CN103687243B - A kind of LED flashlight - Google Patents
A kind of LED flashlight Download PDFInfo
- Publication number
- CN103687243B CN103687243B CN201310699321.0A CN201310699321A CN103687243B CN 103687243 B CN103687243 B CN 103687243B CN 201310699321 A CN201310699321 A CN 201310699321A CN 103687243 B CN103687243 B CN 103687243B
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- 230000005669 field effect Effects 0.000 claims abstract description 27
- 238000004020 luminiscence type Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
Abstract
The invention belongs to lighting apparatus technical field, provide a kind of LED flashlight, including a head, stack shell, battery, snoot, LED lamp and cylinder tail, in cylinder head, circuit board is installed, LED lamp electrically connects with circuit board, circuit on circuit board includes chip U1, luminous body LED1, luminous body LED2, luminous body LED3, dual-gate field-effect pipe Q1, dual-gate field-effect pipe Q2, variable resistance L1, unidirectional diode D2, unidirectional diode D3, zener diode DZ1, resistance R1, resistance R4, resistance R6, resistance R7, resistance R2, resistance R3, electric capacity C3, electric capacity C7 and electric capacity C5.It is an advantage of the current invention that by the luminescence of LED in chip controls torch lamp, can control that LED is the brightest and flashing function, voltage stabilizing is good simultaneously, ensure that safety in utilization and stability, whole circuit structure is simple, and response speed is fast, possesses preferable practicality and compatibility, heat dispersion is good, improves the LED utilization rate to power supply.
Description
Technical field
The invention belongs to lighting apparatus technical field, be specifically related to a kind of LED flashlight.
Background technology
Light emitting diode (Light emitting diode, LED) is 21 century to have very much competitiveness
Novel solid light source, have effect height, light colour purity, life-span length, reliability and durability, adjust flexibly,
The advantages such as compact conformation, running voltage are low.The most perfect, with LED as light source along with LED technology
Illuminator be on the increase, use LED both can reduce the volume of illuminator as light source, again may be used
Extend the life-span of illuminator.But existing torch lamp also has employing LED type, but internal electric
Road not only structure is complicated, and radiating effect is poor, does not has corresponding protective measure, it is impossible to well realize shining
Penetrate and flicker effect, and spread of voltage, easily cause whole torch lamp and damage, it is therefore desirable to
Existing LED flashlight is improved.
Summary of the invention
The technical problem to be solved is the present situation for prior art, and provides a kind of structure
Simply, easy to use, heat dispersion is good, whole circuit safety in utilization and the LED of good stability
Torch lamp.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of LED flashlight,
Including a head, stack shell, battery, snoot, LED lamp and cylinder tail, described stack shell and cylinder head it
Between button connecting portion, described LED lamp is arranged in cylinder head, and described snoot is arranged on a head
Front portion, have in described stack shell for battery load receiving space, cylinder WEILIAN is connected on the tail of stack shell
Portion, is provided with circuit board in described cylinder head, and LED lamp electrically connects with circuit board, it is characterised in that
The described circuit on circuit board includes chip U1, luminous body LED1, luminous body LED2, luminous body
LED3, dual-gate field-effect pipe Q1, dual-gate field-effect pipe Q2, variable resistance L1, unidirectional diode
D2, unidirectional diode D3, zener diode DZ1, resistance R1, resistance R4, resistance R6, resistance
R7, resistance R2, resistance R3, electric capacity C3, electric capacity C7 and electric capacity C5, described resistance R1, can
Power transformation resistance L1, unidirectional diode D2, luminous body LED1, luminous body LED2 and luminous body LED3 series connection
One end that connecting has is connected on the 2nd foot of chip U1, and the other end is connected to dual-gate field-effect pipe Q2
Drain on, zener diode DZ1 one end electrically connects with the 2nd foot of resistance R1 and U1 respectively, electricity
Hold C3 to be also connected on the 2nd foot of chip U1 and be simultaneously connected on the 8th foot of chip U1, resistance
R4 and electric capacity C7 is connected in series rear one end and is connected on the 3rd foot of chip U1, resistance R4 and electric capacity
C7 is connected in series rear other end ground connection, and unidirectional diode D3 and resistance R6 is connected in parallel rear and and resistance
R7 is connected in series, and the 5th foot of chip U1 electrically connects unidirectional diode D3 and resistance R6 simultaneously, unidirectional
The common other end of diode D3 and resistance R6 is connected to the grid level of dual-gate field-effect pipe Q1, double grid
The drain of pole field effect transistor Q1 is connected electrically between variable resistance L1 and unidirectional diode D2, resistance R2
It is electrically connected to after being connected in parallel with R3 on the 6th foot of chip U6, dual-gate field-effect pipe Q1 source class electricity
Connect resistance R2 and resistance R3, chip U1 the 7th foot electrical connection electric capacity C5, zener diode DZ1,
Electric capacity C3, electric capacity C7, electric capacity C4, resistance R7, resistance R2, resistance R3, electric capacity C5 connect jointly
Connect and ground connection.
The measure taked for optimizing such scheme specifically includes:
In above-mentioned a kind of LED flashlight, this circuit also includes electric capacity C1, electric capacity C2, resistance
R9, electric capacity C6, zener diode DZ2 and resistance R11, described electric capacity C1, electric capacity C2 and
Electric capacity C6 is connected in parallel, resistance R11 and after electric capacity C1 parallel connection end jointly be connected respectively VCC and
Another after variable resistance L1, resistance R11 are in parallel with electric capacity C1 holds ground connection, zener diode jointly
One end after DZ2 electrically connects with resistance R9 is connected respectively on the 4th foot and the electric capacity C4 of chip U1.
In above-mentioned a kind of LED flashlight, this circuit also includes resistance R8 and resistance R5, resistance
One end of R5 electrically connects with resistance R8 one end, and the other end is distinguished ground connection and electrically connects with electric capacity C6,
The other end of resistance R8 is connected respectively on the electrical connection of chip U1 the 4th foot and electric capacity C4.
In above-mentioned a kind of LED flashlight, this circuit also includes chip U2, chip U3, resistance
R6, resistance R10, electric capacity C8, electric capacity C9, electric capacity C10 and unidirectional diode D3, described core
1st foot of sheet U3 electrically connects with the grid level of dual-gate field-effect pipe Q2 after being connected in series with resistance R6,
It is electrically connected with unidirectional diode D3 between described chip U2 the 3rd foot and chip U3 the 5th foot, described
Chip U2 the 3rd foot electrically connect electric capacity C9 simultaneously, described chip U5 the 3rd foot electrically connects electricity simultaneously
Hold C10, between described chip U2 the 3rd foot and chip U3 the 4th foot, be electrically connected with resistance R10, electricity
Resistance R10 electrically connects with electric capacity C9, between described chip U2 the 2nd foot and chip U3 the 3rd foot simultaneously
It is electrically connected with wherein a termination VCC, the source class of dual-gate field-effect pipe Q2 of electric capacity C8, electric capacity C8
Being electrically connected resistance R9, resistance R8 and resistance R5, electric capacity C8, electric capacity C9, electric capacity C10 are altogether
With connecting ground connection.
Compared with prior art, it is an advantage of the current invention that by LED in chip controls torch lamp
Luminescence, can control that LED is the brightest and flashing function, and voltage stabilizing simultaneously is good, it is ensured that use peace
Full property and stability, whole circuit structure is simple, and response speed is fast, possesses preferable practicality and holds concurrently
Capacitive, heat dispersion is good, improves the LED utilization rate to power supply.
Accompanying drawing explanation
Fig. 1 is this LED flashlight overall structure schematic diagram；
Fig. 2 is the A-A internally sectional structure schematic diagram of Fig. 1；
Fig. 3 is the internal circuit schematic diagram of this LED flashlight.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is made into one
The description of step, but the present invention is not limited to these embodiments.
In figure, cylinder 1；Stack shell 2；Battery 3；Snoot 4；LED lamp 5；Cylinder tail 6；Manipulation
Button 7；Accommodate space 8；Circuit board 9；Button connecting portion 10.
As depicted in figs. 1 and 2, this LED flashlight, including cylinder 1, stack shell 2, battery 3,
Snoot 4, LED lamp 5 and cylinder tail 6, button connecting portion 10 between stack shell 2 and cylinder 1,
Be provided with on button connecting portion 10 manipulation button 7, the most conveniently carry out manipulator's electric torch unlatching and
Closing LED lamp 5 to be arranged in cylinder 1, snoot 4 is arranged on the front portion of cylinder 1, so makes
Obtain snoot 4 and use the transparent configuration with recess, which enhance light penetration, have in stack shell 2
The receiving space 8 loaded for battery 3, cylinder tail 6 is connected to the afterbody of stack shell 2, in described cylinder 1
Being provided with circuit board 9, LED lamp 5 electrically connects with circuit board 9.
As it is shown on figure 3, the effect of present invention maximum is the design of whole circuit structure, on circuit board 9
Circuit includes chip U1, luminous body LED1, luminous body LED2, luminous body LED3, dual-gate field-effect
Pipe Q1, dual-gate field-effect pipe Q2, variable resistance L1, unidirectional diode D2, unidirectional diode D3,
Zener diode DZ1, resistance R1, resistance R4, resistance R6, resistance R7, resistance R2, resistance R3, electricity
Hold C3, electric capacity C7 and electric capacity C5, resistance R1, variable resistance L1, unidirectional diode D2, luminous body
One end that LED1, luminous body LED2 and luminous body LED3 are connected in series with is connected to the 2nd foot of chip U1
On, the other end is connected in the drain of dual-gate field-effect pipe Q2, zener diode DZ1 one end respectively with
The 2nd foot electrical connection of resistance R1 and U1, electric capacity C3 is also connected on the 2nd foot of chip U1 and is simultaneously connected with
On the 8th foot of chip U1, resistance R4 and electric capacity C7 is connected in series rear one end and is connected to the 3rd of chip U1 the
On foot, resistance R4 and electric capacity C7 is connected in series rear other end ground connection, and unidirectional diode D3 and resistance R6 is also
After connection connects and be connected in series with resistance R7, the 5th foot of chip U1 electrically connect simultaneously unidirectional diode D3 and
Resistance R6, the common other end of unidirectional diode D3 and resistance R6 is connected to dual-gate field-effect pipe Q1's
Grid level, the drain of dual-gate field-effect pipe Q1 is connected electrically between variable resistance L1 and unidirectional diode D2,
Resistance R2 and R3 is electrically connected to after being connected in parallel on the 6th foot of chip U6, dual-gate field-effect pipe Q1 source class
Electric connection resistance R2 and resistance R3, chip U1 the 7th foot electrical connection electric capacity C5, zener diode DZ1,
Electric capacity C3, electric capacity C7, electric capacity C4, resistance R7, resistance R2, resistance R3, electric capacity C5 connect also jointly
Ground connection, zener diode DZ1 makes so to make voltage stabilizing, current stabilization synchronization control, dual-gate field-effect pipe
The control of Q1 receives slope linear signal, under the effect of slope linear signal so that be connected to bigrid
The resistance value of the variable resistance L1 of field effect transistor Q1 changes, and variable resistance L1 can be according to double here
The magnitude of voltage of the drain of gate field effect pipe Q1 thus adjust resistance value automatically, so that flowing through LED
Forward current keep a relatively steady state, to regulate the size of feedback voltage, reach simultaneously
Adjust and stablize the purpose of the operating current of LED, running voltage, improve the efficiency of illuminator,
Extend the service life of illuminator.
This circuit also include electric capacity C1, electric capacity C2, resistance R9, electric capacity C6, zener diode DZ2 and
Resistance R11, described electric capacity C1, electric capacity C2 and electric capacity C6 be connected in parallel, resistance R11 and electric capacity C1
After parallel connection one end jointly connects VCC and variable resistance L1, after resistance R11 is in parallel with electric capacity C1 respectively
Another holds ground connection, the one end after zener diode DZ2 electrically connects with resistance R9 to be connected respectively to chip jointly
On 4th foot of U1 and electric capacity C4, this circuit also includes resistance R8 and resistance R5, one end of resistance R5 and electricity
The electrical connection of resistance R8 one end, the other end is distinguished ground connection and electrically connects with electric capacity C6, the other end of resistance R8
Being connected respectively on the electrical connection of chip U1 the 4th foot and electric capacity C4, current signal is filtered by each electric capacity
Ripple, it is ensured that stationarity, this circuit also includes chip U2, chip U3, resistance R6, resistance R10, electricity
Hold C8, electric capacity C9, electric capacity C10 and unidirectional diode D3, the 1st foot and the resistance of described chip U3
R6 electrically connects with the grid level of dual-gate field-effect pipe Q2 after being connected in series, described chip U2 the 3rd foot and core
Being electrically connected with unidirectional diode D3 between sheet U3 the 5th foot, described chip U2 the 3rd foot electrically connects electricity simultaneously
Holding C9, described chip U5 the 3rd foot electrically connects electric capacity C10, described chip U2 the 3rd foot and chip simultaneously
It is electrically connected with resistance R10, resistance R10 between U3 the 4th foot to electrically connect with electric capacity C9, described chip simultaneously
A wherein termination VCC of electric capacity C8, electric capacity C8 it is electrically connected with between U2 the 2nd foot and chip U3 the 3rd foot, double
The source class of gate field effect pipe Q2 is electrically connected resistance R9, resistance R8 and resistance R5, electric capacity C8, electricity
Hold C9, electric capacity C10 and jointly connect ground connection, so make to control LED response speed fast, possess preferably
Practicality and compatibility, heat dispersion is good, improves the LED utilization rate to power supply.
Specific embodiment described herein is only to present invention spirit explanation for example.The present invention
Person of ordinary skill in the field described specific embodiment can be made various amendment or
Supplement or use similar mode to substitute, but without departing from the defined scope of spirit of the present invention.
Claims (1)
1. a LED flashlight, including a head, stack shell, battery, snoot, LED lamp
And cylinder tail, between described stack shell with cylinder head, button is connected, and described LED lamp is arranged on a head
In, described snoot is arranged on the front portion of cylinder head, has the appearance loaded for battery in described stack shell
Receiving space, cylinder WEILIAN is connected on the afterbody of stack shell, is provided with circuit board, LED lamp in described cylinder head
Electrically connect with circuit board, it is characterised in that the described circuit on circuit board includes chip U1, luminescence
Body LED1, luminous body LED2, luminous body LED3, dual-gate field-effect pipe Q1, bigrid field effect
Should pipe Q2, variable resistance L1, unidirectional diode D2, unidirectional diode D3, zener diode DZ1,
Resistance R1, resistance R4, resistance R6, resistance R7, resistance R2, resistance R3, electric capacity C3, electricity
Hold C7 and electric capacity C5, described resistance R1, variable resistance L1, unidirectional diode D2, luminescence
One end that body LED1, luminous body LED2 and luminous body LED3 are connected in series is connected to chip U1's
On 2nd foot, the other end is connected in the drain of dual-gate field-effect pipe Q2, zener diode DZ1
One end electrically connects with the 2nd foot of resistance R1 and U1 respectively, and electric capacity C3 is also connected to chip U1's
On 2nd foot and be simultaneously connected on the 8th foot of chip U1, resistance R4 is connected in series with electric capacity C7
Rear one end is connected on the 3rd foot of chip U1, and after resistance R4 and electric capacity C7 series winding connects, another terminates
Ground, unidirectional diode D3 and resistance R6 is connected in parallel rear and is connected in series with resistance R7, chip U1
The 5th foot electrically connect unidirectional diode D3 and resistance R6, unidirectional diode D3 and resistance R6 simultaneously
The common other end be connected to the grid level of dual-gate field-effect pipe Q1, the leakage of dual-gate field-effect pipe Q1
Level is connected electrically between variable resistance L1 and unidirectional diode D2, and resistance R2 and R3 is connected in parallel
After be electrically connected on the 6th foot of chip U6, dual-gate field-effect pipe Q1 source class electric connection resistance R2
With resistance R3, chip U1 the 7th foot electrical connection electric capacity C5, zener diode DZ1, electric capacity C3,
Electric capacity C7, electric capacity C4, resistance R7, resistance R2, resistance R3, electric capacity C5 jointly connect and connect
Ground；This circuit also includes electric capacity C1, electric capacity C2, resistance R9, electric capacity C6, zener diode DZ2
And resistance R11, one end of described electric capacity C6 is connected to unilateral diode D2 and luminous body LED1
Between, electric capacity C1 is connected in parallel with electric capacity C2, and after resistance R11 is in parallel with electric capacity C1 is common
End connects VCC and variable resistance L1 respectively, and another after resistance R11 is in parallel with electric capacity C1 is held jointly
Ground connection, the one end after zener diode DZ2 electrically connects with resistance R9 is connected respectively to chip U1's
On 4th foot and electric capacity C4；This circuit also includes resistance R8 and resistance R5, one end of resistance R5 with
Resistance R8 one end electrically connects, and the other end ground connection and the other end with electric capacity C6 respectively electrically connect, electricity
The other end of resistance R8 is connected respectively on the electrical connection of chip U1 the 4th foot and electric capacity C4；Chip U1
The 1st foot be VSS foot, the 2nd foot of chip U1 is EN foot, and the 3rd foot of chip U1 is COMP
Foot, the 4th foot of chip U1 is FB foot, and the 5th foot of chip U1 is DRV foot, chip U1
The 6th foot be CS foot, the 7th foot of chip U1 is Toff foot, and the 8th foot of chip U1 is VCC
Foot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699321.0A CN103687243B (en) | 2013-12-18 | 2013-12-18 | A kind of LED flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699321.0A CN103687243B (en) | 2013-12-18 | 2013-12-18 | A kind of LED flashlight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103687243A CN103687243A (en) | 2014-03-26 |
| CN103687243B true CN103687243B (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310699321.0A Active CN103687243B (en) | 2013-12-18 | 2013-12-18 | A kind of LED flashlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103687243B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470092B (en) * | 2014-11-24 | 2016-04-13 | 宁波市柯玛士太阳能科技有限公司 | A kind of control circuit of dimming electric torch and non-pole light regulating flashlight |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010073334A (en) * | 2008-09-16 | 2010-04-02 | Mamiya Op Co Ltd | Portable led lamp |
| CN102469651A (en) * | 2010-11-11 | 2012-05-23 | 海洋王照明科技股份有限公司 | LED drive circuit and light fixture |
| CN102661488A (en) * | 2012-05-27 | 2012-09-12 | 成都聚合科技有限公司 | Enhanced highlight LED (light-emitting diode) flashlight capable of detecting high-power concentrator cell |
| CN202799277U (en) * | 2012-07-11 | 2013-03-13 | 东莞金唐五金电器制造有限公司 | Multifunctional flashlight |
-
2013
- 2013-12-18 CN CN201310699321.0A patent/CN103687243B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010073334A (en) * | 2008-09-16 | 2010-04-02 | Mamiya Op Co Ltd | Portable led lamp |
| CN102469651A (en) * | 2010-11-11 | 2012-05-23 | 海洋王照明科技股份有限公司 | LED drive circuit and light fixture |
| CN102661488A (en) * | 2012-05-27 | 2012-09-12 | 成都聚合科技有限公司 | Enhanced highlight LED (light-emitting diode) flashlight capable of detecting high-power concentrator cell |
| CN202799277U (en) * | 2012-07-11 | 2013-03-13 | 东莞金唐五金电器制造有限公司 | Multifunctional flashlight |
Non-Patent Citations (2)
| Title |
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| Boost LED driver GS3688;中广芯源;《百度文库》;20130504;第1-6页 * |
| 大功率LED灯升压恒流驱动控制器QX5305;佚名;《百度文库》;20130701;第1-11页 * |
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| Publication number | Publication date |
|---|---|
| CN103687243A (en) | 2014-03-26 |
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Owner name: NINGBO KOMAES ELECTRICAL INDUSTRY CO., LTD. Free format text: FORMER OWNER: NINGBO KOMAES SOLAR TECHNOLOGY CO., LTD. Effective date: 20140313 |
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Effective date of registration: 20140313 Address after: 315171 Zhejiang city of Ningbo province Yinzhou District Ji Shi Gang Zhen Feng Village Applicant after: Ningbo Komaes Electrical Industry Co., Ltd. Address before: 315171 Zhejiang city of Ningbo province Yinzhou District Ji Shi Gang Zhen Feng Village Applicant before: Ningbo Komaes Solar Technology Co., Ltd. |
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Effective date of registration: 20201123 Address after: 277400 Taierzhuang Province Economic Development Zone, Zaozhuang District, Central Road, north of the first North Patentee after: Zaozhuang xinjinshan Intelligent Equipment Co., Ltd Address before: 315171 Zhejiang city of Ningbo province Yinzhou District Ji Shi Gang Zhen Feng Village Patentee before: NINGBO KOMAES ELECTRICAL INDUSTRIAL Co.,Ltd. |
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Effective date of registration: 20220402 Address after: 277400 east side of Guanglu Road, Taierzhuang District, Zaozhuang City, Shandong Province (north of Taizhong Road West Road) Patentee after: Shandong Electric Power Technology Co.,Ltd. Address before: 277400 Taierzhuang Economic Development Zone, Zaozhuang City, Shandong Province Patentee before: Zaozhuang xinjinshan Intelligent Equipment Co.,Ltd. |