LED light source

Abstract

The invention discloses an LED light source, and belongs to the field of commercial illumination. The LED light source comprises PINs, a metal heat sink, an outer fluorescence glue layer, a blue lightLED chip, an inner-layer fluorescence glue layer and a white colloid; the PINs are installed at the two sides of the metal heat sink, the metal heat sink is arranged at the outer part of the white colloid and the outer fluorescence glue layer, the outer fluorescence glue layer is uniformly arranged at the periphery of the inner-layer fluorescence glue layer, the blue light LED chip is installed in the center of the metal heat sink, the inner-layer fluorescence glue layer is arranged at the periphery of the blue light LED chip, and the white colloid is located in the middle of the lower portion of the metal heat sink. The LED light source has the advantages that photochromism is good, the cost is low, the voltage is moderate, the heat stability is high, the service life is long, and the LED light source has a good light effect and is not dazzling.

Description

technical field [0001] The invention belongs to the field of commerce, and in particular relates to an LED light source used as a lighting device for a display cabinet when fresh meat is sold. Background technique [0002] In commercial activities, fresh meat, that is, pork, beef, and mutton are often eaten meat in people's daily life. Merchants often place these fresh meats in display cabinets and classify fresh meats from different parts to facilitate people For selection, most of the commonly used display cabinets are made of transparent materials around and on the top surface, and the upper part or the inner side can be opened; in order to attract customers and improve the appearance of fresh meat, fluorescent tubes with red pigments on the outside are often used and installed in the On the ceiling above the display cabinet, customers feel that the fresh meat sold is bright and attractive; because the fluorescent lamp is large in size and installed on the ceiling, it not...

AI Technical Summary

Problems solved by technology

[0002] In commercial activities, fresh meat, that is, pork, beef, and mutton are often eaten meat in people's daily life. Merchants often place these fresh meats in display cabinets and classify fresh meats from different parts to facilitate people For selection, most of the commonly used display cabinets are made of transparent materials around and on the top surface, and the upper part or the inner side can be opened; in order to attract customers and improve the appearance of fresh meat, fluorescent tubes with red pigments on the outside are often used and installed in the On the ceiling above the display cabinet, customers feel that the fresh meat sold is bright and attractive; because the fluorescent lamp is large in size and installed on the ceiling, it not only illuminates the display cabinet, but also illuminates the sales place in a red atmosphere, making people feel Uncomfortable, and due to uneven coloring and fading of the paint, the fresh meat sold is often irradiated to change the color, which causes a negative impact. At the same time, the fluorescent lamp consumes a lot of power and has a short service life, which increases the cost of use; The development of the LED light source refers to the LED light source as an electric light source light-emitting device, which has small size, light weight, long life, fast response, high color gamut, high brightness, impact resistance, strong shock resistance, and adjustable light color With the advantages of controllable, saturated and vivid colors, strong color reproduction, energy saving, and environmental protection, it is widely used in screen display, traffic signals, landscape outdoor lighting, interior decoration lighting and other fields; at present, most of the LED pink light sources use monochrome LED pink light , the main component of its core component chip is ALlnGaAs; this LED pink light source has the following defects: its production process is complicated and its production output and quality are not high, resulting in high cost; its voltage is 2.0±0.3V, and it can mix light in different colors When it is used, it is easy to cause damage due to low driving voltage; low light efficiency; glare; resulting in high application cost and short life during use, which is not conducive to energy saving

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