CN202955515U

CN202955515U - LED bulb

Info

Publication number: CN202955515U
Application number: CN2012205554965U
Authority: CN
Inventors: 姜建明; 蔡伟
Original assignee: ZHEJIANG MINGXIN SEMICONDUCTOR TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG MINGXIN SEMICONDUCTOR TECHNOLOGY Co Ltd
Priority date: 2012-10-26
Filing date: 2012-10-26
Publication date: 2013-05-29
Anticipated expiration: 2022-10-26

Abstract

An LED bulb comprises a transparent glass shade, a plastic shell with an air channel, a lamp holder, a ceramic support set with an LED chip packaged inside, a driver and a circuit board. The LED bulb is characterized in that ceramic supports which are rectangular are disposed on the circuit board and are evenly distributed at the center of the glass shade, and the LED chip adhered on the ceramic supports by adhesive is fixedly welded to a conducting layer of the circuit board through connection pins of the ceramic supports.

Description

The LED bulb

Technical field

The utility model relates to a kind of LED bulb, particularly the few high-efficiency LED lamp bulb of a kind of high light efficiency light loss, can directly replace incandescent lamp and electricity-saving lamp, for illumination.

Background technology

The bulb lamp that at present has on the market varied room lighting to use, as traditional incandescent lamp, electricity-saving lamp, its technology is relative with production technology ripe, contour structures is basicly stable, difference is little, incandescent lamp is that standard lamp head adds pyriform clear glass lampshade, inner vacuum, the tungsten filament electrified light emitting, electricity-saving lamp is that standard lamp head adds fluorescent tube, some difference of the shape of fluorescent tube, have U-shapedly, spiral like that, rare gas is arranged in fluorescent tube, increase its illumination effect, incandescent lamp and electricity-saving lamp are also current most popular indoor lamps.

Many producers LED bulb lamp that also releases one after another on the market now, their bulb lamp contour structures and principle are all similar, are all that standard lamp head adds the cast aluminium radiator, then add last cloche at the top of radiator.

Existing conventional bulb, energy consumption is high, and service life is short, and light decay is more serious, and not environmental protection, some traditional energy-saving lamp also contain the with serious pollution materials such as mercury, and health and environment is caused to harmful effect.And LED bulb lamp in the market, although solved energy-saving and environmental protection, long problem of life-span, its outward appearance is more general, and internal structure is simple, and lighting angle is little, and illumination zone has limitation.

Summary of the invention

The purpose of this utility model is the technological deficiency existed for existing LED bulb lamp, combine the advantage of conventional bulb and LED lighting device, effectively utilize the heat conductive insulating ceramic material, propose that a kind of high light efficiency, light loss are few, the high-efficiency LED lamp bulb of good looking appearance.

The purpose of this utility model completes by following technical solution, it comprises: a glass lamp shade printing opacity, the candle shape, plastic cement with ventilation slot lamp housing and lamp holder, one group of ceramics bracket that is packaged with LED chip, driver and circuit board, described ceramics bracket is the rectangle sheet, be installed on circuit board and be evenly distributed on the centre of glass lamp shade, the LED chip that sticks with glue knot on ceramics bracket is welded and fixed by the connection pin on ceramics bracket and the conductive layer on circuit board.

Described one group of ceramics bracket consists of three semitransparent ceramics substrates, their pyramids triangular in shape or vertical-shapedly evenly be fixedly mounted on circuit board around arrangement mode, scribble fluorescent material on LED chip on ceramics bracket, and also scribble the thin fluorescent material of one deck at the substrate back of described ceramics bracket.

Described circuit board is metal-based circuit board or common epoxy radicals circuit board, is provided with the passage that can be dispelled the heat to hot gas in glass lamp shade on circuit board.

Described three ceramic substrates are connected together with mutually relying on, form cone-shaped, and lighting angle is and is greater than the well-balanced distribution of 300 degree.

The utlity model has the exquisite characteristics such as the product lighting angle is even and attractive in appearance, and light efficiency is high, and light loss is few of candle shape.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is another kind of structural representation of the present utility model.

Fig. 3 is another structural representation of the present utility model.

Fig. 4 is another structural representation of the present utility model.

Fig. 5 is the structural representation of other embodiment of the utility model.

Fig. 6 is another kind of example structure schematic diagram of the present utility model.

Label represented in figure is: 1, glass lamp shade, 2, ceramics bracket, 3, LED chip, 4, circuit board, 5, driver, 6, the plastic cement lamp housing, 7, lamp holder.

The specific embodiment

Below in conjunction with Fig. 1-6 pair the utility model, be described in detail: the utility model comprises: glass lamp shade 1 printing opacity, the candle shape, plastic cement with ventilation slot lamp housing 6 and lamp holder 7, one group of ceramics bracket 2 that is packaged with LED chip 3, driver 5 and circuit board 4, described ceramics bracket 2 is the rectangle sheet, be installed on circuit board 4 and be evenly distributed on the centre of glass lamp shade 1, the LED chip 3 that sticks with glue knot on ceramics bracket 2 is welded and fixed by the connection pin on ceramics bracket and the conductive layer on circuit board 4.

One group of ceramics bracket 2 shown in figure consists of three semitransparent ceramics substrates, their pyramids triangular in shape or vertical-shapedly evenly be fixedly mounted on circuit board 4 around arrangement mode, scribble fluorescent material on LED chip 3 on ceramics bracket 2, and also scribble the thin fluorescent material of one deck at the substrate back of described ceramics bracket 2.

Described circuit board 4 is metal-based circuit board or common epoxy radicals circuit board, is provided with the passage that can be dispelled the heat to hot gas in glass lamp shade on circuit board 4.

Embodiment:

The utility model includes 1, one lamp housing of the plastic cement with ventilation slot of candle shape glass lamp shade 6 of a printing opacity, three translucent ceramics brackets 2 and is packaged with LED chip 3, circuit board 4, a driver 5; Described three translucent ceramics brackets 2 are 0.2mm-1.0mm, ceramics bracket 2 flatness are high, stick with glue and connect LED chip 3, bonding solid and reliable, pottery has insulating properties, stamps after gold thread insulating properties stable, on LED chip 3, scribbles fluorescent material, and also scribble the fluorescent material of thin layer at the ceramic substrate back side, make that the LED light source bar is photochromic to keep consistency; The ceramic substrate translucent, all emit beam six faces of LED chip, thereby make ceramic substrate get the light rate, improves, and whole light flux significantly improves.Article three, ceramics bracket is evenly distributed on the candle lamp centre, and keeps mutually relying on, and forms cone-shaped, and lighting angle is and is greater than the well-balanced distribution of 300 degree.

Described LED light-emitting section is ceramic material, forms the rectangle sheet, is installed on circuit board, by the conductive layer connected on pin and circuit board, is welded and fixed.

Described circuit board is metal-based circuit board or common epoxy radicals circuit board.

The candle optical lampshade of described printing opacity selects optical resin, the material of a kind of PC of being similar to be different from conventional PC or PMMA, have the high transmission rate more than 94%, high diffusion, free from glare, light gentle each, the characteristics such as non-friable.

Described plastic cement lamp housing is fire resistant PBT, and inner uniform 4 screens and integrated light source electrical equipment module interlock and be integral; And be provided with air channel high temperature resistant anti-touching on lamp plastic cement lamp housing lamp holder position, the heat that the inner electrical equipment of lamp housing is produced effectively outwards distributes radiation, reduces the electrical equipment temperature, extends appliance life.

LED chip 3 is fixed on ceramics bracket 2, three length of a film square ceramic substrate light-emitting sections are bonding small-sized FR4 plate in lower end, is fastened on driver circuit board pyramid triangular in shape or vertical-shaped around arrangement mode by the plug-in unit mode, its conductive electrode and circuit board scolding tin mode, fixed.

Described ceramic substrate light-emitting section evenly is arranged on pcb board, passage is arranged on PCB, make a large amount of thermal currents in optical lampshade flow out in the convection holes at lamp holder plastic shell top by pore, efficiently radiates heat, luminous component of the present invention is comprised of the polylith ceramic substrate, lighting angle is greater than 300, makes the light-emitting line homogeneous and bright.

Described ceramic substrate has semi-transparency, and scribbles fluorescent material at the ceramic substrate back side, LED chip on ceramic substrate six all emit beam, promote the light rate of getting of ceramic substrate light source, LED light fixture luminous flux is improved greatly.After LED chip 3 is attached on ceramic substrate, bonding force is strong, and has insulating properties, and flatness is high, effectively promotes packaging efficiency, and pottery itself has heat dispersion, and the LED chip heating is little, effectively reduces the LED chip junction temperature.

Described candle optical lampshade has the high transmission rate more than 94%, high diffusion, free from glare, without the advantage such as shadow, light be soft, more can transfer light source to sphere when LED is luminous luminous, lighting angle is greater than 300 in vertical direction.

It is the shell electrocution-proof protection that the utility model adopts resistant to elevated temperatures plastic shell, and fire-protection rating is at UL94V-O, and the PBT antiultraviolet, uses for a long time not flavescence, forever keeps ball bubble outward appearance primary colors.Cover top portion, by the design airflow hole, allows ceramic substrate light source and surrounding air carry out good " breathings ", exchanges cold and hot air outside radiations heat energy, make the candle lampshade interior temperature remain on below 45 ° of C (25 ° of C of environment temperature); Another advantage of plastic cement lamp housing is still can touch with hand after lighting for a long time use, hot and untouchable unlike metal shell.

The utility model has very strong applicability, can directly replace traditional incandescent lamp and electricity-saving lamp for room lighting, and profile is more elegant in appearance.Lamp holder has the polytypes such as E14, E12, E17, E26, B22; Bulb-shaped size has A37, A45, A60, A70 etc.; Power bracket: 2W to 8W; Colour temperature covers whole reference color temperature; Colour rendering index all is greater than 80.

The example that the claimed scope of the utility model is not limited to introduce herein, all various forms of conversion of doing based on the described scope of the present embodiment and description and replacement, all belong to the scope that the utility model is contained.

Claims

1. a LED bulb, it comprises: the glass lamp shade of a printing opacity, plastic cement with ventilation slot lamp housing and lamp holder, one group of ceramics bracket that is packaged with LED chip, driver and circuit board, it is characterized in that described ceramics bracket is the rectangle sheet, be installed on circuit board and be evenly distributed on the centre of glass lamp shade, the LED chip that sticks with glue knot on ceramics bracket is welded and fixed by the connection pin on ceramics bracket and the conductive layer on circuit board.

2. LED bulb according to claim 1, it is characterized in that described one group of ceramics bracket consists of three semitransparent ceramics substrates, their pyramids triangular in shape or vertical-shapedly evenly be fixedly mounted on circuit board around arrangement mode, scribble fluorescent material on LED chip on ceramics bracket, and also scribble the thin fluorescent material of one deck at the substrate back of described ceramics bracket.

3. LED bulb according to claim 1 and 2, is characterized in that described circuit board is metal-based circuit board or epoxy radicals circuit board, is provided with the passage that can be dispelled the heat to hot gas in glass lamp shade on circuit board.

4. LED bulb according to claim 3, is characterized in that described three ceramic substrates are connected together with mutually relying on, forms cone-shaped, and lighting angle is and is greater than the well-balanced distribution of 300 degree.