CZ24531U1 - Holder of light source f LED diode cooler - Google Patents

Description

Technical field

The technical solution concerns a directionally adjustable heatsink holder for power LEDs designed especially for luminaires used for lighting of roads and buildings. The LED light source heatsink holder allows the light flow direction to be adjusted and / or the radiation pattern of the light source to vary.

Background Art

Simultaneously produced luminaires using powerful LEDs (light emitting diodes) have to provide effective removal of heat generated by LEDs in addition to mechanical and electrical protection. Coolers are used for this purpose, which are fixed to the luminaire structure or the luminaire body itself is used as a radiator.

For efficient use of luminous flux, the radiation characteristics of the light source must be adjusted. To direct the luminous flux emitted by the LED, a set of mirrors, additional secondary optics, a radiator shape arrangement, or various combinations of the methods are used.

The LED heatsinks of the light sources produced so far are firmly connected to the luminaire structure. When installing the luminaire, the entire luminaire must be directed in such a way that the appropriate radiation characteristics are achieved. In many cases, meeting this requirement is difficult or impossible because the supporting structures carrying the luminaires are located outside the optimum area. Relocation of support structures may be technically impossible or too costly. Fixing the fixture with a fixed gripper fixture is limited by fasteners and aesthetic considerations. Too much inclination of the luminaire leads to inefficient use of the produced light, the formation of light smog and can cause glare to people.

LED light sources used so far do not allow efficient use of the luminous flux produced in all situations. Incorrect directional luminous flux leads to light scattering outside the desired area. To meet the requirements of the standards and customer requirements, it is necessary to increase the light output. The efficiency of light sources is determined by their physical nature. To increase the light output, when using LEDs it is necessary to increase their number in the light source. As a result, the price of the luminaire itself increases as well as electricity consumption. The by-product of inappropriate light flow routing is the production of light smog.

The essence of the technical solution

The essence of the technical solution lies in the arrangement of the light sources which allows the luminous flux to be directed to the desired area without the need to change the location or size of the supporting structures, or to adapt the luminaire structure to individual requirements. The design of the directionally adjustable LED lamp holder allows the user to direct the luminous flux only to the desired area and thus significantly reduce the production of light smog and power consumption. The design is applicable to a large number of commonly manufactured luminaires. The advantage is the possibility of using different, previously unusable support structures for the installation of luminaires, for example at a greater distance from the illuminated surfaces. The design of the light source heatsink holder allows installation of the luminaire at a lower height above the illuminated area. This entails lower costs for the purchase, installation and maintenance of the lighting system. Positioning the luminaire at a lower height is also beneficial for aesthetic reasons.

The drawbacks of the prior art are substantially eliminated by the LED heat sink holder of the light source to adjust the direction of the light flow and / or the orientation of the radiation pattern of the light source in accordance with the present invention, comprising the fixed portion of the holder,

Which is mechanically attached to the construction of the light source and comprises a movable part of the holder that carries the LED diode. The movable part of the holder is pivotally connected to the fixed part of the holder and the holder is provided with means for locking the position of the movable part relative to the fixed part of the holder. The rotatable mounting of the movable portion has a substantially horizontal axis, which allows the handle 5 to tilt with the LEDs to the desired light emission direction.

The fixed part and the movable part of the holder will preferably be made of sheet metal, in particular of aluminum or stainless steel. The means for locking the position of the movable part relative to the fixed part of the holder can be formed by stepwise downwardly sloping cutouts in the fixed part of the holder into which the projections of the movable part of the holder engage. The swivel joint on the opposite side of the movable part of the holder is formed as a projection inserted with a clearance into the longitudinal, into the "V" shaped cut-out, the projection being rotatable in the cut-out and slidable within the cut-out path. By this arrangement, an adjustable mechanism is obtained which is maintained at the set position by the weight of the movable part of the holder with the LEDs, and no tools are needed to adjust the angle of inclination of the movable part of the holder. at the edge of the fixed part of the holder, and can be inserted into the selected new position. The "V" shape of the recess forming the pivot joint is intended to prevent the opposite projection from sliding off the recess. Another possibility is to create a stop, by which the movable part of the holder is blocked against being completely extended after inserting the projections into the cut-out.

In view of the variability in mounting the holder to the light source body, it is desirable if the fixed portion of the holder has attachment means for attachment to the light source body structure disposed in a square plan, that is, in four directional positions. This allows the bracket to be mounted in a 90 degree rotation in the light source body. In connection with the tilting of the movable part, this arrangement covers all the necessary angular-directional light flow requirements from the light source.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of an arrangement of a movable and fixed support portion with elongate cutouts in a fixed support portion at two different, extreme adjustment positions.

FIG. 2 is a plan view showing the location of the holder in the light source body;

FIG. 3 is a plan view with a movable portion rotated through 90 °.

FIG. 4 is a front view of the movable holder straight.

FIG. 5 is a front view, a movable holder shaped.

FIG. 6 is an existing state where an inefficiently illuminated area is visible.

FIG. 7 shows the result after adjusting the radiation pattern by means of an adjustable holder.

FIG. 8 is a defined area illumination - a pedestrian crossing with a movable part rotated by 90 °.

FIG. 9 is a side view of a fixed portion of the holder.

FIG. 10 is a plan view of a fixed part of the holder.

FIG. 11 is a detail of an embodiment of a handle of a movable holder portion with side guides on a projection that engages with a recess in a fixed portion of the holder.

FIG. 12 is a preferred embodiment of the projections for retaining the LED cooler.

-2 CZ 24531 Ul

Examples of technical solutions

Example 1

The power LED heat sink holder for directing the luminous flux is made of two sheet portions as shown in FIG. 1. The bracket assembly is installed in the fixture. The fixed part of the holder can be dimensionally adapted to the design of the luminaire used.

To fasten the entire assembly, the fixed bracket can be equipped with holes or variously shaped clips. The movable part of the holder is used to hold the LEDs coolers. Depending on the requirements of the user, the internal shape and method of attachment of the movable holder for retaining the radiator or LEDs may be appropriately adapted.

FIG. A detail of the holder of the movable holder is shown.

If necessary, the size of the holders, the number of adjustable positions and the angles can be changed. As shown in FIG. 4, the movable holder may be flat or shaped according to FIG. 5. The amount and size of bend angles can be customized to user requirements. The shaping of the movable bracket must respect the LED's radiation characteristics and the optical properties of the light housing.

The rigidity of the brackets is ensured by bends. To change the angle or orientation of the movable bracket, slide the bracket out of the grooves in the fixed bracket. The tabs and grooves are shaped so that no spontaneous displacement can occur in the normal operating position and no tool is required to change the setting.

Example 2

For the heat dissipation from the LEDs, there is a directly movable holder. In this case, the movable holder is made of a thermally conductive material that provides sufficient cooling, for example, an aluminum sheet.

Example 3

Depending on the coolers used, the movable part of the holder is provided with protrusions on opposite sides to accommodate the holes in the side walls of the cooler. Choosing the different pitch pitches will ensure that the cooler is correctly aligned in the holder.

Example 4

The projections on opposite sides of the movable part of the radiator holder are fixed on one side. On the opposite side, the projections are provided on a bendable portion provided with a suitable handle as shown in FIG. 12. The bend protrusions allow the cooler to be installed and removed without a tool simply by pulling and pressing the handle.

Example 5

The LED radiator bracket allows the attachment of other elements, in particular printed circuit boards with auxiliary circuits for control, control and regulation. In the place where there is a transparent cover under the holder, a sensor for communication and control is placed in the hole in the holder.

Industrial usability

The industrial applicability of this solution is obvious. The use of the LED lamp holder will significantly increase the usability of the light produced, reduce power consumption and significantly reduce light smog production.

The LED holder of the radiator will find its use in new and still manufactured lighting fixtures. Its design allows the use of LEDs as light sources in luminaires previously used for other light sources, bulbs, lamps and the like. Directionally

-3 CZ 24531 Ul adjustable LED heatsink holder light source is universally applicable for all light sources with powerful LEDs.

By using LED light source holders, it will reduce unnecessarily lit areas (Fig. 6 and Fig. 7).

Claims (5)

. 5 Claims for protection A light source LED holder for adjusting the direction of light flow and / or changing the orientation of a light source radiation characteristic, characterized in that it comprises a fixed part (1) of the holder that is mechanically attached to the light source body structure and includes a movable part ( 2) a bracket carrying the LED cooler (3), wherein the movable bracket portion (2) is rotatably connected to the bracket fixed portion (1) and the bracket is provided with means for detecting the position of the movable portion (2) relative to the fixed portion (1) holder. Lamp holder according to claim 1, characterized in that the fixed part (1) and the movable part (2) of the holder are made of sheet metal, preferably of aluminum or stainless steel, and means for locking the position of the movable part (2). ) to the fixed part (1) 15 of the holder is formed by stepped downward sloping slots in the fixed holder part (1), in which the projections of the movable holder part (2) fit and the pivot joint on the opposite side of the movable holder part (2) is formed as a projection into a V-shaped cut-out, the projection being rotatable in the cut-out and also displaceable within the cut-out path. Lamp holder for LED light sources according to claim 1 or 2, characterized by 20, characterized in that the fixed bracket part (1) has fastening means for fastening to the light source body structure disposed in a square plan for mounting in a 90 degree rotation in the light source body. A lamp holder for LED light sources according to claim 1 or 2 or 3, characterized in that the movable holder part (2) has fastening means for fastening a separate heat sink (3) on opposite sides of the heat sink opening, wherein on one side of the opening the lugs for inserting a separate LED cooler are fixed and the lugs are movable on the opposite side. A lamp holder for LED light sources according to claim 1 or 2 or 3 or 4, characterized in that the movable part (2) carries one or more separate heatsinks. 30 (3) LEDs.