CN205754943U - A kind of LED light source with constant-current characteristics - Google Patents
A kind of LED light source with constant-current characteristics Download PDFInfo
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- CN205754943U CN205754943U CN201620421516.8U CN201620421516U CN205754943U CN 205754943 U CN205754943 U CN 205754943U CN 201620421516 U CN201620421516 U CN 201620421516U CN 205754943 U CN205754943 U CN 205754943U
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- led
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Abstract
A kind of LED light source with constant-current characteristics, it relates to a kind of light source；It comprises bridge rectifier, constant-current LED multiple tube, multiple LED element group and substrate；It is characterized in that: constant-current LED multiple tube and multiple LED element group are surface patch element, and be welded on substrate by surface mount technology, AC power supplies contact it is provided with on substrate, the input of bridge rectifier connects alternating current power supply by AC power supplies contact, and the input that the outfan of bridge rectifier is connected with constant-current LED multiple tube and LED element group respectively connects；Its number of elements is few, produces simple, low cost, and reliability is high, and illumination effect is uniform, it is possible to meet the imperceptible stroboscopic of human eye.
Description
Technical field
This utility model relates to a kind of light source, is specifically related to a kind of LED light source with constant-current characteristics.
Background technology
Because the LED chip in common LED light source must supply suitable unidirectional current ability normal luminous,
Generally voltage value is between 3.0-3.3V, and voltage is higher than 3.3V, and electric current can sharply increase, cause
LED burns out.
So the alternating current AC used in daily life cannot directly power for LED light source, it is necessary to the most logical
Cross additional power control part and alternating current is converted to unidirectional current DC, and be converted to low pressure by high pressure,
LED chip can be driven normally to work；So volume is relatively big, relatively costly, assembles trouble, serious shadow
Ring LED illumination popularizing in domestic environments.
Utility model content
The purpose of this utility model is the defect for prior art and deficiency, it is provided that a kind of simple reliable
AC LED light source, can by exchange 110V or 220V drive light.
For achieving the above object, the technical solution adopted in the utility model is: it comprise bridge rectifier,
Constant-current LED multiple tube, multiple LED element group and substrate；Constant-current LED multiple tube and multiple LED element
Group is surface patch element, and is welded on substrate by surface mount technology, and substrate is provided with AC
Power contact, the input of bridge rectifier connects alternating current power supply, bridge rectifier by AC power supplies contact
The input that the outfan of circuit is connected with constant-current LED multiple tube and LED element group respectively connects.
Further, described constant-current LED multiple tube includes CRD chip and LED chip, CRD chip
The composite component together with gold thread supersonic bonding (Wire Bonder) Series Package is passed through with LED chip,
There is constant current and the characteristics of luminescence.
Further, described substrate is aluminum oxide ceramic substrate and aluminium base.
Further, described substrate replacement is aluminium base.
Further, the light emitting diode of described bridge rectifier, constant-current LED multiple tube and LED
Chip is bare chip, and is arranged on support by routing bonding techniques.
After using said structure, the beneficial effects of the utility model are: its number of elements is few, produce simple,
Low cost, reliability is high, and illumination effect is uniform, it is possible to meet the imperceptible stroboscopic of human eye.
After using said structure, operation principle of the present utility model is: a kind of LED with constant-current characteristics
Light source, when specifically used, the alternating current of 50-60Hz is on substrate by the AC power supplies contact on substrate
Circuit power, alternating current obtains unidirectional current after bridge rectifier rectification, and constant-current LED multiple tube enters
After one step is to unidirectional current current limliting, drive LED chip luminous.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model constant-current LED composite pipe structure schematic diagram；
Fig. 3 is utility model works schematic diagram.
1, bridge rectifier；2, constant-current LED multiple tube；3, LED element group；4, substrate；
5, CRD chip；6, LED chip；7, gold thread；8, AC power supplies contact；9, support.
Detailed description of the invention
Embodiment
Referring to shown in Fig. 1-Fig. 3, the present embodiment the technical scheme is that a kind of have constant-current characteristics
LED light source, it includes bridge rectifier 1, constant-current LED multiple tube 2, multiple LED element group 3 and
Substrate 4, substrate 4 is provided with AC power supplies contact 8, and the input of bridge rectifier 1 is by AC electricity
Contact, source 8 connects alternating current power supply；The outfan of bridge rectifier 1 and constant-current LED multiple tube 2 and LED
The input electrical connection of element group 3 series connection；Substrate 4 is aluminum oxide ceramic substrate；Constitute bridge-type whole
The diode of current circuit 1, constant-current LED multiple tube 2 and LED chip 3 are bare chip, and pass through WB
(Wire Bonding routing bonding) technology is arranged on support 9, this full chip assembly LED light source bag
Include multiple LED element group 3, when actual fabrication, by changing the number of constant-current LED multiple tube 2 in parallel,
The LED element group 3 that can realize driving number different is luminous, thus changes this full integrated chip AC LED
The luminous intensity of light source and power.
Being provided with AC power supplies contact 8L and N on described substrate 4, electric current is through bridge rectifier 1
AC 50Hz alternating current is converted to the pulse direct current of 100Hz, improves LED service efficiency, reduce
Stroboscopic.
Described constant-current LED multiple tube 2 is connected with LED element group 3, and constant-current LED multiple tube 2 is main
Being current-limiting protection effect, constant-current LED multiple tube 2 can keep constant-current characteristics at 3-100V, absorbs height
Voltage segment, keeps the basicly stable of electric current, this including components therein LED chip 6, and circuit can be made to design more
For simply, illumination effect is more uniform.
Described multiple constant-current LED multiple tube 2 modes in parallel, can bigger electric current to LED element
Group 3, LED element group 3 can form different powerful luminous body according to line voltage string and combine；
Such as 220V: series LED quantity 70-80 does not waits (mono-voltage 2.9-3.0V of LED).110V: series connection
LED quantity 35-40.
Described substrate 4 is aluminum oxide ceramic substrate and aluminium base.
Described substrate 4 can be replaced aluminum oxide ceramic substrate.
The above, be merely to illustrate the technical solution of the utility model and unrestricted, the common skill in this area
Other amendment or equivalent that the technical solution of the utility model is made by art personnel, without departing from
The spirit and scope of technical solutions of the utility model, all should contain at right of the present utility model
In the middle of.
Claims (5)
1. having a LED light source for constant-current characteristics, it is multiple that it comprises bridge rectifier, constant-current LED
Close pipe, multiple LED element group and substrate；It is characterized in that: constant-current LED multiple tube and multiple LED unit
Part group is surface patch element, and is welded on substrate by surface mount technology, and substrate is provided with
AC power supplies contact, the input of bridge rectifier connects alternating current power supply by AC power supplies contact, and bridge-type is whole
The input that the outfan of current circuit is connected with constant-current LED multiple tube and LED element group respectively connects.
A kind of LED light source with constant-current characteristics, it is characterised in that:
Described constant-current LED multiple tube includes CRD chip and LED chip, and CRD chip and LED chip are led to
Cross gold thread to connect.
A kind of LED light source with constant-current characteristics, it is characterised in that:
Described substrate is aluminum oxide ceramic substrate and aluminium base.
A kind of LED light source with constant-current characteristics, it is characterised in that:
Described substrate replacement is aluminium base.
A kind of LED light source with constant-current characteristics, it is characterised in that:
The light emitting diode of described bridge rectifier, constant-current LED multiple tube and LED chip are bare chip,
And be arranged on support by routing bonding techniques.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421516.8U CN205754943U (en) | 2016-05-11 | 2016-05-11 | A kind of LED light source with constant-current characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421516.8U CN205754943U (en) | 2016-05-11 | 2016-05-11 | A kind of LED light source with constant-current characteristics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205754943U true CN205754943U (en) | 2016-11-30 |
Family
ID=57368944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620421516.8U Expired - Fee Related CN205754943U (en) | 2016-05-11 | 2016-05-11 | A kind of LED light source with constant-current characteristics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205754943U (en) |
-
2016
- 2016-05-11 CN CN201620421516.8U patent/CN205754943U/en not_active Expired - Fee Related
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Legal Events
| 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: 20161130 Termination date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |