CN210950885U

CN210950885U - Flexible LED lamp area

Info

Publication number: CN210950885U
Application number: CN201922293826.2U
Authority: CN
Inventors: 韩丛强
Original assignee: Guangdong Cooper Optoelectronics Inc Co ltd
Current assignee: Guangdong Cooper Optoelectronics Inc Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-07
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a flexible LED lamp strip, which comprises a substrate, an LED light source, an encapsulation layer and a light guide layer, wherein the substrate is made of flexible material, and the surface of the substrate is provided with a positive electrode layer and a negative electrode layer in parallel along the length direction; the LED light sources are distributed along the length direction of the substrate and are respectively electrically connected with the positive electrode layer and the negative electrode layer; the substrate, the LED light source, the positive electrode layer and the negative electrode layer are packaged by the packaging layer, so that the packaging layer completely and hermetically wraps the whole substrate, the sealing performance is high, the waterproof performance is strong, a good protection effect is also achieved, and the flexible LED lamp strip is higher in toughness and stronger in torsion resistance; set up the leaded light layer in the outside of encapsulated layer simultaneously, leaded light layer sets up the LED light source one side that is located that covers the base plate at least for the light that the LED light source sent can carry out the leaded light through leaded light layer, and luminous effect is better, avoids the luminous dazzling effect of pointolite, and the installation is used more nimble conveniently, and the structure is practical reliable, and application scope is wider.

Description

Flexible LED lamp area

Technical Field

The utility model relates to a LED technical field, in particular to flexible LED lamp area.

Background

The flexible LED lamp area that has now welds the LED lamp pearl on the base plate as the light source, because the LED lamp pearl is that the pointolite is luminous, for improving decorative effect, generally sheathe the one deck in the outside has the shell of leaded light strip, the light that the LED lamp pearl sent forms the linear light source after the leaded light of leaded light strip, luminous effect is better, nevertheless because the waterproof sealing nature between shell and the base plate is relatively poor, application scope receives the restriction, and the protectiveness of shell is relatively poor, reduce LED lamp area twisting resistance, make LED lamp area easily by the twist-off.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a flexible LED lamp area can effectively improve the leakproofness, and the structure is more practical reliable.

According to the utility model discloses a flexible LED lamp area of first aspect embodiment, include:

the substrate is made of flexible materials, and a positive electrode layer and a negative electrode layer are arranged on the surface of the substrate side by side along the length direction;

the LED light sources are distributed along the length direction of the substrate and are respectively and electrically connected with the positive electrode layer and the negative electrode layer;

the packaging layer is wrapped on the outer side of the substrate to package the LED light source, the positive electrode layer and the negative electrode layer; and the number of the first and second groups,

and the light guide layer is arranged on the outer side of the packaging layer and at least covers the substrate on one side of the LED light source.

According to some embodiments of the utility model, leaded light layer follows the left side or the right side of base plate and protrusion in the encapsulated layer forms the leaded light strip.

According to some embodiments of the utility model, the surface of leaded light strip is circular arc curved surface.

According to the utility model discloses a some embodiments, both sides about the base plate leaded light layer coats and is stamped the light shield layer.

According to the utility model discloses a some embodiments, the encapsulated layer is transparent silica gel material, leaded light layer is coloured silica gel material.

According to some embodiments of the utility model, light emitting component is LED chip or LED lamp pearl, LED lamp pearl includes LED chip and packaging support, the LED chip encapsulate in on the packaging support.

According to some embodiments of the present invention, the LED light source is connected in parallel or in series.

According to some embodiments of the invention, the substrate, the positive pole layer and the surface covering of negative pole layer have the solder mask.

According to the utility model discloses flexible LED lamp area has following beneficial effect at least:

the flexible LED lamp strip is characterized in that a substrate is made of a flexible material, a positive electrode layer and a negative electrode layer are arranged on the surface of the substrate side by side along the length direction, the positive electrode layer and the negative electrode layer are respectively and electrically connected with an LED light source and used for supplying power to the LED light source, the substrate, the LED light source, the positive electrode layer and the negative electrode layer are packaged by utilizing a packaging layer, the packaging layer completely and hermetically wraps the whole substrate, the sealing performance is high, the waterproof performance is strong, a good protection effect is also achieved, the flexibility of the flexible LED lamp strip is higher, and the torsion resistance; set up the leaded light layer in the outside of encapsulated layer simultaneously, the leaded light layer sets up the LED light source one side that is located that covers the base plate at least, and the leaded light layer has at least partly can cover on the LED light source promptly for the light that the LED light source sent can carry out the leaded light through the leaded light layer, and luminous effect is better, avoids the luminous dazzling effect of pointolite, and flexible LED lamp area volume can make littleer, and installation and use is more nimble convenient, and the structure is practical reliable, and application scope is wider.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a parallel connection structure of LED light sources in a flexible LED strip according to an embodiment of the present invention;

fig. 2 is a schematic view of a serial connection structure of LED light sources of the flexible LED strip according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure view of a flexible LED strip according to an embodiment of the present invention;

fig. 4 is a schematic view of a cross-sectional structure of a flexible LED strip according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the flexible LED strip provided by the embodiment includes a substrate 10, an LED light source 20, a packaging layer 30, and a light guide layer 40, where the substrate 10 is made of a flexible material, a positive electrode layer 11 and a negative electrode layer 12 are disposed on a surface of the substrate 10, the positive electrode layer 11 and the negative electrode layer 12 are covered on the surface of the substrate 10 side by side and extend along a length direction of the substrate 10, the positive electrode layer 11 and the negative electrode layer 12 adopted by the embodiment are both copper foils, the copper foils are combined with the substrate 10 by a lamination process, and the substrate 10 is made of a polyimide or polyester film material.

Referring to fig. 1, the LED light sources 20 are arranged along the central axis of the substrate 10 in the length direction, that is, the LED light sources 20 are arranged at the center of the substrate 10, the positive electrode layer 11 and the negative electrode layer 12 are located at two sides of the LED light sources 20, and each LED light source 20 is fixed on the substrate 10 by welding, it can be understood that the positive electrode end of the LED light source 20 is electrically connected to the positive electrode layer 11, the negative electrode end is electrically connected to the negative electrode layer 12, and the positive electrode layer 11 and the negative electrode layer 12 are used to supply power to the LED light sources 20.

Referring to fig. 3, in this embodiment, the encapsulation layer 30 wraps the outer side of the substrate 10, the LED light source 20, the positive electrode layer 11 and the negative electrode layer 12 are encapsulated by the encapsulation layer 30, the encapsulation layer 30 completely encapsulates the periphery of the substrate 10, and can be tightly attached to the substrate 10 and the LED light source 20, the positive electrode layer 11 and the negative electrode layer 12 on the substrate 10, so that the encapsulation layer 30 meets the requirement of high sealing property, the sealing property is high, the waterproof property is strong, the substrate 10 is wrapped by the encapsulation layer 30, the toughness is improved, the stretch-resistant and twisting-resistant capabilities are stronger, and a good protection effect is achieved. When the packaging structure is manufactured, the positive electrode layer 11 and the negative electrode layer 12 are formed on the substrate 10 in a laminating mode, then the LED light source 20 is welded, after welding is completed, the hot melt adhesive is wrapped on the outer side of the substrate 10 through the encapsulation process, and the packaging layer 30 is formed after solidification to be shaped.

Referring to fig. 3, in the embodiment, the light guide layer 40 is disposed on the outer side of the package layer 30, the light guide layer 40 is disposed on the upper side, the lower side and the left side of the substrate 10, and the light emitted from the LED light source 20 can be guided through the light guide layer 40, so that the light can be diffused, and thus the light can be emitted on the upper surface, the lower surface and the left side of the substrate 10, and the light emitting effect is better. Compared with the traditional LED lamp strip, the surface light source can emit light without increasing a shell, the manufacturing cost is greatly reduced, the size of the LED lamp strip is smaller, the installation and the use are flexible and convenient, and the structure is practical and reliable. It can be understood that the light guide layer 40 can be disposed at different positions of the encapsulation layer 30 according to actual use requirements, and the light guide layer 40 covers at least one side of the LED light source 20 of the substrate 10, such as the upper side and the right side of the substrate 10.

Referring to fig. 4, in some embodiments, the light guide layer 40 is disposed on the upper side, the lower side and the left side of the substrate 10, and the light guide layer 40 extends and protrudes along the left side, and the light guide bar 41 extends along the length direction of the substrate 10, so that the light guide bar 41 is formed on the left side of the substrate 10, the longitudinal height of the light guide bar 41 is greater than the longitudinal height of the encapsulation layer 30, which is beneficial to increasing the light emitting area, and thus, a linear light source is formed by guiding light through the light guide bar 41, and the light emitting effect is better. Of course, the light guide bar 41 may be disposed on the right side of the substrate 10, and is not limited to the structure shown in the present embodiment.

In the embodiment, the outer surface of the light guide bar 41 is an arc curved surface, as shown in fig. 4, the cross section of the light guide bar 41 is mushroom-shaped, so that the light guide effect is better, and the decoration effect is better.

As shown in fig. 4, in the embodiment, the light guide layers 40 on the upper side and the lower side of the substrate 10 are respectively covered with the light shielding layer 50, the light is intensively emitted from the light guide strips 41 through the shielding of the light shielding layer 50, and the light shielding layer 50 can be made of a glue layer with a light reflecting effect, so that the light emitted by the LED light source 20 is reflected on the inner wall of the light shielding layer 50, the light emitting brightness of the light guide strips 41 is higher, and the light emitting effect is better.

The packaging layer 30 that this embodiment adopted is transparent silica gel material, and leaded light layer 40 is coloured silica gel material, and the light that LED light source 20 produced can see through packaging layer 30, then leaded light layer 40 carries out the leaded light, for example adopts red leaded light silica gel, and the white light that LED light source 20 sent produces red light after leaded light layer 40 leaded light. Of course, light guide silica gel with other colors can be adopted, and silica gel materials with different colors can be selected according to different requirements.

In the embodiment, the adopted LED light source 20 is an LED chip, and since the LED chip has an independent light emitting function, the LED chip is directly welded on the substrate 10, the LED chip is connected with the positive electrode layer 11 and the negative electrode layer 12, the positive electrode layer 11 and the negative electrode layer 12 can be powered on to drive the LED chip to emit light, the sealing property of the encapsulating layer 30 is also beneficial to protecting the LED chip, so that the LED chip works more stably and reliably, the LED chip does not need to be further encapsulated, and the cost is further reduced.

In another embodiment, the LED light source 20 is an LED lamp bead, the LED lamp bead includes an LED chip and a package support, the LED chip is packaged on the package support, a Surface Mount Device (SMD) package technology is used for packaging, the package support is used for packaging the LED chip first, and then the substrate 10 and the LED lamp bead are packaged through the package layer 30, so that the structure is more stable and reliable, the LED chip is effectively protected, and the service life is prolonged.

Referring to fig. 1, in an embodiment, the LED chips are connected in parallel, that is, each LED chip is connected to a positive electrode layer 11 and a negative electrode layer 12, and the positive electrode layer 11 and the negative electrode layer 12 are connected to an input regulated power supply or a constant current source for supplying power.

Referring to fig. 2, in another embodiment, the LED chips are connected in series, 6 LED chips are welded on the substrate 10, adjacent LED chips are connected by a wire 21, the operating voltage of each LED chip is 3-4V, the power supply voltage is 24V, and appropriate resistors are added as required, so that the plurality of LED chips can be driven to emit light together. Of course, the circuit can also be made in a mode of combining series connection and parallel connection, for example, a plurality of LED chips are connected in series to form a light source group, and then the plurality of light source groups are connected in parallel, so that the combination is flexible, and the use is more convenient.

According to some embodiments of the present invention, the surface of substrate 10, positive electrode layer 11, and negative electrode layer 12 is covered with solder resist layer 13. This solder mask 13 is insulating printing ink, and solder mask 13 generally plays and hinders the insulating effect of welding, also can select PET membrane or PI membrane as solder mask 13 material, because these membranes have excellent mechanical properties, and its toughness is comparatively superior in thermoplastic, consequently can increase the crooked flexibility of base plate 10 at the PET membrane or PI membrane on base plate 10 surface, further improves the anti breaking performance in LED lamp area.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A flexible LED strip, comprising:

2. The flexible LED tape of claim 1, wherein the light guide layer forms a light guide strip along the left or right side of the substrate and protruding from the encapsulation layer.

3. The flexible LED light strip according to claim 2, wherein the outer surface of the light guide strip is a curved surface.

4. The flexible LED strip according to claim 2, wherein the light guide layers on the upper and lower sides of the substrate are covered with a light shielding layer.

5. The flexible LED strip according to any one of claims 1 to 4, wherein the encapsulation layer is a transparent silicone material and the light guide layer is a colored silicone material.

6. The flexible LED lamp strip according to any one of claims 1 to 4, wherein the LED light source is an LED chip or an LED lamp bead, the LED lamp bead comprises an LED chip and a packaging support, and the LED chip is packaged on the packaging support.

7. The flexible LED light strip according to claim 6, wherein the LED light sources are connected in parallel or in series.

8. The flexible LED strip according to any one of claims 1 to 4, wherein the surfaces of the substrate, the positive electrode layer and the negative electrode layer are covered with a solder resist layer.