CN201507851U - Light-emitting diode street lamp - Google Patents

Abstract

The utility model relates to a light-emitting diode street lamp, including a light-emitting module, a heat conduction seat, a heat dissipation lamp shade, a plurality of heat conduction post, a continuous bending heat dissipation plate, light-emitting module contains a base plate and connects in the plural light-emitting diode of base plate, the heat conduction seat supplies the base plate to bear the weight of the rigid coupling, heat dissipation lamp shade shroud heat conduction seat and with form a first cavity and a second cavity between the heat conduction seat, heat dissipation lamp shade offers the plural ventilation hole that communicates with the first cavity, the plural heat conduction post is held and is located in the second cavity and with both ends respectively thermal contact heat conduction seat and heat dissipation lamp shade, continuous bending heat dissipation plate hold locate in the first cavity and with each bending thermal contact heat conduction seat; therefore, high-temperature heat generated by the light emitting diode can be quickly conducted and dissipated, so that the heat dissipation efficiency and the illumination efficiency of the street lamp are improved.

Description

LED Street Light

technical field

The utility model relates to a lighting device, in particular to a light-emitting diode street lamp used in outdoor lighting.

Background technique

The structure of the known street lamp is that the bent and extended end of the upright light pole is assembled with a hollow lamp housing, and the interior of the hollow lamp housing is provided with a light source, and through the light-transmitting lampshade at the bottom of the lamp housing, night lighting for the road and the surrounding environment is provided. . It is known that street lights require high brightness, so most of them use high-power, large-size lighting sources, such as incandescent bulbs, mercury lamps and other luminous bodies, but the lighting efficiency is poor, causing serious power consumption. It is not a temporary choice, and the heat generated by the high-power and large-sized lighting source is difficult to dissipate from the housing, resulting in excessive temperature of the housing or burning of the lighting source, requiring frequent maintenance and replacement, wasting manpower, material resources and time .

Nowadays, street lamps already use light-emitting diode lamps as lighting sources. Light-emitting diodes have the advantages of low power consumption, high lighting brightness, and long life, which can improve lighting efficiency and save power. The lighting source is arranged on a circuit board. Multiple light-emitting diodes However, the high-temperature heat generated by light-emitting diodes will cause overheating of the circuit board of the lamp, and the street lamps are installed outdoors. The heat can be dissipated through the lamp housing and its internal space, so that the heat dissipation efficiency is poor, which seriously affects the lighting performance of the light-emitting diodes and shortens the service life.

Contents of the invention

The purpose of the present utility model is to provide a light-emitting diode street lamp, which can quickly dissipate the high-temperature heat generated by the light-emitting diode, so as to improve the heat dissipation efficiency and lighting performance of the street lamp.

In order to achieve the above-mentioned purpose, the utility model provides a light-emitting diode street lamp, which includes a light-emitting module, a heat-conducting seat, a heat-radiating lampshade, a plurality of heat-conducting columns, and a continuously bent heat-dissipating plate; the light-emitting module includes a substrate and connecting A plurality of light-emitting diodes on the substrate; the heat conduction seat is used for carrying and fixing the substrate; the heat dissipation lamp cover covers the heat conduction seat and forms a first chamber and a second chamber with the heat conduction seat, and the light emitting module accommodates Located in the first chamber, the heat dissipation lampshade is provided with a plurality of ventilation holes communicating with the first chamber; the plurality of heat conduction columns are accommodated in the second chamber, and the two ends of the heat conduction columns are in thermal contact with the The heat conduction base and the heat dissipation lampshade; the continuously bent heat dissipation plate is accommodated in the first cavity and attached to the heat conduction base.

The effect of the utility model is that the plurality of heat conduction columns in the second chamber conduct the high temperature heat generated during the operation of the light-emitting module to the heat dissipation lampshade in the form of heat conduction, and the cold air from the outside can enter the first chamber through the plurality of ventilation holes. Take away the heat accumulated on the continuously bent heat sink, and dissipate the high-temperature heat generated by the light-emitting module to the outside by means of heat convection, so that the high-temperature heat generated by the light-emitting module can be quickly dissipated. In turn, the lighting efficiency and service life of street lamps are improved, and the cost of maintenance manpower and working hours is reduced, which has industrial application value.

Description of drawings

Fig. 1 is a three-dimensional combination of the utility model and a perspective schematic diagram of some components;

Fig. 2 is one of the three-dimensional exploded schematic diagrams of some components of the utility model;

Fig. 3 is the second three-dimensional exploded schematic diagram of some components of the utility model;

Fig. 4 is a three-dimensional combination schematic diagram of another perspective of the utility model;

Fig. 5 is a side view sectional schematic diagram of the utility model;

Fig. 6 is a partially enlarged schematic diagram of Fig. 5;

Fig. 7 is another embodiment figure of the utility model.

Explanation of reference signs:

Light-emitting module 10 Substrate 11

Light-emitting diode 12 Heat conduction seat 20

Hoarding 21 Radiating lampshade 30

Lower cover 31 Light transmission hole 311

Ventilation hole 312 Upper cover 32

First chamber 33 Second chamber 34

Thermal column 40 Continuously bent cooling plate 50

Translucent shield 60 Frame 61

Transparent plate 62 Light pole assembly 70

Bearing seat 71 Support rod 72

Detailed ways

The detailed description and technical content of the utility model are as follows with illustrations. However, the attached illustrations are only for reference and illustration, and are not intended to limit the utility model.

The utility model relates to a light-emitting diode street lamp. Please refer to Figures 1 to 4, which are respectively the three-dimensional combination and the perspective schematic diagram of some components of the utility model, one of the three-dimensional exploded schematic diagrams of some components of the utility model, and the parts of the utility model. The second three-dimensional exploded schematic diagram of the assembly, and the three-dimensional combined schematic diagram of another perspective of the utility model, the light-emitting diode street lamp includes a light-emitting module 10, a heat-conducting base 20, a heat-radiating lampshade 30, a plurality of heat-conducting columns 40, a continuously bent The cooling plate 50 , a light-transmitting shield 60 , and a light pole assembly 70 .

The light-emitting module 10 includes a substrate 11 and a plurality of light-emitting diodes 12. The substrate 11 is a rectangular circuit board, but it is not limited to this shape. One side of the substrate 11 is printed with conductive circuits, and the other side is pasted with a layer Insulating material, the plurality of light emitting diodes 12 are connected to the substrate 11, and are independently electrically arranged on the conductive circuit, if one of the light emitting diodes 12 is damaged, it will not affect the operation of other light emitting diodes 12, the plurality of light emitting diodes 12 Arranged on the substrate 11 , it can provide a large-area illumination range and have sufficient illumination intensity.

The heat conduction seat 20 is rectangular, but not limited by this shape. The heat conduction seat 20 is made of a material with high thermal conductivity, such as metal, which is a material with good thermal conductivity (the definition of thermal conductivity is: the relative Between the two sides, assuming that there is a temperature difference of 1°C, the heat that moves from the high temperature side to the low temperature side within 1 second), but this material is not limited, and the thickness is thinned to shorten the heat conduction path, but still has enough Structural strength, the light-emitting module 10 is loaded and fixed on the central position of the heat-conducting seat 20. Further, the substrate 11 is attached to the central position of the bottom surface of the heat-conducting seat 20 with an insulating material side, and the plurality of light-emitting diodes 12 generate The high-temperature heat can be transferred to the heat conduction base 20 through the substrate 11 in a wide range, and a heat conduction medium such as thermal paste or heat conduction glue can be applied between the base plate 11 and the bottom surface of the heat conduction base 20 to enhance heat conduction performance.

The heat dissipation lampshade 30 is composed of a lower cover 31 and an upper cover 32. The lower cover 31 and the upper cover 32 are all made of high thermal conductivity materials, and the thickness is thinned to shorten the heat conduction path, but still have sufficient The structural strength of the lower cover 31 and the upper cover 32 is to form an accommodating space to accommodate the heat conduction seat 20, that is, the heat dissipation lampshade 30 covers the heat conduction seat 20, and furthermore, the outer periphery of the heat conduction seat 20 The protrusion is formed with an upright coaming plate 21, and the lower cover 31 is connected to the lower part of the coaming plate 21 in a screw connection mode, which is convenient for assembly and disassembly, and a first chamber is formed between the lower cover 31 and the heat transfer seat 20 33, so the light-emitting module 10 is accommodated in the first chamber 33, and the upper cover 32 is connected to the upper part of the enclosure plate 21 in a screwed manner, which is convenient to assemble and disassemble, and the upper cover 32 and the heat conducting seat 20 A second chamber 34 is formed therebetween.

The plurality of heat conduction columns 40 are accommodated in the second chamber 34. The heat conduction columns 40 are elongated and cylindrical, but not limited to this shape. They are made of high thermal conductivity materials. The heat conduction columns 40 have two ends They are respectively in thermal contact with and fixedly connected to the heat conducting base 20 and the upper cover 32. The fixing method can be welding, bonding, or locking, and the locking method makes maintenance more convenient. The two ends of the heat conducting column 40 are respectively The contact surface with the heat conduction base 20 and the upper cover 32 is coated with a heat conduction medium to enhance the heat transfer performance, and the plurality of heat conduction columns 40 are arranged on the heat conduction base 20 different from the base plate 11 corresponding to the position of the base plate 11. side, so that the high-temperature heat generated by the plurality of light-emitting diodes 12 is quickly transferred to the upper cover 32 through the substrate 11 , the heat-conducting base 20 , and the plurality of heat-conducting columns 40 .

The continuously bent heat dissipation plate 50 is accommodated in the first chamber 33. The continuously bent heat dissipation plate 50 is in the shape of a corrugated plate, but not limited to this shape. It is made of a material with high thermal conductivity. The continuously bent heat sink 50 is in thermal contact with each bend and fixedly connected to the bottom surface of the heat conduction seat 20. The fixing method can be welding, bonding, or locking, and the locking method makes maintenance more convenient. The contact surfaces of the bends of the continuously bent heat sink 50 and the heat conduction base 20 are coated with a heat conduction medium to enhance heat transfer efficiency.

The lower cover 31 is provided with a light-transmitting hole 311 communicating with the first chamber 33 corresponding to the position of the light-emitting module 10 , and the light-transmitting shield 60 includes a frame 61 and a transparent plate 62, the frame body 61 is connected to the bottom surface of the heat conduction seat 20 in a locking manner and surrounds the light emitting module 10, and the frame body 61 is embedded in the light-transmitting hole 311, and the transparent plate 62 is made of light-transmitting material , can be plastic or glass, but not limited to these materials, then the light-transmitting shield 60 can cover the light-emitting module 10, so that the outside dirt and moisture will not affect the light-emitting module 10, so as to achieve airtightness.

The lower cover 31 is further provided with a plurality of ventilation holes 312 communicating with the first chamber 33. The ventilation holes 312 are in the shape of an elongated ellipse, but not limited by this shape. The plurality of ventilation holes 312 are corresponding to the continuous curved The position of the folded cooling plate 50 is arranged so that external cold air can enter the first chamber 33 and blow on the continuously bent cooling plate 50 .

The light pole assembly 70 includes a bearing base 71 and a support rod 72, the bearing base 71 is hollow and fixed to the upper cover 32, and the upper cover 32 is provided with a hole to allow the second chamber 34 to communicate with the bearing The inner space of the seat 71, the heat conduction seat 20 is provided with a hole so that the first chamber 33 communicates with the second chamber 34, one end of the support rod 72 is bent to pass through the bearing seat 71, the support rod 72 has a cable The channel is used for cables to pass through the supporting rod 72 , the bearing base 71 , the second chamber 34 , and the first chamber 33 to be electrically connected to the plurality of LEDs 12 .

Please refer to Figures 5 and 6, which are respectively a schematic side view of the utility model and a partially enlarged schematic view of Figure 5. The thickness of the heat conducting seat 20 and the heat dissipation lampshade 30 are all thinned to shorten the heat conduction path. The light-emitting diodes 12 operate to emit light, and the light is irradiated to the dark place through the transparent plate 62. The plurality of light-emitting diodes 12 generate high-temperature heat, which is respectively conducted to the substrate 11, and the substrate 11 conducts the heat to the heat-conducting seat 20 in a wide range. In the first chamber 33, heat is dissipated to the outside in the form of heat convection. Further explanation, outside cold air enters the first chamber 33 through the ventilation hole 312 and blows the continuously bent heat dissipation plate. 50, quickly take away the heat accumulated in the continuously bent heat dissipation plate 50, in the second chamber 34, the heat is dissipated to the outside in the form of heat conduction, further explained, the heat conduction seat 20 corresponds to the light The part at the position of the module 10 conducts heat quickly to the upper cover 32 through the plurality of heat conduction columns 40, and the outer side of the upper cover 32 is exposed to cold air in a large area, and the heat accumulated in the upper cover 32 is quickly taken away by the cold air , by virtue of the principles of heat convection and heat conduction, the high-temperature heat generated during the operation of the plurality of light-emitting diodes 12 can be quickly dissipated to the outside, so that the street lamp is not easily damaged and the lighting efficiency is increased.

Please refer to Figure 7, which is another embodiment of the utility model, the plurality of heat conducting columns 40 are in the shape of elongated rectangular columns lying horizontally, and the top and bottom surfaces of the heat conducting columns 40 are in thermal contact with the heat conducting seat 20 respectively. And the heat dissipation lampshade 30, the plurality of heat conduction columns 40 corresponding to the positions of the substrate 11 are arranged on the heat conduction seat 20 on a side different from the substrate 11, so that the high temperature heat generated by the plurality of light emitting diodes 12 passes through the substrate 11 , the heat conduction seat 20 and the plurality of heat conduction columns 40 are quickly conducted to the upper cover 32 , and the outer side of the upper cover 32 is exposed to cold air in a large area, and the heat accumulated in the upper cover 32 is quickly taken away by the cold air.

Of course, the utility model can also have other various embodiments, and those skilled in the art can evolve 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 patent application attached to the utility model.

Claims (10)

1. a light emitting diode road lamp is characterized in that, comprising:

One light emitting module comprises a substrate and is connected in the plural light emitting diode of this substrate;

One heat-conducting seat, affixed for this base plate carrying;

One heat radiation lampshade, this heat-conducting seat of cover cap and and this heat-conducting seat between form one first chamber and one second chamber, this light emitting module is located in this first chamber, this heat radiation lampshade offers the plural air vent that communicates with this first chamber;

The plural number heating column is located in this second chamber and the two ends of this heating column difference this heat-conducting seat of thermo-contact and this heat radiation lampshade; And

The one continuous heat sink of bending is located in this first chamber and attaches this heat-conducting seat.

2. light emitting diode road lamp as claimed in claim 1 is characterized in that, this heat radiation lampshade comprise a lower cover and with a loam cake of the mutual winding of this lower cover.

3. light emitting diode road lamp as claimed in claim 2 is characterized in that, this first chamber is formed between this lower cover and this heat-conducting seat.

4. light emitting diode road lamp as claimed in claim 2 is characterized in that, this second chamber is formed between this loam cake and this heat-conducting seat.

5. light emitting diode road lamp as claimed in claim 2 is characterized in that, the outer peripheral edges projection of this heat-conducting seat forms a coaming plate, and this lower cover is connected in an end of this coaming plate, and this loam cake is connected in the other end of this coaming plate.

6. light emitting diode road lamp as claimed in claim 1 is characterized in that, corresponding this light emitting module position of this heat radiation lampshade offers a loophole that communicates with this first chamber.

7. light emitting diode road lamp as claimed in claim 1 is characterized in that, also comprises a printing opacity guard shield that covers this light emitting module.

8. light emitting diode road lamp as claimed in claim 7 is characterized in that, this printing opacity guard shield comprises and is fixed in the framework on this heat-conducting seat and is embedded at a transparent panel in this framework.

9. light emitting diode road lamp as claimed in claim 1 is characterized in that, this plural number air vent is opened on this heat radiation lampshade location about that should light emitting module.

10. light emitting diode road lamp as claimed in claim 1 is characterized in that, also comprises a lamp stand assembly, and this lamp stand assembly comprises the load bearing seat that is fixed in this heat radiation lampshade and a support bar of this load bearing seat of cross-under.

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