CN201074744Y - LED bar-shaped lamp with cooling function - Google Patents

Abstract

The utility model discloses an LED strip lamp with heat dissipation function, which comprises an aluminum casing, a PCB board and a high-power LED welded on the PCB board. The cover consists of three parts, in which the cooling fins are axially distributed on the upper surface of the heat-conducting substrate, and there are air passages between adjacent cooling fins; An opening is formed, and the opening is closed by a tempered glass plate. Compared with the prior art, the shell of the utility model is a whole, and the heat sink is located on the upper part of the shell, and is in close contact with the LED lamp through the heat conduction substrate. When the LED is working, the heat generated will be dissipated in time through the heat sink. Moreover, an air circulation channel is arranged between the cooling fins, which is beneficial to heat dissipation. The utility model has the characteristics of few components, simple structure, easy processing, good heat dissipation performance and the like.

Description

A LED strip light with cooling function

Technical field:

The utility model relates to the lighting field, in particular to a high-power LED lighting assembly with good heat dissipation performance, which is used for high-power LED strip lights.

Background technique:

Compared with traditional incandescent lamps and fluorescent lamps, LED white light lighting has many advantages such as power consumption, lifespan, and environmental protection; the power consumption of LED bulbs with the same brightness is only 10% of that of incandescent lamps, and its life span can reach 100,000 hours. Fluorescent lamps last 10 times longer and 100 times longer than incandescent lamps. Incandescent lamps consume a lot of power, and the bulbs are fragile and easy to get an electric shock. Fluorescent lamps are bad for human eyesight, and the mercury in the lamp tube is harmful to human body and environment. LED white light lighting is the closest to sunlight and can reflect the true color of objects very well. The application market of LED white light lighting is very extensive, and it is bound to replace incandescent and fluorescent lamps. In addition, LED is a fully fixed cold light source, smaller, lighter and stronger, with a working voltage of only 3.5 volts and a service life of more than 10 years. The spectrum of LED lights is almost entirely concentrated in the visible light frequency band, and the efficiency is as high as 80%-90% %.

Although LED white light lighting has advantages in terms of power consumption, lifespan, and environmental protection, it often causes product damage due to serious heating during operation, especially for high-power LED lights. In order to solve this problem, Chinese invention patent CN1793719 "Heat Dissipation Component Structure of High-Power LED Lamp" proposes a heat dissipation component structure of high-power LED lamp, which includes a matched base, a light-emitting component, a switching power supply component, and a base cavity. The inner and rear parts are equipped with switching power supply components, and the switching power supply components include an inner ring; the front part of the base cavity is embedded with light emitting components, and the light emitting components include matching heat sinks, reflective bowls, high-power LED bulbs, and lenses; the inner ring is embedded heat sink. The reflective bowl has a light transmission hole in the center and a step at the periphery. The light transmission hole of the reflection bowl is embedded with a lens, and the step of the reflection bowl is engaged with the periphery of the front port of the base; the heat sink is located at the rear and inner ring of the reflection bowl In the front part, the heat sink, reflective bowl and base are matched by fasteners; the lamp cap on the heat sink lamp holder is located in the front of the heat sink, and the high-power LED bulb is installed on the lamp cap; the lamp cap is electrically connected to the switching power supply assembly. Although the structure of the heat dissipation component of this high-power LED lamp has heat dissipation performance, its structure is complex and difficult to manufacture, especially inconvenient for maintenance.

Utility model content:

The technical problem to be solved by the utility model is to provide a high-power LED lamp with simple structure, easy production and good heat dissipation performance in view of the above shortcomings.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

An LED strip light with heat dissipation function, including an aluminum shell, a PCB board and a high-power LED welded on the PCB board, the aluminum shell is a whole, composed of three parts: a heat sink, a heat conducting substrate and a cover body , wherein the cooling fins are axially distributed on the upper surface of the heat-conducting substrate, and air channels are provided between adjacent cooling fins; the cover is axially located on both sides of the lower end of the heat-conducting substrate, and an opening is formed directly below the cover, and the The opening is closed by a tempered glass panel.

Wherein the PCB board is fixedly installed on the lower surface of the heat-conducting substrate along the axial direction, and is in close contact with the lower surface of the heat-conducting substrate.

Wherein the tempered glass plate is glued to the inner wall of the opening of the cover body.

Wherein, baffles are fixedly installed on both radial sides of the aluminum shell.

Wherein the heat sink is also provided with a mounting bracket.

The aluminum casing is also provided with a power conversion device, through which the external alternating current can be converted into direct current for LED operation.

Compared with the prior art, the shell of the utility model is a whole, and the heat sink is located on the upper part of the shell, and is in close contact with the LED lamp through the heat conduction substrate. When the LED is working, the heat generated will be dissipated in time through the heat sink. Moreover, an air circulation channel is arranged between the cooling fins, which is beneficial to heat dissipation. The utility model has the characteristics of few components, simple structure, easy processing, good heat dissipation performance and the like.

Description of drawings:

Fig. 1 is a schematic diagram of an exploded structure of an embodiment of the utility model.

Fig. 2 is a schematic cross-sectional view of the overall structure of the embodiment of the utility model.

Instructions in the figure: aluminum shell 1, heat sink 101, heat conduction substrate 102, cover body 103, inner wall 104, screw hole 105, screw hole 106, screw hole 107, PCB board 2, high-power LED lamp 3, tempered glass plate 4. Baffle plate 5, screw 6, mounting bracket 7, power conversion device 8, waterproof insulating pipe 9.

Detailed ways:

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

The structural drawings of the utility model are shown in Figures 1 to 2, a LED strip light with heat dissipation function, including an aluminum shell 1, a PCB board 2 and a high-power LED lamp 3, and the PCB board 2 is welded with A plurality of high-power LED lamps 3, and the entire PCB board 2 are fixedly installed inside the aluminum casing 1, and the PCB board 2 here is an aluminum extruded circuit board with good thermal conductivity.

The aluminum housing 1 is in the shape of a strip, and it is mainly composed of a heat sink 101 , a heat conducting substrate 102 and a cover 103 as a whole. Among them, a plurality of heat sinks 101 are distributed on the upper surface of the heat conduction substrate 102, and an air passage for facilitating heat dissipation is provided between adjacent heat sinks 101; screw holes and wire holes are provided on the lower surface of the heat conduction substrate 102, and the PCB board 2 passes through the screw holes It is fixed on the lower surface of the heat-conducting substrate 102, and the wires electrically connected to the PCB board are connected to the power conversion device 8 through the waterproof insulating pipe 9, and the power conversion device 8 is connected to an external power source, and converts the external AC power into DC power to It is for LED operation. Since the PCB board 2 is located on the lower surface of the heat-conducting substrate 102 and is in close contact with it, the heat generated can be quickly conducted away; in addition, the lower sides of the heat-conducting substrate 102 are axially hooded 103, and the hood 103 faces to both sides. It is extended and has an opening shape, and its opening is located directly under the heat-conducting substrate 102 , and the opening is closed by a tempered glass plate 4 .

In order to facilitate installation and disassembly, a gap is provided at the opening of the lower end of the cover body 103, and the tempered glass plate 4 is located at the gap, and is bonded to the inner wall 104 of the opening by glue.

It can be seen from the side view of the aluminum housing 1 in Fig. 2 that there are screw holes 105, screw holes 106 and screw holes 107 distributed on both sides of the aluminum housing 1, and through these screw holes and screws 6 the blocking The board 5 is fixedly installed on both sides of the aluminum casing 1, and the baffle 5 can prevent external dust from entering the inside of the cover body 103, causing damage to the LED lamp.

In order to fix the LED light bar conveniently, a mounting bracket 7 is provided at the heat sink 101 on the upper part of the aluminum housing 1 .

The utility model uses LED as the light source, wherein the LED is close to the aluminum extruded circuit board, and the aluminum extruded circuit board is connected with the heat sink through the heat conduction substrate. When the LED is working, the heat generated by the LED heat source can be conducted through the external heat dissipation plate. Going out, it solves the heat dissipation problem of high-power LED in the application.

The LED strip light with heat dissipation function provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the utility model. The description of the above examples is only for helping Understand the method of the utility model and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation and scope of application. In summary, this description The content should not be construed as limiting the utility model.

Claims (6)

1. A LED strip light with heat dissipation function, comprising an aluminum housing (1), a PCB (2) and a high-power LED (3) welded on the PCB (2), characterized in that: the aluminum The housing (1) is made as a whole, consisting of three parts: heat sink (101), heat conduction substrate (102) and cover (103), wherein heat sink (101) is distributed on the upper surface of heat conduction substrate (102) along the axial direction, In addition, an air channel is provided between adjacent heat sinks (101); the cover body (103) is axially located on both sides of the lower end of the heat conduction substrate (102), and an opening is formed directly below the cover body (103), and the opening Closed by a tempered glass panel (4). 2. The LED strip light with heat dissipation function according to claim 1, characterized in that: the PCB board (2) is fixedly installed on the lower surface of the heat conduction substrate (102) along the axial direction, and is connected with the heat conduction substrate (102) ) in close contact with the lower surface. 3. The LED strip light with heat dissipation function according to claim 1, characterized in that: the tempered glass plate (4) is bonded to the inner wall (104) at the opening of the cover body (103) by glue. 4. The LED strip light with heat dissipation function according to claim 1, characterized in that baffles (5) are fixedly installed on both radial sides of the aluminum casing (1). 5. The LED strip light with heat dissipation function according to claim 1, characterized in that: the aluminum casing (1) is further provided with a mounting bracket (7). 6. The LED strip light with heat dissipation function according to claim 1, characterized in that: the aluminum casing (1) is also provided with a power conversion device (8), through which the power conversion device (8) can Convert external AC power to DC power for LED work.

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