CN102128434A - Snow accumulation prevention device of LED lamp - Google Patents

Abstract

The invention provides a snow accumulation prevention device of an LED lamp, which is used for preventing the influence of accumulated snow on the display of a shielding lamp number of the LED lamp, and comprises the following components: the LED light-emitting unit is arranged in an outer lamp shell; the external element is arranged on the outer side of the LED light-emitting unit and fixed on the outer lamp shell; the heat conduction element is connected between the LED light-emitting unit and the external element in a heat conduction mode, so that the heat of the LED light-emitting unit is conducted to the external element; the heat generated by the LED light-emitting unit during light emission is conducted to the external element through the heat conducting element, so that high temperature is generated on the external element and/or the outer lamp shell around the external element, and thus snow on the external element and the outer lamp shell is melted, and the situation that the snow covers the outer lamp shell to shield the LED light-emitting unit from displaying lamp signals outwards is avoided.

Description

Snow protection device for LED lights

technical field

The present invention relates to an anti-snow device for LED lamps, in particular to an LED lamp that utilizes the heat conduction structure of the LED lamp to melt the snow on the outer lamp housing to prevent the snow from affecting the LED lamp from blocking the signal display. snow protection device.

Background technique

General LED lights have been widely used in traffic lights, warning lights or vehicle lights, such as traffic lights and warning lights at road intersections or specific roads, to direct pedestrians, vehicles to move and stop or It is to provide pedestrians and drivers with warning and attention functions to improve road traffic safety, maintain good traffic order, and reduce traffic accidents. In addition, LED lights are used on vehicles, which can greatly reduce power consumption and extend vehicle life. lamp life.

The common red, yellow, and green traffic signal lights indicate the progress and stop of passers-by through red, yellow, and green colors, or pedestrian signal lights remind pedestrians to cross through the action changes of electronic green villains. The time of the zebra crossing; in addition, the green and red two-color signal lights are used to indicate the movement and stop. The green and red two-color signal lights are usually set at the entrances of tunnels and parking lots. The red and yellow lights of the warning function are used as warning lights. This warning light is often used in tunnels, mountainous roads or dangerous, specific roads. It can also be flashing to enhance the warning effect of the warning light. Traffic or construction site; above-mentioned each traffic signal light and warning light are generally to utilize white light bulb to match colored (red, yellow, green) lens, or utilize the light bulb that can send red, yellow, green three kinds of hues by itself, then by The lampshade covers the outside to form a light-emitting structure of traffic lights or warning lights. This light-emitting structure is used to avoid the reflection of sunlight or the influence of rain from causing passers-by to judge the lights and light colors. Therefore, in traffic lights, The warning light is designed as an outwardly protruding shield to avoid being affected by sunlight or rain. Moreover, the LED lights can be installed inside the front and tail lights of the car body, and the LED lights can be illuminated by the electric current supplied in the car body and emit light.

In the United States, mainland China, Europe, cold zone countries and even areas where snow falls, there is a long snow season in a year. When it snows, snow flakes will continue to accumulate on the lampshades of traffic lights, warning lights and car lights Finally, the snow flows downward from the lampshade to form a drooping icicle, covering the display of traffic lights, warning lights and vehicle lights, causing traffic by using passers-by, drivers misjudging the signal instructions, or failing to recognize the signal. Accidents happen. However, although the existing traffic lights, warning lights and car lights have heat dissipation effects, their waste heat (heat) only needs to be quickly discharged, and there is no energy-saving effect of reusing the waste heat. Therefore, in order to solve the problem of snowfall on lamps Due to the shading effect caused by the LED lamp and the reuse of waste heat generated by the LED lamp, it is necessary to provide an anti-snow device for the LED lamp to prevent the influence of snow accumulation on the LED lamp.

Contents of the invention

The main purpose of the present invention is to provide an anti-snow device for LED lamps, which is used to prevent the shielding effect of snow on LED lamps, which includes: an LED light-emitting unit, an external element and at least one heat-conducting element; wherein the The LED light-emitting unit is arranged in an outer lamp housing; the external element is arranged outside the LED light-emitting unit and fixed on the outer lamp housing; the heat-conducting element is connected between the LED light-emitting unit and the external element, The heat of the LED light-emitting unit is conducted to the external element; through the above composition structure, the heat generated by the LED light-emitting unit is conducted to the external element through the heat-conducting element, so that the external element itself And/or the temperature on the outer lamp housing around it is increased, so as to melt the snow accumulated on the outer periphery of the outer element and the nearby outer lamp housing, so as to avoid snow accumulation and cover the LED light-emitting unit from the outside Display lights.

Another object of the present invention is to provide a snow prevention device for LED lights, which utilizes the heat (waste heat) generated by the LED lights as a heat source for melting snow, in addition to avoiding the shading effect of snow on the lights, and The energy-saving effect can be achieved by reusing waste heat. Compared with the active heat dissipation structure on the existing LED lamps, the present invention has better use efficiency.

In order to achieve the above object, the present invention provides an anti-snow device for LED lights, which is used to prevent the influence of snow accumulation on LED lights from blocking the light signal display, which includes:

An LED light-emitting unit is set in an outer lamp housing to serve as a light source and display a light signal;

An external component is arranged outside the LED lighting unit and fixed on the outer lamp housing; and

At least one heat conduction element is connected to the LED light-emitting unit and the external element respectively, so that the luminous heat of the LED light-emitting unit is conducted to the external element through the heat conduction element;

Wherein, the heat generated by the LED light-emitting unit when emitting light is conducted to the external element through the heat conduction element, so that the temperature of the external element itself and/or the outer lamp housing near it increases, thereby melting The snow on the external element is used to prevent the snow covering from covering the light signal displayed by the LED light-emitting unit.

During implementation, at least one viewing window is provided on the outer lamp housing for the LED light-emitting unit to display a light signal through the viewing window.

During implementation, the LED lighting unit includes a circuit board, and a plurality of evenly arranged LEDs are coupled to the circuit board.

In practice, the external element is made of metal material with heat conduction effect.

In practice, the heat conducting element is made of a material with a high thermal conductivity.

During implementation, the material of the heat conduction element is selected from any one or two or more of aluminum, copper, and heat conduction adhesive materials.

During implementation, the present invention is the anti-snow device of LED traffic signal lamp.

During implementation, the present invention is the anti-snow device of LED warning light.

During implementation, the present invention is an anti-snow device for LED lamps.

Compared with the prior art, the anti-snow device of the LED lamp according to the present invention utilizes the heat conduction structure of the LED lamp to melt the snow on the outer lamp housing so as to prevent the snow from affecting the LED lamp from blocking the signal display. .

Description of drawings

Fig. 1 is the appearance diagram of the embodiment of the traffic signal lamp applying the anti-snow device of the LED lamp of the present invention;

Fig. 2 is the exterior view of yet another embodiment of the traffic signal lamp applying the snow prevention device of the LED lamp of the present invention;

Fig. 3 is the exterior view of another embodiment of the traffic signal lamp applying the snow prevention device of the LED lamp of the present invention;

Fig. 4 is a schematic cross-sectional view of Fig. 1;

Fig. 5 is a schematic cross-sectional view of an embodiment of the warning light of the anti-snow device using the LED light of the present invention;

Fig. 6 is a schematic cross-sectional view of an embodiment of a vehicle lamp applying the snow protection device of the LED lamp of the present invention.

Explanation of reference signs: LED traffic signal light-1, 1', 1"; LED warning light-2; LED vehicle light-3; LED light-emitting unit-10; circuit board-11; LED-12 external components-20; Heat conduction element-30; outer lamp housing-40; window-41.

Detailed ways

In order to make the present invention more definite and detailed, the structure and technical features of the present invention are described in detail as follows in conjunction with the following illustrations:

Please refer to Fig. 1 to Fig. 4, the appearance diagram of the embodiment of the traffic signal lamp using the snow prevention device of the LED lamp of the present invention, the appearance diagram of another embodiment, the appearance diagram of another embodiment, the appearance diagram of Fig. 1 Schematic cross-sectional view, which is used to prevent the influence of snow accumulation on the LED light signal display; the snow protection device of the LED light of the present invention cooperates with such as LED traffic signal lights 1, 1', 1", LED warning lights 2 , used on LED car lights 3, including: an LED light emitting unit 10, an external element 20 and at least one heat conducting element 30; wherein the LED light emitting unit 10 is set in an outer lamp housing 40 as a light source, and the outer light The shell 40 is provided with at least one window 41 for the LED lighting unit 10 to emit bright light through the window 41. The LED lighting unit 10 includes at least one circuit board 11, and the circuit board 11 is coupled with multiple LED12 uniformly arranged, the light emitting color of the LED12 is not limited such as red, yellow, green.

The external element 20 is disposed on the outside of the LED lighting unit 10 and fixed on the outer lamp housing 40 . The external element 20 is made of a metal material with good heat conduction effect.

The heat conduction element 30 is thermally connected between the LED lighting unit 10 and the external element, and the heat conduction element 30 is made of a material with a high thermal conductivity, such as any one selected from aluminum, copper, and heat-conducting adhesive materials. The heat generated by the LED light-emitting unit 10 when it emits light, which is the heat generated by the circuit board 11 and the electronic components and LED 12 arranged on it, is conducted to the set. on the outer element 20, and increase the temperature of the outer element 20 itself and/or the outer lamp envelope 40 around it to melt the outer periphery of the outer element 20 and the outer lamp envelope 40 near it to prevent the lights or images displayed by the LED light-emitting unit 10 from being covered by snow or icicles, using passers-by or driving to misjudge the lights or even unrecognizable lights to cause accidents, and then cause traffic accidents.

Please refer to FIG. 4, the outer lamp housing 40 accommodates the LED lighting unit 10 and at least one heat conduction element 30, and the outer element 20 is arranged on the outside of the LED lighting unit 10. The outer element 20 And can be fixed on the outer lamp housing 40, wherein the LED light emitting unit 10 is thermally connected to the external element 20 through the heat conduction element 30, wherein, during operation, the LED light emitting unit 10 emits visible light and displays As shown in Fig. 1, Fig. 2 and Fig. 3, the heat generated by the LED light-emitting unit 10 is transmitted to the external element 20 through the heat-conducting element 30, so that The temperature on the outer element 20 itself and/or the outer lamp envelope 40 around it is increased to counteract snow accumulated on the outer element 20 or on the outer light envelope 40 near the outer element 20. Melting is used to prevent snow or icicles formed from covering the window 41 on the outer lamp housing 40 from affecting the lights or images displayed by the LED light-emitting unit, and passers-by cannot clearly identify the displayed The light signal, or even misjudge the light signal and cause accidental danger.

Please refer to FIG. 5 , a schematic cross-sectional view of an embodiment of a warning light using an LED lamp anti-snow device according to the present invention, wherein the LED warning light 2 includes an outer lamp housing 40 with a window 41, and the inside of the outer lamp housing 40 is The LED light-emitting unit 10 and the heat-conducting element 30 are provided, the LED light-emitting unit 10 is thermally connected to the external element 20 through the heat-conducting element 30, and the external element 20 is co-located on the LED light-emitting unit 10 and fixed on the top edge of the outer lamp housing 40, wherein the heat generated by the LED light-emitting unit 10 when emitting light is conducted to the outer element 20 through the heat-conducting element 30, so that the The temperature on the outer element 20 itself and/or the outer lamp housing 40 around it is increased to melt the snow accumulated on the outer element 20, so as to avoid snow or frost from covering the outer lamp housing 40. The window 41 prevents the LED lighting unit 10 from emitting bright light clearly.

Please refer to FIG. 6 , which is a schematic cross-sectional view of an embodiment of a car lamp applying the snow protection device of the LED lamp of the present invention, wherein the LED car lamp 3 includes an outer lamp housing 40 with a window 41, and the inside of the outer lamp housing 40 is The LED light-emitting unit 10 and the heat-conducting element 30 are provided, the LED light-emitting unit 10 is thermally connected to the external element 20 through the heat-conducting element 30, and the external element 20 is co-located on the LED light-emitting unit 10 and fixed on the outer lamp housing 40, wherein the heat generated by the LED lighting unit 10 when emitting light is conducted to the outer element 20 through the heat conduction element 30, so that the outer element 20 The temperature on the outer lamp housing 40 itself and/or its surroundings is increased to melt snow accumulated on the outer member 20, so as to avoid snow or frost from covering the window 41 on the outer lamp housing 40, As a result, the LED lighting unit 10 cannot clearly emit bright light to the outside.

Through the above composition structure, the anti-snow device of the LED lamp of the present invention utilizes the luminous heat generated by the LED light-emitting unit 10 and conducts it to the external element 20 fixed on the outer lamp housing 40 via the heat-conducting element 30 On the other hand, the temperature of the outer element 20 itself and/or the outer lamp envelope 40 around it is increased, thereby increasing the temperature to melt the snow accumulated on the outer element or the outer lamp envelope 40 near the outer element, It is used to avoid the influence of snow accumulation on the lights or images displayed by the LED lighting unit 10 .

The above description is only a preferred embodiment of the present invention, and it is only illustrative of the present invention, rather than restrictive; those of ordinary skill in the art understand that it can be used within the spirit and scope defined by the claims of the present invention. Many changes, modifications, and even equivalent changes can be made, but all will fall within the protection scope of the present invention.

Claims (9)

1. A snow protection device for LED lamps, characterized in that it comprises: An LED light-emitting unit is set in an outer lamp housing to serve as a light source and display a light signal; An external component is arranged outside the LED lighting unit and fixed on the outer lamp housing; and At least one heat conduction element is connected to the LED light-emitting unit and the external element respectively, so that the luminous heat of the LED light-emitting unit is conducted to the external element through the heat conduction element; Wherein, the heat generated by the LED light emitting unit when emitting light is conducted to the external element through the heat conduction element, so that the temperature of the external element itself and/or the outer lamp housing near it increases. 2 . The anti-snow device for LED lights according to claim 1 , wherein at least one viewing window is provided on the outer lamp housing, through which the LED light-emitting unit can display a light signal to the outside. 3 . 3 . The anti-snow device for LED lights according to claim 1 , wherein the LED lighting unit comprises a circuit board, and a plurality of evenly arranged LEDs are coupled to the circuit board. 4 . 4 . The anti-snow device for LED lamps according to claim 1 , wherein the external element is made of a metal material with heat conduction effect. 5 . The anti-snow device for LED lights as claimed in claim 1 , wherein the heat conduction element is made of a material with a high thermal conductivity. 5 . 6. The anti-snow device for LED lamps as claimed in claim 1, wherein the material of the heat conduction element is selected from any one or two or more of aluminum, copper, and heat conduction adhesive materials. . 7. The anti-snow device for LED lights according to claim 1, characterized in that it is an anti-snow device for LED traffic signal lights. 8. The anti-snow device for LED lights according to claim 1, characterized in that it is an anti-snow device for LED warning lights. 9. The anti-snow device for LED lights according to claim 1, characterized in that it is an anti-snow device for LED lights.

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