LIGHTER

A lighter, including: a casing, a turnable cap, a circuit board, a transformer, a power supply, switches, circuits, a power socket, an ignition chamber, and a pair of discharging needles. The circuit board is arranged inside the casing, and the discharging needles are disposed on the top of the ignition chamber. The circuits are disposed on the circuit board and include an oscillating circuit, a DC boost converter circuit, a lighting circuit, and a counterfeit money detector circuit. An ignition switch and a toggle switch are disposed on one side of the casing. The bottom of the casing is provided with a lighting lamp and a counterfeit money detector lamp.

DETAILED DESCRIPTION OF THE EMBODIMENTS

For further illustrating the invention, experiments detailing a lighter are described below. It should be noted that the following examples are intended to describe and not to limit the invention.

As shown inFIGS. 1-2, a lighter comprises a casing8. An ignition switch11is disposed on an upper side of the casing8. A toggle switch10is disposed on a lower part of the casing8. The toggle switch10is a two-pole three-throw switch. An ignition chamber2is disposed inside an upper part of the casing, and a top of the lighter is provided with a pair of high voltage discharging needles12connected to the ignition chamber. Circuits are disposed inside the casing8on a lower part of the circuit board, and the circuits comprise an oscillating circuit3, a DC/DC boost converter circuit4, a lighting circuit7, and a counterfeit money detector circuit6. A bottom of the casing8is provided with an LED white lamp D3for lightening, an LED purple lamp D4for money detection, and a power socket5. A DC power supply9is disposed in a lower part inside an opposite of the casing8. The casing8is provided with a turnable cap1for protecting the pair of high voltage discharging needles12connected to the top of the casing inside the ignition chamber2from being polluted and damaged. The pair of high voltage discharging needles12is disposed on a high temperature and high voltage-resistant electronic ceramic bracket13.

As shown inFIG. 3, the oscillating circuit3is a non-sinusoidal self-excited intermittent oscillator formed by connecting a NPN type crystal triode G, a crystal diode D1, a first resistor R1, a third electrolytic capacitor C3, an anion transformer B, a first switch K1. A collector of the crystal triode G is connected to one end of a primary coil N1of the transformer B; and the other end of the primary coil N1is connected to one end of the first resistor R1, a positive electrode of the direct power supply9, a positive terminal of the third electrolytic capacitor C3, one end of the second resistor R2, one end of the third resistor R3, a second pin IC—2and a third pin IC—3of a integrated circuit IC, one end of a storage inductor L, and a first contact point K4-1of a fourth switch K4. One end of a secondary coil N2of the transformer B is connected to a base electrode of the crystal triode G; and the other end of the secondary coil N2is connected to a series connection point between the first resistor R1and the crystal diode D1via the first switch K1. The other end of the crystal diode D1is connected to an emitter of the crystal triode G, a negative terminal of the third electrolytic capacitor C3, a negative electrode of the direct power supply9, a third switch K3, one end of the fourth resistor R4, a first pint T−1of a switching tube T, a fifth pin IC−5of the integrated circuit IC, a negative terminal of a first electrolytic capacitor C1, a negative terminal of the power socket, and a normally closed contact14of the negative terminal of the power socket, and is grounded. The normally closed contact14of the negative terminal of the power socket5is connected to the second switch K2. The third resistor R3is in series connection with the LED purple lamp for money detection, and the third switch K3, and is then connected to the negative electrode of the DC current. The other end of the fourth resistor R4is connected to the first pin IC−1of the integrated circuit, one end of the fifth resistor R5, and one end of the second capacitor C2. The other end of the fifth resistor R5is connected to the other end of the second capacitor C2, the positive terminal of the first electrolytic capacitor C1, one end of the crystal diode D2, a second contact point K4-2of the fourth switch K4. The other end of the crystal diode D2is connected to the other end of the storage inductor L, a third pin T−3of the switching tube T. A second pin T−2of the switching tube T is connected to a fourth pin IC−4of the integrated circuit IC.

When using the lighter of the invention, turn up the turnable cap1arranged on the upper part of the casing, so that the first switch K1is connected, the oscillator works, and a high frequency oscillation having a frequency of 50 kHz is produced. Coupled by the anion transformer B, two ends of the tertiary coil N3produce a high frequent high voltage which is then arc discharged by the pair of high voltage discharging needles inside the ignition chamber. Flame produced from the discharge is used to ignite combustible materials. When the toggle switch10is turned upward, the second switch K2and the first contact point K4-1of the fourth switch K4are connected, thus, the lighting circuit is connected; and LED white light is lightened and functions as a lighting source. When the DC power supply of the invention has a low energy and requires to be charged, a plug of the external DC power charger, a solar power charger, or a computer USB interface is inserted into the power socket5through a conversion line; thus, the normally closed contact of the negative terminal of the power socket5is disconnected, the lighting circuit7is disconnected during the power charging, while the negative terminal of the power socket5is connected, so that the DC power supply9is connected in the charging circuit for obtaining power from an external power charger.

When the toggle switch is turned downward, the third switch K3is closed, the counterfeit money detector circuit is connected, and the LED purple light for money detection is lightened. When the toggle switch is turned at the middle position, the second contact point K4-2of the fourth switch K4is connected and the DC/DC boost converter circuit works. The DC/DC boost converter circuit is formed by connecting the integrated circuit IC, the switching tube T, the fourth resistor R4, the fifth resistor R5, the first capacitor C1, the second capacitor C2, the crystal diode D2, and the storage inductor L. The DC voltage of the DC power supply9passes through the integrated circuit IC, and outputs a control signal from the fourth pin of the integrated circuit IC.

When the control signal is a high level, the input of the second pin T−2of the switching tube T is a high level. The switching tube T is conducted, and the energy enters through the DC power supply9, and is stored in the inductor L. Because when the switching tube conducted, the saturated voltage drop is very small, the second diode D2is reverse-biased and cut off, and the energy stored in the first filter capacitor C1is discharged to the load. When the control signal is a low level, the input of the second pin T−2of the switching tube T is a low level, the switching tube is cut off. As the current break does not exist in the inductor L, the induced voltage prevents the current from decreasing, the polarity of the induced voltage is negative on the upper and positive on the lower, the second diode D2is conducted. The energy stored in the inductor L passes through the second diode D2for charging the first filter capacitor C1while supplying the load. When the switch frequency and the duty ratio of the switching tube are properly adjusted, a DC voltage output that is stable and higher than the voltage of the DC power supply9is produced between the ground and the second contact point K4-2of the output end of the fourth switch K4. Thus, the lighter of the invention is capable of charging cell phones or other digital products suitable for cell phone batteries through the power socket5and conversion lines. The DC/DC boost converter circuit works, the DC voltage after voltage boosting is used to charge the cell phone or other digital products that are applicable to battery of cell phone by the second contact point K4-2of the fourth switch. In the open air, the DC power supply of the lighter of the invention can be charged by using the power socket5and the solar energy power charger.

In the specifications, if no special instructions, data ranges disclosed herein include the initial and terminal of the dada rather than exclude them.