CN207491246U - A kind of invariable power AC COB free drives move LED light source - Google Patents
A kind of invariable power AC COB free drives move LED light source Download PDFInfo
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- CN207491246U CN207491246U CN201721181773.XU CN201721181773U CN207491246U CN 207491246 U CN207491246 U CN 207491246U CN 201721181773 U CN201721181773 U CN 201721181773U CN 207491246 U CN207491246 U CN 207491246U
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- light source
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model is related to a kind of invariable power AC COB free drives to move LED light source, its LED light source ontology includes ceramic substrate, LED light source module and stent, it is characterized in that described print pad circuit on ceramic substrate, and LED light source module is welded on pad circuit behind the fixed position of printing welding circuit, stent card slot corresponding to LED light source module is fixed and forms light source.Since the utility model adopts piece good insulation preformance, the ceramic substrate of rapid heat dissipation；In circuit setting anti-surge circuit is composed in series with protective tube and varistor；Rectifier diode composition bridge rectifier provides direct current and stable light source is formed for LED light source module；And connect multiple LED light emitting diodes and patch invariable power LC chips, reach the LED light source of different capacity.In short, the LED light source that the utility model free drive moves, because its is simple in structure, the technique effect of generation is good, and manufacture cost is relatively low, convenient for industrialized production.
Description
Technical field
The utility model is related to a kind of LED light sources more particularly to a kind of invariable power AC COB free drives to move LED light source.
Background technology
LED (light emitting diode Light Emitting Diode) illuminations are after incandescent lamp, fluorescent lamp back lighting light source
Revolution again, it is efficient illumination product most with prospects to be recognized by the world as.The most of LED illumination manufacturer in the whole world at present
Production is all direct-current LED illuminating product, could normally be sent out this is because common LED chip must supply suitable direct current supply
Light (usual voltage value shines between 3.0-3.3V), and the High Level AC Voltage (100~230V of AC) used in daily life,
It must be converted to direct current (DC) by exchanging (AC), low pressure is converted to by high pressure, can just LED be driven to carry out normal work
Make.Meanwhile have 10%~30% energy loss when carrying out AC and DC and converting, due to the service life of the component of driver
Service life well below LED, and it is added significantly to the cost of LED illumination device.It is shone with directly driven by AC LED, it is whole
A LED information display system will greatly simplify.Modularization is the development trend of LED illumination with simplifying.
The immediate prior art is that AC COB (Chip on Board) free drive with constant current technology moves light source, it is one
Kind can connect the AC COB light sources of 220V high drives.Its characteristic is in normal voltage range, is controlled by constant current CRD
System, holding are input to LED current and are basically unchanged, and LED is avoided to burn out.Because LED C-V characteristics are very steep, normal voltage value is in 3.0-
It shines between 3.3V, more than its operating voltage, electric current can increase exponentially, and easily burn out LED.Such as forward voltage is changed to from 3.3V
3.6V, electric current just increase to 34mA from 20mA, increase as many as 70%.And the stability of electric main is very poor, is especially existed
With regard to worse, 220V+/- 25% is recurrent thing for rural area.Such as the patent No. 2010537984.9, entitled " AC LED
White light emitting device " employs long briliancy phosphor technologies, slows down stroboscopic.But light efficiency is avoided and has lowered problem.The patent No.
201110242079.5, entitled " AC drives light-emitting device " needs external resistance.The patent No. 201010235328.3, title
For " constant-current AC LED illumination circuit ", without surge protection.The patent No. 201210271905.3, a kind of title " exchange conducting
The not LED " of stroboscopic, without invariable power, effect is poor.Patent No. 201520240785.X, entitled " a kind of AC LED are without driving light
Source ", electric leakage can be generated by employing COB aluminium or copper base, this is fatal, it is impossible to be used.Patent No. 201510504473.X, title
For " a kind of high-power high aobvious finger white light LEDs integrated optical source module and its manufacturing method ", technique does not have invariable power.
Certainly, there are also many enterprises in LED lighting technology research and development, by driving constant flow element CRD and LED element group
The AC LED of integrated patch type are dressed up, main use or aluminum substrate.However, the pressure voltage of aluminum substrate is lower than ceramic wafer, make
With 220V high pressures, there are security risks, it is difficult to pass through CE Safety Approvals.
Invention content
Based on above-mentioned technological deficiency, research and develop a kind of invariable power AC COB free drives and move LED light source, its object is to solve
Certainly because that can generate electric leakage using COB aluminium or copper base, in high pressure 220V, there are the deficiencies of security risk, and electricity is not needed to so as to reach
Source drives, and service life length is without sudden strain of a muscle frequency, and very safe invariable power AC COB free drives move LED light source.
A kind of invariable power AC COB free drives of the utility model move LED light source, LED light source ontology include ceramic substrate,
LED light source module and stent, it is characterised in that it is described that pad circuit is printed on ceramic substrate, and welded on pad circuit
Stent card slot corresponding to LED light source module is fixed behind the fixed position of printing welding circuit and forms light by LED light source module
Source；
The LED module pad circuit that free drive moves is printed on the ceramic substrate, the pad circuit is provided with LED naked cores
Piece, invariable power IC chip, rectifier diode, protective tube and varistor fixation welding position；
The LED light source module is LED bare chips, invariable power IC chip, rectifier diode, protective tube and pressure-sensitive electricity
Resistance should sequentially be directly welded at the position corresponding to the pad circuit of ceramic substrate, and LED then is sealed with fluorescent powder silica gel
After bare chip, it is laid in invariable power IC chip with sealed silicone and forms light source module group.
LED bare chips are connected to the weldering of upside-down mounting soldering technology on ceramic wafer circuit, to reach by the LED light source module
Bonding wire is stablized.
Protective tube and varistor in the light source module group circuit are composed in series anti-surge circuit.
50/60HZ alternating currents are converted into 100/120HZ's by the multiple rectifier diode bridge rectifier in series
Direct current.
Invariable power IC chip in the light source module group circuit is kept constant constant in certain voltage range internal power.
The stent setting fixed screw holes, LED light source aperture, card slot and shrapnel.
Since the utility model employs good insulation preformance, the ceramic substrate of rapid heat dissipation；Protective tube is used in circuit setting
Anti-surge circuit is composed in series with varistor；Rectifier diode composition bridge rectifier provides direct current and supplies LED light source module structure
Into stable light source；And the multiple LED light emitting diodes of connection in series-parallel and invariable power LC chips in parallel, reach the LED light of different capacity
Source.In short, the LED light source that the utility model free drive moves, because its is simple in structure, the technique effect of generation is good, and manufacture cost is relatively low,
Convenient for industrialized production.
Description of the drawings
Fig. 1 moves LED light source structure diagram for a kind of invariable power AC COB free drives of the utility model；
Fig. 2 moves LED light source circuit principle schematic for a kind of invariable power AC COB free drives of the utility model；
Fig. 3 is the ceramic substrate structure schematic diagram that a kind of invariable power AC COB free drives of the utility model move LED light source；
Fig. 4 is the light source module group structure diagram that a kind of invariable power AC COB free drives of the utility model move LED light source；
Fig. 5-1, Fig. 5-2, Fig. 5-3 in Fig. 5 move LED light source stent for a kind of invariable power AC COB free drives of the utility model
Structure diagram.
Accompanying drawing number and title explanation：Ceramic substrate 1, pad circuit 101, box dam glue 102；Light source module group 2 covers silver wire road
201, LED bare chips 202, invariable power IC chip 203, rectifier diode 204, protective tube 205, varistor 206, fluorescent powder silicon
Glue 207, sealed silicone 208；Stent 3, light source module group 2, fixed screw holes 301, LED light source aperture 302, card slot 303, shrapnel 304；
Ontology 4.
Specific embodiment
Come below with specific embodiment, to the utility model, a kind of invariable power AC COB free drives move the further of LED light source
Description：
As shown in Fig. 1 to 5, a kind of invariable power AC COB free drives move LED light source, and LED light source ontology 4 includes ceramic substrate
1st, LED light source module 2 and stent 3 print pad circuit 101 on ceramic substrate 1, and weld LED light on pad circuit 101
3 card slot 303 of stent corresponding to LED light source module 2 is fixed and formed behind the fixed position of printing welding circuit by source module 2
Light source；Print the LED module pad circuit 101 that moves of free drive on ceramic substrate 1, pad circuit 101 be provided with LED bare chips 202,
Invariable power IC chip 203, rectifier diode 204, protective tube 205 and varistor 206 fixation welding position；The LED light
Source module 2 is should by LED bare chips 202, invariable power IC chip 203, rectifier diode 204, protective tube 205 and pressure-sensitive 206
The position corresponding to the pad circuit 101 of ceramic substrate 1 is sequentially directly welded at, is then sealed with fluorescent powder silica gel 207
After LED bare chips 202, it is laid in invariable power IC chip 203 with sealed silicone 208 and forms light source module group 2.LED light source mould
LED bare chips 202 are welded on upside-down mounting soldering technology on ceramic wafer circuit by group 2, to reach bonding wire stabilization.2 electricity of light source module group
Protective tube 205 and varistor 206 in road are composed in series anti-surge circuit.Multiple rectifier diodes 204 bridge in series
50/60HZ alternating currents are converted into the direct current of 100/120HZ by formula rectification.Invariable power IC chip in 2 circuit of light source module group
203 after parallel connection, is kept constant in certain voltage range internal power constant.Stent 3 sets fixed screw holes 301, LED light source
Hole 302, card slot 303 and shrapnel 304.
Fig. 2, circuit theory are that AC220V or 110V (50/60Hz) alternating currents pass through power input on ceramic substrate 1
L/N by 204 bridge rectifier of D1-D4 rectifier diodes, obtains the direct current of 100/120Hz；Passing through invariable power IC chip
203 current limlitings drive multiple LED bare chips 202 to shine.Silica gel 207 of the embedding with fluorescent powder makes blue-ray LED send out white light.Patch
Piece protective tube 205 is in parallel with power input L/N after connecting with patch varistors 206.The power of light source can be more by parallel connection
A invariable power IC chip 203 obtains.
Fig. 3, the ceramic substrate 1 in the utility model are aluminum oxide ceramic substrate, good heat dissipation (AL203 ceramics
Coefficient 24W/mK, aluminum substrate 6W/mK), (AL203 ceramics pressure voltages are 3500-4000V to high pressure, and aluminum substrate 800-
1500V, the ceramic wafer of identical size, performance are significantly better than aluminum substrate), it is absolutely safe using 220V, easily recognized by CE safety
Card.And the main surface printing pad circuit 101 of ceramic substrate 1, wherein, at protective tube 205 and 206 position of patch varistors
Power input L/N is set；In each element of welding LED light source module, first have to be fenced up with box dam glue 102, then press again
The fixed position sequence of each element is welded.
2 dotted portion of light source module group in Fig. 4 for upside-down mounting soldering and welds 202 structure of LED bare chips, every group of LED naked core
202 face-down bonding of piece, using flip LED bare chip 202, stablizes performance bonding wire on silver wire road 201 is covered.Reduce LED welderings
The quantity of line, welding line number are reduced, and improve production yield and efficiency；LED bare chips 202 are exactly two pole of naked core rectification in fact
50/60Hz alternating currents, by bridge rectifier, are converted into the direct current of 100/120Hz by pipe, reversed pressure resistance 1000V, are sent out for LED
Light.Invariable power IC chip 203 in 2 circuit of light source module group is kept constant not after parallel connection in certain voltage range internal power
Become.Varistor is connected with patch protective tube, is connected in parallel on power input, can be required by CE Safety Approvals.Varistor is
Using metal oxide patch varistors Metal Oxide Varistors, the surge impact of 2000V can be effectively prevent.
Fig. 5, by Fig. 5-1 to Fig. 5-3, wherein, 5-1 is LED light source encapsulation state structure, and stent 3 withholds LED light source module
2；5-2 is 3 structure Facad structure figure of stent, and stent 3 sets fixed screw holes 301 and light source hole 302；5-3 is carried on the back for 3 structure of stent
Face structure chart, stent setting LED light source aperture 302,2 card slot 303 of LED light source module and the L/N end in contact bullets for drawing power end
Piece 304.
In LED light source technique is implemented, it will usually pad circuit is printed on ceramic substrate, then pastes tin silver paste
Or be printed on ceramic substrate, reflow soldering then is being put by high temperature by LED Bare chip solderings to ceramic substrate, then
By be attached with fluorescent powder silica gel be fixed on LED chip top formed level Hermetic Package.Since the utility model employs insulating properties
It can good, the ceramic substrate of rapid heat dissipation；In circuit setting anti-surge circuit is composed in series with protective tube and varistor；Rectification two
Pole pipe composition bridge rectifier provides direct current and stable light source is formed for LED light source module；And the multiple LED light-emitting diodes of connection in series-parallel
Pipe and invariable power LC chips in parallel reach the LED light source of different capacity.In short, the LED light source that the utility model free drive moves, because
Its is simple in structure, and the technique effect of generation is good, and manufacture cost is relatively low, convenient for industrialized production.
Therefore, all category the technical solution of the utility model and technical concept make other respectively without creative mental labour
The corresponding conversion scheme of kind, belongs to the range that the utility model is protected.
Claims (6)
1. a kind of invariable power AC COB free drives move LED light source, LED light source ontology includes ceramic substrate, LED light source module and branch
Frame, it is characterised in that pad circuit is printed on ceramic substrate, and welds LED light source module on pad circuit and is welded in printing
Behind the fixed position of circuit, stent card slot corresponding to LED light source module is fixed and forms light source；
The LED module pad circuit that free drive moves is printed on the ceramic substrate, the pad circuit is provided with LED bare chips, perseverance
Power IC dies, rectifier diode, protective tube and varistor fixation welding position；
The LED light source module is should by LED bare chips, invariable power IC chip, rectifier diode, protective tube and varistor
The position corresponding to the pad circuit of ceramic substrate is sequentially directly welded at, LED naked cores then are sealed with fluorescent powder silica gel
After piece, it is laid in invariable power IC chip with sealed silicone and forms light source module group.
2. a kind of invariable power AC COB free drives as described in claim 1 move LED light source, it is characterised in that the LED light source mould
LED bare chips are connected to the weldering of upside-down mounting soldering technology on ceramic wafer circuit by group, to reach bonding wire stabilization.
3. a kind of invariable power AC COB free drives as claimed in claim 2 move LED light source, it is characterised in that the light source module group electricity
Protective tube and varistor in road are composed in series anti-surge circuit.
4. a kind of invariable power AC COB free drives as claimed in claim 2 move LED light source, it is characterised in that multiple rectifier diodes
50/60Hz alternating currents are converted into the direct current of 100/120Hz by bridge rectifier in series.
5. a kind of invariable power AC COB free drives as described in claim 1 move LED light source, it is characterised in that the light source module group electricity
Invariable power IC chip in road is kept constant constant in certain voltage range internal power.
6. a kind of invariable power AC COB free drives as described in claim 1 move LED light source, it is characterised in that the stent setting is solid
Determine screw hole, LED light source aperture, card slot and shrapnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721181773.XU CN207491246U (en) | 2017-09-07 | 2017-09-07 | A kind of invariable power AC COB free drives move LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721181773.XU CN207491246U (en) | 2017-09-07 | 2017-09-07 | A kind of invariable power AC COB free drives move LED light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207491246U true CN207491246U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721181773.XU Active CN207491246U (en) | 2017-09-07 | 2017-09-07 | A kind of invariable power AC COB free drives move LED light source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442234A (en) * | 2018-11-10 | 2019-03-08 | 深圳市创佳达光电有限公司 | A kind of the AC COB light source mould group and its packaging method of three-phase alternating current driving |
| CN110671616A (en) * | 2019-08-29 | 2020-01-10 | 佛山市中昊光电科技有限公司 | Constant voltage drive COB light source |
-
2017
- 2017-09-07 CN CN201721181773.XU patent/CN207491246U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442234A (en) * | 2018-11-10 | 2019-03-08 | 深圳市创佳达光电有限公司 | A kind of the AC COB light source mould group and its packaging method of three-phase alternating current driving |
| CN110671616A (en) * | 2019-08-29 | 2020-01-10 | 佛山市中昊光电科技有限公司 | Constant voltage drive COB light source |
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