LED lamp strip
By designing positive and negative conductive metal strips and power pins on the back of the circuit board, the problem of complex LED strip soldering is solved, enabling rapid power connection and strengthening the circuit board structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-31
AI Technical Summary
The existing LED light strip wire soldering process is complex and prone to problems such as incomplete soldering and poor conductive contact.
Parallel positive and negative conductive metal strips are designed on the back of the circuit board, with conductive pins formed at the ends, eliminating the need for soldering conductive wires. The strips are fixed by an attachment structure, and barrier posts are used to prevent short circuits.
It enables rapid power connection and good contact, reduces production difficulty, enhances circuit board strength, and avoids poor soldering and conductivity.
Smart Images
Figure CN224065430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light strip technology, and in particular to an LED light strip. Background Technology
[0002] Flexible LED light strips consist of a flexible outer shell (usually silicone), an LED light strip housed within the flexible outer shell, and a circuit board containing multiple small LED beads (light-emitting diodes) arranged at a certain spacing. Wires need to be soldered to the ends of the LED light strip for power connection. First, the solder pads of the light strip are lightly scraped with a blade. Then, the outer sheath of the wire is stripped to expose the copper foil, which is then tinned. The wires are then soldered to the corresponding solder pads (e.g., "+" connects to the positive terminal, "-" to the negative terminal; RGB light strips require color-coded soldering). Finally, the solder joints are wrapped with heat shrink tubing or insulating tape to prevent short circuits. Soldering the wires is very complicated, and if the worker lacks experience, unstable soldering can lead to problems such as cold solder joints and poor conductive contact.
[0003] To address the above issues, we have proposed a new technical solution. Utility Model Content
[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an LED light strip, and the technical solution adopted is as follows:
[0005] An LED light strip includes a circuit board. Two parallel and spaced-apart positive and negative conductive metal strips are attached to the back of the circuit board. The positive and negative conductive metal strips extend along the length of the circuit board, and their ends extend beyond the end of the circuit board to form positive and negative conductive pins, respectively. The positive and negative conductive metal strips are connected to printed circuits on the circuit board.
[0006] According to an embodiment of the present invention, the positive conductive metal strip and the negative conductive metal strip are both copper strips.
[0007] According to an embodiment of the present invention, an LED light strip is provided in which the positive conductive metal strip and the negative conductive metal strip are continuously or intermittently attached to the back of a circuit board.
[0008] According to an embodiment of the present invention, an LED light strip has two parallel and spaced attachment strips on the back of the circuit board along its length direction. The attachment strips are composed of multiple attachment windows arranged in a row along the length direction of the circuit board. The positive conductive metal strip and the negative conductive metal strip are arranged on the attachment strips and are attached to the attachment windows accordingly through the attachment structure.
[0009] According to an embodiment of the present invention, the attachment structure of an LED light strip is an adhesive structure or a welding structure.
[0010] According to an embodiment of the present invention, an LED light strip has a through hole at the cut line of the LED light strip, and a barrier strip formed by injection molding is provided in the through hole. The barrier strip is placed on the back of the LED light strip between the positive conductive metal strip and the negative conductive metal strip.
[0011] According to an embodiment of the present invention, the LED light strip is a PCB circuit board or an aluminum substrate circuit board.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention features a fully covered conductive metal strip designed along the length of the circuit board on the back. The end of the conductive metal strip extends beyond the end of the circuit board to form a conductive pin, which can be connected to the conductive terminal sleeve for conduction. This allows for rapid and good contact, eliminating the need for soldering conductive wires to the end of the circuit board. This eliminates the need for soldering and greatly reduces production difficulty. Furthermore, the fully covered design enhances the overall physical strength of the circuit board. Attached Figure Description
[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0015] Figure 1 This is a schematic diagram of the structure of some embodiments of the present utility model. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the structure of some embodiments of the present utility model. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the structure of some embodiments of the present utility model. Figure 3 ;
[0018] Figure 4 This is a schematic diagram of the structure of some embodiments of the present utility model. Figure 4 .
[0019] Explanation of key component symbols:
[0020] 10. Circuit board; 20. Positive conductive metal strip; 30. Negative conductive metal strip; 40. Positive conductive pin; 50. Negative conductive pin; 60. Attachment window; 70. Barrier bar. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0022] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.
[0023] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.
[0024] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.
[0025] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.
[0026] This utility model provides an LED light strip, such as Figure 1 , 2 As shown in Figures 3 and 4, the circuit board 10 is a PCB circuit board 10 or an aluminum substrate circuit board 10. Two parallel and spaced positive conductive metal strips 20 and negative conductive metal strips 30 are attached to the back of the circuit board 10. The positive conductive metal strips 20 and negative conductive metal strips 30 extend along the length of the circuit board 10, and the ends of the positive conductive metal strips 20 and negative conductive metal strips 30 extend beyond the end of the circuit board 10 to form positive conductive pins 40 and negative conductive pins 50, respectively. The positive conductive metal strips 20 and negative conductive metal strips 30 are connected to the printed circuits on the circuit board 10.
[0027] This invention features a fully covered conductive metal strip designed along the length of the circuit board 10 on the back side. The end of the conductive metal strip extends beyond the end of the circuit board 10 to form a conductive pin, which can be connected to the conductive terminal sleeve for conduction. This allows for rapid and good contact, eliminating the need for soldering conductive wires to the end of the circuit board 10. This eliminates the need for soldering and greatly reduces production difficulty. Furthermore, the fully covered design enhances the overall physical strength of the circuit board 10.
[0028] Furthermore, in some embodiments of this utility model application, the positive conductive metal strip 20 and the negative conductive metal strip 30 are both copper strips, which have good conductivity and good structural strength and flexibility, improving the physical strength of the circuit board 10 while also being able to be bent. In other embodiments, the positive conductive metal strip 20 and the negative conductive metal strip 30 are made of conductive alloy materials.
[0029] Furthermore, in some embodiments of this utility model application, such as Figure 1 , 2 As shown in Figures 3 and 4, the positive conductive metal strip 20 and the negative conductive metal strip 30 are continuously attached to the back of the circuit board 10.
[0030] Furthermore, in some embodiments of this utility model application, such as Figure 2 , 3 As shown, two parallel and spaced attachment strips are formed along the length of the back of the circuit board 10. Each attachment strip consists of multiple attachment windows 60 arranged in a row along the length of the circuit board 10. The positive conductive metal strip 20 and the negative conductive metal strip 30 are arranged on the attachment strips and are correspondingly attached to the attachment windows 60 via an attachment structure, which can be an adhesive structure or a soldering structure. Specifically, attachment windows 60 are first formed along the back of the circuit board 10. Then, copper strips are attached to the back of the circuit board 10. At the attachment windows 60, the copper strips are compressed to form a larger attachment area, and then soldered to the attachment windows 60.
[0031] To prevent the positive conductive metal strip 20 and the negative conductive metal strip 30 from sticking together and causing a short circuit, further, in some embodiments of this utility model application, such as Figure 3 , 4 As shown, a through hole is provided at the cut line of the LED light strip. The through hole can be circular, rectangular or other shapes. A barrier strip 70 is provided in the through hole and is filled in the through hole. The barrier strip 70 is placed on the back of the LED light strip between the positive conductive metal strip 20 and the negative conductive metal strip 30. The barrier strip 70 can intermittently separate the positive conductive metal strip 20 and the negative conductive metal strip 30.
[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.
Claims
1. An LED light strip, characterized in that, The application relates to a circuit board (10) with two parallel and spaced positive and negative conductive metal strips (20, 30) attached to the back of the circuit board (10), the positive and negative conductive metal strips (20, 30) extending along the length of the circuit board (10) and the ends of the positive and negative conductive metal strips (20, 30) extending beyond the ends of the circuit board (10) to form positive and negative conductive pins (40, 50), and the positive and negative conductive metal strips (20, 30) being connected to the printed circuit on the circuit board (10).
2. The LED light strip of claim 1, wherein, The positive and negative conductive metal strips (20, 30) are copper strips.
3. The LED light strip of claim 1, wherein, The positive and negative conductive metal strips (20, 30) are continuously or discontinuously attached to the back of the circuit board (10).
4. The LED light strip of claim 3, wherein, Two parallel and spaced attachment strips are formed on the back of the circuit board (10) along the length of the circuit board (10), the attachment strips being composed of a plurality of attachment windows (60) arranged in columns along the length of the circuit board (10), the positive and negative conductive metal strips (20, 30) being arranged on the attachment strips and attached to the attachment windows (60) by attachment structures.
5. The LED light strip of claim 4, wherein, The attachment structures are adhesive structures or welding structures.
6. The LED light strip of claim 1, wherein, A through hole is formed at the cutting line of the LED lamp strip, a barrier strip (70) is arranged in the through hole and formed by injection molding, and the barrier strip (70) is arranged between the positive and negative conductive metal strips (20, 30) on the back of the LED lamp strip.
7. The LED light strip of claim 1, wherein, The circuit board (10) is a PCB circuit board or an aluminum substrate circuit board.