CN208253260U - A shape-variable continuous spot COB light strip - Google Patents

Abstract

The utility model belongs to the technical field of lamp manufacturing, in particular to a shape-variable continuous facula COB lamp strip, which comprises a flexible circuit board, a plurality of luminous elements electrically connected with the flexible circuit board and packaging glue for packaging the luminous elements on the flexible circuit board, wherein the distance between two adjacent luminous elements is 2-8 mm; the utility model discloses a spacing to light emitting component makes the injecing, makes the lamp area can realize the effect of continuous facula, simultaneously, under flexible circuit board's effect, the lamp area can also be as required carry out the change of shape, has greatly satisfied the demand in market.

Description

A shape-variable continuous spot COB light strip

technical field

The utility model belongs to the technical field of lamp manufacturing, in particular to a COB lamp strip with variable shape and continuous light spot.

Background technique

The light strip refers to welding the LED light on the copper wire or the strip-shaped flexible circuit board with a special processing technology, and then connecting it to the power supply to emit light. It is named for its shape like a light strip when it emits light. It is an intermittent point light source effect; while COB is a high-efficiency integrated surface light source technology that directly pastes LED chips on a mirror metal substrate with high reflectivity, and what it emits is a uniformly distributed light surface.

With people's continuous understanding of LED products and the improvement of individual needs, people have higher and higher requirements for the performance and appearance design of LED products. Combining the advantages of strip lights and COB light sources, if COB technology is applied to lights In the strip, not only can the light strip produce a continuous light spot effect, but also the shape of the light strip can be changed according to the needs, which largely meets the needs of the market.

In the prior art, although some products combining COB technology and light strips are disclosed, none of them have the advantage of being able to change the shape of the light strip at the same time and make the light strip produce a continuous light spot effect.

Utility model content

The purpose of the utility model is to provide a shape-variable continuous light spot COB light strip for the deficiencies of the prior art. The COB light strip can not only produce continuous light spot effects, but also change the shape of the light strip according to requirements. .

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A shape-variable continuous spot COB light strip, including a flexible circuit board, a plurality of light-emitting elements electrically connected to the flexible circuit board, and an encapsulant for encapsulating the plurality of light-emitting elements in the flexible circuit board, The distance between two adjacent light-emitting elements is 2 mm to 8 mm. When the distance between the light-emitting elements is less than 2mm, it will increase the production cost, and when the COB light strip is deformed, it is easy to cause the chip and the flexible circuit board to delaminate and die; when the distance between the light-emitting elements is greater than 8mm, the light effect of the light strip is discontinuous , become a point light source, and the continuous light spot effect of the light strip can only be achieved if the light emitting element is set within this range.

As an improvement of the shape-variable continuous spot COB light strip described in the present invention, the distance between two adjacent light-emitting elements is 3 mm to 7 mm. This distance range of the light-emitting elements can make the continuous light spot effect of the light strip to achieve a better effect, and can also adapt to most shapes of the light strip.

As an improvement of the shape-variable and continuous light spot COB light strip of the present invention, the light-emitting element includes a crystal-bonding glue and a chip connected to the crystal-bonding glue. Die-bonding glue can bond the chip to the flexible circuit board, allowing the chip to form an electrical path with the flexible circuit board.

As an improvement of the shape-variable continuous spot COB lamp strip described in the present invention, the flexible circuit board is strip-shaped, ring-shaped, curved-surface-shaped or arc-shaped. The flexible circuit board can be changed in shape according to needs, can be bent, folded, and can be set into strips, rings, curved surfaces or arcs, etc., which greatly enhances the flexibility of the light strip and meets the needs of various designs.

As an improvement of the shape-variable continuous light spot COB lamp strip described in the present invention, the flexible circuit board is provided with several copper foil pads. The copper foil pad makes the light-emitting element electrically connected to the flexible circuit board. At the same time, the copper foil pad made of copper has excellent heat dissipation performance, which can take away the heat generated by the light-emitting element when it is working, ensuring the stable operation of the light-emitting element. , improve the service life of light-emitting elements.

As an improvement of the shape-variable and continuous light spot COB light strip described in the present invention, the thickness of the flexible circuit board is 0.1mm~1mm. If the thickness of the flexible circuit board is less than 0.1mm, the flexible circuit board will easily cause the circuit to break when it is bent or folded; if the thickness of the flexible circuit board is greater than 1mm, it will be difficult to bend or fold the flexible circuit board well. Only when the thickness of the circuit board is 0.1mm~1mm can the flexible circuit board be able to bend, fold or change its shape normally.

As an improvement of the shape-variable continuous light spot COB lamp strip described in the present invention, the thickness of the flexible circuit board is 0.5mm. This thickness can optimize the physical effect of deformation of the flexible circuit board.

As an improvement of the shape-variable and continuous light spot COB light strip of the present invention, the outer periphery of the flexible circuit board is bonded with dam glue, and the packaging glue is connected with the dam glue. The addition of dam glue can effectively surround the packaging glue, and can form an ideal wall shape according to the needs, further strengthening the packaging effect.

As an improvement of the shape-variable and continuous light spot COB lamp strip described in the present invention, the encapsulation glue is heat-resistant silica gel, and fluorescent powder is mixed in the encapsulation glue. The encapsulant can effectively protect the light-emitting components and the flexible circuit board, and at the same time, it is mixed with phosphor powder, which can control the light color of the light strip.

As an improvement of the shape-variable and continuous light spot COB lamp strip described in the present invention, the crystal-fixing glue is solder paste, silver glue or insulating glue. Among them, solder paste and silver glue are conductive colloids, insulating glue is insulating colloid, and the die-bonding glue can bond the chip on the copper foil pad to form an electrical path. The corresponding colloid can be selected according to the type of chip.

Compared with the prior art, the utility model limits the spacing of the light-emitting elements, so that the light strip can achieve the effect of continuous light spots, and at the same time, under the action of the flexible circuit board, the light strip can also change its shape according to needs , which greatly meets the market demand.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic implementation of the utility model and its description are used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 is the structural representation in the utility model;

Fig. 2 is the structural representation of embodiment 1 in the utility model;

Fig. 3 is a schematic structural view of Embodiment 2 of the present invention.

Among them, 1-flexible circuit board; 11-copper foil pad; 12-dam glue; 2-packaging glue; 3-light-emitting element; 31-solid crystal glue; 32-chip.

Detailed ways

Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", horizontal" etc. are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations on the Invention.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The utility model will be described in further detail below in conjunction with the accompanying drawings, but not as a limitation to the utility model.

Example 1

As shown in Figures 1 and 2, a shape-variable continuous spot COB light strip includes a flexible circuit board 1, a plurality of light-emitting elements 3 electrically connected to the flexible circuit board 1, and a plurality of light-emitting elements 3 packaged in the flexible circuit The encapsulation glue 2 of the board 1, the distance between two adjacent light-emitting elements 3 is 2mm-8mm. If the distance between the light-emitting elements 3 is less than 2mm, the cost is high, which is not conducive to production. With the purpose of producing continuous light spots.

Preferably, the distance between two adjacent light-emitting elements 3 is 3mm-7mm.

Preferably, the light-emitting element 3 includes a die-bonding glue 31 and a chip 32 connected to the die-bonding glue 31. The die-bonding glue 31 is a solder paste, and the positive and negative poles of the chip 32 are bonded to the positive and negative electrodes of the copper foil pad 11 respectively. On the negative electrode, the chip 32 and the flexible circuit board 1 form an electrical path.

Preferably, the flexible circuit board 1 is strip-shaped, ring-shaped, curved-surface-shaped or arc-shaped.

Preferably, the flexible circuit board 1 is provided with several copper foil pads 11 , and the light emitting element 3 is electrically connected to the flexible circuit board 1 through the copper foil pads 11 .

Preferably, the thickness of the flexible circuit board 1 is 0.1mm~1mm.

Preferably, the thickness of the flexible circuit board 1 is 0.5mm.

Preferably, the periphery of the flexible circuit board 1 is bonded with a dam glue 12, and the packaging glue 2 is connected to the dam glue 12. The dam glue 12 can surround the packaging glue 2 to form an ideal wall shape, further Encapsulation effect is enhanced.

Preferably, the encapsulation glue 2 is heat-resistant silica gel, and phosphor powder is mixed in the encapsulation glue 2 . The light-emitting element 3 works to emit light, and the light passes through the fluorescent powder to change the color of the emitted light.

Example 2

As shown in Figures 1 and 3, the difference between this embodiment and Embodiment 1 is that the crystal-bonding glue 31 in this embodiment is silver glue or insulating glue, and the crystal-bonding glue 31 bonds the chip 32 to the copper foil pad 11 and then connect the positive and negative wires of the chip 32 to the positive and negative electrodes of the copper foil pad 11 respectively, so that the chip 32 and the flexible circuit board 1 form an electrical path.

Other structures are the same as those in Embodiment 1, and will not be repeated here.

The above description shows and describes several preferred embodiments of the present utility model, but as mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used In various other combinations, modifications and environments, and can be modified by the above teachings or skills or knowledge in related fields within the scope of the utility model concept described herein. However, changes and changes made by those skilled in the art do not depart from the spirit and scope of the utility model, and should all be within the protection scope of the appended claims of the utility model.

Claims (10)

1. a kind of shape can be changed continuity hot spot COB light bar, it is characterised in that: including flexible circuit board (1) and the flexible electrical The a plurality of light-emitting elements (3) and multiple light-emitting components (3) are packaged in the flexible circuit board that road plate (1) is electrically connected (1) packaging plastic (2), the spacing of the two neighboring light-emitting component (3) are 2mm ~ 8mm.

2. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the two neighboring hair The spacing of optical element (3) is 3mm ~ 7mm.

3. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the light-emitting component (3) Including crystal-bonding adhesive (31) and the chip (32) being connect with the crystal-bonding adhesive (31).

4. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the flexible circuit board It (1) is bar shaped, annular, curved form or arc.

5. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the flexible circuit board (1) several copper foil pads (11) are provided with.

6. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the flexible circuit board (1) with a thickness of 0.1mm ~ 1mm.

7. shape according to claim 6 can be changed continuity hot spot COB light bar, it is characterised in that: the flexible circuit board (1) with a thickness of 0.5mm.

8. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the flexible circuit board (1) peripheral bond has box dam glue (12), and the packaging plastic (2) connect with the box dam glue (12).

9. shape according to claim 1 can be changed continuity hot spot COB light bar, it is characterised in that: the packaging plastic (2) is Heat-proof silica gel, and fluorescent powder is mixed in the packaging plastic (2).

10. shape according to claim 3 can be changed continuity hot spot COB light bar, it is characterised in that: the crystal-bonding adhesive (31) For tin cream, elargol or insulating cement.