CN207584391U

CN207584391U - A kind of AC types forward LED filament

Info

Publication number: CN207584391U
Application number: CN201720859054.2U
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 AC types forward LED filament, belongs to field of LED illumination.Wherein, a kind of AC types forward LED filament includes gold thread, forward LED chip, metal terminal, fluorescent colloid, ceramic substrate, printing elargol circuit, current-limiting resistor voltage divider.Setting current limiting divider resistance and rectification LED wafer group on the inside of a kind of metal terminal of AC types forward LED filament, rectification LED wafer group is flowed to after the partial pressure current limliting that 220V electric mains pass through resistance, the light-emitting LED cell array power supply to one-way conduction after over commutation LED wafer group rectification.The alternating current that common LED filament 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 in the overall structure of product, reduces the finished material 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 the utility model product.

Description

A kind of AC types forward LED filament

Technical field

The utility model is related to field of LED illumination, and alternating current can be used directly (hereinafter in particular to one kind AC) the LED filament of driving.

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 lamp is made of LED filament luminescent device, conversion driving power, Lamp bulb case, such LED illumination product It is widely used for decorative lighting and key lighting field.With the maturation of such lamps and lanterns and universal, Cost Competition in the market is got over It is fiercer to come, and it is vast working technology that the cost of product how is effectively reduced on the basis of properties of product and quality is ensured Personnel continue to solve the problems, such as.

The utility model removes the external conversion driving power of LED filament so as to reduce production by by new technical solution The Material Cost of product and production human cost.

Invention content

The purpose of this utility model is that creating a kind of LED filament without the driving of external conversion electric power, such LED filament can To be directly driven using 220V electric mains.By the realization of such technology, can effectively reduce the whole materials of lamps and lanterns into This and production human cost so that using such LED filament manufacture lamps and lanterns 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 AC types forward LED filament, a kind of AC types forward LED filament packet Include forward LED chip, ceramic substrate, gold thread, fluorescent colloid, metallic conduction terminal, printing elargol circuit, 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 printing elargol circuit is arranged on the both sides of ceramic substrate long side, and in ceramic substrate Both ends are maintained a certain distance with metal terminal, and printing elargol circuit has conducting function.The 0603 type resistance pad, is adopted It is arranged on the mode that elargol prints on the inside of the metal terminal at ceramic substrate both ends, and there is spy using the welding of tin cream welding manner Determine 0603 type resistance of resistance value.The forward LED chip prints the part between elargol circuit in ceramic substrate and is uniformly arranged, Set up separately at the both ends of printing elargol circuit and put 4 groups of forward LED chips, 2 LED are included in every group.The forward LED chip And printing elargol circuit is connected using gold thread.

The advantageous effect of the utility model embodiment is：

The utility model embodiment provides a kind of AC types forward LED filament, by setting metal at the both ends of ceramic substrate Conducting terminal facilitates spot-welding technology in light bulb production process, and the 0603 type electricity with certain resistance value is provided on the inside of metal terminal Resistance, this resistance one end are connected with metal terminal, and other end accesses the electrode of LED, this resistance will be formal dress after alternating current is connected LED luminescent wafers divide current limliting.Set printing elargol circuit conductive at the both ends of ceramic substrate, between two printing elargol circuits It is provided with forward LED chip, after forward LED chip is using gold thread connection, prints two LED at edge between elargol circuit wherein One electrode is respectively with printing elargol connection.The function of this part is by the way that two bullion glue line powerings, LED wafer will It is lit, but this part LED only has lighting function.Printing elargol circuit both ends set 4 groups of formal dress chips, every group 2, In group LED wafer two-by-two be connected present up and down arrangement for two rows, the incorgruous fixation of electrode direction of two rows of forward LED chips, i.e., on To the right, then the anode of a row LED then to the left, often arranges one of electrode of forward LED chip to one row's LED wafer anode of face below It is connected with a pin of 0603 type resistance, another electrode then accesses corresponding elargol printed wire.This 4 groups of formal dress LED wafer will be provided with current direction selection function and lighting function, and alternating current will be rectified after by this 4 groups of LED wafers, whole Only there is the LED light emitting arrays that specific direction is lighted all the way between supply printing elargol circuit in the form of direct current after stream.

A kind of AC types forward LED filament provided by the utility model using 0603 type electric resistance partial pressure by the above-mentioned means, limited The compound action of stream and the rectification forward LED chip at both ends so that filament can be directly accessed electric main, and conventional bulb is needed Special alternating current is set to be converted to the driving power of direct current to saving, so as to reduce the whole Material Cost of product and life Produce human cost.Succeeding in developing for this technology will be so that AC type forward LEDs have the stronger market competitiveness.

Description of the drawings

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the supporting structure schematic diagram of a kind of AC types forward LED filament that the utility model embodiment provides.

Fig. 2 be the forward LED chip fixed form of a kind of AC types forward LED filament that the utility model embodiment provides and Welding manner schematic diagram.

Fig. 3 is the electrical schematic diagram of a kind of AC types forward LED filament that the utility model embodiment provides.

Icon：101- metallic conduction terminals；102- prints elargol circuit；103-0603 types resistance prints elargol pad； 104-LED chip tie points；105- ceramic substrates；201- forward LED chips；202-0603 type resistance；203- gold threads.

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 that the supporting structure of a kind of AC types forward LED filament that the utility model embodiment provides shows It is intended to.The stent includes metallic conduction terminal 101,102,0603 type resistance pad 103 of printing elargol circuit, LED crystalline substances Piece tie point 104.The metal terminal 101 has iron material nickel plating to be made；The elargol circuit 102 is burnt using high temperature Elargol is sintered on the edge of 105 long side of ceramic substrate by the mode of knot, and the width of printing elargol circuit 102 is 0.2mm, thickness For 0.05mm, length 22mm.The size of the 0603 type resistance pad be width 0.6mm, length 0.3mm, one of them Pad is connected by printing elargol with metal terminal, and the pad pitch metal terminal 0.3mm-0.5mm of 0603 type resistance is to prevent Short circuit.

Fig. 2 is please referred to, Fig. 2 is the forward LED chip of a kind of AC types forward LED filament that the utility model embodiment provides Fixed form and welding manner schematic diagram.As shown in Fig. 2, the both ends of printing elargol circuit 102 set 4 groups of forward LED chips 201, each 2 groups of both ends, every group of forward LED chip 201 being connected by two first places forms.2 often held in printing elargol circuit 102 The fixed-direction of group forward LED chip 201 has anisotropy, 2 groups of forward LED chips 201 of 102 left end of printing elargol circuit Arrangement mode is that the positive electrode of the forward LED chip 201 of upper row is unified to the right, the positive electrode of the forward LED chip 201 of lower row Unification is to the left.The arrangement mode for printing 2 groups of forward LED chips 201 of 102 right end of elargol circuit is the forward LED chip of upper row 201 positive electrode is unified to the left, and the positive electrode of the forward LED chip 201 of lower row is unified to the right.This 4 groups of forward LED chips 201 Two end electrodes in group using gold thread 203 respectively with its to printing elargol circuit 102 and LED wafer tie point 104 be connected. It prints among elargol circuit, the unified forward LED chip 201 to the right of 26 positive electrodes is set, and using gold thread 203 and printing silver Tree lace road is connected about 102.

After completing above step, one process is fixed using tin cream in the pad area of 0603 type resistance and accurately calculates resistance value Chip-R, the resistance value that the utility model uses is 960 Ω.The upper and lower surface after resistance again in ceramic substrate has been fixed to be coated with One layer by mixing red fluorescence powder and the silica gel of yellowish green fluorescent powder reconcile into fluorescent glue by LED wafer 201, gold thread 203, 0603 type resistance, printing elargol circuit 102, ceramic substrate 105 are fully wrapped around in fluorescent glue, then in 150 DEG C of oven Baking is formed by curing final product in 4 hours.

Fig. 3 is please referred to, Fig. 3 is a kind of electrical schematic diagram of AC types forward LED filament provided by the utility model.From figure In we can clearly obtain the design principle of the utility model：220V alternating currents divide by being arranged on the resistance R at LED groups both ends After pressing current limliting, the rectification LED being arranged on the inside of resistance is flowed through, unidirectional drive LED luminescent wafers are flowed to after over commutation LED rectifications Group.

Claims

1. a kind of AC types forward LED filament, which is characterized in that a kind of AC types forward LED filament is by metal terminal, formal dress LED wafer, gold thread, fluorescent colloid, 0603 type resistance, printing elargol circuit, ceramic substrate composition, the metallic conduction terminal The both ends of ceramic substrate are arranged on, the printing elargol circuit is arranged on the both sides of ceramic substrate long side and in ceramic substrate Both ends are maintained a certain distance with metal terminal, and the 0603 type resistance pad is arranged on ceramics by the way of elargol printing Simultaneously using 0603 type resistance of the tin cream welding manner welding with specific resistance value on the inside of the metal terminal at substrate both ends, it is described just Dress LED wafer is printed the part between elargol circuit in ceramic substrate and is uniformly arranged, and sets up separately at the both ends of printing elargol circuit 4 groups of forward LED chips are put, are connected in every group comprising 2 LED, the forward LED chip and printing elargol circuit using gold thread It connects, the fluorescent colloid is reconciled by mixing red fluorescence powder and the silica gel of yellowish green fluorescent powder and formed coated in ceramic substrate Upper and lower surface, by LED wafer（201）, gold thread（203）, 0603 type resistance（202）, printing elargol circuit（102）, ceramic substrate （105）It is fully wrapped around in fluorescent glue.

2. a kind of AC types forward LED filament according to claim 1, it is characterized in that a kind of AC types forward LED lamp 0603 type resistance of silk is arranged on ceramic substrate both ends, is most wrapped in ceramic substrate by fluorescent colloid at last.

3. a kind of AC types forward LED filament according to claim 1, it is characterized in that a kind of AC types forward LED lamp The forward LED chip of silk is connected using gold thread with printing a foot of elargol circuit and 0603 type resistance.