wire of the atomizer, which solves the problem that the electronic cigarette cannot detect and control the temperature of the heating wire of the atomizer in the prior art, and the heating wire is in the working process.
  • the temperature of the heating wire is monitored and controlled by the heating wire of the atomizer, so that the temperature is within a suitable temperature range without excessive technical effects.
  • Embodiments of the present invention provide a switching circuit for changing an equivalent resistance of an atomizer heating wire, which is applied to temperature control of an electronic cigarette atomizer heating wire, and the switching circuit includes: a temperature detecting circuit in the atomizer, and a switching circuit connected to the temperature detecting circuit and the atomizing wire of the atomizer; the temperature detecting circuit for detecting the temperature of the heating wire of the atomizer And generating, based on the temperature value, a control signal for controlling the switching circuit; the switching circuit is configured to receive the control signal; and the heating wire of the atomizer is over temperature
  • the switching circuit changes the equivalent resistance of the atomizer heating wire to reduce the battery rod of the electronic cigarette to the mist
  • the supply current of the heating wire of the heater, or the battery rod is intermittently supplied with power to the heating wire of the atomizer, to achieve the cooling of the heating wire of the overheating atomizer; the temperature of the heating wire of the atomizer returns to normal
  • the switching circuit recovers the equivalent resistance of the
  • the temperature value of the heating wire of the atomizer is detected by the temperature detecting circuit, and the equivalent resistance of the heating wire is changed according to the temperature value to control the switching circuit to
  • the heating wire overheating reduces the supply current of the battery rod to the heating wire, or causes the battery rod to intermittently supply power to the heating wire of the atomizer, thereby achieving the cooling of the heating wire of the ultra-wartom atomizer, in contrast, After the temperature of the heating wire of the atomizer returns to normal, the switching circuit restores the equivalent resistance of the heating wire of the atomizer, so that the battery rod is normally heated and heated by the heating wire, thereby controlling the heating of the heating wire.
  • the temperature is within the preset temperature range; effectively solving the technical problem that the electronic cigarette cannot detect and control the temperature of the atomizing device heating wire in the prior art, and the heating wire is overheated during the working process, and the atomization is realized.
  • the heating wire heating ⁇ monitors and controls the temperature of the heating wire to keep its temperature within a suitable temperature range, and the smoke generated by the atomization of the oil in this temperature range It tastes good and does not produce toxic substances, and it does not burn when the oil is exhausted, which improves the user experience.
  • an embodiment of the present invention provides a switching circuit 100 for changing the equivalent resistance of an atomizing device heating wire, which is applied to temperature control of an electronic cigarette atomizer heating wire 30.
  • the switching circuit 100 includes: a temperature detecting circuit 10 disposed in the atomizer of the electronic cigarette, and a switching circuit 20 connected to the temperature detecting circuit 10 and the atomizer heating wire 30;
  • the temperature detecting circuit 10 is configured to detect a temperature value of the atomizing device heating wire 30, and generate a control signal for controlling the switching circuit 20 based on the temperature value; specifically, the temperature detecting circuit 10 passes Thermistor or thermocouple performs temperature detection; [0070] a switching circuit 20 for receiving the control signal; when the atomizing device heating wire 30 is over temperature, the switching circuit 20 changes the equivalent resistance of the atomizing device heating wire 30 to reduce the The battery rod of the electronic cigarette supplies a current supply current to the atomizing device heating wire 30, or the battery rod is intermittently supplied with power to the atomizing device heating wire 30 to achieve cooling of the heating wire 30 of the overheating atomizer;
  • the switching circuit 20 restores the equivalent resistance of the atomizing device heating wire 30, so that the battery rod is normally powered and heated by the atomizing device heating wire 30, thereby controlling The heat generation temperature of the atomizer heating wire 30 is within a preset temperature range.
  • the switching circuit 20 includes: a series or parallel connection with the atomizer heating wire 30; the temperature detecting circuit 10 controls the switching element to be in a broken state or conduct through the control signal.
  • the state is such that the switching circuit 20 changes the equivalent resistance of the atomizing device heating wire 30 based on the different operating states of the switching device, so that the temperature of the atomizing device heating wire 30 is too high, so that the flow through the atomizer is generated.
  • the current of the wire 30 is reduced to effect cooling of the atomizer heating wire 30.
  • the following is a detailed description of the scheme based on the different connection relationship between the shutoff member and the atomizer heating wire 30:
  • the switching circuit 20 includes: a first switch 201 connected to the atomizer heating wire 30 and the temperature detecting circuit 10; the temperature detecting circuit 10 controls the first switch through the control signal.
  • the piece 201 is in a broken state or a conducting state; the switching circuit 20 changes the equivalent resistance of the atomizing wire 30 based on the different operating states of the first closing member 201. Specifically, when the working state of the first closing member 201 is the conductive state, the equivalent resistance of the atomizing device heating wire 30 is reduced, and when the working state of the first closing member 201 is the broken state, the fog is restored.
  • the equivalent resistance of the heating wire 30 ie, the initial resistance of the atomizer heating wire 30 is restored); wherein the equivalent resistance of the atomizing device heating wire 30 is reduced relative to the initial resistance of the atomizing device heating wire 30. In terms of value.
  • the first shutoff member 201 is connected in parallel with the atomizer heating wire 30; when the atomizer heating wire 30 is overheated, the temperature detecting circuit 10 controls the first shutoff member by the control signal. 201 is in a conducting state, the atomizing device heating wire 30 is short-circuited, the equivalent resistance of the atomizing device heating wire 30 becomes zero, the electronic cigarette starts a short-circuit protection function, and the battery rod supplies power to the atomizing device heating wire 30. The current is reduced to zero to achieve ultra-warm fog The temperature of the heating wire 30 is lowered.
  • the first detecting device 201 is connected in parallel with the atomizing device heating wire 30, and the temperature detecting circuit 10 performs a circuit schematic diagram of the temperature control of the atomizing device heating wire.
  • R1 is the atomizing device heating wire 30, and its two ends are respectively connected with the positive and negative electrodes (B+, B-) of the battery;
  • Q1 is the first closing member 201, and is connected in parallel with R1;
  • D1 is the voltage regulating tube, here It can be set to 3.0V;
  • R6 is the protection resistor of D1, which can avoid the current of D1 is too large;
  • R14 is the PTC type thermistor, the temperature rises and the resistance increases;
  • R7 is the resistor, and R14 constitutes the voltage divider circuit.
  • the voltage value Vc is used to control the Q1 on/off;
  • C1 is the charging capacitor, which is used to maintain the voltage stability across the voltage dividing circuit of the voltage regulator D1 and R7-R14 when the battery is powered by a pulse modulation (PWM) signal.
  • Q 1 is a FET, and its gate is connected with a connection line of a resistor R7 and a thermistor R14 for obtaining a voltage dividing signal Vc of the thermistor; one end of the D1 is connected to the battery negative B-, and the other of the D1 One end is connected to the battery positive B+ through R6, R7 is connected in series with R14, and R7, R14 and C1 are all connected in parallel with D1.
  • Dl, R6, R7, R14 and CI constitute a temperature detecting circuit 10, when the atomizing device heating wire 30 (ie, R1) is a normal temperature value ⁇ , the voltage dividing value Vc of R14 and R7 does not reach the conduction of Q1.
  • the threshold value, the atomizer heating wire 30 works normally; when the R1 temperature rises to the set value ⁇ , the resistance value of R14 also increases, so that the value of Vc reaches the conduction threshold of Q1, and Q1 turns on, so that R1 is short-circuited.
  • the equivalent resistance of the atomizing device heating wire 30 is drastically reduced, causing the current measured by the battery rod to increase greatly, the battery rod enters the short-circuit protection state, and the battery rod breaks the power supply circuit of the atomizing device heating wire 30, thereby causing atomization.
  • the temperature of the heating wire 30 is controlled.
  • the set value is: a maximum temperature value of the smoke generated by atomizing the smoke oil to produce a mouthfeel; when the smoke liquid in the atomizer is exhausted, the setting The setting is slightly lower than the ignition temperature of the electronic cigarette storage cotton.
  • the switching circuit 20 includes: an adjustment resistor 202 connected to the atomizer heating wire 30; and a second connection to the atomizer heating wire 30, the adjusting resistor 202, and the temperature detecting circuit 10.
  • the temperature detecting circuit 10 controls the second switching element 203 to be in a broken state or a conducting state by the control signal; the switching switching circuit 20 controls the adjustment adjusting resistor 202 based on different operating states of the second switching member 203.
  • the connection with the atomizing device heating wire 30 is performed to change the equivalent resistance of the atomizing device heating wire 30.
  • the equivalent resistance of the atomizer heating wire 30 is reduced, and when the working state of the second shutoff member 203 is the broken state, the fog is restored.
  • the equivalent resistance of the heating wire 30 ie The initial resistance of the atomizing device heating wire 30 is restored; wherein the equivalent resistance of the atomizing device heating wire 30 is reduced relative to the initial resistance of the atomizing device heating wire 30.
  • the atomizer heating wire 30 is respectively connected in parallel with the adjusting resistor 202 and the second closing member 203, and the adjusting resistor 202 and the second closing member 203 are connected in series; the atomizing device heating wire 30 is overheated. ⁇ , the temperature detecting circuit 10 controls the second switch 203 to be in an on state by the control signal, and the equivalent resistance of the atomizer heating wire 30 becomes the total resistance after the atomizer heating wire 30 and the adjusting resistor 202 are connected in parallel.
  • the electronic cigarette activates an overcurrent protection function to reduce a supply current of the battery rod to the atomizer heating wire 30, or to disconnect the battery rod
  • the atomizer heating wire 30 is continuously supplied with power to cool the heating wire 30 of the overheating atomizer.
  • the second detecting device 203 is connected in parallel with the atomizing device heating wire 30, and the temperature detecting circuit 10 performs a circuit schematic diagram of the temperature control of the atomizing device heating wire.
  • R4 is the atomizing device heating wire 30, and its two ends are respectively connected with the positive and negative electrodes (B+, B-) of the battery;
  • Q3 is the second closing member 203, connected in parallel with R4;
  • D2 is the Zener tube;
  • R9 For the protection resistance of D2, the current of D2 can be avoided;
  • R16 is a PTC type thermistor, the temperature rises and the resistance increases;
  • R13 is the resistance, and R16 constitutes a voltage dividing circuit, and its voltage dividing value Vc is used for control.
  • C3 is a charging capacitor used to maintain the voltage stability across the voltage divider circuit of the voltage regulator D2 and R13-R16 when the battery is powered by a pulse-modulated (PWM) signal.
  • PWM pulse-modulated
  • one end of D2 is connected to the battery negative B-
  • the other end of D2 is connected to the battery positive B+ through R9
  • R13 and R16 are connected in series
  • R13, R1 6 and C3 are all connected in parallel with D2.
  • D2, R9, R13, R16 and C3 constitute a temperature detecting circuit 10, when the atomizing device heating wire 30 (ie, R4) is a normal temperature value ⁇ , the voltage dividing value Vc of R16 and R13 does not reach the conduction of Q3.
  • the threshold value, the atomizer heating wire 30 works normally; when the R4 temperature rises to the set value ⁇ , the resistance value of R16 also increases, so that the value of Vc reaches the conduction threshold of Q3, and Q3 conducts so that R12 is connected in parallel with R4.
  • the switching circuit 20 includes: an adjustment resistor 202 connected to the atomizer heating wire 30; and a second connection to the atomizer heating wire 30, the adjusting resistor 202, and the temperature detecting circuit 10.
  • the temperature detecting circuit 10 controls the second switching element 203 to be in a broken state or a conducting state by the control signal; the switching switching circuit 20 controls the adjustment adjusting resistor 202 based on different operating states of the second switching element 203.
  • the connection with the atomizing device heating wire 30 is performed to change the equivalent resistance of the atomizing device heating wire 30.
  • the equivalent resistance of the atomizing device heating wire 30 is increased, and when the working state of the second closing member 203 is the conducting state, the fog is restored.
  • the equivalent resistance of the heating wire 30 ie, the initial resistance of the atomizing device 30
  • the increase in the equivalent resistance of the atomizing wire 30 relative to the initial resistance of the atomizing wire 30 In terms of value.
  • the atomizer heating wire 30 is connected in series with the adjusting resistor 202 and the second closing member 203, and the adjusting resistor 202 and the second closing member 203 are connected in parallel; the atomizing device heating wire 30 is overheated. ⁇ , the temperature detecting circuit 10 controls the second closing member 203 to be in a broken state by the control signal, and the equivalent resistance of the atomizing device heating wire 30 becomes the total resistance of the atomizing device heating wire 30 and the adjusting resistor 202 in series. In order to reduce the supply current of the battery rod of the electronic cigarette to the heating wire 30 of the atomizer, and to cool the heating wire 30 of the overheating atomizer.
  • the second detecting member 203 is connected in series with the atomizing device heating wire 30, and the temperature detecting circuit 10 performs a circuit schematic diagram for controlling the temperature of the atomizing device heating wire.
  • R2 is the atomizing device heating wire 30, and its two ends are respectively connected with the positive and negative electrodes (B+, B-) of the battery;
  • Q2 is the second closing member 203;
  • D3 is the voltage regulating tube;
  • R 8 is the D3 Protection resistor can avoid excessive current of D3;
  • R15 is NTC type thermistor, temperature rises and ⁇ resistance decreases;
  • R11 is resistance, which forms a voltage dividing circuit with R15, and its voltage dividing value Vc is used to control Q2 pass.
  • C2 is a charging capacitor. It is used to maintain the voltage across the voltage divider circuit of the voltage regulator D3 and R11-R15 when the battery is powered by a pulse-modulated (PWM) signal.
  • PWM pulse-modulated
  • one end of D3 is connected to battery negative B-
  • the other end of D3 is connected to battery positive B+ through R8,
  • R11 is connected in series with R15
  • Rl l, R15 and C2 are all connected in parallel with D3.
  • the circuit structure of FIG. 7 is basically the same as that of FIG. 5 and FIG. 3, except that Q2 is connected in series with the atomizing device heating wire 30 (ie, R2), and the branch in which R2 is located is connected in series with resistor R10 (ie, adjusting resistor 202).
  • D3, R8, Rl l, R15 and C2 constitute a temperature detecting circuit 10, when the atomizing device heating wire 30 (ie R2) is a normal temperature value (ie, the R2 temperature is lower than a set value), R11 and R15
  • the relationship between the temperature detecting component (ie, the thermistor or the thermocouple) used by the temperature detecting circuit 10 and the atomizing device heating wire 30 is as shown in FIG. 8 to FIG.
  • the temperature detecting component uses a thermistor 81, and the atomizing device heating wire 30 is wound around the thermistor 81.
  • the temperature detecting component uses a thermistor 82.
  • the thermistor 82 is disposed at a position close to the periphery of the atomizing heater heating wire 30; in FIG. 10, the temperature detecting component uses a thermocouple component 83, and the atomizer heating wire 30-end passes through the thermoelectric Even component 83.
  • the temperature detecting circuit 10 can be used to check the temperature of the atomizing device heating wire 30.
  • the temperature detecting circuit is configured to detect the temperature value of the heating wire of the atomizer, and based on the temperature value, the switching circuit is controlled to change the equivalent resistance of the heating wire to be in the atomizer.
  • the heating wire overheating reduces the supply current of the battery rod to the heating wire, or causes the battery rod to intermittently supply power to the heating wire of the atomizer, thereby achieving the cooling of the heating wire of the ultra-wartom atomizer, in contrast, After the temperature of the heating wire of the atomizer returns to normal, the switching circuit restores the equivalent resistance of the heating wire of the atomizer, so that the battery rod is normally heated and heated by the heating wire, thereby controlling the heating of the heating wire.
  • the temperature is within the preset temperature range; the temperature of the heating wire is monitored and controlled by the heating wire of the atomizer, so that the temperature is maintained within a suitable temperature range, and the atomization of the oil is generated within the temperature range.
  • the embodiment of the present invention further provides a method for changing the equivalent resistance of the heating element of the atomizer, which is applied to change the heating wire of the electronic cigarette atomizer as described in the first embodiment.
  • the method includes the steps of:
  • an embodiment of the present invention further provides an electronic cigarette, the electronic cigarette comprising: a battery rod 1 and an atomizer 2; and a temperature detection is provided in the atomizer 2 a circuit 10, and a switching circuit 20 connected to the temperature detecting circuit 10 and the atomizer heating wire 30;
  • the temperature detecting circuit 10 is configured to detect a temperature value of the atomizing device heating wire 30, and based on the temperature value
  • the temperature detecting circuit 10 performs temperature detection by a thermistor or a thermocouple;
  • the switching circuit 20 is configured to receive the control signal; when the atomizing device heating wire 30 is over temperature, the switching circuit 20 changes the equivalent resistance of the atomizing device heating wire 30 to reduce the battery rod 1 supplying power to the atomizing device heating wire 30, or intermittently supplying the battery rod 1 to the atomizing device heating wire 30 to achieve cooling of the heating wire 30 of the overheating atomizer;
  • the switching circuit 20 restores the equivalent resistance of the atomizing device heating wire 30, so that the battery rod 1 is normally powered and heated by the atomizing device heating wire 30, thereby controlling the fog.
  • the heating temperature of the heating wire 30 is within a preset temperature range.
  • the temperature detecting circuit 10 performs temperature detection through a thermistor, and the temperature detecting circuit 10 includes: a thermistor 101 and a voltage dividing resistor 102 connected in parallel with the atomizing device heating wire 30, the thermistor 1 01 and the voltage dividing resistor 102 are connected in series, and the series superposition voltage of the thermistor 101 and the voltage dividing resistor 102 is constant; the thermistor 101 is used for detecting the temperature value of the atomizing device heating wire 30, and the resistance value of the thermistor 101 It is proportional to or inversely proportional to the temperature value of the atomizing device heating wire 30, and the voltage across the thermistor 101 is proportional to its resistance value.
  • R1 is the atomizer heating wire 30
  • R14 is the thermistor 101
  • R7 is the voltage dividing resistor 102, wherein R14 is connected with R7
  • the voltage dividing branch formed by R14 and R7 is two
  • the voltage regulator D1 is connected in parallel with the terminal to make the voltage across the voltage dividing branch constant; in addition, FIG. 5 and FIG. 7 also adopt such a circuit design principle.
  • the thermistors used in Figures 3 and 5 are R14 and R16, respectively, which are PTC type thermistors, that is, the temperature rises, the thermistor resistance increases, and the voltage across the thermistor increases.
  • NTC is used in Figure 7.
  • Type thermistor that is, the temperature rises, the thermistor resistance decreases, and the voltage across the thermistor decreases; the voltage division of the thermistor 101 is used to control the switching circuit 20 to change the atomizer heating wire
  • the equivalent resistance of 30 is such that the heat generation temperature of the atomizer heating wire 30 is within a preset temperature range.
  • the switching circuit 20 includes: a series or parallel connection with the atomizer heating wire 30; the temperature detecting circuit 10 controls the switching element to be in a broken state or conduct through the control signal
  • the state is such that the switching circuit 20 changes the equivalent resistance of the atomizing device heating wire 30 based on the different operating states of the switching device, so that the temperature of the atomizing device heating wire 30 is too high, so that the flow through the atomizer is generated.
  • the current of the wire 30 is reduced to effect cooling of the atomizer heating wire 30.
  • the following is a detailed description of the scheme based on the different connection relationship between the shutoff member and the atomizer heating wire 30:
  • the switching circuit 20 includes: a first switch 201 connected to the atomizer heating wire 30 and the temperature detecting circuit 10; the temperature detecting circuit 10 controls the first switch through the control signal.
  • the piece 201 is in a broken state or a conducting state; the switching circuit 20 changes the equivalent resistance of the atomizing wire 30 based on the different operating states of the first closing member 201.
  • the first shut-off member 201 is connected in parallel with the atomizing device heating wire 30; when the atomizing device heating wire 30 is over-temperature, the temperature detecting circuit 10 controls the first ⁇ by the control signal.
  • the closing member 201 is in the conducting state, the atomizing device heating wire 30 is short-circuited, the equivalent resistance of the atomizing device heating wire 30 becomes zero, the electronic cigarette starts the short-circuit protection function, and the battery rod 1 supplies the atomizing device heating wire 30 The supply current is reduced to zero to achieve a cooling of the heating wire 30 of the overheated atomizer.
  • the switching circuit 20 includes: an adjustment resistor 202 connected to the atomizer heating wire 30; and a second electrode connected to the atomizer heating wire 30, the adjusting resistor 202, and the temperature detecting circuit 10. a closing member 203; the temperature detecting circuit 10 controls the second switching member 203 to be in a broken state or a conducting state by the control signal; the switching switching circuit 20 controls the adjusting and adjusting resistor based on different working states of the second switching member 203 202 is connected to the atomizing device heating wire 30 to change the equivalent resistance of the atomizing device heating wire 30.
  • the atomizer heating wire 30 is respectively connected in parallel with the adjusting resistor 202 and the second closing member 203, and the adjusting resistor 202 and the second closing member 203 are connected in series; in the atomizing device heating wire 30
  • the temperature detecting circuit 10 controls the second closing member 203 to be in an on state by the control signal, and the equivalent resistance of the atomizing device heating wire 30 becomes the parallel connection between the atomizing device heating wire 30 and the adjusting resistor 202.
  • the total resistance when the total resistance after the parallel connection is less than the preset resistance ⁇ , the electronic cigarette activates an overcurrent protection function to reduce the supply current of the battery rod 1 to the atomizer heating wire 30, or to disconnect the battery rod 1
  • the atomizer heating wire 30 is continuously supplied with power to cool the heating wire 30 of the overheating atomizer.
  • the atomizer heating wire 30 is connected in series with the adjusting resistor 202 and the second closing member 203, and the adjusting resistor 202 and the second closing member 203 are connected in parallel; the atomizing device heating wire 30 is overheated.
  • the temperature detecting circuit 10 controls the second closing member 203 to be in a broken state by the control signal, and the equivalent resistance of the atomizing device heating wire 30 becomes the total resistance of the atomizing device heating wire 30 and the adjusting resistor 202 in series.
  • the supply current of the battery rod 1 to the atomizing device heating wire 30 is reduced, and the temperature of the heating element 30 of the overheating atomizer is lowered.
  • the electronic cigarette includes the switching circuit for changing the equivalent resistance of the heating wire of the atomizer, and therefore, the embodiment of the electronic cigarette and the switching circuit for changing the equivalent resistance of the heating wire of the atomizer are The embodiments are the same or similar and will not be described again here.
  • embodiments of the invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Further, the present invention may take the form of a computer program product embodied in one or more of which comprises a computer usable storage medium having computer-usable program code (including but not limited to, disk storage, CD-R 0 M, optical memory, etc.).

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Abstract

一种改变雾化器发热丝等效电阻的切换电路（100）及方法和一种电子烟，解决了现有技术中电子烟无法测控雾化发热丝温度，而导致发热丝工作温度过高的技术问题。所述切换电路（100）包括：温度检测电路（10）和切换开关电路（20）。温度检测电路（10）检测获取发热丝（30）的温度值，并基于该温度值生成用于控制切换开关电路（20）的控制信号。在发热丝（30）超温时，切换开关电路（20）改变发热丝（30）的等效电阻，以减小电池杆（1）给发热丝（30）的供电电流，或使电池杆（1）断续为发热丝（30）供电，以对发热丝（30）降温。在发热丝（30）温度恢复正常时，切换开关电路（20）恢复发热丝（30）的等效电阻，使电池杆（1）为发热丝（30）正常供电加热。实现了在发热丝加热时对其温度进行监控，以使其温度处于预设温度范围内，且不会过高的技术效果。

Description

说明书 发明名称:改变雾化器发热丝等效电阻的切换电路及方法和电子烟 技术领域
[0001] 本发明涉及电子烟技术领域， 尤其涉及一种改变雾化器发热丝等效电阻的切换 电路及方法和一种电子烟。
背景技术
[0002] 电子烟是一种较为常见的仿真香烟电子产品， 主要用于戒烟和替代香烟； 电子 烟的结构主要包括电池杆和雾化器； 当检测到吸烟者的吸烟动作吋， 电池杆为 雾化器供电， 使雾化器处于幵启状态； 当雾化器幵启后， 雾化器发热丝发热， 烟油受热蒸发雾化， 形成模拟烟气的气雾， 从而让使用者在吸电子烟吋有一种 类似吸真烟的感觉。
[0003] 目前大多数电子烟雾化器是由发热丝、 导线、 铜线以及其它零部件组成； 在发 热丝发热吋， 无法测控发热丝的温度， 当发热丝的温度在使用过程中不断上升 而过高吋， 发热丝会输出异味， 影响用户吸烟口感， 并且当烟油温度高到一定 程度吋会产生有害物质， 危害吸烟者身体健康； 另外， 在雾化器烟油已经耗尽 的情况下， 用户继续抽烟， 会导致发热丝继续发热而出现焼棉的情况。
[0004] 也就是说， 现有技术中存在电子烟无法检测并控制雾化器发热丝温度， 而导致 发热丝在工作过程中出现温度过高的技术问题。
技术问题
[0005] 本发明针对现有技术中存在的， 电子烟无法检测并控制雾化器发热丝温度， 而 导致发热丝在工作过程中出现温度过高的技术问题， 提供一种改变雾化器发热 丝等效电阻的切换电路及方法和一种电子烟， 实现了在雾化器发热丝加热吋对 发热丝的温度进行监测控制， 以使其温度不会过高的技术效果。
问题的解决方案
技术解决方案
[0006] 第一方面， 本发明实施例提供了一种改变雾化器发热丝等效电阻的切换电路， 应用于对电子烟雾化器发热丝的温度控制， 所述切换电路包括： 设置在所述电 子烟的雾化器中的温度检测电路， 以及与所述温度检测电路和所述雾化器发热 丝连接的切换幵关电路；
[0007] 所述温度检测电路， 用于检测获取所述雾化器发热丝的温度值， 并基于所述温 度值， 生成用于控制所述切换幵关电路的控制信号；
[0008] 所述切换幵关电路， 用于接收所述控制信号； 在所述雾化器发热丝超温吋， 所 述切换幵关电路改变所述雾化器发热丝的等效电阻， 以减小所述电子烟的电池 杆给所述雾化器发热丝的供电电流， 或使所述电池杆断续为所述雾化器发热丝 供电， 以实现对超温雾化器发热丝的降温；
[0009] 在所述雾化器发热丝温度恢复正常吋， 所述切换幵关电路恢复所述雾化器发热 丝的等效电阻， 使所述电池杆为所述雾化器发热丝正常供电加热， 从而控制所 述雾化器发热丝的发热温度处于预设温度范围内。
[0010] 可选的， 所述温度检测电路通过热敏电阻或热电偶进行温度检测。
[0011] 可选的， 所述切换幵关电路包括：
[0012] 与所述雾化器发热丝和所述温度检测电路连接的第一幵关件；
[0013] 所述温度检测电路通过所述控制信号控制所述第一幵关件处于断幵状态或导通 状态； 所述切换幵关电路基于所述第一幵关件的不同工作状态， 改变所述雾化 器发热丝的等效电阻。
[0014] 可选的， 所述第一幵关件与所述雾化器发热丝并联； 在所述雾化器发热丝超温 吋， 所述温度检测电路通过所述控制信号控制所述第一幵关件处于导通状态， 所述雾化器发热丝被短路， 所述雾化器发热丝的等效电阻变为零， 所述电子烟 启动短路保护功能， 所述电池杆给所述雾化器发热丝供电电流减小为零， 以实 现对超温雾化器发热丝的降温。
[0015] 可选的， 所述切换幵关电路包括：
[0016] 与所述雾化器发热丝连接的调节电阻；
[0017] 与所述雾化器发热丝、 所述调节电阻以及所述温度检测电路连接的第二幵关件
[0018] 所述温度检测电路通过所述控制信号控制所述第二幵关件处于断幵状态或导通 状态； 所述切换幵关电路基于所述第二幵关件的不同工作状态， 控制调整所述 调节电阻与所述雾化器发热丝的连接方式， 以改变所述雾化器发热丝的等效电 阻。
[0019] 可选的， 所述雾化器发热丝分别与所述调节电阻和所述第二幵关件并联， 所述 调节电阻和所述第二幵关件串联；
[0020] 在所述雾化器发热丝超温吋， 所述温度检测电路通过所述控制信号控制所述第 二幵关件处于导通状态， 所述雾化器发热丝的等效电阻变为所述雾化器发热丝 与所述调节电阻并联后的总电阻， 在所述并联后的总电阻小于预设电阻吋， 所 述电子烟启动过流保护功能， 以减小所述电池杆给所述雾化器发热丝的供电电 流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实现对超温雾化器发热 丝的降温。
[0021] 可选的， 所述雾化器发热丝分别与所述调节电阻和所述第二幵关件串联， 所述 调节电阻和所述第二幵关件并联；
[0022] 在所述雾化器发热丝超温吋， 所述温度检测电路通过所述控制信号控制所述第 二幵关件处于断幵状态， 所述雾化器发热丝的等效电阻变为所述雾化器发热丝 与所述调节电阻串联后的总电阻， 以减小所述电子烟的电池杆给所述雾化器发 热丝的供电电流， 并实现对超温雾化器发热丝的降温。
[0023] 第二方面， 本发明实施例还提供了一种改变雾化器发热丝等效电阻的方法， 应 用于上述第一方面所述的改变电子烟雾化器发热丝等效电阻的切换电路中； 所 述方法包括步骤：
[0024] Sl、 检测获取电子烟雾化器发热丝的温度值；
[0025] S2、 在所述雾化器发热丝超温吋， 改变所述雾化器发热丝的等效电阻， 以减小 所述电子烟的电池杆给所述雾化器发热丝的供电电流， 或使所述电池杆断续为 所述雾化器发热丝供电， 以实现对超温雾化器发热丝的降温；
[0026] S3、 在所述雾化器发热丝温度恢复正常吋， 恢复所述雾化器发热丝的等效电阻 ， 使所述电池杆为所述雾化器发热丝正常供电加热， 从而控制所述雾化器发热 丝的发热温度处于预设温度范围内。
[0027] 第三方面， 本发明实施例还提供了一种电子烟， 所述电子烟包括： 电池杆和雾 化器； 在所述雾化器中设置有温度检测电路， 以及与所述温度检测电路和雾化 器发热丝连接的切换幵关电路；
[0028] 所述温度检测电路， 用于检测获取所述雾化器发热丝的温度值， 并基于所述温 度值， 生成用于控制所述切换幵关电路的控制信号；
[0029] 所述切换幵关电路， 用于接收所述控制信号； 在所述雾化器发热丝超温吋， 所 述切换幵关电路改变所述雾化器发热丝的等效电阻， 以减小所述电池杆给所述 雾化器发热丝的供电电流， 或使所述电池杆断续为所述雾化器发热丝供电， 以 实现对超温雾化器发热丝的降温；
[0030] 在所述雾化器发热丝温度恢复正常吋， 所述切换幵关电路恢复所述雾化器发热 丝的等效电阻， 使所述电池杆为所述雾化器发热丝正常供电加热， 从而控制所 述雾化器发热丝的发热温度处于预设温度范围内。
[0031] 可选的， 所述温度检测电路通过热敏电阻或热电偶进行温度检测。
[0032] 可选的， 所述温度检测电路通过热敏电阻进行温度检测， 所述温度检测电路， 包括：
[0033] 与所述雾化器发热丝并联的热敏电阻和分压电阻， 所述热敏电阻和所述分压电 阻串联， 且所述热敏电阻和所述分压电阻的串联叠加电压恒定；
[0034] 所述热敏电阻用于检测获取所述雾化器发热丝的温度值， 所述热敏电阻的阻值 与所述雾化器发热丝的温度值成正比或成反比， 所述热敏电阻的两端电压与其 阻值成正比；
[0035] 所述热敏电阻的分压用于控制所述切换幵关电路改变所述雾化器发热丝的等效 电阻， 以使所述雾化器发热丝的发热温度处于预设温度范围内。
[0036] 可选的， 所述切换幵关电路包括：
[0037] 与所述雾化器发热丝和所述温度检测电路连接的第一幵关件；
[0038] 所述温度检测电路通过所述控制信号控制所述第一幵关件处于断幵状态或导通 状态； 所述切换幵关电路基于所述第一幵关件的不同工作状态， 改变所述雾化 器发热丝的等效电阻。
[0039] 可选的， 所述第一幵关件与所述雾化器发热丝并联； 在所述雾化器发热丝超温 吋， 所述温度检测电路通过所述控制信号控制所述第一幵关件处于导通状态， 所述雾化器发热丝被短路， 所述雾化器发热丝的等效电阻变为零， 所述电子烟 启动短路保护功能， 所述电池杆给所述雾化器发热丝供电电流减小为零， 以实 现对超温雾化器发热丝的降温。
[0040] 可选的， 所述切换幵关电路包括：
[0041] 与所述雾化器发热丝连接的调节电阻；
[0042] 与所述雾化器发热丝、 所述调节电阻以及所述温度检测电路连接的第二幵关件
[0043] 所述温度检测电路通过所述控制信号控制所述第二幵关件处于断幵状态或导通 状态； 所述切换幵关电路基于所述第二幵关件的不同工作状态， 控制调整所述 调节电阻与所述雾化器发热丝的连接方式， 以改变所述雾化器发热丝的等效电 阻。
[0044] 可选的， 所述雾化器发热丝分别与所述调节电阻和所述第二幵关件并联， 所述 调节电阻和所述第二幵关件串联；
[0045] 在所述雾化器发热丝超温吋， 所述温度检测电路通过所述控制信号控制所述第 二幵关件处于导通状态， 所述雾化器发热丝的等效电阻变为所述雾化器发热丝 与所述调节电阻并联后的总电阻， 当所述并联后的总电阻小于预设电阻吋， 所 述电子烟启动过流保护功能， 以减小所述电池杆给所述雾化器发热丝的供电电 流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实现对超温雾化器发热 丝的降温。
[0046] 可选的， 所述雾化器发热丝分别与所述调节电阻和所述第二幵关件串联， 所述 调节电阻和所述第二幵关件并联；
[0047] 在所述雾化器发热丝超温吋， 所述温度检测电路通过所述控制信号控制所述第 二幵关件处于断幵状态， 所述雾化器发热丝的等效电阻变为所述雾化器发热丝 与所述调节电阻串联后的总电阻， 以减小所述电池杆给所述雾化器发热丝的供 电电流， 并实现对超温雾化器发热丝的降温。
发明的有益效果
有益效果
[0048] 由于在本发明方案中， 改变电子烟雾化器发热丝等效电阻的切换电路， 包括： 设置在所述电子烟的雾化器中的温度检测电路， 以及与所述温度检测电路和所 述雾化器发热丝连接的切换幵关电路； 其中， 所述温度检测电路， 用于检测获 取所述雾化器发热丝的温度值， 并基于所述温度值， 生成用于控制所述切换幵 关电路的控制信号； 所述切换幵关电路， 用于接收所述控制信号； 在所述雾化 器发热丝超温吋， 所述切换幵关电路改变所述雾化器发热丝的等效电阻， 以减 小所述电子烟的电池杆给所述雾化器发热丝的供电电流， 或使所述电池杆断续 为所述雾化器发热丝供电， 以实现对超温雾化器发热丝的降温； 在所述雾化器 发热丝温度恢复正常吋， 所述切换幵关电路恢复所述雾化器发热丝的等效电阻 ， 使所述电池杆为所述雾化器发热丝正常供电加热， 从而控制所述雾化器发热 丝的发热温度处于预设温度范围内； 有效地解决了现有技术中电子烟无法检测 并控制雾化器发热丝温度， 而导致发热丝在工作过程中出现温度过高的技术问 题， 实现了在雾化器发热丝加热吋对发热丝的温度进行监测控制， 以使其温度 保持在适宜的温度范围内， 在此温度范围内烟油雾化产生的烟雾口感好、 且不 会产生有毒物质， 并且在烟油耗尽吋不会发生烧棉现象， 提高了用户使用体验 度。
对附图的简要说明
附图说明
[0049] 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施例或 现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的 附图仅仅是本发明的实施例， 对于本领域普通技术人员来讲， 在不付出创造性 劳动的前提下， 还可以根据提供的附图获得其他的附图。
[0050] 图 1为本发明实施例提供的一种改变雾化器发热丝等效电阻的切换电路的结构 框图；
[0051] 图 2为本发明实施例提供的第一种温度检测电路控制切换幵关电路的结构示意 图；
[0052] 图 3为本发明实施例提供的在第一幵关件与雾化器发热丝并联吋， 温度检测电 路进行雾化器发热丝温度控制的电路原理图；
[0053] 图 4为本发明实施例提供的第二种温度检测电路控制切换幵关电路的结构示意 图； [0054] 图 5为本发明实施例提供的在第二幵关件与雾化器发热丝并联吋， 温度检测电 路进行雾化器发热丝温度控制的电路原理图；
[0055] 图 6为本发明实施例提供的第三种温度检测电路控制切换幵关电路的结构示意 图；
[0056] 图 7为本发明实施例提供的在第二幵关件与雾化器发热丝串联吋， 温度检测电 路进行雾化器发热丝温度控制的电路原理图；
[0057] 图 8为本发明实施例提供的热敏电阻与雾化器发热丝的第一种安装位置关系示 意图；
[0058] 图 9为本发明实施例提供的热敏电阻与雾化器发热丝的第二种安装位置关系示 意图；
[0059] 图 10为本发明实施例提供的热电偶元器件与雾化器发热丝的安装位置关系示意 图；
[0060] 图 11为本发明实施例提供的一种改变雾化器发热丝等效电阻的方法流程图； [0061] 图 12为本发明实施例提供的一种电子烟的结构框图。
本发明的实施方式
[0062] 本发明实施例通过提供一种改变雾化器发热丝等效电阻的切换电路， 解决了现 有技术中电子烟无法检测并控制雾化器发热丝温度， 而导致发热丝在工作过程 中出现温度过高的技术问题， 实现了在雾化器发热丝加热吋对发热丝的温度进 行监测控制， 以使其温度处于适宜温度范围内， 而不会过高的技术效果。
[0063] 本发明实施例的技术方案为解决上述技术问题， 总体思路如下：
[0064] 本发明实施例提供了一种改变雾化器发热丝等效电阻的切换电路， 应用于对电 子烟雾化器发热丝的温度控制， 所述切换电路包括： 设置在所述电子烟的雾化 器中的温度检测电路， 以及与所述温度检测电路和所述雾化器发热丝连接的切 换幵关电路； 所述温度检测电路， 用于检测获取所述雾化器发热丝的温度值， 并基于所述温度值， 生成用于控制所述切换幵关电路的控制信号； 所述切换幵 关电路， 用于接收所述控制信号； 在所述雾化器发热丝超温吋， 所述切换幵关 电路改变所述雾化器发热丝的等效电阻， 以减小所述电子烟的电池杆给所述雾 化器发热丝的供电电流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实 现对超温雾化器发热丝的降温； 在所述雾化器发热丝温度恢复正常吋， 所述切 换幵关电路恢复所述雾化器发热丝的等效电阻， 使所述电池杆为所述雾化器发 热丝正常供电加热， 从而控制所述雾化器发热丝的发热温度处于预设温度范围 内。
[0065] 可见， 在本发明实施例中， 通过温度检测电路检测获取雾化器发热丝的温度值 ， 并基于该温度值控制切换幵关电路改变发热丝的等效电阻， 以在雾化器发热 丝超温吋减小电池杆给发热丝的供电电流， 或使所述电池杆断续为所述雾化器 发热丝供电， 从而实现对超温雾化器发热丝的降温， 相对的， 在所述雾化器发 热丝温度恢复正常吋， 所述切换幵关电路恢复所述雾化器发热丝的等效电阻， 使所述电池杆为发热丝正常供电加热， 从而控制发热丝的发热温度处于预设温 度范围内； 有效地解决了现有技术中电子烟无法检测并控制雾化器发热丝温度 ， 而导致发热丝在工作过程中出现温度过高的技术问题， 实现了在雾化器发热 丝加热吋对发热丝的温度进行监测控制， 以使其温度保持在适宜的温度范围内 ， 在此温度范围内烟油雾化产生的烟雾口感好、 且不会产生有毒物质， 并且在 烟油耗尽吋不会发生烧棉现象， 提高了用户使用体验度。
[0066] 为了更好的理解上述技术方案， 下面将结合说明书附图以及具体的实施方式对 上述技术方案进行详细的说明， 应当理解本发明实施例以及实施例中的具体特 征是对本申请技术方案的详细的说明， 而不是对本申请技术方案的限定， 在不 冲突的情况下， 本发明实施例以及实施例中的技术特征可以相互组合。
[0067] 实施例一
[0068] 请参考图 1， 本发明实施例提供了一种改变雾化器发热丝等效电阻的切换电路 1 00， 应用于对电子烟雾化器发热丝 30的温度控制， 切换电路 100包括： 设置在所 述电子烟的雾化器中的温度检测电路 10， 以及与温度检测电路 10和雾化器发热 丝 30连接的切换幵关电路 20；
[0069] 温度检测电路 10， 用于检测获取雾化器发热丝 30的温度值， 并基于所述温度值 ， 生成用于控制切换幵关电路 20的控制信号； 具体的， 温度检测电路 10通过热 敏电阻或热电偶进行温度检测； [0070] 切换幵关电路 20， 用于接收所述控制信号； 在雾化器发热丝 30超温吋， 切换幵 关电路 20改变雾化器发热丝 30的等效电阻， 以减小所述电子烟的电池杆给雾化 器发热丝 30的供电电流， 或使所述电池杆断续为雾化器发热丝 30供电， 以实现 对超温雾化器发热丝 30的降温；
[0071] 在雾化器发热丝 30温度恢复正常吋， 切换幵关电路 20恢复雾化器发热丝 30的等 效电阻， 使所述电池杆为雾化器发热丝 30正常供电加热， 从而控制雾化器发热 丝 30的发热温度处于预设温度范围内。
[0072] 在具体实施过程中， 切换幵关电路 20包括： 与雾化器发热丝 30串联或并联幵关 件； 温度检测电路 10通过所述控制信号控制幵关件处于断幵状态或导通状态， 以使切换幵关电路 20基于幵关件的不同工作状态， 改变雾化器发热丝 30的等效 电阻， 从而在雾化器发热丝 30温度过高吋， 使流过雾化器发热丝 30的电流减小 ， 以实现对雾化器发热丝 30降温。 下面基于幵关件与雾化器发热丝 30的不同连 接关系， 对本方案进行详细说明：
[0073] 方案一： 幵关件与雾化器发热丝 30并联
[0074] 1) 通过对雾化器发热丝 30进行短路的方式， 改变雾化器发热丝 30的等效电阻
[0075] 请参考图 2， 切换幵关电路 20包括： 与雾化器发热丝 30和温度检测电路 10连接 的第一幵关件 201 ; 温度检测电路 10通过所述控制信号控制第一幵关件 201处于 断幵状态或导通状态； 切换幵关电路 20基于第一幵关件 201的不同工作状态， 改 变雾化器发热丝 30的等效电阻。 具体为， 在第一幵关件 201的工作状态为导通状 态吋， 减小雾化器发热丝 30的等效电阻， 在第一幵关件 201的工作状态为断幵状 态吋， 恢复雾化器发热丝 30的等效电阻 （即恢复雾化器发热丝 30的初始阻值） ； 其中， 雾化器发热丝 30的等效电阻的减小相对于雾化器发热丝 30的初始阻值 而言。
[0076] 仍请参考图 2， 第一幵关件 201与雾化器发热丝 30并联； 在雾化器发热丝 30超温 吋， 温度检测电路 10通过所述控制信号控制第一幵关件 201处于导通状态， 雾化 器发热丝 30被短路， 雾化器发热丝 30的等效电阻变为零， 所述电子烟启动短路 保护功能， 所述电池杆给雾化器发热丝 30供电电流减小为零， 以实现对超温雾 化器发热丝 30的降温。
[0077] 接着请参考图 3， 为第一幵关件 201与雾化器发热丝 30并联吋， 温度检测电路 10 进行雾化器发热丝温度控制的电路原理图。 图 3中， R1为雾化器发热丝 30， 其两 端分别与电池正、 负极 （B+、 B-) 相连； Q1为第一幵关件 201， 与 R1并联； D1 是稳压管， 这里可设置 3.0V; R6为 D1的保护电阻， 可避免 D1的电流过大； R14 为 PTC型热敏电阻， 温度升高吋电阻增加； R7为电阻， 与 R14—起构成分压电路 ， 其分压值 Vc用于控制 Q1通断； C1为充电电容， 用于当电池供电为脉冲调制 ( PWM) 信号吋， 维持稳压管 D1和 R7-R14分压电路两端电压的稳定性。 其中， Q 1为场效应管， 其栅极与电阻 R7和热敏电阻 R14的连接线相连， 用于获取热敏电 阻的分压信号 Vc ; Dl的一端与电池负极 B-相连， D1的另一端通过 R6与电池正极 B+相连， R7与 R14串联， R7、 R14和 C1均与 Dl并联。
[0078] Dl、 R6、 R7、 R14和 CI构成温度检测电路 10， 当雾化器发热丝 30 (即 R1 ) 为 正常温度值吋， R14与 R7的分压值 Vc不会达到 Q1的导通阀值， 雾化器发热丝 30 正常工作； 当 R1温度上升到设定值吋， R14的电阻值也增加， 使得 Vc的值达到 了 Q1的导通阀值， Q1导通使得 R1被短路， 即雾化器发热丝 30的等效电阻急剧减 小， 导致电池杆测到的电流大增， 电池杆进入短路保护状态， 电池杆将雾化器 发热丝 30供电电路断幵， 从而使得雾化器发热丝 30的温度得以控制。 其中， 当 雾化器中烟液未耗尽吋， 所述设定值为： 使烟油雾化产生口感较佳烟雾的最高 温度值； 当雾化器中烟液耗尽吋， 所述设定值稍低于电子烟储油棉燃点温度。
[0079] 2) 通过为雾化器发热丝 30并联电阻的方式， 改变雾化器发热丝 30的等效电阻
[0080] 请参考图 4， 切换幵关电路 20包括： 与雾化器发热丝 30连接的调节电阻 202; 与 雾化器发热丝 30、 调节电阻 202以及温度检测电路 10连接的第二幵关件 203 ; 温 度检测电路 10通过所述控制信号控制第二幵关件 203处于断幵状态或导通状态； 切换幵关电路 20基于第二幵关件 203的不同工作状态， 控制调整调节电阻 202与 雾化器发热丝 30的连接方式， 以改变雾化器发热丝 30的等效电阻。 具体为， 在 第二幵关件 203的工作状态为导通状态吋， 减小雾化器发热丝 30的等效电阻， 在 第二幵关件 203的工作状态为断幵状态吋， 恢复雾化器发热丝 30的等效电阻 （即 恢复雾化器发热丝 30的初始阻值） ； 其中， 雾化器发热丝 30的等效电阻的减小 相对于雾化器发热丝 30的初始阻值而言。
[0081] 仍请参考图 4， 雾化器发热丝 30分别与调节电阻 202和第二幵关件 203并联， 调 节电阻 202和第二幵关件 203串联； 在雾化器发热丝 30超温吋， 温度检测电路 10 通过所述控制信号控制第二幵关件 203处于导通状态， 雾化器发热丝 30的等效电 阻变为雾化器发热丝 30与调节电阻 202并联后的总电阻， 在所述并联后的总电阻 小于预设电阻吋， 所述电子烟启动过流保护功能， 以减小所述电池杆给雾化器 发热丝 30的供电电流， 或使所述电池杆断续为雾化器发热丝 30供电， 以实现对 超温雾化器发热丝 30的降温。
[0082] 接着请参考图 5， 为第二幵关件 203与雾化器发热丝 30并联吋， 温度检测电路 10 进行雾化器发热丝温度控制的电路原理图。 图 5中， R4为雾化器发热丝 30， 其两 端分别与电池正、 负极 （B+、 B-) 相连； Q3为第二幵关件 203， 与 R4并联； D2 是稳压管； R9为 D2的保护电阻， 可避免 D2的电流过大； R16为 PTC型热敏电阻 ， 温度升高吋电阻增加； R13为电阻， 与 R16—起构成分压电路， 其分压值 Vc用 于控制 Q3通断； C3为充电电容， 用于当电池供电为脉冲调制 （PWM) 信号吋， 维持稳压管 D2和 R13-R16分压电路两端电压的稳定性。 其中， D2的一端与电池 负极 B-相连， D2的另一端通过 R9与电池正极 B+相连， R13与 R16串联， R13、 R1 6和 C3均与 D2并联。 可见， 图 5与图 3的电路结构基本相同， 不同的是， Q3所在 的支路串联电阻 R12 (即调节电阻 202) 。
[0083] D2、 R9、 R13、 R16和 C3构成温度检测电路 10， 当雾化器发热丝 30 (即 R4) 为 正常温度值吋， R16与 R13的分压值 Vc不会达到 Q3的导通阀值， 雾化器发热丝 30 正常工作； 当 R4温度上升到设定值吋， R16的电阻值也增加， 使得 Vc的值达到 了 Q3的导通阀值， Q3导通使得 R12与 R4并联， 在 R12阻值较小吋， 雾化器发热丝 30的等效电阻大幅减小， 导致电池杆测到的电流大增， 电池杆进入过流保护状 态， 电池杆将雾化器发热丝 30供电电路断幵， 从而使得雾化器发热丝 30的温度 得以控制。 其中， 当雾化器中烟液未耗尽吋， 所述设定值为： 使烟油雾化产生 口感较佳烟雾的最高温度值； 当雾化器中烟液耗尽吋， 所述设定值稍低于电子 烟储油棉燃点温度。 [0084] 方案二： 幵关件与雾化器发热丝 30串联
[0085] 通过为雾化器发热丝 30串联电阻的方式， 改变雾化器发热丝 30的等效电阻：
[0086] 请参考图 6， 切换幵关电路 20包括： 与雾化器发热丝 30连接的调节电阻 202; 与 雾化器发热丝 30、 调节电阻 202以及温度检测电路 10连接的第二幵关件 203; 温 度检测电路 10通过所述控制信号控制第二幵关件 203处于断幵状态或导通状态； 切换幵关电路 20基于第二幵关件 203的不同工作状态， 控制调整调节电阻 202与 雾化器发热丝 30的连接方式， 以改变雾化器发热丝 30的等效电阻。 具体为， 在 第二幵关件 203的工作状态为断幵状态吋， 增大雾化器发热丝 30的等效电阻， 在 第二幵关件 203的工作状态为导通状态吋， 恢复雾化器发热丝 30的等效电阻 （即 恢复雾化器发热丝 30的初始阻值） ； 其中， 雾化器发热丝 30的等效电阻的增大 相对于雾化器发热丝 30的初始阻值而言。
[0087] 仍请参考图 6， 雾化器发热丝 30分别与调节电阻 202和第二幵关件 203串联， 调 节电阻 202和第二幵关件 203并联； 在雾化器发热丝 30超温吋， 温度检测电路 10 通过所述控制信号控制第二幵关件 203处于断幵状态， 雾化器发热丝 30的等效电 阻变为雾化器发热丝 30与调节电阻 202串联后的总电阻， 以减小所述电子烟的电 池杆给雾化器发热丝 30的供电电流， 并实现对超温雾化器发热丝 30的降温。
[0088] 接着请参考图 7， 为第二幵关件 203与雾化器发热丝 30串联吋， 温度检测电路 10 进行雾化器发热丝温度控制的电路原理图。 图 7中， R2为雾化器发热丝 30， 其两 端分别与电池正、 负极 （B+、 B-) 相连； Q2为第二幵关件 203; D3是稳压管； R 8为 D3的保护电阻， 可避免 D3的电流过大； R15为 NTC型热敏电阻， 温度升高吋 电阻减小； R11为电阻， 与 R15—起构成分压电路， 其分压值 Vc用于控制 Q2通断 ； C2为充电电容， 用于当电池供电为脉冲调制 （PWM) 信号吋， 维持稳压管 D3 和 R11-R15分压电路两端电压稳定。 其中， D3的一端与电池负极 B-相连， D3的 另一端通过 R8与电池正极 B+相连， R11与 R15串联， Rl l、 R15和 C2均与 D3并联 。 可见， 图 7与图 5、 图 3的电路结构基本相同， 不同的是， Q2与雾化器发热丝 30 (即 R2) 串联， R2所在的支路串联电阻 R10 (即调节电阻 202) 。
[0089] D3、 R8、 Rl l、 R15和 C2构成温度检测电路 10， 当雾化器发热丝 30 (即 R2) 为 正常温度值 （即 R2温度低于设定值） 吋， R11与 R15的分压值 Vc高于 Q2的导通阀 值， Q2导通， 雾化器发热丝 30正常工作； 当 R2温度上升到设定值吋， Vc低于 Q2 的导通阀值， Q2截止， 使得 R10接入雾化器的电流通路中且与 R2串联； 又由于 电池杆为雾化器供电电压 （即 B+与 B-之间的电压） 相对稳定， 在雾化器发热丝 3 0的等效电阻增大吋， 雾化器发热丝 30电流通路中电流减小， 雾化器发热丝 30幵 始降温， 从而得到保护。
[0090] 在具体实施过程中， 温度检测电路 10采用的温度检测元器件 （即热敏电阻或热 电偶） 与雾化器发热丝 30的安装位置关系如图 8-图 10所示。 其中， 在图 8中， 所 述温度检测元器件采用热敏电阻 81， 雾化器发热丝 30绕设在热敏电阻 81上； 在 图 9中， 所述温度检测元器件采用热敏电阻 82， 热敏电阻 82设置在雾化器发热丝 30周边与其贴近的位置上； 在图 10中， 所述温度检测元器件采用热电偶元器件 8 3， 雾化器发热丝 30—端穿过热电偶元器件 83。 通过上述三种雾化器发热丝 30和 温度检测元器件位置设置， 可实现温度检测电路 10对雾化器发热丝 30的温度检
[0091] 总而言之， 在本发明实施例中， 通过温度检测电路检测获取雾化器发热丝的温 度值， 并基于该温度值控制切换幵关电路改变发热丝的等效电阻， 以在雾化器 发热丝超温吋减小电池杆给发热丝的供电电流， 或使所述电池杆断续为所述雾 化器发热丝供电， 从而实现对超温雾化器发热丝的降温， 相对的， 在所述雾化 器发热丝温度恢复正常吋， 所述切换幵关电路恢复所述雾化器发热丝的等效电 阻， 使所述电池杆为发热丝正常供电加热， 从而控制发热丝的发热温度处于预 设温度范围内； 实现了在雾化器发热丝加热吋对发热丝的温度进行监测控制， 以使其温度保持在适宜的温度范围内， 在此温度范围内烟油雾化产生的烟雾口 感好、 且不会产生有毒物质， 并且在烟油耗尽吋不会发生烧棉现象， 提高了用 户使用体验度。
[0092] 实施例二
[0093] 基于同一发明构思， 请参考图 11， 本发明实施例还提供了一种改变雾化器发热 丝等效电阻的方法， 应用于如实施例一所述的改变电子烟雾化器发热丝等效电 阻的切换电路中， 所述方法包括步骤：
[0094] Sl、 检测获取电子烟雾化器发热丝的温度值； [0095] S2、 在所述雾化器发热丝超温吋， 改变所述雾化器发热丝的等效电阻， 以减小 所述电子烟的电池杆给所述雾化器发热丝的供电电流， 或使所述电池杆断续为 所述雾化器发热丝供电， 以实现对超温雾化器发热丝的降温；
[0096] S3、 在所述雾化器发热丝温度恢复正常吋， 恢复所述雾化器发热丝的等效电阻 ， 使所述电池杆为所述雾化器发热丝正常供电加热， 从而控制所述雾化器发热 丝的发热温度处于预设温度范围内。
[0097] 根据上面的描述， 上述改变雾化器发热丝等效电阻的方法应用于上述改变雾化 器发热丝等效电阻的装置中， 所以， 该方法的实施过程与上述装置的一个或多 个实施例的实施原理中得以说明， 在此就不再一一赘述了。
[0098] 实施例三
[0099] 基于同一发明构思， 请参考图 12， 本发明实施例还提供了一种电子烟， 所述电 子烟包括： 电池杆 1和雾化器 2; 在雾化器 2中设置有温度检测电路 10， 以及与温 度检测电路 10和雾化器发热丝 30连接的切换幵关电路 20;
[0100] 温度检测电路 10， 用于检测获取雾化器发热丝 30的温度值， 并基于所述温度值
， 生成用于控制切换幵关电路 20的控制信号； 具体的， 温度检测电路 10通过热 敏电阻或热电偶进行温度检测；
[0101] 切换幵关电路 20， 用于接收所述控制信号； 在雾化器发热丝 30超温吋， 切换幵 关电路 20改变雾化器发热丝 30的等效电阻， 以减小电池杆 1给雾化器发热丝 30的 供电电流， 或使电池杆 1断续为雾化器发热丝 30供电， 以实现对超温雾化器发热 丝 30的降温；
[0102] 在雾化器发热丝 30温度恢复正常吋， 切换幵关电路 20恢复雾化器发热丝 30的等 效电阻， 使电池杆 1为雾化器发热丝 30正常供电加热， 从而控制雾化器发热丝 30 的发热温度处于预设温度范围内。
[0103] 在具体实施过程中， 温度检测电路 10通过热敏电阻进行温度检测， 温度检测电 路 10， 包括： 与雾化器发热丝 30并联的热敏电阻 101和分压电阻 102， 热敏电阻 1 01和分压电阻 102串联， 且热敏电阻 101和分压电阻 102的串联叠加电压恒定； 热 敏电阻 101用于检测获取雾化器发热丝 30的温度值， 热敏电阻 101的阻值与雾化 器发热丝 30的温度值成正比或成反比， 热敏电阻 101的两端电压与其阻值成正比 ； 具体的， 请参考图 3， R1为雾化器发热丝 30、 R14为热敏电阻 101、 R7为分压 电阻 102， 其中， R14与 R7串联； 在 R14和 R7构成的分压支路两端并联有稳压管 D 1， 以使所述分压支路两端的电压恒定； 另外， 图 5和图 7也采用这样的电路设计 原理。 图 3和图 5中采用的热敏电阻分别为 R14和 R16， 为 PTC型热敏电阻， 即温 度升高吋热敏电阻阻值增加， 且热敏电阻两端电压增加， 图 7中采用 NTC型热敏 电阻， 即温度升高吋热敏电阻阻值减小， 且热敏电阻两端电压减小； 热敏电阻 1 01的分压用于控制切换幵关电路 20改变雾化器发热丝 30的等效电阻， 以使雾化 器发热丝 30的发热温度处于预设温度范围内。
[0104] 在具体实施过程中， 切换幵关电路 20包括： 与雾化器发热丝 30串联或并联幵关 件； 温度检测电路 10通过所述控制信号控制幵关件处于断幵状态或导通状态， 以使切换幵关电路 20基于幵关件的不同工作状态， 改变雾化器发热丝 30的等效 电阻， 从而在雾化器发热丝 30温度过高吋， 使流过雾化器发热丝 30的电流减小 ， 以实现对雾化器发热丝 30降温。 下面基于幵关件与雾化器发热丝 30的不同连 接关系， 对本方案进行详细说明：
[0105] 方案一： 幵关件与雾化器发热丝 30并联
[0106] 1) 通过对雾化器发热丝 30进行短路的方式， 改变雾化器发热丝 30的等效电阻
[0107] 请参考图 2， 切换幵关电路 20包括： 与雾化器发热丝 30和温度检测电路 10连接 的第一幵关件 201 ; 温度检测电路 10通过所述控制信号控制第一幵关件 201处于 断幵状态或导通状态； 切换幵关电路 20基于第一幵关件 201的不同工作状态， 改 变雾化器发热丝 30的等效电阻。
[0108] 进一步， 仍请参考图 2， 第一幵关件 201与雾化器发热丝 30并联； 在雾化器发热 丝 30超温吋， 温度检测电路 10通过所述控制信号控制第一幵关件 201处于导通状 态， 雾化器发热丝 30被短路， 雾化器发热丝 30的等效电阻变为零， 所述电子烟 启动短路保护功能， 电池杆 1给雾化器发热丝 30供电电流减小为零， 以实现对超 温雾化器发热丝 30的降温。
[0109] 2) 通过为雾化器发热丝 30并联电阻的方式， 改变雾化器发热丝 30的等效电阻 [0110] 请参考图 4， ， 切换幵关电路 20包括： 与雾化器发热丝 30连接的调节电阻 202; 与雾化器发热丝 30、 调节电阻 202以及温度检测电路 10连接的第二幵关件 203; 温度检测电路 10通过所述控制信号控制第二幵关件 203处于断幵状态或导通状态 ； 切换幵关电路 20基于第二幵关件 203的不同工作状态， 控制调整调节电阻 202 与雾化器发热丝 30的连接方式， 以改变雾化器发热丝 30的等效电阻。
[0111] 进一步， 仍请参考图 4， 雾化器发热丝 30分别与调节电阻 202和第二幵关件 203 并联， 调节电阻 202和第二幵关件 203串联； 在雾化器发热丝 30超温吋， 温度检 测电路 10通过所述控制信号控制第二幵关件 203处于导通状态， 雾化器发热丝 30 的等效电阻变为雾化器发热丝 30与调节电阻 202并联后的总电阻， 当所述并联后 的总电阻小于预设电阻吋， 所述电子烟启动过流保护功能， 以减小电池杆 1给雾 化器发热丝 30的供电电流， 或使电池杆 1断续为雾化器发热丝 30供电， 以实现对 超温雾化器发热丝 30的降温。
[0112] 方案二： 幵关件与雾化器发热丝 30串联
[0113] 通过为雾化器发热丝 30串联电阻的方式， 改变雾化器发热丝 30的等效电阻：
[0114] 请参考图 6， 雾化器发热丝 30分别与调节电阻 202和第二幵关件 203串联， 调节 电阻 202和第二幵关件 203并联； 在雾化器发热丝 30超温吋， 温度检测电路 10通 过所述控制信号控制第二幵关件 203处于断幵状态， 雾化器发热丝 30的等效电阻 变为雾化器发热丝 30与调节电阻 202串联后的总电阻， 以减小电池杆 1给雾化器 发热丝 30的供电电流， 并实现对超温雾化器发热丝 30的降温。
[0115] 根据上面的描述， 上述电子烟包括上述改变雾化器发热丝等效电阻的切换电路 ， 所以， 该电子烟的实施方式与上述改变雾化器发热丝等效电阻的切换电路的 一个或多个实施例相同或相似， 在此就不再一一赘述了。
[0116] 本领域内的技术人员应明白， 本发明的实施例可提供为方法、 系统、 或计算机 程序产品。 因此， 本发明可采用完全硬件实施例、 完全软件实施例、 或结合软 件和硬件方面的实施例的形式。 而且， 本发明可采用在一个或多个其中包含有 计算机可用程序代码的计算机可用存储介质 （包括但不限于磁盘存储器、 CD-R 0M、 光学存储器等） 上实施的计算机程序产品的形式。
[0117] 这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在 计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理， 从 而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能的步骤。
[0118] 尽管已描述了本发明的优选实施例， 但本领域内的技术人员一旦得知了基本创 造性概念， 则可对这些实施例做出另外的变更和修改。 所以， 所附权利要求意 欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
[0119] 显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的 精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要求及其等 同技术的范围之内， 则本发明也意图包含这些改动和变型在内。
[0120]

Claims

权利要求书
[权利要求 1] 一种改变雾化器发热丝等效电阻的切换电路， 应用于对电子烟雾 化器发热丝的温度控制， 其特征在于， 所述切换电路包括： 设置 在所述电子烟的雾化器中的温度检测电路 （10) ， 以及与所述温 度检测电路 （10) 和所述雾化器发热丝连接的切换幵关电路 （20 所述温度检测电路 （10) ， 用于检测获取所述雾化器发热丝的温 度值， 并基于所述温度值， 生成用于控制所述切换幵关电路 （20 ) 的控制信号；
所述切换幵关电路 （20) ， 用于接收所述控制信号； 在所述雾化 器发热丝超温吋， 所述切换幵关电路 （20) 改变所述雾化器发热 丝的等效电阻， 以减小所述电子烟的电池杆给所述雾化器发热丝 的供电电流， 或使所述电池杆断续为所述雾化器发热丝供电， 以 实现对超温雾化器发热丝的降温；
在所述雾化器发热丝温度恢复正常吋， 所述切换幵关电路 （20) 恢复所述雾化器发热丝的等效电阻， 使所述电池杆为所述雾化器 发热丝正常供电加热， 从而控制所述雾化器发热丝的发热温度处 于预设温度范围内。
[权利要求 2] 如权利要求 1所述的温度控制装置， 其特征在于， 所述温度检测电 路 （10) 通过热敏电阻或热电偶进行温度检测。
[权利要求 3] 如权利要求 1所述的温度控制装置， 其特征在于， 所述切换幵关电 路 （20) 包括：
与所述雾化器发热丝和所述温度检测电路 （10) 连接的第一幵关 件 （201) ；
所述温度检测电路 （10) 通过所述控制信号控制所述第一幵关件
(201) 处于断幵状态或导通状态； 所述切换幵关电路 （20) 基于 所述第一幵关件 （201) 的不同工作状态， 改变所述雾化器发热丝 的等效电阻。
[权利要求 4] 如权利要求 3所述的温度控制装置， 其特征在于， 所述第一幵关件
(201) 与所述雾化器发热丝并联； 在所述雾化器发热丝超温吋， 所述温度检测电路 （10) 通过所述控制信号控制所述第一幵关件
(201) 处于导通状态， 所述雾化器发热丝被短路， 所述雾化器发 热丝的等效电阻变为零， 所述电子烟启动短路保护功能， 所述电 池杆给所述雾化器发热丝供电电流减小为零， 以实现对超温雾化 器发热丝的降温。
[权利要求 5] 如权利要求 1所述的温度控制装置， 其特征在于， 所述切换幵关电 路 （20) 包括：
与所述雾化器发热丝连接的调节电阻 （202) ；
与所述雾化器发热丝、 所述调节电阻 （202) 以及所述温度检测电 路 （10) 连接的第二幵关件 （203) ；
所述温度检测电路 （10) 通过所述控制信号控制所述第二幵关件
(203) 处于断幵状态或导通状态； 所述切换幵关电路 （20) 基于 所述第二幵关件 （203) 的不同工作状态， 控制调整所述调节电阻
(202) 与所述雾化器发热丝的连接方式， 以改变所述雾化器发热 丝的等效电阻。
[权利要求 6] 如权利要求 5所述的温度控制装置， 其特征在于， 所述雾化器发热 丝分别与所述调节电阻 （202) 和所述第二幵关件 （203) 并联， 所述调节电阻 （202) 和所述第二幵关件 （203) 串联； 在所述雾化器发热丝超温吋， 所述温度检测电路 （10) 通过所述 控制信号控制所述第二幵关件 （203) 处于导通状态， 所述雾化器 发热丝的等效电阻变为所述雾化器发热丝与所述调节电阻 （202) 并联后的总电阻， 在所述并联后的总电阻小于预设电阻吋， 所述 电子烟启动过流保护功能， 以减小所述电池杆给所述雾化器发热 丝的供电电流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实现对超温雾化器发热丝的降温。
[权利要求 7] 如权利要求 5所述的温度控制装置， 其特征在于， 所述雾化器发热 丝分别与所述调节电阻 （202) 和所述第二幵关件 （203) 串联， 所述调节电阻 （202) 和所述第二幵关件 （203) 并联； 在所述雾化器发热丝超温吋， 所述温度检测电路 （10) 通过所述 控制信号控制所述第二幵关件 （203) 处于断幵状态， 所述雾化器 发热丝的等效电阻变为所述雾化器发热丝与所述调节电阻 （202) 串联后的总电阻， 以减小所述电子烟的电池杆给所述雾化器发热 丝的供电电流， 并实现对超温雾化器发热丝的降温。
[权利要求 8] —种改变雾化器发热丝等效电阻的方法， 应用于改变电子烟雾化 器发热丝等效电阻的切换电路中， 其特征在于， 所述方法包括：
51、 检测获取电子烟雾化器发热丝的温度值；
52、 在所述雾化器发热丝超温吋， 改变所述雾化器发热丝的等效 电阻， 以减小所述电子烟的电池杆给所述雾化器发热丝的供电电 流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实现对超 温雾化器发热丝的降温；
53、 在所述雾化器发热丝温度恢复正常吋， 恢复所述雾化器发热 丝的等效电阻， 使所述电池杆为所述雾化器发热丝正常供电加热 ， 从而控制所述雾化器发热丝的发热温度处于预设温度范围内。
[权利要求 9] 一种电子烟， 其特征在于， 所述电子烟包括： 电池杆和雾化器； 在所述雾化器中设置有温度检测电路 （10) ， 以及与所述温度检 测电路 （10) 和雾化器发热丝连接的切换幵关电路 （20) ； 所述温度检测电路 （10) ， 用于检测获取所述雾化器发热丝的温 度值， 并基于所述温度值， 生成用于控制所述切换幵关电路 （20 ) 的控制信号；
所述切换幵关电路 （20) ， 用于接收所述控制信号； 在所述雾化 器发热丝超温吋， 所述切换幵关电路 （20) 改变所述雾化器发热 丝的等效电阻， 以减小所述电池杆给所述雾化器发热丝的供电电 流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实现对超 温雾化器发热丝的降温； 在所述雾化器发热丝温度恢复正常吋， 所述切换幵关电路 （20) 恢复所述雾化器发热丝的等效电阻， 使所述电池杆为所述雾化器 发热丝正常供电加热， 从而控制所述雾化器发热丝的发热温度处 于预设温度范围内。
[权利要求 10] 如权利要求 9所述的电子烟， 其特征在于， 所述温度检测电路 （10
) 通过热敏电阻或热电偶进行温度检测。
[权利要求 11] 如权利要求 10所述的电子烟， 其特征在于， 所述温度检测电路 （1
0) 通过热敏电阻进行温度检测， 所述温度检测电路 （10) ， 包括 与所述雾化器发热丝并联的热敏电阻 （101) 和分压电阻 （102) ， 所述热敏电阻 （101) 和所述分压电阻 （102) 串联， 且所述热 敏电阻 （101) 和所述分压电阻 （102) 的串联叠加电压恒定； 所述热敏电阻 （101) 用于检测获取所述雾化器发热丝的温度值， 所述热敏电阻 （101) 的阻值与所述雾化器发热丝的温度值成正比 或成反比， 所述热敏电阻 （101) 的两端电压与其阻值成正比； 所述热敏电阻 （101) 的分压用于控制所述切换幵关电路 （20) 改 变所述雾化器发热丝的等效电阻， 以使所述雾化器发热丝的发热 温度处于预设温度范围内。
[权利要求 12] 如权利要求 9所述的电子烟， 其特征在于， 所述切换幵关电路 （20
) 包括：
与所述雾化器发热丝和所述温度检测电路 （10) 连接的第一幵关 件 （201) ；
所述温度检测电路 （10) 通过所述控制信号控制所述第一幵关件
(201) 处于断幵状态或导通状态； 所述切换幵关电路 （20) 基于 所述第一幵关件 （201) 的不同工作状态， 改变所述雾化器发热丝 的等效电阻。
[权利要求 13] 如权利要求 12所述的电子烟， 其特征在于， 所述第一幵关件 （201
) 与所述雾化器发热丝并联； 在所述雾化器发热丝超温吋， 所述 温度检测电路 （10) 通过所述控制信号控制所述第一幵关件 （201
) 处于导通状态， 所述雾化器发热丝被短路， 所述雾化器发热丝 的等效电阻变为零， 所述电子烟启动短路保护功能， 所述电池杆 给所述雾化器发热丝供电电流减小为零， 以实现对超温雾化器发 热丝的降温。
[权利要求 14] 如权利要求 9所述的电子烟， 其特征在于， 所述切换幵关电路 （20
) 包括：
与所述雾化器发热丝连接的调节电阻 （202) ；
与所述雾化器发热丝、 所述调节电阻 （202) 以及所述温度检测电 路 （10) 连接的第二幵关件 （203) ；
所述温度检测电路 （10) 通过所述控制信号控制所述第二幵关件 (203) 处于断幵状态或导通状态； 所述切换幵关电路 （20) 基于 所述第二幵关件 （203) 的不同工作状态， 控制调整所述调节电阻 (202) 与所述雾化器发热丝的连接方式， 以改变所述雾化器发热 丝的等效电阻。
[权利要求 15] 如权利要求 14所述的电子烟， 其特征在于， 所述雾化器发热丝分 别与所述调节电阻 （202) 和所述第二幵关件 （203) 并联， 所述 调节电阻 （202) 和所述第二幵关件 （203) 串联；
在所述雾化器发热丝超温吋， 所述温度检测电路 （10) 通过所述 控制信号控制所述第二幵关件 （203) 处于导通状态， 所述雾化器 发热丝的等效电阻变为所述雾化器发热丝与所述调节电阻 （202) 并联后的总电阻， 当所述并联后的总电阻小于预设电阻吋， 所述 电子烟启动过流保护功能， 以减小所述电池杆给所述雾化器发热 丝的供电电流， 或使所述电池杆断续为所述雾化器发热丝供电， 以实现对超温雾化器发热丝的降温。
[权利要求 16] 如权利要求 14所述的电子烟， 其特征在于， 所述雾化器发热丝分 别与所述调节电阻 （202) 和所述第二幵关件 （203) 串联， 所述 调节电阻 （202) 和所述第二幵关件 （203) 并联； 在所述雾化器发热丝超温吋， 所述温度检测电路 （10) 通过所述 控制信号控制所述第二幵关件 （203) 处于断幵状态， 所述雾化器 发热丝的等效电阻变为所述雾化器发热丝与所述调节电阻 （202) 串联后的总电阻， 以减小所述电池杆给所述雾化器发热丝的供电 电流， 并实现对超温雾化器发热丝的降温。
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