Lighting device

Abstract

The present invention provides a lighting device that simplifies the mounting structure of the light source unit to the main body. [Solution] The lighting device 10 comprises a light source unit 14 and a main body 13. The light source unit 14 has a mounting spring 38. The main body 13 has a light source placement section 25 in which the light source unit 14 is placed, and an opening 31 provided in the light source placement section 25 into which the mounting spring 38 of the light source unit 14 can be attached.

Description

Technical Field

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

Background Art

[0002] Conventionally, there is a lighting device in which a light source unit is attached to an appliance body. In this lighting device, an attachment structure is used in which a mounting spring disposed in the light source unit is engaged with a spring receiving member disposed in the appliance body so as to be detachably attached. There is room for improvement in such an attachment structure of the light source unit to the appliance body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the present invention is to provide a lighting device capable of simplifying the attachment structure of the light source unit to the main body.

Means for Solving the Problems

[0005] The lighting device according to the embodiment includes a light source unit and a main body. The light source unit has a mounting spring. The main body has a light source arrangement section for arranging the light source unit and an opening provided in the light source arrangement section to which the mounting spring of the light source unit can be attached.

Effects of the Invention

[0006] According to the embodiment, it can be expected to provide a lighting device capable of simplifying the attachment structure of the light source unit to the main body.

Brief Description of the Drawings

[0007] [Figure 1] This is a perspective view of a lighting device showing one embodiment. [Figure 2] This is a perspective view of the light source unit of the same lighting device. [Figure 3] This is a cross-sectional view of the light source unit of the same lighting device in a temporarily suspended state. [Figure 4] This is a cross-sectional view of the mounting state of the light source unit of the same lighting device. [Modes for carrying out the invention]

[0008] One embodiment will be described below with reference to the drawings.

[0009] This embodiment shows an example of renewing an existing lighting system that uses existing lamps such as fluorescent lamps or linear LED lamps, while reusing a portion of the existing lighting system to incorporate a light source unit.

[0010] Figure 1 shows the lighting device 10 to be renovated. The lighting device 10 is a direct-mount type lighting device that is installed in an elongated shape and attached to a pair of suspension bolts 11 that protrude downward from the ceiling structure, and is directly mounted to the ceiling surface.

[0011] The lighting device 10 comprises a long mounting body 12 installed on the ceiling surface by suspension bolts 11, a long main body 13 attached to the mounting body 12, and a long light source unit 14 attached to the main body 13.

[0012] The mounting body 12 is a repurposed unit from an existing lighting system, and is elongated in shape, attached to a pair of suspension bolts 11 near both ends in the longitudinal direction. Mounting bases 20 for attaching existing reflectors are attached to both ends of the mounting body 12 in the longitudinal direction, and a pair of sockets 21 for connecting existing lamps are attached to both sides of these mounting bases 20 by mounting plates 22.

[0013] In the lighting device 10, when reusing the existing lighting device's mounting body 12, the existing reflector and lamp are removed in order to use the main body 13 and light source unit 14. However, the socket 21 and the existing power supply unit that powers the existing lamp may be left in place or removed. If the socket 21 and the existing power supply unit are left in the mounting body 12 that is being reused, the removal work during renewal can be reduced, improving the efficiency of the renewal work.

[0014] Furthermore, the main body 13 is formed in an inverted Fuji shape, having a light source arrangement section 25 on the lower side where the light source unit 14 is detachably arranged, inclined sections 26 bent diagonally upward from both sides in the short direction of the light source arrangement section 25, and end plate sections 27 that close both ends in the longitudinal direction. On the upper side of the main body 13, there is an upwardly opening housing section 28 that accommodates the mounting body 12, mounting base 20, socket 21, etc., when the main body 13 is attached to the mounting body 12. The height dimension of the main body 13 is formed to allow the suspension bolts 11, mounting body 12, mounting base 20, and socket 21 to be accommodated in the housing section 28.

[0015] The light source placement section 25 is provided with a recess 25a into which the upper side of the light source unit 14 is fitted and positioned. The light source placement section 25 has a flat placement plate section 29 into which the light source units 14 are positioned opposite each other. A pair of mounting holes 30 are provided near both ends in the longitudinal direction of this placement plate section 29, into which fasteners for attaching to the mounting base 20 of the installation body 12 are positioned, and a rectangular opening 31 is provided between the pair of mounting holes 30 in the central area in the longitudinal direction. For example, set screws are used as fasteners, which are rotatably positioned in the mounting holes 30 and screwed into the mounting base 20 to attach the main body 13 to the installation body 12. A latch-type fastener that can be fixed and released by rotating it 90° may also be used as a fastener. The opening 31 is designed so that its longitudinal dimension is shorter than the light source unit 14, its short-width dimension is shorter than the light source unit 14, and the dimensions are such that the hook portion of the mounting spring of the light source unit 14 can be inserted. Spring receiving portions 32 are erected at both longitudinal edges of the opening 31. The spring receiving portions 32 may be bent from the edge of the opening 31 and provided integrally with the main body 13, or they may be attached separately to the upper surface of the light source placement portion 25. The opening 31 may be a single continuous opening 31 in the longitudinal direction, or a pair of openings 31 divided into two at both longitudinal ends.

[0016] Furthermore, as shown in Figures 1 to 4, the light source unit 14 includes a long chassis 35, a light source module 36 positioned on the underside of the chassis 35, a cover 37 that covers the light source module 36 and is attached to the chassis 35, and a pair of mounting springs 38 attached to the upper side of the chassis 35 near both ends in the longitudinal direction.

[0017] The chassis 35 is made of metal and has a roughly U-shaped cross-section, with a long light source mounting section 39 and side wall sections 40 that are bent upward from both sides in the short direction of the light source mounting section 39.

[0018] The light source module 36 has a long substrate and multiple light-emitting elements, such as LEDs, mounted along this substrate.

[0019] The cover 37 has a cover portion 41 with a convex curved surface facing the light source module 36, and end face portions 42 that close both end faces of the cover portion 41. The cover portion 41 is made of resin and has light transmittance and diffusibility for light from the light source module 36. The cover portion 41 has an engaging portion 43 that engages with the upper sides of the side wall portions 40 on both sides of the chassis 35 in a state where a part of the cover portion 41 abuts on the lower surface side of the light source mounting portion 39 of the chassis 35. The end face portion 42 may or may not have light transmittance.

[0020] The mounting spring 38 is attached to the chassis 35 by a mounting member 44. The mounting spring 38 is constituted by, for example, a torsion spring, a pair of coil portions 45 are held by the mounting member 44, a substantially U-shaped hook portion 46 connecting one ends of the pair of coil portions 45 extends from the central side in the longitudinal direction of the light source unit 14 toward the end portion side, and the other ends of the pair of coil portions 45 are attached to the mounting member 44. The mounting spring 38 is arranged such that a spring force acts in a direction in which the hook portion 46 goes from the upper side of the chassis 35 through the end portion side to the lower side. The hook portion 46 can be hooked on the spring receiving portion 32 by passing through the opening 31 of the main body 13.

[0021] Further, the lighting device 10 includes a power supply unit that supplies lighting power to the light emitting module of the light source unit 14 to cause it to light up. The power supply unit is attached to the back side of the main body 13 and housed in the housing portion 28. Note that the power supply unit may be arranged in the light source unit 14.

[0022] Next, a renewal method from an existing lighting device to the lighting device 10 will be described.

[0023] Remove the existing lamp and the existing reflector from the installation body 12 of the existing lighting device.

[0024] Cover the installation body 12 with the main body 13 from below, and screw the main body 1 to the mounting base 20 of the installation body 12 through the mounting holes 30.

[0025] As shown in Figure 3, the hooking portions 46 of the pair of mounting springs 38 of the light source unit 14 are raised against the spring force, and the tips of the hooking portions 46 are hooked onto the spring receiving portion 32 through the opening 31 of the main body 13. As a result, the light source unit 14 is temporarily suspended below the main body 13 via the pair of mounting springs 38.

[0026] In this temporary suspension state, an electrical connection is made between the main body 13 and the light source unit 14 through the opening 31 of the main body 13. If the power supply unit is located on the main body 13, the terminal block of the mounting body 12 to which the external power line is connected is electrically connected to the power supply unit, and the power supply unit is electrically connected to the light source unit 14. If the power supply unit is located on the light source 14, the terminal block of the mounting body 12 to which the external power line is connected is electrically connected to the power supply unit.

[0027] After the electrical connection is complete, as shown in Figure 4, the light source unit 14 is pushed upward toward the mounting body 12, and the spring force of the pair of mounting springs 38 pulls the light source unit 14 up to a position where the engaging portion 43 of the cover 37 contacts the lower surface of the placement plate portion 29 of the main body 13, and holds the light source unit 14 attached to the main body 13. The hook portion 46 of the mounting spring 38 contacts the upper surface of the placement plate portion 29 of the main body 13, and the spring force pulls the light source unit 14 up toward the main body 13.

[0028] Thus, in this embodiment, the lighting device 10 is provided with an opening 31 in the light source arrangement section 25 of the main body 13, to which the mounting spring 38 of the light source unit 14 can be attached, thus simplifying the mounting structure of the light source unit 14 to the main body 13.

[0029] Since an opening 31 is provided in the placement plate portion 29 of the light source placement section 25 where the light source units 14 are positioned opposite each other, the light source units 14 can be attached to the main body 13 by sandwiching the placement plate portion 29 between the light source unit 14 and the mounting spring 38.

[0030] Since a spring receiving portion 32 is provided on the edge of the opening 31, which the mounting spring 38 catches on, the light source unit 14 can be temporarily suspended from the main body 13, improving the workability of electrical connections and other tasks.

[0031] Note that the lighting device 10 is not limited to lighting devices for renovation, but may also be newly installed lighting devices. In the case of newly installed lighting devices, they may be installed on the suspension bolts 11 using an installation body 12 without a socket 21, or they may be installed by attaching the placement plate portion 29 of the main body 13 to the suspension bolts 11 without using an installation body 12.

[0032] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0033] 10 Lighting devices 13 Main unit 14 Light source units 25 Light source arrangement section 29 Arrangement plate section 31 Opening 32 Spring support 38 Mounting spring

Claims

1. A light source unit having a mounting spring; A main body having a light source arrangement section for arranging the light source unit, and an opening provided in the light source arrangement section to which the mounting spring of the light source unit can be attached; A lighting device characterized by having the following features.

2. The light source arrangement section has an arrangement plate section in which the light source units are arranged facing each other. The aforementioned opening is provided in the arrangement plate portion. The lighting device according to feature 1.

3. The main body has a spring receiving portion that protrudes from the edge of the opening and into which the mounting spring catches. The lighting device according to claim 1 or 2.

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