Flexible printed circuit (FPC) board capable of being bent in multiple directions and light-emitting diode (LED) flexible light bar

Abstract

The utility model discloses a flexible printed circuit (FPC) board and light-emitting diode (LED) flexible light bar capable of bending in multiple directions, the FPC board capable of bending in multiple directions comprises an FPC board body, the FPC board body comprises an FPC bottom board and two rows of side boards formed by bending the two sides of the FPC bottom board upwards, a row of LED lamp beads are arranged on the FPC bottom board or / and the side boards, the two rows of side boards are arranged in a left-right staggered mode one by one, and the two rows of LED lamp beads are arranged on the FPC bottom board or / and the side boards. One side of each side plate is provided with a penetrating gap penetrating through the FPC bottom plate. According to the technical scheme, the FPC board body is arranged to be of the structure of the FPC bottom plate and the two rows of side plates, the two rows of side plates are controlled to be arranged in the left-right staggered mode one by one, and the penetrating notch penetrating through the FPC bottom plate is formed in one side of each side plate, so that the FPC board body can be bent up and down in the direction perpendicular to the FPC bottom plate and can also be bent in the direction perpendicular to the side plates; the multi-direction bending function of the FPC board body is achieved, when the FPC board body serves as a light source to be applied to the LED light bar, multi-direction bending of the LED light bar can be achieved, and therefore the installation and use requirements of different bending scenes are met, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light strips, in particular to an FPC board that can be bent in multiple directions, and also relates to an LED flexible light strip. Background Art

[0002] In the LED lighting industry, as a linear lighting source, LED light strips are increasingly widely used. To achieve uniform light emission and protection requirements of the light strips, the conventional method is: arranging LED lamp beads on a flexible circuit board to form a flexible light strip light source, and then through a potting process, an extrusion or injection molding process to add a light homogenizing or transparent protective shell to the flexible light strip. The defect of this solution is that: since the flexible circuit board can only be bent up and down along the direction perpendicular to its light-emitting surface, if it is bent along the direction perpendicular to the light-emitting direction, the flexible circuit board will break, resulting in damage to the LED light strip. Due to the single bending direction of the existing flexible circuit board, the installation and application of the LED light strip are restricted. Summary of the Utility Model

[0003] In order to overcome the existing technical defects, the purpose of the utility model is to provide an FPC board that can be bent in multiple directions and an LED flexible light strip to solve the above technical problems.

[0004] The technical solutions adopted by the utility model to solve the technical problems are as follows:

[0005] According to one aspect of the utility model, an FPC board that can be bent in multiple directions is designed, including: an FPC board body, the FPC board body includes an FPC bottom plate and two columns of side plates bent upward from both sides of the FPC bottom plate, a row of LED lamp beads is arranged on the FPC bottom plate or / and the side plates, the two columns of side plates are arranged staggeredly left and right one by one, and a through notch penetrating the FPC bottom plate is arranged on one side of each side plate.

[0006] By adopting the above technical solutions, by setting the FPC board body into the structure of an FPC bottom plate and two columns of side plates, controlling the two columns of side plates to be arranged staggeredly left and right one by one, and arranging a through notch penetrating the FPC bottom plate on one side of each side plate, the FPC board body can not only be bent up and down along the direction perpendicular to the FPC bottom plate, but also be bent along the direction perpendicular to the side plates, thus realizing the function of multi-directional bending of the FPC board body, solving the technical problem of the single bending direction of the existing flexible circuit board. When the FPC board body is applied as a light source to an LED light strip, the multi-directional bending of the LED light strip can be realized, so as to meet the installation and use requirements of different bending scenarios and improve the practicability.

[0007] In order to better solve the above technical defects, the utility model also has a better technical solution:

[0008] In some embodiments, the front view structure of the FPC board body is U-shaped, or ∪-shaped, or ︺-shaped.

[0009] In some embodiments, the through notch penetrates the lower part of the side plate.

[0010] In some embodiments, multiple side plates in each column are arranged at equal intervals.

[0011] According to another aspect of the present invention, an LED flexible light strip based on the above-mentioned arbitrarily bendable FPC board is designed, including: a light-transmitting silica gel strip and an FPC board body, and the FPC board body is connected to the silica gel strip.

[0012] In some embodiments, it further includes a flexible outer shell, and the silica gel strip is arranged inside the outer shell.

[0013] In some embodiments, a placement groove is arranged inside the silica gel strip, and the LED lamp beads are located in the placement groove.

[0014] In some embodiments, the outer shell is a non-light-transmitting structure, and its front view structure is U-shaped, or ∪-shaped, or ︺-shaped.

[0015] In some embodiments, the upper end inside the silica gel strip is evenly distributed with a diffusing agent to form a diffusion layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a multi-directionally bendable FPC board provided by an embodiment of the present invention;

[0017] Figure 2 It is a front view structural diagram of a multi-directionally bendable FPC board;

[0018] Figure 3 It is a side view structural diagram of a multi-directionally bendable FPC board;

[0019] Figure 4 It is a schematic structural diagram of a multi-directionally bendable FPC board provided by an embodiment of the present invention;

[0020] Figure 5 For Figure 4 front view structural diagram;

[0021] Figure 6 It is a schematic structure of the silica gel strip and the FPC board body Figure 1 ;

[0022] Figure 7 It is a schematic structure of the silica gel strip and the FPC board body Figure 2 ;

[0023] Figure 8 is Figure 7 the front view structural schematic diagram of

[0024] Reference numerals:

[0025] 1. FPC board body; 11. FPC bottom board; 12. Side plate; 13. LED lamp beads; 14. Through notch; 2. Silicone strip; 21. Diffusion layer; 22. Insertion groove; 3. Outer shell. Specific embodiments

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0027] In the description of the present utility model, it should be understood that for orientation descriptions, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation of the present utility model.

[0028] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", "fixedly connected", 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 in combination with the specific content of the technical solution.

[0029] Embodiment 1

[0030] Refer to Figures 1 to 3As shown in the figure, a flexible printed circuit (FPC) board that can be bent in multiple directions provided by the present utility model includes: an FPC board body 1, the FPC board body 1 includes an FPC bottom board 11 and two columns of side boards 12 bent upward from both sides of the FPC bottom board 11. The front view structure of the FPC board body 1 is in a U shape, or a C shape, or a > shape, etc. A row of LED beads 13 is provided on the FPC bottom board 11, or a row of LED beads 13 is provided on one side board 12, or a row of LED beads 13 is provided on the FPC bottom board 11 and the side boards 12 respectively. When LED beads 13 are provided on the side boards 12, the LED beads 13 on the two columns of side boards 12 are all provided on the right side of the side board 12, or all provided on the left side of the side board 12, or the LED beads 13 on one column of side boards 12 are provided on the right side, and the LED beads 13 on the other column of side boards 12 are provided on the left side. In this embodiment, it is preferably that a row of LED beads 13 is provided on the FPC bottom board 11 at intervals; multiple side boards 12 in each row are longitudinally equidistantly spaced, the two columns of side boards 12 are staggered left and right one by one, and a through notch 14 penetrating the FPC bottom board 11 is provided on one side of each side board 12, and the through notch 14 penetrates the lower part of the side board 12.

[0031] Embodiment 2

[0032] Reference Figures 1 to 6 As shown in the figure, an LED flexible light strip provided by the present utility model includes: a light-transmitting silica gel strip 2, the FPC board body 1 in Embodiment 1, and a flexible structure housing 3.

[0033] The material of the housing 3 is any one of flexible and light-impermeable plastics such as ABS, PC, PS, PE, PET, etc. The front view structure of the housing 3 is in a U shape, or a C shape, or a > shape. The FPC board body 1 is connected to the silica gel strip 2, and the silica gel strip 2 is arranged inside the housing 3. Among them, the FPC board body 1 is connected to the silica gel strip 2 by a clamping method, or the FPC board body 1 is connected to the silica gel strip 2 by an adhesive method, or the FPC board body 1 is connected to the silica gel strip 2 by an extrusion or injection molding process. A placement groove 22 is arranged inside the silica gel strip 2, and the LED beads 13 are located in the placement groove 22. The placement groove 22 can penetrate the silica gel strip 2 or not, which is set according to needs. As Figures 4 - 6 As shown in the figure, in the state where the FPC board body 1 is connected to the silica gel strip 2 by an extrusion or injection molding process, the silica gel strip 2 wraps both ends of the FPC board body 1. As Figure 7 、 8 As shown in the figure, in the state where the FPC board body 1 is connected to the silica gel strip 2 by an adhesive method, the silica gel strip 2 is located inside the FPC board body 1.

[0034] Diffusing agents evenly distributed inside the upper end of the silica gel strip 2 form a diffusing layer 21, and the diffusing layer 21 can make the light have a better diffusing effect.

[0035] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the inventive concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A FPC board that can be bent in multiple directions, characterized in that: Comprising: The FPC board body, the FPC board body includes an FPC bottom plate and two columns of side plates formed by bending upwards from both sides of the FPC bottom plate. A row of LED lamp beads is arranged on the FPC bottom plate or / and the side plates. The two columns of side plates are arranged staggeredly left and right one by one. A through notch penetrating the FPC bottom plate is arranged on one side of each side plate.

2. The FPC board that can be bent in multiple directions according to claim 1, characterized in that: The front view structure of the FPC board body is U-shaped or C-shaped or ∟-shaped.

3. The FPC board capable of being bent in multiple directions according to claim 1 or 2, characterized in that: The through notch penetrates the lower part of the side plate.

4. The FPC board capable of being bent in multiple directions according to claim 1 or 2, characterized in that: The multiple side plates in each column are arranged at equal intervals.

5. An LED flexible light strip based on any of the FPC boards that can be bent in multiple directions according to any of claims 1 to 4, characterized in that: Comprising: A light-transmitting silica gel strip and an FPC board body, the FPC board body is connected to the silica gel strip.

6. The LED flexible light strip according to claim 5, characterized in that: It further includes a flexible structure housing, and the silica gel strip is arranged in the housing.

7. The LED flexible light strip according to claim 5 or 6, characterized in that: An insertion groove is arranged in the silica gel strip, and the LED lamp beads are located in the insertion groove.

8. The LED flexible light strip according to claim 6, characterized in that: The housing is a non-light-transmitting structure, and its front view structure is U-shaped or C-shaped or ∟-shaped.

9. The LED flexible light strip according to claim 5, characterized in that: The diffusing agent evenly distributed inside the upper end of the silica gel strip forms a diffusion layer.

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