CN202310177U

CN202310177U - Novel LED lamp

Info

Publication number: CN202310177U
Application number: CN2011204384375U
Authority: CN
Inventors: 姚涛; 罗道振
Original assignee: WUHAN QUANHUA PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: WUHAN QUANHUA OPTOELECTRONICS TECHNOLOGY CO., LTD.
Priority date: 2011-11-08
Filing date: 2011-11-08
Publication date: 2012-07-04
Anticipated expiration: 2021-11-08

Abstract

The utility model discloses a novel LED lamp which includes a lamp holder, and a heat radiation housing, an aluminium substrate, and a light expanding cover which are connected in order from bottom to top. The inside of the heat radiation housing is provided with an electric connection device which includes a circuit board and a protective cover. One end of the circuit board is connected with the lamp holder, and the other end is connected with the aluminium substrate. An LED light source is welded on the aluminium substrate, and the LED light source is connected with the electric connection device via the aluminium substrate, and then is connected with the lamp holder for energization. The light source is connected with the heat radiation housing via the aluminium substrate for heat radiation. The advantages of the novel LED lamp are that: about 15% to 30% of the electric power is lost in the AC/DC conversion of a conventional DCLED, and the novel LED lamp solves the above problem, so the novel LED lamp is efficient and energy-saving, and is long in service lifetime and low in cost. An ACLED lamp is energy-saving and efficient, and has a long service lifetime and the excellent cost performance. The ACLED luminescence saves an expensive AC/DC converter and an expensive constant current source.

Description

A kind of Novel LED lamp

Technical field

The utility model relates to a kind of light fixture, especially a kind of Novel LED lamp.

Background technology

Led light source as green, energy-conservation, power saving, long-life the 4th generation lighting and be a dark horse, extensively receive to pay close attention to, develop rapidly in high gear.Present led light source is that ((semiconductor device of work of IF=200 → 1500mA) must provide the suitable direct current could be normally luminous to low-voltage for VF=2 → 3.6V), big electric current.The technology of direct current (DC) driving LED light source luminescent is more and more ripe; Because the power supply that our normal lighting uses is that (AC 100～220V) for high-voltage alternating; So must use the technology of step-down to obtain lower voltage, commonly used is transformer or Switching Power Supply step-down, will exchange (AC) then and be transformed into direct current (DC); Be transformed into dc constant current power supply again, just can impel led light source luminous.Therefore the system applies scheme of DC driven led light source must be: transformer+rectification (or Switching Power Supply)+constant-current source.Must have certain space to settle this module in the LED light fixture, but the space is very limited for the light fixture of E27 standard screw socket, is difficult to settle.No matter be that all can there be a certain amount of loss in system via transformer+rectification or Switching Power Supply step-down, about 15%～30% electric power was depleted when DC LED changed between interchange, direct current, and system effectiveness is difficult to accomplish more than 90%.

Adopting AC LED can effectively solve existing LED can't directly use under alternating current source, causes the higher shortcoming of product application cost.

The major technological breakthrough of AC led light source is the specific arrangement combination technique of ultra-fine LED crystal grain when encapsulation, utilizes the diode characteristic double as rectification of LED PN junction simultaneously, and manufacture of semiconductor is being played the part of considerable role therein.AC LED is integrated into a pile tiny crystal grains through manufacture of semiconductor, adopts staggered matrix form to arrange technology, and adds bridge circuit to chip design, but makes AC electric current two-way admittance, realizes luminous.The arrangement of crystal grain is as shown in Figure 1; Fig. 1 is that AC LED crystal grain adopts staggered matrix form to arrange sketch map; Right little figure is that actual AC LED crystal grain is arranged photo, and AC LED crystal grain exchanges the back electrified light emitting connecting, and therefore only needing two lead-in wires to import alternating current sources can luminous work.

Summary of the invention

The purpose of the utility model is to provide a kind of Novel LED lamp, solve traditional DC LED exchange, between the direct current during conversion about 15%～30% electric power be depleted, reach real high-efficiency energy-saving long-life and order problem cheaply.

The technical scheme of the utility model is: a kind of Novel LED lamp; This light fixture comprises that lamp holder is from bottom to top according to connecting radiating shell, aluminium base, expansion light shield; Be provided with arrangements of electric connection in the radiating shell; Arrangements of electric connection comprises wiring board and protective sleeve, wiring board one edge joint lamp holder, another edge joint aluminium base; Led light source is welded on the aluminium base, and led light source is connected to arrangements of electric connection by aluminium base and gets electricly again to lamp holder, and light source is connected to radiating shell heat radiation through aluminium base.LED lamp power device and light source are series relationship.The light source of LED light fixture adopts alternating current (AC) directly-powered mode.

The advantage of the utility model is: solve traditional DC LED exchange, between the direct current during conversion about 15%～30% electric power be depleted, it is low-cost to reach real high-efficiency energy-saving long-life life.AC LED light fixture have more energy saving, more long-lived, more the high performance-price ratio of efficiency arranged.Luminous high AC/DC transducer and the constant-current source of cost that saved of AC LED.

Description of drawings

Fig. 1 is the utility model STRUCTURE DECOMPOSITION sketch map;

Fig. 2 connects sketch map for the utility model circuit.

Embodiment

A kind of Novel LED lamp; This light fixture comprises that lamp holder 1 from bottom to top according to connecting radiating shell 2, aluminium base 3, expanding light shield 4, is provided with arrangements of electric connection in the radiating shell 2, and arrangements of electric connection comprises wiring board and protective sleeve; Wiring board one edge joint lamp holder 1, another edge joint aluminium base 3; Led light source is welded on the aluminium base 3, and led light source is connected to arrangements of electric connection by aluminium base 3 again must be electric to lamp holder 1, and light source is connected to the radiating shell heat radiation through aluminium base.LED lamp power device and light source are series relationship.The light source of LED light fixture adopts alternating current (AC) directly-powered mode.

Operation principle: adopt staggered matrix form to arrange technology a pile LED tiny crystal grains and be divided into five strings, AC LED crystal grain string is formed a similar rectifier bridge, and the two ends of rectifier bridge connect alternating current source respectively; Two ends connect a string LED crystal grain in addition; The positive half cycle that exchanges flows along blue path, and three string LED crystal grain are luminous, and negative half period flows along green path; There are three string LED crystal grain luminous again; LED crystal grain on four brachium pontis is luminous by turns, and the LED crystal grain on the brachium pontis is simultaneously luminous relatively, middle a string LED crystal grain because of shared always luminous.In the interchange of 60Hz, can rotate and light with the frequency of per second 60 times.The direct current that rectifier bridge is obtained is pulsating direct current; The luminous of LED also flashed, and LED has the characteristic of the continuous light of outage twilight sunset, and twilight sunset can keep tens microseconds; Because of the memory of human eye convection current moving light spot has inertia, human eye is continuously luminous to the mode of operation deciphering of the luminous+twilight sunset of led light source as a result.LED has half the time in work, have half the time having a rest, thereby heating is able to reduce 40%～20%.Therefore the useful life of AC LED is long than DCLED.

Claims

1. Novel LED lamp; It is characterized in that: this light fixture comprises that lamp holder from bottom to top according to connecting radiating shell, aluminium base, expansion light shield, is provided with arrangements of electric connection in the radiating shell, and arrangements of electric connection comprises wiring board and protective sleeve; Wiring board one edge joint lamp holder, another edge joint aluminium base; Led light source is welded on the aluminium base, and led light source is connected to arrangements of electric connection by aluminium base and gets electricly again to lamp holder, and light source is connected to radiating shell heat radiation through aluminium base.

2. according to the said Novel LED lamp of claim 1, it is characterized in that: LED lamp power device and light source are series relationship.

3. according to the said Novel LED lamp of claim 1, it is characterized in that: the light source of LED light fixture adopts alternating current (AC) directly-powered mode.