DC LED module having bridge rectifying and filtering function

A DC LED module having bridge rectifying and filtering function includes: an insulation seat, formed with a first surface and a second surface, wherein a concave area is formed on the first surface, and an opening and at least one buckle slot are formed at a substantially central portion of the concave area; a reflection cup, formed with at least one buckle structure for being buckled with the at least one buckle slot of the insulation seat; a circuit board, installed with an LED light source, wherein the circuit board is fastened on the second surface of the insulation seat, and the LED light source is aligned with the opening; and a bridge rectifying and filtering member, disposed at the exterior of the insulation seat and electrically coupled to a power input port of the circuit board for providing a DC voltage to the circuit board.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a direct current light emitting diode module (hereinafter referred as a DC LED module), especially to a DC LED module having bridge rectifying and filtering function.

2. Description of Related Art

A conventional DC LED module is often installed with a rectifying and filtering circuit in a housing for converting an AC voltage into a DC voltage so as to supply electric power to a LED load, wherein the rectifying and filtering circuit includes a bridge rectifier and a filtering capacitor. In addition, for being combined with a reflection cup, one surface of the housing is formed with a reflection cup accommodating concave surface.

However, because the installation of the bridge rectifier and the filtering capacitor would cause the depth of the reflection cup accommodating concave surface of the DC LED module to be increased, so a mechanical interference may be generated between a reflection cup having a larger dimension and the reflection cup accommodating concave surface thereby not allowing the reflection cup to be combined with the DC LED module.

In view of the above-mentioned disadvantages, a novel DC LED module shall be invented.

SUMMARY OF THE INVENTION

One primary objective of the present invention is to provide a DC LED module having bridge rectifying and filtering function, in which a bridge rectifying and filtering member is installed for converting an AC voltage into a DC voltage so as to drive a LED load.

Another objective of the present invention is to provide a DC LED module having bridge rectifying and filtering function, in which a bridge rectifying and filtering member is disposed at the exterior of an insulation seat thereby enabling the insulation seat to be formed in a small thickness, so the small-thickness insulation seat is able to accommodate a reflection cup having various dimensions

For achieving said objectives, the present invention provides a DC LED module having bridge rectifying and filtering function, which includes:an insulation seat, formed with a first surface and a second surface, wherein a concave area is formed on the first surface, and an opening and at least one buckle slot are formed at a substantially central portion of the concave area;a reflection cup, formed with at least one buckle structure for being buckled with the at least one buckle slot of the insulation seat;a circuit board, installed with an LED light source, wherein the circuit board is fastened on the second surface of the insulation seat, and the LED light source is aligned with the opening; anda bridge rectifying and filtering member, disposed at the exterior of the insulation seat and electrically coupled to a power input port of the circuit board for providing a DC voltage to the circuit board.

According to one embodiment of the present invention, the at least one buckle structure of the reflection cup is buckled with the at least one buckle slot of the insulation seat with a rotating means.

According to one embodiment of the present invention, the bridge rectifying and filtering member includes a bridge diode rectifier circuit and a filtering capacitor.

According to one embodiment of the present invention, the DC LED module having bridge rectifying and filtering function further includes a heat dissipation base which is in contact with one surface of the circuit board.

According to one embodiment of the present invention, the heat dissipation base is made of an aluminum substrate.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring toFIG. 1, which is an exploded view illustrating a DC LED module having bridge rectifying and filtering function according to one embodiment of the present invention. As shown inFIG. 1, the DC LED module having bridge rectifying and filtering function includes an insulation seat100, a circuit board110, a bridge rectifying and filtering member120, a reflection cup130and a heat dissipation base140.

The insulation seat100is formed with a first surface and a second surface, wherein a concave area101is formed on the first surface, and an opening101aand at least one buckle slot101bare formed at a substantially central portion of the concave area101.

The circuit board110is installed with an LED light source111, wherein the circuit board110is fastened on the second surface of the insulation seat100, and the LED light source111is able to be aligned with the opening101awhen the circuit board110is combined with the insulation seat100.

The bridge rectifying and filtering member120is electrically coupled to a power input port of the circuit board110for providing a DC voltage to the circuit board110. The bridge rectifying and filtering member120includes a bridge diode rectifier circuit and a filtering capacitor (not shown in figures), wherein the bridge diode rectifier circuit is served to convert an AC voltage into a full-wave rectifying voltage, and the filtering capacitor is served to filter the AC portion of the full-wave rectifying voltage.

The reflection cup130is served to define an illuminating direction and formed with at least one buckle structure131. The at least one buckle structure131is buckle with the at least one buckle slot101bof the insulation seat100with a rotating means, thereby enabling the reflection cup130to be combined with the insulation seat100. What shall be addressed is that the opened portion of the reflection cup130can be formed in different dimensions.

The heat dissipation base140can be made of an aluminum substrate and in contact with one surface of the circuit board110for providing a heat dissipation function.

Referring toFIG. 2andFIG. 3, whereinFIG. 2is a schematic view illustrating the assembly of the DC LED module having bridge rectifying and filtering function according to one embodiment of the present invention; andFIG. 3is a schematic view illustrating the assembly of the DC LED module having bridge rectifying and filtering function ofFIG. 2in which a reflection cup not being combined according to one embodiment of the present invention. As shown inFIG. 2, the bridge rectifying and filtering member120of the DC LED module having bridge rectifying and filtering function is disposed at the exterior of the insulation seat100for converting an AC voltage into a DC voltage. Because the bridge rectifying and filtering member120is disposed at the exterior of the insulation seat100, the height of the above-mentioned concave area101of the insulation seat100can still be minimized thereby preventing a mechanical interference from being generated between the reflection cup130and the above-mentioned concave area101, so the reflection cup130is enabled to be formed in various dimensions and still can be accommodated. Referring fromFIG. 4atoFIG. 4c, which are cross sectional views illustrating the DC LED module having bridge rectifying and filtering function being respectively combined with the reflection cup having three different dimensions.

Based on what has been disclosed above, advantages achieved by the present invention are as followings:1. The DC LED module having bridge rectifying and filtering function provided by the present invention is installed with the bridge rectifying and filtering member for converting an AC voltage into a DC voltage so as to drive a LED load.2. The DC LED module having bridge rectifying and filtering function provided by the present invention allows the bridge rectifying and filtering member to be disposed at the exterior of the insulation seat thereby enabling the insulation seat to be formed in a small thickness, so the small-thickness insulation seat is able to accommodate the reflection cup having various dimensions.