CN202419234U - led lights - Google Patents

Abstract

The utility model discloses a LED lamp, including lamp shade, heat conduction substrate, radiator unit and a plurality of LED lamp, the lamp shade with radiator unit connects formation airtight space sealedly, place in the LED lamp in the airtight space and install in on the heat conduction substrate, the heat conduction substrate with radiator unit one side thermal contact, radiator unit includes the heating panel, the heating panel has heat conduction face and cooling surface, the cooling surface upwards extends a plurality of heat dissipation posts, the heat dissipation post is cavity tubular structure and upper end and outside intercommunication, a plurality of ventilation openings have been seted up to the lateral wall of heat dissipation post. The utility model discloses LED lamp has illuminating effect good, quick advantage dispels the heat.

Description

led lights

technical field

The utility model relates to a lighting device, in particular to an LED lamp with good lighting effect and rapid heat dissipation.

Background technique

Street lamps are an important part of urban lighting. Traditional street lamps often use high-pressure sodium lamps. High-pressure sodium lamps emit 360 degrees of light. The disadvantage of large light loss has caused a huge waste of energy. At present, the global environment is deteriorating day by day, and all countries are developing clean energy. With the rapid growth of the national economy, the contradiction between energy supply and demand in my country has become increasingly prominent, and there has been a serious shortage of power supply. Energy saving is an urgent problem to be solved at present. Therefore, the development of new high-efficiency, energy-saving, long-life, high color rendering index, and environmentally friendly LED lights is of great significance to urban lighting energy saving. LED lamps are semiconductor lighting lamps. It is a high-efficiency solid-state light source that can emit light with weak electric energy based on the semiconductor PN junction. It has the characteristics of environmental protection, pollution-free, low power consumption, high luminous efficiency, and long life. Therefore, LED lights will become the energy-saving transformation of road lighting. best choice.

Since the LED lamp is installed inside the closed body, a large amount of heat will be generated in the lamp body if it is turned on for a long time. If it is not discharged in time, the inside of the LED lamp will generate high temperature, which is very easy to burn out the internal components. Therefore, the LED lamp needs to be equipped with a heat sink. components to dissipate heat. Existing heat dissipation technologies for LED lamps generally adopt the heat conduction plate method, usually using a piece of copper plate, which is actually a uniform temperature plate, and evenly dissipates the heat source; there are also heat sinks installed to dissipate heat, but the contact area between the heat sink and the air is relatively small. Small, the heat dissipation is not ideal. If the heat sink is added, although the heat dissipation effect will be improved, it will increase the weight of the street lamp, which will easily cause safety hazards to the road; in addition, there are also heat dissipation by installing a heat dissipation fan, but its structure is complex and reliable. Low reliability and high cost are not conducive to widespread adoption.

Utility model content

The purpose of the utility model is to provide an LED lamp with good lighting effect and rapid heat dissipation.

In order to achieve the above object, the utility model provides an LED lamp, which includes a lampshade, a heat-conducting substrate, a heat dissipation assembly and several LED lamps, the lampshade is sealedly connected with the heat dissipation assembly to form a closed space, and the LED lamp is built into the In the enclosed space and installed on the heat conduction substrate, the heat conduction substrate is in thermal contact with one side of the heat dissipation assembly, the heat dissipation assembly includes a heat dissipation plate, the heat dissipation plate has a heat conduction surface and a heat dissipation surface, the heat dissipation A plurality of radiating columns extend upwards, the radiating columns are in a hollow tubular structure and their upper ends communicate with the outside, and the side walls of the radiating columns are provided with a number of air vents.

Preferably, the heat dissipation column is cylindrical.

Preferably, the vents are slots opened along the length direction of the heat dissipation column. By opening the slit, the outside world can communicate with the inside of the heat dissipation column, and it is convenient for cooling air to enter the heat dissipation column to cool it.

Specifically, the number of the slits is two, and they are located on opposite sides of the heat dissipation columns. By opening two slits, external cooling air can quickly enter the heat dissipation column, thereby achieving rapid cooling.

Preferably, the LED lamp further includes a reflector lampshade, the surface of the reflector lampshade is concavely provided with several light grooves, the light grooves expand from the inside to the outside, and the inner side walls of the light grooves are arc-shaped. The LED lamp is installed in the lamp groove. By adding the reflective lampshade and making the lamp trough an arc-shaped structure, the arc surface of the lamp trough is used to reflect the light in the same direction, so that the light emitted by the LED lamp is more uniform, concentrated and brighter .

Specifically, the inner wall of the light trough is provided with several reflective sides, and the reflective sides are adjacent to each other to form the light trough.

Preferably, a plurality of arc-shaped lenses protrude from the outer surface of the lampshade, and the LED lights correspond to the lenses one by one. By utilizing the refraction effect of the lens on the light, the light can be diffused to the surrounding when it is emitted outward, so that the irradiation range is wider and the illumination area is increased.

Preferably, the LED lamp further includes a waterproof ring, and a waterproof groove is provided on the periphery of the heat-conducting surface of the heat dissipation plate, and the waterproof ring is accommodated in the waterproof groove, and the waterproof ring can prevent moisture from flowing from the The installation gap of the heat sink and lampshade enters. Since the cooling plate cooperates with the lampshade to form an internal space for accommodating the LED lamp, there will be gaps at the connection between the cooling plate and the lampshade, and moisture can easily enter the internal space through these gaps, thereby affecting the use of the LED lamp Therefore, the waterproof groove is provided to accommodate the waterproof ring, which can effectively prevent water from entering and prolong the service life of the LED lamp.

Preferably, the LED lamp further includes a waterproof wire cover, and the waterproof wire cover is hermetically installed on the heat dissipation plate and communicated with the enclosed space. Since the wires need to enter the confined space from the outside to supply power to the LED lamp, moisture can easily enter the confined space through the gaps between the wires. Therefore, by setting the waterproof wire cover, these wires can be passed through uniformly. The waterproof wire cover enters the enclosed space behind, thereby preventing external moisture from entering and effectively protecting internal components.

Preferably, the LED lamp further includes a plurality of fixing clips, and a plurality of engaging grooves are correspondingly provided around the heat dissipation surface of the heat dissipation plate and the outer surface of the lampshade, and the two ends of the fixing clips are elastically engaged with the The heat sink and the engaging groove of the lampshade. Since the lampshade and the heat dissipation plate are usually simply fixedly connected, the lampshade is very easy to fall off downwards, which brings danger to passers-by. Therefore, the lampshade is clamped to the heat dissipation plate by the fixing clip so that the lampshade can be installed more firmly and stably, making it safer to use.

Compared with the prior art, because the utility model arranges several heat dissipation columns on the heat dissipation surface of the heat dissipation plate, and arranges the heat dissipation columns into a hollow tubular structure, thereby increasing the contact area with the air, thereby speeding up the contact with the air. The heat transfer of the surrounding air; and the upper end of the heat dissipation column communicates with the outside, and the vent is provided on the side wall, so that the outside world communicates with the interior through the air vent. When the heat dissipation plate dissipates heat, the internal temperature of the heat dissipation column is high, and the gas rises. The external temperature is low, and the gas sinks, thereby forming air convection, and the heat is dissipated as the gas rises, while the cooling air continuously enters through the vents, thereby continuously cooling; the utility model effectively improves the luminous brightness by setting a plurality of LED lights, and The rapid cooling of the heat dissipation assembly is used to enhance the lighting effect of the entire LED lamp and increase the heat dissipation speed, so that the heat dissipation effect is better.

Description of drawings

Fig. 1 is a schematic structural diagram of the LED lamp of the present invention.

Fig. 2 is an exploded schematic view of the LED lamp of the present invention.

Fig. 3 is a structural schematic diagram of the heat dissipation assembly in the LED lamp of the present invention.

Fig. 4 is a structural schematic diagram of the reflective lampshade in the LED lamp of the present invention.

Fig. 5 is a schematic cross-sectional view of the reflective lampshade in the LED lamp of the present invention.

Fig. 6 is a schematic structural view of the lampshade in the LED lamp of the present invention.

Fig. 7 is a cross-sectional view of the LED lamp of the present invention.

Fig. 8 is a structural schematic diagram of the cooling column in the LED lamp of the present invention.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, the LED lamp 100 of the present invention includes a lampshade 1, a thermally conductive substrate 2, a heat dissipation component 3, a reflector lampshade 4, several LED lamps 5, a waterproof ring 6, a waterproof wire cover 7 and Several fixing clips 8, the lampshade 1 and the heat dissipation assembly 3 are hermetically connected to form an airtight space, the LED lamp 5 is built in the airtight space and installed on the heat conduction substrate 2, the heat conduction base The sheet 2 is in thermal contact with one side of the heat dissipation assembly 3, and the heat dissipation assembly 3 includes a heat dissipation plate 31. The heat dissipation plate 31 has a heat conduction surface 31a and a heat dissipation surface 31b. The heat dissipation columns 32 are arranged in an array. The heat dissipation columns 32 are hollow tubular structures with upper ends communicating with the outside. The side walls of the heat dissipation columns 32 are provided with a plurality of air vents 32a.

Specifically, the air vent 32a is a slit 32a opened along the length direction of the cooling column 32 . The number of the slits 32 a is two, and are located on opposite sides of the heat dissipation columns 32 . The two slits 32a divide the radiating column 32 into two semicircular structures, and by opening the two slits 32a, external cooling air can quickly enter the radiating column 32, thereby achieving rapid cooling.

As shown in Figure 4 and Figure 5, the surface of the reflector lampshade 4 is sunken with several light slots 41 arranged in parallel in two rows, the light slots 41 expand from the inside to the outside, and the inner side wall is in the shape of Arc-shaped structure, the LED lamp is installed in the lamp groove 41 . Specifically, the inner sidewall of the lamp trough 41 is provided with four reflective side surfaces 41a, the reflective side surfaces 41a are arc-shaped, and two of the reflective side surfaces 41a are adjacent to each other to enclose the lamp trough 41 . By adding the reflector lampshade 4 and making the lamp groove 41 in an arc-shaped structure, the arc surface of the lamp groove 41 is used to reflect the light in the same direction, so that the light emitted by the LED lamp 5 is more uniform and concentrated , the brightness is higher.

Please refer to FIG. 6 , a plurality of arc-shaped lenses 11 protrude from the outer surface of the lampshade 1 , and the LED lamps 5 correspond to the lenses 11 one by one. Utilizing the refraction effect of the lens 11 on the light, when the light is emitted outward, it can diffuse to the surroundings, so the irradiation range is wider and the lighting area is increased.

Please refer to Fig. 7, the surrounding edge of the heat conduction surface 31a of the heat dissipation plate 31 is provided with a waterproof groove 31c, and the waterproof ring 6 is accommodated in the waterproof groove 31c, and the waterproof ring 6 can prevent moisture from dissipating heat from the heat sink. The installation gap of the board 31 and the lampshade 1 enters. Since the heat dissipation plate 31 cooperates with the lampshade 1 to form an internal space for accommodating the LED lamp 5, there will be gaps at the connection between the heat dissipation plate 31 and the lampshade 1, and moisture can easily enter the interior space through these gaps, thereby The service life of the LED lamp 5 is affected. Therefore, the waterproof groove 31c is provided to accommodate the waterproof ring 6, which can effectively prevent water from entering and prolong the service life of the LED lamp 5.

Please refer to Fig. 1 and Fig. 2, the waterproof wire cover 7 is hermetically installed on the heat dissipation plate 31 and communicated with the confined space, and the waterproof wire cover 7 is used for socketing the wires for supplying power to the LED lamp 5 . Since the wires need to enter the confined space from the outside to supply power to the LED lamp 5, moisture can easily enter the confined space through the gaps between the wires. Therefore, by setting the waterproof wire cover 7, these wires After uniformly passing through the waterproof wire cover 7, they enter the confined space, thereby preventing external moisture from entering and effectively protecting internal components.

The heat dissipation surface 31b of the heat dissipation plate 31 and the outer surface of the lampshade 1 are respectively provided with a plurality of engaging grooves 3a, 1a correspondingly, and the two ends of the fixing clip 8 are bent to the same side, thereby forming a nearly C-shaped structure Therefore, the two ends of the fixing clip 8 have the elasticity to approach inwardly, and the two ends of the fixing clip 8 are respectively engaged in the engagement grooves 3a, 1a of the heat dissipation plate 31 and the lampshade 1, so that the The lampshade 1 and the heat dissipation plate 31 are clamped and fixed together. Because the lampshade 1 and the heat dissipation plate 31 are generally simply fixedly connected, the lampshade 1 is very easy to fall off downwards, which brings danger to passers-by. Therefore, the lampshade 1 is clamped by the fixing clip 8 On the heat dissipation plate 31, the lampshade 1 is installed more firmly and stably, and the use is safer.

Based on the above and in conjunction with Fig. 8, when the LED lamp 100 of the present invention is working, the LED lamp 5 is powered on and lighted, and the light is diffused and irradiated outwards through the lampshade 1, and a large amount of heat is generated at the same time, and the heat passes through the heat-conducting substrate 2 to the heat dissipation plate 31, the heat dissipation plate 31 continues to transfer heat to the heat dissipation column 32, the heat dissipation column 32 heats the surrounding air, and the air inside the heat dissipation column 32 rises after being heated so that There is an air pressure difference between the bottom of the heat dissipation column 32 and the outside world, therefore, the cold air from the outside flows quickly into the interior of the heat dissipation column 32 through the gap 32a, thereby replenishing air for the interior of the heat dissipation column 32, and the cold air enters the heat dissipation column The inside of the heat dissipation column 32 is heated, and continues to rise to take away heat, so that the air inside the heat dissipation column 32 and the outside generate convection, and then continuously dissipate heat.

Compared with the prior art, because the utility model arranges a plurality of heat dissipation columns 32 on the heat dissipation surface 31b of the heat dissipation plate 31, and sets the heat dissipation columns 32 into a hollow tubular structure, thereby increasing the contact area with the air , and then accelerate the heat transfer with the surrounding air; and the upper end of the heat dissipation column 32 communicates with the outside, and the side wall opens the gap 32a, so that the outside world communicates with the inside through the gap 32a. When the heat dissipation plate 31 dissipates heat, the The internal temperature of the cooling column 32 is high, the gas rises, and the external temperature is low, the gas sinks, thereby forming air convection, the heat is released with the rising of the gas, and the cooling air continuously enters through the gap 32a, thereby continuously cooling; the utility model By arranging a plurality of LED lamps 5, the luminous brightness is effectively improved, and the rapid cooling of the heat dissipation assembly 3 is used, so that the entire LED lamp 100 not only enhances the lighting effect, but also improves the heat dissipation speed, so that the heat dissipation effect is better.

The dimensions of the heat dissipation plate 31 and the heat dissipation column 32 involved in the LED lamp 100 of the present utility model and the light emitting principle of the LED lamp 5 are well known to those skilled in the art, and will not be described in detail here.

What is disclosed above is only a preferred example of the utility model, and of course the scope of rights of the utility model cannot be limited with this. Therefore, equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model .

Claims (10)

1. An LED lamp, comprising a lampshade, a heat-conducting substrate, a heat dissipation component and several LED lamps, the lampshade is sealedly connected with the heat dissipation component to form a closed space, and the LED lamp is built in the closed space and installed in On the heat conduction substrate, the heat conduction substrate is in thermal contact with one side of the heat dissipation component, and it is characterized in that: the heat dissipation component includes a heat dissipation plate, the heat dissipation plate has a heat conduction surface and a heat dissipation surface, and the heat dissipation surface extends upward A plurality of heat dissipation columns are formed, the heat dissipation columns are in a hollow tubular structure and the upper end communicates with the outside, and the side walls of the heat dissipation columns are provided with a plurality of air vents. 2. The LED lamp according to claim 1, wherein the heat dissipation column is cylindrical. 3. The LED lamp according to claim 1, wherein the air vent is a slit opened along the length direction of the heat dissipation column. 4. The LED lamp according to claim 3, wherein the number of said slits is two, and they are located on opposite sides of said cooling columns. 5. The LED lamp according to claim 1, characterized in that: the LED lamp further comprises a reflective lampshade, the surface of the reflector lampshade is concavely provided with several lamp grooves, the lamp grooves expand from the inside to the outside, and the lamp The inner side wall of the groove has a circular arc structure, and the LED lamp is installed in the light groove. 6 . The LED lamp according to claim 5 , wherein the inner wall of the light trough is provided with a plurality of reflective sides, and two of the reflective sides are adjacent to each other to enclose the light trough. 7 . 7. The LED lamp according to claim 1, characterized in that: a plurality of arc-shaped lenses protrude from the outer surface of the lampshade, and the LED lamp corresponds to the lenses one by one. 8. The LED lamp according to claim 1, characterized in that: the LED lamp further comprises a waterproof ring, a waterproof groove is opened around the edge of the heat conducting surface of the heat sink, and the waterproof ring is accommodated in the waterproof groove Among them, the waterproof ring can prevent water from entering from the installation gap of the heat dissipation plate and the lampshade. 9. The LED lamp according to claim 1, characterized in that: the LED lamp further comprises a waterproof wire cover, and the waterproof wire cover is hermetically installed on the heat dissipation plate and communicated with the confined space. 10. The LED lamp according to claim 1, characterized in that: the LED lamp further comprises a plurality of fixing clips, and a plurality of engagement grooves are correspondingly opened around the heat dissipation surface of the heat dissipation plate and the outer surface of the lampshade, so that Both ends of the fixing clip are respectively elastically engaged in the engaging grooves of the heat dissipation plate and the lampshade.

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