CN203851311U - Led bulb - Google Patents
Led bulb Download PDFInfo
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- CN203851311U CN203851311U CN201320351825.9U CN201320351825U CN203851311U CN 203851311 U CN203851311 U CN 203851311U CN 201320351825 U CN201320351825 U CN 201320351825U CN 203851311 U CN203851311 U CN 203851311U
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Abstract
The utility model discloses an Led bulb, comprising the following modules of an input protection module A1, a rectification filtering module A2, a high frequency electronic transformer module A3, a detection control module A4 and a constant-current voltage-stabilization output module A5, wherein an output terminal of the input protection module A1 is connected with an input terminal of the rectification filtering module A2; an output terminal of the rectification filtering module A2 is respectively connected with an input terminal of the high frequency electronic transformer module A3 and a pin STP of the detection control module A4; the high frequency electronic transformer module A3 is connected with the detection control module A4 to form a detection control loop; a secondary winding S of the high frequency electronic transformer module A3, a correlation capacitor, a diode, and a resistor and the like constitute the constant-current voltage-stabilization output module A5. The led bulb provided by the utility model has the advantages of simple structure, high power factor, high efficiency, good security and low cost, and is convenient to install and the like.
Description
Technical field
The utility model relates to a kind of LED lighting device, is specially a kind of LED bulb lamp.
Background technology
The light fixture major part of current domestic light application is incandescent lamp, and incandescent lamp exists the shortcomings such as luminous efficiency is low, useful life is shorter, energy consumption is large.Along with country is for the attention of environmental protection and energy-saving and emission-reduction, incandescent lamp is also because above-mentioned shortcoming will be stopped production.LED light source has that the life-span is long, energy consumption is low, luminous efficiency advantages of higher, has obtained application at lighting field.LED light source requires its drive circuit to have stable constant current output, the unstable Acceptable life that will reduce LED light source of drive current.
Because early stage LED light source price is relatively costly, its application is mainly in the outdoor lightings such as street lamp, garden lamp, Landscape Lamp, in room lighting, is not promoted.Along with the continuous innovation of LED light source technology, the cost of LED light source declines, and making LED light source be applied in room lighting becomes possibility.5W LED bulb lamp, as a kind of indoor illumination light fitting, can be widely used in the places such as market, school, office building, family.5W LED bulb lamp is in the market not very ripe, exists the problems such as, stability low such as efficiency and poor reliability.
Summary of the invention
Technical problem to be solved in the utility model is to solve the problem that efficiency general in existing bulb lamp is low, reliability is low.The utility model provides a kind of good illumination effect, energy-conservation, the 5W LED bulb lamp that lamp life is long.
The technical solution adopted in the utility model is:
Described LED bulb lamp comprises following module: input protection modules A 1, rectification filtering module A2, high-frequency electronic transformer modules A 3, detection control module A4, constant-current voltage-stabilizing output module A5.
Described input protection modules A 1 will effectively reduce the impacts such as surge voltage that civil power brings to driving power circuit, overcurrent, electromagnetic interference, and humorous wave interference and the electromagnetic interference that may cause driving power circuit isolate, and forms bidirectional protective.
After described rectification filtering module A2 is positioned at input protection modules A 1, will convert the needed metastable direct voltage of driving power circuit to through the civil power of input protection modules A 1.
Described high-frequency electronic transformer modules A 3 is the control through power switch component by the stable DC electricity after rectifying and wave-filtering, forms pulsation alternating current and carry out transformation; High-frequency electronic transformer modules A 3 structures are single-ended reverse exciting high-frequency electronic transformer, and this high-frequency electronic transformer has three windings: main winding P, auxiliary winding A, secondary winding S.
The employing MT7930 control chip of described detection control module A4, this detection control circuit can detect the peak current of main winding P and the phase-tracking detection of electric current and busbar voltage be realized to the correction of power factor; The voltage and current signal parameter that detects in real time output circuit, is input to control chip respective pin by the detection signal of collection, and according to the switch of the related algorithm power ratio control of integrated chip, changes duty ratio, thereby realize constant-current voltage-stabilizing control.
Described constant-current voltage-stabilizing output module A5 is by the output voltage process diode halfwave rectifier of the secondary winding S of high-frequency electronic transformer modules A 3, then through thering is the electric capacity of filtering and energy storage effect, thereby realize constant-current voltage-stabilizing output.
compared with prior art, the beneficial effects of the utility model are:
Described 5W LED bulb lamp, can effectively solve the many problems of incandescent lamp, and has the advantages such as efficiency is high, power factor is high, simple in structure, price is low, safe and reliable, is convenient to penetration and promotion.
brief description of the drawings:
Fig. 1 is the general frame of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is and the matching used high-power LED light source layout circuit of the utility model figure;
Fig. 4 is and the matching used LED bulb lamp of the utility model lamp body structure figure;
Fig. 5 is installation generalized section of the present utility model.
embodiment:
By reference to the accompanying drawings the utility model is described in further detail:
The general frame of the present utility model, comprises as shown in Figure 1: input protection modules A 1, rectification filtering module A2, high-frequency electronic transformer modules A 3, detection control module A4, constant-current voltage-stabilizing output module A5.
Being connected to of each part mentioned above:
Civil power is the input of input protection modules A 1, and the output of input protection modules A 1 is connected with the input of rectification filtering module A2.
The output of rectification filtering module A2 is connected with input, the detection control module A4 pin STP of high-frequency electronic transformer A3 respectively.
High-frequency electronic transformer modules A 3 is connected to form detection control loop with detection control module A4.
The secondary winding S of high-frequency electronic transformer modules A 3 and relevant capacitor, diode, resistance etc. form constant-current voltage-stabilizing output module A5.
Circuit theory diagrams of the present utility model, as shown in Figure 2, the part of described each module is:
Input protection modules A 1 comprises: the first fuse FUSE, Transient Voltage Suppressor TVS, the 7th capacitor C 7, the first common mode inductance L1, the second common mode inductance L2.
Being connected to of each part mentioned above: the first fuse FUSE is connected on the phase line L of civil power input, Transient Voltage Suppressor TVS and the 7th capacitor C 7 are connected across phase line L and the neutral line N two ends of civil power input, and common mode inductance L1 and common mode inductance L2 are connected on respectively on two inputs through the first fuse and transient suppressor TVS, the 7th capacitor C 7.
Rectification filtering module A2 comprises: bridge heap rectifier MB6S, the 6th capacitor C 6.
Being connected to of each part mentioned above: receive respectively two inputs of bridge heap rectifier MB6S through the civil power of input protection modules A 1, cathode output end and the cathode output end of bridge heap rectifier MB6S are input to respectively the 6th capacitor C 6 two ends.
High-frequency electronic transformer modules A 3 comprises: high-frequency electronic transformer main winding P, high-frequency electronic transformer secondary winding S, the auxiliary winding A of high-frequency electronic transformer, the first capacitor C 1, the second resistance R 2, the first fast recovery diode VD1.
Being connected to of each part mentioned above: main winding P and auxiliary winding A are in a side of high-frequency electronic transformer, and secondary winding S is in a side of high-frequency electronic transformer; After the first capacitor C 1 is in parallel with the second resistance R 2, an end is connected on through being connected with main winding P in the positive electrode bus of rectification filtering module A2, the other end after the first capacitor C 1 and the second resistance R 2 parallel connections is connected on the negative pole of the first fast recovery diode VD1, and the positive pole of the first fast recovery diode VD1 is connected on the other end of main winding P.
Detecting control module A4 comprises: the first chip MT7930, the first resistance R 1, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the second capacitor C 2, the 3rd capacitor C 3, the second fast recovery diode VD2, the first power switch MOSFET1.
Being connected to of each part mentioned above: the first resistance R 1 is connected and carries out soft start power supply with the STP pin of the first control chip MT7930; The pin DRV of the first control chip MT7930 is connected with one end of the 5th resistance R 5, and the other end of the 5th resistance R 5 is connected with the gate pole G of the first power switch MOSFET1; The pin DIM of the first control chip and pin GND are all connected with the ground terminal of the auxiliary winding A of high-frequency electronic transformer modules A 3; The 3rd resistance R 3 is connected with the auxiliary winding A positive terminal of high-frequency electronic transformer modules A 3, the 3rd resistance R 3 is connected with the 4th resistance R 4, the 4th resistance R 4 and the second capacitor C 2 are also connected in the negative pole end of assisting winding A, and the other end of the 4th resistance R 4 and the second capacitor C 2 is connected with the DSEN pin of the first control chip MT7930; The positive pole of the second fast recovery diode VD2 is connected with the positive terminal of auxiliary winding A, and the negative pole of the second fast recovery diode VD2 is connected with VDD pin, the STP pin of the first control chip MT7930, forms current supply circuit; The drain D of the first power switch MOSFET1 is connected with the positive pole of the first fast recovery diode VD1, the source S of the first power switch MOSFET1 is connected with the 6th resistance R 1, the first control chip MT7930 pin CS respectively, the other end of the 6th resistance R 1 is connected to the ground, and forms current detection circuit.
Constant-current voltage-stabilizing output module A5 comprises: the 4th capacitor C 4, the 5th capacitor C 5, the 7th resistance R 7, the 3rd fast recovery diode VD3.
Being connected to of each part mentioned above: the positive terminal of the secondary winding of high-frequency electronic transformer modules A 3 is connected with the positive pole of the 3rd fast recovery diode VD3, the negative pole of the 3rd fast recovery diode VD3 is connected with the positive pole of the 4th capacitor C 4, the positive pole of the 5th capacitor C 5, one end of the 7th resistance R 7, and this end is as the cathode output end of driving power; The negative pole of the negative pole of the 4th capacitor C 4, the negative pole of the 5th capacitor C 5, the other end of the 7th resistance R 7 and the secondary winding S of high-frequency electronic transformer modules A 3 is connected, and this end is as the cathode output end of driving power.
The matching used high-power LED light source layout circuit of the utility model figure, as shown in Figure 3:
Described high-power LED light source layout circuit figure comprises following components: anodal welding point B 1, negative pole welding point B 2, circular metal lamp base B3, large-power LED light bead B4.
Being connected to of each part mentioned above: 5 large-power LED light beads, with the angle of 72 degree, are connected successively and are evenly distributed on circular metal lamp base upper surface, and head and the tail connect respectively two outputs of driving power, form anodal welding point B 1 and negative pole welding point B 2.
The matching used 5W LED of the utility model bulb lamp lamp body structure, as shown in Figure 4:
Described LED bulb lamp lamp body enclosed mass following components: circular metal lamp base C1, the plastic lamp housing C2, heat dissipation metal lamp housing C3, threaded metal joint C4, the light fixture end fitting C5 that are furnished with 5 LED lamp pearls.
Being connected to of each part mentioned above: the circular metal lamp base C1 that is furnished with 5 LED lamp pearls is screwed in the top of heat dissipation metal lamp housing C3, and is encapsulated and make light even with plastic lamp housing C2.Two outputs of driving power circuit plate are welded in the both sides, circular metal lamp base C1 center that are furnished with 5 LED lamp pearls.Two inputs of driving power circuit are connected to respectively threaded metal joint C4 and light fixture end fitting C5, threaded metal joint C4 is fixed on the bottom of heat dissipation metal lamp housing C3 by screw thread, between threaded metal joint C4 and light fixture end fitting C5, there is plastic insulating layer, in this figure, do not draw.
Installation generalized section of the present utility model, as shown in Figure 5:
Described installation profile comprises following components: plastic lamp housing section D1, circular metal lamp base section D2,5W LED bulb lamp constant-current driving power supply circuit board D3, LED bulb lamp installing space D4, threaded metal joint section D5, light fixture end fitting section D6.
Being connected to of each part mentioned above: 5W LED bulb lamp driving power circuit plate D3 at right angle setting is in the specific installing space D4 in LED bulb lamp chamber, there are two outputs the top of 5W LED bulb lamp driving power circuit plate, be respectively anodal output and negative pole output, the phase of solder joint welding consistent with two polarity of circular metal lamp base C1 respectively of these two outputs, forms circular metal lamp base profile D2; There are two inputs the below of 5W LED driving power circuit plate, be respectively L input and N input, usually L input be connected with light fixture end fitting C5, form and connect profile D6, N input is connected with threaded metal joint C4, forms and connect section D5.
Claims (2)
1. a LED bulb lamp, comprises input protection modules A 1, rectification filtering module A2, high-frequency electronic transformer modules A 3, detects control module A4, constant-current voltage-stabilizing output module A5;
Described input protection modules A 1 will effectively reduce the impacts such as surge voltage that civil power brings to driving power circuit, overcurrent, electromagnetic interference, and humorous wave interference and the electromagnetic interference that may cause driving power circuit isolate, and forms bidirectional protective;
After described rectification filtering module A2 is positioned at input protection modules A 1, will convert the needed metastable direct voltage of driving power circuit to through the civil power of input protection modules A 1;
Described high-frequency electronic transformer modules A 3 is the control through power switch component by the stable DC electricity after rectifying and wave-filtering, forms pulsation alternating current and carry out transformation; High-frequency electronic transformer modules A 3 structures are single-ended reverse exciting high-frequency electronic transformer, and this high-frequency electronic transformer has three windings: main winding P, auxiliary winding A, secondary winding S;
The employing MT7930 control chip of described detection control module A4, this detection control circuit can detect the peak current of main winding P and the phase-tracking detection of electric current and busbar voltage be realized to the correction of power factor; The voltage and current signal parameter that detects in real time output circuit, is input to control chip respective pin by the detection signal of collection, and according to the switch of the related algorithm power ratio control of integrated chip, changes duty ratio, thereby realize constant-current voltage-stabilizing control;
Described constant-current voltage-stabilizing output module A5 is by the output voltage process diode halfwave rectifier of the secondary winding S of high-frequency electronic transformer modules A 3, then through thering is the electric capacity of filtering and energy storage effect, thereby realize constant-current voltage-stabilizing output.
2. a kind of LED bulb lamp according to claim 1, it is characterized in that high-frequency electronic transformer modules A 3 is the side that three winding single-ended reverse exciting structures and main winding P and auxiliary winding A are distributed in high-frequency electronic transformer modules A 3, secondary winding S is distributed in the opposite side of high-frequency electronic transformer modules A 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320351825.9U CN203851311U (en) | 2013-06-19 | 2013-06-19 | Led bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320351825.9U CN203851311U (en) | 2013-06-19 | 2013-06-19 | Led bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851311U true CN203851311U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320351825.9U Expired - Fee Related CN203851311U (en) | 2013-06-19 | 2013-06-19 | Led bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142317A (en) * | 2015-10-15 | 2015-12-09 | 苏州汉克山姆照明科技有限公司 | High-power LED lamp driving circuit |
-
2013
- 2013-06-19 CN CN201320351825.9U patent/CN203851311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142317A (en) * | 2015-10-15 | 2015-12-09 | 苏州汉克山姆照明科技有限公司 | High-power LED lamp driving circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140924 Termination date: 20180619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |