CN202442169U - Dimming-adjustable LED light fixture - Google Patents

Dimming-adjustable LED light fixture Download PDF

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Publication number
CN202442169U
CN202442169U CN2012200803228U CN201220080322U CN202442169U CN 202442169 U CN202442169 U CN 202442169U CN 2012200803228 U CN2012200803228 U CN 2012200803228U CN 201220080322 U CN201220080322 U CN 201220080322U CN 202442169 U CN202442169 U CN 202442169U
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China
Prior art keywords
diode
led
resistance
contact
photophore
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Expired - Fee Related
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CN2012200803228U
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Chinese (zh)
Inventor
王小平
沈谨谊
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Shanghai Jiatang Electronic Co Ltd
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Shanghai Jiatang Electronic Co Ltd
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Abstract

Provided is a dimming-adjustable LED light fixture, which comprises a lamp cap (1), a lamp holder (2), a bulb casing (1), an LED illuminator assembly, a substrate, and a power supply converter fixedly disposed on the substrate. The dimming-adjustable LED light fixture is characterized in that: a basic working circuit of the power supply converter on the substrate comprises a unidirectional bridge-type rectifier circuit T, a resistor R and LED illuminator combinations, wherein in the unidirectional bridge-type rectifier circuit, a connection point a of a diode D1 and a diode D4, and a connection point c of a diode D2 and a diode D3 are connected with an alternating power supply AC respectively; the LED illuminator combinations which comprise 35 to 120 LED chips are connected in series in a closed circuit where current flows out from a connection point b of the diode D1 and the diode D2 which form the unidirectional bridge-type rectifier circuit and flows back to a connection point d of the diode D3 and the diode D4 which form the unidirectional bridge-type rectifier circuit; and simultaneously the resistor R is disposed between the output power supply and the connection point a of the diode D1 and the diode D4. As a result, a built-in LED basic working circuit is constructed. The entire LED light fixture not only has a relatively small form, but also can be directly used for dimming adjustment.

Description

Can become the LED light fixture that light is regulated
Technical field
The utility model relates to a kind of LED light fixture, especially a kind of LED light fixture that becomes the light adjusting.
Background technology
Because the long service life that has of LED illuminating lamp, start-up time are short, energy-saving effect significantly, do not have ultra-violet radiation and advantages such as environmental pollution, safety in utilization height, approved widely, become the main flow of following energy-saving lamp.
According to the practice that the inventor researches and develops for many years, makes the LED lamp, the problem that in design, manufacturing and the use of LED light fixture, still exists two needs to put forth effort to solve at present: the heat dissipation problem of first LED lamp.Though occurred many new designs around solving the chip cooling that exists in the practical application of LED lamp with lamp integral heat sink technical elements in recent years, most of all cooling mechanism realizes through setting up.This can accept for the bigger LED light fixture of individuality; But for globe lamp, candle lamp, the shot-light of plain edition family expenses, because radiator structure must take space in the bigger lamp.Simultaneously, because the radiator structure of setting up is bound to increase manufacturing cost and use, thereby cause the LED lamp to get into the difficulty of family.
Its two because luminescence mechanism and traditional tungsten lamp of LED lamp is different fully, can't directly realize brightness adjustment control.Along with the decline of perfect day by day, the luminescence chip cost of LED lighting source technology, led light source will be applied in all lighting fields.Therefore, how reasonably to solve the change optical illumination of LED light fixture, solve because the particularity on its luminescence mechanism and can't still be the technical problem of a reality with the problem that the routine techniques scheme becomes light.
Regulate problem in order to solve above-mentioned change light, technical staff both domestic and external has proposed some solutions.Lard speech with literary allusions like China and to offer " a kind of dimming LED (Light Emitting Diode) circuit for lamp " that CN201616936 U proposes and utilize an input power supply of forming the LED lamp by PWM copped wave generator, divider resistance module and power supply.Utilize high-frequency chopper to realize the light modulation of LED lamp.Chinese in addition " automatic control becomes light LED illuminating lamp " of offering CN201992513 U proposition of larding speech with literary allusions utilizes the change light of additional controlling organization realization LED lamp of infrared sensor, intelligent controller composition to regulate and control.
Obviously, above-mentioned two kinds of technical schemes still continue traditional lamp and become the change light regulation and control that the light means realize the LED lamp outward.Not only structural circuit own has certain complexity, and can increase use cost, is unfavorable for further promoting the use of of led light source technology.
Can find out in sum: how further to simplify the radiator structure of LED lamp, the change light problem of regulating that can reasonably solve the LED lamp has simultaneously again become the direction that the LED lamp is is deeply researched and developed.
The utility model content
The purpose of the utility model: be intended to propose a kind of simple radiator structure that both had, can arbitrarily become the LED lamp that light is regulated as common tungsten lamp again simultaneously.
Above-mentioned utility model purpose realizes through following technical scheme:
This LED light fixture that becomes the light adjusting; Comprise lamp holder 3, lamp socket 2, cell-shell 1, LED photophore assembly, substrate and be installed in the power supply changeover device on the substrate, it is characterized in that: the groundwork circuit of the power supply changeover device on the said substrate comprises: unidirectional bridge rectifier T, resistor R, the combination of LED photophore; Diode D in the described unidirectional bridge rectifier 1, diode D 4Contact a, diode D 2, diode D 3Contact c connect communication power supply AC respectively, and from constituting the diode D of unidirectional bridge rectifier 1With diode D 2Contact b draw, get back to the diode D that constitutes unidirectional bridge rectifier 3With diode D 4The closed-loop path of contact d in be connected in series the LED photophore combination that 35-120 led chip constitutes in regular turn; Simultaneously at out-put supply and diode D 1, diode D 4Contact a between a resistor R is set, constitute built-in LED groundwork circuit thus.
The upper end of said resistance R directly connects the rivet 4 of lamp holder 3 ends, and the lower end of said resistance R is connected with unidirectional bridge rectifier one node on being located at substrate through one section metal connecting line connecting through spot welding with it; Constitute the power supply input that has through the direct distribute heat of this resistor R thus.
The two ends of described photophore combination are parallel with capacitor C, described out-put supply and diode D 1, diode D 4Contact between resistor R is set, said out-put supply and diode D 2, diode D 3Contact between be provided with a protective tube A or the insurance resistance R; Constitute a built-in LED operating circuit thus with current stabilization effect.
In the parallel connection one of the two ends of described photophore combination by resistance R 1, triode G 1, triode G 2And resistance R 2The voltage stabilization and current stabilization circuit of forming; Two triode G wherein 1, G 2With shunt resistance R 2Be serially connected in diode D in regular turn from unidirectional bridge rectifier 3With diode D 4The link circuit of contact and LED photophore combination in, triode G wherein 1The C utmost point connect the output of photophore combination, the e utmost point and shunt resistance R 2Link to each other the B utmost point and voltage regulation resistance R 1Output link to each other; Described triode G 2The B utmost point insert triode G 1The e utmost point and voltage regulation resistance R 1After the loop in, triode G 2The c utmost point connect ballast resistance R 2Output and triode G 1The loop of the B utmost point after connecting in, described triode G 2The e utmost point then insert shunt resistance and the diode D that constitutes unidirectional bridge rectifier 3With diode D 4The loop of contact in; Described out-put supply and diode D 1, diode D 4Contact between a resistor R is set, said out-put supply and diode D 2, diode D 3Contact between be provided with a protective tube A or the insurance resistance R; Constitute a built-in LED operating circuit thus with voltage stabilizing, current stabilization effect.
Said out-put supply and diode D 1, diode D 4Contact a between the resistor R that is provided with for by the assembly behind a plurality of little resistance resistance serial or parallel connections, the resistance of this assembly resistance should be identical with the design resistance of resistor R.
Described lamp socket is the cartridge type ceramic body, and the intracavity bottom of this Ceramic lamp base is shelved substrate, and the Ceramic lamp base outer bottom is provided with LED photophore combination 8.
During with the combination of the photophore of 35-40 LED luminescence chip, constitute the operating circuit that is applicable to the 110V supply voltage in described photophore combined.
During with the combination of the LED photophore of 60-120 LED luminescence chip, constitute the operating circuit that is applicable to the 220V supply voltage in described photophore combined.
In practical application, technique scheme can be bulb lamp, candle lamp, shot-light or cylindricality lamp.
This LED light fixture that becomes the light adjusting according to above technical scheme proposition; Constitute simple and easy radiator structure through constituting the voltage regulation resistance that has heat sinking function in the light adjusting circuit, constitute built-in change light governor motion through unidirectional bridge rectifier or unidirectional bridge rectifier and triode again simultaneously.From but the whole LED lamp not only has less profile, simultaneously can directly be used to become light again and regulate.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the basic circuit structure sketch map of the utility model;
Fig. 3 is the operating circuit structural representation of the utility model;
Fig. 4 is the another kind of operating circuit structural representation of the utility model.
Among the figure: 1-cell-shell 2-lamp socket 3-lamp holder 4-metal rivet 5-resistance 6-metal connecting line 7-substrate 8-LED luminescence component T 1-unidirectional bridge rectifier D 1... D N-LED photophore combination C-capacitor A-protective tube R-resistor R 1-voltage regulation resistance R 2-ballast resistance R 3-shunt resistance.
The specific embodiment
This LED light fixture that becomes the light adjusting as shown in Figure 1; Can become the LED light fixture that light is regulated; Comprise lamp holder 3, lamp socket 2, cell-shell 1, LED photophore assembly, substrate and be installed in the power supply changeover device on the substrate, it is characterized in that: the groundwork circuit of the power supply changeover device on the said substrate comprises: unidirectional bridge rectifier T, resistor R, the combination of LED photophore; Diode D in the described unidirectional bridge rectifier 1, diode D 4Contact a, diode D 2, diode D 3Contact c connect communication power supply AC respectively, and from constituting the diode D of unidirectional bridge rectifier 1With diode D 2Contact b draw, get back to the diode D that constitutes unidirectional bridge rectifier 3With diode D 4The closed-loop path of contact d in be connected in series the LED photophore combination that 35-120 led chip constitutes in regular turn; Simultaneously at out-put supply and diode D 1, diode D 4Contact a between a resistor R is set, constitute built-in LED groundwork circuit thus.
The upper end of said resistor R directly connects the rivet 4 of lamp holder 3 ends, and the lower end of said resistance is connected with unidirectional bridge rectifier one node on being located at substrate through one section metal connecting line 6 connecting through spot welding with it; Constitute thus and have power supply input structure through the direct distribute heat of this resistor R.Described metal connecting line 6 is the straight rod type body of rod or the screw type body of rod.The heat that this LED lamp produces in the use can pass metal connecting line 6 through the metal connecting line 6 that is connected with substrate and lead to resistor R, directly heat is spread through lamp holder through resistor R again simultaneously.Why propose metal connecting line 6 is designed to helical form, so long as consider the increase radiating surface.
Said out-put supply and diode D 1, diode D 4Contact a between the resistor R that is provided with for by the assembly behind a plurality of little resistance resistance serial or parallel connections, the resistance of this assembly resistance should be identical with the design resistance of resistor R.
Adopting this effect by a plurality of little resistance resistance series connection or the composition resistor identical with design resistor R resistance that compose in parallel, is the problems of excessive heat that exists when solving single resistor heat radiation.In practical application, find; When adopting single resistor R as heat sink resistance; The surface temperature of resistance can reach 120 ℃; And when adopting a plurality of little resistance resistance to carry out resistor R that serial or parallel connection is combined into, because therefore the increase of the area of dissipation of a plurality of resistance combination makes the temperature in the lamp holder upper space that resistor R is set have only 60 ℃; Obviously this is very effective for the radiating effect that improves whole light fixture.
What accompanying drawing 3 provided is the second kind of implementation that realizes the utility model: the two ends of described photophore combination are parallel with capacitor C, described out-put supply and diode D 1, diode D 4Contact between a resistor R is set, said out-put supply and diode D 2, diode D 3Contact between be provided with a protective tube A or the insurance resistance R; Constitute a built-in LED operating circuit thus with current stabilization effect.
The third implementation of the utility model that accompanying drawing 4 provides: in the parallel connection one of the two ends of described photophore combination by resistor R 1, triode G 1, triode G 2And resistor R 2The voltage stabilization and current stabilization circuit of forming; Two triode G wherein 1, G 2With shunt resistance R 2Be serially connected in diode D in regular turn from unidirectional bridge rectifier 3With diode D 4The link circuit of contact and LED photophore combination in, triode G wherein 1The C utmost point connect the output of photophore combination, the e utmost point and shunt resistance R 2Link to each other the B utmost point and voltage regulation resistance R 1Output link to each other; Described triode G 2The B utmost point insert triode G 1The e utmost point and voltage regulation resistance R 1After the loop in, triode G 2The c utmost point connect ballast resistance R 2Output and triode G 1The loop of the B utmost point after connecting in, described triode G 2The e utmost point then insert shunt resistance and the diode D that constitutes unidirectional bridge rectifier 3With diode D 4The loop of contact in; Described out-put supply and diode D 1, diode D 4Contact between a resistor R is set, said out-put supply and diode D 2, diode D 3Contact between be provided with a protective tube A or the insurance resistance R; Constitute a built-in LED operating circuit thus with voltage stabilizing, current stabilization effect.
Described lamp socket 2 is the cartridge type ceramic body, and the intracavity bottom of this Ceramic lamp base is shelved substrate 7 Ceramic lamp base outer bottoms LED photophore combination 8 is set.Whole Ceramic lamp base is divided into lamp head cavity and cell-shell portion cavity with lamp body, and one section metal connecting line 6 of resistance R warp that described upper chamber is provided with is connected with unidirectional bridge rectifier one contact a, the other end of resistor R directly is connected with rivet 4; One end of one section metal connecting line 6 in addition is connected with unidirectional bridge rectifier one contact C, and 6 lamp holder metallic objects with the formation electric power loop of the other end and metal connecting line are connected.
The composition structure of above-mentioned this power supply components and parts; Be actually the resistor R in the power circuit is used as a heat energy vaporizer, the heat on the heat energy that produces by power supply when making light fixture work (comprising the heat energy that unidirectional bridge rectifier produces) the concentrated reflection resistor R.The present technique scheme was both conducted heat to resistor R, and through resistor R the rivet of heat through the lamp holder top was distributed through two sections thicker metal connecting lines 6 of diameter; Also distribute simultaneously through metallic lamp holder.
In addition, the heat energy that the combination of LED photophore is produced in the said light fixture then distributes through ceramic body lamp socket itself or its special construction.
During with the combination of the photophore of 35-40 LED luminescence chip, constitute the operating circuit that is applicable to the 110V supply voltage in described photophore combined.
During with the combination of the LED photophore of 60-120 LED luminescence chip, constitute the operating circuit that is applicable to the 220V supply voltage in described photophore combined.
In practical application, technique scheme can be bulb lamp, candle lamp, shot-light or cylindricality lamp.
This LED light fixture that becomes the light adjusting according to above technical scheme proposition; Because set inside dedicated control circuit at light fixture; Therefore make it directly become photocontrol through additional acoustic control, light-operated switch, do not need complicated control device or equipment as the incandescent lamp that generally uses now to the LED lamp.

Claims (10)

1. one kind can become the LED light fixture that light is regulated; Comprise lamp holder (3), lamp socket (2), cell-shell (1), LED photophore assembly, substrate and be installed in the power supply changeover device on the substrate, it is characterized in that: the groundwork circuit of the power supply changeover device on the said substrate comprises: unidirectional bridge rectifier T, resistor R, the combination of LED photophore; Diode D in the described unidirectional bridge rectifier 1, diode D 4Contact a, diode D 2, diode D 3Contact c connect communication power supply AC respectively, and from constituting the diode D of unidirectional bridge rectifier 1With diode D 2Contact b draw, get back to the diode D that constitutes unidirectional bridge rectifier 3With diode D 4The closed-loop path of contact d in be connected in series the LED photophore combination that 35-120 led chip constitutes in regular turn; Simultaneously at out-put supply and diode D 1, diode D 4Contact a between a resistor R is set, constitute built-in LED groundwork circuit thus.
2. the LED light fixture that becomes the light adjusting as claimed in claim 1; It is characterized in that: the upper end of said resistance R directly connects the rivet (4) of lamp holder (3) end, and the lower end of said resistance is connected with unidirectional bridge rectifier one node on being located at substrate through one section metal connecting line (6) of connecting through spot welding with it; Constitute thus and have power supply input structure through the direct distribute heat of this resistor R.
3. the LED light fixture that becomes the light adjusting as claimed in claim 1 is characterized in that: the two ends of described photophore combination are parallel with capacitor C, described out-put supply and diode D 1, diode D 4Contact between a resistor R is set, said out-put supply and diode D 2, diode D 3Contact between be provided with a protective tube A or the insurance resistance R; Constitute a built-in LED operating circuit thus with current stabilization effect.
4. as claimed in claim 1ly become the LED light fixture that light is regulated, it is characterized in that: in the parallel connection one of the two ends of described photophore combination by resistance R 1, triode G 1, triode G 2And resistance R 2The voltage stabilization and current stabilization circuit of forming; Two triode G wherein 1, G 2With divert shunt resistor R 2Be serially connected in diode D in regular turn from unidirectional bridge rectifier 3With diode D 4The link circuit of contact and LED photophore combination in, triode G wherein 1The C utmost point connect the output of photophore combination, the e utmost point and shunt resistance R 2Link to each other the B utmost point and voltage regulation resistance R 1Output link to each other; Described triode G 2The B utmost point insert triode G 1The e utmost point and voltage regulation resistance R 1After the loop in, triode G 2The c utmost point connect ballast resistance R 2Output and triode G 1The loop of the B utmost point after connecting in, described triode G 2The e utmost point then insert shunt resistance and the diode D that constitutes unidirectional bridge rectifier 3With diode D 4The loop of contact in; Described out-put supply and diode D 1, diode D 4Contact between a resistor R is set, said out-put supply and diode D 2, diode D 3Contact between be provided with a protective tube A or the insurance resistance R; Constitute a built-in LED operating circuit thus with voltage stabilizing, current stabilization effect.
5. the LED light fixture that becomes the light adjusting as claimed in claim 2, it is characterized in that: described metal connecting line (6) is the straight rod type body of rod or the screw type body of rod.
6. the LED light fixture that becomes the light adjusting as claimed in claim 1, it is characterized in that: described lamp socket (2) is the cartridge type ceramic body, the intracavity bottom of this Ceramic lamp base is shelved substrate (7) Ceramic lamp base outer bottom LED photophore combination (8) is set.
7. the LED light fixture that becomes the light adjusting as claimed in claim 1 is characterized in that: said out-put supply and diode D 1, diode D 4Contact a between the resistor R that is provided with for by the assembly behind a plurality of little resistance resistance serial or parallel connections, the resistance of this assembly resistance should be identical with the design resistance of resistor R.
8. the LED light fixture that becomes the light adjusting as claimed in claim 1; It is characterized in that: described lamp socket (2) is the cartridge type ceramic body; The intracavity bottom of this Ceramic lamp base is shelved substrate (7) Ceramic lamp base outer bottom LED photophore combination (8) is set; Said Ceramic lamp base is divided into lamp head cavity and cell-shell portion cavity with lamp body, and resistance R one section metal connecting line of warp (6) that described upper chamber is provided with is connected with unidirectional bridge rectifier one contact a, the other end of resistance R directly is connected with rivet (4); One end of one section metal connecting line (6) in addition is connected with unidirectional bridge rectifier one contact C, and the other end then is connected with the lamp holder metallic object that constitutes electric power loop with metal connecting line (6).
9. as claimed in claim 1ly become the LED light fixture that light is regulated, it is characterized in that: when described photophore combined made up with the photophore of 35-40 LED luminescence chip, formation was applicable to the operating circuit of 110V supply voltage.
10. as claimed in claim 1ly become the LED light fixture that light is regulated, it is characterized in that: when described photophore combined made up with the LED photophore of 60-120 LED luminescence chip, formation was applicable to the operating circuit of 220V supply voltage.
CN2012200803228U 2012-03-06 2012-03-06 Dimming-adjustable LED light fixture Expired - Fee Related CN202442169U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200803228U CN202442169U (en) 2012-03-06 2012-03-06 Dimming-adjustable LED light fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200803228U CN202442169U (en) 2012-03-06 2012-03-06 Dimming-adjustable LED light fixture

Publications (1)

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CN202442169U true CN202442169U (en) 2012-09-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013131252A1 (en) * 2012-03-06 2013-09-12 上海嘉塘电子有限公司 Built-in led operating circuit capable of dimming led lamp
CN107420771A (en) * 2017-08-23 2017-12-01 漳州立达信光电子科技有限公司 A kind of LED
CN108870113A (en) * 2018-07-13 2018-11-23 东莞市享达光电科技有限公司 A kind of lamp housing with stem

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013131252A1 (en) * 2012-03-06 2013-09-12 上海嘉塘电子有限公司 Built-in led operating circuit capable of dimming led lamp
CN107420771A (en) * 2017-08-23 2017-12-01 漳州立达信光电子科技有限公司 A kind of LED
CN108870113A (en) * 2018-07-13 2018-11-23 东莞市享达光电科技有限公司 A kind of lamp housing with stem

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120919

Termination date: 20150306

EXPY Termination of patent right or utility model