Electronic ignition device

Abstract

The utility model belongs to the technical field of electronics, and relates to an electronic ignition device which comprises a charging circuit, a driving circuit, a switching circuit and a battery protection board circuit which are electrically connected. The charging circuit is used for converting electric energy provided by an external power source into direct current to supply power to the device, the driving circuit is used for converting the electric energy into mechanical energy or heat energy to achieve the ignition function, and the switching circuit is used for controlling the working state of the driving circuit according to operation of a user or an external signal. The battery protection board circuit is used for monitoring voltage, current and temperature parameters of a battery and taking protection measures according to the actual condition of the battery so as to prevent the dangerous conditions of over-charging, over-discharging, over-current and short circuit of the battery. Ignition is safe and stable, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic technical field, more specifically, relate to an electronic lighter. BACKGROUND

[0002] As a kind of modern ignition technology, electronic lighter is widely used, including but not limited to tobacco ignition, outdoor camping, mountaineering and other outdoor activities, and ignition system of automobile, motorcycle and other vehicles.In these occasions, electronic lighter provides users with convenient and efficient ignition experience with long service life, no fuel, environmental protection and health and other characteristics.

[0003] Electronic lighter is usually composed of electronic chip, battery, thumb button, electrode and other key components.Among them, electronic chip is responsible for controlling the generation of high-energy pulse current and maintaining circuit safety, battery powers lighter, thumb button is used to trigger electronic lighter, and electrode is responsible for generating electric arc to ignite fuel.In addition, some advanced electronic lighter is also equipped with components such as rotating wheel to raise voltage to better generate electric arc.

[0004] However, since the energy storage of ignition device usually adopts single element energy storage method, i.e.single inductance or single capacitance energy storage, its energy needs to be responsible for breakdown and discharge, which makes energy control relatively difficult.In addition, the failure rate of electronic ignition system is high, mainly manifested in spark of contact, poor contact and failure of core components such as ignition module and ignition coil.These failures not only affect the normal work of ignition system, but also may cause safety hazards to users. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is the failure of contact spark, poor contact and core components such as ignition module and ignition coil in the prior art, and the above-mentioned defects of the prior art are provided, and an electronic lighter is provided, comprising:

[0006] Charging circuit, drive circuit, switch circuit and battery protection board circuit connected by electricity;

[0007] The charging circuit is used to convert the electric energy provided by external power supply into direct current to power the device, the drive circuit is used to convert electric energy into mechanical energy or heat energy to realize the function of lighter, the switch circuit is used to control the working state of drive circuit according to the operation of user or external signal, and the battery protection board circuit is used to monitor the voltage, current and temperature parameters of battery, and take protective measures according to the actual situation of battery to prevent the occurrence of overcharge, overdischarge, overcurrent and short circuit dangerous situation.

[0008] Preferably, the charging circuit comprises: the pin 5 of the lithium ion battery charging management chip U2 is connected with one end of the resistor R1, the other end of the resistor R1 is grounded, the pin 4 of the lithium ion battery charging management chip U2 is respectively connected with one end of the capacitor C1 and the pin 1 of the terminal J1, the other end of the capacitor C1 is grounded, the pin 3 of the lithium ion battery charging management chip U2 is connected with VCC, and the pin 2 of the lithium ion battery charging management chip U2 is grounded.

[0009] Preferably, the driving circuit comprises: the source of the MOS tube V1 is grounded, the gate of the MOS tube V1 is respectively connected with one end of the resistor R3 and one end of the resistor R4, and the other end of the resistor R4 is grounded.

[0010] Preferably, the switch circuit comprises: one end of the key S2 is connected with one end of the capacitor C4, the other end of the key S2 is grounded, and the other end of the capacitor C4 is grounded.

[0011] Preferably, the battery protection plate circuit comprises: the pin 4 of the two-in-one single lithium battery protection chip U3 is connected with the pin 5 of the two-in-one single lithium battery protection chip U3 and grounded, the pin 3 of the two-in-one single lithium battery protection chip U3 is respectively connected with one end of the capacitor C3 and one end of the resistor R5, the other end of the capacitor C3 is respectively connected with the pin 2 of the two-in-one single lithium battery protection chip U3, the pin 1 of the two-in-one single lithium battery protection chip U3, the negative electrode of the lithium battery BAT, the other end of the resistor R5 is connected with VCC and the positive electrode of the lithium battery BAT.

[0012] Preferably, the lithium ion battery charging management chip U2 is AP5054B.

[0013] Preferably, the two-in-one single lithium battery protection chip U3 is CM1128.

[0014] The electronic lighter device has the following beneficial effects: the charging circuit, the driving circuit, the switch circuit and the battery protection plate circuit are electrically connected; the charging circuit is used for converting the electric energy provided by the external power supply into direct current to supply power to the device; the driving circuit is used for converting the electric energy into mechanical energy or heat energy to realize the lighting function; the switch circuit is used for controlling the working state of the driving circuit according to the operation of the user or the external signal; the battery protection plate circuit is used for monitoring the voltage, current and temperature parameters of the battery, and taking protective measures according to the actual situation of the battery to prevent the occurrence of overcharge, overdischarge, overcurrent and short circuit dangerous conditions; the lighting is safe and stable, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structure shown in the drawings without creative labor. The present application will be further described below in combination with the drawings and embodiments. In the drawings:

[0016] Figure 1 is a circuit composition schematic diagram of the electronic ignition device of the present application;

[0017] Figure 2 is a charging circuit circuit diagram in the electronic ignition device of the present application;

[0018] Figure 3 is a driving circuit circuit diagram in the electronic ignition device of the present application;

[0019] Figure 4 is a switch circuit circuit diagram in the electronic ignition device of the present application;

[0020] Figure 5 is a battery protection plate circuit circuit diagram in the electronic ignition device of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0024] Please refer to Figure 1 , the circuit composition schematic diagram of the electronic lighter device of the present application is shown. As Figure 1 shown, in the electronic lighter device provided by the first embodiment of the present application, at least includes, through the electrical connection of charging circuit, drive circuit, switch circuit and battery protection board circuit; the charging circuit is used for converting the electric energy provided by the external power supply into direct current to supply power for the device, the drive circuit is used for converting the electric energy into mechanical energy or heat energy to realize the lighter function, the switch circuit is used for controlling the working state of the drive circuit according to the operation of the user or the external signal, and the battery protection board circuit is used for monitoring the voltage, current and temperature parameters of the battery, and taking protective measures according to the actual situation of the battery to prevent the occurrence of overcharge, overdischarge, overcurrent and short circuit dangerous situation.

[0025] Figure 2 is the charging circuit circuit diagram in the electronic lighter device of the present application. As Figure 2 shown, the charging circuit includes: the pin 5 of lithium ion battery charging management chip U2 is connected with one end of resistor R1, the other end of resistor R1 is grounded, the pin 4 of lithium ion battery charging management chip U2 is connected with one end of capacitor C1 and the pin 1 of terminal J1 respectively, the other end of capacitor C1 is grounded, the pin 3 of lithium ion battery charging management chip U2 is connected with VCC, and the pin 2 of lithium ion battery charging management chip U2 is grounded.

[0026] The working principle of the charging circuit is: through the rectifier bridge, the alternating current is converted into direct current, and then by using the PWM (pulse width modulation) control mode, the charging current and voltage are adjusted to realize the charging management of the battery. In the charging process, the charging circuit also monitors the voltage, current and temperature parameters of the battery in real time to prevent the occurrence of overcharge, overheat and other dangerous situations.

[0027] In specific implementation, the lithium ion battery charging management chip U2 can be but is not limited to AP5054B.

[0028] AP5054B is a high-performance lithium-ion battery charging management chip, belonging to the Chipown brand products. AP5054B adopts linear charging method, through the constant current / constant voltage (CC / CV) charging mode, realizes the efficient and safe charging of lithium-ion battery. In the charging process, AP5054B can adjust the charging current and voltage in real time according to the state of the battery, ensures that the battery is charged in a safe and efficient state. In addition, AP5054B also has a thermal regulation function. When the external environment temperature is too high or in high-power work, the thermal feedback can automatically adjust the charging current, reduce the chip temperature, prevent overheating from causing damage to the battery and chip. This intelligent temperature management function makes AP5054B can work stably in various environments, ensures the safety and reliability of the charging process.

[0029] The main function of AP5054B is to provide safe and efficient charging management for lithium-ion batteries. It can directly obtain power from the USB interface to charge single lithium-ion batteries. Through the preset 4.2V charging voltage and ±1% accuracy, AP5054B can ensure that the battery is fully charged, while avoiding overcharging and overdischarging, prolonging the service life of the battery.

[0030] In addition, AP5054B also has various protection functions, such as under-voltage lockout, automatic recharging, charging current monitoring, etc. These functions can monitor the state of the battery in real time during charging, and take appropriate protective measures immediately once abnormal conditions are found, to ensure the safety of the battery and charging equipment.

[0031] Figure 3 It is the drive circuit circuit diagram in the electronic ignition device of the utility model. As shown in Figure 3 The drive circuit includes: the source of MOS tube V1 is grounded, the gate of MOS tube V1 is connected with one end of resistor R3 and one end of resistor R4 respectively, and the other end of resistor R4 is grounded.

[0032] The working principle of the drive circuit is: first, receive the control signal from the switching circuit, then according to the requirement of the signal, through the on-off of the ignition coil or spark plug and other components, high-voltage arc or spark is generated. Specifically, when the drive circuit receives the ignition signal, it will quickly connect the primary coil of the ignition coil or spark plug to the power supply, so that the current increases rapidly. When the current reaches a certain degree, the drive circuit will quickly cut off the power supply, so that the secondary coil of the ignition coil or spark plug generates high-voltage arc or spark, thereby igniting the fuel.

[0033] Figure 4 It is the switching circuit circuit diagram in the electronic ignition device of the utility model. As shown in Figure 4As shown in the figure, the switch circuit includes: one end of the key S2 is connected with one end of the capacitor C4, the other end of the key S2 is grounded, and the other end of the capacitor C4 is grounded.

[0034] The working principle of the switch circuit is: by receiving the operation signal of the user or the external signal, such as the rotation of the ignition switch, the closing of the safety switch, etc., to judge whether it is necessary to start the driving circuit. When the user needs to ignite the fuel, the ignition switch or the safety switch will be operated, so that the switch circuit generates a control signal. This control signal will be transmitted to the driving circuit, and the driving circuit will control the working state of the ignition coil or the spark plug according to the signal requirements, so as to realize the ignition function.

[0035] Figure 5 It is the battery protection plate circuit circuit diagram in the electronic ignition device of the utility model. Figure 5 As shown in the figure, the battery protection plate circuit includes: the pin 4 of the two-in-one single lithium battery protection chip U3 is connected with the pin 5 of the two-in-one single lithium battery protection chip U3 and grounded, the pin 3 of the two-in-one single lithium battery protection chip U3 is connected with one end of the capacitor C3 and one end of the resistor R5 respectively, the other end of the capacitor C3 is connected with the pin 2 of the two-in-one single lithium battery protection chip U3, the pin 1 of the two-in-one single lithium battery protection chip U3 and the negative electrode of the lithium battery BAT respectively, the other end of the resistor R5 is connected with VCC and the positive electrode of the lithium battery BAT.

[0036] The battery protection plate circuit is an important safety device in the electronic ignition device, which is responsible for monitoring the voltage, current and temperature of the battery and taking corresponding protection measures according to the actual situation of the battery to prevent overcharge, overdischarge, overcurrent and short circuit of the battery.

[0037] The working principle of the battery protection plate circuit is: by monitoring the voltage, current and temperature of the battery in real time, to judge whether the working state of the battery is normal. When the battery appears overcharge, overdischarge, overcurrent or short circuit, the battery protection plate circuit will quickly cut off the charging or discharging circuit of the battery to prevent the occurrence of dangerous situation. At the same time, the battery protection plate circuit will also send a warning signal to the user through the indicator light or alarm, etc.

[0038] In specific implementation, the two-in-one single lithium battery protection chip U3 can be but is not limited to CM1128.

[0039] CM1128 is a high-integration two-in-one single lithium battery protection chip, which provides comprehensive and accurate protection for lithium ion battery.

[0040] CM1128 chip integrates high-precision voltage detection circuit, delay circuit and low-internal-resistance MOSFET and other key components inside. Its working principle is mainly to judge whether the battery is in abnormal state such as overcharge, overdischarge, discharge overcurrent, charging overcurrent or short circuit by monitoring the voltage and current state of the battery in real time. Once the abnormality is found, the chip will quickly start the protection mechanism to cut off the charging and discharging circuit of the battery by controlling the on-off of the MOSFET, so as to realize the effective protection of the battery.

[0041] The CM1128 chip has the following characteristics:

[0042] High integration, the CM1128 chip integrates protection IC and MOSFET and other key components in one chip, greatly simplifying the circuit design and production process;

[0043] High precision, the high-precision voltage detection circuit built-in CM1128 chip can monitor the voltage state of the battery in real time, ensuring the accuracy and reliability of protection;

[0044] Low power consumption, CM1128 chip adopts low-power design, even in standby state, it can also maintain very low self-consumption, prolonging the service life of the battery;

[0045] Small size, CM1128 chip adopts small packaging, suitable for space-limited application scenarios.

[0046] CM1128 chip is widely used in electronic cigarettes, mobile power supplies and other high-current demand devices, and is also suitable for protection of single lithium ion / lithium polymer rechargeable battery.

[0047] The utility model discloses a design through above embodiment, its beneficial effect is: through setting through electrical connection's charging circuit, drive circuit, switch circuit and battery protection board circuit, charging circuit is used to convert the electric energy provided by external power supply into direct current and supplies power for the device, drive circuit is used to convert electric energy into mechanical energy or heat energy to realize the function of striking, switch circuit is used to control the working condition of drive circuit according to the operation or external signal of user, battery protection board circuit is used to monitor the voltage, current and temperature parameter of battery, and according to the actual situation of battery to take protective measures to prevent the occurrence of battery overcharge, overdischarge, overcurrent and short circuit dangerous situation, strike safety and stability, long service life.

[0048] The utility model is described according to specific embodiments, but those skilled in the art should understand that various changes and equivalent replacements can be carried out without departing from the scope of the utility model. In addition, in order to adapt to specific occasions of the utility model technology, the utility model can be modified in many ways without departing from the protection scope. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all embodiments falling into the protection scope of claims.

Claims

1. An electronic ignition device, characterized in that, include: The charging circuit, drive circuit, switching circuit, and battery protection board circuit are electrically connected. The charging circuit is used to convert electrical energy provided by an external power source into direct current to power the device. The drive circuit is used to convert electrical energy into mechanical energy or heat energy to achieve the ignition function. The switching circuit is used to control the working state of the drive circuit according to the user's operation or external signal. The battery protection board circuit is used to monitor the voltage, current and temperature parameters of the battery, and take protective measures according to the actual situation of the battery to prevent the occurrence of battery overcharging, over-discharging, overcurrent and short circuit dangers. The charging circuit includes: pin 5 of lithium-ion battery charging management chip U2 is connected to one end of resistor R1, the other end of resistor R1 is grounded, pin 4 of lithium-ion battery charging management chip U2 is connected to one end of capacitor C1 and pin 1 of terminal J1 respectively, the other end of capacitor C1 is grounded, pin 3 of lithium-ion battery charging management chip U2 is connected to VCC, and pin 2 of lithium-ion battery charging management chip U2 is grounded. The driving circuit includes: the source of MOS transistor V1 is grounded, the gate of MOS transistor V1 is connected to one end of resistor R3 and one end of resistor R4 respectively, and the other end of resistor R4 is grounded.

2. The electronic ignition device according to claim 1, characterized in that, The switching circuit includes: one end of button S2 is connected to one end of capacitor C4, the other end of button S2 is grounded, and the other end of capacitor C4 is grounded.

3. The electronic ignition device according to claim 1, characterized in that, The battery protection board circuit includes: pin 4 of the two-in-one single-cell lithium battery protection chip U3 is connected to pin 5 of the two-in-one single-cell lithium battery protection chip U3 and grounded; pin 3 of the two-in-one single-cell lithium battery protection chip U3 is connected to one end of capacitor C3 and one end of resistor R5 respectively; the other end of capacitor C3 is connected to pin 2 of the two-in-one single-cell lithium battery protection chip U3, pin 1 of the two-in-one single-cell lithium battery protection chip U3 and the negative terminal of lithium battery BAT respectively; and the other end of resistor R5 is connected to VCC and to the positive terminal of lithium battery BAT.

4. The electronic ignition device according to claim 1, characterized in that, The lithium-ion battery charging management chip U2 is AP5054B.

5. The electronic ignition device according to claim 3, characterized in that, The dual-in-one single-cell lithium battery protection chip U3 is CM1128.

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