CN202469545U

CN202469545U - LED corn lamp

Info

Publication number: CN202469545U
Application number: CN2011205021491U
Authority: CN
Inventors: 贾迎春; 张卫; 王阳夏; 肖俊
Original assignee: Xiamen Hualian Electronics Co Ltd
Current assignee: Xiamen Hualian Electronics Co Ltd
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2012-10-03
Anticipated expiration: 2021-12-06

Abstract

The utility model discloses an LED corn lamp, which comprises a hollow rod-shaped radiator, a plurality of PCB boards with LED luminous bodies, a lamp holder and an LED drive circuit. The outer peripheral surface of the rod-shaped radiator is designed as a polyhedron. Each surface of the periphery of the rod-shaped radiator is provided with a PCB board with an LED luminous body. The upper part of the rod-shaped radiator is connected with the lamp holder. The LED drive circuit is arranged in the lamp holder. The LED drive circuit is connected with the lamp holder and the PCB boards through wires. Each PCB board with an LED luminous body is provided with an independent cover cap. The area enclosed by the connection end surface of each independent cover cap is smaller than the area of the corresponding outer peripheral surface of the rod-shaped radiator connected with the independent cover cap. The lower end surface of the rod-shaped radiator can also be provided with a PCB board with an LED luminous body. The above PCB board is also provided with a cover cap. The LED corn lamp provided by the utility model has the advantages of novel moulding, good heat dissipation effect, long service life and uniform light emission effect.

Description

A kind of LED corn lamp

Technical field

The utility model relates to the LED field of illumination lamp technology, especially a kind of LED corn lamp.

Background technology

On a kind of outer surface that is arranged on a plurality of LED illuminators through pcb board bar-shaped radiator so that the light of LED illuminator can be around bar-shaped radiator circumfusion; Because it exactly likes corn ear; This LED lamp just is commonly called as LED corn lamp; LED corn light fixture has moulding unique, the characteristics that the irradiate light angle is big.

Disclosing a patent No. on 08 31st, 2011 is that ZL201120012484.3, name are called the utility model patent of " a kind of LED corn lamp "; It comprises clavate main body, lamp holder and is installed in the LED driving power plate in the clavate main body, and the clavate main body is fixed in the lamp holder, and clavate main body periphery is equiped with led light source; Led light source is electrically connected with LED driving power plate; LED driving power plate is electrically connected with lamp holder, and clavate main body periphery is covered with a translucent cover, and this translucent cover is fixedly connected with lamp holder; This LED corn lamp can reach the purpose that prevents dust and rainwater etch; But this LED corn lamp plays the clavate main body of thermolysis and also is covered with a translucent cover by the led light source encirclement and in its periphery; Therefore its heat radiation is difficult; Radiating effect is poor, can have influence on the luminous efficiency and the service life of led light source, and bulk life time is shorter.

The utility model content

The technical problem that the utility model will solve provides a kind of LED corn lamp, modern design, good heat dissipation effect, long service life.

For achieving the above object; The technical scheme of the utility model is: a kind of LED corn lamp; Comprise hollow rod-shape radiator, the pcb board of a plurality of LED of being provided with illuminators, lamp holder, led drive circuit; Said bar-shaped radiator outer peripheral face is a polyhedron, on each face of said bar-shaped radiator periphery, is equipped with a pcb board that has the LED illuminator, and the top of bar-shaped radiator is connected with lamp holder; Led drive circuit is arranged in the lamp holder; Led drive circuit is connected through lead with each pcb board with lamp holder, and each pcb board that has the LED illuminator is provided with independent cover cap, and each independent cover cap connects the area that surrounds with end face less than the area that is attached thereto the corresponding outer peripheral face of shape radiator of taking over the baton.

Further improve, the lower surface of said bar-shaped radiator also is provided with the pcb board of band LED illuminator, on this pcb board, also is provided with cover cap.

Further improve; The top of said bar-shaped radiator utilizes cone-shaped radiator small end to be connected with lamp holder after one of connection is roughly the cone-shaped radiator earlier again; Whole like this radiating effect is better; Make the work under low temperature more of the luminous physical efficiency of LED, further improve the luminous efficiency of LED illuminator, prolong LED illuminator service life.

Said bar-shaped radiator and cone-shaped radiator be formed in one also can be split type; When said bar-shaped radiator and cone-shaped radiator are split type; Can in the middle of the cone-shaped radiator, be provided with connecting plate, utilize this connecting plate to lock mutually with the top of bar-shaped radiator with screw.

Further improve, described bar-shaped radiator is made up of intermediate tubular part and a plurality of T shape parts that are connected on this tube-like piece outer surface again, and each T shape part upper surface constitutes the polyhedron of bar-shaped radiator; On the outer surface of said tube-like piece and T shape part, also can be provided with radiating fin, the area of dissipation of this bar-shaped radiator is bigger, good heat dissipation effect.

Further improve, the described independent cover cap that is arranged on bar-shaped each face of radiator periphery is a circular arc, makes that the bright dipping of LED illuminator is more evenly soft again.

The utility model is because bar-shaped radiator outer peripheral face is a polyhedron; On each face of said bar-shaped radiator periphery, be equipped with a pcb board that has the LED illuminator; Each pcb board that has the LED illuminator is provided with independent cover cap; Each independent cover cap connects the area that surrounds with end face less than the area that is attached thereto the corresponding outer peripheral face of shape radiator of taking over the baton, and this structure makes bar-shaped radiator part outer surface exposed externally, and the convenient heat that distributes the LED illuminator exports in the extraneous air; Therefore the luminous physical efficiency of LED is worked at a lower temperature; Both improved the luminous efficiency of LED illuminator, and also prolonged the service life of LED illuminator, the service life of whole LED corn lamp is just longer.

On the other hand, because of each pcb board that has the LED illuminator is provided with independent cover cap, its moulding is relatively more novel.

Description of drawings

Fig. 1 is the utility model stereogram.

Fig. 2 is the stereogram after the utility model is removed cover cap.

Fig. 3 is bar-shaped radiator of the utility model and the cone-shaped radiator stereogram that links together.

Fig. 4 is the bar-shaped radiator stereogram of the utility model.

Fig. 5 is the bar-shaped radiator vertical view of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing and concrete embodiment the utility model is done further explain.

Fig. 1 is to shown in Figure 3; A kind of LED corn lamp; The pcb board 2, lamp holder 3, the led drive circuit 4 that comprise hollow rod-shape radiator 1, a plurality of LED of being provided with illuminators 21; Said bar-shaped radiator 1 outer peripheral face is a polyhedron, on each face of said bar-shaped radiator 1 periphery, is equipped with a pcb board 2 that has LED illuminator 21, and the top of bar-shaped radiator 1 can directly be connected with lamp holder 3 and also can be connected one earlier and utilize cone-shaped radiator 5 small end to be connected with lamp holder 3 again after being roughly cone-shaped radiator 5; Integral heat sink better effects if like this; Said bar-shaped radiator 1 and cone-shaped radiator 5 can be formed in one also can be split type, when both when be split type, can a plate 51 be set in cone-shaped radiator 5 centres; Utilize these connecting plate 51 usefulness screws to lock mutually with the top of bar-shaped radiator 1, cone-shaped radiator 5 also can be provided with radiating fin 52 at its outer peripheral face;

Led drive circuit 4 is arranged in the lamp holder 3; Led drive circuit 4 and lamp holder 3 and each pcb board 2 are connected through lead; Each pcb board 2 that has LED illuminator 21 is provided with independent cover cap 6; Each independent cover cap 6 connects the area that surrounds with end face less than the area that is attached thereto the shape radiator 1 corresponding outer peripheral face of taking over the baton, and the profile of independent cover cap 6 can be designed to circular arc, makes that the bright dipping of LED illuminator 21 is more evenly soft.

The pcb board 2 of band LED illuminator 21 also can be set in the lower surface of bar-shaped radiator 1; On this pcb board 2, also be provided with cover cap 7; The shape of this pcb board 2 is corresponding with the shape of the lower surface of said bar-shaped radiator 1, makes that like this whole LED corn lamp exiting surface is more complete, and light is more even.

Fig. 4, shown in Figure 5, described bar-shaped radiator 1 is made up of intermediate tubular part 11 and a plurality of T shape parts 12 that are connected on these tube-like piece 11 outer surfaces, and each T shape part 12 upper surface constitutes the polyhedron of bar-shaped radiator 1.

Be equipped with radiating fin 111,121 on the outer surface of said tube-like piece 11 and T shape part 12.

Below only be preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.

Claims

1. LED corn lamp; Comprise hollow rod-shape radiator, the pcb board of a plurality of LED of being provided with illuminators, lamp holder, led drive circuit; Said bar-shaped radiator outer peripheral face is a polyhedron, on each face of said bar-shaped radiator periphery, is equipped with a pcb board that has the LED illuminator, and the top of bar-shaped radiator is connected with lamp holder; Led drive circuit is arranged in the lamp holder; Led drive circuit is connected through lead with each pcb board with lamp holder, it is characterized in that: each pcb board that has the LED illuminator is provided with independent cover cap, and each independent cover cap connects the area that surrounds with end face less than the area that is attached thereto the corresponding outer peripheral face of shape radiator of taking over the baton.

2. a kind of LED corn lamp according to claim 1 is characterized in that: the lower surface of said bar-shaped radiator also is provided with the pcb board of band LED illuminator, on this pcb board, also is provided with cover cap.

3. a kind of LED corn lamp according to claim 1 is characterized in that: utilize cone-shaped radiator small end to be connected with lamp holder again after one of the top elder generation connection of said bar-shaped radiator is roughly the cone-shaped radiator.

4. a kind of LED corn lamp according to claim 3, it is characterized in that: said bar-shaped radiator and cone-shaped radiator are split type, are provided with connecting plate in the middle of the cone-shaped radiator, utilize this connecting plate to lock mutually with the top of bar-shaped radiator with screw.

5. a kind of LED corn lamp according to claim 3, it is characterized in that: said bar-shaped radiator and cone-shaped radiator are formed in one.

6. according to each described a kind of LED corn lamp of claim 1 to 5; It is characterized in that: described bar-shaped radiator is made up of intermediate tubular part and a plurality of T shape parts that are connected on this tube-like piece outer surface, and each T shape part upper surface constitutes the polyhedron of bar-shaped radiator.

7. a kind of LED corn lamp according to claim 6 is characterized in that: be equipped with radiating fin on the outer surface of said tube-like piece and T shape part.

8. according to each described a kind of LED corn lamp of claim 1 to 5, it is characterized in that: the described independent cover cap that is arranged on bar-shaped each face of radiator periphery is a circular arc.