WO2007012240A1 - A led lamp with metal cooling panels - Google Patents

Abstract

A LED lamp with metal cooling panels comprises metal cooling panels (1), PCBs (2) and LEDs (3). A plurality of LEDs (3) are provided on the two metal cooling panels (1) between which the PCB (2) is sandwiched in, and each LED is connected with the side ends of the two metal cooling panel so as to constitute a line-shaped LEDs illumination unit. The line-shaped LEDs lamp or a surface LEDs lamp is formed by a series of line-shaped LEDs illumination units in series or in parallel.

Description

 LED lighting lamp with metal heat sink

Technical field

 The present invention relates to an LED illuminating lamp, and more particularly to an LED illuminating lamp with a metal heat sink.

Background technique

 LEDs (Semiconductor Light Emitting Diodes) are the third generation of semiconductor illumination sources following incandescent and fluorescent lamps. Experts at home and abroad predict that semiconductor lighting will be one of the largest and most active high-tech industries in the 21st century and is of great significance in terms of economic competition and national security. With the advent of red, green, blue and white LED lighting, a battle for the commanding heights of semiconductor lighting in emerging industries has started around the world.

 LED lighting has the advantages of high light efficiency, high light quality, low energy consumption, long life, reliable and durable, flexible application, safety, environmental protection, short response time, etc., which will surely become the history of lighting after incandescent and fluorescent lamps. An iconic qualitative leap.

 At present, LED lighting is formed by clustering thousands of individual LEDs. Specifically, as shown in FIG. 1 and FIG. 2, the LED illumination lamp is composed of a printed circuit board 2, an LED 3, a lamp cap 4, a casing 5, and a wire 6. The lamp cap 4, the casing 5, and the printed circuit board 2 are sequentially connected, and the printed circuit board 2 is connected. LED3 is set on it. Moreover, all LEDs 3 are line and face packages. The heat dissipation of the LED lighting is solved by the heat dissipation of the copper on the double-sided printed circuit board 2. Since the copper piece has a limited area and is sealed in the outer casing 5, the heat dissipation effect is extremely poor, which leads to aging of the packaging material. The brightness of the light is reduced. The difficulty in solving the heat dissipation problem has been quite large, which seriously restricts the improvement of the power of the LED lighting.

Summary of the invention It is an object of the present invention to overcome the problems and deficiencies of the prior art and to provide an LED illuminating lamp with a metal heat sink.

 The object of the present invention is achieved by the following measures: an LED lighting lamp with a metal heat sink, comprising a metal heat sink 1, a printed circuit board 2, an LED 3; characterized in that the two sides of the printed circuit board 2 are respectively connected There is a metal heat sink 1 , LED 3 is arranged on two metal heat sinks 1 to obtain a unit linear LED illumination lamp; a plurality of unit linear LED illumination lamps are connected in series or in parallel, and are combined into a line shape or a surface shape. LED lighting.

In the above aspect, the linear LED illumination lamp 1 comprises a metallic heat sink plate, the printed circuit board 2, LED3, the housing 5, a wire _6; elongated in a package housing 5, is provided with an elongated printed circuit On the board 2, an elongated metal heat sink 1 is connected to both sides of the printed circuit board 2, and LEDs 3 are disposed on the two elongated metal heat sinks 1, and the printed circuit board 2 is externally connected to the power source via the wires 6.

 In the above technical solution, the series linear LED illumination lamp is a linear LED illumination lamp having a plurality of units connected in series in a long-shaped package casing 5, and the printed circuit board 2 of each unit is externally connected to a power source.

 In the above technical solution, in a square or circular package casing 5, the metal heat dissipation plate 1 and the printed circuit board 2 are arranged in phase, and then LEDs 3 are disposed on each two adjacent metal heat dissipation plates 1 to obtain A face-shaped LED illuminator, either square or circular.

 In the above technical solution, the LED 3 is either an LED patch or an LED lamp.

 In the above technical solution, the metal heat sink 1 is either copper or iron.

 The LED lighting lamp with metal heat sink of the invention works on the principle of:

The two poles of the LED 3 LED are respectively connected (such as soldered) to dissipate heat in two adjacent metals. On the board 1, the metal heat sink 1 and the double-sided printed circuit board 2 are soldered together by soldering, and the metal heat sink 1 and the double-sided printed circuit board 2 are electrically connected.

 When the power source is connected to the double-sided printed circuit board 2 through the wire 6, and the circuit is rectified and transformed, the metal heat sink 1 is energized, thereby causing the LED 3 to emit light.

 The present invention has the following advantages and positive effects:

 1 heat dissipation is good. An LED 3 is disposed between two adjacent metal heat dissipation plates 1. The metal heat dissipation plate 1 has good electrical conductivity and good heat dissipation effect, so that the LED 3 emits light, thereby improving its luminous efficiency and prolonging its service life.

 2 power is large. Because the heat dissipation of the metal heat sink 1 is good, the power of the LED lighting is made possible.

 3 varieties of colors. The invention has the basic structure of linear shape and surface shape, so that the LED illumination lamp can be made into many shapes and a variety of color varieties to meet various social needs. DRAWINGS

 Figure 1 is a structural view of a conventional linear LED lighting lamp;

 2 is a structural diagram of a conventional planar LED lighting lamp;

 Figure 3 is an exploded view of the main components of the present invention;

 Figure 4 is a front view showing the structure of the present invention;

 Figure 5 is a left side view of the structure of the present invention;

 6 is an embodiment of the present invention: an effect diagram of a linear LED lighting lamp;

FIG. 7 is a second embodiment of the present invention: an illumination effect diagram of a series linear LED lamp; FIG. 8 is a third embodiment of the present invention: an effect diagram of an aspect LED illumination lamp; FIG. 9 is a fourth embodiment of the present invention: a round surface LED Lighting renderings. In the figure: 1. Metal heat sink, 2. Printed circuit board, 3. LED, 4. Lamp, 5. Housing, 6. Wire.

detailed description

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of an LED illuminating lamp with a metal heat sink according to the present invention will be described in detail below with reference to the accompanying drawings, but they are not intended to limit the present invention, and the advantages of the present invention will become more apparent and understood.

 1, linear LED lighting

 As shown in Figure 6, the structure of the linear LED lighting is:

 The utility model is composed of a metal heat dissipation plate 1, a printed circuit board 2, an LED3, a casing 5, and a wire 6. In an elongated package casing 5, an elongated printed circuit board 2 is disposed on both sides of the printed circuit board 2 A strip-shaped metal heat sink 1 is soldered, and LEDs 3 are disposed on the two elongated metal heat sinks 1, and the printed circuit board 2 is externally connected to the power source via the wires 6.

 The above linear LED lighting is similar to a linear fluorescent lamp.

 2, series linear LED lighting

 As shown in Figure 7, the structure of the serial linear LED lighting is:

 It consists of a metal heat sink 1, a printed circuit board 2, an LED3, a casing 5, and a wire 6; it is modified on the basis of the linear LED lamp of Fig. 6 above.

 Specifically, in a long package casing 5, a plurality of unit linear LED lamps are connected in series, and the printed circuit board 2 (A, B, C, D, etc.) of each unit is externally connected to a power source.

Each unit can be set with LED3 of different colors, different model specifications and different powers. Thereby a colorful series linear LED illumination lamp is obtained. Since each unit's printed circuit board 2 (A, B, C, D, etc.) has its own external power supply, even if one unit fails, it will not affect the operation of other units.

 3, surface LED lighting

 The structure of the surface LED lighting is:

 Arranging the above linear LED illumination lamps in parallel;

 Specifically, it consists of a metal heat sink 1, a printed circuit board 2, an LED 3, a lamp cap 4, a casing 5, and a wire 6;

 In a square or circular package casing 5, the metal heat sink 1 and the printed circuit board 2 are arranged one after another, and then LEDs 3 are disposed on each of two adjacent metal heat sinks 1, thereby obtaining a planar LED illumination lamp. , or square, as shown in Figure 8; or round, as shown in Figure 9.

 4. The LED 3 is either an LED patch or an LED lamp.

 5. The metal heat sink 1 is either copper or iron.

 It should be noted that those skilled in the art can make appropriate changes and modifications to the present invention without departing from the spirit and scope of the invention.

Claims

Claim  1. An LED lighting lamp with a metal heat sink, comprising a metal heat sink (1), a printed circuit board (2), and an LED (3); characterized in that two sides of the printed circuit board (2) are respectively connected A metal heat sink (1) is provided with LEDs (3) on two metal heat sinks (1) to obtain a unit of linear LED illumination lamps; multiple units of linear LED illumination lamps are connected in series or in parallel, or combined or It is a linear or face-shaped LED illuminator.  2. The LED illuminating lamp with a metal heat sink according to claim 1, wherein the linear LED illuminating lamp comprises a metal heat sink (1), a printed circuit board (2), and an LED (3) , a casing (5), a wire (6); in an elongated package casing (5), an elongated printed circuit board (2) is provided, and the two sides of the printed circuit board (2) are respectively connected to each other. A strip-shaped metal heat sink (1) is provided with LEDs (3) on the two elongated metal heat sinks (1), and the printed circuit board (2) is externally connected via a wire (6).  3. An LED illuminating lamp with a metal heat sink according to claim 2, wherein: the series linear LED illuminating lamp is in a long strip-shaped package casing (5), and a plurality of units are linearly connected in series. LED lighting, the printed circuit board of each unit (2) is externally connected to the power supply.  4. An LED illuminating lamp with a metal heat sink according to claim 2, wherein: in a square or circular package casing 5, the metal heat sink 1 and the printed circuit board 2 are arranged one after another. LEDs are placed on every two adjacent metal heat sinks (1) (3), get a face-shaped LED lighting, either square or round. 5. An LED illuminating lamp with a metal heat sink according to claim 1, wherein the LED (3) is either an LED patch or an LED lamp. An LED lighting lamp with a metal heat sink according to claim 1, wherein