Light source unit and lighting fixture

Abstract

The utility model provides a lighting appliance, which solves the heat dissipation problem of a light source unit and the installation problem of a back part, and realizes light weight. A light source unit includes a cover portion, a light source substrate, and a back surface member, in which the light source substrate includes a substrate and a light source, the cover portion has a hollow structure in which a light emitting cover portion that emits light emitted from the light source and a support cover portion that supports the substrate are integrally configured, the light source substrate is attached in close contact with or close to the inner side of the support cover portion, the outer side of the flat portion is exposed to the outside, and the back surface member includes a light source unit-side coupling member and can be attached to a back surface member attachment portion of the support cover portion protruding to the outside of the hollow structure.

Description

Technical Field

[0001] The utility model relates to a light source unit and a lighting device comprising the light source unit, in particular to a lighting device with a device body separated from the light source unit. Background Art

[0002] One of the lighting fixtures arranged on the ceiling is a lighting fixture including a light source unit and a fixture body having a recess for accommodating the light source unit (see Patent Document 1). In this lighting fixture, when a mounting spring of the light source unit is hung on a spring seat of the fixture body, the light source unit is pulled toward the lighting fixture by the elastic force of the mounting spring, and the light source unit is accommodated in the fixture body.

[0003] The lighting fixture described in Patent Document 2 includes a fixture body and a light-emitting module, and the light-emitting module (equivalent to an LED substrate) is disposed inside a surrounding body made of a light-transmitting resin.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2019-207784

[0007] Patent Document 2: Japanese Patent Application Publication No. 2012-084367 Utility Model Content

[0008] Problems to be solved by utility models

[0009] In the lighting fixture of Patent Document 1, there is a problem that the light source unit is heavy. The reason for this is that the support body to which the substrate on which the LED is mounted is mounted is made of metal.

[0010] On the other hand, in the lighting fixture of Patent Document 2, since a surrounding body made of a light-transmitting resin is used, there is no component equivalent to a metal support body. However, in order to maintain strength and ensure heat dissipation, a light-emitting module including a longitudinal louver is provided, but sufficient weight reduction cannot be achieved.

[0011] The metal support body not only supports the LED mounting substrate in the front, but also has back parts such as connection parts for the power supply and the device body installed on the back. In this case, a threaded hole is provided on the metal support body, and a screw is inserted into the hole and tightened to fix the back part. As a problem when the support body is made of resin, a threaded hole is provided on the resin and fixed, and there is no problem of the strength of the resin. In addition, as a problem when the support body is made of resin with a hollow structure integrated with the front cover, it is difficult to put a tool into the hollow part of the support body to install the back part.

[0012] The utility model is completed in view of the above problems, and its purpose is to provide a lighting device that solves the heat dissipation problem of the light source unit and the back component installation problem and realizes lightweight.

[0013] Means used to solve problems

[0014] In order to solve the above problems, the utility model is a light source unit, comprising a cover having a hollow structure and a light source substrate installed inside the cover, wherein:

[0015] The light source substrate comprises a substrate and a light source.

[0016] A light emitting cover portion for emitting light emitted from the light source and a supporting cover portion for supporting the light source substrate are integrally formed in the cover portion.

[0017] The light emitting cover portion is light-transmissive,

[0018] The light transmittance of the support cover is lower than that of the light emitting cover,

[0019] A flat portion for mounting the light source substrate is disposed on the inner side of the support cover, and the outer side of the flat portion is exposed to the outside of the hollow structure.

[0020] The light source substrate is installed in close contact with or close to the flat portion.

[0021] A rear surface member can be mounted on the outer side of the support cover.

[0022] The utility model is a light source unit, comprising a cover, a light source substrate and a back component, wherein:

[0023] The light source substrate comprises a substrate and a light source.

[0024] The cover has a hollow structure, in which a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are integrally formed.

[0025] The light source substrate is arranged on the inner side of the support cover.

[0026] The rear surface member is mounted on a rear surface member mounting portion of the support cover that protrudes toward the outside of the hollow structure.

[0027] In the present invention, the back member mounting portion may be formed with a hole for mounting the back member.

[0028] In the present invention, the back surface member may be at least one member selected from a power source, a light source unit side connection member, a communication unit, and a spring protection portion.

[0029] The utility model is a lighting device, which comprises a device body and a light source unit, wherein the device body comprises a device body side connecting component, wherein:

[0030] The light source unit includes a cover, a light source substrate and a back component.

[0031] The light source substrate comprises a substrate and a light source.

[0032] The cover has a hollow structure, in which a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are integrally formed.

[0033] The light source substrate is installed in close contact with or close to the flat portion provided on the inner side of the support cover, and the outer side of the flat portion is exposed to the outside.

[0034] The back member can be mounted on the outer side of the support cover.

[0035] The back member includes a light source unit side connecting member,

[0036] The equipment body and the light source unit are integrated by coupling the equipment body-side coupling member and the light source unit-side coupling member.

[0037] The utility model is a lighting device, which comprises a device body and a light source unit, wherein the device body comprises a device body side connecting component, wherein:

[0038] The light source unit includes a cover, a light source substrate and a back component.

[0039] The light source substrate comprises a substrate and a light source.

[0040] The cover has a hollow structure, in which a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are integrally formed.

[0041] The light source substrate is arranged on the inner side of the support cover.

[0042] The back member is mounted on a back member mounting portion of the support cover that protrudes outward from the hollow structure.

[0043] The rear surface member includes a light source unit side connecting member.

[0044] The utility model is a lighting device, which comprises a device body and a light source unit, wherein the device body comprises a device body side connecting component, wherein:

[0045] The light source unit includes a cover, a light source substrate and a back component.

[0046] The light source substrate comprises a substrate and a light source.

[0047] The cover has a hollow structure, in which a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are integrally formed.

[0048] The light source substrate is arranged on the inner side of the support cover.

[0049] The back member includes a light source unit side connecting member,

[0050] The light transmittance of the support cover is smaller than that of the light emitting cover,

[0051] The support cover is mounted in contact with the device body.

[0052] Effect of utility model

[0053] The light source unit of the utility model installs a light source substrate inside the support cover of the hollow structure cover that integrates the light emitting cover and the support cover, and the outside of the support cover is exposed, so that heat dissipation can be ensured while being lightweight without using metal.

[0054] Furthermore, the light source unit of the present invention includes a cover portion of a hollow structure that integrates a light emitting cover portion and a supporting cover portion, and a rear component mounting portion protruding from the supporting cover portion is provided to mount rear components such as a light source unit connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a three-dimensional diagram of a lighting fixture.

[0056] Figure 2 is the X from the light source unit F Side view and Z direction B Direction top view.

[0057] Figure 3 From Y F End view of the cut-off portion of the lighting fixture as viewed from the right direction.

[0058] Figure 4 From Z F Light source substrate for viewing from the direction.

[0059] Figure 5 is the Y from the end cap F The main view and the view from Z B Direction top view.

[0060] Figure 6 This is an end view of a cutaway portion including a power supply portion of a light source unit.

[0061] Figure 7 It is a perspective view of the connecting spring part.

[0062] Figure 8 This is an end view of a cut-off portion including a connection spring portion of a light source unit.

[0063] Fig. 9 This is a perspective view of the lighting fixture in a state where the light source unit is separated from the fixture body.

[0064] Fig.10 It is a three-dimensional diagram of the spring seat.

[0065] Fig.11 It is a cross-sectional view of a modified example of the cover portion.

[0066] Fig.12 1 and 2 are a side view and a top view of a light source unit according to Embodiment 2.

[0067] Fig.13 This is a cross-sectional view of a lighting fixture according to Embodiment 2.

[0068] Fig.14 It is a cross-sectional view of a light source unit according to Embodiment 3.

[0069] Description of Reference Numerals

[0070] 100, 500 lighting fixtures

[0071] 110, 510 Equipment body

[0072] 111, 511 housing

[0073] 112, 512 Storage recess

[0074] 114, 514 bottom part

[0075] 115, 515 long side face

[0076] 117 Spring seat (connecting part on the device body side)

[0077] 117A Spring seat fixing part

[0078] 117B Spring seat main part

[0079] 117C Spring through hole

[0080] 117D Hook

[0081] 118 Terminal Block

[0082] 119 AC cable on the main body of the appliance

[0083] 120A lamp cord insertion hole

[0084] 120B Appliance mounting hole

[0085] 521 Protrusion

[0086] 130, 530, 550 light source units

[0087] 131, 531 light source substrate

[0088] 132, 532 printed substrate

[0089] 133, 533 light source

[0090] 134, 234, 334, 434, 534 cover

[0091] 134A, 534A Light exit cover

[0092] 134B, 534B support cover

[0093] 134801, 534801 First flat part

[0094] 134802, 534802 Internal protrusion

[0095] 134803, 534803 Substrate support

[0096] 134804, 434804, 534804 Second flat part

[0097] 134805, 234805, 334805, 534805 Interval

[0098] 134806, 234806, 334806, 434806, 534806, 534811 Rear component mounting section

[0099] 134807, 234807, 334807, 434807, 534807 Third flat part

[0100] 134808 Reflector

[0101] 134809, 234809, 334809, 434809, 534806H, 534811H, ​​536BH, 536GH, 536TH mounting holes

[0102] 534810 Contact Department

[0103] 135, 535 Connecting spring

[0104] 135A Connecting spring (back part, light source unit side connecting part)

[0105] 135Aa Spring front end

[0106] 135Ab Framework

[0107] 135Ac Coil spring part

[0108] 135Ad Card Fixing Department

[0109] 135B, 535B Spring retainer

[0110] 135Ba Board

[0111] 135Bb Spring fixing part

[0112] 135Bc Hole

[0113] 135Bd Arch

[0114] 135Be Protrusion

[0115] 135D, 135D2 Spring protection

[0116] 135F, 136F, 536F Fasteners

[0117] 136, 536 Power supply unit (back part)

[0118] 136A, 536A Power Supply Main Unit

[0119] 136B, 536B, 536T Power supply installation

[0120] 136Bc Hole

[0121] 536G Mounting Plate

[0122] 536N Nut

[0123] 137 Wireless Module

[0124] 138 AC cable for light source unit

[0125] 139 LED driver cable

[0126] 140, 540 end cap

[0127] 141 cover

[0128] 142 Frame

[0129] 143a Screw receiving part

[0130] 143b Fixed part

[0131] 143c Through hole

[0132] 170 Lighting control device

[0133] 171 Lighting Control Program

[0134] 178 Wireless

[0135] 190 Ceiling

[0136] 196 Suspension bolt

[0137] 197 Nut

[0138] 198 Light cord DETAILED DESCRIPTION

[0139] <Implementation Method 1>

[0140] <Summary>

[0141] A lighting fixture 100 according to the present embodiment will be described with reference to the drawings. Figure 1 The illuminating device 100 is shown in a perspective view viewed from an oblique downward direction. The illuminating device 100 is configured by attaching a light source unit 130 to a device body 110, and is attached to a ceiling 190 as an example of an attachment target, and irradiates light toward a room.

[0142] The lighting fixture 100 can also be installed on a wall or on the ground. However, no matter which direction it is installed, the direction relative to the lighting fixture 100 is marked as Z. F -Z B direction, etc., and for ease of understanding, Z is sometimes B The direction mark is down. That is, the mark such as down is a term used to explain the direction of the lighting fixture and has nothing to do with down in the direction of gravity.

[0143] In addition, the various figures referred to in this specification are schematically represented, for example, a part of the structure is omitted or exaggerated, etc., so as to facilitate understanding of the present invention. In addition, when describing the structure of a component having a left-right symmetrical shape, in the case where it becomes obvious to repeat the same description, sometimes only one side of the left and right is described to avoid duplication.

[0144] <Lighting control device>

[0145] Figure 1 The lighting control device 170 in the embodiment is composed of a tablet, a smart phone, a PC, etc., and is installed with a lighting control program 171 (not shown). The user can operate the lighting control program 171, communicate with the lighting fixture 100 via wireless 178, and change the lighting conditions. The lighting conditions include hue (color adjustment), brightness (dimming), and lighting / extinguishing. In addition to manual control, a schedule operation can be performed to automatically change the lighting conditions at a set time according to a pre-registered schedule.

[0146] The lighting control device 170 is not essential, and even when the lighting control device 170 is not provided, the lighting fixture 100 can be turned on / off by turning on / off the light cord. The lighting control device may be a wired control device.

[0147] <Light source unit>

[0148] As seen from the right side view Figure 2 (a) and the top view from the top, i.e. Figure 2 As shown in FIG. 8( b ), the light source unit 130 includes a cover portion 134 , a power supply portion 136 , and a connecting spring portion 135 .

[0149] <Cover>

[0150] Figure 3 Shows Figure 2 FIG. 2 is an end view of the cut portion of the device body 110 taken along line AA′ shown in FIG.

[0151] The cover 134 is a hollow structure component composed of a light emitting cover 134A provided on the front side of the light source 133 and a support cover 134B provided on the rear side of the light source substrate 131. The light emitting cover 134A is light-transmissive and light diffusion material is appropriately dispersed. The support cover is white in a manner that has almost no light-transmissivity, but can also be colored in other colors such as gray or black by using a resin with high thermal conductivity. The light emitting cover 134A and the support cover 134B are integrally extruded by a two-color molding method. The material of the cover 134 is resin, preferably polycarbonate or acrylic.

[0152] Since the cover 134 has a hollow structure in which the light emitting cover 134A and the supporting cover 134B are integrated, it is light in weight and has sufficient strength, thereby suppressing the bending in the longitudinal direction of the cover 134. Since the conventional support body is composed of a long flat plate, it is easy to bend (bend) in the longitudinal direction, but even if the supporting cover 134B of the cover 134 wants to bend, the light emitting cover 134A having the side surface will not bend, so it has the advantage of not being bent as a whole.

[0153] <Light emission cover>

[0154] The light exit cover portion 134A is formed of a curved surface, and has a function of transmitting and appropriately diffusing the light emitted by the light source 133. Alternatively, the light exit cover portion 134A may be made transparent by suppressing the diffusibility.

[0155] <Support Cover>

[0156] like Figure 3As shown, the support cover portion 134B includes a first flat portion 134801 , an inner protrusion 134802 , a substrate support portion 134803 , a second flat portion 134804 , a spacer 134805 , a back component mounting portion 134806 , a third flat portion 134807 , and a reflective portion 134808 .

[0157] The back component mounting portion 134806 protrudes from the second flat portion 134804 and the third flat portion 134807 forming the outer periphery of the cover portion 134 of the hollow structure to the outside of the hollow structure, and is not a portion forming the outer periphery of the hollow structure.

[0158] The light source substrate 131 described later is installed in close contact with or close to the lower surface of the first flat portion 134801 (the inner side of the support cover 134B), and at this time, the substrate support portion 134803 protruding inward from the lower end portion of the internal protrusion 134802 supports the light source substrate 131, and the internal protrusion 134802 protrudes downward from the first flat portion 134801. In addition, when the light source substrate 131 is bonded to the first flat portion 134801, the internal protrusion 134802 and the substrate support portion 134803 may be omitted, but may also be retained in order to maintain the support state when the bonding force is reduced.

[0159] One side of the first flat portion 134801 and the second flat portion 134804 is located inside the hollow structure, and the other side is exposed to the outside of the hollow structure. Therefore, the heat generated by the light source substrate 131 is easily discharged to the outside through the first flat portion 134801. Therefore, it is preferred that at least the first flat portion 134801 is made of a resin with a higher thermal conductivity than 134A. Considering the manufacturing by two-color molding, it is preferred that the support cover 134B as a whole is made of a resin with a higher thermal conductivity than the light emitting cover 134A.

[0160] Reference Figure 3 , the light source unit 130 is pulled up to the side of the device body 110 by the connection spring portion 135, so that the third flat portion 134807 contacts the front end of the long side surface portion 115 of the device body 110. The third flat portion 134807 to the first flat portion 134801 becomes an opaque cover, thereby eliminating the loss of light from the light source 133 toward the storage recess 112. Since the support cover portion 134B is made of resin, it is difficult to make it completely opaque, and it only needs to be less translucent than the light-transmitting light-emitting cover portion 134A.

[0161] The back component mounting portion 134806 is provided at a distance from the second flat portion 134804 by the spacer portion 134805 so as to allow the supporting portion of the back component (spring retaining portion 135B, etc.) to enter.

[0162] The reflective portion 134808 is a component located between the terminal end of the second flat portion 134804 and the boundary A / B of the two-color molding. This component has the function of re-reflecting the light P emitted from the light source 133a and reflected by the light exit cover portion 134A and returning, and making the light exit cover portion 134A emit bright light near its boundary A / B.

[0163] <Light source substrate, light source>

[0164] like Figure 4 As shown in FIG. 1 , the light source substrate 131 has a plurality of light sources 133 composed of surface-mounted LEDs arranged in a row at intervals along the length direction on a strip-shaped printed substrate 132. Figure 1 As shown, the number of columns of the light source 133 is 2, but it can also be 1, or more than 3. In addition to the surface mounted LED, a COB (Chip On Board) type LED or a CSP (Chip Scale Package) type LED in which the following blue LED chip is mounted on a substrate can also be used.

[0165] The light source 133 preferably uses an LED in which a blue LED chip having an InGaN light emitting layer is sealed with a sealing resin containing a phosphor. The emission color can be adjusted by the type and amount of the phosphor.

[0166] As the light source 133, for example, only one LED of luminous color may be used, or two LEDs of luminous colors (for example, daylight color (color temperature 6500K) and bulb color (color temperature 2700K)) may be alternately configured. By using these two LEDs, a color change (color adjustment) roughly along the black body radiation can be achieved.

[0167] Furthermore, LEDs of three luminous colors may be arranged in a color mixing manner. For example, by using LEDs of three colors, red (R), green (G), and blue (B), a very wide range of luminous colors can be obtained.

[0168] Another example of a light source emitting light of three colors may be a combination of a red LED, a yellowish-white LED, and a blueish-white LED as described below.

[0169] The red LED (R) emits light with a chromaticity in a range surrounded by (0.66, 0.23), (0.423, 0.355), (0.5, 0.5), and (0.736, 0.264) in the CIE1931 chromaticity coordinates, and as an example, is (0.60, 0.38).

[0170] The yellow-white LED (Yw) emits light with a chromaticity in the range surrounded by (0.5, 0.5), (0.423, 0.355), (0.342, 0.312), (0.352, 0.44), (0.37, 0.63) and the chromaticity boundary line in the CIE1931 chromaticity coordinates, and as an example, is (0.44, 0.47).

[0171] The bluish white LED (Bw) emits light with a chromaticity in a range surrounded by (0.336, 0.24), (0.352, 0.44), (0.15, 0.2), and (0.2, 0.1) in the CIE1931 chromaticity coordinates, and is (0.23, 0.26) as an example.

[0172] Compared with B (blue) light having a spectrum close to monochromatic, Bw (blue-white) light mixed with other spectra having relatively high visibility has high visibility. Therefore, when using R·Yw·Bw three-color light-emitting elements, it has the advantage of being able to achieve relatively good power beam conversion efficiency (1m / W) compared to the case of using R·G·B three-primary color light-emitting elements.

[0173] <End Cap>

[0174] like Figure 2 As shown, the end cap 140 is a component installed at the end portion of the short side of the cover portion 134 .

[0175] As from Y F The main view from the direction is Figure 5 (a) and from Z B The top view from the direction is Figure 5 As shown in (b) in Figure 2 Y in (a) B The end cap 140 at the side end portion has a cover portion 141, a frame portion 142, a screw receiving portion 143a, and a fixing portion 143b. The frame portion 142 is inserted into the interior of the area surrounded by the light emitting cover portion 134A, the reflecting portion 134808, the first flat portion 134801, and the second flat portion 134804. The screw receiving portion 143a is a component provided with a through hole 143c. The fixing portion 143b is a component inserted and fitted into a groove provided at the support cover portion 134B, and is provided with a through hole 143c having a wider aperture than the through hole of the screw receiving portion 143a. The screw receiving portion 143a and the fixing portion 143b are used for fixing the end cap 140 and the support cover portion 134B. The fixing of the end cap 140 and the support cover portion 134B will be described later.

[0176] In addition, a notch N1 is provided in the end cover 140. The notch N1 is used to insert the LED driving cable 139 (see FIG. 1 ) required for connecting the light source and the power supply unit 136. Figure 2(b) in the figure.

[0177] As a material of the end cap 140, the same resin as the light emission cover portion 134A or a resin having the same degree of light translucency is preferably used.

[0178] <Power supply>

[0179] Referring to the power supply unit 136 including the light source unit 130 Figure 2 The end view of the cut section of the CC' line is Figure 6 and Fig. 9 The power supply unit 136, which is one of the back components, has the function of converting the AC power supplied from the AC cable 138 on the light source unit side into DC power for driving the light source and supplying it to the light source through the LED drive cable 139. The output of the power supply unit 136 may be fixed, but it may also be controlled from the outside, and in this case, the wireless module 137 may also receive a control signal from the outside.

[0180] The power supply unit 136 is mainly composed of a power supply main unit 136A and a power supply mounting unit 136B. The power supply mounting unit 136B is mounted on the back component mounting unit 134806 of the support cover 134B using fasteners 136F such as screws and rivets.

[0181] The power supply mounting portion 136B is a component for holding the power supply main portion 136A and mounted on the cover portion 134 of the light source unit. In order to mount the power supply mounting portion 136B on the rear component mounting portion 134806, as shown in FIG. Figure 6 As shown, fasteners 136F such as screws or rivets are passed through mounting holes 134809 of the back component mounting portion 134806 and hole 136Bc of the power supply mounting portion 136B, and are mounted using fasteners 136F. Figure 6 The fastener 136F is shown as a screw, but it may also be a rivet.

[0182] <Connecting spring part>

[0183] Figure 7 (a) shows a perspective view of the connecting spring portion 135 as a light source unit side connecting member, Figure 8 The light source unit 130 is shown Figure 2 The connecting spring portion 135, which is one of the back parts, is a light source unit side connecting part that is mounted on the upper surface of the support cover portion 134B and connects the light source unit 130 to the device body 110 by engaging with the spring seat 117 of the device body 110.

[0184] like Figure 7As shown in (a) in FIG. 1 , the connecting spring portion 135 includes a connecting spring 135A, a spring holding portion 135B, a spring protection portion 135D, and a fastener 135F.

[0185] As an example, the connection spring 135A is a double torsion spring formed by bending a spring wire, etc. The connection spring 135A includes a spring front end portion 135Aa, a frame portion 135Ab connected to the spring front end portion, a coil spring portion 135Ac continuous with the frame portion and bent into a spiral shape, and a rod-shaped portion 135Ad continuous with the coil spring portion and locked on the spring holding portion 135B.

[0186] The spring holding portion 135B is a component for holding the connection spring 135A and mounted on the cover portion 134 of the light source unit. In order to mount the spring holding portion 135B on the rear component mounting portion 134806, as shown in FIG. Figure 7 (a) and Figure 8 As shown, fasteners 135F such as screws or rivets are passed through mounting holes 134809 of the back component mounting portion 134806 and the hole 135Bc of the spring retaining portion 135B, and are mounted using fasteners 135F. Figure 7 (a) in the figure is a figure in which the fastener 135F is a screw. Figure 8 The fastener 135F is a rivet, but by Figure 7 The pattern of the part where the positive screw is placed in (a) is considered to be a circle and can be regarded as a rivet. Figure 8 In the figure, by regarding the lower side of the fastener 135F as a nut, it can be regarded as representing the case where the fastener 135F is a screw and a nut.

[0187] The spring holding portion 135B is formed by bending a metal plate, etc. The spring holding portion 135B includes a plate portion 135Ba, a spring fixing portion 135Bb, a hole portion 135Bc through which the fastener 135F passes, and an arch portion 135Bd. The plate portion 135Ba is a plate-like portion, and is fixed to the surface of the support cover portion 134B opposite to the surface on which the light source substrate 131 is mounted. The spring fixing portion 135Bb is a flat plate-like portion to which the coil spring portion 135Ac of the connecting spring 135A is clamped. The hole portion 135Bc is a hole provided on the plate portion 135Ba, and may also be cut with threads (tapped) for fixing the plate portion 135Ba and the supporting cover portion 134B (threads are not required in the case of nut fixing or rivet fixing). The arch portion 135Bd is a portion processed into an arch shape, and the clamping portion 135Ad of the connecting spring 135A is inserted through and clamped in the arch. The protrusion 135Be is a portion that is bent and raised at the end of the plate portion 135Ba.

[0188] The spring protection part 135D is a metal plate used to prevent the front end 135Aa of the spring from violently colliding with the support cover 134B under the force of the spring and damaging the support cover 134B, and is an unnecessary component when the support body is made of metal. The spring protection part 135D is also mounted on the back part mounting part 134806 of the light source unit using the fastener 135F.

[0189] The plate portion 135Ba of the spring retaining portion 135B and the spring protection portion 135D are mounted on the back component mounting portion 134806 of the cover portion using fasteners 135F. At this time, the plate portion 135Ba and the back component mounting portion 134806 of the cover portion 134 are in surface contact within a distance W, whereby the force is dispersed, thereby preventing the cover portion 134 from being broken or fatigued.

[0190] Figure 7 (b) is a stereoscopic view of a case where the plate-shaped spring protection portion 135D is replaced with a spring protection portion 135D2 of an elastic body (rubber, etc.). The spring protection portion 135D2 is, for example, a rectangular parallelepiped and is fixed to the first flat portion 134801, etc., using an adhesive. In addition, the spring protection portion 135D2 may also extend to the lower side of the back component mounting portion 134806 along the X direction.

[0191] <Device body>

[0192] Fig. 9 1 is a perspective view of the lighting fixture 100 showing a state where the light source unit 130 and the fixture body 110 are separated. The fixture body 110 includes a housing 111 , a spring seat 117 disposed on a bottom surface 114 of the housing 111 , and a terminal block 118 .

[0193] If the cross-sectional view Figure 3 As shown, the housing 111 includes a long strip bottom portion 114 and a long edge Z extending from the bottom portion 114. F The two long side surface portions 115 extending in the X direction are formed. F The storage recess 112 is open in the direction and can store the rear member of the light source unit.

[0194] The bottom surface 114 is provided with a lamp line insertion hole 120A for passing an electric wire such as a lamp line 198 exposed from the ceiling 190 and used to supply power to the lighting fixture 100. In addition, the bottom surface 114 is provided with two device mounting holes 120B at positions near both ends in the longitudinal direction. These device mounting holes 120B are used to pass the suspension bolts 196 exposed from the ceiling 190 or the screws for mounting the device body to the reinforcement part of the ceiling 190. When fixing with the suspension bolts, refer to Fig. 9After the suspension bolts 196 pass through the device mounting holes 120B respectively, nuts 197 (which can also be used together with washers and spring washers) are tightened on the suspension bolts 196, thereby fixing the device body 110 on the ceiling 190.

[0195] <Spring Seat>

[0196] Fig.10 A perspective view of a spring seat as a device body side connecting member for connecting with a connecting spring portion 135 as a light source unit side connecting member to integrate the light source unit and the device body is shown. Fig.10 As shown, the spring seat 117 includes a spring seat fixing portion 117A mounted on the bottom surface portion 114 of the device body and a spring seat fixing portion 117A extending from the bottom surface portion along the Z direction. F The spring seat main part 117B protrudes in the direction of the spring seat main part 117B, and has a hook part 117D and a spring insertion hole 117C. The hook part 117D has a wide and flat hook shape, and is connected to the frame part 135Ab of the spring 135A (see Figure 6 ) is hooked. The spring insertion hole 117C is a substantially rectangular hole, and the frame portion 135Ab of the connecting spring 135A is inserted therein in the light source unit setting state described later. In addition, the spring seat 117 is usually formed by drilling, bending, etc. a metal plate.

[0197] <Terminal block and lamp cord insertion hole>

[0198] The terminal block 118 provided on the bottom portion 114 has the functions of connecting the lamp cord 198 entering into the device body through the lamp cord insertion hole 120A and connecting the device body side AC cable 119 connected to the power supply unit 136 .

[0199] <Mounting hole>

[0200] The bottom surface portion 114 of the device body is provided with device mounting holes 120B for mounting the device body 110 on the ceiling 190 by passing suspension bolts 196 therethrough and fastening them with nuts 197. After the suspension bolts 196 are passed through the device mounting holes 120B, the nuts 197 are fastened to the suspension bolts 196, thereby fixing the device body 110 on the ceiling 190.

[0201] <Assembly of light source unit>

[0202] (1) Install the light source substrate 131 inside the support cover 134B

[0203] From the Y of the cover portion 134 F or Y BThe light source substrate 131 is slid along the length direction of the support cover 134B so that the long side of the light source substrate 131 and its vicinity are located at the opening on the side. Figure 3 The support cover 134B is within the area surrounded by the first flat portion 134801, the internal protrusion 134802, and the substrate supporting portion 134803.

[0204] (2) Attach the back component (connecting spring portion 135, spring protection portion 135D, power supply portion 136) to the support cover portion 134B (fix with screws or rivets).

[0205] The mounting of the rear surface member will be described by taking the connecting spring portion 135 as an example.

[0206] In order to mount the connecting spring portion 135 on the supporting cover portion 134B, F or Y B side, Figure 6 The plate portion 135Ba of the connecting spring portion 135 is located at Figure 7 The second flat portion 134804 of the support cover 134B is slid between the back component mounting portion 134806. Then, align the hole 135Bc of the spring holding portion 135B of the connecting spring portion 135 with the mounting hole 134809 of the back component mounting portion 134806, and then slide the second flat portion 134804 of the support cover 134B between the back component mounting portion 134806 and the back component mounting portion 134806. B Install fastener 135F in mounting hole 134809 on the side.

[0207] When the fastener 135F is a rivet, it is not necessary to provide a threaded tooth at the mounting hole 134809. In addition, when the fastener 135F is a screw, a nut may be placed under the plate portion 135Ba to tighten the screw and the nut.

[0208] Compared with screw fixing, rivet fixing has the advantage of simplifying the work, but on the other hand, it has the disadvantage that the back part cannot be disassembled due to the deformation of the rivet. Therefore, it is desirable to decide which fastening means to use in consideration of the necessity of disassembling the back part for repair, etc. In addition, other fastening means such as fastening with an adhesive or a tape may also be used.

[0209] (3) Connect the LED drive cable 139 to the power supply unit 136

[0210] The LED driving cable 139 is connected to the end of the light source substrate 131 , and is pulled out to the outside of the cover portion 134 of the hollow structure through the notch N1 of the end cover, and is connected to the power supply portion 136 .

[0211] (4) Install the end cover 140 to the cover portion 134

[0212] Reference Figure 5The end cover 140 is installed so that the frame portion 142 of the end cover 140 enters the interior of the hollow cover portion 134 relative to the opening portion of the cover portion 134 .

[0213] Here, in the support cover part 134B, a through hole is provided at a portion overlapping with the through hole of the fixing part 143b. In this state, a self-tapping screw is fastened to the through hole of the screw receiving part 143a from the fixing part 143b side through the through hole of the fixing part 143b and the through hole of the back part mounting part 134806. The self-tapping screw is screwed into the through hole of the screw receiving part 143a. As a result, the back part mounting part 134806 is clamped by the screw receiving part 143a and the fixing part 143b, and the end cover 140 and the cover part 134 are fixed.

[0214] <Install the device body on the ceiling and attach the light source unit to the device body>

[0215] The lighting fixture 100 is installed on the ceiling in the following order. Alternatively, the lighting fixture 100 may be installed on a rod-shaped fitting such as a roller track instead of on the ceiling.

[0216] (1)Reference Fig. 9 , two suspension bolts 196 extending from the ceiling side are passed through the device mounting holes 120B of the device body 110, and nuts 197 are tightened, thereby fixing the device body 110 to the ceiling 190. Alternatively, the device body 110 may be fixed to the reinforcement portion of the ceiling 190 by screwing the device body 110 to the ceiling 190 from below the device mounting holes 120B without using suspension bolts.

[0217] (2) The lamp wire 198 on the ceiling 190 side is passed through the lamp wire insertion hole 120A and connected to the terminal block 118 .

[0218] (3) The connection springs 135A of the two connection spring portions 135 on the light source unit 130 side are hooked on the hook portions 117D of the spring seat 117 on the equipment body 110 side. This state is referred to as a "light source unit locked state".

[0219] (4) In the locked state, the connector (not shown) of the device body side AC cable 119 extending from the terminal block 118 of the device body 110 is connected to the connector (not shown) of the light source unit side AC cable 138 extending from the light source unit 130 .

[0220] (5) Push the light source unit 130 upward. In this way, the connecting spring 135A enters the spring insertion hole 117C of the spring seat 117. The light source unit 130 is pulled upward by the force of the spring, and the support cover 134B of the light source unit 130 is pressed against the device body 110 and contacts. This state is Figure 1The lighting fixture 100 shown is referred to as a “light source unit setting state”.

[0221] <Modification of the cover>

[0222] Fig.11 (a) Fig.11 (b) Fig.11 (c) is a cross-sectional view of cover parts 234, 334, and 434 as modified examples of cover part 134. The positions of parts corresponding to mounting hole 134809, i.e. mounting hole 234809, mounting hole 334809, and mounting hole 434809, which are provided on back part mounting part 234806, back part mounting part 334806, and back part mounting part 434806, are indicated by single-dot chain lines.

[0223] exist Fig.11 In the cover 234 shown in (a) in FIG. 1 , the third flat portion 234807 corresponding to the third flat portion 134807 is connected to the middle portion of the spacer 234805 corresponding to the spacer 134805. Therefore, the distance between the light source and the cover 234 is slightly wider than that in the case of the cover 134. The back component mounting portion 234806 extends from the front end of the spacer 234805 toward the inside.

[0224] exist Fig.11 In the cover 334 shown in (b) in FIG. 1 , the third flat portion 334807 corresponding to the third flat portion 134807 is connected to the lower end of the spacer 334805 corresponding to the spacer 134805. Therefore, the distance between the light source and the cover 334 is further widened compared with the case of the cover 134. The back component mounting portion 334806 extends from the front end of the spacer 234805 toward the inside.

[0225] exist Fig.11 In the cover portion 434 shown in (c), the third flat portion 434807 corresponding to the third flat portion 134807 is connected to the second flat portion 434804 corresponding to the second flat portion 134804, and the back component mounting portion 434B 06 extends upward from the connecting portion. The mounting of the back component on such a longitudinally extending back component mounting portion will be described in detail in Embodiment 3.

[0226] <Implementation Method 2>

[0227] <Summary>

[0228] The lighting fixture 500 of the present embodiment has a narrower width in the X direction than the lighting fixture 100 , and has a fixture shape that takes design into consideration. The lighting fixture 500 is configured by attaching a light source unit 530 to a fixture body 510 .

[0229] <Light source unit>

[0230] As from X F The side view of the direction is Fig.12 (a) and from Z B The top view of the direction is Fig.12 As shown in (b) of FIG. 5 , the light source unit 530 includes a cover portion 534, a power supply portion 536, and a connecting spring portion 535. As the width of the light source unit 530 becomes narrower, the power supply mounting portion 536B is provided along the Y direction of the power supply main portion 536A instead of along the X direction.

[0231] <Cover>

[0232] Fig.13 Shows Fig.12 2 is a cross-sectional view showing only the main part of the lighting fixture 500 taken along line AA′ near the power supply unit 536 shown in (b).

[0233] The cover 534 is a hollow component composed of a light emitting cover 534A provided on the front side of the light source 533 and a support cover 534B provided on the rear side of the light source substrate 531 (printed substrate 532). The light emitting cover 534A is light-transmissive and light diffusion material is appropriately dispersed. The support cover is white in a manner that is almost non-light-transmissive, but can also be colored in other colors such as gray or black by using a resin with high thermal conductivity. The light emitting cover 534A and the support cover 534B are extruded integrally by a two-color molding method. The material of the cover 534 is resin, preferably polycarbonate or acrylic.

[0234] Since the cover portion 534 has a hollow structure in which the light emitting cover portion 534A and the supporting cover portion 534B are integrated, the cover portion 534 is lightweight and the deflection in the longitudinal direction of the cover portion 534 is suppressed.

[0235] <Light emission cover>

[0236] The side surfaces and the front surface of the light emitting cover 534A are formed by planes, and have the function of transmitting and appropriately diffusing the light emitted by the light source 533. Alternatively, the light emitting cover 534A may be made transparent by suppressing the diffusibility.

[0237] <Support Cover>

[0238] like Fig.13 As shown, the support cover portion 534B includes a first flat portion 534801 , an inner protrusion 534802 , a substrate support portion 534803 , a second flat portion 534804 , a spacer 534805 , a back component mounting portion 534806 , a third flat portion 534807 , and a contact portion 534810 .

[0239] The back component mounting portion 534806 protrudes from the spacer portion 534805 and the third flat portion 534807 on the outer periphery of the cover portion 534 forming the hollow structure, and is not a portion forming the hollow structure.

[0240] One side of the first flat portion 534801 and the second flat portion 534804 is the inner side of the hollow structure, and the other side is exposed to the outer side of the hollow structure. Therefore, the heat generated by the light source substrate 531 is easily discharged to the outside through the first flat portion 534801. Therefore, it is preferred that at least the first flat portion 534801 is made of a resin with a higher thermal conductivity than 534A. Considering the manufacturing by two-color molding, it is preferred that the support cover portion 534B as a whole is made of a resin with a higher thermal conductivity than the light emitting cover portion 534A.

[0241] The back component mounting portion 534806 is provided at a distance from the second flat portion 534804 through the spacer 534805, and allows the mounting plate 536G provided with a threaded (tapped) hole to enter.

[0242] <Light source substrate>

[0243] On the light source substrate 531, a plurality of light sources 533 composed of surface-mounted LEDs are arranged in a row at intervals along the length direction on a long printed substrate 532. Fig.13 As shown, the number of columns in which the light source 533 is arranged is 1 column.

[0244] <Device body>

[0245] The device body 510 includes a housing 511 , a spring seat 117 disposed on a bottom surface 514 of the housing 511 , and a terminal block 118 .

[0246] If the cross-sectional view Fig.13 As shown, the housing 511 includes a long strip bottom portion 514 and a long edge Z extending from the bottom portion 514. F The two long side surface portions 515 extending in the X direction are formed. F The storage recess 512 is open in the Z direction and can store the back part of the light source unit. In addition, a protrusion 521 is provided near the opening of the long side surface portion 515. B The contact portion 534810 of the light source unit whose direction is lifted comes into contact with the protrusion 521, thereby fixing the light source unit.

[0247] <Install the power supply unit on its support cover>

[0248] Reference Fig.13The power supply unit 536, which is one of the back components, has the function of converting the AC power supplied from the AC cable on the light source unit side into DC power for driving the light source and supplying it to the light source through the LED driving cable.

[0249] The power supply unit 536 includes a power supply main unit 536A and a power supply mounting unit 536B. The power supply mounting unit 536B is mounted on a mounting plate 536G having a threaded mounting hole 536GH, through a mounting hole 536BH provided on the power supply mounting unit 536B and a mounting hole 534806H provided on the back member mounting unit 534806, using fasteners 536F such as screws, thereby mounting the power supply mounting unit 536B on the support cover 534B. In addition, rivets may be used for mounting, and in this case, the mounting plate 536G is not required.

[0250] <Install the connecting spring part on its supporting cover part>

[0251] The spring holding portion 535B of the connecting spring portion 535 is also mounted on the supporting cover portion 534B in the same manner as the power source mounting portion 536B is mounted on the supporting cover portion 534B.

[0252] <Implementation Method 3>

[0253] <Summary>

[0254] The light source unit 550 of the present embodiment is different from the light source unit 530 in the mounting structure of the rear surface member.

[0255] <Cover>

[0256] Fig.14 A cross-sectional view showing only the main parts of the vicinity of the power supply section 536 of the light source unit 550 is shown.

[0257] The cover portion 534 has a hollow structure in which a light emitting cover portion 534A and a supporting cover portion 534B are integrated.

[0258] <Secure the power supply unit onto the support cover>

[0259] like Fig.13 As shown, the support cover portion 534B includes a third flat portion 534807 extending in the longitudinal direction (Z B The back component mounting portion 534811 extends in a direction (in a rear direction), and a mounting hole 534811H is provided on the back component mounting portion 534811.

[0260] <Install the power supply unit on its support cover>

[0261] Reference Fig.14, through the mounting hole 536TH provided on the power supply mounting portion 536T and the mounting hole 534811H provided on the back component mounting portion 534B 11 of the support cover portion 534B, and mounted on the nut 536N using a fastener 536F such as a screw. In addition to screws, rivets can also be used for mounting, and in this case, the nut 536N is not required. Since the power supply mounting portion 536T is located at the Y of the power supply main portion 536A, F Side and Y B Since it is provided at two places on the side, it can be installed sufficiently stably, but it can also be installed in other parts.

[0262] In addition, for other rear components such as a connecting spring, a portion corresponding to the power supply mounting portion 536T extending in the longitudinal direction can also be provided and mounted using the rear component mounting portion 534811 of the light source unit.

[0263] <Other Variations>

[0264] As mentioned above, although the embodiment of the lighting fixture of the present invention is described, the lighting fixture illustrated can also be modified as follows, for example, and it is needless to say that the present invention is not limited to the lighting fixture shown in the above embodiment.

[0265] Although the light source unit of the embodiment is used in combination with the equipment body, it may be mounted on a lighting rail (lighting duct) or a raceway that functions as the equipment body, or may be directly mounted on an installation object such as a ceiling without using the equipment body.

[0266] The hollow cover is not limited to a hollow shape with a closed cross-sectional shape, and a hole may be provided. In addition, in the cross-sectional shape, there may be a cut in the X direction shorter than the width in the X direction or a cut in the Z direction shorter than the height in the Z direction.

[0267] In the example of implementation mode 1, a structure is adopted in which the wireless module 137 is inserted into a slot provided in the power supply portion 136, but an independent communication unit (a unit having the same function as the wireless module) may be installed on the cover portion as a back component. In this case, the mounting portion of the communication unit (equivalent to the portion of the power supply mounting portion 136B) may be installed on the "back component mounting portion 134806" of the cover portion.

[0268] The device body is described using an inverted triangle in embodiment 1 and a groove-shaped device body in embodiments 2 and 3. However, in any embodiment, the device body may be an inverted triangle, a groove, a lower surface open shape, or other shapes.

[0269] In addition to mounting the light source on the surface of the light source substrate, for example, the light source 133 may be directly mounted on the support cover 134B without using the light source substrate 131 .

[0270] The substrate is not limited to a printed substrate, and a metal core substrate (a substrate having an insulating film provided on the surface of a metal plate and a wiring pattern provided thereon) or a ceramic substrate having a wiring pattern formed on the surface may also be used. In this way, the material of the substrate is not particularly limited. In addition, the board portion of a COB type LED or the package portion of a surface mounted LED may also serve as a substrate without using a printed substrate or the like.

[0271] The boundary A / B of the two-color molding of the cover is as long as it is along the Z direction of the light source. B The direction has a light exit cover (A), a Z direction along the light source F The direction has a support cover (B) and can be set at any position in the middle.

[0272] The cover may be formed in three colors instead of two colors. For example, the reflective portion 134808 may be white, and the first flat portion 134801 as the part for mounting the light source substrate may be a colored resin with high thermal conductivity. In this case, the color of the support cover is not particularly limited.

[0273] In the embodiment, the connection spring part is on the light source unit side and the spring receiving part is on the device body side, but the connection spring part may be on the device body side and the spring receiving part may be on the light source unit side. In this case, the spring receiving part as the light source unit side connection part is mounted on the light source unit as a back part.

[0274] As the connection spring, a linear double torsion spring is shown, but the shape is not limited to a curved plate-shaped spring, etc. As long as it is a member for connection, it does not need to have elasticity.

[0275] The various parts of the present invention are not limited to the above-mentioned embodiments and variations, and various modifications can be made within the technical scope of the claims. For example, the various parts of the above-mentioned lighting fixture can be applied to various lighting fixtures, and are not limited to lighting fixtures related to LEDs.

[0276] The above-described embodiment and each modified example may be partially combined.

Claims

1. A light source unit, comprising a cover, a light source substrate and a back member, characterized in that: The light source substrate comprises a substrate and a light source. The cover has a hollow structure, in which a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are integrally formed. A flat portion for mounting the light source substrate is provided on the inner side of the support cover, the light source substrate is mounted in close contact with or close to the inner side of the support cover, and the outer side of the flat portion is exposed to the outside. The rear surface member includes a light source unit-side connecting member and is mountable on a rear surface member mounting portion of the support cover that protrudes to the outside of the hollow structure.

2. The light source unit according to claim 1, characterized in that: A mounting hole is formed at the rear member mounting portion.

3. The light source unit according to claim 1, characterized in that: The back surface component includes at least one component selected from a power supply, a communication unit, and a spring protection portion.

4. The light source unit according to claim 1, characterized in that: The light emitting cover portion is light-transmissive, The support cover portion has lower light transmittance than the light exit cover portion.

5. A lighting fixture comprising a fixture body and a light source unit, wherein the fixture body includes a fixture body side connecting member, characterized in that: The light source unit includes a cover, a light source substrate and a back component. The light source substrate comprises a substrate and a light source. The cover has a hollow structure, in which a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are integrally formed. A flat portion for mounting the light source substrate is provided on the inner side of the support cover, the light source substrate is mounted in close contact with or close to the inner side of the support cover, and the outer side of the flat portion is exposed to the outside. The back member can be mounted on a back member mounting portion of the support cover that protrudes outward from the support cover. The back member includes a light source unit side connecting member, The equipment body and the light source unit are integrated by coupling the equipment body-side coupling member and the light source unit-side coupling member.

6. The lighting fixture according to claim 5, characterized in that: By coupling the equipment body side coupling member and the light source unit side coupling member, the cover portion contacts the front end of the long side surface of the equipment body or the protrusion provided on the long side surface, and the light source unit is fixed to the equipment body.

7. The lighting fixture according to claim 5, characterized in that: A mounting hole is formed at the rear member mounting portion.

8. The lighting fixture according to claim 5, characterized in that: The back surface component includes at least one component selected from a power supply, a communication unit, and a spring protection portion.

9. The lighting fixture according to claim 5, characterized in that: The light emitting cover portion is light-transmissive, The support cover portion has lower light transmittance than the light exit cover portion.

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