SOB light bar capable of replacing flexible COB light bar

Abstract

The utility model provides an SOB light bar capable of replacing a flexible COB light bar, which comprises a surface layer extrusion diffusion silica gel outer cover, at least two independent LED light beads and an FPCB (Flexible Printed Circuit Board), the LED light beads are pasted on the FPCB, the surface layer extrusion diffusion silica gel outer cover covers and is bonded on the FPCB and the LED light beads, the width of the SOB light bar is W, the height of the SOB light bar is H, the width of the LED light beads is W1, and the width of the FPCB is W2. The center distance between every two adjacent LED lamp beads is W2, W is larger than or equal to 3H, and W1 is larger than or equal to 2W2. The SOB light bar has the advantages that the lighting effect of the SOB light bar is improved, and the SOB light bar has the advantages of being even in lighting, large in lighting view angle and free of glare, inherits the advantages of a COB light bar and can replace a flexible COB light bar.

Description

Technical Field

[0001] The utility model relates to a lighting device, in particular to an SOB light bar capable of replacing a flexible COB light bar. Background Art

[0002] Currently, existing flexible COB light strips directly encapsulate LED chips on FPCB boards, then drip colloid onto the FPCB surface to cover the LED chips. Products made using this process generally have the advantages of uniform light emission, wide viewing angle, and no glare, but also have the disadvantage of low light efficiency, which is not conducive to energy saving and environmental protection. Summary of the Invention

[0003] In order to solve the problems in the prior art, the utility model provides an SOB light bar that can replace the flexible COB light bar.

[0004] The utility model provides an SOB light strip that can replace a flexible COB light strip, comprising a surface extruded diffused silicone outer cover, at least two independent LED lamp beads and an FPCB board, wherein the LED lamp bead patches are mounted on the FPCB board, and the surface extruded diffused silicone outer cover covers and adheres to the FPCB board and the LED lamp beads. The width of the SOB light strip is W, and the height is H. The width of the LED lamp beads is W1, and the center-to-center distance between two adjacent LED lamp beads is W2. Therefore, W ≥ 3H and W1 ≥ 2W2.

[0005] As a further improvement of the present invention, the FPCB board includes a surface polyimide layer, an adhesive layer, a copper foil layer etched with a circuit diagram, an adhesive layer, an inner polyimide layer, an adhesive layer, a bottom copper foil, an adhesive layer and a bottom polyimide layer stacked in sequence from top to bottom.

[0006] As a further improvement of the present invention, a current-limiting chip resistor is provided on the FPCB board.

[0007] The beneficial effects of the present invention are: through the above scheme, the lighting effect of the SOB light strip is improved, and it has the advantages of uniform lighting, large lighting viewing angle and no glare. It inherits the advantages of the COB light strip and can replace the flexible COB light strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other solutions can be obtained based on these drawings without paying any creative work.

[0009] Figure 1This is an exploded schematic diagram of an SOB light bar that can replace a flexible COB light bar in the present invention.

[0010] Figure 2 This is a partial enlarged view of an SOB light strip that can replace the flexible COB light strip in the utility model.

[0011] Figure 3 The utility model discloses an arrangement diagram of LED lamp beads that can replace flexible COB light strips.

[0012] Figure 4 The utility model is a cross-sectional view of a light bar that can replace a flexible COB light bar.

[0013] Figure 5 A schematic diagram of the utility model that can replace the flexible COB light strip.

[0014] Figure 6 A schematic diagram of the utility model that can replace the flexible COB light strip. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0019] like Figures 1 to 6 As shown, a SOB light strip that can replace the flexible COB light strip includes a surface extruded diffused silicone cover 1, at least two independent LED lamp beads 3 and an FPCB board. The LED lamp beads 3 are patched on the FPCB board, and the surface extruded diffused silicone cover 1 covers and adheres to the FPCB board and the LED lamp beads 3. The surface extruded diffused silicone cover 1 forms a whole with the FPCB board and the LED lamp beads 3.

[0020] The SOB light strip has a length of L, a width of W, and a height of H. The width of the LED beads 3 is W1, and the center-to-center distance between two adjacent LED beads 3 is W2. Therefore, W ≥ 3H, and W1 ≥ 2W2. This arrangement of LED beads 3 achieves uniform light emission, a wide viewing angle, and no glare.

[0021] The FPCB board includes a surface polyimide layer 4, an adhesive layer 5, a copper foil layer 6 etched with a circuit pattern, an adhesive layer 7, an inner polyimide layer 8, an adhesive layer 9, a bottom copper foil 10, an adhesive layer 11 and a bottom polyimide layer 12 stacked in sequence from top to bottom.

[0022] The FPCB board is provided with a chip resistor 2 for limiting current.

[0023] SOB light strips are LED light beads packaged in a surface-mount manner on a flexible printed circuit board (FPC) or a rigid printed circuit board (PCB). They generally have the characteristics of high brightness, high color rendering index, energy saving and environmental protection, and easy installation and maintenance.

[0024] LED lamp beads 3 are composed of the following materials:

[0025] a. Substrate: The substrate is the basic part of the lamp bead, usually made of copper material, serving as the base of the semiconductor layer.

[0026] b. Semiconductor layer: The semiconductor layer is the core of the lamp bead and is composed of LED chips. LED chips are usually composed of compounds composed of elements such as gallium, arsenic, and phosphorus. These compounds can emit different colors of light.

[0027] c. Contact layer: The contact layer is used to connect the LED chip to the metal electrode layer, which is used for electrical conduction.

[0028] d. Metal electrode layer: The metal electrode layer is made of gold metal material and is used for conducting electricity and connecting to external circuits.

[0029] e. Package: The package is made of plastic and is used to protect the internal structure of the lamp bead and play the role of optical modulation.

[0030] This utility model provides an SOB light strip that can replace flexible COB light strips. The high luminous efficiency of the LED lamp beads is due to its simple structure and direct light emission method. Each LED chip is individually packaged, allowing light to be emitted directly, reducing light loss and scattering. While COB chips improve brightness through high-density packaging, the integration of multiple chips results in more light reflection and scattering on the substrate, resulting in relatively low luminous efficiency. Therefore, the extrusion molding of SOB light strips through this process improves the efficiency of the light strip, improves production efficiency, and reduces production costs.

[0031] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A SOB light bar that can replace the flexible COB light bar, characterized by: It includes a surface extruded diffused silicone cover, at least two independent LED lamp beads and an FPCB board. The LED lamp bead patches are on the FPCB board, and the surface extruded diffused silicone cover covers and adheres to the FPCB board and the LED lamp beads. The width of the SOB light strip is W, and the height is H. The width of the LED lamp beads is W1, and the center distance between two adjacent LED lamp beads is W2. Then W≥3H and W1≥2W2.

2. The SOB light strip capable of replacing the flexible COB light strip according to claim 1, characterized in that: The FPCB board includes a surface polyimide layer, an adhesive layer, a copper foil layer etched with a circuit pattern, an adhesive layer, an inner polyimide layer, an adhesive layer, a bottom copper foil, an adhesive layer and a bottom polyimide layer stacked in sequence from top to bottom.

3. The SOB light strip capable of replacing the flexible COB light strip according to claim 1, characterized in that: The FPCB board is provided with a chip resistor for limiting current.

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