CN102865484A - Integrated compact LED lamp - Google Patents

Abstract

The invention discloses an integrated compact LED lamp, which comprises a lamp body and a radiator, wherein the lamp body and the radiator are integrally formed, the radiator is positioned at the inner side of the lamp body, the number of parts and the weight of a product are reduced, the processing, surface treatment, assembly, transportation and other costs are also reduced, the lamp body and the radiator integrally form a large radiator, the structure has the advantages of integration and smallness, a chimney with a perfect chimney effect is formed between radiating fins of the radiator, the radiating efficiency is very high, the radiating effect is ideal, the safety performance is high, the volume of the LED lamp can be small and exquisite under the condition of meeting the radiating condition, and the requirements of the LED lamp decoration industry on the products are met.

Description

All-in-one compact LED light

technical field

The invention relates to an LED lighting lamp. the

Background technique

LED lamps will generate a lot of heat during operation. In order to dissipate the heat in time, existing LED lamps are equipped with radiators. Referring to Fig. 1, the LED lamp in the prior art is mainly composed of three parts: a lamp body A, a radiator B and a light source PCB board C. The lamp body and the radiator are independent parts, and the radiator is placed inside the lamp body. The contact area between the radiator and the lamp body is small, and even the radiator does not contact the lamp body (because once there is contact, it is not easy to assemble), so the lamp body wraps the radiator, forming the effect of a thermos bottle, which is not conducive to the timely dissipation of heat. In order to maintain the heat dissipation area of the radiator, the lamps and lanterns will be relatively large. If the lamps and lanterns are to be kept small, active heat dissipation is required, that is to say, forced heat dissipation must be carried out by means of fans and similar functional parts. Such components are easy to lose their functions due to the aging of the components and the influence of environmental dust. At this time, it is easy to cause sudden death of the lamp. If the power supply device of the lamp is not over-temperature protected at this time, it is easy to cause a short circuit or even cause a fire. Therefore, the current LED lamps want to It is an urgent problem in the LED lighting industry to be compact and avoid sudden death or short circuit. the

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides an LED lamp with few parts, low production and transportation costs, small size, high safety performance and ideal heat dissipation effect. the

The technical solution adopted by the present invention to solve its technical problems is:

An integrated compact LED lamp includes a lamp body and a radiator, the lamp body and the radiator are integrally formed, and the radiator is located inside the lamp body.

As a further improvement of the present invention, the outer wall of the lamp body can also be provided with peripheral cooling fins. This structure is added for the use of a larger wattage light source. If the wattage of the light source is required to be small, this does not need Provide peripheral cooling fins. the

The light source PCB board of the LED lamp of the present invention is installed on the heat sink. the

The first structure of the heat sink is: the inside of the heat sink is integrally die-cast to form a heat collecting and dividing block, and the light source PCB board is attached to the heat collecting and dividing block. In order to enhance the heat dissipation effect, the light source A heat-conducting copper sheet is arranged between the PCB board and the heat-collecting equalizing block. the

The second structure of the heat sink is: the center of the heat sink is provided with a cavity, and a heat-conducting copper sleeve is installed in the cavity, and the light source PCB board is attached to the end surface of the heat-conducting copper sleeve. The side wall of the heat-conducting copper sleeve is provided with an axial gap. The heat-conducting copper sleeve is molded from a piece of copper sheet. After the heat-conducting copper sleeve is assembled, an aluminum rod is driven into the center of the heat-conducting copper sleeve. The heat conduction copper sleeve is closely matched with the cavity wall to facilitate heat conduction. the

The beneficial effects of the present invention are: the lamp body and the radiator are integrally formed, which reduces the number of components and the weight of the product, and also reduces the costs of processing, surface treatment, assembly, transportation, etc., and the lamp body and the radiator as a whole also form a large Radiator, in addition to the advantages of small and compact integration, the heat dissipation fins of the radiator form a chimney with a perfect chimney effect, which has very high heat dissipation efficiency, ideal heat dissipation effect, and high safety performance. , can make the size of the LED light compact, in line with the requirements of the LED lighting industry for such products. the

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. the

Fig. 1 is the structural exploded view of LED lamp in the prior art;

Fig. 2 is a schematic cross-sectional structural view of the first embodiment of the lamp body and the radiator;

Fig. 3 is a schematic cross-sectional structure diagram of a second embodiment of the lamp body and the radiator;

Fig. 4 is a structural schematic diagram of a heat-conducting copper sleeve;

Fig. 5 is a schematic perspective view of the third embodiment of the lamp body and the radiator;

Fig. 6 is a top view of the lamp body and radiator shown in Fig. 5 .

Detailed ways

Referring to Fig. 2 and Fig. 3, an integrated compact LED lamp includes a lamp body 1, a heat sink 2 and a light source PCB board 3. The heat sink is mainly composed of heat dissipation fins 10, which are in the shape of a flat plate. The lamp body 1 and the radiator 2 are integrally die-casted by die-casting technology or integrally injection-molded by powder metallurgy technology. The radiator 2 is located inside the lamp body 1, and the material is aluminum alloy (ADC12). The lamp body 1 is provided with a threading hole 5. The connecting wires of the light source PCB board 3 pass out from the threading hole, and are connected to an external power supply. the

Referring to Fig. 1, the first implementation structure of the radiator 2 is: a heat-collecting and dividing block 4 is integrally die-casted inside the radiator 2, and the heat-collecting and dividing block 4 has a flat front and an arc-shaped depression on the back. The heat energy can be transmitted out most quickly and effectively in the shape similar to the arc-shaped depression, and at the same time, it has an air convection effect similar to the chimney effect. The light source PCB 3 is attached to the front of the heat collecting and dividing block 4 , in order to enhance the effect of heat dissipation, a heat conducting copper sheet 6 is arranged between the light source PCB 3 and the heat collecting and dividing block 4 . the

The heat energy generated by the light source PCB board 3 quickly dissipates the heat to the surroundings through the heat-conducting copper sheet 6, and then evenly conducts it backwards to the heat-collecting uniform block 4, and then distributes the heat-collecting uniform block 4 to the heat-dissipating fins 10. And the heat is exported through the fins, which is conducive to the uniform temperature change of the heat dissipation components and facilitates the rapid dissipation of heat. the

One end of the radiating fin 10 is connected to the heat-collecting uniform block, and the joint between the heat-dissipating fin and the heat-collecting uniform block adopts a circular-arc chamfering structure, and the connection between the radiating fin and the lamp body also adopts a circular-arc chamfering structure. The radius of the arc chamfer is usually R≧3mm to meet the needs of heat dissipation, and usually R≧5mm will have a better heat dissipation effect. The structure of this arc chamfer is very important, and the heat guided to the fins is in the process of conduction It starts to conduct heat to the air, and the remaining heat is then conducted to the lamp body. Similarly, the arc chamfers connected between the fins and the lamp body are also very important. These arc chamfers are conducive to the heat transfer efficiency. the

Referring to Fig. 2 and Fig. 4, a cavity 8 is arranged in the center of the heat sink 2, and a heat-conducting copper sleeve 7 is installed in the cavity 8, and the light source PCB board 3 is attached to the end surface of the heat-conducting copper sleeve 7 superior. the

The side wall of the heat-conducting copper sleeve 7 is provided with an axial gap 9. After the heat-conducting copper sleeve is assembled, an aluminum rod is driven into the center of the heat-conducting copper sleeve. The aluminum rod can forcibly connect the heat-conducting copper sleeve and the cavity wall. Tight fit for easy heat transfer. If the copper is to be made into a closed circular sleeve, the difficulty of stretching is too high. In this embodiment, the heat-conducting copper sleeve 7 is formed by molding a piece of copper sheet, and the axial gap 9 is formed by both sides of the copper sheet. Processing, and the expansion coefficient of copper is different from that of aluminum. If it is a closed copper sleeve, the heat-conducting copper sleeve will withdraw after thermal expansion and contraction, so a gap is made to absorb the displacement caused by thermal expansion and contraction. the

Because the thermal conductivity of copper is very high, the heat source can quickly conduct heat through the heat-conducting copper sleeve to the entire heat-conducting copper sleeve in the first step, and the second step is to conduct heat to the cavity wall through the heat-conducting copper sleeve. Then conduct to the heat collecting uniform block 4, the cavity wall is another heat collecting uniform block, and then redistribute the heat to each fin of the radiator through the heat collecting uniform block, and then The heat is quickly conducted to the outer wall of the lamp through the fins, the heat conduction distance is short and the efficiency is high, and the heat dissipation effect is ideal. the

Referring to Fig. 5 and Fig. 6, in order to increase the heat dissipation effect, peripheral heat dissipation fins 11 are also provided on the outer wall of the lamp body 1, and the peripheral heat dissipation fins 11 are integrally formed with the lamp body, and the peripheral heat dissipation fins 11 increase the conduction The area and heat dissipation area are conducive to the timely distribution of heat. the

The lamp body and the radiator are integrally formed, which reduces the number of parts and the weight of the product, and also reduces the cost of processing, surface treatment, assembly, transportation, etc. The lamp body and the radiator are closely connected, the contact area is large, and the lamp body and the radiator The whole also constitutes a large radiator. In addition to the advantages of compact integration, this structure forms a chimney with a perfect chimney effect between the fins of the radiator. The heat dissipation efficiency is very high, the heat dissipation effect is ideal, and the safety performance is high. Under the condition of meeting the heat dissipation conditions, the volume of the LED lamp can be made small, which meets the requirements of the LED lighting industry for such products. the

Claims (8)

1. An integrated compact LED lamp, comprising a lamp body (1) and a radiator (2), characterized in that the lamp body (1) and the radiator (2) are integrally formed, and the radiator (2) Located inside the lamp body (1). 2. The LED lamp according to claim 1, characterized in that the outer wall of the lamp body (1) is provided with peripheral cooling fins (11). 3. The LED lamp according to claim 1 or 2, characterized in that it further comprises a light source PCB board (3), and the light source PCB board (3) is installed on the heat sink (2). 4. The LED lamp according to claim 3, characterized in that the inside of the heat sink (2) is integrally die-cast to form a heat collecting and dividing block (4), and the light source PCB board (3) is attached to the On the heat collecting block (4). 5. The LED lamp according to claim 4, characterized in that a heat conducting copper sheet (6) is arranged between the light source PCB board (3) and the heat collecting and dividing block (4). 6. The LED lamp according to claim 3 or 4, characterized in that a cavity (8) is arranged in the center of the heat sink (2), and a heat-conducting copper sleeve (7) is installed in the cavity (8) , the light source PCB board (3) is attached to the end surface of the heat-conducting copper sleeve (7). 7. The LED lamp according to claim 6, characterized in that an axial notch (9) is provided on the side wall of the heat-conducting copper sleeve (7). 8. The LED lamp according to claim 7, characterized in that the heat-conducting copper sleeve (7) is molded from a piece of copper sheet.

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