Illuminating device

Abstract

To provide an illuminating device that can improve workability.SOLUTION: An illuminating device 10 comprises an appliance body 15, a light source unit 12, a fitting spring 18, and a spring receiving member 43. The appliance body 15 comprises an opening part 24, and a housing part 25 provided on a back side of the opening part 24. The light source unit 12 is arranged in the opening part 24 of the appliance body 15. The fitting spring 18 is housed in the housing part 25 closer to the back side than the opening part 24, and provided in the appliance body 15. The spring receiving member 43 is provided in the light source unit 12 so as to protrude toward the appliance body 15 from the light source unit 12, inserted from the opening part 24 of the appliance body 15, engaged with the fitting spring 18 in the housing part 25, and fitted to the fitting spring 18.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] Embodiments of the present invention relate to a lighting device.

Background Art

[0002] Conventionally, there has been a lighting device in which a light source unit is detachable from an appliance body. As a detaching and attaching structure of this lighting device, there is a detaching and attaching structure in which a mounting spring is attached to the appliance body, a spring receiving member is attached to the light source unit, and the spring receiving member of the light source unit is pushed into the mounting spring of the appliance body for attachment.

[0003] In this lighting device, since the appliance body is installed at a high position such as a ceiling surface and the light source unit is pushed up and attached to the appliance body from below, grasping the position of the spring receiving member of the light source unit for work leads to an improvement in workability.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be solved by the present invention is to provide a lighting device capable of improving workability.

Means for Solving the Problems

[0006] The lighting device according to the embodiment includes an appliance body, a light source unit, a mounting spring, and a spring receiving member. The appliance body has an opening and a housing portion provided on the back side of the opening. The light source unit is disposed at the opening of the appliance body. The mounting spring is housed inside the housing portion on the back side of the opening and is provided on the appliance body. The spring receiving member protrudes toward the appliance body from the light source unit and is provided on the light source unit. The spring receiving member is inserted through the opening of the appliance body and engaged with the mounting spring inside the housing portion, and is attached to the mounting spring.

Advantages of the Invention

[0007] According to the embodiment, an improvement in workability can be expected.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0009] Hereinafter, one embodiment will be described with reference to the drawings.

[0010] The lighting device 10 is shown in FIGS. 1 to 3. The lighting device 10 is a ceiling-mounted lighting device installed on, for example, a ceiling surface which is an installation target. The lighting device 10 is a long base light with a long light-emitting portion.

[0011] The lighting device 10 includes a main body unit 11 installed on the ceiling surface and a light source unit (light source bar) 12 detachably attached to the lower surface, which is one surface of the main body unit 11.

[0012] The main body unit 11 includes an appliance main body 15, a terminal block 16 for connecting a power cord, a power supply unit 17 for supplying lighting power to the light source unit 12, and a pair of mounting springs 18 of a mounting mechanism for detachably attaching the light source unit 12 to the appliance main body 15. The terminal block 16, the power supply unit 17, and the pair of mounting springs 18 are accommodated and attached within the appliance main body 15.

[0013] The appliance main body 15 is shown in FIGS. 1 to 6. The appliance main body 15 is made of metal and is provided in a long shape. The appliance main body 15 includes a long top plate portion 20, both side plate portions 21 bent from both sides in the short direction (also referred to as the width direction) intersecting the longitudinal direction of the top plate portion 20, both reflecting plate portions 22 protruding obliquely upward from the lower ends of these side plate portions 21, and end plate portions 23 closing both ends in the longitudinal direction of the appliance main body 15, and is formed in a so-called inverted Fuji shape. An opening 24 opening downward is formed on the lower surface of the appliance main body 15 between the top plate portion 20, both side plate portions 21, and both end plate portions 23, and a concave accommodating portion 25 communicating with the opening 24 is formed inside the appliance main body 15 on the back side of the opening 24. Note that the appliance main body 15 is not limited to the inverted Fuji shape, and may be of various types such as a trough shape without the reflecting plate portion 22 or a hat-shaped type having a hat protruding obliquely downward from the lower ends of both side plate portions 21.

[0014] Mounting holes 26 for attachment to two suspension bolts from a ceiling structure protruding from the ceiling surface are provided on both ends in the longitudinal direction of the top plate portion 20. A wiring hole 27 for drawing a power cord drawn from the ceiling surface into the accommodating portion 25 of the appliance main body 15 is provided at the center in the longitudinal direction of the top plate portion 20.

[0015] For example, triangular marks 28 indicating the positions of the mounting springs 18 are provided on both reflecting plate portions 22.

[0016] Also, as shown in FIG. 2, the terminal block 16 is attached to the lower surface of the top plate portion 20 of the appliance body 15 at a position on one end side in the longitudinal direction of the appliance body 15 with respect to the wiring hole 27. A power line for supplying external power such as AC power from a commercial AC power supply is connected to the terminal block 16, and a feed wiring for sending external power to other lighting devices can be connected. The power line includes a power line drawn into the housing portion 25 from the wiring hole 27 and a feed wiring from another lighting device drawn into the housing portion 25 through the knockout opening removed from the end plate portion 23 of the appliance body 15. The terminal block 16 is electrically connected to the input portion for inputting the external power of the power supply portion 17 by wiring, and supplies the external power to the power supply portion 17.

[0017] Also, the power supply portion 17 is attached to the lower surface of the top plate portion 20 of the appliance body 15 at a position on the other end side in the longitudinal direction of the appliance body 15 opposite to the terminal block 16 with respect to the wiring hole 27. The power supply portion 17 converts the external power input through the terminal block 16 into lighting power which is DC power and supplies it to the light source unit 12. A wiring with a connector for supplying the lighting power is connected to the output portion for outputting the lighting power of the power supply portion 17. Note that the power supply portion 17 may be disposed in the light source unit 12.

[0018] Also, the pair of mounting springs 18 are attached to the lower surface of the top plate portion 20 of the appliance body 15 at positions on both end sides in the longitudinal direction of the appliance body 15 rather than the terminal block 16 and the power supply portion 17 with respect to the wiring hole 27. The entire pair of mounting springs 18 is located on the back side of the opening portion 24 of the appliance body 15 and is housed in the housing portion 25.

[0019] The mounting springs 18 are shown in FIGS. 5 to 8. The mounting springs 18 are integrally formed by a metal leaf spring. The mounting springs 18 have a mounting portion 30 attached to the lower surface of the top plate portion 20 of the appliance body 15 and a pair of arm portions 31 bent from both opposite sides of the mounting portion 30, and are formed in a substantially U-shaped cross section.

[0020] The pair of arm portions 31 includes an arm base portion 32 bent obliquely downward from both opposite sides of the mounting portion 30 such that the distal ends thereof diverge from each other, a regulating portion 33 bent so as to project from the distal end side of the arm base portion 32 toward each other, a holding portion 34 bent obliquely downward from the distal end side of the arm base portion 32 so as to approach each other, and an inclined portion 35 bent obliquely downward from the distal end side of the holding portion 34 so as to separate from each other. The regulating portions 33 are provided at both side positions in the width direction of the arm base portion 32, and the holding portion 34 is provided between the regulating portions 33 on both sides of the arm portion 31. The distal end side of the inclined portion 35 is bent so as to wrap around the outer surface side of the inclined portion 35.

[0021] The mounting spring 18 is attached to the instrument main body 15 such that the pair of arm portions 31 are arranged in the short direction intersecting the longitudinal direction of the instrument main body 15. A mounting hole 36 is provided in the mounting portion 30 of the mounting spring 18, and the mounting spring 18 is fixed to the top plate portion 20 of the instrument main body 15 by a fastening tool such as a bolt and a nut using the mounting hole 36.

[0022] Next, FIGS. 1 to 6 show the light source unit 12. The light source unit 12 includes a long chassis 40, a long light source module 41 (see FIGS. 5 and 6) attached to the lower surface side of the chassis 40, a long light source cover 42 attached to the chassis 40 so as to cover the light source module 41, and a pair of spring receiving members 43 of a mounting mechanism disposed on the upper surface side of the chassis 40.

[0023] The chassis 40 is made of metal and is provided in a long shape. The chassis 40 includes a long light source mounting portion 45 and bent portions 46 bent upward from both side portions in the short direction of the light source mounting portion 45, and is formed in a substantially U-shaped cross section. The distal end side of the bent portion 46 is bent so as to wrap around the outer surface side of the bent portion 46.

[0024] Further, the light source module 41 includes a long light source substrate 48 having a wiring pattern formed on the surface side, and a plurality of light emitting elements 49 mounted along the longitudinal direction of the light source substrate 48 on the wiring pattern on the surface side of the light source substrate 48. The light source substrate 48 is attached along the longitudinal direction of the chassis 40 so that the back side faces the lower surface side of the chassis 40. The light source substrate 48 is attached by being pressed against the chassis 40 by a light source cover 42. As the light emitting element 49, a semiconductor light emitting element such as an LED or an organic EL is used. A wire with a connector is connected to the light source module 41, and the wire with a connector from the light source module 41 and the wiring with a connector from the power supply unit 17 are connected by a connector, whereby the lighting power from the power supply unit 17 is supplied to the light emitting element 49.

[0025] Further, the light source cover 42 is a resin-made translucent cover having translucency and light diffusing properties, and the light from the light emitting element 49 passes through it. The light source cover 42 is formed in a shape in which the cross-sectional shape in the short side direction is a convex curved surface on the front side.

[0026] On the upper surface side of the light source cover 42, an opening for arranging the light source module 41 is formed along the longitudinal direction in the central region in the width direction, and contact portions 51 that can contact the lower end portions of the side plate portions 21 on both sides of the instrument body 15 are formed along the longitudinal direction in both side regions of the opening, which are both side regions in the width direction. The both side contact portions 51 are provided with a lower engagement portion 52 that engages with the lower surface side of the light source mounting portion 45 of the chassis 40, an upper engagement portion 53 that engages on the bent portion 46 of the chassis 40, a pressing portion 54 that contacts the surface side of the light source substrate 48 and presses the light source substrate 48 against the chassis 40, and an insertion portion 55 that is a positioning portion protruding from a position outside the upper engagement portion 53 and inserted between the side plate portions 21 on both sides of the instrument body 15. The chassis 40 and the light source cover 42 are combined and integrated with each other by sliding them in the longitudinal direction.

[0027] An end face cover 56 is attached to the end of the light source cover 42. The end face cover 56 is made of resin and may be non-translucent or may have translucency. The end face cover 56 is attached to the end of the light source cover 42 held by the chassis 40 and holds the light source cover 42 with respect to the chassis 40.

[0028] And the upper surface of the light source unit 12 is a mounting surface 58 that is disposed and attached to the lower surface which is one surface of the appliance body 15, and rising portions 59 that rise from both sides in the short side direction of this mounting surface 58 and are inserted into the accommodating portion 25 of the appliance body 15 are protruding. The rising portions 59 on both sides include the bent portion 46 of the chassis 40, the upper engaging portion 53 of the light source cover 42, the insertion portion 55, and the like.

[0029] Also, as shown in FIG. 3, the spring receiving member 43 is attached at two locations near both ends in the longitudinal direction on the upper surface of the light source mounting portion 45 of the chassis 40 corresponding to the positions of the pair of mounting springs 18 of the appliance body 15.

[0030] As shown in FIGS. 5 to 7, the spring receiving member 43 is integrally formed by a metal plate. The spring receiving member 43 has a substantially rectangular spring receiving plate portion 61, a pair of support plate portions 62 bent downward from one pair of opposing side portions of the spring receiving plate portion 61, and a pair of mounting plate portions 63 bent outward from these support plate portions 62. A pair of notch-shaped spring receiving grooves 64 are provided in the central regions in the width direction of both sides of the other pair of opposing side portions of the spring receiving plate portion 61. The pair of mounting plate portions 63 have mounting holes 65, and are attached to the upper surface of the light source mounting portion 45 of the chassis 40 by fastening tools such as bolts and nuts using these mounting holes 65. The spring receiving member 43 is mounted on the chassis 40 such that the pair of spring receiving grooves 64 are disposed to face each other in the short side direction of the chassis 40 (the short side direction of the appliance body 15).

[0031] When attaching the light source unit 15 to the appliance body 15, the spring receiving member 43 is relatively pushed into the space between the pair of arm portions 31 of the mounting spring 18, so that the spring receiving member 43 is attached to the mounting spring 18, and the light source unit 15 is attached to the appliance body 15. The inclined portions 35 and the holding portions 34 of the pair of arm portions 31 of the mounting spring 18 are relatively inserted into and engaged with the pair of spring receiving grooves 64 of the spring receiving member 43. The minimum opposing interval between the holding portions 34 of the pair of arm portions 31 in the unloaded state where no load is applied to the mounting spring 18 is narrower than the minimum opposing interval between the pair of spring receiving grooves 64 of the spring receiving member 43. Further, the opposing interval on the tip side of the arm base portions 32 of the pair of arm portions 31 and the maximum opposing interval between the holding portions 34 of the mounting spring 18 in the unloaded state are narrower than the maximum opposing interval of the pair of spring receiving grooves 64 of the spring receiving member 43 and smaller than the minimum opposing interval.

[0032] As shown in FIGS. 4 to 6, the upper side including the spring receiving plate portion 61 of the spring receiving member 43 protrudes upward in the mounting direction to the appliance body 15 rather than to the light source unit 12. That is, the upper side including the spring receiving plate portion 61 of the spring receiving member 43 protrudes upward from the both sides of the mounting surface 58 of the light source unit 12. Therefore, when the light source unit 12 is viewed from directly side or obliquely downward, the position of the spring receiving member 43 can be visually recognized.

[0033] Next, the installation of the lighting device 10 will be described.

[0034] Pass the power line from the ceiling surface through the wiring hole 27 of the appliance body 15, pass the mounting hole 26 of the appliance body 15 through the suspension bolt protruding from the ceiling surface, and screw and tighten the nut to the suspension bolt from the lower surface side of the appliance body 15, thereby attaching the appliance body 15 to the ceiling surface. The power line is electrically connected to the terminal block 16.

[0035] Lift the light source unit 12 and move it below the appliance body 15, and connect the connector-attached electric wire from the light source module 41 of the light source unit 12 and the connector-attached wiring from the power supply unit 17 by connector connection.

[0036] View the position of the mounting spring 18 directly when looking at the appliance body 15 from diagonally below, or indirectly confirm the position of the mounting spring 18 from the mark 28 on the reflector portion 22 of the appliance body 15. At the same time, view the position of the spring receiving member 43 when looking at the light source unit 12 from directly sideways or diagonally below, and align the positions of the mounting spring 18 and the spring receiving member 43 while pushing the light source unit 12 upward toward the appliance body 15.

[0037] As the light source unit 12 is pushed upward toward the appliance body 15, the spring receiving member 43 and the upright portion 59 protruding from the mounting surface 58 of the light source unit 12 are inserted into the opening 24 of the appliance body 15.

[0038] The inclined portions 35 of the pair of arm portions 31 of the mounting spring 18 are relatively inserted into the pair of spring receiving grooves 64 of the spring receiving member 43, and the spring receiving plate portion 61, which is the edge of the spring receiving groove 64, abuts against the inclined portion 35 and the pair of arm portions 31 are elastically pushed open.

[0039] While the spring receiving plate portion 61 elastically pushes open the pair of arm portions 31, it moves upward above the inclined portion 35. When it gets over the inclined portion 35 and engages with the holding portion 34, the pair of arm portions 31 move in the closing direction by the spring force, the holding portion 34 engages with the lower side of the spring receiving plate portion 61, and the restricting portion 33 engages with the upper surface of the spring receiving plate portion 61. This engaged state is the mounting state shown in Fig. 6, and the spring receiving member 43 is attached to the mounting spring 18.

[0040] In this way, the spring receiving member 43 of the light source unit 12 is pushed into and engaged with the mounting spring 18 of the appliance body 15, and the light source unit 12 is attached to the appliance body 15 via the spring receiving member 43 and the mounting spring 18.

[0041] Then, in the installed lighting device 10, when external power is input to the power supply unit 17 through the terminal block 16, the external power is converted into lighting power by the power supply unit 17, and this lighting power is supplied to the light emitting element 49 of the light source module 41 and the light emitting element 49 lights up.

[0042] Also, when removing the light source unit 12 from the fixture body 15, by forcibly moving the light source unit 12 downward with respect to the fixture body 15, while the pair of arm portions 31 of the mounting spring 18 open, the spring receiving member 43 moves downward and disengages, and the light source unit 12 is removed from the fixture body 15.

[0043] In the lighting device 10 configured as described above, the spring receiving member 43 of the light source unit 12 is inserted into the accommodating portion 25 from the opening 24 of the fixture body 15 and engaged with the mounting spring 18, and the spring receiving member 43 is attached to the mounting spring 18 within the accommodating portion 25. Therefore, the light source unit 12 can be attached simply by pushing it upward with respect to the fixture body 15, improving workability.

[0044] Moreover, since the spring receiving member 43 of the light source unit 12 protrudes in the mounting direction from the light source unit 12 to the fixture body 15, when attaching the light source unit 12 by pushing it upward from below with respect to the fixture body 15 installed on a ceiling surface or the like, the position of the spring receiving member 43 of the light source unit 12 can be confirmed and the work can be carried out, improving workability.

[0045] The mounting spring 18 is accommodated within the accommodating portion 25 behind the opening 24 and attached to the fixture body 15. Also, the spring receiving member 43 is inserted from the opening 24 of the fixture body 15 and engaged with the mounting spring 18 within the accommodating portion 25 and attached to the mounting spring 18 within the accommodating portion 25. Therefore, for example, compared to the case where the mounting spring 18 protrudes outside the opening 24 of the fixture body 15 and the mounting spring 18 and the spring receiving member 43 are engaged and attached outside the opening 24 of the fixture body 15, the height dimension of the lighting device 10 can be reduced, enabling miniaturization.

[0046] Even if standing portions 59 are provided on both sides of the mounting surface 58 of the light source unit 12 to the fixture body 15, the spring receiving member 43 protrudes more than the standing portions 59, and the position of the spring receiving member 43 can be confirmed.

[0047] In addition, since the spring receiving member 43 is pushed between the pair of arm portions 31 of the mounting spring 18, it is a mounting mechanism for attaching the spring receiving member 43 to the mounting spring 18. Therefore, the light source unit 12 can be attached simply by pushing it upward with respect to the instrument body 15, improving the workability.

[0048] Since the pair of arm portions 31 of the mounting spring 18 are arranged in a direction intersecting the longitudinal direction of the instrument body 15, the space between the inner sides of the pair of arm portions 31 opens in the longitudinal direction of the instrument body 15, and wiring such as feed wiring can be passed through the space between the inner sides of the pair of arm portions 31. This makes it possible to easily route the wiring inside the instrument body 15 and also to accommodate miniaturization of the instrument body 15.

[0049] Note that the pair of arm portions 31 of the mounting spring 18 may be arranged in the longitudinal direction of the instrument body 15.

[0050] Alternatively, the mounting spring 18 may be provided on the light source unit 12 and the spring receiving member 43 may be provided on the instrument body 15.

[0051] In addition, the mounting mechanism is not limited to the structures of the mounting spring 18 and the spring receiving member 43 described above. Any structure is acceptable as long as the mounting portion on the light source unit 12 side is pushed into the mounting portion on the instrument body 15 side for attachment, and the attachment is released by forcibly pulling or pushing the light source unit 12 again.

[0052] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and its equivalent scope.

Explanation of Reference Numerals

[0053] 10 Lighting device 12 Light source unit 15 Appliance body 18 Mounting spring 24 Opening 25 Accommodating part 30 Mounting part 31 Arm part 43 Spring receiving member 58 Mounting surface 59 Upright upper part

Claims

1. An appliance body having an opening and a housing portion provided on the back side of the opening; A light source unit disposed at the opening of the appliance body; A mounting spring provided in the housing portion on the back side of the opening and provided on the appliance body; A spring receiving member that protrudes toward the appliance body from the light source unit, is provided on the light source unit, is inserted through the opening of the appliance body, engages with the mounting spring in the housing portion, and is attached to the mounting spring; A lighting device, characterized by comprising the above.

2. The light source unit has a mounting surface attached to the appliance body and rising portions that rise from both sides of the mounting surface and are inserted into the housing portion of the appliance body. The spring receiving member protrudes from the light source unit more than the rising portions. The lighting device according to Claim 1, characterized by the above.

3. The mounting spring has a mounting portion attached to the appliance body facing the opening and a pair of arm portions bent from the mounting portion toward the opening. The spring receiving member is attached to the mounting spring in a state of being pushed between the pair of arm portions of the mounting spring. The lighting device according to Claim 1 or 2, characterized by the above.

4. The appliance body and the light source unit are provided in a long shape. The pair of arm portions of the mounting spring are arranged in a direction intersecting the longitudinal direction of the appliance body. The lighting device according to Claim 3, characterized by the above.

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