Patent Application
20140076879
1. Field of the Invention
The invention relates to a lighter.
2. Description of the Related Art
Typical lighters employ fuel oil or fuel gas as the energy. Potential hazards exist in the process of production, transportation, storage, sale, and use of the lighters. Disadvantages of the lighters are as follows: first, it damages the atmospheric environment; second, harmful gas produced from the ignition enters the respiratory passage of the user, thereby causing damage to the health of the user; third, the fuel oil and the fuel gas are non-renewable energy, resulting in waste. Furthermore, in severe weather, it is inconvenient to use the lighter because the conventional fuel oil and the fuel gas are unable to ignite.
To overcome the safety hazard existing in traditional lighters using fuel oil and fuel gas, prevent the explosion happening in the transportation, improve the atmospheric environment of the ozone layer, lower the consumption of the nonrenewable source, it is one objective of the invention to provide a lighter that has functions of electronic ignition, money detection, and charging, and is safe, environmentally friendly, energy saving, and convenient for use.
To achieve the above objective, in accordance with one embodiment of the invention, there is provided a lighter, comprising: a casing, a turnable cap, a circuit board, a transformer, a power supply, diodes, switches, circuits, a power socket, an ignition chamber, and a pair of high voltage discharging needles. The circuit board is arranged inside the casing, and the discharging needles are disposed on a top of the ignition chamber. The circuits are disposed on the circuit board and comprise 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; a bottom of the casing is provided with a lighting lamp and a counterfeit money detector lamp.
The oscillating circuit comprises a crystal triode, a first crystal diode, a first resistor, a third capacitor, a primary coil and a secondary coil of the transformer; a series connection of the first resistor and the first crystal diode is connected to the power supply in parallel to the third capacitor; a base electrode of the crystal triode is connected to a series connection point between the first resistor and the first crystal diode via the secondary coil and a switch; a collector of the crystal triode is connected to an positive electrode of the power supply, and an emitter of the crystal triode is connected to a negative electrode of the power supply.
The DC boost converter circuit comprises an integrated circuit, a switching tube, a second diode, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, and an inductor. A first pin of the integrated circuits connected to a series connection point between the fourth resistor and the fifth resistor; and the other end of the fourth resistor is connected to the negative electrode of the power supply; the second capacitor is in parallel connection with the fifth resistor; the other end of the fifth resistor is connected to the second diode, the first capacitor, a second contact point of a fourth switch; the other end of the second diode is connected to a third pin of a switching tube, and one end of the inductor; the other end of the inductor is connected to a positive electrode of the power supply; the other end of the first capacitor is connected to the negative electrode of the power supply; a second pin of the switching tube is connected to a fourth pin of the integrated circuit; and a first pin of the switching tube is connected to a fifth pin of the negative electrode of the power supply.
The lighting circuit comprises a third diode, a second resistor, a second switch, and a normally closed contact of a negative terminal of the power socket; a series connection of the third diode and the second resistor is connected to the power supply via the second switch and the normally closed contact of a negative terminal of the power socket.
The counterfeit money detector circuit comprises a fourth diode, a third resistor, and a third switch; the fourth diode, the third resistor, and the third switch are in series connection to the power supply.
The transformer comprises the primary coil, the secondary coil, and a tertiary coil, a ratio of coil turn thereof is N1:N2:N3=1:0.5-0.9:50-70. Two ends of the tertiary coil are connected to the pair of high voltage discharging needles in the ignition chamber, respectively. When the coil turn is changed, the output power of the transformer is improved, and the arc ignition temperature is increased, the combustible material is much easier to be combusted, and the volume of the lighter can be much smaller.
In a class of this embodiment, the power supply is a rechargeable battery.
In a class of this embodiment, the toggle switch is a two-pole three-throw switch. The second switch and a first contact point of the fourth switch are connected if the toggle switch is turned upward, that is, the lighting circuit and circuit of power charger charging for the power supply are connected. The third switch K3 is connected if the toggle switch is turned downward, that is, the counterfeit money detector circuit is connected. The second contact point of the fourth switch is connected if the toggle switch is turned at a middle position, that is, the DC/DC boost converter circuit is connected.
In a class of this embodiment, the ignition switch is a toggle switch or a touching switch.
The power socket cooperates with a conversion plug or a digital line for charging a cell phone or other digital products that is applicable to the battery of a cell phone. The power socket cooperates with a power charger or a solar energy charger for charging the power supply, and the power supply can also be charged by the computer by connecting the two via a USB conversion line. When the first switch is connected, the oscillator works, coupled by the transformer, two ends of the tertiary coil of the transformer produce 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 switch is turned upward, the second switch and the first contact point of the fourth switch are connected, thus, the lighting circuit is connected; and the LED white light is lightened and functions as a lighting source.
When the power supply of the invention is required to be charged, a plug of a external power charger or a computer USB interface is inserted into the power socket of the invention through the conversion line, thus, the negative electrode of the power supply of the invention inside the power socket is connected to the negative electrode of the external power supply, the normally closed contact of the negative terminal of the power socket is connected to the second switch of the lighting circuit; whereas the normally closed contact of the negative terminal of the power socket is bounced open by the insertion of the plug of the charger, thus, when the power supply of the invention is charged, the lighting circuit is disconnected.
When the toggle switch is turned downward, the third switch is closed, the counterfeit money detector circuit is connected, and the LED purple light for money detection is lightened, the LED purple light is used as the light source for money detection. When the toggle switch is turned at the middle position, the second contact point of the fourth switch is connected, 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 is applicable to battery of a cell phone by the second contact point of the fourth switch. In the open air, the DC power supply of the lighter of the invention can be charged by using the power socket and the solar energy power charger.
In a class of this embodiment, the third diode is an LED white tube, and the fourth diode is an LED purple tube.
Advantages of the invention are as follows:
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 in
As shown in
When using the lighter of the invention, turn up the turnable cap 1 arranged on the upper part of the casing, so that the first switch K1 is 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 N3 produce 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 switch 10 is turned upward, the second switch K2 and the first contact point K4-1 of the fourth switch K4 are 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 socket 5 through a conversion line; thus, the normally closed contact of the negative terminal of the power socket 5 is disconnected, the lighting circuit 7 is disconnected during the power charging, while the negative terminal of the power socket 5 is connected, so that the DC power supply 9 is connected in the charging circuit for obtaining power from an external power charger.
When the toggle switch is turned downward, the third switch K3 is 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 K4-2 of the fourth switch K4 is 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 supply 9 passes 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−2 of the switching tube T is a high level. The switching tube T is conducted, and the energy enters through the DC power supply 9, and is stored in the inductor L. Because when the switching tube conducted, the saturated voltage drop is very small, the second diode D2 is reverse-biased and cut off, and the energy stored in the first filter capacitor C1 is discharged to the load. When the control signal is a low level, the input of the second pin T−2 of 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 D2 is conducted. The energy stored in the inductor L passes through the second diode D2 for charging the first filter capacitor C1 while 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 supply 9 is produced between the ground and the second contact point K4-2 of 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 socket 5 and 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 K4-2 of the fourth switch. In the open air, the DC power supply of the lighter of the invention can be charged by using the power socket 5 and 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.
While particular embodiments of the invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects, and therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201120185957.X | Jun 2011 | CN | national |
This application is a continuation-in-part of International Patent Application No. PCT/CN2012/076021 with an international filing date of May 24, 2012, designating the United States, now pending, and further claims priority benefits to Chinese Patent Application No. 201120185957.X filed Jun. 1, 2011. The contents of all of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference. Inquiries from the public to applicants or assignees concerning this document or the related applications should be directed to: Matthias Scholl P.C., Attn.: Dr. Matthias Scholl Esq., 14781 Memorial Drive, Suite 1319, Houston, Tex. 77079.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2012/076021 | May 2012 | US |
| Child | 14088430 | US |
