CN207097868U

CN207097868U - A kind of intensive exchange driving LED filament

Info

Publication number: CN207097868U
Application number: CN201720859059.5U
Authority: CN
Inventors: 黄琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-16
Filing date: 2017-07-16
Publication date: 2018-03-13
Anticipated expiration: 2027-07-16

Abstract

The utility model provides a kind of LED filament of intensive exchange driving, belongs to field of LED illumination.Wherein, a kind of LED filament of intensive exchange driving includes LED flip chips, metal terminal, fluorescent colloid, ceramic substrate, current-limiting resistor voltage divider.Current limiting divider resistance and the two rows intensive and electrode of arrangement are set on the inside of a kind of metal terminal of the LED filament of described intensity exchange driving towards opposite LED flip chips, two row LED flip chip groups are flowed to after the partial pressure current limliting that 220V electric mains pass through resistance, when alternating current is in positive half period, a line LED flip chips will be lit, and when alternating current is in negative half-cycle, another row LED flip chips will be lit.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 cost of product, lifts the competitive advantage of product.

Description

A kind of intensive exchange driving LED filament

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

Progressively withdrawn from the market with the incandescent lamp of highly energy-consuming, the illuminating product that LED type illuminating product turns into optimal is just rapid Capture illumination market.Filament LED has higher light efficiency than conventional patch type LED and benefited from deeply Like at family.Filament LED bulb by LED filament, glass bulb, lamp holder, conversion driving power form, with such light fixture into Ripe and popularization, the Cost Competition of 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 scheme, design it is a kind of can direct electricity driving LED filament, save LED The driving power of filament so as to reduce the Material Cost of product and production human cost.

The content of the invention

The purpose of this utility model is to create one kind without conversion electric power, can lead to directly by the LED filament of electricity driving The realization of such a technology is crossed, the overall Material Cost and production human cost of light fixture can be effectively reduced so that using such The light fixture of LED filament manufacture is by with stronger competitive advantage.

Embodiment of the present utility model is that following manner is realized：

The utility model embodiment is to provide a kind of LED filament of intensive exchange driving, and described one kind is intensive to be handed over The LED filament of stream driving includes LED flip chips, ceramic substrate, gold thread, fluorescent colloid, metallic conduction terminal, 0603 type electricity Resistance, electrolysis copper conductive traces.Described fluorescent colloid is reconciled by mixing red fluorescence powder and the silica gel of yellowish green fluorescent powder and formed. Described metallic conduction terminal is arranged on the both ends of ceramic substrate.0603 described type resistance pad, is produced on using cathode copper The inner side of two metallic conduction terminals, and using 0603 type resistance of the tin cream welding manner welding with specific resistance.Described LED flip chips, which are divided into two lines, to be fixed on the electrolysis copper conductive traces pre-set, wherein go in LED flip chips electricity Pole is towards fixed direction, and in the ranks the electrode direction of LED flip chips is opposite.The two outermost LEDs of row LED flip chips The pad of one electrode of flip chip is connected with a pad of 0603 type resistance.0603 pad of type resistance one and LED upside-down mountings Chipset is connected, another pad access metal terminal.

The beneficial effect of the utility model embodiment is：

The utility model embodiment provides a kind of intensive AC driving type LED filament, by the both ends of ceramic substrate Metallic conduction terminal is set to facilitate spot welding in bulb production process, two are wherein provided with the inside of the metal terminal of side has one Determine 0603 type resistance of resistance, this resistance one end is connected with metal terminal, and other end passes through the weldering with two row LED flip chips Disk is connected, and this resistance will be LED flipped light emitting chip partial pressure current limlitings after civil power is connected.It is intensive on ceramic substrate to be provided with The opposite LED flip chip arrays of 2 row electrode directions, often row LED connected by the way of connecting entirely, every row LED wafer outermost One pad of the electrode of the LEDs flip chip of side one is connected with the pad of 0603 type resistance.Completing can shape after above-mentioned connection Into complete circuit.After metal terminal connects electric main, by supplying 2 row LED wafers after 0603 type electric resistance partial pressure current limliting, Due to LED wafer unilateral conduction, therefore when alternating current is in positive half period, wherein a line LED wafer will be lit, and in addition one Capable then do not work, when alternating current is in negative half-cycle, the chip that alternating current positive half period does not work will be lit, the positive half cycle of alternating current Phase bright chip will not work.

A kind of LED filament of intensive exchange driving provided by the utility model is by the above-mentioned means, utilize electric resistance partial pressure After current limliting, two row LED flip chips will be lighted alternately within positive and negative two cycles of alternating current respectively, by traditional LED lamp silk lamp The driving power that special alternating current need to be set to be converted to direct current is steeped to saving, so as to reduce the overall Material Cost of product With production human cost.This technology is succeeded in developing so that a kind of intensive exchange driving LED filament possesses stronger market Competitiveness.

Brief description of the drawings

, below will be in embodiment in order to illustrate more clearly of the technical scheme and manufacture method of the utility model embodiment The required accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, Therefore the restriction to scope is not construed as, for those of ordinary skill in the art, is not paying creative work Under the premise of, other related accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of support line construction of the LED filament for intensive exchange driving that the utility model embodiment provides Schematic diagram.

Fig. 2 is a kind of electrical schematic diagram of the LED filament for intensive exchange driving that the utility model embodiment provides.

Icon：101- metal terminals；102-LED flip chip pads；103-0603 type resistance pads；104- ceramic bases Plate.

Embodiment

To make the technical scheme of the utility model embodiment clearer, ceramic mould support knot that will be grown below based on 38mm The accompanying drawing in the utility model embodiment is closed, the technical scheme in the embodiment of the utility model is clearly and completely described, Obviously, described embodiment is the utility model part of the embodiment, rather than whole embodiments.

Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

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

Fig. 1 is refer to, Fig. 1 is a kind of branch of the LED filament for intensive exchange driving that the utility model embodiment provides Stringing line structure schematic diagram.Described support includes metallic conduction terminal 101, the type resistance pad of ceramic substrate 104,0603 103, LED flip chip pads 102.Described metal terminal 101 is made up of iron material nickel plating；0603 described type resistance pad 103 are set using cathode coppers, and size is width 0.6mm, length 0.3mm, and one of pad is connected with metal terminal, another Pad is connected with two 102 groups of row LED flip chips pads simultaneously, the pad pitch metal terminal 0.3mm- of 0603 type resistance 0.5mm is to prevent short circuit.Described LED flip chip pads make also by cathode copper, and its width is 0.2mm, thickness is 0.05mm, cascade structure is presented in two row LED flip chips pads 102, and an electrode of 0603 type pad is accessed at both ends simultaneously.

Fig. 1 is continued referring to, sets the tin cream after one layer of 0.1mm is coated on the pad of line construction in upper speed, then Respectively the 0603 type resistance and LED flip chips by accurately calculating are fixed in the pad（The resistance of the present embodiment selection For 960 Ω）.In fixed LED flip chips, the positive electrode of upper row LED flip chips is fixed towards the right, by lower row's The positive electrode fixation of LED flip chips is towards the left side., will after the 0603 type resistance for fixing the resistance of LED flip chips and choosing Whole support, which is put into heating in the Reflow Soldering that maximum temperature is 240 DEG C, melts tin cream, and LED flip chips and 0603 resistance are led to Tin cream is crossed completely to be combined together with line layer.

After completing above step, then in the upper and lower surface of ceramic substrate one layer is coated with by mixing red fluorescence powder and yellowish green The silica gel of color fluorescent material reconciles and is wrapped in LED wafer, ceramic substrate 106,0603 type resistance in fluorescent glue entirely into fluorescent glue, Then the oven for baking at 150 DEG C is formed by curing final product in 4 hours.

Fig. 2 is refer to, Fig. 2 is a kind of electric original of the LED filament of intensive exchange driving provided by the utility model Reason figure.We can clearly draw design principle of the present utility model from figure：220V civil powers are by being arranged on LED groups both ends Resistance R partial pressure current limlitings after, lead to LED flip chips, can be lighted when electric main is in positive half period a line LED upside-down mountings crystalline substance Piece, other a line LED flip chips can be lighted when electric main is in negative half-cycle.

The present embodiment is to be driven by realizing the direct exchange of filament with upper type, turns direct current so as to eliminate alternating current The conversion electric power of electricity.

Claims

A kind of a kind of 1. LED filament of intensive exchange driving, it is characterised in that the LED of described intensive exchange driving Silk is made up of metal terminal, LED flip chips, fluorescent colloid, 0603 type resistance, ceramic substrate, conducting wire.
2. the LED filament of intensive exchange driving according to claim 1,0603 described type resistance are arranged on ceramics Substrate both ends, most it is wrapped at last in fluorescence micelle colloid.
3. the LED filament of intensive exchange driving according to claim 1, described LED flip chips are in ceramic substrate Two rows of upper presentation are densely arranged, and electrode is towards conversely.