An online addressable programmable LED

Abstract

The present invention discloses an online addressable programmable LED, comprising an LED unit, the LED unit comprising a packaging bracket, the front of the packaging bracket being a first welding rack platform, a second welding rack platform, and a third welding rack platform, the first welding rack platform being provided with a plurality of LED light-emitting chips, the second welding rack platform being provided with a control chip, the third welding rack platform being provided with a first welding wire bracket and a second welding wire bracket, any of the LED light-emitting chips being electrically connected to the control chip via independent wires, the two ends of the control chip being further electrically connected to a first main lead and a second main lead, respectively, the first welding wire bracket and the second welding wire bracket being electrically connected to the control chip via independent wires. The present invention optimizes the packaging bracket structure, completes the cutting of the addressing wires within a single LED unit, facilitates the subsequent arbitrary combination and arrangement of multiple LED units, and can realize online addressing in combination with a terminal.

Description

Technical Field

[0001] The present invention relates to the technical field of LEDs, in particular to an online addressable programmable LED and a preparation process thereof. Background Art

[0002] The DMX512 protocol is a digital multiplexing protocol developed by the American Society of Theatre Technology. It is a dimming protocol used between transmitters and dimming devices and is a universal signal control protocol for digital lighting devices. In a DMX512-based LED chip system, a single DMX512 controller can control multiple LED chips. Signals are transmitted between the DMX512 controller and the LED chips using the DMX485 (RS485) bus. A DMX512 data packet consists of a start code and 512 data frames, meaning each packet contains 513 bytes. Each digital frame consists of a start bit, 8 data bits, and 2 stop bits. The DMX512 signal transmission rate is 250Kbps, and each data frame is 4µs wide. Transmitting a frame takes 44µs, and sending a 513-byte data packet takes approximately 23ms.

[0003] In existing LED unit control chips, fixed addresses are stored. These chips only receive frame data corresponding to their addresses and display the data accordingly. Therefore, LED chip systems based on the DMX512 protocol offer excellent digital control of LED chips. However, existing three-wire LED light strings automatically fix their internal addressing during production. This prevents the fixed address from being changed after the finished LED unit is finished, significantly limiting their usability. Furthermore, existing LED units typically require a DMX512 controller for lighting control and are incompatible with other communication protocols. To avoid this drawback, existing five-wire LED light strings are currently manufactured, consisting of a VCC main line, a GND main line, an addressing line A, an addressing line B, and a DATA line. This results in high wire costs. Furthermore, the current pandemic has caused rising prices for upstream raw materials, affecting industries such as metals, rare metals, aquaculture, chemicals, and healthcare. LED units, especially LED light strings, require a large amount of wire. Due to the rising prices of raw materials such as copper and plastic, the cost of wire continues to rise, affecting the manufacturing costs of enterprises. Summary of the Invention

[0004] In response to the above problems, the present invention aims to provide an online addressable programmable LED and its preparation process, optimize the packaging bracket structure, complete the cutting of the addressing lines in a single LED unit, which is conducive to the arbitrary combination and arrangement of multiple LED units in the later stage, and can realize online addressing in combination with the terminal; at the same time, it reduces the manufacturing cost of the product.

[0005] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0006] An online addressable programmable LED includes an LED unit, the LED unit includes a packaging bracket, the front of the packaging bracket is a first welding rack platform, a second welding rack platform and a third welding rack platform, the first welding rack platform is provided with a plurality of LED light-emitting chips, the second welding rack platform is provided with a control chip, the third welding rack platform is provided with a first welding wire bracket and a second welding wire bracket, any of the LED light-emitting chips are electrically connected to the control chip via independent wires, the two ends of the control chip are also used to electrically connect to the first main lead and the second main lead, and the first welding wire bracket and the second welding wire bracket are electrically connected to the control chip via independent wires.

[0007] The number of the LED light-emitting chips is 2 or more.

[0008] The first main lead of the control chip conductive communication connection and the VCC main line can realize power line carrier communication, the first main lead realizes the conductive communication connection between the control chip and the second welding frame platform, and the control chip is connected to the first welding frame platform through the second main lead conductive communication.

[0009] The bottom of the first welding rack platform is connected to the GND main line, the bottom of the second welding rack platform is connected to the VCC main line, and the bottom of the third welding rack platform is connected to the address writing line. The address writing line between the first welding wire bracket and the second welding wire bracket is cut off and not conductive.

[0010] A first bracket base and a second bracket base are provided at the bottom of the third welding frame platform. The first bracket base is electrically connected to the first welding wire bracket, and the second bracket base is electrically connected to the second welding wire bracket. A cutting gap is provided between the first bracket base and the second bracket base.

[0011] It includes several LED units, which are connected to form an LED light string through wires. The first welding wire bracket and the second welding wire bracket in any two adjacent LED units are connected through an address writing wire, and the address writing wire between the first welding wire bracket and the second welding wire bracket in any single LED unit is cut off and not conductive.

[0012] The LED units in the LED light string can be arranged in any number. After the connection and arrangement of any LED units in the LED light string are completed, the address writing and burning of each LED unit can be completed through the terminal.

[0013] The device comprises a plurality of LED units, which are connected to each other through wires to form an LED display screen. The first wire bonding bracket and the second wire bonding bracket in any two adjacent LED units are connected through an address writing wire, and the address writing wire between the first wire bonding bracket and the second wire bonding bracket in any single LED unit is cut off and not conductive.

[0014] The LED units in the LED display screen can be arranged in any number. After the connection and arrangement of any LED units in the LED light string are completed, the address writing and burning of each LED unit can be completed through the terminal.

[0015] The positional relationship between the LED light-emitting chip and the control chip and the first welding frame platform and the second welding frame platform can be interchanged, and the VCC main line and GND main line connected to the bottom of the first welding frame platform and the second welding frame platform can be adjusted according to the conductive transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects: it reduces the overall amount of wire used, thereby reducing the manufacturing cost of the product; it facilitates the arbitrary connection and expansion of LED units, is no longer limited to a single fixed writing address, and can adapt to different communication protocols.

[0017] The features of the present invention can be clearly understood by referring to the drawings and the following detailed description of preferred embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the packaging bracket structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure after packaging of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection structure of two adjacent LED units of the present invention;

[0023] Among them, 1. LED light-emitting chip; 2. control chip; 3. packaging bracket; 31. first welding frame platform; 32. second welding frame platform; 33. third welding frame platform; 331. first welding wire bracket; 332. second welding wire bracket; 34. first bracket base group; 35. second bracket base group; 36. third bracket base group; 361. first bracket base; 362. second bracket base; 4. VCC main line; 41. first main lead; 5. GND main line; 51. second main lead; 6. address writing line. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, the present invention provides an online addressable programmable LED, including an LED unit, which includes a packaging bracket 3. The front of the packaging bracket 3 is a first welding rack platform 31, a second welding rack platform 32 and a third welding rack platform 33. The bottom of the first welding rack platform 31 is connected with a first bracket base group 34, the bottom of the second welding rack platform 32 is connected with a second bracket base group 35, and the bottom of the third welding rack platform 33 is connected with a third bracket base group 36, wherein the third bracket base group 36 is respectively composed of a first bracket base 361 and a second bracket base 362. The structure of the packaging bracket 3 is optimized and designed to facilitate the combination of the LED light-emitting chip 1 and the control chip 2 to complete the solid crystal, and at the same time facilitate the cutting of the subsequent addressing line, thereby completing any subsequent connection and expansion of the LED unit.

[0027] Preferably, a plurality of LED light-emitting chips 1 are provided in the first welding frame platform 31, wherein the number of the plurality of LED light-emitting chips is 2 or more. According to the product requirements, the light-emitting chips can be arranged in different assemblies, which can be 2, 3, 4, etc. According to the requirements for the light emission of the LED unit, the color combination can be arranged according to the requirements; for example, the common number of 3 LED light-emitting chips is divided into red light chip, yellow light chip and yellow-green chip; a control chip 2 is provided in the second welding frame platform 32, and the control chip 2 can realize the driving, encoding, decoding, output, storage, etc. of the LED unit; a first welding wire bracket 331 and a second welding wire bracket 332 are provided in the third welding frame platform 33, wherein the first welding wire bracket 331 is used to connect to the first bracket base 361, and the second welding wire bracket 332 is used to connect to the second bracket base 362.

[0028] Preferably, any LED light-emitting chip 1 is electrically connected to the control chip 2 through an independent wire, wherein the independent wire is usually a gold wire completed during welding, and the gold wire preferably adopts an arch structure during welding; the two ends of the control chip 2 are also used to electrically connect to the first main lead 41 and the second main lead 51 respectively, and the first main lead 41 and the second main lead 51 are preferably composed of gold wire welding, and the first welding wire bracket 331 and the second welding wire bracket 332 are electrically connected to the control chip 2 through independent wires.

[0029] Among them, the bottom of the first welding frame platform 31 is connected to the GND main line 5, and the bottom of the second welding frame platform 32 is connected to the VCC main line 4. The VCC main line 4 is used to realize power line carrier communication and is used to carry VCC and Data at the same time. The bottom of the third welding frame platform 33 is connected to the address writing line 6. The address writing line 6 between the first welding wire bracket 331 and the second welding wire bracket 332 is cut off and not conductive. The first main lead 41 realizes the conductive communication connection between the control chip 2 and the second welding frame platform 32. The control chip 2 is conductively connected to the first welding frame platform 31 through the second main lead 51; the VCC main line 4 realizes conductive communication to the first main lead 41, completes the positive pole input of the power supply, and realizes conductive input to the first welding frame platform 31 through the second main lead 51 conductively connected to the control chip 2, completes the conduction with the GND main line 5, completes the negative pole connection, and realizes the conductive cycle; combined with several LED light-emitting chips 1 electrically connected to the control chip 2, light control is realized.

[0030] Preferably, the first main lead 41 and the VCC main line 4 connected to the control chip 2 for conductive communication can realize power line carrier communication. The power line carrier communication uses the first main lead 41 and the VCC main line 4 to transmit analog or digital signals at high speed through a carrier, thereby completing signal input to the control chip 2.

[0031] Preferably, a first bracket base 361 and a second bracket base 362 are provided at the bottom of the third welding frame platform 33. The first bracket base 361 is electrically connected to the first welding wire bracket 331, and the second bracket base 362 is electrically connected to the second welding wire bracket 332. A cutting gap 37 is provided between the first bracket base 361 and the second bracket base 362. The cutting gap 37 facilitates the cutting of the addressing wire 6 connected to the third bracket base group 36, so that the A end formed by the first welding wire bracket 331 and the B end formed by the second welding wire bracket 332 are not conductive when the addressing is performed. In the prior art, the A end and the B end in a single LED unit are connected and conductive, so that the addressing of several LED units on a single addressing line must be cured. Therefore, in the actual production process, the finished LED units and the cured addressing cannot be freely arranged when the LED units are controlled to emit light in the later stage. The addressing line after the cured addressing is no longer used for re-addressing because the A end and the B end in its single LED unit are connected and conductive, and the control chip cannot be processed secondary.

[0032] In the actual control process of the LED units after the address is solidified, for example, a single string of 100 LED units has an address within each LED unit that can be divided into A1~A100, and the control within the controller is also limited to the above-mentioned address. For example, if it is necessary to realize continuous lighting, that is, A2 is lit, A1 is turned off, A3 is lit, A2 is turned off, and so on. If it is necessary to increase to 200 LED units in actual use, although it can be connected continuously, when it is lit to A101, because its internal address is A1, it realizes that two points of a single LED light string are lit and turned off at the same time, and cannot realize continuous lighting of A1~A200.

[0033] In the LED unit of this embodiment, the address writing of ends A and B in a single LED unit is not conducted, so after the later extension, the address writing line can continue to write addresses online, and the A end in a single LED unit is conducted to the address writing unit inside the control chip and then input to the B end. The actual online address writing operation in the later stage shall prevail, which can facilitate the address writing positioning of any LED unit, and can realize the later re-processing of the control chip.

[0034] Example 2

[0035] Based on Example 1, an LED light string is also included, including a plurality of LED units, which are connected to form an LED light string through wires, the first welding wire bracket and the second welding wire bracket in any two adjacent LED units are connected through an address writing line, and the address writing line between the first welding wire bracket and the second welding wire bracket in any single LED unit is cut off and not conductive; the LED units in the LED light string can be arranged in any number, and after the connection and arrangement of any LED unit in the LED light string are completed, the address writing and burning of each LED unit can be completed through the terminal.

[0036] Example 3

[0037] Based on Example 1, an LED display is also included, including a plurality of LED units, which are connected to each other through wires to form an LED display screen, the first bonding wire bracket and the second bonding wire bracket in any two adjacent LED units are connected through an address writing line, and the address writing line between the first bonding wire bracket and the second bonding wire bracket in any single LED unit is cut off and not conductive; the LED units in the LED display screen can be arranged in any number, and after the connection and arrangement of any LED unit in the LED light string are completed, the address writing and burning of each LED unit can be completed through the terminal.

[0038] Example 4

[0039] This embodiment discloses a process for preparing an LED capable of online address writing and programming, including:

[0040] S1. Chip inspection: Based on process requirements, complete the inspection of chip surface, size, electrode size, and electrode pattern; check whether there is mechanical damage, pitting, or pitting on the chip surface, whether the chip size meets the process requirements, whether the electrode size meets the process requirements, and whether the motor pattern is complete;

[0041] S2. Apply primer. Apply primer to the middle of the first and second soldering platforms on the package bracket. The primer is silver glue or insulating glue. Silver glue is usually used for red, yellow, and yellow-green chips. In this step, the amount of glue dispensed, the height of the glue, and the location of the glue dispensed must be controlled and must be performed strictly in accordance with the process requirements.

[0042] S3, die bonding: Use a vacuum nozzle to place several LED light-emitting chips on the first welding frame platform, and install the control chip on the second welding frame platform; use automated equipment to complete the automatic die bonding process, and use a bakelite nozzle to prevent damage to the chip surface;

[0043] S4, baking to cure the primer, the baking temperature is 150 degrees Celsius to 170 degrees Celsius, and the baking time is 1 hour to 2 hours;

[0044] S5. Wire welding: Complete wire welding inside the LED unit, complete the conductive communication connection between the LED light-emitting chip and the control chip through gold ball welding, construct the first main lead and the second main lead through gold ball welding, and realize conductive welding of the positive and negative electrodes of the control chip; complete wire welding outside the LED unit, a first bracket base group is provided at the bottom of the first welding frame platform in the packaging bracket, a second bracket base group is provided at the bottom of the second welding frame platform, and a third bracket base group is provided at the bottom of the third welding frame platform. The first bracket base group is conductively welded to the GND main line, the second bracket base group is conductively welded to the VCC main line, and the third bracket base group is conductively welded to the address writing line;

[0045] S6, cutting, cutting the address writing line connected to the first bracket base and the second bracket base in the third bracket base group along the cutting gap to achieve no conduction;

[0046] S7, dispensing glue, curing the silicone rubber on the external packaging of the LED unit in the previous step to form a complete coating;

[0047] S8, baking to complete the curing of the silicone;

[0048] S9, finished product.

[0049] Example 5

[0050] This embodiment discloses an online addressable programmable LED, based on any of the above embodiments, wherein the positional relationship between the LED light-emitting chip 1 and the control chip 2 and the first welding frame platform 31 and the second welding frame platform 32 can be interchanged, and can be adjusted according to different LED packaging requirements. The corresponding VCC main line 4 and GND main line 5 are adjusted in position according to the packaging requirements and in combination with actual conditions.

[0051] The present invention reduces the overall amount of wire material used, thereby reducing the manufacturing cost of the product; facilitates the arbitrary connection and expansion of LED units, is no longer limited to a single fixed writing address, and can adapt to different communication protocols.

[0052] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the invention. Any simple modification, equivalent change or modification made to the above embodiment based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An online addressable programmable LED, comprising an LED unit, characterized in that: The LED unit includes a packaging bracket, the front of the packaging bracket is a first welding rack platform, a second welding rack platform and a third welding rack platform, the first welding rack platform is provided with a plurality of LED light-emitting chips, the second welding rack platform is provided with a control chip, the third welding rack platform is provided with a first welding wire bracket and a second welding wire bracket, any of the LED light-emitting chips are electrically connected to the control chip through independent wires, the two ends of the control chip are also used to be electrically connected to the first main lead and the second main lead respectively, the first welding wire bracket and the second welding wire bracket are electrically connected to the control chip through independent wires; the first main lead and the VCC main line of the conductive communication connection of the control chip can realize power line carrier communication, the first main lead realizes the conductive communication between the control chip and the second welding rack platform Electrical communication connection, the control chip is conductively connected to the first welding frame platform through the second main lead; the bottom of the first welding frame platform is connected to the GND main line, the bottom of the second welding frame platform is connected to the VCC main line, the bottom of the third welding frame platform is connected to the address writing line, and the address writing line between the first welding wire bracket and the second welding wire bracket is cut off and non-conductive; in a single LED unit, the address writing line between the first welding wire bracket and the second welding wire bracket is cut off and non-conductive, and the address writing line is cut into an address writing A line and an address writing B line by a single cut; a first bracket base and a second bracket base are provided at the bottom of the third welding frame platform, the first bracket base is electrically connected to the first welding wire bracket, the second bracket base is electrically connected to the second welding wire bracket, and a cutting gap is provided between the first bracket base and the second bracket base.

2. The online addressable programmable LED according to claim 1, characterized in that: The number of the LED light-emitting chips is 2 or more.

3. The online addressable programmable LED according to any one of claims 1 to 2, characterized in that: It includes several LED units, which are connected to form an LED light string through wires. The first welding wire bracket and the second welding wire bracket in any two adjacent LED units are connected through an address writing wire, and the address writing wire between the first welding wire bracket and the second welding wire bracket in any single LED unit is cut off and not conductive.

4. The online addressable programmable LED according to claim 3, characterized in that: The LED units in the LED light string can be arranged in any number. After the connection and arrangement of any LED units in the LED light string are completed, the address writing and burning of each LED unit can be completed through the terminal.

5. The online addressable programmable LED according to any one of claims 1 to 2, characterized in that: The device comprises a plurality of LED units, which are connected to each other through wires to form an LED display screen. The first wire bonding bracket and the second wire bonding bracket in any two adjacent LED units are connected through an address writing wire, and the address writing wire between the first wire bonding bracket and the second wire bonding bracket in any single LED unit is cut off and not conductive.

6. The online addressable programmable LED according to claim 5, characterized in that: The LED units in the LED display screen can be arranged in any number. After the connection and arrangement of any LED units in the LED light string are completed, the address writing and burning of each LED unit can be completed through the terminal.

7. The online addressable programmable LED according to claim 1, characterized in that: The positional relationship between the LED light-emitting chip and the control chip and the first welding frame platform and the second welding frame platform can be interchanged, and the VCC main line and GND main line connected to the bottom of the first welding frame platform and the second welding frame platform can be adjusted according to the conductive transmission.

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