CN204829525U - LED lamps - Google Patents

Abstract

The utility model relates to a LED lamp, include: a substrate, a heat sink, and a lamp cover; the LED lamp is characterized in that a plurality of LED lamp beads are packaged on the substrate, the substrate is arranged in the lamp shade, the radiator is connected with the lamp shade, the radiator comprises a cylindrical radiator body, the radiator body is connected with the lamp shade, a groove is formed in the center of one end face of the radiator body, a plurality of radiating channels are formed in the side wall of the radiator body and communicated with the groove, the radiating channels are circumferentially arranged by taking the axis of the radiator body as a central line, a support is arranged at one end of the radiator body, provided with the groove, and provided with a fan, and the fan and the groove are coaxially arranged; and a plurality of radiating fins are arranged at one end of the lampshade connected with the radiator.

Description

LED lamps

technical field

The utility model relates to the field of lighting lamps, in particular to an LED lamp.

Background technique

LED (Light Emitting Diode), that is, semiconductor electric light source, light-emitting diode, also known as semiconductor lamp, is a kind of electric light source without filament, which directly converts electrical energy into light energy.

LED lamps have the characteristics of energy saving and long life, and avoid the trouble of changing bulbs frequently, and are favored by more and more users. However, the heat dissipation problem of LED lamps is also a key issue, which seriously affects the light efficiency and life of LED light sources. Traditional LED lamps have low heat dissipation efficiency, resulting in high temperature of the LED light source, which affects the light efficiency and life of the LED.

Utility model content

Based on this, it is necessary to provide an LED lamp with higher heat dissipation efficiency for the heat dissipation problem of the LED lamp.

An LED lamp, comprising: a substrate, a radiator and a lampshade;

The substrate is packaged with a plurality of LED lamp beads, the substrate is arranged in the lampshade, the radiator is connected to the lampshade, the radiator includes a cylindrical radiator body, and the radiator body is connected to the lampshade. The lampshade is connected, the center of one end surface of the radiator body is provided with a groove, and the side wall of the radiator body is provided with a plurality of cooling channels, each of the cooling channels communicates with the groove, and the plurality of The heat dissipation passages are arranged in a circle with the axis of the radiator body as the center line, and the radiator body is provided with a bracket at one end provided with the groove, and the bracket is provided with a fan, and the fan is connected to the groove Concentric setting;

The end of the lampshade connected to the radiator is provided with a plurality of cooling fins.

In one of the embodiments, the support is a cross-shaped structure.

In one of the embodiments, the groove is conical, and its bottom surface is located at the end surface of the radiator body.

In one of the embodiments, the heat dissipation channel is straight.

In one of the embodiments, the heat dissipation channel is arc-shaped.

In one of the embodiments, a plurality of the cooling fins are arranged in a circle.

In one of the embodiments, the cross-section of the heat dissipation channel is square.

In the above-mentioned LED lamps, the substrate generates heat due to the light emitted by the LED lamp beads, and the heat of the substrate can be transmitted to the lampshade. Since the lampshade is connected to the radiator, the heat can be further transmitted to the radiator. Since the radiator body is provided with multiple cooling channels, more heat dissipation area can be provided inside the radiator body. Since the radiator body is provided with a fan, the rotation of the fan can accelerate the dissipation of heat in the heat dissipation channel, thereby accelerating the heat dissipation speed and improving the heat dissipation efficiency.

Description of drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of an LED lamp;

FIG. 2 is a structural schematic diagram of another viewing angle of the LED lamp shown in FIG. 1;

Fig. 3 is an exploded schematic view of the LED lamp shown in Fig. 1;

Fig. 4 is a schematic diagram of an exploded structure of another viewing angle of the LED lamp shown in Fig. 1;

Fig. 5 is a partially enlarged schematic diagram of part A of the LED lamp shown in Fig. 1;

The meanings of each label in the accompanying drawings are:

10-LED lamps;

110-substrate, 111-LED lamp beads;

120-radiator body, 121-groove, 122-radiation channel, 123-bracket, 124-fan;

130-lampshade, 131-lampshade plate, 132-lampshade shell, 133-radiation module, 134-first heat dissipation through hole, 135-connecting ring part, 136-panel part, 137-second heat dissipation through hole, 138-connection plate , 139-radiating element, 140-connecting rod, 141-radiating beam, 142-radiating fin, 143-installation slot, 144-middle shaft, 145-radiating column, 146-radiator.

Detailed ways

As shown in Figures 1-4, wherein, Figure 1 is a schematic structural view of a preferred embodiment of the LED lamp 10; Figure 2 is a schematic structural view of another viewing angle of the LED lamp 10 shown in Figure 1; FIG. 4 is a schematic exploded view of the LED lamp 10 shown in FIG. 1 from another perspective.

For example, please refer to FIG. 2 and FIG. 3, an LED lamp 10, which includes: a substrate 110, a heat sink 146, and a lampshade 130;

The substrate 110 is packaged with a plurality of LED lamp beads 111, and the substrate 110 is arranged in the lampshade 130;

Radiator 146 is connected with lampshade 130, and the end that radiator 146 is connected with lampshade 130 is conical shape, and radiator 146 comprises the radiator body 120 that is cylindrical, and the center of radiator body 120 end face is provided with groove 121, and radiator body The side wall of 120 is provided with a plurality of cooling passages 122, and the cooling passages 122 communicate with the groove 121. The cooling passages 122 are arranged in multiple rows, and each row of cooling passages 122 is arranged in a plurality of rows. The central line is arranged in a circle, so that when the heat dissipation channels 122 are arranged in many rows, the inner wall of the heat dissipation channels 122 can provide more heat dissipation area to help the radiator 146 dissipate heat.

In order to speed up the heat dissipation, the heat sink body 120 is provided with a bracket 123 at one end of the groove 121, and the bracket 123 is provided with a fan 124. For example, as shown in FIG. 3, the bracket 123 may be a cross-shaped structure. The fan 124 is arranged coaxially with the groove 121, and the fan 124 can blow air toward the radiator body. The setting of the fan 124 can dissipate the heat in the heat dissipation channel 122 in the form of active heat dissipation.

To achieve a better heat dissipation effect, the groove 121 may be cylindrical or conical. Preferably, the groove 121 is conical, so that the groove 121 gradually shrinks in the direction away from the fan 124, and the wind blown by the fan 124 will also be blocked by the heat dissipation channels 122 layer by layer, so that the air blown out by the fan 124 Wind energy enters the cooling duct more evenly. When the groove 121 is conical, the conical bottom surface is located at the end surface of the radiator body 120 , which is beneficial to manufacturing.

The heat dissipation channel 122 can be straight or arc-shaped. Preferably, the heat dissipation channel 122 is arc-shaped. The straight shape of the cooling channel 122 is beneficial to the utilization of space. The heat dissipation channel 122 is arc-shaped, which is conducive to lengthening the length of the heat dissipation channel 122 and when the fan 124 is omitted in the radiator body 120, it can help the natural rise of hot air, and when the radiator body 120 is provided with a fan 124, it can reduce the number of fans. 124 to the resistance of blowing air in the cooling pipe.

In order to accelerate the dissipation of heat in the lampshade 130 , the lampshade 130 includes: a lampshade plate 131 , a lampshade shell 132 , a heat dissipation module 133 , and a heat sink 142 . One side of the lampshade plate 131 is provided with a mounting groove 143 , and the mounting groove 143 is circular. The lampshade plate 131 is provided with a plurality of first heat dissipation through holes 134 . The lampshade shell 132 includes: a connecting ring portion 135 connected to the lampshade plate 131 and a panel portion 136 opposite to the lampshade plate 131 , the panel portion 136 is connected to the connecting ring portion 135 , and the lampshade shell 132 is provided with a plurality of second cooling holes 137 . The radiator 146 is connected to the side of the lampshade plate 131 away from the panel. The second heat dissipation through hole 137 can be located at the panel portion 136 of the lamp housing 132 , and can also be located at the connecting ring portion 135 of the lamp housing 132 . There are a plurality of first heat dissipation through holes 134 and second heat dissipation through holes 137 . For example, both the first heat dissipation via hole 134 and the second heat dissipation via hole 137 are circular. Such an effect is that the arrangement of the first heat dissipation through hole 134 and the second heat dissipation through hole 137 can facilitate convection between the hot air inside the lampshade 130 and the outside air, thereby increasing the speed of heat exchange.

Also refer to FIG. 5 , which is a partially enlarged schematic diagram of part A of the LED lamp 10 shown in FIG. 1 . In order to improve the heat dissipation efficiency of the lampshade 130, the heat dissipation module 133 includes: a connecting pad 138 and a heat sink 139 connected with the connecting pad 138, the connecting pad 138 is arranged in the installation groove 143, the connecting pad 138 is connected with the base plate 110, and the connecting pad 138 is a circle shape, with a circular through hole in the center. The edge of one side of the connection plate 138 is arc-shaped. A flange is provided on the edge of the connection plate 138 . One side of the connection pad 138 is connected to the substrate 110 , and the other side of the connection pad 138 is disposed in the installation groove 143 . For example, there are multiple heat sinks 139, and each heat sink 139 includes a connecting rod 140 and a plurality of heat dissipation beams 141, the connecting rod 140 is connected to the connecting plate 138, and the plurality of connecting rods 140 are arranged at intervals along the edge of the connecting plate 138, The heat dissipation bundles 141 are connected to the connecting rods 140 , and each connecting rod 140 is provided with a plurality of heat dissipation bundles 141 . For another example, there are multiple heat sinks 139 arranged in a circle along the edge of the connection plate 138 , each heat sink 139 includes a connecting rod 140 and a plurality of heat dissipation bundles 141 , and the connecting rod 140 is connected to the flange of the connecting plate 138 . There are a plurality of connecting rods 140 arranged at intervals along the edge of the connecting plate 138 , and the heat radiation bundle 141 is connected to the connecting rods 140 . In order to facilitate the flow of air, the connecting rod 140 is in the shape of a round rod. The cooling bundle 141 includes an intermediate shaft 144 connected to the connecting rod 140 and a cooling column 145 connected to the intermediate shaft 144 . The intermediate shaft 144 may be cylindrical, and the cooling column 145 may be straight or curved. The cooling column 145 may be cylindrical when it is straight. The effect of this is: the heat of the substrate 110 can be transmitted to the heat dissipation module 133, and the heat dissipation module 133 has more heat dissipation area due to being provided with a plurality of heat dissipation pieces 139. Entering the lampshade 130, after heat exchange with the heat sink 139, the temperature rises and becomes hot air, and then the hot air can naturally rise and be discharged from the second heat dissipation vent, thereby taking away the heat of the heat sink 139, etc., the intermediate shaft 144 is The cylindrical shape and the cylindrical shape of the cooling column 145 are beneficial to reduce the resistance of air flow.

In order to improve the heat dissipation efficiency of the lampshade 130 , the end of the lampshade 130 connected to the heat sink 146 is provided with a plurality of cooling fins 142 , that is, the plurality of cooling fins 142 are connected to the side of the lampshade plate 131 away from the mounting groove 143 . For example, a plurality of cooling fins 142 are arranged in a circle, and the cooling fins 142 correspond to one end of the heat sink 146 in the shape of a truncated cone. Multiple heat sinks 142 can provide more heat dissipation area, which can help the lampshade 130 to dissipate heat.

In the above-mentioned LED lamp 10 , the substrate 110 will generate heat due to the LED lamp bead 111 emitting light. Since the substrate 110 is connected to the land 138 of the lampshade 130 , the heat of the substrate 110 can be transferred to the heat dissipation module 133 inside the lampshade 130 and the radiator 146 outside the lampshade 130 . The heat dissipation module 133 inside the lampshade 130 and the radiator 146 outside the lampshade 130 have more heat dissipation areas, thereby improving heat dissipation efficiency. The lampshade 130 is provided with a first heat dissipation through hole 134 and a second heat dissipation through hole 137, which can facilitate air convection, and air convection can make more air pass through the surface of the heat dissipation module 133, which can improve the contact between the surface of the heat dissipation beam 141 of the heat dissipation module 133. The heat exchange speed of the air can take away the heat in the lampshade 130 in time to improve heat dissipation efficiency. The heat dissipation beams 141 on the heat dissipation element 139 can provide more heat dissipation area, so as to speed up the heat dissipation speed of the heat dissipation element 139 and the heat dissipation module 133 and improve the heat dissipation efficiency.

Because the lampshade 130 is connected with the radiator 146, the heat can be further transferred to the radiator 146. The multiple heat dissipation channels 122 in the radiator body 120 can not only form more heat dissipation areas in the radiator body 120, but also speed up the cooling process. air circulation. Since each heat dissipation channel 122 is connected with the groove 121, an open structure can be formed inside the radiator body 120, and a fan 124 is arranged in the groove 121, and the rotation of the fan 124 can accelerate the dissipation of heat in the heat dissipation channel 122. Thereby speeding up the heat dissipation speed and improving the heat dissipation efficiency.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (7)

1. a LED lamp, comprising: substrate, radiator and lampshade; Described substrate package has multiple LED lamp bead, and described substrate is located in described lampshade, and described radiator is connected with described lampshade, it is characterized in that,

Described radiator comprises columniform radiator body, described radiator body is connected with described lampshade, the center of described radiator body one end face is provided with groove, the sidewall of described radiator body is provided with multiple heat dissipation channel, each described heat dissipation channel is communicated with described groove respectively, multiple described heat dissipation channel line centered by described radiator body axis circumferentially arranges, one end that described radiator body is being provided with described groove is provided with support, described support is provided with fan, and described fan and described groove concentric are arranged;

One end that described lampshade is connected with described radiator is provided with multiple fin.

2. LED lamp according to claim 1, is characterized in that, described support is cross-shaped configuration.

3. LED lamp according to claim 1, is characterized in that, conically, its bottom surface is positioned at the end face of described radiator body to described groove.

4. LED lamp according to claim 1, is characterized in that, described heat dissipation channel linearly shape.

5. LED lamp according to claim 1, is characterized in that, described heat dissipation channel is curved.

6. LED lamp according to claim 1, is characterized in that, multiple each described fin circumferential arrangement.

7. LED lamp according to claim 1, is characterized in that, the cross section of described heat dissipation channel is square.