CN216481095U

CN216481095U - Electronic cigarette lighting circuit

Info

Publication number: CN216481095U
Application number: CN202123242677.0U
Authority: CN
Inventors: 王丹
Original assignee: Chengdu Sancheng Technology Service Co ltd
Current assignee: Chengdu Sancheng Technology Service Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-10
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses an electron point cigarette circuit, its characterized in that mainly comprises the resistance wire RT that is used for generating heat, the control system who is connected with resistance wire RT, the switch circuit who is connected with this control system and the supply circuit who is connected with control system. The utility model discloses be when using through control chip U1's current amplification function make resistance wire RT generate heat, and then carry out the point cigarette with the electrical group silk RT that generates heat, consequently can not only thorough avoid the appearance of naked light, but also can avoid traditional gas lighter to produce the potential safety hazard that the explosion brought under high temperature or collision.

Description

Electronic cigarette lighting circuit

Technical Field

The utility model belongs to the electronic product field specifically indicates an electron point cigarette circuit.

Background

Lighters are one of the most commonly used ignition devices for igniting cigarettes, and are classified into gas lighters and fuel lighters. The gas lighter is a product which is widely used at present, butane is used as fuel, and is in a gas state at normal temperature and normal pressure, and the butane in the gas lighter is in a liquid state only after pressurization or temperature reduction, so the butane in the gas lighter is in a liquid state after pressurization.

Because the pressure exists in the gas lighter all the time, the gas lighter explodes in a high-temperature environment or when being violently bumped, which not only can hurt users, but also can cause a series of safety problems due to the explosion. For example, when the gas lighter is placed on an automobile, safety accidents such as spontaneous combustion of the automobile and the like are easily caused under high-temperature weather; meanwhile, the gas lighters all generate open fire, and when the gas lighters are improperly used, fire disasters are easily caused.

Therefore, how to put an end to open fire and avoid potential safety hazards brought by gas lighters when people light cigarettes is a technical problem which needs to be solved by people at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned problem, provide a point cigarette circuit to very big improvement the intelligence and the functionality of circuit, improved the integrated effect and the result of use of circuit, simultaneously still fine improvement the security that the circuit used.

The purpose of the utility model is realized through the following technical scheme: an electronic cigarette lighting circuit mainly comprises a resistance wire RT for heating, a control system connected with the resistance wire RT, a switch circuit connected with the control system and a power supply circuit connected with the control system and the switch system.

The control system is composed of a control chip U1; one end of the resistance wire RT is connected with a current output pin of the control chip U1, and the other end of the resistance wire RT is grounded; the output end of the power supply circuit is connected with a voltage input pin of the control chip U1 and a voltage input end of the switch circuit, and the input end of the power supply circuit is grounded; the output end of the switch circuit is connected with a signal control pin of the control chip U1, and the output end of the switch circuit is grounded.

Furthermore, the switch circuit is composed of a press switch K, one end of the press switch K is connected with a signal control pin of the control chip U1, and the other end of the press switch K is grounded; or one end of the voltage switch K is connected with the signal control pin of the control chip U1, and the other end of the voltage switch K is connected with the output end of the power supply circuit.

As another mode, the switch circuit is composed of a control chip U2, a push switch S1 and a touch switch S2; the power supply input pin of the control chip U2 is connected with the voltage output end of the power supply circuit, and the signal control output end of the control chip U2 is connected with the control chip U1; one end of the push switch S1 is grounded, and the other end is connected with a grounding pin of the control chip U2; the touch switch S2 is connected to the touch sensing pin of the control chip U2.

In order to display the working state of the circuit conveniently, a heating indicator lamp circuit for displaying the working state of the resistance wire RT is arranged on the control chip U1, and a switch indicator lamp circuit for displaying the working state of the switch circuit is arranged on the control chip U2.

Preferably, the control chip U1 is implemented by using S091D chip, and the control chip U2 is implemented by using JL223B chip.

The circuit of the heating indicator lamp consists of a light emitting diode D1; the switch indicator light circuit consists of a light emitting diode D2 and a resistor R2, wherein one end of the resistor R2 is connected with the output end of the power supply circuit, and the other end of the resistor R2 is connected with the ground pin of the control chip U2.

In order to ensure the charging and discharging of the power supply circuit, the power supply circuit is preferably realized by a lithium ion rechargeable battery. Also, non-rechargeable disposable batteries may be used instead.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model discloses be when using through control chip U1's current amplification function make resistance wire RT generate heat, and then carry out the point cigarette with the electrical group silk RT that generates heat, consequently the utility model discloses the appearance of avoiding naked light that can not only be thorough, but also can avoid traditional gas lighter can produce the potential safety hazard that the explosion brought under high temperature or collision.

(2) The utility model discloses a mechanical type press switch or touch switch come control to heat cigarette, and it is very convenient to use, can not only reduce the consumption to the electric quantity, has improved the duration of a journey ability of battery greatly, but also pleasing to the eye practicality.

Drawings

Fig. 1 is a whole circuit structure diagram of the switch circuit of the present invention when the switch is a push switch.

Fig. 2 is a whole circuit structure diagram of the switch circuit of the present invention when it is a touch switch.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Example 1

As shown in fig. 1, the resistance wire RT of the present invention generates heat under the control of the control system, thereby being used for lighting cigarettes. The switch circuit is connected with the control system and used for providing a switch signal for the control chip so as to enable the circuit in the control chip to conduct, cut off, carry out current transformation operation and the like. The power supply circuit is connected with the control system and the switch circuit and provides working voltage and current for all the circuits.

The control system is realized by an integrated control chip U1 which converts small current into large current, namely, the control chip U1 converts the small current provided by the power supply circuit into the large current and outputs the large current to the electric wire RT under the control of the switch circuit, so that the electric wire RT converts electric energy into heat energy and generates heat to achieve the purpose of igniting the cigarette.

For better explanation, the control chip U1 in this embodiment is implemented by a chip of the S091D type, but the control chip U1 may also be implemented by another chip having the same function, for example, by a chip of the JL091D type. Since there are some differences in design and layout between different chips, the layout and functional configuration of the pins will be slightly different, but the specific use and implementation of the present embodiment will not be affected.

As shown in fig. 1, the resistance wire RT needs to form an electrical loop with the control chip U1, that is, one end of the resistance wire RT needs to be connected with pin 5 of the chip S091D, and the other end is grounded. The function of the No. 5 pin of the chip S091D is to convert the small current provided by the power supply circuit into large current and output the large current to the resistance wire RT.

The power supply circuit is realized by a lithium ion rechargeable battery BT1, and the positive electrode of the lithium ion rechargeable battery BT1 is connected with the voltage input pin of the U1 of the control chip, namely, the No. 4 pin of the S091D chip. The pin 1 of the control chip U1 is used to connect an external independent charging power VCC, that is, when the pin 1 of the chip S091D is connected to the external power VCC (the external power is 5V), the chip S091D will reversely charge the lithium ion rechargeable battery BT 1; when the pin 1 of the chip S091D is disconnected from the external power source VCC, the charging of the lithium ion rechargeable battery BT1 is terminated, and the working current and voltage are supplied to all circuits in the forward direction.

In order to display the working state of the resistance wire RT, a heating indicator lamp circuit is also connected to the pin No. 3 of the chip S091D, and the heating indicator lamp circuit is directly composed of a light emitting diode D1, namely, the P pole of the light emitting diode D1 is connected with the pin No. 3 of the chip S091D, and the N pole of the light emitting diode D1 is grounded, so that the light emitting diode D1 forms a complete electric loop.

When the pin 6 of the chip S091D receives the conduction control signal output by the switch circuit, the chip S091D converts the small current input from the pin 4 of the lithium ion rechargeable battery BT1 into a large current and outputs the large current to the resistance wire RT, and at the same time, the chip S091D also conducts the light emitting diode D1 inside, so that the light emitting diode D1 is lit to display that the resistance wire RT is in the working state. On the contrary, when the pin 6 of the chip S091D receives the off control signal output by the switch circuit, the chip S091D cuts off the power supply to the resistance wire RT and the light emitting diode D1, so that the resistance wire RT is cut off and the light emitting diode D1 is turned off.

The chip S091D receives the on/off control signal from its pin 6 as an executable final control signal, that is, the chip S091D processes the executable final control signal from its pin 6, and the final control signal may be a high level, a low level or a comprehensive signal processed by logic operation, so long as the signal received from the pin 6 of the chip S091D conforms to its internal setting principle, and can convert the small current output by the lithium ion rechargeable battery BT1 into the large current to supply the resistance wire RT for conversion.

The switch circuit is a circuit for transmitting an on control signal or an off control signal to the S091D chip, and the switch circuit may be directly implemented by a simple mechanical switch or may be implemented by a touch switch or the like according to different requirements.

Fig. 1 shows an embodiment in which a conventional mechanical switch is directly connected in series to the pin 6 of the chip S091D to provide the on and off control signals for the chip, in this embodiment, the mechanical switch only needs to be grounded, that is, the on and off of the switch K is pressed to obtain the on control signal or the off control signal of the pin 6 of the chip S091D, so as to achieve the purpose of controlling the heating of the resistance wire RT.

Or, as another embodiment, one end of the push switch K is connected to pin 6 of the chip S091D, and the other end is connected to the output end of the lithium ion rechargeable battery BT1, so that when the push switch K is turned on, a voltage signal is input to pin 6 of the chip S091D, and the purpose of heating the resistance wire RT is achieved. On the contrary, when the push switch K is switched off, the heating of the resistance wire RT is further interrupted.

Example 2

The present embodiment is different from embodiment 1 only in that the switch circuit in this embodiment employs a touch switch to supply on and off control signals to the control chip U1(S091D chip).

As shown in fig. 2, the touch switch is composed of a control chip U2, a push switch S1 and a touch switch S2. The control chip U2 is implemented by the JL223B chip, but the control chip U2 may be replaced by another chip having the same function as the JL223B chip. For ease of description and understanding, the following description is directed to JL223B chips.

In the circuit connection, pin 1 of the JL223B chip, i.e., the signal output pin of the control chip U2, is connected to pin 6 of the S091D chip, and

pins

4, 5, and 6 of the JL223B chip are connected to the positive electrode of the lithium-ion rechargeable battery BT 1. Meanwhile, the positive electrode of the lithium ion rechargeable battery BT1 is connected with the signal control pin of the control chip U1 through the resistor R1, that is, connected with the pin No. 6 of the chip S091D.

The function of push switch S1 is to put JL223B chip into standby operation, and one end of push switch S1 is connected to gnd pin of JL223B chip, and the other end is grounded, so that push switch S1 forms an electrical circuit. Meanwhile, in order to facilitate displaying the working state of the touch switch, a switch indicator light circuit may be further provided in this embodiment. The circuit of the switch indicator lamp consists of a light emitting diode D2 and a resistor R2, when the circuit is connected, one end of the resistor R2 is connected with the positive electrode of the lithium ion rechargeable battery BT1, and the other end of the resistor R2 is connected with the gnd pin of the JL223B chip after passing through a light emitting diode D2.

In order to protect the resistance wire RT from being damaged by external force, a reversible shell for protecting the resistance wire RT is often required to be manufactured for the electronic cigarette lighter in the actual manufacturing process of the electronic cigarette lighter. When the shell is opened, the resistance wire RT is exposed; when the housing is closed, the resistance wire RT is hidden in the housing. Therefore, the push switch S1 can be directly manufactured into the shell switch of the electronic cigarette lighter in the actual manufacturing process, and can also be connected with the shell switch of the electronic cigarette lighter, so as to ensure that the push switch S1 is turned on when the shell switch of the electronic cigarette lighter is turned on; when the shell switch of the electronic cigarette lighter is turned off, the push switch S1 is turned off.

It should be noted that, due to the special feature of gnd pin of JL223B chip, when push switch S1 is not turned on, pin No. 2 (gnd pin) of JL223B chip is not really grounded, i.e., a real circuit is not formed, and at this time, all of JL223B chips are in the power-off state. When the push switch S1 is turned on, the pin 2 (gnd pin) of the chip JL223B is actually grounded to form a complete circuit, and then the chip JL223B is in standby state, and the led D2 in the switch indicator light circuit also forms a real circuit to be turned on to emit light. That is, when the led D2 emits light, the entire controller U2 is in a standby state of being powered.

In order to ensure the sensitivity of the touch switch S2 and ensure that the chip JL223B receives a satisfactory touch signal, a resistor R3 is connected in series in the circuit between the touch switch S2 and the SO pin of the chip JL223B, and an adjusting device NC3RES for adjusting the sensitivity of the touch switch S2 is connected in series in the circuit between the resistor R3 and the touch switch S2.

The overall working principle of the embodiment is as follows:

when a 5V power supply is added to a 1 st pin VCC of the control chip U1, the lithium ion rechargeable battery BT1 can be charged; after the charging is stopped, the lithium ion rechargeable battery BT1 can supply power to the control chip U1 and the control chip U2 in a reverse direction.

When the control chip U2 is in a power-off state in a non-use state, when the push switch S1 is pressed or turned on, the pin 2 of the control chip U2 is communicated with GND, and meanwhile, the LED lamp D2 connected in series with the pin 2 of the control chip U2 is turned on to indicate that the whole circuit is in a standby state. At this time, when the user touches or touches the metal surface of the touch switch S2, the pin No. 2 (having touch sensing function) of the control chip U2 can detect the touch signal, and then the pin No. 1 of the control chip U2 outputs a control signal to the control chip U1.

After the control chip U1 detects a control signal of the control chip U2 through the No. 6 pin, the LED lamp D1 is firstly lightened, and the display resistance wire RT enters a working state. Meanwhile, the No. 5 pin of the control chip U1 outputs large current to act on the resistance wire RT, and the resistance wire RT converts electric energy into heat energy and generates heat.

When the metal surface of the touch switch S2 is touched or contacted again by hand, the control chip U2 stops the output of the control signal of pin No. 1, and enters the standby state again.

In any state, the resistance wire RT is in an ignition working state, or the control chip U2 is in a standby state, and as long as the press switch S1 is pressed again, the No. 2 pin of the control chip U2 is disconnected with the ground, the LED lamp D2 is turned off, and the whole circuit stops working completely.

As described above, the utility model discloses alright fine realization.

Claims

1. An electronic cigarette lighting circuit is characterized by mainly comprising a resistance wire RT for heating, a control system connected with the resistance wire RT, a switch circuit connected with the control system and a power supply circuit connected with the control system and the switch system.

2. The electronic cigarette lighting circuit according to claim 1, wherein the control system is composed of a control chip U1; one end of the resistance wire RT is connected with a current output pin of the control chip U1, and the other end of the resistance wire RT is grounded; the output end of the power supply circuit is connected with a voltage input pin of the control chip U1 and a voltage input end of the switch circuit, and the input end of the power supply circuit is grounded; the output end of the switch circuit is connected with a signal control pin of the control chip U1, and the output end of the switch circuit is grounded.

3. The electronic cigarette lighting circuit according to claim 2, wherein the switch circuit is composed of a push switch K, one end of the push switch K is connected with a signal control pin of a control chip U1, and the other end of the push switch K is grounded; or, the switch circuit is composed of a press switch K, one end of the press switch K is connected with the signal control pin of the control chip U1, and the other end of the press switch K is connected with the output end of the power supply circuit.

4. The electronic cigarette lighting circuit according to claim 2, wherein the switch circuit is composed of a control chip U2, a push switch S1 and a touch switch S2; the power supply input pin of the control chip U2 is connected with the voltage output end of the power supply circuit, and the signal control output end of the control chip U2 is connected with the signal control pin of the control chip U1; one end of the push switch S1 is grounded, and the other end is connected with a grounding pin of the control chip U2; the touch switch S2 is connected to the touch sensing pin of the control chip U2.

5. An electronic cigarette lighting circuit according to any one of claims 1 to 4, wherein a heating indicator light circuit for displaying the working state of the resistance wire RT is further arranged on the control system.

6. An electronic cigarette lighting circuit according to claim 4, wherein a switch indicator light circuit for displaying the operating state of the switch circuit is further provided on the switch circuit.

7. The electronic cigarette circuit of claim 4, wherein the control chips U1 are S091D chips or JL091D chips, and the control chips U2 are JL223B chips.

8. The electronic cigarette lighting circuit according to claim 6, wherein the switch indicator light circuit comprises a light emitting diode D2 and a resistor R2, one end of the resistor R2 is connected to the output terminal of the power supply circuit, and the other end of the resistor R2 is connected to the ground pin of the control chip U2 through the light emitting diode D2.

9. The electronic cigarette lighting circuit of claim 7, wherein the power supply circuit is a lithium ion rechargeable battery.