CN203131507U - LED lamp with hollow side convection heat dissipation - Google Patents

Abstract

The utility model provides a cavity side convection's LED lamp relates to the LED lamp field, and in particular to can realize high-efficient radiating LED lamp through air convection. The LED lamp comprises a lampshade, a radiator, an LED, a PCB, a power supply, a lamp cup and a lamp holder, wherein the LED is arranged on the PCB, the PCB is arranged on the radiator, the lampshade is arranged outside the LED, the radiator is connected with the lamp cup through a fixing column, the lamp cup is connected with the lamp holder, the power supply is arranged in the lamp cup, the radiator is of a hollow columnar structure, two ends of the radiator are blocked to form a hollow cavity, and a plurality of air holes are formed in the radiator. The utility model discloses in, have a hollow column radiator, its hollow part is a cavity, and the side heat dissipation is realized through the bleeder vent to the air when inside circulation, reaches quick radiating effect.

Description

LED lamp with hollow side convection heat dissipation

technical field

The utility model relates to the field of LED lamps, in particular to a novel LED lamp with hollow convection and side convection heat dissipation.

Background technique

In the LED field, the heat dissipation problem has been troubled by many R&D personnel. Due to the long working hours of the LED, the space for the lamp body package is getting smaller and smaller, and the heat dissipation problem will become more prominent. Traditional LED lamps are equipped with heat sinks on the periphery of the lamp cup to dissipate heat. , and for LED lamps, the power supply is essential. The general power supply is set on the lamp holder, and the distance between the lamp holder and the LED chip is very short, which are generally separated by a fixed plate. When the heat generated by the chip needs to be dissipated through the heat sink, the heat will pass through the lamp cap. The power supply installed on the lamp cap will generate a certain amount of heat due to long-term work, and the heat of the LED chip may reduce the life of the power supply. In addition, for some long LED lamp tubes, in order to improve the heat dissipation effect, air convection will be used to dissipate heat. To achieve the effect of heat dissipation, but these structures cannot be disassembled, and cannot be replaced. Moreover, the long flow path of hot air convection heat dissipation is not conducive to heat dissipation.

Utility model content

The technical problem to be solved by the present invention is to provide an LED lamp with hollow side convection heat dissipation, which has a good heat dissipation effect, is easy to install, can be disassembled and installed, and realizes air side convection heat dissipation.

Achieve the above-mentioned purpose through the following technical solutions:

An LED lamp with convection heat dissipation at the hollow side, comprising a lampshade, a radiator, an LED, a PCB board, a power supply, a lamp cup and a lamp holder, the LED is arranged on the PCB board, and the PCB board is arranged on the radiator, The lampshade is arranged outside the LED, the radiator is connected to the lamp cup through the fixing column, the lamp cup is connected to the lamp cap, the power supply is set in the lamp cup, and the radiator is hollow The two ends of the heat sink are blocked to form a hollow cavity, and the heat sink is provided with a number of air holes.

The lampshade includes a top lampshade and a side lampshade, and the side lampshade includes several arc-shaped lampshade strips, and the arc-shaped lampshade strips are engaged with the edge of the top lampshade to form a cylindrical side lampshade. Both sides of the arc-shaped lampshade strip are provided with bending parts, and the bending parts are bent toward the inside of the arc-shaped lampshade strip. The outer surface of the radiator is evenly distributed with heat dissipation grooves, and the heat dissipation grooves are recessed inwardly relative to the outer surface of the radiator. Air vents are arranged on the heat sink. Two recesses with openings facing outward and two recesses with opposite openings are arranged symmetrically on the part of the radiator between adjacent heat dissipation grooves. The two sides of the PCB board respectively protrude into the two notches with opposite openings, the two notches with opposite openings fix the PCB board, and the bending parts of the LED lampshade respectively protrude into the The two notches with openings facing outwards, the arc-shaped lampshade strips are fixed on the radiator.

The beneficial effects of the utility model are: a hollow columnar radiator is provided, and the radiator forms a hollow cavity, and the heat in the cavity realizes heat exchange with the outside through the vent holes, thereby improving the heat dissipation efficiency. There are two ventilation holes to speed up the heat exchange and achieve the effect of rapid heat dissipation. In addition, a plurality of heat dissipation grooves are set, and the area for heat dissipation can also be increased by increasing the size.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is the radiator structure of the present utility model and its partially enlarged structural diagram;

Fig. 3 is an embodiment of the utility model in which both ends of the radiator are blocked.

In the figure 1. Lampshade; 2. Radiator; 3. LED; 4. PCB board; 5. Power supply; 6. Lamp cup; 7. Lamp holder; Top lampshade; 12. Side lampshade; 13. The notch with the opening facing outward; 14. The opening opposite to the opening; 15. The bending part.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

The directional terms mentioned in the following embodiments, such as "up, down, left, right" are only referring to the directions of the drawings, therefore, the directional terms used are for illustration and not for limiting the present invention.

As shown in Figure 1, a LED lamp with hollow side convection heat dissipation includes a lampshade 1, a radiator 2, an LED 3, a PCB board 4, a power supply 5, a lamp cup 6 and a lamp holder 7, and the LED 3 is arranged on the PCB board 4, the PCB board 4 is set on the heat sink 2, the lampshade 1 is set outside the LED 3, the heat sink 2 is connected to the lamp cup 6 through the fixing column 8, and the lamp cup 6 is connected to the lamp holder 7 , the power supply 5 is set in the lamp cup 6, the radiator 2 is a hollow columnar structure, the two ends of the radiator 2 are blocked to form a hollow cavity, in this embodiment , as shown in FIG. 3 , one end of the radiator 2 is blocked by the PCB board 4 arranged on the top, and the other end is blocked by the fixing column 8 , and a plurality of ventilation holes 9 are arranged on the radiator 2 . Since the radiator 2 forms a cavity structure and blocks both ends, the flow of air exchanges heat through the vent holes to realize side convection heat dissipation.

The lampshade 1 includes a top lampshade 11 and a side lampshade 13. The side lampshade 13 includes several arc-shaped lampshade strips, and the arc-shaped lampshade strips are engaged with the edge of the top lampshade 11 to form a cylindrical Side light shade 13. It can be seen from Figure 1 that the entire lamp body is a cylinder, and its side 360 emits light, so its PCB board 4 and lampshade 1 are arranged for a circle, and each lampshade 1 is arranged on both sides of the arc-shaped lampshade strip. The bending portion 15, the bending portion 15 is bent toward the inside of the arc-shaped lampshade strip. As shown in FIG. 2 , heat dissipation grooves 10 are evenly distributed on the outer surface of the radiator 2 , and the heat dissipation grooves 10 are recessed inwardly relative to the outer surface of the radiator 2 . Ventilation holes 9 are arranged on the heat sink 10 . Two notches 13 with openings facing outward and two notches 14 with opposite openings are arranged symmetrically on the parts of the radiator 2 between adjacent cooling grooves 10 . It can be seen from the enlarged view of FIG. 2 that the two sides of the PCB board 4 extend into the two opposite openings 14 respectively, and the two openings opposite the notches 14 fix the PCB. The plate 4 , the bent portion 15 of the lampshade 1 protrudes into the two notches 13 with openings facing outward, and the arc-shaped lampshade strip is fixed on the radiator 2 .

The curved arrow shown in Figure 2 is the flow direction of the air. It can be seen from the figure that the heat generated by the top PCB board 4 and the side PCB board 4 will flow in the cavity, and when it flows to the multiple air holes in the middle 9, it can flow out from the vent hole 9, which can accelerate the speed of heat dissipation. Simultaneously, the PCB board 4 in the utility model utilizes the notch 14 that the opening is opposite to engage the PCB board 4, so that the PCB board 4 can be easily disassembled, and the lampshade 1 is also fixed by the notch 13 with the opening outward, and its lampshade 1 is also detachable.

The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the scope of the technical solution of the present invention.

Claims (7)

1. A LED lamp with hollow side convection heat dissipation, comprising a lampshade, a radiator, an LED, a PCB board, a power supply, a lamp cup and a lamp holder, the LED is arranged on the PCB board, and the PCB is arranged on the radiator board, the LED is provided with a lampshade, the radiator is connected to the lamp cup through the fixing column, the lamp cup is connected to the lamp holder, and the power supply is set in the lamp cup, it is characterized in that the The heat sink is a hollow columnar structure, the two ends of the heat sink are blocked to form a hollow cavity, and a number of ventilation holes are arranged on the heat sink. 2. The LED lamp with hollow side convection and heat dissipation according to claim 1, wherein the lampshade includes a top lampshade and a side lampshade, the side lampshade includes several arc-shaped lampshade strips, and the arc The shaped lampshade bar engages with the edge of the top lampshade to form a cylindrical side lampshade. 3. The LED lamp with hollow side convection and heat dissipation according to claim 2, characterized in that, there are bending parts on both sides of the arc-shaped lampshade strip, and the bending part faces the inside of the arc-shaped lampshade strip. bend. 4. The LED lamp with hollow side convection heat dissipation according to claim 3, characterized in that, heat dissipation grooves are evenly distributed on the outer surface of the heat sink, and the heat dissipation grooves are opposite to the outer surface of the heat sink Inner depression. 5 . The LED lamp with hollow side convection heat dissipation according to claim 4 , wherein the heat dissipation grooves are provided with ventilation holes. 6 . 6. The LED lamp with hollow side convection and heat dissipation according to claim 4, characterized in that two recesses with outward openings are symmetrically arranged on the part of the heat sink between adjacent heat dissipation grooves and the two openings are opposite to each other. the notch. 7. The LED lamp with hollow side convection heat dissipation according to claim 6, characterized in that, both sides of the PCB board extend into the notches opposite to the two openings, and the two openings The opposite notches fix the PCB board, the bent parts of the lampshade respectively extend into the two notches with openings facing outward, and the arc-shaped lampshade bars are fixed on the radiator.

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