JP4016567B2 - Lighting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device installed in a tunnel or the like.
[0002]
[Prior art]
For lighting devices such as tunnel lights, the lamp lighting power is normally supplied by a commercial AC power supply and the internal storage battery is charged. In the event of a power outage, the lighting power is obtained by the internal storage battery and the lamp is turned on as usual. There is a lighting device that is to be maintained.
[0003]
[Problems to be solved by the invention]
By the way, a sealed lead-acid battery is widely used as a storage battery used in this type of lighting device. However, since this storage battery generates hydrogen gas at the end of its life, it is necessary to take measures against it.
[0004]
The present invention has been made in view of the above points, and an object of the present invention is to provide an illumination device that can discharge gas generated from a storage battery to the outside.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the lamp and the battery for supplying the lighting power for the lamp are housed in a substantially sealed box, and the light from the lamp is stored in the box. In an illuminating device in which an exposure unit that discharges to the outside of the body is formed, a gas release pipe that houses the battery by providing a battery box isolated from the lamp in the box and communicates the inside of the battery box with the outside of the box The gas discharge pipe has one end protruding from the outer surface of the box, and is provided in the box, and a recess is formed over the entire circumference of the protruding portion of the gas discharge pipe. .
[0007]
According to a second aspect of the present invention, in the first aspect of the invention, the gas discharge pipe is provided in a plurality of boxes.
[0008]
According to a third aspect of the invention, there is provided the cover according to the first or second aspect of the invention, wherein the cover covers the protruding portion of the gas discharge pipe that protrudes outside the box and has an opening communicating with the opening of the protruding portion on the peripheral surface. Is provided outside the box.
[0009]
The invention of claim 4 is characterized in that, in the invention of claim 1 or 2, a filter for blocking dust such as smoke is attached to the gas discharge pipe .
[0010]
According to a fifth aspect of the invention, in any one of the first to fourth aspects of the invention, the gas discharge pipe is directed upward from the inside of the battery box toward the outside of the box.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0012]
(Embodiment 1)
FIG. 1 and FIG. 2 show this embodiment. A box 1 of the apparatus of this embodiment is composed of a body 2 and a front cover 3 that is attached to the opening of the body 2 in a substantially sealed state so as to be openable and closable. A lamp unit 7 including a reflecting mirror 4, lamp sockets 5, 5, a high-pressure sodium lamp 6 and the like is disposed on one side of the bottom of the body 2, and on the other side so as to line up with the lamp unit 7. During normal operation, electric power is supplied from a commercial AC power source. When the commercial AC power source is supplied, electric power is supplied from the storage battery 8 to turn on the high-pressure sodium lamp 6, and a charging circuit that charges the storage battery 8. A lighting block 10 comprising: a switching circuit block 12 for switching the power supplied to the lighting circuit upon detection of a power failure from a commercial AC power supply to the storage battery 8; and a battery box 9 containing the storage battery 8 Are you.
[0013]
The reflecting mirror 4 of the lamp unit 7 has a substantially U-shaped side cross-sectional shape, and both ends of the straight tube type high-pressure sodium lamp 6 are connected to the lamp sockets 5 and 5 exposed on both sides of the rear part. The high pressure sodium lamp 6 is connected between the lamp sockets 5 and 5. The reflecting mirror 4 is supported on the upper part of the bottom of the body 1 by being screwed to support legs 11, 11 erected on the bottom of the body 1 on both sides. The lamp sockets 5 and 5 are erected on the bottom of the body 1 behind the reflecting mirror 4, and the upper ends are fixed to the upper end of the support 13 facing the reflecting mirror 4.
[0014]
The storage battery 8 housed in the battery box 9 is a sealed lead storage battery.
[0015]
The battery box 9 containing the storage battery 8 is sealed with a cover 14 attached to the front opening. The lid 14 is fixed to the periphery of the opening of the battery box 9 with screws. The storage battery 8 in the battery box 9 has its upper and lower surfaces and right and left surfaces pressed by the pressing portions 15 provided on the inner surface of the battery box 9, and the pressing portion 15 provided on the inner surface of the lid body 14 and the bottom portion of the battery box 9. The front and back surfaces are pressed between the two.
[0016]
As described above, since the sealed lead-acid battery generates hydrogen gas at the end of its life, in this embodiment, the gas discharge pipe 16 constituting the gas discharge path is formed on one side of the upper and lower surfaces of the battery box 9 in FIG. , 16 are connected in communication with each other, and the other ends of these gas discharge pipes 16 are projected outward from the upper and side surfaces of the body 2 so that the hydrogen gas generated from the storage battery 8 can be discharged to the atmosphere. . In addition, the pipe 16 which makes the other end protrude from the side surface of the body 2 is bent in an L shape. Each of the gas discharge pipes 16 is fixed to the battery box 9 and the body 2 using a pipe fixing connector 17.
[0017]
As shown in FIG. 3, the pipe fixing connector 17 is formed by inserting a cylindrical body 18 having an external thread 18a on the outside into a hole 29 (see FIG. 4) formed in the wall surface of the battery box 9 (or body 2). The nuts 20a and 20b are screwed into the male screw 18a from the inside and outside of the box 9 (or body 2) and the wall surface of the battery box 9 (or body 2) is sandwiched between the nuts 20a and 20b, thereby the battery box 9 (or body 2). It is fixed to.
[0018]
The structure for fixing the gas discharge pipe 16 to the pipe fixing connector 17 is as shown in FIG.
[0019]
That is, when the gas discharge pipe 16 (or 17) is fixedly connected, the gas discharge pipe is inserted into the cylindrical body 18 so as to be inserted into the central through hole 19 of the cylindrical packing 21 having a tapered tip. 16 is inserted and the bag-shaped nut 22 is screwed, and the end surface of the packing 21 protruding outside the cylindrical body 18 is pressed by the inner surface of the inward flange 22a formed at the opening of the bag-shaped nut 22. The packing 21 is pushed into the cylindrical body 18, and by this pushing, the packing 21 is elastically deformed and the inner diameter of the central through hole 19 is reduced. As a result, the outer peripheral surface of the gas discharge pipe 16 inserted through the central through hole 19 is fastened and fixed to the inner surface of the central through hole 19. In FIG. 4, reference numeral 23 denotes a packing interposed between the nut 20b and the outer surface of the body 2, and a similar packing is also interposed between the outer surface of the battery box 9 and the nut 20b.
[0020]
4 shows a cross-sectional view of a portion where the other end of the gas discharge pipe 16 protrudes outward from the body 2, but the end of the gas discharge pipe 16 that is connected to the battery box 9 side is fixed. Since the configuration is also the same as the fixed configuration of FIG.
[0021]
In the present embodiment, the other end of the gas discharge pipe 16 protrudes from the outer surface of the body 2 as shown in FIG. 4 to prevent water from entering the pipe 16 along the surface of the body 2. .
[0022]
Further, the other end of the bag-like nut 22 is slightly protruded outwardly, and a recess 24 is formed between the inner peripheral surface of the inward flange 22a and the outer peripheral surface of the gas discharge pipe 16, and the bag-like nut 22 is formed. By forming a recess 24 ′ between the back surface of the nut 22 and the surface of the nut 20 b, even if water such as water leaking from the tunnel wall where the apparatus is installed is transmitted to the surface of the connector 17, these recess positions 24, 24 ′. Constitutes a water reservoir and an escape portion to prevent water from entering from the connector 17 site.
[0023]
Furthermore, the tip of the gas discharge pipe 16 protrudes outward from the surface of the bag-shaped nut 22, thereby preventing water adhering to the surface of the bag-shaped nut 22 from entering the gas discharge pipe 16. .
[0024]
Here, since each gas discharge pipe 16 has a tip opening exposed to the outside of the body 2, there is a possibility that water, smoke, or the like directly enters from the opening. Therefore, in the present embodiment, the cover 25 that covers the tip opening of each gas discharge pipe 16 is attached to the upper surface and the side surface of the corresponding body 2. As shown in FIG. 5, the cover 25 is composed of a circular portion 25a facing the front end opening of the gas discharge pipe 16 via a gap, and leg pieces 25b integrally connected from both sides of the circular portion 25a. And fixed to the body 2 by leg pieces 25b. Here, the opening between the leg pieces 25b, 25b constitutes an opening for releasing the hydrogen gas coming out of the opening at the tip of the gas discharge pipe 16 to the atmosphere.
[0025]
A glass window 26 constituting an exposure part for emitting light emitted from the high pressure sodium lamp 6 is hermetically formed on the front part of the front cover 3 attached to the body 2.
[0026]
The lighting apparatus of the present embodiment configured as described above is used by being attached to a ceiling surface (or wall surface) C of a tunnel B as a tunnel lamp A as shown in FIG. FIG. 7 is an enlarged perspective view showing the mounting state. As shown in FIG. 1, the box 1 composed of the body 2 and the front cover 3 is attached to the ceiling surface using the mounting brackets 27 provided on the top, bottom, left and right of the body 2. (Or wall surface) C is fixed. An electric wire is introduced into the box 1 from the outside through a conduit (not shown) connected to a conduit connecting portion 28 provided on the upper surface of the body 2. By mounting in this way, hydrogen gas lighter than air can be naturally discharged from the upward gas discharge pipe 16 to the atmosphere. Further, in the present embodiment, since two gas discharge pipes 16 are provided, even if one of them is closed, gas can be discharged on the other.
[0027]
(Embodiment 2)
In the first embodiment, the position at which the other end of the gas discharge pipe 16 protrudes outside the box 1 is the side surface and the upper surface. However, in the second embodiment, as shown in FIG. The part is made to penetrate the bottom of the body 2 from the bottom of the battery box 9 and protrude from the back of the body 2. A filter 30 is attached to the protruding tip of the gas discharge pipe 16 to prevent dust such as soot from entering the inside. As in the first embodiment, the gas discharge pipes 16 and 16 may be provided on the side surface and the upper surface, respectively. Of course, the filter 30 may be attached to the gas discharge pipes 16 and 16 of the first embodiment.
[0028]
Although the battery box 9 is provided in the first and second embodiments, a battery box may be formed by a partition plate in the box and the peripheral wall of the box.
[0029]
【The invention's effect】
According to the first aspect of the present invention, the lamp and the battery for supplying the lamp power supply are housed in a substantially sealed case, and an exposure unit for emitting light from the lamp to the outside of the case is provided in the case. In the formed lighting device, a battery box isolated from the lamp is provided in the box to store the battery, and a gas discharge pipe that communicates the inside of the battery box with the outside of the box is connected to the gas discharge pipe . One end protrudes from the outer surface of the box, and is provided in the box, and a recess is formed over the entire circumference of the protruding portion of the gas discharge pipe. can be released through the release pipe, therefor a box body lamp can be prevented from soiling a gas, in particular of safety you can avoid the risk of explosion by releasing to the atmosphere in the case of hydrogen gas Together there is an effect that it provides an illumination device have, there is an effect that it is possible to prevent the internal entry of water comes through the box body surface.
[0031]
In the invention of claim 2, in the invention of claim 1, since the plurality of gas releasing pipes are provided in the box, gas can be released by the other gas releasing pipe even if one gas releasing pipe is closed. There is an effect.
[0032]
According to a third aspect of the invention, there is provided the cover according to the first or second aspect of the invention, wherein the cover covers the protruding portion of the gas discharge pipe that protrudes outside the box and has an opening communicating with the opening of the protruding portion on the peripheral surface. Is provided outside the box, so that the opening of the direct gas discharge pipe cannot be seen from the outside, and there is an effect that direct entry of smoke or water can be prevented.
[0033]
In the invention of claim 4, in the invention of claim 1 or 2, since the filter for blocking dust such as soot is attached to the gas discharge pipe , dust such as soot enters the gas discharge pipe from the outside. There is an effect that can be prevented.
[0034]
In the invention of claim 5, in the invention of any one of claims 1 to 4, in the case of hydrogen gas lighter than air, the gas release pipe is directed upward from the inside of the battery box to the outside of the box. Has the effect that it can be released naturally.
[Brief description of the drawings]
1 is a partially cutaway front view of Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view of the first embodiment.
FIG. 3 is an enlarged front view in which the main part of the above is partially broken away.
FIG. 4 is an enlarged cross-sectional view of a connector part used in the above.
FIG. 5 is an enlarged perspective view of a cover used in the above.
FIG. 6 is an explanatory diagram of an example of installation work for the tunnel described above.
FIG. 7 is a partially omitted perspective view showing a mounting state of the above tunnel on a mounting surface.
FIG. 8 is a cross-sectional view in which a part of the second embodiment of the present invention can be omitted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Box 2 Body 3 Front cover 4 Reflector 5 Lamp socket 6 High pressure sodium lamp 7 Lamp part 8 Storage battery 9 Battery box 16 Gas discharge pipe

Claims (5)

In the illuminating device in which the lamp and the battery that supplies the lighting power for the lamp are housed in a substantially sealed box, and an exposure unit that emits light from the lamp to the outside of the box is formed in the box. A battery box isolated from the lamp is provided in the box to store the battery, and a gas discharge pipe for communicating the inside of the battery box with the outside of the box is connected to one end of the gas discharge pipe on the outer surface of the box. A lighting device characterized by being further protruded and provided in the box and having a recess formed over the entire periphery of the protruding portion of the gas discharge pipe . The lighting device according to claim 1, wherein a plurality of the gas discharge pipes are provided in a box. The cover provided to the outer surface of the casing is provided with a cover that covers the protruding portion of the gas discharge pipe that protrudes to the outside of the box and that has an opening communicating with the opening of the protruding portion. The lighting device according to 1 or 2. 3. The lighting device according to claim 1, wherein a filter for blocking dust such as soot is attached to the gas discharge pipe . The lighting device according to any one of claims 1 to 4, wherein the gas discharge pipe is directed upward from the inside of the battery box toward the outside of the box.

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