RU2561712C2 - Led lantern and heat-removing profile as its casing - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering, and is intended for lighting, mainly, of the internal rooms, salesrooms, corridors. The casing is made symmetrical relatively to the longitudinal plane. The installation plate if the light module is tightly pressed to the base of the heat-removing profile by screws to the central U-shape slot, to which at the opposite sides the side covers are pressed by one screw each. The symmetrical slots for securing of the translucent screen look outside relatively to the closed contour of the profile. The side and rear walls of the casing are made corrugated.

EFFECT: simple design, reduced overall dimensions, this is provided by use of the heat-removing profile as lantern casing with rear, face and two side walls with creation of the closed cavity, on its rear wall from outside the slot is made for securing to the external structure.

5 cl, 12 dwg

Description

Technical field

Declared as a group of inventions (a lamp and its housing), the device relates to lighting devices on solid-state semiconductor light sources (arranged in a row or strip), the basis of which is a housing made in the form of an extruded profile. It is intended for illumination mainly of internal premises, trading floors, corridors, etc., where fluorescent fluorescent lamps are traditionally commonly used.

State of the art

To date, there are quite a lot of solutions for LED luminaires based on profile:

- patent RU 2476764 C1, IPC F21S 8/00 from 09/12/2011;

- patent RU 131450 U1, IPC F21S 8/00 from 11/27/2012;

- patent RU 128918 U1, IPC F21S 8/00 of 03/19/2012;

- patent RU 127865 U1, IPC F21S 8/00 from 09/13/2012;

- patent RU 124768 U1, IPC F21S 13/10 of 03/03/2012;

- patent RU 123109 U1, IPC F21S 8/00 of June 15, 2012;

- patent RU 118398 U1, IPC F21S 13/00 of 02.02.2012;

- patent RU 118397 U1, IPC F21S 8/00 of 02.02.2012;

- patent RU 116604 U1, IPC F21S 8/00 of 02/03/2012;

- patent RU 116201 U1, IPC F21S 8/00 from 08/15/2011;

- patent RU 114506 U1, IPC F21S 8/00 of 08/16/2011;

- patent RU 94663 U1, IPC F21S 4/00 of 03/22/2010;

- patent RU 106335 U1, IPC F21S 13/00 of 03/23/2011;

- patent RU 102748 U1, IPC F21S 13/00 from 09/28/2010;

- patent RU 99854 U1, IPC F21S 13/00, F21S 4/00, F21V 7/20, F21V 17/04, F21V 19/00 from 07/28/2010;

- patent RU 90165 U1, IPC F21S 4/00, F21V 14/00 from 09/07/2009;

- patent RU 67693 U1, IPC F28F 1/10, F28F 3/00, H01L 33/00, F21S 8/00, dated 04/26/2007;

- US 2007/0047229 A1, IPC F21V 5/00 of 03/01/2007.

Of these, as analogues, we will be interested in solutions that are close in layout solution: the heat sink profile as a lamp housing has a closed circuit in which the power source is located; light (s) modules (s) are placed on one of the walls of this closed loop; light (s) modules (b) are protected by a translucent screen, the fastening of which is carried out along the symmetrical grooves of the lamp housing; from opposite ends the lamp is closed by covers:

- patent RU 90165 U1, IPC F21S 4/00, F21V 14/00 from 09/07/2009;

- patent RU 102748 U1, IPC F21S 13/00 from 09/28/2010;

- patent RU 106335 U1, IPC F21S 13/00 of 03/23/2011;

- patent RU 94663 U1, IPC F21S 4/00 of 03/22/2010;

- patent RU 114506 U1, IPC F21S 8/00 of 08/16/2011;

- patent RU 116201 U1, IPC F21S 8/00 from 08/15/2011;

- patent RU 124768 U1, IPC F21S 13/10 of 03/03/2012;

- patent RU 127865 U1, IPC F21S 8/00 from 09/13/2012;

- patent RU 67693 U1, IPC F28F 1/10, F28F 3/00, H01L 33/00, F21S 8/00, 04/26/2007 (in this solution, the circuit is closed directly by the light module board itself);

- patent RU 94663 U1, IPC F21S 4/00 dated 03/22/2010 (here, the fastening of the translucent screen is additionally carried out by screws);

- patent RU 131450 U1, IPC F21S 8/00 of 11/27/2012 (there is no translucent screen in this solution, protection against external influences is carried out using a sealing material - compound.

Moreover, solutions according to the documents RU 106335 U1, RU 114506 U1, RU 127865 U1, RU 124768 U1 allow to obtain devices with a modular construction principle, i.e. provide for the possibility of scaling the lamp.

For the prototype adopted the closest of these analogues:

- patent RU 124768 U1, IPC F21S 13/10 of 03/03/2012;

comprising an LED lighting module, the housing of which is made in the form of a radiator from a profile body with a rear wall and two side walls, with ribs at least on the side walls, containing at least one LED radiation source mounted on at least one mounting plate fixed in the symmetrical internal grooves of the housing -profile, a protective optically transparent screen fixed in symmetrical grooves, characterized in that the profile body is made with a jumper between the side walls of the profile with the formation of poked cavity.

The disadvantage of the prototype in relation to the claimed solution is the increased number of components of the product, as a result - the complexity of the assembly itself, as well as a more complex shape of the heat sink profile, which negatively affects its cost both in terms of material costs, and in terms of preparation of production and production directly . So, for assembly of protective covers with a body, 8 screws are required, in the proposed solution, only 2 are needed with fastening to the grooves, which are also used for fastening light module boards. The prototype uses sealing elements, in the proposed solution - they are absent, protection against moisture is provided by the design of the profile and a protective translucent screen.

The boards in the claimed solution are fastened with screws, thereby clamping them to the radiator, which improves the transfer of heat to the case, in contrast to the case when the boards are installed in slots, as in the prototype.

Unlike the prototype, the required illumination is achieved by increasing the number of fixtures, rather than light modules, since in the latter case, when the modules are combined into a lamp, the ability of the radiator to give off heat is deteriorated (because, firstly, the gap between the light modules is eliminated, and secondly, they shield friend), which is compelled to compensate by the complexity of the radiator design - by adding more ribs of complex configuration and the mass of the radiator is growing, which negatively affects the price of lighting instrument. Therefore, in the case of lighting large areas, for example, trading floors, it is more advantageous not to increase the power of each light point (since solutions based on the profile are considered, here, by increasing the power of the light point we mean the extension of the modules in the transverse direction with the modules connected to each other, because in the longitudinal direction, the power is regulated by the length of the profile) with the formation of the corresponding radiation pattern (among other things, special optics are also required), and increase the number yourself x light points, firstly, with simpler optics, and secondly, with a lower mass and simpler design of the lighting device as a whole. In this case, the required radiation pattern for each individual light point in the case of using separate luminaires can also be selected, but not by equipping each LED with its own optics, as in the case of a prototype using collectors, but by combining this optics with a translucent screen, made like a body, extruded way. And then, given that the illumination is controlled by the number of fixtures, there is no need for combined optics within a single fixture, which allows optics to be extruded. This significantly reduces the cost of the product.

The cost of the product can also be reduced by refusing cooling fins. When using a light device in a room, their efficiency drops sharply - they are shielded from vertical air currents and begin to work either outdoors in the wind, or with a significant increase in temperature, when a more efficient thermal radiation of energy begins. In the claimed solution, to increase the area of the vertically blown surface of the heat sink profile, the latter is made corrugated - and at the same time additionally: the weight is reduced, the longitudinal rigidity is given to the lamp.

The technical problem of the proposed solutions:

- the creation of the most simple in constructive and technological respects product design, the smallest possible material consumption, while maintaining the required performance characteristics for its field of application.

SUMMARY OF THE INVENTION

The main ideas of the proposed solutions were given in the section "prior art" in comparison with the solution of the prototype.

The essence of the invention consists in the design features of the device:

The heat-transfer profile is made in the form of a closed box-section profile with corrugated (flooded) side and rear walls, and on the back wall there is a groove C on the outside in the form of symmetrical L-shaped elements directed to each other for the fixture of the fixture in the hanging, ceiling and wall versions. On the opposite side, a groove is also made along the front wall, a central U-shaped one, directed inside the closed loop, which at the same time serves to fasten the light modules with screws in the transverse direction relative to the groove, and the side covers with screws in the direction longitudinal with respect to the groove. Symmetrical grooves in the form of U-shaped elements open outward, directed from each other and not extending beyond the dimension of the cross-section of the profile, are made along the front wall for fastening a translucent screen, located inside the side dimensions of the box, which is coupled with the mating elements that are translucent the screens have bent ends attached to the grooves on the outside of the closed profile, eliminates the ingress of water into the compartment of the light module when using the product in suspended and ceiling versions.

Cooling fins as such are absent, in fact, they are structural elements of the heat-sink profile.

Rigidity to the product - the product is thin-walled, elongated in the longitudinal direction, gives a closed loop (from the total loss of stability) and the corrugated surface of the outer walls (from the local loss of stability).

Solid-state semiconductor light sources or a light source are used as radiation sources of light modules, or a module, made (including) using the technology “chip on board” or monochrome light using a remote phosphor deposited to the inside of the screen.

As additional optics, to obtain the required curve of luminous intensity (KSS), longitudinal (extruded) optics is used, made in conjunction with a translucent screen.

Protective translucent screen is used corrugated, transparent, translucent, opaque, matte, diffuser, made by extrusion both with additional optics and without it from impact-resistant material - for example polycarbonate.

The profile is closed at the opposite ends by the side covers, with the fastening, as already indicated, to the central groove along the front wall with just one screw on the cover.

Effect: the simplest design of the lighting device with a minimum size across and a minimum weight.

List of drawings

The invention is illustrated by drawings in figures 1-12:

Figure 1 - lamp, a perspective view;

Figure 2 - lamp housing (profile), fragment, perspective view along the rear wall of the profile;

Figure 3 - lamp housing (profile), fragment, perspective view along the front wall of the profile;

Figure 4 - lamp, fragment, a perspective view of the rear wall of the profile;

5 is a lamp, fragment, a perspective view of a translucent screen;

6 is a lamp, fragment, a perspective view along the front wall of the profile, a translucent screen, conventionally not shown;

7 is a lamp, side view;

Fig. 8 is a lamp, a side view from the side of the pressure seal;

Fig.9 - lamp, cross section, without additional optics;

Figure 10 - lamp, cross section with additional optics;

11 - lamp, cross section with additional optics;

Fig - profile, cross section.

The list of positions indicated in the figures:

1. The case in the form of a heat sink profile;

1.1. Groove for fixing the lamp to external structures;

1.2. U-shaped groove for attaching side covers and light modules;

1.3. U-shaped symmetrical grooves for attaching a translucent screen;

2. The light module;

3. Translucent screen;

3.1. An element of additional optics of a translucent screen;

4. Power source;

5. Germanovod;

6. Side covers;

7. Screws.

The implementation of the invention

The device is as follows:

The light modules 2 are installed in the housing 1 in the U-shaped groove 1.2 using the screws 7. The power supply source (s) 4 is located inside the closed profile 1 contour with fixation on silicone glue, double-sided mounting tape or in another way. Translucent screen 3 is attached to the housing 1 along the U-shaped grooves 1.3. The housing 1 is closed by side covers 6 with each fixing one screw 7 in a U-shaped groove 1.2. The input of the power cable is carried out through one of the side covers 6 with a pressure seal 5. Suspension of the lamp, installation on the ceiling or wall is carried out in groove 1.1. The required KSS is provided by a combination of solid-state semiconductor light sources of light modules, or a module, and additional optics 3.1 on a translucent screen 3 or without it. In the case of a remote phosphor, the latter is applied to the inner surface of the screen, and the light sources are used in monochrome.

Claims (5)

1. A lamp containing a heat sink profile as its body with a rear, two side, front walls with the formation of a closed cavity with an arrangement on the rear wall on the outside of the groove for attachment to external structures; containing at least one power source; comprising at least one solid state semiconductor light source mounted on at least one circuit board; protective shockproof translucent screen in the form of a profile, fixed in symmetrical grooves; side covers with a sealed power input on one of them, characterized in that the housing is completely symmetrical with respect to the longitudinal plane with corrugated rear and side walls, while mounting a translucent screen, mounting the light module boards, and also mounting the side covers with screws to one and the same central groove in the heat sink profile is carried out directly along the front wall of the housing. 2. The lamp according to claim 1, characterized in that in order to obtain the desired luminous intensity curve, it is additionally equipped with longitudinal extruded optics, made in conjunction with a protective translucent screen. 3. The lamp according to claim 1, characterized in that the solid-state semiconductor light source is made using the technology "chip on the board." 4. The lamp according to claim 1, characterized in that solid-state semiconductor light sources of monochrome light are used, while the inner surface of the translucent screen is coated with a phosphor, as a result of which the monochrome light is converted to white. 5. A heat sink profile having a closed profile with a groove on the rear wall on the outside in the form of symmetrical L-shaped elements directed to each other for attachment to external structures, with symmetrical grooves for fastening a translucent screen, characterized in that the symmetrical grooves are arranged on the front wall contour in the form of U-shaped elements open outward, directed from each other and not extending beyond the profile cross-sectional dimension, also located along the front wall of the symmetrical no longitudinal plane of symmetry of the profile of the central U-shaped groove directed inwards closed loop, and in that the side and rear wall formed corrugated profile.

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