CN203384679U

CN203384679U - LED (light-emitting diode) bulb lamp capable of emitting light in all directions

Info

Publication number: CN203384679U
Application number: CN201320352771.8U
Authority: CN
Inventors: 何文铭; 唐春生; 唐秋熙; 童庆峰; 申小飞
Original assignee: FUJIAN WANBAN OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: FUJIAN WANBAN OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-06-19
Filing date: 2013-06-19
Publication date: 2014-01-08
Anticipated expiration: 2023-06-19

Abstract

An LED bulb lamp capable of emitting light in all directions belongs to the field of semiconductor lighting and comprises a light emitting portion and an electrical connection portion, the electrical connection portion and the light emitting portion are connected through an insulating connecting piece, the light emitting portion is composed of a transparent upper cover, a transparent bulb shell and an LED light source, the LED light source is arranged between the transparent upper cover and the transparent shell and is formed by bonding an LED chip onto a transparent substrate through transparent die bond glue, the blue light emitted by the LED chip excites fluorescent powder glue coated on the surface of the LED chip surface or fluorescent ions doped in the transparent upper cover, the transparent bulb shell or the transparent substrate to produce yellow light and red light to be mixed into white light with the blue light. Through the application of the LED bulb lamp capable of emitting light in all directions, the light emitting range is close to 360 degrees, high luminous efficacy can be obtained, shortcomings of poor electrical connection, poor heat-conducting property and small light emitting angle of traditional large-angle light emitting bulb lamps can be effectively overcome, and the LED bulb lamp capable of emitting light in all directions is applicable to large-scale popularization.

Description

A kind of LED bulb lamp of omnirange bright dipping

Technical field

The utility model relates to field of semiconductor illumination, particularly a kind of LED bulb lamp of omnirange bright dipping.

Background technology

The large multiplex blue-light LED chip of the white light LEDs of prior art and fluorescent material form, and its principle is that the blue-light excited fluorescent material that LED chip sends produces gold-tinted, after blue light and yellow light mix, produces white light.Its encapsulation normally is fixed on LED chip on substrate with crystal-bonding adhesive, then cover phosphor powder layer on LED chip, yet, the LED light source of encapsulation is because the substrate used is transparent materials in this way, its lighting angle maximum only has 180 °, this packaged type has following several shortcoming: 1. because LED chip is 360 ° of illuminators originally, adopt opaque substrate to be connected for optically focused or with metal heat sink, usually in the bottom surface of LED chip, reflecting layer is arranged, so the illuminator that script is 360 ° is made into the illuminator of 180 °, this just makes the light of 180 ° of directive radiator one side will pass through the outgoing of reflection ability, therefore the reflectivity of substrate surface is very large on the impact of light efficiency, usually on substrate, make the argentum reflecting layer of high reflectance, somewhat expensive and making are complicated, cause bulb lamp with high costs, yield rate is lower.2 substrates cause obstruction to the heat radiation of LED chip, make the radiating effect of integrated light source bad, while utilizing this light source to make light fixture, generally all will consider supporting radiator, have both limited the structural design of light fixture, improve again the manufacturing cost of light fixture.3, for better heat radiation, substrate material generally adopts metal substrate, and the dielectric voltage withstand characteristic of metal substrate is poor, therefore needs to adopt the good die bond primer of insulating properties, but the transmitance of the die bond primer of good insulation preformance is lower, therefore further affected the light efficiency of whole system.

To this, a lot of producers consider to adopt transparency carrier to encapsulate bulb lamp, Chinese patent 200510089384.X for example, and it is placed in transmission substance to single led chip hanging shape, makes 360 ° of chips luminous; But it does not solve the heat dissipation problem of chip, chip does not have the electric lead-out wire reliability on the unsettled placement of gripper shoe, chip very poor.Also just like patent 201120319651.9,201220184752.4,201010278760.0 and 201010610092.7 etc., the LED light source of this class lamp is made with the LED light-emitting section of discrete transparency carrier encapsulation, the LED light-emitting section vertically is fixed in bulb by connector, this bulb is connected because substrate and power shelf adopt stem stem, therefore by stem stem, blocked can't transmission for some light, and the solder joint of this bulb assembling electric welding is many, and light-emitting section only connects by connector, the less heat dispersion that affects system of the contact area of connector.In sum, the LED lamp ubiquity light efficiency of the wide-angle bright dipping of prior art is not high, and reliability of electrical connection is poor, the assembling flow path complexity, and the bad shortcomings that waits dispels the heat.

Summary of the invention

The problem existed in order to solve traditional wide-angle light extracting LED bulb lamp, the utility model is to adopt following technological means to realize: a kind of LED bulb lamp of omnirange bright dipping, comprise luminous component and electrical connections, described electrical connections is by a control circuit, an electric connector, an insulated connecting piece forms, described control circuit is arranged in electric connector, by insulated connecting piece, with luminous component, be connected, it is characterized in that: described luminous component is by a transparent upper cover, transparent bulb case and LED light source form, LED light source is arranged between transparent upper cover and transparent outer cover, transparent upper cover adopts gluing or is threaded with transparent outer cover, described LED light source comprises a transparency carrier, a plurality of LED chips of at least a string equidirectional series connection are installed on transparency carrier, the rising angle of described LED chip is 360 °, LED chip is fixed on transparency carrier with the die bond insulating cement, described LED chip surface and the transparency carrier back side cover the fluorescent material glue-line, the part blue light that described fluorescent material is sent out LED chip is transformed into gold-tinted, gold-tinted obtains white light with the residue blue light, described transparency carrier, transparent upper cover, can mix the fluorescence ion in transparent bulb case, the part blue light that described fluorescence ion is sent out LED chip is transformed into ruddiness, thereby obtain the white light of high color rendering index (CRI), the central evapn of described transparency carrier is coated with transparency electrode, described LED chip is realized being electrically connected to electrode by gold thread or aluminum steel, transparency electrode is used wire to be connected with the control power supply, described transparent electrode material can be ITO, Graphene or ZnO, described transparency carrier, the material of transparent upper cover and transparent bulb case can be the crystalline ceramics with high heat conductance, devitrified glass or monocrystalline, one end of the nearly electric connector of described transparent bulb case is provided with a light reflecting board, described transparent upper cover can be A-type, G-type, R-type, PAR-type, any in the cell-shell of T-type, candle type or existing bulb.

The LED bulb lamp of omnirange bright dipping of the present utility model, LED chip sends blue-light excited fluorescent material glue-line and produces gold-tinted, blue light and yellow light mix obtain white light, also can mix the fluorescence ion in transparency carrier, transparent upper cover and transparent bulb case and obtain higher colour rendering index, white light substantially can not be blocked in the process of outgoing, go out optical range and approach 360 °, and the heat that chip produces is by high heat conductive transparent substrate, transparent upper cover and transparent bulb case can distribute very soon.

The accompanying drawing explanation

The structural representation of the LED bulb lamp that Fig. 1 is a kind of omnirange bright dipping of the present utility model.

Wherein 101 is transparent upper cover, and 102 is LED light source, and 103 is transparent bulb case, and 104 is reflecting layer, and 105 for controlling power supply, and 106 is wire, and 107 is insulated connecting piece, and 108 is electric connector, and 109 is phosphor gel.

The LED light source structural representation of the LED bulb lamp that Fig. 2 is a kind of omnirange bright dipping of the present utility model.

Wherein 201 is transparency electrode, and 202 is LED chip, and 203 is gold thread, and 204 is transparency carrier, and 205 is the fluorescent material glue-line.

The specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.

Embodiment mono-: the structural representation of an embodiment of the LED bulb lamp that Fig. 1 is a kind of omnirange bright dipping of the present utility model, to control power supply 105 is arranged among electric connector 108, adopt electric connector 108 and transparent bulb case 103 insulated connecting piece 107 to be combined, the LED light source 102 of 360 ° of packaged bright dippings is arranged among transparent bulb case 103 afterwards, cover transparent upper cover 101 and use glue sealing, described LED light source 102 as shown in Figure 2, LED chip 202 is bonded on transparency carrier 204 and forms, adopt high heat conduction crystal-bonding adhesive bonding between LED chip 202 and transparency carrier 204, and be coated with ITO in the evaporation of the center of transparency carrier and form transparency electrode 201, described transparent electrode material is ITO, adopt gold thread 203 welding between transparency electrode 201 and LED chip 202, after having welded, the phosphor gel 109 prepared is coated at chip surface and the transparency carrier back side again, controlling employing wire 106 between power supply 105 and transparency electrode 201 is connected, wherein transparent upper cover 101 and transparent bulb case 103 are devitrified glass, what transparency carrier 204 adopted is the monocrystal material of mixing cerium ion, encapsulated the whole light effect of rear test bulb lamp 150lm/W, colour rendering index is 80.

Embodiment bis-: the structural representation of another embodiment of the LED bulb lamp that Fig. 1 is a kind of omnirange bright dipping of the present utility model, to control power supply 105 is arranged among electric connector 108, adopt electric connector 108 and transparent bulb case 103 insulated connecting piece 107 to be combined, the LED light source 102 of 360 ° of packaged bright dippings is arranged among transparent bulb case 103 afterwards, cover transparent upper cover 101 and use glue sealing, described LED light source 102 as shown in Figure 2, LED chip 202 is bonded on transparency carrier 204 and forms, adopt high heat conduction crystal-bonding adhesive bonding between LED chip 202 and transparency carrier 204, and be coated with ZnO in the evaporation of the center of transparency carrier and form transparency electrode 201, adopt gold thread 203 welding between transparency electrode 201 and LED chip 202, controlling employing wire 106 between power supply 105 and transparency electrode 201 is connected, wherein transparent upper cover 101, transparent bulb case 103 and transparency carrier 204 all adopt two crystalline ceramics of mixing Ce3+ ion and Eu2+ ion, encapsulated the whole light effect of rear test bulb lamp 120lm/W, colour rendering index is 90.

Claims

1. the LED bulb lamp of an omnirange bright dipping, comprise luminous component and electrical connections, described electrical connections is by a control circuit, an electric connector, an insulated connecting piece forms, described control circuit is arranged in electric connector, by insulated connecting piece, with luminous component, be connected, it is characterized in that: described luminous component is by a transparent upper cover, transparent bulb case and LED light source form, LED light source is arranged between transparent upper cover and transparent outer cover, and transparent upper cover adopts gluing or is threaded with transparent outer cover.

2. the LED bulb lamp of a kind of omnirange bright dipping according to claim 1, it is characterized in that: described LED light source comprises a transparency carrier, a plurality of LED chips of at least a string equidirectional series connection are installed on transparency carrier, the rising angle of described LED chip is 360 °, and LED chip is fixed on transparency carrier with the die bond insulating cement.

3. the LED bulb lamp of a kind of omnirange bright dipping according to claim 1, it is characterized in that: described LED chip surface and the transparency carrier back side cover the fluorescent material glue-line, the part blue light that described fluorescent material is sent out LED chip is transformed into gold-tinted, and gold-tinted obtains white light with the residue blue light.

4. the LED bulb lamp of a kind of omnirange bright dipping according to claim 1, it is characterized in that: in described transparency carrier, transparent upper cover, transparent bulb case, can mix the fluorescence ion, the part blue light that described fluorescence ion is sent out LED chip is transformed into ruddiness, thereby obtains the white light of high color rendering index (CRI).

5. the LED bulb lamp of a kind of omnirange bright dipping according to claim 1, it is characterized in that: the central evapn of described transparency carrier is coated with transparency electrode, described LED chip is realized being electrically connected to electrode by gold thread or aluminum steel, and transparency electrode is used wire to be connected with the control power supply.

6. the LED bulb lamp of a kind of omnirange bright dipping according to claim 1, it is characterized in that: an end of the nearly electric connector of described transparent bulb case is provided with a light reflecting board; Described transparent upper cover can be A-type, G-type, R-type, PAR-type, any in the cell-shell of T-type, candle type or existing bulb.