Various embodiments relate to a housing used for an illuminating apparatus and capable of preventing condensation of water vapor therein. In addition, various embodiments further relate to an illuminating apparatus having the housing of the above type.
An outdoor illuminating apparatus is usually provided with a waterproof and dustproof housing due to the characteristics of the environment where the illuminating apparatus is used. A lighting assembly such as LED lighting assembly of the illuminating apparatus is placed in a corresponding assembling cavity of the housing, while the temperature in the assembling cavity will be quite high since the lighting assembly, especially the LED lighting assembly, generates a lot of heat in operation. When the temperature outside is very low, the humid air in the assembling cavity will be condensed so as to be gathered together on a transparent cover of the housing, affecting output of light. What's more important is the condensed humid air might rust and corrode metal parts in the housing, and even short-circuits the LED lighting assembly.
Therefore, the present disclosure provides a housing for an illuminating apparatus. The housing can prevent the phenomenon of humidity condensation therein while it can be waterproof and dustproof. In addition, the present disclosure further provides an illuminating apparatus having the housing of the above type.
Various embodiments provide a housing for an illuminating apparatus through the following solution. The housing includes: two housing portions assembled together and a transparent cover, the two housing portions and the transparent cover jointly defining a cavity, wherein a transparent separator is provided in the cavity for separating the cavity into an assembling cavity and a isolated cavity sealed with respect to each other, and the assembling cavity is configured to mount a lighting assembly of the illuminating apparatus, and wherein the isolated cavity is defined jointly by the transparent cover and the separator. In various embodiments, heat generated by the elements in the assembling cavity will not be easily transferred to an area of the transparent cover by separating the assembling cavity from the isolated cavity, thus reducing a difference in temperature between both sides of the transparent cover, so as to reduce a risk of humidity condensation in the housing to a great extent, prevent rust or corrosion of metal parts in the housing, and even avoid short circuit of the lighting assembly.
Preferably, the isolated cavity is vacuum. The vacuum isolated cavity can well insulate heat, which further prevents the heat from the assembling cavity from being transferred to the transparent cover, and the risk of humidity condensation in the isolated cavity will be absolutely eliminated since there is no air in the isolated cavity.
According to various embodiments, a plurality of lenses are arranged at one side of the separator facing the assembling cavity and each of them is assigned corresponding to one lighting assembly of the illuminating apparatus. In various embodiments, the illuminating apparatus preferably is an LED illuminating apparatus. Each lighting assembly, i.e., each LED chip, of the LED illuminating apparatus is provided with an individual lens, which is favorable for the lens to processing independently the light from the LED chip, so as to realize an expected optical illuminating effec.
Preferably, the lenses and the separator are formed in one piece, which greatly reduces the number of parts in the housing, and relative locations between the lenses and the lighting assembly can be simply determined when the separator is mounted since the locations between the lenses and the separator are fixed, which prominently reduces the mounting difficulty.
According various embodiments, one side of the separator facing the assembling cavity is provided with a plurality of reflectors each corresponding to one lighting assembly of the illuminating apparatus. Such reflector also can adjust the light from the lighting assembly, especially the LED chip, so as to realize an expected optical illuminating effect.
According to various embodiments, one housing portion which is from the two housing portions and not mounted with the transparent cover is configured as a heat sink. To configure the heat sink as one housing portion is favorable to further reducing the number of parts of the housing. At the same time, since the heat sink itself is one portion of the housing, heat from the lighting assembly of the illuminating apparatus directly thermally connected with the heat sink can be directly discharged to the surrounding environment through the heat sink, which improves the thermal dissipating performance of the housing to a great extent.
According to various embodiments, the separator is formed in one piece with one housing portion that is from the housing portions and provided with the transparent cover, which reduces the number of parts of the housing, so that the housing is assembled completely when the two housing portions are assembled together, greatly reducing the assembling difficulty.
Preferably, the separator and the transparent cover are made from a glass or plastic, and of course, also can be made from other types of transparent materials.
Various embodiments further provide an illuminating apparatus through the following solution. The illuminating apparatus has the housing of the above type and is capable of effectively reducing the risk of humidity condensation therein.
In the drawings, like reference characters generally refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the disclosed embodiments. In the following description, various embodiments described with reference to the following drawings, in which:
The following detailed description refers to the accompanying drawing that show, by way of illustration, specific details and embodiments in which the disclosure may be practiced.
It further can be seen from
Besides, in a first embodiment of the present disclosure, a plurality of lenses 7 are arranged at one side of the separator 4 facing the assembling cavity 5 and each of them is assigned to one lighting assembly 9. In the present embodiment, the lenses 7 and the separator 4 are formed in one piece (see
While the disclosed embodiments have been particularly shown and described with reference to specific embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the disclosed embodiments as defined by the appended claims. The scope of the disclosed embodiments is thus indicated by the appended claims and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced.
1 housing
2
a housing portion
2
b housing portion
3 transparent cover
4 separator
5 assembling cavity
6 isolated cavity
7 lens
8 reflector
9 lighting assembly
10 printed circuit board
Number | Date | Country | Kind |
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201110261519.1 | Sep 2011 | CN | national |
The present application is a national stage entry according to 35 U.S.C. §371 of PCT application No.: PCT/EP2012/066944 filed on Aug. 31, 2012, which claims priority from Chinese application No.: 201110261519.1 filed on Sep. 5, 2011, and is incorporated herein by reference in its entirety.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/EP2012/066944 | 8/31/2012 | WO | 00 | 5/6/2014 |