LED surface mounted extrusion structure and LED light strip having same

Abstract

The LED extrusion structure comprises one or more LED light beads 1, a light panel 2 (e.g., a flexible circuit board) for powering the bead(s) to produce light, a light-blocking silica gel portion 3 for blocking the light over at least an angle, a coloured light-transmissive silica gel portion 4 for scattering the light propagating out of the structure over at least an angle, the light-blocking and transmissive silica gel portions being integrally connected and enclosing a cavity 5 accommodating the LED bead(s) and light panel in use. An inner surface of the light-transmissive silica gel portion may comprise a diffusion pattern and / or an outer surface may have a convex (e.g., cambered) form. The light-blocking portion may have a reflective inner surface. The light-transmissive portion may comprise an outer layer 8 covering an inner layer 7. The light-blocking portion may comprise a concave-convex bottom surface 9 and / or a transparent strip 10 for visualising a cutting line on the panel.

Description

TECHNICAL FIELD The present utility model relates to the technical field of light strips, and in particular to an LED surface mounted extrusion structure and an LED light strip having the surface mounted extrusion structure. BACKGROUND ART LED light strips have a wide range of applications in the market, such as furniture, cabinets, home decoration, commercial place exhibition, vehicle decoration, and toy decoration, and also play an irreplaceable role in courtyards and stage performances. Currently, flexible light strips with COB or CSP flip-chip LEDs in the market suffer from the problems that the light strips has a low luminous efficiency and average uniformity, and cannot continue to be used in an extremely narrow space or a space with strong weatherability. LED silica gel light strips are gradually widely used because of their characteristics such as flexibility, elasticity, durability, waterproofness, dust prevention, etc. However, existing LED surface mounted silica gel light strips (surface mounted devices, SMD) is implemented with a colored surface by adding a colored film to the light strips or is implemented with dispersion by means of a lens, which has problems such as a complicated processing process, increased thickness or reduced brightness, etc. SUMMARY In view of this, in order to solve the technical problems mentioned above, the present utility model provides an LED surface mounted extrusion structure and an LED light strip having the surface mounted extrusion structure. The specific technical solutions thereof are as follows. An LED surface mounted extrusion structure includes: at least one LED light bead; a light panel for supplying power to the LED light bead to light up the at least one LED light bead; a light-blocking silica gel portion for blocking propagation of light over at least an angle when the LED light bead is lit up; and a light-transmissive silica gel portion for scattering, over at least an angle, the light propagating to the outside when the LED light bead is lit up, wherein the light-transmissive silica gel portion is made of colored silica gel, wherein the light-blocking silica gel portion and the light-transmissive silica gel portion are integrally connected, and the light-blocking silica gel portion and the light-transmissive silica gel portion enclose a cavity for accommodating the light panel and the at least one LED light bead. Preferably, an inner surface of the light-transmissive silica gel portion close to the LED light bead has a diffusion pattern, the diffusion pattern allowing light to be scattered and propagate into the light-transmissive silica gel portion when the LED light bead is lit up. Preferably, an outer surface of the light-transmissive silica gel portion away from the LED light bead has a convex form to facilitate the scattering of the light propagating to the outside when the LED light bead is lit up. Preferably, the convex form is cambered. Preferably, the light panel is a flexible circuit board; and / or the light-blocking silica gel portion is made of opaque silica gel, and an inner surface of the lightblocking silica gel portion close to the LED light bead is capable of reflecting light. Preferably, the colored silica gel includes the following colors or one or more selected from a group consisting of the following colors: milk white, black, blue, green, orange, yellow, red and purple, to enable color matches with the environment in which the LED surface mounted extrusion structure is mounted. Preferably, the light-transmissive silica gel portion includes an inner silica gel layer and an outer silica gel layer surrounding the inner silica gel layer. Preferably, the number of the light-transmissive silica gel portions and the number of the light-blocking silica gel portions each are greater than or equal to 1, and the light-transmissive silica gel portions and the light-blocking silica gel portions are arbitrarily arranged for enclosing the cavity for accommodating the light panel and the at least one LED light bead. Preferably, the light-transmissive silica gel portion and the light-blocking silica gel portion are arranged on the light panel; and / or the light-transmissive silica gel portion and the light-blocking silica gel portion surround a back surface of the light panel on which no LED light beads are arranged; and / or a concave-convex structure is provided on a bottom surface of the light-blocking silica gel portion; and / or a transparent strip enables visualization of a cutting line on the light panel is arranged on the light-blocking silica gel portion. In a second aspect, the present utility model provides an LED light strip, including: an LED surface mounted extrusion structure as described above. Compared with the prior art, the present utility model has the following beneficial effects. In the LED surface mounted extrusion structure according to the present utility model, the light-transmissive silica gel portion and the light-blocking silica gel portion are configured as an integrated structure, such that the extrusion structure appears to have a better integrity and be simpler, can be implemented with both color and scattering, can be mounted and used in an extremely narrow and extremely short space (for example, with a minimum narrowness of 3 mm and a minimum shortness of 2.5 mm), emits more uniform light, improves the luminous efficiency, and has a smaller thickness than that in a conventional process. The LED light strip according to the present utility model adopts the LED surface mounted extrusion structure according to the present utility model, and thus also has the above advantages. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view of an LED surface mounted extrusion structure according to an embodiment of the present utility model; FIG. 2 is a perspective view of an LED surface mounted extrusion structure according to an embodiment of the present utility model from another perspective; FIG. 3 is a schematic structural diagram of an LED surface mounted extrusion structure according to another embodiment of the present utility model; FIG. 4 is a schematic structural diagram of an LED surface mounted extrusion structure according to still another embodiment of the present utility model; FIG. 5 is a schematic structural diagram of an LED surface mounted extrusion structure according to yet another embodiment of the present utility model; FIG. 6 is a schematic structural diagram of an LED surface mounted extrusion structure according to still yet another embodiment of the present utility model; FIG. 7 is a schematic structural diagram of an LED surface mounted extrusion structure according to a further embodiment of the present utility model; FIG. 8 is a schematic structural diagram of an LED surface mounted extrusion structure according to a still further embodiment of the present utility model; FIG. 9 is a schematic structural diagram of an LED surface mounted extrusion structure according to a yet further embodiment of the present utility model; FIG. 10 is a schematic structural diagram of an LED surface mounted extrusion structure according to a still yet further embodiment of the present utility model; FIG. 11 is a schematic structural diagram of an LED surface mounted extrusion structure according to even yet another embodiment of the present utility model; and FIG. 12 is a schematic structural diagram of an LED surface mounted extrusion structure according to more even yet another embodiment of the present utility model. List of reference signs: 1. LED light bead; 2. Light panel; 3. Light-blocking silica gel portion; 4. Light-transmissive silica gel portion; 5. Cavity; 6. Diffusion pattern; 7. Inner silica gel layer; 8. Outer silica gel layer; 9. Concave-convex structure; 10. Transparent strip. DETAILED DESCRIPTION OF EMBODIMENTS Specific embodiments of the present utility model are described in detail in this section. Preferred embodiments of the present utility model are illustrated in the accompanying drawings. The accompanying drawings serve to supplement the text descriptions of the specification with figures, providing a visual understanding of each technical feature and the overall technical solution of the present utility model, but cannot be construed as limiting the scope of protection of the present utility model. In the descriptions of the present utility model, it should be understood that orientation or position relationships indicated by terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientation or position relationships shown in the accompanying drawings, and these terms are merely for ease of description of the present utility model and simplify the description, and are not intended to indicate or imply that a device or element referred to must have a specific orientation and must be constructed and operated in a specific orientation, and thus cannot be construed as limiting the present utility model. In the descriptions of the present utility model, "several" means one or more, "a plurality of' means two or more, "greater than", "less than", "exceeding" and the like are construed as excluding the following number, and "above", "below", "within" and the like are construed as including the following number. The terms "first" and "second" in the descriptions are merely intended to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating a sequence relationship between the indicated technical features. In the descriptions of the present utility model, unless otherwise explicitly defined, the words such as "arrange", "mount" and "connect", 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 the present utility model with reference to specific contents of the technical solutions. Referring to FIGS. 1 to 3, a preferred embodiment of an LED surface mounted extrusion structure according to the present utility model includes: at least one LED light bead 1, wherein in the present utility model, the number of LED light beads 1 is not limited, and can be set according to actual needs; a light panel 2 for supplying power to the LED light bead 1 to light up the at least one LED light bead 1; a lightblocking silica gel portion 3 for blocking the propagation of light over at least an angle when the LED light bead 1 is lit up; and a light-transmissive silica gel portion 4 for scattering, over at least an angle, the light propagating to the outside when the LED light bead 1 is lit up, wherein the light-transmissive silica gel portion 4 is made of colored silica gel, wherein the light-blocking silica gel portion 3 and the light-transmissive silica gel portion 4 are integrally connected, and the light-blocking silica gel portion 3 and the light-transmissive silica gel portion 4 enclose a cavity 5 for accommodating the light panel 2 and the at least one LED light bead 1. In the LED surface mounted extrusion structure according to the present utility model, the light-transmissive silica gel portion 4 and the light-blocking silica gel portion are configured as an integrated structure, such that the extrusion structure appears to have a better integrity and be simpler, can be implemented with both color and scattering, can be mounted and used in an extremely narrow and extremely short space (for example, with a minimum narrowness of 3 mm and a minimum shortness of 2.5 mm), emits more uniform light, improves the luminous efficiency, and has a smaller thickness than that in a conventional process. In the present utility model, a manufacturing method in which the lightblocking silica gel portion 3 and the light-transmissive silica gel portion 4 are integrally connected is not limited. In an alternative embodiment, the light-blocking silica gel portion 3 and the light-transmissive silica gel portion 4 may be integrally connected by a process of extrusion molding of a silica gel material in a mold. In other embodiments, the light-blocking silica gel portion 3 and the light-transmissive silica gel portion 4 may be integrally connected by a multi-adhesive dripping process in a mold, or the light-blocking silica gel portion 3 and the light-transmissive silica gel portion 4 may be integrally connected by other suitable processes. The preferred embodiment of the LED surface mounted extrusion structure according to the present utility model may have the following additional technical features. Referring to FIGS. 4 to 8, in an alternative embodiment, an inner surface of the light-transmissive silica gel portion 4 close to the LED light bead 1 has a diffusion pattern 6, and the diffusion pattern 6 allows light to be scattered and propagate into the light-transmissive silica gel portion 4 when the LED light bead 1 is lit up. In this way, the light emitted by the LED light bead 1 can be fully scattered, the light transmitting through the light-transmissive silica gel portion 4 is more uniform, and the LED surface mounted extrusion structure according to the present utility model has a better light-emitting effect. Referring to FIGS. 3 and 9 to 12, in other embodiments, the light-transmissive silica gel portion 4 may be provided with no diffusion pattern 6. In other embodiments, the diffusion pattern 6 may be arranged on an outer surface of the light-transmissive silica gel portion 4 away from the LED light bead 1. In an alternative embodiment, an outer surface of the light-transmissive silica gel portion 4 away from the LED light bead 1 has a convex form to facilitate the scattering of the light propagating to the outside when the LED light bead 1 is lit up. In this way, the light emitted by the LED light bead 1 can be more evenly emitted from the light-transmissive silica gel portion 4, and the LED surface mounted extrusion structure according to the present utility model has a better light-emitting effect. Referring to FIG. 9, in other embodiments, the outer surface of the light-transmissive silica gel portion 4 away from the LED light bead 1 may be non-convex. In the present utility model, the form of the outer surface of the light-transmissive silica gel portion 4 away from the LED light bead 1 is not limited, and can be configured according to an actual situation. In an alternative embodiment, the convex form is cambered, such that the uniformity of the light emitted by the LED light bead 1 after the light is emitted from the light-transmissive silica gel portion 4 can be further improved, which further results in a better light-emitting effect of the LED surface mounted extrusion structure according to the present utility model. In other embodiments, the convex form may be flat, or the convex form may be irregular, or the convex form may have other suitable forms. In some application scenarios, the LED surface mounted extrusion structure according to the present utility model needs to be bent during mounting. Therefore, in an alternative embodiment, the light panel 2 is a flexible circuit board, such that the light panel 2 is flexible. When the LED surface mounted extrusion structure according to the present utility model needs to be bent during mounting, the light panel 2 can be bent smoothly without being damaged, such that the LED surface mounted extrusion structure according to the present utility model can be suitable for more application scenarios. In other embodiments, the light panel 2 may be a rigid circuit board. In an alternative embodiment, the light-blocking silica gel portion 3 is made of an opaque silica gel, and an inner surface of the light-blocking silica gel portion 3 close to the LED light bead 1 can reflect light. In this way, the light emitted by the LED light bead 1 can pass through the light-transmissive silica gel portion 4 more intensively, such that the utilization rate of the light emitted by the LED light bead 1 is increased, and the LED surface mounted extrusion structure according to the present utility model has a better light-emitting effect. In other embodiments, the light-blocking silica gel portion 3 may be made of light-transmissive silica gel. In other embodiments, part of the light-blocking silica gel portion 3 may be made of opaque silica gel, and the rest thereof may be made of light-transmissive silica gel. Referring to FIG. 7, the light-blocking silica gel portion 3 is arranged surrounding the light-transmissive silica gel portion 4, and the part of the light-blocking silica gel portion 3 that is on an outer surface of the light-transmissive silica gel portion 4 away from the LED light bead 1 is made of light-transmissive silica gel. In an alternative embodiment, colored silica gel comprises the following colors or one or more selected from a group consisting of the following colors: milk white, black, blue, green, orange, yellow, red and purple, to enable color matches with the environment in which the LED surface mounted extrusion structure is mounted. In this way, a user can choose colored silica gel with a suitable color according to actual needs, and thus the LED surface mounted extrusion structure according to the present utility model can adapt to more application scenarios. In the present utility model, the structure of the light-transmissive silica gel portion 4 is not limited, and can be configured according to actual needs. Referring to FIGS. 3, 4 and 8, in an alternative embodiment, the light-transmissive silica gel portion 4 comprises an inner silica gel layer 7 and an outer silica gel layer 8 surrounding the inner silica gel layer 7. With the above structure, when the outer silica gel layer 8 of the light-transmissive silica gel portion 4 is damaged, the inner silica gel layer 7 of the light-transmissive silica gel portion 4 can protect the LED light bead 1 and the light panel 2, thereby preventing substances, such as external water droplets and impurity particles, from coming into contact with the LED light bead 1 and the light panel 2, reducing damages to the LED light bead 1 and the light panel 2, and improving the reliability and stability of the LED surface mounted extrusion structure according to the present utility model. Referring to FIGS. 5 to 7 and 9 to 12, in other embodiments, the light-transmissive silica gel portion 4 may be of a single-layer silica gel structure. In an alternative embodiment, the number of light-transmissive silica gel portions 4 and the number of light-blocking silica gel portions 3 each are greater than or equal to 1, and the light-transmissive silica gel portions 4 and the lightblocking silica gel portions 3 are arbitrarily arranged for enclosing the cavity 5 for accommodating the light panel 2 and the at least one LED light bead 1. In this way, the user can select an appropriate number of light-transmissive silica gel portions 4 and an appropriate number of light-blocking silica gel portions 3 according to actual needs, so as to obtain an appropriate LED surface mounted extrusion structure. In an alternative embodiment, the light-transmissive silica gel portion 4 and the light-blocking silica gel portion 3 are arranged on the light panel 2. With the above structure, the overall structure of the LED surface mounted extrusion structure according to the present utility model is more stable. In other embodiments, it is possible for the light-transmissive silica gel portion 4 and the light-blocking silica gel portion 3 not to be arranged on the light panel 2. Referring to FIGS. 3 to 7, in an alternative embodiment, the light-transmissive silica gel portion 4 and the light-blocking silica gel portion 3 surround a back surface of the light panel 2 on which no LED light beads 1 are arranged. With the above structure, the LED light bead 1 and the light panel 2 can be protected more comprehensively, and external impacts on the LED light bead 1 and the light panel 2 can be reduced, thereby reducing damages to the LED light bead 1 and the light panel 2 and achieving higher safety and higher reliability. In other embodiments, the light-transmissive silica gel portion 4 and the light-blocking silica gel portion 3 may surround a part of the back surface of the light panel 2 on which no LED light beads 1 are arranged. Referring to FIGS. 8 to 12, it is possible for the light-transmissive silica gel portion 4 and the light-blocking silica gel portion 3 not to surround the back surface of the light panel 2 on which no LED light beads 1 are arranged. It may be understood that the LED surface mounted extrusion structure is less aesthetic due to a belt mark present on a bottom surface of the light-blocking silica gel portion 3 during the manufacturing of the LED surface mounted extrusion structure. Therefore, referring to FIGS. 1 to 3 and 5, in an alternative embodiment, a concave-convex structure 9 is provided on a bottom surface of the light-blocking silica gel portion 3. The provision of the concave-convex structure 9 on the one hand can allow the belt mark on the bottom surface of the light-blocking silica gel portion to be removed such that the LED surface mounted extrusion structure according to the present utility model is more aesthetic, and on the other hand, can save the material for manufacturing the light-blocking silica gel portion 3. Referring to FIGS. 4, 6 and 7, in other embodiments, it is possible to provide no concave-convex structure 9 on the bottom surface of the light-blocking silica gel portion 3, or another suitable form of structure may be provided on the bottom surface of the lightblocking silica gel portion 3 to remove the belt mark. Referring to FIGS. 1 to 7, in an alternative embodiment, a transparent strip 10 enabling visualization of a cutting line on the light panel 2 is arranged on the lightblocking silica gel portion 3. In this way, the user can clearly see the cutting line on the light panel 2, and thus the LED surface mounted extrusion structure according to the present utility model can be cut more accurately according to actual needs. Referring to FIGS. 8 to 12, in other embodiments, it is possible to provide no transparent strip 10 on the light-blocking silica gel portion 3, and another suitable structure or component may be arranged on the light-blocking silica gel portion 3 instead of the transparent strip 10. Those skilled in the art can freely combine and use the above additional technical features in combination with each other, provided that no conflict occurs. An embodiment of the present utility model further provides an LED light strip, including: an LED surface mounted extrusion structure as described above. The LED light strip according to the embodiment of the present utility model includes the above-mentioned LED surface mounted extrusion structure. Therefore, the light-transmissive silica gel portion 4 and the light-blocking silica gel portion are also configured as an integral structure, such that the LED light strip appears to have a better integrity and be simpler, can be implemented with both color and scattering, can be mounted and used in an extremely narrow and extremely short space (for example, with a minimum narrowness of 3 mm and a minimum shortness of 2.5 5 mm), emits more uniform light, improves the luminous efficiency, and has a smaller thickness than that in a conventional process. The above-mentioned implementations are only preferred implementations of the present utility model and cannot be intended to limit the scope of protection of the present utility model. Any non-substantive change and replacement made by 10 those skilled in the art on the basis of the present utility model shall fall within the scope of protection of the present utility model.

Claims

1. An LED surface mounted extrusion structure, characterized by comprising:at least one LED light bead;a light panel for supplying power to the LED light bead to light up the at least one LED light bead;a light-blocking silica gel portion for blocking propagation of light over at least an angle when the LED light bead is lit up; anda light-transmissive silica gel portion for scattering, over at least an angle, the light propagating to the outside when the LED light bead is lit up, wherein the light-transmissive silica gel portion is made of colored silica gel,wherein the light-blocking silica gel portion and the light-transmissive silica gel portion are integrally connected, and the light-blocking silica gel portion and the light-transmissive silica gel portion enclose a cavity for accommodating the light panel and the at least one LED light bead.

2. The LED surface mounted extrusion structure according to claim 1, characterized in that an inner surface of the light-transmissive silica gel portion close to the LED light bead has a diffusion pattern, the diffusion pattern allowing light to be scattered and propagate into the light-transmissive silica gel portion when the LED light bead is lit up.

3. The LED surface mounted extrusion structure according to claim 1, characterized in that an outer surface of the light-transmissive silica gel portion away from the LED light bead has a convex form to facilitate the scattering of the light propagating to the outside when the LED light bead is lit up.

4. The LED surface mounted extrusion structure according to claim 3, characterized in that the convex form is cambered.

5. The LED surface mounted extrusion structure according to any one of claims 1 to 4, characterized in that the light panel is a flexible circuit board; and / orthe light-blocking silica gel portion is made of opaque silica gel, and an inner surface of the light-blocking silica gel portion close to the LED light bead is capable of reflecting light.

6. The LED surface mounted extrusion structure according to claim 1, characterized in that the colored silica gel comprises the following colors or one or more selected from a group consisting of the following colors: milk white, black, blue, green, orange, yellow, red and purple, to enable color matches with the environment in which the LED surface mounted extrusion structure is mounted.

7. The LED surface mounted extrusion structure according to claim 1, characterized in that the light-transmissive silica gel portion comprises an inner silica gel layer and an outer silica gel layer surrounding the inner silica gel layer.

8. The LED surface mounted extrusion structure according to claim 1, characterized in that the number of the light-transmissive silica gel portions and the number of the light-blocking silica gel portions each are greater than or equal to 1, and the light-transmissive silica gel portions and the light-blocking silica gel portions are arbitrarily arranged for enclosing the cavity for accommodating the light panel and the at least one LED light bead.

9. The LED surface mounted extrusion structure according to claim 1, characterized in that the light-transmissive silica gel portion and the light-blocking silica gel portion are arranged on the light panel;and / or the light-transmissive silica gel portion and the light-blocking silica gel portion surround a back surface of the light panel on which no LED light beads are arranged;and / or a concave-convex structure is provided on a bottom surface of the lightblocking silica gel portion;and / or a transparent strip enables visualization of a cutting line on the light panel is arranged on the light-blocking silica gel portion.

10. An LED light strip, characterized by comprising an LED surface mounted extrusion structure according to any one of claims 1 to 9.

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