CN102628553A

CN102628553A - Internal radiation columnar light-emitting diode (LED) light source

Info

Publication number: CN102628553A
Application number: CN201210068028XA
Authority: CN
Inventors: 高鞠; 苟锁利; 王媛
Original assignee: SUZHOU JINGPIN OPTICAL-ELECTRONICAL TECHNOLOGY Co Ltd
Current assignee: SUZHOU JINGPIN OPTICAL-ELECTRONICAL TECHNOLOGY Co Ltd
Priority date: 2012-03-15
Filing date: 2012-03-15
Publication date: 2012-08-08

Abstract

The invention discloses an internal radiation columnar light-emitting diode (LED) light source. The internal radiation columnar LED light source is formed by inwards curling and fixing a plane flake type LED light source, wherein the plane flake type LED light source comprises a plane flake type substrate and LED lamp beads; an LED binding region is formed on the plane flake type substrate; and the LED lamp beads are arranged on the LED binding region. The internal radiation columnar LED light source has a simple structure and excellent heat-dissipating performance and can meet the requirement of wrapping type omnidirectional light receiving.

Description

Radiation column led light source in a kind of

Technical field

The present invention relates to a kind of led light source, relate in particular to a kind of interior radiation column led light source.

Background technology

Because light emitting diode is a kind of high efficiency cold light light-emitting component that converts electrical energy into luminous energy, and have advantages such as power consumption is low, the life-span is long, become trend so in lighting field, use the LED lamp to throw light on.

The power of the LED lamp that has in the use is bigger; The life-span of LED wick and the operating temperature of node have closer getting in touch; At present the LED lamp has only about 50% electric energy to convert luminous energy in the course of the work; Remaining electric energy nearly all changes into heat energy, the temperature of LED lamp is raise, and 10 degrees centigrade of its reliabilities of the every increase of temperature will reduce half.In high-powered LED lamp, heat radiation is a big problem especially.Bad meeting directly causes the quick aging of LED wick if dispel the heat, and stability reduces, bad can the generation life-span that serious light decay influences lamp of dispelling the heat simultaneously.

Summary of the invention

Goal of the invention: in order to overcome the deficiency that exists in the prior art, the present invention provides a kind of interior radiation column led light source, its perfect heat-dissipating, and can be widely used in medical light source industry.

Technical scheme: for solving the problems of the technologies described above, the technical scheme that the present invention adopts is:

Radiation column led light source in a kind of; Form to crimped and fixing back by flat, thin chip led light source; Said flat, thin chip led light source comprises flat, thin chip substrate and LED lamp pearl, is designed with the LED land on the said flat, thin chip substrate, and pearl is arranged on the LED land LED lamp.

Owing to used flat, thin chip led light source, thereby can be easy to be curled into the shape that needs, be rule or irregular star-like, polygon, oval or circular such as cross section, and do not damage the circuit connection of LED lamp pearl; Its in use because the printing opacity place is open, thereby can efficiently radiates heat; Radiation column led light source can adapt to the specific (special) requirements of medical light source in this, such as the interior illuminating source (water purification) of medical industry needs.

Said LED lamp pearl preferably adopts the mode of Reflow Soldering, laser weld or energising heating to be fixed on the LED land; The preferred mode that adopts the Reflow Soldering of some glue, the welding process of this kind mode is not easy to destroy the various performances of LED lamp pearl; In order to guarantee that this light source forms the purpose of interior radiation, in fixed L ED lamp pearl, need guarantee the curl direction of the direction of its light radiation towards flat, thin chip led light source, promptly after the typing of curling, the radiation direction of LED lamp pearl is towards column-shaped internal section.

Said flat, thin chip substrate can be transparent polyester class film or the polyimide film that is covered with conductive pattern; Said conductive pattern can use materials such as copper, silver, gold; This kind flat, thin chip substrate can be referred to as the soft base plate substrate; Owing to adopt transparent membrane, thereby can transparent two sides, improving its light transmission efficiency, the printing opacity angular range is big.

Said flat, thin chip substrate can also be merely the Copper Foil that forms conductive pattern, and this kind flat, thin chip substrate can be referred to as not have the substrate substrate, because no other materials, thereby its hollow out place light projector fully, has still realized the purpose of transparent two sides.

The Copper Foil of above-mentioned formation conductive pattern can be made through over etching, laser engraving or punch process by copper foil material.

Surface printing solder mask at the Copper Foil that forms conductive pattern can make accurate in size LED land.

The shape of the Copper Foil of the formation conductive pattern of the conductive pattern of soft base plate substrate and no substrate substrate can adopt computer simulation method to come optimal design, to improve optics, electricity and the thermal property of whole interior radiation column led light source.

The selection of said LED lamp pearl need be considered the instructions for use of whole interior radiation column led light source, satisfies specific optical index.

Most preferred, the interior radiation column led light source in this case is an axially symmetric structure, is circular structure such as cross section; The cylindrical light source of this special axial symmetry, especially still in irradiation structure, all very seldom arrive in a lot of fields, because of the sheet type led light source is adopted in this case, thereby more or less freely obtaining, be a very big breakthrough.

Radiation column led light source can adopt the mode of welding, sewing or anchor clamps to carry out secure bond after crimped in being somebody's turn to do.

Preferably, circuit input end of radiation column led light source is arranged on its outside in this, avoids circuit input end and line related that the photosensitiveness that goes out of this light source is impacted.

Beneficial effect: radiation column led light source in provided by the invention, simple in structure, heat dispersion is good, can meet the needs of the comprehensive requirement that receives light of packaging type.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the flat, thin chip led light source structural representation of soft base plate substrate;

Fig. 3 is the flat, thin chip led light source structural representation of no substrate substrate.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is done explanation further.

Be illustrated in figure 1 as a kind of interior radiation column led light source; It is formed to crimped and through the fixing back of the mode of welding, sewing or anchor clamps by flat, thin chip led light source; Said flat, thin chip led light source comprises flat, thin chip substrate 1 and LED lamp pearl 3; Be designed with the LED land on the said flat, thin chip substrate 1, LED lamp pearl 3 is arranged on the LED land; Said LED lamp pearl 3 is fixed on the LED land through a mode of glue Reflow Soldering; The circuit input end of radiation column led light source is arranged on its outside in being somebody's turn to do, and avoids the photosensitiveness that of light source is impacted.

Said flat, thin chip substrate 1 can be the soft base plate substrate, can realize through being covered with (copper) conductive pattern on transparent polyester class film or polyimide film 2 surfaces.

Said flat, thin chip substrate 1 can also be no substrate substrate, and it only comprises the Copper Foil that forms conductive pattern; The Copper Foil of said formation conductive pattern is to be made through laser engraving or punch process by copper foil material, can make the LED land at its surface printing solder mask.

The optical property index of LED lamp pearl 3 is selected according to the environment for use of interior radiation column led light source; The shape of the Copper Foil of the formation conductive pattern of the conductive pattern of soft base plate substrate and no substrate substrate all adopts computer simulation method to come optimal design, to improve optics, electricity and the thermal property of whole interior radiation column led light source.

The above only is a preferred implementation of the present invention; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims

1. radiation column led light source in a kind; It is characterized in that: radiation column led light source is formed to crimped and fixing back by flat, thin chip led light source in this; Said flat, thin chip led light source comprises flat, thin chip substrate (1) and LED lamp pearl (3); Be designed with the LED land on the said flat, thin chip substrate (1), LED lamp pearl (3) is arranged on the LED land.

2. radiation column led light source in according to claim 1 is characterized in that: said LED lamp pearl (3) is fixed on the LED land through the mode of Reflow Soldering, laser weld or energising heating.

3. radiation column led light source in according to claim 1 is characterized in that: said flat, thin chip substrate (1) is for being covered with the transparent polyester class film or the polyimide film (2) of conductive pattern.

4. radiation column led light source in according to claim 1 is characterized in that: said flat, thin chip substrate (1) is for forming the Copper Foil of conductive pattern.

5. radiation column led light source in according to claim 4, it is characterized in that: the Copper Foil of said formation conductive pattern is to be made through over etching, laser engraving or punch process by copper foil material.

6. radiation column led light source in according to claim 4 is characterized in that: said LED land is through making at the copper foil surface printing solder mask that forms conductive pattern.

7. radiation column led light source in according to claim 1 is characterized in that: cross section of radiation column led light source is for circular in this.

8. radiation column led light source in according to claim 1 is characterized in that: radiation column led light source passes through welding, sewing or anchor clamps mode secure bond in this after crimped.

9. radiation column led light source in according to claim 1 is characterized in that: circuit input end of radiation column led light source is arranged on its outside in this.