JP2013030290A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture using as a light source a lamp equipped with an E-type base capable of preventing wrong use of a light source other than a conformed one.SOLUTION: The lighting fixture 10 is provided with a fixture body 11, a socket 12, and a shutoff member 13. On the socket 12, a light source fitted to the fixture body and equipped with the E-type base C1 is mounted. The shutoff member 13 is provided at a current route R for connecting the socket and a power source E, and shuts off the current route when a light source other than a conformed one is mounted on the socket.

Description

  Embodiments of the present invention relate to a lighting fixture to which a lamp with an E-shaped base is attached.

  This type of E-shaped base has been conventionally widely used as a base for incandescent bulbs, and various lighting fixtures using these incandescent bulbs as light sources are configured. In these lighting fixtures, from the viewpoint of energy saving and long life, a fluorescent lamp (generally a light bulb) composed of a light emitting unit, a lighting device, and an E-shaped base instead of an existing incandescent bulb with relatively large power consumption. (Referred to as a fluorescent lamp).

  In addition, for further energy saving and longer life, an LED lamp composed of an E-shaped base using a light emitting diode (hereinafter referred to as “LED”) with less power consumption as a light source was mounted on an existing lighting fixture. Used in place of incandescent bulbs and bulb-type fluorescent lamps. Further, in recent years, dedicated lighting fixtures designed for mounting bulb-type fluorescent lamps and LED lamps composed of these E-shaped caps are becoming widespread from the stage of fixture design.

JP 2010-097890 A JP 2001-084804 A

  In these dedicated lighting fixtures, the bulb-type fluorescent lamps and LED lamps generate less heat than incandescent bulbs, so that the heat resistance of the fixture body can be lowered. For this reason, it is possible to reduce the size of the instrument, and it is possible to reduce the current capacity and the thermal grade of the components such as the electric wires to be used, thereby reducing the instrument cost.

  However, since the caps of the bulb-type fluorescent lamps and LED lamps use the E-type caps like the incandescent bulbs, there is a possibility that existing incandescent bulbs may be mounted even when configured as a dedicated instrument. When an incandescent bulb is installed, it will light, but the incandescent bulb consumes more power than a bulb-type fluorescent lamp or LED lamp. This causes the temperature to become higher than the design temperature, causing a problem in heat resistance.

  On the other hand, there is also a means to configure the appliance so that it can not be installed depending on the external shape of the incandescent bulb, but in recent years, these bulb-type fluorescent lamps and LED lamps are increasingly configured to approximate the incandescent bulb, It is difficult to regulate the mounting due to the difference in the external shape of these lamps, and it is difficult to prevent misuse of incandescent bulbs for exclusive use of bulb-type fluorescent lamps and LED lamps.

  The present invention has been made to solve the above-described problems, and is intended to provide a lighting apparatus that uses a lamp having an E-shaped base that can prevent misuse of light sources other than a compatible light source as a light source. It is.

  The lighting apparatus of the embodiment includes an apparatus main body, a socket, and a blocking member. The socket is provided with a light source provided on the instrument body and having an E-shaped base. The blocking member is provided in an electric circuit that connects the socket and the power source, and interrupts the electric circuit when a light source other than the compatible light source is attached to the socket.

  According to the present invention, even if a light source different from the compatible light source is used, it is possible to prevent the lighting from continuing, so that illumination using a lamp having an E-shaped base that can suppress damage to the instrument as a light source. An instrument can be provided.

The lighting fixture which concerns on embodiment of this invention is shown, (a) is a perspective view, (b) is sectional drawing shown notched partially. The schematic circuit diagram of a lighting fixture. Sectional drawing which similarly shows the terminal block of a lighting fixture. The table | surface which shows the relationship between the power consumption (electric current value) and the setting value of an electric current fuse in the incandescent light bulb which has the E-shaped base generally used widely, a bulb-type fluorescent lamp, and an LED light bulb. The modification of the lighting fixture which concerns on embodiment of this invention is shown, (a) is a perspective view, (b) is sectional drawing shown notched partially.

  Hereinafter, an embodiment of a lighting apparatus will be described with reference to the drawings.

  This embodiment is configured as a bracket-type lighting fixture dedicated to a bulb-type fluorescent lamp, and is configured not to light up when an incandescent bulb is attached in order to prevent misuse of the incandescent bulb.

  As shown in FIGS. 1 to 3, the lighting fixture 10 connects a fixture main body 11, a socket 12 provided with a bulb-type fluorescent lamp L <b> 1 provided on the fixture main body and having an E-shaped base C <b> 1, and a socket and a power supply E. And a blocking member 13 that blocks the electric circuit R when the incandescent lamp L2 is attached to the socket 12.

  As shown in FIG. 1, the instrument main body 11 includes a base body 11 a and a main body cover 11 b that is attached so as to be detachable from the base body. In the base body 11a, a support 11a1 is provided on the back surface side, a flange 11a2 is provided on the front surface side, and a socket fixture 11a3 is provided in the approximate center of the flange. The support 11a1, the flange 11a2 and the socket fixture 11a3 are each made of a steel plate, and in particular, the flange 11a2 for attaching the lamp is made of a white painted steel plate.

  The main body cover 11b is formed in a substantially U-shape with the back surface and the top and bottom surfaces open, and is attached so that the open portion on the back surface can be attached to and detached from the base body 11a by fixing means such as screws. . The main body cover 11b is made of a white coated steel plate, and is configured to perform indirect illumination in which light is emitted from the upper and lower openings 11b1 and 11b1 in the vertical direction of the installed wall surface X.

  As shown in FIGS. 1B and 2, the socket 12 includes an insulating case 12 a, a metal receiver 12 b, and a center contact 12 c. The insulating case 12a is configured, for example, in a bottomed cylindrical shape by an electrical insulating material such as porcelain, and a metal receiver 12b is provided on the inner surface of the cylinder. The metal receiver 12b is formed in a cylindrical shape in which a thread 12b1 is integrally formed on the entire inner peripheral surface by a conductive metal, in this embodiment, a copper plate. The inner diameter dimension of the cylinder and the pitch of the thread 12b1 are configured so that the E-shaped base C1 can be screwed. In the present embodiment, the E26 type base is configured to be screwed.

  The center contact 12c has a predetermined elasticity and is made of a metal having good conductivity, in the present embodiment, a phosphor bronze plate, and is provided at the bottom of the cylinder of the insulating case 12a so as to be electrically insulated from the metal receiver 12b.

  The socket 12 configured as described above is fixed to a substantial center of the socket fixture 11a3 in the base body 11a by a fixing means such as a screw so that the base insertion port 12d faces the front surface side. Then, a bulb-type fluorescent lamp L1 having an E-shaped base C1, in this embodiment an E26-shaped base, is mounted on the socket 12b of the socket 12.

  The blocking member 13 consumes more power than a lamp having an E-shaped base that exceeds a certain current value when lit, that is, a bulb-type fluorescent lamp L1, and a larger current flows than the current that flows through the bulb-type fluorescent lamp L1 when lit. When the incandescent light bulb L2 is installed in the socket 12, an overcurrent protection element that cuts off the electric circuit R, in this embodiment, a current fuse that cuts off the electric circuit R with a current value larger than the current value flowing through the light bulb shaped fluorescent lamp L1. Configured.

  It is preferable from the viewpoint of safety that the blocking member 13 is non-returnable and cannot be replaced. For example, when the return-type blocking member or the blocking member 13 that can be manually returned is installed at a position where it can be replaced, the user may return or replace the lamp without permission to use the incandescent bulb incorrectly. It cannot be prevented. For this reason, the blocking member 13 must be non-returnable and non-replaceable. The non-replacement can be realized easily and cost-effectively by installing the instrument body 11 at a position where it is not exposed in the attached state.

  For example, in the case of an instrument having a shade, the position that is not exposed in the attached state may be in the shade or on the back side of the attachment tool, but is preferably a position where work cannot be performed carelessly.

  Further, the blocking member 13 needs to act reliably even in a normal use state, and heat resistance is required. In this embodiment, a current fuse having a heat resistance of about 100 ° C. or higher is used as the fuse case. Further, the installation position on the appliance main body 11 is preferably positioned below the lamp because it is difficult to be affected by the lamp temperature during lighting. In this embodiment, the terminal block located below the lamp in the appliance installation state 14 is made less susceptible to the temperature at the time of lighting of the bulb-type fluorescent lamp L1, thereby improving the reliability of the shut-off operation.

  As shown in the schematic circuit diagram of FIG. 2, the non-returnable current fuse 13 that is a blocking member of the present embodiment is connected to one or both of the electric circuits R that connect the socket 12 and the power source E. Yes. And this current fuse 13 is provided in the instrument main body 11 in the position which cannot be visually recognized from the outside. In this embodiment, as shown in FIG.1 (b), it is provided in the terminal block 14 attached to the back surface side of the flange 11a2 in the space S1 formed by the flange 11a2 and the support 11a1 of the base body 11a. ing. As a result, the current fuse 13 cannot be visually observed and can be reliably prevented from being replaced by the user.

  As shown in FIG. 3, the terminal block 14 is made of a synthetic resin having good electrical insulation such as PBT (polybutylene terephthalate), and the electric wire w1 connected to the power source E and the socket 12 are electrically connected by the electric wire w2. The terminal block is connected to the terminal block 14 and has SL (screwless) terminals 14a and 14a. The current fuse 13 is accommodated in the space S2 on the back surface of the terminal block 14. Thereby, even when the main body cover 11b of the instrument main body 11 is removed, the current fuse 13 is covered with the surface side of the terminal block 14 and the flange 11a2, and is not exposed in the attached state, in other words, not visible. Provided on the instrument body 11.

  In the present embodiment, the current fuse 13 has a breaking current value set as follows. FIG. 4 is a chart showing the relationship between the power consumption (current value) and the set value of the current fuse 13 in an incandescent bulb, a bulb-type fluorescent lamp, and an LED bulb having an E-shaped base that is generally widely used.

  As is apparent from this figure, when a current fuse 13A that cuts off the electric circuit when a current of 0.3 A flows through the electric circuit R, all bulb-type fluorescent lamps and LED lamps having an E-shaped base are mounted. It can be turned on without interrupting the electric circuit. Further, when almost all incandescent bulbs are mounted, the electric circuit can be interrupted.

  Further, when the current fuse 13B is configured to cut off the electric circuit when a current of 0.2A flows in the electric circuit R, the electric circuit is cut off when almost all the bulb-type fluorescent lamps having the E-shaped base and all the LED lamps are mounted. Can be lit without Moreover, when all the incandescent bulbs are mounted, the electric circuit can be interrupted.

  Further, when the current fuse 13C is configured to cut off the electric circuit when a current of 0.4 A flows in the electric circuit R, it can be lit without interrupting the electric circuit when all the bulb-type fluorescent lamps and LED lamps are mounted. it can. In addition, when an incandescent bulb having an E26-type base that is most widely used is installed, the electric circuit can be cut off, and it is possible to configure a lighting apparatus with less trouble in actual use.

  In addition, according to the above, for example, even if it is a lighting fixture designed as an appliance dedicated to LED lamps with less power consumption, when the bulb-type fluorescent lamp is mounted, it is lit without interrupting the electric circuit, Its power consumption is approximately 10 W or less, and there is no fear of temperature problems even when a bulb-type fluorescent lamp is mounted. However, when the current fuse 13D is configured to cut off the electric circuit when a current of 0.1 A flows in the electric circuit R, the electric circuit can be cut off when all incandescent bulbs and almost all bulb-type fluorescent lamps are mounted. It is also possible to configure a lighting fixture dedicated to LED lamps.

  In the present embodiment, the current fuse is used as the interrupting member that interrupts the electric circuit R. However, a temperature fuse that detects the temperature and interrupts the electric circuit may be used. In this case, a temperature fuse for detecting the temperature of the instrument body 11, for example, the temperature in the vicinity of the terminal block 14 where the wires w1, w2, etc. are concentrated is provided in the instrument body 11 at a position where it is not exposed in the attached state. The set temperature of the temperature fuse to be used can be set, for example, by obtaining in advance the temperature in the vicinity of the terminal block when an incandescent bulb is attached or when a bulb-type fluorescent lamp is attached.

  From the above, in the present embodiment, the current fuse 13A is configured to cut off the electric circuit when a current of 0.3 A flows in the electric circuit R. In other words, the light fixture 10 that can prevent the misuse of the incandescent lamp L2 is configured by using the bulb-type fluorescent lamp L1 having the E-shaped base C1 that consumes less power than the incandescent lamp L2 as a light source.

  Next, the operation of the lighting fixture configured as described above will be described. As shown in FIG.1 (b), the lighting fixture 10 attaches the support 11a1 to the wall surface X of a room in the state which connected the electric wire w1 to the indoor wiring, and by attaching the flange 11a2 to this support, the base body 11a is attached. Installed on wall X. Next, the E26 type cap C1 of the bulb-type fluorescent lamp L1 is screwed into the socket 12 exposed on the surface side of the base body 11a, and the body cover 11b is surrounded by the bulb-type fluorescent lamp L1 in the base body 11a. Install with screws. At this time, the body cover 11b is attached so that the openings 11b1 and 11b1 are positioned in the vertical direction.

 Then, by turning on the switch on the separately installed wall surface and turning on the power, indirect illumination is performed in which the light of the fluorescent lamp is irradiated in the vertical direction of the wall surface X of the room from the openings 11b1 and 11b1 on the upper and lower surfaces. be able to.

  At this time, for example, when it is necessary to replace the bulb-type fluorescent lamp L1 over a long period of use, an inexpensive 40W incandescent lamp having the E26-type base C1 similar to the bulb-type fluorescent lamp L1 to which the user has been attached. When the light bulb L2 is purchased and the socket 12 is installed, the base of the incandescent light bulb is also E26 type and can be installed in the socket as it is.

  However, when the 40 W incandescent lamp L2 is mounted, a current of approximately 0.4 A flows through the electric circuit R, and the 0.3 A current fuse 13 provided in the electric circuit R immediately operates to interrupt the electric circuit. Thereby, the misuse of the incandescent lamp with respect to the lighting fixture 10 only for a bulb-type fluorescent lamp is prevented.

  As described above, the lighting fixture 10 of the present embodiment can be configured as a fixture dedicated to a bulb-type fluorescent lamp, and it is possible to solve various problems caused by mounting an incandescent bulb with a large amount of heat generation. This makes it possible to reduce the size of fixtures using light bulb-type fluorescent lamps and LED lamps that generate less heat, and to reduce the current capacity and thermal grade of components such as plastic parts, power supply wires and terminal blocks. Accordingly, it is possible to provide a lighting apparatus that is advantageous in terms of cost.

  As described above, in the present embodiment, the position where the blocking member 13 is provided on the instrument main body 11 is the rear surface side of the instrument main body 11, the rear surface side of the flange 11a2, the socket 12, and the connector in the attached state when there is a connector. The position which is not exposed may be sufficient. Furthermore, when there is a sensor component with a built-in instrument, it may be built into the sensor.

  As shown in FIG. 5, in the lighting fixture 10 ′ in which the globe 11 d is attached to the base body 11 a of the fixture body 11 by the L-shaped arm 11 c, the blocking member 13 is provided in the base body 11 a separated from the socket 12. It is comprised so that it may provide. According to this configuration, even when the globe 11d is removed by lamp replacement, the base body 11a provided with the blocking member 13 is present at a position completely separated from the socket 12, so that the blocking member 13 is more reliable. It is possible to configure at a position where it cannot be visually observed and is not exposed in the mounted state. Moreover, since it is also separated from the lamp, it is possible to completely prevent the blocking member 13 from being affected by the lamp temperature.

  In the present embodiment, the lighting fixture 10 can be directly attached to the ceiling, suspended, wall-mounted, or embedded in the ceiling, and the fixture body has a glove, shade, reflector, etc. as a light control body. May be attached, or a lamp serving as a light source may be exposed. Moreover, not only what attached one lamp | ramp to the instrument main body but multiple may be arrange | positioned. Furthermore, a large luminaire for facilities / businesses such as an office may be configured.

  In addition, in FIG. 5 which shows the modification of this embodiment, the same code | symbol was attached | subjected to FIGS. 1-4, and the detailed description was abbreviate | omitted. The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Appliance main body 12 Socket 13 Blocking member C1 E-shaped base L1 Bulb type fluorescent lamp L2 Incandescent bulb

Claims (3)

An instrument body;
A socket provided in the body of the instrument to which a light source having an E-shaped base is mounted;
A blocking member which is provided in an electric circuit connecting the socket and the power source and interrupts the electric circuit when a light source other than the compatible light source is mounted on the socket;
The lighting fixture characterized by comprising. The lighting apparatus according to claim 1, wherein the blocking member is configured by a current fuse that blocks at a current value of 0.1 to 0.3 A. The lighting apparatus according to claim 1, wherein the blocking member is provided in the apparatus main body at a position where the blocking member is not exposed in the attached state.

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