LED light strip

Abstract

The present invention discloses an LED light strip, comprising a conductor array comprising two or more spaced-apart, parallel-arranged flat conductors; two or more flexible circuit board units arranged along the length of the conductor array; each flexible circuit board unit having an LED element soldered to its front surface; each flexible circuit board unit having its back surface facing the conductor array and in surface contact with the flat conductors comprising the conductor array; positive and negative solder joints provided at the ends of the flexible circuit board units; adjacent flexible circuit board units having gaps therebetween, wherein the gaps form soldering areas corresponding to the gaps on the sides where the flat conductors contact the flexible circuit board units; the positive and negative solder joints are soldered to the corresponding solder joints of the flat conductors via solder blocks and electrically connected to the flat conductors; the solder blocks located in the same solder joint area are integral. The present invention allows the positive and negative solder joints of the ends of adjacent flexible circuit board units, or the positive and negative solder joints, to be soldered to the same solder joint area using a single soldering process, thereby simplifying the soldering process and improving soldering efficiency.

Description

Technical Field

[0001] The invention relates to an LED light strip. Background Art

[0002] Existing flexible LED light strips include a long strip of wire array, a flexible circuit board and a translucent covering layer, the covering layer extending along the length of the light strip to cover the wire array and the flexible circuit board; the wire array includes two or more flat wires arranged side by side at intervals, each flat wire extending along the length of the wire array, each flat wire extending along the length of the wire array and each flat wire is fixed side by side on an insulating film; the flexible circuit board includes a plurality of flexible circuit board units arranged at intervals, the flexible circuit board units are arranged along the length of the wire array and there is a The flexible LED light strip has a gap between the flexible circuit board units, each with an LED component soldered to its front surface. The back of each flexible circuit board unit faces the conductor array, and each flexible circuit board unit is provided with at least one pair of positive and negative solder joints. An insulating film is provided between the flexible circuit board and the conductor array, in surface contact with each flat conductor. The insulating film comprises two or more strip-shaped film units, spaced apart along the length of the conductor array. The flat conductors are exposed in the gaps between adjacent strip-shaped film units, forming a flat conductor connection area. The positive and negative solder joints at the ends of each flexible circuit board unit are soldered to the flat conductors. With this structure, each flexible circuit board, conductor array, and covering layer will not wrinkle, and the flexible circuit board and conductor array will not wrinkle or become desolderable due to the continuous bending and stretching of the light strip. When using the light strip, the user can cut the LED light strip along the gap between the two flexible circuit board units according to the desired length. The positive and negative solder joints are used to electrically connect the flexible LED light strip to the conductor array and to external electrical devices. However, the flat conductors in the gaps of this LED light strip structure are relatively thin and easily broken by twisting or bending the strip. Furthermore, the positive and negative solder joints at the ends of each flexible circuit board unit are easily broken or desoldered to the flat conductors. Furthermore, connecting the positive and negative solder joints to external electrical components is cumbersome and unstable, thus requiring improvement. Furthermore, the positive and negative solder joints at the ends of each flexible circuit board unit are individually soldered to the flat conductors, which not only causes the aforementioned problems but also leads to low welding efficiency. Summary of the Invention

[0003] The present invention provides an LED light strip, which is used to improve the welding efficiency of positive electrode welding points or negative electrode welding points of a flexible circuit board unit of the LED light strip.

[0004] The technical solution of the present invention is achieved as follows:

[0005] An LED light strip provided by the present invention is characterized by comprising: a wire array, the wire array comprising two or more flat wires arranged side by side at intervals; two or more flexible circuit board units arranged along the length direction of the wire array, each flexible circuit board unit having an LED component soldered on its front side, the back side of each flexible circuit board unit facing the wire array and in surface contact with the flat wires that make up the wire array, the ends of the flexible circuit board units being provided with positive and negative solder joints, adjacent flexible circuit board units being provided with gaps, the gaps being such that a welding area is formed at a position corresponding to the gap on a side where the flat wire contacts the flexible circuit board unit; the positive and negative solder joints being respectively soldered and fixed to the corresponding welding areas of the flat wires by solder blocks and forming an electrical connection with the flat wires, wherein the solder blocks located in the same welding area are integral.

[0006] The above-mentioned LED light strip is characterized in that the positive and negative electrode welding points are provided at both ends of the flexible circuit board unit.

[0007] The above-mentioned LED light strip is characterized in that it further includes a light-transmitting covering layer, which extends along the length direction of the wire array and covers the wire array and the flexible circuit board unit.

[0008] Compared with the prior art, the present invention has the following advantages:

[0009] 1. The LED light strip has positive and negative solder joints at the ends of the flexible circuit board units, and each flexible circuit board unit has positive and negative solder joints at the ends; each positive and negative solder joint is respectively soldered to the soldering area of ​​the wire array through a solder block and forms an electrical connection with the wire array. Therefore, the present invention can use a solder block to solder the positive and negative solder joints at the ends of adjacent flexible circuit board units or the positive and negative solder joints to the same soldering area in only one soldering process, thereby simplifying the soldering process and improving soldering efficiency. The solder block can not only strengthen the connection between the flexible circuit board unit and the flat wire of the wire array, but also play a good reinforcing role for the flat wire of the wire array, so that the flat wire in the welding area no longer appears relatively thin, and is therefore not easily broken or desoldered due to twisting or bending of the LED light strip, making the LED light strip not easy to break.

[0010] 2. Other advantages of the present invention are described in detail in the embodiment section. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of the LED light strip provided in Example 1 of the present invention;

[0012] Figure 2 This is a plan view of the LED light strip in Example 1;

[0013] Figure 3 for Figure 2AA cross-sectional view;

[0014] Figure 4 for Figure 3 Enlarged view of part A;

[0015] Figure 5 This is a three-dimensional diagram of the LED light strip in Example 1 without solder blocks;

[0016] Figure 6 This is a three-dimensional exploded view of the LED light strip in Example 1 without solder blocks;

[0017] Figure 7 This is a schematic structural diagram of the wire array of the LED light strip provided in Example 2. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] Example 1:

[0020] like Figures 1 to 4 As shown, this embodiment provides an LED light strip. Figure 5 and Figure 6 This illustrates a state where an LED light strip is not soldered to a solder block, as provided by this embodiment.

[0021] This embodiment provides an LED light strip, comprising: a long strip-shaped conductor array 1, wherein the conductor array 1 comprises two or more flat conductors 11 arranged side by side at intervals (two flat conductors are preferred in this embodiment), each flat conductor 11 extending along the length direction of the conductor array 1, and a fixing film 12 fixed on the same surface of each flat conductor 11, wherein the fixing film 12 is made of insulating material and is in surface contact with each flat conductor 11; two or more flexible circuit board units 2 (only two flexible circuit board units are shown in the figure), arranged along the length direction of the conductor array 1, wherein each flexible circuit board unit 2 has an LED element 21 soldered on its front surface, and each flexible circuit board unit 21 has an LED element soldered on its back surface. Facing the conductor array 1, the backside of each flexible circuit board unit faces the conductor array and makes surface contact with the flat conductors 11 comprising the conductor array. Each flexible circuit board unit is provided with positive solder joints 22 and negative solder joints 24 at both ends. Adjacent flexible circuit board units are separated by gaps 23, forming soldering areas 111 corresponding to the gaps where the flat conductors contact the flexible circuit board unit. The positive and negative solder joints 22, 24 are each secured to the corresponding soldering areas 111 of the flat conductors via solder blocks 3, forming an electrical connection with the flat conductors. The solder blocks within the same soldering area are integral, and in this embodiment, preferably cover the entire soldering area 111. The conductor array 1 has a simple structure and low production costs.

[0022] The LED light strip described in this embodiment can use a solder block to solder the positive and negative solder points or the positive and negative solder points at the ends of adjacent flexible circuit board units to the same welding area with only one welding process, thereby simplifying the welding process and improving welding efficiency. In addition, the solder block 3 can not only strengthen the connection between the flexible circuit board unit 2 and the wire array 1, but also play a good reinforcing role for the flat wire 11 in the welding area 111 of the wire array 1, so that the flat wire 11 in the welding area 111 no longer appears relatively thin, and is therefore not easily broken or desoldered due to twisting or bending of the LED light strip, making the LED light strip less likely to break.

[0023] Example 2:

[0024] As one of the preferred embodiments, Figure 7 As shown, a light-transmitting coating 4 is coated around the periphery of the LED light strip in Example 1. Specifically, the coating 4 extends along the length of the wire array 1 and covers the wire array 1 and the flexible circuit board unit 2. The coating 4 can better protect the wire array 1 and the flexible circuit board unit 2.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An LED light strip, characterized in that: include: A conductor array comprising two or more spaced-apart, side-by-side flat conductors; two or more flexible circuit board units arranged along the length of the conductor array, each having an LED element soldered to its front surface and its back surface facing the conductor array and in surface contact with the flat conductors comprising the conductor array; positive and negative solder joints provided at both ends of the flexible circuit board units, with gaps formed between adjacent flexible circuit board units. The gaps create soldering areas corresponding to the gaps on the sides where the flat conductors contact the flexible circuit board units; the positive and negative solder joints are secured to the corresponding soldering areas of the flat conductors via solder blocks, forming an electrical connection with the flat conductors; the solder blocks located in the same soldering area being integral.

2. The LED light strip according to claim 1, characterized in that: The invention also comprises a light-transmitting covering layer, which extends along the length direction of the conductor array and covers the conductor array and the flexible circuit board unit.

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