CN202901944U - A kind of LED light bulb - Google Patents

Abstract

The utility model discloses a LED bulb, including lamp holder, lamp body, drive power supply, LED light source, lamp shade, the lamp body include insulating upper housing and heat conduction lower housing, the lower extreme of upper housing is connected with the upper end of lower housing, the lamp holder is fixed on the upper portion of upper housing, drive power supply dress is connected with the dipole of lamp holder through the wire in the lamp body, it has a plurality of inclined planes to distribute between the edge of terminal surface and the heat pipe outer peripheral face under a heat pipe, the LED light source is equipped with on the lower terminal surface of heat pipe and at least part inclined plane on a plurality of inclined planes, the upper end of heat pipe is connected with the lower extreme of lower housing, each LED light source is connected with the drive power supply electricity that sets up in the lamp body, the lamp shade contains heat pipe and each LED light source, its open-ended tip; the utility model discloses it is big to go out the plain noodles, and the radiating effect is good, convenient assembling, low in manufacturing cost.

Description

A kind of LED light bulb

technical field

The utility model relates to an LED bulb.

Background technique

Nowadays, LED light bulbs have been effectively used because of their energy saving and long service life. However, due to the narrow light-emitting surface and high manufacturing cost of LED light bulbs, their application is also restricted to a certain extent. At the same time, the heat dissipation problem of LED light sources will also affect LED light bulbs. service life.

On April 20, 2011, a utility model patent with the patent number ZL201020545585.2 and the name "LED ball bulb" was disclosed, which includes a lamp holder, an LED chip, and a spherical bulb body. The LED chip is packaged on an aluminum substrate, and on the aluminum substrate There are multiple pits for placing LED chips. The edges of the pits are in the form of reflective slopes. The bottom of the aluminum substrate is provided with a heat sink, and a thermal conductive silicone grease layer is arranged between the aluminum substrate and the heat sink. Lenses for light distribution. This kind of LED bulb can effectively improve the heat dissipation effect and reduce the working temperature of the LED chip, but the manufacturing process is more complicated, the assembly is more difficult, and the manufacturing cost is higher.

Utility model content

The technical problem to be solved by the utility model is to provide an LED light bulb with large light emitting surface, good heat dissipation effect, convenient assembly and low manufacturing cost.

In order to achieve the above purpose, the technical solution of the utility model is: an LED light bulb, including a lamp holder, a lamp housing, a driving power supply, an LED light source, and a lamp shade, wherein the lamp housing includes an insulating upper shell and a heat-conducting The lower casing, the lower end of the upper casing is connected with the upper end of the lower casing, the lamp cap is fixed on the upper part of the upper casing, the driving power is installed in the lamp casing and connected with the two poles of the lamp cap through wires, and the edge of the lower end surface of a heat pipe There are multiple slopes distributed between the heat pipe and the outer peripheral surface of the heat pipe, and LED light sources are installed on the lower end surface of the heat pipe and at least part of the multiple slopes. The driving power in the lamp housing is electrically connected, the lamp housing contains the heat pipe and each LED light source, and the end of the opening is fixed to the outer peripheral surface of the lower housing.

As a further improvement, the lower end surface of the heat pipe installed with the LED light source and the inclined surface are respectively provided with installation grooves. Better positioning and assembly of LED light sources.

Preferably, the slopes of the heat pipe installed with the LED light source are evenly distributed in the circumferential direction of the outer surface of the heat pipe. Make the light output of the LED light source more uniform.

Preferably, the upper end of the heat pipe is connected to the lower end of the lower casing through threads. Easy to assemble. the

Preferably, the lower end of the upper shell is connected with the upper end of the lower shell through threads. Easy to assemble.

As a further improvement, the outer peripheral surface of the upper casing is provided with a plurality of through holes communicating with the inner side of the upper casing. Further improve the heat dissipation effect of the LED light source and reduce the working temperature of the LED lamp bead.

Preferably, the LED light source is composed of an aluminum substrate and LED beads mounted on the aluminum substrate. Because the aluminum substrate has a better heat transfer effect, the heat generated by the LED lamp beads can be better transferred to the heat pipe to further improve the heat dissipation effect of the LED light source and reduce the working temperature of the LED lamp beads.

In the utility model, since there are multiple slopes distributed between the edge of the lower end surface of the heat conduction tube and the outer peripheral surface of the heat conduction tube, the lower end surface of the heat conduction tube is equipped with an LED light source for emitting light in the downward direction, and the LED light source installed on the inclined surface of the heat conduction tube is used for The light is emitted toward the periphery of the heat pipe, so its light emitting surface is relatively large. On the other hand, most of the heat emitted by the LED light source can be transferred to the outer lower shell through the heat pipe itself, and then dissipated through the lower shell. Better; therefore, a larger power LED lamp bead can be installed on the LED light source to increase the brightness of the bulb.

In addition, the heat pipe and the lower casing can be connected by screw connection or clip connection, which is convenient for assembly, and the structure of the whole bulb is relatively simple, and the manufacturing cost is low.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a front view of the heat pipe of the present invention.

Fig. 4 is a perspective view of the heat pipe of the present invention.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 to 4, an LED light bulb includes a lamp cap 1, a lamp housing 2, a driving power supply 3, an LED light source 4, and a lampshade 5. The lamp housing 2 is composed of an insulating upper housing 21 and a heat-conducting lower housing. Body 22 combined, the lower end of the upper shell 21 and the upper end of the lower shell 22 can be connected by threads, the lamp cap 1 is fixed on the upper part of the upper shell 21, the driving power 3 is installed in the lamp shell 2 through the wire and the lamp cap 1 The two poles are connected;

A plurality of slopes 63 are distributed between the edge of the lower end surface 61 of the heat pipe 6 and the outer peripheral surface 62 of the heat pipe 6. The LED light source 4 is installed on the lower end surface 61 and part of the slope 63 of the heat pipe 6. The LED light source 4 can be made of an aluminum substrate and The LED light beads mounted on the aluminum substrate are composed of mounting grooves 611 and 631 on the lower end surface 61 of the heat pipe 6 installed with the LED light source 4 and the slope 63 respectively, and the heat conduction of the LED light source 4 is installed. The slopes 63 of the tube 6 are evenly distributed in the circumferential direction of the outer surface of the heat pipe 6;

The upper end of the heat pipe 6 and the lower end of the lower housing 22 can be threadedly connected, and each LED light source 4 is electrically connected to the driving power supply 3 arranged in the lamp housing 2, and the lampshade 5 contains the heat pipe 6 and the opening of each LED light source 4. The end portion is fixed to the outer peripheral surface of the lower case 22 .

A plurality of through holes 211 communicating with the inside of the upper case 21 may also be provided on the outer peripheral surface of the upper case 21 .

The above is only a preferred embodiment of the utility model, and equivalent changes made by those skilled in the art according to the claims all fall within the protection scope of the present case.

Claims (7)

1. A LED light bulb, comprising a lamp cap, a lamp housing, a driving power supply, an LED light source, and a lampshade, characterized in that: the lamp housing includes an insulating upper casing and a heat-conducting lower casing, the lower end of the upper casing and the lower The upper end of the shell is connected, the lamp cap is fixed on the upper part of the upper shell, the driving power is installed in the lamp shell and connected with the two poles of the lamp cap through wires, and a plurality of The slope, the lower end surface of the heat pipe and at least part of the slopes are equipped with LED light sources, the upper end of the heat pipe is connected to the lower end of the lower casing, each LED light source is electrically connected to the driving power provided in the lamp housing, and the lampshade contains The open ends of the heat pipe and each LED light source are fixed to the outer peripheral surface of the lower casing. 2 . The LED light bulb according to claim 1 , wherein the lower end surface of the heat pipe on which the LED light source is installed and the inclined surface are respectively provided with installation grooves. 3 . 3 . The LED light bulb according to claim 1 , wherein the slopes of the heat pipe installed with the LED light source are evenly distributed in the circumferential direction of the outer surface of the heat pipe. 4 . 4. The LED light bulb according to claim 1, characterized in that: the upper end of the heat pipe is connected to the lower end of the lower casing through threads. 5. The LED light bulb according to claim 1, characterized in that: the lower end of the upper casing is connected to the upper end of the lower casing through threads. 6 . The LED light bulb according to claim 1 , wherein the outer peripheral surface of the upper casing is provided with a plurality of through holes communicating with the inner side of the upper casing. 7 . 7. The LED light bulb according to any one of claims 1 to 6, wherein the LED light source is composed of an aluminum substrate and LED beads mounted on the aluminum substrate.

Images