JP3121905U - Waterproof lighting equipment - Google Patents

Abstract

A waterproof illumination device capable of achieving excellent heat diffusion performance, a long service life, and high illuminance is provided.
A tubular housing 1 made of a heat conductive material having a housing space 10 and having a front end opening 11 and a rear end closing portion 12, a heat radiating plate 2, a circuit board 3 in thermal contact with the heat radiating plate 2, a light emitting diode 51, and the like. A plurality of lighting units 5 each having a condensing member 52; a lighting device having a drive unit 6 fixed in the housing 1 and adapted to be electrically connected to the circuit board 3 and an external power source; The transparent plate 8 disposed in front of the lighting unit 5, the annular cap 7 installed in the front end opening 11 and extending into the accommodation space 10, and a seal for liquid-sealing between the housing 1, the transparent plate 8 and the cap 7. Provided is a waterproof lighting device including a washer 9.
[Selection] Figure 1

Description

  The present invention relates to a lighting device, and more particularly to a waterproof lighting device.

  Conventional waterproof lighting devices for machining devices are equipped with fluorescent lamps. However, the fluorescent lamp has a short life due to its high heat generation and power consumption, and the light from the fluorescent lamp is not efficiently collected.

  Accordingly, an object of the present invention is to provide a waterproof illumination device that has excellent heat diffusion performance and a longer service life and can achieve high brightness.

  As means for solving the above-mentioned problems, the water-resistant lighting device of the present invention is a housing in which a housing space is formed, and is positioned on the opposite side of the front end opening in the axial direction of the front end opening and the housing. A tubular housing formed of a heat conductive material having a rear end closing portion, and a lighting device disposed in a housing space of the housing, the first housing being adjacent to the front end opening of the housing. A heat dissipating plate having an installation surface facing the front end opening of the housing, a circuit board in thermal contact with the installation surface of the heat dissipating plate, a light emitting diode installed on the circuit board, and installed on the circuit board A plurality of lighting units each having a condensing member disposed around the light emitting diode, and fixedly disposed in the housing, and disposed on the circuit board. The lighting device having a drive unit that is electrically connected and suitable for electrical connection to an external power source for activation of a light emitting diode of the lighting unit, and disposed in the housing in front of the lighting unit A transparent plate, an annular cap that is installed in a front end opening of the housing and extends into the accommodation space, and is disposed between the housing, the transparent plate, and the cap; and the housing, the transparent plate, and the cap And a sealing washer in contact with each other to establish a liquid seal.

  It is preferable to further include a cellular lattice plate disposed between the lighting unit and the transparent plate in the housing.

  The housing may have an annular outer surface on which a grip is formed.

  According to the present invention, the heat generated by the light emitting diode 51 can be diffused by the presence of the heat radiating plate 2 and the thermally conductive housing 1.

  Also, the use of the high performance light emitting diode 25 having a lifetime of about 100,000 hours allows the lighting device of the present invention to have a longer lifetime compared to the conventional lighting device described above.

  Furthermore, the presence of the condensing lens 522 and the grating plate 53 enables the lighting device to achieve high luminance illuminance.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings.

  As shown in FIGS. 1 to 3, a preferred embodiment of the lighting device according to the present invention includes a tubular housing 1, a lighting device, a transparent plate 8, an annular lid 7 and a seal washer 9.

  The housing 1 is formed of a thermally conductive material, and a housing space 10 is formed. The front end opening 11 and a closed rear end closing portion that is opposite to the front end opening 11 in the axial direction (A) of the housing 1. 12. In the present embodiment, the housing 1 includes a tubular body 14 and a rear wall coupled to the rear end closing portion of the tubular body 14. The tubular body 14 has a front end portion 141, a rear end portion 142 having an inner diameter smaller than the front end portion 141, and an intermediate shoulder 143 that connects the front end portion 141 and the rear end portion 142 to each other. The front end portion 141 of the tubular body 14 has an annular inner surface 113 in which three annular engagement grooves 16 are formed that are spaced apart and aligned in the axial direction (A). The three C-shaped positioning rings 40, 41, 42 are engaged with the annular engagement grooves 16, respectively. The rear end portion 142 of the tubular body 14 has an inner surface on which a plurality of heat radiating ribs 17 extending in the axial direction (A) are formed. The tubular main body 14 of the housing 1 has an outer surface 111 on which a grip 18 and a plurality of heat radiating ribs 17 ′ extending in the axial direction (A) are formed. The adjustable support frame 19 is suitable for supporting the housing 1.

  The lighting device is disposed in the housing space 10 of the housing 1 and includes a heat radiation plate 2, a circuit board 3, a plurality of lighting units 5, and a drive unit 6.

  The heat radiating plate 2 is made of aluminum and is disposed adjacent to the front end opening 11 of the housing 1. In the present embodiment, the heat radiating plate 2 is disposed between the intermediate shoulder 143 of the tubular body 14 and the positioning ring 40, and is in contact with the intermediate shoulder 143 and the positioning ring 40. The heat dissipating plate 2 faces the front end opening 11 of the housing 1 and has an installation surface 20 in which a plurality of through holes 21 for heat dissipating purposes are formed.

  The circuit board 3 is installed on the installation surface 20 of the heat radiating plate 2 with a heat conductive adhesive so as to be in thermal contact. The circuit board 3 is provided with a printed wiring circuit thereon.

  Each lighting unit 5 is installed on the circuit board 3 and has a light emitting diode 51 such as a high performance light emitting diode, and a light collecting member 52 installed on the circuit board 3 and arranged around the light emitting diode 51. In the present embodiment, for each lighting unit 5, the condensing member 52 is disposed around the light emitting diode 51 and is fixedly attached to the circuit board 3 by the heat conductive adhesive 30 and attached to a hollow lens mounting base. Part 521. In addition, the condensing member 52 is installed on the lens mounting base 521, and a condensing lens 522 that covers the light emitting diode 51 in cooperation with the lens mounting base 521 for condensing the generated light. Have.

  The drive unit 6 is fixedly disposed in the housing 1 and is electrically coupled to the circuit board 3 by a lead wire passing through one of the through holes 21 of the heat radiating plate 2. The drive unit 6 is also adapted to be electrically connected to an external power source (not shown) by a power cord 35 to activate the light emitting diode 51 of the lighting unit 5 in a known manner.

  The switch 34 is installed on the rear wall of the housing 1 and is electrically connected to the drive unit 6 in order to control the supply of electric power.

The transparent plate 8 is disposed in front of the lighting unit 5 in the housing 1.
In the present embodiment, the transparent plate 8 is in contact with the positioning ring 42 as shown in FIG.

  The annular cap 7 is installed in the front end opening 11 of the housing 1 by a plurality of screws 73 and extends into the accommodation space 10.

  The cell (small compartment) lattice plate 53 is disposed between the lighting unit 5 and the transparent plate 8 in the housing 1. In the present embodiment, as shown in FIG. 2, the lattice plate 53 is disposed between the positioning rings 41 and 42. In the present embodiment, the cellular lattice plate 53 is a honeycomb lattice plate.

  The seal washer 9 is disposed between the housing 1, the transparent plate 8 and the cap 7, and is in contact with the housing 1, the transparent plate 8 and the cap 7 so as to establish a liquid seal therebetween.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention.

It is a disassembled perspective view which shows preferable embodiment of the illuminating device based on this invention. FIG. 2 is a partial cross-sectional schematic view of a preferred embodiment. 1 is a schematic front view of a preferred embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 10 Housing space 11 Front end opening part 12 Rear end closing part 2 Radiation plate 20 Installation surface 3 Circuit board 5 Lighting unit 51 Light emitting diode 52 Condensing member 6 Drive unit 7 Cap 8 Transparent plate 9 Seal washer A Axial direction

Claims (3)

A housing in which a housing space (10) is formed, a front end opening (11), and a rear end closure located on the opposite side of the front end opening (11) in the axial direction (A) of the housing (1) A tubular housing (1) formed of a thermally conductive material having a portion (12);
A lighting device disposed in a housing space (10) of the housing (1),
Heat dissipation having an installation surface (20) in the housing (1) adjacent to the front end opening (11) of the housing (1) and facing the front end opening (11) of the housing (1). Plate (2),
A circuit board (3) in thermal contact with the installation surface (20) of the heat radiating plate (2);
A light emitting diode (51) installed on the circuit board (3) and a light collecting member (52) installed on the circuit board (3) and arranged around the light emitting diode (51) are each A plurality of lighting units (5), and fixedly arranged in the housing (1), electrically connected to the circuit board (3), and activation of the light emitting diode (51) of the lighting unit (5) Drive unit (6) suitable for electrical connection to an external power source for
The lighting device comprising:
A transparent plate (8) disposed in front of the lighting unit (5) in the housing (1);
An annular cap (7) installed in the front end opening (11) of the housing (1) and extending into the accommodation space (10);
Arranged between the housing (1), the transparent plate (8) and the cap (7) to establish a liquid seal between the housing (1), the transparent plate (8) and the cap (7). A seal washer (9) in contact with
Waterproof lighting device with   The waterproof illumination device according to claim 1, further comprising a cellular grid plate (53) disposed between the lighting unit (5) and the transparent plate (8) in the housing (1).   The waterproof illumination device according to claim 1, wherein the housing (1) has an annular outer surface (111) in which a grip (18) is formed.

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