LED lamp strip and manufacturing equipment

Abstract

The utility model discloses an LED lamp strip and manufacturing equipment, the LED lamp strip comprises a plurality of LED lamp beads, each LED lamp bead is provided with a pair of input pins and a light-emitting part, the light-emitting part is connected with the input pins, the LED lamp strip further comprises two wires, the two wires are arranged in parallel, and hollow areas are arranged between the two wires at intervals; each LED lamp bead is arranged in the hollow area, and the light-emitting part is arranged in the extending direction of the wire. A pair of input pins of each LED lamp bead is welded to the two wires respectively, and the LED lamp beads are connected in parallel. The light-emitting range of the LED lamp beads covers the two sides of the hollowed-out area. The LED lamp strip overcomes the technical problems that in the prior art, the error-tolerant rate is low, and the light intensity and brightness difference between the front face and the back face is large.

Description

Technical Field

[0001] The utility model relates to the field of electronic product accessories, and in particular to an LED light strip and manufacturing equipment. Background Art

[0002] Figure 1 This is a schematic diagram of an existing connection method for an LED light strip, in which each LED lamp bead includes a positive electrode and a negative electrode for the power LED lamp bead, as well as a signal input terminal IN and a signal output terminal OUT for driving and controlling the LED lamp bead. The positive electrodes of multiple LED lamp beads are connected in parallel, the negative electrodes of multiple LED lamp beads are connected in parallel, and the multiple LED lamp beads are connected in series in terms of signal input, that is, the input terminal of one LED lamp bead is connected to the output terminal of the previous LED lamp bead, and the input terminal of the first LED lamp bead is directly connected to the driver module. When this light strip is working, the driver module sends a control signal to the LED lamp beads at the rear end in sequence. After each LED lamp bead receives the control signal, it can only light up after obtaining the driving current from the positive and negative electrodes according to the control signal. The defects of this method are also quite obvious. For example, when one of the multiple LED lamp beads is disconnected at the signal input terminal IN, all LED lamp beads at the rear end of this LED lamp bead cannot receive the control signal, resulting in all LED lamp beads at the rear end failing to light up. In general, the fault tolerance rate is very low.

[0003] Figure 2 corresponds to Figure 1 Schematic diagram of the actual fixing method of LED lamp beads. When fixing and connecting such LED lamp beads, first connect the three cables together through soft plastic or silicone. The plastic or silicone is set between the two adjacent cables, which makes it convenient to fix the distance between the three cables and facilitate the welding of LED lamp beads. Among them, the two outermost cables are the positive cable and the negative cable, respectively, and the middle cable is the signal cable. The signal cable is connected in series with the input terminal IN and the output terminal OUT of the LED lamp bead, and the positive cable is connected to the positive pole of the LED lamp bead, and the negative cable is connected to the negative pole of the LED lamp bead. And after fixing the LED lamp bead, glue or seal the periphery of the LED lamp bead, and use transparent silicone to wrap the entire LED lamp bead and the connection position of the LED lamp bead and the cable to achieve waterproofing.

[0004] This connection method also has defects. First, the light-emitting direction of the LED lamp beads is only on one side of the plane where the three cables are located. That is to say, one side of the three cables emits light, and the light intensity on the back of the other side of the three cables is lower, resulting in a difference in light intensity. Utility Model Content

[0005] The purpose of the utility model is to provide an LED lamp bead to solve the technical problems of low fault tolerance and large difference in light intensity between the front and back sides of the light strip in the prior art.

[0006] The LED light strip of the present invention comprises a plurality of LED lamp beads, each of which has a pair of input pins and a light-emitting portion, and the light-emitting portion is connected to the input pins.

[0007] The LED light strip further includes:

[0008] Two conductors are arranged in parallel, and a hollow area is provided between the two conductors;

[0009] Each of the LED lamp beads is arranged in the hollow area, and the light-emitting portion is arranged along the extending direction of the wire; a pair of input pins of each of the LED lamp beads are respectively welded to two of the wires, and multiple LED lamp beads are connected in parallel with each other;

[0010] The light emitting range of the LED lamp beads covers both sides of the hollow area.

[0011] In the present invention, the LED lamp bead is arranged between two wires, and the two wires clamp the LED lamp bead, which can ensure the stability of the LED lamp bead. In addition, the light-emitting part of the LED lamp bead is arranged along the direction in which the wires extend, and is arranged in the hollow area between the wires, so the light emitted by the LED lamp bead can be emitted through the hollow area to both sides of the plane where the LED light strip is located at the same time, which can achieve a large emission angle and reduce the change in brightness and darkness compared to the existing technology.

[0012] In addition, multiple LED lamp beads are connected in parallel. The front-end driver module outputs the driving current and intermittently outputs the control signal at the same time, which can realize the control of the lighting mode of multiple LED lamp beads. When one of the LED lamp beads fails, it will not affect the operation and lighting of the LED lamp beads at the back end, and the fault tolerance rate is extremely high.

[0013] In this method, two wires are first fabricated with hollowed-out areas. The two wires are then injection molded to form a connecting area. When the hollowed-out areas are cut, the wires are also cut, removing the insulation and exposing the conductive metal. This method facilitates rapid production on the production line. LEDs are then installed in each hollowed-out area, and the LED pins are then soldered to the wires to achieve a secure connection.

[0014] The utility model can be quickly produced using a production line. For example, a rolling cutting device cuts the hollow area, an electronic material feeding device quickly positions the hollow area, and then LED lamp beads are installed and welded, all of which can realize unmanned mechanized equipment operation.

[0015] The utility model also discloses a manufacturing device for manufacturing the above-mentioned LED light strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a circuit connection diagram of an LED light strip in the prior art;

[0017] Figure 2 This is a schematic diagram of the connection of LED lamp beads in an LED light strip in the prior art;

[0018] Figure 3 This is a schematic structural diagram of the LED light strip of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the LED lamp bead of the present utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0021] Please refer to Figure 3 and Figure 4 The LED light strip 100 of the present invention first includes an LED lamp bead 10, wherein the LED lamp bead 10 has a pair of input pins 11 and a light-emitting portion 12. The input pins 11 are respectively positive and negative, and the light-emitting portion 12 is connected to the input pins 11. When current passes through the input pins 11 and enters the light-emitting portion 12, the light-emitting portion 12 will illuminate. The light-emitting portion 12 of the LED lamp bead 10 is provided with two grooves 121, which are located on opposite sides of the light-emitting portion 12 and are used to fix the light-emitting portion 12.

[0022] The LED light strip 100 includes two conductors 20. The two conductors 20 are arranged in parallel. A connection area 21 is provided between the two conductors 20. The connection area 21 is made of plastic and is used to connect the two conductors 20 so that the distance between the two conductors 20 is within a controllable range and is basically the same.

[0023] The LED light strip 100 is provided with a plurality of hollow areas 22 at intervals within the connection area 21. When the LED lamp beads 10 are fixed on the wires 20 to form the LED light strip 100, the light-emitting portion 12 of the LED lamp beads 10 needs to be arranged along the extension direction of the wires 20. Each LED lamp bead 10 is arranged in a hollow area 22, and a pair of input pins 11 of the LED lamp bead 10 are respectively welded to two wires 20, and multiple LED lamp beads 10 form a parallel connection relationship on the wires 20.

[0024] When the wire 20 has a conduction voltage and current, it can ensure that multiple LED lamp beads 10 are lit. Even if one of the LED lamp beads 10 fails and cannot be lit, it will not affect the operation of other LED lamp beads 10.

[0025] What is special is that the light-emitting area of ​​the LED lamp bead 10 covers both sides of the hollow area 22. At this time, light can be emitted from the hollow area 22 on both the front and rear sides of the LED light strip 100, thereby ensuring that the light intensity on the front and rear sides of the LED light strip 100 is basically the same, and the problem of large light intensity difference in the prior art will not occur.

[0026] When the LED lamp bead 10 of the present invention is fixed between the wires 20, the grooves 121 accommodate the wires 20, and each groove 121 accommodates one wire 20, and the grooves 121 are arranged along the extension direction of the LED light strip 100. At this time, the two wires 20 are respectively located in the two grooves 121. The two wires 20 serve the purpose of clamping and fixing the LED lamp bead 10. When the LED lamp bead 10 is welded to the wires 20, it can ensure that the LED lamp bead 10 does not shake, prevent the LED lamp bead 10 from falling off at the welding position, and improve the service life.

[0027] Among them, the input pin 11 has a bending portion 13, and the bending portion 13 is located near the wire 20 after extension, which can facilitate welding. After the bending portion 13 and the wire 20 are welded, the LED lamp bead 10 is located at one end of the bending portion 13 and is connected to the wire 20. The LED lamp bead 10 is located on one side of the light-emitting portion 12 and is clamped by two wires 20, thereby ensuring that the LED lamp bead 10 is firmly fixed.

[0028] After the bent portion 13 is welded to the wire 20 , the welded position is sealed with a sealant to achieve waterproofing.

[0029] In the process of lighting up the LED light strip 100 , when the wire outputs the driving current, the control signal is outputted in a time-sharing manner to drive the plurality of LED lamp beads 10 to light up.

[0030] Specifically, for example, if a square wave signal is input to wire 20 and the input pin of LED bead 10 is at a high level and the current exceeds the minimum lighting current, LED bead 10 will be illuminated. When the square wave signal operates at a higher frequency, LED bead 10 switches between the on and off states, and the high frequency makes this state switching difficult for the observer to detect.

[0031] When the LED lamp bead 10 needs to be controlled to be turned off, the square wave signal gives a low level with a long duration. At this time, the LED lamp bead 10 will be in the off state, and the long duration can be noticed by the observer. At this time, the LED lamp bead 10 appears to be not lit.

[0032] In order to realize the sequential lighting of the plurality of LED lamp beads 10 , a capacitive device may be provided inside the LED lamp bead 10 to delay the turning on of the LED lamp bead 10 .

[0033] In short, it is possible to connect multiple LED lamp beads 10 in parallel using only two wires 20 and then control the LED lamp beads 10 in various ways using square wave signals.

[0034] The utility model is manufactured according to the following process when manufacturing the LED light strip:

[0035] Step 1: Arrange two parallel wires, and provide a connection area between the two wires, wherein the connection area is used to connect and fix the two wires;

[0036] Step 2: cutting at intervals in the connection area to form hollow areas, wherein the conductive wires are exposed at the locations of the hollow areas;

[0037] Step 3: Install an LED lamp bead in each hollow area. Each LED lamp bead includes a light-emitting portion and a pair of input pins. The light-emitting portion is arranged along the extension direction of the wire. The light-emitting portion is provided with two grooves along the extension direction of the LED light strip. The two grooves are opposite to each other and are used to accommodate the wires. Each groove accommodates one wire. The light-emitting range of the LED lamp bead covers both sides of the hollow area.

[0038] Step 4: Soldering: Solder a pair of pins of the LED lamp bead in each hollow area to the wires respectively.

[0039] Step 5: The pin includes a bending portion, the bending portion faces the wire, each bending portion is welded to the lead, and the welding position between the bending portion and the wire is sealed to achieve waterproofing.

[0040] In this method, two wires are first fabricated with hollowed-out areas. These two wires utilize a connecting area. When the hollowed-out areas are cut, the wires are simultaneously cut, removing the insulation and exposing the conductive metal. This method facilitates rapid production on the production line. LEDs are then installed in each hollowed-out area, and the LED pins are then soldered to the wires to achieve a secure connection.

[0041] The present invention can utilize the production line for rapid production, for example, the rolling cutting equipment cuts the hollow area, the electronic material feeding equipment quickly positions itself to the hollow area, and then the LED lamp beads are installed and welded, all of which can realize the operation of unmanned mechanized equipment.

[0042] Finally, the present invention discloses an LED light strip manufacturing device, which is used to manufacture the LED light strip using the above method.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An LED light strip, comprising a plurality of LED lamp beads, each of which has a pair of input pins and a light-emitting portion, wherein the light-emitting portion is connected to the input pins, characterized in that: The LED light strip further includes: Two conductors are arranged in parallel, and a hollow area is provided between the two conductors; Each of the LED lamp beads is arranged in the hollow area, and the light-emitting portion is arranged along the extending direction of the wire; a pair of input pins of each of the LED lamp beads are respectively welded to two of the wires, and multiple LED lamp beads are connected in parallel with each other; The light emitting range of the LED lamp beads covers both sides of the hollow area.

2. The LED light strip according to claim 1, wherein: The light-emitting portion is provided with grooves along the extension direction of the LED light strip. There are two grooves, which are opposite to each other. The grooves are used to accommodate the wires, and each groove accommodates one wire.

3. The LED light strip according to claim 1, wherein: When the wire outputs the driving current, the control signal is output in a time-sharing manner to drive multiple LED lamp beads to light up.

4. The LED light strip according to claim 1, wherein: Plastic is provided between the two wires for fixing.

5. The LED light strip according to claim 1, wherein: The input pin has a bent portion, and the bent portion is welded to the wire.

6. The LED light strip according to claim 5, wherein: The bending portion and the welding position of the wire are sealed to achieve waterproofing.

7. A device for manufacturing LED light strips, characterized in that: The manufacturing equipment is used to manufacture the LED light strip as claimed in claim 1.

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