CN104456247B - A kind of strip light - Google Patents

A kind of strip light Download PDF

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Publication number
CN104456247B
CN104456247B CN201410705748.1A CN201410705748A CN104456247B CN 104456247 B CN104456247 B CN 104456247B CN 201410705748 A CN201410705748 A CN 201410705748A CN 104456247 B CN104456247 B CN 104456247B
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China
Prior art keywords
led
unit
output
baseplate
resistance
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CN201410705748.1A
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Chinese (zh)
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CN104456247A (en
Inventor
马国富
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宁波市柯玛士太阳能科技有限公司
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00Lighting devices or systems using a string or strip of light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00Point-like light sources

Abstract

A kind of strip light, including shell, LED/light source, LED-baseplate and power line, the bar shaped section bar that shell is formed in one, and provided with chute;Every three LED/light sources and a resistant series constitute a luminescence unit, multiple luminescence units and the control circuit of strip light are provided with LED-baseplate, and LED-baseplate is arranged in chute, LED-baseplate has one layer of copper coin and one layer of aluminium alloy plate, copper coin and aluminium alloy plate are fitted by high-pressure molding to be integrated, the LED-baseplate of the present invention is fitted by using copper coin with aluminium alloy plate by high-pressure molding to be integrated, and aluminium alloy plate is using specific components and the synergy of content, enabling aluminum alloy to itself has good heat dispersion, and resistance is set in luminescence unit, limit the electric current for flowing through LED, so that the voltage at LED end will not be excessive, further improve heat dispersion, so as to ensure that the service life of LED.

Description

A kind of strip light

Technical field:

The present invention relates to a kind of illuminator, and in particular to a kind of strip light.

Background technology:

LED is a kind of can to convert electrical energy into the electronic device of luminous energy with diode characteristic.LED lamp is in illumination Possess the development prospect being most expected in field, it has the prominent advantages that:Luminous efficiency is high, and current great power LED light efficiency is reachable 120 lumens/watts, up to 150-200 lumens/watts, (incandescent lamp, halogen tungsten lamp light efficiency are 12-24 lumens/watts, fluorescent lamp for distant view development For 50-70 lumens/watts, sodium vapor lamp is 90-140 lumens/watts, and its most of electric energy becomes thermal losses);The monochromaticjty of light is good, light Spectrum is narrow, and coloured visible ray can be directly sent without filtering;Its power consumption is few, in the case of same illuminating effect, and power consumption is white / 8th of vehement bulb, 1/2nd of fluorescent tube;Service life is long, and average life span was up to 100,000 hours;Security reliability By force, being conducive to environmental protection, (cold light source caloric value is low, non-thermal radiation, can be easily installed and safeguarded with safe touch;Not mercurous, sodium etc. The element of health is endangered, discarded object is recyclable).

And it is one of key technology of high-power LED encapsulation to radiate, radiating not good general have a strong impact on LED go out light efficiency Rate, brightness and reliability.At present, the weak point of LED lamp housing radiating module design is mainly manifested in:(1) heat-delivery surface Product is limited, (2) fin exposure easy dust stratification, or by acid rain corrosion, do not reach the life-span same with LED street lamp outside, (3) LED lamp radiator is outer to be typically provided with plastic lamp shade etc. in order to attractive in appearance etc., influences the convection current of air, makes the radiating effect of radiator Perfect condition is not reached.So the quality of aluminium alloy base plate material heat dispersion directly determines the performance of high-power LED element. But current aluminium alloy extrusions is substantially not enough in terms of thermal conductivity, for high-power LED lamp, it is difficult to meet it Cooling requirements.

The content of the invention:

It is of the prior art not enough there is provided a kind of good strip light of heat dispersion it is an object of the invention to solve, its Concrete technical scheme is as follows:

A kind of strip light, including shell, LED/light source, LED-baseplate and power line, it is characterised in that:The shell is integrated The bar shaped section bar of shaping, and provided with chute;Every three LED/light sources and a resistant series constitute a luminescence unit, the LED bases Multiple luminescence units and the control circuit of strip light are provided with plate, and the LED-baseplate is arranged in chute, the power supply Line is electrically connected in LED-baseplate, and the LED-baseplate has one layer of copper coin and one layer of aluminium alloy plate, the copper coin and aluminium alloy plate Fitted and be integrated by high-pressure molding, the weight percent composition of the aluminium alloy plate is:Si:0.30-1.00%, Fe:0.20- 0.30%, and Si+Fe:0.60-1.00%, Mg:0.5-1.7%, Cu:0.10-0.20%, Zn:0.05-0.15%, Mn: 0.05-0.15%, Ag:0.30-0.60%, La:0.01-0.02%, Nd:0.01-0.02%, Tb:0.01-0.015%, surplus For Al.

Alloying element in aluminium alloy is to influence the principal element of its heat conductivility, and alloying element is to Heat Transfer for Aluminum Influence depending on element addition and its presence form.The master in aluminium alloy used in strip light LED-baseplate of the present invention It is the Mg and Si added to improve alloy strength to want alloying element, the lucky production enhancement when magnesium silicon mass ratio 1.7 or so Phase Mg2Si, and iron is when being 0.20-0.30%, is remarkably improved the capacity of heat transmission of alloy, and then improve the thermal diffusivity of LED-baseplate. Although magnesium is most common intensified element in aluminium alloy, when generally relatively low per content, the thermal conductivity of alloy is higher and intensity is slightly lower. When magnesium silicon ratio is larger, superfluous magnesium not only weakens Mg2Si strengthening mechanism, also add from consolidating in aluminum substrate Solubility, causes the heat conductivility of alloy to decline.When magnesium silicon ratio about 1.7, superfluous micro Si just with Fe Dispersed precipitates in In aluminum substrate, the two forms β (Al9Fe2Si2) thick phase probability very little, so the heat conductivility of alloy is preferable.If when silicon mistake When surplus amount is more, superfluous silicon is not only solid-solution in aluminum substrate, and with iron ratio where appropriate, easily turning to the β phases of compound state Change, alloy heat conductivility can be caused to decline.Also contain appropriate Cu, Zn, Mn, Ag in the aluminium alloy of LED-baseplate simultaneously, wherein few The Cu of amount can improve the mechanical performance of alloy, a small amount of Zn and Ag formation reinforcings Ag2Zn improves the intensity of alloy, appropriate Mn energy The recrystallization process of aluminium alloy is prevented, recrystallization temperature is improved, significantly refines recrystal grain, and can subtract with dissolved impurity iron The illeffects of small iron, but excessive Mn easily produces Al-Si-Fe-P quaternary compounds, easily forms hard spot and reduces heat conduction Property, and then thermal diffusivity is influenceed, therefore, by the synergy produced between each element, not only improve the heat conduction of LED-baseplate alloy Property, while ensureing the mechanical performance of LED-baseplate, and then extend the service life of substrate.

Rare earth addition La, Nd, Tb are also added into the aluminium alloy of LED-baseplate of the present invention, is found through constantly experiment, Rare earth addition is added in the aluminium alloy of LED-baseplate and can obviously improve structure property, makes crystal grain uniform, cyrystal boundary segregation is with being mingled with number Amount is few, dense structure.And rare earth addition also there are following several respects to act on:First, can as aluminium alloy refining agent, to melt With getter action, greatly reduce the pin hole rate in tissue;2nd, the impurity content of aluminium alloy is reduced, strengthens the intensity of alloying, Tissue is finer and close;3rd, there is metamorphism to as-cast structure, effectively the solid solubility of the superfluous element of control, improves the heat conduction of alloy Performance, and then improve its thermal diffusivity, because rare earth addition La, Nd, Tb can be with the transitional chemical combination of alloying element production such as Fe, Si Thing.

Preferably, the thickness of copper coin is 0.2-0.8mm in the LED-baseplate, the thickness of aluminium alloy plate is 1.0- 1.4mm。

Preferably, the weight percent composition of aluminium alloy plate is in the LED-baseplate:Si:0.40-0.80%, Fe: 0.20-0.25%, and Si+Fe:0.60-1.00%, Mg:0.5-1.5%, Cu:0.12-0.18%, Zn:0.05-0.12%, Mn:0.08-0.15%, Ag:0.30-0.50%, La:0.01-0.015%, Nd:0.015-0.02%, Tb:0.01- 0.015%, surplus is Al.

It is preferred that, the chute is the U-lag as formed by setting fin relatively in the shell both sides.

It is preferred that, the control circuit of the strip light, the control circuit of the strip light, including rectification filtering unit, electricity Source protection unit, LED drive unit and output unit, the rectification filtering unit drive with power protection unit and LED respectively Moving cell is electrically connected, and the LED drive unit is electrically connected with output unit;

After power supply is accessed, LED drive unit is transferred to after the rectified filter unit rectifying and wave-filtering of voltage and output is single Member, after LED drive unit is activated, LED drive unit driving activation LED, output unit receives rectified filter unit Exported after voltage afterwards and the decompression filtering through output unit to LED.

Further, the rectification filtering unit includes AC-DC conversion chips and by inductance L2 and resistance R2 structures in parallel Into the second filter unit;The power protection unit includes piezo-resistance RV, thermistor NTC, by inductance L1 and resistance R1 First filter unit of parallel connection composition and the 3rd filter unit being made up of inductance L3 and resistance R3 parallel connections;Positive source is with protecting Connect the first filter unit and piezo-resistance RV respectively after dangerous silk series connection, the piezo-resistance RV other end connects power cathode and heat respectively Quick resistance NTC, thermistor NTC are connected to input one end pin of AC-DC conversion chips after being connected with the 3rd filter unit, described The other end of first filter unit is connected to the input other end pin of AC-DC conversion chips;The output of the AC-DC conversion chips Positive pole connects the second filter unit, and the output end of the second filter unit connects LED drive unit and output unit respectively.

Further, the LED drive unit includes LED drive chip, and the power end of the LED drive chip is concatenated Connect the output end of the second filter unit after resistance R6 and resistance R4, and power end is also associated with the ground capacity C7 of protection;It is described The protection voltage-regulation end of LED drive chip is grounded after resistance R13, the electricity of the current acquisition termination parallel connection of LED drive chip Flow and be grounded after detection resistance RS1 and resistance RS2, the drain electrode of the inside metal-oxide-semiconductor of LED drive chip connects diode D3 positive pole respectively With energy storage inductor T1 input, other pins of LED drive chip are grounded, and the output of the coil T1 connects output unit.

Further, the output end member includes transformer and luminous group, and the positive pole pin of the input of transformer connects whole The output of filter unit is flowed, the negative pin of the input of depressor connects energy storage inductor T1 output, and transformer inputs pin Between be parallel with electric capacity C4 and resistance R5, in parallel luminous group of the pin connection of transformer output end.

Specifically, when access power supply after, filtering of the electric current through the first filter unit, by after AC-DC conversion chips from friendship Circulation changes direct current into, and by the filtering output galvanic current of the second filter unit, is transmitted after resistance R4 and R6 partial pressure To the power end and bootrom of LED drive chip, LED drive chip exports pulse, the inside metal-oxide-semiconductor of LED drive chip Conducting, flows through energy storage inductor T1 electric current from above freezing liter of energy storage, and the second filter unit output voltage through transformer export to Luminous group, when LED drive chip zero output, metal-oxide-semiconductor is turned off, the electric current release on energy storage inductor T1, through diode D3 Afterflow is to transformer, and there is provided the voltage needed for luminous group after transformer pressure-reducing.

The beneficial effect of the present invention compared with prior art:The LED-baseplate of the present invention is by using copper coin and aluminium alloy plate Fitted and be integrated by high-pressure molding, and aluminium alloy plate enables aluminum alloy to itself using specific components and the synergy of content With good heat dispersion, the process that instead of extra laying fin saves manufacture material, reduces production cost, And resistance is set in luminescence unit, limit the electric current for flowing through LED so that the voltage at LED end will not be excessive, further Heat dispersion is improved, so as to ensure that the service life of LED.

Brief description of the drawings:

Fig. 1 is the explosive view of strip light of the present invention;

Fig. 2 is the circuit diagram of present invention control strip light.

In figure:Shell 1, LED/light source 2, LED-baseplate 3, power line 4, chute 5, resistance 6, rectification filtering unit 7, power supply are protected Protect unit 8, LED drive unit 9, output unit 10.

Embodiment:

The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.

As shown in figure 1, the present invention relates to a kind of strip light, including shell 1, LED/light source 2, LED-baseplate 3 and power line 4, The bar shaped section bar that the shell 1 is formed in one, and set convex relatively in the both sides of shell 1 provided with chute 5 in chute 5 and the present invention Prismatic into U-lag;Bar is provided with every three LED/light sources 2 and a resistance 6 luminescence unit in series, LED-baseplate 3 The control of shape lamp is electric and multiple luminescence unit roads, and resistance is set in luminescence unit, the electric current for flowing through LED is limited, makes The voltage for obtaining LED end will not be excessive, heat dispersion is further improved, so as to ensure that the service life of LED.The present invention Containing four luminescence units, and LED-baseplate is arranged in chute, and the power line is electrically connected in LED-baseplate.

Wherein, the LED-baseplate has one layer of copper coin and one layer of aluminium alloy plate, and the copper coin and aluminium alloy plate pass through high pressure It is molded and fits and be integrated, the weight percent composition of the aluminium alloy plate is:Si:0.30-1.00%, Fe:0.20-0.30%, And Si+Fe:0.60-1.00%, Mg:0.5-1.7%, Cu:0.10-0.20%, Zn:0.05-0.15%, Mn:0.05- 0.15%, Ag:0.30-0.60%, La:0.01-0.02%, Nd:0.01-0.02%, Tb:0.01-0.015%, surplus is Al.

Preferably, the thickness of copper coin is 0.2-0.8mm in the LED-baseplate, the thickness of aluminium alloy plate is 1.0- 1.4mm。

Embodiment 1:The LED-baseplate has the aluminium alloy that the copper coin that a layer thickness is 0.6mm and a layer thickness are 1.2mm Plate, the copper coin and aluminium alloy plate are fitted by high-pressure molding to be integrated, and the weight percent composition of the aluminium alloy plate is: Si:0.7%, Fe:0.25%, Mg:1.2%, Cu:0.15%, Zn:0.08%, Mn:0.10%, Ag:0.50%, La: 0.015%, Nd:0.015%, Tb:0.012%, surplus is Al.

Embodiment 2:The LED-baseplate has the aluminium alloy that the copper coin that a layer thickness is 0.2mm and a layer thickness are 1.0mm Plate, the copper coin and aluminium alloy plate are fitted by high-pressure molding to be integrated, and the weight percent composition of the aluminium alloy plate is: Si:0.30%, Fe:0.30%, Mg:0.52%, Cu:0.20%, Zn:0.05%, Mn:0.15%, Ag:0.30%, La: 0.02%, Nd:0.01%, Tb:0.015%, surplus is Al.

Embodiment 3:The LED-baseplate has the aluminium alloy that the copper coin that a layer thickness is 0.8mm and a layer thickness are 1.4mm Plate, the copper coin and aluminium alloy plate are fitted by high-pressure molding to be integrated, and the weight percent composition of the aluminium alloy plate is: Si:1.00%, Fe:0.20%, Mg:1.7%, Cu:0.10%, Zn:0.15%, Mn:0.05%, Ag:0.60%, La: 0.01%, Nd:0.02%, Tb:0.01%, surplus is Al.

Embodiment 4:The LED-baseplate has the aluminium alloy that the copper coin that a layer thickness is 0.5mm and a layer thickness are 1.1mm Plate, the copper coin and aluminium alloy plate are fitted by high-pressure molding to be integrated, and the weight percent composition of the aluminium alloy plate is: Si:0.70%, Fe:0.22%, Mg:1.2%, Cu:0.18%, Zn:0.08%, Mn:0.12%, Ag:0.40%, La: 0.012%, Nd:0.017%, Tb:0.013%, surplus is Al.

By the LED-baseplate in embodiment 1-4 respectively by weigh raw material, melting, degasification remove the gred, be pressed into aluminium alloy plate Material, then thermally treated, then with copper coin high-pressure molding and fit and be integrated, and performance is carried out to the LED-baseplate in embodiment 1-4 Test, test result is as shown in table 1.

Table 1:The performance test of LED-baseplate in embodiment 1-4

In summary, LED-baseplate not only has preferable mechanical performance in strip light of the present invention, also with higher heat conduction Coefficient, i.e. LED-baseplate have good heat dispersion, therefore need not provide extra heat abstractor, reduce production cost.

As shown in Fig. 2 a kind of control circuit of strip light, including rectification filtering unit 7, power protection unit 8, LED drive Moving cell 9 and output unit 10, rectification filtering unit 7 are electrically connected with power protection unit 8 and LED drive unit 9 respectively, LED drive unit 9 is electrically connected with output unit 10.

After power supply is accessed, LED drive unit is transferred to after the rectified filter unit rectifying and wave-filtering of voltage and output is single Member, after LED drive unit is activated, LED drive unit driving activation LED, output unit receives rectified filter unit Exported after voltage afterwards and the decompression filtering through output unit to LED.

The second filtering that rectification filtering unit includes AC-DC conversion chips and is made up of inductance L2 and resistance R2 parallel connections is single Member;The power protection unit include piezo-resistance RV, thermistor NTC, be made up of inductance L1 and resistance R1 parallel connections first Filter unit and the 3rd filter unit being made up of inductance L3 and resistance R3 parallel connections;Positive source is distinguished after being connected with fuse Even the first filter unit and piezo-resistance RV, piezo-resistance the RV other end connect power cathode and thermistor NTC, temperature-sensitive respectively Resistance NTC is connected to input one end pin of AC-DC conversion chips after being connected with the 3rd filter unit, first filter unit The other end is connected to the input other end pin of AC-DC conversion chips;The output cathode of the AC-DC conversion chips connects the second filtering Unit, the output end of the second filter unit connects LED drive unit and output unit respectively.

LED drive unit includes LED drive chip, and the power end of the LED drive chip is concatenated resistance R6 and resistance Connect the output end of the second filter unit after R4, and power end is also associated with the ground capacity C7 of protection;The LED drive chip Protection voltage-regulation end is grounded after resistance R13, the current sense resistor RS1 of the current acquisition termination parallel connection of LED drive chip It is grounded with after resistance RS2, the drain electrode of the inside metal-oxide-semiconductor of LED drive chip connects diode D3 positive pole and energy storage inductor T1 respectively Input, other pins of LED drive chip are grounded, and the output of the coil T1 connects output unit.

Exporting end member includes transformer and luminous group, and the positive pole pin of the input of transformer connects the defeated of rectification filtering unit Go out, the negative pin of the input of depressor connects is parallel with electric capacity between energy storage inductor T1 output, and transformer inputs pin C4 and resistance R5, luminous group of the pin connection parallel connection of transformer output end.

Specifically, after power supply is accessed, filtering of the electric current through the first filter unit, after AC-DC conversion chips Direct current is converted into from exchange, and by the filtering output galvanic current of the second filter unit, after resistance R4 and R6 partial pressure Transmit to the power end of LED drive chip and bootrom, LED drive chip output pulse, the inside MOS of LED drive chip The conducting of pipe, flows through energy storage inductor T1 electric current from above freezing liter of energy storage, and the output voltage of the second filter unit is defeated through transformer Go out to luminous group, when LED drive chip zero output, metal-oxide-semiconductor is turned off, the electric current release on energy storage inductor T1, through two poles Pipe D3 afterflows are to transformer, and there is provided the voltage needed for luminous group after transformer pressure-reducing.

Claims (7)

1. a kind of strip light, including shell, LED/light source, LED-baseplate and power line, it is characterised in that:The shell is integrated into The bar shaped section bar of type, and provided with chute;Every three LED/light sources and a resistant series constitute a luminescence unit, the LED-baseplate On be provided with multiple luminescence units and the control circuit of strip light, and the LED-baseplate is arranged in chute, the power line It is electrically connected in LED-baseplate, the LED-baseplate has one layer of copper coin and one layer of aluminium alloy plate, the copper coin and aluminium alloy plate lead to Cross high-pressure molding and fit and be integrated, the thickness of copper coin is 0.2-0.8mm in the LED-baseplate, the thickness of aluminium alloy plate is 1.0-1.4mm, the weight percent of the aluminium alloy plate, which is constituted, is:Si:0.30-1.00%, Fe:0.20-0.30%, and Si+Fe: 0.60-1.00%, Mg:0.5-1.7%, Cu:0.10-0.20%, Zn:0.05-0.15%, Mn:0.05-0.15%, Ag: 0.30-0.60%, La:0.01-0.02%, Nd:0.01-0.02%, Tb:0.01-0.015%, surplus is Al, and wherein magnesium is siliceous Amount is than being 1.7.
2. a kind of strip light as claimed in claim 1, it is characterised in that:The weight percent of aluminium alloy plate in the LED-baseplate Constitute and be:Si:0.40-0.80%, Fe:0.20-0.25%, and Si+Fe:0.60-1.00%, Mg:0.5-1.5%, Cu: 0.12-0.18%, Zn:0.05-0.12%, Mn:0.08-0.15%, Ag:0.30-0.50%, La:0.01-0.015%, Nd: 0.015-0.02%, Tb:0.01-0.015%, surplus is Al.
3. a kind of strip light as claimed in claim 1, it is characterised in that:The chute is relative in the shell both sides sets Put the U-lag of fin formation.
4. a kind of strip light as claimed in claim 1, it is characterised in that:The control circuit of the strip light, including rectification filter Ripple unit, power protection unit, LED drive unit and output unit, the rectification filtering unit respectively with power protection list Member and LED drive unit electrical connection, the LED drive unit are electrically connected with output unit;
After power supply is accessed, LED drive unit and output unit are transferred to after the rectified filter unit rectifying and wave-filtering of voltage, when After LED drive unit is activated, LED drive unit driving activation LED, output unit receives the electricity after rectified filter unit Press and exported after the decompression filtering through output unit to LED.
5. a kind of strip light as claimed in claim 4, it is characterised in that:The rectification filtering unit includes AC-DC and changes core Piece and the second filter unit being made up of inductance L2 and resistance R2 parallel connections;The power protection unit include piezo-resistance RV, Thermistor NTC, the first filter unit being made up of inductance L1 and resistance R1 parallel connections and by inductance L3 and resistance R3 structure in parallel Into the 3rd filter unit;Positive source connects the first filter unit and piezo-resistance RV, pressure-sensitive electricity respectively after being connected with fuse The resistance RV other end connects power cathode and thermistor NTC respectively, and thermistor NTC is connected to after being connected with the 3rd filter unit Input one end pin of AC-DC conversion chips, the input that the other end of first filter unit is connected to AC-DC conversion chips is another One end pin;The output cathode of the AC-DC conversion chips connects the second filter unit, and the output end of the second filter unit connects respectively LED drive unit and output unit.
6. a kind of strip light as claimed in claim 4, it is characterised in that:The LED drive unit includes LED drive chip, The power end of the LED drive chip is concatenated connecting after resistance R6 and resistance R4 the output end of the second filter unit, and power end It is also associated with the ground capacity C7 of protection;The protection voltage-regulation end of the LED drive chip is grounded after resistance R13, and LED drives It is grounded after the current sense resistor RS1 and resistance RS2 of the current acquisition termination parallel connection of dynamic chip, the inside MOS of LED drive chip The drain electrode of pipe connects the input of diode D3 positive pole and energy storage inductor T1 respectively, and other pins of LED drive chip are grounded, institute The output for stating coil T1 connects output unit.
7. a kind of strip light as claimed in claim 4, it is characterised in that:The output end member includes transformer and luminous group, The positive pole pin of the input of transformer connects the output of rectification filtering unit, and the negative pin of the input of depressor connects energy storage inductor Electric capacity C4 and resistance R5 are parallel between T1 output, and transformer inputs pin, the pin connection of transformer output end is simultaneously Luminous group of connection.
CN201410705748.1A 2014-11-28 2014-11-28 A kind of strip light CN104456247B (en)

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CN108954264B (en) * 2018-06-28 2020-01-17 安徽捷泰智能科技有限公司 High-efficient heat abstractor of aluminium base board of LED lamp

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CN201437966U (en) * 2009-06-22 2010-04-14 宁波银风能源科技股份有限公司 LED lamp base
CN201827739U (en) * 2010-09-15 2011-05-11 深圳市大族元亨光电股份有限公司 Led light bar module
CN104185900A (en) * 2012-03-30 2014-12-03 三菱综合材料株式会社 Power module substrate, power module substrate with heat sink, and power module

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