CN102080779A - Efficient energy-saving type LED (light emitting diode) straight pipe lamp - Google Patents
Efficient energy-saving type LED (light emitting diode) straight pipe lamp Download PDFInfo
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- CN102080779A CN102080779A CN2010105715727A CN201010571572A CN102080779A CN 102080779 A CN102080779 A CN 102080779A CN 2010105715727 A CN2010105715727 A CN 2010105715727A CN 201010571572 A CN201010571572 A CN 201010571572A CN 102080779 A CN102080779 A CN 102080779A
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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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Abstract
The invention discloses an efficient energy-saving type LED (light emitting diode) straight pipe lamp which comprises a power supply converter, an LED light source and a straight pipe lampshade, wherein the power supply converter is a rectifier converter circuit which is composed of a current-limiting rectifier circuit, a synergia circuit and a voltage stabilization protective circuit; four rectifier diodes of the current-limiting rectifier circuit constitute a bridge rectifier circuit, an electrical resistor R1 and a capacitor C1; two polarities leaded out by an alternating current (AC) power supply are connected with a diode D4, a contact of a diode D1, a diode D3 and a contact of a diode D2 in a uni-directional bridge type rectifier circuit; the capacitor C1 is connected to the contacts from an output power supply to the D4 and D1 in the uni-directional bridge type rectifier circuit in series; the resistor R1 is in parallel connection with two ends of the resistor R1; the capacitor C2 serves as the synergia circuit B; the voltage stabilization protective circuit C is composed of a voltage stabilization pipe T2 and a resistor R2; and the synergia circuit B and the voltage stabilization protective circuit C are sequentially respectively in parallel connection with two polarity lines leading from the contact of the diode D4 and diode D3 and the contact of the diode D2 and the diode D1 in the bridge type rectifier circuit to the LED light source.
Description
Technical field
The present invention relates to a kind of LED light fixture, especially a kind of high-efficiency and energy-saving type LED straight tube light fixture.
Background technology
In recent years since, constantly perfect along with the LED technology, the various performances of illuminating LED light fixture have had greatly progressive, more because the LED lighting has the factory director in service life, start-up time is short, energy-saving effect is remarkable, 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.Although the LED light fixture is than also energy-conservation about 50% with the fluorescent lamp of power,, influenced the widely-used of LED light fixture because the price of LED light fixture is with the power fluorescent lamp 5 to 10 times at present.The reason that why causes LED light fixture price to be difficult to reduce is: the LED lamp is the photoelectric device of being made by led chip, except that the high-quality chip mainly from this factor of external import, the operating voltage that its led chip requires must be stablized, the small increase of operating voltage will cause the rapid increase (seeing shown in the accompanying drawing 4) of operating current, can cause burning of heating of LED light fixture and even whole light fixture.So common LED light fixture all is furnished with the operating current that constant voltage source or constant-current supply are stablized led chip, but constant voltage, the complicated volume heaviness of the structural circuit of constant-current supply, production process is numerous and diverse, cost an arm and a leg, also be one of the major reason that causes the cost price costliness of LED light fixture, unfavorable to the popularization in market.
Therefore, how under the prerequisite that does not influence led function, research and develop LED light fixture cheaply, can substitute the widely used hg fluorescent lamp that contains at present, just become a big problem of the sector research and development and manufacturing firm.
The inventor is by discovering, the key factor that reduces the price of LED light fixture is: 1, make the power supply of cheap LED light fixture, 2, produce can with the supporting led light source of cheap power supply.
By research, the inventor finds, led chip electric current when the less increase of voltage is understood the situation that sharply increases and cause led chip to burn and is existed, if but we install a current controller at the current output circuit of power supply, when the LED both end voltage changed increase, power supply was not supplied the big electric current that causes led chip to burn, and led chip just can not burn, and such power supply can not be a constant current constant voltage just, and cost just can lower greatly.
The inventor has invented a kind of novel more cheap energy-efficient LED straight tube light fixture.
Summary of the invention
Purpose of the present invention: be intended to propose a kind of LED straight tube light fixture that more low-cost more high efficiency is imitated that has, can reach the use standard of LED light fixture, reduce simultaneously the cost of LED light fixture greatly, make the LED light fixture rapidly replace fluorescent lamps enter huge numbers of families and use the rapid popularization of useful energy-conserving and environment-protective light fixture.
This high-efficiency energy-saving LED straight tube light fixture; comprise power supply changeover device; led light source, straight tube lampshade; power supply changeover device wherein; led light source and lampshade connect and compose lamp body in regular turn by connector, it is characterized in that: described power supply changeover device is a rectification change-over circuit T who is made up of rectifier circuit current limiting A, synergy circuit B, protective circuit of voltage regulation C
1Rectifier circuit current limiting is wherein formed bridge rectifier, resistor R by four commutation diodes
1, capacitor C
1, wherein the two poles of the earth of drawing by AC power AC respectively with bridge rectifier in diode D
4, diode D
1Contact, diode D
3, diode D
2Contact link to each other capacitor C
1Be connected on out-put supply D to the bridge rectifier
4, D
1Contact in, described resistor R
1Then be connected in parallel on the two ends of capacitor C1; Described synergy circuit B is by capacitor C
2Take on, described protective circuit of voltage regulation C is by voltage-stabiliser tube T
2, resistor R
2And resistor R
3Form voltage-stabiliser tube T wherein
2, resistor R
2Be connected in parallel in the output circuit of bridge rectifier resistor R
3Then be connected on diode T
2After the output circuit of bridge rectifier in; Described synergy circuit B also be connected in parallel on by in the bridge rectifier from diode D
4, diode D
3Contact and diode D
2, diode D
1Two contacts are drawn in two polar curves of led light source.
Described led light source is composed in series by 30 ~ 70 led chips, is placed on the substrate in the straight tube lampshade.
This high-efficiency energy-saving LED straight tube light fixture according to above technical scheme proposition, the member of the power supply changeover device of forming is simple, cost significantly lowers, the Sasser that is pulsed through the power source voltage and the electric current of rectification output, belong to neither constant voltage, the also dc source of non-constant current, and the big electric current restriction of capacitor C 1, make light fixture both can guarantee that the LED photophore was normally luminous, nor can make led chip impaired when voltage raises, the more important thing is: the power factor (PF) of the LED light fixture that this power supply constitutes is capacitive, can play the effect of compensation network.
Description of drawings
Fig. 1 is the structural representation of high-efficiency energy-saving LED straight tube light fixture;
Fig. 2 is that the physical circuit of power supply changeover device constitutes schematic diagram;
Fig. 3 is the impulse wave schematic diagram of power supply changeover device output;
Fig. 4 is led chip operating voltage and operating current graph of relation.
Among the figure: 1-straight tube lampshade 2-LED chip 3-lamp base 4-power supply changeover device A-rectifier circuit current limiting B-synergy circuit C-protective circuit of voltage regulation D-circuit of light sources T
1-unidirectional bridge rectifier T
2-voltage-stabiliser tube.
The specific embodiment
This high-efficiency energy-saving LED straight tube light fixture as shown in Figure 1, 2, it is a kind of inventive improvements to existing like product.This high-efficiency energy-saving LED straight tube light fixture; comprise power supply changeover device; led light source, straight tube lampshade; power supply changeover device wherein; led light source and lampshade connect and compose lamp body in regular turn by connector, it is characterized in that: described power supply changeover device is a rectification change-over circuit T who is made up of rectifier circuit current limiting A, synergy circuit B, protective circuit of voltage regulation C
1Four commutation diodes of rectifier circuit current limiting are wherein formed bridge rectifier, resistor R
1, capacitor C
1, wherein, comprise power supply changeover device by AC power AC kind high-efficiency energy-saving LED straight tube light fixture, the two poles of the earth that led light source is drawn respectively with bridge rectifier in diode D
4, diode D
1Contact, diode D
3, diode D
2Contact link to each other capacitor C
1Be connected on out-put supply D to the unidirectional bridge rectifier
4, D
1Contact in, described resistor R
1Then be connected in parallel on resistor R
1Two ends; Described synergy circuit B is by capacitor C
2Take on, described protective circuit of voltage regulation C is by voltage-stabiliser tube T
2, resistor R
2And resistor R
3Form voltage-stabiliser tube T wherein
2, resistor R
2Be connected in parallel in the output circuit of bridge rectifier resistor R
3Then be connected on diode T
2After the output circuit of bridge rectifier in; Described synergy circuit B also be connected in parallel on by in the bridge rectifier from diode D
4, diode D
3Contact and diode D
2, diode D
1Two contacts are drawn in two polar curves of led light source.
Described led light source is composed in series by 30 ~ 70 led chips, is placed on the substrate in the straight tube lampshade.
Capacitor C in this power supply
1Can play the effect of the big electric current of restriction, and suitably select the capacity numerical values recited, can keep the running current of led light source.In order to cooperate this power supply, the chip of LED adopt 30 to the method for 70 series connection improving the voltage that bears of LED light source,, simultaneously for the better protection led light source, voltage-stabiliser tube T
2With resistance R
2Played the high-tension release path of surge, capacitor C
2The efficient that can improve power supply greatly is set.
Be noted that especially: the power factor (PF) of the LED light fixture that this power supply constitutes is capacitive, and nearly all electrical equipment all is perceptual at present, and it can play the effect of compensation network this light fixture.
The LED straight tube light fixture that this more high efficiency that proposes according to above technical scheme is imitated, because the circuit of power supply is very simple, the power supply diameter is less than the lampshade diameter, can make power supply put into fluorescent tube inside, make that this LED straight lamp can be directly and 220V, therefore the serviceability of LED light fixture can greatly improve in the external electrical network UNICOM of 110V, has certain advantage for the cost of manufacture that reduces the LED light fixture simultaneously.
Claims (2)
1. high-efficiency energy-saving LED straight tube light fixture, comprise power supply changeover device, led light source, straight tube lampshade, power supply changeover device wherein, led light source and lampshade connect and compose lamp body in regular turn by connector, it is characterized in that: described power supply changeover device is a rectification change-over circuit T1 who is made up of rectifier circuit current limiting A, synergy circuit B, protective circuit of voltage regulation C; Four commutation diodes of rectifier circuit current limiting are wherein formed bridge rectifier, resistor R 1, capacitor C1, wherein the two poles of the earth of being drawn by AC power AC link to each other with the contact, the contact of diode D3, diode D2 of diode D4, diode D1 in the bridge rectifier respectively, capacitor C1 is connected in the contact of out-put supply D4, D1 to the bridge rectifier, 1 two ends that are connected in parallel on resistor R 1 of described resistor R; Described synergy circuit B is taken on by capacitor C2, described protective circuit of voltage regulation C is made up of voltage-stabiliser tube T2, resistor R 2 and resistor R 3, voltage-stabiliser tube T2 wherein, resistor R 2 are connected in parallel in the output circuit of bridge rectifier, and 3 of resistor R are connected in the output circuit of the bridge rectifier behind the diode T2; Described synergy circuit B also is connected in parallel on by contact and diode D2, diode D1 two contacts from diode D4, diode D3 in the bridge rectifier and draws in two polar curves of led light source.
2. a kind of high-efficiency energy-saving LED straight tube light fixture as claimed in claim 1, it is characterized in that: described led light source is composed in series by 30 ~ 70 led chips, is placed on the substrate in the straight tube lampshade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105715727A CN102080779A (en) | 2010-12-03 | 2010-12-03 | Efficient energy-saving type LED (light emitting diode) straight pipe lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105715727A CN102080779A (en) | 2010-12-03 | 2010-12-03 | Efficient energy-saving type LED (light emitting diode) straight pipe lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102080779A true CN102080779A (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105715727A Pending CN102080779A (en) | 2010-12-03 | 2010-12-03 | Efficient energy-saving type LED (light emitting diode) straight pipe lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932998A (en) * | 2012-11-13 | 2013-02-13 | 镇江路美耐光电科技有限公司 | Power converter |
| WO2013131240A1 (en) * | 2012-03-06 | 2013-09-12 | 上海嘉塘电子有限公司 | Led lamp capable of regulating dimming |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571241A (en) * | 2009-06-03 | 2009-11-04 | 陈冬长 | LED lamp |
| CN101858525A (en) * | 2010-07-20 | 2010-10-13 | 李忠训 | Integral constant-current driving LED fluorescent lamp |
| CN201651857U (en) * | 2010-02-10 | 2010-11-24 | 江苏生日快乐光电科技有限公司 | Integrated packaging type LED lamp tube |
-
2010
- 2010-12-03 CN CN2010105715727A patent/CN102080779A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571241A (en) * | 2009-06-03 | 2009-11-04 | 陈冬长 | LED lamp |
| CN201651857U (en) * | 2010-02-10 | 2010-11-24 | 江苏生日快乐光电科技有限公司 | Integrated packaging type LED lamp tube |
| CN101858525A (en) * | 2010-07-20 | 2010-10-13 | 李忠训 | Integral constant-current driving LED fluorescent lamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013131240A1 (en) * | 2012-03-06 | 2013-09-12 | 上海嘉塘电子有限公司 | Led lamp capable of regulating dimming |
| CN102932998A (en) * | 2012-11-13 | 2013-02-13 | 镇江路美耐光电科技有限公司 | Power converter |
| CN102932998B (en) * | 2012-11-13 | 2014-09-17 | 镇江乐电半导体科技有限公司 | Power converter |
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Application publication date: 20110601 |