CN210197246U

CN210197246U - Tubular LED heat radiation structure

Info

Publication number: CN210197246U
Application number: CN201921204972.7U
Authority: CN
Inventors: Chunzhen Yu; 鱼淳朕
Original assignee: Guangzhou Conghua Hongguang Vehicle Parts Co Ltd
Current assignee: Guangzhou Conghua Hongguang Vehicle Parts Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-03-27
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a tubular LED heat dissipation structure, wherein a heat dissipation tube is connected with a chip component and respectively positioned at two sides of a substrate; the middle part of the pipe wall of the radiating pipe is an inner cavity, the mounting hole is internally provided with a block, the block comprises a through hole and a block wall, and the block wall is matched with the wall of the inner cavity in position; the bottom of the tube wall close to the substrate is provided with an air hole and is communicated with the inner cavity, and a central shaft of the inner cavity extends out of the tube wall and penetrates through the through hole to be connected with a central shaft mounting hole on a chip base of the chip assembly; the tubular LED heat dissipation structure provided by the utility model has the advantages that the lattice barrier wall is matched with the wall position of the inner cavity, so that the heat dissipation is convenient; the cold air enters from the air holes and forms a chimney effect in the inner cavity to realize enhanced heat dissipation.

Description

Tubular LED heat radiation structure

Technical Field

The utility model relates to a LED heat radiation structure field especially relates to a tubular LED heat radiation structure.

Background

The heat dissipation of the LED lamp is usually realized by increasing the heat dissipation area through fins. However, when the heat quantity to be dissipated by the LED chip is continuously increased, the increase in the height of the fins cannot enhance the heat dissipation, and the heat dissipation can be enhanced only by increasing the distribution area of the fins, which is disadvantageous to the simplification of the lamp structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a tubular LED heat radiation structure, this technical scheme is realized like this:

a tubular LED heat dissipation structure comprises a substrate, a heat dissipation tube, a chip assembly and a lampshade.

Each radiating pipe is connected with one chip assembly and is respectively positioned at two sides of the substrate. The middle part of the pipe wall of the radiating pipe is an inner cavity. The presence of the inner cavity enhances the area over which heat is dissipated, rather than just the wall of the tube. The base plate main part of base plate is equipped with the mounting hole, be the check in the mounting hole and keep off, the check keep off including perforation and check fender wall, the wall position matching installation of check fender wall and inner chamber only can make the heat on the check fender wall directly transmit the wall of inner chamber on like this, the heat dissipation of being convenient for. The contact surface of the grid wall and the inner cavity wall is bonded by using heat conducting glue.

The bottom of the tube wall close to the substrate is provided with an air hole and communicated with the inner cavity, cold air enters from the air hole, and a chimney effect is formed in the inner cavity to realize enhanced heat dissipation. The central shaft of the inner cavity extends out of the tube wall and penetrates through the through hole to be connected with a central shaft mounting hole on a chip base of the chip assembly. The chip base is connected with the LED chip far away from the substrate side.

The lampshade is combined with the substrate to cover the chip assembly. The connection power line of the chip assembly is connected to an external power source through the lamp housing.

Preferably, the inner cavity in the middle of the tube wall contains sub-inner cavities which divide the inner cavity into four equal parts, and four air holes are formed in the bottom, close to the substrate, of the tube wall and are respectively communicated with the four sub-inner cavities.

Optionally, the connection mode of the central shaft and the chip base is bonding.

The tubular LED heat dissipation structure provided by the utility model has the advantages that the lattice barrier wall is matched with the wall position of the inner cavity, so that the heat dissipation is convenient; the cold air enters from the air holes and forms a chimney effect in the inner cavity to realize enhanced heat dissipation.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;

fig. 1 is the utility model discloses the schematic view is disassembled to tubular LED heat radiation structure.

Fig. 2 is a front view of the base plate of the present invention.

Fig. 3 is a front view of the utility model.

Fig. 4 is a schematic view of the heat dissipation tube of the present invention.

Fig. 5 is a front view of the chip module of the present invention.

Reference numerals: 1-substrate, 11-substrate body, 12-mounting hole, 121-grid block, 122-perforation, 123-grid block wall, 2-radiating pipe, 21-pipe wall, 22-inner cavity, 221-sub-inner cavity, 23-center shaft, 24-air hole, 3-chip assembly, 31-LED chip, 32-chip base, 33-center shaft mounting hole and 4-lampshade.

Detailed Description

As shown in fig. 1-5, the present invention discloses a tubular LED heat dissipation structure, which includes a substrate 1, a heat dissipation tube 2, a chip module 3, and a lamp cover 4.

Each radiating pipe 2 is connected with one chip assembly 3 and is respectively positioned at two sides of the substrate 1. The middle part of the pipe wall 21 of the radiating pipe 2 is an inner cavity 22. The presence of the internal cavity 22 increases the area over which heat is dissipated, rather than just the tube wall 21. The inner cavity 22 comprises sub-inner cavities 221 which divide the inner cavity 22 into four equal parts, and four air holes 24 which are communicated with the four sub-inner cavities 221 are formed in the bottom, close to the substrate 1, of the tube wall 21. Cooling air is drawn from the air holes 24 and creates a chimney effect within the interior cavity 22 to achieve enhanced heat dissipation.

Be equipped with mounting hole 12 on the base plate main part 11 of base plate 1, be check in the mounting hole 12 and keep off 121, check keep off 121 including perforation 122 and check keep off wall 123, check keep off wall 123 and inner chamber 22's wall position matching installation, only so can make the heat on check keep off wall 123 directly transmit to inner chamber 22's wall on, be convenient for dispel the heat. The contact surface of the barrier wall 123 and the inner cavity 22 wall is bonded by using a heat conducting adhesive.

The central shaft 23 of the inner cavity 22 extends out of the tube wall 21 and passes through the through hole 122 to be connected with the central shaft mounting hole 33 on the chip base 32 of the chip assembly 3. The chip pad 32 is connected to the LED chip 31 on the side away from the substrate 1.

The lamp cover 4 is combined with the substrate 1 to cover the chip assembly 3.

The central shaft 23 and the chip base 32 are connected by adhesion.

The embodiment is only a single implementation manner of the present invention, and those skilled in the art can obtain other embodiments according to the drawings without any creative effort, and the embodiments are also within the protection scope of the present invention.

Claims

1. The utility model provides a tubular LED heat radiation structure which characterized in that: comprises a substrate (1), a radiating pipe (2), a chip assembly (3) and a lampshade (4);

the radiating pipe (2) is connected with the chip assembly (3) and is respectively positioned on two sides of the substrate (1); an inner cavity (22) is formed in the middle of a pipe wall (21) of the radiating pipe (2), a mounting hole (12) is formed in a base plate main body (11) of the base plate (1), a grid block (121) is arranged in the mounting hole (12), the grid block (121) comprises a through hole (122) and a grid block wall (123), and the grid block wall (123) and the inner cavity (22) are installed in a matched mode;

an air hole (24) is formed in the bottom, close to the substrate (1), of the tube wall (21) and communicated with the inner cavity (22), a middle shaft (23) of the inner cavity (22) extends out of the tube wall (21) and penetrates through the through hole (122) to be connected with a middle shaft mounting hole (33) in a chip base (32) of the chip assembly (3), and the side, far away from the substrate (1), of the chip base (32) is connected with an LED chip (31);

the lampshade (4) is combined with the substrate (1) to cover the chip assembly (3).

2. The tubular LED heat dissipation structure of claim 1, wherein: the inner cavity (22) in the middle of the tube wall (21) comprises sub-inner cavities (221) which divide the inner cavity (22) into four equal parts, and four air holes (24) are formed in the bottom, close to the substrate (1), of the tube wall (21) and communicated with the four sub-inner cavities (221) respectively.

3. The tubular LED heat dissipation structure of claim 1, wherein: the connecting mode of the central shaft (23) and the chip base (32) is bonding.