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Panel lamp and working method thereof

A working method and panel light technology, which is applied in the direction of electric lamp circuit layout, lighting device cooling/heating device, lighting and heating equipment, etc., can solve the problems of squeezing light source, LED damage, and reducing the service life of light source, so as to improve reliability Sexuality, prolonging life, and avoiding damage to the light source

Active Publication Date: 2015-03-25
HAINING BOHUA LIGHTING ELECTIRCAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a high-efficiency light source, the LED generates a very concentrated heat, and the large amount of heat generated is transmitted to the light guide plate, and the light guide plate expands, which in turn squeezes the light source, causing damage to the LED and reducing the service life of the light source.

Method used

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  • Panel lamp and working method thereof
  • Panel lamp and working method thereof
  • Panel lamp and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] image 3 Schematically shows the basic structural diagram of the panel light of Embodiment 1 of the present invention, as image 3 As shown, the panel lights include:

[0039] A frame 11, a light source 21 and a light guide plate 31, the light source 21 is arranged on the inner wall of the frame 11, the light guide plate 31 is embedded in the frame 11, and is arranged opposite to the light source 21;

[0040] A distance detection module 41, the distance detection module is used to detect the distance between the light source and the light guide plate, and transmits to the control module; the distance detection module can use optical fiber grating displacement sensor, photoelectric displacement detection and other modules;

[0041] A control module, the control module is used to adjust the working parameters of the light source, such as the working current, according to the received distance information, so as to reduce the calorific value of the light source.

[0042]...

Embodiment 2

[0048] An application example of the panel light and its working method described in Embodiment 1 in the lighting field.

[0049] In this application example, LED is used as the light source, and piezoelectric crystal is used as the distance detection module. By detecting the charge of the piezoelectric crystal, the deformation of the piezoelectric crystal can be obtained, so as to obtain the distance between the light guide plate and the LED.

[0050] The working method of the above panel light is:

[0051] (A1) The LED is powered on, and the panel light works;

[0052] (A2) The heat generated by the LED is conducted to the light guide plate, and the light guide plate expands, shortening the distance between the light guide plate and the LED, that is, the piezoelectric crystal is squeezed and deformed;

[0053] (A3) Detecting the charge of the piezoelectric crystal, knowing the deformation of the piezoelectric crystal (corresponding to the expansion of the light guide plate)...

Embodiment 3

[0059] An application example of the panel light and its working method described in Embodiment 1 in the lighting field. The difference from Embodiment 2 is that the distance detection module adopts a fiber grating displacement sensor.

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Abstract

The invention provides a panel lamp which comprises a frame, light sources and a light guiding plate. The light sources are arranged on the inner wall of the frame, the light guiding plate is embedded in the frame, and the light guiding plate and the light sources are oppositely arranged. The panel lamp further comprises distance detection modules which are used for detecting the distance between the light sources and the light guiding plate and transmitting the distance to a control module, and the control module. The control module is used for adjusting the working parameters of the light sources according to the received distance information. The panel lamp and the working method of the panel lamp have the advantages that functions are comprehensive, cost is low, and achieving is convenient.

Description

technical field [0001] The invention relates to a lamp, in particular to a panel lamp and its working method. Background technique [0002] As an energy-saving and high-efficiency light source, LED is widely used in various lighting and analysis equipment, such as panel lights. [0003] figure 1 A schematic diagram of the structure of the panel light is given schematically, such as figure 1 As shown, the panel light includes a frame, a light guide plate and LEDs, the LEDs are fixed on the inner wall of the frame, and the light guide plate is inserted into the frame, opposite to the LEDs, as figure 2 shown. In order to enhance the light guiding effect and improve the light extraction efficiency, the distance between the light guiding plate and the light source should be as short as possible. There are some deficiencies in this panel light, such as: [0004] As a high-efficiency light source, the LED generates very concentrated heat, and a large amount of heat generated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V8/00F21V23/00F21V29/503H05B37/02F21Y101/02
CPCF21S2/00F21V23/00F21Y2101/00H05B47/105Y02B20/40
Inventor 王通明贺和好
Owner HAINING BOHUA LIGHTING ELECTIRCAL APPLIANCE CO LTD