CN201180915Y

CN201180915Y - Hand-operated multifunctional flashlight

Info

Publication number: CN201180915Y
Application number: CNU2008200466069U
Authority: CN
Inventors: 侯协波
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-18
Filing date: 2008-04-18
Publication date: 2009-01-14
Anticipated expiration: 2018-04-18

Abstract

The utility model relates to a hand formula multifunctional electric torch through artifical mode electricity generation, including the casing, its characteristics are: the hand crank partially extends out of the shell and is in transmission connection with the generator through a transmission in the shell, the output end of the generator, the rectifying circuit, the voltage stabilizing filter circuit and the charging protection circuit are sequentially and electrically connected, and the output end of the charging protection circuit, the power storage unit, the lighting control circuit and the light emitting unit are sequentially and electrically connected; the output end of the charging protection circuit is also electrically connected with a charging output port on a shell, and the charging protection circuit further comprises a connecting wire. The utility model discloses can be through manpower electricity generation, charge repeatedly built-in lithium cell, and the lithium cell passes through control switch and current-limiting circuit to the power supply of LED light-emitting component, makes LED luminous, supplies the illumination to use, and on the other hand can also supply emergent use of charging to the electrical apparatus for other various models charges.

Description

Hand-operated multifunctional flashlight

Technical Field

The utility model relates to a hand-operated multifunctional flashlight generating electricity through a manual mode.

Background

At present, the illumination flashlight commonly used by the public generally uses an alkaline zinc-manganese battery or a nickel-chromium battery as a power source, the battery products have the defects of short service life, incapability of recycling, environmental pollution and the like, and the adopted tungsten filament light-emitting bulb has the defects of large energy consumption, low efficiency, short service life and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hand formula multifunctional electric torch need not to use the battery, as long as just can realize lasting illumination and emergency charging through the manpower.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a hand formula multifunctional electric torch, includes the casing, its characterized in that: the hand crank is partially extended out of the shell and is in transmission connection with the generator through a speed changer in the shell;

the output of the generator is converted into stable direct current through a rectifying circuit and a voltage stabilizing filter circuit, then the charging protection circuit charges the electric storage unit, and the electric storage unit supplies power to the light-emitting unit through the lighting control circuit.

The charging protection circuit is also connected with a charging output port on a shell, a connecting wire is matched with the electric output port, one end of the connecting wire is a charging input connector matched with the charging output port, and the other end of the connecting wire is at least one charging output connector. The utility model discloses can be through manpower electricity generation, charge electric power storage unit (built-in lithium cell) repeatedly, and electric power storage unit passes through control switch and current-limiting circuit to the power supply of LED light-emitting component, makes LED give out light, supplies the illumination to use, and on the other hand can also supply the use of charging promptly to charge for the electrical apparatus of other various models.

Drawings

FIG. 1 is a logic block diagram of the circuit of the present invention;

fig. 2 is a schematic circuit diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

as shown in fig. 1, the technical scheme of the utility model is that generator M1 and change gear group are integrated to have in the casing of flashlight, utilize the manpower to wave the hand crank on the flashlight, enlarge the rotational speed to the rotational speed that accords with the best generating efficiency of generator through change gear group, drive the generator electricity generation, the output current of generator flows through rectifier circuit in proper order, steady voltage filter circuit, and the protection circuit that charges, the electric current that generates to accord with the standard of charging, can charge to the built-in formula environmental protection lithium cell that can charge that constitutes the electric power storage unit on the one hand, the lithium cell drives different LED light emitting component work respectively through conventional lighting control circuit (generally including control switch and current-limiting circuit), thereby can produce the light intensity that accords with different environment requirements, supply the illumination to use.

On the other hand, the charging current passes through the charging output port DC on the shell, and can charge other charging electrical appliances of various types, such as mobile phones, MP3, digital cameras and the like of various types through the universal charging connecting wire, for example, when the external charging is needed, the connection point in the output port can disconnect the charging of the built-in lithium battery, so that the output current reaches the maximum.

As shown in fig. 2, the rectifier circuit is a bridge rectifier circuit and is composed of diodes D1 to D4, and the voltage stabilizing filter circuit is composed of a filter capacitor C1 and a first voltage stabilizing diode D9, both of which are connected in parallel with the output end of the bridge rectifier circuit.

The charging protection circuit comprises a triode 8050, the base electrode of the triode is connected with the positive electrode output end of the rectifying circuit through a shunt resistor R1 and is grounded through a second voltage stabilizing diode D5, the collector electrode of the triode is connected with the positive electrode output end of the rectifying circuit, the emitter electrode of the triode is respectively connected with the anodes of the LED1 to the LED4 in series through a control switch SW-DPDT, a current limiting resistor R2, a current limiting resistor R3 and a current limiting resistor R4, the cathode of the LED1 to the LED4 is grounded, the emitter electrode of the triode is simultaneously connected with the anode of the lithium battery, and the cathode of the lithium battery is grounded; the positive electrode of the charging output port is connected with the collector electrode of the triode, and the negative electrode of the port is grounded.

Claims

1. The utility model provides a hand formula multifunctional electric torch, includes the casing, its characterized in that: the hand crank partially extends out of the shell and is in transmission connection with the generator through a speed changer in the shell; the output of the generator is converted into stable direct current through the rectifying circuit and the voltage stabilizing filter circuit, then the charging protection circuit charges the electric storage unit, and the electric storage unit supplies power to the light emitting unit through the lighting control circuit.

2. A hand operated multi-function flashlight as claimed in claim 1, wherein: the charging protection circuit is also connected with a charging output port on a shell, a connecting wire is matched with the electric output port, one end of the connecting wire is a charging input connector matched with the charging output port, and the other end of the connecting wire is at least one charging output connector.

3. The hand operated multifunctional flashlight of claim 1, wherein: wherein the electricity storage unit is a lithium battery, and the light emitting unit is an LED.

4. A hand operated multi-function flashlight as claimed in claim 1, wherein: wherein the transmission is a speed change gear set.

5. A hand-operated multifunctional flashlight as claimed in any one of claims 1 to 4, wherein: the rectifier circuit is a bridge rectifier circuit, and the voltage-stabilizing filter circuit is composed of a filter capacitor and a first voltage-stabilizing diode, and the filter capacitor and the first voltage-stabilizing diode are both connected with the output end of the bridge rectifier circuit in parallel.

6. A hand operated multi-function flashlight as claimed in any one of claims 1 to 4, wherein: the charging protection circuit comprises a triode, the base electrode of the triode is connected with the positive electrode output end of the rectifying circuit through a shunt resistor and is grounded through a second voltage stabilizing diode, the collector electrode of the triode is connected with the positive electrode output end of the rectifying circuit, the emitter electrode of the triode is connected with the control switch, the current limiting resistor and the anode of the LED in series, the cathode of the LED is grounded, the emitter electrode of the triode is connected with the anode of the lithium battery, and the cathode of the lithium battery is grounded; the positive electrode of the charging output port is connected with the collector electrode of the triode, and the negative electrode of the port is grounded.