JP5294438B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture installed on a mounting surface using a straight tube type LED lamp having an LED as a light source.

2. Description of the Related Art Conventionally, there has been known a lighting fixture in which straight tube fluorescent lamps are attached to lamp sockets arranged at both ends in a longitudinal direction (see, for example, Patent Document 1).
The luminaire described in Patent Literature 1 can irradiate the floor surface, which is an irradiation target, by emitting light radially from a straight tube fluorescent lamp.

Japanese Unexamined Patent Publication No. 2007-213968 (FIG. 1, claim 1)

As shown in FIG. 6, the lighting apparatus 100 described in Patent Document 1 includes a reflector 101 that is inclined with respect to the mounting surface 1, and a socket 103 to which a fluorescent lamp 102 is electrically connected is mounted. It is mounted at right angles to the surface 1.
Therefore, the lighting fixture 100 described in Patent Document 1 can radiate light emitted radially from the fluorescent lamp 102 by the reflecting plate 101 and irradiate it with a large amount of light toward the floor surface, which is an irradiation target.
By the way, with the recent development of LED technology, lighting fixtures equipped with straight tube LED lamps incorporating LEDs have been proposed from the viewpoint of energy saving and the like. The LED emits direct light mainly because of its high light directivity due to its structure.
As shown in FIG. 7, a conventional lighting fixture 110 equipped with such a straight tube type LED lamp includes a reflector 111 that is inclined with respect to the mounting surface 1 and is electrically connected to a socket 112. The irradiation range of the straight tube LED lamp 113 toward the irradiation target is 1/2 to 2/3 with respect to the entire circumference.
However, in such a conventional lighting fixture 110, since the optical axis A110 of the LED 114 is orthogonal to the mounting surface 1, the LED substrate 115 on which the LED 114 is mounted is not arranged in parallel to the reflector 111. .
Therefore, such a conventional lighting fixture 110 cannot acquire the spread of the light to the side because the light directed to the reflector 111 is reduced.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a luminaire that can acquire a lateral spread.

The lighting fixture according to the present invention includes a fixture main body attached to a mounting surface and an LED substrate on which a plurality of LEDs are mounted along the longitudinal direction of the fixture main body, and is arranged along the longitudinal direction of the fixture main body. A pair of straight tube type LED lamps and a pair of inclined reflecting surfaces having a cross-sectional shape in an inverted mountain shape when viewed from the floor surface side, and the device between the device body and the pair of straight tube type LED lamps A reflector having a pair of inclined reflecting surfaces disposed along the longitudinal direction of the main body, a pair of power supply side sockets attached to one end of the instrument body, and a pair attached to the other end of the instrument body The pair of power supply side sockets and the pair of ground side sockets at both ends in the longitudinal direction of the instrument body so as to protrude from the pair of inclined reflecting surfaces to the floor surface side. Attached In the pair of straight tube type LED lamps, the surface of the LED substrate on which the LED is mounted is parallel to the corresponding inclined reflection surface, and is opposite to the surface on which the LED is mounted. face, attached, et al is in the socket so as to face the inclined reflective surfaces, said pair of ground-side socket and the pair of power supply-side socket is disposed perpendicular to the pair of inclined reflective surfaces, the LED is An optical axis is arranged in a direction orthogonal to the inclined reflecting surface, and the lowermost position of the LED is not protruded from the lowermost position of the reflector .

  It is preferable that the power terminal block is attached to the central portion in the longitudinal direction of the instrument body, and the power block is attached closer to the power supply side socket than the central portion in the longitudinal direction of the instrument body.

  According to the lighting fixture concerning this invention, there exists an effect that the breadth to the side can be acquired.

The external appearance perspective view seen from diagonally downward of the lighting fixture of 1st Embodiment which concerns on this invention The disassembled perspective view seen from diagonally downward of the lighting fixture of 1st Embodiment which concerns on this invention The partially broken bottom view of the lighting fixture of 1st Embodiment which concerns on this invention The vertical sectional view of the lighting fixture of a 1st embodiment concerning the present invention. The vertical sectional view of the lighting fixture of a 2nd embodiment concerning the present invention. Vertical sectional view of a conventional lighting fixture Vertical sectional view of a conventional lighting fixture different from FIG.

Hereinafter, the lighting fixture of several embodiment which concerns on this invention is demonstrated with reference to drawings.
(First embodiment)
As shown in FIG. 1, the lighting fixture 10 according to the first embodiment of the present invention includes a fixture body 11, a pair of power supply side sockets 12 attached to one end of the fixture body 11, and the other end of the fixture body 11. A pair of ground side sockets 13 attached to the pair, a pair of straight side LED lamps 14 that are electrically connected to the pair of power supply side sockets 12 and the pair of ground side sockets 13 and mechanically attached thereto, The base light is provided on the mounting surface 1 with a reflecting plate 15 disposed above the tube LED lamp 14.

2 and 3, the instrument body 11 is formed by bending a thin metal plate member, and a power terminal block 16 and a power block 17 are attached to the lower surface.
A pair of power supply side sockets 12 are attached to one end of the appliance main body 11 via one bracket 18, and in the same manner as one end, the other end is connected to the pair of ground sides via the other bracket 18. A socket 13 is attached.

  The straight tube type LED lamp 14 includes an LED unit 22 having an LED substrate 21 in which a plurality of LEDs 20 are mounted in the longitudinal direction of the instrument body 11 in a glass tube 19 having a substantially circular cross section. The straight tube type LED lamp 14 has a pair of power supply side terminals 23 at one end of the glass tube 19 and a single ground side terminal 24 at the other end of the glass tube 19.

  The instrument main body 11 has a power supply terminal block 16 attached to the center, and a power supply block 17 attached to the power supply side socket 12 side of the power supply terminal block 16. The power supply terminal block 16 is connected to the external wiring 2 drawn from the external circuit on the mounting surface 1 side and to the power supply block 17. The power supply block 17 is connected to the ground wire 3 drawn from an external circuit on the mounting surface 1 side.

The power supply block 17 is connected to the power supply side socket 12, and the ground side socket 13 is connected to the ground of the instrument body 11 and the like. Therefore, the power supply side terminal 23 included in the straight tube type LED lamp 14 is connected to the power supply side socket 12, and the ground side terminal 24 included in the straight tube type LED lamp 14 is connected to the ground side socket 13, whereby the LED substrate 21. A direct current is supplied to a printed circuit (not shown), and the LED 20 emits light.
The instrument body 11 has a pair of bolt holes 25 and a pair of wood screw holes 26 arranged outside the pair of bolt holes 25 on the outside in the longitudinal direction of the power terminal block 16 and the power block 17. After the bolt 4 installed on the mounting surface 1 is inserted into the bolt hole 25, the washer 5 is externally inserted into the bolt 4 placed on the lower surface of the instrument body 11. Then, the instrument body 11 is attached to the attachment surface 1 by screwing the nut 6 into the bolt 4.

  The reflector plate 15 is formed of a thin metal plate member in the same manner as the appliance body 11 and has an inverted mountain-shaped cross-sectional shape as viewed from the floor side so as to cover the outside of the appliance body 11. The reflection plate 15 has a pair of inclined reflecting surfaces 27 that are inclined corresponding to the pair of power supply side sockets 12 and the pair of ground side sockets 13.

As shown in FIG. 4, the pair of power supply side sockets 12 and the pair of ground side sockets 13 are arranged orthogonal to the pair of inclined reflecting surfaces 27. Therefore, the optical axis A1 of the LED 20 of the pair of straight tube type LED lamps 14 attached to the pair of power supply side sockets 12 and the pair of ground side sockets 13 is arranged orthogonal to the inclined reflecting surface 27 of the reflecting plate 15. .
Therefore, when the straight tube type LED lamp 14 is turned on, the light emitted upward from the LED 20 of the straight tube type LED lamp 14 is reflected by the inclined reflecting surface 27 and travels to the side. Can be controlled.
The reflector 15 may have an inverted valley-shaped cross-sectional view as viewed from the floor side so as to cover the outer side of the instrument body 11. Of course, also in this case, the pair of power supply side sockets 12 and the pair of pair It has a pair of inclined reflecting surfaces which incline corresponding to the earth side socket 13.

In the reflecting plate 15, the range from the lowest end position B <b> 1 to the highest end position B <b> 2 of the inclined reflecting surface 27 is set within the range of direct light from the LED 20 of the straight tube type LED lamp 14.
Therefore, when the straight tube type LED lamp 14 is turned on, the direct light from the LED 20 of the straight tube type LED lamp 14 is reflected in the range between the lowermost position B1 and the uppermost position B2 of the inclined reflecting surface 27. The direct light from the LED 20 can be effectively used to control the efficient light distribution with lateral spread.

Here, in the reflector 15, the LED 20 of the straight tube type LED lamp 14 attached to the power supply side socket 12 and the earth side socket 13 arranged orthogonal to the inclined reflection surface 27 has from the attachment surface 1 to the lowest end position C1. The length dimension L1 is set such that the lowermost end position B1 of the inclined reflecting surface 27 is smaller than the length dimension L2 protruding from the mounting surface 1, so that the LED 20 is not protruded downward from the inclined reflecting surface 27. Is arranged.
Therefore, when the straight tube LED lamp 14 is turned on, the light emitted from the LED 20 of one straight tube LED lamp 14 to the side exceeds the lowermost position B1 of the inclined reflecting surface 27 and the other straight tube LED. Since the light is not emitted toward the lamp 14, the efficiency can be improved without wasting light.

  As described above, according to the luminaire 10 of the first embodiment, the LED 20 of the straight tube type LED lamp 14 has the optical axis A1 disposed in a direction orthogonal to the inclined reflecting surface 27. When the tube-type LED lamp 14 is turned on, light emitted upward from the LED 20 of the straight-tube LED lamp 14 is reflected by the inclined reflecting surface 27 and emitted toward the side, thereby spreading light distribution. Can be controlled.

  Moreover, according to the lighting fixture 10 of 1st Embodiment, since LED20 of the straight tube | pipe type LED lamp 14 is arrange | positioned in the position which does not protrude below from the inclination reflective surface 27, the straight tube | pipe type LED lamp 14 of FIG. When the light is lit, the light emitted from the LED 20 of one straight tube LED lamp 14 to the side is not emitted toward the other straight tube LED lamp 14 beyond the lowermost position B1 of the inclined reflecting surface 27. The efficiency can be improved without wasting light.

  And according to the lighting fixture 10 of 1st Embodiment, the range from the lowest end position B1 of the inclination reflective surface 27 in the reflecting plate 15 to the uppermost end position B2 is the range of the direct light from LED20 of the straight tube | pipe type LED lamp 14. FIG. Therefore, when the straight tube LED lamp 14 is lit, direct light from the LED 20 of the straight tube LED lamp 14 is between the lowermost position B1 and the uppermost position B2 of the inclined reflecting surface 27. By reflecting in the range, it is possible to effectively use the direct light from the LED 20 to control the efficient light distribution with lateral spread.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
Note that, in the following second embodiment, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, or the description is simplified. Omitted.

  As shown in FIG. 5, in the lighting fixture 50 according to the second embodiment of the present invention, the direction of the LED substrate 21 is parallel to the inclined reflecting surface 27 when the pair of straight tube LED lamps 14 are attached. A pair of power supply side sockets 51 that can be set to Specifically, in the straight tube type LED lamp 14, the LED substrate 21 is disposed in parallel to the pair of power supply side terminals 23 arranged in parallel. A power supply side terminal receiver (not shown) that is built in the power supply side socket 51 and electrically connected to the power supply side terminal 23 is arranged in parallel to the inclined reflecting surface 27. Thereby, the straight tube type LED lamp 14 is attached to the power supply side socket 51, whereby the LED substrate 21 of the straight tube type LED lamp 14 can be set parallel to the inclined reflection surface 27.

  According to the lighting apparatus 50 of the second embodiment, the power supply side socket 51 causes the LED 20 of the straight tube type LED lamp 14 to be disposed in a direction orthogonal to the inclined reflecting surface 27, so When the tube-type LED lamp 14 is turned on, light emitted upward from the LED 20 of the straight-tube LED lamp 14 is reflected by the inclined reflecting surface 27 and emitted toward the side, thereby spreading light distribution. Can be controlled.

  In addition, in the lighting fixture of this invention, LED, LED board, LED unit, etc. are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 1 Mounting surface 10,50 Lighting fixture 11 Appliance main body 14 Straight tube type LED lamp 20 LED
27 Inclined reflective surface (reflective surface)

Claims (2)

An instrument body attached to the mounting surface;
A pair of straight tube type LED lamps, each of which includes an LED substrate on which a plurality of LEDs are mounted along the longitudinal direction of the instrument body, and is disposed along the longitudinal direction of the instrument body;
A pair of inclined reflecting surfaces having a cross-sectional shape of an inverted mountain shape when viewed from the floor surface side, and a pair of along the longitudinal direction of the instrument body between the instrument body and the pair of straight tube LED lamps A reflector on which the inclined reflecting surface is disposed;
A pair of power supply side sockets attached to one end of the instrument body; a pair of ground side sockets attached to the other end of the instrument body;
With
The pair of power supply side sockets and the pair of ground side sockets are attached to both ends in the longitudinal direction of the instrument body so as to protrude from the pair of inclined reflecting surfaces to the floor surface side,
The pair of straight tube type LED lamps are:
The surface of the LED substrate on which the LED is mounted is parallel to the corresponding inclined reflection surface, and the surface opposite to the surface on which the LED is mounted faces the inclined reflection surface. mounting et is in the socket,
The pair of ground side sockets and the pair of power supply side sockets are arranged orthogonal to the pair of inclined reflecting surfaces,
The LED has an optical axis arranged in a direction orthogonal to the inclined reflecting surface,
The lowermost position of said LED is not protruded from the lowermost position of the said reflecting plate, The lighting fixture characterized by the above-mentioned .   The power terminal block is attached to a central portion in the longitudinal direction of the instrument body, and the power block is attached closer to the power supply side socket than the central portion in the longitudinal direction of the instrument body. lighting equipment.

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