CN104837282A - High-efficiency lighting device - Google Patents
High-efficiency lighting device Download PDFInfo
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- CN104837282A CN104837282A CN201510284650.8A CN201510284650A CN104837282A CN 104837282 A CN104837282 A CN 104837282A CN 201510284650 A CN201510284650 A CN 201510284650A CN 104837282 A CN104837282 A CN 104837282A
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- diode
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention provides a high-efficiency lighting device which comprises a lighting device pedestal, a switching power supply, a lamp stand and a lamp holder, the lamp holder is mounted at the top of the lamp stand, and the switching power supply comprises a resonant converter which includes an intermediately tapped transformer. The high-efficiency lighting device with the resonant converter which includes the intermediately tapped transformer is low in loss and high in power density, the work life and reliability of the lighting device can be improved, and the requirement for using paper at any time can be met.
Description
Technical field
The invention belongs to illuminations field, particularly a kind of high effect, illumination.
Background technology
Lighting device become already people live study necessity, especially for need be in study student and job family.
Lighting device traditional is at present while meeting illuminations function, many uses Switching Power Supply carries out folding, the course of work of the Switching Power Supply that traditional lighting device uses is by " copped wave ", namely the direct voltage of input is cut into amplitude and equals that the pulse voltage of input voltage amplitude realizes.The duty ratio of pulse is regulated by the controller of Switching Power Supply; Once input voltage is cut into ac square wave, its amplitude just can be raised by transformer or reduce, just can be increased the magnitude of voltage of output by the secondary winding number increasing transformer, finally these AC wave shape just obtain VD after rectifying and wave-filtering.
But there is switching loss, the surge voltage that can produce when cut-off switch element and the lighting device poor work stability caused because of voltage instability in the lighting device of the Switching Power Supply using above-mentioned lighting device to use, its loss is high, power density is low, working life and the low problem of reliability; And only play the conventional illuminator of illuminations effect, paper using demand when people are sitting in before table cannot be met.
Summary of the invention
Technical problem to be solved by this invention, be for the defect in aforementioned background art and deficiency, propose a kind of high effect, illumination with the Switching Power Supply of the resonate converter of interphase reactor transformer, its loss is low, power density is high, can improve working life and the reliability of lighting device; And user's paper using demand at any time can be realized.
The present invention is achieved through the following technical solutions above-mentioned purpose:
For the technical disadvantages that existing lighting device exists, redesign a kind of high effect, illumination, comprise lighting device base, Switching Power Supply, lamp stand and be arranged on the lamp holder on lamp stand top, described Switching Power Supply comprises the resonate converter with interphase reactor transformer.
Further, described resonate converter comprises input voltage Uin, former limit and secondary and all has tapped transformer T, switch element S1, S2, S3, S4, diode D1, D2, D3, D4, inductance L and controller, and each switching tube has antiparallel parasitic diode and parasitic capacitance; The anode of described input voltage Uin connects the collector electrode of described switch element S1, S3, and the negative terminal of input voltage Uin connects the negative electrode of diode D1, D2, the emitter of switch element S2, S4; The different name end of former limit winding centre tap the first half winding connects the anode of diode D1, the Same Name of Ends of former limit winding centre tap the latter half winding connects the anode of diode D2, and the Same Name of Ends of former limit winding centre tap the first half winding N1 is connected with the anode of input voltage Uin with the tie point of the different name end of former limit winding centre tap the latter half winding N2; The emitter of switch element S1 connects the anode of diode D3, the negative electrode of diode D3 connects the Same Name of Ends of vice-side winding centre tap the first half winding, the different name end of vice-side winding centre tap the first half winding N3 is connected with the Same Name of Ends of vice-side winding centre tap the latter half winding N4, and its tie point is connected with one end of inductance L, the different name end of vice-side winding centre tap the latter half winding is connected with the anode of diode D4, the collector electrode of the negative electrode connecting valve element S2 of diode D4; The emitter of switch element S3 is connected with the collector electrode of switch element S4, and the other end of its tie point and inductance L and load are connected
Further, its topological structure is: comprise input voltage U
in, former limit and secondary all have tapped transformer T, switch element S1, S2, S3, S4, diode D1, D2, D3, D4, inductance L.Above-mentioned switch element can be IGBT, and diode is fast recovery diode.
Further, described controller control switch S1 and S2 alternate conduction, S3 and S4 alternate conduction, by the resonance circuit that the stray capacitance of inductance L and each switch element is formed, each switch element of conducting when the terminal voltage of each switch element is 0, thus it is open-minded to realize no-voltage.
Further, described switching tube is IGBT or MOSFET.
Further, described input voltage is storage battery, fuel cell or photovoltaic cell.
Further, described each diode is fast recovery diode or Schottky diode.
Further, described lamp stand comprises hinged coil paper loop bar and support bar, described support bar is vertically placed, comprise the neck bar on top and be fixed on the spill bar of described neck bar bottom, described spill bar bottom and described coil paper loop bar lower hinge, and the recess of described spill bar is towards described coil paper loop bar, described neck bar engages with described coil paper loop bar top with described spill bar junction.
Further, the deck of opening surface to described lamp stand is provided with on described coil paper loop bar top.
Further, described lamp stand bottom is fixed on the centre position of lamp socket, and the power line of described lamp holder is arranged in neck bar and described spill bar, and stretches out bottom described spill bar and stretch out.
Compared with prior art, high reliability lighting device of the present invention has following advantages:
The switching frequency that the lighting device with the Switching Power Supply of the resonate converter of interphase reactor transformer utilizes the form of interphase reactor transformer can realize by control circuit control switch element, makes output voltage become predetermined value.
And because electric current flows through negative direction during each switching elements ON, therefore do not produce switching losses.
And because carried out resonance action, surge voltage during cut-off switch element also can not be produced.
While realizing energy feedback, utilize the parasitic capacitance of inductance and switch element to form Sofe Switch form, do not have unnecessary power capacity, its loss is low, and power density is high, can improve working life and the reliability of lighting device.
Coil paper fixing on lighting device lamp stand, can meet user's paper using demand at any time.
Accompanying drawing explanation
Fig. 1: the structural representation with the resonate converter of interphase reactor transformer of the present invention;
Fig. 2: the control impuls sequential chart of switch element S1, S2, S3, S4;
Fig. 3: schematic side view when the spill bar junction placing the high effect, illumination of coil paper of the present invention engages with described coil paper loop bar top;
Fig. 4: the schematic side view when coil paper loop bar top placing coil paper of the present invention is separated with described support bar;
Fig. 5: the schematic rear view after the top of support bar of the present invention is connected with lamp holder.
Wherein, 1-lamp holder, 21-support bar, 211-neck bar, 212-spill bar, 22-coil paper loop bar, 221-deck, 3-lamp socket, 4-power line, U
in-input voltage, T-tapped transformer, S1, S2, S3, S4-switch element, D1, D2, D3, D4-diode, L-inductance, N1-former limit winding centre tap the first half winding, N2-former limit winding centre tap the latter half winding, N3-vice-side winding centre tap the first half winding, N4-vice-side winding centre tap the latter half winding.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the Switching Power Supply in lighting device of the present invention comprises input voltage U
in, former limit and secondary all have tapped transformer T, switch element S1, S2, S3, S4, diode D1, D2, D3, D4, inductance L.Above-mentioned switch element is IGBT, and diode is fast recovery diode.
1 elaborate to the Switching Power Supply structure in high reliability lighting device of the present invention by reference to the accompanying drawings, concrete annexation is: input voltage U
inthe collector electrode of anode connecting valve element S1, S3, input voltage U
innegative terminal connect the negative electrode of diode D1, D2, the emitter of switch element S2, S4; The different name end of former limit winding centre tap the first half winding connects the anode of diode D1, the Same Name of Ends of former limit winding centre tap the latter half winding connects the anode of diode D2, the tie point of the Same Name of Ends of former limit winding centre tap the first half winding N1 and the different name end of former limit winding centre tap the latter half winding N2 and input voltage U
inanode be connected; The emitter of switch element S1 connects the anode of diode D3, the negative electrode of diode D3 connects the Same Name of Ends of vice-side winding centre tap the first half winding, the different name end of vice-side winding centre tap the first half winding N3 is connected with the Same Name of Ends of vice-side winding centre tap the latter half winding N4, and its tie point is connected with one end of inductance L, the different name end of vice-side winding centre tap the latter half winding is connected with the anode of diode D4, the collector electrode of the negative electrode connecting valve element S2 of diode D4; The emitter of switch element S3 is connected with the collector electrode of switch element S4, and the other end of its tie point and inductance L and load are connected.
As shown in Figure 2, each switch element S1 ~ S4 carries out alternate conduction and shutoff by controller according to the pulse sequence figure of Fig. 2; From circuit structure and above-mentioned pulse sequence figure, at S1, S2 blocking interval, energy in the winding of former limit feeds back to input power by diode D1, D2, and one of them conducting of controller control S3 or S4, resonance circuit is formed by the parasitic capacitance of inductance L and switching tube S1, S2, when the terminal voltage of S1, S2 is 0, conducting S1 or S2, realizes no-voltage open-minded; At S3, S4 blocking interval, one of them conducting of controller control S1 or S2, the resonance circuit formed by the parasitic capacitance of inductance L and switching tube S3, S4, conducting S3 or S4 when the terminal voltage of S3, S4 is 0, thus it is open-minded to realize no-voltage.
As Fig. 3, shown in Fig. 4 and Fig. 5, the high effect, illumination of coil paper can be placed, comprise lamp stand and the lamp holder 1 being arranged on described lamp stand top, described lamp stand comprises hinged coil paper loop bar 22 and support bar 21, described support bar 21 is vertically placed, comprise the neck bar 211 on top and be fixed on the spill bar 212 of described neck bar 211 bottom, described spill bar 212 bottom and described coil paper loop bar 22 lower hinge, and the recess of described spill bar 212 is towards described coil paper loop bar 22, described neck bar 211 engages with described coil paper loop bar 22 top with described spill bar 212 junction.
The deck 221 of opening surface to described lamp stand is provided with on described coil paper loop bar 22 top.
Described lamp stand bottom is fixed on the centre position of lamp socket 3, and the power line 4 of described lamp holder 1 is arranged in neck bar 211 and described spill bar 212, and stretches out bottom described spill bar 212 and stretch out.
When wanting coil paper is installed on lighting device, only need with the hinged place of spill bar 212 and described coil paper loop bar 22 for center of circle rotary lamp holder 1, coil paper loop bar 22 top is separated with described support bar 21 can be enclosed within coil paper loop bar 22 by coil paper, then lifted by lamp holder 1, the space between spill bar 212 and coil paper loop bar 22 can hold coil paper.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, the those of ordinary skill in described field is to be understood that: still can modify to the specific embodiment of the present invention or replace on an equal basis, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. a high effect, illumination, comprise lighting device base, Switching Power Supply, lamp stand and be arranged on the lamp holder on lamp stand top, it is characterized in that, described Switching Power Supply comprises the resonate converter with interphase reactor transformer.
2. lighting device as claimed in claim 1, it is characterized in that, described resonate converter comprises input voltage U
in, former limit and secondary all have tapped transformer T, switch element S1, S2, S3, S4, diode D1, D2, D3, D4, inductance L and controller, each switching tube has antiparallel parasitic diode and parasitic capacitance; Described input voltage U
inanode connect the collector electrode of described switch element S1, S3, input voltage U
innegative terminal connect the negative electrode of diode D1, D2, the emitter of switch element S2, S4; The different name end of former limit winding centre tap the first half winding connects the anode of diode D1, the Same Name of Ends of former limit winding centre tap the latter half winding connects the anode of diode D2, the tie point of the Same Name of Ends of former limit winding centre tap the first half winding N1 and the different name end of former limit winding centre tap the latter half winding N2 and input voltage U
inanode be connected; The emitter of switch element S1 connects the anode of diode D3, the negative electrode of diode D3 connects the Same Name of Ends of vice-side winding centre tap the first half winding, the different name end of vice-side winding centre tap the first half winding N3 is connected with the Same Name of Ends of vice-side winding centre tap the latter half winding N4, and its tie point is connected with one end of inductance L, the different name end of vice-side winding centre tap the latter half winding is connected with the anode of diode D4, the collector electrode of the negative electrode connecting valve element S2 of diode D4; The emitter of switch element S3 is connected with the collector electrode of switch element S4, and the other end of its tie point and inductance L and load are connected.
3. lighting device as claimed in claim 2, it is characterized in that, described controller control switch S1 and S2 alternate conduction, S3 and S4 alternate conduction, by the resonance circuit that the stray capacitance of inductance L and each switch element is formed, the each switch element of conducting when the terminal voltage of each switch element is 0, thus it is open-minded to realize no-voltage.
4. lighting device as claimed in claim 2, it is characterized in that, described switching tube is IGBT or MOSFET.
5. lighting device as claimed in claim 2, it is characterized in that, described input voltage is storage battery, fuel cell or photovoltaic cell.
6. lighting device as claimed in claim 2, it is characterized in that, described each diode is fast recovery diode or Schottky diode.
7. lighting device as claimed in claim 1, it is characterized in that, described lamp stand comprises hinged coil paper loop bar and support bar, described support bar is vertically placed, comprise the neck bar on top and be fixed on the spill bar of described neck bar bottom, described spill bar bottom and described coil paper loop bar lower hinge, and the recess of described spill bar is towards described coil paper loop bar, described neck bar engages with described coil paper loop bar top with described spill bar junction.
8. lighting device as claimed in claim 7, is characterized in that, be provided with the deck of opening surface to described lamp stand on described coil paper loop bar top.
9. lighting device as claimed in claim 7, it is characterized in that, described lamp stand bottom is fixed on the centre position of lamp socket, and the power line of described lamp holder is arranged in neck bar and described spill bar, and stretches out bottom described spill bar and stretch out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284650.8A CN104837282A (en) | 2014-12-12 | 2015-05-27 | High-efficiency lighting device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410857957 | 2014-12-12 | ||
| CN2014108579578 | 2014-12-12 | ||
| CN201510284650.8A CN104837282A (en) | 2014-12-12 | 2015-05-27 | High-efficiency lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104837282A true CN104837282A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510284650.8A Pending CN104837282A (en) | 2014-12-12 | 2015-05-27 | High-efficiency lighting device |
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| Country | Link |
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| CN (1) | CN104837282A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070216385A1 (en) * | 2006-03-14 | 2007-09-20 | Energy Conservation Technologies, Inc. | Switch mode power converter having multiple inductor windings equipped with snubber circuits |
| US20090219006A1 (en) * | 2008-02-28 | 2009-09-03 | Fuji Electric Device Technology Co., Ltd. | Electric power converter |
| CN201827756U (en) * | 2010-11-01 | 2011-05-11 | 湖州南达信息技术开发有限公司 | Desk lamp with paper drum |
| WO2014062569A2 (en) * | 2012-10-15 | 2014-04-24 | Maxout Renewables, Inc. | Isolated flyback converter |
-
2015
- 2015-05-27 CN CN201510284650.8A patent/CN104837282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070216385A1 (en) * | 2006-03-14 | 2007-09-20 | Energy Conservation Technologies, Inc. | Switch mode power converter having multiple inductor windings equipped with snubber circuits |
| US20090219006A1 (en) * | 2008-02-28 | 2009-09-03 | Fuji Electric Device Technology Co., Ltd. | Electric power converter |
| CN201827756U (en) * | 2010-11-01 | 2011-05-11 | 湖州南达信息技术开发有限公司 | Desk lamp with paper drum |
| WO2014062569A2 (en) * | 2012-10-15 | 2014-04-24 | Maxout Renewables, Inc. | Isolated flyback converter |
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| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20150812 |