CN103188842B - A kind of mine lamp - Google Patents
A kind of mine lamp Download PDFInfo
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- CN103188842B CN103188842B CN201110453005.6A CN201110453005A CN103188842B CN 103188842 B CN103188842 B CN 103188842B CN 201110453005 A CN201110453005 A CN 201110453005A CN 103188842 B CN103188842 B CN 103188842B
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- light source
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- enumerator
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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 embodiment of the invention discloses a kind of mine lamp, including battery case, connecting cable and lamp holder, power circuit it is provided with in battery case, lamp holder includes control circuit plate and is connected to the light source of control circuit plate, power circuit by connecting cable connect control circuit plate to light source power supply, and then control light source luminescent, control circuit plate includes conversion switch and control circuit for light source, when conversion switch is off state, control circuit for light source controls light source and closes；When conversion switch is in high light state, control circuit for light source controls light source and sends high light；When conversion switch is in low light level state, control circuit for light source controls light source and sends the low light level.Use the present invention, turned off the light by setting, high light and low light level these three state, the luminous strong and weak of light source can be regulated under different light intensity demands, thus in the case of ensureing to provide the light intensity needed for enough work, the discharge time of prolongation battery.
Description
Technical field
The present invention relates to field of light fittings, particularly relate to a kind of mine lamp.
Background technology
Mine lamp is a kind of lamp used under mine, generally uses the form of split type safety cap lamp, can be fixed on safety
On cap, it is possible to carry on hand.Mine lamp can include lamp holder, battery case and connecting cable.Typically it is filled with chargeable in battery case
Lithium battery；It is provided with circuit board, light source and illuminator in lamp holder, circuit board generally includes light source driving circuit and charging controls
Circuit, is used for controlling light source, and light source is generally LED, and lamp holder outer surface is provided with cap and buckles, and lamp holder can be fixed on safety helmet
On, cap is buckled and can also be arranged the draw-in groove that mine lamp charging is special；Battery case is connected with lamp holder by connecting cable, thus gives lamp
Circuit board in Tou and light source power supply.
In order to alleviate the weight of mine lamp, the capacity of the battery selected in battery case is typically small.So, if light source sends by force
Light, then the discharge time of mine lamp will be the shortest, is unsuitable for operation under long ore deposit；If light source sends the low light level, strong at needs
Probably due to light luminance affects the work of miner not during optical illumination.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, it is provided that a kind of mine lamp.Scalable light intensity, is ensureing
While relatively long discharge time, do not affect the work of miner because of insufficient light.
In order to solve above-mentioned technical problem, embodiments provide a kind of mine lamp, including battery case, connecting cable
And lamp holder, it being provided with power circuit in described battery case, described lamp holder includes control circuit plate and is connected to described control circuit plate
Light source, described power circuit by described connecting cable connect described control circuit plate to light source power supply, and then control institute
Stating light source luminescent, described control circuit plate includes:
Conversion switch, described conversion switch includes handover module and for producing the selection signal selecting signal
Generator, the control end of described handover module is connected to selective signal generator, and described handover module is for according to described selection
The selection signal that signal generator produces switches between off state, high light state and low light level state；
Control circuit for light source, described control circuit for light source includes constant-current control module and light source switch, described current constant control
The end that controls of module is connected to the outfan of described handover module, and the outfan of described constant-current control module is connected to light source switch
Control end, described light source switch and light source are sequentially connected in series between the positive pole and negative pole of power circuit；Described current constant control mould
Block, for when described handover module is off state, controls described light source switch and disconnects；Described constant-current control module is used for
When described handover module is in high light state, output has the pulse of the first dutycycle, controls the conducting of described light source switch；Institute
Stating constant-current control module for when described handover module is in low light level state, output has the pulse of the second dutycycle, controls
Described light source switch turns on, and described second dutycycle is less than described first dutycycle.
Wherein, described handover module includes decoding enumerator, and the control end of described constant-current control module includes on-off control
Pin and current sample input pin；
The clock pins of described decoding enumerator is connected to described selective signal generator, the shutoff of described decoding enumerator
Triggering pin to be connected with the switch control pin of described constant-current control module by phase inverter, the high light of described decoding enumerator touches
Foot of carrying out the coffin upon burial disconnects, and the low light level of described decoding enumerator is triggered pin and adopted by the electric current of rectification module with described constant-current control module
Sample input pin connects, and the reset trigger pin of described decoding enumerator connects with the reset pin of described decoding enumerator, its
Described in decode enumerator the switch control pin of reset pin and described constant-current control module be all that high level is effective；
Described decoding enumerator is for turning off triggering pin output high level, then according to described choosing when reset state
Select the clock signal that signal generator sends, trigger at described high light successively when the rising edge of described clock signal respectively and draw
Foot, the low light level trigger pin and reset trigger pin output high level, and when described turn off trigger pin, high light triggers pin, weak
Light triggers when having an output high level in pin and reset trigger pin, other equal output low level.
Wherein, described selective signal generator includes that touch-switch, high level divider resistance, high level generate resistance and steady
Voltage capacitance, described touch-switch and high level divider resistance are sequentially connected in series at the clock pins of described decoding enumerator and described electricity
Between the positive pole of source circuit, described electric capacity of voltage regulation be connected to the clock pins of described decoding enumerator and power circuit negative pole it
Between, described high level generates between clock pins and the negative pole of power circuit that resistance is connected to described decoding enumerator.
Wherein, described phase inverter includes the second audion, phase inverter base resistance and phase inverter collector resistance, described
Two audions are NPN pipes, and described phase inverter base resistance is connected to the base stage of described second audion and described decoding enumerator
Shutoff trigger between pin, described phase inverter collector resistance is connected to the colelctor electrode of described second audion and described power supply
Between the positive pole of circuit, the colelctor electrode of described second audion connects with the switch control pin of described constant-current control module, institute
The negative pole of the emitter stage and power circuit of stating the second audion connects.
Wherein, described rectification module includes the 4th audion, stabilivolt, impedance matching resistor, sampling resistor, the first rectification
Divider resistance and the second rectification and voltage division resistance, described 4th audion is PNP pipe, the base stage of described 4th audion and described solution
The low light level of code enumerator triggers pin connection, and described second rectification and voltage division resistance and the first rectification and voltage division resistance are sequentially connected in series in institute
State between emitter stage and the positive pole of power circuit of the 4th audion, the colelctor electrode of described 4th audion and described current constant control
The current sample input pin connection of module, described impedance matching resistor and sampling resistor are sequentially connected in series at described 4th audion
Colelctor electrode and the negative pole of power circuit between, the positive pole of described stabilivolt is connected to described first rectification and voltage division resistance and second
The common node of rectification and voltage division resistance, the negative pole of described stabilivolt is connected to the negative pole of power circuit.
Wherein, described light source switch include Buck conversion circuit, described Buck conversion circuit include the 3rd audion,
First inductance, the 4th electric capacity and fly-wheel diode, described 3rd audion is NPN pipe, the base stage of described 3rd audion and institute
Stating the outfan connection of constant-current control module, described sampling resistor is connected to emitter stage and the power circuit of described 3rd audion
Negative pole between, the first inductance and light source be sequentially connected in series described 3rd audion colelctor electrode and power circuit positive pole it
Between, the first inductance and the 4th electric capacity are sequentially connected in series between colelctor electrode and the positive pole of power circuit of described 3rd audion, continuous
The positive pole of stream diode and the colelctor electrode connection of the 3rd audion, the positive pole of the negative pole and power circuit that connect fly-wheel diode connects
Logical.
Wherein, described control circuit plate also include low voltage protection circuit, described low voltage protection circuit include comparator,
Hold high-tension resistive, backward end high-tension resistive, backward end earth resistance, the first diode and the 3rd diode in the same direction, described in the same direction
End high-tension resistive is connected between the input in the same direction of described comparator and the positive pole of described power circuit, described first diode
Positive pole connect with the input in the same direction of described comparator, the negative pole of the negative pole of described first diode and described power circuit is even
Logical, described backward end high-tension resistive is connected between the reverse input end of described comparator and the positive pole of described power circuit, institute
State backward end earth resistance to be connected between the reverse input end of described comparator and the negative pole of described power circuit, the described 3rd
The positive pole of diode connects with the outfan of described comparator, described 3rd negative pole of diode and answering of described decoding enumerator
Position pin connection.
Wherein, described power circuit includes power supply and the short-circuit protector being sequentially connected in series.
Wherein, described power supply is lead-acid battery.
Wherein, described lamp holder is provided with positive pole and the negative pole of charging inlet, described charging inlet and described power circuit
It is connected.
Implement the embodiment of the present invention, have the advantages that turned off the light by setting, high light and low light level these three state,
The luminescence that can regulate light source under different light intensity demands is strong and weak, thus the light intensity needed for guarantee provides enough work
In the case of, extend the discharge time of battery.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the first embodiment structural representation of the control circuit plate that the present invention provides；
Fig. 2 is the second example structure schematic diagram of the control circuit plate that the present invention provides；
Fig. 3 is the 3rd example structure schematic diagram of the control circuit plate that the present invention provides；
Fig. 4 is the 4th embodiment circuit diagram of the control circuit plate that the present invention provides；
Fig. 5 is the schematic diagram of the mine lamp that the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiments provide a kind of mine lamp, including battery case 1, connecting cable 2 and lamp holder 3.Set in battery case 1
Having power circuit 10, lamp holder 3 include control circuit plate 4 and are connected to the light source 5 of control circuit plate 4, power circuit 10 is by even
Connect cable 2 and connect control circuit plate 4 to light source power supply, and then it is luminous to control light source 5.
See Fig. 1, for the first embodiment structural representation of the control circuit plate 4 that the present invention provides.As it is shown in figure 1, should
Control circuit plate 4 includes:
Conversion switch 41, conversion switch 41 can include handover module 411 and selective signal generator 412,
The control end of handover module 411 is connected to selective signal generator 412.Handover module 411 is for according to selective signal generator
412 signals that select produced switch between different off states, high light state and low light level state.
Control circuit for light source 42, control circuit for light source 42 can include constant-current control module 421 and light source switch 422.Permanent
The end that controls of flow control module 421 is connected to the outfan of handover module 411, and the outfan of constant-current control module 421 is connected to
The control end of light source switch 422, light source switch 422 and light source 5 are sequentially connected in series between the positive pole and negative pole of power circuit 10.
When handover module 411 is off state, constant-current control module 421 is used for controlling light source switch 422 and disconnects, this
Not having electric current to flow through in Shi Guangyuan 5, light source 5 is the most luminous；When handover module 411 is in high light state, constant-current control module 421
Having the pulse of relatively big space rate for output, control light source switch 422 and turn on, the electric current now flow through in light source 5 is relatively big, light
Source 5 sends high light；When handover module 411 is in low light level state, constant-current control module 421 has less dutycycle for output
Pulse, control light source switch 422 turn on, the electric current now flow through in light source 5 is less, and light source 5 sends the low light level.
A kind of mine lamp that the present invention provides, is turned off the light by setting, high light and low light level these three state, can be in different light intensity
Regulate the luminous strong and weak of light source under demand, thus in the case of ensureing to provide the light intensity needed for enough work, extend electricity
The discharge time in pond.
See Fig. 2, for the second example structure schematic diagram of the control circuit plate that the present invention provides.Fig. 2 is to shown in Fig. 1
Being further described of control circuit plate 4.
As in figure 2 it is shown, this control circuit plate 4 includes conversion switch 41 and control circuit for light source 42.Wherein, switch turns
Changing circuit 41 and include handover module 411 and selective signal generator 412, control circuit for light source 42 can include constant-current control module
421, light source switch 422, rectification module 423 and phase inverter 424.Handover module 411 can include decoding enumerator U1, constant current control
The control end of molding block 421 includes switch control pin STND and current sample input pin ISENSE.
The truth table of decoding enumerator U1 can be as shown in table 1 below:
Table 1
The sequential chart of decoding enumerator U1 can be as shown in table 2 below:
Table 2
According to Tables 1 and 2, when decoding enumerator U1 and being in reset state (or during referred to as original state), touch turning off
The foot Q0 that carrys out the coffin upon burial exports high level, and the clock signal then sent according to selective signal generator 412, respectively in this clock signal
Trigger pin Q1 at high light successively during rising edge, the low light level triggers pin Q2 and reset trigger pin Q3 and exports high level, and when closing
The disconnected pin Q0 of triggering, high light trigger pin Q1, the low light level triggers an output high level in pin Q2 and reset trigger pin Q3
Time, other the equal output low level of output pin.
As in figure 2 it is shown, the clock pins CLK of decoding enumerator U1 is connected to selective signal generator 412, decode enumerator
The triggering pin Q0 that turns off of U1 is connected with switch control pin STND of constant-current control module 421 by phase inverter 424, solves yardage
The high light of number device U1 triggers pin Q1 and disconnects (the most vacant), and the low light level of decoding enumerator U1 triggers pin Q2 and passes through rectification module
423 connect with the current sample input pin ISENSE of constant-current control module 421, the reset trigger pin Q3 of decoding enumerator U1
Connect with the reset pin RESET of decoding enumerator U1, wherein decode reset pin RESET and the constant-current control module of enumerator
Switch control pin STND be all that high level is effective.
According to the principle of decoding enumerator, using control circuit plate 4 as shown in Figure 2, in original state, i.e. light source is not sent out
Light time, the Q0 pin output high level of decoding enumerator U1, Q1-Q3 pin output low level, the high level warp of Q0 pin output
Low level is become after crossing phase inverter 424, owing to switch control pin STND of constant-current control module 421 is that high level is effective, because of
This constant-current control module 421 can not work, and light source switch 422 disconnects, and light source 5 is the most luminous.When selective signal generator 412 produces
Clock signal in occur first rising edge time, decoding enumerator U1 second pin Q1 export high level, Q0, Q2 and Q3 are defeated
Go out low level, now become high level after the inverted device of the low level on Q0 424, make constant-current control module 421 start working,
The outfan DRIVE output of constant-current control module 421 has the pulse of the first dutycycle, and light source switch 422 turns on, light source 5
Go out high light.When there is second rising edge in the clock signal that selective signal generator 412 produces, the 3rd of decoding enumerator U1
Pin Q2 exports high level, Q0, Q1 and Q3 output low level, and now constant-current control module 421 still works, but, Q2 exports
High level make at the current sample input pin ISENSE of constant-current control module 421 sampling of input through rectification module 423
Electric current increases, thus reduces the dutycycle of outfan DRIVE output pulse, i.e. makes DRIVE output have less second
The pulse of dutycycle, makes the electric current flowing through light source 5 diminish, and light source 5 sends the low light level.When selective signal generator 412 produces
When there is the 3rd rising edge in clock signal, the 4th pin Q3 output high level of decoding enumerator U1, Q0-Q2 output low level,
The high level of Q3 output is connected to reset pin RESET, makes decoding enumerator U1 reset, comes back to original state, and light source 5 is not
Luminous.
Preferably, as shown in Figure 4, selective signal generator 412 can include touch-switch Switch, high level dividing potential drop electricity
Resistance R1, high level generate resistance R2 and electric capacity of voltage regulation C1, touch-switch Switch and high level divider resistance R1 and are sequentially connected in series
Between clock pins CLK and the positive pole of power circuit of decoding enumerator U1, electric capacity of voltage regulation C1 is connected to decode enumerator U1's
Between clock pins CLK and the negative pole of power circuit, high level generates resistance R2 and is connected to decode the clock pins of enumerator U1
Between CLK and the negative pole of power circuit.So, when clicking touch-switch, power supply will be charged to C1 by R1, the electricity on C1
Pressure rises gradually, and CLK port just has a rising edge, by pressing and relieving touch-switch Switch, it is possible to produce clock
Signal.
Preferably, as shown in Figure 4, phase inverter 424 includes the second audion T2, phase inverter base resistance R10 and phase inverter
Collector resistance R14.Second audion T2 is NPN pipe, phase inverter base resistance R10 be connected to the base stage of the second audion T2 with
The shutoff of decoding enumerator triggers between pin Q0, and phase inverter collector resistance R14 is connected to the colelctor electrode of the second audion T2
And between the positive pole of power circuit, the colelctor electrode of the second audion T2 and switch control pin STND of constant-current control module 421
Connection, the emitter stage of the second audion T2 connects with the negative pole of power circuit.
Preferably, as shown in Figure 4, rectification module 423 includes the 4th audion T4, impedance matching resistor R11, sampling electricity
Resistance, the first rectification and voltage division resistance R15 and the second rectification and voltage division resistance R16, wherein stabilivolt includes D4 and D5 being sequentially connected in series, and adopts
Sample resistance includes R12 and R13 of parallel connection.4th audion T4 is PNP pipe, the base stage of the 4th audion T4 and decoding enumerator
The low light level triggers pin Q2 connection, and the second rectification and voltage division resistance R16 and the first rectification and voltage division resistance R15 is sequentially connected in series in the four or three pole
Between emitter stage and the positive pole of power circuit of pipe T4, the colelctor electrode of the 4th audion T4 and the electric current of constant-current control module 421
Sampling input pin ISENSE connection, impedance matching resistor R11 and sampling resistor are sequentially connected in series the current collection at the 4th audion T4
Between pole and the negative pole of power circuit, the positive pole of stabilivolt is connected to the first rectification and voltage division resistance R15 and the second rectification and voltage division electricity
The common node of resistance R16, the negative pole of stabilivolt is connected to the negative pole of power circuit.
Preferably, as shown in Figure 4, light source switch 422 includes Buck conversion circuit.This Buck conversion circuit, also referred to as
For BUCK circuit, including the 3rd audion T3, the first inductance L1, the 4th electric capacity C4 and sustained diode 6.3rd audion T3
Being NPN pipe, the base stage of the 3rd audion T3 connects with the outfan DRIVE of constant-current control module 421, and sampling resistor is connected to the
Between emitter stage and the negative pole of power circuit of three audion T3, the first inductance L1 and light source 5 are sequentially connected in series at the 3rd audion
Between colelctor electrode and the positive pole of power circuit of T3, the first inductance L1 and the 4th electric capacity C4 is sequentially connected in series the 3rd audion T3's
Between colelctor electrode and the positive pole of power circuit, the positive pole of sustained diode 6 and the colelctor electrode connection of the 3rd audion T3, afterflow
The negative pole of diode D6 connects with the positive pole of power circuit.Select LED as light source 5 due to general, BUCK circuit can be passed through
Galvanic current stream is provided for LED.
See Fig. 3, for the 3rd example structure schematic diagram of the control circuit plate that the present invention provides.As it is shown on figure 3, except
Outside circuit module shown in Fig. 1 and Fig. 2, control circuit plate 4 can also include low voltage protection circuit 43, under-voltage protection electricity
Road 43, for when the voltage of power circuit 10 drops to certain value, is automatically switched off mine lamp.
As shown in Figure 4, low voltage protection circuit 43 can include that comparator U3, in the same direction end high-tension resistive R5, backward end are high
Piezoresistance R6, backward end earth resistance R7, the first diode D1 and the 3rd diode D3.End high-tension resistive R5 is connected to ratio in the same direction
In the same direction between input and the positive pole of power circuit of relatively device U3, the positive pole of the first diode D1 and the input in the same direction of comparator
Connection, the negative pole of the first diode D1 connects with the negative pole of power circuit, and backward end high-tension resistive R6 is connected to comparator U3's
Between reverse input end and the positive pole of power circuit, backward end earth resistance R7 is connected to reverse input end and the electricity of comparator U3
Between the negative pole of source circuit, the positive pole of the 3rd diode D3 connects with the outfan of comparator U3, the negative pole of the 3rd diode D3
Connect with the reset pin RESET of decoding enumerator U1.
Wherein, D1 plays pressure stabilization function, can be using the voltage at D1 two ends as benchmark, the electricity of the input in the same direction of comparator U3
Pressure keeps the voltage being D1 two ends, and its value keeps constant, and the output voltage VCC of power circuit is defeated after R6, R7 dividing potential drop simultaneously
Entering the reverse input end to comparator U3, when the fully charged normal work of battery, the terminal voltage in the same direction of U3 is less than backward end, therefore compares
Relatively device U3 output low level；When cell voltage declines, the terminal voltage in the same direction of U3 is higher than backward end, illustrates that battery electric quantity exhausts soon
, comparator output high level, D3 conducting makes U1 reset.
See Fig. 4 and Fig. 5, the 4th embodiment circuit diagram of control circuit plate of respectively present invention offer and showing of mine lamp
Being intended to, wherein Fig. 4 is the detailed description of control circuit plate shown in Fig. 1-3.
As it is shown in figure 5, the mine lamp that the present invention provides can include battery case 1, connecting cable 2 and lamp holder 3.Battery case 1
Including power circuit 10, lamp holder 3 includes control circuit plate 4, and control circuit plate 4 is provided with light source 5, and power circuit 10 is by even
Connect cable 2 to power to control circuit plate 4, and then it is luminous to control light source 5.It is provided with mobile division 7 on battery case 1, can facilitate
User's miner's hand lamp.Being additionally provided with shift knob 6 on lamp holder 3, shift knob 6 is connected with the touch-switch on control circuit plate,
Change between pass, the low light level, high light these three state for controlling mine lamp.Whole in order to avoid burning because of partial short-circuit
Mine lamp, power circuit 10 can include power supply 101 and the short-circuit protector 102 being sequentially connected in series, and when late-class circuit, (such as switch turns
Change circuit, control circuit for light source etc.) when having short-circuit conditions to occur, short-circuit protector can cut off output in time, in order to avoid burning it
His element, and short-circuit protector can recover normal after short circuit releases.It addition, in prior art, general selection lithium battery is made
For power supply 101, but, lithium battery along with the increase of the time of use, inducing capacity fading, in fact it could happen that the phenomenon of bulge, exist on fire,
The danger of blast, this is the biggest a kind of potential safety hazard for ore deposit underground work, therefore, present invention preferably uses lead-acid battery
As power supply 101.In addition, in prior art, mine lamp does not the most possess general electricity charging interface, but uses special mine lamp
Charging draw-in groove, then cannot charge in the place not having lamp-charging rack, and this makes the use of mine lamp be severely limited, and the present invention is excellent
Selection of land is provided with general electricity charging interface (such as column type charging inlet) on lamp holder 3, and this charging inlet is with power circuit just
Pole is connected with negative pole, can connect external power source to mine lamp charging by special charger.
As shown in Figure 4, the electric part of this mine lamp includes battery case internal circuit, control circuit plate and connects with control circuit plate
The light source connect, battery case internal circuit includes lead-acid battery and the short-circuit protector being sequentially connected in series, and control circuit plate includes that switch turns
Change circuit, control circuit for light source and low voltage protection circuit.
In conversion switch 41, using decoding enumerator U1, such as CD4017, its truth table and sequential chart are joined
Examine Fig. 2 to be described.U1 has Q0-Q910 outfan, when CLK pin has a rising edge pulse, just has in Q0-Q9
One is high level output, other low levels；During the original state that powers on, Q0 is high level, and other outfans are low levels；
RESET is reset pin, and high level is effective, and after reset, U1 is in the preliminary examination state that powers on.In control circuit for light source 42, use horizontal stroke
Flow control chip U2, U2 have VCC, five pins of GND, DRIVE, ISENSE, STND, and DRIVE is that outside connected switch pipe drives pin
(namely outfan), ISENSE is current sample input pin, and STND can control work and the shutoff of IC, when it is high level
IC normally works, and quits work for IC during low level.
The clock pins CLK of decoding enumerator U1 connects with the positive pole of power circuit with R1 via touch-switch successively, warp
Connected with the negative pole of power circuit by electric capacity of voltage regulation C1, also generate resistance R2 via high level and connect with the negative pole of power circuit,
Wherein C1 plays the effect of time delay, and R2 is pull down resistor.The shutoff of decoding enumerator U1 triggers pin Q0 via resistance R10 and three poles
The base stage connection of pipe T2, T2 is NPN pipe, and the colelctor electrode of T2 connects with the positive pole of power circuit via resistance R14, the colelctor electrode of T2
Also connecting with switch control pin STND of U2, the emitter stage of T2 connects with the negative pole of power circuit.Decoding enumerator U1's is strong
Light triggers pin Q1 and disconnects (the most vacant).The low light level of decoding enumerator U1 triggers the base stage of pin Q2 and audion T4 and connects, T4
Being PNP pipe, the emitter stage of T4 connects with the positive pole of power circuit with resistance R15 via resistance R16 successively, the colelctor electrode of T4 and U2
Current sample input pin ISENSE connection, the colelctor electrode of T4 is the most successively via R11 and R12 and R13 of parallel connection and power supply
The negative pole connection of circuit, the positive pole of D4 and D5 after series connection is connected to resistance R15 and the common node of resistance R16, after series connection
The negative pole of D4 and D5 is connected to the negative pole of power circuit.The reset trigger pin Q3 of decoding enumerator U1 is with decoding enumerator U1's
Reset pin RESET connects.The reset pin RESET of U1 also connects via the outfan of reverse diode D3 and comparator U3
Logical, the input in the same direction of comparator U3 connects with the positive pole of power circuit via resistance R5, and via diode D1 and power supply electricity
The negative pole connection on road, the reverse input end of comparator U3 connects with the positive pole of power circuit via resistance R6, and via resistance R7
Connect with the negative pole of power circuit.The outside connected switch pipe of U2 drives pin (outfan) to connect with the base stage of audion T3, and T3 is
NPN manages, and the emitter stage of T3 connects with the negative pole of power circuit via R12 with R13 in parallel, and the colelctor electrode of T3 is successively via inductance
L1 connects with the positive pole of power circuit with Light-Emitting Diode LED, successively via the positive pole of inductance L1 and electric capacity C4 Yu power circuit
Connection, also connects with the positive pole of power circuit via sustained diode 6, and wherein the colelctor electrode of T3 is connected with the positive pole of D6.
When the low-voltage protection point set during cell voltage is higher than low voltage protection device for electrophonic, normal circuit operation.Circuit power on
After not by switch time, the Q0 end of U1 is high level, T2 turn on, U2 end, light source does not works；When the 1st time by switch, Q1 is defeated
Going out high level, Q0, Q2, Q3 are low level, now T2 cut-off, and U2 normally works, and T4 is also switched on, and the electric current flowing through LED is less,
Mine lamp is in low light level state；Pressing switch 2nd time, Q2 uprises level, and T4 ends, and the electric current flowing through LED is relatively big, and mine lamp is in high light
State；Pressing switch 3rd time, Q3 exports high level, and U1 resets and returns to preliminary examination state, and mine lamp extinguishes；Again can be by weak by switch mine lamp
Light, high light, the cycle of states of extinguishing.During light fixture normally works, cell voltage can be gradually reduced, when voltage drops to protection point
(such as 5V) below time, U3 output high level makes U1 reset, mine lamp quits work.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, be permissible
Instructing relevant hardware by computer program to complete, described program can be stored in a computer read/write memory medium
In, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access
Memory, RAM) etc..
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the power of the present invention with this
Profit scope, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and weighs according to the present invention
Profit requires the equivalent variations made, and still falls within the scope that invention is contained.
Claims (10)
1. a mine lamp, including battery case, connecting cable and lamp holder, is provided with power circuit, described lamp holder in described battery case
Including control circuit plate and the light source that is connected to described control circuit plate, described power circuit is connected by described connecting cable
Described control circuit plate is to light source power supply, and then controls described light source luminescent, it is characterised in that described control circuit plate includes:
Conversion switch, described conversion switch includes handover module and occurs for producing the selection signal selecting signal
Device, the control end of described handover module is connected to selective signal generator, and described handover module is for according to described selection signal
The selection signal that generator produces switches between off state, high light state and low light level state；
Control circuit for light source, described control circuit for light source includes constant-current control module and light source switch, described constant-current control module
The end that controls be connected to the outfan of described handover module, the outfan of described constant-current control module is connected to the control of light source switch
End processed, described light source switch and light source are sequentially connected in series between the positive pole and negative pole of power circuit；Described constant-current control module is used
In time being off state when described handover module, control described light source switch and disconnect；Described constant-current control module is for working as institute
Stating handover module when being in high light state, output has the pulse of the first dutycycle, controls the conducting of described light source switch；Described perseverance
Flow control module is for when described handover module is in low light level state, and output has the pulse of the second dutycycle, controls described
Light source switch turns on, and described second dutycycle is less than described first dutycycle；
Wherein, described handover module includes decoding enumerator, and the control end of described constant-current control module includes switch control pin
With current sample input pin；
The clock pins of described decoding enumerator is connected to described selective signal generator, and the shutoff of described decoding enumerator triggers
Pin is connected with the switch control pin of described constant-current control module by phase inverter, and the high light of described decoding enumerator triggers and draws
Foot disconnects, and it is defeated with the current sample of described constant-current control module by rectification module that the low light level of described decoding enumerator triggers pin
Entering pin connection, the reset trigger pin of described decoding enumerator connects with the reset pin of described decoding enumerator.
Mine lamp the most according to claim 1, it is characterised in that the reset pin of described decoding enumerator and described constant current control
The switch control pin of molding block is all that high level is effective；
Described decoding enumerator, for turning off triggering pin output high level when reset state, then selects letter according to described
Number clock signal that generator sends, triggers pin, weak at described high light successively when the rising edge of described clock signal respectively
Light triggers pin and reset trigger pin exports high level, and when described shutoff triggering pin, high light trigger pin, low light level triggering
When pin and reset trigger pin have an output high level, other equal output low level.
Mine lamp the most according to claim 2, it is characterised in that described selective signal generator includes touch-switch, high electricity
Divide piezoresistance equally, high level generates resistance and electric capacity of voltage regulation, described touch-switch and high level divider resistance are sequentially connected in series in institute
Stating between clock pins and the positive pole of described power circuit of decoding enumerator, described electric capacity of voltage regulation is connected to described decoding counting
Between clock pins and the negative pole of power circuit of device, described high level generates resistance and is connected to the clock of described decoding enumerator
Between pin and the negative pole of power circuit.
Mine lamp the most according to claim 3, it is characterised in that described phase inverter includes the second audion, phase inverter base stage
Resistance and phase inverter collector resistance, described second audion is NPN pipe, and described phase inverter base resistance is connected to described second
The base stage of audion and the shutoff of described decoding enumerator trigger between pin, and described phase inverter collector resistance is connected to described
Between colelctor electrode and the positive pole of described power circuit of the second audion, the colelctor electrode of described second audion and described constant current control
The switch control pin connection of molding block, the described emitter stage of the second audion connects with the negative pole of power circuit.
Mine lamp the most according to claim 4, it is characterised in that described rectification module includes the 4th audion, stabilivolt, resistance
Anti-build-out resistor, sampling resistor, the first rectification and voltage division resistance and the second rectification and voltage division resistance, described 4th audion is PNP pipe,
The low light level of the base stage of described 4th audion and described decoding enumerator triggers pin and connect, described second rectification and voltage division resistance with
First rectification and voltage division resistance is sequentially connected in series between emitter stage and the positive pole of power circuit of described 4th audion, and the described 4th
The colelctor electrode of audion connects with the current sample input pin of described constant-current control module, described impedance matching resistor and sampling
Resistance is sequentially connected in series between colelctor electrode and the negative pole of power circuit of described 4th audion, and the positive pole of described stabilivolt connects
To described first rectification and voltage division resistance and the common node of the second rectification and voltage division resistance, the negative pole of described stabilivolt is connected to power supply
The negative pole of circuit.
Mine lamp the most according to claim 5, it is characterised in that described light source switch includes Buck conversion circuit, described
Buck conversion circuit includes that the 3rd audion, the first inductance, the 4th electric capacity and fly-wheel diode, described 3rd audion are
NPN manages, and the described base stage of the 3rd audion connects with the outfan of described constant-current control module, and described sampling resistor is connected to institute
Stating between emitter stage and the negative pole of power circuit of the 3rd audion, the first inductance and light source are sequentially connected in series in described three or three pole
Between colelctor electrode and the positive pole of power circuit of pipe, the first inductance and the 4th electric capacity are sequentially connected in series the collection at described 3rd audion
Between electrode and the positive pole of power circuit, the positive pole of fly-wheel diode and the colelctor electrode connection of the 3rd audion, connect afterflow two
The negative pole of pole pipe connects with the positive pole of power circuit.
Mine lamp the most according to claim 6, it is characterised in that described control circuit plate also includes low voltage protection circuit,
Described low voltage protection circuit include comparator, in the same direction hold high-tension resistive, backward end high-tension resistive, backward end earth resistance,
One diode and the 3rd diode, the described high-tension resistive of end in the same direction is connected to the input in the same direction of described comparator and described power supply
Between the positive pole of circuit, the positive pole of described first diode connects with the input in the same direction of described comparator, described one or two pole
The negative pole of pipe connects with the negative pole of described power circuit, and described backward end high-tension resistive is connected to the reverse input of described comparator
Between end and the positive pole of described power circuit, described backward end earth resistance is connected to reverse input end and the institute of described comparator
Stating between the negative pole of power circuit, the described positive pole of the 3rd diode connects with the outfan of described comparator, and the described 3rd 2
The negative pole of pole pipe connects with the reset pin of described decoding enumerator.
Mine lamp the most according to claim 7, it is characterised in that described power circuit includes power supply and the short circuit being sequentially connected in series
Protector.
Mine lamp the most according to claim 8, it is characterised in that described power supply is lead-acid battery.
Mine lamp the most according to claim 9, it is characterised in that be provided with charging inlet, described charging on described lamp holder
Mouth is connected with positive pole and the negative pole of described power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110453005.6A CN103188842B (en) | 2011-12-29 | 2011-12-29 | A kind of mine lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110453005.6A CN103188842B (en) | 2011-12-29 | 2011-12-29 | A kind of mine lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103188842A CN103188842A (en) | 2013-07-03 |
| CN103188842B true CN103188842B (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110453005.6A Expired - Fee Related CN103188842B (en) | 2011-12-29 | 2011-12-29 | A kind of mine lamp |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105186884B (en) * | 2015-10-27 | 2017-10-13 | 杭州中恒派威电源有限公司 | Using the Direct Conversion communicator and its control method of reversible transducer |
| 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 |
| CN115083358B (en) * | 2022-07-05 | 2024-06-28 | 珠海格力电器股份有限公司 | Display panel backlight control circuit and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2011
- 2011-12-29 CN CN201110453005.6A patent/CN103188842B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103188842A (en) | 2013-07-03 |
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