LED floor

Abstract

The two different spacings between the SMD LEDs mounted on the LED strips are: - from LED center to LED center: 33.3mm. This measurement is calculated as follows: The distance from SMD edge to SMD edge is 28.3 mm. An SMD LED body measures 5 mm × 5 mm. The distance from the edge of an SMD LED to the center is therefore 2.5 mm. 28.3 mm + 2 times half the width of the SMD LED equals 33.3 mm. - from LED center to outer edge of a module 16.65mm. This measurement is calculated as follows: The distance from the SMD edge to the center of the LED is 2.5mm. Half of 28.3 mm is 14.15 mm. 14.15 mm plus half the width of the SMD LED equals 16.65 mm. These two dimensions are a significant feature of the LED base. Reference illustration for dimension 1: (Fig. 3 - center of (1) to center of (2)) Reference illustration for dimension 2: (Fig. 3 - center of (1) to outer edge)

Description

[0001] It is an LED floor with the following special features: The surface can be adapted to the surface of the installation site. This means that, for example, in a 5m x 5m area, you can "illuminate" a 2.50m x 5m section and there will be virtually no visual difference from the unlit section. The developed floor has a modular structure. ( Fig. 2) shows a truncated diagram. The standard modules are each 499.50 mm wide and 499.50 mm deep, but "end surfaces" with other dimensions are also possible. These must be individually planned and manufactured. The buildable area can therefore be adapted to the desired dimensions. Non-rectangular floor areas are also possible. The floor can be illuminated in a single color using appropriate LED strips. It's also possible to assign a specific color to each LED individually using digital LED strips. This is done via an SPI controller, which typically uses the DMX, ArtNet, or sACN E1.31 lighting protocols and can be controlled using appropriate software. The floor is splash-proof, can be cleaned with a damp mop, and can withstand heavy loads. Tested with a weight of approximately 250 kg distributed across six casters. The floor has a very low installation height (the prototype has a total height of 31mm) and is therefore much more flexible to use than “embedding televisions in the floor” (which specifies a minimum installation height of 20cm due to heat development / heat dissipation) and is therefore also “mobile” to use. Structure of a module:

[0002] A module consists of 3 essential components: 1. Substructure 2. Center plate with grooves, pockets & holes as well as the LED light sources 3. Top layer of vinyl or laminate flooring panels according to the decor specifications at the installation site 1. The substructure (Fig. 4 (5))

[0003] The substructure ( Fig. 4 (5)) is essentially made of wood or plastic. The prototype uses a so-called LisoCore plate, which is 25 mm thick. This substructure contains milled channels for cable routing as well as additional holes for connecting the individual modules. Centered on the Y-axis, there is a milled cable channel below and an opening on the top for the power supply. The substructure is in Fig. 4 can be seen in height. 2. Center plate with grooves, pockets & holes (Fig. 4 (4))

[0004] The center plate has 15 milled grooves on the underside, each 0.5mm deep. Holes with a diameter of 9mm are milled into these grooves at appropriate intervals. The appropriate center-to-center spacing ensures that the individual LEDs are spaced exactly the same across all modules – both horizontally and vertically.

[0005] In addition to the grooves and holes for the lighting part, there are also pre-drilled holes to connect the substructure to the middle plate as well as a total of 8 recesses ( Fig. 5 (7)), so-called “pockets”,

[0006] in which the connecting straps ( Fig. 6 (6)) which ensure that the substructure elements can be connected to each other. The middle plate is in ( Fig. 5) seen from below. 3. Top layer (Fig. 4 (3))

[0007] The top layer consists of vinyl or laminate flooring panels milled to the exact dimensions of 499.50 mm × 499.50 mm. Holes are milled into the top layer at the same spacing as those in the center panel and filled with transparent epoxy resin. Power and data supply of a module

[0008] The power supply for each module is provided by a DC power source with the appropriate voltage and amperage. Each module contains an 8 mm² positive and a negative cable. Multiple modules are connected in series using MC-4 solar connectors.

[0009] The data supply is carried via a three- or four-wire cable. In the case of the prototype, a strip with a redundant data line was installed.

[0010] This resulted in a data line, a backup data line, a ground line, and a voltage line. The voltage and ground lines are used exclusively to transport the voltage from LED strip to LED strip. The main power consumption always occurs in the center of a module. Each individual strip, of which there are 15 strips with a length of 15 individual LEDs per module, is connected to its neighboring strip or to the input and output using a four-pin cable.

[0011] In practice, this results in a line forming across the module. LED1 is located in the first row on the right, LED15 on the left in the first row, LED16 in the second row on the left, LED30 at the end of the second row on the right, and LED225 at the end of row 15 on the left. After soldering, the individual connecting cables are folded down and thus disappear into the substructure.

[0012] The controller output is plugged into the data connector on the first module, and the input of module 2 is plugged into the output of module 1. This creates a chain of LEDs to form a very long strip. The number of modules that can be connected depends on the controller used. Networking of the modules to form a surface

[0013] The individual modules are connected via tabs (6), which in the prototype are 3D-printed. These fit into the recesses (“pockets” (7) of the center plate. In ( Fig. 5) a center plate (4) is shown. The recesses, "pockets" (7) can be seen. In ( Fig. 6) the upper left corner of a substructure (5) and two tabs (6) can be seen. Assembly & maintenance of the modules

[0014] The individual modules are assembled on an area provided by the customer or event organizer, which is ideally level. It doesn't matter whether the ground is paving stones, asphalt, wood, grass, or concrete. It just needs to be load-bearing.

[0015] With a permanent installation, maintenance work is required at regular intervals. To service a module, you can lift the cover layer along with the glued center plate to disconnect the power and data connections. This allows you to flip the plate over, gaining access to the strips and replacing entire strips and / or individual LEDs using a soldering iron. List of reference symbols 1 hole on the edge of a module 2 reference holes 3 Top layer 4 Middle plate 5 Substructure 5 Tab for connecting individual modules 7 recesses for tabs

Claims

[1] The two different spacings between the SMD LEDs mounted on the LED strips are: - from LED center to LED center: 33.3mm. This measurement is calculated as follows: The distance from SMD edge to SMD edge is 28.3 mm. An SMD LED body measures 5 mm × 5 mm. The distance from the edge of an SMD LED to the center is therefore 2.5 mm. 28.3 mm + 2 times half the width of the SMD LED equals 33.3 mm. - from LED center to outer edge of a module 16.65mm. This measurement is calculated as follows: The distance from the SMD edge to the center of the LED is 2.5mm. Half of 28.3mm is 14.15mm. 14.15mm + 1 times half the width of the SMD LED equals 16.65mm. These two dimensions are a significant feature of the LED base. Reference figure for dimension 1: ( Fig. 3 - Center of (1) to center of (2)) Reference figure for dimension 2: ( Fig. 3 - Center of (1) to outer edge) [2] The structure of a module with - - the corresponding dimensions 499.50mm × 499.50mm ( Fig. 1). - the data cable guide which is bent downwards to enable modules to be networked with each other. - three-part basic structure consisting of substructure (5), middle plate (4) and cover layer (3) as well as their positions for networking modules - the central feed of mains voltage into the module - the cable routing for the signal input and output, which is made possible by two milled grooves. - the tabs (6) for connecting the substructures (5) in the appropriate size. [3] The 0.5mm deep millings in the appropriate distance to allow the carrier of the LEDs - the so-called PCB - to "sink" into the wood.

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