High-voltage drive-free DOB flexible lamp strip

Abstract

The utility model discloses a high-voltage drive-free DOB flexible lamp strip which comprises a pipe sleeve and plugs, a mounting groove is formed in the pipe sleeve, a flexible circuit board is arranged in the mounting groove, the number of the plugs is two, the two ends of the pipe sleeve are inserted into the plugs respectively, the surface of the flexible circuit board is electrically connected with a plurality of lamp beads, and a plurality of bridge rectifiers are electrically connected among the lamp beads. Fluorescent colloid is arranged in the pipe sleeve and located on the top of the flexible circuit board, the gap between the flexible circuit board and the pipe sleeve can be filled with the fluorescent colloid, the effect of fixing and supporting the flexible circuit board is achieved, when the pipe sleeve is bent to enable the flexible circuit board to be subjected to mechanical stress such as vibration or bending, the fluorescent colloid can reduce displacement and deformation of the flexible circuit board, and the service life of the flexible circuit board is prolonged. The stability of the flexible circuit board and the relative positions of the lamp beads and the bridge rectifier on the flexible circuit board in the pipe sleeve is kept, so that the stability of circuit connection and the normal work of a light source are ensured, and the problem that the direction of the flexible circuit board is deviated or deformed after the pipe sleeve is bent is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible light strips, and particularly relates to a high-voltage driverless DOB flexible light strip. Background Technique

[0002] The DOB flexible light strip is a flexible lighting product with a driving circuit directly integrated on the light strip circuit board. When alternating current is input, the integrated driving circuit directly rectifies, filters, steps down (or steps up) the alternating current, and converts it into appropriate direct current to drive the LED lamp beads in the light strip to emit light. Most of the light-emitting surfaces of the existing DOB flexible light strips are composed of at least two surfaces, one is the main light path for light emission, and the other is the secondary light path for light emission. By superimposing the main light path and the secondary light path for irradiation, the irradiation effect can be improved. However, since the existing flexible light strips are often bent during use, and during the bending process, the circuits on the circuit board may be subjected to tensile or compressive stress, resulting in the direction of the circuit board after bending being offset or deformed, thus affecting the irradiation effect of the flexible light strip. Content of the Utility Model

[0003] The purpose of the utility model is to provide a high-voltage driverless DOB flexible light strip to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: A high-voltage driverless DOB flexible light strip, comprising:

[0005] A tube sleeve, wherein an installation groove is provided in the tube sleeve and a flexible circuit board is provided in the installation groove;

[0006] Plugs, there are two groups of plugs, and both ends of the tube sleeve are respectively inserted into the plugs. A plurality of lamp beads are electrically connected to the surface of the flexible circuit board, and a plurality of bridge rectifiers for converting alternating current into direct current are electrically connected between the plurality of lamp beads. A fluorescent colloid is provided above the flexible circuit board in the tube sleeve to fix and support the gap between the flexible circuit board and the tube sleeve.

[0007] Preferably, one end of the tube sleeve is provided with a power cord, and one end of the power cord penetrates through the plug and is electrically connected to the flexible circuit board.

[0008] Preferably, both the tube sleeve and the plugs are made of transparent silica gel.

[0009] Preferably, the fluorescent colloid is made of epoxy resin.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The flexible printed circuit board is powered on by connecting the power cord to a power source. Several bridge rectifiers on the surface of the flexible printed circuit board can convert the input AC voltage into an output DC voltage, enabling the lamp beads to emit light. The flexible printed circuit board unit is 10 cm long, and there are 3 - 4 bridge rectifiers on the flexible printed circuit board. Moreover, the bridge rectifiers are small in size and are soldered in the middle of the lamp beads, resulting in balanced brightness and no dark areas.

[0012] The fluorescent colloid inside the tube sleeve and located on top of the flexible printed circuit board can fill the gap between the flexible printed circuit board and the tube sleeve, playing a role in fixing and supporting the flexible printed circuit board. When the tube sleeve is bent, causing the flexible printed circuit board to be subjected to mechanical stresses such as vibration or bending, the fluorescent colloid can reduce the displacement and deformation of the flexible printed circuit board, maintaining the stability of the relative positions of the flexible printed circuit board, the lamp beads, and the bridge rectifiers on the flexible printed circuit board inside the tube sleeve, thereby ensuring the stability of the circuit connection and the normal operation of the light source, and avoiding the problem of the flexible printed circuit board shifting or deforming in direction after the tube sleeve is bent. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a side sectional view of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the flexible printed circuit board of the present utility model.

[0016] In the figure: 1, tube sleeve; 2, installation groove; 3, flexible printed circuit board; 4, plug; 5, lamp bead; 6, bridge rectifier; 7, fluorescent colloid; 8, power cord. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] The present utility model provides a high - voltage driver - free DOB flexible light strip as shown in Figures 1 - 3 and includes:

[0019] A tube sleeve 1, wherein an installation groove 2 is provided inside the tube sleeve 1 and a flexible printed circuit board 3 is provided inside the installation groove 2;

[0020] Plug 4, there are two sets of plugs 4, and both ends of the sleeve 1 are inserted into the plugs 4 respectively. A number of lamp beads 5 are electrically connected to the surface of the flexible circuit board 3, and a number of bridge rectifiers 6 for converting alternating current into direct current are electrically connected between the lamp beads 5. Inside the sleeve 1 and on top of the flexible circuit board 3, there is a fluorescent colloid 7 to fix and support the gap between the flexible circuit board 3 and the sleeve 1.

[0021] One end of the sleeve 1 is provided with a power cord 8, and one end of the power cord 8 penetrates through the plug 4 and is electrically connected to the flexible circuit board 3.

[0022] Both the sleeve 1 and the plug 4 are made of transparent silicone material. The transparent silicone material has good light transmittance, which can allow the light emitted by the light strip to efficiently pass through the sleeve 1 and the plug 4.

[0023] The fluorescent colloid 7 is made of epoxy resin material. Epoxy resin has good adhesiveness and sealing performance, which can well encapsulate components such as LED lamp beads 5 inside the flexible light strip, and the fluorescent colloid 7 can also make the light pass through more evenly, ensuring the uniform light emission of the flexible light strip.

[0024] For this high-voltage driver-free DOB flexible light strip, by connecting the power cord 8 to the power supply, the flexible circuit board 3 is powered on. A number of bridge rectifiers 6 on the surface of the flexible circuit board 3 can convert the input alternating voltage into the output direct current voltage, so that the lamp beads 5 emit light. The unit of the flexible circuit board 3 is 10 cm, there are 3 - 4 bridge rectifiers 6 on the flexible circuit board 3, and the bridge rectifiers 6 are small in size and are welded in the middle of the lamp beads 5, with balanced brightness and no dark areas;

[0025] The fluorescent colloid 7 inside the sleeve 1 and on top of the flexible circuit board 3 can fill the gap between the flexible circuit board 3 and the sleeve 1, playing a role in fixing and supporting the flexible circuit board 3. When the sleeve 1 is bent and the flexible circuit board 3 is subjected to mechanical stresses such as vibration or bending, the fluorescent colloid 7 can reduce the displacement and deformation of the flexible circuit board 3, maintaining the stable relative positions of the flexible circuit board 3 and the lamp beads 5 and bridge rectifiers 6 on the flexible circuit board 3 inside the sleeve 1, thus ensuring the stability of the circuit connection and the normal operation of the light source, and avoiding the problem that the direction of the flexible circuit board 3 will shift or deform after the sleeve 1 is bent.

[0026] Finally, it should be noted that: the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-voltage driverless DOB flexible light strip, characterized in that, Including: A sleeve (1), an installation groove (2) is provided inside the sleeve (1), and a flexible printed circuit board (3) is provided inside the installation groove (2); Plugs (4), there are two groups of plugs (4), and both ends of the sleeve (1) are respectively inserted into the plugs (4). A plurality of lamp beads (5) are electrically connected to the surface of the flexible printed circuit board (3), and a plurality of bridge rectifiers (6) for converting alternating current into direct current are electrically connected between the plurality of lamp beads (5). A fluorescent colloid (7) is provided inside the sleeve (1) and on top of the flexible printed circuit board (3) to fix and support the gap between the flexible printed circuit board (3) and the sleeve (1).

2. The high-voltage driverless DOB flexible light strip according to claim 1, wherein: One end of the sleeve (1) is provided with a power cord (8), and one end of the power cord (8) penetrates through the plug (4) and is electrically connected to the flexible printed circuit board (3).

3. A high-voltage driverless DOB flexible light strip according to claim 1, characterized in that: Both the sleeve (1) and the plug (4) are made of transparent silica gel material.

4. A high-voltage driverless DOB flexible light strip according to claim 1, characterized in that: The fluorescent colloid (7) is made of epoxy resin material.

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