JP2008243502A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire capable of preventing the generation of dew condensation while securing waterproofness. <P>SOLUTION: This luminaire is provided with a board 1 with a light emitting diode 10 mounted thereto, and a translucent case 2 formed of glass having a rectangular parallelepiped shape elongated in the fore-and-aft direction, wherein a housing recessed part 20 for housing the board 1 is formed at the right surface. A transparent filling material 3 is filled in the housing recessed part 20, thereby the light emitting diode 10 is sealed, waterproofness is secured, and the generation of dew condensation in the housing recessed part 20 can be prevented at the same time. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lighting apparatus used particularly in a place where waterproofness is required.

  Conventionally, what sealed the space in which the light source was accommodated is provided as a lighting fixture used especially in places where waterproofing is required, such as a pool lighting (for example, refer to patent documents 1).

  As this type of lighting fixture, as shown in FIG. 4, a lamp La as a light source, a fixture body H provided with a storage recess H1 for storing the lamp La, and a fixture body H1 around the opening of the storage recess H1. And a ring-shaped cover C provided with a through-hole C1 through which light from the lamp La is passed, and a flat shape made of a material having translucency such as glass, for example, and a peripheral portion covering the instrument body H and the cover Some have a flat transparent cover G that is sandwiched between the cover C and closes the through hole C1 of the cover C. The translucent cover G is provided with a packing P made of a flexible material such as synthetic rubber and sandwiching the translucent cover G from both sides in the thickness direction over the entire circumference. And the gap between the translucent cover G and the instrument body H are closed by the packing P, and the housing recess H1 is sealed.

As a light source, it has been proposed to use a light emitting diode mounted on a substrate 1 as shown in FIG. 5 instead of the lamp La described above.
JP-A-8-96611

  However, in the conventional structure, the packing P is crushed by tightening a screw for screwing the cover C to the instrument main body H to close the gap. Since the distance between the light cover G and the light source changes slightly, it is difficult to prevent the occurrence of condensation by filling a light-transmitting filler between the light-transmitting cover G and the light source.

  This invention is made | formed in view of the said reason, The objective is to provide the lighting fixture which can prevent generation | occurrence | production of dew condensation, ensuring waterproofness.

  According to a first aspect of the present invention, there is provided a translucent case made of a translucent material and provided with a housing recess, a light emitting diode housed in the housing recess of the translucent case, and a translucent material made of translucent material. And a filling material that fills the housing recess and seals the light emitting diode.

  According to this invention, by filling the storage concave portion of the translucent case with the filler, it is possible to prevent the occurrence of condensation while ensuring the waterproof property.

  The invention of claim 2 is characterized in that, in the invention of claim 1, at least a portion exposed in a use state in the light transmitting case is made of tempered glass.

  According to this invention, mechanical strength improves compared with the case where the whole translucent case is comprised with normal glass.

  According to the first aspect of the present invention, it is possible to prevent the occurrence of dew condensation while ensuring waterproofness by the filling material provided in the translucent case and filled in the housing recess in which the light emitting diode is housed.

  In the invention of claim 2, the mechanical strength is improved as compared with the case where the entire translucent case is made of ordinary glass because the portion exposed in the use state in the translucent case is made of tempered glass. To do.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, the present embodiment is a lighting fixture that uses a surface-mounted light emitting diode 10 mounted on a substrate 1 as a light source. Hereinafter, the upper, lower, left and right directions are based on FIG. 1, and the lower left-upper right direction in FIG. 2 (the direction perpendicular to the plane of FIG. 1) is referred to as the front-rear direction. Note that these directions are merely for convenience of explanation, and do not necessarily match the actual installation direction.

  The present embodiment includes a translucent case 2 that is made of glass and has a rectangular parallelepiped shape that is long in the front-rear direction. The substrate 1 is housed in the housing recess 20 with the surface on which the light emitting diode 10 is mounted facing upward. Further, the storage recess 20 is filled with a transparent filler 3 such as silicon resin, for example, whereby the substrate 1 and the light emitting diode 10 are respectively sealed to ensure waterproofness and in the storage recess 20. Generation of condensation is prevented.

  Further, an outer shell 4 that houses the translucent case 2 is provided. The outer shell 4 is disposed on the lower side of the translucent case 2, the cover 6 is disposed on the upper side of the translucent case 2, and is disposed on the right side of the translucent case 2 to supply power to the light emitting diode 10. Two wire members 7 through which a wire (not shown) is inserted, and two wire members arranged side by side, which are screwed and fixed to the right side of the base 5 and the cover 6 respectively, press the wire member 7 against the translucent case 2 It consists of a pressing member 8. The base 5, the cover 6, and the pressing member 8 are each formed by punching and bending a metal plate, for example.

  More specifically, the base 5 has a rectangular main body 51 that covers the translucent case 2 when viewed from below, and protrudes upward from both front and rear ends of the main body 51 and faces the front and rear across the translucent case 2. Two end walls 55 covering the translucent case 2 when viewed from the outside in the front-rear direction, a side wall 53 projecting upward from the left end of the main body 51 and having a projection dimension smaller than the end wall 55, and an upper end of the side wall 53 And a coupling portion 54 projecting to the left.

  The cover 6 includes a rectangular main body 61 facing the upper surface of the translucent case 2, a side wall 63 projecting downward from the left end of the main body 61, and a coupling projecting leftward from the lower end of the side wall 63. And a positioning portion 65 projecting downward from the left end of the coupling portion 64. A rectangular window hole 61 a for allowing the light of the light emitting diode 10 to pass therethrough is provided in the main body 61 of the cover 6. The cover 6 is mechanically coupled to the base 5 by the coupling portion 64 being screwed to the coupling portion 54 of the base 5. Here, the projecting dimensions of the coupling portions 54 and 64 from the side walls 53 and 63 are substantially the same for the base 5 and the cover 6, and when the base 5 and the cover 6 are coupled to each other, the positioning of the cover 6 is performed. The cover 6 can be positioned with respect to the base 5 by bringing the right surface of the portion 65 into contact with the tip of the coupling portion 54 of the base.

  The wiring member 7 has a rectangular main body 71 that faces the left surface of the translucent case 2. In the central portion of the main body 71, electric wire insertion holes 71a through which electric wires for feeding power to the light emitting diode 10 are inserted are provided to the left and right. Further, the wiring member 7 has a cylindrical shape projecting from the right surface of the main body 71 and has a wire insertion portion 72 that communicates with the wire insertion hole 71a.

  Each pressing member 8 includes a U-shaped pressing portion 81 whose cross section is opened rightward, and two screwing portions 82 projecting outward from the right end of the pressing portion 82 in the vertical direction. The base 5 and the cover 6 have two screwing portions 52 and 62 that protrude inward in the vertical direction, two in a row from the right end of the main body portions 51 and 61, respectively. Each pressing member 8 has a lower screwing portion 82 screwed to the screwing portion 52 of the base 5 and an upper screwing portion 82 screwed to the screwing portion 62 of the cover 6. The base 5 and the cover 6 are attached. Here, when the base 5 and the cover 6 are coupled, the wire member 7 has a body portion 71 between the right side of the translucent case 2 and the left side of the screwed portions 52 and 62 of the base 5 and the cover 6. It is assembled to be sandwiched. When the screw for attaching the pressing member 8 is tightened, the main body portion 71 of the wiring member 7 is pressed from the right side by the pressing portion 81 of the pressing member 8 on both the front and rear sides of the wire insertion portion 72.

  Furthermore, this embodiment is made of a flexible material such as an elastomer, and is arranged so as to sandwich the translucent case 2 from the left and right, and is interposed between the inner surface of the outer shell 4 and the translucent case 2. Two packings 9 for preventing rattling are provided. Each of the packings 9 is formed in a bottomed rectangular tube shape that opens inward in the left-right direction and into which the translucent case 2 is fitted. In addition, each packing 9 is provided with a notch 91 in each of the upper and lower walls, thereby facilitating the work of deforming each packing 9 and assembling it to the translucent case 2. Furthermore, rectangular through holes 90 are provided in the left and right sides of the bottom surfaces of the packings 9, and power supply wires to the light emitting diodes 10 are connected through the through holes 90 provided in the right packing 9. It is introduced into the wire insertion hole 71 a of the member 7.

  According to the above configuration, the light emitting diode 10 is housed in the housing recess 20 provided in the translucent case 2, so that condensation is generated while the housing recess 20 is filled with the filler 3 to ensure waterproofness. Is prevented.

  Moreover, compared with the case where the instrument main body H is formed by drawing in the conventional example, this embodiment has a higher degree of freedom in shape, and can be formed into an elongated and compact shape.

  As shown in FIG. 3, the translucent case 2 has a rectangular parallelepiped shape that forms the upper surface exposed in use, and the light-emitting diode 10 mainly transmits light, and is joined to the translucent cover 2a. The translucent case 2 may be composed of two parts including the translucent base 2b and the translucent cover 2a may be made of tempered glass. If this structure is employ | adopted, mechanical strength will improve compared with the case where the whole translucent case 2 is formed with normal glass.

It is sectional drawing which shows embodiment of this invention. It is a disassembled perspective view which shows the same as the above. It is sectional drawing which shows another form same as the above. It is sectional drawing which shows a prior art example. It is sectional drawing which shows another prior art example.

Explanation of symbols

1 Substrate 2 Translucent Case 3 Filler 10 Light-Emitting Diode

Claims (2)

A translucent case made of a translucent material and provided with a storage recess;
A light emitting diode housed in the housing recess of the translucent case;
A lighting fixture comprising: a light-transmitting material, and a filling material that fills the housing recess of the light-transmitting case and seals the light-emitting diode.   The luminaire according to claim 1, wherein at least a portion exposed in a use state in the translucent case is made of tempered glass.

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