CN201081213Y - Bank light - Google Patents

Abstract

The utility model relates to a bank of lights is including the heat dissipation base plate, a plurality of emitting diode and radiating seat, this heat dissipation base plate has relative first and second surface, and be formed with the printing control circuit on this first surface, this a plurality of emitting diode arrange in the second surface of heat dissipation base plate, and its pin passes the heat dissipation base plate and makes electric connection with the printing control circuit of first surface, this radiating seat then connects the second of arranging the heat dissipation base plate in on the surface and have the cavity, with these a plurality of emitting diode of holding, produced heat energy when making this emitting diode function can be dissipated by this emitting diode's side direction and base plate direction.

Description

row of lights

technical field

The utility model relates to a bar lamp, in particular to a bar lamp with a plurality of arranged light emitting diodes as light sources.

Background technique

In daily life, light-emitting diodes have gradually become the choice of light source due to their small size and sufficient brightness. However, when the light-emitting diode is used, a large amount of heat energy will be generated, which will increase the temperature of the element, but the high-temperature environment will reduce the service life of the light-emitting diode. In order to maintain a certain level of work efficiency, the main purpose is to effectively dissipate the heat energy of the LEDs.

Please refer to FIG. 1 , US Patent No. 5,857,767 discloses a schematic diagram of a heat dissipation system for light emitting diodes. The heat dissipation system 10 is to make the first surface 111 of the heat dissipation substrate 11 for connecting the light emitting diodes 12 into a fin shape. The heat generated by the light emitting diode 12 is dissipated into the atmosphere from the direction of the substrate adjacent to the lead 121 through the heat dissipation substrate 11 .

Please refer to FIG. 2A, US Patent No. 7,253,447 discloses a light emitting device 20, the light emitting device 20 includes a heat dissipation substrate 21, a circuit board 22 above the heat dissipation substrate 21, and a printed circuit formed on the circuit board 22 23 , 24 , the light emitting element 25 , the wire 26 electrically connecting the printed circuit 23 , 24 and the light emitting element 25 , and the lampshade 27 covering the light emitting element 25 and the wire 26 . The heat dissipation substrate can also be changed into a fin-shaped heat dissipation substrate 212 as shown in FIG. 2B . Alternatively, as shown in FIG. 2C , a heat radiation hole 213a may be opened on the heat dissipation substrate 213 , and a heat pipe 213b may be provided at the opening to guide the heat from the heat pipe to the heat radiation plate 213c to dissipate.

The heat dissipation devices in the above known technologies are all arranged in the direction of the substrate where the LEDs are connected, but when the LEDs are in operation, heat is not only generated in the direction of the substrate, but also dissipated in the direction of light emission and laterally. In addition to satisfying the lighting effect in the direction of light emission, and not being able to place heat sinks, how to escape the heat emitted by the light-emitting diodes in the lateral direction to achieve the effect of quickly reducing the overall structural temperature is a topic that needs to be considered today.

Contents of the invention

In view of the deficiencies of the above-mentioned known technologies, the purpose of this utility model is to provide a bar lamp with light-emitting diodes as the light source, which has a heat dissipation device, which can dissipate the heat generated when the bar lamp is working, so that the light-emitting diodes can operate normally.

Another object of the present invention is to provide a bar lamp, which can dissipate the heat of the light-emitting diode relative to the substrate and the lateral direction.

In order to achieve the above purpose, the utility model provides a bar lamp, comprising: a heat dissipation substrate having a first surface and a second surface, a control circuit is formed on the first surface; a plurality of light emitting diodes are arranged on the second surface of the heat dissipation substrate The leads pass through the heat dissipation substrate and are electrically connected to the printed control circuit on the first surface; and the heat dissipation seat is connected to the second surface of the heat dissipation substrate and has a cavity therein to accommodate the above-mentioned light emitting diode.

The light-emitting diodes are arranged on the second surface of the heat-dissipating substrate and accommodated in the cavity of the heat-dissipating base, so that the lateral heat of the light-emitting diodes can be absorbed by the heat-dissipating base. In addition to dissipating to the atmosphere, the heat can also be conducted to the heat-dissipating substrate , radiating from the first surface of the heat dissipation substrate into the atmosphere. The heat in the direction of the light-emitting diode substrate is directly conducted to the heat dissipation substrate and dissipated into the atmosphere.

Compared with the light-emitting device of the known technology, the heat from the heat-dissipating substrate in the direction of the light-emitting diode substrate is only released, causing the temperature of the light-emitting diode to decrease slowly, and the service life of the light-emitting diode at high temperature will be reduced. In order to make the function of the light-emitting diode normal, Therefore, the conventional light-emitting device cannot use a light-emitting diode with too high power, which will result in that the light-emitting device in the prior art cannot provide higher brightness. The utility model utilizes the heat sink containing the cavity to further absorb the lateral heat of the light-emitting diodes, and then cooperates with the heat dissipation substrate to dissipate the heat from the lateral direction of the light-emitting diodes and the direction of the substrate to the atmosphere, so as to quickly reduce the temperature of the row of lights in use , so higher power light-emitting diodes can be used to achieve the effect of improving brightness.

Description of drawings

FIG. 1 is a schematic diagram of a light-emitting diode cooling system disclosed in US Patent No. 5,857,767;

FIG. 2A is a schematic diagram of a light-emitting device disclosed in US Patent No. 7,253,447;

2B is a schematic diagram of a light-emitting device with fins on a heat dissipation substrate disclosed in US Patent No. 7,253,447;

FIG. 2C is a schematic diagram of the light emitting device disclosed in US Pat. No. 7,253,447 connecting the heat pipe and the heat radiation plate;

Figure 3A is a sectional view of the bar lamp of the present invention;

Fig. 3B is a top view of the bar lamp of the present invention;

Fig. 3C is a three-dimensional schematic diagram of the bar lamp of the present invention;

4A and 4B are schematic diagrams of the second embodiment of the bar lamp of the present invention;

5A and 5B are schematic diagrams of the third embodiment of the bar lamp of the present invention;

Fig. 6 is a schematic diagram of the fourth embodiment of the bar lamp of the present invention;

Fig. 7 is a schematic diagram of a fifth embodiment of the bar lamp of the present invention.

Among them, reference signs:

10 cooling system

11 Heat sink substrate

111 first surface

12 LEDs

121 pins

20 light emitting device

21 heat dissipation substrate

212 finned heat sink substrate

213 heat pipe cooling substrate

213a Thermal Radiation Holes

213b heat pipe

213c heat radiation plate

22 circuit board

23 printed circuit

24 printed circuit

25 light emitting elements

26 wires

27 lampshade

30 rows of lights

31 Heat sink substrate

311 first surface

312 second surface

32 LEDs

321 pins

33 heat sink

331 cavity

332 screw

34 lampshade

4 heat sink

41 cavities

5 heat sink

51 cavities

54 lampshade

60 two-dimensional square array of lights

70 two-dimensional mosaic row lights

Detailed ways

The specific embodiments of the present utility model are described below in conjunction with the drawings, so that those skilled in the art can easily understand the technical features and achieved effects of the present utility model.

3A to 3C are schematic diagrams of the first embodiment of the bar lights of the present invention, wherein FIG. 3A is a cross-sectional view of the bar lights of this embodiment, FIG. 3B is a top view of the bar lights, and FIG. 3C is a perspective view of the bar lights. Please refer to FIG. 3A , the bar lamp of the present utility model can be applied to lighting equipment using light-emitting diodes as light sources, and at least includes: a heat dissipation substrate 31 with a first surface 311 and a second surface 312, and printed controls are formed on the first surface 311. circuit; a plurality of light-emitting diodes 32 are arranged one-dimensionally on the second surface 312 of the heat dissipation substrate 31, and their pins 321 pass through the heat dissipation substrate 31 and are electrically connected to the printed control circuit on the first surface 311; a plurality of heat dissipation seats 33 , which has a cavity 331 to accommodate the light emitting diode 32, and is fixed by screws 332 and arranged one-dimensionally on the second surface 312 of the heat dissipation substrate 31. There are also a plurality of lampshades 34 placed on the cavity 331 of the heat sink 33 to cover the LEDs 32 .

Wherein the heat dissipation substrate 31 can be made of heat dissipation materials such as copper, aluminum, pottery, etc.; except that the heat dissipation base 33 can be made of heat dissipation materials such as copper, aluminum, pottery, etc., its shape can also be made into a fin shape to increase heat dissipation. area; the light-emitting diode 33 is provided with a cooling seat around it, so it can improve heat dissipation efficiency, and then use a high-power light-emitting diode to improve the brightness that the bar lamp 30 can provide; the material of the lampshade 34 can be acrylic or glass, etc. Transparent material is used to protect the light-emitting diodes. The shape of the lampshade can be made into an optical lampshade that can adjust the focal length of the light; the lampshade can also be removed to expose only the light of the light-emitting diodes.

Please refer to FIG. 4A and FIG. 4B , which are schematic diagrams of the second embodiment of the bar light of the present invention, wherein FIG. 4A is a side view of the bar light of this example, and FIG. 4B is a top view of the bar light of this example. This embodiment is substantially the same as the first embodiment, the main difference being that the heat sink 4 of this embodiment is only a single heat sink 4 , wherein a plurality of cavities 41 are arranged one-dimensionally for accommodating a plurality of light emitting diodes 32 . There are also a plurality of lampshades 34 respectively placed on the cavities 41 of the heat sink 4 to cover the plurality of LEDs 32 .

Please refer to FIG. 5A and FIG. 5B , which are schematic diagrams of a third embodiment of the practical bar light, wherein FIG. 5A is a side view of the bar light of this example, and FIG. 5B is a top view of the bar light of this example. This embodiment is substantially the same as the first embodiment, the main difference is that the heat sink of this embodiment is only a single heat sink 5, which has a single cavity 51, and the plurality of light emitting diodes 32 are accommodated in the cavity 51 and arranged one-dimensionally on the second surface 312 of the heat dissipation substrate 31 , and a lampshade 54 placed on the cavity 51 of the heat dissipation base 5 to cover the plurality of light emitting diodes 32 .

Please refer to FIG. 6 , which is a schematic diagram of a fourth embodiment of the bar lamp of the present invention. This embodiment is roughly the same as the first embodiment, the main difference is that the plurality of light emitting diodes and the plurality of heat sinks in this embodiment form a row of lamps 60 arranged in a two-dimensional square manner, so that the utility model can provide a surface light source, and more What's more, the brightness and darkness of the light-emitting diodes can be controlled by the circuit, so that the utility model can be applied to the display

Please refer to FIG. 7 , which is a schematic diagram of a fifth embodiment of the bar lamp of the present invention. This embodiment is substantially the same as the fourth embodiment, except that the multiple light emitting diodes and the multiple heat sinks in this embodiment form a two-dimensional mosaic array of lamps 70 . The mosaic arrangement is the closest arrangement in the two-dimensional arrangement, that is, the mosaic arrangement and the square arrangement are under the same area, and more objects can be placed in the mosaic arrangement in the area. Therefore, the arrangement of this embodiment enables the utility model to incorporate more light emitting diodes under the same area, so that the utility model can provide higher brightness per unit area.

Compared with the light-emitting device of the known technology, the heat of the light-emitting diode relative to the substrate is only released by the heat-dissipating substrate, resulting in a slower rate of temperature drop, and the service life of the light-emitting diode at high temperature will be reduced, so it is impossible to use a high-power light-emitting diode . The utility model utilizes the cooling seat containing the cavity to further absorb the lateral heat of the light-emitting diodes, and release the heat from the lateral direction of the light-emitting diodes and the direction of the substrate together with the heat dissipation substrate, so as to quickly reduce the temperature of the row of lights in use, so it can Use higher power light-emitting diodes to achieve the effect of improving brightness.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model. But these corresponding changes and deformations should all belong to the scope of protection of the appended claims of the present utility model.

Claims (9)

1. bank light comprises:

Heat-radiating substrate has first surface and second surface, is formed with control circuit in first surface;

A plurality of light emitting diodes are arranged in the second surface of heat-radiating substrate, and its pin passes heat-radiating substrate and electrically connects with the printing control circuit of first surface; And

Radiating seat connects on the second surface that places heat-radiating substrate, and wherein has cavity, with ccontaining this light emitting diode.

2. bank light according to claim 1 also includes lampshade, places on the cavity of radiating seat, with the capping light emitting diode.

3. bank light according to claim 1 also includes the lampshade of adjustable light focal length, places on the cavity of radiating seat, with the capping light emitting diode.

4. bank light according to claim 1, wherein, this radiating seat is with a plurality of arrangements, and respectively this radiating seat is provided with the cavity of ccontaining light emitting diode.

5. bank light according to claim 4, wherein, this radiating seat is one dimension and arranges.

6. bank light according to claim 4, wherein, this radiating seat is two-dimentional square arrangement.

7. bank light according to claim 4, wherein, this radiating seat is two dimension and inlays arrangement.

8. bank light according to claim 1, wherein, this radiating seat has a cavity of arranging, with ccontaining light emitting diode.

9. bank light according to claim 1, wherein, this radiating seat has single cavity that can ccontaining a plurality of light emitting diodes.

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