CN205196006U - Flashlight with novel drive circuit - Google Patents

Abstract

The embodiment of the utility model discloses flashlight with novel drive circuit, magnetic ring primary's end of the same name and the positive pole that magnetic ring secondary coil different name end connect the battery jointly among the drive circuit, magnetic ring primary's different name end connects NPN type triode T1 -1's base through resistance R1 -1, magnetic ring secondary coil's termination NPN type triode T1 -1's of the same name collecting electrode, NPN type triode T1 -1's projecting pole connects the negative pole of battery through the button, diode D1 -1's positive pole connects NPN type triode T1 -1's collecting electrode, diode D1 -1's negative pole connects emitting diode D2 -1's positive pole, emitting diode D2 -1's negative pole and NPN type triode T1 -1's projecting pole are connected, electric capacity C1 -1 and emitting diode D2 -1 connect. The utility model discloses flashlight wholeness ability has been improved effectively for the product is more practical, can satisfy consumer's individualized demand from this betterly.

Description

A kind of flashlight with new drive circuit

Technical field

The utility model relates to portable electronic illuminations, particularly relates to a kind of novel flashlight.

Background technology

Flashlight (Torch) is a kind of portable electronic illuminations, and its typical structure comprises bulb via dry cell power supply and focusing mirror, and has for hand-held handle type shell.The drive circuit of common flashlight is simple series circuit, and structure is too simple, and function is too single; In addition, needed often to change battery by dry cell power supply, it is convenient not thus to use; In addition, battery compartment body is furnished with comparatively long lead, point in electrical contact on battery compartment bonnet is connected on the battery electrode interface of battery compartment front end by this wire, and wire used and easily breaks long afterwards and cause battery to power, and the reliability of battery fastening structure is not ideal enough.Because existing flashlight can not meet the individual demand of consumer well, be therefore necessary to be improved.

Utility model content

For the defect that prior art exists, the object of the utility model embodiment is to provide a kind of novel flashlight, to improve the properties of product of flashlight, meets the individual demand of consumer.

For solving above technical problem, the utility model embodiment provides a kind of flashlight with new drive circuit, comprise flashlight main body and charging device, flashlight main body has the drive circuit of being powered by Rechargeable battery, charging device has the charging circuit that can be battery charging, in this drive circuit, the Same Name of Ends of magnet ring primary coil and magnet ring secondary coil different name end connect the positive pole of battery jointly, the different name end of magnet ring primary coil connects the base stage of NPN type triode T1-1 through resistance R1-1, the collector electrode of the termination NPN type triode T1-1 of the same name of magnet ring secondary coil, the emitter of NPN type triode T1-1 connects the negative pole of battery through button, the anode of diode D1-1 connects the collector electrode of NPN type triode T1-1, the anode of the negative electrode sending and receiving optical diode D2-1 of diode D1-1, the negative electrode of light-emitting diode D2-1 is connected with the emitter of NPN type triode T1-1, electric capacity C1-1 and light-emitting diode D2-1 also connects.

Compared with prior art, flashlight of the present utility model optimizes driving circuit structure, and properties of product are even more ideal; In addition, this flashlight adopts Rechargeable battery to power, and can be charged, without the need to often changing battery by the battery charger of flashlight easily; By the battery compartment body conducting of metal material between battery electrode interface and battery compartment bonnet, avoid the problem that plain conductor easily fractures, improve the reliability of battery fastening structure; These measures effectively improve flashlight overall performance, make product more practical, can meet the individual demand of consumer thus preferably.

Accompanying drawing explanation

Fig. 1 is the drive circuit figure of the utility model flashlight;

Fig. 2 is the charging circuit figure of the utility model flashlight;

Fig. 3 is the battery fastening structure schematic diagram of the utility model flashlight.

Embodiment

In order to understand know-why and the course of work of the utility model embodiment better, come to be described in detail the utility model further below in conjunction with drawings and the specific embodiments.

Flashlight of the present utility model comprises flashlight main body and charging device: flashlight main body has drive circuit, and this drive circuit is powered by being installed on the intrinsic Rechargeable battery of battery compartment, to complete the basic function of flashlight; Charging device can be separated with flashlight main body, and the charging circuit of this charging device is that the Rechargeable battery of drive circuit charges.

It is noted that the circuit structure that the utility model only relates in flashlight improves, the conventional techniques means that other mechanical part in this flashlight except battery fastening structure can adopt the art known, do not launch explanation at this.Be described below in conjunction with the drive circuit of accompanying drawing flashlight, charging circuit and battery fastening structure.

See Fig. 1, be the drive circuit figure of the utility model flashlight.The drive circuit of this flashlight has been powered by battery BT the basic function of flashlight, described drive circuit comprises Rechargeable battery BT, magnet ring L1-1, NPN type triode T1-1, diode D1-1, light-emitting diode D2-1, electric capacity C1-1, resistance R1-1 and button SW, particular circuit configurations is: it (is Rechargeable battery that the Same Name of Ends of magnet ring L1-1 primary coil and magnet ring L1-1 secondary coil different name end meet battery BT jointly, be preferably nickel-cadmium cell) positive pole, the different name end of magnet ring L1-1 primary coil connects the base stage of NPN type triode T1-1 (being preferably 8050 or 9014) through resistance R1-1, the collector electrode of the termination NPN type triode T1-1 of the same name of magnet ring L1-1 secondary coil, the emitter of NPN type triode T1-1 connects the negative pole of battery BT through button SW, the anode of diode D1-1 (being preferably 4937 or 107) connects the collector electrode of NPN type triode T1-1, the anode of the negative electrode sending and receiving optical diode D2-1 (light source as flashlight) of diode D1-1, the negative electrode of light-emitting diode D2-1 (light source as flashlight) is connected with the emitter of NPN type triode T1-1, electric capacity C1-1 and light-emitting diode D2-1 also connects.

Press the button SW, this drive circuit is connected, and the light-emitting diode D2-1 as flashlight light source lights; Again press the button SW, this drive circuit disconnects, and the light-emitting diode D2-1 as the light source of flashlight extinguishes.The less element of this drive circuit makes the flashlight of LED, improves the performance of flashlight product, has lower-cost advantage.

See Fig. 2, be the charging circuit figure of the utility model flashlight.Battery BT in the drive circuit of the charging circuit flashlight of this flashlight charges, described charging circuit comprises the triode T1-2 of NPN type, the triode T2-2 of positive-negative-positive, diode D1-2, diode D2-2, resistance R1-2, resistance R2-2 and light-emitting diode D3-2, particular circuit configurations is: the collector electrode of triode T1-2 meets outside power positive end VC (12 ~ 16V), the base stage of triode T1-2 is connected with the negative electrode of diode D2-2, the anode of diode D2-2 is connected with the negative electrode of diode D1-2, the anode of diode D1-2 is connected to power positive end VC, the emitter of triode T1-2 is connected with the anode of light-emitting diode D3-2, the negative electrode of light-emitting diode D3-2 is connected with charging inlet anode A, battery BT holds between GND (0V) and charges with being positioned at charging inlet anode A and charging inlet, the emitter of triode T2-2 is through the base stage of resistance R2-2 connecting triode T1-2, and the collector electrode of triode T2-2 is connected to ground, accesses resistance R1-2 between the base stage of triode T2-2 and charging inlet anode A.

In the present embodiment battery charger, form live part by diode D1-2, D2-2, resistance R1-2, R2-2 and triode T1-2, triode T2 and resistance R3 forms charge protector.When remaining battery voltage is lower than 0.6V, triode T2-2 conducting, triode T1-2 also conducting, electric current charges the battery through resistance T1-2, triode T1-2, and light-emitting diode D3-2 is bright, represents that charging is normal.If when battery pole back connection, this triode T2 base stage is negative potential, and triode T2-2 ends, and the base potential of triode T1-2 raises, and triode T1-2 is closed, and can not charge to battery thus, now light-emitting diode does not work, and represents when battery pole back connection.

See Fig. 3, it is the battery fastening structure schematic diagram of the utility model flashlight.In this battery fastening structure; battery (group) BT loads in metal battery storehouse body 50; the front end warehouse of battery compartment body 50 is connected to battery cathode wiring 10; in the storehouse, front end of battery compartment body 50, nonmetal protective cap 40 is set; the anode contact of protective cap 40 connects the metal tabs of anode line 20 by metal spring (Compress Spring) 30, the rear end of battery compartment body 50 can be threaded into metal battery storehouse bonnet 60.

When screw battery compartment bonnet 60 on battery compartment body 50 time; the positive pole of battery is by the anode contact on protective cap 40, spring 30 and anode line 20 conducting; the negative pole of battery is by battery compartment bonnet 60, battery compartment body 50 and battery cathode line 10 conducting; because anode line 20 and battery cathode line 10 are connected on the positive and negative interface of power supply of circuit board (scheming not shown) of drive circuit; therefore battery can be made together with load (as LED light source) to form closed-loop path, finally for load provides corresponding operating voltage.

Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection range of the present utility model should define with the utility model claim is as the criterion.

Claims (1)

1. one kind has the flashlight of new drive circuit, it is characterized in that, comprise flashlight main body and charging device, flashlight main body has the drive circuit of being powered by Rechargeable battery, charging device has the charging circuit that can be battery charging, it is characterized in that, in this drive circuit, the Same Name of Ends of magnet ring primary coil and magnet ring secondary coil different name end connect the positive pole of battery jointly, the different name end of magnet ring primary coil connects the base stage of NPN type triode T1-1 through resistance R1-1, the collector electrode of the termination NPN type triode T1-1 of the same name of magnet ring secondary coil, the emitter of NPN type triode T1-1 connects the negative pole of battery through button, the anode of diode D1-1 connects the collector electrode of NPN type triode T1-1, the anode of the negative electrode sending and receiving optical diode D2-1 of diode D1-1, the negative electrode of light-emitting diode D2-1 is connected with the emitter of NPN type triode T1-1, electric capacity C1-1 and light-emitting diode D2-1 also connects.