RU2528175C1 - Light-emitting diode illumination device - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: light-emitting diode (LED) illumination device comprises two or more LED modules between which a connection element is placed. The housing of each module is provided with a link of a one-degree-of-freedom sliding pair, the second link of which is located on the connection element. To enable connection of the modules at an angle to each other, the connection element is made such that tangential planes to points on the outer surface of the connection element form a dihedral angle A, the value of which is selected based on an expression given in the description.

EFFECT: unification of the design of the housing of lamp modules, enabling modification of the illumination device during use, improved manufacturability and cheap production.

4 cl, 9 dwg

Description

Technical field

LED lighting device belongs to the field of lighting engineering and is intended for LED lighting equipment that is easily adaptable for various purposes of indoor and outdoor lighting.

State of the art

Known solutions that describe modular designs of lighting devices, including a first lighting module equipped with radiation sources, the end of which is provided with means for attaching an end part of a second lighting module, also having means for attaching a third module, adapted to connect the next module (US patent 2006050505, published March 9, 2010, IPC F21S 4/00; patent EP 1433997, IPC F21S 4/00, published June 30, 2004).

Known LED modular lighting device containing a base module mounted on a support and equipped with means of connection with an additional module, forming between themselves a rotational pair around the axis of the connection. The additional module, in turn, is also equipped with similar means of connection with the following module (patent KR 101027101, IPC F21V 21/116, published 05.04.2011).

The known design allows you to adapt the relative position of the modules of the lighting device using a locking mechanism, combined with means for connecting the modules to each other. Means of connecting the modules have a complex mounting structure containing many positioning and fixing elements for the modules, which increases the complexity of the assembly and maintenance of the fixtures, increases the number of components and, ultimately, affects the cost of the product

Known modular lamp containing a fixed base and additional modules equipped with radiation sources, means for connecting the modules to each other, made in the form of a translational pair, the links of which are located on the housing of the base and additional modules, and on the base module housing there is a guide link of the translational pair. As a means of preventing spontaneous movement of the links of the translational pair, an end cap is used, mounted on the module case (patent RU 112340, IPC F21S 4/00, published January 10, 2012).

In the international application PCT / RU 2012/000179 (date of international filing March 16, 2012), an LED lighting device is described, the radiator components of which are provided with links forming a splined connection and allowing the lighting device to be formed from fragments.

Patent RU 112340 is the closest in designation and design to the claimed solution and adopted as a prototype.

The technical result of the claimed solution is the unification of the design of the housing of the lamp modules, the possibility of modifying the lighting device during operation, improving the manufacturability of the design, reducing the cost of production.

Detailed Solution Description

The claimed solution can be characterized by the following set of essential features.

An LED lighting device comprising at least two LED modules, each of which is equipped with a radiation source, the housing of each of the modules is provided with a link of a single-movable translational pair, characterized in that at least one connecting element is provided between the housings of adjacent modules at least two reciprocal links of the translational pair, and the tangent planes to the points of the outer surface of the connecting element form a dihedral angle A, the value of which is selected from expressions:

0 <A <90, where:

A - dihedral angle, the planes of which are tangent to the outer surface of the connecting element, angular degree.

The value of the angle A is determined with an accuracy of tolerance on the measuring instruments.

As signs that develop and enhance the technical result, it should be indicated that:

- the connecting element has a length equal to the length of the module;

- the connecting element can be made hollow. This option of the connecting element allows to reduce material consumption;

- an important consequence of the choice of the dihedral angle A is the possibility of compiling a closed loop of LED modules;

- means for fixing the relative position of the links of the translational pair is made in the form of an end cap mounted on the module body.

Using a connecting element allows you to form the direction of the light flux during operation without dismantling the lamp.

The link profile of the translational pair can be made in the process of extrusion of the housing and the corresponding connecting element.

The angle of connection of the modules with each other is determined by the value of the angle A.

A brief description of the drawings.

LED lighting device is illustrated by the following graphic materials:

figure 1 shows a cross section of the housing of the lighting device, in which three LED modules are connected by connecting elements (for illustration, shown in different designs). The left module is closed by an end cap;

figure 2 shows a cross section of a variant of the lighting device, composed of three modules. The right and left connecting element are shown in different designs;

figure 3 shows a cross section of a third variant of the lighting device, composed of five identical modules;

figure 4, figure 5, 6 and 7 shows an enlarged image of the profile of some variants of the connecting elements, including the air channel, which can be used to connect the LED modules of the lighting device;

in Fig.8 and Fig.9 shows the connection of the modules in the analysis.

Detailed device description

The LED lighting device comprises modules 1, each of which is equipped with radiation sources (not shown). The central carrier module 1 is mounted on a supporting surface (not shown): it can be a lighting mast, a lamppost, a wall surface of a building. The modules are connected to each other by means of connecting elements 2 provided with protrusions 3, each of which is the first link of the translational pair, the second link 4 of which is made in the housing of the corresponding module. Cavities 5 are designed to install drivers.

The links that make up the translational pair in the simplest case are a T-shaped groove 4 in the module housing and a protrusion 3 of the corresponding profile on the connecting element 2. The dihedral angle A of the connecting element is thus close to zero.

In the case of connecting the modules at an angle, a wedge-shaped connecting element 2 is used (FIGS. 4 and 7), in which the dihedral angle A is selected taking into account the desired relative position of the radiating surfaces of the lighting device.

To connect the modules of the lighting device, a protrusion 3 of the connecting element 2 is directed into the groove 4 on the housing and translationally move it in the groove 4 along the module housing until the connecting element is finally positioned. Similarly, the next module of the device is connected to the connecting element. If necessary, the modules are removed in the reverse order.

The process of connecting the modules of the lighting device does not require additional fasteners and ensures the accuracy and reliability of their positioning. The means for fixing the mutual position of the links of the translational pair is the end cap 6 (Fig. 1), which is attached to the module body. Installation of the lighting device is simple and technological. Changing the configuration of the lighting device or updating the modules can be made during operation. In this case, the creation of a common flat light-emitting surface, either turned outward or directed to a limited surface, can easily be ensured.

Industrial Applicability

The embodiments of structural elements described in the description are not exhaustive. Equivalent in terms of the achieved constructive solutions may have various embodiments adapted to implement the claimed solution. Design details have technological forms that can be implemented using well-known means with automated control.

Claims (4)

1. LED lighting device containing at least two LED modules, each of which is equipped with a radiation source, the housing of each of the modules is equipped with a link of a single-movable translational pair, characterized in that at least one connecting element is installed between the housings of adjacent modules equipped with at least two reciprocal links of the translational pair, and the tangent planes to the points of the outer surface of the connecting element form a dihedral angle A, the value of which is selected of expression:
0 <A <90, where:
A - dihedral angle, the planes of which are tangent to the outer surface of the connecting element, angular degree. 2. The LED lighting device according to claim 1, characterized in that the connecting element has a length equal to the length of the module. 3. The LED lighting device according to claim 1, characterized in that the connecting element is composed of two or more parts. 4. The LED lighting device according to claim 1, characterized in that the connecting element is made hollow.

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