CN201043690Y

CN201043690Y - Constantly illuminating mine lamp

Info

Publication number: CN201043690Y
Application number: CNU2007201180488U
Authority: CN
Inventors: 邹日南; 杨国文
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-12
Filing date: 2007-01-12
Publication date: 2008-04-02
Anticipated expiration: 2017-01-12

Abstract

The utility model provides a constant bright safety lamp and mainly consists of a lithium ion storage battery BT1, an ICU1, a resistance R1, a resistance R2, a resistance R3, a resistance R4, an inductance L1, a capacitance C1, a MOSFETQ2, a MOSFETQ3, a switch S1, a light emitting diode D1, a light emitting diode D2, a light emitting diode D3, a light emitting diode D4, a light emitting diode D5, a light emitting diode D6 and a light emitting diode D7. The safety lamp is arranged in a lamp cap of a safety lamp shell and manages discharge so that brightness of the light emitting diode keeps constant from turning on to turning off and capacity of the lithium ion storage battery BT1 can be fully and effectively released while saving resources, extending service life of the light emitting diode (LED) of the safety lamp and widening the effective working voltage range of the lithium ion storage battery BT1.

Description

Can permanent bright mine lamp

Technical field

The utility model relates to a kind of mine lamp, especially a kind of can the cell voltage of wide input range be stabilized in predetermined value very much can permanent bright mine lamp.

Background technology

Continuous progress along with science and technology, the LED lamp has obtained development fast, the lighting field that is widely used in all kinds of environment, mine career field particularly, but any drive circuit of not employing that the LED of existing LED mine lamp has, this just causes does not have the LED of drive circuit mine lamp, because of voltage and electric current instability burn out LED easily, and the brightness of LED also can slowly be become by superbright with the decline of cell voltage and not work, an only employing constant current that has is the type of drive of constant voltage not, same LED can occur by bright slowly to dark process, more than the mine lamp of two kinds of situations all can more and more come with the decline of cell voltage secretly, do not see to the end, just brightness is non-constant, angle from the energy, along with miner light storage battery voltage descends, when the brightness of lamp became not enough the illumination, remaining electric energy was invalid, waste energy like this, also be unfavorable for miner's safe handling in addition.

Summary of the invention

The purpose of this utility model is a kind of addressing the above problem of development, dependable performance has the circuit that constant pressure and flow was pressed and exported to automatic lifting, and discharge is managed, realize that the LED mine lamp is constant from the lamp of the lighting a lamp brightness constancy that goes out, make battery energy release in full force and effect can permanent bright mine lamp.

The circuit engineering scheme that the utility model is taked is as follows: drive circuit mainly is made up of ICU1, inductance L 1, light emitting diode D1, resistance R 1, resistance R 2 and capacitor C 1, wherein, ICU1 comprises A, B, four MOSFET of C, D and E controller, is an integrated device.

A, B, E controller and inductance L 1 are formed reduction voltage circuit, when the voltage of input is higher than output, sends signal controlling A pipe by the E controller and make switching tube, and the B pipe is equivalent to diode as afterflow, passes through inductance L 1 energy storage again, forms step-down.

C, D, E controller and inductance L 1 are formed booster circuit, when the voltage of input is lower than output, sends signal controlling C pipe by the E controller and make switching tube, and the D pipe is equivalent to diode as afterflow, passes through inductance L 1 energy storage again, and formation is boosted.

E controller, resistance R 1, resistance R 2 and light emitting diode D1 form output constant pressure and flow circuit, when the overtension on the light emitting diode D1 or cross and to send feedback signal when low, send the above-mentioned step-up/step-down circuit of instruction control through the E controller, reach constant voltage, voltage by resistance R 1 and resistance R 2 generations, feed back to the E controller and compare processing, send the above-mentioned step-up/step-down circuit of instruction control through the E controller again, reach constant current, regulate the big I of resistance of resistance R 1 and resistance R 2 and set different constant current value.

The battery of mine lamp is through behind the foregoing circuit, and battery operated voltage range is widened to 2V-5V effective, and the LED of output constant voltage electric current supply lamp holder makes LED be operated in normal condition always, and it is permanent bright that mine lamp keeps, and can make the energy release in full force and effect of battery.

This reality is novel to have following advantage:

1,, mine lamp is gone out on the lamp of lighting a lamp keep permanent bright always via enforcement of the present utility model.

2,, make the release in full force and effect of the capacity energy 100% of battery, energy savings via enforcement of the present utility model.

3,, can effectively prolong the LED service life of mine lamp via enforcement of the present utility model.

4,, can effectively widen the effective work of battery voltage range via enforcement of the present utility model.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is a drive circuit schematic diagram of the present utility model.

Fig. 2 is the circuit diagram of the utility model embodiment one.

The specific embodiment

Circuit of the present utility model shown in the figure is mainly by lithium-ions battery BT1, ICU1, resistance R 1, resistance R 2, resistance R 3, resistance R 4, inductance L 1, capacitor C 1, MOSFET Q2, MOSFET Q3, switch S 1, light emitting diode D1, light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, form with light emitting diode D7, wherein, light emitting diode D1 is a main light source, light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, with light emitting diode D7 be secondary light source, when switch S 1 is connected the grid of MOSFET Q2, MOSFET Q2 conducting, the grid of MOSFET Q3 makes not conducting of MOSFET Q3 by resistance R 3 ground connection, ICU1 sets output current by the resistance that detects resistance R 3, the voltage of lithium-ions battery BT1 is through ICU1, inductance L 1 is carried out after the buck and light emitting diode D1, MOSFET Q2 forms the loop, form the constant pressure and flow discharge at light emitting diode D1 two ends, the king light light emitting diode D1 of mine lamp is luminous with constant luminance, when switch S 1 is connected the grid of MOSFET Q3, MOSFET Q3 conducting, the grid of MOSFET Q2 is by resistance R 4 ground connection, not conducting of MOSFET Q2, ICU1 sets output current by the resistance that detects resistance R 1, the voltage of lithium-ions battery BT1 is through ICU1, inductance L 1 is carried out after the buck and light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7, MOSFETQ3 forms the loop, at light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7 two ends form the constant pressure and flow discharge, the auxilliary lamp light emitting diode D2 of mine lamp, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7 is simultaneously luminous with constant luminance, reaches purpose of design.

The utility model circuit is simple, and it is few, practical to form components and parts, meets miner and requirements of saving energy, and circuit has been easy to just realize the permanent bright illumination and the energy savings of the two light sources of mine lamp.

Claims

1. can permanent bright mine lamp, circuit mainly is made up of lithium-ions battery BT1 and drive circuit, it is characterized in that: drive circuit mainly is made up of ICU1, inductance L 1, light emitting diode D1, resistance R 1, resistance R 2 and capacitor C 1, wherein, ICU1 comprises A, B, four MOSFET of C, D and E controller, be an integrated device, comprise reduction voltage circuit, booster circuit and output constant pressure and flow circuit, lithium-ions battery BT1 connects reduction voltage circuit, booster circuit and output constant pressure and flow circuit in turn.

2. according to claim 1 can permanent bright mine lamp, it is characterized in that described reduction voltage circuit is made up of A, B, E controller and inductance L 1.

3. according to claim 1 can permanent bright mine lamp, it is characterized in that described booster circuit is made up of C, D, E controller and inductance L 1.

4. according to claim 1 can permanent bright mine lamp, it is characterized in that described output constant pressure and flow circuit is made up of E controller, resistance R 1, resistance R 2 and light emitting diode D1.