Three-wire parallel maintenance-free constant-current high-voltage advertising light bar

Abstract

The utility model belongs to the technical field of advertising light bars, and particularly relates to a three-wire parallel maintenance-free constant-current high-voltage advertising light bar which comprises a section bar frame, a light-emitting component comprises a PCB (printed circuit board) connected with the section bar frame, a plurality of groups of LED lamp beads are connected onto the PCB, and the lamp beads are connected in a two-string and multi-parallel or full-parallel mode. The driving component comprises a driver installed on the outer side of the profile frame or in the middle of the light bars and two sets of auxiliary wire rods connected with the PCB, the driver is connected with a main wire rod, through a three-wire parallel connection structure, the light bars can be charged mutually, and when a single light bar is damaged, the light bars can be replaced conveniently. The drivers of the other light bars can supply power to the abnormal light bar through the two groups of additional auxiliary wires, so that the abnormal light bar can still be normally lightened, and the purposes of no maintenance and no maintenance are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of advertising light strips, in particular to a three-wire parallel maintenance-free constant current high-voltage advertising light strip. Background Art

[0002] Existing DOB high-voltage rigid light strips are all driven by non-isolated constant current (all high-voltage components are attached to the PCB board), with a full series solution. As a result, if a single light strip has any of the abnormalities (power driver failure, electronic component damage, PCB board breakage, wire soldering failure, LED damage), the entire light strip will not light up. Broken boards will cause abnormal heating of the light strip, which brings many inconveniences to subsequent maintenance. Therefore, a 3-wire parallel maintenance-free constant current high-voltage advertising light strip is proposed. The 3-wire parallel structure can make the light strips replenish each other's power. When a single light strip is damaged, the drivers of other light strips will power the abnormal light strip through the additional 2 sets of auxiliary wires, so that the abnormal light strip can still light up normally, achieving the purpose of maintenance-free. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] Therefore, the purpose of the present invention is to provide a 3-wire parallel maintenance-free constant current high-voltage advertising light strip. The 3-wire parallel structure can make the light strips mutually replenish power. When a single light strip is damaged, the drivers of the other light strips will power the abnormal light strip through the additional 2 sets of auxiliary wires, so that the abnormal light strip can still be lit normally, achieving the purpose of maintenance-free.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A 3-wire parallel maintenance-free constant current high-voltage advertising light bar, comprising:

[0007] As a profile frame connecting the base frame;

[0008] The light-emitting component is connected to the profile frame, including a PCB board connected to the profile frame, and multiple groups of LED lamp beads are connected on the PCB board. The LED lamp beads are connected in a 2-string multi-parallel or full parallel manner;

[0009] The driving component is placed on the profile frame. The driving component includes a driver installed on the outside of the profile frame or in the middle of the light bar, and two sets of auxiliary wires connected to the PCB board. The main wire is connected to the driver.

[0010] As a preferred solution of the 3-wire parallel maintenance-free constant current high-voltage advertising light strip described in the utility model, wherein: multiple groups of LED lamp beads are arranged linearly and equidistantly along the outer side of the PCB board, and any two adjacent LED lamp beads are connected in parallel.

[0011] As a preferred solution of the 3-wire parallel maintenance-free constant current high-voltage advertising light strip described in the utility model, wherein: multiple groups of lenses are connected to the outside of the PCB board, the lenses are arranged in a one-to-one correspondence with the LED lamp beads, and sealant is provided at the connection between the lenses and the PCB board.

[0012] As a preferred solution of the 3-wire parallel maintenance-free constant current high-voltage advertising light strip described in the utility model, wherein: the main wire and the two groups of auxiliary wires are connected in parallel to form a three-wire parallel connection structure, and the two groups of auxiliary wires connect the light strips to each other and conduct.

[0013] As a preferred solution for the 3-wire parallel maintenance-free constant current high-voltage advertising light strip described in the utility model, wherein: the inner side of the profile frame is linearly and equidistantly provided with multiple groups of positioning grooves, and the bottom of the PCB board is provided with positioning columns that are snap-fitted with the positioning grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The three-wire parallel structure allows the light strips to supplement each other's power. When a single light strip is damaged, the drivers of the other light strips will power the abnormal light strip through the additional two sets of auxiliary wires, so that the abnormal light strip can still light up normally, achieving the purpose of maintenance-free.

[0016] 2. A single light strip adopts a full parallel or series-parallel combination. If a single lamp bead dies, it will not affect the normal use of other lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the PCB board and the profile frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of an example of use of the utility model.

[0022] In the figure: 100 profile frame, 110 positioning groove, 200 light-emitting component, 210 PCB board, 211 positioning column, 220 LED lamp beads, 221 lens, 300 driving component, 310 driver, 311 main wire, 320 auxiliary wire. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] The utility model provides a 3-wire parallel maintenance-free constant current high-voltage advertising light bar, please refer to Figure 1-4 , including a profile frame 100, a light-emitting component 200 and a driving component 300;

[0028] Please continue reading Figure 1-4 , as a profile frame 100 connected to the base frame, the inner side of the profile frame 100 is linearly and equidistantly provided with multiple groups of positioning grooves 110;

[0029] Please continue reading Figure 1-4The light-emitting component 200 is connected to the profile frame 100, including a PCB board 210 connected to the profile frame 100. A positioning column 211 is provided at the bottom of the PCB board 210 and is fitted with the positioning groove 110. The positioning column 211 is fitted with the positioning groove 110, which can play an auxiliary fixing role during the connection process and facilitate subsequent glue sealing. A plurality of groups of LED lamp beads 220 are connected to the PCB board 210. The lamp beads 220 are connected in a 2-string multi-parallel or full parallel manner, which can ensure that if a single LED lamp bead 220 dies, it will not affect the normal use of other LED lamp beads 220.

[0030] Multiple groups of LED lamp beads 220 are arranged linearly and equidistantly along the outside of the PCB board 210, and two adjacent LED lamp beads 220 are connected in parallel. Multiple groups of lenses 221 are connected to the outside of the PCB board 210. The lenses 221 are arranged in a one-to-one correspondence with the LED lamp beads 220, and a sealant (not marked in the figure) is provided at the connection between the lenses 221 and the PCB board 210;

[0031] Please continue reading Figure 1 、 Figure 2 and Figure 4 The driving component 300 is placed on the profile frame 100 and includes a driver 310 connected to the outside of the profile frame 100. The driver 310 outputs a constant current from a step-down LED constant current driver chip, and two groups of auxiliary wires 320 connected to the PCB board 210. The driver 310 is connected to a main wire 311. The main wire 311 and the two groups of auxiliary wires 320 are connected in parallel to form a three-wire parallel connection structure, and the two groups of auxiliary wires 320 connect the light bars to each other;

[0032] A 3-wire parallel solution is used; in addition to the main wire 311, two additional sets of auxiliary wires 320 are added to connect the light strips to each other. The 3-wire parallel connection allows the light strips to replenish power. When a single light strip has a broken power driver, damaged electronic components, broken PCB board, cold solder joint or LED damage, the drivers 310 of other light strips will power the abnormal light strip through the additional two sets of auxiliary wires 320, so that the abnormal light strip can still light up normally, achieving the purpose of maintenance-free.

[0033] Example:

[0034] 1. Driver 310 is on the left or right side of the light bar, rainproof (add profile frame and seal with sealant), refer to Figure 4 ;

[0035] 2. Driver 310 is on the left or right side of the light bar, not rainproof (no profile frame), refer to Figure 4 ;

[0036] 3. The driver 310 is placed anywhere in the middle of the light bar, rainproof (additional profile frame and seal with sealant), see Figure 4 ;

[0037] 4. The driver 310 is placed at any position in the middle of the light bar, not rainproof (additional profile frame), see Figure 4 ;

[0038] Working principle: When the utility model is in use, the driver 310 works, and is interconnected and conducted through the PCB board 210 and the main wire 211 with the two groups of auxiliary wires 320, and reaches the LED lamp beads 220 as a current carrier. The LED lamp beads 220 emit light, and the light is refracted through the lens 221 to reach the external light box to form a luminous screen and other identification lighting products. The three-wire parallel connection can make the light strips replenish each other's power. When a single light strip is damaged, the drivers 310 of the other light strips will power the abnormal light strip through the additional two groups of auxiliary wires 320, so that the abnormal light strip can still be lit normally, achieving the purpose of maintenance-free.

[0039] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A 3-wire parallel maintenance-free constant current high-voltage advertising light bar, characterized in that: include: A profile frame (100) serving as a connection base frame; The light-emitting component (200) is connected to the profile frame (100), and includes a PCB board (210) connected to the profile frame (100). A plurality of LED lamp beads (220) are connected to the PCB board (210). The LED lamp beads (220) are connected in a two-series, multiple-parallel or full-parallel manner. The driving component (300) is placed on the left side, right side, or any position in the middle of the light bar of the profile frame (100), and includes a driver (310) installed on the outside of the profile frame (100) and two groups of auxiliary wires (320) connected to the PCB board (210). The driver (310) is connected to the main wire (311).

2. The 3-wire parallel maintenance-free constant current high-voltage advertising light bar according to claim 1, characterized in that: A plurality of groups of LED lamp beads (220) are arranged linearly and equidistantly along the outer side of the PCB board (210), and any two adjacent LED lamp beads (220) are connected in parallel.

3. A 3-wire parallel maintenance-free constant current high-voltage advertising light bar according to claim 2, characterized in that: The outer side of the PCB board (210) is connected to a plurality of groups of lenses (221), the lenses (221) and the LED lamp beads (220) are arranged in a one-to-one correspondence, and sealing glue is provided at the connection between the lenses (221) and the PCB board (210).

4. The three-wire parallel maintenance-free constant current high-voltage advertising light bar according to claim 3, characterized in that: The main wire (311) and the two groups of auxiliary wires (320) are connected in parallel to form a three-wire parallel connection structure, and the two groups of auxiliary wires (320) connect the light bars to each other and conduct the light bars.

5. The 3-wire parallel maintenance-free constant current high-voltage advertising light bar according to claim 4, characterized in that: The inner side of the profile frame (100) is provided with a plurality of groups of positioning grooves (110) arranged linearly and equidistantly, and the bottom of the PCB board (210) is provided with positioning posts (211) that are engaged with the positioning grooves (110).

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