CN207584417U

CN207584417U - A kind of driving LED filament of alternating-current bidirectional

Info

Publication number: CN207584417U
Application number: CN201720859060.8U
Authority: CN
Inventors: 黄琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-16
Filing date: 2017-07-16
Publication date: 2018-07-06
Anticipated expiration: 2027-07-16

Abstract

The utility model provides a kind of driving LED filament of alternating-current bidirectional, belongs to field of LED illumination.Wherein, the driving LED filament of a kind of alternating-current bidirectional includes gold thread, forward LED chip, metal terminal, fluorescent colloid, ceramic substrate, current-limiting resistor voltage divider.Current limiting divider resistance and two row electrodes are set on the inside of a kind of metal terminal of the driving LED filament of alternating-current bidirectional towards opposite forward LED chip, two row forward LED chipset are flowed to after the partial pressure current limliting that 220V electric mains pass through resistance, a line forward LED chip will be lit when alternating current is in positive half period, and another group of forward LED chip will be lit when alternating current is in negative half-cycle.The alternating current that common LED filament type bulb can be saved by the realization of above technical scheme turns the driving power of direct current, so as to reduce the use of material variety on the overall structure of product composition, reduce the material cost of product, simultaneously because without installing conversion driving power so as to reduce manufacturing process, production human cost is reduced, further promotes the competitive advantage of product.

Description

A kind of driving LED filament of alternating-current bidirectional

Technical field

The utility model is related to field of LED illumination, in particular to one kind can be used directly 220V electric mains (after Literary abbreviation AC) driving LED filament.

Background technology

It gradually withdraws from the market with the incandescent lamp of highly energy-consuming, the illuminating product that LED type illuminating product becomes best is just rapid Capture illumination market.Filament LED light emitting device has higher light efficiency than conventional patch type LED light emitting device and benefits from deeply Like at family.Filament LED bulb by LED filament, glass bulb, lamp cap, conversion driving power form, with such lamps and lanterns into Ripe and universal, Cost Competition in the market is more and more fierce, how effectively to be dropped on the basis of properties of product and quality is ensured The cost of low product is industry technology personnel's urgent problem.

The utility model by by new technical solution, design it is a kind of can direct electricity driving LED filament, save LED The driving power of filament is so as to reduce the Material Cost of product and production human cost.

Invention content

The purpose of this utility model is that creating a kind of no conversion electric power, can lead to directly by the LED filament of electricity driving The realization of such technology is crossed, the whole Material Cost of lamps and lanterns and production human cost can be effectively reduced so that using such The lamps and lanterns of LED filament manufacture will have stronger competitive advantage.

The embodiment of the utility model is that following manner is realized：

The utility model embodiment is to provide a kind of driving LED filament of alternating-current bidirectional, and a kind of alternating-current bidirectional drives Ejector half LED filament includes forward LED chip, ceramic substrate, gold thread, fluorescent colloid, metallic conduction terminal, 0603 type resistance.Institute The fluorescent colloid stated is reconciled by the silica gel of mixing red fluorescence powder and yellowish green fluorescent powder.The metallic conduction terminal is set It puts at the both ends of ceramic substrate.The 0603 type resistance pad is arranged on ceramic substrate by the way of conductive silver glue printing One end metal terminal inside, and using 0603 type resistance of the tin cream welding manner welding with specific resistance value.It is described just Dress LED wafer, which is divided into two lines, to be fixed on ceramic substrate, wherein the electrode of forward LED chip is gone towards fixed direction in going Between forward LED chip electrode direction it is opposite.The two outermost chip electrodes of row LED wafer are respectively welded at 0603 type resistance Pad is drawn on conductive silver glue circuit and on metal terminal.

The advantageous effect of the utility model embodiment is：

The utility model embodiment provides a kind of driving LED filament of alternating-current bidirectional, is set by the both ends in ceramic substrate It puts metallic conduction terminal and facilitates spot welding in light bulb production process, one is wherein provided on the inside of the metal terminal of side has centainly 0603 type resistance of resistance value, this resistance one end are connected with metal terminal, other end by pad conductive silver glue lead-out wire simultaneously The electrode of two row LED is accessed, this resistance will be that forward LED cell array divides current limliting after alternating current is connected.On ceramic substrate The forward LED cell array and use gold thread for setting 2 row electrode directions opposite are attached, often row LED wafer outermost one The electrode of forward LED chip draws conductive silver glue circuit with the pad of 0603 type resistance by gold thread and metal terminal is connected.It is complete Complete circuit can be formed after into above-mentioned connection.After metal terminal connects electric main, limited by 0603 type electric resistance partial pressure 2 row LED wafers are supplied after stream, due to LED wafer unilateral conduction, therefore when alternating current is in positive half period, wherein a line LED Chip will be lit, and in addition a line does not work then, and when alternating current is in negative half-cycle, the chip that alternating current positive half period does not work will It is lit, the bright chip of alternating current positive half period will not work.

The driving LED filament of a kind of alternating-current bidirectional provided by the utility model using electric resistance partial pressure by the above-mentioned means, limited Two row forward LED cell arrays are alternately lighted within positive and negative two periods of alternating current respectively after stream, by traditional LED lamp silk light bulb Special alternating current need to be set to be converted to the driving power of direct current to saving, so as to reduce the whole Material Cost of product and Produce human cost.This technology succeed in developing will so that a kind of driving LED filament of alternating-current bidirectional to have stronger market competing Strive ability.

Description of the drawings

It, below will be in embodiment in order to illustrate more clearly of the technical solution and manufacturing method of the utility model embodiment Required attached drawing is briefly described, it should be understood that and the following drawings illustrates only some embodiments of the utility model, Therefore the restriction to range is not construed as, for those of ordinary skill in the art, what is do not made the creative labor Under the premise of, it can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is the supporting structure schematic diagram of the driving LED filament of a kind of alternating-current bidirectional that the utility model embodiment provides.

Fig. 2 is that the forward LED chip of the driving LED filament of a kind of alternating-current bidirectional that the utility model embodiment provides is fixed Mode and welding manner schematic diagram.

Fig. 3 is the electrical schematic diagram of the driving LED filament of a kind of alternating-current bidirectional that the utility model embodiment provides.

Icon：101- metal terminals；102- ceramic substrates；103-0603 type resistance pads；104-0603 type resistance pads Circuit；201-0603 type resistance；202- gold threads；203- forward LED chips.

Specific embodiment

Technical solution to make the utility model embodiment is clearer, below by the ceramic mould stent knot based on 38mm long The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described, Obviously, described embodiment is the utility model part of the embodiment, instead of all the embodiments.

Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all Belong to the range of the utility model protection.

It should be noted that：Similar label represents similar terms in following attached drawing, therefore, once a certain Xiang Yi attached drawing In be defined, then do not need to that it is further defined and explained in subsequent attached drawing.

Fig. 1 is please referred to, Fig. 1 is the stent of the driving LED filament of a kind of alternating-current bidirectional that the utility model embodiment provides Structure diagram.The stent includes metallic conduction terminal 101,102,0603 type resistance pad 103,0603 of ceramic substrate Type resistance pad lead line 104.The metal terminal 101 is made of iron material nickel plating；The 0603 type resistance pad 103 It is set by the way of conductive silver glue high temperature sintering, size is width 0.6mm, length 0.3mm, and one of pad passes through conduction Elargol is connected with metal terminal, and the pad pitch metal terminal 0.3mm-0.5mm of 0603 type resistance is to prevent short circuit.Described 0603 type resistance pad lead line 104 is also set by the way of conductive silver glue high temperature sintering, width 0.2mm, thickness For 0.05mm.

Fig. 2 is please referred to, Fig. 2 is the formal dress of the driving LED filament of a kind of alternating-current bidirectional that the utility model embodiment provides LED wafer fixed form and welding manner schematic diagram.It is as shown in Fig. 2, co-melting by tin cream on 0603 type resistance pad 103 Mode fix the 0603 type resistance 201 that a process accurately calculates（The resistance value that the present embodiment is selected is 1920 Ω）.Resistance is consolidated After setting, then in ceramic substrate it is to fix two row forward LED chips 203, every row 28.The electrode of two row forward LED chips 203 Towards anisotropy is presented, i.e., the positive electrode of row's forward LED chip 203 is unified to the right above, below row's forward LED chip 203 positive electrode is unified to the left.Forward LED chip 203 is by being respectively welded at 0603 type resistance of left end after 202 cascade of gold thread On pad lead line 104 and metal terminal 101.

After completing above step, one layer is coated with by mixing red fluorescence powder and yellow green in the upper and lower surface of ceramic substrate The silica gel of fluorescent powder reconciles wraps LED wafer 203, gold thread 202, ceramic substrate 102,0603 type resistance 201 into fluorescent glue entirely It is wrapped in fluorescent glue, then the oven for baking at 150 DEG C is formed by curing final product in 4 hours.

Fig. 3 is please referred to, Fig. 3 is a kind of electrical principle of the driving LED filament of alternating-current bidirectional provided by the utility model Figure.We can clearly obtain the design principle of the utility model from figure：220V alternating currents are by being arranged on LED groups one end After resistance R partial pressure current limlitings, lead to forward LED chip 203, a line forward LED can be lighted when electric main is in positive half period Chip can light other a line forward LED chip when electric main is in negative half-cycle.

Claims

1. a kind of driving LED filament of alternating-current bidirectional, which is characterized in that the driving LED filament of a kind of alternating-current bidirectional by Metal terminal, forward LED chip, gold thread, fluorescent colloid, 0603 type resistance, ceramic substrate composition, the metallic conduction terminal The both ends of ceramic substrate are arranged on, the 0603 type resistance pad is arranged on ceramic substrate by the way of conductive silver glue printing One end metal terminal inside, and using 0603 type resistance of the tin cream welding manner welding with specific resistance value, it is described just Dress LED wafer, which is divided into two lines, to be fixed on ceramic substrate, wherein the electrode of forward LED chip is gone towards fixed direction in going Between forward LED chip electrode direction on the contrary, the two outermost chip electrodes of row LED wafer are respectively welded at 0603 type resistance Pad is drawn on conductive silver glue circuit and on metal terminal, and the fluorescent colloid is by mixing red fluorescence powder and yellow-green fluorescence The silica gel of powder, which reconciles, forms the two sides coated in ceramic substrate.

2. a kind of driving LED filament of alternating-current bidirectional according to claim 1, it is characterized in that a kind of exchange is double Ceramic substrate one end is arranged on to 0603 type resistance of driving LED filament, plays current limliting and partial pressure, 0603 type resistance is final It is completely wrapped in fluorescent colloid.

3. a kind of driving LED filament of alternating-current bidirectional according to claim 1, it is characterized in that a kind of exchange is double The distribution of two rows is presented on ceramic substrate, and electrode is towards on the contrary, at alternating current to the forward LED chip of driving LED filament Electric current driving wherein a line forward LED chip when positive period, the other a line of electric current driving is being just when alternating current be in negative cycle Fill LED wafer.