CN212161810U

CN212161810U - High-voltage COB lamp strip

Info

Publication number: CN212161810U
Application number: CN202021390081.8U
Authority: CN
Inventors: 徐姗
Original assignee: Huizhou Wisva Optoelectronics Co ltd
Current assignee: Huizhou Wisva Optoelectronics Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-12-15
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses a high-pressure COB lamp area, it includes a plurality of concatenation cell boards together and wraps up the protective sheath of cell board, and each cell board is double-sided circuit board, and it openly is equipped with the LED circuit, connects LED chip on the pad of LED circuit and wraps up the fluorescent colloid of LED chip. The back of the unit board is provided with a power supply main circuit connected with the LED circuit, and the adjacent unit boards are electrically connected through the power supply main circuit. The utility model discloses high-pressure COB lamp area is through adopting double-sided circuit board as the cell board, at the back design power main line of cell board, replaces the thread sinle silk of original pre-buried income PVC centre form, and every cell board self forms the return circuit, need not to collude the line, only needs to connect into required length to a plurality of cell boards promptly, wraps up an outer protective sheath again and can form high-pressure COB lamp area, its simple structure, the manufacturing of being convenient for.

Description

High-voltage COB lamp strip

Technical Field

The utility model relates to a technical field of LED illumination, in particular to high-pressure COB lamp area.

Background

As shown in fig. 1-2, the cell board 1 of the high-voltage LED strip (> 48V) in the current market generally adopts the independent packaged lamp bead 21 as the light source, the cell board 1 is inserted into a PVC inner mold 2 in advance, the inner mold 2 has a main power line core 21 (a zero line/a live line, a positive pole or a control main line), the cell board 1 forms a loop with the main power line core 21 in the inner mold 1 through a hook line 3, and the outer of the inner mold 3 is surrounded by a protective sleeve 4 through secondary forming. The high-voltage lamp strip needs to adopt a post-forming line hooking manufacturing mode, and is complex in process and high in cost.

The COB lamp belt belongs to one of the LED lamp belts, but only low-voltage products are used, and under the same power, the low-voltage COB lamp belt is low in voltage and large in current, so that the voltage drop of the head end and the tail end of the product is large, and the head-tail brightness difference of the lamp belt is obvious. Although the problem of poor brightness can be solved by adopting a constant current scheme, a constant current chip needs to be added, and the product cost is increased. And the problem of complex process and high cost can also exist by adopting the wire hooking structure of the existing high-voltage LED lamp belt.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims at providing a high-pressure COB lamp area, its simple structure, the manufacturing of being convenient for.

In order to achieve the above object, the utility model provides a high-pressure COB lamp area, including a plurality of concatenation cell boards and parcel together the protective sheath of cell board. Each unit board is a double-sided circuit board, and the front side of the unit board is provided with an LED circuit, an LED chip connected to a bonding pad of the LED circuit and fluorescent colloid wrapping the LED chip. The back of the unit board is provided with a power supply main circuit connected with the LED circuit, and adjacent unit boards are electrically connected through the power supply main circuit.

Optionally, the LED chip is a flip chip or a CSP chip.

Optionally, the protective sleeve is made of PVC or silicone.

Optionally, the high-voltage COB strip formed by the protective sleeve and the cell board is formed by solid extrusion.

Optionally, the high-voltage COB strip formed by the protective sleeve and the unit board is formed by hollow extrusion.

The utility model discloses an adopt double-sided circuit board as the cell board, at the back design power main line of cell board, replace the thread sinle silk of original pre-buried income PVC centre form, every cell board self becomes the return circuit, need not to collude the line, only needs to connect into required length a plurality of cell boards promptly, wraps up an outer protective sheath again and can form high-pressure COB lamp area.

And because the pretreatment that the line is hooked to form a loop is not needed, the high-voltage COB lamp strip can adopt a one-step forming process, the efficiency is high, the cost is lower, the influence of repeated process folding and heating on the COB lamp strip is reduced, and the one-step yield can be effectively improved.

And the front of the unit board is provided with the fluorescent colloid wrapping the LED chip, linear luminescence of the high-voltage COB lamp strip can be realized, the problem of discontinuous luminescence is effectively solved, the uniform and softer light emission is ensured, and the cost is lower compared with that of the constant current chip.

Drawings

Fig. 1 is a schematic structural diagram of a unit board of a conventional high-voltage LED strip;

fig. 2 is a schematic diagram of a conventional high-voltage LED strip;

fig. 3 is a schematic structural view of a unit board of the high-voltage COB lamp strip of the present invention;

fig. 4 is a cross-sectional view of a unit board of the high-voltage COB lamp strip of the present invention;

fig. 5 is a cross-sectional view of an embodiment of the high-voltage COB lamp strip of the present invention;

fig. 6 is the cross-sectional view of another embodiment of the high-pressure COB lamp area of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 3-6 in the specification, an embodiment of the present invention provides a high-voltage COB lamp strip, which includes a plurality of unit boards 5 spliced together and a protective sleeve 7 wrapping the unit boards 5. Each unit board 5 is a double-sided circuit board, and the front surface of the unit board is provided with an LED circuit 52, an LED chip 51 connected to a pad of the LED circuit 52, and a fluorescent colloid 6 wrapping the LED chip 51. The back of the unit board 5 is provided with a power main line 53 connected with the LED line 52, and the power main line 53 and the LED line 52 can form a complete loop. The adjacent unit boards 5 are electrically connected through a power main circuit 53 to realize the integral electrification of the lamp strip.

The utility model discloses an adopt double-sided circuit board as cell board 5, at the back design power main line 53 of cell board 5, replace the thread sinle silk of original pre-buried income PVC centre form, every cell board 5 self forms the return circuit, need not to collude the line, only needs to connect into required length to a plurality of cell boards 5 promptly, wraps up an outer protective sheath 7 again and can form high-pressure COB lamp area.

And, be provided with the phosphor colloid 6 of parcel LED chip 51 in the front of cell board 5, can realize that the threadiness in high-pressure COB lamp area is luminous, effectively solve the discontinuous problem of giving out light, guarantee simultaneously that the light-emitting is even, softer, and compare in the cost of setting up the constant current chip lower.

Furthermore, the utility model provides a high-pressure COB lamp area can be through high-voltage electricity supply mode (> 48V), and the same power reduces the electric current and reduces the circuit pressure drop, and what messenger's product can be connected is longer. And, the power supply mode is more free without being limited to the adoption of rectification on a PCB or the direct current power supply mode of an external power supply/module, and diversified selections can be provided for users.

Optionally, in this embodiment, the LED chip 51 is a flip chip or a CSP chip. Through regard as the lamp area light source with flip chip or CSP chip, light source density can be done higher, further improves the homogeneity of lamp area light-emitting.

Optionally, the protective sheath 7 is made of PVC or silicone. Specifically, as shown in fig. 5 to 6, the protective sleeve 7 and the cell board 5 are formed into the COB strip by using a solid extrusion molding process or a hollow extrusion molding process, which can be applied to different one-step molding processes.

The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.

Claims

1. A high-voltage COB lamp belt comprises a plurality of spliced unit boards and a protective sleeve wrapping the unit boards, and is characterized in that each unit board is a double-sided circuit board, and an LED circuit, an LED chip connected to a bonding pad of the LED circuit and fluorescent colloid wrapping the LED chip are arranged on the front side of each unit board; the back of the unit board is provided with a power supply main circuit connected with the LED circuit, and adjacent unit boards are electrically connected through the power supply main circuit.

2. The high-voltage COB lamp strip of claim 1, wherein the LED chip is a flip chip or CSP chip.

3. The high-voltage COB lamp strip of claim 2, wherein the protective sleeve is made of PVC or silicone.

4. The high-voltage COB strip of any one of claims 1-3, wherein the high-voltage COB strip formed by the protective sleeve and the cell board is formed by solid extrusion.

5. The high-voltage COB strip of any one of claims 1-3, wherein the high-voltage COB strip formed by the protective sleeve and the cell board is formed by hollow extrusion.