CN203641936U

CN203641936U - LED bulb

Info

Publication number: CN203641936U
Application number: CN201320783575.6U
Authority: CN
Inventors: 张臻; 郭炎炎
Original assignee: ZHEJIANG SHENDU LIGHTING CO Ltd
Current assignee: ZHEJIANG SHENDU LIGHTING CO Ltd
Priority date: 2013-12-03
Filing date: 2013-12-03
Publication date: 2014-06-11
Anticipated expiration: 2023-12-03

Abstract

The utility model discloses an LED bulb and belongs to the technical field of LED light sources. The LED bulb comprises a glass dome, a lamp holder and a filament. The glass dome is connected with the lamp holder. The filament comprises a glass core post. One end of the glass core post is provided with a bell mouth; the other end of the glass core post is a polyhedron; an LED light source is fixed to each face of the polyhedron; the bell mouth of the glass core post is connected with the open end of the glass dome by thermal fusion to form a closed cavity filled with inert gas; the LED light sources are packaged in the cavity. An anode and a cathode in every LED light source are electrically connected with leads respectively, led out of the glass core post; the other end of every lead is electrically connected to a drive power source; the drive power source is disposed in the lamp holder; space between the lamp holder and the drive power source is filled with insulating cement.

Description

A kind of LED bulb lamp

Technical field

The utility model relates to LED light source technical field, particularly a kind of LED bulb lamp.

Background technology

Conventional incandescent light efficiency is low, it is high to consume energy, the life-span is short; under under the overall situation of global resources anxiety; gradually, forbidden producing by national governments; substitute products are electronic energy-saving lamps thereupon; although electronic energy-saving lamp has improved energy-saving effect; but owing to having used the heavy metal element of many contaminated environment, run counter to again the main trend of environmental protection.Meanwhile, the development of semiconductor light sources light emitting diode (LED) is but very rapid, substitutes traditional lighting product gradually and becomes the only choosing of novel green illumination.Be different from traditional illuminating product, LED lamp body long-pending little, power consumption is low, light efficiency is high, long service life, and has many-sided advantages such as energy-saving and environmental protection are pollution-free, is widely used in the fields such as decoration, indication, backlight, general lighting and city lighting.

The basic structure of common LED bulb lamp is on the market at present: comprise glass ball cover, LED chip, radiating piece, wiring board, driving power and lamp holder, radiating piece two ends connect respectively glass ball cover and lamp holder, LED chip is directly welded in PCB surface, wiring board and driving power are electrically connected, wiring board is flat on radiating piece, and driving power is built in lamp holder.Visible LED bulb lamp, structurally than incandescent lamp bulb complexity, causes assembling procedure loaded down with trivial details, and production cost is high, and therefore product price is higher than incandescent lamp bulb.And the manufacturing technology of incandescent lamp bulb is very ripe, the technology and equipment of existing a large amount of automated productions, low production cost, and the need of production of LED bulb lamp is developed a large amount of production technologies and equipment again, enterprise's input cost is large, and this more makes the marketing of LED bulb lamp be hindered.And LED has stronger directive property, in existing LED ball bulb lamp structure, LED lamp pearl is again planar alignment, can only be luminous to a direction, and lighting angle is very little, and in the time that lighting environment needs comprehensive illuminating, this LED ball bubble just can not get application.

Utility model content

Technical problem to be solved in the utility model is to overcome the problems referred to above, and provide a kind of simple in structure, production cost is low, production efficiency is high and can wide-angle luminous LED bulb lamp.

The technical solution of the utility model is:

A kind of LED bulb lamp, comprises glass ball cover, lamp holder and wick, and glass ball cover is connected with lamp holder, it is characterized in that: described wick comprises glass stem and LED light source, one end of described glass stem has horn mouth, and the other end is polyhedral, and this polyhedral each face is all fixed with LED light source; The openend of the horn mouth of described glass stem and glass ball cover, by heat welded, forms the container cavity of sealing, in described container cavity, is filled with inert gas, and described LED light source is encapsulated in this container cavity; The both positive and negative polarity of described LED light source respectively with glass stem in the wire of drawing be electrically connected, the other end of described wire is electrically connected on driving power, described driving power is arranged in lamp holder, is filled with insulation clay between lamp holder and driving power.

Further, LED light source described in the utility model comprises FPC and is fixed on several LED chips in described FPC front, between described several LED chips, be electrically connected by wire, the outer entirety of these several LED chips is enclosed with packaging silicon rubber, and the back side of FPC is the surface at glass stem by heat-conducting glue hydropexis.

Further, polyhedron described in the utility model is prism, pyramid, the frustum of a pyramid or the spherical surface body based on grid.

The beneficial effects of the utility model are:

1, be on each face of glass stem of polyhedral and be all fixed with LED light source, can be forwards and all angles such as side luminous, increased the lighting angle of whole lamp;

2, the more existing LED bulb lamp of structure is simpler, and glass stem and glass ball cover heat welded process, the filling of inert gas and the assembling of lamp holder, can utilize envelope row's machine and clay machine on incandescent lamp bulb or energy-saving lamp production line to complete, can realize full-automation, the production cost that greatly reduces LED bulb lamp, has improved production efficiency.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the structural representation of wick in the utility model embodiment;

Fig. 3 is the structural representation of LED light source in the utility model embodiment.

The specific embodiment

Now in conjunction with the accompanying drawings and embodiments the utility model is further described:

As depicted in figs. 1 and 2, the LED bulb lamp of the present embodiment, comprises glass ball cover 10, lamp holder 20 and wick 30, and glass ball cover 10 is connected with lamp holder 20, and lamp holder 20 can be threaded connection or the form such as buckle connection and external power source electrical connection.Wick 30 comprises glass stem 31 and LED light source 32, one end of glass stem 31 has horn mouth 311, the other end is polyhedral, this polyhedron is prism, pyramid, the frustum of a pyramid or the spherical surface body based on grid, its each face is all fixed with LED light source 32, can be forwards and all angles such as side luminous, increased the lighting angle of whole lamp.The horn mouth 311 of glass stem 31 passes through heat welded with the openend of glass ball cover 10; form the container cavity of sealing; LED light source 32 is encapsulated in this container cavity; in container cavity, be filled with inert gas as protective gas and heat-conducting medium; in the service life that promotes LED light source, this inert gas is made up of 70% nitrogen, 30% argon gas.The both positive and negative polarity of LED light source 32 respectively with glass stem 31 in the wire 40 of drawing be electrically connected, the other end of wire 40 is electrically connected on driving power (not shown in FIG.), driving power is arranged in lamp holder 20, between lamp holder 20 and driving power, be filled with insulation clay 21, can water proof and dust proof and make driving power and exterior insulation, lamp holder 20 also scribbles bonding glue with the joint of glass ball cover 10 and is fixed.

As shown in Figure 3, above-mentioned LED light source 32 comprises FPC 321 and is fixed on several LED chips (not shown in FIG.) in FPC 321 fronts, FPC 321 can facilitate the circuit design of different capacity in manufacturing process, meet any different power demand, the back side of FPC 321 is directly adhesively fixed on the surface of glass stem 31 by heat conduction glue 322.Between several LED chips, be electrically connected by wire, its outer entirety is enclosed with packaging silicon rubber 323.

The preparation method of the LED bulb lamp of the present embodiment:

1, prepare LED light source 32.Specifically, at the silver-plated and solid good LED chip in the positive function district of FPC 321, welding lead conducting between LED chip, then outside LED chip, overall wrapping and encapsulating silica gel 323 encapsulates, when encapsulation by outside exposed the both positive and negative polarity of FPC 321.

2, prepare wick 30.Specifically, prepare one end and there is horn mouth 311, the other end is the glass stem 31 of polyhedral, the backside coating heat conduction glue 322 of the FPC 321 of the LED light source 32 obtaining in step 1, or at each the coated with thermally conductive glue 322 of polyhedron one end of glass stem 31, LED light source 32 is bonded on glass stem 31 to polyhedral each, the both positive and negative polarity surface turmeric of LED light source 32, then with mash welder, the wire 40 of drawing in glass stem 31 is welded on the both positive and negative polarity at LED light source 32 two ends, realize the conducting of LED light source 32, in glass stem 31, the other end of wire 40 is exposed outside horn mouth 311.

3, engaging of wick 30 and glass ball cover 10.Specifically, the wick 30 that step 2 is obtained inserts in glass ball cover 10, be stained with one end of LED light source 32 inwardly, there is one end of horn mouth 311 outwardly, toward the nitrogen of the interior injection 70% of

glass ball cover

10,30% argon gas composition inert gas, then by together with the openend heat welded of horn mouth 311 and glass ball cover 10, form the container cavity of sealing, 32 of LED light sources are positioned at this container cavity.The heat welded of this step and the padding of inert gas can utilize the envelope row's machine on incandescent lamp bulb or energy-saving lamp production line to complete, and are filled with inert gas when glass ball cover 10 and glass stem 31 are sealed.

4, the connection of driving power.Specifically, exposed wire 40 in glass stem 31 is welded on driving power.

5, the assembling of lamp holder 20.Specifically, driving power is put into lamp holder 20 and injected insulation clay 21, lamp holder 20 is surrounded to the bottom of glass ball cover 10, then smear bonding glue at the joint of glass ball cover 10 and lamp holder 20.Clay operation in this step can utilize the clay machine on incandescent lamp bulb or energy-saving lamp production line to complete.

From above-mentioned preparation method, the LED ball bulb lamp structure of the present embodiment is simple, heat welded process, the filling of inert gas and the assembling of lamp holder 20 of glass stem 31 and glass ball cover 10, can utilize envelope row's machine and clay machine on incandescent lamp bulb or energy-saving lamp production line to complete, can realize full-automation, the production cost that greatly reduces LED bulb lamp, has improved production efficiency.

Claims

1. a LED bulb lamp, comprise glass ball cover, lamp holder and wick, glass ball cover is connected with lamp holder, it is characterized in that: described wick comprises glass stem and LED light source, one end of described glass stem has horn mouth, the other end is polyhedral, and this polyhedral each face is all fixed with LED light source; The openend of the horn mouth of described glass stem and glass ball cover, by heat welded, forms the container cavity of sealing, in described container cavity, is filled with inert gas, and described LED light source is encapsulated in this container cavity; The both positive and negative polarity of described LED light source respectively with glass stem in the wire of drawing be electrically connected, the other end of described wire is electrically connected on driving power, described driving power is arranged in lamp holder, is filled with insulation clay between lamp holder and driving power.

2. according to a kind of LED bulb lamp claimed in claim 1, it is characterized in that: described LED light source comprises FPC and is fixed on several LED chips in described FPC front, between described several LED chips, be electrically connected by wire, the outer entirety of these several LED chips is enclosed with packaging silicon rubber, and the back side of FPC is the surface at glass stem by heat-conducting glue hydropexis.

3. according to a kind of LED bulb lamp claimed in claim 1, it is characterized in that: described polyhedron is prism, pyramid, the frustum of a pyramid or the spherical surface body based on grid.