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All-plastic LED bulb lamp for enhancing convection heat radiation

A technology for LED bulbs and LED light sources, applied in lampshades, lighting and heating equipment, components of lighting devices, etc., can solve the problems affecting the service life of LED bulbs, hindering the popularization of LED lamps, and increasing the cost of LED lamps. problem, to achieve good heat dissipation effect and luminous effect, shorten the molding cycle, and achieve the effect of low cost

Inactive Publication Date: 2016-06-29
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In current LED bulb lamps, the LED light source board is generally welded on the circuit board (or heat sink) by connecting multiple LED chips in series or in parallel. Because the LED chips need good heat dissipation, the existing LED bulbs The concentrated arrangement of LED chips in the bulb leads to unsatisfactory heat dissipation performance, which in turn affects the service life of the entire LED bulb lamp
With the rapid development of LED lighting technology, people have put forward various solutions for the heat dissipation of LED lighting lamps, and some even equip LED cooling fans or return-type cooling pipes, which undoubtedly greatly increases the cost of LED lamps and hinders LED lamps. popularization of

Method used

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  • All-plastic LED bulb lamp for enhancing convection heat radiation
  • All-plastic LED bulb lamp for enhancing convection heat radiation
  • All-plastic LED bulb lamp for enhancing convection heat radiation

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Experimental program
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Effect test

Embodiment Construction

[0019] see Figure 1 to Figure 3 , the all-plastic LED bulb lamp with enhanced convection heat dissipation includes a bulb shell 10, an LED light source module 20, a radiator 30 and a lamp holder 40 from top to bottom, the LED light source module 20 is arranged on the top surface of the radiator 30, and the bulb The bulb 10 is threaded on the top of the heat sink 30 and covers the LED light source module 20. The heat sink 30 includes a heat dissipation plate 31 and a hollow heat conduction cylinder 32 screwed under the heat dissipation plate 31. The heat conduction cylinder 32 is set as an upper opening It is trumpet-shaped with a wide lower opening and a narrow lower opening. The lower opening of the heat conduction tube 32 is screwed to the lamp cap 40 . The inner cavity of the heat conduction tube 32 also accommodates a driving power supply 50 . Radial heat dissipation fins 311 are uniformly distributed along the circumferential direction on the bottom of the heat dissipati...

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Abstract

The invention discloses an all-plastic LED bulb lamp for enhancing convection heat radiation. A heat radiation disc and a heat conduction barrel are arranged on a heat radiator, the heat radiation disc is provided with heat radiation vent holes, the heat conduction barrel is provided with convection holes, and therefore a chimney type convection effect is formed. Novel cooling fins are arranged at the bottom of the heat radiation disc and are of a special structure designed based on the topology principle according to heat source distribution, and the heat radiation performance of the bulb lamp can be effectively improved in cooperation with a chimney type convection structure. In the aspect of light emitting, by means of the LED bulb lamp, an LED light source module is directly welded to a PCB on the top face of the heat radiation disc, and meanwhile the top face of the heat radiation disc is arranged to be a free-form surface so that the requirement for the all-round light angle of the energy star can be met by distribution of light emitted by an LED chip. Meanwhile, the heat radiator of the LED bulb lamp is made of high heat conduction plastic, the production cost is reduced, and therefore the LED bulb lamp both has a good heat radiation effect and a good light emitting effect, and has the beneficial effect of being low in cost.

Description

technical field [0001] The invention relates to the field of heat dissipation of LED bulb lamps, in particular to an all-plastic LED bulb lamp with enhanced convection heat dissipation. Background technique [0002] LED (Light Emitting Diode) is a semiconductor that can convert electrical energy into light energy. Compared with traditional lamps, it has obvious advantages: no radiation, high luminous efficiency, low power consumption, long life and easy integration. The advantage is that it is a new generation of light source that leads to the lighting revolution and the upgrading of the traditional lighting industry. Especially in today's theme of energy saving, emission reduction and low-carbon environmental protection, semiconductor lighting has become a new economic growth point, so it has been highly valued by governments and industries. However, LED is an electroluminescent device. Under the action of external electric energy, only about 30-40% of the input electric e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/232F21V29/70F21V29/77F21V29/83F21V29/87F21K9/238F21V19/00F21V7/22F21V3/04F21V17/12F21Y115/10
CPCF21V29/70F21V3/062F21V7/22F21V17/12F21V19/0025F21V23/00F21V23/003F21V29/77F21V29/83F21V29/87
Inventor 郭震宁唐帆
Owner HUAQIAO UNIVERSITY
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