CN201954345U - LED (light emitting diode) down light - Google Patents
LED (light emitting diode) down light Download PDFInfo
- Publication number
- CN201954345U CN201954345U CN2011200820055U CN201120082005U CN201954345U CN 201954345 U CN201954345 U CN 201954345U CN 2011200820055 U CN2011200820055 U CN 2011200820055U CN 201120082005 U CN201120082005 U CN 201120082005U CN 201954345 U CN201954345 U CN 201954345U
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- Prior art keywords
- led
- rectifying
- light
- filtering
- wave
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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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides an LED (light emitting diode) down light which has the technical key points that a rectifying and filtering ballast is arranged at the upper side of a radiator, the lower side of the rectifying and filtering ballast is connected with a bee conic light condensing cup through a heat conducting base plate, the bee conic light condensing cup is connected with a light condensing bowl, the outer side of the light condensing bowl is provided with a light transmission light cover, and an LED is arranged at the bottom of the bee conic light condenser cup, and the rectifying and filtering ballast is connected with an LED light emitting protection circuit; the rectifying and filtering ballast comprises a rectifying bridge, the input end of the rectifying bridge is connected with a current limiting capacitor of a parallel resistor in series, and the output end of the rectifying bridge is sequentially connected with a filtering capacitor and a resistor in parallel; and the LED light emitting protection circuit comprises one LED or at least two LEDs which are connected in series, each LED is also connected with a voltage stabilizing diode in parallel, and the output end of the rectifying and filtering ballast is connected with the input end of the LED light emitting protection circuit. The LED down light saves 30-50% of power, is convenient to use and has the advantages of simple structure, low maintenance cost and long service life.
Description
Technical field
The utility model belongs to technical field of lamps, specifically a kind of LED Down lamp light fixture of relative reduction LED heating temp.
Background technology
As everyone knows, electric resources is one of mankind's valuable source of depending on for existence and development always, and its indispensable property and irreplaceability are the incontrovertible facts.Along with economic growth and social progress, the raising of the expansion of urban construction, Increase of population and people's quality of life, the utilization of electric resources sharply increases, cause the running of excess load to power supply system, and be that streets and lanes or local-style dwelling houses factory all will increase a considerable amount of lighting apparatus at night in order to obtain enough illuminations, these equipment majorities are based on common various light fixtures.Common light fixture is made up of the bulb single light source of different capacity, generally speaking because the power of bulb is big more just bright more, improves brightness and just realizes that by changing more powerful bulb the electric weight of Shi Yonging is just big more like this.In recent years, a kind of light fixture of doing light source with LED is used in a lot of fields, though it is a lot of than the common bulb power saving, but this LED light fixture is various in style, the LED lamp all is under the rated operational voltage luminous when using usually, it produces a large amount of heat energy, and therefore, the radiator that people use various structures passes the heat of its release.Although radiator can reduce the temperature of LED relatively, than higher, because the heat that LED self is produced is added environment temperature, high temperature tends to directly shorten the service life of LED to the LED of different structure for a long time to the environment for use temperature requirement.In addition, tradition LED rectification circuit is by the transformer step-down before bridge rectifier, in case the input voltage instantaneous variation takes place, such as being subjected to effects of lightning, then the output voltage of this transformer also changes simultaneously, causes voltage change between the PN junction of LED, connect phenomenon and produce to dodge, promptly continue lamp and dodge, this also will shorten the service life of LED greatly, and phenomenon also will increase people's visual fatigue simultaneously greatly taking place to dodge even.
Summary of the invention
The purpose of this utility model provides a kind of LED Down lamp light fixture of relative reduction LED heating temp.
The purpose of this utility model is achieved in that it comprises LED, transparent lamp shade, heat-conducting substrate and radiator, it is characterized in that: the upside of described radiator is provided with a rectifying and wave-filtering ballast, the downside of radiator is connected with honeybee awl prefocus cup by heat-conducting substrate, this honeybee awl prefocus cup connects convergent bowl, the convergent bowl bottom of honeybee awl prefocus cup correspondence has cellular perforate, in the convergent bowl arranged outside transparent lamp shade is arranged, be provided with LED in honeybee awl prefocus cup bottom, the rectifying and wave-filtering ballast connects the luminous holding circuit of LED; Described rectifying and wave-filtering ballast includes a rectifier bridge (D
1-D
4), at rectifier bridge (D
1-D
4) input be serially connected with a resistance R in parallel
1Current limiting capacitance C
1, at rectifier bridge (D
1-D
4) output be parallel with filter capacitor C successively
2And resistance R
2The luminous holding circuit of LED includes one, two or more LED that are connected in series mutually, each LED also and be connected to a Zener diode, the output of rectifying and wave-filtering ballast is connected with the input of the luminous holding circuit of LED.
The luminous holding circuit of LED includes 3-7 the LED of serial connection mutually.
For the operating current that makes LED is lower than rated current, and then the operating temperature of LED is reduced greatly, prolongs the service life of LED, then the Zener diode current value for and meet the 50-85% of LED rated current.
The utility model is owing to adopt one to be parallel with resistance R
1Current limiting capacitance C
1Thereby, replaced transformer, greatly reduce electricity and decrease phenomenon, saved the 30-50% of actual power consumption; With LED and Zener diode that connects and current limiting capacitance C
1Match, fundamentally eliminated the fluctuation of input power supply, but also played a part turning circuit relatively; That the utility model also possesses is simple in structure, easy to use, maintenance cost is low, advantages such as long service life.
Description of drawings
Fig. 1 is a sectional structure simplified schematic diagram of the present utility model;
Fig. 2 looks up the structural representation sketch for Fig. 1's;
Fig. 3 is the right TV structure simplified schematic diagram of Fig. 1;
Fig. 4 is circuit theory diagrams of the present utility model.
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.
The specific embodiment
Shown in Fig. 1～3; the utility model primary structure includes 7 LED7, transparent lamp shade 5, heat-conducting substrate 6 and radiator 2; the upside of radiator is provided with a rectifying and wave-filtering ballast 1; the downside of rectifying and wave-filtering radiator is connected with honeybee awl prefocus cup 3 by heat-conducting substrate; this honeybee awl prefocus cup 3 connects convergent bowl 4; convergent bowl 4 bottoms of honeybee awl prefocus cup 3 correspondences have cellular perforate; in convergent bowl 4 arranged outside transparent lamp shade 5 is arranged; be provided with LED7 in honeybee awl prefocus cup bottom, the rectifying and wave-filtering ballast connects the luminous holding circuit of LED.
As shown in Figure 4, the rectifying and wave-filtering ballast includes a rectifier bridge D
1-D
4, at rectifier bridge D
1-D
4Input be serially connected with a resistance R in parallel
1Current limiting capacitance C
1, at rectifier bridge D
1-D
4Output be parallel with filter capacitor C successively
2And resistance R
2The luminous holding circuit of LED includes seven LED of serial connection mutually
1-LED
7, each LED also and be connected to a Zener diode, the output of rectifying and wave-filtering ballast is connected with the input of the luminous holding circuit of LED.
For the operating current that makes LED is lower than rated current, and then the operating temperature of LED is reduced greatly, prolongs the service life of LED, then the Zener diode current value for and meet the 50-85% of LED rated current.
During use, power supply inserts from rectifying and wave-filtering ballast input, at first through current limiting capacitance C
1And R
1The current limiting capacitance current limliting enters rectifier bridge D then
1-D
4Carry out rectification, enter after the rectification because filter capacitor C
2And resistance R
2Carry out the metastable out-put supply of filtering, enter LED light holding circuit, by shown in Figure 2, the LED one of this example has 7, so the value of n is 7 among Fig. 4, at Zener diode D
5-D
11With current limiting capacitance C
1Cooperation under, Zener diode D
5-D
11For and meet the 50-85% of LED rated current, and then to make the electric current of each LED be the 50-85% of rated current.
Its operating temperature with and decide the contrast such as the following table of operating temperature:
| Environment temperature | LED temperature during the 50-85% rated current | LED temperature during 100% rated current |
| 20℃ | 39℃ | 52℃ |
| 25℃ | 42℃ | 55℃ |
| 30℃ | 45℃ | 58℃ |
| 15℃ | 36℃ | 50℃ |
As above shown in the table, the LED temperature was low when the LED temperature was obviously than 100% rated current when the utility model had been realized the 50-85% rated current, thereby had realized the purpose of this utility model.
Claims (3)
1. LED Down lamp light fixture, it comprises LED, transparent lamp shade, heat-conducting substrate and radiator, it is characterized in that: the upside of described radiator is provided with a rectifying and wave-filtering ballast, the downside of rectifying and wave-filtering radiator is connected with honeybee awl prefocus cup by heat-conducting substrate, this honeybee awl prefocus cup connects convergent bowl, the convergent bowl bottom of honeybee awl prefocus cup correspondence has cellular perforate, in the convergent bowl arranged outside transparent lamp shade is arranged, be provided with LED in honeybee awl prefocus cup bottom, the rectifying and wave-filtering ballast connects the luminous holding circuit of LED; Described rectifying and wave-filtering ballast includes a rectifier bridge (D
1-D
4), at rectifier bridge (D
1-D
4) input be serially connected with a resistance R in parallel
1Current limiting capacitance C
1, at rectifier bridge (D
1-D
4) output be parallel with filter capacitor C successively
2And resistance R
2The luminous holding circuit of LED includes one, two or more LED that are connected in series mutually, each LED also and be connected to a Zener diode, the output of rectifying and wave-filtering ballast is connected with the input of the luminous holding circuit of LED.
2. LED Down lamp light fixture according to claim 1 is characterized in that: the luminous holding circuit of LED includes 3-7 the LED of serial connection mutually.
3. LED Down lamp light fixture according to claim 1 is characterized in that: the Zener diode current value for and meet the 50-85% of LED rated current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200820055U CN201954345U (en) | 2011-03-25 | 2011-03-25 | LED (light emitting diode) down light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200820055U CN201954345U (en) | 2011-03-25 | 2011-03-25 | LED (light emitting diode) down light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954345U true CN201954345U (en) | 2011-08-31 |
Family
ID=44498455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200820055U Expired - Fee Related CN201954345U (en) | 2011-03-25 | 2011-03-25 | LED (light emitting diode) down light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116431A (en) * | 2011-03-25 | 2011-07-06 | 石玉洲 | LED (light-emitting diode) down lamp |
-
2011
- 2011-03-25 CN CN2011200820055U patent/CN201954345U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116431A (en) * | 2011-03-25 | 2011-07-06 | 石玉洲 | LED (light-emitting diode) down lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DALIAN HENGSHI ENERGY SAVING EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SHI YUZHOU Effective date: 20111014 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111014 Address after: 116600 No. two, No. 15, Liaohe West Road, Dalian Development Zone, Liaoning Patentee after: DALIAN HENGSHI ENERGY SAVING EQUIPMENT CO., LTD. Address before: 116600 No. two, No. 15, Liaohe West Road, Dalian Development Zone, Liaoning Patentee before: Shi Yuzhou |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140325 |