CN203258489U - LED illumination single body and LED lamp - Google Patents

Abstract

The utility model relates to an LED lamp, comprising an LED light source, a side light-emitting lens, and a reflective cup. The side light-emitting lens is embedded in the reflective cup. superior. In the LED lamp of the present utility model, the distance between the light-incident surface of the side-emitting lens and the center point of the LED light-emitting source within 60 degrees clockwise of the central reference optical axis of the side-emitting lens is monotonously decreasing, and the reflective surface of the reflective cup is along the The distance between the bottom surface of the side-emitting lens and the central reference optical axis of the side-emitting lens within 30 degrees in the counterclockwise direction is monotonically increasing, changing the light emission direction of the LED light source, and refracting the strong light near the central base axis to the reflector. Then gather and emit light from the inner wall of the reflective cup at a small angle in a direction parallel to the central base axis, so that the LED lamp can be used for long-distance lighting.

Description

An LED lighting unit and an LED lamp

【Technical field】

The utility model relates to LED lighting technology, in particular to an LED lighting unit and an LED lamp for realizing long-distance lighting. the

【Background technique】

With the development of LED application technology, LED lamps are becoming the main product in the new generation lighting market due to their high efficiency, energy saving, long life, and compactness, and they will effectively stimulate the rapid development of the environmental protection and energy saving industry. LED lamps are widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes; however, due to their insufficient brightness and irradiation distance, LED lamps have not been used in trains, subways and car lights in the automotive market. Widely used, and the use of LED lamps in the future is an inevitable trend of development. the

Since the luminous characteristics of the LED show a Lambertian distribution, that is to say, the light intensity on the central axis is the largest, that is, strong light; the light intensity gradually decreases off the central axis, that is, weak light. However, traditional LED lamps use a reflector structure and only use weak light off the central axis, resulting in most of the strong light being missed and unable to achieve long-distance lighting. Therefore, how to effectively utilize LEDs to realize LED lamps for long-distance lighting has become an urgent problem to be solved. the

【Content of utility model】

The technical problem to be solved by the utility model is that the traditional LED lamp adopts a reflective cup structure, and due to the use of weak light deviated from the central axis, most of the strong light is missed, and long-distance lighting cannot be realized. the

To this end, the utility model provides an LED lighting unit on the one hand, including an LED light source, a side-emitting lens, and a reflective cup, the side-emitting lens is embedded in the reflective cup, and the light-emitting surface of the side-emitting lens Facing the opening direction of the reflector cup, the LED light source is installed below the bottom surface of the side-emitting lens and is located on the central reference optical axis of the side-emitting lens, and the incident surface of the side-emitting lens is along the central reference light axis of the side-emitting lens. The distance from the center point of the LED light source within 60 degrees in the clockwise direction of the axis is monotonically decreasing, and the reflective surface of the reflective cup is along the bottom surface of the side emitting lens within 30 degrees in the counterclockwise direction and the center reference optical axis of the side emitting lens The distance is monotonically increasing. the

Further, a heat dissipation component is also included, and the heat dissipation component is arranged at the bottom of the reflective cup. the

Further, the LED light source includes at least one LED. the

Further, the LED is packaged by high-power COB. the

At the same time, another aspect of the utility model also provides an LED lamp, including an LED lighting unit and a housing, the LED lighting unit is arranged in the housing, and the LED lighting unit includes an LED light source, a side-emitting lens , a reflective cup, the side-emitting lens is embedded in the reflective cup, and the light-emitting surface of the side-emitting lens faces the opening direction of the reflective cup, and the LED light-emitting source is installed below the bottom surface of the side-emitting lens and located On the central reference optical axis of the side-emitting lens, the distance between the incident surface of the side-emitting lens and the center point of the LED light source within 60 degrees in the clockwise direction along the central reference optical axis of the side-emitting lens is monotonically decreasing. The distance between the reflective surface of the cup and the central reference optical axis of the side light emitting lens within 30 degrees counterclockwise along the bottom surface of the side light emitting lens is monotonously increasing. the

Further, there are 10 LED lighting units, among which 8 LED lighting units are arranged in a circle along the periphery of the housing, and 2 LED lighting units are arranged in the circle. the

In the LED lamp of the present utility model, the distance between the light-incident surface of the side-emitting lens and the center point of the LED light-emitting source within 60 degrees clockwise of the central reference optical axis of the side-emitting lens is monotonously decreasing, and the reflective surface of the reflective cup is along the The distance between the bottom surface of the side-emitting lens and the central reference optical axis of the side-emitting lens within 30 degrees in the counterclockwise direction is monotonically increasing, thereby changing the light emitting direction of the LED light source, and converting most of the light, especially the strong light near the central base axis. The light is refracted to the reflective cup, and then gathered and emitted from the inner wall of the reflective cup in a direction parallel to the central base axis at a small angle, so that the LED lamp can be used for long-distance lighting. the

【Description of drawings】

Fig. 1 shows a schematic structural view of the LED lighting unit of the present invention. the

Fig. 2 shows a schematic diagram of the arrangement of the high beam lamp array of the LED lamp of the present invention. the

Fig. 3 shows a top view of the arrangement of the high beam lamp array of the LED lamp of the present invention. the

Reference signs:

1. Side-emitting lens; 2. LED light source; 3. Reflector cup; 4. Heat dissipation component; 1a, light incident surface of side-emitting lens; 1b, light-emitting surface of side-emitting lens; L, outgoing light; Z, reference optical axis

【Detailed ways】

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail. the

Referring to Fig. 1, the utility model provides an LED lighting unit 10, comprising an LED light source 2, a side-emitting lens 1, and a reflective cup 3, the above-mentioned side-emitting lens 1 is embedded in the above-mentioned reflective cup 3, and the above-mentioned side-emitting The light-emitting surface of the lens 1 faces the opening direction of the reflector cup 3. The above-mentioned LED light source 2 is installed below the bottom surface of the side-emitting lens 1 and is located on the center reference optical axis of the side-emitting lens 1. The incident surface of the above-mentioned side-emitting lens 1 The distance between the central reference optical axis of the side-emitting lens 1 and the center point of the LED light-emitting source 2 within 60 degrees in the clockwise direction is monotonically decreasing, and the reflection surface of the above-mentioned reflective cup 3 is along the counterclockwise direction of the bottom surface of the side-emitting lens 1. The distance from the central reference optical axis of the side-emitting lens 1 within a degree is monotonously increasing. the

The LED lighting unit 10 provided by the utility model, the distance between the light-incident surface of the side-emitting lens 1 and the center point of the LED light-emitting source 2 within 60 degrees clockwise along the central reference optical axis of the side-emitting lens 1 is monotonically decreasing The distance between the reflective surface of the reflector 3 and the central reference optical axis of the side-emitting lens 1 within 30 degrees along the counterclockwise direction of the bottom surface of the side-emitting lens 1 is monotonously increasing, and then changing the light emission direction of the LED light source 2 will greatly Part of the light, especially the strong light near the central base axis, is refracted onto the reflective cup 3, and then gathered and emitted at a small angle from the inner wall of the reflective cup 3 along the direction parallel to the central base axis to realize long-distance lighting of LEDs. the

The LED lighting unit 10 of the present invention further includes a heat dissipation component 4 , and the heat dissipation component 4 is arranged at the bottom of the reflective cup 3 . The heat of the LED lighting unit 10 can be effectively dissipated through the heat dissipation component 4, thereby improving the service life of the LED. the

The above-mentioned LED light source 2 includes at least one LED, and the above-mentioned LED is arranged on the drive unit (not shown in the figure); the above-mentioned LED is installed below the bottom surface of the side-emitting lens 1 (that is, the side near the bottom of the reflective cup 3) , and is located on the reference optical axis of the center of the side-emitting lens 1; the LED light-emitting source of the present invention can also include 2 LEDs, 3 LEDs, 4 LEDs, etc., by increasing the number of LEDs, the luminous intensity of the LED light-emitting source can be improved . the

In the LED lighting unit 10 of the present invention, the above-mentioned LEDs are integrated and packaged by high-power COB, which can effectively improve the consistency and uniformity of exiting. the

On the other hand, the utility model also provides an LED lamp, as shown in Fig. The monomer 10 includes an LED light source 2, a side-emitting lens 1, and a reflective cup 3. The above-mentioned side-emitting lens 1 is embedded in the above-mentioned reflective cup 3, and the light-emitting surface of the above-mentioned side-emitting lens 1 faces the opening direction of the reflective cup 3. The above-mentioned LED The light-emitting light source 2 is installed below the bottom surface of the side-emitting lens 1 and is located on the central reference optical axis of the side-emitting lens 1. The distance from the central point of the LED light source 2 within 1 degree is monotonically decreasing, and the distance between the reflective surface of the above-mentioned reflective cup 3 along the counterclockwise direction of the bottom surface of the side light emitting lens 1 and the center reference optical axis of the side light emitting lens 1 is: monotonically increasing. the

As shown in Figure 1, in the LED lamp of the present invention, the side-emitting lens 1 changes the direction of the outgoing light L of the LED light source 2, and changes the outgoing light L to a direction close to the direction perpendicular to the central reference optical axis Z, so that The incident light L is refracted, and the outgoing light L of the LED light source 2 enters the incident surface 1a of the side-emitting lens 1. After propagating inside the side-emitting lens 1, it exits from the light-emitting surface 1b of the side-emitting lens to the outside, and then enters the reflective cup The inner wall of 3 refracts toward the Z-axis direction. the

10 LED lighting units 10 of the LED lamp of the present invention can be used, wherein, 8 of the above-mentioned LED lighting units 10 are arranged to form a circle along the periphery of the housing 20, and 2 of the above-mentioned LED lighting units 10 are arranged in the above-mentioned circle , that is to say, the above-mentioned LED lighting unit 10 in the housing 20 has a two-layer structure inside and outside. The luminous intensity of the LED lamps can be effectively improved through the arrangement of the plurality of LED lighting units 10 in inner and outer layers. the

In the LED lamp of the present utility model, the distance between the light-incident surface of the side-emitting lens 1 and the center point of the LED light-emitting source 2 within 60 degrees in the clockwise direction of the central reference optical axis of the side-emitting lens 1 is monotonously decreasing, and the reflective cup 3 The distance between the reflective surface of the reflective surface and the central reference optical axis of the side-emitting lens 1 within 30 degrees in the counterclockwise direction of the bottom surface of the side-emitting lens 1 is monotonically increasing, thereby changing the light emission direction of the LED light source 2, and converting most of the light, especially The strong light near the central base axis is refracted onto the reflector 3, and then gathered and emitted at a small angle from the inner wall of the reflector 3 along the direction parallel to the central base axis, so that the LED lamps can be used for long-distance lighting. the

The specific embodiments of the utility model described above do not constitute a limitation to the protection scope of the utility model. Any other corresponding changes and deformations made according to the technical concept of the utility model shall be included in the protection scope of the claims of the utility model. the

Claims (6)

1. A LED lighting unit, characterized in that it comprises an LED light source, a side light emitting lens, and a reflective cup, the side light emitting lens is embedded in the reflective cup, and the LED light emitting source is installed on the bottom surface of the side light emitting lens and located on the central reference optical axis of the side-emitting lens, the distance between the incident surface of the side-emitting lens and the center point of the LED light source within 60 degrees clockwise along the central reference optical axis of the side-emitting lens is monotonous The distance between the reflective surface of the reflective cup and the central reference optical axis of the side-emitting lens within 30 degrees in the counterclockwise direction of the bottom surface of the side-emitting lens is monotonously increasing. 2. The LED lighting unit according to claim 1, further comprising a heat dissipation component, and the heat dissipation component is arranged at the bottom of the reflector cup. 3. The LED lighting unit according to claim 1, wherein the LED light source comprises at least one LED. 4. The LED lighting unit according to claim 3, wherein the LED is packaged by a high-power COB. 5. An LED lamp, comprising the LED lighting unit and a housing according to any one of claims 1-4, the LED lighting unit being arranged in the housing. 6. The LED lamp according to claim 5, wherein the number of said LED lighting units is 10, among which, 8 said LED lighting units are arranged in a circle along the periphery of said housing, and 2 are set The LED lighting unit is arranged in the circle.

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