JP5396170B2 - Lighting system - Google Patents

Description

  The present invention relates to a lighting system including a light emitting panel attached to a ceiling, a wall, or the like.

  In this type of lighting system, generally, a light emitting panel is attached by screwing a screwing portion provided in the panel to a ceiling or wall support through a screw (for example, see Patent Document 1).

  However, in such a lighting system, it is necessary to remove the screw when changing the arrangement after the construction of the light emitting panel, and it takes time to change the arrangement, and the members such as the ceiling and the wall are thin or hard, so However, it was difficult to place in places where it was difficult to install, and there were restrictions on the installation location. Further, since screw holes are generated by screwing, the surface of the ceiling, wall, etc. is damaged each time the arrangement is changed.

JP 2007-220624 A

  The present invention solves the above-described problem, and in a lighting system including a light-emitting panel, the mounting position of the light-emitting panel can be easily rearranged, and the light-emitting panel mounting surface can be mounted with little damage. An object of the present invention is to provide a lighting system that can be used.

In order to achieve the above object, the invention of claim 1 is an illumination system including a panel body having a power source unit and a planar light emitting unit that emits light upon receiving power supply from the power source unit. An electrostatic contact sheet is disposed on the surface of the panel body that is not irradiated with light, and the panel body is attached to a wall body including any one of a ceiling surface, a wall surface, and a floor surface through the electrostatic contact sheet.

  According to a second aspect of the present invention, in the illumination system according to the first aspect, the power source unit is a power feeding unit fed from a commercial power source, and a power receiving unit that receives power from the power feeding unit and supplies the power to the planar light emitting unit. The power is fed from the power feeding unit to the power receiving unit in an electrically non-contact state.

  According to the first aspect of the present invention, the light emitting panel can be attached simply by bringing it into contact with a support such as a ceiling surface, a wall surface, or a floor surface by adhesion by electrostatic force. In addition, since the screws are not required, the support can be attached with almost no damage.

  According to the invention of claim 2, since the light emitting panel does not need to be connected to an external power source, it can be attached more easily.

The figure which shows the attachment state of the illumination system which concerns on the 1st Embodiment of this invention. The exploded perspective view of the lighting system. (A) is the perspective view seen from the irradiation surface side of the flat light emission part in the illumination system, (b) is the perspective view which looked at the flat light emission part from the non-irradiation surface side, (c) is the side cross section of the flat light emission part Figure. The perspective view of the other planar light emission part in the illumination system. The disassembled perspective view of the illumination system which concerns on the 2nd Embodiment of this invention. The sectional side view of the lighting system. The disassembled perspective view of the illumination system which concerns on the modification of the said embodiment. The disassembled perspective view of the illumination system which concerns on the other modification of the said embodiment. The disassembled perspective view of the illumination system which concerns on another modification of the said embodiment.

  Hereinafter, an illumination system according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 shows a case where the present lighting system is applied indoors, and FIG. 2 shows a configuration of the present lighting system. This illumination system includes a light-emitting panel 1 (panel body) having a flat light-emitting portion made of an organic EL or LED panel. The light emitting panel 1 is provided with an electrostatic contact sheet on the surface of the panel 1 that is not irradiated with light, and is attached to the ceiling wall 100 as a support via the electrostatic contact sheet.

  The light emitting panel 1 includes a flat light emitting unit 3 made of an organic EL or LED panel, a power supply unit 4 for supplying power to the flat light emitting unit 3, and a rectangular housing for housing the flat light emitting unit 3 and the power supply unit 4. 5. The housing 5 is composed of a housing having a lower surface opening made of an insulating member, and the power source unit 4 and the planar light emitting unit 3 are sequentially inserted into the opening from below and fixed. This fixing is performed by a locking portion (not shown) provided on the side surface or the bottom surface.

  When the light emitting panel 1 is attached to the ceiling wall 100, the electrostatic contact sheet 2 is mounted on the top plate side of the housing 5 corresponding to the non-irradiated surface side of the flat light emitting unit 3, and the electrostatic contact sheet 2 in this mounted state. Is pressed against the ceiling wall 100 so as to be sandwiched between the ceiling wall 100 and the ceiling wall 100. Thereby, the light emitting panel 1 is bonded and held on the ceiling wall 100 by the electrostatic force generated by the electrostatic contact sheet 2.

  The electrostatic contact sheet 2 has adhesion / holding performance that makes it difficult for the light emitting panel 1 to fall when the light emitting panel 1 is attached to the ceiling wall 100 using electrostatic force, and is easy to move after installation. For example, as a commercially available electrostatic contact sheet, “Kowa Writing Sheet” (product name) (product name) (manufactured by Kowa International Co., Ltd.) using a polypropylene member (thickness 50 μm) as a sheet material is used. Etc. The shape of the electrostatic contact sheet 2 can be arbitrarily set according to the shape of the light emitting panel 1.

  In addition, the electrostatic contact sheet 2 is made of a material having flexibility and flexibility (for example, silicon) between the electrostatic contact sheet 2 and the light emitting panel 1 in order to make the light emitting panel 1 more difficult to drop when attached. It is also possible to provide rubber, urethane-based elastomer, etc. Thereby, the influence of the corrugation on the surface of the electrostatic contact sheet 2 can be reduced, and the adhesion between the electrostatic contact sheet 2 and the light emitting panel 1 can be improved. Moreover, when attaching the light emission panel 1, it is also possible to provide an auxiliary attachment bracket (not shown) etc. in the ceiling wall 100 as needed, and to engage or screw the light emission panel 1. FIG. In addition, it is preferable that the electrostatic contact sheet 2 is disposed in a state in which it is difficult for a user in the space to see when the light emitting panel 1 is installed.

  The power supply unit 4 has a lighting circuit unit (not shown) that converts electric power supplied from a commercial power source through an electric wire or the like into a predetermined power supply voltage form, and feeds power to the flat light emitting unit 3 from the lighting circuit unit by an electric wire or the like. To do. Here, all the light emitting elements (organic EL elements, LED elements, etc.) constituting the light emitter used in the planar light emitting unit 3 are electrically connected to the lighting circuit unit via a conductive wire or the like.

  The lighting circuit unit includes a microcomputer having a built-in ROM, RAM, and the like and a control unit having a flash memory. The control unit systematically controls the drive current for each light emitting element by a predetermined control program stored in the memory. To do. Here, the predetermined control program is, for example, when one of a plurality of switches constituting an operation switch for lighting control is operated, a light emission pattern of the flat light emitting unit 3 by a predetermined light emission pattern control signal assigned to the switch. Is to control. For example, when a switch for controlling the intensity of light emission is operated, the light emission intensity is controlled by controlling the increase / decrease of the current flowing to each LED element or the duty ratio of blinking.

  Next, a configuration in the case where the planar light emitting unit 3 of the light emitting panel 1 is an organic EL panel will be described with reference to FIGS. 3 (a), 3 (b), and 3 (c). The flat light emitting unit 3 includes a panel body 31 made of a transparent rectangular substrate such as glass or transparent resin, a transparent electrode 32 made of ITO (indium tin oxide) or the like formed on the substrate of the panel body 31, and a transparent electrode 32. An organic light emitting layer 33 laminated on the organic light emitting layer 33, a metal electrode 34 made of Al or the like laminated on the organic light emitting layer 33, a seal for sealing the transparent electrode 32, the organic light emitting layer 33, and the metal electrode 34 from the metal electrode 34 side. A stop cover 35 is provided. The panel main body 31 forms a light irradiation surface of the organic EL panel, and also serves as a grip portion that holds the entire EL panel.

  When the planar light emitting unit 3 is sealed with the sealing cover 35, the transparent electrode 32 and the metal electrode 34 are electrically contacted by a plurality (two in this case) of conducting portions formed on the outer surface of the sealing cover 35, respectively. 36. The planar light emitting unit 3 is supplied with predetermined power from the outside via these two electrical contacts 36. The electrical contact 36 can be formed by any method such as plating or vapor deposition of a metal layer, attaching a metal plate, and mixing and molding a plastic with a conductive material. In addition, although the electrical contact 36 was provided in the non-irradiation surface side of the peripheral part of EL panel, you may provide in the irradiation surface side by the mutual positional relationship with the electrical contact of the instrument side to connect.

  The organic light emitting layer 33 has, for example, an organic thin film containing a fluorescent organic compound and generates various emission colors. For example, the organic light emitting layer 33 may be laminated with elements so that white light can be taken out, or the elements that emit red light, green light, and blue light may be adjusted together. Moreover, it is not limited to these luminescent colors.

  When the flat light emitting unit 3 is provided with a frame (not shown) on the peripheral edge of the panel body 31 and the non-irradiated surface side for strengthening the panel, an external power source (not shown) is provided on the inner surface of the frame. There are a plurality of electrical contacts for connecting to. The material constituting the frame is desirably a material that is difficult to break, such as a resin composition such as plastic or rubber, or a metal such as aluminum alloy, iron, or magnesium alloy. Further, the means for disposing the frame body on the organic EL panel can be selected within a range that does not impede practically, such as mechanically fitting or bonding with an adhesive. Furthermore, if the panel main body 31 and the frame are separable means, when the deteriorated organic EL panel is replaced, it becomes possible to recycle the frame body or recycle it by separating it, Useful for protecting the global environment.

  In addition, as a method of forming the electrical contact, it is possible to arbitrarily select a method such as forming a metal layer by plating or vapor deposition, attaching a metal plate, or mixing a plastic with a conductive material. An auxiliary frame may be provided between the panel body 31 and the frame. By providing the auxiliary frame, the strength and impact resistance of the panel body can be improved. You may provide an auxiliary | assistant frame in a part of panel body peripheral part. Furthermore, it is possible to form the auxiliary frame from a conductive material in advance and to insulate the portions other than the contact portions to be electrical contacts.

  FIG. 4 shows a case where an LED panel is used as the light emitter of the flat light emitter 3. Here, a large number of LED light sources 33a are arranged in a planar manner on a main body substrate (not shown) and stored in a predetermined housing. In each LED light source 33a, LED elements that emit red light, green light, and blue light may be combined into one light source, or may be divided according to each emission color. By controlling the current flowing to each LED element, the color component of the light source can be changed. Further, the LED elements are connected in series with each other, and are configured to be collectively controlled from a control unit in the lighting circuit unit.

  The planar light emitting unit 3 can use an optical member as necessary in order to obtain various light distribution properties in the irradiated light. As this optical member, various lenses, prisms, light diffusion, condensing, polarization, wavelength cut, wavelength conversion filter, louver, and the like can be used on the irradiation surface side of the organic EL panel or LED panel. Moreover, as a raw material which comprises an optical member, translucent plastic, glass, a painted metal plate, etc. from which a desired optical characteristic is acquired are mentioned.

  According to the present lighting system, the light emitting panel 1 can be attached simply by contacting the support such as the ceiling wall 100 or the wall surface, so that it can be easily attached to any attachment surface of these supports, Can be installed in places where it is difficult to stop. Moreover, since screwing or the like is not required, the panel can be easily attached and detached, and the light emitting panel 1 can be rearranged without substantially damaging the support. Moreover, since there are no fasteners such as screws around the light-emitting panel 1 at the time of attachment, the appearance is good.

  Next, an illumination system according to a second embodiment of the present invention will be described with reference to FIGS. In the present illumination system, the power supply unit 4 includes a power supply unit 4b connected to a commercial power supply, and a power reception unit 4a that supplies the power received from the power supply unit 4b to the flat light emitting unit 3, from the power supply unit 4b. Electric power is supplied to the power receiving unit 4a in an electrically non-contact state. Here, the recessed part 101 for attaching the electric power feeding part 4b to the ceiling wall 100 is formed, and the electric power feeding part 4b and the light emission panel 1 are attached to the ceiling wall 100 so that it may face across the wall.

  The power feeding unit 4 b includes a primary transformer unit 45, an inverter circuit unit 44 that supplies power to the primary transformer unit 45, a housing 43 that houses the primary transformer unit 45 and the inverter circuit unit 44, and a cover 46 that covers an opening of the housing 43. With.

  The inverter circuit unit 44 includes, for example, a high-frequency inverter circuit that outputs high-frequency power based on an external power source and an inverter control circuit that controls the high-frequency inverter circuit, and supplies power to the primary transformer unit 45 with high-frequency power. it can. The housing 43 is formed of a rectangular housing having a lower surface opening made of an insulating member. The cover 46 may be omitted.

  The power receiving unit 4a includes a secondary transformer unit 42 that is electromagnetically coupled to the primary transformer unit 45, and a lighting circuit unit 41 that supplies lighting power to the planar light emitting unit 3 based on this output. The lighting circuit unit 41 includes a power conversion circuit having a rectifying diode and a smoothing capacitor. The power conversion circuit rectifies and smoothes the induced voltage from the secondary transformer unit 42 to convert the power.

  The primary transformer unit 45 and the secondary transformer unit 42 include a primary coil 47 and a secondary coil 49, respectively, and core members 48 and 50 around which the coils 47 and 49 are wound to form an external magnetic path. The core members 48 and 50 are formed of a ferrite material or the like, and are disposed so as to form a closed magnetic circuit in a state of facing each other. The primary transformer unit 45 and the secondary transformer unit 42 constitute a transformer structure that is electromagnetically coupled by a primary coil 47 and a secondary coil 49 and is detachable from each other. The primary transformer unit 45 and the secondary transformer unit 42 may have the same structure.

  By arranging the primary coil 47 and the secondary coil 49 to face each other in the proximity state, an electromotive force can be generated in the secondary coil 49 from the primary coil 47 fed from the inverter circuit unit 44. Thereby, electric power is transmitted from the power supply unit 4b to the power reception unit 4a in a non-contact manner by electromagnetic induction.

  Here, since a part of the power feeding unit 4b is attached to the recess 101, the primary coil 47 is disposed close to the secondary coil 49, so that the power receiving sensitivity of the power receiving unit 4a is increased. Note that the power feeding unit 4b may be attached to the ceiling wall 100 without forming the recess 101 as long as the power receiving unit 4a can secure a desired received power by electromagnetic induction.

  In addition, the primary transformer unit 45 and the secondary transformer unit 42 are formed in a thin flat plate block in which the coils and the core are integrated by forming the coils 47 and 49 and the core members 48 and 50 in a planar shape. can do. For example, it can be formed as a magnetic sheet by combining a coil wound in a planar shape with a magnetic body. This magnetic body can be easily incorporated into the power feeding section 4b and the power receiving section 4a, and preferably has a low iron loss. As the magnetic material, for example, a sheet-like amorphous magnetic material made of amorphous material is suitable. When the magnetic body is made of a sheet-like amorphous magnetic body, the area thereof is larger than the plane of the coil, and the thickness thereof can be set to 0.1 mm or less, for example.

  As described above, according to the present lighting system, since the light emitting panel 1 is supplied with electric power from the power supply unit 4b in a non-contact manner, the light emitting panel 1 does not need to be connected to a commercial power source and can be easily attached. Further, if the non-contact power transmission range from the power supply unit 4b is expanded from the area of the non-irradiated surface of the light emitting panel 1, or the power transmission range is arranged at various places, the degree of freedom of the mounting range of the light emitting panel 1 is further increased. The position can be easily changed. In addition, by transmitting power at a high frequency by the high frequency inverter circuit, the secondary coil on the receiving side can be reduced in size, and the light emitting panel 1 can be reduced in weight.

  In addition, when the power receiving unit 4a is not in proximity to the power feeding unit 4b and is not fed from the power feeding unit 4b to the power receiving unit 4a, non-contact power transmission is suppressed in order to save energy and protect metal foreign objects from overheating. It is necessary to stop or suppress the oscillation of the high-frequency inverter circuit of the power feeding unit 4b. Here, a forced stop circuit that forcibly stops or intermittently oscillates continuous oscillation of the high frequency inverter circuit when the power supply load of the power supply unit 4b is low is provided in the inverter circuit unit 44 in advance, and the high frequency inverter circuit is intermittently oscillated using the forced stop circuit. Thus, non-contact power transmission can be suppressed by preventing continuous oscillation.

  Further, when the power receiving unit 4a is placed close to the power feeding unit 4b and opposed to each other, it is necessary to transmit power for power feeding. In this case, the high frequency inverter circuit is continuously oscillated. Control. For this reason, as a function of determining whether the load is correct as viewed from the power supply unit 4b, a harmonic resonance circuit that detects harmonics of the transmission power frequency on the power supply unit 4b side is provided on the power reception unit 4a side. When the reception level detected by the harmonic resonance circuit reaches a predetermined value, the detection signal is sent from the power reception unit 4a side to the power supply unit 4b side, and the forced stop circuit is based on the detection signal. The high frequency inverter circuit of the power feeding unit 4b can be continuously oscillated to transmit power.

  Next, a modification of the above embodiment will be described with reference to FIG. In this modification, the block of the primary transformer unit 45 in the power feeding unit 4b is extended in one direction. In accordance with this shape, the housing 43 of the power feeding part 4b, the cover 46, and the recess 101 of the ceiling wall 100 are similarly extended so that the power feeding part 4b is attached to the recess 101. The light emitting panel 1 can be freely attached to receive power in the extending direction of the power supply surface of the power supply unit 4b.

  Next, another modification of the above embodiment will be described with reference to FIG. This modification shows a case where the power supply surface of the power supply unit 4b is expanded in all directions. Thereby, the light emission panel 1 can be widely moved and arrange | positioned to the four directions of the electric power feeding surface of the electric power feeding part 4b, and also the freedom degree of arrangement | positioning increases.

  Next, another modification of the above embodiment will be described with reference to FIG. In this modification, the electrostatic contact sheet 2 has a frame shape having an opening 21 and is bonded only at the frame portion without blocking all the non-irradiated surface of the light emitting panel 1. When the electrostatic contact sheet 2 has an electrical loss characteristic or the like and the power supply area of the power supply unit 4b decreases due to electromagnetic shielding action between the power reception unit 4a and the power supply unit 4b, the decrease is suppressed. Can do. The shape of the opening 21 of the electrostatic contact sheet 2 may be arbitrarily changed depending on the degree of the influence of the electrostatic contact sheet 2.

  In addition, this invention is not limited to the structure of the said various embodiment, A various deformation | transformation is possible suitably in the range which does not change the meaning of invention. For example, in each of the above embodiments, an arbitrary number of LEDs or organic EL panels may be arranged in a package depending on their size, and a light transmissive panel or the like may be arranged in the package to be modularized. In the second embodiment, the electromagnetic induction type using transformer coupling is used for non-contact power transmission. However, a radio wave reception type using radio waves may be used. Moreover, the electrostatic contact sheet 2 may have one surface thereof, for example, a surface having a weak adhesive force due to static electricity, fixed to the light emitting panel 1 side in advance.

1 Light-emitting panel (panel body)
2 Electrostatic contact sheet 3 Planar light emitting part (LED, organic EL panel)
4 Power supply unit 4a Power reception unit 4b Power supply unit

Claims (2)

In an illumination system including a panel body having a power source unit and a planar light emitting unit that emits light by receiving power supply from the power source unit,
In the panel body, an electrostatic contact sheet is disposed on a surface of the panel body that is not irradiated with light, and the panel body is attached to a wall body including any one of a ceiling surface, a wall surface, and a floor surface through the electrostatic contact sheet. And lighting system. The power supply unit includes a power feeding unit fed from a commercial power source, and a power receiving unit that receives power from the power feeding unit and supplies the power to the planar light emitting unit
The illumination system according to claim 1, wherein power is supplied from the power supply unit to the power reception unit in an electrically non-contact state.

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