CN201277444Y - Digital light-modulation high-power LED electric torch - Google Patents
Digital light-modulation high-power LED electric torch Download PDFInfo
- Publication number
- CN201277444Y CN201277444Y CNU2008200299827U CN200820029982U CN201277444Y CN 201277444 Y CN201277444 Y CN 201277444Y CN U2008200299827 U CNU2008200299827 U CN U2008200299827U CN 200820029982 U CN200820029982 U CN 200820029982U CN 201277444 Y CN201277444 Y CN 201277444Y
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- battery
- flashlight
- power led
- cap
- great power
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- Y02B20/42—
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model relates to a flashlight with big power LED and the function of digital light modulation, which comprises a luminous lamp holder part and a battery and is characterized in that a constant-current driving circuit which can guarantee the voltages and the current on both ends of an LED light source to remain unchanged when the battery is full or the electric quantity of the battery is lower is connected on the battery, the PMW control is realized through the programmed method, the duty-cycle is changed, and then a constant-current control circuit of the output power of an LED and a digital light circuit are changed. Since the digital light modulation method is adopted, the flashlight can adapt to various use conditions, and the high brightness illumination and the long-time illumination are freely selected, the flashlight adopts a fully-sealing structure, thereby the flashlight can not leak in water, the outer shell uses aluminum materials to adapt various bad conditions, the whole structure can not be destructively deformed under the actions of heavy force, dropping, impacting and the like, the whole structure has no weak segment, and the use is broader.
Description
Technical field
The utility model belongs to the improvement of general portable lighting apparatus, particularly flashlight.
Technical background
Common flashlight consists of: power supply is generally electrical storage devices such as battery or electric capacity; Light source is generally incandescent lamp, one or more low-power LEDs; Power switch; Shell is generally metal or nonmetallic materials.
Along with light emitting semiconductor device LED luminous flux improves constantly, the volume of digital circuit, programming device constantly dwindles, and makes small-sized digitlization great power LED torch realize becoming possibility.
Compare with incandescent lamp, great power LED has power saving and long characteristics of life-span, compares with low-power LED, and great power LED has the high advantage of brightness.As long as design is proper, great power LED is used on flashlight, has bigger illumination and longer service life than incandescent lamp, and under the identical situation of battery, the time that can use continuously is more permanent.
Common flashlight does not possess the equilibrium control function of brightness, along with the minimizing of battery electric quantity, the brightness of flashlight also decreases, and the present invention adopts constant current drive mode to light source, when battery was brought into use and used electric weight and exhaust substantially, brightness remained unchanged substantially.
Common flashlight does not generally have dimming function, uses digital circuit in the present invention, realizes the digital dimming of flashlight, can use under different service conditions.
Summary of the invention
The utility model purpose provides a kind of digital dimming great power LED flashlight, and solving battery bigger problem of flashlight luminance difference when full electricity and electric weight are low, and the employing digital circuit carries out light modulation, realizes multiple brightness and flashing function.
Specifically, digital dimming great power LED flashlight, comprise Luminous lamp holder part and battery, it is to be connected with to guarantee that full electricity of battery or battery electric quantity can both keep remain unchanged constant-current drive circuit and realize PMW control with programmed method of led light source both end voltage, electric current when low on battery, change dutycycle, thereby change power output constant-current control circuit and the digital light adjusting circuit of LED.
Constant-current control circuit and digital light adjusting circuit adopt the control pcb board.
Digital dimming great power LED flashlight, its frame for movement is: Luminous lamp holder partly has the Cap casing of bearing optical reflector and optics safety glass, glass, reflector steadily are placed in order in the Cap casing and with pressure ring it are fastened in the Cap casing, Cap casing is connected with transitional storehouse one end of carrying main control circuit and great power LED, light source and control pcb board are installed on the transitional storehouse, the other end of transitional storehouse connects the battery compartment that is used to hold and carry battery, and battery compartment links to each other with the lamp tail shell that is used to carry switch.
The Cap casing top has irregular projection.
Be useful on the special tactics ring that holds mode at the battery compartment overcoat.
Lamp tail shell comprises and is used for closing battery and power switch pressing plate circle is installed, is used for battery and connects electrical spring, the break-make and the transforming gear switch module of control flashlight, switch fixed pressure cap, the deflating cap that is used to seal the flashlight afterbody He makes things convenient for push switch; Spring is welded on the switch module, and deflating cap, pressure cap, switch module are put into successively in the lamp tail shell and above-mentioned parts screw are loaded solid with the pressing plate circle.
Advantage of the present invention is to have solved following problem: a) battery flashlight luminance difference when completely electricity and electric weight are low is bigger, is resolved in the present invention; B) brightness of LED flashlight brightness ratio incandescent lamp flashlight is low, and illumination distances is shorter, is resolved in invention; C) flashlight adopts digital circuit to carry out light modulation, realizes multiple brightness and flashing function; The weight of this product, volume, brightness etc. all have significantly than conventional incandescent flashlight to be optimized, and can reach round-the-clock use on service condition.No matter at light source, control circuit, housing, still etc. the aspect has all adopted many new technologies.
The utility model can be used for special industries such as search and rescue, geology, probing, army, police, also can be used for fields such as outdoor exercises.Owing to adopt the digital dimming mode, can adapt to multiple service condition, between highlight illumination and long-time illumination, select freely.Adopt all-sealed structure on the structure, can be non-leakage in water; Shell uses aluminium, to adapt to various mal-conditions; In weight, fall, total do not produced destructive distortion under the external force effect such as impact, overall structure does not have weak link, makes purposes more extensive.
Description of drawings
Figure is the utility model structural representation.
According to number order, each parts is respectively among the figure:
(1) Cap casing (2) lamp surface glass (3) reflector (4) pressure ring (5) led light source (6) control pcb board (7) battery (8) transitional storehouse (9) battery compartment (10) tactics ring (11) lamp tail shell (12) pressing plate circle (13) spring (14) switch is set up (15) pressure cap (16) deflating cap
The specific embodiment
As shown in the figure, digital dimming great power LED flashlight, comprise Luminous lamp holder part and battery, it is to be connected with to guarantee that full electricity of battery or battery electric quantity can both keep remain unchanged constant-current drive circuit and realize PMW control with programmed method of led light source both end voltage, electric current when low on battery, change dutycycle, thereby change power output constant-current control circuit and the digital light adjusting circuit of LED.Constant-current control circuit and digital light adjusting circuit adopt the control pcb board.
Digital dimming great power LED flashlight, its frame for movement is: Luminous lamp holder partly has the Cap casing of bearing optical reflector and optics safety glass, glass, reflector steadily are placed in order in the Cap casing and with pressure ring it are fastened in the Cap casing, Cap casing is connected with transitional storehouse one end of carrying main control circuit and great power LED, light source and control pcb board are installed on the transitional storehouse, the other end of transitional storehouse connects the battery compartment that is used to hold and carry battery, and battery compartment links to each other with the lamp tail shell that is used to carry switch.
General structure of the present invention comprises: the transitional storehouse of the Cap casing of bearing optical reflector and optics safety glass, carrying main control circuit and great power LED, be used to hold and carry the battery compartment of battery, four parts in tail storehouse that are used to carry switch.Overall material uses aluminum alloy casing.Totally be divided into opticator, structure division, circuit part.
Opticator comprises:
● high-power LED light source is the luminous main body of flashlight, and for the invention provides all available visible lights, power can reach 3W, and luminous flux is hundreds of times of little LEDs;
● paraboloid, effect are with the light of great power LED emission, accumulate a branch of parallel light according to the reflective principle of parabola, thereby reach concentrating of luminous energy, thereby shine farther distance;
● optics safety glass, go out with LED with by the light transmission that reflector compiles on the one hand, protect reflector and LED not to be subjected to the invasion and attack of dust, rainwater on the other hand, and can protect internal part not to be subjected to the infringement of external force.
Structure division comprises:
● Cap casing, be used to carry the parts of paraboloid, optics safety glass, and include rubber seal, parts such as reflector pressure ring have increased the practicality of attacking head at Cap casing part front end and have handled, and have increased function of use under special circumstances.Special tight loop can make reflector and led light source be in all the time on the same horizontal linear, makes led light source reach best use location.The outer ring wall of reinforcing makes whole flashlight more firm, when considering moulding attractive in appearance, and the required anti-skidding structure processing of having carried out during also at use;
● transitional storehouse is used to carry the parts of great power LED, control circuit PCB, and can conducts the serviceability temperature that reduces LED and control circuit, the intermediate member that Cap casing is engaged with battery compartment to the heat that great power LED produces.When the design of the structure division of transitional storehouse, more to the consideration of led light source and the protection of main circuit plate.Because led light source can attach when work and produce a large amount of heats, as untimely heat is derived, can destroy led light source and control circuit generation, make its damage.In order to solve heat dissipation problem, the material of good heat conduction effect and special integrative-structure design have been used.Thereby heat radiation and protection problem have been solved to important devices.
● battery compartment, it act as the carrying required battery of flashlight work and conveniently holds.Adopted antiskid groove in main grip part, added the cooperation of special tactics ring, made flashlight can adopt the multiple mode of holding.Treated surface is held and is felt better, and antiskid groove can allow the user greatly in the rain or also can landing when wearing gloves and using.
● the lamp tail piece, its conduct is the bearer circuit switch.Bottom design is a horizontal mode, and flashlight can be stood upside down in the plane, realizes the special lighting effect.The design of stern attack head makes flashlight be suitable for various accidents.
Global design is for being applicable to multiple environment.Adopt four O RunddichtringOs to seal, reduced many sealing rings, its sealing property is improved.Housing adopts to go in ring and connects, and makes it more solid firmly.
(1) Cap casing adopts aluminium alloy car system, and the top has irregular projection, can use under special circumstances; (2) lamp surface glass adopts optics safety glass, guarantees that its light transmittance is the highest on the one hand, can guarantee the requirement of impact resistance and intensity on the other hand; (3) reflector adopts metal material processing, and electroplates the high brightness reflective membrane at reflective surface, not only can guarantee reflecting rate, and indeformable at environment cold, high heat, nondiscolouring;
Lamp head installation method: glass (2), reflector parts such as (3) steadily are placed in the Cap casing (1) in order, (2) parts spiral shells such as (3) dress are fastened on the Cap casing (1) with pressure ring (4);
(5) led light source uses the high-power imported L ED of 3W, and brightness is guaranteed; (6) the control pcb board comprises constant-current control circuit and digital light adjusting circuit; (7) battery uses the binodal lithium battery; (8) transitional storehouse uses aluminium alloy car system, effect one, connects Cap casing and battery compartment, and two, light source is installed, three, the control pcb board is installed.
The transitional storehouse installation method: led light source (5) is fixed on transitional storehouse (8) top, and middle joint portion scribbles heat-conducting silicone grease, and control pcb board (6) is installed in transitional storehouse (8) bottom.
(9) battery compartment, aluminium alloy car system is used to hold and install battery; (10) tactics ring, aluminium alloy part can be used for the special mode of holding; (11) lamp tail shell, aluminium alloy part is used for closing battery and power switch (12) pressing plate circle, aluminium alloy part, floatless switch assembly is installed; (13) spring, steel is gold-plated, is used for battery and connects; (14) switch module, the break-make of control flashlight, and transforming gear; (15) pressure cap, floatless switch emits; (16) deflating cap, material is a rubber, is used to seal the flashlight afterbody and makes things convenient for push switch.
Flashlight afterbody installation method: spring (13) is welded on the switch module (14), successively deflating cap (16), pressure cap (15), switch module (14) is put in the lamp tail shell (11), above-mentioned parts spiral shell is loaded solid getting final product with pressing plate circle (12).
General assembly: in screwing with battery compartment, the battery battery compartment of packing into is loaded onto the tactics ring on battery compartment, at last the torch afterbody spiral shell that installs is contained in the battery compartment afterbody with the lamp holder that installs, and overall assembling is finished.
Circuit part comprises:
● constant-current drive circuit, adopt BUCK type Switching Power Supply to drive, guarantee no matter can both keep led light source both end voltage, electric current to remain unchanged when still battery electric quantity is low at the full electricity of battery.Thereby the power output that can guarantee led light source is constant; Brightness is also invariable.
● digital light adjusting circuit, the MCU programmable products of employing Atme1 realizes PMW control with programmed method, changes dutycycle, thereby changes the power output of LED, reaches the purpose of change brightness, realizes the light modulation of flashlight with digital circuit.
Claims (6)
1, digital dimming great power LED flashlight comprises Luminous lamp holder part and battery, it is characterized in that being connected with on battery constant-current drive circuit and constant-current control circuit and digital light adjusting circuit.
2, digital dimming great power LED flashlight according to claim 1 is characterized in that constant-current control circuit and digital light adjusting circuit adopt the control pcb board.
3, digital dimming great power LED flashlight according to claim 1 and 2, it is characterized in that Luminous lamp holder partly has the Cap casing of bearing optical reflector and optics safety glass (1), glass (2), reflector (3) steadily is placed in order in the Cap casing (1) and with pressure ring (4) it is fastened in the Cap casing (1), Cap casing (1) is connected with transitional storehouse (8) one ends of carrying main control circuit and great power LED, light source and control pcb board are installed on the transitional storehouse (8), the other end of transitional storehouse (8) connects the battery compartment that is used to hold and carry battery, and battery compartment links to each other with the lamp tail shell (11) that is used to carry switch.
4, digital dimming great power LED flashlight according to claim 3 is characterized in that the Cap casing top has irregular projection.
5, digital dimming great power LED flashlight according to claim 3 is characterized in that being with tactics ring (10) outside battery compartment.
6, digital dimming great power LED flashlight according to claim 3, it is characterized in that (11) lamp tail shell comprises is used for closing battery and power switch pressing plate circle (12) is installed, be used for battery and connect electrical spring (13), the break-make and the transforming gear switch module (14) of control flashlight, switch fixed pressure cap (15), the deflating cap (16) that is used to seal the flashlight afterbody He makes things convenient for push switch; Spring (13) is welded on the switch module (14), and deflating cap (16), pressure cap (15), switch module (14) are put into successively in the lamp tail shell (11) and above-mentioned parts screw are loaded solid with pressing plate circle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200299827U CN201277444Y (en) | 2008-08-08 | 2008-08-08 | Digital light-modulation high-power LED electric torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200299827U CN201277444Y (en) | 2008-08-08 | 2008-08-08 | Digital light-modulation high-power LED electric torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277444Y true CN201277444Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200299827U Expired - Fee Related CN201277444Y (en) | 2008-08-08 | 2008-08-08 | Digital light-modulation high-power LED electric torch |
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| Country | Link |
|---|---|
| CN (1) | CN201277444Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792406A (en) * | 2015-10-23 | 2016-07-20 | 深圳迈睿智能科技有限公司 | Natural light intensity detection method and detection device capable of being placed in Led lamp |
| CN107152666A (en) * | 2017-07-05 | 2017-09-12 | 商洛市虎之翼科技有限公司 | A kind of noiseless mounting structure of umbrella becket bridle |
-
2008
- 2008-08-08 CN CNU2008200299827U patent/CN201277444Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792406A (en) * | 2015-10-23 | 2016-07-20 | 深圳迈睿智能科技有限公司 | Natural light intensity detection method and detection device capable of being placed in Led lamp |
| CN107152666A (en) * | 2017-07-05 | 2017-09-12 | 商洛市虎之翼科技有限公司 | A kind of noiseless mounting structure of umbrella becket bridle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20100808 |