JP2012181943A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture which is easy in attachment and detachment of a battery compared with a conventional one.SOLUTION: The lighting fixture is provided with a fixture body 1 having a housing recess 10, a lid 2 to open and close the housing recess 10, a battery 3, and a plurality of light-emitting diodes 4 which are supported by the lid 2 and are capable of lighting using the battery 3 as a power source. The battery 3 is supported by the lid 2, and is stored in a space between the inner face of the housing recess 10 and the lid 2 in a state of the lid 2 closed. When the fixture body 1 is fixed to a ceiling CE with the opening of the housing recess 10 facing downward, the lid 2 is located to the lower side than the fixture body 1 in an open condition, and if the battery 3 is supported by the lid 2 as above, detachment and attachment of the battery 3 is easier compared with the conventional example where the battery 3 is supported by the fixture body 1.

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, lighting fixtures that can turn on an electrical light source using a battery as a power source have been provided.

  As this type of lighting fixture, there is a lighting fixture that includes a fixture main body that is fixed to the ceiling and a lid that holds the light source and is attached to the fixture main body (see, for example, Patent Document 1).

JP 2009-218158 A

  In the conventional example, since the battery is held by the instrument body fixed to the ceiling, it is relatively difficult to attach and detach the battery.

  This invention is made | formed in view of the said reason, The objective is to provide the lighting fixture with which a battery is easy to attach or detach compared with a prior art example.

  The luminaire of the present invention is held by the lid, a fixture body that opens and closes the storage recess, a battery body, and a fixture body that has a storage recess and is fixed to the ceiling with the opening of the storage recess facing downward. A light source that can be turned on using the battery as a power source, the battery being held by the lid, and being stored in a space between the inner surface of the storage recess and the lid when the lid is closed. It is characterized by that.

  In this lighting fixture, the lid body is attached to the instrument body in such a manner that the lid body can be displaced with respect to the instrument body between a closed position for closing the storage recess and an open position for opening the storage recess. You may provide the connection means connected with respect.

  In this lighting fixture, the connecting means may be a hinge.

  Furthermore, in this lighting fixture, a battery connection for electrically connecting the light source driving portion and the battery, further comprising a light source driving portion that is held in the fixture main body in the housing recess and turns on the light source using the battery as a power source. At least one of the means and the light source connecting means for electrically connecting the light source driving unit and the light source may penetrate through the hinge.

  Alternatively, in the above luminaire, the connecting means may be capable of translating the lid body in the depth direction of the storage recess with respect to the instrument body.

  Moreover, in the above-described lighting fixture, it is desirable to include a holding unit that holds the lid in the open position.

  Furthermore, in the above-described lighting apparatus, the light source includes a plurality of light emitting diodes each mounted on a printed wiring board, and overlaps the battery when viewed from the depth direction of the housing recess when the lid is closed. The density of the light emitting diode in is preferably lower than the density of the light emitting diode in the printed wiring board.

  Further, in the above-described lighting apparatus, the lid body is made of a light source holding part that holds the light source, a battery holding part that holds the battery, and a material having higher thermal conductivity than the battery holding part. It is desirable to have a heat dissipating part interposed between the battery part and the battery holding part.

  According to the present invention, since the battery is held by the lid located below the instrument body in the opened state, the battery can be easily attached and detached as compared with the conventional example in which the battery is held by the instrument body. .

It is sectional drawing which shows embodiment of this invention. It is a bottom view which shows the state which the cover body closed in the same as the above. It is sectional drawing which shows the example of a change same as the above. It is sectional drawing which shows the principal part of the example of FIG. It is sectional drawing which shows another example of a change same as the above. It is a right view which shows the principal part of the example of FIG. It is sectional drawing which shows the principal part of another modified example same as the above. It is sectional drawing which shows the principal part of another example of a change same as the above.

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

  In the present embodiment, as shown in FIG. 1, an instrument main body 1 having a storage recess 10, a lid 2 that opens and closes the storage recess 10, a battery 3, and a battery 3 that is held by the lid 2 can be turned on. And five light emitting diodes 4 as light sources. As a material of the instrument body 1, for example, a metal or a synthetic resin can be used.

  In the housing recess 10, a case 5 that houses a light source driving unit (not shown) that generates electric power for lighting the light emitting diode 4 is held. The light source driving unit is electrically connected to the battery 3 and the commercial power source, and turns on the light source 4 with the power from the commercial power source during the period when power is supplied from the commercial power source. The light source 4 is turned on using as a power source. The light source driving unit as described above can be realized using a known DC power supply circuit.

  In addition, a secondary battery is used as the battery 3, and a charging unit (not shown) that charges the battery 3 by supplying power from a commercial power source is also housed in the case 5. The charging unit and the light source driving unit are each electrically connected to a commercial power source via a power source side electric wire 51 and electrically connected to the battery 3 via a battery side electric wire 52 as a battery connecting means. Moreover, the light source drive part is electrically connected to the light emitting diode 4 via the light source side electric wire 53 as a light source connection means. Each of the electric wires 51, 52, 53 may be used in plural, or may be a cable such as a flat cable having a plurality of core wires insulated from each other.

  Hereinafter, the upper, lower, left and right will be described with reference to FIG. In addition, the lid 2 and each component fixed to the lid 2 will be described with reference to the direction in which the storage recess 10 is closed.

  The instrument main body 1 includes a bottomed cylindrical main body portion 11 having an accommodation recess 10 opened on the lower surface, and an annular flange portion 12 projecting radially outward from the lower end of the main body portion 11.

  The instrument main body 1 is fixed in a state of being embedded in an embedding hole CE1 provided in the ceiling CE. The embedding hole CE1 has a circular shape whose inner diameter is larger than the outer diameter of the main body portion 11 and smaller than the outer diameter of the flange portion 12, for example, between the outer peripheral surface of the main body portion 11 and the inner peripheral surface of the embedding hole CE1. The gap generated in is covered with the flange 12 when viewed from below. The fixture body 1 is fixed to the ceiling CE by, for example, an appropriate fitting (not shown).

  The lid 2 has a frustoconical outer shape and a body 21 having a light source housing recess 20 opened on the lower surface, and is held in the light source housing recess 20 with the thickness direction directed in the vertical direction. Are mounted, and a cover 23 that is coupled to the body 21 and closes the light source housing recess 20. As means for fixing the printed wiring board 22 and the cover 23 to the body 21, means such as fitting, uneven engagement, and screwing can be used as appropriate. The material of the body 21 is desirably a material having a relatively high thermal conductivity, such as aluminum, from the viewpoint of heat dissipation.

  The five light emitting diodes 4 are arranged on the mounting surface (lower surface) of the printed wiring board 22 in a positional relationship between the apex of the square and the intersection of the diagonal lines of the square. Further, in the cover 23, circular windows 231 made of a material that allows the light of the light emitting diode 4 to pass therethrough are provided at five locations below the light emitting diode 4, as shown in FIG. . Appropriate irregularities are provided in each window portion 231 so that each window portion 231 functions as a lens that distributes the light of the light emitting diode 4.

  Further, the left end portion of the cover 23 is connected to the instrument body 1 via the hinge 6. As a result, the lid 2 opens the light source housing recess 20 by closing the light source housing recess 20 with the thickness direction of the printed wiring board 22 in the vertical direction and displacing the right end downward from the closed position. It can be rotated so as to displace the right end portion up and down relative to the instrument body 1 between the open position and the open position. The hinge 6 has, for example, a cylindrical shape with the axial direction oriented in the front-rear direction and is fixed to the instrument main body 1, and a cylindrical shape with the axial direction oriented in the front-rear direction, and is fixed to the cover 23. It is comprised with the cylinder side axial rod which penetrates both a cover side cylinder and a main body side cylinder and a lid side cylinder.

  Further, a locking piece 71 is held at the right end portion of the collar portion 12 of the instrument main body 1 so as to be movable in parallel in the left-right direction which is the radial direction with respect to the instrument main body 1. A return spring 72 made of a compression coil spring is interposed between the right surface of the locking piece 71 and the flange portion 12. That is, when closing the lid 2 as shown by the arrow A1 in FIG. 1, the lid 2 is closed while pushing the locking piece 71 rightward against the spring force of the return spring 72, and then the locking is performed. Release the force on the piece 71. Then, the locking piece 71 is returned by the spring force of the return spring 72 and the left end portion of the locking piece 71 is positioned below the right end portion of the lid body 2. Here, opening of the lid 2 (that is, downward displacement of the right end portion of the lid 2) is prohibited by the locking piece 71. When the lid 2 is opened, the locking piece 71 may be pushed rightward again against the spring force of the return spring 72.

  The battery 3 is held by the lid 2 and is housed in a space between the inner surface of the housing recess 10 and the lid 2 when the lid 2 is closed.

  Specifically, the battery 3 is fixed to the upper surface of the body 21 of the lid 2. As means for fixing the battery 3 to the body 21, for example, fitting, concave-convex engagement, screwing, and the like are conceivable.

  According to the above configuration, since the battery 3 is held by the lid 2 positioned below the instrument body 1 in the state where the lid 2 is opened, compared to the case where the battery 3 is held by the instrument body 1, The battery 3 can be easily attached and detached.

  Here, even if the lid 2 has a structure that can be separated from the instrument main body 1, the above-described effect can be obtained. However, when the light source driving unit is connected to the battery 3 or the light source 4 via the electric wires 52 and 53 as described above, the lid is more likely to be coupled to the instrument body 1 even when the lid 2 is open. This is desirable because mechanical stress such as tensile force is hardly applied to the electric wires 52 and 53 when the body 2 is opened.

  In addition, you may provide the holding means which hold | maintains the cover body 2 in an open position. Specifically, for example, as shown in FIG. 3, a locking portion 13 as a holding means that hooks and locks the left end portion of the lid body 2 in the open position is provided in the instrument body. In the example of FIG. 3, the body 21 of the lid 2 is connected to the hinge 6 at the upper left end. In addition, the locking portion 13 protrudes from the left end portion of the collar portion 12 to the lower right, and is engaged by elastic deformation below the lower left end portion of the body 21 of the lid body 2 in the open position to the closed position. The rotation of the lid 2 is prohibited. If the said structure is employ | adopted, since the attitude | position of the cover body 2 in an open position will be stabilized compared with the case where a holding means is not provided, the attachment or detachment of the battery 3 will become easier.

  As shown in FIG. 4, at least one of the battery-side electric wire 52 and the light source-side electric wire 53 (only the light source-side electric wire 53 in FIG. 4) may penetrate the hinge 6. Specifically, for example, a groove (not shown) through which the power supply side electric wire 52 and the light source side electric wire 53 are inserted is provided in one or both of the main body side cylinder and the lid side cylinder constituting the hinge 6. If this configuration is adopted, the electric wire 53 passed through the hinge 6 becomes easier to adhere to the instrument body 1 and the lid 2 than the electric wire 52 not passed through the hinge 6. Since it becomes difficult for the user to come into contact, disconnection due to mechanical stress applied to the electric wire 53 is less likely to occur. In the above case, in order to facilitate the connection between the electric wire 53 passed through the hinge 6 and the light source driving unit, the case 5 housing the light source driving unit is connected to the hinge 6 in the instrument body 1 (FIG. 4). It is desirable to be fixed to the left wall.

  Furthermore, the connection means for connecting the instrument body 1 and the lid 2 is not limited to the hinge 6, and two connection mechanisms 8 as shown in FIGS. 5 and 6 may be used. One connection mechanism 8 is provided at each of the left and right ends of the lid 2, and each connection mechanism 8 has two main body side arms 81 connected to the instrument main body 1 and each main body side arm 81. The lid side arm 82 is coupled to the lid body 2 while being coupled. In the instrument main body 1, two columnar shaft convex portions 14 each having an axial direction directed in the left-right direction are juxtaposed on the left and right inner surfaces of the storage recess 10, respectively. Each axial convex part 14 is connected with the instrument main body 1 by penetrating right and left. Further, each main body side arm 81 is connected to the connecting portion 811 through which the shaft convex portion 14 penetrates and the inner end in the front-rear direction (left-right direction in FIG. 6) of the connecting portion 811 and has a long ring shape. The guide portion 812 is provided. In each coupling mechanism 8, two guided projections 821 penetrating left and right through one guide portion 812 are provided on the upper end portion of the lid-side arm 82 so as to protrude outward in the left-right direction. Yes. That is, each of the guided projections 821 is displaced up and down in the guide portion 812, so that the lid body 2 can be translated in the vertical direction (that is, the depth direction of the storage recess 10) with respect to the instrument body 1. Yes. The upper end (closed position) of the movable range of the lid 2 with respect to the instrument body 1 is such that the upper surface of the body 21 is located above the lower end of the instrument body 1 (that is, the battery 3 is completely in the housing recess 10 of the instrument body 1). To the extent that it can be stored in). The lower end (open position) of the movable range of the lid 2 relative to the instrument body 1 is such that the upper end of the battery 3 is positioned below the lower end of the instrument body 1. In the above case, since the lid 2 is supported by the coupling mechanism 8 at the lower end (open position) of the movable range with respect to the instrument body 1, the position of the lid 2 is stabilized, so the coupling mechanism 8 also serves as a holding means. It will be.

  By the way, when the lid 2 is opened and closed by rotation with respect to the instrument body 1 as shown in FIG. 1, the lid 2 can be opened and closed in a state where the battery 3 is fixed to the lid 2. The larger the projecting dimension of the battery 3 is, the larger the opening of the housing recess 10 of the instrument body 1 must be in the right direction in FIG. On the other hand, as shown in FIGS. 5 and 6, when the lid 2 is opened and closed by parallel movement in the depth direction of the housing recess 10 with respect to the instrument body 1, the battery 3 above the lid 2. Even if the projecting dimension of is large, it is not necessary to enlarge the opening of the housing recess 10.

  Here, in order to suppress the deterioration of the battery 3, it is desirable to suppress the temperature rise of the battery 3 as low as possible. In the example of FIG. 5, the lid body 2 holds the battery 3 in a battery holder 24 made of a material having a lower thermal conductivity than the body 21 and fixed to the upper surface of the body 21. That is, in the example of FIG. 5, the printed wiring board 22 is a light source holding part, and is interposed between the printed wiring board 22 and the battery holding part 24 and has a higher thermal conductivity than the battery holding part 24. The body 21 is a heat dissipating part. If the said structure is employ | adopted, the temperature rise of the battery 3 by the heat | fever of the light emitting diode 4 can be suppressed compared with the case where the battery 3 directly contacts the body 21 which is a heat radiating part, and the printed wiring board 22 which is a light source holding part. .

  Further, the light emitting diode 4 in a range overlapping with the battery 3 when viewed from the vertical direction (that is, the depth direction of the housing recess 10) with the lid 2 closed so that the battery 3 is not easily affected by the heat of the light emitting diode 4. The density (number per unit area) is desirably lower than the density of the light emitting diodes 4 in the printed wiring board 22. Here, the density of the light emitting diodes 4 in the printed wiring board 22 refers to a value obtained by dividing the total number of the light emitting diodes 4 mounted on the printed wiring board 22 by the area of the mounting surface (lower surface) of the printed wiring board 22. Furthermore, as shown in FIG. 7, it is desirable that the battery 3 is disposed so as not to overlap the light emitting diode 4 when viewed from the vertical direction that is the depth direction of the housing recess 10 of the instrument body 1. In the example of FIG. 7, a heat sink 25 made of a material having a specific heat higher than that of air is interposed between the printed wiring board 22 and the body 21.

  Further, as shown in FIG. 8, heat radiating fins 211 that increase the surface area and increase the thermal efficiency may be provided on the body 21 of the lid 2 or the like.

DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Cover body 3 Battery 4 Light emitting diode (light source)
6 Hinge (connection means)
8 Connection mechanism (connection means, holding means)
10 Storage recess 13 Locking part (holding means)
21 Body (heat dissipation part)
22 Printed wiring board (light source holder)
24 battery holding part 52 battery side electric wire (battery connection means)
53 Light source side wire (light source connection means)
CE ceiling

Claims (8)

An instrument body which has a storage recess and is fixed to the ceiling with the opening of the storage recess facing downward;
A lid that opens and closes the storage recess;
Battery,
A light source that is held by the lid and can be turned on using the battery as a power source;
The said battery is hold | maintained at the said cover body, and when the said cover body is closed, it is accommodated in the space between the inner surface of the said storage recessed part, and the said cover body.   Connection for connecting the lid to the instrument body in such a manner that the lid can be displaced relative to the instrument body between a closed position for closing the storage recess and an open position for opening the accommodation recess. The lighting apparatus according to claim 1, further comprising means.   The lighting apparatus according to claim 2, wherein the connecting means is a hinge. A light source driving unit for turning on the light source by using the battery as a power source held in the instrument body in the storage recess;
At least one of battery connection means for electrically connecting the light source drive section and the battery and light source connection means for electrically connecting the light source drive section and the light source passes through the hinge. The lighting fixture according to claim 3.   The lighting device according to claim 2, wherein the connecting means is configured to allow the lid body to be translated in the depth direction of the storage recess with respect to the device main body.   The lighting fixture according to any one of claims 2 to 5, further comprising holding means for holding the lid in an open position. Each of the light sources comprises a plurality of light emitting diodes mounted on a printed wiring board,
The density of the light emitting diodes in a range overlapping the battery when viewed from the depth direction of the housing recess when the lid is closed is lower than the density of the light emitting diodes in the printed wiring board. The lighting fixture of any one of claim | item 1 -6.   The lid is made of a light source holding part that holds the light source, a battery holding part that holds the battery, and a material having a higher thermal conductivity than the battery holding part, and the light source holding part and the battery holding part. The lighting apparatus according to claim 1, further comprising a heat dissipating unit interposed therebetween.

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