ES2301362B1 - LIGHTING DEVICE FOR CHRISTMAS TREES. - Google Patents

Abstract

Lighting device for trees Christmas.

This device comprises a control box (1) responsible for causing flashes or ignition sequences and switching off the lighting elements (31), said control box (1) at least two output phases (11, 12) and a common return (13), being connected between each phase (11, 12) and the common return (13) one or more circuits (3) in parallel. In each of the circuits (3) they are mounted, in series, an equal or similar number of lighting elements (31). The lighting elements (31) of each circuit (3) are distributed in two or more branches (32a, ... 32h), of different length and number of  lighting elements (31), which are arranged parallel and correlatively ordered according to its length.

Description

Lighting device for trees Christmas.

Object of the invention

The present invention relates to a Christmas tree lighting device, being said device of the type of which they comprise: cables of power supply, a plug or plug for connection to the mains and a control box and power supply responsible for causing flashes or ignition sequences and off of some lighting elements, these elements being of lighting connected in parallel branches in series.

Background of the invention

Decorative lights called "lights Christmas "consists of a series circuit of luminous elements such as light bulbs or micro bulbs that are They can be connected to the mains for operation. These devices are placed on the typical Christmas or fir tree to enhance its decorative appearance on these dates. But nevertheless, this installation is usually complicated for the user, since the lights must be placed by curling over the tree forming a ascending spiral or similar arrangement and it is difficult to cover The whole tree The end result is that the tree is lit by  uneven shape or several sets of lights are used, which It makes decoration more expensive. These lights may be connected to the network through a control box that is responsible for performing various lighting effects, such as switching off and on intermittence or an effect of intensity variation bright.

The German utility model is known DE20021477, which describes a lighting for tree Christmas comprising a bipolar trunk conductor cable connected to a power supply, such as a network transformer electric Said trunk driver is branched into a series of branches, which have luminous elements, such as bulbs for its operation, being able to be said branches secondary arranged around the tree forming floors or bands that facilitate its homogeneous arrangement. These branches are connect the trunk conductor through plugs or couplings  electric and hooks that close the loop.

The invention patent is also known. US2002080609 in which a lighting device is described Christmas comprising a two-conductor power cable that extends a certain length, one of its ends being connected to power supply. From this cable hang a series of Star-shaped light bulbs that are connected to both electrical conductors for operation.

The DE utility model is also known 29922310 in which a device for lighting is described Christmas tree decoration comprising a conductor cable trunk connected to the power grid and from which several Branches of lighting elements. These branches are of different length and number of luminous elements, thus being able also split into smaller secondary branches. With this device It is possible to wrap the tree more or less homogeneously.

Description of the invention

The lighting device for trees Christmas object of the present invention presents some technical particularities oriented to facilitate its placement on the tree to be decorated, so that the lighting elements remain distributed more or less regularly over the entire surface tree outside. In addition the device allows obtaining a greater number of lighting effects and the possibility of continue to function in part even though an element has melted luminous arranged in series.

In effect, the control box responsible for flashes and effects of light fading includes the minus two or more phases of electrical output and a common return. Between each phase and the common return are one or more parallel circuits, each circuit comprising the elements luminaires of the device, such as light bulbs or micro bulbs, by example. Indeed, in each circuit they are mounted on series an equal or similar number of lighting elements that result in an equivalent resistance or electrical charge between all of them.

The lighting elements of each of the circuits are distributed in two or more branches substantially parallel, of different length and with a number of elements of lighting proportional to the length of each of the branches.

This constitution allows all of the circuits form a succession of substantially parallel branches and correlatively ordered according to their length. The device like this constituted then presents a trunk mallet with the connections between the various branches and with the control box and the branches arranged in such a way that they can be placed on the tree circling its branches on floors or levels that are substantially parallel and according to the diameter of the tree at that height.

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In this way the device allows you to perform various lighting effects on some branches different from others, on and off sequences and various flashes. Also the failure of a bulb or microbombilla only affects the circuit in the that is installed, without affecting the rest of the device.

Brief description of the drawings

To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached herein descriptive a set of drawings in which, for illustrative purposes and not limiting, the following has been represented:

- Figure 1 shows a flat development of a exemplary embodiment of the lighting device for trees Christmas object of the invention.

- Figure 2 shows an elevation view of the lighting device of the previous figure, mounted on Use position on a Christmas tree.

- Figure 3 shows the electrical diagram of the device.

Detailed description of the drawings

In the exemplary embodiment shown in the Figure 1, the lighting device comprises a box of control (1) connectable to the power supply network by means of a cable and a plug (2), presenting this control box (1) two independent electrical phases (11, 12) of power and a common return terminal (13), being connected between the phases (11, 12) and the return (13) circuits (3) in parallel of luminous elements (31) arranged in series.

In one phase (11, 12) the circuits (3) present equal number of light elements (31), such as light bulbs or micro bulbs, arranged in series to form loads equivalent electrical. As depicted in Figure 3, Each circuit (3) consists of two branches (32a, ... 32h) of different length between which the elements are distributed lights (31) proportional to the length of said branches (32a, ... 32h).

The branches (32a, ... 32h) are arranged parallel and ordered according to its length from the deck (33) of conductors that join each of the branches (32a, ... 32h) with each other and with the phases (11, 12) and the common (13) at one end preferably. According to this distribution, they are alternated in the sequence the branches (32a, ... 32h) of the different phases (11, 12) and in opposition to its length the branches (32a, ... 32h) of the same circuit (3). In the example of figure 1 a device It comprises eight branches (32a, ... 32h) with two phases (11, 12), forming in a first phase (11) two circuits (3) with the branches (32a) and (32h) and branches (32c, ... 32f), while in the second phase (12) are circuits (3) the branches (32b) and (32g) and the branches (32d) and (32e).

Once nature is sufficiently described of the invention, as well as a preferred embodiment, for the appropriate purposes that the materials, form, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential features of the invention claimed in continuation.

Claims (3)

1. Lighting device for Christmas trees, the type of which have a control box (1) responsible for causing flashes or sequences of switching on and off the lighting elements (31) and which has a phase (11) and of an input return for connection to the mains or to a power supply; characterized in that the control box (1) comprises at least two output phases (11, 12) and a return common (13), being connected between each phase (11, 12) and the return common (13) one or more circuits (3) in parallel; and because in each of the circuits (3) an equal or similar number of lighting elements (31) are mounted in series. Device according to claim 1, characterized in that the lighting elements (31) of each of the circuits (3) are distributed in two or more branches (32a, ... 32h) substantially parallel, of different length and with a number of lighting elements (31) proportional to the length of each of the branches (32a, ... 32h). 3. Device, according to any preceding claim, characterized in that the set of circuits (3) form a succession of branches (32a, ... 32h) substantially parallel, correlatively arranged according to their length.