JP2011023227A - Light source unit and lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light source unit without a designability at a coupling part damaged, in one structured of a plurality of LED substrates coupled. <P>SOLUTION: In the light source unit 50 equipped with a plurality of LED substrates 401, each LED substrate 401 of the plurality of the LED substrate 401 includes a coupling site 402 physically coupled with another LED substrate 401, a non-coupling site 403 other than the coupling site 402, and a connector 10 for electrically connecting with other LED substrates 401 and installed at the non-coupling site 403. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a light source unit using an LED (light emitting diode) as a light source and a lighting fixture including the light source unit.

  As a method for electrically connecting the light source units, there is a technique for connecting the light source units in the longitudinal direction (Patent Document 1). Moreover, there exists a prior art regarding arrangement | positioning of the translucent cover to a light source unit (patent document 2).

Patent No. 4061479 JP 2008-166097 A

  Conventionally, when a substantially rectangular light source unit is connected in the longitudinal direction, since it is a structure that can be electrically connected by a physical connecting part, the electrical connection at the connecting part impairs the appearance beauty. In addition, there is a problem that it is difficult to make physical and electrical connections easily and reliably.

  Further, there is a design problem that a discontinuous gap is generated between the adjacent translucent covers when the light source unit is connected.

  The present invention has been made to solve the above-described problems, and includes an electrical connector for electrical connection to a side (long side portion) of a light source substrate, and a plurality of coupled connectors. One translucent cover is disposed on the light source substrate. Accordingly, it is possible to provide a light source unit capable of easily and reliably performing electrical connection between light source substrates without impairing the design, and eliminating the occurrence of a gap in the connecting portion of the translucent cover. With the goal.

  The light source unit according to the present invention is a light source unit including a plurality of light source units, wherein each light source unit of the plurality of light source units is connected to another light source unit and is connected to other light source units. It is an electrical connector for electrically connecting with a connection part and the said other light source part, Comprising: The electrical connector installed in the said non-connection part is provided, It is characterized by the above-mentioned.

  The light source unit according to the present invention is a light source unit including a plurality of light source units, and each light source unit of the plurality of light source units is connected to other light source units and connected to the other light source unit, and other than the connected sites. And an electrical connector for electrically connecting to the other light source unit, and an electrical connector installed at the non-connected site, so that the physical connection between the light source units (light source substrates) is provided. With respect to connection and electrical connection, there is an effect that it can be easily and reliably performed without impairing the design.

1 is a partially broken perspective view of a lighting fixture 100 according to Embodiment 1. FIG. 2 is a cross-sectional view of a main part of lighting apparatus 100 according to Embodiment 1. FIG. FIG. 3A is a partially broken plan view of a light source unit 50 according to Embodiment 1, FIG. 3A is a partially broken plan view of a unit light source unit 501a, and FIG. 3B is a diagram of three unit light source units 501a, 501b, It is a partially broken top view which shows the light source unit 50 to which 501c was connected. It is EE sectional drawing of FIG.3 (b), and is a figure which shows the cross section in the position of the connector 10 of the unit light source unit 501a. It is a figure which shows the variation (a) of the light source unit 50 which concerns on Embodiment 1, and (b). It is a figure which shows the variation of the connection system of LED board 401. FIG.

Embodiment 1 FIG.
FIG. 1 is a partially broken perspective view of a lighting apparatus 100 according to Embodiment 1. FIG. FIG. 2 is a cross-sectional view of a main part of the lighting fixture 100 according to the first embodiment. The whole structure of the lighting fixture 100 which concerns on Embodiment 1 is demonstrated using FIGS. 1-2.

  The lighting fixture 100 according to the present embodiment is a line-type lighting fixture. The luminaire 100 is a luminaire capable of linearly continuous irradiation because it has a line shape (straight shape, rod shape) that is long in the longitudinal direction and short in the lateral direction.

  The luminaire 100 is attached to an attachment surface such as a ceiling surface, for example. The mounting surface may be a floor surface, a wall surface, or the like. In FIG. 1, the luminaire 100 has a substantially inverted concave shape (substantially inverted U shape) in section, but for example, when attached to the ceiling surface, the lower side in FIG. 1 is the ceiling surface side. Hereinafter, the lower side of the drawing (that is, the side of the mounting surface) is referred to as the mounting surface side, and the upper side of the drawing is referred to as the irradiation direction side (the side in the direction of irradiation with the light source of the lighting fixture).

  The lighting fixture 100 includes a fixture body 4 and a light source unit 50. The instrument body 4 has a line shape that is long in the longitudinal direction and short in the lateral direction. That is, when the instrument body 4 is viewed from the irradiation direction side or from the mounting surface side, it forms an elongated, substantially rectangular shape. The light source unit 50 is configured by connecting a plurality of unit light source units 501 (501a, 501b) in the longitudinal direction. The light source unit 50 will be described later.

  The instrument body 4 has a substantially inverted concave shape in cross section. On the surface on the mounting surface side of the instrument main body 4, a main body concave portion 5 that is a portion where the instrument main body 4 is recessed inward is provided. The main body recess 5 is formed in a substantially linear shape in the longitudinal direction at a substantially central portion in the short direction of the surface on the mounting surface side of the instrument main body 4. The main body concave portion 5 is formed on the surface on the attachment surface side of the instrument main body 4 so as to protrude inward in a straight line shape in the long side direction. That is, a base (main body light source mounting portion 41) formed in a linear shape continuous in the longitudinal direction is formed at the approximate center in the lateral direction on the inner side of the mounting surface side of the instrument main body 4. That is, the main body concave portion 5 and the main body light source mounting portion 41 are in an integrated relationship.

  As shown in FIGS. 1 and 2, the instrument main body 4 includes attached surfaces 43 a and 43 b attached to the attachment surfaces on both sides of the main body recess 5. Side wall portions 7a and 7b are formed on both sides of the main body light source mounting portion 41 (main body concave portion 5). On both sides of the main body light source mounting portion 41 (main body concave portion 5), there are a main body space portion 42a that is a space formed by the side wall portion 7a, the mounted surface 43a, the main body side surface 45a, and the main body irradiation side surface 46a, and the side wall portion 7b. A main body space portion 42b that is a space formed by the mounted surface 43b, the main body side surface 45b, and the main body irradiation side surface 46b is formed. In the main body space portions 42a and 42b, the power supply terminal block 11, the power supply portion 12 provided with the lighting device and the like are accommodated. In the present embodiment, the power source terminal block 11, the power source unit 12, the electric wires 8a, 8b, 8c and the like are accommodated in the main body space portion 42a.

  The electric wire 8 a is an electric wire that connects the external power supply and the power supply terminal block 11. An electric wire hole 6 for allowing the electric wire 8a to be inserted outside is formed in the side wall portion 7a. The electric wire 8c connects the power supply terminal block 11 and the power supply unit 12.

  The power supply connector 13 is connected to the power supply unit 12 and the electric wire 8d, which is a connector for supplying power and signals to the light source unit 50. The connector 10 (an example of an electrical connector) is a connector for electrically connecting two light source boards described later, and is connected by an electric wire 8b.

  A light source unit mounting opening 47 is formed on the surface of the instrument body 4 on the irradiation direction side so as to have a predetermined width in the short side direction and open linearly in the long side direction. The light source unit mounting opening 47 is an opening for housing the light source unit 50.

  When the instrument main body 4 is attached to the attachment surface, a space is formed between the instrument main body 4 and the attachment surface between the main body recess 5 and the attachment surface. This space is referred to as a space portion 44. As shown in FIG. 2, the space 44 is continuously formed in the long side direction between the main body space 42 a and the main body space 42 b. The space 44 has a width L. The space part 44, for example, allows the wire 8a drawn from the main body space part 42a through the wire hole 6 to pass through, or promotes heat dissipation of the light source and the electrical components.

  The light source unit 50 includes a plurality of unit light source units 501 (501a, 501b). The unit light source unit 501 includes an LED substrate 401 (an example of a light source unit) and a frame body 3. Hereinafter, the unit light source unit 501a may be described as including the LED substrate 401a and the frame 3a, and the unit light source unit 501b may include the LED substrate 401b and the frame 3b. In addition, components included in other unit light source units 501 to be described later also indicate components corresponding to the unit light source units 501 by reference symbols (a, b, c, etc.).

  The LED substrate 401 (401a, 401b) is a substantially rectangular (line-shaped) substrate in which a plurality of LEDs 1 (light sources) are arranged in the long side direction. The plurality of LED substrates 401 (401a, 401b) constitute a connected LED substrate by connecting a plurality of unit light source units 501 in the long side direction. The LED board 401 (401a, 401b) is a substantially rectangular light source board having a short side part and a long side part, the short side part as another LED connection part, and the long side part as the non-connection part. A connection method of 401 (401a, 401b) will be described later.

  The frame body 3 has a substantially trapezoidal cross section (substantially concave shape, U shape). The frame body 3 includes a bottom portion 32 and side surfaces 31 on both sides of the bottom portion 32, and a surface facing the bottom portion 32 is open. The two side surfaces 31 are formed so as to spread from the bottom portion 32 to the opposing open surface. The inside of the side surface 31 is a reflector. The slope part (side surface 31) inside the frame 3 is a reflecting surface for reflecting light from the LED 1, and is painted white.

  An LED substrate 401 is disposed on the bottom 32 of the frame 3. As shown in FIG. 2, slide grooves 33 for sliding and attaching the LED substrate 401 to the frame 3 are provided in the vicinity of both sides of the bottom 32 of the frame 3. The LED substrate 401 is attached to the frame 3 by sliding both sides in the short side direction into the slide groove 33 of the bottom 32 of the frame 3.

  The translucent cover 9 is attached so as to close the open surface of the frame 3. The light source unit 50 shown in FIG. 1 includes two unit light source units 501a and 501b. In the translucent cover 9 according to the present embodiment, the light source unit 50 including the two unit light source units 501 a and 501 b is covered with the single translucent cover 9. As shown in FIG. 2, a cover slide groove for sliding the translucent cover 9 to be attached to the edges on both sides of the open surface of the frame 3 (that is, the end of the side surface 31 on the irradiation direction side). 35 is provided.

  That is, in the light source unit 50, a plurality of frame bodies 3 having a substantially trapezoidal cross section are connected to form an outer shell, and one translucent cover 9 is disposed on the open surface side of the frame body 3. The inside of the side surface 31 formed from the open surface to the bottom portion 32 and the bottom portion 32 are flat surfaces. An LED substrate 401 on which a plurality of light sources (LED1) are mounted is disposed on the inner surface side of the bottom portion 32, and the trapezoidal slope portion inner surface (reflecting plate) is white.

  The light source unit 50 is attached to the light source unit attachment opening 47 formed on the surface of the instrument body 4 on the irradiation direction side. The light source unit 50 is attached to the instrument main body 4 by bringing the bottom 32 into contact with the main body light source attachment part 41 of the instrument main body 4 and screwing or the like. The light source unit 50 is preferably attached so that the translucent cover 9 is positioned substantially on the same plane as the main body irradiation side surfaces 46a and 46b of the instrument body 4 when attached to the light source unit attachment opening 47. is there.

  The side wall portion 7a that is the side surface of the space portion 44 is provided with an electric wire hole 6 for inserting an electric wire or the like wired from an external power source. As shown in FIG. 1, the electric wire 8a inserted from the electric wire hole 6 is connected to the power terminal block 11 installed in the main body space portion 42a. Moreover, the electric wire 8c connects the power supply terminal block 11 and the power supply part 12 installed in the main body space part 42a. The electric wire 8 d connects the power supply unit 12 and the power supply connector 13 of the light source unit 50. These wires are accommodated in the main body space portion 42a.

  The LED substrate 401a and the LED substrate 401b need to be electrically connected together with the two LED substrates 401a and 401b being physically connected.

  LED board 401 (an example of a light source unit) according to the present embodiment includes a connection part that is a part physically connected to another LED board 401, a non-connection part that is a part other than the connection part, and other parts. It is a connector 10 (electrical connector) for electrically connecting with LED401, Comprising: The connector 10 installed in a non-connection part is provided, It is characterized by the above-mentioned. The two connectors 10 are connected by an electric wire 8b. A method of connecting the LED substrates 401a and 401b will be described later.

  3 is a partially broken plan view of the light source unit 50 according to Embodiment 1, FIG. 3 (a) is a partially broken plan view of the unit light source unit 501a, and FIG. 3 (b) is three unit light source units. It is a partially broken top view which shows the light source unit 50 to which 501a, 501b, 501c was connected. FIG. 4 is a cross-sectional view taken along the line E-E in FIG. 3B, showing a cross section of the unit light source unit 501 a at the position of the connector 10. A detailed configuration of the light source unit 50 including the unit light source unit 501 and the plurality of unit light source units 501a, 501b, and 501c will be described with reference to FIGS.

  As shown in FIGS. 3A and 3B, an LED substrate 401a (an example of a light source unit) is attached to the bottom 32a (not shown) of the unit light source unit 501a. The LED board 401a is provided with five LEDs 1a (light emitting diodes). The LED substrate 401a is a substantially rectangular (line-shaped) substrate in which a plurality of LEDs 1 (light sources) are arranged in the long side direction. The LED boards 401a, 401b, and 401c having the same configuration are connected in the long side direction to the connected LED boards.

  The LED substrate 401a is a substantially rectangular light source substrate having a short side portion and a long side portion. The LED board 401a is a connection part 402a physically connected to another LED board 401, a non-connection part 403a other than the connection part, and a connector 10a for electrically connecting to the other LED board 401. And a connector 10a installed in the non-connected portion 403a. In the LED board 401a, the short side part is a connection part 402a that is connected to another LED board 401, and the long side part is a non-connection part 403a other than the connection part 402a.

  Here, it is assumed that the LED boards 401b and 401c have the same configuration as the LED board 401a. In the following, regarding the constituent parts included in each unit light source unit 501 (501a, 501b, 501c) or each LED board 401 (401a, 401b, 401c), the corresponding LED board 401 or the corresponding one according to appendix (a, b, c). A unit light source unit 501 is shown.

  The LED substrate 401a includes a connector 10a at a predetermined position of the non-connected portion 403a (long side portion). The connector 10a is a connector for electrically connecting to the adjacent LED board 401. The connector 10a is installed at a predetermined position on both sides of the LED board 401a.

  As shown in FIG. 3B, a physical connection portion between the connection portion 402a of the LED substrate 401a and the connection portion 402b of the LED substrate 401b is defined as a connection portion C. A connector 10ab for electrical connection with the LED substrate 401b is provided in the vicinity of the connecting portion C of the non-connected portion 403a of the LED substrate 401a, and an LED substrate 401a is provided in the vicinity of the connecting portion C of the non-connected portion 403b of the LED substrate 401b. A connector 10ba for electrical connection is disposed. And connector 10ab and connector 10ba are connected by electric wire 8b. Thereby, in the physical connection part C, only physical connection is made, and physical connection with the LED board 401a and LED board 401b becomes easy. In addition, since the electrical connection between the LED substrates 401 is not performed by the connection portion C but by the non-connection portions 403a and 403b of the LED substrate, the external shape (shape / design) of the connection portion C is not affected. Absent. In other words, the end portion Ba of the LED substrate 401a and the end portion Ab of the LED substrate 401b are physically connected to each other simply by contacting, and are configured as if they were integrally formed.

  Five LEDs 1a are arranged side by side at a substantially uniform interval from the end Aa side to the end Ba side of the LED substrate 401a. That is, the interval between two adjacent LEDs 1a at four locations is substantially equal. Let L3 be the interval between two adjacent LEDs 1a. Further, the distance between the end Aa and the adjacent LED 1a is substantially equal to the distance between the end Ba and the adjacent LED 1a. The distance between the end Aa (end Ba) and the adjacent LED 1a is L2. The LED board 401b and the LED board 401c have the same configuration.

  Further, as shown in FIG. 3B, a connecting portion between the connecting portion 402a of the LED substrate 401a and the connecting portion 402b of the LED substrate 401b is defined as a connecting portion C. It is assumed that the distance between the LED 1a and the LED 1b adjacent to each other with the connecting portion C interposed is L4. A connection portion between the connection portion 402b of the LED substrate 401b and the connection portion 402c of the LED substrate 401c is referred to as a connection portion D. It is also assumed that the distance between the LED 1b and the LED 1c adjacent to each other with the connecting part D interposed therebetween is L4.

  At this time, it is preferable that the expression “L3≈L2 × 2≈L4” holds. That is, in the LED board 401, the distance L3 between adjacent LEDs 1 is substantially equal. Further, the distance L2 between the end portion (end portion Aa and end portion Ba) and the LED 1 is approximately one half of L3. Therefore, L4 which is twice L2 is approximately equal to L3.

  By arranging the LEDs 1 on the LED substrate 401 in this way, even when a predetermined number of LED substrates 401 are connected in the long side direction, the intervals between the adjacent LEDs 1 are substantially equal. Therefore, the light source unit 50 can irradiate light uniformly as a light source.

  FIG. 4 is a cross-sectional view taken along line EE in FIG. As shown in FIG. 4, a portion (side surface 31 a) corresponding to the connector 10 ab of the frame 3 a is provided with a frame notch 34 a (insertion hole) through which the connector 10 ab is inserted. The end located inside the frame 3a of the connector 10ab is a board connecting part 101ab connected to the LED board 401a, and the end located outside the frame 3a of the connector 10ab is a wire connecting part connected to the electric wire 8b. 102ab.

  The connector 10ab is inserted into the frame cutout 34a, so that the board connecting part 101ab is connected to the LED board 401a, and the electric wire connecting part 102ab is located outside the frame 3a and connected to the electric wire 8b. It becomes possible to connect to the connector 10ba of the LED board 401b (see FIG. 3B).

  FIG. 5 is a diagram showing variations (a) and (b) of the light source unit 50 according to the first embodiment. As described above, in FIG. 1, the light source unit 50 includes a plurality of unit light source units 501 a and 501 b, and the translucent cover 9 is formed by a single sheet covering the entire light source unit 50. In FIG. 5A, the unit light source unit 501a is composed of a frame 3a, an LED substrate 401a, and a translucent cover 9a, and the unit light source unit 501b is composed of the frame 3b, the LED substrate 401b, and the translucent cover 9b. It may be configured. By connecting the unit light source units 501a and 501b in the long side direction, a cover connecting portion 90 that is a connecting portion of the translucent cover 9 is formed at a connecting portion between the unit light source unit 501a and the unit light source unit 501b. By configuring in this way, the translucent cover 9 having the length of the unit light source unit 501 may be manufactured uniformly without manufacturing the translucent cover 9 having different lengths depending on the length of the instrument body 4. Therefore, the manufacturing cost can be suppressed.

  In FIG. 1, the frame 3 is formed by connecting the frame 3a of the unit light source unit 501a and the frame 3b of the unit light source unit 501b. In FIG.5 (b), the frame 3 shall be integrally formed. In the light source unit 50 shown in FIG. 5B, the frame body 3 and the translucent cover 9 are integrally formed, and the plurality of LED substrates 401 arranged inside are integrally formed as described above. It is configured as if Therefore, it is possible to provide the lighting fixture 100 with higher designability by the light source unit 50 shown in FIG.

  FIG. 6 is a diagram showing a variation of the connection method of the LED substrate 401. As shown in FIG. 6, unit light source units 501a and unit light source units 501b (referred to as connected LED boards 601a) physically connected in the long side direction, and unit light source units 501c physically connected in the long side direction. The unit light source unit 501d (referred to as a connected LED substrate 601b) can also be connected side by side in the short side direction. The connection method between the unit light source unit 501a and the unit light source unit 501b and the connection method between the unit light source unit 501c and the unit light source unit 501d are a method of connecting a plurality of unit light source units 501 in the long side direction. It is as follows. A connection method between the unit light source unit 501b and the unit light source unit 501c, that is, a method of electrically connecting in the short side direction will be described.

  The LED board 401b includes a connector 10bc for electrically connecting to the 401c on the side (non-connected portion 403b) on the LED board 401c side. As described above, the connector 10bc is inserted through the frame cutout 34bc of the frame 3b. Similarly, the LED board 401c includes a connector 10cb for electrically connecting to the LED board 401b on the side (non-connected portion 403c) on the LED board 401b side. As described above, the connector 10cb is inserted through the frame cutout 34bc of the frame 3c. The electric wire connecting portion 102bc of the connector 10bc and the electric wire connecting portion 102cb of the connector 10cb are connected by the electric wire 8b, and the LED substrate 401b and the LED substrate 401c are electrically connected. By forming the frame notches 34 for inserting the connector 10 in advance at two opposite positions (four positions in total) in the vicinity of the end of the frame 3, not only the connection in the long side direction but also the parallel direction It is possible to correspond to the connection of.

  According to the luminaire 100 according to the present embodiment, by arranging the frame 3, the connector 10, and the translucent cover 9 in this way, a light source with a large amount of light can be realized without sacrificing the design. it can.

  1, 1a, 1b, 1c LED, 3, 3a, 3b, 3c frame, 5 body recess, 6 wire hole, 7a, 7b side wall, 8, 8a, 8b, 8c, 8d wire, 4 device body, 9 through Optical cover 10, 10ab, 10ba, 10bc, 10cb, 10cd, 10dc connector, 11 power supply terminal block, 12 power supply section, 13 power supply connector, 31, 31a side face, 32 bottom part, 33 slide groove, 34, 34a, 34b, 34c Frame cutout portion, 35 Slide groove for cover, 41 Main body light source mounting portion, 42, 42a, 42b Main body space portion, 43a, 43b Mounted surface, 44 Space portion, 45a, 45b Main body side surface, 46a, 46b Main body irradiation side surface 47 Light source unit mounting opening, 50 Light source unit, 90 Cover connecting portion, 100 Lighting fixture, 101, 101ab Substrate contact Unit, 102, 102ab Electric wire connection part, 401, 401a, 401b, 401c, 401d LED substrate, 402a, 402b, 402c connection part, 403a, 403b, 403c non-connection part, 501, 501a, 501b, 501c, 501d Unit light source unit , 601a, 601b Linked LED substrate.

Claims (5)

In a light source unit including a plurality of light source units,
Each light source unit of the plurality of light source units is
A connection part physically connected to another light source unit, a non-connection part other than the connection part, and an electrical connector for electrically connecting to the other light source part, and installed in the non-connection part A light source unit. Each light source unit of the plurality of light source units is
A light source substrate having a substantially rectangular shape having a short side portion and a long side portion, wherein the short side portion is the connecting portion, the long side portion is the non-connecting portion, and the electrical connector is provided at a predetermined position of the long side portion. The light source unit according to claim 1. The light source unit further includes:
A frame having a substantially concave cross section for attaching the plurality of light source parts to the bottom,
The light source unit according to claim 2, wherein the frame body includes an insertion hole through which the electric connector is inserted in a side surface. The light source unit further includes:
The light source unit according to claim 3, further comprising a cover member that covers the plurality of light source units. An instrument body;
A lighting fixture comprising the light source unit according to claim 1.

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