CN222230375U

CN222230375U - Light source unit and lighting fixture

Info

Publication number: CN222230375U
Application number: CN202420979123.3U
Authority: CN
Inventors: 藤田真也
Original assignee: Endo Lighting Corp
Current assignee: Endo Lighting Corp
Priority date: 2023-05-12
Filing date: 2024-05-08
Publication date: 2024-12-24
Anticipated expiration: 2034-05-08
Also published as: JP7713488B2; JP2024163423A; JP2025133930A

Abstract

The utility model provides a lighting fixture, which solves the heat dissipation problem of a light source unit and the problem of installing a back component, and achieves lightweight. A light source unit includes a cover, a light source substrate and a back component, wherein the light source substrate includes a substrate and a light source, the cover has a hollow structure, a light emitting cover for emitting light emitted from the light source and a supporting cover for supporting the substrate are formed as a whole in the hollow structure, the light source substrate is installed in close contact with or close to the inner side of the supporting cover, the outer side of the flat part is exposed to the outside, the back component includes a light source unit side connecting component, and can be installed on the back component mounting portion of the supporting cover that protrudes to the outside of the hollow structure.

Description

Light source unit and lighting fixture

Technical Field

The present utility model relates to a light source unit and a lighting fixture including the light source unit, and particularly to a lighting fixture in which a fixture body is separated from the light source unit.

Background

One of the lighting fixtures disposed 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 the mounting spring provided in the light source unit is hung on the spring seat provided in the fixture body, the light source unit is pulled toward the lighting fixture side by the elastic force of the mounting spring, and the light source unit is housed in the fixture body.

The lighting device described in patent document 2 includes a device body and a light emitting module, and the light emitting module is disposed in an enclosure made of a light-transmitting resin (corresponding to an LED substrate).

Prior art literature

Patent literature

Patent document 1 Japanese patent laid-open publication No. 2019-207784

Patent document 2 Japanese patent application laid-open No. 2012-084367

Disclosure of utility model

Problems to be solved by the utility model

The lighting device of patent document 1 has a problem that the light source unit has a heavy weight, and as a reason for this, a support body on which a substrate on which an LED is mounted is made of metal is exemplified.

On the other hand, in the lighting device of patent document 2, since the surrounding body made of a light-transmitting resin is used, there is no component corresponding to the metal support body. However, the light-emitting module including the vertical louver is disposed for the purpose of maintaining strength, securing heat dissipation, and the like, and thus, sufficient weight reduction cannot be achieved.

The metal support body supports not only the LED-mounted board on the front surface but also a back surface member such as a connection member between the power supply and the device body. In this case, a threaded hole is provided in the metal support, and a screw is inserted into the threaded hole to fasten the screw, thereby fixing the rear member. As a problem in the case of using a resin as the support, there is no problem in terms of strength of the resin because a hole with a thread is provided in the resin and the resin is fixed. In addition, as a problem in the case of resin having a hollow structure in which the support body is integrated with the front cover, it is difficult to put a tool into the hollow portion of the support body and attach the rear surface member.

The present utility model has been made in view of the above-described problems, and an object thereof is to provide a light fixture which solves the problem of heat dissipation of a light source unit and the problem of mounting a back surface member, and which is light-weighted.

Means for solving the problems

In order to solve the above-described problems, the present utility model is a light source unit including a cover portion having a hollow structure and a light source substrate mounted inside the cover portion, wherein,

The light source substrate includes a substrate and a light source,

A light emitting cover part for emitting light emitted from the light source in the cover part and a supporting cover part for supporting the light source substrate are integrally formed,

The light-emitting cover portion has light transmittance,

The light transmittance of the support cover part is lower than that of the light emitting cover part,

A flat part for mounting the light source substrate is arranged on the inner side of the supporting cover part, the outer side of the flat part is exposed to the outside of the hollow structure,

The light source substrate is mounted closely to or near the flat portion,

A back member can be attached to the outside of the support cover.

The utility model is a light source unit comprising a cover part, a light source substrate and a back surface member, wherein,

The light source substrate includes a substrate and a light source,

The cover part has a hollow structure in which a light emitting cover part emitting light emitted from the light source and a supporting cover part supporting the substrate are integrally formed,

The light source substrate is disposed inside the support cover portion,

The back member is mounted on a back member mounting portion of the support cover portion protruding to an outside of the hollow structure.

In the present utility model, the rear surface member mounting portion may be formed with a hole for mounting the rear surface member.

In the present utility model, 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.

The present utility model is a lighting fixture having a fixture body including a fixture body side coupling member, and a light source unit, wherein,

The light source unit includes a cover portion, a light source substrate, and a back surface member,

The light source substrate includes a substrate and a light source,

The light source substrate is closely contacted or near a flat part arranged on the inner side of the supporting cover part, the outer side of the flat part is exposed to the outside,

The back member can be mounted on the outside of the support cover,

The back surface member includes a light source unit side coupling member,

The fixture body and the light source unit are integrated by coupling the fixture body-side coupling member and the light source unit-side coupling member.

The light source substrate includes a substrate and a light source,

The light source substrate is disposed inside the support cover portion,

The back member is mounted on a back member mounting portion of the support cover portion protruding to an outside of the hollow structure,

The back surface member includes a light source unit side coupling member.

The light source substrate includes a substrate and a light source,

The light source substrate is disposed inside the support cover portion,

The back surface member includes a light source unit side coupling member,

The light transmittance of the support cover part is smaller than that of the light emitting cover part,

The support cover is mounted in contact with the tool body.

ADVANTAGEOUS EFFECTS OF INVENTION

The light source unit of the present utility model is configured such that the light source substrate is mounted on the inner side of the support cover portion of the cover portion having a hollow structure in which the light emission cover portion and the support cover portion are integrated, and the outer side of the support cover portion is exposed, so that heat dissipation can be ensured while the light weight is reduced without using metal.

The light source unit of the present utility model includes a hollow cover portion integrating the light emission cover portion and the support cover portion, and a back member such as a light source unit coupling member can be mounted by providing a back member mounting portion protruding from the support cover portion.

Drawings

Fig. 1 is a perspective view of a lighting fixture.

Fig. 2 is a side view seen from the X _F direction of the light source unit and a top view seen from the Z _B direction.

Fig. 3 is an end view of a cut portion of the lighting fixture viewed from the Y _F direction.

Fig. 4 is a view of the light source substrate from the Z _F direction.

Fig. 5 is a front view from the Y _F direction of the end cap and a top view from the Z _B direction.

Fig. 6 is an end view of a cut-off portion of a power supply portion including a light source unit.

Fig. 7 is a perspective view of the coupling spring portion.

Fig. 8 is a cut-out end view of a connection spring portion including a light source unit.

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

Fig. 10 is a perspective view of a spring seat.

Fig. 11 is a cross-sectional view of a modification of the lid.

Fig. 12 is a side view and a plan view of the light source unit of embodiment 2.

Fig. 13 is a cross-sectional view of the lighting device of embodiment 2.

Fig. 14 is a cross-sectional view of the light source unit of embodiment 3.

Description of the reference numerals

100. 500 Lighting device

110. 510 Appliance body

111. 511 Shell

112. 512 Accommodating recess

114. 514 Bottom surface portion

115. 515 Long side face portion

117. Spring seat (appliance body side connecting part)

117A spring seat fixing portion

117B spring seat main portion

117C spring insertion hole

117D hook

118. Terminal block

119. AC cable on appliance body side

120A electric lamp wire inserting hole

120B appliance mounting hole

521. Protruding part

130. 530, 550 Light source unit

131. 531 Light source substrate

132. 532 Printed substrate

133. 533 Light source

134. 234, 334, 434, 534 Cover

134A, 534A light emitting cover part

134B, 534B support cover

134801, 534801 First flat portion

134802, 534802 Inner tab

134803, 534803 Substrate support

134804, 434804, 534804 Second flat portion

134805, 234805, 334805, 534805 Spacer

134806, 234806, 334806, 434806, 534806, 534811 Back side component mounting portions

134807, 234807, 334807, 434807, 534807 Third flat portion

134808, Reflecting portion

134809, 234809, 334809, 434809, 534806H, 534811H, 536BH, 536GH, 536TH mounting holes

534810, Contact portion

135. 535 Connecting spring part

135A connecting spring (Back surface component, light source unit side connecting component)

Front end of 135Aa spring

135Ab frame part

135Ac spiral spring part

135Ad clamping part

135B, 535B spring holder

135Ba plate part

135Bb spring fixing part

135Bc hole part

135Bd arch

135Be protruding part

135D, 135D2 spring protection part

135F, 136F, 536F fastener

136. 536 Power supply (Back component)

136A, 536A power supply main part

136B, 536T power supply mounting portion

136Bc hole part

536G mounting plate

536N nut

137. Wireless module

138. Light source unit side alternating current cable

139 LED driving cable

140. 540 End cap

141. Cover part

142. Frame part

143A screw receiving part

143B fixing part

143C through hole

170. Lighting control device

171. Lighting control program

178. Wireless communication system

190. Ceiling board

196. Suspension bolt

197. Nut

198. Electric lamp wire

Detailed Description

< Embodiment 1>

< Summary > of the invention

The lighting fixture 100 of the present embodiment is described with reference to the drawings. Fig. 1 shows a perspective view of the lighting fixture 100 from obliquely below. The lighting fixture 100 is configured by attaching the light source unit 130 to the fixture body 110, is attached to a ceiling 190, which is an example of an attachment object, and irradiates light to the indoor side.

The lighting fixture 100 may be provided on a wall surface or a floor surface, but in any direction, the direction Z _F-Z_B with respect to the lighting fixture 100 is marked, and for ease of understanding, the direction Z _B is sometimes marked as the lower direction. That is, the lower and other marks are words for explaining the direction of the lighting fixture, and are not related to the lower direction of the gravitational force.

In addition, each of the drawings referred to in the present specification is schematically represented, for example, a part of the structure is omitted, exaggerated, or the like, so as to facilitate understanding of the present utility model. In the case where the same description is repeated for the structure of the member having the laterally symmetrical shape, only one of the left and right sides is described in some cases, and the repetition may be avoided.

< Lighting control device >

The illumination control apparatus 170 in fig. 1 is constituted by a tablet, a smart phone, a PC, or the like, and is provided with an illumination control program 171 (not shown). The user can operate the lighting control program 171 to communicate with the lighting fixture 100 via the wireless 178 to change the lighting conditions. As the lighting conditions, there are hue (color matching), brightness (dimming), and lighting/extinguishing, and in addition to manual control, a schedule operation of changing the lighting conditions may be automatically performed at a set time in accordance with a schedule registered in advance.

The lighting control device 170 is not essential, and the lighting fixture 100 may be turned on/off by turning on/off the electric wire even when the lighting control device 170 is not provided. The lighting control device may be controlled by a wired system.

< Light Source Unit >

As shown in fig. 2 (a) which is a side view from the right side and fig. 2 (b) which is a top view from the upper side, the light source unit 130 includes a cover portion 134, a power supply portion 136, and a coupling spring portion 135.

< Cover part >

Fig. 3 is an end view of a cut portion of the instrument body 110, which is shown by line A-A' in fig. 2 (b).

The cover 134 is a hollow member composed of a light emission cover 134A provided on the front surface side of the light source 133 and a support cover 134B provided on the rear surface side of the light source substrate 131. The light emission cover 134A is light-transmissive, and appropriately disperses the light diffusion material. The support cover is white in shape with little light transmission, but may be colored in other colors such as gray or black by using a resin having high thermal conductivity. The light-emitting cover portion 134A and the support cover portion 134B are integrally extrusion-molded by a two-color molding method. The material of the cover 134 is resin, and preferably polycarbonate or acrylic is used.

Since the cover 134 has a hollow structure integrating the light-emitting cover 134A and the supporting cover 134B, it has sufficient strength while being light in weight, thereby suppressing the deflection of the cover 134 in the longitudinal direction. The conventional support body is formed of a flat plate having a long shape, and thus is likely to be bent (flexed) in the long direction, but even if the support cover 134B of the cover 134 is intended to be bent, the light emitting cover 134A having a side surface is not bent, and thus has an advantage that it is not flexed as a whole.

< Light emission cover >

The light emission cover 134A is formed of a curved surface, and has a function of transmitting and appropriately diffusing light emitted from the light source 133. In addition, the diffusion may be suppressed to be transparent.

< Support cover >

As shown in fig. 3, the support cover 134B includes a first flat portion 134801, an inner protruding portion 134802, a substrate support portion 134803, a second flat portion 134804, a spacer portion 134805, a rear component mounting portion 134806, a third flat portion 134807, and a reflecting portion 134808.

The rear surface member mounting portion 134806 protrudes outside the hollow structure 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, and is not a portion forming the outer periphery of the hollow structure.

The light source substrate 131 described later is mounted closely to or near 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 inner protruding portion 134802 supports the light source substrate 131, and the inner protruding portion 134802 protrudes downward from the first flat portion 134801. In addition, in the case of bonding the light source substrate 131 to the first flat portion 134801, the inner protruding portion 134802 and the substrate supporting portion 134803 may be omitted, but may be left in order to maintain the supporting state in the case of a decrease in bonding force.

One surface of the first flat portion 134801 and one surface of the second flat portion 134804 are located inside the hollow structure, and the other surface is exposed outside the hollow structure. Therefore, the heat emitted from the light source substrate 131 is easily discharged to the outside through the first flat portion 134801. Therefore, it is preferable that at least the first flat portion 134801 be made of a resin having a higher thermal conductivity than 134A or the like. In view of the fact that the support cover 134B is manufactured by two-color molding, it is preferable that the entire support cover 134B is made of a resin having a higher thermal conductivity than the light emission cover 134A.

Referring to fig. 3, the light source unit 130 is pulled up to the instrument main body 110 side by the coupling spring portion 135, whereby the third flat portion 134807 is in contact with the front end of the long side surface portion 115 of the instrument main body 110. The third flat portion 134807 to the first flat portion 134801 are opaque cover portions, so that light lost from the light source 133 toward the storage recess 112 can be eliminated. Since the support cover 134B is made of resin, it is difficult to make it completely opaque, and the light transmittance is required to be smaller than that of the light-emitting cover 134A having light transmittance.

The back member mounting portion 134806 is provided at a distance from the second flat portion 134804 by the spacer portion 134805, and allows the support portion (spring holding portion 135B or the like) of the back member to enter.

The reflecting portion 134808 is a member located between the terminal end of the second flat portion 134804 and the boundary a/B of the two-color formation. This member has an effect of re-reflecting the light P emitted from the light source 133a and reflected back by the light emission cover 134A, and brightly emitting the light emission cover 134A to the vicinity of the boundary a/B thereof.

< Light source substrate, light Source >

As shown in fig. 4, the light source substrate 131 includes a plurality of light sources 133 each including a surface-mounted LED arranged in a row on a long printed board 132 at intervals in the longitudinal direction. As shown in fig. 1, the number of columns of the light sources 133 is 2, but may be 1 column or 3 columns or more. In addition to the surface mount type LED, COB (Chip On Board) type LED or CSP (CHIP SCALE PACKAGE (Chip scale package)) type LED in which a blue LED Chip described below is mounted On a substrate may be used.

The light source 133 is preferably 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 according to the kind and amount of the phosphor.

As the light source 133, for example, LEDs of only 1 emission color may be used, or LEDs of 2 emission colors (for example, daylight color (color temperature 6500K) and bulb color (color temperature 2700K)) may be alternately arranged.

Further, LEDs of 3 emission colors may be arranged in a color mixture. For example, by using LEDs of 3 colors of red (R), green (G), and blue (B), a very wide range of emission colors can be obtained.

As another example of the light sources of the 3 light emission colors, the following combinations of red LEDs, yellow-white LEDs, and blue-white LEDs are also possible.

The red LED (R) emits light in chromaticity within a range surrounded by (0.66,0.23), (0.423,0.355), (0.5 ), and (0.736,0.264) in CIE1931 chromaticity coordinates, for example (0.60,0.38).

Huang Baise LEDs (Yw) emit light in chromaticity within a range surrounded by (0.5 ), (0.423,0.355), (0.342,0.312), (0.352,0.44), (0.37,0.63), and chromaticity boundary lines in CIE1931 chromaticity coordinates, as an example (0.44,0.47).

The blue-white LED (Bw) emits light in chromaticity in a range surrounded by (0.336,0.24), (0.352,0.44), (0.15,0.2), and (0.2,0.1) in CIE1931 chromaticity coordinates, for example (0.23,0.26).

Since the light of Bw (blue-white) mixed with light of other spectrum having relatively high visibility has high visibility and the like as compared with light of B (blue) having a spectrum close to a single color, there is an advantage that power beam conversion efficiency (1 m/W) can be realized relatively well in the case of using a light emitting element of three colors of r·yw Bw as compared with the case of using a light emitting element of three colors of r·g·b.

< End cap >

As shown in fig. 2, the end cap 140 is a member mounted at the short-side end of the cover 134.

As shown in fig. 5 (b), which is a front view seen from the Y _F direction, that is, fig. 5 (a), and a top view seen from the Z _B direction, the end cap 140 mounted at the Y _B side end of fig. 2 (a) 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 region surrounded by the light emission cover portion 134A, the reflection portion 134808, the first flat portion 134801, and the second flat portion 134804. The screw receiving portion 143a is a member provided with a through hole 143c. The fixing portion 143B is a member inserted and fitted into a groove provided in the support cover portion 134B, and is provided with a through hole 143c having a larger diameter than the through hole of the screw receiving portion 143 a. The screw receiving portion 143a and the fixing portion 143B are used for fixing the end cap 140 and the support cap 134B. The fixing of the end cap 140 and the support cap 134B will be described later.

Further, a cutout N1 is provided at the end cap 140. The slit N1 is used to insert an LED driving cable 139 required for wiring between the light source and the power supply 136 (see fig. 2 b).

As the material of the end cap 140, the same resin as the light-emitting cap portion 134A or the same degree of light-transmitting resin is preferable.

< Power supply portion >

Referring to fig. 6 and 9, which are end views of a cut-off portion of line C-C' of fig. 2 including the power supply portion 136 of the light source unit 130, the power supply portion 136, which is one of the back surface members, has a function of converting alternating current supplied from the light source unit side alternating current cable 138 into direct current for driving the light source and supplying it to the light source through the LED driving cable 139. The output of the power supply 136 may be fixed, but may be controlled from the outside, and in this case, a control signal from the outside may be received by the wireless module 137.

The power supply unit 136 is mainly composed of a power supply main unit 136A and a power supply mounting unit 136B, and the power supply mounting unit 136B is mounted on the rear surface component mounting unit 134806 of the support cover 134B using a fastener 136F such as a screw or a rivet.

The power supply mounting portion 136B is a member for holding the power supply main portion 136A and mounting on the cover portion 134 of the light source unit. In order to mount the power supply mounting portion 136B on the rear member mounting portion 134806, as shown in fig. 6, a fastener 136F such as a screw or a rivet is inserted through the mounting hole 134809 of the rear member mounting portion 134806 and the hole 136Bc of the power supply mounting portion 136B, and is mounted by the fastener 136F. Further, fig. 6 is a view of the fastener 136F being a screw, but may be a rivet.

< Connecting spring portion >

Fig. 7 (a) shows a perspective view of the coupling spring portion 135 as a light source unit side coupling member, and fig. 8 shows a cut-off portion end view of the line B-B' (coupling spring portion) shown in fig. 2 (B) of the light source unit 130. The coupling spring portion 135, which is one of the back surface members, is a light source unit-side coupling member that is mounted on the upper surface of the support cover portion 134B, and couples the light source unit 130 to the instrument body 110 by engaging with the spring seat 117 provided in the instrument body 110.

As shown in fig. 7 (a), the coupling spring portion 135 includes a coupling spring 135A, a spring holding portion 135B, a spring protecting portion 135D, and a fastener 135F.

As an example, the coupling spring 135A is a double torsion spring, and is formed by bending a spring wire or the like. The coupling spring 135A includes a spring distal end portion 135Aa, a frame portion 135Ab connected from the spring distal end portion, a coil spring portion 135Ac continuous with the frame portion and bent into a coil shape, and a locking portion 135Ad which is a rod-like portion continuous with the coil spring portion and locked to the spring holding portion 135B.

The spring holding portion 135B is a member for holding the coupling spring 135A and attached to the cover portion 134 of the light source unit. In order to attach the spring holding portion 135B to the rear member attaching portion 134806, as shown in fig. 7 (a) and 8, a fastener 135F such as a screw or a rivet is inserted through the attaching hole 134809 of the rear member attaching portion 134806 and the hole portion 135Bc of the spring holding portion 135B, and is attached by the fastener 135F. Note that (a) in fig. 7 is a view in which the fastener 135F is a screw, and fig. 8 is a view in which the fastener 135F is a rivet, but the pattern of the portion in which the positive screw is inserted in (a) in fig. 7 is regarded as a circular shape, so that the rivet can be regarded as a rivet, and in fig. 8, the lower side view of the fastener 135F is a nut, so that the fastener 135F can be regarded as a screw or a nut.

The spring holding portion 135B is formed by bending a metal plate or the like. 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 a 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 coupling spring 135A is engaged. The hole 135Bc is a hole provided in the plate 135Ba, and a thread (tapping) for fixing the plate 135Ba and the support cover 134B may be cut (a thread is not required in the case of nut fixation or rivet fixation). The arch portion 135Bd is a portion processed into an arch, and a locking portion 135Ad of the coupling spring 135A is inserted and locked in the arch. The protruding portion 135Be is a portion that is bent and raised at an end of the plate portion 135 Ba.

The spring protector 135D is a metal plate for preventing the spring distal end portion 135Aa from forcefully colliding with the support cover 134B under the force of the spring to damage the support cover 134B, and is an unnecessary member when the support body is made of metal. The spring protecting portion 135D is also mounted on the back component mounting portion 134806 of the light source unit with a fastener 135F.

The plate portion 135Ba and the spring protection portion 135D of the spring holding portion 135B are mounted on the back surface member mounting portion 134806 of the cover portion by the fastener 135F, and at this time, the plate portion 135Ba and the back surface member mounting portion 134806 of the cover portion 134 are brought into surface contact within the range of the distance W, whereby the force is dispersed, and therefore, the breakage and fatigue of the cover portion 134 can be prevented.

Fig. 7 b is a perspective view of the plate-shaped spring protector 135D replaced with an elastic body (rubber or the like) spring protector 135D 2. The spring protection portion 135D2 is, for example, a rectangular parallelepiped, and is fixed to the first flat portion 134801 or the like by an adhesive. The spring protector 135D2 may extend below the rear surface component mounting portion 134806 in the X direction.

< Appliance body >

Fig. 9 is a perspective view of the lighting fixture 100 showing a state in which the light source unit 130 and the fixture body 110 are separated. The instrument main body 110 includes a housing 111, a spring seat 117 disposed at a bottom surface 114 of the housing 111, and a terminal block 118.

As shown in fig. 3, which is a cross-sectional view, the case 111 includes an elongated bottom surface portion 114 and 2 long side surface portions 115 extending from the long side Z _F of the bottom surface portion 114, and thereby, a storage recess 112 that is opened in the X _F direction and is capable of storing a rear surface member of the light source unit is formed.

The bottom surface 114 is provided with a lamp wire insertion hole 120A through which a wire such as a lamp wire 198 exposed from the ceiling 190 is inserted for supplying power to the lighting fixture 100. Further, two tool mounting holes 120B are provided in the bottom surface 114 at positions near both ends in the longitudinal direction, and these tool mounting holes 120B are used to pass through suspension bolts 196 exposed from the ceiling 190 or screws for mounting the tool body to the reinforcement of the ceiling 190. In the case of fixing by the suspension bolts, referring to fig. 9, after the suspension bolts 196 are respectively passed through the fixture mounting holes 120B, nuts 197 (may also be used together with washers or spring washers) are fastened to the suspension bolts 196, thereby fixing the fixture body 110 to the ceiling 190.

< Spring seat >

Fig. 10 is a perspective view showing a spring seat as an instrument body side connecting member for integrating the light source unit and the instrument body by being connected to the connecting spring portion 135 as the light source unit side connecting member. As shown in fig. 10, the spring seat 117 includes a spring seat fixing portion 117A attached to the bottom surface portion 114 of the instrument body and a spring seat main portion 117B protruding from the bottom surface portion in the Z _F direction, and the spring seat main portion 117B has a hook portion 117D and a spring insertion hole 117C. The hook 117D has a wide and flat hook shape, and is hooked by a frame 135Ab (see fig. 6) of the coupling spring 135A in a light source unit locking state described later. The spring insertion hole 117C is a substantially rectangular hole, and the frame portion 135Ab of the coupling spring 135A is inserted therein in a light source unit installation state described later. The spring seat 117 is generally formed by punching, bending, or the like a metal plate.

< Terminal block, electric Lamp wire insertion hole >

The terminal block 118 provided on the bottom surface 114 has a function of connecting a power cord 198 which enters the inside of the appliance body through a power cord insertion hole 120A, and connecting an appliance body side ac cable 119 which is connected to the power supply unit 136.

< Mounting hole >

The bottom surface 114 of the fixture body is provided with fixture attachment holes 120B, and the fixture attachment holes 120B are used to attach the fixture body 110 to the ceiling 190 by fastening the suspension bolts 196 with nuts 197. After the suspension bolts 196 are respectively passed through these appliance mounting holes 120B, nuts 197 are fastened to the suspension bolts 196, thereby fixing the appliance main body 110 to the ceiling 190.

< Assembling of light Source Unit >

(1) The light source substrate 131 is mounted inside the support cover 134B

The light source substrate 131 is slid in the longitudinal direction of the support cover 134B from the opening on the Y _F or Y _B side of the cover 134 so that the long side of the light source substrate 131 and the vicinity thereof are located in the region surrounded by the first flat portion 134801, the inner protruding portion 134802, and the substrate support portion 134803 of the support cover 134B described in fig. 3.

(2) The back member (coupling spring portion 135, spring protection portion 135D, power supply portion 136) is attached to the support cover portion 134B (screw fixation or rivet fixation)

The attachment of the back surface member will be described by taking the coupling spring portion 135 as an example.

In order to mount the coupling spring portion 135 on the support cover portion 134B, the plate portion 135Ba of the coupling spring portion 135 described in fig. 6 slides from the Y _F or Y _B side of the cover portion 134 so as to be located between the second flat portion 134804 of the support cover portion 134B and the rear surface member mounting portion 134806 described in fig. 7. Then, the hole portion 135Bc of the spring holding portion 135B of the coupling spring portion 135 is aligned with the mounting hole 134809 of the rear surface member mounting portion 134806, and the fastener 135F is mounted at the mounting hole 134809 from the Z _B side.

In the case where the fastener 135F is a rivet, there is no need to provide a thread at the mounting hole 134809. In the case where the fastening member 135F is a screw, a nut may be placed under the plate portion 135Ba to fasten the screw and the nut.

Rivet fixing has an advantage of simplifying the work as compared with screw fixing, but on the other hand, has a disadvantage of not being able to detach the back member due to deformation of the rivet. Therefore, in view of the necessity of removing the back surface member for repair or the like, it is desirable to determine which fastening means to use. Other fastening means such as fastening with an adhesive or a tape may be used.

(3) Connecting the LED driving cable 139 to the power supply portion 136

An LED driving cable 139 is connected to an end of the light source substrate 131. It is pulled out of the hollow cover portion 134 through the cutout N1 of the end cover and connected to the power supply portion 136.

(4) Mounting end cap 140 to cap portion 134

Referring to fig. 5, the cap 140 is mounted such that the frame portion 142 of the cap 140 enters the hollow cap 134 with respect to the opening portion of the cap 134.

Here, in the support cover 134B, a through hole is provided at a portion overlapping the through hole of the fixing portion 143B. In this state, the self-tapping screw is fastened to the through hole of the screw receiving portion 143a from the fixing portion 143b side through the through hole of the fixing portion 143b and the through hole of the rear surface member mounting portion 134806. The tapping screw is screwed into the through hole of the screw receiving portion 143 a. Thereby, the rear member mounting portion 134806 is sandwiched by the screw receiving portion 143a and the fixing portion 143b, and the end cap 140 and the cap 134 are fixed.

< Mounting the fixture body on the ceiling and mounting the light source unit on the fixture body >

The lighting fixture 100 is disposed on the ceiling in the following order. In addition, the present invention may be applied to a rod-shaped fitting such as a raceway, instead of the ceiling.

(1) Referring to fig. 9, 2 suspension bolts 196 extending from the ceiling side are passed through the fixture mounting holes 120B of the fixture body 110, and nuts 197 are tightened, thereby fixing the fixture body 110 to the ceiling 190. In addition, the fixture body 110 may be screwed to the reinforcement portion of the ceiling 190 by a small screw from below the fixture mounting hole 120B without using a suspension bolt, thereby fixing the fixture body 110.

(2) The power cord 198 on the ceiling 190 side is connected to the terminal block 118 through the power cord insertion hole 120A.

(3) The coupling springs 135A of the two coupling spring portions 135 on the light source unit 130 side are respectively hung on the hooks 117D of the spring seat 117 on the appliance body 110 side. This state is referred to as a "light source unit locking state".

(4) In the locked state, a connector (not shown) of the appliance body side ac cable 119 extending from the terminal block 118 of the appliance body 110 is connected to a connector (not shown) of the light source unit side ac cable 138 extending from the light source unit 130.

(5) The light source unit 130 is pushed upward. Thus, the coupling spring 135A enters the spring insertion hole 117C of the spring seat 117. The light source unit 130 is pulled up by the force of the spring, and the support cover 134B of the light source unit 130 is pressed against the instrument main body 110 to be in contact. This state is the lighting fixture 100 shown in fig. 1, and is referred to as a "light source unit setting state".

< Modification of cover >

Fig. 11 (a), 11 (b), and 11 (c) are cross-sectional views of the cover parts 234, 334, 434 as modifications of the cover part 134. The positions of the mounting holes 234809, 334809, and 434809, which are the portions corresponding to the mounting holes 134809 in the rear component mounting portions 234806, 334806, and 434806, which are the portions corresponding to the rear component mounting portions 134806, are indicated by single-dot chain lines.

In the cover 234 shown in fig. 11 (a), a third flat portion 234807 corresponding to the third flat portion 134807 is connected to an intermediate 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 in the case of the cover 134. The rear surface member mounting portion 234806 extends inward from the front end of the spacer portion 234805.

In the cover portion 334 shown in fig. 11 (b), a third flat portion 334807 corresponding to the third flat portion 134807 is connected to the lower end of the spacer portion 334805 corresponding to the spacer portion 134805. Therefore, the distance between the light source and the cover 334 is further widened as compared with the case of the cover 134. The rear surface member mounting portion 334806 extends inward from the front end of the spacer portion 234805.

In the cover portion 434 shown in fig. 11 (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 rear component mounting portion 434b 06 extends upward in the drawing from the connection portion. A back member mounting portion for mounting a back member in such a longitudinal direction will be described in detail in embodiment 3.

< Embodiment 2>

< Summary > of the invention

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 in consideration of design. The lighting fixture 500 is configured by attaching a light source unit 530 to a fixture body 510.

< Light Source Unit >

As shown in a side view from the X _F direction, i.e., fig. 12 (a), and a top view from the Z _B direction, i.e., fig. 12 (b), the light source unit 530 includes a cover portion 534, a power supply portion 536, and a coupling spring portion 535. As the width of the light source unit 530 becomes narrower, the power supply mounting portion 536B is disposed in the Y direction of the power supply main portion 536A instead of in the X direction.

< Cover part >

Fig. 13 shows a cross-sectional view of a line A-A' near the power supply portion 536 shown in fig. 12 (b), showing only a main portion of the lighting fixture 500.

The cover 534 is a hollow member composed of a light emission cover 534A provided on the front surface side of the light source 533 and a support cover 534B provided on the rear surface side of the light source substrate 531 (printed substrate 532). The light emission cover 534A is light-transmissive, and a light diffusion material is appropriately dispersed. The support cover is white in shape with little light transmission, but may be colored in other colors such as gray or black by using a resin having high thermal conductivity. The light-emitting cover 534A and the support cover 534B are integrally extrusion-molded by a two-color molding method. The cover 534 is made of resin, preferably polycarbonate or acrylic.

Since the cover 534 has a hollow structure integrating the light-emitting cover 534A and the supporting cover 534B, deflection of the cover 534 in the longitudinal direction is suppressed while the weight is light.

< Light emission cover >

The side surface and the front surface of the light emission cover 534A are formed by flat surfaces, and have a function of transmitting and appropriately diffusing the light emitted from the light source 533. In addition, the diffusion may be suppressed to be transparent.

< Support cover >

As shown in fig. 13, the support cover 534B includes a first flat portion 534801, an inner protruding portion 534802, a substrate support portion 534803, a second flat portion 534804, a spacer portion 534805, a rear surface component mounting portion 534806, a third flat portion 534807, and a contact portion 534810.

The rear surface member mounting portion 534806 protrudes from the spacer portion 534805 and the third flat portion 534807 which form the outer periphery of the cover portion 534 having a hollow structure, and is not a portion forming the hollow structure.

One surface of the first flat portion 534801 and the second flat portion 534804 is inside the hollow structure, and the other surface is exposed outside the hollow structure. Therefore, heat generated from the light source substrate 531 is easily discharged to the outside through the first flat portion 534801. Therefore, it is preferable that at least the first flat portion 534801 be made of a resin having a higher thermal conductivity than 534A or the like. In view of manufacturing by two-color molding, it is preferable that the entire support cover 534B is made of a resin having a higher thermal conductivity than the light emission cover 534A.

The rear surface member mounting portion 534806 is provided by a spacer portion 534805 at a distance from the second flat portion 534804 for the mounting plate 536G provided with a threaded hole.

< Light source substrate >

The light sources 533 composed of surface-mounted LEDs are arranged in a row on the long printed board 532 at intervals in the longitudinal direction on the light source board 531. As shown in fig. 13, the number of columns of the configuration light sources 533 is 1 column.

< Appliance body >

The instrument 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.

As shown in fig. 13, which is a cross-sectional view, the case 511 includes an elongated bottom surface portion 514 and 2 long side surface portions 515 extending from the long side of the bottom surface portion 514 in the Z _F direction, and thereby forms a storage recess 512 that is open in the X _F direction and is capable of storing the back surface member of the light source unit. Further, a protruding portion 521 is provided near the opening of the long side surface portion 515. The contact portion 534810 of the light source unit lifted in the Z _B direction by the coupling spring portion 535 contacts the protruding portion 521, thereby fixing the light source unit.

< Mounting Power supply part on its supporting cover part >

Referring to fig. 13, the power supply portion 536, which is one of the back surface members, has a function of converting alternating current supplied from the light source unit side alternating current cable into direct current for driving the light source and supplying it to the light source through the LED driving cable.

The power supply portion 536 has a power supply main portion 536A and a power supply mounting portion 536B. The power supply mounting portion 536B is mounted on the support cover 534B by passing through a mounting hole 536BH provided in the power supply mounting portion 536B and a mounting hole 534806H provided in the rear member mounting portion 534806, and mounting the power supply mounting portion 536B on a mounting plate 536G provided with the mounting hole 536GH cut with a screw using a fastener 536F such as a screw. In addition, in addition to the screws, rivets may be used, and the mounting plate 536G is not required.

< Mounting the coupling spring portion on the supporting cover portion thereof >

The spring holding portion 535B of the coupling spring portion 535 is also mounted on the support cover 534B in the same manner as the power supply mounting portion 536B is mounted on the support cover 534B.

< Embodiment 3>

< Summary > of the invention

The light source unit 550 of the present embodiment is different from the light source unit 530 in the mounting structure of the back surface member.

< Cover part >

Fig. 14 shows a cross-sectional view showing only a main portion in the vicinity of the power supply portion 536 of the light source unit 550.

The cover 534 has a hollow structure integrating the light emission cover 534A and the support cover 534B.

< Fastening Power supply portion to support cover portion >

As shown in fig. 13, the support cover 534B includes a rear component mounting portion 534811 extending from the third flat portion 534807 in the longitudinal direction (Z _B direction), and mounting holes 534811H are provided in the rear component mounting portion 534811.

< Mounting Power supply part on its supporting cover part >

Referring to fig. 14, a fastener 536F such as a screw is attached to the nut 536N through an attachment hole 536TH provided in the power supply attachment portion 536T and an attachment hole 534811H provided in the rear-surface-member attachment portion 534B 11 of the support cover portion 534B. In addition, in addition to the screw, the rivet may be attached, and in this case, the nut 536N is not required. Since the power supply mounting portion 536T is provided at 2 places on the Y _F side and the Y _B side of the power supply main portion 536A, the mounting can be performed sufficiently stably, but may be performed at other portions.

In addition, a portion corresponding to the power supply mounting portion 536T extending in the longitudinal direction may be provided for other back members such as a coupling spring, and the back member mounting portion 534811 of the light source unit may be used for mounting.

< Modification example other >

While the embodiments of the lighting fixture of the present utility model have been described above, the illustrated lighting fixture may be modified as follows, for example, and the present utility model is not limited to the lighting fixture described in the above embodiments.

The light source unit according to the embodiment is used in combination with the fixture body, but may be mounted on a lighting rail (lighting duct) or a raceway functioning as the fixture body, or may be mounted directly on a mounting object such as a ceiling without using the fixture body.

The hollow cover portion is not limited to a hollow shape having a closed cross-sectional shape, and may be provided with a hole. In the cross-sectional shape, there may be an X-direction slit shorter than the X-direction width or a Z-direction slit shorter than the Z-direction height.

In the example of embodiment 1, the wireless module 137 is inserted into the groove provided in the power supply unit 136, but a separate communication unit (a unit having the same function as the wireless module) may be mounted as a back surface member to the cover, and in this case, the mounting portion (corresponding to the portion of the power supply mounting portion 136B) of the communication unit may be mounted to the "back surface member mounting portion 134806" of the cover.

The instrument body has been described using the inverted triangle in embodiment 1 and the trough-shaped example in embodiments 2 and 3, but in any of the embodiments, the instrument body may be an inverted triangle, a trough-shaped, an open bottom, or other shapes.

The light source 133 may be directly mounted on the support cover 134B without using the light source substrate 131, for example, in addition to being mounted on the surface of the light source substrate.

The substrate is not limited to a printed circuit board, 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) may be used, or a ceramic substrate having a wiring pattern formed on the surface may be used. Thus, the material of the substrate is not particularly limited. In addition, the panel portion of the COB type LED or the package portion of the surface mount type LED may be used as a substrate instead of using a printed circuit board or the like.

The boundary a/B of the cover portion formed in two colors may be provided at any position in the middle thereof as long as the cover portion (a) is provided in the Z _B direction of the light source and the support cover portion (B) is provided in the Z _F direction of the light source.

The cover portion may be formed by a plurality of colors such as three-color molding instead of two-color molding. For example, the reflection portion 134808 may be white, and the first flat portion 134801, which is a portion where the light source substrate is mounted, may be a colored resin having high thermal conductivity. In this case, the color of the support cover is not particularly limited.

In the embodiment, the coupling spring portion is shown as the light source unit side and the spring receiving portion is shown as the appliance body side, but the coupling spring portion may be the appliance body side and the spring receiving portion may be the light source unit side. At this time, the spring receiving portion as the light source unit side coupling member is mounted as the back surface member on the light source unit.

The connecting spring is a linear double torsion spring, but a curved plate-like spring or the like is not limited to the shape. The member may not have elasticity as long as it is a member for connection.

The configurations of the present utility model are not limited to the above embodiments and modifications, and various modifications can be made within the technical scope described in the claims. For example, the respective partial structures of the above-described lighting fixtures may be applied to various lighting fixtures, and are not limited to the lighting fixtures related to LEDs.

The above-described embodiments and modifications may be partially combined.

Claims

1. A light source unit comprising a cover part, a light source substrate and a back surface member, characterized in that,

The light source substrate includes a substrate and a light source,

A flat part for mounting the light source substrate is arranged on the inner side of the supporting cover part, the light source substrate is closely contacted or approaches to the inner side of the supporting cover part for mounting, the outer side of the flat part is exposed to the outside,

The back member includes a light source unit side coupling member, and is mountable on a back member mounting portion of the support cover portion protruding to an outside of the hollow structure.

2. The light source unit according to claim 1, wherein a mounting hole is formed at the rear surface member mounting portion.

3. The light source unit according to claim 1, wherein the back surface member includes at least one member selected from a power source, a communication unit, and a spring protection portion.

4. A light source unit according to claim 1, wherein,

The light-emitting cover portion has light transmittance,

The light transmittance of the support cover portion is lower than that of the light emission cover portion.

5. A lighting fixture having a fixture body and a light source unit, the fixture body including a fixture body side coupling member, characterized in that,

The light source substrate includes a substrate and a light source,

The back surface member can be mounted on a back surface member mounting portion of the support cover portion protruding to the outside of the support cover portion,

The back surface member includes a light source unit side coupling member,

6. A lighting device as recited in claim 5, wherein said light source unit is fixed to said device body by connecting said device body side connecting member and said light source unit side connecting member, said cover portion being in contact with a projection provided at a front end of or at a long side surface portion of said device body.

7. A lighting device as recited in claim 5, wherein a mounting hole is formed at said back surface component mounting portion.

8. A lighting device as recited in claim 5, wherein said back surface component comprises at least one component selected from the group consisting of a power supply, a communication unit, and a spring protection.

9. A lighting fixture as recited in claim 5, wherein,

The light-emitting cover portion has light transmittance,