CN202352674U

CN202352674U - Light-emitting diode (LED) substrate with U-shaped return circuit

Info

Publication number: CN202352674U
Application number: CN2011204446649U
Authority: CN
Inventors: 蒋秀华; 邓立
Original assignee: JIANGSU ECO NEW ENERGY TECHNOLOGY Co Ltd
Current assignee: JIANGSU ECO NEW ENERGY TECHNOLOGY Co Ltd
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2012-07-25
Anticipated expiration: 2021-11-10

Abstract

The utility model discloses a light-emitting diode (LED) substrate with a U-shaped return circuit and relates to the field of substrates for LED illumination. According to the substrate, a base plate is made of a high heat-conduction metal plate; an electric insulating layer is coated on an outer surface of the base plate; a plurality of U-shaped copper-foil return circuit conducting wires are arranged in the insulating layer, and are connected in series and welded with a plurality of LED chips; and a surface-mounted resistor and a constant-current element device are arranged at one end of each of the return circuit conducting wires, and are used for providing constant current for the U-shaped current return circuit. By the base plate, a glowing effect cannot be influenced by the change of output voltage; and after the power of the LED substrate is determined, the LED chips arranged on the substrate can be reduced under the condition that enough light is ensured, so that the production cost is reduced.

Description

U-shaped loop LED substrate

Technical field

The utility model relates to the LED illumination and uses substrate field, a kind of specifically U-shaped loop LED substrate.

Background technology

Led light source has high life, low-power consumption characteristics.The LED lighting apparatus is used widely in various commercial situations in recent years; The floor plan scheme of the led light source substrate that it adopts generally adopts led chip to be divided into many groups, every group of constant current design; The electric current of each output loop can be adjusted, for the LED substrate provides a constant electric current.In addition, a plurality of LED combining and configuring are placed in series connection, connect power line through binding post, and rectification circuit is decided current circuit, becomes direct current to pass through binding post AC rectification, and direct current is that LED provides illumination to drive through current circuit.Though above technology has adopted the led chip series circuit, this technical loss problem that also need consider light quantity.

Summary of the invention

Goal of the invention: the technical problem that the utility model will solve is, many U-shaped return wires are set on the LED substrate, and every loop is all controlled by the constant current components and parts; And formation constant-current circuit; To guarantee luminosity, when the circuit board change in voltage, the output of the light of LED is constant.

Technical scheme: use the high-thermal conductive metal plate to make base plate as material; On base plate, make insulating coating with inorganic material; In insulating barrier, arrange many U-shaped Copper Foil return wires; Many the U-shaped loop is nested together, and on the loop, be installed in series led chip and configuration constant current components and parts, for many U-shaped current circuits provide constant current.

Beneficial effect: the utlity model has two advantages:

The one, each led chip all is connected in the circuit loop, and each U-shaped circuit loop is arranged on the substrate and is provided with constant-current device, can not influence illumination effect because of the variation of output voltage.

The 2nd, every LED series connection semiconductor is installed a plurality of led chips on the loop, after confirming its power and guarantee that can reduce the led chip that is installed on the substrate under the enough bright situation reduces production costs.

Description of drawings

Fig. 1 is the utility model front view.

Fig. 2 is the utility model upward view.

Fig. 3 is the led chip sketch map.

1. base plates, 2. electric insulation layers, 3. return wire 4.LED chips, 5. Chip-Rs, 6. constant current components and parts, 7. attachment plugs, 8. light-emitting diodes among the figure.

Embodiment

Like Fig. 1, shown in 2; Application one deck electric insulation layer 2 on an outer surface of base plate 1; In electric insulation layer 2, arrange many U-shaped return wires 3, a plurality of led chips 4 of series connection welding on the return wire 3 are provided with at an end of U-shaped return wire 3 Chip-R 5 and constant current components and parts 6 are installed.

Still like Fig. 1, shown in 2, described base plate 1 adopts the aluminum metallic plate of high heat conduction, electric insulation layer 2 is made up of insulating resin, inorganic silicon dioxide and aluminium oxide, U-shaped return wire 3 adopts the Copper Foils making, many U-shaped return wires 3 are nested together.

Like Fig. 1,2, shown in 3; Light-emitting diode 8 is installed on the led chip 4; The quantity of the led chip 4 of welded and installed equates on every U-shaped return wire 3, and can the power of LED substrate be adjusted to 36W from 25W through on every return wire 3, increasing and decreasing led chip 4 simultaneously.

Claims

1.U shape loop LED substrate comprises base plate (1), electric insulation layer (2), return wire (3), led chip (4), Chip-R (5), constant current components and parts (6), attachment plug (7), light-emitting diode (8); It is characterized in that: application one deck electric insulation layer (2) on an outer surface of base plate (1); In electric insulation layer (2), arrange many U-shaped return wires (3); Return wire (3) is gone up series connection welding a plurality of led chips (4), is provided with at an end of U-shaped return wire (3) Chip-R (5) and constant current components and parts (6) are installed.

2. U-shaped according to claim 1 loop LED substrate; It is characterized in that: base plate (1) adopts the aluminum metallic plate of high heat conduction; Electric insulation layer (2) is made up of insulating resin, inorganic silicon dioxide and aluminium oxide; U-shaped return wire (3) adopts Copper Foil to make, and many U-shaped return wires (3) are nested together and are arranged on the base plate (1).

3. U-shaped according to claim 1 and 2 loop LED substrate; Its characteristic also is: the quantity that every U-shaped return wire (3) is gone up the led chip (4) of welded and installed equates; And can the power of LED substrate be adjusted to 36W from 25W through on every return wire (3), increasing and decreasing led chip (4) simultaneously.