CN201028326Y

CN201028326Y - Novel LED illuminating body

Info

Publication number: CN201028326Y
Application number: CNU2007200050580U
Authority: CN
Inventors: 哈剑波; 陈合军
Original assignee: BAODING BEICHENG SOLAR ENERGY Co Ltd
Current assignee: BAODING BEICHENG SOLAR ENERGY Co Ltd
Priority date: 2007-02-14
Filing date: 2007-02-14
Publication date: 2008-02-27
Anticipated expiration: 2017-02-14

Abstract

The utility model relates to a lighting lamp, in particular to a LED lighting illuminant, consisting of a plurality of LEDs and a plurality of heat sink fins which are arranged on a PCB print circuit board. The plurality of LEDs is arrayed in a shape of concentric circle or similar ellipse. The circumference is evenly divided by LEDs on each circle, and the connection line of two pins of each LED is tangent to the circumference. The LED is inclined to from a certain angle with the PCB print circuit board according to different design. The heat sink pin is arranged at the back of the PCB print circuit board and is connected with the pin of the LED. The utility model is used in solar street lamp and other lighting fields. The utility model has the advantages of not only increasing the lighting intensity and the evenness of the LED, but also decreasing the surface temperature of the LED to make the surface temperature of the LED when in normal use below 50 DEG C, and greatly decreasing the energy consumption under same brightness by taking the LED as light source when compared with other lighting lamp.

Description

A kind of New LED illumination light-emitting body

Technical field

The utility model belongs to lighting, is specially a kind of New LED illumination light-emitting body, can be applicable to the illumination of multiple occasion widely.

Background technology

LED is that light emitting diode uses the time of having only a few years as illumination at present.LED has long service life (can reach more than 100,000 hours), power consumption is low, heating is little, brightness is higher, no poisonous metal, free of contamination advantage, more and more be subjected to people's attention, but because LED is a kind of spot light, very strong directive property is arranged, and a plurality of LED use the restriction that is encapsulated, heat can not well transmit, and heat radiation also becomes the bottleneck of a restriction LED illumination development.

Summary of the invention

The purpose of this utility model is to overcome defectives such as existing LED illumination light-emitting body illumination uniformity is not enough, heat dissipation problem is difficult to overcome, and a kind of New LED illumination light-emitting body that can effectively improve the brightness of LED illuminator, increase the illumination uniformity, perfect heat-dissipating is provided.

The technical solution of the utility model is as follows: a kind of New LED illumination light-emitting body, constitute by the some LED and the some radiating fins that are arranged on the PCB printed substrate, some LED arrange with concentric circles or sub-elliptical shape, LED on every circle divides equally the circumference at place, and the line of two pins of each LED and the circumference at place are tangent, radiating fin is arranged on the back side of PCB printed substrate and the pin of LED joins, and a LED is connected across on two radiating fins, and LED is connected in the circuit.

Aforesaid New LED illumination light-emitting body, wherein, LED can all select optically focused LED for use; Perhaps, the LED of adjacent circumferential can adopt optically focused, astigmatic LED to be used alternatingly, and the LED on each circle tilts according to designing requirement, has a certain degree with PCB printed substrate shape; Perhaps, LED selects ultra-bright LED for use.

Aforesaid New LED illumination light-emitting body, wherein, the PCB printed substrate is one group of wiring according to the different electrical power needs with 4 or a plurality of LED, organizes parallel connection according to different needs more; Be provided with the through hole that is used for fixing LED and radiating fin, the through hole that is used to install and fix above the PCB printed substrate, and be used for cross-ventilated through hole.

LED arranges with circle or approximate ellipsoidal in the utility model, and with the LED certain angle that tilts, the illumination uniformity of whole LED illuminator is much improved; Aspect heat radiation, adopt radiating fin (5 * 20 fuse clips) and the pin of LED to join, the heat that can be highly effective LED be produced when luminous is delivered to radiating fin (5 * 20 fuse clips) from the pin of LED and is delivered to the air again, thereby prolonged the service life of LED, reduced the light decay of LED.The utility model is applied in solar street light or other lighting field, has not only promoted the intensity of illumination and the uniformity of LED, but also has greatly reduced the LED surface temperature, makes the surface temperature of LED when normal the use be lower than 50 ℃.

Description of drawings

Fig. 1 is the utility model syndeton schematic diagram.

Fig. 2 is a concentric circles PCB printed substrate structure schematic diagram of the present utility model.

Fig. 3 sub-elliptical PCB of the present utility model printed substrate structure schematic diagram.

Among the figure, 1.LED 2.PCB printed substrate 3. radiating fins 4. through holes 5. through holes 6. through holes

The specific embodiment

As shown in the figure, New LED illumination light-emitting body comprises the some LED1 that are arranged on PCB printed substrate 2 fronts, the pin of LED1 is fixed on the front of PCB printed substrate 2 by through hole 4, and join with the radiating fin 3 that is arranged on PCB printed substrate 2 back sides, radiating fin is fixed on the back side of PCB printed substrate 2 by through hole 4, a LED is connected across on two radiating fins, and LED is connected in the circuit.Some LED1 arrange with concentric circles or sub-elliptical shape, and the LED1 on every circle divides equally the circumference at place, and the circumference at the line of two pins of each LED1 and place is tangent; LED1 can all select for use the LED of optically focused LED or adjacent circumferential can adopt optically focused, astigmatic LED to be used alternatingly, and the LED1 on each circle tilts according to designing requirement, with PCB printed substrate shape at 45～90 ° angle; LED1 selects ultra-bright LED for use; When power supply is 12V, PCB printed substrate 2 is one group of wiring with 4 LED, and when power supply was 24V, PCB printed substrate 2 was one group of wiring with 8 LED, be that the PCB printed substrate is one group of wiring according to the different electrical power needs with a plurality of LED, and organize parallel connection more according to different needs; Wherein PCB printed substrate 2 also leaves some cross-ventilated through holes 6 that are used for except that being useful on through hole 5 neighborings that install and fix; Radiating fin 3 adopts common 5 * 20 fuse clip or other sheet metal.

LED arranges with circle or approximate ellipsoidal in the utility model, and with the LED certain angle that tilts, all adopt the LED on optically focused LED or the adjacent circles to adopt optically focused LED and astigmatic LED respectively, make the illumination uniformity of whole LED illuminator obtain very big improvement; The fuse clip of employing 5 * 20 and the pin of LED join aspect heat radiation, also be provided with some cross-ventilated through holes of using at the PCB printed substrate, the heat that this structure can be highly effective be produced LED when luminous is delivered in the air, thereby prolonged the service life of LED, reduced the light decay of LED.The utility model is applied in solar street light or other lighting field, has not only promoted the intensity of illumination and the uniformity of LED, but also has reduced the LED surface temperature, makes the surface temperature of LED when normal the use be lower than 50 ℃.

Claims

1. New LED illumination light-emitting body, comprise the some LED (1) and the some radiating fins (3) that are located on the PCB printed substrate (2), it is characterized in that: some LED (1) are arranged in the front of PCB printed substrate (2) with concentric circles or sub-elliptical shape, LED on every circle (1) divides equally the circumference at place, and the line of two pins of each LED (1) and the circumference at place are tangent, radiating fin (3) is arranged on the back side of PCB printed substrate (2) and joins with the pin of LED (1), a LED (1) is connected across on two radiating fins (3), and LED (1) is connected in the circuit.

2. New LED illumination light-emitting body as claimed in claim 1 is characterized in that: LED (1) all selects optically focused LED for use; Perhaps, the LED of adjacent circumferential adopts optically focused, astigmatic LED to be used alternatingly; LED and PCB printed substrate shape on each circle be at 45～90 ° angle.

3. New LED illumination light-emitting body as claimed in claim 1 or 2 is characterized in that: LED (1) selects ultra-bright LED for use.

4. New LED illumination light-emitting body as claimed in claim 1 or 2 is characterized in that: PCB printed substrate (2) is one group of wiring with 4 or a plurality of LED, and many groups are in parallel; The PCB printed substrate is provided with the through hole (4) that is used for fixing LED (1) and radiating fin (3), the through hole (5) that is used to install and fix, and is used for cross-ventilated through hole (6).

5. New LED illumination light-emitting body as claimed in claim 1 is characterized in that: radiating fin (3) adopts common 5 * 20 fuse clip.