Double-sided LED light structure

Abstract

A double-sided LED light structure includes a casing that includes a base and a front chip arranged in the casing and electrically connected to the base and comprising an LED illuminant, wherein the casing has a rear end on which a rear chip that is electrically connected to the base and comprises an LED illuminant is mounted and a light-transmittable rear cover is set on and houses the rear chip. The front end of the light achieves concentrated illumination and the rear end achieves projection of supplemental light so that the LED light has a function of emitting light from two sides thereof to achieve a bettered three-dimensional illumination effect and also reduce the number of lights used.

Claims

1. A double-sided light-emitting diode (LED) light structure, comprising a casing that comprises a base and a front chip arranged in the casing and electrically connected to the base and comprising an LED illuminant, wherein the casing has a rear end on which a rear chip that is electrically connected to the base and comprises an LED illuminant is mounted such that the rear chip is spaced from the front chip in an axial direction and is located axially rearward of the front chip with the rear end of the casing located between the front chip and the rear chip, a light-transmittable rear cover being set on and housing the rear chip; wherein the rear chip is in the form of a ring or a ring having a side opening, which extends in a circumferential direction around the axial direction and is fit over and circumferentially extends around the base to mate the casing; and the rear cover is an annular cover extending in the circumferential direction and circumferentially surrounding the base.

2. The double-sided LED light structure according to claim 1, characterized in that the casing is made of metal and has an outer surface on which raised ribs are distributed.

3. The double-sided LED light structure according to claim 1, characterized in that the casing comprises a heat dissipation hood received therein and having an outer circumference on which heat dissipation fins are distributed, the front chip mating the heat dissipation hood and electrically connected to the base, the rear chip mating the rear end of the heat dissipation hood.

4. The double-sided LED light structure according to claim 3, characterized in that the heat dissipation hood is a metal cover corresponding to an internal cavity of the casing, hollow openings being formed between adjacent fins.

5. The double-sided LED light structure according to claim 4, characterized in that the heat dissipation hood is a metal cover corresponding to an internal cavity of the casing, hollow openings being formed between adjacent fins.

6. The double-sided LED light structure according to claim 3, characterized in that the casing is made of plastics and has an outer circumferential surface on which raised ribs are formed, the casing having an inner surface in which recesses are formed and respectively correspond to the raised ribs so as to correspond to the heat dissipation fins of the heat dissipation hood.

7. The double-sided LED light structure according to claim 1, characterized in that the casing has a front end to which a lens is mounted such that the lens is located frontward of the front chip in the axial direction.

8. The double-sided LED light structure according to claim 1, characterized in that the rear cover comprises a casing having a curved surface.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic view showing a conventional light-emitting diode (LED) light.

(2) FIG. 2 is an exploded view of the present invention.

(3) FIG. 3 is another exploded view of the present invention.

(4) FIG. 4 is a schematic view of the present invention.

(5) FIG. 5 is a cross-sectional view of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(6) The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

(7) As shown in FIGS. 2-5, the present invention discloses a double-sided light-emitting diode (LED) light structure, which comprises a casing 2 that comprises a base 1, a heat dissipation hood 3 arranged in the casing 2, a front chip 4 arranged in the heat dissipation hood 3 and electrically connected to the base 1 and comprising an LED illuminant 41, and a lens 5 arranged in front of the front chip 4. The features of the present invention are as follows:

(8) The casing 2 has a rear portion in which a rear chip 6 that is electrically connected to the base and comprises an LED illuminant 61 is mounted. The rear chip 6 is also located at a rear end of the heat dissipation hood 3 to mate with the heat dissipation hood 3. The rear chip is housed in a light-transmittable rear cover 7 set thereon. The rear cover 7 can be a casing having a curved surface to expand light projection range.

(9) The casing 2 is a horn like casing having an outer circumferential surface on which raised ribs 21 are distributed. The casing 2 has an inner surface in which recesses are formed and respectively correspond to the raised ribs 21. The casing 2 has a rear end mating the base 1 and defines a stepped surface 22 with respect to the base 1 for mating the rear chip 6.

(10) The heat dissipation hood 3 is a metal cover corresponding to an internal cavity of the casing 2 and having an outer circumference on which heat dissipation fins 31 are distributed. The fins 31 are respectively in alignment with the recesses of the raised ribs 21 of the casing 2 and hollow openings 32 are defined between adjacent fins 31. Such an arrangement helps dissipate heat from the light. The heat dissipation hood 3 has an internal cavity in which a stepped seat 33 is provided for mating the front chip 4.

(11) The lens 5 is fixedly mounted to a front end of the casing 2 and retains the heat dissipation hood 3 in position inside the casing 2.

(12) The rear chip 6 is in the form of a ring or a ring having a side opening, which is fit over the base 1 to mate and locate on the step surface 22 of the casing 2 so as to be in contact engagement with the rear end of the heat dissipation hood 3, allowing heat to be transmitted therefrom to the heat dissipation hood 3 for heat dissipation.

(13) The rear cover 7 is an annular cover that is exactly fit to and covers the rear chip 6 and is coupled to the casing 2.

(14) The casing 2 can be formed of a plastic piece and is provided for protection of the light and having a function of dust protection. The casing 2 may alternatively be made of metal and has an outer surface on which raised ribs are formed to also serve as heat dissipation fins so that there is no need to provide the heat dissipation hood 3 and the front chip 4 may be directly set in the casing 2.

(15) To assemble, the base 1 is fixed to the casing 2 and the heat dissipation hood 3 is mounted in the casing 2. The front chip 4 is mounted in the heat dissipation hood 3 and then, the lens 5 is fixed to the front end of the casing 2. The rear chip 6 and the rear cover 7 are then sequentially fit over the base 1 to be fixed to the rear end of the casing 2.

(16) In summary, the present invention provides a double-sided LED light, which has a front end that achieves concentrated illumination and a rear end that achieves projection of supplemental light so that the LED light has a function of emitting light from two sides thereof to achieve a bettered three-dimensional illumination effect.

(17) It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.

(18) While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the claims of the present invention.