CN203166473U - Overheating protective device for electronic cigarette or cartridge - Google Patents

Abstract

The utility model relates to an overheating protective device for an electronic cigarette or cartridge, which comprises a battery, an electronic cigarette control circuit module and an atomizer. The battery is used for driving working of the electronic cigarette, the electronic cigarette control circuit module is used for controlling the atomizer, and the atomizer is used for heating tobacco tar in the electronic cigarette to atomize the tobacco tar; the battery, the electronic cigarette control circuit module and the atomizer are electrically connected in order to form a heating circuit; and a temperature fuse is connected in the heating circuit in series, wherein the temperature fuse is used for automatic fusing when the ambient temperature is too high, so that the heating circuit is disconnected, and the battery stops supplying power for the atomizer. According to the utility model, the temperature fuse in connected in the circuit of the electronic cigarette in series to implement overheating protection on the electronic cigarette; when the temperature reaches the fusing temperature of the temperature fuse, the temperature fuse is fused, and further the battery stops supplying power for the atomizer, thereby preventing the atomizer from continuous heating to burn a smoker, and improving safety of the electronic cigarette.

Description

The overtemperature protection system of electronics cigarette or cigarette bullet

Technical field

The utility model relates to the electronic cigarette field, more particularly, relates to the overtemperature protection system of electronics cigarette or cigarette bullet.

Background technology

In existing electronic cigarette product, especially disposable electronic cigarette and disposable cigarette bullet are all less than it is carried out overtemperature protection.Electronic cigarette comprises that battery, electronics cigarette control circuit module and atomizer form heating circuit, in case electronic cigarette breaks down (as microcontroller deadlock, electronic circuit short circuit etc.), may occurring always, the heating atomization device burns out until running down of battery or product, this moment, electronics cigarette internal temperature can be very high, cause easily and scald or burn, even cause fire.

The utility model content

The purpose of this utility model is, it is too high and the scald or the burning accident that cause provide the overtemperature protection system of a kind of electronics cigarette or cigarette bullet to address the aforementioned drawbacks to occur internal temperature that barrier for some reason causes easily at existing electronics smoke product.

The technical scheme that its technical problem that solves the utility model adopts provides a kind of electronics cigarette overtemperature protection system, comprising: for the battery that drives the work of electronics cigarette, for the electronics cigarette control circuit module of control atomizer, for adding the atomizer that the interior tobacco tar of hot electron cigarette makes the tobacco tar atomizing; Battery, electronics cigarette control circuit module and atomizer are electrically connected successively to form and add thermoelectric loop, adding thermoelectric loop series connection one Thermal Cutoffs, Thermal Cutoffs fuses when being used for the induced environment temperature overheating automatically, cuts off the described thermoelectric loop that adds, and battery stops atomizer being powered.

Electronics cigarette overtemperature protection system of the present utility model, Thermal Cutoffs are connected between the positive power source terminal of the positive terminal of battery and control circuit module.。

Electronics cigarette overtemperature protection system of the present utility model, Thermal Cutoffs are connected between the negative power end of the negative pole end of battery and control circuit module.

Electronics cigarette overtemperature protection system of the present utility model, Thermal Cutoffs are porcelain tube type Thermal Cutoffs or square shell mould Thermal Cutoffs.

Electronics cigarette overtemperature protection system of the present utility model, Thermal Cutoffs selection fusing-off temperature are any Thermal Cutoffs between 50 ℃ to 200 ℃.

The utility model also provides a kind of cigarette bullet overtemperature protection system, comprising:

For the atomizer interface that is connected with the control circuit of electronics cigarette;

Be used for adding the atomizer that the tobacco tar in the hot electron cigarette atomizes tobacco tar;

Be used for when atomizer is overheated, stopping atomizer being continued the Thermal Cutoffs of heating;

First end of atomizer interface is connected to first end of atomizer by Thermal Cutoffs, and second end of atomizer interface is connected with second end of atomizer.

Cigarette bullet overtemperature protection system of the present utility model, Thermal Cutoffs selection fusing-off temperature are any Thermal Cutoffs between 50 ℃ to 200 ℃.

Cigarette bullet overtemperature protection system of the present utility model, Thermal Cutoffs are porcelain tube type Thermal Cutoffs or square shell mould Thermal Cutoffs.

Implement the overtemperature protection system of electronics cigarette of the present utility model or cigarette bullet; because Thermal Cutoffs is connected in the thermoelectric loop of adding of electronics cigarette; the electronics cigarette is carried out overtemperature protection; when temperature arrives the fusing-off temperature of Thermal Cutoffs; Thermal Cutoffs fusing; and then cut off the power supply of battery to atomizer, and prevented the lasting heating of atomizer and the smoker's that causes scald or burn, thus the fail safe that has improved the electronics cigarette.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described, wherein:

Fig. 1 is the functional block diagram of the utility model electronics cigarette overtemperature protection system;

Fig. 2 is the circuit connection diagram of electronics cigarette overtemperature protection system first embodiment;

Fig. 3 is the circuit connection diagram of electronics cigarette overtemperature protection system second embodiment;

Fig. 4 is the electrical block diagram of electronics cigarette control circuit module;

Fig. 5 is the circuit connection diagram of cigarette bullet overtemperature protection system.

Embodiment

Fig. 1 is the functional block diagram of the utility model electronics cigarette overtemperature protection system, specifically comprises:battery 100 is used for driving interior each assembly of electronics cigarette and guarantees electronics cigarette operate as normal;Thermal Cutoffs 200 is used for fusing automatically in too high detecting temperature, makes the power supply circuits of electronics cigarette inside disconnect; Electronics cigarettecontrol circuit module 300 is for theatomizer 400 of control electronics cigarette inside; The tobacco tar thatatomizer 400 is used for adding in the hot electron cigarette makes the tobacco tar atomizing.In a preferred connected mode,Thermal Cutoffs 200 is connected on and adds in the thermoelectric loop; be about toThermal Cutoffs 200 be connectedbattery 100 andcontrol circuit module 300 between, makebattery 100,Thermal Cutoffs 200, electronics cigarettecontrol circuit module 300,atomizer 400 electrically connect the formation overheating protection circuit successively.Thermal Cutoffs 200 can certainly be arranged near atomizer, Thermal Cutoffs is connected on the position that adds in the thermoelectric loop and does not limit, as long as assurance can be cut off the electricity supply when overheated.

In operate as normal,battery 100 outside output currents through behind theThermal Cutoffs 200, are powered toatomizer 400 according to the parameter of setting by electronics cigarettecontrol circuit module 300, and atomizer converts electrical energy into heat energy, and the tobacco tar in the electronics cigarette is atomized.When the circuit of electronics cigarette goes wrong, such situation may occur:atomizer 400 is continuous firing always, exhausts or product burns out untilbattery 100, and this moment, electronics cigarette internal temperature can be very high, cause easily and scald or burn, even cause fire; This moment is owing to insertedThermal Cutoffs 200 in the utility model, can avoid above-mentioned situation, in the utility model,Thermal Cutoffs 200 mainly is made up of low-temperature alloy, is surpassing certain temperature, for example 50 ℃ the time, this alloy fusing, thereby, cut offbattery 100 to the power supply ofatomizer 400, avoided the lasting heating of atomizer 400.In the utility model the concrete fusing-off temperature ofThermal Cutoffs 200 can according toThermal Cutoffs 200 specifically the desired location in the electronics cigarette carry out corresponding selection, for example whenThermal Cutoffs 200 is far away apart fromatomizer 400, can select for use low fusing temperature as 50 ℃Thermal Cutoffs 200; WhenThermal Cutoffs 200 is nearer apart fromatomizer 400, can select for use higher fusing-off temperature as 200 ℃ Thermal Cutoffs 200.The concrete shape ofThermal Cutoffs 200 also can be selected according to actual electronics cigarette volume inside demand, and for example Thermal Cutoffs is selected porcelain tube type Thermal Cutoffs or square shell mould Thermal Cutoffs for use.As long as guarantee that its inner low-temperature alloy can normally fuse.Be any Thermal Cutoffs between 50 ℃ to 200 ℃ selecting fusing-off temperature on the fusing-off temperature, the H0 Thermal Cutoffs of Xiamen Sai Erte for example, its fusing-off temperature is 73 ± 2 ℃.

Fig. 2,3 is the circuit connecting mode of two embodiment of the utility model electronics cigarette overtemperature protection system.The both positive and negative polarity ofbattery 100 is connected on positive power source terminal and the negative power end of electronics cigarettecontrol circuit module 300 respectively, and furtherThermal Cutoffs 200 is serially connected between the positive power source terminal ofbattery 100 positive poles and electronics cigarettecontrol circuit module 300; PerhapsThermal Cutoffs 200 is serially connected between the negative power end ofbattery 100 negative poles and electronics cigarette control circuit module 300.And terminating on the control output end of electronics cigarettecontrol circuit module 300 ofatomizer 400, the other end ofatomizer 400 is connected on the negative pole ofbattery 100.

Battery 100,Thermal Cutoffs 200, electronics cigarettecontrol circuit module 300,atomizer 400 are formed a major loop, whenThermal Cutoffs 200 detects the temperature arrival fusing-off temperature ofatomizer 400, low-temperature alloy fusing in theThermal Cutoffs 200, cause major loop to disconnect,battery 100 will no longer provide electric energy toatomizer 400, has so just stoped the lasting heating ofatomizer 400.

General, electronics cigarettecontrol circuit module 300 comprises 3 terminals at least, is respectively positive power source terminal, negative power end and control output end; Electronics cigarettecontrol circuit module 300 just, negative power end is connected with the both positive and negative polarity of battery respectively, to obtain enough electric energy frombattery 100; The control output end is used for other electricity consumption devices to the electronics cigarette, and forexample atomizer 400 grades provide suitable current, so that the operate as normal of electricity consumption device.Be illustrated in figure 4 as the physical circuit connection layout of optional electronics cigarettecontrol circuit module 300 first.In this electronics cigarettecontrol circuit module 300, be provided with input module, comprise smoking transducer and button, be used for sending to microprocessor the signal of startup or break-off; Microprocessor is according to the startup or the halt signal that receive, and conducting or by field effect transistor (metal-oxide-semiconductor) flows to the electric current ofatomizer 400 with control; Also comprise a comparator in the electronics cigarettecontrol circuit module 300, the effect of this comparator is the overcurrent protection for heating element; Comparator flows through the voltage that produces in field effect transistor (metal-oxide-semiconductor) internal resistance by comparison reference voltage and electric current and compares, to determine whether overcurrent ofatomizer 400, usually comparator can be exported a comparative result to microcontroller under overcurrent condition, can turn-off metal-oxide-semiconductor by microcontroller, thereby cut off the electric current toatomizer 400; If under overcurrent condition; comparator, microcontroller or metal-oxide-semiconductor break down and cause can not in time cutting off under the overcurrent condition electric current ofatomizer 400;atomizer 400 still can continue to heat and causes the temperature of electronics cigarette further to rise so;Thermal Cutoffs 200 fusing this moment; cut offbattery 100 voltages; thereby protected the electronics cigarette, guaranteed smoker's safety.

The utility model can also be protected the cigarette bullet of electronics cigarette, and the overtemperature protection system of this cigarette bullet comprises: be used for the atomizer interface with the control circuit of electronics cigarette; Be used for adding theatomizer 400 that the tobacco tar in the hot electron cigarette atomizes tobacco tar; Be used for whenatomizer 400 is overheated, stopping theThermal Cutoffs 200 thatatomizer 400 continues heating; First end of atomizer interface is connected to atomizer first end byThermal Cutoffs 200, and second end of atomizer interface is connected with second end of atomizer.

The electric current of electronics cigarette flows into the cigarette bullet from the atomizer interface, andatomizer 400 is converted into heat with electric current, and the tobacco tar in the cigarette bullet is atomized.As if the current anomaly that the electronics cigarette occurs, causeatomizer 400 to continue heating, the high temperature ofatomizer 400 generations this moment can fuseThermal Cutoffs 200, thus protection cigarette bullet and electronics cigarette.The concrete fusing-off temperature ofThermal Cutoffs 200 can be any Thermal Cutoffs between 50 ℃ to 200 ℃ according to concrete cigarette bullet type selecting fusing-off temperature, and the concrete shape of Thermal Cutoffs also can need be selected according to the profile of cigarette bullet.

It below only is the utility model embodiment, can not limit scope of the present utility model with this, the equalization that those skilled in the art in the art do according to this creation changes, and the change known of those skilled in that art, all should still belong to the scope that the utility model is contained.

Claims (8)

1. electronics cigarette overtemperature protection system; comprise for the battery (100) that drives the work of electronics cigarette; the electronics cigarette control circuit module (300) that is used for control atomizer (400) heating break-make; with the described atomizer (400) that tobacco tar is atomized for the tobacco tar that adds in the hot electron cigarette; described battery (100); electronics cigarette control circuit module (300) and atomizer (400) are electrically connected successively to form and add thermoelectric loop; it is characterized in that; at described thermoelectric loop series connection one Thermal Cutoffs (200) that adds; described Thermal Cutoffs (200) fuses when being used for the induced environment temperature overheating automatically; cut off the described thermoelectric loop that adds, described battery (100) stops described atomizer (400) is powered.

2. electronics cigarette overtemperature protection system according to claim 1 is characterized in that, described Thermal Cutoffs (200) is connected between the positive power source terminal of the positive terminal of described battery (100) and described control circuit module (300).

3. electronics cigarette overtemperature protection system according to claim 1 is characterized in that, described Thermal Cutoffs (200) is connected between the negative power end of the negative pole end of described battery (100) and described control circuit module (300).

4. according to the arbitrary described electronics cigarette overtemperature protection system of claim 1-3, it is characterized in that described Thermal Cutoffs (200) is porcelain tube type Thermal Cutoffs or square shell mould Thermal Cutoffs.

5. electronics cigarette overtemperature protection system according to claim 4 is characterized in that, described Thermal Cutoffs (200) selection fusing-off temperature is any Thermal Cutoffs between 50 ℃ to 200 ℃.

6. a cigarette bullet overtemperature protection system is characterized in that, comprising:

For the atomizer interface that is connected with the control circuit of electronics cigarette;

Be used for adding the atomizer (400) that the tobacco tar in the hot electron cigarette atomizes tobacco tar;

Be used for when described atomizer (400) is overheated, stopping described atomizer (400) is continued the Thermal Cutoffs (200) of heating;

First end of atomizer interface is connected to first end of described atomizer (400) by described Thermal Cutoffs (200), and second end of described atomizer interface is connected with second end of described atomizer (400).

7. cigarette bullet overtemperature protection system according to claim 6 is characterized in that, described Thermal Cutoffs is porcelain tube type Thermal Cutoffs or square shell mould Thermal Cutoffs.

8. electronics cigarette overtemperature protection system according to claim 7 is characterized in that, described Thermal Cutoffs (200) selection fusing-off temperature is any Thermal Cutoffs between 50 ℃ to 200 ℃.

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