CN111580582A - Control circuit and control method capable of achieving zone temperature control and electronic cigarette heating device - Google Patents
Control circuit and control method capable of achieving zone temperature control and electronic cigarette heating device Download PDFInfo
- Publication number
- CN111580582A CN111580582A CN202010421692.2A CN202010421692A CN111580582A CN 111580582 A CN111580582 A CN 111580582A CN 202010421692 A CN202010421692 A CN 202010421692A CN 111580582 A CN111580582 A CN 111580582A
- Authority
- CN
- China
- Prior art keywords
- circuit
- heating
- resistor
- current
- temperature
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The embodiment of the application provides a control circuit, a control method and an electronic cigarette heating device capable of controlling temperature in a partitioned mode, wherein the control circuit comprises: the switching circuit is used for controlling the power supply module to supply power to the heating circuit when the switching circuit is switched on so as to increase the heating temperature of the heating circuit, and is also used for controlling the power supply module to stop supplying power to the heating circuit when the switching circuit is switched off so as to reduce the heating temperature of the heating circuit; the detection circuit is used for detecting the current parameters of the heating circuit in real time; the controller is used for acquiring the current heating temperature of the heating circuit according to the current parameters of the heating circuit, comparing the current heating temperature with the preset temperature, and outputting a corresponding control signal according to the comparison result to enable the switching circuit to be switched on or switched off. The application provides a but control circuit of subregion accuse temperature can solve the temperature that generates heat of every place in the control source that can not be accurate among the prior art to the degree of toasting that makes different local pipe tobacco is inhomogeneous, influences the problem of smoking taste.
Description
Technical Field
The application relates to the technical field of electronic cigarettes, in particular to a control circuit and a control method capable of controlling temperature in a partitioned mode and an electronic cigarette heating device.
Background
The electronic cigarette without heating and burning utilizes a heating source to heat the cut tobacco, the cut tobacco is only heated and does not burn, and the temperature is usually 300-380 ℃; the electronic cigarette is heated and not combusted to be used as a substitute of the traditional cigarette, most harmful substances in the traditional cigarette are removed, the electronic cigarette has real tobacco taste in taste, and the harm to the health of smokers is effectively reduced, so the electronic cigarette is popular with consumers.
At present, the heating device for heating the non-combustible electronic cigarette heats the cut tobacco by adopting a mode of integral independent heating, so that the heating temperature of each place of a heating source can not be accurately controlled, the baking degree of the cut tobacco at different places is uneven, the smoking taste is influenced, and the requirement of a user is not met.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art to a certain extent, and therefore the invention aims to provide a control circuit capable of controlling temperature in a partitioned manner, a control method and an electronic cigarette heating device, which can solve the problems that in the prior art, the heating temperature of each place of a heating source cannot be accurately controlled, so that the baking degree of tobacco shreds in different places is not uniform, and the taste of smoking is influenced.
In a first aspect, the present invention provides a control circuit capable of controlling temperature in a partitioned manner, which is applied to a heating device of an electronic cigarette, and the control circuit includes: the device comprises a controller and a plurality of paths of same adjusting feedback circuits, wherein each path of adjusting feedback circuit comprises a switch circuit, a detection circuit and a heating circuit; the first input end of the switching circuit is connected with the power supply module, the output end of the switching circuit is connected with the input end of the heating circuit, and the switching circuit is used for controlling the power supply module to supply power to the heating circuit to increase the heating temperature of the heating circuit when the switching circuit is switched on, and is also used for controlling the power supply module to stop supplying power to the heating circuit to reduce the heating temperature of the heating circuit when the switching circuit is switched off; the input end of the detection circuit is connected with the heating circuit, and the output end of the detection circuit is connected with the input end of the controller and is used for detecting the current parameters of the heating circuit in real time; the output end of the controller is connected with the second input end of the switching circuit, and is used for acquiring the current heating temperature of the heating circuit according to the current parameters of the heating circuit, comparing the current heating temperature with a preset temperature, and outputting a corresponding control signal according to the comparison result to enable the switching circuit to be switched on or switched off; wherein the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device.
Optionally, the detection circuit comprises: the input end of the current detection circuit is connected with the heating circuit, and the output end of the current detection circuit is connected with the first input end of the controller and is used for detecting the current first voltage value of the heating circuit, so that the controller calculates the current value of the heating circuit according to the current first voltage value; the input end of the voltage detection circuit is connected with the heating circuit, and the output end of the voltage detection circuit is connected with the second output end of the controller and used for detecting the current second voltage value of the heating circuit, so that the controller obtains the current heating temperature according to the current second voltage value and the current value; wherein the current first voltage value and the current second voltage value are current parameters of the heating circuit.
Optionally, the current detection circuit comprises: a first end of the first resistor is connected with the output end of the switch circuit, and a second end of the first resistor is connected with the heating circuit; the positive phase input end of the amplifier is connected with the first end of the first resistor, the negative phase input end of the amplifier is connected with the second end of the first resistor, and the output end of the amplifier is connected with the first input end of the controller.
Optionally, the current detection circuit further comprises: a first end of the second resistor is connected with a first end of the first resistor, and a second end of the second resistor is connected with a non-inverting input end of the amplifier; a first end of the third resistor is connected with a second end of the first resistor, and a second end of the third resistor is connected with an inverting input end of the amplifier; and a first end of the first capacitor is connected with the second end of the second resistor, and a second end of the first capacitor is connected with the second end of the third resistor.
Optionally, the voltage detection circuit includes: a first end of the fourth resistor is connected with a second end of the first resistor; a first end of the fifth resistor is connected with a second end of the fourth resistor, and a second end of the fifth resistor is grounded; and a first end of the sixth resistor is connected with a first end of the fifth resistor, and a second end of the sixth resistor is connected with a second input end of the controller.
Optionally, the switching circuit comprises: the grid electrode of the P-type field effect transistor is connected with the output end of the controller, the drain electrode of the P-type field effect transistor is connected with the first end of the first resistor, and the source electrode of the P-type field effect transistor is connected with the power supply module; the source electrode of the P-type field effect transistor is a first input end of the switch circuit, the grid electrode of the P-type field effect transistor is a second input end of the switch circuit, and the drain electrode of the P-type field effect transistor is an output end of the switch circuit.
Optionally, the switching circuit further comprises: a first end of the seventh resistor is connected with the output end of the controller, and a second end of the seventh resistor is connected with the grid electrode of the P-type field effect transistor; and a first end of the eighth resistor is connected with a first end of the seventh resistor, and a second end of the eighth resistor is connected with a source electrode of the P-type field effect transistor.
Optionally, the heat generating circuit comprises: the first end of the thick film resistor is connected with the output end of the switch circuit, and the second end of the thick film resistor is grounded.
In a second aspect, the present invention provides a control method for temperature control in a partitioned manner, which is applied to a control circuit for temperature control in a partitioned manner, wherein the control circuit comprises a controller and multiple paths of identical regulating feedback circuits, each path of regulating feedback circuit comprises a switch circuit, a detection circuit and a heating circuit, and the method comprises: the detection circuit detects the current parameters of the heating circuit in real time; the controller acquires the current heating temperature of the heating circuit according to the current parameters; the controller compares the current heating temperature with a preset temperature; the controller outputs a corresponding control signal according to the comparison result to enable the switch circuit to be switched on or switched off; when the current heating temperature is lower than the preset temperature, the controller controls the switching circuit to be conducted, so that the power module supplies power to the heating circuit, and the heating temperature of the heating circuit is increased; when the current heating temperature is greater than or equal to the preset temperature, the controller controls the switching circuit to be switched off, so that the power supply module stops supplying power to the heating circuit, and the heating temperature of the heating circuit is reduced; the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device.
In a third aspect, the invention provides an electronic cigarette heating device, which includes the above control circuit capable of controlling temperature in a partitioned manner.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the embodiment of the application provides a control circuit, a control method and an electronic cigarette heating device capable of controlling temperature in a partitioned mode, wherein the control circuit comprises: the device comprises a controller and a plurality of paths of same adjusting feedback circuits, wherein each path of adjusting feedback circuit comprises a switch circuit, a detection circuit and a heating circuit; the first input end of the switching circuit is connected with the power supply module, the output end of the switching circuit is connected with the input end of the heating circuit, and the switching circuit is used for controlling the power supply module to supply power to the heating circuit to increase the heating temperature of the heating circuit when the switching circuit is switched on, and is also used for controlling the power supply module to stop supplying power to the heating circuit to reduce the heating temperature of the heating circuit when the switching circuit is switched off; the input end of the detection circuit is connected with the heating circuit, and the output end of the detection circuit is connected with the input end of the controller and is used for detecting the current parameters of the heating circuit in real time; the output end of the controller is connected with the second input end of the switching circuit, and is used for acquiring the current heating temperature of the heating circuit according to the current parameters of the heating circuit, comparing the current heating temperature with a preset temperature, and outputting a corresponding control signal according to the comparison result to enable the switching circuit to be switched on or switched off; wherein the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device. The control circuit capable of controlling the temperature in the partitioned mode calculates the current heating temperature according to the current parameters of the heating circuit detected by the detection circuit in real time, and then compares the current heating temperature with the preset heating temperature; and the control circuit of this application includes multichannel regulation feedback circuit, make the heating circuit setting in every way regulation feedback circuit in the zone of heating of difference, and every way regulation feedback circuit all has the closed loop circuit who independently detects and adjust heating temperature, the heating temperature of the heating circuit through setting up the corresponding zone of heating of the preset heating temperature real time control in different zones of heating, consequently can the control circuit of subregion accuse temperature can solve the every local heating temperature of control source that can not be accurate among the prior art, thereby make the degree of toasting of different local pipe tobacco inhomogeneous, influence the problem of smoking taste.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a block diagram of a control circuit capable of controlling temperature in different zones according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a temperature-divisionally controllable control circuit according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for controlling temperature in a partitioned manner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic cigarette heating device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a block diagram of a control circuit capable of controlling temperature in a partitioned manner according to an embodiment of the present invention, and as shown in fig. 1, the control circuit is applied to an electronic cigarette heating device, and includes:
the controller 100 and a plurality of paths of identical regulating feedback circuits 200, wherein each path of regulating feedback circuit 200 comprises a switching circuit 210, a detection circuit 230 and a heating circuit 220;
the first input end of the switch circuit 210 is connected to the power module 300, and the output end of the switch circuit 210 is connected to the input end of the heating circuit 220, so as to control the power module 300 to supply power to the heating circuit 220 when the switch circuit 210 is turned on, so as to increase the heating temperature of the heating circuit 220, and to control the power module 300 to stop supplying power to the heating circuit 220 when the switch circuit 210 is turned off, so as to decrease the heating temperature of the heating circuit 220;
the input end of the detection circuit 230 is connected to the heating circuit 220, and the output end of the detection circuit 230 is connected to the input end of the controller 100, and is used for detecting the current parameter of the heating circuit 220 in real time;
the output end of the controller 100 is connected to the second input end of the switching circuit 210, and is configured to obtain a current heating temperature of the heating circuit 220 according to a current parameter of the heating circuit 220, compare the current heating temperature with a preset temperature, and output a corresponding control signal according to a comparison result, so that the switching circuit 210 is turned on or off;
wherein the heating circuits 220 of the multiple paths of identical regulating feedback circuits 200 are arranged in different areas of the electronic cigarette heating device.
In practical application, the control circuit capable of controlling temperature in a partitioned manner provided by this embodiment includes at least two adjusting feedback circuits 200, a controller 100 and a power module 300, the power module 300 provides electric energy for the at least two adjusting feedback circuits 200, and the controller 100 independently controls the input signal of the corresponding adjusting feedback circuit 200 according to the output signal of the adjusting feedback circuit 200 to form a closed-loop feedback and automatically-adjusting temperature control loop, because the working principle and the circuit structure of the adjusting feedback circuits 200 are the same, and only the setting positions of the heating circuit 220 applied in different scenes are different, only one of the structural schematic diagrams is shown in fig. 1.
The working principle of the control circuit capable of controlling temperature in a partitioned mode in the embodiment is as follows: the detection circuit 230 detects a current parameter of the heating circuit 220 in real time and outputs the current parameter to the controller 100, so that the controller 100 obtains a current heating temperature of the heating circuit 220 according to the current parameter, compares the current heating temperature with a preset temperature, and when the current heating temperature is lower than the preset temperature, the controller 100 sends a first control signal to control the switch circuit 210 to be switched on, so that the power module 300 supplies power to the heating circuit 220, and then the heating temperature of the heating circuit 220 is increased; when the current heating temperature is greater than or equal to the preset temperature, the controller 100 sends a second control signal to control the switching circuit 210 to be turned off, so that the power module 300 stops supplying power to the heating circuit 220, and the heating temperature of the heating circuit 220 is reduced.
Therefore, the control circuit capable of controlling temperature in a partitioned manner provided by the application can calculate the current heating temperature according to the current parameter of the heating circuit 220 detected by the detection circuit 230 in real time, and then compares the current heating temperature with the preset heating temperature, if the current heating temperature is lower than the preset temperature, the switch circuit 210 is controlled to be closed to increase the heating temperature of the heating circuit 220, and if the current heating temperature is higher than the preset temperature, the switch circuit 210 is controlled to be opened to reduce the heating temperature of the heating circuit 220, so that the heating temperature of the heating circuit 220 can be accurately controlled; and the control circuit of this application includes multichannel regulation feedback circuit 200, make every way heating circuit 220 among the regulation feedback circuit 200 set up in the zone of heating of difference, and every way regulation feedback circuit 200 all has independent detection and adjusts heating temperature's closed loop circuit, through setting up the heating temperature of the heating circuit 220 of the corresponding zone of heating of the preset heating temperature real-time control of different zones of heating, consequently can the control circuit of subregion accuse temperature can solve the heating temperature of every place of the control heat source that can not be accurate among the prior art, thereby make the baking degree of different local pipe tobacco inhomogeneous, influence the problem of smoking taste.
Fig. 2 is a schematic circuit diagram of a control circuit capable of controlling temperature in a partitioned manner according to an embodiment of the present invention, where the detection circuit 230 includes:
a current detection circuit 231, an input end of the current detection circuit 231 is connected to the heating circuit 220, an output end of the current detection circuit 231 is connected to a first input end of the controller 100, and is configured to detect a current first voltage value of the heating circuit 220, so that the controller 100 calculates a current value of the heating circuit 220 according to the current first voltage value;
the input end of the voltage detection circuit 232 is connected to the heating circuit 220, and the output end of the voltage detection circuit 232 is connected to the second output end of the controller 100, and is configured to detect a current second voltage value of the heating circuit 220, so that the controller 100 obtains a current heating temperature according to the current second voltage value and the current value; wherein the current first voltage value and the current second voltage value are current parameters of the heating circuit.
In one embodiment of the present invention, the current detection circuit 231 includes:
a first resistor R1, a first end of the first resistor R1 is connected to the output end of the switch circuit 210, and a second end of the first resistor R1 is connected to the heating circuit 220; an amplifier U, a non-inverting input terminal of which is connected to a first terminal of the first resistor R1, an inverting input terminal of which is connected to a second terminal of the first resistor R1, and an output terminal of which is connected to a first input terminal of the controller 100; in this embodiment, a non-inverting input terminal of the amplifier U is pin 4, an inverting input terminal is pin 5, an output terminal is pin 6, a pin 3 of the amplifier U is connected to a power supply, a first end of a second capacitor C2 is connected to the pin 3 of the amplifier U, a second end of the second capacitor C2 is connected to the pin 2 of the amplifier U, and the pin 1 of the amplifier U is grounded; the amplifier U amplifies the voltage of the first resistor R1 and outputs the amplified voltage to the controller 100, so that the controller calculates the current flowing through the first resistor R1 according to the voltage of the first resistor R1 and the resistance of the first resistor R1, where the current is the current input to the heating circuit 220.
Further, the current detection circuit 231 further includes:
a second resistor R2, a first terminal of the second resistor R2 being connected to a first terminal of the first resistor R1, a second terminal of the second resistor R2 being connected to a non-inverting input terminal of the amplifier U; a third resistor R3, a first end of the third resistor R3 is connected with a second end of the first resistor R1, and a second end of the third resistor R3 is connected with an inverting input end of the amplifier U; a first capacitor C1, a first terminal of the first capacitor C1 is connected to the second terminal of the second resistor R2, and a second terminal of the first capacitor C1 is connected to the second terminal of the third resistor R3; the second resistor R2, the third resistor R3 and the first capacitor C1 form a filter circuit, and the filter circuit rectifies and filters the input voltage of the amplifier U.
In one embodiment of the present invention, the voltage detection circuit 232 includes:
a fourth resistor R4, wherein a first end of the fourth resistor R4 is connected with a second end of the first resistor R1; a fifth resistor R5, wherein a first end of the fifth resistor R5 is connected with a second end of the fourth resistor R4, and a second end of the fifth resistor R5 is grounded; a sixth resistor R6, a first terminal of the sixth resistor R6 being connected to a first terminal of the fifth resistor R5, a second terminal of the sixth resistor R6 being connected to a second input terminal of the controller 100; the sixth resistor R6 is a current limiting resistor to prevent the voltage inputted to the controller 100 from being too large, so the voltage outputted by the voltage detection circuit 232 is the voltage between the fourth resistor R4 and the fifth resistor R5, and the voltage is the voltage value of the heat generating circuit 220.
In one embodiment of the present invention, the switching circuit includes:
a gate of the P-type field effect transistor Q is connected to the output end of the controller 100, a drain of the P-type field effect transistor Q is connected to the first end of the first resistor R1, and a source of the P-type field effect transistor Q is connected to the power module 300; a seventh resistor R7, a first end of the seventh resistor R7 is connected to the output end of the controller 100, and a second end of the seventh resistor R7 is connected to the gate of the pfet; an eighth resistor R8, wherein a first end of the eighth resistor R8 is connected to a first end of the seventh resistor R7, and a second end of the eighth resistor R8 is connected to the source of the PFET; the source (pin 4 and pin 8) of the P-type field effect transistor Q is the first input terminal of the switch circuit 210, the gate (pin 3) of the P-type field effect transistor Q is the second input terminal of the switch circuit 210, and the drain (pin 1, pin 2, pin 5 and pin 6) of the P-type field effect transistor Q is the output terminal of the switch circuit 210.
The heat generating circuit 220 includes: in practical application, the first end of the first thick film resistor is connected to pin 1 of the interface P, the second end of the first thick film resistor is connected to pin 3 of the interface P, pin 3 of the interface U is grounded, the first end of the second thick film resistor is connected to pin 2 of the interface P, and the second end of the second thick film resistor is connected to pin 3 of the interface P; the thick film resistor can generate heat along with the input power, the resistor can also change along with the change of the temperature, and the heating temperature of the thick film resistor can be obtained through methods such as table lookup and the like by detecting the resistance value of the thick film resistor.
The amplified voltage of the first resistor R1 output by the current detection circuit 231 is sent to the controller 100, so that the controller 100 obtains the current value of the thick film resistor according to the amplified voltage and the resistance value of the first resistor R1; the voltage detection circuit 232 outputs the voltage value of the thick film resistor to the controller 100, so that the controller 100 calculates the resistance value of the thick film resistor according to the voltage value and the current value, and then obtains the heating temperature of the thick film resistor through table lookup according to the resistance value of the thick film resistor, the controller 100 compares the heating temperature with a preset temperature, when the heating temperature is lower than the preset temperature, the controller 100 outputs a low level signal to the gate of the P-type field effect transistor Q to conduct the P-type field effect transistor Q, and the power module 300 supplies power to the thick film resistor to increase the heating temperature of the thick film resistor to the preset temperature; when the heating temperature is higher than the preset temperature, the controller 100 outputs a high level signal to the grid of the P-type field effect transistor Q to turn off the P-type field effect transistor Q, and the power module 300 stops supplying power to the thick film resistor to reduce the heating temperature of the thick film resistor to the preset temperature.
Fig. 3 is a flowchart of a control method for controlling temperature in a partitioned manner according to an embodiment of the present invention, and as shown in fig. 3, the control method for controlling temperature in a partitioned manner is applied to a control circuit for controlling temperature in a partitioned manner, where the control circuit includes a controller and multiple paths of identical regulating feedback circuits, each path of regulating feedback circuit includes a switch circuit, a detection circuit, and a heating circuit, and specifically includes the following steps:
step S101, the detection circuit detects the current parameters of the heating circuit in real time;
step S102, the controller obtains the current heating temperature of the heating circuit according to the current parameters;
step S103, judging whether the current heating temperature is lower than a preset temperature or not by the controller, executing step S104 when the heating temperature is lower than the preset temperature, and executing step S105 when the heating temperature is higher than or equal to the preset temperature;
step S104, the controller controls the switch circuit to be conducted, so that the power module supplies power to the heating circuit, and the heating temperature of the heating circuit is increased;
step S105, the controller controls the switch circuit to be switched off, so that the power supply module stops supplying power to the heating circuit, and the heating temperature of the heating circuit is reduced;
wherein the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device.
Specifically, the controller calculates a current heating temperature according to the current parameter output by the detection circuit, compares the heating temperature with a preset temperature, and outputs a corresponding control signal according to a comparison result to turn on or off the switch circuit, for example, when the current heating temperature is lower than the preset temperature, the controller sends a first control signal to control the switch circuit to be turned on, so that a power module supplies power to the heating circuit, and the heating temperature of the heating circuit increases; when the current heating temperature is greater than or equal to the preset temperature, the controller sends a second control signal to control the switching circuit to be switched off, so that the power module stops supplying power to the heating circuit, and the heating temperature of the heating circuit is reduced.
Fig. 4 is a schematic structural diagram of an electronic cigarette heating device according to an embodiment of the present invention, where the electronic cigarette heating device includes a ceramic heating rod 410, a ceramic rod fixing part 420, and a plurality of metal wires 430, two or more thick film resistors are built in the ceramic heating rod 410 to form a plurality of heating zones, where a first heating zone 411 is a front end region of the ceramic heating rod 410, a second heating zone 412 is a middle region of the ceramic heating rod 410, and a third heating zone 413 is a terminal of the ceramic heating rod 410; the tail end of the ceramic heating rod 410 is provided with n +1 electrodes, the independent 1 electrode is a common end bonding pad of each thick film resistor, the other end of the rear film resistor is respectively connected with each electrode, and a metal lead 430 is led out from each electrode; when the heating rod works, the independent electrodes and the other electrodes are electrified to generate heat, and the temperature of each area corresponding to the heating rod is controlled by controlling whether each electrode is electrified, so that each part can be heated simultaneously, and the temperature of each area can be accurately controlled.
The embodiment of the application provides a control circuit, a control method and an electronic cigarette heating device capable of controlling temperature in a partitioned mode, wherein the control circuit comprises: the device comprises a controller and a plurality of paths of same adjusting feedback circuits, wherein each path of adjusting feedback circuit comprises a switch circuit, a detection circuit and a heating circuit; the first input end of the switching circuit is connected with the power supply module, the output end of the switching circuit is connected with the input end of the heating circuit, and the switching circuit is used for controlling the power supply module to supply power to the heating circuit to increase the heating temperature of the heating circuit when the switching circuit is switched on, and is also used for controlling the power supply module to stop supplying power to the heating circuit to reduce the heating temperature of the heating circuit when the switching circuit is switched off; the input end of the detection circuit is connected with the heating circuit, and the output end of the detection circuit is connected with the input end of the controller and is used for detecting the current parameters of the heating circuit in real time; the output end of the controller is connected with the second input end of the switching circuit, and is used for acquiring the current heating temperature of the heating circuit according to the current parameters of the heating circuit, comparing the current heating temperature with a preset temperature, and outputting a corresponding control signal according to the comparison result to enable the switching circuit to be switched on or switched off; wherein the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device. The control circuit capable of controlling the temperature in the partitioned mode calculates the current heating temperature according to the current parameters of the heating circuit detected by the detection circuit in real time, and then compares the current heating temperature with the preset heating temperature; and the control circuit of this application includes multichannel regulation feedback circuit, make the heating circuit setting in every way regulation feedback circuit in the zone of heating of difference, and every way regulation feedback circuit all has the closed loop circuit who independently detects and adjust heating temperature, the heating temperature of the heating circuit through setting up the corresponding zone of heating of the preset heating temperature real time control in different zones of heating, consequently can the control circuit of subregion accuse temperature can solve the every local heating temperature of control source that can not be accurate among the prior art, thereby make the degree of toasting of different local pipe tobacco inhomogeneous, influence the problem of smoking taste.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a control circuit of subregion accuse temperature which is applied to electron cigarette heating device, control circuit includes:
the device comprises a controller and a plurality of paths of same adjusting feedback circuits, wherein each path of adjusting feedback circuit comprises a switch circuit, a detection circuit and a heating circuit;
the first input end of the switching circuit is connected with the power supply module, the output end of the switching circuit is connected with the input end of the heating circuit, and the switching circuit is used for controlling the power supply module to supply power to the heating circuit to increase the heating temperature of the heating circuit when the switching circuit is switched on, and is also used for controlling the power supply module to stop supplying power to the heating circuit to reduce the heating temperature of the heating circuit when the switching circuit is switched off;
the input end of the detection circuit is connected with the heating circuit, and the output end of the detection circuit is connected with the input end of the controller and is used for detecting the current parameters of the heating circuit in real time;
the output end of the controller is connected with the second input end of the switching circuit, and is used for acquiring the current heating temperature of the heating circuit according to the current parameters of the heating circuit, comparing the current heating temperature with a preset temperature, and outputting a corresponding control signal according to the comparison result to enable the switching circuit to be switched on or switched off;
wherein the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device.
2. The control circuit of claim 1, wherein the detection circuit comprises:
the input end of the current detection circuit is connected with the heating circuit, and the output end of the current detection circuit is connected with the first input end of the controller and is used for detecting the current first voltage value of the heating circuit, so that the controller calculates the current value of the heating circuit according to the current first voltage value;
the input end of the voltage detection circuit is connected with the heating circuit, and the output end of the voltage detection circuit is connected with the second output end of the controller and used for detecting the current second voltage value of the heating circuit, so that the controller obtains the current heating temperature according to the current second voltage value and the current value;
wherein the current first voltage value and the current second voltage value are current parameters of the heating circuit.
3. The control circuit of claim 2, wherein the current detection circuit comprises:
a first end of the first resistor is connected with the output end of the switch circuit, and a second end of the first resistor is connected with the heating circuit;
the positive phase input end of the amplifier is connected with the first end of the first resistor, the negative phase input end of the amplifier is connected with the second end of the first resistor, and the output end of the amplifier is connected with the first input end of the controller.
4. The control circuit of claim 3, wherein the current sense circuit further comprises:
a first end of the second resistor is connected with a first end of the first resistor, and a second end of the second resistor is connected with a non-inverting input end of the amplifier;
a first end of the third resistor is connected with a second end of the first resistor, and a second end of the third resistor is connected with an inverting input end of the amplifier;
and a first end of the first capacitor is connected with the second end of the second resistor, and a second end of the first capacitor is connected with the second end of the third resistor.
5. The control circuit of claim 4, wherein the voltage detection circuit comprises:
a first end of the fourth resistor is connected with a second end of the first resistor;
a first end of the fifth resistor is connected with a second end of the fourth resistor, and a second end of the fifth resistor is grounded;
and a first end of the sixth resistor is connected with a first end of the fifth resistor, and a second end of the sixth resistor is connected with a second input end of the controller.
6. The control circuit of claim 5, wherein the switching circuit comprises:
the grid electrode of the P-type field effect transistor is connected with the output end of the controller, the drain electrode of the P-type field effect transistor is connected with the first end of the first resistor, and the source electrode of the P-type field effect transistor is connected with the power supply module;
the source electrode of the P-type field effect transistor is a first input end of the switch circuit, the grid electrode of the P-type field effect transistor is a second input end of the switch circuit, and the drain electrode of the P-type field effect transistor is an output end of the switch circuit.
7. The control circuit of claim 6, wherein the switching circuit further comprises:
a first end of the seventh resistor is connected with the output end of the controller, and a second end of the seventh resistor is connected with the grid electrode of the P-type field effect transistor;
and a first end of the eighth resistor is connected with a first end of the seventh resistor, and a second end of the eighth resistor is connected with a source electrode of the P-type field effect transistor.
8. The control circuit of any one of claims 1 to 7, wherein the heat generating circuit comprises:
the first end of the thick film resistor is connected with the output end of the switch circuit, and the second end of the thick film resistor is grounded.
9. A control method capable of controlling temperature in a partition manner is characterized by being applied to a control circuit capable of controlling temperature in a partition manner, wherein the control circuit comprises a controller and a plurality of paths of identical regulating feedback circuits, each path of regulating feedback circuit comprises a switching circuit, a detection circuit and a heating circuit, and the method comprises the following steps:
the detection circuit detects the current parameters of the heating circuit in real time;
the controller acquires the current heating temperature of the heating circuit according to the current parameters;
the controller compares the current heating temperature with a preset temperature;
the controller outputs a corresponding control signal according to the comparison result to enable the switch circuit to be switched on or switched off;
wherein when the current heating temperature is lower than the preset temperature, the controller controls the switch circuit to be switched on, so that the power module supplies power to the heating circuit, the heating temperature of the heating circuit is increased,
when the current heating temperature is greater than or equal to the preset temperature, the controller controls the switching circuit to be switched off, so that the power supply module stops supplying power to the heating circuit, the heating temperature of the heating circuit is reduced,
the heating circuits of the multiple paths of same adjusting feedback circuits are arranged in different areas of the electronic cigarette heating device.
10. The electronic cigarette heating device is characterized by comprising the control circuit which can control temperature in a partitioned mode and is in any one of 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421692.2A CN111580582A (en) | 2020-05-18 | 2020-05-18 | Control circuit and control method capable of achieving zone temperature control and electronic cigarette heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421692.2A CN111580582A (en) | 2020-05-18 | 2020-05-18 | Control circuit and control method capable of achieving zone temperature control and electronic cigarette heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111580582A true CN111580582A (en) | 2020-08-25 |
Family
ID=72113675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010421692.2A Pending CN111580582A (en) | 2020-05-18 | 2020-05-18 | Control circuit and control method capable of achieving zone temperature control and electronic cigarette heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111580582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022133999A1 (en) * | 2020-12-25 | 2022-06-30 | 京东方科技集团股份有限公司 | Temperature control system and driving method therefor, and liquid crystal device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1723079A (en) * | 2003-09-29 | 2006-01-18 | 卡西欧计算机株式会社 | Thermal treatment apparatus and power generation module |
| CN101571414A (en) * | 2008-04-30 | 2009-11-04 | 株式会社日立制作所 | Thermal type flow meter |
| CN104703308A (en) * | 2015-02-12 | 2015-06-10 | 颐中（青岛）实业有限公司 | Partition temperature control type electronic cigarette heater |
| CN104816467A (en) * | 2015-04-24 | 2015-08-05 | 东南大学 | Intelligent welding method for electrofusion pipe fittings |
| CN107822207A (en) * | 2017-12-05 | 2018-03-23 | 深圳市余看智能科技有限公司 | A kind of subsection heating device for heating the cigarette that do not burn |
| CN207557710U (en) * | 2017-11-02 | 2018-06-29 | 北京华亘安邦科技有限公司 | The temperature-adjusting circuit of heating chip based on itself thermometric |
| CN108873981A (en) * | 2018-06-25 | 2018-11-23 | 深圳市丽福科技有限责任公司 | The control method and device of electronic cigarette heating temperature |
| CN208259013U (en) * | 2018-05-18 | 2018-12-21 | 湖南中烟工业有限责任公司 | A kind of section heating type heater and low temperature smoking set |
| CN109445481A (en) * | 2018-10-09 | 2019-03-08 | 深圳思格瑞格科技有限公司 | Heating bar temperature-control circuit |
| CN109619701A (en) * | 2018-02-12 | 2019-04-16 | 广东天物新材料科技有限公司 | A kind of electronic cigarette and its method for heating and controlling of Segmented heating |
| CN109907374A (en) * | 2019-03-13 | 2019-06-21 | 深圳市丽福科技有限责任公司 | It is segmented heating type temperature control system and electronic cigarette |
| CN110101122A (en) * | 2019-05-15 | 2019-08-09 | 深圳市新宜康科技股份有限公司 | A kind of multistage temperature control method heating not combustion system |
| CN209514375U (en) * | 2019-04-26 | 2019-10-18 | 深圳市海派特光伏科技有限公司 | The control circuit and electronic cigarette of electronic cigarette |
-
2020
- 2020-05-18 CN CN202010421692.2A patent/CN111580582A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1723079A (en) * | 2003-09-29 | 2006-01-18 | 卡西欧计算机株式会社 | Thermal treatment apparatus and power generation module |
| CN101571414A (en) * | 2008-04-30 | 2009-11-04 | 株式会社日立制作所 | Thermal type flow meter |
| CN104703308A (en) * | 2015-02-12 | 2015-06-10 | 颐中（青岛）实业有限公司 | Partition temperature control type electronic cigarette heater |
| CN104816467A (en) * | 2015-04-24 | 2015-08-05 | 东南大学 | Intelligent welding method for electrofusion pipe fittings |
| CN207557710U (en) * | 2017-11-02 | 2018-06-29 | 北京华亘安邦科技有限公司 | The temperature-adjusting circuit of heating chip based on itself thermometric |
| CN107822207A (en) * | 2017-12-05 | 2018-03-23 | 深圳市余看智能科技有限公司 | A kind of subsection heating device for heating the cigarette that do not burn |
| CN109619701A (en) * | 2018-02-12 | 2019-04-16 | 广东天物新材料科技有限公司 | A kind of electronic cigarette and its method for heating and controlling of Segmented heating |
| CN208259013U (en) * | 2018-05-18 | 2018-12-21 | 湖南中烟工业有限责任公司 | A kind of section heating type heater and low temperature smoking set |
| CN108873981A (en) * | 2018-06-25 | 2018-11-23 | 深圳市丽福科技有限责任公司 | The control method and device of electronic cigarette heating temperature |
| CN109445481A (en) * | 2018-10-09 | 2019-03-08 | 深圳思格瑞格科技有限公司 | Heating bar temperature-control circuit |
| CN109907374A (en) * | 2019-03-13 | 2019-06-21 | 深圳市丽福科技有限责任公司 | It is segmented heating type temperature control system and electronic cigarette |
| CN209514375U (en) * | 2019-04-26 | 2019-10-18 | 深圳市海派特光伏科技有限公司 | The control circuit and electronic cigarette of electronic cigarette |
| CN110101122A (en) * | 2019-05-15 | 2019-08-09 | 深圳市新宜康科技股份有限公司 | A kind of multistage temperature control method heating not combustion system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022133999A1 (en) * | 2020-12-25 | 2022-06-30 | 京东方科技集团股份有限公司 | Temperature control system and driving method therefor, and liquid crystal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6483283B2 (en) | Temperature control system, control method therefor, and electronic cigarette provided with temperature control system | |
| CN104950953A (en) | Electronic cigarette and temperature control method thereof | |
| CN109907374B (en) | Segmented heating type temperature control system and electronic cigarette | |
| CN108873976B (en) | Temperature control system of electronic cigarette | |
| CN107095343B (en) | Heating method of electronic smoking set | |
| US20170347707A1 (en) | Electronic cigarette and method for controlling smoke amount of electronic cigarette | |
| CN204560957U (en) | A kind of electronic cigarette | |
| WO2019033886A1 (en) | Dry-burning prevention device of electronic cigarette, and dry-burning prevention control method therefor | |
| CN109907371B (en) | Control method based on self-adaptive temperature circuit in heating non-burning cigarette | |
| WO2019033888A1 (en) | Heating-emitting device of electronic smoking set, and control method therefor | |
| CN105077595B (en) | Electronic cigarette and its control method | |
| CN106339026B (en) | Electronic cigarette heating power stabilization control circuit | |
| CN111990703A (en) | Aerosol generating device and method | |
| CN111436672A (en) | Temperature control device and method for electric heating non-combustible cigarette smoking set | |
| EP4014767A3 (en) | Aerosol generating apparatus, method for controlling aerosol generating apparatus, and program for causing processor to execute the method | |
| CN204969459U (en) | Atomizing silk resistance can automatic control electron cigarette | |
| CN104881063A (en) | Automatic temperature control platinum wire electronic cigarette | |
| CN110025052B (en) | Voltage control method and device of atomizer and electronic cigarette | |
| CN204440200U (en) | A kind of heating control circuit for baking-type smoke generating device | |
| CN113170923A (en) | Electronic cigarette tobacco tar detection method and system | |
| CN213404869U (en) | Dry burning prevention device for electronic cigarette | |
| CN111580582A (en) | Control circuit and control method capable of achieving zone temperature control and electronic cigarette heating device | |
| CN111436670A (en) | Intelligent heating non-combustion electronic cigarette and use method thereof | |
| KR20230124631A (en) | Aerosol generating devices and systems including induction heating devices and methods of operation thereof | |
| CN109393579A (en) | A kind of heated type aerosol temperature control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200825 |