CN201811039U

CN201811039U - High efficiency light emitting diode (LED) daylight lamp device

Info

Publication number: CN201811039U
Application number: CN2010205175461U
Authority: CN
Inventors: 杨恒
Original assignee: Phico Precision Electronic Industy Shanghai Co Ltd
Current assignee: Phico Precision Electronic Industy Shanghai Co Ltd
Priority date: 2010-09-03
Filing date: 2010-09-03
Publication date: 2011-04-27
Anticipated expiration: 2020-09-03

Abstract

The utility model relates to a high efficiency light emitting diode (LED) daylight lamp device, which comprises an aluminum outer shell, a polycarbonate (PC) cover, an LED lamp board, an inductor and a drive. The aluminum outer shell comprises an outer shell body part, an outer shell neck part and an outer shell head part, which form a sealing cavity. The inductor and the drive are arranged in the sealing cavity. The outer shell body part is of an arc-shaped structure. The PC cover is connected with the outer shell neck part of the aluminum outer shell in a blocking manner. The outer shell head part comprises a left head end, a middle head end and a right head end. The left head end and the right head end are in a right angle shape. The middle head end is an isosceles trapezoid without a bottom line. The LED lamp board is arranged on an upper edge of the middle head end. A printed circuit board (PCB) routing on the LED lamp board is arranged at the center of the LED lamp board. Compared with the prior art, the utility model is convenient, safe, light, high-efficient and the like.

Description

The efficient LED daylight lamp apparatus

Technical field

The utility model relates to a kind of LED fluorescent lamp, especially relates to a kind of efficient LED daylight lamp apparatus.

Background technology

Traditional fluorescent lamp is used in large quantities in enterprise, market, school, office building, hospital and lighting of home, give we work and life brought greatly convenient.But because there are many intrinsic technical problems in traditional fluorescent lamp, as mercurous in the fluorescent tube, glass tube is frangible, the a large amount of non-ferrous metals of rectifier consumption, conversion efficiency is low, service life is short, there is stroboscopic etc. in light, with our present energy-saving and environmental protection theory of advocating difference to some extent, therefore along with the development of LED technology and technology, will there be the possibility of being replaced in a large number.

Present use amount maximum, the widest illuminating product of face is no more than the T8 straight tube fluorescent lamp, and wherein the overwhelming majority adopts inductance type ballasts, its mature and reliable that possesses skills, the life-span is long, and is cheap, advantages such as simple is installed, thereby widely adopted.But the energy consumption height of himself, caloric value is big, power factor is low, needs the extra reactive-load compensation that increases, and has drawbacks such as stroboscopic (light pollution) and noise.In electric power and today of being becoming tight energy day, it is carried out reducing energy consumption, imperative.

Novel LED fluorescent lamp adopts super bright white light LEDs as light emitting source, and shell is aluminium or PC material.The LED fluorescent lamp is all the same on external form, size, bore with traditional fluorescent lamp, and length has 60cm, 120cm and 150cm etc. multiple, and its power is respectively 8W to 20W and does not wait; And 20W traditional fluorescent lamp (Inductive ballast) actual power consumption is about 36W, and 40W traditional fluorescent lamp (Inductive ballast) actual power consumption is about 54W; 8W LED fluorescent lamp brightness and the brightness of traditional 20W fluorescent lamp are as good as, and 15W LED fluorescent lamp is the same with the brightness of traditional 40W fluorescent lamp, and the brightness of LED fluorescent lamp especially seems softer, more makes people acceptant.The service life of LED fluorescent lamp is generally about 30,000 hours.Supply voltage is 85VAC～264VAC (or 110VAC/230VAC), need not to use starter and ballast, has to start fast, power consumptive province, no stroboscopic, be not easy to produce visual fatigue.Its not only superpower energy-conservation and more environmental protection is one of product of national green energy conservation illuminating engineering focus development, is the major product that replaces traditional fluorescent lamp at present.

It is very simple that the LED fluorescent lamp is installed, and for inductance rectification type fluorescent lamp, during installation original fluorescent lamp taken off and change the LED fluorescent lamp, and ballast and starter are taken away, and allows the 220V electric main directly be added to LED fluorescent lamp two ends and get final product; Then whole rectifier must be pulled down for electronic rectifier type fluorescent lamp, be correspondingly processed then.

The LED fluorescent lamp energy-saving is up to more than 60%, life-span is more than 10 times of common fluorescent tube, almost be non-maintaining, do not have the problem that often to change fluorescent tube, ballast, starter, just can gain cost for the expense of pact more piece half a year provinces such as factory that used in 24 hours or convenience store.The semi-conductor electricity light source of environmental type, light is soft, and spectroscopic pure helps workman's sight protectio and healthy, and the cold light source of 6000K is given the visually refrigerant impression of people, helps to concentrate on, and raises the efficiency.

At present, in the T8LED fluorescent lamp, no matter be to isolate and non-isolation method, employed type of drive mainly contains 1. built-in driving, 2. external drives; Built-in driver is directly driver to be fit in the LED fluorescent lamp lamp housing, therefore has easy to install, flexible characteristic.Yet (mainly being height) institute limit because LED fluorescent lamp lamp housing inner space, so requires driver preferably to have the pattern of isolation, otherwise when applying for safety because of isolation distance limit, can't meet the demands.

Just because of be subjected to LED fluorescent lamp lamp housing limitation in height, the switch transformer of isolated driver is difficult to engineering demands at aspects such as conversion efficiency, thermal diffusivity, costs.Non-driver for isolating has that circuit structure is simple, cost is low, the conversion efficiency advantages of higher, is therefore used in large quantities in the T8LED fluorescent lamp.Yet,, be difficult for testing by safety just because of therefore the non-isolation electric of non-driver for isolating in use exists potential safety hazard.

Summary of the invention

The purpose of this utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of convenience,

Safe, in light weight, efficient LED daylight lamp apparatus efficiently.

The purpose of this utility model can be achieved through the following technical solutions:

A kind of efficient LED daylight lamp apparatus, comprise the aluminium shell, the PC cover, the LED lamp plate, inductor, driver, described aluminium shell comprises outer body portion, the shell neck, case head, described outer body portion, the shell neck, case head forms annular seal space, described inductor, driver is arranged in close cavity, described outer body portion is an arcuate structure, the shell neck clamping of described PC cover and aluminium shell, it is characterized in that, described case head comprises left head end, middle head section, right head end, described left head end, right head end is square, the head section is not for there being the isosceles trapezoid on base in described, on the top of head section, the PCB cabling on the described LED lamp plate was located at central authorities on the LED lamp plate during described LED lamp plate was installed in.

The width of described PCB cabling is 16mm.

Distance between the inward flange of the left head end projection of described case head and the PCB cabling left side outward flange is greater than 5mm.

The vertical range of middle head section top margin from the base of described case head is 2mm.

Ultimate range between the inward flange of the right head end projection of the inward flange of the left head end projection of described case head and the case head of aluminium shell is greater than 23mm.

Described driver can be non-driver for isolating.

Described driver can be driver for isolating.

Compared with prior art, the utlity model has following advantage:

1, adopts non-isolation drive mode, can guarantee to have very high conversion efficiency and low material cost like this, but the structure by changing the aluminium shell and the cabling mode of LED lamp plate (PCB) satisfy the requirement of safety, thus realize novel, efficiently, product cheaply.

2, both can adopt the driver of isolation method, also can adopt the driver of non-isolation method, convenience, safety, low cost have brought unlimited application prospect for a large amount of uses of following LED fluorescent lamp.

Description of drawings

Fig. 1 is the structural representation of existing T8LED fluorescent lamp;

Fig. 2 is the structural representation of the LED lamp plate of existing T8LED fluorescent lamp;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is the structural representation of LED lamp plate of the present utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

Embodiment

As shown in Figure 1 and Figure 2, existing T8LED fluorescent lamp comprises aluminium shell 1, PC cover 2, LED lamp plate 3, inductor 4, built-in driver 5.

When reality is used because the requirement of safety EN61347-2-13, between the PCB cabling 6 in the LED lamp plate and the aluminium shell 1 must greater than 5mm along the face safe distance, could be by the test request of safety such as CE, thus assurance user's safety.

The maximum gauge of T8 fluorescent lamp is Φ 30mm among Fig. 1, adopt the structure of 1/2 aluminium shell, 1/2PC cover, therefore at aluminium shell and LED lamp plate junction ultimate range＜21mm, and not only to place LED on the LED lamp plate, and cabling to be set, therefore cause the creepage distance＜5mm between the contact point of the PCB cabling of LED lamp plate and aluminium shell, so can not satisfy the requirement of safety to the electrical safety distance.At this moment the mode that adopts usually is exactly directly to use built-in isolated driving or adopt external to drive.

As Fig. 3, shown in Figure 4, efficient LED daylight lamp apparatus of the present utility model, comprise aluminium shell 1, PC cover 2, LED lamp plate 3, inductor 4, driver 5, described aluminium shell 1 comprises outer body portion 11, shell neck 12, case head, described outer body portion 11, shell neck 12, case head forms annular seal space, described inductor 4, driver 5 is arranged in close cavity, described outer body portion 11 is an arcuate structure, shell neck 12 clampings of described PC cover 2 and aluminium shell 1, the case head of described aluminium shell 1 comprises left head end 131, middle head section 132, right head end 133, described left head end 131, right head end 133 is square, head section 132 is not for there being the isosceles trapezoid on base in described, described LED lamp plate 3 is installed on the top of middle head section 132, the PCB cabling 6 on the described LED lamp plate 3 ' be located on the LED lamp plate 3 central.

Can see clearly that from Fig. 3 we mainly adopt 2 kinds of methods to realize that creepage distance between the contact point of the PCB cabling of LED lamp plate and aluminium shell is greater than the requirement of 5mm.Aluminium shell among Fig. 11 is given and the place to go with LED lamp plate 3 buckle places, and will be prolonged 2mm on the primary plane part, thereby the ultimate range of LED lamp plate junction is expanded to＞23 (creepage distance) mm, be one; Its two, improve LED lamp plate 3PCB cabling 6 ', the cable run distance in Fig. 1 structure is compressed to 16mm (cable run distance can not infinitely compress in the LED lamp plate, requires otherwise the Copper Foil of PCB can't bear current density) by 18mm.

Aforesaid way one and mode two integrated uses, can guarantee the PCB cabling 6 of LED lamp plate ' and the aluminium shell between safe creepage distance greater than 5mm, thereby satisfy the requirement of EN61347-2-13 etc.

Claims

1. efficient LED daylight lamp apparatus, comprise the aluminium shell, the PC cover, the LED lamp plate, inductor, driver, described aluminium shell comprises outer body portion, the shell neck, case head, described outer body portion, the shell neck, case head forms annular seal space, described inductor, driver is arranged in close cavity, described outer body portion is an arcuate structure, the shell neck clamping of described PC cover and aluminium shell, it is characterized in that, described case head comprises left head end, middle head section, right head end, described left head end, right head end is square, the head section is not for there being the isosceles trapezoid on base in described, on the top of head section, the PCB cabling on the described LED lamp plate was located at central authorities on the LED lamp plate during described LED lamp plate was installed in.

2. a kind of efficient LED daylight lamp apparatus according to claim 1 is characterized in that the width of described PCB cabling is 16mm.

3. a kind of efficient LED daylight lamp apparatus according to claim 1 is characterized in that, the distance between the inward flange of the left head end projection of described case head and the PCB cabling left side outward flange is greater than 5mm.

4. a kind of efficient LED daylight lamp apparatus according to claim 1 is characterized in that, the vertical range of middle head section top margin from the base of described case head is 2mm.

5. a kind of efficient LED daylight lamp apparatus according to claim 1 is characterized in that, the ultimate range between the inward flange of the right head end projection of the inward flange of the left head end projection of described case head and the case head of aluminium shell is greater than 23mm.

6. a kind of efficient LED daylight lamp apparatus according to claim 1 is characterized in that, described driver can be non-driver for isolating.

7. a kind of efficient LED daylight lamp apparatus according to claim 1 is characterized in that described driver can be driver for isolating.