A cigarette lighter device with wireless charging function

Abstract

The utility model provides a kind of cigarette lighter with wireless charging function belongs to the field of charge-discharge technology, by integrating wireless charging function on cigarette lighter, the problem of present cigarette lighter function single is solved, the function of wireless charging treasure is increased, it is convenient and equipment adsorption charging, without data line connection, the convenience of charging is improved, the practicality and application range of product are improved, its technical scheme is: including battery, charge-discharge port, charge-discharge module, laser drive module and laser instrument;The battery, charge-discharge port are connected with charge-discharge module;The laser drive module output end is connected with the laser instrument;The charge-discharge module output end connects laser drive module input end;The charge-discharge module is also connected wireless charging H bridge drive circuit.

Description

Technical Field

[0001] This utility model belongs to the field of charging and discharging technology, and in particular relates to a cigarette lighter device with wireless charging function. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Currently, cigarette lighters ignite cigarettes without an open flame. Existing technology combines the functions of a cigarette lighter and a power bank, making it serve both purposes. However, this charging function is wired, requiring an additional data cable. These wired power bank cigarette lighters are prone to tangling, loss, and are inconvenient to store, especially in confined spaces where plugging, unplugging, and managing the cable significantly reduces ease of use. Wired power bank cigarette lighters also require compatible device interface types; if the cable type is fixed, it may not be compatible with all devices. Poor cable quality or loose connections can cause short circuits and overheating, posing a safety hazard, especially in the high-temperature environment of a car. Furthermore, the need for manual plugging and unplugging of the cable can lead to wear and tear on the interface. Utility Model Content

[0004] To address at least one of the technical problems existing in the background art, the first aspect of this utility model provides a cigarette lighter device with wireless charging function. Through wireless charging technology, it is compatible with devices that support wireless charging, eliminating the need for additional wires and thus having wider adaptability. It avoids wear and tear and poor contact of physical interfaces, and some models have functions such as over-temperature protection and foreign object detection, resulting in better safety. It automatically aligns with the charging area through magnetic force, eliminating the need for manual adjustment, making it smoother to use. Furthermore, the absence of exposed wires better meets the modern user's pursuit of a minimalist design.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cigarette lighter device with wireless charging function includes a battery, a charging / discharging port, a charging / discharging module, a laser driving module, and a laser. The battery and the charging / discharging port are both connected to the charging / discharging module. The output terminal of the laser drive module is connected to the laser. The output terminal of the charging / discharging module is connected to the input terminal of the laser driving module; The charging and discharging module is also connected to a wireless charging H-bridge drive circuit. The wireless charging H-bridge drive circuit includes an N+P channel enhancement-mode MOSFET chip, which is connected to the wireless charging induction coil.

[0006] In one implementation, the output terminal of the charging / discharging module is connected to one end of a second switch, and the other end of the second switch is connected to a timer circuit.

[0007] In one implementation, the timer circuit includes a timer chip, which has a total of eight pins: pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, and pin 8. The first pin is a ground pin, the second pin is a trigger pin, the third pin is an output pin, the fourth pin is a reset pin, the fifth pin is a control voltage pin, the sixth pin is a threshold pin, the seventh pin is a discharge pin, and the eighth pin is a power input pin.

[0008] In one implementation, the charging and discharging module is connected to one end of the first switch, and the other end of the first switch is grounded.

[0009] In one implementation, the charging / discharging module integrates a USB-C input / output identification interface.

[0010] In one implementation, two N+P channel enhancement-mode MOSFET chips are used. Each N+P channel enhancement-mode MOSFET chip has eight pins: pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, and pin 8. The first and third pins are the source, the second and fourth pins are the gate, and the fifth, sixth, seventh, and eighth pins are the drain.

[0011] In one implementation, the charging and discharging module includes a mobile power chip, which is connected to a battery protection chip.

[0012] In one implementation, the power bank chip is connected to an indicator light.

[0013] In one implementation, an inductor is provided between the output terminal of the laser driving module and the laser.

[0014] In one embodiment, the laser driving module includes a driving chip, which has a total of nine pins; These are pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, and pin 9, respectively. The first pin is a feedback pin, the second pin is an enable pin, the third pin is a compensation pin, the fourth pin is a power supply voltage pin, the fifth and sixth pins are switching pins, the seventh and eighth pins are ground terminals, and the ninth pin is a heat dissipation pin.

[0015] The beneficial effects of this utility model are: 1. This utility model simultaneously meets the two core needs of mobile charging and laser cigarette lighting. The mobile power supply function includes wired charging and wireless charging, integrating multiple functions into one device.

[0016] 2. This new magnetic power bank cigarette lighter eliminates the need for plugging and unplugging data cables. Simply bring it close to a device that supports magnetic charging, and it will automatically attract and begin charging. The magnetic connection reduces wear and tear on the device's interface, helping to extend its lifespan and lowering the probability of device repairs due to interface issues. Simply bring the power bank close to the device for accurate charging, improving charging convenience and efficiency. Without the constraints of a data cable, the design is more streamlined and elegant, and there's no risk of tangled wires when carrying it.

[0017] 3. This utility model has a laser cigarette ignition function. It ignites cigarettes by focusing laser energy without producing an open flame, thus avoiding the risk of fire caused by sparks from traditional open flame lighters.

[0018] 4. This utility model features a timer function to prevent accidental activation and prolonged operation, further enhancing safety. It only requires charging to use, has a fast start-up speed, supports multiple cigarette lighting sessions on a single charge, and offers stable battery life.

[0019] 5. This utility model has a certain battery capacity, which can charge mobile phones and other devices, as well as power the laser cigarette lighting function. A full charge can support multiple cigarette lighting and multiple device charging, eliminating the need to frequently charge the cigarette lighter separately.

[0020] 6. This utility model can recharge itself via a Type-C interface, is compatible with common chargers, car chargers, and other scenarios, ensuring battery life. It integrates two frequently needed functions.

[0021] Advantages of the present invention in additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is a circuit structure diagram of the charging and discharging module disclosed in this utility model; Figure 2 This is a circuit diagram of the laser driving module disclosed in this utility model; Figure 3This is a structural diagram of the wireless charging H-bridge drive circuit disclosed in this utility model; Figure 4 This is a circuit structure diagram of the TYPE-C module disclosed in this utility model; Figure 5 This is a timer circuit structure diagram disclosed in this utility model; Figure 6 This is the overall circuit schematic diagram disclosed in this utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0028] In this utility model, terms such as "fixed connection," "connected," and "joined" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0029] Example 1 This embodiment provides a cigarette lighter device with wireless charging function, such as... Figure 6As shown, it includes a battery, a charging / discharging port, a charging / discharging module, a laser driving module, and a laser; the battery and the charging / discharging port are both connected to the charging / discharging module; the output of the laser driving module is connected to the laser; the output of the charging / discharging module is connected to the input of the laser driving module; the charging / discharging module is also connected to a wireless charging H-bridge driving circuit, which includes an N+P channel enhancement-mode MOSFET chip, and the N+P channel enhancement-mode MOSFET chip is connected to the wireless charging induction coil.

[0030] In a specific implementation, the output terminal OUT of the charging and discharging module is connected to one end of the second switch S2, and the other end of the second switch S2 is connected to the timer circuit.

[0031] In a specific implementation, the charging and discharging module is connected to one end of the first switch S1, and the other end of the first switch S1 is grounded.

[0032] The charging and discharging module can recognize short button operations via the first switch S1. A button press with a duration longer than 60ms but less than 2s is considered a short press. A short press will turn on the power indicator, boost output, and wireless charging output. A button press with a duration of less than 30ms will not have any response. Two consecutive short presses within 1 second will turn off the boost output and power indicator.

[0033] In a specific implementation, the charging / discharging module integrates a USB-C input / output identification interface, automatically switches between built-in pull-up and pull-down resistors, and automatically identifies the charging / discharging attributes of the inserted device. It supports multiple DPDM fast charging protocols: QC2.0, QC3.0, FCP, AFC, SCP, Apple, and Samsung. When charging a mobile phone: after entering discharge mode, it automatically detects the fast charging timing on the DP and DM pins, intelligently identifies the phone type, and supports phones with QC2.0, QC3.0, FCP, AFC, and SCP protocols. It also supports Apple 2.4A mode, Samsung 2A mode, and BC1.2 standard Android 1A mode.

[0034] In a specific implementation, the charging / discharging module is connected to the wireless charging H-bridge driver circuit and also features wireless charging functionality. The wireless charger supports automatic detection of a phone being placed on the coil; once the phone is placed on the coil, it immediately wakes up from standby mode and begins charging, eliminating the need for button operation. When only the wireless charger is charging the device, it supports a power output of 15W.

[0035] In specific implementation methods, such as Figure 1 As shown, the charging and discharging module includes a power bank chip, which is connected to the battery protection chip; the power bank chip is also connected to an indicator light.

[0036] The charging / discharging module integrates two NTC functions: NTC1 for detecting battery temperature and NTC2 for detecting the wireless charging coil temperature. NTC1 uses a current-switching detection module. The power bank chip internally detects the current output from the NTC1 pin and the voltage generated by the external pull-down NTC1 thermistor to determine the current battery temperature: During charging, charging stops when the temperature is above 45°C or below 0°C; during discharging, discharging stops when the temperature is above 60°C or below -20°C. The NTC2 pin detects the wireless charging coil temperature. The NTC2 pin outputs 20μA. When the voltage detected by the NTC2 pin is below 0.29V, it indicates the coil temperature exceeds 75°C, and wireless charging / discharging is disabled. When the NTC2 voltage is above 0.7V (coil temperature below 50°C), wireless charging / discharging resumes.

[0037] like Figure 1As shown, the power bank chip model is IP5561. This power bank chip has a total of forty-nine pins, designated as pin 1, pin 2, pin 3, ..., pin 49. Pin 1 is floating; pins 2, 3, and 4 are the power indicator light driver pins; pins 5, 6, 7, 8, and 9 are DC-DC switching node pins; pin 10 is the power indicator light driver / battery capacity setting pin; pin 11 is the power indicator light driver / fast charging indicator light driver pin; pin 12 is the internal high-voltage driver pin; pin 13 is the battery capacity setting pin; pins 14, 15, 47, and 48 are the system input / output common node pins; pins 16 and 17 are VBUS port input / output power pins; pin 18 is the battery power supply pin; and pin 19 is the chip's 3.3V voltage. The output pins are as follows: pin 20 is the NTC1 resistor detection pin; pin 21 is the button pin; pin 22 is the VBUS port mobile phone fast charging intelligent identification DP pin; pin 23 is the VBUS port mobile phone fast charging intelligent identification DM pin; pin 24 is the VBUS port detection CC2 pin; pin 25 is the VBUS port detection CC1 pin; pin 26 is the wireless charging digital circuit power supply pin; pin 27 is the wireless charging load signal detection pin; pin 28 is the battery voltage sampling pin; pin 29 is the wireless charging coil voltage detection input pin; pin 30 is the wireless charging H-bridge lower transistor drive pin 1; and pin 31 is the wireless charging H-bridge upper transistor drive pin 1. Pin 32 is the wireless charging Q-value detection pin; pin 33 is the wireless charging NTC detection / wireless charging light display driver pin; pin 34 is the wireless charging transmit voltage demodulation input pin; pin 35 is the wireless charging transmit current demodulation detection pin; pin 36 is the wireless charging H-bridge lower transistor driver pin 2; pin 37 is the wireless charging H-bridge upper transistor driver pin 2; pin 38 is the wireless charging DP pin; pin 39 is the ground pin; pins 40 and 44 are the wireless charging power supply pins; pin 41 is the wireless charging DM pin; pin 42 is the VOUT port mobile phone fast charging intelligent identification DP pin; pin 43 is the VOUT port mobile phone fast charging intelligent identification DM pin; pins 45 and 46 are the VOUT output port power supply pins; pin 49 is the power ground and heat dissipation ground pins. The second pin of the power bank chip is connected to one end of resistor R8, the third pin of the power bank chip is connected to one end of resistor R9, the fourth pin of the power bank chip is connected to the connection circuit of the first light-emitting branch and the second light-emitting branch, the other end of resistor R8 is connected to the first light-emitting branch, and the other end of resistor R9 is connected to the second light-emitting branch.

[0038] Pins 5, 6, 7, 8, and 9 of the power bank chip are shorted and connected to one end of inductor L1 and the cathode of diode D3. The anode of diode D3 is grounded. The other end of inductor L1 is connected to one end of resistor R30. The other end of resistor R30 is connected to the power input terminals of two battery protection chips and one end of capacitor C35. The other end of capacitor C35 is connected to the ground terminals of the two battery protection chips. The VM terminals of the two battery protection chips are grounded. One end of capacitors C13, C14, and C15 is also connected between inductor L1 and resistor R30. The other ends of capacitors C13, C14, and C15 are all grounded.

[0039] The positive input VBAT of the charging / discharging module is connected between inductor L1 and resistor R30, and the negative input VBAT- is connected between capacitor C35 and the connection point between the two battery protection chips.

[0040] The tenth pin of the power bank chip is connected to ground in series with resistor R31.

[0041] The eleventh pin of the power bank chip is connected to one end of resistor R10, and the other end of resistor R10 is connected to the positive terminal of LED D8. The negative terminal of LED D8 is grounded.

[0042] The twelfth pin of the power bank chip is connected to one end of capacitor C16, and the other end of capacitor C16 is connected to the ninth pin.

[0043] The thirteenth pin of the power bank chip is connected to ground in series with resistor R12.

[0044] The fourteenth, fifteenth, forty-seventh, and forty-eighth pins of the power bank chip are shorted and connected to one end of capacitors C8, C9, C10, C11, and C12. The other ends of capacitors C8, C9, C10, C11, and C12 are grounded.

[0045] The sixteenth and seventeenth pins of the power bank chip are shorted and connected to the VBUS terminal of the charging / discharging port. One end of capacitor C2 and capacitor C3 is also connected between the sixteenth and seventeenth pins and the VBUS terminal of the charging / discharging port. The other end of capacitor C2 and capacitor C3 is grounded.

[0046] The eighteenth pin of the power bank chip is connected between inductor L1 and resistor R30. The eighteenth pin is connected to one end of capacitor C17, and the other end of capacitor C17 is grounded.

[0047] The nineteenth pin of the power bank chip is connected in series with capacitor C38 and then grounded.

[0048] The twentieth pin of the power bank chip is connected to one end of resistor R7 and capacitor C36, while the other end of resistor R7 and capacitor C36 is grounded.

[0049] The twenty-first pin of the power bank chip is connected to one end of resistor R1 and capacitor C1. The other end of resistor R1 is connected to one end of first switch S1, and the other end of capacitor C1 and first switch S1 is grounded.

[0050] The 22nd, 23rd, 24th and 25th pins of the power bank chip are connected to the charging and discharging port.

[0051] The 26th pin of the power bank chip is connected in series with capacitor C5 and then grounded.

[0052] The 27th pin of the power bank chip is connected to one end of resistor R2, and the other end of resistor R2 is connected to the 21st pin.

[0053] The 28th pin of the power bank chip is connected to the source (S) of the field-effect transistor Q2. The drain (D) of the field-effect transistor is connected to one end of resistors R13 and R14. The other end of resistor R13 is connected to the positive terminal VBAT of the battery. The other end of resistor R14 is grounded. The gate of the field-effect transistor is connected to the 44th pin.

[0054] The 29th pin of the power bank chip is connected to one end of resistor R16, resistor R18 and capacitor C20. The other end of resistor R18 and capacitor C20 is grounded. The other end of resistor R16 is connected to resistor R17 and the negative terminal of diode D9.

[0055] Pin 30 of the power bank chip is connected to pin 2 of the N+P channel enhancement-mode MOSFET chip Q3.

[0056] The 31st pin of the power bank chip is connected to the 4th pin of the N+P channel enhancement-mode MOSFET chip Q3.

[0057] The 32nd pin of the power bank chip is connected to one end of resistor R19, and the other end of resistor R19 is connected to the positive terminal of diode D9.

[0058] Pin 33 of the power bank chip is connected to one end of resistor R11 and capacitor C37, while the other end of resistor R11 and capacitor C37 is grounded.

[0059] The 34th pin of the power bank chip is connected to one end of capacitor C18, the other end of capacitor C18 is connected to one end of resistor R15, resistor R17 and capacitor C19, and the other end of resistor R15 and capacitor C19 is grounded.

[0060] The 35th pin of the power bank chip is connected to one end of capacitor C27, and the other end of capacitor C27 is grounded.

[0061] The 36th pin of the power bank chip is connected to the second pin of the N+P channel enhancement-mode MOSFET chip Q4.

[0062] The 37th pin of the power bank chip is connected to the 4th pin of the N+P channel enhancement-mode MOSFET chip Q4.

[0063] The 38th pin of the power bank chip is connected to one end of resistor R25, and the other end of resistor R25 is connected to the charging / discharging port.

[0064] The thirty-ninth pin of the power bank chip is grounded.

[0065] The drain (D) of the field-effect transistor Q1 on the 40th pin of the power bank chip is connected. The gate (G) of the field-effect transistor Q1 is connected to one end of resistor R5, resistor R6, and capacitor C7. The other end of resistor R6 is grounded. The other end of resistor R5 and battery C7 is connected to the source (S) of the field-effect transistor. The gate (G) of the field-effect transistor Q1 is also connected to the collector of transistor N1. The emitter of transistor N1 is connected to the source (S) of the field-effect transistor. The base of transistor N1 is connected to one end of resistor R3. The other end of resistor R3 is connected to resistor R4 and the negative terminal of diode D2. The other end of resistor R4 is connected to the source (S) of the field-effect transistor. The source (S) of the field-effect transistor is connected to the 44th pin of the power bank chip.

[0066] Pin 41 of the power bank chip is connected to one end of resistor R24, and the other end of resistor R24 ​​is connected to the charging / discharging port.

[0067] Pin 44 of the power bank chip is connected to capacitor C6 and the negative terminal of diode D1. The other end of capacitor C6 is grounded, and the positive terminal of diode D1 is connected to the positive terminal of the battery.

[0068] The 45th and 46th pins of the power bank chip are shorted and connected to capacitor C4. The other end of capacitor C4 is grounded. The connection between the 45th and 46th pins of the power bank chip and capacitor C4 is the output terminal OUT.

[0069] The 49th pin of the power bank chip is grounded.

[0070] Optional, such as Figure 3As shown, the wireless charging H-bridge driver circuit includes two N+P channel enhancement-mode MOSFETs, Q3 and Q4. The second pin of N+P channel enhancement-mode MOSFET Q3 is connected to ground via series with resistor R20. The first pin of N+P channel enhancement-mode MOSFET Q3 is connected to one end of capacitors C21 and C26, resistors R22 and R23. The other end of capacitor C21 is connected to the forty-fourth pin of the power bank chip and also to the third pin of N+P channel enhancement-mode MOSFET Q3. The other end of resistor R23 is connected to one end of capacitor C27. The other end of resistor R22 is grounded. The other end of capacitor C26 is connected to the forty-fourth pin of the power bank chip. The fourth pin of N+P channel enhancement-mode MOSFET Q3 is connected to the thirty-first pin of the power bank chip. The fifth, sixth, seventh, and eighth pins of N+P channel enhancement-mode MOSFET Q3 are connected to the induction coil of the wireless charging circuit. The first pin of the N+P channel enhancement-mode MOSFET chip Q3 is also connected to the first pin of the N+P channel enhancement-mode MOSFET chip Q4. The second pin of the N+P channel enhancement-mode MOSFET chip Q4 is connected to ground in series with resistor R21. The third pin of the N+P channel enhancement-mode MOSFET chip Q4 is connected to the other end of capacitor C26. The fifth, sixth, seventh, and eighth pins of the N+P channel enhancement-mode MOSFET chip Q4 are shorted and connected to one end of capacitors C22, C23, C24, and C25. The other ends of capacitors C22, C23, C24, and C25 are connected to the other end of the wireless charging induction coil and also to the positive terminal of diode D9. The wireless charging H-bridge drive circuit generates current to charge the device by inducing a magnetic field through the MOSFET chip connected to the coil.

[0071] In specific implementation methods, such as Figure 2 As shown, the laser driver module uses PWM (Pulse Width Modulation) to control the step-down circuit, converting the input voltage into a stable output voltage suitable for the load. Its built-in high-current P-MOSFET achieves high efficiency (conversion efficiency exceeding 90%) and excellent transient response. It features multiple protection mechanisms: automatically shutting down the output when the chip junction temperature exceeds 150°C and resuming operation after cooling to 130°C; real-time current monitoring to prevent overcurrent damage to the output load or chip; the chip entering a protection state when the output current exceeds a set value; and gradually increasing the output current during startup to avoid current surges.

[0072] An inductor L2 is provided between the output terminal of the laser driver module and the laser. The laser driver module includes a driver chip, model FP7102XR-LF or FP7103 XR-LF. The driver chip has nine pins: pin 1, pin 2, pin 3... pin 9. The first pin of the driver chip is the feedback (FB) pin, the second pin is the enable (EN) pin, the third pin is the compensation (COMP) pin, the fourth pin is the supply voltage (VCC) pin, the fifth and sixth pins are the switching (LX) pins, the seventh and eighth pins are the ground terminal (GND terminal), which is the ground terminal of the laser driver module, and the ninth pin is the heat dissipation (EP) pin.

[0073] The first pin of the driver chip is connected to one end of resistor R27, and the other end of resistor R27 is grounded; the negative output terminal LD- of the laser driver module is connected to the connection circuit between the first pin of the driver chip and resistor R27.

[0074] The fifth, sixth, and ninth pins of the driver chip are shorted and connected to one end of inductor L2 and the negative terminal of diode D10. The other end of inductor L2 is connected to the positive output terminal LD+ of the laser driver module. The positive terminal of diode D10 is grounded. The connection circuit between inductor L2 and the positive output terminal of the laser driver module is connected to one end of capacitors C31 and C32, and the other ends of capacitors C31 and C32 are grounded.

[0075] The third pin of the driver chip is connected to one end of resistor R26, the other end of resistor R26 is connected to capacitor C28, and the other end of capacitor C28 is grounded.

[0076] The seventh and eighth pins of the driver chip are grounded.

[0077] The second pin of the driver chip is connected to the source (S) of the field-effect transistor Q5.

[0078] In a specific implementation, the timer circuit is as follows: Figure 5 As shown, the timer chip used is NE555DR. This timer chip has a total of eight pins, namely: pin 1, pin 2, pin 3... pin 8. The first pin of this timer chip is the ground pin, the second pin is the trigger pin, the third pin is the output pin, the fourth pin is the reset pin, the fifth pin is the control voltage pin, the sixth pin is the threshold pin, the seventh pin is the discharge pin, and the eighth pin is the power input pin.

[0079] The first pin of the timer chip is grounded.

[0080] The second and sixth pins of the timer chip are shorted and connected to the negative terminal of diode D11, the positive terminal of diode D12, and the positive terminal of capacitor C33; the negative terminal of capacitor C33 is grounded, and the negative terminal of diode D12 is connected to one end of resistor R29.

[0081] The third pin of the timer chip is connected to the gate (G) of the field-effect transistor Q5, and the drain (D) of the field-effect transistor is connected to the output terminal OUT of the charge / discharge module.

[0082] The fourth and eighth pins of the timer chip are shorted and connected to one end of the second switch S2. The other end of the second switch S2 is connected to the resistor R28 and the output terminal OUT of the charge / discharge module.

[0083] The fifth pin of the timer chip is connected to capacitor C34, and the other end of capacitor C34 is grounded.

[0084] The seventh pin of the timer chip is connected to resistors R28 and R29 and the positive terminal of diode D11.

[0085] The timer circuit operates as follows: Touching the first switch S1 activates the boost output OUT of the charging / discharging module. Pressing the second switch S2 provides the input voltage to the timer chip. The timer chip outputs a high-level signal for the set time to the gate of the field-effect transistor (FET). This conducts the FET's drain and source, enabling the driver chip to input a high-level signal, thus starting the laser driver module and driving the laser. After the set time, the microcontroller outputs a low-level signal, and the driver chip stops operating. Devices with wireless charging capabilities can be brought close to the coil terminals J1 and J2, generating electromagnetic induction to charge the device.

[0086] In specific implementation methods, such as Figure 4 As shown, the charging / discharging port is a TYPE-C interface. The TYPE-C circuit structure includes: a 16-pin TYPE-C, which has pins A1, A4, A5, A6, A7, A8, A9, A12, B1, B4, B5, B6, B7, B8, B9, and B12. Pins A1, A12, B1, and B12 are GND ground pins; pins A4, A9, B4, and B9 are VBUS main power supply pins; pins A5 and B5 are configuration channel pins; pins A6 and B6 are DP pins for mobile phone fast charging intelligent identification; pins A7 and B7 are DM pins for mobile phone fast charging intelligent identification; and pins A8 and B8 are auxiliary signal pins.

[0087] The 16-pin Type-C has pins A1, A12, B1, and B12 grounded.

[0088] The A4, A9, B4, and B9 pins of the 16-pin Type-C are connected to the sixteenth and seventeenth pins of the power bank chip.

[0089] The A5 pin of the 16-pin Type-C is connected to the 25th pin of the power bank chip.

[0090] The A6 and B6 pins of the 16-pin Type-C are connected to the twenty-second pin of the power bank chip.

[0091] The A7 and B7 pins of the 16-pin Type-C are connected to the twenty-third pin of the power bank chip.

[0092] In a specific implementation, the power bank's casing contains a ring-shaped metal sheet and multiple small magnets evenly distributed inside. The magnets generate a magnetic field. When the power bank approaches an object with ferromagnetism or magnetic permeability, such as a mobile phone casing or its internal magnetic material, the atoms and molecules inside the object are affected by the magnetic field and rearranged to form corresponding magnetic poles, thus creating a magnetic attraction connection with the power bank's magnets.

[0093] Working principle of this utility model: This invention solves the problem of limited functionality in existing cigarette lighter devices by integrating wireless charging into the lighter itself. It adds the functionality of a wireless power bank, allowing for convenient charging by magnetic attachment to devices without the need for data cables, thus improving charging convenience and enhancing the product's practicality and applicability. Laser cigarette lighting uses a drive circuit to generate a laser beam from the emitter, which is then focused by a shaping lens. This is more energy-efficient than resistance wire heating, and the window glass effectively prevents smoke and dust from entering, reducing damage caused by contamination and extending the product's lifespan. A timer chip also prevents accidental activation. Laser cigarette lighting typically operates in a closed environment, eliminating open flames and enhancing overall safety. The wireless power bank's magnetic attachment makes charging even more convenient; users simply bring a magnetically compatible device close to the power bank for automatic attachment and charging, eliminating the need to search for and plug in data cables. Furthermore, the integrated laser cigarette lighter makes it easy to carry, eliminating the need to carry separate power banks and lighters when needed, reducing the number of items required and improving usability.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cigar lighter having a wireless charging function, characterized by, Includes battery, charging / discharging port, charging / discharging module, laser drive module, and laser; The battery and the charging / discharging port are both connected to the charging / discharging module. The output terminal of the laser drive module is connected to the laser. The output terminal of the charging / discharging module is connected to the input terminal of the laser driving module; The charging and discharging module is also connected to a wireless charging H-bridge drive circuit. The wireless charging H-bridge drive circuit includes an N+P channel enhancement-mode MOSFET chip, which is connected to the wireless charging induction coil.

2. The cigarette lighter with wireless charging function according to claim 1, characterized in that, The output terminal of the charging and discharging module is connected to one end of the second switch, and the other end of the second switch is connected to the timer circuit.

3. A cigarette lighter device with wireless charging function as described in claim 2, characterized in that, The timer circuit includes a timer chip, which has a total of eight pins: pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, and pin 8. The first pin is a ground pin, the second pin is a trigger pin, the third pin is an output pin, the fourth pin is a reset pin, the fifth pin is a control voltage pin, the sixth pin is a threshold pin, the seventh pin is a discharge pin, and the eighth pin is a power input pin.

4. The cigarette lighter with wireless charging function according to claim 1, wherein, The charging and discharging module is connected to one end of the first switch, and the other end of the first switch is grounded.

5. A cigarette lighter device with wireless charging function as described in claim 1, characterized in that, The charging and discharging module integrates a USB C input and output identification interface.

6. A cigarette lighter device with wireless charging function as described in claim 1, characterized in that, The number of N+P channel enhancement-mode field-effect transistor chips is two; the N+P channel enhancement-mode field-effect transistor chips have a total of eight pins, namely the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and the eighth pin; The first and third pins are the source, the second and fourth pins are the gate, and the fifth, sixth, seventh, and eighth pins are the drain.

7. The cigarette lighter with wireless charging function according to claim 1, wherein, The charging and discharging module includes a mobile power chip, which is connected to a battery protection chip.

8. The cigarette lighter with wireless charging function according to claim 7, wherein, The power bank chip is connected to the indicator light.

9. The cigarette lighter with wireless charging function according to claim 1, wherein, An inductor is provided between the output terminal of the laser driving module and the laser.

10. The cigarette lighter with wireless charging function according to claim 1, wherein, The laser driving module includes a driving chip, which has a total of nine pins; These are pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, and pin 9, respectively. The first pin is a feedback pin, the second pin is an enable pin, the third pin is a compensation pin, the fourth pin is a power supply voltage pin, the fifth and sixth pins are switching pins, the seventh and eighth pins are ground terminals, and the ninth pin is a heat dissipation pin.

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