WO2016115890A1 - 温控系统及其控制方法、含有温控系统的电子烟 - Google Patents

温控系统及其控制方法、含有温控系统的电子烟 Download PDF

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Publication number
WO2016115890A1
WO2016115890A1 PCT/CN2015/087597 CN2015087597W WO2016115890A1 WO 2016115890 A1 WO2016115890 A1 WO 2016115890A1 CN 2015087597 W CN2015087597 W CN 2015087597W WO 2016115890 A1 WO2016115890 A1 WO 2016115890A1
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WO
WIPO (PCT)
Prior art keywords
temperature
temperature control
heating element
electronic cigarette
controller
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2015/087597
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English (en)
French (fr)
Inventor
邱伟华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Joyetech Changzhou Electronics Co Ltd
Original Assignee
Joyetech Changzhou Electronics Co Ltd
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 Joyetech Changzhou Electronics Co Ltd filed Critical Joyetech Changzhou Electronics Co Ltd
Priority to KR1020177023440A priority Critical patent/KR20170107518A/ko
Priority to JP2017557242A priority patent/JP6483283B2/ja
Priority to EP15878559.2A priority patent/EP3249488B1/en
Publication of WO2016115890A1 publication Critical patent/WO2016115890A1/zh
Priority to US15/623,396 priority patent/US10321718B2/en
Anticipated expiration legal-status Critical
Priority to US16/395,576 priority patent/US11454996B2/en
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices
    • 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
    • A24F40/57—Temperature control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B6/00—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential
    • G05B6/02—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential electric
    • 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
    • G05D23/1917—Control of temperature characterised by the use of electric means using digital means
    • 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
    • G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
    • 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
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • 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
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • G05D23/2401—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor using a heating element as a sensing element
    • 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 invention relates to the field of electronic cigarette technology, in particular to a temperature control system and a control method thereof, and an electronic cigarette containing the temperature control system.
  • E-cigarette also known as virtual cigarette
  • the temperature generated by the heat generating component becomes higher and higher. Excessive temperature of the heating element may cause the smoke liquid, the smoke paste or the tobacco to generate and release substances harmful to human health, thereby affecting the user's knowledge of the electronic cigarette.
  • an object of the present invention is to provide a temperature control system capable of controlling the temperature of a heat generating component within a reasonable range, a control method thereof, and an electronic cigarette including the temperature control system.
  • An electronic cigarette temperature control system includes a power supply device, a heating element, a temperature sensing element, and a controller.
  • the power supply device is electrically connected to the heating element and the controller, respectively.
  • the temperature sensing element is electrically connected to the controller for sensing a change in the temperature T of the heating element and feeding back to the controller.
  • the controller is configured to calculate the temperature t of the temperature sensing element according to the relevant physical quantity x of the temperature sensing element, and calculate the temperature T of the heating element from the temperature t of the temperature sensing element.
  • the temperature sensing element is one or two of a PTC thermistor, an NTC thermistor, a bimetal, a thermocouple, a quartz crystal temperature sensor, an optical fiber temperature sensor, an infrared temperature sensor, and a PN junction temperature sensor. Or any combination of two or more.
  • the temperature sensing element is disposed adjacent to the heating element.
  • controller is further configured to compare the temperature T of the heating element with the upper operating temperature T H and the lower operating temperature T L , and finally control the output voltage/power of the power supply device to the heating element according to the comparison result.
  • the related physical quantity x is one, two or a combination of two or more of temperature t, resistance, voltage, current, resonant frequency, and optical power.
  • the temperature sensing element is a PTC thermistor
  • the related physical quantity x is a resistance value R T of the PTC thermistor.
  • controller includes a detecting unit, an arithmetic unit and a control unit that are electrically connected in sequence;
  • a detecting unit electrically connected to the temperature sensing element for detecting a voltage V f across the temperature sensing element and feeding back V f to the arithmetic unit;
  • the control unit is configured to compare the temperature T of the heating element with the pre-stored upper operating temperature upper limit T H and the operating temperature lower limit T L , and control the output voltage/power of the power supply device to the heating element according to the comparison result.
  • the electronic cigarette temperature control system further includes an input device electrically connected to the controller, wherein the input device is configured for the user to input a desired target temperature T D , T L ⁇ T D ⁇ T H.
  • the electronic cigarette temperature control system further includes a temperature control switch connected in series between the power supply device and the heating element, and the temperature control is performed when the temperature sensing element and/or the controller fails.
  • the switch also has the effect of temperature control.
  • An electronic cigarette temperature control system includes a power supply device, a temperature control switch and a heating element, which are electrically connected in sequence, and an operating temperature T M of the temperature control switch is lower than an operating temperature of the electronic cigarette temperature control system Upper limit T H .
  • the temperature control switch is one of a mechanical temperature control switch, an electronic temperature control switch, a temperature relay, or any combination of two or more.
  • the mechanical temperature control switch is a steam pressure type temperature control switch, a liquid expansion type temperature control switch, a gas adsorption type temperature control switch or a metal expansion type temperature control switch, and the electronic temperature control switch is a resistance type temperature switch.
  • the temperature t S of the temperature control switch increases as the temperature T of the heating element increases.
  • the temperature control switch communicates with the circuit between the power supply device and the heating element, and the heating element In normal operation, the temperature T of the heating element rises.
  • t S >T M the temperature control switch turns off the circuit between the power supply device and the heating element, the heating element stops working, and the temperature T of the heating element naturally drops.
  • the temperature control switch is disposed adjacent to the heat generating component.
  • An electronic cigarette temperature control system includes a power supply device, a heating element, a controller, and a temperature control switch, wherein the controller is electrically connected to the power supply device and the temperature control switch, respectively, the heating element and the power supply The device is electrically connected, and the temperature control switch is disposed near the heating element, and the operating temperature T M of the temperature control switch is lower than the upper operating temperature T H of the electronic cigarette temperature control system.
  • the temperature control switch is one of a mechanical temperature control switch, an electronic temperature control switch, a temperature relay, or any combination of two or more.
  • the mechanical temperature control switch is a steam pressure type temperature control switch, a liquid expansion type temperature control switch, a gas adsorption type temperature control switch or a metal expansion type temperature control switch, and the electronic temperature control switch is a resistance type temperature switch.
  • the temperature t S of the temperature control switch increases as the temperature T of the heating element increases.
  • the temperature control switch generates action A; when t S >T M , the temperature The control switch generates action B, the controller detects the action of the temperature control switch, and controls the output voltage/power of the power supply device to the heating element according to the action.
  • the action A may be a temperature control switch closure or a temperature control switch disconnection, and the action B is opposite to the action A.
  • the temperature control switch is disposed adjacent to the heat generating component.
  • An electronic cigarette temperature control system includes a power supply device, a heating element, and a controller, wherein the power supply device is electrically connected to the heating element and the controller, and the heating element is electrically connected to the controller.
  • the heat generating component has a temperature coefficient of resistance characteristic, and the heat generating component itself directly functions as a temperature sensing element, and feeds back a change in its own temperature T to the controller.
  • the heat generating component may be made of one, two or more of platinum, copper, nickel, titanium, iron, a ceramic-based PTC material, and a polymer-based PTC material, and the resistance value R L
  • the temperature T of the heating element increases as the temperature T increases.
  • the controller is configured to calculate the temperature T of the heating element according to the resistance value R L of the heating element, and further compare the temperature T of the heating element with the upper working temperature T H and the lower operating temperature T L , and compare according to As a result, the output voltage/power of the power supply device to the heat generating component is controlled.
  • the electronic cigarette temperature control system further includes a first fixed value resistor R 1 disposed between the power supply device and the heating element, and the voltage across the first fixed value resistor R 1 is V a -V b , and the heat is generated.
  • the voltage across the element is V b
  • the current through the heating element is (V a -V b )/R 1
  • the resistance of the heating element R L R 1 *V b /(V a -V b ).
  • the electronic cigarette temperature control system further includes a second fixed value resistor R 2 , an amplifier, a third fixed value resistor R 3 and a fourth fixed value resistor R 4 , and the first fixed value resistor R 1 is sequentially connected in series
  • the second fixed value resistor R 2 , the amplifier and the third fixed value resistor R 3 are connected in parallel in parallel
  • controller includes a detecting unit, an arithmetic unit and a control unit that are electrically connected in sequence;
  • Detecting means connected to the fourth fixed resistor electrically R 4, supply voltage V c for the detection of the fourth fixed resistor across R 4, and fed back to the arithmetic unit V c;
  • the control unit is configured to compare the temperature T of the heating element with the pre-stored upper operating temperature upper limit T H and the operating temperature lower limit T L , and control the output voltage/power of the power supply device to the heating element according to the comparison result.
  • the electronic cigarette temperature control system further includes an input device electrically connected to the controller, wherein the input device is configured for the user to input a desired target temperature T D , T L ⁇ T D ⁇ T H.
  • the electronic cigarette temperature control system further includes a temperature control switch connected in series between the power supply device and the heating element, and when the heating element and/or the controller fails, the temperature control switch It also has the effect of temperature control.
  • the electronic cigarette temperature control system further includes a temperature sensing element or a temperature control switch electrically connected to the controller.
  • the temperature sensing element or the temperature control switch is disposed adjacent to the heating element.
  • An electronic cigarette comprising any one of the above electronic cigarette temperature control systems.
  • a temperature control method is applied to an electronic cigarette temperature control system or an electronic cigarette having a power supply device, a heating element, a controller, and a temperature sensing element, and the temperature control method includes the following steps:
  • the controller detects a relevant physical quantity x of the temperature sensing element
  • the controller calculates the temperature T of the starting thermal element according to the relevant physical quantity x of the temperature sensing element
  • the controller compares the temperature T of the heating element with a pre-stored upper operating temperature upper limit T H and an operating temperature lower limit T L ;
  • the controller adjusts an output voltage/power of the power supply device to the heating element according to the comparison result
  • the heating element operates for a period of time at a regulated output voltage/power.
  • the step of adjusting, by the controller, the output voltage/power of the power generating device to the heating element according to the comparison result further includes: when the temperature of the heating element is greater than the upper operating temperature limit T H , then the controller The power supply device is controlled to reduce the output voltage/power to the heating element.
  • the step of adjusting, by the controller, the output voltage/power of the heating device to the heating element according to the comparison result further comprises: when the temperature of the heating element is less than the lower limit of the operating temperature T L , and the power supply device is to the heating element When the output voltage/power has reached the maximum output voltage/power, the controller controls the power supply to maintain the output voltage/power to the heating element.
  • the step of adjusting, by the controller, the output voltage/power of the heating device to the heating element according to the comparison result further comprises: when the temperature of the heating element is less than the lower limit of the operating temperature T L , and the power supply device is to the heating element When the output voltage/power does not reach the maximum output voltage/power, the controller controls the power supply to increase the output voltage/power to the heating element.
  • the electronic cigarette temperature control system or the electronic cigarette may further include an input device, the temperature control method further comprising inputting a target temperature through the input device before the step of the controller detecting the relevant physical quantity x of the temperature sensing element T D , T L ⁇ T D ⁇ T H ; the target temperature T D is used as a comparison term instead of the pre-stored upper operating temperature upper limit T H and the lower operating temperature T L , the controller sets the temperature T of the heating element to the target temperature T D is compared.
  • a temperature control method is applied to an electronic cigarette temperature control system or an electronic cigarette having a power supply device, a heating element and a temperature control switch, and the temperature control method comprises the following steps: the temperature control switch determines the temperature of the temperature control switch The relationship between S and the operating temperature T M , when the temperature t S of the temperature control switch is less than the operating temperature T M , the temperature control switch communicates with the circuit between the power supply device and the heating element, the heating element works normally, and the temperature of the heating element T is raised; when the temperature t S of the temperature control switch is greater than its operating temperature T M , the temperature control switch turns off the circuit between the power supply device and the heating element, the heating element stops working, and the temperature T of the heating element naturally drops.
  • a temperature control method is applied to an electronic cigarette temperature control system or an electronic cigarette having a power supply device, a heating element, a controller, and a temperature control switch, wherein the temperature control method comprises the following steps: the controller determines according to the action of the temperature control switch The relationship between the temperature t S of the temperature control switch and its operating temperature T M , when the temperature t S of the temperature control switch is less than T M , the temperature control switch generates action A, when the temperature t S of the temperature control switch is greater than T M , the temperature control The switch generates action B, the controller detects the action of the temperature control switch, and controls the output voltage/power of the power supply device to the heating element according to the different action, and the heating element operates under a certain adjusted output voltage/power for a period of time. Wherein the action A is closed or open, and the action A is opposite to the action B.
  • the step of adjusting, by the controller, the output voltage/power of the power supply device to the heating element according to the action of the temperature control switch further comprises: when the temperature control switch generates the action B, the controller controls the power supply device to reduce the pair Output voltage / power of the heating element.
  • step of adjusting, by the controller, the output voltage/power of the power supply device to the heating element according to the action of the temperature control switch further comprises: when the temperature control switch generates the action A, and the output voltage of the power supply device to the heating element When the power has reached the maximum output voltage/power, the controller controls the power supply to maintain the output voltage/power to the heating element.
  • step of adjusting, by the controller, the output voltage/power of the power supply device to the heating element according to the action of the temperature control switch further comprises: when the temperature control switch generates the action A, and the output voltage of the power supply device to the heating element When the power is less than the maximum output voltage/power, the controller controls the power supply to increase the output voltage/power to the heating element.
  • a temperature control method is applied to an electronic cigarette temperature control system or an electronic cigarette having a power supply device, a heating element, and a controller, and the temperature control method includes the following steps:
  • the controller calculates a resistance value R L of the heating element
  • the controller calculates the resistance value R L of the heating element again after the cigarette is smoked;
  • the controller determines whether the heating element has a temperature coefficient of resistance characteristic
  • the controller determines whether the user selects the temperature control mode
  • the controller calculates a resistance value R L of the heating element
  • the controller calculates the temperature T of the starting thermal element according to the resistance value R L of the heating element
  • the controller compares the temperature T of the heating element with a pre-stored upper operating temperature upper limit T H and an operating temperature lower limit T L ;
  • the controller adjusts an output voltage/power of the power supply device to the heating element according to the comparison result
  • the heating element operates for a period of time at a regulated output voltage/power.
  • the step of determining, by the controller, whether the heating element has a temperature coefficient of resistance characteristic further comprises: when the heating element does not have a temperature coefficient of resistance characteristic, the controller automatically controls the constant voltage of the heating element to the heating element/ The power output or the voltage/power output manually selected by the user; when the heating element has the temperature coefficient of resistance characteristic, the user can select whether to enter the temperature control mode.
  • the step of whether the user selects the temperature control mode further comprises: when the user does not select the temperature control mode, the controller automatically controls the power supply device to the constant voltage/power output of the heating element or manually selected according to the user. Voltage/power output; when the user selects the temperature control mode, the controller calculates the resistance value R L of the heating element.
  • the step of adjusting, by the controller, the output voltage/power of the power generating device to the heating element according to the comparison result further includes: when the temperature of the heating element is greater than the upper operating temperature limit T H , then the controller The power supply device is controlled to reduce the output voltage/power to the heating element.
  • the step of adjusting, by the controller, the output voltage/power of the heating device to the heating element according to the comparison result further comprises: when the temperature of the heating element is less than the lower limit of the operating temperature T L , and the power supply device is to the heating element When the output voltage/power has reached the maximum output voltage/power, the controller controls the power supply to maintain the output voltage/power to the heating element.
  • the step of adjusting, by the controller, the output voltage/power of the heating device to the heating element according to the comparison result further comprises: when the temperature of the heating element is less than the lower limit of the operating temperature T L , and the power supply device is to the heating element When the output voltage/power is less than the maximum output voltage/power, the controller controls the power supply to increase the output voltage/power to the heating element.
  • the temperature control system and the control method thereof, and the electronic cigarette containing the temperature control system can keep the temperature of the heating element within a reasonable range, and avoid the generation and release of substances harmful to human health, thus also facilitating Maintain the taste, save energy, avoid overheating of the electronic cigarette housing and prevent thermal aging of the internal components of the electronic cigarette;
  • the user can control the temperature with or without the atomizing device of the heating element having the temperature coefficient of resistance characteristic, and the electronic cigarette temperature control system and the electron thereof are added.
  • the versatility of smoke By adding a temperature sensing element/temperature control switch and a controller, the user can control the temperature with or without the atomizing device of the heating element having the temperature coefficient of resistance characteristic, and the electronic cigarette temperature control system and the electron thereof are added.
  • FIG. 1 is a circuit diagram of an electronic cigarette temperature control system according to a first embodiment of the present invention.
  • FIG. 2 is a specific circuit diagram of an electronic cigarette temperature control system according to a first embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing the working flow of the electronic cigarette temperature control system according to the first embodiment of the present invention.
  • FIG. 4 is a circuit diagram of an electronic cigarette temperature control system according to a second embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing the working flow of an electronic cigarette temperature control system according to a second embodiment of the present invention.
  • Fig. 6 is a circuit diagram of an electronic cigarette temperature control system according to a third embodiment of the present invention.
  • Fig. 7 is a circuit diagram of a temperature control system for an electronic cigarette according to a fourth embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing the working flow of an electronic cigarette temperature control system according to a fourth embodiment of the present invention.
  • Fig. 9 is a circuit diagram of a temperature control system for an electronic cigarette according to a fifth embodiment of the present invention.
  • FIG. 10 is a specific circuit diagram of an electronic cigarette temperature control system according to a fifth embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing the working flow of an electronic cigarette temperature control system according to a sixth embodiment of the present invention.
  • FIG. 12 is a circuit schematic diagram of an electronic cigarette temperature control system according to a sixth embodiment of the present invention.
  • FIG. 13 is a schematic diagram showing the working flow of an electronic cigarette temperature control system according to a sixth embodiment of the present invention.
  • Figure 14 is a circuit schematic diagram of an electronic cigarette temperature control system according to a seventh embodiment of the present invention.
  • Figure 15 is a circuit schematic diagram of an electronic cigarette temperature control system according to an eighth embodiment of the present invention.
  • Figure 16 is a circuit schematic diagram of an electronic cigarette temperature control system according to a ninth embodiment of the present invention.
  • Figure 17 is a schematic view of an electronic cigarette according to a tenth embodiment of the present invention.
  • DC/DC power supply 112, 512
  • Heating element 12, 32, 52
  • Temperature sensing circuit 13, 83, 93
  • Arithmetic unit 142, 542
  • Control unit 143, 543
  • Input device 25, 65
  • Temperature control switch 36, 76
  • the present invention provides an electronic cigarette temperature control system 100 including a power supply device 11 , a heating element 12 , a temperature sensing element 13 , and a controller 14 .
  • the power supply device 11 is electrically connected to the heating element 12 and the controller 14, respectively.
  • the temperature sensing element 13 is electrically connected to the controller 14 . After the heating element 12 is electrically driven by the power supply device 11, the smoke liquid, the smoke paste or the tobacco is heated to generate smoke, so that the user can obtain a smoking experience.
  • the temperature sensing element 13 is used to sense a change in the temperature T of the heating element 12, and the temperature t of the temperature sensing element 13 follows The temperature T of the heating element 12 rises and rises, thereby causing a change in the relevant physical quantity x of the temperature sensing element 13, and the controller 11 can detect the relevant physical x and further calculate the temperature T of the starting thermal element 12.
  • the temperature sensing element 13 is disposed in the electronic cigarette. Preferably, the temperature sensing element 13 is disposed adjacent to the heating element 12.
  • the temperature sensing element 13 may be one, two or two of a PTC thermistor, an NTC thermistor, a bimetal, a thermocouple, a quartz crystal temperature sensor, a fiber temperature sensor, an infrared temperature sensor, and a PN junction temperature sensor. Combination of two or more.
  • the number of the temperature sensing elements 13 may be one, two or more. In the case where the spatial position permits, a plurality of the same type and/or different temperature sensing elements 13 can be arranged at different positions. On the one hand, the temperature T of the starting thermal element can be calculated by each of the temperature sensing elements 13 respectively.
  • the average value can more accurately reflect the temperature T of the heating element; on the other hand, when one of the temperature sensing elements fails, the controller 14 can make a judgment in time to eliminate the unreliable value, so that the electronic cigarette
  • the temperature control system 100 still works normally and guarantees high temperature control accuracy.
  • the related physical quantity x may be one, two or a combination of two or more of temperature t, resistance, voltage, current, resonance frequency, optical power, and the like, depending on the temperature sensing element 13.
  • the controller 14 first calculates the temperature t of the temperature sensing element 13 according to the relevant physical quantity x of the temperature sensing element 13, and calculates the temperature T of the heating element 12 according to the temperature t of the temperature sensing element 13, and then The temperature T of the heating element 12 is compared with the upper operating temperature T H and the lower operating temperature T L , and finally the output voltage/power of the power supply device 11 to the heating element 12 is controlled based on the comparison result.
  • the temperature sensing element 13 is a PTC thermistor R T .
  • the temperature t of the temperature sensing element 13 also rises, which in turn causes the resistance value R T of the temperature sensing element 13 to rise. That is, in the present embodiment, the relevant physical quantity x of the temperature sensing element 13 is the resistance value R T .
  • the temperature sensing element 13 may be connected in series with a constant value resistor R 5 .
  • the voltage across R 5 is V e -V f , so the current through R 5 is (V e -V f )/R 5 .
  • the controller 14 includes a detecting unit 141, an arithmetic unit 142, and a control unit 143 that are electrically connected in sequence.
  • the detecting unit 141 is electrically connected to the temperature sensing element 13 and can detect the voltage V f across the temperature sensing element 13 and feed back V f to the arithmetic unit 142 .
  • the control unit 143 compares the temperature T of the heating element 12 with the pre-stored upper operating temperature upper limit T H and the operating temperature lower limit T L , and controls the output voltage/power of the DC/DC power source 112 to the heating element 12 according to the comparison result. .
  • the power supply device 11 includes a battery 111 and a DC/DC power supply 112 and a voltage stabilization circuit 113 that are electrically connected to the battery 111, respectively.
  • the battery 111 can be charged to reserve sufficient electrical energy and can be discharged to the DC/DC power supply 112 and the voltage stabilizing circuit 113, respectively.
  • the DC/DC power source 112 is electrically connected to the heat generating component 12 for supplying the voltage of the battery 111 to the heat generating component 12 after being raised.
  • the voltage stabilizing circuit 113 is electrically connected to the controller 14 to provide the controller 14 with a stable voltage V e .
  • the battery 111 is a lithium ion battery. It can be understood that the DC/DC power source 112 and the voltage stabilizing circuit 113 may be omitted according to actual conditions in other embodiments, or other circuits may be used instead of the DC/DC power source 112 and/or the voltage stabilizing circuit 113.
  • the electronic cigarette temperature control system 100 of the present invention includes the following steps in operation:
  • step S101 the controller 14 detects the relevant physical quantity x of the temperature sensing element 13, and then proceeds to step S102.
  • step S102 the controller 14 calculates the temperature T of the heat generating element 12 based on the relevant physical quantity x of the temperature sensing element 13, and then proceeds to step S103.
  • step S103 the controller 14 compares the temperature T of the heating element 12 with the upper operating temperature T H and the lower operating temperature T L . If T>T H , the process proceeds to step S104; if T ⁇ T L , the process proceeds to step S106.
  • step S104 the controller 14 controls the power supply device 11 to reduce the output voltage/power to the heat generating component 12, and then proceeds to step S105.
  • step S105 the heating element 12 operates for a period of time at the output voltage/power, and then returns to step S102 and repeats the subsequent process.
  • the working period may be 1 second.
  • step S106 the controller 14 determines whether the output voltage/power of the heating element 12 by the power supply device 11 has reached the maximum output voltage/power. If the result of the determination is YES, the process proceeds to step S107; if the result of the determination is NO, the process proceeds to step S108.
  • step S107 the controller 14 controls the power supply device 11 to maintain the output voltage/power to the heat generating element 12, and then proceeds to step S105.
  • step S108 the controller 14 controls the power supply device 11 to increase the output voltage/power to the heat generating component 12, and then proceeds to step S105.
  • a display screen component may be further added for displaying information about the operating temperature of the electronic cigarette such as the temperature T of the heating element, the battery power, the operating voltage, and the output power.
  • the present invention provides an electronic cigarette temperature control system 200.
  • This embodiment differs from the first embodiment in that, in the present embodiment, an input device 25 electrically connected to the controller 14 is added.
  • the user can input the desired target temperature T D (T L ⁇ T D ⁇ T H ) through the input device 25.
  • the heating element 12 is maintained to operate at the temperature T D ⁇ ⁇ t'.
  • ⁇ t' represents a temperature deviation
  • the response of the power supply device 11, the heat generating element 12, the temperature sensing element 13, and the controller 14 has a certain hysteresis.
  • the electronic cigarette temperature control system 200 of the present invention includes the following steps in operation:
  • step S201 the user inputs a desired target temperature T D (T L ⁇ T D ⁇ T H ) through the input device 25, and then proceeds to step S202.
  • step S202 the controller 14 detects the relevant physical quantity x of the temperature sensing element 13, and then proceeds to step S203.
  • step S203 the controller 14 calculates the temperature T of the heat generating element 12, and then proceeds to step S204.
  • step S204 the controller 14 compares the temperature T of the heat generating component 12 with T D . If T>T D , the process proceeds to step S205; if T ⁇ T D , the process proceeds to step S207.
  • step S205 the controller 14 controls the power supply device 11 to reduce the output voltage/power to the heat generating component 12, and then proceeds to step S206.
  • step S206 the heating element 12 operates for a period of time at the output voltage/power, and then returns to step S202 and repeats the subsequent process.
  • the working period may be 1 second.
  • step S207 the controller 14 determines whether the output voltage/power of the heating element 12 by the power supply device 11 has reached the maximum output voltage/power. If the result of the determination is YES, the process proceeds to step S208; if the result of the determination is NO, the process proceeds to step S209.
  • step S208 the controller 14 controls the power supply device 11 to maintain the output voltage/power to the heat generating component 12, and then proceeds to step S206.
  • step S209 the controller 14 controls the power supply device 11 to increase the output voltage/power to the heat generating component 12, and then proceeds to step S206.
  • the working steps of the electronic cigarette temperature control system 200 are the same as those in the first embodiment, and details are not described herein again.
  • a display screen component may be further added for displaying the target temperature T D set by the user, the temperature T of the heating element, the battery power, the operating voltage, the output power, and the like. Information about the working status of e-cigarettes.
  • the present invention provides an electronic cigarette temperature control system 300 including a power supply device 31 , a temperature control switch 36 , and a heating element 32 that are electrically connected in sequence. After the heating element 32 is electrically driven by the power supply device 31, the smoke liquid, the smoke paste or the tobacco is heated to generate smoke, so that the user can obtain a smoking experience.
  • the temperature control switch 36 is for connecting/disconnecting the circuit between the power supply device 31 and the heat generating component 32 under the action of temperature. As the temperature T of the heating element 32 rises, the temperature t S of the temperature control switch 36 also rises. When t S ⁇ T M , the temperature control switch 36 communicates with the circuit between the power supply device 31 and the heating element 32, the heating element 32 operates normally, the temperature T of the heating element 32 rises, and the temperature t S of the temperature control switch 36 also rises.
  • the temperature control switch 36 turns off the circuit between the power supply device 31 and the heat generating component 32, the heating element 32 stops working, the temperature T of the heating element 32 naturally drops, and the temperature of the temperature control switch 36 S also drops until t S < T M , and the temperature control switch 36 again communicates the circuit between the power supply device 31 and the heat generating component 32, so that the heat generating component 32 operates normally again.
  • the temperature control switch 36 is disposed within the electronic cigarette, preferably adjacent to the heating element 32. Considering that the temperature t S of the temperature control switch 36 is slightly lower than the temperature T of the heat generating component 32, preferably, the operating temperature T M of the temperature control switch 36 should be slightly lower than the operating temperature of the electronic cigarette temperature control system 300. Upper limit T H .
  • the temperature control 36 switch is one, two or more combinations of a mechanical temperature control switch, an electronic temperature control switch and a temperature relay, wherein the mechanical temperature control switch comprises a steam pressure type temperature The control switch, the liquid expansion type temperature control switch, the gas adsorption type temperature control switch and the metal expansion type temperature control switch, the metal expansion type temperature control switch comprises a bimetal switch and a memory alloy switch, and the electronic temperature control switch comprises A resistive temperature control switch and a thermocouple type temperature control switch, the temperature relay including a thermal reed relay.
  • a display component may be further added for displaying information about the operating status of the electronic cigarette such as the battery power, the operating voltage, and the output power.
  • the present embodiment is different from the third embodiment in that: in this embodiment, the controller 44 is further included, and the temperature control switch 36 is electrically connected to the controller 44 , and the temperature control switch 36 is not directly
  • the on/off of the circuit between the power supply device 31 and the heat generating component 32 is controlled, and the controller 44 controls the output voltage/power of the power generating device 31 to the heat generating component 32 after determining based on the on/off of the temperature control switch 36.
  • the temperature t S of the temperature control switch 36 As the temperature T of the heating element 32 increases, the temperature t S of the temperature control switch 36 also rises. When t S ⁇ T M , the temperature control switch 36 generates the action A; when t S > T M , the temperature control switch 36 operates the action B.
  • the controller 44 detects the action of the temperature control switch 36 and controls the output voltage/power of the power supply device 41 to the heat generating component 32 depending on the action.
  • the action A may be that the temperature control switch 36 is closed, or the temperature control switch 36 may be turned off; the action B is opposite to the action A.
  • the electronic cigarette temperature control system 400 has the following beneficial effects:
  • thermocontrol switches can be used: t S ⁇ T M , the temperature control switch is closed, t S >T M , the temperature control switch is off; when t S ⁇ T M , the temperature control switch is off On, when t S >T M , the temperature control switch is closed;
  • the controller 44 can adjust the output voltage/power of the power supply device 31 to make the temperature T float less, which is beneficial to maintain the mouthfeel; thus, the heating element 32 can be prevented from immediately stopping to operate at a temperature T when the temperature is too high. The drop is too fast, which in turn affects the user's use.
  • the electronic cigarette temperature control system 400 of the present invention includes the following steps in operation:
  • step S401 the controller 44 determines the relationship between the temperature t S of the temperature control switch 36 and its operating temperature T M according to the action of the temperature control switch 36. If t S > T M , the process proceeds to step S402; if t S < T M , the process proceeds to step S404.
  • step S402 the controller 44 controls the power supply device 31 to reduce the output voltage/power to the heat generating component 32, and then proceeds to step S403.
  • step S403 the heating element 32 operates for a period of time at the output voltage/power, and then returns to step S401 and repeats the subsequent process.
  • the working period may be 1 second.
  • step S404 the controller 44 determines whether the output voltage/power of the heating element 31 by the power supply device 31 has reached the maximum output voltage/power. If the result of the determination is YES, the process proceeds to step S405; if the result of the determination is NO, the process proceeds to step S406.
  • step S405 the controller 44 controls the power supply device 31 to maintain the output voltage/power to the heat generating component 32, and then proceeds to step S403.
  • step S406 the controller 44 controls the power supply device 31 to increase the output voltage/power to the heat generating component 32, and then proceeds to step S403.
  • a display screen component may be further added for displaying information about the working state of the electronic cigarette such as the battery power, the operating voltage, and the output power.
  • the present invention provides an electronic cigarette temperature control system 500 including a power supply device 51, a heating element 52, and a controller 54.
  • the power supply device 51 is electrically connected to the heating element 52 and the controller 54 respectively.
  • the heating element 52 is electrically connected to the controller 54. After the heating element 52 is electrically driven by the power supply device 51, the smoke liquid, the smoke paste or the tobacco is heated to generate smoke, so that the user can obtain a smoking experience.
  • the heat generating component 52 serves both as a heat generating component and as a temperature sensing component.
  • the heating element 52 is made of a material having a temperature coefficient of resistance characteristic and may be made of one, two or more of platinum, copper, nickel, titanium, iron, ceramic-based PTC material, and polymer-based PTC material.
  • the resistance value R L increases as the temperature T of the heat generating element 52 rises.
  • the controller 54 stores in advance the correspondence between the upper limit of the operating temperature T H and the lower limit of the operating temperature T L and the resistance value R L of the heating element 52 and its temperature T.
  • the controller 54 can obtain the temperature T of the heating element 52 according to the resistance value R L of the heating element 52, and then compare the temperature T of the heating element 52 with the upper operating temperature T H and the lower operating temperature T L , and compare according to As a result, the output voltage/power of the power supply device 51 to the heat generating element 52 is controlled.
  • FIG. 10 a specific circuit diagram of the fifth embodiment is shown.
  • the power supply device 51 includes a battery 511 and a DC/DC power supply 512 and a voltage stabilization circuit 513 that are electrically connected to the battery 511, respectively.
  • the battery 511 can be charged to reserve sufficient electrical energy before use, and is discharged to the DC/DC power source 512 and the voltage stabilizing circuit 513, respectively, during use.
  • the voltage stabilizing circuit 513 is electrically connected to the controller 54 to provide a stable voltage to the controller 54.
  • the battery 511 is a lithium ion battery. It can be understood that the DC/DC power supply 512 and the voltage stabilization circuit 513 may be omitted according to actual conditions in other embodiments, or other circuits may be used instead. DC/DC power supply 512 and voltage stabilization circuit 513.
  • the electronic cigarette temperature control system 500 further includes a first constant resistor R 1 disposed between the power supply device 51 and the heat generating component 52.
  • the first fixed value resistor R 1 is used to assist in calculating the resistance value R L of the heat generating component 52.
  • the first fixed value resistor R 1 is disposed between the DC/DC power source 512 and the heat generating component 52.
  • the DC/DC power supply 512 provides a certain voltage V a to the first fixed value resistor R 1 and the heat generating component 52 under the control of the controller 54.
  • the voltage across the heating element 52 is V b . Therefore, when the current passing through the heat generating element 52 is (V a - V b ) / R 1 , the resistance value R L of the heat generating element 52 is R 1 * V b / (V a - V b ).
  • the resistance value of the first constant value resistor R 1 is small, so that the voltage V a - V b across the first constant value resistor R 1 is small and difficult to measure. If the resistance value of the first constant value resistor R 1 is increased, the voltage V b across the heat generating element 52 is decreased, so that the heat generation power of the heat generating element 52 is reduced.
  • the electronic cigarette temperature control system 500 further includes a second fixed value resistor R 2 , an amplifier 57 , a third fixed value resistor R 3 and a fourth Constant resistance R 4 .
  • the first constant resistor R 1 is connected in parallel with the second constant resistor R 2 , the amplifier 57 and the third constant resistor R 3 which are sequentially connected in series.
  • the amplifier 57 is an LT6105 chip. It can be understood that, depending on the amplifier 57, R 2 , R 3 , and R 4 may be connected differently, or at least one of R 2 , R 3 , and R 4 may be omitted, and other supporting electrons may be added. element.
  • the controller 54 includes a detecting unit 541, an arithmetic unit 542, and a control unit 543 that are electrically connected in sequence.
  • the detecting unit 541 is electrically connected to the fourth fixed value resistor R 4 , and can detect the voltage V c across the fourth fixed value resistor R 4 and feed back V c to the computing unit 542 .
  • the control unit 543 compares the temperature T of the heating element 52 with the pre-stored upper operating temperature upper limit T H and the operating temperature lower limit T L , and controls the output voltage/power of the DC/DC power source 512 to the heating element 52 according to the comparison result. .
  • the electronic cigarette temperature control system 500 of the present invention includes the following steps in operation:
  • step S501 the controller 54 calculates the resistance value R L of the thermal element 52, and then proceeds to step S502.
  • step S502 after the user clicks on the cigarette, the controller 54 calculates the resistance value R L of the thermal element 52 again, and then proceeds to step S503.
  • step S503 the controller 54 determines whether the heating element 52 has a resistance temperature coefficient characteristic based on the calculation results of step S501 and step S502. If there is basically no difference between the two calculation results or the difference between the two is within the allowable range of the fixed value resistance, the heating element does not have the characteristic of the resistance temperature coefficient; if the difference between the two calculation results is large, the heating element has the characteristic of the resistance temperature coefficient . If the result of the determination is YES, the process proceeds to step S504; if the result of the determination is NO, the process proceeds to step S510.
  • step S504 the controller 54 determines whether the user selects the temperature control mode. If the result of the determination is YES, the process proceeds to step S505; if the result of the determination is NO, the process proceeds to step S510.
  • step S505 the controller 54 calculates the resistance value R L of the heating element 52, and then proceeds to step S506.
  • step S506 the controller 54 calculates the temperature T of the heat generating element 52 based on the resistance value R L of the heat generating element 52, and then proceeds to step S507.
  • step S507 the controller 54 compares the temperature T of the heating element 52 with the upper operating temperature T H and the lower operating temperature T L . If T>T H , the process proceeds to step S508; if T ⁇ T L , the process proceeds to step S511.
  • step S508 the controller 54 controls the power supply device 51 to reduce the output voltage/power to the heating element 52, and then proceeds to step S509.
  • step S509 the heating element 52 operates for a period of time at the output voltage/power, and then returns to step S505 and repeats the subsequent process.
  • the working period may be 1 second.
  • step S510 the controller 54 automatically controls the power supply device 51 to select a suitable output voltage/power for the constant voltage/power output of the heating element 52 or the user.
  • step S511 the controller 54 determines whether the output voltage/power has reached the maximum output voltage/power. If the result of the determination is YES, the process proceeds to step S512; if the result of the determination is NO, the process proceeds to step S513.
  • step S512 the controller 54 controls the power supply device 51 to maintain the output voltage/power to the heating element 52, and then proceeds to step S509.
  • step S513 the controller 54 controls the power supply device 51 to increase the output voltage/power to the heat generating element 52, and then proceeds to step S509.
  • a display screen component may be further added for displaying information about the operating temperature of the electronic cigarette such as the temperature T of the heating element, the battery power, the operating voltage, and the output power.
  • the present invention provides an electronic cigarette temperature control system 600.
  • This embodiment differs from the fifth embodiment in that, in this embodiment, an input device 65 electrically connected to the controller 54 is added.
  • the user can input a desired target temperature T D (T L ⁇ T D ⁇ T H ) through the input device 65.
  • T D target temperature
  • the heating element 52 is maintained to operate at the temperature T D ⁇ t'.
  • ⁇ t' represents a temperature deviation
  • the response of the power supply device 51, the heat generating element 52, the temperature sensing element 53, and the controller 54 has a certain hysteresis.
  • the electronic cigarette temperature control system 600 of the present invention includes the following steps in operation:
  • step S601 the controller 54 calculates the resistance value R L of the thermal element 52, and then proceeds to step S602.
  • step S602 after the user clicks on the cigarette, the controller 54 calculates the resistance value R L of the thermal element 52 again, and then proceeds to step S603.
  • step S603 the controller 54 determines whether the heating element 52 has a resistance temperature coefficient characteristic based on the calculation results of step S601 and step S602. If there is basically no difference between the two calculation results or the difference between the two is within the allowable range of the fixed value resistance, the heating element does not have the characteristic of the resistance temperature coefficient; if the difference between the two calculation results is large, the heating element has the characteristic of the resistance temperature coefficient . If the result of the determination is YES, the process proceeds to step S604; if the result of the determination is NO, the process proceeds to step S610.
  • step S604 the user inputs the desired target temperature T D (T L ⁇ T D ⁇ T H ) through the input device 65, and then proceeds to step S605.
  • step S605 the controller 54 calculates the resistance value R L of the heating element 52, and then proceeds to step S606.
  • step S606 the controller 54 calculates the temperature T of the heat generating element 52 based on the resistance value R L of the heat generating element 52, and then proceeds to step S607.
  • step S607 the controller 54 compares the temperature T of the heating element 52 with T D . If T>T D , the process goes to step S608; if T ⁇ T D , then the process goes to step S611.
  • step S608 the controller 54 controls the power supply device 51 to reduce the output voltage/power to the heating element 52, and then proceeds to step S609.
  • step S609 the heating element 52 operates for a period of time at the output voltage/power, and then returns to step S605 and repeats the subsequent process.
  • the working period may be 1 second.
  • step S610 the controller 54 automatically controls the power supply device 51 to select a suitable output voltage/power for the constant voltage/power output of the heating element 52 or the user.
  • step S611 the controller 54 determines whether the output voltage/power has reached the maximum output voltage/power. If the result of the determination is YES, the process proceeds to step S612; if the result of the determination is NO, the process proceeds to step S613.
  • step S612 the controller 54 controls the power supply device 51 to maintain the output voltage/power to the heat generating element 52, and then proceeds to step S609.
  • step S613 the controller 54 controls the power supply device 51 to increase the output voltage/power to the heat generating element 52, and then proceeds to step S609.
  • the working steps of the electronic cigarette temperature control system 600 are the same as those in the fifth embodiment, and details are not described herein again.
  • a display screen component may be further added for displaying the target temperature T D set by the user, the temperature T of the heating element, the battery power, the operating voltage, the output power, and the like. Information about the working status of e-cigarettes.
  • the present invention provides an electronic cigarette temperature control system 700.
  • This embodiment differs from the first embodiment in that, in the present embodiment, a temperature control switch 76 is added between the power supply device 11 and the heat generating component 12.
  • the temperature control switch 76 is used to connect/disconnect the circuit between the power supply device and the heat generating component under the action of temperature.
  • the temperature control switch 76 is disposed within the electronic cigarette, preferably adjacent to the heating element 12. Considering that the temperature t S of the temperature control switch 76 is slightly lower than the temperature T of the heat generating component 12, preferably, the operating temperature T M of the temperature control switch 76 should be slightly lower than the operating temperature of the electronic cigarette temperature control system 700. Upper limit T H .
  • the temperature control 76 switch is one of a mechanical temperature control switch, an electronic temperature control switch, and a temperature relay, and any combination of two or more, wherein the mechanical temperature control switch includes a steam pressure type temperature
  • the control switch, the liquid expansion type temperature control switch, the gas adsorption type temperature control switch and the metal expansion type temperature control switch, the metal expansion type temperature control switch comprises a bimetal switch and a memory alloy switch, and the electronic temperature control switch comprises A resistive temperature control switch and a thermocouple type temperature control switch, the temperature relay including a thermal reed relay.
  • the working steps of the electronic cigarette temperature control system 700 are the same as those of the first embodiment, and will not be described herein; when the temperature t S >T M of the temperature control switch 76, The temperature control switch 76 is turned off, the power supply device 11 stops supplying power to the heating element 12, the temperature T of the heating element 12 naturally drops, and the temperature t S of the temperature control switch 76 also drops until t S ⁇ T M , and the temperature control switch 76 is again connected.
  • the circuit between the power supply unit 11 and the heat generating component 12 causes the heat generating component 12 to operate normally again in accordance with the steps described in the first embodiment.
  • the effect of double temperature control protection is achieved, especially when the temperature sensing element 13 and/or the controller 14 fail, the temperature of the heating element 12 can still be controlled to some extent.
  • the second embodiment can perform the same improvement with reference to the seventh embodiment, and a temperature control switch is added between the power supply device 21 and the heat generating component 22, thereby achieving the effect of double temperature control protection.
  • the fifth embodiment and the sixth embodiment can be correspondingly modified with reference to the seventh embodiment: a temperature control switch is added between the power supply device and the heat generating component, and when the heat generating component has a temperature coefficient of resistance characteristic, The effect of the double temperature control protection can be achieved; when the heating element does not have the temperature coefficient of resistance, the working steps of the electronic cigarette temperature control system are the same as those in the first embodiment, and are not described herein again.
  • the present invention provides an electronic cigarette temperature control system 800.
  • a temperature sensing element 83 electrically connected to the controller 54 is added.
  • temperature control can be realized by referring to the manner of the fifth embodiment; when the heating element 52 does not have the temperature coefficient of resistance characteristic, temperature control can be realized by referring to the manner of the first embodiment.
  • a temperature control switch can be electrically connected to the controller.
  • temperature control can be implemented by referring to the fourth embodiment.
  • the electronic cigarette temperature control system 800 has the following beneficial effects: when the user uses the atomizing device of the heating element having the temperature coefficient of resistance characteristic, the temperature control can be implemented in the manner of the fifth embodiment; when the user uses no resistance In the case of the atomization device of the heating element characterized by the temperature coefficient, the temperature control can be carried out in accordance with the first embodiment, alternatively, in the manner of the fourth embodiment. In this way, the versatility of the electronic cigarette temperature control system and its electronic cigarette is increased.
  • a temperature control switch can be added between the power supply device 51 and the heating element 52 to serve as a dual temperature control protection, especially when the temperature sensing element 83 and/or the controller 54 fail.
  • the temperature of the heating element 52 can be controlled to a certain extent.
  • the present invention provides an electronic cigarette temperature control system 900.
  • a temperature sensing element 93 electrically connected to the controller 64 is added.
  • the heating element 62 has a temperature coefficient of resistance characteristic
  • the heating element 62 can be operated at the target temperature T D ⁇ t' in the manner of the sixth embodiment; when the heating element 62 does not have the temperature coefficient of resistance characteristic, the second can be referred to
  • the manner of the embodiment enables the heating element 62 to operate at the target temperature T D ⁇ t'.
  • a temperature-controlled switch can also be added between the power supply device 61 and the heating element 62 for dual temperature control protection.
  • the present invention provides an electronic cigarette 10 including a casing 101, a mouthpiece 102, a liquid storage chamber 103, a liquid guiding member 104, and an electronic cigarette temperature control system 100.
  • the temperature control system 100 communicates with the liquid storage chamber 103 through the liquid guiding member 104 for heating the liquid smoke to atomize and control the temperature of the heating element 12 within a reasonable range.
  • the electronic cigarette temperature control system 100 can be any of the electronic cigarette temperature control systems (200, 300, 400, 500, 600, 700, 800, 900) of the second embodiment to the ninth embodiment, Or an electronic cigarette improved on the basis of any of the electronic cigarette temperature control systems (100, 200, 300, 400, 500, 600, 700, 800, 900) in the first embodiment to the ninth embodiment The temperature control system is replaced.
  • any of the electronic cigarette temperature control systems of the first embodiment to the ninth embodiment and the electronic cigarette temperature control system of any of the first embodiment to the ninth embodiment are improved.
  • the electronic cigarette temperature control system can be applied to any kind of electronic cigarette, without being limited by the liquid guiding method of the electronic cigarette, the atomizing method, the type of the atomizing substrate (such as tobacco, smoke oil or smoke), heating method, etc. .

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  • General Physics & Mathematics (AREA)
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  • Control Of Resistance Heating (AREA)
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Abstract

一种电子烟温控系统（100），其包括供电装置（11）、发热元件（12）、感温元件（13）以及控制器（14），所述供电装置（11）分别与发热元件（12）、控制器（14）电性连接，所述感温元件（13）与控制器（14）电性连接，用于感应发热元件（12）的温度T的变化，并反馈给控制器（14），所述控制器（14）用于根据感温元件（13）的相关物理量x计算得出感温元件（13）的温度t，再由感温元件（13）的温度t计算得出发热元件（12）的温度T。一种电子烟，其包括上述温控系统（100）。

Description

温控系统及其控制方法、含有温控系统的电子烟 技术领域
本发明涉及电子烟技术领域，具体涉及一种温控系统及其控制方法、含有该温控系统的电子烟。
背景技术
电子烟又名虚拟香烟，它有着与香烟近似的味道，可在不影响健康的前提下模拟吸烟的感觉，一般作为戒烟产品或替代香烟供使用者使用。然而，随着电子烟电池组件部分的输出电压或功率越来越大并且雾化器组件部分发热元件的电阻值越来越小，使得发热元件产生的温度越来越高。发热元件的温度过高可能会导致烟液、烟膏或烟丝产生与释放出对人体健康有害的物质，进而影响使用者对电子烟的认识。
发明内容
针对上述技术问题，本发明的目的在于提供一种可将发热元件的温度控制在合理范围内的温控系统及其控制方法、含有该温控系统的电子烟。
实现本发明目的的技术方案如下：
一种电子烟温控系统，该电子烟温控系统包括供电装置、发热元件、感温元件以及控制器。所述供电装置分别与发热元件、控制器电性连接。所述感温元件与控制器电性连接，用于感应发热元件的温度T的变化，并反馈给控制器。所述控制器用于根据感温元件的相关物理量x计算得出感温元件的温度t，再由感温元件的温度t计算得出发热元件的温度T。
进一步地，所述感温元件是PTC热敏电阻、NTC热敏电阻、双金属片、热电偶、石英晶体温度传感器、光纤温度传感器、红外温度传感器以及P-N结温度传感器中的一种、两种或两种以上的任意组合。
优选地，所述感温元件靠近发热元件设置。
进一步地，所述控制器还用于将发热元件的温度T与工作温度上限TH和工作温度下限TL进行比较，最后根据比较结果控制供电装置向发热元件的输出电压/功率。
进一步地，所述相关物理量x是温度t、电阻、电压、电流、谐振频率、光功率中的一种、两种或两种以上的组合。
进一步地，所述感温元件是PTC热敏电阻，所述相关物理量x是PTC热敏电阻的电阻值RT。
进一步地，所述电子烟温控系统还包括一与感温元件串联的定值电阻R5，R5两端的电压为Ve-Vf，通过R5的电流为(Ve-Vf)/R5，感温元件两端的电压为Vf，感温元件的电阻RT＝R5*Vf/(Ve-Vf)。
进一步地，所述控制器包括依次电性连接的检测单元、运算单元以及控制单元；
检测单元，与感温元件电性连接，用于检测感温元件两端的电压Vf，并将Vf反馈给运算单元；
运算单元，预先存储有运算公式：RT＝R5*Vf/(Ve-Vf)、感温元件的电阻值RT与其温度t的对应关系数据以及运算公式：T＝t+Δt，用于根据预先存储的运算公式及对应关系数据计算出发热元件的温度T，并将T反馈给控制单元；
控制单元，用于将发热元件的温度T与预先存储的工作温度上限TH和工作温度下限TL 进行比较，并根据比较结果，控制供电装置向发热元件的输出电压/功率。
进一步地，所述电子烟温控系统还包括一与所述控制器电性连接的输入装置，所述输入装置用于供使用者输入所需的目标温度TD，TL≤TD≤TH。
进一步地，所述电子烟温控系统还包括一温控开关，所述温控开关串联在供电装置和发热元件之间，当所述感温元件和/或控制器失灵时，所述温控开关也可起到控温的效果。
一种电子烟温控系统，该电子烟温控系统包括依次电性连接的供电装置、温控开关以及发热元件，所述温控开关的动作温度TM低于电子烟温控系统的工作温度上限TH。
进一步地，所述温控开关为机械式温控开关、电子式温控开关、温度继电器中的一种、两种或两种以上的任意组合。
进一步地，所述机械式温控开关是蒸汽压力式温控开关、液体膨胀式温控开关、气体吸附式温控开关或金属膨胀式温控开关，所述电子式温控开关是电阻式温控开关或热电偶式温控开关，所述温度继电器是热敏干簧继电器。
进一步地，所述温控开关的温度tS随着发热元件的温度T地升高而升高，当tS＜TM时，温控开关连通供电装置和发热元件之间的电路，发热元件正常工作，发热元件的温度T升高，当tS＞TM时，温控开关断开供电装置和发热元件之间的电路，发热元件停止工作，发热元件的温度T自然下降。
优选地，所述温控开关靠近发热元件设置。
一种电子烟温控系统，该电子烟温控系统包括供电装置、发热元件、控制器以及温控开关，所述控制器分别与供电装置、温控开关电性连接，所述发热元件与供电装置电性连接，所述温控开关靠近发热元件设置，所述温控开关的动作温度TM低于电子烟温控系统的工作温度上限TH。
进一步地，所述温控开关为机械式温控开关、电子式温控开关、温度继电器中的一种、两种或两种以上的任意组合。
进一步地，所述机械式温控开关为蒸汽压力式温控开关、液体膨胀式温控开关、气体吸附式温控开关或金属膨胀式温控开关，所述电子式温控开关为电阻式温控开关或热电偶式温控开关，所述温度继电器是热敏干簧继电器。
进一步地，所述温控开关的温度tS随着发热元件的温度T地升高而升高，当tS＜TM时，温控开关发生动作A；当tS＞TM时，温控开关发生动作B，控制器检测温控开关的动作，并根据动作的不同控制供电装置对发热元件的输出电压/功率。
进一步地，所述动作A可以是温控开关闭合，也可以是温控开关断开，所述动作B与所述动作A相反。
优选地，所述温控开关靠近发热元件设置。
一种电子烟温控系统，该电子烟温控系统包括供电装置、发热元件以及控制器，所述供电装置分别与发热元件、控制器电性连接，所述发热元件与控制器电性连接，所述发热元件具有电阻温度系数特征，所述发热元件本身直接作为感温元件，将其自身温度T的变化反馈给控制器。
进一步地，所述发热元件可以由铂、铜、镍、钛、铁、陶瓷基PTC材料、高分子基PTC材料中的一种、两种或两种以上制成，其电阻值RL随着发热元件的温度T的升高而增大。
进一步地，所述控制器用于根据发热元件的电阻值RL计算得出发热元件的温度T，进而 将发热元件的温度T与工作温度上限TH和工作温度下限TL进行比较，并根据比较结果控制供电装置向发热元件的输出电压/功率。
进一步地，所述电子烟温控系统还包括一设置在供电装置与发热元件之间的一第一定值电阻R1，第一定值电阻R1两端的电压为Va-Vb，发热元件两端的电压为Vb，通过发热元件的电流为(Va-Vb)/R1，发热元件的电阻RL＝R1*Vb/(Va-Vb)。
进一步地，所述电子烟温控系统还包括第二定值电阻R2、放大器、第三定值电阻R3及第四定值电阻R4，所述第一定值电阻R1与依次串联的第二定值电阻R2、放大器以及第三定值电阻R3整体并联，所述第四定值电阻R4与放大器并联，根据放大器的应用特性，可以得出Va-Vb＝Vc*R2/R4。
进一步地，所述控制器包括依次电性连接的检测单元、运算单元以及控制单元；
检测单元，与第四定值电阻R4电性连接，用于检测第四定值电阻R4两端的电压Vc，并将Vc反馈给运算单元；
运算单元，预先存储有运算公式：Va-Vb＝Vc*R2/R4、运算公式：RL＝R1*Vb/(Va-Vb)以及发热元件的电阻值RL与其温度T的对应关系数据，用于根据预先存储的运算公式及对应关系数据计算出发热元件的温度T，并将T反馈给控制单元；
控制单元，用于将发热元件的温度T与预先存储的工作温度上限TH和工作温度下限TL进行比较，并根据比较结果，控制供电装置向发热元件的输出电压/功率。
进一步地，所述电子烟温控系统还包括一与所述控制器电性连接的输入装置，所述输入装置用于供使用者输入所需的目标温度TD，TL≤TD≤TH。
进一步地，所述电子烟温控系统还包括一温控开关，所述温控开关串联在供电装置和发热元件之间，当所述发热元件和/或控制器失灵时，所述温控开关也可起到控温的效果。
进一步地，所述电子烟温控系统还包括一与控制器电性连接的感温元件或温控开关。
优选地，所述感温元件或温控开关靠近发热元件设置。
一种电子烟，包含上述任意一种电子烟温控系统。
一种温控方法，应用于具有供电装置、发热元件、控制器以及感温元件的电子烟温控系统或电子烟，所述的温控方法包括以下步骤：
所述控制器检测感温元件的相关物理量x；
所述控制器根据感温元件的相关物理量x计算出发热元件的温度T；
所述控制器将发热元件的温度T与预先存储的工作温度上限TH和工作温度下限TL进行比较；
所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率；以及
所述发热元件在进行一定调整的输出电压/功率下工作一段时间。
进一步地，所述的由所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率的步骤还包括：当所述发热元件的温度大于工作温度上限TH时，则所述控制器控制供电装置减小对发热元件的输出电压/功率。
进一步地，所述的由所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率的步骤还包括：当所述发热元件的温度小于工作温度下限TL，且供电装置对发热元件的输出电压/功率已达到最大输出电压/功率时，则所述控制器控制供电装置维持对发热元件的输出电压/功率。
进一步地，所述的由所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率的步骤还包括：当所述发热元件的温度小于工作温度下限TL，且供电装置对发热元件的输出电压/功率未达到最大输出电压/功率时，则所述控制器控制供电装置增大对发热元件的输出电压/功率。
进一步地，电子烟温控系统或电子烟还可包括一输入装置，所述温控方法还包括在所述控制器检测感温元件的相关物理量x的步骤之前，通过所述输入装置输入目标温度TD，TL≤TD≤TH；所述目标温度TD替代预先存储的工作温度上限TH和工作温度下限TL作为比较项，所述控制器将发热元件的温度T与目标温度TD进行比较。
一种温控方法，应用于具有供电装置、发热元件以及温控开关的电子烟温控系统或电子烟，所述的温控方法包括以下步骤：所述温控开关判断温控开关的温度tS与动作温度TM的关系，当所述温控开关的温度tS小于其动作温度TM时，温控开关连通供电装置和发热元件之间的电路，发热元件正常工作，发热元件的温度T升高；当所述温控开关的温度tS大于其动作温度TM时，温控开关断开供电装置和发热元件之间的电路，发热元件停止工作，发热元件的温度T自然下降。
一种温控方法，应用于具有供电装置、发热元件、控制器以及温控开关的电子烟温控系统或电子烟，所述的温控方法包括以下步骤：控制器根据温控开关的动作判断温控开关的温度tS与其动作温度TM的关系，当温控开关的温度tS小于TM时，温控开关发生动作A，当温控开关的温度tS大于TM时，温控开关发生动作B，所述控制器检测温控开关的动作，并根据动作的不同控制供电装置对发热元件的输出电压/功率，所述发热元件在进行一定调整的输出电压/功率下工作一段时间；其中，所述动作A为闭合或断开，所述动作A与所述动作B相反。
进一步地，所述的由所述控制器根据温控开关的动作调整供电装置对发热元件的输出电压/功率的步骤还包括：当温控开关发生动作B时，控制器控制供电装置减小对发热元件的输出电压/功率。
进一步地，所述的由所述控制器根据温控开关的动作调整供电装置对发热元件的输出电压/功率的步骤还包括：当温控开关发生动作A，且供电装置对发热元件的输出电压/功率已达到最大输出电压/功率时，则所述控制器控制供电装置维持对发热元件的输出电压/功率。
进一步地，所述的由所述控制器根据温控开关的动作调整供电装置对发热元件的输出电压/功率的步骤还包括：当温控开关发生动作A，且供电装置对发热元件的输出电压/功率小于最大输出电压/功率时，则所述控制器控制供电装置增大对发热元件的输出电压/功率。
一种温控方法，应用于具有供电装置、发热元件以及控制器的电子烟温控系统或电子烟，所述的温控方法包括以下步骤：
所述控制器计算发热元件的电阻值RL；
所述控制器在点烟后再次计算发热元件的电阻值RL；
所述控制器判断发热元件是否具有电阻温度系数特征；
所述控制器判断使用者是否选择温控模式；
所述控制器计算发热元件的电阻值RL；
所述控制器根据发热元件的电阻值RL计算出发热元件的温度T；
所述控制器将发热元件的温度T与预先存储的工作温度上限TH和工作温度下限TL进行 比较；
所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率；以及
所述发热元件在进行一定调整的输出电压/功率下工作一段时间。
进一步地，所述的由所述控制器判断发热元件是否具有电阻温度系数特征的步骤还包括：当发热元件不具有电阻温度系数特征时，所述控制器自动控制供电装置对发热元件恒电压/功率输出或根据使用者手动选择的电压/功率输出；当发热元件具有电阻温度系数特征时，使用者可选择是否进入温控模式。
进一步地，所述的使用者是否选择温控模式的步骤还包括：当使用者不选择温控模式，所述控制器自动控制供电装置对发热元件恒电压/功率输出或根据使用者手动选择的电压/功率输出；当使用者选择温控模式，所述控制器计算发热元件的电阻值RL。
进一步地，所述的由所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率的步骤还包括：当所述发热元件的温度大于工作温度上限TH时，则所述控制器控制供电装置减小对发热元件的输出电压/功率。
进一步地，所述的由所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率的步骤还包括：当所述发热元件的温度小于工作温度下限TL，且供电装置对发热元件的输出电压/功率已达到最大输出电压/功率时，则所述控制器控制供电装置维持对发热元件的输出电压/功率。
进一步地，所述的由所述控制器根据比较结果调整供电装置对发热元件的输出电压/功率的步骤还包括：当所述发热元件的温度小于工作温度下限TL，且供电装置对发热元件的输出电压/功率小于最大输出电压/功率时，则所述控制器控制供电装置增大对发热元件的输出电压/功率。
本发明具有如下有益效果：
(1)所述温控系统及其控制方法、含有该温控系统的电子烟可将发热元件的温度保持在合理的范围内，避免产生与释放对人体健康有害的物质，这样，还有利于维持口感、节约能耗、避免电子烟壳体过热以及防止电子烟内部元件热老化；
(2)通过增加一输入装置，使用者可按自身需求设置发热元件的工作温度；
(3)通过在供电装置和发热元件之间增加一温控开关，可以起到双重控温的效果，尤其是当感温元件和/或控制器失灵时，仍然对发热元件的温度有一定的控制；
(4)通过增加感温元件/温控开关和控制器，使用者使用/不使用含有电阻温度系数特征的发热元件的雾化装置均可实现控温，增加了电子烟温控系统及其电子烟的通用性。
附图说明
图1为本发明第一实施例的电子烟温控系统的电路图。
图2为本发明第一实施例的电子烟温控系统的的一种具体电路图。
图3为本发明第一实施例的电子烟温控系统的工作流程示意图。
图4为本发明第二实施例的电子烟温控系统的电路图。
图5为本发明第二实施例的电子烟温控系统的工作流程示意图。
图6为本发明第三实施例的电子烟温控系统的电路图。
图7为本发明第四实施例的电子烟温控系统的电路图。
图8为本发明第四实施例的电子烟温控系统的工作流程示意图。
图9为本发明第五实施例的电子烟温控系统的电路图。
图10为本发明第五实施例的电子烟温控系统的一种具体电路图。
图11为本发明第六实施例的电子烟温控系统的工作流程示意图。
图12为本发明第六实施例的电子烟温控系统的电路原理图。
图13为本发明第六实施例的电子烟温控系统的工作流程示意图。
图14为本发明第七实施例的电子烟温控系统的电路原理图。
图15为本发明第八实施例的电子烟温控系统的电路原理图。
图16为本发明第九实施例的电子烟温控系统的电路原理图。
图17为本发明第十实施例的电子烟的示意图。
电子烟温控系统      100、200、300、400、500、600、700、800、900
供电装置：          11、31、51
电池：              111、511
DC/DC电源：         112、512
稳压电路：          113、513
发热元件：          12、32、52
温度感应电路：      13、83、93
控制器：            14、44、54
检测单元：          141、541
运算单元：          142、542
控制单元：          143、543
输入装置：          25、65
温控开关：          36、76
放大器：            57
电子烟              10
壳体                101
烟嘴                102
储液腔              103
导液元件            104
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现结合附图详细说明本发明的具体实施方式。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。
第一实施例：
请参照图1，本发明提供了一种电子烟温控系统100，其包括供电装置11、发热元件12、感温元件13以及控制器14。所述供电装置11分别与发热元件12、控制器14电性连接。所述感温元件13与控制器14电性连接。所述发热元件12由供电装置11电驱动后，加热烟液、烟膏或烟丝使其产生烟雾，使使用者获得吸烟体验。
所述感温元件13用于感应发热元件12的温度T的变化，所述感温元件13的温度t随着 发热元件12的温度T地升高而升高，进而引起所述感温元件13的相关物理量x发生变化，控制器11可检测相关物理x进而计算出发热元件12的温度T。
所述感温元件13设置在电子烟内，优选地，所述温感元件13靠近发热元件12设置。所述感温元件13可以是PTC热敏电阻、NTC热敏电阻、双金属片、热电偶、石英晶体温度传感器、光纤温度传感器、红外温度传感器以及P-N结温度传感器中的一种、两种或两种以上的组合。所述感温元件13的数量可以是一个、两个或两个以上。在空间位置允许的情况下，可将多个同种和/或不同种感温元件13设置在不同的位置，一方面，可分别通过各个感温元件13计算出发热元件的温度T，再求出平均值，该平均值可更为准确的反映发热元件的温度T；另一方面，当其中某一个感温元件失灵时，控制器14可及时做出判断，剔除不可靠值，使得电子烟温控系统100仍能正常工作并保证较高的温控精度。
根据所述感温元件13的不同，所述相关物理量x可以是温度t、电阻、电压、电流、谐振频率、光功率等中的一种、两种或两种以上的组合。
所述控制器14先根据感温元件13的相关物理量x计算得出感温元件13的温度t，再根据所述感温元件13的温度t计算得出发热元件12的温度T，然后将所述发热元件12的温度T与工作温度上限TH和工作温度下限TL进行比较，最后根据比较结果控制供电装置11向发热元件12的输出电压/功率。
请进一步参照图2所示，在该具体实施例中所述感温元件13为PTC热敏电阻RT。随着发热元件12的温度T地升高，感温元件13的温度t也升高，进而引起感温元件13的电阻值RT升高。即本实施例中，感温元件13的所述相关物理量x为电阻值RT。
进一步地，为了便于测量感温元件13的电阻值RT，可将感温元件13与一定值电阻R5串联。R5两端的电压为Ve-Vf，因此，通过R5的电流为(Ve-Vf)/R5。感温元件13两端的电压为Vf，故RT＝R5*Vf/(Ve-Vf)。
具体地，所述控制器14包括依次电性连接的检测单元141、运算单元142以及控制单元143。所述检测单元141与感温元件13电性连接，可检测感温元件13两端的电压Vf，并将Vf反馈给运算单元142。所述运算单元142预先存储有运算公式：RT＝R5*Vf/(Ve-Vf)、感温元件13的电阻值RT与其温度t的对应关系数据以及运算公式：T＝t+Δt(Δt：经实验所得的感温元件13的温度t与发热元件12的温度T之间的差值)。所述运算单元142先根据运算公式：RT＝R5*Vf/(Ve-Vf)计算出感温元件13的电阻值RT；接着，根据感温元件13的电阻值RT与其温度t的对应关系数据得到感温元件13的温度t；然后，根据公式T＝t+Δt计算出发热元件12的温度T；最后，将发热元件12的温度T反馈给控制单元143。所述控制单元143将发热元件12的温度T与预先存储的工作温度上限TH和工作温度下限TL进行比较，并根据比较结果，控制DC/DC电源112向发热元件12的输出电压/功率。
进一步地，所述供电装置11包括电池111以及分别与电池111电性连接的DC/DC电源112和稳压电路113。所述电池111可进行充电以储备足够的电能，并可分别向DC/DC电源112和稳压电路113放电。所述DC/DC电源112与发热元件12电性连接，用于将电池111的电压升高后提供给发热元件12。所述稳压电路113与控制器14电性连接，为控制器14提供稳定的电压Ve。本实施例中，所述电池111为锂离子电池。可以理解地，在其他实施例中可根据实际情况省略所述DC/DC电源112和稳压电路113，或者可采用其他电路来替代DC/DC电源112和/或稳压电路113。
请参照图3，本发明的电子烟温控系统100在工作中包括以下步骤：
步骤S101，控制器14检测感温元件13的相关物理量x，然后，进入步骤S102。
步骤S102，控制器14根据感温元件13的相关物理量x计算出发热元件12的温度T，然后，进入步骤S103。
步骤S103，控制器14将发热元件12的温度T与工作温度上限TH和工作温度下限TL进行比较。如果T＞TH，则进入步骤S104；如果T＜TL，则进入步骤S106。
步骤S104，控制器14控制供电装置11减小对发热元件12的输出电压/功率，然后，进入步骤S105。
步骤S105，发热元件12在该输出电压/功率下，工作一段时间，然后，回到步骤S102，并重复之后的过程。本实施例中，所述工作一段时间可以是1秒。
步骤S106，控制器14判断供电装置11对发热元件12的输出电压/功率是否已达到最大输出电压/功率。如果判断结果为YES，则进入步骤S107；如果判断结果为NO，则进入步骤S108。
步骤S107，控制器14控制供电装置11维持对发热元件12的输出电压/功率，然后，进入步骤S105。
步骤S108，控制器14控制供电装置11增大对发热元件12的输出电压/功率，然后，进入步骤S105。
在其他实施例中，对于所述电子烟温控系统100，可再增加一显示屏组件，用于显示发热元件的温度T、电池电量、工作电压、输出功率等电子烟工作状态的相关信息。
第二实施例：
请参照图4，本发明提供了一种电子烟温控系统200。本实施例与第一实施例相比，不同之处在于：在本实施例中，增加了一与控制器14电性连接的输入装置25。使用者可以通过输入装置25输入所需的目标温度TD(TL≤TD≤TH)。在控制器14的控制下，使得发热元件12维持在温度TD±Δt’下工作。其中，Δt’表示温度偏差，由于供电装置11、发热元件12、感温元件13以及控制器14的响应具有一定的滞后性而产生。
请参照图5，本发明的电子烟温控系统200在工作中包括以下步骤：
步骤S201，使用者通过输入装置25输入所需的目标温度TD(TL≤TD≤TH)，然后，进入步骤S202。
步骤S202，控制器14检测感温元件13的相关物理量x，然后，进入步骤S203。
步骤S203，控制器14计算出发热元件12的温度T，然后，进入步骤S204。
步骤S204，控制器14将发热元件12的温度T与TD进行比较。如果T＞TD，则进入步骤S205；如果T＜TD，则进入步骤S207。
步骤S205，控制器14控制供电装置11减小对发热元件12的输出电压/功率，然后，进入步骤S206。
步骤S206，发热元件12在该输出电压/功率下，工作一段时间，然后，回到步骤S202，并重复之后的过程。本实施例中，所述工作一段时间可以是1秒。
步骤S207，控制器14判断供电装置11对发热元件12的输出电压/功率是否已达到最大输出电压/功率。如果判断结果为YES，则进入步骤S208；如果判断结果为NO，则进入步骤S209。
步骤S208，控制器14控制供电装置11维持对发热元件12的输出电压/功率，然后，进入步骤S206。
步骤S209，控制器14控制供电装置11增大对发热元件12的输出电压/功率，然后，进入步骤S206。
在其他实施例中，如果使用者不输入TD，则所述电子烟温控系统200的工作步骤与第一实施例相同，此处不再赘述。
在其他实施例中，对于所述电子烟温控系统200，可再增加一显示屏组件，用于显示用户设置的目标温度TD、发热元件的温度T、电池电量、工作电压、输出功率等电子烟工作状态的相关信息。
第三实施例：
请参照图6，本发明提供了一种电子烟温控系统300，其包括依次电性连接的供电装置31、温控开关36以及发热元件32。所述发热元件32由供电装置31电驱动后，加热烟液、烟膏或烟丝使其产生烟雾，使使用者获得吸烟体验。
所述温控开关36用于在温度作用下连通/断开供电装置31和发热元件32之间的电路。随着发热元件32的温度T地升高，所述温控开关36的温度tS也升高。当tS＜TM时，温控开关36连通供电装置31和发热元件32之间的电路，发热元件32正常工作，发热元件32的温度T升高，温控开关36的温度tS也升高；当tS＞TM时，温控开关36断开供电装置31和发热元件32之间的电路，发热元件32停止工作，发热元件32的温度T自然下降，温控开关36的温度tS也下降，直至tS＜TM，温控开关36再次连通供电装置31和发热元件32之间的电路，使得发热元件32再次正常工作。
所述温控开关36设置在电子烟内，优选地，靠近发热元件32设置。考虑到所述温控开关36的温度tS略低于发热元件32的温度T，优选地，应使所述温控开关36的动作温度TM略低于电子烟温控系统300的工作温度上限TH。所述温控36开关是机械式温控开关、电子式温控开关以及温度继电器中的一种、两种或两种以上的任意组合，其中，所述机械式温控开关包括蒸汽压力式温控开关、液体膨胀式温控开关、气体吸附式温控开关以及金属膨胀式温控开关，所述金属膨胀式温控开关包括双金属片开关以及记忆合金开关，所述电子式温控开关包括电阻式温控开关以及热电偶式温控开关，所述温度继电器包括热敏干簧继电器。
在其他实施例中，对于所述电子烟温控系统300，可再增加一显示屏组件，用于显示电池电量、工作电压、输出功率等电子烟工作状态的相关信息。
第四实施例：
请参照图7，本实施例与第三实施例相比，不同之处在于：本实施例中，还包括控制器44，温控开关36与控制器44电性连接，温控开关36不直接控制供电装置31和发热元件32之间电路的通/断，而是控制器44根据温控开关36的通/断进行判断后控制供电装置31对发热元件32的输出电压/功率。
随着发热元件32的温度T的升高，所述温控开关36的温度tS也升高。当tS＜TM时，温控开关36发生动作A；当tS＞TM时，温控开关36发生动作B。控制器44检测温控开关36的动作，并根据动作的不同控制供电装置41对发热元件32的输出电压/功率。其中，动作A可以是温控开关36闭合，也可以是温控开关36断开；动作B与动作A相反。
所述电子烟温控系统400具有如下有益效果：
(1)可采用如下两种性质的温控开关：tS＜TM时，温控开关闭合，tS＞TM时，温控开关断开；tS＜TM时，温控开关断开，tS＞TM时，温控开关闭合；
(2)所述控制器44可调节供电装置31的输出电压/功率，使温度T浮动较小，有利于维持口感；如此，可避免发热元件32在温度过高时立即停止工作使其温度T下降过快，进而影响使用者的使用。
请参照图8，本发明的电子烟温控系统400在工作中包括以下步骤：
步骤S401，控制器44根据温控开关36的动作判断温控开关36的温度tS与其动作温度TM的关系。如果tS＞TM，则进入步骤S402；如果tS＜TM，则进入步骤S404。
步骤S402，控制器44控制供电装置31减小对发热元件32的输出电压/功率，然后，进入步骤S403。
步骤S403，发热元件32在该输出电压/功率下，工作一段时间，然后，回到步骤S401，并重复之后的过程。本实施例中，所述工作一段时间可以是1秒。
步骤S404，控制器44判断供电装置31对发热元件32的输出电压/功率是否已达到最大输出电压/功率。如果判断结果为YES，则进入步骤S405；如果判断结果为NO，则进入步骤S406。
步骤S405，控制器44控制供电装置31维持对发热元件32的输出电压/功率，然后，进入步骤S403。
步骤S406，控制器44控制供电装置31增大对发热元件32的输出电压/功率，然后，进入步骤S403。
在其他实施例中，对于所述电子烟温控系统400，可再增加一显示屏组件，用于显示电池电量、工作电压、输出功率等电子烟工作状态的相关信息。
第五实施例：
请参照图9，本发明提供了一种电子烟温控系统500，其包括供电装置51、发热元件52以及控制器54。所述供电装置51分别与发热元件52、控制器54电性连接。所述发热元件52与控制器54电性连接。所述发热元件52由供电装置51电驱动后，加热烟液、烟膏或烟丝使其产生烟雾，使使用者获得吸烟体验。
所述发热元件52既作为发热元件又作为感温元件。所述发热元件52由具有电阻温度系数特征的材料制成，可以由铂、铜、镍、钛、铁、陶瓷基PTC材料、高分子基PTC材料中的一种、两种或两种以上制成，其电阻值RL随着发热元件52的温度T地升高而增大。
所述控制器54内预先存储有工作温度上限TH与工作温度下限TL，以及发热元件52的电阻值RL与其温度T的对应关系数据。所述控制器54可根据发热元件52的电阻值RL得出发热元件52的温度T，进而将发热元件52的温度T与工作温度上限TH和工作温度下限TL进行比较，并根据比较结果控制供电装置51向发热元件52的输出电压/功率。
请参照图10，所示为第五实施例的一种具体电路图。
具体地，所述供电装置51包括电池511以及分别与电池511电性连接的DC/DC电源512和稳压电路513。所述电池511在使用前可进行充电以储备足够的电能，在使用时分别向DC/DC电源512和稳压电路513放电。所述稳压电路513与控制器54电性连接，为控制器54提供稳定的电压。本实施例中，所述电池511为锂离子电池。可以理解的，在其他实施例中可根据实际情况省略所述DC/DC电源512和稳压电路513，或者可采用其他电路来替代 DC/DC电源512和稳压电路513。
进一步地，所述电子烟温控系统500还包括设置在供电装置51与发热元件52之间的一第一定值电阻R1。所述第一定值电阻R1用于辅助计算发热元件52的电阻值RL。本实施例中，所述第一定值电阻R1设置在DC/DC电源512与发热元件52之间。所述DC/DC电源512在控制器54的控制下向第一定值电阻R1和发热元件52提供一定的电压Va。所述发热元件52两端的电压为Vb。因此，通过发热元件52的电流为(Va-Vb)/R1，则发热元件52的电阻值RL＝R1*Vb/(Va-Vb)。
进一步地，第一定值电阻R1的电阻值较小，使得第一定值电阻R1两端的电压Va-Vb较小而难以测量。如果增大第一定值电阻R1的电阻值，则会使得发热元件52两端的电压Vb减小，从而使得发热元件52的发热功率减小。为了便于测量第一定值电阻R1两端的电压Va-Vb，所述电子烟温控系统500还包括第二定值电阻R2、放大器57、第三定值电阻R3及第四定值电阻R4。所述第一定值电阻R1与依次串联的第二定值电阻R2、放大器57以及第三定值电阻R3整体并联。所述第四定值电阻R4与放大器57并联。根据放大器57的应用特性，可以得出Va-Vb＝Vc*R2/R4。本实施例中，所述放大器57为LT6105芯片。可以理解地，根据放大器57的不同，会使得R2、R3、R4的连接方式不同，或会使得R2、R3、R4中至少一个可以省略，还可能会需要添加其他配套电子元件。
具体地，所述控制器54包括依次电性连接的检测单元541、运算单元542以及控制单元543。所述检测单元541与第四定值电阻R4电性连接，可检测第四定值电阻R4两端的电压Vc，并将Vc反馈给运算单元542。所述运算单元542预先存储有运算公式：Va-Vb＝Vc*R2/R4、运算公式：RL＝R1*Vb/(Va-Vb)以及发热元件52的电阻值RL与其温度T的对应关系数据。所述运算单元542先根据放大器的应用特性，由公式Va-Vb＝Vc*R2/R4计算出第一定值电阻R1两端的电压Va-Vb；接着，由公式RL＝R1*Vb/(Va-Vb)计算出发热元件52的电阻值RL；然后，根据预先存储的发热元件52的电阻值RL与其温度T的对应关系数据得到发热元件52的温度T；最后，将发热元件52的温度T反馈给控制单元543。所述控制单元543将发热元件52的温度T与预先存储的工作温度上限TH和工作温度下限TL进行比较，并根据比较结果，控制DC/DC电源512向发热元件52的输出电压/功率。
请参照图11，本发明的电子烟温控系统500在工作中包括以下步骤：
步骤S501，控制器54计算出发热元件52的电阻值RL，然后，进入步骤S502。
步骤S502，使用者点烟后，控制器54再次计算出发热元件52的电阻值RL，然后，进入步骤S503。
步骤S503，控制器54根据步骤S501和步骤S502的计算结果判断发热元件52是否具有电阻温度系数特征。如果两次计算结果基本没有差别或两者的差值在定值电阻的允许范围内，发热元件不具有电阻温度系数特征；如果两次计算结果差值较大，则发热元件具有电阻温度系数特征。如果判断结果为YES，进入步骤S504；如果判断结果为NO，则进入步骤S510。
步骤S504，控制器54判断使用者是否选择控温模式。如果判断结果为YES，则进入步骤S505；如果判断结果为NO，则进入步骤S510。
步骤S505，控制器54计算发热元件52的电阻值RL，然后，进入步骤S506。
步骤S506，控制器54根据发热元件52的电阻值RL计算出发热元件52的温度T，然后，进入步骤S507。
步骤S507，控制器54将发热元件52的温度T与工作温度上限TH和工作温度下限TL进行比较。如果T＞TH，则进入步骤S508；如果T＜TL，则进入步骤S511。
步骤S508，控制器54控制供电装置51减小对发热元件52的输出电压/功率，然后，进入步骤S509。
步骤S509，发热元件52在该输出电压/功率下，工作一段时间，然后，回到步骤S505，并重复之后的过程。本实施例中，工作一段时间可以是1秒。
步骤S510，控制器54自动控制供电装置51对发热元件52恒电压/功率输出或使用者手动选择合适的输出电压/功率。
步骤S511，控制器54判断输出电压/功率是否已达到最大输出电压/功率。如果判断结果为YES，则进入步骤S512；如果判断结果为NO，则进入步骤S513。
步骤S512，控制器54控制供电装置51维持对发热元件52的输出电压/功率，然后，进入步骤S509。
步骤S513，控制器54控制供电装置51增大对发热元件52的输出电压/功率，然后，进入步骤S509。
在其他实施例中，对于所述电子烟温控系统500，可再增加一显示屏组件，用于显示发热元件的温度T、电池电量、工作电压、输出功率等电子烟工作状态的相关信息。
第六实施例：
请参照图12，本发明提供了一种电子烟温控系统600。本实施例与第五实施例相比，不同之处在于：本实施例中，增加了一与控制器54电性连接的输入装置65。使用者可以通过输入装置65输入所需的目标温度TD(TL≤TD≤TH)。在控制器54的控制下，使得发热元件52维持在温度TD±Δt’下工作。其中，Δt’表示温度偏差，由于供电装置51、发热元件52、感温元件53以及控制器54的响应具有一定的滞后性而产生。
请参照图13，本发明的电子烟温控系统600在工作中包括以下步骤：
步骤S601，控制器54计算出发热元件52的电阻值RL，然后，进入步骤S602。
步骤S602，使用者点烟后，控制器54再次计算出发热元件52的电阻值RL，然后，进入步骤S603。
步骤S603，控制器54根据步骤S601和步骤S602的计算结果判断发热元件52是否具有电阻温度系数特征。如果两次计算结果基本没有差别或两者的差值在定值电阻的允许范围内，发热元件不具有电阻温度系数特征；如果两次计算结果差值较大，则发热元件具有电阻温度系数特征。如果判断结果为YES，则进入步骤S604；如果判断结果为NO，则进入步骤S610。
步骤S604，使用者通过输入装置65输入所需的目标温度TD(TL≤TD≤TH)，然后，进入步骤S605。
步骤S605，控制器54计算发热元件52的电阻值RL，然后，进入步骤S606。
步骤S606，控制器54根据发热元件52的电阻值RL计算出发热元件52的温度T，然后，进入步骤S607。
步骤S607，控制器54将发热元件52的温度T与TD进行比较。如果T＞TD，则进入步骤S608；如果T＜TD，则进入步骤S611。
步骤S608，控制器54控制供电装置51减小对发热元件52的输出电压/功率，然后，进入步骤S609。
步骤S609，发热元件52在该输出电压/功率下，工作一段时间，然后，回到步骤S605，并重复之后的过程。本实施例中，工作一段时间可以是1秒。
步骤S610，控制器54自动控制供电装置51对发热元件52恒电压/功率输出或使用者手动选择合适的输出电压/功率。
步骤S611，控制器54判断输出电压/功率是否已达到最大输出电压/功率。如果判断结果为YES，则进入步骤S612；如果判断结果为NO，则进入步骤S613。
步骤S612，控制器54控制供电装置51维持对发热元件52的输出电压/功率，然后，进入步骤S609。
步骤S613，控制器54控制供电装置51增大对发热元件52的输出电压/功率，然后，进入步骤S609。
在其他实施例中，如果使用者不输入TD，则所述电子烟温控系统600的工作步骤与第五实施例相同，此处不再赘述。
在其他实施例中，对于所述电子烟温控系统600，可再增加一显示屏组件，用于显示用户设置的目标温度TD、发热元件的温度T、电池电量、工作电压、输出功率等电子烟工作状态的相关信息。
第七实施例：
请参照图14，本发明提供了一种电子烟温控系统700。本实施例与第一实施例相比，不同之处在于：在本实施例中，在供电装置11和发热元件12之间增加了一温控开关76。所述温控开关76用于在温度作用下连通/断开供电装置和发热元件之间的电路。所述温控开关76设置在电子烟内，优选地，靠近发热元件12设置。考虑到所述温控开关76的温度tS略低于发热元件12的温度T，优选地，应使所述温控开关76的动作温度TM略低于电子烟温控系统700的工作温度上限TH。所述温控76开关是机械式温控开关、电子式温控开关以及温度继电器中的一种、两种或两种以上的任意组合，其中，所述机械式温控开关包括蒸汽压力式温控开关、液体膨胀式温控开关、气体吸附式温控开关以及金属膨胀式温控开关，所述金属膨胀式温控开关包括双金属片开关以及记忆合金开关，所述电子式温控开关包括电阻式温控开关以及热电偶式温控开关，所述温度继电器包括热敏干簧继电器。
当温控开关76的温度tS＜TM时，电子烟温控系统700的工作步骤与第一实施例相同，此处不再赘述；当温控开关76的温度tS＞TM时，温控开关76断开，供电装置11停止向发热元件12供电，发热元件12的温度T自然下降，温控开关76的温度tS也下降，直至tS＜TM，温控开关76再次连通供电装置11和发热元件12之间的电路，使得发热元件12再次按照第一实施例所述步骤正常工作。这样，起到了双重温控保护的效果，尤其是当感温元件13和/或控制器14失灵时，仍能对发热元件12的温度进行一定的控制。
在其他实施例中，第二实施例可参考第七实施例进行相同的改进，在供电装置21和发热元件22之间增加一温控开关，从而达到双重温控保护的效果。
在其他实施例中，第五实施例和第六实施例可参照第七实施例进行相应的改进：在供电装置和发热元件之间增加一温控开关，当发热元件具有电阻温度系数特征时，可达到双重温控保护的效果；当发热元件不具有电阻温度系数特征时，电子烟温控系统的工作步骤与实施例一相同，此处不再赘述。
第八实施例：
请参照图15，本发明提供了一种电子烟温控系统800。与第五实施例相比，在本实施例中，增设了与控制器54电性连接的感温元件83。当发热元件52具有电阻温度系数特征时，可参照第五实施例的方式实现控温；当发热元件52不具有电阻温度系数特征时，可参照第一实施例的方式实现控温。替代地，可将一温控开关与控制器电性连接，当发热元件52不具有电阻温度系数特征时，可参照实施例四的方式实现控温。
所述电子烟温控系统800具有如下有益效果：当使用者使用含有电阻温度系数特征的发热元件的雾化装置时，可以按照第五实施例的方式实现控温；当使用者使用不含有电阻温度系数特征的发热元件的雾化装置时，可以按照第一实施例，替代地，可以按照第四实施例的方式实现控温。这样，增加了电子烟温控系统及其电子烟的通用性。
在其他实施例中，还可在供电装置51和发热元件52之间增加一温控开关，起到双重温控保护的作用，尤其是当感温元件83和/或控制器54失灵时，仍能对发热元件52的温度进行一定的控制。
第九实施例：
请参照图16，本发明提供了一种电子烟温控系统900。与第六实施例相比，在本实施例中，增设了与控制器64电性连接的感温元件93。当发热元件62具有电阻温度系数特征时，可参照第六实施例的方式实现发热元件62在目标温度TD±Δt’下工作；当发热元件62不具有电阻温度系数特征时，可参照第二实施例的方式实现发热元件62在目标温度TD±Δt’下工作。
在其他实施例中，还可在供电装置61和发热元件62之间增加一温控开关起到双重温控保护的作用。
第十实施例：
请参照图17，本发明提供了一种电子烟10，其包括壳体101、烟嘴102、储液腔103、导液元件104以及电子烟温控系统100。所述温控系统100通过导液元件104与储液腔103连通，用于加热烟液使其雾化，并将发热元件12的温度控制在合理范围内。
可以理解地，所述电子烟温控系统100可以由第二实施例至第九实施例中的任一电子烟温控系统(200、300、400、500、600、700、800、900)、或在第一实施例至第九实施例中的任一电子烟温控系统(100、200、300、400、500、600、700、800、900)的基础上做出改进而得的电子烟温控系统所替代。
可以理解地，第一实施例至第九实施例中的任一电子烟温控系统及在第一实施例至第九实施例中的任一电子烟温控系统的基础上做出改进而得的电子烟温控系统可以应用于任何一种电子烟，而不受限于电子烟的导液方式、雾化方式、雾化基质的种类(如烟丝、烟油或烟膏)、加热方式等。

Claims (11)

  1. 一种电子烟温控系统，其特征在于：该电子烟温控系统包括供电装置、发热元件、感温元件以及控制器，所述供电装置分别与发热元件、控制器电性连接，所述感温元件与控制器电性连接，用于感应发热元件的温度T的变化，并反馈给控制器，所述控制器用于根据感温元件的相关物理量x计算得出感温元件的温度t，再由感温元件的温度t计算得出发热元件的温度T。
  2. 根据权利要求1所述的电子烟温控系统，其特征在于：所述感温元件是PTC热敏电阻、NTC热敏电阻、双金属片、热电偶、石英晶体温度传感器、光纤温度传感器、红外温度传感器以及P-N结温度传感器中的一种、两种或两种以上的任意组合。
  3. 根据权利要求1所述的电子烟温控系统，其特征在于：所述感温元件靠近发热元件设置。
  4. 根据权利要求1所述的电子烟温控系统，其特征在于：所述控制器还用于将发热元件的温度T与工作温度上限TH和工作温度下限TL进行比较，最后根据比较结果控制供电装置向发热元件的输出电压/功率。
  5. 根据权利要求1所述的电子烟温控系统，其特征在于：所述相关物理量x是温度t、电阻、电压、电流、谐振频率、光功率中的一种、两种或两种以上的组合。
  6. 根据权利要求1所述的电子烟温控系统，其特征在于：所述感温元件是PTC热敏电阻，所述相关物理量x是PTC热敏电阻的电阻值RT。
  7. 根据权利要求6所述的电子烟温控系统，其特征在于：该电子烟温控系统还包括一与感温元件串联的定值电阻R5，R5两端的电压为Ve-Vf，通过R5的电流为(Ve-Vf)/R5，感温元件两端的电压为Vf，感温元件的电阻RT＝R5*Vf/(Ve-Vf)。
  8. 根据权利要求1或4所述的电子烟温控系统，其特征在于：所述控制器包括依次电性连接的检测单元、运算单元以及控制单元；
    检测单元，与感温元件电性连接，用于检测感温元件两端的电压Vf，并将Vf反馈给运算单元；
    运算单元，预先存储有运算公式：RT＝R5*Vf/(Ve-Vf)、感温元件的电阻值RT与其温度t的对应关系数据以及运算公式：T＝t+Δt，用于根据预先存储的运算公式及对应关系数据计算出发热元件的温度T，并将T反馈给控制单元；
    控制单元，用于将发热元件的温度T与预先存储的工作温度上限TH和工作温度下限TL进行比较，并根据比较结果，控制供电装置向发热元件的输出电压/功率。
  9. 根据权利要求1所述的电子烟温控系统，其特征在于：所述电子烟温控系统还包括一与所述控制器电性连接的输入装置，所述输入装置用于供使用者输入所需的目标温度TD，TL≤TD≤TH。
  10. 根据权利要求1所述的电子烟温控系统，其特征在于：所述电子烟温控系统还包括一温控开关，所述温控开关串联在供电装置和发热元件之间，当所述感温元件和/或控制器失灵时，所述温控开关也可起到控温的效果。
  11. 一种电子烟，其特征在于：包含权利要求1-10中任一项所述电子烟温控系统。
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