CN208258101U - A kind of electronic heating apparatus - Google Patents

Abstract

The utility model relates to a kind of electronic heating apparatus and heating means, which includes control unit U1, several heating modules and measurement module, and control unit U1, for exporting control signal, driving heating module is worked or closed；Heating module, for being heated to cigarette；Measurement module, for acquiring the voltage and current information of heating module, voltage and current is converted into resistance value information, is transmitted to control unit U1, so that control unit U1 adjusts control signal, voltage and current when driving heating module works is maintained in the range of control unit U1 permission.The utility model passes through setting heating module and measurement module, the data conveyed by control unit according to measurement module, the heating temperature for controlling heating module is target temperature, it realizes and direct baking heating is carried out to common cigarette, uniformly release smog, heating module is around cigarette arranged for interval, so that baking is more abundant, the cigarette gas of cigarette discharges more uniform, energy saving.

Description

A kind of electronic heating apparatus

Technical field

The utility model relates to electronic cigarettes, more specifically refer to a kind of electronic heating apparatus and heating means.

Background technique

With the improvement of people's living standards, gradually recognizing the harm smoked to human body, therefore the electronic cigarette that has been born.? Market has listed a kind of IQOS electronic cigarette smoking set, which needs to buy special cigarette, and the cigarette is only about normal Purpose made cigarette is inserted into IQOS smoking set by a quarter length for seeing cigarette, after starting heating, cigarette is heated to spend 300 more, Purpose made cigarette release smog is taken out for smoker to eat.The electronic smoking set by cigarette heat without burn, will not generate tar and The harmful substances such as carbon monoxide reduce the actual bodily harm to smoker.

IQOS electronic cigarette smoking set can only carry out heated baking to purpose made cigarette, and common cigarette cannot be inserted into IQOS electronics Cigarette smoking set is toasted.The fever tablet of IQOS smoking set is to be inserted into the center of purpose made cigarette, by center heated baking outward, Er Qiete Cigarette processed is strip of sheet, when insertion be it is parallel with fever tablet, when fever tablet making alive, fever tablet generates heat, to whole perfume (or spice) Cigarette is toasted, relatively high close to fever tablet peripheral region temperature, and the regional temperature far from fever tablet can be relatively low, is needed higher Temperature the region cigarette of fever tablet periphery could be toasted.IQOS smoking set sheet fever tablet heats cigarette, exists Heart temperature is high, and the low disadvantage of peripheral temperature, the cigarette parallel with fever tablet strip is by the outside lapse of temperature in center, with fever tablet The cigarette of 90 ° of directions periphery cannot sufficiently toast.

Therefore, it is necessary to design a kind of new electronic cigarette device, realizes and direct baking heating, baking are carried out to common cigarette Smog is uniformly discharged after cigarette and takes out food to smoker, toasts more abundant, more uniform, the energy saving of cigarette release.

Utility model content

The purpose of the utility model is to overcome the defect of the prior art, a kind of electronic heating apparatus and heating side are provided Method.

To achieve the above object, the utility model uses a kind of following technical scheme: electronic heating apparatus, including control list First U1, heating module and measurement module；Described control unit U1, for exporting control signal, driving heating module carries out work Make or closes；The heating module, for being heated to cigarette；The measurement module, for acquiring the voltage of heating module And current information, voltage and current is converted into resistance value information, is transmitted to control unit U1, is controlled so that control unit U1 is adjusted Signal, voltage and current when driving heating unit works are maintained in the range of control unit U1 permission.

Its further technical solution are as follows: the heating module includes four heating units, and four heating units are surround In the periphery of cigarette.

Its further technical solution are as follows: the measurement module includes four measuring units.

Its further technical solution are as follows: the heating unit includes switch element and heating conductor RT, passes through control list First U1 driving switch element conducting or truncation, to drive heating conductor RT to heat or close heating.

Its further technical solution are as follows: the switch element includes metal-oxide-semiconductor Q1.

Its further technical solution are as follows: the heating unit further includes the first biasing resistor R1 and the second biasing resistor R2.

Its further technical solution are as follows: the heating unit further includes sampling resistor R3.

Its further technical solution are as follows: the measuring unit includes current amplifier.

Its further technical solution are as follows: the measuring unit further includes isolation resistance R4.

Its further technical solution are as follows: the model STM32F030CBT6 of described control unit U1.

The beneficial effect of the utility model compared with prior art is: a kind of electronic heating apparatus of the utility model, leads to Cross setting around the spaced apart heating module of cigarette and several be used for detect heating module electric current and voltage survey The heating temperature measured module, the data conveyed by control unit according to measurement module, and then control heating module is target temperature, It realizes and direct baking heating is carried out to common cigarette, uniformly discharge smog after baking cigarette and take out food, heating module ring to smoker Around cigarette arranged for interval, so that baking is more abundant, the cigarette gas of cigarette discharges more uniform, energy saving.

The utility model is further described in the following with reference to the drawings and specific embodiments.

Detailed description of the invention

Fig. 1 is a kind of structural block diagram for electronic heating apparatus that the utility model specific embodiment one provides；

Fig. 2 is a kind of circuit diagram for electronic heating apparatus that the utility model specific embodiment one provides；

Fig. 3 is a kind of flow chart of the heating means for electronic heating apparatus that the utility model specific embodiment one provides；

Fig. 4 is the structural block diagram for another electronic heating apparatus that utility model specific embodiment two provides.

Specific embodiment

In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model Art scheme is further described and illustrates, but not limited to this.

Specific embodiment as shown in figures 1-4, a kind of electronic heating apparatus provided by the utility model, including control are single First U1, heating module and measurement module；Described control unit U1, for exporting control signal, driving heating module carries out work Make or closes；The heating module, for being heated to cigarette；The measurement module, for acquiring the voltage of heating module And current information, voltage and current is converted into resistance value information, is transmitted to control unit U1, is controlled so that control unit U1 is adjusted Signal, voltage and current when driving heating unit works are maintained in the range of control unit U1 permission.

The electronic heating apparatus may be implemented to carry out direct baking heating to common cigarette, uniformly discharge after toasting cigarette Smog is taken out to smoker and is eaten, and more abundant, more uniform, the energy saving of cigarette cigarette gas release is toasted.Implement in the utility model In example, the cigarette is smoking article namely cigarette.

Embodiment one

As shown in Figure 1, present embodiments providing a kind of electronic heating apparatus comprising control unit U1, heating module 1 with And measurement module 2；Wherein, control unit U1 is worked or is closed for exporting control signal, driving heating unit；Heated mould Block 1 is for heating cigarette；Measurement module 2 is used to acquire the voltage and current information of heating unit, by voltage and current Resistance value information is converted to, control unit U1 is transmitted to, so that control unit U1 adjusts control signal, when driving heating module works Voltage and current be maintained at control unit U1 allow in the range of.

Using heating module to cigarette carry out heated baking do not need to burn to cigarette, baking release cigarette taste and Smog is taken out for smoker and is eaten, and the injury of tar and harmful substance to the person is reduced.

Further, in the present embodiment, as shown in Figure 1, above-mentioned heating module 1 include four heating units (11, 12,13,14), four heating units are looped around the periphery of cigarette.Four heating units (11,12,13,14) are identical.

Correspondingly, above-mentioned measurement module 2 includes four measuring units (21,22,23,24), and each measuring unit is respectively only The electric current and voltage of one heating unit of vertical measurement, in order to which control unit U1 individually controls each heating unit, with Ensure that the heating temperature of each heating unit can reach target temperature, allow heat concentrate in cigarettes some region dried It is roasting, sustained release smog.Such as the whole branch of cigarette is toasted simultaneously, smog will discharge completion quickly.Four measuring units (21,22, It 23,24) is also identical.

The number of measuring unit 2 in other embodiments, above-mentioned measurement module 2 may be one, three, five, Six etc..

Further, as shown in Fig. 2, above-mentioned each heating unit includes a switch element and heating conductor RT exports the conducting of control signal driving switch element or truncation by control unit U1, to drive heating conductor RT to start or close Heating is closed, and then realizes that control unit U1 controls the heat driven of heating module 1.In the present embodiment, control unit U1 is logical Overdrive switching elements conductive or truncation to drive heating module to be worked or closed.

The operation that control unit U1 opens or closes each of heating module heating unit, while controlling list First U1 can accordingly acquire the voltage and current information of each heating unit by the measuring unit in measurement module 2, then will be electric Pressure and electric current are converted to resistance value information.Measurement module 2 is by the voltage and current signals of heating conductor RT on each heating unit Within the scope of being converted to control unit U1 and can acquiring.It include positive temperature coefficient in each heating unit of heating module 1 Heating conductor RT give heating conductor RT making alive, electric current flows through heating conductor RT after control unit U1 provides opening signal After be converted to heat, the heat be supplied to baking cigarette, the heating conductor RT solid uniform ring in each heating unit is wrapped Cigarette is wrapped up in, effectively cigarette can orderly uniformly toast, control unit U1 controls each heating unit respectively, makes Heat can concentrate in cigarettes some region toasted, sustained release smog such as toasts the whole branch of cigarette simultaneously, smog will It release can complete quickly.

Further, as shown in Fig. 2, above-mentioned switch element includes metal-oxide-semiconductor Q1, specifically, which is P- Metal-oxide-semiconductor Q1.

Above-mentioned each heating unit further includes the first biasing resistor R1, the second biasing resistor R2 and sampling resistor R3； First biasing resistor R1 and second respective one end biasing resistor R2 are connected to the control foot of switch element metal-oxide-semiconductor Q1 (i.e. Grid, the pole G) and power input foot (i.e. source electrode, the pole S), the other end connection of the first biasing resistor R1 and the second biasing resistor R2 It is connect afterwards with the control port 243 of control unit U1, the output pin (draining, the pole D) of switch element metal-oxide-semiconductor Q1 and a sampling The connection of the one end resistance R3, the other end of sampling resistor R3 are grounded by heating conductor RT.

According to the characteristic of P-MOS pipe, when the voltage Vgs between grid and source electrode is less than certain value, MOS pipe Q1 will Conducting, on the contrary it can end；In Fig. 2, the control port of the first biasing resistor R1 and the second biasing resistor R2 and control unit U1 243 output level, the output level provide the voltage Vgs between grid and source electrode for P-MOS pipe Q1, when the end control unit U1 When mouth 243 exports high level, voltage Vgs is about 0V between the grid and source electrode of P-MOS pipe Q1, is unsatisfactory for metal-oxide-semiconductor Q1 conducting item Part, metal-oxide-semiconductor Q1 keep cut-off；It is electric between the grid and source electrode of metal-oxide-semiconductor Q1 when the port control unit U1 243 exports low level Pressure Vgs is negative value, grid and source voltage Vgs can be made -0.8 by the 243 high low value of output level of the port control unit U1 In~-2.0v range, metal-oxide-semiconductor Q1 is made to enter on state.

Metal-oxide-semiconductor Q1 is provided as electronic switching, the first biasing resistor R1 and the second biasing resistor R2 for MOS pipe Q1 Suitable configuration voltage, providing high level by the control port 243 of control unit U1 makes MOS pipe Q1 be in closing function, leads to The control port 243 for crossing control unit U1, which provides low level, makes metal-oxide-semiconductor Q1 be on effect.

In addition, above-mentioned measuring unit includes a current amplifier.

Sampling resistor R3 is current sampling resistor, and the electric current for flowing through heating conductor RT is equal to the electricity for flowing through sampling resistor R3 Stream, electric current flow through sampling resistor R3, generate voltage at the both ends of sampling resistor R3, since the resistance value of sampling resistor R3 is smaller, Therefore the voltage at the both ends of sampling resistor R3 is also smaller, after current amplifier amplifies several times, is converted to suitable AD and adopts The first acquisition port 241 of the voltage VI of sample, voltage VI controlled unit U1 acquire.Resistance value is required to current sampling resistor R3 Small, precision controlling is 1%.

Voltage in above-mentioned measuring unit on heating conductor RT is adopted after isolation resistance R4 by the second of control unit U1 Collection port 242 obtains another voltage VT after acquiring.

Heating conductor RT has ptc characteristics, and resistance value rises with temperature and increased, and passes through the resistance of heating conductor RT It is worth size, reflects the size of temperature.

Preferably, control unit U1 model STM32F030CBT6, wherein control port 243 has PWM output function, First acquisition port 241 and the second acquisition port 242 have modulus signal to convert (AD) function.

In the present embodiment, control unit U1 provides four that four road pwm control signals are controlled respectively in heating module 1 and heats Unit (11,12,13,14).Control unit U1 provides eight tunnel AD conversion signals, for controlling four in measurement module 2 measurements Unit (21,22,23,24), and each measuring unit corresponds to two-way AD conversion signal.

Assuming that control unit U1 is VI in the voltage that the first acquisition port 241 is read, read in the second acquisition port 242 Voltage be VT, the then resistance value of heating conductor RT are as follows:

R=K*VT/VI, wherein K is that current amplifier electric current converts voltage coefficient.

As shown in figure 4, the four road pwm control signal situations provided for above-mentioned control unit U1 are as follows:

T0~t7 is 11 working time section of heating unit；

T2~t13 is 12 working time section of heating unit；

T8~t19 is 13 working time section of heating unit；

T14~t20 is 14 working time section of heating unit.

It is specific as follows:

First stage, t0~t7 period, heating unit 11 work:

T0~t1 period, time t0 start, and heating unit 11 keeps P-MOS pipe Q1 on state, and heating unit 11 is right Heating conductor RT heating, makes the temperature of heating conductor RT be rapidly achieved T3.

T1~t7 period, interval time period measures heating conductor RT resistance value size, and carries out PID with target temperature T3 Operation obtains the control amount of PWM duty cycle；Then adjustment control port 243 exports the size control P-MOS pipe of PWM duty cycle The on and off of Q1 makes heating conductor RT temperature be maintained at T3；After t7 time point, the P-MOS pipe Q1 of heating unit 11 is protected Hold closed state.

Second stage, t2~t13 period, heating unit 12 work: t2~t3 period opens heating unit 12 P-MOS pipe Q1, making heating conductor RT, temperature rapid increase to T1.

T3~t4 period, it is T1 that the duty ratio for adjusting PWM, which keeps 12 temperature of heating unit,.

T4~t5 period opens the P-MOS pipe of heating unit 12, and making heating conductor RT, temperature rapid increase to T2.

T5~t6 period, it is T2 that the duty ratio for adjusting PWM, which keeps the temperature of heating unit 12,.

T6~t7 period opens the P-MOS pipe Q1 of heating unit 12, makes temperature rapid increase to T3.

T7~t13 period, it is T3 that the duty ratio of adjustment control PWM, which keeps 12 temperature of heating unit, and list is heated after t13 The P-MOS pipe Q1 of member 12 is remained off.

Phase III, t8~t19 period, heating unit 13 work:

T8~t9 period opens the P-MOS pipe of heating unit 13, and making heating conductor RT, temperature rapid increase to T1.

T9~t10 period, it is T1 that the duty ratio for adjusting PWM, which keeps 13 temperature of heating unit,.

T10~t11 period opens the P-MOS pipe Q1 of heating unit 13, makes heating conductor RT temperature rapid increase to arrive T2。

T11~t12 period, it is T2 that the duty ratio for adjusting PWM, which keeps 13 temperature of heating unit,.

T12~t13 period opens the P-MOS pipe Q1 of heating unit 13, makes heating conductor RT temperature rapid increase to arrive T3。

T13~t19 period, it is T3 that the duty ratio of adjustment control PWM, which keeps 13 temperature of heating unit,；T19 time point it Afterwards, the P-MOS pipe Q1 of heating unit 3 is remained off.

Fourth stage, t14~t20 period, heating unit 14 work:

T14~t15 period opens the P-MOS pipe of heating unit 14, makes heating conductor RT temperature rapid increase to arrive T1；

T15~t16 period, it is T1 that the duty ratio for adjusting PWM, which keeps 14 temperature of heating unit,；

T16~t17 period opens the P-MOS pipe Q1 of heating unit 14, makes heating conductor RT temperature rapid increase to arrive T2；

T17~t18 period, it is T2 that the duty ratio for adjusting PWM, which keeps 14 temperature of heating unit,；

T18~t19 period opens the P-MOS pipe Q1 of heating unit 14, makes heating conductor RT temperature rapid increase to arrive T3；

T19~t20 period, it is T3 that the duty ratio of adjustment control PWM, which keeps 14 temperature of heating unit,；It is heated after t20 The P-MOS pipe Q1 of unit 4 is remained off.

T20~t21 period is the natural cooling time, after closing all P-MOS pipe Q1 in four heating modules 1, Residual temperature inside heating conductor RT is also relatively high, needs to wait for allowing next operation again after a period of time temperature is restored to room temperature.

Heating conductor RT has temperature sense characteristic, does not need in addition to add temperature sensor again in electronic heating apparatus, subtract Few temperature sensor mounted space, it is not necessary to consider that the position of temperature sensor installation causes temperature problem of inconsistency.

The heating method of the electronic heating apparatus effectively can carry out abundant stereo-circulation baking, heating temperature control to cigarette System is accurate, and smog is uniformly discharged after baking cigarette to smoker and takes out food, and four heating unit timesharing associations do, and power timesharing increases, Keep baking more abundant, smog release is more uniform, while also energy saving.

Annular package baking is carried out to cigarette, toasts, from bottom to top cigarette is heated, heating unit 11 is to preceding from outside to inside It holds cigarette to carry out high-power baking, discharges the smog of front end cigarette, while heating unit 12 uses lower power to adjacent portions The cigarette divided is preheated, and after the completion of the baking of front end cigarette, is enabled the high-power baking adjacent part cigarette of heating unit 12, is protected The uniform lasting of smog release is demonstrate,proved.4 heating unit collaboration iteration orderly heat whole cigarette, will not make cigarette Once all it is baked completion.

As shown in Figure 1, for a kind of above-mentioned electronic heating apparatus, by being arranged around the spaced apart heating of cigarette Module and several be used for detect heating module electric current and voltage measurement module 2, by control unit according to measurement module The data of conveying, and then the heating temperature for controlling heating module is target temperature, realizes that carrying out direct baking to common cigarette adds Heat toasts and uniformly discharges smog after cigarette and take out food to smoker, and heating module is around cigarette arranged for interval, so that baking is more filled Point, the cigarette gas of cigarette discharges more uniform, energy saving.

Embodiment two

In the present embodiment, it as shown in figure 4, the quantity of the measuring unit in measurement module 2 is one, in other words, surveys Measure unit i.e. measurement module 2.Four heating units (11,12,13,14) measure heater RT by measurement module 2 jointly Mean temperature, and each heating unit (11,12,13,14) is controlled by a temperature value, this temperature value derives from The average temperature value for the heater RT that four heating units (11,12,13,14) are measured jointly.

The heating process of heater, the control process of control unit U1, heating unit design structure and measuring unit Design organization is consistent in embodiment, and details are not described herein.

The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand, But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation, By the protection of the utility model.The protection scope of the utility model is subject to claims.

Claims (10)

1. a kind of electronic heating apparatus, which is characterized in that including control unit U1, heating module and measurement module；The control Unit U1 processed, for exporting control signal, driving heating module is worked or is closed；The heating module, for cigarette It is heated；Voltage and current is converted to resistance value for acquiring the voltage and current information of heating module by the measurement module Information is transmitted to control unit U1, so that control unit U1 adjusts control signal, voltage and electricity when driving heating unit works Stream is maintained in the range of control unit U1 permission.

2. electronic heating apparatus according to claim 1, which is characterized in that the heating module includes that four heating are single Member, four heating units are looped around the periphery of cigarette.

3. electronic heating apparatus according to claim 2, which is characterized in that the measurement module includes that four measurements are single Member.

4. electronic heating apparatus according to claim 2 or 3, which is characterized in that the heating unit includes switch element And heating conductor RT, it is connected or is truncated by control unit U1 driving switch element, to drive heating conductor RT to heat or close Close heating.

5. electronic heating apparatus according to claim 4, which is characterized in that the switch element includes metal-oxide-semiconductor Q1.

6. electronic heating apparatus according to claim 5, which is characterized in that the heating unit further includes the first biased electrical Hinder R1 and the second biasing resistor R2.

7. electronic heating apparatus according to claim 6, which is characterized in that the heating unit further includes sampling resistor R3。

8. electronic heating apparatus according to claim 3, which is characterized in that the measuring unit includes current amplifier.

9. electronic heating apparatus according to claim 8, which is characterized in that the measuring unit further includes isolation resistance R4。

10. electronic heating apparatus according to claim 1, which is characterized in that the model of described control unit U1 STM32F030CBT6。