WO2019013251A1

WO2019013251A1 - Light source device

Info

Publication number: WO2019013251A1
Application number: PCT/JP2018/026182
Authority: WO
Inventors: 直輝谷藤; 克弘新井
Original assignee: アイリスオーヤマ株式会社
Priority date: 2017-07-14
Filing date: 2018-07-11
Publication date: 2019-01-17
Also published as: JP2019021475A

Abstract

The present invention provides a lightweight and thin light source device. This light source device (5) is used by being removably mounted to a lighting mounting apparatus, and is provided with a casing (55), at least one light source unit (50a), (50b) disposed within the casing (55), and a lighting circuit unit (51) that is disposed in the casing (55) and generates power for the light source unit (50a), (50b) from power supplied from an alternating-current commercial power source.

Description

Light source device

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a light source device removably mounted on a light fixture.

Patent Document 1 discloses a luminaire including a fixture installation member and a light source unit removably mounted on the fixture installation member. The light source unit includes a mounting member, a light source substrate, a light source cover, an end cover, and a lighting device, and these are integrated. The fixture mounting member has a mounting opening that can receive the mounting member of the light source unit and has the same size and shape as the mounting member. The light source unit is mounted on the tool mounting member by fitting the mounting member of the light source unit into the mounting opening of the tool mounting member.

The fixture installation member of Patent Document 1 corresponds to the "lighting fixture" in the specification, the light source unit corresponds to the "light source device" in the specification, and the lighting device corresponds to the "lighting circuit unit" in the specification. Do. Hereinafter, the terms of the specification will be used.

JP, 2017-63010, A

In the light source device described in Patent Document 1, the lighting circuit unit is housed in the metal casing on the back side of the light source substrate, so the entire light source device is heavy and large.

This invention is made in view of such a situation, Comprising: It aims at providing a lightweight and thin light source device.

In order to solve the above problems, a light source device according to an aspect of the present invention is a light source device that is detachably attached to a lighting fixture, comprising: a housing; and at least one light source unit disposed in the housing. And a lighting circuit unit disposed in the housing and generating power for the light source unit from the power supplied from an AC commercial power supply.

According to the present invention, since the lighting circuit unit is disposed in the housing, the lighting circuit unit does not need to be housed in the metal housing. Thereby, the light source device can be made light and thin.

It is a perspective view of a light source device concerning a 1st embodiment of the present invention, (a) shows the whole light source device, (b) shows a light source device in the state where a translucent cover was removed. It is a cross-sectional view of the light source device shown by FIG. It is a cross-sectional view of the light source device which concerns on the 1st modification of 1st Embodiment of this invention. It is a cross-sectional view of the light source device which concerns on the 2nd modification of 1st Embodiment of this invention. It is a cross-sectional view of the light source device which concerns on the 3rd modification of 1st Embodiment of this invention. It is a cross-sectional view of the light source device which concerns on the 4th modification of 1st Embodiment of this invention. It is a perspective view of a light source device concerning a 2nd embodiment of the present invention. It is an electrical circuit diagram of the light source device shown by FIG. It is an electric circuit diagram of the light source device concerning the 1st modification of a 2nd embodiment of the present invention. It is an electric circuit diagram of the light source device concerning the 2nd modification of a 2nd embodiment of the present invention. It is a perspective view of a light source device concerning the 3rd modification of a 2nd embodiment of the present invention. It is a perspective view of a light source device concerning the 4th modification of a 2nd embodiment of the present invention, (a) shows the state where a light source device was attached to a lighting fixture, (b) shows a lighting fixture alone. And (c) show the light source device alone. It is a perspective view of the operation tool installed in the lighting fixture of FIG.

<Overview>
A light source device according to an aspect of the present invention is a light source device detachably mounted to a light fixture, comprising: a housing; at least one light source unit disposed in the housing; and the housing; And a lighting circuit unit that generates power for the light source unit.
In the light source device according to another aspect, the at least one light source unit includes first and second elongated light source units, and the lighting circuit unit includes the first and second elongated light source units. Placed between Thus, the light source device can be miniaturized.
In the light source device according to another aspect, the lighting circuit unit supplies power supplied from the AC commercial power source to a lighting circuit in response to attachment of the housing to the lighting attachment, and the lighting attachment And an electronic component for interrupting the power supplied from the AC commercial power supply in response to the removal of the housing from the housing. This prevents the lighting circuit from being powered on during installation.
In the light source device according to another aspect, the electronic component is a switch having a push button, and the housing has a through hole for enabling pressing of the push button by the lighting fixture, and the push The button protrudes to the outside of the housing through the through hole. This makes it easy to implement devices that are not powered during installation.
In the light source device according to another aspect, the electronic component is a signal transmitted from a sensor that detects attachment of the housing to the light fixture, removal of the housing from the light fixture, or both. It is a switch controlled based on. This makes it easy to implement devices that are not powered during installation.
In the light source device according to another aspect, the electronic component is a connector that fits into a connector receiver mounted on the lighting fixture, and the connector is the connector in a state where the housing is attached to the lighting fixture. The connector receiving portion of the housing faces the connector receiving portion, and the inserting / removing direction of the connector with respect to the connector receiving portion substantially coincides with the mounting / removing direction of the housing with respect to the light fixture. This makes it easy to implement devices that are not powered during installation.

First Embodiment
As shown in FIGS. 1 (a) and 1 (b), the light source device 5 includes a long casing 55. The housing 55 has an outer peripheral wall, and at least a part of the outer peripheral wall exhibits light transmission. The housing 55 includes an elongated base 551 which forms a part of the outer peripheral wall, and an elongated translucent cover 552 which forms a part of the remaining outer peripheral wall. The base 551 holds the first light source unit 50a, the second light source unit 50b, and the lighting circuit unit 51 as described later. The translucent cover 552 is placed on the base 551 and fixed to the base 551 by a fixing tool (screw) 573. The housing 55 further includes two end covers 553 which each close the opening at both longitudinal ends of the housing 55.

The base 551 is made of, for example, metal or resin. As the metal, for example, aluminum, an aluminum alloy, or steel can be used. As the resin, for example, polycarbonate, epoxy, polyimide, polybutyl terephthalate can be used. The resin is preferably selected with emphasis on heat resistance. This is because the first light source unit 50a, the second light source unit 50b, and the lighting circuit unit 51 generate heat. Further, the reflection function may be imparted by using a resin mixed with a high reflection agent.

The translucent cover 552 is made of, for example, resin or glass. As the resin, for example, polycarbonate, acrylic and polypropylene can be used. The resin is preferably selected in consideration of heat resistance and light transmission. Furthermore, it is preferable to mix a diffusing agent to make it milky white or white and transparent.

The light source device 5 further includes a long first light source unit 50a and a long second light source unit 50b. The first light source unit 50a and the second light source unit 50b are disposed in the housing 55, respectively, along the longitudinal direction of the housing 55 and in a direction orthogonal to the longitudinal direction of the housing 55 (hereinafter, "width direction" ) Are spaced apart. The first light source unit 50 a includes an elongated LED substrate 501 and a plurality of LED elements 503. The plurality of LED elements 503 are arranged on the LED substrate 501 at regular intervals along the longitudinal direction of the LED substrate 501. The second light source unit 50b has the same structure as the first light source unit 50a.

Each LED element 503 of the first light source unit 50 a is at the same position as any of the LED elements 503 of the second light source unit 50 b with respect to the position of the housing 55 in the longitudinal direction. That is, the LED element 503 of the first light source unit 50 a and the LED element 503 of the second light source unit 50 b corresponding thereto are positioned on a virtual line parallel to the width direction of the housing 55. However, the present invention is not limited thereto, and each LED element 503 of the first light source unit 50a is at the same position as the middle position of any adjacent LED element 503 of the second light source unit 50b. You may do it. For example, even if the LED element 503 of the first light source unit 50a and the intermediate position of the adjacent LED element 503 of the second light source unit 50b corresponding thereto are positioned on a virtual line parallel to the width direction of the housing 55. Good. The light source device 5 may include at least one light source unit. The light source device 5 may include one light source unit, and may include three or more light source units.

The light source device 5 further includes a long lighting circuit unit 51. The lighting circuit unit 51 is disposed in the housing 55. Here, the lighting circuit unit 51 is disposed between the first light source unit 50 a and the second light source unit 50 b along the longitudinal direction of the housing 55. The lighting circuit unit 51 includes a long circuit board 514 and a plurality of electronic components 513 mounted on the circuit board 514. The circuit board 514 includes a wiring pattern for forming a lighting circuit in cooperation with the plurality of electronic components 513. The lighting circuit is a circuit that supplies a current suitable for lighting the first light source unit 50a and the second light source unit 50b, and is, for example, a constant current power supply circuit. The lighting circuit unit 51 is connected to the lighting fixture or the external power supply through a cable passing through the through hole 517 of the base 551. The lighting circuit unit 51 is connected to the first light source unit 50a and the second light source unit 50b via another cable.

The light source device 5 further comprises two fixtures 591 for removably attaching the light source device 5 to the light fixture. The lighting fixture is, for example, an adapter that is installed on the mounting surface of the light source device 5, such as a ceiling surface of a room, and detachably holds the one or more light source devices 5. As an example, the lighting fixture is long and holds one light source device 5. As another example, the lighting fixture is rectangular (rectangular or square) and holds a plurality of light source devices 5. The plurality of light source devices 5 are arranged in one row or a plurality of rows. As still another example, the lighting fixture may be rectangular, and the light source device 5 may also be rectangular. In this case, the light source unit may be formed in a rectangular shape as a whole by arranging a plurality of elongated members in the same manner as described above, or a rectangular light source unit in which the LED elements are arranged in a matrix may be used. One or more may be provided.

FIG. 2 is a cross-sectional view of the light source device 5. However, the end cover 553 and the fixture 591 are not shown in order to prioritize the view. The translucent cover 552 includes a flat front surface portion 601, a first side surface portion 603a and a second side surface portion 603b. The first side surface portion 603a is continuous with the front surface portion 601, and has a first base rail 605a in the vicinity of the center thereof. The second side surface portion 603b is continuous with the front surface portion 601, and has a second base rail 605b in the vicinity of the center thereof. The second side surface portion 603 b has a shape in which the shape of the first side surface portion 603 a is horizontally reversed. The first base rail 605a includes a first projecting piece 609a, a second projecting piece 611a, and an intermediate portion 607a between them. The first base rail 605a has an internal space surrounded by the intermediate portion 607a, the first projecting piece 609a and the second projecting piece 611a, and between the tips of the first projecting piece 609a and the second projecting piece 611a. It has an opening. The width of this opening is narrower than the width of the inner space.

Similarly, the second base rail 605b includes a first projecting piece 609b, a second projecting piece 611b, and an intermediate portion 607b therebetween. Similarly to the first base rail 605a, the second base rail 605b also has an internal space and an opening.

The first base rail 605 a extends along the longitudinal direction of the housing 55 from end to end of the housing 55. However, the present invention is not limited to this, and the first base rail 605a may extend to a part from end to end of the housing 55. The same applies to the second base rail 605b.

The base 551 includes a first light source holder for holding the first light source unit 50a and a second light source holder for holding the second light source unit 50b. Here, the first light source holder is constituted by the first light source rail 613a, and the second light source holder is constituted by the second light source rail 613b. The first light source rail 613a includes a light source pedestal 619a, a third protruding piece 621a, and a fourth protruding piece 623a. The light source pedestal 619a is between the third projecting piece 621a and the fourth projecting piece 623a and is flat. The third projecting piece 621a is a horizontal rib located at a vertical rib portion vertically projecting from the light source pedestal 619a and at an upper end of the vertical rib portion (opposite to the light source pedestal 619a) and parallel to the light source pedestal 619a. Including parts. The fourth projecting piece 623a includes a longitudinal rib portion vertically projecting from the light source pedestal 619a, and a lateral rib portion located at the upper end of the longitudinal rib portion and parallel to the light source pedestal 619a.

The first light source rail 613a has an internal space surrounded by the light source pedestal 619a, the third projecting piece 621a, and the fourth projecting piece 623a, and the lateral rib portion of the third projecting piece 621a and the side of the fourth projecting piece 623a. It has an opening between the rib portion. The first light source rail 613a accommodates the LED substrate 501 of the first light source unit 50a in its inner space, and exposes the LED element 503 of the first light source unit 50a through the opening.

The LED substrate 501 of the first light source unit 50a is in contact with the light source pedestal 619a. Thereby, the heat generated from the first light source unit 50a is efficiently transmitted to the base 551.

The size of the internal space of the first light source rail 613 a is slightly larger than the size of the LED substrate 501. This is useful when the first light source unit 50 a is mounted on the base 551. Since the size of the internal space is larger than the size of the LED substrate 501, the first light source unit 50a can slide in the first light source rail 613a. Furthermore, since the difference in size between them is small, it is possible to reduce the positional deviation of the first light source unit 50a in the internal space.

The first light source unit 50a is held by the base 551 by being accommodated in the first light source rail 613a. In addition to or instead of this, the first light source unit 50a may be held on the base 551 by fasteners (screws).

The second light source rail 613b includes a light source pedestal 619b, a third protruding piece 621b, and a fourth protruding piece 623b. The second light source rail 613b has the same structure as the first light source rail 613a.

The first light source rail 613 a extends along the longitudinal direction of the housing 55 from end to end of the housing 55. However, the present invention is not limited to this, and the first light source rail 613a may extend to a part from the end of the case 55 to the end. The same applies to the second light source rail 613b.

The base 551 further includes a lighting circuit holding unit for holding the lighting circuit unit 51 between the first light source rail 613a and the second light source rail 613b. Here, the lighting circuit holding portion is constituted by the lighting circuit rails 615. The lighting circuit rail 615 includes a lighting circuit pedestal 625, a fifth protruding piece 627 and a sixth protruding piece 629. The lighting circuit pedestal 625 includes a portion partially in contact with the circuit board 514 at both ends in the width direction of the circuit board 514 and a portion interposed therebetween and apart from the circuit board 514. The fifth projecting piece 627 is a transverse rib projecting from the vertical wall portion of the base 551. Similarly, the sixth projecting piece 629 is a transverse rib projecting from the vertical wall portion of the base 551.

The lighting circuit rail 615 has an internal space surrounded by the lighting circuit pedestal 625, the fifth projecting piece 627 and the sixth projecting piece 629, and an opening between the fifth projecting piece 627 and the sixth projecting piece 629. Have. The lighting circuit rail 615 accommodates the circuit board 514 of the lighting circuit unit 51 in its internal space, and exposes the plurality of electronic components 513 of the lighting circuit unit 51 through the opening.

The circuit board 514 of the lighting circuit unit 51 contacts the lighting circuit pedestal 625 at both ends thereof. Thereby, the heat generated from the lighting circuit unit 51 is efficiently transmitted to the base 551. The circuit board 514 of the lighting circuit unit 51 is separated from the lighting circuit pedestal 625 at the center thereof. Thereby, the projections (for example, the wiring pattern and the solder) on the back surface of the circuit board 514 can be prevented from contacting the base 551.

The size of the internal space of the lighting circuit rail 615 is slightly larger than the size of the circuit board 514. This is useful when the lighting circuit unit 51 is mounted on the base 551. Since the size of the internal space is larger than the size of the circuit board 514, the lighting circuit unit 51 can slide in the lighting circuit rail 615. Furthermore, since the difference in size between them is small, it is possible to reduce the positional deviation of the lighting circuit unit 51 in the internal space.

The lighting circuit unit 51 is held by the base 551 by being accommodated in the lighting circuit rail 615. In addition to or instead of this, the lighting circuit unit 51 may be held on the base 551 by fasteners (screws).

The lighting circuit rail 615 extends along the longitudinal direction of the housing 55 from end to end of the housing 55. However, the present invention is not limited to this, and the lighting circuit rail 615 may extend to a part from end to end of the housing 55.

The first light source unit 50a is located on a first virtual plane together with the second light source unit 50b. The first virtual plane here is a plane including the inner surfaces of the light source pedestal 619a and the light source pedestal 619b. The light emission directions of the first light source unit 50a and the second light source unit 50b are substantially perpendicular to the first virtual plane. The lighting circuit unit 51 is located on a second virtual plane parallel to the first virtual plane and at a position receded from the first virtual plane. That is, the lighting circuit unit 51 is located at a position farther from the light transmitting cover 552 in the direction perpendicular to the first virtual plane as compared to the first light source unit 50a and the second light source unit 50b. Thereby, it can be avoided or reduced that the lighting circuit unit 51 interrupts | blocks the emitted light from the 1st light source unit 50a and the 2nd light source unit 50b. The second virtual plane here is a plane including the contact surface of the lighting circuit pedestal 625 to the circuit board 514. The second virtual plane in which the lighting circuit unit 51 is positioned is set such that the electronic component 513 is disposed at a position lower than the light path from the first light source unit 50a and the second light source unit 50b to the light transmitting cover 552 Ru. As a result, the shadow of the electronic component 513 does not appear on the translucent cover 552.

The base 551 further includes a first fitting piece 617a fitting to the first base rail 605a and a second fitting piece 617b fitting to the second base rail 605b. As described above, the first base rail 605a has an internal space and an opening. The first fitting piece 617a is accommodated in the internal space of the first base rail 605a. Similar to the first fitting piece 617a, the second fitting piece 617b is accommodated in the internal space of the second base rail 605b.

The size of the internal space of the first base rail 605a is slightly larger than the size of the first fitting piece 617a. Similarly, the size of the internal space of the second base rail 605b is slightly larger than the size of the second fitting piece 617b. This is useful when the translucent cover 552 is attached to the base 551. Since the size of the internal space is larger than the first fitting piece 617a, the first fitting piece 617a can slide in the first base rail 605a. Since the size of the internal space is larger than that of the second fitting piece 617b, the second fitting piece 617b can slide in the second base rail 605b. Furthermore, since the difference in size between them is small, it is possible to reduce the positional deviation of the first fitting piece 617a and the second fitting piece 617b in the internal space.

The translucent cover 552 is held by the base 551 by accommodating the first fitting piece 617a and the second fitting piece 617b in the first base rail 605a and the second base rail 605b, respectively. In addition to this, the translucent cover 552 is fixed to the base 551 by the fixing tool (screw) 573. However, the translucent cover 552 may be fixed to the base 551 with only the fixing tool 573.

The housing 55 has a space 635a sandwiched between the first side surface portion 603a of the light-transmissive cover 552 and the vertical wall portion of the base 551 behind the first light source rail 613a. Similarly, the housing 55 has a space 635 b sandwiched between the second side surface portion 603 b of the translucent cover 552 and the vertical wall portion of the base 551 behind the second light source rail 613 b. When the light source device 5 is attached to the lighting fixture, the space 635a and the space 635b are sealed. The space 653a and the space 653b can be used as a space for accommodating the cable 787 that connects the lighting circuit unit 51 and the lighting fixture or the external power supply.

As described above, since the lighting circuit unit 51 is disposed in the housing, the lighting circuit unit 51 does not need to be housed in the metal housing. Thereby, the light source device 5 can be made light and thin.

Modification of First Embodiment
In the light source device 5 shown in FIG. 2, the first light source unit 50a and the second light source unit 50b are disposed on a first virtual plane. The lighting circuit unit 51 is disposed on a second virtual plane which is at a position retracted from the first virtual plane. That is, the lighting circuit unit 51 is disposed at a position farther than the light transmitting cover 552 in the direction perpendicular to the first virtual plane as compared to the first light source unit 50a and the second light source unit 50b. However, the present invention is not limited to this, and the lighting circuit unit 51 is disposed at a position closer to the translucent cover 552 than the first light source unit 50a and the second light source unit 50b in the direction perpendicular to the first virtual plane. May be

In the light source device 5a shown in FIG. 3, the lighting circuit unit 51 is disposed on a third virtual plane which is advanced further than the first virtual plane. That is, the lighting circuit unit 51 is disposed at a position closer to the translucent cover 552 than the first light source unit 50a and the second light source unit 50b in the direction perpendicular to the first virtual plane. In order to realize this structure, the lighting circuit pedestal 675 is disposed at a position advanced further than the light source pedestal 619a and the light source pedestal 619b. Thereby, the base 551a can be made substantially flat, so that the design of the light source device 5a can be further enhanced. In addition, the structure of the mold can be simplified.

Furthermore, in the light source device 5a shown in FIG. 3, the first light source unit 50a is located at a distance from the lighting circuit unit 51 in the width direction of the housing 55a. Similarly, the second light source unit 50 b is located at a distance from the lighting circuit unit 51 in the width direction of the housing 55 a. In order to realize this structure, the longitudinal rib portion of the fourth projecting piece 623a of the first light source rail 663a and the longitudinal rib portion of the fifth projecting piece 677 of the lighting circuit rail 665 are separated in the width direction of the housing 55a. doing. Similarly, the longitudinal rib portion of the fourth projecting piece 623b of the second light source rail 663b and the longitudinal rib portion of the sixth projecting piece 679 of the lighting circuit rail 665 are separated in the width direction of the housing 55a. Thereby, it can be avoided or reduced that the lighting circuit unit 51 interrupts | blocks the emitted light from the 1st light source unit 50a and the 2nd light source unit 50b.

In the light source device 5b shown in FIG. 4, the lighting circuit unit 51 is disposed at a position behind the first light source unit 50a and the second light source unit 50b. In addition, the first light source unit 50 a is located at a distance from the lighting circuit unit 51 in the width direction of the housing 55 b. Similarly, the second light source unit 50 b is located at a distance from the lighting circuit unit 51 in the width direction of the housing 55 b. Thereby, it can be avoided or reduced that the lighting circuit unit 51 interrupts | blocks the emitted light from the 1st light source unit 50a and the 2nd light source unit 50b.

The light source device 5c shown in FIG. 5 includes a light reflection cover 781 disposed between the first light source unit 50a and the second light source unit 50b and covering the lighting circuit unit 51. Thereby, the emitted light from the 1st light source unit 50a and the 2nd light source unit 50b can be used efficiently. In particular, when the base 551 is formed of a light reflective material, or when the base 551 is covered with a light reflective sheet, the light reflective cover 781 has the same reflectance as the light reflective material or the light reflective sheet. It becomes difficult to cause uneven reflection because of

The light reflecting cover 781 includes a first layer 783 and a second layer 785 covering the first layer 783. The first layer 783 defines the shape of the light reflecting cover 781. The second layer 785 is made of a light reflecting material. However, the present invention is not limited to this, and the light reflecting cover 781 may be formed in a single layer.

The light reflecting cover 781 extends from end to end of the housing 55 along the longitudinal direction of the housing 55c. This can further promote efficient use of the emitted light. In addition, uneven brightness in the longitudinal direction can be reduced. However, the present invention is not limited to this, and the light reflecting cover 781 may extend to a part from end to end of the housing 55c. A light reflecting sheet may be employed instead of the light reflecting cover.

The light source device 5d shown in FIG. 6 includes a cable 787 connected to the lighting circuit unit 51 in the housing 55d. The cable 787 is disposed between the first light source unit 50a and the second light source unit 50b. The cable 787 includes a plurality of coated wires 787a and a common coating 787b that collectively coat the plurality of coated wires 787a. That is, each core wire of the cable 787 is doubly insulated. As such a cable, for example, a VVF cable can be used. Thereby, the electrical insulation of the cable 787 can be enhanced.

As shown in FIG. 6, the plurality of coated wires 787a are disposed on an imaginary plane parallel to a first imaginary plane in which the first light source unit 50a and the second light source unit 50b are disposed. Thus, the cable 787 can be avoided or reduced from blocking the light emitted from the first light source unit 50a and the second light source unit 50b.

Furthermore, the light source device 5d includes a light reflection cover 789 disposed between the first light source unit 50a and the second light source unit 50b and covering the cable 787. Thereby, the emitted light from the 1st light source unit 50a and the 2nd light source unit 50b can be used efficiently.

The light reflecting cover 789 extends from end to end of the housing 55d along the longitudinal direction of the housing 55d. Thereby, the unevenness in luminance in the longitudinal direction can be reduced. However, not limited to this, the light reflecting cover 789 may extend to a part from end to end of the housing 55 d. A light reflecting sheet may be employed instead of the light reflecting cover.
In the above-mentioned example, although LED board 501 and circuit board 514 are separated, it may not be limited to this but they may be integral. That is, one substrate may mount the plurality of LED elements 503 and the plurality of electronic components 513. Alternatively, both a substrate on which the plurality of LED elements 503 and the plurality of electronic components 513 are mounted and a substrate on which the plurality of LED elements 503 are mounted may be employed.

Second Embodiment
The light source device 5e of 2nd Embodiment is shown in FIG. Hereinafter, points different from the first embodiment will be described. The lighting circuit unit of the light source device 5e applies power supplied from the AC commercial power supply to the lighting circuit in response to the attachment of the housing 55e to the lighting fixture, and removes the housing 55e from the lighting fixture. In response, the electronic component for interrupting the power supplied from the AC commercial power source is provided. Such an electronic component is, for example, a switch 519 having a push button. The base 551 of the housing 55 e has a through hole 537. The push button of the switch 519 protrudes to the outside of the housing 55 e through the through hole 537.

As shown in FIG. 8, the lighting circuit unit 51 e includes a switch 519 connected between the connector 523 and the lighting circuit 521. When the housing 55e is attached to the light fixture, the push button is pressed by the light fixture to close the switch 519. When the housing 55e is removed from the light fixture, the push button opens the switch 519 upon release of pressure by the light fixture.

In the operation of attaching the housing 55 e to the lighting fixture, first, the cable drawn from the lighting fixture is connected to the connector 523 of the lighting circuit unit 51. At this time, the switch 519 is open since the housing 55 e is not yet attached to the light fixture. That is, power has not been applied to the lighting circuit 521 yet. The housing 55e is then attached to the light fixture. At this time, the switch 519 is closed and power is supplied to the lighting circuit 521. That is, the light source device 5e includes an interlock mechanism that supplies electric power to the lighting circuit 521 in conjunction with the attachment of the housing 55e to the lighting fixture. As a result, the safety of the work of attaching and detaching the housing 55 to the lighting fixture can be enhanced.

The push button need not protrude through the through hole 537 if it can be accessed from the outside through the through hole 537. For example, the push button may be disposed in the housing 55 e and pressed by the projection of the light fixture that enters the housing 55 e through the through hole 537. By arranging the push button in the housing 55 e, the push button can be protected, and failure of the push button can be avoided or reduced.

The switch 519 is a switch for opening and closing the two lines, but is not limited to this, and may be a switch for opening and closing the three lines.

Modification of Second Embodiment
The lighting circuit unit 51 f shown in FIG. 9 includes a switch 527 and a control unit 531 as electronic components for realizing the interlock mechanism. The switch 527 is connected between the connector 523 and the lighting circuit 521. The control unit 531 controls the opening and closing of the switch 527 based on the signal transmitted from the sensor 529 provided in the lighting fixture. The sensor 529 may attach the housing 55 to the lighting fixture, remove the housing 55 from the lighting fixture, or both by mechanical, electrical, magnetic, optical, or other physical means. To detect.

The sensor 529 is, for example, a switch having a push button. When the case 55 is attached to the light fixture, the push button is pressed from the case 55 to supply the control unit 531 with an ON signal. When the housing 55 is removed from the light fixture, the push button supplies an off signal to the control unit 531 by releasing the pressure from the housing 55. The on signal and the off signal are, for example, current signals. For example, a current larger than the threshold may be an on signal and a zero current may be an off signal.

The sensor 529 is a light receiving element as another example. The lighting fixture includes a light receiving element and a light source (light emitting element) that emits a light beam to the light receiving element. The housing 55 includes a light shielding portion that is inserted into the light path from the light source of the lighting attachment to the light receiving element when the housing 55 is attached to the lighting attachment. When the housing 55 is attached to the lighting fixture, the light receiving element detects a decrease in the amount of received light due to the insertion of the light shielding portion into the light path, and supplies an ON signal to the control unit 531. When the housing 55 is removed from the lighting fixture, the light receiving element detects an increase in the amount of received light due to the withdrawal of the light shielding portion from the light path, and supplies an off signal to the control unit 531.

Here, although the sensor 529 is provided on the side of the lighting attachment, it may be provided on the side of the housing 55, and the light emitting element or the light receiving element is on the lighting attachment side, the light receiving element or the light emitting element May be provided on the housing side.

The lighting circuit unit 51g shown in FIG. 10 includes a connector 523 as an electronic component for realizing the interlock mechanism. The light fixture comprises a connector receiver 535 that fits into the connector 523. That is, the electrical connection here uses a plug-in type connector. The connector 523 is fixed to the housing 55 and exposed to the outside of the housing 55. The connector receiver 535 is fixed to the light fixture and exposed to the outside of the light fixture. The connector 523 faces the connector receiving portion 535 and is received by the connector receiving portion 535 when the housing 55 is attached to the light fixture. The insertion / removal direction of the connector 523 with respect to the connector receiving portion 535 substantially coincides with the mounting / removal direction of the housing 55 with respect to the light fixture.

Preferably, when the connector 523 is inserted into the connector receptacle 535, it first connects the ground wire and then connects the power wire. In order to realize this, for example, the connector 523 has a male pin for ground wire and a male pin for power wire. The male pin for the ground wire is longer than the male pin for the power line. As a result, the safety of the operation of attaching and detaching the housing 55 to and from the lighting fixture can be further enhanced.

Here, although a male connector is provided in the housing and a female connector receiving part is provided in the lighting fixture, the male connector is provided in the lighting fixture and the female connector receiving part is in the housing. May be provided respectively. Furthermore, the connection point for the ground wire of the connector receptacle 535 may be closest to the reception port, and the ground wire may be connected first.

<Others>
Focusing on the interlock mechanism, the lighting circuit unit may be located outside the housing.
In the light source device 5 h shown in FIG. 11, the lighting circuit unit 51 is located outside the housing 55 h and is accommodated in the circuit case 516. The push button of the switch 519 protrudes to the outside through the through hole 539 of the circuit case 516. The light source device 5 h includes an interlock mechanism. As a result, the safety of the operation of attaching and detaching the housing 55h to the lighting fixture can be enhanced. The circuit case may be made of resin or metal.

In the light source device 5i shown in FIG. 12C, the push button of the switch is disposed in the circuit case 516 at a position accessible from the outside through the through hole 541 of the circuit case 516. The lighting fixture 3 shown in FIGS. 12 (a) and 12 (b) includes an elongated back plate 305, two side plates 303 connected to both sides of the back plate, and both ends of the back plate 305 in the longitudinal direction. And the end cover 32 respectively arranged. The back plate 305 has a through hole 307 for a cable and a through hole 309 for a screw. The lighting fixture 3 further includes an operating tool 33 installed on the side plate 303. In addition, a lighting installation is comprised with a lighting fixture (3) and a light source device (5i).

As shown in FIG. 13, the operation tool 33 includes a housing 331 and an arc-shaped arm 333. The housing 331 has an arcuate long hole 337 at its bottom surface 335. The housing 331 further has an arm through hole 341 on the side surface 339 thereof. The arc-shaped arm 333 is held by the housing 331 and is rotatable about the center of the arc. The arc-shaped arm 333 has a knob 343 projecting to the outside through the arc-shaped elongated hole 337. When the knob 343 is at the first position 345, the arm tip 349 is flush with the side surface 339 of the housing 331. When the knob 343 is located at the second position 347, the arm tip 349 protrudes to the outside through the arm through hole 341.

Referring back to FIG. 12C, in the state where the housing 55i is attached to the lighting fixture 3, the operation tool 33 is located near the lighting circuit unit. When the user moves the knob 343 of the operation tool 33 from the first position 345 to the second position 347, the arm tip 349 intrudes into the circuit case 516 through the through hole 541 of the circuit case 516. Thereby, the push button of the switch is pressed.

By using the operation tool 33 in this manner, the timing at which the power is supplied to the lighting circuit can be delayed compared to the timing at which the housing 55i is attached to the lighting fixture 3. In addition, since the housing 55i can not be removed from the lighting fixture 3 unless the arm tip 349 is removed from the through hole 541 of the circuit case 516, the housing 55i can be removed only when the pressure on the switch is released. Is possible. Thereby, the safety of the work of attaching and detaching case 55i to a lighting fixture can be raised more.
Note that the lighting circuit unit may be provided in a housing that accommodates the inside.

DESCRIPTION OF SYMBOLS 3 lighting installation fixture 5 light source device 50a 1st light source unit 50b 2nd light source unit 51 lighting circuit unit 55 housing

Claims

In a light source device removably attached to a lighting fixture,
And
At least one light source unit disposed in the housing;
A lighting circuit unit disposed in the housing and generating power for the light source unit from the power supplied from an AC commercial power source.
The at least one light source unit includes first and second elongated light source units,
The light source device according to claim 1, wherein the lighting circuit unit is disposed between the first and second elongated light source units.
The lighting circuit unit applies power supplied from the AC commercial power source to a lighting circuit in response to the attachment of the housing to the lighting fixture, and removes the housing from the lighting fixture. The light source device according to claim 1, further comprising an electronic component for interrupting the power supplied from the AC commercial power source in response.
The electronic component is a switch having a push button,
The housing has a through hole for enabling pressing of the push button by the lighting fixture.
The light source device according to claim 3, wherein the push button protrudes to the outside of the housing through the through hole.
The electronic component is a switch controlled based on a signal transmitted from a sensor that detects attachment of the housing to the light fixture, removal of the housing from the light fixture, or both. The light source device according to claim 3.
The electronic component is a connector that fits into a connector receptacle mounted on the light fixture,
The connector faces the connector receiving portion of the housing in a state where the housing is attached to the light fixture, and is received by the connector receiving portion.
The insertion and removal direction of the connector with respect to the connector receiving portion substantially corresponds to the attachment and detachment direction of the housing with respect to the light fixture.
The light source device according to claim 3.