CN203631598U - Long strip-shaped LED light source - Google Patents
Long strip-shaped LED light source Download PDFInfo
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- CN203631598U CN203631598U CN201320786296.5U CN201320786296U CN203631598U CN 203631598 U CN203631598 U CN 203631598U CN 201320786296 U CN201320786296 U CN 201320786296U CN 203631598 U CN203631598 U CN 203631598U
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- substrate
- reflection cavity
- long strip
- light source
- shaped
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Abstract
A long strip-shaped LED light source comprises a long strip-shaped substrate and reflecting cavities arranged on the long strip-shaped substrate and formed by direct rotary excavation. The reflecting cavities are truncated cone-shaped grooves and are distributed along the long strip-shaped substrate at equal intervals. LED chips are fixed in the reflecting cavities and connected in series through lead wires. The positive and negative poles of the serially-connected LED chips are led out of the two ends of the long strip-shaped substrate through two connecting wire sheets. The reflecting cavities are covered with phosphor glue. The phosphor glue is higher than the surfaces of the reflecting cavities and is shaped like a hemisphere on each reflecting cavity. The substrate of the light source is made of high heat conductivity metal materials and is high in heat conduction coefficient. The reflecting cavities are directly excavated in the substrate in a rotary manner and the chips are directly bonded onto the aluminum substrate. Thus, the thermal resistance of an insulating layer of a routine plate is reduced; and at the same time, the reflecting cavities can reflect light in the lateral sides of the chips outwards so that the illuminance can be increased effectively. Moreover, the light emitting surfaces are made to be spherical so that the emitted light is more concentrated and is higher in illuminance.
Description
Technical field
The utility model relates to LED light source technical field, especially relates to a kind of strip LED light source.
Background technology
General strip LED light source, traditional way is by one or number LEDs special support SMD paster for chip, then paster is welded on and on printed wiring board, forms light source, then wiring board is fixed on radiator, finally make the light fixture of various shapes and purposes.And the layer insulating heat conductivility that printed wiring board comprises is poor, be unfavorable for that the heat that chip in use produces distributes in time, thereby affect the useful life of LED chip, and need to mount, Reflow Soldering, because reflow soldering needs high temperature not only to increase many costs, and high temperature can be directly impact or destroy the bonding force between LED paster phosphor gel and support, cause the dead lamp of chip or air-moisture-permeable, reduction product useful life.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of strip LED light source, in order to solve the problems of the technologies described above.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of strip LED light source, comprise strip substrate and be arranged on this strip substrate and directly revolve and dig the reflection cavity forming, described reflection cavity is truncated cone-shaped groove, and this reflection cavity is equally spaced along strip substrate; In described reflection cavity, be fixed with LED chip, this LED chip is connected by wire; The both positive and negative polarity of the LED chip of described series connection is drawn at strip substrate two ends by two connection lugs respectively; Described reflection cavity top is coated with phosphor gel, and this phosphor gel exceeds reflection cavity surface, and above reflection cavity, forms spherical.
As preferably, described strip substrate is high heat conduction aluminium nitride thermal conductive ceramic, on this strip substrate, directly revolves and digs the reflection cavity forming.
As preferably, in described reflection cavity, do not contain insulating barrier, wherein the direct nation of LED chip fixes on substrate.
As preferably, described strip substrate is provided with multiple reflection cavities, and two parallel reflection cavity bands of composition, and reflection cavity is for collecting the scattered light of four sides of LED chip.
The utility model substrate adopts high-thermal conductive metal base plate, directly screws out reflection cavity on substrate, and the direct nation of chip is fixed on metal substrate, has reduced the thermal resistance of conventional plate insulating layer, and reflection cavity can reflect away chip sides light again simultaneously, effectively increases illuminance.Luminous millet cake globulate, makes the light of ejaculation more concentrated, and illumination is higher.
Compared with prior art, the utlity model has following characteristics: 1) on substrate, directly screw out reflection cavity, chip is directly fixed on aluminium base, there is no insulating barrier, reduces thermal resistance.
2) LED is reflected diffusing of chip sides light and other faces by reflection cavity, increases axial intensity.
3) at reflection cavity phosphor surface by glue spots glomeration, increase output light flux, effectively improve illuminance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cutaway view of A-A shown in Fig. 1.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Fig. 1 is structural representation of the present utility model; Fig. 2 is the cutaway view of A-A shown in Fig. 1.From Fig. 1, in conjunction with Fig. 2, a kind of strip LED light source, mainly by strip substrate 1 be arranged on directly to revolve on this strip substrate 1 and dig the reflection cavity 2 forming and form; Wherein strip substrate 1 is made for high-thermal conductive metal material.Described reflection cavity 2 is inverted round table connected in star, and this reflection cavity 2 is equally spaced along strip substrate 1, and strip substrate 1 is provided with multiple reflection cavities 2, and two parallel reflection cavity bands of composition.In described reflection cavity 2, be fixed with LED chip 4, this LED chip 4 is connected by wire 3; The both positive and negative polarity of the LED chip 4 of described series connection is drawn at strip substrate 1 two ends by two connection lugs respectively; Described reflection cavity 2 tops are coated with fluorescent material 5, and this phosphor gel 5 exceeds reflection cavity 2 surfaces, and above reflection cavity 2, form spherically, improve and get optical efficiency, strengthen center illumination.
The utility model substrate adopts high-thermal conductive metal material, on substrate, directly screw out reflection cavity, the direct nation of chip is fixed on metal substrate, both reduced the thermal resistance of conventional plate insulating layer, increase illuminance, because directly encapsulate, reduced SMD paster and reflow soldering link again on metal substrate, reduce cost, effectively improved product useful life.
Claims (3)
1. a strip LED light source, comprises strip substrate and is arranged on this strip substrate and directly revolve and dig the reflection cavity forming, it is characterized in that, described reflection cavity is truncated cone-shaped groove, and this reflection cavity is equally spaced along strip substrate; In described reflection cavity, be fixed with LED chip, this LED chip is connected by wire; The both positive and negative polarity of the LED chip of described series connection is drawn at strip substrate two ends by two connection lugs respectively.
2. a kind of strip LED light source according to claim 1, is characterized in that, described strip substrate is provided with multiple reflection cavities, and two parallel reflection cavity bands of composition.
3. a kind of strip LED light source according to claim 2, is characterized in that, described reflection cavity top is coated with phosphor gel, and this phosphor gel exceeds reflection cavity surface, and above reflection cavity, forms spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320786296.5U CN203631598U (en) | 2013-12-04 | 2013-12-04 | Long strip-shaped LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320786296.5U CN203631598U (en) | 2013-12-04 | 2013-12-04 | Long strip-shaped LED light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631598U true CN203631598U (en) | 2014-06-04 |
Family
ID=50818047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320786296.5U Expired - Fee Related CN203631598U (en) | 2013-12-04 | 2013-12-04 | Long strip-shaped LED light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878628A (en) * | 2017-05-08 | 2018-11-23 | 朗德万斯公司 | Semiconductor light engine for spot |
-
2013
- 2013-12-04 CN CN201320786296.5U patent/CN203631598U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878628A (en) * | 2017-05-08 | 2018-11-23 | 朗德万斯公司 | Semiconductor light engine for spot |
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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: 20140604 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |