lighting fixtures

Abstract

To provide a luminaire that allows a label to be viewed from the appearance of a cell case in such a manner that the label is not attached to a surface of the cell case.SOLUTION: A luminaire comprises a light source unit for applying light, a power supply part for supplying power to the light source unit, and a storage battery connected to the power supply part. The storage battery comprises: a cell pack comprising a storage battery cell for storing power supplied from the power supply part, and a package covering the storage battery cell, and to which a label is attached; and a cell case housing the cell pack, and allowing the label attached to the package to be viewed.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present disclosure relates to a lighting fixture equipped with a storage battery. [Background technology]

[0002] Recessed emergency lighting fixtures that are installed in, for example, a ceiling and irradiate an illumination space such as an indoor space with light have been known for some time. Patent Document 1 discloses a lighting fixture that includes a light source unit that irradiates light, a power supply unit that supplies power to the light source unit, and a storage battery connected to the power supply unit. The storage battery has a plurality of storage battery cells and a cell case that houses the storage battery cells. The cell case is integrally provided with a storage battery connector for electrically connecting the storage battery and the power supply unit. In this way, Patent Document 1 aims to facilitate the replacement of the storage battery in an emergency lighting fixture that is recessed in a ceiling or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6956541 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, the battery may have a label affixed to its exterior that displays the battery's manufacturing information or the manufacturer's registration number with the Japan Lighting Manufacturers Association (JIL). In particular, for emergency lights, JIL5501:2019 Emergency Lighting Equipment Technical Standards, Appendix A, Section A.6.2, requires that the battery be labeled with the following information on the battery itself: "Name or Model," "Nominal Capacity," "Nominal Voltage," "Type of Emergency Lighting Battery," "Recycling Mark," "Manufacturer Name or Abbreviation," and "Year of Manufacture or Abbreviation." Furthermore, JIL5502:2008 Technical Standards for Emergency Lighting Equipment and Evacuation Guidance System Devices requires that the battery itself be labeled with the same information as JIL5501:2019. Therefore, even if a label is affixed to the battery itself, if the battery's exterior is covered by a case or other enclosure, a separate label must be affixed to the case to make it visible to the user.

[0005] In the lighting fixture disclosed in Patent Document 1, the storage battery is also housed in a cell case, so a label bearing information similar to that on the label attached to the storage battery must be attached to the surface of the cell case so that information about the storage battery can be confirmed from the outside of the cell case. In this way, attaching a label bearing information similar to that on the label attached to the storage battery to the surface of the cell case increases the number of parts and increases the effort required to display the information.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a lighting device that allows a label to be visible from the exterior of the cell case without the label being attached to the surface of the cell case. [Means for solving the problem]

[0007] The lighting fixture according to the present disclosure comprises a light source unit that emits light, a power supply unit that supplies power to the light source unit, and a storage battery connected to the power supply unit. The storage battery has a cell pack having storage battery cells that store the power supplied from the power supply unit and a package that covers the storage battery cells and has a label attached to it, and a cell case that houses the cell pack and allows the label attached to the package to be visible. [Effects of the Invention]

[0008] According to the present disclosure, the cell case is configured to allow a label attached to the package to be visible, so that the label can be seen from the exterior of the cell case without having to be attached to the surface of the cell case. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a lighting fixture according to a first embodiment, viewed from the illumination side. [Figure 2] FIG. 1 is an exploded perspective view of a lighting fixture according to a first embodiment. [Figure 3] 1 is a perspective view showing a power supply unit of a lighting fixture according to a first embodiment. [Figure 4] FIG. 2 is a perspective view showing a storage battery of the lighting fixture according to the first embodiment. [Figure 5] FIG. 2 is an exploded perspective view of a storage battery of the lighting fixture according to the first embodiment. [Figure 6] 3 is a vertical cross-sectional view of a storage battery of the lighting fixture according to the first embodiment. FIG. [Figure 7] FIG. 2 is a perspective view showing a cell pack of the lighting fixture according to the first embodiment. [Figure 8] 3 is a schematic diagram showing a label attached to the package of the lighting fixture according to the first embodiment. FIG. [Figure 9] FIG. 2 is a perspective view showing a cell case of the lighting fixture according to the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of a lighting device according to the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the embodiments described below. Furthermore, in the following drawings, including FIG. 1, the size relationships between the components or parts may differ from the actual size relationships. Furthermore, in the following description, terms indicating directions are used as appropriate to facilitate understanding, but these terms are for explanatory purposes and do not limit the present disclosure. Examples of terms indicating directions include "up," "down," "right," "left," "front," and "rear."

[0011] Embodiment 1 Fig. 1 is a perspective view of lighting device 100 according to embodiment 1, viewed from the light-emitting side. Fig. 2 is an exploded perspective view of lighting device 100 according to embodiment 1. For ease of explanation, in each of the drawings including Fig. 1 and Fig. 2, X1 will be referred to as the upside and X2 as the downside.

[0012] The lighting fixture 100 according to the first embodiment is a recessed emergency lighting fixture that is inserted into a mounting hole formed in a mounting surface such as a ceiling and that irradiates light into an illuminated space such as an indoor space. As shown in FIGS. 1 and 2 , the lighting fixture 100 includes a main body 1, a light source unit 2, and a frame 3.

[0013] As shown in FIGS. 1 and 2, the main body 1 has a cover 4, a terminal block 5, a power supply unit 6, a mounting bracket 7, and a storage battery 8. The cover 4 is, for example, a cylindrical configuration of sheet metal. The terminal block 5, the power supply unit 6, the mounting bracket 7, the storage battery 8, and the light source unit 2 are housed inside the cover 4. The cover 4 has a closed top surface and an open bottom surface. A flange 40 extending outward is provided around the opening 30 on the bottom surface. The flange 40 is provided to hook onto the outer periphery of a mounting hole provided on a mounting surface such as a ceiling. The cover 4 may be formed by aluminum die-casting or drawing.

[0014] Two spring mounting portions 41 for mounting mounting springs 42 are provided on the outer surface of the cover 4. The spring mounting portions 41 are provided facing each other in the radial direction. The base end of the mounting spring 42 is attached to the spring mounting portion 41, and the tip end protrudes outward. The mounting spring 42 is made of an elastic material such as stainless steel, and is a leaf spring formed by bending a strip-shaped plate material. When mounting the main body 1 to a mounting surface such as a ceiling, the mounting spring 42 is elastically deformed in a direction toward the cover 4, and the main body 1 together with the mounting spring 42 is inserted into the mounting hole. Thereafter, the mounting spring 42 deforms in a direction returning to its original shape where the flange 40 of the cover 4 abuts against the edge of the mounting hole, and the main body 1 is fixed to the mounting surface.

[0015] The terminal block 5 is connected to an electric wire (not shown) connected to an external power source and has a terminal to which power is supplied from the external electric wire. The terminal block 5 supplies the power supplied from the external power source to the power supply unit 6. The external power source is, for example, a commercial power source.

[0016] The power supply unit 6 is electrically connected to the terminal block 5 via an electric wire (not shown). The power supply unit 6 changes the power supplied from the outside via the terminal block 5, supplies power to the light source unit 2, and charges the storage battery 8.

[0017] The mounting bracket 7 is provided to secure the terminal block 5 and power supply unit 6 inside the cover 4. The terminal block 5 is fixed to the upper part of the mounting bracket 7. The power supply unit 6 is fixed to the lower part of the mounting bracket 7. With the terminal block 5 and power supply unit 6 secured, the mounting bracket 7 is attached to the top surface of the cover 4 with connecting members 70 such as screws.

[0018] The storage battery 8 is attached to the power supply unit 6 and serves as a power source for the lighting fixture 100 in an emergency. The storage battery 8 is charged by the power supply unit 6.

[0019] The light source unit 2 has a light source (not shown) that lights up when power is supplied from the power supply unit 6, an optical control member 20, a heat sink 21, a thermally conductive sheet (not shown), and a holder 22. The light source has a light source board on which one or more LEDs are mounted. The light source is electrically connected to the power supply unit 6 by a harness or the like, and lights up when power is supplied from the power supply unit 6. In an emergency, the light source also lights up when power is supplied from the power supply unit 6, which uses a storage battery 8 as its power source.

[0020] The optical control member 20 is specifically a lens that controls the direction of light emitted from the light source. The heat sink 21 dissipates heat generated by the light source. The heat sink 21 is made of a metal with high thermal conductivity, such as an aluminum alloy. The thermally conductive sheet is provided to transfer heat generated by the light source to the heat sink 21. The thermally conductive sheet is made of, for example, a silicon-based material or an acrylic-based material. The holder 22 is attached to the power supply unit 6 while holding the light source, the optical control member 20, the heat sink 21, and the thermally conductive sheet.

[0021] 1 and 2, the frame 3 is disk-shaped and is attached to the cover 4 so as to close the bottom opening of the cover 4 and cover the bottom side of the light source unit 2. An opening 30 is formed in the center of the frame 3, exposing the optical control member 20.

[0022] Fig. 3 is a perspective view showing the power supply unit 6 of the lighting fixture 100 according to the first embodiment. Next, the specific structure of the power supply unit 6 will be described with reference to Fig. 3. The power supply unit 6 has a configuration in which a circuit board (not shown) is housed inside a power supply unit case 60 having a substantially rectangular parallelepiped shape. The power supply unit case 60 is molded from, for example, plastic or metal that has been properly insulated.

[0023] The storage battery 8 is attached to the outer surface of the power supply case 60. The power supply case 60 has a power supply unit side connector 61, which connects to a storage battery side connector 802 of the storage battery 8, provided on the side surface on which the storage battery 8 is attached. The power supply unit side connector 61 is provided inside a rectangular recess 60a that is recessed inward from the bottom surface of the power supply case 60 toward the top. The power supply unit side connector 61 and the storage battery side connector 802 are configured so that one is inserted into the other and connected. Note that in the first embodiment, a configuration is shown in which the storage battery side connector 802 is inserted into the power supply unit side connector 61 and connected.

[0024] Furthermore, the power supply unit case 60 is provided with power supply unit-side guide portions 62 for attaching the storage battery 8 on the side surface on which the storage battery 8 is attached. The power supply unit-side guide portions 62 are provided on both the left and right sides of the recess 60a and are configured as a pair of L-shapes that protrude from the side surface of the power supply unit case 60 toward the storage battery 8. The power supply unit-side guide portions 62 are formed elongated in the up-down direction. Furthermore, the power supply unit case 60 is formed with groove portions 63 for positioning and fixing the storage battery 8 on the side surface on which the storage battery 8 is attached.

[0025] The circuit board includes a power supply circuit that generates power to supply power to the light source unit 2, a charging circuit that charges the storage battery 8, and a lighting circuit that lights up the light source unit 2 using power from the storage battery 8 when the external power supply fails. The circuit board also includes an inspection circuit that determines whether the storage battery 8 can light up the light source unit 2 for a specified time, a switch for starting the inspection operation, and a signal receiving unit for executing the inspection operation using a remote controller.

[0026] Fig. 4 is a perspective view showing the storage battery 8 of the lighting fixture 100 according to the first embodiment. Fig. 5 is an exploded perspective view of the storage battery 8 of the lighting fixture 100 according to the first embodiment. Fig. 6 is a vertical cross-sectional view of the storage battery 8 of the lighting fixture 100 according to the first embodiment. Next, a specific structure of the storage battery 8 will be described with reference to Figs. 4 to 6. As shown in Figs. 4 to 6, the storage battery 8 has a cell pack 80 which groups together a plurality of storage battery cells 800, and a cell case 81 which houses the cell pack 80.

[0027] The cell pack 80 includes a plurality of storage battery cells 800 , a package 801 , a storage battery side connector 802 , and a cable 803 .

[0028] The storage battery cells 800 are cylindrical and store power supplied from the power supply unit 6. In the cell pack 80 shown in Figs. 4 to 6, six storage battery cells 800 are arranged in a vertical row of three and a horizontal row of two, and are bundled together in a package 801. Note that the number of storage battery cells 800 is not limited to six as shown in the figures.

[0029] FIG. 7 is a perspective view showing cell pack 80 of lighting fixture 100 according to embodiment 1. Package 801 protects a plurality of storage battery cells 800 so that they are integrated together. Package 801 is formed of, for example, a resin sheet. As shown in FIG. 7, label 850 is attached to the surface of package 801.

[0030] Fig. 8 is a schematic diagram showing a label 850 attached to package 801 of lighting device 100 according to embodiment 1. As shown in Fig. 8, label 850 lists, for example, the product number (name or model name) of storage battery 8, the ratings (nominal voltage, capacity), the type of battery, a recycle mark, the name of the manufacturer, and the year of manufacture.

[0031] The storage battery-side connector 802 is connected to the power supply-side connector 61 and electrically connects the storage battery 8 and the power supply 6. The storage battery-side connector 802 has a box-shaped connector main portion 802a that fits into the power supply-side connector 61 and a connector flange portion 802b provided on one end surface of the connector main portion 802a. A metal fitting (not shown) that functions as a connection terminal is housed inside the connector main portion 802a. A cable 803 that connects to the metal fitting is disposed in the connector main portion 802a. The connector flange portion 802b is provided on the end surface opposite the connection portion of the connector main portion 802a that is connected to the power supply-side connector 61. The connector flange portion 802b is formed to protrude outward beyond the outer surface of the connector main portion 802a. A through-hole is formed in the connector flange portion 802b to pass the cable 803 through.

[0032] The cable 803 is provided to connect one or more storage battery cells 800 to the fittings of the storage battery side connector 802. The cable 803 is housed inside the cell case 81 together with the cell pack 80.

[0033] The cell case 81 has a box-shaped case body 810 with one side open, and a case lid 811 that closes the open side of the case body 810, which houses the cell pack 80 inside. The cell case 81 is structurally attached to the side of the power supply unit 6.

[0034] The case main body 810 is formed to a size that allows the cell pack 80, which includes six storage battery cells 800, to be tightly and securely housed without any gaps. This is to stably house the cell pack 80. "Without any gaps" means that there is no space to house additional storage battery cells 800.

[0035] The case main body 810 has, on the side attached to the power supply unit 6, a connector holding portion 82 that holds the storage battery side connector 802, a fixing portion 83 that is fixed to the power supply unit 6, and a storage battery side guide portion 84 that engages with the power supply unit side guide portion 62 of the power supply unit 6.

[0036] FIG. 9 is a perspective view showing a cell case 81 of a lighting fixture 100 according to the first embodiment. As shown in FIG. 9, the cell case 81 is configured so that a label 850 attached to the package 801 can be seen. In the first embodiment, the cell case 81 is formed with a label opening 81a through which the label 850 can be seen, and the shape of the opening is, for example, rectangular. The label opening 81a is formed at a position that allows the label 850 of the cell pack 80 to be exposed from the outside when the cell pack 80 is covered by the cell case 81. In the first embodiment, the label opening 81a is formed on the side of the cell case 81 opposite to the side attached to the power supply unit 6.

[0037] The openings may be square, circular, or other polygonal shapes, and multiple openings may be provided in the cell case. In this case, the label 850 of the cell pack 80 may be visible through any of the multiple label openings 81a. For example, if the cell case 81 has multiple label openings 81a, the cell case 81 may be configured so that the opening can be selected depending on the cell pack 80 installed inside. The label openings 81a may also be formed to conceal part of the information written on the label 850 of the cell pack 80. For example, the cell case 81 may have label openings 81a formed to cover part of the product number on the label 850 of the cell pack 80. This allows the product number written on the label 850 of the cell pack 80 to differ from the product number on the label 850 visible from the exterior of the cell case 81, making it possible to distinguish the product numbers of the cell pack 80 and the cell case 81 without providing a new label 850. In this way, the cell case 81 may be formed so that the label openings 81a conceal part of the information displayed on the label 850. The cell case 81 may be made of a transparent material that allows the label 850 to be seen. In this case, the opening of the cell case 81 may be used as a mark for the orientation and position when the cell pack 80 is assembled into the cell case 81. The label opening 81a may be formed by embossing or the like so as to hide part of the information written on the label 850 of the cell pack 80.

[0038] The connector holding portion 82 is configured as a pair of walls that protrude outward from the side surface of the case main body 810 that is attached to the power supply unit 6 and extend in the vertical direction. The connector holding portion 82 holds the storage battery side connector 802 inserted between the pair of walls. The inner wall surface of the connector holding portion 82 is provided with a pair of protrusions 82a that protrude toward the opposing wall and support the connector flange 802b of the storage battery side connector 802.

[0039] Furthermore, the portion of the connector holding portion 82 below the protrusion 82a fits inside the recess 60a when the storage battery-side connector 802 is inserted into the power supply-side connector 61. The connector holding portion 82 is sized so that its lower end protrudes downward beyond the lower end of the storage battery-side connector 802 when the storage battery-side connector 802 is inserted between the pair of walls. The connector holding portion 82 is configured so that its protruding lower end abuts against the upper wall surface of the recess 60a when the storage battery-side connector 802 is inserted to a predetermined position into the power supply-side connector 61. In other words, the lower end of the connector holding portion 82 abuts against the upper wall surface of the recess 60a, thereby preventing the storage battery-side connector 802 from being inserted too far into the power supply-side connector 61. This is because if the storage battery-side connector 802 is inserted too far into the power supply-side connector 61, loads will be applied to the storage battery-side connector 802 and the power supply-side connector 61, which may cause damage to each other.

[0040] Furthermore, the connector holding portion 82 has an arc-shaped cutout portion 82b cut out toward the side surface of the cell case 81 below the protrusion 82a. This is to prevent interference with other components provided inside the recess 60a when the lower portion of the connector holding portion 82 is fitted into the recess 60a. Furthermore, when inserting the storage battery-side connector 802 into the power supply-side connector 61, the worker can visually check the insertion through the cutout portion 82b. In other words, providing the cutout portion 82b improves the ease of inserting the storage battery-side connector 802 into the power supply-side connector 61.

[0041] Furthermore, a step 82c is provided on the outer surface of the connector holding portion 82 by making the portion below the protrusion 82a wider. In the illustrated example, the step 82c is provided integrally with the protrusion 82a.

[0042] The fixing portion 83 is provided to fix the position of the storage battery 8 attached to the power supply unit 6. The fixing portion 83 has elastic properties. The fixing portion 83 protrudes outward from the side surface of the case main body 810 and has a flat plate portion 83a extending substantially parallel to the side surface of the case main body 810, and a triangular protrusion portion 83b that fits into the groove portion 63 of the power supply unit case 60. The flat plate portion 83a elastically deforms toward the side surface of the case main body 810. When the storage battery 8 is attached to the power supply unit 6, the elastic force of the flat plate portion 83a presses the protrusion portion 83b into the groove portion 63 and fits therein, thereby restricting downward movement of the storage battery 8 and fixing it to the power supply unit 6.

[0043] The battery-side guide portion 84 is provided for attaching the battery 8 to the power supply unit 6. The battery-side guide portion 84 protrudes from the side surface of the case main body 810 toward the power supply unit 6 and is configured as a pair of L-shaped portions that slidably fit into the power supply unit-side guide portion 62. Like the power supply unit-side guide portion 62, the battery-side guide portion 84 is formed elongated in the up-down direction. The battery 8 can be attached to the power supply unit 6 by fitting the battery-side guide portion 84 into the power supply unit-side guide portion 62.

[0044] The case lid 811 closes the opening of the case main body 810, which houses the cell pack 80 inside. The case lid 811 is detachably attached to the case main body 810. The case lid 811 is provided with a rectangular connector lid 811a that protrudes outward on the side surface that is attached to the power supply unit 6. The connector lid 811a covers and protects the upper part of the storage battery side connector 802 and the cable 803 that are held by the connector holding portion 82 of the case main body 810. The connector lid 811a also surrounds the periphery of the upper part of the storage battery side connector 802 with its protruding left and right side surfaces and front end surface, restricting movement of the storage battery side connector 802.

[0045] 6, a step is formed on the inner lower end of the front end surface of connector lid portion 811a, against which connector flange portion 802b abuts, and the step restricts forward movement of storage battery side connector 802. In other words, with the above configuration, lighting device 100 according to the first embodiment can prevent storage battery side connector 802 from moving and becoming detached from connector holding portion 82 due to vibration, impact, or the like. Note that the step provided on the front end surface of connector lid portion 811a is not necessarily required.

[0046] According to the first embodiment, the cell case 81 is configured to allow the label 850 attached to the package 801 to be visible. Therefore, the label 850 can be seen from the outside of the cell case 81 without being attached to the surface of the cell case 81. Therefore, there is no need to attach a label 850 bearing information similar to that of the label 850 attached to the storage battery 8 to the surface of the cell case 81. This makes it possible to suppress an increase in the number of parts and save the effort of displaying information.

[0047] (Variation) In this modification, the label opening 81a is formed on a surface of the cell case 81 that intersects with the side surface attached to the power supply unit 6. Therefore, when the lighting fixture 100 is attached to a ceiling or the like, the label opening 81a allows the label 850 to be exposed while the storage battery 8 remains exposed. Therefore, the label 850 can be seen when the storage battery 8 is attached to the lighting fixture 100. [Explanation of symbols]

[0048] 1 main body, 2 light source unit, 3 frame, 4 cover, 5 terminal block, 6 power supply unit, 7 mounting bracket, 8 storage battery, 20 optical control member, 21 heat sink, 22 holder, 30 opening, 40 flange, 41 spring mounting portion, 42 mounting spring, 60 power supply unit case, 60a recess, 61 power supply unit side connector, 62 power supply unit side guide portion, 63 groove portion, 70 joint member, 80 cell pack, 81 cell case, 81a label opening, 82 connector holding portion, 82a protrusion portion, 82b notch portion, 82c step portion, 83 fixing portion, 83a flat portion, 83b convex portion, 84 storage battery side guide portion, 100 lighting fixture, 800 storage battery cell, 801 package, 802 storage battery side connector, 802a Connector main part, 802b connector flange part, 803 cable, 810 case main body part, 811 case lid part, 811a connector lid part, 850 label.

Claims

1. a light source unit that irradiates light; a power supply unit that supplies power to the light source unit; a storage battery connected to the power supply unit, The storage battery is a cell pack including a storage battery cell that stores the power supplied from the power supply unit and a package that covers the storage battery cell and has a label attached; a cell case that houses the cell pack and allows the label attached to the package to be viewed; Lighting fixtures.

2. The cell case has a label opening through which the label can be seen.

2. The lighting fixture of claim 1.

3. The cell case has a plurality of label openings formed therein, The label of the cell pack is visible through any one of the label openings.

3. The lighting fixture according to claim 2.

4. The cell case is formed so that the label opening conceals part of the display content of the label.

4. The lighting fixture according to claim 2 or 3.

5. The cell case is made of a transparent material that allows the label to be seen. The lighting fixture according to any one of claims 1 to 4.

6. The cell pack comprises: a battery-side connector attached to the package and electrically connecting the power supply unit and the battery cell; The cell casing is a case body that houses and holds the cell pack; The case main body includes: a connector holding portion for holding the storage battery side connector; The lighting fixture according to any one of claims 1 to 5.

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