Non-interface light source for refrigerator and manufacturing process of non-interface light source

Abstract

The invention discloses a non-interface light source for a refrigerator and a manufacturing process of the non-interface light source, and relates to the technical field of refrigerators. The non-interface light source comprises a glass light guide plate, a glass diffusion sheet, a reflector plate, an LED lamp, two LED lamp U-shaped cover plates and two L-shaped sealing strips; a light guide dot is arranged on one side surface of the glass light guide plate; the glass diffusion sheet is stuck on the front side of the glass light guide plate; and the reflector plate is stuck on the back side ofthe glass light guide plate. A light guide assembly comprises the glass light guide plate, the glass diffusion sheet, the reflector plate and the LED lamp, and is not likely to deform, and wet air flow does not permeate into the light guide assembly, the expanding problem of the light guide assembly, which is caused by the fact that the inner part of the light guide assembly is maintained in thewet air flow state for a long time, is avoided, the durability of the light guide assembly is improved, and the plane unbending continuity of a surface light source is maintained.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a non-interface light source for refrigerators and a manufacturing process thereof. Background technique [0002] At present, the volume of high-end refrigerator refrigerators is constantly increasing, and the lighting of refrigerators has changed from traditional top lighting to back large-area surface light source lighting. The lighting range is large, there is no lighting dead angle, and the illumination is uniform; the refrigerator room adopts rear large-area surface light source lighting. Lighting has become a development trend. The current surface light source mostly uses PMMA light guide plate and PS diffuser to realize surface light source lighting; however, the expansion coefficient of PMMA light guide plate and PS diffuser is high, it is easy to deform when it is cold or heated, and there is an air outlet on the back of the refrigerator; low temperatur...

AI Technical Summary

Problems solved by technology

The current surface light source mostly uses PMMA light guide plate and PS diffuser to realize surface light source lighting; however, the expansion coefficient of PMMA light guide plate and PS diffuser is high, it is easy to deform when it is cold or heated, and there is an air outlet on the back of the refrigerator; low temperature and high humidity For the patch type PMMA surface light source, the airflow is easy to invade the inside of the light source

At the same time, the strength of the PMMA light guide plate is much lower than that of glass. The large-area light source composed of the PMMA light guide plate and the PS diffuser plate has the defect of being easily bent and deformed. Therefore, it must be surrounded by a frame to support and fix it.

[0003] In the original process plan of PMMA with framed surface light source: reflective paper, PMMA board, diffusion film and film sheet are used; and double-sided adhesive tape is used to seal between layers, and the material is easy to wrinkle; Dust, miscellaneous particles, and water droplets that affect the look and feel; surface light sources often have water ingress in refrigerator residual frost and frost blocking experiments

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