LED light source base

Abstract

To provide an LED light source base for a marker lamp capable of easily controlling light dimming, color matching, and blinking patterns, and capable of being expanded easily.SOLUTION: A marker lens is made to shine uniformly by connecting several neo-pixel LED elements 200 provided on a base 100 in parallel by a connection method that enables a plurality of elements to be arranged in parallel by processing only output signals from some of the elements.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to the technical field of lighting devices, and more specifically to improvements in illumination lamps that can be used in a wide range of applications, such as marker lamps for automobiles, decorations for event vehicles, home illumination, and decorations for storefront signs. [Background technology]

[0002] As shown in Figure 2, in conventional relay systems, when producing complex lighting patterns such as alternating flashing or flowing light, complex wiring was required, including multiple wiring systems output from an analog relay to multiple marker lamps and multiple wiring to the RGB LED light source.

[0003] In other words, Figure 2 is a circuit diagram that repeats five relay patterns, but since one wire is required for one instruction, the more lighting patterns and colors there are, the more wiring there will be.

[0004] RGB LEDs connected to wiring do not have built-in ICs, so they only function in the same way. For example, each LED element connected to a wire that sends a red color signal cannot emit light in any color other than red, so there is little freedom in color expression.

[0005] Conventional NeoPixel LEDs are specified to be connected in series, as described in non-patent literature, and although it takes considerable time and effort to configure a program using specialized knowledge to keep the LEDs connected in series, it seems possible to achieve the same lighting as in the present invention, but connecting them in parallel is difficult.

[0006] When multiple full-color addressable LEDs are used on one circuit and data such as light emission, color adjustment, and blinking is input, multiple lighting patterns will occur according to the number of data. In other words, in marker lamps that have a bulb housed in a glass case, multiple lighting patterns will occur within the lens, so only one can be mounted as a light source board, resulting in insufficient light output.

[0007] If parallel connection is performed without any processing, multiple DATA OUT signals will be confused, and the subsequent NeoPixel LEDs that receive the signals will not be able to process them correctly, and will not be able to emit light correctly.

[0008] For example, in the conventional truck side marker lamps disclosed in Patent Document 1, it is not possible to change the color of the light emitted depending on the purpose of use, and it is also not possible to change the lighting pattern or color tone when used at events, etc., so it is necessary to change the internal circuit board, and if a relay circuit is required, complex wiring connections are necessary. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Real climb 3199053 [Non-patent literature]

[0010] [Non-Patent Document 1] World Semiconductor Corporation, Main Products, WS2812B Specifications, [online], September 18, 2007, World Semiconductor Corporation [Retrieved July 19, 2023], Internet <URL: http: / / www.world-semi.com / ws2812-family / > Summary of the Invention [Problem to be solved by the invention]

[0011] To provide a neopixel LED light source base that can freely and uniformly emit light from multiple LEDs with simple wiring processing. [Means for solving the problem]

[0012] The LED light source board of the present invention is a NeoPixel LED light source board characterized in that a plurality of NeoPixel LEDs are connected in parallel.

[0013] It is preferable that the LED light source board of the present invention is capable of inputting to multiple NeoPixel LED elements by using a circuit configuration that uses the output signals of only some of the elements of the NeoPixel LEDs connected in parallel.

[0014] The LED light source board of the present invention preferably includes input and output couplers in its circuit configuration. Effect of the Invention

[0015] With simple wiring, multiple units can be freely connected to produce uniform light emission. [Brief description of the drawings]

[0016] [Figure 1] 1 is a front and rear structural diagram of an LED light source board according to the present invention. [Diagram 2] As an example, this is a wiring diagram when a conventional RGB LED light source is installed together with a blinking relay unit. [Diagram 3] 1 is a circuit diagram of an LED light source board according to the present invention. [Figure 4] FIG. 2 is a connection diagram when multiple boards are connected according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] In one embodiment, the LED light source board of the present invention is a NeoPixel LED light source that is attached to a marker box and is composed of a board 100, a NeoPixel LED element 200, an input coupler 300, an output coupler 400, and a fixing hole 500. By using a connecting cable 600, it is easy to connect multiple boards 100 and expand the number of boards. This is a lighting fixture that has been devised to facilitate the conventional serial wiring and relay system.

[0018] The size and shape of the board 100 vary depending on the number of NeoPixel LED elements 200. In the present invention, a rigid multi-layer printed wiring board is used, but multiple boards such as anylayer boards and flexible boards can also be used depending on the application.

[0019] The NeoPixel LED element 200 is configured with a total of four pins: two power pins (+5V, GND) and two control signal input / outputs (DIN (control signal input), DOUT (control signal output)). The NeoPixel LED element 200 has an IC (microcomputer) and RGB LED chips inside the chip. The NeoPixel LED element 200 can control the light emission, lighting pattern, and color by itself. The NeoPixel LED element 200 originally emits light by connecting in series. In this invention, as one embodiment, an SMD5050RGB type NeoPixel LED, model number WS2812B, is used.

[0020] Each NeoPixel LED element is equipped with an IC chip (microcomputer) 201. The IC chip (microcomputer) 201 can control the color and brightness of each LED element according to a program.

[0021] Of the R·G·B chips 202, the R chip emits red light (RED), the G chip emits green light (GREEN), and the B chip emits blue light (BLUE).

[0022] The input coupler 300 has pins GND (ground), DIN (control signal input), and +5V (LED power supply). In one embodiment of the present invention, the material of the input coupler 300 is PPS (polyphenylene sulfide).

[0023] The output coupler 400 has pins GND (ground), DOUT (control signal output), and +5V (LED power supply). In one embodiment of the present invention, the material of the output coupler 400 is PPS (polyphenylene sulfide).

[0024] In the present invention, PPS (polyphenylene sulfide) is used for the input coupler 300 and the output coupler 400, but materials conventionally used in automobiles or for outdoor use can also be used instead.

[0025] In the diagram of FIG. 1 of the present invention, for ease of understanding, a three-pin input coupler 300 and a three-pin output coupler 400 are provided, but the connections can be freely changed depending on the application, such as the shape of the couplers, the number of couplers, and the wiring coming out of the board.

[0026] In FIG. 1, there are four fixing holes 500 on all four sides, but depending on the intended use, there may be two fixing holes, and the position, size, and number of holes can be changed depending on the design of the base for fixing the board, the position where the board is installed, and the number of NeoPixel LED elements 200.

[0027] The length of the connecting cable 600 can be changed depending on the purpose, installation location, etc. The cable material can be the same as that generally used for automobiles or outdoor use, but general electrical materials can also be used.

[0028] In the present invention, the controller unit 700 has the control software Arduino built in, which controls and transmits the light emission pattern, etc. The control software can be replaced with software other than Arduino.

[0029] 1 shows the front and back views of the main body of the board 100, and is a diagram of a board with four NeoPixel LED elements 200 as an embodiment. As described above, when the number of NeoPixel LED elements 200 varies from two to several, it is also possible to realize multiple boards such as anylayer boards and flexible boards depending on the size, shape, and use.

[0030] Increasing or decreasing the number of NeoPixel LED elements 200 will change the size and shape of the substrate 100, and similarly the position of the fixing holes 500, and in some cases the shape and size of the holes will also change.

[0031] An input coupler 300 and an output coupler 400 are mounted on the board 100, and a connection cable 600 is connected to the input coupler 300 and the output coupler 400, thereby making it possible to connect a plurality of boards.

[0032] The IC (microcomputer) chip 201 in the NeoPixel LED element 200 processes the control signals output from the controller unit 700 and instructs the R, G, and B chips 202 on the light intensity, color adjustment, and lighting pattern, respectively, and the R, G, and B chips 202 emit light as instructed.

[0033] When multiple boards are connected, the wiring of GND 203 , DATA IN (control signal input) 204 , and +5V 205 is connected from the controller unit 700 to the board 100 .

[0034] When multiple boards are connected, the connection cable 600 connecting the output coupler 400 and the input coupler 300 includes wiring for GND 203, +5V 205, DATA IN (control signal input) 204, or DATA OUT (control signal output) 206, and transmits signals.

[0035] The present invention makes it possible to freely control multiple NeoPixel LED elements to emit uniform light without the need for complex programming that requires specialized knowledge.

[0036] The present invention makes it possible to connect NeoPixel LED elements 200, which are specified for series connection, in parallel.

[0037] By connecting the Neopixel LEDs in the board in parallel, it is possible to make all the LEDs in the board light up in the same way regardless of the program, which provides sufficient light output and also makes it possible to freely change the blinking, dimming, and color adjustment patterns.

[0038] By combining the controller unit 700 and the NeoPixel LED element 200, the conventional relay unit itself is no longer necessary.

[0039] This has made it possible to reduce and simplify the wiring required for conventional relay machines, which was previously complex and difficult to understand.

[0040] The connecting cable 600 allows for expansion regardless of the location of the LED board.

[0041] It also makes it easy to connect for sequential lighting, simplifying installation work and shortening installation time.

[0042] 3 is a circuit diagram of an LED light source board in one embodiment. As shown in the figure, DIN (control signal input), GND, and +5V are sent to the NeoPixel LEDs 200 connected in parallel via an input coupler 300. Each received NeoPixel LED is processed by an IC (microcontroller) and causes the RGB LED chip to light up.

[0043] If they are simply connected in parallel, each NeoPixel LED element will output a control signal (DOUT), resulting in multiple signals being sent; however, in one embodiment, only the DOUTs of some of the NeoPixel LED elements that send signals are connected using a circuit configuration within the board 100, reducing the signal to just one. Therefore, GND, DOUT (control signal output), and +5V can be output from the output coupler 400.

[0044] The signal sent from the controller unit 700 in Fig. 4 is received by the IC (microcomputer) 201 in the NeoPixel LED element 200 connected in parallel in the board A in Fig. 4 via the connection cable 600 and the input coupler 300, and is processed and instructed to each RGB chip to execute. The output signal is sent to the following board B in Fig. 4, and the board B in Fig. 4 processes only one output signal as in the previous period via the output coupler 400 and connection cable 600, executes the signal, and outputs it to the next connected board C in Fig. 4... and so on, although it is board X in Fig. 4, it is repeated for the number of connected boards.

[0045] By using the NeoPixel LED 200 and using a parallel connection circuit configuration in which the output signal is output only to some of the elements in order to perform the parallel connection of the present invention and one signal is adopted, multiple NeoPixel LED elements 200 can emit light uniformly and freely, and since multiple elements emit light in a uniform manner, it is also possible to compensate for a lack of light.

[0046] As explained above, by using an LED with an internal IC and the controller unit 700, the relay control unit and RGB control unit in FIG. 2 become unnecessary, and therefore the relay unit itself becomes unnecessary.

[0047] Regarding wiring, the wiring has also been simplified by implementing the input coupler 300, the output coupler 400, and the connecting cable 600.

[0048] In the drawing of FIG. 1 of the present invention, a non-patent document SMD5050RGB type NeoPixel LED, model number WS2812B, is used, but the circuit of the present invention can also be used with similar addressable LEDs, such as model number WS2811.

[0049] The LED light source board of the present invention allows you to change the LED color and lighting pattern when used as a truck marker lamp, so if you use the LED light source board of the present invention on an event vehicle, you can reduce the amount of wiring and it is very convenient in terms of appearance. Furthermore, since there are no rules for the light color of the marker lamp, you can change it depending on your mood or situation, which is something that has never been seen before.

[0050] Another example is its use as outdoor decoration. For example, illuminations, residential and store decorations, store signs and lighting can easily have their lighting patterns and colors changed for each season or event. [Explanation of symbols]

[0051] 100 Foundation 200 NeoPixel LED elements 201 IC (microcomputer) 202 R·G·B chips 203 GND 204 DIN (control signal input) 205 +5V 206 DOUT (control signal output) 300 Input Connector 400 Output Connector 500 Fixing hole 600 Connecting Cable 700 Controller a Relay control unit b RGB control unit c1~5 Relay pattern wiring (for example, 5 patterns of wiring) d R (Red) signal wiring e G (green) signal wiring fb (blue) signal wiring g1~5 RGB light source board Since the symbols a to g5 are conventional examples, their explanation will be omitted.

Claims

1. A NeoPixel LED light source board, characterized in that a plurality of NeoPixel LEDs are connected in parallel.

2. A neopixel LED light source board characterized by a circuit configuration that enables multiple neopixel LEDs connected in parallel as claimed in claim 1 to be arranged in parallel by processing only the output signals of some of the elements.

3. A NeoPixel LED light source board comprising the circuit configuration of claim 2, and an input / output coupler.

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