CN107388077A - A kind of flashlight - Google Patents
A kind of flashlight Download PDFInfo
- Publication number
- CN107388077A CN107388077A CN201610327042.5A CN201610327042A CN107388077A CN 107388077 A CN107388077 A CN 107388077A CN 201610327042 A CN201610327042 A CN 201610327042A CN 107388077 A CN107388077 A CN 107388077A
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- circuit
- battery
- voltage
- control
- chip
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of flashlight, including stack shell, cylinder head, cylinder tail and electric torch circuit；The cylinder head and cylinder tail and stack shell integrally connected, and it is separately positioned on the both ends of stack shell；Include conductive bodies in the stack shell, stack shell is divided into circuit board accommodating cavity and cell containing cavity side by side by the conductive bodies；The circuit board is arranged in the circuit board accommodating cavity of the stack shell, and extends to a tail from cylinder head；The battery is arranged on the battery containing intracavitary of stack shell, and is connected with circuit board；The LED luminescence components are arranged in cylinder head, and are connected with circuit board；The switch module is arranged in a tail, and is connected with circuit board.The battery of the present invention is directly connected without switch module with control circuit, avoid cell output current it is excessive and the problem of burn out switch module, the circuit board extends to a tail from cylinder head, easily multiple switch being laid in cylinder tail and designing multiple control circuits, whole circuit design is simple, wiring is convenient and swift.
Description
Technical field
The present invention relates to flashlight technical field, more particularly to a kind of flashlight.
Background technology
At present, flashlight has turned into the essential daily necessities of people's daily life, more as some mountain-climbings fan
The necessity carried with field survivorship fan.Traditional flashlight by control circuit, switch module and battery connect shape
Into closed control loop, the control to luminescence component is realized.But with advances in technology, people are to super brightness torch
More and more higher is pursued, existing flashlight gradually begins to use IMR lithium manganate batteries as power supply.Surpass because IMR batteries have
Big discharge current, its maximum discharge current is up to 30A, and the maximum operating currenbt for the switch module connected with IMR batteries is only
Only 3-4A, when the electric current in circuit is more than 4A, it is easy to which switch module is burnt out.As can be seen here, battery and switch module
The design of series connection can not meet the actual requirement of people.In addition, modern increasingly pursues the pluralistic function of flashlight, cause
The control signal transmission line of flashlight is set to become increasingly complex, if new signal circuit need to be designed or be set up, it is necessary to remove or again
Original series connection closed control loop is newly designed, it is complicated and very inconvenient.
The content of the invention
The invention reside in the shortcomings that overcoming prior art and insufficient, there is provided a kind of flashlight, it can prevent switch module from burning
Bad and circuit design is simple, it is convenient and swift to set up new signal circuit.
The present invention is achieved by the following technical solutions：A kind of flashlight, including stack shell, cylinder head, cylinder tail and flashlight
Circuit；
The cylinder head and cylinder tail and the stack shell integrally connected, and it is separately positioned on the both ends of the stack shell；
The electric torch circuit include battery, control circuit, linear voltage-stabilizing circuit, constant flow regulation circuit, switch module and
LED luminescence components；The battery is respectively to the control circuit, linear voltage-stabilizing circuit, constant flow regulation circuit and LED luminescence components
Power supply；The linear voltage-stabilizing circuit is connected with the battery and control circuit respectively, for the cell voltage to be changed,
To provide stable voltage to the control circuit；Switch module described in the signal input part of the control circuit connects, signal
Output end is connected with the LED luminescence components, for receiving the control signal of the switch module, and controls the LED to light
The state of component；The constant flow regulation circuit is connected with the battery and the LED luminescence components respectively, for by the battery
Voltage is changed, to provide stable electric current to the LED luminescence components；The switch module connects with the control circuit
Connect, for sending control signal to the control circuit；The LED luminescence components are connected with the control circuit, for basis
The control signal control LED of control circuit state；
Include conductive bodies in the stack shell, stack shell is divided into circuit board accommodating cavity and battery side by side by the conductive bodies
Accommodating cavity；The circuit board is arranged in the circuit board accommodating cavity of the stack shell, and extends to a tail from cylinder head；The battery is set
The battery containing intracavitary in the stack shell is put, and is connected with the circuit board；The LED luminescence components are arranged on the cylinder head
It is interior, and be connected by the first signal line group with the control circuit in the circuit board；The switch module is arranged on the cylinder tail
It is interior, and be connected by secondary signal line group with the control circuit in the circuit board.
Compared to prior art, battery of the invention is directly connected without switch module with control circuit, is avoided
Cell output current is excessive and the problem of burning out switch module；The circuit board extends to a tail from cylinder head, can be easily in cylinder
Tail lays multiple switch and designs multiple signal circuits, and can take into account high-power, high efficiency and End-Management light modulation simultaneously
The problem of, whole circuit design is simple, wiring is convenient and swift.
Further, cathode circuit plate, negative spring and conductive screw are additionally provided with the stack shell；The battery is just
Pole is connected by cathode circuit plate with the circuit board；The negative pole of the battery is connected with the negative spring, the negative pole bullet
Spring is connected with the conductive bodies；The conductive bodies are connected by the conductive screw with the circuit board.
Further, battery conveying end is offered on the cylinder tail；The battery cover lid is located on the battery conveying end, and
Connect with the cylinder tailspin.
Further, the sidepiece of the stack shell is provided with battery conveying end, and described battery cover one end is fixed on the cylinder tail,
The other end is locked by screw and cylinder head, is located at lid on the battery conveying end, by unscrewing or tightening the screw realization pair
The opening and closing of battery cover.
Further, the circuit board accommodating cavity and cell containing cavity are arranged side by side along direction where the stack shell short axle,
Accordingly, the battery and circuit board are also arranged side by side along direction where the stack shell short axle.
Further, it is steady to include linear regulator chip, diode, the first electric capacity of voltage regulation and second for the linear voltage-stabilizing circuit
Voltage capacitance；One end of the diode is connected with the positive pole of the battery；The other end electricity with the linear regulator chip respectively
Source input is connected with Enable Pin, and the end is grounded by first electric capacity of voltage regulation；The voltage of the linear regulator chip is defeated
Go out end to be connected with the power input of the control circuit, and the end is grounded by second electric capacity of voltage regulation.
Further, the control circuit includes microcontroller chip, mu balanced circuit, bleeder circuit, electricity display control electricity
Road and ultralow intednsity circuit；The microcontroller chip be provided with power input, battery detecting end, the first signal control terminal,
Secondary signal control terminal, Enable Pin and pwm signal output end；The power input of the microcontroller chip and the linear voltage stabilization
The voltage output end connection of circuit, and the external mu balanced circuit, to provide stable voltage into the control chip；It is described
The battery detecting end of microcontroller chip is connected by the bleeder circuit with battery, to detect the electricity of the battery；It is described micro-
First signal control terminal of control chip is connected with the electricity display control circuit, to show battery electric quantity size；It is described micro-
The secondary signal control terminal of control chip is connected with the ultralow intednsity circuit, the ultralow intednsity circuit with it is described
LED luminescence components connect, to realize the ultralow brilliance control to the LED luminescence components；The Enable Pin of the microcontroller chip
It is connected with the constant flow regulation circuit, to start or forbid the constant flow regulation circuit to work；The PWM letters of the microcontroller chip
Number output end and the constant flow regulation circuit downlink connection, to control the size of output current.
Further, the mu balanced circuit includes the 3rd electric capacity of voltage regulation and the 4th electric capacity of voltage regulation in parallel；The microcontroller
The power input of chip is grounded after being connected respectively with the 3rd electric capacity of voltage regulation and the 4th electric capacity of voltage regulation；The bleeder circuit bag
Include the first divider resistance, the second divider resistance and derided capacitors；The battery detecting end connection described first of the microcontroller chip
Divider resistance, first divider resistance are grounded after being connected with second divider resistance, first divider resistance it is another
One end connects the anode；The derided capacitors are connected in parallel on the second divider resistance both ends；The electricity display control
Circuit includes instruction triode, the first auxiliary resistance, the first Light-Emitting Diode and the second Light-Emitting Diode, the microcontroller chip
The first signal control terminal connection it is described instruction triode base stage, it is described instruction triode colelctor electrode pass through first auxiliary electricity
Resistance is connected with first light emitting diode and the second light emitting diode respectively；Described in the emitter stage connection of the instruction triode
The voltage output end of linear regulator chip；The ultralow intednsity circuit includes triode and the second auxiliary resistance；It is described micro-
The secondary signal control terminal of control chip connects the base stage of the triode, the colelctor electrode of the triode by auxiliary resistance with
The positive source input connection of the LED luminescence components, the emitter stage of the triode connect the linear regulator chip
Voltage output end.
Further, the constant flow regulation circuit includes DC-DC chips, FET, inductance, sampling resistor, voltage stabilizing two
Pole pipe, current sample chip, first resistor, second resistance and 3rd resistor；The power input of the DC-DC chips and described
Positive pole of the grid of FET respectively with the battery is connected；The voltage output end of the DC-DC chips and the field-effect
The drain electrode connection of pipe, after the source electrode of the FET is connected with inductance and sampling resistor, the positive pole with the LED luminescence components
Connection；The source electrode of the FET is grounded after the voltage-regulator diode；The positive source of the current sample chip is defeated
Enter end and negative input is connected in parallel on the sampling resistor both ends respectively, the output end of the current sample chip passes through the first electricity
Resistance, second resistance, the resistor network of 3rd resistor composition are connected with the feedback end of the DC-DC chips；The DC-DC chips
Feedback end is connected with the pwm signal output end of the control circuit, and according to the pwm signal come control input to the LED
The size of current of luminescence component.
Further, the switch module includes power switch and dimmer switch；One end of the power switch with it is described
The first signal input part connection of control circuit, other end ground connection；The of one end of the dimmer switch and the control circuit
Binary signal input connects, other end ground connection；The control circuit is controlled according to the open and-shut mode of power switch and dimmer switch
System is output to the pwm signal size of the constant flow regulation circuit, and then realizes the control to the LED luminescence components.
In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of flashlight in embodiment；
Fig. 2 is the schematic diagram of electric torch circuit in the embodiment of the present invention；
Fig. 3 is the circuit diagram of linear voltage-stabilizing circuit in the embodiment of the present invention；
Fig. 4 is the circuit diagram of control circuit in the embodiment of the present invention；
Fig. 5 is the circuit diagram of constant flow regulation circuit in the embodiment of the present invention；
Fig. 6 is the circuit diagram of component of being opened the light in the embodiment of the present invention；
Fig. 7 is the distressed structure schematic diagram of flashlight in embodiment.
Embodiment
Please refer to Fig. 1 to Fig. 6, Fig. 1 is the structural representation of flashlight in embodiment；Fig. 2 is the embodiment of the present invention
The schematic diagram of middle electric torch circuit；Fig. 3 is the circuit diagram of linear voltage-stabilizing circuit in the embodiment of the present invention；Fig. 4 is implementation of the present invention
The circuit diagram of control circuit in example；Fig. 5 is the circuit diagram of constant flow regulation circuit in the embodiment of the present invention；Fig. 6 is implementation of the present invention
Open the light the circuit diagram of component in example.
The flashlight of the present embodiment includes stack shell 11, cylinder first 12, cylinder tail 13 and electric torch circuit.
The cylinder first 12 and cylinder tail 13 with the integrally connected of stack shell 11, and are separately positioned on the two of the stack shell 11 respectively
End.
The electric torch circuit includes battery 1, linear voltage-stabilizing circuit 2, control circuit 3, constant flow regulation circuit 4, electricity and referred to
Show circuit 5, switch module 5 and LED luminescence components 7.The battery 1 is respectively to the control circuit 2, linear voltage-stabilizing circuit 3, perseverance
Stream regulation circuit 4 and LED luminescence components 6 are powered；The linear voltage-stabilizing circuit 2 connects with the battery 1 and control circuit 3 respectively
Connect, the voltage for the battery 1 to be exported is changed, to provide stable voltage to the control circuit 3；The control
The signal input part of circuit 3 is connected with the switch module 5, and signal output part is connected with the LED luminescence components 6, for connecing
The control signal of the switch module 5 is received, and controls the state of the LED luminescence components 6；The constant flow regulation circuit 4 is distinguished
It is connected with the battery 1 and the LED luminescence components 6, the voltage for the battery 1 to be exported is changed, with to described
LED luminescence components 6 provide stable electric current；The switch module 5 is connected with the control circuit 3, for electric to the control
Road 3 sends control signal；The LED luminescence components 6 are connected with the control circuit 3, for the control according to the control circuit 3
Signal control LED processed state.
In this example, the linear voltage-stabilizing circuit 2, control circuit 3, constant flow regulation circuit 4 are integrated on a circuit board 14.
Include conductive bodies 111 in the stack shell, the circuit board that stack shell is divided into arranged in parallel by the conductive bodies 111 holds
Chamber and cell containing cavity are put, the circuit board 14 is arranged in the circuit board accommodating cavity of the stack shell 11, and is extended from cylinder first 12
To cylinder tail 13.The battery 1 is arranged on the battery containing intracavitary of the stack shell 1, and is connected with the circuit board 14.The LED
Luminescence component 7 is arranged in the cylinder first 12, and passes through the first signal line group 141 and the control circuit 3 in the circuit board 14
Connection.The switch module 5 is arranged in the cylinder tail 13, and by secondary signal line group 142 and the circuit board 14
Control circuit 3 connects.
The circuit board accommodating cavity and cell containing cavity are arranged side by side along direction where the short axle of stack shell 11, accordingly,
The battery 1 and circuit board 14 are also arranged side by side along direction where the short axle of stack shell 11.When needing to increase control circuit, only
Need at cylinder tail 13, the control circuit set up and the cell panel 14 are directly connected to.
Cathode circuit plate 112, negative spring 113 and conductive screw 114 are additionally provided with the stack shell 11.The battery 1
Positive pole be connected by cathode circuit plate 112 with the circuit board 14.The negative pole of the battery 1 connects with the negative spring 113
Connect, the negative spring 113 is connected with the conductive bodies 111；The conductive bodies 111 by the conductive screw 113 with
The circuit board 14 connects.
In the present embodiment, in addition to battery cover 15；The conveying end of battery 1, the battery cover 15 are offered on the cylinder tail 13
Lid is located on the conveying end of battery 1, and is spun with the cylinder tail 13.
In the present embodiment, the switch module 5 includes power switch S1 and dimmer switch S2；The power switch S1 and institute
Dimmer switch S2 is stated to be connected with the control circuit 3 in the circuit board 14 by the secondary signal line group respectively.The light modulation
Switch S2 is provided with multiple brilliance control gears.
In the present embodiment, in addition to button cap 16；The button cap 16 lid is located on the switch module 5, and with it is described
Cylinder tail 13 spins.
The specific circuit connecting relation of electric torch circuit is as follows：
" ground connection " described in the present embodiment represents to be connected with the negative pole of the battery 1.
The linear voltage-stabilizing circuit 2 includes linear regulator chip U4, diode D4, the first electric capacity of voltage regulation C8 and the second voltage stabilizing
Electric capacity C7.In the present embodiment, the linear regulator chip U4 uses LP2985AIM5-3.0 chips, and it includes voltage input end
VIN, Enable Pin EN and voltage output end VOUT.One end of the diode D4 is connected with the positive pole of the battery 11；The other end
It is connected respectively with the power input VIN and Enable Pin EN of the linear regulator chip U4, and the end passes through first voltage stabilizing
Electric capacity C8 is grounded.The voltage output end VOUT of the linear regulator chip U4 is connected with the control circuit 3, and passes through described
Two electric capacity of voltage regulation C7 are grounded.The voltage that the battery 11 exports is through the linear regulator chip U4, diode D4, the first voltage stabilizing electricity
Hold the linear voltage-stabilizing circuit 2 of C8 and the second electric capacity of voltage regulation C7 compositions, be converted to the electricity of the suitable normal work of the control circuit 3
Pressure, and provide burning voltage to the control circuit 3.
The control circuit 3 includes microcontroller chip U3, mu balanced circuit, bleeder circuit, electricity display control circuit, ultralow
Intednsity circuit and temperature sensing circuit.The microcontroller chip U3 is provided with power input VDD, battery detecting end PC4, the
One signal control terminal PB5, secondary signal control terminal PB3, temperature detection end PB4, Enable Pin PB2, pwm signal output end PB1.Institute
The power input for stating microcontroller chip U3 is connected with the voltage output end VOUT of the linear voltage-stabilizing circuit 2, and external described
Mu balanced circuit, to provide stable voltage into the control chip.The test side of battery 1 of the microcontroller chip U3 passes through institute
State bleeder circuit to be connected with battery 1, to detect the electricity of the battery 1.The first signal control terminal of the microcontroller chip U3
PB5 is connected with the electricity display control circuit, to show the electricity size of battery 1.The second letter of the microcontroller chip U3
Number control terminal PB3 is connected with the ultralow intednsity circuit 3, the ultralow intednsity circuit 3 and the LED luminescence components
6 connections, to realize the ultralow brilliance control to the LED luminescence components 6.The temperature detection end PB4 of the microcontroller chip with
The temperature sensing circuit connection, to obtain the operating temperature of circuit.The Enable Pin PB2 of the microcontroller chip U3 and the perseverance
Stream regulation circuit 4 connects, to start or forbid the constant flow regulation circuit 4 to work；The pwm signal of the microcontroller chip U3 is defeated
Go out to hold PB1 to be connected with the constant flow regulation circuit 4, to control the size of output current.
The mu balanced circuit includes the 3rd electric capacity of voltage regulation C10 and the 4th electric capacity of voltage regulation C11 in parallel；The microcontroller chip
U3 power input VDD is grounded after being connected respectively with the 3rd electric capacity of voltage regulation C10 and the 4th electric capacity of voltage regulation C11.
The bleeder circuit includes the first divider resistance R9, the second divider resistance R10 and derided capacitors C13；The micro-control
Coremaking piece U3 the PC4 connections of battery detecting end the first divider resistance R9, the first divider resistance R9 with described second point
It is grounded after piezoresistance R10 series connection, the other end of the first divider resistance R9 connects the positive pole of battery 1；The partial pressure electricity
Hold C13 and be connected in parallel on the second divider resistance R10 both ends.
The electricity display control circuit includes instruction triode Q3, the first auxiliary resistance R8, the first Light-Emitting Diode D2
With the second Light-Emitting Diode D3；The first signal control terminal PB5 connections instruction triode Q3's of the microcontroller chip U3
Base stage, the colelctor electrode of the instruction triode Q3 by the first auxiliary resistance R8 respectively with the first light emitting diode D2 and the
Two light emitting diode D3 connections；The emitter stage of the instruction triode Q3 connects the voltage output end of the linear regulator chip.
The voltage that the battery 1 exports after the first divider resistance R9 and the second divider resistance R10 partial pressures by inputting the micro-control
In coremaking piece U3, to obtain the electricity size of the battery 1, and exported in the first signal control terminal：When the first signal control terminal
During PB5 output HIGH voltages, the battery electric quantity indicating circuit 5 shows battery electric quantity；When exporting low-voltage, the battery electric quantity
Indicating circuit 5 is closed battery electric quantity and shown.
The ultralow intednsity circuit includes triode Q2 and the second auxiliary resistance R6.The of the microcontroller chip U3
Binary signal control terminal PB3 connections triode Q2 base stage, the colelctor electrode of the triode Q2 pass through auxiliary resistance R6 and institute
The positive source input connection of LED luminescence components 7 is stated, the emitter stage of the triode Q2 connects the linear regulator chip U4
Voltage output end VOUT.When the secondary signal control terminal PB3 output HIGH voltages of the microcontroller chip U3, the LED hairs
Optical assembly 7 opens ultralow bright illumination；When exporting low-voltage, the LED luminescence components 7 close ultralow bright illumination.
The temperature sensing circuit includes thermistor (not shown), detection resistance R7 and detection electric capacity C9.It is described micro-
Control chip U3 temperature detection end PB4 is connected with the thermistor, the detection that the thermistor other end passes through parallel connection
Resistance R7 is grounded after being connected with detection electric capacity C9, and the circuit operating temperature of detection is sent in the microcontroller chip U3.
In addition, the microcontroller chip U3 is additionally provided with reset terminal PA1 and test lead PA0；The output end of extraneous reseting module
It is connected with the reset terminal PA1 of the microcontroller chip U3, and with being grounded after the 5th electric capacity of voltage regulation C13.Extraneous test module
Output end be connected with the test lead PA0 of the microcontroller chip U3.
The constant flow regulation circuit 4 includes DC-DC chips U1, FET Q1, the 3rd electric capacity of voltage regulation C1, the 4th voltage stabilizing electricity
Hold C2, inductance L1, sampling resistor R5, voltage-regulator diode D1, the first electric capacity C4, the second electric capacity C5, current sample chip U2, first
Resistance R2, second resistance R3 and 3rd resistor R4.
The DC-DC chips U1 uses XC6366B103MR chips, and it includes power input VDD, voltage output end
EXT, Enable Pin EN and pressure feedback port FB.The power input of the grid of the FET Q1 and the DC-DC chips U1
Positive poles of the VDD respectively with the battery 1 is connected；The positive pole of the battery 1 passes through the 3rd electric capacity of voltage regulation C1 and the 4th voltage stabilizing
Electric capacity C2 is grounded.The voltage output end EXT of the DC-DC chips U1 is connected with the drain electrode of the FET Q1, the field effect
Should pipe Q1 source electrode be connected successively with inductance L1 and sampling resistor R5 after, be connected with the positive pole of the LED luminescence components 7, it is described
FET Q1 source electrode is also grounded after voltage-regulator diode D1.The inductance L1 and the electricity of the first electric capacity C4 in parallel and second
After holding C5 connections, it is connected with the negative pole of the LED luminescence components 7.The negative pole ground connection of the LED luminescence components 7.The DC-DC
Chip U1, FET Q1, voltage-regulator diode D1, inductance L1 form typical BUCK circuits, realize the voltage for exporting battery 1
Being transformed into makes the operating voltage of the normal work of LED luminescence components 7.
The positive source input and negative input of the current sample chip U2 is connected in parallel on respectively described uses resistance
R5 both ends, the output end of the current sample chip by first resistor R2, second resistance R3,3rd resistor R4 compositions resistance
Network, it is connected with the pressure feedback port FB of the DC-DC chips U1, and the voltage signal V1 that will convert into inputs back the DC-
In DC chips U1.The integration that the pressure feedback port FB of the DC-DC chips U1 is made up of first resistor R2 and second resistance R3
Network is connected with the pwm signal output end of the microcontroller chip U3, and the voltage signal V2 that microcontroller chip U3 is exported is defeated
Enter into the DC-DC chips.The DC-DC chips U1 is output to according to voltage signal V1 and voltage signal V2 Signal Regulation
The voltage of the LED luminescence components 7, and then realize and the constant current of LED luminescence components 7 is adjusted.
The switch module 5 includes power switch S1 and dimmer switch S2；One end of the power switch S1 with it is described micro-
Control chip U3 the first signal input part PB7 connections, other end ground connection；One end of the dimmer switch S2 and the microcontroller
Chip U3 secondary signal input PB6 connections, other end ground connection.The microcontroller chip U3 is according to power switch S1 and light modulation
S2 open and-shut mode is switched to control the pwm signal size of output, and then realizes the control to LED luminescence components 7.
In use, opening battery cover 15, battery 1 is put into the battery containing intracavitary；Cover battery cover 15 and rotate, make
Battery cover 15 is fixed with the cylinder tail 11.Open the power switch S1 to power to circuit, adjust the shelves of the dimmer switch S2
Position, the size of current of the LED luminescence components is passed through with control, and then realizes the control of flashlight brightness.
Compared to prior art, battery of the invention is directly connected without switch module with control circuit, is avoided
Cell output current is excessive and the problem of burning out switch module；The circuit board extends to a tail from cylinder head, can be easily in cylinder
Tail lays multiple switch and designs multiple signal circuits, and can take into account high-power, high efficiency and End-Management light modulation simultaneously
The problem of.
Referring to Fig. 7, it is the distressed structure schematic diagram of flashlight in the embodiment of the present invention.As the further of the present invention
Optimization, the side of the stack shell 11 ' are provided with the conveying end of battery 1, and described one end of battery cover 15 ' is fixed on the cylinder tail 13, separately
One end is located on the conveying end of battery 1, by unscrewing or tightening the screw reality by first 12 locking of screw 17 ' and cylinder with lid
Now to the opening and closing of battery cover 15 ', the control circuit of cylinder tail 13 and battery conveying end are opened independently of each other, can be convenient and swift
Ground takes out battery, easily can also be connected up at cylinder tail 13.
In addition, the flashlight shown in Fig. 7 includes cathode traces plate 115 ', the negative pole of the battery 1 and the negative pole bullet
After spring 113 connects, directly it can be connected by the cathode traces plate 115 ' with the circuit board 14.
The invention is not limited in above-mentioned embodiment, if the various changes or deformation to the present invention do not depart from the present invention
Spirit and scope, if these changes and deformation belong within the scope of the claim and equivalent technologies of the present invention, then this hair
It is bright to be also intended to comprising these changes and deformation.
Claims (10)
1. a kind of flashlight, it is characterised in that including stack shell, cylinder head, cylinder tail and electric torch circuit；
The cylinder head and cylinder tail and the stack shell integrally connected, and it is separately positioned on the both ends of the stack shell；
The electric torch circuit includes battery, control circuit, linear voltage-stabilizing circuit, constant flow regulation circuit, switch module and LED hairs
Optical assembly；The battery is powered to the control circuit, linear voltage-stabilizing circuit, constant flow regulation circuit and LED luminescence components respectively；
The linear voltage-stabilizing circuit is connected with the battery and control circuit respectively, for the cell voltage to be changed, with to
The control circuit provides stable voltage；The signal input part of the control circuit is connected with the switch module, and signal is defeated
Go out end to be connected with the LED luminescence components, for receiving the control signal of the switch module, and control the LED to light group
The state of part；The constant flow regulation circuit is connected with the battery and the LED luminescence components respectively, for the battery is electric
Pressure is changed, to provide stable electric current to the LED luminescence components；The switch module is connected with the control circuit,
For sending control signal to the control circuit；The LED luminescence components are connected with the control circuit, for according to
The control signal control LED of control circuit state；
Include conductive bodies in the stack shell, stack shell is divided into circuit board accommodating cavity and battery containing side by side by the conductive bodies
Chamber；The circuit board is arranged in the circuit board accommodating cavity of the stack shell, and extends to a tail from cylinder head；The battery is arranged on
The battery containing intracavitary of the stack shell, and be connected with the circuit board；The LED luminescence components are arranged in the cylinder head, and
It is connected with the control circuit in the circuit board；The switch module is arranged in the cylinder tail, and with the circuit board
Control circuit connects.
2. flashlight according to claim 1, it is characterised in that cathode circuit plate, negative pole are additionally provided with the stack shell
Spring and conductive screw；The positive pole of the battery is connected by cathode circuit plate with the circuit board；The negative pole of the battery with
The negative spring connection, the negative spring are connected with the conductive bodies；The conductive bodies pass through the conductive screw
It is connected with the circuit board.
3. flashlight according to claim 1, it is characterised in that offer battery conveying end on the cylinder tail；The electricity
Chi Gai lids are located on the battery conveying end, and are connect with the cylinder tailspin.
4. flashlight according to claim 1, it is characterised in that the sidepiece of the stack shell is provided with battery conveying end, described
Battery cover one end is fixed on the cylinder tail, and the other end is locked by screw and cylinder head, is located at lid on the battery conveying end, is led to
Cross the opening and closing for unscrewing or tightening the screw realization to battery cover.
5. flashlight according to claim 1, it is characterised in that the circuit board accommodating cavity and cell containing cavity are described in
Direction where stack shell short axle is arranged side by side, accordingly, the battery and circuit board also along direction where the stack shell short axle side by side
Set.
6. electric torch circuit according to claim 1, it is characterised in that the linear voltage-stabilizing circuit includes linear voltage stabilization core
Piece, diode, the first electric capacity of voltage regulation and the second electric capacity of voltage regulation；One end of the diode is connected with the positive pole of the battery；Separately
One end is connected with the power input and Enable Pin of the linear regulator chip respectively, and the end passes through first electric capacity of voltage regulation
Ground connection；The voltage output end of the linear regulator chip is connected with the power input of the control circuit, and the end passes through institute
State the second electric capacity of voltage regulation ground connection.
7. electric torch circuit according to claim 1, it is characterised in that the control circuit includes microcontroller chip, steady
Volt circuit, bleeder circuit, electricity display control circuit and ultralow intednsity circuit；The microcontroller chip is provided with power input
End, battery detecting end, the first signal control terminal, secondary signal control terminal, Enable Pin and pwm signal output end；The microcontroller
The power input of chip is connected with the voltage output end of the linear voltage-stabilizing circuit, and an external mu balanced circuit, with to
Stable voltage is provided in the microcontroller chip；The battery detecting end of the microcontroller chip passes through the bleeder circuit and electricity
The positive pole connection in pond, to detect the electricity of the battery；The first signal control terminal and the electricity of the microcontroller chip show
Show that control circuit connects, to show battery electric quantity size；The secondary signal control terminal of the microcontroller chip with it is described ultralow bright
Control circuit connection is spent, the ultralow intednsity circuit is connected with the LED luminescence components, and the LED is lighted to realize
The ultralow brilliance control of component；The Enable Pin of the microcontroller chip is connected with the constant flow regulation circuit, to start or forbid
The constant flow regulation circuit work；The pwm signal output end of the microcontroller chip and the constant flow regulation circuit downlink connection, with
Control the size of output current.
8. electric torch circuit according to claim 6, it is characterised in that the mu balanced circuit includes the 3rd voltage stabilizing in parallel
Electric capacity and the 4th electric capacity of voltage regulation；The power input of the microcontroller chip respectively with the 3rd electric capacity of voltage regulation and the 4th voltage stabilizing
It is grounded after capacitance connection；The bleeder circuit includes the first divider resistance, the second divider resistance and derided capacitors；The microcontroller
The battery detecting end of chip connects first divider resistance, after first divider resistance is connected with second divider resistance
Ground connection, the other end of first divider resistance connect the anode；The derided capacitors are connected in parallel on second partial pressure
Resistance both ends；The electricity display control circuit includes instruction triode, the first auxiliary resistance, the first Light-Emitting Diode and second
Light-Emitting Diode；The base stage of the first signal control terminal connection instruction triode of the microcontroller chip, the instruction three
The colelctor electrode of pole pipe is connected with first light emitting diode and the second light emitting diode respectively by the first auxiliary resistance；It is described
Indicate that the emitter stage of triode connects the voltage output end of the linear regulator chip；The ultralow intednsity circuit includes three
Pole pipe and the second auxiliary resistance；The base stage of the secondary signal control terminal connection triode of the microcontroller chip, described three
The colelctor electrode of pole pipe is connected by auxiliary resistance with the positive source input of the LED luminescence components, the hair of the triode
Emitter-base bandgap grading connects the voltage output end of the linear regulator chip.
9. electric torch circuit according to claim 1, it is characterised in that the constant flow regulation circuit include DC-DC chips,
FET, inductance, sampling resistor, voltage-regulator diode, current sample chip, first resistor, second resistance and 3rd resistor；Institute
Positive pole of the grid respectively with the battery of the power input and the FET of stating DC-DC chips is connected；The DC-DC
The voltage output end of chip is connected with the drain electrode of the FET, and source electrode and the inductance and sampling resistor of the FET connect
After connecing, it is connected with the positive pole of the LED luminescence components；The source electrode of the FET is grounded after the voltage-regulator diode；
The positive source input and negative input of the current sample chip are connected in parallel on the sampling resistor both ends, the electricity respectively
Flow resistor network and the DC-DC chips that the output end of sampling A/D chip is made up of first resistor, second resistance, 3rd resistor
Feedback end connection；The feedback end of the DC-DC chips is connected with the pwm signal output end of the control circuit, and according to institute
State pwm signal and carry out control input to the size of current of the LED luminescence components.
10. electric torch circuit according to claim 1, it is characterised in that the switch module includes power switch and tune
Photoswitch；One end of the power switch is connected with the first signal input part of the control circuit, other end ground connection；The tune
One end of photoswitch is connected with the secondary signal input of the control circuit, other end ground connection；The control circuit is according to electricity
The open and-shut mode of source switch and dimmer switch is output to the pwm signal size of the constant flow regulation circuit to control, and then realizes
Control to the LED luminescence components.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327042.5A CN107388077B (en) | 2016-05-17 | 2016-05-17 | Electric torch |
| PCT/CN2016/085154 WO2017197673A1 (en) | 2016-05-17 | 2016-06-07 | Flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327042.5A CN107388077B (en) | 2016-05-17 | 2016-05-17 | Electric torch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107388077A true CN107388077A (en) | 2017-11-24 |
| CN107388077B CN107388077B (en) | 2021-11-02 |
Family
ID=60324698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610327042.5A Active CN107388077B (en) | 2016-05-17 | 2016-05-17 | Electric torch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107388077B (en) |
| WO (1) | WO2017197673A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240885A (en) * | 2019-07-19 | 2021-01-19 | 上海锐瞻智能科技有限公司 | Portable potential blood stain detector |
| US10938058B2 (en) | 2017-11-29 | 2021-03-02 | Wenjie Li | Battery capable of bidirectional output |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193882A (en) * | 2018-11-27 | 2019-01-11 | 惠州市凯业盛能源有限公司 | A kind of management of charging and discharging circuit and rechargeable battery |
| CN110324942A (en) * | 2019-08-10 | 2019-10-11 | 重庆梅安森科技股份有限公司 | Intelligent mine lamp |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107388077B (en) | 2021-11-02 |
| WO2017197673A1 (en) | 2017-11-23 |
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