CN103188842A - Miner lamp - Google Patents
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- CN103188842A CN103188842A CN2011104530056A CN201110453005A CN103188842A CN 103188842 A CN103188842 A CN 103188842A CN 2011104530056 A CN2011104530056 A CN 2011104530056A CN 201110453005 A CN201110453005 A CN 201110453005A CN 103188842 A CN103188842 A CN 103188842A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a miner lamp which comprises a battery box, a connecting cable and a lamp holder. A power circuit is arranged in the battery box. The lamp holder comprises a control circuit board and a light source connected with the control circuit board. The power circuit is connected with the control circuit board through the connecting cable to supply power for the light source and then controls the light source to give out light. The control circuit board comprises a switching conversion circuit and a light source control circuit. When the switching conversion circuit is in a power-off state, the light source control circuit controls the light source to be powered off. When the switching conversion circuit is in a strong-light state, the light source control circuit controls the light source to give out strong light. When the switching conversion circuit is in a weak-light state, the light source control circuit controls the light source to give out weak light. Through setting of the power-off state, the strong-light state and the weak-light state, the illumination of the light source can be adjusted according to requirements of different light intensities. Consequently, on the condition of ensuring that sufficient light intensity required by work can be provided, the discharge time of batteries is prolonged.
Description
Technical field
The present invention relates to field of light fittings, relate in particular to a kind of mine lamp.
Background technology
Mine lamp is a kind of lamp that uses under mine, adopts the form of split type safety cap lamp usually, can be fixed on the safety cap, also can carry on hand.Mine lamp can comprise lamp holder, battery case and stube cable line.Generally adorning chargeable lithium cell in the battery case; Be provided with circuit board, light source and reflective mirror in the lamp holder, generally include light source driving circuit and charging control circuit on the circuit board, be used for the control light source, light source is generally LED, and the lamp holder outer surface is provided with cap and buckles, lamp holder can be fixed on the safety cap, cap is buckled the draw-in groove that the mine lamp charging special use can also be set; Battery case is connected with lamp holder by the stube cable line, thereby gives circuit board and light source power supply in the lamp holder.
In order to alleviate the weight of mine lamp, the capacity of the battery of selecting for use in the battery case is generally less.Like this, if light source sends high light, the discharge time of mine lamp will be very short so, is unsuitable for operation under the long ore deposit; If light source sends the low light level, when needing floodlighting, may influence miner's work because light luminance is not enough.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of mine lamp is provided.Can regulate light intensity, when guaranteeing than the long discharge time, not influence miner's work again because of insufficient light.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of mine lamp, comprise battery case, stube cable line and lamp holder, be provided with power circuit in the described battery case, described lamp holder comprises control circuit board and is connected in the light source of described control circuit board, described power circuit connects described control circuit board by described stube cable line and gives light source power supply, and then controls described light source luminescent, and described control circuit board comprises:
Conversion switch, described conversion switch comprises handover module and for generation of the selective signal generator of selecting signal, the control end of described handover module is connected to selective signal generator, and described handover module is used for switching between off state, high light state and low light level state according to the selection signal that described selective signal generator produces;
Control circuit for light source, described control circuit for light source comprises constant current control module and light source switch, the control end of described constant current control module is connected to the output of described handover module, the output of described constant current control module is connected to the control end of light source switch, and described light source switch and light source are connected between the positive pole and negative pole of power circuit successively; Described constant current control module is used for when described handover module is in off state, controls described light source switch and disconnects; Described constant current control module is used for when described handover module is in the high light state, and described light source switch conducting is controlled in the pulse that output has first duty ratio; Described constant current control module is used for when described handover module is in low light level state, and the pulse that output has second duty ratio control described light source switch conducting, and described second duty ratio is less than described first duty ratio.
Wherein, described handover module comprises the decoding counter, and the control end of described constant current control module comprises switch control pin and current sample input pin;
The clock pin of described decoding counter is connected to described selective signal generator, the shutoff of described decoding counter triggers pin and is communicated with the switch control pin of described constant current control module by inverter, the high light of described decoding counter triggers pin and disconnects, the low light level of described decoding counter triggers pin and is communicated with the current sample input pin of described constant current control module by rectification module, the reset trigger pin of described decoding counter is communicated with the reset pin of described decoding counter, and the switch control pin of the reset pin of wherein said decoding counter and described constant current control module all is that high level is effective;
Described decoding counter is used for turn-offing triggering pin output high level when reset mode, the clock signal of sending according to described selective signal generator then, when described rising edge of clock signal, trigger pin, low light level triggering pin and reset trigger pin output high level at described high light successively respectively, and when in described shutoff triggering pin, high light triggering pin, low light level triggering pin and the reset trigger pin output high level being arranged, other equal output low level.
Wherein, described selective signal generator comprises that touch-switch, high level divider resistance, high level generate resistance and electric capacity of voltage regulation, described touch-switch and high level divider resistance are connected between the positive pole of the clock pin of described decoding counter and described power circuit successively, described electric capacity of voltage regulation is connected between the negative pole of the clock pin of described decoding counter and power circuit, and described high level generates between the negative pole that resistance is connected the clock pin of described decoding counter and power circuit.
Wherein, described inverter comprises second triode, inverter base resistance and inverter collector resistance, described second triode is the NPN pipe, described inverter base resistance is connected the base stage of described second triode and the shutoff of described decoding counter triggers between the pin, described inverter collector resistance is connected between the positive pole of the collector electrode of described second triode and described power circuit, the collector electrode of described second triode is communicated with the switch control pin of described constant current control module, and the emitter of described second triode is communicated with the negative pole of power circuit.
Wherein, described rectification module comprises the 4th triode, voltage-stabiliser tube, impedance matching resistance, sampling resistor, the first rectification and voltage division resistance and the second rectification and voltage division resistance, described the 4th triode is the PNP pipe, the base stage of described the 4th triode triggers pin with the low light level of described decoding counter and is communicated with, the described second rectification and voltage division resistance and the first rectification and voltage division resistance are connected between the positive pole of the emitter of described the 4th triode and power circuit successively, the collector electrode of described the 4th triode is communicated with the current sample input pin of described constant current control module, described impedance matching resistance and sampling resistor are connected between the negative pole of the collector electrode of described the 4th triode and power circuit successively, the positive pole of described voltage-stabiliser tube is connected to the common node of the described first rectification and voltage division resistance and the second rectification and voltage division resistance, and the negative pole of described voltage-stabiliser tube is connected to the negative pole of power circuit.
Wherein, described light source switch comprises the buck translation circuit, described buck translation circuit comprises the 3rd triode, first inductance, the 4th electric capacity and fly-wheel diode, described the 3rd triode is the NPN pipe, the base stage of described the 3rd triode is communicated with the output of described constant current control module, described sampling resistor is connected between the negative pole of the emitter of described the 3rd triode and power circuit, first inductance and light source are connected between the positive pole of the collector electrode of described the 3rd triode and power circuit successively, first inductance and the 4th electric capacity are connected between the positive pole of the collector electrode of described the 3rd triode and power circuit successively, the positive pole of fly-wheel diode is communicated with the collector electrode of the 3rd triode, and the negative pole that connects fly-wheel diode is communicated with the positive pole of power circuit.
Wherein, described control circuit board also comprises the under-voltage protection circuit; described under-voltage protection circuit comprises comparator; hold high-tension resistive in the same way; the backward end high-tension resistive; the backward end earth resistance; first diode and the 3rd diode; between the described positive pole of holding input in the same way that high-tension resistive is connected described comparator and described power circuit in the same way; the positive pole of described first diode is communicated with the input in the same way of described comparator; the negative pole of described first diode is communicated with the negative pole of described power circuit; described backward end high-tension resistive is connected between the positive pole of the reverse input end of described comparator and described power circuit; described backward end earth resistance is connected between the negative pole of the reverse input end of described comparator and described power circuit; the positive pole of described the 3rd diode is communicated with the output of described comparator, and the negative pole of described the 3rd diode is communicated with the reset pin of described decoding counter.
Wherein, described power circuit comprises power supply and the short-circuit protector of series connection successively.
Wherein, described power supply is lead-acid battery.
Wherein, described lamp holder is provided with charging inlet, and described charging inlet links to each other with negative pole with the positive pole of described power circuit.
Implement the embodiment of the invention, have following beneficial effect: by setting turn off the light, high light and these three kinds of states of the low light level, can under the different light intensity demand, regulate the luminous power of light source, thereby guarantee to provide under the situation of the required light intensity of enough work the discharge time of prolongation battery.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the first example structure schematic diagram of control circuit board provided by the invention;
Fig. 2 is the second example structure schematic diagram of control circuit board provided by the invention;
Fig. 3 is the 3rd example structure schematic diagram of control circuit board provided by the invention;
Fig. 4 is the 4th embodiment circuit diagram of control circuit board provided by the invention;
Fig. 5 is the schematic diagram of mine lamp provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention provides a kind of mine lamp, comprises battery case 1, stube cable line 2 and lamp holder 3.Be provided with power circuit 10 in the battery case 1, lamp holder 3 comprises control circuit board 4 and is connected in the light source 5 of control circuit board 4 that power circuit 10 connects control circuit board 4 by stube cable line 2 and gives light source power supply, and then control light source 5 is luminous.
Referring to Fig. 1, be the first example structure schematic diagram of control circuit board 4 provided by the invention.As shown in Figure 1, this control circuit board 4 comprises:
Conversion switch 41, conversion switch 41 can comprise handover module 411 and selective signal generator 412, and the control end of handover module 411 is connected to selective signal generator 412.Handover module 411 is used for switching between different off states, high light state and low light level state according to the selection signal that selective signal generator 412 produces.
Control circuit for light source 42, control circuit for light source 42 can comprise constant current control module 421 and light source switch 422.The control end of constant current control module 421 is connected to the output of handover module 411, and the output of constant current control module 421 is connected to the control end of light source switch 422, and light source switch 422 and light source 5 are connected between the positive pole and negative pole of power circuit 10 successively.
When handover module 411 was in off state, constant current control module 421 was used for control light source switch 422 and disconnects, and do not have electric current to flow through in the light source 5 this moment, and light source 5 is not luminous; When handover module 411 was in the high light state, constant current control module 421 was used for exporting the pulse that has than big space rate, 422 conductings of control light source switch, and the electric current that flow through in the light source 5 this moment is bigger, and light source 5 sends high light; When handover module 411 was in low light level state, constant current control module 421 was used for the pulse that output has less duty ratio, 422 conductings of control light source switch, and the electric current that flow through in the light source 5 this moment is less, and light source 5 sends the low light level.
A kind of mine lamp provided by the invention, by setting turn off the light, high light and these three kinds of states of the low light level, can under the different light intensity demand, regulate the luminous power of light source, thereby guarantee to provide under the situation of the required light intensity of enough work the discharge time of prolongation battery.
Referring to Fig. 2, be the second example structure schematic diagram of control circuit board provided by the invention.Fig. 2 is the further description to control circuit board 4 shown in Figure 1.
As shown in Figure 2, this control circuit board 4 comprises conversion switch 41 and control circuit for light source 42.Wherein, conversion switch 41 comprises handover module 411 and selective signal generator 412, and control circuit for light source 42 can comprise constant current control module 421, light source switch 422, rectification module 423 and inverter 424.Handover module 411 can comprise decoding counter U1, and the control end of constant current control module 421 comprises switch control pin STND and current sample input pin ISENSE.
The truth table of decoding counter U1 can be as shown in table 1 below:
Table 1
The sequential chart of decoding counter U1 can be as shown in table 2 below:
Table 2
According to table 1 and table 2, when decoding counter U1 is in reset mode when being called initial condition (or), turn-offing triggering pin Q0 output high level, the clock signal of sending according to selective signal generator 412 then, when this rising edge of clock signal, trigger pin Q1, low light level triggering pin Q2 and reset trigger pin Q3 output high level at high light successively respectively, and when in turn-offing triggering pin Q0, high light triggering pin Q1, low light level triggering pin Q2 and reset trigger pin Q3, an output high level being arranged, the equal output low level of other output pin.
As shown in Figure 2, the clock pin CLK of decoding counter U1 is connected to selective signal generator 412, the shutoff of decoding counter U1 triggers pin Q0 and is communicated with the switch control pin STND of constant current control module 421 by inverter 424, the high light of decoding counter U1 triggers pin Q1 and disconnects (namely vacant), the low light level of decoding counter U1 triggers pin Q2 and is communicated with the current sample input pin ISENSE of constant current control module 421 by rectification module 423, the reset trigger pin Q3 of decoding counter U1 is communicated with the reset pin RESET of decoding counter U1, and the reset pin RESET of the counter of wherein decoding and the switch of constant current control module control pin STND all are that high level is effective.
Principle according to the decoding counter, adopt control circuit board 4 as shown in Figure 2, in initial condition, when namely light source is not luminous, the Q0 pin output high level of decoding counter U1, Q1-Q3 pin output low level, the high level of Q0 pin output becomes low level through behind the inverter 424, because the switch of constant current control module 421 control pin STND is that high level is effective, so constant current control module 421 can not be worked, light source switch 422 disconnects, and light source 5 is not luminous.When first rising edge occurring in the clock signal of selecting signal generator 412 to produce, the second pin Q1 output high level of decoding counter U1, Q0, Q2 and Q3 output low level, low level on the Q0 becomes high level behind inverter 424 at this moment, constant current control module 421 is started working, in the pulse that the output DRIVE of constant current control module 421 output has first duty ratio, light source switch 422 conductings, light source 5 sends high light.When second rising edge appears in the clock signal of selecting signal generator 412 to produce, the 3rd pin Q2 output high level of decoding counter U1, Q0, Q1 and Q3 output low level, constant current this moment control module 421 is still worked, but, the high level of Q2 output increases the sample rate current of the current sample input pin ISENSE place input of constant current control module 421 through rectification module 423, thereby reduced output DRIVE output duty of ratio, namely make DRIVE export the pulse with second less duty ratio, the electric current that flows through light source 5 is diminished, and light source 5 sends the low light level.When the 3rd rising edge appears in the clock signal of selecting signal generator 412 to produce, the 4th pin Q3 output high level of decoding counter U1, the Q0-Q2 output low level, the high level of Q3 output is connected to reset pin RESET, decoding counter U1 is resetted, come back to initial condition, light source 5 is not luminous.
Preferably, as shown in Figure 4, selective signal generator 412 can comprise that touch-switch Switch, high level divider resistance R1, high level generate resistance R 2 and electric capacity of voltage regulation C1, touch-switch Switch and high level divider resistance R1 are connected between the positive pole of the clock pin CLK of decoding counter U1 and power circuit successively, between the clock pin CLK that electric capacity of voltage regulation C1 is connected decoding counter U1 and the negative pole of power circuit, high level generates between the negative pole that resistance R 2 is connected the clock pin CLK of the counter U1 that decodes and power circuit.Like this, when clicking touch-switch, power supply will charge to C1 by R1, and the voltage on the C1 rises gradually, and the CLK port just has a rising edge, by pressing and decontrol touch-switch Switch, and just can clocking.
Preferably, as shown in Figure 4, inverter 424 comprises the second triode T2, inverter base resistance R10 and inverter collector resistance R14.The second triode T2 is the NPN pipe, inverter base resistance R10 is connected the base stage of the second triode T2 and the shutoff of decoding counter triggers between the pin Q0, inverter collector resistance R14 is connected between the positive pole of the collector electrode of the second triode T2 and power circuit, the collector electrode of the second triode T2 is communicated with the switch control pin STND of constant current control module 421, and the emitter of the second triode T2 is communicated with the negative pole of power circuit.
Preferably, as shown in Figure 4, rectification module 423 comprises the 4th triode T4, impedance matching resistance R 11, sampling resistor, the first rectification and voltage division resistance R 15 and the second rectification and voltage division resistance R 16, and wherein voltage-stabiliser tube comprises D4 and the D5 of series connection successively, and sampling resistor comprises R12 and R13 in parallel.The 4th triode T4 is the PNP pipe, the base stage of the 4th triode T4 triggers pin Q2 with the low light level of decoding counter and is communicated with, the second rectification and voltage division resistance R 16 and the first rectification and voltage division resistance R 15 are connected between the positive pole of the emitter of the 4th triode T4 and power circuit successively, the collector electrode of the 4th triode T4 is communicated with the current sample input pin ISENSE of constant current control module 421, impedance matching resistance R 11 and sampling resistor are connected between the negative pole of the collector electrode of the 4th triode T4 and power circuit successively, the positive pole of voltage-stabiliser tube is connected to the common node of the first rectification and voltage division resistance R 15 and the second rectification and voltage division resistance R 16, and the negative pole of voltage-stabiliser tube is connected to the negative pole of power circuit.
Preferably, as shown in Figure 4, light source switch 422 comprises the buck translation circuit.This buck translation circuit is also referred to as the BUCK circuit, comprises the 3rd triode T3, first inductance L 1, the 4th capacitor C 4 and sustained diode 6.The 3rd triode T3 is the NPN pipe, the base stage of the 3rd triode T3 is communicated with the output DRIVE of constant current control module 421, sampling resistor is connected between the negative pole of the emitter of the 3rd triode T3 and power circuit, first inductance L 1 and light source 5 are connected between the positive pole of the collector electrode of the 3rd triode T3 and power circuit successively, first inductance L 1 and the 4th capacitor C 4 are connected between the positive pole of the collector electrode of the 3rd triode T3 and power circuit successively, the positive pole of sustained diode 6 is communicated with the collector electrode of the 3rd triode T3, and the negative pole of sustained diode 6 is communicated with the positive pole of power circuit.Owing to generally select for use LED as light source 5, can provide galvanic current stream for LED by the BUCK circuit.
Referring to Fig. 3, be the 3rd example structure schematic diagram of control circuit board provided by the invention.As shown in Figure 3, except the circuit module shown in Fig. 1 and Fig. 2, control circuit board 4 can also comprise under-voltage protection circuit 43, and under-voltage protection circuit 43 is used for closing mine lamp automatically when the voltage of power circuit 10 drops to certain value.
As shown in Figure 4, under-voltage protection circuit 43 can comprise comparator U3, hold high-tension resistive R5, backward end high-tension resistive R6, backward end earth resistance R7, the first diode D1 and the 3rd diode D3 in the same way.Hold high-tension resistive R5 to be connected between the positive pole of the input in the same way of comparator U3 and power circuit in the same way, the positive pole of the first diode D1 is communicated with the input in the same way of comparator, the negative pole of the first diode D1 is communicated with the negative pole of power circuit, backward end high-tension resistive R6 is connected between the positive pole of the reverse input end of comparator U3 and power circuit, backward end earth resistance R7 is connected between the negative pole of the reverse input end of comparator U3 and power circuit, the positive pole of the 3rd diode D3 is communicated with the output of comparator U3, and the negative pole of the 3rd diode D3 is communicated with the reset pin RESET of decoding counter U1.
Wherein, D1 plays pressure stabilization function, can be with the voltage at D1 two ends as benchmark, the voltage of the input in the same way of comparator U3 keeps being the voltage at D1 two ends, its value remains unchanged, and the output voltage V CC of power circuit is input to the reverse input end of comparator U3 after R6, R7 dividing potential drop simultaneously, when battery is full of electric operate as normal, the terminal voltage in the same way of U3 is lower than backward end, so comparator U3 output low level; When cell voltage descended, the terminal voltage in the same way of U3 was higher than backward end, illustrated that battery electric quantity has exhausted soon, comparator output high level, and the D3 conducting resets U1.
Referring to Fig. 4 and Fig. 5, be respectively the 4th embodiment circuit diagram of control circuit board provided by the invention and the schematic diagram of mine lamp, wherein Fig. 4 is the detailed description of control circuit board shown in Fig. 1-3.
As shown in Figure 5, mine lamp provided by the invention can comprise battery case 1, stube cable line 2 and lamp holder 3.Battery case 1 comprises power circuit 10, and lamp holder 3 comprises control circuit board 4, and control circuit board 4 is provided with light source 5, and power circuit 10 gives control circuit board 4 power supplies by stube cable line 2, and then control light source 5 is luminous.Battery case 1 is provided with mobile division 7, can make things convenient for user's miner's hand lamp.Also be provided with shift knob 6 on the lamp holder 3, shift knob 6 is connected with touch-switch on the control circuit board, is used for the control mine lamp and changes between pass, the low light level, these three kinds of states of high light.For fear of burn whole mine lamp because of partial short-circuit; power circuit 10 can comprise power supply 101 and the short-circuit protector 102 of series connection successively; when late-class circuit (for example conversion switch, control circuit for light source etc.) has short-circuit conditions to take place; short-circuit protector can in time cut off output; in order to avoid burn other elements, and short-circuit protector can recover normal after short circuit is removed.In addition, in the prior art, generally select for use lithium battery as power supply 101, still, lithium battery is along with the increase of service time, inducing capacity fading, there is danger on fire, blast in the phenomenon that bulge may occur, and this is a kind of very big potential safety hazard for operation under the mine, therefore, the present invention preferably uses lead-acid battery as power supply 101.In addition, in the prior art, mine lamp does not possess general charging inlet usually, and be to use special-purpose mine lamp charging draw-in groove, then can't charge in the place that does not have lamp-charging rack, this is severely limited the use of mine lamp, and the present invention preferably lamp holder 3 is provided with general charging inlet (for example column type charging inlet), this charging inlet links to each other with negative pole with the positive pole of power circuit, can connect external power source by special-purpose charger and give mine lamp charging.
As shown in Figure 4; the electric part of this mine lamp comprises circuit, control circuit board and the light source that is connected with control circuit board in the battery case; circuit comprises lead-acid battery and the short-circuit protector of series connection successively in the battery case, and control circuit board comprises conversion switch, control circuit for light source and under-voltage protection circuit.
In conversion switch 41, adopt decoding counter U1, CD4017 for example, its truth table and sequential chart are described with reference to figure 2.U1 has Q0-Q910 output, and when the CLK pin had a rising edge pulse, just having one among the Q0-Q9 was high level output, other low levels; When powering on initial condition, Q0 is high level, and other outputs are low levels; RESET is reset pin, and high level is effective, and the back U1 that resets is in the preliminary examination state that powers on.In control circuit for light source 42, adopt crossing current control chip U2, U2 has VCC, GND, DRIVE, ISENSE, five pins of STND, DRIVE drives pin (also being output) for the outside connected switch pipe, ISENSE is the current sample input pin, STND can control work and the shutoff of IC, IC operate as normal when it is high level, and IC quits work during for low level.
The clock pin CLK of decoding counter U1 is communicated with the positive pole of power circuit via touch-switch and R1 successively, be communicated with the negative pole of power circuit via electric capacity of voltage regulation C1, also generate resistance R 2 via high level and be communicated with the negative pole of power circuit, wherein C1 plays time-delay, and R2 is pull down resistor.The shutoff of decoding counter U1 triggers pin Q0 and is communicated with via the base stage of resistance R 10 with triode T2, T2 is the NPN pipe, the collector electrode of T2 is communicated with the positive pole of power circuit via resistance R 14, the collector electrode of T2 also is communicated with the switch control pin STND of U2, and the emitter of T2 is communicated with the negative pole of power circuit.The high light of decoding counter U1 triggers pin Q1 and disconnects (namely vacant).The low light level of decoding counter U1 triggers pin Q2 and is communicated with the base stage of triode T4, T4 is the PNP pipe, the emitter of T4 is communicated with the positive pole of power circuit via resistance R 16 and resistance R 15 successively, the collector electrode of T4 is communicated with the current sample input pin ISENSE of U2, the collector electrode of T4 also is communicated with the negative pole of power circuit via R11 and R12 and R13 in parallel successively, D4 after the series connection and the positive pole of D5 are connected to the common node of resistance R 15 and resistance R 16, and the D4 after the series connection and the negative pole of D5 are connected to the negative pole of power circuit.The reset trigger pin Q3 of decoding counter U1 is communicated with the reset pin RESET of decoding counter U1.The reset pin RESET of U1 also is communicated with the output of comparator U3 via reverse diode D3, the input in the same way of comparator U3 is communicated with the positive pole of power circuit via resistance R 5, and be communicated with the negative pole of power circuit via diode D1, the reverse input end of comparator U3 is communicated with the positive pole of power circuit via resistance R 6, and is communicated with the negative pole of power circuit via resistance R 7.The outside connected switch pipe of U2 drives pin (output) and is communicated with the base stage of triode T3, T3 is the NPN pipe, the emitter of T3 is communicated with the negative pole of power circuit via R12 and the R13 of parallel connection, the collector electrode of T3 is communicated with the positive pole of power circuit via inductance L 1 and Light-Emitting Diode LED successively, be communicated with the positive pole of power circuit via inductance L 1 and capacitor C 4 successively, also be communicated with the positive pole of power circuit via sustained diode 6, wherein the collector electrode of T3 links to each other with the positive pole of D6.
When cell voltage is higher than the low-voltage protection point of setting in the low-voltage variation device, the circuit operate as normal.Not by switch the time, the Q0 of U1 end was high level after circuit powered on, the T2 conducting, and U2 ends, and light source does not work; When pressing switch the 1st time, Q1 exports high level, Q0, and Q2, Q3 is low level, and this moment, T2 ended, the U2 operate as normal, T4 is conducting also, and the electric current that flows through LED is less, and mine lamp is in low light level state; Press switch the 2nd time, Q2 uprises level, and T4 ends, and the electric current that flows through LED is bigger, and mine lamp is in the high light state; Press switch the 3rd time, Q3 exports high level, and U1 resets and gets back to the preliminary examination state, and mine lamp extinguishes; Again can be by the low light level, high light, the cycle of states extinguished by the switch mine lamp.In the light fixture operate as normal, cell voltage can descend gradually, and when voltage drops to protection point (for example 5V) when following, U3 exports high level resets U1, and mine lamp quits work.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosed only is a kind of preferred embodiment of the present invention, certainly can not limit the present invention's interest field with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and according to the equivalent variations that claim of the present invention is done, still belong to the scope that invention is contained.
Claims (10)
1. mine lamp, comprise battery case, stube cable line and lamp holder, be provided with power circuit in the described battery case, described lamp holder comprises control circuit board and is connected in the light source of described control circuit board, described power circuit connects described control circuit board by described stube cable line and gives light source power supply, and then control described light source luminescent, it is characterized in that described control circuit board comprises:
Conversion switch, described conversion switch comprises handover module and for generation of the selective signal generator of selecting signal, the control end of described handover module is connected to selective signal generator, and described handover module is used for switching between off state, high light state and low light level state according to the selection signal that described selective signal generator produces;
Control circuit for light source, described control circuit for light source comprises constant current control module and light source switch, the control end of described constant current control module is connected to the output of described handover module, the output of described constant current control module is connected to the control end of light source switch, and described light source switch and light source are connected between the positive pole and negative pole of power circuit successively; Described constant current control module is used for when described handover module is in off state, controls described light source switch and disconnects; Described constant current control module is used for when described handover module is in the high light state, and described light source switch conducting is controlled in the pulse that output has first duty ratio; Described constant current control module is used for when described handover module is in low light level state, and the pulse that output has second duty ratio control described light source switch conducting, and described second duty ratio is less than described first duty ratio.
2. mine lamp according to claim 1 is characterized in that, described handover module comprises the decoding counter, and the control end of described constant current control module comprises switch control pin and current sample input pin;
The clock pin of described decoding counter is connected to described selective signal generator, the shutoff of described decoding counter triggers pin and is communicated with the switch control pin of described constant current control module by inverter, the high light of described decoding counter triggers pin and disconnects, the low light level of described decoding counter triggers pin and is communicated with the current sample input pin of described constant current control module by rectification module, the reset trigger pin of described decoding counter is communicated with the reset pin of described decoding counter, and the switch control pin of the reset pin of wherein said decoding counter and described constant current control module all is that high level is effective;
Described decoding counter is used for turn-offing triggering pin output high level when reset mode, the clock signal of sending according to described selective signal generator then, when described rising edge of clock signal, trigger pin, low light level triggering pin and reset trigger pin output high level at described high light successively respectively, and when in described shutoff triggering pin, high light triggering pin, low light level triggering pin and the reset trigger pin output high level being arranged, other equal output low level.
3. mine lamp according to claim 2, it is characterized in that, described selective signal generator comprises that touch-switch, high level divider resistance, high level generate resistance and electric capacity of voltage regulation, described touch-switch and high level divider resistance are connected between the positive pole of the clock pin of described decoding counter and described power circuit successively, described electric capacity of voltage regulation is connected between the negative pole of the clock pin of described decoding counter and power circuit, and described high level generates between the negative pole that resistance is connected the clock pin of described decoding counter and power circuit.
4. mine lamp according to claim 3, it is characterized in that, described inverter comprises second triode, inverter base resistance and inverter collector resistance, described second triode is the NPN pipe, described inverter base resistance is connected the base stage of described second triode and the shutoff of described decoding counter triggers between the pin, described inverter collector resistance is connected between the positive pole of the collector electrode of described second triode and described power circuit, the collector electrode of described second triode is communicated with the switch control pin of described constant current control module, and the emitter of described second triode is communicated with the negative pole of power circuit.
5. mine lamp according to claim 4, it is characterized in that, described rectification module comprises the 4th triode, voltage-stabiliser tube, impedance matching resistance, sampling resistor, the first rectification and voltage division resistance and the second rectification and voltage division resistance, described the 4th triode is the PNP pipe, the base stage of described the 4th triode triggers pin with the low light level of described decoding counter and is communicated with, the described second rectification and voltage division resistance and the first rectification and voltage division resistance are connected between the positive pole of the emitter of described the 4th triode and power circuit successively, the collector electrode of described the 4th triode is communicated with the current sample input pin of described constant current control module, described impedance matching resistance and sampling resistor are connected between the negative pole of the collector electrode of described the 4th triode and power circuit successively, the positive pole of described voltage-stabiliser tube is connected to the common node of the described first rectification and voltage division resistance and the second rectification and voltage division resistance, and the negative pole of described voltage-stabiliser tube is connected to the negative pole of power circuit.
6. mine lamp according to claim 5, it is characterized in that, described light source switch comprises the buck translation circuit, described buck translation circuit comprises the 3rd triode, first inductance, the 4th electric capacity and fly-wheel diode, described the 3rd triode is the NPN pipe, the base stage of described the 3rd triode is communicated with the output of described constant current control module, described sampling resistor is connected between the negative pole of the emitter of described the 3rd triode and power circuit, first inductance and light source are connected between the positive pole of the collector electrode of described the 3rd triode and power circuit successively, first inductance and the 4th electric capacity are connected between the positive pole of the collector electrode of described the 3rd triode and power circuit successively, the positive pole of fly-wheel diode is communicated with the collector electrode of the 3rd triode, and the negative pole that connects fly-wheel diode is communicated with the positive pole of power circuit.
7. mine lamp according to claim 6; it is characterized in that; described control circuit board also comprises the under-voltage protection circuit; described under-voltage protection circuit comprises comparator; hold high-tension resistive in the same way; the backward end high-tension resistive; the backward end earth resistance; first diode and the 3rd diode; between the described positive pole of holding input in the same way that high-tension resistive is connected described comparator and described power circuit in the same way; the positive pole of described first diode is communicated with the input in the same way of described comparator; the negative pole of described first diode is communicated with the negative pole of described power circuit; described backward end high-tension resistive is connected between the positive pole of the reverse input end of described comparator and described power circuit; described backward end earth resistance is connected between the negative pole of the reverse input end of described comparator and described power circuit; the positive pole of described the 3rd diode is communicated with the output of described comparator, and the negative pole of described the 3rd diode is communicated with the reset pin of described decoding counter.
8. mine lamp according to claim 7 is characterized in that, described power circuit comprises power supply and the short-circuit protector of series connection successively.
9. mine lamp according to claim 8 is characterized in that, described power supply is lead-acid battery.
10. mine lamp according to claim 9 is characterized in that, described lamp holder is provided with charging inlet, and described charging inlet links to each other with negative pole with the positive pole of described power circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110453005.6A CN103188842B (en) | 2011-12-29 | 2011-12-29 | A kind of mine lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110453005.6A CN103188842B (en) | 2011-12-29 | 2011-12-29 | A kind of mine lamp |
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| CN103188842A true CN103188842A (en) | 2013-07-03 |
| CN103188842B CN103188842B (en) | 2016-11-23 |
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| CN201110453005.6A Expired - Fee Related CN103188842B (en) | 2011-12-29 | 2011-12-29 | A kind of mine lamp |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104684189A (en) * | 2013-12-03 | 2015-06-03 | 深圳市海洋王照明工程有限公司 | LED (Light-emitting Diode) drive circuit and mine explosion-proof lamp |
| CN105186884A (en) * | 2015-10-27 | 2015-12-23 | 杭州中恒派威电源有限公司 | Direct frequency conversion communication device adopting bidirectional transducer and control method thereof |
| CN113446530A (en) * | 2021-07-12 | 2021-09-28 | 深圳市中孚能电气设备有限公司 | Lamp holder and miner's lamp |
| CN115083358A (en) * | 2022-07-05 | 2022-09-20 | 珠海格力电器股份有限公司 | Display panel backlight control circuit and control method |
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| GB2149543A (en) * | 1983-11-08 | 1985-06-12 | Morrison John M | Alarm system |
| CN2896015Y (en) * | 2006-03-09 | 2007-05-02 | 梁标富 | Touch strong searchlight |
| CN201475857U (en) * | 2009-08-31 | 2010-05-19 | 中国电子科技集团公司第二十八研究所 | Illuminator for square cabin interface window |
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| GB2149543A (en) * | 1983-11-08 | 1985-06-12 | Morrison John M | Alarm system |
| CN2896015Y (en) * | 2006-03-09 | 2007-05-02 | 梁标富 | Touch strong searchlight |
| CN201475857U (en) * | 2009-08-31 | 2010-05-19 | 中国电子科技集团公司第二十八研究所 | Illuminator for square cabin interface window |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104684189A (en) * | 2013-12-03 | 2015-06-03 | 深圳市海洋王照明工程有限公司 | LED (Light-emitting Diode) drive circuit and mine explosion-proof lamp |
| CN104684189B (en) * | 2013-12-03 | 2019-03-12 | 深圳市海洋王照明工程有限公司 | A kind of LED drive circuit and flameproof luminaire |
| CN105186884A (en) * | 2015-10-27 | 2015-12-23 | 杭州中恒派威电源有限公司 | Direct frequency conversion communication device adopting bidirectional transducer and control method thereof |
| CN113446530A (en) * | 2021-07-12 | 2021-09-28 | 深圳市中孚能电气设备有限公司 | Lamp holder and miner's lamp |
| CN115083358A (en) * | 2022-07-05 | 2022-09-20 | 珠海格力电器股份有限公司 | Display panel backlight control circuit and control method |
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| Publication number | Publication date |
|---|---|
| CN103188842B (en) | 2016-11-23 |
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