CN108451047A - A kind of electronic smoking set that circumferential heating is sectional temperature-controlled - Google Patents

Abstract

The invention discloses an electronic cigarette set with circumferential heating and segmental temperature control, which comprises: a heating cup (4), a heating circuit is printed on the outer wall of the heating cup (4), and the heating cup (4) passes temperature measurement The element (5) is electrically connected with a temperature sensor (7), the temperature sensor (7) is arranged on the controller (8), and the heating cup (4) is a quartz glass heating cup. The smoking set of the invention is simple in structure, easy to operate, effectively solves the problems of uneven circumferential heating of the smoking set, complex manufacturing process of ceramic cups, and inconvenient cleaning, and also solves the problems of inaccurate temperature control and overheating in traditional time-based heating.

Description

An electronic cigarette set with circumferential heating and segmental temperature control

technical field

The invention belongs to the technical field of electronic smoking sets, in particular to an electronic smoking set with circumferential heating and temperature control in sections.

Background technique

Low-temperature cigarettes deliver nicotine and flavors to the human body by heating non-burning tobacco, and are filled with tobacco substances. Low-temperature cigarette products have changed the way traditional cigarettes burn with visible smoke, adopting the "heat-not-burn" method. Relevant studies have shown that at a lower temperature below 500°C, only heating but not burning tobacco, nicotine and some tobacco flavor components can be transferred to the smoke. Compared with traditional cigarettes, low-temperature cigarettes can significantly reduce the release of tar and harmful components as a whole. At the same time, there is basically no sidestream smoke, and the harm to others and the environment is very small.

At present, the low-temperature cigarettes that have been marketed or are being developed in the world mainly include: electric heating low-temperature cigarettes, fuel-heating low-temperature cigarettes and chemical heating low-temperature cigarettes. Electrically heated low-temperature cigarettes use electricity as a heat source to heat tobacco substances to produce nicotine smoke. Fuel heating low-temperature cigarettes, that is, heating tobacco substances with an external fuel block as a heat source to generate nicotine smoke. Chemically heating low-temperature cigarettes, that is, using a chemical reactor as a heat source for heating. At present, heat-not-burn cigarette appliances can heat cigarettes by means of circumferential heating, or use a central heating element to insert cigarettes to achieve the purpose of heating. However, the central heating element on the market now has the problem of slow baking rate, uneven heating, and when the cigarette is inserted into the heating element, the central heating element shakes and is not firm, which affects the user's smoking experience; while the new type of cigarette with circumferential heating is heated The component can heat the surrounding of the cigarette, and the heating body transfers heat from the periphery of the cigarette to the inside of the cigarette, which can achieve the purpose of uniform heating of the circumference of the cigarette and fast heating effect, avoiding the possibility of curling the shredded tobacco in the central heating method. Bending makes it impossible to evenly heat the shredded tobacco, which affects the taste of smoking. The design method of the circumferentially heated smoking set is to design the heating element in the form of a cup body, which reduces the problem of shaking and looseness of the heating element when the cigarette is inserted. To a certain extent, the deformation of the heating element can be reduced, and the service life of the smoking appliance can be improved. However, at present, the heating plate for circumferential heating adopts a ceramic heating substrate, which has the problems of large volume, low heating efficiency, complicated manufacturing process, and inconvenient cleaning.

In addition, the existing smoking appliance heating control system heats the cigarettes in time intervals to avoid excessive temperature, regardless of the actual flue-cured tobacco temperature and system lag, resulting in an unpleasant smoking experience, but only uses time for program control and adjustment , and cannot achieve a good temperature control effect, there are problems such as inaccurate temperature control and excessive heating temperature.

Contents of the invention

The purpose of the present invention is to provide an electronic smoking set with circumferential heating and temperature control in sections, which effectively solves the problems of uneven heating in the circumferential direction of the electronic smoking set and inaccurate heating and temperature control of the smoking set in different time periods.

The purpose of the present invention is achieved through the following technical solutions:

An electronic smoking appliance with circumferential heating and segmental temperature control, which includes:

Heating cup 4, a heating circuit is printed on the outer wall of the heating cup 4, the heating cup 4 is electrically connected to a temperature sensor 7 through a temperature measuring element 5, the temperature sensor 7 is arranged on a controller 8, and the heating cup 4 is a quartz glass heating cup.

The above-mentioned electronic smoking appliance with circumferential heating and temperature control in sections also includes a battery cell 2, a charging port 9, a slide switch 3 and an atomizer 6, the slide switch 3 is arranged on the casing 1, and the atomizer The converter 6 is electrically connected to the controller 8.

In the aforementioned electronic smoking appliance with circumferential heating and temperature control in sections, the temperature sensor 7 is a PTC thermistor.

In the above-mentioned electronic cigarette set with circumferential heating and temperature control in sections, a heat-conducting insulating layer is provided on the cavity wall where the heating cup 4 is in contact with the cigarette. The setting of the heat-conducting insulating layer can isolate the direct contact between the cigarette and the heater, preventing the cigarette from Contaminates the heater while evaporating.

A method for operating an electronic cigarette set with circumferential heating and temperature control in sections, comprising the following steps:

a. Open the slide cover switch 3, and insert a non-burning cigarette into the heating cup 4;

b. Artificially set the threshold of heating temperature;

c. Turn on the switch of the controller 8 to heat the cigarette, and the temperature measuring element 5 transmits the actual heating temperature of the heating cup 4 to the controller 8 through the temperature sensor 7;

d. The controller 8 makes a difference of δ between the threshold value of the heating temperature set in step b and the actual heating temperature of the heating cup 4 measured in step c;

e, compare the δ obtained in step d with 0, calculate the corresponding PID parameters, output PWM waveforms with different duty ratios, generate electric power applied to the heating element, heat the heating cup 4, and finally make the heating cup 4 Reach the threshold of the set heating temperature and maintain a constant temperature state.

In a preferred embodiment of the present invention, the control system in the present invention includes the controller 8, a human-computer interaction unit and a sensor unit, wherein the human-computer interaction unit includes an LED display and a vibration prompter; the sensor The unit includes a voltage detection unit, a charging unit, a switch, a negative pressure sensor, a buck-boost unit, a chopper unit, a temperature detection unit and an output control unit.

In a preferred embodiment of the present invention, the display unit in the controller of the present invention adopts a touch liquid crystal display.

In a preferred embodiment of the present invention, the power source is a battery, the battery is electrically connected to the battery power detection unit, and the battery power detection unit is electrically connected to the controller 8 through an SPI interface.

The key point of the present invention is to combine the heating circuit with the glass substrate to produce a glass with a printed heating circuit, and to heat the cigarettes in the circumferential direction, so that the cigarettes are heated more evenly; on the other hand, the present invention heats the smoking utensils The control system has improved the way of heating cigarettes in different time periods to artificially set the heating temperature, and the control system has intelligently adjusted the heating method, which effectively solves the problems of time-based heating system lag, inaccurate temperature control, and overheating.

Beneficial effects of the present invention:

1. In the present invention, a glass cup with a printed heating circuit is obtained by combining a heating circuit with a glass base, layering and segmenting, and heating the cigarettes in the circumferential direction, so that the circumferential heating of the cigarettes is more uniform.

2. The present invention improves the heating control system of smoking utensils to heat cigarettes in time intervals to artificially set the heating temperature and intelligently adjust the heating mode of the control system, which effectively solves the problem of lagging heating system in time intervals, inaccurate temperature control, The problem of overheating.

3. The smoking set of the present invention has a simple structure and is easy to operate, effectively solving the problems of uneven circumferential heating of the smoking set, complex ceramic cup manufacturing process, and inconvenient cleaning, and at the same time solving the problems of inaccurate temperature control and overheating in traditional time-based heating.

Description of drawings

Fig. 1 is the structural representation of device of the present invention;

Fig. 2 is the system block diagram of control system in the device of the present invention;

Fig. 3 is the flow chart of control system program control in the device of the present invention;

In the figure: 1-shell, 2-battery core, 3-slide switch, 4-heating cup, 5-temperature measuring element, 6-atomizer, 7-temperature sensor, 8-controller, 9-charging port.

Detailed ways

The following examples are intended to illustrate the content of the present invention, rather than to further limit the protection scope of the present invention.

Example

An electronic smoking appliance with circumferential heating and segmental temperature control, which includes:

Heating cup 4, a heating circuit is printed on the outer wall of the heating cup 4, the heating cup 4 is electrically connected to a temperature sensor 7 through a temperature measuring element 5, the temperature sensor 7 is arranged on a controller 8, and the heating cup 4 is a quartz glass heating cup.

The above-mentioned electronic smoking appliance with circumferential heating and temperature control in sections also includes a battery cell 2, a charging port 9, a slide switch 3 and an atomizer 6, the slide switch 3 is arranged on the casing 1, and the atomizer The converter 6 is electrically connected to the controller 8.

In the aforementioned electronic smoking appliance with circumferential heating and temperature control in sections, the temperature sensor 7 is a PTC thermistor.

In the above-mentioned electronic cigarette set with circumferential heating and temperature control in sections, a heat-conducting insulating layer is provided on the cavity wall where the heating cup 4 is in contact with the cigarette. The setting of the heat-conducting insulating layer can isolate the direct contact between the cigarette and the heater, preventing the cigarette from Contaminates the heater while evaporating.

A method for operating an electronic cigarette set with circumferential heating and temperature control in sections, comprising the following steps:

a. Open the slide cover switch 3, and insert a non-burning cigarette into the heating cup 4;

b. Artificially set the threshold of heating temperature;

c. Turn on the switch of the controller 8 to heat the cigarette, and the temperature measuring element 5 transmits the actual heating temperature of the heating cup 4 to the controller 8 through the temperature sensor 7;

d. The controller 8 makes a difference of δ between the threshold value of the heating temperature set in step b and the actual heating temperature of the heating cup 4 measured in step c;

e, compare the δ obtained in step d with 0, calculate the corresponding PID parameters, output PWM waveforms with different duty ratios, generate electric power applied to the heating element, heat the heating cup 4, and finally make the heating cup 4 Reach the threshold of the set heating temperature and maintain a constant temperature state.

Claims (4)

1. An electronic cigarette set with circumferential heating and segmental temperature control, characterized in that it comprises: A heating cup (4), a heating circuit is printed on the inner wall of the heating cup (4), the heating cup (4) is electrically connected to a temperature sensor (7) through a temperature measuring element (5), and the temperature sensor (7) ) is arranged on the controller (8), and the heating cup (4) is a quartz glass heating cup. 2. The electronic smoking appliance with circumferential heating and segmental temperature control according to claim 1, characterized in that it also includes a battery cell (2), a charging port (9), a slide switch (3) and an atomizer (6 ), the slide switch (3) is arranged on the housing (1), and the atomizer (6) is electrically connected to the controller (8). 3. The electronic smoking appliance with circumferential heating and segmental temperature control according to claim 1, characterized in that the temperature sensor (7) is a PTC thermistor. 4. The electronic smoking appliance with circumferential heating and segmental temperature control according to claim 1, characterized in that a thermally conductive insulating layer is arranged on the cavity wall of the heating cup (4) in contact with the cigarette.