High-voltage drive-free lamp strip

Abstract

The high-voltage drive-free lamp strip comprises a substrate, an L-pole line layer and an N-pole line layer which are arranged on the substrate in the length direction of the substrate, the L-pole line layer and the N-pole line layer are arranged at the upper end and the lower end of the substrate in an up-down parallel mode, and a plurality of sets of branch lines are arranged between the L-pole line layer and the N-pole line layer in the length direction of the substrate at equal intervals. The branch lines are of a Z-shaped structure, the adjacent branch lines are arranged in an up-down staggered mode, each branch line comprises a first connecting part, a second connecting part and a third connecting part, and the first connecting parts and the third connecting parts are each provided with two sets of light-emitting transistors in a welded mode side by side and are the first light-emitting transistors and the second light-emitting transistors; the first light-emitting transistor and the second light-emitting transistor are installed in parallel and are opposite in anode and cathode directions. According to the high-voltage drive-free lamp strip, the structure is simpler, the adjacent light-emitting transistors emit light alternately, heat accumulation is effectively reduced, and the stability of a circuit is ensured.

Description

Technical Field

[0001] This utility model relates to the field of LED strip manufacturing technology, specifically a high-voltage driverless LED strip. Background Art

[0002] LED light strips refer to LEDs assembled on a strip-shaped FPC (flexible printed circuit board) or PCB rigid board. They are named for their strip-like shape. Currently, high-voltage driverless light strips on the market have rectifier components such as diodes or bridge rectifiers designed on the light strip. However, transistors tend to generate a lot of heat during operation, which can affect the stability of the circuit. Moreover, the manufacturing cost of this type of driverless light strip is relatively high, and the circuit design requires the use of four diodes or bridge rectifiers, resulting in lower production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a high-voltage driverless lamp strip to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, this utility model provides the following technical solution:

[0005] A high-voltage driverless LED strip includes a substrate. The substrate has an L-polarity (L) circuit layer and an N-polarity (N) circuit layer arranged along its length. The L-polarity and N-polarity circuit layers are arranged parallel to each other at the upper and lower ends of the substrate. Several sets of branch lines are equidistantly arranged between the L-polarity and N-polarity circuit layers along the length of the substrate. The branch lines have a "Z"-shaped structure, with adjacent branch lines staggered vertically. Each branch line includes a first connecting portion, a second connecting portion, and a third connecting portion. The second connecting portion is located between the first and third connecting portions. The first and third connecting portions are horizontally aligned and parallel to each other. The second connecting portion is obliquely connected between the first and third connecting portions. The first and third connecting portions have identical structures. Two sets of light-emitting transistors (LEDs), a first LED and a second LED, are soldered side-by-side on both the first and third connecting portions. The first and second LEDs are connected in parallel, with their positive and negative terminals facing opposite directions.

[0006] A set of resistors is installed on each of the branch lines at intervals at the second connection point.

[0007] The width of the branch line is 0.1-0.3 mm.

[0008] The left and right ends of the L-polar circuit layer are respectively provided with first conductive plates, and the left and right ends of the N-polar circuit layer are respectively provided with second conductive plates. The first and second conductive plates have the same structure and are arranged symmetrically.

[0009] The L-pole circuit layer, N-pole circuit layer, and branch lines are all square strip structures.

[0010] Compared with the prior art, the high-voltage driverless light strip of this application has a simpler structure, eliminating the rectifier diodes and bridge rectifier structure, changing the arrangement direction of the light-emitting transistors, and adopting a forward and reverse design. This reduces the number of production steps and improves its production efficiency. This application allows adjacent light-emitting transistors to emit light alternately, effectively reducing heat accumulation and ensuring the stability of the circuit. Attached Figure Description

[0011] Figure 1 : A schematic diagram of the structure of this application;

[0012] Figure 2 Single-group branch line structure diagram;

[0013] Figure 3 : The installation structure diagram of the first resistor in the branch line. DETAILED DESCRIPTION

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Specific Implementation Example 1: Please refer to Figures 1 to 3 In this embodiment of the present invention, a high-voltage driverless lamp strip includes a substrate 1. The substrate 1 has an L-polar circuit layer 2 and an N-polar circuit layer 3 arranged along the length direction of the substrate 1. The L-polar circuit layer 2 and the N-polar circuit layer 3 are arranged in parallel at the upper and lower ends of the substrate 1. The left and right ends of the L-polar circuit layer 2 are respectively provided with a first conductive sheet 4, and the left and right ends of the N-polar circuit layer 3 are respectively provided with a second conductive sheet 5. The first conductive sheet 4 and the second conductive sheet 5 have the same structure and are arranged symmetrically at the top and bottom.

[0016] Several sets of branch lines 6 are arranged at equal intervals along the length of substrate 1 between L-polar line layer 2 and N-polar line layer 3. L-polar line layer 2, N-polar line layer 3 and branch lines 6 are all square strip structures. This shape is simple and easy to punch and arrange the lines in a standardized manner.

[0017] In this application, the branch line 6 has a "Z" shaped structure, with adjacent branch lines 6 arranged alternately vertically. The width of the branch line 6 is 0.1-0.3mm. The branch line 6 includes a first connecting part 601, a second connecting part 602, and a third connecting part 603. The second connecting part 602 is located between the first connecting part 601 and the third connecting part 603. The first connecting part 601 and the third connecting part 603 are arranged horizontally and parallel to each other. The second connecting part 602 is obliquely connected between the first connecting part 601 and the third connecting part 603. The first connecting part 601 and the third connecting part 603 have the same structure. Both the first connecting part 601 and the third connecting part 603 have two sets of light-emitting transistors welded side by side, which are the first light-emitting crystals. The first light-emitting transistor 7 and the second light-emitting transistor 8 are mounted in parallel. The positive and negative poles of the first light-emitting transistor 7 and the second light-emitting transistor 8 are opposite. In this embodiment, a total of twelve groups of light-emitting transistors are mounted on the substrate 1, and are numbered D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11 and D12 respectively. When the positive half-cycle of the sinusoidal voltage is input from the L-terminal circuit layer 2, the light-emitting transistors corresponding to D1, D3, D5, D7, D9, and D11 are turned on and lit; when the negative half-cycle of the sinusoidal voltage is input from the N-terminal circuit layer 3, the light-emitting transistors corresponding to D2, D4, D6, D8, D10, and D12 are turned on and lit.

[0018] In this application, a set of resistor elements 9 is installed on each of the alternate branch lines 6 at the second connection part 602.

[0019] Compared with the prior art, the high-voltage driverless light strip of this application has a simpler structure, eliminating the rectifier diodes and bridge rectifier structure, changing the arrangement direction of the light-emitting transistors, and adopting a forward and reverse design. This reduces the number of production steps and improves its production efficiency. This application allows adjacent light-emitting transistors to emit light alternately, effectively reducing heat accumulation and ensuring the stability of the circuit.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the foregoing exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-voltage driverless LED strip, characterized in that: The system includes a substrate with an L-type (L) circuit layer and an N-type (N) circuit layer disposed along the length of the substrate. The L-type and N-type circuit layers are arranged parallel to each other at the top and bottom ends of the substrate. Several sets of branch lines are equidistantly arranged between the L-type and N-type circuit layers along the length of the substrate. The branch lines have a "Z"-shaped structure, with adjacent branch lines staggered vertically. Each branch line includes a first connecting portion, a second connecting portion, and a third connecting portion. The second connecting portion is located between the first and third connecting portions. The first and third connecting portions are arranged horizontally and parallel to each other. The second connecting portion is obliquely connected between the first and third connecting portions. The first and third connecting portions have the same structure. Two sets of light-emitting transistors (LEDs), namely a first LED and a second LED, are soldered side by side to each of the first and third connecting portions. The first and second LEDs are connected in parallel, and the positive and negative directions of the first and second LEDs are opposite.

2. The high-voltage driverless LED strip according to claim 1, characterized in that: A set of resistors is installed on each of the branch lines at intervals at the second connection point.

3. The high-voltage driverless LED strip according to claim 1, characterized in that: The width of the branch line is 0.1-0.3 mm.

4. A high-voltage driverless LED strip according to claim 3, characterized in that: The left and right ends of the L-polar circuit layer are respectively provided with first conductive plates, and the left and right ends of the N-polar circuit layer are respectively provided with second conductive plates. The first and second conductive plates have the same structure and are arranged symmetrically.

5. A high-voltage driverless LED strip according to any one of claims 1-4, characterized in that: The L-pole circuit layer, N-pole circuit layer, and branch lines are all square strip structures.

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