Method for constructing a building and method for installing a lightweight large-sized lighting fixture in a building

Abstract

The method includes the steps of: providing a connector-equipped wiring as wiring for electrically connecting, among a plurality of wirings arranged in the attic, a lightweight, large-sized lighting fixture that is a lighting fixture that is not fixed by a hanging material when installed in the ceiling; arranging a plurality of ceiling materials to form a ceiling; connecting the connector-equipped wiring arranged in the attic space above the formed ceiling to a power adapter prepared in a living space below the formed ceiling via an opening provided in the ceiling material, using the connector of the connector-equipped wiring; electrically connecting the lightweight, large-sized lighting fixture and the power adapter; and installing the lightweight, large-sized lighting fixture on the ceiling material by passing a fastener on the lightweight, large-sized lighting fixture electrically connected to the connector-equipped wiring or the power adapter electrically connected to the connector-equipped wiring through the opening in the ceiling material.

Description

[Technical Field]

[0001] The present invention relates to a method for constructing a building and a method for installing a lightweight large-scale lighting fixture in a building. [Background technology]

[0002] Lighting is an essential element in office buildings, factories, commercial facilities, and almost all other buildings. In many countries, buildings are required to meet certain standards when they are constructed. For example, in Japan, there are laws such as the Building Standards Act and the Fire Service Act, which stipulate rules that must be observed. Buildings that do not meet the standards are considered illegal, and their use is restricted.

[0003] When constructing a building, work proceeds in the following order: foundation work, framework work, finishing work, and equipment work. Electrical equipment such as lighting, and water supply and drainage equipment are installed after the framework is completed. Patent Document 1 discloses a support device for ceiling-mounted equipment that allows ceiling-mounted equipment such as lighting to be installed quickly and easily on the ceiling. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-70561 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the method disclosed in Patent Document 1 still requires a considerable number of personnel and labor hours. Therefore, it would be extremely beneficial if a system could be established that would make it easier than ever to install lighting in building construction. [Means for solving the problem]

[0006] A lightweight, large-scale lighting fixture according to one embodiment of the present invention comprises a base plate, a substrate, 100 or more light source elements arranged on the substrate, and a cover with a light-emitting surface having an area of ​​45,000 mm2 or more, wherein the light source elements comprise a light-emitting element, a wavelength conversion member that covers the light-emitting element, and a sealing member that covers the wavelength conversion member and emits light with a bud wing-shaped light distribution characteristic, and has a total luminous flux of 2,500 lm or more, a weight of 0.5 kg or more and less than 2.5 kg, and a height from the ceiling mounting surface to the light-emitting surface of approximately 20 mm, and is a lightweight, large-scale lighting fixture (excluding lighting fixtures with a total luminous flux of 30,000 lm or more) to be installed inside a building. Also, This disclosure A method of constructing a building according to one embodiment of the present invention includes the steps of: providing connector-equipped wiring as wiring for electrically connecting, among a plurality of wirings arranged in the attic, a lightweight, large-sized lighting fixture that is a lighting fixture that is not fixed by a hanging material when installed in the ceiling; arranging a plurality of ceiling materials to form a ceiling; connecting, via an opening provided in the ceiling material, the connector-equipped wiring arranged in the attic space above the formed ceiling to a power adapter prepared in a living space below the formed ceiling, using the connector of the connector-equipped wiring; electrically connecting the lightweight, large-sized lighting fixture and the power adapter; and installing the lightweight, large-sized lighting fixture on the ceiling material by passing a fastener provided on the lightweight, large-sized lighting fixture electrically connected to the connector-equipped wiring or the power adapter electrically connected to the connector-equipped wiring through the opening in the ceiling material.

[0007] Also, This disclosure A method of constructing a building according to one embodiment of the present invention includes the steps of: providing a connector-equipped wiring as wiring for electrically connecting a lightweight, large-sized lighting fixture, which is a lighting fixture that is not fixed by a hanging material when installed on a ceiling, among a plurality of wirings arranged above a ceiling formed by arranging a plurality of ceiling materials; connecting the connector-equipped wiring arranged in the attic space above the formed ceiling to a power adapter through an opening provided in the ceiling material using the connector of the connector-equipped wiring; electrically connecting the lightweight, large-sized lighting fixture prepared in a living space below the formed ceiling to the power adapter; and installing the lightweight, large-sized lighting fixture on the ceiling material by passing a fastener on the lightweight, large-sized lighting fixture electrically connected to the connector-equipped wiring or the power adapter electrically connected to the connector-equipped wiring through the opening in the ceiling material.

[0008] Also, This disclosureA method of constructing a building according to one embodiment of the present invention includes the steps of: providing a connector-equipped wiring as wiring for electrically connecting a lightweight, large-sized lighting fixture, which is a lighting fixture that is not fixed by a hanging material when installed on a ceiling, among a plurality of wirings arranged above the ceiling in a ceiling formed by arranging a plurality of ceiling materials; connecting the connector-equipped wiring to a power adapter using the connector of the connector-equipped wiring and arranging the power adapter electrically connected to the connector-equipped wiring in the attic space; electrically connecting the lightweight, large-sized lighting fixture to the power adapter; and passing a fastener of the lightweight, large-sized lighting fixture electrically connected to the connector-equipped wiring through an opening in the ceiling material, and installing the lightweight, large-sized lighting fixture on the ceiling material.

[0009] Also, This disclosure A method of constructing a building according to one embodiment of the present invention includes the steps of: providing wiring with electric shock prevention connectors as wiring for electrically connecting, among a plurality of wirings arranged in the attic, lightweight large lighting fixtures that are lighting fixtures that are not fixed by hanging materials when installed in the ceiling; arranging a plurality of ceiling materials to form a ceiling; connecting, via an opening provided in the ceiling material, the wiring with electric shock prevention connectors arranged in the attic space above the formed ceiling to a power adapter prepared in a living space below the formed ceiling using the electric shock prevention connectors for the wiring with electric shock prevention connectors; electrically connecting the lightweight large lighting fixture and the power adapter; and installing the lightweight large lighting fixture on the ceiling material by passing a fastener on the lightweight large lighting fixture electrically connected to the wiring with electric shock prevention connectors or the power adapter electrically connected to the wiring with electric shock prevention connectors through the opening in the ceiling material. Also, This disclosureA method of constructing a building according to one embodiment of the present invention includes the steps of: providing wiring with an electric shock prevention connector as wiring for electrically connecting to a lightweight, large-sized lighting fixture, which is a lighting fixture that is not fixed by a hanging material when installed on a ceiling, among a plurality of wirings arranged above a ceiling formed by arranging a plurality of ceiling materials; connecting the wiring with an electric shock prevention connector arranged in the attic space above the formed ceiling to a power adapter through an opening provided in the ceiling material using an electric shock prevention connector for the wiring with an electric shock prevention connector; electrically connecting the lightweight, large-sized lighting fixture prepared in a living space below the formed ceiling to the power adapter; and installing the lightweight, large-sized lighting fixture on the ceiling material by passing a fastener provided on the lightweight, large-sized lighting fixture electrically connected to the wiring with an electric shock prevention connector or on the power adapter electrically connected to the wiring with an electric shock prevention connector through the opening in the ceiling material. Also, This disclosure A method of constructing a building according to one embodiment of the present invention includes the steps of: providing wiring with an electric shock prevention connector as wiring for electrically connecting to a lightweight, large-sized lighting fixture, which is a lighting fixture that is not fixed by a hanging material when installed on a ceiling, among a plurality of wirings arranged above a ceiling formed by arranging a plurality of ceiling materials; connecting the wiring with an electric shock prevention connector to a power adapter using the electric shock prevention connector of the wiring with an electric shock prevention connector, and placing the power adapter electrically connected to the wiring with an electric shock prevention connector in the attic space; electrically connecting the lightweight, large-sized lighting fixture to the power adapter; and passing a fastener of the lightweight, large-sized lighting fixture electrically connected to the wiring with an electric shock prevention connector through an opening in the ceiling material, and installing the lightweight, large-sized lighting fixture on the ceiling material. Also, This disclosureA method of constructing a building according to one embodiment of the present invention includes the steps of: installing a connector-equipped wiring as wiring for electrically connecting, among a plurality of wirings arranged in the attic, a lightweight large-sized lighting fixture that is a lighting fixture that is not fixed by a hanging material when installed in the ceiling; and installing a lightweight large-sized lighting fixture in the ceiling material by arranging a plurality of ceiling materials to form a ceiling, connecting the connector-equipped wiring arranged in the attic space above the formed ceiling to a power adapter prepared in a living space below the formed ceiling through an opening provided in the ceiling material using the connector of the connector-equipped wiring, electrically connecting the lightweight large-sized lighting fixture and the power adapter, and passing a fastener provided on the lightweight large-sized lighting fixture electrically connected to the connector-equipped wiring or the power adapter electrically connected to the connector-equipped wiring through the opening in the ceiling material, and installing the lightweight large-sized lighting fixture in the ceiling material, wherein the step of connecting using the connector of the connector-equipped wiring is performed after the step of installing the connector-equipped wiring. Also, This disclosureA method of constructing a building according to one embodiment of the present invention comprises the steps of: installing a connector-equipped wiring as wiring for electrically connecting a lightweight, large-sized lighting fixture, which is a lighting fixture that is not fixed by a hanging material when installed on a ceiling, among a plurality of wirings arranged above a ceiling formed by arranging a plurality of ceiling materials; and installing a lightweight, large-sized lighting fixture that is not fixed by a hanging material when installed on a ceiling, which is work performed by a person who is qualified as an electrician; and installing a lightweight, large-sized lighting fixture that is not fixed by a hanging material when installed on a ceiling, by passing a fastener of the connector-equipped wiring or a fastener of the connector-equipped wiring through the opening in the ceiling material, which is work that can be performed by a person who is not qualified as an electrician. Also, This disclosure A method of constructing a building according to one embodiment of the present invention includes the steps of: installing a connector-equipped wiring as a wiring for electrically connecting a lightweight, large-sized lighting fixture, which is a lighting fixture that is not fixed by a hanging material when installed in a ceiling, among a plurality of wirings arranged above the ceiling in a ceiling formed by arranging a plurality of ceiling materials; and installing the lightweight, large-sized lighting fixture in the ceiling material by connecting the connector-equipped wiring to a power adapter using the connector of the connector-equipped wiring and placing the power adapter electrically connected to the connector-equipped wiring in the attic space; electrically connecting the lightweight, large-sized lighting fixture to the power adapter; and passing a fastener of the lightweight, large-sized lighting fixture electrically connected to the connector-equipped wiring through an opening in the ceiling material, and installing the lightweight, large-sized lighting fixture in the ceiling material, wherein the step of connecting using the connector of the connector-equipped wiring is performed after the step of installing the connector-equipped wiring. Also, This disclosureOne embodiment of the method is a method for installing a lightweight, large-sized lighting fixture in a building after the steps of installing a plurality of wirings in the attic and fixing a plurality of ceiling materials with hanging materials to form a ceiling have been performed, the method comprising the steps of: connecting, via an opening provided in the ceiling material, a connector-equipped wiring provided as wiring for electrically connecting the lightweight, large-sized lighting fixture among the plurality of wirings arranged in the attic space above the formed ceiling, to a power adapter prepared in a living space below the formed ceiling, using the connector of the connector-equipped wiring; electrically connecting the lightweight, large-sized lighting fixture and the power adapter; and installing the lightweight, large-sized lighting fixture in the ceiling material by passing a fastener provided on the lightweight, large-sized lighting fixture electrically connected to the connector-equipped wiring or the power adapter electrically connected to the connector-equipped wiring through the opening in the ceiling material. [Effects of the Invention]

[0010] According to the present invention, the installation work of lighting can be performed more easily than before. To provide a lightweight large-sized lighting fixture that can also be used for can be done. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a flow diagram for explaining the flow of lighting installation in the process leading up to the construction of a building. [Figure 2] FIG. 2 is a schematic diagram showing an example of the structure of a room in a building according to the embodiment. [Figure 3] FIG. 3 is a diagram showing an example of a ceiling-mounted fixture that is not fixed by a suspension member. [Figure 4] FIG. 4 is a diagram showing an example of a ceiling-mounted fixture fixed by a hanging member. [Figure 5] FIG. 5 is a perspective view of the illumination fixture according to the embodiment. [Figure 6] FIG. 6 is a schematic diagram for explaining the light emitting surface of the illumination fixture according to the embodiment. [Figure 7] FIG. 7 is a perspective view of a light source element in the illumination fixture according to the embodiment. [Figure 8] FIG. 8 is a diagram showing optical characteristics of the light source element in the illumination fixture according to the embodiment. [Figure 9] FIG. 9 is a diagram showing the structure of the attic space in the construction of a building according to the embodiment. [Figure 10] FIG. 10 is a diagram for explaining a method of installing the illumination fixture according to the first embodiment. [Figure 11] FIG. 11 is a diagram for explaining a method of installing the illumination fixture according to the first embodiment. [Figure 12] FIG. 12 is a diagram showing the structure of the illumination fixture according to the first embodiment when it is installed on a ceiling. [Figure 13] FIG. 13 is a diagram for explaining a method for removing the illumination fixture according to the first embodiment from the ceiling. [Figure 14] FIG. 14 is a diagram for explaining a method of installing the illumination fixture according to the second embodiment. [Figure 15] FIG. 15 is a diagram for explaining a method of installing the illumination fixture according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Modes for carrying out the present invention will be described below with reference to the drawings. However, the modes described below are intended to embody the technical concept of the present invention and are not intended to limit the present invention. Furthermore, in the following description, the same names and symbols indicate the same or similar components, and detailed description will be omitted as appropriate. Note that the size and positional relationship of components shown in each drawing may be exaggerated for clarity of explanation.

[0013] Figure 1 is a flow diagram explaining the process of lighting installation in the process of building construction. Here, we focus on a multi-story building with corridors and rooms, such as a typical office building. In the construction of a large-scale building such as an office building, a general contractor is contracted to place an order for the construction work and coordinates the entire construction work carried out by various contractors.

[0014] First, architects and designers design the building (Step S1). In this process, the layout of corridors and rooms is decided, and the overall design of the building is recorded on blueprints. The building materials to be used and electrical equipment such as lighting fixtures are also decided to some extent, and their placement is also recorded on the blueprints.

[0015] Next, based on the determined design, building materials and construction machinery are prepared, and foundation work is carried out (step S2). In this process, pile work and earthworks are carried out to ensure a stable foundation that can withstand the load of the building. This work is mainly carried out by workers from civil engineering contractors. Note that this work is not limited to civil engineering contractors, but also involves workers from other contractors.

[0016] Next, structural work is carried out to form the building's framework on stable ground (Step S3). Structural work begins with the foundations and, if there is a basement, the basement floor, and then proceeds to the aboveground floors. The framework of the entire building is completed by pouring concrete, erecting columns, assembling steel frames, etc. Concrete is also poured for the exterior walls, roof, floors of each floor, etc.

[0017] Furthermore, during the framework construction, inserts are embedded to allow for the suspension bolts to be lowered during the subsequent interior construction work. For example, ceiling inserts for securing suspension bolts are fixed as part of the floor slab (such as reinforced concrete floor panels) when the floor slab on the upper floor is poured. This work is mainly carried out by workers from civil engineering contractors and workers from scaffolding, earthwork, and concrete contractors. Next, the exterior construction of the building is carried out (Step S4). This involves tiling the exterior walls, and installing window sashes, window glass, curtain walls, etc. Painting and other work are also carried out.

[0018] Next, interior construction work is carried out (Step S5). In the interior construction work, the ceiling, walls, and floors are constructed. In the ceiling construction work to install the ceiling, suspension bolts are lowered from the ceiling inserts installed in the framework work in Step S3, and ceiling materials, which are the components that make up the ceiling surface, such as ceiling panels and ceiling underlayment materials, are attached to a base made of lightweight steel frames. The ceiling materials are supported by suspension materials such as suspension bolts and hangers, as well as diagonal members, which serve as measures to prevent danger such as the ceiling panels falling off.

[0019] For example, in Japan, regulations to prevent ceilings from falling off are established in the Building Standards Act and enforcement ordinances. One of these regulations stipulates that when installing ceiling materials that meet certain conditions, measures to prevent falling off must be taken, such as securing them with hanging materials. Regarding lighting fixtures, depending on their size and weight, some can be installed on the ceiling without being secured with hanging materials, while others must be secured with hanging materials.

[0020] It is possible to install ceiling inserts for fixing the suspension bolts by driving anchors into the concrete after the concrete has been poured, instead of installing them when the concrete is poured. However, considering efficiency and safety, it is preferable to install them beforehand, and for locations where it is known that suspension materials will be installed, it is desirable to determine the placement of the ceiling inserts at the design stage and embed them when the concrete is poured.

[0021] Furthermore, during interior construction work, before the ceiling is laid, i.e., before the ceiling is completely constructed with ceiling materials, pipes and air conditioning ducts are hung and electrical wires are routed through the pipes. Therefore, the space required for installing electrical wiring, ducts, air conditioning equipment, etc. is provided above the ceiling. Furthermore, openings are provided in the ceiling material to accommodate the locations where lighting and air conditioning will be installed. Work such as installing ducts within the ceiling and securing the ceiling material with hanging materials is performed by workers from the interior construction contractor. On the other hand, installing electrical wiring involves the risk of electric shock, so it is performed by specialized workers who are skilled in electrical work.

[0022] It is assumed that in many cases, the workers who install the ceiling and the workers who run the electrical wiring in the attic are different people. In Japan, it is not permitted for anyone without a license to be an electrician to carry out electrical work such as wiring. In this way, safety is taken into consideration when constructing a building, as workers are dispatched from various specialized contractors and each one performs their own specialized work.

[0023] In this specification, a contractor's worker who prepares ceiling materials for the construction of a building and performs ceiling work is called a ceiling installation worker. Also, a contractor's worker who prepares electrical wiring for the construction of a building and performs wiring work is called a wiring worker. Note that each step in the construction of a building is usually performed by multiple workers. Therefore, a ceiling installation worker is not limited to a single worker, but refers to one or more workers who perform ceiling work in the construction of a building. The same applies to wiring workers, etc.

[0024] Next, once the interior construction work is complete and the floors, walls, and ceilings are finished, installation work begins (Step S6). During installation work, the facilities required for the actual use of the building are installed. For example, facilities for electricity, gas, water, drainage, air conditioning, toilets, disaster prevention, broadcasting, etc., as well as lighting, escalators, elevators, etc. are installed. These tasks are carried out by workers from businesses such as electrical contractors, telecommunications contractors, waterworks contractors, firefighting contractors, and cleaning facility contractors.

[0025] Lighting installation work also requires the work to be done by a qualified electrician, as the lighting fixtures must be electrically connected. Lighting can be installed in places other than the ceiling, but lighting fixtures installed on the ceiling are usually connected to wiring prepared in the attic by a qualified electrician and electrically connected. When installing air conditioning equipment in the ceiling during installation work, the equipment is also connected to wiring prepared in the attic by a qualified electrician.

[0026] Typically, in rooms in buildings such as office buildings, large lighting fixtures and air conditioning equipment installed on the ceiling are fixed with hanging materials. Therefore, workers who install such large lighting fixtures and air conditioning equipment also install the large lighting fixtures and air conditioning equipment on the ceiling by fixing them to hanging materials suspended from ceiling inserts.

[0027] In order to complete the lighting installation work in time, the lighting fixture manufacturer manufactures the lighting fixtures required for the construction and delivers them to an electrical materials trading company that manages electrical equipment materials (Step S7). The electrical materials trading company manages inventory of not only lighting fixtures but also materials such as switches, outlets, electrical wires, cables, distribution boards, antennas, distribution boards, intercoms, fire alarms, etc., and supplies the electrical equipment materials required for the construction work in the required quantities (Step S8). In this specification, employees of companies that manufacture or deliver lighting fixtures are referred to as lighting fixture suppliers.

[0028] In the installation process, the lighting installation and the air conditioning installation are carried out separately. Although it is possible to do them simultaneously or for the same person to install both, it is more common to divide the work among them in consideration of work efficiency. This is how buildings are constructed.

[0029] In this specification, the term "installation worker" refers to one or more workers who install lighting, air conditioning, etc., and may include cases where the same person installs both lighting and air conditioning, as described above. On the other hand, the term "lighting installation worker" refers to one or more workers who install lighting but do not install air conditioning. The term "air conditioning installation worker" refers to one or more workers who install air conditioning but do not install lighting.

[0030] First Embodiment Next, the construction process of a building according to the first embodiment will be described. The building 1 according to the first embodiment has a multi-story structure and includes corridors and rooms. However, it may also be a single-story building. Figure 2 is a schematic diagram showing an example of the structure of a room on a specific floor of the building 1.

[0031] Building 1 forms a living space with floor 2, walls 3, ceiling 4, and windows 5. Note that the living space may not have windows 5 and may only have walls 3 on the sides. Also, multiple lighting fixtures 10 and multiple air conditioning devices 90 are installed on the ceiling. Note that the number of air conditioning devices 90 may be one.

[0032] Before describing the lighting fixture 10 according to the present invention, the differences in installation structures between various fixtures installed on a ceiling that are fixed by a hanging material and those that are not will be explained using Figures 3 and 4. Figure 3 shows an installation example of a ceiling-installed fixture that does not require fixing by a hanging material, and Figure 4 shows an installation example of a ceiling-installed fixture that does require fixing by a hanging material.

[0033] As shown in Fig. 3, small ceiling-mounted fixtures such as a surveillance camera 100, a downlight 101, an emergency light 102, or a smoke detector sensor 103 are installed without being fixed by a hanging member 20 such as a hanging bolt or a diagonal member 30. Such small ceiling-mounted fixtures are permitted to be installed without a hanging member because the load applied to the ceiling material is small.

[0034] On the other hand, as shown in Fig. 4, ceiling-mounted base lighting 104, which is installed on the ceiling surface, and recessed base lighting 105, which is installed by penetrating the ceiling material and appears to be recessed when viewed from the living room, are fixed and installed using a hanging material 20. Such ceiling-mounted fixtures place a large load on the ceiling material, so if they are not fixed with a hanging material, there is a high risk of them falling off in the event of an earthquake, for example. Therefore, rather than using an installation structure that places all of the load on the ceiling material, the ceiling-mounted fixture itself is supported by a hanging material.

[0035] For example, in a building such as an office building, small ceiling-mounted fixtures such as downlights 101 are installed in narrow spaces such as corridors, while large lighting fixtures such as base lights 104 and 105 are installed in large spaces such as living rooms. Although small lighting fixtures may be installed in some areas, the majority of lighting fixtures installed throughout a room are large. Therefore, when using base lights such as those shown in Figure 4, the lighting is fixed in place using hanging materials during installation work.

[0036] The lighting fixture 10 according to the present invention has performance equivalent to that of the base lighting shown in Fig. 4, and does not require fixing with a hanger during lighting installation work, as shown in Fig. 3. In other words, the lighting fixture 10 is a lightweight large lighting fixture that is large enough to be handled as equivalent to base lighting, yet light enough not to require a hanger.

[0037] Here, in this specification, a lightweight large-sized lighting fixture is one that has a total luminous flux of 2500 lm or more, or has an area of ​​the light-emitting surface closest to the floor of 45,000 mm 2 The term "lightweight large-sized lighting fixture" refers to a lighting fixture that satisfies at least one of the following conditions: the light source element is 100 or more, or the light source element is 100 or more. Alternatively, the characteristics of a lightweight large-sized lighting fixture may be further specified by the condition that the weight is 0.5 kg or more but less than 2.5 kg.

[0038] Next, we will explain the lighting fixture 10, which is a lightweight, large-sized lighting fixture. Fig. 5 is a perspective view of the lighting fixture 10 as seen from the installation surface side where it is installed on a ceiling. Fig. 6 is a schematic diagram for explaining the light-emitting surface of the lighting fixture 10. Fig. 7 is a perspective view showing a light source element 16 used in the lighting fixture 10. The lighting fixture 10 explained based on Figs. 5 to 7 is a lighting fixture with a square light-emitting surface, measuring 450 mm in length and 450 mm in width, with a height from the ceiling installation surface to the light-emitting surface of 20 mm.

[0039] The light-emitting surface may be a square lighting fixture measuring 600 mm in height and 600 mm in width. The light-emitting surface may also be a rectangular lighting fixture measuring 150 mm in height and 600 mm in width, or a rectangular lighting fixture measuring 75 mm in height and 600 mm in width. The light-emitting surface may also be other polygonal, circular, or elliptical shapes, and the shape is not limited. In this application, shapes with chamfered corners are also referred to as squares or rectangles.

[0040] The lighting fixture 10 has a base plate 11, a cover 12, a buffer portion 13, a mounting adapter 14, a substrate 15, and a light source element 16. The base plate 11 functions as a reinforcing plate or a heat sink for the lighting fixture 10. For example, the base plate 11 is a metal plate formed in a rectangular shape. For example, the metal plate can be formed from aluminum.

[0041] In this specification, the term "light source" refers to a component that emits light, and the light source may be a light-emitting element such as an LED, or may be a combination of a light-emitting element and a wavelength conversion component. The term "wavelength conversion component" refers to a component that converts part or all of the light emitted by the light-emitting element into light of a different wavelength, such as a phosphor component.

[0042] The cover 12 is provided to cover the light source elements 16 arranged on the substrate 15. The cover 12 is translucent to the light emitted by the light source elements 16. The cover 12 is formed in a milky white color with light diffusing properties, for example, by dispersing titanium oxide or the like in a resin material. For example, an acrylic resin, such as polymethyl methacrylate resin, can be used as the resin material.

[0043] The buffer section 13 is provided on the outer periphery of the ceiling installation surface of the base plate 11. The buffer section 13 prevents the ceiling installation surface of the base plate 11 from coming into direct contact with the ceiling 4 (or ceiling material 40), thereby cushioning impacts. Furthermore, the buffer section 13 is not provided on a portion of the outer periphery of the base plate 11, and the thickness of the buffer section 13 provides a removal arm insertion port G.

[0044] The mounting adapter 14 is fitted into a power adapter 60, which will be described later. This power adapter 60 is attached to the ceiling material 40, and the mounting adapter 14 is attached to the ceiling 4 via the power adapter 60. The mounting adapter 14 is also connected to a DC harness 64 of the power adapter 60 and receives power from a DC power source.

[0045] The substrate 15 is an insulating substrate made of, for example, resin or ceramic, and has a light source mounting surface on which multiple light source elements 16 are arranged. The light source mounting surface of the substrate 15 is provided with a conductive pattern for supplying power to the light source elements 16. The material of the conductive pattern can be selected appropriately depending on the main material of the substrate 15. For example, in the case of a substrate made of a ceramic material, the conductive pattern preferably has a high melting point that can withstand the firing temperature of the ceramic sheet. For example, the conductive wiring may be made of a material containing a high-melting point metal such as tungsten and / or molybdenum. Furthermore, other metal materials such as nickel, gold, and / or silver may be provided as coating materials on the conductive pattern by plating, sputtering, vapor deposition, or the like. Furthermore, in the case of a substrate made of a resin material, the conductive pattern preferably is easy to process. For example, in the case of a substrate made of injection-molded resin, the conductive pattern preferably is easy to process by processes such as punching, etching, or bending, and has relatively high mechanical strength. Specific examples of materials for the conductive pattern include metals such as copper, aluminum, gold, silver, tungsten, rhodium, iron, nickel, and molybdenum, as well as iron-nickel alloys, phosphor bronze, and iron-containing copper.

[0046] 6 shows a view in which a portion covered by cover 12 has been removed so that the internal structure of cover 12 can be seen. Therefore, in reality, substrate 15 and light source element 16 in illumination fixture 10 are covered by cover 12. The surface of substrate 15 opposite the light source arrangement surface is in contact with base plate 11. Substrate 15 has a plurality of screw holes S, and is fixed to base plate 11 with screws via the screw holes S.

[0047] The light source elements 16 are evenly arranged on the substrate 15. On a light source arrangement surface measuring 450 mm square, the light source elements 16 are arranged at pitch intervals of 15 mm to 20 mm. As shown in FIG. 7 , the light source elements 16 include light emitting elements 17, a wavelength conversion member 18, and a sealing member 19. The light emitting elements 17 are mounted on the light source arrangement surface of the substrate 15, and electrodes of the light emitting elements 17 are electrically connected to a conductive pattern formed on the substrate 15. The wavelength conversion member 18 covers the light emitting elements 17.

[0048] The sealing member 19 can be made of a material that is electrically insulating, transparent to light emitted from a light source (e.g., transmittance of 70% or more), and fluid before solidification (e.g., before complete curing). For example, it may contain a resin raw material, such as silicone resin, epoxy resin, phenolic resin, polycarbonate resin, acrylic resin, TPX resin, polynorbornene resin, or modified or hybrid resins thereof. Silicone resin is particularly preferred because of its excellent heat resistance and / or light resistance (as used herein, "silicone resin" refers to "silicone-based resin," which encompasses modified resins or resins having at least a silicone skeleton). Such sealing raw materials may additionally contain fillers and / or phosphors, etc., as needed.

[0049] The sealing member 19 covers the wavelength conversion member 18. The portion of the sealing member 19 that covers the vicinity of the center of the top surface of the light emitting element 17 is recessed. In addition, multiple protrusions are provided in the peripheral portion surrounding this recessed portion. The protrusions are provided approximately evenly around the periphery of the recessed portion, and the recessed portion is contained within the area surrounded by the straight lines connecting adjacent protrusions. In this way, the sealing member 19 has a flat shape overall, and furthermore, the sealing member 19 having the recessed portion and multiple protrusions provides the light source element 16 with a batwing-shaped light distribution characteristic.

[0050] FIG. 8 is a diagram showing an example of the light distribution characteristics of a batwing shape. The horizontal axis represents the emission angle of the light emitted from the light source element 16, with the direction perpendicular to the light source arrangement surface on which the light source element 16 is arranged being 0°. The vertical axis represents the intensity of the light emitted from the light source element 16. The batwing-shaped light distribution characteristic is such that in the region where the emission angle ranges from 0° to -90°, there is a first intensity peak greater than the intensity when the emission angle is 0°, and in the region where the emission angle ranges from 0° to 90°, there is a second intensity peak greater than the intensity when the emission angle is 0°.

[0051] Incidentally, in order to obtain suitable batwing-type orientation characteristics, it is preferable that the size of the protrusion is not too large. For example, regarding the sealing member 19, when the height of the protrusion itself is "h" and the height of the bulge (the height of the sealing member excluding the protrusion) is "H", it is preferable to satisfy 0 < h ≤ H / 8, more preferably 0 < h ≤ H / 10, and even more preferably 0 < h ≤ H / 12.

[0052] Also, the sealing member 19 has at least a maximum thickness dimension smaller than the maximum width dimension. For example, the maximum width is at least twice the maximum thickness. The maximum thickness is preferably the height from the substrate 15 to the top of the protrusion of the sealing member 19. Such a flat-shaped sealing member provides batwing light emission from a lower height. Also, it is possible to suppress problems such as the light source element 16 being detached from the substrate due to accidental external force.

[0053] As an example of such a lighting fixture 10 with a length of 450 mm, a width of 450 mm, and a height from the ceiling installation surface to the light emission surface of 20 mm, in which a total of 576 light source elements 16 arranged in a 24×2 is 2, the total luminous flux is 4500 lm, the color temperature is 5000K, and the weight is 1.94 kg. That is, in one embodiment, the lighting fixture 10 is an example of a lightweight large-sized lighting fixture that satisfies one or more of the following: the total luminous flux is 4000 lm or more, the area of the light emission surface, which is the surface closest to the floor, is 202500 mm 2 or more, 500 or more light source elements are arranged, or the weight is less than 2.0 kg. <[

[0054] Another example of the lighting fixture 10, which differs in that the light-emitting surface is 150 mm long and 600 mm wide, has a total of 256 light source elements 16 arranged in an 8×32 matrix, and has a total luminous flux of 3450 lm, a color temperature of 2700 K, and a weight of 1.09 kg. In other words, the lighting fixtures 10 in the other examples have a total luminous flux of 3000 lm or more, or the area of ​​the light-emitting surface closest to the floor is 90,000 mm 2 This is an example of a lightweight large-sized lighting fixture that satisfies one or more of the following: it is 1.5 kg or larger, it has 200 or more light source elements, and it weighs less than 1.5 kg.

[0055] Next, the process up to the installation of the lighting fixture 10 in the construction of the building 1 according to the present application will be described. Note that differences from the process up to the construction of a building already explained using Fig. 1 will be explained in detail, and explanations of overlapping points will be simplified or omitted.

[0056] Because the lighting fixture 10 does not need to be fixed by the hanging member 20, in step S1, the architect or designer does not need to determine the position of the hanging member in accordance with the installation position of the lighting fixture 10. Furthermore, after the ceiling insert has been installed and the position of the hanging member 20 has been determined, if the position of the base light 104 in Fig. 4 is changed, a new hanging bolt must be installed, whereas this is not necessary for the lighting fixture 10. Therefore, the architect or designer can flexibly change the installation location of the lighting fixture 10 even after construction has progressed to a certain extent.

[0057] The processes from step S2 to step S4 are generally the same as those already explained. Next, in the interior construction work of step S5, ceiling construction is carried out to install the ceiling. Furthermore, before the ceiling is installed, the wiring to be laid above the ceiling is routed to a position higher than the ceiling. Figure 9 shows an example of the above-the-ceiling space after ceiling construction has been completed.

[0058] As shown in Figure 9, the attic space has a top and side defined by a concrete framework 80, and an underside defined by a ceiling 4 with ceiling materials 40 arranged on it. Each ceiling material 40 forming the ceiling 4 is fixed and supported by hanging materials 20 connected to ceiling inserts in the framework. Note that some of the hanging materials 20 are omitted from Figure 9 to avoid cluttering the illustration. Wiring 50 and wiring 51 are installed in the attic space through piping. This wiring is installed based on the design drawings and corresponds to the number of electrical devices, such as lighting and air conditioning, to be installed in the attic. The ceiling 4 is installed after a sufficient number of wiring is prepared to supply power to the electrical devices.

[0059] Here, the work of running the wiring through the ceiling is performed by a wiring worker who is qualified as an electrician. During this work, a connector is attached to the wiring 50 that is to be connected to the lighting fixture 10 by the wiring worker who is also qualified as an electrician. The connector is an example of an electric shock prevention connecting device that prevents electric shock during the work of connecting the wiring 50 to an electrical connection device that electrically connects the electrical connection devices.

[0060] If a shock-preventing connecting device such as a connector is provided, the work of connecting wiring 50 to lighting fixture 10 can be performed by a person who is not a licensed electrician. In the example of Figure 9, a connector is provided for wiring 50 that is to be connected to lighting fixture 10, but a shock-preventing connecting device such as a connector is not provided for wiring 51 that is to be connected to air conditioning equipment 90. Therefore, in compliance with Japanese laws and regulations at the time of filing, the work of connecting wiring 51 to air conditioning equipment 90 must be performed by a person who is a licensed electrician. Note that the illustration of wiring 50 has been partially omitted from Figure 9 to avoid cluttering the diagram.

[0061] Furthermore, since the air conditioning equipment 90 is fixed by the hanging material 20, hanging material 21 is provided as the hanging material 20 for fixing the air conditioning equipment 90. As of the time of Fig. 9, the air conditioning equipment 90 has not yet been installed, so the hanging material 21 has not fixed the air conditioning equipment 90.

[0062] The ceiling material 40 has openings for installing ceiling-mounted fixtures such as air conditioners 90 and lighting fixtures 10. The square openings shown in Fig. 9 are openings for air conditioners 90. The circular openings are openings for lighting fixtures 10. In the example of Fig. 9, of the total 18 ceiling materials 40 (6 x 3), two ceiling materials 40 each have an opening for installing air conditioners 90, and 12 ceiling materials 40 each have an opening for installing lighting fixtures 10.

[0063] As shown in FIG. 9, the opening provided for installing the lighting fixture 10 is smaller than the ceiling material 40. It is also sufficiently small compared to the light-emitting surface of the lighting fixture 10. In contrast to this, the downlight 101 and emergency light 102 shown in FIG. 3 have openings that are the same size as the lighting fixtures. In this specification, "sufficiently small" means that the opening is 1 / 3 or less of the area of ​​the light-emitting surface. Furthermore, "very small" means that the opening is 1 / 5 or less of the area of ​​the light-emitting surface. Furthermore, "extremely small" means that the opening is 1 / 10 or less of the area of ​​the light-emitting surface.

[0064] The opening for installing the lighting fixture 10 is formed, for example, in a circular shape with a diameter of 10 cm to 15 cm. The shape of the opening does not have to be circular, and may be a polygon with a maximum diameter of 15 cm or less. The shape of the opening may be determined based on the size and shape of the power adapter 60, etc. As will be described later, it is preferable that the opening be large enough for a worker's arm to fit through so that the wiring 50 can be reached from the living room side to install the lighting fixture 10.

[0065] As a specific example of the opening, a circular opening with a diameter of 15 cm is provided to install a lighting fixture 10 that is 450 mm long, 450 mm wide, and 20 mm high from the ceiling mounting surface to the light-emitting surface. Therefore, the lighting fixture 10 can be installed through an extremely small opening. As another example, a circular opening with a diameter of 12.5 cm is provided to install a lighting fixture 10 that is 150 mm long, 600 mm wide, and 20 mm high from the ceiling mounting surface to the light-emitting surface. Therefore, the lighting fixture 10 can be installed through an extremely small opening.

[0066] It should be noted that the ceiling material 40 does not need to have openings pre-formed. It is common practice to prepare the ceiling material 40 without openings, and then have workers drill holes in the ceiling material 40 at the site where the interior construction work is being carried out to create openings. The work of creating openings in the ceiling material 40 without openings can be carried out as needed. The shape of the openings that should be prepared may vary depending on the type of ceiling-mounted fixture to be installed. Therefore, the openings can be created when the ceiling material 40 is fixed to the ceiling with the hanging material 20 and attached to the ceiling, or they can be created after the ceiling is formed.

[0067] After the ceiling 4 is installed in this manner, the lighting is installed in the facility installation work of step S6. Figures 10 to 12 are diagrams for explaining the installation method of the lighting fixture 10. Figure 10 shows the connection relationship between the ceiling material 40, the power adapter 60, and the lighting fixture 10 as viewed from above from the ceiling, and Figure 11 shows it as viewed from the ceiling surface side (the lighting installation surface side). Figure 12 also shows the structure when the power adapter 60 and the lighting fixture 10 are connected and installed on the ceiling material 40.

[0068] It should be noted that once the ceiling 4 is installed in the building, the living space, which is the space that forms the living room shown in Figure 2, and the attic space, which is the space that forms the attic space shown in Figure 9, are treated as distinct spaces. Here, the presence or absence of an opening in the ceiling material 40 is not taken into consideration. Specifically, when the ceiling 4 is formed in the building 1 using a ceiling material 40 that does not have an opening, the space above the ceiling 4 that has the ceiling 4 as part of the space is distinguished as the attic space, and the space below the ceiling 4 that has the ceiling 4 as part of the space is distinguished as the living space.

[0069] First, a worker present in the living space prepares the lighting fixture 10 and the power adapter 60 in the living space. The worker present in the living space fits the mounting adapter 14 of the lighting fixture 10 into the power adapter 60, thereby connecting the lighting fixture 10 to the power adapter 60. Furthermore, by connecting the lighting fixture 10 to the DC harness 64 of the power adapter 60, the lighting fixture 10 receives a supply of DC power from the power adapter 60. For example, a direct current voltage of 100 V is supplied. The connection to the DC harness 64 can also be performed by a worker who is not qualified as an electrician.

[0070] Since AC power is supplied via the wiring 50, the power adapter 60 has an AC / DC conversion function. The power adapter 60 also has an AC terminal block 61 as a connection part for electrically connecting to the connector-equipped wiring 50 via the connector. A worker in the living space puts his / her arm through the opening and pulls the connector-equipped wiring 50 installed in the attic space through the opening into the living space. Then, in the living space, the worker connects the connector of the connector-equipped wiring 50 to the AC terminal block 61.

[0071] In case the lighting fixture 10 has a dimming function for adjusting the intensity and color tone of light emitted, the power adapter 60 has a dimming terminal block 62 as a connection part for connecting to a dimming driver device that controls dimming. When using a lighting fixture 10 that does not have a dimming function, the dimming terminal block 62 is not necessary.

[0072] The power adapter 60 also has a fastener 63, and a worker in the living space uses this fastener 63 to install the power adapter 60 in the ceiling material 40. The fastener 63 has spring properties (elasticity) and is passed through an opening in the ceiling material 40 from the ceiling surface side (living space side). After passing through, the fastener 63 engages with the underside of the ceiling material 40, and therefore a load is applied to the ceiling material 40. When the lighting fixture 10 is attached to the ceiling 4, the load of one lighting fixture 10 and one power adapter 60 is applied to one ceiling material 40. The fastener 63 is not limited to a structure having spring properties, and may be any structure that applies a load to the ceiling material 40.

[0073] Figure 12 shows the state in which the connector-equipped wiring 50 is connected to the AC terminal block 61 of the power adapter 60, the mounting adapter 14 is fitted into the power adapter 60, and the lighting fixture 10 and power adapter 60 are attached to the ceiling material 40.

[0074] It is not important whether the work of connecting the connector-equipped wiring 50 to the power adapter 60 or the work of connecting the power adapter 60 to the lighting fixture 10 is performed first. Furthermore, the work of attaching the power adapter 60 to the ceiling material 40 may be performed before or after connecting the lighting fixture 10 to the power adapter 60.

[0075] As an example, power adapter 60 is attached to a circular opening with a diameter of 150 mm, and the penetration area that passes through the opening, excluding fastener 63, is a circle with a diameter of 148 mm, and the ceiling surface side that contacts the ceiling surface is a circle with a diameter of 160 mm. The weight of the power adapter is 0.45 kg, and when combined with the weight of lighting fixture 10, which is 450 mm long, 450 mm wide, and has a height of 20 mm from the ceiling installation surface to the light-emitting surface, the load on ceiling material 40 is 2.39 kg.

[0076] In another example, power adapter 60 is attached to a circular opening with a diameter of 125 mm, and the penetration area that passes through the opening, excluding fastener 63, is a circle with a diameter of 123 mm, and the ceiling surface side that contacts the ceiling surface is a circle with a diameter of 130 mm. The weight of the power adapter is 0.37 kg, and when combined with the weight of lighting fixture 10, which is 150 mm long, 600 mm wide, and has a height of 20 mm from the ceiling installation surface to the light-emitting surface, the load on ceiling material 40 is 1.46 kg.

[0077] As a guideline, a ceiling-mounted fixture with a load of less than 3.0 kg applied to the ceiling material 40 can be installed on the ceiling without requiring fixing with the hanging material 20. In this regard, in all of the above-mentioned embodiments, the power adapter 60 and the lighting fixture 10 are installed on the ceiling material 40, and the total load thereof satisfies the requirement of less than 3.0 kg.

[0078] In this way, since the lighting fixture 10 is not fixed by the hanging member 20, the installation work only requires that an opening large enough to pull the connector-equipped wiring 50 from the ceiling into the living space is provided. In other words, the work of installing the lighting fixture 10 on the ceiling 4 only requires an opening large enough to fit an arm through. On the other hand, if the lighting fixture needs to be fixed by the hanging member 20, it becomes difficult to install the lighting fixture from the living space side using only an opening large enough to fit an arm through.

[0079] Furthermore, by preparing the wiring 50 with connector in the ceiling space beforehand before installing the lighting fixture 10, even a person who is not a licensed electrician can electrically connect the lighting fixture 10 to the wiring in the ceiling space. Therefore, the same worker who drills a hole in the ceiling material 40 and installs it as part of the ceiling can also install the lighting fixture 10.

[0080] This means that in the construction of building 1, the lighting fixture supplier can supply lighting fixtures 10 to ceiling installers instead of to electrical materials trading companies, and the ceiling installers can then install the lighting fixtures 10 on the ceiling.

[0081] When removing the lighting fixture 10 installed on the ceiling 4, a removal arm 70 is used, as shown in Figure 13. Even when the lighting fixture 10 is attached to the ceiling 4 and the buffer section 13 of the lighting fixture 10 is in contact with the ceiling surface, the part where the buffer section 13 is not provided becomes the removal arm insertion port G, and the removal arm 70 can be inserted into this port. The lighting fixture 10 can be removed using the removal arm 70 inserted into the removal arm insertion port G.

[0082] Second Embodiment Next, a description will be given of the construction process of the building according to the second embodiment. The construction process of the building 1 according to the second embodiment is the same as the construction process of the building 1 according to the first embodiment, except for the process of installing the lighting fixtures 210 in step S6.

[0083] Figures 14 and 15 are diagrams for explaining a method of installing the lighting fixture 210. Figure 14 shows the connection relationship between the ceiling material 40, the power adapter 260, and the lighting fixture 210 viewed from above the ceiling, and Figure 15 shows it viewed from above the ceiling surface (the lighting installation surface). Figure 15 also shows the state in which the power adapter 60 and the connector-equipped wiring 50 are connected.

[0084] In the installation work of the lighting fixture 10 in the first embodiment, the fastener 63 of the power adapter 60 was attached to the opening in the ceiling material 40, but in the installation work of the lighting fixture 210 in the second embodiment, the power adapter 260 is placed in the ceiling and the fastener 263 of the lighting fixture 210 is attached to the opening in the ceiling material 40, which is different.

[0085] At the start of the installation work of the lighting fixture 210, the power adapter 260 is not yet placed in the attic, as shown in Fig. 14. Therefore, a worker in the living space puts his / her arm through the opening and pulls the connector-equipped wiring 50 provided in the attic space from the opening into the living space. Then, in the living space, the connector of the connector-equipped wiring 50 is connected to the AC terminal block 261 of the power adapter 260.

[0086] A worker in the living space places the power adapter 260 connected to the connector-equipped wiring 50 in the attic through the opening through which the connector-equipped wiring 50 passed. The connector-equipped wiring 50 also returns to the attic, and a DC harness 264 of the power adapter 260 protrudes from the opening into the living space. The lighting fixture 210 connects to the DC harness 264 and receives a supply of power. The lighting fixture 210 has a fastener 263 instead of the mounting adapter 14, and is attached to the ceiling 4 by passing the fastener 263 through the opening and hanging it on the ceiling material 40 above the attic.

[0087] The power adapter 260 is placed near the opening through which it passed, above the ceiling material 40 that has the opening. Therefore, when one lighting fixture 210 is attached to one ceiling material 40, one power adapter 260 connected to that lighting fixture 210 is placed in that one ceiling material 40. Therefore, just like the first embodiment, one power adapter 260 and one lighting fixture 210 act as a load on one ceiling material 40.

[0088] The power adapter 260 may be arranged on a ceiling material 40 to which the lighting fixture 210 is not attached. In the example of FIG. 15, the power adapter 260 may be moved so that it is arranged on a ceiling material 40 that does not have an opening. This reduces the load on one ceiling material 40. For example, the two power adapters 260 arranged on two ceiling materials 40 in FIG. 15 may be arranged on one ceiling material that does not have an opening. However, if the ceiling material 40 is too far away to reach even with outstretched arms, the task of arranging the power adapter 260 may be difficult or troublesome.

[0089] In this way, in the second embodiment, the power adapter 260 is placed in the attic and the lighting fixture 210 is attached to an opening in the ceiling material 40, thereby reducing the load applied to the ceiling material 40 by the fastener 263 compared to the first embodiment. In the first embodiment, the fastener 63 supported the weight of the power adapter 60 and the weight of the lighting fixture 10, but in the second embodiment, the fastener 263 only needs to support the weight of the lighting fixture 210 and does not need to support the weight of the power adapter 260.

[0090] The above describes the building, the method for constructing the building, and the method for installing the lighting fixture in the constructed building according to the present invention based on each embodiment, but the technical concept of the present invention is not limited to the specific embodiments described. In the embodiments, an example in which the lighting fixture according to the present invention is installed in a living room has been described, but the installation location is not limited to a living room and may be, for example, a front entrance or a hall. The living space is not limited to a living room and may refer to a space located on the opposite side of the ceiling from the attic.

[0091] Furthermore, the present invention can be applied even if it is not essential to have all of the components disclosed in each embodiment. A person skilled in the art or in the technical field to which the invention pertains can apply the present invention even if some of the components disclosed in the embodiments are not recited in the claims, as long as it is within the scope of design freedom, and the present specification discloses the invention on the premise that this includes such cases. [Industrial Applicability]

[0092] The buildings or lighting fixtures described in each embodiment can be used in the field of architecture such as office buildings and high-rise buildings. [Explanation of symbols]

[0093] 1 Building 2 beds 3. Wall 4. Ceiling 5. Windows 10, 210 Lighting equipment 11 Base Plate 12 Cover 13 Buffer section 14 Mounting adapter 15 PCB 16 Light source element 17 Light-emitting element 18 Wavelength conversion material 19 Sealing member 20, 21 Hanging material 30 Diagonal member 40 Ceiling material 50, 51 Wiring 60, 260 power adapter 61, 261 AC terminal block 62, 262 Dimming terminal block 63, 263 Fasteners 64, 264 DC harness 70 Removal arm 90 Air conditioning equipment 80 skeleton 100 surveillance cameras 101 Downlight 102 Emergency lighting 103 Smoke detector sensor 104, 105 Base lighting

Claims

1. A base plate and A substrate; 100 or more light source elements arranged on the substrate; 45,000 mm ２ a cover having a light-emitting surface of the above area; Equipped with The light source element is A light-emitting element; a wavelength conversion member covering the light emitting element; a sealing member that covers the wavelength conversion member and emits light having a bud wing-shaped light distribution characteristic; Equipped with A lightweight, large-sized lighting fixture to be installed inside a building, with a total luminous flux of 2500 lm or more, a weight of 0.5 kg or more but less than 2.5 kg, and a height from the ceiling mounting surface to the light-emitting surface of approximately 20 mm (however, lighting fixtures with a total luminous flux of 30,000 lm or more are excluded).

2. 2. The lightweight large-sized illumination fixture according to claim 1, wherein the 100 or more light source elements are arranged on the substrate at pitch intervals of 15 mm to 20 mm.

3. 3. The lightweight large-sized illumination fixture according to claim 2, wherein the sealing member has a recessed portion covering the vicinity of the center of the upper surface of the light-emitting element.

4. 4. The lightweight large-sized illumination fixture according to claim 3, wherein the sealing member has a plurality of protrusions provided in a peripheral portion surrounding the recessed portion, and the recessed portion is contained within an area surrounded by straight lines connecting adjacent ones of the protrusions.

5. The sealing member has a height h of the protrusion and a height H of the sealing member excluding the protrusion, 0<h≦H / 8 5. The lightweight large-sized illumination fixture according to claim 4, which satisfies the above.

6. 6. A lightweight large-sized illumination fixture according to claim 1, wherein the light-emitting surface is a rectangle measuring 450 mm in length and 450 mm in width, the total luminous flux is 4000 lm or more, the number of light source elements is 500 or more and 576 or less, and the weight is less than 2.0 kg.

7. 6. A lightweight large-sized illumination fixture according to claim 1, wherein the light-emitting surface is a rectangle measuring 150 mm in length and 600 mm in width, the total luminous flux is 3000 lm or more, the number of light source elements is 200 to 256, and the weight is less than 1.5 kg.

8. A lightweight large-sized lighting fixture as described in any one of claims 1 to 5, wherein the area of ​​the light-emitting surface exceeds 90,000 mm 2 .

9. A lightweight, large-sized lighting fixture as described in Claim 8, wherein the light-emitting surface is a rectangle measuring 600 mm in height and 600 mm in width, or a rectangle measuring 450 mm in height and 450 mm in width.

10. A lightweight, large-sized lighting fixture as described in any one of claims 1 to 5, wherein the light-emitting surface is a rectangle measuring 150 mm in height and 600 mm in width, or a rectangle measuring 75 mm in height and 600 mm in width.

11. 11. The lightweight large-sized lighting fixture according to claim 1, which is a lighting fixture to be installed on the ceiling of a building and is not fixed by a hanging member when installed on the ceiling.

12. A method for constructing a building in which a lightweight large-sized lighting fixture according to any one of claims 1 to 11 is installed on the ceiling, comprising: a step of providing wiring with an electric shock prevention connector as wiring for electrically connecting the lightweight large-sized lighting fixture among a plurality of wirings arranged in the ceiling space; forming a ceiling by arranging a plurality of ceiling materials; a step of connecting the wiring with the electric shock prevention connector arranged in the attic space above the formed ceiling to a power adapter prepared in a living space below the formed ceiling through an opening provided in the ceiling material, using the electric shock prevention connector of the wiring with the electric shock prevention connector; a step of electrically connecting the lightweight large-sized lighting fixture and the power adapter; a step of installing the lightweight large-sized lighting fixture on the ceiling material by passing a fastener of the lightweight large-sized lighting fixture electrically connected to the wiring with the electric shock prevention connector or the power adapter electrically connected to the wiring with the electric shock prevention connector through an opening in the ceiling material; A method having the following.

13. A method for constructing a building in which the lightweight large-sized lighting fixture according to any one of claims 1 to 11 is installed on the ceiling, comprising: a step of providing wiring with an electric shock prevention connector as wiring for electrically connecting the lightweight large-sized lighting fixture among a plurality of wirings arranged in the ceiling space above the ceiling formed by arranging a plurality of ceiling materials; a step of connecting the wiring with the electric shock prevention connector, which is arranged in the attic space above the formed ceiling, to a power adapter through an opening provided in the ceiling material, using the electric shock prevention connector of the wiring with the electric shock prevention connector; a step of installing the lightweight large-sized lighting fixture on the ceiling material by passing a fastener of the lightweight large-sized lighting fixture electrically connected to the wiring with the electric shock prevention connector or the power adapter electrically connected to the wiring with the electric shock prevention connector through an opening in the ceiling material; A method having the following.

14. A method for constructing a building in which a lightweight large-sized lighting fixture according to any one of claims 1 to 11 is installed on the ceiling, comprising: a step of providing wiring with an electric shock prevention connector as wiring for electrically connecting the lightweight large-sized lighting fixture among a plurality of wirings arranged in the ceiling space above the ceiling formed by arranging a plurality of ceiling materials; a step of connecting the wiring with the electric shock-prevention connector and a power adapter using the electric shock-prevention connector of the wiring with the electric shock-prevention connector, and placing the power adapter electrically connected to the wiring with the electric shock-prevention connector in the ceiling space; a step of electrically connecting the lightweight large-sized lighting fixture prepared in a living space below the formed ceiling to the power adapter; a step of installing the lightweight large-sized lighting fixture on the ceiling material by passing a fastener of the lightweight large-sized lighting fixture electrically connected to the wiring with the electric shock prevention connecting device through an opening in the ceiling material; A method having the following.

Images